Demolding structure of metal stamping die

Abstract

The invention belongs to the technical field of metal stamping dies, and particularly relates to a metal stamping die demolding structure which comprises a stamping base, a stamping frame fixed to the surface of the stamping base and a stamping hydraulic cylinder fixed to the surface of the stamping frame. A stamping base is arranged over the stamping die, a lubricating top die assembly is arranged above the stamping base, the lubricating top die assembly is arranged, lubricating oil can be smeared and sprayed to the surface of the stamping base and the interior of the stamping die, and therefore the friction force between the surface of the stamping base and the interior of the stamping die in the subsequent stamping process is reduced; the phenomenon that metal raw materials are damaged due to friction caused by forced stamping without lubrication is avoided, demolding after the metal raw materials are stamped is also facilitated through the lubrication effect, a metal blank formed through stamping can be pushed to be loosened, the rapid demolding effect is achieved, manual demolding is not needed, the labor intensity of manual demolding is reduced, and the demolding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal stamping dies, and in particular relates to a demoulding structure of a metal stamping die. Background Art

[0002] Metal stamping is a forming method in which a press machine applies external force to metal sheets, strips and other materials through a metal die to cause plastic deformation or separation, thereby obtaining stamping parts of the required shape and size. At the same time, when the stamping is completed, a demoulding structure is also required to perform a certain degree of demoulding on the stamped material.

[0003] Although the existing demoulding structure in life meets the needs of users to a certain extent, there are still certain defects in the use process. The specific problems are as follows: when demoulding the metal blank, the existing demoulding structure mostly demoulds it by manual knocking, which is time-consuming and labor-intensive, and the mold and the metal raw material are not lubricated before stamping, which not only easily causes the metal raw material to be worn and damaged due to friction resistance, but also makes it difficult to separate the mold and the metal raw material after the stamping is completed. At this time, manual demoulding is more difficult, and forced separation will cause the metal blank to deform and affect its use, and the demoulding efficiency is low;

[0004] In order to solve the above problems, the present application proposes a demoulding structure of a metal stamping die. Summary of the invention

[0005] The present invention provides a demoulding structure for a metal stamping die, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a demoulding structure of a metal stamping die, comprising a stamping base, a stamping frame fixed on the surface of the stamping base, and a stamping liquid cylinder fixed on the surface of the stamping frame, a stamping die is fixed inside the stamping frame, and a stamping seat is arranged directly above the stamping die;

[0007] A lubricating top die assembly is arranged above the stamping base, and the lubricating top die assembly includes a translation motor, a translation screw, a translation slide, an electric telescopic rod, an oiling seat, a displacement sensor, a top die plate, a rotating shaft and a push cam for applying lubricating oil to the surface of the stamping seat and the stamping die before stamping and automatically pushing the stamped metal parts;

[0008] A translation motor is screwed onto one side of the surface of the stamping base, a translation lead screw is fixed to the output end of the translation motor, a translation slide is threadedly connected to the surface of the translation lead screw, an oiling seat is provided on one side of the translation slide, an electric telescopic rod is fixed between the oiling seat and the translation slide, a displacement sensor is provided above the stamping seat, a top template is slidably connected to the inside of the stamping die, a rotating shaft is rotatably connected to the inside of the stamping die, and a push cam is fixed to the surface of the rotating shaft.

[0009] As a preferred demoulding structure of a metal stamping die of the present invention, the lubricating top die assembly further includes a lubricating oil tank, a delivery pump, an upper spray seat, a lower spray head, a smear brush, a push plate, a lifting slide rod, a spring 1 and a pressure sensor 1;

[0010] A lubricating oil tank is fixed inside the oiling seat, a delivery pump is screwed onto the surface of the lubricating oil tank, an upper spray seat is fixed to the upper surface of the oiling seat, a lower spray head is fixed to the lower surface of the oiling seat, and both the upper spray seat and the lower spray head are connected to the delivery pump via an oil pipe, a smear brush is fixed to the upper surface of the oiling seat, a push plate is provided on one side of the oiling seat, pressure sensors 1 are symmetrically fixed on both sides of the top of the push plate, a lifting slide rod is fixed to the surface of the pressure sensor 1, a spring 1 is wound around the surface of the lifting slide rod, and two ends of the spring 1 are respectively fixed between the pressure sensor 1 and the oiling seat.

[0011] As a preferred demolding structure of a metal stamping die of the present invention, the surface of the push cam abuts against a fitting roller, a push-pull rod is welded at the end of the fitting roller, a positioning seat is fixed inside the stamping die, and the push-pull rod is slidably connected inside the positioning seat, a blocking ring is welded on the surface of the push-pull rod, a spring 2 is wound on the surface of the push-pull rod, a hinge rod is hinged at the end of the push-pull rod, a hinge shaft is hinged in the middle of the hinge rod, and the other end of the hinge shaft is hinged to the lower surface of the top template.

[0012] As a preferred demoulding structure of a metal stamping die of the present invention, the displacement sensor is electrically connected to the stamping hydraulic cylinder, the translation motor and the electric telescopic rod one respectively, and the pressure sensor one is electrically connected to the delivery pump.

