An auxiliary support device for cutting groove of automobile rear axle semi-floating half shaft

Abstract

The utility model discloses a kind of auxiliary support devices for cutting groove of automobile rear axle semi-floating half shaft, install on lathe, including support frame and support disc;The support frame is equipped with support ring, the side of the support ring is fixed with inner tube, the inner surface of the inner tube is opposite with the torus of support ring and is set, the support disc is annular and the side of the support ring is fixed with outer tube, the outer tube is located the outside of inner tube and outer tube is connected with inner tube by bearing, the support disc is equipped with the clamping structure for clamping semi-floating half shaft. The auxiliary support device for cutting groove of automobile rear axle semi-floating half shaft has the advantages of reducing repeated clamping frequency, reducing logistics turnover and reducing production cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts machining technology, and in particular to an auxiliary support device for grooving a semi-floating half-shaft of an automotive rear axle. Background Technology

[0002] In automotive drive axle systems, the semi-floating half-shaft is a widely used key component. Its structural features include an outer disc stop, an inner disc, bearing mounting positions, and retaining ring grooves. Due to the relatively long shaft of this part, maintaining high coaxiality, perpendicularity, and dimensional accuracy is required when grooving the retaining ring groove. Traditional lathe machining cannot complete all finishing operations in a single setup. Existing conventional finishing processes typically involve two main steps: First, the workpiece is positioned and rotated using a small-end spline to finish-machine the disc and outer stop. After this step, the operator must unload the workpiece and move it to another process, where the retaining ring groove is positioned using the already finished disc end face before semi-finishing machining of the retaining ring groove can begin. This process presents the following problems:

[0003] 1. The processing steps are dispersed, requiring multiple clamping and turnover, which increases the complexity of the production process and introduces the potential for cumulative errors from multiple clamping, posing a risk to the consistency of product processing accuracy; 2. During the production process, workpieces need to be manually handled and loaded and unloaded multiple times, resulting in high labor intensity and low production efficiency; 3. The dispersed processes lead to a large number of equipment required, large production line space requirements, and low overall layout efficiency, which increases production management costs and the processing cost per unit. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide an auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle that can reduce the number of repeated clamping, reduce logistics turnover, and reduce production and manufacturing costs.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle is installed on a lathe and includes a support frame and a support plate. The support frame is provided with a support ring, and an inner cylinder is fixed to one side of the support ring. The inner surface of the inner cylinder is directly opposite to the ring surface of the support ring. The support plate is annular and an outer cylinder is fixed to one side of the support ring. The outer cylinder is located outside the inner cylinder and is connected to the inner cylinder by a bearing. The support plate is provided with a clamping structure for clamping the semi-floating half-shaft.

[0007] In this way, by setting up a support frame and a support plate, with the support frame equipped with a support ring and an inner cylinder, and the support plate connected to the inner cylinder via an outer cylinder and a bearing, and by setting up a clamping structure for holding the semi-floating half-shaft, auxiliary support for the semi-floating half-shaft is formed. When grooving the retaining groove of the semi-floating half-shaft, the rotational stability of the semi-floating half-shaft can be ensured, machining errors caused by insufficient support can be reduced, and the coaxiality, perpendicularity, and dimensional accuracy of the grooving process can be improved. At the same time, the integrated auxiliary support device avoids multiple clamping and turnovers, simplifying the production process.

[0008] Preferably, the clamping structure includes three evenly distributed clamping units. Each clamping unit includes a threaded seat fixedly mounted on a support plate. The threaded seat has a threaded hole along the radial direction of the support plate. A screw is threaded into the threaded hole. An end is fixed to the inner end of the screw. The end is connected to a connector via a bearing. A clamping block is fixedly connected to the connector.

[0009] Preferably, the clamping surface of the clamping block is arc-shaped.

[0010] Preferably, a handle is fixedly installed at the outer end of the screw.

[0011] Preferably, the support frame is inverted U-shaped.

[0012] Preferably, a slider is fixedly installed at the lower end of the support frame, two guide rails are fixedly installed on the lathe, the slider slides with the guide rails, and a guide rail clamp that cooperates with the guide rails is fixedly connected to the slider.

[0013] In summary, the auxiliary support device for grooving the semi-floating half-shaft of the automotive rear axle has the advantages of reducing the number of repeated clamping operations, reducing logistics turnover, and lowering production and manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the auxiliary support device for grooving a semi-floating half-shaft of a car rear axle, as described in this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the middle support frame and support plate.

[0016] Figure 3 for Figure 2 Diagram of the split structure.

[0017] Figure 4 This is a schematic diagram of the support plate structure. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] like Figure 1-4 As shown, an auxiliary support device for grooving a semi-floating half-shaft 100 of a car rear axle is installed on a lathe 1 and includes a support frame 2 and a support plate 3. The support frame is provided with a support ring 4, and an inner cylinder 5 is fixed to one side of the support ring. The inner surface of the inner cylinder is directly opposite to the ring surface of the support ring. The support plate is annular and an outer cylinder 6 is fixed to one side of the support ring. The outer cylinder is located outside the inner cylinder and the outer cylinder and the inner cylinder are connected by a bearing 7. The support plate is provided with a clamping structure for clamping the semi-floating half-shaft.

