CN102494947A - Welding strength test unit of projection welded threaded part and test method thereof - Google Patents
Welding strength test unit of projection welded threaded part and test method thereof Download PDFInfo
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- CN102494947A CN102494947A CN2011103840553A CN201110384055A CN102494947A CN 102494947 A CN102494947 A CN 102494947A CN 2011103840553 A CN2011103840553 A CN 2011103840553A CN 201110384055 A CN201110384055 A CN 201110384055A CN 102494947 A CN102494947 A CN 102494947A
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Abstract
The invention discloses a welding strength test unit of a projection welded threaded part, characterized in that the welding strength test unit is provided with a pressure head bolt (1) which is screwed and jointed with a projection welded nut (3), a projection welded base plate (2) is supported on the upturned opening end of a supporting sleeve (4), and the projection welded nut (3) is arranged below the projection welded base plate (2). The invention also discloses a test method used by the test unit. According to the invention, the test unit has the advantages of compact structure, convenient production, and strong versatility, and is suitable for mass production; the service life of the unit is prolonged, the test efficiency is increased, and the test cost is saved simultaneously. The preparation of chemical components only needs 1-2 h, compared with 1-2 days needed in the prior art.
Description
Technical field
The invention belongs to the technical field of mechanical component test, relate to the experimental technique of thread part, more particularly, the present invention relates to the weld strength test unit of projection welding screw element.In addition, the invention still further relates to the test method of the weld strength test unit employing of this projection welding screw element.
Background technology
In the prior art, carry out the not corresponding test frock of weld strength test of projection welding screw element, screw bolt and nut has only the chemical constitution that detects them.Its shortcoming is:
1, the chemical constitution of test material need be prepared a large amount of chemical reagent at every turn, so long cost of test period is than higher.
2, whether qualified mechanical property be to judge the important parameter of screw bolt and nut; The chemical constitution same material; Because of their mechanical property of process of thermal treatment difference has very big difference; For example the tensile strength of 45 steel annealed conditions is not less than 540MPa, and the tensile strength of cold drawn state is not less than 635MPa.
3, torque spanner can only detect the torsional property of projection welding screw bolt and nut, can not detect its vertical compressive property.
Summary of the invention
The present invention provides a kind of weld strength test unit of projection welding screw element, its objective is the weld strength that detects projection welding bolt or nut.
To achieve these goals, the technical scheme taked of the present invention is:
The weld strength test unit of projection welding screw element provided by the present invention; Be used to detect the pressure test of the weld strength of projection welding bolt or project-welding nut; Described projection welding bolt or project-welding nut are welded on the projection welding base plate; Described process unit is provided with the pressure head bolt, and described pressure head bolt and project-welding nut screw; Described projection welding base plate is supported on the openend up of bearing sleeve, and the position of described project-welding nut is below described projection welding base plate.
Described bearing sleeve is located on the testing machine worktable of omnipotent mechanical test machine.
The test method that the present invention also provides the weld strength test unit of above-described projection welding screw element to adopt is used for the pressure test to the weld strength of project-welding nut, and its goal of the invention is identical with technique scheme.
The process of this test method is:
1, at first selecting suitable pressure head bolt to screw in is welded in the threaded hole of the project-welding nut on the projection welding base plate;
2,, bearing sleeve is fixed on the testing machine worktable of omnipotent mechanical test machine through the mounting hole of bearing sleeve;
3, then mounted test exemplar of the 1st step is placed on the top of bearing sleeve;
4, select the suitable range of omnipotent mechanical test machine by test standard, on the pressure head bolt, exert pressure, read the size of test power, can judge according to standard whether the welding performance of project-welding nut is qualified simultaneously.
In addition, the test method that the present invention also provides a kind of weld strength test unit of projection welding screw element to adopt is used for the pressure test to the weld strength of projection welding bolt, and its technical scheme is:
In this test method, described pressure head bolt is the projection welding bolt, with the head replacement project-welding nut of projection welding bolt, on the projection welding bolt, exerts pressure, and detects the welding performance of projection welding bolt.
The present invention adopts technique scheme, and compact conformation is easily manufactured; Versatility is more intense, is fit to produce in enormous quantities; The serviceable life of frock is than higher; Improved test efficiency, practiced thrift experimentation cost simultaneously, doing chemical constitution in the past needs 1～2 day, just accomplishes in present 1～2 hour.
