A rear axle housing machining support tool

Abstract

The utility model belongs to rear axle housing processing technical field, concretely relates to a rear axle housing processing support frock, including bottom plate and rear axle housing body, the rear axle housing body is placed on the support seat, and the support seat is fixed on the bottom plate, and the both sides of rear axle housing body are pressed and are connected with the positioning pressure mechanism respectively. The utility model discloses the cooperation of support seat and positioning pressure mechanism can realize the effective both -sides support and pressure of rear axle housing and fix, thereby ensure its stability in the cutting process, prevent the slight displacement or vibration, help to improve the machining precision and surface quality, guarantee the production efficiency and the pass rate of product.

Description

Technical Field

[0001] This utility model belongs to the field of rear axle housing processing technology, specifically relating to a rear axle housing processing support tooling. Background Technology

[0002] Currently, the machining of rear axle housings, especially for milling and drilling operations on their irregularly curved outer surfaces, commonly faces difficulties in positioning and clamping. Due to the complex structure of the rear axle housing, with multiple curved surfaces and bosses, traditional general-purpose fixtures such as vises, V-blocks, or standard clamping plates are insufficient for stable and reliable clamping. A common approach is to use multi-point adjustable clamping devices, but these lack linkage between clamping points, resulting in uneven pressure distribution and difficulty in maintaining the clamping force direction perpendicular to the workpiece surface, leading to a small actual contact area and insufficient clamping force. During machining, especially under intermittent cutting or impact from large feed forces, the workpiece is prone to slight displacement or vibration. This loosening not only affects machining accuracy and surface quality, leading to dimensional deviations or difficulties in ensuring form and position tolerances, but can also cause tool chatter or even tool damage, severely restricting production efficiency and product qualification rates. Therefore, a rear axle housing machining support fixture is urgently needed to solve these technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a rear axle housing machining support fixture that can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows: The present invention provides a rear axle housing processing support fixture, including a base plate and a rear axle housing body. The rear axle housing body is placed on a support, and the support is fixed on the base plate. Positioning and clamping mechanisms are pressed onto both sides of the rear axle housing body. The positioning and clamping mechanism includes a pressure plate and a threaded rod. The pressure plate presses against one side of the surface of the rear axle housing body, and the threaded rod slides through a sleeve hole opened in the pressure plate. The lower side of the threaded rod is threadedly connected to a spiral cylinder fixed on the base plate. The threaded rod is threaded with a clamping nut for pressing the pressure plate.

[0005] Preferably, a fixing nut is provided on the spiral bore cylinder, and the fixing nut is threadedly engaged with the threaded rod and pressed against the surface of the spiral bore cylinder.

[0006] Preferably, the bottom surface of the pressure plate is fixed with inner insert posts on both sides, and the inner insert posts are inserted into and cooperate with the insert sleeve, which is fixed on the bottom plate.

[0007] Preferably, both ends of the rear axle housing body correspond to one of the plug-in sleeves and the spiral bore.

[0008] Preferably, the sleeve hole is located in the middle of the pressure plate.

[0009] Preferably, the base plate has two fixing holes for bolts to pass through and fix it to the processing equipment.

[0010] The beneficial effects are: This utility model, through the cooperation of the support and the positioning and clamping mechanism, can effectively support and clamp the rear axle housing on both sides, thereby ensuring its stability during the cutting process, preventing minor displacement or vibration, helping to improve machining accuracy and surface quality, and ensuring product production efficiency and pass rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the explosion distribution structure of this utility model.

[0012] The attached diagram lists the components represented by each number as follows: 1. Base plate; 1a. Fixing perforation; 2. Bracket; 3. Rear axle housing body; 4. Pressure plate; 4a. Sleeve hole; 41. Inner insert post; 5. Threaded rod; 6. Compression nut; 7. Fixing nut; 8. Insert sleeve; 9. Spiral hole cylinder. Detailed Implementation

[0013] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0014] like Figure 1-2 As shown, a rear axle housing processing support fixture includes a base plate 1 and a rear axle housing body 3. The rear axle housing body 3 is placed on a support 2, and the support 2 is fixed on the base plate 1. Positioning and clamping mechanisms are pressed onto both sides of the rear axle housing body 3. The positioning and clamping mechanism includes a pressure plate 4 and a threaded rod 5. The pressure plate 4 presses on one side of the surface of the rear axle housing body 3. The threaded rod 5 slides through the sleeve hole 4a opened on the pressure plate 4. The lower side of the threaded rod 5 is threadedly connected to the spiral hole cylinder 9 fixed on the base plate 1. The threaded rod 5 is threaded with a clamping nut 6 for clamping the pressure plate 4. The threaded rod 5 has a diameter of Φ16mm and is threaded to the clamping nut 6. The clamping nut 6 is a standard hexagonal nut with a cross-side dimension of 30mm and a thickness of 12mm to accommodate manual tool operation and provide sufficient clamping torque.

