A bending machine capable of meeting different bending requirements and its usage method

Abstract

The present invention discloses a bending machine capable of meeting different bending requirements and a using method, which relates to the technical field of bending machines. The bending machine equipment includes a bending die fixedly connected to the bottom end inside the bending machine equipment, a bending knife disposed at the top end inside the bending machine equipment, and a hydraulic telescopic cylinder fixedly connected to the top end inside the bending machine equipment. The output end of the hydraulic telescopic cylinder is fixedly connected to the bending knife. Adjust the spraying range of the nozzles on the outer side of the lubricating pipe according to the size of the workpiece to lubricate the bending part of the workpiece. Finally, start the hydraulic telescopic cylinder, and the hydraulic telescopic cylinder pushes the bending knife to descend, thereby performing a bending process on the workpiece. Thus, it is ensured that during the bending process of the plate, friction resistance can be reduced through lubrication, making the bending process smoother, and it can be applicable to the bending of plates of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of bending machines, and particularly to a bending machine and a usage method that can meet different bending requirements. Background Art

[0002] During the processing of sheet metal parts, an automatic bending machine is used to perform the bending process on the sheet metal parts, so that the processed sheet metal parts can meet the requirements of different customers and different industries. Usually, the sheet metal parts are placed on the operating table, and the sheet metal parts on the table are directly pressed by a pressing plate before the sheet metal parts can be bent.

[0003] Referring to a large steel plate bending machine with shock absorption and automatic lubrication disclosed in the patent application with the publication number of CN116967318B, which includes a machine body, working columns, an oil cylinder, a pressing plate, a workbench, a top module, an oil storage pipe, a groove for engraving, a lower oil pipe, and a spring. The bottom of the machine body is connected to the working columns and the pressing plate. The upper surface of the working columns is provided with the workbench. One side of the surface of the workbench is provided with two of the top modules, which are symmetrically arranged. The bottom of the pressing plate is provided with the groove for engraving. One side of the machine body is provided with the oil cylinder, and the lower surface is provided with the oil storage pipe. The bottom of the oil storage pipe is connected to a plurality of the lower oil pipes. A plurality of the springs are arranged inside the workbench. This bending machine can buffer the impact force generated when the machine processes and bends the steel plate through the springs, thereby protecting the workbench. Through the oil inlet, the oil storage pipe, and the lower oil pipes, automatic lubrication of the pressing plate and the groove for engraving can be achieved, thereby ensuring the smooth operation of the bending machine.

[0004] In the actual production process, in order to ensure that during the bending process of products made of materials such as metals, when using a bending machine and a mold for processing, the use of lubricating oil is crucial. Lubricating oil is often sprayed on the bending tool or the sheet. Due to the different sizes of the sheets, the lubricating oil often cannot automatically adjust the spraying range of the lubricating oil according to the size of the sheet during the spraying process, and manual adjustment or direct large-scale spraying is required each time, resulting in a large amount of unnecessary waste of lubricating oil.

[0005] Therefore, it is necessary to provide a bending machine and a usage method that can meet different bending requirements to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a bending machine and a usage method that can meet different bending requirements to solve the problem of the defects of the prior art mentioned in the above background art.

[0007] Based on the above ideas, the present invention provides the following technical solution: A bending machine capable of adapting to different bending requirements, including a bending machine device. At the bottom end inside the bending machine device, there is a bending die fixedly connected. At the top end inside the bending machine device, there is a bending knife. At the top end inside the bending machine device, there is a hydraulic telescopic cylinder fixedly connected, and the output end of the hydraulic telescopic cylinder is fixedly connected to the bending knife. It further includes:

[0008] A support pallet. On both sides of the support pallet, there are rotating arms fixedly connected. The two rotating arms are respectively rotationally connected to the bending machine device. On the top of the support pallet, there are two auxiliary clamping plates. On the top of the support pallet, there is a driving member for driving the two auxiliary clamping plates to clamp both sides of the workpiece;

[0009] A connecting cylinder. At both ends of the connecting cylinder, there are lubricating pipes fixedly connected. On the outer sides of the two lubricating pipes, there are multiple spray nozzles for lubricating and spraying the workpiece. Inside the two lubricating pipes, there are sealing members slidably connected. Between the sealing members and the auxiliary clamping plates, there are connecting members. The auxiliary clamping plates drive the sealing members to slide inside the lubricating pipes through the connecting members, so as to adjust the spraying range of the lubricating pipes according to workpieces of different sizes.

