Laser welding equipment and method for machining two-section steel pipe

Abstract

The invention belongs to the technical field of laser welding, particularly relates to laser welding equipment and a laser welding method for machining two-section steel pipes, and provides the following scheme for solving the problems that the welding distance is difficult to effectively and quickly adjust during welding, so that excessive welding is easily caused by insufficient distance or insufficient welding is easily caused by large distance, and the welding quality is influenced. Comprising a fixed base, a mounting opening is formed in the top of the fixed base, a mounting seat is fixedly connected to the inner wall of the mounting opening, a welding adjusting module is arranged in the mounting seat, and an adjusting plate seat is movably connected to the outer wall of the mounting seat. The laser welding equipment and method for machining the two-section type steel pipe have the effect of improving the welding quality, and when the two-section type steel pipe is subjected to angle welding, the device can adjust the distance between the laser welding gun body and a welding point according to the shape change of a welding section, so that the situation that the welding distance is insufficient or large is avoided, and the welding quality is improved. And the use effect of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a laser welding device and method for processing a two-stage steel pipe. Background Art

[0002] Steel pipe is a steel material with a hollow section whose length is much larger than its diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular and special-shaped steel pipes; according to the production process, it is divided into seamless steel pipes and welded steel pipes, of which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn) types, and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes.

[0003] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0004] When laser welding an existing two-section steel pipe, the weld cross section will become elliptical as the welding angle changes. Therefore, the distance between the welding equipment and the welding points at different positions will change. However, it is difficult to adjust the welding distance effectively and quickly during welding. Therefore, it is easy to cause excessive welding due to insufficient distance or insufficient welding due to large distance, thus affecting the welding quality. Summary of the invention

[0005] The present invention discloses a laser welding device and method for processing a two-section steel pipe, aiming to solve the technical problem that when the existing two-section steel pipe in the background technology is laser welded, as its welding angle changes, the welding cross-section will present an elliptical shape, so the distance between the welding equipment and the welding points at different positions will change, but it is difficult to effectively and quickly adjust the welding distance during welding, so it is easy to cause excessive welding due to insufficient distance or insufficient welding due to large distance, thereby affecting the welding quality.

[0006] The present invention provides a two-stage laser welding equipment for steel pipe processing, comprising a fixed base, the top of the fixed base is provided with a mounting opening, the inner wall of the mounting opening is fixedly connected with the mounting base, and a welding adjustment module is arranged inside the mounting base, the outer wall of the mounting base is movably connected with an adjusting plate seat, the bottom of the adjusting plate seat is fixedly connected with a mounting bracket, the bottom of the mounting bracket is fixedly connected with a ball seat, and a movable ball wheel is arranged inside the ball seat, a locking dust removal module is arranged at the bottom of the adjusting plate seat, and the top of the fixed base and the adjusting plate seat are both fixedly connected with a guide rail seat, one side inner wall of the two guide rail seats are both fixedly connected with a stepper motor, the output shafts of the two stepper motors are both connected with a screw rod member through a coupling, one end of the two screw rod members are respectively movably connected with the inner wall of one side of the two guide rail seats, and the outer wall of the screw rod member and the outer wall of the guide rail seat on the same side are both provided with the same movable base, and the two movable bases are provided with a steel pipe fixing module.

[0007] By providing a fixed base, a welding adjustment module, an adjustment plate seat, a mounting bracket, a movable ball wheel, a ball seat, a locking dust removal module, a stepper motor, a screw rod, a movable base, a guide rail seat and a steel pipe fixing module, the welding adjustment module can adjust the distance between the laser welding gun body and the welding point when in use, so as to avoid the situation where the distance between the laser welding gun body and the welding point is insufficient or large during use, thereby avoiding affecting the welding quality and meeting the welding use requirements of the device; the locking dust removal module can absorb and process the smoke generated by welding when in use, so as to avoid the smoke from escaping and being inhaled by workers, so as to increase the safety of the device, and at the same time can fix the welding angle during use, increase the welding stability and meet the use requirements of the device; the steel pipe fixing module is used in conjunction with the stepper motor, the screw rod and the movable base, so as to fix the steel pipe and connect it with the welding part before welding during use, etc., so as to increase the use effect of the device.

