Metal laser welding equipment for shipbuilding

Abstract

The invention discloses metal laser welding equipment for shipbuilding, and relates to the technical field of laser welding.The metal laser welding equipment for shipbuilding comprises a base, welding equipment is rotatably mounted at the top of the base, a positioning plate is fixedly mounted at the top of the base, and an electric push rod is fixedly mounted on the side, close to the welding equipment, of the positioning plate; a handle is held to rotate a sleeve, the sleeve is rotated to enable a rotating rod to move downwards, the rotating rod moves downwards to drive a clamping plate to move downwards, and the clamping plate moves downwards to clamp a metal plate, so that welding errors caused by the fact that the metal plate is not clamped during welding are avoided; the L-shaped rod is pulled, the L-shaped rod moves to make contact with the inclined face of the transverse rod, the L-shaped rod continues to move to make the transverse rod move, the transverse rod makes contact with the vertical rod, the transverse rod continues to move to make the vertical rod move, and the vertical rod moves to drive the inclined face block.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and specifically relates to a metal laser welding device for shipbuilding. Background Art

[0002] In production and processing, a variety of metal parts are needed and need to be welded. Laser welding is to heat the surface of the workpiece by using a laser beam with a high energy density as a heat source.

[0003] The patent with the patent announcement number CN219274852U relates to a laser welding device for processing precision metal parts, belonging to the field of laser welding. This laser welding device for processing precision metal parts includes a workbench, on the upper surface of which a fixing frame is provided, and a laser welding device is arranged on the fixing frame for welding operations; a clamping assembly. This laser welding device for processing precision metal parts moves the baffle to the front of the precision metal part main body and the laser welding device, which is convenient for shielding the laser welding device, and it is convenient for the operator to view the welding operation of the laser welding device and the precision metal part main body behind through the observation plate, which is convenient for protecting the operator when viewing, and is convenient for protecting the staff from being affected by welding spatter and laser light during the viewing of the processing process, which is beneficial to improving safety.

[0004] In the above patent, the problem of protecting the operator during viewing and protecting the staff from being affected by welding spatter and laser light during the viewing of the processing process, which is beneficial to improving safety, is solved. However, it does not consider that when clamping a metal plate, if the clamping force is too large, the surface of the metal plate may be damaged, thereby reducing the performance of the metal plate. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a metal laser welding device for shipbuilding, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A metal laser welding device for shipbuilding, including a base, on the top of which a welding device is rotatably installed, a positioning plate is fixedly installed on the top of the base, an electric push rod is fixedly installed on one side of the positioning plate close to the welding device, a clamping device is arranged on the top of the base, a cleaning device is arranged on the top of the base, and a protection device is arranged on the top of the base; The clamping device includes a moving plate, a mounting plate, a top plate, a clamping plate, a rotating rod, a sleeve, a handle, an L-shaped rod, a cross bar, a vertical rod and an inclined block. The moving plate is fixedly installed at the free end of the electric push rod, and the mounting plate is fixedly installed on one side of the moving plate close to the welding device. The top plate is fixedly installed on one side of the moving plate close to the welding device. The clamping plate is slidably installed on one side of the moving plate close to the welding device. The rotating rod is rotatably installed on the top of the clamping plate. The rotating rod slidably penetrates through the top plate. The sleeve is rotatably installed on the top of the clamping plate. The sleeve is threadedly connected to the rotating rod. A limiting groove is formed on the circumferential surface of the sleeve. The L-shaped rod is fixedly installed on the circumferential surface of the sleeve. A sliding groove is formed on the top of the top plate. The L-shaped rod is arranged inside the sliding groove. A long groove is formed on the top of the top plate. The cross bar is arranged inside the long groove. The vertical rod is slidably installed on the side of the moving plate away from the welding device. A groove is formed on the top of the base. A clamping groove is formed on the bottom of the mounting plate. The inclined block is arranged inside the groove. The metal plate is welded by setting the welding device, and the metal plate is protected by setting the clamping device to prevent the surface of the metal plate from being damaged due to excessive force applied to the metal plate. The surface damage of the metal plate may cause the performance of the metal plate to decline.

[0007] According to the above technical solution, the L-shaped rod contacts the limiting groove on the circumferential surface of the sleeve. One side of the cross bar close to the L-shaped rod is set as an inclined surface, one side of the cross bar close to the vertical rod is set as an inclined surface, and one side of the vertical rod close to the cross bar is set as an inclined surface. By the inclined surface of the L-shaped rod contacting the cross bar, the inclined surface of the cross bar contacts the inclined surface of the vertical rod, so as to release the limit on the mounting plate.

