CN201087832Y - Clamper for fine material tension test - Google Patents
Clamper for fine material tension test Download PDFInfo
- Publication number
- CN201087832Y CN201087832Y CNU2007201097705U CN200720109770U CN201087832Y CN 201087832 Y CN201087832 Y CN 201087832Y CN U2007201097705 U CNU2007201097705 U CN U2007201097705U CN 200720109770 U CN200720109770 U CN 200720109770U CN 201087832 Y CN201087832 Y CN 201087832Y
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- CN
- China
- Prior art keywords
- ratchet
- seaming chuck
- matrix
- pressure head
- fine material
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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 a clamp used for tension test for tenuousness materials, which comprises a lower pressure head arranged on a basal body, an upper pressure head which is meshed with the lower pressure head. The upper pressure head is connected with a transmission mechanism. The transmission mechanism of the upper pressure head comprises a rotary cylinder which is arranged on the basal body. The rotary cylinder is connected with a small shaft which is axially arranged in the basal body. An upper catch cam is fixedly connected with the rotary cylinder, a lower catch cam is tightly pushed on the upper catch cam by a spring, and a key of the lower catch cam is arranged in an axial slide groove of the small shaft. The small shaft is connected with a sleeve shaft by screw threads, and the sleeve shaft can be axial slidingling connected with the basal body. The upper pressure head is fixedly connected with the sleeve shaft, and the precession direction of the screw threads is consistent with friction transmission direction of a catch cam transmission pair. The utility model has the beneficial effects of simple and reasonable structure, small amount of components, enough protection to the tenuousness materials from pinchoff, easy clamping to samples and adjustable clamping force.
Description
(1) technical field
The utility model relates to employed anchor clamps in the measuring technique, relates in particular to a kind of anchor clamps that are used for the fine material tension test.
(2) technical background
Microelectronic chip has been widely used in fields such as national defence, medical treatment, Aero-Space, automobile, nowadays people no longer are satisfied with the realization of some systemic-function, but pay close attention to problems such as the stability of the optimal design of microelectronic chip and work thereof and reliability more.During the microelectronic chip encapsulation, the main method that realizes the electrical interconnection of chip is a wire bond, have every year to surpass 4,000,000,000,000 wire bond solder joint generation, this has just proposed new requirement to the mechanical property detection of silk thread materials such as the used Au of microelectronic chip electrical interconnection, Ag, Al, Cu with failure mechanism.At present when measuring the tensile mechanical properties of silk thread sample, the silk thread tensile test fixture that domestic and international testing machine factory provides adopts wound form usually, as shown in Figure 1, this anchor clamps are applicable to the silk thread of big (general diameter is greater than 1mm) of diameter, but because the used Au of microelectronic chip electrical interconnection, Ag, Al, the specimen size of silk threads such as Cu little (general diameter is 10～100 2m), (Breaking load is generally 0.1～10N) in fracture easily, traditional stretching clamp can not satisfy its requirement, therefore presses for and designs the silk thread tensile test fixture that can satisfy above-mentioned requirements.
(3) summary of the invention
In order to solve being unsuitable for minute diameter, the easy deficiency tested of disrumpent feelings silk thread sample of existing tensile test fixture, the utility model provides a kind of and has been suitable for minute diameter, the easy disrumpent feelings silk thread sample anchor clamps that carry out tension test.
The utility model adopts following technical scheme:
A kind of anchor clamps that are used for the fine material tension test comprise the push-down head that is arranged on the matrix, seaming chuck and push-down head engagement, and described seaming chuck connects a gear train; Described seaming chuck gear train comprises: be installed in the tube that revolves on the matrix, the described tube that revolves connects an axial arranged little axle that is arranged on matrix inside, last ratchet with revolve the tube affixed, following ratchet is pushed against on last ratchet by spring, the key of following ratchet is arranged in the axial slide of little axle, described little axle and sleeve are by being threaded, described sleeve can be connected axially slidably with matrix, described seaming chuck and sleeve are affixed, and the precession direction of described screw thread is consistent with the friction force transmission direction of described ratchet transmission.
Further, described little axle is provided with the shaft shoulder, and the shaft shoulder cooperates with briquetting on the matrix.
Further, described push-down head region of engagement is a fluted column shape, and described seaming chuck region of engagement is the dome cylindricality, described seaming chuck region of engagement surface coverage one rubber layer.
Principle of work of the present utility model is: when carrying out the tension test of fine material, the fine material sample is placed the fluted column shape region of engagement of push-down head, be rotated in the forward and revolve tube, revolving the last ratchet of tube drive just changes, last ratchet drives ratchet rotation down by friction force, and following ratchet rotates by the little axle of effect drive of key, and little sleeve that promotes to be threaded with it of rotation moves downward, make seaming chuck and push-down head mesh, thereby clamp the fine material sample.Revolve tube and continue to be rotated in the forward, when causing the fine material holding force to reach certain certain value, its resistance makes that going up ratchet skids with following ratchet, thereby the sample that has guaranteed fine material is unlikely destroyed.After experiment finishes, tube is revolved in reverse rotation, revolve tube and drive upward ratchet counter-rotating, the direct engagement of the claw by last ratchet and the claw of following ratchet, drive ratchet counter-rotating down, little axle is backward rotation thereupon also, and the sleeve that the little axle pulling of rotation is threaded with it moves upward, thereby seaming chuck and push-down head disengaging are come.
