JB/T 9906.2-1999 This standard is a revision of ZBn J55 003-87 "Technical requirements for the manufacture and acceptance of internal grinding machines". This standard is a concretization and supplement to GB/T 9061-1988 "General technical conditions for metal cutting machine tools". This standard is part of the JB/T 9906 "Internal grinding machine" series of standards. This series of standards includes the following two parts: JB/T 9906.1-1999 Internal grinding machine series JB/T 9906.2-1999 Technical conditions for internal grinding machines The standards that match this series of standards are: GB/T 4682-1984 Accuracy of internal grinding machines GB/T 6471-1986 Parameters of internal grinding machines This standard specifies the requirements for the manufacture and acceptance of internal grinding machines. This standard is applicable to general purpose ordinary precision and high precision internal grinding machines. This standard was first issued in March 1987. JB/T 9906.2-1999 Technical requirements for internal grinding machines JB/T9906.2-1999 Standard download decompression password: www.bzxz.net

1CS 25.080.50
Machinery Industry Standard of the People's Republic of China
JB/T9906.19906.2—1999
Internal Grinding Machine
1999-05-20 Issued
National Machinery Industry Bureau
2000-01-01 Implementation
JB/T.9906.2—1999
This standard is based on the technical requirements of 2B55003—B7. This standard is an integration and supplement to B/T9061—1988 and other standards such as technical requirements for the use of pre-cutting machine tools. This standard is a filter and 2Bn. The technical content of J5503-B7 is consistent with that of J5503-B7, and only part of this standard is screened according to relevant regulations. This standard is part of the JB19906 internal grinding machine series standards, which includes the following two parts: JB/T9906.1-1999 internal grinding machine series harmonics R/T990G.2-1999 technical conditions for internal grinding machines. The standards matching this standard are: G1682-1994 internal grinding machine degree G6471-1986 internal interval number card standard from the date of implementation to replace J55003-7. This standard is proposed by the National Metal Cutting Machine Tool Standardization Technical Committee. This standard is the National Metal Cutting Machine Tool Standardization Technical Committee Grinding Machine Branch. The responsible drafting unit of this standard is Wuti Lathe Factory. This standard was first issued in March 198. Scope
Mechanical Industry Standard of the People's Republic of China
Internal Grinding Machine
Technical Conditions
This standard specifies the requirements for internal grinding machine specifications and acceptance. This standard is applicable to internal grinding machines of general precision level and high precision for general purpose. 2 Cited Standards
JB/T 9906.2-1999
Reference 8J55003
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard: At the time of publication of this standard, all versions are in force. All standards are subject to revision, and parties using the standard should explore the possibility of using the latest version of the standard, GB1103L—1995
GB.T 468219B4
Surface roughness parameters and their values
Internal dam grinding machine precision
CB/T5226.1-1996T industry mechanical and electrical equipment Part 1: General technical casesQB.T9061-1988
GB15760-1995
GRT1676-1997
JB4029-1985
JB.T9872-1999
JB/T9874-1999wwW.bzxz.Net
JB77-19
JB/T9924-1999
JB/T10 051-1999
3 General requirements
General technical requirements for metal cutting machine tools
General technical conditions for safety and maintenance of metal cutting machine tools Noise and sound pressure measurement of metal cutting machine tools
Technical requirements for safety protection of grinding wheel guards of grinders General technical requirements for mechanical parts of other metal cutting machine tools General technical requirements for assembly of metal cutting machine tools Determination of the cleanliness of metal cutting machine tools
Grinding surface ripple
Technical conditions for compliance with hydraulic system of metal cutting machine tools When accepting the machine tools according to this standard, the other acceptance items that are not integrated in this standard and are specified in standards such as B9061: J572: JB9874 must be inspected at the same time.
4 Accessories and tools
The accessories and tools listed in Table 1 are randomly supplied: approved by China Machinery Industry Bureau on 1999-05-20 and implemented on 2000-1-0
Accessory name
Cooling box
T Xuka road
Transmission belt
Han unloading line
Xie Jiaoping F
1B/T9906.2—1999
Net unloading.1
Shoe parts
Swivel decision excavator
Transmission head, wheel axle, etc.
