Laser cutting machining system and laser cutting production method

Abstract

The invention discloses a laser cutting machining system and a laser cutting production method, and belongs to the field of laser machining equipment. According to the technical scheme, the laser cutting machining system comprises a circulating conveying device, a plurality of table boards are arranged on the circulating conveying device in the circulating direction, and the circulating conveying device drives the table boards to operate in a circulating mode; the feeding device is arranged at the front end of the circulating conveying device; the laser cutting machine is arranged in the middle of the circulating conveying device, and the circulating conveying device passes through a machining area of the laser cutting machine; and the discharging device is arranged at the rear end of the circulating conveying device. According to the scheme, the table tops are directly combined with the conveying device of the production line, the multiple table tops move circularly, the feeding station and the discharging station are formed at the same time, feeding and discharging actions are carried out at the same time in the laser cutting machining process, and station switching is directly carried out on the basis of the table tops along with movement of the circulating conveying device; non-stop machining of the laser cutting machine is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of laser processing equipment, and in particular to a laser cutting processing system and a laser cutting production method. Background Art

[0002] Laser cutting is an advanced material processing technology. It uses a laser beam with a high energy density to irradiate the material to be cut, causing the material to quickly melt, vaporize or sublimate, thereby achieving the cutting purpose. Laser cutting has the advantages of high cutting accuracy, narrow cut, small heat affected zone, fast cutting speed, etc. It is widely used in many fields such as machinery manufacturing, automotive, aerospace, electronics, etc. It can perform high-precision cutting processing on various metal and non-metal materials to meet the requirements of different industries for the processing accuracy and quality of parts.

[0003] When realizing automated continuous production, a laser cutting production line is suitable for the cutting production of a large number of workpieces. By integrating each processing link in an orderly manner, such a production line can achieve efficient production operations. During the production process, it can, according to a preset process, sequentially transport the plates to be cut to different workstations to complete operations such as cutting and sorting. It has a high production efficiency, and some production lines can achieve zero-gap cyclic operation, effectively improving production continuity and equipment utilization rate.

[0004] Current laser cutting equipment generally includes main parts such as a bed, a table, and an axis movement system for driving the laser head to move. It is an integral equipment. When forming a production line, it is usually based on one or more laser cutting machines, equipped with auxiliary equipment such as loading, unloading, and conveying, and planning multiple temporary storage stations. Specifically, current laser cutting equipment generally only has one table or two exchangeable tables. When the production line is working, the plates need to be transported to the temporary storage area near the cutting equipment by the loading conveyor for waiting to be loaded. After the plates on the current table are processed and removed by the unloading equipment, new plates can be placed on the table for a new round of processing.

[0005] In the above process, the loading and unloading time is relatively long, affecting the overall production efficiency. Furthermore, there is a certain idle period for the laser cutting equipment, making it difficult to truly achieve completely zero-gap cyclic loading, resulting in time waste during the production process and the overall production rhythm not being compact enough. Summary of the Invention

[0006] Aiming at the problem that there is an idle period for the cutting equipment and time waste in the production line composed of monomer laser cutting equipment currently, the present invention provides a laser cutting processing system that can effectively compress the production rhythm and improve the cutting production efficiency.

[0007] To solve the above problems, the technical solution adopted by the present invention is a laser cutting processing system, which includes: a circulating conveying device, on which a plurality of table tops are arranged along the conveying direction, and the circulating conveying device drives the table tops to run along a set route; the set route includes a processing section and a return section, both the processing section and the return section are linear strokes and the processing section is located above the return section, and the two ends of the processing section and the two ends of the return section are respectively connected by transition sections; at least one loading device arranged at the front end of the circulating conveying device along the conveying direction of the processing section; at least one laser cutting machine arranged in the middle of the circulating conveying device along the conveying direction of the processing section, and the circulating conveying device passes through the processing area of the laser cutting machine; at least one unloading device arranged at the rear end of the circulating conveying device along the conveying direction of the processing section. In the laser processing system of this solution, the traditional form of a laser cutting machine with a fixed or exchangeable table top is no longer adopted. Instead, the table top is directly combined with the conveying device of the production line, and multiple table tops form a circulating movement, while forming a loading station and an unloading station. During the laser cutting process, loading and unloading operations are carried out simultaneously. As the circulating conveying device moves, the station is directly switched based on the table top, greatly simplifying the production process, realizing non-stop processing of the laser cutting machine, and improving the processing efficiency.

