Plasma cutting device and method for female die of fine blanking die

Abstract

The invention provides a fine blanking die female die plasma cutting device and method.The fine blanking die female die plasma cutting device comprises a support and further comprises a machining platform at the top of the support, and a bending mechanism and a cutting mechanism are arranged at the top of the machining platform. The front and back cutting positions of the workpiece are bent in cooperation with application of adjustable up-and-down pulling force, so that cutting openings in the front and back faces of the workpiece are continuously expanded in a v shape, and the workpiece generates metal fatigue through repeated bending of the front and back faces so as to improve the cutting efficiency; and an anti-reflection agent can be conveniently dispensed into a cutting opening, so that the cutting efficiency of the device is greatly improved, and the device is suitable for cutting operation of workpieces with relatively large thicknesses.

Description

Technical Field

[0001] The present invention relates to the technical field of concave die cutting, and particularly relates to a plasma cutting device and method for a fine blanking die concave die. Background Art

[0002] ‌The fine blanking die concave die‌ is the main part for forming the outer surface of the plastic part, usually called the cavity die. The concave die plays a crucial role in the fine blanking die. It not only determines the shape and dimensional accuracy of the plastic part, but also directly affects the surface quality and cross-section quality of the product. The design and manufacture of the concave die need to be highly precise to ensure that the plastic deformation of the material during the stamping process can achieve the expected effect.

[0003] Chinese Patent CN202121154574.6 discloses a numerical control fiber laser plasma cutting device for machining mechanical parts and components, including a cutting table. A first positioning rod is screwed to the front of the cutting table, and a first electric push rod is screwed to the outer wall of the first positioning rod. One end of the first electric push rod is equipped with a connecting rod, and second positioning rods are screwed to both ends of the connecting rod. A connecting block is screwed to the outer wall of the second positioning rod, and a third positioning rod is screwed to the inner wall of the connecting block. A second electric push rod is screwed to the outer wall of the third positioning rod, and a first connecting sleeve is welded to one end of the second electric push rod. For this numerical control fiber laser plasma cutting device for machining mechanical parts and components, a regulating plate is provided to play a role in clamping and fixing the regulating frame. When using the device, the setting of the regulating plate facilitates adjusting parts of different sizes according to the usage requirements, increasing the usability of the device.

[0004] However, there are certain drawbacks when this technical solution is used. This plasma laser cutting device is the same as traditional plasma cutting devices. When the thickness of the die plate is relatively thick, it is not convenient to cut and process the relatively thick plate, and the cutting efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art and provide a plasma cutting device and method for a fine blanking die concave die, which realizes the cutting function through the cooperation of a bending mechanism and a cutting mechanism to solve the problem of inconvenient cutting of relatively thick plates.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A plasma cutting device for the female die of a fine blanking die, including a bracket a, and further including a processing platform at the top of the bracket a, with a bending mechanism and a cutting mechanism arranged on the top of the processing platform; the bending mechanism includes a bracket b arranged on the top of the processing platform, a support plate a fixedly connected to the top of the bracket b, one side of the support plate a is movably connected to a support plate b, side plates a are arranged on the tops of both the support plate a and the support plate b, side plates b are arranged on the bottoms of both the support plate a and the support plate b, a cutting groove is provided at the connection of the support plate a and the support plate b, two groups of movable blocks are arranged on the inner wall of the groove of the support plate b, two groups of movable seats are arranged on both sides of the support plate a, multiple connecting rods are arranged at the bottom of one end of the support plate b, and a driving component, a tension component, a limiting component, a cooling component and a heat dissipation component are arranged on the bracket b.

[0007] The driving component includes: a base arranged on the processing platform; a motor a arranged inside the base; a reduction gear set arranged inside the base; a rotating shaft penetrating and connected inside the base; a runner arranged on the rotating shaft and one end of the movable block; a belt arranged on the runner.

[0008] The tension component includes: a side frame a fixedly connected to the processing platform; two groups of slide rails a fixedly connected to the side frame a; a limit block arranged on the slide rails a; a pull rod a movably connected to the slide rails a; a pull rod b movably connected to one end of the pull rod a; two groups of pin columns fixedly connected to both sides of the support plate b; a hydraulic cylinder with both ends respectively connected to the pull rod a and the pull rod b; a rod head movably connected to the tail end of the pull rod a; an electric telescopic rod a arranged at the bottom of the limit block.

[0009] The limiting component includes: a side plate c fixedly connected to the support plate a and the support plate b; a movable plate movably connected to one side of the side plate c; an electric telescopic rod b arranged on the side plate c; a guide rod arranged on the movable plate; two groups of telescopic plates arranged on the side plate a; an electric telescopic rod c arranged on one side of the telescopic plate; an electromagnetic box arranged at the bottom end of one side of the movable plate; multiple electromagnetic seats arranged inside the electromagnetic box; an electromagnetic plate arranged at the bottom of the electromagnetic box.

