Multi-angle welding equipment for sheet metal parts

Abstract

The present invention discloses a multi-angle welding device for sheet metal parts, which relates to the field of welding processing technology. The multi-angle welding device for sheet metal parts comprises a first annular gear track and a second annular gear track, which are arranged opposite to each other. A movable welding platform is installed between the first annular gear track and the second annular gear track. At least two movable welding platforms are provided. The movable welding platforms comprise a main moving mechanism, a slave moving mechanism, a connecting frame, a transmission adjustment mechanism and a clamping mechanism. This solution solves the problem that the existing sheet metal welding platform can only clamp and adjust one sheet metal part at a time, and welding usually requires two or more sheet metal parts to be docked at a suitable angle. The current equipment can only be used with special tooling to fix each sheet metal part on the tooling for positioning welding, which has low flexibility.

Description

Technical Field

[0001] The present invention relates to the technical field of welding processing, in particular to a multi-angle welding device for sheet metal parts. Background Art

[0002] Sheet metal processing is a comprehensive cold processing technology for thin metal plates, including shearing, punching, cutting, compounding, folding, welding, riveting, splicing, forming, etc. Among them, the welding platform used to adjust the angle of sheet metal parts during the welding process is an indispensable processing equipment.

[0003] The existing sheet metal welding platform, such as announcement number CN118492829B, is named an adaptive fixture for multi-angle welding of sheet metal, which includes a mounting plate, the upper end surface of the mounting plate is symmetrical and fixedly connected to two vertical plates, a first rotating shaft is rotatably connected between the two vertical plates, a connecting frame is fixedly connected to the first rotating shaft, and an adjustment structure for driving the connecting frame to perform multi-angle adjustment is provided on the mounting plate, the top end of the connecting frame is fixedly connected to a connecting plate, the lower end surface of the connecting plate is symmetrical and fixedly connected to two fixed blocks, and a bidirectional screw is rotatably connected between the two fixed blocks.

[0004] However, existing sheet metal welding platforms can only clamp and adjust one sheet metal part at a time. Welding usually requires two or more sheet metal parts to be connected at a suitable angle. Current equipment can only be used with special tooling to fix each sheet metal part on the tooling for positioning welding, which has low flexibility. To this end, we provide a sheet metal multi-angle welding equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-angle welding device for sheet metal parts to solve the problem of low flexibility in the existing sheet metal welding platform proposed in the above background technology, which can only clamp and adjust one sheet metal part at a time, and welding usually requires two or more sheet metal parts to be connected at a suitable angle. The current equipment can only be used with special tooling to fix each sheet metal part on the tooling for positioning welding.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A multi-angle welding device for sheet metal parts, comprising a first annular gear track and a second annular gear track, the first annular gear track and the second annular gear track being arranged opposite to each other, a movable welding platform being installed between the first annular gear track and the second annular gear track, and at least two movable welding platforms being provided, the movable welding platform comprising a main moving mechanism, a slave moving mechanism, a connecting frame, a transmission adjustment mechanism and a clamping mechanism, the main moving mechanism and the slave moving mechanism being respectively transmission-connected to the first annular gear track and the second annular gear track, the connecting frame being installed between the main moving mechanism and the slave moving mechanism, the transmission adjustment mechanism being arranged at the middle position of the connecting frame, the clamping mechanism being installed at the end of the transmission adjustment mechanism, support plates being installed on the inner walls of the first annular gear track and the second annular gear track, a support mechanism being installed on the outer side of the support plate, and a bottom plate being installed at the lower end of the support mechanism, the welding device being placed in front of the robotic arm welding device, and the movable welding platform on the device being flexibly adjusted according to the number of sheet metal parts to be welded.

[0007] Preferably, the main moving mechanism and the slave moving mechanism both include a base and an L-shaped bracket, two L-shaped brackets are provided, and the two L-shaped brackets are respectively installed at the front ends of both sides of the base and arranged opposite to each other, a gear is installed inside the base, the gear is rotatably connected to the base through a rotating shaft, and the main moving mechanism and the slave moving mechanism are respectively meshed and transmitted with the first annular gear track and the second annular gear track through gears, a reducer is installed on the outside of the base of the main moving mechanism, a second servo motor is installed on the outer wall of the reducer, and the output end of the second servo motor is connected to the gear through the reducer, and the outer wall of the reducer is connected to the base through a triangular support plate.

