Spring fatigue detection device

Abstract

The utility model discloses a spring fatigue detection device, which comprises a working table, a spring limiting and supporting assembly and an extrusion assembly, a supporting column is arranged on the working table, the extrusion assembly is arranged on the supporting column, and the spring limiting and supporting assembly is arranged on the working table and the supporting column; the spring limiting and supporting assembly comprises a limiting barrel, an arc plate, a connecting rod and a driving part, the limiting barrel is arranged on the workbench, a groove is formed in the side wall of the limiting barrel, the driving part is arranged in the limiting barrel, one end of the connecting rod is rotationally hinged to the driving part, and the other end of the connecting rod penetrates through the groove and is rotationally hinged to the side wall of the arc plate. The utility model belongs to the technical field of fatigue detection devices, and particularly relates to a spring fatigue detection device.

Description

Technical Field

[0001] The utility model belongs to the technical field of fatigue detection devices, in particular to a spring fatigue detection device. Background Art

[0002] A spring is a mechanical part that uses elasticity to control the movement of parts, mitigate impact or vibration, store energy, measure force, etc. It plays a wide range of roles in industrial production and daily life. After the spring is generated, it is necessary to test the various properties of the spring, such as setting a high load test, permanent deformation test, fatigue life test. When performing fatigue life test on the spring, it is necessary to use spring fatigue testing equipment.

[0003] In the prior art, when the fatigue of a spring is tested by a testing machine, it is not convenient to limit the support according to the diameter of the spring, so that the spring is prone to pop out when being squeezed and tested, causing accidental injuries to the test personnel. Utility Model Content

[0004] The technical problem that the utility model aims to solve is that when the fatigue of a spring is tested by a testing machine, it is not convenient to perform limit support according to the diameter of the spring, which makes the spring easy to pop out when being squeezed and tested, causing accidental injuries to the testing personnel.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a spring fatigue detection device, including a workbench, a spring limit support assembly and an extrusion assembly, the workbench is provided with a pillar, the extrusion assembly is arranged on the pillar, and the spring limit support assembly is arranged on the workbench and the pillar; the spring limit support assembly includes a limit cylinder, an arc plate, a connecting rod and a driving member, the limit cylinder is arranged on the workbench, the side wall of the limit cylinder is provided with a groove, the driving member is arranged in the limit cylinder, one end of the connecting rod is rotatably hinged to the driving member, and the other end of the connecting rod passes through the groove and is rotatably hinged to the side wall of the arc plate.

[0006] Preferably, the driving member includes a bidirectional screw 1 and a screw pair 1, the bottom end of the bidirectional screw 1 is rotatably set on the workbench, the top end of the bidirectional screw 1 is rotatably set on the inner top wall of the limiting cylinder, the screw pair 1 is threadedly connected to the bidirectional screw 1 and two groups are arranged opposite to each other, and the end of the connecting rod is rotatably hinged on the screw pair 1 and is matched with the screw pair 1.

[0007] Preferably, the extrusion assembly includes a telescopic part, a fixed seat, a two-way screw, a screw pair and a pressure plate, the telescopic part is arranged on a pillar, the fixed seat is arranged at the bottom end of the telescopic part, the bottom wall of the fixed seat is provided with a slide groove, both ends of the two-way screw are rotatably arranged on the slide groove, the screw pair is threadedly connected to the two-way screw and two groups are arranged opposite to each other, and the pressure plate is arranged at the bottom end of the screw pair.

[0008] Preferably, a height adjusting member is provided on the pillar, and the height adjusting member includes a lead screw and a lead screw pair three. A slideway is provided on the side wall of the pillar, and both ends of the lead screw are rotatably provided on the slideway. The lead screw pair three is slidably provided on the slideway and is threadedly connected to the lead screw. A support plate is provided on the side wall of the lead screw pair three, and the telescopic member is provided on the support plate.

[0009] Preferably, the telescopic member includes a support, a turntable, a sliding rod and a connecting seat, the support is arranged on the side wall of the support plate, the side wall of the support is provided with a driving motor, the output end of the driving motor rotates and passes through the support, the turntable is arranged on the driving motor, a convex column is provided at the eccentric position of the turntable, the sliding rod slides through the support plate and the bottom end is arranged on the fixed seat, the connecting seat is arranged at the top end of the sliding rod, a limiting groove is provided on the connecting seat, and the convex column is slidably arranged on the limiting groove.

[0010] Preferably, a handle 1 is provided at the top of the pillar, the bottom end of which rotates through the pillar and is connected to a screw, a handle 2 is provided on the bottom wall of the workbench, the bottom end of which rotates through the workbench and is connected to a bidirectional screw 1, and a handle 3 is provided on the side wall of the fixed seat, the handle 3 rotates through the fixed seat and is connected to a bidirectional screw 2.

[0011] The utility model adopts the above structure to achieve the following beneficial effects: the angle between the two connecting rods and the arc plate is changed by the driving member, so that the arc plate can be moved away from the limiting cylinder, so that it can be close to the spring to be tested, support and limit it, and it is not easy to jump out and cause accidental injury to the test personnel. At this time, the fatigue test of the spring to be tested is carried out through the extrusion component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The overall structure of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The overall structure of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0015] Figure 4 This is a usage status diagram of an embodiment of the utility model.

