Spring tension and compression test equipment

Abstract

The utility model relates to the technical field of spring production test, and discloses spring tension and compression test equipment which comprises a box body, a workbench is fixedly connected in the box body, one side of the top of the workbench is fixedly connected with a sleeve box, and the other side of the top of the workbench is fixedly connected with a sliding rod. A rack is fixedly connected to the inner wall of the sleeve box, a fixing groove is formed in one side of the rack, a connecting sliding block is slidably connected to the inner wall of the fixing groove, a connecting block is fixedly connected to the other end of the connecting sliding block, a motor is fixedly connected to the interior of the connecting block, and a gear is fixedly connected to the output end of the motor. According to the utility model, the lifting block descends to extrude the protective cover, so that the protective cover descends synchronously along with the descending of the lifting block under the action of the second spring at the bottom of the protective cover, the top of the protective cover can be attached to the bottom of the lifting block, and effective external protection can be realized in the spring test process.

Description

Technical Field

[0001] The utility model relates to the technical field of spring production and testing, in particular to a spring tensile and compressive testing device. Background Art

[0002] Springs are widely used, covering all fields of the national economy. From high-tech aerospace to small household appliances in daily life, and then to various industrial equipment and machinery manufacturing, springs play an indispensable role. Among them, springs need to be subjected to tensile and compressive tests during the factory process to calculate the service life of the springs, so as to facilitate their application to the requirements of the working system where they are located.

[0003] However, in the existing spring tensile and compressive testing equipment, when conducting a tensile and compressive test on a spring, the spring is bent by pressure, so that the spring pops out due to excessive pressure during the test, thus increasing the risk coefficient.

[0004] In view of the above problems, a spring tensile and compressive testing device is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a spring tensile and compressive testing device, aiming to improve the problem that in the existing spring tensile and compressive testing device, when conducting a tensile and compressive test on a spring, the spring may be bent by pressure, thus increasing the risk.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a spring tensile and compressive testing device, including a box body, a workbench is fixedly connected inside the box body, a sleeve box is fixedly connected to one side of the top of the workbench, a sliding rod is fixedly connected to the other side of the top of the workbench, a rack is fixedly connected to the inner wall of the sleeve box, a fixing groove is opened on one side of the rack, an adapter slider is slidably connected to the inner wall of the fixing groove, the other end of the adapter slider is fixedly connected to an adapter block, a motor is fixedly connected inside the adapter block, an output end of the motor is fixedly connected to a gear, the other side of the gear is rotatably connected to a lifting rod, a lifting block is fixedly connected to the outside of the lifting rod, a positioning block is fixedly connected to the top of the lifting block, a limiting groove is opened at the bottom of the lifting block, an adapter groove is opened on the inner side wall of the limiting groove, a limiting slider is slidably connected to the inner wall of the adapter groove, a pull rod is fixedly connected to one side of the limiting slider, a clamping block is fixedly connected to the other side of the limiting slider, a first spring is sleeved on the outside of the pull rod, and a protection component is installed inside the workbench, and the protection component is used for the protection effect when the lifting block stretches and compresses the spring.

[0007] As a further description of the above technical solution:

[0008] The protection component includes a lifting groove, which is opened at the top of the workbench. A protective cover is slidably connected to the inner wall of the lifting groove, and a second spring is laid inside the lifting groove.

[0009] As a further description of the above technical solution:

[0010] A groove is opened at the top of the workbench, and a hook is installed inside the groove.

[0011] As a further description of the above technical solution:

[0012] One end of the second spring is fixedly connected to the top of the protective cover, and the other end of the second spring is fixedly connected to the inner wall of the lifting groove.

[0013] As a further description of the above technical solution:

[0014] The outside of the gear is meshed with the outside of the rack.

[0015] As a further description of the above technical solution:

[0016] One end of the first spring is fixedly connected to one side of the limit slider, and the other end of the first spring is fixedly connected to the inner wall of the connection groove.

[0017] As a further description of the above technical solution:

[0018] A sliding groove is opened on the other side of the sleeve box, and the outside of the lifting rod is slidably connected to the inner wall of the sliding groove.

