Stamping device for rapid forming of aluminum alloy steel plate

Abstract

The invention relates to the technical field of plate stamping, in particular to a stamping device for rapid forming of an aluminum alloy steel plate. The stamping die comprises a base seat, a forming cavity plate is arranged at the end of the base seat, a stamping part right facing the forming cavity plate is arranged at the end of the base seat, and a guide mechanism used for guiding the stamping end of the stamping part is arranged at the edge of the forming cavity plate. After stamping is completed, the aluminum alloy steel plate subjected to stamping forming can be rapidly ejected out through the ejection mechanism, and the formed aluminum alloy steel plate is laterally pushed out through the plate discharging mechanism under the limiting and guiding of the ejection limiting mechanism on the aluminum alloy plate, so that the aluminum alloy plate attached to the interior of the forming cavity plate is rapidly taken down, and the stamping efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plate stamping, and in particular to a stamping device for rapid prototyping of aluminum alloy steel plates. Background Art

[0002] Aluminum alloy has high strength, its specific strength is close to that of high alloy steel, its specific stiffness exceeds that of steel, it has good casting performance and plastic processing performance, good electrical and thermal conductivity, good corrosion resistance and weldability and many other excellent properties.

[0003] Aluminum alloys are widely used in aerospace, aviation, transportation, construction, electromechanics, light chemicals and daily necessities, mostly as shells, structural parts, etc. They account for a very large proportion in the manufacturing of shells for the automotive industry, shipbuilding industry, construction engineering and various types of mechanical equipment. Most aluminum alloy shells are formed by stamping aluminum alloy steel plates with stamping equipment.

[0004] The stamping device for aluminum alloy steel plates still has certain limitations in actual use: the rapid stamping device for aluminum alloy steel plates needs to use stamping parts to extrude the aluminum alloy steel plates into the mold cavity to form them. Since the aluminum alloy plates will fit tightly into the mold cavity when they are formed in the mold cavity, the edges will fit into the mold cavity and are difficult to take out. The aluminum alloy plates cannot be taken out quickly, which affects the overall efficiency of the stamping of the aluminum alloy plates. Summary of the invention

[0005] The purpose of the present invention is to provide a stamping device for rapid forming of aluminum alloy steel plates, so as to solve the problem that when the aluminum alloy plate is formed in a mold cavity, it will fit tightly into the mold cavity, the edge will fit into the mold cavity, and the aluminum alloy plate cannot be quickly taken out, which affects the overall efficiency of the stamping forming of the aluminum alloy plate.

[0006] In order to achieve the above-mentioned object, the present invention provides a stamping device for rapid prototyping of aluminum alloy steel plates, comprising a base seat, a forming cavity plate is arranged at the end of the base seat, a stamping piece facing the forming cavity plate is arranged at the end of the base seat, and a guiding mechanism for guiding the stamping end of the stamping piece is arranged at the edge of the forming cavity plate;

[0007] An ejection mechanism, the ejection mechanism is arranged below the molding cavity plate, a vertical through groove is opened in the center of the molding cavity plate, and an ejection end of the ejection mechanism passes through the through groove and fits the edge of the through groove;

[0008] A lower plate mechanism, the lower plate mechanism comprising a side push assembly and a side slide channel, the side push assembly being arranged on one side of the base, and the side slide channel being arranged on a side of the base away from the side push assembly, so that the side push assembly can push the ejected molding plate to move sideways to the side slide channel and slide out;

[0009] An ejection limiting mechanism, the ejection limiting mechanism is installed at the edge of the guide mechanism and the base seat, the ejection limiting mechanism includes an extrusion lifting assembly, an extrusion rod, an outer sliding limiting plate and a positioning guide assembly, the extrusion lifting assembly is movably installed on the guide mechanism, the positioning guide assembly is fixedly arranged outside the side wall of the base seat in the horizontal direction, the outer sliding limiting plate is slidably installed on the positioning guide assembly in the horizontal direction, one end of the extrusion rod is rotatably connected to the extrusion lifting assembly, and the other end is rotatably connected to the outer sliding limiting plate, and one side plate body of the outer sliding limiting plate is horizontally placed at the upper end of the edge of the molding cavity plate;

[0010] When the stamping end of the stamping part moves downward along the guide mechanism, it will squeeze the extrusion lifting assembly and push the outer sliding limiting plate to slide outward along the positioning guide assembly, so that the outer sliding limiting plate has no effect during the stamping process when the stamping end of the stamping part moves downward.