[0010] The cooling component includes: a heat-conducting square tube embedded in the bottom of the movable plate; multiple heat-conducting fins arranged at the bottom of the heat-conducting square tube; multiple heat-resistant rubber sheets arranged at the bottom of the heat-conducting square tube; a coolant station arranged on the side plate a; a circulating pump arranged on one side of the coolant station; a liquid filling pipe arranged on the circulating pump; a liquid outlet pipe penetrating and connected to one end of the heat-conducting square tube.

[0011] The heat dissipation component includes: a current-carrying plate, multiple groups of current-carrying plates are staggered and distributed within the coolant station; movable pins, two groups of movable pins are fixedly connected to both sides of the current-carrying plate; locking nuts, the locking nuts are threadedly connected to one end of the movable pins; a liquid discharge trough, the liquid discharge trough is formed in the gaps between multiple groups of current-carrying plates; a gas fan, the gas fan is arranged on the top of the coolant station; a protective cover, the protective cover is arranged outside the gas fan.

[0012] The cutting mechanism includes a side frame b arranged on the top of the processing platform. A sliding frame is movably connected to one side of the side frame b. A traction component, a lifting component, a transverse movement component, an adjustment component, a cutting component, and a camera component are arranged on the side frame b. The traction component includes: a bottom plate, the bottom plate is arranged at the bottom of the side frame b; a limit frame, the limit frame is arranged on the processing platform; an electric telescopic rod d, the electric telescopic rod d is arranged on the processing platform.

[0013] The lifting component includes: two groups of cylinders a, the two groups of cylinders a are arranged on the side frame b; two groups of slide rails b, the two groups of slide rails b are fixedly connected to the side frame b; the transverse movement component includes: a cross beam, the cross beam is movably connected to the sliding frame; two groups of motors c, the two groups of motors c are arranged at both ends of the cross beam; rollers, the rollers are arranged at one end of the output shafts of the two groups of motors c; two groups of guide rails, the two groups of guide rails are arranged on the cross beam; the adjustment component includes: an adjustment plate, the adjustment plate is movably connected to one side of the cross beam; a cylinder b, the cylinder b is arranged at one end of the cross beam; a motor d, the motor d is arranged on the top of the adjustment plate; a lead screw, the lead screw is arranged at the bottom end of the output shaft of the motor d.

[0014] The cutting component includes: an equipment plate, the equipment plate is movably connected to one side of the adjustment plate; an assembly seat, the assembly seat is fixedly connected to one side of the equipment plate; a turntable, the turntable is movably connected to one side of the assembly seat; a stepping motor, the stepping motor is arranged inside the assembly seat; three groups of mounting plates, the three groups of mounting plates are fixedly connected to the turntable; a cutting head, the cutting head is arranged on the mounting plate; a cleaning rod, the cleaning rod is arranged on the mounting plate; a drip nozzle, the drip nozzle is arranged on the mounting plate; a conduit, the conduit is arranged on the mounting plate; the camera component includes: a monitoring seat, the monitoring seat is arranged on the turntable; a camera, the camera is arranged on the camera head.

[0015] A cutting method for a plasma cutting device of a fine blanking die concave mold includes the following steps: Step 1, limiting process: Place the die workpiece on the support plate a and the support plate b through a robotic arm, and drive the movable plates on the two support plates to move to the edge of the cutting position through the electric telescopic rod b. Drive the movable plate to move downward through the electric telescopic rod c to press the two side edges of the cutting position of the die workpiece, and limit and fix the die workpiece by the magnetic force imparted to the electromagnetic plate by the energization of multiple electromagnetic seats in the electromagnetic box. Step 2, Front Initial Cutting Process: The electric telescopic rod d is used to push the side frame b as a whole towards the support b, so that the sliding frame is above the support b; then the cylinder a is used to adjust the overall height of the sliding frame and the cutting equipment over a large range; the motor c drives the roller to rotate on the guide rail, and the cross beam is driven to move by the frictional force to adjust the horizontal position of the cutting equipment; the cylinder b is used to adjust the longitudinal position of the cutting equipment, and finally the motor d drives the screw rod to rotate to finely adjust the height of the cutting equipment; the stepping motor drives the turntable to rotate, so that the cutting head faces down and contacts the mold workpiece, and the moving component is cooperated to perform the initial cutting on the mold workpiece; Step 3, Lower Bending Process: After the front initial cutting is completed, the motor a drives clockwise, the reduction gear set reduces the speed, and the rotation of the runner and the belt drive drive the movable block and the support plate b to deflect slightly along the movable seat on the support plate a. At the same time, the electric telescopic rod a drives one end of the two pull rods a to move downward to the bottom end of the support plate a, and the hydraulic cylinder pulls the pull rod b to retract. The pulling force is applied to one end of the support plate b through the movable connection between the pull rod b and the pin on the support plate b, so that the bending force is further increased. Restricted by the upper limit component, the workpiece plate will bend slightly downward along the front cutting place to form a V-shaped notch; Step 4, Front Secondary Cutting Process: The stepping motor drives the turntable to rotate again, and the cleaning rod and the drip nozzle are respectively turned downward and contact the V-shaped notch formed by the bending. The cleaning rod is cooperated with the moving component to clean the V-shaped notch groove of the mold workpiece, and the drip nozzle is cooperated with the moving component to drip the penetrant into the V-shaped notch groove of the mold workpiece. Finally, the cutting head performs the front secondary cutting in the V-shaped notch; Step 5, Back Initial Cutting Process: The electric telescopic rod d is used to pull the side frame b as a whole away from the support b, so that the sliding frame is away from the support b. Then the cylinder a pulls down the sliding frame and the cutting equipment as a whole to be below the support b. The electric telescopic rod d is used again to push the sliding frame to below the support b. After adjustment and rotation, the back of the mold workpiece is initially cut through the cutting grooves on the support plate a and the support plate b; Step 6, Upper Bending Process: After the back initial cutting is completed, the motor a is driven to rotate counterclockwise. After a series of speed reduction transmissions, the support plate b is driven to deflect upward slightly. At the same time, the electric telescopic rod a drives one end of the two pull rods a to move upward to the top end of the support plate a, so that the hydraulic cylinder applies a pulling force to one end of the support plate b upward, and the workpiece plate will bend slightly upward along the back cutting place to form a V-shaped notch; Step 7, Back Secondary Cutting Process: Similarly, the cutting head, the cleaning rod and the drip nozzle are used to clean, increase the transparency and cut the cutting place after the back is bent. Repeating the above operations several times in sequence can cut the relatively thick mold workpiece Step 8. Cooling process: The low-temperature coolant at the bottom of the coolant station is pumped out by a circulating pump and injected into the heat-conducting square tube through a liquid filling pipe. The cutting part of the workpiece is cooled by the contact between the heat-conducting square tube and multiple groups of heat-conducting fins at the bottom with the mold workpiece. The coolant with a higher temperature after heat exchange flows back to the coolant station through the liquid outlet pipe. The high-temperature coolant flowing back is cooled by the blocking of multiple groups of staggered flow-extending plates and the air exchange of the upper air fan. The cooled coolant accumulates at the bottom of the coolant station and is pumped out by the circulating pump for circulating cooling.

