Cutting device for machining metal sheet with high depth-to-width ratio and cutting method of cutting device

Abstract

The invention belongs to the technical field of metal plate machining, and discloses a high-aspect-ratio metal sheet machining cutting device and a cutting method thereof.The high-aspect-ratio metal sheet machining cutting device comprises a top frame, a rack is fixedly installed at the bottom end of the top frame, and conveying rollers are movably installed on the inner side face of the rack at equal intervals; power assemblies are fixedly installed on the front side and the rear side of the top end of an inner cavity of the top frame correspondingly, a cutting assembly located below the power assemblies is arranged on the inner side face of the top frame, and the bottom ends of the two power assemblies are connected with the top end of the cutting assembly. By means of high-pressure water input from the outside and cooperation among the cutting assembly, the limiting assembly and the conveying rollers, in the continuous cutting process of a metal plate, clamping of the metal plate does not need to be frequently and manually loosened, and the continuous cutting process of the metal plate can be completed only by controlling starting of an external water pump and conveying of the conveying rollers; the complex control process during traditional continuous machining is avoided, the operation steps are simplified, and the cutting efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal plate processing, and in particular relates to a cutting device for processing a metal thin plate with a high aspect ratio and a cutting method thereof. Background Art

[0002] A high aspect ratio metal sheet is a metal material with a large depth to width ratio and relatively thin thickness. A high aspect ratio metal sheet usually refers to a metal sheet with a relatively large ratio of depth (or dimension in the thickness direction) to width (or dimension in the length direction).

[0003] During the processing of this type of sheet, due to its greater depth, it often places higher requirements on cutting, bending, welding and other processes. During the processing of metal sheets with a high aspect ratio, a special cutting device is used to cut them.

[0004] The cutting device for metal plates is mainly composed of a workbench and a cutting assembly. When cutting, the metal plate is fixed on the workbench and the cutting assembly is moved down to cut the metal plate. Although this cutting method can effectively cut the metal plate, when the metal plate needs to be cut repeatedly, it is necessary to frequently loosen and tighten the metal plate, move the metal plate, and then perform positioning cutting. The entire continuous cutting process is relatively cumbersome.

[0005] At the same time, during the cutting process of metal plates, the cutting blade of the cutting assembly will generate a lot of heat during high-speed cutting. If used for a long time, it will cause high temperatures on the metal blade and the surface of the metal plate. The metal plate with a high aspect ratio is thinner and is prone to deformation during high-temperature cutting, which urgently needs improvement. Summary of the invention

[0006] The object of the present invention is to provide a cutting device and a cutting method for processing a metal sheet with a high aspect ratio, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cutting device for processing metal thin plates with a high aspect ratio, comprising a top frame, a frame is fixedly installed on the bottom end of the top frame, and conveying rollers are movably installed on the inner side surface of the frame at equal distances, power components are fixedly installed on the front and rear sides of the top of the inner cavity of the top frame, and the inner side surface of the top frame is provided with a cutting component located below the power component, and the bottom ends of the two power components are connected to the top of the cutting component. A fixing frame is fixedly installed on the inner side surface of the top frame near the bottom end, and guide grooves are provided on the fixing frame near the four corners, and a cleaning groove is provided in the middle of the fixing frame, and the cutting component is located directly above the cleaning groove, and limiting components are fixedly installed on the left and right sides of the bottom end of the cutting component, and the limiting component is movably engaged with the guide groove.

[0008] Before cutting the metal sheet, the metal sheet can be pushed into one side of the conveyor roller, and the conveyor roller can be turned on to drive the metal sheet to move. When the metal sheet moves to the bottom of the cutting component, the conveyor roller can be closed to stop the displacement of the metal sheet. At the same time, in the initial state, the two limit components approach the cutting component until the cutting area of ​​the metal sheet moves to the bottom of the cutting component. The two limit components can pre-support the top of the metal sheet to prevent tilting.

[0009] As a further technical solution of the present invention, the cutting assembly includes a top plate, the top end of the top plate is fixedly connected to the power assembly, a guide groove is opened in the middle of the bottom end of the top plate, and a guide block is movably connected inside the guide groove, and the guide block is displaced forward and backward relative to the guide groove.

