Dual-module linkage four-station laser welding equipment

Abstract

This invention relates to the field of laser welding technology and discloses a dual-module linkage four-station laser welding equipment, comprising: a welding frame; a mounting platform for mounting and positioning the parts to be welded; and welding components for performing linkage multi-station welding on the positioned parts. The welding components are arranged in two sets, symmetrically distributed around the center line of the mounting platform. This dual-module linkage four-station laser welding equipment, through the configured welding components, enables synchronous multi-station welding in a dual-welding-module state. It can efficiently weld parts with array features without excessive manual intervention. After welding, the welding torch position can be quickly restored through a pressing operation, and then, by changing the rotation angle, rapid repositioning welding can continue at multiple welding positions, satisfying the requirements of rapid four-station welding in a dual-module environment. This ensures both welding quality and improves the welding efficiency of the parts.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to a dual-module linkage four-station laser welding device. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. For parts consisting of a bottom shell and a top cover, laser welding is often performed along the circumference of the parts to assemble the bottom shell and top cover.

[0003] Currently, in the laser welding process, many structural parts are arranged in a symmetrical or array-like structure. Therefore, welding equipment is needed to weld the array-like structure. Traditional methods often use manual welding and specific auxiliary tools, resulting in low efficiency during the welding process. This makes it unsuitable for welding different parts at multiple workstations, and ultimately the overall welding process is complex and costly. Therefore, a dual-module linkage four-station laser welding equipment is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a dual-module linkage four-station laser welding device, which solves the problem that existing technologies cannot achieve synchronous linkage welding across multiple stations, thus affecting welding efficiency.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dual-module linkage four-station laser welding equipment, including a welding frame; a mounting table for mounting and positioning the parts to be welded; and welding components for performing linkage multi-station welding on the positioned parts; the welding components are provided in two sets, and the two sets are symmetrically distributed about the center line of the mounting table, and the welding components include a welding mechanism, a line shifting mechanism, and a lever mechanism.

[0008] Preferably, the welding mechanism includes a laser welding gun, a gun holder is mounted on the laser welding gun, the gun holder is disposed on a line moving mechanism, a movable frame is connected to the gun holder, a sliding rod is connected to the movable frame, and a compression spring is sleeved on the sliding rod.

[0009] Preferably, the line-shifting mechanism includes a worm gear, a worm is rotatably connected to the bottom of the mounting platform, a servo motor is installed inside the welding frame, the output end of the servo motor is connected to the worm, the worm gear meshes with the worm, a shaft is connected to the center of the worm gear, a second shaft, a third shaft, and a fourth shaft are provided on the lever mechanism, pulleys are connected to the first, second, third, and fourth shafts, and multiple pulleys are interconnected by belts, a drive gear is connected to the third shaft, and teeth are provided at the bottom of the moving frame, and the teeth mesh with the drive gear.

[0010] Preferably, the lever mechanism includes a rotating frame, a control frame is rotatably connected to the middle of the rotating frame, and an abutment rod is connected to the rotating frame.

[0011] Preferably, the movable frame is slidably connected to the rotating frame, and the first, second, third and fourth shafts are all rotatably connected to the control frame. A tension spring is connected to the rotating frame, and the bottom of the tension spring is connected to the control frame. When the rotating frame rotates counterclockwise, the teeth on the movable frame and the drive gear disengage.

[0012] Preferably, the bottom of the mounting platform is connected to a column, the bottom of the column is connected to a fixed platform, a small ring is rotatably connected to the axis of the fixed platform, the control frame is rotatably connected to the small ring through a connector, two arc grooves are formed on the fixed platform, a guide rod is slidably connected inside the arc groove, a ring plate is connected to the top of the guide rod, a rotating plate is slidably connected to the bottom of the guide rod, a fixed plate is rotatably connected to the rotating plate, and the fixed plate is disposed inside the welding frame.

[0013] Preferably, the bottom of the fixing plate has two slots at the arc groove position, a rigid spring is sleeved on the guide rod, one end of the rigid spring abuts against the rotating plate, and the other end of the rigid spring is connected to a locking post. The locking post is connected to the guide rod and is engaged with the slots.

[0014] Preferably, the ring plate is connected to a ring frame by a connecting rod, the surface of the ring frame abuts against the bottom of the control frame, and the elastic force of the rigid spring is greater than that of the tension spring.

[0015] Preferably, the center angle of the two slots is 90 degrees, and the structure of the rotating frame is "E" shaped.

[0016] Preferably, a fan wheel is also connected to the shaft three, a suction frame is provided on the control frame, the fan wheel is rotatably connected inside the control frame, a suction port is opened at one end of the control frame, and a discharge port is opened at the other end of the control frame.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention provides a dual-module linkage four-station laser welding device, which has the following beneficial effects:

[0019] 1. This dual-module linkage four-station laser welding equipment can achieve multi-station synchronous welding in dual welding module state by setting the welding parts. It can efficiently weld some parts with array features without much manual intervention. After welding, the position of the welding gun can be quickly restored by pressing, and then the welding position can be quickly changed by changing the rotation angle. It meets the requirements of rapid four-station welding in dual-module environment, which can not only ensure welding quality but also improve the welding efficiency of parts.

[0020] 2. This dual-module linkage four-station laser welding equipment can generate suction force through the set impeller, thereby sucking out the fumes generated during welding, ensuring that the operator can more clearly see the quality of the weld and whether there is any deviation in position while wearing a mask. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a dual-module linkage four-station laser welding equipment proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the connection position structure of the welded parts in a dual-module linkage four-station laser welding equipment proposed in this invention;

[0023] Figure 3 This is a schematic diagram showing the positions of the welding mechanism and lever mechanism of a dual-module linkage four-station laser welding equipment proposed in this invention.

[0024] Figure 4 This is a schematic diagram of the lever mechanism of a dual-module linkage four-station laser welding equipment proposed in this invention;

[0025] Figure 5 This is a schematic diagram showing the positions of the arc groove and the slot in a dual-module linkage four-station laser welding equipment proposed in this invention;

[0026] Figure 6 This is a schematic diagram of the connection structure between the rotating frame and the control frame of a dual-module linkage four-station laser welding equipment proposed in this invention.

[0027] Figure 7 This is a schematic diagram of the impeller connection position structure of a dual-module linkage four-station laser welding equipment proposed in this invention.

[0028] In the diagram: 1. Welding frame; 2. Mounting platform; 21. Column; 22. Fixing platform; 23. Fixing plate; 3. Welding component; 31. Welding mechanism; 311. Laser welding gun; 312. Gun holder; 313. Compression spring; 314. Moving frame; 315. Sliding rod; 32. Line shifting mechanism; 321. Worm gear; 322. Shaft 1; 323. Shaft 2; 324. Drive gear; 325. Shaft 3; 326. Shaft 4; 33. Lever mechanism; 331. Rotating frame; 332. Abutment rod; 333. Tension spring; 334. Control frame; 335. Ring frame; 336. Ring plate; 337. Guide rod; 338. Rotating plate; 339. Rigid spring; 340. Locking post; 341. Locking slot; 342. Arc groove; 343. Suction frame; 344. Fan wheel; 4. Servo motor; 5. Worm gear. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 A dual-module linkage four-station laser welding equipment includes a welding frame 1; a mounting platform 2 for mounting and positioning the parts to be welded; and a welding component 3 for performing linkage multi-station welding on the positioned parts. The welding component 3 is provided in two sets, and the two sets are symmetrically distributed about the center line of the mounting platform 2. The welding component 3 includes a welding mechanism 31, a line shifting mechanism 32, and a lever mechanism 33.

[0031] In this embodiment, the welding mechanism 31 includes a laser welding torch 311, a torch holder 312 mounted on the laser welding torch 311, the torch holder 312 being disposed on the line-shifting mechanism 32, a movable frame 314 connected to the torch holder 312, a sliding rod 315 connected to the movable frame 314, and a compression spring 313 sleeved on the sliding rod 315. The laser welding torch 311 is fixedly mounted via the torch holder 312 and is integrally disposed on the line-shifting mechanism 32, enabling linear movement in the horizontal direction. A movable frame 314 is fixedly connected to the rear or upper side of the torch holder 312, and the movable frame 314 is used to transmit driving force and realize the lateral displacement of the welding torch. At least one sliding rod 315 is also connected to the movable frame 314, and the sliding rod 315 is arranged along the moving direction to guide the smooth sliding of the movable frame 314. A compression spring 313 is sleeved on the outside of the sliding rod 315. One end of the compression spring 313 abuts against the moving frame 314, and the other end abuts against the fixed structure, providing a certain preload under normal conditions. When the moving frame 314 is driven forward, the compression spring 313 is compressed and stores elastic potential energy. When the drive is released, the restoring force of the compression spring 313 can push the moving frame 314 to automatically return the gun holder 312 and the laser welding gun 311 to the initial position, thereby realizing the rapid reset of the welding gun and facilitating the welding operation of the next station.

[0032] Furthermore, the line shifting mechanism 32 includes a worm gear 321, a worm 5 rotatably connected to the bottom of the mounting platform 2, a servo motor 4 installed inside the welding frame 1, the output end of the servo motor 4 connected to the worm 5, the worm gear 321 meshing with the worm 5 for transmission, a shaft 322 connected to the center of the worm gear 321, a lever mechanism 33 having shafts 323, 325, and 326, each connected to a pulley, and the multiple pulleys are interconnected via belts, a drive gear 324 connected to shaft 325, and a toothed surface on the bottom of the moving frame 314 meshing with the drive gear 324. Several teeth are also present on the bottom of the moving frame 314, meshing with the drive gear 324. When the servo motor 4 drives the worm gear 321 to rotate, the shaft 322 drives the shaft 325 to rotate via the belt, which in turn causes the drive gear 324 to rotate. Through the meshing action with the bottom teeth of the moving frame 314, the moving frame 314 is pushed to move linearly along the sliding rod 315, which ultimately drives the laser welding gun 311 to achieve precise transverse welding feed.

[0033] Furthermore, the lever mechanism 33 includes a rotating frame 331, with a control frame 334 rotatably connected to the middle of the rotating frame 331. An abutment rod 332 is connected to the rotating frame 331. A movable frame 314 is slidably connected to the rotating frame 331. Shafts 322, 323, 325, and 326 are all rotatably connected to the control frame 334. A tension spring 333 is connected to the rotating frame 331, with its bottom connected to the control frame 334. When the rotating frame 331 rotates counterclockwise, it disengages the teeth on the movable frame 314 from the drive gear 324. The movable frame 314 and the rotating frame 331 are slidably connected, for example, through a groove and a slider, allowing the movable frame 314 to slide linearly relative to the rotating frame 331. The aforementioned shafts 322, 323, 325, and 326 are all rotatably connected to the control frame 334 via bearings or bushings, ensuring that each shaft maintains a stable relative position during transmission. A tension spring 333 is also connected to the rotating frame 331, with its bottom or one end fixedly connected to the control frame 334. Under normal conditions, the tension spring 333 is in a stretched state, providing a continuous counter-clockwise tension or torque to the rotating frame 331, causing it to tend to rotate counter-clockwise. When the rotating frame 331 rotates counter-clockwise under the action of an external force, overcoming the tension of the tension spring 333, it will cause the slidingly connected movable frame 314 to move or tilt. At this time, the meshing relationship between the teeth at the bottom of the movable frame 314 and the drive gear 324 is disrupted, meaning the teeth disengage from the drive gear 324. After disengagement, the rotation of the drive gear 324 can no longer drive the moving frame 314 to move. At the same time, the moving frame 314 can be freely reset under the restoring force of the compression spring 313, thereby realizing the rapid retraction of the welding torch and the function of switching workstations.

[0034] In addition, a column 21 is connected to the bottom of the mounting platform 2, and a fixed platform 22 is connected to the bottom of the column 21. A small ring is rotatably connected to the axis of the fixed platform 22. The control frame 334 is rotatably connected to the small ring through a connector. Two arc grooves 342 are formed on the fixed platform 22. A guide rod 337 is slidably connected inside the arc grooves 342. A ring plate 336 is connected to the top of the guide rod 337. A rotating plate 338 is slidably connected to the bottom of the guide rod 337. A fixed plate 23 is rotatably connected to the rotating plate 338. The fixed plate 23 is located inside the welding frame 1. The control frame 334 is rotatably connected to the small ring through a connector such as a connecting rod or a hinge seat, so that the control frame 334 can rotate around the axis of the fixed platform 22 and can also swing at a certain angle relative to the small ring. The fixed platform 22 has two arc grooves 342, which are symmetrically distributed or arranged at specific angles such as 90° intervals. Each arc groove 342 has a guide rod 337 slidably connected inside, which can slide along the trajectory of the arc groove 342. A ring plate 336 is fixedly connected to the top of the guide rod 337, located above the fixed platform 22, for transmitting pressing or rotating operations. A rotating plate 338 is slidably connected to the bottom of the guide rod 337, which can slide up and down relative to the guide rod 337 and also rotate around the axis of the guide rod 337. When the operator presses or rotates the ring plate 336, the guide rod 337 slides along the arc groove 342, causing the rotating plate 338 to rotate relative to the fixed platform 23. Simultaneously, the guide rod 337 can move up and down, thereby realizing the lifting and rotating switching of the control frame 334, providing a position conversion function for four-station welding. Furthermore, when the worm gear 321 rotates around the center of the mounting platform 2, that is, when the center of the worm 5 rotates, it controls the worm gear 321 to mesh at another angular position of the worm 5 without affecting the overall meshing transmission.

[0035] In addition, two slots 341 are formed at the bottom of the fixed plate 23 at the position of the arc groove 342. A rigid spring 339 is sleeved on the guide rod 337. One end of the rigid spring 339 abuts against the rotating plate 338, and the other end of the rigid spring 339 is connected to a locking post 340. The locking post 340 is connected to the guide rod 337 and is engaged with the slots 341. Two slots 341 are formed at the corresponding positions of the arc groove 342. These two slots 341 are distributed circumferentially along the fixed plate 23, and their central angles are preferably spaced 90 degrees apart to achieve precise positioning after rotation. The openings of the slots 341 face downward or to the lower side to facilitate engagement with the locking post 340. The upper end of one end of the rigid spring 339 abuts against the lower surface of the rotating plate 338, and the other end is connected to a locking post 340. The locking post 340 is also fixedly connected to the guide rod 337 and can move up and down with the guide rod 337. The rigid spring 339 provides an upward force under compression, pushing the rotating plate 338 and guide rod 337 upward as a whole, thus ensuring that the locking pin 340 always tends to be pressed into the locking groove 341. Under normal conditions, the force of the rigid spring 339 pushes the locking pin 340 into the locking groove 341, achieving circumferential locking and preventing accidental rotation of the fixed platform 22 and the upper mounting platform 2. When the operator presses down on the ring plate 336, the guide rod 337 drives the locking pin 340 to move downward against the force of the rigid spring 339, causing the locking pin 340 to disengage from the locking groove 341. At this time, the fixed platform 22 can rotate freely. After rotating to the next position, such as 90°, the ring plate 336 is released, the rigid spring 339 returns to its original position, and the locking pin 340 re-engages into another locking groove 341, completing the position switching and positioning locking. The elastic force of the rigid spring 339 is greater than that of the tension spring 333, so as to ensure that when the ring plate 336 is released, the locking post 340 locks with the locking groove 341 first, and at the same time, the control frame 334 is pushed upward by the ring frame 335, so that the laser welding gun 311 can stably enter the welding working position.

[0036] It is worth noting that a ring frame 335 is connected to the ring plate 336 via a connecting rod. The surface of the ring frame 335 abuts against the bottom of the control frame 334, and the elastic force of the rigid spring 339 is greater than that of the tension spring 333. The central angle of the two slots 341 is 90 degrees, and the structure of the rotating frame 331 is "E" shaped.

[0037] It is worth mentioning that a fan wheel 344 is also connected to shaft 325, and a suction holder 343 is installed on control frame 334. The fan wheel 344 is rotatably connected inside control frame 334. One end of control frame 334 has a suction port, and the other end has an exhaust port. The fan wheel 344 rotates synchronously with shaft 325. When servo motor 4 drives shaft 325 to rotate, the fan wheel 344 rotates at high speed, generating centrifugal or axial airflow. The suction holder 343 serves as the housing or support for the airflow channel, used to fix and accommodate the fan wheel 344 and related airflow paths. The fan wheel 344 is rotatably connected inside control frame 334 via bearings or a rotating shaft, ensuring that the fan wheel 344 rotates stably inside control frame 334 without interfering with other components. When shaft 325 drives the fan wheel 344 to rotate, a negative pressure is formed at the suction port, drawing welding fumes into control frame 334. After being pressurized by the rotation of fan wheel 344, the fumes are discharged from the exhaust port.

[0038] The working principle is as follows: First, during the welding process, the operator needs to press the ring frame 335, then install the part to be welded on the mounting table 2, and use a positioning tool to position the part. Then, the ring frame 335 is released. Through the elastic extension of the rigid spring 339, the locking pin 340 engages with the locking slot 341, while simultaneously controlling the synchronous upward movement of the ring plate 336 and the ring frame 335. Since the ring frame 335 abuts against the control frame 334, the control frame 334 will be indirectly lifted and rotated, and then directly abut against the bottom of the mounting table 2 for limiting... In the initial stage, the abutment rod 332 is in a raised state, protruding from the plane of the control frame 334. Therefore, when the control frame 334 abuts and positions itself against the bottom of the mounting platform 2, it will also drive the abutment rod 332 and the rotating frame 331 to rotate clockwise by a small angle. After that, the clockwise rotation of the rotating frame 331 will drive the laser welding gun 311 on the gun holder 312 to calibrate its position and abut against the welding position. Of course, the gun holder 312 and the laser welding gun 311 are also equipped with adjustment devices to continue to adjust the standard position of the laser welding gun 311. Next, controlling the rotation of servo motor 4 will drive the rotation of worm gear 5, which in turn drives the rotation of worm wheel 321. Worm wheel 321 will then drive shaft 322 to rotate. Therefore, the pulley on shaft 322 will act as a drive wheel, driving the belt to rotate, which in turn drives shaft 325 to rotate. This causes drive gear 324 connected to shaft 325 to rotate. Under the initial small counter-clockwise rotation of rotating frame 331, the teeth on moving frame 314 will mesh with drive gear 324. Therefore, the rotation of drive gear 324 will drive moving frame 314 laterally. Moving frame 314 will then drive the laser welding gun 311 on gun holder 312 to move towards center, thus achieving the welding operation on the parts. After moving to the required welding position, the operator presses ring frame 335 again. After the control frame 334 loses its resistance, it will rotate counterclockwise under gravity. At this time, the tension spring 333 will contract to control the counterclockwise rotation of the rotating frame 331, which will automatically lift the laser welding gun 311. At this time, the teeth under the moving frame 314 will disengage from the drive gear 324. Since the moving frame 314 is no longer restrained, it will be subjected to the extension force of the compression spring 313, which will provide the restoring force of the moving frame 314. Therefore, the gun frame 312 will instantly spring back to the dot position. Then, the operator can press the ring frame 335 and rotate it to change its position, thereby controlling the entire welding mechanism 31 to change its position. After that, the locking pin 340 will rotate 90 degrees and engage with another locking slot 341. Then, the ring frame 335 will be released, and the extension force will be used to continue welding on another set of welding positions, realizing four-station welding under the condition of dual-module welding mechanism 31.Of course, the position and angle of the slot 341 can also be controlled according to the welding position of the parts, or multiple slots 341 can be set to cope with the welding of parts at different angles, thereby improving the applicability of the equipment.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A dual-module linkage four-station laser welding equipment, characterized in that, include: Welding frame (1); Mounting platform (2) is used to mount and position the parts to be welded; Welding component (3) is used for multi-station welding of positioned parts; The welding component (3) is provided in two sets, and the two sets of welding components (3) are symmetrically distributed about the center line of the mounting platform (2); The welded component (3) includes a welding mechanism (31), a line shifting mechanism (32), and a lever mechanism (33). The welding mechanism (31) includes a laser welding gun (311), a gun holder (312) is mounted on the laser welding gun (311), the gun holder (312) is set on the line moving mechanism (32), a moving frame (314) is connected to the gun holder (312), a sliding rod (315) is connected to the moving frame (314), and a compression spring (313) is sleeved on the sliding rod (315).

2. The dual-module linkage four-station laser welding equipment according to claim 1, characterized in that: The line shifting mechanism (32) includes a worm gear (321), and a worm (5) is rotatably connected to the bottom of the mounting platform (2). A servo motor (4) is installed inside the welding frame (1), and the output end of the servo motor (4) is connected to the worm (5). The worm gear (321) meshes with the worm (5) for transmission. A shaft (322) is connected to the center of the worm gear (321). A shaft (323), a shaft (325), and a shaft (326) are provided on the lever mechanism (33). A pulley is connected to each of the shafts (322), (323), (325), and (326), and multiple pulleys are connected to each other through belt transmission. A drive gear (324) is connected to the shaft (325). The bottom of the moving frame (314) is provided with teeth, and the teeth mesh with the drive gear (324).

3. The dual-module linkage four-station laser welding equipment according to claim 2, characterized in that: The lever mechanism (33) includes a rotating frame (331), a control frame (334) is rotatably connected to the middle of the rotating frame (331), and an abutment rod (332) is connected to the rotating frame (331).

4. The dual-module linkage four-station laser welding equipment according to claim 3, characterized in that: The movable frame (314) is slidably connected to the rotating frame (331). The first shaft (322), the second shaft (323), the third shaft (325), and the fourth shaft (326) are all rotatably connected to the control frame (334). A tension spring (333) is connected to the rotating frame (331). The bottom of the tension spring (333) is connected to the control frame (334). When the rotating frame (331) rotates counterclockwise, the teeth on the movable frame (314) and the drive gear (324) disengage.

5. The dual-module linkage four-station laser welding equipment according to claim 4, characterized in that: The bottom of the mounting platform (2) is connected to a column (21), the bottom of the column (21) is connected to a fixed platform (22), a small ring is rotatably connected to the axis of the fixed platform (22), the control frame (334) is rotatably connected to the small ring through a connector, two arc grooves (342) are opened on the fixed platform (22), a guide rod (337) is slidably connected inside the arc groove (342), a ring plate (336) is connected to the top of the guide rod (337), a rotating plate (338) is slidably connected to the bottom of the guide rod (337), a fixed plate (23) is rotatably connected to the rotating plate (338), and the fixed plate (23) is set inside the welding frame (1).

6. The dual-module linkage four-station laser welding equipment according to claim 5, characterized in that: The bottom of the fixing plate (23) has two slots (341) at the position of the arc groove (342). A rigid spring (339) is sleeved on the guide rod (337). One end of the rigid spring (339) abuts against the rotating plate (338). The other end of the rigid spring (339) is connected to a locking post (340). The locking post (340) is connected to the guide rod (337). The locking post (340) is engaged with the slots (341).

7. The dual-module linkage four-station laser welding equipment according to claim 5, characterized in that: The ring plate (336) is connected to the ring frame (335) by a connecting rod. The surface of the ring frame (335) abuts against the bottom of the control frame (334). The elastic force of the rigid spring (339) is greater than that of the tension spring (333).

8. The dual-module linkage four-station laser welding equipment according to claim 6, characterized in that: The center angle of the two slots (341) is 90 degrees, and the structure of the rotating frame (331) is "E" shaped.

9. A dual-module linkage four-station laser welding equipment according to claim 8, characterized in that: A fan wheel (344) is also connected to the shaft three (325). A suction frame (343) is provided on the control frame (334). The fan wheel (344) is rotatably connected inside the control frame (334). A suction port is opened at one end of the control frame (334), and a discharge port is opened at the other end of the control frame (334).

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