[0008] As a preferred implementation solution of a laser cutting processing system, the circulating conveying device includes two platform tracks, the platform tracks are arranged in an oval shape along the conveying direction, platform sprockets are respectively arranged at both ends of at least one of the platform tracks, at least one platform sprocket is connected to a driving motor, and platform chains are jointly installed around the two platform sprockets located at both ends of the same platform track, and the table top is connected to the links in the platform chains. The oval platform tracks, in combination with the driving mode of the platform sprockets and chains, can realize continuous and efficient circulating movement of the table tops, can bear a greater load, ensure the stable operation of the production line under heavy load conditions, ensure the stable conveying of the plates during the laser cutting process, provide a guarantee for improving efficiency, and reduce the risk of equipment failure and maintenance costs.

[0009] As a preferred implementation of a laser cutting processing system, rotating shaft seats are provided on both sides of the bottom surface of the tabletop. A rotating shaft is rotatably installed in the two rotating shaft seats. An installation plate is provided at the end of the rotating shaft. The installation plate is located in a vertical plane. A wheel set is provided on the side of the installation plate facing away from the tabletop. The wheel set includes a plurality of rollers arranged vertically. The rollers located on the upper and lower sides are respectively in rolling cooperation with the top surface and the bottom surface of the platform track; a platform chain connecting plate is provided on at least one side of the installation plate, and the platform chain connecting plate is connected to the link in the platform chain. The rollers arranged vertically are respectively in rolling cooperation with the top surface and the bottom surface of the platform track, which not only enhances the stability of the tabletop, but also effectively reduces the shaking and deviation during the movement of the tabletop, improves the accuracy of the sheet during transportation, ensures the accuracy of laser cutting processing, and can achieve effective support during both the processing section and the return section; the platform chain connecting plate provided on the installation plate is connected to the platform chain, further optimizing the connection method between the tabletop and the circulating conveying device, making the power transmission more efficient and improving the operating efficiency of the entire production line.

[0010] As a preferred implementation of a laser cutting processing system, the loading device includes a raw material tray and a first handling component. The raw material tray is located on one side of the circulating conveying device. The first handling component includes a first frame, which spans above the circulating conveying device and the raw material tray perpendicular to the conveying direction. A first cross beam capable of moving along the first top beam of the first frame is installed on the first frame. The first cross beam is perpendicular to the first top beam. A first moving trolley is provided on the first cross beam. The first moving trolley can move along the first cross beam. A first lifting column is provided on the first moving trolley in a liftable manner. A suction cup component is provided at the lower end of the first lifting column. The loading device can flexibly grab sheets at different positions from the raw material tray and accurately place them on the tabletop at the loading station. This design greatly improves the flexibility and accuracy of loading, shortens the loading time, and thus improves the efficiency of the entire laser cutting production.

[0011] As a preferred implementation of a laser cutting processing system, the unloading device includes a material receiving platform component and a second handling component. The material receiving platform component is arranged on one side of the circulating conveying device. The second handling component includes a second frame, which spans above the circulating conveying device and the material receiving platform component perpendicular to the conveying direction. A second cross beam capable of moving along the second top beam of the second frame is installed on the second frame. A second moving trolley is provided on the second cross beam. The second moving trolley can move along the second cross beam. A second lifting column is provided on the second moving trolley in a liftable manner. A fork component is provided at the lower end of the second lifting column.

[0012] As a preferred implementation of a laser cutting processing system, two blanking devices are provided. The two blanking devices are arranged along the conveying direction, and the receiving platform assemblies in the two blanking devices are respectively located on both sides of the circulating conveying device. By setting two blanking devices arranged along the conveying direction with the receiving platform assemblies located on both sides of the circulating conveying device respectively, the efficiency of blanking and sorting is further improved. Blanking operations are carried out simultaneously on both sides, greatly shortening the overall blanking time. Moreover, according to the characteristics of the workpieces, they can be reasonably distributed to the blanking devices on different sides for processing, making the sorting process more efficient and orderly, and enhancing the overall operating efficiency and adaptability of the production line.

[0013] As a preferred implementation of a laser cutting processing system, the receiving platform assembly includes a receiving platform frame. The receiving platform frame includes two groups of trolley tracks. The two groups of trolley tracks are arranged vertically. An upper blanking trolley and a lower blanking trolley are respectively provided on the two groups of trolley tracks. A blanking trolley driving mechanism for driving the upper blanking trolley and the lower blanking trolley to run alternately is further provided on the receiving platform frame. The two groups of trolley tracks of the receiving platform assembly are arranged vertically, with an upper blanking trolley and a lower blanking trolley respectively provided, and equipped with a blanking trolley driving mechanism, effectively increasing the storage space for receiving materials. By means of the blanking trolley driving mechanism, the upper and lower blanking trolleys run alternately, enabling the rapid reception of workpieces unloaded from the circulating conveying device, reducing the waiting time, further improving the blanking efficiency, and ensuring the continuity of the production line.

[0014] As a preferred implementation of a laser cutting processing system, the two blanking devices are respectively a manual sorting blanking device and an automatic sorting blanking device. In the automatic sorting blanking device, a sorting robot and a finished product tray are provided on the side of the receiving platform assembly away from the circulating conveying device. An end effector is provided at the moving end of the sorting robot. The advantages of manual sorting and automatic sorting are fully utilized. For some workpieces with irregular shapes that require manual judgment, they can be processed through the manual sorting blanking device to ensure the accuracy of sorting; while for workpieces with larger sizes, heavier weights or regular shapes, the sorting robot in the automatic sorting blanking device can perform grasping and sorting operations quickly and efficiently, greatly improving the sorting efficiency. This combination method improves the processing ability of the production line for different types of workpieces, enhances the flexibility and adaptability of the production line, and further improves the overall production efficiency.

[0015] As a preferred implementation of a laser cutting processing system, two laser cutters are provided. The two laser cutters are arranged along the conveying direction of the circulating conveying device. It is possible to simultaneously perform cutting processing on two sheets of plates, greatly improving the cutting efficiency.

[0016] On the other hand, the present invention also provides a laser cutting production method, which uses the above-mentioned laser cutting processing system. The position where the loading device is located is defined as the loading station, the position where the laser cutting machine is located is defined as the processing station, and the position where the unloading device is located is defined as the unloading station. In the laser cutting production method, the circulating conveyor runs and stops at a fixed production rhythm: in the stopped state, the loading device grabs the plate and places it on the tabletop of the loading station, and the laser cutting machine processes the plate on the tabletop in the processing station; the unloading device sorts the plate and the processed workpiece on the tabletop in the unloading station. In the running state, the tabletop in the loading station enters the processing station, the tabletop in the processing station enters the unloading station; the tabletop in the unloading station enters the starting end of the return section of the circulating conveyor, and the tabletop located at the ending end of the return section of the circulating conveyor enters the loading station. By using the above-mentioned laser cutting processing system and running and stopping according to a specific production rhythm, the loading station, the processing station and the unloading station are clearly demarcated, so that the entire production process proceeds in an orderly manner. In the stopped state, operations such as loading, processing and sorting can be carried out simultaneously at each station, making full use of time; in the running state, the tabletops of each station are switched orderly, ensuring the continuity of the production line. This production method optimizes the production process, improves the utilization rate of equipment, reduces waiting time, and further improves the efficiency and quality of laser cutting production, realizing efficient and stable production.

[0017] It can be seen from the above technical solutions that the advantages of the present invention are as follows: This system combines the tabletop of the laser cutting machine with the production line conveyor, together with the loading device and the unloading device to form an integral whole. Multiple tabletops move in a cycle, realizing synchronous loading, unloading and processing, simplifying the production process, achieving non-stop machining, and improving machining efficiency. The circulating conveyor uses an oval platform track and a sprocket chain drive, which can bear a greater load, ensure stable transportation of the plate, reduce the risk of equipment failure and maintenance costs. The rollers at the bottom of the tabletop cooperate with the platform track to enhance stability, reduce shaking and deviation, improve transportation accuracy, optimize the connection between the tabletop and the circulating conveyor, and improve the operation efficiency of the production line. The loading device can flexibly and accurately grab the plate and place it on the tabletop, shortening the loading time. The unloading device improves the unloading and sorting efficiency and enhances the adaptability of the production line through reasonable layout, setting multiple layers of receiving trolleys and combining manual and automatic sorting. Two laser cutting machines are set to process two plates simultaneously, improving the cutting efficiency. The laser cutting production method runs and stops according to a specific rhythm, clearly demarcates the stations, makes full use of time, ensures the continuity of the production line, optimizes the production process, improves the equipment utilization rate, reduces waiting time, and improves the efficiency and quality of laser cutting production. Description of the Drawings

