Multifunctional laser cutting machine

Abstract

The invention provides a multifunctional laser cutting machine, relates to the field of laser cutting, and adopts the technical scheme that the multifunctional laser cutting machine comprises a lathe bed and a portal frame, the portal frame is movably arranged on the lathe bed, a machining assembly is arranged on the portal frame, the multifunctional laser cutting machine further comprises a plate supporting table top, the plate supporting table top is arranged in a machining area of the lathe bed, and the plate supporting table top comprises a main supporting frame; the pipe supporting tool and / or the profile supporting tool comprise / comprises an auxiliary supporting frame, the auxiliary supporting frame can be detachably installed in the main supporting frame, and the height of the main supporting frame is lower than that of the auxiliary supporting frame; and the positioning supporting piece is arranged in the machining area, and when the auxiliary supporting frame is located in the main supporting frame, the positioning supporting piece limits and supports the auxiliary supporting frame. According to the invention, plates, pipes and profiles can share the same processing area, so that the occupied space is reduced.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting, and particularly to a multifunctional laser cutting machine. Background Art

[0002] A gantry cutting tooling is a large machine carrying a cutting machine. It can be used for cutting and processing metal plates. Gantry cutting also has the characteristics of high precision and high efficiency, which can greatly improve production efficiency and cutting quality. It is suitable for automatic cutting and blanking of various medium and thin metal plates, used for longitudinal straight cutting to improve cutting efficiency, and has been widely used in the field of machining.

[0003] In the prior art, a Chinese invention patent with the publication number of CN 117697186 A discloses a multifunctional laser cutting machine for plates, pipes and profiles, including a support frame, a slide rail, a cutting frame, an installation table, a rotation adjustment component, a clamping adjustment component, a support ring, a transverse movement mechanism, a lifting mechanism and a cutting head. A reduction gearbox in the rotation adjustment component is arranged on one side of the top of the installation table. This technical solution completes high-precision laser cutting of plates, profiles or pipes by simultaneously arranging a plate support structure, a pipe support structure and a profile support processing within the processing range of the support part, meeting complex actual processing requirements and improving the practicability of the equipment.

[0004] When adopting the above technical solution, with the expansion of the user's processing range, it is necessary to increase the sizes of the plate, profile and pipe support structures to meet production requirements. This greatly increases the size of the support frame of the laser cutting machine, increases the floor area, and increases the difficulty of arranging the large-format multifunctional laser cutting machine in the workshop. Summary of the Invention

[0005] In order to solve the technical problem that the large-format multifunctional laser cutting machine in the above prior art occupies a large floor area, the present invention provides a multifunctional laser cutting machine, which can enable plates, pipes and profiles to share the same processing area and reduce space occupation.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a multifunctional laser cutting machine, including a bed body and a gantry. The gantry is movably arranged on the bed body, and a processing component is arranged on the gantry. It further includes: a plate support tabletop, which is arranged in the processing area of the bed body. The plate support tabletop includes a main support frame; a pipe support tooling and / or a profile support tooling. The pipe support tooling and / or the profile support tooling includes a secondary support frame, and the secondary support frame can be detachably installed in the main support frame. After installation, the height of the main support frame is lower than that of the secondary support frame.

[0007] By detachably installing the auxiliary support frame inside the main support frame, the present invention can, when processing profiles or pipes, install the corresponding auxiliary support frame on the main support frame for use, sharing the processing area inside the bed body. Compared with expanding the processing area of pipes and profiles outside the main support frame, it greatly reduces the space occupation, improves the space utilization rate, and is convenient for greatly expanding the processing range without greatly increasing the space occupation of this cutting machine, facilitating the layout of a large-format multi-functional laser cutting machine in the workshop.

[0008] Furthermore, the plate support tabletop is of a split structure. The plate support tabletop includes a plurality of sub-support tabletops, and the sub-support tabletops are arranged in the processing area. The plurality of sub-support tabletops are arranged along the length direction of the bed body.

[0009] By adopting a split-structured plate support tabletop, the present invention can increase or decrease the corresponding sub-support tabletops according to the length dimension of the workpiece, which is flexible in use and meets the production requirements. At the same time, it can achieve multiple workstations along the length direction of the bed body, meeting the requirements of simultaneous processing of pipes, profiles and loading and unloading of plates, and improving the processing efficiency.

[0010] Furthermore, a first avoidance area, a standing area and a second avoidance area are sequentially arranged on the sub-support tabletop along the width direction of the bed body. The support column of the auxiliary support frame can extend into the interior of the sub-support tabletop from the first avoidance area or the second avoidance area. Knife bars are detachably arranged on the first avoidance area and the second avoidance area, or no knife bars are arranged on the first avoidance area and the second avoidance area, and knife bars are arranged on the standing area.

