Laser cutting and welding integrated device for steel structure machining

Abstract

The invention relates to the technical field of steel structure welding, in particular to a laser cutting and welding integrated device for steel structure machining. Comprising a machining platform, and a driving mechanism is arranged on the edge of one side of the top of the machining platform; and the output end of the driving mechanism is in transmission connection with a welding mechanism. According to the welding device, the first guide plate is controlled to move along the arc line, and the electric guide rail in the first guide plate is controlled to drive the welding laser generator to move along the arc line; the welding laser generator and the movable groove are matched to complete circular motion of the welding laser generator to conduct welding work of an annular welding seam, the situation that when a steel structure workpiece cannot rotate, manual welding work is needed is avoided, and after the welding laser generator moves into the movable groove, two sets of L-shaped sealing plates can be controlled to seal the movable groove; and the welding laser generator is prevented from being damaged by external force, and the protection effect is improved while the using effect of the welding device is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of steel structure welding, and particularly relates to a laser cutting and welding integrated device for steel structure machining. BACKGROUND

[0002] Steel structure is a structure composed of steel materials, and is one of main building structure types. Steel structure often needs to be welded according to use requirements in use, and whether the welding end face is flat needs to be confirmed before welding, so as to facilitate end face matching.

[0003] Through retrieval, the prior art discloses a special-shaped pipe welding device for fitness equipment in the technical field of fitness equipment machining, which belongs to the technical field of fitness equipment machining, and comprises a base, a first driving assembly, clamping assemblies, a welding assembly and a second driving assembly. The clamping assemblies are arranged in two groups, and are rotationally arranged on the upper part of the base to clamp two groups of square pipes respectively. The first driving assembly is fixedly arranged on the upper part of the base to synchronously rotate the two groups of clamping assemblies, thereby synchronously rotating the two groups of square pipes. The welding assembly is arranged between the two groups of clamping assemblies. Compared with the prior art, the embodiment of the application realizes automatic welding of the two groups of square pipes by rotating the two groups of square pipes relative to the welding assembly. Meanwhile, the distance between the welding assembly and the square pipe welding gap can be adaptively adjusted during the rotation of the two groups of square pipes, so that the welding effect between the two groups of square pipes is improved, and the welding quality is improved.

[0004] However, the welding device still has the following defects: The existing laser welding device usually needs to control two groups of columnar steel workpieces to rotate to realize continuous ring seam welding when performing laser welding work on columnar steel. However, the columnar steel has a special-shaped structure, so that the columnar steel workpiece cannot be rotated, and manual welding work is required, thereby reducing the use effect of the welding device. SUMMARY

[0005] In view of the above problems, the application provides a laser cutting and welding integrated device for steel structure machining, which comprises a machining platform, a driving mechanism is arranged on one side edge of the top of the machining platform; a welding mechanism is drivingly connected to the output end of the driving mechanism; and a limiting cutting mechanism is movably penetrated through the top of the machining platform. The welding mechanism comprises a mounting seat, an active groove is formed in the bottom of the mounting seat, and a first guide plate capable of moving in a circular arc line is movably penetrated through the active groove. The cross section of the first guide plate is fan ring shape, and the central angle is greater than 180°; an electric guide rail is arranged on the inner wall of the first guide plate; a welding laser generator for ring weld welding is drivingly connected to the output end of the electric guide rail; A first guide groove for power transmission is arranged on the outer wall of the first guide plate; a plurality of groups of first guide teeth for driving are equidistantly arranged on the inner wall of the first guide groove; two groups of L-shaped sealing plates for closing the movable grooves are symmetrically arranged on the bottom of the mounting seat.

[0006] Further, an adjusting cavity is arranged in the processing platform; two groups of first supporting columns are symmetrically movably penetrated into the top of the adjusting cavity; the bottom of the first supporting column is arranged as an inclined surface; two groups of lead screws are arranged in the adjusting cavity; one end of each group of lead screws is fixedly connected, and the other end is rotatably connected to the inner wall on the two sides of the adjusting cavity; the screw threads of the two groups of lead screws are opposite, and the central axes are on the same straight line.

