CN203672711U - Testing fixture for mechanical properties of bolt - Google Patents
Testing fixture for mechanical properties of bolt Download PDFInfo
- Publication number
- CN203672711U CN203672711U CN201320855391.6U CN201320855391U CN203672711U CN 203672711 U CN203672711 U CN 203672711U CN 201320855391 U CN201320855391 U CN 201320855391U CN 203672711 U CN203672711 U CN 203672711U
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- Prior art keywords
- bolt
- outer sleeve
- fixture
- test
- screw thread
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Abstract
The utility model discloses a testing fixture for mechanical properties of a bolt. The testing fixture comprises a nut wedged cushion, a threaded clamp and an outer sleeve, wherein the nut wedged cushion is pancake shaped, and a through hole for allowing the bolt to pass through is formed in the center of the nut wedged cushion; the threaded clamp comprises a pancake shaped clamping end and a cylindrical fixing end, the clamping end and the fixing end are coaxial, and a screw hole is formed in the axle center position of the fixing end; the outer sleeve comprises an installation end and a test end, the test end is provided with an accommodating slot and a spacing bayonet, the accommodating slot is used for the placement of the nut wedged cushion and the clamping end of the threaded clamp, and the width of the spacing bayonet is smaller than the diameter of the nut wedged cushion and the diameter of the clamping end of the threaded clamp. According to the test fixture for the mechanical properties of the bolt, the operation process of mounting and dismounting a bolt sample is convenient, the probability of damage is low, the test fixture is firm and durable, and due to the design of a protecting cover, risk conditions of bolt sample breaking, splashing and the like are prevented from occurring in a test process.
Description
Technical field
The utility model relates to a kind of bolt mechanical test fixture, belongs to building materials performance test apparatus technical field.
Background technology
Bolt is applied in building field needs strict its performance quality of controlling, thereby ensures the security in building operation and use procedure.Tensile strength is one of main performance index of bolt, its test method is to use fixture one fixing on the nut of bolt one end, the screw thread of the bolt other end is coordinated with the fixture two with screw, then fixture one and fixture two are fixed to and on tension tester, carry out tensile test.In the prior art, above-mentioned bolt mechanical test fixture used there is no unified standard, and nipper of the prior art exists following not enough conventionally: 1, the operating process of installation and demounting bolt sample is more loaded down with trivial details, causes test efficiency low; 2, existing fixture machinery undercapacity, fragile, sturdy and durable not after repeatedly using; 3, in process of the test, easily there is the bolt sample broken end dangerous situation such as splash.
Utility model content
The deficiency that the utility model exists for prior art just, provides a kind of bolt mechanical test fixture, meets actual operation requirements.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of bolt mechanical test fixture, comprising: nut wheel chock, screw thread fixture, outer sleeve; Described nut wheel chock is that pie and circle centre position are provided with the through hole passing for bolt; Described screw thread fixture comprises bare terminal end and the columned stiff end of pie, and described bare terminal end and described stiff end shaft core position coaxial and described stiff end is provided with screw; Described outer sleeve comprises installation end and test end, described test end is provided with standing groove and spacing bayonet socket, described standing groove is for placing the bare terminal end of described nut wheel chock and described screw thread fixture, and the width of described spacing bayonet socket is less than the diameter of the diameter of described nut wheel chock and the bare terminal end of described screw thread fixture.
As the improvement of technique scheme, installation end one end of described outer sleeve connects the test end of described outer sleeve, and the installation end other end of described outer sleeve is provided with limited cap.
As the improvement of technique scheme; also comprise protective sleeve; described protective sleeve is the cylinder-like structure with a bottom surface; the side of described protective sleeve is provided with installing port; the bottom surface of described protective sleeve is provided with and connects the mounting groove of described installing port, the width of described mounting groove be greater than described outer sleeve installation end width and be less than the width of the test end of described outer sleeve.
