Laser continuous ring welding device

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a laser continuous ring welding device. The device comprises a first mounting seat; the second mounting seat and the first mounting seat correspond to each other in the first direction and are arranged at an interval; the pressing mechanism is connected with at least one of the first mounting seat and the second mounting seat and drives the first mounting seat and the second mounting seat to get close to each other or get away from each other in the first direction; the rotating mechanism is connected with at least one of the first mounting seat and the second mounting seat and drives the to-be-welded workpiece mounted between the first mounting seat and the second mounting seat to rotate around the first direction; and the welding mechanism is provided with a laser welding device and a welding device driving device, the welding device driving device is connected with the laser welding device, and the welding device driving device drives the laser welding device to move in the first direction. During welding, one-time girth welding can be carried out on a workpiece to be welded, and two-time or multiple-time girth welding can be continuously carried out on the workpiece to be welded.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding, and particularly relates to a laser continuous loop welding device. Background Technique

[0002] Laser welding is an efficient and precise welding method that uses a laser beam with a high energy density as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In recent years, lasers have begun to be applied in the manufacturing industry, especially in the fields of welding, cutting, and surface treatment of workpieces. Laser loop welding refers to processing a concave annular weld along the surface of the workpiece to be welded (as shown in Figure 8 a), a convex annular weld along the surface (as shown in Figure 8 b), or welding and fixing two or more workpieces with annular welds (as shown in Figure 8 c) by a laser welding device. The welding objects can be various workpieces such as cylinders, frustums, cuboids, and tubes. Loop welding is mainly divided into vertical loop welding and horizontal loop welding. Vertical loop welding: The weld is a full-position welding mainly with a vertical seam. For example, the welding of the fixed port of a horizontal pipe belongs to a vertical loop seam. Of course, the weld of the rotatable weld port of a horizontal pipe also belongs to a vertical loop seam. Horizontal loop welding: The weld is a full-position welding of a transverse seam. For example, the welding of a vertical pipe weld port is a horizontal loop seam. Welding belonging to a horizontal loop seam also includes; the butt horizontal loop welding of a vertical steel storage tank, and the transverse weld of a loop weld when a welder stands normally or squats. In the prior art, the laser beam path of a laser welding device is fixed, that is, the welding point position of the laser welding device during operation is fixed. If loop welding is required, the workpiece to be welded needs to be clamped and rotated by a clamping tool so that the annular weld of the rotated workpiece to be welded traverses the laser welding point of the laser welding device, thereby forming an annular welding track on the surface of the workpiece to be welded. The problem with this loop welding processing device is that since the laser beam path of the laser welding device is fixed and the workpiece to be welded is clamped and rotated by a holding tool, only one loop weld can be performed on the workpiece to be welded during welding, and two or more loop welds cannot be continuously performed on the workpiece to be welded. Content of the Utility Model

[0003] In view of the deficiency of the prior art that "only one loop weld can be performed on the workpiece to be welded, and two or more loop welds cannot be continuously performed on the workpiece to be welded", the utility model provides a laser continuous loop welding device.

[0004] The utility model provides a laser continuous loop welding device, which includes:

[0005] A first mounting seat for detachably mounting the first end of the workpiece to be welded;

[0006] A second mounting seat for detachably mounting the second end of the workpiece to be welded, which is spaced from the first mounting seat and is arranged corresponding to the first mounting seat in a first direction;

[0007] A pressing mechanism, connected to at least one of the first mounting seat and the second mounting seat, drives the first mounting seat and the second mounting seat to approach or move away from each other in a first direction;

[0008] A rotating mechanism, connected to at least one of the first mounting seat and the second mounting seat, drives a workpiece to be welded installed between the first mounting seat and the second mounting seat to rotate around a first direction;

[0009] A welding mechanism is provided with a laser welder and a welder driving device. The welder driving device is connected to the laser welder. The welder driving device drives the laser welder to move in a first direction. The laser welder is used to weld a workpiece to be welded installed between the first mounting seat and the second mounting seat.

