CN108362556A - 1500MPa or more plate stretch testing machine jaw clamps and application method - Google Patents
1500MPa or more plate stretch testing machine jaw clamps and application method Download PDFInfo
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- CN108362556A CN108362556A CN201810287591.3A CN201810287591A CN108362556A CN 108362556 A CN108362556 A CN 108362556A CN 201810287591 A CN201810287591 A CN 201810287591A CN 108362556 A CN108362556 A CN 108362556A
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of 1500MPa or more plate stretchs testing machine jaw clamp and application methods, belong to metallurgy industry plate stretch technical field of test equipment.Technical solution is：Including upper jaw fixture and lower jaw fixture, the upper jaw fixture includes formpiston jaw clamp block（11）With former jaw clamp block（21）, formpiston jaw clamp block（11）With former jaw clamp block（21）It is respectively equipped on corresponding face and mutually matched boss（12）And groove（22）, formpiston jaw clamp block（11）On boss（12）With former jaw clamp block（21）On groove（22）Upper to be carved with mesh antiskid line respectively, the structure of the lower jaw fixture is identical as the structure of upper jaw fixture.The beneficial effects of the invention are as follows：The requirement that disclosure satisfy that 1500MPa and the experiment of the above plate stretch, sample occurs to take off mouth with jaw clamp during avoiding tension test, ensures being smoothed out for tension test.
Description
Technical field
The present invention relates to a kind of 1500MPa or more plate stretchs testing machine jaw clamp and application methods, belong to metallurgical row
Industry plate stretch technical field of test equipment.
Background technology
With automotive light weight technology technology growth requirement, super-high strength steel product can be very while ensureing vehicle safety performance
The good light-weighted requirement of realization, therefore, automobile sheet material gradually develops to the strong direction of superelevation, by taking hot press-formed steel as an example,
Its tensile strength reaches 1500MPa or more, this proposes higher challenge to its detection device.
Traditional tensile test fixture, which is the lateral chucking power provided by cupping machine, makes cupping machine jaw press from both sides
Tool and sample contacts and the frictional force that generates, to carry out tension test.And for 1500MPa and the above plank, surface is hard
Degree is high, and the tooth on jaw clamp surface is difficult pressing in sample surface, so that occurs to take off lip reflex in drawing process, causes to test
Failure, or even the tooth on jaw clamp surface can be ground off, cause fixture to be scrapped.
Invention content
It is an object of the present invention to provide a kind of 1500MPa or more plate stretchs testing machine jaw clamp and application methods, can
The requirement for meeting 1500MPa and the experiment of the above plate stretch, sample occurs to take off mouth with jaw clamp during avoiding tension test,
Solve the problems, such as background technology.
The technical scheme is that：
A kind of 1500MPa or more plate stretchs testing machine jaw clamp, including upper jaw fixture and lower jaw fixture, the upper pincers
Mouth fixture includes formpiston jaw clamp block and former jaw clamp block, the top of formpiston jaw clamp block and former jaw clamp block
It is respectively equipped with and is pressed from both sides with the matched positioning pin one of cupping machine jaw and positioning pin two, formpiston jaw clamp block and former jaw
Tool block be respectively arranged below with and the matched locating slot one of cupping machine jaw and locating slot two, formpiston jaw clamp block and
Mutually matched boss and groove, the boss on formpiston jaw clamp block are respectively equipped on the corresponding face of former jaw clamp block
Be carved with mesh antiskid line on the groove on former jaw clamp block respectively, structure and the upper jaw fixture of the lower jaw fixture
Structure it is identical.
The matching ends of groove and sheet coupon on the former jaw clamp block.
The top of groove on the former jaw clamp block is the matched rectangle in clamping head with sheet coupon,
The width of the lower part of groove on former jaw clamp block and the width of sheet coupon parallel length part match, former jaw
Transition arc is equipped between the upper and lower part of groove on clamp block.
The formpiston jaw clamp block and former jaw clamp block are wedge block.
A kind of application method of 1500MPa or more plate stretchs testing machine jaw clamp, using 1500MPa defined by upper
And the above plate stretch testing machine jaw clamp, it comprises the steps of：
1. by upper jaw fixture formpiston jaw clamp block and former jaw clamp block be loaded on the upper of cupping machine respectively
On jaw, keep the groove on the boss and former jaw clamp block on formpiston jaw clamp block positioned opposite；
2. by lower jaw fixture formpiston jaw clamp block and former jaw clamp block be loaded under cupping machine respectively
On jaw, make on the former jaw clamp block in the boss and lower jaw fixture on the formpiston jaw clamp block in lower jaw fixture
Groove it is positioned opposite；
3. by the clamping head portion at sheet coupon both ends be respectively placed in groove on the former jaw clamp block in upper jaw fixture and
In the groove on former jaw clamp block in lower jaw fixture；
4. passing through the formpiston jaw clamp block in the boss and lower jaw fixture on the formpiston jaw clamp block in upper jaw fixture
On boss respectively in the groove and lower jaw fixture on the former jaw clamp block in upper jaw fixture former jaw press from both sides
Have the groove cooperation on block, the both ends of sheet coupon are compressed；
5. starting cupping machine, start tension test.
