Auxiliary device for testing transverse stiffness of spring

Abstract

The utility model discloses an auxiliary device used for a spring transverse stiffness test, which comprises a rotating mechanism and a plurality of fixing mechanisms, the rotating mechanism comprises a rotating disc, the rotating disc can rotate around the axis of the rotating disc, the plurality of fixing mechanisms are arranged at intervals along the circumferential direction of the rotating disc, each fixing mechanism comprises two vertical plates, an adjusting piece and two clamping pieces, one vertical plate is fixedly connected with the rotating disc, and the other vertical plate is fixedly connected with the adjusting piece. The adjusting part is arranged on the rotary disc and connected with the other vertical plate, the adjusting part is used for adjusting the distance between the two vertical plates, the two clamping parts are arranged on the sides, close to each other, of the two vertical plates respectively, and the two clamping parts are used for fixing the two opposite ends of the spring respectively. The problem that in the prior art, spring transverse rigidity testing efficiency is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring stiffness testing, and particularly relates to an auxiliary device for testing the lateral stiffness of a spring. Background Technique

[0002] The spring lateral stiffness test is to apply a lateral force to the spring through a spring lateral stiffness testing machine, then measure the deformation of the spring, and finally calculate the lateral stiffness of the spring according to the relationship between the force and the deformation. This test is generally carried out after the spring is produced to ensure that the performance of the spring meets the requirements. If the lateral stiffness of the spring does not meet the standard, problems may occur during its use, such as excessive deformation, loss of elasticity, etc.

[0003] In a patent document with the existing patent application number 201820239903.9, an auxiliary device for testing the lateral stiffness of a spring is disclosed, and specifically discloses including a base plate. At least three inverted T-shaped grooves intersecting at one point are arranged on the upper surface of the base plate. A connecting bolt is clamped in the inverted T-shaped groove, and the connecting bolt is also

[0004] threadedly connected with a pressing block for pressing the spring to be tested. A fixing nut is also threadedly connected to the connecting bolt. The upper and lower surfaces of the pressing block respectively abut against the upper surface of the base plate and the lower surface of the fixing nut; through the above scheme, the device can effectively fix one end of the spring. However, during the test, after the spring is fixed, it is tested by a spring lateral stiffness testing machine. After the test is completed, the next spring is replaced for testing, which will result in a relatively long time interval between the tests of the two springs, and the test efficiency of the spring is relatively low. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, provide an auxiliary device for testing the lateral stiffness of a spring, and solve the problem of relatively low test efficiency of the spring lateral stiffness in the prior art.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an auxiliary device for testing the lateral stiffness of a spring, including a rotating mechanism and a fixing mechanism. The rotating mechanism includes a turntable that can rotate around its own axis. A plurality of the fixing mechanisms are arranged at intervals along the circumference of the turntable. The fixing mechanism includes two vertical plates, an adjusting member, and two clamping members. One of the vertical plates is fixedly connected to the turntable. The adjusting member is arranged on the turntable and connected to the other vertical plate. The adjusting member is used to adjust the distance between the two vertical plates. The two clamping members are respectively arranged on the sides of the two vertical plates close to each other, and the two clamping members are respectively used to fix the opposite ends of the spring.

[0008] In some embodiments, the adjusting member includes a slide rail, a slider, a bottom plate, and a locking portion. The slide rail is fixedly provided on the turntable. The slider is slidably connected to the slide rail. The bottom plate is fixedly connected to the other vertical plate. The locking portion is provided on the bottom plate, and the locking portion can limit the relative sliding of the slider and the slide rail.

[0009] In some embodiments, the locking portion includes a sleeve, an elastic member, a bolt, and a handle. The sleeve is fixedly provided on the bottom plate. A strip-shaped groove is formed in the side wall of the sleeve along the axial direction. The elastic member is arranged in the sleeve. One end of the bolt slidably penetrates into the sleeve and abuts against the elastic member. One end of the handle extends into the sleeve through the strip-shaped groove and is fixed to the bolt. A plurality of limiting holes are spaced along the length direction of the slide rail, and the other end of the bolt can be respectively inserted into each of the limiting holes.