As the improvement of technique scheme, also comprise take-up clip, the installation end of described outer sleeve is cylindrical, and described take-up clip is provided with the arc tiger's jaw identical with described installation end radius, described take-up clip is also provided with wedge cutting, and described wedge cutting is perpendicular to the axis of described outer sleeve.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Bolt mechanical test fixture described in the utility model has the following advantages: the operating process of (1), installation and demounting bolt sample is convenient, and test efficiency is high; (2), designed structure has higher physical strength, not fragile, sturdy and durable; (3), go for the test puller system of various models, be applicable to national standard and the industry standard of corresponding bolt performance test; (4), owing to there being the effect of protective sleeve, in process of the test, there will not be the bolt sample broken end dangerous situation such as splash; (5), this fixture usable range is extensive, not only can apply to bolt mechanical test in kind, and can apply to during attachment weld drag load etc. that nut guarantees load, bolt sphere and bolt tension force load and shrouding or conehead and steel pipe tests; (6), temperature requirement is low, substantially can meet all kinds of testing requirementss; (7), without any pollution and corrosivity, to human body without any harmfulness.The bolt mechanical test fixture that the utility model provides provides effective technical support to the performance test of bolt.
Accompanying drawing explanation
Fig. 1 is the structural representation of outer sleeve in bolt mechanical test fixture described in the utility model;
Fig. 2 is the structural representation of nut wheel chock and screw clamp tool joint bolt sample in bolt mechanical test fixture described in the utility model;
Fig. 3 is the structural representation of protective sleeve in bolt mechanical test fixture described in the utility model;
Fig. 4 is the structural representation of take-up clip in bolt mechanical test fixture described in the utility model;
Integral assembling structure schematic diagram when Fig. 5 is bolt mechanical test fixture test described in the utility model;
Fig. 6 is the cross-sectional view of A-A in Fig. 5;
Fig. 7 is the cross-sectional view of B-B in Fig. 5;
Fig. 8 is the cross-sectional view of C-C in Fig. 5;
Fig. 9 is the cross-sectional view of D-D in Fig. 5.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figures 1 to 9, be bolt mechanical test clamp structure schematic diagram described in the utility model.Bolt mechanical test fixture described in the utility model, comprising: nut wheel chock 1, screw thread fixture 2, outer sleeve 3; Described nut wheel chock 1 is that pie and circle centre position are provided with the through hole passing for bolt; Described screw thread fixture 2 comprises bare terminal end 21 and the columned stiff end 22 of pie, and described bare terminal end 21 and described stiff end 22 shaft core position coaxial and described stiff end 22 is provided with screw; Described outer sleeve 3 comprises installation end 31 and test end 32, described test end 32 is provided with standing groove 321 and spacing bayonet socket 322, described standing groove 321 is for placing the bare terminal end 21 of described nut wheel chock 1 and described screw thread fixture 2, and the width of described spacing bayonet socket 322 is less than the diameter of the diameter of described nut wheel chock 1 and the bare terminal end 21 of described screw thread fixture 2.Further, installation end 31 one end of described outer sleeve 3 connect the test end 32 of described outer sleeve 3, and installation end 31 other ends of described outer sleeve 3 are provided with limited cap 311.Again further; also comprise protective sleeve 4; described protective sleeve 4 is for having the cylinder-like structure of a bottom surface 41; the side 42 of described protective sleeve 4 is provided with installing port 421; the bottom surface 41 of described protective sleeve 4 is provided with and connects the mounting groove 411 of described installing port 421, the width of described mounting groove 411 be greater than described outer sleeve 3 installation end 31 width and be less than the width of the test end 32 of described outer sleeve 3.Further, also comprise take-up clip 5, the installation end 31 of described outer sleeve 3 is cylindrical, and described take-up clip 5 is provided with the arc tiger's jaw 51 identical with described installation end 31 radiuses, described take-up clip 5 is also provided with wedge cutting 52, and described wedge cutting 52 is perpendicular to the axis of described outer sleeve 3.