Using the present invention, when stretching, sheet coupon be clamped head by the top of the groove on former jaw clamp block and
The active force at transition arc between lower part, while plank is tried when formpiston jaw clamp block and former jaw clamp block closure
The frictional force that sample generates under three kinds of power collective effects, ensures that 1500MPa and the above plate stretch testing machine jaw clamp are drawn
It does not skid when stretching experiment, and the mesh antiskid line on boss and groove further increases rubbing in clamping specimen
Wipe power.
The beneficial effects of the invention are as follows：The requirement that disclosure satisfy that 1500MPa and the experiment of the above plate stretch is avoided stretching and be tried
Sample occurs to take off mouth with jaw clamp during testing, and ensures being smoothed out for tension test.
Description of the drawings
Fig. 1 is formpiston jaw clamp block front view of the present invention；
Fig. 2 is formpiston jaw clamp block side view of the present invention；
Fig. 3 is formpiston jaw clamp block vertical view of the present invention；
Fig. 4 is former jaw clamp block front view of the present invention；
Fig. 5 is former jaw clamp block side view of the present invention；
Fig. 6 is former jaw clamp block vertical view of the present invention；
Fig. 7 is sheet coupon drawing process schematic diagram of the present invention；
In figure：Formpiston jaw clamp block 11, boss 12, positioning pin 1, transition arc 1, locating slot 1, former jaw
Clamp block 21, groove 22, positioning pin 2 23, transition arc 2 24, locating slot 2 25, sheet coupon 30.
Specific implementation mode
Below in conjunction with attached drawing, by example, the invention will be further described.
With reference to attached drawing 1,2, a kind of 1500MPa or more plate stretchs testing machine jaw clamp, including upper jaw fixture is under
Jaw clamp, the upper jaw fixture include formpiston jaw clamp block 11 and former jaw clamp block 21, formpiston jaw clamp block
11 and the top of former jaw clamp block 21 be respectively equipped with and the matched positioning pin 1 of cupping machine jaw and positioning pin
2 23, being respectively arranged below with for formpiston jaw clamp block 11 and former jaw clamp block 21 is matched with cupping machine jaw
Locating slot 1 and locating slot 2 25, formpiston jaw clamp block 11 and former jaw clamp block are respectively equipped on 21 corresponding face
It is recessed on the boss 12 and former jaw clamp block 21 on formpiston jaw clamp block 11 with mutually matched boss 12 and groove 22
Mesh antiskid line is carved on slot 22 respectively, the structure of the lower jaw fixture is identical as the structure of upper jaw fixture.
In the present embodiment, with reference to attached drawing 7, sheet coupon 30 is processed making, plank according to GB/T 228.1-2010
The both ends of sample 30 are the clamping head of sample, and the middle part of sheet coupon 30 is sample parallel length part, and sheet coupon 30 presss from both sides
The width for holding head is more than the width of sample parallel length part, and the clamping head of sheet coupon 30 is parallel with sheet coupon 30
Transition arc is equipped between length thereof.
With reference to attached drawing 1-6, formpiston jaw clamp block 11 and former jaw clamp block 21 are common wedge block, formpiston pincers
The top of mouthful clamp block 11 and former jaw clamp block 21 is respectively equipped with and the matched positioning pin of cupping machine jaw 1
With positioning pin 2 23, formpiston jaw clamp block 11 and being respectively arranged below with for former jaw clamp block 21 are clamped with cupping machine
The matched locating slot 1 of mouth and locating slot 2 25, locating slot 1 and locating slot 2 25 are and cupping machine jaw phase
The arc groove of cooperation.Positioning pin 1, positioning pin 2 23 and locating slot 1, locating slot 2 25 are used to formpiston jaw clamp block
11 and former jaw clamp block 21 the positioning that is loaded.
With reference to attached drawing 1,2,3,7, the end phase of the shape and sheet coupon 30 of the boss 12 on formpiston jaw clamp block 11
Cooperation.The top of boss 12 is the matched rectangle in clamping head with sheet coupon 30, the width of the lower part of boss 12 with
The width of 30 parallel length part of sheet coupon matches, and transition arc 1 is equipped between the upper and lower part of boss 12.