[0010] As a further technical solution of the present invention, a cutting blade is fixedly installed on the bottom end of the guide block, a threaded groove is opened inside the guide block and a screw rod is threadedly connected, an extension seat is fixedly installed on one side of the top plate, a servo motor is fixedly installed on the inner side surface of the extension seat, the output end of the servo motor is fixedly connected to the screw rod, and the screw rod and the guide groove are movably connected.

[0011] Before cutting the metal sheet, the cutting blade needs to be moved to one side of the metal sheet, and the cutting blade does not contact the metal sheet when it descends. When the limit is completed, that is, the top plate moves downward, the cutting blade moves downward accordingly. At this time, the cutting blade can be located on the side of the metal plate, waiting to cut the metal plate; when cutting, the servo motor can be turned on to drive the screw to rotate. At this time, the guide block moves accordingly under the guiding action of the guide groove, and drives the cutting blade at the bottom to move. At this time, the cutting blade moves relative to the metal plate and cuts the metal plate horizontally to complete the cutting process.

[0012] As a further technical solution of the present invention, a three-way valve is fixedly installed in the middle of the top of the top frame, the top of the three-way valve is connected to the external water pump, the front and rear ends of the three-way valve are fixedly connected with water pipes, and the bottom end of the water pipe is connected to the top of the two power components.

[0013] As a further technical solution of the present invention, the power assembly includes a water tank, the top of the water tank is connected to the top of the inner cavity of the top frame, the top of the water tank is communicated with a water pipe, the interior of the water tank is movably sleeved with a piston plate, and a limiting spring is fixedly connected between the top of the piston plate and the inner cavity of the water tank.

[0014] As a further technical solution of the present invention, a piston rod is fixedly installed at the bottom end of the piston plate, and the bottom end of the piston rod passes through the bottom end of the water tank and is connected to the top end of the top plate. The left and right sides of the water tank near the bottom are fixedly connected with drainage pipes. When the bottom end of the piston plate contacts the bottom end of the inner cavity of the water tank, the piston plate is located below the output end of the piston rod, and the limit spring is in an extreme tension state.

[0015] When cutting, the high-pressure water flow is introduced into the interior of the water tank and drives the piston plate to move downward. When the piston plate moves to the lowest point, the high-pressure water flow is discharged through the drain pipe. The high-pressure water flow discharged through the drain pipe acts on the surface of the metal plate and the cutting blade to cool the metal plate and remove metal debris generated during cutting, completing the auxiliary cooling process.

[0016] By utilizing the high-pressure water used in the downward movement of the cutting blade and realizing limited support through the action of the high-pressure water, the exported high-pressure water can also be directly used to act on the surface of the metal plate being cut. The high temperature on the surface of the metal plate is taken away by the flowing water flow, and the metal debris is taken away at the same time, thereby avoiding deformation of the metal plate caused by high temperature during the cutting process and improving the quality of the metal plate.

[0017] When the top plate moves downward under the action of the power assembly, the top plate and the cutting blade at the bottom can move downward synchronously. When the cutting blade moves downward, the surface of the cutting blade can contact the inner side of the cleaning groove, and the outer side of the cutting blade can be automatically cleaned through the cleaning groove to complete the automatic cleaning before cutting. At the same time, after the cutting is completed, due to the automatic resetting of the power assembly, the top plate and the cutting blade also rise synchronously. At this time, the cutting blade can contact the cleaning groove again, so that the surface of the cutting blade can be cleaned for the second time to complete the automatic cleaning process.

[0018] By utilizing the automatic up and down displacement process of the cutting blade when cutting metal plates, in conjunction with a fixed cleaning tank and the water flow derived from a power component, the cutting blade can be automatically cleaned before cutting and after cutting. The entire process is completed automatically without manual assistance, which can effectively ensure the surface cleanliness of the cutting blade before and after metal plate cutting and ensure the quality of metal plate cutting.

[0019] As a further technical solution of the present invention, the limiting assembly includes a first fixed seat, which is two in number and symmetrically installed on the front and rear sides of the bottom end of the top plate, and one end of the first fixed seat away from the top plate is movably connected to a connecting rod through a rotating shaft.

[0020] As a further technical solution of the present invention, one end of the connecting rod away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft, and a clamping block is fixedly installed on the bottom end of the second fixed seat. The clamping block is movably connected to the guide groove, and the limiting assembly also includes a pressure plate, and the top of the pressure plate is connected to the bottom ends of the two clamping blocks.

