A kind of axle housing support welding positioning tool

Abstract

The utility model discloses a kind of bridge housing support welding positioning tool, it is related to automobile manufacturing technical field, including mounting frame, the middle part of mounting frame is symmetrically laid with two clamping jaws along its length direction, two The clamping jaw is driven by pneumatic chuck to move towards or away from each other, support table fixedly connected with mounting frame is equipped between two The clamping jaw;Two pneumatic cylinders are fixedly connected with symmetry in the both ends of mounting frame, the piston rod of pneumatic cylinder is fixedly connected with conical locating block;Support plate fixedly connected with mounting frame is equipped between support table and pneumatic cylinder, limit slot is set in the top of support plate. The bridge housing support welding positioning tool, its structure is simple, convenient to position, and good compatibility.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a welding and positioning fixture for an axle housing bracket. Background Technology

[0002] In the manufacturing process of automobile axles, the outer bracket is a core component. Before welding, the axle housing must be positioned using a special positioning fixture to avoid weld deviation caused by displacement of the axle housing during welding.

[0003] Existing bridge housing positioning solutions mostly adopt a combination of multiple sets of fixed fixtures for positioning. This method achieves multi-point positioning through multiple sets of fixtures, but the fixing process is relatively cumbersome. In addition, the fixture structure is fixed and can only be adapted to specific models of bridge housings. When it is necessary to process bridge housings of different specifications, the fixtures need to be changed, which increases the investment in equipment.

[0004] Therefore, it is necessary to propose a welding and positioning fixture for bridge housing supports to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved The purpose of this utility model is to provide a welding and positioning fixture for a bridge housing support, so as to solve the problems mentioned in the background art, such as the cumbersome fixing steps and poor compatibility of the existing bridge housing positioning fixtures.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a bridge housing bracket welding positioning fixture, including a mounting frame, wherein two claws are symmetrically arranged in the middle of the mounting frame along its length direction, the two claws are driven by a pneumatic chuck to move in opposite directions, and a support platform fixedly connected to the mounting frame is provided between the two claws. Two cylinders are symmetrically fixedly connected to both ends of the mounting bracket, and a conical positioning block is fixedly connected to the piston rod of the cylinder; A support plate, which is fixedly connected to the mounting bracket, is provided between the support platform and the cylinder, and a limit groove is provided at the top of the support plate.

[0007] Preferably, the two claws are provided with arc surfaces on the sides that are far apart from each other, and the curvature of the arc surfaces is adapted to the curvature of the mounting hole in the middle of the bridge housing.

[0008] Preferably, each of the two claws has a support edge that is flush with the support platform surface on the side that is far apart from each other.

[0009] Preferably, the conical positioning block has multiple expansion and contraction slots evenly distributed along its circumference.

[0010] Preferably, an air circuit controller is fixedly connected to one side of the mounting bracket, and both the cylinder and the pneumatic chuck are connected to the air circuit controller via air pipes.

[0011] Preferably, it also includes a support, on which a rotating frame is rotatably connected, and the mounting frame is fixedly connected to one side of the rotating frame.

[0012] Preferably, both ends of the rotating frame are fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the support through a bearing seat, and one of the rotating shafts is driven to rotate by a motor.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a welding positioning fixture for bridge housing support, which has the following advantages: 1. This axle housing bracket welding and positioning fixture uses a pneumatic chuck to drive the jaws to position the middle of the axle housing, and a cylinder to drive the conical positioning blocks to position the two ends of the axle housing, thus enabling rapid positioning of the axle housing. It has a simple structure and is easy to position; at the same time, it is compatible with axle housings of various models.

[0014] 2. The welding and positioning fixture for the axle housing support increases the contact area with the axle housing by setting an arc surface on the jaws and opening expansion joints on the conical positioning blocks to avoid direct rigid contact. Under their combined action, local pressure is reduced and damage to the axle housing is avoided. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the usage state of this utility model; Figure 3 This is a three-dimensional schematic diagram of the support platform of this utility model.

[0016] In the diagram: 1. Pneumatic controller; 2. Rotating frame; 3. Support; 4. Cylinder; 5. Conical positioning block; 6. Support platform; 7. Mounting bracket; 8. Support plate; 9. Limiting groove; 10. Bridge housing; 11. Pneumatic chuck; 12. Claw; 13. Arc surface; 14. Support edge; 15. Motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figure 1-3As shown, a welding positioning fixture for a bridge housing bracket includes a mounting frame 7. Two jaws 12 are symmetrically arranged along the length of the mounting frame 7 in its middle section. The two jaws 12 are driven by a pneumatic chuck 11 to move towards or away from each other. A support platform 6, fixedly connected to the mounting frame 7, is provided between the two jaws 12. Two cylinders 4 are symmetrically fixedly connected to both ends of the mounting frame 7. A conical positioning block 5 is fixedly connected to the piston rod of each cylinder 4. A support plate 8, fixedly connected to the mounting frame 7, is provided between the support platform 6 and the cylinders 4. A limit groove 9 is formed at the top of the support plate 8. Specifically, an air circuit controller 1 is fixedly connected to one side of the mounting frame 7. Both the cylinders 4 and the pneumatic chuck 11 are connected to the air circuit controller 1 via air pipes.

