Detachable clamp of push-torsion fatigue testing machine

Abstract

The utility model provides a detachable clamp of a push-torsion fatigue testing machine. According to the detachable clamp of the push-torsion fatigue testing machine, a testing table is fixedly connected to the tops of two supporting frames, a mounting buckle is mounted at the position, located on one side, of the top of the testing table through a driving assembly, and the front face and the back face of the mounting buckle are both in threaded connection with fixing bolts; the bottom of the inner wall of the installation buckle is fixedly connected with a fixing piece, the top of the fixing piece is fixedly connected with a supporting spring, a clamping block is installed in the installation buckle, one side of the clamping block is fixedly connected with a driving disc, and the other end of the driving disc is fixedly connected with four fixing blocks. According to the detachable clamp of the push-torsion fatigue testing machine, the driving disc and the driven disc with the clamp can be rapidly replaced through the structure, the push-torsion fatigue testing machine can conveniently clamp and fix different sample pieces when testing the different sample pieces, the clamp replacement difficulty is reduced, and the test efficiency of the push-torsion fatigue testing machine can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures for push-twist fatigue testing machines, and particularly relates to a detachable fixture for a push-twist fatigue testing machine. Background Art

[0002] A fatigue testing machine is a machine mainly used for testing the fatigue performance of metals and their alloy materials under tensile, compressive, or tensile-compressive alternating loads at room temperature.

[0003] Fatigue testing machines are used to measure the fatigue characteristics, fatigue life, prefabricated cracks, and crack propagation tests of metals, alloy materials, and their components under tensile, compressive, or tensile-compressive alternating loads at room temperature. After being equipped with corresponding test fixtures, high-frequency fatigue testing machines can conduct three-point bending tests, four-point bending tests, thin plate tensile tests, thick plate tensile tests, reinforced steel bar tensile tests, chain tensile tests, fixed part tests, connecting rod tests, torsional fatigue tests, bending-torsion combined fatigue tests, alternating bending fatigue tests, CT tests, CCT tests, gear fatigue tests, etc. under sinusoidal loads.

[0004] During the testing process of a specimen by a push-twist fatigue testing machine, different fixtures are needed to fix the specimen. Since the number of specimens tested by the push-twist fatigue testing machine every day is large, the fixtures need to be frequently replaced. The traditional fixtures are inconvenient to disassemble, increasing the replacement difficulty and thus affecting the testing efficiency of the push-twist fatigue testing machine.

[0005] Therefore, it is necessary to provide a detachable fixture for a push-twist fatigue testing machine to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides a detachable fixture for a push-twist fatigue testing machine, which solves the problem that the traditional fixture used on the push-twist fatigue testing machine is inconvenient to disassemble, increasing the replacement difficulty and thus affecting the testing efficiency of the push-twist fatigue testing machine.

[0007] To solve the above technical problems, the detachable fixture for a push-twist fatigue testing machine provided by the utility model includes: two support frames;

[0008] A test bench, the test bench is fixedly connected to the tops of the two support frames. An installation buckle is installed on one side of the top of the test bench through a driving component. Fixing bolts are threadedly connected to both the front and back of the installation buckle. Fixed pieces are fixedly connected to the bottoms of the inner walls of the installation buckle. Support springs are fixedly connected to the tops of the fixed pieces. A clamping block is installed inside the installation buckle. A driving disk is fixedly connected to one side of the clamping block. Four fixing blocks are fixedly connected to the other end of the driving disk. Adjusting bolts are threadedly connected to one side of each of the four fixing blocks. The adjacent ends of the four adjusting bolts are rotatably connected to a clamping ring through a rotating ring;

[0009] Fixing bracket, the fixing bracket is fixedly connected to the top of the test bench at the other side position, one side of the fixing bracket is fixedly connected with a telescopic rod, the telescopic end of the telescopic rod is installed with a mounting component through an internal torsion adjusting device, and the other side of the mounting component is installed with a driven disc;

[0010] The driving component includes a servo motor, a frame, a driving gear, a transmission gear, a mounting buckle is connected to the transmission gear in the driving component, the top of the support spring is also installed with a fixing piece, and the other side of the mounting buckle is provided with an opening for the clamping block to be inserted into the inside of the mounting buckle. For specific reference Figure 5 The front and back of the clamping block are both provided with threaded holes threadedly connected to the fixing bolts. The mounting component is composed of the structure on the mounting buckle. The mounting method of the driven disc is the same as that of the driving disc. One end of the driven disc adjacent to the driving disc is also installed with a clamping ring through four fixing blocks.