[0013] As a preferred demoulding structure of a metal stamping die of the present invention, a positioning stamping assembly is arranged inside the stamping frame, and the positioning stamping assembly includes a buffer pressing plate, a cutting knife, a cutting groove, a positioning column, a push-pull plate, an electric push rod, a transmission rack, a transmission gear and a transmission shaft for positioning and preventing the metal raw material to be stamped and cushioning the stamping process of the stamping seat;

[0014] A buffer pressure plate is fixed to the output end of the stamping hydraulic cylinder, and cutting knives are symmetrically fixed on both sides of the lower surface of the buffer pressure plate. A cutting groove matched with the cutting knife is opened on the surface of the stamping die. Positioning columns are slidably connected at the four corners inside the stamping die, and a push-pull plate is fixed between the two groups of the positioning columns, and an electric push rod is fixed between the push-pull plate and the stamping die, a transmission rack is welded on one side of the push-pull plate, and a transmission gear is meshed and connected on the surface of the transmission rack, and a transmission shaft is fixed inside the transmission gear.

[0015] As a preferred demoulding structure of a metal stamping die of the present invention, the positioning stamping assembly further includes a buffer slide bar, a spring three, and a limit column;

[0016] The limiting columns are symmetrically fixed on both sides of the interior of the stamping frame, and the buffer pressure plate is slidably connected to the surface of the limiting columns. A spring three is fixed between the buffer pressure plate and the stamping seat. A buffer sliding rod is fixed on the surface of the stamping seat, and the buffer sliding rod is slidably connected to the buffer sliding groove opened inside the buffer pressure plate.

[0017] As a preferred demolding structure of a metal stamping die of the present invention, a chain sprocket component 1 is fixed at the end of the transmission shaft, the end of the chain sprocket component 1 is connected to the end of one group of rotating shafts, and a chain sprocket component 2 is connected between the two groups of rotating shafts, the displacement sensor is fixed on the surface of the buffer pressure plate, and the displacement sensor is electrically connected to the electric push rod.

[0018] As a preferred demoulding structure of a metal stamping die of the present invention, an adsorption mold removal component is arranged between the translation slide and the stamping frame, and the adsorption mold removal component includes an electric telescopic rod 2, a push seat, an electric telescopic rod 3, an adsorption seat, an electric telescopic rod 4, a moving plate, a vacuum pump, an exhaust pipe and a fixed seat for adsorbing, grabbing and transporting the stamped metal parts after pushing;

[0019] A pushing seat is arranged between the translation slide and the punching frame, and an electric telescopic rod 2 is fixed between the pushing seat and the translation slide, an electric telescopic rod 3 is fixed to the surface of the pushing seat, an adsorption seat is fixed to the output end of the electric telescopic rod 3, a movable plate is arranged inside the adsorption seat, and an electric telescopic rod 4 is fixed between the movable plate and the adsorption seat, a vacuum pump is fixed to the surface of the movable plate, an exhaust pipe is fixed to the output end of the vacuum pump, and a fixed seat is fixed below the movable plate.

[0020] As a preferred demoulding structure of a metal stamping die of the present invention, the adsorption mold removal assembly further includes a storage cylinder, a spring four, a pressure sensor two, an extrusion rod and a pressing ring;

[0021] A storage cylinder is fixed to the lower surface of the fixing seat, a pressure sensor 2 is slidably connected inside the storage cylinder, a spring 4 is fixed between the pressure sensor 2 and the storage cylinder, an extrusion rod is fixed to the other end of the pressure sensor 2, and a pressing ring is welded to the other end of the extrusion rod.

[0022] As a preferred demolding structure of a metal stamping mold of the present invention, the adsorption seat and the push seat are slidably connected by a limiting rail 1, the adsorption seat and the movable plate are slidably connected by a limiting rail 2, a fixed suction cup is fixed at the end of the exhaust pipe, and the fixed suction cup is fixed to the surface of the fixed seat, the pressure sensor 2 is electrically connected to the vacuum pump, and the displacement sensor is electrically connected to the electric telescopic rod 2, the electric telescopic rod 3 and the electric telescopic rod 4 respectively.

[0023] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0024] 1. A lubricating top die assembly is provided. Through the use of a translation motor, a translation screw, a translation slide, an electric telescopic rod, an oiling seat, a displacement sensor, a top die plate, a rotating shaft and a push cam, lubricating oil can be applied and sprayed on the surface of the stamping seat and the inside of the stamping die, thereby reducing the friction between the metal raw material and the subsequent stamping process, avoiding the stamping seat and the stamping die and the surface of the metal raw material being forcibly stamped without lubrication, resulting in friction damage to the metal raw material due to excessive resistance, and the lubrication effect is also conducive to the demoulding of the metal raw material after stamping, making the demoulding process easier, and can push the stamped metal blank to loosen and eject it from the inside of the stamping die, achieving the effect of automatic and rapid demoulding, without the need for manual demoulding, reducing the labor of manual demoulding, and improving demoulding efficiency;

[0025] By using a lubricating oil tank, a delivery pump, an upper spray seat, a lower spray head, a smear brush, a push plate, a lifting slide rod, a spring and a pressure sensor, the stamping seat, the stamping die and the stamped metal blank after stamping can be cooled down. While assisting the metal blank in shaping, the metal blank can also be quickly dissipated and cooled down. There is no need to wait for the metal blank to cool down before removing it, which reduces waiting time and greatly improves the metal stamping efficiency. Through the setting of the push plate, the cut edges of the metal raw materials can be pushed, and the scraps on the surface of the stamping die can be cleaned, and the scraps can be pushed down and dropped into a collection box for collection, so as to achieve automatic cleaning of the scraps without manual cleaning, thereby improving the stamping processing efficiency.

