Automobile control arm test fixture

Abstract

The utility model discloses an automobile control arm test clamp comprising a pedestal, the top of the pedestal is provided with two supporting frames, the top of each supporting frame is fixedly connected with an annular frame, the inner ring of each annular frame is provided with a fixing frame, the outer wall of each fixing frame is fixedly connected with a connecting block, and the inner wall of each fixing frame is slidably connected with a clamping plate. The connecting block is in sliding connection with the annular frame, and the connecting block is provided with a positioning mechanism. Through the threaded connection of the one-way lead screw and the fixing frame and the sliding fit of the clamping plates and the fixing frame, when the one-way lead screw is rotated, the clamping plates can linearly move, and the automobile control arm can be fixed through the two clamping plates arranged in a mirror image mode; the fixed automobile control arm can push the fixing frame to rotate with the circle point of the annular frame as the axis, after the automobile control arm is overturned to the needed face, the fixing frame can be fixed through the positioning mechanism, the automobile control arm does not need to be disassembled and assembled repeatedly, and convenience and rapidness are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts fixture technology, and particularly relates to automotive control arm test fixtures. Background Technology

[0002] The control arm is a crucial component of a car's chassis suspension system. It connects the wheels to the frame and absorbs and cushions impacts from the wheels during driving. There are many types and structures of automotive control arms, with single-piece and multi-piece control arms being the most common. Single-piece control arms utilize a one-piece stamping process, reducing welding, resulting in more controllable quality, lighter weight, and advantages for lightweight vehicle design. They also offer lower costs and greater market competitiveness.

[0003] The existing test fixture cannot be flipped after fixing the car control arm. When the car control arm needs to be flipped during tests such as pressure resistance, it needs to be removed from the test fixture and reinstalled, which is inconvenient to use. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] An automotive control arm test fixture includes a base, on the top of which two support frames are mounted. A ring frame is fixedly connected to the top of the support frames. A fixed frame is provided on the inner ring of the ring frame. A connecting block is fixedly connected to the outer wall of the fixed frame, and a clamping plate is slidably connected to the inner wall. The connecting block is slidably connected to the ring frame and is equipped with a positioning mechanism. One-way screws are rotatably connected to the sides of the two clamping plates that are far apart from each other. The one-way screws are threadedly connected to the side walls of the fixed frames.

[0006] As a preferred embodiment of the above technical solution, the top of the base is provided with a guide groove, and the bottom of the support frame is fixedly connected with a guide slider, which is slidably connected to the guide groove.

[0007] As a preferred embodiment of the above technical solution, the two support frames are threadedly connected to a bidirectional lead screw, and both ends of the bidirectional lead screw are fixedly connected to a crank handle and a bearing bracket, with the bearing bracket being fixedly connected to the base.

[0008] As a preferred embodiment of the above technical solution, the inner ring of the ring frame is provided with a groove, and a plurality of balls are provided in the groove, with the connecting block abutting against the balls.

[0009] As a preferred embodiment of the above technical solution, the positioning mechanism includes an elastic telescopic rod fixed to the side wall of the connecting block. A pull plate is fixedly connected to one end of the elastic telescopic rod away from the connecting block. An insert block is fixedly connected to one side of the pull plate. Several positioning plates are fixedly connected to one side of the ring frame. The insert block is inserted into the positioning plate.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. This utility model uses a one-way screw threaded connection with a fixed frame and a sliding fit between a clamping plate and a fixed frame. When the one-way screw is rotated, the clamping plate will move linearly. The car control arm can be fixed by two mirror-set clamping plates. After being fixed, the car control arm can push the fixed frame to rotate around the center of the ring frame. After the car control arm is flipped to the desired surface, it can be fixed by a positioning mechanism. There is no need to repeatedly disassemble and assemble the car control arm, which is convenient and quick.

[0012] 2. The support frame of this utility model can move on the platform of the base. By adjusting the distance between the two ring frames, it is convenient to fix car control arms of different lengths. Attached Figure Description

[0013] Figure 1 The diagram shown is a structural schematic of the vehicle control arm test fixture in the embodiment;

[0014] Figure 2 What is shown is Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0015] Explanation of reference numerals in the attached figures:

[0016] 10. Base; 11. Support frame; 12. Two-way lead screw; 13. Handle; 20. Ring frame; 21. Positioning plate; 22. Fixing frame; 23. Connecting block; 24. Clamping plate; 25. One-way lead screw; 30. Elastic telescopic rod; 31. Pull plate; 32. Insert block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Example

[0019] like Figure 1 and Figure 2 As shown, the automotive control arm test fixture includes a base 10. Two support frames 11 are mounted on the top of the base 10. A ring frame 20 is fixedly connected to the top of the support frame 11. A fixed frame 22 is provided on the inner ring of the ring frame 20. A connecting block 23 is fixedly connected to the outer wall of the fixed frame 22, and a clamping plate 24 is slidably connected to the inner wall. The connecting block 23 is slidably connected to the ring frame 20, and a positioning mechanism is installed on the connecting block 23. One-way screws 25 are rotatably connected to the side of the two clamping plates 24 that are far apart from each other. The one-way screws 25 are threadedly connected to the side wall of the fixed frame 22.

