Laser welding device for metal product production

Abstract

The invention relates to the technical field of metal product laser welding, and discloses a laser welding device for metal product production, which comprises a processing machine tool, a laser welding mechanism is arranged above the processing machine tool, a supporting mechanism is arranged below the laser welding mechanism, and a limiting mechanism is arranged above the supporting mechanism. According to the laser welding device for metal product production, the supporting mechanism supports a metal plate, the limiting mechanism fixes the metal plate, welding machining of the laser welding mechanism is facilitated, the large gear drives the small gear to rotate, the small gear is engaged between the large gear and the inner gear ring, the rotating stability of a welding gun can be improved, the welding position can be conveniently adjusted, and welding efficiency is improved. The welding height can be conveniently adjusted through the lifting sliding table, when the metal plate is too wide, the electric air cylinder drives the extending clamping plate to be expanded outwards, the supporting width can be conveniently and flexibly adjusted, the limiting mechanisms are arranged at the four corners of the supporting mechanism, and when the extending clamping plate moves, the limiting mechanism on one side can also move along with the extending clamping plate.

Description

Technical Field

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

[0002] A laser welding machine, also often referred to as a laser welder or a laser beam welder, is a machine used in laser welding of material processing. It uses high-energy laser pulses to locally heat a small area of the material. The energy of the laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for welding thin-walled materials, precision parts, and metal products.

[0003] In the prior art, such as the "Laser Welding Equipment for Metal Plates" with the Chinese patent number: CN117283134B, it includes two support frames. Between the two support frames, there are two worktables. The two worktables can move along the length direction of the support frames. On both sides of the two worktables close to each other, there are baffle plates. On the worktables, there is a moving component for moving the baffle plates up and down. On the worktables, there is a calibration component for moving the metal plates. On the support frames, there is a robotic arm located between the two worktables. On the robotic arm, there is a laser welding head for performing laser welding. Place the two metal plates on the two worktables respectively. Move the metal plates on the worktables through the calibration component. Move the two worktables closer to each other. Move the baffle plates downward. After the two worktables are in contact, the sides of the two metal plates to be welded are in contact. The laser welding head performs laser welding on the metal plates, improving the laser welding efficiency.

[0004] However, in the prior art, although the laser welding efficiency is improved by placing the two metal plates on the two worktables respectively and moving the metal plates on the worktables through the calibration component, the laser welding head is inconvenient to rotate and adjust the position, the limitation of the metal plates is not flexible enough, and it cannot be adjusted according to the different widths and thicknesses, affecting the actual use effect of welding. Therefore, there is an urgent need for a laser welding device for the production of metal products. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the present invention is to provide a laser welding device for the production of metal products to solve the problems in the above background art that the laser welding head is inconvenient to rotate and adjust the position, the limitation of the metal plates is not flexible enough, and it cannot be adjusted according to the different widths and thicknesses, affecting the actual use effect of welding.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present invention provides the following technical solution: A laser welding device for metal product production, including a processing machine tool, above which a laser welding mechanism is provided, below which a support mechanism is provided, and above which a limiting mechanism is provided;

[0009] The laser welding mechanism includes a mounting bracket, on which a circular opening is provided, at the top of the mounting bracket a fixed bracket is provided, at the bottom of the fixed bracket a fixed circular plate is provided, at the center of the fixed circular plate a rotating clamping hole is provided, at the top and bottom of the fixed circular plate symmetrically distributed large gears are respectively rotatably provided, on one side of the large gear a small gear is meshed and connected, on one side of the small gear an internal gear ring is meshed and connected, between the two large gears a first pin shaft adapted to the rotating clamping hole is provided for connection and fixation, between the two small gears a second pin shaft is provided for connection and fixation, and at the bottom end of the second pin shaft a welding torch is provided.

[0010] As a preferred technical solution of the present invention, the support mechanism includes a lifting slide, which is symmetrically arranged on the top of the processing machine tool, on one side of the lifting slide a limiting support plate is provided, between the limiting support plates symmetrically distributed lead screws are rotatably provided, at one end of the lead screw a second servo motor is provided, and between the limiting support plates a metal plate support assembly is provided.

