CN103048190A - Tensile test fixture for tensile testing machine - Google Patents
Tensile test fixture for tensile testing machine Download PDFInfo
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- CN103048190A CN103048190A CN2012105476814A CN201210547681A CN103048190A CN 103048190 A CN103048190 A CN 103048190A CN 2012105476814 A CN2012105476814 A CN 2012105476814A CN 201210547681 A CN201210547681 A CN 201210547681A CN 103048190 A CN103048190 A CN 103048190A
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- shaped opening
- tensile test
- test fixture
- coupling spindle
- clamp head
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Abstract
The invention relates to a tensile test fixture for a tensile testing machine. The tensile test fixture for the tensile testing machine comprises a fixture head and a connecting shaft, wherein the connecting shaft consists of an upper cylinder and a lower cylinder with different diameters; a central hole matched with a large-diameter cylinder of the connecting shaft is formed in an upper center of the fixture head; the fixture head is connected with a shaft coupler through the central hole; a middle U-shaped opening is formed at the lower part of the central hole; a lower U-shaped opening is formed in the lower part of the middle U-shaped opening; the middle U-shaped opening is larger than the lower U-shaped opening; and two tangent lines of the middle U-shaped opening are parallel. The tensile test fixture for the tensile testing machine does not use a friction welding machine during a tensile test on the thickness of a steel plate, can save equipment investment of about 300,000 yuan, saves the cost and significantly improves the testing efficiency.
Description
Technical field
The invention belongs to tension test equipment technology field, particularly a kind of tension tester tensile test fixture.
Background technology
The tension test of steel plate thickness direction, owing to be subject to the restriction of thickness of slab, directly clamping thereby can not do experiment of tension tester.Therefore, can only adopt friction welding machine with unprocessed steel plate thickness blank along 15 millimeters of thickness of slab direction two ends welding diameter, 120 millimeters round steel of length, then thickness of slab partly is processed into chest-developing bar.The upper and lower round specimen jaw of tension tester is clamped 15 millimeters of two ends welding diameter, 120 millimeters round steel of length when doing tension test, can finish the tension test of steel plate thickness direction.Use friction welding machine, equipment investment is about 300,000, obviously is the cost that has greatly increased the steel plate thickness tension test.
At present steel plate thickness direction tension test also someone proposes to manufacture unit clamp; but its structure is weldment, in use often the problems such as weld cracking, constructional variant can occur, needs frequent reparation to use; increase the tension test cost, reduced tension test efficient.
Summary of the invention
The present invention provides a kind of easy processing durable again for solving the technical matters that exists in the known technology, and is applicable to the tension tester tensile test fixture of certain thickness scope.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is:
A kind of tension tester tensile test fixture, comprise clamp head and coupling spindle, described coupling spindle is made of two different right cylinders of diameter up and down, the central upper portion of described clamp head is provided with the center pit that cooperates with the coupling spindle large diameter cylinder, described clamp head links shaft coupling by center pit, described center pit bottom is provided with middle part U-shaped opening, described middle part U-shaped lower opening portion is provided with bottom U-shaped opening, described middle part U-shaped opening is greater than bottom U-shaped opening, and two tangent lines of described middle part U-shaped opening are parallel.
Described center pit is circular hole or threaded hole.
Described threaded hole is threaded with the large diameter cylinder of coupling spindle.
Described circular hole is connected with the large diameter cylinder register pin of coupling spindle.
Described clamp head and coupling spindle are coaxial.
Described clamp head is made of right cylinder.
Described center pit is identical with the large diameter cylinder diameter of coupling spindle, and greater than 10 millimeters of specimen finish.
Advantage and good effect that the present invention has are: the present invention has avoided when carrying out the steel plate thickness tension test using friction welding machine, and it is about 300,000 to save equipment investment, provides cost savings, and has significantly improved test efficiency.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is Figure 1A-A cut-open view;
Fig. 3 is that the present invention is at WAW-300C testing machine use principle figure;
Fig. 4 is the I enlarged drawing of Fig. 3.
