CN103115815A - Jig for testing notch sensitivity of bolt - Google Patents
Jig for testing notch sensitivity of bolt Download PDFInfo
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- CN103115815A CN103115815A CN2013100213380A CN201310021338A CN103115815A CN 103115815 A CN103115815 A CN 103115815A CN 2013100213380 A CN2013100213380 A CN 2013100213380A CN 201310021338 A CN201310021338 A CN 201310021338A CN 103115815 A CN103115815 A CN 103115815A
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- bolt
- drawing plate
- test
- testing
- push rods
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Abstract
The invention relates to bolt testing tools and particularly relates to a jig for testing the notch sensitivity of a bolt. The jig comprises an upper stretching plate and a lower stretching plate, wherein center holes which are used for being connected with a tested bolt are formed in the middles of the upper and lower stretching plates and are used for connecting a tested bolt between the upper stretching plate and the lower stretching plate; an upper pressing plate is in spacing connection with the upper stretching plate and the lower stretching plate through more than two bolt push rods; and a lower pressing plate is in spacing connection with the lower stretching plate and the upper stretching plate through another more than two bolt push rods. According to testing requirements, test clamp blocks with different shapes can be prepared simultaneously so as to change the stress of the tested bolt, and the then requirements on multiple test indicators are met. The jig has the advantages that the performances of the bolts can be determined by applying pressing-type axial loads, the tested bolt and the testing jig can be mounted conveniently and fast, the testing operation is convenient, and the test accuracy is high.
Description
Technical field
The present invention relates to a kind of bolt test tool, i.e. a kind of bolt notch sensitivity test fixture.
Background technology
In the prior art, will carry out notch sensitivity test in the production of special material bolt, method commonly used is that bolt is connected between two holders, does tension test on drawing machine, its shortcoming is to do the axial load test, needs special stretcher.
Summary of the invention
The objective of the invention is provides a kind of test index requirement of satisfying for above-mentioned deficiency, can do a kind of bolt notch sensitivity test fixture of pressure type axial load test.
Technical solution of the present invention is: a kind of bolt notch sensitivity test fixture comprises upper and lower drawing plate, and the center pit of joint test bolt is arranged in the middle of upper and lower drawing plate, is used for joint test bolt between upper and lower drawing plate; Top board is connected with upper and lower drawing plate interval by the bolt push rod that (comprises two) more than two; Lower platen is connected with upper and lower drawing plate interval by two other above (comprising two) bolt push rod.
Test bolt one or both ends are connected with upper and lower drawing plate by the fixture block that can change.There is the groove of clamping piece upper drawing plate center pit upper end or lower drawing plate center pit lower end; Or all there is the groove of clamping piece upper drawing plate center pit upper end and lower drawing plate center pit lower end.Twist the fixture block surface of contact of connected nut end in contact with test bolt bolt head end or the other end and make plane, inclined-plane, the conical surface, cambered surface or inclined to one side cambered surface.Or make the face of needs according to the test needs, be not limited to this.Four altogether of bolt push rods, two bolt push rods that are connected with top board are arranged in parallel, and two bolt push rods that are connected with lower platen are arranged in parallel and two bolts being connected with top board are and are arranged vertically.
Advantage of the present invention is: 1, according to testing requirements, can prepare simultaneously difform test fixture block, change test bolt strained, satisfy the Multitest index request.2, frock of the present invention realizes applying " pressure type " axial load and measures the bolt performance, installation testing bolt and test fixture more easily, and test operation is convenient, precision that measure is higher.
Below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
Description of drawings
Fig. 1 is structure diagram of the present invention.
Fig. 2 is that Fig. 1 is along A-A cross-section structure sketch.
Fig. 3 is the right TV structure sketch of Fig. 1.
Fig. 4 is the drawing plate structure diagram.
Fig. 5 is Fig. 4 plan structure sketch.
Fig. 6 is fixture block embodiment 1 structure diagram.