[0010] As a further scheme of the present invention: At the top of the bending machine device, there is a storage cylinder fixedly connected. Inside the storage cylinder, there is a delivery pump. The output end of the delivery pump is fixedly connected to an infusion pipe, and the infusion pipe is fixedly connected to the connecting cylinder.

[0011] As a further scheme of the present invention: The sealing member includes a rotating ring that fits the inner wall of the lubricating pipe. Inside the rotating ring, there is a magnetic attraction ring rotatably connected. Inside the magnetic attraction ring, there is a sealing plate fixedly connected. Inside the lubricating pipe, there are multiple baffle plates. The multiple baffle plates are arranged outside the rotating ring and are slidably connected to the rotating ring. At one end of the multiple baffle plates close to the connecting cylinder, there are fan impellers fixedly connected. The fan impellers are rotatably connected to the inner wall of the lubricating pipe. When the lubricating liquid enters the lubricating pipe and passes through the fan impellers, it drives the fan impellers to rotate.

[0012] As a further scheme of the present invention: The connecting member includes a sliding frame fixedly connected to the outside of the bending machine device. On the outside of the sliding frame, there are two sliding seats slidably connected. On the top of the two sliding seats, there are open annular plates fixedly connected. The open annular plates are sleeved outside the lubricating pipes. On the inner wall of the open annular plates, there are magnet rings fixedly connected, and the magnet rings are magnetically attracted to the magnetic attraction rings.

[0013] As a further scheme of the present invention: The connecting member further includes an arc-shaped plate fixedly connected to the bottom of the auxiliary clamping plate. On the outside of the arc-shaped plate, there is a contact plate fixedly connected. On one side of the sliding seat close to the auxiliary clamping plate, there is a chute opened. The contact plate extends into the chute outside the sliding seat and is slidably connected to the sliding seat.

[0014] As a further solution of the present invention: Rotating shafts are rotatably connected to both sides of the bending machine device. A transmission gear and a winding disc are fixedly connected to the outer side of the rotating shaft. Rack bars are fixedly connected to both sides of the bending knife. The rack bars are meshed and connected with the transmission gear. A connecting cylinder is sleeved on the outer side of the rotating shaft. The connecting cylinder is fixedly connected to the bending machine device. A torsion spring is fixedly connected between the connecting cylinder and the rotating shaft. A traction rope is fixedly connected to the outer side of the winding disc. The other end of the traction rope is fixedly connected to the supporting tray. A guiding wheel is fixedly connected to the inner top of the bending machine device. The traction rope passes through the guiding wheel.

[0015] As a further solution of the present invention: A fixed cylinder is fixedly connected to the top of the auxiliary clamping plate. An electromagnet is slidably connected inside the fixed cylinder. A pressing rod is fixedly connected to the bottom of the electromagnet. The pressing rod penetrates through the fixed cylinder and is slidably connected with the fixed cylinder. A return spring is fixedly connected between the electromagnet and the fixed cylinder. A supplementary cylinder is fixedly connected to the top of the auxiliary clamping plate. A communicating pipe is fixedly connected and communicated between the supplementary cylinder and the fixed cylinder. A magnetorheological fluid is filled between the fixed cylinder and the electromagnet. After the electromagnet is energized, it generates magnetism to solidify the magnetorheological fluid.

[0016] As a further solution of the present invention: A driving wheel is rotatably connected to the two auxiliary clamping plates. A rotating rod is arranged inside the supporting tray. The rotating rod sequentially penetrates through the driving wheel and is movably connected with the driving wheel. A limiting groove is opened on the outer side of the rotating rod. A convex block is fixedly connected inside the driving wheel. The convex block extends into the limiting groove opened on the outer side of the rotating rod and is slidably connected with the rotating rod. A first motor is fixedly connected to the outer side of the supporting tray. The output shaft of the first motor is fixedly connected to the rotating rod.

[0017] As a further solution of the present invention: The driving member includes a bidirectional lead screw that penetrates through the supporting tray and is rotatably connected to the supporting tray. The bidirectional lead screw penetrates through the two auxiliary clamping plates and is connected to the auxiliary clamping plates through a ball screw pair. A limiting rod is fixedly connected inside the supporting tray. The limiting rod penetrates through the auxiliary clamping plate and is slidably connected with the auxiliary clamping plate. A second motor is fixedly connected to the outer side of the supporting tray. The output shaft of the second motor is fixedly connected to the bidirectional lead screw.

