Inclined swing test bed for control arm ball head

Abstract

The utility model relates to the technical field of automobile part test equipment, in particular to an inclined swing test bench for a control arm ball head. The swing test bench comprises a swing test bench body and an inclination limiting mechanism which are matched with each other, a control arm ball head is clamped between the swing test bench body and the inclination limiting mechanism and swings and reciprocates along with rotation of the swing test bench body, and the swing test bench body comprises a circular rotating disc, a rotating mechanism and a clamping mechanism, the rotating mechanism comprises a rotating shaft and a rotating motor located in the center of the bottom of the turntable; the clamping mechanism comprises sliding rails arranged on the upper surface of the rotating disc at equal intervals, and clamping blocks are movably arranged in the sliding rails. The inclined limiting mechanism comprises a pushing block and a pushing motor located on the back of the limiting block. According to the utility model, the swing test bench and the inclined limiting mechanism are used for replacing manual work to pre-swing and pre-rotate the ball head, and preparation is made for subsequent measurement of the ball head end.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts testing equipment, specifically to a tilting swing test bench for a control arm ball head. Background Technology

[0002] In the production and testing of ball joints for automotive control arms, the ball joints need to be pre-rotated and pre-shaken to prepare for subsequent ball joint end measurements. However, existing technologies largely rely on manual operation, which has drawbacks such as difficulty in standardizing operations, high labor intensity for workers, and low automation levels in production lines. Furthermore, manual operation makes it difficult for the ball joint end to fully adapt to force changes in different directions, easily leading to stress concentration, accelerated ball joint wear, and consequently affecting the durability of the control arm ball joint. To address these issues, those skilled in the art have actively explored solutions. For example, Chinese Patent Publication No. CN216815U discloses a novel industrial valve rotation testing device that uses motor rotation to detect objects, achieving integrated handling and testing. However, this solution still has shortcomings: it cannot be used to test the ball joint of a control arm, the clamping effect is not ideal, the alternating forward and reverse rotation range is limited, making comprehensive testing difficult, and it is also prone to damaging the surface of the ball joint end. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tilting swing test table for the ball head of the control arm. The swing test table and tilting limit mechanism replace manual operation for the pre-swing and pre-rotation of the ball head, in preparation for subsequent ball head end measurement.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A tilting swing test bench for a control arm ball joint includes a matching swing test bench and a tilting limiting mechanism. The control arm ball joint is clamped between the swing test bench and the tilting limiting mechanism and performs a swinging reciprocating motion as the swing test bench rotates. The control arm ball joint includes a ball end and a rod end, wherein:

[0006] A swing test bench includes a circular turntable and a rotating mechanism and a clamping mechanism located on the turntable, wherein:

[0007] The rotating mechanism includes a rotating shaft located at the center of the bottom of the turntable and a rotating motor. The rotating motor drives the ball end on the turntable to rotate through the rotating shaft.

[0008] The clamping mechanism includes slide rails evenly spaced on the upper surface of the turntable, and clamping blocks movably disposed within the slide rails; the inner side of the clamping blocks is provided with arc-shaped grooves that mate with the ball end; the clamping blocks retract inward and clamp the ball end;

[0009] The tilting limiting mechanism includes a push block and a push motor located on the back of the limiting block. The push block is provided with a U-shaped groove that abuts against the periphery of the rod end. The push motor pushes the push block to the top of the ball end, so that the rod end is tilted and remains stationary. The ball end then swings back and forth relative to the rod end under the drive of the rotary motor.

[0010] This technical solution utilizes a swing test bench to clamp and rotate the ball end of the control arm ball joint, and a tilting limit mechanism to tilt and fix the rod end of the control arm ball joint. With the rod end maintaining an inclined orientation, the ball end rotates back and forth repeatedly from below, thus replacing manual pre-swinging and pre-rotation of the ball joint, preparing for subsequent ball end measurements. The tilting swing test bench is driven by a rotary motor and a drive motor, achieving standardized operation, reducing worker labor intensity, and improving the automation level of the production line. The pre-swinging and pre-rotation functions allow the ball end to adapt to force changes in different directions in advance, reducing stress concentration, reducing wear, and improving the durability of the control arm ball joint.

[0011] In addition, the tilting swing test bench for the control arm ball head proposed above according to this utility model may also have the following additional technical features:

[0012] According to one embodiment of the present invention, the ball head end includes an enlarged body and a shell that encloses the body, the body being able to rotate freely relative to the shell; the rod end is positioned upwards, and the rod end abuts against the U-shaped groove through a bushing.

