Welding positioning device for ship deck bolt mounting column

Abstract

The invention relates to the technical field of ship construction, and discloses a welding positioning device for a ship deck bolt mounting column, which comprises a main body, a contraction mechanism and a clamping mechanism, the main body is internally provided with a mounting space, the contraction mechanism is fixedly arranged at the top of the main body, and the clamping mechanism is arranged in the contraction mechanism. A bolt mounting column extrudes a first arc-shaped plate during shaking, so that the two ends of the first arc-shaped plate apply pushing force to a connecting plate, and after the connecting plate is subjected to the pushing force, the connecting plate swings around a connecting rod, so that the radian of the first arc-shaped plate is increased, and a pushing rod is pushed to move upwards; the situation that the installation of the bolt installation column is affected by inclination caused by the fact that the bolt installation column is driven to shake when a ship shakes is reduced, and the installation quality of the installation column on a ship deck is improved.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, specifically to a welding and positioning device for ship deck bolt mounting columns. Background Technology

[0002] In the process of ship construction and maintenance, the welding of deck bolts is a critical step. As an important area for the placement of various equipment, cargo and personnel activities on a ship, the structural stability of the ship deck is directly related to the safe navigation and normal use of the ship. As a key connecting component that connects the deck to other structural components, the accuracy and firmness of the installation of the deck bolts play a decisive role in the reliability of the entire deck structure. In the process of using welding and positioning devices for ship deck bolt mounting posts, the mounting posts are generally positioned and installed using plate-like clamps. The bolt mounting posts to be installed are fixed at the installation point, and then the bottom of the bolt mounting posts is fixed to the ship deck threads to achieve the installation purpose. When installing threaded mounting posts on ships at sea, the ships are easily affected by wind and waves on the water surface, causing them to sway. When using two plates for squeezing positioning, it is easy to cause misalignment during the installation process, affecting the quality and efficiency of bolt mounting post installation. Summary of the Invention

[0003] The purpose of this invention is to provide a welding and positioning device for ship deck bolt mounting posts, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a welding and positioning device for a ship deck bolt mounting post, comprising a main body having an internal installation space, and further comprising; A shrink mechanism is fixedly installed on the top of the main body; The clamping mechanism is installed inside the retraction mechanism.

[0005] Furthermore, the main body includes a fixed frame slidably connected to the inner wall of the main body, and the inner wall of the fixed frame is provided with several placement slots. The main body includes: The positioning component has its sidewall slidably connected to the inner wall of the main body; The swing assembly has its side wall fixedly connected to the inner wall of the positioning assembly.

[0006] Furthermore, the shrinking mechanism includes a push rod disposed inside the placement slot, and the shrinking mechanism includes: A rotating assembly, wherein the rotating assembly is mounted on the side wall of the swing assembly via a swinging component; A telescopic assembly is installed inside the rotating assembly via a fastener.

[0007] Furthermore, the clamping mechanism includes a rectangular block fixedly disposed inside the rotating assembly, and the clamping mechanism includes: The sliding component and the telescopic component are internally fixed. The lifting assembly is mounted at the bottom of the sliding assembly via a rotating component.

[0008] Furthermore, the positioning component includes a sliding connection to the fixed frame, and the side of the fixed frame not slidably connected to the main body is configured to open and close; The fixed frame is slidably connected inside the main body.

[0009] Furthermore, the swing assembly includes a connecting rod fixedly connected to the side wall of the placement slot. Two connecting plates are rotatably connected to the outer surface of the connecting rod. An arc-shaped plate is rotatably connected to the end of the two connecting plates away from the connecting rod. A return spring is fixedly connected to the side of the connecting plate near the fixed frame.

[0010] Furthermore, the rotating assembly includes a telescopic rod slidably connected to the end of the push rod away from the arc-shaped plate, and a clamping plate is rotatably connected to the end of the two telescopic rods away from the main body; The swinging component includes a placement frame rotatably connected to one end of two telescopic rods near the main body. An arc-shaped plate is rotatably connected to one side of each of the two telescopic rods that are close to each other. The ends of the two push rods away from the telescopic rods are rotatably connected to one end of the arc-shaped plate.