[0015] As an optional implementation, a fixing nut 7 is provided on the spiral cylinder 9. The fixing nut 7 is threadedly engaged with the threaded rod 5 and pressed against the surface of the spiral cylinder 9. The specifications of the fixing nut 7 are consistent with those of the clamping nut 6, with a side dimension of 30mm and a thickness of 12mm, so as to facilitate the convenient assembly of the threaded rod 5 and the spiral cylinder 9. In turn, the fixing nut 7 is used to achieve the fixing effect after the threaded rod 5 and the spiral cylinder 9 are connected, so as to cope with the subsequent rotation operation of the clamping nut 6.

[0016] See attached document Figure 2 Both sides of the bottom surface of the pressure plate 4 are fixed with inner insert posts 41. The inner insert posts 41 are inserted into the insert sleeve 8. The insert sleeve 8 is fixed on the bottom plate 1 so that the two sides of the pressure plate 4 can be stabilized after insertion by using the insertion of the inner insert posts 41 and the insert sleeve 8, thereby ensuring the balanced downward movement of the pressure plate 4.

[0017] Furthermore, both ends of the rear axle housing body 3 correspond to one of the plug sleeves 8 and the spiral hole cylinder 9, so that when the rear axle housing body 3 is placed, the sides of both ends of it press against the outer periphery of one of the inner plugs 41 to form a displacement barrier, thereby ensuring the machining quality during the cutting of the machining equipment.

[0018] Furthermore, the sleeve hole 4a is located in the middle of the pressure plate 4. The sleeve hole 4a is a smooth hole with an inner diameter of Φ18mm. It cooperates with the threaded rod 5 with a diameter of Φ16mm to form a 1mm fit clearance on one side. This can ensure the smooth sliding of the pressure plate 4 and effectively limit the horizontal sway of the pressure plate 4.

[0019] Furthermore, the base plate 1 has two fixing holes 1a for bolts to pass through and fix it to the processing equipment, so as to facilitate the installation and fixing of the tooling on the moving bed frame of the processing equipment, so that the rear axle housing body 3 can be stably fixed and processed.

[0020] Using the above structure, the rear axle housing body 3 is first placed in the support 2 fixed on the base plate 1, with its two ends facing the corresponding insertion sleeve 8 and spiral hole cylinder 9 respectively; then, the inner insertion post 41 at the bottom of the pressure plate 4 is inserted into the corresponding insertion sleeve 8 on the base plate 1 to achieve the initial positioning and stabilization of the pressure plate 4 on both sides; at the same time, the sleeve hole 4a on the pressure plate 4 slides through the threaded rod 5, so that the pressure plate 4 abuts against one side surface of the rear axle housing body 3; then, the clamping nut 6 is rotated to move down along the threaded rod 5 and clamp the pressure plate 4. The pressure plate 4 evenly transmits the force to the surface of the rear axle housing body 3, completing the balanced clamping and fixing of the workpiece, thereby effectively resisting the machining cutting force and preventing vibration and displacement.

[0021] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A rear axle housing machining support fixture, characterized in that: Includes a base plate (1) and a rear axle housing body (3). The rear axle housing body (3) is placed on a support (2), and the support (2) is fixed on the base plate (1). Positioning and clamping mechanisms are pressed onto both sides of the rear axle housing body (3). The positioning and clamping mechanism includes a pressure plate (4) and a threaded rod (5). The pressure plate (4) presses on one side of the surface of the rear axle housing body (3). The threaded rod (5) slides through the sleeve hole (4a) opened on the pressure plate (4). The lower side of the threaded rod (5) is threadedly connected to the spiral hole cylinder (9) fixed on the base plate (1). The threaded rod (5) is threaded with a clamping nut (6) for clamping the pressure plate (4). Both sides of the bottom surface of the pressure plate (4) are fixed with inner insert posts (41), and the inner insert posts (41) are inserted into the insert sleeve (8). The insert sleeve (8) is fixed on the bottom plate (1). Both ends of the rear axle housing body (3) correspond to one of the plug sleeves (8) and the spiral bore (9).

2. The rear axle housing machining support fixture according to claim 1, characterized in that: A fixing nut (7) is correspondingly provided on the spiral tube (9). The fixing nut (7) is threadedly engaged with the threaded rod (5) and pressed against the surface of the spiral tube (9).

3. The rear axle housing machining support fixture according to claim 2, characterized in that: The sleeve hole (4a) is located in the middle of the pressure plate (4).

4. The rear axle housing machining support fixture according to claim 3, characterized in that: The base plate (1) has two fixing holes (1a) for bolts to pass through and fix it to the processing equipment.

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