[0011] By setting the first avoidance area and the second avoidance area, the present invention can make the support column of the auxiliary support frame extend into the sub-support tabletop to support on the positioning support member, which is suitable for processing heavier pipes and profiles, avoiding directly supporting on the plate support tabletop and causing damage to the plate support tabletop, thus affecting the processing accuracy.

[0012] Furthermore, a first support area, a second support area and a third support area are sequentially arranged on the sub-support tabletop along the width direction of the bed body. The first avoidance area, the standing area and the second avoidance area are sequentially arranged in the middle of the second support area along the width direction of the bed body.

[0013] By setting the first support area and the third support area, the present invention can achieve multiple workstations along the width direction of the bed body, meeting the simultaneous processing of longer-sized profiles and pipes as well as the loading and unloading of plates, and improving the processing efficiency of large-sized workpieces.

[0014] Furthermore, the auxiliary support frame of the profile supporting tooling includes a support frame, which is a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame, and the support column group includes a plurality of support columns, and the plurality of support columns are arranged along the length direction of the bed. A support plate group is symmetrically arranged on the support frame, and the support plate group includes a plurality of support plates, and the plurality of support plates are arranged along the length direction of the bed. The support plates can be movably arranged on the support frame along the width direction of the bed.

[0015] The present invention arranges the support plate movably along the width direction of the bed body, so that the support position can be adjusted according to the width of the profile, and the use is flexible.

[0016] Furthermore, the auxiliary support frame of the pipe supporting tooling includes a support frame, which is a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame, and the support column group includes a plurality of support columns. The plurality of support columns are arranged along the length direction of the bed. A laser chuck is arranged at one end of the support frame, and a plurality of support components are arranged on the support frame along the length direction of the bed. The support components can be movably arranged on the support frame along the length direction of the bed.

[0017] The present invention arranges the support assembly movably along the length direction of the bed, so that the support position can be adjusted according to the length of the pipe, and the use is flexible.

[0018] Furthermore, the gantry includes a crossbeam, and movable frames are provided at both ends of the crossbeam. The movable frame is in a triangular structure, and a mounting plate is provided on the movable frame, and a mounting seat is provided on the mounting plate. A movable motor is provided on the mounting seat, and the movable motor is connected to a gear, and the gear is meshed with a rack on the bed. One end of the mounting seat is rotatably connected to the mounting plate, and a vibration-damping bolt is horizontally penetrated at the other end of the mounting seat, and a spring is sleeved between the head of the vibration-damping bolt and the mounting seat. The vibration-damping bolt is threadedly connected to the mounting plate after passing through the mounting seat, and a roller is provided at the bottom of the movable frame, and the roller can roll along the guide rail on the bed.

[0019] The present invention rotates one end of the mounting seat and connects the other end through spring compression. On the one hand, it can ensure that the gear is always engaged with the rack to avoid a large gap caused by installation and manufacturing errors. On the other hand, the spring compression can buffer the vibration generated during the movement of the gantry, ensure the smooth movement of the gantry, and improve the processing accuracy.

[0020] Further, the guide rail is made of I-beam. Oppositely arranged guide wheels are also provided at the bottom of the moving frame. The guide wheels are arranged perpendicular to the roller wheels. The two guide wheels are respectively located on both sides of the web of the guide rail. The guide wheels can roll along the web of the guide rail. A travel detection switch is arranged at the lower part of the moving frame, and a collision avoidance block is arranged on the moving frame.

[0021] The present invention realizes positioning by setting guide wheels, avoids the offset or even derailment of the gantry during movement, and improves the processing accuracy.

[0022] Further, a travel detection switch is arranged at the lower part of the moving frame, and a collision avoidance block is arranged on the moving frame.

[0023] The present invention realizes both soft and hard limits through the cooperation of the collision avoidance block and the travel detection switch, and avoids over-positioning during movement.

[0024] Further, the processing component includes a moving seat and a laser cutting unit. The moving seat is movably arranged on the cross beam along the length direction of the cross beam. The laser cutting unit is arranged on the moving seat through a lifting plate in a liftable manner. The laser cutting unit includes a capacitance centering module.

[0025] The present invention can realize the position correction of the workpiece by setting the capacitance centering module, and avoid the influence of the manufacturing error and loading error of the workpiece on the processing accuracy.

[0026] It can be seen from the above technical solutions that the present invention has the following advantages: The present invention provides a multifunctional laser cutting machine. By detachably installing the auxiliary support frame inside the main support frame, when processing profiles or pipes is required, the corresponding auxiliary support frame can be installed on the main support frame for use, sharing the processing area inside the bed. Compared with expanding the processing area of pipes and profiles outside the main support frame, the space occupation is greatly reduced, the space utilization rate is improved, it is convenient to greatly expand the processing range without greatly increasing the space occupation of this cutting machine, and it is convenient to arrange the multifunctional laser cutting machine with a large format in the workshop. By adopting a split-type plate support tabletop, the corresponding sub-support tabletop can be increased or decreased according to the length dimension of the workpiece, which is flexible to use and meets the production requirements. At the same time, it can achieve multiple workstations along the length direction of the bed, meeting the requirements of simultaneous processing of pipes, profiles and loading and unloading of plates, and improving the processing efficiency. By setting the first avoidance area and the second avoidance area, the support columns of the auxiliary support frame can extend into the sub-support tabletop and support on the positioning support member, which is suitable for processing heavier pipes and profiles, avoiding directly supporting on the plate support tabletop and causing damage to the plate support tabletop and affecting the processing accuracy. By setting the first support area and the third support area, multiple workstations can be achieved along the width direction of the bed, meeting the simultaneous processing of longer-sized profile pipes and loading and unloading of plates, and improving the processing efficiency of large-sized workpieces. By movably arranging the support plate along the width direction of the bed, the support position can be adjusted according to the width of the profile, which is flexible to use. By movably arranging the support assembly along the length direction of the bed, the support position can be adjusted according to the length of the pipe, which is flexible to use. By rotatably connecting one end of the mounting seat and pressing the other end tightly with a spring, on the one hand, it can ensure that the gear is always meshed with the rack, avoiding large gaps caused by installation and manufacturing errors. On the other hand, through the spring pressing, the vibration generated during the movement of the gantry can be buffered, ensuring the smooth movement of the gantry and improving the processing accuracy. By setting guide wheels for positioning, it can be avoided that the gantry deviates or even derails during the movement, improving the processing accuracy. Through the cooperation of the anti-collision block and the travel detection switch, both soft and hard limits are achieved, avoiding over-positioning during movement. By setting a capacitance centering module, the position deviation of the workpiece can be corrected, avoiding the influence of manufacturing errors and feeding errors of the workpiece on the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0029] Figure 2Schematic diagram of the assembly structure of the plate support tabletop and the profile support tooling in the specific embodiment of the present invention Figure 1 。

[0030] Figure 3 Schematic diagram of the assembly structure of the plate support tabletop and the profile support tooling in the specific embodiment of the present invention Figure 2 。

[0031] Figure 4 Schematic diagram of the structure of the plate support tabletop in the specific embodiment of the present invention.

[0032] Figure 5 Schematic diagram of the assembly structure of the pipe support tooling and the plate support tabletop in the specific embodiment of the present invention

[0033] Figure 6 Schematic diagram of the structure of the pipe support tooling in the specific embodiment of the present invention

[0034] Figure 7 Schematic diagram of the structure of the gantry in the specific embodiment of the present invention

[0035] Figure 8 Schematic diagram of the assembly structure of the mobile motor, the mounting seat and the mounting plate in the specific embodiment of the present invention

[0036] Figure 9 Schematic diagram of the assembly structure of the gantry and the processing component in the specific embodiment of the present invention

[0037] Figure 10 Schematic diagram of the structure of the guide rail in the specific embodiment of the present invention

[0038] In the figure, 1. Bed body; 101. Guide rail; 102. Pressing plate; 103. Adjusting seat; 104. Rack; 105. Baffle; 2. Gantry; 201. Cross beam; 202. Moving frame; 203. Mobile motor; 204. Mounting plate; 205. Mounting seat; 206. Guide wheel; 207. Vibration damping bolt; 208. Travel detection switch; 209. Channel steel; 210. Roller; 211. Anti-collision block; 212. Spring; 213. Rotating shaft; 214. Moving seat; 3. Processing component; 301. Rotating module; 302. Cutting head; 303. Lifting plate; 304. Laser cutting unit; 4. Main support frame; 5. Sub support frame; 6. Positioning support; 7. Sub support tabletop; 701. Support area 1; 702. Support area 2; 703. Support area 3; 704. Avoidance area 1; 705. Standing area; 706. Avoidance area 2; 8. Support frame; 9. Support column; 10. Support plate; 11. Tool bar; 12. Adjusting plate; 13. Laser chuck; 14. Support component; 1401. Support piece; 1402. Lead screw; 1403. Base plate; 15. Support plate. Specific embodiment

[0039] To make the objectives, features, and advantages of the present invention more apparent and understandable, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0040] For a multi-functional laser cutting machine, a sheet metal support table, a profile support tooling, and a pipe support tooling are provided in its processing area. According to the processing requirements, the laser cutting head is controlled to move to the corresponding processing area to process the corresponding workpiece, realizing multi-functional cutting processing of sheet metal, pipes, and profiles. As the size range of the workpiece increases, the sizes of the support table and the tooling also increase, resulting in a significant increase in the floor area of the multi-functional machine tool and increasing the layout difficulty of the multi-functional machine tool. To solve this technical problem, in a specific embodiment of the present invention, the inventor, while retaining multi-functional processing, adopts the technical concept of sharing the processing area for sheet metal, profiles, and / or pipes. When the processing range requires an expanded width, there is no need to expand multiple processing areas separately, greatly avoiding the problem of excessive floor area of the multi-functional laser cutting machine.

[0041] As Figures 1 to 3 and Figure 5 shown, this specific embodiment provides a multi-functional laser cutting machine, which includes a machine bed 1, a gantry 2, a processing assembly 3, and a sheet metal support table, and also includes a pipe support tooling and / or a profile support tooling. In this specific embodiment, to ensure the processing of sheet metal, pipes, and profiles, a pipe support tooling and a profile support tooling are included; the gantry 2 is movably arranged on the machine bed 1, the processing assembly 3 is arranged on the gantry 2, the sheet metal support table is arranged in the processing area of the machine bed 1, the sheet metal support table includes a main support frame 4, and a cutter bar 11 is arranged on the main support frame 4. To facilitate the replacement of the deformed or overly adhered cutter bar 11, the cutter bar 11 is installed in a well-shaped installation frame inside the main support frame 4 in an inserted form; both the pipe support tooling and the profile support tooling include a sub-support frame 5, and the sub-support frame 5 can be detachably installed in the main support frame 4. After installation, the height of the main support frame 4 is lower than that of the sub-support frame 5.

[0042] In this specific embodiment, by detachably installing the auxiliary support frame 5 inside the main support frame 4, when processing profiles or pipes is required, the corresponding auxiliary support frame 5 can be installed on the main support frame 4 for use, sharing the processing area inside the bed 1, and placing the unused support tooling in other positions outside the machine tool (such as a warehouse). Compared with expanding the processing area for pipes and profiles inside the machine tool, the space occupation is greatly reduced, the space utilization rate is improved, it is convenient to greatly expand the processing range without greatly increasing the space occupation of this cutting machine, and it is convenient to arrange a large-format multi-functional laser cutting machine in the workshop.

[0043] When the quality of the processed profile or pipe is small, the pipe support tooling and profile support tooling can be directly placed on the plate support table using a lifting tool such as a crane. If the profile or plate is heavy, directly placing it will generate a large acting force on the plate support table, causing the plate support table to deform and affecting the processing accuracy. Therefore, to expand the processing range of this cutting machine and avoid the inability to process pipes or profiles with a large mass, as Figures 2 to 4As shown in the figure, in this specific embodiment, the plate support tabletop is a split structure. The plate support tabletop includes a plurality of sub-support tabletops 7. Correspondingly, the main support frame 4 is also a split structure. The support frames of adjacent sub-support tabletops 7 are connected by adjacent legs. Specifically, bolt holes are provided on the legs. The width expansion of the main support frame 4 can be achieved by horizontally penetrating two adjacent legs of adjacent sub-support tabletops 7 with bolts. The sub-support tabletops 7 are arranged in the processing area, and the plurality of sub-support tabletops 7 are arranged along the length direction of the bed body 1. Along the width direction of the bed body 1, the sub-support tabletops 7 are sequentially provided with a first avoidance area 704, a standing area 705, and a second avoidance area 706. The support columns 9 of the auxiliary support frame 5 can extend into the interior of the sub-support tabletops from the first avoidance area 704 or the second avoidance area 706. The positioning member is arranged at a position opposite to the first avoidance area 704 or the second avoidance area 706 in the processing area. Knife bars 11 are detachably arranged on the first avoidance area 704 and the second avoidance area 706, or knife bars 11 are not arranged on the first avoidance area 704 and the second avoidance area 706, and the knife bars 11 are arranged on the standing area 705. By providing the first avoidance area 704 and the second avoidance area 706, the support columns 9 of the auxiliary support frame 5 can extend into the sub-support tabletops to support on the positioning support member 6, which is suitable for processing heavier pipes and profiles, avoiding directly supporting on the plate support tabletop and causing damage to the plate support tabletop, thus affecting the processing accuracy. The distribution of the first avoidance area 704 and the second avoidance area 706 corresponds to the distribution of the support columns 9 on the auxiliary support frame 5. To avoid the trouble of disassembling and assembling the knife bars 11, the first avoidance area 704 and the second avoidance area 706 can not cover the knife bars 11 and be in a normally open state. If the processing accuracy is to be ensured, the knife bars 11 can be arranged on the first avoidance area 704 and the second avoidance area 706 by inserting (the installation method of the knife bars 11 is that a cross-shaped support frame is provided in the corresponding area, an installation groove is opened on the upper part of the support frame, and the knife bars 11 are inserted into the installation groove. This is a prior art, and its related structure will not be elaborated). In this specific embodiment, the knife bars 11 are not arranged on the first avoidance area 704 and the second avoidance area 706. By adopting a split-structured plate support tabletop, the corresponding sub-support tabletops 7 can be increased or decreased according to the length dimension of the workpiece, which is flexible to use and meets the production requirements. At the same time, multiple working positions can be realized along the length direction of the bed body 1, meeting the requirements of processing pipes, profiles and loading and unloading plates simultaneously, and improving the processing efficiency. To further expand the width, along the width direction of the bed body 1, the sub-support tabletops 7 are sequentially provided with a first support area 701, a second support area 702, and a third support area 703. The first avoidance area 704, the standing area 705, and the second avoidance area 706 are sequentially arranged in the middle of the second support area 702 along the width direction of the bed body 1. After such an arrangement, multiple working positions can be realized along the width direction of the bed body 1, meeting the requirements of processing longer-sized profiles and pipes and loading and unloading plates simultaneously, and improving the processing efficiency of large-sized workpieces.

