A battery shell sheet metal bending forming system

Abstract

The embodiment of the present application provides a battery shell sheet metal bending forming system, and belongs to the technical field of battery shell sheet metal. The system comprises: an uncoiler for carrying a coiled plate material and rotating and uncoiling the plate material according to needs to release the plate material; a leveler arranged at the side of the uncoiler to receive the plate material released by the uncoiler and to stress relieve and correct and level the plate material; two end trimmers arranged at the side of the leveler and receiving the plate material after stress relief and leveling by the leveler to trim the two ends of the plate material according to needs; a step feeder arranged at the side of the two end trimmers to convey the trimmed plate material out of the two end trimmers; and a cutting machine arranged at the side of the step feeder to receive the plate material conveyed by the step feeder. The system can ensure machining precision and improve machining efficiency.

Description

Technical Field

[0001] This invention relates to the field of sheet metal technology for battery casings, and more specifically to a sheet metal bending and forming system for battery casings. Background Technology

[0002] Sheet metal bending and forming is a key process in battery casing manufacturing, directly affecting the structural strength, dimensional accuracy, and production efficiency of the battery casing. With the rapid development of industries such as new energy vehicles and consumer electronics, the market has placed higher demands on the appearance quality, processing accuracy, and production efficiency of sheet metal structural components such as lithium battery casings. However, existing sheet metal bending and forming systems still have significant limitations in terms of accuracy and efficiency. The processing accuracy of existing sheet metal processing systems is insufficient, and the current multi-process, decentralized operation mode severely restricts processing efficiency. In some processes, manual processing is still required, further limiting efficiency. Therefore, a battery casing sheet metal bending and forming system is needed that can improve processing efficiency while ensuring processing accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide a battery casing sheet metal bending and forming system that can improve processing efficiency while ensuring processing accuracy.

[0004] To achieve the above objectives, embodiments of the present invention provide a battery casing sheet metal bending and forming system, the system comprising: An uncoiler is used to take a sheet of material that has been rolled into a coil and, as needed, rotate it to unwind and release the sheet. A leveling machine is located on the side of the uncoiler to receive the sheet material released by the uncoiler and to relieve stress and level the sheet material. The two-end trimming machine is set on the side of the leveling machine and receives the plate material after the leveling machine has leveled and relieved stress, so as to trim the two ends of the plate material as needed. A stepper feeder is installed on the side of the two end trimmers to convey the trimmed sheet material out of the two end trimmers; A cutting machine is installed on the side of the stepper to receive the sheet material conveyed by the stepper and to cut the conveyed sheet material into smaller pieces. The discharge turning machine is set on the side of the cutting machine to receive the sheet material cut by the cutting machine and turn the sheet material 180 degrees so that the punching burrs of the sheet material face upwards. A positioning machine is installed on the side of the discharge flipper to receive the sheet material after it has been flipped by the discharge flipper and to position the sheet material. A sheet material conveyor line is set on the side of the positioning machine to clamp and position the sheet material and convey it. The two-end bending machine is set on both sides of the sheet material conveying line that do not contact the positioning machine, so that when the sheet material conveying line conveys the sheet material to the position of the two-end bending machine, the two ends of the positioned sheet material are bent as required, without affecting the conveying of the sheet material on the sheet material conveying line; A U-shaped bending machine is located on the side of the sheet material conveyor line away from the positioning machine to receive the sheet material after both ends have been bent, and to bend the sheet material into a U-shape as required. A discharge robot arm is positioned on the side of the U-shaped bending machine to clamp the sheet metal bent into a U-shape and transport the sheet metal out from the station of the U-shaped bending machine; A coding machine is installed on the side of the unloading robot to code the sheet material as the unloading robot grips the sheet material and passes the station of the coding machine.

[0005] Through the above technical solution, the battery casing sheet metal bending and forming system provided by the present invention can unwind a coiled sheet metal as needed using an uncoiler to release the sheet metal. A leveling machine can be located on the side of the uncoiler to receive the sheet metal released from the uncoiler and to relieve stress and level the sheet metal. An end trimming machine can be located on the side of the leveling machine to receive the stress-relieved sheet metal and to trim the ends of the sheet metal as needed. A stepping feeder can be located on the side of the end trimming machines to convey the trimmed sheet metal from the end trimming machines. A cutting machine can be located on the side of the stepping feeder to receive the sheet metal conveyed by the stepping feeder and to cut the conveyed sheet metal into smaller pieces. The output flipper can be located on the side of the cutting machine to receive the sheet metal cut by the cutting machine and flip the sheet metal 180 degrees so that the punching burrs of the sheet metal face upwards, preventing the burrs from facing inwards during subsequent bending, which would affect the subsequent filling of battery cells and the safety of the cells. The positioning machine can be located on the side of the output flipper to receive the sheet metal after it has been flipped and to position it. The sheet metal conveyor line can be located on the side of the positioning machine to clamp and convey the positioned sheet metal. The two-end bending machines can be located on the sides of the sheet metal conveyor line that are not in contact with the positioning machines, so that when the sheet metal conveyor line conveys the sheet metal to the two-end bending machines, the two ends of the positioned sheet metal can be bent as needed without affecting the conveying of the sheet metal on the sheet metal conveyor line. The U-shaped bending machine can be located on the side of the sheet metal conveyor line away from the positioning machine, so that it can receive the sheet metal after the two ends have been bent and can bend the sheet metal into a U-shape as needed. The unloading robot can be positioned on the side of the U-shaped bending machine to grip the sheet metal bent into a U-shape and transport it out of the machine's station. A marking machine can be positioned on the side of the unloading robot to mark the sheet metal as it passes the machine's station. This system operates entirely through the coordinated mechanical components at each station during battery casing sheet metal processing, eliminating the need for manual intervention and thus improving efficiency while ensuring processing accuracy.

[0006] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0007] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the sheet metal flow of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 2 This is a three-dimensional schematic diagram of the end trimming machine of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 3 This is a front view of the end trimming machine of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 4 This is a side view of the end trimming machine of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 5 This is a three-dimensional view of a stepper feeder in a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 6 This is a side view of a cutting machine for a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 7 This is a three-dimensional view of the discharge turning machine of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 8 This is a three-dimensional view of a positioning machine for a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 9 This is a front view of a positioning machine for a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 10 This is a first three-dimensional view of the bending machine at both ends of a battery casing sheet metal bending forming system according to an embodiment of the present invention; Figure 11 This is a second three-dimensional view of the end bending machine of a battery casing sheet metal bending forming system according to an embodiment of the present invention; Figure 12 This is a three-dimensional view of a U-shaped machine for a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 13 This is a first three-dimensional view of a material unloading robot of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 14 This is according to one embodiment of the present invention. Figure 13 Enlarged view of point A in the middle; Figure 15 This is a second three-dimensional schematic diagram of a material unloading robot of a battery casing sheet metal bending and forming system according to an embodiment of the present invention; Figure 16 This is according to one embodiment of the present invention. Figure 13 Enlarged diagram of point B in the middle. Detailed Implementation

