High-speed stamping die device based on automobile complex structure

Abstract

The invention discloses a high-speed stamping die device based on an automobile complex structure, and relates to the technical field of stamping dies, the high-speed stamping die device comprises a base, an upper die plate and a lower die plate, and the bottom surface of the upper die plate is provided with an upper die core. According to the die, the stamping transmission mechanism is arranged between the upper die plate and the upper die core, secondary dispersion is conducted on stamping force divided into the middle part and stamping force conveyed to the periphery through the sleeve design of the jacking shaft assembly, and the shaft sleeve extrudes the upper jacking ring to slide downwards along the outer side wall of the lower jacking column; the shaft core is in fixed contact with the lower jacking column to provide constant primary stamping force, the shaft sleeve and the shaft core slide relatively, the shaft sleeve drives the second rotating rod to stamp downwards, redundant pressure is used for stamping the pressing plate, secondary stamping force is provided for the periphery of the part, and therefore stamping force for maintaining the structure stability is provided for the periphery of the complex arch-shaped part. And the problem that the formed shape of the part does not reach the standard due to insufficient stamping force is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, in particular to a high-speed stamping die device based on a complex structure of an automobile. Background Art

[0002] Stamping dies are special process equipment used to process materials into parts during cold stamping. They are called cold stamping dies. They include: die base, template, cavity and core, guide pin and guide sleeve, push rod, cooling system and other structures. The die installed on the press is used to apply pressure to the material to separate or plastically deform it, thereby obtaining the desired parts.

[0003] For example, the "Elastic unloading device in the high-speed precision stamping die for automobile terminals" with publication number: CN103752719B, the upper die and the punch fixing plate, the upper die is provided with an elastic unloading block, the punch fixing plate is provided with a blanking punch, the blanking punch includes a first working end face and a second working end face, the first working end face is provided with a larger waste unloading hole, and the second working end face is provided with a smaller waste unloading hole; the elastic unloading block matches the first working end face, and the elastic unloading block is connected to the upper die through a plug screw arranged on the upper die and passing through the elastic member.

[0004] However, in the prior art, general stamping dies are designed for the cavity types of parts with simple structures. When the processed parts are more complex and the surfaces present irregular shapes, the positions where the existing stamping dies apply the stamping pressure are relatively concentrated, which can easily lead to insufficient stamping pressure on the outer part of the parts. As a result, the elasticity and toughness of the processed material itself cause deformation of the outer part of the parts, resulting in the appearance of the produced parts not meeting the standards and failing to meet the use requirements. Summary of the invention

[0005] The purpose of the present invention is to provide a high-speed stamping die device based on the complex structure of an automobile, so as to solve the problem that the general stamping die proposed in the above background technology is designed for the cavity of parts with simple structures. When the processed parts are more complex and the surface presents an irregular shape, the position where the existing stamping die applies the stamping force is relatively concentrated, which easily leads to insufficient stamping force on the outer part of the part, thereby being affected by the elasticity and toughness of the processed material itself, causing the outer part of the part to deform, resulting in the appearance of the produced parts not meeting the standards and failing to meet the use requirements.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-speed stamping die device based on a complex structure of an automobile, comprising a base, an upper mold plate and a lower mold plate, wherein the bottom surface of the upper mold plate is provided with an upper mold core, and the top surface of the lower mold plate is provided with a lower mold core, and a mold core of an automobile part is formed by the cooperation of the upper mold core and the lower mold core, and a stamping transmission mechanism is provided between the upper mold plate and the upper mold core, and the stamping transmission mechanism comprises a middle pressure stabilizing component, a side pressure applying component and a top shaft component, and the middle pressure stabilizing component comprises a base, a lower top column and an upper top ring, and the outer side wall of the upper top ring A sealing ring is slidably connected, and the sealing ring is threadedly connected to the base, a spring 1 is arranged between the base and the upper top ring, the top shaft assembly includes a sleeve, a shaft core and a spring 2, the spring 2 is arranged on the outer side wall of the shaft core, the side pressure assembly is fixedly connected to the outer side wall of the sleeve, the side pressure assembly includes a first rotating rod and a second rotating rod, the first rotating rod is fixedly connected to the outer side wall of the sleeve, a pressure plate is arranged at the bottom end of the second rotating rod, the shaft core performs primary stamping on the upper mold core through the lower top column, and the sleeve performs secondary stamping on the upper mold core through the pressure plate.

