JB/T 3732.1-1998 Gear shaving machine performance test method

This standard specifies the performance test items, test conditions and test methods for gear shaving machines. This standard is applicable to type inspection, product level evaluation and product quality spot check of gear shaving machines with a maximum workpiece diameter of 12 to 500 mm. JB/T 3732.1-1998 Performance test method for gear shaving machines JB/T3732.1-1998 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T3732.1-1998
Gear Shaving Machine
Published on July 17, 1998
Performance Test Specification
Implemented on December 1, 1998
State Machinery Industry Bureau
JB/T3732.1-1998
This standard is a revision of GB9061-88 "General Technical Requirements for Metal Cutting Machine Tools" This series of standards is a supplement and concretization of GB/T1357492 "General Rules for Static Rigidity Test of Metal Cutting Machine Tools". Under the general title of "Gear Shaving Machine", this series of standards is divided into the following four parts: Part 1 (i.e. JB/T3732-94): Accuracy; Part 2 (i.e. JB/T3731-92): Parameters; Part 3 (i.e. JB/T609492): Series Model Spectrum; Part 4 (i.e. JB/T3732.1-1998): Performance Test Specification. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of Chongqing Cylindrical Gear Machine Tool Research Institute. The drafting units of this standard are Nanjing Second Machine Tool Factory and Chongqing Machine Tool Factory. The main drafters of this standard are Cao Xiuying, Bei Shengtan, Shen Jianping, Xu Changchun, Wu Xiaohua, Wang Jinsheng, 1
1 Scope
Machinery Industry Standard of the People's Republic of China
Gear Shaving Machine Performance Test Specification
This standard specifies the performance test items, test conditions and test methods of gear shaving machines. JB/T3732.1-1998
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This standard is applicable to type inspection, product level evaluation and product quality spot check of normal production of gear shaving machines with a maximum workpiece diameter of 125 to 500 mm.
2 Referenced Standards
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 will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB4215—84
GB9061—88
GB 1009588
GB/T1357492
GB/T16769—1997
JB/T373294
General requirements
Determination of noise power level of metal cutting machine tools General technical conditions for metal cutting machine tools
Precision of involute cylindrical gears
General rules for static stiffness inspection of metal cutting machine tools
Method for measuring noise sound pressure level
Metal cutting machine tools
Precision of gear shaving machines
The test machine tool shall be tested after passing the inspection according to JB/T3732. There shall be no obstacles within 2m around the test machine tool. The test machine tool shall be installed and adjusted according to the product manual and shall comply with the requirements of 6.2 of GB9061-88. When the working table or tool holder of the test machine tool is not in a specified position, it shall be placed in the middle of its stroke. The instruments and meters used in the test shall be qualified and their accuracy shall meet the test requirements of the test items. The motion axis code of the machine tool is shown in Figure 1. Type I
X-longitudinal;
Approved by the State Machinery Industry Bureau on July 17, 1998 Type II
Y-tangential: Z-radial
Implemented on December 1, 1998
4 Test items
JB/T3732.1-1998
Gear shaving machine test items are shown in Table 1. The order of the test items can be adjusted according to the convenience of the test. Table 1
5 Test content
Test items
Vibration resistance cutting test
Productivity test
Machining accuracy dispersion test
Linear motion unevenness test
Noise test
5.1 Vibration resistance cutting test
5.1.1 Test conditions
5.1.1.1 Test piece material: 45 steel (normalizing). 2 Test piece parameters shall comply with the requirements of the design documents. 5.1.1.2
5.1.1.3 Tool material: high-speed steel.
Cutting parameters should comply with the design document requirements. 5.1.2 Test methods
Test items
Static stiffness test
Thermal deformation test
Working test
Idle running relative vibration test
5.1.2.1First, use the cutting method to eliminate the gap in the feed system, and then shave once according to the radial feed amount and longitudinal feed speed specified in the design document until the test piece is processed, so that the main motor reaches the maximum power of the machine tool design, and record the main motor input power P, current I and main motor speed n.
5.1.2.2 After removing the test piece and the tool, keep the operation specification during cutting and measure the no-load power P of the main motor. 5.2 Productivity test
5.2.1 Test conditions
5.2.1.1 Test piece parameters
Spur gear
Test piece width: bp=25mm;
Test piece diameter: dp=（0.5~1）d;
Test piece module: m=（0.5~1）m
Test piece material: 45 steel (normalizing):
Test piece accuracy: Pitch deviation Afp is Grade 6 as specified in GB10095. Note: d-maximum workpiece diameter of machine tool, mm
m-maximum module of machine tool, mm.