[0018] A method for using a bending machine is also provided, including the following steps:

[0019] Step 1: First, place the workpiece at the bending mold at the position to be bent. Start the driving member to drive the two auxiliary clamping plates to clamp and support both sides of the workpiece.

[0020] Step 2: When the auxiliary clamping plate moves, drive the sealing member to move inside the lubricating pipe through the connecting member, and adjust the spraying range of the spray head on the outer side of the lubricating pipe according to the size of the workpiece to lubricate the bending position of the workpiece.

[0021] Step 3. Finally, start the hydraulic telescopic cylinder. The hydraulic telescopic cylinder pushes the folding cutter downwards to bend the workpiece.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. When the auxiliary clamping plate moves, it drives the sealing member to move inside the lubricating pipe through the connecting member, adjusts the spraying range of the nozzles on the outer side of the lubricating pipe according to the size of the workpiece, lubricates the bending part of the workpiece, and finally starts the hydraulic telescopic cylinder. The hydraulic telescopic cylinder pushes the folding cutter downwards to bend the workpiece, so as to ensure that during the bending process of the sheet metal, the friction resistance can be reduced through lubrication, making the bending process smoother, and it can be applied when bending sheets of different sizes.

[0024] 2. When the fan impeller rotates, it drives a plurality of baffle plates fixedly connected to the outside to rotate. The baffle plates are arranged outside the rotating ring, and then drives the rotating ring to rotate. At this time, the plurality of baffle plates rotate, intermittently blocking the connection between the lubricating pipe and the nozzles, so that the nozzles spray intermittently, achieving the saving of the use of lubricating fluid during the spraying process.

[0025] 3. The rotation of the rotating shaft drives the fixedly connected winding disc to rotate. The winding disc winds the traction rope, so as to pull the supporting tray to deflect along with the bending of the workpiece through the traction rope, support the workpiece, avoid manual assistance, and lift the workpiece through the supporting tray, making the bending more stable.

[0026] 4. The pressing rod can move according to workpieces of different thicknesses. When it is necessary to clamp the workpiece, the electromagnet is energized. At this time, magnetism is generated, and the magnetorheological fluid inside the fixed cylinder solidifies, so that the pressing rod stably clamps the workpiece, clamps the workpiece according to different sizes, and cooperates with the rotation of the supporting tray to ensure the stability of the workpiece during bending and avoid errors in bending caused by the shaking of the workpiece. Description of the Drawings

[0027] The present invention will be further described below with reference to the drawings and embodiments.

[0028] Figure 1 is the overall structural schematic diagram of the present invention;

[0029] Figure 2 is the structural schematic diagram of the communicating cylinder of the present invention;

[0030] Figure 3 is the structural schematic diagram of the folding cutter of the present invention;

[0031] Figure 4 is the present invention Figure 3 is the enlarged structural schematic diagram of part A;

[0032] Figure 5It is a schematic structural diagram of the support pallet of the present invention;

[0033] Figure 6 It is the present invention Figure 5 Schematic enlarged structural diagram of part B;

[0034] Figure 7 It is a schematic cross-sectional structural diagram of the fixed cylinder of the present invention;

[0035] Figure 8 It is a schematic structural diagram of the connecting piece of the present invention;

[0036] Figure 9 It is a schematic cross-sectional structural diagram of the lubricating pipe of the present invention;

[0037] Figure 10 It is a schematic structural diagram of the fan impeller of the present invention;

[0038] Figure 11 It is the present invention Figure 10 Schematic enlarged structural diagram of part C.