[0026] 2. A positioning stamping assembly is provided. Through the use of a buffer plate, a cutting knife, a cutting groove, a positioning column, a push-pull plate, an electric push rod, a transmission rack, a transmission gear and a transmission shaft, the stamping position of the metal raw material can be positioned to avoid the stamping seat and the stamping die from slipping when stamping the metal raw material, and to prevent the metal raw material from moving and deviating during the stamping process and affecting the stamping work;

[0027] By using the buffer slide rod, spring three and limit column, the punching force generated by the punching seat during punching can be buffered, avoiding the punching seat from directly pressing the metal raw material, resulting in excessive impact force and causing deformation and damage of the metal raw material.

[0028] 3. It is equipped with an adsorption mold removal component. Through the use of the electric telescopic rod 2, the push seat, the electric telescopic rod 3, the adsorption seat, the electric telescopic rod 4, the moving plate, the vacuum pump, the exhaust pipe and the fixed seat, the metal blank after stamping can be adsorbed and fixed, and then the metal blank can be removed from the inside of the stamping die. The metal blank after adsorption and transportation can be released and dropped on the surface of the conveyor for transportation, so that the stamped metal blank can be quickly dropped, and the stamped metal blank can be automatically sent to the designated position, which is convenient for subsequent processing;

[0029] By using a storage tube, spring four, pressure sensor two, an extrusion rod and a pressing ring, the vacuum pump can be started by utilizing the electrical signal generated when the pressure sensor two is pressurized, and used as a basis for judging whether the fixed suction cup is tightly attached to the surface of the metal blank. The air between the fixed suction cup and the metal blank is extracted by the vacuum pump to form a negative pressure state between the two, thereby allowing the metal blank to be adsorbed and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the lubricating top die assembly and the positioning punch assembly in the present invention;

[0033] Figure 3 It is a structural schematic diagram of the lubricating top mold component and the adsorption mold removal component in the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the oiling seat in the present invention;

[0035] Figure 5 It is a cross-sectional view of the stamping die and the top mold plate in the present invention;

[0036] Figure 6 It is a partial cross-sectional view of the stamping die and the top mold plate in the present invention;

[0037] Figure 7 For the present invention Figure 6 A magnified image of point A;

[0038] Figure 8 It is a structural schematic diagram of the positioning stamping assembly in the present invention;

[0039] Fig. 9 is a cross-sectional view of the stamping die in the present invention;

[0040] Fig.10 It is a structural schematic diagram of the adsorption and mold removal component in the present invention;

[0041] Fig.11 It is a cross-sectional view of the adsorption and mold removal component of the present invention;

[0042] Fig.12 For the present invention Fig.11 Enlarged view of point B.

[0043] In the figure: 1. stamping base; 2. stamping frame; 3. lubrication top die assembly; 4. positioning stamping assembly; 5. adsorption die assembly; 6. stamping hydraulic cylinder; 7. stamping seat; 31. translation motor; 32. translation screw rod; 33. translation slide seat; 34. electric telescopic rod one; 35. oiling seat; 36. displacement sensor; 37. top die plate; 38. rotating shaft; 39. push cam; 41. buffer pressure plate; 42. cutting knife; 43. cutting groove; 44. positioning column; 45. push-pull plate; 46. electric push rod; 47. transmission rack; 48. transmission gear; 49. transmission shaft; 51. electric telescopic rod two; 52. push seat; 53. electric telescopic rod three; 54. adsorption seat; 55. electric telescopic rod four; 56. moving plate; 57. vacuum pump; 58. exhaust pipe; 59 , fixed seat; 8, stamping die; 351, lubricating oil tank; 352, delivery pump; 353, upper spray seat; 354, lower nozzle; 355, smear brush; 356, push plate; 357, lifting slide bar; 358, spring one; 359, pressure sensor one; 391, fitting roller; 392, push-pull rod; 393, positioning seat; 394, blocking ring; 395, spring two; 396, hinge rod; 397, hinge shaft; 411, buffer slide bar; 412, spring three; 413, limit column; 491, chain sprocket part one; 492, chain sprocket part two; 541, limit rail one; 561, limit rail two; 581, fixed suction cup; 591, storage tube; 592, spring four; 593, pressure sensor two; 594, extrusion rod; 595, pressing ring. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example: Figure 1-Figure 12 As shown, the present invention provides a technical solution, a demoulding structure of a metal stamping die, comprising a stamping base 1, a stamping frame 2 fixed on the surface of the stamping base 1, and a stamping liquid cylinder 6 fixed on the surface of the stamping frame 2, a stamping die 8 is fixed inside the stamping frame 2, and a stamping seat 7 is arranged directly above the stamping die 8;

[0046] A lubricating top die assembly 3 is arranged above the stamping base 1, and the lubricating top die assembly 3 includes a translation motor 31, a translation screw 32, a translation slide 33, an electric telescopic rod 1 34, an oiling seat 35, a lubricating oil tank 351, a delivery pump 352, an upper spray seat 353, a lower spray head 354, a smear brush 355, a push plate 356, a lifting slide 357, a spring 1 358, a pressure sensor 1 359, a displacement sensor 36, a top die plate 37, a rotating shaft 38, a push cam 39, a fitting roller 391, a push-pull rod 392, a positioning seat 393, a blocking ring 394, a spring 2 395, a hinged rod 396 and a hinged shaft 397;