[0011] As a preferred technical solution of the present invention, the limiting mechanism includes a connecting bottom shell, inside the inner wall of which a fixed sleeve is rotatably provided, inside the inner wall of the fixed sleeve a telescopic support rod is slidably provided, at the top end of the telescopic support rod a fixed sleeve housing is provided, inside the inner wall of the fixed sleeve housing a telescopic support plate is slidably provided, and on one side of the telescopic support plate a limiting clamping plate is provided.

[0012] As a preferred technical solution of the present invention, the metal plate support assembly includes a support base, at the bottom of which a lead screw opening is provided, at the top of which a moving card slot is provided, inside the inner wall of the moving card slot an extension card plate adapted thereto is slidably provided, at one side of the bottom of the extension card plate the ends of symmetrically distributed electric cylinders are connected, the other ends of the electric cylinders are connected to the bottom of the support base, on one side of the extension card plate first limit blocks are symmetrically provided, and on one side of the support base second limit blocks adapted to the first limit blocks are provided.

[0013] As a preferred technical solution of the present invention, a first rotating hole is provided on the limit clamping plate, and a second rotating hole is also provided on the limit clamping plate. A rotating clamping ring is rotatably arranged inside the second rotating hole. Meshing teeth are evenly arranged on the outer circumference of the top of the rotating clamping ring. One side of the meshing teeth is meshed and connected with a transmission gear. A connecting rod is arranged on the inner wall of the transmission gear. A handwheel is arranged at the top end of the connecting rod, and the bottom end of the connecting rod is rotatably connected to the inner wall of the first rotating hole.

[0014] As a preferred technical solution of the present invention, a threaded groove is provided on the inner wall of the rotating clamping ring, and a threaded rod adapted thereto is threadedly connected to the inner wall of the threaded groove. A limit top plate is arranged at the top end of the threaded rod, and a limit pressing plate is arranged at the bottom end of the threaded rod.

[0015] As a preferred technical solution of the present invention, the internal gear ring is arranged outside the large gear and the small gear, and the internal gear ring is symmetrically arranged on the mounting bracket.

[0016] As a preferred technical solution of the present invention, the fixed circular plate and the fixed bracket are fixedly connected by arranging connecting support rods. A first servo motor is arranged at the top end of the first pin shaft, and the first servo motor is connected to the bottom of the fixed bracket.

[0017] As a preferred technical solution of the present invention, the limit support plate is fixedly connected to the lifting slide by arranging fastening bolts.

[0018] As a preferred technical solution of the present invention, support feet are arranged at the four corners of the bottom of the processing machine tool.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. For the laser welding device for metal product production, the support mechanism supports the metal plate, and the limit mechanism fixes the metal plate, which is convenient for the laser welding mechanism to carry out welding processing. The first servo motor drives the first pin shaft to rotate, and two large gears are fixed on both sides of the fixed circular plate, thereby driving the two large gears to rotate. The gap formed between the fixed circular plate and the circular opening is convenient for rotating and limiting the second pin shaft. The large gear drives the small gear to rotate, and the small gear meshing between the large gear and the internal gear ring helps to improve the stability of the welding torch rotation, facilitate the adjustment of the welding position, and is flexible and convenient;

[0021] 2. For the laser welding device for metal product production, the lifting slide drives the limit support plate to lift, which is convenient for adjusting the welding height. When the metal plate is too wide, the electric cylinder drives the extension clamping plate to expand outwards, which is convenient for flexibly adjusting the support width. The limit mechanism is arranged at the four corners of the support mechanism, and one side of the limit mechanism will also move when the extension clamping plate moves, which is convenient for flexible limiting;

[0022] 3. The laser welding device for metal product production is convenient for fixing the sleeve to rotate and adjust the angle by connecting the bottom shell. The telescopic support rod slides on the inner wall of the fixed sleeve to facilitate lifting adjustment according to the thickness of the metal plate. The telescopic support plate moves inside the fixed housing to facilitate telescopic adjustment according to the width of the metal plate. Rotating the handwheel drives the connecting rod to rotate, the connecting rod drives the transmission gear to rotate, and the transmission gear drives the screw rod to perform lifting adjustment through the thread groove, which is convenient for pressing the metal plate with the limit pressing plate to limit and fix it, preventing the metal plate from slipping during welding and helping to improve the welding stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 6 is a schematic diagram of the overall structure of a laser welding device for metal product production in an embodiment of the present invention;

