Bolt tension-torsion testing machine

Abstract

A bolt tension and torsion testing machine comprises an equipment base, an electric torsion disc, a lower clamping seat, a lifting lead screw, a cross beam, a clamp motor, a clamp and a buffer block, the upper portion of the equipment base is fixedly connected with the electric torsion disc, the interior of the electric torsion disc is fixedly connected with a torsion shaft, and a screw shaft groove is formed in the torsion shaft and matched with a double-thread rod. The side portion of the torsion shaft is fixedly connected with the screw motor, the interior of the screw motor is fixedly connected with the double-threaded rod, the side portion of the double-threaded rod is in threaded connection with the threaded seat, the lower clamping seat is fixedly connected with the upper portion of the threaded seat through a bolt, and the rear portion of the equipment base is fixedly connected with the pull rod seat. The front part of the pull rod seat is fixedly connected with a lifting screw rod seat; a screw rod shaft is arranged in the lifting screw rod.

Description

Technical Field

[0001] This utility model relates to the field of testing machines, and in particular to a bolt tension and torsion testing machine. Background Technology

[0002] An existing patent (publication number: CN220251620U) discloses a bolt tension and torsion testing machine. It includes a worktable with a second sliding groove on its top wall. A second slider is slidably connected to the inner wall of the second sliding groove. The second slider is centrally symmetrical. A limit block is fixedly connected to the top wall of the second slider, and a limit groove is provided inside the limit block. A second positioning spring block is fixedly connected to the inner wall of the limit groove. A drive motor is fixedly connected to the top wall of another set of the second sliders. A fixing sleeve is fixedly connected to the output end of the drive motor, and a fixing groove is provided inside the fixing sleeve. However, in this device, the positioning spring block, which is fixedly connected to the inner wall of the limit groove, relies on the positioning spring block to fix the bolt. After prolonged use, due to the tension and torsion testing of the bolt, the positioning spring block may wear or be damaged, making timely replacement impossible and affecting the stability of the equipment. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing a bolt tension and torsion testing machine that uses a buffer block inside the clamp to buffer and hold the internal bolt head. If the buffer block or the lower clamp is damaged, the handle on the side of the buffer block can be pulled to allow the buffer block to be detached from the equipment for replacement. The equipment relies on the lower clamp to hold the bolt thread. By removing the bolt at the bottom of the lower clamp, the lower clamp can be detached from the equipment for replacement, thereby further facilitating personnel maintenance.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A bolt tension and torsion testing machine includes a base, an electric torsion disc, a lower clamp, a lifting screw, a crossbeam, a clamp motor, clamps, and a buffer block. The upper part of the base is fixedly connected to the electric torsion disc, and the inside of the electric torsion disc is fixedly connected to a torsion shaft. The torsion shaft has a screw shaft groove that is adapted to a double-threaded rod. The screw shaft groove connects to the double-threaded rod, which rotates inside the screw shaft groove. The side of the torsion shaft is fixedly connected to a screw motor, and the inside of the screw motor is fixedly connected to the double-threaded rod. The side of the double-threaded rod is threadedly connected to a threaded seat. The lower clamp is fixedly connected to the upper part of the threaded seat by bolts. The rear part of the base is fixedly connected to a pull rod seat, and the front part of the pull rod seat is fixedly connected to a lifting screw seat. The lifting screw has a screw shaft inside.

[0006] The lead screw shaft is rotatably connected to the lifting screw seat, and the rear part of the pull rod seat is fixedly connected to the pull rod platform. The pull rod platform has a lead screw shaft groove inside, which is adapted to the lead screw shaft. The lead screw shaft groove is connected to the lead screw shaft, and the upper part of the lead screw shaft rotates inside the lead screw shaft groove. The upper part of the lead screw shaft groove is fixedly connected to the lead screw motor, and the inside of the lead screw motor is fixedly connected to the lead screw shaft.

[0007] The side of the crossbeam is fixedly connected to the lead screw seat. The lifting lead screw is adapted to the lead screw seat and is connected to the lead screw seat. The lead screw seat is threaded inside the lifting lead screw. The side of the crossbeam is fixedly connected to the clamping platform. The front of the clamping platform has a clamping screw shaft groove. The clamping screw shaft groove is adapted to the double-threaded clamping shaft. The clamping screw shaft groove is connected to the double-threaded clamping shaft. The double-threaded clamping shaft rotates inside the clamping screw shaft groove. The side of the clamping platform is fixedly connected to the clamping motor.