[0008] According to the above technical solution, the vertical rod contacts the inclined block. The inclined block contacts the mounting plate. A first reset elastic piece is fixedly installed between the inclined block and the base. One side of the inclined block close to the welding device is set as an inclined surface. The reset of the inclined block is realized by setting the elastic force of the first reset elastic piece, so that the inclined block can continue to play a reset role after the moving plate is reset.

[0009] According to the above technical solution, the cleaning device includes a rack, a long plate, a connecting plate, a connecting rod, a scraping plate, a pressing plate, a pressing rod and a gas cylinder. A gear is fixedly installed on the circumferential surface of the rotating rod. An installation groove is formed on the top of the clamping plate. The long plate is slidably installed inside the installation groove. The rack is fixedly installed on one side of the long plate close to the moving plate. The rack meshes with the gear. A circular groove is formed on the side of the long plate away from the moving plate. One end of the connecting rod is slidably installed inside the circular groove. The connecting plate is fixedly installed at the other end of the connecting rod. The scraping plate is fixedly installed at the bottom of the connecting plate. The gas cylinder is fixedly installed on one side of the long plate. The pressing plate is arranged inside the gas cylinder. The pressing rod is fixedly installed on the left side of the pressing plate. The pressing rod slidably penetrates through the gas cylinder. The surface of the metal plate is cleaned by setting the cleaning device to prevent impurities on the metal surface from being welded together with the metal plate.

[0010] According to the above technical solution, a second reset elastic sheet is fixedly installed between the long plate and the installation groove, the gear is a semi-circular gear, and a first reset spring is fixedly installed between the connecting plate and the long plate. By setting the semi-circular gear and the first reset spring, the reciprocating movement of the scraping plate is realized to clean the surface of the metal plate.

[0011] According to the above technical solution, a second reset spring is fixedly installed between the pressing plate and the gas cylinder. The second reset spring is fixedly installed on the right side of the pressing plate, and the pressing rod contacts the positioning plate. By setting the second reset spring, the pressing plate is moved to squeeze the air inside the gas cylinder.

[0012] According to the above technical solution, the protection device includes a fixing plate, a rotating plate, an inclined surface rod, a short plate, a fixing block, a moving block, a threaded rod and a protection plate. The fixing plate is fixedly installed on the top of the base, the rotating plate is rotatably installed on one side of the fixing plate close to the center line of the base, the inclined surface rod is slidably installed on the top of the base, the short plate is fixedly installed on the side of the inclined surface rod close to the fixing plate, the fixing block is fixedly installed on the top of the base, the threaded rod is rotatably installed inside the base, the moving block is threadedly connected to the threaded rod, and the protection plate is fixedly installed on the circumferential surface of the threaded rod. By setting the protection device, the staff is protected to avoid being affected by the splashing welding slag, thus preventing the occurrence of safety accidents.

[0013] According to the above technical solution, a third reset elastic sheet is fixedly installed between the short plate and the fixing block, a first torsion spring is fixedly installed between the fixing plate and the rotating plate, and a second torsion spring is fixedly installed between the threaded rod and the base. The reset of each structure of the protection device is realized by the elastic force of the third reset spring, the first torsion spring and the second torsion spring.

[0014] The present invention provides a metal laser welding device for shipbuilding. It has the following beneficial effects: (1) In this invention, hold the handle and rotate the sleeve. The rotation of the sleeve makes the rotating rod move downward. The downward movement of the rotating rod drives the clamping plate to move downward. The downward movement of the clamping plate clamps the metal plate, avoiding welding errors caused by the unclamped metal plate during welding. After clamping the metal plate, pull the L-shaped rod. The L-shaped rod moves and contacts the inclined surface of the cross bar. The continuous movement of the L-shaped rod makes the cross bar move. The cross bar moves and contacts the vertical rod. The continuous movement of the cross bar makes the vertical rod move. The movement of the vertical rod drives the inclined surface block to move. The movement of the inclined surface block releases the limit on the mounting plate. The L-shaped rod moves until it is caught inside the limit groove, completing the limit on the rotating rod.