[0024] Figure 2 FIG. 10 is a schematic diagram of the bottom structure of a laser welding device for metal product production in an embodiment of the present invention;

[0025] Figure 3 FIG. 14 is an exploded structural schematic diagram of a laser welding mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0026] Figure 4 FIG. 18 is a sectional structural schematic diagram of a laser welding mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0027] Figure 5 FIG. 22 is a partial structural schematic diagram of a laser welding mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0028] Figure 6 FIG. 26 is a schematic diagram of a support mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0029] Figure 7 FIG. 30 is a schematic diagram of a metal plate support assembly of a laser welding device for metal product production in an embodiment of the present invention;

[0030] Figure 8 FIG. 34 is a schematic diagram of a limiting mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0031] Figure 9 FIG. 38 is a sectional structural schematic diagram of a limiting mechanism of a laser welding device for metal product production in an embodiment of the present invention;

[0032] Figure 10 FIG. 42 is an exploded structural schematic diagram of a limiting mechanism of a laser welding device for metal product production in an embodiment of the present invention.

[0033] In the figure:

[0034] 1. Processing machine tool;

[0035] 2. Laser welding mechanism; 201. Mounting bracket; 202. Circular opening; 203. Fixed bracket; 204. Fixed circular plate; 205. Connecting support rod; 206. Rotating clamping hole; 207. Large gear; 208. Small gear; 209. Inner gear ring; 210. First pin shaft; 211. First servo motor; 212. Second pin shaft; 213. Welding torch;

[0036] 3. Support mechanism; 301. Lifting slide; 302. Limit support plate; 303. Tightening bolt; 304. Lead screw; 305. Second servo motor; 36. Metal plate support assembly; 361. Support base; 362. Lead screw opening; 363. Moving card slot; 364. Extension card plate; 365. Electric cylinder; 366. First limit block; 367. Second limit block;

[0037] 4. Limiting mechanism; 401. Connecting bottom shell; 402. Fixed sleeve; 403. Telescopic support rod; 404. Fixed housing; 405. Telescopic support plate; 406. Limit clamping plate; 407. First rotation hole; 408. Second rotation hole; 409. Rotating clamping ring; 410. Engaging teeth; 411. Transmission gear; 412. Connecting rod; 413. Handwheel; 414. Thread groove; 415. Threaded rod; 416. Limit top plate; 417. Limit pressure plate;

[0038] 5. Support feet. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1 - 10, the present invention provides a technical solution: a laser welding device for metal product production, including a processing machine tool 1, a laser welding mechanism 2 is arranged above the processing machine tool 1, a support mechanism 3 is arranged below the laser welding mechanism 2, a limiting mechanism 4 is arranged above the support mechanism 3, and support feet 5 are arranged at the four corners of the bottom of the processing machine tool 1. The laser welding mechanism 2 includes an installation bracket 201, a circular opening 202 is arranged on the installation bracket 201, a fixed bracket 203 is arranged at the top of the installation bracket 201, a fixed circular plate 204 is arranged at the bottom of the fixed bracket 203, a rotating clamping hole 206 is arranged at the center of the fixed circular plate 204, large gears 207 symmetrically distributed are respectively arranged at the top and bottom of the fixed circular plate 204, a small gear 208 is meshed and connected to one side of the large gear 207, an internal gear ring 209 is meshed and connected to one side of the small gear 208, the two large gears 207 are connected and fixed by a first pin shaft 210 adapted to the rotating clamping hole 206, the two small gears 208 are connected and fixed by a second pin shaft 212, a welding torch 213 is arranged at the bottom end of the second pin shaft 212, the internal gear ring 209 is arranged outside the large gears 207 and the small gears 208, and the internal gear ring 209 is symmetrically arranged on the installation bracket 201. The fixed circular plate 204 and the fixed bracket 203 are connected and fixed by a connecting support rod 205. The top end of the first pin shaft 210 is provided with a first servo motor 211, and the first servo motor 211 is connected to the bottom of the fixed bracket 203.

