Pipe welding device for automobile fuel tank

Abstract

The utility model discloses a pipe welding device for automobile fuel tanks, including a rotating platform, a positioning tool, and a lifting device. The positioning tool is arranged on the rotating platform and driven by the rotating platform to rotate along a vertically arranged rotating shaft in a horizontal plane. The positioning tool has a positioning mechanism that cooperates with the pipe fitting and the end plate. The pipe fitting and the rotating shaft of the rotating platform are on the same axis. The lifting device is equipped with a welding gun and a limiting mechanism that cooperates with the pipe fitting. The limiting mechanism and the welding gun are lifted and lowered by the lifting device and are connected with the pipe fitting and the end plate on the positioning tool. When connected with the pipe fitting and the end plate on the positioning tool, the limiting mechanism contacts the pipe fitting in multiple directions so that the pipe fitting is perpendicular to the end plate, and the welding gun is aligned with the position where the pipe fitting and the end plate are connected. The utility model provides a pipe welding device for automobile fuel tanks that facilitates the precise welding of the pipe fitting and the end plate and improves the efficiency and quality of welding.

Description

Technical Field

[0001] The utility model relates to a pipe welding device for an automobile oil tank, belonging to the technical field of automobile oil tank processing equipment. Background Art

[0002] When a car fuel tank is made of metal, a cylindrical tank body is formed by rotating a metal sheet, and then an end plate is sealed and connected to the open end of the tank body. Pipe fittings for oil inlet or outlet are connected to the end plate. For the convenience of production, the pipe fittings are usually welded to the end plate first, and then the end plate with the pipe fittings is connected to the tank body. When the pipe fittings are welded to the end plate, it is necessary to manually maintain the connection position of the end plate and the pipe fittings, and it is also necessary to operate a welding gun for welding, which is inefficient and prone to inadequate welding. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a pipe welding device for an automobile fuel tank, which is convenient for accurate welding of the pipe and the end plate, improves the efficiency and quality of welding, and can solve the shortcomings of the prior art.

[0004] The technical solution of the utility model is: a pipe welding device for an automobile fuel tank, which is used for welding pipe fittings to end plates, and comprises a rotating platform, a positioning tool, and a lifting device. The positioning tool is arranged on the rotating platform and is driven by the rotating platform to rotate in a horizontal plane along a vertically arranged rotating shaft. The positioning tool has a positioning mechanism that cooperates with the pipe fitting and the end plate. The positioning mechanism contacts the pipe fitting and the end plate so that the pipe fitting and the end plate are matched and then placed at a fixed position of the positioning tool and rotates with the rotating platform. When in this fixed position, the rotating shaft of the pipe fitting and the rotating platform are on the same axis center line. A welding gun and a limiting mechanism that cooperates with the pipe fitting are installed on the lifting device. The limiting mechanism and the welding gun are lifted and lowered by the lifting device and are matched and connected with the pipe fitting and the end plate located on the positioning tool. When connected with the pipe fitting and the end plate located on the positioning tool, the limiting mechanism contacts the pipe fitting in multiple directions so that the pipe fitting is perpendicular to the end plate, and the welding gun is aligned with the position where the pipe fitting and the end plate are connected.

[0005] The limiting mechanism further comprises a sleeve that is plugged into and matched with the pipe fitting, and the sleeve is transferred to the lifting device.

[0006] Furthermore, the lifting device is equipped with an adjusting mechanism, and the welding gun is installed on the adjusting mechanism. The welding gun moves relative to the lifting device through the adjusting mechanism to achieve radial and axial adjustment relative to the pipe fitting.

[0007] Furthermore, a clamping mechanism is provided on the rotating platform, and the clamping mechanism clamps and limits the positioning tooling placed on the rotating platform.

[0008] By implementing the utility model, the positioning tool is installed on the rotating platform and rotates with the rotating platform. After the pipe fitting is inserted into the end plate, it is placed in a fixed position on the positioning tool through cooperation with the limiting mechanism of the positioning tool. At this time, the end plate is in a horizontal placement state, and the pipe fitting passes through the end plate and is on the same axis as the rotating axis of the rotating platform. The pipe fitting and the end plate rotate synchronously with the positioning tool, and the limiting mechanism and the welding gun descend through the lifting device. The limiting mechanism cooperates with the upper end of the pipe fitting to ensure that the pipe fitting is perpendicular to the end plate. The welding gun is aimed at the connection between the pipe fitting and the end plate. During the rotation of the pipe fitting and the end plate, the welding gun welds the pipe fitting to the end plate along the circumference, thereby realizing precise welding of the pipe fitting and the end plate, and improving the efficiency and quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional view of the utility model;

[0010] Figure 2 This is a schematic diagram of welding the pipe fitting to the end plate according to the utility model.