[0007] Preferably, a suspension is provided on the outer side of the base, a hydraulic cylinder is fixedly installed on the bottom surface of the suspension, the output end of the hydraulic cylinder is fixedly connected to the upper template, the power source for mold stamping is the hydraulic cylinder arranged on the top, the hydraulic cylinder is suspended by the suspension, and directly provides stamping power to the upper template.

[0008] Preferably, positioning columns are installed at the four corners of the top surface of the base, and the upper template and the lower template are positioned by the positioning columns. The upper mold core and the lower mold core are positioned by four groups of positioning columns to ensure the accuracy of part molding. The higher the positioning accuracy, the less obvious the parting line is and the better the quality of the part is.

[0009] Preferably, a movable groove is provided on the top of the base, and a sealing cover is fixedly connected to the top of the base by screws. The overall structure of the movable groove is in the shape of a truncated cone, so as to adjust the position of the sealing ring in the movable groove.

[0010] Preferably, the inner wall of the movable groove is provided with an inner thread, the outer wall of the sealing ring is provided with an outer thread, the sealing ring is threadedly connected to the base, the base and the sealing ring are threadedly connected to adjust the assembly position, and the sealing ring can be adjusted to a height in the base by rotating the sealing ring.

[0011] Preferably, a slot is provided on the outer wall of the sealing ring, and the stamping stroke of the top ring is adjusted by rotating the sealing ring. By setting a slot on the outer wall of the sealing ring so as to cooperate with the tool, the sealing ring can be easily rotated from the outside by utilizing the lever principle, thereby controlling the rotation of the sealing ring.

[0012] Preferably, a sealing ring is provided between the upper mold core and the lower mold core, and the outer side walls of the spring one and the spring two are coated with a rust inhibitor. By providing a sealing ring, the integrity of the stamping forming of the parts is improved, and by applying a rust inhibitor on the outer sides of the spring one and the spring two, the service life of the mold can be improved.

[0013] Preferably, the bottom surface of the upper template is fixedly connected to a limiting column, and the limiting column is slidably connected to the first rotating rod. The first rotating rod is positioned by the limiting column so that the lower top column can move synchronously with the movement of the sleeve.

[0014] Preferably, the side walls of the upper mold core and the lower mold core are provided with exhaust holes, and rubber plugs are provided inside the exhaust holes. By arranging exhaust holes and rubber plugs on the upper mold core and the lower mold core, residual air can be exhausted when the parts are molded, thereby avoiding the formation of bubble defects in the parts and ensuring the quality of the produced automotive parts.

[0015] Preferably, a cooling channel is provided between the lower mold plate and the lower mold core, and the parts in the core are cooled and shaped through the cooling channel. A cooling channel is provided between the upper mold plate and the upper mold core, and a low-temperature liquid medium is introduced into the cooling channel to quickly absorb the heat of the parts, thereby increasing the part molding rate and effectively improving the production efficiency.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a stamping transmission mechanism is arranged between the upper mold plate and the upper mold core, and the sleeve design of the top shaft assembly is utilized to conduct secondary dispersion of the stamping force divided into the middle part and the stamping force delivered to the surrounding parts. The shaft sleeve squeezes the upper top ring and slides downward along the outer side wall of the lower top column. The shaft core is in fixed contact with the lower top column to provide a constant primary stamping force. The shaft sleeve and the shaft core slide relative to each other, so that the shaft sleeve drives the second rotating rod to stamp downward. The redundant pressure is utilized to stamp the pressure plate, and the secondary stamping force is provided to the surrounding parts of the parts, thereby providing a stamping force to maintain structural stability around the complex arched parts, and avoiding the problem of the parts not meeting the forming shape standards due to insufficient stamping force.

[0017] 2. In the present invention, by using a tool in cooperation with the notch of the sealing ring and utilizing the principle of a lever, the sealing ring can be easily moved to rotate from the outside, thereby controlling the rotation of the sealing ring, and utilizing the threaded connection cooperation mode between the base and the sealing ring to adjust the height of the sealing ring in the base, thereby controlling the stamping stroke of the top ring and adjusting the size of the secondary stamping force transferred to the outside of the part, so as to appropriately adjust according to different structural shapes, so that the mold can perform high-precision processing on different complex parts.