With reference to attached drawing 4,5,6,7, the end phase of the shape and sheet coupon 30 of the groove 22 on former jaw clamp block 21
Cooperation.The top of groove 22 is the matched rectangle in clamping head with sheet coupon 30, the width of the lower part of groove 22 with
The width of 30 parallel length part of sheet coupon matches, and transition arc 2 24 is equipped between the upper and lower part of groove 22.
It is carved with phase interworking on the groove 22 on boss 12 and former jaw clamp block 21 on formpiston jaw clamp block 11
The mesh antiskid line of conjunction can increase the frictional force in clamping specimen.
A kind of application method of 1500MPa or more plate stretchs testing machine jaw clamp, adopt it is above-mentioned defined by 1500MPa
And the above plate stretch testing machine jaw clamp, it comprises the steps of：
1. by upper jaw fixture formpiston jaw clamp block 11 and former jaw clamp block 21 be loaded on cupping machine respectively
Upper jaw on, keep the groove 22 on the boss 12 and former jaw clamp block 21 on formpiston jaw clamp block 11 positioned opposite；
2. by lower jaw fixture formpiston jaw clamp block and former jaw clamp block be loaded under cupping machine respectively
On jaw, make on the former jaw clamp block in the boss and lower jaw fixture on the formpiston jaw clamp block in lower jaw fixture
Groove it is positioned opposite；
3. the clamping head portion at sheet coupon both ends to be respectively placed in the groove on the former jaw clamp block 21 in upper jaw fixture
22 and lower jaw fixture in former jaw clamp block on groove in；
4. being pressed from both sides by the formpiston jaw in the boss 12 and lower jaw fixture on the formpiston jaw clamp block 11 in upper jaw fixture
Have block on boss respectively with the moon in the groove 22 and lower jaw fixture on the former jaw clamp block 21 in upper jaw fixture
Groove cooperation on mould jaw clamp block, compresses the both ends of sheet coupon；
5. starting cupping machine, start tension test.
With reference to attached drawing 7, in the drawing process of sheet coupon 30, the clamping head of 30 upper end of sheet coupon is clamped by former
Under the directed force F 2 at transition arc 24, F3 and sheet coupon 30 between the upper and lower part of groove 22 on mouth clamp block 21
The clamping head at end is by directed force F 5, F6, while the formpiston jaw clamp block 11 in upper jaw fixture and former jaw clamp
To the formpiston jaw clamp block and former pincers in the frictional force F1 and lower jaw fixture of the generation of sheet coupon 30 when block 12 is closed
The frictional force F4 that mouth clamp block generates sheet coupon 30 when being closed, at F1, F2 and F3 and F4, F5 and F6 collective effect,
Ensure that 1500MPa and the above plate stretch testing machine jaw clamp do not skid when stretching experiment, and 12 He of boss
Mesh antiskid line on groove 22 further increases the frictional force in clamping specimen.
Claims (5)
1. a kind of 1500MPa or more plate stretchs testing machine jaw clamp, it is characterised in that include upper jaw fixture and lower jaw
Fixture, the upper jaw fixture include formpiston jaw clamp block（11）With former jaw clamp block（21）, formpiston jaw clamp block
（11）With former jaw clamp block（21）Top be respectively equipped with and the matched positioning pin of cupping machine jaw one（13）With
Positioning pin two（23）, formpiston jaw clamp block（11）With former jaw clamp block（21）Be respectively arranged below with and cupping machine
The matched locating slot of jaw one（15）With locating slot two（25）, formpiston jaw clamp block（11）With former jaw clamp block（21）
It is respectively equipped on corresponding face and mutually matched boss（12）And groove（22）, formpiston jaw clamp block（11）On boss
（12）With former jaw clamp block（21）On groove（22）It is upper to be carved with mesh antiskid line, the structure of the lower jaw fixture respectively
It is identical as the structure of upper jaw fixture.
2. 1500MPa or more plate stretchs testing machine jaw clamp according to claim 1, it is characterised in that the former
Jaw clamp block（21）On groove（22）With the matching ends of sheet coupon.
3. 1500MPa or more plate stretchs testing machine jaw clamp according to claim 2, it is characterised in that the former
Jaw clamp block（21）On groove（22）Top be the matched rectangle in clamping head with sheet coupon, former jaw
Clamp block（21）On groove（22）Lower part width and the width of sheet coupon parallel length part match, former jaw
Clamp block（21）On groove（22）Upper and lower part between be equipped with transition arc.
4. 1500MPa or more plate stretchs testing machine jaw clamp according to claim 1, it is characterised in that the formpiston
Jaw clamp block（11）With former jaw clamp block（21）It is wedge block.
