Stamping device and stamping machine for automobile part production

Abstract

The application provides a stamping device and a stamping machine for automobile part production, which comprises a stamping base, the upper end of the stamping base is provided with a lower support table, the upper end of the lower support table is provided with a plurality of lower die mounting plates distributed along the length direction thereof, the upper end of each lower die mounting plate is installed with a lower concave die, and the lower die mounting plate is installed with a lower hydraulic cylinder at the bottom in the stamping base; the upper end of the stamping base is provided with an upper stamping frame, a plurality of upper die mounting plates corresponding to the lower die mounting plates are movably arranged in the upper stamping frame, the lower end of each upper die mounting plate is provided with an upper convex die, and an upper hydraulic cylinder is installed between the upper die mounting plate and the top of the upper stamping frame; the upper stamping frame is slidably connected with a connecting slide strip arranged along the length direction thereof at both sides, each connecting slide strip is installed with a plurality of telescopic motors, and the free end of the telescopic shaft of each telescopic motor is provided with an extrusion block. The application can effectively shorten the waiting time of the stamping machine and further improve the overall efficiency of the stamping production line.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plate stamping, and relates to a stamping device and a stamping machine for automobile part production. BACKGROUND

[0002] In the field of automobile manufacturing, the accuracy and production efficiency of parts are key indicators of the performance of the production line. The manufacturing process of automobile parts usually includes various process flows, among which stamping technology occupies a pivotal position. The automobile part stamping machine, as an important equipment for realizing the forming of metal plates, places the metal plate in the mold and applies pressure to deform it into a part of the required shape and size, and is widely used in the manufacturing of vehicle bodies, chassis and other key components.

[0003] Traditionally, the complex shape of automobile parts often needs to go through multiple stamping processes to finally complete. Each stamping process aims to deform the material in a specific direction or degree to gradually approach the final shape required by the design. Since a single stamping process cannot meet the precision requirements of complex shapes, in actual production processes, multiple stamping machines with different functions are usually used to work together, and each stamping machine is responsible for one or several specific forming steps. Although this multi-process stamping method can ensure high quality standards of the final product, it also means that the workpiece needs to be frequently transferred between processes.

[0004] For the transfer of plates between these intermediate processes, in the past, manual operation was mainly relied on, that is, workers manually carry the plates from one stamping machine to the next. This method not only has high labor intensity and low work efficiency, but also has certain safety hazards. In order to improve production efficiency and reduce labor costs, in recent years, automated mechanical arms have been used to replace manual labor to automatically transfer plates. Although automated transfer significantly improves production speed and reduces the possibility of human error, in existing systems, whether it is manual transfer or mechanical arm transfer, the stamping machine will be idle during the transfer of the plate, which undoubtedly limits the overall stamping efficiency. SUMMARY

[0005] The purpose of the present application is to provide a stamping device and a stamping machine for automobile part production, which adopts an integrated plate transfer structure design, can effectively shorten the waiting time of the stamping machine, and further improve the overall efficiency of the stamping production line.

[0006] To solve the above technical problems, the present application provides a stamping device, comprising a stamping base, the upper end of the stamping base is provided with a lower support table, the upper end of the lower support table is provided with a plurality of lower die mounting plates distributed along the length direction thereof, the upper end of each lower die mounting plate is mounted with a lower cavity die, a lower lifting frame is movably arranged in the stamping base, a plurality of lower hydraulic cylinders are mounted between the lower lifting frame and the bottom of the stamping base, the lower end of each lower die mounting plate is downwardly provided with a vertical connecting strip connected with the lower lifting frame, the lower support table is provided with a plurality of lifting sliding holes in sliding connection with the vertical connecting strips one by one.

[0007] An upper stamping frame is arranged above the stamping base, the upper stamping frame is movably arranged with an upper lifting frame, a plurality of upper hydraulic cylinders are mounted between the upper end of the upper lifting frame and the top of the upper stamping frame, the lower end of the upper lifting frame is provided with a plurality of upper die mounting plates corresponding to the lower die mounting plates one by one, the lower end of each upper die mounting plate is provided with an upper punch die matched with the corresponding lower cavity die.