[0007] Further, two groups of sliding blocks are slidingly connected to the inner wall on the bottom of the adjusting cavity; each group of sliding blocks is threadedly connected with one group of lead screws; two groups of limiting blocks are symmetrically drivingly connected to the top of each group of sliding blocks; each group of limiting blocks is movably penetrated into the limiting cutting mechanism; two groups of abutting blocks are symmetrically drivingly connected to the top of each group of sliding blocks; the top of each group of abutting blocks is arranged as an inclined surface, and movably abuts against the bottom of the corresponding group of first supporting columns.

[0008] Further, a transmission cavity is arranged in the mounting seat; a guide motor is arranged on one side wall of the mounting seat; the output end of the guide motor extends into the transmission cavity and drivingly connects with a guide gear; the guide gear is meshingly connected with a plurality of groups of first guide teeth.

[0009] Further, the limiting cutting mechanism comprises a limiting base; two groups of limiting grooves are symmetrically arranged on the bottom of the two side walls of the limiting base; each group of limiting blocks is movably penetrated into the corresponding group of limiting grooves; a first rotary ring and a second rotary ring are arranged on the top of the limiting base; one group of electric turntables is arranged on the top of each of the first rotary ring and the second rotary ring; one group of second supporting columns is drivingly connected to the top of each group of electric turntables.

[0010] Further, one group of first guide assemblies is arranged on the top of each group of second supporting columns; a collecting groove is arranged on the top of the limiting base; two groups of auxiliary supporting plates are slidingly connected to the inner wall of the collecting groove; one group of second guide assemblies is arranged on the top of each group of auxiliary supporting plates; one group of end face cutting assemblies is arranged on the end of each group of second guide assemblies away from the second rotary ring.

[0011] Further, the second guide assembly comprises a first mounting plate; the cross section of the first mounting plate is U-shaped; two groups of supporting rollers are symmetrically arranged on the inner wall of the bottom of the first mounting plate; two groups of third electric push rods are symmetrically arranged on the outer walls of the top of the first mounting plate; the output ends of each group of third electric push rods extend into the first mounting plate and are drivingly connected with a group of steering rollers.

[0012] Further, the end face cutting assembly comprises a plurality of groups of fourth electric push rods; the plurality of groups of fourth electric push rods are installed on the side wall of the first mounting plate away from the second rotating ring; the output ends of the plurality of groups of fourth electric push rods are drivingly connected with guide rings; a through groove is formed in the top of the guide ring, and the length of the through groove is less than the diameter of the guide ring.

[0013] Further, a second guide groove is formed in the inner wall of the guide ring; a second guide plate is slidingly connected in the second guide groove; the cross section of the second guide plate is fan ring-shaped; a second mounting plate is arranged on the side wall of the second guide plate away from the first mounting plate.

[0014] Further, a cutting laser generator and an optical attenuator are symmetrically arranged on the inner wall of the second mounting plate; a plurality of groups of laser range finders are equally spaced on the inner wall of the second mounting plate; a plurality of groups of second guide teeth are equally spaced on the outer wall of the second guide plate.

[0015] The beneficial effects of the present application are: 1. By controlling the first guide plate to move in a circular arc, the electric guide rail inside the first guide plate drives the welding laser generator to move in a circular arc, and when the first guide plate is a fan ring with a central angle greater than 180°, the two can cooperate to complete the circumferential movement of the welding laser generator for welding the annular weld, avoiding the need for manual welding when the steel structure workpiece cannot rotate, and after the welding laser generator moves into the movable groove, the two L-shaped sealing plates can be controlled to close the movable groove, avoiding damage to the welding laser generator by external force, thereby improving the use effect and protection effect of the welding device.

[0016] 2. By controlling the plurality of groups of fourth electric push rods to drive the guide ring to move towards the welding end face of the columnar steel, the plurality of groups of laser range finders arranged on the inner wall of the second mounting plate can detect the welding end face of the columnar steel, then the cutting laser generator is controlled to reach the corresponding position and start, and the second guide plate is controlled to drive the second mounting plate to rotate, so that the cutting laser generator can perform flat cutting work on the welding end face of the columnar steel, and can also perform corresponding degree of preheating work, thereby avoiding welding abnormalities caused by uneven end face and improving the quality of welding work.

