A bridge shell rear shell cover welding tool chucking device

Abstract

The utility model discloses a kind of bridge housing rear shell cover welding tool chucking devices, belong to the technical field of automobile parts, specifically including processing table, bridge housing fixing mechanism and rear shell cover fixing mechanism are provided on the processing table;The bridge housing fixing mechanism includes installation platform, three-jaw chuck is fixedly connected on the installation platform, and the three-jaw chuck is fixedly connected on processing table;The rear shell cover fixing mechanism includes positioning disc and locating column, the positioning disc is slidably connected on processing table, multiple locating claws are circumferentially distributed on the positioning disc, and one end of the locating column is fixedly connected on the positioning disc;The utility model can realize the accurate positioning of rear shell cover and bridge housing under the cooperation of bridge housing fixing mechanism and rear shell cover fixing mechanism, effectively guarantee the coaxiality and other geometric precision of bridge housing and rear shell cover after welding, simple and convenient to operate, reduce the labor intensity of worker, and greatly improve clamping efficiency, suitable for mass production.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a welding fixture clamping device for axle housing rear cover. Background Technology

[0002] In the manufacturing process of automotive drive axles, welding the axle housing and the rear cover is one of the key steps. Before welding, the rear cover needs to be precisely and tightly pressed and fixed onto the axle housing to ensure welding quality, such as weld strength and coaxiality between the axle housing and the rear cover.

[0003] Traditional clamping methods mostly rely on simple, manual fixtures for fixation, which suffers from low clamping efficiency and poor positioning accuracy, failing to meet the demands of high-volume, high-precision production. Therefore, there is an urgent need for a clamping device for the welding fixture of the axle housing rear cover to solve these technical problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a clamping device for welding axle housing rear cover, which features reduced labor intensity, high clamping efficiency, high positioning accuracy, and suitability for mass production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture clamping device for a bridge housing rear cover, comprising a processing table, wherein a bridge housing fixing mechanism and a rear cover fixing mechanism are provided on the processing table; The bridge housing fixing mechanism includes a mounting platform, on which a three-jaw chuck is fixedly connected. The three-jaw chuck is fixedly connected to a processing table, and the three jaws on the three-jaw chuck cooperate to clamp or release the bridge housing body. The rear cover fixing mechanism includes a positioning plate and a positioning post. The positioning plate is slidably connected to the processing table. Multiple positioning claws are distributed around the circumference of the positioning plate. One end of the positioning post is fixedly connected to the positioning plate.

[0006] Preferably, it also includes a drive mechanism for moving the positioning disk closer to or away from the three-jaw chuck. The drive mechanism includes a drive table and a sliding table. The drive table is fixedly connected to the processing table. A sliding table is slidably connected above the drive table. The sliding table is connected to a cylinder provided on the drive table. A fixed table is fixedly connected above the sliding table. A fixed shaft is fixedly connected to the fixed table. The fixed shaft is fixedly connected to the positioning disk.

[0007] Preferably, the sliding platform includes a sliding plate and a clamping plate. The sliding plate is slidably connected to the top of the drive platform. The clamping plates are fixedly connected to both sides of the drive platform on the sliding plate. The two clamping plates are fixedly connected to each other by a drive plate that passes through the drive platform. The drive plate is slidably connected inside a sliding groove provided on the drive platform. The drive plate is fixedly connected to the piston end of the cylinder.

[0008] Preferably, limit strips are fixedly connected to both the upper and lower sides of the sliding groove on the drive plate, and the limit strips are adapted to the limit grooves provided on the drive plate.

[0009] Preferably, a control console is fixedly connected to the sliding plate, and a pneumatic controller is fixedly connected to the control console.

[0010] Preferably, the positioning claw has an inclined surface on the side opposite to the three-jaw chuck, and the other end of the positioning claw is fixedly connected to a mounting plate, which is fixedly connected to the positioning disk.

[0011] Preferably, the mounting plate can also be slidably connected to the positioning plate.

[0012] Preferably, it also includes an adjustment mechanism for simultaneously moving multiple positioning claws closer to or further away from the center of the positioning disk. The adjustment mechanism includes a guide block, which is fixedly connected to the mounting plate. The guide block is slidably connected inside a guide groove provided in the positioning disk. A screw is rotatably connected inside the guide groove. The screw is threadedly connected to a threaded hole provided on the guide block. One end of the screw passes through a rotating groove on the positioning disk and is fixedly connected to a nut.