[0010] In the laser continuous circumferential welding device provided by the present utility model, when in use, the first end and the second end of the workpiece to be welded are respectively installed on the first mounting seat and the second mounting seat. The first mounting seat and the second mounting seat also press the workpiece to be welded between them through a pressing mechanism; the rotating mechanism drives the workpiece to be welded installed between the first mounting seat and the second mounting seat to rotate around a first direction. During the rotation of the workpiece to be welded, the position of the laser welder remains unchanged. The laser welder realizes circumferential welding of the workpiece to be welded; after one welding is completed, the welder driving device drives the laser welder to move in a first direction to the second position that needs to be welded, then fixes the position of the laser welder unchanged, rotates the workpiece to be welded to complete the second circumferential welding, and so on for multiple other weldings. When the present utility model welds, it can not only perform one circumferential welding on the workpiece to be welded, but also continuously perform two or more circumferential weldings on the workpiece to be welded.

[0011] Preferably, the laser continuous circumferential welding device further includes a mounting seat moving mechanism. The mounting seat moving mechanism is connected to the first mounting seat and drives it to approach or move away from the second mounting seat in a second direction. When the first mounting seat drives the second end of the workpiece to be welded to align with the second mounting seat; the rotating mechanism is connected to the second mounting seat and drives it to rotate around a first direction. The second mounting seat drives the workpiece to be welded to rotate; the pressing mechanism is connected to the second mounting seat and drives it to approach or move away from the first mounting seat.

[0012] Preferably, the first mounting seat is located below the second mounting seat. The first mounting seat is provided with a plug-in groove for inserting the first end of the workpiece to be welded. The plug-in groove is rotatably connected to the first end of the workpiece to be welded. The plug-in groove is located on the upper surface of the first mounting seat. The second mounting seat is provided with a pressing groove for inserting the second end of the workpiece to be welded. The pressing groove cooperates with the second end of the workpiece to be welded and drives it to rotate. The pressing groove is located on the lower surface of the second mounting seat.

[0013] Preferably, the laser continuous loop welding device further includes a positioning mechanism, which is arranged in the moving direction of the first mounting seat. When the first mounting seat moves to correspond to the second mounting seat, the positioning mechanism abuts against the first mounting seat or the workpiece to be welded mounted on the first mounting seat. The positioning mechanism is used to limit the movement of both, so that the second end of the workpiece to be welded mounted on the first mounting seat is aligned with the second mounting seat.

[0014] Preferably, the positioning mechanism includes a positioning roller and a clamping roller. The positioning roller is arranged in the moving direction of the first mounting seat. The positioning roller is used to limit the first mounting seat and the workpiece to be welded mounted on the first mounting seat, so that the second end of the workpiece to be welded is aligned with the second mounting seat; the clamping roller is arranged corresponding to the positioning roller along a second direction, the second direction is perpendicular to the first direction, the clamping roller is located at one end of the second mounting seat away from the positioning roller, and the clamping roller can rotate around the first direction to make the clamping roller approach or away from the positioning roller. The clamping roller is used to clamp the workpiece to be welded.

[0015] Preferably, the positioning mechanism further includes a roller driving assembly for driving the clamping roller to rotate. The roller driving assembly is provided with a swing arm driving device, a swing arm support frame and a movable swing arm. The movable swing arm is arranged along a third direction, and the third direction is perpendicular to both the second direction and the first direction; one end of the movable swing arm close to the second mounting seat is connected to the clamping roller, the other end of the movable swing arm is connected to the swing arm driving device, and the middle part of the movable swing arm is hinged to the swing arm support frame; the swing arm driving device drives the movable swing arm to rotate around the hinge to drive the clamping roller.

[0016] Preferably, the laser continuous loop welding device further includes a weld detection mechanism, which is provided with a weld detector and a detector driving device; the detector driving device is connected to the weld detector and is used to drive the weld detector to move along the first direction; the weld detector is arranged corresponding to the laser welder along a third direction, and the two are respectively located on both sides of the connection line between the first mounting seat and the second mounting seat, and the third direction is perpendicular to the first direction.

[0017] Preferably, the laser continuous loop welding device further includes a mounting seat moving mechanism, which is connected to the first mounting seat, and the first mounting seat is located below the second mounting seat along; the laser continuous loop welding device further includes a machine base, and the upper end of the machine base is provided with a workbench and a protective shell, and the protective shell covers the workbench; the first mounting seat and the second mounting seat are located inside the protective shell.