[0011] Furthermore, the fastener includes two fixed brackets fixedly connected to the inner wall of the placement frame, and a second telescopic rod is slidably connected to the side of the fixed brackets near the first telescopic rod; The telescopic assembly includes a folding plate rotatably connected to the end of the telescopic rod away from the fixed frame. Fixed rods are fixedly connected to the sides of the two fixed frames that are close to each other. Limiting plates are fixedly connected to the top of the fixed rods. The folding plate is arc-shaped as a whole.

[0012] Furthermore, the sliding assembly includes a sliding groove formed on the side wall of the rectangular block, an elastic plate slidably connected inside the sliding groove, two rectangular grooves formed on the side wall of the sliding groove, a strip groove formed on the side of the rectangular groove away from the elastic plate, and a spring fixedly connected to the inner wall of the elastic plate. One end of the rectangular block is fixedly connected to the end of the folding plate away from the placement frame.

[0013] Furthermore, the lifting assembly includes a sliding block slidably connected inside two rectangular slots, a plurality of rotating rods rotatably connected to the side of the sliding block closer to the main body, and a piston plate rotatably connected to the end of the rotating rods away from the sliding block; The rotating component includes a rubber pad disposed inside the strip groove, the side of the sliding block away from the main body is fixedly connected to the inner wall of the elastic plate, and rubber pads are disposed on the side walls of both strip grooves, and the side walls of the two rubber pads are fixedly connected to the inner wall of the rectangular block.

[0014] The present invention has the following beneficial effects: 1. This invention utilizes the compression of the arc-shaped plate by the bolt-mounted column during swaying to apply a thrust to the connecting plate at both ends of the arc-shaped plate. After the connecting plate receives the thrust, it swings around the connecting rod, increasing the curvature of the arc-shaped plate and pushing the push rod upward. Subsequently, the telescopic rod is pushed upward by the push rod, thus applying a thrust to the bolt-mounted column through the clamping plate. This achieves the effect of keeping the bolt-mounted column stable during ship swaying, reducing the possibility of tilting caused by ship swaying and affecting the installation of the bolt-mounted column, and improving the quality of installation of the bolt-mounted column on the ship deck.

[0015] 2. In this invention, when the telescopic rod swings upward, it causes the arc-shaped plate on one side to move upward synchronously, thereby applying a pushing force to the protrusion of the folding plate. When the folding plate is pushed, the top limit plate blocks the folding plate, causing the folding plate to extend downward at both ends while simultaneously causing the telescopic rod to slide downward on the fixed frame. During the downward extension of the folding plate, it pushes the rectangular block at one end to contact the bolt mounting post and applies a downward force, reducing the upward displacement of the bolt mounting post due to the action of the telescopic rod. This keeps the bolt mounting post stable, enhances the accuracy of bolt mounting post installation, and thus improves the efficiency of bolt mounting post installation.

[0016] 3. In this invention, as the rectangular block gradually comes into contact with the bolt mounting post, the elastic plate located inside is subjected to the reaction force of the bolt mounting post, causing the springs at both ends to slide inside the sliding groove, thereby moving the elastic plate into the sliding groove. When the elastic plate moves into the sliding groove, it pushes the sliding block to slide inside the rectangular groove, thereby pushing the rotating rod to push the piston plate to deliver air into the rubber pad, so as to expand the rubber pad and increase the friction between it and the bolt mounting post. This reduces the swaying amplitude during the installation of the mounting post to a certain extent and improves the accuracy of the bolt mounting post installation on the ship deck, further ensuring the quality of the bolt mounting post installation.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic cross-sectional view of part of the structure of the present invention. Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the rotating component of the present invention; Figure 7 This is a schematic diagram of the telescopic component of the present invention; Figure 8 This is a schematic diagram of the clamping mechanism of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 11. Positioning component; 111. Fixing frame; 112. Sliding rod; 12. Swinging component; 121. Connecting rod; 122. Connecting plate; 123. Arc plate one; 124. Return spring; 2. Retraction mechanism; 21. Rotating component; 211. Push rod; 212. Telescopic rod one; 213. Clamping plate; 214. Placement frame; 215. Arc plate two; 22. Telescopic component; 221. Fixing frame; 222. Telescopic rod two; 223. Folding plate; 224. Fixing rod; 225. Limiting plate; 3. Clamping mechanism; 31. Sliding component; 311. Rectangular block; 312. Sliding groove; 313. Elastic plate; 314. Rectangular groove; 32. Lifting component; 321. Sliding block; 322. Rotating rod; 323. Piston plate; 324. Rubber pad. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8As shown, the present invention is a welding and positioning device for a ship deck bolt mounting post, including a main body 1, the main body 1 having an installation space inside, and also including; Shrinkage mechanism 2 is fixedly installed on the top of the main body 1; The clamping mechanism 3 is installed inside the retraction mechanism 2. The interior of the main body 1 is connected to the retraction mechanism 2, and the retraction mechanism 2 operates by the thrust generated by the tilt of the bolt mounting column inside the main body 1. Then, when the retraction mechanism 2 is running, it drives the clamping mechanism 3 to contact the bolt mounting column and generate force, thereby completing the operation of the entire device.