[0011] Preferably, a support plate is installed between the two support frames, and a placement box is installed on the top of the support plate;

[0012] The support plate can increase the stability of the support frame.

[0013] Preferably, a control box is installed on one of the support frames, and a box door is rotatably connected to the other side of the control box;

[0014] A power switch is installed inside the control box.

[0015] Preferably, a mounting base is installed on the front of the test bench, and a control switch is installed on the front of the mounting base.

[0016] Preferably, two slide rails are installed on the top of the test bench, and two openings for sliding on the slide rails are provided at the bottom of the internal torsion adjusting device;

[0017] Under the control of the measurement and control system, the internal torsion adjusting device measures the torque at the end of the sample in real time and adjusts the slip angle between the driving disc and the driven disc through the servo motor.

[0018] Preferably, a mounting frame is fixedly connected to the back of the test bench, and a camera is installed on the top of the inner wall of the mounting frame;

[0019] The position of the camera refers to Figure 1 .

[0020] Compared with the related technology, the detachable fixture of the push-twist fatigue testing machine provided by the present utility model has the following beneficial effects:

[0021] The utility model provides a detachable fixture for a push-twist fatigue testing machine. In order to facilitate the replacement of the fixture on the push-twist fatigue testing machine, an installation buckle is installed on the test bench through a driving component. At the bottom of the inner wall of the installation buckle, two supporting springs are installed through two fixing pieces. Then, only need to snap the clamping block into the interior of the installation buckle, and make the bottom of the clamping block contact with the fixing piece at the top of the supporting spring. At the same time, the clamping block is installed inside the installation buckle through two fixing bolts. A driving disk with a fixture is fixedly connected to one side of the clamping block. Then, only need to install the driven disk on the internal torque adjusting device through the installation component. When it is necessary to disassemble the driving disk or the driven disk with the fixture, only need to remove the two fixing bolts on the installation buckle to release the restriction on the clamping block. Then, only need to draw out the clamping block from above the installation buckle, and the driving disk and the driven disk can be removed from between the two installation buckles. Through this structure, the driving disk and the driven disk with the fixture can be quickly replaced, which is convenient for the push-twist fatigue testing machine to clamp and fix different samples during testing, reduces the difficulty of fixture replacement, and is beneficial to improving the testing efficiency of the push-twist fatigue testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic structural diagram of a preferred embodiment of the detachable fixture for a push-twist fatigue testing machine provided by the utility model;

[0023] Figure 2 FIG. 2 is a top view of the structure of the test bench provided by the utility model;

[0024] Figure 3 FIG. 3 is a schematic structural diagram of the slide rail provided by the utility model;

[0025] Figure 4 FIG. 4 is provided by the utility model Figure 2 An enlarged view of the part marked A in FIG. 1;

[0026] Figure 5 FIG. 5 is provided by the utility model Figure 3 An enlarged view of the part marked B in FIG. 1.

[0027] Reference numerals in the figures: 1, support frame; 2, support plate; 3, placement box; 4, control box; 5, box door; 6, test bench; 7, driving component; 8, installation buckle; 9, installation frame; 10, camera; 11, slide rail; 12, driven disk; 13, internal torque adjusting device; 14, fixing frame; 15, telescopic rod; 16, installation base; 17, control switch; 18, fixing piece; 19, supporting spring; 20, clamping block; 21, driving disk; 22, clamping ring; 23, rotating ring; 24, adjusting bolt; 25, fixing block; 26, fixing bolt; 27, installation component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further illustrates the utility model in conjunction with the drawings and embodiments.