[0047] A translation motor 31 is screwed on one side of the surface of the stamping base 1, a translation screw 32 is fixed on the output end of the translation motor 31, and the translation screw 32 is rotatably connected to the surface of the stamping base 1, a translation slide 33 is threadedly connected to the surface of the stamping base 1, and the translation slide 33 is slidably connected to the surface of the stamping base 1, and an oiling seat 35 is provided on the side of the translation slide 33 close to the stamping frame 2, a lubricating oil tank 351 is fixed inside the oiling seat 35, a delivery pump 352 is screwed on the surface of the lubricating oil tank 351, an upper spray seat 353 is fixed on the upper surface of the oiling seat 35, and a A plurality of groups of lower nozzles 354 are arranged at equal intervals, and the upper nozzle seat 353 and the lower nozzles 354 are connected to the delivery pump 352 through oil pipes. A smear brush 355 is fixed on the upper surface of the oiling seat 35, and a push plate 356 is provided on one side of the oiling seat 35. Pressure sensors 359 are symmetrically fixed on both sides of the top of the push plate 356. A lifting slide bar 357 is fixed on the surface of the pressure sensor 359, and the lifting slide bar 357 is slidably connected to one side of the oiling seat 35. A spring 358 is wound on the surface of the lifting slide bar 357, and the two ends of the spring 358 are respectively fixed between the pressure sensor 359 and the oiling seat 35. Two sets of electric telescopic rods 34 are fixed between the translation slide 33 and the oiling seat 35, a displacement sensor 36 is arranged above the stamping seat 7, the inside of the stamping die 8 is slidably connected to the top template 37, the inside of the stamping die 8 is rotatably connected to two sets of rotating shafts 38, and the surface of the rotating shaft 38 is fixed with multiple sets of equidistantly arranged push cams 39, the surface of the push cam 39 is abutted with a fitting roller 391, and a push-pull rod 392 is welded at the end of the fitting roller 391, a positioning seat 393 is fixed inside the stamping die 8, and the push-pull rod 392 is slidably connected to the inside of the positioning seat 393, and the push-pull rod 392 A blocking ring 394 is welded on the surface, a spring 395 is wound on the surface of the push-pull rod 392, and the two ends of the spring 395 are respectively fixed between the positioning seat 393 and the blocking ring 394, a hinged rod 396 is hinged at the end of the push-pull rod 392, a hinged shaft 397 is hinged in the middle of the hinged rod 396, and the hinged shaft 397 is fixed inside the stamping die 8, and the other end of the hinged shaft 397 is hinged to the lower surface of the top template 37, and the displacement sensor 36 is electrically connected to the stamping hydraulic cylinder 6, the translation motor 31 and the electric telescopic rod 34, and the pressure sensor 359 is electrically connected to the conveying pump 352.

[0048] The interior of the punching frame 2 is provided with a positioning punching assembly 4, which includes a buffer pressing plate 41, a buffer sliding rod 411, a spring three 412, a limit column 413, a cutting knife 42, a cutting groove 43, a positioning column 44, a push-pull plate 45, an electric push rod 46, a transmission rack 47, a transmission gear 48, a transmission shaft 49, a chain sprocket component 1 491 and a chain sprocket component 2 492;

[0049] A buffer pressure plate 41 is fixed to the output end of the stamping cylinder 6, and limiting columns 413 are symmetrically fixed on both sides of the interior of the stamping frame 2, and the buffer pressure plate 41 is slidably connected to the surface of the limiting columns 413, and a plurality of groups of springs 412 arranged equidistantly are fixed between the buffer pressure plate 41 and the stamping seat 7, and a buffer slide bar 411 is fixed to the surface of the stamping seat 7, and the buffer slide bar 411 is slidably connected to the buffer slide groove opened inside the buffer pressure plate 41, and cutting knives 42 are symmetrically fixed to both sides of the lower surface of the buffer pressure plate 41, and a cutting groove 43 adapted to the cutting knife 42 is opened on the surface of the stamping die 8, and positioning columns 44 are slidably connected at the four corners of the interior of the stamping die 8, and a push-pull plate 45 is fixed between the two groups of positioning columns 44, and the push-pull plate 45 is slidably connected in the push-pull groove opened inside the stamping die 8, and an electric push rod 46 is fixed between the push-pull plate 45 and the stamping die 8, a transmission rack 47 is welded on one side of the push-pull plate 45, and a transmission gear 48 is meshingly connected on the surface of the transmission rack 47, a transmission shaft 49 is fixed inside the transmission gear 48, and the transmission shaft 49 is rotatably connected to the inside of the stamping die 8, a chain sprocket part 1 491 is fixed at the end of the transmission shaft 49, the other end of the chain sprocket part 1 491 is connected to the end of one group of rotating shafts 38, and a chain sprocket part 2 492 is connected between the two groups of rotating shafts 38, the displacement sensor 36 is fixed on the surface of the buffer pressure plate 41, and the displacement sensor 36 and the electric push rod 46 are electrically connected.

