Box rotating device, box laser cutting system and machining method

Abstract

The invention discloses a box rotating device, a box laser cutting system and a machining method, and belongs to the field of laser machining equipment. According to the technical scheme, the box rotating device comprises a base, a vertical overturning assembly and a horizontal rotating assembly are arranged on the base, the vertical overturning assembly comprises two clamping mechanisms, each clamping mechanism comprises an overturning clamping jaw, the overturning clamping jaws in the two clamping mechanisms are oppositely arranged, and the two clamping mechanisms can move oppositely; the horizontal rotating assembly is located between the two clamping mechanisms. According to the device, the turnover clamping jaws on the two sides grab the box body, the box body can be turned over in the vertical face, the machining face, facing the laser cutting head, of the box body can be changed, the box body can be kept in the inclined state through clamping, the edges of the box body are cut, the horizontal rotating assembly rotates, all the faces and the edges of the box body reach the machining position, and therefore the box body can be machined. The device can be matched with a common three-axis laser cutting machine to achieve continuous machining of a plurality of faces of box type workpieces, and machining difficulty and equipment cost are reduced.

Description

Technical Field

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

[0002] A laser cutting machine emits laser light from a laser, which is focused into a laser beam with a high power density through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, a high-pressure gas coaxial with the beam blows away the melted or vaporized metal. As the relative position of the beam and the workpiece moves, finally a cut is formed in the material, thereby achieving the purpose of cutting.

[0003] Currently, the commonly used structure of a laser cutting machine includes a bed for carrying the workpiece, a cross beam that moves along the length direction of the bed, a head module of the laser cutting machine is installed on the cross beam, the head module can move along the cross beam, and the head module has a laser cutting head that can be lifted and lowered, so as to realize the X - Y - Z three-axis movement of the laser cutting head.

[0004] The above-mentioned laser cutting machine architecture is mainly used for the processing of flat plates. After the laser focus is fixed, it performs planar movement. Therefore, for box-shaped parts, especially the side and edge parts of the box body, cutting cannot be achieved. It is necessary to manually carry and flip the workpiece, or use a three-dimensional five-axis cutting machine, which enables the laser head to have a higher degree of freedom to achieve processing at other angles. However, the cost of a laser cutting machine with a higher degree of freedom is greatly increased, and the economic efficiency of use is poor. Summary of the Invention

[0005] In view of the problem that the current ordinary three-axis cutting machine cannot achieve the cutting and processing of each surface of box-shaped parts, the present invention provides a box body rotation device to cooperate with a three-axis laser cutting machine to realize multi-face switching and cutting processing of the box body.

[0006] To solve the above problems, the technical solution adopted by the present invention is a box body rotating device, which includes a base. A vertical flipping assembly and a horizontal rotating assembly are arranged on the base: The vertical flipping assembly includes two sets of clamping mechanisms. Each clamping mechanism includes a column, and a flipping jaw is provided at the upper end of the column. The flipping jaw is connected to a flipping driving motor, and the rotation plane of the flipping jaw is a vertical plane. The flipping jaws in the two sets of clamping mechanisms are arranged oppositely, and the two sets of clamping mechanisms can move towards each other; The horizontal rotating assembly is located at the middle position between the two clamping mechanisms. The horizontal rotating assembly includes a rotating mechanism, and the rotating mechanism includes a rotating tray. The rotating tray is connected to a rotating motor, and the rotation plane of the rotating tray is a horizontal plane. This box body rotating device uses the rotating tray as the tabletop for carrying the box body. The laser cutting head of the laser cutting machine processes a specific surface of the box body. The box body is grabbed by the clamping mechanisms and flipping jaws that can approach each other on both sides, and the box body can be flipped within the vertical plane, thereby changing the processing surface of the box body facing the laser cutting head. At the same time, the clamping mechanism has a positioning function, and the box body can also be directly held in an inclined state by clamping to cut the edges of the box body. The rotating tray rotates itself, and in cooperation with the flipping jaw, it can further make each surface and edge of the box body reach the processing position. This device can realize multi-face and multi-angle displacement of box body workpieces, can cooperate with a general three-axis laser cutting machine to realize continuous processing of multiple surfaces of box body workpieces, and reduces the processing difficulty and equipment cost.

[0007] As a preferred implementation scheme of a box body rotating device, two sets of walking guide rails are provided on the base. The lower ends of the columns in the two sets of clamping mechanisms are respectively installed on the two sets of walking guide rails, and the columns can slide along the corresponding walking guide rails; Along the extension direction of the walking guide rails, synchronous belt wheels are respectively provided at both ends of the base. A walking synchronous belt is commonly wound around the two synchronous belt wheels. The walking synchronous belt has two straight sections, and the two columns are respectively fixed to the two straight sections. One of the synchronous belt wheels is connected to a walking motor. Driven by the walking synchronous belt, the clamping mechanism can flexibly adjust its position, complete the approaching clamping and releasing and retracting of the box body, and can adapt to boxes of different sizes, greatly improving the versatility of the device; At the same time, the walking synchronous belt has stable transmission and high precision. The two sets of clamping mechanisms are respectively connected to the two straight sections of the walking synchronous belt, ensuring the synchronism, accuracy and stability of the middle movement of the clamping mechanisms, thereby improving the positioning and processing precision of the box body.

[0008] As a preferred implementation of a box rotating device, the column includes a mounting plate which is located in a vertical plane. The mounting plates of the two columns are arranged parallel and facing each other. The two flipping jaws are respectively mounted on the opposite surfaces of the two mounting plates through rotating shafts. The two flipping driving motors are respectively mounted on the opposite surfaces of the two mounting plates. In each clamping mechanism, a first driven gear is provided on the flipping jaw. The output shaft of the flipping driving motor passes through the mounting plate and is provided with a first driving gear, and the first driving gear meshes with the first driven gear. By precisely controlling the flipping driving motor, precise adjustment of the flipping angle of the box can be achieved, meeting the processing requirements of different processing surfaces, and improving the flexibility and accuracy of processing; the gear transmission structure can provide stable torque transmission, ensuring that the flipping jaw flips the box smoothly. Mounting the flipping driving motor on the back of the mounting plate makes rational use of space and optimizes the equipment layout.

[0009] As a preferred implementation of a box rotating device, the flipping jaw includes a jaw base which is rotatably connected to the column. Two telescopic cylinders are oppositely arranged on the jaw base. The cylinder rod ends of the two telescopic cylinders are respectively provided with clamping plates. In the same flipping jaw, the two clamping plates are parallel and facing each other. The structure of the telescopic cylinder and the clamping plate can quickly and conveniently grasp and release the box, improving work efficiency; the two clamping plates are oppositely arranged and parallel to each other, which can evenly apply a clamping force to the box, ensuring the stability of the box during processing; the cylinder clamping has a certain elasticity, preventing excessive squeezing force on the box. By adjusting the cylinder pressure, different clamping forces can be provided, further enhancing the applicability of the device.

