Ball head clamping device for automobile swing arm ball head torque detection

Abstract

The utility model provides a ball head clamping device for automobile swing arm ball head torque detection, and relates to the technical field of spherical hinge detection equipment, the ball head clamping device comprises a spring chuck, a plurality of valve opening grooves are circumferentially distributed on the spring chuck, the spring chuck is divided into a plurality of chuck valves by the plurality of valve opening grooves, each chuck valve is embedded with an anti-pinch block, and the anti-pinch block is embedded in the chuck valve. And the anti-pinch blocks are detachably arranged on the inner walls of the chuck petals. The ball head can be protected in the process of clamping the ball head, and the surface of the ball head is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball hinge detection equipment technical field, specifically, relate to a kind of ball head clamping device for automobile swing arm ball head torque detection. BACKGROUND

[0002] Automobile swing arm is as the guiding and force transmission element of automobile suspension system, and is connected together by ball hinge or bushing with elasticity, and various forces (longitudinal force, lateral force and torque when bearing braking, starting, steering) on the wheel are transmitted to the vehicle body, while ensuring that the wheel moves according to a certain trajectory.

[0003] The rotational torque of the ball head is one of the key parameters for judging the performance of the ball hinge. After the riveting is completed, the rotational torque of the ball head is detected. During the detection, the torque detection machine carries the spring chuck down, the spring chuck wraps around the ball pin and applies a clamping force, and then the spring chuck rotates to drive the ball pin to rotate. The size of the rotational torque is read by the sensor of the equipment. During the torque measurement, the spring chuck may damage the surface treatment layer of the ball head, causing the surface treatment layer to fall off and causing the ball pin to rust, affecting the service life of the ball pin and the safety of the vehicle. SUMMARY

[0004] The utility model aims at providing a ball head clamping device for automobile swing arm ball head torque detection, which can protect the ball head during clamping to prevent damage to the surface of the ball head.

[0005] The utility model realizes the following technical scheme: a ball head clamping device for automobile swing arm ball head torque detection, comprising a spring chuck, a plurality of opening slots are distributed circumferentially on the spring chuck, the plurality of opening slots separate the spring chuck into a plurality of chuck petals, a anti-injury block is embedded on each chuck petal, and the anti-injury block is detachably arranged on the inner wall of the chuck petal.

[0006] Further, a connecting screw is arranged on the anti-injury block, and a threaded hole is formed on the chuck petal for inserting the connecting screw.

[0007] Further, the number of chuck petals is odd, an arc-shaped notch is formed on both sides of each chuck petal, and a screw through hole is formed between the arc-shaped notches of adjacent two chuck petals for the connecting screw to pass through.

[0008] Further, a countersunk hole is formed on the anti-injury block, and the head of the connecting screw is located in the countersunk hole.

[0009] Further, an arc-shaped chamfer is arranged at the end of the anti-injury block facing the opening part of the spring chuck.

[0010] Further, the hardness of the anti-injury block is less than the hardness of the ball head.

[0011] Further, the anti-pinch block is a nylon block.

[0012] Further, the anti-pinch block is a copper block, a polyformal block or a Teflon block.

[0013] The technical scheme of the utility model has at least the following advantages and beneficial effects:

[0014] 1. The utility model discloses a spring chuck is added with the anti-pinch block of smaller hardness in the inside, is not easy to cause the surface treatment layer of ball head to be destroyed in the process of clamping ball head, and the stability after clamping is enhanced, avoids the slippage between spring chuck and ball head in the process of clamping rotation.

[0015] 2. The utility model discloses a spring chuck is added with the anti-pinch block of smaller hardness in the inside, is not easy to cause the surface treatment layer of ball head to be destroyed in the process of clamping ball head, and the stability after clamping is enhanced, avoids the slippage between spring chuck and ball head in the process of clamping rotation. DRAWINGS

[0016] Figure 1 It is the whole structure schematic view of the utility model;

[0017] Figure 2 It is the installation structure schematic view of the anti-pinch block of the utility model on the chuck petal;

[0018] The drawing mark: 1-spring chuck, 11-split groove, 12-chuck petal, 121-arc-shaped notch, 122-screw through hole, 2-anti-pinch block, 21-connecting screw, 22-counter bore, 23-arc-shaped chamfer. CONCRETE IMPLEMENTING METHOD

[0019] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will combine the drawing in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiment of the utility model provided in the drawing is not intended to limit the scope of the claimed utility model, but only represents the selected embodiment of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the scope of protection of the utility model.

[0021] Embodiment 1

[0022] The following is for reference Figure 1 , Figure 2 As shown in the illustration, and further explained with reference to a specific embodiment, this embodiment provides a ball joint clamping device for detecting the torque of a car swing arm ball joint, including a spring collet 1. The spring collet 1 has multiple circumferentially distributed slots 11, which divide the spring collet 1 into multiple collet segments 12. Each collet segment 12 is embedded with an anti-pinch block 2, which can be detachably installed on the inner wall of the collet segment 12. The hardness of the anti-pinch block 2 is less than that of the ball joint to prevent damage to the coating on the surface of the ball joint during the rotation of the ball joint by the spring collet 1, and to reduce the possibility of slippage between the collet segment 12 and the ball joint during clamping. When the anti-pinch block 2 is damaged, the damaged anti-pinch block 2 can be removed and a new anti-pinch block 2 can be installed, thus continuing to clamp the ball joint. When it is necessary to clamp different types of ball joints, the diameter of the ball joint clamping part can be adapted by replacing the anti-pinch block 2 with one of different thicknesses.

