CN207036557U - Pipe fitting impact test fixture - Google Patents
Pipe fitting impact test fixture Download PDFInfo
- Publication number
- CN207036557U CN207036557U CN201720648321.1U CN201720648321U CN207036557U CN 207036557 U CN207036557 U CN 207036557U CN 201720648321 U CN201720648321 U CN 201720648321U CN 207036557 U CN207036557 U CN 207036557U
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- pipe fitting
- rotating disk
- base
- impact test
- test fixture
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Abstract
The utility model discloses a kind of pipe fitting impact test fixture, including discoid base, the middle part of the base lower surface is provided with positioning boss, the base upper surface edge is provided with the positive stop lug boss of multiple circle ring array arrangements, the medial surface of the positive stop lug boss is arc surface, also include being placed in the base upper surface and the rotating disk concentric with the base, the rotating disk outer peripheral face is slidably connected with the positive stop lug boss medial surface, also include the gland for being supported on the positive stop lug boss upper surface, the gland is in annular shape, also include circle ring array and be arranged in the multiple gripping blocks that can be slided below the gland and radially, the lower surface of the gripping block and the upper surface of the rotating disk are provided with the helical structure that can cooperatively form screw pair, on the outer peripheral face of the rotating disk circumferentially-spaced multiple jacks are provided with along its.Fixture of the present utility model can clamp test specimen, prevent inclination unstability of the test specimen in Collapse of Concrete caused by experimental condition and error influence, and improve the success rate and Efficiency of experiment.
Description
Technical field
A kind of fixture is the utility model is related to, more particularly to a kind of pipe fitting impact test fixture.
Background technology
Thin-walled tubes structure has important application in vehicle energy absorption box and other materials energy-absorbing field, by entering to it
Row shock-testing is ground so as to obtain the energy-absorbing feature of different structure and deformation pattern to the crash-worthiness for carrying out different thin-walled tubular constructions
Studying carefully has important guiding and checking meaning.The mechanical property that different structure thin-wall pipe is determined by impact test is that evaluation is such
The important method of pipe fitting crash-worthiness.The method for generally carrying out such experiment is that experiment pipe fitting is vertically put in into compressed platform base
On, it is risen or is declined with the collision of platform other end so that its conquassation, obtains mechanical curves.Most of experiments
Compression test platform is common plane platform used by machine, and this test method, which has the drawback that, can not simulate true work
Condition, i.e. compressed platform base is freely without restrained conditions.In addition when the pipe fitting relatively large to some draw ratios is tested
Easy run-off the straight unstability bending, so as to which the true mechanical characteristic of structure and material can not be obtained.These are due to testing equipment bar
Part imperfection and caused by experimental design defect have a strong impact on research to such pipe fitting mechanical property.
Utility model content
The utility model provides a kind of pipe fitting impact test fixture, can effective clamp assay pipe fitting, avoid pipe fitting
In impact test, run-off the straight unstability is bent.Technical scheme is used by the utility model solves its technical problem：
A kind of pipe fitting impact test fixture, including discoid base, the middle part of the base lower surface are provided with convex
Platform, the base upper surface edge are provided with the positive stop lug boss of multiple circle ring array arrangements, and the medial surface of the positive stop lug boss is circular arc
Face, in addition to the base upper surface and the rotating disk concentric with the base are placed in, the rotating disk outer peripheral face and the positive stop lug boss medial surface
Sliding connection, in addition to the gland of the positive stop lug boss upper surface is supported on, the gland is in annular shape, in addition to circle ring array
It is arranged in the multiple gripping blocks that can be slided below the gland and radially, the lower surface of the gripping block and the upper surface of the rotating disk
Provided with the helical structure that can cooperatively form screw pair, circumferentially-spaced multiple jacks are provided with along its on the outer peripheral face of the rotating disk；Turn
Moving the rotating disk can make gripping block clamp or unclamp pipe fitting.
Among one preferred embodiment：Also include the multiple balls being arranged between the rotating disk and the base, these balls are in
Circle ring array is arranged, the disk lower surface and the base upper surface to should ball be provided with groove.
