A flange slicing device based on laser cutting

Abstract

The present application belongs to the technical field of flange laser cutting, and particularly relates to a flange slicing equipment based on laser cutting, which comprises a workpiece fixing assembly, a magnetic pressure relief assembly, a slicing and blanking assembly, an automatic feeding assembly, a workpiece protection assembly, a laser cutting assembly, a bottom plate and a magazine type stacking box, the workpiece fixing assembly is rotationally arranged in the slicing and blanking assembly, and the magnetic pressure relief assembly is arranged on the top of the workpiece fixing assembly. The present application can control the pressure relief of the hollow hanger rod in a specific area by the distance between the armature cap and the magnet, so that the cut part falls; in addition, the automatic feeding of the remaining flanges can be automatically completed after the cutting of one flange is completed by the pushing of the movable magnet by the push rod, and then the continuous cutting of a plurality of groups of flanges can be realized in the process of reciprocating sliding of the laser head and intermittent rotation of the gas distribution disc.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of flange laser cutting, and particularly relates to a flange slicing equipment based on laser cutting. BACKGROUND

[0002] Flange slicing refers to a manufacturing or installation mode of dividing a complete large-diameter flange plate into several pieces, and the main purpose is to facilitate the installation, disassembly and transportation of large-size flanges.

[0003] The current cutting process is mainly carried out by using a general cutting machine tool, and manual operation is required. Before cutting, a large amount of measurement, marking, tool setting and other processes are required, and the overall efficiency is low.

[0004] After the cutting is completed, the arc-shaped flange pieces also need to be stacked by manual operation. Before stacking, protective shells need to be placed between the workpieces to prevent the workpieces from being scratched and damaged due to collision. The steps are relatively complicated. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present application provides an equipment for automatically cutting flange pieces. The distance between the armature cap and the magnet can control the pressure relief of the hollow lifting rod in a specific area, so that the cut part falls. In addition, the pushing of the movable magnet by the push rod can automatically complete the automatic carry-over of the remaining flange plates after the cutting of a flange plate is completed, and then realize the continuous cutting of several groups of flange plates in the process of reciprocating sliding of the laser head and intermittent rotation of the gas distribution disc.

[0006] The technical scheme adopted by the present application is as follows: the present application provides a flange slicing equipment based on laser cutting, which comprises a workpiece fixing assembly, a magnetic pressure relief assembly, a slicing and discharging assembly, an automatic discharging assembly, a workpiece protection assembly, a laser cutting assembly, a bottom plate and a magazine type stacking box, the workpiece fixing assembly is rotatably arranged in the slicing and discharging assembly, the magnetic pressure relief assembly is arranged on the top of the workpiece fixing assembly, the slicing and discharging assembly is arranged on the bottom plate, the automatic discharging assembly is arranged on the slicing and discharging assembly, the workpiece protection assembly is sleeved on the workpiece fixing assembly, the laser cutting assembly is arranged on the bottom plate, and the magazine type stacking box is arranged on the bottom plate.

[0007] Further, the workpiece fixing assembly comprises a hollow lifting rod and an inflatable air bag, the bottom of the hollow lifting rod is provided with a honeycomb hole, and the inflatable air bag is sleeved on the bottom of the hollow lifting rod and penetrates the hollow lifting rod through the honeycomb hole.

[0008] Further, the magnetic pressure relief assembly comprises a pressure relief pipe and a one-way valve sheet, the pressure relief pipe is fixed to the top of the hollow boom through a support, the one-way valve sheet is fixed to the bottom of the pressure relief pipe, the edge of the one-way valve sheet is in contact with the inner wall of the hollow boom, and the side wall of the pressure relief pipe is provided with a pressure relief window.

[0009] Preferably, the magnetic pressure relief assembly further comprises a pressure relief cover and a closing spring, the pressure relief cover is clamped and slid on the pressure relief pipe, and the closing spring is arranged between the pressure relief cover and the pressure relief pipe.

[0010] Further, the workpiece blanking assembly comprises a fixed magnet, the pressure relief cover is provided with an armature cap, when the armature cap moves below the fixed magnet, the pressure relief cover will rise and leave the pressure relief window under the action of magnetic force.

