Cantilever type laser cutting and welding all-in-one machine

Abstract

The invention relates to the field of laser processing, in particular to a cantilever type laser cutting and welding all-in-one machine which comprises an operation table and a laser cutting and welding machine body, two supports are jointly and fixedly connected with a cantilever, the two supporting frames are jointly and fixedly connected with a brush plate, and a grinding assembly is fixedly installed at the bottom end of a reflection cover. A dust removal and heat dissipation assembly is fixedly installed on the side wall of the laser cutting and welding machine body. According to the laser polishing device, by arranging the polishing assembly, when laser is reflected, a reflecting cover is used for refracting the reflected laser, the refracted laser is reflected to the side wall of a heat collecting sleeve, a cavity in the heat collecting sleeve is heated and expanded, a limiting plate is pushed to leave an inserting groove, and limiting on a sliding plate is relieved; and a second grinding plate below the sliding plate is pushed to move downwards to the surface of the workpiece, tightly abuts against the workpiece and grinds the surface of the workpiece in the process that the laser cutting and welding machine body moves on the cutting and welding track, so that the surface of the workpiece becomes rough, laser reflection is reduced, and the safety of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser processing, in particular to a cantilever laser cutting and welding integrated machine. Background Art

[0002] The integrated laser cutting and welding machine has the functions of both laser cutting and welding. The laser head and the material move relative to each other along a certain trajectory, and the focusing mirror in the laser head is used to focus the laser beam on the surface of the material to melt it, thereby completing the cutting or welding of the specified shape on the surface of the material. Laser cutting or welding has the characteristics of good incision quality, narrow incision width, high welding precision, fast cutting, narrow welding seam, safety and cleanliness.

[0003] For example, a cantilever fiber laser cutting and welding machine proposed in announcement number CN205414717U includes a horizontal base, a vertical base, a cantilever beam, a processing head mounting plate, a cutting head, a welding head, a processing platform, a laser and a transmission optical fiber, wherein the vertical base is fixed on the horizontal base; the side wall of the vertical base is fixed with left and right direction slide rails, and the cantilever beam is fixed on the slider of the left and right direction slide rails; the side wall of the cantilever beam is fixed with front and rear direction slide rails, and the processing head mounting plate is fixed on the slider of the front and rear direction slide rails; the processing head mounting plate is installed with a first vertical direction slide rail and a second vertical direction slide rail.

[0004] At present, during the laser cutting and welding process, if the welding material has reflective properties, the laser beam of the laser welding machine will be reflected. On the one hand, it is not conducive to the welding process, and on the other hand, the reflected laser will cause damage to the surrounding personnel or equipment; in addition, a large amount of welding slag will be generated during the cutting and welding process. If these welding slags are not cleaned up in time, they will condense on the surface of the workpiece and still need to be cleaned up by the staff, which is time-consuming and laborious; and a large amount of heat will be generated during the laser cutting and welding process. Excessive concentration of heat will seriously affect the service life of the laser cutting and welding machine body. At the same time, during the cutting and welding process, some particulate impurities are generated on the surface of the workpiece. If they are not cleaned up in time, the cutting and welding quality of the workpiece will be affected.

[0005] In view of the above problems, a cantilever laser cutting and welding machine is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a cantilever laser cutting and welding machine, which is used to work, thereby solving the problem that if the welding material has a reflective property, the laser beam of the laser welding machine will be reflected, affecting the cutting and welding quality; in addition, a large amount of welding slag will be generated during the cutting and welding process; and a large amount of heat will be generated during the cutting and welding process, and excessive heat concentration will affect its service life.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cantilever laser cutting and welding integrated machine, comprising an operating table and a laser cutting and welding machine body, the top of the operating table is symmetrically fixedly connected with a bracket, two of the brackets are commonly fixedly connected with a cantilever, the laser cutting and welding machine body is slidably connected to the side wall of the cantilever, the bottom end of the laser cutting and welding machine body is fixedly connected with a laser head, the bottom end of the laser cutting and welding machine body is symmetrically fixedly connected with a first connecting rod, two of the first connecting rods are commonly fixedly connected with a reflective cover, a grinding assembly is fixedly installed at the bottom end of the laser cutting and welding machine body, the grinding assembly is located inside the reflective cover, a steering assembly is fixedly installed at the bottom end of the grinding assembly, a hinged plate is symmetrically fixedly connected to the bottom end of the reflective cover, the bottom ends of the two hinged plates are symmetrically fixedly connected with a support frame, the two support frames are commonly fixedly connected with a brush plate, a grinding assembly is fixedly installed at the bottom end of the reflective cover, and a dust removal and heat dissipation assembly is fixedly installed on the side wall of the laser cutting and welding machine body; The grinding assembly includes two second connecting rods, each of which is fixedly connected to the bottom end of the laser cutting and welding machine body, and the two second connecting rods are commonly fixedly connected to a heat collecting sleeve, and a heat insulating layer is fixedly connected inside the heat collecting sleeve, and a cavity is opened inside the heat collecting sleeve, and a first piston plate is slidably connected to the inner wall of the cavity, and the side wall of the first piston plate is symmetrically fixedly connected to a first connecting rod, and one end of each of the first connecting rods passes through the side wall of the heat collecting sleeve, and one end of the two first connecting rods that pass through the heat collecting sleeve is commonly fixedly connected to a first connecting plate, and the side wall of the first connecting plate is fixedly connected to a limiting plate, and the top of the heat collecting sleeve is symmetrically fixedly connected to a conduit, and a control valve is installed inside, and the side wall of the laser cutting and welding machine body is fixedly connected to a fixing plate; The side wall of the heat collecting sleeve is fixedly connected to a first mounting plate, the first mounting plate is a U-shaped structure, the inner side wall of the first mounting plate is symmetrically fixedly connected to a first spring, each of the first springs is fixedly connected to the side wall of the first connecting plate, the top of the first mounting plate is symmetrically fixedly connected to a first positioning plate, the two first positioning plates are jointly embedded with a slide plate in a sliding connection, the side wall of the slide plate is provided with a slot, the limit plate penetrates and is slidably connected to the inside of the slot, the top of the slide plate is symmetrically fixedly connected to a second spring, each of the second springs is fixedly connected to the bottom end of the fixed plate, the bottom end of the fixed plate is fixedly connected to an electromagnet, and the top of the slide plate is fixedly connected to a permanent magnet; The steering assembly includes two fourth mounting plates, each of which is fixedly connected to the bottom end of the slide plate, and the two fourth mounting plates are commonly fixedly connected to a fourth positioning plate, a first rotating rod is rotatably connected to a side wall of one of the fourth mounting plates, one end of the first rotating rod is fixedly connected to a first bevel gear, the bottom end of the slide plate is rotatably connected to a second rotating rod, and the second rotating rod and the bottom end of the slide plate are fixedly connected to a torsion spring; One end of the second rotating rod passes through the fourth positioning plate and is fixedly connected to a connecting block, the bottom end of the connecting block is fixedly connected to a second grinding plate, the other end of the first rotating rod is fixedly connected to an incomplete gear, the side wall of the second rotating rod is fixedly connected to a second bevel gear, the first bevel gear and the second bevel gear are meshingly connected, and the side wall of the fourth positioning plate is symmetrically rotatably connected to the third rotating rod.