[0039] In the figure: 1. Bending machine equipment; 2. Bending tool; 201. Hydraulic telescopic cylinder; 3. Bending die; 4. Support pallet; 401. Rotating arm; 402. Auxiliary clamping plate; 4021. Fixed cylinder; 4023. Pressing rod; 4024. Electromagnet; 4025. Return spring; 4026. Supplementary cylinder; 403. Bidirectional lead screw; 404. Limiting rod; 405. Driving wheel; 406. Rotating rod; 501. Rotating shaft; 502. Transmission gear; 503. Winding disc; 504. Traction rope; 505. Connecting cylinder; 506. Torsion spring; 507. Rack; 6. Connecting cylinder; 601. Lubricating pipe; 6011. Rotating ring; 6012. Magnetic attraction ring; 6013. Sealing plate; 6014. Baffle plate; 6015. Fan impeller; 602. Sprayer; 603. Storage cylinder; 604. Infusion pipe; 7. Sliding frame; 701. Sliding seat; 702. Open annular plate; 703. Arc plate; 704. Contact plate. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figures 1 to 11 shown, a bending machine capable of meeting different bending requirements includes the following embodiments:

[0042] Embodiment 1: It includes a bending machine device 1. At the bottom end inside the bending machine device 1, a bending die 3 is fixedly connected. At the top end inside the bending machine device 1, a bending knife 2 is arranged. At the top end inside the bending machine device 1, a hydraulic telescopic cylinder 201 is fixedly connected. The output end of the hydraulic telescopic cylinder 201 is fixedly connected to the bending knife 2. It further includes:

[0043] A support pallet 4. Rotating arms 401 are fixedly connected to both sides of the support pallet 4. The two rotating arms 401 are respectively rotationally connected to the bending machine device 1. Two auxiliary clamping plates 402 are arranged on the top of the support pallet 4. A driving member is arranged on the top of the support pallet 4 for driving the two auxiliary clamping plates 402 to clamp both sides of the workpiece.

[0044] A communication cylinder 6. Lubrication pipes 601 are fixedly connected to both ends of the communication cylinder 6. A plurality of spray nozzles 602 for lubricating and spraying the workpiece are fixedly connected to the outer sides of the two lubrication pipes 601. The spray nozzles 602 are pre-positioned at the bending positions in advance. Sealing members are slidably connected inside the two lubrication pipes 601. A connecting member is arranged between the sealing members and the auxiliary clamping plates 402. The auxiliary clamping plates 402 drive the sealing members to slide inside the lubrication pipes 601 through the connecting members, so as to adjust the spraying range of the lubrication pipes 601 according to workpieces of different sizes.

[0045] The driving member includes a bidirectional lead screw 403 that penetrates through the support pallet 4 and is rotationally connected to the support pallet 4. The bidirectional lead screw 403 penetrates through the two auxiliary clamping plates 402 and is connected to the auxiliary clamping plates 402 through a ball screw pair. A limiting rod 404 is fixedly connected inside the support pallet 4. The limiting rod 404 penetrates through the auxiliary clamping plates 402 and is slidably connected to the auxiliary clamping plates 402. A second motor is fixedly connected to the outside of the support pallet 4. The output shaft of the second motor is fixedly connected to the bidirectional lead screw 403.

[0046] In specific implementation, during the actual production process, in order to ensure that when processing products made of materials such as metal by using a bending machine and a die, the use of lubricating oil is crucial. The lubricating oil can reduce the friction coefficient and friction force on the contact arc surface of the deformation zone, thereby reducing the total rolling pressure and energy consumption, increasing the rolling speed, reducing the wear of the rolls, and preventing the metal from sticking to the rolls. However, the existing lubricating fluid generally sprays oil on the bending knife 2 and then squeezes it onto the bending through the bending knife 2. Due to the different sizes of the workpieces, only part of the lubricating oil comes into contact with the workpieces, so a large amount of lubricating oil drips onto the bending machine equipment 1, resulting in a large amount of waste and being unable to be automatically adjusted according to different sizes. Therefore, in this solution, first, the workpiece is placed on the bending die 3 at the place where it needs to be bent, and the driving member is started to drive the two auxiliary clamping plates 402 to clamp and support both sides of the workpiece; when the auxiliary clamping plate 402 moves, the connecting member drives the sealing member to move inside the lubricating pipe 601, adjusts the spraying range of the nozzle 602 on the outer side of the lubricating pipe 601 according to the size of the workpiece, lubricates the bending part of the workpiece, and finally, the hydraulic telescopic cylinder 201 is started, and the hydraulic telescopic cylinder 201 pushes the bending knife 2 to descend, so as to perform the bending process on the workpiece, thereby ensuring that during the bending process of the sheet metal, the friction resistance can be reduced through lubrication, making the bending process smoother, and it can be used when bending sheets of different sizes.