[0021] When cutting the metal plate, the external water pump can be turned on to output high-pressure water to the inside of the three-way valve, and the water enters the inside of the rear two power components after being distributed through the water pipe. At this time, the piston plate can be driven to move downward, and the limit spring is compressed, and the piston rod and the top plate are driven to move downward at the same time, until the cutting blade moves to the cutting position. When the top plate moves downward, the connecting rod is deflected in the direction away from the top plate. At this time, the left and right multiple blocks move away from each other under the action of the guide groove, and drive the two pressure plates to move away from each other. At this time, the two pressure plates can support the left and right ends of the metal plate cutting area. After the cutting assembly completes the cutting of the metal plate, the power assembly can be controlled to automatically reset. At this time, the cutting assembly automatically rises, and the conveying roller is turned on to drive the cut metal plate to move. When the metal plate enters the cutting area again, the cutting assembly continues to be controlled to move downward, and the limit assembly is conducive to automatically supporting the two ends of the metal plate. Repeat the above process to complete the continuous cutting process of the metal plate.

[0022] By utilizing external high-pressure water and the coordination between the cutting assembly, the limiting assembly and the conveying roller, there is no need to frequently manually loosen or tighten the clamping of the metal plate during the continuous cutting process. The continuous cutting process of the metal plate can be completed by controlling the start of the external water pump and the conveying of the conveying roller, thus avoiding the complicated control process of traditional continuous processing, simplifying the operating steps and improving the cutting efficiency.

[0023] A cutting method for a cutting device for processing a metal sheet with a high aspect ratio, comprising the following steps: S1: Before cutting, the metal sheet to be cut is first fed into the device from one side of the conveyor roller, and the conveyor roller is started to drive the metal sheet to move until the cutting area of ​​the metal sheet is moved to the bottom of the cutting assembly. At this time, the conveyor roller can be stopped, and the metal sheet stops moving and enters the state of waiting for cutting; S2: When cutting, the external water pump is turned on to output high-pressure water to the inside of the three-way valve, and then output it through the water pipe and into the water storage tank. At this time, the piston plate moves down, driving the piston rod to move down, and finally driving the top plate to move down. When the top plate moves down, the cutting blade at the bottom moves down and contacts one side of the metal sheet, waiting for cutting; S3: When the top plate moves downward, the connecting rod deflects in the direction away from the top plate, and drives the two pressing plates to move relatively away from each other. At this time, the two pressing plates can contact the two ends of the metal plate and provide limited support for them at the same time. At this time, the screw rod and the cutting blade can be opened to cut the metal plate; S4: During the cutting process, as the piston plate moves to the lowest point, high-pressure water is discharged through the drain pipe and acts on the surface of the metal plate and the cutting blade to cool them down and complete the debris cleaning process.

[0024] The beneficial effects of the present invention are as follows: 1. The present invention utilizes external high-pressure water and the cooperation between the cutting component, the limiting component and the conveying roller, so that during the continuous cutting process of the metal plate, there is no need to frequently manually loosen or tighten the clamping of the metal plate. The continuous cutting process of the metal plate can be completed by controlling the start of the external water pump and the conveying of the conveying roller, thereby avoiding the complicated control process of traditional continuous processing, simplifying the operating steps and improving the cutting efficiency.

[0025] 2. The present invention utilizes the high-pressure water used in the process of moving the cutting blade downward, and realizes the limit support through the action of the high-pressure water. At the same time, the high-pressure water can be directly used to act on the surface of the metal plate being cut. The high temperature on the surface of the metal plate is taken away by the flowing water flow, and the metal debris is taken away at the same time, thereby avoiding deformation of the metal plate caused by high temperature during the cutting process and improving the quality of the metal plate.

