JB/T 9904.3-1999 Technical requirements for spline shaft grinding machines
Some standard content:
ECS25.080.50
Machinery Industry Standard of the People's Republic of China
JBT9904.1-9904.3--1999
Spline Shaft Grinding Machine
Published on 1999-05-20
State Machinery Industry Bureau
2000-01-01 Implementation
JB/T9904.3-1999
This standard is based on the difference between ZBmJ55021-89 "Flower chain auxiliary machine technical plan" This standard is the specification and supplement of 6R/T9061--198 "Metal door machine general technical plan" and other standards: This standard is the technical content of 7Rn[55(M1-:89, and has been re-edited according to relevant regulations. This standard is part of the "99M flower chain shaft auxiliary machine" series of standards. The series of standards includes the following JD9904.1-1999 Evaluation Machine Series Model Spectrum
JDT9904.2---1999 Flower Brand Axis Rate Machine Accuracy Test JBT9904,3-1999 Spline Grinding Machine Technical Description Tea Price This standard is based on the actual H from 2Hm155U4! —This standard is the original A, B, and is the standard of the National Cutting Machine Standardization Technical Committee. This standard is the National Cutting Machine Standardization Technical Requirements Ma Joint Grinding Machine Branch. This standard is responsible for the contribution of: Shanghai Machine Tool || The standard was first issued in December 1970 as JR2 and revised for the first time in 1935. This is the second revision of the 11th edition of the People's Republic of China Mechanical Industry Standard Technical Conditions for Spline Shaft Grinders. The full standard specifies the requirements for the production and acceptance of spline shaft grinders. The standard is applicable to spline shaft grinders with a general grinding diameter of ~2m and ordinary precision. 2 Reference Standards JB/T9904.3—1999 5548 |tt||The texts contained in the following subtitles are incorporated into the provisions of this standard by reference. When this standard is published, the versions shown are valid. All standards are subject to revision. The parties using this standard should explore the possibility of using the following standard versions. GB/1145-—1985
6 Industrial machinery and electrical equipment - Part: Technical system for use GH5226.1—1996
9061198
GB:T3574—1992
GB 15760—1995
JA4D29-·.1985
9872—1999
9874—1999
JB/T 9877—1999
[B/T9964.2—1
JB:T1005[1449
3 General requirements
General technical case for metal cutting machine tools
Metal cutting machine tools static stiffness test general
Metal cutting machine tools general technical conditions for full protection of grinding wheel protection cover of grinding machine tools air protection technical requirements for mechanical processing of metal cutting machine tools Technical conditions for matching metal cutting machine tools
Precision test of chain shaft grinder
General technical conditions for hydraulic system of metal cutting machine tools When accepting machine tools according to this standard, it is necessary to inspect the remaining acceptance items that are not integrated in this standard, such as GB/T9061, JB/9872, JB/T9874, etc.:
4 Accessories and tools
4.1 The accessories and tools listed in Table 1 should be supplied randomly. 4.2 In order to expand the versatility of the machine tool, the special accessories listed in Table 2 shall be supplied according to the user's charges and cooperative design. Approved by Guohao Machinery Industry Bureau on May 20, 1999, implemented on January 1, 2000
Appendix name
Liquid tank
Machine parts
What is the name
Line opener
Suction tip installation
Safety and sanitation
JB/T9904.3—1999
Installation, calibration 1 1. Parts
Parts
Parts
Parts
Balanced grinding wheel
Deer spline
The machine tool's full protection should comply with the provisions of (1st 15760 and other standards).
The number of products is determined by the specifications
The quantity is not determined by the design|| tt||Machine tool size determination
Machine tool description specification
5.2 The fatigue system of the machine tool shall comply with the relevant provisions of JRT10051, and the air system of the machine tool shall comply with the relevant provisions of B/T5226.1.