[0023] The main body 1 includes a fixed frame 111 slidably connected to the inner wall of the main body 1. The inner wall of the fixed frame 111 is provided with a plurality of placement slots. The main body 1 includes: Positioning component 11, the sidewall of positioning component 11 is slidably connected to the inner wall of the main body 1; The swing assembly 12 has its side wall fixedly connected to the inner wall of the positioning assembly 11. After the bolt mounting column is moved into the main body, it is fixed by the positioning assembly 11. When the ship is sailing, the bolt mounting column will shake, causing it to tilt and thus apply a thrust to the swing assembly 12, thereby starting the swing assembly 12 to run.

[0024] The shrinking mechanism 2 includes a push rod 211 disposed inside the placement slot. The shrinking mechanism 2 includes: Rotating assembly 21 is mounted on the side wall of swing assembly 12 via a swing member; The telescopic component 22 is installed inside the rotating component 21 by a fastener. After the swing component 12 starts to run, the part inside it that is connected to the rotating component 21 will drive the rotating component 21 to run. After the rotating component 21 starts to run, it will drive the telescopic component 22 to run. Then it will apply an upward thrust to the bolt mounting column, thereby stabilizing the tilted bolt mounting column.

[0025] The clamping mechanism 3 includes a rectangular block 311 fixedly disposed inside the rotating assembly 21. The clamping mechanism 3 includes: Sliding component 31 is internally fixed to telescopic component 22; The lifting component 32 is mounted at the bottom of the sliding component 31 via a rotating part. When the telescopic component 22 starts to run, it will drive the part connecting the sliding component 31 and the telescopic component 22 to start running. After the sliding component 31 starts to run, it will drive the lifting component 32 inside it to start running. After the sliding component 31 and the lifting component 32 start to run, they will apply a downward force to the bolt mounting column, thereby keeping the bolt mounting column in a stable state, which will facilitate subsequent installation.

[0026] The positioning component 11 includes a sliding connection to the fixed frame 111, and the side of the fixed frame 111 not slidably connected to the main body 1 is configured to open and close. The fixed frame 111 is slidably connected inside the main body 1. First, the fixed frame 111 is opened, and the mounting column is moved into the fixed frame 111. Then, the fixed frame 111 is closed. After the fixed frame 111 is closed, it slides upward through the sliding rod 112, thereby reducing the occurrence of contact with objects on the deck when the mounting column inside the fixed frame 111 is moved through the main body 1.

[0027] The swing assembly 12 includes a connecting rod 121 fixedly connected to the side wall of the placement slot. Two connecting plates 122 are rotatably connected to the outer surface of the connecting rod 121. An arc-shaped plate 123 is rotatably connected to one end of the two connecting plates 122 away from the connecting rod 121. A return spring 124 is fixedly connected to the side of the connecting plate 122 near the fixed frame 111. When the mounting column is tilted, its side wall will press against the arc-shaped plate 123. When the arc-shaped plate 123 is pressed, it will exert a pushing force on the connecting plates 122 located at its two ends.

[0028] The rotating assembly 21 includes a telescopic rod 212 slidably connected to the end of the push rod 211 away from the arc plate 123, and a clamping plate 213 rotatably connected to the end of the two telescopic rods 212 away from the main body 1. The swinging component includes a placement frame 214 rotatably connected to one end of two telescopic rods 212 near the main body 1. An arc-shaped plate 215 is rotatably connected to one side of each of the two telescopic rods 212 that are close to each other. The ends of two push rods 211 away from the telescopic rods 212 are rotatably connected to one end of the arc-shaped plate 123. When the connecting plate 122 is pushed, it will rotate around the connecting rod 121. When the connecting rod 121 rotates, it will cause the push rod 211 to move into the placement frame 214. When the push rod 211 moves, it will apply a pushing force to the telescopic rods 212, causing them to swing from the inside of the placement frame 214 into the inside of the fixed frame 111.

