Welding tool

Abstract

The utility model discloses a welding tool which comprises a vertically-arranged base plate and two longitudinal pipe positioning plates which are arranged on the base plate and used for supporting longitudinal pipes, a longitudinal pipe installation position is arranged above each longitudinal pipe positioning plate, two pairs of guiding pieces are arranged on the longitudinal pipe installation positions, the two pairs of guiding pieces are arranged at intervals in the vertical direction, and the longitudinal pipe positioning plates are arranged on the longitudinal pipe installation positions. Each pair of guide pieces is used for clamping the two sides of a longitudinal pipe; the base plate is further provided with a transverse pipe positioning plate, the transverse pipe positioning plate is located between the two longitudinal pipe installation positions, a transverse pipe can be placed on the transverse pipe positioning plate, and the two ends of the transverse pipe abut against the longitudinal pipes. By the adoption of the technical scheme, according to the welding tool, the base plate is vertically arranged, positioning is carried out through the self gravity of the pipe fitting, use of an air cylinder for pushing the pipe fitting to the positioning plate is reduced, the pipe fitting automatically moves downwards to the positioning plate through the gravity, extra pushing is not needed, and clamping and positioning are faster.

Description

Technical Field

[0001] This utility model relates to a welding fixture and belongs to the technical field of welding equipment. Background Technology

[0002] When welding workpieces using welding robots, rapid clamping and positioning are crucial steps to ensure welding accuracy and efficiency. For high-volume production lines, rapid clamping and positioning means that multiple workpieces can be processed in a short time, greatly improving production efficiency and reducing equipment downtime. Furthermore, precise positioning is key to ensuring welding quality. Welding robots rely on the accurate position and orientation of the workpiece to perform welding tasks. Even slight deviations in workpiece clamping can affect the welding path and angle, leading to decreased welding quality, such as inconsistent welds or insufficient strength. Rapid clamping and positioning systems avoid such errors by ensuring the precise repeatability of workpiece positioning.

[0003] In the production process, it is often necessary to weld pipes into H-shaped workpieces. These workpieces use two longitudinal pipes and a transverse pipe connecting them. Typically, the pipes are laid flat on a base plate, where guide rollers clamp and limit the position of the two longitudinal pipes. A positioning plate is placed at one end of each longitudinal pipe to block it, and a cylinder at the other end presses the pipe firmly against the positioning plate. The transverse pipe is then inserted between the two longitudinal pipes and pressed against its positioning plate by a cylinder. Additionally, a cylinder is used to press the pipe downwards from above. After these clamping and positioning operations, a welding robot performs automatic welding. This method of laying the pipe flat requires a cylinder to push the pipe onto the positioning plate, and a relatively large number of cylinders are used. Therefore, it is necessary to improve this traditional clamping structure for laying pipe flat to reduce the number of cylinders used and to enable rapid clamping and positioning of the pipe. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a welding fixture that changes the previous method of laying the pipe flat, and instead sets the base plate vertically, so that the pipe can move down by its own weight and be supported by the positioning plate, thereby reducing the number of cylinders used.

[0005] To achieve the above objectives, this utility model provides a welding fixture, comprising a vertically arranged base plate, two longitudinal tube positioning plates for supporting longitudinal tubes on the base plate, each longitudinal tube positioning plate having a longitudinal tube mounting position above it, and two pairs of guide members arranged at intervals in the vertical direction at the longitudinal tube mounting position, each pair of guide members being used to clamp the two sides of the longitudinal tube; a transverse tube positioning plate is also provided on the base plate, the transverse tube positioning plate being located between the two longitudinal tube mounting positions, the transverse tube being able to be placed on the transverse tube positioning plate with both ends abutting against the longitudinal tube; a longitudinal tube clamping cylinder for pressing the longitudinal tube onto the base plate, and a transverse tube clamping cylinder for pressing the transverse tube onto the base plate are also provided on the base plate.

[0006] The guide component is a guide roller.

[0007] There are two horizontal tube positioning plates, which are respectively supported at both ends of the horizontal tube.

[0008] There are two horizontal tube clamping cylinders, which clamp the horizontal tube at both ends respectively.

[0009] The horizontal tube positioning plates are in two sets, with two plates in each set; the two sets of horizontal tube positioning plates are arranged at intervals in the vertical direction to support the two horizontal tubes.

[0010] Two longitudinal tube clamping cylinders are provided at each of the longitudinal tube mounting positions to clamp the upper and lower parts of the longitudinal tube respectively.

[0011] The cylinder arm of the longitudinal tube clamping cylinder is connected to a first connecting plate, and a first pressure head is provided on the first connecting plate. The longitudinal tube clamping cylinder can drive the first connecting plate to approach or move away from the longitudinal tube, so that the first pressure head presses against the longitudinal tube or lifts away from the longitudinal tube.

[0012] A second connecting plate is connected to the cylinder arm of the horizontal tube pressing cylinder. A second pressing head is provided on the second connecting plate. The horizontal tube pressing cylinder can drive the second connecting plate to move closer to or away from the horizontal tube, so that the second pressing head presses against the horizontal tube or lifts away from the horizontal tube.

[0013] The welding fixture also includes a base, and the substrate is detachably fixed to the base.

[0014] By adopting the above technical solution, the welding fixture of this utility model has the following advantages compared with the prior art: By setting the base plate vertically and using the weight of the pipe itself for positioning, the use of cylinders to push the pipe to the positioning plate is reduced. The pipe automatically moves down to the positioning plate by gravity without additional pushing, making clamping and positioning faster. Vertical placement reduces the possibility of lateral displacement, and the guide and positioning plate provide more reliable support. The base plate and the base can be separated and fixed, which is convenient for disassembly and replacement, increasing the maintainability and adaptability of the equipment. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure with horizontal and vertical tubes placed in Example 1.