[0008] A connecting slide strip is slidably connected to each side of the upper stamping frame along the length direction thereof, each connecting slide strip is located on the two sides of the middle of the lower cavity die and the upper punch die, the upper stamping frame is mounted with a sliding drive motor for driving the connecting slide strips to slide one by one, each connecting slide strip is inwardly mounted with a plurality of telescopic motors corresponding to the lower cavity dies one by one, and the free end of the telescopic shaft of each telescopic motor is provided with a pressing block.

[0009] By adopting the above technical scheme, when stamping the plate, first, a plate is placed into the lower cavity die of the first process, the lower hydraulic cylinders and the upper hydraulic cylinders are simultaneously elongated, the lower lifting frame and the upper lifting frame are driven to approach each other in the middle, and finally the lower cavity die and the upper punch die are clamped to stamp the plate into the required first step shape. After completing the stamping, the lower hydraulic cylinders and the upper hydraulic cylinders are simultaneously shortened, the lower cavity die and the upper punch die are moved away from each other, the stamped plate is lifted by the top strip, the pressing block is clamped, the telescopic motor is elongated to push the pressing block to clamp the plate, the plate is transferred to the upper side of the lower cavity die of the next process by the sliding of the connecting slide strip, the telescopic motor is shortened, the plate falls into the lower cavity die, and the next stamping process is performed. The stamping and transferring process is repeated until all stamping is completed, and the stamped parts are placed from the tail end of the stamping base by the pressing block.

[0010] The present application is further provided that a sliding top hole is formed through each lower cavity die and the corresponding lower die mounting plate, a plurality of top strips are slidably connected to the sliding top holes one by one on the upper side of the lower support table, and the upper end of each top strip is matched with the bottom shape in the corresponding lower cavity die.

[0011] The application is further provided that each extrusion block is a hollow structure, each extrusion block is provided with a plurality of telescopic holes on the side away from the corresponding telescopic motor, the inside of each extrusion block is connected with a plurality of telescopic limiting shafts corresponding to the telescopic holes, each telescopic limiting shaft comprises a sleeve tube connected with the bottom in the corresponding extrusion block, a limiting inner shaft in sliding connection with the inner wall of the corresponding sleeve tube and extending the corresponding telescopic hole, each limiting inner shaft is provided with a pressure ring in the corresponding extrusion block, and each sleeve tube is provided with a supporting spring between the corresponding pressure ring and the inner wall of the corresponding extrusion block.

[0012] The application is further provided that each extrusion block and the corresponding connecting slide bar are connected with a plurality of telescopic connecting shafts.

[0013] The application is further provided that one end of the stamping base is horizontally outwardly provided with a plate placing table, both sides in the upper stamping frame are provided with slide rails connected with the corresponding connecting slide bars, each slide rail extends above the plate placing table, and the number of telescopic motors on each connecting slide bar is equal to the number of all lower concave dies plus the number of the plate placing table.

[0014] The application is further provided that each sliding drive motor is a linear motor arranged along the length direction of the connecting slide bar, and a plurality of movers connected with the corresponding connecting slide bars are in sliding connection on the magnetic track of each linear motor.

[0015] The application is further provided that each telescopic motor is a voice coil motor.

[0016] The application further discloses a stamping machine for automobile part production, a middle opening is formed in the lower part of each lower die mounting plate corresponding to the lower concave die, a plurality of material leakage openings are formed in the lower part of each lower die mounting plate corresponding to the lower support table, a plurality of material discharge openings are formed through the lower lifting frame, a conveyor is arranged in the stamping base below the lower lifting frame along the length direction of the conveyor, a material collecting groove is arranged at one end of the stamping base below the free end of the conveyor, a plurality of shearing screen holes are formed through the bottom of the material collecting groove downwardly, and a shearing plate is connected to one end of the lower lifting frame above the material collecting groove, a plurality of shearing blocks corresponding to the shearing screen holes are arranged downwardly at the lower end of the shearing plate.