[0008] In a preferred embodiment, the welding adjustment module includes a universal motor, which is fixedly connected to the bottom inner wall of the mounting seat, and the output shaft of the universal motor is connected to the mounting frame through a coupling, and the inner walls of the opposite sides of the mounting frame are fixedly connected to fixed rings, and the outer walls of the two fixed rings are movably connected to movable rings, and the outer wall of one movable ring is fixedly connected to a gear ring, and a circular hole is provided on the outer wall of one side of the mounting frame, and the inner wall of the circular hole is fixedly connected to a power motor, and the output shaft of the power motor is connected to a transmission gear through a coupling, and the transmission gear is meshed with the gear ring; the outer walls of the two movable rings are fixedly connected to connecting arc plates, and the outer walls of one side of the two connecting arc plates are fixedly connected to the same adjustment arc plate, the adjustment arc plate is located between the two fixed rings, and the outer wall of one side of the adjustment arc plate is provided with an adjustment port, the inner wall of the adjustment port is movably connected to a limit rod seat, one end of the limit rod seat is fixedly connected to a fixed frame, and an adjustment contact wheel is movably connected to the fixed frame, and a pressure spring is provided on the outer wall of the limit rod seat, and one end of the pressure spring is fixedly connected to the adjustment The cam is secured to the inner wall of the two guide wheels, and the other end of the pressure spring is fixedly connected to the outer wall of the limit rod seat; an inner wall of one side of the adjustment arc plate is fixedly connected to an adjusting spring rod, and one end of the adjusting spring rod is fixedly connected to a welding bracket, an inner wall of the welding bracket is fixedly connected to a laser welding gun body, and two inner walls on opposite sides of the two connecting arc plates are movably connected to two shaft rods, the outer walls of the two shaft rods are fixedly connected to a winding wheel, and the two winding wheels are provided with connecting cables, one end of the two connecting cables are respectively fixedly connected to the other end of the limit rod seat and the outer wall of one side of the welding bracket; one end of the two shaft rods are respectively fixedly connected to gear one and gear two, and gear one is meshed with gear two, and the outer walls of the two shaft rods are respectively provided with torsion springs, one end of the two torsion springs are respectively fixedly connected to the outer walls of one side of the two winding wheels, and the other end of the two torsion springs are fixedly connected to the inner wall of one side of one of the connecting arc plates, and the inner walls on opposite sides of the two connecting arc plates are fixedly connected to two mounting parts, and the two mounting parts are fixedly connected to guide sleeves, and the two connecting cables pass through the two guide sleeves respectively.

[0009] By providing a welding adjustment module, the welding adjustment module can adjust the distance between the laser welding gun body and the welding point according to the angle change during the welding of the two-section steel pipe, thereby avoiding the situation where the distance between the laser welding gun body and the welding point is insufficient or large during use, thereby avoiding excessive welding or insufficient welding effect, thereby increasing the welding quality when the device is used and improving the use effect of the device. When in use, the device can adjust the distance according to different angles, thereby increasing the applicability of the device.

[0010] In a preferred embodiment, the locked dust removal module includes an air pump, which is fixedly connected to the bottom of the adjustment plate seat, the output end of the air pump is fixedly connected to the exhaust gas equipment body, the input end of the air pump is fixedly connected to connecting pipe 1 and connecting pipe 2, the outer walls of connecting pipe 1 and connecting pipe 2 are both provided with control valves, and the input ends of connecting pipe 1 and connecting pipe 2 are both fixedly connected to connecting pipe fittings, the outer walls of the two connecting pipe fittings are both fixedly connected to connecting frames, and the tops of the two connecting frames are both fixedly connected to the bottom of the adjustment plate seat; both ends of one of the connecting pipe fittings are fixedly connected to Connecting pipes, the input ends of the two connecting pipes are fixedly connected to the same dust removal ring, the outer wall of the dust removal ring is provided with a plurality of smoke and dust outlets, the outer wall of the dust removal ring is fixedly connected to a fixed bracket, one side outer wall of the fixed bracket is fixedly connected to one side outer wall of one of the fixed ring parts, and the bottom of the adjustment plate seat is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a mounting plate, two locking suction cups are fixedly connected to the mounting plate, the tops of the two locking suction cups are fixedly connected to negative pressure pipes, and the output ends of the two negative pressure pipes are connected to the inside of another connecting pipe fitting.

[0011] By providing a locking dust removal module, the locking dust removal module can lock its position after the adjustment plate seat is adjusted for angle adjustment during use, thereby avoiding changes in the angle between the two end steel pipes during welding, thereby increasing the welding stability of the device during use and improving the use effect of the device. At the same time, during welding, the locking dust removal module can absorb the smoke generated by welding, and absorb or process it, thereby avoiding the escape of smoke generated by welding, and thereby avoiding the escaped smoke from being inhaled by workers, thereby increasing the safety of the device and further increasing the use effect of the device.

[0012] In a preferred scheme, the steel pipe fixing module includes two fixing seats, the two fixing seats are respectively fixedly connected to the tops of the two movable bases, one side outer walls of the two fixing seats are fixedly connected with a mounting ring frame, the outer walls of the two mounting ring frames are movably connected with a gear plate, one side outer walls of the two gear plates are provided with four arc-shaped openings, and the tops of the two movable bases are fixedly connected with a driving motor, the output shafts of the two driving motors are connected with a driving gear through a coupling, and the two driving gears are respectively meshed with the two gear plates; four movable openings are provided on the two fixing seats, one side inner walls of the multiple movable openings are provided with a fixed through-opening, the inner walls of the multiple movable openings are movably connected with a fixed block, the outer walls of the multiple fixed blocks are fixedly connected with a connecting rod, the multiple connecting rods respectively pass through the multiple fixed through-openings, one end of the multiple connecting rods are fixedly connected with a fixed splint, and one side outer walls of the multiple fixed blocks are fixedly connected with a guide rod, and the multiple guide rods are respectively located inside the multiple arc-shaped openings.