[0008] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0009] In this invention, Figures 1 to 16The accompanying drawings are provided according to embodiments of the present invention. The present invention provides a battery casing sheet metal bending and forming system, which may include: an uncoiler 1, a leveler 2, an end-trimming machine 3, a stepping feeder 4, a cutter 5, a discharge flipping machine 6, a positioning machine 7, a sheet metal conveying line 8, an end-bending machine 9, a U-shaped bending machine 10, a discharge robot 11, and a coding machine 12. The uncoiler 1 can rotate and uncoil a coiled sheet metal as needed to release it. The leveler 2 can be located on the side of the uncoiler 1, thereby receiving the sheet metal released by the uncoiler 1 and performing stress relief and leveling on the sheet metal. The end-trimming machine 3 can be located on the side of the leveler 2, and receives the stress-relieved sheet metal after leveling by the leveler 2, thereby trimming the ends of the sheet metal as needed. The stepping feeder 4 can be located on the side of the end-trimming machine 3, thereby conveying the trimmed sheet metal from the end-trimming machine 3. The cutting machine 5 can be located on the side of the stepper feeder 4 to receive the sheet material conveyed by the stepper feeder 4 and to cut the conveyed sheet material into smaller pieces. The output flipper 6 can be located on the side of the cutting machine 5 to receive the sheet material cut by the cutting machine 5 and to flip the sheet material 180 degrees so that the punching burrs of the sheet material face upwards, preventing the burrs from facing inwards during subsequent bending, which would affect the subsequent filling of battery cells and the safety of the cells. The positioning machine 7 can be located on the side of the output flipper 6 to receive the sheet material after it has been flipped and to position the sheet material. The sheet material conveyor line 8 can be located on the side of the positioning machine 7 to clamp and convey the positioned sheet material. The two-end bending machine 9 can be positioned on both sides of the sheet metal conveyor line 8, away from the positioning machine 7. This allows the machine to bend the positioned sheet metal at both ends as needed when the sheet metal is conveyed to the bending machine 9, without affecting the sheet metal's transport on the conveyor line. The U-shaped bending machine 10 can be positioned on the side of the sheet metal conveyor line 8 away from the positioning machine 7. This machine can receive the sheet metal after both ends have been bent and can bend it into a U-shape as needed. The unloading robot 11 can be positioned on the side of the U-shaped bending machine 10 to hold the U-shaped sheet metal and remove it from the U-shaped bending machine 10's station. The marking machine 12 can be positioned on the side of the unloading robot 11 to mark the sheet metal as it passes the marking machine 12's station. This system utilizes the coordinated mechanical components at each station throughout the battery casing sheet metal processing process, eliminating the need for manual intervention. This ensures processing accuracy while improving processing efficiency.

[0010] In one embodiment of the present invention, the two-end trimming machine 3 may include: a bottom support plate 301, a punching die 302, a first roll material support frame 304, a first side symmetrical roller 305, a first side active roller 306, a first side driven roller 307, an eighth hydraulic cylinder 308, and a first rotary motor 309. The bottom support plate 301 may be disposed on the side of the leveling machine 2. The number of punching dies 302 may be two, and they may be symmetrically disposed at both ends of the bottom support plate 301. A support bracket 303 may be provided between the two punching dies 302. The support bracket 303 can support the sheet material and does not affect the punching and trimming of the sheet material on the punching die 302.

[0011] The punching die machine 302 may include: a punching support frame 3020, a first sheet metal support platform 3022, a sheet metal cutting table 3023, a first conveyor belt 3024, a first slide rail support plate 3025, a first slider 3027, and a second hydraulic cylinder 3028. The punching support frame 3020 may be mounted on the bottom support plate 301, and the first hydraulic cylinder 3021 may be mounted on the top of the punching support frame 3020. The first sheet metal support platform 3022 may be located in the middle of the punching support frame 3020, thereby supporting the sheet metal, and both ends of the sheet metal may extend beyond the first sheet metal support platform 3022. The sheet metal cutting table 3023 can be installed on top of the first sheet metal support table 3022 and connected to the telescopic rod of the first hydraulic cylinder 3021. It can be driven downwards by the first hydraulic cylinder 3021, and during this downward movement, it can cooperate with the first sheet metal support table 3022 to cut both ends of the sheet metal on the first sheet metal support table 3022, thus completing the trimming of the sheet metal. The first conveyor belt 3024 can be installed at the bottom of the first sheet metal support table 3022. Therefore, during sheet metal cutting, the waste material can fall from the first sheet metal support table 3022 and onto the first conveyor belt 3024, where it is conveyed to a designated location, such as a waste cart. The first slide rail support plate 3025 can be installed on the bottom bearing plate 301, and a first slide rail 3026 can be provided on the first slide rail support plate 3025. The first slider 3027 can be mounted on the first slide rail 3026. The top of the first slider 3027 can be connected to the bottom of the punching support frame 3020, thereby driving the punching support frame 3020 to move along the first slide rail 3026. There can be two punching support frames 3020, symmetrically arranged at both ends of the bottom support plate 301. Therefore, when moving along the first slide rail 3026, the two punching support frames 3020 can move closer to or further away from each other. Thus, when cutting sheet metal, the distance between the two punching support frames 3020 can be adjusted according to the width of the sheet metal, allowing the sheet metal cutting table 3023 and the first sheet metal support table 3022 on the two punching support frames 3020 to better cut and trim the sheet metal. The second hydraulic cylinder 3028 can be mounted on the bottom support plate 301 and connected to the bottom of the punching support frame 3020, so that the punching support frame 3020 can be moved on the first slide rail 3026 as needed to adjust the distance between the two punching support frames 3020.

[0012] The first roll support frame 304 can be mounted on the bottom bearing plate 301 and positioned between the punching die machine 302 and the leveling machine 2. The first side symmetrical roller 305 can be mounted on top of the first roll support frame 304. The sheet material can be conveyed from the leveling machine 2 and then pass between the first side symmetrical rollers 305, which flatten the material as it passes through. The first side drive roller 306 can be mounted on top of the first roll support frame 304 and positioned on the side of the first side symmetrical roller 305 closest to the punching die machine 302. The first side driven roller 307 can be mounted on top of the first side drive roller 306. The sheet material can pass between the first side drive roller 306 and the first side driven roller 307, and the first side drive roller 306 can rotate to move the passing sheet material. The eighth hydraulic cylinder 308 can be disposed at both ends of the first roll support frame 304. The eighth hydraulic cylinder 308 can be connected to both ends of the first side driven roller 307, thereby driving the first side driven roller 307 to move vertically, thus allowing the first side driven roller 307 to move closer to or further away from the first side driving roller 306. Therefore, adjusting the gap between the first side driving roller 306 and the first side driven roller 307 according to the size of the sheet material can be achieved through the eighth hydraulic cylinder 308. The first rotary motor 309 can be disposed on the side of the first roll support frame 304 and can be connected to the first side driving roller 306, thereby driving the first side driving roller 306 to rotate, thus transmitting the sheet material.

[0013] In one embodiment of the present invention, the stepper feeder 4 may include: a stepper support frame 400, a sheet metal support block 401, a pressure block 402, a third hydraulic cylinder 403, a second slide rail 404, a fourth hydraulic cylinder 406, a guide support frame 407, a guide block 408, a third slide rail 409, a fifth hydraulic cylinder 410, and a multi-layer spaced support plate 411. The stepper support frame 400 may be disposed on the bottom bearing plate 301 and may be disposed on the side of the punching die machine 302 away from the leveling machine 2. The sheet metal support block 401 may be disposed in the middle of the stepper support frame 400, thereby supporting the sheet metal. The pressure block 402 may be disposed on the top of the sheet metal support block 401 and may be close to the sheet metal support block 401, thereby pressing down and cooperating with the sheet metal support block 401 to clamp the sheet metal. When the two-end trimming machines 3 complete the trimming of the sheet metal, the sheet metal support block 401 and the pressure block 402 can move to the vicinity of the two-end trimming machines 3, then clamp the trimmed sheet metal and drive it to move away from the two-end trimming machines 3. The third hydraulic cylinder 403 can be set on the top of the stepping support frame 400, and the bottom telescopic shaft of the third hydraulic cylinder 403 can be connected to the pressure block 402, thereby driving the pressure block 402 to move vertically and pressing down to cooperate with the sheet metal support block 401 to clamp the sheet metal. The second slide rail 404 can be set on the bottom bearing plate 301 and can be set on the side of the punching die machine 302 away from the leveling machine 2. The second slide rail 404 can be provided with a second slider 405. The stepping support frame 400 can be set on the second slider 405, thereby being driven to move closer to or away from the punching die machine 302 along the second slide rail 404. The fourth hydraulic cylinder 406 can be mounted on the bottom support plate 301, and the telescopic shaft of the fourth hydraulic cylinder 406 can be connected to the stepping support frame 400, thereby driving the stepping support frame 400 to move closer to or away from the punching die machine 302 along the second slide rail 404. When it is necessary to move the punched sheet metal, the fourth hydraulic cylinder 406 can drive the stepping support frame 400 closer to the punching die machine 302. Then, when it approaches the punching die machine 302, the pressure block 402 can separate from the sheet metal support block 401. When the sheet metal reaches between the pressure block 402 and the sheet metal support block 401, the pressure block 402 can press down and cooperate with the sheet metal support block 401 to clamp the cut sheet metal. Then, the fourth hydraulic cylinder 406 can drive the stepping support frame 400 away from the punching die machine 302, and the clamped sheet metal can also be driven away from the punching die machine 302, thereby completing the transportation of the sheet metal.