[0017] 3. Place the two sets of column steel into the corresponding first guide assembly and second guide assembly, respectively. The corresponding support rollers support the column steel. Then, control the steering roller to abut against the outer wall of the column steel to rotate the column steel and complete the welding of the circumferential weld. When the two sets of column steel are irregularly shaped, one end of the two sets of column steel is fixed to the two sets of second guide assemblies. The two sets of first guide assemblies can be adjusted in position by the first rotating ring and the second rotating ring, respectively, and can be adjusted in angle by the two sets of electric turntables to fix the other end of the irregular column steel. This allows the cutting and welding device to fix irregularly shaped column steel of different shapes, improving the steel structure limiting effect of the cutting and welding device.

[0018] 4. By controlling the rotation of two sets of lead screws, and with the threaded connection between the two sets of lead screws and the two sets of sliders, the two sets of limiting blocks move to opposite sides and disengage from the limiting cutting mechanism. Then, the top inclined surfaces of the two sets of abutments respectively attach to the bottom inclined surfaces of the corresponding set of first support columns, so that the two sets of first support columns abut against the bottom of the limiting cutting mechanism and lift the limiting cutting mechanism to complete the disassembly work. The process is simple and quick, improving the maintenance efficiency of the cutting and welding mechanism.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the cutting and welding apparatus according to an embodiment of the present invention is shown; Figure 2 A cross-sectional schematic diagram of a cutting and welding apparatus according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the welding mechanism according to an embodiment of the present invention is shown; Figure 4 A cross-sectional schematic diagram of a welding mechanism according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the limiting and cutting mechanism according to an embodiment of the present invention is shown; Figure 6 An embodiment of the present invention is shown. Figure 5an enlarged schematic view of A in Fig. 1; Figure 7 a structural schematic view of the end face cutting assembly according to an embodiment of the present application is shown; Figure 8 a sectional view of the end face cutting assembly according to an embodiment of the present application is shown; In the figure: 1, processing platform; 2, first electric sliding table; 3, first electric push rod; 4, connecting seat; 5, second electric sliding table; 6, second electric push rod; 7, welding mechanism; 8, limiting cutting mechanism; 9, adjusting cavity; 10, first supporting column; 11, screw rod; 12, sliding block; 13, limiting block; 14, abutting block; 701, mounting seat; 702, movable groove; 703, first guide plate; 704, electric guide rail; 705, welding laser generator; 706, first guide groove; 707, first guide tooth; 708, sealing plate; 709, guide motor; 710, transmission cavity; 711, guide gear; 801, limiting base; 802, limiting groove; 803, first rotating ring; 804, second rotating ring; 805, electric rotating disc; 806, second supporting column; 807, first guide assembly; 808, collecting groove; 809, auxiliary supporting plate; 810, second guide assembly; 811, end face cutting assembly; 8101, first mounting plate; 8102, supporting roller; 8103, third electric push rod; 8104, steering roller; 8111, fourth electric push rod; 8112, guide ring; 8113, second guide groove; 8114, second guide plate; 8115, second mounting plate; 8116, cutting laser generator; 8117, optical attenuator; 8118, laser ranging head; 8119, second guide tooth. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0023] The embodiments of the present application provide a laser cutting and welding integrated device for steel structure processing, comprising a processing platform 1. Exemplarily, as shown in Figure 1 and Figure 2As shown, the top side edge of the processing platform 1 is provided with a first electric sliding table 2; the output end of the first electric sliding table 2 is drivingly connected with a first electric push rod 3; the output end of the first electric push rod 3 is drivingly connected with a connecting seat 4; one side wall of the connecting seat 4 is provided with a second electric sliding table 5; the output end of the second electric sliding table 5 is drivingly connected with a second electric push rod 6; the output end of the second electric push rod 6 is drivingly connected with a welding mechanism 7; the first electric sliding table 2, the first electric push rod 3, the connecting seat 4, the second electric sliding table 5 and the second electric push rod 6 combine to form a driving mechanism; the top of the processing platform 1 is movably penetrated by a limiting cutting mechanism 8; the processing platform 1 is provided with an adjusting cavity 9; the top of the adjusting cavity 9 is symmetrically movably penetrated by two groups of first supporting columns 10; the bottom of the first supporting column 10 is provided as an inclined surface; the adjusting cavity 9 is provided with two groups of lead screws 11; one end of the two groups of lead screws 11 is fixedly connected, and the other end is respectively rotatably connected to the inner walls on the two sides of the adjusting cavity 9; the two groups of lead screws 11 are opposite in thread direction and have the same central axis; the bottom inner wall of the adjusting cavity 9 is slidingly connected with two groups of sliding blocks 12; the two groups of sliding blocks 12 are respectively threadedly connected with a group of lead screws 11; the top of the two groups of sliding blocks 12 is symmetrically drivingly connected with two groups of limiting blocks 13; each group of limiting blocks 13 movably penetrates into the limiting cutting mechanism 8; the top of each group of limiting blocks 13 is provided as an inclined surface and movably abuts against the bottom of the corresponding group of first supporting columns 10.