[0011] Preferably, the workpiece blanking assembly further comprises a fixed support, the fixed support is provided with a guide column and a supporting leg, and the supporting leg is arranged on the bottom plate.

[0012] Further, the automatic feeding assembly comprises a movable magnet and a return spring, the movable magnet is provided with a lifting lug, the lifting lug is clamped and slid in the guide column, the return spring is sleeved on the guide column, and the return spring is arranged between the fixed support and the lifting lug.

[0013] Preferably, the workpiece blanking assembly further comprises a center bearing, the workpiece fixing assembly further comprises a gas distribution disc, the gas distribution disc is provided with a center pipe, the center bearing is arranged between the fixed support and the center pipe, the gas distribution disc is further provided with an annular pipe, a gas supply connector is annularly and uniformly arranged below the annular pipe, and the hollow boom is sleeved outside the gas supply connector.

[0014] Further preferably, the automatic feeding assembly further comprises a lever, the lever is fixed to the center pipe, the movable magnet is provided with a pressing block, and when the lever abuts against the pressing block, the movable magnet is pushed to descend to the height of the fixed magnet.

[0015] Further, the workpiece protection assembly comprises a flange plate, an arc-shaped protection shell and a protection bushing, the arc-shaped protection shell is clamped below the flange plate, the arc-shaped protection shell is annularly and uniformly arranged in groups, and the protection bushing is arranged in the through hole of the flange plate.

[0016] Further, the laser cutting assembly comprises a linear module, a sliding plate and a laser head, the linear module is arranged on the bottom plate, the sliding plate is slidably arranged on the linear module, and the laser head is arranged on the sliding plate.

[0017] Through reciprocating movement of the laser head, the workpiece on the path thereof can be cut, and cooperating with rotation of the air distribution disc, the complete flange plate can be separated into several independent arc-shaped parts, facilitating installation, disassembly and transportation.

[0018] The bottom plate is further provided with a sector-shaped supporting plate for supporting the flange plate, and the sector-shaped supporting plate is provided with a notch matched with the magazine type stacking box.

[0019] The magazine type stacking box needs to be slightly offset outward to avoid interference with the laser cutting assembly, and therefore the upper edge of the magazine type stacking box is provided with an inclined slide way, which can enable the cut and fallen parts to enter the magazine type stacking box.

[0020] The application has the following beneficial effects by adopting the above structure:

[0021] (1) When the air pressure in the hollow hanger increases, the protection sleeve can be clamped by the expansion of the expansion air bag, so as to realize the fixation of the flange plate, at this time, the longitudinal support of the flange plate not only comes from the friction force of the side surface of the expansion air bag, but more from the step support part formed below the protection sleeve after the expansion of the expansion air bag; when the air pressure in the hollow hanger decreases, the expansion air bag contracts and cancels the support of the protection sleeve.

[0022] (2) Under the blocking effect of the one-way valve sheet, the gas in the air distribution disc can only enter the hollow hanger in one direction and cannot backflow, so as to ensure that the local hollow hanger does not cause other hollow hangers to follow the pressure relief when the pressure relief.

[0023] (3) Through the magnetic attraction force of the armature cap and the fixed magnet, the expansion air bag at the fixed magnet can be temporarily relieved, so as to enable the cut flange to separate from the hollow hanger.

[0024] (4) The height position of the movable magnet can be changed, when the movable magnet is in the high position, the distance from the lower armature cap is far, the magnetic attraction force cannot attract the pressure relief cover to move up, and the pressure relief cannot be completed through the pressure relief pipe; when the movable magnet is in the low position, the distance from the lower armature cap is close, the magnetic attraction force can attract the pressure relief cover to move up, and the pressure relief is completed through the pressure relief pipe.

[0025] (5) When the air distribution disc rotates one circle, the movable magnet can be pushed down through the way that the lever abuts against the pressing block, so as to simultaneously realize the pressure relief of all expansion air bags and the collective descent of all flange plates, and the new flange plate is moved to the cutting position.