[0008] The clamp motor is fixedly connected to the double-threaded clamp shaft. The front of the clamp has a positioning seat, which is fixedly connected to the clamp threaded seat. The clamp threaded seat is threadedly connected to the side of the double-threaded clamp shaft. The front of the crossbeam is fixedly connected to the guide rod. The rear of the clamp has a clamp guide groove, which is adapted to the clamp.

[0009] The clamp guide groove connects to the clamp, and the clamp slides inside the clamp guide groove. The clamp is adapted to the buffer block, and the clamp is connected to the buffer block. The buffer block is inserted into the clamp. The side of the buffer block has a buffer block positioning pin, and the side of the clamp has a buffer block positioning groove. The buffer block positioning pin is inserted into the buffer block positioning groove. The upper part of the buffer block is fixedly connected to the handle. Beneficial effects

[0010] 1. During the use of this bolt tension and torsion testing machine, the internal bolt head is buffered and clamped by the buffer block inside the clamp. If the buffer block or the lower clamp is damaged, the handle on the side of the buffer block can be pulled to allow the buffer block to be removed from the equipment for replacement. The equipment relies on the lower clamp to clamp the bolt thread. By removing the bolt at the bottom of the lower clamp, the lower clamp can be removed from the equipment for replacement, thus further facilitating personnel maintenance.

[0011] 2. During the use of this utility model bolt tension and torsion testing machine, the torsion shaft and the clamp motor drive the double threaded rod and the double threaded clamp shaft to rotate, so that the double threaded rod and the double threaded clamp shaft drive the lower clamp and clamp to clamp inward, thereby enabling the equipment to adapt to different types of bolts for tension and torsion testing, thus increasing the adaptability of the equipment.

[0012] 3. During the use of this utility model bolt tension and torsion testing machine, the electric torsion disc inside the equipment base drives the torsion shaft to twist, and together with the two sets of screw motors on the upper part of the tie rod platform, the clamping platform is lifted and stretched, so that the two motors work together to reduce the load of a single motor and thus increase the service life of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a bolt tension and torsion testing machine according to the present invention.

[0014] Figure 2 This is a three-dimensional assembly diagram of the bolt tension and torsion testing machine according to the present invention.

[0015] Figure 3 This is a three-dimensional assembly diagram of the electric torsion disc structure of a bolt tension and torsion testing machine according to the present invention.

[0016] Figure 4 This is a three-dimensional assembly diagram of the crossbeam structure of a bolt tension and torsion testing machine according to the present invention.

[0017] Figure 5 This is a three-dimensional assembly diagram of the buffer block structure of a bolt tension and torsion testing machine according to the present invention. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0019] Example 1:

[0020] A bolt tension and torsion testing machine includes a base 01, an electric torsion disc 02, a lower clamp 08, a lifting screw 11, a crossbeam 16, a clamp motor 21, clamps 22, and a buffer block 27. The upper part of the base 01 is fixedly connected to the electric torsion disc 02. The electric torsion disc 02 is internally fixedly connected to a torsion shaft 03. The torsion shaft 03 has a screw shaft groove 04, which is adapted to a double-threaded rod 05. The screw shaft groove 04 connects to the double-threaded rod 05. The threaded rod 05 rotates inside the screw shaft groove 04. The side of the torque shaft 03 is fixedly connected to the screw motor 06. The inside of the screw motor 06 is fixedly connected to the double threaded rod 05. The side of the double threaded rod 05 is threadedly connected to the threaded seat 07. The lower clamp 08 is fixedly connected to the upper part of the threaded seat 07 by bolts. The rear part of the equipment base 01 is fixedly connected to the pull rod seat 09. The front of the pull rod seat 09 is fixedly connected to the lifting screw seat 10. The lifting screw 11 has a screw shaft 12 inside.

[0021] Example 2:

[0022] The lead screw shaft 12 of this utility model is rotatably connected to the lifting screw seat 10. The rear part of the pull rod seat 09 is fixedly connected to the pull rod platform 13. The pull rod platform 13 has a lead screw shaft groove 14 inside, which is adapted to the lead screw shaft 12. The lead screw shaft groove 14 is connected to the lead screw shaft 12, and the upper part of the lead screw shaft 12 rotates inside the lead screw shaft groove 14. The upper part of the lead screw shaft groove 14 is fixedly connected to the lead screw motor 15. During the use of the bolt tension and torsion testing machine, the electric torsion disc 02 inside the equipment base 01 drives the torsion shaft 03 to twist, and together with the two sets of lead screw motors 15 on the upper part of the pull rod platform 13, they lift and stretch the clamping platform 18, so that the two motors work together to reduce the load of a single motor and thus increase the service life of the equipment. The lead screw motor 15 is fixedly connected to the lead screw shaft 12 inside.

