A welding positioning device for a ship deck bolt mounting column

Abstract

The application relates to the shipbuilding technical field and discloses a welding positioning device for a ship deck bolt mounting column, which comprises a main body, the inside of the main body is provided with a mounting space, further comprises a contraction mechanism, the contraction mechanism is fixedly arranged at the top of the main body, and a clamping mechanism is arranged in the inside of the contraction mechanism. When the bolt mounting column shakes, the arc-shaped plate one is extruded, so that the two ends of the arc-shaped plate one exert a pushing force on the connecting plate; after the connecting plate is subjected to the pushing force, the connecting plate swings around the connecting rod, so that the arc degree of the arc-shaped plate one is increased, the pushing rod is pushed to move upwards, the bolt mounting column is prevented from tilting and being affected during installation when the ship shakes, and the installation quality of the mounting column on the ship deck is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shipbuilding, in particular to a welding positioning device for a ship deck bolt mounting column. BACKGROUND

[0002] In the process of shipbuilding and maintenance, the welding operation of the deck bolt mounting column is a very critical link. The deck of the ship is an important area for placing various equipment, goods and personnel activities, and the stability of its structure is directly related to the safe navigation and normal use of the ship. The deck bolt mounting column is a key connecting piece connecting the deck and other structural components, and the accuracy and firmness of its installation play a decisive role in the reliability of the entire deck structure.

[0003] In the use of the welding positioning device for the ship deck bolt mounting column, the mounting column is generally positioned and installed by using a plate-shaped clamp. The bolt mounting column to be installed is fixed at the installation point, and then the bottom of the bolt mounting column is screwed to the ship deck to achieve the installation purpose. When installing the threaded mounting column on a ship sailing on the sea, the ship is easily affected by the waves on the water surface and shakes. When positioning by extrusion with two plates, it is difficult to align during installation, which affects the quality and efficiency of the bolt mounting column installation. SUMMARY

[0004] The purpose of the present application is to provide a welding positioning device for a ship deck bolt mounting column to solve the problems raised in the background art.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a welding positioning device for a ship deck bolt mounting column, comprising a main body having an installation space inside, and further comprising:

[0007] A contraction mechanism is fixedly arranged at the top of the main body.

[0008] A clamping mechanism is installed inside the contraction mechanism.

[0009] Further, the main body comprises:

[0010] A positioning assembly is slidably connected to the inner wall of the main body.

[0011] An oscillating assembly is fixedly connected to the inner wall of the positioning assembly.

[0012] Further, the contraction mechanism comprises a push rod arranged inside the placement groove, and the contraction mechanism comprises:

[0013] The rotating assembly is arranged on the side wall of the swinging assembly through a swinging piece;

[0014] The telescopic assembly is arranged inside the rotating assembly through a fixing piece.

[0015] Further, the clamping mechanism includes a rectangular block fixedly arranged inside the rotating assembly, and the clamping mechanism includes:

[0016] The sliding assembly is fixedly arranged inside the telescopic assembly;

[0017] The lifting assembly is arranged at the bottom of the sliding assembly through a rotating piece.

[0018] Further, the positioning assembly includes a fixed frame slidingly connected to the inner wall of the main body, a plurality of placement grooves are formed at the inner wall of the fixed frame, and the side of the fixed frame not slidingly connected to the main body is arranged in an openable and closable manner.

[0019] Further, the swinging assembly includes a connecting rod fixedly connected to the side wall of the placement groove, two connecting plates are rotationally connected to the outer surface of the connecting rod, an arc-shaped plate one is rotationally connected to the end of the two connecting plates away from the connecting rod, and a return spring is fixedly connected to the side of the connecting plate close to the fixed frame.

[0020] Further, the rotating assembly includes a telescopic rod one slidingly connected to the end of the pushing rod away from the arc-shaped plate one, and a clamping plate is rotationally connected to the end of the two telescopic rods one away from the main body.

[0021] The swinging piece includes a placement frame rotationally connected to the end of the two telescopic rods one close to the main body, an arc-shaped plate two is rotationally connected to the side of each of the two telescopic rods one close to each other, and the end of each of the two pushing rods away from the telescopic rod one is rotationally connected to the end of the arc-shaped plate one.

