CN204255246U - Commutator brush track diameter and hook length detect fixture - Google Patents
Commutator brush track diameter and hook length detect fixture Download PDFInfo
- Publication number
- CN204255246U CN204255246U CN201420781030.6U CN201420781030U CN204255246U CN 204255246 U CN204255246 U CN 204255246U CN 201420781030 U CN201420781030 U CN 201420781030U CN 204255246 U CN204255246 U CN 204255246U
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- detection block
- commutator
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Abstract
Commutator brush track diameter disclosed in the utility model and hook length detect fixture, it is characterized in that: be made up of dull and stereotyped four detection blocks with being fixed at dull and stereotyped upper surface, four are detected block and lay with rectangular corner form, two height are that the detection block of h is arranged on the left side of flat board, two height are that the detection block of H is arranged on the right of flat board, the size of H is greater than the size of h, spacing between left front detection block and right front detection block is B, spacing between left back detection block and right back detection block is b, the size of B is greater than the size of b, it is highly the recessed design of right hand top of the detection block of h, it is highly the recessed design of left side top of the detection block of H.The structure of above-mentioned detection fixture is very simple, and the detection that namely can be used for commutator brush track diameter also can be used for the detection of commutator crotch length, detects easy to operate efficiency high.
Description
Technical field
The utility model relates to a kind of detection fixture, is specifically related to a kind of detection fixture detected for commutator brush track diameter and hook length.
Background technology
Commutator is mainly applied in electric tool.Commutator divides hook, grooved and face type three kinds, and wherein Hooked reverser is because copper bar top is provided with crotch and gains the name.For crotch commutator, its Testing index comprises excircle dimension and hook length size, the outside diameter of excircle dimension and commutator, the length dimension of the crotch of hook length size and commutator, reaches testing goal indirectly mainly through the height detecting crotch minimum point.Current excircle dimension is detected and is measured by vernier caliper, and hook length size detection is measured by height gauge, complex operation, and efficiency is low, loses time in a large number.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of this utility model is that to be to provide a kind of structure simple, namely the detection that can be used for commutator brush track diameter also can be used for the detection of commutator crotch length, detects the high commutator brush track diameter of easy to operate efficiency and hook length detection fixture.
The utility model is implemented by the following technical programs:
Commutator brush track diameter and hook length detect fixture, it is characterized in that: be made up of dull and stereotyped four detection blocks with being fixed at dull and stereotyped upper surface, four are detected block and lay with rectangular corner form, two height are that the detection block of h is arranged on the left side of flat board, two height are that the detection block of H is arranged on the right of flat board, the size of H is greater than the size of h, spacing between left front detection block and right front detection block is B, spacing between left back detection block and right back detection block is b, the size of B is greater than the size of b, it is highly the recessed design of right hand top of the detection block of h, it is highly the recessed design of left side top of the detection block of H.
The part that described detection block exposes dull and stereotyped upper surface is rectangular shape.
After adopting technique scheme, when detecting commutator excircle dimension, the crotch of commutator is put into dull and stereotyped front side upward, now the lower surface of commutator can against dull and stereotyped upper surface, then push commutator to pass through between left front detection block and right front detection block by commutator, excessive not defective by excircle dimension is described, by after allow commutator pass through between left back detection block and right back detection block again, not by illustrating that excircle dimension is qualified, too small defective by excircle dimension is described, detect easy to operate efficiency high; When detecting commutator hook length size, the crotch of commutator is put into dull and stereotyped left side upward, now the lower surface of commutator can against dull and stereotyped upper surface, then push commutator to pass through between left front detection block and left back detection block by commutator, too low not defective by crotch height is described, by after allow commutator pass through between right front detection block and right back detection block again, not by crotch height qualified (also just illustrating that hook length is qualified) is described, defective by crotch excessive height is described, detect easy to operate efficiency high.The recessed design in top detecting block allows the crotch of commutator can not encounter detection block to ensure when cylindrical dimensional measurement, avoids occurring detecting mistake.
Accompanying drawing explanation
The utility model has following accompanying drawing:
Fig. 1 be detect fixture overlook directional diagram,
Fig. 2 is the left view of Fig. 1,
Fig. 3 is the upward view of Fig. 1.