[0024] When performing laser welding of columnar steel, first, two groups of columnar steel are fixed on the top of the limiting cutting mechanism 8 and are butt-jointed, then the driving mechanism is controlled to drive the welding mechanism to perform welding work of the columnar steel. When it is necessary to disassemble the limiting assembly, the two groups of lead screws 11 are controlled to rotate, and under the thread connection relationship between the two groups of lead screws 11 and the two groups of sliding blocks 12, the two groups of limiting blocks 13 move towards opposite sides and are separated from the limiting cutting mechanism 8, then the top inclined surfaces of the two groups of abutting blocks 14 respectively abut against the bottom inclined surfaces of the corresponding group of first supporting columns 10, so that the two groups of first supporting columns 10 abut against the bottom of the limiting cutting mechanism 8 and lift the limiting cutting mechanism 8, thereby completing the disassembly work, which is simple and fast and improves the maintenance efficiency of the cutting and welding mechanism.

[0025] For example, Figure 3 and Figure 4As shown, the welding mechanism 7 comprises a mounting seat 701; the bottom of the mounting seat 701 is provided with a movable groove 702; the first guide plate 703 is movably penetrated in the movable groove 702; the cross section of the first guide plate 703 is a fan ring, and the central angle is greater than 180°; the inner wall of the first guide plate 703 is provided with an electric guide rail 704; the output end of the electric guide rail 704 is movably connected with a welding laser generator 705; the outer wall of the first guide plate 703 is provided with a first guide groove 706; the inner wall of the first guide groove 706 is provided with a plurality of groups of first guide teeth 707 at equal intervals; the bottom of the mounting seat 701 is symmetrically provided with two groups of sealing plates 708; the cross section of each group of sealing plates 708 is L-shaped; the mounting seat 701 is provided with a transmission cavity 710; one side wall of the mounting seat 701 is provided with a guide motor 709; the output end of the guide motor 709 extends into the transmission cavity 710 and is movably connected with a guide gear 711; the guide gear 711 is movably connected with a plurality of groups of first guide teeth 707.

[0026] When the laser welding work of the columnar steel is carried out, two groups of columnar steels are fixed on the top of the limiting cutting mechanism 8, and then the welding laser generator 705 is controlled to output laser to weld the annular weld of the two groups of columnar steels, and the limiting cutting mechanism 8 is controlled to drive the two groups of columnar steels to rotate synchronously until the welding work is completed. When the two groups of columnar steels are in a special-shaped structure and cannot rotate synchronously, the guide motor 709 is controlled to drive the guide gear 711 to rotate, and under the meshing connection relationship between the guide gear 711 and a plurality of groups of first guide teeth 707, the first guide plate 703 is driven to move in an arc line, and the electric guide rail 704 in the first guide plate 703 can drive the welding laser generator 705 to move in an arc line. When the first guide plate 703 is a fan ring with a central angle greater than 180°, the circular motion of the welding laser generator 705 can be completed by cooperation to weld the annular weld, so that manual welding work is not needed when the steel structure workpiece cannot rotate, and after the welding laser generator 705 moves into the movable groove 702, the two groups of L-shaped sealing plates 708 can be controlled to close the movable groove 702, so that the welding laser generator 705 is prevented from being damaged by external force, thereby improving the use effect and the protection effect of the welding device.

