JB/T 3697.1-1999 Accuracy inspection of radial milling machines

JB/T 3697.1-1999 This standard is a revision of JB 3696-84 "Accuracy of Radial Milling Machines". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is part of the JB/T 3697 "Radial Milling Machine" series of standards, which includes the following two parts: JB/T 3697.1-1999 Accuracy inspection of radial milling machines JB/T 3697-1996 Technical conditions for radial milling machines This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy inspection of radial milling machines. This standard is applicable to radial milling machines and universal radial milling machines with a worktable width of 200~300mm. This standard was first issued in June 1984. JB/T 3697.1-1999 Accuracy inspection of radial milling machines JB/T3697.1-1999 Standard download decompression password: www.bzxz.net

ICS25.080.20
Machinery Industry Standard of the People's Republic of China
JB/T3697.1-1999
Radial Milling Machine
Published on 1999-05-20
Precision Inspection
Implemented on 2000-01-01
State Machinery Industry Bureau
JB/T3697.1—1999
This standard is a revision of JB369684 "Radial Milling Machine Precision" , only editorial changes were made in accordance with relevant regulations during the revision, and the technical content has not changed
This standard is part of the JB/T3697 "Radial Milling Machine" series of standards, which includes the following two parts: JB/T3697.1-1999
Radial Milling Machine
Precision Inspection
JB/T3697-1996
Technical Conditions
Radial Milling Machine
This standard replaces JB3696-84 from the date of implementation. This standard was proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Milling Machine Branch of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The responsible drafting unit of this standard is Nantong Machine Tool Co., Ltd. This standard was first issued in June 1984.
1 Scope
Machinery Industry Standard of the People's Republic of China
Precision Inspection of Radial Milling Machines
This standard specifies the requirements and inspection methods for the geometric accuracy and working accuracy of radial milling machines. This standard is applicable to radial milling machines and universal radial milling machines with a worktable width of 200-300mm. 2 Referenced Standards
JB/T3697.1—1999
Replaces JB369684
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T17421.1-1998 General Rules for Machine Tool Inspection Part 1: Geometric Accuracy of Machine Tools under No-load or Finishing Conditions 3 General Requirements
3.1 Adjust the installation level of the machine tool in accordance with the provisions of 3.1 in GB/T17421.1-1998, and place the workbench in the middle of its stroke. Place a level gauge in the center of the workbench, and the readings of the level gauge in both the longitudinal and transverse directions shall not exceed 0.04/1000. 3.2 During inspection, the actual inspection sequence can generally be arranged according to the requirements of the installation and disassembly inspection tools, inspection convenience, and thermal inspection items. 3.3 During the working accuracy inspection, the inspection of the test piece should be carried out after finishing. 3.4 When the actual measured length is different from the measured length specified in this standard, the tolerance value shall be converted according to the measurable length in accordance with the provisions of 23.1.1 in GB/T17421.1-1998. When the conversion result is less than 0.005mm, it shall still be calculated as 0.005mm. 3.5 The direction parallel to the T-slot of the workbench is called the longitudinal direction, and the horizontal direction perpendicular to the longitudinal direction is called the transverse direction. 3.6 The vertical plane parallel to the longitudinal direction is called the longitudinal plane, and the vertical plane perpendicular to the longitudinal plane is called the transverse plane. 3.7 The inspection items can be increased or decreased based on the agreement between the user and the manufacturer. Approved by the State Bureau of Machinery Industry on May 20, 1999 and implemented on January 1, 2000
4 Geometric accuracy inspection
Inspection items
Straightness of vertical movement of the lifting platform:
aIn the transverse plane
bIn the longitudinal plane
Verticality of the vertical guide surface of the workbench facing the bed:
aIn the transverse plane
bIn Longitudinal plane
On 300 measuring length
0.025/300
0.025/300
Inspection tool
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.3.2.1
The workbench is located in the middle of the longitudinal and transverse strokes, and the workbench and saddle are locked.