[0010] In some embodiments, the two clamping members have the same structure. The clamping member includes a first limiting block, a second limiting block, a connecting plate, and a threaded screw rod. The first limiting block is fixedly provided on the vertical plate. The second limiting block is slidably arranged on the vertical plate. The connecting plate is fixedly provided on the vertical plate. The threaded screw rod is in threaded rotation connection with the connecting plate and is rotatably connected to the second limiting block at one end. The threaded screw rod is used to adjust the distance between the first limiting block and the second limiting block.

[0011] In some embodiments, convex portions are provided on the opposite sides of the first limiting block and the second limiting block.

[0012] In some embodiments, the rotating mechanism further includes a support table and a driving motor. The driving motor is fixedly provided on the support table, and the output end of the driving motor is fixedly connected to the center of the turntable.

[0013] In some embodiments, a plurality of bull eye bearings for supporting the turntable are spaced on the support table.

[0014] In some embodiments, a rotating hand wheel is fixedly provided at the other end of the threaded screw rod.

[0015] In some embodiments, the elastic member is a return spring.

[0016] In some embodiments, the number of the fixing mechanisms is 2 - 6.

[0017] Compared with the prior art, an auxiliary device for testing the lateral stiffness of a spring provided by the utility model can rotate around its own axis through a turntable. A plurality of fixing mechanisms are arranged at intervals along the circumference of the turntable. The fixing mechanism includes two vertical plates, an adjusting member and two clamping members. One vertical plate is fixedly connected to the turntable. The adjusting member is arranged on the turntable and connected to the other vertical plate. The adjusting member is used to adjust the distance between the two vertical plates. The two clamping members are respectively arranged on the sides of the two vertical plates close to each other. The two clamping members are respectively used to fix the relative two ends of the spring. Therefore, a plurality of fixing mechanisms can respectively fix a plurality of springs. After the spring in one fixing mechanism is tested, the spring in another fixing mechanism can be measured, and at the same time, the measured spring can be replaced, which can effectively improve the testing efficiency of the lateral stiffness of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 6 is a schematic structural diagram of an auxiliary device for testing the lateral stiffness of a spring provided by an embodiment of the utility model;

[0019] Figure 2 FIG. Figure 1 12 is an enlarged schematic diagram of area A in FIG. 6;

[0020] Figure 3 FIG. 16 is a schematic structural diagram of the fixing mechanism provided by an embodiment of the utility model;

[0021] Figure 4 FIG. 20 is a schematic internal structure diagram of the locking portion provided by an embodiment of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the objectives, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] In order to solve the technical problem of low testing efficiency of the lateral stiffness of a spring, the utility model provides an auxiliary device for testing the lateral stiffness of a spring, which can effectively improve the testing efficiency of the lateral stiffness of the spring.

[0024] Please refer to Figures 1-4 , Figures 1-4An auxiliary device for testing the lateral stiffness of a spring in an embodiment of the present utility model includes a rotating mechanism 1 and a fixing mechanism 2. The rotating mechanism 1 includes a turntable 11, and the turntable 11 can rotate around its own axis. A plurality of the fixing mechanisms 2 are arranged at intervals along the circumference of the turntable 11. The fixing mechanism 2 includes two vertical plates 21, an adjusting member 22, and two clamping members 23. One of the vertical plates 21 is fixedly connected to the turntable 11, the adjusting member 22 is arranged on the turntable 11 and connected to the other vertical plate 21. The adjusting member 22 is used to adjust the distance between the two vertical plates 21. The two clamping members 23 are respectively arranged on the sides of the two vertical plates 21 close to each other, and the two clamping members 23 are respectively used to fix the opposite ends of the spring.

[0025] It should be noted that the auxiliary device for testing the lateral stiffness of the spring can be used in cooperation with the spring lateral stiffness testing machine B. After the fixing mechanism 2 fixes and clamps the spring, a lateral force is applied to the spring by the spring lateral stiffness testing machine B, and then the deformation amount of the spring is measured. Finally, according to the relationship between the force and the deformation amount, the lateral stiffness of the spring can be calculated.

