A numerical control laser pipe cutting device for processing metal shelves in supermarkets

Abstract

The application discloses a numerical control laser pipe cutting device for processing of supermarket metal shelves, and relates to the technical field of metal pipe laser cutting processing equipment. The numerical control laser pipe cutting device for processing of supermarket metal shelves is provided with a single cylinder as the only power source of the whole machine, relies on the position change of the lifting stroke of the rotating disc at different stages, controls the time-sharing corresponding meshing of the rotating gear and the overturning gear with the rack, sequentially completes all processes of the self-rotation of the shelf bent pipe, the overturning of the workpiece and the self-rotation of the workpiece again, and the shelf bent pipe does not need to be manually disassembled in the whole processing process, and the complete cutting processing of the two side end faces can be completed through one-time clamping, the artificial positioning deviation problem caused by the secondary disassembly of the workpiece in the traditional equipment is completely avoided, and the size consistency and assembly precision of the supermarket shelf bent pipe finished product are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment for metal pipes, specifically a CNC laser pipe cutting device for processing metal shelves in supermarkets. Background Technology

[0002] In the metal shelving systems of supermarket warehouses and supermarket retail stores, L-shaped metal bends are widely used as shelving connection and load-bearing support components. Both ends of these L-shaped shelving bends need to undergo high-precision laser circumferential cutting to ensure the assembly and matching accuracy of the bends with the shelving uprights and beams. This is the core process in shelving profile processing.

[0003] Currently, the industry mainly uses conventional CNC laser tube cutting machines for laser cutting of the curved end faces of shelving. However, conventional CNC laser tube cutting machines do not have an automatic workpiece flipping mechanism and can only complete the cutting of one side of the tube end face in one go. When processing L-shaped shelving tubes, after completing the circumferential cutting of one end face, the tube must be manually disassembled and manually turned around and re-clamped before the other end can be processed. The manual re-clamping will cause uncontrollable positioning offset, resulting in poor coaxiality and dimensional consistency of the two ends of the tube. This leads to problems such as assembly jamming and uneven gaps during subsequent shelving assembly. At the same time, manual disassembly and turning operations consume a lot of time and are difficult to adapt to the processing needs of large-scale continuous production of supermarket shelving. Summary of the Invention

[0004] The purpose of this invention is to provide a CNC laser tube cutting device for processing metal shelves in supermarkets, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a CNC laser tube cutting device for processing supermarket metal shelves, comprising a housing, a composite motion component fixed to the inner wall of the housing cavity, the composite motion component including a template mounted on the inner wall of the housing cavity, support columns fixed at the four corners of the back of the template, and the end of the support column away from the template fixed to the inner wall of the housing cavity, a limiting groove hollowed out in the middle of the template, and guide rails symmetrically fixed at both ends of the opening of the limiting groove on the front, a flipping rack fixed in the middle of the side of the template on the front, and rotating racks fixed at both ends of the side of the template on the back, a guide hole opened in the middle of the top of the template, and a cylinder bolted to the middle of the bottom of the template, and a telescopic rod fixedly connected to the telescopic end of the cylinder.

[0006] Furthermore, a rotary drive assembly is installed inside the template. The rotary drive assembly includes a turntable that slides vertically inside the limiting groove. A toothed ring is coaxially fixed on the outer periphery of the turntable, and the toothed ring is limited and engaged with the middle step of the limiting groove. The bottom end of the outer periphery of the toothed ring is connected to the output end of the telescopic rod.

[0007] Furthermore, the rotary drive assembly also includes a linkage rod installed at the top of the outer periphery of the gear ring. A guide sleeve is sleeved in the middle of the vertical section of the L-shaped structure of the linkage rod, and the guide sleeve is fixedly embedded in the guide hole.

[0008] Furthermore, the rotary drive assembly also includes slot plates fixedly installed at both ends of the front side of the turntable, and a rotary gear is coaxially fixed on the back side of the turntable, and the rotary gear meshes with the rotary racks at both ends near the template side for transmission.

