CN220231247U

CN220231247U - Clamping device with protection function for tensile testing machine

Info

Publication number: CN220231247U
Application number: CN202322103721.2U
Authority: CN
Inventors: 王江波; 陈海见; 张波; 宋继兰
Original assignee: Yantai Mudi Industrial Technology Co ltd
Current assignee: Yantai Mudi Industrial Technology Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2023-12-22
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a clamping device with a protective function for a tensile tester, which comprises a base, wherein four limiting rods are fixed on the top surface of the base, a fixed plate is fixedly arranged on the top surface of each of the four limiting rods, a movable plate is movably arranged on the bottom surface of each of the fixed plates, four straight rods are fixedly arranged on the top surface of each of the fixed plates, a mounting plate is fixedly arranged at the top ends of the four straight rods, and a hydraulic rod is fixedly arranged on the bottom surface of each of the mounting plates. Through lower dog and last dog that set up, rotatory stop bolt A drives spacing section of thick bamboo A and makes movable rod A back and forth movement, and movable rod A drives connecting rod A simultaneously and makes lower dog open and shut, makes it change to a suitable position, and object lower extreme fracture splash to the test personnel when preventing the test, and rotatory stop bolt B drives spacing section of thick bamboo B simultaneously and makes movable rod B back and forth movement, and movable rod B drives connecting rod B simultaneously and makes the dog open and shut, and object upper end fracture splash to the test personnel when preventing the test has increased the security of device.

Description

Clamping device with protection function for tensile testing machine

Technical Field

The utility model belongs to the technical field of tensile testing machines, and particularly relates to a clamping device with a protection function for a tensile testing machine.

Background

The tensile testing machine is also called a material tensile testing machine and a universal tensile strength testing machine, is a new generation mechanical testing device integrating the functions of computer control, automatic measurement, data acquisition, screen display and test result processing, and is mainly suitable for testing metal and nonmetal materials, such as various tests of rubber, plastics, wires and cables, optical fiber and optical cables, safety belts, leather belt composite materials, plastic profiles, waterproof coiled materials, steel pipes, copper materials, profiles, spring steel, bearing steel, stainless steel, castings, steel plates, steel belts, nonferrous metal wires, such as stretching, compression, bending, shearing, stripping, tearing, two-point extension and the like.

The tensile testing machine needs to clamp an object on a clamping device of the tensile testing machine before testing the tensile force of the object, the clamping device of the existing tensile testing machine is complex, the operation is complex, a certain influence is generated on the testing efficiency, no effective protective measures are available, and the tensile testing machine is easy to splash to cause injury to test staff when the tensile testing object is disconnected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide the clamping device with the protection function for the tensile testing machine, which solves the problems that the existing clamping device for the tensile testing machine is complex in operation, affects the testing efficiency and is easy to splash to cause injury to testing personnel when a tensile test object is disconnected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the clamping device with the protection function of the tensile testing machine comprises a base, four limit rods are fixed on the top surface of the base, a fixed plate is fixedly arranged on the top surface of the four limit rods, a movable plate is movably arranged on the bottom surface of the fixed plate, four straight rods are fixedly arranged on the top surface of the fixed plate, a mounting plate is fixedly arranged on the top ends of the four straight rods, a hydraulic rod is fixedly arranged on the bottom surface of the mounting plate, a mounting seat A is fixedly arranged on the top surface of the base, two movable grooves A are formed in the top surface of the mounting seat A, positive and negative screw threaded rods A are movably arranged in the two movable grooves A, two synchronous motors A are fixedly arranged on one side of the mounting seat A, two clamping blocks A are movably arranged on the top surface of the mounting seat A, two sliding blocks A are fixedly arranged on the bottom surfaces of the two clamping blocks A, the top surfaces of the two clamping blocks A are fixedly provided with limiting clamping plates A, the two ends of the inside of the limiting clamping plates A are hinged with connecting rods A, the outer sides of the connecting rods A are fixedly provided with lower stop blocks, one side of each limiting clamping plate A is fixedly provided with a fixed block A, one side of each fixed block A is movably provided with a limiting bolt A, the outer sides of the limiting bolts A are movably provided with limiting cylinders A, the outer sides of the limiting cylinders A are hinged with two movable rods A, the bottom surfaces of the movable plates are fixedly provided with mounting seats B, the bottom surfaces of the mounting seats B are provided with two movable grooves B, the inside of each movable groove B is movably provided with two positive and negative screw threaded rods B, one side of each mounting seat B is fixedly provided with two synchronous motors B, the bottom surfaces of each mounting seat B are movably provided with two clamping blocks B, the top surfaces of each clamping block B is fixedly provided with a sliding block B, the bottom surface fixed mounting of clamp splice B has spacing splint B, the inside both ends of spacing splint B all articulate there is connecting rod B, connecting rod B's outside fixed mounting has last dog, one side fixed mounting of connecting rod B has fixed block B, one side movable mounting of fixed block B has spacing bolt B, the outside movable mounting of gag lever post has spacing section of thick bamboo B, the outside movable mounting of spacing section of thick bamboo B has movable rod B.

