JB/T 3732.2-1999 This standard specifies and supplements GB/T 9061-1988 "General Technical Requirements for Metal Cutting Machine Tools", JB/T 9872-1999 "General Technical Requirements for Machining of Metal Cutting Machine Tools" and JB/T 9874-1999 "General Technical Requirements for Assembly of Metal Cutting Machine Tools". This standard is part of the JB/T 3732 "Gear Shaving Machine" series of standards. This series of standards includes the following two parts: JB/T 3732-1994 Gear Shaving Machine Accuracy JB/T 3732.1- Gear Shaving Machine Performance Test Specification JB/T 3732.2-1999 Gear Shaving Machine Technical Conditions The standards that match this series of standards are: JB/T 3731-1992 Gear Shaving Machine Parameters JB/T 6094-1992 Gear Shaving Machine Series This standard specifies the manufacturing and acceptance requirements for gear shaving machines. This standard is applicable to gear shaving machines with a maximum workpiece diameter of 125~500mm. This standard was first issued on October 8, 1999. JB/T 3732.2-1999 Gear Shaving Machine Technical Conditions JB/T3732.2-1999 Standard Download Decompression Password: www.bzxz.net

ICS25.080.99
Machinery Industry Standard of the People's Republic of China
JB/T3732.2—1999
Gear Shaving Machine
1999-10-08 Issued
Technical Conditions
2000-03-01 Implementation
State Bureau of Machinery Industry
JB/T3732.2—1999
This standard is a concretization and supplement to GB/T9061-1988 "General Technical Conditions for Metal Cutting Machine Tools", JB/T9872-1999 "General Technical Conditions for Machining Parts of Metal Cutting Machine Tools" and JB/T9874-1999 "General Technical Conditions for Assembly of Metal Cutting Machine Tools" based on the structural characteristics of gear shaving machines and the requirements of users. This standard is part of the JB/T3732 "Gear Shaving Machine" series of standards. This series of standards includes the following three parts: JB/T3732—1994
JB/T37321—1998
Gear shaving machine accuracy
Gear shaving machine
Performance test specification
Gear shaving machine technical conditions
JB/T3732.2—1999
Standards matching this series of standards include: JB/T3731—1992
JB/T6094—1992
Gear shaving machine parameters
Gear shaving machine series spectrum
This standard is proposed by the National Technical Committee for Standardization of Metal Cutting Machine Tools. This standard is under the jurisdiction of the National Technical Committee for Standardization of Metal Cutting Machine Tools, Cylindrical Gear Machine Tool Branch. The responsible drafting units of this standard are: Nanjing Second Machine Tool Factory and Chongqing Machine Tool Factory. The main drafters of this standard are: Li Shihe, Yan Jianping, Liu Qiang, Jiang Xiaoyan, Yu Hongli, Wu Xiaohua. 1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Gear Shaving Machines
This standard specifies the requirements for the manufacture and acceptance of gear shaving machines. This standard is applicable to gear shaving machines with a maximum workpiece diameter of 125~500mm. 2 Referenced Standards
JB/T3732.2-1999
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/T5226.1—1996
GB/T9061—1988
GB/T10095—1988
GB 157601995
GB/T 16769—1997
JB/T3732—1994
JB/T9871—1999
JB/T 9872—1999
JB/T9874—1999
JB/T9877—1999
JB/T10051—1999
3 General requirements
Industrial machinery and electrical equipment Part 1: General technical conditions General technical conditions for metal cutting machine tools
Precision of involute cylindrical gears
General technical conditions for safety protection of metal cutting machine tools Metal cutting machine tools
Method for measuring sound pressure level of noise
Precision of gear shaving machines
Metal cutting machine tools
Precision classification||t t||Metal Cutting Machine Tools
General Technical Conditions for Machined Parts
Metal Cutting Machine Tools
Metal Cutting Machine Tools
General Technical Conditions for Assembly
Determination of Cleanliness
General Technical Conditions for Hydraulic Systems
3.1 When accepting machine tools according to this standard, the remaining acceptance items in GB/T9061, JB/T9872, JB/T9874 and other standards that are not specified in this standard must be inspected at the same time
3.2 Gear shaving machines belong to the IV grade precision machine tools specified in JB/T9871. When accepting machine tools according to this standard, they should be assessed according to the IV grade precision requirements specified in JB/T9871.