[0017] The upper end of the lower support table at the tail end process is slidably connected with a sliding stamping seat corresponding to the outer periphery of the lower die, each sliding stamping seat slides towards the corresponding lower die, and each sliding stamping seat is detachably connected with a side edge stamping die on the side of the corresponding lower die, the upper end of the lower support table is provided with a connecting seat on both sides of each sliding stamping seat, each connecting seat is provided with a connecting sliding hole facing the corresponding sliding stamping seat, each sliding stamping seat is provided with two connecting sliding shafts outside and slidably connected with the corresponding connecting sliding hole, the free end of each connecting sliding shaft is provided with a limiting cap, and each limiting cap and the corresponding connecting seat are provided with a return spring sleeving the corresponding connecting sliding shaft, and the side of each sliding stamping seat away from the corresponding lower die is provided with a pressure receiving inclined surface outward and downward, and the upper die mounting plate at the tail end process is provided with a plurality of stamping strips corresponding to the sliding stamping seats downward on the outer periphery of the corresponding upper die, and each stamping strip is provided with a pressure applying inclined surface on the side facing the corresponding upper die and matched with the corresponding pressure receiving inclined surface.

[0018] By adopting the above technical scheme, if the lower die has a stamping hole during the stamping process, the lower die and the upper die are matched for stamping, the stamping plate is punched, the excess material falling from the punching hole can gradually fall to the conveyor through the middle opening, the material leakage hole and the discharge opening, the conveyor gradually conveys the excess material to fall into the collecting groove, the smaller excess material directly falls onto the discharge inclined plate through the shearing screen hole, and the larger excess material continues to be left in the collecting groove, the lower hydraulic cylinder drives the lower lifting frame to descend each time when the lower hydraulic cylinder is shortened, the pressure cutting plate is lowered into the collecting groove, the pressure cutting block is inserted into the shearing screen hole, the excess material in the collecting groove is cut, and the broken material falls onto the discharge inclined plate and is discharged outward, so that the finally discharged excess material is smaller, and it is more convenient to collect and transfer.

[0019] When the last stamping process is performed and the side wall of the part needs to be shaped or punched, the lower die and the upper die are engaged, the stamping strip is lowered to contact the sliding stamping seat, the pressure applying inclined surface gradually contacts the pressure receiving inclined surface, the sliding stamping seat is driven to compress the return spring, the side edge stamping die gradually approaches the lower die, the side plate of the part is shaped or punched, and when the lower die and the upper die are away from each other, the stamping strip is raised, the sliding stamping seat is reset outward under the action of the return spring, and the next stamping is prepared.

[0020] The present application further provides that the stamping base is provided with a discharge inclined plate inclined outward and downward below the collecting groove.

[0021] The present application further provides that the collecting groove is provided with a guide plate downward to the inner wall thereof below the free end of the conveyor.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] One, compared with the traditional manual transfer or mechanical arm transfer plate material, the integrated transfer mechanism is adopted, after each stamping is completed, the stamping plate material is pushed up by the top strip, so that it is kept in the middle position without moving up and down, then the extension motor drives the two sides of the extrusion block to clamp the two sides of the stamping plate material, through the reciprocating movement of the connecting slide bar, the stamping plate material is moved to the next process position, the connecting slide bar follows the stamping rhythm to move reciprocally, and finally the stamping plate material is gradually transferred with the process, which can effectively shorten the waiting time of the stamping machine and further improve the overall efficiency of the stamping production line;

[0024] Secondly, when the edge of the stamping plate material is clamped, the edge of the stamping plate material can be clamped between the limiting inner shafts, and when the edge of the stamping plate material contacts the limiting inner shaft, it can be extruded back into the extrusion block, realizing stable connection of the edge of the stamping plate material.

[0025] Thirdly, during the stamping process, if the stamping excess material is generated, the excess material gradually falls onto the conveyor, and the conveyor gradually conveys the excess material into the collecting groove, during each stamping process, the pressure cutting plate can be driven to move up and down reciprocally, when the pressure cutting plate moves down, the pressure cutting block can be inserted into the shearing sieve hole to cut the excess material in the collecting groove, so that the excess material is broken and falls onto the discharge inclined plate and then is discharged outward, so that the finally discharged excess material is smaller broken material, compared with the excess material of different sizes and shapes, the smaller broken material is easier to collect and transfer by using tools.

[0026] Fourthly, in the last stage of the stamping process, if the side wall of the part needs to be shaped or punched, the stamping strip can be driven to move down and contact the sliding stamping seat when the upper punch moves down each time, the sliding stamping seat is pushed to gradually approach the lower concave die, and the side stamping die is used to quickly shape or punch the side plate of the part. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the overall structure schematic diagram of the present application;

[0028] Figure 2 is a partial cross section for showing the internal structure of the stamping base Figure One ;

[0029] Figure 3 is a partial cross section for showing the internal structure of the stamping base Figure Two ;

[0030] Figure 4 is used to show the connection of the process tail end lower die mounting plate and the lower concave die;

[0031] Figure 5 is used to show the internal structure of the upper stamping frame;

[0032] Figure 6 For showing the connection of the connecting slide bar with the sliding drive motor and the extrusion block;

[0033] Figure 7 is a partial sectional view for showing the internal structure of the extrusion block;

[0034] Figure 8 For showing the telescopic hole on the extrusion block.

[0035] Wherein, 1, punch base; 2, plate placing table; 3, lower support table; 4, lower die mounting plate; 5, lower concave die; 6, lower lifting frame; 7, lower hydraulic cylinder; 8, vertical connecting strip; 9, lifting sliding hole; 10, upper punch frame; 11, upper lifting frame; 12, upper hydraulic cylinder; 13, upper die mounting plate; 14, upper convex die; 15, sliding top hole; 16, top strip; 17, connecting slide bar; 18, sliding rail; 19, linear motor; 20, mover; 21, telescopic motor; 22, extrusion block; 23, telescopic connecting shaft; 24, telescopic hole; 25, outer sleeve tube; 26, limiting inner shaft; 27, compression ring; 28, supporting spring; 29, middle opening; 30, material leakage hole; 31, material discharge hole; 32, conveyor; 33, material collecting groove; 34, material guide plate; 35, shearing sieve hole; 36, shearing plate; 37, shearing block; 38, discharge inclined plate; 39, sliding punch seat; 40, side edge punch die; 41, connecting seat; 42, connecting sliding hole; 43, connecting sliding shaft; 44, limiting cap; 45, reset spring; 46, pressure receiving inclined surface; 47, punch strip; 48, pressure applying inclined surface. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more apparent. It should be noted that the drawings are in a very simplified form and all use non-precise proportions, only for the purpose of facilitating, clarifying and assisting the description of the embodiments of the present application. The same or similar reference numerals in the drawings represent the same or similar parts.

[0037] Embodiment, refer to Figures 1-8The utility model provides a stamping device and automobile parts production stamping machine, including stamping base 1, one board placing table 2 is provided with outside one end horizontally of stamping base 1, and the board placing table 2 is used to place the plate material that needs stamping, and the upper end of stamping base 1 is provided with a lower support table 3, and the upper end of lower support table 3 is provided with four lower die mounting plates 4 along the length direction distribution, and the upper end of each lower die mounting plate 4 is installed with a lower concave die 5, and the lower concave die 5 can be replaced according to the shape of automobile parts, and the shape of lower concave die 5 is gradually perfect to the direction away from board placing table 2, and a lower lifting frame 6 is movably arranged in stamping base 1, and the bottom in stamping base 1 is installed with a plurality of lower hydraulic cylinders 7, and the lower end of each lower die mounting plate 4 is provided with two vertical connecting strips 8 connected with lower lifting frame 6, and lower support table 3 is provided with two lifting sliding holes 9 corresponding with vertical connecting strip 8 sliding connection.

[0038] An upper stamping frame 10 is arranged above the stamping base 1, the lower edge of the upper stamping frame 10 is connected with the two sides of the stamping base 1, an upper lifting frame 11 is movably arranged in the upper stamping frame 10, a plurality of upper hydraulic cylinders 12 are installed between the upper end of the upper lifting frame 11 and the top of the upper stamping frame 10, four upper die mounting plates 13 corresponding to the lower die mounting plates 4 are arranged at the lower end of the upper lifting frame 11, two upper hydraulic cylinders 12 are arranged above each upper die mounting plate 13, an upper convex die 14 corresponding to the lower concave die 5 is arranged at the lower end of each upper die mounting plate 13, the shape of the upper convex die 14 is gradually perfect to the direction away from the board placing table 2, so that the lower concave die 5 cooperates with the upper convex die 14, and the plate material is stamped into the required part shape through four stamping processes.

[0039] Two sliding top holes 15 are arranged in each lower concave die 5, and two top strips 16 corresponding to the sliding top holes 15 are arranged on the upper surface of the lower support table 3. The upper end of each top strip 16 is matched with the bottom of the corresponding lower concave die 5, so that when the upper end of the top strip 16 and the bottom of the lower concave die 5 form a complete bottom, the upper convex die 14 and the lower concave die 5 can be matched to stamp the plate. A connecting sliding strip 17 is arranged on each side of the upper stamping frame 10, and a sliding rail 18 corresponding to the connecting sliding strip 17 is arranged on each side of the upper stamping frame 10. Each sliding rail 18 extends above the plate placing table 2, and each connecting sliding strip 17 is located between the lower concave die 5 and the upper convex die 14. A sliding drive motor is arranged in the upper stamping frame 10 to drive the connecting sliding strip 17 to slide. Each sliding drive motor is a linear motor 19 arranged along the length direction of the connecting sliding strip 17. Three movers 20 corresponding to the connecting sliding strip 17 are arranged on the magnetic track of each linear motor 19. The use of the linear motor 19 can realize faster sliding of the connecting sliding strip 17.

[0040] Five telescopic motors 21 corresponding to the lower concave die 5 are arranged in each connecting sliding strip 17. The number of telescopic motors 21 on each connecting sliding strip 17 is equal to the number of all lower concave dies 5 plus the number of plate placing tables 2. In order to improve the telescopic speed of the telescopic motor 21, a voice coil motor is selected. A pressing block 22 is arranged on the free end of the telescopic shaft of each telescopic motor 21. Two telescopic connecting shafts 23 are arranged between each pressing block 22 and the corresponding connecting sliding strip 17. Each pressing block 22 is a hollow structure. A plurality of telescopic holes 24 are arranged on the side of each pressing block 22 away from the corresponding telescopic motor 21. A plurality of telescopic limiting shafts corresponding to the telescopic holes 24 are arranged in each pressing block 22. Each telescopic limiting shaft includes an outer sleeve 25 connected to the bottom of the corresponding pressing block 22, and a limiting inner shaft 26 slidably connected to the inner wall of the corresponding outer sleeve 25 and extending corresponding to the telescopic hole 24. A pressing ring 27 is arranged in the corresponding pressing block 22. An outer sleeve 25 is arranged on each outer sleeve 25 between the corresponding pressing ring 27 and the inner wall of the corresponding pressing block 22. By extending the limiting inner shaft 26, the edges of the stamped plate that are not straight can be clamped between the limiting inner shafts 26. When the edges of the stamped plate contact the limiting inner shafts 26, they can be pushed back into the pressing block 22, realizing stable connection of the edges of the stamped plate.

[0041] A middle opening 29 is formed in each lower die mounting plate 4 below the corresponding lower die 5, a plurality of material leakage openings 30 are formed in the lower support table 3 below each lower die mounting plate 4, and a plurality of lower material leakage openings 31 are formed in the lower lifting frame 6, so that the excess material punched off can gradually fall downward through the middle opening 29, the material leakage openings 30 and the lower material leakage openings 31. A conveyor 32 is arranged below the lower lifting frame 6 in the punching base 1 and extends along the length direction of the punching base 1. The conveyor 32 cannot be a rubber belt conveyor, so as to prevent the excess material from falling on the conveyor 32 and damaging the conveyor 32. A material collecting groove 33 is arranged at one end of the punching base 1 below the free end of the conveyor 32. A material guiding plate 34 is arranged downward at the free end of the conveyor 32, so that the excess material on the conveyor 32 can finally fall into the material collecting groove 33. A plurality of shearing screen holes 35 are formed downward through the bottom of the material collecting groove 33. One end of the lower lifting frame 6 is connected to a shearing plate 36 arranged above the material collecting groove 33. The lower end of the shearing plate 36 is provided with a plurality of shearing blocks 37 corresponding to the shearing screen holes 35. The shearing blocks 37 and the shearing screen holes 35 cooperate to press and cut the relatively large excess material falling into the material collecting groove 33 into smaller excess material. A material outlet inclined plate 38 is arranged below the material collecting groove 33 in the punching base 1 and inclines outward and downward, so that the final small excess material can slide out of the material outlet inclined plate 38.