[0020] In this way, by setting up a support frame and a support plate, with the support frame equipped with a support ring and an inner cylinder, and the support plate connected to the inner cylinder via an outer cylinder and a bearing, and by setting up a clamping structure for holding the semi-floating half-shaft, auxiliary support for the semi-floating half-shaft is formed. When grooving the retaining groove of the semi-floating half-shaft, the rotational stability of the semi-floating half-shaft can be ensured, machining errors caused by insufficient support can be reduced, and the coaxiality, perpendicularity, and dimensional accuracy of the grooving process can be improved. At the same time, the integrated auxiliary support device avoids multiple clamping and turnovers, simplifying the production process.

[0021] Specifically, the lathe is an existing mature piece of equipment. One end is equipped with a chuck seat, on which a three-jaw chuck 110 is installed. The other end is equipped with a tailstock 120. The tailstock can slide on the guide rail 15 via a tailstock slider 130 located below. Two guide rails 15 are fixed on the lathe. A center seat 140 is installed on the tailstock, and a center 150 is installed on the center seat. The tailstock is also equipped with a tailstock clamp 160 that cooperates with the guide rails and can lock the tailstock onto the guide rails.

[0022] In actual operation, after the small spline end of the semi-floating half-shaft passes through the auxiliary support device, the small spline end of the semi-floating half-shaft is clamped by a three-jaw chuck. The position of the tailstock is adjusted so that the center point cooperates with the disc part of the semi-floating half-shaft. Then, the clamping structure is adjusted so that the clamping structure clamps the semi-floating half-shaft. As the lathe drives the semi-floating half-shaft to rotate, the support disc rotates synchronously, reducing the vibration during the machining of the semi-floating half-shaft and improving the grooving accuracy.

[0023] In implementation, the clamping structure includes three evenly distributed clamping units. Each clamping unit includes a threaded seat 8 fixedly mounted on a support plate. The threaded seat has a threaded hole along the radial direction of the support plate. A screw 9 is threaded into the threaded hole. An end cap 10 is fixed to the inner end of the screw. The end cap is connected to a connector 11 via a bearing. A clamping block 12 is fixedly connected to the connector. By employing three evenly distributed clamping units, each unit, through the cooperation of the threaded seat, screw, end cap, connector, and clamping block, can flexibly clamp semi-floating half-shafts of different sizes, expanding its applicability. Specifically, during adjustment, rotating the screw, in cooperation with the threaded hole, moves the clamping block. In actual operation, the operator can adjust the position of the clamping block by rotating the screw according to the actual size of the half-shaft. One hand can rotate the screw while the other hand holds the clamping block until it contacts and presses against the semi-floating half-shaft, completing the clamping. This design can adapt to the processing needs of various half-shaft specifications, greatly improving the versatility of the auxiliary support device.

[0024] In practice, the clamping surface of the clamping block is arc-shaped. This allows for better contact with the surface of the semi-floating half-shaft, increasing the contact area and resulting in a more uniform distribution of clamping force.

[0025] During implementation, a handle 13 is fixedly installed at the outer end of the screw. This allows the operator to manually rotate the screw to adjust the position of the clamping block.

[0026] In practice, the support frame is inverted U-shaped. This provides a stable support foundation for the support plate and half-shaft, improving processing stability.

[0027] In practice, a slider 14 is fixedly installed at the lower end of the support frame, and two guide rails 15 are fixedly installed on the lathe. The slider slides in cooperation with the guide rails, and a guide rail clamp 16 that cooperates with the guide rails is fixedly connected to the slider. This arrangement allows the position of the support frame to be adjusted, improving flexibility to adapt to the machining of semi-floating half-shafts of different lengths. After adjustment, the guide rail clamp is used to fix the frame, ensuring the stability of the device during machining.

[0028] In summary, this auxiliary support device can improve the stability of the processing, solve the problem of needing multiple clamping and turnover, reduce cumulative errors, improve product processing accuracy, reduce the number of manual handling and loading / unloading operations, reduce labor intensity, improve production efficiency, reduce the number of equipment occupied, and reduce the demand for production line space, thereby comprehensively improving the quality and efficiency of grooving processing of semi-floating half-shafts for automobile rear axles.

[0029] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle, mounted on a lathe, characterized in that, Includes support frame and support plate; The support frame is provided with a support ring, and an inner cylinder is fixed to one side of the support ring. The inner surface of the inner cylinder is directly opposite to the ring surface of the support ring. The support plate is annular and an outer cylinder is fixed to one side of the support ring. The outer cylinder is located outside the inner cylinder and the outer cylinder is connected to the inner cylinder through a bearing. The support plate is provided with a clamping structure for clamping the semi-floating half shaft.

2. The auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle according to claim 1, characterized in that, The clamping structure includes three evenly distributed clamping units. Each clamping unit includes a threaded seat fixedly mounted on a support plate. The threaded seat has a threaded hole along the radial direction of the support plate. A screw is threaded into the threaded hole. An end is fixed to the inner end of the screw. The end is connected to a connector via a bearing. A clamping block is fixedly connected to the connector.

3. The auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle according to claim 2, characterized in that, The clamping surface of the clamping block is arc-shaped.

4. The auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle according to claim 3, characterized in that, A handle is fixedly installed at the outer end of the screw.

5. The auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle according to claim 1, characterized in that, The support frame is inverted U-shaped.

6. The auxiliary support device for grooving a semi-floating half-shaft of an automobile rear axle according to claim 1, characterized in that, A slider is fixedly installed at the lower end of the support frame, and two guide rails are fixedly installed on the lathe. The slider slides in cooperation with the guide rails, and a guide rail clamp that cooperates with the guide rails is fixedly connected to the slider.

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