Optical fiber laser welding equipment

Abstract

The invention belongs to the technical field of optical fiber laser welding, and particularly relates to optical fiber laser welding equipment which comprises a rack, a conveying mechanism used for conveying a battery module is arranged in the rack, an XYZ-axis moving mechanism is installed on one side of the rack, a laser welding device is installed on the XYZ-axis moving mechanism, and a conveying belt is connected to one side of the end of the rack. The conveying mechanism comprises two sets of transmission shafts, the two sets of transmission shafts are rotationally installed in the rack, chain wheels are installed on the two sets of transmission shafts, the two sets of chain wheels are meshed with a chain, a plurality of sets of shifting forks used for containing battery modules are arranged around the chain, and one ends of the shifting forks are fixedly connected with the chain. According to the battery module welding device, feeding, welding and discharging of the battery module can be conducted at the same time, the automation rate of the device is increased, meanwhile, the battery module can be continuously welded, and the welding efficiency of the battery module is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber laser welding, in particular to an optical fiber laser welding device. Background Art

[0002] Fiber laser welding machine is a device that uses a high-energy density laser beam generated by a fiber laser for welding. It has the advantages of high efficiency, precision, and energy saving. It is widely used in many fields such as automobile manufacturing, aerospace, and electronic manufacturing. Among them, the battery module welding in automobile manufacturing is achieved through fiber laser welding machine, which significantly improves the production efficiency and quality of battery modules.

[0003] The patent with publication number CN118417736A discloses a fiber laser welding device, including a support frame, a welding fixing platform is arranged inside the support frame, an L-shaped support plate is fixedly arranged on the rear side of the top of the support frame, a laser welder is installed on the top of the L-shaped support plate, a welding head is arranged on the top of the welding fixing platform, an XY axis moving mechanism is arranged on the welding head, the XY axis moving mechanism is fixedly installed on the lower end surface of a transparent protective plate, a hydraulic push rod is fixedly connected to the upper end surface of the transparent protective plate, a transparent protective frame with an outer side coated with an anti-radiation coating is movably installed on the bottom of the transparent protective plate, and the combination of the transparent protective plate and the transparent protective frame in this scheme plays a protective role, preventing welding sparks from injuring the eyes of the staff, and improving the safety of welding. Secondly, by arranging a blowing and dust suction mechanism, the residue and dust at the welding site can be cleaned and collected, making the cleaning of the residue and dust more convenient.

[0004] In the above scheme, only one group of battery components can be placed on the welding fixing table at a time. Therefore, after the battery components are welded, the welded battery components need to be removed first, and then the next group of battery components to be welded can be placed. The removal and placement of the battery components not only wastes a lot of time, but also makes it impossible to weld the battery components continuously, thereby reducing the welding efficiency of the battery components. For this reason, the present invention provides a fiber laser welding device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved. The technical solution adopted by the present invention to solve its technical problem is: the optical fiber laser welding equipment described in the present invention includes a frame, a conveying mechanism for conveying battery modules is arranged in the frame, an XYZ axis moving mechanism is installed on one side of the frame, a laser welder is installed on the XYZ axis moving mechanism, a conveyor belt is connected to one side of the end of the frame, the conveying mechanism includes two groups of transmission shafts, the two groups of transmission shafts are rotatably installed in the frame, sprockets are installed on the two groups of transmission shafts, the two groups of sprockets mesh with chains, and several groups of forks for placing battery modules are arranged around the chain, one end of the fork is fixedly connected to the chain, and a support plate for holding the battery module is arranged in the several groups of forks, one side of the support plate is fixedly connected to the inner wall of the frame, one end of the support plate is provided with a material discharge channel, and one side of the end of the frame is provided with a material discharge port, and the material discharge port is located between the material discharge channel and the conveyor belt; By making several groups of shift forks perform circular motion, the loading, welding and unloading of battery modules can be carried out simultaneously, which not only improves the automation rate of the device, but also enables the battery modules to be continuously welded, thereby improving the welding efficiency of the battery modules.

[0006] Preferably, a protective cover is provided above the laser welder, and a ventilation pipe is connected above the protective cover.

[0007] The protective cover can prevent sparks and metal debris generated by welding from damaging workers' eyes. Secondly, the dust collector allows the ventilation duct to extract the metal debris floating in the protective cover to clean the metal debris.

[0008] Preferably, a correction frame for limiting the position of the welding piece is provided on the shift fork, the correction frame comprises a frame body, the frame body is located on the shift fork, a plurality of placement slots for placing the welding piece are provided on the frame body, four groups of guide pillars are respectively inserted into the four corners of the frame body, the guide pillars are fixedly installed on the shift fork, the upper end of the receiving rod is fixedly connected to the frame body, a spring sleeved on the receiving rod, a pulley rotatably installed at the lower end of the receiving rod, a countersunk hole is provided on the shift fork, the receiving rod and the spring are both located in the countersunk hole, the receiving rod is slidably connected to the countersunk hole, the lower end of the spring is fixedly connected to the inner wall of the countersunk hole, the upper end of the spring is fixedly connected to the shift fork, a receiving ring is provided between the two groups of transmission shafts, the receiving ring is rotatably connected to the transmission shaft, the pulley is rollingly connected to the outer ring of the receiving ring, an avoidance groove is provided on the outer ring of the receiving ring, and a first inclined surface for pushing the pulley is provided at one end of the avoidance groove; The setting of the correction frame prevents the welding piece from being offset, thereby improving the welding yield and production quality of the welding piece.

[0009] Preferably, a movable rod is movably inserted on the frame, one end of the movable rod is against an elastic ring, the elastic ring is located in the frame, a roller is rotatably installed on the other end of the movable rod, a plurality of groups of connecting rods are hinged on the movable rod, a guide rod is hinged on one end of the connecting rod, a correction piece for correcting the welding piece is fixedly connected to one end of the guide rod, the correction piece is located in the placement groove, and the correction piece is slidably connected to the placement groove, a baffle is provided on the other side of the frame, the roller is rotatably connected to the baffle, a second inclined surface for pushing the roller is provided at one end of the baffle, a plurality of groups of guide holes are opened on the frame, and a plurality of groups of guide rods are respectively slidably connected to the plurality of groups of guide holes; The setting of the correction piece makes it more convenient for the staff to place the welding piece, and at the same time it can correct the position of the welding piece to ensure the accuracy of the welding position of the welding piece.

[0010] The beneficial effects of the present invention are as follows: 1. By making several groups of shift forks perform circular motion, the loading, welding and unloading of the battery module can be carried out simultaneously, which not only improves the automation rate of the device, but also enables the battery module to be continuously welded, thereby improving the welding efficiency of the battery module.

[0011] 2. When the shift fork is located at the discharge position, the pulley included in the correction frame on the shift fork is located in the avoidance groove, and the lower end surface of the frame fits the upper end surface of the shift fork. At this time, after the battery module is placed in the shift fork, the welding pieces can be placed one by one in the placement grooves on the frame. The welding pieces are completely matched with the placement grooves. Under the limiting effect of the placement grooves, the welding pieces cannot be offset during the movement, thereby improving the welding yield and production quality of the welding pieces.

[0012] 3. The diameter of the placement groove is designed to be larger than the welding piece. When the shift fork is located at the discharge position, the accommodation volume generated by the combination of the correction piece and the placement groove is larger than the volume of the welding piece, so that the staff can easily place the welding piece into the placement groove. When the battery module and the welding piece move toward the bottom of the laser welder, the roller is squeezed and pushed by the second inclined surface, so that the movable rod moves toward the elastic ring and compresses the elastic ring. At the same time, the movable rod drives the connecting rod, so that the connecting rod pushes the guide rod to slide along the guide hole, and the guide rod pushes the correction piece to move along the placement groove toward the welding piece, so that the accommodation volume generated by the combination of the correction piece and the placement groove becomes smaller, and the correction piece will be squeezed onto the welding piece to realize the correction of the position of the welding piece. The setting of the correction piece makes it more convenient for the staff to place the welding piece, and at the same time can correct the position of the welding piece to ensure the accuracy of the welding position of the welding piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a partial schematic diagram of the structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the cross-section of the frame, the transmission mechanism, the XYZ axis moving mechanism, and the laser welder assembly of the present invention.

[0016] Figure 3 It is a schematic diagram of the assembly of the frame, the transmission mechanism, the XYZ axis moving mechanism, the laser welder, the protective cover and the ventilation pipe of the present invention.

[0017] Figure 4 It is a schematic diagram of the combination of the shift fork, correction frame, battery module and welding sheet of the present invention. Figure 5 It is a cross-sectional schematic diagram of the combination of the shift fork, the correction frame and the battery module of the present invention.

[0018] Figure 6 The present invention is a schematic diagram of a cross-section of a frame, a transmission shaft, a shift fork, a correction frame, and a laser welder.

[0019] Figure 7 It is a schematic diagram of the combination of the receiving ring, the shift fork and the correction frame of the present invention.

[0020] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0021] Fig. 9 It is a schematic cross-sectional view of the frame of the present invention.

[0022] Fig.10 It is a schematic diagram of the frame assembly of the present invention in cross section.

[0023] Fig.11 It is a schematic diagram of the combination of the frame, shift fork, correction frame and laser welder of the present invention. Fig.12 It is a schematic diagram of the overall structure of the present invention.

[0024] In the figure: 1, frame; 101, feed opening; 102, support plate; 103, feed channel; 104, receiving ring; 41, avoidance groove; 42, first inclined plane; 105, baffle; 51, second inclined plane; 2, transmission mechanism; 3, XYZ axis moving mechanism; 4, laser welder; 5, conveyor belt; 6, battery module; 7, welding sheet; 8, protective cover; 9, ventilation pipe; 201, transmission shaft; 202, Sprocket; 203, chain; 204, shift fork; 2041, countersunk hole; 205, correction frame; 2051, frame; 2052, guide column; 2053, placement groove; 2054, receiving rod; 2055, spring; 2056, pulley; 511, movable rod; 512, elastic ring; 513, connecting rod; 514, guide rod; 515, correction piece; 516, roller; 517, guide hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] Embodiment 1, as Figure 1 and Figure 2 As shown, a fiber laser welding device according to an embodiment of the present invention comprises a frame 1, a conveying mechanism 2 for conveying a battery module 6 is arranged in the frame 1, an XYZ axis moving mechanism 3 is installed on one side of the frame 1, a laser welder 4 is installed on the XYZ axis moving mechanism 3, a conveyor belt 5 is connected to one end of the frame 1, the conveying mechanism 2 comprises two sets of transmission shafts 201, the two sets of transmission shafts 201 are rotatably installed in the frame 1, sprockets 202 are installed on the two sets of transmission shafts 201, and the two sets of The sprocket 202 engages with the chain 203, and several groups of forks 204 for placing the battery module 6 are arranged around the chain 203, one end of the fork 204 is fixedly connected to the chain 203, and several groups of forks 204 are provided with a support plate 102 for holding the battery module 6, one side of the support plate 102 is fixedly connected to the inner wall of the frame 1, and one end of the support plate 102 is provided with a discharge channel 103, and one side of the end of the frame 1 is provided with a discharge port 101, and the discharge port 101 is located between the discharge channel 103 and the conveyor belt 5.

[0027] Specifically, the XYZ axis moving mechanism 3 is composed of three sets of ball screw modules, so that the laser welder 4 can move along the XYZ axis direction. Figure 1 The middle arrow indicates the discharge position. When the welding sheet 7 needs to be welded to the battery module 6, the battery module 6 is pushed from the discharge position into a group of forks 204, and the battery module 6 is located on the support plate 102. Then the welding sheet 7 is placed on the battery module 6, and then a group of transmission shafts 201 are driven by a motor to rotate. The transmission shaft 201 drives the sprocket 202 to rotate, so that several groups of forks 204 make a circular motion with the chain 203. Figure 2The direction indicated by the middle arrow is the circular motion direction, so that the battery module 6 together with the welding piece 7 is carried to the bottom of the laser welder 4, and the motion is paused. At this time, the welding pieces 7 on the battery module 6 are welded one by one by the laser welder 4, and during the welding process, the next group of battery modules 6 can be pushed from the discharge position into the next group of forks 204. After the welding of the battery modules 6 is completed, several groups of forks 204 are driven to make circular motions, so that the next group of battery modules 6 moves to the bottom of the laser welder 4, and the welded battery modules 6 move to the bottom The battery module 6 is placed above the material channel 103, and falls into the material channel 103. The battery module 6 passes through the material port 101 along the material channel 103 and slides onto the conveyor belt 5. The battery module 6 is conveyed to the next process by the conveyor belt 5, and the above operation is repeated in a cycle. Compared with the prior art, by making several groups of shift forks 204 move in a circle, the loading, welding and unloading of the battery module 6 can be carried out simultaneously, which not only improves the automation rate of the device, but also enables the battery module 6 to be continuously welded, thereby improving the welding efficiency of the battery module 6.

[0028] like Figure 3 As shown, a protective cover 8 is arranged above the laser welder 4, and a ventilation pipe 9 is connected above the protective cover 8.

[0029] Specifically, the protective cover 8 is made of transparent plastic, and the ventilation pipe 9 is connected to an external dust collector. When the laser welder 4 welds the battery module 6, the protective cover 8 can prevent sparks and metal debris generated by welding from damaging the workers' eyes. Secondly, the ventilation pipe 9 is used through the dust collector to extract the metal debris floating in the protective cover 8 to clean the metal debris.

[0030] like Figures 4 to 8As shown, a correction frame 205 for limiting the position of the welding piece 7 is provided on the fork 204, and the correction frame 205 includes a frame body 2051, the frame body 2051 is located on the fork 204, and a plurality of placement grooves 2053 for placing the welding piece 7 are provided on the frame body 2051, and four groups of guide pillars 2052 are respectively inserted into the four corners of the frame body 2051, and the guide pillars 2052 are fixedly installed on the fork 204, and the upper end of the receiving rod 2054 is fixedly connected to the frame body 2051, and a spring 2055 is sleeved on the receiving rod 2054, and a pulley 2056 is rotatably installed at the lower end of the receiving rod 2054. The countersunk hole 2041, the receiving rod 2054 and the spring 2055 are all located in the countersunk hole 2041, the receiving rod 2054 is slidably connected to the countersunk hole 2041, the lower end of the spring 2055 is fixedly connected to the inner wall of the countersunk hole 2041, the upper end of the spring 2055 is fixedly connected to the shift fork 204, and a receiving ring 104 is arranged between the two sets of transmission shafts 201, the receiving ring 104 is rotatably connected to the transmission shaft 201, and the pulley 2056 is rollingly connected to the outer ring of the receiving ring 104, and an avoidance groove 41 is opened on the outer ring of the receiving ring 104, and a first inclined surface 42 for pushing the pulley 2056 is arranged at one end of the avoidance groove 41.

[0031] Specifically, when the battery module 6 is moving toward the bottom of the laser welder 4, the welding piece 7 placed on the battery module 6 is not fixed, so the welding piece 7 is prone to deviation, which causes the welding position of the welding piece 7 to deviate, thereby reducing the product quality. When the fork 204 is located at the discharge position, the pulley 2056 included in the correction frame 205 on the fork 204 is located in the avoidance groove 41, and the lower end surface of the frame 2051 fits the upper end surface of the fork 204. At this time, after the battery module 6 is placed in the fork 204, the welding pieces 7 can be placed one by one in the placement groove 2053 on the frame 2051, and the welding pieces 7 are completely matched with the placement groove 2053. Under the limiting effect of the placement groove 2053, the welding piece 7 cannot be deviated during the movement, and the pulley 2056 is moved along the The battery module 6 rolls along the avoidance groove 41, and when the battery module 6 moves toward the discharge channel 103, the pulley 2056 will be squeezed and pushed by the first inclined surface 42, so that the receiving rod 2054 drives the frame 2051 to move upward along the guide column 2052, and the frame 2051 stretches the spring 2055 until the pulley 2056 is separated from the avoidance groove 41, and the welding piece 7 is separated from the placement groove 2053, so that the battery module 6 can fall smoothly into the discharge channel 103. When the fork 204 returns to the discharge position again, the pulley 2056 rolls into the avoidance groove 41. Under the action of the rebound force of the spring 2055, the lower end surface of the frame 2051 is again attached to the upper end surface of the fork 204. The setting of the correction frame 205 avoids the deviation of the welding piece 7, thereby improving the welding yield and production quality of the welding piece 7.

[0032] Embodiment 2, as Figures 9 to 12As shown, compared with Example 1, another embodiment of the present invention is: a movable rod 511 is movably inserted on the frame 2051, one end of the movable rod 511 is against the elastic ring 512, the elastic ring 512 is located in the frame 2051, and the other end of the movable rod 511 is rotatably installed with a roller 516, a plurality of groups of connecting rods 513 are hinged on the movable rod 511, one end of the connecting rod 513 is hinged with a guide rod 514, one end of the guide rod 514 is fixedly connected with a correction piece 515 for correcting the welding sheet 7, the correction piece 515 is located in the placement groove 2053, and the correction piece 515 is slidably connected to the placement groove 2053, a baffle 105 is arranged on the other side of the frame 1, the roller 516 is rollingly connected to the baffle 105, and a second inclined surface 51 for pushing the roller 516 is arranged at one end of the baffle 105, a plurality of groups of guide holes 517 are opened on the frame 2051, and a plurality of groups of guide rods 514 are respectively slidably connected to a plurality of groups of guide holes 517.

[0033] Specifically, since the diameter of the placement groove 2053 is relatively compact with the welding piece 7, if there are burrs on the edge of the welding piece 7, it is very difficult for the worker to put the welding piece 7 into the placement groove 2053, which may easily cause the welding piece 7 to be stuck in the placement groove 2053. Therefore, the diameter of the placement groove 2053 is designed to be larger than the welding piece 7. When the fork 204 is located at the discharge position, the roller 516 is close to the second inclined surface 51 at one end of the baffle 105. The accommodating volume generated by the combination of the correction member 515 and the placement groove 2053 is larger than the volume of the welding piece 7, so that the staff can easily put the welding piece 7 into the placement groove 2053. When the battery module 6 and the welding piece 7 move toward the bottom of the laser welder 4, the roller 516 is squeezed and pushed by the second inclined surface 51, so that the movable rod 511 moves toward the elastic ring 512 and compresses the elastic ring 512. At the same time, the movable rod 511 drives the connecting rod 513, so that the connecting rod 513 pushes the guide rod 514 to slide along the guide hole 517, and the guide rod 514 pushes the correction piece 515 to move along the placement groove 2053 toward the welding piece 7, so that the accommodation volume generated by the combination of the correction piece 515 and the placement groove 2053 becomes smaller, and the correction piece 515 will be squeezed onto the welding piece 7 to correct the position of the welding piece 7 until the roller 516 is offset from the second inclined surface 51, and the roller 516 rolls along the baffle 105. When the roller 516 is offset from the baffle 105, the elastic ring 512 will release the squeezing of the correction piece 515 on the welding piece 7 under the action of the rebound force, so that the battery module 6 can smoothly fall into the discharge channel 103. The setting of the correction piece 515 makes it more convenient for the staff to place the welding piece 7, and at the same time can correct the position of the welding piece 7 to ensure the accuracy of the welding position of the welding piece 7.

[0034] Working principle: Push the battery module 6 from the discharge position into a group of forks 204, and the battery module 6 is placed on the support plate 102, then place the welding sheet 7 on the battery module 6, and then drive a group of transmission shafts 201 to rotate through the motor, and the transmission shaft 201 drives the sprocket 202 to rotate, so that several groups of forks 204 make circular motion with the chain 203, and the attached Figure 2 The direction indicated by the middle arrow is the circular motion direction, so that the battery module 6 together with the welding sheet 7 is transported to the bottom of the laser welder 4, and the motion is paused. At this time, the welding sheets 7 on the battery module 6 are welded one by one by the laser welder 4, and during the welding process, the next group of battery modules 6 can be pushed from the discharge position into the next group of forks 204. After the welding of the battery module 6 is completed, several groups of forks 204 are driven to make circular motions, so that the next group of battery modules 6 are moved to the bottom of the laser welder 4. At the same time, the welded battery module 6 will move to the top of the feed channel 103, and the battery module 6 will fall into the feed channel 103. The battery module 6 will slide along the feed channel 103 through the feed port 101 and onto the conveyor belt 5. The battery module 6 is transported to the next process by the conveyor belt 5, and the above operation is repeated in a cycle; After the battery module 6 is placed in the shift fork 204, the welding pieces 7 can be placed one by one in the placement grooves 2053 on the frame 2051. The welding pieces 7 are completely matched with the placement grooves 2053. Under the limiting effect of the placement grooves 2053, the welding pieces 7 cannot be offset during the movement, and the pulley 2056 rolls along the avoidance groove 41. When the battery module 6 moves toward the discharge channel 103, the pulley 2056 is squeezed and pushed by the first inclined surface 42, so that the receiving rod 205 4 drives the frame 2051 to move upward along the guide column 2052, and the frame 2051 stretches the spring 2055 until the pulley 2056 is separated from the avoidance groove 41, and the welding sheet 7 is separated from the placement groove 2053, so that the battery module 6 can smoothly fall into the discharge channel 103. When the fork 204 returns to the discharge position again, the pulley 2056 rolls into the avoidance groove 41, and under the rebound force of the spring 2055, the lower end surface of the frame 2051 is again attached to the upper end surface of the fork 204; The volume of the correction member 515 combined with the placement groove 2053 is larger than the volume of the welding piece 7, so that the staff can easily put the welding piece 7 into the placement groove 2053. When the battery module 6 and the welding piece 7 move toward the bottom of the laser welder 4, the roller 516 is squeezed and pushed by the second inclined surface 51, so that the movable rod 511 moves toward the elastic ring 512 and compresses the elastic ring 512. At the same time, the movable rod 511 drives the connecting rod 513, so that the connecting rod 513 pushes the guide rod 514 to slide along the guide hole 517, and the guide rod 51 The correction piece 515 is pushed to move along the placement groove 2053 toward the welding piece 7, so that the accommodation volume formed by the combination of the correction piece 515 and the placement groove 2053 becomes smaller, and the correction piece 515 will squeeze the welding piece 7 to achieve the correction of the position of the welding piece 7 until the roller 516 is offset from the second inclined surface 51 and the roller 516 rolls against the baffle 105. When the roller 516 is offset from the baffle 105, the elastic ring 512 will release the squeezing of the correction piece 515 on the welding piece 7, so that the battery module 6 can smoothly fall into the discharge channel 103.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fiber laser welding device, comprising a frame (1), characterized in that: A conveying mechanism (2) for conveying a battery module (6) is arranged in the frame (1); an XYZ axis moving mechanism (3) is installed on one side of the frame (1); a laser welder (4) is installed on the XYZ axis moving mechanism (3); and a conveyor belt (5) is connected to one side of an end of the frame (1); The transmission mechanism (2) comprises two sets of transmission shafts (201), and the two sets of transmission shafts (201) are rotatably mounted in the frame (1); Sprocket wheels (202) are mounted on both sets of transmission shafts (201); A chain (203), wherein the two sets of sprockets (202) engage the chain (203); A plurality of groups of shift forks (204) for placing battery modules (6) are arranged around the chain (203), and one end of the shift fork (204) is fixedly connected to the chain (203); A plurality of groups of the shift forks (204) are provided with a support plate (102) for supporting the battery module (6); one side of the support plate (102) is fixedly connected to the inner wall of the frame (1); one end of the support plate (102) is provided with a material discharge channel (103); one side of the end of the frame (1) is provided with a material discharge port (101); the material discharge port (101) is located between the material discharge channel (103) and the conveyor belt (5).

2. The optical fiber laser welding equipment according to claim 1, characterized in that: A protective cover (8) is provided above the laser welder (4), and a ventilation pipe (9) is connected above the protective cover (8).

3. The optical fiber laser welding equipment according to claim 2, characterized in that: The shift fork (204) is provided with a correction frame (205) for limiting the position of the welding sheet (7), and the correction frame (205) comprises: A frame (2051), the frame (2051) being located on the shift fork (204), and the frame (2051) being provided with a plurality of groups of placement grooves (2053) for placing welding sheets (7); Four groups of guide pillars (2052) are respectively inserted into the four corners of the frame (2051), and the guide pillars (2052) are fixedly mounted on the shift fork (204); A receiving rod (2054), the upper end of which is fixedly connected to the frame (2051); A spring (2055) sleeved on the receiving rod (2054); The pulley (2056) mounted at the lower end of the receiving rod (2054) is rotatably mounted.

4. The optical fiber laser welding equipment according to claim 3, characterized in that: A countersunk hole (2041) is provided on the shift fork (204), the receiving rod (2054) and the spring (2055) are both located in the countersunk hole (2041), and the receiving rod (2054) is slidably connected to the countersunk hole (2041).

5. The optical fiber laser welding equipment according to claim 4, characterized in that: The lower end of the spring (2055) is fixedly connected to the inner wall of the countersunk hole (2041), and the upper end of the spring (2055) is fixedly connected to the shift fork (204).

6. The optical fiber laser welding equipment according to claim 5, characterized in that: A receiving ring (104) is provided between the two groups of transmission shafts (201); the receiving ring (104) is rotatably connected to the transmission shaft (201); the pulley (2056) is rollingly connected to the outer ring of the receiving ring (104); an escape groove (41) is provided on the outer ring of the receiving ring (104); and a first inclined surface (42) for pushing the pulley (2056) is provided at one end of the escape groove (41).

7. The optical fiber laser welding equipment according to claim 6, characterized in that: A movable rod (511) is movably inserted into the frame (2051), one end of the movable rod (511) abuts against an elastic ring (512), the elastic ring (512) is located inside the frame (2051), and a roller (516) is rotatably mounted on the other end of the movable rod (511); A plurality of groups of connecting rods (513) are hingedly connected to the movable rod (511); One end of the connecting rod (513) is hingedly connected to a guide rod (514); One end of the guide rod (514) is fixedly connected to a correction piece (515) for correcting the welding sheet (7).

8. The optical fiber laser welding equipment according to claim 7, characterized in that: The correction piece (515) is located in the placement groove (2053), and the correction piece (515) is slidably connected to the placement groove (2053).

9. The optical fiber laser welding equipment according to claim 8, characterized in that: A baffle (105) is provided on the other side of the frame (1), the roller (516) is rollingly connected to the baffle (105), and a second inclined surface (51) for pushing the roller (516) is provided at one end of the baffle (105).

10. The optical fiber laser welding equipment according to claim 9, characterized in that: The frame (2051) is provided with a plurality of groups of guide holes (517), and a plurality of groups of guide rods (514) are slidably connected to the plurality of groups of guide holes (517) respectively.

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