[0018] Preferably, a support mounting plate is fixedly arranged inside the protective housing on the workbench. The support mounting plate extends upward and is used for mounting a pressing mechanism, a rotating mechanism, and a second mounting seat. The mounting seat moving mechanism and the first mounting seat are located below the workbench. The workbench is provided with a workpiece moving through-hole corresponding to the first mounting seat, and the workpiece moving through-hole extends in the front-rear direction. The workpiece to be welded can be inserted onto the first mounting seat through the workpiece moving through-hole, and the workpiece to be welded moves in the front-rear direction of the workpiece moving through-hole driven by the first mounting seat.

[0019] Preferably, a protective door is further arranged on the protective housing. The protective door communicates with the inner cavity of the protective housing. The protective door is located at the front end of the workbench. The distance between the protective door and the front end of the workpiece moving through-hole is less than 1 m. The protective door is also provided with a safety light curtain. Brief Description of the Drawings

[0020] The above and other objects, features, and advantages of the present invention will become clearer through the preferred embodiments shown in the drawings. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, with the focus on showing the gist of the present invention.

[0021] Figure 1 Structural schematic diagram of the laser continuous loop welding device provided for the embodiment;

[0022] Figure 2 For Figure 1 Structural schematic diagram after hiding the safety light curtain and alarm of the protective housing in

[0023] Figure 3 For Figure 2 Structural schematic diagram after hiding the machine base in

[0024] Figure 4 For Figure 3 Structural schematic diagram of another perspective of

[0025] Figure 5 Structural schematic diagram after hiding the workpiece to be welded, the clamping roller, and the roller drive assembly in

[0026] Figure 6 Structural schematic diagram of the positioning mechanism provided for the embodiment;

[0027] Figure 7 Structural schematic diagram of the workpiece to be welded provided for the embodiment;

[0028] Figure 8 Welding method of the workpiece to be welded provided for the embodiment.

[0029] Attached drawing reference signs: first mounting seat 10a, second mounting seat 10b, mounting seat moving mechanism 100; positioning mechanism 20, positioning roller 201, clamping roller 202, roller driving assembly 203, swing arm driving device 204, swing arm support frame 205, movable swing arm 206; rotating mechanism 30, rotating motor support plate 301; pressing mechanism 40, pressing mounting plate 402; welding mechanism 50, laser welder 501, welder driving device 502; weld detection mechanism 60, weld detector 601, detector driving device 602; machine base 70, protective shell 701, protective door 702, workbench 703, workpiece movable through hole 704, support mounting plate 705, safety light curtain 706, alarm 707; workpiece to be welded 80, circumferential weld 801. M is the rotation direction of the positioning roller. Detailed implementation manners

[0030] For the convenience of understanding the present utility model, the present will be described more comprehensively below with reference to the relevant attached drawings.

[0031] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element at the same time. The terms "mounted", "one end", "the other end" and similar expressions used herein are only for the purpose of illustration.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this technology belongs. The terms used in the description in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] Please refer to Figure 1 - Figure 8 , the present utility model provides a laser continuous circumferential welding 801 device. It includes:

[0034] A first mounting seat 10a, for detachably mounting the first end of the workpiece 80 to be welded;

[0035] A second mounting seat 10b, for detachably mounting the second end of the workpiece 80 to be welded, spaced from the first mounting seat 10a, and arranged corresponding to the first mounting seat 10a in the first direction;

[0036] A pressing mechanism 40, connected to at least one of the first mounting seat 10a and the second mounting seat 10b, and driving the first mounting seat 10a and the second mounting seat 10b to approach or move away from each other in the first direction;

[0037] A rotating mechanism 30 is connected to at least one of the first mounting seat 10a and the second mounting seat 10b, and drives a workpiece 80 to be welded installed between the first mounting seat 10a and the second mounting seat 10b to rotate around a first direction;

[0038] A welding mechanism 50 is provided with a laser welder 501 and a welder driving device 502. The welder driving device 502 can adopt an electric slide rail, and drives the laser welder 501 to move through the electric slide rail; the welder driving device 502 is connected to the laser welder 501, and the welder driving device 502 drives the laser welder 501 to move along the first direction, and the laser welder 501 is used for welding the workpiece 80 to be welded installed between the first mounting seat 10a and the second mounting seat 10b.

