A multifunctional welding machine

Abstract

The present invention relates to the technical field of multifunctional welding machines, and discloses a multifunctional welding machine, comprising a supporting table, wherein the upper surface of the supporting table is slidably connected to a welding table, and the upper surface of the welding table is provided with an angle adjustment mechanism, wherein a second welding plate and a first welding plate are fixed on a sliding fixing seat and the welding table by means of a first fixing device and a second fixing device, and then a connecting gear is driven to rotate by rotating a worm, and the connecting gear drives an adjusting gear meshing with the connecting gear to rotate, and a rotating frame is driven to rotate by the adjusting gear, thereby achieving the effect of adjusting the angle between the two steel plates, and simultaneously when the angle of the rotating frame changes, the rotation angle change is transmitted to a main controller through an angle sensor, and the controller controls a lifting rod to move up and down, and at the same time controls the angle change of a rotating block, so that the welding machine can be moved to a suitable position during welding.

Description

Technical Field

[0001] The invention relates to the technical field of multifunctional welding machines, and in particular provides a multifunctional welding machine. Background Art

[0002] Hot-rolled steel plates have good toughness and ductility and are often used in the production of steel structures, bridges and ships. In actual use, it is often necessary to weld and splice hot-rolled steel plates according to the specific conditions of the application. The most common process is the vertical splicing of strip hot-rolled steel plates. Two mutually perpendicular strip hot-rolled steel plates (hereinafter referred to as steel plates) are welded together to form a T-shaped or L-shaped steel structure before being put into use.

[0003] In the process of welding L-shaped steel plates or T-shaped steel plates, the existing multifunctional welding machines mainly support and limit the steel plates manually or by brackets to make them in L-shape or T-shape. The former not only has low precision but also has high labor intensity, while the latter usually only supports and limits the vertical steel plates from both sides by simple right-angle support brackets so that they are placed vertically on the horizontal steel plates, and most of the supporting devices used are fixed right-angle fixing devices. When welding two steel plates, different fixing devices need to be replaced. At the same time, when welding on both sides of the connection during the welding process, it is necessary to remove the fixing device after welding one side before welding the other side, and the welding angle cannot be adjusted. For this reason, we propose a multifunctional welding machine. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a multifunctional welding machine that solves the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multifunctional welding machine, comprising a support table, the upper surface of the support table is slidably connected to a welding table, the upper surface of the welding table is provided with an angle adjustment mechanism, the upper surface of the welding table is provided with a rotating frame, and the rotating frame is rotatably connected to the welding table, the interior of the rotating frame is slidably connected to a sliding fixed seat, one side of the sliding fixed seat is rotatably connected to a lifting threaded rotating rod, the side surface of the rotating frame is fixedly connected to a fixed frame, the lower surface of the support table close to the welding table is provided with a rotating mechanism, the lower surface of the support table at one end away from the rotating mechanism is provided with a movable conversion mechanism, and one side of the support table is provided with a lifting mechanism.

[0006] Preferably, the angle adjustment mechanism includes an adjusting gear fixed on one side of the rotating frame, the upper surface of the welding table is fixedly connected to an angle sensor, the upper end of the welding table is rotatably connected to a first rotating shaft, the outer surface of the first rotating shaft is fixedly connected to a connecting gear, the upper surface of the welding table is rotatably connected to a worm, the first rotating shaft is connected to the angle sensor, the adjusting gear and the connecting gear are meshed with each other, and the worm is transmission-connected to the connecting gear.

[0007] Preferably, the lifting mechanism includes a sliding frame fixed to the lower end of the side surface of the supporting table, the sliding frame is internally slidably connected to a moving wheel, the upper surface of the moving wheel is fixedly connected to a lifting motor, the output shaft of the lifting motor is fixedly connected to a lifting threaded rod, the outer surface of the lifting threaded rod is threadedly connected to the lifting rod, the top end of the lifting rod is rotatably connected to a rotating block, and the rotating block is internally slidably connected to a welding machine.

[0008] Preferably, the movement conversion mechanism includes a first movable threaded rod rotatably connected to the inside of the support table, the outer surface of the first movable threaded rod is fixedly connected to the first trapezoidal gear, the lower surface of the support table is fixedly connected to the power motor and the telescopic cylinder, the output shaft of the power motor is fixedly connected to the insertion rod, the outer surface of the insertion rod is slidably connected to the sleeve, one side of the sleeve is fixedly connected to the third rotating shaft, the outer surface of the third rotating shaft is fixedly connected to the second trapezoidal gear and the third trapezoidal gear, the outer surface of the third rotating shaft is rotatably connected to the pulling block, the lower surface of the support table is fixedly connected to the telescopic cylinder, and the other end of the telescopic cylinder is connected to the pulling block.

[0009] Preferably, the support table is internally rotatably connected with a fourth trapezoidal gear and a second movable threaded rod, the support table is internally fixedly connected with a limiting rod, the outer surface of the second movable threaded rod is transmission-connected with a transmission belt, and the outer surface of the second movable threaded rod is threadedly connected with a movable block.

[0010] Preferably, the limit rod is slidably connected inside the moving block, and the fourth trapezoidal gear and the second moving threaded rod are connected through a transmission belt transmission, the first trapezoidal gear and the second trapezoidal gear are meshed, and the third trapezoidal gear and the fourth trapezoidal gear are meshed.

[0011] Preferably, the rotating mechanism includes a moving seat rotatably connected to the outer surface of the first moving threaded rod, the upper surface of the moving seat is rotatably connected to the second rotating shaft, the outer surface of the second rotating shaft is fixedly connected to a rotating gear, the top of the second rotating shaft is fixedly connected to the welding table, the lower surface of the support table is fixedly connected to a rotating motor, the output shaft of the rotating motor is fixedly connected to a transmission gear, and the rotating gear and the transmission gear are meshingly matched.

[0012] Preferably, the welding table is internally slidably connected to a first fixing device, a first welding plate is placed on the upper surface of the welding table, the sliding fixing seat is internally slidably connected to a second fixing device, and a second welding plate is placed on the side surface of the sliding fixing seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When welding two steel plates, the present invention fixes the second welding plate and the first welding plate on the sliding fixing seat and the welding table by means of the first fixing device and the second fixing device, and then drives the connecting gear to rotate by rotating the worm, and the connecting gear drives the adjusting gear meshing with the connecting gear to rotate, and drives the rotating frame to rotate by the adjusting gear, so as to achieve the effect of adjusting the angle between the two steel plates. At the same time, when the angle of the rotating frame changes, the angle change is transmitted to the main controller through the angle sensor, and the controller controls the lifting rod to move up and down, and controls the angle change of the rotating block at the same time, so that the welding machine can be moved to a suitable position during welding;

[0015] 2. When the power motor drives the third rotating shaft to rotate, the second trapezoidal gear drives the first trapezoidal gear to rotate, thereby causing the first trapezoidal gear to drive the first movable threaded rod to rotate, so that the movable seat threadedly connected to the outer surface of the first movable threaded rod drives the welding table to move to one end of the welding machine, and then the pulling block and the third rotating shaft are pulled by starting the telescopic cylinder, so that the second trapezoidal gear is disengaged from the meshing with the first trapezoidal gear, and the third trapezoidal gear is meshed with the fourth trapezoidal gear, and then the fourth trapezoidal gear drives the second movable threaded rod to rotate through the transmission belt, so that the power motor drives the second movable threaded rod to rotate, so that the movable block threadedly connected to the outer surface of the second movable threaded rod moves left and right, so as to achieve the effect of welding two steel plates from left to right;

[0016] 3. After welding one side of the two steel plates, the present invention loosens the second fixing device fixing the second welding plate and rotates the lifting threaded rotary rod to lift the sliding fixing seat upward, so that the place on the other side of the two steel plates that needs to be welded is exposed, and then the rotating motor is started to drive the transmission gear to rotate, and then the rotating gear meshing with the transmission gear is driven to rotate, and the second rotating shaft and the welding table at the upper end of the second rotating shaft are driven to rotate through the rotating gear, thereby achieving the effect of flipping the welding table. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a multifunctional welding machine proposed by the present invention;

[0018] Figure 2 A schematic diagram of a multifunctional welding machine from a first perspective proposed by the present invention;

[0019] Figure 3 A multifunctional welding machine proposed by the present invention Figure 2 A magnified image of point A;

[0020] Figure 4 A side sectional view of a multifunctional welding machine proposed by the present invention;

[0021] Figure 5 A schematic diagram of the transmission conversion structure of a multifunctional welding machine proposed by the present invention;

[0022] Figure 6 A multifunctional welding machine proposed by the present invention Figure 5 The enlarged view of point B;

[0023] Figure 7 A schematic diagram of the transmission structure of a multifunctional welding machine proposed by the present invention;

[0024] Figure 8 A schematic diagram of a second welding structure of a multifunctional welding machine proposed by the present invention;

[0025] Fig. 9 This is a schematic diagram of the second gap welding of a multifunctional welding machine proposed in the present invention.

[0026] Legend:

[0027] 1. Support table; 2. Lifting mechanism; 200. Sliding frame; 201. Moving wheel; 202. Lifting motor; 203. Lifting threaded rod; 204. Lifting rod; 205. Moving block; 206. Rotating block; 207. Welding machine; 3. Angle adjustment mechanism; 301. Adjusting gear; 302. First rotating shaft; 303. Angle sensor; 304. Connecting gear; 305. Worm; 4. Rotating mechanism; 400. Moving seat; 401. Second rotating shaft; 402. Rotating gear; 403. Rotating motor; 404. Transmission gear; 5. Moving conversion mechanism; 500. First moving shaft Moving threaded rod; 501, first trapezoidal gear; 502, power motor; 503, plug rod; 504, sleeve; 505, third rotating shaft; 506, second trapezoidal gear; 507, third trapezoidal gear; 508, pulling block; 509, telescopic cylinder; 510, fourth trapezoidal gear; 511, second moving threaded rod; 512, limit rod; 513, transmission belt; 6, rotating frame; 7, sliding fixed seat; 8, first fixing device; 9, second fixing device; 10, second welding plate; 11, first welding plate; 12, welding table; 13, fixing frame; 14, lifting threaded rotating rod. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figure 1-Figure 9 A multifunctional welding machine shown in the figure comprises a supporting table 1, the upper surface of the supporting table 1 is slidably connected to a welding table 12, the upper surface of the welding table 12 is provided with an angle adjustment mechanism 3, the upper surface of the welding table 12 is provided with a rotating frame 6, and the rotating frame 6 is rotatably connected to the welding table 12, the interior of the rotating frame 6 is slidably connected to a sliding fixed seat 7, one side of the sliding fixed seat 7 is rotatably connected to a lifting threaded rotating rod 14, the side surface of the rotating frame 6 is fixedly connected to a fixed frame 13, the lower surface of the supporting table 1 close to the welding table 12 is provided with a rotating mechanism 4, the lower surface of the supporting table 1 at one end away from the rotating mechanism 4 is provided with a moving conversion mechanism 5, a lifting mechanism 2 is provided on one side of the supporting table 1, the angle adjustment mechanism 3 comprises an adjusting gear 301 fixed to one side of the rotating frame 6, the upper surface of the welding table 12 is fixedly connected to an angle sensor 303, the upper end of the welding table 12 is rotated The first rotating shaft 302 is rotatably connected, and the outer surface of the first rotating shaft 302 is fixedly connected to the connecting gear 304. The upper surface of the welding table 12 is rotatably connected to the worm 305. The first rotating shaft 302 is connected to the angle sensor 303, and the adjusting gear 301 and the connecting gear 304 are meshed and matched. The worm 305 is transmission-connected to the connecting gear 304. The lifting mechanism 2 includes a sliding frame 200 fixed to the lower end of the side surface of the support table 1, and the internal sliding connection of the sliding frame 200 is connected to the moving wheel 201. The upper surface of the moving wheel 201 is fixedly connected to the lifting motor 202. The output shaft of the lifting motor 202 is fixedly connected to the lifting threaded rod 203, and the outer surface of the lifting threaded rod 203 is threadedly connected to the lifting rod 204. The top of the lifting rod 204 is rotatably connected to the rotating block 206, and the internal sliding connection of the rotating block 206 is connected to the welding machine 207.

[0031] Furthermore, in the process of welding the two steel plates, the second welding plate 10 and the first welding plate 11 are fixed on the sliding fixing seat 7 and the welding table 12 by means of the first fixing device 8 and the second fixing device 9, and then the connecting gear 304 is driven to rotate by rotating the worm 305, and the connecting gear 304 drives the adjusting gear 301 meshing with the connecting gear 304 to rotate, and the rotating frame 6 is driven to rotate by the adjusting gear 301, so as to achieve the effect of adjusting the angle between the two steel plates. At the same time, when the angle of the rotating frame 6 changes, the rotation angle change is transmitted to the main controller through the angle sensor 303, and the controller controls the lifting rod 204 to move up and down, and at the same time controls the angle change of the rotating block 206, so that the welding machine 207 can be moved to a suitable position during welding.

[0032] Furthermore, the mobile conversion mechanism 5 includes a first movable threaded rod 500 rotatably connected to the inside of the support table 1, the outer surface of the first movable threaded rod 500 is fixedly connected to the first trapezoidal gear 501, the lower surface of the support table 1 is fixedly connected to the power motor 502 and the telescopic cylinder 509, the output shaft of the power motor 502 is fixedly connected to the insertion rod 503, the outer surface of the insertion rod 503 is slidably connected to the sleeve 504, one side of the sleeve 504 is fixedly connected to the third rotating shaft 505, the outer surface of the third rotating shaft 505 is fixedly connected to the second trapezoidal gear 506 and the third trapezoidal gear 507, the outer surface of the third rotating shaft 505 is rotatably connected to the pulling block 508, the lower surface of the support table 1 is fixedly connected to the telescopic cylinder 509, The telescopic cylinder 509 is connected to the pulling block 508 at the other end. The fourth trapezoidal gear 510 and the second movable threaded rod 511 are rotatably connected inside the support table 1. The limiting rod 512 is fixedly connected inside the support table 1. The outer surface of the second movable threaded rod 511 is connected to the transmission belt 513. The outer surface of the second movable threaded rod 511 is threadedly connected to the moving block 205. The limiting rod 512 is slidably connected inside the moving block 205. The fourth trapezoidal gear 510 and the second movable threaded rod 511 are connected to each other through the transmission belt 513. The first trapezoidal gear 501 and the second trapezoidal gear 506 are meshed and matched. The third trapezoidal gear 507 and the fourth trapezoidal gear 510 are meshed and matched.

[0033] Furthermore, when welding two steel plates, when the power motor 502 drives the third rotating shaft 505 to rotate, the second trapezoidal gear 506 drives the first trapezoidal gear 501 to rotate, thereby causing the first trapezoidal gear 501 to drive the first movable threaded rod 500 to rotate, so that the movable seat 400 threadedly connected to the outer surface of the first movable threaded rod 500 drives the welding table 12 to move to one end of the welding machine 207, and then the pulling block 508 and the third rotating shaft 505 are pulled by starting the telescopic cylinder 509, so that the second trapezoidal gear 506 is disengaged from the meshing with the first trapezoidal gear 501, and the third trapezoidal gear 507 is meshed with the fourth trapezoidal gear 510, and then the fourth trapezoidal gear 510 drives the second movable threaded rod 511 to rotate through the transmission belt 513, so that the power motor 502 can drive the second movable threaded rod 511 to rotate, so that the movable block 205 threadedly connected to the outer surface of the second movable threaded rod 511 moves left and right, so as to achieve the effect of welding two steel plates from left to right.

[0034] The rotating mechanism 4 includes a moving seat 400 rotatably connected to the outer surface of the first moving threaded rod 500, the upper surface of the moving seat 400 is rotatably connected to the second rotating shaft 401, the outer surface of the second rotating shaft 401 is fixedly connected to the rotating gear 402, the top of the second rotating shaft 401 is fixedly connected to the welding table 12, the lower surface of the support table 1 is fixedly connected to the rotating motor 403, the output shaft of the rotating motor 403 is fixedly connected to the transmission gear 404, the rotating gear 402 and the transmission gear 404 are meshed together, the inside of the welding table 12 is slidably connected to the first fixing device 8, the upper surface of the welding table 12 is placed with a first welding plate 11, the inside of the sliding fixed seat 7 is slidably connected to the second fixing device 9, and the side surface of the sliding fixed seat 7 is placed with a second welding plate 10.

[0035] After welding one side of the two steel plates, loosen the second fixing device 9 fixing the second welding plate 10, rotate the lifting threaded rotary rod 14 to lift the sliding fixing seat 7 upward, so that the place on the other side of the two steel plates that needs to be welded is exposed, and then start the rotating motor 403 to drive the transmission gear 404 to rotate, and then drive the rotating gear 402 engaged with the transmission gear 404 to rotate, and drive the second rotating shaft 401 and the welding table 12 at the upper end of the second rotating shaft 401 to rotate through the rotating gear 402, thereby achieving the effect of flipping the welding table 12.

[0036] Working principle:

[0037] When it is necessary to weld two steel plates, when welding an L-shaped plate, first lower the sliding fixing seat 7 to the bottom, fix the second welding plate 10 and the first welding plate 11 on the sliding fixing seat 7 and the welding table 12 through the first fixing device 8 and the second fixing device 9, and then start the power motor 502 to drive the first trapezoidal gear 501 to rotate, and then the first trapezoidal gear 501 drives the first movable threaded rod 500 to rotate, so that the movable seat 400 threadedly connected to the outer surface of the first movable threaded rod 500 moves to a suitable position on the side where the welding machine 207 is provided, and then the third rotating shaft 505 is pulled by starting the telescopic cylinder 509 to make the third trapezoidal gear 507 and the fourth trapezoidal gear 510 mesh, and then the second movable threaded rod is driven by the power motor 502. 511 rotates, so that the moving block 205 threadedly connected to the outer surface of the second moving threaded rod 511 moves, so that the L-shaped plate can be welded from left to right. After welding one side, the third rotating shaft 505 is pushed to move by the telescopic cylinder 509, so that the second trapezoidal gear 506 and the first trapezoidal gear 501 are meshed, and then the first moving threaded rod 500 is driven to rotate by the power motor 502, so that the moving seat 400 moves to the rotating gear 402 and meshes with the transmission gear 404, and then the rotating motor 403 is started to drive the second rotating shaft 401 and the welding table 12 to rotate, and then the fixed second fixing device 9 is loosened, and the sliding fixing seat 7 is lifted upward, so that the welding table 12 can be turned over and then the other side of the welding gap is welded;

[0038] When welding a T-shaped plate, the sliding fixing seat 7 is lifted to a height having the same thickness as the first welding plate 11, and then the second welding plate 10 and the first welding plate 11 are fixed on the welding table 12 and the sliding fixing seat 7. The above steps can achieve the effect of welding the T-shaped plate. When welding, when it is necessary to adjust different welding angles of the second welding plate 10, the connecting gear 304 and the adjusting gear 301 are driven to rotate by rotating the worm 305, and then the rotating frame 6 is driven to rotate by the adjusting gear 301, so as to achieve the effect of adjusting the welding angle between the two steel plates. At the same time, when adjusting the angle of the rotating frame 6, the connecting gear 304 and the adjusting gear 301 are driven to rotate by the adjusting gear 301. The gear 304 drives the first rotating shaft 302 to rotate, thereby transmitting the rotation angle information to the controller through the first rotating shaft 302, and the controller controls the start of the lifting motor 202 to control the lifting and lowering of the lifting rod 204 and the rotation angle of the rotating block 206. At the same time, when the moving block 205 moves, the lifting rod 204 will also be driven to move by the moving block 205. When the lifting rod 204 is lifted or lowered, the lifting rod 204 will move inside the moving block 205. When the angle between the two plates becomes smaller, the height of the welding machine 207 will drop, so as not to collide with the second fixing device 9 and the second welding plate 10.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional welding machine, comprising a support table (1), characterized in that: The upper surface of the support table (1) is slidably connected to a welding table (12), the upper surface of the welding table (12) is provided with an angle adjustment mechanism (3), the upper surface of the welding table (12) is provided with a rotating frame (6), and the rotating frame (6) is rotatably connected to the welding table (12), the interior of the rotating frame (6) is slidably connected to a sliding fixed seat (7), one side of the sliding fixed seat (7) is rotatably connected to a lifting threaded rotating rod (14), the side surface of the rotating frame (6) is fixedly connected to a fixed frame (13), the lower surface of the support table (1) close to the welding table (12) is provided with a rotating mechanism (4), the lower surface of the support table (1) at one end away from the rotating mechanism (4) is provided with a moving conversion mechanism (5), and one side of the support table (1) is provided with a lifting mechanism (2); The mobile conversion mechanism (5) comprises a first movable threaded rod (500) rotatably connected to the inside of the support table (1); the outer surface of the first movable threaded rod (500) is fixedly connected to a first trapezoidal gear (501); the lower surface of the support table (1) is fixedly connected to a power motor (502) and a telescopic cylinder (509); an insertion rod (503) is fixedly connected to the output shaft of the power motor (502); the outer surface of the insertion rod (503) is slidably connected to a sleeve (504); one side of the sleeve (504) is fixedly connected to a third rotating shaft (505); the outer surface of the third rotating shaft (505) is fixedly connected to a second trapezoidal gear (506) and a third trapezoidal gear (507); the outer surface of the third rotating shaft (505) is rotatably connected to a pulling block (508); the lower surface of the support table (1) is fixedly connected to a telescopic cylinder (509), and the other end of the telescopic cylinder (509) is connected to the pulling block (508); The support table (1) is internally rotatably connected to a fourth trapezoidal gear (510) and a second movable threaded rod (511); the support table (1) is internally fixedly connected to a limit rod (512); the outer surface of the second movable threaded rod (511) is transmission-connected to a transmission belt (513); and the outer surface of the second movable threaded rod (511) is threadedly connected to a movable block (205); The angle adjustment mechanism (3) comprises an adjustment gear (301) fixed to one side of the rotating frame (6); an angle sensor (303) is fixedly connected to the upper surface of the welding table (12); a first rotating shaft (302) is rotatably connected to the upper end of the welding table (12); a connecting gear (304) is fixedly connected to the outer surface of the first rotating shaft (302); a worm (305) is rotatably connected to the upper surface of the welding table (12); the first rotating shaft (302) is connected to the angle sensor (303); the adjustment gear (301) and the connecting gear (304) are meshed and matched; and the worm (305) and the connecting gear (304) are transmission-connected; The lifting mechanism (2) comprises a sliding frame (200) fixed to the lower end of the side surface of the support table (1); the sliding frame (200) is slidably connected to a moving wheel (201) inside; the upper surface of the moving wheel (201) is fixedly connected to a lifting motor (202); the output shaft of the lifting motor (202) is fixedly connected to a lifting threaded rod (203); the outer surface of the lifting threaded rod (203) is threadedly connected to a lifting rod (204); the top end of the lifting rod (204) is rotatably connected to a rotating block (206); and the inside of the rotating block (206) is slidably connected to a welding machine (207); The limiting rod (512) is slidably connected inside the moving block (205), and the fourth trapezoidal gear (510) and the second moving threaded rod (511) are transmission-connected via a transmission belt (513), the first trapezoidal gear (501) and the second trapezoidal gear (506) are meshed, and the third trapezoidal gear (507) and the fourth trapezoidal gear (510) are meshed; The rotating mechanism (4) comprises a moving seat (400) rotatably connected to the outer surface of the first moving threaded rod (500); the upper surface of the moving seat (400) is rotatably connected to a second rotating shaft (401); the outer surface of the second rotating shaft (401) is fixedly connected to a rotating gear (402); the top end of the second rotating shaft (401) is fixedly connected to the welding table (12); the lower surface of the support table (1) is fixedly connected to a rotating motor (403); the output shaft of the rotating motor (403) is fixedly connected to a transmission gear (404); the rotating gear (402) and the transmission gear (404) are meshingly matched; The welding platform (12) is internally slidably connected to a first fixing device (8), a first welding plate (11) is placed on the upper surface of the welding platform (12), the sliding fixing seat (7) is internally slidably connected to a second fixing device (9), and a second welding plate (10) is placed on the side surface of the sliding fixing seat (7).

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