Automobile tail door cover spring life testing device

Abstract

The utility model discloses an automobile tail door cover spring service life testing device, which solves the problems that various springs with different specifications cannot be tested, the testing device needs to be replaced if the model of the spring needs to be replaced, the fund is wasted, a fixed mechanism is lacked during testing, and the testing time is shortened when the spring is tested. The device comprises a placing bottom shell and a punching machine, the placing bottom shell is assembled on the front wall of the punching machine, through mutual cooperation of a bottom plate, a limiting hole, a limiting rod, a top plate, a thread, a positioning plate and the like, the punching machine can be placed on the placing bottom shell, and the punching machine can be conveniently and rapidly placed. The springs with different lengths and thicknesses can be sleeved on the limiting rod in the middle, and the rising limit position of the limiting rod is adjusted through the nut, so that the top plate can be in contact with the springs with different lengths, the bottom plate can be fixed by the positioning plate during testing, the phenomena of toppling and displacement of the bottom plate are prevented, and the use safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts testing, and in particular relates to a vehicle tailgate cover spring life testing device. Background Art

[0002] The tailgate spring is a common automotive component. It is usually used to support and control the opening and closing of the tailgate. The design and technology of this spring involve many aspects, including material selection, spring shape and size, and the way it is installed on the tailgate. After production, the tailgate spring needs to undergo various tests, including tensile rebound test, compression rebound test and life test.

[0003] The spring life test requires the machine to press it repeatedly to compress and rebound the spring, and repeat this process to test the spring life. However, some existing tailgate cover spring testing devices are unable to test springs of various specifications when in use. If the spring model needs to be changed, the testing device also needs to be changed, which is a waste of money. In addition, the lack of a fixed mechanism during the test makes it easy for the spring to bend and pop out of the testing device during the test, which is not safe during the test.

[0004] Therefore, a kind of automobile tailgate cover spring life test device is designed to improve the above-mentioned technical defects. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a vehicle tailgate cover spring life test device, which solves the problem that it is impossible to test springs of multiple different specifications. If the spring model needs to be changed, the test device also needs to be changed, which is a waste of money. In addition, there is a lack of a fixed mechanism during the test, which makes it easy for the spring to bend and pop out of the test device during the test, resulting in technical problems such as insufficient safety during the test.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a car tailgate cover spring life testing device, including a placing bottom shell and a punching machine, the placing bottom shell is assembled on the front wall of the punching machine, the top of the placing bottom shell is provided with evenly distributed installation openings, the top of the placing bottom shell is provided with a bottom plate, the top of the bottom plate is provided with a limiting hole, there are three limiting holes, a limiting groove is provided near the middle of the top of the bottom plate, limiting rods are respectively provided in the three limiting holes, a top plate is fixedly connected between the top ends of the three limiting rods, an adjustment mechanism is provided on the side wall of the limiting rod near the bottom, and a fixing mechanism is symmetrically provided on the top of the placing bottom shell, and the fixing mechanism is in contact with the top of the bottom plate.

[0009] Preferably, the adjustment mechanism includes a fixed plate, a movable hole matching the limit rod is opened on the top of the fixed plate, the bottom end of the limit rod passes through the installation opening and the movable hole and extends to the bottom of the fixed plate, and the side walls of the limit rod on the left and right sides are respectively fixedly connected with screw threads, and nuts are assembled on the side walls of the screw threads.

[0010] Preferably, the fixing mechanism includes a positioning plate, which is arranged in an arc shape, and a gasket is symmetrically arranged on the top of the placement bottom shell, one side of the bottom of the positioning plate contacts the top of the gasket, and the other side contacts the top of the bottom plate, a rectangular groove is opened on the top of the positioning plate, a circular hole is opened on the top of the rectangular groove, an internal threaded tube is fixedly connected to the top of the rectangular groove, bolts are symmetrically arranged in the placement bottom shell, gaskets are respectively sleeved on the side walls of the two bolts, the top of the bolt passes through the installation opening and the circular hole and extends into the internal threaded tube, and the gasket contacts the bottom of the inner cavity of the placement bottom shell.

[0011] Furthermore, a noise reduction plate is fixedly connected to the top of the top plate.

[0012] Furthermore, a rubber pad is fixedly connected to the top of the fixing plate, and the top of the rubber pad is in contact with the bottom of the bottom shell.

[0013] Furthermore, the distances between the three limiting rods are equal.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can realize that springs of different lengths and thicknesses can be sleeved on the middle limiting rod through the mutual cooperation among the bottom plate, limiting holes, limiting rods, top plate, screw threads and positioning plates, and the upper plate can be brought into contact with springs of different lengths by adjusting the rising limit position of the limiting rod through the nut. In addition, the positioning plate can fix the bottom plate during testing to prevent the bottom plate from tipping over and shifting, thereby improving the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0019] Figure 3 This is a bottom view structural diagram of the fixed plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the distribution structure of the limit rod of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the positioning plate of the utility model;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the limiting groove of the utility model.

[0023] The markings in the attached drawings are: 1. Place the bottom shell; 2. Punch; 3. Install the opening; 4. Bottom plate; 5. Limit hole; 6. Limit groove; 7. Limit rod; 8. Movable hole; 9. Top plate; 10. Noise reduction plate; 11. Screw thread; 12. Nut; 13. Gasket; 14. Fixing plate; 15. Rubber pad; 16. Positioning plate; 17. Rectangular groove; 18. Round hole; 19. Internally threaded pipe; 20. Bolt; 21. Washer. DETAILED DESCRIPTION

[0024] This specific embodiment is a vehicle tailgate cover spring life test device, and its structural schematic diagram is as follows: Figure 1-Figure 6 As shown, it includes a placement bottom shell 1 and a punching machine 2. The placement bottom shell 1 is assembled on the front wall of the punching machine 2. A uniformly distributed installation opening 3 is opened on the top of the placement bottom shell 1. A bottom plate 4 is arranged on the top of the placement bottom shell 1. A limiting hole 5 is opened on the top of the bottom plate 4. There are three limiting holes 5. A limiting groove 6 is opened near the middle of the top of the bottom plate 4. Limiting rods 7 are respectively arranged in the three limiting holes 5. A top plate 9 is fixedly connected between the top ends of the three limiting rods 7. An adjusting mechanism is arranged on the side wall of the limiting rod 7 near the bottom. A fixing mechanism is symmetrically arranged on the top of the placement bottom shell 1, and the fixing mechanism is in contact with the top of the bottom plate 4.

[0025] The punching machine 2 in this technical solution is a relatively common device in the prior art and is common knowledge, so it will not be introduced in detail in this technical solution. The top plate 9, the limiting rod 7 and the bottom plate 4 are all made of steel.

[0026] like Figure 2 and Figure 3 As shown, the adjustment mechanism includes a fixing plate 14, a movable hole 8 matching the limiting rod 7 is opened on the top of the fixing plate 14, the bottom end of the limiting rod 7 passes through the installation opening 3 and the movable hole 8 and extends to the bottom of the fixing plate 14, and screw threads 11 are fixedly connected to the side walls of the limiting rod 7 on the left and right sides, and nuts 12 are assembled on the side walls of the screw threads 11.

[0027] The screw thread 11 can be opened to the required length according to actual needs, so that the limit rod 7 can adapt to more springs of different lengths. When installing the limit rod 7, it is necessary to pay attention to the fact that the rotation heights of the two nuts 12 need to be consistent, so that the top plate 9 will be in a balanced state, avoiding the limit rod 7 from tilting when the punch 2 presses down the top plate 9, causing the limit rod 7 to bend.

[0028] like Figure 2 and Figure 5As shown, the fixing mechanism includes a positioning plate 16, which is arranged in an arc shape, and a gasket 13 is symmetrically arranged on the top of the placement bottom shell 1. One side of the bottom of the positioning plate 16 contacts the top of the gasket 13, and the other side contacts the top of the bottom plate 4. A rectangular groove 17 is opened on the top of the positioning plate 16, and a circular hole 18 is opened on the top of the rectangular groove 17. An internal threaded tube 19 is fixedly connected to the top of the rectangular groove 17. Bolts 20 are symmetrically arranged in the placement bottom shell 1, and gaskets 21 are respectively sleeved on the side walls of the two bolts 20. The top of the bolt 20 passes through the installation opening 3 and the circular hole 18 and extends into the internal threaded tube 19, and the gasket 21 contacts the bottom of the inner cavity of the placement bottom shell 1.

[0029] The thickness of the gasket 21 can be selected according to actual needs, which can improve the flexibility of use.

[0030] Among them, a noise reduction plate 10 is fixedly connected to the top of the top plate 9. The noise reduction plate 10 can reduce the collision sound when the punching block on the punching machine 2 descends and contacts the noise reduction plate 10, thereby improving the comfort of the working environment. The material of the noise reduction plate 10 is rubber.

[0031] In addition, a rubber pad 15 is fixedly connected to the top of the fixing plate 14, and the top of the rubber pad 15 is in contact with the bottom of the bottom shell 1. The rubber pad 15 can make the spring rebound after compression, so that the fixing plate 14 will not have a rigid collision with the bottom shell 1, and the cushioning of the rubber pad 15 can reduce the sound of the collision.

[0032] The distances between the three limit rods 7 are equal, so that when the top plate 9 is subjected to force, there will be no tilting phenomenon, which plays a role of being even in the hand and improves the safety of use.

[0033] Working principle: When using this technical solution, first place the bottom plate 4 on the bottom shell 1, and then threadably connect it with the internal threaded tube 19 through the bolt 20, so that the positioning plate 16 presses the top of the bottom plate 4. The pressing of the two positioning plates 16 on the bottom plate 4 can fix the position of the bottom plate 4. Next, put the spring to be tested on the middle limit rod 7, and then insert the three limit rods 7 into the limit holes 5, so that the limit rod 7 extends into the bottom shell 1. At the same time, the top end of the spring contacts the top plate 9, and the bottom end extends into the limit groove 6. Next, put the fixing plate 14 on the three limit rods 7, and adjust the height that the limit rod 7 can rise by turning the nut 12. In addition, the spring needs to be The top is in contact with the bottom of the top plate 9. Note that the two nuts 12 should be rotated to the same height on the limit rod 7 to avoid uneven force on the limit rod 7 pushed up by the spring. Next, start the punching machine 2, and the punching block on the punching machine 2 moves up and down repeatedly. When the punching block moves downward, it presses the noise reduction plate 10, so that the top plate 9 compresses the spring. When the punching block rises, the synchronized spring will push the top plate 9 and the limit rod 7 up through the rebound force. When the limit rod 7 rises to the limit position, the rubber pad 15 on the fixed plate 14 will contact the bottom of the inner cavity of the bottom shell 1, so as to limit the height of the spring rebound. This reciprocating process can test the service life of the spring, and effectively improve the safety of the test.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A vehicle tailgate cover spring life test device, comprising a bottom shell (1) and a punching machine (2), characterized in that: The placement bottom shell (1) is assembled on the front wall of the punching machine (2); the placement bottom shell (1) is provided with evenly distributed installation openings (3) on the top; a bottom plate (4) is provided on the top of the placement bottom shell (1); a limiting hole (5) is provided on the top of the bottom plate (4); three limiting holes (5) are provided; a limiting groove (6) is provided near the middle of the top of the bottom plate (4); limiting rods (7) are respectively provided in the three limiting holes (5); a top plate (9) is fixedly connected between the top ends of the three limiting rods (7); an adjustment mechanism is provided on the side wall of the limiting rod (7) near the bottom; and a fixing mechanism is symmetrically provided on the top of the placement bottom shell (1); the fixing mechanism is in contact with the top of the bottom plate (4).

2. The vehicle tailgate cover spring life test device according to claim 1, characterized in that: The adjustment mechanism comprises a fixing plate (14), a movable hole (8) matching the limiting rod (7) is formed on the top of the fixing plate (14), the bottom end of the limiting rod (7) passes through the installation opening (3) and the movable hole (8) and extends to the bottom of the fixing plate (14), and screw threads (11) are fixedly connected to the side walls of the limiting rod (7) on the left and right sides respectively, and nuts (12) are mounted on the side walls of the screw threads (11).

3. The vehicle tailgate cover spring life test device according to claim 1, characterized in that: The fixing mechanism comprises a positioning plate (16), the positioning plate (16) is arranged in an arc shape, a gasket (13) is symmetrically arranged on the top of the placement bottom shell (1), one side of the bottom of the positioning plate (16) contacts the top of the gasket (13), and the other side contacts the top of the bottom plate (4), a rectangular groove (17) is opened on the top of the positioning plate (16), a round hole (18) is opened on the top of the rectangular groove (17), an internal threaded tube (19) is fixedly connected to the top of the rectangular groove (17), bolts (20) are symmetrically arranged in the placement bottom shell (1), and gaskets (21) are respectively sleeved on the side walls of the two bolts (20), the top of the bolt (20) passes through the installation opening (3) and the round hole (18) and extends into the internal threaded tube (19), and the gasket (21) contacts the bottom of the inner cavity of the placement bottom shell (1).

4. The vehicle tailgate cover spring life test device according to claim 1, characterized in that: A noise reduction plate (10) is fixedly connected to the top of the top plate (9).

5. The vehicle tailgate cover spring life test device according to claim 2, characterized in that: A rubber pad (15) is fixedly connected to the top of the fixing plate (14), and the top of the rubber pad (15) is in contact with the bottom of the bottom shell (1).

6. The vehicle tailgate cover spring life test device according to claim 1, characterized in that: The distances between the three limiting rods (7) are equal.

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