This part specifies the testing methods and testing equipment for various keyway broaches. These methods are not exclusive. This part is applicable to the testing of keyway broaches produced according to GB/T 14329.1~4. JB/T 10231.19-2002 Tool product testing methods Part 19: Keyway broaches JB/T10231.19-2002 Standard download decompression password: www.bzxz.net

CS25.100.25
Mechanical Industry Standard of the People's Republic of China
B/T10231.19—2002
Tool Product Inspection Methods
Part 19: Keyway Broach
Toolinspectionmcthods
Pirt f9: Keyway broachcs
2002-07-16 Issued
2002-12-01 Implementation
The State Economic and Trade Commission of the People's Republic of China Issued Foreword
Current Standardization
Span Test Basis
Test Method and Test Dimensions
4.1 Appearance
Deformation Surface Torsion Resistance
Alignment Tooth Size and Consistency with the Same Dimensions Tooth Width and Rest Information
Body Bottom and Side Values ​​of the First Line
Order Tooth Example for Items The feasibility of
the center surface of the tool body
the inner height and the corresponding gear teeth
the height of the handle and the width
the shape and position tolerance of the lower mold of the handle
the back angle...
the writing and broadcasting
materials and bumps
marking and packaging
JB/T10231.192002
JB/T10231.19-2002
This standard is issued by the China Machinery Industry Federation. Foreword
This standard is the national tool standardization technical committee. The standard is produced by Harbin's first tool! The main contributors are: Shi Xinzi, Wang Jia'an, Wang Yalan, Zhang Xinguo, Chen Ketian, 1 Fan Gu
Tool product testing methods
Part 19: Key components
JB/T102$1.19—2002
This part specifies various chain pull and testing methods and testing instruments. These methods are not standard. This part is subject to the strict key pull of GT149.1. 2 Normative references
The clauses in the following documents become the clauses of this part through the original part of T10231. For the application documents with the specified period, the amendments to the documents after the expiration do not include the contents of errata! Or revised versions are not applicable to this part. However, the parties who have reached an agreement based on this part are encouraged to investigate whether they can use the latest version of these documents. This is a document for the use of the specified period, and its latest version is applicable to this part CB.T14329.11993 chain type and size G14329.21 93 width 7 body lithium pull type and size QB/T 14320.3--1993
belt angle tooth key donation tension type and size industry
GR/T14379.1—1993
chain groove pull general technical conditions
JB10231.1-20K1 tool product inspection method Part 1: 3 test basis
related product standards.
4 test methods and test equipment
4.1 external smoke
external smoke detection according to JB/T10221.1—2001 wide chapter provisions, 4? The roughness of wheat flour and the roughness of polishing shall be in accordance with the provisions of Chapter 5 of JB/T0231.1-2. 4.3 Calibration of the tooth height and the consistency of the precision cutting ruler with the same size 4.3.1 Inspection method
Use the corresponding size of the tooth height of the gauge block, the calibrator or the rod to measure the tooth height of the broach: see Figure 1, take the bottom surface of the broach body as the reference surface, the dynamic measuring station seat, the micro-active measuring station or the measuring ruler, take the smaller one as the measured height value, and measure the tooth height of the calibrated and the cutting teeth with the same size: the difference between the measured value and the minimum value is the consistency 4. 3.2 Testing equipment
Five-grade comparison, hitting rod + gauge or hitting micrometer 4.4 Tooth width and blade width bzxz.net
4.4.1 Testing method
Use the starting rod card or hitting rod to measure the blade width: Make the measuring blocks into the basic size of the internal width card, use the ruler to confirm the zero position of the tool, and test the whole tooth case
Use the lower micrometer to directly test the body width, and take 35 positions on the upper and lower lengths to measure 4.4.2
The support rod gauge is made into a machine lower micrometer, centrifuge, and five-grade warp block. JBT10231.192002
4.5 Straightness of bottom and side surfaces of tool body
4.5.1 Inspection method
Small area
See Figure 2. When using a special straightness inspection tool to inspect and measure, place the gauge on a standard flat ruler or zero-grade flat plate and adjust the indicator dial position. Then adjust the gauge on the effective broach for inspection. Take the maximum value of the deviation between the indicator dial number and its equal value on the entire length of the inspected surface for inspection.
