CN104483190A - Tensile testing clamp for bolts - Google Patents
Tensile testing clamp for bolts Download PDFInfo
- Publication number
- CN104483190A CN104483190A CN201410794951.0A CN201410794951A CN104483190A CN 104483190 A CN104483190 A CN 104483190A CN 201410794951 A CN201410794951 A CN 201410794951A CN 104483190 A CN104483190 A CN 104483190A
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- China
- Prior art keywords
- bolt
- fixed seat
- lower bolster
- plate pattern
- cope match
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a tensile testing clamp for bolts. The tensile testing clamp comprises a lower fixing base, an upper fixing base, a lower mold plate and an upper mold plate, wherein the lower mold plate and the lower fixing base are detachably connected; the upper mold plate and the upper fixing base are detachably connected; threaded holes of many different models are formed in the lower mold plate; threaded holes in the lower mold plate are uniformly distributed in one circumference; grooves of many different of models are formed in the bottom of the upper mold plate; the grooves are uniformly distributed in one same circumference; the diameter of the circumference with the grooves is identical to that of the circumference with the threaded holes in the lower mold; the grooves in the upper mold plate correspond to the threaded holes in the lower mold plate. By adopting the tensile testing clamp, the defects of a conventional bolt detection device for detecting the tensile strength of bolts that the operation is tedious and the efficiency is low as a screw nut corresponding to a bolt to be detected needs to be mounted on the lower fixing base each time when a bolt of one model is detected are overcome.
Description
Technical field
The present invention relates to bolt pick-up unit field, be specifically related to a kind of bolt tensile test fixture.
Background technology
Master screw, bolt are with advantages such as its structure are simple, inexpensive, be widely used in all trades and professions, but use master screw, bolt just to need to carry out sampling Detection to its tensile strength in a large number, but general factory and enterprise does not all have master screw, bolt does not have special checkout equipment, thus cannot detect it, cause because master screw, bolt tensile strength do not meet standard-required and often make thread connection lose efficacy, under serious conditions, also likely cause security incident.Particularly for die casting factory, the equipment of use is all main equipment, and the inefficacy of any one bolt, nut all likely can bring huge loss to enterprise.But by bolt tension fixture be normally made up of upper fixed seat and lower fixed seat, upper fixed seat opens otch, is provided with expansion set in otch, and lower fixed seat is provided with chute, can place the nut of different size specification model in chute.When testing the bolt of different model, be placed in chute by the nut corresponding with bolt to be measured, the bolt head of bolt to be measured is fixed in expansion set, and the thread end of bolt to be measured is fixed in nut.Lower fixed seat is motionless, and upper fixed seat moves upward, and draws bolt to measure the stretching resistance of bolt to be measured by the device for measuring force of upper fixed seat.Existing bolt pick-up unit needs when detecting the bolt of not model to install different model nut as can be seen here, there is complex operation, inefficient defect.
Summary of the invention
The technical problem to be solved in the present invention is when detecting bolt tensile strength for existing bolt pick-up unit, the bolt often detecting a kind of model just needs to install the nut corresponding with bolt to be detected on lower fixed seat, the complex operation existed, inefficient defect, a kind of bolt tensile test fixture is provided, have simple to operate, the feature that efficiency is high.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: bolt tensile test fixture, comprise lower fixed seat, upper fixed seat, lower bolster and cope match-plate pattern, described lower bolster and lower fixed seat removably connect, described cope match-plate pattern and upper fixed seat removably connect, described lower bolster is provided with the threaded hole of multiple model, threaded hole on described lower bolster is evenly distributed on one circumferentially, the bottom of described cope match-plate pattern is provided with the groove of multiple model, described groove is evenly distributed on circumferentially same, the diameter of the circumference at described groove place is identical with the diameter of the circumference at the threaded hole place on counterdie, the groove of described cope match-plate pattern is corresponding with the threaded hole on lower bolster.
Adopt the bolt tensile test fixture in this programme, comprise upper fixed seat, lower fixed seat, cope match-plate pattern and lower bolster, lower fixed seat plays a part to connect lower bolster, simultaneously when bolt is tested, lower fixed seat fixes lower bolster, thus arrives the effect that lower bolster fixes bolt to be measured.Upper fixed seat plays a part to connect cope match-plate pattern, and when being bolt test, upper fixed seat moves upward, thus cope match-plate pattern is moved upward, and reaches the object of drawing bolt simultaneously.Lower bolster is provided with the threaded hole of Multiple Type, realizes the bolt that a template can test plurality of specifications model.Threaded hole on described lower bolster is evenly distributed on one circumferentially; The convenient setting-out in threaded hole boring, and the location of the expediently groove of template.The bottom of described cope match-plate pattern is provided with the groove of multiple model, and in the process of bolt test, the bolt head of bolt to be measured is positioned at the groove of cope match-plate pattern.The bolt to be measured of different model is arranged in different grooves.Described groove is evenly distributed on circumferentially same, the diameter of the circumference at the threaded hole place on the diameter of the circumference at described groove place and counterdie.Avoid bolt to be measured when testing, bolt also can be subject to radial power except axial tension.
Principle of work of the present invention and beneficial effect are: during concrete use this bolt tensile test fixture, first cope match-plate pattern is connected with upper fixed seat, cope match-plate pattern is made to be fixed on upper fixed seat, then lower bolster is connected with lower fixed seat, make lower bolster be fixed on lower fixed seat, then the bolt head of bolt to be measured is inserted in the groove that cope match-plate pattern matches with bolt model to be measured.The thread end of bolt to be measured is inserted in threaded hole corresponding with bolt to be measured on lower bolster.Then put on drawbench by this fixture, make lower fixed seat motionless, upper fixed seat moves up, and draws bolt to detect the tensile strength of bolt.Because lower bolster is provided with the threaded hole of multiple model, cope match-plate pattern is provided with the groove corresponding with the threaded hole on lower bolster, therefore when detecting the bolt of different model, does not need to change counterdie and patrix.The present invention has simple to operate when detecting bolt tensile strength as can be seen here, the feature that effect is high.
Further, described groove is T-slot.Facilitate the installation of bolt to be measured.
Further, be provided with spring between described lower fixed seat and lower bolster, between upper fixed seat and cope match-plate pattern, be also provided with spring.Prevent stud to be measured from being in process of the test, make because of the vibrations of equipment cope match-plate pattern or lower bolster rotate, thus affect measurement result.
Further, described lower bolster top is provided with protective cover.Avoid bolt in test process, have splashing to fly out when bolt is pulled off and hurt sb.'s feelings.
Further, described cope match-plate pattern and upper fixed seat are for being threaded, and the connection of lower bolster and lower bolster is also for being threaded, and the aperture of threaded hole that lower bolster up and down holder connects is identical with the aperture of the threaded hole that cope match-plate pattern is connected with upper fixed seat.Be threaded cope match-plate pattern for convenience detach and lower bolster.Drill bit and the screw tap of a model is only needed when processing cope match-plate pattern and lower bolster.Reduce the process time of processing cope match-plate pattern and lower bolster.
Accompanying drawing explanation
Fig. 1 is the schematic front view of bolt tensile test fixture embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: lower fixed seat 1, upper fixed seat 2, lower bolster 3, cope match-plate pattern 4, spring 5, protective cover 6, bolt to be measured 7, T-slot 8, threaded hole 9.
Embodiment is substantially as shown in Figure 1: bolt tensile test fixture, comprise lower fixed seat 1, upper fixed seat 2, lower bolster 3 and cope match-plate pattern 4, lower bolster 3 is threaded with lower fixed seat 1, cope match-plate pattern 4 is threaded with upper fixed seat 2, lower bolster 3 is provided with the threaded hole 9 of multiple model, threaded hole 9 on lower bolster 3 is evenly distributed on one circumferentially, the bottom of cope match-plate pattern 4 is provided with the T-slot 8 of multiple model, T-slot 8 is evenly distributed on circumferentially same, the diameter of the circumference at T-slot 8 place is identical with the diameter of the circumference at threaded hole 9 place on counterdie, the size of the T-slot 8 of cope match-plate pattern 4 is corresponding with the threaded hole 9 on lower bolster 3.Be provided with spring 5 between lower fixed seat 1 and lower bolster 3, between upper fixed seat 2 and cope match-plate pattern 4, be also provided with spring 5.Lower bolster 3 top is provided with protective cover 6.Cope match-plate pattern 4 and upper fixed seat 2 are for being threaded, and the connection of lower bolster 3 and lower bolster 3 is also for being threaded, and the aperture of threaded hole 9 that lower bolster 3 up and down holder 1 connects is identical with the aperture of the threaded hole 9 that upper fixed seat 2 is connected with cope match-plate pattern 4.
