CN102012345A - Universal clamping mechanism for bolt/nut mechanical test - Google Patents

Universal clamping mechanism for bolt/nut mechanical test Download PDF

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Publication number
CN102012345A
CN102012345A CN2010105736032A CN201010573603A CN102012345A CN 102012345 A CN102012345 A CN 102012345A CN 2010105736032 A CN2010105736032 A CN 2010105736032A CN 201010573603 A CN201010573603 A CN 201010573603A CN 102012345 A CN102012345 A CN 102012345A
Authority
CN
China
Prior art keywords
bolt
nut
transition
clamping
mechanical test
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.)
Pending
Application number
CN2010105736032A
Other languages
Chinese (zh)
Inventor
洪大军
李新清
李向东
李永刚
龙开芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Aerospace Xinli Casting and Forging Co Ltd
Original Assignee
Guizhou Aerospace Xinli Casting and Forging Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guizhou Aerospace Xinli Casting and Forging Co Ltd filed Critical Guizhou Aerospace Xinli Casting and Forging Co Ltd
Priority to CN2010105736032A priority Critical patent/CN102012345A/en
Publication of CN102012345A publication Critical patent/CN102012345A/en
Pending legal-status Critical Current

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Abstract

The invention provides a universal clamping mechanism for a bolt/nut mechanical test, which is composed of an upper clamping head, a lower clamping head, a bolt gasket, a connecting piece for bolt transition, a nut gasket and a connecting piece for nut transition, wherein the inner end face of a notch of the upper clamping head is provided with the bolt gasket or nut gasket; the lower end of the upper clamping head is connected with the upper end of the connecting piece for bolt transition or connecting piece for nut transition; and the lower end of the connecting piece for bolt transition or connecting piece for nut transition is connected with the upper end of the lower clamping head. The bolt/nut to be tested is connected with the lower clamping head through the connecting piece for bolt transition or connecting piece for nut transition, and then clamped on the inner end face of the notch of the upper clamping head; and the mechanical test on the bolt or nut can be carried out after a universal material testing machine holds the upper and lower clamping ends of the upper and lower clamping heads. The universal clamping mechanism has the advantages of strong universality, high durability and low testing cost, and is suitable for mechanical testing on bolt/nut fasteners with various sizes.

