A stamping die for metal structure die casting

Abstract

The present invention discloses a stamping die for metal structure die castings, specifically relates to the field of stamping dies, including an upper die mechanism, a lower die mechanism is provided at the bottom of the upper die mechanism, a guide column assembly is fixedly connected between the upper die mechanism and the lower die mechanism, a limiting mechanism is provided inside the lower die mechanism, a workpiece guide mechanism is fixedly connected at the top of the lower die mechanism, the upper die mechanism includes an upper template assembly fixedly connected to the top of the guide column assembly, a punch is fixedly connected to the bottom of the upper template assembly, the lower die mechanism includes a lower template assembly fixedly connected to the bottom of the guide column assembly, and a concave die support platform is fixedly connected to the top of the lower template assembly. The present invention promotes the expansion of an airbag when the upper die mechanism moves upward, so that when the formed workpiece enters the inner cavity of the forming groove, it is limited by a material stop block and falls off the outer wall of the punch, thereby avoiding the problems of push marks and deformation caused by the traditional jacking assembly pushing the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and more specifically, to a stamping die for metal structure die castings. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method that uses a die connected to a press to apply pressure to the material at room temperature to separate or plastically deform the material, thereby obtaining the desired parts. There are many forms of stamping dies, and the dies are also classified according to the nature of the work, the structure of the die, and the material of the die. According to the process properties, they can be classified into four types: blanking dies, bending dies, drawing dies, and forming dies. Among them, the drawing die is the most common, which is a die that makes a sheet blank into an open hollow part, or further changes the shape and size of a hollow part.

[0003] The Chinese patent with application number CN202311709662.1 invented a stamping die for metal structure die castings, including a workbench fixedly connected by four support columns, a discharge port is provided on the top of the workbench, a collection box with a top opening is placed below the workbench corresponding to the discharge port, a lower die is provided on the top of the workbench, an adjustment component is provided on the top of the workbench, the adjustment component drives the lower die to move linearly, and a driving unit is provided above the workbench. The present invention relates to the technical field of stamping dies. After the driving unit of the present invention works for stamping, it adsorbs the die casting and drives the die casting to move upward, and then the lower die moves horizontally to expose the discharge port, and the die casting directly passes through the discharge port and falls into the collection box, thereby automatically realizing the demoulding and collection of the die casting, reducing the participation of the operator, improving the intelligence of the device, and reducing the labor intensity of the operator. However, during the stamping process, the patent has problems such as push marks on the bottom and inaccurate stamping of the mold, which affects the working efficiency of metal castings.

[0004] At present, after metal castings are stamped, the molded castings are mostly inside the lower mold, and then the molded castings are pushed up by the jacking assembly to be taken out. However, for curved U-shaped hollow parts, when they are pushed from bottom to top, there is often a force on the bottom, resulting in push marks on the bottom, which in turn causes deformation of the workpiece and other problems that affect the aesthetics and quality of the workpiece. It is inconvenient to use. The existing metal castings to be stamped are limited in position and need to be placed manually, which is prone to incorrect placement or manual accidents, resulting in dimensional deviation or molding defects of the molded products.

[0005] Therefore, a stamping die for metal structure die castings is invented to solve the above problems. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a stamping die for metal structure die-casting parts. When the upper die mechanism moves upward, the airbag is caused to expand, so that when the formed workpiece enters the inner cavity of the forming groove, it is limited by the stop block and falls off from the outer wall of the punch, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a stamping die for metal structure die castings, comprising an upper die mechanism, a lower die mechanism is provided at the bottom of the upper die mechanism, a guide column assembly is fixedly connected between the upper die mechanism and the lower die mechanism, a limiting mechanism is provided inside the lower die mechanism, and a workpiece guide mechanism is fixedly connected to the top of the lower die mechanism;

[0008] The upper mold mechanism comprises an upper template assembly fixedly connected to the top of the guide column assembly, the bottom of the upper template assembly is fixedly connected to the punch, the lower mold mechanism comprises a lower template assembly fixedly connected to the bottom of the guide column assembly, the top of the lower template assembly is fixedly connected to the die support platform, the lower template assembly and the die support platform are both provided with a forming groove arranged in a through shape, the limiting mechanism comprises a slide groove arranged in the die support platform, the inside of the slide groove is slidably connected to a guide plate, one side of the guide plate is fixedly connected to a stop block, the side of the guide plate away from the stop block is fixedly connected to an airbag fixedly connected to the slide groove, the airbag is elliptical, and the inside of the airbag is fixedly connected to a telescopic spring;

[0009] The top of the lower template assembly is fixedly connected with an air storage cylinder, and the air storage cylinder is communicated with the workpiece guiding mechanism.