Description of drawings
Make brief description in the face of the expressed content of the accompanying drawing of this instructions and the mark among the figure down:
Fig. 1 is the bolt tension test technology apparatus structure synoptic diagram among the present invention;
Be labeled as among the figure:
1, pressure head bolt, 2, the projection welding base plate, 3, project-welding nut, 4, bearing sleeve, 5, the testing machine worktable.
Embodiment
Contrast accompanying drawing below, through the description to embodiment, specific embodiments of the invention is done further detailed explanation, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
The present invention makes for the weld strength of the mechanical property that detects bolt and nut and projection welding bolt and nut.
The of the present invention structure expressed like Fig. 1 is a kind of weld strength test unit of projection welding screw element, and its goal of the invention is the pressure test that is used to detect the weld strength of projection welding bolt or project-welding nut 3.
The technical scheme that the present invention takes is:
As shown in Figure 1, the weld strength test unit of projection welding screw element provided by the present invention, described projection welding bolt or project-welding nut 3 are welded on the projection welding base plate 2, and described process unit is provided with pressure head bolt 1, and described pressure head bolt 1 screws with project-welding nut 3; Described projection welding base plate 2 is supported on the openend up of bearing sleeve 4, and the position of described project-welding nut 3 is below described projection welding base plate 2.
Described bearing sleeve 4 is located on the testing machine worktable 5 of omnipotent mechanical test machine.
The test method that the present invention also provides the weld strength test unit of above-described projection welding screw element to adopt is used for the pressure test to the weld strength of project-welding nut 3, and its goal of the invention is identical with technique scheme.
The process of this test method is:
1, at first selecting suitable pressure head bolt 1 to screw in is welded in the threaded hole of the project-welding nut on the projection welding base plate 2;
2 mounting holes through bearing sleeve 4 are fixed on bearing sleeve 4 on the testing machine worktable 5 of omnipotent mechanical test machine;
3, then mounted test exemplar of the 1st step is placed on the top of bearing sleeve 4;
4, select the suitable range of omnipotent mechanical test machine by test standard, on pressure head bolt 1, exert pressure, test power loading direction as shown in Figure 1 is read the size of test power, can judge according to standard whether the welding performance of project-welding nut 3 is qualified simultaneously.
In addition, the test method that the present invention also provides a kind of weld strength test unit of projection welding screw element to adopt is used for the pressure test to the weld strength of projection welding bolt, and its technical scheme is:
In this test method, described pressure head bolt 1 is the projection welding bolt, with the head replacement project-welding nut 3 of projection welding bolt, on the projection welding bolt, exerts pressure, and detects the welding performance of projection welding bolt.
Adopt technique scheme, have the following advantages:
1, compact conformation, easily manufactured.
2, versatility is more intense, is fit to produce in enormous quantities.The specification manufacturing series frock that can detect nut as required satisfies the demand of test.
3, improved test efficiency, practiced thrift experimentation cost simultaneously, doing chemical constitution in the past needs 1～2 day, just accomplishes in present 1～2 hour.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (4)
1. the weld strength test unit of a projection welding screw element; Be used to detect the pressure test of the weld strength of projection welding bolt or project-welding nut (3); Described projection welding bolt or project-welding nut (3) are welded on the projection welding base plate (2); It is characterized in that: described process unit is provided with pressure head bolt (1), and described pressure head bolt (1) screws with project-welding nut (3); Described projection welding base plate (2) is supported on the openend up of bearing sleeve (4), and the position of described project-welding nut (3) is in the below of described projection welding base plate (2).
2. according to the weld strength test unit of the described projection welding screw element of claim 1, it is characterized in that: described bearing sleeve (4) is located on the testing machine worktable (5) of omnipotent mechanical test machine.
3. the test method that adopts according to the weld strength test unit of claim 1 or 2 described projection welding screw elements is used for the pressure test to the weld strength of project-welding nut (3), and it is characterized in that: the process of this test method is:
1), at first selecting suitable pressure head bolt (1) to screw in is welded in the threaded hole of the project-welding nut on the projection welding base plate (2);
2), the mounting hole through bearing sleeve 4, bearing sleeve 4 is fixed on the testing machine worktable (5) of omnipotent mechanical test machine;
3), then mounted test exemplar of the 1st step is placed on the top of bearing sleeve 4;
4), select the suitable range of omnipotent mechanical test machine, on pressure head bolt (1), exert pressure, read the size of test power, can judge according to standard whether the welding performance of project-welding nut (3) is qualified simultaneously by test standard.