[0014] The guide support frame 407 can be mounted on the bottom support plate 301 and can be positioned on the side of the stepping support frame 400 away from the punching die machine 302. The guide blocks 408 can be mounted at both ends of the guide support frame 407 to guide the sheet metal transported by the stepping support frame 400. The third slide rail 409 can be mounted on the guide support frame 407 and can be connected to the bottom of the guide blocks 408 via a third slider, allowing the guide blocks 408 to move closer or further apart along the third slide rail 409. There can be two fifth hydraulic cylinders 410, which can be respectively mounted at both ends of the guide support frame 407 and connected to the guide blocks 408 at both ends, thereby driving the guide blocks 408 to move closer or further apart. A multi-layer spacer support plate 411 can pass through the stepping support frame 400 and the guide support frame 407 to support the sheet metal. When the sheet metal support block 401 and pressure block 402 on the stepping support frame 400 cooperate to clamp the sheet metal and bring it close to the guide support frame 407, the guide block 408 can guide the sheet metal clamped by the sheet metal support block 401 and pressure block 402, preventing the sheet metal from shifting. When guiding the sheet metal, the distance between the two guide blocks 408 can be controlled by the fifth hydraulic cylinder 410 according to the size of the sheet metal, allowing the guide blocks 408 to better guide the sheet metal. The multi-layer spaced support plate 411 can support the sheet metal, and because the multi-layer spaced support plate 411 can be spaced apart, the clamping or guiding parts can be between the intervals of the multi-layer spaced support plate 411, thus supporting the sheet metal without affecting the clamping and guiding of the sheet metal.

[0015] In one embodiment of the present invention, the cutting machine 5 may include: a cutting machine base 500, a cutting support frame 502, a cutting plate 504, a fourth slide rail 505, a seventh hydraulic cylinder 506, and a second conveyor belt 507. The cutting machine base 500 may be disposed on the bottom support plate 301 and may be disposed on the side of the stepper feeder 4 away from the two end trimmers 3, so as to receive the sheet material conveyed from the stepper feeder 4. The cutting machine base 500 may be provided with a punching support plate 501, so as to support the conveyed sheet material. The cutting support frame 502 may be disposed on the top of the cutting machine base 500, and a sixth hydraulic cylinder 503 may be disposed on the top of the cutting support frame 502. The cutting plate 504 may be disposed above the cutting support plate 501 and may be connected to the sixth hydraulic cylinder 503, so as to be driven closer to the punching support plate 501. When the sheet metal is conveyed onto the punching support plate 501, the cutting plate 504 can press down and cooperate with the punching support plate 501 to cut the sheet metal delivered to the current workstation. The fourth slide rail 505 can be set on the bottom support plate 301, and the cutting machine base 500 can be set on the fourth slide rail 505, thereby moving closer to or away from the stepper feeder 4 along the fourth slide rail 505. Therefore, when it is necessary to adjust the distance between the cutting machine base 500 and the stepper feeder 4, the distance between the cutting machine base 500 and the stepper feeder 4 can be adjusted along the fourth slide rail 505 to better adapt to the size of the sheet metal. The seventh hydraulic cylinder 506 can be set on the bottom support plate 301 and can be connected to the cutting machine base 500, thereby driving the cutting machine base 500 closer to or away from the stepper feeder 4 as needed. The second conveyor belt 507 can be set at the bottom of the cutting machine base 500. When the components on the cutting machine base 500 cut the sheet metal, the waste generated by the cutting can fall onto the second conveyor belt 507, and then the second conveyor belt 507 can transport the fallen waste to a designated location.

[0016] In one embodiment of the present invention, the discharge tilting machine 6 may include: a tilting support base 600, a tilting support frame 601, a tilting fork 603, a tilting conveyor frame 604, a tilting conveyor motor 605, multiple sets of conveyor belts 606, and a transmission clamping component 607. The tilting support base 600 may be disposed on the side of the cutter 5 away from the stepper feeder 4. The tilting support frame 601 may be disposed in the middle of the tilting support base 600, and a second rotary motor 602 may be provided on the top of the tilting support frame 601. The rotation shaft of the second rotary motor 602 may be rotatably connected to both ends of the top of the tilting support frame 601. The flipping fork 603 can be symmetrically arranged on both sides of the flipping support frame 601 and can be connected to the rotating shaft of the second rotating motor 602. Thus, when the second rotating motor 602 rotates, the flipping fork 603 can also be driven to flip 180 degrees. Therefore, after clamping the sheet material, the sheet material can also be driven to flip 180 degrees, and the sheet material on one side of the flipping support frame 601 can be flipped to the other side of the flipping support frame 601. The flipping conveyor frame 604 can be symmetrically arranged on both sides of the flipping support frame 601. The flipping conveyor motor 605 can be mounted on the flipping support base 600 and can be symmetrically arranged on both sides of the flipping support frame 601. The drive shaft of the flipping conveyor motor 605 can pass through the bottom of the flipping conveyor frame 604. The multiple sets of transmission belts 606 can be mounted on the flipping conveyor frame 604 and can all bypass the drive shaft of the flipping conveyor motor 605. Therefore, the multiple sets of transmission belts 606 can be coaxially driven by the flipping conveyor motor 605, so the multiple sets of transmission belts 606 on one side of the flipping support frame 601 can transmit in the same direction and synchronously, allowing the sheet material on it to be transmitted synchronously. Furthermore, the multiple sets of transmission belts 606 on both sides of the flipping support frame 601 have the same transmission direction. Therefore, the multiple sets of transmission belts 606 on the flipping support frame 601 can transport the sheet material close to the flipping support frame 601 and then to the flipping fork 603. The flipping fork 603 can rotate 180 degrees, flipping the sheet material to the other side of the flipping support frame 601. Then, the multiple sets of transmission belts 606 on the other side can transport the flipped sheet material to the designated position.

[0017] The conveying clamping component 607 can be disposed on the side of the flipping support frame 601 near the cutting machine 5, and can also be disposed in the middle of the multiple sets of conveyor belts 606, thereby clamping and conveying the sheet metal cut by the cutting machine 5 onto the conveyor belts 606. The conveying clamping component 607 may include: a conveying guide rail 6070, a conveying slide rail 6072, a gripper 6074, a first suction cup 6075, a conveying cylinder 6076, and a drive motor 6077. The conveying guide rail 6070 can be disposed on one side of the flipping support frame 601, and can also be disposed in the middle of the multiple sets of conveyor belts 606. A conveying bracket 6071 can be provided on the conveying guide rail 6070. The conveying bracket 6071 can move along the conveying guide rail 6070. The conveyor rail 6072 can be mounted on the conveyor bracket 6071, and the clamping bracket 6073 can be mounted on the conveyor rail 6072 via a conveyor slider, allowing it to move vertically along the conveyor rail 6072. The grippers 6074 can be mounted at both ends of the clamping bracket 6073, allowing them to be moved closer to the cutting machine 5 to clamp the sheet metal being cut. It is understood that the cutting support frame 502 and cutting plate 504 of the cutting machine 5 have clearance space on the side near the discharge tilting machine 6. The grippers 6074 reach the clearance space of the cutting support frame 502 and cutting plate 504 and then clamp the cut sheet metal. The first suction cup 6075 can be mounted in the middle of the clamping bracket 6073, allowing it to absorb the sheet metal while the grippers 6074 are clamping it. The conveying cylinder 6076 can be mounted on the conveying bracket 6071 and connected to the clamping bracket 6073, thereby driving the clamping bracket 6073 to move vertically. The drive motor 6077 can be mounted on the flipping support 600, and the drive motor 6077 can be connected to the conveying bracket 6071 via a ball screw, thereby driving the conveying bracket 6071 to move closer to or away from the cutting machine 5.