[0009] Furthermore, a flip drive assembly is installed on the front of the template. The flip drive assembly includes brackets disposed on both sides of the opening of the limiting groove. The base of the brackets slides with the corresponding guide rails on both sides via a slider, and the brackets on both sides move up and down synchronously with the turntable.

[0010] Furthermore, the flipping drive assembly also includes a drive shaft rotatably mounted inside a support on one side. A fixing plate is fixed to the inner end of the drive shaft, and a flipping gear is fixed to the outer end of the drive shaft. The flipping gear meshes with a flipping rack located in the middle of the side of the template.

[0011] Furthermore, the flipping drive assembly also includes a threaded rod that is limited and assembled inside the other side bracket. The inner end of the threaded rod is rotatably connected to a movable clamping plate, and the curved clamping surface of the movable clamping plate and the fixed clamping plate clamps the shelf bend. The outer end of the threaded rod is threadedly connected to a threaded wrench, and the threaded wrench is limited and assembled outside the assembly hole on the end face of the bracket.

[0012] Furthermore, the shelf bend can rotate circumferentially between the arc-shaped clamping surfaces of the movable clamping plate and the fixed clamping plate, and one end of the shelf bend is engaged with the corresponding slot plate. When the turntable is raised and lowered at the upper and lower ends of the limiting groove, the turntable rotates circumferentially and synchronously drives the trimming end face of one side of the shelf bend to rotate synchronously through the meshing transmission of the rotating gear and the rotating racks on both sides of the back of the template.

[0013] Furthermore, when the turntable descends to the middle position of the template within the limiting groove, the rotating gear disengages from the rotating rack and is driven by the rotating gear engaging with the rotating rack in the middle of the front of the template, causing the shelf bend to flip and switch to the other end face, and the other end face of the shelf bend to engage with the corresponding slot plate.

[0014] Furthermore, a lifting clamp is fixed to the top of the opening of the outer shell, and a lifting rod is vertically raised and lowered inside the lifting clamp. The top side of the lifting rod is fixed to the end of the L-shaped structure of the linkage rod, and a connector is fixed to the bottom side of the lifting rod. A laser cutting head is bolted to the end of the connector, and the laser cutting head is located on the outer periphery of the shelf bend. It cooperates with the circumferential rotation of the shelf bend to achieve end face cutting while avoiding interference with the flipping stroke of the shelf bend when switching to repair the end face.

[0015] This invention provides a CNC laser tube cutting device for processing metal shelves in supermarkets, which has the following beneficial effects; 1. This application uses only a single cylinder as the sole power source for the entire machine. By relying on the positional changes of the turntable at different stages of its lifting stroke, the rotating gear and the flipping gear are controlled to mesh with the matching rack in a time-sharing manner. This completes all the processes of the shelf bend rotation, workpiece flipping, and workpiece re-rotation in sequence. The shelf bend does not require manual disassembly during the entire processing. The complete cutting and processing of both end faces can be completed with only one clamping. This completely avoids the problem of manual positioning deviation caused by the secondary disassembly and assembly of workpieces in traditional equipment, and effectively improves the dimensional consistency and assembly accuracy of the finished supermarket shelf bend.

[0016] 2. This application features a clear segmented mechanism sequence. When the turntable is in the upper section of the limiting groove, the workpiece rotation cutting is completed. When the turntable moves to the middle section of the limiting groove, the workpiece flipping process is performed. When the turntable moves to the lower section of the limiting groove, the secondary cutting of the other end face is completed. The laser cutting head only follows the turntable in vertical up-and-down movement and will not enter the workpiece flipping movement stroke to cause interference. The working paths of each moving part of the whole machine do not interfere with each other. At the same time, a pure mechanical transmission structure with linkage rod and lifting rod is adopted. During the descent of the turntable, the laser cutting head can be pulled down synchronously, which can ensure that the distance between the laser focus and the end face of the tube remains constant throughout the cutting process, thus ensuring the laser cutting accuracy.

[0017] 3. The clamping mechanism of this application only provides radial limiting for the bent tube of the shelf and will not interfere with the rotation of the end face of the bent tube to be processed. The rotation of the turntable relies on the upper and lower sets of slot plates to engage different ends of the bent tube to drive the tube to rotate, thereby driving the current end face to be processed to complete circumferential rotation. During the workpiece flipping process, the bent tube of the shelf can automatically switch from one slot plate to the other under the transmission action of the clamping mechanism, providing a stable limiting basis for the next round of tube rotation cutting. The actions of the entire mechanism are clearly connected and the mechanism runs smoothly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from a template perspective; Figure 3 This is a schematic diagram of the structure of the present invention from a template perspective. Figure 4 This is a schematic diagram of the template-based split structure of the present invention; Figure 5 This is a schematic diagram of the composite motion component structure of the present invention; Figure 6 This is a schematic diagram of the flip drive component structure of the present invention; Figure 7 This is a schematic diagram of the rotary drive component structure of the present invention.

[0019] In the diagram: 1. Outer shell; 2. Composite motion assembly; 201. Backing template; 202. Support column; 203. Limiting groove; 204. Guide rail; 205. Tilting rack; 206. Rotating rack; 207. Guide hole; 208. Cylinder; 209. Telescopic rod; 3. Rotary drive assembly; 301. Turntable; 302. Gear ring; 303. Linkage rod; 304. Guide sleeve; 305. Slot plate; 306. Rotating gear; 4. Tilting drive assembly; 401. Bracket; 402. Drive shaft; 403. Fixed clamping plate; 404. Tilting gear; 405. Threaded rod; 406. Movable clamping plate; 407. Shelf bend; 408. Threaded wrench; 5. Lifting clamping plate; 6. Lifting rod; 7. Connector; 8. Laser cutting head. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention. Please see Figures 4 to 5 This invention provides a technical solution: a CNC laser tube cutting device for processing supermarket metal shelves, comprising a housing 1, a composite motion component 2 fixed to the inner wall of the cavity of the housing 1, the composite motion component 2 including a template 201 installed on the inner wall of the cavity of the housing 1, support columns 202 fixed at the four corners of the back of the template 201, and the end of the support column 202 away from the template 201 fixed to the inner wall of the cavity of the housing 1, a limiting groove 203 hollowed out in the middle of the template 201, and guide rails 204 symmetrically fixed at both ends of the opening on the front of the limiting groove 203, a flip rack 205 fixed in the middle of the side of the template 201 on the front, and a rotating rack 206 fixed at both ends of the side of the template 201 on the back, a guide hole 207 opened in the middle of the top of the template 201, and a cylinder 208 bolted to the middle of the bottom of the template 201, and a telescopic rod 209 fixedly connected to the telescopic end of the cylinder 208; The specific operation is as follows: This application sets up an integrated composite motion component 2, which relies on the integrated limit groove 203, the upper and lower rotating racks 206, the middle flipping rack 205, and the guide rails 204 on both sides as the unified installation benchmark for all motion mechanisms. It is equipped with a single cylinder 208 and a telescopic rod 209 as the only power output unit of the whole set of equipment. There is no need to set up independent support and transmission base for workpiece lifting, rotation, and flipping. The gear and rack time-sharing engagement logic is realized by the segmented stroke of the limit groove 203. It can simultaneously carry the rotating drive component 3 and the flipping drive component 4 to lift and move synchronously along the guide rail 204. This greatly reduces the number of parts of the independent support 401 and the mounting base of the whole machine, simplifies the equipment assembly process, unifies the motion benchmark of each moving part, avoids the cumulative positioning error caused by the separate assembly of multi-module components, and can realize the entire process of workpiece lifting, rotation, and flipping by relying on the power of a single cylinder 208. This effectively reduces the number of power components and the complexity of the supporting electrical control program of the whole machine. Please see Figure 4 and Figure 7 A rotary drive assembly 3 is installed inside the template 201. The rotary drive assembly 3 includes a turntable 301 that slides vertically inside the limiting groove 203. A gear ring 302 is coaxially fixed on the outer periphery of the turntable 301. The gear ring 302 is limited and engaged with the middle step of the limiting groove 203. The bottom of the outer periphery of the gear ring 302 is connected to the output end of the telescopic rod 209. The rotary drive assembly 3 also includes a linkage rod 303 installed on the top of the outer periphery of the gear ring 302. A guide sleeve 304 is sleeved in the middle of the vertical section of the L-shaped structure of the linkage rod 303. The guide sleeve 304 is fixedly embedded in the guide hole 207. The rotary drive assembly 3 also includes a slot plate 305 fixedly installed on both ends of the front of the turntable 301. A rotary gear 306 is coaxially fixed on the back of the turntable 301. The rotary gear 306 meshes with the rotary rack 206 at both ends of the side of the template 201. The specific operation is as follows: The rotary drive component 3, which is independently designed in this application, uses a turntable 301 with two sets of upper and lower slot plates 305 to mesh with a coaxial rotary gear 306, a gear ring 302 structure and a rotary rack 206 of the composite motion component 2 to achieve the rotation of the turntable 301. The upper and lower slot plates 305 can respectively clamp the two ends of the shelf bend 407. During the rotation of the turntable 301, the slot plates 305 drive the current end face of the shelf bend 407 to complete the circumferential rotation synchronously. The clamping mechanism only limits the