A test ball head tool for a vehicle steering knuckle

Abstract

This utility model relates to a test ball joint fixture for an automotive steering knuckle, comprising a fixture transmission rod, a ball pin pressure plate, and a positioning ball pin. One end of the fixture transmission rod is bent downwards to form a mating portion, and the other end of the fixture transmission rod is bent downwards to form a ball pin mounting portion. A ball groove is provided in the middle of the ball pin mounting portion near the mating portion, and a positioning ball pin is mounted on the ball groove. A ball pin pressure plate is mounted on the ball pin mounting portion to press down the positioning ball pin, and the positioning ball pin passes through the ball pin pressure plate. A limiting cone is provided on the positioning ball pin. This utility model features reduced cost, easy replacement, simple structure, and convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of parts verification tooling technology, and in particular to a test ball joint tooling for an automobile steering knuckle. Background Technology

[0002] With the development of the automotive industry, the steering knuckle is one of the main components of the automotive steering axle. It enables the car to drive stably and transmit driving direction sensitively. Its function is to bear the load of the front and rear of the car, support and drive the wheels to rotate around the kingpin to steer the car. Due to the key role of the steering knuckle in automotive parts, its performance reliability is crucial. Therefore, it is necessary to conduct strength tests on the steering knuckle. However, due to the complexity of its structure and the harshness of its service conditions, the testing and verification of the steering knuckle has become a challenge. Furthermore, in the strength test of the steering knuckle, the locking bolts and nuts cannot simulate the rotation of the ball joint. In order to facilitate the simulation of the rotation of the ball joint in the strength test, a new tooling structure needs to be designed. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a test ball joint fixture for automobile steering knuckles, which simulates the force value of the steering knuckle under the swing arm under the actual vehicle conditions, greatly improving the verification efficiency of steering knuckles, and has the characteristics of reducing costs, easy replacement, simple structure and easy installation.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a test ball joint tooling for an automobile steering knuckle is provided, including a tooling transmission rod, a ball pin pressure plate, and a positioning ball pin. One end of the tooling transmission rod is bent downward to form a mating part, and the other end of the tooling transmission rod is bent downward to form a ball pin mounting part. A ball groove is provided in the middle of the side of the ball pin mounting part near the mating part. A positioning ball pin is installed on the ball groove. A ball pin pressure plate is installed on the ball pin mounting part to press down the positioning ball pin. The positioning ball pin passes through the ball pin pressure plate, and a limit cone rod is provided on the positioning ball pin.

[0005] In this technical solution, a tooling transmission rod is set up to connect with the force sensor and the positioning ball pin, so that when the positioning ball pin receives an external force, the force can be transmitted to the force sensor, allowing the force sensor to obtain force parameters. A ball pin pressure plate is set up to limit the position of the positioning ball pin, a ball groove is set up to simulate the rotation of the positioning ball pin, and a limiting cone rod is set up to facilitate the docking of the positioning ball pin and the steering knuckle, so that when the steering knuckle is running in simulation, the force change can be transmitted to the positioning ball pin.

[0006] As a supplement to this technical solution, the two ends of the ball pin pressure plate are connected to the ball pin mounting part by two bolts, and the bolts facilitate the disassembly and assembly of the ball pin pressure plate.

[0007] As a supplement to this technical solution, the ball pin pressure plate is provided with a spherical conical surface on the side near the ball pin mounting part. The spherical conical surface and the ball groove form a spherical receiving cavity. By providing the spherical conical surface, the ball pin pressure plate can be tightly attached to the ball of the positioning ball pin.

[0008] As a supplement to this technical solution, the docking part is provided with a connecting hole that extends through the front and rear sides. By providing the connecting hole, it is convenient for the docking part and the force sensor to dock.

[0009] As a supplement to this technical solution, the positioning ball pin includes a ball, an extension rod, a limiting cone rod, and a guide rod. The ball is installed in the ball groove. One end of the ball is provided with an extension rod that passes through the ball pin pressure plate. The end of the extension rod is provided with a limiting cone rod with a gradually decreasing diameter. The end of the limiting cone rod is provided with a guide rod.