[0026] 3. The present invention utilizes the automatic up and down displacement process of the cutting blade when cutting the metal plate, cooperates with the fixed cleaning tank and the water flow derived from the power component, and can realize the automatic cleaning of the cutting blade before cutting and after cutting. The whole process is completed automatically without manual assistance, which can effectively ensure the surface cleanliness of the cutting blade before and after the metal plate cutting, and ensure the quality of the metal plate cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] FIG1 is a schematic diagram of the overall structure of the present invention; FIG2 is a schematic diagram of the coordination of the top frame, the frame and the conveying roller structure of the present invention; FIG3 is a schematic diagram of the present invention in a state where the top frame, the frame and the conveying roller are hidden; FIG4 is a schematic diagram of the coordination of the three-way valve and the power assembly structure of the present invention; FIG5 is a separate cross-sectional schematic diagram of the internal structure of the power assembly of the present invention; FIG6 is a separate schematic diagram of the fixing frame structure of the present invention; FIG. 7 is a separate exploded schematic diagram of the cutting assembly structure of the present invention; FIG. 8 is a separate schematic diagram of the limit assembly structure of the present invention.

[0028] In the figure: 1. top frame; 2. frame; 3. conveyor roller; 4. three-way valve; 5. water pipe; 6. power assembly; 601. water storage tank; 602. piston plate; 603. piston rod; 604. drain pipe; 605. limit spring; 7. fixed frame; 8. guide groove; 9. cleaning groove; 10. cutting assembly; 101. top plate; 102. guide groove; 103. guide block; 104. cutting blade; 105. screw rod; 106. extension seat; 107. servo motor; 11. limit assembly; 111. first fixed seat; 112. second fixed seat; 113. connecting rod; 114. block; 115. pressure plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As shown in Figures 1 to 8, in an embodiment of the present invention, a cutting device for processing a metal sheet with a high aspect ratio includes a top frame 1, a frame 2 is fixedly installed at the bottom end of the top frame 1, and conveying rollers 3 are movably installed at equal distances on the inner side surface of the frame 2, power components 6 are fixedly installed on both the front and rear sides of the top of the inner cavity of the top frame 1, and a cutting component 10 is provided on the inner side surface of the top frame 1 below the power component 6, and the bottom ends of the two power components 6 are connected to the top of the cutting component 10, and a fixing frame 7 is fixedly installed on the inner side surface of the top frame 1 near the bottom end, and guide grooves 8 are provided on the fixing frame 7 near the four corners, and a cleaning groove 9 is provided in the middle of the fixing frame 7, and the cutting component 10 is located directly above the cleaning groove 9, and the left and right sides of the bottom end of the cutting component 10 are fixedly installed, and the limiting component 11 is movably connected with the guide groove 8.

[0031] Before cutting the metal sheet, the metal sheet can be pushed into one side of the conveyor roller 3, and the conveyor roller 3 can be turned on to drive the metal sheet to move. When the metal sheet moves to the bottom of the cutting component 10, the conveyor roller 3 can be closed to stop the displacement of the metal sheet. At the same time, in the initial state, the two limit components 11 approach the cutting component 10 until the cutting area of ​​the metal sheet moves to the bottom of the cutting component 10. The two limit components 11 can pre-support the top of the metal sheet to prevent tilting.

[0032] As shown in Figures 1 and 2 and Figures 3 and 7, the cutting assembly 10 includes a top plate 101, the top of the top plate 101 is fixedly connected to the power assembly 6, a guide groove 102 is provided in the middle of the bottom end of the top plate 101, a guide block 103 is movably connected inside the guide groove 102, the guide block 103 is displaced forward and backward relative to the guide groove 102, a cutting blade 104 is fixedly installed at the bottom end of the guide block 103, a threaded groove is provided inside the guide block 103 and a screw rod 105 is threadedly connected, an extension seat 106 is fixedly installed on one side of the top plate 101, a servo motor 107 is fixedly installed on the inner side surface of the extension seat 106, the output end of the servo motor 107 is fixedly connected to the screw rod 105, and the screw rod 105 is movably connected to the guide groove 102.

[0033] Before cutting the metal sheet, the cutting blade 104 needs to be moved to one side of the metal sheet, and the cutting blade 104 does not contact the metal sheet when it descends. When the limit is completed, that is, when the top plate 101 moves downward, the cutting blade 104 moves downward accordingly. At this time, the cutting blade 104 can be located at the side of the metal sheet, waiting to cut the metal sheet; During cutting, the servo motor 107 can be turned on to drive the screw 105 to rotate. At this time, the guide block 103 is displaced under the guidance of the guide groove 102, and the cutting blade 104 at the bottom is driven to displace. At this time, the cutting blade 104 is displaced relative to the metal plate and cuts the metal plate horizontally to complete the cutting process.