[0039] In the laser continuous loop welding 801 device provided by the present utility model, when in use, the first end and the second end of the workpiece 80 to be welded are respectively installed on the first mounting seat 10a and the second mounting seat 10b, and the first mounting seat 10a and the second mounting seat 10b also press the workpiece 80 to be welded between them through a pressing mechanism 40; the rotating mechanism 30 drives the workpiece 80 to be welded installed between the first mounting seat 10a and the second mounting seat 10b to rotate around the first direction. During the rotation of the workpiece 80 to be welded, the position of the laser welder 501 remains unchanged, and the laser welder 501 realizes loop welding 801 of the workpiece 80 to be welded; after one welding is completed, the welder driving device 502 drives the laser welder 501 to move along the first direction to the second position that needs to be welded, then fixes the position of the laser welder 501 unchanged, rotates the workpiece 80 to be welded to complete the second loop welding 801, and so on for multiple other weldings. When the present utility model welds, it can not only perform one loop welding 801 on the workpiece 80 to be welded, but also continuously perform two or more loop weldings 801 on the workpiece 80 to be welded. The present utility model can also directly melt a part on the outer surface of a workpiece 80 to be welded to form an inwardly concave annular weld along the surface (as shown in Figure 8 Figure a); the present utility model can form a convex loop welding 801 on the outer surface of a workpiece 80 to be welded by brazing. The convex loop welding 801 is formed by laser melting metal tin and welding it on the outer surface of a workpiece 80 to be welded to form an annular protrusion (as shown in Figure 8 Figure b); of course, when multiple welded parts are pre-connected and positioned, for example, in Figure 8 Figure c, five workpieces 80 to be welded are sleeved in sequence, and the present utility model can also perform brazing or directly laser melting on the formed around the connection in sequence to weld them together.

[0040] Please refer to Figure 1 - Figure 2, in a preferred embodiment, the laser continuous loop welding 801 device further includes a mounting base moving mechanism 100, the mounting base moving mechanism 100 is connected to the first mounting base 10a, and the first mounting base 10a is located below the second mounting base 10b; the laser continuous loop welding 801 device further includes a machine base 700, a workbench 703 and a protective housing 701 are provided at the upper end of the machine base 700, and the protective housing 701 covers the workbench 703; the first mounting base 10a and the second mounting base 10b are located inside the protective housing 701. On the one hand, the protective housing 701 reduces the radiation to the operator during laser welding, and on the other hand, when the protective housing 701 is used in cooperation with the exhaust device, it can also avoid the harm of harmful welding gases to the operator.

[0041] Furthermore, a support mounting plate 705 is fixedly provided on the workbench 703 inside the protective housing 701, the support mounting plate 705 extends upward, and the support mounting plate 705 is used to mount the pressing mechanism 40, the rotating mechanism 30 and the second mounting base 10b; the mounting base moving mechanism 100 and the first mounting base 10a are located below the workbench 703, and the workbench 703 is provided with a workpiece moving through hole 704 corresponding to the first mounting base 10a, and the workpiece moving through hole 704 extends in the front-rear direction; the workpiece to be welded 80 can be inserted onto the first mounting base 10a through the workpiece moving through hole 704, and the workpiece to be welded 80 moves in the front-rear direction of the workpiece moving through hole 704 driven by the first mounting base 10a.

[0042] Furthermore, a protective door 702 is also provided on the protective housing 701, the protective door 702 communicates with the inner cavity of the protective housing 701, the protective door 702 is located at the front end of the workbench 703, and the operator can stand at the front end of the workbench 703 and extend the workpiece to be welded 80 into the protective housing 701 through the protective door 702 and insert the workpiece to be welded 80 onto the first mounting base 10a. The distance between the protective door 702 and the front end of the workpiece moving through hole 704 is less than 1 m. When the first mounting base 10a moves to the front end of the workpiece moving through hole 704, the operator can conveniently install the workpiece to be welded 80 onto the first mounting base 10a. The protective door 702 is also provided with a safety grating 706, and the safety grating 706 is communicatively connected to an alarm 707. When the operator makes a misoperation, it can remind relevant personnel or forcibly stop the welding mechanism 50, the rotating mechanism 30 and the pressing mechanism 40.