4.5.2 Inspection tools
Straightness inspection tool: remove the indicator dial with a straightness value of 0.U1mm, standard flat ruler or zero-grade flat plate, and inspection plate. 4.6 Parallelism of the side surface of the cutter tooth to the same surface of the cutter body 4.6.1 Inspection method
On the inspection flat plate inspection tool, carry out the long force test as shown in Figure 3. Place the flat plate on the test piece, and get the force report from the contacts on the side of the cutter tooth. Check 3-5 teeth on the cutter tooth side, and take the inner and outer readings of each gauge in turn, and take the difference between the upper and lower indexes of the sample. Same method: 4.6.2 Testing equipment
Special testing equipment, indicator with a graduation value of 0.01u, to test the symmetry between the center plane of the 4.7 cutter teeth and the center plane of the cutter body. 4.7.1 Testing method
See Figure 4. Use a special testing tool on the test board to test. Place the testing equipment flat between the cutter body and the contact of the indicator with the tooth edge. The tooth 2
IK/T10231.19--2002||tt| | Take the gear indicator setting number, then turn the force steady 1, (at the same step, use the same method to read the small dial reading, collect the difference between the maximum and minimum values ​​twice, and then take two points on the tooth length square to measure. Take the one with the largest difference. 2
4.7.2 Detector display
Special potential tool, value value r monitoring table, pick up and calibrate 4.B cutter tooth height and adjacent cutting tooth tooth height difference 4.B.1 Detection method
Use zero-level sub-scale to measure , see Figure 5. Take the bottom of the force body as the measurement reference: measure the actual height H of each tooth one by one. The difference between the actual tooth rise of the adjacent average teeth () and the designated tooth rise is the tooth rise difference of the adjacent designated teeth. 5
4.8.2 Inspection tools
Level ruler
4.9 Height and width of handle
4.9.1 Inspection method
Use a vernier caliper to measure the actual height and width of the handle. 4.9. 2 Testing equipment
Caliper:
4.10 Tolerance of shape and position of handle groove
4.10.1 Testing method
Caliper: Alignment of the handle center:
Under the premise of the size grid, use the depth gauge to measure the distance between the two sides of the base to the point size of the two sides. The value of the product is the absolute value of the difference between the two values, see Figure 7-1
The verticality of the virtual center line A of the handle is: JB/T 10231.1920D2
Convert the vertical position tolerance into angle value, and use the square angle ruler to measure the actual position of the free angle:
Use the vernier caliper to measure the four values ​​of A: A V surface: in the e-G, b-section, 1Lala, LAw, LA2: 2o The difference between the maximum and minimum values ​​of the four values ​​is: Figure ?-2. Model standard
Figure 7-1
4.10.2 Testing equipment
Vernier caliper, universal angle ruler.
4.11 Rake angle
4.11.1 Testing method
Figure 7-2
The front angle of the control gear and the precision cut nut with the same center size can be directly dug with a square angle ruler Read the actual angle value. The cutting process is affected by the disc, and the test results need to be adjusted. There are many measurement methods. When measuring, the base scale and the tooth quality are usually adjusted. The vernier is adjusted. The tip of the ruler must be in contact with the cutting tooth without a gap. Read the actual angle value of the dial:
The effective dial can be adjusted. That is, the tooth lift is calculated according to the following formula: A=
-tooth lift of the adjacent tooth:
Actual measured value before measurement + tooth lift angle
JBr10231.19—2002
Note: The original scale width is m, and the standard is high. It is changed to m~m4.11.2 inspection instrument
Universal angle.
4,12 Back angle
4.12.1. Detection method
To detect the back angle of precision cut teeth with the same size as the standard, you can use a universal angle ruler to measure directly and obtain the actual back angle value. When measuring the back angle of the cutting tooth, you should pay attention to the influence of the height of the tooth pitch, and the measurement result needs to be adjusted. The positive and negative signs of the adjustment value are related to the direction of the standard cutter and the universal angle ruler,
see the figure, the angle ruler and the universal angle ruler can be closely connected, and the vernier is adjusted so that the flat end of the universal angle ruler is consistent with the back angle of the cutting tooth. Read the scale value on the dial. Figure 9
The correction value of the tooth pitch is obtained by the following formula: tani=/p
The pitch of the adjacent teeth
tooth pitch.
JR/T 10231.19-2002
Actual back angle α=value - tooth lead angle
Note: For the purpose of measuring the distance, the width of the vertical end of the tool 11 is changed to U.3mm--Srmil2 before the inspection instrument can be used.
4.13 Dimensions
4.13.1 Inspection method
Use the equal column light extraction method to identify the plate,
4.13.2 Inspection equipment
Capacity for cutting edges,
4.14 Material and hardness
The inspection of materials and hardness shall comply with the provisions of Chapter 11 of 10231.121. The inspection of marking and packaging shall comply with the provisions of Chapter 13 and 14 of 10231.1--200. 6
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.