[0008] Preferably, a guide wheel is installed on the inner side of the L-shaped bracket, and the guide wheel is rotatably connected to the L-shaped bracket.

[0009] Preferably, support plate avoidance grooves are provided between the L-shaped brackets.

[0010] Preferably, the upper and lower ends of the L-shaped bracket are both provided with connecting blocks, and the connecting blocks are connected to the base through fasteners.

[0011] Preferably, the transmission adjustment mechanism includes a hydraulic cylinder and a transmission plate, the hydraulic cylinder is installed at the rear end of the connecting frame, the output end of the hydraulic cylinder passes through and extends to the front end of the connecting frame, and a transmission plate is installed, a driven gear plate is installed on the outer wall of the transmission plate, and the driven gear plate is rotatably connected to the transmission plate through a rotating shaft, a U-shaped support is installed at the front end of the driven gear plate, connecting plates are installed on both sides of the rear end of the U-shaped support, and the connecting plates are connected to the driven gear plate through screws, a transmission arm is installed inside the U-shaped support, a first servo motor is installed on the outer wall of one side of the U-shaped support, the output end of the first servo motor passes through and extends to the interior of the U-shaped support, and is transmission-connected to the transmission arm, a connecting seat is installed at the end of the transmission arm, and a number of mounting through holes are provided on the connecting seat.

[0012] Preferably, a driving gear is provided at the lower end of the driven gear disc, and the driving gear is meshed and transmission-connected with the driven gear disc, a belt drive cover is installed below the rear end of the transmission disc, a third servo motor is installed on the outer wall of one end of the belt drive cover, pulleys are installed at both ends of the belt drive cover, the pulleys are connected by belt transmission, the pulley shaft at one end is connected to the driving gear, and the pulley shaft at the other end is transmission-connected to the output end of the third servo motor.

[0013] Preferably, guide columns are provided on both sides of the hydraulic cylinder, one end of the guide column passes through the connecting frame and is fixedly connected to the transmission plate, a linear bearing is installed at the connection between the guide column and the connecting frame, and a limit block is installed at the other end of the guide column.

[0014] Preferably, the clamping mechanism includes a guide rail, a forward screw rod, a reverse screw rod, a stepper motor and a V-shaped clamp seat, the forward screw rod and the reverse screw rod are both installed inside the guide rail, and one end of the forward screw rod is fixedly connected to the reverse screw rod, the stepper motor is installed at one end of the guide rail, and the output end of the stepper motor is transmission-connected to the reverse screw rod, a bearing plate is installed at the connection between the forward screw rod and the reverse screw rod, sliders are installed on the forward screw rod and the reverse screw rod, and the sliders on the forward screw rod and the reverse screw rod are arranged opposite to each other, and V-shaped clamp seats are installed on the sliders of the forward screw rod and the reverse screw rod, and anti-slip grooves are provided on the inner wall of the V-shaped clamp seat, and a connecting plate is installed at the rear end of the guide rail, and the connecting plate is connected to the mounting through hole on the connecting seat through fasteners.

[0015] Preferably, the support mechanism includes an L-shaped support frame, a reinforcement rod and a support plate. Two L-shaped support frames are provided, and adjacent L-shaped support frames are connected by multiple reinforcement rods. The lower end of the L-shaped support frame is fixedly connected to the base plate, and the support plate is installed on the inner side of the L-shaped support frame. The support mechanisms of the first annular gear track and the second annular gear track are fixedly connected by a reinforcement plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention adopts an annular gear track in conjunction with multiple movable welding platforms to achieve angle adjustment of multiple groups of sheet metal parts, so that multiple sheet metal parts can contact each other at any angle to facilitate the subsequent welding operation of the robot arm. During the process, the sheet metal parts are first clamped and fixed by the clamping mechanism on the movable welding platform. After the clamping mechanisms on the multiple movable welding platforms have fixed the sheet metal parts respectively, the second servo motor on the movable welding platform is operated to drive the gear in the main moving mechanism to operate and mesh with the tooth grooves on the outer wall of the annular gear track, so that the multiple movable welding platforms move along the annular gear track to adjust the relative angle of each sheet metal part to a suitable position. During the process, the gear in the slave moving mechanism can engage with the gear on another annular gear track. The tooth-groove meshing transmission plays an auxiliary guiding role and improves the movement stability. After the relative angles of multiple sheet metal parts are adjusted, the spacing, horizontal angles and vertical angles of different sheet metal parts can be further adjusted through the transmission adjustment mechanism, so that the sheet metal parts on different movable welding platforms are in contact at a suitable welding angle. After that, the two sheet metal parts can be welded by the robotic arm welding device. The equipment has high operational flexibility and meets different production needs. It solves the problem of existing sheet metal welding platforms that can only clamp and adjust one sheet metal part at a time, and welding usually requires two or more sheet metal parts to be docked at a suitable angle. The current equipment can only be used with special tooling to fix each sheet metal part on the tooling for positioning and welding, which has low flexibility.

[0018] (2) By arranging two sets of L-shaped brackets on the main moving mechanism and the slave moving mechanism of the movable welding platform, and installing guide wheels on the inner side of the L-shaped brackets, when the movable welding platform moves along the first annular gear track and the second annular gear track, the L-shaped brackets on the main moving mechanism and the slave moving mechanism can slide in contact with the inner wall of the annular gear track through the guide wheels, thereby playing an auxiliary guiding role, improving the stability of the movable welding platform's movement, avoiding its deviation, and extending the service life of the device.

[0019] (3) By arranging a support plate avoidance groove between the L-shaped brackets, since the two sets of first annular gear tracks and second annular gear tracks are connected to the support mechanism through the support plate, when the main moving mechanism and the slave moving mechanism drive the movable welding platform to move along the first annular gear track and the second annular gear track, the support plate avoidance groove between the L-shaped brackets can allow it to pass through the support plate part smoothly without restriction, thereby enabling the movable welding platform to rotate 360 degrees around the annular gear track, greatly improving the range of movement and the flexibility of subsequent adjustment.

[0020] (4) When the clamping mechanism of the present application is in operation, the sheet metal is first placed between the two V-shaped clamping seats of the clamping mechanism, and then the stepper motor on the clamping mechanism is driven to operate, causing the forward screw and the reverse screw to rotate, and the sliders on the forward screw and the reverse screw to transmit the two sets of sliders to move in opposite directions, and the sheet metal is clamped and fixed from both sides by the V-shaped clamping seats on the sliders, thereby achieving the clamping of sheet metal parts of various specifications. A connecting plate is installed at the rear end of the clamping mechanism, and the connecting plate is connected to the mounting through hole on the connecting seat by fasteners, so that the clamping mechanism is a detachable structure, which includes but is not limited to the clamping method provided in this embodiment. When it comes to special-shaped sheet metal parts, the corresponding clamping tooling can be replaced according to the requirements of the sheet metal parts to meet the diverse clamping needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a side structural schematic diagram of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the movable welding platform of the present invention;

[0024] Figure 4 Schematic diagram of the main moving mechanism structure of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the transmission adjustment mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the rear structure of the transmission adjustment mechanism of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the clamping mechanism of the present invention;

[0028] In the figure: 1. First annular gear track; 2. Second annular gear track; 3. Support plate; 4. Support mechanism; 401. L-shaped support frame; 402. Reinforcement rod; 403. Support plate; 404. Reinforcement plate; 5. Bottom plate; 6. Movable welding platform; 601. Main moving mechanism; 602. Slave moving mechanism; 603. Connecting frame; 604. Transmission adjustment mechanism; 6041. Hydraulic cylinder; 6042. Transmission plate; 6043. Driven gear plate; 6044. U-shaped support; 6045. Connecting piece; 6046. Transmission arm; 6047. First servo motor; 6048. Connecting seat; 60 49. Mounting through hole; 605. Clamping mechanism; 6051. Guide rail; 6052. Connecting plate; 6053. Forward screw; 6054. Reverse screw; 6055. Stepper motor; 6056. Bearing plate; 6057. Slider; 6058. V-type clamp seat; 6059. Anti-slip groove; 7. Base; 8. L-shaped bracket; 9. Support plate avoidance groove; 10. Guide wheel; 11. Gear; 12. Reducer; 13. Triangular support plate; 14. Second servo motor; 15. Guide column; 16. Limit block; 17. Linear bearing; 18. Belt drive cover; 19. Third servo motor; 20. Driving gear. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figure 1-7, an embodiment of the present invention provides: a sheet metal multi-angle welding device, comprising a first ring gear track 1 and a second ring gear track 2, the first ring gear track 1 and the second ring gear track 2 are arranged opposite to each other, a movable welding platform 6 is installed between the first ring gear track 1 and the second ring gear track 2, and at least two movable welding platforms 6 are provided, and the movable welding platform 6 includes a main moving mechanism 601, a slave moving mechanism 602, a connecting frame 603, a transmission adjustment mechanism 604 and a clamping mechanism 605, the main moving mechanism 601 and the slave moving mechanism 602 are respectively connected to the first ring gear track 1 and the second ring gear track 2, the connecting frame 603 is installed between the main moving mechanism 601 and the slave moving mechanism 602, the transmission adjustment mechanism 604 is arranged at the middle position of the connecting frame 603, and the clamping mechanism 605 05 is installed at the end of the transmission adjustment mechanism 604, and a support plate 3 is installed on the inner wall of the first ring gear track 1 and the second ring gear track 2. A support mechanism 4 is installed on the outer side of the support plate 3, and a bottom plate 5 is installed at the lower end of the support mechanism 4. The main moving mechanism 601 and the slave moving mechanism 602 both include a base 7 and an L-shaped bracket 8. There are two L-shaped brackets 8, which are respectively installed at the front ends of both sides of the base 7 and arranged opposite to each other. A gear 11 is installed inside the base 7, and the gear 11 is rotatably connected to the base 7 through a rotating shaft. The main moving mechanism 601 and the slave moving mechanism 602 are respectively meshed and connected with the first ring gear track 1 and the second ring gear track 2 through the gear 11. A reducer 12 is installed on the outer side of the base 7 of the main moving mechanism 601, and a second servo motor 14 is installed on the outer wall of the reducer 12.The output end of the second servo motor 14 is connected to the gear 11 through the reducer 12, and the outer wall of the reducer 12 is connected to the base 7 through the triangular support plate 13. The transmission adjustment mechanism 604 includes a hydraulic cylinder 6041 and a transmission disc 6042. The hydraulic cylinder 6041 is installed at the rear end of the connecting frame 603. The output end of the hydraulic cylinder 6041 passes through and extends to the front end of the connecting frame 603, and is installed with a transmission disc 6042. A driven gear disc 6043 is installed on the outer wall of the transmission disc 6042, and the driven gear disc 6043 is rotatably connected to the transmission disc 6042 through a rotating shaft. A U-shaped support 6044 is installed at the front end of the driven gear disc 6043. The U-shaped support 6044 Connecting pieces 6045 are installed on both sides of the rear end, and the connecting pieces 6045 are connected to the driven gear plate 6043 by screws. A transmission arm 6046 is installed inside the U-shaped support 6044. A first servo motor 6047 is installed on the outer wall of one side of the U-shaped support 6044. The output end of the first servo motor 6047 passes through and extends to the interior of the U-shaped support 6044 and is connected to the transmission arm 6046. A connecting seat 6048 is installed at the end of the transmission arm 6046. A plurality of mounting through holes 6049 are provided on the connecting seat 6048. A driving gear 20 is provided at the lower end of the driven gear plate 6043, and the driving gear 20 is meshed with the driven gear plate 6043. The transmission is connected, a belt drive cover 18 is installed below the rear end of the transmission disk 6042, and a third servo motor 19 is installed on the outer wall of one end of the belt drive cover 18. Pulleys are installed at both ends of the belt drive cover 18, and the pulleys are connected by belt transmission. The pulley shaft at one end is connected to the driving gear 20, and the pulley shaft at the other end is connected to the output end of the third servo motor 19. The clamping mechanism 605 includes a guide rail 6051, a forward screw rod 6053, a reverse screw rod 6054, a stepping motor 6055 and a V-shaped clamp seat 6058. The forward screw rod 6053 and the reverse screw rod 6054 are both installed inside the guide rail 6051, and the forward screw rod 6053 is connected to the driving gear 20. One end of 053 is fixedly connected to the reverse screw rod 6054. The stepper motor 6055 is mounted on one end of the guide rail 6051, and the output end of the stepper motor 6055 is transmission-connected to the reverse screw rod 6054. A bearing plate 6056 is mounted at the connection between the forward screw rod 6053 and the reverse screw rod 6054. Slide blocks 6057 are mounted on both the forward screw rod 6053 and the reverse screw rod 6054, and the slide blocks 6057 on the forward screw rod 6053 and the reverse screw rod 6054 are arranged opposite each other. V-shaped clamping seats 6058 are mounted on the sliders 6057 of the forward screw rod 6053 and the reverse screw rod 6054, and anti-slip grooves 6059 are provided on the inner wall of the V-shaped clamping seat 6058.

[0031] The welding equipment is placed in front of the robotic arm welding device. The movable welding platform 6 on the equipment is flexibly adjusted according to the number of sheet metal parts to be welded. The following is only an embodiment when there are two groups of movable welding platforms 6:

[0032] When in use, the sheet metal parts are placed between the clamping mechanisms 605 of the two movable welding platforms 6 respectively, and the stepper motor 6055 on the clamping mechanism 605 runs, driving the forward screw rod 6053 and the reverse screw rod 6054 to rotate, and transmits the transmission to the slider 6057 on the forward screw rod 6053 and the reverse screw rod 6054, so that the two sets of sliders 6057 move in opposite directions, and the V-shaped clamp seat 6058 on the slider 6057 is used to clamp and fix the sheet metal parts from both sides. After the clamping mechanisms 605 on the two movable welding platforms 6 have fixed the sheet metal parts respectively, the second servo motor 14 on the movable welding platform 6 runs, driving the gear 11 in the main moving mechanism 601 to run, and meshing with the tooth groove on the outer wall of the first annular gear track 1, so that the two movable welding platforms 6 move along the annular gear track and adjust the relative angle to a suitable position. During the process, the gear 11 in the movable mechanism 602 It can mesh with the teeth and grooves on the second ring gear track 2 for transmission, play an auxiliary guiding role, and improve the movement stability. After the relative angle of the two sheet metal parts is adjusted, the position of the two groups of sheet metal parts can be further adjusted through the transmission adjustment mechanism 604. The hydraulic cylinder 6041 in the transmission adjustment mechanism 604 can control the forward and backward movement of the component, thereby adjusting the spacing between the sheet metal parts on the two movable welding platforms 6. The third servo motor 19 and the belt transmission mechanism drive the driving gear 20 to rotate, which can be transmitted to the driven gear plate 6043 to adjust the horizontal rotation angle of the sheet metal part. The first servo motor 6047 can drive the transmission arm 6046 to rotate up and down to adjust the vertical angle of the sheet metal part. Based on the above adjustment, the sheet metal parts on the two movable welding platforms 6 are in contact at a suitable welding angle, and then the two sheet metal parts can be welded by the robotic arm welding device.

[0033] See also Figure 3 and Figure 4 A guide wheel 10 is installed on the inner side of the L-shaped bracket 8, and the guide wheel 10 is rotatably connected to the L-shaped bracket 8. During the movement of the movable welding platform 6 along the first annular gear track 1 and the second annular gear track 2, the L-shaped bracket 8 on the main moving mechanism 601 and the slave moving mechanism 602 can both slide in contact with the inner wall of the annular gear track through the guide wheel 10, thereby playing an auxiliary guiding role, improving the stability of the movement of the movable welding platform 6, and preventing it from deflecting.

[0034] See also Figure 3 and Figure 4A support plate avoidance groove 9 is provided between the L-shaped brackets 8. Since the two sets of first annular gear tracks 1 and second annular gear tracks 2 are connected to the support mechanism 4 through the support plate 3, when the main moving mechanism 601 and the slave moving mechanism 602 drive the movable welding platform 6 to move along the first annular gear track 1 and the second annular gear track 2, the support plate avoidance groove 9 between the L-shaped brackets 8 can allow it to pass through the support plate 3 smoothly without restriction, thereby enabling the movable welding platform 6 to rotate 360 degrees around the annular gear track, greatly improving the range of motion and the flexibility of subsequent adjustment.

[0035] Furthermore, connecting blocks are provided at the upper and lower ends of the L-shaped bracket 8, and the connecting blocks are connected to the base 7 through fasteners. The L-shaped bracket 8 is a detachable structure, which is convenient for installing a corresponding number of movable welding platforms 6 on the ring gear track according to actual processing requirements.

[0036] See also Figure 1 and Figure 5 A guide column 15 is provided on both sides of the hydraulic cylinder 6041. One end of the guide column 15 passes through the connecting frame 603 and is fixedly connected to the transmission plate 6042. A linear bearing 17 is installed at the connection between the guide column 15 and the connecting frame 603. A limit block 16 is installed at the other end of the guide column 15. During the extension and retraction of the hydraulic cylinder 6041, the guide column 15 can slide along the linear bearing 17 on the connecting frame 603, thereby guiding the extension and retraction of the hydraulic cylinder 6041 and preventing the output end of the hydraulic cylinder 6041 from being offset.

[0037] See also Figure 1 The support mechanism 4 includes an L-shaped support frame 401, a reinforcement rod 402 and a support plate 403. Two L-shaped support frames 401 are provided, and adjacent L-shaped support frames 401 are connected by multiple reinforcement rods 402. The lower end of the L-shaped support frame 401 is fixedly connected to the base plate 5. The support plate 403 is installed on the inner side of the L-shaped support frame 401. The support mechanisms 4 of the first annular gear track 1 and the second annular gear track 2 are fixedly connected by a reinforcement plate 404.

[0038] Furthermore, a connecting plate 6052 is installed at the rear end of the guide rail 6051, and the connecting plate 6052 is connected to the mounting through hole 6049 on the connecting seat 6048 through fasteners. The clamping mechanism 605 is a detachable structure, which includes but is not limited to the clamping method provided in this embodiment. The corresponding clamping tooling can be replaced according to the requirements of the sheet metal parts to meet the diverse clamping needs.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sheet metal multi-angle welding device, comprising a first ring gear track (1) and a second ring gear track (2), characterized in that: The first annular gear track (1) and the second annular gear track (2) are arranged opposite to each other. A movable welding platform (6) is installed between the first annular gear track (1) and the second annular gear track (2). At least two movable welding platforms (6) are provided. The movable welding platforms (6) include a main moving mechanism (601), a slave moving mechanism (602), a connecting frame (603), a transmission adjustment mechanism (604) and a clamping mechanism (605). The main moving mechanism (601) and the slave moving mechanism (602) are respectively connected to the first annular gear track (1) and the second annular gear track (2). The ring gear track (2) is connected in transmission, the connecting frame (603) is installed between the main moving mechanism (601) and the slave moving mechanism (602), the transmission adjustment mechanism (604) is arranged at the middle position of the connecting frame (603), the clamping mechanism (605) is installed at the end of the transmission adjustment mechanism (604), the inner walls of the first ring gear track (1) and the second ring gear track (2) are both installed with a support plate (3), the outer side of the support plate (3) is installed with a support mechanism (4), and the lower end of the support mechanism (4) is installed with a bottom plate (5); The main moving mechanism (601) and the slave moving mechanism (602) both include a base (7) and an L-shaped bracket (8), two L-shaped brackets (8) are provided, and the two L-shaped brackets (8) are respectively installed at the front ends of both sides of the base (7) and are arranged opposite to each other. A gear (11) is installed inside the base (7), and the gear (11) is rotationally connected to the base (7) through a rotating shaft. The main moving mechanism (601) and the slave moving mechanism (602) are respectively meshed and transmission-connected with the first annular gear track (1) and the second annular gear track (2) through the gear (11). A reducer (12) is installed outside the base (7) of the main moving mechanism (601), and a second servo motor (14) is installed on the outer wall of the reducer (12), and the output end of the second servo motor (14) is transmission-connected to the gear (11) through the reducer (12); The transmission adjustment mechanism (604) includes a hydraulic cylinder (6041) and a transmission disc (6042). The hydraulic cylinder (6041) is installed at the rear end of the connecting frame (603). The output end of the hydraulic cylinder (6041) passes through and extends to the front end of the connecting frame (603) and is installed with a transmission disc (6042). A driven gear disc (6043) is installed on the outer wall of the transmission disc (6042). The driven gear disc (6043) is rotatably connected to the transmission disc (6042) via a rotating shaft. A U-shaped support (6044) is installed at the front end of the driven gear disc (6043). The rear end of the U-shaped support (6044) is Connecting pieces (6045) are installed on both sides, and the connecting pieces (6045) are connected to the driven gear plate (6043) by screws. A transmission arm (6046) is installed inside the U-shaped support (6044). A first servo motor (6047) is installed on the outer wall of one side of the U-shaped support (6044). The output end of the first servo motor (6047) passes through and extends to the inside of the U-shaped support (6044) and is transmission-connected to the transmission arm (6046). A connecting seat (6048) is installed at the end of the transmission arm (6046). A plurality of mounting through holes (6049) are provided on the connecting seat (6048). A driving gear (20) is provided at the lower end of the driven gear plate (6043), and the driving gear (20) is meshed and transmission-connected with the driven gear plate (6043); The clamping mechanism (605) comprises a guide rail (6051), a forward screw rod (6053), a reverse screw rod (6054), a stepping motor (6055) and a V-shaped clamping seat (6058). A connecting plate (6052) is installed at the rear end of the guide rail (6051). The connecting plate (6052) is connected to the mounting through hole (6049) on the connecting seat (6048) via a fastener. The clamping mechanisms (605) on the multiple movable welding platforms (6) respectively fix the sheet metal parts; A plurality of movable welding platforms (6) move along the ring gear track to adjust the relative angles of the sheet metal parts, and then the spacing, horizontal angles and vertical angles of the different sheet metal parts are adjusted through the transmission adjustment mechanism, so that the sheet metal parts on the different movable welding platforms (6) are in contact at a suitable welding angle.

2. The multi-angle welding equipment for sheet metal parts according to claim 1, characterized in that: The outer wall of the reducer (12) is connected to the base (7) via a triangular support plate (13).

3. The multi-angle welding equipment for sheet metal parts according to claim 2, characterized in that: A guide wheel (10) is installed on the inner side of the L-shaped bracket (8), and the guide wheel (10) is rotatably connected to the L-shaped bracket (8).

4. The multi-angle welding equipment for sheet metal parts according to claim 3, characterized in that: Support plate avoidance grooves (9) are provided between adjacent L-shaped brackets (8).

5. The multi-angle welding equipment for sheet metal parts according to claim 4, characterized in that: The upper and lower ends of the L-shaped bracket (8) are both provided with connecting blocks, and the connecting blocks are connected to the base (7) via fasteners.

6. The multi-angle welding equipment for sheet metal parts according to claim 5, characterized in that: A belt drive cover (18) is installed below the rear end of the transmission disc (6042), and a third servo motor (19) is installed on the outer wall of one end of the belt drive cover (18). Pulleys are installed at both ends of the interior of the belt drive cover (18), and the pulleys are connected to each other through a belt drive. The pulley shaft at one end is connected to the driving gear (20), and the pulley shaft at the other end is connected to the output end of the third servo motor (19).

7. The multi-angle welding equipment for sheet metal parts according to claim 6, characterized in that: Guide columns (15) are provided on both sides of the hydraulic cylinder (6041), one end of the guide column (15) passes through the connecting frame (603) and is fixedly connected to the transmission plate (6042), a linear bearing (17) is installed at the connection between the guide column (15) and the connecting frame (603), and a limit block (16) is installed at the other end of the guide column (15).

8. The multi-angle welding equipment for sheet metal parts according to claim 7, characterized in that: The forward screw rod (6053) and the reverse screw rod (6054) are both installed inside the guide rail (6051), and one end of the forward screw rod (6053) is fixedly connected to the reverse screw rod (6054). The stepper motor (6055) is installed at one end of the guide rail (6051), and the output end of the stepper motor (6055) is transmission-connected to the reverse screw rod (6054). A bearing is installed at the connection between the forward screw rod (6053) and the reverse screw rod (6054). The slide (6056) is provided with a slider (6057) on each of the forward screw rod (6053) and the reverse screw rod (6054), and the sliders (6057) on the forward screw rod (6053) and the reverse screw rod (6054) are arranged opposite to each other. A V-shaped clamp seat (6058) is provided on each of the sliders (6057) of the forward screw rod (6053) and the reverse screw rod (6054), and an anti-slip groove (6059) is provided on the inner wall of the V-shaped clamp seat (6058).

9. The multi-angle welding equipment for sheet metal parts according to claim 8, characterized in that: The support mechanism (4) comprises an L-shaped support frame (401), a reinforcement rod (402) and a support plate (403); two L-shaped support frames (401) are provided, and adjacent L-shaped support frames (401) are connected via a plurality of reinforcement rods (402); the lower end of the L-shaped support frame (401) is fixedly connected to the bottom plate (5); the support plate (403) is installed on the inner side of the L-shaped support frame (401); and the support mechanisms (4) of the first annular gear track (1) and the second annular gear track (2) are fixedly connected via the reinforcement plate (404).

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