High-precision laser welding machine

Abstract

The utility model relates to the technical field of laser welding, in particular to a high-precision laser welding machine. Comprising a machining table, and further comprises supporting plates symmetrically arranged on the upper surface of the machining table; the fixing assemblies are symmetrically arranged above the machining table and used for fixing the workpieces; and the overturning assembly is arranged outside one of the supporting plates. By means of the fixing assemblies, a workpiece can be effectively fixed and clamped, by means of the overturning assembly, the workpiece can be conveniently overturned, by means of the adjusting assembly, the distance between the two fixing assemblies can be effectively adjusted, and by means of the air suction assembly, the workpiece can be conveniently and rapidly overturned. The device is simple in structure and convenient to operate, toxic gas can be effectively adsorbed and filtered, a filter screen can be conveniently disassembled and assembled by a worker through the arranged mounting assembly, and the overall practicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, and particularly to a high-precision laser welding machine. Background Art

[0002] A laser welding machine is a device that uses a laser beam to weld materials. It uses a laser beam with a high power density to melt the materials at the welding joint. During the welding process, the energy of the laser beam locally heats the welding joint and melts the materials in the heating area. Subsequently, the materials cool and solidify to form a weld seam, thereby achieving a welded connection. When welding a workpiece, a high-precision laser welding machine is required.

[0003] When traditional welding machines are used to weld workpieces, they cannot effectively and conveniently flip the workpieces. As a result, when it is necessary to weld other surfaces of the workpiece, workers need to manually flip the workpiece. Manual flipping not only reduces the welding efficiency of the workpiece but also may cause workers to be scalded, presenting a certain safety hazard. Moreover, during the welding process of the workpiece, a large amount of toxic gas is generated, and most traditional welding machines do not have an effective filtering structure. This leads to the direct emission of toxic gas into the air, which not only pollutes the environment but also affects the physical health of workers, reducing the overall practicality of the welding machine.

[0004] Therefore, those skilled in the art have provided a high-precision laser welding machine to solve the problems raised in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision laser welding machine, including a processing table, and further including:

[0006] Support plates, symmetrically arranged on the upper surface of the processing table;

[0007] Fixing components, symmetrically arranged above the processing table and used for fixing the workpiece;

[0008] A flipping component, arranged outside one of the support plates and used for flipping the workpiece;

[0009] Adjusting components, symmetrically arranged above the processing table and used for adjusting the distance between the two fixing components;

[0010] A horizontal mechanism, arranged on the upper surface of the processing table. An L-shaped plate is arranged inside the horizontal mechanism. A front-back mechanism is arranged at the bottom of the L-shaped plate. A welding device is fixedly connected to the inside of the front-back mechanism through an electric push rod;

[0011] The rear plate is fixedly connected to the rear surface of the L-shaped plate. A water storage cylinder is fixedly connected inside the rear plate. The bottom of the water storage cylinder is connected to a drain pipe through a solenoid valve. The outside of the water storage cylinder is connected to a water inlet cylinder. A sealing cover is provided outside the water inlet cylinder. The upper surface of the water storage cylinder is connected to an exhaust pipe, and a filter screen is provided inside the exhaust pipe;

[0012] The air suction assembly is arranged on the upper surface of the L-shaped plate and is used for adsorbing and filtering toxic gases;

[0013] The installation assembly is symmetrically arranged outside the exhaust pipe and is used for disassembling and assembling the filter screen.

[0014] As a further improvement of this technical solution, the fixing assembly includes U-shaped plates symmetrically arranged above the processing table. Guide grooves for the movement of the connecting rods are symmetrically opened on the upper surface of the U-shaped plates. The top ends of every two connecting rods are fixedly connected with pull plates, and the bottom ends of every two connecting rods are fixedly connected with clamping plates. A plurality of reset springs are sleeved outside the connecting rods, and a plurality of reset springs are all abutted between the clamping plates and the U-shaped plates.

[0015] As a further improvement of this technical solution, the flipping assembly includes a driving motor fixedly connected to the outside of one of the support plates. Rotating rods are rotatably connected to the opposite sides of the two support plates. The output shaft of the driving motor is fixedly connected to one end of one of the rotating rods through a coupling. The other ends of the two rotating rods are fixedly connected with connecting plates. Mounting sleeve plates are fixedly connected to the opposite sides of the two connecting plates. Movable plates are arranged inside the two mounting sleeve plates. The opposite sides of the two movable plates are respectively fixedly connected to the outsides of the two U-shaped plates.