[0010] By setting an extension rod, a jamming connection between the extension rod and the ball pin pressure plate is avoided, thus simulating the rotation of the ball. A limiting cone rod is set to ensure that the limiting cone rod is inserted into the universal joint mating hole to form a match. A guide rod is set to facilitate the installation of the positioning ball pin.

[0011] Beneficial effects: This utility model relates to a test ball joint fixture for automotive steering knuckles. A transmission rod is provided to connect the fixture to a force sensor and a positioning ball pin, allowing the force sensor to transmit external force to the positioning ball pin and obtain force parameters. A ball pin pressure plate limits the position of the positioning ball pin, a ball groove simulates the rotation of the positioning ball pin, and a limiting cone facilitates the docking of the positioning ball pin and the steering knuckle. During simulated steering knuckle operation, force changes are transmitted to the positioning ball pin, simulating the rocker arm force experienced by the steering knuckle under real vehicle conditions. This significantly improves the verification efficiency of the steering knuckle and also features reduced costs, easy replacement, simple structure, and convenient installation. Attached Figure Description

[0012] Figure 1 This is a structural view of the present invention;

[0013] Figure 2 This is a structural view of the positioning ball pin described in this utility model;

[0014] Figure 3 This is a structural view of the spherical conical surface described in this utility model;

[0015] Figure 4 This is a structural view of the positioning ball pin mounting location described in this utility model.

[0016] Illustration: 1. Tooling transmission rod, 2. Ball pin mounting part, 3. Ball groove, 4. Connecting hole, 5. Ball pin pressure plate, 6. Positioning ball pin, 7. Spherical cone surface, 8. Ball, 9. Extending rod, 10. Limiting cone rod, 11. Guide rod, 12. Connecting part. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0018] The present invention relates to a test ball joint fixture for an automobile steering knuckle, such as... Figure 1 — Figure 4 As shown, the device includes a tooling transmission rod 1, a ball pin pressure plate 5, and a positioning ball pin 6. One end of the tooling transmission rod 1 is bent downward to form a docking part 12, and the other end of the tooling transmission rod 1 is bent downward to form a ball pin mounting part 2. A ball groove 3 is provided in the middle of the ball pin mounting part 2 near the docking part 12. The positioning ball pin 6 is installed on the ball groove 3. The ball pin pressure plate 5 is installed on the ball pin mounting part 2 to press down the positioning ball pin 6. The positioning ball pin 6 passes through the ball pin pressure plate 5, and a limit cone rod 10 is provided on the positioning ball pin 6.

[0019] In this technical solution, a tooling transmission rod 1 is set to connect with the force sensor and the positioning ball pin 6, so that when the positioning ball pin 6 receives an external force, the force can be transmitted to the force sensor, allowing the force sensor to obtain force parameters. A ball pin pressure plate 5 is set to limit the position of the positioning ball pin 6, a ball groove 3 is set to simulate the rotation of the positioning ball pin 6, and a limiting cone rod 10 is set to facilitate the docking of the positioning ball pin 6 and the steering knuckle, so that when the steering knuckle is running in a simulated manner, the change in force can be transmitted to the positioning ball pin 6.

[0020] As a supplement to this technical solution, the two ends of the ball pin pressure plate 5 are connected to the ball pin mounting part 2 by two bolts, and the bolts facilitate the disassembly and assembly of the ball pin pressure plate 5.

[0021] As a supplement to this technical solution, the ball pin pressure plate 5 is provided with a spherical conical surface 7 on the side near the ball pin mounting part 2. The spherical conical surface 7 and the ball groove 3 form a spherical receiving cavity. By providing the spherical conical surface 7, the ball pin pressure plate 5 can be tightly attached to the ball 8 of the positioning ball pin 6.

[0022] As a supplement to this technical solution, the docking part 12 is provided with a connecting hole 4 that extends through the front and rear sides. By providing the connecting hole 4, it is convenient for the docking part 12 and the force sensor to dock.