[0015] (2) In this invention, when the rotating rod rotates, it drives the rack to move. The movement of the rack drives the long board to move. The movement of the long board drives the connecting rod to move. The movement of the connecting rod drives the connecting plate to move. The movement of the connecting plate drives the scraper to move. The scraper moves to clean the surface of the metal plate, preventing impurities on the metal surface from being welded together with the metal plate, which would lead to a reduction in the metal properties after welding and thus reduce the performance of the metal plate after welding is completed. After the cleaning is completed, the electric push rod is activated. The electric push rod pushes the moving plate to move. The movement of the moving plate causes the pressing plate to move under the influence of the second reset spring. The movement of the pressing plate drives the pressing rod to move. At the same time, the movement of the pressing plate squeezes the air inside the gas cylinder, and the air flows out of the gas cylinder through the air outlet holes, thereby blowing away the impurities on the surface of the metal plate and removing the impurities from the surface of the metal plate, avoiding the presence of impurities at the weld when welding the metal plate.

[0016] (3) In this invention, when the electric push rod is activated, the moving end of the electric push rod moves to drive the moving plate to move. The movement of the moving plate drives the metal plate to move towards the welding position. When the metal plate moves into contact with the rotating plate, the metal plate continues to move, causing the rotating plate to rotate. When the rotating plate rotates into contact with the inclined surface of the inclined surface rod, the rotating plate continues to rotate, causing the inclined surface rod to move. The movement of the inclined surface rod contacts the moving block. The inclined surface rod continues to move, causing the moving block to move. The movement of the moving block causes the threaded rod to rotate. The rotation of the threaded rod causes the protective plate to rotate. After the metal plate reaches the welding position, the protective plate can be automatically raised for protection, preventing the staff from being affected by the splashing welding slag during the welding operation and improving safety. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 is of the present invention Figure 1 schematic diagram of the enlarged structure of part A; Figure 4 is of the present invention Figure 2 schematic diagram of the enlarged structure of part C; Figure 5 is a schematic diagram of the structure of the installation device position of the present invention; Figure 6 is a schematic diagram of the internal structure of the gas cylinder of the present invention; Figure 7 is of the present invention Figure 1 schematic diagram of the enlarged structure of part B; Figure 8 is a schematic diagram of the structure of the protective device part of the present invention.

[0018] In the figure: 1, base; 2, welding device; 3, positioning plate; 4, electric push rod; 501, moving plate; 502, mounting plate; 503, top plate; 504, clamping plate; 505, rotating rod; 506, sleeve; 507, handle; 508, L-shaped rod; 509, cross bar; 510, vertical rod; 511, inclined block; 601, rack; 602, long plate; 603, connecting plate; 604, connecting rod; 605, scraping plate; 606, pressing plate; 607, pressing rod; 608, gas cylinder; 701, fixing plate; 702, rotating plate; 703, inclined rod; 704, short plate; 705, fixing block; 706, moving block; 707, threaded rod; 708, protective plate. Detailed implementation manner

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 8 , an embodiment of the present invention is: a metal laser welding device for shipbuilding, including a base 1, a welding device 2 is rotatably installed on the top of the base 1, a positioning plate 3 is fixedly installed on the top of the base 1, an electric push rod 4 is fixedly installed on one side of the positioning plate 3 close to the welding device 2, a clamping device is arranged on the top of the base 1, and a cleaning device is arranged on the top of the base 1; The clamping device includes a moving plate 501, a mounting plate 502, a top plate 503, a clamping plate 504, a rotating rod 505, a sleeve 506, a handle 507, an L-shaped rod 508, a cross bar 509, a vertical rod 510 and an inclined block 511. The moving plate 501 is fixedly installed at the free end of the electric push rod 4. The mounting plate 502 is fixedly installed on one side of the moving plate 501 close to the welding device 2. The top plate 503 is fixedly installed on one side of the moving plate 501 close to the welding device 2. The clamping plate 504 is slidably installed on one side of the moving plate 501 close to the welding device 2. The rotating rod 505 is rotatably installed on the top of the clamping plate 504. The rotating rod 505 slidably penetrates through the top plate 503. The sleeve 506 is rotatably installed on the top of the clamping plate 504. The sleeve 506 is threadedly connected to the rotating rod 505. A limiting groove is provided on the circumferential surface of the sleeve 506. The L-shaped rod 508 is fixedly installed on the circumferential surface of the sleeve 506. A sliding groove is provided on the top of the top plate 503. The L-shaped rod 508 is arranged inside the sliding groove. A long groove is provided on the top of the top plate 503. The cross bar 509 is arranged inside the long groove. The vertical rod 510 is slidably installed on one side of the moving plate 501 away from the welding device 2. A groove is provided on the top of the base 1. A clamping groove is provided on the bottom of the mounting plate 502. The inclined block 511 is arranged inside the groove. The metal plate is welded by setting the welding device 2. The metal plate is protected by setting the clamping device to prevent the surface of the metal plate from being damaged due to excessive force applied to the metal plate. The performance of the metal plate may decline due to the damage to the surface of the metal plate.