Put the angle ruler on the workbench: a. In the transverse plane; b. In the longitudinal plane. Fix the indicator so that its probe touches the angle ruler inspection surface. Adjust the angle ruler so that the indicator readings are equal at both ends of the measuring length. Move the lifting platform for inspection.
Calculate the errors of a and b respectively.
The error is calculated as the maximum algebraic difference of the indicator readings
5.5.2.2.2
The workbench is located in the middle of the longitudinal and transverse travels, and the workbench and the bed saddle are locked.
Put the angle ruler on the workbench: a. In the transverse plane; b. In the longitudinal plane. Fix the indicator so that its probe touches the angle ruler inspection surface, move the lifting platform, and read the readings after locking.
A and b errors are calculated separately.
The error is measured by the maximum difference of the indicator readings. JB/T3697.1-
Inspection items
Vertical degree of vertical
movement of the spindle sleeve to the worktable
aIn the transverse plane
bIn the longitudinal plane
Motorized feed:
0.015/125
a≤90°
0.015/125||t t||Manual feed:
0.020/125
0.020/125
Inspection tool
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-19985.5.2.2.2
The workbench is located in the middle of the longitudinal and transverse strokes, and the rocker arm, turntable, workbench, bed saddle and lifting table are locked.
Put the angle ruler on the workbench: a. In the transverse plane; b. In the longitudinal plane. Fix the indicator so that its probe touches the angle ruler inspection surface. Move the spindle sleeve for inspection.
Calculate the errors of a and b separately.
The error is calculated by the maximum difference of the indicator readings5.5.2.2.2
The workbench is located in the middle of the longitudinal and transverse strokes. Lock the rocker arm, turntable, workbench, saddle and lifting table.
Put the angle ruler on the workbench: a. In the horizontal plane; b. In the longitudinal plane. Fix the indicator so that its probe touches the angle ruler inspection surface. Move the main shaft sleeve and read the reading after locking.
Calculate the a and b errors separately.
The error is measured by the maximum difference of the indicator readings. JB/T3697.1-
Inspection items
The flatness of the work table surface is within 1000 length. For every increase of
1000 in the length of the work table, the tolerance value increases by 0.005.
The maximum tolerance value is 0.00
Local tolerance:
0.020 on any 300 measuring length
Inspection tools
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.3.2.2; 5.3.2.3
The work table is located in the middle position of the longitudinal and transverse strokes, and the lifting platform and saddle are locked.
Inspect with a ruler:
Place equal-height blocks on the three reference points a, b, and c of the work surface as shown in the figure. Place the ruler on equal-height blocks ac, and place an
adjustable block at point e. Adjust it so that it contacts the ruler inspection surface. Then place the ruler on blocks b-e, and place an adjustable block at point d. Adjust it so that it contacts the ruler inspection surface. In the same way, place the ruler on blocks dc and bc, and determine the adjustable blocks at the positions h and g
, respectively. Place the ruler in the orientation shown in the figure. Use the gauge block to measure the distance between the work surface and the ruler inspection surface.
The error is measured by the maximum algebraic difference of its readings. Use spirit level to inspect:
Perform according to the method shown in Figure 44 of GB/T17421.1-1998
JB/T3697.1-
Inspection items
Parallelism of worktable movement to worktable surface
a Horizontal:
Runout of spindle end
a Radial runout of spindle centering shaft
neck (applicable to
machine tools with centering shaft neck);
b Spindle Axial movement of the shaft: The runout of the spindle shoulder bearing surface (for machine tools with reference bearing surfaces) is 0.025 on any 300 measuring length. The maximum allowable error is 0.0. Inspection tool Indicator Indicator Special inspection rod Inspection method Refer to GB/T17421.1-1998 related provisions 5.4.2.2.2
Place two equal-height blocks on the work surface, and place the ruler on the equal-height blocks: a. horizontal; b. vertical.
Fix the indicator so that its probe is located at the center of the vertical and horizontal strokes and touches the ruler inspection surface. Move the workbench for inspection.
a. When inspecting horizontally, the workbench and the lifting platform are locked.
b. When inspecting vertically, the bed saddle and the lifting platform are locked. Calculate the errors of a and b separately.
