Automotive pipe fitting welding tool

Abstract

The utility model relates to a vehicle pipe fitting welding tool which comprises a rack, a lifting assembly, a pressing assembly, a bottom bracket, side jacking air cylinders and a cooling assembly, the lifting assembly is installed on the rack, the output end of the lifting assembly is connected with the bottom bracket and drives the bottom bracket to move up and down, and the two side jacking air cylinders are installed on the bottom bracket side by side in a spaced mode. The pressing assembly comprises a mounting frame, a first air cylinder and an overturning clamp, the mounting frame is fixed to the table top of the rack, the first air cylinder is connected with the mounting frame, the output end of the first air cylinder is arranged upwards, the lower end of the overturning clamp is connected with the output end of the first air cylinder, and the middle of the overturning frame is movably connected with the mounting frame through a pin shaft; the second cylinder is connected with the rack through a vertical frame; the output end of the second cylinder is connected with the cooling cylinder. The lifting assembly is used for driving the bottom bracket for bearing the pipe fittings to ascend and descend to adapt to the pipe fittings with different diameters and models, and the cooling assembly is integrated and used for cooling the pipe fittings in the welding process to prevent heat concentration.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding tooling for vehicle pipes. Background Art

[0002] When welding a workpiece on the outside of a pipe or butt-welding pipes, it is usually necessary to use a fixture to position the pipe. The existing fixtures usually clamp and fix the pipe on the outside of the pipe. The tooling for fixing the pipe is manufactured according to the pipe size in a one-to-one adaptation manner, and cannot be used in multiple types. The tooling cost is relatively high. Secondly, during the welding process of vehicle pipes, due to the relatively thin wall thickness of some pipes, the temperature at the weld bead is relatively high, resulting in heat concentration, and the heat is difficult to dissipate quickly, which may cause situations such as missed welding and burn-through at the weld bead, resulting in the scrapping of workpieces and a reduction in the yield rate. Therefore, improvement is needed. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a welding tooling for vehicle pipes in view of the above problems.

[0004] A welding tooling for vehicle pipes includes a frame, a lifting assembly, a pressing assembly, a bottom bracket, side jacking cylinders and a cooling assembly. The lifting assembly is installed on the frame, and the output end of the lifting assembly is connected to the bottom bracket to drive the bottom bracket to move up and down. The two side jacking cylinders are arranged side by side and spaced apart on the bottom bracket. The pressing assembly includes a mounting frame, a first cylinder and a flipping clamp. The mounting frame is fixed on the tabletop of the frame. The first cylinder is connected to the mounting frame, and its output end is upward. The lower end of the flipping clamp is connected to the output end of the first cylinder. The middle part of the flipping frame is movably connected to the mounting frame through a pin shaft. The cooling assembly includes a second cylinder, a vertical frame and a cooling cylinder. The second cylinder is connected to the frame through the vertical frame, and the output end of the second cylinder is connected to the cooling cylinder.

[0005] Preferably, the lifting assembly includes a lifting cylinder, a guiding groove and a sliding plate. The lifting cylinder is installed below the frame, and its output end penetrates through the tabletop of the frame and is connected to the sliding plate. The two ends of the sliding plate are connected to the lower end of the bottom bracket. The lower end of the bottom bracket is provided with a vertically oriented guide rail, and the guide rail is movably clamped with the guiding groove.

[0006] Preferably, the upper end of the bottom bracket is further provided with a vertically oriented positioning pin.

[0007] Preferably, the output end of the side jacking cylinder is provided with a rubber head.

[0008] The beneficial effects of the utility model are as follows: The lifting assembly is used to drive the bottom bracket for holding the pipe to lift, adapting to pipes of different diameter models, reducing the tooling cost. And a cooling assembly is integrated at the end of the pipe to cool the pipe during the welding process, preventing heat concentration and the pipe from being burned through, and improving the welding yield rate. Description of the Drawings

[0009] Figure 1 Schematic three-dimensional view of a welding tool for vehicle pipe fittings in one embodiment;

[0010] Figure 2 Schematic top view of a welding tool for vehicle pipe fittings. Detailed implementation manners