[0011] As a further improvement of the present technical solution, the guiding mechanism includes a guiding rod and an anti-slip ring, the guiding rods are grouped into four and are respectively arranged at the four corners of the top surface of the base seat, and the guiding rods are located at the edge of the forming cavity plate, the anti-slip ring is arranged at the top end of the guiding rod, and the extrusion lifting assembly includes a lifting frame and an extrusion spring, the lifting frame is sleeved on the guiding rod, and one end of the extrusion rod is rotatably connected to a frame body on one side of the lifting frame, the extrusion spring is arranged around the outside of the guiding rod, and the bottom end of the extrusion spring is connected to the top surface of the base seat, and the top end is fixedly connected to the lifting frame.

[0012] As a further improvement of the present technical solution, the positioning guide assembly includes a guide rail, a limit shaft and a return spring. The two guide rails are a group of mirror-symmetrical and are vertically arranged outside the side wall of the base seat in the horizontal direction. The limit shaft is arranged on the inner side of the guide rail. The two ends of the outer sliding limit plate are respectively slidably installed in the two guide rails, and the limit shaft passes through the end of the outer sliding limit plate. The return spring is arranged around the outside of the limit shaft, and the return spring acts on the end of the outer sliding limit plate.

[0013] As a further improvement of the present technical solution, the outer sliding limiting plate includes a horizontal frame and a limiting cross plate arranged at the end of the horizontal frame, wherein the two ends of the horizontal frame are respectively slidably installed in two guide rails, the limiting cross plate is connected to the horizontal frame through a vertical plate body, and the cross plate part is horizontally placed at the upper end of the edge of the molding cavity plate.

[0014] As a further improvement of the present technical solution, the ejection mechanism includes a lifting cylinder, a lifting block and an anti-collapse bottom plate. The lifting cylinder is vertically upwardly arranged on the inner side of the base seat, the lifting block is vertically movably installed in the through groove in the center of the molding cavity plate, and the output end of the lifting cylinder passes through the top wall of the base seat and is connected to the lifting block. The anti-collapse bottom plate is arranged at the bottom end of the inner side of the through groove in the center of the molding cavity plate, and when the top surface of the lifting block is flush with the bottom wall of the molding cavity plate, the bottom end of the lifting block abuts against the anti-collapse bottom plate.

[0015] As a further improvement of the present technical solution, the side thrust assembly includes a working cylinder and a pushing frame, a mounting seat is provided on one side of the end of the base seat, the working cylinder is arranged on the inner side of the mounting seat, and the pushing end of the working cylinder is located on the horizontal plane directly above the molding cavity plate, and the pushing frame is arranged on the pushing end of the working cylinder.

[0016] As a further improvement of the technical solution, the bottom end of the push frame is at the same level as the top surface of the molding cavity plate, and the top end of the push frame is at the same level as the bottom surface of the limiting horizontal plate of the outer sliding limiting plate.

[0017] As a further improvement of the technical solution, the side sliding channel is obliquely arranged on the side of the end of the base away from the working cylinder, and anti-separation side frames are arranged on the edges of both sides of the side sliding channel.