[0016] As a further improvement of this technical solution, the adjusting assembly includes fixing plates respectively arranged on the upper surfaces of the two mounting sleeve plates. Slide rods are symmetrically arranged inside the fixing plates. A resisting plate is arranged inside the fixing plates. Guide grooves for the movement of the slide rods are opened inside the resisting plate. A plurality of resisting springs are sleeved outside the slide rods, and a plurality of resisting springs are all abutted between the resisting plate and the fixing plates. A pull ring is fixedly connected to the upper surface of the resisting plate through a top rod. Insertion plates are symmetrically arranged at the bottom of the resisting plate. Guide grooves for the movement of the insertion plates are opened on the contact surfaces of the fixing plates and the mounting sleeve plates. Guide grooves for the movement of the insertion plates are equally spaced inside the movable plates.

[0017] As a further improvement of this technical solution, the air suction assembly includes a suction pump fixedly connected to the upper surface of the L-shaped plate. Mounting blocks for installing suction heads are symmetrically arranged outside the welding equipment. The intake end of the suction pump is connected to the inside of the two suction heads through a branch pipe, and the outlet end of the suction pump is connected to the inside of the water storage cylinder through a branch pipe.

[0018] As a further improvement of the present technical solution, the installation assembly includes a fixed frame symmetrically arranged on the outside of the exhaust pipe, a connecting frame is symmetrically provided on the upper surface of the filter, an insert block is fixedly connected to the bottom of the connecting frame, a guide groove for the insert block to move is provided on the upper surface of the fixed frame, an inner plate is fixedly connected to the inside of the insert block, telescopic rods are fixedly connected on both sides of the outer wall of the inner plate, multiple telescopic ends of the telescopic rods are fixedly connected to the insert rods, connecting springs are sleeved on the outside of the multiple telescopic rods, multiple connecting springs are in contact between the insert rod and the inner plate, and guide grooves for the insert rod to move are provided on both sides of the outer walls of the insert block and the fixed frame.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In this high-precision laser welding machine, by providing a fixing component, a flipping component, an adjusting component, an air suction component and an installation component, when it is necessary to perform welding on the workpiece, it is only necessary to first fix and clamp the workpiece through the fixing component. When the workpiece is fixed, the distance between the two fixing components is adjusted through the adjusting component. When the two workpieces collide with each other, the welding equipment starts to run, and the workpiece can be effectively welded at this time. When it is necessary to weld other surfaces of the workpiece, the flipping component starts to run, and at this time the flipping component can effectively drive the workpiece to be flipped synchronously, so that it is convenient for the welding equipment to weld other surfaces of the workpiece, effectively improving the welding efficiency and safety factor of the workpiece, and making it easier to weld the workpiece. During the treatment process, a large amount of toxic gas will be generated. At this time, the suction component starts to operate. The suction component can absorb the toxic gas into the inside of the water storage cylinder. When the gas enters the inside of the water storage cylinder, the water inside the water storage cylinder can filter the particulate impurities in the gas. After the particulate impurities in the gas are filtered, the gas will float upward. At this time, the filter can effectively perform secondary filtration on the gas, thereby effectively improving the gas purification effect. When the filter needs to be disassembled and replaced, it only needs to be installed through the assembly to conveniently disassemble and assemble the filter. Through the setting of the horizontal mechanism and the front and rear mechanisms, the front and rear and horizontal position of the welding equipment can be conveniently adjusted, further improving the overall practicality of the device and saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the fixing plate in the utility model;

[0023] Figure 3Schematic diagram of the rear - view three - dimensional structure of the present utility model;

[0024] Figure 4 is Figure 1 Enlarged structural schematic diagram of area A in

[0025] Figure 5 is Figure 2 Enlarged structural schematic diagram of area B in

[0026] Figure 6 is Figure 3 Enlarged structural schematic diagram of area C in

[0027] The meanings of each label in the figure are as follows:

[0028] 1. Processing table; 2. Support plate; 3. Rotating rod; 4. Driving motor; 5. Connecting plate; 6. Mounting sleeve plate; 7. Movable plate; 8. C - shaped plate; 9. Workpiece; 10. Fixed plate; 11. Horizontal mechanism; 12. L - shaped plate; 13. Front - rear mechanism; 14. Electric push rod; 15. Welding equipment; 16. Rear plate; 17. Water storage cylinder; 18. Solenoid valve; 19. Drain pipe; 20. Water inlet cylinder; 21. Sealing cover; 22. Exhaust pipe; 23. Filter screen; 24. Suction pump; 25. Branch pipe; 26. Mounting block; 27. Suction head; 28. Fixed frame; 29. Connecting frame; 30. Insert block; 31. Connecting rod; 32. Clamp plate; 33. Return spring; 34. Slide bar; 35. Contact plate; 36. Contact spring; 37. Thumb rod; 38. Insert plate; 39. Inner plate; 40. Telescopic rod; 41. Insert rod; 42. Connecting spring. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0030] Please refer to Figure 1 - Figure 6 As shown in

[0031] Support plates 2, symmetrically arranged on the upper surface of the processing table 1;

[0032] Fixing components, symmetrically arranged above the processing table 1 and used for fixing the workpiece 9;

[0033] Flipping components, arranged outside one of the support plates 2 and used for flipping the workpiece 9;

[0034] Adjusting components, symmetrically arranged above the processing table 1 and used to adjust the distance between the two fixing components;

[0035] Horizontal mechanism 11, arranged on the upper surface of the processing table 1. Inside the horizontal mechanism 11, there is an L-shaped plate 12. At the bottom of the L-shaped plate 12, there is a front-back mechanism 13. Inside the front-back mechanism 13, a welding device 15 is fixedly connected through an electric push rod 14;

[0036] Rear plate 16, fixedly connected to the rear end surface of the L-shaped plate 12. Inside the rear plate 16, a water storage cylinder 17 is fixedly connected. The bottom of the water storage cylinder 17 is connected to a drain pipe 19 through a solenoid valve 18. The outside of the water storage cylinder 17 is connected to a water inlet cylinder 20. An outer sealing cover 21 is arranged on the outside of the water inlet cylinder 20. The upper surface of the water storage cylinder 17 is connected to an exhaust pipe 22. A filter screen 23 is arranged inside the exhaust pipe 22;

[0037] Suction assembly, arranged on the upper surface of the L-shaped plate 12 and used to adsorb and filter toxic gases;

[0038] Installation components, symmetrically arranged outside the exhaust pipe 22 and used to disassemble and assemble the filter screen 23.

[0039] The above working principle: When welding treatment is required for workpiece 9, first fix and clamp workpiece 9 through the fixing component. After workpiece 9 is fixed, adjust the distance between the two fixing components through the adjusting component. When the two workpieces 9 are in contact with each other, the welding device 15 starts to operate, and at this time, welding treatment can be effectively carried out on workpiece 9. When welding treatment is required for other surfaces of workpiece 9, the flipping component starts to operate. At this time, the flipping component can effectively drive workpiece 9 to flip synchronously, so as to facilitate the welding device 15 to carry out welding treatment on other surfaces of workpiece 9, effectively improving the welding efficiency and safety factor of workpiece 9. During the welding treatment of workpiece 9, a large amount of toxic gas will be generated. At this time, the air suction component starts to operate. The air suction component can adsorb the toxic gas into the interior of the water storage cylinder 17. When the gas enters the interior of the water storage cylinder 17, the water inside the water storage cylinder 17 can filter the particulate impurities in the gas. After the particulate impurities in the gas are filtered, the gas will float upward. At this time, the filter net 23 can effectively carry out secondary filtration treatment on the gas, thus effectively improving the purification effect of the gas. When it is necessary to disassemble and replace the filter net 23, the filter net 23 can be conveniently disassembled and assembled only through the installation component. Through the setting of the horizontal mechanism 11 and the front-back mechanism 13 (the horizontal mechanism 11 and the front-back mechanism 13 are both existing structures driven by a motor to drive a threaded rod, which are relatively common, so no detailed description is given), the front-back and horizontal positions of the welding device 15 can be conveniently adjusted, further improving the overall practicality of the device, saving time and effort.

[0040] In order to effectively fix and clamp workpiece 9, the fixing component includes U-shaped plates 8 symmetrically arranged above the processing table 1. Guide grooves for the movement of the connecting rods 31 are symmetrically opened on the upper surface of the U-shaped plates 8. The tops of every two connecting rods 31 are fixedly connected with a pulling plate, and the bottoms of every two connecting rods 31 are fixedly connected with a clamping plate 32. A return spring 33 is sleeved outside multiple connecting rods 31, and multiple return springs 33 are all abutted between the clamping plate 32 and the U-shaped plate 8. When it is necessary to fix and clamp workpiece 9, first pull the pulling plate. At this time, the pulling plate will drive the connecting rods 31 to move synchronously, and the connecting rods 31 will drive the clamping plate 32 to move synchronously. During the movement of the clamping plate 32, the return spring 33 will be compressed. Then place workpiece 9 between the clamping plate 32 and the U-shaped plate 8, and then release the pulling plate. At this time, the return spring 33 resets and drives the clamping plate 32 to move synchronously. When the bottom of the clamping plate 32 abuts against the upper surface of workpiece 9, effective fixing and clamping treatment of workpiece 9 can be carried out through the cooperation between the clamping plate 32 and the U-shaped plate 8.

[0041] Considering that the workpiece 9 needs to be flipped when welding other surfaces of the workpiece 9, the flipping assembly includes a driving motor 4 fixedly connected to the outside of one of the support plates 2. Rotating rods 3 are rotatably connected to the opposite sides of the two support plates 2. The output shaft of the driving motor 4 is fixedly connected to one end of one of the rotating rods 3 through a coupling. Connecting plates 5 are fixedly connected to the other ends of the two rotating rods 3. Mounting sleeve plates 6 are fixedly connected to the opposite sides of the two connecting plates 5. Moving plates 7 are provided inside the two mounting sleeve plates 6. The opposite sides of the two moving plates 7 are fixedly connected to the outside of the two U-shaped plates 8 respectively. After the upper surface of the workpiece 9 is welded, the driving motor 4 starts to operate. At this time, the driving motor 4 will drive one of the rotating rods 3 to rotate synchronously. The rotating rod 3 will drive the connecting plate 5 to rotate synchronously. The connecting plate 5 will drive the mounting sleeve plate 6 and the moving plate 7 to rotate synchronously. The moving plate 7 will drive the U-shaped plate 8 and the workpiece 9 to rotate synchronously. At this time, the workpiece 9 can be flipped conveniently and effectively, so as to facilitate the welding equipment 15 to weld other surfaces of the workpiece 9, without manual flipping by the staff, effectively improving the welding efficiency of the workpiece 9 and the safety factor during the welding of the workpiece 9.

[0042] In order to effectively adjust the distance between the two fixing components, the adjusting assembly includes fixing plates 10 respectively arranged on the upper surfaces of the two mounting sleeve plates 6. Slide rods 34 are symmetrically arranged inside the fixing plates 10. A contact plate 35 is arranged inside the fixing plate 10. A guiding groove for the slide rod 34 to move is opened inside the contact plate 35. A plurality of contact springs 36 are sleeved on the outside of the plurality of slide rods 34. The plurality of contact springs 36 are all in contact between the contact plate 35 and the fixing plate 10. A pull ring is fixedly connected to the upper surface of the contact plate 35 through a top rod 37. Insertion plates 38 are symmetrically arranged at the bottom of the contact plate 35. Guiding grooves for the insertion plates 38 to move are opened on the contact surfaces of the fixing plate 10 and the mounting sleeve plate 6. Guiding grooves for the insertion plates 38 to move are equally spaced inside the moving plate 7. When it is necessary to adjust the distance between the two fixing components, just pull the pull ring first. At this time, the pull ring will drive the top rod 37 to move synchronously. The top rod 37 will drive the contact plate 35 to move synchronously on the outside of the slide rod 34. During the movement of the contact plate 35, the contact spring 36 will be compressed. The contact plate 35 will also drive the insertion plate 38 to move synchronously. When the insertion plate 38 disengages from the guiding groove inside the moving plate 7, then pull the moving plate 7 inside the mounting sleeve plate 6. When the moving plate 7 drives the U-shaped plate 8 to move to the required position, then release the pull ring. At this time, the contact spring 36 resets and drives the contact plate 35 to move synchronously. The contact plate 35 will drive the insertion plate 38 to move synchronously. When the insertion plate 38 is inserted into the guiding groove inside the moving plate 7, the moving plate 7 and the mounting sleeve plate 6 can be fixed. At this time, the distance between the two fixing components can be adjusted, so that the workpieces 9 can be butt-welded.

[0043] In order to effectively adsorb toxic gases into the interior of the water storage cylinder 17 for filtration treatment, the air suction assembly includes an air suction pump 24 fixedly connected to the upper surface of the L-shaped plate 12. Installation blocks 26 for installing air suction heads 27 are symmetrically arranged outside the welding device 15. The intake end of the air suction pump 24 is connected to the interiors of the two air suction heads 27 through a branch pipe 25, and the outlet end of the air suction pump 24 is connected to the interior of the water storage cylinder 17 through a branch pipe 25. During the welding process of the workpiece 9, a large amount of toxic gases will be generated. At this time, the air suction pump 24 starts to operate, and the air suction pump 24 will transmit the toxic gases to the interior of the water storage cylinder 17 through the air suction heads 27 in cooperation with the branch pipe 25, so as to effectively filter and purify the toxic gases, and further effectively protect the environment and the physical health of the staff.

[0044] In addition, in order to facilitate the staff to disassemble and replace the filter net 23, the installation assembly includes fixed frames 28 symmetrically arranged outside the exhaust pipe 22. Connecting frames 29 are symmetrically arranged on the upper surface of the filter net 23. A plug block 30 is fixedly connected to the bottom of the connecting frame 29. A guiding groove for the plug block 30 to move is opened on the upper surface of the fixed frame 28. An inner plate 39 is fixedly connected to the inside of the plug block 30. Telescopic rods 40 are fixedly connected to both sides of the outer wall of the inner plate 39. The telescopic ends of the multiple telescopic rods 40 are all fixedly connected with insertion rods 41. Connecting springs 42 are sleeved outside the multiple telescopic rods 40. The multiple connecting springs 42 all abut between the insertion rods 41 and the inner plate 39. Guiding grooves for the insertion rods 41 to move are opened on both sides of the outer walls of the plug block 30 and the fixed frame 28. When it is necessary to disassemble and replace the filter net 23, only need to press the insertion rod 41 first. At this time, the insertion rod 41 will squeeze the telescopic rods 40 and the connecting springs 42. When the insertion rod 41 disengages from the guiding grooves on both sides of the outer wall of the fixed frame 28, the plug block 30 can be separated from the fixed frame 28. At this time, the filter net 23 can be disassembled, so as to facilitate the staff to replace the filter net 23. When it is necessary to install the filter net 23, only need to insert the plug block 30 into the inside of the fixed frame 28 first. At this time, the plug block 30 will drive the insertion rod 41 to move synchronously. When the plug block 30 drives the insertion rod 41 to move into the guiding grooves on both sides of the outer wall of the fixed frame 28, the connecting spring 42 resets and drives the insertion rod 41 to move synchronously. When the insertion rod 41 is inserted into the guiding grooves on both sides of the outer wall of the fixed frame 28, the plug block 30 can be fixed to the fixed frame 28. At this time, the filter net 23 can be installed.

[0045] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser welding machine, comprising a processing table (1), characterized in that: It further includes: A support plate (2), symmetrically arranged on the upper surface of the processing table (1); A fixing component, symmetrically arranged above the processing table (1) and used for fixing the workpiece (9); A flipping component, arranged outside one of the support plates (2) and used for flipping the workpiece (9); An adjusting component, symmetrically arranged above the processing table (1) and used for adjusting the distance between the two fixing components; A horizontal mechanism (11), arranged on the upper surface of the processing table (1). An L-shaped plate (12) is arranged inside the horizontal mechanism (11). A front-back mechanism (13) is arranged at the bottom of the L-shaped plate (12). A welding device (15) is fixedly connected inside the front-back mechanism (13) through an electric push rod (14); A rear plate (16), fixedly connected to the rear end surface of the L-shaped plate (12). A water storage cylinder (17) is fixedly connected inside the rear plate (16). The bottom of the water storage cylinder (17) is communicated with a drain pipe (19) through a solenoid valve (18). An inlet cylinder (20) is communicated with the outside of the water storage cylinder (17). A sealing cover (21) is arranged outside the inlet cylinder (20). An exhaust pipe (22) is communicated with the upper surface of the water storage cylinder (17). A filter screen (23) is arranged inside the exhaust pipe (22); An air suction component, arranged on the upper surface of the L-shaped plate (12) and used for adsorbing and filtering toxic gases; An installation component, symmetrically arranged outside the exhaust pipe (22) and used for disassembling and assembling the filter screen (23).