[0021] The L-shaped rod 508 contacts the limiting groove on the circumferential surface of the sleeve 506. One side of the cross bar 509 close to the L-shaped rod 508 is set as an inclined surface. One side of the cross bar 509 close to the vertical rod 510 is set as an inclined surface. One side of the vertical rod 510 close to the cross bar 509 is set as an inclined surface. By the contact between the L-shaped rod 508 and the inclined surface of the cross bar 509, the inclined surface of the cross bar 509 contacts the inclined surface of the vertical rod 510, so as to release the limit on the mounting plate 502.

[0022] The vertical rod 510 contacts the inclined block 511. The inclined block 511 contacts the mounting plate 502. A first reset elastic piece is fixedly installed between the inclined block 511 and the base 1. One side of the inclined block 511 close to the welding device 2 is set as an inclined surface. The reset of the inclined block 511 is realized by setting the elastic force of the first reset elastic piece, so that the inclined block 511 can continue to play a reset role after the moving plate 501 is reset.

[0023] The cleaning device includes a rack 601, a long plate 602, a connecting plate 603, a connecting rod 604, a scraper 605, a pressing plate 606, a pressing rod 607 and a gas cylinder 608. A gear is fixedly installed on the circumferential surface of the rotating rod 505. An installation groove is formed at the top of the clamping plate 504. The long plate 602 is slidably installed inside the installation groove. The rack 601 is fixedly installed on the side of the long plate 602 close to the moving plate 501. The rack 601 meshes with the gear. A circular groove is formed on the side of the long plate 602 away from the moving plate 501. One end of the connecting rod 604 is slidably installed inside the circular groove. The connecting plate 603 is fixedly installed at the other end of the connecting rod 604. The scraper 605 is fixedly installed at the bottom of the connecting plate 603. The gas cylinder 608 is fixedly installed on one side of the long plate 602. The pressing plate 606 is arranged inside the gas cylinder 608. The pressing rod 607 is fixedly installed on the left side of the pressing plate 606. The pressing rod 607 slidably penetrates through the gas cylinder 608. By providing the cleaning device, the surface of the metal plate is cleaned to prevent impurities on the metal surface from being welded together with the metal plate.

[0024] A second reset elastic piece is fixedly installed between the long plate 602 and the installation groove. The gear is a semi-circular gear. A first reset spring is fixedly installed between the connecting plate 603 and the long plate 602. By providing the semi-circular gear and the first reset spring, the reciprocating movement of the scraper 605 is realized to clean the surface of the metal plate.

[0025] A second reset spring is fixedly installed between the pressing plate 606 and the gas cylinder 608. The second reset spring is fixedly installed on the right side of the pressing plate 606. The pressing rod 607 contacts the positioning plate 3. By providing the second reset spring, the pressing plate 606 is moved to squeeze the air inside the gas cylinder 608.

[0026] When this embodiment works: The staff places the metal plate to be welded on the surface of the installation plate 502. After placing it well, hold the handle 507 and rotate the sleeve 506. Rotating the sleeve 506 causes the rotating rod 505 to move downward. The downward movement of the rotating rod 505 drives the clamping plate 504 to move downward. The clamping plate 504 moves downward to clamp the metal plate. After clamping the metal plate, pull the L-shaped rod 508. The L-shaped rod 508 moves and contacts the inclined surface of the cross bar 509. The continuous movement of the L-shaped rod 508 causes the cross bar 509 to move. The cross bar 509 moves and contacts the vertical rod 510. The continuous movement of the cross bar 509 causes the vertical rod 510 to move. The movement of the vertical rod 510 drives the inclined surface block 511 to move. The movement of the inclined surface block 511 releases the limit on the installation plate 502. The L-shaped rod 508 moves until it is caught in the limit groove to complete the limit on the rotating rod 505.