[0019] As a further description of the above technical solution:

[0020] The bottom of the box body is fixedly connected with a base, the front side of the box body is rotatably connected with a box door, and a handle is fixedly connected to the outside of the box door.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by pulling the pull rod, the limit slider is driven to move along the inner wall of the connection groove, so that the clamping block moves out of the inner wall of the limit groove. Thus, by placing the spring to be tested into the limit groove, and then releasing the pull rod, under the action of the first spring, the limit slider is pushed to move, so that the clamping block clamps the top of the tested spring, so that the top of the spring is more stable during the test.

[0023] 2. In the utility model, by the descent of the lifting block to squeeze the protective cover, thus under the action of the second spring at the bottom of the protective cover, the protective cover descends synchronously with the descent of the lifting block, so that the top of the protective cover fits the bottom of the lifting block, so that effective protection against the outside can be achieved during the spring test. Brief Description of the Drawings

[0024] Figure 1 Fig. is a perspective view of a spring tension and compression test device proposed by the present utility model;

[0025] Figure 2 Fig. is a schematic diagram of the gear structure of a spring tension and compression test device proposed by the present utility model;

[0026] Figure 3 Fig. is a schematic diagram of the connecting slider structure of a spring tension and compression test device proposed by the present utility model;

[0027] Figure 4 Fig. is a schematic diagram of the limit slider structure of a spring tension and compression test device proposed by the present utility model;

[0028] Figure 5 Fig. is a schematic diagram of the protective cover structure of a spring tension and compression test device proposed by the present utility model.

[0029] Legend Explanation:

[0030] 1. Base; 2. Box body; 3. Slide bar; 4. Workbench; 5. Box door; 6. Lifting rod; 7. Lifting block; 8. Positioning block; 9. Sleeve box; 10. Chute; 11. Handle; 12. Rack; 13. Gear; 14. Connecting block; 15. Motor; 16. Connecting slider; 17. Fixed groove; 18. Limit groove; 19. Pull rod; 20. Connecting groove; 21. First spring; 22. Limit slider; 23. Block; 24. Protective cover; 25. Groove; 26. Lifting groove; 27. Second spring. Detailed Embodiment

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figure 1 、 Figure 3 and Figure 4, an embodiment provided by the present utility model: a spring tensile and compressive test device, including a box body 2, a workbench 4 is fixedly connected inside the box body 2, a sleeve box 9 is fixedly connected to one side of the top of the workbench 4, a sliding rod 3 is fixedly connected to the other side of the top of the workbench 4, a rack 12 is fixedly connected to the inner wall of the sleeve box 9, a fixing groove 17 is opened on one side of the rack 12, a connecting slider 16 is slidably connected to the inner wall of the fixing groove 17, the other end of the connecting slider 16 is fixedly connected to a connecting block 14, a motor 15 is fixedly connected inside the connecting block 14, an output end of the motor 15 is fixedly connected to a gear 13, the other side of the gear 13 is rotatably connected to a lifting rod 6, a lifting block 7 is fixedly connected to the outside of the lifting rod 6, a positioning block 8 is fixedly connected to the top of the lifting block 7, a limiting groove 18 is opened at the bottom of the lifting block 7, a connecting groove 20 is opened on the inner side wall of the limiting groove 18, a limiting slider 22 is slidably connected to the inner wall of the connecting groove 20, a pull rod 19 is fixedly connected to one side of the limiting slider 22, a clamping block 23 is fixedly connected to the other side of the limiting slider 22, a first spring 21 is sleeved on the outside of the pull rod 19, a protection component is installed inside the workbench 4, and the protection component is used for the protection of the lifting block 7 when stretching and compressing the spring. One end of the first spring 21 is fixedly connected to one side of the limiting slider 22, and the other end of the first spring 21 is fixedly connected to the inner wall of the connecting groove 20.

