Welding gun cooling device for laser welding

Abstract

The utility model discloses a welding gun cooling device for laser welding. The welding gun cooling device comprises a welding gun, a lower shell is arranged on the outer side of the welding gun, the upper end of the lower shell is rotationally connected with an upper shell through a rotating shaft, springs are fixedly connected to the inner wall of the lower shell and the inner wall of the upper shell, clamping plates are fixedly connected to the other ends of the springs, cooling fins are fixedly connected to the outer sides of the clamping plates, and cooling fins are fixedly connected to the outer sides of the cooling fins. A water cooling plate is fixedly connected to the inner wall of the front side clamping plate, a heat conduction soft silica gel pad is fixedly connected to the end, close to the welding gun, of the water cooling plate, a water bag strip is fixedly connected to the inner wall of the rear side clamping plate, fan covers are rotationally connected to the rear ends of the outer sides of the lower shell and the upper shell through damping rotating shafts, and fans are fixedly connected to the interiors of the fan covers. Through the use of the water cooling plate and the water bag strip, energy consumption is effectively reduced through partitioned accurate cooling, heat dissipation efficiency is improved through cooperation of air cooling and water cooling, performance attenuation of the welding gun caused by high temperature is reduced, the service life is prolonged, and it is guaranteed that welding operation is stable and efficient.

Description

Technical Field

[0001] This utility model relates to the field of cooling devices, and more particularly to a welding torch cooling device for laser welding. Background Technology

[0002] The welding torch cooling device is a core component that ensures stable operation of the welding torch and extends its service life. It is mainly used to prevent key components such as the laser, optical lenses, and focusing head from being damaged by high temperatures.

[0003] Existing laser welding torch cooling devices have a relatively simple structure, mostly consisting of fixed cooling coils. They have poor fit and cannot be adapted to welding torches of different diameters. During high-power welding, there is a large temperature difference between the front and rear ends of the welding torch. Using the same cooling intensity in both high and low temperature zones leads to energy waste or insufficient cooling in certain areas, resulting in uneven heat dissipation and inadequate heat dissipation capacity.

[0004] Therefore, to address the problems of poor fit, inability to adapt to welding torches of different diameters, and uneven heat dissipation in existing laser welding torch cooling devices, a laser welding torch cooling device can be designed. Utility Model Content

[0005] To overcome the problems of poor fit of existing laser welding torch cooling devices, inability to adapt to welding torches of different diameters, and uneven heat dissipation.

[0006] The technical solution of this utility model is as follows: a welding torch cooling device for laser welding, including a welding torch; it also includes a water-cooling plate and a water-filled strip. A lower housing is provided on the outside of the welding torch. An upper housing is rotatably connected to the upper end of the lower housing via a rotating shaft. Springs are fixedly connected to the inner walls of both the lower and upper housings. A clamping plate is fixedly connected to the other end of each spring. A heat sink is fixedly connected to the outside of the clamping plate. A water-cooling plate is fixedly connected to the inner wall of the front clamping plate. A thermally conductive soft silicone pad is fixedly connected to the end of the water-cooling plate near the welding torch. A water-filled strip is fixedly connected to the inner wall of the rear clamping plate. A fan is rotatably connected to the rear ends of both the lower and upper housings via a damping rotating shaft. A fan is fixedly connected inside the fan shroud.

[0007] Preferably, the upper housing is opened, the welding gun is placed on the clamping plate of the lower housing, and after the upper housing is closed, the spring generates a pre-tightening force to push the thermally conductive soft silicone pad and the water bag strip to fit tightly against the surface of the welding gun. After the cooling system is started, the low-temperature coolant supplied by the dual independent water supply flows into the water-cooled plate and the water bag strip circuit respectively. During the welding process, the heat in the high-temperature area is efficiently transferred to the water-cooled plate through the thermally conductive soft silicone pad and carried away, while the heat in the low-temperature area is absorbed by the water bag strip. The residual heat is conducted to the heat sink through the clamping plate. The fan angle is adjusted and the fan is turned on, and the air cooling and water cooling work together to dissipate heat.

[0008] Preferably, magnetic plates are fixedly connected to the ends of the lower and upper shells that are close to each other, and the lower and upper shells are connected by a threaded fixing bolt.

