A bridge pipe welding fixture

Abstract

This utility model discloses a bridge pipe welding fixture, which includes a mounting platform. Two first sliding grooves are formed inside the mounting platform. A first threaded rod is rotatably connected inside each of the two first sliding grooves. A first sliding rod is externally threaded to the first threaded rod. A fixing ring is fixedly connected to the upper surface of the first sliding rod. A cylinder is fixedly connected to the upper end of the fixing ring. A stop plate is fixedly connected to the output end of the cylinder. The upper surface of the stop plate is in close contact with the inner wall of the fixing ring. A second sliding rod is externally threaded to the end of the first threaded rod away from the first sliding rod. A second sliding groove is formed on the upper surface of the second sliding rod. A second threaded rod is rotatably connected inside the second sliding groove. Two sliders are externally threaded to the second threaded rod. Clamping blocks are fixedly connected to the sides of both sliders. The clamping device on the two sliding rods and the movement of the two sliding rods control the contact of the components to be welded.

Description

Technical Field

[0001] This utility model relates to the field of bridge pipe welding technology, and in particular to a bridge pipe welding fixture. Background Technology

[0002] In the production of automotive axle housings, the first step is to produce one half of the axle housing. Then, the two halves are fixed together, and operators perform preliminary welding to initially fix the two halves into a semi-finished axle housing. Subsequently, the semi-finished axle housing is fixed on a specialized welding fixture, and a welding robotic arm performs full welding on the axle housing.

[0003] Currently, precise positioning is difficult during welding, and other equipment needs to be replaced for subsequent welding, resulting in low welding accuracy and low welding efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a bridge pipe welding fixture to solve the problems of insufficient positioning and the need to replace equipment when welding components are welded.

[0005] To achieve the above objectives, a bridge tube welding fixture is provided, comprising: a mounting table, wherein two first sliding grooves are formed inside the mounting table, and a first threaded rod is rotatably connected inside each of the two first sliding grooves. A first sliding rod is externally threaded to the first threaded rod, and a fixing ring is fixedly connected to the upper surface of the first sliding rod. A cylinder is fixedly connected to the upper end of the fixing ring, and a stop plate is fixedly connected to the output end of the cylinder. The upper surface of the stop plate is in close contact with the inner wall of the fixing ring, which facilitates clamping and controlling the movement of the bridge tube and accurately positioning the welding position.

[0006] The first threaded rod is externally threaded to the second slide rod at the end away from the first slide rod. The second slide rod has a second slide groove on its upper surface. The second threaded rod is rotatably connected inside the second slide groove. The second threaded rod is externally threaded to two sliders. Clamping blocks are fixedly connected to the sides of both sliders to facilitate the clamping and control of the bridge tube or liner and other components, and to accurately weld them to the bridge tube.

[0007] The output end of the second motor is fixedly connected to the outside of the second threaded rod, and a fixed bracket is fixedly connected to the bottom of the second motor. The other end of the fixed bracket is fixedly connected to the side of the second slide rod, which facilitates the control of the movement of the slider.

[0008] Support legs are fixedly connected to the four corners of the lower surface of the mounting platform, and a first motor is fixedly connected to the side of one of the support legs to provide power for the use of the equipment.

[0009] The output end of the first motor is fixedly connected to a pulley, and a belt is sleeved on the outside of the pulley and the outside of the first threaded rod to control the rotation and movement of the threaded rod.

[0010] Both of the first threaded rods are bidirectional threaded rods, and belts are sleeved on the outside of the two first threaded rods to facilitate synchronous control of the two threaded rods.

[0011] The second threaded rod is a bidirectional threaded rod, and the two sliders are respectively set in the forward thread and the reverse thread, which facilitates the control of the sliders to move towards each other.

[0012] The two sliders have arc-shaped grooves on opposite sides, and the sides of the two sliders are in close contact with the inner surface of the second groove, which facilitates the clamping of the round tube.