[0041] Specifically, the support mechanism 3 supports the metal plate, and the limiting mechanism 4 fixes the metal plate, which is convenient for the laser welding mechanism 2 to perform welding processing. The internal gear ring 209 is installed at the top and bottom of the installation bracket 201. The first pin shaft 210 fixes the two large gears 207, and the second pin shaft 212 fixes the two small gears 208. The fixed bracket 203 is fixed on the installation bracket 201 by bolts, which is convenient for installing the first servo motor 211. The first servo motor 211 drives the first pin shaft 210 to rotate. The two large gears 207 are fixed on both sides of the fixed circular plate 204, thereby driving the two large gears 207 to rotate. The gap formed between the fixed circular plate 204 and the circular opening facilitates the rotational limit of the second pin shaft 212. Driving the small gear 208 to rotate by the large gear 207, and the meshing of the small gear 208 between the large gear 207 and the internal gear ring 209 helps to improve the rotational stability of the welding torch 213, facilitates the adjustment of the welding position, and is flexible and convenient.

[0042] For the convenience of those skilled in the art to fully understand the specific structure and principle of the support mechanism 3, a further description of the support mechanism 3 is made. In this embodiment, the support mechanism 3 includes a lifting slide 301, which is symmetrically arranged on the top of the processing machine tool 1. A limiting support plate 302 is arranged on one side of the lifting slide 301. The limiting support plate 302 is connected and fixed to the lifting slide 301 by setting fastening bolts 303. Symmetrically distributed lead screws 304 are rotatably arranged between the limiting support plates 302. A second servo motor 305 is arranged at one end of the lead screw 304. A metal plate support assembly 36 is arranged between the limiting support plates 302. The metal plate support assembly 36 includes a support base 361. A lead screw 304 opening is arranged at the bottom of the support base 361. A moving card slot 363 is opened at the top of the support base 361. An extension card plate 364 adapted to it is slidably arranged on the inner wall of the moving card slot 363. One end of a symmetrically distributed electric cylinder 365 is connected to the bottom side of the extension card plate 364. The other end of the electric cylinder 365 is connected to the bottom of the support base 361. First limit blocks 366 are symmetrically arranged on one side of the extension card plate 364. A second limit block 367 adapted to the first limit blocks 366 is arranged on one side of the support base 361.

[0043] Specifically, the lifting slide 301 drives the limiting support plate 302 to lift, facilitating the adjustment of the welding height. The second servo motor 305 drives the lead screw 304 to rotate. The lead screw 304 is connected to the inside of the lead screw 304 opening through a nut seat, facilitating the linear movement of the support base 361. The support base 361 cooperates with the extension card plate 364 to facilitate the support of the metal plate. When the metal plate is too wide, the electric cylinder 365 drives the extension card plate 364 to widen outwards, facilitating the flexible adjustment of the support width. The first limit blocks 366 cooperate with the second limit blocks 367 to prevent the extension card plate 364 from disengaging.

[0044] For the convenience of those skilled in the art to fully understand the specific structure and principle of the limit mechanism 4, a further description of the limit mechanism 4 is made. In this embodiment, the limit mechanism 4 includes a connecting bottom shell 401. A fixed sleeve 402 is rotatably arranged on the inner wall of the connecting bottom shell 401. A telescopic support rod 403 is slidably arranged on the inner wall of the fixed sleeve 402. A fixed sleeve housing 404 is arranged at the top end of the telescopic support rod 403. A telescopic support plate 405 is slidably arranged on the inner wall of the fixed sleeve housing 404. A limit clamping plate 406 is arranged on one side of the telescopic support plate 405. A first rotation hole 407 is arranged on the limit clamping plate 406. The limit clamping plate 406 is also provided with a second rotation hole 408. A rotating clamping ring 409 is rotatably arranged inside the second rotation hole 408. A plurality of meshing teeth 410 are evenly arranged on the outer circumference of the top of the rotating clamping ring 409. One side of the meshing teeth 410 is meshed and connected with a transmission gear 411. A connecting rod 412 is arranged on the inner wall of the transmission gear 411. A handwheel 413 is arranged at the top end of the connecting rod 412. The bottom end of the connecting rod 412 is rotatably connected to the inner wall of the first rotation hole 407. A threaded groove 414 is arranged on the inner wall of the rotating clamping ring 409. A threaded rod 415 adapted to it is threadedly connected to the inner wall of the threaded groove 414. A limit top plate 416 is arranged at the top end of the threaded rod 415. A limit pressing plate 417 is arranged at the bottom end of the threaded rod 415.