5.3 When the machine tool is in working condition, it shall not meet the following requirements: 8) The indexing positioning pin of the headstock is not drawn into the indexing plate groove, and the workbench cannot be started: b) The upper workbench cannot be started if the machine is not in the start position: ) When the micro-wheel is started, the grinding head cannot be automatically lowered: d) The lower workbench is not in the left indexing position, and the indexing operation cannot be performed. 5.4 The full protection requirements of the grinding wheel shall comply with the provisions of H4029, and the processing and assembly quality
6.1 The following important parts shall be aged after baking:
b] [Workbench:
) Column;
Less side head first:
JR/T9904.3—1999
6.2 The bed body, door rail, soil shaft, digging screw, indexing plate and other ten important parts should take resistance measures. 6.3 The height of the bed, vertical extension and the whole machine should be in accordance with the "single pressure, flash (liquid) through the guide" requirements and verification. 64, the guide surface of the workbench and its matching head frame, the "transfer guide" requirements of the civil frame wave, 6.5 The following joints are set to the "special measurement of the joint surface" requirements assessment: a) The joint surface of the bed body;
b The joint between the wood body and the vertical body:
）The whole body of the road and the whole head drag are included: d grinding head body and single head drag cover standard and
6.6 vertical feed wheel travel repair specifications screen hand probe longitudinal force according to the "final competition on the wheel" requirements assessment: 1 work platform on the wheel according to the "small regular practice on the wheel" nausea need to be checked, the rest of the design requirements for the design requirements of the elements required by the side correction, 6.7 straight feed flat wheel anti-hole travel disk is not more than 110r. 6.8 head learning dynamic motor city law by the use of vibration, the rotor should be connected and the pulley to avoid the action level, and on the pulley correction ten. After the standard is corrected, the residual vibration effect of the whole machine shall not exceed 0.00:6." According to the B door 987? Shimei 5 filter inspection machine tool cleanliness. 6. The dresser assembly must ensure its reliability and stable movement. Please feel the stone specifications or design requirements. 7 Machine tool idling test
7.1 The temperature rise test of the machine tool
should be carried out normally at the maximum speed for not less than 4h. After reaching a certain temperature, the temperature rise of the main shaft of the vibration head should be measured inside the temperature adjustment shape. The temperature rise value is allowed to be tested outside the main shaft and corrected. 7.2 The idling rate test of the machine tool must not exceed the design requirements for the idling rate. 7.3 Initial accuracy test of linear motion 3.3.1 The error of each feed shall not exceed [00% of the feed mark, and the root error after 10 times of feed shall not exceed 150% of the previous feed mark. 7.3.2 Check the small measuring instrument on the workbench. The measuring head shall touch the main and auxiliary surfaces. The measuring head shaft bearing sensing wheel axis shall be roughly within the working return half surface. The minimum feed amount shall be used for feeding. The error shall be calculated according to the formula (2) for 100% feed cumulative error after 10 times of feed: \|tt|| Annual feed amount:
Product minimum feed amount
T.4 Inspection of reciprocating accuracy difference 7.4 The reciprocating speed difference shall not exceed 10%. 7. 4. 2 Test 5:
a.1 The working speed is .5-2mmin;
JB9904.3-1999
b) The worktable travel should be within the maximum grinding length range:) Calculate according to formula (3)
error 2 (,)
In the formula: and are the single-stroke time of the worktable. 5T is the price of the commutation accuracy test
. 5.1 The commutation error should not exceed the provisions of Table 1.
7.5.2 Inspection operation;
u) 1. Working speed, low speed is 0.5--2.nm/min, medium speed is 3.0m4.0m/min; b) T worktable stroke is 20~3(mm;
c) Note the number of repetitions, the same speed and speed each force type: dl inspection tool uses 0.01mm indicating indicator
error points to indicate the maximum difference in the reading number. Note: When the grid is trapped, 1.The workbench stays at the measuring end for 2 seconds. 7.6 Inspection of headstock indexing action
6.1 The indexing action of the headstock is correct: the indexing time of each indexing is not more than 2 minutes. The indexing time is counted from the positioning pin. The indexing disk rotates until the positioning pin can be inserted. 7.6. The working price reversing and headstock positioning should be accurate and reliable. The time from the workbench stopping signal to the indexing action completion and the start of the reversing of the T table should not be more than 3 seconds.