[0008] Each of the side walls of the third rotating rod is fixedly connected to a second rubber wheel, one of the side walls of the third rotating rod is fixedly connected to a third gear, and the third gear is meshedly connected with the teeth of the incomplete gear.

[0009] Furthermore, the grinding assembly includes a second mounting plate, the second mounting plate is fixedly connected to the bottom end of the reflector, the side wall of the second mounting plate is symmetrically fixedly connected to the second positioning plate, each side wall of the second positioning plate is penetrated by a first roller for rotation, one end of the first roller is fixedly connected to the first rubber wheel, and the other end is fixedly connected to the first gear, the two second mounting plates are jointly rotatably connected to a reciprocating screw, the side wall of the reciprocating screw is threadedly connected to a sleeve, the sleeve is in contact with the top end of the second mounting plate, the side wall of the sleeve is symmetrically fixedly connected to a scraper, and the bottom end of the sleeve is fixedly connected to the first grinding plate.

[0010] Furthermore, the dust removal and heat dissipation assembly includes a third mounting plate, which is fixedly connected to the side wall of the laser cutting and welding machine body, a condensing box, a sealing box and a filter box are fixedly connected to the top of the third mounting plate, a semiconductor refrigerator is fixedly connected through the top of the condensing box, a water inlet pipe is fixedly connected between the bottom side wall of the condensing box and the top side wall of the sealing box, a one-way water inlet valve is installed inside the water inlet pipe, a condensing pipe is fixedly connected to the top side wall of the sealing box, a one-way water outlet valve is installed inside the condensing pipe, one end of the condensing pipe is fixedly connected to the top side wall of the condensing box after being wrapped along the outside of the reflective cover, the side wall of the reflective cover is fixedly connected to a hollow circular tube, a plurality of air diffusion holes are opened on the top of the hollow circular tube, a first suction nozzle is fixedly connected to the side wall of the slide plate, and a second suction nozzle is fixedly connected to the two side walls of the second positioning plates.

[0011] Furthermore, the first suction nozzle side wall is fixedly connected with a first connecting pipe, the second suction nozzle side wall is fixedly connected with a second connecting pipe, the first connecting pipe and the second connecting pipe are jointly fixedly connected with a second air inlet pipe, the second air inlet pipe is fixedly connected to a side wall of one side of the filter box, a one-way air inlet valve is installed inside the second air inlet pipe, a filter is fixedly connected inside the filter box, the first air inlet pipe is fixedly connected between the other side wall of the filter box and the bottom side wall of the sealing box, the bottom side wall of the sealing box is fixedly connected with an air outlet pipe, one end of the air outlet pipe is fixedly connected to a hollow circular tube, and a one-way air outlet valve is installed inside the air outlet pipe.