[0010] As a preferred implementation of a box rotating device, the horizontal rotating assembly further includes a lifting mechanism. The lifting mechanism includes a threaded sleeve rotatably mounted on the base. The threaded sleeve is connected to a lifting drive motor capable of driving the threaded sleeve to rotate. A threaded rod is installed in the threaded sleeve by thread fit. A rotation limiting mechanism is provided at the lower end of the threaded rod, and a lifting tray is provided at the upper end of the threaded rod. The rotating tray and the rotating motor are mounted on the lifting tray, and the rotating tray is rotatably connected to the lifting tray; a second driven gear is provided on the bottom surface of the rotating tray, the rotating motor is installed at the bottom of the lifting tray, and the output shaft of the rotating motor passes through the lifting tray and is equipped with a second driving gear, which meshes with the second driven gear. The setting of the lifting mechanism enables the rotating tray to adjust its height in the vertical direction. According to the working height of the laser cutting machine and the processing requirements of the box, the box can be adjusted to the optimal processing position, improving the convenience and adaptability of processing; combined with the flipping jaws of the rotating mechanism, it can realize multi-dimensional displacement of the box in space and lower during flipping to avoid the flipping space position of the box, further expanding the coverage range of the device for the processing surface of the box, meeting more complex processing requirements, and improving the comprehensiveness and efficiency of processing.

[0011] As a preferred implementation of a box rotating device, one of the lifting tray and the base is provided with a proximity sensor, and the other is provided with an induction bracket. When the lifting tray descends to the lowest position, the induction bracket triggers the proximity sensor. The setting of the proximity sensor and the induction bracket provides an accurate position limiting function for the lifting mechanism, ensuring that the lifting tray and the rotating tray descend to the lowest position before the flipping jaws flip the box, avoiding interference of the lifting tray and the rotating tray with the flipping action of the box, ensuring the safety and reliability of the device operation, reducing the risk of equipment damage, and improving the safety of operators at the same time.

[0012] As a preferred implementation of a box rotating device, the rotation limiting mechanism includes a spline sleeve fixedly mounted on the base. The lower end of the threaded rod has a spline section located below the threaded sleeve, and the spline section is inserted and matched with the spline sleeve. The design of the rotation limiting mechanism effectively prevents the threaded rod from rotating during the lifting process, ensuring the normal operation and lifting accuracy of the lifting mechanism. Spline connection has the characteristics of strong load-bearing capacity and high centering accuracy, which can ensure the smooth and reliable operation of the threaded rod during the lifting process, improve the overall stability and reliability of the device, and provide a strong guarantee for the precise processing of the box.

[0013] On the other hand, the present invention further provides a box body laser cutting system, which includes a laser cutting machine and also includes the above-mentioned box body rotating device, and the laser cutting head of the laser cutting machine is located above the box body rotating device. Combining the box body rotating device with the laser cutting machine forms a complete box body laser cutting system. The box body rotating device can realize the multi-faceted and multi-angle displacement of the box body. Cooperating with the laser cutting machine, it can realize the continuous processing of multiple faces of box body workpieces, without the need for manual frequent adjustment of the box body position, greatly improving the processing efficiency. At the same time, the requirements for the performance of the laser cutting machine equipment are reduced, and the equipment cost investment is reduced.

[0014] In the third aspect, the present invention also provides a box body laser cutting processing method. Set the moving direction of the column as the X direction, the vertical direction as the Z direction, and the direction perpendicular to the X direction in the horizontal plane as the Y direction. The method includes the following steps: S1. Prepare for processing: Place the box body on the rotating tray. The two groups of clamping mechanisms are in the farthest position, the rotating mechanism is in the lowest position, and the laser cutting head is in the uppermost position of the stroke. Import the length, width, and height dimensions of the box body and the serial number of the cutting pattern into the industrial control computer of the box body laser cutting system. The serial number of the cutting pattern corresponds to multiple faces and / or edges of the box body; S2. Start processing: The lifting drive motor drives the lifting tray and the rotating tray to rise, and at the same time the laser cutting head descends, so that the position of the box body can just enable the laser cutting head to cut the top surface of the box body. The laser cutting machine drives the laser cutting head to move according to the set cutting pattern and performs cutting processing on the top surface; S3. Switch the processing surface, including: S3-1. Switch to edge processing. The laser cutting head rises to the highest point, the traveling motor operates, and drives the two groups of clamping mechanisms to approach each other through the synchronous belt pulley and the traveling synchronous belt until the flipping jaws just contact the box body. The telescopic cylinder drives the clamping plate to clamp the box body, and then the lifting drive motor drives the lifting tray and the rotating tray to descend to the lowest position. The flipping drive motor drives the flipping jaws to rotate a first set angle to make an edge of the box body face upward; Or, S3-2. Switch to processing the other side in the Y direction. The laser cutting head rises to the highest point, the traveling motor operates, and drives the two groups of clamping mechanisms to approach each other through the synchronous belt pulley and the traveling synchronous belt until the flipping jaws just contact the box body. The telescopic cylinder drives the clamping plate to clamp the box body, and then the lifting drive motor drives the lifting tray and the rotating tray to descend to the lowest position. The flipping drive motor drives the flipping jaws to rotate a second set angle to make the side or bottom surface of the box body in the Y direction face upward. The lifting drive motor drives the lifting tray and the rotating tray to rise. The rotating tray supports the box body, the telescopic cylinder retracts, the clamping plate relaxes the box body, and the traveling motor drives the two groups of clamping mechanisms to move away from each other; Or, S3-3. Switch to the other side processing in the X direction, the laser cutting head rises to the highest point, the rotating motor drives the rotating pallet to rotate 90°, the walking motor is activated, and the two sets of clamping mechanisms are driven to approach each other through the synchronous pulley and the walking synchronous belt until the flipping claw just contacts the box body, the telescopic cylinder drives the clamping plate to clamp the box body, and then the lifting drive motor drives the lifting pallet and the rotating pallet to descend to the lowest position, the flipping drive motor drives the flipping claw to rotate the second set angle, so that the side of the box body in the X direction faces up, the lifting drive motor drives the lifting pallet and the rotating pallet to rise, the rotating pallet supports the box body, the telescopic cylinder retracts, the clamping plate releases the box body, and the walking motor drives the two sets of clamping mechanisms to move away from each other; S4. The laser cutting machine drives the laser cutting head to move according to the set cutting pattern, and cuts the currently upward surface of the box according to the corresponding cutting pattern; S5. Repeat steps S3 and S4 to complete the cutting process of the entire box.

[0015] As a preferred implementation scheme of a box laser cutting method, in step S3, S3-1, S3-2 and S3-3 can be continuously and alternately operated.

[0016] It can be seen from the above technical scheme that the advantages of the present invention are as follows: the box rotating device of this scheme realizes multi-faceted and multi-angle displacement of box-type workpieces through the vertical flip assembly and the horizontal rotation assembly, and can complete continuous processing of multiple surfaces in cooperation with the laser cutting machine without frequent manual adjustment, greatly improving processing efficiency, reducing processing difficulty and equipment cost; the clamping mechanism driven by the walking synchronous belt can flexibly adapt to boxes of different sizes, improve versatility, and the synchronous belt drive ensures the synchronization, accuracy and stability of the movement of the clamping mechanism, thereby improving the positioning and processing accuracy of the box; the precise control of the flip drive motor can accurately adjust the box The box flip angle, gear transmission ensures smooth flipping, and the rear motor optimizes the equipment layout; the telescopic cylinder and splint structure can quickly grasp and release the box, improve work efficiency, and the uniform clamping force ensures the stability of the box. The cylinder has a certain elasticity and the clamping pressure can be adjusted, which enhances the applicability of this device; the lifting mechanism can adjust the height of the box as needed, cooperate with the flipping claw to achieve multi-dimensional displacement, expand the coverage of the processing surface, and avoid the movement space when the box is flipped vertically; the proximity sensor and induction bracket ensure the safe and reliable operation of the device, and the rotation limit mechanism ensures the lifting accuracy and stability of the device. The box laser cutting system further combines the rotating device with the laser cutting machine. By applying the flipping device, the performance requirements of the laser cutting machine are reduced, and the equipment cost investment is reduced; in the box laser cutting processing method, a variety of processing surface switching methods can be continuously and alternately operated, flexibly meeting the processing requirements of different faces and edges of the box, and completing the processing of each face of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic three-dimensional structure diagram of the first embodiment of the present invention.

[0019] Figure 2 It is a schematic front view structure diagram of the first embodiment of the present invention.

[0020] Figure 3 It is a schematic front view structure diagram of the lifting mechanism in the raised state in the first embodiment of the present invention.

[0021] Figure 4 It is a schematic three-dimensional structure diagram when the flipping gripper clamps the box body in the first embodiment of the present invention.

[0022] Figure 5 It is a schematic three-dimensional structure diagram when cutting the edge of the box body in the first embodiment of the present invention.

[0023] Figure 6 It is a schematic top view structure diagram of the box body rotating device in the first embodiment of the present invention.

[0024] Figure 7 It is a schematic front view structure diagram of the second embodiment of the present invention.

[0025] Main reference numeral description 1. Base, 2. Traveling motor, 3. Traveling synchronous belt, 4. Upper connecting member on the synchronous belt, 5. Lower connecting member on the synchronous belt, 6. Traveling guide rail, 7. Lifting drive motor, 8. Rotating motor, 9. Lifting tray, 10. Rotating tray, 101. Avoidance groove, 11. Column, 111. Mounting plate, 112. Bottom plate, 113. Vertical rib, 114. Top plate, 12. Flipping drive motor, 13. Flipping gripper, 131. Gripper base, 132. Telescopic cylinder, 133. Clamping plate, 14. Proximity sensor, 15. Induction bracket, 16. Spline sleeve, 17. Synchronous belt pulley, 18. First driven gear, 19. First driving gear, 20. Threaded column, 21. Threaded sleeve, 22. Second driven gear, 23. Second driving gear, 24. Laser cutting head. Detailed implementation manners

[0026] In order 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. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this patent without creative efforts belong to the scope of protection of this patent.

[0027] Embodiment 1 In the following description, the left-right direction in Figure 2 is defined as the X direction, the up-down (vertical) direction as the Z direction, and the direction perpendicular to the paper surface as the Y direction. The X direction, Y direction, and Z direction are perpendicular to each other in pairs.

[0028] As Figure 1 , 2 shown, a box body rotating device includes a base 1, and a vertical flipping assembly and a horizontal rotating assembly are provided on the base 1: As Figure 1 shown, the vertical flipping assembly includes two sets of clamping mechanisms. Each clamping mechanism includes a column 11. The column 11 includes a bottom plate 112. On one side edge of the two bottom plates 112 close to each other, there is a mounting plate 111. The mounting plate 111 is perpendicular to the bottom plate 112 and extends upward. There are also vertical ribs 113 between the two side edges of the mounting plate 111 and the bottom plate 112. There is also a top plate 114 between the top edges of the two vertical ribs 113 and the top edge of the mounting plate 111. In this way, the column 11 forms a three-dimensional panel structure. The two sets of clamping mechanisms can move towards each other in the X direction. Specifically, as Figure 2As shown in the figure, two sets of walking guide rails 6 are provided on the base 1. The walking guide rails 6 are arranged along the X direction. The lower bottom plates 112 of the columns 11 in the two clamping mechanisms are respectively installed on the two sets of walking guide rails 6, and the columns 11 can slide along the corresponding walking guide rails 6. The lower part of the base 1 is a frame structure. In the lower frame of the base 1, synchronous belt pulleys 17 are installed at both ends in the X direction. The rotating shafts of the synchronous belt pulleys 17 are arranged along the Y direction. A walking synchronous belt 3 is jointly wound around the two synchronous belt pulleys 17. Under the tensioning action of the two synchronous belt pulleys 17, the walking synchronous belt 3 has two flat sections, upper and lower. A synchronous belt upper connecting member 4 is installed at the bottom of the bottom plate 112 of one of the columns 11, and a synchronous belt lower connecting member 5 is installed at the bottom of the bottom plate 112 of the other column 11. The lower end of the synchronous belt upper connecting member 4 is connected to the upper flat section of the walking synchronous belt 3, and the lower end of the synchronous belt lower connecting member 5 is connected to the lower flat section of the walking synchronous belt 3. Moreover, when the two columns 11 move away from each other, the synchronous belt upper connecting member 4 and the synchronous belt lower connecting member 5 are respectively located at positions close to the two synchronous belt pulleys 17. One of the synchronous belt pulleys 17 is connected to a walking motor 2. Thus, when the walking motor 2 operates, it drives the synchronous belt pulley 17 to rotate, and then the walking synchronous belt 3 runs. During the running process of the walking synchronous belt 3, the moving directions of the upper flat section and the lower flat section are opposite. At this time, the synchronous belt upper connecting member 4 and the synchronous belt lower connecting member 5 move towards or away from each other. When the synchronous belt upper connecting member 4 and the synchronous belt lower connecting member 5 move towards each other, the two columns 11 move closer to each other. When the synchronous belt upper connecting member 4 and the synchronous belt lower connecting member 5 move away from each other, the two columns 11 move away from each other.