[0013] The first slide bar and the second slide bar are respectively provided on the forward thread and the reverse thread portion of the first threaded rod. The abutment is made of hard rubber material, which controls the first slide bar and the second slide bar to move towards each other. The rubber material is deformable to prevent damage.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] 1. This utility model fixes the bridge tube with the abutment on the fixing ring, moves with the first slide rod, and fits tightly with the components of the second slide rod, which facilitates welding. After the initial welding, it moves backward to prepare for the next welding step.

[0016] 2. This utility model controls the slider clamping component through the second motor at one end of the second slide rod. The arc groove of the slider can clamp circular components, and the side clamping block can clamp other components such as lining plates. Subsequent welding can be carried out after the initial welding without the need to change to other welding platforms. Attached Figure Description

[0017] Figure 1 This is a perspective view of a bridge pipe welding fixture according to the present invention.

[0018] Figure 2 This is a top view of a bridge pipe welding fixture according to the present invention.

[0019] Figure 3 This is a side view of the second slide bar of a bridge pipe welding fixture according to this utility model.

[0020] Figure 4 This is a side view of the first slide rod of a bridge pipe welding fixture according to this utility model.

[0021] Legend:

[0022] 1. Mounting platform; 2. Support leg; 3. First motor; 4. Pulley; 5. First threaded rod; 6. Second slide groove; 7. First slide bar; 8. Support plate; 9. Cylinder; 10. First slide groove; 11. Clamping block; 12. Sliding block; 13. Second threaded rod; 14. Second slide bar; 15. Fixing frame; 16. Second motor; 17. Fixing ring. Detailed Implementation

[0023] Reference Figure 1-4 This utility model provides a bridge tube welding fixture, which includes a mounting platform 1. The mounting platform 1 has two first sliding grooves 10 inside. The two first sliding grooves 10 are rotatably connected to the first threaded rods 5. The first threaded rods 5 are externally threaded to the first sliding rods 7. The upper surface of the first sliding rods 7 is fixedly connected to the fixing ring 17. The upper end of the fixing ring 17 is fixedly connected to the cylinder 9. The output end of the cylinder 9 is fixedly connected to the abutment 8. The upper surface of the abutment 8 is in close contact with the inner wall of the fixing ring 17. When the cylinder 9 is activated, the abutment 8 is moved to clamp and release the bridge tube. The first sliding rod 7 moves to bring the components closer together.

[0024] The first threaded rod 5 is externally threaded to the second slide rod 14 at the end away from the first slide rod 7. The upper surface of the second slide rod 14 is provided with a second slide groove 6. The second threaded rod 13 is rotatably connected inside the second slide groove 6. The second threaded rod 13 is externally threaded to two sliders 12. The sides of the two sliders 12 are fixedly connected to clamping blocks 11. The sliders 12 move with the second motor 16 as the second threaded rod 13 moves, causing the two sliders 12 to open and close, clamping the parts. The second slide rod 14 moves on the first threaded rod 5 and approaches the bridge tube.

[0025] The second threaded rod 13 is externally fixedly connected to the output end of the second motor 16. The bottom of the second motor 16 is fixedly connected to the fixing frame 15. The other end of the fixing frame 15 is fixedly connected to the side of the second slide rod 14. The second motor 16 drives the second threaded rod 13 to rotate, thereby controlling the movement of the two sliders 12.

[0026] Support legs 2 are fixedly connected to the four corners of the lower surface of the mounting platform 1. One of the support legs 2 is fixedly connected to the side of the first motor 3. The support leg 2 supports the mounting platform 1, and the first motor 3 controls the rotation of the first threaded rod 5.

[0027] The output end of the first motor 3 is fixedly connected to the pulley 4. The pulley 4 is fitted with a belt on the outside of the first threaded rod 5, and the belt controls the rotation of the first threaded rod 5.

[0028] Both first threaded rods 5 are bidirectional threaded rods, and belts are sleeved on the outside of the two first threaded rods 5. The belts control the synchronous rotation of the two first threaded rods 5.

[0029] The second threaded rod 13 is a bidirectional threaded rod, and the two sliders 12 are respectively set in the forward thread and the reverse thread. The rotation of the second threaded rod 13 controls the two sliders 12 to move towards each other.

