This part of GB/T 4346 specifies the geometric accuracy test of manual self-centering chucks for machine tools. This part is applicable to three-jaw chucks with coiled wire, and other coiled wire chucks can also be used as a reference. GB/T 4346.2-2002 Manual self-centering chucks for machine tools Part 2: Acceptance test specification (geometric accuracy test) GB/T4346.2-2002 Standard download decompression password: www.bzxz.net

IS 25.060. 20
National Standard of the People's Republic of China
B/T4346.2—2002
Manually-centring chucks for machine tools
Part 2: Acceptance: test specifications (geometrical lests) (IS0) 3089:1991, Self-centring manually-operated chucks for machine tools Acceptance test sperifications(Heometricaltests),MOD)
20020913 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
2003-04-01 Implementation
"BT434 Machine tools for dynamic self-centering chucks are two parts - Part 1: Parameters and technical requirements
- Part 2, Acceptance test specifications (geometrical accuracy inspection). GA/T 4346.2—2002
This part is the second part of GBT4346, which is in accordance with ISO30899 machine tool dynamic self-centering chuck initial modification test assembly specification and several questions about accuracy inspection>311 year English version 1: The consistency degree of this part with 3189 is as follows: only ~3 specifications are selected
···Promote the use of metric dimensions,
This part is proposed by the China Machinery Industry Federation. All parts in this part will belong to the pre-cut machine tool standard implementation Chemical Technology Committee Finance: This part was drafted by: Huhezhite Machine Tool Accessories General Factory, Taizhou Huanyuan Machine Tool Accessories Factory, Wuguozhuhua Machine Tool Factory, Xiangtai First Machine Tool Accessories Factory, Dongyang Machine Tool Accessories Factory, Ronggongchuan Wafangdian Machine Tool Parts Factory and Tiandan City Machine Tool Accessories Factory: This part mainly started by people in the middle, Chaoyuan Liu Tieyi Zhengshui Gu, Shima, Zou Runping. Chuangjinshi, Yushan Shun. Banyinshi, Fan YongWww.bzxZ.net
Manual self-centering chuck for machine tools
Part 2: Acceptance test specification Geometric accuracy inspection! CD/T 4346.2—2002
The turning part of CB/工4346 specifies the inspection of the manual self-centering plate (hereinafter referred to as the lower plate) of machine tools. The card part is applicable to the two-plate type and the one-plate type, and the other types are referenced by the constant use 2 Normative references
The following documents are generally applicable (the references of this part of B/工446 become the terms of this part, and all subsequent amendments: excluding internal consultation) or revisions of the documents with a specified date are not applicable to this part. For the purpose of research, the latest versions of these documents can be used. For documents not marked with a month, the latest version is applicable to the following parts:
1117121.1-199% Machine Tool Inspection General Rules Part 1, the geometric changes of the machine tool under light load or precision machining conditions (40230-5
Pre-adjustment inspection
All geometric precision inspection parts are carried out in the following motion, the chuck must be installed in the three-beat space of the test axis or through the upper and lower plates to grab the reverse bottom of the test axis in advance to avoid the size and speed of the pull-to-motion and end face runout: thinking table: table
inspection and supervision party research
etc. The disk is collected at the end of the test axis. The chuck is installed on the old auxiliary part of the operation of the repair work
fill the difference /mTa
through the outer diameter of the disk
full blood end jump series
more (17a1. 1--98
Related text
5. 6. 1. 3.1.6. 6. 1. 2. 2 The end of the display is the measuring table
1 0. 0055. e. 3
CB/T 4346.22002
4 Geometric precision plate inspection
4.1 Ten plate outer diameter dynamic test see Figure 1 and Table 2
4.21 Plate end face runout test see Figure 1 and Table 2. Note: When testing 4.2: The point diameter of the product side display as large as possible is shown in Figure 1
1. Page and 4, * test
F pot point diameter
150250
250-400
400-D630
4.3 Fire tightness test fat radial dynamic test see Figure 2 and Table 3. Yuan
Unit is meter
GB/T 4346.2—2D02
Note 1: The number of test pieces used for the inspection of the chuck is four, each with a different diameter. For the lower Ⅱ cut plate, the test piece is used for retrograde inspection. Note 3: The diameter of the test piece used for the inspection should be smaller than the distance between the plate and the test piece. The angle value should be 1G", and the diameter of the test piece should be different to make the plate 90° long after the test. Note. During the inspection, each test piece should be re-tested within three times. The test results should meet the requirements. Note 4: To ensure the maximum qualitative inspection of the sample, the test value should meet the requirements. The cooking process should be light in the inner hole of the chuck. When the lower claw is tightened, the center line distribution of the change point is not distributed. The increase in the effectiveness and width of the contact point will lose the centering accuracy. It is difficult to carry out the inspection. Note: The inspection should be carried out according to the material and heat treatment. No large surface or internal deformation will be produced during the stretching process. Let 7, the inspection should be carried out according to the A3 part of GB/T17421.1696 or the relevant consumption determination. The agent should be approximately equal to the total amount of light added by the person at night. 57%. Note!: The flat gear gauge is the heart of the world snake. Figure 2
Upper disk point diameter D
[61]: s21:
Extension data card industry high joint surface ratio!
4.4 Type chucks need to be inspected for slight lateral runout, see test 3 and Table 4: 4.5 Clamp inspection ring end and late movement inspection, see Figure and Table 1 Level
Unit is slow request
GB/T 4346.2-2002
Community: Not every chuck needs to be inspected, and each chuck arc needs to be inspected with a separate control ring. The outer diameter of the inspection ring should be smaller than the arc diameter of the chuck. 2: When checking the face, only one gear clamp is required for the lower plate. For version 1 chuck, the hand position gear ratio 3 inspection ring must comply with the relevant provisions of the appendix to 13/717421.1-1095. When inspecting the normal surface, the indicator should be as close to the outer diameter of the inspection ring as possible. ：Figure 3
Inspection items
Upper diameter E
160D250
250cD400
400cD630
Dxs15c
.60-4s.250
250-0400
40012.630
4.6 Sample inspection Ring internal dynamic inspection see Figure 4 and Table 5. 4.? Recommended dynamic inspection of the end face of the ring see Figure 4 5T short
3, 225
Unit is meter
n, nts
GB/T 4346, 2—2002
City 1: Each unit needs to be inspected. When testing, there are two sets of test rings. The inner diameter of the test ring should be larger than the inner diameter of the test ring. 2: When testing, only one gear is used. For 1 chuck, the zero position gear should be used. Note 3: The test adjustment should be in accordance with the relevant provisions of [iH/T174%1.1-1N version A. When testing, the probe should be as close to the test ring as possible. Figure 4
Gr. An
F disk vertical diameter D
18G-:5n
250--D:400
4nn-30
263 D:4
Single industry is based on
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