[0042] The upper end of the lower support table 3 at the tail end process is slidably connected with four sliding stamping seats 39 corresponding to the outer periphery of the lower concave die 5. Each sliding stamping seat 39 slides towards the corresponding lower concave die 5. Each side of the sliding stamping seat 39 towards the corresponding lower concave die 5 is detachably connected with a side stamping die 40. When the side of the part needs to be shaped or punched, the corresponding side stamping die 40 is installed on the sliding stamping seat 39. The upper end of the lower support table 3 is provided with a connecting seat 41 on both sides of each sliding stamping seat 39. Each connecting seat 41 is provided with a connecting sliding hole 42 corresponding to the sliding stamping seat 39. Each sliding stamping seat 39 is provided with two connecting sliding shafts 43 which are slidably connected with the corresponding connecting sliding hole 42. The free end of each connecting sliding shaft 43 is provided with a limiting cap 44. A return spring 45 is arranged between each limiting cap 44 and the corresponding connecting seat 41 to drive the sliding stamping seat 39 away from the lower concave die 5. The side of each sliding stamping seat 39 away from the corresponding lower concave die 5 is provided with a pressure receiving inclined surface 46 which is outward and downward. The upper die mounting plate 13 at the tail end process is provided with four stamping strips 47 corresponding to the sliding stamping seat 39 downward corresponding to the outer periphery of the upper convex die 14. Each stamping strip 47 is provided with a pressure applying inclined surface 48 corresponding to the pressure receiving inclined surface 46. When the pressure applying inclined surface 48 gradually contacts the pressure receiving inclined surface 46, the sliding stamping seat 39 is compressed to gradually approach the lower concave die 5.

[0043] Working principle: when stamping automobile parts, the plate is first cut into the required shape and gradually placed on the plate placing table 2. During each stamping process, the sliding drive motor drives the connecting slide 17 to slide back and forth once. When the extrusion block 22 at the belt driving end moves to the placing table position, the telescopic motor 21 is extended to push the extrusion block 22 close to the plate, so that the edge of the plate is inserted between the limiting inner shafts 26. If the plate contacts the end of the limiting inner shaft 26, the limiting inner shaft 26 is pushed into the extrusion block 22, so that the limiting inner shaft 26 clamps the edge of the plate, and then moves to the position of the lower concave die 5 of the first process with the sliding of the connecting slide 17. The telescopic motor 21 is shortened, so that the plate is pulled out from between the limiting inner shafts 26 and falls off. Due to the shape of the lower concave die 5, the edge of the plate is limited, and finally gradually reaches the most fitted position in the lower concave die 5.

[0044] The lower hydraulic cylinder 7 and the upper hydraulic cylinder 12 are simultaneously elongated to drive the lower lifting frame 6 and the upper lifting frame 11 to move towards each other, and finally drive the lower die 5 and the upper punch 14 to be engaged, so that the plate is stamped into the required first step shape. After one stamping, the lower hydraulic cylinder 7 and the upper hydraulic cylinder 12 are simultaneously shortened to move the lower die 5 and the upper punch 14 away from each other. The stamped plate is lifted by the top strip 16 for the extrusion block 22 to clamp. At this time, the extension motor 21 is elongated to push the extrusion block 22 to move close to the plate, so that the edge of the plate is inserted between the limiting inner shafts 26. Then, the plate is transferred to the upper side of the lower die 5 in the next moving process, the extension motor 21 is shortened, the plate is pulled out from between the limiting inner shafts 26 and falls into the lower die 5, and the next stamping process is performed. The stamping and transferring process is repeated until all stamping is completed, and the stamped parts are put down from the tail end of the stamping base 1 by the extrusion block 22.