4 Accessories and tools
4.1 The following accessories and tools should be supplied randomly: a) Exchange gear: 1 set;
b) Workpiece bracket: 1 set;
c) Workpiece positioning ruler: 1 set:
d) Tool spindle washer: 1 set:
e) Anchor screw, washer, nut, washer (or anti-vibration washer): 1 set: f Special wrench: 1 set:
Approved by the State Machinery Industry Bureau on October 8, 1999 and implemented on March 1, 2000bzxZ.net
g) Dial indicator: 1 piece.
JB/T3732.2—1999
4.2 Accessories that expand the performance of machine tools shall be supplied according to user requirements and agreements. 5 Processing and assembly quality
5.1 The machined parts of the machine tool shall comply with the requirements of the drawings, process documents and standards such as JB/T9872. The assembly of the machine tool shall comply with the requirements of JB/T9874. 5.2 The bed, column, vertical slide body, tool holder body, longitudinal slide body (or workbench), ejector seat and other parts are important castings and should be aged after rough processing.
5.3 The longitudinal slide guide pair and radial guide pair are important guide pairs. Wear-resistant measures should be taken and should comply with the provisions of relevant standards. 5.4 The drum mechanism guide pair, vertical feed screw pair, main transmission gear pair, tool spindle, needle body and other parts should take wear-resistant measures. 5.5 The following joint surfaces shall be assessed according to the requirements of "important fixed joint surfaces": a) Joint surface between column and bed:
b) Joint surface between main transmission box and bed (or column). When the important fixed joint surface is inspected with a 0.03mm feeler gauge after tightening, it should not be inserted. 5.6 The joint surface between the bracket and the tool holder shall be evaluated according to the requirements of "particularly important fixed joint surface". In addition to the inspection by the color coating method, the particularly important fixed joint surface should not be inserted when inspected with a 0.03mm feeler gauge before and after tightening. 5.7 The longitudinal guide pair and radial guide pair shall be evaluated according to the requirements of sliding (rolling) guides. 5.8 The surface of the ejector seat guide, tool holder rotation, swivel body rotation and its matching parts shall be evaluated according to the requirements of "displacement guide". 5.9 The reverse idle travel of the radial feed handwheel shall not exceed 1/4r. 5.10 The cleanliness of the machine tool shall be inspected according to the method specified in JB/T9877. The tool holder, the inside of the slide plate, the lubrication system, and the hydraulic system shall be inspected by weight.
5.10.1 The impurities and dirt inside the tool holder and slide plate shall not exceed the requirements of Table 1. Table 1
Part name
5.10.2Cleanliness of hydraulic and lubrication system of machine tool≤200
Maximum workpiece diametermm
Weight of dirt
After the machine tool runs for 30min, take a sample from the oil return port of the hydraulic system (or lubrication system), generally not less than 200mL, and its impurities and dirt should not exceed 100mgL.