[0027] For example, Figure 5As shown, the limiting cutting mechanism 8 comprises a limiting base 801; two groups of limiting grooves 802 are symmetrically arranged on the bottom two side walls of the limiting base 801; each group of the limiting blocks 13 is movably penetrated into the corresponding group of limiting grooves 802; the top of the limiting base 801 is provided with a first rotating ring 803 and a second rotating ring 804; the top of the first rotating ring 803 and the second rotating ring 804 is provided with a group of electric turntables 805; the top of each group of the electric turntables 805 is drivingly connected with a group of second supporting columns 806; the top of each group of the second supporting columns 806 is provided with a group of first guiding assemblies 807; the top of the limiting base 801 is provided with a collecting groove 808; the collecting groove 808 is a circular groove; two groups of auxiliary supporting plates 809 are slidably connected to the inner wall of the collecting groove 808; the top of each group of the auxiliary supporting plates 809 is provided with a group of second guiding assemblies 810; one end of each group of the second guiding assemblies 810 away from the second rotating ring 804 is provided with a group of end face cutting assemblies 811.

[0028] As shown in the example, Figure 6 The second guiding assembly 810 comprises a first mounting plate 8101; the cross section of the first mounting plate 8101 is U-shaped; two groups of supporting rollers 8102 are symmetrically arranged on the inner wall of the bottom of the first mounting plate 8101; two groups of third electric push rods 8103 are symmetrically arranged on the top two side outer walls of the first mounting plate 8101; the output end of each group of the third electric push rods 8103 extends into the first mounting plate 8101 and is drivingly connected with a group of steering rollers 8104.

[0029] When performing laser welding of columnar steel, under normal circumstances, the central axes of the two groups of first guiding assemblies 807 and second guiding assemblies 810 are on the same straight line, the two groups of columnar steels are respectively placed in the corresponding group of first guiding assemblies 807 and second guiding assemblies 810, the corresponding supporting rollers 8102 support the columnar steel, then the steering rollers 8104 are controlled to abut against the outer wall of the columnar steel for rotating the columnar steel to complete the welding of the annular weld, when the two groups of columnar steels are special-shaped, one end of the two groups of columnar steels to be welded is fixed to the two groups of second guiding assemblies 810, the two groups of first guiding assemblies 807 can be adjusted in position through the first rotating ring 803 and the second rotating ring 804, and can be adjusted in angle through the two groups of electric turntables 805, so as to fix the other end of the special-shaped columnar steel, so that the cutting and welding device can fix different shapes of special-shaped columnar steels, and the steel structure limiting effect of the cutting and welding device is improved.

[0030] As shown in the example, Figure 7 and Figure 8As shown, the end face cutting assembly 811 comprises a plurality of fourth electric push rods 8111; the plurality of fourth electric push rods 8111 are installed on the side wall of the first mounting plate 8101 away from the second rotating ring 804; the output ends of the plurality of fourth electric push rods 8111 are movably connected with a guide ring 8112; the top of the guide ring 8112 is provided with a through groove, and the length of the through groove is less than the diameter of the guide ring 8112; a second guide groove 8113 is formed in the inner wall of the guide ring 8112; a second guide plate 8114 is slidably connected in the second guide groove 8113; the cross section of the second guide plate 8114 is a fan ring; a second mounting plate 8115 is arranged on the side wall of the second guide plate 8114 away from the first mounting plate 8101; a cutting laser generator 8116 and an optical attenuator 8117 are symmetrically arranged on the inner wall of the second mounting plate 8115; a plurality of laser range finders 8118 are equidistantly arranged on the inner wall of the second mounting plate 8115; and a plurality of second guide teeth 8119 are equidistantly arranged on the outer wall of the second guide plate 8114.