[0012] Furthermore, the bottom end of the third mounting plate is fixedly connected to a third positioning plate, and the side wall of the third positioning plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the side wall of the third positioning plate and is fixedly connected to the side wall with a crank, the side wall of the crank is rotatably connected to a second connecting rod, one end of the second connecting rod is rotatably connected to a pull rod, one end of the pull rod passes through the bottom wall of the third mounting plate and is sealed and slidably connected to the bottom wall of the sealing box, one end of the pull rod is fixedly connected to a second piston plate, and the second piston plate is sealed and slidably connected to the inner wall of the sealing box.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By setting up a grinding component, when the laser is reflected, the reflected laser is refracted by the reflective cover, and the refracted laser is reflected to the side wall of the heat collecting sleeve, so that the cavity in the heat collecting sleeve heats up and expands, pushing the limit plate to leave the slot, releasing the limit on the slide plate, and under the action of the second spring, the second grinding plate under the slide plate is pushed down to the surface of the workpiece, tightly against the workpiece, and grinds the surface of the workpiece as the main body of the laser cutting and welding machine moves along the cutting and welding track, making the surface of the workpiece rough, reducing laser reflection, and improving the safety of the device; by setting up a steering component, when the grinding component moves along the cutting and welding track, the second rubber wheel is used to connect with the surface of the workpiece to The rotation drives the third gear to rotate, and the incomplete gear to rotate, and at the same time drives the first bevel gear to rotate. At this time, the torsion spring is subjected to force, and the meshing action between the bevel gears is used to drive the second bevel gear and the second grinding plate to rotate. When the incomplete gear is not meshed with the third gear, the torsion spring drives the second grinding plate to reset and rotate, and drives the incomplete gear to reset and rotate. At this time, the incomplete gear meshes with the third gear again, and the cycle repeats, causing the second grinding plate to continuously rotate and swing, so that the polished trajectory is curved, so that the laser is refracted at multiple angles along the curved grinding trajectory to avoid always being in one position and causing damage to the reflector.

[0014] By setting a grinding component, the first rubber wheel is used to rub against the surface of the workpiece and rotate, so that the first gear drives the second gear to rotate, the reciprocating screw is rotated, and the sleeve is driven to reciprocate left and right, and the two scrapers on the side wall of the sleeve are used to continuously remove the welding slag generated in the cutting and welding process, and the first grinding plate is used to grind the surface of the workpiece to improve the quality of the workpiece cutting and welding; by setting a dust removal and heat dissipation component, the motor is used to drive the crank to rotate, and the second connecting rod is cooperated to make the pull rod reciprocate up and down, and the pressure difference is used to extract the condensate from the top of the second piston plate and press it into the inside of the condenser tube, so as to cool the reflector cover and improve the service life of the reflector cover, and the welding slag generated by the cutting and welding is sucked into the filter box through the first suction nozzle and the second suction nozzle for welding slag air separation, the separated air enters the bottom of the second piston plate along the first air inlet pipe, is pressed into the air outlet pipe, and then enters the inside of the hollow circular tube, and is blown out along a plurality of air diffusion holes, and the cold air around the condenser tube is blown to the surrounding area of ​​the laser cutting and welding machine body for cooling, thereby reducing the damage to the laser cutting and welding machine body and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 2 This is a schematic diagram of the main body appearance of the present invention; Figure 3 It is a schematic diagram of the main body appearance in the side view direction of the present invention; Figure 4 It is a structural schematic diagram of the main body of the laser cutting and welding machine in the present invention; Figure 5 It is a schematic diagram of the structure of the polishing assembly and the reflector in the present invention; Figure 6 is a cross-sectional schematic diagram of the grinding assembly of the present invention; Figure 7 It is a structural schematic diagram of the slide plate in the present invention; Figure 8 It is a schematic diagram of the structure of the grinding assembly in the present invention; Fig. 9 It is a structural schematic diagram of the dust removal and heat dissipation component in the present invention; Fig.10 This is a schematic diagram of the structure of the dust removal and heat dissipation assembly in the present invention as viewed from the rear; Fig.11 A cross-sectional view of the dust removal and heat dissipation assembly of the present invention in the rear direction; Fig.12 It is a cross-sectional view of the dust removal and heat dissipation component in the present invention in the main viewing direction; Fig.13 It is a structural schematic diagram of the slide plate and the steering assembly in the present invention; Fig.14 for Fig.13A partial enlarged schematic diagram of part A.