[0018] Compared with the prior art, the present invention provides a punching device for rapid prototyping of aluminum alloy steel plates, which has the following beneficial effects:

[0019] The present invention, through the joint action of the forming cavity plate, the stamping part, the ejection mechanism, the lower plate mechanism and the ejection limiting mechanism, can use the ejection mechanism to quickly eject the stamped aluminum alloy steel plate after the stamping is completed, and use the lower plate mechanism to laterally push out the formed aluminum alloy steel plate under the restriction and guidance of the ejection limiting mechanism on the aluminum alloy plate, so as to quickly remove the aluminum alloy plate bonded in the forming cavity plate and improve the stamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 It is a schematic diagram of the overall structure separation of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the ejection mechanism in the present invention;

[0024] Figure 5 It is a schematic diagram of the structural distribution of the molding cavity plate, the lower plate mechanism and the ejection limiting mechanism in the present invention;

[0025] Figure 6 for Figure 5 A magnified view of the structure at center;

[0026] Figure 7 It is a structural cross-sectional view of the molding cavity plate, the lower plate mechanism and the ejection limiting mechanism in the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of the structure at point B in the middle.

[0028] In the figure: 1. base seat; 2. forming cavity plate; 3. stamping part; 4. guiding mechanism; 401. guiding rod; 402. anti-slip ring; 5. ejection mechanism; 501. lifting cylinder; 502. lifting block; 503. anti-collapse bottom plate; 6. lower plate mechanism; 61. side thrust assembly; 611. working cylinder; 612. pushing frame; 62. side sliding channel; 7. ejection limiting mechanism; 71. extrusion lifting assembly; 711. lifting frame; 712. extrusion spring; 72. extrusion rod; 73. outer sliding limiting plate; 74. positioning guiding assembly; 741. guide rail; 742. limit shaft; 743. reset spring. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Reference Figure 1-8A stamping device for rapid prototyping of aluminum alloy steel plates, in order to quickly eject the aluminum alloy plate formed by stamping in the cavity, guide and push the aluminum alloy plate to slide out, and improve the stamping efficiency, the device includes: a base 1, a molding cavity plate 2 is arranged at the end of the base 1, a stamping part 3 facing the molding cavity plate 2 is arranged at the end of the base 1, and a guiding mechanism 4 for guiding the stamping end of the stamping part 3 is arranged at the edge of the molding cavity plate 2;

[0033] The ejection mechanism 5 is arranged below the molding cavity plate 2. A vertical through groove is provided at the center of the molding cavity plate 2. The ejection end of the ejection mechanism 5 passes through the through groove and fits the edge of the through groove.

[0034] The lower plate mechanism 6 includes a side push assembly 61 and a side slide channel 62. The side push assembly 61 is arranged on one side of the base 1, and the side slide channel 62 is arranged on the side of the base 1 away from the side push assembly 61, so that the side push assembly 61 can push the ejected molding plate to move sideways to the side slide channel 62 and slide out;

[0035] The ejection limiting mechanism 7 is installed at the edge of the guide mechanism 4 and the base seat 1. The ejection limiting mechanism 7 includes an extrusion lifting assembly 71, an extrusion rod 72, an outer sliding limiting plate 73 and a positioning guide assembly 74. The extrusion lifting assembly 71 is movably installed on the guide mechanism 4. The positioning guide assembly 74 is fixedly arranged outside the side wall of the base seat 1 in the horizontal direction. The outer sliding limiting plate 73 is slidably installed on the positioning guide assembly 74 in the horizontal direction. One end of the extrusion rod 72 is rotatably connected to the extrusion lifting assembly 71, and the other end is rotatably connected to the outer sliding limiting plate 73. One side plate of the outer sliding limiting plate 73 is horizontally placed at the upper end of the edge of the molding cavity plate 2;

[0036] When the stamping end of the stamping part 3 moves downward along the guide mechanism 4, it will squeeze the extrusion lifting assembly 71 and push the outer sliding limiting plate 73 to slide outward along the positioning guide assembly 74, so that the outer sliding limiting plate 73 has no effect during the stamping process when the stamping end of the stamping part 3 moves downward.

[0037] The guiding mechanism 4 comprises a guiding rod 401 and an anti-slip ring 402. The guiding rods 401 are grouped into four and are respectively arranged at the four corners of the top surface of the base 1. The guiding rods 401 are located at the edge of the molding cavity plate 2. The anti-slip ring 402 is arranged at the top of the guiding rod 401. The extrusion lifting assembly 71 comprises a lifting frame 711 and an extrusion spring 712. The lifting frame 711 is sleeved on the guiding rod 401. The extrusion spring 712 is arranged around the outside of the guiding rod 401. The bottom end of the extrusion spring 712 is connected to the top surface of the base 1, and the top end is fixedly connected to the lifting frame 711, so that the lifting frame 711 will compress the extrusion spring 712 when moving downward, and provide elastic force for the lifting frame 711 to reset.