[0031] When performing laser welding of columnar steel, before the butt joint of the two groups of columnar steel, the fourth electric push rod 8111 is controlled to drive the guide ring 8112 to move towards the welding end face of the columnar steel, and the plurality of laser range finders 8118 arranged on the inner wall of the second mounting plate 8115 can detect the welding end face of the columnar steel. If the end face of the columnar steel is not flat, the first abnormal signal is used as a reference to control the cutting laser generator 8116 to reach the corresponding position and start, and the second guide plate 8114 drives the second mounting plate 8115 to rotate, so that the cutting laser generator 8116 can perform flat cutting of the welding end face of the columnar steel, and can also perform preheating work to a certain extent. The welding abnormality problem caused by the uneven end face is avoided, and the welding quality is improved.

[0032] By controlling the first guide plate 703 to move in a circular arc line, the electric guide rail 704 inside the first guide plate 703 drives the welding laser generator 705 to move in a circular arc line, and when the first guide plate 703 is a fan ring with a central angle greater than 180°, the two can cooperate to complete the circular movement of the welding laser generator 705 to perform ring weld welding work. When the steel structure workpiece cannot rotate, manual welding work is required, and after the welding laser generator 705 moves into the movable groove 702, the two L-shaped sealing plates 708 can be controlled to close the movable groove 702, so as to avoid damage to the welding laser generator 705 by external force. The use effect of the welding device is improved, and the protection effect is improved.

[0033] By controlling the fourth electric push rod 8111 to drive the guide ring 8112 to move towards the welding end face of the columnar steel, the laser ranging head 8118 is arranged on the inner wall of the second mounting plate 8115, which can detect the welding end face of the columnar steel, and then the cutting laser generator 8116 is controlled to reach the corresponding position and start, and the second guide plate 8114 is controlled to drive the second mounting plate 8115 to rotate, so that the cutting laser generator 8116 can perform flat cutting work on the welding end face of the columnar steel, and can also perform corresponding degree of preheating work, which avoids the welding abnormal problem caused by the uneven end face and improves the welding quality.

[0034] The two groups of columnar steels are respectively placed in the corresponding first guide assembly 807 and second guide assembly 810, and the corresponding support roller 8102 supports the columnar steel, and then the steering roller 8104 is controlled to abut against the outer wall of the columnar steel for rotating the columnar steel to complete the welding work of the annular weld, when the two groups of columnar steels are special-shaped, one end of the two groups of columnar steels welded is fixed with the two groups of second guide assemblies 810, the two groups of first guide assemblies 807 can adjust the position through the first rotating ring 803 and the second rotating ring 804 respectively, and can adjust the angle through the two groups of electric turntables 805, so as to fix the other end of the special-shaped columnar steel, so that the cutting and welding device can fix the special-shaped columnar steel of different shapes, and the steel structure limiting effect of the cutting and welding device is improved.

[0035] By controlling the two groups of lead screws 11 to rotate, under the threaded connection relationship between the two groups of lead screws 11 and the two groups of sliding blocks 12, the two groups of limiting blocks 13 move towards the opposite side and are separated from the limiting cutting mechanism 8, and then the top inclined surfaces of the two groups of abutting blocks 14 are respectively fitted on the bottom inclined surfaces of the corresponding first support columns 10, so that the two groups of first support columns 10 abut against the bottom of the limiting cutting mechanism 8 and lift the limiting cutting mechanism 8, and the disassembly work is completed.

[0036] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A laser cutting and welding integrated device for steel structure processing, comprising a processing platform, characterized in that: The top side edge of the processing platform is provided with a driving mechanism; the output end of the driving mechanism is drivingly connected with a welding mechanism; the top of the processing platform is movably penetrated by a limiting cutting mechanism; The welding mechanism comprises a mounting seat; the bottom of the mounting seat is provided with a movable groove; the movable groove movably penetrates a first guide plate capable of moving in a circular arc line; The cross section of the first guide plate is a fan ring, and the central angle is greater than 180°; the inner wall of the first guide plate is provided with an electric guide rail; the output end of the electric guide rail is drivingly connected with a welding laser generator for circular seam welding work; The outer wall of the first guide plate is provided with a first guide groove for power transmission; the inner wall of the first guide groove is provided with a plurality of groups of first guide teeth at equal intervals for driving; the bottom of the mounting seat is symmetrically provided with two groups of L-shaped sealing plates for sealing the movable groove.