[0022] Further, the fixing piece includes two fixed frames fixedly connected to the inner wall of the placement frame, and a telescopic rod two is slidingly connected to the side of each of the two fixed frames close to the telescopic rod one.

[0023] The telescopic assembly includes a folding plate rotationally connected to the end of the telescopic rod two away from the fixed frame, a fixed rod is fixedly connected to the side of each of the two fixed frames close to each other, a limiting plate is fixedly connected to the top of the fixed rod, and the folding plate is in an overall arc shape.

[0024] Further, the sliding assembly includes a sliding groove formed in the side wall of the rectangular block, a resilient plate is slidingly connected to the inside of the sliding groove, two rectangular grooves are formed in the side wall of the sliding groove, a strip-shaped groove is formed in the side of each of the two rectangular grooves away from the resilient plate, and a spring is fixedly connected to the inner wall of the resilient plate.

[0025] One end of the rectangular block is fixedly connected to the end of the folding plate away from the placement frame.

[0026] Further, the lifting assembly comprises a sliding block slidingly connected inside the two rectangular grooves, and a plurality of rotating rods are rotatably connected to one side of the sliding block close to the main body, and a piston plate is rotatably connected to one end of the rotating rods away from the sliding block;

[0027] The rotating member comprises a rubber pad arranged inside the strip-shaped groove, one side of the sliding block away from the main body is fixedly connected with the inner wall of the elastic plate, the side walls of the two strip-shaped grooves are provided with rubber pads, and the side walls of the two rubber pads are fixedly connected with the inner wall of the rectangular block.

[0028] The present application has the following advantages:

[0029] 1、The present application, through the extrusion of the arc-shaped plate one on the bolt mounting column when it shakes, the two ends of the arc-shaped plate one exert a pushing force on the connecting plate, after the connecting plate is subjected to the pushing force, it will swing around the connecting rod so that the arc of the arc-shaped plate one becomes larger, pushing the pushing rod to move upward, then the telescopic rod one is swung upward by the pushing force of the pushing rod, so that the clamp plate exerts a pushing force on the bolt mounting column, achieving the effect of keeping the bolt mounting column stable when the ship shakes, reducing the inclination of the bolt mounting column caused by the shaking of the ship, thereby affecting the installation of the bolt mounting column, improving the quality of the installation of the mounting column on the deck of the ship.

[0030] 2、The present application, when the telescopic rod one swings upward, the arc-shaped plate two on one side will be displaced upward synchronously, thereby exerting a pushing force on the protrusion of the folding plate, when the folding plate is subjected to the pushing force, the folding plate is blocked by the top limiting plate, so that when the protrusion of the folding plate is subjected to the pushing force, the folding plate will drive the two ends to extend downward while driving the telescopic rod two to slide downward on the fixed frame, in the process of the downward extension of the folding plate, the rectangular block on one end will be in contact with the bolt mounting column while exerting a downward force, reducing the upward displacement of the bolt mounting column caused by the action of the telescopic rod one, thereby keeping the bolt mounting column stable, enhancing the accuracy of the installation of the bolt mounting column, thereby improving the efficiency of the installation of the bolt mounting column.

[0031] 3、The present application, in the process of the gradual contact of the rectangular block with the bolt mounting column, the elastic plate inside will be subjected to the reaction force of the bolt mounting column, pulling the spring at both ends to slide inside the sliding groove, thereby moving the elastic plate inside the sliding groove, when the elastic plate moves inside the sliding groove, it will push the sliding block to slide inside the rectangular groove, thereby pushing the rotating rod to push the piston plate to input gas into the rubber pad, achieving the purpose of expanding the rubber pad and enhancing the friction between the rubber pad and the bolt mounting column, to a certain extent, reducing the shaking amplitude during the installation of the mounting column and improving the accuracy of the installation of the bolt mounting column on the deck of the ship, further ensuring the quality of the installation of the bolt mounting column.

[0032] 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

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0036] Figure 3 This is a schematic cross-sectional view of part of the structure of the present invention.

[0037] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0038] Figure 5 For the present invention Figure 3 Enlarged view of point B in the middle;

[0039] Figure 6 This is a schematic diagram of the rotating component of the present invention;

[0040] Figure 7 This is a schematic diagram of the telescopic component of the present invention;

[0041] Figure 8 This is a schematic diagram of the clamping mechanism of the present invention.