Fig. 7 is fixture block embodiment 2 structure diagrams.
Fig. 8 is Fig. 7 plan structure sketch.
Fig. 9 is fixture block embodiment 3 structure diagrams.
Figure 10 is bolt push rod structure sketch.
Embodiment
Referring to Fig. 1,2,4,5,10, bolt notch sensitivity test fixture comprises upper and lower drawing plate 1,2, and the center pit of joint test bolt 3 is arranged in the middle of upper and lower drawing plate 1,2; Connect when being connected with test bolt 3(test between upper and lower drawing plate 1,2, add nut screwing clamping); Top board 4 is connected with upper and lower drawing plate 1,2 intervals by two bolt push rods 5, and namely there is gear platform 9(undergauge at bolt push rod 5 two ends), block top board 4, lower platen 6.
Referring to Fig. 1,3, lower platen 6 is connected with upper and lower drawing plate 2,1 interval by two other bolt push rod 7.Four altogether of bolt push rods, two bolt push rods 5 that are connected with top board 4 are arranged in parallel, and two bolt push rods 7 that are connected with lower platen 6 are arranged in parallel and two bolt push rods 5 being connected with top board 4 are and are arranged vertically (referring to Fig. 2), compact conformation.(not drawing test bolt 3 in Fig. 3).
Referring to Fig. 1,2, test bolt 3 upper ends are connected (suitable and bolting pad use) by the fixture block 8 that can change with upper drawing plate 1.There is groove 10 and the groove 11 of clamping piece (8) upper drawing plate center pit upper end and lower drawing plate center pit lower end; Fixture block 8 is placed in drawing plate groove 10, fixture block 8 effect is that diameter of bore can conversion, to adapt to the variation of different tests bolt 3 diameters, the fixture block 8 that only needs to change different inner diameters gets final product, fixture block 8 another vital role are to make difformity with fixture block 8 surface of contact of test bolt 3 bolt head end end contacts, form differing tilt angles and the difform test load of head, as make plane, inclined-plane (referring to Fig. 6), the conical surface (referring to Fig. 9), cambered surface or cambered surface (referring to Fig. 7,8) partially, shape is not limited to this, decides as required.Fixture block 8 figure of putting in groove 11 have omited.
This device is when applying the axial pressure type load of regulation on the titanium alloy bolt, measures the Special experimental apparatus of its performance.
Using method:
1, according to different test specimens, in fixture block 8 embedding devices with different sizes and angle.
2, connect tested bolt sample.
3, device is put into testing machine, apply standard code load.When upper and lower pressing plate 4,6 pressurized, upper and lower drawing plate 1,2 is subjected to pulling force, the connected test bolt 3 that stretches, because fixture block 8 surface configurations are different, the stressed difference of test bolt 3 can satisfy various testing requirementss simultaneously.
Claims (5)
1. a bolt notch sensitivity test fixture, is characterized in that comprising upper and lower drawing plate (1,2), and the center pit of joint test bolt (3) is arranged in the middle of upper and lower drawing plate (1,2); Top board (4) is connected with upper and lower drawing plate (1,2) interval by two above bolt push rods (5); Lower platen (6) is connected with upper and lower drawing plate (2,1) interval by two other above bolt push rod (7).
2. according to bolt notch sensitivity test fixture claimed in claim 1, it is characterized in that testing bolt (3) one or both ends and be connected with upper and lower drawing plate (1,2) by the fixture block (8) that can change.
3. according to bolt notch sensitivity test fixture claimed in claim 2, it is characterized in that there is the groove (10 or 11) of clamping piece (8) drawing plate center pit upper end or lower drawing plate center pit lower end; Or all there is the groove (10 and 11) of clamping piece (8) upper drawing plate center pit upper end and lower drawing plate center pit lower end.