[0016] The beneficial effects of the present invention are as follows: (1) In the present invention, through the clockwise and counterclockwise rotation drive of the motor a in the driving mechanism, and the application of adjustable up and down pulling force, the bending of the cutting parts on the front and back sides of the workpiece is realized, so that the cutting openings on the front and back sides of the workpiece continuously expand in a V shape. By repeatedly bending the front and back sides, the workpiece generates metal fatigue to improve the cutting efficiency. At the same time, it is convenient for the plasma cutting head to enter for cutting, and it is convenient to drop the antireflection agent into the cutting opening, thus greatly improving the cutting efficiency of the device and being applicable to the cutting operation of workpieces with a relatively thick thickness.

[0017] (2) In the present invention, through multiple groups of moving adjustment mechanisms in the cutting mechanism, in cooperation with the horizontal and vertical moving components, the mold workpiece is accurately cut reciprocally. And through the setting of the traction component and the motor of the rotation adjustment function head, while realizing the cutting of the front and back sides of the workpiece, the integrated setting of cleaning, antireflection and cutting further improves the cutting effect.

[0018] (3) In the present invention, the heat generated during the cutting of the workpiece is conducted through the contact between the heat-conducting square tube and the cutting part of the workpiece. The pump in the coolant station provides low-temperature coolant for the heat-conducting square tube in a cycle through the liquid filling pipe to replace the high-temperature coolant after being heated. The high-temperature coolant flows back to the coolant station through the liquid outlet pipe, and is cooled by the blocking of multiple groups of staggered flow-extending plates and the heat exchange with air contact as well as the heat dissipation of the air fan. The cooled coolant accumulates at the bottom of the coolant station for recycling, so as to realize the efficient cooling of the cutting part of the workpiece and avoid the workpiece loss caused by the change of the molecular structure of the plate due to high temperature.

[0019] In summary, the present invention has the advantages of high efficiency and precision. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic top view structure of the present invention; Figure 3 It is a schematic partial front view structure of the present invention; Figure 4 It is a schematic partial side view structure of the present invention; Figure 5Schematic diagram of the overall structure of the bending mechanism of the present invention; Figure 6 Schematic diagram of the disassembled structure of the bending mechanism of the present invention; Figure 7 Schematic diagram of the structure of the bending component of the present invention; Figure 8 Schematic diagram of the connection structure of the support plate of the present invention; Figure 9 Schematic diagram of the structure of the driving component of the present invention; Figure 10 Schematic diagram of the structure of the tension component of the present invention; Figure 11 Schematic diagram of the overall structure of the limiting component of the present invention; Figure 12 Schematic diagram of the disassembled structure of the limiting component of the present invention; Figure 13 Schematic diagram of the structure of the magnetic box of the present invention; Figure 14 Schematic diagram of the overall structure of the cooling component of the present invention; Figure 15 Schematic diagram of the partial structure of the cooling component of the present invention; Figure 16 Schematic diagram of the disassembled structure of the heat dissipation component of the present invention; Figure 17 Schematic diagram of the sectional structure of the heat dissipation component of the present invention; Figure 18 Schematic diagram of the front structure of the cutting mechanism of the present invention; Figure 19 Schematic diagram of the side structure of the cutting mechanism of the present invention; Figure 20 Schematic diagram of the disassembled structure of the cutting mechanism of the present invention; Figure 21 Schematic diagram of the disassembled structure of the cutting component of the present invention; Figure 22 Schematic diagram of the partial structure of the cutting component of the present invention.

[0021] The reference numerals of the present application are as follows: 1, bracket a; 2, processing platform; 3, bending mechanism; 301, bracket b; 302, support plate a; 303, support plate b; 304, side plate a; 305, side plate b; 306, cutting groove; 307, movable block; 308, movable seat; 309, connecting rod; 31, driving assembly; 311, base; 312, motor a; 313, reduction gear set; 314, rotating shaft; 315, runner; 316, belt; 32, tension assembly; 321, side frame a; 322, slide rail a; 323, limiting block; 324, pull rod a; 325, pull rod b; 326, pin; 327, hydraulic cylinder; 328, rod head; 329, electric telescopic rod a; 33, limiting assembly; 331, side plate c; 332, movable plate; 333, electric telescopic rod b; 334, guide rod; 335, telescopic plate; 336, electric telescopic rod c; 337, electromagnetic box; 338, electromagnetic seat; 339, electromagnetic plate; 34, cooling assembly; 341, heat-conducting square pipe; 342, heat-conducting fins; 343, heat-resistant rubber sheet; 344, coolant station; 345, circulation pump; 346, liquid filling pipe; 347, liquid outlet pipe; 35, heat dissipation assembly; 351, flow-extending plate; 352, movable pin; 353, locking nut; 354, lower liquid tank; 355, air fan; 356, protective cover; 4, cutting mechanism; 401, side frame b; 402, sliding frame; 41, traction assembly; 411, bottom plate; 412, limiting frame; 413, electric telescopic rod d; 42, lifting assembly; 421, cylinder a; 422, slide rail b; 43, transverse movement assembly; 431, cross beam; 432, motor c; 433, roller; 434, guide rail; 44, adjustment assembly; 441, adjustment plate; 442, cylinder b; 443, motor d; 444, lead screw; 45, cutting assembly; 451, equipment plate; 452, assembly seat; 453, turntable; 454, stepping motor; 455, mounting plate; 456, cutting head; 457, cleaning rod; 458, drip nozzle; 459, conduit; 46, camera assembly; 461, monitoring seat; 462, camera. Detailed implementation manners

[0022] 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 of 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.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0025] Embodiment 1: As Figures 1 - 22 shown, this embodiment provides a plasma cutting device for the female die of a fine blanking die, including a bracket a1, and further including a processing platform 2 on the top of the bracket a1. A bending mechanism 3 and a cutting mechanism 4 are arranged on the top of the processing platform 2; the bending mechanism 3 includes a bracket b301 arranged on the top of the processing platform 2. A support plate a302 is fixedly connected to the top of the bracket b301. One side of the support plate a302 is movably connected to a support plate b303. Side plates a304 are arranged on the tops of the support plate a302 and the support plate b303. Side plates b305 are arranged on the bottoms of the support plate a302 and the support plate b303. A cutting groove 306 is formed at the connection of the support plate a302 and the support plate b303. Two groups of movable blocks 307 are arranged on the inner wall of the groove of the support plate b303. Two groups of movable seats 308 are arranged on both sides of the support plate a302. A plurality of connecting rods 309 are arranged at the bottom of one end of the support plate b303. A driving assembly 31, a tension assembly 32, a limiting assembly 33, a cooling assembly 34, and a heat dissipation assembly 35 are arranged on the bracket b301.

[0026] In this embodiment, the support plate a302 and the support plate b303 achieve docking and rotation through the movable connection of the two groups of movable blocks 307 and the two groups of movable seats 308, providing adjustment for bending. The opening of the cutting groove 306 facilitates the penetration of the cutting head 456 and the cutting operation during the back cutting.

[0027] The driving assembly 31 includes: a base 311, the base 311 is arranged on the processing platform 2; a motor a 312, the motor a 312 is arranged inside the base 311; a reduction gear set 313, the reduction gear set 313 is arranged inside the base 311; a rotating shaft 314, the rotating shaft 314 is connected through the base 311; a runner 315, the runner 315 is arranged at one end of the rotating shaft 314 and the movable block 307; a belt 316, the belt 316 is arranged on the runner 315.

[0028] In this embodiment, after the motor a 312 drives through clockwise and counterclockwise rotation and is decelerated by the reduction gear set 313, the power is output by the rotating shaft 314 and further transmitted by the belt 316 on the runner 315 to drive the rotation, so as to drive the support plate b 303 and make it deflect with small bends in two directions up and down, and further realize the bending of the cutting part of the workpiece.