[0010] Preferably, the number of the limiting mechanisms is set to two, the two limiting mechanisms are located on the vertical center line of the forming groove and are arranged in a symmetrical state, and the tops of the two stop blocks are arranged in a slope shape.

[0011] Preferably, both sides of the bottom of the lower template assembly are provided with through grooves connected to the airbag, and one side of the lower template assembly is fixedly connected with a ventilation pipe connected to the through groove, and the ventilation pipe is connected to the air storage cylinder.

[0012] Preferably, the inner cavity of the air storage cylinder is connected to a piston member in a horizontal sliding state, and one end of the piston member extending out of the outer wall of the air storage cylinder is rotatably connected to a support plate, and the interior of the support plate is rotatably connected to a support rod fixedly connected to the guide column assembly.

[0013] Preferably, the top of the lower template assembly is slidably connected to a sliding assembly rotatably connected to the support plate, a limiting groove is provided on the top of the lower template assembly, and the sliding assembly is slidably connected inside the limiting groove.

[0014] Preferably, the workpiece guiding mechanism includes a limit ring fixedly connected to the top of the die support platform, and both sides of the limit ring are slidably connected to limit plates. Under normal circumstances, the two limit plates are symmetrically arranged on the vertical center line of the forming groove, and the limit plate extends into the top of the limit ring and is fixedly connected to an inclined part.

[0015] Preferably, a telescopic cylinder is fixedly connected to the interior of the limiting ring, and the telescopic cylinder is symmetrically arranged with respect to the vertical center line of the forming groove. The telescopic end of the telescopic cylinder extending into the interior of the limiting ring is fixedly connected to a support frame, and the support frame is obliquely arranged, and the support frame is slidably connected to the two inclined parts.

[0016] Preferably, one end of the air storage cylinder close to the workpiece guiding mechanism is connected with a connecting pipe, and the connecting pipe is connected with the telescopic cylinder.

[0017] Preferably, under normal conditions, the airbag and the air storage cylinder are both filled with gas, and the telescopic cylinder is free of gas.

[0018] Preferably, the bottom of the lower template assembly is fixedly connected to a bottom plate, the interior of the bottom plate is slidably connected to a material receiving frame, and the forming groove is arranged directly above the material receiving frame.

[0019] Technical effects and advantages of the present invention:

[0020] 1. The present invention synchronously adjusts the distance between the two inclined members by driving the support frame to move. The inclined members drive the limit plates to contact the two sides of the sheet to be punched, so that the sheet to be processed is placed in the center on the top of the forming groove. The sheet to be processed is placed in the center on the top of the forming groove, which improves the accuracy of the sheet shape after punching, improves the overall punching quality of the device and improves the yield rate, ensures the accuracy of the size of the formed product, and makes it more adaptable to installation;

[0021] 2. The present invention drives the upper mold mechanism to move upward as a whole through the guide column assembly, so that the piston moves back, and the airbag expands to drive the stop block to move to the inner cavity of the forming groove. The stop block comes into contact with the upward workpiece, and the workpiece is limited by the stop block and falls off from the outer wall of the punch, thereby completing the forming and separation of the workpiece, so that the workpiece can fall off by itself, and there is no need to set up an additional lifting assembly to push the workpiece, thereby avoiding problems such as push marks and deformation of the workpiece, improving the life of the stamping die and the forming quality, and is easy to install and suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the upper mold mechanism of the present invention;

[0024] Figure 3 It is a cross-sectional view of the structure of the guide column assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the workpiece guide mechanism of the present invention;

[0026] Figure 5 It is a front cross-sectional view of the limiting mechanism structure of the present invention;

[0027] Figure 6 For the present invention Figure 5 A magnified view of the structure of part A;

[0028] Figure 7 For the present invention Figure 5 Enlarged view of the structure of part B.

