Multifunctional stamping die for automobile part machining

Abstract

The invention discloses a multifunctional stamping die for automobile part machining, and belongs to the field of material machining, the multifunctional stamping die comprises a lower die base, a lower die core is movably connected to the center of the upper end of the lower die base, a female die is arranged in the middle of the upper end of the lower die core, and buffer spring columns are movably connected to the positions, located at the corners of the lower die core, of the upper end of the lower die base; a guide sleeve is movably connected to the corner of the upper end of the lower die base, an upper die base is arranged above the lower die base, an upper die core is fixedly connected to the middle of the lower end of the upper die base, a male die is arranged in the middle of the lower end of the upper die core, and guide columns are fixedly connected to the corner of the lower end of the upper die base. First grooves are formed in the two sides of the outer surface of the upper end of the lower mold core correspondingly, and conveying mechanisms are arranged in the first grooves. Rapid feeding and discharging can be achieved, the stamping efficiency of stamped parts is improved, stamping is stable, the stamped parts are not prone to deviation, die taking is not prone to occurring after stamping is finished, and male die loss is low.

Description

Technical Field

[0001] The invention relates to the field of material processing, and more specifically to a multifunctional stamping die for processing automobile parts. Background Art

[0002] With the vigorous development of the automotive industry, the demand for the production and processing of automotive parts continues to grow, and the requirements for their quality and production efficiency are becoming increasingly stringent. In the manufacturing process of automotive parts, stamping technology is an important and widely used processing method, which is used to stamp raw materials such as metal sheets into accessories of various shapes and sizes through molds, such as body panels, chassis parts, interior parts, etc.; However, the existing stamping dies for automobile parts processing have exposed many problems during actual use, among which the most prominent one is the lack of effective anti-waste jumping function. During the stamping operation, a large amount of waste is usually generated. If this waste is not properly handled and controlled, it is easy to accumulate or jump in the working area of ​​the mold. The accumulation of waste may cause poor mold closing, affect the stamping accuracy and product quality, and may even damage the mold components and reduce the service life of the mold. The jumping of waste may cause safety accidents and cause harm to operators, and it will also affect the continuity and stability of production; The design of traditional stamping dies mainly focuses on achieving the molding function of accessories, and the treatment of waste is often insufficiently considered. Although some dies have taken some measures to guide the discharge of waste, the effect is not ideal and the problem of waste jumping cannot be fundamentally solved. For example, some dies only discharge waste through a simple waste trough, but during high-speed stamping or mass production, waste is easy to accumulate in the trough and overflow; some dies do not have a special anti-jump mechanism, and when the waste is affected by the stamping pressure or its own elastic deformation, it is easy to jump.

[0003] The industry is also actively exploring solutions to the problem of waste jumping. For example, a Chinese patent with patent application number CN201921214653.4 discloses a sheet metal stamping die that prevents waste from jumping. This patent can prevent the waste from jumping during the stamping process to a certain extent through a specific structural design, and has made certain progress in preventing waste from jumping compared to traditional dies. However, after practical application and in-depth research, it was found that the solution proposed by the patent still has some limitations: for example, when the stamping parts are continuously stamped, the loading and unloading materials remain unchanged, which affects the stamping efficiency. At the same time, after stamping, the mold is easy to carry the mold, the punch wears out quickly, and the stamping parts are not easy to fix during stamping and are easy to deviate, affecting the stamping quality. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multifunctional stamping die for automobile parts processing, which can realize rapid loading and unloading of materials, improve the stamping efficiency of stamping parts, ensure stable stamping and prevent stamping parts from deviating, and is not easy to carry the die after stamping, and has low punch loss.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A multifunctional stamping die for processing automobile parts, comprising a lower die seat, a lower die core is movably connected at the center of the upper end of the lower die seat, a concave die is provided at the middle of the upper end of the lower die core, a buffer spring column is movably connected at the upper end of the lower die seat at the corner of the lower die core, a guide sleeve is movably connected at the upper corner of the lower die seat, an upper die seat is provided above the lower die seat, an upper die core is fixedly connected at the middle of the lower end of the upper die seat, a convex die is provided at the middle of the lower end of the upper die core, and a guide column is fixedly connected at the corner of the lower end of the upper die seat; A first groove is provided on both sides of the outer surface of the upper end of the lower die core, and a conveying mechanism is provided inside the first groove. The conveying mechanism is used to unload the dry plate after stamping. The conveying mechanism includes a conveyor belt movably connected to the inside of the first groove, and the front and rear ends of the conveyor belt extend to the front and rear of the lower die base respectively, and the front and rear ends of the conveyor belt are movably connected to drive rollers.

[0007] Furthermore, the conveyor belt is a hollow structure, the first spring is in the shape of a cone that is wide at the top and narrow at the bottom, and the upper end diameter of the first spring is larger than the hollow width of the conveyor belt, the lower end diameter of the first spring is smaller than the hollow width of the conveyor belt, and the lower end of the first spring is fixedly connected to the first groove.

[0008] Furthermore, the transmission roller is rotatably connected to the external bracket, one of the transmission rollers is driven by the output shaft of an external motor, a first spring is provided inside the conveyor belt, a top column is fixedly connected to the inside of the first groove, the first spring is sleeved on the outside of the top column, the length of the top column is the same as the depth of the first groove, and suction cups are provided on the outer surfaces of the upper and lower ends of the conveyor belt.

[0009] Furthermore, second grooves are provided on both sides of the outer surface of the lower end of the upper mold core, and a top plate is movably connected inside the second groove, and a second spring is movably connected between the top plate and the second groove.

[0010] Furthermore, an oil injection mechanism is provided inside the top plate, and the oil injection mechanism includes a cavity opened inside the top plate, an oil inlet mechanism is provided in the middle of the upper end of the top plate, a piston plate is movably connected inside the cavity, and a vacuum state is maintained between the piston plate and the inner surfaces of the front and rear ends of the top plate, and an oil injection port is provided in the middle of the lower end of the top plate on one side close to the upper mold core.

[0011] Furthermore, an oil injection mechanism is provided at the center of the inner upper end of the second groove, and the oil injection mechanism includes an oil storage chamber and an oil injection pipe. The oil injection pipe runs through the interior of the oil storage chamber and extends into the interior of the second groove. The oil injection pipe runs through the two piston plates through the oil inlet mechanism.

[0012] Furthermore, the upper end of the conveyor belt is higher than the first groove, and the sum of the elastic forces of the plurality of first springs is greater than the gravity of the stamping part.

[0013] Furthermore, the oil injection port is crescent-shaped, and is opened at an upward inclination of 30° between the oil injection port and the top plate.

[0014] Furthermore, the oil inlet mechanism includes an oil inlet and an oil sealing plate, a third groove and a third spring. The oil sealing plate is movably installed at the lower end of the oil inlet. The inner upper end of the cavity is located at the front and rear ends of the oil inlet and is provided with a third groove. The interior of the third groove is movably connected with a third spring, and the third spring is fixedly connected to the oil sealing plate.

[0015] Furthermore, a fourth spring is movably connected between the upper outer surface of the oil filling pipe and the oil storage chamber, and oil guide holes are opened at the lower ends of the outer surfaces around the oil filling pipe, and the oil guide holes are wrapped by the oil outlet of the oil storage chamber.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This solution uses a transmission roller to drive the conveyor belt to load and unload the stamped parts. The first spring is used to push the conveyor belt to reset and complete the automatic demolding, eliminating the demolding steps and mechanisms of the transmission stamping die. At the same time, the conveyor belt is used to transport the stamped parts away from the die to complete the unloading, transfer, stamping and unloading of the stamped parts. The process is closely connected, which improves the stamping efficiency of the stamped parts.

[0017] (2) In this solution, the suction cup expands and adsorbs on the surface of the stamping part, thereby fixing the conveyor belt and the stamping part. Since the conveyor belt is positioned in the first groove after being pressed down, the stamping part positioned on the conveyor belt is also relatively fixed, so that when the die and the punch stamp the stamping part, the stamping part will not move.

[0018] (3) This scheme uses a top plate in conjunction with a conveyor belt to first fix the stamping part on the conveyor belt. As the upper die seat moves downward, the top plate is squeezed into the second groove. At this time, the second spring is compressed and deformed. When the stamping is completed, the upper die seat moves upward, and the punch follows the upper die seat to move upward. At this time, the second spring returns to its original position and pushes the top plate to support the stamping part, preventing the stamping part from moving upward with the punch, thereby effectively preventing the occurrence of the die-carrying phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the upper die base of the present invention; Figure 3 This is a view of the lower mold core and the transmission mechanism of the present invention being combined; Figure 4 It is a schematic diagram of the structure of the transmission mechanism of the present invention; Figure 5 A view showing the combination of the conveyor belt and the suction cup of the present invention; Figure 6 This is a view of the upper mold core and the top plate of the present invention being combined; Figure 7 It is a schematic diagram of the oil injection pipe structure of the present invention; Figure 8 It is a structural schematic diagram of the oil inlet mechanism of the present invention; Fig. 9 This is a view of the top plate and the oil injection port combined with each other according to the present invention.

[0020] Description of the numbers in the figure: 1. Lower die base; 2. Lower die core; 21. First groove; 22. Conveying mechanism; 221. Driving roller; 222. Conveying belt; 223. First spring; 224. Ejector column; 225. Suction cup; 3. Concave die; 4. Buffer spring column; 5. Guide sleeve; 6. Upper die base; 7. Upper die core; 71. Oil filling mechanism; 711. Oil storage chamber; 712. Oil filling pipe; 713. Fourth spring; 714. Oil guide hole; 8. Punch; 81. Ejector plate; 82. Second groove; 83. Second spring; 84. Oil injection mechanism; 841. Receiving chamber; 842. Oil inlet mechanism; 8421. Oil inlet port; 8422. Oil seal plate; 8423. Third groove; 8424. Third spring; 843. Piston plate; 844. Oil injection port; 9. Guide column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 5A multifunctional stamping die for processing automobile parts, comprising a lower die base 1, a lower die core 2 is movably connected at the center of the upper end of the lower die base 1, a concave die 3 is provided at the middle of the upper end of the lower die core 2, a buffer spring column 4 is movably connected at the upper end of the lower die base 1 at the corner of the lower die core 2, a guide sleeve 5 is movably connected at the upper corner of the lower die base 1, an upper die base 6 is provided above the lower die base 1, and an upper die core 7 is fixedly connected at the middle of the lower end of the upper die base 6, a convex die 8 is provided at the middle of the lower end of the upper die core 7, and a guide column 9 is fixedly connected at the corner of the lower end of the upper die base 6; The upper outer surface of the lower die core 2 is provided with a first groove 21 on both sides, and a conveying mechanism 22 is provided inside the first groove 21. The conveying mechanism 22 is used to unload the dry plate after stamping. The conveying mechanism 22 includes a conveyor belt 222 movably connected to the inside of the first groove 21, and the front and rear ends of the conveyor belt 222 extend to the front and rear of the lower die base 1 respectively. The front and rear ends of the conveyor belt 222 are movably connected to a transmission roller 221, and the transmission roller 221 is rotatably connected to an external bracket. One of the transmission rollers 221 is driven by the output shaft of an external motor, and a first spring 223 is provided inside the conveyor belt 222; The conveyor belt 222 is a hollow structure, the first spring 223 is in the shape of a truncated cone with a width at the top and a narrowness at the bottom, and the upper end diameter of the first spring 223 is larger than the hollow width of the conveyor belt 222, the lower end diameter of the first spring 223 is smaller than the hollow width of the conveyor belt 222, and the lower end of the first spring 223 is fixedly connected to the first groove 21, the interior of the first groove 21 is fixedly connected with a top column 224, the first spring 223 is sleeved on the outside of the top column 224, the length of the top column 224 is the same as the depth of the first groove 21, suction cups 225 are provided on the outer surfaces of the upper and lower ends of the conveyor belt 222, the upper end of the conveyor belt 222 is higher than the first groove 21, and the sum of the elastic forces of multiple first springs 223 is greater than the gravity of the stamping part.

[0023] By adopting the above technical solution, the stamping parts are placed in batches on the conveying mechanism 22. After the power is turned on, the transmission roller 221 is driven by the external motor to drive the conveyor belt 222 to run, so that the stamping parts are conveyed to the top of the die 3. Since the conveying mechanism 22 is higher than the first groove 21, the stamping parts will not contact the die 3 during the conveying process, thereby avoiding the displacement of the stamping parts caused by the conflict between the die 3 and the stamping parts. After that, the upper die seat 6 moves downward and closes with the lower die seat 1. The guide column 9 on the upper die seat 6 penetrates into the guide sleeve 5 on the lower die seat 1. The guide column 9 and the guide sleeve 5 are used to The upper die base 6 and the lower die base 1 are limited to avoid displacement of the upper die base 6 and the lower die base 1 during stamping. As the upper die base 6 moves downward, the punch 8 at the lower end of the upper die core 7 contacts the upper outer surface of the stamping part and pushes the stamping part to move downward. At this time, the conveyor belt 222 is pressed into the first groove 21, so that the lower outer surface of the stamping part contacts the die 3, and the first spring 223 is compressed and deformed. As the upper die base 6 continues to move downward, the punch 8 cooperates with the die 3 to stamp the stamping part, thereby completing the stamping operation of the stamping part. After the stamping is completed, the upper die base 6 moves upward, and the punch 8 no longer stamps The stamping piece applies a downward force, and the first spring 223 is reset to push the conveyor belt 222 out of the first groove 21. At this time, the conveyor belt 222 lifts the stamping piece to the top of the first groove 21, thereby completing the automatic demolding, eliminating the demolding steps and mechanisms of the transmission stamping die. At the same time, the conveyor belt 222 is used to transport the stamped stamping piece away from the die to complete the unloading of the stamping piece, reprinting, stamping, and unloading; the process is closely connected, which improves the stamping efficiency of the stamping piece. Since the conveyor belt 222 lifts the stamping piece and is located above the die 3, when the upper die seat 6 moves down, the punch 8 and the die 3 are clamped in the clamping position. Before stamping the stamping part, it first contacts the stamping part. At this time, the stamping part and the conveyor belt 222 are squeezed against each other. As the upper die seat 6 continues to move downward, when the conveyor belt 222 reaches parallel to the first groove 21, the conveyor belt 222 contacts the top column 224. At this time, the suction cup 225 expands and adsorbs on the surface of the stamping part, thereby fixing the conveyor belt 222 and the stamping part. Since the conveyor belt 222 is positioned in the first groove 21 after being pressed down, the stamping part positioned on the conveyor belt 222 is also relatively fixed, so that when the die 3 and the punch 8 stamp the stamping part, the stamping part will not be displaced.

[0024] like Figure 2 and Figure 6 As shown, the outer surface of the lower end of the upper mold core 7 is provided with second grooves 82 on both sides, and the interior of the second groove 82 is movably connected to a top plate 81 , and a second spring 83 is movably connected between the top plate 81 and the second groove 82 .

[0025] By adopting the above technical solution, when the upper die seat 6 moves downward, the top plate 81 at the lower end of the upper die core 7 first contacts the stamping part, and the top plate 81 is used in conjunction with the conveyor belt 222 to first fix the stamping part on the conveyor belt 222. As the upper die seat 6 moves downward, the top plate 81 is squeezed into the second groove 82. At this time, the second spring 83 is compressed and deformed. When the stamping is completed, the upper die seat 6 moves upward, and the punch 8 moves upward with the upper die seat 6. At this time, the second spring 83 resets and pushes the top plate 81 to support the stamping part, preventing the stamping part from moving up with the punch 8, thereby effectively preventing the occurrence of the mold-carrying phenomenon.

[0026] like Figure 6 and Fig. 9 As shown, an oil injection mechanism 84 is provided inside the top plate 81, and the oil injection mechanism 84 includes a cavity 841 opened inside the top plate 81, and an oil inlet mechanism 842 is provided in the middle of the upper end of the top plate 81. A piston plate 843 is movably connected inside the cavity 841, and a vacuum state is formed between the piston plate 843 and the inner surfaces of the front and rear ends of the top plate 81. An oil injection port 844 is provided in the middle of the lower end of the top plate 81 near the upper mold core 7; An oil injection mechanism 71 is provided at the center of the inner upper end of the second groove 82, and the oil injection mechanism 71 includes an oil storage chamber 711 and an oil injection pipe 712. The oil injection pipe 712 runs through the interior of the oil storage chamber 711, and the oil injection pipe 712 extends into the interior of the second groove 82. The oil injection pipe 712 runs through between the two piston plates 843 through the oil inlet mechanism 842. The oil injection port 844 is crescent-shaped, and is opened at an upward inclination of 30° between the oil injection port 844 and the top plate 81.

[0027] By adopting the above technical solution, as the upper die seat 6 moves downward, the top plate 81 is squeezed into the second groove 82. At this time, the second spring 83 is compressed and deformed, and the oil injection port 844 is blocked by the second groove 82. The oil injection pipe 712 in the oil injection mechanism 71 passes through the oil inlet mechanism 842 to between the two piston plates 843 in the oil injection mechanism 84. At this time, the lubricating oil in the oil storage chamber 711 enters between the two piston plates 843 through the oil injection pipe 712, and the two piston plates 843 are pushed to move forward and rearward respectively by the lubricating oil. When the stamping is completed, the upper die seat 6 moves upward, and the punch 8 moves upward with the upper die seat 6. At this time, the second spring 83 resets and pushes the top plate 81 out of the first groove 82. The second groove 82, at this time, the oil injection mechanism 71 is separated from the oil injection mechanism 84, the oil injection port 844 is exposed, and the piston plate 843 is reset and moved closer to each other, so that the lubricating oil between the two piston plates 843 is squeezed out of the inside of the top plate 81 through the oil injection port 844 and sprayed on the surface of the punch 8, thereby completing the lubrication of the punch 8, reducing the friction between the punch 8 and the stamping part, and improving the service life of the punch 8. By setting the crescent-shaped oil injection port 844, the oil injection area is expanded, so that the punch 8 can be sprayed with lubricating oil in all directions, and the oil injection port 844 is tilted upward by 30°, so that the lubricating oil is sprayed on the surface of the punch 8, effectively preventing the lubricating oil from being sprayed on the stamping part.

[0028] like Figure 7 and Figure 8 As shown, the oil inlet mechanism 842 includes an oil inlet 8421, an oil sealing plate 8422, a third groove 8423 and a third spring 8424. The oil sealing plate 8422 is movably mounted at the lower end of the oil inlet 8421. The inner upper end of the cavity 841 is located at both ends of the oil inlet 8421 and the third groove 8423 is provided. The third spring 8424 is movably connected inside the third groove 8423, and the third spring 8424 is fixedly connected to the oil sealing plate 8422. A fourth spring 713 is movably connected between the upper outer surface of the oil filling pipe 712 and the oil storage chamber 711 , and oil guide holes 714 are opened at the lower ends of the outer surfaces of the four sides of the oil filling pipe 712 , and the oil guide holes 714 are wrapped by the oil outlet of the oil storage chamber 711 .

[0029] By adopting the above technical solution, when the oil filling mechanism 71 passes through the oil inlet mechanism 842 and penetrates into the oil injection mechanism 84, the oil filling pipe 712 presses against the oil sealing plate 8422 in the oil inlet mechanism 842 and pushes downward, so that the oil sealing plate 8422 is separated from the oil inlet port 8421. At this time, the third spring 8424 is extended, the oil inlet port 8421 is opened, and the oil filling pipe 712 is simultaneously moved upward by the opposite force given by the oil sealing plate 8422. At this time, the fourth spring 713 shrinks and deforms, and the oil guide hole 714 on the surface of the oil filling pipe 712 extends out of the oil outlet of the oil storage chamber 711, and the lubricating oil enters the oil filling pipe through the oil guide hole 714. The oil inside 712 smoothly enters the oil injection mechanism 84 through the oil inlet 8421. When the stamping is completed, the top plate 81 extends out of the second groove 82. At this time, the oil injection mechanism 71 is separated from the oil injection mechanism 84. At this time, the third spring 8424 is reset to lift the oil sealing plate 8422 upward, and the oil inlet 8421 is closed by the oil sealing plate 8422. The fourth spring 713 is reset to push the oil injection pipe 712 downward, so that the oil guide hole 714 on the upper surface of the oil injection pipe 712 shrinks to the oil outlet of the oil storage chamber 711 and is wrapped by it, thereby realizing the closure of the oil injection mechanism 71 and the oil inlet mechanism 842 to prevent oil leakage.

[0030] Instructions for use: First, place the stamping parts in batches on the conveying mechanism 22. After the power is turned on, the transmission roller 221 is driven by an external motor to drive the conveyor belt 222 to run, so as to convey the stamping parts to the top of the die 3. Since the conveying mechanism 22 is higher than the first groove 21, the stamping parts will not contact the die 3 during the conveying process, thereby avoiding the displacement of the stamping parts caused by the conflict between the die 3 and the stamping parts. Then, the upper die seat 6 moves downward and closes with the lower die seat 1. The guide column 9 on the upper die seat 6 penetrates into the guide sleeve 5 on the lower die seat 1. The guide column 9 and the guide sleeve 5 are used to limit the position between the upper die seat 6 and the lower die seat 1 to avoid the displacement of the upper die seat 6 and the lower die seat 1 during stamping. As the upper die seat 6 moves downward, the punch 8 at the lower end of the upper die core 7 contacts the outer surface of the upper end of the stamping part and pushes the stamping part to move downward. At this time, the conveyor belt 222 is pressed into the first groove 21, so that the outer surface of the lower end of the stamping part contacts the die 3, and the first spring 223 is compressed and deformed. As the upper die seat 6 continues to move downward, the punch 8 cooperates with the die 3 to stamp the stamping part, thereby completing the stamping operation of the stamping part. After the stamping is completed, the upper die seat 6 moves up, and the punch 8 no longer applies a downward force to the stamping part. At this time, the first spring 223 is reset to push the conveyor belt 222 out of the first groove 21. At this time, the conveyor belt 222 lifts the stamping part to the top of the first groove 21, thereby completing the automatic demolding, eliminating the demolding steps and mechanisms of the transmission stamping die, and at the same time using the conveyor belt 222 to transport the stamped stamping part away from the die to complete the unloading of the stamping part, reprinting, stamping, and unloading; the process is closely connected, which improves the stamping efficiency of the stamping parts; Since the conveyor belt 222 holds the stamping part above the die 3, when the upper die holder 6 moves downward, the punch 8 and the die 3 first contact the stamping part before clamping the stamping part. At this time, the stamping part and the conveyor belt 222 squeeze each other. As the upper die holder 6 continues to move downward, when the conveyor belt 222 reaches parallel to the first groove 21, the conveyor belt 222 contacts the top column 224. At this time, the suction cup 225 expands and adsorbs on the surface of the stamping part, thereby fixing the conveyor belt 222 and the stamping part. Since the conveyor belt 222 is positioned in the first groove 21 after being pressed down, the stamping part positioned on the conveyor belt 222 is also relatively fixed. The punch 8 is fixed so that when the die 3 and the punch 8 punch the stamping part, the stamping part will not be displaced. When the upper die seat 6 moves downward, the top plate 81 at the lower end of the upper die core 7 first contacts the stamping part. The top plate 81 cooperates with the conveyor belt 222 to first fix the stamping part on the conveyor belt 222. As the upper die seat 6 moves downward, the top plate 81 is squeezed into the second groove 82. At this time, the second spring 83 is compressed and deformed. When the stamping is completed, the upper die seat 6 moves upward, and the punch 8 moves upward with the upper die seat 6. At this time, the second spring 83 is reset to push the top plate 81 to support the stamping part, preventing the stamping part from moving upward with the punch 8, thereby effectively preventing the occurrence of the mold banding phenomenon. As the upper die seat 6 moves downward, the top plate 81 is squeezed into the second groove 82. At this time, the second spring 83 is compressed and deformed, and the oil injection port 844 is blocked by the second groove 82. The oil injection pipe 712 in the oil injection mechanism 71 passes through the oil inlet mechanism 842 to between the two piston plates 843 in the oil injection mechanism 84. At this time, the lubricating oil in the oil storage chamber 711 enters between the two piston plates 843 through the oil injection pipe 712, and the two piston plates 843 are pushed to move to the front and rear ends respectively by the lubricating oil. When the stamping is completed, the upper die seat 6 moves upward, and the punch 8 moves upward with the upper die seat 6. At this time, the second spring 83 resets and pushes the top plate 81 out of the second groove 82 At this time, the oil injection mechanism 71 is separated from the oil injection mechanism 84, the oil injection port 844 is exposed, and the piston plates 843 are reset and moved closer to each other, so that the lubricating oil between the two piston plates 843 is squeezed out of the interior of the top plate 81 through the oil injection port 844 and sprayed on the surface of the punch 8, thereby completing the lubrication of the punch 8, reducing the friction between the punch 8 and the stamping part, and improving the service life of the punch 8. By setting the crescent-shaped oil injection port 844, the oil injection area is enlarged, so that the punch 8 can be sprayed with lubricating oil in all directions, and the oil injection port 844 is tilted upward by 30°, so that the lubricating oil is sprayed on the surface of the punch 8, effectively preventing the lubricating oil from being sprayed on the stamping part; When the oil filling mechanism 71 passes through the oil inlet mechanism 842 and penetrates into the oil injection mechanism 84, the oil filling pipe 712 presses against the oil sealing plate 8422 in the oil inlet mechanism 842 and pushes downward, so that the oil sealing plate 8422 is separated from the oil inlet port 8421. At this time, the third spring 8424 is extended, the oil inlet port 8421 is opened, and the oil filling pipe 712 is simultaneously moved upward by the opposite force given by the oil sealing plate 8422. At this time, the fourth spring 713 shrinks and deforms, and the oil guide hole 714 on the surface of the oil filling pipe 712 extends out of the oil outlet of the oil storage chamber 711, and the lubricating oil enters the interior of the oil filling pipe 712 through the oil guide hole 714 And it smoothly enters the oil injection mechanism 84 through the oil inlet 8421. When the stamping is completed, the top plate 81 extends out of the second groove 82. At this time, the oil injection mechanism 71 is separated from the oil injection mechanism 84. At this time, the third spring 8424 is reset to lift the oil sealing plate 8422 upward, and the oil inlet 8421 is closed by the oil sealing plate 8422. The fourth spring 713 is reset to push the oil injection pipe 712 downward, so that the oil guide hole 714 on the upper surface of the oil injection pipe 712 shrinks to the oil outlet of the oil storage chamber 711 and is wrapped by it, thereby realizing the closure of the oil injection mechanism 71 and the oil inlet mechanism 842 to prevent oil leakage.

[0031] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional stamping die for processing automobile parts, comprising a lower die base (1), characterized in that: The center of the upper end of the lower die base (1) is movably connected to a lower die core (2), a concave die (3) is provided in the middle of the upper end of the lower die core (2), the upper end of the lower die base (1) is located at the corner of the lower die core (2) and is movably connected to a buffer spring column (4), the upper corner of the lower die base (1) is movably connected to a guide sleeve (5), an upper die base (6) is provided above the lower die base (1), and the middle of the lower end of the upper die base (6) is fixedly connected to an upper die core (7), a convex die (8) is provided in the middle of the lower end of the upper die core (7), and the lower corner of the upper die base (6) is fixedly connected to a guide column (9); First grooves (21) are provided on both sides of the outer surface of the upper end of the lower die core (2), and a conveying mechanism (22) is provided inside the first groove (21). The conveying mechanism (22) is used to unload the dry plate after stamping. The conveying mechanism (22) comprises a conveyor belt (222) movably connected to the inside of the first groove (21), and the front and rear ends of the conveyor belt (222) extend to the front and rear of the lower die base (1) respectively, and the front and rear ends of the conveyor belt (222) are movably connected to drive rollers (221).

2. The multifunctional stamping die for automobile parts processing according to claim 1, characterized in that: The transmission roller (221) is rotatably connected to the external bracket, one of the transmission rollers (221) is driven by the output shaft of an external motor, a first spring (223) is provided inside the conveyor belt (222), the conveyor belt (222) is a hollow structure, the first spring (223) is in the shape of a truncated cone with a width at the top and a narrowness at the bottom, and the diameter of the upper end of the first spring (223) is greater than the hollow width of the conveyor belt (222), the diameter of the lower end of the first spring (223) is less than the hollow width of the conveyor belt (222), and the lower end of the first spring (223) is fixedly connected to the first groove (21).

3. The multifunctional stamping die for automobile parts processing according to claim 1, characterized in that: A top column (224) is fixedly connected to the interior of the first groove (21), the first spring (223) is sleeved on the exterior of the top column (224), the length of the top column (224) is the same as the depth of the first groove (21), and suction cups (225) are provided on the outer surfaces of the upper and lower ends of the conveyor belt (222).

4. The multifunctional stamping die for automobile parts processing according to claim 1, characterized in that: Second grooves (82) are provided on both sides of the outer surface of the lower end of the upper mold core (7), and a top plate (81) is movably connected inside the second groove (82), and a second spring (83) is movably connected between the top plate (81) and the second groove (82).

5. The multifunctional stamping die for automobile parts processing according to claim 4, characterized in that: An oil injection mechanism (84) is provided inside the top plate (81), and the oil injection mechanism (84) comprises a chamber (841) opened inside the top plate (81); an oil inlet mechanism (842) is provided in the middle of the upper end of the top plate (81); a piston plate (843) is movably connected inside the chamber (841), and a vacuum state is formed between the piston plate (843) and the inner surfaces of the front and rear ends of the top plate (81); and an oil injection port (844) is provided in the middle of the lower end of one side of the top plate (81) close to the upper mold core (7).

6. The multifunctional stamping die for automobile parts processing according to claim 5, characterized in that: An oil injection mechanism (71) is provided at the center of the upper end of the second groove (82). The oil injection mechanism (71) comprises an oil storage chamber (711) and an oil injection pipe (712). The oil injection pipe (712) runs through the interior of the oil storage chamber (711) and extends into the interior of the second groove (82). The oil injection pipe (712) runs through between the two piston plates (843) via the oil inlet mechanism (842).

7. The multifunctional stamping die for automobile parts processing according to claim 1, characterized in that: The upper end of the conveyor belt (222) is higher than the first groove (21), and the sum of the elastic forces of the plurality of first springs (223) is greater than the weight of the stamping part.

8. The multifunctional stamping die for automobile parts processing according to claim 5, characterized in that: The oil injection port (844) is crescent-shaped, and is opened at an angle of 30° upwards between the oil injection port (844) and the top plate (81).

9. The multifunctional stamping die for automobile parts processing according to claim 6, characterized in that: The oil inlet mechanism (842) comprises an oil inlet (8421), an oil sealing plate (8422), a third groove (8423) and a third spring (8424); the oil sealing plate (8422) is movably mounted at the lower end of the oil inlet (8421); the inner upper end of the cavity (841) is located at both the front and rear ends of the oil inlet (8421) and is provided with a third groove (8423); the interior of the third groove (8423) is movably connected to a third spring (8424), and the third spring (8424) and the oil sealing plate (8422) are fixedly connected.

10. The multifunctional stamping die for automobile parts processing according to claim 6, characterized in that: A fourth spring (713) is movably connected between the upper outer surface of the oil injection pipe (712) and the oil storage chamber (711), and oil guide holes (714) are provided at the lower ends of the outer surfaces of the four sides of the oil injection pipe (712), and the oil guide holes (714) are surrounded by the oil outlet of the oil storage chamber (711).

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