A handheld laser welder cooling device

By introducing an airflow cooling system consisting of a fan, a through-pipe, an air duct, and air holes into the handheld laser welding machine, along with a protective structure including a take-up roller, protective cloth, elastic rope, and protective plate, the problems of slow workpiece cooling and easy damage to the welding gun after welding are solved, achieving rapid cooling and safe operation.

CN224543453UActive Publication Date: 2026-07-24JIANGCHENBEI INTELLIGENT TECHNOLOGY (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGCHENBEI INTELLIGENT TECHNOLOGY (SUZHOU) CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The slow cooling of the workpiece after welding makes it inconvenient for workers to handle, and the excessively high surface temperature of the welding gun can easily damage it and poses a risk of burns.

Method used

Design a cooling device for a handheld laser welding machine. The device uses a fan, a pipe, a duct, and vents to conduct airflow to accelerate heat dissipation from the welding torch and the workpiece. It is also equipped with a winding roller, protective cloth, elastic rope, and protective plate to prevent slag from splashing and reduce heat transfer.

Benefits of technology

It enables rapid cooling of the workpiece and welding torch, reducing the risk of damage to the welding torch and injury to workers, and improving operational safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of handheld laser welding machine cooling device, including welding gun;The welding gun side is fixedly connected with fan, the fan both ends are communicated with pipe, the pipe one end is communicated with air duct, the air duct is fixedly connected with welding gun, the air duct one side is communicated with multiple air holes, when working, fan starts, fan transmission airflow to pipe, airflow is transmitted from air duct, along welding gun end, act on workpiece welding part, such that it can accelerate workpiece and the air circulation of the barrel part of welding gun, quickly take away heat, reach the effect of cooling, it is convenient for staff to take the workpiece welded, also convenient for the placement of welding gun, the surface temperature of welding gun is too high after use, not easy to contact with other objects, such that it can cause damage to welding gun, reduce the service life of welding gun, meanwhile, such that it can reduce the phenomenon that staff is scalded by welding gun and workpiece.
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Description

Technical Field

[0001] This utility model relates to the field of handheld laser welding technology, and in particular to a cooling device for a handheld laser welding machine. Background Technology

[0002] Handheld laser welding machines are advanced welding equipment that integrates high precision, high efficiency, and portability. Using a high-energy-density laser beam as a heat source, they can be flexibly operated through a handheld welding head. They can quickly complete various processes such as spot welding, lap welding, and butt welding of metal materials. They have advantages such as small heat-affected zone, small deformation, high welding strength, and no need for welding materials or only a small amount of filler. They are widely used in industries such as automobile manufacturing, electronics, hardware and kitchenware, and medical devices. They are especially suitable for the precision welding needs of small batches, multiple varieties, or complex structural parts, and are an ideal upgrade and replacement solution for traditional electric welding, argon arc welding, and other processes.

[0003] However, when using handheld laser welding, the surface temperature of the welding gun becomes too high after use, making it difficult to contact other objects. This can damage the welding gun and reduce its service life. At the same time, the temperature of the welded part of the workpiece is too high, and it cools down too slowly when placed at room temperature, making it inconvenient for workers to handle and store. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem in the prior art that the workpiece cools too slowly after welding, making it inconvenient for workers to handle.

[0005] To solve the above-mentioned technical problems, this utility model provides a cooling device for a handheld laser welding machine, including a welding torch. A fan is fixedly connected to one side of the welding torch, and both ends of the fan are connected to a connecting pipe. One end of the connecting pipe is connected to a gas guide pipe, which is fixedly connected to the welding torch. Multiple air holes are connected to one side of the gas guide pipe. During operation, the welding torch is first started and aligned with the workpiece for welding. After welding, the welding torch is turned off, and the fan is started. The fan transmits airflow to the connecting pipe, and the airflow exits from the gas guide pipe, travels along the end of the welding torch, and acts on the welding area of ​​the workpiece. This accelerates the airflow between the workpiece and the barrel of the welding torch. The system facilitates rapid heat dissipation, effectively cooling the welded workpiece and allowing workers to easily handle it. It also streamlines the placement of the welding torch, preventing damage and extending its lifespan due to excessive surface temperature after use. This design also reduces the risk of burns to workers from the welding torch and workpiece. By incorporating a fan, air duct, and vents, the system accelerates heat dissipation from both the welding torch and workpiece, enabling workers to quickly store and retrieve the torch and workpiece, minimizing cooling time and thus speeding up the welding process.