[0013] In this technical solution, the ball head end of the control arm is the object of pre-rocking and pre-rotation; while the rod end is in an inclined state. The inclined setting, in conjunction with the pre-rocking and pre-rotation of the ball head end, allows the ball head end to obtain a larger swing and reciprocating motion space during the movement, making the pre-rocking and pre-rotation amplitude larger.

[0014] According to one embodiment of the present invention, the clamping block, the push block, and the bushing are all made of engineering plastic.

[0015] In this technical solution, the engineering plastic has good self-lubricating properties and a low coefficient of friction with the ball head of the control arm; during the movement of the clamping block and push block, the friction with the engineering plastic can be reduced, energy loss can be reduced, and movement efficiency can be improved; the bushing is made of engineering plastic, which can reduce wear with the end of the rod and ensure the smoothness and accuracy of the movement.

[0016] According to one embodiment of the present invention, the rotary motor drives the ball end to perform at least two rounds of forward rotation and two rounds of reverse rotation.

[0017] In this technical solution, forward and reverse rotations are performed alternately, allowing the ball head to adjust its position and orientation in multiple directions and angles. This enables the ball head to adapt to changes in force in different directions in advance, reducing stress concentration.

[0018] According to one embodiment of the present invention, the clamping blocks are provided in three sets, with each set of clamping blocks spaced 120° apart, and a rack at the bottom of each set is provided to cooperate with the slide rail.

[0019] In this technical solution, the clamping blocks apply a uniform and stable clamping force to the ball end. Regardless of the direction of the force applied to the ball end, the three sets of clamping blocks work together to effectively prevent the ball end from shaking or shifting. The distributed force avoids local stress concentration and reduces damage to the surfaces of the clamping blocks and the ball end. The rack and pinion restricts the displacement of the clamping blocks in the direction perpendicular to the slide rail, preventing the clamping blocks from detaching from the slide rail during movement or clamping.

[0020] According to one embodiment of the present invention, the bottom of the clamping block is connected to the umbrella-shaped teeth at the piston end of the cylinder via a rack. The cylinder is located inside the turntable, and the umbrella-shaped teeth at the piston end of the cylinder drive the rack to move linearly, thereby driving the three clamping blocks to move synchronously.

[0021] In this technical solution, when the piston end of the cylinder moves, the bevel teeth at the piston end extend and retract, thereby driving the rack that meshes with it to move, causing the clamping block to move linearly along the rack axis, thus realizing the extension and retraction action.

[0022] According to one embodiment of the present invention, the top of the clamping block is provided with a threaded hole, and a screw connected to the rack is provided in the threaded hole.

[0023] According to one embodiment of the present invention, the opening of the U-shaped groove of the push block is provided facing the end of the rod body, and the opening of the U-shaped groove is provided with an arc surface that facilitates the control of the swinging and reciprocating motion of the arm ball head.

[0024] In this technical solution, when the rod end swings back and forth, the arc surface can guide the rod end to smoothly enter and exit the U-shaped groove while ensuring that the rod end does not leave the U-shaped groove, thereby reducing the impact and vibration during the movement and providing a certain degree of freedom of movement for the rod end.

[0025] Compared with the prior art, this utility model has the following advantages:

[0026] (1) By using a rotary motor and a drive motor, the operation is standardized, replacing manual pre-rocking and pre-rotation of the ball head, reducing the labor intensity of workers and improving the automation level of the production line.

[0027] (2) The pre-rocking, pre-rotation and forward and reverse rotation functions enable the ball head end to adapt to different force changes in different directions, reduce stress concentration, reduce wear and improve the durability of the control arm ball head; the three sets of clamps apply force evenly and distribute the force, reducing damage to the surface of the ball head end. Attached Figure Description

[0028] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0029] Figure 2 This is the second structural schematic diagram of this utility model.

[0030] In the diagram: 1. Turntable; 2. Ball end; 3. Clamping block; 4. Rack; 5. Rod end; 6. Push block; 7. Push motor; 8. U-shaped groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1

[0033] like Figures 1 to 2 As shown, this embodiment provides a tilting swing test table for a control arm ball joint, including a matching swing test table and a tilting limiting mechanism. The control arm ball joint is clamped between the swing test table and the tilting limiting mechanism, and performs a swinging reciprocating motion as the swing test table rotates. The control arm ball joint includes a ball end 2 and a rod end 5, wherein:

[0034] The swing test bench includes a circular turntable 1 and a rotating mechanism and a clamping mechanism located on the turntable 1, wherein:

[0035] The rotating mechanism includes a rotating shaft located at the center of the bottom of the turntable 1 and a rotating motor. The rotating motor drives the ball end 2 on the turntable 1 to rotate through the rotating shaft.