[0030] Two sliders 12 have arc-shaped grooves on opposite sides. The sides of the two sliders 12 are in close contact with the inner surface of the second groove 6. The arc-shaped grooves facilitate the clamping of round parts, and the sliders 12 are in close contact with the groove to prevent swaying.

[0031] The first slide bar 7 and the second slide bar 14 are respectively provided on the forward thread and reverse thread portion of the first threaded rod 5. The abutment 8 is made of hard rubber material. The rotation of the first threaded rod 5 causes the first slide bar 7 and the second slide bar 14 to move towards each other, so that the components on the slide bars are close together and in close contact.

[0032] Working principle: Before welding, the component to be welded is placed in the clamping device on the two slide rods. The cylinder 9 on the first slide rod 7 is activated to securely position the bridge tube. The second motor 16 is activated to rotate the second threaded rod 13, causing the two sliders 12 to move towards each other and clamp the component to be welded. Then, the first motor 3 is activated, driving the two first threaded rods 5 to rotate simultaneously, causing the first slide rod 7 and the second slide rod 14 on the first threaded rod 5 to move towards each other, bringing the two components to be welded close together for welding. After welding, the second motor 16 rotates in the opposite direction to release the two sliders 12, and the first motor 3 rotates in the opposite direction to separate the two slide rods. Then, the next component to be welded can be placed between the two sliders 12, clamped, and the two slide rods 12 are driven to move towards each other to complete the subsequent welding.

Claims

1. A bridge pipe welding fixture, characterized in that, The system includes an installation platform (1), which has two first sliding grooves (10) inside. The two first sliding grooves (10) are rotatably connected to a first threaded rod (5). The first threaded rod (5) is externally threaded to a first sliding rod (7). A fixing ring (17) is fixedly connected to the upper surface of the first sliding rod (7). A cylinder (9) is fixedly connected to the upper end of the fixing ring (17). A stop plate (8) is fixedly connected to the output end of the cylinder (9). The upper surface of the stop plate (8) is in close contact with the inner wall of the fixing ring (17). The first threaded rod (5) is externally threaded to the second slide rod (14) at the end away from the first slide rod (7). The second slide rod (14) has a second slide groove (6) on its upper surface. The second threaded rod (13) is rotatably connected inside the second slide groove (6). The second threaded rod (13) is externally threaded to two sliders (12). The two sliders (12) are fixedly connected to clamps (11) on their sides.

2. The bridge pipe welding fixture according to claim 1, characterized in that, The output end of the second motor (16) is fixedly connected to the outside of the second threaded rod (13), and the bottom of the second motor (16) is fixedly connected to the fixing frame (15). The other end of the fixing frame (15) is fixedly connected to the side of the second slide rod (14).

3. The bridge pipe welding fixture according to claim 1, characterized in that, The mounting platform (1) has four fixed support legs (2) at the four corners of its lower surface, and one of the support legs (2) has a first motor (3) fixedly connected to its side.

4. The bridge pipe welding fixture according to claim 3, characterized in that, The output end of the first motor (3) is fixedly connected to the pulley (4), and the pulley (4) is sleeved with a belt on the outside of the first threaded rod (5).

5. The bridge pipe welding fixture according to claim 1, characterized in that, Both of the first threaded rods (5) are bidirectional threaded rods, and the two first threaded rods (5) are externally sleeved with belts.

6. The bridge pipe welding fixture according to claim 1, characterized in that, The second threaded rod (13) is a bidirectional threaded rod, and the two sliders (12) are respectively set in the forward thread and the reverse thread.

7. The bridge pipe welding fixture according to claim 1, characterized in that, The two sliders (12) have arc-shaped grooves on opposite sides, and the sides of the two sliders (12) are in close contact with the inner surface of the second groove (6).

8. The bridge pipe welding fixture according to claim 1, characterized in that, The first slide bar (7) and the second slide bar (14) are respectively provided on the forward thread and reverse thread portion of the first threaded rod (5), and the abutment (8) is made of hard rubber material.

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