A ship fitting welding device with protective structure

Abstract

The present invention discloses a ship accessory welding device with a protective structure, which belongs to the technical field of ship accessory welding, and comprises an upper box device, which is used to protect the welding process, a lower box device is arranged on the upper box device, which is used to weld the ship accessory plate, and a clamping device is arranged on the lower box device, which is used to clamp the ship accessory plate to be welded. The upper box device arranged in the present invention can isolate the clamping device and the welding gun from the outside when the welding device is in operation, and discharge the gas through the dust exhaust pipe, thereby improving safety; the clamping device arranged in the present invention can reliably clamp the ship accessory to be welded, and dock and adjust the height of the accessory, cooperate with the welding gun for full-automatic welding, and the degree of automation is high; the rotation of the rotating wheel arranged in the present invention will drive the welding gun to swing back and forth continuously during the welding operation, which can effectively improve the welding quality.

Description

Technical Field

[0001] The invention relates to the technical field of ship fitting welding, and in particular to a ship fitting welding device with a protective structure. Background Art

[0002] The welding of ship parts is a very critical part of the shipbuilding and maintenance process, involving the connection and repair of various materials and components. Ship parts are usually made of various metal materials, such as carbon steel, stainless steel, aluminum alloy, etc. In the prior art, the welding of ship parts is mainly fixed by a clamp to fix the parts to be welded, and then the parts are welded by manual or automatic welding machines. The welding slag and dust generated during the welding process will cause harm to the environment or personnel, and the welding workplace needs to be protected. At the same time, the alignment of the welded parts needs to be done manually, and the degree of automation is low. In addition, the welding quality can be improved by swinging the welding gun back and forth slightly during the welding process. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a ship accessory welding device with a protective structure, including an upper box device, the upper box device includes an upper box body, the upper box device is used to protect the welding process, the upper box device is provided with a lower box device, the lower box device includes a bottom box, the bottom box is fixedly installed on the upper box body, the lower box device is used to weld the ship accessory plate, the lower box device is provided with a clamping device, the clamping device includes a sliding frame, the sliding frame is slidably installed on the bottom box, and the clamping device is used to clamp the ship accessory plate to be welded.

[0004] Furthermore, the upper box device includes a wheel column fixedly mounted on the upper box body, a welding wire wheel is rotatably mounted on the wheel column, a dust exhaust pipe is fixedly mounted on the upper box body, and a fan is arranged in the dust exhaust pipe.

[0005] Furthermore, a protective mechanism is provided on the upper box body, and the protective mechanism includes a protective motor fixedly installed on the upper box body, a motor bevel gear is fixedly installed on the motor shaft of the protective motor, two lifting screws are rotatably installed on the upper box body, a lifting transmission wheel is fixedly installed on the lifting screw, and a screw bevel gear is also fixedly installed on the lifting screw close to the protective motor side, a lifting transmission belt is wrapped around the two lifting transmission wheels, the screw bevel gear is meshed with the motor bevel gear, and a protective cover is slidably installed on the upper box body, and the protective cover and the lifting screw form a threaded transmission.

[0006] The welding wire wheel is installed on the wheel column, and the welding wire on the welding wire wheel is connected to the welding gun. As welding proceeds, the welding wire on the welding wire wheel is continuously consumed, and the welding wire wheel rotates around the wheel column.

[0007] Before the welding operation begins, the protective motor rotates to drive the motor bevel gear to rotate, thereby driving the screw bevel gear to rotate, and then driving the two lifting screws to rotate at the same time through the lifting belt, thereby driving the protective cover to descend, and the clamping device is closed by the protective cover to prevent accidents caused by splashing welding slag during the welding process. The fan exhausts the exhaust gas generated by welding from the dust exhaust pipe.

[0008] Furthermore, the clamping device includes an internal threaded sleeve fixedly mounted on the sliding frame, a track fixedly mounted on the sliding frame, an end plate fixedly mounted on the track, a traverse motor fixedly mounted on the sliding frame, a motor wheel fixedly mounted on the motor shaft of the traverse motor, a double-end screw rod rotatably mounted on the sliding frame, the threads at both ends of the double-end screw rod have opposite directions, an upper transmission wheel is fixedly mounted on the double-end screw rod, and a screw transmission belt is wrapped around the upper transmission wheel and the motor wheel.

[0009] Furthermore, two docking mechanisms are provided on the track, and the docking mechanism includes a movable plate, an outer blocking sleeve is provided between the bottom box and the end plate, an inner blocking sleeve is provided between the two movable plates, the outer blocking sleeve and the inner blocking sleeve can be retracted, an electric cylinder is fixedly installed on the movable plate, a lifting plate is fixedly installed on the top of the electric cylinder, an outer guide block is fixedly installed on the movable plate, and the lifting plate and the outer guide block are slidably installed.

[0010] Furthermore, a clamping mechanism is provided on the lifting plate, and the clamping mechanism includes a base fixedly installed on the lifting plate, an inner rotating rod is rotatably installed on the base, a manual rotating rod is rotatably installed on the inner rotating rod, a front rotating rod is rotatably installed on the base, the front rotating rod and the manual rotating rod are rotatably installed, a clamping column is slidably installed on the front rotating rod, a clamping head is fixedly installed on the clamping column, a clamping spring is provided between the clamping column and the front rotating rod, and the clamping head clamps the ship accessory plate on the lifting plate.

[0011] When in use, lift the manual rotating rod to drive the inner rotating rod to rotate around the base, thereby driving the front rotating rod to rotate around the base, so that the clamping head is lifted, and the ship accessory plate is placed on the lifting plate, and then the manual rotating rod is pressed down to drive the front rotating rod to rotate, thereby driving the clamping head to contact the ship accessory plate, and then the front rotating rod continues to move downward, driving the clamping column to press the front rotating rod to slide, and the clamping spring is compressed. The clamping spring presses the clamping head and the ship accessory plate. When the front rotating rod is parallel to the ship accessory plate, the locking is completed.

[0012] The extension and retraction of the electric cylinder can drive the lifting plate to rise and fall along the outer guide block, thereby adjusting the height of the ship accessory plate to facilitate the subsequent contact between the ship accessory plate and the welding gun. The rotation of the traverse motor drives the motor wheel to rotate, and the upper transmission wheel and the double-end lead screws are driven to rotate through the lead screw drive belt, thereby driving the movable plate to slide inward along the track at the same time, so that the two ship accessory plates can be docked.

[0013] Furthermore, the lower box device includes a connecting plate fixedly mounted on the upper box body, a bottom motor is fixedly mounted on the bottom box, a screw motor wheel is fixedly mounted on the motor shaft of the bottom motor, a left screw is fixedly mounted on the screw motor wheel, the left screw is rotatably mounted with the bottom box, an internal threaded sleeve and the left screw form a threaded transmission, a right screw is rotatably mounted on the bottom box, a right transmission wheel and a right front wheel are fixedly mounted on the right screw, the right screw and the internal threaded sleeve form a threaded transmission, a bottom horizontal transmission belt is wrapped around the right transmission wheel and the screw motor wheel, an inner transmission wheel is rotatably mounted on the bottom box, a lower transmission wheel is fixedly mounted on the inner transmission wheel, and a short transmission belt is wrapped around the inner transmission wheel and the right front wheel.

[0014] Furthermore, a rotating wheel is rotatably mounted on the connecting plate, a vertical transmission belt is wound around the rotating wheel and the lower transmission wheel, an eccentric column is fixedly mounted on the rotating wheel, a rotating column is rotatably mounted on the connecting plate, a welding gun is fixedly mounted on the rotating column, the welding gun is connected to the welding wire on the welding wire wheel, a rotating plate is fixedly mounted on the rotating column, a slide groove is arranged on the rotating plate, and the eccentric column slides in the slide groove.

[0015] The rotation of the bottom motor drives the screw motor wheel and the left screw to rotate, and drives the right drive wheel, the right front wheel and the right screw to rotate through the bottom horizontal transmission belt, thereby driving the internal threaded sleeve and the sliding frame to move toward the welding gun, and the two ship accessory plates are welded by the welding gun. At the same time, the rotation of the right front wheel drives the inner drive wheel to rotate through the short transmission belt, thereby driving the lower transmission wheel to rotate, and driving the rotating wheel to rotate through the vertical transmission belt, thereby driving the rotating plate to swing back and forth slightly through the eccentric column and the slide groove, thereby driving the rotating column and the welding gun to swing back and forth slightly when welding the ship accessory plate, thereby improving the welding quality. After welding is completed, the electric cylinder shrinks, driving the lifting plate and the ship accessory plate to descend, and then the bottom motor rotates to drive the sliding frame and the internal threaded sleeve back to the initial position, the protective cover rises, and the manual rotating rod is manually opened to remove the welded ship accessory plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) the upper box device provided in the present invention can isolate the clamping device and the welding gun from the outside when the welding device is in operation, and discharge the gas through the dust exhaust pipe, thereby improving safety; (2) the clamping device provided in the present invention can reliably clamp the ship accessories to be welded, and dock and adjust the height of the accessories, and cooperate with the welding gun to perform fully automatic welding, with a high degree of automation; (3) the rotation of the rotating wheel provided in the present invention will drive the welding gun to swing back and forth continuously during the welding operation, which can effectively improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0018] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0019] Figure 3 The structure of the upper box device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 4 The structure of the upper box device of the present invention is shown in FIG. Figure 2 .

[0021] Figure 5 The structure of the upper box device of the present invention is shown in FIG. Figure 3 .

[0022] Figure 6 The structure of the clamping device of the present invention is shown in FIG. Figure 1 .

[0023] Figure 7 The structure of the clamping device of the present invention is shown in FIG. Figure 2 .

[0024] Figure 8 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0025] Fig. 9 The structure of the lower box device of the present invention is shown in FIG. Figure 1 .

[0026] Fig.10 The structure of the lower box device of the present invention is shown in FIG. Figure 2 .

[0027] Fig.11 The structure of the lower box device of the present invention is shown in FIG. Figure 3 .

[0028] Figure numbers: 101-upper box; 102-protective motor; 103-dust exhaust pipe; 104-motor bevel gear; 105-screw bevel gear; 106-lifting transmission belt; 107-lifting transmission wheel; 108-wheel column; 109-wire wheel; 110-protective cover; 111-lifting screw; 112-fan; 201-sliding frame; 202-internal thread sleeve; 203-track; 204-external blocking sleeve; 205-internal blocking sleeve; 206-traverse motor; 207-motor wheel; 208-screw transmission belt; 209-upper transmission wheel; 210-double-end screw; 211-movable plate; 212-external guide block; 213-lifting plate; 214-ship accessories Plate; 215-base; 216-manual rotating rod; 217-inner rotating rod; 218-front rotating rod; 219-clamping column; 220-clamping head; 221-clamping spring; 222-electric cylinder; 223-end plate; 301-bottom box; 302-connecting plate; 303-welding gun; 304-rotating column; 305-rotating plate; 306-rotating wheel; 307-slide; 308-eccentric column; 309-vertical transmission belt; 310-bottom motor; 311-screw motor wheel; 312-left screw; 313-bottom horizontal transmission belt; 314-right transmission wheel; 315-right screw; 316-right front wheel; 317-short transmission belt; 318-inner transmission wheel; 319-lower transmission wheel. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Example: Reference Figure 1-Figure 11 A ship accessory welding device with a protective structure includes an upper box device, the upper box device includes an upper box body 101, the upper box device is used to protect the welding process, the upper box device is provided with a lower box device, the lower box device includes a bottom box 301, the bottom box 301 is fixedly installed on the upper box body 101, the lower box device is used to weld the ship accessory plate, the lower box device is provided with a clamping device, the clamping device includes a sliding frame 201, the sliding frame 201 is slidably installed on the bottom box 301, and the clamping device is used to clamp the ship accessory plate to be welded.

[0031] like Figure 3-Figure 5 As shown, the upper box device includes a wheel column 108 fixedly mounted on the upper box body 101, on which a welding wire wheel 109 is rotatably mounted, and a dust exhaust pipe 103 is fixedly mounted on the upper box body 101, in which a fan 112 is arranged.

[0032] like Figure 3-Figure 5As shown, a protection mechanism is arranged on the upper box body 101, and the protection mechanism includes a protection motor 102 fixedly mounted on the upper box body 101, and a motor bevel gear 104 is fixedly mounted on the motor shaft of the protection motor 102, and two lifting screws 111 are rotatably mounted on the upper box body 101, and a lifting transmission wheel 107 is fixedly mounted on the lifting screw 111, and a screw bevel gear 105 is also fixedly mounted on the lifting screw 111 close to the side of the protection motor 102, and a lifting transmission belt 106 is wound around the two lifting transmission wheels 107, and the screw bevel gear 105 is meshed with the motor bevel gear 104, and a protection cover 110 is slidably mounted on the upper box body 101, and the protection cover 110 and the lifting screw 111 form a threaded transmission.

[0033] The welding wire wheel 109 is installed on the wheel column 108, and the welding wire on the welding wire wheel 109 is connected to the welding gun 303. As welding proceeds, the welding wire on the welding wire wheel 109 is continuously consumed, and the welding wire wheel 109 rotates around the wheel column 108.

[0034] Before the welding operation begins, the protective motor 102 rotates to drive the motor bevel gear 104 to rotate, thereby driving the screw bevel gear 105 to rotate, thereby driving the two lifting screws 111 to rotate simultaneously through the lifting transmission belt 106, thereby driving the protective cover 110 to descend, and the clamping device is closed by the protective cover 110 to prevent accidents caused by splashing welding slag during the welding process, and the fan 112 exhausts the exhaust gas generated by welding from the dust exhaust pipe 103.

[0035] like Figure 6-Figure 8 As shown, the clamping device includes an internal threaded sleeve 202 fixedly mounted on a sliding frame 201, a track 203 fixedly mounted on the sliding frame 201, an end plate 223 fixedly mounted on the track 203, a traverse motor 206 fixedly mounted on the sliding frame 201, a motor wheel 207 fixedly mounted on the motor shaft of the traverse motor 206, a double-end lead screw 210 rotatably mounted on the sliding frame 201, the threads at both ends of the double-end lead screw 210 are in opposite directions, an upper transmission wheel 209 is fixedly mounted on the double-end lead screw 210, and a lead screw transmission belt 208 is wound around the upper transmission wheel 209 and the motor wheel 207.

[0036] like Figure 6-Figure 8 As shown, two docking mechanisms are arranged on the track 203, and the docking mechanism includes a movable plate 211, an outer blocking sleeve 204 is arranged between the bottom box 301 and the end plate 223, an inner blocking sleeve 205 is arranged between the two movable plates 211, the outer blocking sleeve 204 and the inner blocking sleeve 205 can be extended and retracted, an electric cylinder 222 is fixedly installed on the movable plate 211, a lifting plate 213 is fixedly installed on the top of the electric cylinder 222, an outer guide block 212 is fixedly installed on the movable plate 211, and the lifting plate 213 and the outer guide block 212 are slidably installed.

[0037] like Figure 6-Figure 8As shown, a clamping mechanism is provided on the lifting plate 213, and the clamping mechanism includes a base 215 fixedly installed on the lifting plate 213, an inner rotating rod 217 is rotatably installed on the base 215, a manual rotating rod 216 is rotatably installed on the inner rotating rod 217, a front rotating rod 218 is rotatably installed on the base 215, the front rotating rod 218 and the manual rotating rod 216 are rotatably installed, a clamping column 219 is slidably installed on the front rotating rod 218, a clamping head 220 is fixedly installed on the clamping column 219, a clamping spring 221 is provided between the clamping column 219 and the front rotating rod 218, and the clamping head 220 clamps the ship accessory plate 214 on the lifting plate 213.

[0038] When in use, the manual rotating rod 216 is lifted to drive the inner rotating rod 217 to rotate around the base 215, thereby driving the front rotating rod 218 to rotate around the base 215, so that the clamping head 220 is lifted, and the ship accessory plate 214 is placed on the lifting plate 213, and then the manual rotating rod 216 is pressed down to drive the front rotating rod 218 to rotate, thereby driving the clamping head 220 to contact the ship accessory plate 214, and then the front rotating rod 218 continues to move downward, driving the clamping column 219 to press the front rotating rod 218 to slide, and the clamping spring 221 is compressed. The clamping spring 221 causes the clamping head 220 to be pressed against the ship accessory plate 214. When the front rotating rod 218 is parallel to the ship accessory plate 214, the locking is completed.

[0039] The extension and retraction of the electric cylinder 222 can drive the lifting plate 213 to rise and fall along the outer guide block 212, thereby adjusting the height of the ship accessory plate 214, so as to facilitate the subsequent contact between the ship accessory plate 214 and the welding gun 303. The rotation of the traverse motor 206 drives the motor wheel 207 to rotate, and drives the upper transmission wheel 209 and the double-end screw 210 to rotate through the screw drive belt 208, thereby driving the movable plate 211 to slide inward along the track 203 at the same time. The outer blocking sleeve 204 is stretched and the inner blocking sleeve 205 is compressed to receive the welding slag to prevent the welding slag from affecting the rotation of the double-end screw 210, so that the two ship accessory plates 214 can be docked.

[0040] like Figure 9-11As shown, the lower box device includes a connecting plate 302 fixedly mounted on the upper box body 101, a bottom motor 310 is fixedly mounted on the bottom box 301, a screw motor wheel 311 is fixedly mounted on the motor shaft of the bottom motor 310, a left screw 312 is fixedly mounted on the screw motor wheel 311, the left screw 312 is rotatably mounted with the bottom box 301, the internal threaded sleeve 202 and the left screw 312 form a threaded transmission, a right screw 315 is rotatably mounted on the bottom box 301, a right transmission wheel 314 and a right front wheel 316 are fixedly mounted on the right screw 315, the right screw 315 and the internal threaded sleeve 202 form a threaded transmission, a bottom horizontal transmission belt 313 is wound around the right transmission wheel 314 and the screw motor wheel 311, an inner transmission wheel 318 is rotatably mounted on the bottom box 301, a lower transmission wheel 319 is fixedly mounted on the inner transmission wheel 318, and a short transmission belt 317 is wound around the inner transmission wheel 318 and the right front wheel 316.

[0041] like Figure 9-11 As shown, a rotating wheel 306 is rotatably mounted on the connecting plate 302, and a vertical transmission belt 309 is wound around the rotating wheel 306 and the lower transmission wheel 319, an eccentric column 308 is fixedly mounted on the rotating wheel 306, a rotating column 304 is rotatably mounted on the connecting plate 302, a welding gun 303 is fixedly mounted on the rotating column 304, the welding gun 303 is connected to the welding wire on the welding wire wheel 109, a rotating plate 305 is fixedly mounted on the rotating column 304, a slide groove 307 is provided on the rotating plate 305, and the eccentric column 308 slides in the slide groove 307.

[0042] The bottom motor 310 rotates to drive the screw motor wheel 311 and the left screw 312 to rotate, and drives the right drive wheel 314, the right front wheel 316 and the right screw 315 to rotate through the bottom horizontal transmission belt 313, thereby driving the internal thread sleeve 202 and the sliding frame 201 to move toward the welding gun 303, and the two ship accessory plates 214 are welded through the welding gun 303. At the same time, the right front wheel 316 rotates to drive the inner drive wheel 318 to rotate through the short transmission belt 317, thereby driving the lower transmission wheel 319 to rotate, and driving the rotating wheel 306 to rotate through the vertical transmission belt 309. , thereby driving the rotating plate 305 to swing slightly back and forth through the eccentric column 308 and the slide groove 307, thereby driving the rotating column 304 and the welding gun 303 to swing slightly back and forth when welding the ship accessory plate 214, thereby improving the welding quality. After the welding is completed, the electric cylinder 222 contracts, driving the lifting plate 213 and the ship accessory plate 214 to descend, and then the bottom motor 310 rotates to drive the sliding frame 201 and the internal threaded sleeve 202 to return to the initial position, the protective cover 110 rises, and the manual rotating rod 216 is manually opened to remove the welded ship accessory plate 214.

[0043] The working principle of a ship accessory welding device with a protective structure disclosed in the present invention is: when in use, the manual rotating rod 216 is lifted, driving the inner rotating rod 217 to rotate around the base 215, thereby driving the front rotating rod 218 to rotate around the base 215, so that the clamping head 220 is lifted, and the ship accessory plate 214 is placed on the lifting plate 213, and then the manual rotating rod 216 is pressed down to drive the front rotating rod 218 to rotate, thereby driving the clamping head 220 to contact the ship accessory plate 214, and then the front rotating rod 218 continues to move downward, driving the clamping column 219 to press the front rotating rod 218 to slide, and the clamping spring 221 is compressed, and the clamping spring 221 causes the clamping head 220 to be pressed against the ship accessory plate 214. When the front rotating rod 218 is parallel to the ship accessory plate 214, the locking is completed. The electric cylinder 222 can be extended and retracted to drive the lifting plate 213 to move up and down along the outer guide block 212, thereby adjusting the height of the ship accessory plate 214, so that the subsequent ship accessory plate 214 can contact the welding gun 303. The traverse motor 206 rotates to drive the motor wheel 207 to rotate, and drives the upper transmission wheel 209 and the double-end screw 210 to rotate through the screw transmission belt 208, thereby driving the movable plate 211 to slide inward along the track 203 at the same time, so that the two ship accessory plates 214 are docked. The protection motor 102 rotates to drive the motor bevel gear 104 to rotate, thereby driving the screw bevel gear 105 to rotate, thereby driving the two lifting screws 111 to rotate at the same time through the lifting transmission belt 106, thereby driving the protective cover 110 to descend, and the clamping device is closed by the protective cover 110 to prevent accidents caused by splashing welding slag during welding, and the fan 112 exhausts the exhaust gas generated by welding from the dust exhaust pipe 103. The bottom motor 310 rotates to drive the screw motor wheel 311 and the left screw 312 to rotate, and drives the right drive wheel 314, the right front wheel 316 and the right screw 315 to rotate through the bottom horizontal transmission belt 313, thereby driving the internal thread sleeve 202 and the sliding frame 201 to move toward the welding gun 303, and the two ship accessory plates 214 are welded through the welding gun 303. At the same time, the right front wheel 316 rotates to drive the inner drive wheel 318 to rotate through the short transmission belt 317, thereby driving the lower transmission wheel 319 to rotate, and driving the rotating wheel 306 to rotate through the vertical transmission belt 309. , thereby driving the rotating plate 305 to swing slightly back and forth through the eccentric column 308 and the slide groove 307, thereby driving the rotating column 304 and the welding gun 303 to swing slightly back and forth when welding the ship accessory plate 214, thereby improving the welding quality. After the welding is completed, the electric cylinder 222 contracts, driving the lifting plate 213 and the ship accessory plate 214 to descend, and then the bottom motor 310 rotates to drive the sliding frame 201 and the internal threaded sleeve 202 to return to the initial position, the protective cover 110 rises, and the manual rotating rod 216 is manually opened to remove the welded ship accessory plate 214.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding device for ship parts with a protective structure, comprising an upper box device, characterized in that: The upper box device comprises an upper box body (101), the upper box device is used to protect the welding process, the upper box device is provided with a lower box device, the lower box device comprises a bottom box (301), the bottom box (301) is fixedly mounted on the upper box body (101), the lower box device is used to weld the ship accessory plate, the lower box device is provided with a clamping device, the clamping device comprises a sliding frame (201), the sliding frame (201) is slidably mounted on the bottom box (301), and the clamping device is used to clamp the ship accessory plate to be welded; The upper box device comprises a wheel column (108) fixedly mounted on the upper box body (101), a welding wire wheel (109) being rotatably mounted on the wheel column (108), a dust exhaust pipe (103) being fixedly mounted on the upper box body (101), and a fan (112) being arranged in the dust exhaust pipe (103); The upper box body (101) is provided with a protection mechanism, the protection mechanism comprising a protection motor (102) fixedly mounted on the upper box body (101), a motor bevel gear (104) fixedly mounted on the motor shaft of the protection motor (102), two lifting screws (111) rotatably mounted on the upper box body (101), a lifting transmission wheel (107) fixedly mounted on the lifting screws (111), a screw bevel gear (105) fixedly mounted on the lifting screws (111) close to the protection motor (102), a lifting transmission belt (106) wound around the two lifting transmission wheels (107), the screw bevel gear (105) meshing with the motor bevel gear (104), a protection cover (110) slidably mounted on the upper box body (101), and a threaded transmission is formed between the protection cover (110) and the lifting screws (111); The clamping device comprises an internal threaded sleeve (202) fixedly mounted on a sliding frame (201), a track (203) fixedly mounted on the sliding frame (201), an end plate (223) fixedly mounted on the track (203), a traverse motor (206) fixedly mounted on the sliding frame (201), a motor wheel (207) fixedly mounted on the motor shaft of the traverse motor (206), a double-end lead screw (210) rotatably mounted on the sliding frame (201), the threads at both ends of the double-end lead screw (210) being in opposite directions, an upper transmission wheel (209) fixedly mounted on the double-end lead screw (210), and a lead screw transmission belt (208) being wound around the upper transmission wheel (209) and the motor wheel (207); Two docking mechanisms are arranged on the track (203), and the docking mechanism comprises a movable plate (211), an outer blocking sleeve (204) is arranged between the bottom box (301) and the end plate (223), an inner blocking sleeve (205) is arranged between the two movable plates (211), an electric cylinder (222) is fixedly mounted on the movable plate (211), a lifting plate (213) is fixedly mounted on the top of the electric cylinder (222), an outer guide block (212) is fixedly mounted on the movable plate (211), and the lifting plate (213) and the outer guide block (212) are slidably mounted; The lifting plate (213) is provided with a clamping mechanism, and the clamping mechanism comprises a base (215) fixedly mounted on the lifting plate (213); an inner rotating rod (217) is rotatably mounted on the base (215); a manual rotating rod (216) is rotatably mounted on the inner rotating rod (217); a front rotating rod (218) is rotatably mounted on the base (215); the front rotating rod (218) and the manual rotating rod (216) are rotatably mounted; a clamping column (219) is slidably mounted on the front rotating rod (218); a clamping head (220) is fixedly mounted on the clamping column (219); a clamping spring (221) is provided between the clamping column (219) and the front rotating rod (218); and the clamping head (220) clamps the ship accessory plate (214) on the lifting plate (213); The lower box device comprises a connecting plate (302) fixedly mounted on the upper box body (101); a bottom motor (310) is fixedly mounted on the bottom box (301); a screw motor wheel (311) is fixedly mounted on the motor shaft of the bottom motor (310); a left screw (312) is fixedly mounted on the screw motor wheel (311); the left screw (312) is rotatably mounted on the bottom box (301); the internal thread sleeve (202) and the left screw (312) form a threaded transmission; a right screw (315) is rotatably mounted on the bottom box (301); ), a right transmission wheel (314) and a right front wheel (316) are fixedly mounted on the right screw rod (315), the right screw rod (315) and the internal threaded sleeve (202) form a threaded transmission, a bottom horizontal transmission belt (313) is wound around the right transmission wheel (314) and the screw rod motor wheel (311), an inner transmission wheel (318) is rotatably mounted on the bottom box (301), a lower transmission wheel (319) is fixedly mounted on the inner transmission wheel (318), and a short transmission belt (317) is wound around the inner transmission wheel (318) and the right front wheel (316); A rotating wheel (306) is rotatably mounted on the connecting plate (302), a vertical transmission belt (309) is wound around the rotating wheel (306) and the lower transmission wheel (319), an eccentric column (308) is fixedly mounted on the rotating wheel (306), a rotating column (304) is rotatably mounted on the connecting plate (302), a welding gun (303) is fixedly mounted on the rotating column (304), the welding gun (303) is connected to the welding wire on the welding wire wheel (109), a rotating plate (305) is fixedly mounted on the rotating column (304), a sliding groove (307) is provided on the rotating plate (305), and the eccentric column (308) slides in the sliding groove (307).

Images