[0036] The clamping mechanism includes slide rails evenly spaced on the upper surface of the turntable 1, and a clamping block 3 is movably disposed within the slide rails; the inner side of the clamping block 3 is provided with an arc-shaped groove that mates with the ball end 2; the clamping block 3 retracts inward and clamps the ball end 2.

[0037] The tilting limiting mechanism includes a push block 6 and a push motor 7 located on the back of the limiting block. The push block 6 is provided with a U-shaped groove 8 that abuts against the periphery of the rod end 5. The push motor 7 pushes the push block 6 to the top of the ball end 2, so that the rod end 5 is tilted and remains stationary. The ball end 2 then swings back and forth relative to the rod end 5 under the drive of the rotary motor.

[0038] like Figures 1 to 2As shown, this technical solution uses a swing test bench to clamp and rotate the ball end 2 of the control arm ball head, and a tilting limiting mechanism to tilt and fix the rod end 5 of the control arm ball head. When the rod end 5 is kept tilted, the ball end 2 rotates back and forth multiple times from below, thus replacing manual pre-swing and pre-rotation of the ball head, preparing for subsequent measurement of the ball end 2. The tilting swing test bench is driven by a rotary motor and a drive motor 7, thereby achieving standardized operation, reducing worker labor intensity, and improving the automation level of the production line. The pre-swing and pre-rotation functions allow the ball end 2 to adapt to force changes in different directions in advance, reducing stress concentration, reducing wear, and improving the durability of the control arm ball head.

[0039] In addition, the tilting swing test bench for the control arm ball head proposed above according to this utility model may also have the following additional technical features:

[0040] According to one embodiment of the present invention, the ball head end 2 includes an enlarged body and a shell that encloses the body, the body being able to rotate freely relative to the shell; the rod end 5 is positioned upwards, and the rod end 5 abuts against the U-shaped groove 8 through a bushing.

[0041] In this technical solution, the ball end 2 of the control arm ball head is the object of pre-rocking and pre-rotation; while the rod end 5 is in an inclined state. The inclined setting, in conjunction with the pre-rocking and pre-rotation of the ball end 2, allows the ball end 2 to obtain a larger swing and reciprocating motion space during the movement, making the pre-rocking and pre-rotation amplitude larger.

[0042] According to one embodiment of the present invention, the clamping block 3, the push block 6, and the bushing are all made of engineering plastic.

[0043] In this technical solution, the engineering plastic has good self-lubricating properties and a low coefficient of friction with the ball head of the control arm; during the movement of the clamping block 3 and the push block 6, the friction with the engineering plastic can be reduced, energy loss can be reduced, and movement efficiency can be improved; the bushing is made of engineering plastic, which can reduce wear with the rod end 5 and ensure the smoothness and accuracy of the movement.

[0044] According to one embodiment of the present invention, the rotary motor drives the ball end 2 to perform at least two rounds of forward rotation and two rounds of reverse rotation.

[0045] In this technical solution, forward and reverse rotations are performed alternately, allowing the ball end 2 to adjust its position and orientation in multiple directions and angles, enabling the ball end 2 to adapt to force changes in different directions in advance and reducing stress concentration.

[0046] According to one embodiment of the present invention, the clamping block 3 is provided in three sets, with each set of clamping blocks 3 spaced 120° apart, and a rack 4 at its bottom that cooperates with the slide rail.

[0047] In this technical solution, the clamping block 3 applies a uniform and stable clamping force to the ball end 2. Regardless of the direction of the force applied to the ball end 2, the three sets of clamping blocks 3 can work together to effectively prevent the ball end 2 from shaking or shifting. The distributed force method can avoid local stress concentration and reduce damage to the surfaces of the clamping block 3 and the ball end 2. The rack 4 can limit the displacement of the clamping block 3 in the direction perpendicular to the slide rail, preventing the clamping block 3 from detaching from the slide rail during movement or clamping.

[0048] According to one embodiment of the present invention, the bottom of the clamping block 3 is connected to the umbrella-shaped teeth at the piston end of the cylinder via a rack. The cylinder is located inside the turntable, and the umbrella-shaped teeth at the piston end of the cylinder drive the rack to move linearly, thereby driving the three clamping blocks 3 to move synchronously.

[0049] In this technical solution, when the piston end of the cylinder moves, the bevel teeth at the piston end extend and retract, thereby driving the rack that meshes with it to move, causing the clamping block to move linearly along the rack axis, thus realizing the extension and retraction action.

