Automobile half shaft end face tooth meshing tightening device

Abstract

The utility model discloses an automobile half shaft end face tooth meshing tightening device which is characterized by comprising an installation support, a tightening gun and a rotary servo motor, the tightening gun and the rotary servo motor are both arranged on the installation support, the front end of the tightening gun is connected with a compression sleeve assembly, a gear rotating shaft is arranged on the installation support in a rotating mode, and the gear rotating shaft is connected with the compression sleeve assembly. A first gear is arranged on the gear rotating shaft, a second gear meshed with the first gear is arranged on an output shaft of the rotating servo motor, a reverse transmission device is arranged on the first gear and arranged on the outer side of the compression sleeve assembly in a sleeving mode, and a shifting groove for shifting the brake disc is formed in the outer side of the overturning transmission device. And the rotating direction of the second gear is opposite to that of the tightening gun. The device has the advantages that the structure is simple, operation is convenient, the center of the brake disc can be automatically positioned, meanwhile, the brake disc can be squeezed to be meshed with teeth on the end face of a half shaft, the tightening gun tightens a center bolt, and the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of assembly devices, specifically to a gear meshing and tightening device for the end face of an automobile half-shaft. Background Technology

[0002] A new end-face gear engagement and tightening integrated assist arm has been added to the automotive assembly line and applied to the 27L / R front suspension and 25L / R rear suspension stations in the final assembly workshop. This station is used for the end-face gear engagement of the brake disc and half-shaft, and the tightening of the half-shaft bolts. A total of one bolt is tightened per station, with a torque range of 100-400 N·m.

[0003] The assembly process requires the use of a reaction arm within the workstation to assemble the end face teeth and tighten one bolt. The tooling is then aligned, the half-shaft is clamped, the bolt is loosened, the brake disc is rotated, the bolt is tightened, and the tooling is removed. Existing tightening devices require separate positioning of the brake disc to engage with the upper end face teeth of the half-shaft before tightening the bolt with a tightening gun. This method is costly, cumbersome, and labor-intensive for workers. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides a gear meshing tightening device for the end face of an automobile half-shaft, which has a simple structure, is easy to operate, and reduces the labor intensity of workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A gear meshing tightening device for the end face of an automotive half-shaft, characterized in that it includes a mounting bracket, a tightening gun, and a rotary servo motor, wherein both the tightening gun and the rotary servo motor are mounted on the mounting bracket, a compression sleeve assembly is connected to the front end of the tightening gun, a gear shaft is rotatably mounted on the mounting bracket, a first gear is mounted on the gear shaft, a second gear meshing with the first gear is mounted on the output shaft of the rotary servo motor, a reversing transmission device is mounted on the first gear, the reversing transmission device is sleeved on the outside of the compression sleeve assembly, the outside of the reversing transmission device has a groove for actuating a brake disc, and the rotation direction of the second gear is opposite to the rotation direction of the tightening gun.

[0007] Furthermore, the compression sleeve assembly includes a connecting cylinder, a movable rod, a sleeve, and a spring. One end of the connecting cylinder is connected to the head of the tightening gun. The spring is disposed inside the connecting cylinder. One end of the movable rod extends into the connecting cylinder and abuts against the spring. The other end of the movable rod is connected to the sleeve.

[0008] Furthermore, a positioning sleeve is fitted onto the sleeve, and the front end of the positioning sleeve has a conical surface.

[0009] Furthermore, the reversing transmission device is a nylon block.

[0010] Furthermore, a movable hanging plate is provided above the top of the mounting bracket, a connecting bolt is provided at the lower end of the movable hanging plate, and a floating joint that mates with the connecting bolt is provided on the mounting bracket.

[0011] Furthermore, the top surface of the mounting bracket is provided with two opposing rotating limiting plates, the inner side of the rotating limiting plates is provided with rotating limiting bolts, the top of the rotating limiting plates is provided with tilting limiting bolts, and the bottom of the movable hanging plate is provided with a vertical limiting plate.

[0012] The advantages of this utility model include: simple structure, convenient operation, automatic positioning of the brake disc center, and the ability to squeeze the brake to engage with the teeth on the end face of the half shaft, while the tightening gun tightens the center bolt, thus improving assembly efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0016] One such Figure 1-2 The illustrated automotive half-shaft end face gear meshing tightening device includes a mounting bracket 1, a tightening gun 2, and a rotary servo motor 3. Both the tightening gun 2 and the rotary servo motor 3 are mounted on the mounting bracket 1, with the rotary servo motor 3 positioned above the tightening gun 2. A compression sleeve assembly 4 is connected to the front end of the tightening gun 2 for tightening bolts. A gear shaft 5 is rotatably mounted on the mounting bracket 1 via bearings, and a first gear 6 is mounted on the gear shaft 5. A second gear 7, meshing with the first gear 6, is mounted on the output shaft of the rotary servo motor 3, thereby driving the first gear 7 to rotate. A reversing transmission device 8, which is a nylon block, is mounted on the first gear 6. The reversing transmission device 8 is sleeved on the outside of the compression sleeve assembly 4, and its outer side has a groove 81 for actuating the brake disc. The rotation direction of the second gear 7 is opposite to the rotation direction of the tightening gun 2.