[0006] In one embodiment of this utility model, supports are provided on both sides of the air hole. The supports are fixedly connected to the welding gun. A take-up roller is rotatably connected to one side of the supports. A protective cloth is fixedly connected to the bottom of the take-up roller. An elastic rope is fixedly connected to the bottom of the protective cloth. When the welding gun is idle during operation, the protective cloth is rolled up by the take-up roller. When the welding gun is used, the protective cloth is pulled, the take-up roller rotates, and the protective cloth is unrolled. Then the elastic rope is stretched open and put on the handle of the welding gun or the wrist of the worker. The protective cloth can protect the worker's hands and reduce the phenomenon of welding slag splashing and causing injury to the worker during welding. By setting up the take-up roller, protective cloth, and elastic rope to isolate the handle of the welding gun, the protective cloth blocks the welding slag splashing and reduces the phenomenon of injury to the worker when using the welding gun.

[0007] In one embodiment of this utility model, a handle is fixedly connected to one side of the take-up roller. The handle is rotatably connected to the bracket, and a positioning pin is slidably connected to the middle of the handle. The positioning pin is engaged with the bracket. During operation, after the protective cloth is used, the handle is rotated, which drives the take-up roller to rotate, thereby rolling up the protective cloth. Then, the positioning pin is passed through the handle and inserted into the bracket to fix the handle, reducing the phenomenon of the handle rotating on its own due to external factors. The elastic rope is hung on the positioning pin to fix the protective cloth, reducing the phenomenon of the protective cloth rotating on its own, which would cause the take-up roller to fail to roll up.

[0008] In one embodiment of this utility model, a protective plate is provided on the top of the welding gun. The protective plate is fixedly connected to the welding gun. During operation, the protective plate prevents welding slag from splashing and accidentally injuring the workers. The protective plate protects the workers.

[0009] In one embodiment of this utility model, a lens is provided in the middle of the protective plate. The lens is fixedly connected to the protective plate. When working, the lens is colored to reduce the welding sparks from being too dazzling and causing workers to be unable to see the welding area.

[0010] In one embodiment of this utility model, a laser light is provided on the top of the lens. The laser light is fixedly connected to the protective plate. When working, the laser light is turned on and illuminates the workpiece, which is parallel to the welding point, and can guide the operator.

[0011] In one embodiment of this utility model, the protective cloth is a heat insulation material, and the elastic rope is set to a semi-circular shape. During operation, the protective cloth can isolate heat transfer, optimize the working environment of the staff, and reduce the occurrence of slippage caused by sweaty palms, which could lead to welding errors.

[0012] In one embodiment of this utility model, the protective plate is square in shape, and the lens is made of plastic. During operation, the lens is made of high-temperature resistant plastic and is not easily damaged by splashing welding slag.

[0013] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0014] The present invention discloses a cooling device for a handheld laser welding machine. By setting up a fan, a through pipe, an air duct, and air holes to conduct airflow, it accelerates the heat dissipation of the welding gun and the workpiece, making it easier for operators to quickly store and retrieve the welding gun and the workpiece, reducing the waiting time for cooling, and thus speeding up the welding process.

[0015] The present invention discloses a cooling device for a handheld laser welding machine. By setting up a take-up roller, a protective cloth, and an elastic rope to isolate the welding gun handle, the protective cloth prevents welding slag from splashing and reduces the possibility of injury to workers when using the welding gun. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the air guide tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protective fabric of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the winding roller of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the protective plate of this utility model;

[0022] Explanation of reference numerals in the accompanying drawings: 1. Welding gun; 11. Fan; 12. Through pipe; 13. Air guide pipe; 14. Air hole; 2. Support; 21. Take-up roller; 22. Protective cloth; 23. Elastic rope; 3. Handle; 31. Positioning pin; 4. Protective plate; 5. Lens; 6. Laser light. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figures 1 to 2As shown, this utility model discloses a cooling device for a handheld laser welding machine, comprising a welding torch 1. A fan 11 is fixedly connected to one side of the welding torch 1, and both ends of the fan 11 are connected to a connecting pipe 12. One end of the connecting pipe 12 is connected to a gas guide pipe 13, which is fixedly connected to the welding torch 1. Multiple air holes 14 are connected to one side of the gas guide pipe 13. During operation, the welding torch 1 is first started and aligned with the workpiece for welding. After welding, the welding torch 1 is turned off, and the fan 11 is started. The fan 11 transmits airflow to the connecting pipe 12, and the airflow exits from the gas guide pipe 13, flowing along the end of the welding torch 1 and acting on the welding area of ​​the workpiece. This accelerates the welding process between the workpiece and the barrel of the welding torch 1. The air circulation quickly removes heat, achieving a cooling effect and facilitating the handling of welded workpieces. It also facilitates the placement of the welding torch 1. After use, the surface temperature of the welding torch 1 becomes excessively high, making it difficult to contact other objects, which could damage it and reduce its lifespan. This also reduces the risk of workers being burned by the welding torch 1 and the workpiece. By incorporating a fan 11, a connecting pipe 12, an air duct 13, and air holes 14, airflow is conducted, accelerating heat dissipation from the welding torch 1 and the workpiece. This allows workers to quickly store and retrieve the welding torch 1 and the workpiece, reducing waiting time for cooling and thus speeding up the welding process.