[0042] The attached diagram lists the components represented by each number as follows:

[0043] 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

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0045] Please refer to Figures 1-8 As shown in the figure, the present application is a kind of welding positioning device for ship deck bolt mounting column, including main body 1, the inside of main body 1 has installation space, still including;

[0046] Retracting mechanism 2 is fixedly arranged at the top of main body 1;

[0047] Clamping mechanism 3 is installed and arranged in the inside of retracting mechanism 2, the inside of main body 1 is connected with retracting mechanism 2, and retracting mechanism 2 operates through the thrust generated by the inclination of bolt mounting column in the inside of main body 1, then the clamping mechanism 3 is driven to contact the bolt mounting column to generate force when retracting mechanism 2 operates, so as to complete the operation of the whole device.

[0048] Main body 1 includes:

[0049] Positioning assembly 11, the side wall of positioning assembly 11 is slidingly connected with the inner wall of main body 1;

[0050] Swing assembly 12, the side wall of swing assembly 12 is fixedly connected with the inner wall of positioning assembly 11, after moving the bolt mounting column into the inside of main body, the bolt mounting column is fixed through positioning assembly 11, because the ship will sway when driving, the bolt mounting column will be inclined to exert a thrust on swing assembly 12, so that swing assembly 12 starts to operate.

[0051] Retracting mechanism 2 includes a push rod 211 arranged in the placing groove, and retracting mechanism 2 includes:

[0052] Rotating assembly 21 is installed and arranged on the side wall of swing assembly 12 through a swing piece;

[0053] Telescopic assembly 22 is installed and arranged in the inside of rotating assembly 21 through a fixing piece, after swing assembly 12 starts to operate, the part connected with rotating assembly 21 in the inside of telescopic assembly 22 will drive rotating assembly 21 to operate, after rotating assembly 21 starts to operate, telescopic assembly 22 will start to operate, then an upward thrust will be exerted on the bolt mounting column, so that the inclined bolt mounting column remains stable.

[0054] Clamping mechanism 3 includes a rectangular block 311 fixedly arranged in the inside of rotating assembly 21, and clamping mechanism 3 includes:

[0055] The sliding assembly 31 is fixedly arranged inside the telescopic assembly 22;

[0056] The lifting assembly 32 is arranged at the bottom of the sliding assembly 31 through a rotating piece, and when the telescopic assembly 22 starts to operate, the part connected with the telescopic assembly 22 of the sliding assembly 31 starts to operate, and after the sliding assembly 31 starts to operate, the lifting assembly 32 inside the sliding assembly 31 starts to operate, and after the sliding assembly 31 and the lifting assembly 32 start to operate, a downward force is applied to the bolt mounting column, so that the bolt mounting column as a whole maintains a stable state, thereby facilitating subsequent installation.

[0057] The positioning assembly 11 comprises a fixed frame 111 slidably connected to the inner wall of the main body 1, a plurality of placement grooves are formed in the inner wall of the fixed frame 111, and the side of the fixed frame 111 not connected to the main body 1 is arranged to be opened and closed. First, open the fixed frame 111, move the mounting column to the inside of the fixed frame 111, then close the fixed frame 111, and after closing the fixed frame 111, slide the fixed frame 111 upward through the sliding rod 112, so as to reduce the case of touching the object on the deck when moving the mounting column inside the fixed frame 111 through the main body 1.

[0058] The swinging assembly 12 comprises a connecting rod 121 fixedly connected to the side wall of the placement groove, two connecting plates 122 rotatably connected to the outer surface of the connecting rod 121, an arc-shaped plate one 123 rotatably connected to the end of the two connecting plates 122 away from the connecting rod 121, and a return spring 124 fixedly connected to the side of the connecting plate 122 close to the fixed frame 111. When the mounting column is inclined, the side wall will extrude the arc-shaped plate one 123, and when the arc-shaped plate one 123 is extruded, the connecting plate 122 at both ends will be pushed.