[0029] The tension assembly 32 includes: a side frame a 321, the side frame a 321 is fixedly connected to the processing platform 2; two slide rails a 322, the two slide rails a 322 are fixedly connected to the side frame a 321; a limit block 323, the limit block 323 is arranged on the slide rail a 322; a pull rod a 324, the pull rod a 324 is movably connected to the slide rail a 322; a pull rod b 325, the pull rod b 325 is movably connected to one end of the pull rod a 324; two pin columns 326, the two pin columns 326 are fixedly connected to both sides of the support plate b 303; a hydraulic cylinder 327, both ends of the hydraulic cylinder 327 are respectively connected to the pull rod a 324 and the pull rod b 325; a rod head 328, the rod head 328 is movably connected to the tail end of the pull rod a 324; an electric telescopic rod a 329, the electric telescopic rod a 329 is arranged at the bottom of the limit block 323.

[0030] In this embodiment, the electric telescopic rod a 329 can pull the rod head 328 of the pull rod a 324 to move up and down along the slide rail a 322, so as to adjust the direction of the applied tension. And through the pressure applied by the hydraulic cylinder 327 and in cooperation with the driving assembly 31, the bending efficiency can be improved, which is suitable for processing workpieces with relatively thick thickness.

[0031] The limiting assembly 33 includes: a side plate c 331, the side plate c 331 is fixedly connected to the support plate a 302 and the support plate b 303; a movable plate 332, the movable plate 332 is movably connected to one side of the side plate c 331; an electric telescopic rod b 333, the electric telescopic rod b 333 is arranged on the side plate c 331; a guide rod 334, the guide rod 334 is arranged on the movable plate 332; two telescopic plates 335, the two telescopic plates 335 are arranged on the side plate a 304; an electric telescopic rod c 336, the electric telescopic rod c 336 is arranged on one side of the telescopic plate 335; an electromagnetic box 337, the electromagnetic box 337 is arranged at the bottom end of one side of the movable plate 332; a plurality of electromagnetic seats 338, the plurality of electromagnetic seats 338 are arranged inside the electromagnetic box 337; an electromagnetic plate 339, the electromagnetic plate 339 is arranged at the bottom of the electromagnetic box 337.

[0032] In this embodiment, the electric telescopic rod b333 drives the movable plate 332 to expand and contract horizontally, so as to drive the movable plate 332 and the electromagnetic plate 339 to the cutting edge of the workpiece, and the workpiece is pressed through the downward traction and pressure of the electric telescopic rod c336 on the telescopic plate 335. At the same time, the electromagnetic force given to the electromagnetic plate 339 by the energization of the electromagnetic seat 338 in the electromagnetic box 337 is used to further adsorb and fix the workpiece, which can limit the edges on both sides of the cutting port while ensuring the stability of the workpiece, and reduce the deformation caused by bending.

[0033] The cooling component 34 includes: a heat-conducting square tube 341, which is fitted to the bottom of the movable plate 332; a plurality of heat-conducting fins 342, which are arranged at the bottom of the heat-conducting square tube 341; a plurality of heat-resistant rubber sheets 343, which are arranged at the bottom of the heat-conducting square tube 341; a coolant station 344, which is arranged on the side plate a304; a circulation pump 345, which is arranged on one side of the coolant station 344; a liquid filling pipe 346, which is arranged on the circulation pump 345; and a liquid outlet pipe 347, which is connected through one end of the heat-conducting square tube 341.

[0034] In this embodiment, both the heat-conducting square tube 341 and the plurality of heat-conducting fins 342 are made of metal copper, which has good heat conductivity. Thus, when contacting the cutting part of the workpiece, the heat generated during the cutting of the workpiece is transferred to the coolant in the heat-conducting square tube 341 to achieve the cooling function. The settings of the circulation pump 345, the liquid filling pipe 346 and the liquid outlet pipe 347 realize the circulation of the coolant to achieve circulating cooling, avoid changing the molecular structure of the workpiece at high temperature, and reduce the loss.

[0035] The heat dissipation component 35 includes: a current-carrying plate 351, and a plurality of current-carrying plates 351 are distributed in a staggered manner in the coolant station 344; two movable pins 352, which are fixedly connected to both sides of the current-carrying plate 351; a locking nut 353, which is threadedly connected to one end of the movable pin 352; a liquid-down tank 354, which is formed in the gaps between the plurality of current-carrying plates 351; a gas fan 355, which is arranged on the top of the coolant station 344; and a protective cover 356, which is arranged outside the gas fan 355.

[0036] In this embodiment, multiple sets of flow - down plates 351 are staggered to form a lower liquid tank 354. When the coolant flows back into the coolant station 344 through the liquid outlet pipe 347, it will slowly fall along the surfaces of the multiple sets of flow - down plates 351 and the lower liquid tank 354. During the falling process, it exchanges heat with the air and drives the air circulation alternately through the air fan 355 to achieve the heat dissipation effect of the coolant, ensuring the temperature inside the coolant station 344 and the overall cooling effect. The settings of the movable pins 352 and locking nuts 353 at both ends of the flow - down plate 351 can adjust the inclination angle of the flow - down plate 351. The larger the inclination angle, the faster the coolant flow rate; conversely, the slower the flow rate and the better the heat dissipation effect. Thus, the heat dissipation effect can be freely adjusted according to the usage requirements, further improving the applicability of the device.