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings required in the description will be briefly introduced below. Obviously, the accompanying 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 accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic of the specific embodiment of the present invention Figure 1 。

[0020] Figure 2 Structural schematic of the specific embodiment of the present invention Figure 2 。

[0021] Figure 3 Structural schematic diagram of the tabletop in the specific embodiment of the present invention.

[0022] Figure 4 Structural schematic of the loading device in the specific embodiment of the present invention Figure 1 。

[0023] Figure 5 Structural schematic of the loading device in the specific embodiment of the present invention Figure 2 。

[0024] Figure 6 Structural schematic of the unloading device in the specific embodiment of the present invention Figure 1 。

[0025] Figure 7 Structural schematic of the unloading device in the specific embodiment of the present invention Figure 2 。

[0026] Figure 8 Structural schematic diagram of the sorting robot in the specific embodiment of the present invention.

[0027] Main reference numeral description 1. Foundation, 2. Loading device, 3. Laser cutting machine, 4. Manual sorting and unloading device, 5. Automatic sorting and unloading device, 6. Tabletop, 7. Platform track, 8. Leg, 9. Driving motor, 10. Raw material tray, 11. Plate, 12. Second handling component, 13. Sorting robot, 14. Finished product tray, 15. Platform chain connecting plate, 16. Roller, 17. Trolley track, 18. Platform chain, 19. First frame, 20. First cross beam, 21. First lifting column, 22. Suction cup component, 23. Raw material bracket, 24. Second frame, 25. Second cross beam, 26. Second lifting column, 27. Fork component, 28. Receiving platform frame, 29. Lower layer unloading trolley, 30. Upper layer unloading trolley, 31. Robot bracket, 32. End effector, 33. Platform sprocket, 34. Rotating shaft seat, 35. Rotating shaft, 36. First moving trolley, 37. Second moving trolley, 38. Mounting plate. Detailed implementation manner

[0028] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to 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.

[0029] Embodiment 1 As Figure 1 , 2 shown, a laser cutting processing system includes: A circulating conveying device, on which a plurality of tabletops 6 are provided. The circulating conveying device drives the tabletop 6 to run along a set route, and the set route includes a processing section and a return section. Both the processing section and the return section are linear strokes, and the processing section is located above the return section. The processing section is Figure 2 the upper flat part in Figure 2 . The tabletop moves from right to left in the processing section, and other devices process the plates on it in the processing section. Therefore, the conveying direction is defined as from right to left in the processing section. At the same time, the return section is

[0030] Specifically, the circulating conveyor device includes two platform tracks 7, and the platform tracks 7 are adaptively arranged in an oval shape. Platform sprockets 33 are respectively provided at both ends of the oval of at least one of the platform tracks 7. The rotation center of the platform sprocket 33 is located at the center of the semi - circle of the transition section. At least one platform sprocket 33 is connected to a drive motor 9. A platform chain 18 is commonly wound around the two platform sprockets 33 located at both ends of the same platform track 7. The table top 6 is connected to the links in the platform chain 18. That is, at the positions of the two platform tracks 7, a platform sprocket and a platform chain can be set at one of the platform tracks to drive the table top, and the table top adopts a follower form at the other platform track. Or, platform sprockets and platform chains can be set at both of the two platform tracks 7 to drive the table top synchronously on both sides. As Figure 3 shown, rotating shaft seats 34 are provided on both sides of the bottom surface of the table top 6. A rotating shaft 35 is rotatably installed in the two rotating shaft seats 34. An installation plate 38 is provided at the end of the rotating shaft 35. The installation plate 38 is located in a vertical plane. A wheel set is provided on the side of the installation plate 38 facing away from the table top 6. The wheel set includes a plurality of rollers 16 arranged vertically. The rollers 16 located on the upper and lower sides respectively rollingly cooperate with the top surface and the bottom surface of the platform track 7. A platform chain connecting plate 15 is provided on at least one side of the installation plate 38. The platform chain connecting plate 15 is connected to the links in the platform chain 18. As Figure 1 shown, the transition sections at both ends of the circulating conveyor device are arc - shaped, that is, the positions where the platform sprockets are located. In order to adapt to the length of the table top and the diameter of the sprocket, that is, the diameter of the transition section is larger, the overall height of the circulating conveyor device is larger. Therefore, in the foundation 1 of the workshop, the preferred layout plan is to excavate a pit, and the platform track 7 is fixed to the pit and the ground of the foundation through the support legs 8. Other equipment of the processing system can be normally arranged on the ground.

[0031] When the cyclic conveying device is in operation, the driving motor 9 drives at least one platform sprocket 33 to rotate. Since the platform chain 18 is looped between the platform sprockets 33 at both ends of the same platform track 7, the platform chain 18 will move cyclically accordingly. The mounting plates 38 at the ends of the rotating shafts 35 in the rotating shaft seats 34 on both sides of the bottom surface of the tabletop 6 are connected to the links of the platform chain 18 by means of the platform chain connecting plates 15. Thus, the tabletop 6 moves synchronously with the platform chain 18. During this period, the rollers 16 of the wheel sets on the mounting plates 38 respectively rollingly cooperate with the top surface and the bottom surface of the platform track 7 to ensure the stable operation of the tabletop 6. Under the traction of the platform chain 18, the tabletop 6 circulates along the set route of the platform track 7. This route includes a processing section, a return section and a transition section. The processing section is above the return section, and both are straight-line trips and are connected by the transition section. When the tabletop 6 runs to the transition section where the platform sprockets at both ends are arc-shaped, the turning between the processing section and the return section is realized. This cyclic conveying device has significant advantages. Given its relatively large overall height, a pit is excavated in the workshop foundation 1, and the platform track 7 is fixed to the pit and the ground of the foundation by means of the support legs 8, so that other equipment of the processing system can be properly arranged on the ground, making efficient use of the space and avoiding interference between equipment layouts; multiple tabletops 6 are arranged along the conveying direction and circulate under the drive of the platform chain 18 to achieve uninterrupted material conveying, greatly improving the processing efficiency; the tabletop 6 is in rolling cooperation with the platform track 7 through the rollers 16 of the wheel set, reducing the movement friction and equipment wear, and this connection method and the platform chain drive ensure the running stability of the tabletop 6, and further ensure the accuracy of the processing process.

[0032] The feeding device 2 is arranged at the front end of the cyclic conveying device along the conveying direction (i.e., Figure 2 the right end in Figure 4 . 5 In this embodiment, there is one feeding device 2. As shown in

[0033] The loading device 2 is arranged at the front end of the circulating conveying device along the conveying direction of the processing section. Its raw material tray 10 is installed on the foundation 1 via the raw material bracket 23, located on one side of the circulating conveying device. The first frame 19 of the first handling component is perpendicular to the conveying direction and spans above the circulating conveying device and the raw material tray 10. During operation, the first crossbeam 20 moves along the first top beam of the first frame 19, driving the first moving trolley 36 to be positioned above the raw material tray 10. Then the first moving trolley 36 adjusts its position along the first crossbeam 20. Subsequently, the first lifting column 21 descends, the suction cup assembly 22 adsorbs the sheet material, and then the first lifting column 21 ascends, and moves along a predetermined path via the first moving trolley 36 and the first crossbeam 20, transporting the raw material to the tabletop 6 of the circulating conveying device and putting it down, completing automatic loading; the first frame 19, the first crossbeam 20, the first moving trolley 36, and the first lifting column 21 cooperate to flexibly and accurately transport the raw material from the raw material tray 10 to the tabletop of the circulating conveying device, ensuring accurate loading position. The laser cutting machine 3, in this embodiment, as Figure 1 , 2 shown, there are two laser cutting machines 3. The two laser cutting machines 3 are arranged in sequence along the conveying direction of the processing section in the middle of the circulating conveying device. The circulating conveying device passes through the processing area of the laser cutting machine 3. In this solution, compared with the conventional single-body cutting machine, the laser cutting machine does not have a bed part. Its axis movement system is directly arranged on the foundation, and the original bed part is vacated as the passage for the circulating conveying device to pass through. For the axis movement system and the laser head part, the form of the existing laser cutting machine can be adopted.

[0034] The unloading device, in this embodiment, there are two unloading devices. The two unloading devices are arranged along the conveying direction and are arranged at the rear end of the circulating conveying device along the conveying direction of the processing section, as Figure 6 , 7 , 8 shown. The unloading device includes a material receiving platform assembly and a second handling component 12. The material receiving platform assembly is arranged on one side of the circulating conveying device (the material receiving platform assemblies in the two unloading devices can be respectively arranged on both sides of the circulating conveying device). The second handling component includes a second frame 24. The second frame 24 is perpendicular to the conveying direction and spans above the circulating conveying device and the material receiving platform assembly. A second crossbeam 25 capable of moving along the second top beam of the second frame 24 is installed on the second frame 24. A second moving trolley 37 is provided on the second crossbeam 25. The second moving trolley can move along the second crossbeam 25. A second lifting column 26 is provided on the second moving trolley 37 in a liftable manner. A fork frame assembly 27 is provided at the lower end of the second lifting column 26.

[0035] As Figure 6As shown in the figure, the receiving platform assembly includes a receiving platform frame 28. The receiving platform frame 28 includes two sets of trolley tracks 17, which are arranged vertically. An upper layer blanking trolley 30 and a lower layer blanking trolley 29 are respectively provided on the two sets of trolley tracks 17. The receiving platform frame 28 is also provided with a blanking trolley driving mechanism for driving the upper layer blanking trolley 30 and the lower layer blanking trolley 29 to run alternately. The trolley driving mechanism includes trolley driving sprockets provided at both ends of the receiving platform frame 28. One of the trolley driving sprockets is connected to a driving motor. A trolley driving chain is commonly wound around the two trolley driving sprockets. In this way, the trolley driving chain has two straight sections, upper and lower. When the trolley driving chain runs, the moving directions of the two straight sections are opposite. The upper layer blanking trolley and the lower layer blanking trolley are respectively fixedly connected to the links in the two straight sections, that is, the alternate running of the two trolleys is realized.

[0036] When the processed materials reach the rear end of the circulating conveying device, the second cross beam 25 moves along the second top beam of the second frame 24, driving the second moving trolley 37 to be positioned above the materials. Then the second moving trolley 37 adjusts its position along the second cross beam 25. Subsequently, the second lifting column 26 descends, and the fork assembly 27 picks up the materials. The second lifting column 26 rises and moves along the established path through the second moving trolley 37 and the second cross beam 25 to transport the materials to the receiving platform assembly. The receiving platform frame 28 of the receiving platform assembly is provided with two sets of trolley tracks 17 arranged vertically, and the upper layer blanking trolley 30 and the lower layer blanking trolley 29 are respectively arranged on the tracks. The alternate movement of the two blanking trolleys improves the blanking efficiency. Trolley driving sprockets are provided at both ends of the receiving platform frame 28. One of the sprockets is connected to the driving motor. A trolley driving chain is wound around between the two sprockets. When the trolley driving chain runs, the moving directions of the upper and lower straight sections of the trolley driving chain are opposite. The upper layer blanking trolley and the lower layer blanking trolley are respectively fixedly connected to the links of the two straight sections to realize alternate running. When the next material arrives, it can be switched to the other trolley for receiving. The blanking device is arranged at the rear end of the circulating conveying device to realize automatic blanking, greatly reducing manual intervention and improving production efficiency; the second frame 24, the second cross beam 25, the second moving trolley 37 and the second lifting column 26 cooperate to flexibly and accurately transport the materials from the circulating conveying device to the receiving platform assembly, ensuring the accurate blanking position and providing guarantee for the orderly development of the subsequent process; the double-trolley alternate running mode of the receiving platform assembly improves the continuity of receiving and avoids production stagnation caused by untimely receiving.

[0037] In this embodiment, the two blanking devices are respectively a manual sorting and blanking device 4 and an automatic sorting and blanking device 5. In the automatic sorting and blanking device 5, a sorting robot 13 and a finished product tray 14 are provided on one side of the receiving platform assembly away from the circulating conveyor device. The sorting robot 13 is installed on a robot support 31, and an end effector 32 is provided at the moving end of the sorting robot 13. The end effector 32 is preferably a suction cup type end effector. After the sheet is cut in the laser cutting machine 3, the sheet smaller than 200mm*200mm is sorted by the manual sorting and blanking device 4, and the second handling assembly 12 transports the sheet to the upper blanking trolley or the lower blanking trolley, and then is sorted manually; the sheet larger than 200mm*200mm is sorted by the automatic sorting and blanking device 5, and the second handling assembly 12 transports the sheet to the upper blanking trolley or the lower blanking trolley, and is sorted by the robot 13 onto the finished product tray 14.

[0038] Embodiment 2 Based on the laser cutting processing system of Embodiment 1, this embodiment further provides a laser cutting production method. Using the laser cutting processing system as in Embodiment 1, the location of the loading device is defined as the loading station, the location of the laser cutting machine is defined as the processing station, and the location of the blanking device is defined as the blanking station; In the laser cutting production method, the circulating conveyor device runs and stops at a fixed production rhythm: In the stopped state, the loading device 2 grabs the sheet 11 and places it on the tabletop of the loading station, and the laser cutting machine processes the sheet on the tabletop in the processing station; the blanking device sorts the sheet and the processed workpiece on the tabletop in the blanking station; In the running state, the tabletop in the loading station enters the processing station, and the tabletop in the processing station enters the blanking station; the tabletop in the blanking station enters the starting end of the return section of the circulating conveyor device, and the tabletop at the end of the return section of the circulating conveyor device enters the loading station.

[0039] The loading time at the loading station is 30S, the chain transmission speed is 30 meters / min, both cutting machines are fully loaded (the time for transporting the sheet is 24s), the cutting time is related to the plate thickness and workpiece, the automatic blanking time is 60 seconds, the robot sorting time is related to the workpiece size, and the normal grasping time is within 15s at a time.

[0040] As can be seen from the above embodiments, the beneficial effects of the present invention are as follows: The system combines the table of the laser cutting machine with the production line conveying device, together with the loading device and the unloading device to form an integral whole. Multiple tables move cyclically, realizing simultaneous loading, unloading and processing, simplifying the production process, achieving processing without stopping, and improving processing efficiency. The circulating conveying device adopts an oval platform track combined with a sprocket and chain drive, which can bear a greater load, ensure stable conveying of the sheet metal, reduce the risk of equipment failure and maintenance costs. The rollers on the bottom surface of the table cooperate with the platform track to enhance stability, reduce shaking and deviation, improve the transportation accuracy, optimize the connection between the table and the circulating conveying device, and improve the operation efficiency of the production line. The loading device can flexibly and accurately grab the sheet metal and place it on the table, shortening the loading time. The unloading device improves the unloading and sorting efficiency and enhances the adaptability of the production line through reasonable layout, setting up multiple layers of receiving carts and combining manual and automatic sorting. Two laser cutting machines are set up to process two sheets of metal at the same time, improving the cutting efficiency. The laser cutting production method runs and stops at a specific rhythm, clearly divides the workstations, makes full use of time, ensures the continuity of the production line, optimizes the production process, improves the equipment utilization rate, reduces the waiting time, and improves the efficiency and quality of laser cutting production.

[0041] The foregoing description of the disclosed embodiments enables those skilled in the art to implement 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 invention. Therefore, the present invention will not 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 laser cutting processing system, characterized in that, Comprising: A circulating conveying device, on which a plurality of table surfaces (6) are arranged along a set route, and the circulating conveying device drives the table surfaces (6) to run along the set route; the set route includes a processing section and a return section, both the processing section and the return section are linear strokes and the processing section is located above the return section, and the two ends of the processing section and the two ends of the return section are respectively connected by transition sections; At least one loading device (2), arranged at the front end of the circulating conveying device along the conveying direction of the processing section; At least one laser cutting machine (3), arranged in the middle of the circulating conveying device along the conveying direction of the processing section, and the circulating conveying device passes through the processing area of the laser cutting machine (3); At least one unloading device, arranged at the rear end of the circulating conveying device along the conveying direction of the processing section.

2. The laser cutting processing system according to claim 1, characterized in that The circulating conveying device includes two platform tracks (7), the platform tracks (7) are arranged along the set route, platform sprockets (33) are respectively arranged at both ends of at least one of the platform tracks (7), for the same platform track, at least one of the two platform sprockets (33) is connected with a driving motor (9), a platform chain (18) is jointly installed around the two platform sprockets (33) located at both ends of the same platform track (7), and the table surface (6) is connected with the link in the platform chain (18).