[0013] Preferably, the guide block has a convex structure, and the guide groove is adapted to fit the guide block.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the cooperation of the axle housing fixing mechanism and the rear cover fixing mechanism, can achieve precise positioning of the rear cover and the axle housing, effectively ensuring the geometric accuracy such as coaxiality of the welded axle housing and the rear cover. It is simple and convenient to operate, reduces the labor intensity of workers, and greatly improves clamping efficiency, making it suitable for mass production. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of this utility model; Figure 3This is a three-dimensional structural diagram of the positioning disk in Embodiment 1 of this utility model; Figure 4 This is a three-dimensional structural diagram of the positioning disk in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the positioning disk in Embodiment 2 of this utility model; In the diagram: 1. Machining table; 2. Mounting table; 3. Three-jaw chuck; 4. Positioning plate; 5. Positioning jaw; 6. Positioning column; 7. Drive table; 8. Sliding table; 81. Slide plate; 82. Clamping plate; 83. Drive plate; 84. Sliding groove; 85. Limit bar; 86. Limit groove; 9. Cylinder; 10. Fixed table; 11. Fixed shaft; 12. Control console; 13. Pneumatic controller; 14. Mounting plate; 15. Adjustment mechanism; 151. Guide block; 152. Guide groove; 153. Screw; 154. Nut. Detailed Implementation

[0016] 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.

[0017] Example 1 Please see Figure 1-3 This embodiment provides the following technical solution: a welding fixture clamping device for a rear cover of an axle housing, including a processing table 1. A axle housing fixing mechanism is provided at the left end of the processing table 1 for clamping and fixing the axle housing body. A rear cover fixing mechanism is provided at the right end of the processing table 1 for pressing and fixing the rear cover installed on the axle housing body. With the cooperation of the axle housing fixing mechanism and the rear cover fixing mechanism, the precise positioning of the rear cover and the axle housing can be achieved, effectively ensuring the coaxiality and other geometric accuracy of the welded axle housing and the rear cover. The operation is simple and convenient, reducing the labor intensity of workers and greatly improving the clamping efficiency, making it suitable for mass production.

[0018] The axle housing fixing mechanism includes a mounting platform 2, on which a three-jaw chuck 3 is fixedly connected. The three-jaw chuck 3 is fixedly connected to the processing table 1. The three jaws on the three-jaw chuck 3 work together to clamp or release the axle housing body, placing the axle housing body onto the three-jaw chuck 3. Through the synchronous movement of the three jaws of the three-jaw chuck 3, the axle housing body is automatically centered and clamped, ensuring that the axis of the axle housing coincides with the central axis of the three-jaw chuck 3, providing a precise center reference for the subsequent positioning and welding of the rear cover.

[0019] The rear cover fixing mechanism includes a positioning disk 4 and a positioning pin 6. The positioning disk 4 is slidably connected to the processing table 1. Multiple positioning claws 5 are distributed around the circumference of the positioning disk 4. One end of the positioning pin 6 is fixedly connected to the positioning disk 4. The rear cover body is placed on the positioning disk 4, so that the positioning pin 6 is inserted into the positioning groove of the rear cover body, thus completing the initial positioning of the rear cover and ensuring the relative positional relationship between the rear cover and the positioning disk 4, providing a basis for the subsequent clamping of the positioning claws 5.

[0020] It also includes a drive mechanism for moving the positioning disk 4 closer to or further away from the three-jaw chuck 3. The drive mechanism includes a drive table 7 and a sliding table 8. The drive table 7 is fixedly connected to the processing table 1. The sliding table 8 is slidably connected above the drive table 7. The sliding table 8 is connected to a cylinder 9 provided on the drive table 7. A fixed table 10 is fixedly connected above the sliding table 8. A fixed shaft 11 is fixedly connected to the fixed table 10. The fixed shaft 11 is fixedly connected to the positioning disk 4. The cylinder 9 pushes the sliding table 8 to move, causing the fixed table 10 and the fixed shaft 11 to drive the positioning disk 4 and the positioning pin 6 to move toward the three-jaw chuck 3 until the rear cover and the bridge housing body are tightly fitted together.