[0023] As a supplement to this technical solution, the positioning ball pin 6 includes a ball 8, an extension rod 9, a limiting cone rod 10, and a guide rod 11. The ball 8 is installed in the ball groove 3. One end of the ball 8 is provided with an extension rod 9 that passes through the ball pin pressure plate 5. The end of the extension rod 9 is provided with a limiting cone rod 10 with a gradually decreasing diameter. The end of the limiting cone rod 10 is provided with a guide rod 11.

[0024] By setting the extension rod 9, a jamming connection between the extension rod 9 and the ball pin pressure plate 5 is avoided, thereby simulating the rotation of the ball 8. The limiting cone rod 10 is set to ensure that the limiting cone rod 10 is inserted into the universal joint docking hole to form a match. The guide rod 11 is set to facilitate the installation of the positioning ball pin 6.

[0025] Example

[0026] When using this device, the number of units installed can be selected according to the structure of the universal joint. First, install the universal joint on the universal joint test fixture, and then attach the device. At the locations where the spherical drive shaft needs to be installed on the universal joint, force sensors for sensing force changes are installed. The fixture drive rod 1 is installed on the sensing end of the force sensor. The mating part 12 of the fixture drive rod 1 is quickly connected to the force sensor via a longitudinal mating pin. After completion, the positioning ball pin 6 is inserted into the hole to be measured in the universal joint. The limiting cone rod 10 will fit against the hole. Then, the positioning... The ball 8 of the ball pin 6 is connected to the ball groove 3. After completion, the ball pin pressure plate 5 is installed. The spherical conical surface 7 of the ball pin pressure plate 5 presses down on the ball 8, ensuring that the ball 8 can rotate within the spherical cavity formed by the spherical conical surface 7 and the ball groove 3. After completion, the equipment is started to simulate the state when the car starts. The equipment starts and drives the universal joint test fixture. The universal joint test fixture vibrates and shakes. The universal joint pushes the positioning ball pin 6. When the positioning ball pin 6 moves to the limit position, it will transmit the resistance to the force sensor. The force sensor will record the force value to facilitate the test to determine the optimal position of the universal joint transmission part.

Claims

1. A test ball joint fixture for an automobile steering knuckle, characterized in that: The assembly includes a tooling transmission rod (1), a ball pin pressure plate (5), and a positioning ball pin (6). One end of the tooling transmission rod (1) is bent downward to form a docking part (12), and the other end of the tooling transmission rod (1) is bent downward to form a ball pin mounting part (2). A ball groove (3) is provided in the middle of the side of the ball pin mounting part (2) near the docking part (12). A positioning ball pin (6) is installed on the ball groove (3). A ball pin pressure plate (5) is installed on the ball pin mounting part (2) to press down the positioning ball pin (6). The positioning ball pin (6) passes through the ball pin pressure plate (5). A limit cone rod (10) is provided on the positioning ball pin (6).

2. The test ball joint fixture for an automobile steering knuckle according to claim 1, characterized in that: The two ends of the ball pin pressure plate (5) are connected to the ball pin mounting part (2) by two bolts.

3. The test ball joint fixture for an automobile steering knuckle according to claim 1, characterized in that: The ball pin pressure plate (5) is provided with a spherical conical surface (7) on the side near the ball pin mounting part (2), and the spherical conical surface (7) and the ball groove (3) form a spherical receiving cavity.

4. The test ball joint fixture for an automobile steering knuckle according to claim 1, characterized in that: The docking part (12) is provided with a connecting hole (4) that extends through the front and rear sides.

5. The test ball joint fixture for an automobile steering knuckle according to claim 1, characterized in that: The positioning ball pin (6) includes a ball (8), an extension rod (9), a limiting cone rod (10), and a guide rod (11). The ball (8) is installed in the ball groove (3). One end of the ball (8) is provided with an extension rod (9) that passes through the ball pin pressure plate (5). The end of the extension rod (9) is provided with a limiting cone rod (10) with a gradually decreasing diameter. The end of the limiting cone rod (10) is provided with a guide rod (11).

Images