[0059] The rotating assembly 21 comprises a telescopic rod one 212 slidably connected to the pushing rod 211 away from one end of the arc-shaped plate one 123, and a clamping plate 213 rotatably connected to the end of the two telescopic rod ones 212 away from the main body 1;

[0060] The swinging member comprises a placement frame 214 rotatably connected to the end of the two telescopic rod ones 212 close to the main body 1, two arc-shaped plates two 215 rotatably connected to the sides of the two telescopic rod ones 212 close to each other, and the ends of the two pushing rods 211 away from the telescopic rod one 212 rotatably connected to one end of the arc-shaped plate one 123. When the connecting plate 122 is pushed, it will rotate around the connecting rod 121, and when the connecting rod 121 rotates, the pushing rod 211 will move towards the inside of the placement frame 214, and when the pushing rod 211 moves, it will push the telescopic rod one 212 to swing inside the placement frame 214 towards the inside of the fixed frame 111.

[0061] The fixing member comprises two fixing frames 221 fixedly connected to the inner wall of the placing frame 214, and a telescopic rod two 222 is slidingly connected to one side of the fixing frame 221 close to the telescopic rod one 212;

[0062] The telescopic assembly 22 comprises a folding plate 223 rotatably connected to one end of the telescopic rod two 222 away from the fixing frame 221, both sides of the fixing frame 221 close to each other are fixedly connected with a fixing rod 224, the top of the fixing rod 224 is fixedly connected with a limiting plate 225, the folding plate 223 is arc-shaped as a whole, when the telescopic rod one 212 swings towards the inside of the fixed frame 111, it will drive the arc-shaped plate two 215 to move, when the arc-shaped plate two 215 moves, it will contact the protrusion of the folding plate 223, and then continue to move to exert a pushing force on the protrusion of the folding plate 223, since the limiting plate 225 is arranged on the top of the folding plate 223 to limit the folding plate 223, when the protrusion of the folding plate 223 is subjected to the pushing force, the two ends of the folding plate 223 will extend to both sides due to the certain ductility of the folding plate 223 itself.

[0063] The sliding assembly 31 comprises a sliding groove 312 formed in the side wall of the rectangular block 311, a resilient plate 313 is slidingly connected in the sliding groove 312, two rectangular grooves 314 are formed in the side wall of the sliding groove 312, a strip-shaped groove is formed in the side of the rectangular groove 314 away from the resilient plate 313, and springs are fixedly connected to the inner wall of the resilient plate 313;

[0064] The one end of the rectangular block 311 is fixedly connected with the end of the folding plate 223 away from the placing frame 214, when the rectangular block 311 moves towards the side wall of the mounting column, the resilient plate 313 located in the sliding groove 312 will contact the side wall of the mounting column during the movement, and after the resilient plate 313 contacts the mounting column, it will continue to be stretched by the resilient plate 313 to exert a pushing force on the rectangular block 311, so that the rectangular block 311 moves towards the mounting column, during the continuous movement of the rectangular block 311, the resilient plate 313 will be extruded to make the two ends thereof slide in the sliding groove 312, and when the two ends slide in the sliding groove 312, the resilient plate 313 will have a larger curvature to move towards the inside of the sliding groove 312.

[0065] The lifting assembly 32 comprises a sliding block 321 slidingly connected in the two rectangular grooves 314, a plurality of rotating rods 322 are rotatably connected to one side of the sliding block 321 close to the main body 1, and a piston plate 323 is rotatably connected to the end of the rotating rod 322 away from the sliding block 321;

[0066] The rotating member comprises a rubber pad 324 arranged inside the strip-shaped slot, the side of the sliding block 321 away from the main body 1 is fixedly connected with the inner wall of the elastic plate 313, the side walls of the two strip-shaped slots are provided with rubber pads 324, the side walls of the two rubber pads 324 are fixedly connected with the inner wall of the rectangular block 311, when the elastic plate 313 slides to the inside of the sliding slot 312, a pushing force is applied to the sliding block 321, when the sliding block 321 is subjected to the pushing force, it slides inside the sliding rectangular slot 314, when the sliding block 321 moves to the inside of the sliding slot, a pushing force is applied to the rotating rod 322, so that the rotating rod 322 pushes the piston plate 323 to slide to both sides inside the strip-shaped slot, when the piston plate 323 slides, the air inside the strip-shaped slot is extruded, so that the air enters the rubber pad 324 and the rubber pad 324 expands to contact the mounting column.