[0021] The sliding platform 8 includes a slide plate 81 and a clamping plate 82. The slide plate 81 is slidably connected to the top of the drive platform 7. The clamping plates 82 are fixedly connected to the front and rear sides of the drive platform 7 on the slide plate 81. The two clamping plates 82 are fixedly connected to each other by a drive plate 83 that passes through the drive platform 7. The drive plate 83 is slidably connected to the sliding groove 84 provided on the drive platform 7. The drive plate 83 is fixedly connected to the piston end of the cylinder 9. In some embodiments, the clamping plates 82 on the front and rear sides are fitted to the front and rear sides of the drive platform 7. The sliding plate 81, clamping plates 82 and drive plate 83 improve the stability of the sliding platform 8 moving on the drive platform 7, which is conducive to the precise docking of the rear cover body and the bridge housing body.

[0022] Limiting strips 85 are fixedly connected to both the upper and lower sides of the drive plate 83 within the sliding groove 84. The limiting strips 85 are set along the length of the sliding groove 84 and are adapted to the limiting grooves 86 set on the drive plate 83. Through the cooperation of the limiting strips 85 and the limiting grooves 86, the straightness of the movement of the drive plate 83 is ensured, and the accuracy of the docking between the rear cover body and the bridge housing body is further ensured.

[0023] A control panel 12 is fixedly connected to the sliding plate, and a pneumatic controller 13 is fixedly connected to the control panel 12. The pneumatic controller 13 facilitates the control of the movement of the cylinder 9, making operation convenient.

[0024] The positioning claw 5 has an inclined surface on the side opposite to the three-jaw chuck 3. The other end of the positioning claw 5 is fixedly connected to the mounting plate 14, which is fixedly connected to the positioning plate 4. The inclined surface on the positioning claw 5 facilitates the insertion and fitting of the rear cover body.

[0025] Example 2 like Figure 4-5 As shown, in order to better adapt the positioning claws 5 to the rear cover bodies of different sizes, the mounting plate 14 can also be slidably connected to the positioning disk 4. Through the slidably connected mounting plate 14, the three positioning claws 5 can be adjusted at the same time to adapt to the rear cover bodies of different outer diameters.

[0026] It also includes an adjustment mechanism 15, which is used to make multiple positioning claws 5 simultaneously approach or move away from the center of the positioning disk 4. The adjustment mechanism 15 includes a guide block 151, which is fixedly connected to the mounting plate 14. The guide block 151 is slidably connected inside the guide groove 152 provided in the positioning disk 4. A screw 153 is rotatably connected in the guide groove 152. The screw 153 is threadedly connected to the threaded hole provided on the guide block 151. One end of the screw 153 passes through the rotating groove on the positioning disk 4 and is fixedly connected to a nut 154. Through the provided screw 153 and nut 154, the guide block 151 can slide in the guide groove 152 to adjust the clamping range of the positioning claws 5.

[0027] The guide block 151 has a convex structure, and the guide groove 152 is adapted to the guide block 151, which helps to improve the stability of the movement of the mounting plate 14 and the positioning claw 5.

[0028] The working principle of this utility model is as follows: the bridge housing body is placed on the three-jaw chuck 3, and the three jaws of the three-jaw chuck 3 move synchronously to achieve automatic centering and clamping of the bridge housing body, ensuring that the axis of the bridge housing coincides with the central axis of the three-jaw chuck 3. Place the rear cover body onto the positioning plate 4, so that the positioning pin 6 is inserted into the positioning groove of the rear cover body, thus completing the initial positioning of the rear cover and ensuring the relative positional relationship between the rear cover and the positioning plate 4. Then, the pneumatic controller 13 controls the cylinder 9 to move. The piston end of the cylinder 9 pushes the drive plate 83 to move along the sliding groove 84. The drive plate 83 drives the sliding table 8 to slide on the drive table 7. The sliding table 8 drives the positioning plate 4 and the rear cover body to approach the bridge housing body on the three-jaw chuck 3 through the fixed table 10 and the fixed shaft 11 until the rear cover and the bridge housing are tightly fitted. Welding is performed when the rear cover and axle housing are tightly fitted and precisely positioned, thus completing the welding of the rear cover and axle housing. When the positioning claw 5 needs to be adjusted, rotate each nut 154 in sequence to drive the screw 153 to rotate. Since the screw 153 is threadedly connected to the guide block 151 and the guide block 151 can only slide along the groove in the guide groove 152, the guide block 151 can drive the mounting plate 14 and the positioning claw 5 to move along the guide groove 152, thereby realizing the adjustment of the clamping range of the positioning claw 5.