[0034] As shown in Figures 1 and 3 and Figures 4 and 5, a three-way valve 4 is fixedly installed in the middle of the top of the top frame 1, and the top of the three-way valve 4 is connected to the external water pump. The front and rear ends of the three-way valve 4 are fixedly connected with a water pipe 5, and the bottom end of the water pipe 5 is connected to the top of two power components 6. The power component 6 includes a water tank 601, and the top of the water tank 601 is connected to the top of the inner cavity of the top frame 1, and the top of the water tank 601 is connected to the water pipe 5. The inside of the water tank 601 is movably sleeved with a piston plate 602, and a limit spring 605 is fixedly connected between the top of the piston plate 602 and the inner cavity of the water tank 601. A piston rod 603 is fixedly installed at the bottom end of the piston plate 602, and the bottom end of the piston rod 603 passes through the bottom end of the water tank 601 and is connected to the top of the top plate 101. The left and right sides near the bottom are fixedly connected with drainage pipes 604. When the bottom end of the piston plate 602 contacts the bottom end of the inner cavity of the water storage tank 601, the piston plate 602 is located below the output end of the piston rod 603, and the limit spring 605 is in an extreme tension state.

[0035] Embodiment: When cutting, the high-pressure water flow is introduced into the interior of the water tank 601 and drives the piston plate 602 to move downward. When the piston plate 602 moves down to the lowest point, the high-pressure water flow is then discharged through the drain pipe 604. The high-pressure water flow discharged through the drain pipe 604 then acts on the surface of the metal plate and the cutting blade 104 to cool the metal plate and remove metal debris generated during cutting, thereby completing the auxiliary cooling process.

[0036] By utilizing the high-pressure water used in the downward movement of the cutting blade 104 and realizing limited support through the action of the high-pressure water, the derived high-pressure water can also be directly used to act on the surface of the metal plate being cut. The high temperature on the surface of the metal plate is taken away by the flowing water flow, and the metal debris is taken away at the same time, thereby avoiding deformation of the metal plate caused by high temperature during the cutting process and improving the quality of the metal plate. When the top plate 101 moves downward under the action of the power assembly 6, the top plate 101 and the cutting blade 104 at the bottom can move downward synchronously. When the cutting blade 104 moves downward, the surface of the cutting blade 104 can contact the inner side of the cleaning groove 9, and the outer side of the cutting blade 104 is automatically cleaned through the cleaning groove 9 to complete the automatic cleaning before cutting. At the same time, after the cutting is completed, due to the automatic resetting of the power assembly 6, the top plate 101 and the cutting blade 104 also rise synchronously. At this time, the cutting blade 104 can contact the cleaning groove 9 again, so that the surface of the cutting blade 104 can be cleaned for the second time to complete the automatic cleaning process.

[0037] By utilizing the automatic up and down displacement process of the cutting blade 104 when cutting the metal plate, in conjunction with the fixed cleaning tank 9 and the water flow derived from the power component 6, the cutting blade 104 can be automatically cleaned before cutting and automatically cleaned after cutting. The entire process is completed automatically without manual assistance, which can effectively ensure the surface cleanliness of the cutting blade 104 before and after the metal plate cutting, thereby ensuring the quality of the metal plate cutting.

[0038] As shown in Figures 1, 3 and 8, the limiting assembly 11 includes a first fixed seat 111, the number of the first fixed seat 111 is two and they are symmetrically installed at the front and rear sides of the bottom end of the top plate 101, the end of the first fixed seat 111 away from the top plate 101 is movably connected to a connecting rod 113 through a rotating shaft, the end of the connecting rod 113 away from the first fixed seat 111 is movably connected to a second fixed seat 112 through a rotating shaft, the bottom end of the second fixed seat 112 is fixedly installed with a clamping block 114, and the clamping block 114 is movably clamped with the guide groove 8. The limiting assembly 11 also includes a pressing plate 115, the top of which is connected to the bottom ends of the two clamping blocks 114.

