Tooling for laser welding
Patent Information
- Application Number
- CN202522413254.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-13
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-13
AI Technical Summary
[0002]激光焊接工艺中，零件的稳定夹持是确保焊接质量的关键因素之一；现有的许多激光焊接工装采用多个独立的动力源分别驱动夹板移动来实现零件的夹持，每个气缸单独控制一个夹板的运动，虽然能够实现零件的夹持，但由于各个动力源之间难以实现完全同步，导致两个夹板在移动过程中容易出现速度不一致、位移不同步的情况，会使零件受到不均匀的夹紧力，为此，提出一种激光焊接用工装
一、通过采用一个电缸作为动力源，电缸驱动第一滑板移动，并利用齿轮、第一齿杆和第二齿杆的传动机制，驱动两个夹板同步移动以实现零件夹持，实现了第一滑板和第二滑板的同步、反向移动，从而确保夹板能够稳定地对待激光焊接零件进行夹持固定，保证了焊接的质量。
Smart Images
Figure CN224913788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser welding technology, specifically to a tooling for laser welding. Background Technology
[0002] In laser welding, stable clamping of parts is one of the key factors to ensure welding quality. Many existing laser welding fixtures use multiple independent power sources to drive the movement of clamping plates to achieve part clamping. Each cylinder controls the movement of one clamping plate individually. Although it can achieve part clamping, it is difficult to achieve complete synchronization between the various power sources. As a result, the two clamping plates are prone to inconsistent speeds and asynchronous displacements during movement, which will cause the parts to be subjected to uneven clamping forces. Therefore, a new laser welding fixture is proposed. Utility Model Content
[0003] The purpose of this invention is to provide a tooling for laser welding to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser welding fixture, including an operating table, wherein a clamping assembly is provided on one side of the operating table, the clamping assembly being used to clamp and fix the parts to be laser welded; The clamping assembly is provided with a connecting component on one side, and the operating table is provided with a cooling component on one side. The clamping assembly includes a fixed frame, and a rotating shaft is rotatably connected to the inner wall of the fixed frame via a bearing. A gear is fixedly sleeved on the outer side of the rotating shaft, and a first toothed rod and a second toothed rod are respectively meshed on the outer side of the gear. A second sliding plate is fixed to one end of the first toothed rod, and a first sliding plate is fixed to one end of the second toothed rod. A connecting rod is provided on the top of the first and second sliding plates respectively, and a clamp is fixed to one side of the connecting rod. The connecting assembly includes several sliders, and each slider has a sliding rod and a locking rod fixed at both ends.
[0005] Preferably, an electric cylinder is fixed to the bottom of the operating table, and the push rod end of the electric cylinder is fixed to one side of the first sliding plate; The first and second slide plates each have a second slide groove on one side, and the first and second toothed rods are slidably connected to the inside of the second slide groove.
[0006] Preferably, the top of the operating table is provided with a plurality of first sliding grooves, the connecting rod is slidably connected to the inner side of the first sliding grooves, and the fixing frame is fixed to the bottom of the operating table.
[0007] Preferably, the bottom of the operating table is fixed with two guide rods, the outer side of which is fixedly inserted into one side of the fixed frame, and the first and second slide plates are slidably connected to the outer side of the guide rods through linear bearings.
[0008] Preferably, a protective layer is fixed to one side of the clamping plate; When the first and second sliding plates bring the clamping plates closer to each other, the protective layer clamps and fixes the parts to be welded.
[0009] Preferably, a third groove is provided on one side of both the first and second sliding plates, and the slider is slidably connected to the inside of the third groove.
[0010] Preferably, a limit block is fixed at the bottom of the connecting rod, and a locking groove is provided on one side of the limit block; When the locking rod is inserted into the lock groove, the connecting rod is in a fixed state; when the locking rod leaves the lock groove, the connecting rod is in a disassembled state.
[0011] Preferably, the inner wall of the third slide groove is provided with a limiting groove, the limiting block is adapted to the inner side of the limiting groove, and a pull rod is fixed to one end of the slide rod; A spring connects the slider to the third slide groove, and a cover plate located on the spring side is bolted to one side of the first and second slide plates.