[0025] Reference Figure 3 As shown, brackets 2 are provided on both sides of the air hole 14. The brackets 2 are fixedly connected to the welding gun 1. A take-up roller 21 is rotatably connected to one side of the bracket 2. A protective cloth 22 is fixedly connected to the bottom of the take-up roller 21. An elastic rope 23 is fixedly connected to the bottom of the protective cloth 22. When the welding gun 1 is idle during operation, the protective cloth 22 is rolled up by the take-up roller 21. When the welding gun 1 is used, the protective cloth 22 is pulled, the take-up roller 21 rotates, and the protective cloth 22 is unrolled. Then the elastic rope 23 is stretched open and put on the handle of the welding gun 1 or the wrist of the worker. The protective cloth 22 can protect the worker's hands and reduce the phenomenon of welding slag splashing and causing injury to the worker during welding. By setting up the take-up roller 21, the protective cloth 22, and the elastic rope 23 to isolate the handle of the welding gun 1, the protective cloth 22 blocks the welding slag splash and reduces the phenomenon of injury to the worker when using the welding gun 1.

[0026] Reference Figure 4As shown, a handle 3 is fixedly connected to one side of the take-up roller 21. The handle 3 is rotatably connected to the bracket 2. A positioning pin 31 is slidably connected to the middle of the handle 3. The positioning pin 31 is engaged with the bracket 2. During operation, after the protective cloth 22 is used, the handle 3 is rotated, which drives the take-up roller 21 to rotate, thereby rolling up the protective cloth 22. Then, the positioning pin 31 is passed through the handle 3 and inserted into the bracket 2 to fix the handle 3, reducing the phenomenon of the handle 3 rotating on its own due to external factors. The elastic rope 23 is hung on the positioning pin 31 to fix the protective cloth 22, reducing the phenomenon of the protective cloth 22 rotating on its own, which would cause the take-up roller 21 to fail to roll up.

[0027] Reference Figure 5 As shown, the welding gun 1 is equipped with a protective plate 4 on its top. The protective plate 4 is fixedly connected to the welding gun 1. During operation, the protective plate 4 prevents welding slag from splashing and accidentally injuring the workers. The protective plate 4 protects the workers.

[0028] Reference Figure 5 As shown, a lens 5 is provided in the middle of the protective plate 4. The lens 5 is fixedly connected to the protective plate 4. When working, the lens 5 is colored to reduce the welding sparks from being too dazzling and causing the workers to be unable to see the welding area.

[0029] Reference Figure 5 As shown, a laser lamp 6 is provided on the top of the lens 5. The laser lamp 6 is fixedly connected to the protective plate 4. When working, the laser lamp 6 is turned on and shines on the workpiece, which is parallel to the welding point, and can guide the operator.

[0030] Reference Figure 3 As shown, the protective cloth 22 is a heat insulation material, and the elastic rope 23 is set in a semi-circular shape. When working, the protective cloth 22 can isolate heat transfer, optimize the working environment of the staff, and reduce the occurrence of slipping caused by sweaty palms, which could lead to welding errors.

[0031] Reference Figure 5 As shown, the protective plate 4 is square in shape, and the lens 5 is made of plastic. During operation, the lens 5 is made of high-temperature resistant plastic and is not easily damaged by splashing welding slag.