[0039] Embodiment: When cutting a metal plate, the external water pump can be turned on to output high-pressure water to the inside of the three-way valve 4, and the water enters the inside of the two power assemblies 6 after being distributed through the water pipe 5. At this time, the piston plate 602 can be driven to move downward, and the limit spring 605 is compressed, and at the same time, the piston rod 603 and the top plate 101 are driven to move downward until the cutting blade 104 moves to the cutting position. When the top plate 101 moves downward, the connecting rod 113 is deflected in the direction away from the top plate 101. At this time, the left and right multiple blocks 114 move away from each other under the action of the guide groove 8, and drive the two pressure plates 115 to move away from each other. At this time, the two pressure plates 115 can support the left and right ends of the metal plate cutting area. When the cutting assembly 10 completes the cutting of the metal plate, the power assembly 6 can be controlled to automatically reset. At this time, the cutting assembly 10 automatically rises, and the conveying roller 3 is turned on to drive the cut metal plate to move. When the metal plate enters the cutting area again, the cutting assembly 10 is continued to be controlled. Move downward, and the limiting assembly 11 automatically supports the two ends of the metal plate. Repeat the above process to complete the continuous cutting process of the metal plate.

[0040] By utilizing external high-pressure water and the cooperation between the cutting component 10, the limiting component 11 and the conveying roller 3, the metal plate does not need to be frequently manually loosened or tightened during the continuous cutting process. The continuous cutting process of the metal plate can be completed by controlling the start of the external water pump and the conveying of the conveying roller 3, thereby avoiding the complicated control process of traditional continuous processing, simplifying the operation steps and improving the cutting efficiency.

[0041] A cutting method for a cutting device for processing a metal sheet with a high aspect ratio, comprising the following steps: S1: Before cutting, the metal sheet to be cut is first fed into the device from one side of the conveyor roller 3, and the conveyor roller 3 is started to drive the metal sheet to move until the cutting area of ​​the metal sheet is moved to the bottom of the cutting assembly 10, at which time the conveyor roller 3 can be stopped, the metal sheet stops moving, and enters the state to be cut; S2: When cutting, the external water pump is turned on to output high-pressure water to the inside of the three-way valve 4, and then the water is output through the water pipe 5 and enters the inside of the water storage tank 601. At this time, the piston plate 602 moves downward, and drives the piston rod 603 to move downward, and finally drives the top plate 101 to move downward. When the top plate 101 moves downward, the cutting blade 104 at the bottom moves downward and contacts one side of the metal sheet, waiting for cutting; S3: When the top plate 101 moves downward, the connecting rod 113 deflects in a direction away from the top plate 101 and drives the two pressing plates 115 to move relatively away from each other. At this time, the two pressing plates 115 can contact the two ends of the metal plate and provide limited support to the two ends at the same time. At this time, the screw rod 105 and the cutting blade 104 can be opened to cut the metal plate. S3: During the cutting process, as the piston plate 602 moves to the lowest point, high pressure water is discharged through the drain pipe 604 and acts on the surface of the metal plate and the cutting blade 104 to cool them down and complete the debris cleaning process. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for processing a metal sheet with a high aspect ratio, comprising a top frame (1), characterized in that: A frame (2) is fixedly mounted on the bottom end of the top frame (1), and conveying rollers (3) are movably mounted on the inner side surface of the frame (2) at equal distances. Power assemblies (6) are fixedly mounted on both the front and rear sides of the top end of the inner cavity of the top frame (1), and a cutting assembly (10) is provided on the inner side surface of the top frame (1) and is located below the power assembly (6). The bottom ends of the two power assemblies (6) are connected to the top end of the cutting assembly (10). A fixing frame (7) is fixedly mounted on the inner side surface of the top frame (1) near the bottom end, and guide grooves (8) are provided on the fixing frame (7) near the four corners. A cleaning groove (9) is provided in the middle of the fixing frame (7), and the cutting assembly (10) is located directly above the cleaning groove (9). Limiting assemblies (11) are fixedly mounted on the left and right sides of the bottom end of the cutting assembly (10), and the limiting assembly (11) is movably engaged with the guide groove (8).

2. A cutting device for processing a metal sheet with a high aspect ratio according to claim 1, characterized in that: The cutting assembly (10) comprises a top plate (101), the top end of the top plate (101) being fixedly connected to the power assembly (6), a guide groove (102) being provided in the middle of the bottom end of the top plate (101), a guide block (103) being movably engaged inside the guide groove (102), and the guide block (103) being displaceable forward and backward relative to the guide groove (102).