Among one preferred embodiment：Also include spacing circle, the spacing circle to should ball be provided with circular hole, the circular hole set
The firmly ball；The disk lower surface and the base upper surface to should spacing circle be provided with accepting groove.
Among one preferred embodiment：The edge of the accepting groove is provided with chamfering.
Among one preferred embodiment：One end that the gripping block is used to clamp pipe fitting is provided with floor, in addition to is fixed on the rib
Clamping head of the plate towards pipe fitting side.
Among one preferred embodiment：The floor is in arc surface backwards to the side of pipe fitting, and the gripping block is slid in and out to maximum
During the limit, the floor is pressed against on the rotating disk inner peripheral surface backwards to the side of pipe fitting.
Among one preferred embodiment：The clamping head is vulcanie, the clamping head towards the side of pipe fitting in circular arc and
Middle part is provided with counterbore.
Among one preferred embodiment：The floor is located at the bottom of the gripping block end face, and the top of the gripping block end face is passed through
Chamfering forms inclined-plane.
Among one preferred embodiment：The lower surface of the gland to should gripping block be provided with guide pad, guide pad, which is provided with, to be slided
Groove, the side wall of the chute are provided with limit card slot；The gripping block is slidably disposed among the chute, the side of the gripping block
Provided with raised line, the raised line is embedded into the limit card slot.
Among one preferred embodiment：The base upper surface is provided with the different locating slot of multiple diameters, and these locating slots are with being somebody's turn to do
Base is arranged concentrically.
Compared with background technology, it has the following advantages that the technical program：
1. the positioning boss below the base can be fastened by bolts with experiment machine platform locating slot, fixture is improved in height
Stability under crushing force, prevent the platform caused by test specimen unstability from sliding.The gripping block can be made radially by rotating the rotating disk
Upper slip, so as to effectively clamp test specimen, reach the effect of simulation actual condition.Fixture of the present utility model can clamp test specimen,
Prevent inclination unstability of the test specimen in Collapse of Concrete caused by experimental condition and error influence, improve experiment success rate and
Efficiency.Fixture is applicable to the impact test under the various workings such as quasistatic, dynamic impulsion and varied angle inclined impact,
It is applied widely.
2. simple in construction, assembling is easy, and fixture is installed to convenient and swift on testing machine.It can be operated when in use by handle
Test specimen is unloaded rapidly, replaced and clamped by the rotating disk, improves test efficiency.
3. such as circular, square, polygon or irregular contour, it be able to will be clamped according to the test specimen outline of different structure
Head is processed into the profile most to be fitted with test specimen and is replaced, and can be widely used in the test specimen of different outlines, it more can
It is stable to clamp test specimen, and indentation will not be caused to influence test specimen.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 depicts the schematic perspective view of the utility model pipe fitting impact test fixture.
Fig. 2 depicts the schematic cross-sectional view of the fixture of pipe fitting impact test shown in Fig. 1.
Fig. 3 depicts the schematic perspective view of the base of the fixture of pipe fitting impact test shown in Fig. 1.
Fig. 4 depicts the schematic perspective view of the rotating disk of the fixture of pipe fitting impact test shown in Fig. 1.
Fig. 5 depicts the spacing collar of the fixture of pipe fitting impact test shown in Fig. 1 and the schematic perspective view of ball.
Fig. 6 depicts the schematic perspective view of the gland of the fixture of pipe fitting impact test shown in Fig. 1.
Fig. 7 depicts the schematic perspective view of the gripping block of the fixture of pipe fitting impact test shown in Fig. 1.