[0026] (6) The arc-shaped protection shell and the protection sleeve not only can protect the flange plate and avoid the collision between the flange plates, but also can form a longitudinal gap between the adjacent flange plates, so as to leave a machining space for laser cutting. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 This is a perspective view of a flange segmentation device based on laser cutting proposed in this invention;

[0028] Figure 2 This is a front view of a flange segmentation device based on laser cutting proposed in this invention;

[0029] Figure 3 This is a top view of a flange segmentation device based on laser cutting proposed in this invention;

[0030] Figure 4 for Figure 2 A cross-sectional view along section line AA;

[0031] Figure 5 for Figure 4 A cross-sectional view along the cutting line BB;

[0032] Figure 6 This is an exploded structural diagram of a flange segmentation device based on laser cutting proposed in this invention;

[0033] Figure 7 for Figure 5 A magnified view of a section at point I;

[0034] Figure 8 for Figure 5 Enlarged view of a section at point II;

[0035] Figure 9 for Figure 4 A magnified view of a section at point III.

[0036] The components include: 1. Workpiece fixing assembly; 2. Magnetic pressure relief assembly; 3. Segmented feeding assembly; 4. Automatic feeding assembly; 5. Workpiece protection assembly; 6. Laser cutting assembly; 7. Base plate; 8. Magazine-type stacking box; 11. Hollow lifting rod; 12. Inflatable airbag; 13. Air distribution plate; 21. Pressure relief pipe; 22. One-way valve plate; 23. Pressure relief cover; 24. Closing spring; 31. Fixing bracket; 32. Fixing magnet; 33. Central bearing; 41. 42. Movable magnet, 43. Return spring, 51. Lever, 52. Flange, 53. Arc-shaped protective shell, 54. Protective bushing, 65. Linear module, 66. Slide plate, 67. Laser head, 78. Fan-shaped support plate, 111. Honeycomb hole, 131. Central tube, 132. Ring tube, 133. Gas supply connector, 211. Pressure relief window, 231. Armature cap, 311. Guide column, 312. Support leg, 411. Lifting ear, 412. Pressure block.

[0037] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application; based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] As shown in Figures 1-9 The present application proposes a flange slicing equipment based on laser cutting, which comprises a workpiece fixing assembly 1, a magnetic suction type pressure relief assembly 2, a slicing blanking assembly 3, an automatic feeding assembly 4, a workpiece protection assembly 5, a laser cutting assembly 6, a bottom plate 7 and a magazine type stacking box 8. The workpiece fixing assembly 1 is rotatably arranged in the slicing blanking assembly 3. The magnetic suction type pressure relief assembly 2 is arranged on the top of the workpiece fixing assembly 1. The slicing blanking assembly 3 is arranged on the bottom plate 7. The automatic feeding assembly 4 is arranged on the slicing blanking assembly 3. The workpiece protection assembly 5 is sleeved on the workpiece fixing assembly 1. The laser cutting assembly 6 is arranged on the bottom plate 7. The magazine type stacking box 8 is arranged on the bottom plate 7.

[0041] The workpiece fixing assembly 1 comprises a hollow boom 11 and an inflatable air bag 12. The bottom of the hollow boom 11 is provided with a honeycomb hole 111. The inflatable air bag 12 is sleeved on the bottom of the hollow boom 11 and penetrates the hollow boom 11 through the honeycomb hole 111.

[0042] When the air pressure in the hollow boom 11 increases, the inflation of the inflatable air bag 12 can clamp the protection bushing 53, so as to fix the flange plate 51. At this time, the longitudinal support of the flange plate 51 not only comes from the friction force of the side of the inflatable air bag 12, but also comes from the step support part formed below the protection bushing 53 after the inflation of the inflatable air bag 12. When the air pressure in the hollow boom 11 decreases, the inflatable air bag 12 contracts and cancels the support of the protection bushing 53.

[0043] The magnetic suction type pressure relief assembly 2 comprises a pressure relief pipe 21 and a one-way valve piece 22. The pressure relief pipe 21 is fixedly connected to the top of the hollow boom 11 through a support. The one-way valve piece 22 is fixedly connected to the bottom of the pressure relief pipe 21. The edge of the one-way valve piece 22 is in contact with the inner wall of the hollow boom 11. The side wall of the pressure relief pipe 21 is provided with a pressure relief window 211.

[0044] Under the blocking effect of the one-way valve piece 22, the gas in the gas distribution disc 13 can only enter the hollow hanger rod 11 in one direction and cannot flow back, thereby ensuring that the pressure relief of the local hollow hanger rod 11 will not cause other hollow hanger rods 11 to follow the pressure relief.

[0045] The magnetic pressure relief assembly 2 further comprises a pressure relief cover 23 and a closing spring 24, the pressure relief cover 23 is clamped and slidably arranged on the pressure relief pipe 21, and the closing spring 24 is arranged between the pressure relief cover 23 and the pressure relief pipe 21.

[0046] The flake blanking assembly 3 comprises a fixed magnet 32, and the pressure relief cover 23 is provided with an armature cap 231, when the armature cap 231 moves below the fixed magnet 32, the pressure relief cover 23 will rise and leave the pressure relief window 211 under the action of magnetic attraction.

[0047] Through the magnetic attraction of the armature cap 231 and the fixed magnet 32, the fixed magnet 32 can temporarily relieve the pressure of the inflatable air bag 12, so that the cut flange flake can be separated from the hollow hanger rod 11.

[0048] The flake blanking assembly 3 further comprises a fixed support 31, the fixed support 31 is provided with a guide column 311 and a supporting leg 312, and the supporting leg 312 is arranged on the bottom plate 7.

[0049] The automatic feeding assembly 4 comprises a movable magnet 41 and a return spring 42, the movable magnet 41 is provided with a lifting lug 411, the lifting lug 411 is clamped and slidably arranged in the guide column 311, and the return spring 42 is sleeved on the guide column 311 and arranged between the fixed support 31 and the lifting lug 411.

[0050] The height position of the movable magnet 41 can be changed, when the movable magnet 41 is in the high position, the distance from the lower armature cap 231 is far, the magnetic attraction cannot attract the pressure relief cover 23 to move upward, and the pressure relief cannot be completed through the pressure relief pipe 21, when the movable magnet 41 is in the low position, the distance from the lower armature cap 231 is close, the magnetic attraction can attract the pressure relief cover 23 to move upward, and the pressure relief can be completed through the pressure relief pipe 21.

[0051] The flake blanking assembly 3 further comprises a center bearing 33, and the workpiece fixing assembly 1 further comprises a gas distribution disc 13, the gas distribution disc 13 is provided with a center pipe 131, the center bearing 33 is arranged between the fixed support 31 and the center pipe 131, and the gas distribution disc 13 is further provided with an annular pipe 132, a plurality of gas supply connectors 133 are arranged in the annular pipe 132 in a ring shape, and the hollow hanger rod 11 is sleeved outside the gas supply connectors 133.

[0052] When the air distribution disc 13 rotates one circle, the movable magnet 41 can be pushed down by the way that the lever 43 abuts against the pressing block 412, so as to realize the pressure relief of all the inflatable air bags 12, the collective descent of all the flange plates 51 and the movement of the new flange plate 51 to the cutting station.

[0053] The automatic feeding assembly 4 further comprises a lever 43 fixedly connected to the center pipe 131, and the movable magnet 41 is provided with a pressing block 412, and the lever 43 pushes the movable magnet 41 down to the height of the fixed magnet 32 when the lever 43 abuts against the pressing block 412.

[0054] The workpiece protection assembly 5 comprises the flange plate 51, the arc-shaped protection shell 52 and the protection bushing 53, the arc-shaped protection shell 52 is clamped below the flange plate 51, the arc-shaped protection shell 52 is uniformly arranged in a ring shape, and the protection bushing 53 is arranged in the through hole of the flange plate 51.

[0055] The arc-shaped protection shell 52 and the protection bushing 53 not only can protect the flange plate 51 and avoid the collision between the flange plates 51, but also can form a longitudinal gap between the adjacent flange plates 51 to leave a processing space for laser cutting.

[0056] The laser cutting assembly 6 comprises the linear module 61, the sliding plate 62 and the laser head 63, the linear module 61 is arranged on the bottom plate 7, the sliding plate 62 is slidingly arranged on the linear module 61, and the laser head 63 is arranged on the sliding plate 62.

[0057] Through the reciprocating movement of the laser head 63, the workpiece on the path of the laser head 63 can be cut, and cooperating with the rotation of the air distribution disc 13, the complete flange plate 51 can be divided into several independent arc-shaped parts, which is convenient for installation, disassembly and transportation.

[0058] The bottom plate 7 is further provided with a fan-shaped supporting plate 71 for supporting the flange plate 51, and the fan-shaped supporting plate 71 is provided with a notch matched with the magazine type stacking box 8.

[0059] The magazine type stacking box 8 needs to be slightly offset outward to avoid interference with the laser cutting assembly 6, so the upper edge of the magazine type stacking box 8 is provided with an inclined slide, which can make the cut and fallen parts enter the magazine type stacking box 8.

[0060] In specific use, first, the user needs to pass the hollow hanger 11 through the protective sleeve 53, and then the external air pump supplies air to the hollow hanger 11 through the central pipe 131, when the pressure in the hollow hanger 11 rises, the inflatable air bag 12 expands to clamp the protective sleeve 53, thereby fixing the flange plate 51, at this time, the longitudinal support of the flange plate 51 not only comes from the friction force of the side of the inflatable air bag 12, but more from the step support part formed under the protective sleeve 53 after the inflatable air bag 12 expands, at this time, the longitudinal height of the lowermost flange plate 51 can be positioned by the fan-shaped supporting plate 71.

[0061] In the process of laser cutting, the flange plate 51 can be cut by sliding the laser head 63 with the sliding plate 62, and the cutting position is just located at the gap of the arc-shaped protective shell 52, the arc-shaped protective shell 52 not only protects the flange plate 51 from bumping between the flange plates 51, but also forms a longitudinal gap between the adjacent flange plates 51 to leave a machining space for laser cutting.

[0062] After the first cutting, the flange plate only has a cutting seam and is not completely separated, then the air distribution plate 13 is rotated by an external mechanism by a certain angle, and the cutting is completed again by the return of the laser head 63, at this time, the flange plate 51 is divided into two parts by two cutting lines, the part below the movable magnet 41 is still fixed by the inflatable air bag 12, and the part below the fixed magnet 32 naturally falls into the magazine type storage box 8 after losing the clamping of the inflatable air bag 12, the reason is as follows:

[0063] When the pressure relief cover 23 is below the movable magnet 41, because the distance between the armature cap 231 and the movable magnet 41 is far, the magnetic attraction is smaller than the elastic force of the closing spring 24, so the pressure relief cover 23 can close the pressure relief window 211; when the pressure relief cover 23 is below the fixed magnet 32, because the distance between the armature cap 231 and the fixed magnet 32 is close, the magnetic attraction can overcome the elastic force of the closing spring 24 to attract the pressure relief cover 23, and at the same time, the pressure relief window 211 is opened, at this time, the gas in the hollow hanger 11 leaks, the air pressure decreases, and the inflatable air bag 12 cannot maintain the support and fixation of the protective sleeve 53, so the flange plate 51 cut at this position will fall;

[0064] After leaving the fixed magnet 32, the pressure relief cover 23 is reset under the elastic force of the closing spring 24, and the pressure relief window 211 is closed again, at this time, the air pressure in the hollow hanger 11 rises, the inflatable air bag 12 expands and restores its inflation support function.

[0065] After each cutting is completed, the air distribution plate 13 will rotate the workpiece protection assembly 5 by a certain angle, starting from the second cutting seam, with each additional cutting seam, an independent cut part will enter the magazine type storage box 8.