[0047] As Figure 2 shown, in this embodiment, a storage cylinder 603 is fixedly connected to the top of the bending machine equipment 1, a delivery pump is arranged inside the storage cylinder 603, the output end of the delivery pump is fixedly communicated with an infusion pipe 604, and the infusion pipe 604 is fixedly communicated with the communication cylinder 6.

[0048] In specific implementation, by starting the storage cylinder 603 and the delivery pump inside the storage cylinder 603, the lubricating fluid inside the storage cylinder 603 is transported to the communication cylinder 6 through the infusion pipe 604, and then the nozzle 602 arranged on the lubricating pipe 601 sprays and lubricates the bending part of the workpiece.

[0049] As Figures 9 to 11 shown, Embodiment 2: The sealing member includes a rotating ring 6011 that fits the inner wall of the lubricating pipe 601. A magnetic attraction ring 6012 is rotatably connected inside the rotating ring 6011, a sealing plate 6013 is fixedly connected inside the magnetic attraction ring 6012, a plurality of baffles 6014 are arranged inside the lubricating pipe 601, the plurality of baffles 6014 are arranged outside the rotating ring 6011 and are slidably connected to the rotating ring 6011, a fan impeller 6015 is fixedly connected to one end of the plurality of baffles 6014 close to the communication cylinder 6, the fan impeller 6015 is rotatably connected to the inner wall of the lubricating pipe 601, and when the lubricating fluid enters the lubricating pipe 601 and passes through the fan impeller 6015, it drives the fan impeller 6015 to rotate.

[0050] In specific implementation, when the lubricating fluid enters the lubricating pipe 601 through the connecting cylinder 6, it first contacts the fan impeller 6015 inside the lubricating pipe 601. The flow of the liquid drives the fan impeller 6015 to rotate. When the fan impeller 6015 rotates, it drives a plurality of baffles 6014 fixedly connected to the outside to rotate. The baffles 6014 are arranged outside the rotating ring 6011, thereby driving the rotating ring 6011 to rotate. At this time, the plurality of baffles 6014 rotate, intermittently blocking the connection between the lubricating pipe 601 and the nozzle 602, so that the nozzle 602 sprays intermittently, achieving the saving of the use of the lubricating fluid during the spraying process.

[0051] As Figure 5 , Figure 8 and Figure 11 shown, in this embodiment: The connecting member includes a sliding frame 7 fixedly connected to the outside of the bending machine device 1. Two sliding seats 701 are slidably connected to the outside of the sliding frame 7. Open annular plates 702 are fixedly connected to the tops of the two sliding seats 701. The open annular plates 702 are sleeved outside the lubricating pipe 601. A magnet ring is fixedly connected to the inner wall of the open annular plate 702, and the magnet ring is magnetically adsorbed to the magnetic attraction ring 6012.

[0052] The connecting member further includes an arc-shaped plate 703 fixedly connected to the bottom of the auxiliary clamping plate 402. A contact plate 704 is fixedly connected to the outside of the arc-shaped plate 703. A chute is opened on one side of the sliding seat 701 close to the auxiliary clamping plate 402. The contact plate 704 extends into the chute outside the sliding seat 701 and is slidably connected to the sliding seat 701.

[0053] In specific implementation, when the two auxiliary clamping plates 402 drive the two auxiliary clamping plates 402 to approach each other through the driving member and clamp and contact both sides of the workpiece, at this time, the arc-shaped plate 703 fixedly connected to the bottom of the auxiliary clamping plate 402 drives the sliding seat 701 to slide outside the sliding frame 7. Due to the open annular plate 702 fixedly connected to the top of the sliding seat 701, the magnet ring inside the open annular plate 702 is magnetically adsorbed to the magnetic attraction ring 6012. When the open annular plate 702 moves, it drives the magnetic attraction ring 6012 to slide inside the lubricating pipe 601 through magnetic adsorption. The inside of the lubricating pipe 601 is blocked by the rotating ring 6011, the magnetic attraction ring 6012 and the sealing plate 6013, so that the spraying lubrication range can be automatically adjusted according to workpieces of different sizes, avoiding waste and improving the utilization rate of the lubricating fluid.