Embodiment
It refer to Fig. 1 to Fig. 7, a kind of pipe fitting impact test fixture of the present utility model, including：Discoid base
10, the middle part of the lower surface of base 10 is provided with positioning boss 12, and the positioning boss 12 is used to lock in testing machine hoistable platform,
The side of positioning boss 12 is provided with keyway, is held out against by bolt in hoistable platform locating slot below testing machine.The base
10 upper surfaces edge are provided with the positive stop lug boss 14 of multiple circle ring array arrangements, and the medial surface of the positive stop lug boss 14 is arc surface；
Also include being placed in the upper surface of base 10 and the rotating disk 20 concentric with the base, the outer peripheral face of rotating disk 20 with the positive stop lug boss 14
Side is slidably connected；Also include the gland 30 for being supported on the upper surface of positive stop lug boss 14, the gland 30 is in annular shape；Also wrap
Include circle ring array and be arranged in the lower section of the gland 30 and the multiple gripping blocks 40 that can radially slide, the lower surface of the gripping block and
The upper surface of the rotating disk 20 is provided with the helical structure 50 that can cooperatively form screw pair, and first direction, which rotates the rotating disk 20, can make this
Gripping block 40 is moved so as to clamp pipe fitting towards the gland center, and second direction, which rotates the rotating disk 20, can make the gripping block 40 remote
Pipe fitting is unclamped in gland center movement.On the outer peripheral face of the rotating disk 20 circumferentially-spaced multiple jacks 22, the jack 22 are provided with along its
Handle 60 can be facilitated to insert, can easily promote the rotating disk 20 to rotate using handle 60.
Also include the multiple balls 70 being arranged between the rotating disk 20 and the base 10, these balls 70 are arranged in circle ring array
Cloth, the lower surface of rotating disk 20 and the upper surface of base 10 to should ball 70 be provided with groove, the ball 70 can make the rotating disk 20
Rotation is easier.Also include spacing circle 80, the spacing circle 80 to should ball 70 be provided with circular hole, the circular hole entangles the ball
70.The lower surface of rotating disk 20 and the upper surface of base 10 to should spacing circle be provided with accepting groove, the spacing circle 80 is arranged on
In the accepting groove.Preferably, the edge of the accepting groove is provided with chamfering.
One end that the gripping block 40 is used to clamp pipe fitting is provided with floor 42.Also include being fixed on the floor 42 towards pipe fitting one
The clamping head 90 of side.The clamping head 90 is vulcanie, and the clamping head 90 is provided with towards the side of pipe fitting in circular arc and middle part
Counterbore 92, the counterbore 92 can conveniently lock bolt, prevent bolt from interfering with pipe fitting.The floor 42 is located at the end face of gripping block 40
Bottom, the top of the end face of gripping block 40 forms inclined-plane 44 by chamfering, and the inclined-plane 44, which can be formed, allows bit space, convenient to see
Examine the jam of test specimen.The floor 40 is in arc surface backwards to the side of pipe fitting, and the gripping block 40 is slid in and out to greatest limit
When, the floor 40 is pressed against on the inner peripheral surface of rotating disk 20 backwards to the side of pipe fitting.
The lower surface of the gland 30 to should gripping block 40 be provided with guide pad 32, guide pad 32 is provided with chute 322, the cunning
The side wall of groove 322 is provided with limit card slot 324；The gripping block 40 is slidably disposed among the chute 322, the gripping block 40
Side be provided with raised line 46, the raised line 46, which slides, to be embedded into the limit card slot 324.
The upper surface of base 10 is provided with the different locating slot of multiple diameters, and these locating slots are arranged concentrically with the base 10,
The locating slot can be used for pipe fitting is positioned on the base 10 rapidly.
During experiment, first the locating convex block 12 of base 10 of fixture is inserted in the general fixture mounting groove of testing machine, and passes through
Bolt fastens.In specifically used clamp test specimen, two handles 60 should be inserted to the jack 22 of rotating disk 20 first, with the inverse time
Pin direction makes gripping block 40 be moved to outermost end by rotating disk 20 is rotated.Then test specimen is put at the center of clamp base 10, and again
With clockwise direction rotary turnplate 20 so that clamping head 90 firmly can clamp test specimen.
It is described above, only the utility model preferred embodiment, therefore the utility model implementation can not be limited according to this
Scope, i.e., the equivalent changes and modifications made according to the utility model patent scope and description, it is new all should still to belong to this practicality
In the range of type covers.