[0029] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , where Figure 1 is a schematic structural view of a preferred embodiment of the detachable fixture of the push-twist fatigue testing machine provided by the present utility model; Figure 2 is a top view of the structure of the test bench provided by the present utility model; Figure 3 is a schematic structural view of the slide rail provided by the present utility model; Figure 4 is provided by the present utility model Figure 2 is an enlarged view of the position A shown in Figure 5 is provided by the present utility model Figure 3 is an enlarged view of the position A shown in. The detachable fixture of the push-twist fatigue testing machine includes: two support frames 1;

[0030] A test bench 6, the test bench 6 is fixedly connected to the tops of the two support frames 1. An installation buckle 8 is installed on one side of the top of the test bench 6 through a driving assembly 7. Fixing bolts 26 are threadedly connected to both the front and back of the installation buckle 8. Fixed pieces 18 are fixedly connected to the bottoms of the inner walls of the installation buckle 8. Support springs 19 are fixedly connected to the tops of the fixed pieces 18. A clamping block 20 is installed inside the installation buckle 8. A driving disk 21 is fixedly connected to one side of the clamping block 20. Four fixing blocks 25 are fixedly connected to the other end of the driving disk 21. Adjusting bolts 24 are threadedly connected to one side of each of the four fixing blocks 25. The adjacent ends of the four adjusting bolts 24 are rotatably connected to a clamping ring 22 through a rotating ring 23;

[0031] A fixing frame 14, the fixing frame 14 is fixedly connected to the other side of the top of the test bench 6. A telescopic rod 15 is fixedly connected to one side of the fixing frame 14. An installation assembly 27 is installed at the telescopic end of the telescopic rod 15 through an internal torsion adjusting device 13. A driven disk 12 is installed on the other side of the installation assembly 27;

[0032] The driving assembly 7 includes a servo motor, a frame, a driving gear and a transmission gear. The transmission gear in the installation buckle 8 is connected. Fixed pieces 18 are also installed at the tops of the support springs 19. An opening for the clamping block 20 to be inserted into the inside of the installation buckle 8 is provided on the other side of the installation buckle 8. For specific reference Figure 5 , threaded holes for threadedly connecting with the fixing bolts 26 are provided on both the front and back of the clamping block 20. The installation assembly 27 is composed of the structure on the installation buckle 8. The installation method of the driven disk 12 is the same as that of the driving disk 21. A clamping ring 22 is also installed at one end of the driven disk 12 adjacent to the driving disk 21 through four fixing blocks 25. The structures at the adjacent ends of the driven disk 12 and the driving disk 21 are the same.

[0033] A support plate 2 is installed between the two support frames 1, and a placement box 3 is installed on the top of the support plate 2;

[0034] Auxiliary tools can be placed inside the placement box 3, and the support plate 2 can increase the stability of the support frame 1.

[0035] A control box 4 is installed on one side of one of the support frames 1, and a box door 5 is rotatably connected to the other side of the control box 4;

[0036] A lock is provided on the box door 5, and a power switch is installed inside the control box 4.

[0037] An installation base 16 is installed on the front of the test bench 6, and a control switch 17 is installed on the front of the installation base 16;

[0038] The control switch 17 can control the equipment on the test bench 6.

[0039] Two slide rails 11 are installed on the top of the test bench 6, and two openings for sliding on the slide rails 11 are provided at the bottom of the internal torsion adjustment device 13;

[0040] Under the control of the measurement and control system, the internal torsion adjustment device 13 measures the torque at the end of the sample in real time, and adjusts the slip angle between the driving disk and the driven disk through the servo motor, so as to achieve the purpose of measuring and controlling the torsion at both ends of the sample during the test process.

[0041] An installation frame 9 is fixedly connected to the back of the test bench 6, and a camera 10 is installed on the top of the inner wall of the installation frame 9;

[0042] The position reference of the camera 10 Figure 1 , and the camera 10 can record the test process.