radial movement of the tube and does not hinder the tube from rotating synchronously with the turntable 301. After the workpiece flipping process is completed, the end of the shelf bend 407 can automatically switch from the upper slot plate 305 to the lower slot plate 305, providing a stable coaxial positioning basis for the rotary circumferential cutting of the other end face. The concentricity of the bend end face rotation is guaranteed throughout the process, avoiding shaking and offset during end face cutting, and significantly improving the flatness and dimensional accuracy of the circumferential cutting of the shelf bend 407 end face. Please see Figure 4 and Figure 6 A flip drive assembly 4 is installed on the front of the template 201. The flip drive assembly 4 includes brackets 401 set on both sides of the opening of the limiting groove 203. The base of the brackets 401 slides with the corresponding guide rails 204 on both sides through a slider, and the two brackets 401 move up and down synchronously with the turntable 301. The flip drive assembly 4 also includes a drive shaft 402 rotatably mounted inside one of the brackets 401. A fixed clamping plate 403 is fixed to the inner end of the drive shaft 402, and a flip gear 404 is fixed to the outer end of the drive shaft 402. The flip gear 404 meshes with a flip rack 205 in the middle of the side of the template 201. The flip drive assembly 4 also includes a threaded rod 405 limited and mounted inside the other bracket 401. A movable clamping plate 406 is rotatably connected to the inner end of the threaded rod 405, and a shelf bend 407 is clamped between the arc-shaped clamping surfaces of the movable clamping plate 406 and the fixed clamping plate 403. A threaded wrench 408 is threadedly connected to the outer end of the threaded rod 405. Furthermore, the threaded wrench 408 is positioned on the outside of the mounting hole on the end face of the bracket 401. The shelf bend 407 can rotate circumferentially between the opposing arc-shaped clamping surfaces of the movable clamping plate 406 and the fixed clamping plate 403. One end of the shelf bend 407 is engaged with the corresponding slot plate 305. When the turntable 301 is raised and lowered at both ends of the limiting groove 203, the turntable 301 rotates circumferentially through the meshing transmission between the rotating gear 306 and the rotating racks 206 on both sides of the back of the template 201. The rotating and synchronously driving the trimming end face on one side of the shelf bend 407 to rotate synchronously, when the turntable 301 is located in the limiting groove 203 and descends to the middle position of the template 201, at this time the rotating gear 306 disengages from the rotating rack 206, and through the meshing transmission of the flipping gear 404 and the flipping rack 205 in the middle of the front of the template 201, the shelf bend 407 flips and switches to the trimming end face on the other side, and the other end face of the shelf bend 407 is engaged in the corresponding position of the slot plate 305. The specific operation is as follows: This application sets up an independent flip drive component 4 to adapt to the workpiece switching process. The two side supports 401 slide with the guide rail 204 of the composite motion component 2 through the slider, and can complete the entire lifting and lowering motion synchronously with the turntable 301. The automatic flipping of the shelf bend 407 is achieved by the flip gear 404 on the outside of the transmission shaft 402 meshing with the flip rack 205 in the middle of the template 201. There is no need to configure an additional independent flip drive motor. The workpiece end face switching can be completed by relying on the power of the single cylinder 208 of the whole machine. At the same time, the adjustable arc clamping structure is formed by the threaded wrench 408, the telescopic threaded rod 405, the fixed clamping plate 403, and the movable clamping plate 406. It can adapt to L-shaped supermarket shelf bends 407 with various pipe diameters. The clamping only plays a radial limiting role on the pipe and will not interfere with the pipe's rotation. The workpiece does not need to be manually disassembled and turned over throughout the process. The end face processing of both ends can be completed in one clamping, completely eliminating the positioning deviation caused by manual secondary clamping, expanding the range of shelf profile specifications that the equipment can adapt to, and improving the consistency of processing. Please see Figures 1 to 3 The top of the opening of the outer shell 1 is fixed with a lifting clamp 5, and a lifting rod 6 is vertically lifted inside the lifting clamp 5. The top side of the lifting rod 6 is fixed to the end of the L-shaped structure of the linkage rod 303, and a connector 7 is fixed to the bottom side of the lifting rod 6. A laser cutting head 8 is bolted to the end of the connector 7. The laser cutting head 8 is located on the outer periphery of the shelf bend 407. It cooperates with the circumferential rotation of the shelf bend 407 to achieve end face cutting while avoiding interference with the flipping stroke of the shelf bend 407 when switching to repair the end face. The specific operation is as follows: This application sets up a laser cutting head 8 with mechanical linkage to the turntable 301 and a follow-up lifting structure. The lifting rod 6 is rigidly connected to the L-shaped linkage rod 303 at the top of the turntable 301. The lifting rod 6 slides vertically along the lifting clamp 5 at the top of the outer shell 1. When the turntable 301 is raised and lowered with the cylinder 208 and the telescopic rod 209, it can pull the laser cutting head 8 to move synchronously. This can ensure that the relative distance between the laser cutting head 8 and the end face to be processed of the shelf bend 407 is constant throughout the cutting process. The laser focus always falls stably on the end face of the pipe being cut. The laser cutting head 8 only completes the lifting and lowering movement in the vertical direction. The movement trajectory completely avoids the rotation movement of the shelf bend 407. There is no interference or collision risk in the movement of each component, which improves the processing quality of the finished end face of the shelf bend 407.