[0017] Figure 3 for Figure 2 Another perspective diagram.

[0018] Figure 4 This is a schematic diagram of the structure with horizontal and vertical tubes placed in Example 2. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] As shown in Figures 1-3, a welding fixture of the present invention includes a base 1 and a vertically arranged base plate 2, wherein the base plate 2 is detachably fixed to the base 1 by bolts.

[0021] On the substrate 2, there are two longitudinal tube positioning plates 3 for supporting the longitudinal tube 100. Above each longitudinal tube positioning plate 3 is a longitudinal tube mounting position. Two pairs of guide members 4 are provided at the longitudinal tube mounting position. The two pairs of guide members 4 are arranged at intervals in the vertical direction. Each pair of guide members 4 is used to clamp the two sides of the longitudinal tube 100. In this embodiment, the guide members 4 are guide rollers. When placing the longitudinal tube 100, the longitudinal tube 100 is inserted between the two guide rollers from top to bottom. The guide rollers guide and limit the longitudinal tube 100. Under its own weight, the longitudinal tube 100 can slide down onto the longitudinal tube positioning plate 3 and be supported by the longitudinal tube positioning plate 3.

[0022] A pair of horizontal tube positioning plates 5 are also provided on the substrate 2. The horizontal tube positioning plates 5 are located between two vertical tube mounting positions. The horizontal tube 200 can be placed on the horizontal tube positioning plates 5 and its two ends abut against the vertical tube 100.

[0023] The substrate 2 is also equipped with a longitudinal tube clamping cylinder 6 for clamping the longitudinal tube 100 onto the substrate 2, and a transverse tube clamping cylinder 7 for clamping the transverse tube onto the substrate 2. Two longitudinal tube clamping cylinders are provided at each longitudinal tube mounting position, for clamping the upper and lower parts of the longitudinal tube respectively. Two transverse tube clamping cylinders 7 are also provided, for clamping the two ends of the transverse tube respectively. When the transverse and longitudinal tubes 100 are installed in place, they are clamped together by the transverse tube clamping cylinders 7 and the longitudinal tube clamping cylinders 6 to prevent displacement caused by external forces during welding.

[0024] In this embodiment, a first connecting plate 61 is connected to the cylinder arm of the longitudinal tube clamping cylinder 6, and a first pressing head 62 is provided on the first connecting plate 61. The longitudinal tube clamping cylinder 6 can drive the first connecting plate 61 to move closer to or away from the longitudinal tube, thereby pressing the first pressing head 62 onto or lifting it away from the longitudinal tube. Similarly, a second connecting plate 71 is connected to the cylinder arm of the transverse tube clamping cylinder 7, and a second pressing head 72 is provided on the second connecting plate 71. The transverse tube clamping cylinder 7 can drive the second connecting plate 71 to move closer to or away from the transverse tube, thereby pressing the second pressing head 72 onto or lifting it away from the transverse tube.

[0025] like Figure 4 As shown, in this embodiment, there are two sets of horizontal tube positioning plates 5, with two horizontal tube positioning plates 5 in each set; the two sets of horizontal tube positioning plates 5 are arranged at intervals in the vertical direction to support the two horizontal tubes.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A welding fixture, characterized in that: The system includes a vertically arranged base plate, on which are two longitudinal tube positioning plates for supporting longitudinal tubes. Each longitudinal tube positioning plate has a longitudinal tube mounting position above it. Two pairs of guide members are provided at the longitudinal tube mounting positions, and the two pairs of guide members are arranged at intervals in the vertical direction. Each pair of guide members is used to clamp the two sides of the longitudinal tube. A horizontal tube positioning plate is also provided on the base plate, located between the two longitudinal tube mounting positions. The horizontal tube can be placed on the horizontal tube positioning plate and its two ends abut against the longitudinal tube. The system also includes a longitudinal tube clamping cylinder for pressing the longitudinal tube onto the base plate and a horizontal tube clamping cylinder for pressing the horizontal tube onto the base plate.

2. The welding fixture as described in claim 1, characterized in that: The guide component is a guide roller.

3. The welding fixture as described in claim 1, characterized in that: There are two horizontal tube clamping cylinders, which clamp the horizontal tube at both ends respectively.

4. The welding fixture as described in claim 1, characterized in that: The horizontal tube positioning plates are in two sets, with two plates in each set; the two sets of horizontal tube positioning plates are arranged at intervals in the vertical direction to support the two horizontal tubes.

5. The welding fixture as described in claim 1, characterized in that: Two longitudinal tube clamping cylinders are provided at each of the longitudinal tube mounting positions to clamp the upper and lower parts of the longitudinal tube respectively.

6. The welding fixture as described in any one of claims 1-5, characterized in that: The cylinder arm of the longitudinal tube clamping cylinder is connected to a first connecting plate, and a first pressure head is provided on the first connecting plate. The longitudinal tube clamping cylinder can drive the first connecting plate to approach or move away from the longitudinal tube, so that the first pressure head presses against the longitudinal tube or lifts away from the longitudinal tube.

7. The welding fixture as described in any one of claims 1-5, characterized in that: The horizontal tube clamping cylinder can drive the second connecting plate to move closer to or away from the horizontal tube, thereby causing the second pressure head to press against or lift away from the horizontal tube.

8. The welding fixture as described in any one of claims 1-5, characterized in that: The welding fixture also includes a base, and the substrate is detachably fixed to the base.

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