[0016] In the figure: 1, operating table; 2, bracket; 21, cantilever; 3, laser cutting and welding machine body; 31, laser head; 4, first connecting rod; 41, reflector; 42, hinged plate; 43, support frame; 44, brush plate; 5, grinding assembly; 51, second connecting rod; 52, heat collecting sleeve; 53, cavity; 54, first piston plate; 55, first connecting rod; 56, first connecting plate; 57, first spring; 58, first mounting plate; 59, first positioning plate; 510, slide plate; 511, fixing plate; 512, second spring; 513, permanent magnet; 514, electromagnet; 515, limit plate; 516, slot; 517, heater; 6, grinding assembly; 61, second mounting plate; 62, second positioning plate; 63, first roller; 64, first rubber wheel; 65, first gear; 66, reciprocating screw; 67, second gear; 68, sleeve; 69, scraper; 610, first grinding plate; 7, dust removal and heat dissipation assembly; 71, third mounting plate; 72, condensation box; 73, semiconductor manufacturing cooler; 74, sealing box; 75, filter box; 76, water inlet pipe; 77, one-way water inlet valve; 78, condenser; 79, one-way water outlet valve; 710, third positioning plate; 711, motor; 712, rotating shaft; 713, crank; 714, second connecting rod; 715, pull rod; 716, second piston plate; 717, filter; 718, first air inlet pipe; 719, air outlet pipe; 720, one-way air outlet valve; 721, hollow circular tube; 722, air diffusion hole; 723, first connecting pipe ;724, first suction nozzle;725, second suction nozzle;726, second connecting pipe;727, second air inlet pipe;728, one-way air inlet valve;8, steering assembly;81, fourth mounting plate;82, first rotating rod;83, incomplete gear;84, first bevel gear;85, second rotating rod;86, torsion spring;87, second bevel gear;88, third rotating rod;89, second rubber wheel;810, fourth positioning plate;811, third gear;812, connecting block;813, second grinding plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In order to solve the technical problem that in the laser cutting and welding process, if the welding material has reflective properties, the laser beam of the laser welding machine will be reflected, which is not conducive to the welding process on the one hand, and the reflected laser will cause damage to the surrounding personnel or equipment on the other hand. Figure 1 - Figure 7 As shown, the following preferred technical solutions are provided: A cantilever laser cutting and welding integrated machine comprises an operating table 1 and a laser cutting and welding machine body 3. A bracket 2 is symmetrically fixedly connected to the top of the operating table 1. A cantilever 21 is fixedly connected to the two brackets 2. The laser cutting and welding machine body 3 is slidably connected to the side wall of the cantilever 21. A laser head 31 is fixedly connected to the bottom end of the laser cutting and welding machine body 3. The laser cutting and welding machine body 3 can be moved and welded through the cantilever 21. A first connecting rod 4 is symmetrically fixedly connected to the bottom end of the laser cutting and welding machine body 3. The two first connecting rods 4 are fixedly connected to a reflecting cover 41. By setting the reflecting cover 41, the safety of the device can be improved to avoid laser reflection when cutting and welding reflective steel, which endangers the staff. A grinding component 5 is fixedly installed at the bottom end of the laser cutting and welding machine body 3. By setting the grinding component 5, when the laser is reflected, the reflected laser is refracted by the reflecting cover 41, and the refracted laser is reflected to the side wall of the heat collecting sleeve 52, so that the cavity 53 in the heat collecting sleeve 52 heats up and expands, pushing the limit plate 515 to leave the slot 516, and releasing the sliding The limit of the plate 510, under the action of the second spring 512, pushes the second grinding plate 813 under the slide plate 510 to move down to the surface of the workpiece, tightly against the workpiece, and grinds the surface of the workpiece as the laser cutting and welding machine body 3 moves along the cutting and welding track, so that the surface of the workpiece becomes rough, reduces laser reflection, and improves the safety of the device; if the temperature of the laser refraction is not enough, the gas inside the cavity 53 expands, pushing the first piston plate 54 and the limiting plate 515 to move, at this time, by starting the heater 517, the heater 517 is used to heat the gas inside the cavity 513 to expand it, thereby pushing the first piston plate 54 and the limiting plate 515 to move, the heater 517 is only used for auxiliary heating, so that the gas inside the cavity 53 expands, compared with directly using the heater 517 for heating, this scheme has a certain degree of energy saving effect, and the main purpose of this scheme is to utilize the high temperature generated during laser processing, and when the laser is reflected, the reflected laser is utilized.

[0019] The grinding assembly 5 is located inside the reflector 41, and a steering assembly 8 is fixedly installed at the bottom end of the grinding assembly 5. Since the side wall of the reflector 41 receives the refracted laser for a long time, after long-term use, the contact between the reflector 41 and the refracted laser will be damaged, which is not conducive to continuous use. By setting the steering assembly 8, in the process of the grinding assembly 5 moving along the cutting and welding track, the second rubber wheel 89 is used to contact the surface of the workpiece and rotate to drive the third gear 811 to rotate, and the incomplete gear 83 is rotated, and the first bevel gear 84 is driven to rotate at the same time. At this time, the torsion spring 86 is stressed, and the meshing action between the bevel gears is used to drive the second bevel gear 87 and the second grinding plate 813 to rotate. When the incomplete gear 83 is not engaged with the third gear 811, the torsion spring 86 drives the second grinding plate 813 to reset and rotate, and drives the incomplete gear 83 to reset and rotate. At this time, the incomplete gear 83 is meshed with the third gear 811 again, and the cycle repeats, so that the second grinding plate 813 is continuously rotated and swung, so that the polished The track is curved, so that the laser is refracted at multiple angles along the curved grinding track to avoid being in one position all the time, causing damage to the reflector 41. The bottom end of the reflector 41 is symmetrically fixedly connected with a hinge plate 42, and the bottom ends of the two hinge plates 42 are symmetrically fixedly connected with a support frame 43. The two support frames 43 are jointly fixedly connected with a brush plate 44. By setting the brush plate 44 and moving the brush plate 44 along the cutting and welding track, before cutting and welding, the brush plate 44 is used to clean the dust on the surface of the workpiece, thereby reducing the influence of dust on cutting and welding and improving the quality of cutting and welding. A grinding assembly 6 is fixedly installed at the bottom end of the reflector 41. By setting the grinding assembly 6, the first rubber wheel 64 is used to rub against the surface of the workpiece and rotate, so that the first gear 65 drives the second gear 67 to rotate, so that the reciprocating screw 66 rotates, and drives the sliding sleeve 68 to reciprocate left and right, and the two scrapers 69 on the side wall of the sliding sleeve 68 are used to continuously remove the welding slag generated during the cutting and welding process, and the first grinding plate 610 is used to grind the surface of the workpiece to improve the quality of workpiece cutting and welding.

[0020] A dust removal and heat dissipation assembly 7 is fixedly installed on the side wall of the laser cutting and welding machine body 3; by setting the dust removal and heat dissipation assembly 7, the motor 711 is used to drive the crank 713 to rotate, and the second connecting rod 714 is cooperated to make the pull rod 715 reciprocate up and down, and the pressure difference is used to extract the condensate from above the second piston plate 716 and press it into the condensation pipe 78, so as to cool the reflector 41 and improve the service life of the reflector 41, and the welding slag generated by the cutting and welding is sucked into the filter box 75 through the first suction nozzle 724 and the second suction nozzle 725 for welding slag air separation, and the separated air enters the lower part of the second piston plate 716 along the first air inlet pipe 718, and is pressed into the air outlet pipe 719, and then enters the hollow circular tube 721, and is blown out along a plurality of air diffusion holes 722, so as to blow the cold air around the condensation pipe 78 to the laser cutting and welding machine body 3 for cooling, thereby reducing the damage to the laser cutting and welding machine body 2 and improving the service life.

[0021] The grinding assembly 5 includes two second connecting rods 51, each of which is fixedly connected to the bottom end of the laser cutting and welding machine body 3. The two second connecting rods 51 are commonly fixedly connected to a heat collecting sleeve 52, and a heat insulating layer is fixedly connected inside the heat collecting sleeve 52. A cavity 53 is opened inside the heat collecting sleeve 52, and a first piston plate 54 is slidably connected to the inner wall of the cavity 53. The side wall of the first piston plate 54 is symmetrically fixedly connected to a first connecting rod 55, and one end of each first connecting rod 55 passes through the side wall of the heat collecting sleeve 52. One end of the two first connecting rods 55 that pass through the heat collecting sleeve 52 is commonly fixedly connected to a first connecting plate 56, and the side wall of the first connecting plate 56 is fixedly connected to a limiting plate 515. The top of the heat collecting sleeve 52 is symmetrically fixedly connected to a conduit, and a control valve is installed inside. The side wall of the laser cutting and welding machine body 3 is fixedly connected to a fixed plate 511.

[0022] The side wall of the heat collecting sleeve 52 is fixedly connected with a first mounting plate 58, and the first mounting plate 58 is a U-shaped structure. The inner wall of the first mounting plate 58 is symmetrically fixedly connected with a first spring 57, and each first spring 57 is fixedly connected to the side wall of the first connecting plate 56. The top of the first mounting plate 58 is symmetrically fixedly connected with a first positioning plate 59, and the two first positioning plates 59 are jointly embedded with a slide plate 510 for sliding connection. A slot 516 is provided on the side wall of the slide plate 510, and a limit plate 515 penetrates and is slidably connected to the inside of the slot 516. The top of the slide plate 510 is symmetrically fixedly connected with a second spring 512, and each second spring 512 is fixedly connected to the bottom end of the fixed plate 511. The bottom end of the fixed plate 511 is fixedly connected with an electromagnet 514, and the top of the slide plate 510 is fixedly connected with a permanent magnet 513.

[0023] In this solution: when the laser is reflected, the reflector 41 is used to refract the reflected laser, and the refracted laser is reflected to the side wall of the heat collecting sleeve 52, so that the cavity 53 in the heat collecting sleeve 52 heats up and expands, pushing the limit plate 515 to leave the slot 516, releasing the limit on the slide plate 510, and under the action of the second spring 512, the second grinding plate 813 under the slide plate 510 is pushed down to the surface of the workpiece, tightly against the workpiece, and during the movement of the laser cutting and welding machine body 3 on the cutting and welding track, the surface of the workpiece is ground to make the surface of the workpiece rough, reduce laser reflection, and improve the safety of the device; wherein if the temperature of the laser refraction It is not enough to make the gas inside the cavity 53 expand, pushing the first piston plate 54 and the limit plate 515 to move. At this time, the heater 517 is started to heat the gas inside the cavity 513 to make it expand, thereby pushing the first piston plate 54 and the limit plate 515 to move. The heater 517 is only used for auxiliary heating to make the gas inside the cavity 53 expand. Compared with directly using the heater 517 for heating, this solution has energy-saving effect to a certain extent. The main purpose of this solution is to utilize the high temperature generated during laser processing and the reflected laser when the laser is reflected.

[0024] When the slide plate 510 needs to be folded, the electromagnet 514 is energized to generate magnetic poles at both ends of the electromagnet 514, wherein the magnetic poles at the bottom end of the electromagnet 514 attract the magnetic poles at the top end of the permanent magnet 513, thereby attracting the slide plate 510 and causing the slide plate 510 to move upward. Under the elastic action of the first spring 57, the limiting plate 515 enters the slot 516 to limit the slide plate 510, wherein the magnetic attraction between the electromagnet 514 and the permanent magnet 513 is greater than the elastic force of the second spring 512.

[0025] In order to solve the technical problem that a large amount of welding slag will be generated during the cutting and welding process, if these welding slags are not cleaned in time, they will condense on the surface of the workpiece and still need to be cleaned by the staff, which is time-consuming and laborious. Figure 1 , Figure 5 and Figure 8 As shown, the following preferred technical solutions are provided: The grinding assembly 6 includes a second mounting plate 61, which is fixedly connected to the bottom end of the reflector 41. The side wall of the second mounting plate 61 is symmetrically fixedly connected with a second positioning plate 62. Each side wall of the second positioning plate 62 is penetrated by a first roller 63 for rotation. One end of the first roller 63 is fixedly connected with a first rubber wheel 64, and the other end is fixedly connected with a first gear 65. The two second mounting plates 61 are jointly rotatably connected with a reciprocating screw 66. The side wall of the reciprocating screw 66 is threadedly connected with a sleeve 68. The sleeve 68 is in contact with the top end of the second mounting plate 61. The side wall of the sleeve 68 is symmetrically fixedly connected with a scraper 69. The bottom end of the sleeve 68 is fixedly connected with a first grinding plate 610.