[0029] At the upper ends of the opposite sides of the two columns 11, flipping jaws 13 are respectively provided. Specifically, the flipping jaws 13 are rotatably installed on the mounting plate 111 through a rotating shaft, and the two flipping jaws 13 are arranged opposite to each other in the X direction. As Figure 1 、 2 shown, the flipping jaw 13 includes a jaw base 131. The jaw base 131 is in a groove shape. The openings of the two jaw bases 131 are arranged opposite to each other in the X direction (i.e., the groove bottom surface is in the Y-Z plane). Two telescopic cylinders 132 are arranged opposite to each other in the groove. The cylinder rod ends of the two telescopic cylinders 132 are respectively installed with clamping plates 133. The clamping plates 133 are L-shaped, including a first panel and a second panel that are perpendicular to each other. The first panel is parallel to the groove bottom of the jaw base 131 and is connected to the cylinder rod of the telescopic cylinder 132. The second panel is opposite to the first panel and extends towards the side away from the jaw base 131. In the same flipping jaw 13, the two second panels are parallel and facing each other. When the two telescopic cylinders 132 operate, the two clamping plates 133 move closer to or away from each other. When the two clamping plates 133 move closer to each other, the two second panels can clamp the two side surfaces of the box body. When the two clamping plates 133 move away from each other, the two second panels release the clamping of the box body.

[0030] In each clamping mechanism, the jaw base 131 is rotatably connected to the mounting plate 111, and a first driven gear 18 is provided on the groove bottom surface of the jaw base 131; on the side of the mounting plate 111 facing away from the flipping jaw 13, a flipping drive motor 12 is mounted. The output shaft of the flipping drive motor 12 passes through the mounting plate 111 and is provided with a first driving gear 19, and the first driving gear 19 meshes with the first driven gear 18. Thus, when the flipping drive motor operates, the first driving gear on its output shaft rotates accordingly. Through the meshing transmission with the first driven gear, it drives the flipping jaw to rotate in the vertical plane around the rotating shaft. When performing the flipping operation on the box body, according to the processing requirements, the rotation angle and direction of the flipping drive motor are controlled, so that the flipping jaw drives the box body to flip to a suitable processing position.

[0031] As Figure 2 、 3 shown, the horizontal rotation assembly is located at the middle position between the two clamping mechanisms. The horizontal rotation assembly includes a lifting mechanism and a rotation mechanism: The lifting mechanism includes a threaded sleeve 21, the threaded sleeve 21 is rotatably mounted on the base 1, the threaded sleeve 21 is connected to a lifting drive motor 7, the lifting drive motor 7 can drive the threaded sleeve 21 to rotate, and a threaded column 20 is installed in the threaded sleeve 21 by screw fit. A rotation limiting mechanism is provided at the lower end of the threaded column 20, and the rotation limiting mechanism is used to limit the rotation of the threaded column 20. Thus, when the threaded sleeve 21 rotates, the threaded column 20 moves up and down because it cannot follow the rotation of the threaded sleeve 21. In this embodiment, the rotation limiting mechanism can adopt the form of a spline. That is, the rotation limiting mechanism includes a spline sleeve 16, the lower end of the spline sleeve 16 is fixedly mounted on the base 1, the lower end of the threaded column 20 has a spline section, the spline section is located below the threaded sleeve 21, and the spline section is inserted and matched with the spline sleeve 16. Thus, because of the shape matching between the spline section and the inner hole of the spline sleeve 16, the threaded column 20 can only move up and down relative to the spline sleeve 16 and cannot rotate relative to it. Further, when the threaded sleeve 21 rotates, the threaded column 20 moves up and down. Further, a position sensing mechanism is provided between the lifting tray 9 and the base 1, including a proximity sensor 14 and a sensing bracket 15. As Figure 2 、 3 shown, in this embodiment, the proximity sensor 14 is arranged on the bottom surface of the lifting tray 9, and its detection direction is horizontally arranged. The sensing bracket 15 is an L-shaped plate structure. The horizontal part of the sensing bracket 15 is connected to the top surface of the base 1, and the vertical part is perpendicular to the top surface of the base 1. When the lifting tray 9 descends to the lowest position, the vertical part of the sensing bracket 15 blocks the front of the proximity sensor 14, thereby triggering it.

[0032] The rotating mechanism is installed on the lifting tray 9 at the upper end of the threaded column 20, and includes a rotating tray 10 and a rotating motor 8. The rotating tray 10 is rotatably installed above the lifting tray 9. A second driven gear 22 is installed at the bottom surface rotating shaft of the rotating tray 10. The rotating motor 8 is installed on the bottom surface of the lifting tray 9. The output shaft of the rotating motor 8 passes through the lifting tray 9 and is installed with a second driving gear 23. The second driving gear 23 meshes with the second driven gear 22. In this way, when the rotating motor 8 operates, the second driven gear 22 is driven by the second driving gear 23, and then the rotating tray 10 is driven to rotate. The rotating tray 10 is used to support the box workpiece to be processed, and its rotation plane is the X-Y plane (i.e., the horizontal plane). Further, as Figure 6 shown, at the midpoint positions of the four edges of the rotating tray 10, avoiding grooves 101 are provided. Since the flipping gripper 13 clamps the box and rotates it, and after rotation, the box is placed back on the rotating tray 10. If the box is small, the clamping plate 133 may be within the area of the rotating tray 10. Therefore, the avoiding grooves 101 are provided at the position of the clamping plate 133 to enable the clamping plate 133 to withdraw smoothly.

[0033] Embodiment 2 As Figure 7 shown, this embodiment further provides a box laser cutting system, including a laser cutting machine and the box rotating device provided in Embodiment 1. The laser cutting machine can adopt an existing three-axis moving laser cutting machine with a bed-beam-head module structure, which is prior art and will not be elaborated here. The laser cutting head 24 of the laser cutting machine is located above the rotating tray 10 of the box rotating device (for clearly showing the position of the laser cutting head and the box rotating device, the bed and beam components are not shown in the figure).

[0034] Let the dimensional values of the length, width, and height of the box workpiece be a, b, and c respectively, where the longest side of the workpiece is denoted as a, the shortest side of the workpiece is denoted as c, and the other side is denoted as b; let the moving stroke of the laser cutting head in the Z direction be h, the maximum lifting stroke of the lifting driving motor 7 be j, the distance from the lowest point of the laser cutting head to the rotation center of the flipping gripper be set as e1, and the distance from the highest point of the rotating tray in the raised state to the rotation center of the flipping gripper be set as e2. The total height stroke is set as l. l is the distance from the nozzle of the laser cutting head to the rotating tray when the laser cutting head stays at the highest point and the screw jack stays at the lowest point: l = h + c + e1 + e2; The distance f that the left and right two columns 11 move simultaneously is: e1 + e2 ≤ c; h + j ≥ √(a² + b²); f ≥ √(a² + b²).

[0035] Embodiment 3 Based on the box laser cutting system of Embodiment 2, this embodiment provides a box laser cutting and processing method. In the following description, the direction definitions in Embodiment 1 are followed. This method includes the following steps: S1. Preparation for processing: Place the box on the rotating tray. The two clamping mechanisms are in the farthest position, the rotating mechanism is in the lowest position, and the laser cutting head 24 is in the uppermost position of the stroke. Import the length, width, and height dimensions of the box and the serial number of the cutting pattern into the industrial control computer of the box laser cutting system. The serial number of the cutting pattern corresponds to multiple faces and / or edges of the box. S2. Start processing: The lifting drive motor 7 drives the lifting tray 9 and the rotating tray 10 to rise, and at the same time, the laser cutting head 24 descends, so that the position of the box is just right for the laser cutting head 24 to cut the top surface of the box. The laser cutting machine drives the laser cutting head 24 to move according to the set cutting pattern and performs cutting processing on the top surface. S3. Switching of the processed surface, including: S3-1. Switching to edge processing. The laser cutting head 24 rises to the highest point, the walking motor 2 operates, and drives the two clamping mechanisms to approach each other through the synchronous belt pulley 17 and the walking synchronous belt 3 until the flipping jaws 13 just contact the box. The telescopic cylinder 132 drives the clamping plate 133 to clamp the box. Then the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to descend to the lowest position, and the flipping drive motor 12 drives the flipping jaws 13 to rotate by a first set angle to make an edge of the box face upward. Or, S3-2. Switching to processing the other surface in the Y direction. The laser cutting head 24 rises to the highest point, the walking motor 2 operates, and drives the two clamping mechanisms to approach each other through the synchronous belt pulley 17 and the walking synchronous belt 3 until the flipping jaws 13 just contact the box. The telescopic cylinder 132 drives the clamping plate 133 to clamp the box. Then the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to descend to the lowest position, and the flipping drive motor 12 drives the flipping jaws 13 to rotate by a second set angle to make the side or bottom surface of the box in the Y direction face upward. The lifting drive motor 7 drives the lifting tray 9 and the rotating tray 10 to rise, the rotating tray 10 supports the box, the telescopic cylinder 132 retracts, the clamping plate 133 loosens the box, and the walking motor 2 drives the two clamping mechanisms to move away from each other. Or, in S3-3, switch to machining the other side in the X direction. Raise the laser cutting head 24 to the highest point. The rotation motor 8 drives the rotary tray 10 to rotate 90°. The traveling motor 2 operates, and through the synchronous belt pulleys 17 and the traveling synchronous belt 3, drives the two sets of clamping mechanisms to approach each other until the flipping jaws 13 just contact the box body. The telescopic cylinder 132 drives the clamping plate 133 to clamp the box body. Then, the lifting drive motor drives the lifting tray 9 and the rotary tray 10 to descend to the lowest position. The flipping drive motor 12 drives the flipping jaws 13 to rotate by a second set angle, so that the side of the box body in the X direction faces upward. The lifting drive motor 7 drives the lifting tray 9 and the rotary tray 10 to ascend. The rotary tray 10 supports the box body. The telescopic cylinder 132 retracts, and the clamping plate 133 releases the box body. The traveling motor 2 drives the two sets of clamping mechanisms to move away from each other; In this step, S3-1, S3-2, and S3-3 can run continuously and alternately to flip the surface or edge to be machined to the top through multiple operations; S4. The laser cutting machine drives the laser cutting head 24 to move according to the set cutting pattern, and cuts and machines the currently upward surface of the box body according to the corresponding cutting pattern; S5. Repeat steps S3 and S4 to complete the cutting and machining of the entire box body.

[0036] The first set angle and the second set angle are determined according to the shape of the box body workpiece. Taking a rectangular box body as an example, the first set angle is 45° or 135°, and the second set angle is 90° or 180°.

[0037] Now, a machining example will be described in detail: First, place the box body workpiece on the rotary tray in the state shown in Figure 1 . In the box body workpiece, define a set of adjacent faces as A1, B1, C1, and the opposite faces of A1, B1, C1 are defined as A2, B2, C2 respectively. The edge sides parallel to f1 are defined as F2, F3, F4 respectively. The edge sides parallel to D1 are defined as D2, D3, D4 respectively. The edge sides parallel to E1 are defined as E2, E3, E4 respectively. Among them, A1, B1, C1, A2, B2, C2, D1, D2, D3, D4, E1, E2, E3, E4 are all surfaces that need to be cut. Import the cutting pattern required for each surface of the box body workpiece and the dimensions of the length, width, and height of the box body workpiece into the laser cutting machine. The serial numbers of the imported patterns and the surfaces A1, B1, C1, A2, B2, C2, D1, D2, D3, D4, E1, E2, E3, E4 that need to be cut are in one-to-one correspondence. Figure 1 is the origin position of the machining system. At this time, each motor and cylinder is at its respective origin, and the laser cutting head stays at the highest point of the stroke.

[0038] After starting the processing, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to a set height. The rising height dimension is set to x1. At the same time, the laser cutting head moves downward. At this time, the dimension of the laser cutting head moving downward is set to x2. The position of the box workpiece can just make the laser cutting head cut the top surface of the box workpiece, and the laser cutting machine cuts the top surface C1 according to the set pattern C1; After the C1 surface cutting is completed, the laser cutting head automatically rises to the highest point. Then, the traveling motor 2 operates, driving the synchronous pulley and the traveling synchronous belt 3 to operate, so that the fixing piece on the synchronous belt and the lower fixing piece on the synchronous belt move, which can drive the two columns 11 to walk towards each other along the traveling guide rail 6 at the same time. The traveling stroke is set to y1 (y1 = f - a / 2). After the traveling is completed, at this time, the columns just move to the position where the flipping jaws contact the box workpiece; After the traveling movement ends, control the flipping jaws 13 to close to clamp the box workpiece. At this time, the state is as Figure 4 shown; The flipping jaws remain clamped, and the lifting drive motor 7 drives the lifting tray 9 and the rotating tray 10 to descend to the origin, which can effectively prevent interference during subsequent movement. The origin is the position where the proximity sensor 14 senses the sensing bracket 15; After the descent is completed, the flipping drive motor 12 drives the flipping jaws 13 and the box workpiece to rotate counterclockwise by 45°, which can make the box workpiece rotate around the X-axis. After the rotation is completed, as Figure 5 shown. At this time, the edge D1 surface is horizontal and facing up; After the 45° flipping is completed, the cylinder continues to clamp, and the laser cutting head descends. The descending height is set to x3. The laser cutting machine cuts the D1 surface according to the set pattern D1. At this time, the flipping jaws need to always maintain the clamping action; After the D1 surface cutting is completed, the laser cutting head automatically rises to the highest point. The flipping drive motor 12 drives the flipping jaws 13 and the box workpiece to rotate counterclockwise by 45° again. After the rotation is completed, the A1 surface is facing up; After the rotation is completed, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to contact the box workpiece at the set height x4. The flipping jaws open, and the box workpiece is placed on the rotating tray 10. The traveling motor 2 drives the columns and the flipping jaws to walk outward at the same time. There is a notch on the rotating tray 10, which can make the flipping jaws withdraw smoothly. The traveling motor 2 drives the columns and the flipping jaws to return to the origin. At this time, the flipping jaws are located at a position 90° relative to the origin. After the flipping jaws rotate back to the origin, the laser cutting head moves downward. At this time, the dimension of the laser cutting head moving downward is set to x5. At this time, the position of the box workpiece can just make the laser cutting head cut the top surface of the box workpiece, and the cutting machine cuts the A1 surface of the box workpiece according to the set pattern; After the cutting of surface A1 is completed, the laser cutting head automatically rises to the highest point, the lifting drive motor lowers to the origin, the traveling motor 2 operates, driving the column 11 to travel inward with a stroke of y1, then the flipping gripper clamps the box workpiece, and the flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by 45°. At this time, surface D2 is horizontal and facing upward, the cylinder continues to clamp, the laser cutting head descends, and the descending height is x3. The laser cutting machine cuts surface D2 according to the set pattern of D2; After the cutting is completed, the laser cutting head automatically rises. Then, the flipping drive motor 12 continues to drive the flipping gripper 13 and the box workpiece to rotate counterclockwise by another 45°. At this time, surface C2 is horizontal and facing upward; After the rotation is completed, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to contact the box workpiece at the set height x1 (x1 = j + e2 - c / 2). The flipping gripper opens, and the box workpiece is placed on the rotating tray 10. The traveling motor 2 drives the column and the flipping gripper to travel outward simultaneously. The flipping gripper retracts to the origin, and the flipping gripper rotates back to the origin. Then the laser cutting head moves downward. At this time, the downward movement dimension of the laser cutting head is set to x2 (x2 = h + e1 - c / 2). At this time, the position of the box workpiece can just make the laser cutting head cut the top surface of the box workpiece. The cutting machine cuts surface C2 of the box workpiece according to the set pattern; After the cutting is completed, the laser cutting head automatically rises, the traveling motor 2 operates, driving the column 11 to travel inward with a stroke of y1, then the flipping gripper clamps the box workpiece, and the flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by 45°. At this time, surface D3 is horizontal and facing upward, the cylinder continues to clamp, the laser cutting head descends, and the descending height is x3 (x3 = h - 1 / 2 * √(c² + b²) + e1). The laser cutting machine cuts surface D3 according to the set pattern of D3; After the cutting is completed, the laser cutting head automatically rises, and the flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by another 45°. At this time, surface A2 is horizontal and facing upward; After the rotation is completed, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to contact the box workpiece at the set height x4 (x4 = j + e2 - b / 2). The flipping gripper opens, and the box workpiece is placed on the rotating tray 10. The traveling motor 2 drives the column and the flipping gripper to travel outward simultaneously. The flipping gripper retracts to the origin, and the flipping gripper rotates back to the origin. The laser cutting head moves downward. At this time, the downward movement dimension of the laser cutting head is set to x5 (x5 = h + e1 - b / 2). At this time, the position of the box workpiece can just make the laser cutting head cut the top surface of the box workpiece. The cutting machine cuts surface A2 of the box workpiece according to the set pattern; After cutting is completed, the laser cutting head automatically rises. The flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by 45°. At this time, the D4 surface is horizontal and facing up, and the cylinder continues to clamp. The laser cutting head descends by a height of x3, and the laser cutting machine cuts the D4 surface according to the set pattern of D4. After cutting is completed, the laser cutting head automatically rises. The flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by another 45°. At this time, the state of the box workpiece returns to the initial state. The traveling motor 2 drives the column and the flipping gripper to move outward simultaneously. The flipping gripper retracts to the origin, and the flipping gripper rotates back to the origin.

[0039] At this time, the C1, D1, A1, D2, C2, D3, A2, and D4 surfaces have been cut in sequence.

[0040] The rotation motor 8 moves and rotates counterclockwise by 90°, enabling the box workpiece to rotate around the Z-axis. At this time, the B1 surface faces forward. Repeating the above actions again can achieve the cutting of the E1, B1, E2, and E3, B2, E4 surfaces: The traveling motor drives the column and the flipping gripper to move inward by a stroke of y2 (y2 = f - b / 2). The flipping gripper tightens to clamp the box workpiece. The flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by 45°. At this time, the E1 surface is horizontal and facing up, and the cylinder continues to clamp. The laser cutting head descends by a height of x6 (x6 = h - 1 / 2 * √(c² + a²) + e1), and the laser cutting machine cuts the E1 surface according to the set pattern of E1. After cutting is completed, the laser cutting head automatically rises. Then, the flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by another 45°. At this time, the B1 surface is horizontal and facing up. After rotation is completed, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to contact the box workpiece at a set height of x7 (x7 = j + e2 - a / 2). The flipping gripper opens, and the box workpiece is placed on the rotating tray 10. The traveling motor 2 drives the column and the flipping gripper to move outward simultaneously. The flipping gripper retracts to the origin, and the flipping gripper rotates back to the origin. The laser cutting head moves downward. At this time, the downward movement dimension of the laser cutting head is set to x8 (x8 = h + e1 - a / 2). At this time, the position of the box workpiece can just enable the laser cutting head to cut the top surface of the box workpiece, and the cutting machine cuts the B1 surface of the box workpiece according to the set pattern. After cutting is completed, the laser cutting head automatically rises. The traveling motor drives the column and the flipping gripper to move inward by a stroke of y2. The flipping drive motor 12 drives the flipping gripper 13 and the box workpiece to rotate counterclockwise by 45°. At this time, the D3 surface is horizontal and facing up, and the cylinder continues to clamp. The laser cutting head descends by a height of x3, and the laser cutting machine cuts the E2 surface according to the set pattern of E2. After cutting is completed, the laser cutting head automatically rises. The flipping drive motor 12 drives the flipping jaws and the box workpiece to rotate counterclockwise by 90°. At this time, the E3 surface is horizontally upward, the cylinder continues to clamp, the laser cutting head descends, and the descending height is x3. The laser cutting machine cuts the E3 surface according to the set pattern of E2. After cutting is completed, the laser cutting head automatically rises. Then, the flipping drive motor 12 drives the flipping jaws 13 and the box workpiece to rotate counterclockwise by another 45°. At this time, the B2 surface is horizontally upward. After rotation is completed, the lifting drive motor drives the lifting tray 9 and the rotating tray 10 to rise to contact the box workpiece at the set height x7. The flipping jaws open, and the box workpiece is placed on the rotating tray 10. The traveling motor 2 drives the column and the flipping jaws to move outward simultaneously. The flipping jaws retract to the origin, and the flipping jaws rotate back to the origin. The laser cutting head moves downward. At this time, the downward movement dimension of the laser cutting head is set to x8. At this time, the position of the box workpiece can just enable the laser cutting head to cut the top surface of the box workpiece. The cutting machine cuts the B2 surface of the box workpiece according to the set pattern. After cutting is completed, the laser cutting head rises to the highest point. The traveling motor drives the column and the flipping jaws to move inward with a stroke of y2. Then, the flipping drive motor 12 drives the flipping jaws and the box workpiece to rotate counterclockwise by 90°. At this time, the E4 surface is horizontally upward, the cylinder continues to clamp, the laser cutting head descends, and the descending height is x3. The laser cutting machine cuts the E4 surface according to the set pattern of E2. After cutting is completed, the flipping jaws control the box workpiece to rotate clockwise by 45° again. The lead screw lifting motor rises with a stroke of x7 to support the box workpiece. The traveling motor controls the flipping jaws to move outward and return to the origin, and the flipping jaws rotate back to the origin. At this time, the B2 surface of the box workpiece is horizontally upward, and the C1 surface is facing forward. The rotating motor 8 rotates counterclockwise by 90° again. At this time, the A2 surface is facing forward. The traveling motor controls the column and the flipping jaws to move inward with a stroke of y3 (y3 = f - c / 2). Then, the flipping jaws control the box workpiece to rotate counterclockwise by 45° again. The F3 surface is upward. The laser cutting head descends with a stroke of x9 (x9 = h - 1 / 2*√(b² + a²) + e1) and cuts the F3 surface according to the set pattern. After cutting is completed, the laser cutting head rises to the highest point. The flipping jaws control the box workpiece to rotate counterclockwise by 90° again. The F4 surface is upward. The laser cutting head descends with a stroke of x9 and cuts the F4 surface according to the set pattern. After cutting is completed, the laser cutting head rises to the highest point, and the flipping gripper controls the box workpiece to flip counterclockwise by 90° again, with the F1 surface facing up. The laser cutting head descends with a stroke of x9 and cuts the F1 surface according to the set pattern. After cutting is completed, the laser cutting head rises to the highest point, and the flipping gripper controls the box workpiece to flip counterclockwise by 90° again, with the F2 surface facing up. The laser cutting head descends with a stroke of x9 and cuts the F2 surface according to the set pattern. After cutting is completed, the laser cutting head rises to the highest point, the flipping gripper controls the box workpiece to flip counterclockwise by 45°, the lifting drive motor rises with a stroke of x5 to support the box workpiece, the traveling motor controls the column and the flipping gripper to return to the origin, and the flipping gripper rotates back to the origin.

[0041] At this time, each surface of the box workpiece has been cut, and the control display screen of the laser cutting machine shows a cutting completion signal.

[0042] As can be seen from the above embodiments, the beneficial effects of the present invention are as follows. The box rotating device of this solution realizes multi-surface and multi-angle displacement of box-shaped workpieces through the vertical flipping component and the horizontal rotating component. In cooperation with the laser cutting machine, continuous processing of multiple surfaces can be completed without frequent manual adjustment, greatly improving the processing efficiency and reducing the processing difficulty and equipment cost. The clamping mechanism driven by the traveling synchronous belt can flexibly adapt to boxes of different sizes, improving versatility. Moreover, the synchronous, accurate and stable movement of the clamping mechanism is ensured through the traveling synchronous belt drive, improving the box positioning and processing accuracy. The flipping drive motor can be precisely controlled to accurately adjust the flipping angle of the box, and the gear drive ensures smooth flipping. The motor is placed at the rear to optimize the equipment layout. The telescopic cylinder and the clamping plate structure realize quick grasping and releasing of the box, improving the work efficiency. The uniform clamping force ensures the stability of the box. The cylinder has a certain elasticity and the clamping pressure can be adjusted, enhancing the applicability of this device. The lifting mechanism can adjust the height of the box as needed, cooperate with the flipping gripper to achieve multi-dimensional displacement, expand the coverage range of the processing surface, and at the same time can avoid the movement space when the box is vertically flipped. The proximity sensor and the induction bracket ensure the safe and reliable operation of the device, and the rotation limit mechanism ensures the lifting accuracy and the stability of the device. Further, the box laser cutting system combines the rotating device with the laser cutting machine. By applying the flipping device, the performance requirements for the laser cutting machine are reduced, and the equipment cost investment is reduced. In the box laser cutting processing method, multiple processing surface switching methods can run continuously and alternately, flexibly meeting the processing requirements of different surfaces and edges of the box, and completing the processing of each surface of the box.

[0043] 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 can be implemented in other embodiments without departing from the spirit or scope of the present 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 box rotating device, comprising a base (1), characterized in that, A vertical flipping assembly and a horizontal rotating assembly are provided on the base (1): The vertical flipping assembly includes two sets of clamping mechanisms. Each clamping mechanism includes a column (11). A flipping jaw (13) is provided at the upper end of the column (11). The flipping jaw (13) is connected to a flipping driving motor (12). The rotation plane of the flipping jaw (13) is a vertical plane. The flipping jaws (13) in the two sets of clamping mechanisms are arranged oppositely, and the two sets of clamping mechanisms can move towards each other; The horizontal rotating assembly is located at the middle position between the two clamping mechanisms. The horizontal rotating assembly includes a rotating mechanism. The rotating mechanism includes a rotating tray (10). The rotating tray (10) is connected to a rotating motor (8). The rotation plane of the rotating tray (10) is a horizontal plane.

2. The box body rotating device according to claim 1, characterized in that, Two sets of walking guide rails (6) are provided on the base (1). The lower ends of the columns (11) in the two sets of clamping mechanisms are respectively installed on the two sets of walking guide rails (6), and the columns (11) can move along the corresponding walking guide rails (6); Along the extending direction of the walking guide rails (6), synchronous belt wheels (17) are respectively provided at both ends of the base (1). A walking synchronous belt (3) is commonly wound around the two synchronous belt wheels (17). The walking synchronous belt (3) has two straight sections. The two columns (11) are respectively fixedly connected to the two straight sections. One of the synchronous belt wheels (17) is connected to a walking motor (2).

