CN201503372U - Clamp of stretching tester - Google Patents
Clamp of stretching tester Download PDFInfo
- Publication number
- CN201503372U CN201503372U CN2009202238536U CN200920223853U CN201503372U CN 201503372 U CN201503372 U CN 201503372U CN 2009202238536 U CN2009202238536 U CN 2009202238536U CN 200920223853 U CN200920223853 U CN 200920223853U CN 201503372 U CN201503372 U CN 201503372U
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- CN
- China
- Prior art keywords
- test
- clamp
- contact surface
- jig
- stretching
- Prior art date
- 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 - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a clamp of a stretching tester belonging to the filed of measuring tools, which comprises two fixture bodies, wherein step holes are arranged on the fixture bodies. The step holes are arranged on the fixture bodies, a contact surface matched with the step surfaces of the step holes is arranged on a tested piece, and the step surfaces and the contact surface of the tested piece contact to stress. In the prior art, friction force between the tested piece and the clamp is used for carrying out pulling force test, and while the clamp of a stretching tester uses an axial pressure between the step surfaces and the contact surface to carry out the pulling force test, which avoids a skidding phenomenon generated when in test. The test data has high accuracy, the clamp of a stretching tester is suitable to test material with high strength and hardness, and the use life of a stretching machine and a fixture.
Description
Technical field
The utility model relates to a kind of measurement instrument, is specifically related to a kind of tension test instrument.
Background technology
Metal material especially iron and steel is widely used in the every field of Aeronautics and Astronautics, the energy, chemical industry, communications and transportation, mining machinery, and this just requires it to have good mechanical property.The tensile strength of material, length growth rate, these mechanical property of elastic modulus need be measured by cupping machine, and wherein jig is one of critical component on the cupping machine.In process of the test, the two ends of tested sample are fixed on the anchor clamps, and anchor clamps are fixedlyed connected with cupping machine, and testing machine is by the anchor clamps tensile sample, finally obtain the mechanical properties such as pulling strengrth, elastic modulus, extensibility of sample.The shape of tested sample meets GB or ASTM standard usually, is that " 200310121213.1 ", name are called as described in the utility model patent of " a kind of tensile test fixture " as application number.
The jig surface of using on cupping machine at present is plane and has tooth, and this chuck generally uses on the straight carbon steel test specimen.In test during high-intensity test specimen, test specimen can take place be subjected to skidding after the load, the perhaps phenomenon of test specimen generation vertical shift makes research or produces the test specimen data and can't test; Sometimes the situation of test specimen in edge's fracture also can take place in the glass hard steel test specimen in the tension test process, causes the inaccurate of test specimen test data.
The utility model content
It is inaccurate that the technical problems to be solved in the utility model tension test machine clamp is measured the high strength test specimen, and a kind of tensile test fixture that can accurately measure the high strength test specimen is provided.
The technical solution of the utility model realizes with following method:
A kind of tension tester jig comprises two jig main bodys, and the jig main body is provided with stepped hole.
The step surface of described stepped hole is a circular face.
The step surface of described stepped hole is a facing.
The utility model is provided with stepped hole on the jig main body, have a surface of contact that cooperates with the step surface of stepped hole on the test specimen, and this step surface contacts stressed with the surface of contact of test specimen.Prior art is to utilize the friction force between test specimen and the jig to carry out tensile test, the utility model then utilizes is that axle pressure between step surface and the surface of contact is carried out tensile test, avoided the skidding of generation when test, experimental data accuracy height, be applicable to test intensity and the higher material of hardness, prolonged the serviceable life of puller system and jig.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic;
Fig. 3 is the utility model user mode synoptic diagram.
Embodiment
As shown in Figure 1 and Figure 2, the utility model comprises two jig main bodys 1, and jig main body 1 is provided with stepped hole 2.Described stepped hole 2 is made up of a counter sink and a through hole.The step surface of described stepped hole 2 is a circular face.
The step surface of perhaps described stepped hole 2 is the face of facing or other shape.
As shown in Figure 3, the utility model is paired use.Tested exemplar is placed between two jig main bodys 1, jig links to each other with drawing machine, hardness height, the test specimen that intensity is big are packed in the jig stepped hole, the surface of contact of test specimen matches with step surface on the jig, make the original friction force of passing through between tooth and the coupon become axial pressure between two present faces, the change of force way has overcome skidding of the prior art, make coupon be stuck in the jig firmly, increase along with load, coupon therefrom between the fracture, read test figure accurately by the staff.
Claims (3)
1. a tension tester jig comprises two jig main bodys (1), it is characterized in that: jig main body (1) is provided with stepped hole (2).
2. tension tester jig according to claim 1 is characterized in that: the step surface of described stepped hole (2) is a circular face.
3. tension tester jig according to claim 1 is characterized in that: the step surface of described stepped hole (2) is a facing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202238536U CN201503372U (en) | 2009-09-28 | 2009-09-28 | Clamp of stretching tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202238536U CN201503372U (en) | 2009-09-28 | 2009-09-28 | Clamp of stretching tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503372U true CN201503372U (en) | 2010-06-09 |
Family
ID=42454304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202238536U Expired - Fee Related CN201503372U (en) | 2009-09-28 | 2009-09-28 | Clamp of stretching tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909482A (en) * | 2014-03-24 | 2014-07-09 | 上海理工大学 | Shaft-type force magnetic sensor test fixture |
| CN105571941A (en) * | 2014-10-30 | 2016-05-11 | 深圳市信立泰生物医疗工程有限公司 | Mold and method for ring hoop tension tests of small polymer pipes |
| CN109870300A (en) * | 2019-04-04 | 2019-06-11 | 广东电网有限责任公司 | It is a kind of for detecting the test piece and test method of closed fixture |
-
2009
- 2009-09-28 CN CN2009202238536U patent/CN201503372U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909482A (en) * | 2014-03-24 | 2014-07-09 | 上海理工大学 | Shaft-type force magnetic sensor test fixture |
| CN103909482B (en) * | 2014-03-24 | 2016-01-20 | 上海理工大学 | Shaft type power Magnetic Sensor detection clamp |
| CN105571941A (en) * | 2014-10-30 | 2016-05-11 | 深圳市信立泰生物医疗工程有限公司 | Mold and method for ring hoop tension tests of small polymer pipes |
| CN105571941B (en) * | 2014-10-30 | 2023-08-29 | 深圳信立泰医疗器械股份有限公司 | Die for circumferential tensile test of polymer small pipe and test method thereof |
| CN109870300A (en) * | 2019-04-04 | 2019-06-11 | 广东电网有限责任公司 | It is a kind of for detecting the test piece and test method of closed fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120928 |