Description

The general clamping device of the mechanical test of bolt/nut
Technical field
The invention belongs to the measuring mechanical property technical field, particularly a kind of general clamping device of mechanical test that is used for bolt/nut.
Background technology
The nut that the measuring mechanical property field relates to guarantees the clamping device that load test, bolt tension force load test, bolt wedge load test all need design experiment to use.And these clamping devices system is according to the structural design of the clamping jaw of the diameter of screw of bolt/nut and testing equipment, the threaded fastener of each specification needs the complete mechanism of one cover of design separately, its upper grip of designed mechanism adopts steel pipe manufacturing usually, the step that is provided with in the steel pipe is used to place bolt or nut, after it used once, steel pipe was yielding because of bearing huge clamping force; Its lower chuck adopts rod iron to make usually, and an end of rod iron is processed into threaded hole, is used for the web member of tackbolt or nut test usefulness, and kill because of substantial load easily causes the screw thread distortion test back.
The clamping device of this class formation in sum, need to give the bolt/nut of different diameter of screw to be equipped with the clamping device that a whole set of tests usefulness, its versatility is poor, and use the yielding damage in back and scrap, not durable in use, when chance was carried out mechanical test to the high strength threaded fastener, its weak point was particularly outstanding.
Summary of the invention
Purpose of the present invention is the problems that the combination mechanical test clamping device that is used for bolt/nut in sum exists, and a kind of highly versatile, durable in use that has is provided, and is particularly useful for the general clamping device of mechanical test of high-intensity bolt/nut.
The mechanical test clamping device of bolt/nut of the present invention is made of with web member with web member, nut collar, nut transition upper grip, lower chuck, bolt washer, bolt transition.Upper grip, lower chuck, bolt transition adopt high-strength material to make with web member, nut transition with web member.
The notch inner face of upper grip is provided with bolt washer, and the lower end of upper grip is connected with the upper end of bolt transition with web member, and the bolt transition is connected with the upper end of lower chuck with the lower end of web member, and the setting of this clamping device is applicable to the mechanical test to bolt.
The notch inner face of upper grip is provided with nut collar, and the lower end of upper grip is connected with the upper end of nut transition with web member, and the nut transition is connected with the upper end of lower chuck with the lower end of web member, and the setting of this clamping device is applicable to the mechanical test to nut.
The general clamping device of the mechanical test of bolt/nut of the present invention, the clamping jaw of its upper grip, lower chuck and universal testing machine is complementary, be suitable for the mechanical test of the bolt/nut securing member of all size, its highly versatile, make because of adopting high-strength material, bearing load is big, and is durable in use.
Description of drawings
Fig. 1 is the structural representation of the general clamping device of mechanical test of bolt of the present invention;
Fig. 2 is the structural representation of the general clamping device of mechanical test of nut of the present invention;
Fig. 3 is the structural representation of the general clamping device user mode of mechanical test of bolt of the present invention;
Fig. 4 is the structural representation of the general clamping device user mode of mechanical test of nut of the present invention.
Embodiment
Below in conjunction with above-mentioned accompanying drawing example, the general clamping device of mechanical test of bolt/nut of the present invention is done further narration.
The example of the general clamping device of mechanical test of bolt/nut of the present invention includes upper grip 1, bolt washer 2, bolt transition piece 3, lower chuck 4, nut collar 5, nut transition piece 6, bolt to be measured 10, nut to be measured 11.
The general clamping device of the mechanical test of bolt/nut of the present invention is made of with web member 6 with web member 3, nut collar 5, nut transition upper grip 1, lower chuck 4, bolt washer 2, bolt transition.
The general clamping device of mechanical test that is used for bolt, last bare terminal end 7 on its upper grip 1 is complementary with the clamping jaw of universal testing machine, the notch inner face 8 of upper grip 1 is provided with bolt washer 2, the lower end of upper grip 1 is connected with the upper end of bolt transition with web member 3, the bolt transition is connected with the upper end of lower chuck 4 with the lower end of web member 3, and the following bare terminal end 9 on the lower chuck 4 is complementary with the clamping jaw of universal testing machine.
The general clamping device of mechanical test that is used for nut, last bare terminal end 7 on its upper grip 1 is complementary with the clamping jaw of universal testing machine, the notch inner face 8 of upper grip 1 is provided with nut collar 5, the lower end of upper grip 1 is connected with the upper end of nut transition with web member 6, the nut transition is connected with the upper end of lower chuck 4 with the lower end of web member 6, and the following bare terminal end 9 on the lower chuck 4 is complementary with the clamping jaw of universal testing machine.
The general clamping device of the mechanical test of bolt/nut of the present invention, its upper grip 1, lower chuck 4, bolt transition adopt high-strength materials such as 40NCDV7.03 or 40CrNi2Mo to make with web member 3, nut transition with web member 6, so durable in use.Upper grip 1, lower chuck 4 are general parts that the clamping jaw with universal testing machine is complementary, and it both had been applicable to the mechanical test of carrying out bolt on universal testing machine, was applicable to the mechanical test of carrying out nut on universal testing machine again.
When the general clamping device of the mechanical test of bolt of the present invention detects bolt, the last bare terminal end 7 of upper grip 1 and the following bare terminal end 9 of lower chuck 4 are clamped on the universal testing machine, be threaded onto bolt transition piece 3 after again bolt 10 to be measured being passed bolt washer 2, then bolt is threaded onto lower chuck 4 with transition piece 3, again bolt washer 2 is stuck on the notch inner face 8 of upper grip 1, can carries out mechanical test toward the reinforcing of P direction to bolt 10 to be measured by universal testing machine.
When the general clamping device of the mechanical test of nut of the present invention detects nut, the last bare terminal end 7 of upper grip 1 and the following bare terminal end 9 of lower chuck 4 are clamped on the universal testing machine, again nut collar 5 and nut 11 to be measured are loaded on nut with on the transition piece 6, then nut is threaded onto lower chuck 4 with transition piece 6, again nut collar 5 is stuck on the notch inner face 8 of upper grip 1, can carries out mechanical test toward the reinforcing of P direction to nut 11 to be measured by universal testing machine.

Claims (2)

1. the general clamping device of the mechanical test of a bolt/nut is made of with web member (6) with web member (3), nut collar (5), nut transition upper grip (1), lower chuck (4), bolt washer (2), bolt transition, it is characterized in that:
The notch inner face (8) of a, upper grip (1) is provided with bolt washer (2), and the lower end of upper grip (1) is connected with the upper end of bolt transition with web member (3), and the bolt transition is connected with the upper end of lower chuck (4) with the lower end of web member (3),
The notch inner face (8) of b, upper grip (1) is provided with nut collar (5), and the lower end of upper grip (1) is connected with the upper end of nut transition with web member (6), and the nut transition is connected with the upper end of lower chuck (4) with the lower end of web member (6).
2. clamping device according to claim 1 is characterized in that upper grip (1), lower chuck (4), bolt transition adopt high-strength material to make with web member (3), nut transition with web member (6).
CN2010105736032A 2010-11-28 2010-11-28 Universal clamping mechanism for bolt/nut mechanical test Pending CN102012345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105736032A CN102012345A (en) 2010-11-28 2010-11-28 Universal clamping mechanism for bolt/nut mechanical test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105736032A CN102012345A (en) 2010-11-28 2010-11-28 Universal clamping mechanism for bolt/nut mechanical test