[0050] An adsorption mold removal component 5 is arranged between the translation slide 33 and the stamping frame 2, and the adsorption mold removal component 5 includes an electric telescopic rod 2 51, a push seat 52, an electric telescopic rod 3 53, an adsorption seat 54, a limit rail 1 541, an electric telescopic rod 4 55, a moving plate 56, a limit rail 2 561, a vacuum pump 57, an exhaust pipe 58, a fixed suction cup 581, a fixed seat 59, a storage cylinder 591, a spring 4 592, a pressure sensor 2 593, an extrusion rod 594 and a pressing ring 595;

[0051] A push seat 52 is arranged between the translation slide 33 and the punching frame 2, and an electric telescopic rod 2 51 is fixed between the push seat 52 and the translation slide 33, an electric telescopic rod 3 53 is fixed to the surface of the push seat 52, an adsorption seat 54 is fixed to the output end of the electric telescopic rod 3 53, and the adsorption seat 54 and the push seat 52 are slidably connected through a limit rail 1 541, a limit rail 2 561 is fixed to the surface of the adsorption seat 54, a moving plate 56 is fixed to the surface of the limit rail 2 561, and an electric telescopic rod 4 55 is fixed between the moving plate 56 and the adsorption seat 54, a vacuum pump 57 is fixed to the surface of the moving plate 56, an exhaust pipe 58 is fixed to the output end of the vacuum pump 57, and the exhaust pipe 58 is fixed at the end There is a fixed suction cup 581, and a fixed seat 59 is fixed between the fixed suction cup 581 and the movable plate 56, a storage tube 591 is fixed to the lower surface of the fixed seat 59, and a plurality of storage grooves are provided inside the storage tube 591, a pressure sensor 2 593 is slidably connected in the storage groove, and a spring 4 592 is fixed between the pressure sensor 2 593 and the storage tube 591, an extrusion rod 594 is fixed to the other end of the pressure sensor 2 593, and a pressing ring 595 is welded to the other end of the extrusion rod 594, the pressure sensor 2 593 is electrically connected to the vacuum pump 57, and the displacement sensor 36 is electrically connected to the electric telescopic rod 2 51, the electric telescopic rod 3 53 and the electric telescopic rod 4 55 respectively.

[0052] When the metal raw material needs to be stamped, the stamping cylinder 6 is first started, and the stamping cylinder 6 drives the buffer pressure plate 41 to drive the displacement sensor 36 to move downward inside the stamping frame 2. When the displacement sensor 36 moves to the set height position, it sends a working signal to the controller (not shown in the figure), and the controller starts the translation motor 31 and the electric telescopic rod 34. The translation motor 31 drives the translation screw 32 to operate above the stamping base 1, which can drive the translation slide 33 to translate on the surface of the stamping base 1, thereby driving the electric telescopic rod 34 and the oiling rod 34 to move horizontally. The seat 35 moves synchronously. When the oiling seat 35 moves to the rear of the stamping seat 7 and the stamping die 8, the translation motor 31 is automatically turned off, and then the oiling seat 35 is pushed to move between the stamping seat 7 and the stamping die 8 through the electric telescopic rod 1 34. The movement of the oiling seat 35 can drive the push plate 356 to move synchronously. When the push plate 356 contacts the surface of the stamping die 8, the arc chamfer set at the bottom of the push plate 356 can fit on the surface of the stamping die 8, and move upward with the advancement of the oiling seat 35, thereby driving the pressure sensor 1 359 to move upward synchronously;

[0053] As the pressure sensor 359 moves upward, the spring 358 can be squeezed to deform and generate elastic force, thereby driving the lifting slide rod 357 to slide on one side of the oiling seat 35. The pressure data received by the pressure sensor 359 will send a working signal to the controller, and the controller will start the delivery pump 352. Through the operation of the delivery pump 352, the lubricating oil inside the lubricating oil tank 351 can be extracted and delivered to the upper spray seat 353 and the lower nozzle 354 through the oil pipe. At the same time, with the continued pushing of the oiling seat 35 by the electric telescopic rod 34, the lubricating oil can be sprayed on the surface of the stamping seat 7 through the spray of the upper spray seat 353, and the lubricating oil can be sprayed on the inside of the stamping die 8 through the spray of the lower nozzle 354. As the oiling seat 35 moves, the smear brush 355 will brush and evenly spread the lubricating oil sprayed on the surface of the stamping seat 7, and then the oiling seat 35 and the electric The movable telescopic rod 34 will automatically reset, and the delivery pump 352 will also be temporarily closed. The stamping seat 7 and the stamping die 8 after being coated and sprayed with lubricating oil can reduce the friction between the metal raw material and the subsequent stamping process, and avoid the stamping seat 7 and the stamping die 8 and the surface of the metal raw material being forcibly stamped without lubrication, resulting in the phenomenon of friction damage to the metal raw material due to excessive resistance. The lubrication effect is also beneficial to the demolding of the metal raw material after stamping, making the demolding process easier. At the same time, the temperature of the stamping seat 7 and the stamping die 8 will gradually increase due to long-term stamping processing. By evaporating the sprayed lubricating oil, the stamping seat 7 and the stamping die 8 and the stamped metal blank after stamping can be cooled down. While assisting the metal blank in shaping, the metal blank can also be quickly dissipated and cooled down. There is no need to wait for the metal blank to cool down before removing it, which reduces waiting time and greatly improves the metal stamping efficiency.