[0043] Please refer to Figure 3 - Figure 5, in a preferred embodiment, the laser continuous loop welding 801 device further includes a mounting base moving mechanism 100. The mounting base moving mechanism 100 and the pressing mechanism 40 can adopt a telescopic cylinder or a linear slide rail composed of motors and other driving devices with linear motion. The output end of the pressing mechanism 40 is provided with a pressing mounting plate 401; the pressing mechanism 40 can drive the pressing mounting plate 401 to move up and down; the pressing mounting plate 401 is used to mount the rotating mechanism 30 and drive the rotating mechanism 30 to move up and down; the rotating mechanism 30 can adopt a rotating motor, which is mounted on the motor support plate 301, and the motor support plate 301 is fixedly connected to the pressing mounting plate 401. The mounting base moving mechanism 100 is connected to the first mounting base 10a and drives it to approach or move away from the second mounting base 10b in the front-rear direction. When the first mounting base 10a drives the second end of the workpiece 80 to be welded to align with the second mounting base 10b. The rotating mechanism 30 is connected to the second mounting base 10b and drives it to rotate around the first direction, and the second mounting base 10b drives the workpiece 80 to be welded to rotate; the pressing mechanism 40 is connected to the second mounting base 10b and drives it to approach or move away from the first mounting base 10a. Through the above settings, it is convenient to install the workpiece 80 to be welded in the first mounting base 10a.

[0044] Further, the first mounting base 10a is located below the second mounting base 10b. The first mounting base 10a is provided with a plugging groove for plugging the first end of the workpiece 80 to be welded. The plugging groove is adapted to the shape of the first end of the workpiece 80 to be welded. The plugging groove is rotatably connected to the first end of the workpiece 80 to be welded, and the plugging groove is located on the upper surface of the first mounting base 10a. The second mounting base 10b is provided with a pressing groove for plugging the second end of the workpiece 80 to be welded. The second end of the workpiece 80 to be welded is adapted to the shape of the pressing groove; the pressing groove cooperates with the second end of the workpiece 80 to be welded and drives it to rotate, or the two can be driven by friction. The pressing groove is located on the lower surface of the second mounting base 10b.

[0045] Furthermore, the laser continuous circumferential welding 801 device further includes a weld detection mechanism 60, which is provided with a weld detector 601 and a detector driving device 602; the detector driving device 602 is connected to the weld detector 601 and is used to drive the weld detector 601 to move in the first direction; the weld detector 601 is arranged corresponding to the laser welder 501 in the third direction, and the two are respectively located on both sides of the connection line between the first mounting seat 10a and the second mounting seat 10b; the third direction is perpendicular to the first direction, the first direction can be the up-down direction, the second direction can be the front-back direction, and the third direction is the left-right direction; the weld detector 601 is a vision detection device, and it can move up and down synchronously with the laser welder 501. The detector driving device 602 and the welder driving device 502 can adopt electric slide rails to drive the weld detector 601 to move up and down. The positioning of the weld detector 601 and the laser welder 501 at the welding position of the workpiece 80 to be welded can adopt existing positioning technologies, such as vision positioning, or an electric slide rail, a precision positioning platform, an electric slide table, a precision positioning slide table, a linear positioning platform or a high-precision linear platform with a positioning function by itself for the detector driving device 602, so as to realize the positioning of each circumferential welding 801 position of the workpiece 80 to be welded.

[0046] Please refer to Figure 3 - Figure 6 In a preferred embodiment, the laser continuous circumferential welding 801 device further includes a positioning mechanism 20, which is arranged in the moving direction of the first mounting seat 10a. When the first mounting seat 10a moves to correspond to the second mounting seat 10b, the positioning mechanism 20 abuts against the first mounting seat 10a or the workpiece 80 to be welded mounted on the first mounting seat 10a, and the positioning mechanism 20 is used to limit the movement of the two, so that the second end of the workpiece 80 mounted on the first mounting seat 10a is aligned with the second mounting seat 10b.

[0047] Furthermore, the positioning mechanism 20 includes a positioning roller 201 and a clamping roller 202. The positioning roller 201 is arranged in the moving direction of the first mounting seat 10a, and the positioning roller 201 is used to limit the first mounting seat 10a and the workpiece 80 to be welded mounted on the first mounting seat 10a, so that the second end of the workpiece 80 is aligned with the second mounting seat 10b; the clamping roller 202 is arranged corresponding to the positioning roller 201 in the second direction, the second direction is perpendicular to the first direction, the clamping roller 202 is located at one end of the second mounting seat 10b away from the positioning roller 201, and the clamping roller 202 can rotate around the first direction to make the clamping roller 202 approach or away from the positioning roller 201, and the clamping roller 202 is used to clamp the workpiece 80.