[0023] In this embodiment, the anti-pinch block 2 is a nylon block. Since nylon is a soft material, it will not scratch or damage the coating on the product surface. In other embodiments, the anti-pinch block 2 can also be a copper block, a polyoxymethylene block, or a Teflon block, as long as its hardness is lower than that of the ball head.

[0024] Reference Figure 2 As shown, the anti-pinch block 2 has a countersunk hole 22, and a connecting screw 21 is disposed in the countersunk hole 22. The chuck flap 12 has a threaded hole for the connecting screw 21 to be inserted. The anti-pinch block 2 is detachably connected to the chuck flap 12 by means of screw connection, so as to facilitate the installation and removal of the anti-pinch block 2. The head of the connecting screw 21 is located in the countersunk hole 22, so it will not obstruct the clamping process. In this embodiment, each anti-pinch block 2 is provided with two connecting screws 21. Under the combined action of the two connecting screws 21, the anti-pinch block 2 is not easy to rotate and cause misalignment. In other embodiments, three connecting screws 21 can also be provided to further enhance the positioning effect of the anti-pinch block 2.

[0025] The number of chuck flaps 12 is odd. In this embodiment, the number of flap grooves 11 is set to three. The three flap grooves 11 divide the spring collet 1 into three chuck flaps 12 at the open end. Each flap groove 11 corresponds to the center position of one of the chuck flaps 12 in the width direction. Arc-shaped notches 121 are provided on both sides of the chuck flaps 12. A screw through hole 122 is formed between the arc-shaped notches 121 of two adjacent chuck flaps 12 for the connecting screw 21 to pass through. When the anti-pinch block 2 is installed to or removed from the chuck flap 12 by the connecting screw 21, the operator can pass a screwdriver through the screw through hole 122 to tighten or loosen the connecting screw 21, thereby facilitating the installation and disassembly process. In other embodiments, the number of chuck flaps 12 can also be even. When the number of chuck flaps 12 is even, the connecting screw 21 should be an internal hex screw for easy installation.

[0026] Reference Figure 1 , Figure 2 As shown, the anti-pinch block 2 has an arc-shaped chamfer 23 at one end facing the opening of the spring chuck 1. When there is a certain deviation in the position of the ball head, that is, when the ball head is not placed in the completely accurate position, the arc-shaped chamfer 23 can guide the ball head to ensure the accuracy of the ball head's position when it is clamped. At the same time, because the anti-pinch block 2 has low hardness, even if the anti-pinch block 2 collides with the ball head when the spring chuck 1 descends, it is not easy to cause damage to the surface of the ball head.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ball joint clamping device for detecting the ball joint torque of an automotive swing arm, comprising a spring clamp (1), wherein the spring clamp (1) has a plurality of circumferentially distributed opening grooves (11), the plurality of opening grooves (11) dividing the spring clamp (1) into a plurality of clamping lobes (12), characterized in that, Each of the clamping flaps (12) is embedded with an anti-pinch block (2), and the anti-pinch block (2) can be detachably installed on the inner wall of the clamping flap (12).

2. The ball joint clamping device for detecting the ball joint torque of an automotive swing arm according to claim 1, characterized in that, The anti-pinch block (2) is equipped with a connecting screw (21), and the chuck (12) is provided with a threaded hole for the connecting screw (21) to be inserted.

3. The ball joint clamping device for detecting the ball joint torque of an automotive swing arm according to claim 2, characterized in that, The number of the clamping flaps (12) is odd. Each clamping flap (12) has an arc-shaped notch (121) on both sides. A screw through hole (122) is formed between the arc-shaped notches (121) of two adjacent clamping flaps (12) for the connecting screw (21) to pass through.

4. The ball joint clamping device for detecting the ball joint torque of an automotive swing arm according to claim 2 or 3, characterized in that, The anti-pinch block (2) has a countersunk hole (22), and the head of the connecting screw (21) is located in the countersunk hole (22).

5. The ball joint clamping device for detecting the ball joint torque of an automotive swing arm according to claim 1, characterized in that, The anti-pinch block (2) has an arc-shaped chamfer (23) at one end facing the opening of the spring clip (1).

6. The ball joint clamping device for detecting the ball joint torque of an automotive swing arm according to claim 1, characterized in that, The hardness of the anti-pinch block (2) is less than that of the ball head.

7. The ball joint clamping device for detecting the ball joint torque of an automotive control arm according to claim 6, characterized in that, The anti-pinch block (2) is a nylon block.

8. The ball joint clamping device for detecting the ball joint torque of an automotive control arm according to claim 6, characterized in that, The anti-pinch block (2) is a copper block, a polyoxymethylene block, or a Teflon block.

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