[0037] The cutting mechanism 4 includes a side frame b401 provided at the top of the processing platform 2. A sliding frame 402 is movably connected to one side of the side frame b401. The side frame b401 is provided with a traction component 41, a lifting component 42, a transverse movement component 43, an adjustment component 44, a cutting component 45, and a camera component 46. The traction component 41 includes: a bottom plate 411, the bottom plate 411 is provided at the bottom of the side frame b401; a limit frame 412, the limit frame 412 is provided on the processing platform 2; an electric telescopic rod d413, the electric telescopic rod d413 is provided on the processing platform 2.

[0038] In this embodiment, the electric telescopic rod d413 pulls the side frame b401 and the entire cutting structure to move. When moving, the bottom plate 411 slides along the limit frame 412 for guidance, so that the position of the entire cutting structure can be adjusted to avoid the bending mechanism 3, further facilitating the cutting of the back surface of the workpiece.

[0039] The lifting component 42 includes: two cylinders a421, the two cylinders aa421 are provided on the side frame b401; two slide rails b422 are fixedly connected to the side frame b401. The transverse movement component 43 includes: a cross beam 431, the cross beam 431 is movably connected to the sliding frame 402; two motors c432 are provided at both ends of the cross beam 431; rollers 433 are provided at one end of the output shafts of the two motors c432; two guide rails 434 are provided on the cross beam 431. The adjustment component 44 includes: an adjustment plate 441, the adjustment plate 441 is movably connected to one side of the cross beam 431; a cylinder b442, the cylinder b442 is provided at one end of the cross beam 431; a motor d443, the motor d443 is provided at the top of the adjustment plate 441; a lead screw 444, the lead screw 444 is provided at the bottom end of the output shaft of the motor d443.

[0040] In this embodiment, the cylinder a421 can adjust the height of the cutting device over a large range, and further move the cutting device to the front and back of the workpiece; the motor c432 can drive the roller 433 on the guide rail 434, and drive the cross beam 431 and the cutting device as a whole to move and adjust the longitudinal position through friction; the cylinder b442 can drive the cutting device to move horizontally as a whole, and adjust the horizontal position while reciprocating for cutting; the motor d443 drives the screw rod 444 to rotate, and the nut on the back of the equipment board 451 is threadedly connected to the screw rod 444, and after being guided by the slider, the height of the cutting device is finely adjusted.

[0041] The cutting assembly 45 includes: an equipment board 451, which is movably connected to one side of the adjustment board 441; a mounting seat 452, which is fixedly connected to one side of the equipment board 451; a turntable 453, which is movably connected to one side of the mounting seat 452; a stepping motor 454, which is arranged inside the mounting seat 452; three mounting plates 455, which are fixedly connected to the turntable 453; a cutting head 456, which is arranged on the mounting plate 455; a cleaning rod 457, which is arranged on the mounting plate 455; a drip nozzle 458, which is arranged on the mounting plate 455; a conduit 459, which is arranged on the mounting plate 455; the imaging assembly 46 includes: a monitoring seat 461, which is arranged on the turntable 453; a camera 462, which is arranged on the camera 462.

[0042] In this embodiment, the stepping motor 454 drives the turntable 453 to rotate, so that the angular positions of the cutting head 456, the cleaning rod 457 and the drip nozzle 458 can be adjusted to adapt to the front and back cutting, cleaning and anti-reflection dripping coating, and further adapt to the angle of the cutting edge after bending. The motor in the monitoring seat 461 can adjust the angle of the camera 462, which is convenient for remote docking during cutting through the camera 462.

