CN202119685U - Nail for destructive test of projection welding nut - Google Patents
Nail for destructive test of projection welding nut Download PDFInfo
- Publication number
- CN202119685U CN202119685U CN2011201771696U CN201120177169U CN202119685U CN 202119685 U CN202119685 U CN 202119685U CN 2011201771696 U CN2011201771696 U CN 2011201771696U CN 201120177169 U CN201120177169 U CN 201120177169U CN 202119685 U CN202119685 U CN 202119685U
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- China
- Prior art keywords
- destructive test
- nail
- welding nut
- project
- nut
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the technical field of machinery, in particular to a nail for a destructive test of a projection welding nut, which comprises a nail body and a handle. Compared with the prior art, the bottom end of the nail body adopts cone positioning design, the nail for the destructive test of the projection welding nut is simple in structure and low in manufacturing cost, avoids the situation that the test can not be continued because threads are damaged in the destructive test, and enables a nut without threads to be capable of conducting the destructive test, thereby improving efficiency of the destructive test and reducing cost of the destructive test.
Description
Technical field
The utility model relates to field of mechanical technique, and specifically a kind of project-welding nut destructive test is with nail.
Background technology
At present, in check project-welding nut weld strength process, often carry out destructive test: use bolt to screw in nut, knock bolt with hammer, through checking that mother metal is torn and the nut obscission zone confirms whether weld strength is up to standard.
There is following problem in such destructive test: first; Because the weld strength of auto parts and components project-welding nut requires to be higher than nut and protects the power of carrying; Frequent generation mother metal is not torn as yet and nut does not come off yet; But screw thread has been destroyed can't be stressed again, and the welded nut of having to is again done destructive test again, has increased the consumption of associated materials thus.The second, because nut tap does not have screw thread, can't be screwed into bolt and do destructive test.
Therefore, designing a kind of project-welding nut destructive test is vital with nail to address the above problem.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes prior art, provides a kind of and can in no screw nut, use and can avoid using nail because of screw thread is damaged the project-welding nut destructive test that can't continue to test.
In order to achieve the above object, the utility model comprises nail and handle, it is characterized in that: the middle part of nail is provided with slotted eye, and an end of handle is fixed in this slotted eye.
The bottom of described nail is cone.
The utility model is compared with prior art; Place, the location design of cone is adopted in the nail bottom; Simple in structure, manufacturing expense is low; Make in the destructive test to be avoided, make no screw nut can carry out destructive test because of screw thread is damaged the situation that can't continue to test, thus improved destructive test efficient, reduced the cost of destructive test.
Description of drawings
Fig. 1 is the prior art constructions synoptic diagram.
Fig. 2 is the structural representation of the utility model.
Fig. 3 carries out the synoptic diagram of project-welding nut destructive test for the utility model.
Fig. 4 carries out the synoptic diagram of self tapping project-welding nut destructive test for the utility model.
Referring to Fig. 2, Fig. 3 and Fig. 4,1 is stress surface; 2 are the place, location; 3 is nail; 4 is handle; 5 is mother metal; 6 is project-welding nut; 7 is the self tapping project-welding nut.
Embodiment
Combine accompanying drawing that the utility model is done further describes at present.
Referring to Fig. 2, the utility model comprises nail and handle.The middle part of nail 3 is provided with slotted eye, and an end of handle 4 is fixed in this slotted eye.The top of nail 3 is a stress surface 1, and it is location place 2 that the bottom of nail 3 is cone, and the effect of cone is: concentrate on the stress point in testing on the nut rather than on the mother metal, thereby reach testing requirements to the nut application of force; Cone has tapering, makes the utility model be applicable to the project-welding nut of plurality of specifications, comprises threadless self tapping project-welding nut.
Referring to Fig. 3, the utility model is when carrying out the project-welding nut destructive test, and testing crew is put into sleeve to mother metal 5 and project-welding nut 6 earlier, puts into project-welding nut 6 to place, location 2 again.Then, the hand-held handle 4 of testing crew one, another hand-held hammer knocks until tearing mother metal 5 stress surface 1, tears and project-welding nut 6 does not come off like mother metal 5, then reaches the requirement of project-welding nut failure test; Tear and project-welding nut 6 comes off like mother metal 5, then do not reach the requirement of project-welding nut failure test.So far, the utility model carries out project-welding nut destructive test end.
Referring to Fig. 4, the utility model is when carrying out the destructive test of self tapping project-welding nut, and testing crew is put into sleeve to mother metal 5 and self tapping project-welding nut 7 earlier, puts into self tapping project-welding nut 7 to place, location 2 again.Then, the hand-held handle 4 of testing crew one, another hand-held hammer knocks until tearing mother metal 5 stress surface 1, tears and self tapping project-welding nut 7 does not come off like mother metal 5, then reaches the requirement of project-welding nut failure test; Tear and self tapping project-welding nut 7 comes off like mother metal 5, then do not reach the requirement of project-welding nut failure test.So far, the utility model carries out self tapping project-welding nut destructive test end.
The utility model is simple in structure, manufacturing expense is low; Make in the destructive test and be avoided because of screw thread is damaged the situation that can't continue to test; Make no screw nut can carry out destructive test, thus improved destructive test efficient, reduced the cost of destructive test.
Claims (2)
1. a project-welding nut destructive test comprises nail and handle with nail, and it is characterized in that: the middle part of nail (3) is provided with slotted eye, and an end of handle (4) is fixed in this slotted eye.
2. a kind of project-welding nut failure test according to claim 1 is with nail, and it is characterized in that: the bottom of described nail (3) is cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201771696U CN202119685U (en) | 2011-05-30 | 2011-05-30 | Nail for destructive test of projection welding nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201771696U CN202119685U (en) | 2011-05-30 | 2011-05-30 | Nail for destructive test of projection welding nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119685U true CN202119685U (en) | 2012-01-18 |
Family
ID=45460740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201771696U Expired - Lifetime CN202119685U (en) | 2011-05-30 | 2011-05-30 | Nail for destructive test of projection welding nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494947A (en) * | 2011-11-28 | 2012-06-13 | 芜湖市中兴机械技术开发有限公司 | Welding strength test unit of projection welded threaded part and test method thereof |
| CN107728229A (en) * | 2017-11-28 | 2018-02-23 | 浙江捷汽车零部件有限公司 | Project-welding nut automatic detection system and control method |
-
2011
- 2011-05-30 CN CN2011201771696U patent/CN202119685U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494947A (en) * | 2011-11-28 | 2012-06-13 | 芜湖市中兴机械技术开发有限公司 | Welding strength test unit of projection welded threaded part and test method thereof |
| CN107728229A (en) * | 2017-11-28 | 2018-02-23 | 浙江捷汽车零部件有限公司 | Project-welding nut automatic detection system and control method |
| CN107728229B (en) * | 2017-11-28 | 2024-03-22 | 惠易新能源科技(宁波)有限公司 | Projection welding nut automatic detection equipment and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |