A yacht guard rail welding auxiliary device

Abstract

The present application relates to the technical field of yacht production, and discloses a kind of yacht guard rail welding auxiliary device, including welding table, bend guard rail, straight edge guard rail, the upper surface of the welding table is slidably connected with moving plate, the upper surface of the moving plate is fixedly connected with electric telescopic rod, the upper surface of the moving plate is provided with the first fixed mechanism of straight edge guard rail fixation, the upper surface of the welding table is provided with the second clamping mechanism of bend guard rail fixation, to reach by sliding rod first widening gear and rotating fixed disc extension fixed plate outside, then by fourth motor power wheel rotation, by power wheel second widening gear rotation, then second widening gear first tooth bar moves, moving first tooth bar first widening gear and rotating fixed disc rotation, by the rotating limit block of being set, straight edge guard rail is clamped, to reach the limiting fixation of straight edge guard rail.

Description

Technical Field

[0001] This invention relates to the field of yacht manufacturing technology, and specifically provides a welding auxiliary device for yacht protective railings. Background Technology

[0002] The yacht guardrail welding auxiliary device is a modular auxiliary equipment designed specifically for yacht guardrail welding scenarios. Its core function is to solve the pain points of low positioning accuracy of guardrail components, large welding deformation, and low operation efficiency in traditional manual welding. Before the yacht guardrail is installed with the yacht, it needs to be welded into a whole, and then the welded guardrail is installed on the yacht deck.

[0003] Patent CN 223455403 U discloses a welding auxiliary device for yacht protective railings, including a base, an end support mechanism, a strut, a locking block, a handrail, a limiting mechanism, and a connecting rod. The end support mechanism and the strut are fixedly mounted on the upper surface of the base. The locking block is fixedly mounted on the top of the strut. The handrail is locked onto the top of the locking block. The limiting mechanism is located on the upper surface of the base. The connecting rod is locked inside the limiting mechanism. The limiting mechanism includes a sleeve, a telescopic rod, an installation strip, a locking strip, a limiting tube, and a locking seat. The telescopic rod is locked onto the inner side of the top of the sleeve. After the railing is effectively positioned and installed, the connecting rod to be welded is placed on the top of the handrail and effectively positioned according to the welding position, thereby ensuring that the connecting rod is vertically welded to the surface of the handrail. The welding area is located on the front of the handrail, which is convenient for operation and can effectively improve the welding quality.

[0004] This application improves the welding auxiliary device for yacht guardrails by placing the connecting rod to be welded at the top of the handrail and effectively positioning it according to the welding position. This ensures that the connecting rod is welded vertically to the handrail surface, and the welding area is located on the front of the handrail. However, when welding the front curved railing and the straight railings on both sides of some guardrails together, it is necessary to accurately position the angle of the connection point to prevent the welding point from having an angular tilt deviation after welding, which would lead to inconvenience in later installation and affect the aesthetics after installation. Therefore, we propose a welding auxiliary device for yacht guardrails. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a welding auxiliary device for yacht protective railings, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding auxiliary device for yacht protective railings, comprising a welding table, a curved edge protective railing, and a straight edge protective railing. A movable plate is slidably connected to the upper surface of the welding table, and an electric telescopic rod is fixedly connected to the upper surface of the movable plate. A first fixing mechanism for fixing the straight edge protective railing is provided on the upper surface of the movable plate, and a second clamping mechanism for fixing the curved edge protective railing is provided on the upper surface of the welding table.

[0007] Preferably, the first fixing mechanism includes a fixing plate fixedly connected to the upper surface of the movable plate, a rotating fixing disk rotatably connected inside the fixing plate, a rotating limiting block fixedly connected to one side of the rotating fixing disk, a top plate and a fixing groove fixedly connected to one side of the fixing plate, a first limiting groove fixedly connected to one side of the fixing plate, a second toothed rod slidably connected inside the first limiting groove, and a pressure plate fixedly connected to the top end of the second toothed rod.

[0008] Preferably, a first widened gear is fixedly connected to the other side of the rotating fixed disk, a base rod is fixedly connected to one side of the fixed plate, a first toothed rod is slidably connected to the upper surface of the base rod, a first rotating rod is rotatably connected inside the fixed plate, a second widened gear is fixedly connected to the outer surface of the first rotating rod, a frame is fixedly connected to the side surface of the fixed plate, a fourth motor is fixedly connected inside the frame, a power wheel is fixedly connected to the output shaft of the fourth motor, and the power wheel meshes with the second widened gear.

[0009] Preferably, a first support plate, a second support plate, and a third support plate are fixedly connected to the upper surface of the movable plate. A sliding rod is rotatably connected to one side of the first widened gear. A first threaded rod is threadedly connected to the inside of the sliding rod. A second limiting groove is opened inside the first support plate. A first limiting rod is fixedly connected to the outer surface of the sliding rod. A worm gear is fixedly connected to the outer surface of the first threaded rod. A first motor is fixedly connected to the upper surface of the movable plate. A worm is fixedly connected to the output shaft of the first motor.

[0010] Preferably, the first widened gear meshes with the first rack, the first rack meshes with the second widened gear, the second widened gear meshes with the second rack, the first limiting rod is slidably connected inside the second limiting groove, the first rotating rod is rotatably connected inside the second support plate, the sliding rod is rotatably connected inside the first support plate, the first threaded rod is rotatably connected inside the third support plate, the worm gear meshes with the worm, and a vertical insert is provided above the moving plate. A vertical rod of the straight-edge guardrail is inserted into the outside of this vertical rod. This insert is used to position the first vertical pipe of the straight-edge guardrail.

[0011] Preferably, the second clamping mechanism includes a support block fixedly connected to the upper surface of the welding table, a sliding plate slidably connected inside the welding table, a first fixing rod and a fixing frame fixedly connected to the upper surface of the sliding plate, a first rotating wheel fixedly connected to the outer surface of the first fixing rod, and a rotating threaded rod rotatably connected inside the welding table.

[0012] Preferably, a third motor is fixedly connected to the lower surface of the welding table, a first moving block is threadedly connected to the output shaft of the third motor, a moving platform is fixedly connected to the upper surface of the first moving block, a second fixed rod is fixedly connected to the upper surface of the moving platform, and a second rotating wheel is rotatably connected to the outer surface of the second fixed rod.

[0013] Preferably, a second limiting rod is fixedly connected to the upper surface of the movable platform, a movable frame is slidably connected to the outer surface of the second limiting rod, a clamping head is fixedly connected to one side of the movable frame, a second motor is fixedly connected to the upper surface of the movable platform, a second rotating rod is fixedly connected to the output shaft of the second motor, a second moving block is threadedly connected to the outer surface of the second rotating rod, and a pulling rod is rotatably connected to one side of the second moving block.

[0014] Preferably, the rotating threaded rod is threaded inside the sliding plate, the movable frame and the second movable block are rotatably connected by a pull rod, and the first movable block is slidably connected inside the welding table.

[0015] Preferably, a support leg is fixedly connected to the lower surface of the movable plate, the welding table and the movable plate are connected by an electric telescopic rod, a support base is fixedly connected to the side surface of the welding table, a rotating platform is fixedly connected to the upper surface of the support base, and a welding head is fixedly connected to the upper surface of the rotating platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a first fixing mechanism to fix the straight-edge guardrail. After the straight-edge guardrail is placed inside the fixing groove, the first motor is started to drive the worm gear to rotate. The worm gear drives the worm wheel and the first threaded rod fixedly connected inside the worm wheel to rotate. When the first threaded rod rotates, it pushes the sliding rod threaded to the outer surface of the first threaded rod to move to both sides. This pushes the first widened gear and the rotating fixing plate to extend out of the fixing plate through the sliding rod. Then, the fourth motor drives the power wheel to rotate, which drives the second widened gear to rotate. The second widened gear then pushes the first gear rod to move. The moving first gear rod pushes the first widened gear and the rotating fixing plate to rotate. The set rotation limit block engages the straight-edge guardrail, thereby limiting and fixing the straight-edge guardrail.

[0017] 2. This invention uses a second clamping mechanism to fix the curved guardrail. First, the curved guardrail is placed above the support block. Then, the third motor is started to pull the first moving block, thereby moving the moving platform backward. When the moving platform moves, the second rotating wheel pulls the two sides of the curved guardrail towards the middle, thereby positioning the two ends of the curved guardrail and aligning the parts to be welded. Then, the clamping head fixes the positioned curved guardrail. At the same time, the second motor is started to move the second moving block. The moving second moving block adjusts the position of the clamping head by pulling the moving frame towards the middle or pushing it to the sides through the pull rod. Attached Figure Description

[0018] Figure 1 This is a front view of a welding auxiliary device for yacht protective railings proposed in this invention; Figure 2 This is a schematic diagram of the clamping mechanism structure of a welding auxiliary device for yacht protective railings proposed in this invention; Figure 3 This is a schematic diagram of the guardrail structure of a welding auxiliary device for yacht guardrails proposed in this invention; Figure 4 This is a side sectional view of a welding auxiliary device for yacht protective railings proposed in this invention; Figure 5 For the present invention Figure 4 Enlarged view of point A; Figure 6 This is a cross-sectional view of the first clamping mechanism of a welding auxiliary device for yacht protective railings proposed in this invention; Figure 7 This is a cross-sectional view of the second clamping mechanism of a welding auxiliary device for yacht protective railings proposed in this invention; Figure 8 This is a schematic diagram of the first clamping mechanism of a welding auxiliary device for yacht protective railings proposed in this invention.

[0019] Legend: 1. Welding table; 2. First fixing mechanism; 201. Fixing plate; 202. Rotating fixing disk; 203. Rotation limit block; 204. First widened gear; 205. Base rod; 206. First rack; 207. First rotating rod; 208. Second widened gear; 209. First limiting groove; 210. Second rack; 211. Pressure plate; 212. First support plate; 213. Second support plate; 214. Sliding rod; 215. First threaded rod; 216. Second limiting groove; 217. First limiting rod; 218. Third support plate; 219. Worm gear; 220. First motor; 221. Worm; 222. Top plate; 223. Fixing groove; 224. Frame; 225. Fourth motor ; 226. Power wheel; 3. Second clamping mechanism; 300. Rotating threaded rod; 301. Support block; 302. Sliding plate; 303. First fixed rod; 304. Fixed frame; 305. First rotating wheel; 306. Third motor; 307. First moving block; 308. Moving platform; 309. Second fixed rod; 310. Second rotating wheel; 311. Second limit rod; 312. Second motor; 313. Second rotating rod; 314. Second moving block; 315. Moving frame; 316. Pulling rod; 317. Clamping head; 4. Moving plate; 5. Electric telescopic rod; 6. Support leg; 7. Support base; 8. Rotating platform; 9. Welding head; 10. Curved edge guardrail; 11. Straight edge guardrail. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-8 The illustrated auxiliary device for welding a yacht guardrail includes a welding table 1, a curved guardrail 10, and a straight guardrail 11. A movable plate 4 is slidably connected to the upper surface of the welding table 1, and an electric telescopic rod 5 is fixedly connected to the upper surface of the movable plate 4. A first fixing mechanism 2 for fixing the straight guardrail 11 is provided on the upper surface of the movable plate 4, and a second clamping mechanism 3 for fixing the curved guardrail 10 is provided on the upper surface of the welding table 1.

[0023] The first fixing mechanism 2 includes a fixing plate 201 fixedly connected to the upper surface of the movable plate 4. A rotating fixing disk 202 is rotatably connected inside the fixing plate 201. A rotating limiting block 203 is fixedly connected to one side of the rotating fixing disk 202. A top plate 222 and a fixing groove 223 are fixedly connected to one side of the fixing plate 201. A first limiting groove 209 is fixedly connected to one side of the fixing plate 201. A second toothed rod 210 is slidably connected inside the first limiting groove 209. A pressure plate 211 is fixedly connected to the top of the second toothed rod 210. A first widened gear 204 is fixedly connected to the other side of the rotating fixing disk 202. One side of the fixing plate 201... A base rod 205 is fixedly connected to the side, and a first toothed rod 206 is slidably connected to the upper surface of the base rod 205. A first rotating rod 207 is rotatably connected inside the fixed plate 201, and a second widened gear 208 is fixedly connected to the outer surface of the first rotating rod 207. A frame 224 is fixedly connected to the side surface of the fixed plate 201, and a fourth motor 225 is fixedly connected inside the frame 224. A power wheel 226 is fixedly connected to the output shaft of the fourth motor 225, and the power wheel 226 meshes with the second widened gear 208. A first support plate 212, a second support plate 213, and a third support plate are fixedly connected to the upper surface of the movable plate 4. 218. A sliding rod 214 is rotatably connected to one side of the first widened gear 204. A first threaded rod 215 is threaded inside the sliding rod 214. A second limiting groove 216 is provided inside the first support plate 212. A first limiting rod 217 is fixedly connected to the outer surface of the sliding rod 214. A worm gear 219 is fixedly connected to the outer surface of the first threaded rod 215. A first motor 220 is fixedly connected to the upper surface of the moving plate 4. A worm gear 221 is fixedly connected to the output shaft of the first motor 220. The first widened gear 204 meshes with the first rack 206. The first rack 206 meshes with the second widened gear 208. The second widened gear 208 and the second toothed rod 210 are meshed and connected. The first limiting rod 217 is slidably connected inside the second limiting groove 216. The first rotating rod 207 is rotatably connected inside the second support plate 213. The sliding rod 214 is rotatably connected inside the first support plate 212. The first threaded rod 215 is rotatably connected inside the third support plate 218. The worm gear 219 is meshed and connected to the worm 221. A vertical insert rod is provided above the moving plate 4. A vertical rod of the straight edge guardrail 11 is inserted into the outside of this vertical rod. The insert rod is used to limit the first vertical guardrail tube of the straight edge guardrail 11.

[0024] Furthermore, the straight-edge guardrail 11 is fixed by the first fixing mechanism 2. After the straight-edge guardrail 11 is placed inside the fixing groove 223, the first motor 220 is started to drive the worm gear 221 to rotate. The worm gear 221 drives the worm wheel 219 and the first threaded rod 215 fixedly connected inside the worm wheel 219 to rotate. When the first threaded rod 215 rotates, it pushes the sliding rod 214 threaded to the outer surface of the first threaded rod 215 to move to both sides, thereby achieving the effect of pushing the sliding rod 214 to move the guardrail 11. The first widened gear 204 and the rotating fixed disk 202 extend outside the fixed plate 201. Then, the fourth motor 225 drives the power wheel 226 to rotate, which in turn drives the second widened gear 208 to rotate. The second widened gear 208 then pushes the first rack 206 to move. The moving first rack 206 pushes the first widened gear 204 and the rotating fixed disk 202 to rotate. The rotation limit block 203 is used to engage the straight edge guardrail 11, thereby limiting and fixing the straight edge guardrail 11.

[0025] The second clamping mechanism 3 includes a support block 301 fixedly connected to the upper surface of the welding table 1. A sliding plate 302 is slidably connected inside the welding table 1. A first fixing rod 303 and a fixing frame 304 are fixedly connected to the upper surface of the sliding plate 302. A first rotating wheel 305 is fixedly connected to the outer surface of the first fixing rod 303. A rotating threaded rod 300 is rotatably connected inside the welding table 1. A third motor 306 is fixedly connected to the lower surface of the welding table 1. A first moving block 307 is threadedly connected to the output shaft of the third motor 306. A moving stage 308 is fixedly connected to the upper surface of the first moving block 307. A second fixing rod 309 is fixedly connected to the upper surface of the moving stage 308. A second rotating wheel 310 is rotatably connected to the outer surface of the second fixing rod 309. A second limiting rod 311 is fixedly connected to the upper surface of the moving stage 308. A moving wheel 310 is slidably connected to the outer surface of the second limiting rod 311. A frame 315 is fixedly connected to one side of a clamping head 317. A second motor 312 is fixedly connected to the upper surface of a moving table 308. A second rotating rod 313 is fixedly connected to the output shaft of the second motor 312. A second moving block 314 is threadedly connected to the outer surface of the second rotating rod 313. A pull rod 316 is rotatably connected to one side of the second moving block 314. A rotating threaded rod 300 is threadedly connected to the inside of a sliding plate 302. The moving frame 315 and the second moving block 314 are rotatably connected through the pull rod 316. A first moving block 307 is slidably connected to the inside of a welding table 1. A support leg 6 is fixedly connected to the lower surface of a moving plate 4. The welding table 1 and the moving plate 4 are connected through an electric telescopic rod 5. A support base 7 is fixedly connected to the side surface of the welding table 1. A rotating table 8 is fixedly connected to the upper surface of the support base 7. A welding head 9 is fixedly connected to the upper surface of the rotating table 8.

[0026] Furthermore, the curved edge guardrail 10 is fixed by the second clamping mechanism 3. First, the curved edge guardrail 10 is placed above the support block 301. Then, the first moving block 307 is pulled by starting the third motor 306, which can drive the moving platform 308 to move backward. When the moving platform 308 moves, the two sides of the curved edge guardrail 10 are pulled towards the middle by the second rotating wheel 310, so that the two ends of the curved edge guardrail 10 can be positioned and the parts to be welded are aligned. Then, the curved edge guardrail 10 is fixed by the clamping head 317 after positioning. At the same time, the second motor 312 is started to move the second moving block 314. The moving second moving block 314 adjusts the position of the clamping head 317 by pulling the moving frame 315 towards the middle or pushing it to the sides by pulling the rod 316.

[0027] Working principle: After the straight-edge guardrail 11 is placed inside the fixing groove 223, the first motor 220 is started to drive the worm gear 221 to rotate. The worm gear 221 drives the worm wheel 219 and the first threaded rod 215 fixedly connected inside the worm wheel 219 to rotate. When the first threaded rod 215 rotates, it pushes the sliding rod 214 threaded to the outer surface of the first threaded rod 215 to move to both sides. This pushes the first widening gear 204 and the rotating fixing plate 202 to extend out of the fixing plate 201 through the sliding rod 214. Then, the first widening gear 204 and the rotating fixing plate 202 are pushed out of the fixing plate 201 through the second motor 220 to rotate. The four motors 225 drive the power wheel 226 to rotate, which in turn drives the second widened gear 208 to rotate. The second widened gear 208 then pushes the first rack 206 to move. The moving first rack 206 pushes the first widened gear 204 and the rotating fixed disk 202 to rotate. The rotation limit block 203 engages the straight edge guardrail 11, thereby limiting and fixing the straight edge guardrail 11. Then, the curved edge guardrail 10 is placed above the support block 301. Then, the third motor 306 is started to move the first moving block 301. 07. Pulling the moving platform 308 backwards allows the second rotating wheel 310 to pull the two sides of the curved guardrail 10 towards the center, thus positioning the two ends of the curved guardrail 10 and aligning the parts to be welded. Then, the clamping head 317 secures the positioned curved guardrail 10. Simultaneously, the second motor 312 is activated to move the second moving block 314. The moving second moving block 314 pulls the moving frame 315 towards the center via the pulling rod 316. The position of the clamping head 317 is adjusted by pushing it to both sides. Finally, the moving plate 4 is moved by the electric telescopic rod 5 so that the straight edge guardrail 11 and the curved edge guardrail 10 are welded together. Then, the welding head 9 is used to weld the points that need to be welded. After welding, the rotating limit block 203 and the rotating fixed plate 202 are flipped and retracted. Then, when the rotating threaded rod 300 is rotated, the first rotating wheel 305 disengages from the straight edge guardrail 11, and the curved edge guardrail 10 and the straight edge guardrail 11 can be removed from the device.

[0028] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A welding auxiliary device for yacht protective railings, comprising a welding table (1), a curved edge protective railing (10), a straight edge protective railing (11), and an electric telescopic rod (5), characterized in that: The upper surface of the welding table (1) is slidably connected to a movable plate (4). The welding table (1) and the movable plate (4) are connected by an electric telescopic rod (5). The upper surface of the movable plate (4) is provided with a first fixing mechanism (2) for fixing the straight edge guardrail (11). The upper surface of the welding table (1) is provided with a second clamping mechanism (3) for fixing the curved edge guardrail (10). The first fixing mechanism (2) includes a fixing plate (201) fixedly connected to the upper surface of the movable plate (4). A rotating fixing disk (202) is rotatably connected inside the fixing plate (201). A rotating limiting block (203) is fixedly connected to one side of the rotating fixing disk (202). A top plate (222) and a fixing groove (223) are fixedly connected to one side of the fixing plate (201). A first limiting groove (209) is fixedly connected to one side of the fixing plate (201). A second toothed rod (210) is slidably connected inside the first limiting groove (209). A pressure plate (211) is fixedly connected to the top end of the second toothed rod (210). A first widened gear (204) is fixedly connected to the other side of the rotating fixed disk (202). A base rod (205) is fixedly connected to one side of the fixed plate (201). A first toothed rod (206) is slidably connected to the upper surface of the base rod (205). A first rotating rod (207) is rotatably connected inside the fixed plate (201). A second widened gear (208) is fixedly connected to the outer surface of the first rotating rod (207). A frame (224) is fixedly connected to the side surface of the fixed plate (201). A fourth motor (225) is fixedly connected inside the frame (224). A power wheel (226) is fixedly connected to the output shaft of the fourth motor (225). The power wheel (226) meshes with the second widened gear (208). The upper surface of the movable plate (4) is fixedly connected to a first support plate (212), a second support plate (213), and a third support plate (218). A sliding rod (214) is rotatably connected to one side of the first widened gear (204). A first threaded rod (215) is threaded inside the sliding rod (214). A second limiting groove (216) is opened inside the first support plate (212). A first limiting rod (217) is fixedly connected to the outer surface of the sliding rod (214). A worm gear (219) is fixedly connected to the outer surface of the first threaded rod (215). A first motor (220) is fixedly connected to the upper surface of the movable plate (4). A worm gear (221) is fixedly connected to the output shaft of the first motor (220). The first widened gear (204) is meshed with the first rack (206), the first rack (206) is meshed with the second widened gear (208), the second widened gear (208) is meshed with the second rack (210), the first limiting rod (217) is slidably connected inside the second limiting groove (216), the first rotating rod (207) is rotatably connected inside the second support plate (213), the sliding rod (214) is rotatably connected inside the first support plate (212), the first threaded rod (215) is rotatably connected inside the third support plate (218), the worm gear (219) is meshed with the worm (221), and a vertical insert is provided above the moving plate (4), and the vertical guardrail tube of the straight edge guardrail (11) is inserted into the outside of this vertical insert; The second clamping mechanism (3) includes a support block (301) fixedly connected to the upper surface of the welding table (1), a sliding plate (302) slidably connected inside the welding table (1), a first fixing rod (303) and a fixing frame (304) fixedly connected to the upper surface of the sliding plate (302), a first rotating wheel (305) fixedly connected to the outer surface of the first fixing rod (303), and a rotating threaded rod (300) rotatably connected inside the welding table (1).

2. The auxiliary device for welding yacht protective railings according to claim 1, characterized in that: A third motor (306) is fixedly connected to the lower surface of the welding table (1). A first moving block (307) is threadedly connected to the output shaft of the third motor (306). A moving platform (308) is fixedly connected to the upper surface of the first moving block (307). A second fixed rod (309) is fixedly connected to the upper surface of the moving platform (308). A second rotating wheel (310) is rotatably connected to the outer surface of the second fixed rod (309).

3. The auxiliary device for welding yacht protective railings according to claim 2, characterized in that: A second limiting rod (311) is fixedly connected to the upper surface of the moving platform (308). A moving frame (315) is slidably connected to the outer surface of the second limiting rod (311). A clamping head (317) is fixedly connected to one side of the moving frame (315). A second motor (312) is fixedly connected to the upper surface of the moving platform (308). A second rotating rod (313) is fixedly connected to the output shaft of the second motor (312). A second moving block (314) is threadedly connected to the outer surface of the second rotating rod (313). A pulling rod (316) is rotatably connected to one side of the second moving block (314).

4. The auxiliary device for welding yacht protective railings according to claim 3, characterized in that: The rotating threaded rod (300) is threaded inside the sliding plate (302), the moving frame (315) and the second moving block (314) are rotatably connected by the pull rod (316), and the first moving block (307) is slidably connected inside the welding table (1).

5. The auxiliary device for welding yacht protective railings according to claim 1, characterized in that: The side surface of the welding table (1) is fixedly connected to a support base (7), the upper surface of the support base (7) is fixedly connected to a rotating platform (8), and the upper surface of the rotating platform (8) is fixedly connected to a welding head (9).

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