[0029] The accompanying drawings are marked as follows: 1. upper mold mechanism; 11. upper mold plate assembly; 12. punch; 2. lower mold mechanism; 21. bottom plate; 22. lower mold plate assembly; 23. die support platform; 24. material receiving frame; 25. forming groove; 3. guide column assembly; 4. limiting mechanism; 41. slide groove; 42. guide plate; 43. material stop block; 44. air bag; 45. telescopic spring; 46. through groove; 47. ventilation pipe; 48. air storage cylinder; 49. piston member; 410. support plate; 411. support rod; 412. sliding assembly; 413. limiting groove; 5. workpiece guiding mechanism; 51. limiting ring; 52. limiting plate; 53. tilting member; 54. telescopic cylinder; 55. support frame; 56. connecting pipe. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] With existing stamping dies, employees perform repetitive operations continuously during the stamping process, which results in great physical exertion when operators manually pick up and feed materials thousands of times. Incorrect placement of the dies can directly lead to die explosions and safety accidents. The manufacturing precision of the stamping dies is not high, which can easily lead to dimensional deviations or forming defects in the formed products.

[0033] like Figure 1As shown, a stamping die for metal structure die castings comprises an upper die mechanism 1, a lower die mechanism 2 is provided at the bottom of the upper die mechanism 1, a guide column assembly 3 is fixedly connected between the upper die mechanism 1 and the lower die mechanism 2, a limiting mechanism 4 is provided inside the lower die mechanism 2, and a workpiece guide mechanism 5 is fixedly connected to the top of the lower die mechanism 2;

[0034] like Figure 3 , 4 As shown, the upper die mechanism 1 includes an upper die assembly 11 fixedly connected to the top of the guide column assembly 3, and the bottom of the upper die assembly 11 is fixedly connected to a punch 12. The lower die mechanism 2 includes a lower die assembly 22 fixedly connected to the bottom of the guide column assembly 3, and the top of the lower die assembly 22 is fixedly connected to a die support platform 23. The top of the lower die assembly 22 is fixedly connected to an air reservoir 48, and the air reservoir 48 is connected to the workpiece guide mechanism 5. The inner cavity of the air reservoir 48 is in a horizontal sliding state and is connected to a piston 49. In normal conditions, the piston 49 is fully extended into The inner cavity of the air storage cylinder 48, and at this time the guide column assembly 3 is in an extended state, the upper mold mechanism 1 and the lower mold mechanism 2 are in a state of being away from each other, and one end of the piston member 49 extending out of the outer wall of the air storage cylinder 48 is rotatably connected to a support plate 410, and the inside of the support plate 410 is rotatably connected to a support rod 411 fixedly connected to the guide column assembly 3, and the top of the lower template assembly 22 is slidably connected to a sliding assembly 412 rotatably connected to the support plate 410, and a limiting groove 413 is provided on the top of the lower template assembly 22, and the sliding assembly 412 is slidably connected inside the limiting groove 413.

[0035] The workpiece guiding mechanism 5 includes a limit ring 51 fixedly connected to the top of the die support platform 23, and both sides of the limit ring 51 are slidably connected to the limit plates 52. The two limit plates 52 are located at the vertical center line of the forming groove 25 in a symmetrical state under normal conditions. The limit plates 52 extend into the top of the limit ring 51 and are fixedly connected with an inclined member 53. The inside of the limit ring 51 is fixedly connected with a telescopic cylinder 54. The telescopic cylinder 54 is located at the vertical center line of the forming groove 25 and is symmetrically arranged. The telescopic end of the telescopic cylinder 54 extending into the limit ring 51 is fixedly connected with a support frame 55. The support frame 55 is obliquely arranged. 55 is arranged in a sliding connection state with the two inclined members 53. Under normal conditions, the two inclined members 53 are limited by the support frame 55 and are arranged on the top of the die support platform 23 in a symmetrical state. Under normal conditions, there is no gas in the telescopic cylinder 54 and it is in the shortest contraction state. At this time, the two limiting plates 52 are limited by the support frame 55, and the distance between the two limiting plates 52 is the farthest. One end of the air storage cylinder 48 close to the workpiece guide mechanism 5 is connected with a connecting pipe 56, and the connecting pipe 56 is connected to the telescopic cylinder 54. Under normal conditions, the airbag 44 and the air storage cylinder 48 are both filled with gas, and there is no gas in the telescopic cylinder 54.