During concrete this bolt of use tensile test fixture, first cope match-plate pattern 4 is connected with upper fixed seat 2, cope match-plate pattern 4 is made to be fixed on upper fixed seat 2, then lower bolster 3 is connected with lower fixed seat 1, make lower bolster 3 be fixed on lower fixed seat 1, then the bolt head of bolt 7 to be measured is inserted in the T-slot 8 that cope match-plate pattern 4 matches with bolt 7 model to be measured.The thread end of bolt 7 to be measured is inserted in threaded hole 9 corresponding with bolt 7 to be measured on lower bolster 3.Then put on drawbench by this fixture, make lower fixed seat 1 motionless, upper fixed seat 2 moves up, and detects the tensile strength of bolt.Because lower bolster 3 is provided with the threaded hole 9 of multiple model, cope match-plate pattern 4 is provided with the T-slot 8 corresponding with the threaded hole 9 on lower bolster 3, therefore when detecting the bolt of different model, does not need to change lower bolster 3 and cope match-plate pattern 4.The present invention has simple to operate when detecting bolt tensile strength as can be seen here, the feature that effect is high.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect the practicality of effect of the invention process and invention.
Claims (5)
1. bolt tensile test fixture, it is characterized in that: comprise lower fixed seat, upper fixed seat, lower bolster and cope match-plate pattern, described lower bolster and lower fixed seat removably connect, described cope match-plate pattern and upper fixed seat removably connect, described lower bolster is provided with the threaded hole of multiple model, threaded hole on described lower bolster is evenly distributed on one circumferentially, the bottom of described cope match-plate pattern is provided with the groove of multiple model, described groove is evenly distributed on circumferentially same, the diameter of the circumference at described groove place is identical with the diameter of the circumference at the threaded hole place on counterdie, the groove of described cope match-plate pattern is corresponding with the threaded hole on lower bolster.
2. bolt tensile test fixture according to claim 1, is characterized in that: described groove is T-slot.
3. bolt tensile test fixture according to claim 2, is characterized in that: be provided with spring between described lower fixed seat and lower bolster, be also provided with spring between upper fixed seat and cope match-plate pattern.
4. bolt tensile test fixture according to claim 3, is characterized in that: described lower bolster top is provided with protective cover.
5. bolt tensile test fixture according to claim 4, it is characterized in that: described cope match-plate pattern and upper fixed seat are for being threaded, the connection of lower bolster and lower bolster is also for being threaded, and the aperture of threaded hole that lower bolster up and down holder connects is identical with the aperture of the threaded hole that cope match-plate pattern is connected with upper fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794951.0A CN104483190A (en) | 2014-12-20 | 2014-12-20 | Tensile testing clamp for bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794951.0A CN104483190A (en) | 2014-12-20 | 2014-12-20 | Tensile testing clamp for bolts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104483190A true CN104483190A (en) | 2015-04-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410794951.0A Pending CN104483190A (en) | 2014-12-20 | 2014-12-20 | Tensile testing clamp for bolts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104483190A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259030A (en) * | 2015-11-16 | 2016-01-20 | 浙江工业大学 | Chuck mechanism special for interrupted creep test |
| 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 |
| CN109142210A (en) * | 2018-06-29 | 2019-01-04 | 浙江工业大学 | A kind of mold, preparation method and application method measuring coating micro-pill turgor pressure |
| CN113358475A (en) * | 2021-06-25 | 2021-09-07 | 北京无线电测量研究所 | Device and method for testing pulling-out force of dot matrix material bolt hole |
-
2014
- 2014-12-20 CN CN201410794951.0A patent/CN104483190A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259030A (en) * | 2015-11-16 | 2016-01-20 | 浙江工业大学 | Chuck mechanism special for interrupted creep test |
| 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 |
| CN109142210A (en) * | 2018-06-29 | 2019-01-04 | 浙江工业大学 | A kind of mold, preparation method and application method measuring coating micro-pill turgor pressure |
| CN113358475A (en) * | 2021-06-25 | 2021-09-07 | 北京无线电测量研究所 | Device and method for testing pulling-out force of dot matrix material bolt hole |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |
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| WD01 | Invention patent application deemed withdrawn after publication |