Preferably, the four limit rods all movably penetrate through the bottom surface of the movable plate and extend to the bottom surface of the fixed plate.

Through above-mentioned technical scheme, the advantage lies in can restrict the motion track of fly leaf through the gag lever post, avoids the fly leaf to take place to rock and leads to the detection data inaccurate.

Preferably, the output end of the hydraulic rod movably penetrates through the top surface of the fixed plate and extends to the top surface of the movable plate.

Through above-mentioned technical scheme, advantage lies in can drive the fly leaf through the flexible of hydraulic stem and carry out tensile experiment, and the practicality is good.

Preferably, one end of the positive and negative threaded rod a movably penetrates through one side of the sliding block a and extends to the output end of the synchronous motor a, and one end of the positive and negative threaded rod B movably penetrates through one side of the sliding block B and extends to the output end of the synchronous motor B.

Through above-mentioned technical scheme, advantage lies in that start synchronous motor A drives positive and negative silk threaded rod A rotation and makes the bottom of clamp splice A with the detection thing press from both sides tightly, starts synchronous motor B simultaneously and drives positive and negative silk threaded rod B rotation and make the distance between clamp splice B reduce the top with the detection thing press from both sides tightly, has increased the stability of device.

Preferably, one ends of the two movable rods A movably penetrate through one side of the limiting clamp plate A and are hinged to one end of the connecting rod A, and one ends of the two movable rods B movably penetrate through one side of the limiting clamp plate B and are hinged to one end of the connecting rod B.

Through above-mentioned technical scheme, advantage lies in movable rod A can drive connecting rod A and make down the dog remove, can adjust the position of dog down according to detecting the object size, and movable rod B can drive connecting rod B simultaneously and make the dog remove, can adjust the position of dog according to detecting the object size, has improved the security of device.

Preferably, the connecting rod A is arc-shaped, the radian of the lower stop block is the same as that of the connecting rod A, the connecting rod B is arc-shaped, and the radian of the connecting rod B is the same as that of the upper stop block.

Through above-mentioned technical scheme, advantage lies in curved lower dog and last dog have increased the area of protection of device, avoid causing the injury to the experimenter.

Preferably, the limit cylinder A is arranged on the outer side of the limit bolt A in a threaded manner, and the limit cylinder B is arranged on the outer side of the limit bolt B in a threaded manner.

Through above-mentioned technical scheme, advantage lies in rotatory stop bolt A and stop bolt B can adjust the position of lower dog and last dog through movable rod A and movable rod B, convenient to use.

Compared with the prior art, the utility model has the beneficial effects that:

1. through mount pad A that sets up, when using, the experimenter will need to stretch the bottom of experiment object and place at mount pad A's top surface then start synchronous motor A and drive positive and negative silk threaded rod A rotation and make the distance between clamp splice A reduce and press from both sides the bottom tight with the detection object, then rotatory stop bolt A drives spacing section of thick bamboo A and makes movable rod A promote connecting rod A and remove suitable position with lower dog, then start the hydraulic rod and support the top that the movable plate lets mount pad B contact experiment object, then start synchronous motor B and drive positive and negative silk threaded rod B rotation and make the distance between clamp splice B reduce and press from both sides the top tight with the detection object, rotatory stop bolt B drives spacing section of thick bamboo B again and makes movable rod B promote connecting rod B and remove suitable position and protect, then start hydraulic rod pulling movable plate again and make mount pad B follow the high position of movable plate simultaneously and pull and carry out the tensile experiment to the object, overall structure is simple, the test efficiency of equipment has been improved.

2. Through lower dog and last dog that set up, rotatory stop bolt A drives spacing section of thick bamboo A and makes movable rod A back and forth movement, and movable rod A drives connecting rod A simultaneously and makes lower dog open and shut, makes it change to a suitable position, and object lower extreme fracture splash to the test personnel when preventing the test, and rotatory stop bolt B drives spacing section of thick bamboo B simultaneously and makes movable rod B back and forth movement, and movable rod B drives connecting rod B simultaneously and makes the dog open and shut, and object upper end fracture splash to the test personnel when preventing the test has increased the security of device.