[0054] After the stamping seat 7 and the stamping die 8 are coated with and sprayed with lubricating oil, the electric push rod 46 is started, and the electric push rod 46 pushes the push-pull plate 45 to move upward in the stamping groove opened inside the stamping die 8, thereby driving the positioning column 44 and the transmission rack 47 fixed on its upper surface and side surface to move upward synchronously. By moving the positioning column 44 upward, it can extend itself from the inside of the stamping die 8, and by moving the transmission rack 47 upward, it can drive the transmission gear 48 to rotate inside the stamping die 8, thereby driving the transmission The shaft 49 rotates synchronously. With the rotation of the transmission shaft 49, under the cooperation of the chain sprocket part 1 491, one set of rotating shafts 38 can be driven to rotate inside the stamping die 8, and then under the cooperation of the chain sprocket part 2 492, another set of rotating shafts 38 can be driven to rotate synchronously inside the stamping die 8. With the rotation of the rotating shaft 38, the push cam 39 can be driven to rotate inside the stamping die 8. Through the rotation of the push cam 39, the fitting roller 391 can be pushed to drive the push-pull rod 392 to the positioning position. The inner part of the seat 393 slides, thereby driving the blocking ring 394 to move synchronously, and the movement of the blocking ring 394 can cause the spring 395 to deform and generate elastic force, and cooperate with the rotation of the push cam 39, which can drive the push-pull rod 392 to slide back and forth inside the positioning seat 393, and then under the action of the hinge shaft 397, it can drive the hinge rod 396 to flip inside the stamping die 8, that is, drive the top template 37 to slide up and down inside the stamping die 8, and when the electric push rod 46 is extended, the top die The plate 37 slides down inside the stamping die 8. Conversely, when the electric push rod 46 contracts, the top plate 37 moves up inside the stamping die 8. When the positioning column 44 is completely extended from the inside of the stamping die 8, the metal raw material to be stamped is aligned with the positioning column 44 and placed on the surface of the stamping die 8. The stamping position of the metal raw material can be positioned to avoid slipping when the stamping seat 7 and the stamping die 8 are stamping the metal raw material, and to prevent the metal raw material from moving and deviating during the stamping process and affecting the stamping work.

[0055] Then, the stamping cylinder 6 is started again, and the buffer pressure plate 41 is driven by the stamping cylinder 6 to slide on the surface of the limit column 413, thereby driving the stamping seat 7 to approach one side of the stamping die 8 again. When the stamping seat 7 contacts the metal raw material, as the buffer pressure plate 41 continues to be pressed down, the spring three 412 can be squeezed to deform and generate elastic force, thereby buffering the stamping pressure generated by the stamping seat 7 during stamping, thereby preventing the stamping seat 7 from directly pressing the metal raw material, resulting in excessive impact force causing deformation and damage to the metal raw material. During this period, the downward movement of the buffer pressure plate 41 can drive the cutting knife 42 to move downward synchronously, and the cutting knife 42 is used to stamp and cut the corners of the metal raw material, so that it forms a stamped blank under the cooperation of the stamping seat 7 and the stamping die 8, and the stamping process is completed. When the stamping process is completed, After the stamping process, the stamping seat 7 is driven to reset by starting the stamping cylinder 6. When the stamping seat 7 completes the reset, under the action of the displacement sensor 36, it can send a working signal to the controller again, and the controller starts the electric push rod 46 to shrink inside the stamping die 8, which can drive the positioning column 44 to shrink into the inside of the stamping die 8, thereby releasing the positioning of the corners of the metal raw material, and through the contraction of the electric push rod 46, it can drive the hinge rod 396 to flip reversely inside the stamping die 8, which can drive the top template 37 to move up inside the stamping die 8, and then the upward movement of the top template 37 can push the stamped metal blank to loosen and push it out of the inside of the stamping die 8, thereby achieving the effect of automatic and rapid demolding, without the need for manual demolding, reducing the labor intensity of manual demolding, and improving demolding efficiency.