2. A high-precision laser welding machine according to claim 1, characterized in that: The fixing component includes U-shaped plates (8) symmetrically arranged above the processing table (1). Guide grooves for the movement of connecting rods (31) are symmetrically formed on the upper surface of the U-shaped plates (8). The top ends of every two connecting rods (31) are fixedly connected with a pulling plate. The bottom ends of every two connecting rods (31) are fixedly connected with a clamping plate (32). A return spring (33) is sleeved outside each of the plurality of connecting rods (31). Each of the plurality of return springs (33) abuts between the clamping plate (32) and the U-shaped plate (8).

3. A high-precision laser welding machine according to claim 2, characterized in that: The flipping component includes a driving motor (4) fixedly connected to the outside of one of the support plates (2). Rotating rods (3) are rotatably connected to the opposite sides of the two support plates (2). The output shaft of the driving motor (4) is fixedly connected to one end of one of the rotating rods (3) through a coupling. The other ends of the two rotating rods (3) are fixedly connected with connecting plates (5). Mounting sleeve plates (6) are fixedly connected to the opposite sides of the two connecting plates (5). Movable plates (7) are arranged inside each of the two mounting sleeve plates (6). The opposite sides of the two movable plates (7) are respectively fixedly connected to the outside of the two U-shaped plates (8).

4. A high-precision laser welding machine according to claim 3, characterized in that: The adjustment assembly comprises a fixed plate (10) respectively arranged on the upper surfaces of two mounting sleeves (6); a sliding rod (34) is symmetrically arranged inside the fixed plate (10); a contact plate (35) is arranged inside the fixed plate (10); a guide groove for the sliding rod (34) to move is provided inside the contact plate (35); a plurality of contact springs (36) are sleeved outside the plurality of sliding rods (34); a plurality of contact springs (36) are contacted between the contact plate (35) and the fixed plate (10); a pull ring is fixedly connected to the upper surface of the contact plate (35) through a top rod (37); a plug plate (38) is symmetrically arranged at the bottom of the plug plate (35); a guide groove for the plug plate (38) to move is provided on the contact surface between the fixed plate (10) and the mounting sleeve (6); and guide grooves for the plug plate (38) to move are provided at equal intervals inside the movable plate (7).

5. The high-precision laser welding machine according to claim 1, characterized in that: The air suction assembly comprises an air suction pump (24) fixedly connected to the upper surface of the L-shaped plate (12); a mounting block (26) for mounting an air suction head (27) is symmetrically arranged on the outside of the welding device (15); an air inlet end of the air suction pump (24) is connected to the interior of two air suction heads (27) through a branch pipe (25); and an air outlet end of the air suction pump (24) is connected to the interior of a water storage cylinder (17) through a branch pipe (25).

6. A high-precision laser welding machine according to claim 1, characterized in that: The mounting assembly comprises a fixing frame (28) symmetrically arranged outside the exhaust pipe (22); a connecting frame (29) is symmetrically arranged on the upper surface of the filter screen (23); a plug block (30) is fixedly connected to the bottom of the connecting frame (29); a guide groove for the plug block (30) to move is provided on the upper surface of the fixing frame (28); an inner plate (39) is fixedly connected to the inside of the plug block (30); telescopic rods (40) are fixedly connected to both sides of the outer wall of the inner plate (39); a plurality of telescopic rods (40) have their telescopic ends fixedly connected to the plug rods (41); a connecting spring (42) is sleeved on the outside of the plurality of telescopic rods (40); the plurality of connecting springs (42) are in contact between the plug rod (41) and the inner plate (39); and a guide groove for the plug rod (41) to move is provided on both sides of the outer walls of the plug block (30) and the fixing frame (28).

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