[0011] As shown in the figure: pipe fitting 1; end plate 2; rotating platform 3; positioning tool 4; lifting device 5; limit piece 6; support limit rod 7; horizontal support surface 8; limit surface 9; welding gun 10; sleeve 11; clamp 12; welding gun seat 13; stud 14; screw 15. DETAILED DESCRIPTION

[0012] Embodiments of the present utility model: Figure 1 to Figure 2As shown, a pipe welding device for an automobile fuel tank is used for welding a pipe 1 to an end plate 2, comprising a rotating platform 3, a positioning tool 4, and a lifting device 5. The positioning tool 4 is arranged on the rotating platform 3 and is driven by the rotating platform 3 to rotate in a horizontal plane along a vertically arranged rotating shaft. The positioning tool comprises a limiting member 6 and a plurality of supporting limiting rods 7. The supporting limiting rods 7 have a horizontal supporting surface 8 supporting the end plate 2 and a vertical limiting surface 9 blocking the end plate 2. After the pipe 1 passes through the end plate 2, it is placed on the positioning tool 4. The horizontal supporting surface 8 of the supporting limiting rod 7 supports the end plate 2, and the limiting surface 9 blocks the side of the end plate 2. The limiting member 6 limits the bottom of the pipe 1, so that the pipe 1 and the end plate 2 are placed at a fixed position on the positioning tool after matching. At this time, the end plate 2 is in a horizontal placement state, and the pipe 1 passes through the end plate 2 and is on the same axis as the rotating shaft of the rotating platform 3. When the rotating platform 3 rotates, The movable pipe fitting 1 and the end plate 2 rotate synchronously, and a welding gun 10 and a limiting mechanism cooperating with the upper end of the pipe fitting 1 are installed on the lifting device. The limiting mechanism includes a sleeve 11, and the lifting device drives the welding gun 10 and the sleeve 11 to rise and fall synchronously. When the welding gun 10 and the sleeve 11 are lowered to a low position, the sleeve 11 is sleeved outside the pipe fitting 1. When the pipe fitting 1 and the end plate 2 rotate, the pipe fitting 1 is in a state perpendicular to the end plate 2, and the welding gun 10 is aligned with the connection between the pipe fitting 1 and the end plate 2 to weld the pipe fitting 1 to the end plate 2 along the circumference. After welding is completed, the lifting device rises to separate the welding gun 10, the sleeve 11 from the pipe fitting 1 and the end plate 2, and the next round of welding operation is carried out to achieve precise welding of the pipe fitting 1 and the end plate 2, and improve the efficiency and quality of welding. In order to reduce the friction between the pipe fitting 1 and the sleeve 11 during rotation, the sleeve 11 is transferred to the lifting device, and the sleeve 11 is sleeved outside the pipe fitting 1 to limit the pipe fitting 1 and can rotate with the pipe fitting 1.

[0013] As a preferred embodiment, the lifting device is equipped with an adjusting mechanism, the lifting device includes a lifting column, the adjusting mechanism includes a clamp 12 and a welding gun seat 13, the welding gun 10 is installed on the welding gun seat 13, the clamp 12 is provided with a slide rail, the welding gun seat 13 is slidably connected to the slide rail, the clamp 12 is provided with a screw 15 spirally connected to the welding gun seat 13, the pipe fitting 1 located on the positioning tool 4 is coaxially distributed with the rotating axis of the lifting column and the rotating platform 3, the clamp 12 slides up and down relative to the lifting column to tighten to realize axial adjustment of the welding gun 10 relative to the pipe fitting 1, and the welding gun seat 13 is horizontally slid relative to the clamp 12 by rotating the screw 15 to realize radial adjustment of the welding gun 10 relative to the pipe fitting 1, so that it can cooperate with pipe fittings 1 of different specifications on different tooling and end plates 2 for welding.

[0014] As a preferred embodiment, a clamping mechanism is provided on the rotating platform 3, and the clamping mechanism includes several studs 14 spirally connected to the rotating platform 3. After the positioning tool 4 is placed on the rotating platform 3, the pipe fitting 1 and the end plate 2 are placed on the positioning tool, and the positioning tool is moved to adjust the position so that the sleeve 11 can be aligned with the pipe fitting 1 after it is lowered, and then the studs 14 are tightened to nail the positioning tool to the rotating platform 3, so as to facilitate the replacement of different positioning tools.

Claims

1. A pipe welding device for automobile fuel tank, used for welding pipes to end plates, characterized in that: It includes a rotating platform, a positioning tool and a lifting device. The positioning tool is arranged on the rotating platform and is driven by the rotating platform to rotate in a horizontal plane along a vertically arranged rotating shaft. The positioning tool has a positioning mechanism that cooperates with the pipe fittings and the end plate. The positioning mechanism contacts the pipe fittings and the end plate so that the pipe fittings and the end plate are matched and then placed in a fixed position of the positioning tool and rotates with the rotating platform. At this fixed position, the rotating shafts of the pipe fittings and the rotating platform are on the same axis. A welding gun and a limiting mechanism that cooperates with the pipe fittings are installed on the lifting device. The limiting mechanism and the welding gun are lifted and connected with the pipe fittings and the end plate on the positioning tool through the lifting device. When connected with the pipe fittings and the end plate on the positioning tool, the limiting mechanism contacts the pipe fittings in multiple directions so that the pipe fittings are perpendicular to the end plate, and the welding gun is aligned with the position where the pipe fittings and the end plate are connected.

2. The pipe welding device for automobile fuel tank according to claim 1 is characterized in that: The limiting mechanism comprises a sleeve which is plugged and matched with the pipe fitting, and the sleeve is transferred to the lifting device.

3. The pipe welding device for automobile fuel tank according to claim 1 or 2, characterized in that: The lifting device is equipped with an adjusting mechanism, and the welding gun is installed on the adjusting mechanism. The welding gun moves relative to the lifting device through the adjusting mechanism to achieve radial and axial adjustment relative to the pipe fitting.

4. The pipe welding device for automobile fuel tank according to claim 1 or 2, characterized in that: The rotating platform is provided with a clamping mechanism, which clamps and limits the positioning tooling placed on the rotating platform.

Images