4. according to the described bolt notch sensitivity of claim 2 or 3 test fixture, it is characterized in that making plane, inclined-plane, the conical surface, cambered surface or inclined to one side cambered surface with fixture block (8) surface of contact of test bolt (3) bolt head end or the stubborn connected nut end in contact of the other end.
5. according to bolt notch sensitivity test fixture claimed in claim 4, it is characterized in that four altogether of bolt push rods, two the bolt push rods (5) that are connected with top board (4) are arranged in parallel, and two the bolt push rods (7) that are connected with lower platen (6) are arranged in parallel and two bolt push rods (5) of being connected with top board (4) are and are arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100213380A CN103115815A (en) | 2013-01-21 | 2013-01-21 | Jig for testing notch sensitivity of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100213380A CN103115815A (en) | 2013-01-21 | 2013-01-21 | Jig for testing notch sensitivity of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103115815A true CN103115815A (en) | 2013-05-22 |
Family
ID=48414239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100213380A Pending CN103115815A (en) | 2013-01-21 | 2013-01-21 | Jig for testing notch sensitivity of bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115815A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454879A (en) * | 2014-10-31 | 2015-03-25 | 北京宇航系统工程研究所 | Method for restraining reduction of pretightening force of separating device such as separating nut |
| RU2579175C1 (en) * | 2014-09-15 | 2016-04-10 | Общество с ограниченной ответственностью Фирма "СТЭК" | Device for monitoring strength of pins (bolts) |
| CN105510129A (en) * | 2015-11-23 | 2016-04-20 | 沈阳黎明航空发动机(集团)有限责任公司 | A testing method for end face breaking strength of filled plastic irregular parts and a testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040057121A (en) * | 2002-12-24 | 2004-07-02 | 재단법인 포항산업과학연구원 | Compression Jig for High Strength Bolt Tension Test |
| CN101629884A (en) * | 2009-08-20 | 2010-01-20 | 王剑薇 | Clamping apparatus for improving precision of material tester |
| CN201707263U (en) * | 2010-05-21 | 2011-01-12 | 重庆顺泰铁塔制造有限公司 | Bolt test fixture |
| CN102012345A (en) * | 2010-11-28 | 2011-04-13 | 贵州航天新力铸锻有限责任公司 | Universal clamping mechanism for bolt/nut mechanical test |
-
2013
- 2013-01-21 CN CN2013100213380A patent/CN103115815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040057121A (en) * | 2002-12-24 | 2004-07-02 | 재단법인 포항산업과학연구원 | Compression Jig for High Strength Bolt Tension Test |
| CN101629884A (en) * | 2009-08-20 | 2010-01-20 | 王剑薇 | Clamping apparatus for improving precision of material tester |
| CN201707263U (en) * | 2010-05-21 | 2011-01-12 | 重庆顺泰铁塔制造有限公司 | Bolt test fixture |
| CN102012345A (en) * | 2010-11-28 | 2011-04-13 | 贵州航天新力铸锻有限责任公司 | Universal clamping mechanism for bolt/nut mechanical test |
Non-Patent Citations (2)
| Title |
|---|
| 孔庆瑞等: "小直径螺栓和螺钉拉伸试验装置的设计", 《工程与试验》 * |
| 杨櫂: ""热处理后滚压螺纹对30CrMnSiA,30CrMnSiNi2A钢螺栓缺口敏感性的影响"", 《航空制造技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2579175C1 (en) * | 2014-09-15 | 2016-04-10 | Общество с ограниченной ответственностью Фирма "СТЭК" | Device for monitoring strength of pins (bolts) |
| CN104454879A (en) * | 2014-10-31 | 2015-03-25 | 北京宇航系统工程研究所 | Method for restraining reduction of pretightening force of separating device such as separating nut |
| CN105510129A (en) * | 2015-11-23 | 2016-04-20 | 沈阳黎明航空发动机(集团)有限责任公司 | A testing method for end face breaking strength of filled plastic irregular parts and a testing device |
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| PB01 | Publication | ||
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Application publication date: 20130522 |