[0029] The fasteners include two fixing brackets 221 fixedly connected to the inner wall of the placement frame 214, and a second telescopic rod 222 is slidably connected to the side of the fixing bracket 221 near the first telescopic rod 212; The telescopic assembly 22 includes a folding plate 223 rotatably connected to the end of the telescopic rod 222 away from the fixed frame 221. Fixed rods 224 are fixedly connected to the sides of the two fixed frames 221 that are close to each other. A limit plate 225 is fixedly connected to the top of the fixed rod 224. The folding plate 223 is arc-shaped. When the telescopic rod 212 swings inward toward the fixed frame 111, it will drive the arc-shaped plate 215 to move. When the arc-shaped plate 215 moves, it will contact the protrusion of the folding plate 223. When it continues to move, it will apply a pushing force to the protrusion of the folding plate 223. Since the limit plate 225 is set at the top of the folding plate 223 to limit the folding plate 223, when the protrusion of the folding plate 223 is pushed, the two ends of the folding plate 223 will extend to both sides due to the folding plate 223's own extensibility.

[0030] The sliding assembly 31 includes a sliding groove 312 formed on the side wall of the rectangular block 311. An elastic plate 313 is slidably connected inside the sliding groove 312. Two rectangular grooves 314 are formed on the side wall of the sliding groove 312. A strip groove is formed on the side of the rectangular groove 314 away from the elastic plate 313. A spring is fixedly connected to the inner wall of the elastic plate 313. One end of the rectangular block 311 is fixedly connected to the end of the folding plate 223 away from the placement frame 214. When the rectangular block 311 moves toward the side wall of the mounting column, the elastic plate 313 located inside the sliding groove 312 will contact the side wall of the mounting column during the movement. After the elastic plate 313 contacts the mounting column, it will continue to be pushed by the extension of the elastic plate 313, thereby causing the rectangular block 311 to move toward the mounting column. During the continued movement of the rectangular block 311, the elastic plate 313 will be squeezed, causing its two ends to slide inside the sliding groove 312. When the two ends of the sliding groove 312 slide, the curvature of the elastic plate 313 will increase, thus moving into the interior of the sliding groove 312.

[0031] The lifting assembly 32 includes a sliding block 321 that is slidably connected inside two rectangular slots 314. A plurality of rotating rods 322 are rotatably connected to the side of the sliding block 321 closer to the main body 1. A piston plate 323 is rotatably connected to the end of the rotating rod 322 away from the sliding block 321. The rotating component includes a rubber pad 324 disposed inside the strip groove. The side of the sliding block 321 away from the main body 1 is fixedly connected to the inner wall of the elastic plate 313. Both side walls of the two strip grooves are provided with rubber pads 324. The side walls of the two rubber pads 324 are fixedly connected to the inner wall of the rectangular block 311. When the elastic plate 313 slides into the sliding groove 312, it will apply a pushing force to the sliding block 321. When the sliding block 321 is pushed, it will slide inside the sliding groove of the rectangular groove 314. When the sliding block 321 moves into the sliding groove, it will apply a pushing force to the rotating rod 322, thereby causing the rotating rod 322 to push the piston plate 323 to slide to both sides inside the strip groove. When the piston plate 323 slides, it will compress the air inside the strip groove, thereby causing the air to enter the rubber pad 324 and causing the rubber pad 324 to expand and contact the mounting post.