[0023] Example 3:

[0024] The side of the crossbeam 16 of this utility model is fixedly connected to the lead screw seat 17. The lifting lead screw 11 is adapted to the lead screw seat 17 and is connected to the lead screw seat 17. The lead screw seat 17 is threadedly connected inside the lifting lead screw 11. The side of the crossbeam 16 is fixedly connected to the clamping platform 18. The front of the clamping platform 18 has a clamping screw shaft groove 19. The clamping screw shaft groove 19 is adapted to the double threaded clamping shaft 20. The clamping screw shaft groove 19 is connected to the double threaded clamping shaft 20. The double threaded clamping shaft 20 rotates inside the clamping screw shaft groove 19. The side of the clamping platform 18 is fixedly connected to the clamping motor 21.

[0025] Example 4:

[0026] The clamp motor 21 of this utility model is fixedly connected to the double-threaded clamp shaft 20. During the use of the bolt tension and torsion testing machine, the double-threaded rod 05 and the double-threaded clamp shaft 20 are driven to rotate by the torque shaft 03 and the clamp motor 21. This causes the double-threaded rod 05 and the double-threaded clamp shaft 20 to drive the lower clamp seat 08 and the clamp 22 to clamp inward, so that the equipment can adapt to different types of bolts for tension and torsion testing, thereby increasing the adaptability of the equipment. The clamp 22 has a positioning seat 23 at the front, which is fixedly connected to the clamp thread seat 24. The clamp thread seat 24 is threaded to the side of the double-threaded clamp shaft 20. The front of the crossbeam 16 is fixedly connected to the guide rod 25. The rear of the clamp 22 has a clamp guide groove 26, which is adapted to the clamp 22.

[0027] Example 5:

[0028] The clamp guide groove 26 of this utility model connects to the clamp 22, and the clamp 22 slides inside the clamp guide groove 26. The clamp 22 is adapted to the buffer block 27, and the clamp 22 is connected to the buffer block 27. The buffer block 27 is inserted into the clamp 22. During the use of the bolt tension and torsion testing machine, the internal bolt head is buffered and clamped by the buffer block 27 inside the clamp 22. If the buffer block 27 or the lower clamp seat 08 is damaged, the handle 30 on the side of the buffer block 27 can be pulled to allow the handle 30 to drive the buffer block 27 to be removed from the equipment for replacement. The equipment relies on the lower clamp seat 08 to clamp the bolt thread. By removing the bolt at the bottom of the lower clamp seat 08, the lower clamp seat 08 can be removed from the equipment for replacement, thereby further facilitating personnel maintenance. The side of the buffer block 27 has a buffer block positioning pin 28, and the side of the clamp 22 has a buffer block positioning groove 29. The buffer block positioning pin 28 is inserted into the buffer block positioning groove 29, and the upper part of the buffer block 27 is fixedly connected to the handle 30.

[0029] Example 6:

[0030] The installation steps of this utility model are as follows: The upper part of the equipment base 01 is fixedly connected to the electric torsion disc 02; the inside of the electric torsion disc 02 is fixedly connected to the torque shaft 03; the double threaded rod 05 rotates inside the screw shaft groove 04; the side of the torque shaft 03 is fixedly connected to the screw motor 06; the inside of the screw motor 06 is fixedly connected to the double threaded rod 05; the side of the double threaded rod 05 is threadedly connected to the threaded seat 07; the lower clamp 08 is fixedly connected to the upper part of the threaded seat 07 with bolts; the rear part of the equipment base 01 is fixedly connected to the pull rod seat 09; the front part of the pull rod seat 09 is fixedly connected to the lifting screw seat 10; the lead screw shaft 12 is rotatably connected to the inside of the lifting screw seat 10; the rear part of the pull rod seat 09 is fixedly connected to the pull rod platform 13; the upper part of the lead screw shaft 12 rotates inside the lead screw shaft groove 14; and the upper part of the lead screw shaft groove 14 is fixedly connected to the lead screw motor 15. The screw motor 15 is fixedly connected to the screw shaft 12. The side of the crossbeam 16 is fixedly connected to the screw seat 17. The screw seat 17 is threaded inside the lifting screw 11. The side of the crossbeam 16 is fixedly connected to the clamping platform 18. The double-threaded clamp shaft 20 rotates inside the clamp screw shaft groove 19. The side of the clamping platform 18 is fixedly connected to the clamp motor 21. The inside of the clamp motor 21 is fixedly connected to the double-threaded clamp shaft 20. The inside of the positioning seat 23 is fixedly connected to the clamp threaded seat 24. The clamp threaded seat 24 is threaded to the side of the double-threaded clamp shaft 20. The front of the crossbeam 16 is fixedly connected to the guide rod 25. The clamp 22 slides inside the clamp guide groove 26. The buffer block 27 is inserted into the clamp 22. The buffer block positioning pin 28 is inserted into the buffer block positioning groove 29. The upper part of the buffer block 27 is fixedly connected to the handle 30.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A bolt tension and torsion testing machine, characterized in that: The equipment includes a base (01), an electric torsion disc (02), a lower clamp (08), a lifting screw (11), a crossbeam (16), a clamp motor (21), a clamp (22), and a buffer block (27). The upper part of the base (01) is fixedly connected to the electric torsion disc (02). The inside of the electric torsion disc (02) is fixedly connected to a torque shaft (03). The torque shaft (03) has a screw shaft groove (04) inside. The screw shaft groove (04) is adapted to a double-threaded rod (05). The screw shaft groove (04) is connected to the double-threaded rod (05). The rod (05) rotates inside the screw shaft groove (04). The side of the torque shaft (03) is fixedly connected to the screw motor (06). The inside of the screw motor (06) is fixedly connected to the double threaded rod (05). The side of the double threaded rod (05) is threadedly connected to the threaded seat (07). The lower clamp (08) is fixedly connected to the upper part of the threaded seat (07) by bolts. The rear part of the equipment base (01) is fixedly connected to the pull rod seat (09). The front part of the pull rod seat (09) is fixedly connected to the lifting screw seat (10). The lifting screw (11) has a screw shaft (12) inside.

2. A bolt tension and torsion testing machine according to claim 1, characterized in that: The lead screw shaft (12) is rotatably connected to the lifting screw seat (10). The rear part of the pull rod seat (09) is fixedly connected to the pull rod platform (13). The pull rod platform (13) has a lead screw shaft groove (14) inside. The lead screw shaft groove (14) is adapted to the lead screw shaft (12). The lead screw shaft groove (14) is connected to the lead screw shaft (12). The upper part of the lead screw shaft (12) rotates inside the lead screw shaft groove (14). The upper part of the lead screw shaft groove (14) is fixedly connected to the lead screw motor (15). The inside of the lead screw motor (15) is fixedly connected to the lead screw shaft (12).

3. A bolt tension and torsion testing machine according to claim 2, characterized in that... The side of the crossbeam (16) is fixedly connected to the screw seat (17), the lifting screw (11) is adapted to the screw seat (17), the lifting screw (11) is connected to the screw seat (17), the screw seat (17) is threaded inside the lifting screw (11), the side of the crossbeam (16) is fixedly connected to the clamping platform (18), the front of the clamping platform (18) has a clamping screw shaft groove (19), the clamping screw shaft groove (19) is adapted to the double thread clamping shaft (20), the clamping screw shaft groove (19) is connected to the double thread clamping shaft (20), the double thread clamping shaft (20) rotates inside the clamping screw shaft groove (19), and the side of the clamping platform (18) is fixedly connected to the clamping motor (21).

4. A bolt tension and torsion testing machine according to claim 3, characterized in that: The clamp motor (21) is fixedly connected to the double threaded clamp shaft (20). The clamp (22) has a positioning seat (23) at the front. The positioning seat (23) is fixedly connected to the clamp thread seat (24). The clamp thread seat (24) is threadedly connected to the side of the double threaded clamp shaft (20). The crossbeam (16) is fixedly connected to the guide rod (25) at the front. The clamp (22) has a clamp guide groove (26) at the rear. The clamp guide groove (26) is adapted to the clamp (22).

5. A bolt tension and torsion testing machine according to claim 4, characterized in that... The clamp guide groove (26) is connected to the clamp (22). The clamp (22) slides inside the clamp guide groove (26). The clamp (22) is adapted to the buffer block (27). The clamp (22) is connected to the buffer block (27). The buffer block (27) is inserted into the clamp (22). The side of the buffer block (27) has a buffer block positioning pin (28). The side of the clamp (22) has a buffer block positioning groove (29). The buffer block positioning pin (28) is inserted into the buffer block positioning groove (29). The upper part of the buffer block (27) is fixedly connected to the handle (30).

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