[0067] In use, first, the fixed frame 111 is opened, the mounting column is moved to the inside of the fixed frame 111, then the fixed frame 111 is closed, after the fixed frame 111 is closed, the fixed frame 111 is slid upward through the sliding rod 112, so as to reduce the occurrence of the case of touching the object on the deck when the mounting column inside the fixed frame 111 is moved through the main body 1, when the mounting column is moved, the ship will shake as a whole when it encounters waves during sailing, therefore, when the ship shakes, the mounting column may be inclined, when the mounting column is inclined, the side wall thereof will extrude the arc-shaped plate one 123, when the arc-shaped plate one 123 is extruded, a pushing force is applied to the connecting plate 122 at both ends thereof, when the connecting plate 122 is subjected to the pushing force, it rotates around the connecting rod 121, when the connecting rod 121 rotates, the pushing rod 211 moves to the inside of the placing frame 214, when the pushing rod 211 moves, a pushing force is applied to the telescopic rod one 212 to make it swing inside the placing frame 214 to the inside of the fixed frame 111, when the telescopic rod one 212 swings to the inside of the fixed frame 111, the clamping plate 213 is simultaneously displaced and contacts the side wall of the mounting column, so as to apply a pushing force to the inclined part of the mounting column to keep it stable, the telescopic rod one 212 drives the clamping plate 213 to correct the inclined mounting column, which reduces the influence on the installation of the mounting column due to the inclination of the mounting column during the operation of the ship, and improves the quality of the installation of the mounting column on the deck of the ship.

[0068] When the telescopic rod 212 swings towards the inside of 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 exert a pushing force on the protrusion of the folding plate 223. Since the folding plate 223 is limited by the limiting plate 225 at the top, when the protrusion of the folding plate 223 is subjected to the pushing force, the folding plate 223 will expand at both ends due to its own ductility. When the folding plate 223 expands at both ends, one end of the folding plate 223 will make the rectangular block 311 contact the mounting column while moving downward. At the same time, the other end of the folding plate 223 will drive the telescopic rod 222 to stretch while sliding downward on the side wall of the fixed frame 221. Therefore, when the telescopic rod 212 swings upward to exert a pushing force on the mounting column to reset it, the mounting column may be displaced upward by the pushing force of the telescopic rod 212. At this time, the arc-shaped plate 215 driven by the telescopic rod 212 will make the folding plate 223 expand downward to drive the rectangular block 311 at one end to swing downward while expanding, thereby exerting a downward swinging force on the mounting column. The interaction between the telescopic rod 212 swinging upward and the mounting column swinging downward will keep the mounting column stable, enhance the accuracy of the installation of the mounting column, and to some extent, reduce the displacement of the mounting column caused by the sway of the ship during installation, thereby improving the efficiency of the installation of the mounting column.

[0069] When the rectangular block 311 moves towards the side wall of the mounting column, the elastic plate 313 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 expand to exert a pushing force on the rectangular block 311, thereby moving the rectangular block 311 towards the mounting column. During the continuous movement of the rectangular block 311, the elastic plate 313 will be compressed, causing both ends to slide inside the sliding groove 312. When the elastic plate 313 slides at both ends of the sliding groove 312, the curvature of the elastic plate 313 will increase, causing it to move towards the inside of the sliding groove 312. When the elastic plate 313 slides towards the inside of the sliding groove 312, it will exert a pushing force on the sliding block 321, causing the sliding block 321 to slide inside the sliding groove 314. When the sliding block 321 moves towards the inside of the sliding groove, it will exert a pushing force on the rotating rod 322, causing the rotating rod 322 to push the piston plate 323 to slide towards both sides inside the strip-shaped groove. When the piston plate 323 slides, it will compress the air inside the strip-shaped groove, causing the air to enter the rubber pad 324 and expand, thereby contacting the mounting column and increasing the contact area between the rectangular block 311 and the mounting column, thereby ensuring stability during movement, reducing the amplitude of the sway during installation of the mounting column to some extent, and improving the accuracy of the installation of the mounting column on the deck of the ship, further ensuring the quality of the installation of the mounting column.

[0070] The preferred embodiments of the application disclosed above are only to help explain the present application. The preferred embodiments are not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the application be limited not with this detailed description, but rather by the claims and the full range of equivalents to which such claims are entitled.