Claims (10)
1. a kind of pipe fitting impact test fixture, including discoid base, the middle part of the base lower surface is provided with positioning boss,
It is characterized in that：The base upper surface edge is provided with the positive stop lug boss of multiple circle ring array arrangements, the inner side of the positive stop lug boss
Face is arc surface, in addition to is placed in the base upper surface and the rotating disk concentric with the base, the rotating disk outer peripheral face and the limit convex
Platform medial surface is slidably connected, in addition to is supported on the gland of the positive stop lug boss upper surface, and the gland is in annular shape, in addition to
Circle ring array is arranged in the multiple gripping blocks that can be slided below the gland and radially, the lower surface of the gripping block and the rotating disk
Upper surface be provided with and can cooperatively form the helical structure of screw pair, on the outer peripheral face of the rotating disk along its it is circumferentially-spaced be provided with it is multiple
Jack；Rotating the rotating disk can make gripping block clamp or unclamp pipe fitting.
A kind of 2. pipe fitting impact test fixture according to claim 1, it is characterised in that：Also include being arranged on the rotating disk
Multiple balls between the base, these balls are arranged in circle ring array, and the disk lower surface is corresponding with the base upper surface
The ball is provided with groove.
A kind of 3. pipe fitting impact test fixture according to claim 2, it is characterised in that：Also include spacing circle, should
Spacing circle to should ball be provided with circular hole, the circular hole entangles the ball；The disk lower surface and the base upper surface are to should
Spacing circle is provided with accepting groove.
A kind of 4. pipe fitting impact test fixture according to claim 3, it is characterised in that：The edge of the accepting groove is provided with
Chamfering.
A kind of 5. pipe fitting impact test fixture according to claim 1, it is characterised in that：The gripping block, which is used to clamp, manages
One end of part is provided with floor, in addition to is fixed on the floor towards the clamping head of pipe fitting side.
A kind of 6. pipe fitting impact test fixture according to claim 5, it is characterised in that：The floor backwards to pipe fitting one
Side is in arc surface, and when the gripping block is slid in and out to greatest limit, the floor is pressed against the rotating disk inner circumferential backwards to the side of pipe fitting
On face.
A kind of 7. pipe fitting impact test fixture according to claim 6, it is characterised in that：The clamping head is hard rubber
Glue, the clamping head are provided with counterbore towards the side of pipe fitting in circular arc and middle part.
A kind of 8. pipe fitting impact test fixture according to claim 5 or 6 or 7, it is characterised in that：The floor is located at should
The bottom of gripping block end face, the top of the gripping block end face form inclined-plane by chamfering.
A kind of 9. pipe fitting impact test fixture according to claim 8, it is characterised in that：The lower surface of the gland is corresponding
The gripping block is provided with guide pad, and guide pad is provided with chute, and the side wall of the chute is provided with limit card slot；The gripping block is slidably
Ground is arranged among the chute, and the side of the gripping block is provided with raised line, and the raised line is embedded into the limit card slot.
A kind of 10. pipe fitting impact test fixture according to claim 1, it is characterised in that：The base upper surface is provided with
The different locating slot of multiple diameters, these locating slots are arranged concentrically with the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648321.1U CN207036557U (en) | 2017-06-06 | 2017-06-06 | Pipe fitting impact test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648321.1U CN207036557U (en) | 2017-06-06 | 2017-06-06 | Pipe fitting impact test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036557U true CN207036557U (en) | 2018-02-23 |
Family
ID=61469601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720648321.1U Active CN207036557U (en) | 2017-06-06 | 2017-06-06 | Pipe fitting impact test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101879A (en) * | 2017-06-06 | 2017-08-29 | 华侨大学 | A kind of pipe fitting impact test fixture |
| CN115389326A (en) * | 2022-08-26 | 2022-11-25 | 南通星球石墨股份有限公司 | Heat exchange tube pressure testing frock with angle modulation function |
-
2017
- 2017-06-06 CN CN201720648321.1U patent/CN207036557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101879A (en) * | 2017-06-06 | 2017-08-29 | 华侨大学 | A kind of pipe fitting impact test fixture |
| CN107101879B (en) * | 2017-06-06 | 2023-05-26 | 华侨大学 | Clamp for pipe fitting impact test |
| CN115389326A (en) * | 2022-08-26 | 2022-11-25 | 南通星球石墨股份有限公司 | Heat exchange tube pressure testing frock with angle modulation function |
| CN115389326B (en) * | 2022-08-26 | 2023-08-25 | 南通星球石墨股份有限公司 | Heat exchange tube pressure testing tool with angle adjusting function |
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