[0013] By providing a steel pipe fixing module, the steel pipe fixing module is used to fix the steel pipe when in use, so as to facilitate the equipment to perform welding operations. At the same time, when fixing, the device can fix steel pipes of different thicknesses according to the size of the steel pipe, so as to increase the applicability of the device when in use, increase the use effect of the device, and the steel pipe fixing module can be used in conjunction with a stepper motor, a screw rod and a movable base when in use, so as to perform operations such as docking the welding parts of the steel pipe before welding, thereby increasing the diversity of the use of the device.

[0014] A laser welding method for processing a two-stage steel pipe, using the laser welding device for processing a two-stage steel pipe as described above, comprises the following steps:

[0015] Step 1: The two-end steel pipes to be welded are respectively arranged inside two fixing seats, and the steel pipe fixing module is started to fix the two steel pipes;

[0016] Step 2: After fixing, rotate the adjustment plate seat according to actual needs to perform angled welding of the two-end steel pipes, and adjust the angle of the welding adjustment module at the same time. After adjustment, start the locking dust removal module to lock the position of the adjustment plate seat by locking the dust removal module;

[0017] Step 3: After the angle is locked, start the stepper motor and the screw rod, so that the movable base drives the two sections of steel pipe to move until the welding position contacts, and then start the welding adjustment module to perform the welding operation;

[0018] Step 4: During welding, the dust removal module is locked and the control valve on the connecting pipe 1 is closed while starting, and the control valve on the connecting pipe 2 is opened to handle the welding smoke until the welding is completed.

[0019] From the above, it can be seen that the laser welding equipment for two-section steel pipe processing provided by the present invention has the function of improving the welding quality. When the two-section steel pipe is welded at an angle, the device can adjust the distance between the laser welding gun body and the welding point according to the shape change of the welding cross-section, thereby avoiding insufficient welding spacing or large spacing, so as to increase the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the split structure of the fixed base and the adjustment plate base of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0022] Figure 3 This is a schematic structural diagram of a welding adjustment module of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of some structures;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of some structures;

[0025] Figure 6 This is a schematic diagram of the combined structure of gear 1 and gear 2 of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a locking dust removal module of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of some structures;

[0028] Fig. 9 This is a schematic diagram of the combined structure of a guide rail seat and a steel pipe fixing module of a two-stage laser welding device for steel pipe processing proposed by the present invention;

[0029] Fig.10 This is a schematic structural diagram of a steel pipe fixing module of a two-stage laser welding device for steel pipe processing proposed by the present invention.

[0030] In the figure: 1, fixed base; 2, adjustment plate seat; 3, welding adjustment module; 301, universal motor; 302, mounting frame; 303, transmission gear; 304, power motor; 305, adjustment arc plate; 306, fixed ring; 307, gear one; 308, gear two; 309, guide sleeve; 310, movable sleeve; 311, gear ring; 312, connecting arc plate; 313, welding bracket; 314, adjustment spring rod; 315, laser welding gun body; 316, fixed frame; 317, adjustment touch wheel; 318, pressure spring; 319, limit rod seat; 320, connecting cable; 321, torsion spring; 322, shaft rod; 323, winding wheel; 324, mounting part; 4, guide rail seat; 5, steel pipe fixing module; 501, driving gear; 502, driving 1. Driving motor; 503. Arc-shaped mouth; 504. Gear plate; 505. Fixed seat; 506. Movable mouth; 507. Guide rod; 508. Fixed block; 509. Connecting rod; 510. Fixed splint; 511. Mounting ring frame; 6. Mounting mouth; 7. Locking dust removal module; 701. Air pump; 702. Connecting pipe; 703. Connecting pipe; 704. Dust removal ring; 705. Fixed bracket; 706. Tail gas equipment body; 707. Connecting frame; 708. Negative pressure pipe; 709. Electric telescopic rod; 710. Mounting plate; 711. Locking suction cup; 712. Control valve; 713. Connecting pipe one; 714. Connecting pipe two; 8. Mounting seat; 9. Mounting bracket; 10. Ball seat; 11. Movable ball wheel; 12. Stepping motor; 13. Screw rod; 14. Movable base. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The present invention discloses a two-stage laser welding device for steel pipe processing, which is mainly used in scenarios where it is difficult to effectively and quickly adjust the welding spacing during welding, so it is easy to cause excessive welding due to insufficient spacing or insufficient welding due to large spacing, thereby affecting the welding quality.