[0009] Preferably, there are two sets of clamping plates, with three clamping plates arranged in a circular array in each set, and multiple heat sinks arranged at equal intervals on the outer side of the clamping plates.

[0010] Preferably, each spring has a telescopic rod fitted inside it. One end of the telescopic rod is fixedly connected to the clamping plate, and the other end of the telescopic rod is fixedly connected to the corresponding lower shell and upper shell respectively.

[0011] Preferably, two cooling inlet pipes are fixedly connected to the outer side of the lower housing, and two cooling outlet pipes are fixedly connected to the upper end of the upper housing.

[0012] Preferably, three water-cooled plates are arranged in a ring array, with each adjacent water-cooled plate connected by a flexible hose. One end of the front inlet pipe extends into the interior of the lower housing and is fixedly connected to the rear end of the left water-cooled plate, while the other end of the front outlet pipe extends into the interior of the upper housing and is fixedly connected to the rear end of the upper water-cooled plate.

[0013] Preferably, the water bladder strips are arranged in a ring array of three groups, with three water bladder strips in each group. The three water bladder strips in each group are connected, and adjacent groups of water bladder strips are connected by the same flexible tube. The rear end of the left water bladder strip is connected to the rear cooling inlet pipe, and the rear end of the upper water bladder strip is connected to the rear cooling outlet pipe.

[0014] The beneficial effects of this utility model are:

[0015] This laser welding torch cooling device utilizes a water-cooled plate and water-filled strips. The upper housing is opened, and the welding torch is placed on the clamping plate of the lower housing. After closing the upper housing, a spring generates a pre-tension force, pushing the thermally conductive soft silicone pad and water-filled strip to tightly adhere to the welding torch surface. The adaptive adjustment structure accommodates welding torches of different specifications, making installation and replacement convenient and highly stable. Once the cooling system is activated, dual-path independent supply of low-temperature coolant flows into the water-cooled plate and water-filled strip circuits respectively. During welding, heat from the high-temperature zone is efficiently transferred to the water-cooled plate via the thermally conductive soft silicone pad and carried away, while heat from the low-temperature zone is absorbed by the water-filled strips. This precise, zoned cooling effectively reduces energy consumption. Residual heat is conducted to the heat sink via the clamping plate. Adjusting the fan angle and turning on the fan, the combined effect of air and water cooling improves heat dissipation efficiency, reduces performance degradation of the welding torch due to high temperatures, extends its service life, and ensures stable and efficient welding operations. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model. Figure 1 ;

[0017] Figure 2 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model. Figure 2 ;

[0018] Figure 3 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model. Figure 3 ;

[0019] Figure 4 The diagram shown is a schematic representation of the structure of the water-cooled plate of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the water bladder strip structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Welding gun; 2. Lower housing; 3. Upper housing; 4. Spring; 5. Clamping plate; 6. Heat sink; 7. Water cooling plate; 8. Thermally conductive soft silicone pad; 9. Water bladder strip; 10. Fan cover; 11. Fan; 12. Magnetic suction plate; 13. Fixing bolt; 14. Telescopic rod; 15. Cooling inlet pipe; 16. Cooling outlet pipe; 17. Flexible hose. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a laser welding torch cooling device, including a welding torch 1; it also includes a water-cooling plate 7 and a water-filled strip 9. A lower housing 2 is provided on the outer side of the welding torch 1. An upper housing 3 is rotatably connected to the upper end of the lower housing 2 via a pivot. Springs 4 are fixedly connected to the inner walls of both the lower housing 2 and the upper housing 3. A clamping plate 5 is fixedly connected to the other end of each spring 4. A heat sink 6 is fixedly connected to the outer side of the clamping plate 5. A water-cooling plate 7 is fixedly connected to the inner wall of the front clamping plate 5. A thermally conductive soft silicone pad 8 is fixedly connected to the end of the water-cooling plate 7 near the welding torch 1. A water-filled strip 9 is fixedly connected to the inner wall of the rear clamping plate 5. A fan shroud 10 is rotatably connected to the rear ends of both the lower housing 2 and the upper housing 3 via a damping pivot. A fan 11 is fixedly connected inside the fan shroud 10. In use, the upper housing 3 is opened. The welding torch 1 is placed on the clamping plate 5 of the lower housing 2. After the upper housing 3 is closed, the spring 4 generates a pre-tightening force to push the thermally conductive soft silicone pad 8 and the water bag strip 9 to fit tightly against the surface of the welding torch 1. The adaptive adjustment structure is adapted to welding torches 1 of different specifications. It is easy to install and replace and has strong stability. After the cooling system is started, the low-temperature coolant supplied by the dual independent water supply flows into the water cooling plate 7 and the water bag strip 9 circuit respectively. During the welding process, the heat in the high-temperature area is efficiently transferred to the water cooling plate 7 through the thermally conductive soft silicone pad 8 and carried away. The heat in the low-temperature area is absorbed by the water bag strip 9. The zoned and precise cooling effectively reduces energy consumption. The residual heat is conducted to the heat sink 6 through the clamping plate 5. Adjust the angle of the fan shroud 10 and turn on the fan 11. The air cooling and water cooling work together to improve the heat dissipation efficiency, reduce the performance degradation of the welding torch caused by high temperature, extend its service life, and ensure stable and efficient welding operations.