[0019] When positioning the axle housing 10, the middle part of the axle housing 10 is placed on the support platform 6 for support, and the two jaws 12 are inserted into the reducer mounting holes in the middle of the axle housing 10. The two ends of the axle housing 10 are supported by the support plate 8 to keep it balanced. Under the action of the limiting groove 9, the axle housing 10 is pre-positioned axially. The pneumatic chuck 11 is activated, which drives the two jaws 12 to move away from each other. The two jaws 12 act on the mounting holes in the middle of the axle housing 10 to perform horizontal positioning of the axle housing 10. Then, the cylinder 4 is activated, which drives the conical positioning blocks 5 to be inserted into the mounting holes located at both ends of the axle housing 10. Under the action of the two symmetrically arranged conical positioning blocks 5, the axle housing 10 is axially positioned. It uses a pneumatic chuck 11 to position the middle part of the axle housing 10, and uses a cylinder 4 in conjunction with a conical positioning block 5 to position the end of the axle housing 10. Based on the stroke coverage of the pneumatic chuck 11 and the cylinder 4, it can be compatible with a variety of axle housing models.

[0020] To prevent damage to the positioning area due to stress, each of the two jaws 12 has an arc surface 13 on its opposite side. The curvature of the arc surface 13 matches the curvature of the mounting hole in the middle of the bridge housing 10. By providing the arc surface 13 on the jaws 12, the contact area with the bridge housing 10 is increased, thereby reducing local pressure and preventing damage to the bridge housing 10. When positioning different models of bridge housing 10, the arc surface 13 is used according to the middle of the bridge housing 10. By uniformly opening multiple expansion and contraction slots along the circumference of the conical positioning block 5, a certain buffer is provided between the bridge shell 10 and the conical positioning block 5, avoiding direct rigid contact, thereby reducing local pressure and protecting both ends of the bridge shell 10 from damage.

[0021] To improve the support effect on the middle of the axle housing 10, each of the two jaws 12 is provided with a support edge 14 that is flush with the surface of the support platform 6 on the side away from each other. When positioning the axle housing 10, the axle housing 10 is supported by the support platform 6 and the support edge 14 at the same time. Then, the pneumatic chuck 11 is activated to drive the two jaws 12 away from each other, thereby positioning the middle of the axle housing 10.

[0022] In some embodiments, the system further includes a support 3, on which a rotating frame 2 is rotatably connected, and a mounting frame 7 is fixedly connected to one side of the rotating frame 2. Specifically, both ends of the rotating frame 2 are fixedly connected to rotating shafts, which are rotatably connected to the support 3 via bearing seats, and one of the rotating shafts is driven to rotate by a motor 15. Preferably, the motor 15 is a brake motor.

[0023] When the tilt angle of the bridge housing 10 needs to be adjusted according to requirements, the motor 15 is started. The motor 15 drives the rotating shaft to rotate through the gear. The rotating shaft drives the bridge housing 10 to rotate through the mounting bracket 7, thereby adjusting the tilt angle of the bridge housing 10 and providing convenience for welding operations of the bridge housing 10 in different directions.

[0024] 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 welding and positioning fixture for a bridge housing support, comprising a mounting bracket (7), characterized in that: The mounting bracket (7) has two claws (12) symmetrically arranged along its length in the middle. The two claws (12) are driven by a pneumatic chuck (11) to move towards each other or away from each other. A support platform (6) is provided between the two claws (12) and is fixedly connected to the mounting bracket (7). Two cylinders (4) are symmetrically fixedly connected to both ends of the mounting bracket (7), and a conical positioning block (5) is fixedly connected to the piston rod of the cylinder (4). A support plate (8) is provided between the support platform (6) and the cylinder (4) and is fixedly connected to the mounting bracket (7). A limit groove (9) is provided at the top of the support plate (8).

2. The bridge housing support welding positioning fixture according to claim 1, characterized in that: Both of the two claws (12) are provided with arc surfaces (13) on the side that are far apart from each other, and the curvature of the arc surfaces (13) is adapted to the curvature of the mounting hole in the middle of the bridge housing (10).

3. The bridge housing support welding positioning fixture according to claim 1, characterized in that: Each of the two claws (12) is provided with a support edge (14) that is flush with the surface of the support platform (6) on the side that is far apart from each other.

4. The bridge housing support welding positioning fixture according to claim 1, characterized in that: Multiple expansion and contraction joints are evenly provided on the conical positioning block (5) along its circumference.

5. The bridge housing support welding positioning fixture according to claim 1, characterized in that: A pneumatic controller (1) is fixedly connected to one side of the mounting bracket (7), and the cylinder (4) and the pneumatic chuck (11) are both connected to the pneumatic controller (1) through air pipes.

6. The bridge housing support welding positioning fixture according to claim 1, characterized in that: It also includes a support (3), on which a rotating frame (2) is rotatably connected, and the mounting frame (7) is fixedly connected to one side of the rotating frame (2).

7. The bridge housing support welding positioning fixture according to claim 6, characterized in that: Both ends of the rotating frame (2) are fixedly connected to rotating shafts, which are rotatably connected to the support (3) through bearing seats, and one of the rotating shafts is driven to rotate by a motor (15).

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