[0016] Among them, 1. workbench, 2. spring limit support assembly, 3. extrusion assembly, 4. pillar, 5. limit cylinder, 6. arc plate, 7. connecting rod, 8. driving part, 9. groove, 10. two-way screw one, 11. screw pair one, 12. telescopic part, 13. fixed seat, 14. two-way screw two, 15. screw pair two, 16. pressure plate, 17. slide groove, 18. height adjustment part, 19. screw, 20. screw pair three, 21. slide way, 22. support plate, 23. support, 24. turntable, 25. slide rod, 26. connecting seat, 27. driving motor, 28. boss, 29. limit groove, 30. handle one, 31. handle two, 32. handle three. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-4 As shown, a spring fatigue detection device proposed by the utility model includes a workbench 1, a spring limit support assembly 2 and an extrusion assembly 3. The workbench 1 is provided with a pillar 4, the extrusion assembly 3 is arranged on the pillar 4, and the spring limit support assembly 2 is arranged on the workbench 1 and the pillar 4; the spring limit support assembly 2 includes a limit cylinder 5, an arc plate 6, a connecting rod 7 and a driving member 8. The limit cylinder 5 is arranged on the workbench 1, and the side wall of the limit cylinder 5 is provided with a groove 9. The driving member 8 is arranged in the limit cylinder 5. One end of the connecting rod 7 is rotatably hinged on the driving member 8, and the other end of the connecting rod 7 passes through the groove 9 and is rotatably hinged to the side wall of the arc plate 6. The driving member 8 drives the angle between the two connecting rods 7 and the arc plate 6 to change, so that the arc plate 6 can be moved away from the limit cylinder 5, so that it can be close to the spring to be tested, support and limit it, and the extrusion assembly 3 performs fatigue test on the spring to be tested.

[0020] The driving member 8 includes a bidirectional lead screw 10 and a lead screw pair 11. The bottom end of the bidirectional lead screw 10 is rotatably disposed on the workbench 1, and the top end of the bidirectional lead screw 10 is rotatably disposed on the inner top wall of the limiting cylinder 5. The lead screw pair 11 is threadedly connected to the bidirectional lead screw 10 and two groups are relatively arranged. The end of the connecting rod 7 is rotatably hinged on the lead screw pair 11 and is matched with the lead screw pair 11. By rotating the bidirectional lead screw 10, the two lead screw pairs 11 can be driven to approach or move away from each other, and the arc plate 6 can be driven to shrink or expand through the connecting rod 7 to perform limiting support according to the diameter of the spring to be tested.

[0021] The extrusion assembly 3 includes a telescopic member 12, a fixed seat 13, a bidirectional lead screw 14, a lead screw pair 15 and a pressure plate 16. The telescopic member 12 is arranged on the pillar 4, the fixed seat 13 is arranged at the bottom end of the telescopic member 12, the bottom wall of the fixed seat 13 is provided with a slide groove 17, both ends of the bidirectional lead screw 14 are rotatably arranged on the slide groove 17, the lead screw pair 15 is threadedly connected to the bidirectional lead screw 14 and two groups are relatively arranged, and the pressure plate 16 is arranged at the bottom end of the lead screw pair 15. By driving the bidirectional lead screw 14 to rotate, the two lead screw pairs 15 are moved closer to or farther away from each other, so as to drive the two pressure plates 16 to move closer to or farther away from each other, so that the pressure plate 16 can squeeze the spring to be tested.

[0022] The pillar 4 is provided with a height adjusting member 18, and the height adjusting member 18 includes a lead screw 19 and a lead screw pair 20. The side wall of the pillar 4 is provided with a slideway 21. Both ends of the lead screw are rotatably arranged on the slideway 21. The lead screw pair 20 is slidably arranged on the slideway 21 and is threadedly connected with the lead screw 19. The side wall of the lead screw pair 20 is provided with a support plate 22. The telescopic member 12 is arranged on the support plate 22. According to the elastic coefficient of the spring, the starting position of the pressure plate 16 is adjusted, that is, the lead screw 19 is rotated to drive the lead screw pair 20 to adjust the height of the support plate 22.

[0023] The telescopic member 12 includes a support 23, a rotating disk 24, a sliding rod 25 and a connecting seat 26. The support 23 is arranged on the side wall of the support plate 22. The side wall of the support 23 is provided with a driving motor 27. The output end of the driving motor 27 rotates and passes through the support 23. The rotating disk 24 is arranged on the driving motor 27. A boss 28 is provided at the eccentric position of the rotating disk 24. The sliding rod 25 slides through the supporting plate 22 and the bottom end is arranged on the fixed seat 13. The connecting seat 26 is arranged on the top of the sliding rod 25. A limiting groove 29 is provided on the connecting seat 26. The boss 28 is slidably arranged on the limiting groove 29. By starting the driving motor 27, the rotating disk 24 is driven to rotate, and the boss 28 on the rotating disk 24 slides on the limiting groove 29 of the connecting seat 26, thereby driving the fixed seat 13 at the bottom end of the sliding rod 25 to move up and down, thereby driving the pressure plate 16 to reciprocate and compress the spring to be tested.