4. according to the described test method of claim 3, be used for pressure test, it is characterized in that the weld strength of projection welding bolt:
In this test method, described pressure head bolt (1) is the projection welding bolt, with the head replacement project-welding nut (3) of projection welding bolt, on the projection welding bolt, exerts pressure, and detects the welding performance of projection welding bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103840553A CN102494947A (en) | 2011-11-28 | 2011-11-28 | Welding strength test unit of projection welded threaded part and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103840553A CN102494947A (en) | 2011-11-28 | 2011-11-28 | Welding strength test unit of projection welded threaded part and test method thereof |
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| CN102494947A true CN102494947A (en) | 2012-06-13 |
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| CN2011103840553A Pending CN102494947A (en) | 2011-11-28 | 2011-11-28 | Welding strength test unit of projection welded threaded part and test method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591871A (en) * | 2013-11-29 | 2014-02-19 | 上汽通用五菱汽车股份有限公司 | Device and method for detecting projection welding bolt |
| CN104111191A (en) * | 2013-04-18 | 2014-10-22 | 汉达精密电子(昆山)有限公司 | Nut drawing force test structure |
| 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 |
| CN106124301A (en) * | 2016-08-17 | 2016-11-16 | 浙江吉利控股集团有限公司 | Bolt and nut weld strength test device and method |
| CN107044938A (en) * | 2016-02-05 | 2017-08-15 | 襄阳东昇机械有限公司 | A kind of nut-welding intensity pressure testing machine |
| CN108007777A (en) * | 2017-12-06 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Moving turbine blade sawtooth hat soldering wear-resistant block tearing strength test device and method |
| CN110595904A (en) * | 2019-10-18 | 2019-12-20 | 奇瑞商用车（安徽）有限公司 | Projection welding bolt and nut welding strength detection equipment |
| CN113752183A (en) * | 2021-08-30 | 2021-12-07 | 东风模具冲压技术有限公司 | Projection welding bolt breakage detection positioning device |
| CN114112340A (en) * | 2021-11-05 | 2022-03-01 | 广州优尼冲压有限公司 | Nut strength test system |
| US11740168B2 (en) | 2020-05-11 | 2023-08-29 | Volvo Car Corporation | Quality inspection tool for projection welded fasteners |
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| DE102009036691A1 (en) * | 2009-08-07 | 2011-02-10 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Device for non-destructive testing of e.g. welding screws, has changeable checking nut connected with hand-held wrenching tool by plug-in- or snap-fit connection and sectionally fixing work piece |
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| CN202119685U (en) * | 2011-05-30 | 2012-01-18 | 上海捷众汽车冲压件有限公司 | Nail for destructive test of projection welding nut |
| CN202362208U (en) * | 2011-11-28 | 2012-08-01 | 芜湖市中兴机械技术开发有限公司 | Welding strength tester of projection-welding thread assembly |
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2011
- 2011-11-28 CN CN2011103840553A patent/CN102494947A/en active Pending
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111191A (en) * | 2013-04-18 | 2014-10-22 | 汉达精密电子(昆山)有限公司 | Nut drawing force test structure |
| CN103591871A (en) * | 2013-11-29 | 2014-02-19 | 上汽通用五菱汽车股份有限公司 | Device and method for detecting projection welding bolt |
| CN103591871B (en) * | 2013-11-29 | 2017-11-17 | 上汽通用五菱汽车股份有限公司 | Projection welding bolt detection means and detection method |
| 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 |
| CN107044938A (en) * | 2016-02-05 | 2017-08-15 | 襄阳东昇机械有限公司 | A kind of nut-welding intensity pressure testing machine |
| CN106124301A (en) * | 2016-08-17 | 2016-11-16 | 浙江吉利控股集团有限公司 | Bolt and nut weld strength test device and method |
| CN106124301B (en) * | 2016-08-17 | 2019-02-22 | 浙江吉利汽车研究院有限公司 | Bolt and nut weld strength test device and method |
| CN108007777A (en) * | 2017-12-06 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Moving turbine blade sawtooth hat soldering wear-resistant block tearing strength test device and method |
| CN110595904A (en) * | 2019-10-18 | 2019-12-20 | 奇瑞商用车（安徽）有限公司 | Projection welding bolt and nut welding strength detection equipment |
| US11740168B2 (en) | 2020-05-11 | 2023-08-29 | Volvo Car Corporation | Quality inspection tool for projection welded fasteners |
| CN113752183A (en) * | 2021-08-30 | 2021-12-07 | 东风模具冲压技术有限公司 | Projection welding bolt breakage detection positioning device |
| CN114112340A (en) * | 2021-11-05 | 2022-03-01 | 广州优尼冲压有限公司 | Nut strength test system |
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Application publication date: 20120613 |