[0050] According to one embodiment of the present invention, the top of the clamping block 3 is provided with a threaded hole, and a screw connected to the rack is provided in the threaded hole.

[0051] The usage process of the above embodiments is as follows:

[0052] During operation, the control arm ball head is first placed between the swing test table and the tilt limit mechanism. The ball end 2 of the control arm ball head is vertically placed in the clamping block 3. The cylinder is located in the turntable, and the beveled teeth at the piston end of the cylinder drive the rack to move linearly. The three clamping blocks 3, which are spaced 120° apart and have racks 4, move inward synchronously along the slide rail. The arc-shaped grooves on their inner sides evenly and stably clamp the ball end 2, preventing shaking and displacement and reducing surface damage. Next, the rod end 5 of the control arm ball head is vertically placed in the push block 6. The push motor 7 pushes the push block 6 so that its U-shaped groove 8 abuts against the periphery of the rod end 5. The rod end 5 abuts against the U-shaped groove 8 through the bushing, and is in an inclined state and fixed. Then, the rotary motor drives the turntable 1 to rotate through the rotary shaft, thereby causing the ball end 2 to rotate. It performs at least two rounds of forward rotation and two rounds of reverse rotation, allowing the ball end 2 to adjust its position and posture in multiple directions and angles to adapt to different force changes. At the same time, the rod end 5 is tilted and fixed, and the ball end 2 swings back and forth repeatedly from below it to achieve pre-swing and pre-rotation, preparing for subsequent measurements.

[0053] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A tilting swing test bench for a control arm ball head, characterized in that, It includes a matching swing test table and a tilting limiting mechanism. The ball head of the control arm is clamped between the swing test table and the tilting limiting mechanism, and swings back and forth as the swing test table rotates. The ball head of the control arm includes a ball end (2) and a rod end (5), wherein: The swing test bench includes a circular turntable (1) and a rotating mechanism and a clamping mechanism located on the turntable (1), wherein: The rotating mechanism includes a rotating shaft located at the center of the bottom of the turntable (1) and a rotating motor. The rotating motor drives the ball end (2) on the turntable (1) to rotate through the rotating shaft. The clamping mechanism includes slide rails evenly spaced on the upper surface of the turntable (1), and a clamping block (3) is movably arranged inside the slide rail; the inner side of the clamping block (3) is provided with an arc-shaped groove that matches the ball end (2); the clamping block (3) retracts inward and clamps the ball end (2); The tilting limiting mechanism includes a push block (6) and a push motor (7) located on the back of the limiting block. The push block (6) is provided with a U-shaped groove (8) that abuts against the periphery of the rod end (5). The push motor (7) pushes the push block (6) to move to the top of the ball end (2), so that the rod end (5) is tilted and remains stationary. The ball end (2) swings back and forth relative to the rod end (5) under the drive of the rotary motor.

2. The tilting swing test bench for the control arm ball head as described in claim 1, characterized in that, The ball head end (2) includes an enlarged body and a shell that encloses the body, and the body rotates freely relative to the shell; the rod end (5) is set upward, and the rod end (5) abuts against the U-shaped groove (8) through a bushing.

3. The tilting swing test bench for the control arm ball head as described in claim 2, characterized in that, The clamping block (3), push block (6), and bushing are all made of engineering plastic.

4. The tilting swing test bench for the control arm ball head as described in claim 1, characterized in that, The rotary motor drives the ball end (2) to perform at least two rounds of forward rotation and two rounds of reverse rotation.

5. The tilting swing test bench for the control arm ball head as described in claim 1, characterized in that, The clamping block (3) is provided in three sets, with each set of clamping blocks (3) spaced 120° apart, and a rack (4) is provided at its bottom to cooperate with the slide rail.

6. The tilting swing test bench for the control arm ball head as described in claim 5, characterized in that, The bottom of the clamping block (3) is connected to the umbrella-shaped teeth at the piston end of the cylinder via a rack (4). The cylinder is located inside the turntable. The umbrella-shaped teeth at the piston end of the cylinder drive the rack to move linearly, thereby driving the three clamping blocks (3) to move synchronously.

7. The tilting swing test bench for the control arm ball head as described in claim 6, characterized in that, The top of the clamping block (3) is provided with a threaded hole, and a screw connected to the rack is provided in the threaded hole.

8. The tilting swing test bench for the control arm ball head as described in claim 1, characterized in that, The opening of the U-shaped groove (8) of the push block (6) is set towards the end of the rod (5), and the opening of the U-shaped groove (8) is provided with an arc surface that makes it easy to control the swinging back and forth of the arm ball head.

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