[0045] Specifically, the limit mechanism 4 is arranged at the four corners of the support mechanism 3. When the extended clamping plate 364 moves, one of the limit mechanisms 4 will also move accordingly, which is convenient for flexible limiting. The connecting bottom shell 401 facilitates the rotation and angle adjustment of the fixed sleeve 402. The telescopic support rod 403 slides on the inner wall of the fixed sleeve 402, which is convenient for lifting adjustment according to the thickness of the metal plate. The telescopic support plate 405 moves inside the fixed sleeve housing 404, which is convenient for telescopic adjustment according to the width of the metal plate. Rotating the handwheel 413 drives the connecting rod 412 to rotate. The connecting rod 412 drives the transmission gear 411 to rotate. The transmission gear 411 drives the screw rod to perform lifting adjustment through the threaded groove 414, which is convenient for pressing the metal plate with the limit pressing plate 417 to limit and fix it, preventing the metal plate from slipping during welding and helping to improve the stability of welding.

[0046] Working principle: First, the support mechanism 3 supports the metal plate, and the limiting mechanism 4 fixes the metal plate, facilitating the welding process by the laser welding mechanism 2. Inner gear rings 209 are installed at the top and bottom of the mounting bracket 201. The first pin shaft 210 fixes two large gears 207, and the second pin shaft 212 fixes two small gears 208. The fixing bracket 203 is fixed to the mounting bracket 201 by bolts, facilitating the installation of the first servo motor 211. The first servo motor 211 drives the first pin shaft 210 to rotate. The two large gears 207 are fixed on both sides of the fixed circular plate 204, thereby driving the two large gears 207 to rotate. The gap formed between the fixed circular plate 204 and the circular opening facilitates the rotational limit of the second pin shaft 212. The large gear 207 drives the small gear 208 to rotate. The meshing of the small gear 208 between the large gear 207 and the inner gear ring 209 helps to improve the stability of the rotation of the welding torch 213, facilitating the adjustment of the welding position, which is flexible and convenient.

[0047] The lifting slide 301 drives the limiting support plate 302 to move up and down, facilitating the adjustment of the welding height. The second servo motor 305 drives the lead screw 304 to rotate. The lead screw 304 is connected to the inner opening of the lead screw 304 through a nut seat, facilitating the linear movement of the support base 361. The support base 361 cooperates with the extension card plate 364 to facilitate the support of the metal plate. When the metal plate is too wide, the electric cylinder 365 drives the extension card plate 364 to expand outward, facilitating the flexible adjustment of the support width. The first limit block 366 and the second limit block 367 cooperate to prevent the extension card plate 364 from disengaging. The limiting mechanism 4 is arranged at the four corners of the support mechanism 3. When the extension card plate 364 moves, one side of the limiting mechanism 4 will also move accordingly, facilitating flexible limiting. The connection bottom shell 401 facilitates the rotation and angle adjustment of the fixed sleeve 402. The telescopic support rod 403 slides on the inner wall of the fixed sleeve 402, facilitating the lifting adjustment according to the thickness of the metal plate. The telescopic support plate 405 moves inside the fixed sleeve 404, facilitating the telescopic adjustment according to the width of the metal plate. Rotating the handwheel 413 drives the connecting rod 412 to rotate. The connecting rod 412 drives the transmission gear 411 to rotate. The transmission gear 411 drives the screw rod to move up and down through the thread groove 414, facilitating the pressing of the limiting pressure plate 417 on the metal plate to fix it, preventing the metal plate from slipping during welding, and helping to improve the welding stability.

[0048] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than limiting the protection scope of the present invention. Any simple modification or equivalent replacement of the technical solution of the present invention by those of ordinary skill in the art does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A laser welding device for metal product production, characterized in that: The invention comprises a processing machine tool (1), wherein a laser welding mechanism (2) is arranged above the processing machine tool (1), a supporting mechanism (3) is arranged below the laser welding mechanism (2), and a limiting mechanism (4) is arranged above the supporting mechanism (3); The laser welding mechanism (2) comprises a mounting bracket (201), a circular opening (202) is provided on the mounting bracket (201), a fixed bracket (203) is provided on the top of the mounting bracket (201), a fixed circular plate (204) is provided on the bottom of the fixed bracket (203), a rotating clamping hole (206) is provided at the center of the fixed circular plate (204), and large gears (206) which are symmetrically distributed are rotatably provided on the top and bottom of the fixed circular plate (204) respectively. 207), one side of the large gear (207) is meshedly connected with a small gear (208), one side of the small gear (208) is meshedly connected with an inner gear ring (209), the two large gears (207) are connected and fixed by a first pin shaft (210) adapted to the rotating clamp hole (206), the two small gears (208) are connected and fixed by a second pin shaft (212), and a welding gun (213) is provided at the bottom end of the second pin shaft (212).