[0026] In this solution: the first rubber wheel 64 is used to rub against the surface of the workpiece to rotate, driving the first gear 65 and the second gear 67 to rotate, so that the reciprocating screw 66 rotates, thereby causing the sleeve 68 to reciprocate left and right, and the two scrapers 69 on the side walls of the sleeve 68 are used to continuously remove the welding slag generated during the cutting and welding process, and the first grinding plate 610 is used to grind the surface of the workpiece to improve the quality of the workpiece cutting and welding; wherein the width of the scraper 69 is greater than the stroke of the scraper 69 during the reciprocating movement, so that the scraper 69 will not absolutely leave the cutting and welding part unground.

[0027] In order to solve the problem that a lot of heat will be generated during the laser cutting and welding process, excessive heat concentration will seriously affect the service life of the laser cutting and welding machine body. In addition, during the cutting and welding process, some particulate impurities will be generated on the surface of the workpiece. If they are not cleaned in time, it will affect the cutting and welding quality of the workpiece. For example Fig. 9 - Fig.12 As shown, the following preferred technical solutions are provided: The dust removal and heat dissipation assembly 7 includes a third mounting plate 71, which is fixedly connected to the side wall of the laser cutting and welding machine body 3. A condensation box 72, a sealing box 74 and a filter box 75 are fixedly connected to the top of the third mounting plate 71. A semiconductor refrigerator 73 is fixedly connected to the top of the condensation box 72. A water inlet pipe 76 is fixedly connected between the bottom side wall of the condensation box 72 and the top side wall of the sealing box 74. A one-way water inlet valve 77 is installed inside the water inlet pipe 76. A condensation pipe 78 is fixedly connected to the top side wall of the sealing box 74. A one-way water outlet valve 79 is installed inside the condensation pipe 78. One end of the condensation pipe 78 is fixedly connected to the top side wall of the condensation box 72 after being wrapped around the outside of the reflector 41. A hollow circular tube 721 is fixedly connected to the side wall of the reflector 41. A plurality of air diffusion holes 722 are provided at the top of the hollow circular tube 721. A first suction nozzle 724 is fixedly connected to the side wall of the slide plate 510. A second suction nozzle 725 is fixedly connected to the side walls of the two second positioning plates 62.

[0028] The first suction nozzle 724 is fixedly connected to the side wall with a first connecting pipe 723, the second suction nozzle 725 is fixedly connected to the side wall with a second connecting pipe 726, the first connecting pipe 723 and the second connecting pipe 726 are jointly fixedly connected to a second air inlet pipe 727, the second air inlet pipe 727 is fixedly connected to a side wall of one side of the filter box 75, a one-way air inlet valve 728 is installed inside the second air inlet pipe 727, a filter screen 717 is fixedly connected inside the filter box 75, the other side wall of the filter box 75 and the bottom side wall of the sealing box 74 are fixedly connected with the first air inlet pipe 718, the bottom side wall of the sealing box 74 is fixedly connected to an air outlet pipe 719, one end of the air outlet pipe 719 is fixedly connected to the hollow circular tube 721, and a one-way air outlet valve 720 is installed inside the air outlet pipe 719.

[0029] The bottom end of the third mounting plate 71 is fixedly connected to the third positioning plate 710, and the side wall of the third positioning plate 710 is fixedly connected to the motor 711, and the output end of the motor 711 is fixedly connected to the rotating shaft 712, one end of the rotating shaft 712 passes through the side wall of the third positioning plate 710 and is fixedly connected to the side wall with a crank 713, the side wall of the crank 713 is rotatably connected to the second connecting rod 714, one end of the second connecting rod 714 is rotatably connected to the pull rod 715, one end of the pull rod 715 passes through the bottom wall of the third mounting plate 71 and is sealed and slidably connected to the bottom wall of the sealing box 74, one end of the pull rod 715 is fixedly connected to the second piston plate 716, and the second piston plate 716 is sealed and slidably connected to the inner wall of the sealing box 74.

[0030] In this solution, the motor 711 is used to drive the crank 713 to rotate, and the second connecting rod 714 is used to make the pull rod 715 reciprocate up and down. The pressure difference is used to extract the condensate from the top of the second piston plate 716 and press it into the condensation tube 78, so as to cool the reflector 41 and improve the service life of the reflector 41. The welding slag generated by the cutting and welding is sucked into the filter box 75 through the first suction nozzle 724 and the second suction nozzle 725 to separate the welding slag from the air. The separated air enters the bottom of the second piston plate 716 along the first air inlet pipe 718, is pressed into the air outlet pipe 719, and then enters the hollow circular tube 721, and is discharged along the multiple air diffusion holes 724. 2 blows out, and blows the cold air around the condenser pipe 78 to the laser cutting and welding machine body 3 to cool it down, thereby reducing the damage to the laser cutting and welding machine body 2 and improving its service life; wherein the one-way water inlet valve 77 and the one-way water outlet valve 79 allow the condensate to only enter the upper end of the sealing box 74 along the water inlet pipe 76 and be discharged along the condenser pipe 78, and the one-way air inlet valve 728 and the one-way air outlet valve 720 allow the gas and welding slag to only enter along the first connecting pipe 723 and the second connecting pipe 726, and enter the inside of the filter box 75 through the second air inlet pipe 727, and then enter the lower part of the sealing box 74 through the first air inlet pipe 718, and enter the inside of the hollow circular pipe 721 through the air outlet pipe 719.