[0033] Reference Figure 1-Figure 10A two-stage laser welding device for steel pipe processing includes a fixed base 1, a mounting opening 6 is opened on the top of the fixed base 1, a mounting seat 8 is fixedly connected to the inner wall of the mounting opening 6, and a welding adjustment module 3 is arranged inside the mounting seat 8, an outer wall of the mounting seat 8 is connected to an adjustment plate seat 2 through a bearing, a mounting bracket 9 is fixedly connected to the bottom of the adjustment plate seat 2, a ball seat 10 is fixedly connected to the bottom of the mounting bracket 9, and a movable ball wheel 11 is arranged inside the ball seat 10, and a locking and removing Dust module 7, and the tops of the fixed base 1 and the adjustment plate seat 2 are fixedly connected with the guide rail seat 4, the inner walls of one side of the two guide rail seats 4 are fixedly connected with the stepper motors 12, the output shafts of the two stepper motors 12 are connected with the screw rods 13 through the couplings, one end of the two screw rods 13 are respectively connected with the inner walls of one side of the two guide rail seats 4 through bearings, and the outer walls of the screw rods 13 and the outer walls of the guide rail seats 4 on the same side are provided with the same movable base 14, and the two movable bases 14 are provided with steel pipe fixing modules 5.

[0034] Specifically, the welding adjustment module 3 can adjust the distance between the laser welding gun body 315 and the welding point when in use, so as to avoid the situation where the distance between the laser welding gun body 315 and the welding point is insufficient or large, thereby avoiding affecting the welding quality and meeting the welding use requirements of the device; the locking dust removal module 7 can absorb and process the smoke generated by welding when in use, so as to avoid the smoke from escaping and being inhaled by workers, so as to increase the safety of the device, and at the same time, it can fix the welding angle when in use, increase the welding stability, and meet the use requirements of the device; the steel pipe fixing module 5 is used in conjunction with the stepping motor 12, the screw rod 13 and the movable base 14 when in use, so as to fix the steel pipe and connect it with the welding part before welding, etc., so as to increase the use effect of the device.

[0035] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, the welding adjustment module 3 includes a universal motor 301, which is fixedly connected to the bottom inner wall of the mounting seat 8, and the output shaft of the universal motor 301 is connected to the mounting frame 302 through a coupling, and the inner walls of the opposite sides of the mounting frame 302 are fixedly connected to fixed rings 306, and the outer walls of the two fixed rings 306 are rotatably connected to movable rings 310, and the outer wall of one movable ring 310 is fixedly connected to a gear ring 311, and a circular hole is opened on the outer wall of one side of the mounting frame 302, and the inner wall of the circular hole is fixedly connected to a power motor 304, and the output shaft of the power motor 304 is connected to the transmission gear 304 through a coupling. 3, the transmission gear 303 is meshed with the gear ring 311; the outer walls of the two movable rings 310 are fixedly connected with connecting arc plates 312, and the outer walls of one side of the two connecting arc plates 312 are fixedly connected with the same adjusting arc plate 305, the adjusting arc plate 305 is located between the two fixed rings 306, and the outer wall of one side of the adjusting arc plate 305 is provided with an adjusting port, the inner wall of the adjusting port is slidably connected with a limiting rod seat 319, one end of the limiting rod seat 319 is fixedly connected with a fixing frame 316, and the fixing frame 316 is connected with an adjusting tactile wheel 317 through a bearing, and the outer wall of the limiting rod seat 319 is provided with a pressure spring 318, one end of the pressure spring 318 is fixedly connected to the adjusting arc plate 30 5, the other end of the pressure spring 318 is fixedly connected to the outer wall of the limit rod seat 319; the inner wall of one side of the adjustment arc plate 305 is fixedly connected to the adjustment spring rod 314, one end of the adjustment spring rod 314 is fixedly connected to the welding bracket 313, the inner wall of the welding bracket 313 is fixedly connected to the laser welding gun body 315, and the inner walls of the opposite sides of the two connecting arc plates 312 are connected to two shaft rods 322 through bearings, the outer walls of the two shaft rods 322 are fixedly connected to the winding wheels 323, and the two winding wheels 323 are provided with connecting cables 320, one end of the two connecting cables 320 is respectively connected to the other end of the limit rod seat 319 and one end of the welding bracket 313 The side outer wall is fixedly connected; one end of the two shaft rods 322 is respectively fixedly connected to gear 1 307 and gear 2 308, gear 1 307 and gear 2 308 are meshed, the outer walls of the two shaft rods 322 are provided with torsion spring members 321, one end of the two torsion spring members 321 is respectively fixedly connected to the outer wall of one side of the two winding wheels 323, the other ends of the two torsion spring members 321 are fixedly connected to the inner wall of one side of one of the connecting arc plates 312, and two mounting members 324 are fixedly connected to the inner walls on the opposite side of the two connecting arc plates 312, and the two mounting members 324 are fixedly connected to the guide sleeves 309, and the two connecting cables 320 pass through the two guide sleeves 309 respectively.