Ring auxiliary wheel and grinding wheel history station
Machine tool essence
The accessories and tools listed in Table 1 can be increased or decreased according to the machine tool structure and user agreement. The characteristics of its fast-acting performance are provided according to user requirements and agreements. 5. Safety and health
5.1 The longitudinal movement of the machine tool should be limited or equipped with anti-collision insurance devices and be safe and reliable. 5.2 When the machine tool is in operation, there should be protective devices in the parts where chips and coolant fly.
Large, medium. 5.3 According to the provisions of GB 16769, the noise of the machine tool should be tested under the condition of no service level, the noise of ordinary high-precision machine tool should not exceed 85dB (A): the noise of high-precision machine tool should not exceed 75dB (A) 5.4 The ball wheel for end grinding should be equipped with a protective cover: the protective cover should meet the requirements of the grinding wheel protection plan specified in JB4029 5.5 The handwheel and handle should be tested according to Table 2. Table 2
Machine tool ghosting
-5- 30
Improve the wheel
The rest of the wheel
5.6 When connecting a machine tool that has not been accepted by this standard, the other inspection items in GB 15760 that have not been integrated into this standard must be modified at the same time. The inspection is carried out according to the acceptance criteria specified in the standards such as B/T5226. and JB.T005. 6 Processing and assembly quality
6.1 The following important castings are subjected to aging treatment after roughing: a) Casting body; b) Workpiece; c) Headstock; d) Feed slide and its base; c) Adjustment slide and its fingerboard; Feed slide (slide) and its base. 1. The selected parts must also be subjected to the first aging treatment after semi-hardening. B/T9906.2-199
6.2 The longitudinal guide pair of the bed is the main guide pair, and the wear-resistant measures are adopted. 6.3 The weaving guide pair of the bed: the main feed guide and the grinding feed guide: are subject to the requirements of "static pressure, sliding (rolling) guide", and the other guide shafts are subject to the requirements of "shift guide". 6.4 The following joint surfaces are subject to the requirements of "special joint surfaces"; u) the rotary joint surface between the bottom surface of the headstock and its corresponding accessories: the joint surface between the plated steel hand and its corresponding accessories: the joint surface between the mounting surface of the end grinding device and its accessories; d) the joint surface between the bottom surface of the grinding probe and the flat surface of the lower workbench. 6. The feed handwheel (when used for feeding) and the hydraulic operating handle are subject to the requirements of "for picking up the belt"; the feed handwheel [when used for adjustment] and the workbench handwheel are subject to the requirements of "uncommonly used wheels". Note: The speed of the lower wheel is judged according to the requirements of "frequently used handwheels". 6.6 The reverse stroke of the main feed handwheel shall not exceed the requirements of Table 3. Table
Machine tool axis grade
Ordinary precision grade
High precision grade
Inspection and method are as follows:
Through-type measurement
Set the indicator, and other probes and the moving parts to be inspected. Turn the handwheel in the [feed direction] positively to eliminate the idle travel, record the handwheel starting scale value, and record the indication data at the same time. The wheel continues to stop for one degree, as long as it is greater than the range, then turn the handwheel in the reverse direction to make the indication finger return to the original reading, and record the scale value of the wheel idle travel dial formula [1) calculation:
Reverse idle travel =,-
In the formula: H, n is the reverse value of the wheel scale, mmN is the wheel full value, mm
6. For the above head, the motor of the inner grinding wheel shaft and the end grinding wheel shaft should be together with the motor of the pulley and the oil pump (not With coupling) reverse motion and correction; after correction, the effective amplitude value of the residual unbalance disc caused by the root vibration shall not exceed the provisions of Table 4, 6.$ According to the provisions of JBT9, the machine tool is cleaned and inspected, and the internal grinding wheel shaft is inspected by weight. Its weight and pollution should not exceed 200mg:
Motor installation part
Head, drip vegetable
Internal solid grinding wheel shaft
Ruiao grinding wheel shaft
The effective resistance of the vibration
Burying certificate is used as
1 The residual unbalance of the motor mechanism can be measured on the machine tool. 2 The machine tool needs to be tested.