2. A laser welding device for metal product production according to claim 1, characterized in that: The support mechanism (3) comprises a lifting slide (301), wherein the lifting slide (301) is symmetrically arranged on the top of the processing machine tool (1), a limiting support plate (302) is arranged on one side of the lifting slide (301), and symmetrically distributed lead screws (304) are rotatably arranged between the limiting support plates (302), a second servo motor (305) is arranged at one end of the lead screw (304), and a metal plate support assembly (36) is arranged between the limiting support plates (302).

3. A laser welding device for metal product production according to claim 1, characterized in that: The limiting mechanism (4) comprises a connecting bottom shell (401), a fixing sleeve (402) is rotatably provided on the inner wall of the connecting bottom shell (401), a telescopic support rod (403) is slidably provided on the inner wall of the fixing sleeve (402), a fixing sleeve (404) is provided at the top end of the telescopic support rod (403), a telescopic support plate (405) is slidably provided on the inner wall of the fixing sleeve (404), and a limiting clamping plate (406) is provided on one side of the telescopic support plate (405).

4. A laser welding device for metal product production according to claim 2, characterized in that: The metal plate support assembly (36) comprises a support base (361), the bottom of the support base (361) is provided with a lead screw (304) opening, the top of the support base (361) is provided with a movable slot (363), the inner wall of the movable slot (363) is slidably provided with an extension card plate (364) adapted thereto, one side of the bottom of the extension card plate (364) is connected to one end of a symmetrically distributed electric cylinder (365), the other end of the electric cylinder (365) is connected to the bottom of the support base (361), one side of the extension card plate (364) is symmetrically provided with a first limit block (366), and one side of the support base (361) is provided with a second limit block (367) adapted to the first limit block (366).

5. The laser welding device for metal product production according to claim 3, characterized in that: The limiting clamping plate (406) is provided with a first rotating hole (407), and the limiting clamping plate (406) is also provided with a second rotating hole (408). A rotating retaining ring (409) is rotatably provided inside the second rotating hole (408), and meshing teeth (410) are evenly provided on the top periphery of the rotating retaining ring (409). One side of the meshing teeth (410) is meshingly connected with a transmission gear (411), and a connecting rod (412) is provided on the inner wall of the transmission gear (411). A hand wheel (413) is provided at the top end of the connecting rod (412), and the bottom end of the connecting rod (412) is rotatably connected to the inner wall of the first rotating hole (407).

6. A laser welding device for metal product production according to claim 5, characterized in that: The inner wall of the rotating clamp (409) is provided with a threaded groove (414), the inner wall of the threaded groove (414) is threadedly connected with a threaded rod (415) adapted thereto, a limiting top plate (416) is provided at the top end of the threaded rod (415), and a limiting pressure plate (417) is provided at the bottom end of the threaded rod (415).

7. A laser welding device for metal product production according to claim 1, characterized in that: The inner gear ring (209) is arranged outside the large gear (207) and the small gear (208), and the inner gear ring (209) is symmetrically arranged on the mounting bracket (201).

8. The laser welding device for metal product production according to claim 1, characterized in that: The fixed circular plate (204) and the fixed bracket (203) are connected and fixed by providing a connecting rod (205); a first servo motor (211) is provided at the top end of the first pin shaft (210), and the first servo motor (211) is connected to the bottom of the fixed bracket (203).

9. A laser welding device for metal product production according to claim 2, characterized in that: The position-limiting support plate (302) is connected and fixed to the lifting slide (301) by means of fastening bolts (303).

10. A laser welding device for metal product production according to claim 1, characterized in that: Support legs (5) are provided at the four corners of the bottom of the processing machine tool (1).

Images