[0048] Further, the positioning mechanism 20 further includes a drum driving assembly 203 for driving the clamping drum 202 to rotate. The drum driving assembly 203 is provided with a swing arm driving device 204, a swing arm support frame 205, and a movable swing arm 206. The movable swing arm 206 is arranged in a third direction, and the third direction is perpendicular to the second direction and the first direction respectively; one end of the movable swing arm 206 close to the second mounting seat 10b is connected to the clamping drum 202, the other end of the movable swing arm 206 is connected to the swing arm driving device 204, and the middle part of the movable swing arm 206 is hinged to the swing arm support frame 205; the swing arm driving device 204 drives the movable swing arm 206 to rotate around the hinge point to drive the clamping drum 202. The swing arm driving device 204 can adopt a telescopic cylinder.

[0049] In the preferred embodiment, there are two groups of positioning mechanisms 20, which are arranged up and down; one clamping drum 202 and two positioning drums 201 are provided in the upper group of positioning mechanisms 20. The two positioning drums 201 are installed on the support mounting plate 705 with a drum support frame. The two positioning drums 201 are located at the rear side of the corresponding areas of the insertion groove and the pressing groove (during welding), so that when the first mounting seat 10a moves backward, the insertion groove and the pressing groove are aligned. The positioning drums 201 position the workpiece 80 to be welded, so that the pressing groove is aligned with the second end of the workpiece 80 to be welded. The clamping drum 202 of the upper group of positioning mechanisms 20 is located on the left side of the second mounting seat 10b. Figure 6 It shows that the clamping drum 202 of the upper group of positioning mechanisms 20 is in the state of clamping the workpiece 80 to be welded, and it can rotate around the hinge point to release the workpiece 80 to be welded under the drive of the swing arm driving device 204. The lower group of positioning mechanisms 20 is provided with one clamping drum 202 and four positioning drums 201. Every two positioning drums 201 are installed on the support mounting plate 705 with a drum support frame. The four positioning drums 201 are at the same distance from the front surface of the support mounting plate 705 as the two positioning drums 201 of the upper group of positioning mechanisms 20. The clamping drum 202 of the lower group of positioning mechanisms 20 is located on the right side of the second mounting seat 10b. It is in the state of releasing the workpiece 80 to be welded, and it can rotate around the hinge point to release the workpiece 80 to be welded under the drive of the swing arm driving device 204, as Figure 6 The positions of the two clamping drums 202 and the rotation directions during the switching state shown by M and the dotted arrows in the figure.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A laser continuous loop welding device, characterized in that, The ring welding device includes: A first mounting seat for detachably mounting the first end of the workpiece to be welded; A second mounting seat for detachably mounting the second end of the workpiece to be welded, spaced from the first mounting seat and correspondingly arranged with the first mounting seat in a first direction; A pressing mechanism connected to at least one of the first mounting seat and the second mounting seat, driving the first mounting seat and the second mounting seat to approach or move away from each other in the first direction; A rotating mechanism connected to at least one of the first mounting seat and the second mounting seat, driving the workpiece to be welded installed between the first mounting seat and the second mounting seat to rotate around the first direction; A welding mechanism provided with a laser welder and a welder driving device, the welder driving device being connected to the laser welder, the welder driving device driving the laser welder to move in the first direction, and the laser welder being used to weld the workpiece to be welded installed between the first mounting seat and the second mounting seat.

2. The laser continuous loop welding device according to claim 1, characterized in that The laser continuous ring welding device further includes a mounting seat moving mechanism, the mounting seat moving mechanism being connected to the first mounting seat and driving it to approach or move away from the second mounting seat in a second direction. When the first mounting seat drives the second end of the workpiece to be welded to align with the second mounting seat; the rotating mechanism is connected to the second mounting seat and drives it to rotate around the first direction, and the second mounting seat drives the workpiece to be welded to rotate; the pressing mechanism is connected to the second mounting seat and drives it to approach or move away from the first mounting seat.