[0018] When the sheet metal needs to be clamped, the gripper 6074 can be moved closer to the cutting machine 5 to clamp the cut sheet metal. After clamping, the drive motor 6077 can move the conveyor bracket 6071 away from the cutting machine 5, and the clamped sheet metal can be moved onto the conveyor belt 606 by the gripper 6074. After the sheet metal is moved onto the conveyor belt 606, the conveyor bracket 6073 can be moved downwards, and the gripper 6074 on the gripper bracket 6073 will also be moved downwards, thus avoiding the sheet metal on the conveyor belt 606 and not affecting the transport of the sheet metal. After the sheet metal is transported by the conveyor belt 606, the conveyor bracket 6073 can be moved upwards, and the gripper 6074 on it can also be moved upwards to the normal working position, and then moved closer to the cutting machine 5 to continue clamping the cut sheet metal, and then clamping it onto the conveyor belt 606.

[0019] In one embodiment of the present invention, the positioning machine 7 may include: a positioning support base 700, a second sheet metal support platform 701, a positioning clamping support frame 702, a first positioning motor 704, a first transverse positioning bracket 705, a first transverse positioning motor 706, a first vertical positioning frame 707, a first vertical positioning cylinder 708, a first transverse positioning block 709, a second transverse positioning bracket 710, a second transverse positioning motor 711, a second vertical bracket 712, a second vertical positioning cylinder 713, and a second transverse positioning block 714. The positioning support base 700 may be disposed on the side of the flipping support base 600 away from the discharge flipping machine 6. The second sheet metal support platform 701 may be transversely disposed on the positioning support base 700, and may be disposed on the axis of symmetry of the positioning support base 700, and may support the conveyed sheet metal. The positioning clamping support frame 702 may be disposed on the side of the positioning support base 700 close to the discharge flipping machine 6, and may be disposed on both sides of the second sheet metal support platform 701. Upper and lower positioning blocks 703 can be provided on the positioning clamping support frame 702. The upper and lower positioning blocks 703 can move closer to or further away from each other along the positioning clamping support frame 702. Therefore, when positioning the sheet metal, the orientation of the sheet metal can be determined by observing the sheet metal from a top-down perspective through the X and Y axes, and the upper and lower positioning blocks 703 can position the sheet metal in the Y-axis direction. The first positioning motor 704 can be symmetrically arranged on the positioning clamping support frame 702, and can be connected to the corresponding upper and lower positioning blocks 703 through ball screws, thereby driving the upper and lower positioning blocks 703 to move closer to or further away from each other. The first transverse positioning bracket 705 can be arranged on the side of the positioning support base 700 near the discharge tilting machine 6 through a slide rail, thereby moving closer to or further away from the discharge tilting machine 6. The first transverse positioning motor 706 can be connected to the first transverse positioning bracket 705 through a ball screw, thereby driving the first transverse positioning bracket 705 to move closer to or further away from the discharge tilting machine 6. The first vertical positioning frame 707 can be slidably mounted on the first horizontal positioning bracket 705, allowing it to move vertically. The first vertical positioning cylinder 708 can be mounted on the first horizontal positioning bracket 705 and connected to the first vertical positioning frame 707, thereby driving the first vertical positioning frame 707 to move vertically. The first horizontal positioning block 709 can be mounted on the first vertical positioning frame 707, allowing it to be moved downwards when approaching the discharge tilting machine 6, and then upwards during the gap of the conveyor belt 606 when reaching its position, so that the height of the first horizontal positioning block 709 exceeds the height of the sheet metal on the conveyor belt 606. When the first horizontal positioning block 709 is moved away from the discharge tilting machine 6, it can cause the sheet metal to retract onto the second sheet metal support platform 701, completing the transfer of the sheet metal.

[0020] The second transverse positioning bracket 710 can be slidably disposed on both sides of the second sheet metal support platform 701. The second transverse positioning motor 711 can be disposed on the positioning support base 700 and can be connected to the second transverse positioning bracket 710 via a ball screw, thereby driving the second transverse positioning bracket 710 closer to or further away from the first transverse positioning bracket 705. The second vertical bracket 712 can be slidably disposed on the second transverse positioning bracket 710, and thus can move vertically along the second transverse positioning bracket 710. The second vertical positioning cylinder 713 can be disposed on the second transverse positioning bracket 710 and can be connected to the second vertical bracket 712, thereby driving the second vertical bracket 712 to move vertically. The second transverse positioning block 714 can be symmetrically disposed on the second vertical bracket 712, thereby being driven upward during positioning and able to move closer to the first transverse positioning bracket 705, cooperating with the first transverse positioning block 709 to position the sheet metal in the X-axis direction. Once positioned, it can be moved downwards to avoid affecting the subsequent movement of the sheet material.

[0021] In one embodiment of the present invention, the sheet metal conveying line 8 may include: a top clamping support frame 800, a top clamping support plate 801, a bottom clamping support frame 804, and a first clamping support plate 805. The top clamping support frame 800 may be disposed on the positioning support base 700 and on top of the second sheet metal support platform 701. The top clamping support plate 801 may be slidably disposed on the bottom of the top clamping support frame 800, thereby allowing it to move along the length of the top clamping support frame 800. Downward pressure cylinders 802 may be evenly arranged at the bottom of the top clamping support plate 801. A first pressure block 803 may be provided at the bottom of the downward pressure cylinder 802. The bottom clamping support frame 804 may be disposed on the positioning support base 700 and on the bottom of the second sheet metal support platform 701. The bottom clamping support plate 805 may be slidably disposed on top of the bottom clamping support frame 804. Upper pressure cylinders 806 can be evenly arranged on the top of the bottom clamping support plate 805. A second pressure block 807 can be provided on the top of each upper pressure cylinder 806. Multiple sets of first pressure blocks 803 and second pressure blocks 807 can be used, and the second pressure blocks 807 can be symmetrically arranged on both sides of the second sheet metal support platform 701. Therefore, when the first pressure blocks 803 and second pressure blocks 807 cooperate to clamp the sheet metal, the second pressure block 807 can be moved upwards by the upper pressure cylinders 806 to the same height as the second sheet metal support platform 701, and then cooperates with the first pressure blocks 803 to clamp the sheet metal on both sides of the second sheet metal support platform 701. In this way, the sheet metal can be clamped without affecting the support provided by the second sheet metal support platform 701 to the sheet metal. Because the first clamping block 803 and the second clamping block 807 can be in multiple sets and arranged on the bottom clamping support plate 805 and the top clamping support plate 801, when clamping the sheet metal, the sheet metal from one station can be clamped and transported to another station, and the sheet metal from another station can be clamped and transported to other stations. Therefore, after the sheet metal is positioned, the first clamping block 803 and the second clamping block 807 work together to hold the sheet metal, and the sheet metal at the positioning station can be transported to the next station, and the sheet metal at the next station can be transported to the remaining stations. Through this cycle, the movement of the sheet metal can be accelerated.

[0022] In one embodiment of the present invention, the two-end bending machine 9 may include: a bending support frame 900, a bottom support block 901, a top support block 902, a top cylinder 903, a bending bracket 904, a bending motor 906, a horizontal moving table 907, a horizontal cylinder 908, a bottom slide rail 909, and a bottom cylinder 910.

[0023] It can be understood that although the specific positions of the two-end bending machines 9 on both sides of the sheet metal conveyor line 8 are not shown in the figure, it is conceivable that the two-end bending machines 9 can be set at the next station after the sheet metal is clamped and positioned on the sheet metal conveyor line 8. Thus, after the sheet metal is positioned, the cooperation of the second pressure block 807 and the first pressure block 803 clamps the positioned sheet metal onto the station of the two-end bending machines 9, and then the two-end bending machines 9 can bend both ends of the positioned sheet metal. The bending support frame 900 can be symmetrically arranged on both sides of the second sheet metal support platform 701. The bottom support block 901 can be set on the side of the bending support frame 900 near the second sheet metal support platform 701, thereby supporting the sheet metal. The top support block 902 can be slidably set on the bending support frame 900 and can be set on top of the bottom support block 901, so that when the sheet metal is moved to the station of the two-end bending machines 9, it cooperates with the bottom support block 901 to clamp the sheet metal, and alternately clamps the sheet metal with the sheet metal conveyor line 8. A top cylinder 903 can be mounted on the top of the bending support frame 900 and connected to the top support block 902, thereby moving the top support block 902 closer to or further away from the bottom support block 901. A bending bracket 904 can be slidably mounted on the side of the bending support frame 900 away from the second sheet metal support table 701. A bending plate 905 can be mounted on the top of the bending bracket 904, thereby pressing down and bending the end of the sheet metal when the top support block 902 and the bottom support block 901 clamp it. A bending motor 906 can be mounted on the bottom of the bending support frame 900 and connected to the bending bracket 904 via a ball screw, thereby moving the bending bracket 904 vertically. A horizontal moving table 907 can be slidably mounted on the top of the bending bracket 904, and the bending plate 905 can be mounted on the horizontal moving table 907, thereby adjusting the distance between it and the bottom support block 901. A horizontal cylinder 908 can be mounted on top of the bending bracket 904 and connected to a horizontal moving table 907. This allows the horizontal moving table 907 to move closer to or away from the bottom support block 901. Therefore, the distance between the bending plate 905 and the bottom support block 901 on the horizontal moving table 907 can be adjusted as needed for better bending of the sheet metal. A bottom slide rail 909 can be mounted on the positioning support base 700 and connected to the bending support frame 900 via a slider, allowing the bending support frames 900 to move closer to or away from each other. A bottom cylinder 910 can be mounted on the positioning support base 700 and connected to the bending support frame 900, thereby moving the bending support frames 900 closer to or away from each other.

[0024] In one embodiment of the present invention, the U-shaped bending machine 10 may include: a bottom support 1000, a bridge-type bending base 1001, a bending support table 1002, a bending pressure strip 1003, a central shaft cylinder 1004, a downward pressure support frame 1005, a bending module 1006, a downward pressure motor 1007, a downward pressure slide rail 1008, and a horizontal motor 1009. The bottom support 1000 may be disposed on one side of the sheet metal conveying line 8. The bridge-type bending base 1001 may be disposed on the bottom support 1000 and may be disposed on the side closest to the sheet metal conveying line 8. The bending support table 1002 may be disposed at the bottom of the bridge-type bending base 1001 and may be disposed on the central axis of the bridge-type bending base 1001, thereby bearing the sheet metal conveyed by the sheet metal conveying line. The bending die 1003 can be slidably mounted on the top of the bridge-type bending base 1001 and can be positioned on the central axis of the bridge-type bending base 1001. The bending die 1003 can move vertically, thereby pressing down to cooperate with the bending support table 1002 to fix the sheet material conveyed by the sheet material conveying line 8, and can clamp the middle of the sheet material. The central shaft cylinder 1004 can be mounted on the top of the bridge-type bending base 1001 and can be connected to the bending die 1003, thereby driving the bending die 1003 closer to or away from the bending support table 1002. The downward pressing support frame 1005 can be slidably and symmetrically arranged on both sides of the bending die 1003. A slide rail can be provided on the side of the downward pressing support frame 1005 near the central shaft cylinder 1004. The bending module 1006 can be mounted on the slide rail of the pressing support frame 1005 via a slider. This allows it to be pressed vertically up and down when the bending die strip 1003 is fixing the sheet metal, thus bending the sheet metal on both sides of the bending die strip 1003. The bending module 1006 may have a protruding bending block on the side near the bending support table 1002, which, during pressing, cooperates with the bending support table 1002 and the bending die strip 1003 to perform a U-shaped bending operation on the sheet metal. The pressing motor 1007 can be symmetrically arranged on both sides of the central shaft cylinder 1004 and can be connected to the bending module 1006 via a ball screw, thereby driving the bending module 1006 to move vertically. The downward sliding rail 1008 can be symmetrically arranged on the top of the bridge-type bending base 1001, and can be connected to the top of the downward support frame 1005 via a slider. This allows the downward support frames 1005 to move closer or further apart in the horizontal direction, thereby adjusting the distance between the bending modules 1006 as needed for better bending of the sheet metal. There can be two horizontal motors 1009, which can be respectively arranged on both sides of the bridge-type bending base 1001.The horizontal motor 1009 can be connected to the downward support frame 1005 via a ball screw, thereby driving the downward support frame 1005 to move closer or further apart in the horizontal direction.

[0025] In one embodiment of the present invention, the unloading robot 11 may include: an unloading support frame 1100, a first unloading support platform 1101, a first unloading support frame 1102, a first unloading motor 1104, a first unloading slide rail 1105, a first adjusting motor 1106, a first flipping support platform 1107, a first flipping support plate 1108, a second suction cup 1110, a flipping motor 1111, a second adjusting motor 1112, a feeding conveyor belt 1113, and guide wheels 1114. The unloading support frame 1100 may be disposed on the axis of symmetry of the bottom support base 1000 and may be disposed on the side of the bridge-type bending base 1001, thereby supporting the U-shaped sheet metal. The coding machine 12 may be disposed on the side of the unloading support frame 1100, and when the sheet metal is driven past the station of the coding machine 12, the coding machine 12 may code the sheet metal. The first discharge support platform 1101 can be disposed at the bottom of the discharge support frame 1100 and can slide along the length of the discharge support frame 1100 on the bottom support base 1000. The first discharge support frame 1102 can be symmetrically disposed at both ends of the first discharge support platform 1101. Push blocks 1103 can be provided at both ends of the first discharge support frame 1102. When the sheet material is not folded and not marked, the push blocks 1103 can be pushed to the workstation of the folding machine 10 and the marking machine 12. After the sheet material is folded and marked, the folded sheet material is pushed to the workstation of the marking machine 12, and the marked sheet material can be pushed to a designated position. The first discharge motor 1104 can be disposed on the bottom support base 1000 and can be connected to the first discharge support platform 1101 through a ball screw, thereby driving the discharge support platform 1101 to move.

[0026] The first discharge slide rail 1105 can be mounted on the first discharge support platform 1101. The first discharge support frame 1102 can be connected to the first discharge slide rail 1105 via sliders, allowing the first discharge support frames 1102 to move closer or further apart along the first discharge slide rail 1105. The first adjusting motor 1106 can be mounted on the first discharge support platform 1101 and can be connected to the first discharge support frame 1102 via ball screws. The two first discharge support frames 1102 can be connected to the ball screw of the first adjusting motor 1106 via screw nuts, and the two screw nuts rotate in opposite directions. Therefore, when the first adjusting motor 1106 drives the ball screw to rotate, the two first discharge support frames 1102 connected to the ball screw via screw nuts move in opposite directions, allowing adjustment of the distance between the two first discharge support frames 1102 as needed.