Drawings

FIG. 1 is a schematic view of a three-dimensional appearance structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1B according to the present utility model;

FIG. 4 is a schematic top view of the present utility model;

fig. 5 is a schematic view of a bottom cross-sectional structure of the present utility model.

In the figure: 1. a base; 2. a limit rod; 3. an upper stop block; 4. a movable plate; 5. a fixing plate; 6. a straight rod; 7. a hydraulic rod; 8. a mounting plate; 9. a mounting seat A; 10. a positive and negative screw threaded rod A; 11. a clamping block A; 12. a sliding block A; 13. a synchronous motor A; 14. a lower stop block; 15. a fixed block A; 16. a connecting rod A; 17. a movable rod A; 18. a limiting cylinder A; 19. a limit bolt A; 20. a movable groove A; 21. a fixed block B; 22. a limit bolt B; 23. a limiting cylinder B; 24. a movable rod B; 25. a limiting clamping plate B; 26. a mounting base B; 27. a connecting rod B; 28. a synchronous motor B; 29. a movable groove B; 30. a limiting clamp plate A; 31. a positive and negative thread rod B; 32. a clamping block B; 33. and a sliding block B.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present utility model, are within the scope of the present utility model.

As shown in fig. 1-5, a clamping device with protection function for a tensile testing machine comprises a base 1, four limit rods 2 are fixed on the top surface of the base 1, a fixed plate 5 is fixedly arranged on the top surface of the four limit rods 2, a movable plate 4 is movably arranged on the bottom surface of the fixed plate 5, four straight rods 6 are fixedly arranged on the top surface of the fixed plate 5, a mounting plate 8 is fixedly arranged on the top end of the four straight rods 6, a hydraulic rod 7 is fixedly arranged on the bottom surface of the mounting plate 8, a mounting seat A9 is fixedly arranged on the top surface of the base 1, two movable grooves a20 are formed in the top surface of the mounting seat A9, positive and negative thread threaded rods a10 are movably arranged in the two movable grooves a20, two synchronous motors a13 are fixedly arranged on one side of the mounting seat A9, two clamping blocks a11 are movably arranged on the top surface of the mounting seat A9, two sliding blocks a12 are fixedly arranged on the bottom surfaces of the two clamping blocks a11, limit clamping plates a30 are fixedly arranged on the top surfaces of the two clamping blocks a11, the two ends of the inside of the limiting clamp plate A30 are hinged with a connecting rod A16, the outer side of the connecting rod A16 is fixedly provided with a lower stop block 14, one side of the limiting clamp plate A30 is fixedly provided with a fixed block A15, one side of the fixed block A15 is movably provided with a limiting bolt A19, the outer side of the limiting bolt A19 is movably provided with a limiting cylinder A18, the outer side of the limiting cylinder A18 is hinged with two movable rods A17, the bottom surface of the movable plate 4 is fixedly provided with a mounting seat B26, the bottom surface of the mounting seat B26 is provided with two movable grooves B29, the inside of the two movable grooves B29 is movably provided with two positive and negative wire threaded rods B31, one side of the mounting seat B26 is fixedly provided with two synchronous motors B28, the bottom surface of the mounting seat B26 is movably provided with two clamping blocks B32, the top surfaces of the two clamping blocks B32 are fixedly provided with sliding blocks B33, the bottom surface of the clamping blocks B32 is fixedly provided with limiting clamp plates B25, the two ends inside the limiting clamp plate B25 are hinged with a connecting rod B27, an upper stop block 3 is fixedly arranged on the outer side of the connecting rod B27, a fixed block B21 is fixedly arranged on one side of the connecting rod B27, a limiting bolt B22 is movably arranged on one side of the fixed block B21, a limiting cylinder B23 is movably arranged on the outer side of the limiting rod 2, and a movable rod B24 is movably arranged on the outer side of the limiting cylinder B23.