The beneficial effects of the utility model are: simple and reasonable, number of spare parts is few, the very thin test that can adequately protect not by pinch off, the sample clamping is easy, holding force is adjustable.
(4) description of drawings
Fig. 1 is the structural representation of existing wound form silk thread tensile test fixture.
Fig. 2 is a synoptic diagram of the present utility model.
Fig. 3 is that the A-A of Fig. 2 is to cut-open view.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to accompanying drawing: a kind of anchor clamps that are used for the fine material tension test, comprise the push-down head 2 that is arranged on the matrix 1, seaming chuck 3 connects a gear train with push-down head 2 engagements, described seaming chuck 3; Described seaming chuck gear train comprises: be installed on the matrix 1 revolve the tube 4, the described tube 4 that revolves connects an axial arranged little axle 5 that is arranged on matrix 1 inside, last ratchet 6 is with to revolve tube 4 affixed, following ratchet 7 is pushed against on last ratchet 6 by spring 8, the key of following ratchet 7 is arranged in the axial slide of little axle 5, described little axle 5 and sleeve 9 are by being threaded, described sleeve 8 can be connected axially slidably with matrix 1, described seaming chuck 3 is affixed with sleeve 9, and the precession direction of described screw thread is consistent with the friction force transmission direction of described ratchet transmission.
Described little axle 5 is provided with the shaft shoulder 10, and the shaft shoulder 10 cooperates with briquetting 11 on the matrix 1.
Described push-down head 2 region of engagements are fluted column shape, and described seaming chuck 3 region of engagements are the dome cylindricality, described seaming chuck 3 region of engagement surface coverage one rubber layer.
Principle of work of the present utility model is: when carrying out the tension test of fine material, the fine material sample is placed the fluted column shape region of engagement of push-down head 2, be rotated in the forward and revolve tube 4, revolving the last ratchet 6 of tube 4 drives is just changeing, last ratchet 6 drives ratchet 7 rotations down by friction force, and following ratchet 7 rotates by the little axle 5 of the effect drive of key, and little 5 sleeve 8 that promotes to be threaded with it of rotation moves downward, make seaming chuck 3 and push-down head 2 mesh, thereby clamp the fine material sample.Revolve tube 4 and continue to be rotated in the forward, when causing the fine material holding force to reach certain certain value, its resistance makes that going up ratchet 6 skids with following ratchet 7, thereby the sample that has guaranteed fine material is unlikely destroyed.After experiment finishes, tube 4 is revolved in reverse rotation, revolve tube 4 and drive upward ratchet 6 counter-rotatings, the direct engagement of the claw by last ratchet 6 and the claw of following ratchet 7, drive ratchet 7 counter-rotatings down, little axle 5 is backward rotation thereupon also, and the sleeve 9 that little axle 5 pullings of rotation are threaded with it moves upward, thereby seaming chuck 3 and push-down head 2 disengagings are come.
Claims (3)
1. anchor clamps that are used for the fine material tension test is characterized in that: comprise the push-down head that is arranged on the matrix, and seaming chuck and push-down head engagement, described seaming chuck connects a gear train; Described seaming chuck gear train comprises: be installed in the tube that revolves on the matrix, the described tube that revolves connects an axial arranged little axle that is arranged on matrix inside, last ratchet with revolve the tube affixed, following ratchet is pushed against on last ratchet by spring, the key of following ratchet is arranged in the axial slide of little axle, described little axle and sleeve are by being threaded, described sleeve can be connected axially slidably with matrix, described seaming chuck and sleeve are affixed, and the precession direction of described screw thread is consistent with the friction force transmission direction of described ratchet transmission.
2. a kind of anchor clamps that are used for the fine material tension test as claimed in claim 1 is characterized in that: described little axle is provided with the shaft shoulder, and the shaft shoulder cooperates with briquetting on the matrix.
3. a kind of anchor clamps that are used for the fine material tension test as claimed in claim 1 or 2 is characterized in that: described push-down head region of engagement is a fluted column shape, and described seaming chuck region of engagement is the dome cylindricality, described seaming chuck region of engagement surface coverage one rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201097705U CN201087832Y (en) | 2007-05-25 | 2007-05-25 | Clamper for fine material tension test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201097705U CN201087832Y (en) | 2007-05-25 | 2007-05-25 | Clamper for fine material tension test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087832Y true CN201087832Y (en) | 2008-07-16 |
Family
ID=39635422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201097705U Expired - Lifetime CN201087832Y (en) | 2007-05-25 | 2007-05-25 | Clamper for fine material tension test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087832Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201302B (en) * | 2007-05-25 | 2010-08-11 | 浙江工业大学 | Clipper for fine material tensile test |
| CN101482467B (en) * | 2009-02-04 | 2011-03-30 | 三峡大学 | Specimen pre-loading multifunctional clamper group |
-
2007
- 2007-05-25 CN CNU2007201097705U patent/CN201087832Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201302B (en) * | 2007-05-25 | 2010-08-11 | 浙江工业大学 | Clipper for fine material tensile test |
| CN101482467B (en) * | 2009-02-04 | 2011-03-30 | 三峡大学 | Specimen pre-loading multifunctional clamper group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080716 Effective date of abandoning: 20070525 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080716 Effective date of abandoning: 20070525 |