3. The laser cutting and processing system according to claim 2, wherein Rotating shaft seats (34) are arranged on both sides of the bottom surface of the table surface (6), a rotating shaft (35) is jointly rotatably installed in the two rotating shaft seats (34), an installation plate (38) is arranged at the end of the rotating shaft (35), the installation plate (38) is located in a vertical plane, a wheel set is arranged on the side of the installation plate (38) facing away from the table surface (6), the wheel set includes a plurality of rollers (16) arranged up and down, and the rollers (16) located on the upper and lower sides are respectively in rolling cooperation with the top surface and the bottom surface of the platform track (7); a platform chain connecting plate (15) is arranged on at least one side of the installation plate (38), and the platform chain connecting plate (15) is connected with the link in the platform chain (18).

4. The laser cutting processing system according to claim 1, wherein The loading device (2) includes a raw material tray (10) and a first handling component, the raw material tray (10) is located on one side of the circulating conveying device, the first handling component includes a first frame (19), the first frame (19) perpendicularly crosses above the circulating conveying device and the raw material tray (10) in the conveying direction, a first cross beam (20) capable of moving along the first top beam of the first frame (19) is installed on the first frame (19), the first cross beam (20) is perpendicular to the first top beam, a first moving trolley (36) is arranged on the first cross beam (20), the first moving trolley (36) can move along the first cross beam (20), a first lifting column (21) is arranged on the first moving trolley (36) in a liftable manner, and a suction cup component (22) is arranged at the lower end of the first lifting column (21).

5. The laser cutting processing system according to claim 1, characterized in that, The blanking device includes a material receiving platform assembly and a second handling assembly (12). The material receiving platform assembly is arranged on one side of the circulating conveyor device. The second handling assembly includes a second frame (24). The second frame (24) is perpendicular to the conveying direction and spans above the circulating conveyor device and the material receiving platform assembly. A second cross beam (25) capable of moving along the second top beam of the second frame (24) is installed on the second frame (24). A second moving trolley (37) is provided on the second cross beam (25). The second moving trolley can move along the second cross beam (25). A second lifting column (26) is provided on the second moving trolley (37) in a liftable manner. A fork assembly (27) is provided at the lower end of the second lifting column (26).

6. The laser cutting processing system according to claim 5, wherein, There are two blanking devices, which are arranged along the conveying direction. The material receiving platform assemblies in the two blanking devices are respectively located on both sides of the circulating conveyor device.

7. The laser cutting processing system according to claim 5 or 6, characterized in that, The material receiving platform assembly includes a material receiving platform frame (28). The material receiving platform frame (28) includes two groups of trolley tracks (17). The two groups of trolley tracks (17) are arranged vertically. An upper layer blanking trolley (30) and a lower layer blanking trolley (29) are respectively provided on the two groups of trolley tracks (17). A blanking trolley driving mechanism for driving the upper layer blanking trolley (30) and the lower layer blanking trolley (29) to run alternately is further provided on the material receiving platform frame (28).

8. The laser cutting processing system according to claim 6, wherein, The two blanking devices are respectively a manual sorting blanking device (4) and an automatic sorting blanking device (5). In the automatic sorting blanking device (5), a sorting robot (13) and a finished product tray (14) are provided on the side of the material receiving platform assembly away from the circulating conveyor device. An end effector (32) is provided at the moving end of the sorting robot (13).

9. The laser cutting processing system according to claim 1, wherein, There are two laser cutting machines (3), which are arranged along the conveying direction of the circulating conveyor device.

10. A laser cutting production method, characterized in that, Adopt the laser cutting processing system according to any one of claims 1-9. Define the position where the loading device is located as the loading station, the position where the laser cutting machine is located as the processing station, and the position where the blanking device is located as the blanking station; In the laser cutting production method, the circulating conveyor device runs and stops at a fixed production beat: In the stopped state, the loading device (2) grabs the plate and places it on the table surface of the loading station. The laser cutting machine processes the plate on the table surface in the processing station; the blanking device sorts the plate and the processed workpiece on the table surface in the blanking station. In the running state, the table surface in the loading station enters the processing station, and the table surface in the processing station enters the blanking station; the table surface in the blanking station enters the starting end of the return section of the circulating conveyor device, and the table surface located at the end of the return section of the circulating conveyor device enters the loading station.

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