The working principle of the technical scheme is as follows:

when the device is used, an experimenter places the bottom end of an experimental object to be stretched on the top surface of the mounting seat A9, then starts the synchronous motor A13 to drive the positive and negative screw threaded rods A10 to rotate so that the distance between the clamping blocks A11 is reduced, the bottom end of the detected object is clamped, then rotates the limiting bolt A19 to drive the limiting cylinder A18 so that the movable rod A17 pushes the connecting rod A16 to move the lower stop block 14 to a proper position, then starts the hydraulic rod 7 to prop against the movable plate 4 so that the mounting seat B26 contacts the top end of the experimental object, then starts the synchronous motor B28 to drive the positive and negative screw threaded rods B31 to rotate so that the distance between the clamping blocks B32 is reduced, then rotates the limiting bolt B22 to drive the limiting cylinder B23 so that the movable rod B24 pushes the connecting rod B27 to move the upper stop block 3 to a proper position for protection, then starts the hydraulic rod 7 to pull the movable plate 4, and meanwhile the mounting seat B26 pulls the height position of the movable plate 4 so as to carry out stretching experiments on the object.

In another embodiment, as shown in fig. 1-5, four stop bars 2 each movably extend through the bottom surface of the movable plate 4 and to the bottom surface of the fixed plate 5.

The motion trail of the movable plate 4 can be limited through the limiting rod 2, and the inaccuracy of detection data caused by shaking of the movable plate 4 is avoided.

In another embodiment, as shown in fig. 1-5, the output end of the hydraulic rod 7 is movable through the top surface of the fixed plate 5 and extends to the top surface of the movable plate 4.

The movable plate 4 can be driven to carry out a stretching experiment through the extension and retraction of the hydraulic rod 7, and the practicability is good.

In another embodiment, as shown in fig. 1-5, one end of the positive and negative threaded rod a10 extends through one side of the slider a12 to the output end of the synchronous motor a13, and one end of the positive and negative threaded rod B31 extends through one side of the slider B33 to the output end of the synchronous motor B28.

And the synchronous motor A13 is started to drive the positive and negative screw threaded rods A10 to rotate so that the distance between the clamping blocks A11 is reduced to clamp the bottom end of the detection object, and the synchronous motor B28 is started to drive the positive and negative screw threaded rods B31 to rotate so that the distance between the clamping blocks B32 is reduced to clamp the top end of the detection object, so that the stability of the device is improved.

In another embodiment, as shown in fig. 1-5, one end of two movable rods a17 movably penetrates one side of the limit clamp plate a30 and is hinged to one end of the connecting rod a16, and one end of two movable rods B24 movably penetrates one side of the limit clamp plate B25 and is hinged to one end of the connecting rod B27.

The movable rod A17 can drive the connecting rod A16 to enable the lower stop block 14 to move, the position of the lower stop block 14 can be adjusted according to the size of a detected object, meanwhile, the movable rod B24 can drive the connecting rod B27 to enable the upper stop block 3 to move, the position of the upper stop block 3 can be adjusted according to the size of the detected object, and the safety of the device is improved.

In another embodiment, as shown in fig. 1-5, the connecting rod a16 is curved, the lower stopper 14 is curved in the same arc as the connecting rod a16, the connecting rod B27 is curved, and the connecting rod B27 is curved in the same arc as the upper stopper 3.

The arc-shaped lower stop block 14 and the upper stop block 3 increase the protection area of the device and avoid injuring experimental staff.

In another embodiment, as shown in fig. 1-5, a limiting cylinder a18 is threadedly mounted outside a limiting bolt a19, and a limiting cylinder B23 is threadedly mounted outside a limiting bolt B22.

The positions of the lower stop block 14 and the upper stop block 3 can be adjusted through the movable rod A17 and the movable rod B24 by rotating the limit bolt A19 and the limit bolt B22, so that the use is convenient.

