JB/T 3550.3-1999 Technical requirements for cylinder boring machines

JB/T 3550.3-1999 This standard is a revision of JBn 3552-83 "Technical requirements for the manufacture and acceptance of mobile cylinder boring machines". During the revision, it was only renamed "Cylinder boring machine number search" according to the provisions of GB/T 15375-1994 "Method for compiling metal cutting machine models", and the technical content has not changed. This standard is a supplement and concretization of GB/T 9061, JB/T 9872, JB/T 9874 and other standards. This standard is part of the JB/T 3550 series of standards "Cylinder boring machine", which includes the following four parts: JB/T 3550.1-1999 Cylinder boring machine parameters JB/T 3550.2-1999 Cylinder boring machine accuracy inspection JB/T 3550.3-1999 Cylinder boring machine technical conditions JB/T 3550.4-1999 Cylinder boring machine spindle end This standard specifies the requirements for the manufacture and acceptance of cylinder boring machines. This standard applies to cylinder boring machines. This standard was first issued in December 1983. JB/T 3550.3-1999 Cylinder boring machine technical conditions JB/T3550.3-1999 Standard download decompression password: www.bzxz.net

ICS25.080.20
Machinery Industry Standard of the People's Republic of China
JB/T3550.3-1999
Cylinder Boring Machine
Technical Conditions
1999-05-20 Issued
National Bureau of Machinery Industry
2000-01-01 Implementation
JB/T3550.3—1999
This standard is a revision of JBn355283 "Mobile Boring Machine The revision of the "Technical Requirements for Manufacturing and Acceptance" was only edited according to relevant regulations. According to the provisions of GB/T15375-1994 "Method for Compiling Models of Metal Cutting Machine Tools", the standard name was changed to "Parameters of Cylinder Boring Machines"; according to the provisions of GB/T9061-1988 "General Technical Requirements for Metal Cutting Machine Tools", the operating force of the handwheel and handle was changed to "the operating force of the spindle sleeve lifting handle should not exceed 100N, and the operating force of other handwheels and handles should not exceed 40N". Other technical contents have not been changed.
This standard is a supplement and concretization of GB/T9061, JB/T9872, JB/T9874 and other standards. This standard is part of the JB/T3550 "Cylinder Boring Machine" series of standards, which includes the following four parts: JB/T3550.1—1999
JB/T3550.2—1999
Cylinder Boring Machine Parameters
Cylinder Boring Machine Accuracy Inspection
Cylinder Boring Machine Technical Conditions
JB/T3550.31999
JB/T3550.41999
Cylinder Boring Machine Spindle End
This standard replaces JBn3552—83 from the date of implementation. This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the Boring and Drilling Machine Branch of the National Technical Committee for Standardization of Metal Cutting Machine Tools. The drafting units of this standard are Xi'an Special Machine Tool Factory and Shanghai Aviation Equipment Factory. This standard was first issued in December 1983. 1
1 Scopewww.bzxz.net
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Cylinder Boring Machines
This standard specifies the requirements for the manufacture and acceptance of cylinder boring machines. This standard applies to cylinder boring machines.
2 Referenced Standards
JB/T3550.3—1999
Replaces JBn355283
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/T1216—1985
Outer diameter in minutes
GB/T 5226.1—1996
Industrial machinery and electrical equipment Part 1: General technical conditionsGB/T9061—1988
GB/T167691997
JB/T3550.2-—1999
JB/T9871—1999
JB/T9872—1999
JB/T98741999
3 General requirements
Metal General technical conditions for cutting machine tools
Method for measuring the sound pressure level of metal cutting machine toolsPrecision inspection of cylinder boring machines
Precision classification of metal cutting machine tools
General technical conditions for machining parts of metal cutting machine toolsGeneral technical conditions for assembly of metal cutting machine toolsWhen accepting machine tools according to this standard, the remaining acceptance items in GB/T9061, JB/T9872, JB/T9874, JB/T9877 and other standards that are not specified in this standard must be inspected at the same time. 4 Accessories and tools
4.1 In order to ensure the basic performance of the machine tool, the following accessories and tools should be randomly supplied: tool holder, boring tool, special micrometer, centering rod, machine body clamping device, special wrench, etc. 4.2 The following special accessories that expand the performance of the machine tool are supplied according to the user's requirements and agreement: grinding rack, grinding wheel, single-cylinder boring rack, etc. 5 Processing and assembly quality
5.1 This machine tool is assessed according to the V-level precision machine tool of JB/T9871-1999. 5.2 The spindle sleeve must be wear-resistant and its hardness must not be less than 50HRC. 5.3 The machine body must be aging treated.
5.4 The bottom plane of the machine body is assessed according to the displacement guide rail. 5.5 The precision of the special micrometer head shall not be less than the first level specified in GB/T12161985. 5.6 The adjustment accuracy of the distance K between the positioning surface of the tool body at the end of the spindle and the spindle axis shall not exceed 0~+0.03mm, see Figure 1. Approved by the State Bureau of Machinery Industry on May 20, 1999, and implemented on January 1, 2000
JB/T3550.3—1999
1-Spindle: 2 Cutter body: 3 Positioning surface
5.7 The operating force of the handwheel and handle should be uniform within the travel range. The operating force of the main shaft sleeve lifting handle should not exceed 100N, and the operating force of other handwheel handles should not exceed 40N.
5.8 Inspect the machine tool noise according to the provisions of GB/T16769. Under the condition of idling, the noise sound pressure level shall not exceed 80dB(A)5.9 The machine tool is not allowed to have oil seepage or leakage. Machine tool idling test
The idling power of the machine tool (excluding the no-load power of the motor) shall not exceed 15% of the machine tool idling power index. Note: Select 10 machine tools with good assembly quality, measure their idling power (deduct the no-load power of the motor during measurement), and take the average value as the machine tool idling power index.
7 Machine tool load test
This series of machine tools should be subjected to the following load tests: a) Maximum torque test:
b) Maximum cutting main force test;
) Maximum power test.
Mass-produced machine tools are only subjected to load tests under the conditions of 2/3 maximum torque and 2/3 maximum feed resistance, but comprehensive spot checks should be carried out regularly. The number of spot checks is 2% of the batch, but each batch shall not be less than 1 unit. Machine tool precision inspection
8.1 Precision inspection shall be carried out in accordance with JB/T3550.2. 8.2G1, G2 and P1 tests should be conducted when the machine tool reaches a stable temperature at medium speed. 8.3 When inspecting working accuracy, the test specifications are as follows: The test material shall be gray cast iron or alloy cast iron, high phosphorus cast iron, ductile iron and other high-grade cast iron. Its surface hardness shall not be less than 190HBS, and the hardness difference shall not be greater than 30HBS.
The tool material and geometric angle shall be in accordance with the design requirements: The cutting amount shall be in accordance with the design requirements:
The boring length shall be the full stroke.
The maximum allowable value of the boring surface roughness R of the specimen is 2.5um. People's
Mechanical Industry Standard
Technical Conditions for Cylinder Bed
JB/T35503-1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
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