[0032] In use, first open the fixing frame 111, move the mounting column inside the fixing frame 111, and then close the fixing frame 111. After closing the fixing frame 111, slide the fixing frame 111 upwards via the sliding rod 112 to reduce the possibility of contact with objects on the deck when moving the mounting column inside the fixing frame 111 via the main body 1. When moving the mounting column, the ship will sway due to wind and waves during navigation. Therefore, when the ship sways, the mounting column may tilt. When the mounting column tilts, its sidewall will press against the arc plate 123. When the arc plate 123 is pressed, it will exert a thrust on the connecting plates 122 located at both ends. When the connecting plates 122 are subjected to thrust... The rod will rotate around the connecting rod 121. When the connecting rod 121 rotates, it will cause the push rod 211 to move into the placement frame 214. When the push rod 211 moves, it will apply a thrust to the telescopic rod 212, causing it to swing from inside the placement frame 214 into the fixed frame 111. When the telescopic rod 212 swings into the fixed frame 111, it will drive the clamping plate 213 to move synchronously and contact the side wall of the mounting column, thereby applying a thrust to the tilted part of the mounting column to keep it stable. By using the telescopic rod 212 to drive the clamping plate 213 to correct the tilted mounting column, the situation where the tilt of the mounting column affects the installation of the mounting column during the operation of the ship is reduced, and the quality of the installation of the mounting column on the ship deck is improved.

[0033] When the telescopic rod 212 swings inward toward the fixed frame 111, it causes the arc-shaped plate 215 to move. As the arc-shaped plate 215 moves, it contacts the protrusion of the folding plate 223. Upon further movement, it applies a pushing force to the protrusion of the folding plate 223. Because a limit plate 225 is provided at the top of the folding plate 223 to limit its movement, when the protrusion of the folding plate 223 is subjected to a pushing force, the folding plate 223, due to its inherent extensibility, will extend to both sides. As the folding plate 223 extends, one end causes the rectangular block 311 to contact the mounting post while moving downwards. Simultaneously, the other end of the folding plate 223 causes the telescopic rod 222 to stretch while simultaneously contacting the fixed frame 2. The telescopic rod 212 slides downwards on the side wall of the 21. Therefore, when the telescopic rod 212 swings upwards to apply a thrust to the mounting column to reset it, the mounting column may be displaced upwards by the thrust of the telescopic rod 212. At this time, the arc plate 215 driven by the telescopic rod 212 will cause the folding plate 223 to extend downwards, thereby causing the rectangular block 311 at one end to swing downwards while extending. This achieves the interaction between the downward swinging force applied to the mounting column and the upward swinging force of the telescopic rod 212, thus keeping the mounting column stable, enhancing the accuracy of the mounting column installation, and reducing the situation where the mounting column is offset due to the swaying of the ship during installation, thereby improving the efficiency of the mounting column installation.

[0034] As the rectangular block 311 moves toward the side wall of the mounting post, the elastic plate 313 located inside the sliding groove 312 will contact the side wall of the mounting post during the movement. After the elastic plate 313 contacts the mounting post, it will continue to be pushed by the extension of the elastic plate 313, causing the rectangular block 311 to move toward the mounting post. As the rectangular block 311 continues to move, the elastic plate 313 will be squeezed, causing its two ends to slide inside the sliding groove 312. When the two ends of the sliding groove 312 slide, the curvature of the elastic plate 313 will increase, causing it to move further into the sliding groove 312. When the elastic plate 313 slides into the sliding groove 312, it will apply a pushing force to the sliding block 321. When subjected to thrust, the sliding block 321 slides inside the sliding groove 314. As the sliding block 321 moves into the sliding groove, it applies thrust to the rotating rod 322, causing the rotating rod 322 to push the piston plate 323 to slide to both sides inside the strip groove. When the piston plate 323 slides, it compresses the air inside the strip groove, causing the air to enter the rubber pad 324 and expand to contact the mounting post. This increases the contact area between the rectangular block 311 and the mounting post, thereby ensuring stability during movement. It also reduces the swaying amplitude during the installation of the mounting post to a certain extent and improves the accuracy of the installation of the mounting post on the ship deck, further ensuring the quality of the installation of the mounting post.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding and positioning device for a ship deck bolt mounting post, comprising a main body (1), wherein the main body (1) has an installation space inside, characterized in that, Also includes; A shrinking mechanism (2) is fixedly installed on the top of the main body (1); The clamping mechanism (3) is installed inside the retraction mechanism (2).

2. The welding and positioning device for a ship deck bolt mounting post according to claim 1, characterized in that: The main body (1) includes a fixed frame (111) slidably connected to the inner wall of the main body (1), and the inner wall of the fixed frame (111) is provided with a plurality of placement slots. The main body (1) includes: Positioning component (11), the sidewall of which is slidably connected to the inner wall of the main body (1); The swing assembly (12) has its sidewall fixedly connected to the inner wall of the positioning assembly (11).