[0027] Meanwhile, when the rotating rod 505 rotates, it drives the rack 601 to move. The movement of the rack 601 drives the long plate 602 to move. The movement of the long plate 602 drives the connecting rod 604 to move. The movement of the connecting rod 604 drives the connecting plate 603 to move. The movement of the connecting plate 603 drives the scraping plate 605 to move. The scraping plate 605 moves to clean the surface of the metal plate. After the cleaning is completed, the electric push rod 4 is started. The electric push rod 4 pushes the moving plate 501 to move. The movement of the moving plate 501 causes the pressing plate 606 to move under the influence of the second reset spring. The movement of the pressing plate 606 drives the pressing rod 607 to move. At the same time, the movement of the pressing plate 606 squeezes the air inside the gas cylinder 608. The air flows out of the gas cylinder 608 through the air outlet hole, thereby removing the impurities on the surface of the metal plate.

[0028] Please refer to Figures 1 - 8 , on the basis of the above embodiment, in another embodiment of the present invention, a protection device is provided on the top of the base 1. The protection device includes a fixing plate 701, a rotating plate 702, an inclined surface rod 703, a short plate 704, a fixing block 705, a moving block 706, a threaded rod 707 and a protection plate 708. The fixing plate 701 is fixedly installed on the top of the base 1. The rotating plate 702 is rotatably installed on one side of the fixing plate 701 close to the center line of the base 1. The inclined surface rod 703 is slidably installed on the top of the base 1. The short plate 704 is fixedly installed on one side of the inclined surface rod 703 close to the fixing plate 701. The fixing block 705 is fixedly installed on the top of the base 1. The threaded rod 707 is rotatably installed inside the base 1. The moving block 706 is threadedly connected to the threaded rod 707. The protection plate 708 is fixedly installed on the circumferential surface of the threaded rod 707. By providing the protection device, the staff is protected to avoid being affected by the splashing welding slag, thereby preventing the occurrence of safety accidents.

[0029] A third reset spring piece is fixedly installed between the short plate 704 and the fixing block 705. A first torsion spring is fixedly installed between the fixing plate 701 and the rotating plate 702. A second torsion spring is fixedly installed between the threaded rod 707 and the base 1. The reset of each structure of the protection device is realized by the elastic force of the third reset spring, the first torsion spring and the second torsion spring.

[0030] During the operation of this embodiment: The electric push rod 4 is started. The moving end of the electric push rod 4 moves to drive the moving plate 501 to move. The movement of the moving plate 501 drives the metal plate to move towards the welding position. When the metal plate moves to contact the rotating plate 702, the metal plate continues to move to make the rotating plate 702 rotate. The rotating plate 702 rotates to contact the inclined surface of the inclined surface rod 703. The rotating plate 702 continues to rotate to make the inclined surface rod 703 move. The inclined surface rod 703 moves to contact the moving block 706. The inclined surface rod 703 continues to move to make the moving block 706 move. The movement of the moving block 706 causes the threaded rod 707 to rotate. The rotation of the threaded rod 707 causes the protection plate 708 to rotate.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal laser welding device for shipbuilding, comprising a base (1), characterized in that: A welding device (2) is rotatably mounted on the top of the base (1), a positioning plate (3) is fixedly mounted on the top of the base (1), an electric push rod (4) is fixedly mounted on the side of the positioning plate (3) close to the welding device (2), a clamping device is arranged on the top of the base (1), a cleaning device is arranged on the top of the base (1), and a protective device is arranged on the top of the base (1); The clamping device comprises a movable plate (501), a mounting plate (502), a top plate (503), a clamping plate (504), a rotating rod (505), a sleeve (506), a handle (507), an L-shaped rod (508), a cross bar (509), a vertical rod (510) and an inclined block (511); the movable plate (501) is fixedly mounted on a free end of the electric push rod (4); the mounting plate (502) is fixedly mounted on a side of the movable plate (501) close to the welding device (2); the top plate (503) is fixedly mounted on a side of the movable plate (501) close to the welding device (2); the clamping plate (504) is slidably mounted on a side of the movable plate (501) close to the welding device (2); the rotating rod (505) is rotatably mounted on the top of the clamping plate (504); and the rotating rod (50 5) slides through the top plate (503), the sleeve (506) is rotatably mounted on the top of the clamping plate (504), the sleeve (506) is threadedly connected to the rotating rod (505), a limiting groove is provided on the circumferential surface of the sleeve (506), the L-shaped rod (508) is fixedly mounted on the circumferential surface of the sleeve (506), a sliding groove is provided on the top of the top plate (503), the L-shaped rod (508) is arranged inside the sliding groove, a long groove is provided on the top of the top plate (503), the cross bar (509) is arranged inside the long groove, the vertical bar (510) is slidably mounted on the side of the movable plate (501) away from the welding device (2), the top of the base (1) is provided with a groove, the bottom of the mounting plate (502) is provided with a slot, and the inclined surface block (511) is arranged inside the groove.