[0036] Specifically, when in use, the universal motor 301 is started, and the universal motor 301 drives the mounting frame 302 to rotate so as to adjust the welding angle of the laser welding gun body 315. During welding, the limit rod seat 319 is pulled to make the adjustment contact wheel 317 move toward the laser welding gun body 315 until the two-end steel pipes to be welded are butted. At this time, the limit rod seat 319 is released, and the pressure spring 318 can drive the limit rod seat 319 to move toward the steel pipe, thereby making the limit rod seat 319 drive the fixing frame 316 to move until the adjustment contact wheel 317 contacts the welding seam area of ​​the two-section steel pipe. In this process, as the limit rod seat 319 moves, one of the connecting cables 320 will be pulled, thereby making the connecting cable 320 drive one of the winding wheels 323 to rotate, thereby driving the gear 1 307 to rotate. The two 308 are meshed, so that the other winding wheel 323 rotates to relax the other connecting cable 320, and the torsion spring 321 is deformed. At this time, the adjusting spring rod 314 will drive the welding bracket 313 and the laser welding gun body 315 to move toward the steel pipe after the connecting cable 320 is relaxed to adjust the spacing. Then the laser welding gun body 315 is started for welding, and the power motor 304 is started at the same time. The power motor 304 drives the transmission gear 303 to rotate. Since the transmission gear 303 is meshed with the gear ring 311, the power motor 304 drives the movable ring 310, the connecting arc plate 312 and the adjusting arc plate 305 to rotate to perform welding. As the welding is performed, the adjusting contact wheel 317 drives the laser welding gun body 315 to move to control the spacing between the laser welding gun body 315 and the welding point until the welding is completed;

[0037] In a specific application scenario, the welding adjustment module 3 is suitable for the angle welding link of a two-section steel pipe, that is, the welding adjustment module 3 can adjust the distance between the laser welding gun body 315 and the welding point according to the angle change during the welding of the two-section steel pipe, thereby avoiding the situation where the distance between the laser welding gun body 315 and the welding point is insufficient or large during use, thereby avoiding excessive welding or insufficient welding effect, so as to increase the welding quality when the device is used and improve the use effect of the device. When in use, the device can adjust the distance according to different angles, thereby increasing the applicability of the device.

[0038] Reference Figure 2 , Figure 7 and Figure 8In a preferred embodiment, the locking dust removal module 7 includes an air pump 701, which is fixedly connected to the bottom of the adjustment plate seat 2, and the output end of the air pump 701 is fixedly connected to the exhaust device body 706, and the input end of the air pump 701 is fixedly connected to the connecting pipe 1 713 and the connecting pipe 2 714, and the outer walls of the connecting pipe 1 713 and the connecting pipe 2 714 are both provided with a control valve 712, and the input ends of the connecting pipe 1 713 and the connecting pipe 2 714 are both fixedly connected to the connecting pipe 702, and the outer walls of the two connecting pipes 702 are fixedly connected to the connecting frame 707, and the tops of the two connecting frames 707 are fixedly connected to the bottom of the adjustment plate seat 2; both ends of one of the connecting pipes 702 are fixedly connected There is a connecting pipe 703, and the input ends of the two connecting pipes 703 are fixedly connected to the same dust removal ring 704, and the outer wall of the dust removal ring 704 is provided with a plurality of smoke and dust outlets. The outer wall of the dust removal ring 704 is fixedly connected to a fixed bracket 705, and one side outer wall of the fixed bracket 705 is fixedly connected to one side outer wall of one of the fixed ring parts 306, and the bottom of the adjustment plate seat 2 is fixedly connected to an electric telescopic rod 709, and the output end of the electric telescopic rod 709 is fixedly connected to a mounting plate 710, and two locking suction cups 711 are fixedly connected to the mounting plate 710, and the tops of the two locking suction cups 711 are fixedly connected to negative pressure pipes 708, and the output ends of the two negative pressure pipes 708 are connected to the inside of another connecting pipe fitting 702.

[0039] Specifically, after the adjustment plate seat 2 is adjusted, the air pump 701 and the electric telescopic rod 709 are started, and the electric telescopic rod 709 drives the mounting plate 710 and the locking suction cup 711 to descend, so that the locking suction cup 711 contacts the ground. At this time, the control valve 712 on the connecting pipe 1 713 is opened, and the control valve 712 on the connecting pipe 2 714 is closed. The air pump 701 discharges the gas inside one of the connecting pipes 702 through the connecting pipe 1 713, so that the inside is in a negative pressure state, and then the negative pressure pipe 708 and the locking suction cup 711 are connected. The disk 711 locks the position of the adjustment plate seat 2. During welding, the control valve 712 on the connecting pipe 1 713 is closed, and the control valve 712 on the connecting pipe 2 714 is opened. At this time, the air pump 701 can make the inside of the other connecting pipe 702 in a negative pressure state through the connecting pipe 2 714, and then absorb the smoke generated during welding through the connecting pipe 703 and the dust removal ring 704, and after absorption, it is transported to the inside of the tail gas equipment body 706 through the air pump 701 for treatment, and discharged after treatment;

[0040] In a specific application scenario, the locking dust removal module 7 is suitable for welding fume treatment and angle fixing, that is, the locking dust removal module 7 can lock its position after the adjustment plate seat 2 is adjusted for angle adjustment during use, thereby avoiding changes in the angle between the two end steel pipes during welding, thereby increasing the welding stability of the device during use and improving the use effect of the device. At the same time, when welding is performed, the locking dust removal module 7 can absorb the fume generated by welding, and absorb or process it, thereby avoiding the fume generated by welding from escaping, thereby avoiding the escape of the fume from workers, thereby increasing the safety of the device and further increasing the use effect of the device.