8 Machine tool load test (spot check)
This series of machine tools only conducts the following load tests: 8.! The headstock motor reaches the maximum dynamic test specified in the design. The following are the test specifications:
3) The T-piece is connected to the current definition of PI item in JB99042-1999: b) The workbench speed is 6.0~8.n1/min:
! 8.2 Cutting speed test
Use the cutting speed test, the test range is as follows:
a) 1 The cutting wheel and the cutting machine should be the same as the grinding wheel;) The working speed is 2.04.0mmlm;
JRT9904.3—1999
d) The key point is to feed vertically at a speed of 0.0mm and continuously feed 10 times (without division) after there is no spark at the light magic rate (without division, the ratio of the two sides of the key and the grinding agent to the trace feed should not be less than ). 9 Machine tool sugar content inspection
9, 1 Tip speed inspection 9904.2 feed, 9,2.A/9904.21999 G2, G3, When testing G9 and P1, the machine tool should reach a stable temperature after the test
0.3! When testing, the grinding specifications are as follows: a) ". Compensation / T9904.2-1999 P1 provisions; b) can set a new wheel;
c) 1. The workbench standard is 0.5-2.0m/min
with the minimum feed rate, one-way feed rate, the second time: no feed grinding is not difficult. 9.41. The surface roughness R of the test workpiece in the workpiece, the maximum allowable value is 0.8μmr Static stiffness and relative vibration test (test) 10.1 The stiffness test can be carried out according to the method specified in Appendix A, the rotation test and record the indicated data. 10.2 The relative vibration test can be carried out according to the method specified in Appendix B (Reminder Appendix) and record the indicated data. Record data. 21
Measuring tools and measuring instruments
/904.3—1999
(According to the appendix
Flower shaft bed static stiffness test method
Steel simulated image wheel, test spindle, indicator. A2 Test method
The machine is idle for no less than 1h, so that the dynamic and mechanical properties of each moving part or machine are normal and balanced. Put the workbench down from the machine tool position, then remove the grinding wheel, replace it with a potassium simulated grinding wheel, install the wind measuring tool and this according to Figure A1, and drive the stirring feed handwheel to connect the simulated wheel with the test spindle B—B
1 second wheel shaft: 2-simulation wheel, 3-frame tip; 4-head: 5-test center auxiliary: 6-finger not according to Figure A1
In the test spindle The load is increased every time between the simulated wheel and the bearing. When loading, preload 50N: then, load to the specified value listed in Table A1 every 5 seconds, and record the change of the indicator value in Table A1. Load the wheel in stages for "times", and take the average value of the test results as the decision point. The force method for evaluating the mechanical strength index of the machinery department is in accordance with the provisions of GB/TS74: 22
Test disc outer diameter
Test core or public
Product test core length
Study core top type GNT145-1985www.bzxz.net
Oil loss core to sand core surface height
Test core shaft quality to pressure point single height!
Fast wheel shaft two force application points are separated from each other
Load displacement
JB:T 99n4.3—199y
Indicator reading μ1:1
Second time
Third time
Day 1 Special measuring tools and measuring instruments
IR.T 9904.31999
(Small appendix)
Spline shaft and machine tool relative vibration test method
Measurement method: Spline shaft and magnetic sensor, measuring instrument 2 Test method: The machine tool should run idle for not less than [h, and the action and clearance of moving parts or structures should reach positive belt and balance, and the working bamboo should be placed in the bad bed towel position, and then the measuring ears and instruments should be installed according to Figure B1. In the idle running condition, the head frame and the mobile workbench are not rotated, and the grinding wheel frame is moved, and the amplitude value (and continuity value) of the vibration caused by the running parts of the wheel frame relative to a (disordered system) is directly read from the measuring instrument! If the grinding wheel soil shaft has two speeds, both are measured. [a head frame: 2-response body:?-do electrical sensor: 4-measurement folding spindle; a Ni frame: 6-full disassembly instrument BIT 9904.31999
(Small Appendix)
Relative vibration test method of spline shaft
Measurement spindle, magnetic sensor, measuring instrument
The machine tool is idle for not less than [h, the action and clearance of the moving parts or structures are in a positive and balanced state, the workpiece is placed in the position, and then the measuring head and instrument are installed according to Figure B1. Under the idle running condition, the head frame and the moving worktable are not rotated, the grinding wheel frame is moved, and the amplitude value (and continuity value) of the vibration caused by the running parts of the wheel frame relative to a (system) is directly read from the measuring instrument! If the grinding wheel spindle has two speeds, both are measured. [1-head frame: 2-body:?-electric sensor: 4-measuring spindle; 1-frame: 6-full disassembly instrument BIT 9904.31999
(Small Appendix)
Relative vibration test method of spline shaft
Measurement spindle, magnetic sensor, measuring instrument
The machine tool is idle for not less than [h, the action and clearance of the moving parts or structures are in a positive and balanced state, the workpiece is placed in the position, and then the measuring head and instrument are installed according to Figure B1. Under the idle running condition, the head frame and the moving worktable are not rotated, the grinding wheel frame is moved, and the amplitude value (and continuity value) of the vibration caused by the running parts of the wheel frame relative to a (system) is directly read from the measuring instrument! If the grinding wheel spindle has two speeds, both are measured. [1-head frame: 2-body:?-electric sensor: 4-measuring spindle; 1-frame: 6-full disassembly instrument BI
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