[0026] Based on the above solution, the rotating mechanism 1 further includes a support platform 12 and a driving motor 13. The driving motor 13 is fixedly arranged on the support platform 12, and the output end of the driving motor 13 is fixedly connected to the center of the turntable 11. Specifically, the turntable 11 is driven by the driving motor 13 to rotate around its own axis, so that the springs fixed in each fixing mechanism 2 correspond to the extrusion shaft of the spring lateral stiffness testing machine B one by one. Among them, the number of the fixing mechanisms 2 is 2 - 6, and in this specific embodiment, the number of the fixing mechanisms 2 is 4.

[0027] In addition, in order to ensure the stability of the rotation of the turntable 11, specifically, a plurality of bull's-eye bearings 14 for supporting the turntable 11 are arranged at intervals on the support platform 12. It should be noted that the plurality of bull's-eye bearings 14 are arranged along the circumference of the turntable 11.

[0028] It should be noted that the adjusting member 22 is not limited to a certain specific structure, as long as it can adjust the distance between the two vertical plates 21, and no other details will be elaborated here.

[0029] In this specific embodiment, the adjusting member 22 includes a slide rail 221, a slider 222, a bottom plate 223, and a locking portion 224. The slide rail 221 is fixedly arranged on the turntable 11, the slider 222 is slidably connected to the slide rail 221, the bottom plate 223 is fixedly connected to the other vertical plate 21, the locking portion 224 is arranged on the bottom plate 223, and the locking portion 224 can limit the relative sliding of the slider 222 and the slide rail 221.

[0030] Among them, the locking portion 224 includes a sleeve 2241, an elastic member 2242, a bolt 2243, and a handle 2244. The sleeve 2241 is fixed on the bottom plate 223. A strip-shaped groove is formed in the side wall of the sleeve 2241 along the axial direction. The elastic member 2242 is arranged inside the sleeve 2241. One end of the bolt 2243 slides through the sleeve 2241 and abuts against the elastic member 2242. One end of the handle 2244 extends into the sleeve 2241 through the strip-shaped groove and is fixed to the bolt 2243. A plurality of limiting holes 2210 are spaced along the length direction of the slide rail 221. The other end of the bolt 2243 can be inserted into each of the limiting holes respectively.

[0031] It should be noted that a through hole is formed in the bottom plate 223. After the other end of the bolt 2243 passes through the through hole, it can be inserted into a limiting hole 2210. Among them, the elastic member 2242 is a return spring.

[0032] In addition, the two clamping members 23 have the same structure. The clamping member 23 includes a first limiting block 231, a second limiting block 232, a connecting plate 233, and a threaded screw rod 234. The first limiting block 231 is fixed on the vertical plate 21. The second limiting block 232 is slidably arranged on the vertical plate 21. The connecting plate 233 is fixed on the vertical plate 21. The threaded screw rod 234 is in threaded rotational connection with the connecting plate 233 and is rotatably connected to one end of the second limiting block 232. The threaded screw rod 234 is used to adjust the distance between the first limiting block 231 and the second limiting block 232. Among them, a rotating handwheel 235 is fixed to the other end of the threaded screw rod 234.

[0033] It should be noted that after the first limiting block 231 and the second limiting block 232 are inserted into the inside of one end of the spring, by rotating the threaded screw rod 234, the relative sliding between the first limiting block 231 and the second limiting block 232 can be driven, and the distance between the first limiting block 231 and the second limiting block 232 can be adjusted, so that the first limiting block 231 and the second limiting block 232 abut against the inner wall of the spring to fix one end of the spring. On the basis of the above solution, convex portions are provided on the opposite sides of the first limiting block 231 and the second limiting block 232. In one embodiment, the cross sections of the first limiting block 231 and the second limiting block 232 are semi-circular. When the first limiting block 231 and the second limiting block 232 are fitted together, a cylindrical structure can be formed.