3. A cutting device for processing a metal sheet with a high aspect ratio according to claim 2, characterized in that: A cutting blade (104) is fixedly mounted on the bottom end of each guide block (103); a threaded groove is provided inside each guide block (103) and is threadedly connected to a lead screw (105); an extension seat (106) is fixedly mounted on one side of each top plate (101); a servo motor (107) is fixedly mounted on the inner side surface of each extension seat (106); an output end of each servo motor (107) is fixedly connected to the lead screw (105); and the lead screw (105) is movably connected to the guide groove (102).

4. A cutting device for processing a metal sheet with a high aspect ratio according to claim 3, characterized in that: A three-way valve (4) is fixedly mounted in the middle of the top of the top frame (1); the top of the three-way valve (4) is connected to an external water pump; the front and rear ends of the three-way valve (4) are both fixedly connected to water pipes (5); the bottom ends of the water pipes (5) are connected to the tops of two power components (6).

5. The cutting device for processing a metal sheet with a high aspect ratio according to claim 4, characterized in that: The power assembly (6) comprises a water storage tank (601), the top end of the water storage tank (601) is connected to the top end of the inner cavity of the top frame (1), the top end of the water storage tank (601) is connected to the water pipe (5), the interior of the water storage tank (601) is movably sleeved with a piston plate (602), and a limit spring (605) is fixedly connected between the top end of the piston plate (602) and the inner cavity of the water storage tank (601).

6. A cutting device for processing a metal sheet with a high aspect ratio according to claim 5, characterized in that: A piston rod (603) is fixedly mounted on the bottom end of the piston plate (602); the bottom end of the piston rod (603) passes through the bottom end of the water storage tank (601) and is connected to the top end of the top plate (101); both left and right sides of the water storage tank (601) near the bottom end are fixedly connected to drainage pipes (604); when the bottom end of the piston plate (602) contacts the bottom end of the inner cavity of the water storage tank (601), the piston plate (602) is located below the output end of the piston rod (603), and the limit spring (605) is in an extreme tension state.

7. A cutting device for processing a metal sheet with a high aspect ratio according to claim 6, characterized in that: The limiting assembly (11) comprises a first fixing seat (111), wherein the first fixing seats (111) are two in number and are symmetrically mounted at front and rear sides of the bottom end of the top plate (101), and one end of the first fixing seat (111) away from the top plate (101) is movably connected to a connecting rod (113) via a rotating shaft.

8. The cutting device for processing a metal sheet with a high aspect ratio according to claim 7, characterized in that: One end of the connecting rod (113) away from the first fixing seat (111) is movably connected to the second fixing seat (112) via a rotating shaft, and a clamping block (114) is fixedly installed at the bottom end of the second fixing seat (112), and the clamping block (114) is movably clamped with the guide groove (8). The limiting assembly (11) also includes a pressing plate (115), and the top end of the pressing plate (115) is connected to the bottom ends of the two clamping blocks (114).

9. The cutting method of the cutting device for processing a metal sheet with a high aspect ratio according to claim 8, characterized in that: The following steps are involved: S1: Before cutting, the metal sheet to be cut is first fed into the device from one side of the conveyor roller (3), and the conveyor roller (3) is started to drive the metal sheet to move until the cutting area of ​​the metal sheet is moved to the position directly below the cutting assembly (10). At this time, the conveyor roller (3) can be stopped, and the metal sheet stops moving, entering a state to be cut; S2: When cutting, the external water pump is turned on to output high-pressure water to the inside of the three-way valve (4), and then the water is output through the water pipe (5) and enters the inside of the water storage tank (601). At this time, the piston plate (602) moves downward, driving the piston rod (603) to move downward, and finally driving the top plate (101) to move downward. When the top plate (101) moves downward, the cutting blade (104) at the bottom moves downward and contacts one side of the metal sheet, waiting for cutting; S3: When the top plate (101) moves downward, the connecting rod (113) deflects in a direction away from the top plate (101) and drives the two pressing plates (115) to move relatively away from each other. At this time, the two pressing plates (115) can contact the two ends of the metal plate and provide limited support thereto at the same time. At this time, the screw rod (105) and the cutting blade (104) can be opened to cut the metal plate. S3: During the cutting process, as the piston plate (602) moves to the lowest point, high-pressure water is discharged through the drain pipe (604) and acts on the surface of the metal plate and the cutting blade (104) to cool them down, while completing the debris cleaning process.

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