2. The metal laser welding equipment for shipbuilding according to claim 1, characterized in that: The L-shaped rod (508) contacts the limiting groove on the circumferential surface of the sleeve (506); a side of the cross rod (509) close to the L-shaped rod (508) is set as an inclined surface; a side of the cross rod (509) close to the vertical rod (510) is set as an inclined surface; and a side of the vertical rod (510) close to the cross rod (509) is set as an inclined surface.

3. The metal laser welding equipment for shipbuilding according to claim 2 is characterized in that: The vertical rod (510) contacts the inclined surface block (511), the inclined surface block (511) contacts the mounting plate (502), a reset spring sheet 1 is fixedly mounted between the inclined surface block (511) and the base (1), and a side of the inclined surface block (511) close to the welding device (2) is arranged as an inclined surface.

4. The metal laser welding equipment for shipbuilding according to claim 3 is characterized in that: The cleaning device comprises a rack (601), a long plate (602), a connecting plate (603), a connecting rod (604), a scraper (605), a pressing plate (606), a pressing rod (607) and a gas cylinder (608); a gear is fixedly mounted on the circumferential surface of the rotating rod (505); a mounting groove is provided on the top of the clamping plate (504); the long plate (602) is slidably mounted inside the mounting groove; the rack (601) is fixedly mounted on a side of the long plate (602) close to the moving plate (501); the rack (601) is meshed with the gear; the long plate (602) is 02) A circular groove is provided on the side away from the movable plate (501), one end of the connecting rod (604) is slidably mounted inside the circular groove, the connecting plate (603) is fixedly mounted on the other end of the connecting rod (604), the scraper (605) is fixedly mounted on the bottom of the connecting plate (603), the gas cylinder (608) is fixedly mounted on one side of the long plate (602), the pressing plate (606) is arranged inside the gas cylinder (608), the pressing rod (607) is fixedly mounted on the left side of the pressing plate (606), and the pressing rod (607) slides through the gas cylinder (608).

5. The metal laser welding equipment for shipbuilding according to claim 4 is characterized in that: A second reset spring is fixedly installed between the long plate (602) and the mounting groove, the gear is a semicircular gear, and a first reset spring is fixedly installed between the connecting plate (603) and the long plate (602).

6. The metal laser welding equipment for shipbuilding according to claim 5, characterized in that: A second return spring is fixedly installed between the pressing plate (606) and the gas cylinder (608), and the second return spring is fixedly installed on the right side of the pressing plate (606). The pressing rod (607) is in contact with the positioning plate (3).

7. The metal laser welding equipment for shipbuilding according to claim 6, characterized in that: The protective device comprises a fixed plate (701), a rotating plate (702), an inclined rod (703), a short plate (704), a fixed block (705), a movable block (706), a threaded rod (707) and a protective plate (708), wherein the fixed plate (701) is fixedly mounted on the top of the base (1), the rotating plate (702) is rotatably mounted on a side of the fixed plate (701) close to the center line of the base (1), the inclined rod (703) is slidably mounted on the top of the base (1), the short plate (704) is fixedly mounted on a side of the inclined rod (703) close to the fixed plate (701), the fixed block (705) is fixedly mounted on the top of the base (1), the threaded rod (707) is rotatably mounted inside the base (1), the movable block (706) is threadedly connected to the threaded rod (707), and the protective plate (708) is fixedly mounted on the circumferential surface of the threaded rod (707).

8. The metal laser welding equipment for shipbuilding according to claim 7, characterized in that: A third resetting spring is fixedly installed between the short plate (704) and the fixed block (705), a first torsion spring is fixedly installed between the fixed plate (701) and the rotating plate (702), and a second torsion spring is fixedly installed between the threaded rod (707) and the base (1).

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