[0020] Specifically, through the threaded connection between the one-way lead screw 25 and the fixed frame 22, and the sliding engagement between the clamping plate 24 and the fixed frame 22, the clamping plate 24 will move linearly when the one-way lead screw 25 is rotated. The car control arm can be fixed by the two mirror-set clamping plates 24. After being fixed, the car control arm can push the fixed frame 22 to rotate around the dot of the ring frame 20. After the car control arm is flipped to the desired surface, it can be fixed by the positioning mechanism. There is no need to repeatedly disassemble and assemble the car control arm, which is convenient and quick.

[0021] like Figure 1 As shown, a guide groove is provided on the top of the base 10, and a guide slider is fixedly connected to the bottom of the support frame 11. The guide slider is slidably connected to the guide groove.

[0022] Specifically, through the sliding cooperation between the guide slider and the guide groove, the support frame 11 can move on the platform of the base 10, thereby adjusting the distance between the two ring frames 20, which facilitates the fixing of car control arms of different lengths.

[0023] like Figure 1 As shown, two support frames 11 are threadedly connected to a bidirectional lead screw 12. Both ends of the bidirectional lead screw 12 are fixedly connected to a crank handle 13 and a bearing frame. The bearing frame is fixedly connected to the base 10.

[0024] Specifically, turning the crank handle 13 drives the double-acting lead screw 12 to rotate in the bearing bracket. The double-acting lead screw 12, through its threaded engagement with the two support brackets 11, allows the two annular brackets 20 to move toward one side that is further away from or closer to each other.

[0025] like Figure 1 and Figure 2 As shown, the inner ring of the ring frame 20 has a groove, and several balls are arranged in the groove. The connecting block 23 abuts against the balls.

[0026] Specifically, by setting ball bearings, the friction between the connecting block 23 and the ring frame 20 can be reduced. While reducing wear, the fixing frame 22 can easily rotate around the dot of the ring frame 20.

[0027] like Figure 2 As shown, the positioning mechanism includes an elastic telescopic rod 30 fixed on the side wall of the connecting block 23. A pull plate 31 is fixedly connected to one end of the elastic telescopic rod 30 away from the connecting block 23. An insert block 32 is fixedly connected to one side of the pull plate 31. Several positioning plates 21 are fixedly connected to one side of the ring frame 20. The insert block 32 is inserted into the positioning plate 21.

[0028] Specifically, the force of the elastic telescopic rod 30 causes the pull plate 31 to move closer to the ring frame 20 without any external interference, keeping the insert block 32 in contact with the positioning plate 21. This prevents the fixed frame 22 from rotating in the inner ring of the ring frame 20. After the pull plate 31 is pulled and the insert block 32 is completely separated from the positioning plate 21, the fixed frame 22 can then rotate in the inner ring of the ring frame 20.

[0029] Working principle: Turning the crank handle 13 drives the double-acting screw 12 to rotate in the bearing bracket. The double-acting screw 12, through its threaded engagement with the two support brackets 11, allows the two ring brackets 20 to move to one side away from or close to each other. Through the threaded connection between the one-way screw 25 and the fixed bracket 22, and the sliding engagement between the clamping plate 24 and the fixed bracket 22, the clamping plate 24 will move linearly when the one-way screw 25 is rotated. The two mirror-shaped clamping plates 24 can fix the car control arm.

[0030] The force of the elastic telescopic rod 30 causes the pull plate 31 to move closer to the ring frame 20 without any external interference, keeping the insert block 32 in contact with the positioning plate 21. This prevents the fixed frame 22 from rotating in the inner ring of the ring frame 20. After the pull plate 31 is pulled and the insert block 32 is completely separated from the positioning plate 21, the fixed frame 22 can rotate in the inner ring of the ring frame 20.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A test fixture for an automotive control arm, comprising a base (10), characterized in that: Two support frames (11) are installed on the top of the base (10). A ring frame (20) is fixedly connected to the top of the support frame (11). A fixed frame (22) is provided on the inner ring of the ring frame (20). A connecting block (23) is fixedly connected to the outer wall of the fixed frame (22). A clamping plate (24) is slidably connected to the inner wall. The connecting block (23) is slidably connected to the ring frame (20). A positioning mechanism is installed on the connecting block (23). One-way screws (25) are rotatably connected to the two clamping plates (24) on the side away from each other. The one-way screws (25) are threadedly connected to the side wall of the fixed frame (22).

2. The automotive control arm test fixture according to claim 1, characterized in that, The top of the base (10) is provided with a guide groove, and the bottom of the support frame (11) is fixedly connected with a guide slider, which is slidably connected to the guide groove.

3. The automotive control arm test fixture according to claim 1, characterized in that, The two support frames (11) are threadedly connected to a bidirectional lead screw (12), and both ends of the bidirectional lead screw (12) are fixedly connected to a crank handle (13) and a bearing frame, and the bearing frame is fixedly connected to the base (10).

4. The automotive control arm test fixture according to claim 1, characterized in that, The inner ring of the ring frame (20) has a groove, and a number of balls are arranged in the groove. The connecting block (23) abuts against the balls.

5. The automotive control arm test fixture according to claim 1, characterized in that, The positioning mechanism includes an elastic telescopic rod (30) fixed on the side wall of the connecting block (23). A pull plate (31) is fixedly connected to one end of the elastic telescopic rod (30) away from the connecting block (23). An insert block (32) is fixedly connected to one side of the pull plate (31). Several positioning plates (21) are fixedly connected to one side of the ring frame (20). The insert block (32) is inserted into the positioning plate (21).

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