3. The casing rotating device according to claim 1, characterized in that, The column (11) includes a mounting plate (111). The mounting plate (111) is located in a vertical plane. The mounting plates (111) of the two columns (11) are parallel and facing each other. The two flipping jaws (13) are respectively installed on the opposite surfaces of the two mounting plates (111) through rotating shafts. The two flipping driving motors (12) are respectively installed on the opposite surfaces of the two mounting plates (111). In each set of clamping mechanism, a first driven gear (18) is provided on the flipping jaw (13). The output shaft of the flipping driving motor (12) passes through the mounting plate (111) and is installed with a first driving gear (19). The first driving gear (19) meshes with the first driven gear (18).

4. The box body rotating device according to claim 1, characterized in that The flipping jaw (13) includes a jaw base (131). The jaw base (131) is rotatably connected to the column (11). Two telescopic cylinders (132) are oppositely arranged on the jaw base (131). Clamping plates (133) are respectively installed at the cylinder rod ends of the two telescopic cylinders (132). In the same flipping jaw (13), the two clamping plates (133) have clamping surfaces that are parallel and facing each other.

5. The box body rotating device according to claim 1, characterized in that, The horizontal rotation assembly further includes a lifting mechanism. The lifting mechanism includes a threaded sleeve (21) rotatably mounted on the base (1). The threaded sleeve (21) is connected to a lifting drive motor (7) which can drive the threaded sleeve (21) to rotate. A threaded column (20) is installed in the threaded sleeve (21) by screw fit. A rotation limiting mechanism is provided at the lower end of the threaded column (20), and a lifting tray (9) is provided at the upper end of the threaded column (20). The rotating tray (10) and the rotating motor (8) are mounted on the lifting tray (9), and the rotating tray (10) is rotatably connected to the lifting tray (9). A second driven gear (22) is provided on the bottom surface of the rotating tray (10). The rotating motor (8) is mounted at the bottom of the lifting tray (9). The output shaft of the rotating motor (8) passes through the lifting tray (9) and is provided with a second driving gear (23) which meshes with the second driven gear (22).

6. The housing rotation device according to claim 5, wherein One of the lifting tray (9) and the base (1) is provided with a proximity sensor (14), and an induction bracket (15) is mounted on the other. When the lifting tray (9) descends to the lowest position, the induction bracket (15) triggers the proximity sensor (14).

7. The casing rotation device according to claim 5, characterized in that, The rotation limiting mechanism includes a spline sleeve (16) fixedly mounted on the base (1). The lower end of the threaded column (20) has a spline section located below the threaded sleeve (21), and the spline section is inserted and mated with the spline sleeve (16).

8. A box laser cutting system, comprising a laser cutting machine, characterized in that, It further includes a box body rotation device according to any one of claims 1-7. The laser cutting head (24) of the laser cutting machine is located above the box body rotation device.

9. A method for laser cutting and processing of a box body, characterized in that, Set the moving direction of the upright column (11) as the X direction, the vertical direction as the Z direction, and the direction perpendicular to the X direction in the horizontal plane as the Y direction. The method includes the following steps: S1. Preparation for processing: Place the box body on the rotating tray. The two clamping mechanisms are at the farthest positions, the rotating mechanism is at the lowest position, and the laser cutting head (24) is at the uppermost position of the stroke. Import the length, width, and height dimensions of the box body and the serial number of the cutting pattern into the industrial control computer of the box body laser cutting system. The serial number of the cutting pattern corresponds to multiple faces and / or edges of the box body. S2. Start processing: The lifting drive motor (7) drives the lifting tray (9) and the rotating tray (10) to rise, and at the same time the laser cutting head (24) descends so that the position of the box body can just allow the laser cutting head (24) to cut the top surface of the box body. The laser cutting machine drives the laser cutting head (24) to move according to the set cutting pattern and performs cutting processing on the top surface. S3. Processing surface switching, including: S3-1. Switch to edge machining. The laser cutting head (24) rises to the highest point, the traveling motor (2) operates, and through the synchronous belt pulley (17) and the traveling synchronous belt (3), the two groups of clamping mechanisms are driven to approach each other until the flipping jaw (13) just contacts the box body. The telescopic cylinder (132) drives the clamping plate (133) to clamp the box body. Then, the lifting drive motor drives the lifting tray (9) and the rotating tray (10) to descend to the lowest position. The flipping drive motor (12) drives the flipping jaw (13) to rotate by a first set angle to make an edge of the box body face upward; Or, S3-2. Switch to machining the other side in the Y direction. The laser cutting head (24) rises to the highest point, the traveling motor (2) operates, and through the synchronous belt pulley (17) and the traveling synchronous belt (3), the two groups of clamping mechanisms are driven to approach each other until the flipping jaw (13) just contacts the box body. The telescopic cylinder (132) drives the clamping plate (133) to clamp the box body. Then, the lifting drive motor drives the lifting tray (9) and the rotating tray (10) to descend to the lowest position. The flipping drive motor (12) drives the flipping jaw (13) to rotate by a second set angle to make the side or bottom surface of the box body in the Y direction face upward. The lifting drive motor (7) drives the lifting tray (9) and the rotating tray (10) to rise. The rotating tray (10) supports the box body. The telescopic cylinder (132) retracts, the clamping plate (133) releases the box body, and the traveling motor (2) drives the two groups of clamping mechanisms to move away from each other; Or, S3-3. Switch to machining the other side in the X direction. The laser cutting head (24) rises to the highest point, the rotating motor (8) drives the rotating tray (10) to rotate 90°. The traveling motor (2) operates, and through the synchronous belt pulley (17) and the traveling synchronous belt (3), the two groups of clamping mechanisms are driven to approach each other until the flipping jaw (13) just contacts the box body. The telescopic cylinder (132) drives the clamping plate (133) to clamp the box body. Then, the lifting drive motor drives the lifting tray (9) and the rotating tray (10) to descend to the lowest position. The flipping drive motor (12) drives the flipping jaw (13) to rotate by a second set angle to make the side surface of the box body in the X direction face upward. The lifting drive motor (7) drives the lifting tray (9) and the rotating tray (10) to rise. The rotating tray (10) supports the box body. The telescopic cylinder (132) retracts, the clamping plate (133) releases the box body, and the traveling motor (2) drives the two groups of clamping mechanisms to move away from each other; S4. The laser cutting machine drives the laser cutting head (24) to move according to the set cutting pattern, and cuts and machines the currently upward surface of the box body according to the corresponding cutting pattern; S5. Repeat steps S3 and S4 to complete the cutting and machining of the entire box body.

10. The method for laser cutting and processing of the box body according to claim 9, characterized in that, In step S3, S3-1, S3-2, and S3-3 can operate continuously and alternately.

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