[0034] To better understand the present invention, the following is combined with Figures 1 through 4 to elaborate on the technical solution of the present invention in detail:

[0035] By fixing each spring in each fixing mechanism 2 and driving the turntable to rotate around its own axis by the driving motor 13, each spring in each fixing mechanism 2 is successively rotated to directly below the extrusion shaft of the spring lateral stiffness testing machine B. By applying a lateral force to the spring through the extrusion shaft and then measuring the deformation amount of the spring, it can avoid the situation where the operator is idle and the spring testing efficiency is low during the process of the spring lateral stiffness testing machine applying a lateral force to the spring.

[0036] The specific implementation manners of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An auxiliary device for testing the lateral stiffness of a spring, comprising a rotating mechanism and a fixing mechanism, characterized in that The rotating mechanism includes a turntable, which can rotate around its own axis. A plurality of fixing mechanisms are arranged at intervals along the circumference of the turntable. The fixing mechanism includes two vertical plates, an adjusting member and two clamping members. One of the vertical plates is fixedly connected to the turntable. The adjusting member is arranged on the turntable and connected to the other vertical plate. The adjusting member is used to adjust the distance between the two vertical plates. The two clamping members are respectively arranged on the side where the two vertical plates are close to each other. The two clamping members are respectively used to fix the opposite ends of the spring.

2. The auxiliary device for testing the lateral stiffness of a spring according to claim 1, wherein The adjusting member includes a slide rail, a slider, a bottom plate and a locking portion. The slide rail is fixed on the turntable. The slider is slidably connected to the slide rail. The bottom plate is fixedly connected to the other vertical plate. The locking portion is arranged on the bottom plate. The locking portion can limit the relative sliding of the slider and the slide rail.

3. The auxiliary device for testing the lateral stiffness of a spring according to claim 2, characterized in that, The locking portion includes a sleeve, an elastic member, a latch and a handle. The sleeve is fixed to the base plate. The side wall of the sleeve is provided with a strip groove along the axial direction. The elastic member is provided in the sleeve. One end of the latch is slidably inserted into the sleeve and contacts the elastic member. One end of the handle extends into the sleeve through the strip groove and is fixed to the latch. The slide rail is provided with a plurality of limiting holes spaced apart along the length direction. The other end of the latch can be respectively inserted into each of the limiting holes.

4. An auxiliary device for testing the lateral stiffness of a spring according to claim 1, characterized in that, The two clamping members have the same structure, and the clamping members include a first limit block, a second limit block, a connecting plate and a threaded screw. The first limit block is fixedly arranged on the vertical plate, the second limit block is slidably arranged on the vertical plate, the connecting plate is fixedly arranged on the vertical plate, the threaded screw is threadedly rotatably connected to the connecting plate, and one end is rotatably connected to the second limit block, and the threaded screw is used to adjust the distance between the first limit block and the second limit block.

5. An auxiliary device for testing the lateral stiffness of a spring according to claim 4, characterized in that, The first limiting block and the second limiting block are both provided with a protrusion on one side away from the other.

6. The auxiliary device for testing the lateral stiffness of a spring according to claim 1, characterized in that, The rotating mechanism further comprises a supporting platform and a driving motor. The driving motor is fixedly mounted on the supporting platform, and an output end of the driving motor is fixedly connected to the center of the rotating disk.

7. An auxiliary device for testing the lateral stiffness of a spring according to claim 6, characterized in that, A plurality of bull's eye bearings for supporting the turntable are arranged at intervals on the support platform.

8. An auxiliary device for testing the lateral stiffness of a spring according to claim 4, characterized in that, The other end of the threaded screw is fixedly provided with a rotating hand wheel.

9. An auxiliary device for testing the lateral stiffness of a spring according to claim 3, characterized in that, The elastic member is a return spring.

10. The auxiliary device for testing the lateral stiffness of a spring according to claim 1, wherein, The number of the fixing mechanisms is 2-6.

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