[0054] As Figures 3 to 5As shown in the figure, Embodiment 3: Rotating shafts 501 are rotatably connected to both sides of the bending machine device 1. A transmission gear 502 and a winding disc 503 are fixedly connected to the outer side of the rotating shaft 501. Rack bars 507 are fixedly connected to both sides of the bending knife 2. The rack bars 507 are meshed with the transmission gear 502. A connecting cylinder 505 is sleeved on the outer side of the rotating shaft 501. The connecting cylinder 505 is fixedly connected to the bending machine device 1. A torsion spring 506 is fixedly connected between the connecting cylinder 505 and the rotating shaft 501. A traction rope 504 is fixedly connected to the outer side of the winding disc 503. The other end of the traction rope 504 is fixedly connected to the support pallet 4. A guide wheel is fixedly connected to the inner top end of the bending machine device 1. The traction rope 504 passes through the guide wheel.

[0055] During specific implementation, when the hydraulic telescopic cylinder 201 pushes the bending knife 2 to descend, the rack bars 507 fixedly connected to both sides of the bending knife 2 are meshed with the transmission gear 502 when the bending knife 2 presses down and bends. The transmission gear 502 drives the fixedly connected rotating shaft 501 to rotate. The rotation of the rotating shaft 501 drives the fixedly connected winding disc 503 to rotate. The winding disc 503 winds the traction rope 504, so as to pull the support pallet 4 to deflect along with the bending of the workpiece through the traction rope 504, support the workpiece, avoid manual assistance, lift the workpiece through the support pallet 4, make the bending more stable, and be applicable to different required bending angles. When the support pallet 4 is in a horizontal state, the support pallet 4 is supported by the traction rope 504 and the arc-shaped plate 703. When bending the workpiece, the rear end of the plate is often held manually to make the rear end of the workpiece tilt up. In this solution, the workpiece is supported by the support pallet 4, avoiding manual hand support and ensuring the safety of the operator.

[0056] As Figure 7 shown in the figure, in this embodiment, a fixed cylinder 4021 is fixedly connected to the top of the auxiliary clamping plate 402. An electromagnet 4024 is slidably connected inside the fixed cylinder 4021. A pressing rod 4023 is fixedly connected to the bottom of the electromagnet 4024. The pressing rod 4023 penetrates through the fixed cylinder 4021 and is slidably connected to the fixed cylinder 4021. A return spring 4025 is fixedly connected between the electromagnet 4024 and the fixed cylinder 4021. A supplementary cylinder 4026 is fixedly connected to the top of the auxiliary clamping plate 402. A communicating pipe is fixedly connected and communicated between the supplementary cylinder 4026 and the fixed cylinder 4021. A magnetorheological fluid is filled between the fixed cylinder 4021 and the electromagnet 4024. After the electromagnet 4024 is energized, it generates magnetism to solidify the magnetorheological fluid.

[0057] During specific implementation, when the two auxiliary clamping plates 402 clamp both sides of the workpiece respectively, the lower pressing rod 4023 inside the auxiliary clamping plate 402 contacts the top of the workpiece. Since an electromagnet 4024 is fixedly connected to the top of the lower pressing rod 4023, and the electromagnet 4024 is arranged inside the fixed cylinder 4021, and the fixed cylinder 4021 is filled with magnetic fluid, which is formed by mixing magnetic solid particles, base carrier liquid and surfactant to form a stable colloidal liquid. In the absence of an external magnetic field, the magnetic fluid has no magnetic attraction; but when an external magnetic field acts, it will exhibit magnetism and change its shape with the change of the magnetic field. Therefore, the lower pressing rod 4023 can move according to workpieces of different thicknesses. When it is necessary to clamp the workpiece, the electromagnet 4024 is energized, and at this time, magnetism is generated, and the magnetic fluid inside the fixed cylinder 4021 solidifies, so that the lower pressing rod 4023 stably clamps the workpiece, clamps the workpiece according to different sizes, and cooperates with the rotation of the support tray 4 to ensure the stability of the workpiece during bending and avoid errors in bending caused by the shaking of the workpiece.

[0058] When the lower pressing rod 4023 rises, the magnetic fluid inside the fixed cylinder 4021 is squeezed into the electromagnet 4024. When the lower pressing rod 4023 descends, the magnetic fluid enters the fixed cylinder 4021 through the replenishing cylinder 4026.