The error is measured by the maximum difference of the indicator readings a.5.6.1.2.2
b.5.6.2.2.1;5.6.2.2.2
c.5.6.3.2
Fix the indicator so that its probe touches: a. The surface of the spindle centering journal; b. The center of the end face of the special inspection rod inserted into the spindle taper hole; c. The spindle shoulder bearing surface near the edge. Rotate the spindle for inspection.
The errors of a, b, and c are calculated separately.
The error is measured by the maximum difference of the indicator readings. When testing items b and c, an axial force F specified by the manufacturer should be added through the spindle centerline (no force is required for spindles with axial clearance eliminated) JB/T3697.1-
Test items
Radial runout of the spindle taper hole axis
a Close to the spindle end
b 300mm from the spindle end face
Vertical straightness of the spindle rotation axis to the work table:
a In transverse plane
bIn longitudinal plane
0.025/300
a≤90°
0.025/300
Inspection tool
Indicator
Inspection rod
Indicator
Special inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.6.1.2.3
Insert the inspection rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the inspection rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 90° relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
Calculate the errors of a and b respectively.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse travels. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is installed on a special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the test rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection once.
The a and b errors are calculated separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the workbench or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the workbench is 0.010 in any 300 measuring length The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-Longitudinal.
Fix the indicator so that its probe is located at the center of the longitudinal and transverse strokes and touches the flat ruler inspection surface. Mobile workbench inspection.
a When inspecting horizontally, the workbench and lifting platform are locked.
b. When inspecting longitudinally, the bed saddle and lifting platform are locked. a and b errors are calculated separately.
The error is calculated based on the maximum difference in the indicator readings a.5.6.1.2.2
b.5.6.2.2.1;5.6.2.2.2
c.5.6.3.2
Fix the indicator so that its probe touches: a. The surface of the spindle centering journal: b. The center of the end face of the special inspection rod inserted into the spindle taper hole; c. The spindle shoulder bearing surface near the edge. Rotating spindle inspection.
a, b, c errors are calculated separately.
The error is calculated based on the maximum difference in the indicator readings. When testing items b and c, an axial force F specified by the manufacturer should be added through the spindle centerline (no force is required for spindles with axial clearance eliminated) JB/T3697.1-
Test items
Radial runout of the spindle taper hole axis
a Close to the spindle end
b 300mm from the spindle end face
Vertical straightness of the spindle rotation axis to the work table:
a In transverse plane
bIn longitudinal plane
0.025/300
a≤90°
0.025/300
Inspection tool
Indicator
Inspection rod
Indicator
Special inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.6.1.2.3
Insert the inspection rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the inspection rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 90° relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
Calculate the errors of a and b respectively.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse travels. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is installed on a special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the test rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection once.
The a and b errors are calculated separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the workbench or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the workbench is 0.010 in any 300 measuring length The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-Longitudinal.
Fix the indicator so that its probe is located at the center of the longitudinal and transverse strokes and touches the flat ruler inspection surface. Mobile workbench inspection.
a When inspecting horizontally, the workbench and lifting platform are locked.
b. When inspecting longitudinally, the bed saddle and lifting platform are locked. a and b errors are calculated separately.
The error is calculated based on the maximum difference in the indicator readings a.5.6.1.2.2
b.5.6.2.2.1;5.6.2.2.2
c.5.6.3.2
Fix the indicator so that its probe touches: a. The surface of the spindle centering journal: b. The center of the end face of the special inspection rod inserted into the spindle taper hole; c. The spindle shoulder bearing surface near the edge. Rotating spindle inspection.
a, b, c errors are calculated separately.
The error is calculated based on the maximum difference in the indicator readings. When testing items b and c, an axial force F specified by the manufacturer should be added through the spindle centerline (no force is required for spindles with axial clearance eliminated) JB/T3697.1-
Test items
Radial runout of the spindle taper hole axis
a Close to the spindle end
b 300mm from the spindle end face
Vertical straightness of the spindle rotation axis to the work table:
a In transverse plane
bIn longitudinal plane
0.025/300
a≤90°
0.025/300
Inspection tool
Indicator
Inspection rod
Indicator
Special inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.6.1.2.3
Insert the inspection rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the inspection rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 90° relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
Calculate the errors of a and b respectively.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse travels. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is installed on a special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the test rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection once.
