Special fixture for precise grinding of ball head of steering ball pin

Abstract

The utility model discloses a special fixture for precise grinding of a ball head of a steering ball pin, which comprises a bottom plate, the bottom plate is rotatably connected with the outer side of a cylinder, the outer side of the cylinder is fixedly connected with a driven gear, the bottom surface of the bottom plate is fixedly connected with a mounting frame, a rotating motor is fixedly mounted on the mounting frame, and the output end of the rotating motor is fixedly connected with a movable gear. A limiting groove is formed in the surface of the rotating plate, a sliding rod is arranged in the limiting groove, the top of the sliding rod is fixedly connected with a mounting plate, a clamping groove is formed in the side face of the mounting plate, a clamp is arranged on the outer side of the mounting plate, and the clamp is fixedly connected with the clamping plate. The sliding rod synchronously moves in the limiting groove and the sliding groove to drive the clamp to clamp and fix the steering ball pins, the steering ball pins with different diameters can be clamped and fixed through movement of the clamp, pressure is checked through the pressure sensor, and deformation of the steering ball pins caused by excessive clamping of the clamp is avoided.

Description

A special fixture for precision grinding of steering ball joints Technical Field

[0001] This utility model relates to the field of steering ball joint technology, specifically a special fixture for precision grinding of steering ball joints. Background Technology

[0002] The steering ball joint, also known as a ball joint or ball connector, is a key component that ensures the stability, smoothness, comfort, and safety of vehicle handling, as well as enabling the vehicle to drive correctly and accurately. The wheels of a car are connected to the axle via main ball joints, and the wheels are also connected to the steering rod using steering ball joints. One end of the steering ball joint is a solid ball, which is connected to a round rod at the bottom via a tapered neck. The outer side of the round rod is usually threaded for connection.

[0003] The surface of the solid ball in the ball head of the steering ball pin needs to be machined and ground to meet the usage requirements. Therefore, the steering ball pin needs to be clamped and fixed during the process. Existing clamps have poor clamping flexibility for steering ball pins. In addition, different clamps are required for different outer diameters of steering ball pins, which often requires workers to spend a lot of time changing them. Summary of the Invention

[0004] The purpose of this utility model is to provide a special fixture for precision grinding of steering ball joints, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special fixture for precision grinding of steering ball pins, comprising a base plate, the base plate being rotatably connected to the outer side of a cylinder, the outer side of the cylinder being fixedly connected to a driven gear, the bottom surface of the base plate being fixedly connected to a mounting frame, a rotating motor being fixedly mounted on the mounting frame, the output end of the rotating motor being fixedly connected to a driven gear, the top of the driven gear being fixedly connected to a rotating cylinder, a rotating plate being provided inside the rotating cylinder, a clamping motor being fixedly mounted inside the cylinder, a limiting groove being formed on the surface of the rotating plate, a sliding rod being provided inside the limiting groove, the top of the sliding rod being fixedly connected to a mounting plate, a slot being formed on the side of the mounting plate, a fixture being provided on the outer side of the mounting plate, the fixture being connected and fixedly connected to a clamping plate, a fixing hole being formed on the side of the clamping plate, a pressure sensor being provided inside the mounting plate, and a sliding groove being formed on the upper surface of the rotating cylinder.

[0006] Preferably, the inside of the cylinder is connected and fixed to the clamping motor via a fixing plate, and the output end of the clamping motor extends into the inside of the rotating cylinder and is fixedly connected to the rotating plate.

[0007] Preferably, the bottom of the cylinder extends below the base plate and is fixedly connected to the driven gear, and the outer side of the driven gear meshes with the moving gear.

[0008] Preferably, the limiting groove is an arc-shaped groove, and the bottom of the slide rod slides in conjunction with the limiting groove; the sliding groove is a straight groove, and the outer side of the slide rod slides in conjunction with the sliding groove.

[0009] Preferably, the clamping plate is an L-shaped plate, the outer side of the clamping plate slides in conjunction with the clamping groove, the side of the clamping groove has a threaded hole, and the clamp is connected and fixed to the mounting plate by bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention uses a clamping motor to drive a rotating plate, which in turn causes the sliding rod to move synchronously within the limiting groove and the sliding slot. This, in turn, causes the sliding rod to drive the clamp to move synchronously until the steering ball pin is clamped and fixed. The movement of the clamp can clamp and fix steering ball pins of different diameters, enhancing the actual use effect. A pressure sensor is used to check the pressure to prevent the clamp from being over-clamped and deforming the steering ball pin. The rotating motor causes the moving gear to drive the driven gear and the cylinder to rotate, thereby realizing the adjustment of the axial angle of the steering ball pin. The cooperation between the clamping plate and the clamping slot facilitates the replacement of the clamp. The clamp is connected and fixed to the mounting plate by bolts. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 is a front view of the overall structure of this utility model;

[0014] Figure 3 is a cross-sectional view of the overall structure of this utility model;

[0015] Figure 4 is a partial structural schematic diagram of this utility model;

[0016] Figure 5 is a schematic diagram of the clamp structure of this utility model.