5.2.1.2 Cutting parameters
As specified in the design documents.
5.2.2 Test method
JB/T3732.1-1998
Inspect the pitch deviation of the test piece and make a record. Prepare to record the time during the shaving process. 5.2.2.3 Determine the test piece parameters and cutting specifications in accordance with 5.2.1, adjust the machine tool, and perform cutting. 5.2.2.4 Record the maneuvering time t of a single piece in the cycle. The maneuvering time in a single piece processing cycle refers to the time from closing the door to opening the door after the workpiece processing is completed. Note:
5.2.2.5 Inspect the pitch deviation and tooth surface roughness R of the test piece after shaving. 5.3 Machining accuracy dispersion test
5.3.1 Test conditions
5.3.1.1 The accuracy of the shaving cutter and process equipment used in the test should meet the test requirements. 5.3.1.2 The gear used for the test shall be broken, and the pitch deviation Af before shaving shall be Grade 7 as specified in GB10095, and the gear normal variation shall be consistent.
5.3.1.3 Gear parameters and cutting specifications shall comply with the requirements of the design documents. 5.3.2 Test method
The machine tool continuously processes 30 to 50 test pieces.
5.3.3 Accuracy measurement and processing
5.3.3.1 The pitch deviation Af of the processed test piece shall be checked according to the processing number, and records shall be kept. 5.3.3.2 The statistical analysis method shall be used to calculate the average value X, standard deviation S, dispersion U and process capability index C of the test piece processing accuracy according to formula (1), formula (2), formula (3) and formula (4) respectively. Value: (1)
U=X+2S
Where: n is the total number of workpieces;
i is the workpiece serial number;
X is the precision value of the ith test piece;
T is the tolerance value.
5.4 Linear motion unevenness test
5.4.1 Test conditions
5.4.1.1 All parts of the machine tool shall be fully lubricated with the lubricating oil specified in the product manual. (3)
5.4.1.2 Before the test, the machine tool shall run at medium speed for 30 minutes and drive the worktable (or tool holder slide) to perform longitudinal reciprocating motion for 10 minutes. 5.4.2 Test method
The longitudinal feed shall be adjusted to the minimum feed speed specified in the design. At any position in the travel of the worktable (or tool holder slide), the motion unevenness (i.e. creep) shall be measured using a light shed measurement system or a laser interferometer measurement system. 5.5 Noise test
5.5.1 Test conditions
JB/T3732.1-1998
According to the product manual, adjust the feed mechanism to medium speed. 5.5.2 Test method
5.5.2.1 After the machine tool spindle runs at medium speed for 15 minutes, start the feed mechanism and cooling system. According to the provisions of GB/T16769, use a precision sound level meter to measure the sound pressure level dB (A) value of the machine tool spindle at each level of operation (forward and reverse) speed. 5.5.2.2 Measure the sound power value of the machine tool according to the provisions of GB4215 "Simplified Method". 5.6 Static stiffness test
5.6.1 Test conditions
5.6.1.1 Turn on the hydraulic system of the machine tool.
5.6.1.2 Adjust the various parts of the machine tool into position according to the processing status. 5.6.2 Test method
5.6.2.1 Make the longitudinal moving slide of the machine tool be in the middle position of the working stroke. 5.6.2.2 The ejector holder is in the middle of the working stroke, the test mandrel is installed between the ejectors, and a force device is placed between the middle of the shaving cutter spindle tool mounting area and the test mandrel. The movement direction and state of the relevant moving parts of the machine tool shall comply with the provisions of GB/T13574. 5.6.2.3 In the direction of the force, the indicator probe touches the shaving cutter spindle and the test mandrel respectively, and the indicator seat is adsorbed at the unchanged position when the machine tool is forced. The loading force F is divided into 4 to 5 levels and added step by step to the specified value, and the force and the corresponding displacement are recorded, and the measurement is repeated 3 times. After each measurement, the radial feed slide should withdraw from the test position and then enter the test position in the direction of the force state. 5.6.2.4 The position, load-bearing point and force direction of the machine tool parts and components shall comply with the provisions of Figure 2 and Table 2. Beatwww.bzxz.net
Indicator
Maximum workpiece diameter
Test mandrel diameter d
Distance between workpiece and tool axis L
Test mandrel length 1
5.6.3 Data processing
Test mandrel peak