The a and b errors are calculated separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the workbench or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the workbench is 0.010 in any 300 measuring length The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-The center of the end face of the special inspection rod inserted into the spindle taper hole; c. The spindle shoulder support surface is close to the edge. Rotate the spindle to inspect.
a, b, c errors are calculated separately.
The error is measured as the maximum difference in the indicator readings. When inspecting items b and c, an axial force F specified by the manufacturer should be added through the spindle center line (for spindles with eliminated axial clearance, no force is required) JB/T3697.1-
Inspection items
Radial runout of the spindle taper hole axis
a Close to the spindle end
b 300mm away from the spindle end face
Vertical
straightness of the spindle rotation axis
to the work table:
a In transverse plane
bIn longitudinal plane
0.025/300
a≤90°
0.025/300
Inspection tool
Indicator
Inspection rod
Indicator
Special inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.6.1.2.3
Insert the inspection rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the inspection rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 90° relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
Calculate the errors of a and b respectively.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse travels. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is installed on a special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the test rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection once.
The a and b errors are calculated separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the workbench or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the workbench is 0.010 in any 300 measuring length The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-The center of the end face of the special inspection rod inserted into the spindle taper hole; c. The spindle shoulder support surface is close to the edge. Rotate the spindle to inspect.
a, b, c errors are calculated separately.
The error is measured as the maximum difference in the indicator readings. When inspecting items b and c, an axial force F specified by the manufacturer should be added through the spindle center line (for spindles with eliminated axial clearance, no force is required) JB/T3697.1-
Inspection items
Radial runout of the spindle taper hole axis
a Close to the spindle end
b 300mm away from the spindle end facewww.bzxz.net
Vertical
straightness of the spindle rotation axis
to the work table:
a In transverse plane
bIn longitudinal plane
0.025/300
a≤90°
0.025/300
Inspection tool
Indicator
Inspection rod
Indicator
Special inspection rod
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.6.1.2.3
Insert the inspection rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the inspection rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 90° relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
Calculate the errors of a and b respectively.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse travels. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is installed on a special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the test rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection once.
The a and b errors are calculated separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the workbench or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the workbench is 0.010 in any 300 measuring length The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-1-1998 related provisions 5.6.1.2.3
Insert the test rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the test rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the test rod, rotate it 90 degrees relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
A and b errors are calculated separately.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse strokes. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is mounted on the special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection.
Calculate the errors of a and b separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the worktable or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the worktable is 0.010 in any 300 The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-1-1998 related provisions 5.6.1.2.3
Insert the test rod into the spindle taper hole. Fix the indicator so that its probe touches the surface of the test rod: a. Close to the spindle end face: b. 300mm away from the spindle end face. Rotate the spindle for inspection.
Pull out the test rod, rotate it 90 degrees relative to the spindle, reinsert it into the spindle taper hole, and repeat the inspection three times in sequence.
A and b errors are calculated separately.
The error is calculated as the arithmetic mean of the four measurement results
5.5.1.2.1;5.5.1.2.4.2
The workbench is located in the middle of the longitudinal and transverse strokes. The spindle sleeve, rocker arm, turntable, workbench, bed saddle and lifting table are locked.
The indicator is mounted on the special test rod inserted into the spindle taper hole so that its probe touches the workbench surface: a. In the transverse plane; b. In the longitudinal plane. Rotate the spindle for inspection.
Pull out the inspection rod, rotate it 180 degrees, reinsert it into the spindle taper hole, and repeat the inspection.
Calculate the errors of a and b separately.