[0056] After the stamping seat 7 completes the reset, the translation motor 31 is started to drive the translation slide 33 to translate on the surface of the stamping base 1. The movement of the translation slide 33 can drive the electric telescopic rod 2 51 and the adsorption seat 54 to move synchronously. When the adsorption seat 54 moves to the rear of the stamping die 8, the controller connects the circuits of the electric telescopic rod 2 51, the electric telescopic rod 3 53 and the electric telescopic rod 4 55. By starting the electric telescopic rod 2 51, the push seat 52 can be pushed to drive the adsorption seat 54 to approach the surface of the stamping die 8. When the adsorption seat 54 moves to the top of the stamping die 8, the operation of the electric telescopic rod 3 53 can drive the adsorption seat 54 to move on one side of the push seat 52 with the cooperation of the limit rail 1 541. The fixing seat 59 moves downward, thereby driving the movable plate 56 and the fixed seat 59 to move downward synchronously. As the fixing seat 59 moves downward, when the pressing ring 595 contacts the surface of the metal blank, the fixing seat 59 continues to move downward. Under the action of the extrusion rod 594, the pressure sensor 2 593 can be driven to slide inside the fixed suction cup 581, thereby squeezing the spring 4 592 to deform and generate elastic force. At this time, the pressure sensor 2 593 is compressed to generate an electrical signal. When the pressure on the pressure sensor 2 593 reaches the set threshold, it means that the fixed suction cup 581 is tightly attached to the surface of the metal blank, and the electrical signal generated by the pressure sensor 2 593 sends a working signal to the controller, which starts the vacuum pump 57, and the vacuum pump 57 excites the fixed suction cup through the exhaust pipe 58. The air between 581 and the metal blank is extracted to form a negative pressure state between the two, so that the metal blank can be adsorbed and fixed, and then the electric telescopic rod three 53 is controlled to contract, so that the adsorption seat 54 and the metal blank adsorbed and fixed thereunder can be driven to separate from the interior of the stamping die 8, and then the metal blank is removed from the interior of the stamping die 8, and then the electric telescopic rod four 55 is controlled to extend inside the adsorption seat 54, and then the movable plate 56 is pushed to slide inside the adsorption seat 54 under the action of the limiting rail two 561, so that the fixed seat 59 and the metal blank adsorbed and fixed thereunder can be driven to move toward the direction of the conveyor (not shown in the figure). When the metal blank is transferred to the top of the conveyor, the fixed adsorption can be released by turning off the vacuum pump 57. The negative pressure state between the plate 581 and the metal blank can loosen the metal blank and make it fall on the surface of the conveyor for transportation, so that the stamped metal blank can be quickly dropped, and the stamped metal blank can be automatically sent to the specified position for subsequent processing. Then the controller controls the electric telescopic rod 2 51, the electric telescopic rod 3 53 and the electric telescopic rod 4 55 to drive the adsorption seat 54 and the fixed seat 59 to complete the reset, and then the stamping cylinder 6 is started again to drive the stamping seat 7 and the displacement sensor 36 to move. When the displacement sensor 36 moves to the set position again, the oiling seat 35 and the push plate 356 will move closer to one side of the stamping die 8 again. At this time, through the sliding of the push plate 356 on the surface of the stamping die 8,The scraps on the surface of the stamping die 8 can be cleaned by pushing the cut metal raw material corners, and the scraps can be pushed down and dropped into a collection box (not shown in the figure) for collection, so as to automatically clean the scraps without manual cleaning, thereby improving the stamping processing efficiency. In this way, the continuous automatic stamping and demoulding operation of the metal raw material can be completed.

[0057] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A demoulding structure for a metal stamping die, comprising a stamping base (1), a stamping frame (2) fixed on the surface of the stamping base (1), and a stamping fluid cylinder (6) fixed on the surface of the stamping frame (2); a stamping die (8) is fixed inside the stamping frame (2), and a stamping seat (7) is arranged directly above the stamping die (8); Features: A lubricating top die assembly (3) is arranged above the punching base (1), and the lubricating top die assembly (3) comprises a translation motor (31) for applying lubricating oil to the surface of the punching base (7) and the punching die (8) before punching and automatically pushing the punched metal part, a translation screw (32), a translation slide (33), an electric telescopic rod (34), an oiling seat (35), a displacement sensor (36), a top die plate (37), a rotating shaft (38) and a push cam (39); A translation motor (31) is screw-mounted on one side of the surface of the punching base (1); a translation screw (32) is fixed to the output end of the translation motor (31); a translation slide seat (33) is threadedly connected to the surface of the translation screw (32); an oiling seat (35) is provided on one side of the translation slide seat (33); an electric telescopic rod (34) is fixed between the oiling seat (35) and the translation slide seat (33); a displacement sensor (36) is provided above the punching base (7); a top mold plate (37) is slidably connected to the inside of the punching die (8); a rotating shaft (38) is rotatably connected to the inside of the punching die (8); a push cam (39) is fixed to the surface of the rotating shaft (38).

2. The demoulding structure of the metal stamping die according to claim 1, characterized in that: The lubricating top mold assembly (3) also includes a lubricating oil tank (351), a delivery pump (352), an upper spray seat (353), a lower spray head (354), a smear brush (355), a push plate (356), a lifting slide rod (357), a spring (358) and a pressure sensor (359); A lubricating oil tank (351) is fixed inside the oiling seat (35), a delivery pump (352) is screwed onto the surface of the lubricating oil tank (351), an upper spray seat (353) is fixed on the upper surface of the oiling seat (35), a lower spray head (354) is fixed on the lower surface of the oiling seat (35), and both the upper spray seat (353) and the lower spray head (354) are connected to the delivery pump (352) via an oil pipe. A smear brush (355), a push plate (356) is provided on one side of the oiling seat (35), pressure sensors (359) are symmetrically fixed on both sides of the top of the push plate (356), a lifting slide rod (357) is fixed on the surface of the pressure sensor (359), a spring (358) is wound around the surface of the lifting slide rod (357), and the two ends of the spring (358) are respectively fixed between the pressure sensor (359) and the oiling seat (35).

3. The demoulding structure of the metal stamping die according to claim 2, characterized in that: The surface of the push cam (39) is in contact with a fitting roller (391), a push-pull rod (392) is welded at the end of the fitting roller (391), a positioning seat (393) is fixed inside the stamping die (8), and the push-pull rod (392) is slidably connected inside the positioning seat (393), a blocking ring (394) is welded on the surface of the push-pull rod (392), a spring 2 (395) is wound around the surface of the push-pull rod (392), a hinge rod (396) is hinged at the end of the push-pull rod (392), a hinge shaft (397) is hinged in the middle of the hinge rod (396), and the other end of the hinge shaft (397) is hinged to the lower surface of the top template (37).