[0017] like Figure 2As shown, the compression sleeve assembly 4 includes a connecting cylinder 41, a movable rod 42, a sleeve 43, and a spring 44. One end of the connecting cylinder 41 is connected to the head of the tightening gun 2. The spring 44 is disposed inside the connecting cylinder 41. One end of the movable rod 42 extends into the connecting cylinder 41 and abuts against the spring 44, while the other end of the movable rod 42 is connected to the sleeve 43. A positioning sleeve 45 is fitted onto the sleeve 43, and the front end of the positioning sleeve 45 has a conical surface. The front end face of the sleeve 43 has a groove for accommodating bolts. This structure allows the sleeve 43 to rotate synchronously with the output shaft of the tightening gun 2 and to be axially compressed.

[0018] This embodiment is used in conjunction with a half-shaft positioning fixture. The specific operating steps are as follows:

[0019] 1. The operator assesses and clamps the space around the half-shaft;

[0020] 2. The servo electric cylinder is moved forward to perform center positioning and engagement between the customized sleeve and the brake disc;

[0021] 3. Continue horizontal displacement to allow the sleeve to be compressed and the alignment reaction force rotation module to engage with the brake disc, ensuring that the set pressure is continuously applied to the end face of the brake disc.

[0022] 4. The pneumatic servo motor drives the brake disc to rotate until the set torque is reached. The qualified indicator light will light up, indicating that the end face teeth are successfully engaged.

[0023] 5. Start the tightening gun to tighten the center bolt. The work is complete when the qualified light comes on.

[0024] 6. The button controls the servo cylinder to remove the tooling from the working area, release the half-shaft clamping device, move the entire set of equipment to a safe position, and the operation is completed.

[0025] In this embodiment, to facilitate precise positioning of the half-shaft and brake disc and ensure the tightening device is adjustable during installation, a movable hanging plate 9 is provided above the top of the mounting bracket 1. This movable hanging plate 9 is used to connect the servo cylinder, enabling it to move horizontally. A connecting bolt 10 is provided at the lower end of the movable hanging plate 9, and a floating joint 11 that mates with the connecting bolt 10 is provided on the mounting bracket 1. Two opposing rotating limiting plates 12 are provided on the top surface of the mounting bracket 1. A rotating limiting bolt 13 is provided on the inner side of the rotating limiting plate 12, and an inclined limiting bolt 14 is provided on the top of the rotating limiting plate 12. A vertical limiting plate 15 is provided below the movable hanging plate 9.

[0026] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A toothed engagement tightening device for the end face of an automobile half-shaft, characterized in that: The device includes a mounting bracket (1), a tightening gun (2), and a rotary servo motor (3). The tightening gun (2) and the rotary servo motor (3) are both mounted on the mounting bracket (1). The front end of the tightening gun (2) is connected to a compression sleeve assembly (4). A gear shaft (5) is rotatably mounted on the mounting bracket (1). A first gear (6) is mounted on the gear shaft (5). A second gear (7) that meshes with the first gear (6) is mounted on the output shaft of the rotary servo motor (3). A reverse transmission device (8) is mounted on the first gear (6). The reverse transmission device (8) is sleeved on the outside of the compression sleeve assembly (4). The outside of the reverse transmission device (8) has a groove (81) for actuating the brake disc. The rotation direction of the second gear (7) is opposite to the rotation direction of the tightening gun (2).

2. The automotive half-shaft end face gear meshing tightening device according to claim 1, characterized in that: The compression sleeve assembly (4) includes a connecting sleeve (41), a movable rod (42), a sleeve (43), and a spring (44). One end of the connecting sleeve (41) is connected to the head of the tightening gun (2). The spring (44) is disposed inside the connecting sleeve (41). One end of the movable rod (42) extends into the connecting sleeve (41) and abuts against the spring (44). The other end of the movable rod (42) is connected to the sleeve (43).

3. The automotive half-shaft end face gear meshing tightening device according to claim 2, characterized in that: A positioning sleeve (45) is fitted onto the sleeve (43), and the front end of the positioning sleeve (45) has a conical surface.

4. The automotive half-shaft end face gear meshing tightening device according to claim 1, characterized in that: The reversing transmission device (8) is a nylon block.

5. The automotive half-shaft end face gear meshing tightening device according to claim 1, characterized in that: A movable hanging plate (9) is provided above the top of the mounting bracket (1), and a connecting bolt (10) is provided at the lower end of the movable hanging plate (9). A floating joint (11) that cooperates with the connecting bolt (10) is provided on the mounting bracket (1).

6. The automotive half-shaft end face gear meshing tightening device according to claim 5, characterized in that: The top surface of the mounting bracket (1) is provided with two oppositely arranged rotating limiting plates (12), the inner side of the rotating limiting plate (12) is provided with a rotating limiting bolt (13), the top of the rotating limiting plate (12) is provided with an inclined limiting bolt (14), and the bottom of the movable hanging plate (9) is provided with a vertical limiting plate (15).

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