Among Fig. 1-Fig. 4,1. coupling spindle, 2. clamp head 3. goes up clamping cylinder, and 4. lifting motor 5. descends clamping cylinder, 6. goes up anchor clamps, 7. round specimen, 8. lower clamp, 9. oil cylinder, 10. upper jaw, 11. worktable, 12. lower jaws.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1 and Fig. 2, a kind of tension tester tensile test fixture, comprise clamp head 2 and coupling spindle 1, coupling spindle 1 is made of two different right cylinders of diameter up and down, clamp head 2 is made of right cylinder, the central upper portion of clamp head 2 is provided with the hole that cooperates with coupling spindle 1 large diameter cylinder, the hole can be circular hole or threaded hole, when the hole is threaded hole, clamp head 2 is connected by the large diameter cylinder of screw thread with coupling spindle 1, and this moment, the cylinder with large diameter body side surface of coupling spindle 1 was provided with external thread; When the hole was circular hole, clamp head 2 was connected by the large diameter cylinder of register pin with coupling spindle 1, and this moment, the cylinder with large diameter body side surface of coupling spindle 1 did not need to arrange external thread, was smooth surface.No matter be to adopt to be threaded, or register pin connects, the large diameter cylinder diameter of coupling spindle 1 is identical with the diameter in clamp head 2 central upper portion holes, and greater than 10 millimeters of specimen finish.
The center pit bottom of clamp head 2 is provided with middle part U-shaped opening, and middle part U-shaped lower opening portion is provided with bottom U-shaped opening, and middle part U-shaped opening is greater than bottom U-shaped opening, and two tangent lines of middle part U-shaped opening must be parallel.
The present invention will guarantee the right alignment of clamp head 2 and coupling spindle 1.
See also Fig. 3 and Fig. 4, principle of work of the present invention is: clamping cylinder 3 in the startup, anchor clamps 6 on upper jaw 10 clampings start lower clamping cylinder 5, lower jaw 12 clamping lower clamps 8, after starting lifting motor 4 and adjust to correct position according to the length of sample 7, place sample 7, start oil cylinder piston 9 worktable 11 is upwards moved until sample is broken, take out and break sample, starting oil cylinder piston 9 makes worktable 11 operation downwards until correct position is placed next part test specimen, thus Cyclic test.
The present invention has avoided when carrying out the steel plate thickness tension test using friction welding machine, and it is about 300,000 to save equipment investment, provides cost savings, and has significantly improved test efficiency.
In sum, the present invention goes for thickness of slab 30mm≤t≤400mm, and t is product thickness, specimen finish d=10mm, and sample parallel length L should be at least 1.5d, and is no more than 80mm.The manufacturer of every China thickness directional properties steel plate can adopt.
Claims (7)
1. tension tester tensile test fixture, it is characterized in that, comprise clamp head (2) and coupling spindle (1), described coupling spindle (1) is made of two different right cylinders of diameter up and down, the central upper portion of described clamp head (2) is provided with the center pit that cooperates with coupling spindle (1) large diameter cylinder, described clamp head (2) is by center pit link shaft coupling (1), described center pit bottom is provided with middle part U-shaped opening, described middle part U-shaped lower opening portion is provided with bottom U-shaped opening, described middle part U-shaped opening is greater than bottom U-shaped opening, and two tangent lines of described middle part U-shaped opening are parallel.
2. cupping machine tensile test fixture according to claim 1 is characterized in that, described center pit is circular hole or threaded hole.
3. cupping machine tensile test fixture according to claim 2 is characterized in that, described threaded hole is threaded with the large diameter cylinder of coupling spindle (1).
4. cupping machine tensile test fixture according to claim 2 is characterized in that, described circular hole is connected with the large diameter cylinder register pin of coupling spindle (1).
5. tension tester tensile test fixture according to claim 1 is characterized in that, described clamp head (2) and coupling spindle (1) are coaxial.
6. cupping machine tensile test fixture according to claim 1 is characterized in that, described clamp head (2) is made of right cylinder.