[0041] Reference Figure 1 , Figure 2 , Fig. 9 and Fig.10 In a preferred embodiment, the steel pipe fixing module 5 includes two fixing seats 505, the two fixing seats 505 are respectively fixedly connected to the tops of the two movable bases 14, one side outer wall of the two fixing seats 505 is fixedly connected with a mounting ring frame 511, the outer walls of the two mounting ring frames 511 are rotatably connected with a gear plate 504, one side outer wall of the two gear plates 504 is provided with four arc-shaped openings 503, and the tops of the two movable bases 14 are fixedly connected with a driving motor 502, the output shafts of the two driving motors 502 are connected with a driving gear 501 through a coupling, and the two driving gears 501 are respectively Meshing with two gear plates 504; four movable openings 506 are respectively opened on the two fixed seats 505, and fixed through-openings are opened on the inner walls of one side of the multiple movable openings 506, and the inner walls of the multiple movable openings 506 are slidably connected with fixed blocks 508, and the outer walls of the multiple fixed blocks 508 are fixedly connected with connecting rods 509, and the multiple connecting rods 509 pass through the multiple fixed through-openings respectively, and one end of the multiple connecting rods 509 is fixedly connected with a fixed splint 510, and the outer walls of one side of the multiple fixed blocks 508 are fixedly connected with guide rods 507, and the multiple guide rods 507 are respectively located inside the multiple arc-shaped openings 503.

[0042] Specifically, when in use, the two end steel pipes to be welded are respectively provided with the inside of the two fixing seats 505, and the driving motor 502 is started, and the driving gear 501 is driven to rotate by the driving motor 502. Since the driving gear 501 is meshed with the gear plate 504, the gear plate 504 can be driven to rotate, and then the guide rod 507 is driven to move through the arc-shaped opening 503, and then the guide rod 507 drives the fixed block 508, the connecting rod 509 and the fixed clamping plate 510 to move until the fixed tooth plate contacts the surface of the steel pipe to complete the fixation;

[0043] In a specific application scenario, the steel pipe fixing module 5 is suitable for the steel pipe welding and fixing link, that is, the steel pipe fixing module 5 is used to fix the steel pipe when in use, so as to facilitate the equipment to perform welding operations. At the same time, when fixing, the device can fix steel pipes of different thicknesses according to the size of the steel pipe, so as to increase the applicability of the device when in use, and increase the use effect of the device. The steel pipe fixing module 5 can be used in conjunction with the stepper motor 12, the screw rod 13 and the movable base 14 when in use, so as to perform operations such as docking the welding parts of the steel pipe before welding, thereby increasing the diversity of the device when in use.

[0044] A laser welding method for processing a two-stage steel pipe, using the laser welding device for processing a two-stage steel pipe as described above, comprises the following steps:

[0045] Step 1: The two end steel pipes to be welded are respectively provided with the inside of two fixing seats 505, and the driving motor 502 is started, and the driving motor 502 drives the driving gear 501 to rotate. Since the driving gear 501 is meshed with the gear plate 504, the gear plate 504 can be driven to rotate, and then the guide rod 507 is driven to move through the arc-shaped opening 503, and then the guide rod 507 drives the fixing block 508, the connecting rod 509 and the fixing clamping plate 510 to move until the fixing tooth plate contacts the surface of the steel pipe to complete the fixing;

[0046] Step 2: After fixing, the adjustment plate seat 2 is rotated according to actual needs so as to perform angled welding of the two-end steel pipes. At the same time, the universal motor 301 is started, and the mounting frame 302 is driven to rotate by the universal motor 301 to adjust the welding angle of the laser welding gun body 315. After adjustment, the air pump 701 and the electric telescopic rod 709 are started, and the electric telescopic rod 709 drives the mounting plate 710 and the locking suction cup 711 to descend, so that the locking suction cup 711 contacts the ground. At this time, the control valve 712 on the connecting pipe 1 713 is opened, and the control valve 712 on the connecting pipe 2 714 is closed. The air pump 701 discharges the gas inside one of the connecting pipes 702 through the connecting pipe 1 713, so that the inside is in a negative pressure state, and then the position of the adjustment plate seat 2 is locked through the negative pressure pipe 708 and the locking suction cup 711;

[0047] Step 3: During welding, the limit rod seat 319 is pulled to make the adjustment wheel 317 move toward the laser welding gun body 315, and the stepping motor 12 and the screw rod 13 are started to make the movable base 14 drive the two sections of steel pipe to move until the two end steel pipes to be welded are butted. At this time, the limit rod seat 319 is released, and the pressure spring 318 can drive the limit rod seat 319 to move toward the steel pipe, thereby making the limit rod seat 319 drive the fixing frame 316 to move until the adjustment wheel 317 contacts the welding seam area of ​​the two-section steel pipe. In this process, as the limit rod seat 319 moves, one of the connecting cables 320 will be pulled, and the connecting cable 320 will drive one of the winding wheels 323 to rotate, thereby driving the gear 1 307 to rotate. Since the gear 1 307 is meshed with the gear 2 308, the other A winding wheel 323 rotates to loosen another connecting cable 320, and the torsion spring 321 is deformed. At this time, the adjusting spring rod 314 will drive the welding bracket 313 and the laser welding gun body 315 to move toward the steel pipe after the connecting cable 320 is loosened to adjust the spacing. Then, the laser welding gun body 315 is started for welding, and the power motor 304 is started at the same time. The power motor 304 drives the transmission gear 303 to rotate. Since the transmission gear 303 is meshed with the gear ring 311, the power motor 304 drives the movable ring 310, the connecting arc plate 312 and the adjusting arc plate 305 to rotate to perform welding. As the welding is performed, the adjusting contact wheel 317 drives the laser welding gun body 315 to move to control the spacing between the laser welding gun body 315 and the welding point until the welding is completed.