[0036] When the guide column assembly 3 is started to retract, the retracted guide column assembly 3 drives the support rod 411 to move downward, thereby causing the support plate 410 to deflect and as the sliding assembly 412 moves inside the limiting groove 413, the sliding assembly 412 drives the piston member 49 to translate as a whole in the inner cavity of the gas storage cylinder 48, and the piston member 49 moves to squeeze the internal gas of the gas storage cylinder 48. The internal gas of the gas storage cylinder 48 enters the telescopic cylinder 54 through the connecting pipe 56, so that the telescopic cylinder 54 extends and pushes the support frame 55 to move to the side of the limiting ring 51 away from the telescopic cylinder 54. The support frame 55 slides inside the two inclined members 53, and the movement of the inclined members 53 drives the distance between the two limiting plates 52 to change. Then, in actual use, after the sheet to be stamped is placed on the top of the die support table 23, the support frame is driven 55 moves to synchronously adjust the distance between the two inclined members 53. The inclined members 53 drive the limit plates 52 to contact the two sides of the sheet to be punched, so that the sheet to be processed is placed in the center on the top of the forming groove 25. When the punch 12 punches the sheet, it can make the sheet enter the inner cavity of the forming groove 25 in a symmetrical state and deform. During stamping, the sheet can be evenly stressed and will not shift, which avoids employees working for a long time and placing the sheet to be processed at a position offset from the center, resulting in secondary processing of the sheet, which causes quality problems of the sheet to be processed. The stamping die can be automatically adjusted to place the sheet to be processed in the center on the top of the forming groove 25, which improves the accuracy of the shape of the sheet to be processed after stamping, improves the overall stamping quality of the device and the yield rate, ensures the size of the formed product is accurate, and makes it more adaptable to installation.

[0037] The guide column assembly 3 drives the upper mold mechanism 1 to move upward as a whole, so that the piston member 49 moves back, and the air cylinder inside the telescopic cylinder 54 enters the air storage cylinder 48 through the connecting pipe 56. The telescopic end of the telescopic cylinder 54 returns to its original position, and the telescopic cylinder 54 drives the support frame 55 to reset, and the support frame 55 drives the tilting member 53 to move, and the tilting member 53 drives the limit plate 52 to move, so that the limit plate 52 is reset. At this time, the distance between the two limit plates 52 is the farthest, so as to place the plate to be processed and facilitate the next use, thereby improving the working efficiency of the stamping die.

[0038] By driving the support frame 55 to move, the distance between the two inclined members 53 is synchronously adjusted. The inclined members 53 drive the limit plates 52 to contact the two sides of the sheet to be punched, so that the sheet to be processed is centered on the top of the forming groove 25. Placing the sheet to be processed on the top of the forming groove 25 improves the accuracy of the shape of the sheet after punching, improves the overall stamping quality of the device and the yield rate, ensures the accuracy of the size of the formed product, and makes it more adaptable to installation.

[0039] Example 2

[0040] Based on the above embodiments, the existing stamping die, when subjected to a push force from bottom to top during the stamping process, often has a bottom subjected to force resulting in push marks on the bottom, which in turn causes deformation of the workpiece and other problems affecting the aesthetics and quality of the workpiece.