6Idle running test of machine tool
6.1Temperature rise test
The main motion of the machine tool is operated at low, medium and high speeds, and the high-speed operation time shall not be less than 1h, so that the spindle bearing reaches a stable temperature. Measure the temperature and temperature rise of the bearing near the shell of the tool spindle bearing, and the value shall not exceed the provisions of Table 2. 2
Bearing type
Sliding bearing
Rolling bearing
JB/T3732.2—1999
6.2 Feed mechanism shall be tested for idle operation at low, medium and high feed speeds Temperature rise
Fast moving mechanism shall be tested for idle operation at fast movement. Its movement shall be smooth, flexible and reliable, without obvious vibration and creeping. 6.3 The actual deviation of spindle speed and feed amount (or feed speed) shall not exceed 5% of the indicated value for step-variable transmission; and 10% of the indicated value for stepless transmission. 6.4 Action test
6.4.1 The tool spindle shall be tested for forward and reverse start, rotation and stop, and the continuous test shall be not less than 10 times, and it shall be flexible and reliable. 6.4.2 The longitudinal slide (or workbench) shall be tested for automatic feed and rapid movement disconnection and automatic stop and start at any given position within the travel range, and each test shall be not less than 5 times, and the action shall be reliable. 6.4.3 The center seat is clamped twice at both ends and the middle position of the entire stroke, and the clamping mechanism should be reliable. 6.4.4 The workpiece is clamped and released 5 times each, and the action should be reliable: when the machine tool is stopped, the workpiece clamping should be reliable. 6.4.5 According to the requirements of GB/T5226.1, the electrical system of the machine tool should be reliable. 6.4.6 According to the requirements of JB/T10051, the hydraulic system of the machine tool should be reliable. 6.4.7 According to the provisions of GB15760 and other standards, safety protection devices and insurance devices should be complete and reliable. 6.5 Noise inspection
Measure the noise sound pressure level of the machine tool according to the provisions of GB/T16769. The noise sound pressure level of the machine tool when it is running idle should not exceed 83dB(A). 6.6 Idle power test (spot check)
After the main axis of the force tool is idle for 30mm at a constant speed, measure the idle power of the main transmission system of the machine tool (excluding the no-load power of the main motor), which should not exceed the design requirements.
6.7 Continuous idle test of the whole machine
Under all functions, simulate the working state and do a continuous idle test without cutting. The operation time should not be less than 8h. The continuous idle conditions are as follows:
a) The feed speed is medium speed, and the tool speed is carried out at low, medium and high speeds respectively. b) The tool speed is medium speed, and the feed speed is carried out at low, medium and high speeds respectively. Among them, the feed stroke is the full stroke at low and medium feed speeds, and the feed stroke should not be greater than 23 of the full stroke at high feed speeds. The hydraulic, lubrication, cooling systems and other parts of the machine tool shall not leak. The oil in the rotating parts shall not be thrown out. The lubrication oil circuit should be unobstructed and the cutting fluid should be sufficient. The cutting fluid shall not be mixed into the hydraulic and lubrication systems. 7 Machine tool load test
Use cutting method to do the maximum power test of gear shaving machine. During the cutting process, make the main motor reach the design power (spot check). During the test, all parts of the machine tool should work normally. 8 Machine tool accuracy inspection
8.1 Accuracy inspection shall be carried out in accordance with JB/T3732. The pitch deviation of the gear used for working accuracy inspection before shaving shall be the 63
grade accuracy specified in GB/T10095.
JB/T3732.2—1999
2 The following items should be inspected when the machine tool is at medium speed and stable temperature:8.2
a) Radial runout of the shaving cutter shaft journal;
b) Runout of the shaving cutter shaft shoulder support surface;) Coincidence of the shaving cutter shaft axis with the support hole axis: d) Parallelism of the longitudinal slide movement to the shaving cutter shaft axis3 The repeat positioning accuracy of automatic radial feed should be repeatedly inspected 7 times in a row. The error is measured by the maximum difference in the indicator readings, and the allowable error is8.3
0.01mm.
Mechanical Industry Standard
Technical Conditions for Gear Shaving Machines
JB/T37322—1999
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
1/16 Printing Sheet 1/2
Word Count 10000
First Edition in March 2000
First Printing in March 2000
Print Quantity 1-500 Price 500 Yuan
No. 99-1583
Mechanical Industry Standard Service Network: http/AvwwJB.ac.cn66
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