The using method of above-mentioned bolt mechanical test fixture: (1), get a bolt, first nut wheel chock 1 is arrived to nut position through screw thread and the screw portion of bolt, and then the threaded portion of bolt is screwed in screw thread fixture 2, screw-in length should meet the requirement of corresponding standard.(2), put into respectively two outer sleeves 3 by what install the nut wheel chock 1 of bolt sample and screw thread fixture 2, put respectively two protective sleeves 4.(3), tiger's jaw fixture 5 is placed in by wedge cutting 52 on the chuck of testing machine 6; again the distance of leaving office on testing machine 6 is adjusted to distance between mounted two outer sleeves 3 suitable; the installation end of mounted outer sleeve 3 31 is put in the arc tiger's jaw 51 of tiger's jaw fixture 5; again adjusting on testing machine 6 distance of leaving office, that whole outer sleeve 3 and protective sleeve 4 are installed is intact, meets the technical requirement of regulation and stipulation.(4), fixture, testing machine 6 ranges etc. ready after, open testing machine 6 loading modes, the loading velocity providing according to standard carries out bolt mechanical test in kind, until off-test.
While test for the second time, only need to adjust the distance of leaving office on testing machine 6, make it to meet the technical requirement of regulation and stipulation; Then rotate protective sleeve 4, standing groove 321 is overlapped with installing port 421, therefrom take out nut wheel chock 1 and screw thread fixture 2, take off the complete sample of test and new sample is installed; After installing, nut wheel chock 1 and screw thread fixture 2 are put into respectively to the standing groove 321 of two outer sleeves 3, rotation protective sleeve 4, staggers installing port 421 and standing groove 321 completely, makes the side 42 of protective sleeve 4 cover standing groove 321; Then can repeat that above-mentioned steps (4) is carried out for the second time and even the N time (N is greater than two integer) test.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (4)
1. a bolt mechanical test fixture, is characterized in that, comprising: nut wheel chock (1), screw thread fixture (2), outer sleeve (3); Described nut wheel chock (1) is that pie and circle centre position are provided with the through hole passing for bolt; Described screw thread fixture (2) comprises bare terminal end (21) and the columned stiff end (22) of pie, and described bare terminal end (21) and described stiff end (22) shaft core position coaxial and described stiff end (22) is provided with screw; Described outer sleeve (3) comprises installation end (31) and test end (32), described test end (32) is provided with standing groove (321) and spacing bayonet socket (322), described standing groove (321) is for placing the bare terminal end (21) of described nut wheel chock (1) and described screw thread fixture (2), and the width of described spacing bayonet socket (322) is less than the diameter of the diameter of described nut wheel chock (1) and the bare terminal end (21) of described screw thread fixture (2).
2. bolt mechanical test fixture as claimed in claim 1, it is characterized in that, installation end (31) one end of described outer sleeve (3) connects the test end (32) of described outer sleeve (3), and installation end (31) other end of described outer sleeve (3) is provided with limited cap (311).
3. bolt mechanical test fixture as claimed in claim 2; it is characterized in that; also comprise protective sleeve (4); described protective sleeve (4) is for having the cylinder-like structure of a bottom surface (41); the side (42) of described protective sleeve (4) is provided with installing port (421); the bottom surface (41) of described protective sleeve (4) is provided with the mounting groove (411) that connects described installing port (421), the width of described mounting groove (411) be greater than described outer sleeve (3) installation end (31) width and be less than the width of the test end (32) of described outer sleeve (3).
4. bolt mechanical test fixture as claimed in claim 2, it is characterized in that, also comprise take-up clip (5), the installation end (31) of described outer sleeve (3) is cylindrical, described take-up clip (5) is provided with the arc tiger's jaw (51) identical with described installation end (31) radius, described take-up clip (5) is also provided with wedge cutting (52), and described wedge cutting (52) is perpendicular to the axis of described outer sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855391.6U CN203672711U (en) | 2013-12-23 | 2013-12-23 | Testing fixture for mechanical properties of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855391.6U CN203672711U (en) | 2013-12-23 | 2013-12-23 | Testing fixture for mechanical properties of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672711U true CN203672711U (en) | 2014-06-25 |
Family
ID=50968993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320855391.6U Expired - Fee Related CN203672711U (en) | 2013-12-23 | 2013-12-23 | Testing fixture for mechanical properties of bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890980A (en) * | 2016-04-27 | 2016-08-24 | 上汽大众汽车有限公司 | Tensile test fixture and tensile test method |
-
2013
- 2013-12-23 CN CN201320855391.6U patent/CN203672711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890980A (en) * | 2016-04-27 | 2016-08-24 | 上汽大众汽车有限公司 | Tensile test fixture and tensile test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |