High-quality stainless steel laser welding device

Abstract

The invention provides a high-quality stainless steel laser welding device, and relates to the technical field of laser welding, the high-quality stainless steel laser welding device comprises a main welding frame, the main body of the main welding frame is of a U-shaped structure with a forward opening, and the front end of the top of the main welding frame exceeds the front end of the bottom; a welding seat matched with the guide rail is slidably arranged on the upper portion in the main welding frame, a laser generator is rotatably arranged below the welding seat, and an angle adjusting motor used for driving the laser generator to rotate is fixedly arranged outside the welding seat; side sliding seats are fixedly arranged at the front ends of the two sides of the lower portion of the main welding frame. Hydraulic centering fixing, accurate and efficient positioning and hydraulic driving are adopted, the supporting rollers are matched with the hexagonal main frame and the hexagonal auxiliary frame, axial positioning and centering fixing of a workpiece and linkage monitoring feedback of a side control motor are achieved, it is ensured that a welding seam and a welding position are accurately aligned, the welding precision and quality are effectively improved, and hydraulic transmission can provide applicability; and the movement of the hydraulic pressure is large, so that workpieces with different sizes can be fixedly machined.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, in particular to a high-quality stainless steel laser welding device. Background Art

[0002] When processing stainless steel pipes or shafts, laser welding and rotary welding are used. The two sides of the shaft or pipe are fixed by a three-jaw chuck, and then the welding points are aligned. The workpiece is rotated to perform rotary welding. After welding, the welding position is cleaned and the workpiece is disassembled to complete the processing.

[0003] The current welding method uses a chuck to fix the workpiece, which lacks adaptability and has limited adaptability to the workpiece. It cannot automatically splice and fix workpieces whose length exceeds or is shorter than the chuck's travel path, and it is not convenient to quickly and automatically adjust to the workpiece diameter and fix the workpiece in the center.

[0004] For example, the patent with application number CN202410981726.1 discloses a stainless steel pipe welding device, including a storage box, a support plate is slidably connected to the upper end of the storage box, a fixing frame is installed on the upper end surface of the support plate, a semicircular limit frame is fixed to the upper end of the fixing frame, a plurality of ball bearings are evenly connected to the inner wall of the semicircular limit frame, and an annular welding assembly is provided in the inner cavity of the semicircular limit frame; it solves the problem that the joint of the stainless steel pipe is welded in a ring shape using a welding head, and if the joint of the stainless steel pipe and the pipeline is not spot-welded in several places in advance, when the welding head is completed on one side of the joint of the stainless steel pipe, if the stainless steel moves, the weld will be broken at the completed joint, which not only slows the welding efficiency but also causes unstable welding quality.

[0005] It uses a turnover welding method to process the workpiece, which makes it inconvenient to center the workpiece and perform multi-state welding. Summary of the Invention

[0006] In view of this, the present invention provides a high-quality stainless steel laser welding device to address the deficiencies in the above-mentioned prior art.

[0007] The present invention provides a high-quality stainless steel laser welding device, which specifically includes: a main welding frame, the main body of the main welding frame is a U-shaped structure with an opening forward, and the top front end of the main welding frame exceeds the bottom front end; a welding seat is provided on the upper part of the main welding frame to slide in cooperation with the guide rail, a laser generator is provided for rotation below the welding seat, and an angle adjustment motor for driving the laser generator to rotate is fixedly provided outside the welding seat; side sliding seats are fixedly provided on the front ends of both sides of the lower side of the main welding frame, and a transverse seat is provided on the top of the side sliding seat to slide in cooperation with the guide rail, and an assembly rotating seat is fixedly provided on the top of the transverse seat; a connecting seat, A tubular shaft is integrally provided in the middle of the bottom, and the tubular shaft is rotatably provided in the assembly swivel seat in conjunction with a tapered roller bearing; a hexagonal main frame is fixedly provided on the adjacent sides of the two sets of connecting seats, and a hexagonal sub-frame is fixedly provided on the other side of the connecting seat; two sets of hydraulic pistons are fixedly provided at the bottom and the upper inclined positions of the hexagonal main frame, and the telescopic ends of the hydraulic pistons are fixedly provided with support wheel seats on the inner sides of the hexagonal main frames, and two sets of support rollers are rotatably provided outside the support wheel seats; a linkage shaft A is rotatably provided in the support wheel seats, and a synchronous belt drive connection is provided between the linkage shaft A and one end of the rotating shaft of the support roller.

[0008] Optionally, an adjusting screw is rotatably provided on the top of the main welding frame, a driving motor is fixedly provided on the front end of the main welding frame, the main welding frame is transmission-connected to the adjusting screw, a nut is provided on the top of the welding seat and is threadedly connected to the adjusting screw; a monitor is provided in the middle of the main welding frame.

[0009] Optionally, a side-moving screw is rotatably arranged in the middle of the side sliding seat, and a side-control motor is fixedly arranged at the outer end of the side sliding seat, and the side-control motor is transmission-connected to the side-moving screw; two sets of protective frames are fixedly arranged in the side sliding seat, and the main body of the protective frame is U-shaped and the opening is facing downward; a rod-shaped resistor is fixedly arranged in the middle of the protective frame.

[0010] Optionally, a connecting assembly is fixedly provided at the bottom of the transverse shift seat, the connecting assembly slides outside the two groups of rod-shaped resistors, and a circuit is provided inside the connecting assembly to connect the two groups of rod-shaped resistors; a nut is provided at the bottom of the transverse shift seat to be threadedly connected to the side shift screw.

[0011] Optionally, an oil bag seat is fixedly provided on the top of the transverse seat, and a hydraulic oil bag is fixedly provided on the top of the oil bag seat; an oil pump is connected to the outside of the oil bag seat, and a pipeline is provided at the other end of the oil pump to pass through the assembly swivel seat and be connected to each group of hydraulic pistons.

[0012] Optionally, a turnover control motor is fixedly provided outside the assembly swivel seat, a bevel gear is fixedly provided on the outside of the bottom of the tube shaft, and a bevel gear is provided at the shaft end of the turnover control motor to be transmission-connected with the bevel gear.

[0013] Optionally, a hexagonal shaft is rotatably provided in the middle of the supporting wheel seat, and a bevel gear transmission connection is set between the hexagonal shaft and the linkage shaft A; square through grooves are provided at the bottom of the hexagonal main frame and the middle of the inclined position on both sides, and a plate-shaped swivel seat is fixedly provided in the square through grooves, and a swivel sleeve is rotatably provided in the middle of the plate-shaped swivel seat to cooperate with the bearing; the hexagonal shaft is slidably connected to the swivel sleeve; six groups of linkage shafts B are rotatably provided in the middle of the side of the hexagonal main frame, and the linkage shaft B is connected to the swivel sleeve with a bevel gear transmission; six groups of synchronous shafts are rotatably provided outside the hexagonal main frame, and the synchronous shafts are parallel to the sides of the hexagonal main frame; the synchronous shaft and the linkage shaft B are connected with a bevel gear transmission; transmission shafts are rotatably provided at the corners of the hexagonal main frame, and the transmission shaft is connected to the two adjacent groups of synchronous shafts with a bevel gear transmission; a transmission motor is fixedly provided on one side of the top of the hexagonal main frame, and the shaft end of the hexagonal main frame is connected to the upper synchronous shaft with a bevel gear transmission.

[0014] Optionally, the main structure of the hexagonal sub-frame is the same as that of the hexagonal main frame, and the hexagonal sub-frame is equipped with the same structure as the hydraulic piston, the supporting wheel seat and the supporting wheel seat.

[0015] The beneficial effects are as follows: The present invention adopts hydraulic centering fixation, which can achieve accurate and efficient positioning. The hydraulically driven support roller cooperates with the hexagonal main and auxiliary frames to realize axial positioning and centering fixation of the workpiece. The side control motor is linked to monitor feedback to ensure that the weld and the welding position are accurately aligned, effectively improving the welding accuracy and quality. In addition, the hydraulic transmission can provide applicability, and the hydraulic activity is large, which can be used to fix and process workpieces of different sizes.

[0016] In the present invention, the equipment integrates two modes: rotary welding and angle adjustment. It can not only meet the rotary welding needs of conventional workpieces, but also perform multi-angle non-rotational welding on bent pipes and elbows. Through the coordinated adjustment of components, full coverage of diversified welding scenarios is achieved. In addition, it adopts an automatic splicing method, and can merge two groups of workpieces for splicing through transmission control, which is convenient for welding operations with a dual-axis moving laser generator.

[0017] In the present invention, the redundant design of the synchronous belt drive can ensure that the operation can be temporarily maintained when a single set of transmission fails, reducing the risk of welding interruption, and it can be replaced again after welding is completed; the various drive components have clear division of labor and close linkage, ensuring the continuous and stable operation of the equipment under complex operations, reducing maintenance frequency and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the present invention is shown; Figure 2 A schematic diagram of the shaft side structure of an embodiment of the present invention is shown; Figure 3A schematic diagram of the side tilt structure of an embodiment of the present invention is shown; Figure 4 A partial three-dimensional cross-sectional structural diagram of an embodiment of the present invention is shown; Figure 5 Shows an embodiment of the present invention Figure 4 Schematic diagram of the side elevation structure; Figure 6 Shows an embodiment of the present invention Figure 4 A side structural diagram of Figure 7 It shows a schematic diagram of the three-dimensional assembly structure of the hexagonal main frame in an embodiment of the present invention; Figure 8 A schematic diagram of the transmission structure of the support roller in an embodiment of the present invention is shown.

[0019] List of reference numerals: 1. Main welding frame; 101. Adjusting screw; 102. Driving motor; 103. Monitor; 2. Welding seat; 201. Laser generator; 202. Angle adjustment motor; 3. Side sliding seat; 301. Side moving screw; 302. Side control motor; 303. Protective frame; 304. Rod-shaped resistor; 4. Transverse moving seat; 401. Connecting assembly; 5. Assembly rotating seat; 501. Turnaround control motor; 6. Oil bag seat; 601. Liquid Oil pressure bag; 602, oil pump; 7, connecting seat; 701, pipe shaft; 702, bevel gear plate; 8, hexagonal main frame; 801, hydraulic piston; 802, support wheel seat; 803, support roller; 804, linkage shaft A; 805, hexagonal shaft; 806, plate-shaped swivel seat; 807, swivel sleeve; 808, linkage shaft B; 809, synchronous shaft; 810, transmission shaft; 811, transmission motor; 9, hexagonal sub-frame. DETAILED DESCRIPTION

[0020] In order to make the purpose, solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0021] Example 1: Please refer to the accompanying drawings in the specification. Figures 1 to 8 As shown: The present invention proposes a high-quality stainless steel laser welding device, comprising: a main welding frame 1, the main body of the main welding frame 1 is a U-shaped structure with an opening forward, and the top front end of the main welding frame 1 exceeds the bottom front end; a welding seat 2 is provided on the upper part of the main welding frame 1 in cooperation with a guide rail for sliding, a laser generator 201 is rotatably provided below the welding seat 2, and an angle adjustment motor 202 for driving the laser generator 201 to rotate is fixedly provided on the outside of the welding seat 2; side sliding seats 3 are fixedly provided on the front ends of both sides of the lower side of the main welding frame 1, a transverse seat 4 is provided on the top of the side sliding seat 3 in cooperation with the guide rail for sliding, and an assembly rotating seat 5 is fixedly provided on the top of the transverse seat 4; a connecting seat 7, a pipe shaft is integrally provided in the middle of the bottom of the connecting seat 7 701, the tubular shaft 701 is rotatably arranged in the assembly swivel seat 5 in conjunction with the tapered roller bearing; the adjacent sides of the two groups of connecting seats 7 are fixedly provided with a hexagonal main frame 8, and the other side of the connecting seat 7 is fixedly provided with a hexagonal sub-frame 9; two groups of hydraulic pistons 801 are fixedly provided at the bottom and the upper inclined positions on both sides of the hexagonal main frame 8, and the telescopic ends of the hydraulic pistons 801 are both on the inner side of the hexagonal main frame 8, and the telescopic ends of the hydraulic pistons 801 are fixedly provided with support wheel seats 802, and two groups of support rollers 803 are rotatably arranged outside the support wheel seats 802; a linkage shaft A804 is rotatably provided in the support wheel seats 802, and a synchronous belt drive connection is provided with the linkage shaft A804 and one end of the rotating shaft of the support roller 803.

[0022] Among them, an adjusting screw 101 is rotatably provided on the top of the main welding frame 1, a driving motor 102 is fixedly provided on the front end of the main welding frame 1, the main welding frame 1 is transmission-connected to the adjusting screw 101, a nut is provided on the top of the welding seat 2 and is threadedly connected to the adjusting screw 101; a monitor 103 is provided in the middle of the main welding frame 1.

[0023] Among them, a side-moving screw 301 is rotatably set in the middle of the side sliding seat 3, and a side-control motor 302 is fixedly set at the outer end of the side sliding seat 3, and the side-control motor 302 is transmission-connected to the side-moving screw 301; two sets of protective frames 303 are fixedly set in the side sliding seat 3, and the main body of the protective frame 303 is U-shaped and the opening is facing downward; a rod-shaped resistor 304 is fixedly set in the middle of the protective frame 303.

[0024] Among them, a connecting component 401 is fixedly set at the bottom of the transverse moving seat 4, and the connecting component 401 slides outside the two groups of rod-shaped resistors 304. A circuit is set inside the connecting component 401 to connect the two groups of rod-shaped resistors 304; a nut is set at the bottom of the transverse moving seat 4 to be threadedly connected to the side moving screw 301.

[0025] Among them, an oil bag seat 6 is fixedly set on the top of the transverse displacement seat 4, and a hydraulic oil bag 601 is fixedly set on the top of the oil bag seat 6; an oil pump 602 is connected to the outside of the oil bag seat 6, and a pipeline is set at the other end of the oil pump 602 to pass through the assembly swivel seat 5 and connected to each group of hydraulic pistons 801.

[0026] Among them, a turnover control motor 501 is fixedly installed outside the assembly rotating seat 5, a bevel gear 702 is fixedly installed on the outside of the bottom of the tube shaft 701, and a bevel gear is set at the shaft end of the turnover control motor 501 to be connected to the bevel gear 702 for transmission.

[0027] Among them, the middle of the supporting wheel seat 802 is provided with a hexagonal shaft 805 for rotation with bearings, and the hexagonal shaft 805 is connected to the linkage shaft A804 by a bevel gear transmission; the bottom of the hexagonal main frame 8 and the middle of the inclined position on both sides are provided with square through grooves, and a plate-shaped rotating seat 806 is fixed in the square through grooves, and a rotating sleeve 807 is provided in the middle of the plate-shaped rotating seat 806 for rotation with bearings; the hexagonal shaft 805 is slidably connected to the rotating sleeve 807; six groups of linkage shafts B808 are rotatably provided in the middle of the side of the hexagonal main frame 8, and the linkage shaft B808 is connected to the The rotating sleeve 807 is provided with a bevel gear transmission connection; six groups of synchronous shafts 809 are rotatably provided on the outside of the hexagonal main frame 8, and the synchronous shafts 809 are parallel to the sides of the hexagonal main frame 8; the synchronous shafts 809 and the linkage shaft B808 are provided with a bevel gear transmission connection; the corners of the hexagonal main frame 8 are rotatably provided with transmission shafts 810, and the transmission shafts 810 are provided with bevel gear transmission connections with the two adjacent groups of synchronous shafts 809; a transmission motor 811 is fixedly provided on one side of the top of the hexagonal main frame 8, and the shaft end of the hexagonal main frame 8 is provided with a bevel gear transmission connection with the upper synchronous shaft 809.

[0028] The main structure of the hexagonal sub-frame 9 is the same as that of the hexagonal main frame 8 , and the hexagonal sub-frame 9 is installed with the same structure as the hydraulic piston 801 , the supporting wheel seat 802 and the supporting wheel seat 802 .

[0029] The motors used in the present invention are all servo motors; the screw drive can be replaced by any linear drive mechanism such as a linear motor that is not subject to interference from other components; The oil pump 602 is started to pump out the hydraulic oil in the hydraulic oil bag 601 and input it into each group of hydraulic pistons 801 through the pipeline. The hydraulic pistons 801 are expanded to close the support wheel seats 802. The support wheel seats 802 push the support rollers 803 to fit the surface of the workpiece to achieve axial positioning. The two rows of support rollers 803 in the hexagonal main frame 8 and the hexagonal sub-frame 9 are used to stably center the workpiece. The workpiece is adaptable and can accommodate workpieces of different sizes. The side control motor 302 is started to drive the side moving screw 301 to rotate, and the side moving screw 301 drives the transverse moving seat 4 to move so that the two groups of workpieces are brought together, and the workpiece weld seams and welding positions are aligned with the feedback of the monitor 103; Start the angle adjustment motor 202 to drive the laser generator 201 to adjust the angle, start the drive motor 102 to drive the adjustment screw 101 to rotate, and the adjustment screw 101 drives the welding seat 2 to move back and forth to achieve turnover adjustment of the welding position; The support roller 803 is rotatable and maintains the rotation function after the workpiece is fixed. The transmission motor 811 is controlled by the program to drive the transmission shaft 810 to rotate. Each group of transmission shafts 810 and the synchronous shaft 809 rotate synchronously. When the synchronous shaft 809 rotates, it drives the linkage shaft B808 to rotate through the bevel gear. The linkage shaft B808 drives the rotating sleeve 807 to rotate through the bevel gear. The rotating sleeve 807 drives the hexagonal shaft 805 to rotate. The hexagonal shaft 805 drives the linkage shaft A804 to rotate through the bevel gear. The linkage shaft A804 drives each group of support rollers 803 to rotate synchronously through the synchronous belt, thereby driving the workpiece to rotate, and cooperates with the laser generator 201 to perform rotary welding. Example 2: Based on Example 1, the linkage shaft A804 and the support roller 803 are connected by a synchronous belt drive, which can be replaced with a belt or chain as needed. As long as any transmission parts with the same transmission effect can be replaced, if one set of synchronous belts or similar transmission parts breaks, the other synchronous belts can still maintain the rotation effect to ensure temporary transmission, and then be replaced after welding is completed.

[0030] Example 3: Based on Example 1, when welding bends or elbows, rotary welding is not used. The turnover control motor 501 is started to drive the bevel gear disc 702 to rotate, and the angle of the connecting seat 7 is adjusted. The hexagonal main frame 8 and the hexagonal sub-frame 9 rotate synchronously to carry the workpiece to adjust the angle. At this time, welding is performed through the dual-axis adjustment of the laser generator 201. After half a circle of welding, the workpiece is disassembled and flipped over to be welded again.

[0031] Specific usage and function of this embodiment: In the present invention, when in use, the workpiece is directly placed between the hexagonal main frame 8 and the hexagonal auxiliary frame 9, as shown in FIG. Figure 1 Status; The oil pump 602 is started to pump out the hydraulic oil in the hydraulic oil bag 601 and input it into each group of hydraulic pistons 801 through the pipeline. The hydraulic pistons 801 are expanded to bring the support wheel seats 802 together, and then the support wheel seats 802 push the support rollers 803, so that the support rollers 803 are attached to the surface of the workpiece to achieve axial positioning. The two rows of support rollers 803 in the hexagonal main frame 8 and the hexagonal sub-frame 9 achieve stable centering of the workpiece. The side control motor 302 is started to rotate the side moving screw 301, and the side moving screw 301 is used to move the transverse moving seat 4 to bring the two groups of workpieces together. The weld seams and welding positions of the workpieces can be adjusted to align with the feedback of the monitor 103. Start the angle adjustment motor 202 to drive the laser generator 201 to adjust the angle, start the drive motor 102 to drive the adjustment screw 101 to rotate, and the adjustment screw 101 drives the welding seat 2 to move back and forth, providing a welding function that can adjust the welding position in a turnover manner; The support roller 803 can rotate, so after the workpiece is fixed, the workpiece still maintains the rotation function. The transmission motor 811 is controlled by the program to drive the transmission shaft 810 to rotate, and each group of transmission shafts 810 and the synchronization shaft 809 will rotate synchronously; When the synchronous shaft 809 rotates, it cooperates with the bevel gear to drive the linkage shaft B808 to rotate. The linkage shaft B808 cooperates with the bevel gear to drive the rotating sleeve 807 to rotate. The rotating sleeve 807 drives the hexagonal shaft 805 to rotate. The hexagonal shaft 805 cooperates with the bevel gear to drive the linkage shaft A804 to rotate. The linkage shaft A804 cooperates with the synchronous belt to drive each group of support rollers 803 to rotate synchronously. Then, the support rollers 803 are used to drive the workpiece to rotate, and the laser generator 201 is used to perform rotary welding. The linkage shaft A804 and the support roller 803 are connected by a synchronous belt transmission. When one set of synchronous belts breaks, the other synchronous belts can still maintain the rotation effect, ensuring temporary transmission. They can be replaced again after welding is completed. If it is necessary to perform pipe bending or elbow welding, rotary welding is not used. The turnover control motor 501 is started to drive the bevel gear disc 702 to rotate, and the angle of the connecting seat 7 can be directly adjusted. The hexagonal main frame 8 and the hexagonal sub-frame 9 rotate synchronously, carrying the workpiece to adjust the angle. At this time, the dual-axis adjustment of the laser generator 201 can be used for welding. After half a circle of welding, the workpiece can be disassembled and turned over for welding again.

Claims

1. A high-quality stainless steel laser welding device, characterized in that: include: The main welding frame, the main body of the main welding frame is a U-shaped structure with an opening forward, and the top front end of the main welding frame exceeds the bottom front end; a welding seat is provided on the upper part of the main welding frame to slide with the guide rail, a laser generator is provided for rotation below the welding seat, and an angle adjustment motor for driving the laser generator to rotate is fixedly provided outside the welding seat; side sliding seats are fixedly provided on the front ends of both sides of the lower side of the main welding frame, and a transverse seat is provided on the top of the side sliding seat to slide with the guide rail, and an assembly rotating seat is fixed on the top of the transverse seat; a connecting seat, a pipe shaft is provided in an integrated manner in the middle of the bottom of the connecting seat The tubular shaft is rotatably arranged in the assembly swivel seat with a tapered roller bearing; the adjacent sides of the two sets of connecting seats are fixedly provided with a hexagonal main frame, and the other side of the connecting seat is fixedly provided with a hexagonal sub-frame; two sets of hydraulic pistons are fixedly provided at the bottom and the upper inclined positions on both sides of the hexagonal main frame, and the telescopic ends of the hydraulic pistons are fixedly provided with support wheel seats on the inner side of the hexagonal main frame, and two sets of support rollers are rotatably arranged outside the support wheel seats; a linkage shaft A is rotatably provided in the support wheel seat, and a synchronous belt drive connection is provided between the linkage shaft A and one end of the rotating shaft of the support roller.

2. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: The top of the main welding frame is rotatably provided with an adjusting screw, the front end of the main welding frame is fixedly provided with a driving motor, the main welding frame is transmission-connected to the adjusting screw, the top of the welding seat is provided with a nut which is threadedly connected to the adjusting screw; a monitor is provided in the middle of the main welding frame.

3. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: A side-moving screw is rotatably arranged in the middle of the side sliding seat, and a side-control motor is fixedly arranged at the outer end of the side sliding seat, which is transmission-connected to the side-moving screw; two sets of protection frames are fixedly arranged in the side sliding seat, and the main body of the protection frame is U-shaped and the opening is facing downward; a rod-shaped resistor is fixedly arranged in the middle of the protection frame.

4. A high-quality stainless steel laser welding device as claimed in claim 3, characterized in that: A connecting assembly is fixedly provided at the bottom of the transverse shift seat, which slides outside the two groups of rod-shaped resistors. A circuit is provided inside the connecting assembly to connect the two groups of rod-shaped resistors; a nut is provided at the bottom of the transverse shift seat to be threadedly connected to the side shift screw.

5. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: An oil bag seat is fixedly provided on the top of the transverse shift seat, and a hydraulic oil bag is fixedly provided on the top of the oil bag seat; an oil pump is connected to the outside of the oil bag seat, and an oil circuit is set to connect the oil pump and the hydraulic oil bag, and a pipeline is set at the other end of the oil pump to pass through the assembly swivel seat and be connected to each group of hydraulic pistons.

6. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: A turnover control motor is fixedly arranged outside the assembly swivel seat, a bevel gear disk is fixedly arranged outside the bottom of the tube shaft, and a bevel gear is arranged on the shaft end of the turnover control motor to be transmission-connected with the bevel gear disk.

7. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: The middle of the supporting wheel seat is provided with a hexagonal shaft for rotation with a bearing, and the hexagonal shaft is connected to the linkage shaft A by a bevel gear transmission; square through grooves are provided at the bottom of the hexagonal main frame and the middle of the inclined position on both sides, and a plate-shaped swivel seat is fixedly provided in the square through grooves, and a swivel sleeve is provided in the middle of the plate-shaped swivel seat for rotation with a bearing; the hexagonal shaft is slidably connected to the swivel sleeve; six groups of linkage shafts B are rotatably provided in the middle of the side of the hexagonal main frame, and the linkage shaft B is connected to the swivel sleeve by a bevel gear transmission; six groups of synchronous shafts are rotatably provided outside the hexagonal main frame, and the synchronous shafts are parallel to the sides of the hexagonal main frame; the synchronous shafts are connected to the linkage shaft B by a bevel gear transmission; transmission shafts are rotatably provided at the corners of the hexagonal main frame, and the transmission shafts are connected to the two adjacent groups of synchronous shafts by a bevel gear transmission; a transmission motor is fixedly provided on one side of the top of the hexagonal main frame, and the shaft end of the hexagonal main frame is connected to the upper synchronous shaft by a bevel gear transmission.

8. A high-quality stainless steel laser welding device as claimed in claim 1, characterized in that: The main structure of the hexagonal sub-frame is the same as that of the hexagonal main frame, and the hexagonal sub-frame is equipped with the same structure as the hydraulic piston, the supporting wheel seat and the supporting wheel seat.

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