[0048] Step 4. During the welding process, close the control valve 712 on the connecting pipe 1 713 and open the control valve 712 on the connecting pipe 2 714. At this time, the air pump 701 can make the inside of the other connecting pipe 702 in a negative pressure state through the connecting pipe 2 714, and then absorb the smoke generated during welding through the connecting pipe 703 and the dust removal ring 704. After absorption, the smoke is transported to the inside of the exhaust equipment body 706 through the air pump 701 for treatment, and discharged after treatment until the welding is completed.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A two-stage laser welding device for steel pipe processing, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is provided with a mounting opening (6), the inner wall of the mounting opening (6) is fixedly connected to a mounting seat (8), and a welding adjustment module (3) is arranged inside the mounting seat (8), the outer wall of the mounting seat (8) is movably connected to an adjustment plate seat (2), the bottom of the adjustment plate seat (2) is fixedly connected to a mounting bracket (9), the bottom of the mounting bracket (9) is fixedly connected to a ball seat (10), and a movable ball wheel (11) is arranged inside the ball seat (10), the bottom of the adjustment plate seat (2) is provided with a locking dust removal module (7), and the fixed base The tops of the seat (1) and the adjustment plate seat (2) are fixedly connected to a guide rail seat (4), the inner walls of one side of the two guide rail seats (4) are fixedly connected to a stepper motor (12), the output shafts of the two stepper motors (12) are connected to a screw rod (13) through a coupling, one end of the two screw rods (13) are movably connected to the inner walls of one side of the two guide rail seats (4), and the outer walls of the screw rods (13) and the outer walls of the guide rail seats (4) on the same side are both provided with the same movable base (14), and the two movable bases (14) are provided with steel pipe fixing modules (5).

2. A two-stage laser welding equipment for steel pipe processing according to claim 1, characterized in that: The welding adjustment module (3) comprises a universal motor (301), the universal motor (301) is fixedly connected to the bottom inner wall of the mounting seat (8), the output shaft of the universal motor (301) is connected to the mounting frame (302) via a coupling, the inner walls of opposite sides of the mounting frame (302) are fixedly connected to fixed rings (306), the outer walls of the two fixed rings (306) are movably connected to movable sleeves (310), the outer wall of one movable sleeve (310) is fixedly connected to a gear ring (311), and a circular hole is opened on the outer wall of one side of the mounting frame (302), the inner wall of the circular hole is fixedly connected to a power motor (304), the output shaft of the power motor (304) is connected to a transmission gear (303) via a coupling, and the transmission gear (303) is meshed with the gear ring (311).

3. The two-stage laser welding equipment for steel pipe processing according to claim 2 is characterized in that: The outer walls of the two movable sleeve rings (310) are fixedly connected with a connecting arc plate (312), and the outer walls of one side of the two connecting arc plates (312) are fixedly connected with the same adjusting arc plate (305), the adjusting arc plate (305) is located between the two fixing ring members (306), and an adjusting opening is opened on the outer wall of one side of the adjusting arc plate (305), and the inner wall of the adjusting opening is movably connected with a limiting rod seat (319), one end of the limiting rod seat (319) is fixedly connected with a fixing frame (316), and the fixing frame (316) is movably connected with an adjusting contact wheel (317), and the outer wall of the limiting rod seat (319) is provided with a pressure spring (318), one end of the pressure spring (318) is fixedly connected to the inner wall of one side of the adjusting arc plate (305), and the other end of the pressure spring (318) is fixedly connected to the outer wall of the limiting rod seat (319).

4. The two-stage laser welding equipment for steel pipe processing according to claim 3 is characterized in that: An adjustment spring rod (314) is fixedly connected to the inner wall of one side of the adjustment arc plate (305), one end of the adjustment spring rod (314) is fixedly connected to the welding bracket (313), the inner wall of the welding bracket (313) is fixedly connected to the laser welding gun body (315), and two shaft rods (322) are movably connected to the inner walls of the opposite sides of the two connecting arc plates (312), the outer walls of the two shaft rods (322) are fixedly connected to the winding wheels (323), and the two winding wheels (323) are provided with connecting cables (320), and one end of the two connecting cables (320) is respectively fixedly connected to the other end of the limit rod seat (319) and the outer wall of one side of the welding bracket (313).