[0017] In the diagram: 1. Base plate; 2. Cylinder; 3. Driven gear; 4. Mounting bracket; 5. Rotating motor; 6. Moving gear; 7. Rotating cylinder; 8. Rotating plate; 9. Clamping motor; 10. Limiting groove; 11. Slide rod; 12. Mounting plate; 13. Slot; 14. Fixture; 15. Clamping plate; 16. Fixing hole; 17. Pressure sensor; 18. Slide groove. Detailed Implementation

[0018] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1-5. This utility model provides a technical solution: a special fixture for precision grinding of steering ball joints, including a base plate 1, which is rotatably connected to the outer side of a cylinder 2 via a bearing sleeve. The outer side of the cylinder 2 is welded and fixed to a driven gear 3. The bottom surface of the base plate 1 is welded and fixed to a mounting frame 4, which is a U-shaped plate. The upper surface of the mounting frame 4 is connected and fixed to a rotating motor 5 via bolts. The output end of the rotating motor 5 is welded and fixed to a moving gear 6. The top of the driven gear 3 is welded and fixed to a rotating cylinder 7. A rotating plate 8 is provided inside the rotating cylinder 7. The inside of the cylinder 2 is connected and fixed to a clamping motor 9. A limiting groove 10 is provided on the surface of the rotating plate 8. A sliding rod 11 is provided inside the limiting groove 10. The top of the sliding rod 11 is welded and fixed to a mounting plate 12. A slot 13 is provided on the side of the mounting plate 12. A clamp 14 is provided on the outer side of the mounting plate 12. The clamp 14 is connected and fixed to a clamping plate 15. A fixing hole 16 is provided on the side of the clamping plate 15. A pressure sensor 17 is provided inside the mounting plate 12. A sliding groove 18 is provided on the upper surface of the rotating cylinder 7.

[0020] A through cylindrical slot is formed inside the cylinder 2. The cylinder 2 is connected and fixed to the clamping motor 9 via a fixing plate. The output end of the clamping motor 9 extends into the rotating cylinder 7 and is welded and fixed to the rotating plate 8. The fixing plate secures the clamping motor 9 inside the cylinder 2. The wires are connected to the clamping motor 9 through the bottom of the cylinder 2. Because the clamping motor 9 is located at the center of the cylinder 2, the wires of the clamping motor 9 will not become tangled when the cylinder 2 rotates, thus enhancing the practical performance.

[0021] The bottom of the cylinder 2 extends below the base plate 1 and is welded and fixed to the driven gear 3. The outer side of the driven gear 3 meshes with the moving gear 6. By rotating the motor 5, the moving gear 6 drives the driven gear 3 to rotate, which in turn causes the cylinder 2 to drive the rotating cylinder 7 and the steering ball pin to rotate. This increases the flexibility of the steering ball pin grinding, making it easier to rotate the steering ball pin for multi-directional grinding and improving grinding accuracy. At the same time, the rotation of the moving gear 6 causes the steering ball pin to rotate, thereby using centrifugal force to counteract the lateral cutting force of the grinding head, thus reducing the vibration of the steering ball pin and ensuring the quality of grinding.

[0022] The limiting groove 10 is an arc-shaped groove, and the bottom of the slide rod 11 slides in conjunction with the limiting groove 10. The slide groove 18 is a straight groove, and the outer side of the slide rod 11 slides in conjunction with the slide groove 18. A locking ring is provided on the outer side of the slide rod 11 to prevent the slide rod 11 from moving up and down inside the slide groove 18, ensuring the stability of the movement of the slide rod 11 and the mounting plate 12. Since the limiting groove 10 is an arc-shaped groove, the rotation of the rotating plate 8 pushes the limiting groove 10 to slide, thereby making the limiting groove 10 move horizontally in the slide groove 18 synchronously. This achieves synchronous movement of multiple mounting plates 12 and fixes the steering ball pin in the center. The movement of the mounting plate 12 facilitates the clamping and fixing of steering ball pins of different diameters, expanding the applicability of the clamp 14, reducing the difficulty for workers to fix the steering ball pins, and improving work efficiency.