4. The demoulding structure of the metal stamping die according to claim 3, characterized in that: The displacement sensor (36) is electrically connected to the punching hydraulic cylinder (6), the translation motor (31) and the electric telescopic rod (34) respectively, and the pressure sensor (359) is electrically connected to the delivery pump (352).

5. The demoulding structure of the metal stamping die according to claim 4, characterized in that: A positioning punching assembly (4) is arranged inside the punching frame (2), and the positioning punching assembly (4) comprises a buffering pressing plate (41) for positioning and preventing the metal raw material to be punched from deflecting and for cushioning the punching process of the punching seat (7), a cutting knife (42), a cutting groove (43), a positioning column (44), a push-pull plate (45), an electric push rod (46), a transmission rack (47), a transmission gear (48) and a transmission shaft (49); A buffer pressure plate (41) is fixed to the output end of the punching hydraulic cylinder (6), and cutting knives (42) are symmetrically fixed on both sides of the lower surface of the buffer pressure plate (41). A cutting groove (43) matching the cutting knives (42) is provided on the surface of the punching die (8). Positioning columns (44) are slidably connected at the four corners inside the punching die (8), and a push-pull plate (45) is fixed between two groups of the positioning columns (44), and an electric push rod (46) is fixed between the push-pull plate (45) and the punching die (8). A transmission rack (47) is welded to one side of the push-pull plate (45), and a transmission gear (48) is meshingly connected to the surface of the transmission rack (47), and a transmission shaft (49) is fixed inside the transmission gear (48).

6. The demoulding structure of the metal stamping die according to claim 5, characterized in that: The positioning punching assembly (4) further comprises a buffer sliding rod (411), a spring three (412), and a limiting column (413); Limiting columns (413) are symmetrically fixed on both sides of the interior of the punching frame (2), and the buffer pressure plate (41) is slidably connected to the surface of the limiting columns (413). A spring three (412) is fixed between the buffer pressure plate (41) and the punching seat (7). A buffer sliding rod (411) is fixed on the surface of the punching seat (7), and the buffer sliding rod (411) is slidably connected to a buffer sliding groove opened inside the buffer pressure plate (41).

7. The demoulding structure of the metal stamping die according to claim 6, characterized in that: A chain sprocket component 1 (491) is fixed at the end of the transmission shaft (49), and the end of the chain sprocket component 1 (491) is connected to the end of one group of rotating shafts (38), and a chain sprocket component 2 (492) is connected between the two groups of rotating shafts (38). The displacement sensor (36) is fixed on the surface of the buffer pressure plate (41), and the displacement sensor (36) is electrically connected to the electric push rod (46).

8. The demoulding structure of the metal stamping die according to claim 7, characterized in that: An adsorption mold removal assembly (5) is arranged between the translation slide (33) and the stamping frame (2), and the adsorption mold removal assembly (5) comprises an electric telescopic rod 2 (51) for adsorbing, grabbing and transporting the stamped metal parts after pushing, a push seat (52), an electric telescopic rod 3 (53), an adsorption seat (54), an electric telescopic rod 4 (55), a movable plate (56), a vacuum pump (57), an exhaust pipe (58) and a fixed seat (59); A push seat (52) is arranged between the translation slide (33) and the punching frame (2), and an electric telescopic rod 2 (51) is fixed between the push seat (52) and the translation slide (33), an electric telescopic rod 3 (53) is fixed on the surface of the push seat (52), an adsorption seat (54) is fixed on the output end of the electric telescopic rod 3 (53), a moving plate (56) is arranged inside the adsorption seat (54), and an electric telescopic rod 4 (55) is fixed between the moving plate (56) and the adsorption seat (54), a vacuum pump (57) is fixed on the surface of the moving plate (56), an exhaust pipe (58) is fixed on the output end of the vacuum pump (57), and a fixed seat (59) is fixed below the moving plate (56).

9. The demoulding structure of the metal stamping die according to claim 8, characterized in that: The adsorption mold removal assembly (5) also includes a storage cylinder (591), a spring four (592), a pressure sensor two (593), an extrusion rod (594) and a pressing ring (595); A storage cylinder (591) is fixed to the lower surface of the fixed seat (59), and a pressure sensor 2 (593) is slidably connected inside the storage cylinder (591), and a spring 4 (592) is fixed between the pressure sensor 2 (593) and the storage cylinder (591), and an extrusion rod (594) is fixed to the other end of the pressure sensor 2 (593), and a pressing ring (595) is welded to the other end of the extrusion rod (594).

10. The demoulding structure of the metal stamping die according to claim 9, characterized in that: The adsorption seat (54) and the push seat (52) are slidably connected via a limiting rail 1 (541), and the adsorption seat (54) and the movable plate (56) are slidably connected via a limiting rail 2 (561). A fixed suction cup (581) is fixed at the end of the exhaust pipe (58), and the fixed suction cup (581) is fixed on the surface of the fixed seat (59). The pressure sensor 2 (593) and the vacuum pump (57) are electrically connected, and the displacement sensor (36) is electrically connected to the electric telescopic rod 2 (51), the electric telescopic rod 3 (53) and the electric telescopic rod 4 (55), respectively.

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