[0033] Specifically, the pull rod 19 fixes the limit slider 22. Thus, by pulling the pull rod 19 and with the connecting slot 20 restricting the limit slider 22, the limit slider 22 can be driven to move along the inner wall of the connecting slot 20. The limit slider 22 fixes the clamping block 23, so that the clamping block 23 moves out of the inner wall of the limit slot 18. Then, by placing the spring to be tested into the limit slot 18 and through the action of the positioning block 8, the deviation of the spring can be effectively restricted. Then, by releasing the pull rod 19, one end of the first spring 21 fixes the limit slider 22. Thus, under the action of the first spring 21, the limit slider 22 is pushed to move, and then the clamping block 23 clamps the top of the spring to be tested, so that the top of the spring is more stable during the test. Then, the bottom of the spring is placed into the groove 25, and the output end of the motor 15 fixes the gear 13. By starting the motor 15 to drive the gear 13 to rotate, under the fixing action of the rack 12, the gear 13 moves up and down. The fixing slot 17 restricts the connecting slider 16. Thus, the connecting slider 16 moves along the inner wall of the fixing slot 17, and under the action of the connecting block 14 and the connecting slider 16, the movement of the gear 13 is more stable. Thus, the lifting rod 6 moves up and down. Under the guiding action of the sliding rod 3, the other end of the lifting rod 6 slides outside the sliding rod 3, so that the lifting rod 6 moves smoothly. The lifting rod 6 fixes the lifting block 7, so as to drive the lifting block 7 to move up and down more smoothly. Thus, the spring to be tested can be stretched or compressed, making the test process more stable.

[0034] Refer to Figure 1 and Figure 5 As shown in FIGS. 7 and 8, the protection assembly includes a lifting groove 26. The lifting groove 26 is opened at the top of the workbench 4. The inner wall of the lifting groove 26 is slidably connected with a protective cover 24. A second spring 27 is laid inside the lifting groove 26. A groove 25 is opened at the top of the workbench 4, and a hook is installed inside the groove 25. One end of the second spring 27 is fixedly connected to the top of the protective cover 24, and the other end of the second spring 27 is fixedly connected to the inner wall of the lifting groove 26.

[0035] Specifically, the lifting and lowering of the lifting block 7 squeezes the protective cover 24. With the lifting groove 26 restricting the protective cover 24, the protective cover 24 moves along the inner wall of the lifting groove 26. One end of the second spring 27 fixes the bottom of the protective cover 24. Thus, under the action of the second spring 27 at the bottom of the protective cover 24, the protective cover 24 descends synchronously with the descent of the lifting block 7. Thus, the top of the protective cover 24 can be made to fit the bottom of the lifting block 7, so that the external protection can be effectively provided during the spring test, thereby improving the safety of the machine.

[0036] Refer toFigure 1 and Figure 2 The external meshing connection of the gear 13 is outside the rack 12. A base 1 is fixedly connected to the bottom of the box body 2, and a box door 5 is rotatably connected to the front side of the box body 2. A handle 11 is fixedly connected to the outside of the box door 5. A sliding groove 10 is provided on the other side of the sleeve box 9, and the outside of the lifting rod 6 is slidably connected to the inner wall of the sliding groove 10.

[0037] Specifically, under the interaction of the gear 13 and the rack 12, and through the fixing action of the rack 12, the gear 13 moves along the outside of the rack 12. The box door 5 fixes the handle 11, so that the box door 5 can be opened by pulling the handle 11. The sliding groove 10 limits the lifting rod 6, so that the lifting rod 6 can move along the inner wall of the sliding groove 10, thus playing a guiding role.