5.6.3.1 The displacement of the shaving cutter spindle and the test mandrel in direction B under the specified loading force shall be calculated as the arithmetic mean of the results of three measurements of the shaving cutter spindle and the test mandrel respectively. 5.6.3.2 The relative displacement between the shaving cutter spindle and the test mandrel is calculated according to formula (5): 4
JB/T3732.11998
AZ=4Z/+|4Z2]
Wherein: △Z is the displacement of the shaving cutter spindle in the Z direction, mm; AZ is the displacement of the test mandrel in the Z direction, mm; △z is the relative displacement between the shaving cutter spindle and the test mandrel, mm. 5.7 Thermal deformation test
5.7.1 Test conditions
5.7.1.1 According to the product manual, adjust the spindle speed to half of the maximum speed (or half is one gear higher). 5.7.1.2 Machine tool status:
a) Before the test, the machine tool is at room temperature, and the lubricating oil of the machine tool is basically consistent with the room temperature (the difference does not exceed 2℃); b) The gear shaving tool holder, the ejector holder, and the longitudinal moving slide are all in the middle of their respective strokes. 5.7.2 Test method
5.7.2.1 When the machine tool is at room temperature, measure the accuracy of the following geometric accuracy items: a) The radial runout of the gear shaving cutter shaft journal;
b) The runout of the bearing surface of the gear shaving cutter shaft shoulder:
b) The coincidence of the axis of the gear shaving cutter shaft with the axis of the bearing hole; d) The parallelism of the longitudinal slide movement with the axis of the gear shaving cutter shaft 5.7.2.2 Place a displacement sensor between the tool holder and the workpiece spindle (as shown in Figure 3). Displacement sensor
5.7.2.3 The machine tool is continuously idle until the machine tool reaches a stable temperature state (the stable temperature state means that the temperature rise of the machine tool spindle bearing does not exceed 5℃ per hour). Then measure the accuracy of the accuracy items specified in 5.7.2.1, and measure the displacement between the tool holder and the workpiece spindle. 5.8 Working test
5.8.1 Test conditions
5.8.1.1 Cut the test piece according to the specifications and parameters specified in the product manual. 5.8.1.2 Test piece material: medium carbon steel normalized). 5.8.1.3 Test piece parameters should comply with the design document regulations. 5.8.1.4 Cutting specifications should comply with the design document regulations. 5.8.2 Test method
Cut the test pieces with the maximum workpiece diameter, maximum module and maximum machining tooth width respectively. 5
5.9 Idle running relative vibration test
5.9.1 Test conditions
JB/T3732.1—1998
5.9.1.1 Adjust the position of the machine tool components to be suitable for installing the relative sensor. The points for measuring relative vibration are shown in Figure 4. 5.9.1.2 The distance L between the workpiece and the tool axis is shown in Table 2. 5.9.2 Test method After the machine tool spindle and radial feed mechanism have run idle for 15 minutes, the radial feed motion is interrupted and the relative vibration of the workpiece spindle relative to the tool spindle in the Y and Z directions (i.e. the maximum vibration displacement peak-to-peak value) is measured at various spindle speeds. 6
Mechanical Industry Standard
Gear Shaving Machine Performance Test Specification
JB/T373211998
Published by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×12301/16 Printing Sheet 3/4
4 Number of Words 14.000
First Edition December 1998 First Printing December 1998 Printing Quantity 00,001-500
Price 10.00 Yuan
No. 98-1582 Test method
After the machine tool spindle and radial feed mechanism run idle for 15 minutes, the radial feed motion is interrupted and the relative vibration of the workpiece spindle relative to the tool spindle in the Y and Z directions (i.e. the maximum vibration displacement peak-to-peak value) is measured at various spindle speeds. 6
Mechanical Industry Standard
Gear Shaving Machine Performance Test Specification
JB/T373211998
Published by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×12301/16 Printing Sheet 3/4
4 Number of Words 14.000
First Edition December 1998 First Printing December 1998 Printing Quantity 00,001-500
Price 10.00 Yuan
No. 98-1582 Test method
After the machine tool spindle and radial feed mechanism run idle for 15 minutes, the radial feed motion is interrupted and the relative vibration of the workpiece spindle relative to the tool spindle in the Y and Z directions (i.e. the maximum vibration displacement peak-to-peak value) is measured at various spindle speeds. 6
Mechanical Industry Standard
Gear Shaving Machine Performance Test Specification
JB/T373211998
Published by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×12301/16 Printing Sheet 3/4
4 Number of Words 14.000
First Edition December 1998 First Printing December 1998 Printing Quantity 00,001-500
Price 10.00 Yuan
No. 98-158
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