[0024] Please see Figure 1 , Figure 3 and Figure 4 In this embodiment, magnetic absorbing plates 12 are fixedly connected to the ends of the lower housing 2 and the upper housing 3 that are close to each other. The lower housing 2 and the upper housing 3 are threadedly connected by fixing bolts 13. When closed, the lower housing 2 and the upper housing 3 are automatically attracted by the magnetic absorbing plates 12 and locked by fixing bolts 13. The overall structure is stable. There are two sets of clamping plates 5. Each set of clamping plates 5 has three clamping plates arranged in a ring array. Multiple heat sinks 6 are arranged at equal intervals on the outside of the clamping plates 5. The clamping plates 5 form a stable clamping heat on the welding gun 1 from three directions. The heat is conducted to the heat sinks 6 through the clamping plates 5. The springs 4 are all fitted with telescopic rods 14. One end of the telescopic rod 14 is fixedly connected to the clamping plate 5. The other end of the telescopic rod 14 is fixedly connected to the corresponding lower housing 2 and upper housing 3 respectively. The telescopic rod 14 effectively prevents the springs 4 from shifting laterally when subjected to force.

[0025] Please see Figure 2 , Figure 4 and Figure 5 In this embodiment, two cooling inlet pipes 15 are fixedly connected to the outer side of the lower housing 2, and two cooling outlet pipes 16 are fixedly connected to the upper end of the upper housing 3. The two cooling inlet pipes 15 are respectively connected to the high and low pressure outlets of the external chiller, and the two cooling outlet pipes 16 are connected to the return water pipe. Three water-cooled plates 7 are arranged in a ring array, and adjacent water-cooled plates 7 are connected by flexible hoses 17. One end of the front cooling inlet pipe 15 extends into the interior of the lower housing 2 and is fixedly connected to the rear end of the left water-cooled plate 7. The other end of the front cooling outlet pipe 16 extends into the interior of the upper housing 3 and is fixedly connected to the upper water-cooled plate 7. The rear end is fixedly connected. The low-temperature coolant enters the water-cooled plate 7 sequentially from the inlet pipe 15 through the hose 17, and then exits from the outlet pipe 16. The water bladder strips 9 are arranged in a ring array in three groups, with three water bladder strips 9 in each group. The three water bladder strips 9 in each group are connected. Adjacent groups of water bladder strips 9 are connected by the same hose 17. The rear end of the left water bladder strip 9 is connected to the rear inlet pipe 15, and the rear end of the upper water bladder strip 9 is connected to the rear outlet pipe 16. The low-temperature coolant enters the three groups of water bladder strips 9 sequentially from the inlet pipe 15 through the hose 17, and exits from the outlet pipe 16.

[0026] During operation, the upper housing 3 is opened, and the welding gun 1 is placed on the clamping plate 5 of the lower housing 2. The lower housing 2 and the upper housing 3 are automatically attracted by the magnetic 12 and locked by the fixing bolt 13. The spring 4 generates a pre-tightening force to push the thermally conductive soft silicone pad 8 and the water bag strip 9 to fit tightly against the surface of the welding gun 1. The adaptive adjustment structure is adapted to welding guns 1 of different specifications. After the cooling system is started, the low-temperature coolant supplied by the dual independent water supply flows into the water-cooled plate 7 and the water bag strip 9 circuit from the two cooling pipes 15 respectively. During the welding process, the heat in the high-temperature zone is efficiently transferred to the water-cooled plate 7 through the thermally conductive soft silicone pad 8 and carried away. The heat in the low-temperature zone is absorbed by the water bag strip 9 and discharged through the cooling pipe 16. The zoned and precise cooling effectively reduces energy consumption. The residual heat is conducted to the heat sink 6 through the clamping plate 5. The angle of the fan shroud 10 is adjusted and the fan 11 is turned on. The air cooling and water cooling work together to improve the heat dissipation efficiency, reduce the performance degradation of the welding gun caused by high temperature, extend its service life, and ensure stable and efficient welding operations.