[0027] The first flip support plate 1108 can be mounted on the first flip support platform 1107, and the adsorption brackets 1109 can be symmetrically mounted on the first flip support plate 1108. The second suction cup 1110 can be mounted on the opposite side of the two adsorption brackets 1109, thereby adsorbing both sides of the coded sheet material. The flip motor 1111 can be mounted at the end of the first flip support platform 1107 and can be connected to the first flip support plate 1108, thereby driving the first flip support plate 1108 to flip 180 degrees. The adsorbed sheet material can also be driven to flip 180 degrees, so that the opening of the U-shaped sheet material faces upward, facilitating subsequent welding and other procedures. The second adjustment motor 1112 can be mounted on the first flip support plate 1108 and can be connected to the adsorption brackets 1109 via a ball screw. The two adsorption brackets 1109 can be connected to the ball screw of the second adjusting motor 1112 via lead screw nuts. The two lead screw nuts connected to the ball screw of the second adjusting motor 1112 can rotate in opposite directions. Therefore, when the second adjusting motor 1112 rotates, the two adsorption brackets 1109 move in opposite directions, and the distance between them can be adjusted as needed.

[0028] The feeding conveyor belt 1113 can be installed on the side of the first tilting support platform 1107, so as to receive the sheet material after it has been tilted 180 degrees, and then transport the sheet material to the designated position. The guide wheels 1114 can be installed on both sides of the feeding conveyor belt 1113, so as to guide the sheet material when the feeding conveyor belt is transporting the sheet material and prevent it from deviating.

[0029] Through the above technical solution, the battery casing sheet metal bending and forming system provided by the present invention can unwind a coiled sheet metal as needed using an uncoiler to release the sheet metal. A leveling machine can be located on the side of the uncoiler to receive the sheet metal released from the uncoiler and to relieve stress and level the sheet metal. An end trimming machine can be located on the side of the leveling machine to receive the stress-relieved sheet metal and to trim the ends of the sheet metal as needed. A stepping feeder can be located on the side of the end trimming machines to convey the trimmed sheet metal from the end trimming machines. A cutting machine can be located on the side of the stepping feeder to receive the sheet metal conveyed by the stepping feeder and to cut the conveyed sheet metal into smaller pieces. The output flipper can be located on the side of the cutting machine to receive the sheet metal cut by the cutting machine and flip the sheet metal 180 degrees so that the punching burrs of the sheet metal face upwards, preventing the burrs from facing inwards during subsequent bending, which would affect the subsequent filling of battery cells and the safety of the cells. The positioning machine can be located on the side of the output flipper to receive the sheet metal after it has been flipped and to position it. The sheet metal conveyor line can be located on the side of the positioning machine to clamp and convey the positioned sheet metal. The two-end bending machines can be located on the sides of the sheet metal conveyor line that are not in contact with the positioning machines, so that when the sheet metal conveyor line conveys the sheet metal to the two-end bending machines, the two ends of the positioned sheet metal can be bent as needed without affecting the conveying of the sheet metal on the sheet metal conveyor line. The U-shaped bending machine can be located on the side of the sheet metal conveyor line away from the positioning machine, so that it can receive the sheet metal after the two ends have been bent and can bend the sheet metal into a U-shape as needed. The unloading robot can be positioned on the side of the U-shaped bending machine to grip the sheet metal bent into a U-shape and transport it out of the machine's station. A marking machine can be positioned on the side of the unloading robot to mark the sheet metal as it passes the machine's station. This system operates entirely through the coordinated mechanical components at each station during battery casing sheet metal processing, eliminating the need for manual intervention and thus improving efficiency while ensuring processing accuracy.

[0030] It should also be noted that 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. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0031] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A battery casing sheet metal bending and forming system, characterized in that, The system includes: Uncoiler (1) is used to carry the rolled sheet material and rotate it to unwind and release the sheet material as needed; A leveling machine (2) is set on the side of the uncoiler (1) to receive the sheet material released by the uncoiler (1) and to relieve stress and level the sheet material. The two-end trimming machine (3) is set on the side of the leveling machine (2) and receives the plate after the leveling machine (2) has leveled and relieved stress, so as to trim the two ends of the plate as required; A stepper feeder (4) is set on the side of the two end trimmers (3) to convey the trimmed sheet material out of the two end trimmers (3); A cutting machine (5) is set on the side of the stepper (4) to receive the board material conveyed by the stepper (4) and to cut the conveyed board material into small pieces. The discharge turning machine (6) is set on the side of the cutting machine (5) to receive the plate material cut by the cutting machine (5) and turn the plate material 180 degrees so that the punching burrs of the plate material face upward. A positioning machine (7) is set on the side of the discharge flipper (6) to receive the plate material after it has been flipped by the discharge flipper (6) and to position the plate material. A sheet material conveying line (8) is set on the side of the positioning machine (7) to clamp the positioned sheet material and convey the sheet material. The two-end bending machine (9) is set on both sides of the plate conveying line (8) that do not contact the positioning machine (7) so that when the plate conveying line (8) conveys the plate to the position of the two-end bending machine (9), the two ends of the positioned plate are bent as required without affecting the conveying of the plate on the plate conveying line (8). A U-shaped bending machine (10) is set on the side of the sheet material conveying line (8) away from the positioning machine (7) to receive the sheet material after both ends are bent, and to bend the sheet material into a U-shape as required; A discharge robot (11) is set on the side of the U-shaped bending machine (10) to clamp the sheet metal bent into a U-shape and transport the sheet metal out from the station of the U-shaped bending machine (10); A coding machine (12) is set on the side of the unloading robot (11) to code the board material when the unloading robot (11) clamps the board material and passes the station of the coding machine (12); The two-end trimming machine (3) includes: The bottom support plate (301) is provided on the side of the leveling machine (2); A punching die machine (302) is symmetrically arranged at both ends of the bottom support plate (301), and a support bracket (303) is provided between the two punching die machines (302). The punching die machine (302) includes: A punching support frame (3020) is mounted on the bottom bearing plate (301), and a first hydraulic cylinder (3021) is provided on the top of the punching support frame (3020). The first sheet metal support platform (3022) is located in the middle of the punching support frame (3020) to support the sheet metal; A sheet metal cutting table (3023) is set on top of the first sheet metal support table (3022) and connected to the telescopic rod of the first hydraulic cylinder (3021) so that it can be driven by the first hydraulic cylinder (3021) to cut the two ends of the sheet metal on the first sheet metal support table (3022). The first conveyor belt (3024) is set at the bottom of the first sheet support platform (3022) to receive the cut waste and convey it to the designated position; A first slide rail support plate (3025) is provided on the bottom bearing plate (301), and a first slide rail (3026) is provided on the first slide rail support plate (3025). The first slider (3027) is disposed on the first slide rail (3026), and the top of the first slider (3027) is connected to the bottom of the punching support frame (3020) so as to drive the punching support frame (3020) to move on the first slide rail (3026); The second hydraulic cylinder (3028) is mounted on the bottom support plate (301) and connected to the bottom of the punching support frame (3020) to drive the punching support frame (3020) to move on the first slide rail (3026); The first roll support frame (304) is disposed on the bottom bearing plate (301) and between the punching die machine (302) and the leveling machine (2); The first side symmetrical roller (305) is disposed on top of the first roll support frame (304), and the sheet material is conveyed from the leveler (2) and passes between the first side symmetrical roller (305); The first side active roller (306) is disposed on the top of the first roll support frame (304) and on the side of the first side symmetrical roller (305) near the punching die machine (302); The first side driven roller (307) is disposed on top of the first side driving roller (306); The eighth hydraulic cylinder (308) is located at both ends of the first roll support frame (304) and connected to both ends of the first side driven roller (307) to drive the first side driven roller (307) to move closer to or away from the first side driving roller (306). A first rotating motor (309) is located on the side of the first roll support frame (304) and connected to the first side active roller (306) to drive the first side active roller (306) to rotate, thereby transmitting the sheet material.