[0038] Working principle: When using this device, the box door 5 is opened by pulling the handle 11. By pulling the pull rod 19 in this way, the limit slider 22 is driven to move along the inner wall of the connecting groove 20, so that the clamping block 23 moves out of the inner wall of the limit groove 18. Then, the spring to be tested is placed in the limit groove 18. By releasing the pull rod 19, under the action of the first spring 21, the limit slider 22 is pushed to move, and then the clamping block 23 clamps the top of the tested spring, so that the top of the spring is more stable during the test. Then, the bottom of the spring is placed in the groove 25. The motor 15 is started to drive the gear 13 to rotate. Under the fixing action of the rack 12, the gear 13 moves up and down. Under the action of the connecting block 14 and the connecting slider 16, the movement of the gear 13 is more stable. In this way, the lifting rod 6 moves up and down. The other end of the lifting rod 6 slides on the outside of the sliding rod 3, so that the lifting rod 6 moves smoothly, and then drives the lifting block 7 to move up and down smoothly. In this way, the spring to be tested can be stretched or compressed, and the spring is more stable during the stretching or compression process;

[0039] During the spring test, through the up and down movement of the lifting block 7, when the lifting block 7 descends to a certain extent, it will squeeze the protective cover 24. Under the action of the second spring 27 at the bottom of the protective cover 24, the protective cover 24 descends synchronously with the descent of the lifting block 7. In this way, the top of the protective cover 24 can fit the bottom of the lifting block 7. In this way, during the spring test, the external protection can be effectively carried out, thus improving the safety of the machine.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A spring tension and compression test device, comprising a box (2), characterized in that: A workbench (4) is fixedly connected to the inside of the box (2); a sleeve box (9) is fixedly connected to one side of the top of the workbench (4); a slide bar (3) is fixedly connected to the other side of the top of the workbench (4); a rack (12) is fixedly connected to the inner wall of the sleeve box (9); a fixed groove (17) is provided on one side of the rack (12); a connecting slide block (16) is slidably connected to the inner wall of the fixed groove (17); a connecting block (14) is fixedly connected to the other end of the connecting slide block (16); a motor (15) is fixedly connected to the inside of the connecting block (14); a gear (13) is fixedly connected to the output end of the motor (15); and a lifting rod (6) is rotatably connected to the other side of the gear (13). The lifting rod (6) is fixedly connected to a lifting block (7) on the outside, and a positioning block (8) is fixedly connected to the top of the lifting block (7). A limiting groove (18) is provided at the bottom of the lifting block (7), and a connecting groove (20) is provided on the inner wall of the limiting groove (18). The inner wall of the connecting groove (20) is slidably connected to a limiting slider (22). A pull rod (19) is fixedly connected to one side of the limiting slider (22), and a clamping block (23) is fixedly connected to the other side of the limiting slider (22). A first spring (21) is sleeved on the outside of the pull rod (19). A protection component is installed inside the workbench (4), and the protection component is used to protect the lifting block (7) from pulling and compressing the spring.

2. A spring tension and compression test equipment according to claim 1, characterized in that: The protection component comprises a lifting groove (26), the lifting groove (26) is opened on the top of the workbench (4), the inner wall of the lifting groove (26) is slidably connected with a protective cover (24), and a second spring (27) is laid inside the lifting groove (26).

3. A spring tension and compression test equipment according to claim 1, characterized in that: A groove (25) is provided on the top of the workbench (4), and a hook is installed inside the groove (25).

4. A spring tension and compression test equipment according to claim 2, characterized in that: One end of the second spring (27) is fixedly connected to the top of the protective cover (24), and the other end of the second spring (27) is fixedly connected to the inner wall of the lifting groove (26).

5. A spring tension and compression test equipment according to claim 1, characterized in that: The outer part of the gear (13) is meshedly connected to the outer part of the rack (12).

6. A spring tension and compression test equipment according to claim 1, characterized in that: One end of the first spring (21) is fixedly connected to one side of the limiting slider (22), and the other end of the first spring (21) is fixedly connected to the inner wall of the connecting groove (20).

7. A spring tension and compression test equipment according to claim 1, characterized in that: A slide groove (10) is provided on the other side of the sleeve box (9), and the outer portion of the lifting rod (6) is slidably connected to the inner wall of the slide groove (10).

8. A spring tension and compression test equipment according to claim 1, characterized in that: The bottom of the box body (2) is fixedly connected to a base (1), the front side of the box body (2) is rotatably connected to a box door (5), and the outside of the box door (5) is fixedly connected to a handle (11).

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