[0044] As Figure 3 shown, to ensure the accuracy of the placement of the auxiliary support frame 5, four positioning support members 6 are also provided in the processing area. When the auxiliary support frame 5 is located within the main support frame 4, the positioning support members 6 limit and support the auxiliary support frame 5, which can improve the accuracy of the installation position of the auxiliary support frame 5. In this specific embodiment, the positioning support member 6 includes a pillar. The pillar supports the support column 9 oppositely. A floor bolt is provided at the lower part of the pillar. The floor bolt is arranged on the ground of the processing area. After combining with a spirit level, the auxiliary support frame 5 can be leveled to ensure the processing accuracy.

[0045] As Figure 2 and 3 shown in the figure, in this specific embodiment, the profile support tooling can adopt the following specific structure: the auxiliary support frame 5 includes a support frame 8. The support frame 8 is of a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame 8. The support column group includes a plurality of support columns 9. The plurality of support columns 9 are arranged along the length direction of the bed body 1. Two support plate groups are symmetrically arranged on the support frame 8. The support plate group includes a plurality of support plates 10. The plurality of support plates 10 are arranged along the length direction of the bed body 1. The support plates 10 can be movably arranged on the support frame 8 along the width direction of the bed body 1. In this specific embodiment, each group of support plates 10 is connected to the same pallet 15. The pallet 15 supports the web of the profile. The top of the pallet 15 is of a sawtooth structure; specifically, the support plate 10 is of an L-shaped structure. An adjustment plate 12 is arranged on the support frame 8. Two columns of adjustment holes are arranged on the adjustment plate 12. Each column is provided with a plurality of adjustment holes along the width direction of the bed body 1. After being arranged like this, the adjustment holes at a suitable position can be selected according to the width of the profile, and the corresponding support plates 10 can be fixed by bolts. The adjustment holes are straight slot holes, and the length direction of the adjustment holes is consistent with the length direction of the bed body 1; to facilitate the storage of the profile support tooling and reduce the space occupation, in this specific embodiment, a plurality of support frames 8 are provided. Connection holes are arranged on the support columns 9. The height of the connection holes is higher than the height of the cutter bar. Adjacent support frames 8 are detachably connected by bolts horizontally arranged on the support columns 9.

[0046] As Figure 5 and Figure 6As shown, in this specific embodiment, the pipe support tooling can adopt the following specific structure: The secondary support frame 5 includes a support frame 8, which is a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame 8. Each support column group includes multiple support columns 9, and the multiple support columns 9 are arranged along the length direction of the bed 1. A laser chuck 13 is provided at one end of the support frame 8. Multiple support components 14 are arranged on the support frame 8 along the length direction of the bed 1, and the support components 14 can be movably arranged on the support frame 8 along the length direction of the bed 1. Specifically, the laser chuck 13 can clamp square pipes and round pipes, which is a prior art, and its structure and working principle will not be elaborated in this article. The support component 14 includes a bottom plate 1403. Two support members 1401 are movably arranged on the bottom plate 1403 through slide rails. The middle parts of the two support members 1401 are hinged in a scissor arrangement. Adjusting nuts are connected to the lower parts of the two support members 1401, and the threads of the nuts have opposite directions. The nuts are screwed onto a lead screw 1402. The lead screw 1402 is provided with threads with opposite directions at both ends. The lead screw 1402 is rotatably arranged on the bottom plate 1403 through a bearing seat. One end of the lead screw 1402 is connected to a servo motor, and the servo motor is installed on the bottom plate 1403. After the servo motor rotates, it drives the lead screw 1402 to rotate, and then drives the two nuts to move in opposite directions, so as to adjust the opening size at the upper ends of the two support members 1401 to adapt to the support of pipes with different diameters. Further, to adapt to the support of pipes with different lengths, the bottom plate 1403 is arranged on the support frame 8 through sliders and slide rails. A locking mechanism is provided on the slider to lock the position of the slider. The locking mechanism is a prior art and will not be elaborated. To facilitate the storage of the pipe support tooling and reduce space occupation, in this specific embodiment, multiple support frames 8 are provided. Connecting holes are provided on the support columns 9, and the height of the connecting holes is higher than the height of the tool bar. The adjacent support frames 8 are detachably connected by bolts horizontally arranged on the support columns 9. When not in use, the multiple support frames 8 can be stored separately.

[0047] As Figures 7 to 10As shown, in this specific embodiment, the gantry 2 includes a cross beam 201. At both ends of the cross beam 201, there are moving frames 202. To ensure the force stability of the moving frames 202, the moving frames 202 are triangular in structure. On the outer side of the moving frames 202, there are mounting plates 204. On the mounting plates 204, there are mounting seats 205. On the mounting seats 205, there are moving motors 203. The moving motors 203 are connected with gears, and the gears are meshed with the racks 104 on one side of the guide rails 101 of the machine tool bed 1. In this specific embodiment, the guide rails 101 are I-beams. The lower flange of the guide rail 101 is installed on the adjusting seat 103 through a pressing plate 102. The pressing plate 102 is L-shaped and includes a vertical part and a horizontal part. The vertical part presses against the lower flange of the guide rail 101, and the vertical part is connected to the adjusting holes on the adjusting seat 103 through bolts. The adjusting holes are straight slot holes, which can adjust the levelness of the guide rail 101. At both ends of the guide rail 101, there are baffles 105 to prevent the gantry 2 from moving excessively. Since there is vibration during the movement of the gantry 2, and due to manufacturing errors and installation errors, the gap between the gear and the rack 104 becomes larger or smaller, affecting the moving accuracy of the gantry 2. Therefore, one end of the mounting seat 205 is rotatably connected to the mounting plate 204. Specifically, there is a rotating shaft seat on the mounting plate 204. The rotating shaft 213 is vertically arranged in the rotating shaft seat, and both ends of the rotating shaft 213 are in interference fit with the pin holes on the mounting seat 205. The other end of the mounting seat 205 is horizontally penetrated with a damping bolt 207 (with clearance fit and not thread-connected). A spring 212 is sleeved between the head of the damping bolt 207 and the mounting seat 205. The spring 212 is composed of multiple disc springs and maintains a certain pressure. After the damping bolt 207 penetrates the mounting seat 205, it is screwed to the mounting plate 204 (there are screw holes at the corresponding position of the mounting plate 204). After such a setting, when the gap between the gear and the rack 104 increases, the mounting seat 205 rotates towards the direction close to the mounting plate 204 under the action of the spring 212 and the rotating shaft 213, and the gap between the gear and the rack 104 becomes smaller, returning to the set gap. When the gap becomes smaller, the gear has a force on the mounting seat 205, and this force compresses the spring 212, making the distance between the mounting seat 205 and the mounting plate 204 increase. Furthermore, the gear will not be stuck with the rack 104, ensuring the smooth movement of the gantry 2;Further, along the moving direction, a channel steel 209 is provided at the front end of the gantry 2. Rollers 210 are rotatably provided inside the channel steel 209 and at the bottom of the moving frame 202. The rollers 210 can roll along the guide rail 101 on the bed 1, and the guide rail 101 on the bed 1 is made of I-beam. Guide wheels 206 are also oppositely provided between the channel steel 209 and the bottom of the moving frame 202. The guide wheels 206 are arranged in pairs and are perpendicular to the rollers 210. The two guide wheels 206 are respectively located on both sides of the web of the guide rail 101. The guide wheels 206 can roll along the web of the guide rail 101. Through the guiding action of the guide wheels 206, the deviation or even derailment of the gantry 2 during movement is avoided, and the machining accuracy is improved. To prevent interference or collision caused by the over-positioning of the gantry 2 during movement, a travel detection switch 208 is provided at the lower part of the moving frame 202, and anti-collision blocks 211 are provided at the rear end of the moving frame 202 and the front end of the channel steel 209.