[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamping device for welding a rear cover of an axle housing, characterized in that: Includes a processing table (1), on which a bridge shell fixing mechanism and a rear shell cover fixing mechanism are provided; The bridge housing fixing mechanism includes a mounting platform (2), on which a three-jaw chuck (3) is fixedly connected. The three-jaw chuck (3) is fixedly connected to the processing table (1), and the three jaws on the three-jaw chuck (3) work together to clamp or release the bridge housing body. The rear cover fixing mechanism includes a positioning disk (4) and a positioning post (6). The positioning disk (4) is slidably connected to the processing table (1). Multiple positioning claws (5) are distributed around the circumference of the positioning disk (4). One end of the positioning post (6) is fixedly connected to the positioning disk (4).

2. The clamping device for welding the rear cover of an axle housing according to claim 1, characterized in that: It also includes a drive mechanism for moving the positioning disk (4) closer to or further away from the three-jaw chuck (3). The drive mechanism includes a drive table (7) and a sliding table (8). The drive table (7) is fixedly connected to the processing table (1). The sliding table (8) is slidably connected above the drive table (7). The sliding table (8) is connected to a cylinder (9) provided on the drive table (7). A fixed table (10) is fixedly connected above the sliding table (8). A fixed shaft (11) is fixedly connected on the fixed table (10). The fixed shaft (11) is fixedly connected to the positioning disk (4).

3. The clamping device for welding the rear cover of an axle housing according to claim 2, characterized in that: The sliding platform (8) includes a sliding plate (81) and a clamping plate (82). The sliding plate (81) is slidably connected to the top of the drive platform (7). The clamping plates (82) are fixedly connected to both sides of the drive platform (7) on the sliding plate (81). The two clamping plates (82) are fixedly connected to each other by a drive plate (83) that passes through the drive platform (7). The drive plate (83) is slidably connected to the inside of a sliding groove (84) provided on the drive platform (7). The drive plate (83) is fixedly connected to the piston end of the cylinder (9).

4. The clamping device for welding the rear cover of an axle housing according to claim 3, characterized in that: Limiting strips (85) are fixedly connected to both the upper and lower sides of the drive plate (83) in the sliding groove (84), and the limiting strips (85) are adapted to the limiting grooves (86) provided on the drive plate (83).

5. The clamping device for welding the rear cover of an axle housing according to claim 1, characterized in that: A control panel (12) is fixedly connected to the sliding plate, and a pneumatic controller (13) is fixedly connected to the control panel (12).

6. The clamping device for welding the rear cover of an axle housing according to claim 1, characterized in that: The positioning claw (5) has an inclined surface on the side opposite to the three-jaw chuck (3), and the other end of the positioning claw (5) is fixedly connected to an mounting plate (14), which is fixedly connected to the positioning disk (4).

7. The clamping device for welding the rear cover of an axle housing according to claim 6, characterized in that: The mounting plate (14) can also be slidably connected to the positioning plate (4).

8. The clamping device for welding the rear cover of an axle housing according to claim 1, characterized in that: It also includes an adjustment mechanism (15) for simultaneously moving multiple positioning claws (5) closer to or further away from the center of the positioning disk (4). The adjustment mechanism (15) includes a guide block (151), which is fixedly connected to the mounting plate (14). The guide block (151) is slidably connected inside the guide groove (152) provided in the positioning disk (4). A screw (153) is rotatably connected inside the guide groove (152). The screw (153) is threadedly connected to the threaded hole provided on the guide block (151). One end of the screw (153) passes through the rotating groove on the positioning disk (4) and is fixedly connected to a nut (154).

9. The clamping device for welding the rear cover of an axle housing according to claim 8, characterized in that: The guide block (151) has a convex structure, and the guide groove (152) is adapted to the guide block (151).

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