[0018] 3. In the present invention, exhaust holes and rubber plugs are provided on the upper mold core and the lower mold core so as to exhaust residual air during part molding, avoid the formation of bubble defects in the parts, ensure the quality of the produced automobile parts, and quickly absorb the heat of the parts by introducing a low-temperature liquid medium into the cooling channel to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a high-speed stamping die device based on a complex structure of an automobile according to the present invention; Figure 2 It is a structural schematic diagram of an upper mold plate and a lower mold plate in a high-speed stamping die device based on a complex structure of an automobile according to the present invention; Figure 3 It is a structural schematic diagram of a stamping transmission mechanism in a high-speed stamping die device based on a complex structure of an automobile according to the present invention; Figure 4 It is a schematic diagram of the internal structure of a stamping transmission mechanism in a high-speed stamping die device based on a complex structure of an automobile according to the present invention; Figure 5 This is a partial structural disassembly effect diagram of a middle pressure stabilizing component of a high-speed stamping die device based on a complex structure of an automobile according to the present invention; Figure 6 This is a front cross-sectional view of the middle pressure stabilizing component of a high-speed stamping die device based on a complex structure of an automobile according to the present invention. Figure 7 This is a working principle diagram of a high-speed stamping die device based on the complex structure of an automobile according to the present invention.

[0020] In the figure: 1. base; 2. upper template; 20. upper mold core; 3. lower template; 30. lower mold core; 4. positioning column; 5. hydraulic cylinder; 50. suspension; 6. stamping transmission mechanism; 61. middle pressure stabilizing assembly; 611. base; 612. lower ejector column; 613. upper ejector ring; 614. sealing ring; 615. movable groove; 616. sealing cover; 617. spring one; 62. side pressure assembly; 621. first rotating rod; 622. second rotating rod; 623. pressure plate; 624. limiting column; 63. ejector shaft assembly; 631. shaft sleeve; 632. shaft core; 633. spring two. DETAILED DESCRIPTION

[0021] 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 implementation regulations described 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.

[0022] Example: Refer to Figure 1 - Figure 7 As shown: a high-speed stamping die device based on a complex structure of an automobile, comprising a base 1, an upper mold plate 2 and a lower mold plate 3, the bottom surface of the upper mold plate 2 is provided with an upper mold core 20, the top surface of the lower mold plate 3 is provided with a lower mold core 30, and a core of an automobile part is formed by the cooperation of the upper mold core 20 and the lower mold core 30, a stamping transmission mechanism 6 is provided between the upper mold plate 2 and the upper mold core 20, the stamping transmission mechanism 6 comprises a middle pressure stabilizing component 61, a side pressure applying component 62 and a top shaft component 63, the middle pressure stabilizing component 61 comprises a base 611, a lower top column 612 and an upper top ring 613, the outer side wall of the upper top ring 613 is slidably connected with a sealing ring 614, and the sealing ring 614 is threaded with the base 611 The top shaft assembly 63 comprises a sleeve 631, a shaft core 632 and a spring 2 633, the spring 2 633 is arranged on the outer wall of the shaft core 632, the side pressure assembly 62 is fixedly connected to the outer wall of the sleeve 631, the side pressure assembly 62 comprises a first rotating rod 621 and a second rotating rod 622, the first rotating rod 621 is fixedly connected to the outer wall of the sleeve 631, a pressure plate 623 is arranged on the bottom end of the second rotating rod 622, the shaft core 632 performs primary stamping on the upper mold core 20 through the lower top column 612, and the sleeve 631 performs secondary stamping on the upper mold core 20 through the pressure plate 623.

[0023] Some automobile parts are processed and formed by stamping dies. Generally, stamping dies are designed for the cavity of parts with simple structures. For some complex automobile parts, such as parts with arched surfaces, the processed parts have irregular surfaces. When using existing stamping dies for processing, the location where the stamping force is applied is relatively concentrated, which can easily lead to insufficient stamping force on the outer part of the part, resulting in deformation of the outer part of the part due to the elasticity and toughness of the processed material itself, causing the part to fail to meet the automotive use standards.