[0031] In order to solve the technical problem that the side wall of the reflector 41 receives the refracted laser for a long time, after long-term use, the contact between the reflector 41 and the refracted laser will be damaged, which is not conducive to continuous use, such as Fig.13 - Fig.14 As shown, the following preferred technical solutions are provided: The steering assembly 8 includes two fourth mounting plates 81, each of which is fixedly connected to the bottom end of the slide plate 510, and the two fourth mounting plates 81 are commonly fixedly connected to a fourth positioning plate 810, wherein a first rotating rod 82 is rotatably connected to the side wall of one of the fourth mounting plates 81, and one end of the first rotating rod 82 is fixedly connected to a first bevel gear 84, and a second rotating rod 85 is rotatably connected to the bottom end of the slide plate 510, and a torsion spring 86 is fixedly connected to the second rotating rod 85 and the bottom end of the slide plate 510.

[0032] One end of the second rotating rod 85 passes through the fourth positioning plate 810 and is fixedly connected to a connecting block 812, the bottom end of the connecting block 812 is fixedly connected to a second grinding plate 813, the other end of the first rotating rod 82 is fixedly connected to an incomplete gear 83, the side wall of the second rotating rod 85 is fixedly connected to a second bevel gear 87, the first bevel gear 84 and the second bevel gear 87 are meshingly connected, and the side wall of the fourth positioning plate 810 is symmetrically rotatably connected to a third rotating rod 88.

[0033] A second rubber wheel 89 is fixedly connected to the side wall of each third rotating rod 88 , and a third gear 811 is fixedly connected to the side wall of one of the third rotating rods 88 . The third gear 811 is meshed with the teeth of the incomplete gear 83 .

[0034] In this solution: in the process of the grinding assembly 5 moving along the cutting and welding track, the second rubber wheel 89 is used to contact the surface of the workpiece to rotate and drive the third gear 811 to rotate, and the incomplete gear 83 is rotated, and the first bevel gear 84 is driven to rotate at the same time. At this time, the torsion spring 86 is subjected to force, and the meshing action between the bevel gears is used to drive the second bevel gear 87 and the second grinding plate 813 to rotate. When the incomplete gear 83 is not engaged with the third gear 811, under the action of the torsion spring 86, the second grinding plate 813 is driven to reset and rotate, and the incomplete gear 83 is driven to reset and rotate. At this time, the incomplete gear 83 is meshed with the third gear 811 again, and the cycle repeats, so that the second grinding plate 813 is continuously rotated and swung, so that the polished track is curved, so that the laser is refracted at multiple angles along the curved grinding track to avoid being in one position all the time, causing damage to the reflector.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cantilever laser cutting and welding machine, comprising an operating table (1) and a laser cutting and welding machine body (3), characterized in that: The top of the operating table (1) is symmetrically fixedly connected to a bracket (2), two of the brackets (2) are commonly fixedly connected to a cantilever (21), the laser cutting and welding machine body (3) is slidably connected to the side wall of the cantilever (21), the bottom of the laser cutting and welding machine body (3) is fixedly connected to a laser head (31), the bottom of the laser cutting and welding machine body (3) is symmetrically fixedly connected to a first connecting rod (4), the two first connecting rods (4) are commonly fixedly connected to a reflective cover (41), and the bottom of the laser cutting and welding machine body (3) is fixedly installed with a grinding assembly (5 ), the grinding component (5) is located inside the reflective cover (41), a steering component (8) is fixedly installed at the bottom end of the grinding component (5), a hinge plate (42) is symmetrically fixedly connected to the bottom end of the reflective cover (41), a support frame (43) is symmetrically fixedly connected to the bottom ends of the two hinge plates (42), a brush plate (44) is fixedly connected to the two support frames (43), a grinding component (6) is fixedly installed at the bottom end of the reflective cover (41), and a dust removal and heat dissipation component (7) is fixedly installed on the side wall of the laser cutting and welding machine body (3); The grinding assembly (5) comprises two second connecting rods (51), each of which is fixedly connected to the bottom end of the laser cutting and welding machine body (3), and the two second connecting rods (51) are commonly fixedly connected to a heat collecting sleeve (52), and a heat insulating layer is fixedly connected inside the heat collecting sleeve (52), and a cavity (53) is opened inside the heat collecting sleeve (52), and a first piston plate (54) is slidably connected to the inner wall of the cavity (53), and a first connecting rod (55) is symmetrically fixedly connected to the side wall of the first piston plate (54), and one end of each of the first connecting rods (55) passes through the side wall of the heat collecting sleeve (52), and one end of the two first connecting rods (55) that passes through the heat collecting sleeve (52) is commonly fixedly connected to a first connecting plate (56), and the side wall of the first connecting plate (56) is fixedly connected to a limiting plate (515), and the top of the heat collecting sleeve (52) is symmetrically fixedly connected to a conduit, and a control valve is installed inside, and the side wall of the laser cutting and welding machine body (3) is fixedly connected to a fixing plate (511); The side wall of the heat collecting sleeve (52) is fixedly connected to a first mounting plate (58), the first mounting plate (58) is a U-shaped structure, the inner side wall of the first mounting plate (58) is symmetrically fixedly connected to a first spring (57), each of the first springs (57) is fixedly connected to the side wall of the first connecting plate (56), the top of the first mounting plate (58) is symmetrically fixedly connected to a first positioning plate (59), the two first positioning plates (59) are jointly embedded with a slide plate (510) for sliding connection, a slot (516) is provided on the side wall of the slide plate (510), the limit plate (515) penetrates and is slidably connected to the inside of the slot (516), the top of the slide plate (510) is symmetrically fixedly connected to a second spring (512), each of the second springs (512) is fixedly connected to the bottom end of the fixed plate (511), the bottom end of the fixed plate (511) is fixedly connected to an electromagnet (514), and the top of the slide plate (510) is fixedly connected to a permanent magnet (513); The steering assembly (8) comprises two fourth mounting plates (81), each of the fourth mounting plates (81) is fixedly connected to the bottom end of the slide plate (510), the two fourth mounting plates (81) are commonly fixedly connected to a fourth positioning plate (810), a first rotating rod (82) is rotatably connected to a side wall of one of the fourth mounting plates (81), one end of the first rotating rod (82) is fixedly connected to a first bevel gear (84), the bottom end of the slide plate (510) is rotatably connected to a second rotating rod (85), and the second rotating rod (85) and the bottom end of the slide plate (510) are fixedly connected to a torsion spring (86); One end of the second rotating rod (85) passes through the fourth positioning plate (810) and is fixedly connected to a connecting block (812); the bottom end of the connecting block (812) is fixedly connected to a second grinding plate (813); the other end of the first rotating rod (82) is fixedly connected to an incomplete gear (83); the side wall of the second rotating rod (85) is fixedly connected to a second bevel gear (87); the first bevel gear (84) and the second bevel gear (87) are meshingly connected; and the side wall of the fourth positioning plate (810) is symmetrically rotatably connected to a third rotating rod (88); The side wall of each third rotating rod (88) is fixedly connected to a second rubber wheel (89), and one of the side walls of the third rotating rod (88) is fixedly connected to a third gear (811), the third gear (811) being meshedly connected with the teeth of the incomplete gear (83).