[0012] Preferably, the cooling component includes a water tank, a water pump is installed on the inner wall of the water tank, and the outlet of the water pump is connected to a first water pipe; The control panel has several cooling channels inside, and the outlet of the cooling channels is connected to the water tank through a second water pipe.
[0013] Preferably, the outlet of the first water pipe is connected to the inlet of the cooling channel, a cooler is installed on the outside of the water tank, and a liquid filling pipe is provided on the top of the water tank. A switch is installed on the top of the control panel, and the output of the switch is electrically connected to the input of the electric cylinder and the water pump, respectively.
[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: First, by using an electric cylinder as a power source, the electric cylinder drives the first sliding plate to move, and by using the transmission mechanism of gears, the first rack and the second rack, the two clamping plates move synchronously to clamp the parts. This achieves synchronous and reverse movement of the first and second sliding plates, thereby ensuring that the clamping plates can stably clamp and fix the parts to be laser welded, thus guaranteeing the quality of the welding.
[0015] Second, by pulling the lever, the sliding rod and slider can be moved, causing the locking rod to disengage from the locking groove, easily releasing the fixing of the connecting rod and clamp plate without complicated tools or cumbersome steps. When installing a new connecting rod, the limiting block is embedded in the limiting groove to position the connecting rod in the appropriate position. After releasing the lever, the spring force allows the slider, sliding rod and lever to move automatically in the opposite direction, and the locking rod is reinserted into the locking groove to fix the connecting rod. This simplifies the clamp plate replacement process and saves time and labor costs.
[0016] Third, the coolant is driven by a water pump to form a closed loop between the water tank, the first water pipe, the cooling channel and the second water pipe, ensuring that the coolant can continuously remove heat and provide a stable and lasting cooling effect for the welding area. The coolant flows in the cooling channel and exchanges heat with the operating table and the parts to be welded, avoiding thermal expansion of the operating table and the parts to be welded due to heat. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view structure of the present invention; Figure 3 This is a schematic diagram of the gear meshing structure of this utility model; Figure 4 This is a schematic diagram of the slider structure of this utility model; Figure 5 This is a schematic diagram of the cooling channel structure of this utility model; Figure 6 This is a schematic diagram of the cover plate structure of this utility model; Figure 7 This is a schematic diagram of the main cross-sectional structure of the water tank of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Operating table; 2. Clamping assembly; 21. Clamping plate; 22. Protective layer; 23. First slide groove; 24. Electric cylinder; 25. Rotating shaft; 26. Gear; 27. First rack; 28. Second slide groove; 29. First sliding plate; 210. Fixing frame; 211. Second sliding plate; 212. Guide rod; 213. Second rack; 214. Connecting rod; 3. Cooling assembly; 31. Water tank; 32. Refrigerator; 33. First water pipe; 34. Second water pipe; 35. Cooling channel; 36. Water pump; 4. Switch; 5. Connecting assembly; 51. Pull rod; 52. Slide rod; 53. Slider; 54. Limiting block; 55. Limiting groove; 56. Locking groove; 57. Third slide groove; 58. Locking rod; 59. Spring; 6. Cover plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0022] Example Please see Figure 1-7 This utility model provides a technical solution: a laser welding fixture, including an operating table 1, a clamping component 2 on one side of the operating table 1 for clamping and fixing the parts to be laser welded; a connecting component 5 on one side of the clamping component 2, and a cooling component 3 on one side of the operating table 1; a switch 4 is installed on the top of the operating table 1, the output end of the switch 4 is electrically connected to the input end of the electric cylinder 24 and the water pump 36 respectively, a laser welding head is provided on one side of the operating table 1, and a wire feeding mechanism (not shown in the figure) is provided on one side of the laser welding head. The laser welding head and the wire feeding mechanism work separately, and the welding wire is delivered to the laser welding head through a hose, thereby welding the clamped and fixed parts.
[0023] The clamping assembly 2 includes a fixed frame 210. A rotating shaft 25 is rotatably connected to the inner wall of the fixed frame 210 via bearings. A gear 26 is fixedly sleeved on the outer side of the rotating shaft 25. A first rack 27 and a second rack 213 are respectively meshed on the outer side of the gear 26. The gear 26 meshes with both the first rack 27 and the second rack 213. The first rack 27 moves in the opposite direction to the second rack 213. The meshing clearance between the gear 26 and the rack is ≤ 0.05mm. Preferably, a bellows-shaped protective cover (not shown in the figure) is sleeved on the outer side of the first rack 27 and the second rack 213 to prevent external contamination of the rack. At the same time, the meshing points of the rack and the gear 26 are regularly lubricated and maintained. The first rack 27 is fixed to one end of the second slide plate 211, and the second rack 213 is fixed to one end of the first slide plate 29. The top of the first slide plate 29 and the second slide plate 211 are respectively provided with connecting rods 214, and a clamping plate 21 is fixed to one side of the connecting rod 214. An electric cylinder 24 is fixed to the bottom of the operating table 1, and the push rod end of the electric cylinder 24 is fixed to one side of the first slide plate 29. The push rod end of the electric cylinder 24 pushes the first slide plate 29 to slide along the guide rod 212. The first slide plate 29 drives the second rack 213 to move. Through the meshing transmission of the gear 26 and the second rack 213, the first rack 27 moves in the opposite direction, thereby driving the second slide plate 211 to move synchronously in the opposite direction to the first slide plate 29. The first slide plate 29 and the second slide plate 211 each have a second slide groove 28 on one side. The first toothed rod 27 and the second toothed rod 213 are slidably connected to the inside of the second slide groove 28. The top of the operating table 1 has several first slide grooves 23. The connecting rod 214 is slidably connected to the inside of the first slide groove 23. The top of the operating table 1 has several first slide grooves 23. The connecting rod 214 is slidably connected to the inside of the first slide groove 23, which can limit the movement of the connecting rod 214 and ensure the clamping direction of the clamping plate 21. The fixing frame 210 is fixed to the bottom of the operating table 1.
[0024] Two guide rods 212 are fixed at the bottom of the operating table 1. A protective cover is sleeved on the outside of the guide rods 212. The outside of the guide rods 212 is fixedly inserted into one side of the fixed frame 210. The first slide plate 29 and the second slide plate 211 are slidably connected to the outside of the guide rods 212 through linear bearings. The first slide plate 29 and the second slide plate 211 drive the clamping plate 21 to move closer to each other through the connecting rod 214. The protective layer 22 on the inner side of the clamping plate 21 contacts the part to be welded, so as to achieve clamping and fixing.
[0025] A protective layer 22 is fixed on one side of the clamping plate 21; the clamping force of the clamping plate 21 and the protective layer 22 on the part is 50-200N. The material of the protective layer 22 can be rubber or silicone. When the first sliding plate 29 and the second sliding plate 211 drive the clamping plate 21 to move closer to each other, the protective layer 22 clamps and fixes the part to be welded. A third sliding groove 57 is provided on one side of the first sliding plate 29 and the second sliding plate 211. The slider 53 is slidably connected to the inside of the third sliding groove 57.
[0026] The connecting assembly 5 includes several sliders 53, with a sliding rod 52 and a locking rod 58 fixed to each end of the slider 53. A limit block 54 is fixed to the bottom of the connecting rod 214, and a locking groove 56 is provided on one side of the limit block 54. When the locking rod 58 is inserted into the locking groove 56, the connecting rod 214 is in a fixed state; when the locking rod 58 is removed from the locking groove 56, the connecting rod 214 is in a disassembled state. Under normal circumstances, the spring 59 pushes the slider 53, causing the locking rod 58 to insert into the locking groove 56, thereby fixing the connecting rod 214. The inner wall of the third slide groove 57 is provided with a limiting groove 55, and the limiting block 54 is adapted to the inner side of the limiting groove 55. One end of the slide rod 52 is fixed with a pull rod 51. A spring 59 is connected between the slider 53 and the third slide groove 57. The first slide plate 29 and the second slide plate 211 are connected to a cover plate 6 located on the side of the spring 59 by bolts. The spring 59 can be replaced by removing the cover plate 6. The spring 59 is inspected monthly and replaced quarterly. The spring 59 has a certain compression, which gives the spring 59 a certain elastic potential energy. When the pull rod 51 is pulled outward, the slide rod 52 drives the slider 53 to compress the spring 59, so that the locking rod 58 leaves the inner side of the locking groove 56. At this time, the connecting rod 214 is in the disassembled state and can be replaced.