[0038] When the cam 72 is in the closed position, the stopper 742 is engaged with the stopper 743, and the stopper 743 is engaged with the stopper 744. When the cam 72 is in the closed position, the stopper 742 is engaged with the stopper 744, and the stopper 743 is engaged with the stopper 744.

[0039] Furthermore, the outer sliding limiting plate 73 includes a horizontal frame and a limiting transverse plate arranged at the end of the horizontal frame, wherein the two ends of the horizontal frame are respectively slidably installed in two guide rails 741, the limiting transverse plate is connected to the horizontal frame through a vertical plate body, and the transverse plate part is horizontally placed at the upper end of the edge of the forming cavity plate 2. When the ejection mechanism 5 lifts the aluminum alloy sheet formed in the forming cavity plate 2, the aluminum alloy sheet rises to contact the limiting transverse plate to stop. At this time, the forming cavity plate 2 and the limiting transverse plates on both sides form a guiding channel, which is convenient for pushing the aluminum alloy sheet to move.

[0040] In addition, the ejection mechanism 5 includes a lifting cylinder 501, a lifting block 502 and an anti-collapse bottom plate 503. The lifting cylinder 501 is vertically upwardly arranged on the inner side of the base seat 1, and the lifting block 502 is movably installed in the vertical direction in the through groove at the center of the forming cavity plate 2, and the output end of the lifting cylinder 501 passes through the top wall of the base seat 1 and is connected to the lifting block 502. The anti-collapse bottom plate 503 is arranged at the bottom end of the inner side of the through groove at the center of the forming cavity plate 2, and when the top surface of the lifting block 502 is flush with the bottom wall of the forming cavity plate 2, the bottom end of the lifting block 502 is against the anti-collapse bottom plate 503. During the stamping process, the pressure is huge to stamp the aluminum alloy steel plate into the forming cavity plate within 2 years. During stamping, the lifting block 502 will be subjected to huge pressure. The support of the lifting block 502 by the anti-collapse bottom plate 503 can prevent the lifting block 502 from being crushed and damaging the lifting cylinder 501.

[0041] The side push assembly 61 includes a working cylinder 611 and a pushing frame 612. A mounting seat is provided on one side of the end of the base seat 1. The working cylinder 611 is provided on the inner side of the mounting seat, and the pushing end of the working cylinder 611 is located on the horizontal plane directly above the forming cavity plate 2. The pushing frame 612 is provided on the pushing end of the working cylinder 611. When the ejection mechanism 5 ejects the stamped aluminum alloy sheet, the working cylinder 611 is used to drive the pushing frame 612 to push the aluminum alloy sheet to the side sliding channel 62 on the other side of the end of the base seat 1.

[0042] Furthermore, the bottom end of the pushing frame 612 is at the same horizontal plane as the top surface of the forming cavity plate 2, and the top end of the pushing frame 612 is maintained at the same level as the bottom surface of the limiting horizontal plate of the outer sliding limiting plate 73. When the aluminum alloy plate is lifted to between the top surface of the forming cavity plate 2 and the limiting horizontal plate, the pushing frame 612 can be used to push the aluminum alloy plate to move in the guide channel formed by the forming cavity plate 2 and the limiting horizontal plate.

[0043] In addition, the side sliding channel 62 is obliquely arranged at a side of the end of the base 1 away from the working cylinder 611, and side frames for preventing separation are arranged on both side edges of the side sliding channel 62.

[0044] In this embodiment, the aluminum alloy steel plate is placed on the forming cavity plate 2, the stamping part 3 is started, and the stamping end of the stamping part 3 is used to slide down along the guide rod 401. During the sliding process, the edge of the stamping end of the stamping part 3 will squeeze the lifting frame 711 and move down along the guide rod 401. When the lifting frame 711 moves down, it will squeeze the squeezing spring 712. At the same time, the squeezing rod 72 on one side of the lifting frame 711 will squeeze the outer sliding limit plate 73 to slide outward along the guide rail 741. During the process, the outer sliding limit plate 73 squeezes the reset spring 743 under the guidance of the limit shaft 742, so that the outer sliding limit plate 73 slides outward above the edge of the forming cavity plate 2. As the stamping end of the stamping part 3 continues to move downward, the stamping end of the stamping part 3 will stamp the aluminum alloy steel plate, so that the aluminum alloy steel plate is formed on the forming cavity plate 2. After the stamping forming is completed, the stamping end of the stamping part 3 is reset. During the reset process of the stamping end of the stamping part 3, the squeeze spring 712 is squeezed. The compression spring 712 pops out the lifting frame 711, and the return spring 743 squeezes the outer sliding limit plate 73 to slide back, and acts on the lifting frame 711 through the squeezing rod 72, so that the lifting frame 711 is reset along the guide rod 401. At this time, the cross plate part of the outer sliding limit plate 73 is again horizontally placed above the edge of the forming cavity plate 2, and a guiding channel is formed through the forming cavity plate 2 and the outer sliding limit plates 73 on both sides. At this time, the lifting cylinder 501 is started, and the aluminum alloy steel plate that has been stamped is lifted by the lifting block 502 at the end of the lifting cylinder 501, so that the aluminum alloy steel plate is against the outer sliding limit plate 73. At this time, the working cylinder 611 is started, and the pushing frame 612 is used to push the aluminum alloy steel plate through the guiding channel formed by the forming cavity plate 2 and the outer sliding limit plates 73 on both sides, slide sideways to one side of the side sliding channel 62 and slide down, completing the guidance and pushing of the stamped aluminum alloy steel plate to slide out, and quickly remove it, thereby improving the stamping efficiency.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A punching device for rapid prototyping of aluminum alloy steel plates, characterized in that: include: A base (1), wherein a molding cavity plate (2) is disposed at an end of the base (1), a stamping piece (3) facing the molding cavity plate (2) is disposed at the end of the base (1), and a guiding mechanism (4) for guiding the stamping end of the stamping piece (3) is disposed at an edge of the molding cavity plate (2); An ejection mechanism (5), the ejection mechanism (5) being arranged below the molding cavity plate (2), the molding cavity plate (2) having a vertical through groove in the center, the ejection end of the ejection mechanism (5) passing through the through groove and abutting against the edge of the through groove; A lower plate mechanism (6), the lower plate mechanism (6) comprising a side push assembly (61) and a side slide channel (62), the side push assembly (61) being arranged on one side of the base seat (1), and the side slide channel (62) being arranged on a side of the base seat (1) away from the side push assembly (61), so that the side push assembly (61) can push the ejected molding plate to move sideways to the side slide channel (62) and slide out; An ejection limiting mechanism (7), the ejection limiting mechanism (7) being installed at the edge of the guide mechanism (4) and the base seat (1), the ejection limiting mechanism (7) comprising an extrusion lifting assembly (71), an extrusion rod (72), an outer sliding limiting plate (73) and a positioning guide assembly (74), the extrusion lifting assembly (71) being movably installed on the guide mechanism (4), the positioning guide assembly (74) being fixedly arranged outside the side wall of the base seat (1) in a horizontal direction, the outer sliding limiting plate (73) being slidably installed on the positioning guide assembly (74) in a horizontal direction, one end of the extrusion rod (72) being rotatably connected to the extrusion lifting assembly (71), and the other end being rotatably connected to the outer sliding limiting plate (73), and one side plate body of the outer sliding limiting plate (73) being horizontally arranged at the upper end of the edge of the molding cavity plate (2); When the punching end of the punching part (3) moves downward along the guide mechanism (4), it squeezes the extrusion lifting assembly (71) and pushes the outer sliding limiting plate (73) to slide outward along the positioning guide assembly (74), so that the outer sliding limiting plate (73) has no effect during the punching process when the punching end of the punching part (3) moves downward.