[0024] In this embodiment, the part improved for the mold is that a stamping transmission mechanism 6 is arranged above the upper mold core 20. The stamping transmission mechanism 6 is divided into a middle pressure stabilizing component 61 for applying stamping pressure in the middle and a side pressure component 62 for applying stamping pressure on the side. The middle pressure stabilizing component 61 is used to provide stamping pressure for molding the overall part, and the side pressure component 62 provides a shaping stamping pressure for maintaining the shape of the part. The pressure of the middle pressure stabilizing component 61 and the side pressure component 62 is provided in two levels. When the upper mold plate 2 presses the upper mold core 20 downward, the shaft sleeve 631 drives the shaft core 632 to squeeze the upper top ring 613, and the initial part of the pressure is applied through the shaft sleeve 631 and the lower top column 612. Direct contact inheritance, after contact, the sleeve 631 squeezes the upper top ring 613 and slides downward along the outer wall of the lower top column 612. At this time, the shaft core 632 is fixedly contacted with the lower top column 612 to provide a constant primary punching force, and part of the punching force is transferred to the sleeve 631. The sleeve 631 and the shaft core 632 slide relative to each other, so that the sleeve 631 drives the second rotating rod 622 to punch downward, and the redundant pressure is used to punch the pressure plate 623. A multi-layer stacked elastic disc spring is arranged between the pressure plate 623 and the upper mold core 20 to provide a secondary punching force to the surrounding part of the part, and the part is punched and shaped from the edge of the part to ensure partial deformation when processing parts with complex structures.

[0025] according to Figure 1 As shown, a suspension 50 is provided on the outer side of the base 1, and a hydraulic cylinder 5 is fixedly installed on the bottom surface of the suspension 50. The output end of the hydraulic cylinder 5 is fixedly connected to the upper template 2. The power source for mold stamping is the hydraulic cylinder 5 arranged on the top. The hydraulic cylinder 5 is suspended by the suspension 50 to directly provide stamping power to the upper template 2.

[0026] according to Figure 2 As shown, positioning columns 4 are installed at the four corners of the top surface of the base 1. The upper template 2 and the lower template 3 are positioned by the positioning columns 4. The upper mold core 20 and the lower mold core 30 are positioned by four groups of positioning columns 4 to ensure the accuracy of part molding. The higher the positioning accuracy, the less obvious the parting line is and the better the quality of the part is.

[0027] according to Figure 6 As shown, a movable groove 615 is provided at the top of the base 611 , and a sealing cover 616 is fixedly connected to the top of the base 611 by screws. The overall structure of the movable groove 615 is a frustum shape, so as to adjust the position of the sealing ring 614 in the movable groove 615 .

[0028] according to Figure 5As shown, the inner wall of the movable groove 615 is provided with an inner thread, the outer wall of the sealing ring 614 is provided with an outer thread, the sealing ring 614 is threadedly connected to the base 611, and the base 611 and the sealing ring 614 are threadedly connected to adjust the assembly position, and the height of the sealing ring 614 in the base 611 can be adjusted by rotating the sealing ring 614.

[0029] according to Figure 5 As shown, a slot is provided on the outer wall of the sealing ring 614, and the stamping stroke of the upper ring 613 is adjusted by rotating the sealing ring 614. By providing a slot on the outer wall of the sealing ring 614 so as to cooperate with the tool, the sealing ring 614 can be easily rotated from the outside by utilizing the lever principle, thereby controlling the rotation of the sealing ring 614.

[0030] according to Figure 2 As shown, a sealing ring is provided between the upper mold core 20 and the lower mold core 30, and the outer side walls of the spring 1 617 and the spring 2 633 are coated with a rust inhibitor. The sealing ring is provided to improve the integrity of the stamping forming of the parts, and the service life of the mold can be improved by applying a rust inhibitor on the outer sides of the spring 1 617 and the spring 2 633.

[0031] according to Figure 4 As shown, the bottom surface of the upper template 2 is fixedly connected to a limiting column 624, and the limiting column 624 is slidably connected to the first rotating rod 621. The first rotating rod 621 is positioned by the limiting column 624, so that the lower top column 612 can move synchronously with the movement of the shaft sleeve 631.

[0032] according to Figure 2 As shown, the side walls of the upper mold core 20 and the lower mold core 30 are provided with exhaust holes, and rubber plugs are provided inside the exhaust holes. By providing exhaust holes and rubber plugs on the upper mold core 20 and the lower mold core 30, residual air can be exhausted during part molding to avoid bubble defects in the parts and ensure the quality of the produced automotive parts.

[0033] according to Figure 2 As shown, a cooling channel is provided between the lower mold plate 3 and the lower mold core 30. The parts in the core are cooled and formed through the cooling channel. A cooling channel is provided between the upper mold plate 2 and the upper mold core 20. By introducing a low-temperature liquid medium into the cooling channel, the heat of the parts can be quickly absorbed, thereby increasing the part molding rate and effectively improving the production efficiency.

[0034] The use method and working principle of the device: First, align the four positioning holes of the upper mold plate 2 and the upper mold core 20 with the positioning column 4, and use the hydraulic cylinder 5 to control the upper mold plate 2 and the upper mold core 20 to punch downward; Secondly, the upper mold core 20 and the lower mold core 30 are in contact with each other, and the internal mold cavity is sealed by a sealing ring. After the upper mold core 20 and the lower mold core 30 are in contact, the upper mold plate 2 and the upper mold core 20 are squeezed against each other, and part of the pressure is transmitted through the direct contact between the shaft sleeve 631 and the lower ejector column 612. The shaft core 632 is in fixed contact with the lower ejector column 612 to provide a constant primary punching force, which provides the main punching force for the parts inside the cavity. Finally, the sleeve 631 squeezes the top ring 613 to slide downward along the outer wall of the lower top column 612, and part of the stamping force is transferred to the sleeve 631. The sleeve 631 and the shaft core 632 slide relative to each other, so that the sleeve 631 drives the second rotating rod 622 to stamp downward, and the residual pressure is used to stamp the pressure plate 623 to squeeze the peripheral part of the part inward, providing pressure for shaping the part to avoid deformation of the part due to its own toughness rebound.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed stamping die device based on a complex structure of an automobile, comprising a base (1), an upper die plate (2) and a lower die plate (3), Features: The bottom surface of the upper mold plate (2) is provided with an upper mold core (20), and the top surface of the lower mold plate (3) is provided with a lower mold core (30). The upper mold core (20) and the lower mold core (30) cooperate to form a core of the automobile part. A stamping transmission mechanism (6) is provided between the upper mold plate (2) and the upper mold core (20). The stamping transmission mechanism (6) comprises a middle pressure stabilizing component (61), a side pressure applying component (62) and a top shaft component (63). The middle pressure stabilizing component (61) comprises a base (611), a lower top column (612) and an upper top ring (613). The outer side wall of the upper top ring (613) is slidably connected to a sealing ring (614). The sealing ring (614) is threadedly connected to the base (611). A sealing ring (614) is provided between the base (611) and the upper top ring (613). A spring 1 (617) is arranged, the top shaft assembly (63) comprises a shaft sleeve (631), a shaft core (632) and a spring 2 (633), the spring 2 (633) is arranged on the outer wall of the shaft core (632), the side pressure assembly (62) is fixedly connected to the outer wall of the shaft sleeve (631), the side pressure assembly (62) comprises a first rotating rod (621) and a second rotating rod (622), the first rotating rod (621) is fixedly connected to the outer wall of the shaft sleeve (631), a pressing plate (623) is arranged at the bottom end of the second rotating rod (622), the shaft core (632) performs primary stamping on the upper mold core (20) through the lower top column (612), and the shaft sleeve (631) performs secondary stamping on the upper mold core (20) through the pressing plate (623).

2. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: A suspension (50) is provided on the outside of the base (1), a hydraulic cylinder (5) is fixedly mounted on the bottom surface of the suspension (50), and an output end of the hydraulic cylinder (5) is fixedly connected to the upper template (2).

3. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: Positioning columns (4) are installed at the four corner positions of the top surface of the base (1), and the upper template (2) and the lower template (3) are positioned by means of the positioning columns (4).

4. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: A movable groove (615) is provided on the top of the base (611), and a cover (616) is fixedly connected to the top of the base (611) by means of screws.

5. A high-speed stamping die device based on a complex structure of an automobile according to claim 4, Features: An inner wall of the movable groove (615) is provided with an inner thread, an outer wall of the sealing ring (614) is provided with an outer thread, and the sealing ring (614) is threadedly connected to the base (611).

6. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: The outer side wall of the sealing ring (614) is provided with a notch, and the stamping stroke of the upper top ring (613) is adjusted by rotating the sealing ring (614).

7. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: A sealing ring is provided between the upper mold core (20) and the lower mold core (30), and the outer side walls of the spring 1 (617) and the spring 2 (633) are coated with a rust-proof agent.

8. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: The bottom surface of the upper template (2) is fixedly connected to a limiting column (624), and the limiting column (624) is slidably connected to the first rotating rod (621).

9. A high-speed stamping die device based on a complex structure of an automobile according to claim 1, Features: The side walls of the upper mold core (20) and the lower mold core (30) are both provided with exhaust holes, and rubber plugs are provided inside the exhaust holes.

10. A high-speed stamping die device based on a complex automobile structure according to claim 1, Features: A cooling channel is provided between the lower mold plate (3) and the lower mold core (30), and the parts inside the mold core are cooled and molded through the cooling channel.

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