Two presses
7 Machine tool idling test
7.1 Temperature rise test of the machine
J9906.21999
The average idling time of each moving part of the machine tool shall not be less than 4. After reaching the stable temperature, the maximum overflow and temperature rise in the outer flow filter of the inner grinding wheel shaft shall not exceed the provisions of Table 5. 5
Headrest idling test【妞】
Oil pressure treatment
Special class
High efficiency
Select 10 sets of headrests with good quality, measure their idling power (deduct the motor no-load rate during measurement), and take the average as the index: the idling power should not exceed 15% of the index, and make a table speed running test
Follow the table speed, and also refer to Table 6. Use the indicator to check in any set area of ​​the working stroke, and the indicator body should rotate continuously.
Milk index version
Reverse pulse dyeing
Gao Ya Ting version
1. The position of the workbench is subject to the test
4.1 "1. The position difference of the workbench shall not exceed the following provisions: same delivery, 0.08mm; different compliance, 0.mm, 7.4.2 Pick up the inspection method
a Adjust the "workbench connection, and it is approximately equal to the number of pins lost: table?
Machine tool pressure level
General precision
Commercial level
6) The spacing between the lower table travel and the drag block is 50-300mm; 1 can move at different speeds 5 times:
d1 inspection H uses c.01mm indicator:
e) Error calculation is calculated by the maximum difference of the indicator readings
1 inspection is called the table in full adjustment stop time is greater than 0.55 . 21 sets of transmission, professional,
7.51. What is the difference between the workpiece and the workpiece?
JB/T9906.2-1999
The speed difference between the workpiece and the workpiece shall not exceed the limit of Table 8 45.1
Machine tool resistance and other points
Satton viscosity grade
"High precision world
7.5,2 Inspection method
Double active state|| tt||In the planning calculation, he 1 rain plus 0
In the theory of temporary addition
a) The operating speed of the high-precision machine tool is about 1.Sm/mm: The operating speed of the high-precision machine tool is 0.5mmin:) Under the relatively improved design regulations:
c) The error is calculated according to formula (2):
recognition error -21-
In the formula: and are the reciprocating stroke time of the worktable respectively. 8 Note: 1 The working table has a replacement part and a control handle, and its control range is not less than 3s. 7.6 Horizontal feed accuracy
7.6.1 The setting error of each feed and the calculated error of 10 consecutive feeds shall not exceed the requirements of Table 1, Table 9
Machine tool glue, etc.
General sugar level
Aomori Medical Waste
7.6.2 Inspection of the solid indication data, the thin child stops the measuring head and the headstock or grinding frame on the feed slide, so it is a small feed, continuous feed! The error formula (3) and formula [4] are used to calculate the error of each feed -u, and the error of each feed is calculated by using the formula: The actual feed amount for each feed is mm: The minimum nominal feed amount is mm, and the minimum nominal feed amount is mm. The machine bottom load test is performed on the grinding wheel machine without any system. The machine is tested (spot check) by using the rated power minus the design power. The test specification is a) the test piece is selected from the specification (design specification); the test piece is transferred to the low speed or medium speed: JR99n6.2-1999 The average speed of the motor is adjusted to the rated speed or the design specification! The work order is completed. High precision bed should not avoid the smallest test 9 Machine tool precision inspection 9.1 The machine tool precision inspection shall be carried out in accordance with GB 4682. The commercial precision inspection shall be carried out in accordance with relevant standards. 9.2 When the precision is lowered, the surface roughness of the test piece after grinding shall be in accordance with GB 1031. The value shall not be greater than the provisions in Table 10. The machine tool precision inspection shall be carried out in accordance with GB 9924. The average amplitude shall not be greater than the provisions in Table 11. The machine speed material quality grade shall be in accordance with GB 9924. The average amplitude shall not be greater than the provisions in Table 11.
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