3. The laser continuous loop welding device according to claim 2, wherein The first mounting seat is located below the second mounting seat. The first mounting seat is provided with a plugging groove for plugging the first end of the workpiece to be welded, and the plugging groove is rotatably connected to the first end of the workpiece to be welded. The plugging groove is located on the upper surface of the first mounting seat. The second mounting seat is provided with a pressing groove for plugging the second end of the workpiece to be welded, and the pressing groove cooperates with the second end of the workpiece to be welded and drives it to rotate. The pressing groove is located on the lower surface of the second mounting seat.

4. The laser continuous loop welding device according to claim 2, characterized in that The laser continuous ring welding device further includes a positioning mechanism. The positioning mechanism is arranged in the moving direction of the first mounting seat. When the first mounting seat moves to correspond to the second mounting seat, the positioning mechanism abuts against the first mounting seat or the workpiece to be welded installed on the first mounting seat. The positioning mechanism is used to limit the movement of both, so that the second end of the workpiece to be welded installed on the first mounting seat aligns with the second mounting seat.

5. The laser continuous loop welding device according to claim 4, wherein, The positioning mechanism includes a positioning roller and a clamping roller. The positioning roller is arranged in the moving direction of the first mounting seat. The positioning roller is used to limit the first mounting seat and the workpiece to be welded installed on the first mounting seat, so that the second end of the workpiece to be welded aligns with the second mounting seat; the clamping roller is correspondingly arranged with the positioning roller in a second direction, the second direction is perpendicular to the first direction, the clamping roller is located at one end of the second mounting seat away from the positioning roller, and the clamping roller can rotate around the first direction to make the clamping roller approach or move away from the positioning roller. The clamping roller is used to clamp the workpiece to be welded.

6. The laser continuous loop welding device according to claim 5, characterized in that, The positioning mechanism further includes a drum driving assembly for driving the clamping drum to rotate. The drum driving assembly is provided with a swing arm driving device, a swing arm support frame, and a movable swing arm. The movable swing arm is arranged in the third direction, and the third direction is perpendicular to both the second direction and the first direction respectively. One end of the movable swing arm close to the second mounting seat is connected to the clamping drum, the other end of the movable swing arm is connected to the swing arm driving device, and the middle part of the movable swing arm is hinged to the swing arm support frame. The swing arm driving device drives the movable swing arm to rotate around the hinge point to drive the clamping drum.

7. The laser continuous loop welding device according to claim 1, characterized in that, The laser continuous circumferential welding device further includes a weld detection mechanism. The weld detection mechanism is provided with a weld detector and a detector driving device. The detector driving device is connected to the weld detector and is used to drive the weld detector to move along the first direction. The weld detector is arranged corresponding to the laser welder in the third direction, and the two are located on both sides of the line connecting the first mounting seat and the second mounting seat respectively, and the third direction is perpendicular to the first direction.

8. The laser continuous loop welding device according to claim 1, wherein, The laser continuous circumferential welding device further includes a mounting seat moving mechanism, and the mounting seat moving mechanism is connected to the first mounting seat. The first mounting seat is located below the second mounting seat. The laser continuous circumferential welding device further includes a machine base. A workbench and a protective shell are provided at the upper end of the machine base, and the protective shell covers the workbench. The first mounting seat and the second mounting seat are located inside the protective shell.

9. The laser continuous loop welding device according to claim 8, characterized in that A support mounting plate is fixedly arranged on the workbench inside the protective shell. The support mounting plate extends upward and is used for mounting a pressing mechanism, a rotating mechanism, and the second mounting seat. The mounting seat moving mechanism and the first mounting seat are located below the workbench. The workbench is provided with a workpiece moving through hole corresponding to the first mounting seat, and the workpiece moving through hole extends in the front-back direction. The workpiece to be welded can be inserted onto the first mounting seat through the workpiece moving through hole, and the workpiece to be welded moves in the front-back direction of the workpiece moving through hole driven by the first mounting seat.

10. The laser continuous loop welding device according to claim 9, wherein, A protective door is further provided on the protective shell. The protective door is communicated with the inner cavity of the protective shell. The protective door is located at the front end of the workbench. The distance between the protective door and the front end of the workpiece moving through hole is less than 1 m, and a safety grating is also provided on the protective door.

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