The working principle and the using flow of the utility model are as follows: during the use, the experimenter will need to carry out the bottom of tensile test object and place at the top surface of mount pad A9, start synchronous motor A13 and drive positive and negative screw threaded rod A10 rotation and make the distance between clamp splice A11 reduce and press from both sides tight with the bottom of detecting the object, then rotatory stop bolt A19 drives spacing section of thick bamboo A18 and makes movable rod A17 promote connecting rod A16 and remove suitable position with lower dog 14, then start hydraulic stem 7 and support movable plate 4 and let mount pad B26 contact test object's top, then start synchronous motor B28 and drive positive and negative screw threaded rod B31 rotation and make the distance between clamp splice B32 reduce and press from both sides tight with the top of detecting the object, then rotatory stop bolt B22 drives spacing section of thick bamboo B23 and makes movable rod B24 promote connecting rod B27 and remove suitable position and protect with last dog 3, then start hydraulic stem 7 and pull movable plate 4 and make the high position of movable plate 4 carry out the pulling simultaneously and carry out tensile test to the object, overall structure is simple, the test efficiency of equipment has been improved, and the lower dog 14 and last dog 3 through setting up, rotatory stop bolt A19 drives spacing rod A18 and makes the spacing rod A17A 16 and makes the position of movable rod A16 take turn over the position of movable rod B24 and makes the position of the movable rod B24 to carry out the test object to the safety device that the front and make the test, the front and the test device that the front and back is broken when the test object is broken, the test object is simultaneously, the test device is prevented that the front and is moved to the test object is moved to the position of the front of the position of the front end is simultaneously.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tensile testing machine has clamping device of safeguard function, includes base (1), its characterized in that: four gag levers (2) are fixed on the top surface of the base (1), fixed plates (5) are fixedly arranged on the top surface of the four gag levers (2), movable plates (4) are movably arranged on the bottom surface of the fixed plates (5), four straight rods (6) are fixedly arranged on the top surface of the fixed plates (5), mounting plates (8) are fixedly arranged on the top ends of the four straight rods (6), hydraulic rods (7) are fixedly arranged on the bottom surface of the mounting plates (8), mounting seats A (9) are fixedly arranged on the top surface of the base (1), two movable grooves A (20) are formed in the top surface of the mounting seats A (9), positive and negative screw threaded rods A (10) are movably arranged in the two movable grooves A (20), two synchronous motors A (13) are fixedly arranged on one side of the mounting seats A (9), two clamping blocks A (11) are fixedly arranged on the bottom surface of the mounting plates A (8), two sliding blocks A (12) are fixedly arranged on the bottom surface of the two clamping blocks A (11), two limiting blocks A (16) are fixedly arranged on the two ends of the two clamping blocks A (16) and two limiting blocks A (30) are fixedly arranged on the two ends of the two clamping blocks A (16), one side fixed mounting of limit splint A (30) has fixed block A (15), one side movable mounting of fixed block A (15) has limit bolt A (19), the outside movable mounting of limit bolt A (19) has limit cylinder A (18), the outside of limit cylinder A (18) articulates there are two movable rod A (17), the bottom surface fixed mounting of fly leaf (4) has mount pad B (26), two movable slots B (29) have been seted up to the bottom surface of mount pad B (26), the inside movable mounting of two movable slots B (29) has two positive and negative silk threaded rod B (31), one side fixed mounting of mount pad B (26) has two synchronous motor B (28), the bottom surface movable mounting of mount pad B (26) has two clamp blocks B (32), the top surface of two clamp blocks B (32) all fixed mounting has slider B (33), the bottom surface fixed mounting of clamp block B (32) has limit splint B (25), the inside movable mounting of two movable slots B (29) has two positive and negative silk threaded rod B (21), one side fixed mounting of connecting rod B (21) has one side fixed mounting of connecting rod B (27), the outside movable mounting of gag lever post (2) is equipped with spacing section of thick bamboo B (23), the outside movable mounting of spacing section of thick bamboo B (23) has movable rod B (24).

2. The clamping device with a protective function for a tensile tester according to claim 1, wherein: the four limit rods (2) movably penetrate through the bottom surface of the movable plate (4) and extend to the bottom surface of the fixed plate (5).

3. The clamping device with a protective function for a tensile tester according to claim 1, wherein: the output end of the hydraulic rod (7) movably penetrates through the top surface of the fixed plate (5) and extends to the top surface of the movable plate (4).

4. The clamping device with a protective function for a tensile tester according to claim 1, wherein: one end of the positive and negative threaded rod A (10) movably penetrates through one side of the sliding block A (12) and extends to the output end of the synchronous motor A (13), and one end of the positive and negative threaded rod B (31) movably penetrates through one side of the sliding block B (33) and extends to the output end of the synchronous motor B (28).

5. The clamping device with a protective function for a tensile tester according to claim 1, wherein: one end of each movable rod A (17) movably penetrates through one side of the limiting clamp plate A (30) and is hinged to one end of the connecting rod A (16), and one end of each movable rod B (24) movably penetrates through one side of the limiting clamp plate B (25) and is hinged to one end of the connecting rod B (27).

6. The clamping device with a protective function for a tensile tester according to claim 1, wherein: the connecting rod A (16) is arc-shaped, the radian of the lower stop block (14) is the same as that of the connecting rod A (16), the connecting rod B (27) is arc-shaped, and the radian of the connecting rod B (27) is the same as that of the upper stop block (3).

7. The clamping device with a protective function for a tensile tester according to claim 1, wherein: the limiting cylinder A (18) is arranged on the outer side of the limiting bolt A (19) in a threaded mode, and the limiting cylinder B (23) is arranged on the outer side of the limiting bolt B (22) in a threaded mode.