5. a kind of application method of 1500MPa or more plate stretchs testing machine jaw clamp, it is characterised in that：Using claim
1500MPa defined by 1-4 and the above plate stretch testing machine jaw clamp, comprise the steps of：
1. by the formpiston jaw clamp block in upper jaw fixture（11）With former jaw clamp block（21）It is loaded on stretching examination respectively
It tests on the upper jaw of machine, makes formpiston jaw clamp block（11）On boss（12）With former jaw clamp block（21）On groove
（22）It is positioned opposite；
2. by lower jaw fixture formpiston jaw clamp block and former jaw clamp block be loaded under cupping machine respectively
On jaw, make on the former jaw clamp block in the boss and lower jaw fixture on the formpiston jaw clamp block in lower jaw fixture
Groove it is positioned opposite；
3. the clamping head portion at sheet coupon both ends to be respectively placed in the former jaw clamp block in upper jaw fixture（21）On it is recessed
Slot（22）In the groove on the former jaw clamp block in lower jaw fixture；
4. passing through the formpiston jaw clamp block in upper jaw fixture（11）On boss（12）With the formpiston pincers in lower jaw fixture
Boss on mouthful clamp block respectively with the former jaw clamp block in upper jaw fixture（21）On groove（22）It is pressed from both sides with lower jaw
Groove cooperation on former jaw clamp block in tool, compresses the both ends of sheet coupon；
5. starting cupping machine, start tension test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287591.3A CN108362556A (en) | 2018-03-31 | 2018-03-31 | 1500MPa or more plate stretch testing machine jaw clamps and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287591.3A CN108362556A (en) | 2018-03-31 | 2018-03-31 | 1500MPa or more plate stretch testing machine jaw clamps and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108362556A true CN108362556A (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810287591.3A Pending CN108362556A (en) | 2018-03-31 | 2018-03-31 | 1500MPa or more plate stretch testing machine jaw clamps and application method |
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| CN (1) | CN108362556A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374404A (en) * | 2018-11-02 | 2019-02-22 | 河海大学 | A kind of sample preparation device, method and the test method of geotechnique's tension test |
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| CN102323140A (en) * | 2011-08-11 | 2012-01-18 | 西北工业大学 | Sample and clamp for thin walled tube high temperature tensile test |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
| CN203941063U (en) * | 2014-06-30 | 2014-11-12 | 武汉钢铁(集团)公司 | Super thin metal strip high temperature tension test fixture |
| US20160161380A1 (en) * | 2013-08-07 | 2016-06-09 | Shimadzu Corporation | Jig mounting device for material testing machine |
| CN206671068U (en) * | 2017-04-27 | 2017-11-24 | 济南天辰试验机制造有限公司 | The replaceable jaw of minor diameter steel wire tension test |
| KR101811619B1 (en) * | 2016-10-14 | 2017-12-27 | (주)알에스피 | Jig for Thin Sheet Specimen Fatigue Test having Anti-Buckling Function |
| CN206960246U (en) * | 2017-07-28 | 2018-02-02 | 重庆科力建设工程质量检测有限公司 | A kind of reinforcing bar tensile testing machine |
| CN208043539U (en) * | 2018-03-31 | 2018-11-02 | 唐山钢铁集团有限责任公司 | A kind of 1500MPa and the above plate stretch testing machine jaw clamp |
-
2018
- 2018-03-31 CN CN201810287591.3A patent/CN108362556A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323140A (en) * | 2011-08-11 | 2012-01-18 | 西北工业大学 | Sample and clamp for thin walled tube high temperature tensile test |
| US20160161380A1 (en) * | 2013-08-07 | 2016-06-09 | Shimadzu Corporation | Jig mounting device for material testing machine |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
| CN203941063U (en) * | 2014-06-30 | 2014-11-12 | 武汉钢铁(集团)公司 | Super thin metal strip high temperature tension test fixture |
| KR101811619B1 (en) * | 2016-10-14 | 2017-12-27 | (주)알에스피 | Jig for Thin Sheet Specimen Fatigue Test having Anti-Buckling Function |
| CN206671068U (en) * | 2017-04-27 | 2017-11-24 | 济南天辰试验机制造有限公司 | The replaceable jaw of minor diameter steel wire tension test |
| CN206960246U (en) * | 2017-07-28 | 2018-02-02 | 重庆科力建设工程质量检测有限公司 | A kind of reinforcing bar tensile testing machine |
| CN208043539U (en) * | 2018-03-31 | 2018-11-02 | 唐山钢铁集团有限责任公司 | A kind of 1500MPa and the above plate stretch testing machine jaw clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374404A (en) * | 2018-11-02 | 2019-02-22 | 河海大学 | A kind of sample preparation device, method and the test method of geotechnique's tension test |
| CN109374404B (en) * | 2018-11-02 | 2021-10-12 | 河海大学 | Sample preparation device and method for geotechnical tensile test and test method |
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