[0023] The clamping plate 15 is an L-shaped plate, and its outer side slides into the clamping groove 13. A rectangular groove is provided on the side of the mounting plate 12 for the embedding and installation of the pressure sensor 17. The pressure sensor 17 is installed between the mounting plate 12 and the clamp 14 via adhesive, allowing the pressure sensor 17 to detect the clamping pressure of the clamp 14, thus preventing excessive clamping pressure from deforming the steering ball pin. Threaded holes are provided on the side of the clamping groove 13, and the clamp 14 is connected and fixed to the mounting plate 12 by bolts. After the mounting plate 12 and clamp 14 are connected and fixed through the threaded holes, the bolts can be removed from the fixing holes 16, and the clamp 14 can be removed from the clamping groove 13 for easy replacement.

[0024] Working principle: In use, select the corresponding clamp 14 according to the outer diameter of the steering ball pin, insert the clamping plate 15 into the clamping groove 13, and connect and fix the mounting plate 12 to the clamp 14 through bolts and fixing holes 16. Place the steering ball pin on the rotating drum 7, and drive the rotating plate 8 to rotate through the clamping motor 9, so that the bottom of the slide rod 11 can slide in the limiting groove 10, thereby allowing the slide rod 11 to move horizontally in the sliding groove 18. The mounting plate 12 drives the clamp 14 to clamp and fix the steering ball pin. The pressure sensor 17 can monitor the clamping pressure to avoid the steering ball pin from deforming due to excessive clamping pressure. The movement of the clamp 14 can fix steering ball pins of different diameters, improving the actual use effect of the clamp 14. During the grinding process, the rotating motor 5 drives the driven gear 6 to rotate the driven gear 3, which further drives the cylinder 2 to rotate the rotating drum 7 and the steering ball pin, increasing the flexibility of the steering ball pin grinding.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special fixture for precision grinding of steering ball joint heads, comprising a base plate (1), characterized in that: The base plate (1) is rotatably connected to the outside of the cylinder (2), the outside of the cylinder (2) is fixedly connected to the driven gear (3), the bottom surface of the base plate (1) is fixedly connected to the mounting frame (4), a rotating motor (5) is fixedly installed on the mounting frame (4), the output end of the rotating motor (5) is fixedly connected to the driven gear (6), the top of the driven gear (3) is fixedly connected to the rotating cylinder (7), a rotating plate (8) is provided inside the rotating cylinder (7), a clamping motor (9) is fixedly installed inside the cylinder (2), and the rotating plate (8) is on the surface of the rotating cylinder (2). A limiting groove (10) is opened on the surface of the rotating drum (7). A sliding rod (11) is provided inside the limiting groove (10). The top of the sliding rod (11) is fixedly connected to the mounting plate (12). A slot (13) is opened on the side of the mounting plate (12). A clamp (14) is provided on the outside of the mounting plate (12). The clamp (14) is connected and fixed to the clamping plate (15). A fixing hole (16) is opened on the side of the clamping plate (15). A pressure sensor (17) is provided inside the mounting plate (12). A sliding groove (18) is opened on the upper surface of the rotating drum (7).

2. The special fixture for precision grinding of steering ball joint heads according to claim 1, characterized in that: The inside of the cylinder (2) is connected and fixed to the clamping motor (9) by a fixing plate, and the output end of the clamping motor (9) extends into the inside of the rotating cylinder (7) and is fixedly connected to the rotating plate (8).

3. A special fixture for precision grinding of steering ball joint heads according to claim 1, characterized in that: The bottom of the cylinder (2) extends to the bottom plate (1) and is fixedly connected to the driven gear (3). The outer side of the driven gear (3) is meshed with the moving gear (6).

4. A special fixture for precision grinding of steering ball joint heads according to claim 1, characterized in that: The limiting groove (10) is an arc-shaped groove, and the bottom of the slide rod (11) is slidably engaged with the limiting groove (10). The sliding groove (18) is a straight groove, and the outer side of the slide rod (11) is slidably engaged with the sliding groove (18).

5. A special fixture for precision grinding of steering ball joint heads according to claim 1, characterized in that: The card plate (15) is an L-shaped plate. The outer side of the card plate (15) is slidably engaged with the card slot (13). The side of the card slot (13) has a threaded hole. The clamp (14) is connected and fixed to the mounting plate (12) by bolts.

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