[0043] Embodiment 2: As Figures 1 - 22 shown, the same or corresponding components as those in Embodiment 1 are marked with corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this Embodiment 2 and Embodiment 1 is as follows: A cutting method for a plasma cutting device of a fine blanking die concave mold includes the following steps: Step 1, limiting process: Place the mold workpiece on the support plate a302 and the support plate b303 through the robotic arm, and drive the movable plates 332 on the two support plates to move to the edge of the cutting position through the electric telescopic rod b333. Drive the movable plate 332 to move downward through the electric telescopic rod c336 to press the two sides of the cutting position of the mold workpiece, and apply the magnetic force given to the electromagnetic plate 339 by energizing the multiple electromagnetic seats 338 in the electromagnetic box 337 to limit and fix the mold workpiece. Step 2. Front primary cutting process: The electric telescopic rod d413 is used to push the entire side frame b401 towards the bracket b301, so that the sliding frame 402 is above the bracket b301; then the cylinder a421 is used to adjust the height of the sliding frame 402 and the cutting equipment as a whole over a large range; the motor c432 drives the roller 433 to rotate on the guide rail 434, and the cross beam 431 is driven to move by friction to adjust the lateral position of the cutting equipment; the cylinder b442 is used to adjust the longitudinal position of the cutting equipment, and finally the motor d443 drives the screw rod 444 to rotate to finely adjust the height of the cutting equipment; the stepping motor 454 drives the turntable 453 to rotate, so that the cutting head 456 faces down and contacts the die workpiece, and the moving component is used to perform the primary cutting on the die workpiece; Step 3. Lower bending process: After the front primary cutting is completed, the motor a312 drives clockwise, the reduction gear set 313 reduces the speed, and the runner 315 and the belt 316 drive to drive the movable block 307 and the support plate b303 to deflect slightly along the movable seat 308 on the support plate a302. At the same time, the electric telescopic rod a329 drives one end of the two groups of pull rods a324 to move downward to the bottom end of the support plate a302, and the hydraulic cylinder 327 pulls the pull rod b325 to retract. The pulling force is applied to one end of the support plate b303 through the movable connection between the pull rod b325 and the pin 326 on the support plate b303, so that the bending force is further increased. Restricted by the upper limit component, the workpiece plate will bend slightly downward along the front cutting position to form a V-shaped notch; Step 4. Front secondary cutting process: The stepping motor 454 drives the turntable 453 to rotate again, and the cleaning rod 457 and the drip nozzle 458 are respectively faced down and contact the formed V-shaped notch. The cleaning rod 457 is used to clean the V-shaped notch groove of the die workpiece in cooperation with the moving component, and the drip nozzle 458 is used to drip the antireflection agent into the V-shaped notch groove of the die workpiece in cooperation with the moving component. Finally, the cutting head 456 performs the front secondary cutting in the V-shaped notch; Step 5. Back primary cutting process: The electric telescopic rod d413 is used to pull the entire side frame b401 away from the bracket b301, so that the sliding frame 402 is away from the bracket b301. Then the cylinder a421 pulls down the sliding frame 402 and the cutting equipment as a whole to descend and be below the bracket b301. The electric telescopic rod d413 is used to push the sliding frame 402 to the lower part of the bracket b301 again. After adjustment and rotation, the back of the die workpiece is primarily cut through the cutting grooves 306 on the support plate a302 and the support plate b303; Step 6. Upper bending process: After the initial cutting on the back side is completed, the driving motor a312 rotates counterclockwise. After a series of speed reduction transmissions, it drives the support plate b303 to deflect upward slightly. At the same time, one end of the two groups of tie rods a324 is driven to move upward to the top of the support plate a302 through the electric telescopic rod a329, so that the hydraulic cylinder 327 applies a pulling force upward at one end of the support plate b303, causing the workpiece plate to bend upward slightly along the cutting line on the back side to form a V-shaped notch. Step 7. Second cutting process on the back side: Similarly, the cutting head 456, the cleaning rod 457 and the drip nozzle 458 are used to clean, increase the transparency and cut the cutting line on the back side after bending. Repeating the above operations several times in sequence can cut the relatively thick die workpiece. Step 8. Cooling process: The low-temperature coolant at the bottom of the coolant station 344 is pumped out by the circulating pump 345 and injected into the heat-conducting square tube 341 through the liquid filling pipe 346. The cutting part of the workpiece is cooled by the contact between the heat-conducting square tube 341 and multiple groups of heat-conducting fins 342 at the bottom. The coolant with a higher temperature after heat exchange flows back to the coolant station 344 through the liquid outlet pipe 347. The high-temperature coolant is cooled by the blocking of multiple groups of staggered flow plates 351 and the air exchange of the upper air fan 355 above. The cooled coolant accumulates at the bottom of the coolant station 344 and is pumped out by the circulating pump 345 for circulating cooling.

[0044] It should be noted that in this embodiment, the relatively thick die plate is bent and cut up and down multiple times. The first cut makes a cut on the die plate, and then the die plate is bent (the angle should not be too large). The cut after bending is V-shaped. The penetrant is dripped into the V-shaped cut and the cut is cleaned. The cutting equipment performs the second cut on the V-shaped cut. The cleaning and penetrant enhance the plasma laser cutting effect. Then, after moving the cutting equipment, the same position on the back side of the workpiece is cut, bent after cutting, and the operations of dripping the penetrant and cleaning are coordinated. The operation is repeated to gradually increase the angle of the V-shaped cut and then gradually flip and cut. The increase in the angle of the V-shaped cut facilitates the penetrant to flow into the bottom of the cut, and at the same time is also conducive to the cutting equipment inserting into the V-shaped cut for another cut. Repeat multiple times until the relatively thick die plate is cut off.

[0045] In this embodiment, for the relatively thick die plate, operations such as single-side bending and cutting, up-and-down reciprocating bending and cutting, and up-and-down reciprocating breaking can be performed.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plasma cutting device for a fine blanking die female die, comprising a bracket a (1) and a processing platform (2), characterized in that, It also includes: A bending mechanism (3), which is arranged on the processing platform (2) and is used for reciprocating bending and circulating cooling of the cutting part of the workpiece; A cutting mechanism (4), which is arranged on the processing platform (2) and is used for cutting the workpiece; The bending mechanism (3) includes a support b (301), a support plate a (302), a support plate b (303), a side plate a (304), a side plate b (305), a cutting groove (306), two groups of movable blocks (307), two groups of movable seats (308) and multiple groups of connecting rods (309) that are arranged on the processing platform (2) and are used for restricting, bending and cooling the workpiece. A driving component (31), a tension component (32), a restricting component (33), a cooling component (34) and a heat dissipation component (35) are arranged on the support b (301).