[0032] Working Principle: First, the welding gun 1 is started and aligned with the workpiece for welding. After welding, the welding gun 1 is turned off, and the fan 11 is started. The fan 11 transmits airflow to the through pipe 12, and the airflow is transmitted from the air guide pipe 13, along the end of the welding gun 1, acting on the welding area of ​​the workpiece. This accelerates the airflow between the workpiece and the barrel of the welding gun 1, quickly removing heat and achieving a cooling effect. This makes it easier for workers to handle the welded workpiece and also facilitates the placement of the welding gun 1. After use, the surface temperature of the welding gun 1 is too high, making it difficult to contact with other objects, as this would damage the welding gun 1 and reduce its service life. This also allows for... To reduce the occurrence of burns to workers from the welding gun 1 and the workpiece, airflow is conducted through a fan 11, a connecting pipe 12, a duct 13, and air holes 14 to accelerate heat dissipation from the welding gun 1 and the workpiece. This allows workers to quickly store and retrieve the welding gun 1 and the workpiece, reducing waiting time for cooling and thus speeding up the welding process. When the welding gun 1 is idle, the protective cloth 22 is rolled up by the take-up roller 21. When using the welding gun 1, pulling the protective cloth 22 causes the take-up roller 21 to rotate, unwinding the protective cloth 22. Then, the elastic rope 23 is stretched out and placed around the handle of the welding gun 1 or the worker's wrist. The protective cloth 22 can protect the worker from burns. To protect the hands of the welding gun 1 and reduce the risk of injury from welding slag spatter during welding, a winding roller 21, a protective cloth 22, and an elastic rope 23 are used to insulate the handle of the welding gun 1. The protective cloth 22 blocks welding slag spatter, reducing the risk of injury to workers using the welding gun 1. After the protective cloth 22 is used, the handle 3 is turned, which drives the winding roller 21 to rotate, thereby winding up the protective cloth 22. Then, the positioning pin 31 is passed through the handle 3 and inserted into the bracket 2 to fix the handle 3, reducing the possibility of the handle 3 rotating on its own due to external factors. The elastic rope 23 is hung on the positioning pin 31 to protect the protective cloth 22. The protective cloth 22 is fixed to reduce the possibility of the winding roller 21 failing to rewind due to its own rotation. The protective plate 4 blocks welding slag from splashing and injuring the workers. The protective plate 4 protects the workers. The lens 5 is colored to reduce the glare of welding sparks, which may prevent workers from seeing the welding area clearly. The laser light 6 illuminates the workpiece and is parallel to the welding area after being turned on, which can guide the workers' operation. The protective cloth 22 can isolate heat transfer, optimize the workers' working environment, and reduce the occurrence of slippage caused by sweaty palms, which may lead to welding errors. The lens 5 is made of high-temperature resistant plastic and is not easily damaged by splashing welding slag.

[0033] 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 cooling device for a handheld laser welding machine, comprising a welding torch (1); characterized in that: A fan (11) is fixedly connected to one side of the welding gun (1). A pipe (12) is connected to both ends of the fan (11). A gas guide pipe (13) is connected to one end of the pipe (12). The gas guide pipe (13) is fixedly connected to the welding gun (1). A plurality of air holes (14) are connected to one side of the gas guide pipe (13).

2. The cooling device for a handheld laser welding machine according to claim 1, characterized in that: The air hole (14) is provided with a bracket (2) on both sides. The bracket (2) is fixedly connected to the welding gun (1). A take-up roller (21) is rotatably connected to one side of the bracket (2). A protective cloth (22) is fixedly connected to the bottom of the take-up roller (21). An elastic rope (23) is fixedly connected to the bottom of the protective cloth (22).

3. The cooling device for a handheld laser welding machine according to claim 2, characterized in that: A handle (3) is fixedly connected to one side of the take-up roller (21). The handle (3) is rotatably connected to the bracket (2). A positioning pin (31) is slidably connected to the middle of the handle (3). The positioning pin (31) is engaged with the bracket (2).

4. The cooling device for a handheld laser welding machine according to claim 3, characterized in that: The welding gun (1) is provided with a protective plate (4) on the top, and the protective plate (4) is fixedly connected to the welding gun (1).

5. A cooling device for a handheld laser welding machine according to claim 4, characterized in that: The protective plate (4) is provided with a lens (5) in the middle, and the lens (5) is fixedly connected to the protective plate (4).

6. A cooling device for a handheld laser welding machine according to claim 5, characterized in that: The lens (5) is equipped with a laser lamp (6) on top, and the laser lamp (6) is fixedly connected to the protective plate (4).

7. A cooling device for a handheld laser welding machine according to claim 6, characterized in that: The protective cloth (22) is a heat insulation material, and the elastic rope (23) is set in a semi-circular shape.

8. A cooling device for a handheld laser welding machine according to claim 7, characterized in that: The protective plate (4) is square in shape, and the lens (5) is made of plastic.