[0059] As Figures 5 to 6 shown, Embodiment 4: The two auxiliary clamping plates 402 are rotatably connected with a driving wheel 405. A rotating rod 406 is arranged inside the support tray 4. The rotating rod 406 sequentially penetrates through the driving wheel 405 and is movably connected with the driving wheel 405. A limiting groove is formed on the outer side of the rotating rod 406. A convex block is fixedly connected inside the driving wheel 405. The convex block extends into the limiting groove formed on the outer side of the rotating rod 406 and is slidably connected with the rotating rod 406. A first motor is fixedly connected to the outer side of the support tray 4, and the output shaft of the first motor is fixedly connected with the rotating rod 406.

[0060] During specific implementation, when it is necessary to further bend other positions of the workpiece, the electromagnet 4024 is powered off to release the fixation of the workpiece. At this time, by starting the first motor, the output shaft of the first motor drives the rotating rod 406 to rotate. The rotating rod 406 cooperates with the convex block of the driving wheel 405 through the limiting groove to drive the driving wheel 405 to rotate, thereby pushing the workpiece to move and adjusting the bending position of the workpiece.

[0061] A method for using a bending machine is also provided, including the following steps:

[0062] Step 1: First, place the workpiece to be bent on the bending die 3, and drive the two auxiliary clamping plates 402 to clamp and support both sides of the workpiece by starting the driving member;

[0063] Step 2: When the auxiliary clamping plate 402 moves, it drives the seal to move inside the lubricating pipe 601 through the connecting piece, adjusts the spraying range of the spray head 602 on the outer side of the lubricating pipe 601 according to the size of the workpiece, and lubricates the bending part of the workpiece.

[0064] Step 3: Finally, start the hydraulic telescopic cylinder 201, and the hydraulic telescopic cylinder 201 pushes the bending knife 2 downward to bend the workpiece.

[0065] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0066] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0067] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending machine that can be used for different bending requirements, comprising a bending machine device (1), wherein a bending die (3) is fixedly connected to the bottom end of the bending machine device (1), a bending knife (2) is arranged at the top end of the bending machine device (1), a hydraulic telescopic cylinder (201) is fixedly connected to the top end of the bending machine device (1), and an output end of the hydraulic telescopic cylinder (201) is fixedly connected to the bending knife (2), characterized in that: Also includes: A support plate (4), both sides of the support plate (4) are fixedly connected with rotating arms (401), the two rotating arms (401) are respectively rotatably connected to the bending machine equipment (1), the top of the support plate (4) is provided with two auxiliary clamping plates (402), and the top of the support plate (4) is provided with a driving member for driving the two auxiliary clamping plates (402) to clamp the two sides of the workpiece; A connecting tube (6), both ends of the connecting tube (6) are fixedly connected with lubrication tubes (601), the outer sides of the two lubrication tubes (601) are fixedly connected with a plurality of nozzles (602) for spraying lubrication on the workpieces, the insides of the two lubrication tubes (601) are slidably connected with sealing members, a connecting member is provided between the sealing member and the auxiliary clamping plate (402), and the auxiliary clamping plate (402) drives the sealing member to slide inside the lubrication tube (601) through the connecting member, so as to adjust the spraying range of the lubrication tube (601) according to workpieces of different sizes; The sealing member comprises a rotating ring (6011) which is fitted with the inner wall of the lubrication tube (601), the rotating ring (6011) is rotatably connected with a magnetic ring (6012), the magnetic ring (6012) is fixedly connected with a sealing plate (6013), the lubrication tube (601) is provided with a plurality of baffles (6014) inside, the plurality of baffles (6014) are arranged outside the rotating ring (6011) and are slidably connected with the rotating ring (6011), the plurality of baffles (6014) are fixedly connected with an impeller (6015) at one end close to the connecting tube (6), the impeller (6015) is rotatably connected with the inner wall of the lubrication tube (601), and when the lubricating liquid enters the rear lubrication tube (601) and passes through the impeller (6015), the impeller (6015) is driven to rotate; The connecting member comprises a sliding frame (7) fixedly connected to the outside of the bending machine equipment (1); the outside of the sliding frame (7) is slidably connected to two sliding seats (701); the tops of the two sliding seats (701) are fixedly connected to an open annular plate (702); the open annular plate (702) is sleeved on the outside of the lubrication pipe (601); the inner wall of the open annular plate (702) is fixedly connected to a magnet ring; the magnet ring is magnetically attracted to the magnetic attraction ring (6012).

2. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: A storage cylinder (603) is fixedly connected to the top of the bending machine equipment (1), a delivery pump is arranged inside the storage cylinder (603), an output end of the delivery pump is fixedly connected to a liquid infusion tube (604), and the liquid infusion tube (604) is fixedly connected to the connecting cylinder (6).

3. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: The connecting member further comprises an arc-shaped plate (703) fixedly connected to the bottom of the auxiliary clamping plate (402), a contact plate (704) being fixedly connected to the outer side of the arc-shaped plate (703), a sliding groove being provided on a side of the sliding seat (701) close to the auxiliary clamping plate (402), the contact plate (704) extending to the inside of the sliding groove on the outer side of the sliding seat (701) and being slidably connected to the sliding seat (701).

4. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: The bending machine device (1) is rotatably connected to a rotating shaft (501) on both sides, and a transmission gear (502) and a winding disk (503) are fixedly connected to the outer side of the rotating shaft (501). The bending knife (2) is fixedly connected to a rack (507) on both sides, and the rack (507) is meshingly connected to the transmission gear (502). A connecting tube (505) is sleeved on the outer side of the rotating shaft (501), and the connecting tube (505) is fixedly connected to the bending machine device (1). A torsion spring (506) is fixedly connected between the connecting tube (505) and the rotating shaft (501). A traction rope (504) is fixedly connected to the outer side of the winding disk (503), and the other end of the traction rope (504) is fixedly connected to the support plate (4). A guide wheel is fixedly connected to the top of the interior of the bending machine device (1), and the traction rope (504) passes through the guide wheel.

5. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: The top of the auxiliary clamping plate (402) is fixedly connected to a fixed cylinder (4021), the interior of the fixed cylinder (4021) is slidably connected to an electromagnet (4024), the bottom of the electromagnet (4024) is fixedly connected to a pressing rod (4023), the pressing rod (4023) penetrates the fixed cylinder (4021) and is slidably connected to the fixed cylinder (4021), a return spring (4025) is fixedly connected between the electromagnet (4024) and the fixed cylinder (4021), the top of the auxiliary clamping plate (402) is fixedly connected to a supplementary cylinder (4026), a connecting pipe is fixedly connected between the supplementary cylinder (4026) and the fixed cylinder (4021), a magnetic fluid is filled between the fixed cylinder (4021) and the electromagnet (4024), and the electromagnet (4024) generates magnetism when energized, so that the magnetic fluid solidifies.

6. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: The two auxiliary clamping plates (402) are rotatably connected to a driving wheel (405); a rotating rod (406) is arranged inside the supporting plate (4); the rotating rod (406) passes through the driving wheel (405) in sequence and is movably connected to the driving wheel (405); a limiting groove is provided on the outer side of the rotating rod (406); a protrusion is fixedly connected inside the driving wheel (405); the protrusion extends into the limiting groove provided on the outer side of the rotating rod (406) and is slidably connected to the rotating rod (406); a first motor is fixedly connected to the outer side of the supporting plate (4); and an output shaft of the first motor is fixedly connected to the rotating rod (406).

7. A bending machine capable of meeting different bending requirements according to claim 1, characterized in that: The driving member comprises a bidirectional screw (403) penetrating the support plate (4) and being rotatably connected to the support plate (4); the bidirectional screw (403) penetrating two auxiliary clamping plates (402) and being connected to the auxiliary clamping plates (402) via a ball nut pair; a limit rod (404) is fixedly connected inside the support plate (4); the limit rod (404) penetrating the auxiliary clamping plates (402) and being slidably connected to the auxiliary clamping plates (402); a second motor is fixedly connected to the outside of the support plate (4); and an output shaft of the second motor is fixedly connected to the bidirectional screw (403).

8. A method for using a bending machine, applicable to a bending machine capable of meeting different bending requirements as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: First, the workpiece is placed on the bending die (3) at the part where it needs to be bent, and the driving member is started to drive two auxiliary clamping plates (402) to clamp and support both sides of the workpiece; Step 2: When the auxiliary clamping plate (402) moves, the sealing member is driven to move inside the lubrication tube (601) through the connecting member, and the spraying range of the nozzle (602) outside the lubrication tube (601) is adjusted according to the size of the workpiece to lubricate the bending part of the workpiece; Step 3: Finally, the hydraulic telescopic cylinder (201) is started, and the hydraulic telescopic cylinder (201) pushes the bending knife (2) to descend, thereby performing a bending process on the workpiece.

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