Embodiment
As shown in the figure, commutator brush track diameter of the present utility model and hook length detect fixture, blocks (detection blocks 2 are detected by dull and stereotyped 1 and four that are fixed at dull and stereotyped 1 upper surface, detect block 3, detect block 4, detect block 5) composition, four are detected block and lay with rectangular corner form, two height are the detection block 2 of h and detect block 4 in the setting of the left side of flat board 1, two height are the detection block 3 of H and detect block 5 in the right of flat board 1 setting, the size of H is greater than the size of h, spacing between left front detection block 2 and right front detection block 3 is B, spacing between left back detection block 4 and right back detection block 5 is b, the size of B is greater than the size of b, be highly the detection block 2 of h and the recessed design of right hand top 6 of detection block 4, be highly the detection block 3 of H and the recessed design of left side top 7 of detection block 5, the part that described detection block exposes dull and stereotyped 1 upper surface is rectangular shape.
Above-mentioned detection fixture, when detecting commutator excircle dimension, the crotch of commutator is put into the front side of dull and stereotyped 1 upward, now the lower surface of commutator can against the upper surface of dull and stereotyped 1, then push commutator to pass through between left front detection block 2 and right front detection block 3 by commutator, excessive not defective by excircle dimension is described, by after allow commutator pass through between left back detection block 4 and right back detection block 5 again, not by illustrating that excircle dimension is qualified, too small defective by excircle dimension is described, detect easy to operate efficiency high, when detecting commutator hook length size, the crotch of commutator is put into the left side of dull and stereotyped 1 upward, now the lower surface of commutator can against the upper surface of dull and stereotyped 1, then push commutator to pass through between left front detection block 2 and left back detection block 4 by commutator, too low not defective by crotch height is described, by after allow commutator pass through between right front detection block 3 and right back detection block 5 again, not by crotch height qualified (also just illustrating that hook length is qualified) is described, it is defective by crotch excessive height is described, detect easy to operate efficiency high.The recessed design in top detecting block allows the crotch of commutator can not encounter detection block to ensure when cylindrical dimensional measurement, avoids occurring detecting mistake.
Claims (2)
1. commutator brush track diameter and hook length detect fixture, it is characterized in that: be made up of dull and stereotyped four detection blocks with being fixed at dull and stereotyped upper surface, four are detected block and lay with rectangular corner form, two height are that the detection block of h is arranged on the left side of flat board, two height are that the detection block of H is arranged on the right of flat board, the size of H is greater than the size of h, spacing between left front detection block and right front detection block is B, spacing between left back detection block and right back detection block is b, the size of B is greater than the size of b, it is highly the recessed design of right hand top of the detection block of h, it is highly the recessed design of left side top of the detection block of H.
2. commutator brush track diameter according to claim 1 and hook length detect fixture, it is characterized in that: the part that described detection block exposes dull and stereotyped upper surface is rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781030.6U CN204255246U (en) | 2014-12-12 | 2014-12-12 | Commutator brush track diameter and hook length detect fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781030.6U CN204255246U (en) | 2014-12-12 | 2014-12-12 | Commutator brush track diameter and hook length detect fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255246U true CN204255246U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781030.6U Expired - Fee Related CN204255246U (en) | 2014-12-12 | 2014-12-12 | Commutator brush track diameter and hook length detect fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204255246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322931A (en) * | 2020-03-06 | 2020-06-23 | 中国二十二冶集团有限公司 | Method for checking and controlling length of straight section of blanking hook of construction engineering reinforcing steel bar |
-
2014
- 2014-12-12 CN CN201420781030.6U patent/CN204255246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322931A (en) * | 2020-03-06 | 2020-06-23 | 中国二十二冶集团有限公司 | Method for checking and controlling length of straight section of blanking hook of construction engineering reinforcing steel bar |
| CN111322931B (en) * | 2020-03-06 | 2022-03-01 | 中国二十二冶集团有限公司 | Method for checking and controlling length of straight section of blanking hook of construction engineering reinforcing steel bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161212 |