Claims

1. A welding positioning device for a deck bolted column of a ship, comprising a main body (1) having an installation space inside, characterized in that, Also includes; The shrinkage mechanism (2) is fixedly arranged at the top of the main body (1); The clamping mechanism (3) is arranged inside the shrinkage mechanism (2); The shrinkage mechanism (2) includes a push rod (211) arranged inside the placement slot, and the shrinkage mechanism (2) includes: The rotating assembly (21) is arranged on the side wall of the swing assembly (12) by a swing piece; The telescopic assembly (22) is arranged inside the rotating assembly (21) by a fixed piece; The clamping mechanism (3) includes a rectangular block (311) fixedly arranged inside the rotating assembly (21), and the clamping mechanism (3) includes: The sliding assembly (31) is fixedly arranged inside the telescopic assembly (22); The lifting assembly (32) is arranged at the bottom of the sliding assembly (31) by a rotating piece; The rotating assembly (21) includes a telescopic rod (212) slidingly connected to the end of the push rod (211) away from the arc-shaped plate (123), and the end of the telescopic rod (212) away from the main body (1) is rotatably connected with a clamping plate (213); The swing piece includes a placement frame (214) rotatably connected to the end of the telescopic rod (212) close to the main body (1), and the side of the telescopic rod (212) close to each other is rotatably connected with an arc-shaped plate (215), and the end of the push rod (211) away from the telescopic rod (212) is rotatably connected with the end of the arc-shaped plate (123); The fixed piece includes two fixed frames (221) fixedly connected to the inner wall of the placement frame (214), and the side of the fixed frame (221) close to the telescopic rod (212) is slidingly connected with a telescopic rod (222); 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), and the side of the fixed frame (221) close to each other is fixedly connected with a fixed rod (224), and the top of the fixed rod (224) is fixedly connected with a limiting plate (225), and the folding plate (223) is in whole arc shape; The sliding assembly (31) includes a sliding groove (312) opened in the side wall of the rectangular block (311), the inner side of the sliding groove (312) is slidingly connected with an elastic plate (313), the side wall of the sliding groove (312) is provided with two rectangular grooves (314), the side of the rectangular groove (314) away from the elastic plate (313) is provided with a strip-shaped groove, and the inner wall of the elastic plate (313) is fixedly connected with a spring; Wherein, one end of the rectangular block (311) is fixedly connected with the end of the folding plate (223) away from the placement frame (214). The lifting assembly (32) comprises a sliding block (321) slidably connected inside two rectangular grooves (314), the sliding block (321) is rotatably connected with a plurality of rotating rods (322) near one side of the main body (1), and the rotating rod (322) is rotatably connected with a piston plate (323) at one end away from the sliding block (321). The rotating member comprises a rubber pad (324) arranged inside the strip-shaped groove, the side of the sliding block (321) away from the main body (1) is fixedly connected with the inner wall of the elastic plate (313), the side walls of the two strip-shaped grooves are provided with rubber pads (324), and the side walls of the two rubber pads (324) are fixedly connected with the inner wall of the rectangular block (311).

2. A welding positioning device for a deck bolted column of a ship according to claim 1, characterized in that: The main body (1) comprises: A positioning assembly (11), the side wall of the positioning assembly (11) is slidably connected with the inner wall of the main body (1); A swing assembly (12), the side wall of the swing assembly (12) is fixedly connected with the inner wall of the positioning assembly (11).

3. A welding alignment device for a deck bolted column of a marine vessel as defined in claim 2 wherein: The positioning assembly (11) comprises a fixed frame (111) slidably connected inside the main body (1), a plurality of placing grooves are formed in the inner wall of the fixed frame (111), and the side of the fixed frame (111) not slidably connected with the main body (1) is provided in an openable and closable mode.

4. A welding alignment device for a deck bolted column of a marine vessel as defined in claim 3 wherein: The swing assembly (12) comprises a connecting rod (121) fixedly connected at the side wall of the placing groove, the outer surface of the connecting rod (121) is rotatably connected with two connecting plates (122), the end of the two connecting plates (122) away from the connecting rod (121) is rotatably connected with an arc-shaped plate one (123), and the side of the connecting plate (122) close to the fixed frame (111) is fixedly connected with a return spring (124).

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