[0066] After one rotation, the lever 43, which rotates with the air distribution plate 13, just touches the pressure block 412 and pushes the movable magnet 41 downward. After the movable magnet 41 descends, it approaches the distance of the armature cap 231. At this time, all the hollow lifting rods 11 will retract, and the flange 51 will fall as a whole until the bottom flange 51 falls on the fan-shaped support plate 71, and then the next cutting and processing cycle can begin.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0068] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flange segmentation device based on laser cutting, characterized in that: The assembly includes a workpiece fixing component (1), a magnetic pressure relief component (2), a slicing and unloading component (3), an automatic feeding component (4), a workpiece protection component (5), a laser cutting component (6), a base plate (7), and a magazine-type stacking box (8). The workpiece fixing component (1) is rotatably disposed in the slicing and unloading component (3). The magnetic pressure relief component (2) is disposed on the top of the workpiece fixing component (1). The slicing and unloading component (3) is disposed on the base plate (7). The automatic feeding component (4) is disposed on the slicing and unloading component (3). The workpiece protection component (5) is sleeved on the workpiece fixing component (1). The laser cutting component (6) is disposed on the base plate (7). The magazine-type stacking box (8) is disposed on the base plate (7). The workpiece fixing assembly (1) includes a hollow rod (11) and an inflatable airbag (12). The bottom of the hollow rod (11) is provided with a honeycomb hole (111). The inflatable airbag (12) is sleeved on the bottom of the hollow rod (11) and communicates with the hollow rod (11) through the honeycomb hole (111). The magnetic pressure relief assembly (2) includes a pressure relief pipe (21) and a one-way valve plate (22). The pressure relief pipe (21) is fixed to the top of the hollow rod (11) by a bracket. The one-way valve plate (22) is fixed to the bottom of the pressure relief pipe (21). The edge of the one-way valve plate (22) is in contact with the inner wall of the hollow rod (11). A pressure relief window (211) is provided on the side wall of the pressure relief pipe (21). The magnetic pressure relief assembly (2) also includes a pressure relief cover (23) and a closing spring (24). The pressure relief cover (23) is engaged and slidably disposed on the pressure relief pipe (21), and the closing spring (24) is disposed between the pressure relief cover (23) and the pressure relief pipe (21). The slicing and feeding assembly (3) includes a fixed magnet (32), and the pressure relief cover (23) is provided with an armature cap (231). When the armature cap (231) moves to the bottom of the fixed magnet (32), the pressure relief cover (23) will rise and leave the pressure relief window (211) under the action of magnetic attraction. The workpiece fixing assembly (1) also includes an air distribution plate (13), and the air distribution plate (13) is also provided with an annular pipe (132). An air supply connector (133) is evenly distributed in an annular pattern below the annular pipe (132), and the hollow hanging rod (11) is sleeved on the outside of the air supply connector (133).

2. The flange segmentation device based on laser cutting according to claim 1, characterized in that: The slicing and unloading assembly (3) also includes a fixed bracket (31), on which a guide post (311) and a support leg (312) are provided, and the support leg (312) is located on the base plate (7); The automatic feeding assembly (4) includes a movable magnet (41) and a return spring (42). The movable magnet (41) is provided with a lifting ear (411). The lifting ear (411) is engaged and slidably disposed in the guide post (311). The return spring (42) is sleeved on the guide post (311) and is disposed between the fixed bracket (31) and the lifting ear (411).

3. A flange segmentation device based on laser cutting according to claim 2, characterized in that: The slicing and feeding assembly (3) also includes a central bearing (33), and a central tube (131) is provided on the air distribution plate (13). The central bearing (33) is located between the fixed bracket (31) and the central tube (131).

4. A flange segmentation device based on laser cutting according to claim 3, characterized in that: The automatic feeding assembly (4) also includes a lever (43), which is fixed to the central tube (131). The movable magnet (41) is provided with a pressure block (412). When the lever (43) abuts against the pressure block (412), it will push the movable magnet (41) down to the same height as the fixed magnet (32).

5. A flange segmentation device based on laser cutting according to claim 4, characterized in that: The workpiece protection assembly (5) includes a flange (51), an arc-shaped protective shell (52), and a protective bushing (53). The arc-shaped protective shell (52) is fitted below the flange (51). Several sets of arc-shaped protective shells (52) are evenly distributed in a ring. The protective bushing (53) is located in the through hole of the flange (51).

6. A flange segmentation device based on laser cutting according to claim 5, characterized in that: The laser cutting assembly (6) includes a linear module (61), a sliding plate (62), and a laser head (63). The linear module (61) is mounted on the base plate (7), the sliding plate (62) is slidably mounted on the linear module (61), and the laser head (63) is mounted on the sliding plate (62).

7. A flange segmentation device based on laser cutting according to claim 6, characterized in that: The base plate (7) is also provided with a fan-shaped support plate (71) for supporting the flange (51), and the fan-shaped support plate (71) is provided with a notch for cooperating with the magazine-type stacking box (8).

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