[0027] The cooling component 3 includes a water tank 31, which is made of metal. A water pump 36 is installed on the inner wall of the water tank 31, and the outlet of the water pump 36 is connected to a first water pipe 33. Several cooling channels 35 are opened inside the operating table 1. The outlet of the cooling channel 35 is connected to the water tank 31 through a second water pipe 34. The coolant flows in the cooling channel 35, absorbs the heat generated by welding, and then flows back to the water tank 31 through the second water pipe 34.
[0028] The outlet of the first water pipe 33 is connected to the inlet of the cooling channel 35. A cooler 32 is installed on the outside of the water tank 31. The cooling end of the cooler 32 is attached to the outside of the water tank 31. There can be multiple coolers 32. A fan (not shown in the figure) is installed on the heating end of the cooler 32 to assist in the heat dissipation of the cooler 32. A liquid filling pipe is provided on the top of the water tank 31. The cooler 32 is installed on the outside of the water tank 31, and its cooling end is attached to the metal shell of the water tank 31 to conduct and cool the coolant, maintaining the low temperature of the coolant.
[0029] Working principle: When it is necessary to fix the parts to be laser welded, the switch 4 installed on the top of the operating table 1 first sends a start signal to the electric cylinder 24. The push rod end of the electric cylinder 24 then extends and pushes the first slide plate 29, which is fixedly connected to it, to move to one side. Since one side of the first slide plate 29 is fixedly connected to the second gear 213, and the second gear 213 meshes with the gear 26 fixedly sleeved on the outside of the rotating shaft 25, which is rotatably connected to the inner wall of the fixing frame 210 through a bearing, the movement of the first slide plate 29 will drive the second gear 213 to move synchronously, thereby driving the gear 26 to rotate. During the rotation of gear 26, it will drive the first rack 27, which meshes with the other side, to move in the opposite direction to the second rack 213. Since one end of the first rack 27 is fixed to the second slide plate 211, and both the first slide plate 29 and the second slide plate 211 are slidably connected to the outside of two guide rods 212 fixed at the bottom of the operating table 1 via linear bearings, under the limiting and guiding action of the guide rods 212, the first rack 27 will drive the second slide plate 211 to move closer to the first slide plate 29. Simultaneously, the connecting rods 214 respectively provided on the top of the first sliding plate 29 and the second sliding plate 211 will move synchronously with the sliding plates, and the clamping plate 21 fixed on one side of the connecting rod 214 will also move closer. When the first sliding plate 29 and the second sliding plate 211 drive the clamping plate 21 to move closer to each other to a suitable position, the protective layer 22 fixed on one side of the clamping plate 21 will come into contact with the part to be welded, thereby achieving clamping and fixing of the part to be laser welded. At this time, the worker can hold the laser welding gun to perform welding operations at the weld seam. When the clamp plate 21 needs to be replaced, first pull the lever 51 in the connecting assembly 5 to one side. Since one end of the lever 51 is fixedly connected to the slide bar 52 and the other end of the slide bar 52 is fixedly connected to the slider 53, and the slider 53 is slidably connected to the inner side of the third groove 57 opened on both the first slide plate 29 and the second slide plate 211, when the lever 51 is pulled, it will drive the slide bar 52 and the slider 53 to move away from the connecting rod 214 along the third groove 57. During the movement of slider 53, the locking rod 58 fixed at one end will gradually move away from the inside of the locking groove 56 opened on one side of the limiting block 54 fixed at the bottom of connecting rod 214. When the locking rod 58 completely moves away from the inside of the locking groove 56, the connecting rod 214 loses the fixing restriction of the locking rod 58 and is in a disassembled state. At this time, the connecting rod 214 together with the clamping plate 21 can be removed from the first sliding plate 29 and the second sliding plate 211 for replacement. When the slider 53 moves, the spring 59 connecting the slider 53 and the third slide groove 57 will be compressed. When the new connecting rod 214 is installed, the limiting block 54 can be embedded in the limiting groove 55 to achieve the positioning of the connecting rod 214. After the replacement is completed, the pull rod 51 is released, and the compressed spring 59 will generate a restoring force, pushing the slider 53, the slide rod 52 and the pull rod 51 to move in the opposite direction, so that the locking rod 58 is re-inserted into the locking groove 56 of the limiting block 54. At this time, the connecting rod 214 is in a fixed state, and the replacement of the clamp 21 is completed.