[0021] In summary, the specific working process of this device is as follows: First, before processing, one end of the L-shaped shelf bend 407 is snapped into the slot plate 305 above the turntable 301 to complete the end pre-limiting. Then, the main body of the shelf bend 407 is placed between the fixed clamping plate 403 and the movable clamping plate 406 of the flip drive assembly 4. The operator turns the threaded wrench 408, which drives the threaded rod 405 to extend and retract axially inside one side bracket 401, pushing the movable clamping plate 406 closer to the fixed clamping plate 403. The goods are then held together by the arc-shaped clamping surfaces of the two clamping surfaces. The curved tube 407 forms a radial limiting clamp. The two side supports 401 slide with the guide rail 204 of the template 201 through the slider, and can move up and down synchronously with the turntable 301 along the limiting groove 203. The laser cutting head 8 is fixed to the bottom of the lifting rod 6 through the connector 7. The lifting rod 6 is vertically slidably assembled in the lifting clamp 5 at the top of the outer shell 1. The top of the lifting rod 6 is fixed to the end of the L-shaped linkage rod 303 above the turntable 301. At this time, the laser cutting head 8 is arranged on the outside of the end face to be cut of the curved tube 407. Secondly, cylinder 208 is activated, and telescopic rod 209 pulls turntable 301 vertically downward along the limiting groove 203 of template 201. Rotating gear 306, which is coaxially fixed on the back of turntable 301, meshes with rotating racks 206 at both ends of the back of template 201. Turntable 301 rotates circumferentially during descent. The slot plate 305 above turntable 301 drives the curved tube 407 of the shelf to rotate synchronously, so that the end face to be cut of the curved tube can achieve circumferential rotation. At the same time, linkage rod 303 at the top of turntable 301 descends synchronously with turntable 301, pulling lifting rod 6 to drive laser cutting head 8 to move down synchronously. Laser cutting head 8 outputs laser beam, which, together with auxiliary gas sprayed by coaxial nozzle, performs circumferential cutting on the end face of the curved tube 407 in the rotating state, completing the laser cutting processing of one side end face of curved tube 407. Then, when the turntable 301 descends to the middle position of the limiting groove 203, the rotating gear 306 disengages from the rotating rack 206, and the turntable 301 stops rotating. At this time, the bracket 401 descends synchronously to the middle height of the template 201. The flipping gear 404 on the outside of the drive shaft 402 meshes with the flipping rack 205 in the middle of the front of the template 201. The turntable 301 continues to move downward, and the flipping gear 404 rolls and rotates along the flipping rack 205, driving the drive shaft 402, the fixed clamping plate 403 and the shelf bend 407 to flip as a whole. After the flipping is completed, the end of the shelf bend 407 that was originally stuck in the upper slot plate 305 is released from the limit, and the other end face of the shelf bend 407 is inserted into the slot plate 305 at the bottom of the turntable 301, automatically completing the switching of the other side to be cut. Finally, cylinder 208 continues to drive turntable 301 to move towards the lower end of limit groove 203, and rotating gear 306 meshes again with rotating rack 206 at the lower part of template 201. Turntable 301 rotates again, causing the other side of the shelf bend 407 to rotate circumferentially after switching. Linkage rod 303 synchronously pulls laser cutting head 8 to move down continuously. Laser cutting head 8, with the help of auxiliary gas, completes the circumferential cutting of the second end face of shelf bend 407. After all cutting processes are completed, cylinder 208 drives turntable 301 to reset as a whole. Tighten threaded wrench 408 in the opposite direction to release movable clamp 406, and the finished shelf bend 407 can be removed.

[0022] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A CNC laser tube cutting device for processing metal shelves in supermarkets, comprising a housing (1), characterized in that, The inner wall of the outer shell (1) is fixed with a composite motion component (2). The composite motion component (2) includes a backing template (201) installed on the inner wall of the outer shell (1). Support columns (202) are fixed at the four corners of the back of the backing template (201). The end of the support column (202) away from the backing template (201) is fixed to the inner wall of the outer shell (1). A limiting groove (203) is hollowed out in the middle of the backing template (201). Guide rails (204) are symmetrically fixed at both ends of the opening on the front of the limiting groove (203). A flip rack (205) is fixed in the middle of the side of the backing template (201) on the front. A rotating rack (206) is fixed in the two ends of the side of the backing template (201) on the back. A guide hole (207) is opened in the middle of the top of the backing template (201). A cylinder (208) is bolted in the middle of the bottom of the backing template (201). A telescopic rod (209) is fixedly connected to the telescopic end of the cylinder (208).

2. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 1, characterized in that, The template (201) is equipped with a rotary drive assembly (3). The rotary drive assembly (3) includes a turntable (301) that slides vertically inside the limiting groove (203). A toothed ring (302) is coaxially fixed on the outer periphery of the turntable (301). The toothed ring (302) is in a limiting fit with the middle step of the limiting groove (203). The bottom of the outer periphery of the toothed ring (302) is connected to the output end of the telescopic rod (209).

3. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 2, characterized in that, The rotary drive assembly (3) also includes a linkage rod (303) installed on the top of the outer periphery of the gear ring (302). The linkage rod (303) has a guide sleeve (304) in the middle of the vertical section of the L-shaped structure, and the guide sleeve (304) is fixedly embedded in the guide hole (207).

4. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 3, characterized in that, The rotary drive assembly (3) also includes a slot plate (305) fixedly installed on both ends of the front side of the turntable (301). A rotary gear (306) is coaxially fixed on the back side of the turntable (301), and the rotary gear (306) meshes with the rotary rack (206) at both ends of the side of the template (201) for transmission.

5. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 4, characterized in that, The template (201) is equipped with a flip drive assembly (4) on the front. The flip drive assembly (4) includes brackets (401) set on both sides of the opening of the limiting groove (203). The base of the bracket (401) is slidably engaged with the corresponding guide rails (204) on both sides through a slider, and the brackets (401) on both sides move up and down synchronously with the turntable (301).

6. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 5, characterized in that, The flip drive assembly (4) further includes a drive shaft (402) rotatably mounted inside a side bracket (401). A fixing plate (403) is fixed to the inner end of the drive shaft (402), and a flip gear (404) is fixed to the outer end of the drive shaft (402). The flip gear (404) meshes with a flip rack (205) in the middle of the side of the template (201).

7. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 6, characterized in that, The flipping drive assembly (4) also includes a threaded rod (405) that is limited and fitted inside the other side bracket (401). The inner end of the threaded rod (405) is rotatably connected to a movable clamping plate (406), and a shelf bend (407) is clamped between the arc-shaped clamping surfaces of the movable clamping plate (406) and the fixed clamping plate (403). The outer end of the threaded rod (405) is threadedly connected to a threaded wrench (408), and the threaded wrench (408) is limited and fitted outside the mounting hole on the end face of the bracket (401).

8. The CNC laser tube cutting device for processing supermarket metal shelves according to claim 7, characterized in that, The shelf bend (407) can rotate circumferentially between the arc-shaped clamping surfaces opposite to the movable clamping plate (406) and the fixed clamping plate (403), and one end of the shelf bend (407) is engaged in the corresponding slot plate (305). When the turntable (301) is raised and lowered at the upper and lower ends of the limiting groove (203), the turntable (301) rotates circumferentially and synchronously drives the trimming end face on one side of the shelf bend (407) to rotate synchronously through the meshing transmission of the rotating gear (306) and the rotating racks (206) on both sides of the back of the template (201).

9. A CNC laser tube cutting device for processing supermarket metal shelves according to claim 8, characterized in that, When the turntable (301) descends to the middle position of the template (201) within the limiting groove (203), the rotating gear (306) disengages from the rotating rack (206) and is driven by the meshing of the flipping gear (404) with the flipping rack (205) in the middle of the front of the template (201), causing the shelf bend (407) to flip and switch to the other side of the end face, and causing the other end face of the shelf bend (407) to be engaged with the corresponding slot plate (305).

10. A CNC laser tube cutting device for processing supermarket metal shelves according to claim 9, characterized in that, The top of the opening of the outer shell (1) is fixed with a lifting clamp (5), and a lifting rod (6) is vertically lifted inside the lifting clamp (5). The top side of the lifting rod (6) is fixed to the end of the L-shaped structure of the linkage rod (303), and a connector (7) is fixed to the bottom side of the lifting rod (6). A laser cutting head (8) is bolted to the end of the connector (7), and the laser cutting head (8) is located on the outer periphery of the shelf bend (407). It cooperates with the circumferential rotation of the shelf bend (407) to achieve end face cutting while avoiding interference with the flipping stroke of the shelf bend (407) when switching the end face for repair.

Images