[0048] Such as Figure 9As shown in the figure, in this specific embodiment, the multifunctional laser cutting machine is a three-dimensional five-axis laser cutting machine. The processing component 3 includes a moving seat 214 and a laser cutting unit 304. The moving seat 214 is movably arranged on the cross beam 201 along the length direction of the cross beam 201. Specifically, the cross beam 201 is connected to the moving seat 214 through a slide rail. A rack is arranged on the cross beam 201, and a driving single machine is arranged on the moving seat 214. The driving motor is vertically arranged and connected with a gear, and the gear meshes with the rack. The laser cutting unit 304 is arranged on the moving seat 214 in a liftable manner through a lifting plate 303. Specifically, the laser cutting unit 304 includes a bearing plate. The lifting plate 303 is connected to the bearing plate through a slide rail. A lifting motor is arranged on the bearing plate, and the lifting motor is connected with a gear, and the gear meshes with the rack on the lifting plate 303. The laser cutting unit 304 further includes a rotation module 301 and a cutting head 302. The rotation module 301 can drive the cutting head 302 to rotate around the Z-axis and the Y-axis. The rotation module 301 can also achieve a small range of lifting when the bearing plate does not lift. The rotation module 301 is a prior art, and its structure and working principle will not be elaborated in this article. After such a setting, the multifunctional laser cutting machine has a variety of composite processing methods. Groove cutting can achieve V-shaped, Y-shaped, X-shaped, and K-shaped groove cutting. It can also perform air cutting. By using the air cutting technology, the laser head is kept at a certain height for air flying cutting, solving the problem of H-shaped steel lock cutting, realizing process integration, integrating multiple processes such as punching, grooving, locking, truncating, etc., simplifying the operation process, and reducing manual operation. Due to the installation deviation of the auxiliary support frame 5, the feeding and manufacturing errors of the workpiece raw materials, the position of the raw materials after feeding is deviated, resulting in problems such as cutting misalignment, non-perpendicular cutting hole positions, cutting head 302 hitting the head, sticking the head, and the wing plate not being cut off. To solve this technical problem, in this specific embodiment, the laser cutting unit 304 further includes a capacitance centering module. The capacitance centering module includes a capacitance sensor and a processor connected electrically. The capacitance sensor detects the change in the distance between the cutting head 302 and the workpiece based on the change in capacitance. When the cutting head 302 approaches or moves away from the workpiece, the equivalent capacitance value formed between the two will change accordingly. The capacitance sensor converts this capacitance change into an electrical signal output, and the processor converts the electrical signal into position information, thereby determining the accurate processing position and avoiding the influence of various errors on the processing accuracy.

[0049] It can be seen from the above specific embodiments that the present invention has the following beneficial effects: 1. By detachably installing the auxiliary support frame 5 inside the main support frame 4, when processing profiles or pipes is required, the corresponding auxiliary support frame 5 can be installed on the main support frame 4 for use, sharing the processing area inside the bed 1. Compared with expanding the processing area of pipes and profiles outside the main support frame 4, the space occupation is greatly reduced, the space utilization rate is improved, it is convenient to greatly expand the processing range without greatly increasing the space occupation of this cutting machine, and it is convenient to arrange a large-format multi-functional laser cutting machine in the workshop; 2. By adopting a split-type plate support tabletop, the corresponding sub-support tabletop 7 can be increased or decreased according to the length dimension of the workpiece, which is flexible to use and meets the production requirements. At the same time, it can achieve multiple stations along the length direction of the bed 1, meeting the requirements of simultaneous processing of pipes and profiles and loading and unloading of plates, and improving the processing efficiency; 3. By setting the first avoidance area 704 and the second avoidance area 706, the support column 9 of the auxiliary support frame 5 can extend into the sub-support tabletop and support on the positioning support member 6, which is suitable for processing heavier pipes and profiles, avoiding directly supporting on the plate support tabletop and causing damage to the plate support tabletop, and affecting the processing accuracy; 4. By setting the first support area 701 and the third support area 703, multiple stations can be achieved along the width direction of the bed 1, meeting the simultaneous processing of longer-sized profile pipes and loading and unloading of plates, and improving the processing efficiency of large-sized workpieces; 5. By movably arranging the support plate 10 along the width direction of the bed 1, the support position can be adjusted according to the width of the profile, which is flexible to use; 6. By movably arranging the support assembly 14 along the length direction of the bed 1, the support position can be adjusted according to the length of the pipe, which is flexible to use; by rotatably connecting one end of the mounting seat 205 and pressing the other end tightly with the spring 212, on the one hand, it can ensure that the gear is always meshed with the rack, avoiding large gaps caused by installation and manufacturing errors. On the other hand, by pressing tightly with the spring 212, the vibration generated during the movement of the gantry 2 can be buffered, ensuring the smooth movement of the gantry 2 and improving the processing accuracy; 7. By setting the guide wheel 206 for positioning, it can avoid the deviation or even derailment of the gantry 2 during movement, and improve the processing accuracy; through the cooperation of the anti-collision block 211 and the travel detection switch 208, both soft and hard limits are achieved, avoiding over-positioning during movement; 8. By setting a capacitance centering module, the position deviation of the workpiece can be corrected, avoiding the influence of manufacturing errors and loading errors of the workpiece on the processing accuracy.