[0011] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0012] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manners.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0014] Such as Figures 1 to 2As shown, a vehicle pipe welding tool comprises a frame 1, a lifting component 2, a clamping component 3, a bottom bracket 4, a side top cylinder 5 and a cooling component 6. The lifting component 2 is installed on the frame 1, and the output end of the lifting component 2 is connected to the bottom bracket 4 to drive the bottom bracket 4 to move up and down. Two side top cylinders 5 are installed side by side and spaced apart on the bottom bracket 4. The clamping component 3 comprises a mounting frame 31, a first cylinder 32 and a flip clamp 33. The mounting frame 31 is fixed on the table of the frame 1, the first cylinder 32 is connected to the mounting frame 31, and the output end is arranged upward, the lower end of the flip clamp 33 is connected to the output end of the first cylinder 32, and the middle part of the flip frame 33 is movably connected to the mounting frame 31 through a pin shaft. The cooling component 6 comprises a second cylinder 61, a stand 62 and a cooling cylinder 63. The second cylinder 61 is connected to the frame 1 through the stand 62, and the output end of the second cylinder 61 is connected to the cooling cylinder 63. Specifically, in this embodiment, the frame 1 adopts a frame structure with high structural strength. The lifting assembly 2 is installed on the frame 1 to drive the bottom bracket 4 to rise and fall, and then drive the pipes placed on the bottom bracket 4 to rise and fall, so that the pipes can be coaxial with the cooling assembly 6, and ensure that the clamping assembly 3 can adapt to the pipes and press them. Because the bottom bracket 4 is liftable, pipes of different diameters can be kept coaxial with the cooling assembly 6, which is suitable for pipes of different models. At the same time, in order to prevent the workpiece from shifting during welding, we use external crimping to fix the pipes. The clamping assembly 3 includes a mounting frame 31, a first cylinder 32 and a flip clamp 33. The first cylinder 32 drives the flip clamp 33 to rotate, which can act on the surface of the pipe to prevent the pipe from shifting during welding and reduce the welding accuracy. At the same time, when welding pipe fittings, it is inevitable that the temperature of the pipe fittings at the welding point will rise sharply. In order to achieve rapid cooling of the temperature rise of the pipe fittings and prevent welding through, we set a set of cooling components 6 at the end of the pipe fittings, including a second cylinder 61, a stand 62 and a cooling tube 63. During welding, the second cylinder 61 drives the cooling tube 63 to extend and insert into the pipe fitting. When it reaches the specified depth, the cooling tube 63 is provided with an internal support structure, which can be hydraulic or pneumatic internal support. This embodiment uses a pneumatic support structure, which is a prior art and will not be described in detail here. The cooling tube 63 expands so that its surface collides with the inner wall of the pipe fitting. A liquid cooling pipe is buried in the cooling tube 63 for connecting with the external cooling system. After the cooling tube 63 contacts the pipe fitting, the heat accumulated at the pipe fitting welding point can be guided out to prevent heat concentration from causing thin-walled pipe fittings to be welded through, thereby improving the welding yield rate.

[0015] like Figures 1 to 2As shown in the figure, the lifting assembly 2 includes a lifting cylinder 21, a guide groove 22 and a sliding plate 23. The lifting cylinder 21 is installed below the frame 1, and its output end penetrates through the tabletop of the frame 1 and is connected to the sliding plate 23. Both ends of the sliding plate 23 are connected to the lower end of the bottom bracket 4. A vertical guide rail 41 is provided at the lower end of the bottom bracket 4, and the guide rail 41 is movably clamped with the guide groove 22. Specifically, in this embodiment, the output end of the lifting cylinder 21 extends and retracts back and forth along the vertical direction, thereby driving the bottom bracket 4 to move up and down through the sliding plate 23. In order to prevent the bottom bracket 4 from deviating during the up and down movement, we installed a guide groove 22 on the frame 1. The guide groove 22 is movably clamped with the guide rail 41 on the surface of the bottom bracket 4, thereby restricting the bottom bracket 4 to only move back and forth along the guide groove 22 and preventing the bottom bracket 4 from deviating.

[0016] As Figures 1 to 2 shown, a vertical positioning pin 42 is also provided at the upper end of the bottom bracket 4. Specifically, the positioning pin 42 is detachably installed on the bottom bracket 4 and is used to cooperate with the holes on the pipe fittings for positioning.

[0017] As Figures 1 to 2 shown, the output end of the side top cylinder 5 is provided with a rubber head 51. When the side top contacts the pipe fitting, it is a flexible contact, preventing the pipe fitting with a relatively thin wall thickness from being squeezed and deformed.

[0018] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A welding tool for automobile pipe fittings, characterized in that: It includes a frame, a lifting component, a clamping component, a bottom bracket, a side top cylinder and a cooling component. The lifting component is installed on the frame, and the output end of the lifting component is connected to the bottom bracket to drive the bottom bracket to move up and down. The two side top cylinders are installed side by side and at intervals on the bottom bracket. The clamping component includes a mounting frame, a first cylinder and a flip clamp. The mounting frame is fixed on the table top of the frame. The first cylinder is connected to the mounting frame, and the output end is set upward. The lower end of the flip clamp is connected to the output end of the first cylinder, and the middle part of the flip frame is movably connected to the mounting frame through a pin shaft. The cooling component includes a second cylinder, a stand and a cooling cylinder. The second cylinder is connected to the frame through the stand, and the output end of the second cylinder is connected to the cooling cylinder.

2. The vehicle pipe welding tool as claimed in claim 1, characterized in that: The lifting assembly includes a lifting cylinder, a guide groove and a slide plate. The lifting cylinder is installed under the frame, and its output end passes through the table top of the frame and is connected to the slide plate. The two ends of the slide plate are connected to the lower end of the bottom bracket. The lower end of the bottom bracket is provided with a vertical guide rail, and the guide rail is movably connected to the guide groove.

3. The vehicle pipe welding tool as claimed in claim 1, characterized in that: A vertical positioning pin is also provided at the upper end of the bottom bracket.

4. The vehicle pipe welding tool as claimed in claim 1, characterized in that: The output end of the side push cylinder is provided with a rubber head.

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