[0043] The working principle of the detachable fixture of the push-twist fatigue testing machine provided by the present utility model is as follows:

[0044] An installation buckle 8 is installed on the test bench 6 through a driving component 7. At the bottom of the inner wall of the installation buckle 8, two support springs 19 are installed through two fixing pieces 18. Then, only need to snap the clamping block 20 into the interior of the installation buckle 8, and make the bottom of the clamping block 20 contact the fixing piece 18 at the top of the support spring 19. At the same time, install the clamping block 20 inside the installation buckle 8 through two fixing bolts 26. And a driving disk 21 with a fixture is fixedly connected to one side of the clamping block 20. Then, only need to install the driven disk 12 on the internal torque adjusting device 13 through the installation component 27. When it is necessary to disassemble the driving disk 21 or the driven disk 12 with the fixture, only need to remove the two fixing bolts 26 on the installation buckle 8, then the restriction on the clamping block 20 can be released. After that, only need to draw out the clamping block 20 from above the installation buckle 8, and the driving disk 21 and the driven disk 12 can be removed from between the two installation buckles 8.

[0045] Compared with the related art, the detachable fixture of the push-twist fatigue testing machine provided by the present utility model has the following beneficial effects:

[0046] In order to facilitate the replacement of the fixture on the push-twist fatigue testing machine, an installation buckle 8 is installed on the test bench 6 through a driving component 7. At the bottom of the inner wall of the installation buckle 8, two support springs 19 are installed through two fixing pieces 18. Then, only need to snap the clamping block 20 into the interior of the installation buckle 8, and make the bottom of the clamping block 20 contact the fixing piece 18 at the top of the support spring 19. At the same time, install the clamping block 20 inside the installation buckle 8 through two fixing bolts 26. And a driving disk 21 with a fixture is fixedly connected to one side of the clamping block 20. Then, only need to install the driven disk 12 on the internal torque adjusting device 13 through the installation component 27. When it is necessary to disassemble the driving disk 21 or the driven disk 12 with the fixture, only need to remove the two fixing bolts 26 on the installation buckle 8, then the restriction on the clamping block 20 can be released. After that, only need to draw out the clamping block 20 from above the installation buckle 8, and the driving disk 21 and the driven disk 12 can be removed from between the two installation buckles 8. By this structure, the driving disk 21 and the driven disk 12 with the fixture can be quickly replaced, which is convenient for the push-twist fatigue testing machine to clamp and fix different specimens during testing, reduces the difficulty of fixture replacement, and is beneficial to improving the testing efficiency of the push-twist fatigue testing machine.

[0047] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A detachable fixture for a push-torsion fatigue testing machine, characterized in that: include: Two support frames; A test bench, the test bench is fixedly connected to the top of two support frames, the top of the test bench is located at one side and a mounting buckle is installed through a driving assembly, the front and back sides of the mounting buckle are threadedly connected with fixing bolts, the bottom of the inner wall of the mounting buckle is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected with a supporting spring, a clamping block is installed inside the mounting buckle, one side of the clamping block is fixedly connected with a driving disk, the other end of the driving disk is fixedly connected with four fixing blocks, one side of the four fixing blocks is threadedly connected with an adjusting bolt, and the adjacent ends of the four adjusting bolts are rotatably connected with a clamping ring through a rotating ring; A fixing frame, the fixing frame is fixedly connected to the top of the test bench at a position on the other side, a telescopic rod is fixedly connected to one side of the fixing frame, a mounting assembly is installed at the telescopic end of the telescopic rod through an internal torque adjustment device, and a driven disk is installed on the other side of the mounting assembly.

2. The detachable fixture of the push-torsion fatigue testing machine according to claim 1, characterized in that: A support plate is installed between the two support frames, and a placement box is installed on the top of the support plate.

3. The detachable fixture of the push-torsion fatigue testing machine according to claim 1, characterized in that: A control box is installed on one of the support frames, and a box door is rotatably connected to the other side of the control box.

4. The detachable fixture of the push-torsion fatigue testing machine according to claim 1, characterized in that: A mounting base is installed on the front of the test bench, and a control switch is installed on the front of the mounting base.

5. The detachable fixture of the push-torsion fatigue testing machine according to claim 1, characterized in that: Two slide rails are installed on the top of the test bench, and two openings for sliding on the slide rails are provided at the bottom of the internal torque adjustment device.

6. The detachable fixture of the push-torsion fatigue testing machine according to claim 1, characterized in that: A mounting frame is fixedly connected to the back of the test bench, and a camera is installed on the top of the inner wall of the mounting frame.

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