2. A punching device for rapid prototyping of aluminum alloy steel plates according to claim 1, characterized in that: The guide mechanism (4) comprises a guide rod (401) and an anti-slip ring (402). The guide rods (401) are arranged in groups of four at the four corners of the top surface of the base seat (1), and the guide rods (401) are located at the edge of the molding cavity plate (2). The anti-slip ring (402) is arranged at the top of the guide rod (401). The extrusion lifting assembly (71) comprises a lifting frame (711) and an extrusion spring (712). The lifting frame (711) is sleeved on the guide rod (401), and one end of the extrusion rod (72) is rotatably connected to a side frame of the lifting frame (711). The extrusion spring (712) is arranged around the outside of the guide rod (401), and the bottom end of the extrusion spring (712) is connected to the top surface of the base seat (1), and the top end is fixedly connected to the lifting frame (711).

3. The punching device for rapid prototyping of aluminum alloy steel plates according to claim 1, characterized in that: The positioning guide assembly (74) includes a guide rail (741), a limit shaft (742) and a return spring (743). The two guide rails (741) are mirror-symmetrical in a group and are arranged vertically outside the side wall of the base seat (1) in the horizontal direction. The limit shaft (742) is arranged on the inner side of the guide rail (741). The two ends of the outer sliding limit plate (73) are respectively slidably installed in the two guide rails (741), and the limit shaft (742) passes through the end of the outer sliding limit plate (73). The return spring (743) is arranged around the outer side of the limit shaft (742), and the return spring (743) acts on the end of the outer sliding limit plate (73).

4. The punching device for rapid prototyping of aluminum alloy steel plates according to claim 1, characterized in that: The outer sliding limiting plate (73) comprises a horizontal frame and a limiting transverse plate arranged at the end of the horizontal frame, wherein the two ends of the horizontal frame are respectively slidably installed in two guide rails (741), the limiting transverse plate is connected to the horizontal frame through a vertical plate body, and the transverse plate part is horizontally placed at the upper end of the edge of the molding cavity plate (2).

5. The punching device for rapid prototyping of aluminum alloy steel plates according to claim 1, characterized in that: The ejection mechanism (5) comprises a lifting cylinder (501), a lifting block (502) and an anti-collapse bottom plate (503); the lifting cylinder (501) is vertically upwardly arranged on the inner side of the base seat (1); the lifting block (502) is vertically movably installed in a through groove at the center of the molding cavity plate (2); and the output end of the lifting cylinder (501) passes through the top wall of the base seat (1) and is connected to the lifting block (502); the anti-collapse bottom plate (503) is arranged at the bottom end of the inner side of the through groove at the center of the molding cavity plate (2); and when the top surface of the lifting block (502) is flush with the bottom wall of the molding cavity plate (2), the bottom end of the lifting block (502) abuts against the anti-collapse bottom plate (503).

6. The punching device for rapid prototyping of aluminum alloy steel plates according to claim 1, characterized in that: The side thrust assembly (61) comprises a working cylinder (611) and a pushing frame (612); a mounting seat is provided at one side of the end of the base seat (1); the working cylinder (611) is arranged inside the mounting seat, and the pushing end of the working cylinder (611) is located on a horizontal plane directly above the molding cavity plate (2); and the pushing frame (612) is arranged on the pushing end of the working cylinder (611).

7. A punching device for rapid prototyping of aluminum alloy steel plates according to claim 6, characterized in that: The bottom end of the pushing frame (612) is in the same horizontal plane as the top surface of the molding cavity plate (2), and the top end of the pushing frame (612) is in the same horizontal plane as the bottom surface of the limiting horizontal plate of the outer sliding limiting plate (73).

8. The punching device for rapid prototyping of aluminum alloy steel plates according to claim 6, characterized in that: The side sliding channel (62) is arranged obliquely on a side of the end of the base (1) away from the working cylinder (611), and anti-detachment side frames are arranged on both side edges of the side sliding channel (62).

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