[0045] During the stamping process, if the lower die 5 has a stamping hole, the lower die 5 and the upper punch 14 cooperate to punch the stamped plate. The excess material falling from the punching hole can gradually fall onto the conveyor 32 through the middle opening 29, the material leakage hole 30 and the material outlet 31. The conveyor 32 gradually transports the excess material into the material collecting groove 33. Smaller excess material directly falls onto the discharge inclined plate 38 through the shearing screen hole 35. Larger excess material continues to be retained in the material collecting groove 33. When the lower hydraulic cylinder 7 is shortened each time to drive the lower lifting frame 6 to move downward, the pressure cutting plate 36 is moved downward into the material collecting groove 33, the pressure cutting block 37 is inserted into the shearing screen hole 35, the excess material in the material collecting groove 33 is cut to make it broken and fall onto the discharge inclined plate 38, and then it is discharged outward, so that the finally discharged excess material is smaller and more convenient for collection and transfer.

[0046] When the last process of stamping is performed, the side wall of the part needs to be shaped or punched, the lower die 5 and the upper punch 14 are engaged to drive the stamping strip 47 to move downward and contact the sliding stamping seat 39. The pressure inclined surface 48 gradually contacts the pressure receiving inclined surface 46 to push the sliding stamping seat 39 to compress the return spring 45, so that the side stamping die 40 gradually moves close to the lower die 5 to shape or punch the side plate of the part. When the lower die 5 and the upper punch 14 move away from each other, the stamping strip 47 moves upward, and under the action of the return spring 45, the sliding stamping seat 39 is reset outward to be ready for the next stamping.

[0047] It should be further explained that all the "arranged" and similar descriptions in the present application (especially the specification) express that there is a connection between two structures, but the specific connection means is not limited too much, and is usually a conventional connection means, that is, it should be understood that the means is prior art, and does not need to be described too much. For example, "m is arranged with n", only expresses that there is n structure on m structure, and the specific connection between the two is through welding, riveting, adhesive connection or one-piece forming, which is within the protection scope of the present application. For example, "x is arranged with y", only expresses that y and x can rotate relative to each other, and as for whether the two are connected through a bearing to rotate, or y directly penetrates x to rotate with x, or other realizable modes, which are within the protection scope of the present application.

[0048] The above description is only a description of the preferred embodiments of the present application, and is not any limitation on the scope of the present application. Any modification and modification of the present application by a person skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A stamping device, comprising a stamping base (1), characterized in that, The upper end of the stamping base (1) is provided with a lower support platform (3), and the upper end of the lower support platform (3) is provided with a plurality of lower die mounting plates (4) distributed along its length direction. Each lower die mounting plate (4) is provided with a lower die (5) at its upper end. A lower lifting frame (6) is movably provided inside the stamping base (1). The lower lifting frame (6) and the bottom of the stamping base (1) are provided with a plurality of lower hydraulic cylinders (7). The lower end of each lower die mounting plate (4) is provided with a vertical connecting strip (8) connected to the lower lifting frame (6). The lower support platform (3) is provided with a plurality of lifting sliding holes (9) that are slidably connected to the vertical connecting strips (8) one by one. An upper stamping frame (10) is provided above the stamping base (1). An upper lifting frame (11) is movably provided inside the upper stamping frame (10). Multiple upper hydraulic cylinders (12) are installed between the upper end of the upper lifting frame (11) and the top inside the upper stamping frame (10). Multiple upper mold mounting plates (13) corresponding to the lower mold mounting plate (4) are provided at the lower end of the upper lifting frame (11). Each upper mold mounting plate (13) has an upper punch (14) that cooperates with the corresponding lower die (5) at its lower end. Each lower die (5) and the corresponding lower die mounting plate (4) are provided with a sliding top hole (15). The lower support platform (3) is provided with multiple top strips (16) that are slidably connected to the sliding top holes (15) one by one. The upper end of each top strip (16) is matched with the bottom shape inside the corresponding lower die (5). Connecting slide bars (17) are slidably connected to both sides of the upper stamping frame (10) along its length direction. Each connecting slide bar (17) is located on both sides between the lower die (5) and the upper punch (14). A sliding drive motor is installed in the upper stamping frame (10) to drive the connecting slide bars (17) to slide one by one. Each connecting slide bar (17) is equipped with multiple telescopic motors (21) that correspond one-to-one with the lower die (5). Each telescopic motor (21) has a pressing block (22) at the free end of its telescopic shaft. Each extrusion block (22) is a hollow structure. Each extrusion block (22) has several telescopic holes (24) on the side away from the corresponding telescopic motor (21). Each extrusion block (22) has multiple telescopic limiting shafts that correspond one-to-one with the telescopic holes (24). Each telescopic limiting shaft includes an outer sleeve (25) connected to the bottom of the corresponding extrusion block (22) and a limiting inner shaft (26) that is slidably connected to the inner wall of the corresponding outer sleeve (25) and extends to the corresponding telescopic hole (24). Each limiting inner shaft (26) has a pressure ring (27) in the corresponding extrusion block (22). Each outer sleeve (25) is fitted with a support spring (28) located between the corresponding pressure ring (27) and the inner wall of the corresponding extrusion block (22).