The error is calculated as half of the algebraic sum of the two measurement results
JB/T3697.1-
Inspection items
The straightness of the center of the worktable or
the reference T-slot is 0.010 in any 500 measuring length
The maximum allowable error is 0.030
The longitudinal displacement of the worktable is 0.010 in any 300 The maximum tolerance for the measured length is 0.015
The maximum tolerance for the center or reference is 0.040
Parallelism of the T-slot
Inspection tool
Indicator
Special slide
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.2.1.2; 5.2.1.2.1
Put two equal-height blocks on the workbench and place a flat ruler on the equal-height blocks. Place the special slide on the workbench and close to one side of the T-slot, and fix the indicator on it so that its probe touches the inspection surface of the flat ruler. Adjust the flat ruler so that the indicator readings are equal at both ends of the maximum measuring length. Move the special slide for inspection.
The error is measured by the maximum difference of the indicator readings 5.4.2.2.1; 5.4.2.2.2.1
The workbench is located in the middle of the horizontal stroke, and the saddle and lifting table are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.4.2.2.1; 5.4.2.2.2.2
The worktable is located in the middle of the longitudinal and transverse strokes, the spindle is located in the center of the worktable, and the rocker arm, worktable, saddle and lifting table are locked.
Fix the indicator so that its probe touches the gauge block inspection surface located in the center of the worktable surface. Turn the turntable and inspect after locking it. The error is measured by the maximum difference of the indicator readings. JB/T3697.1- Inspection items Verticality of the workbench facing the reference plane for mounting accessories on the end of the play arm (for machines with reference planes for mounting accessories): a. On the horizontal plane b. On the transverse plane Workbench facing the end of the play arm for mounting accessories 0.015/100 Measuring length at 100 Parallelism of the reference surface on the upper part (for machines with reference surfaces for accessory installation): a In the transverse plane b In the longitudinal plane Inspection tools Indicator Special inspection fixture Indicator Inspection method Refer to the relevant provisions of GB/T17421.1-1998 5.5.1.2.2 The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked. The special inspection fixture is installed on the accessory installation base. Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the inspection surface of the special inspection fixture. Move the bracket for inspection. Rotate the special inspection fixture 180° and repeat the inspection once. The error is calculated as half of the algebraic sum of the two measurement results.
5.4.1.2.2
The workbench is located in the middle of the longitudinal stroke, and the rocker arm is in the middle of the stroke. The rocker arm, turntable and lifting table are locked.
Place the indicator bracket with a flat base on the workbench so that the indicator probe touches the accessory installation reference surface. Move the bracket for inspection.
A and b errors are calculated separately.
The error is calculated as the maximum difference in the indicator readings JB/T3697.1-2.1; 5.4.2.2.2.1
The workbench is in the middle of the horizontal stroke, and the saddle and lifting platform are locked.
Fix the indicator so that its probe touches the side of the T-slot. Move the workbench for inspection.
The error is measured by the maximum difference of the indicator readings JB/T3697.1-
Inspection items
Verticality of the lateral movement of the worktable to the longitudinal movement of the worktable
Worktable surface shake
0.020/300
On the 300 measuring length
Parallelism of the arm movement
(in the transverse plane)
Inspection tools
Indicator
Indicator
Inspection method
Refer to the relevant provisions of GB/T17421.1-1998 5.5.2.2.4
Lifting table locking.
a Place the ruler on the worktable and adjust the ruler so that its inspection surface is parallel to the longitudinal movement of the worktable. Place the angle ruler on the work surface so that one side of it is close to the straight ruler. Then place the work surface in the middle of the longitudinal stroke and lock it.
b. Fix the indicator so that its probe touches the other side of the angle ruler. Move the work surface horizontally for inspection. The error is measured by the maximum difference in the indicator readings 5.4.2.2.1; 5.4.2.2.2.2
The work surface is in the middle of the longitudinal and transverse strokes, and the turntable, work surface, bed saddle and lifting table are locked. Place two equal-height blocks on the work surface and place the straight ruler on the equal-height blocks.
Fix the indicator on the rocker arm so that its probe touches the inspection surface of the straight ruler. Move the rocker arm and lock it for inspection. The error is measured by the difference of the indicator readings
JB/T3697.1-
Inspection items
Parallelism of turntable rotation to the work
table surface
Inspection tools
Indicator
Inspection method
Refer to the relevant pro
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.