[0041] like Figure 2-7 As shown, the lower template assembly 22 and the die support platform 23 are both provided with a through-shaped forming groove 25, the limiting mechanism 4 includes a slide groove 41 provided in the die support platform 23, the slide groove 41 is slidably connected with a guide plate 42, one side of the guide plate 42 is fixedly connected with a stop block 43, and the side of the guide plate 42 away from the stop block 43 is fixedly connected with an air bag 44 fixedly connected to the slide groove 41, the air bag 44 is elliptical, and the inside of the air bag 44 is fixedly connected with a telescopic spring 45, the number of the limiting mechanisms 4 is set to two, the two limiting mechanisms 4 are both located at the vertical center line of the forming groove 25 and are symmetrically arranged, the tops of the two stop blocks 43 are both inclined, and the bottom sides of the lower template assembly 22 are provided with through grooves 46 connected with the air bags 44. One side of the template assembly 22 is fixedly connected with a ventilation pipe 47 connected to the through groove 46, and the ventilation pipe 47 is connected to the air storage cylinder 48. Under normal conditions, the piston member 49 fully extends into the inner cavity of the air storage cylinder 48, and at this time the guide column assembly 3 is in an extended state, the upper mold mechanism 1 and the lower mold mechanism 2 are in a state of being away from each other, the airbag 44 is in an expanded state, one end of the telescopic spring 45 drives one side of the airbag 44 to be fixedly connected to the inner wall of the slide groove 41, and the airbag 44 is in a deflated state. The airbag 44 drives the guide plate 42 to move, and the guide plate 42 drives the stop block 43 to move as a whole and shrink into the inner cavity of the slide groove 41. The bottom of the lower template assembly 22 is fixedly connected with the base plate 21, and the interior of the base plate 21 is slidably connected with the material receiving frame 24, and the molding groove 25 is arranged directly above the material receiving frame 24.

[0042] When the guide column assembly 3 is started to retract, the retracted guide column assembly 3 drives the support rod 411 to move downward, thereby causing the support plate 410 to deflect and as the sliding assembly 412 moves inside the limiting groove 413, the sliding assembly 412 drives the piston member 49 to translate as a whole in the inner cavity of the gas storage cylinder 48, and the piston member 49 moves to squeeze the internal gas of the gas storage cylinder 48, so that the gas in the inner cavity of the airbag 44 is extracted, and the elastic restoring force of the telescopic spring 45 drives the stop block 43 to retract as a whole into the inner cavity of the slide groove 41, so that the workpiece continues to move to the bottom of the stop block 43 as the punch 12 moves downward, and as the guide column assembly 3 drives the upper mold mechanism 1 to move upward as a whole, the piston member 49 moves back, and the airbag 44 expands, driving the stop block 43 to move to the inner cavity of the molding groove 25, and while the punch 12 drives the deformed workpiece to move upward, it is blocked by the horizontal state. The bottom plane of the material block 43 is limited and cannot move, and the workpiece is isolated and limited at the bottom of the stop block 43, and when the two stop blocks 43 are fully extended into the inner cavity of the forming groove 25, the horizontal distance between the two stop blocks 43 is consistent with the horizontal width of the punch 12, so that the punch 12 can pass through the two stop blocks 43, and the workpiece after the deformation of the outer wall contacts the stop block 43. The workpiece is limited by the stop block 43 and falls off from the outer wall of the punch 12, and the forming and separation of the workpiece can be completed, so that the workpiece can fall off by itself, and there is no need to set up an additional lifting assembly to push the workpiece, so as to avoid problems such as push marks and deformation of the workpiece. The workpiece detached from the inner cavity of the forming groove 25 can directly fall into the interior of the receiving frame 24, which is more convenient to take, thereby improving the life of the stamping die and the forming quality. It is easy to install and suitable for mass production.

[0043] The guide column assembly 3 drives the upper mold mechanism 1 to move upward as a whole, so that the piston member 49 moves back, and the airbag 44 expands to drive the stop block 43 to move to the inner cavity of the forming groove 25. The stop block 43 comes into contact with the upwardly moved workpiece, and the workpiece is limited by the stop block 43 and falls off from the outer wall of the punch 12, thereby completing the forming and separation of the workpiece, so that the workpiece can fall off by itself, and there is no need to set up an additional lifting assembly to push the workpiece, thereby avoiding problems such as push marks and deformation of the workpiece, thereby improving the life of the stamping die and the forming quality. It is easy to install and is suitable for mass production.