2. The laser cutting and welding integrated device for steel structure processing according to claim 1, characterized in that: The processing platform is provided with an adjusting cavity; the top of the adjusting cavity is symmetrically movably penetrated by two groups of first supporting columns; the bottom of the first supporting column is provided as an inclined surface; the adjusting cavity is provided with two groups of lead screws; one end of the two groups of lead screws is fixedly connected, and the other end is respectively rotatably connected to the inner walls on both sides of the adjusting cavity; the screw directions of the two groups of lead screws are opposite, and the central axes are on the same straight line.

3. The laser cutting and welding integrated device for steel structure processing according to claim 2, characterized in that: The bottom inner wall of the adjusting cavity is slidingly connected with two groups of sliding blocks; the two groups of sliding blocks are respectively threadedly connected with a group of lead screws; the top of the two groups of sliding blocks is symmetrically drivingly connected with two groups of limiting blocks; each group of limiting blocks movably penetrates into the limiting cutting mechanism; the top of each group of the sliding blocks is symmetrically drivingly connected with two groups of abutting blocks; the top of each group of the abutting blocks is provided as an inclined surface, and movably abuts against the bottom of the corresponding group of first supporting columns.

4. The laser cutting and welding integrated device for steel structure processing according to claim 1, characterized in that: The mounting seat is provided with a transmission cavity; one side wall of the mounting seat is provided with a guide motor; the output end of the guide motor extends into the transmission cavity and is drivingly connected with a guide gear; the guide gear is meshingly connected with a plurality of groups of first guide teeth.

5. The laser cutting and welding integrated device for steel structure processing according to claim 1, characterized in that: The limiting cutting mechanism comprises a limiting base; two groups of limiting grooves are symmetrically provided on the bottom side walls of the limiting base; each group of limiting blocks movably penetrates into the corresponding group of limiting grooves; the top of the limiting base is provided with a first rotary ring and a second rotary ring; the top of the first rotary ring and the second rotary ring is respectively provided with a group of electric turntables; the top of each group of electric turntables is drivingly connected with a group of second supporting columns.

6. The laser cutting and welding integrated device for steel structure processing according to claim 5, characterized in that: The top of each group of second supporting columns is provided with a group of first guide assemblies; the top of the limiting base is provided with a collecting groove; the inner wall of the collecting groove is slidingly connected with two groups of auxiliary supporting plates; the top of each group of auxiliary supporting plates is provided with a group of second guide assemblies; one end of each group of second guide assemblies away from the second rotary ring is provided with a group of end face cutting assemblies.

7. The laser cutting and welding integrated device for steel structure processing according to claim 6, characterized in that: The second guide assembly comprises a first mounting plate; the cross section of the first mounting plate is U-shaped; the bottom inner wall of the first mounting plate is symmetrically provided with two groups of supporting rollers; the top two side outer walls of the first mounting plate are symmetrically provided with two groups of third electric push rods; the output end of each group of third electric push rods extends into the first mounting plate and is drivingly connected with a group of steering rollers.

8. The laser cutting and welding integrated device for steel structure processing according to claim 6, characterized in that: The end face cutting assembly comprises a plurality of fourth electric push rods; the fourth electric push rods are installed on the side wall of the first mounting plate away from the second rotating ring; the output ends of the fourth electric push rods are movably connected with guide rings; the top of the guide ring is provided with a through groove, and the length of the through groove is less than the diameter of the guide ring.

9. The laser cutting and welding integrated device for steel structure processing according to claim 8, characterized in that: A second guide groove is formed in the inner wall of the guide ring; a second guide plate is slidably connected in the second guide groove; the cross section of the second guide plate is a fan ring; a second mounting plate is arranged on the side wall of the second guide plate away from the first mounting plate.

10. The laser cutting and welding integrated device for steel structure processing according to claim 9, characterized in that: A cutting laser generator and an optical attenuator are symmetrically arranged on the inner wall of the second mounting plate; a plurality of laser range finder heads are equidistantly arranged on the inner wall of the second mounting plate; a plurality of second guide teeth are equidistantly arranged on the outer wall of the second guide plate.

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