[0050] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional laser cutting machine, comprising a bed body (1) and a gantry (2), wherein the gantry (2) is movably arranged on the bed body (1), and a processing component (3) is arranged on the gantry (2), and is characterized in that, It further includes: a plate support tabletop, which is arranged in the processing area of the bed body (1), and the plate support tabletop includes a main support frame (4); a pipe support tooling and / or a profile support tooling, the pipe support tooling and / or the profile support tooling includes a sub-support frame (5), and the sub-support frame (5) can be detachably installed in the main support frame (4). After installation, the height of the main support frame (4) is lower than that of the sub-support frame (5).

2. The multi-functional laser cutting machine according to claim 1, characterized in that, The plate support tabletop is of a split structure, and the plate support tabletop includes a plurality of sub-support tabletops (7). The sub-support tabletops (7) are arranged in the processing area, and the plurality of sub-support tabletops (7) are arranged along the length direction of the bed body (1).

3. The multi-functional laser cutting machine according to claim 2, wherein The sub-support tabletop (7) is sequentially provided with a first avoidance area (704), a permanent area (705), and a second avoidance area (706) along the width direction of the bed body (1). The support columns (9) of the sub-support frame (5) can extend into the interior of the sub-support tabletop (7) from the first avoidance area (704) or the second avoidance area (706). Knife strips (11) are detachably arranged on the first avoidance area (704) and the second avoidance area (706), or knife strips (11) are not arranged on the first avoidance area (704) and the second avoidance area (706), and the knife strips (11) are arranged on the permanent area (705).

4. The multifunctional laser cutting machine according to claim 3, characterized in that, The sub-support tabletop (7) is sequentially provided with a first support area (701), a second support area (702), and a third support area (703) along the width direction of the bed body (1). The first avoidance area (704), the permanent area (705), and the second avoidance area (706) are sequentially arranged in the middle of the second support area (702) along the width direction of the bed body (1).

5. The multi-functional laser cutting machine according to any one of claims 1-4, characterized in that, The sub-support frame (5) of the profile support tooling includes a support frame (8). The support frame (8) is of a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame (8). The support column group includes a plurality of support columns (9). The plurality of support columns (9) are arranged along the length direction of the bed body (1). Two support plate groups are symmetrically arranged on the support frame (8). The support plate group includes a plurality of support plates (10). The plurality of support plates (10) are arranged along the length direction of the bed body (1). The support plates (10) can be movably arranged on the support frame (8) along the width direction of the bed body (1).

6. The multi-functional laser cutting machine according to any one of claims 1-4, characterized in that, The sub-support frame (5) of the pipe support tooling includes a support frame (8). The support frame (8) is of a rectangular structure. Two support column groups are symmetrically arranged at the lower part of the support frame (8). The support column group includes a plurality of support columns (9). The plurality of support columns (9) are arranged along the length direction of the bed body (1). A laser chuck (13) is arranged at one end of the support frame (8). A plurality of support components (14) are arranged on the support frame (8) along the length direction of the bed body (1). The support components (14) can be movably arranged on the support frame (8) along the length direction of the bed body (1).

7. The multifunctional laser cutting machine according to claim 1, wherein The gantry (2) includes a cross beam (201). At both ends of the cross beam (201), there are moving frames (202). The moving frames (202) are triangular in structure. An installation plate (204) is arranged on the moving frames (202). An installation seat (205) is arranged on the installation plate (204). A moving motor (203) is arranged on the installation seat (205). The moving motor (203) is connected with a gear, and the gear meshes with a rack (104) on the machine body (1). One end of the installation seat (205) is rotatably connected with the installation plate (204). The other end of the installation seat (205) is horizontally penetrated with a damping bolt (207). A spring (212) is sleeved between the head of the damping bolt (207) and the installation seat (205). After the damping bolt (207) penetrates through the installation seat (205), it is screwed with the installation plate (204). Rollers (210) are arranged at the bottom of the moving frame (202), and the rollers (210) can roll along the guide rail (101) of the machine body (1).

8. The multi-functional laser cutting machine according to claim 7, characterized in that, The guide rail (101) is made of I-beam. Guide wheels (206) are also oppositely arranged at the bottom of the moving frame (202). The guide wheels (206) are vertically arranged with the rollers (210). The two guide wheels (206) are respectively located on both sides of the web of the guide rail (101), and the guide wheels (206) can roll along the web of the guide rail (101).

9. The multi-functional laser cutting machine according to claim 7, wherein A travel detection switch (208) is arranged at the lower part of the moving frame (202), and a collision avoidance block (211) is arranged on the moving frame (202).

10. The multi-functional laser cutting machine according to claim 1, wherein, The processing assembly (3) includes a moving seat (214) and a laser cutting unit (304). The moving seat (214) is movably arranged on the cross beam (201) along the length direction of the cross beam (201). The laser cutting unit (304) is arranged on the moving seat (214) in a liftable manner through a lifting plate (303). The laser cutting unit (304) includes a capacitance centering module.

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