[0044] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A stamping die for metal structure die castings, comprising an upper die mechanism (1), characterized in that: A lower mold mechanism (2) is provided at the bottom of the upper mold mechanism (1), a guide column assembly (3) is fixedly connected between the upper mold mechanism (1) and the lower mold mechanism (2), a limit mechanism (4) is provided inside the lower mold mechanism (2), and a workpiece guide mechanism (5) is fixedly connected to the top of the lower mold mechanism (2); The upper die mechanism (1) comprises an upper die assembly (11) fixedly connected to the top of the guide column assembly (3), the bottom of the upper die assembly (11) being fixedly connected to a male die (12), the lower die mechanism (2) comprising a lower die assembly (22) fixedly connected to the bottom of the guide column assembly (3), the top of the lower die assembly (22) being fixedly connected to a female die support platform (23), and the lower die assembly (22) and the female die support platform (23) are both provided with a through-shaped forming groove (25) inside; The limiting mechanism (4) comprises a slide groove (41) provided inside the die support platform (23); a guide plate (42) is slidably connected inside the slide groove (41); a material stopper (43) is fixedly connected to one side of the guide plate (42); an air bag (44) fixedly connected to the slide groove (41) is fixedly connected to the side of the guide plate (42) away from the material stopper (43); the air bag (44) is elliptical in shape; a telescopic spring (45) is fixedly connected to the inside of the air bag (44); The top of the lower template assembly (22) is fixedly connected to an air cylinder (48), and the air cylinder (48) is connected to the workpiece guide mechanism (5). Both sides of the bottom of the lower template assembly (22) are provided with through grooves (46) connected to the air bag (44). One side of the lower template assembly (22) is fixedly connected to a ventilation pipe (47) connected to the through groove (46), and the ventilation pipe (47) is connected to the air cylinder (48); The inner cavity of the air storage cylinder (48) is connected to a piston member (49) in a horizontal sliding state, and one end of the piston member (49) extending out of the outer wall of the air storage cylinder (48) is rotatably connected to a support plate (410), and the interior of the support plate (410) is rotatably connected to a support rod (411) fixedly connected to the guide column assembly (3).

2. A stamping die for metal structure die casting according to claim 1, characterized in that: The top of the lower template component (22) is slidably connected to a sliding component (412) which is rotatably connected to the support plate (410). A limiting groove (413) is provided on the top of the lower template component (22), and the sliding component (412) is slidably connected inside the limiting groove (413).

3. The stamping die for metal structure die casting according to claim 1, characterized in that: The workpiece guiding mechanism (5) comprises a limit ring (51) fixedly connected to the top of the die support platform (23), and both sides of the limit ring (51) are slidably connected to limit plates (52). The two limit plates (52) are symmetrically arranged on the vertical center line of the forming groove (25) under normal conditions, and the limit plates (52) extend into the top of the limit ring (51) and are fixedly connected to an inclined member (53).

4. The stamping die for metal structure die casting according to claim 3, characterized in that: A telescopic cylinder (54) is fixedly connected to the interior of the limiting ring (51). The telescopic cylinder (54) is symmetrically arranged on the vertical center line of the forming groove (25). The telescopic end of the telescopic cylinder (54) extending into the interior of the limiting ring (51) is fixedly connected to a support frame (55). The support frame (55) is obliquely arranged and is slidably connected to the two inclined members (53).

5. A stamping die for metal structure die casting according to claim 4, characterized in that: One end of the air storage cylinder (48) close to the workpiece guide mechanism (5) is connected to a connecting pipe (56), and the connecting pipe (56) is connected to the telescopic cylinder (54).

6. The stamping die for metal structure die casting according to claim 1, characterized in that: The number of the limiting mechanisms (4) is set to two, and the two limiting mechanisms (4) are both located on the vertical center line of the forming groove (25) and are arranged in a symmetrical state, and the tops of the two blocking blocks (43) are both arranged in a slope shape.

7. The stamping die for metal structure die casting according to claim 1, characterized in that: The bottom of the lower template assembly (22) is fixedly connected to a bottom plate (21), the interior of the bottom plate (21) is slidably connected to a material receiving frame (24), and the molding groove (25) is arranged directly above the material receiving frame (24).

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