Publications (1)

Publication Number Publication Date
CN102012345A true CN102012345A (en) 2011-04-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105736032A Pending CN102012345A (en) 2010-11-28 2010-11-28 Universal clamping mechanism for bolt/nut mechanical test

Country Status (1)

Country Link
CN (1) CN102012345A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494946A (en) * 2011-11-28 2012-06-13 芜湖市中兴机械技术开发有限公司 Tensile strength test apparatus for screw members
CN102928291A (en) * 2012-10-25 2013-02-13 同济大学 Bolt fixture structure for mechanical properties of bolts and testing device
CN103115815A (en) * 2013-01-21 2013-05-22 吉林中航航空发动机维修有限责任公司 Jig for testing notch sensitivity of bolt
CN103837405A (en) * 2013-10-31 2014-06-04 贵州航天新力铸锻有限责任公司 Universal simple puller for high-temperature and normal-temperature mechanical tensile experiments
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
CN105388003A (en) * 2015-10-16 2016-03-09 西安航空动力股份有限公司 Engine guiding blade assembly screw cap thrust force measuring tool and measuring method thereof
CN106926158A (en) * 2015-12-30 2017-07-07 中核北方核燃料元件有限公司 A kind of fuel slab adhesion extension test frock
CN107271261A (en) * 2017-06-22 2017-10-20 中国船舶重工集团公司第七二五研究所 A kind of servicing unit of fastener tension test in kind and the method tested with it
CN107505194A (en) * 2017-08-10 2017-12-22 安徽六方重联机械股份有限公司 A kind of bolt tension test fixture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005121617A (en) * 2003-10-20 2005-05-12 Daicel Chem Ind Ltd High-speed tensile tester
CN2784904Y (en) * 2004-12-14 2006-05-31 尚廷东 Machine for testing mechanical property of steel pipe scaffold fastener
CN100507503C (en) * 2006-07-14 2009-07-01 清华大学 Single-axle double-direction symmetric stretching experimental machine
CN201653796U (en) * 2010-02-10 2010-11-24 安徽鸿路钢结构(集团)股份有限公司 Tensile test fixture
CN201945501U (en) * 2010-11-28 2011-08-24 贵州航天新力铸锻有限责任公司 General clamping mechanism for mechanical test of bolts/nuts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005121617A (en) * 2003-10-20 2005-05-12 Daicel Chem Ind Ltd High-speed tensile tester
CN2784904Y (en) * 2004-12-14 2006-05-31 尚廷东 Machine for testing mechanical property of steel pipe scaffold fastener
CN100507503C (en) * 2006-07-14 2009-07-01 清华大学 Single-axle double-direction symmetric stretching experimental machine
CN201653796U (en) * 2010-02-10 2010-11-24 安徽鸿路钢结构(集团)股份有限公司 Tensile test fixture
CN201945501U (en) * 2010-11-28 2011-08-24 贵州航天新力铸锻有限责任公司 General clamping mechanism for mechanical test of bolts/nuts

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102494946A (en) * 2011-11-28 2012-06-13 芜湖市中兴机械技术开发有限公司 Tensile strength test apparatus for screw members
CN102928291A (en) * 2012-10-25 2013-02-13 同济大学 Bolt fixture structure for mechanical properties of bolts and testing device
CN102928291B (en) * 2012-10-25 2014-11-05 同济大学 Bolt fixture structure for mechanical properties of bolts and testing device
CN103115815A (en) * 2013-01-21 2013-05-22 吉林中航航空发动机维修有限责任公司 Jig for testing notch sensitivity of bolt
CN103837405A (en) * 2013-10-31 2014-06-04 贵州航天新力铸锻有限责任公司 Universal simple puller for high-temperature and normal-temperature mechanical tensile experiments
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
CN105388003A (en) * 2015-10-16 2016-03-09 西安航空动力股份有限公司 Engine guiding blade assembly screw cap thrust force measuring tool and measuring method thereof
CN106926158A (en) * 2015-12-30 2017-07-07 中核北方核燃料元件有限公司 A kind of fuel slab adhesion extension test frock
CN107271261A (en) * 2017-06-22 2017-10-20 中国船舶重工集团公司第七二五研究所 A kind of servicing unit of fastener tension test in kind and the method tested with it
CN107505194A (en) * 2017-08-10 2017-12-22 安徽六方重联机械股份有限公司 A kind of bolt tension test fixture

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Application publication date: 20110413

C02 Deemed withdrawal of patent application after publication (patent law 2001)