[0027] Through the above steps, the spring 4 generates a preload force to push the thermally conductive soft silicone pad 8 and the water bladder strip 9 to adaptively adjust and adapt to welding guns 1 of different specifications. The low-temperature coolant supplied by the dual independent water supply flows into the water-cooled plate 7 and the water bladder strip 9 circuit respectively. The zoned and precise cooling effectively reduces energy consumption. The synergy of air cooling and water cooling improves heat dissipation efficiency, thus solving the problem of poor fit of the existing laser welding gun cooling device, which cannot adapt to welding guns of different diameters and has uneven heat dissipation.

Claims

1. A laser welding torch cooling device, comprising a welding torch (1); characterized in that: It also includes a water-cooled plate (7) and a water bag strip (9). A lower housing (2) is provided on the outside of the welding gun (1). The upper end of the lower housing (2) is rotatably connected to the upper housing (3) via a rotating shaft. Springs (4) are fixedly connected to the inner walls of both the lower housing (2) and the upper housing (3). A clamping plate (5) is fixedly connected to the other end of each spring (4). A heat sink (6) is fixedly connected to the outside of the clamping plate (5). A water-cooled plate (7) is fixedly connected to the inner wall of the front clamping plate (5). A thermally conductive soft silicone pad (8) is fixedly connected to the end of the water-cooled plate (7) near the welding gun (1). A water bag strip (9) is fixedly connected to the inner wall of the rear clamping plate (5). A fan shroud (10) is rotatably connected to the rear ends of both the lower housing (2) and the upper housing (3) via a damping rotating shaft. A fan (11) is fixedly connected inside the fan shroud (10).

2. The laser welding torch cooling device according to claim 1, characterized in that: The lower housing (2) and the upper housing (3) are both fixedly connected to magnetic plates (12) at their close ends, and the lower housing (2) and the upper housing (3) are connected by a fixing bolt (13) threaded connection.

3. The laser welding torch cooling device according to claim 1, characterized in that: There are two sets of clamping plates (5), and each set of clamping plates (5) has three clamping plates (5) arranged in a ring array. Multiple heat sinks (6) are arranged at equal intervals on the outside of the clamping plates (5).

4. The laser welding torch cooling device according to claim 1, characterized in that: The spring (4) is fitted with a telescopic rod (14) inside. One end of the telescopic rod (14) is fixedly connected to the clamping plate (5), and the other end of the telescopic rod (14) is fixedly connected to the corresponding lower shell (2) and upper shell (3).

5. The laser welding torch cooling device according to claim 1, characterized in that: Two cooling inlet pipes (15) are fixedly connected to the outer side of the lower shell (2), and two cooling outlet pipes (16) are fixedly connected to the upper end of the upper shell (3).

6. The laser welding torch cooling device according to claim 5, characterized in that: Three water-cooled plates (7) are arranged in a ring array. Adjacent water-cooled plates (7) are connected by hoses (17). One end of the front inlet pipe (15) extends into the interior of the lower housing (2) and is fixedly connected to the rear end of the left water-cooled plate (7). The other end of the front outlet pipe (16) extends into the interior of the upper housing (3) and is fixedly connected to the rear end of the upper water-cooled plate (7).

7. The laser welding torch cooling device according to claim 6, characterized in that: The water bladder strips (9) are arranged in a ring array in three groups, with three water bladder strips (9) in each group. The three water bladder strips (9) in each group are connected. Adjacent groups of water bladder strips (9) are connected by the same hose (17). The rear end of the left water bladder strip (9) is connected to the rear cooling inlet pipe (15), and the rear end of the upper water bladder strip (9) is connected to the rear cooling outlet pipe (16).

Images