3. The welding positioning device for a ship deck bolt mounting post according to claim 2, characterized in that: The shrinking mechanism (2) includes a push rod (211) disposed inside the placement slot, and the shrinking mechanism (2) includes: Rotating assembly (21), which is mounted on the side wall of the swing assembly (12) via a swing member; Telescopic component (22) is installed inside the rotating component (21) by means of a fastener.

4. The welding positioning device for a ship deck bolt mounting post according to claim 3, characterized in that: The clamping mechanism (3) includes a rectangular block (311) fixedly disposed inside the rotating assembly (21), and the clamping mechanism (3) includes: The sliding component (31) is internally fixed to the telescopic component (22); The lifting assembly (32) is mounted on the bottom of the sliding assembly (31) via a rotating component.

5. The welding positioning device for a ship deck bolt mounting post according to claim 4, characterized in that: The positioning component (11) includes a sliding connection to the fixed frame (111), and the side of the fixed frame (111) not slidably connected to the main body (1) is openable and closable. The fixed frame (111) is slidably connected inside the main body (1).

6. The welding positioning device for a ship deck bolt mounting post according to claim 5, characterized in that: The swing assembly (12) includes a connecting rod (121) fixedly connected to the side wall of the placement slot. Two connecting plates (122) are rotatably connected to the outer surface of the connecting rod (121). An arc-shaped plate (123) is rotatably connected to one end of the two connecting plates (122) away from the connecting rod (121). A return spring (124) is fixedly connected to the side of the connecting plate (122) near the fixed frame (111).

7. The welding positioning device for a ship deck bolt mounting post according to claim 6, characterized in that: The rotating assembly (21) includes a telescopic rod (212) slidably connected to the end of the push rod (211) away from the arc plate (123), and a clamping plate (213) is rotatably connected to the ends of the two telescopic rods (212) away from the main body (1). The swinging component includes a placement frame (214) rotatably connected to one end of the two telescopic rods (212) near the main body (1). An arc plate (215) is rotatably connected to one side of the two telescopic rods (212) that are close to each other. The end of the two push rods (211) away from the telescopic rods (212) is rotatably connected to one end of the arc plate (123).

8. The welding positioning device for a ship deck bolt mounting post according to claim 7, characterized in that: The fasteners include two fixed brackets (221) fixedly connected to the inner wall of the placement frame (214), and a second telescopic rod (222) is slidably connected to the side of the fixed bracket (221) near the first telescopic rod (212). The telescopic assembly (22) includes a folding plate (223) rotatably connected to one end of the telescopic rod (222) away from the fixed frame (221). The two fixed frames (221) are fixedly connected to a fixed rod (224) on the side close to each other. A limit plate (225) is fixedly connected to the top of the fixed rod (224). The folding plate (223) is arc-shaped as a whole.

9. The welding positioning device for a ship deck bolt mounting post according to claim 8, characterized in that: The sliding assembly (31) includes a sliding groove (312) formed on the side wall of the rectangular block (311). An elastic plate (313) is slidably connected inside the sliding groove (312). Two rectangular grooves (314) are formed on the side wall of the sliding groove (312). A strip groove is formed on the side of the rectangular groove (314) away from the elastic plate (313). A spring is fixedly connected to the inner wall of the elastic plate (313). One end of the rectangular block (311) is fixedly connected to the end of the folding plate (223) away from the placement frame (214).

10. The welding positioning device for a ship deck bolt mounting post according to claim 9, characterized in that: The lifting assembly (32) includes a sliding block (321) slidably connected inside two rectangular slots (314). The side of the sliding block (321) closest to the main body (1) is rotatably connected to a plurality of rotating rods (322). The end of the rotating rod (322) away from the sliding block (321) is rotatably connected to a piston plate (323). The rotating component includes a rubber pad (324) disposed inside the strip groove. The side of the sliding block (321) away from the main body (1) is fixedly connected to the inner wall of the elastic plate (313). Both side walls of the strip groove are provided with rubber pads (324), and the side walls of the two rubber pads (324) are fixedly connected to the inner wall of the rectangular block (311).

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