2. The system according to claim 1, characterized in that, The stepper feeder (4) includes: A stepping support frame (400) is disposed on the bottom bearing plate (301) and on the side of the punching die machine (302) away from the leveling machine (2); A sheet metal support block (401) is disposed in the middle of the stepping support frame (400) to support the sheet metal; A pressure block (402) is disposed on the top of the sheet support block (401) and can be close to the sheet support block (401) to clamp the sheet material by pressing down in cooperation with the sheet support block (401); The third hydraulic cylinder (403) is located on the top of the stepping support frame (400), and the bottom telescopic shaft of the third hydraulic cylinder (403) is connected to the pressing block (402) to drive the pressing block (402) to press down and cooperate with the plate support block (401) to clamp the plate. The second slide rail (404) is provided on the bottom support plate (301) and on the side of the punching die machine (302) away from the leveling machine (2). The second slide rail (404) is provided with a second slider (405). The stepping support frame (400) is provided on the second slider (405) so as to be driven to move closer to or away from the punching die machine (302) along the second slide rail (404). The fourth hydraulic cylinder (406) is mounted on the bottom support plate (301), and the telescopic shaft of the fourth hydraulic cylinder (406) is connected to the stepping support frame (400) to drive the stepping support frame (400) to move closer to or away from the punching die machine (302) along the second slide rail (404). A guide support frame (407) is disposed on the bottom support plate (301) and on the side of the stepping support frame (400) away from the punching die machine (302); Guide blocks (408) are disposed at both ends of the guide support frame (407) to guide the sheet material transported from the stepping support frame (400); The third slide rail (409) is disposed on the guide support frame (407) and is connected to the bottom of the guide block (408) via the third slider, so that the guide blocks (408) can move closer or further apart along the third slide rail (409); The fifth hydraulic cylinder (410) is respectively disposed at both ends of the guide support frame (407) and is respectively connected to the guide blocks (408) at both ends, so as to drive the guide blocks (408) to move closer or further away from each other; Multi-layer spaced support plates (411) pass through the stepping support frame (400) and the guide support frame (407) to support the sheet material.

3. The system according to claim 2, characterized in that, The cutting machine (5) includes: A cutting machine base (500) is provided on the bottom support plate (301) and on the side of the stepper feeder (4) away from the two end trimmers (3). A punching support plate (501) is provided on the cutting machine base (500) to support the conveyed sheet material. A cutting support frame (502) is disposed on the top of the cutting machine base (500), and a sixth hydraulic cylinder (503) is provided on the top of the cutting support frame (502). A cutting plate (504) is disposed above the punching support plate (501) and connected to the sixth oil cylinder (503) so that it can be driven to approach the punching support plate (501) and cooperate with the punching support plate (501) to cut the sheet material transported to the current work station. The fourth slide rail (505) is disposed on the bottom support plate (301), and the cutting machine base (500) is disposed on the fourth slide rail (505) by the fourth slider, so as to move closer to or further away from the stepper feeder (4) along the fourth slide rail (505). The seventh hydraulic cylinder (506) is mounted on the bottom support plate (301) and connected to the cutting machine base (500) to drive the cutting machine base (500) to move closer to or away from the stepper feeder (4). The second conveyor belt (507) is located at the bottom of the cutting machine base (500) to carry the waste material of the cut sheet and transport it to the designated location.

4. The system according to claim 1, characterized in that, The discharge tilting machine (6) includes: A flip support (600) is provided on the side of the cutter (5) away from the stepper (4); A flip support frame (601) is provided in the middle of the flip support base (600), and a second rotating motor (602) is provided on the top of the flip support frame (601). The rotating shaft of the second rotating motor (602) is rotatably connected to both ends of the top of the flip support frame (601). The flipping fork (603) is symmetrically arranged on both sides of the flipping support frame (601) and connected to the rotating shaft of the second rotating motor (602) so that the plate is driven to flip 180 degrees after clamping it. A flipping conveyor (604) is symmetrically arranged on both sides of the flipping support frame (601); A flipping conveyor motor (605) is mounted on the flipping support base (600) and symmetrically arranged on both sides of the flipping support frame (601). The drive shaft of the flipping conveyor motor (605) passes through the bottom of the flipping conveyor frame (604). Multiple sets of conveyor belts (606) are arranged on the flip conveyor frame (604), and all of them can bypass the drive shaft of the flip conveyor motor (605) so as to be driven by the flip conveyor motor (605) to convey the sheet material to the flip fork (603) or from the flip fork (603) to the outside. A transmission clamping component (607) is disposed on the side of the flipping support frame (601) near the cutting machine (5) and in the middle of the multiple sets of conveyor belts (606) to clamp and convey the sheet metal cut by the cutting machine (5) onto the conveyor belts (606). The transmission clamping component (607) includes: A conveyor rail (6070) is provided on one side of the flip support frame (601) and in the middle of the multiple sets of conveyor belts (606). A conveyor bracket (6071) is provided on the conveyor rail (6070) and the conveyor bracket (6071) can move along the conveyor rail (6070). A conveyor slide rail (6072) is disposed on the conveyor bracket (6071), and a clamping bracket (6073) is disposed on the conveyor slide rail (6072) via a conveyor slider, so as to move along the conveyor slide rail (6072) in the vertical direction; The grippers (6074) are disposed at both ends of the clamping bracket (6073) to clamp the sheet material cut by the cutting machine (5) when it is driven close to the cutting machine (5); A first suction cup (6075) is disposed in the middle of the clamping bracket (6073) to adsorb the sheet material while the gripper (6074) clamps the sheet material; A conveying cylinder (6076) is mounted on the conveying bracket (6071) and connected to the clamping bracket (6073) to drive the clamping bracket (6073) to move in the vertical direction; A drive motor (6077) is mounted on the flip support (600), and the drive motor (6077) is connected to the conveying bracket (6071) via a ball screw to drive the conveying bracket (6071) to move closer to or away from the cutting machine (5).

5. The system according to claim 4, characterized in that, The positioning machine (7) includes: A positioning support (700) is disposed on the side of the flipping support (600) away from the discharge flipping machine (6); The second plate support platform (701) is transversely arranged on the positioning support base (700) and is located on the axis of symmetry of the positioning support base (700) to support the plate. A positioning clamping support frame (702) is provided on the side of the positioning support base (700) near the discharge turning machine (6) and on both sides of the second plate support platform (701). Upper and lower positioning blocks (703) are provided on the positioning clamping support frame (702) and can move closer or further away from each other along the positioning clamping support frame (702). The first positioning motor (704) is symmetrically arranged on the positioning clamping support frame (702) and is connected to the corresponding upper and lower positioning blocks (703) respectively through ball screws, so as to drive the upper and lower positioning blocks (703) to move closer or further away from each other; The first transverse positioning bracket (705) is mounted on the side of the positioning support (700) near the discharge tilting machine (6) via a slide rail, so as to be close to or away from the discharge tilting machine (6). The first transverse positioning motor (706) is connected to the first transverse positioning bracket (705) via a ball screw, so as to drive the first transverse positioning bracket (705) to move closer to or further away from the discharge tilting machine (6). The first vertical positioning frame (707) is slidably mounted on the first horizontal positioning bracket (705) so as to move in the vertical direction; The first vertical positioning cylinder (708) is mounted on the first horizontal positioning bracket (705) and connected to the first vertical positioning frame (707) to drive the first vertical positioning frame (707) to move in the vertical direction; The first horizontal positioning block (709) is set on the first vertical positioning frame (707) so that it is driven to move downward when it is close to the discharge turning machine (6) and moves upward in the gap of the conveyor belt (606) to exceed the height of the plate on the conveyor belt (606), so that when it is driven away from the discharge turning machine (6), it can drive the plate back to the second plate support platform (701); The second transverse positioning bracket (710) is slidably disposed on both sides of the second sheet metal support platform (701); The second lateral positioning motor (711) is mounted on the positioning support (700) and connected to the second lateral positioning bracket (710) via a ball screw, so as to drive the second lateral positioning bracket (710) to move closer to or further away from the first lateral positioning bracket (705). The second vertical support (712) is slidably mounted on the second horizontal positioning support (710) so as to move in the vertical direction; The second vertical positioning cylinder (713) is mounted on the second horizontal positioning bracket (710) and connected to the second vertical bracket (712) to drive the second vertical bracket (712) to move in the vertical direction; The second transverse positioning block (714) is symmetrically arranged on the second vertical support (712) so that it is driven to move upward and closer to the first transverse positioning support (705) during positioning, and is driven to move downward when positioning is completed, so as to avoid affecting the movement of the sheet material.