[0030] During the laser welding process, a certain amount of coolant is first added to the water tank 31 of the cooling component 3 through the liquid addition pipe provided at the top. Then, the start signal is sent to the water pump 36 installed on the inner wall of the water tank 31 through the switch 4. After the water pump 36 starts, it draws out the coolant in the water tank 31 and delivers it to the inlet of several cooling channels 35 opened inside the operating table 1 through the first water pipe 33 connected to the outlet of the water pump 36. After the coolant enters the cooling channel 35, it will flow in the channel and exchange heat with the operating table 1 and the parts to be welded. After absorbing heat, it flows out from the outlet of the cooling channel 35 and then flows back to the inside of the water tank 31 through the second water pipe 34 connected between the outlet of the cooling channel 35 and the water tank 31, forming a coolant circulation. At the same time, the cooler 32 installed on the outside of the water tank 31 is activated. The cooling end of the cooler 32 is attached to the outside of the water tank 31, which can quickly cool down the coolant that has absorbed heat and flows back into the water tank 31, ensuring that the coolant circulating into the cooling channel 35 always maintains a low temperature, thereby continuously and efficiently cooling the welding area of the operating table 1, avoiding thermal expansion and maintaining positioning accuracy.
[0031] In summary, by using an electric cylinder 24 as a power source, the electric cylinder 24 drives the first slide plate 29 to move, and by utilizing the transmission mechanism of gear 26, first rack 27 and second rack 213, the two clamping plates 21 are driven to move synchronously to clamp the parts. This achieves synchronous and reverse movement of the first slide plate 29 and the second slide plate 211, thereby ensuring that the clamping plates 21 can stably clamp and fix the parts to be laser welded, thus guaranteeing the quality of the welding.
[0032] Pulling the lever 51 moves the slide bar 52 and slider 53, causing the locking rod 58 to disengage from the locking groove 56, easily releasing the fixation of the connecting rod 214 and the clamping plate 21 without complicated tools or cumbersome steps. When installing a new connecting rod 214, the limiting block 54 is embedded in the limiting groove 55, positioning the connecting rod 214 in the appropriate position. After releasing the lever 51, the elastic force of the spring 59 allows the slider 53, slide bar 52, and lever 51 to move automatically in the opposite direction, and the locking rod 58 is reinserted into the locking groove 56, thus fixing the connecting rod 214. This simplifies the replacement process of the clamping plate 21 and saves time and labor costs.
[0033] The coolant is driven by the water pump 36 to form a closed loop between the water tank 31, the first water pipe 33, the cooling channel 35 and the second water pipe 34, ensuring that the coolant can continuously remove heat and provide a stable and lasting cooling effect for the welding area. The coolant flows in the cooling channel 35 and exchanges heat with the operating table 1 and the parts to be welded, avoiding thermal expansion of the operating table 1 and the parts to be welded due to heat.