5. The two-stage laser welding equipment for steel pipe processing according to claim 4 is characterized in that: One end of the two shaft rods (322) is respectively fixedly connected to gear one (307) and gear two (308), and gear one (307) and gear two (308) are meshed with each other. The outer walls of the two shaft rods (322) are provided with torsion springs (321). One end of the two torsion springs (321) is respectively fixedly connected to the outer wall of one side of the two winding wheels (323), and the other ends of the two torsion springs (321) are respectively fixedly connected to the inner wall of one side of one of the connecting arc plates (312). Two mounting members (324) are fixedly connected to the inner walls on the opposite sides of the two connecting arc plates (312), and the two mounting members (324) are fixedly connected to guide sleeves (309), and the two connecting cables (320) pass through the two guide sleeves (309) respectively.

6. The two-stage laser welding equipment for steel pipe processing according to claim 5, characterized in that: The locking dust removal module (7) comprises an air pump (701), the air pump (701) is fixedly connected to the bottom of the adjustment plate seat (2), the output end of the air pump (701) is fixedly connected to the exhaust gas equipment body (706), the input end of the air pump (701) is fixedly connected to a connecting pipe 1 (713) and a connecting pipe 2 (714), the outer walls of the connecting pipe 1 (713) and the connecting pipe 2 (714) are both provided with a control valve (712), and the input ends of the connecting pipe 1 (713) and the connecting pipe 2 (714) are both fixedly connected to a connecting pipe fitting (702), the outer walls of the two connecting pipe fittings (702) are both fixedly connected to a connecting frame (707), and the tops of the two connecting frames (707) are both fixedly connected to the bottom of the adjustment plate seat (2).

7. The two-stage laser welding equipment for steel pipe processing according to claim 6, characterized in that: Both ends of one of the connecting pipes (702) are fixedly connected to connecting pipes (703), the input ends of the two connecting pipes (703) are fixedly connected to the same dust removal ring (704), the outer wall of the dust removal ring (704) is provided with a plurality of smoke and dust ports, the outer wall of the dust removal ring (704) is fixedly connected to a fixing bracket (705), one side outer wall of the fixing bracket (705) is fixedly connected to one side outer wall of one of the fixing rings (306), and the bottom of the adjustment plate seat (2) is fixedly connected to an electric telescopic rod (709), the output end of the electric telescopic rod (709) is fixedly connected to a mounting plate (710), two locking suction cups (711) are fixedly connected to the mounting plate (710), the tops of the two locking suction cups (711) are fixedly connected to a negative pressure pipe (708), and the output ends of the two negative pressure pipes (708) are connected to the inside of the other connecting pipe (702).

8. The two-stage laser welding equipment for steel pipe processing according to claim 7, characterized in that: The steel pipe fixing module (5) comprises two fixing seats (505), the two fixing seats (505) are respectively fixedly connected to the tops of the two movable bases (14), one side outer wall of the two fixing seats (505) is fixedly connected to a mounting ring frame (511), the outer walls of the two mounting ring frames (511) are movably connected to a gear plate (504), one side outer wall of the two gear plates (504) is provided with four arc-shaped openings (503), and the tops of the two movable bases (14) are respectively fixedly connected to a driving motor (502), the output shafts of the two driving motors (502) are connected to a driving gear (501) through a coupling, and the two driving gears (501) are respectively meshed with the two gear plates (504).

9. The two-stage laser welding equipment for steel pipe processing according to claim 8, characterized in that: Four movable openings (506) are provided on the two fixed seats (505), and a fixed opening is provided on one side inner wall of the plurality of movable openings (506), and the inner walls of the plurality of movable openings (506) are movably connected to fixed blocks (508), and the outer walls of the plurality of fixed blocks (508) are fixedly connected to connecting rods (509), and the plurality of connecting rods (509) pass through the plurality of fixed openings respectively, and one end of the plurality of connecting rods (509) is fixedly connected to a fixed clamping plate (510), and the outer walls of one side of the plurality of fixed blocks (508) are fixedly connected to guide rods (507), and the plurality of guide rods (507) are respectively located inside the plurality of arc-shaped openings (503).

10. A laser welding method for processing a two-stage steel pipe, using the laser welding device for processing a two-stage steel pipe as described in claim 9, characterized in that: The steps include: Step 1: The two end steel pipes to be welded are respectively arranged inside two fixing seats (505), and the steel pipe fixing module (5) is started to fix the two steel pipes; Step 2: After fixing, the adjustment plate seat (2) is rotated according to actual needs to perform angled welding of the two-end steel pipes, and the angle of the welding adjustment module (3) is adjusted at the same time. After adjustment, the locking dust removal module (7) is started to lock the position of the adjustment plate seat (2) through the locking dust removal module (7); Step 3: After the angle is locked, the stepper motor (12) and the screw rod (13) are started, so that the movable base (14) drives the two sections of steel pipe to move until the welding position contacts, and then the welding adjustment module (3) is started to perform the welding operation; Step 4: During welding, the dust removal module (7) is locked and started, and the control valve (712) on the connecting pipe (713) is closed, and the control valve (712) on the connecting pipe (714) is opened to process the welding fumes until the welding is completed.

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