2. The cantilever laser cutting and welding machine according to claim 1, characterized in that: The grinding assembly (6) comprises a second mounting plate (61), the second mounting plate (61) being fixedly connected to the bottom end of the reflector (41), the side wall of the second mounting plate (61) being symmetrically fixedly connected to a second positioning plate (62), each side wall of the second positioning plate (62) being penetrated by a first roller (63) being rotatably connected, one end of the first roller (63) being fixedly connected to a first rubber wheel (64), and the other end being fixedly connected to a first gear (65), the two second mounting plates (61) being rotatably connected to a reciprocating screw (66), the side wall of the reciprocating screw (66) being threadedly connected to a sliding sleeve (68), the sliding sleeve (68) being in contact with the top end of the second mounting plate (61), the side wall of the sliding sleeve (68) being symmetrically fixedly connected to a scraper (69), and the bottom end of the sliding sleeve (68) being fixedly connected to a first grinding plate (610).

3. The cantilever laser cutting and welding machine according to claim 2, characterized in that: The dust removal and heat dissipation assembly (7) comprises a third mounting plate (71), the third mounting plate (71) being fixedly connected to the side wall of the laser cutting and welding machine body (3), the top of the third mounting plate (71) being fixedly connected to a condensing box (72), a sealing box (74) and a filtering box (75), the top of the condensing box (72) being penetrated and fixedly connected to a semiconductor refrigerator (73), a water inlet pipe (76) being fixedly connected between the bottom side wall of the condensing box (72) and the top side wall of the sealing box (74), a one-way water inlet valve (77) being installed inside the water inlet pipe (76), and the sealing box (75) being fixedly connected to the filter box (75). 4) A condensation pipe (78) is fixedly connected to the top side wall, a one-way water outlet valve (79) is installed inside the condensation pipe (78), one end of the condensation pipe (78) is wound along the outside of the reflective cover (41) and is fixedly connected to the top side wall of the condensation box (72), the side wall of the reflective cover (41) is fixedly connected to a hollow circular tube (721), a plurality of air diffusion holes (722) are provided at the top of the hollow circular tube (721), the side wall of the slide plate (510) is fixedly connected to a first suction nozzle (724), and the side walls of the two second positioning plates (62) are fixedly connected to a second suction nozzle (725).

4. The cantilever laser cutting and welding machine according to claim 3, characterized in that: The side wall of the first suction nozzle (724) is fixedly connected to a first connecting pipe (723), the side wall of the second suction nozzle (725) is fixedly connected to a second connecting pipe (726), the first connecting pipe (723) and the second connecting pipe (726) are fixedly connected to a second air inlet pipe (727), the second air inlet pipe (727) is fixedly connected to a side wall of one side of the filter box (75), a one-way air inlet valve (728) is installed inside the second air inlet pipe (727), a filter screen (717) is fixedly connected inside the filter box (75), the other side wall of the filter box (75) and the bottom side wall of the sealing box (74) are fixedly connected to the first air inlet pipe (718), the bottom side wall of the sealing box (74) is fixedly connected to an air outlet pipe (719), one end of the air outlet pipe (719) is fixedly connected to a hollow circular tube (721), and a one-way air outlet valve (720) is installed inside the air outlet pipe (719).

5. The cantilever laser cutting and welding machine according to claim 3, characterized in that: The bottom end of the third mounting plate (71) is fixedly connected to a third positioning plate (710), and the side wall of the third positioning plate (710) is fixedly connected to a motor (711); the output end of the motor (711) is fixedly connected to a rotating shaft (712); one end of the rotating shaft (712) passes through the side wall of the third positioning plate (710) and is fixedly connected to the side wall with a crank (713); the side wall of the crank (713) is rotatably connected to a second connecting rod (714); one end of the second connecting rod (714) is rotatably connected to a pull rod (715); one end of the pull rod (715) passes through the bottom wall of the third mounting plate (71) and is sealed and slidably connected to the bottom wall of the sealing box (74); one end of the pull rod (715) is fixedly connected to a second piston plate (716); and the second piston plate (716) is sealed and slidably connected to the inner wall of the sealing box (74).

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