7. the described cupping machine tensile test fixture of arbitrary claim is characterized in that according to claim 1-6, and described center pit is identical with the large diameter cylinder diameter of coupling spindle (1), and greater than 10 millimeters of specimen finish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105476814A CN103048190A (en) | 2012-12-14 | 2012-12-14 | Tensile test fixture for tensile testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105476814A CN103048190A (en) | 2012-12-14 | 2012-12-14 | Tensile test fixture for tensile testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103048190A true CN103048190A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105476814A Pending CN103048190A (en) | 2012-12-14 | 2012-12-14 | Tensile test fixture for tensile testing machine |
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| CN (1) | CN103048190A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512798A (en) * | 2013-08-09 | 2014-01-15 | 成都高原汽车工业有限公司 | Clamp for threaded fastener proof load tests |
| CN104614236A (en) * | 2015-02-28 | 2015-05-13 | 福建融诚建设工程质量检测有限公司 | Convenient safety clamp |
| CN105626648A (en) * | 2016-03-01 | 2016-06-01 | 银邦金属复合材料股份有限公司 | Connecting device for tensile test of welding connector and tensile method |
| CN106289982A (en) * | 2016-10-27 | 2017-01-04 | 长春机械科学研究院有限公司 | A kind of stretching mechanical property testing device |
| CN106525592A (en) * | 2016-12-20 | 2017-03-22 | 安徽理工大学 | Lifting component, experimental device thereof and experimental method |
| CN108732019A (en) * | 2018-07-16 | 2018-11-02 | 江苏省特种设备安全监督检验研究院 | Puller system step-up system |
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
| CN113063663A (en) * | 2021-03-24 | 2021-07-02 | 江苏大学 | Tensile test mechanics experimental facilities |
Citations (5)
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|---|---|---|---|---|
| US5056372A (en) * | 1990-11-28 | 1991-10-15 | Gte Laboratories Incorporated | Copper collet grip mechanism |
| CN200956002Y (en) * | 2006-08-21 | 2007-10-03 | 毛香恩 | Universal material testing machine test piece automatic calibrating vertical clamp |
| JP2007285703A (en) * | 2006-04-12 | 2007-11-01 | Nippon Steel Corp | High-temperature tensile testing jig |
| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN202599753U (en) * | 2012-05-08 | 2012-12-12 | 浙江裕泰汽车配件有限公司 | Fastener tensile testing fixture |
-
2012
- 2012-12-14 CN CN2012105476814A patent/CN103048190A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056372A (en) * | 1990-11-28 | 1991-10-15 | Gte Laboratories Incorporated | Copper collet grip mechanism |
| JP2007285703A (en) * | 2006-04-12 | 2007-11-01 | Nippon Steel Corp | High-temperature tensile testing jig |
| CN200956002Y (en) * | 2006-08-21 | 2007-10-03 | 毛香恩 | Universal material testing machine test piece automatic calibrating vertical clamp |
| CN101706391A (en) * | 2009-12-11 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Anti-adhesive shoulder fixture for improving efficiency of endurance test |
| CN202599753U (en) * | 2012-05-08 | 2012-12-12 | 浙江裕泰汽车配件有限公司 | Fastener tensile testing fixture |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512798A (en) * | 2013-08-09 | 2014-01-15 | 成都高原汽车工业有限公司 | Clamp for threaded fastener proof load tests |
| CN104614236A (en) * | 2015-02-28 | 2015-05-13 | 福建融诚建设工程质量检测有限公司 | Convenient safety clamp |
| CN105626648A (en) * | 2016-03-01 | 2016-06-01 | 银邦金属复合材料股份有限公司 | Connecting device for tensile test of welding connector and tensile method |
| CN106289982A (en) * | 2016-10-27 | 2017-01-04 | 长春机械科学研究院有限公司 | A kind of stretching mechanical property testing device |
| CN106289982B (en) * | 2016-10-27 | 2019-02-15 | 中机试验装备股份有限公司 | A kind of stretching mechanical property testing device |
| CN106525592A (en) * | 2016-12-20 | 2017-03-22 | 安徽理工大学 | Lifting component, experimental device thereof and experimental method |
| CN106525592B (en) * | 2016-12-20 | 2019-02-19 | 安徽理工大学 | One kind lifting component and its experimental provision and experimental method |
| CN108732019A (en) * | 2018-07-16 | 2018-11-02 | 江苏省特种设备安全监督检验研究院 | Puller system step-up system |
| CN112362465A (en) * | 2021-01-14 | 2021-02-12 | 南京研华智能科技有限公司 | Jaw device suitable for tensile testing machine |
| CN113063663A (en) * | 2021-03-24 | 2021-07-02 | 江苏大学 | Tensile test mechanics experimental facilities |
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Application publication date: 20130417 |