6. The system according to claim 5, characterized in that, The sheet material conveying line (8) includes: A top clamping support frame (800) is disposed on the positioning support base (700) and on the top of the second sheet support platform (701); A top clamping support plate (801) is slidably disposed at the bottom of the top clamping support frame (800), and a pressing cylinder (802) is evenly arranged at the bottom of the top clamping support plate (801), and a first pressing block (803) is provided at the bottom of the pressing cylinder (802). A bottom clamping support frame (804) is disposed on the positioning support base (700) and at the bottom of the second sheet support platform (701); A bottom clamping support plate (805) is slidably disposed on the top of the bottom clamping support frame (804), and upper pressure cylinders (806) are evenly arranged on the top of the bottom clamping support plate (805). The top of the upper pressure cylinder (806) is provided with a second pressure block (807) to cooperate with the first pressure block (803) of the lower pressure cylinder (802) to clamp the plate after the plate is positioned and move along the second plate support platform (701).

7. The system according to claim 6, characterized in that, The two-end bending machine (9) includes: A bending support frame (900) is symmetrically arranged on both sides of the second sheet metal support platform (701); A bottom support block (901) is disposed on the side of the bending support frame (900) near the second sheet support platform (701) to support the sheet; The top support block (902) is slidably disposed on the bending support frame (900) and disposed on the top of the bottom support block (901) so that when the sheet material is driven to the work position of the two end bending machines (9), it cooperates with the bottom support block (901) to clamp the sheet material, and alternately clamps the sheet material with the sheet material conveying line (8). A top cylinder (903) is located at the top of the bending support frame (900) and connected to the top support block (902) to drive the top support block (902) to move closer to or away from the bottom support block (901). A bending bracket (904) is slidably disposed on the side of the bending support frame (900) away from the second sheet support platform (701), and a bending plate (905) is provided on the top of the bending bracket (904) to press down and bend the end of the sheet when the sheet is clamped by the top support block (902) and the bottom support block (901); A bending motor (906) is disposed at the bottom of the bending support frame (900) and connected to the bending bracket (904) via a ball screw to drive the bending bracket (904) to move in the vertical direction; A horizontal moving platform (907) is slidably disposed on the top of the bending bracket (904), and the bending plate (905) is disposed on the horizontal moving platform (907) so as to be driven to adjust the distance between itself and the bottom support block (901); A horizontal cylinder (908) is disposed on the top of the bending bracket (904) and connected to the horizontal moving platform (907) to drive the horizontal moving platform (907) to move closer to or away from the bottom support block (901). The bottom slide rail (909) is provided on the positioning support (700) and is connected to the bending support frame (900) by a slider, so that the bending support frames (900) can move closer or further apart from each other; A bottom cylinder (910) is mounted on the positioning support (700) and connected to the bending support frame (900) to drive the bending support frame (900) to move closer or further apart.

8. The system according to claim 1, characterized in that, The U-shaped folding machine (10) includes: A bottom support (1000) is provided on one side of the plate conveying line (8); A bridge-type bending base (1001) is provided on the bottom support (1000) and is located on the side close to the plate conveying line (8); A bending support platform (1002) is set at the bottom of the bridge-type bending base (1001) and on the central axis of the bridge-type bending base (1001) to support the sheet material conveyed by the sheet material conveying line (8). A bending die strip (1003) is slidably disposed on the top of the bridge-type bending base (1001) and disposed on the central axis of the bridge-type bending base (1001), and is used to fix the sheet material conveyed from the sheet material conveying line (8) by pressing against the bending support table (1002); A central shaft cylinder (1004) is disposed on the top of the bridge-type bending base (1001) and connected to the bending die strip (1003) to drive the bending die strip (1003) to move closer to or away from the bending support platform (1002). The lower support frame (1005) is slidably and symmetrically arranged on both sides of the bending die strip (1003), and a slide rail is provided on the side of the lower support frame (1005) near the central shaft cylinder (1004); The bending module (1006) is mounted on the slide rail of the pressing support frame (1005) by a slider, so that when the bending die strip (1003) fixes the sheet material, it is pressed down to bend the sheet material on both sides of the bending die strip (1003); The downward pressure motor (1007) is symmetrically arranged on both sides of the central shaft cylinder (1004) and connected to the bending module (1006) through a ball screw to drive the bending module (1006) to move in the vertical direction. The downward sliding rail (1008) is symmetrically arranged on the top of the bridge-type bending base (1001) and is connected to the top of the downward support frame (1005) through a slider, so that the downward support frames (1005) can move closer or further apart in the horizontal direction. A horizontal motor (1009) is respectively installed on both sides of the bridge-type bending base (1001) and connected to the lower pressure support frame (1005) through a ball screw, so as to drive the lower pressure support frame (1005) to move closer or further apart in the horizontal direction.

9. The system according to claim 8, characterized in that, The unloading robot (11) includes: The discharge support frame (1100) is set on the axis of symmetry of the bottom support base (1000) and on the side of the bridge bending base (1001) to support the U-shaped sheet material. The marking machine (12) is set on the side of the discharge support frame (1100) to mark the sheet material when it passes the station of the marking machine (12). The first discharge support platform (1101) is disposed at the bottom of the discharge support frame (1100) and can slide on the bottom support base (1000); The first discharge support frame (1102) is symmetrically arranged at both ends of the first discharge support platform (1101), and push blocks (1103) are provided at both ends of the first discharge support frame (1102) so that when the board material is not folded into a U and not marked, it can reach the work stations of the folding machine (10) and the marking machine (12) respectively, and push the folded board material to the work station of the marking machine (12) after the board material is folded into a U and marked, and push the marked board material to the designated position. The first discharge motor (1104) is mounted on the bottom support base (1000) and connected to the first discharge support platform (1101) via a ball screw, so as to drive the first discharge support platform (1101) to move. The first discharge slide rail (1105) is set on the first discharge support platform (1101), and the first discharge support frame (1102) is connected to the first discharge slide rail (1105) through sliders respectively; The first adjusting motor (1106) is set on the first discharge support platform (1101) and is connected to the first discharge support frame (1102) respectively through ball screws. The two first discharge support frames (1102) are connected to the ball screw of the first adjusting motor (1106) through screw nuts. The two screw nuts rotate in opposite directions. The first flipping support platform (1107) is slidably disposed on the bottom support base (1000) and disposed on the side of the discharge support frame (1100), and can be close to or away from the discharge support frame (1100). The first flip support plate (1108) is disposed on the first flip support platform (1107), and the adsorption bracket (1109) is symmetrically disposed on the first flip support plate (1108); The second suction cup (1110) is set on the opposite side of the two suction brackets (1109) to suction the two sides of the coded sheet material; A flip motor (1111) is located at the end of the first flip support platform (1107) and connected to the first flip support plate (1108) to drive the first flip support plate (1108) to flip 180 degrees. The second adjusting motor (1112) is mounted on the first flip support plate (1108) and is connected to the adsorption brackets (1109) respectively via ball screws. The two adsorption brackets (1109) are connected to the ball screws of the second adjusting motor (1112) via screw nuts. The two screw nuts connected to the ball screws of the second adjusting motor (1112) rotate in opposite directions. The unloading conveyor belt (1113) is set on the side of the first flipping support platform (1107) to receive the sheet material after it has been flipped 180 degrees and to convey the sheet material to the designated position. Guide wheels (1114) are provided on both sides of the unloading conveyor belt (1113) to guide the sheet material during transmission and prevent it from deviating.

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