[0034] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A laser welding fixture, comprising an operating table (1), characterized in that, The operating table (1) is provided with a clamping assembly (2) on one side, which is used to clamp and fix the parts to be laser welded; The clamping assembly (2) is provided with a connecting assembly (5) on one side, and the operating table (1) is provided with a cooling assembly (3) on one side. The clamping assembly (2) includes a fixed frame (210), and a rotating shaft (25) is rotatably connected to the inner wall of the fixed frame (210) via a bearing. A gear (26) is fixedly sleeved on the outer side of the rotating shaft (25), and a first toothed rod (27) and a second toothed rod (213) are respectively meshed on the outer side of the gear (26). The first toothed rod (27) is fixed with a second sliding plate (211) at one end, and the second toothed rod (213) is fixed with a first sliding plate (29) at one end. The top of the first sliding plate (29) and the second sliding plate (211) are respectively provided with connecting rods (214), and a clamping plate (21) is fixed on one side of the connecting rod (214). The connecting component (5) includes several sliders (53), and each slider (53) has a sliding rod (52) and a locking rod (58) fixed at both ends.
2. The laser welding fixture according to claim 1, characterized in that, An electric cylinder (24) is fixed to the bottom of the operating table (1), and the push rod end of the electric cylinder (24) is fixed to one side of the first sliding plate (29); The first slide plate (29) and the second slide plate (211) are each provided with a second slide groove (28) on one side, and the first toothed rod (27) and the second toothed rod (213) are slidably connected to the inside of the second slide groove (28).
3. The laser welding fixture according to claim 1, characterized in that, The top of the operating table (1) is provided with several first slide grooves (23), the connecting rod (214) is slidably connected to the inside of the first slide groove (23), and the fixing frame (210) is fixed to the bottom of the operating table (1).
4. The laser welding fixture according to claim 1, characterized in that, The bottom of the operating table (1) is fixed with two guide rods (212). The outer side of the guide rods (212) is fixedly inserted into one side of the fixing frame (210). The first slide plate (29) and the second slide plate (211) are slidably connected to the outer side of the guide rods (212) through linear bearings.
5. The laser welding fixture according to claim 4, characterized in that, A protective layer (22) is fixed on one side of the clamp (21); When the first sliding plate (29) and the second sliding plate (211) bring the clamping plate (21) closer to each other, the protective layer (22) clamps and fixes the parts to be welded.
6. The laser welding fixture according to claim 1, characterized in that, The first slide plate (29) and the second slide plate (211) are each provided with a third slide groove (57) on one side, and the slider (53) is slidably connected to the inside of the third slide groove (57).
7. The laser welding fixture according to claim 6, characterized in that, The bottom of the connecting rod (214) is fixed with a limiting block (54), and a locking groove (56) is provided on one side of the limiting block (54). When the locking rod (58) is inserted into the inner side of the locking groove (56), the connecting rod (214) is in a fixed state. When the locking rod (58) leaves the inner side of the locking groove (56), the connecting rod (214) is in a disassembled state.
8. The laser welding fixture according to claim 7, characterized in that, The inner wall of the third slide groove (57) is provided with a limiting groove (55), the limiting block (54) is adapted to the inner side of the limiting groove (55), and a pull rod (51) is fixed at one end of the slide rod (52). A spring (59) is connected between the slider (53) and the third slide (57), and a cover plate (6) located on the side of the spring (59) is bolted to one side of the first slide plate (29) and the second slide plate (211).
9. A laser welding fixture according to claim 1, characterized in that, The cooling component (3) includes a water tank (31), and a water pump (36) is installed on the inner wall of the water tank (31). The outlet of the water pump (36) is connected to a first water pipe (33). The operating table (1) has several cooling channels (35) inside, and the water outlet of the cooling channel (35) is connected to the water tank (31) through a second water pipe (34).
10. A laser welding fixture according to claim 9, characterized in that, The outlet of the first water pipe (33) is connected to the inlet of the cooling channel (35). A cooler (32) is installed on the outside of the water tank (31). A liquid filling pipe is provided on the top of the water tank (31). A switch (4) is installed on the top of the control panel (1), and the output end of the switch (4) is electrically connected to the input end of the electric cylinder (24) and the water pump (36).