2. The stamping device according to claim 1, characterized in that, Each extrusion block (22) is connected to a corresponding connecting slide (17) by multiple telescopic connecting shafts (23).

3. The stamping device according to claim 1, characterized in that, One end of the stamping base (1) is provided with a plate placement platform (2) horizontally outward. Both sides of the upper stamping frame (10) are provided with slide rails (18) connected to the corresponding connecting slides (17). Each slide rail (18) extends to the top of the plate placement platform (2). The number of telescopic motors (21) on each connecting slide (17) is equal to the number of all lower dies (5) plus the number of the plate placement platforms (2).

4. A stamping device according to claim 1, characterized in that, Each sliding drive motor is a linear motor (19) arranged along the length direction of the connecting slide bar (17), and each linear motor (19) has multiple moving parts (20) slidably connected to the corresponding connecting slide bar (17) on its magnetic track.

5. A stamping device according to claim 1, characterized in that, Each telescopic motor (21) is a voice coil motor.

6. A stamping press for manufacturing automotive parts, based on a stamping device according to any one of claims 1-5, characterized in that, A central opening (29) is provided below the corresponding lower die (5) through each lower die mounting plate (4). Multiple material discharge ports (30) are provided below each lower die mounting plate (4) through the lower lifting frame (6). Multiple material discharge ports (31) are provided through the lower lifting frame (6). A conveyor (32) is provided in the stamping base (1) below the lower lifting frame (6) along its length direction. A material collection trough (33) is provided at one end of the stamping base (1) below the free end of the conveyor (32). Multiple shearing screen holes (35) are provided through the bottom of the material collection trough (33). A pressure cutting plate (36) is connected to one end of the lower lifting frame (6) above the material collection trough (33). Multiple pressure cutting blocks (37) corresponding to the shearing screen holes (35) are provided at the lower end of the pressure cutting plate (36). The upper end of the lower support platform (3) located at the end of the process is slidably connected to the outer periphery of the corresponding lower die (5) with a sliding stamping seat (39). Each sliding stamping seat (39) slides toward the corresponding lower die (5). A side stamping die (40) can be detachably connected to the side of each sliding stamping seat (39) facing the corresponding lower die (5). The upper end of the lower support platform (3) here is provided with a connecting seat (41) on both sides of each sliding stamping seat (39). Each connecting seat (41) is provided with a connecting sliding hole (42) in the direction of the corresponding sliding stamping seat (39). Each sliding stamping seat (39) is provided with two connecting sliding shafts (44) that are slidably connected to the corresponding connecting sliding hole (42) respectively. 3) Each free end of the connecting slide shaft (43) is provided with a limit cap (44), and each limit cap (44) and the corresponding connecting seat (41) are provided with a return spring (45) that is sleeved on the corresponding connecting slide shaft (43). The side of each sliding stamping seat (39) away from the corresponding lower die (5) is an outward and downward pressure-bearing slope (46). The upper die mounting plate (13) located at the tail end process is provided with a plurality of stamping strips (47) that correspond one-to-one with the sliding stamping seat (39) on the outer periphery of the corresponding upper punch (14). Each stamping strip (47) facing the corresponding upper punch (14) is provided with a pressure-applying slope (48) that cooperates with the corresponding pressure-bearing slope (46).

7. A stamping press for producing automotive parts according to claim 6, characterized in that, The stamping base (1) is provided with an outward and downward inclined discharge plate (38) below the material collection trough (33).

8. A stamping press for producing automotive parts according to claim 6, characterized in that, The material collection trough (33) is provided with a guide plate (34) that is directed toward its inner wall and downward below the free end of the conveyor (32).

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