[0024] A handle 1 30 is provided at the top of the pillar 4, and the bottom end of the handle 1 30 rotates through the pillar 4 and is connected to the screw. A handle 2 31 is provided at the bottom wall of the workbench 1, and the bottom end of the handle 2 31 rotates through the workbench 1 and is connected to the bidirectional screw 10. A handle 3 32 is provided on the side wall of the fixed seat 13, and the handle 3 32 rotates through the fixed seat 13 and is connected to the bidirectional screw 2 14.

[0025] During specific use, the spring to be tested is sleeved on multiple arc plates 6, and the handle 2 31 is rotated to drive the bidirectional screw 10 to rotate, which can drive the two screw pairs 11 to move closer to or away from each other, and the arc plate 6 can be expanded through the connecting rod 7 to bring the arc plate 6 close to the spring to be tested, thereby providing limited support according to the diameter of the spring to be tested.

[0026] By rotating the handle 32, the bidirectional lead screw 2 14 is driven to rotate, so that the two lead screw pairs 15 move closer to or farther from each other, driving the two pressure plates 16 to move closer to or farther from each other, so that the pressure plate 16 is placed above the spring to be tested.

[0027] According to the elastic coefficient of the spring, the starting position of the pressing plate 16 is adjusted, that is, the handle 1 30 is rotated to drive the screw to rotate, and the screw pair 3 20 is driven to adjust the height of the support plate 22.

[0028] The driving motor 27 is started to drive the turntable 24 to rotate, and the boss 28 on the turntable 24 slides on the limit groove 29 of the connecting seat 26, thereby driving the fixing seat 13 at the bottom end of the slide rod 25 to move up and down, thereby driving the pressure plate 16 to reciprocate and compress the spring to be tested.

[0029] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A spring fatigue detection device, characterized in that: It includes a workbench, a spring limit support assembly and an extrusion assembly. The workbench is provided with a pillar, the extrusion assembly is arranged on the pillar, and the spring limit support assembly is arranged on the workbench and the pillar; the spring limit support assembly includes a limit cylinder, an arc plate, a connecting rod and a driving member. The limit cylinder is arranged on the workbench, the side wall of the limit cylinder is provided with a groove, the driving member is arranged in the limit cylinder, one end of the connecting rod is rotatably hinged on the driving member, and the other end of the connecting rod passes through the groove and is rotatably hinged to the side wall of the arc plate.

2. A spring fatigue detection device according to claim 1, characterized in that: The driving member includes a bidirectional screw 1 and a screw pair 1. The bottom end of the bidirectional screw 1 is rotatably set on the workbench, and the top end of the bidirectional screw 1 is rotatably set on the inner top wall of the limiting cylinder. The screw pair 1 is threadedly connected to the bidirectional screw 1 and two groups are arranged opposite to each other. The end of the connecting rod is rotatably hinged on the screw pair 1 and is matched with the screw pair 1.

3. A spring fatigue detection device according to claim 1, characterized in that: The extrusion assembly includes a telescopic part, a fixed seat, a second bidirectional lead screw, a second lead screw pair and a pressure plate, the telescopic part is arranged on a pillar, the fixed seat is arranged at the bottom end of the telescopic part, the bottom wall of the fixed seat is provided with a slide groove, the two ends of the second bidirectional lead screw are rotatably arranged on the slide groove, the second lead screw pair is threadedly connected to the second bidirectional lead screw and two groups are arranged opposite to each other, and the pressure plate is arranged at the bottom end of the second lead screw pair.

4. A spring fatigue detection device according to claim 3, characterized in that: The pillar is provided with a height adjusting member, which includes a lead screw and a lead screw pair three. The side wall of the pillar is provided with a slideway, and both ends of the lead screw are rotatably arranged on the slideway. The lead screw pair three is slidably arranged on the slideway and is threadedly connected to the lead screw. The side wall of the lead screw pair three is provided with a support plate, and the telescopic member is arranged on the support plate.

5. A spring fatigue detection device according to claim 4, characterized in that: The telescopic member includes a support, a turntable, a sliding rod and a connecting seat. The support is arranged on the side wall of the support plate. The side wall of the support is provided with a driving motor. The output end of the driving motor rotates and passes through the support. The turntable is arranged on the driving motor. A convex column is provided at the eccentric position of the turntable. The sliding rod slides through the support plate and the bottom end is arranged on the fixed seat. The connecting seat is arranged at the top end of the sliding rod. A limiting groove is provided on the connecting seat, and the convex column is slidably arranged on the limiting groove.

6. A spring fatigue detection device according to claim 5, characterized in that: A handle 1 is provided at the top of the pillar, and the bottom end of the handle 1 rotates through the pillar and is connected to the screw. A handle 2 is provided on the bottom wall of the workbench, and the bottom end of the handle 2 rotates through the workbench and is connected to a two-way screw 1. A handle 3 is provided on the side wall of the fixed seat, and the handle 3 rotates through the fixed seat and is connected to a two-way screw 2.

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