2. The plasma cutting device for the fine blanking die female die according to claim 1, characterized in that, The driving component (31) includes a base (311), a motor a (312), a reduction gear set (313), a rotating shaft (314), a runner (315) and a belt (316) that are arranged on the processing platform (2) and are used for providing initial bending power.

3. The plasma cutting device for the fine blanking die female die according to claim 1, characterized in that, The tension component (32) includes a side frame a (321), a slide rail a (322), a limit block (323), a pull rod a (324), a pull rod b (325), a pin column (326), a hydraulic cylinder (327), a rod head (328) and an electric telescopic rod a (329) that are arranged on the processing platform (2) and are used for providing further bending power.

4. The plasma cutting device for the fine blanking die female die according to claim 1, characterized in that, The restricting component (33) includes a side plate c (331), a movable plate (332), an electric telescopic rod b (333), a guide rod (334), a telescopic plate (335), an electric telescopic rod c (336), an electromagnetic box (337), an electromagnetic seat (338) and an electromagnetic plate (339) that are arranged on the support plate a (302) and the support plate b (303) and are used for restricting the workpiece and pressing the edge of the cutting part.

5. A plasma cutting device for the female die of a fine blanking die according to claim 1, characterized in that, The cooling component (34) includes a heat-conducting square pipe (341), heat-conducting fins (342), heat-resistant rubber sheets (343), a coolant station (344), a circulation pump (345), a liquid filling pipe (346) and a liquid outlet pipe (347) that are arranged on the support b (301) and are used for cooling the cutting part of the workpiece.

6. The plasma cutting device for the fine blanking die female die according to claim 5, characterized in that, The heat dissipation component (35) includes a flow extension plate (351), a movable pin (352), a locking nut (353), a lower liquid tank (354), a gas fan (355) and a protective cover (356) that are arranged on the coolant station (344) and are used for dissipating heat from the coolant.

7. A plasma cutting device for the female die of a fine blanking die according to claim 1, characterized in that, The cutting mechanism (4) includes a side frame b (401) and a sliding frame (402) that are arranged on the top of the processing platform (2) and are used for supporting the cutting structure. A traction component (41), a lifting component (42), a transverse movement component (43), an adjusting component (44), a cutting component (45) and a camera component (46) are arranged on the side frame b (401). The traction assembly (41) includes a base plate (411), a limit frame (412), and an electric telescopic rod d (413) that are arranged on the side frame b (401) and used to traction the overall movement of the cutting structure.

8. A plasma cutting device for a fine blanking die female die according to claim 7, characterized in that, The lifting assembly (42) includes a cylinder a (421) and a slide rail b (422) that are arranged on the side frame b (401) and used to adjust the height of the cutting structure in a large range; The transverse movement assembly (43) includes a cross beam (431), a motor c (432), rollers (433), and a guide rail (434) that are arranged on the sliding frame (402) and used to longitudinally adjust the position of the cutting structure; The adjustment assembly (44) includes an adjustment plate (441), a cylinder b (442), a motor d (443), and a lead screw (444) that are arranged on the cross beam (431) and used to horizontally and finely vertically adjust the position of the cutting structure; 9. The plasma cutting device for the fine blanking die concave die according to claim 8, wherein, The cutting assembly (45) includes an equipment plate (451), a mounting seat (452), a turntable (453), a stepping motor (454), a mounting plate (455), a cutting head (456), a cleaning rod (457), a drip nozzle (458), and a conduit (459) that are arranged on the adjustment plate (441) and used to select and switch functions of cutting, cleaning, and antireflection dripping; The camera assembly (46) includes a monitoring seat (461) and a camera (462) that are arranged on the turntable (453) and used to dock with the cutting assembly (45).

10. The cutting method of a plasma cutting device for a fine blanking die concave die according to claims 1-9, characterized in that, It includes the following steps: Step 1, limiting process: Press and position the mold workpiece through the limiting component (33); Step 2, primary front cutting process: Initially cut the front of the mold workpiece through the cutting mechanism (4); Step 3, downward bending process: Slightly bend the front cutting part of the mold workpiece downward through the driving component (31) and the tension component (32); Step 4, secondary front cutting process: Clean, antireflect, and perform secondary cutting on the front of the mold workpiece again through the cutting mechanism (4); Step 5, primary back cutting process: Move the entire cutting structure to the bottom of the mold workpiece through the traction assembly (41) to initially cut the back of the workpiece; Step 6, upward bending process: Slightly bend the mold workpiece upward through the driving component (31) and the tension component (32); Step 7, secondary back cutting process: Clean, antireflect, and cut the back of the mold workpiece again through the cutting mechanism (4); Step 8, cooling process: Exchange heat and cool the cutting part of the workpiece through the cooling component (34) and the heat dissipation component (35).

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