A stamping process for automotive parts using auxiliary edge pressing.

Abstract

This invention relates to the field of automotive parts stamping technology, specifically to a stamping process for automotive parts using assisted edge pressing, comprising the following steps: activating a hydraulic cylinder to push the upper module downwards; the extrusion block presses against the first support rod, pushing the edge pressing ring block outwards to assist in edge pressing; the top block moves downwards, and the second support rod pushes the guide block to slide along the guide rod, pressing against the second spring; when the upper module moves to its lowest point, the bottom ring seat moves downwards, the gear drives the rotating ring block to rotate, and the cutting machine cuts off the excess edges of the part; after stamping is completed, the upper module moves upwards, the second spring pushes the guide block to slide back along the guide rod, the second support rod pushes the top block upwards, pushing the part out of the lower die groove, completing demolding. This invention guides the material by allowing the edge pressing ring block to expand outwards during stamping, preventing wrinkling and cracking of the part edges. Simultaneously, after stamping is completed, the top block moves upwards under the action of the second spring, pushing the part out of the lower die groove, automatically demolding.

Description

Technical Field

[0001] This invention relates to the field of automotive parts stamping technology, specifically to an automotive parts stamping process employing auxiliary edge pressing. Background Technology

[0002] Automotive parts refer to the components that make up the various units of a vehicle and all consumable materials that serve the vehicle. As a crucial part of the automotive industry, automotive parts are fundamental to its development. Against the backdrop of economic globalization and with new changes in the automotive industry, the global automotive parts industry is also showing new development trends.

[0003] Patent application number CN201921113120.7 discloses a stamping equipment for automotive parts using auxiliary edge pressing. The equipment includes a worktable, with a lower mold device fixedly connected to the center of the worktable. Columns are fixedly connected to both sides of the top of the worktable, and mounting columns are fixedly connected to the tops of the two columns. A hydraulic cylinder is fixedly connected to the center of each mounting column, and a hydraulic telescopic rod is fixedly connected to the output end of the hydraulic cylinder. A fixing block is fixedly connected to the bottom of the hydraulic telescopic rod, and an upper mold device is fixedly connected to the bottom of the fixing block. The auxiliary edge pressing end plate of this equipment can assist in pressing the edges of the parts, preventing wrinkling of the parts surface to varying degrees. Simultaneously, it can buffer the stamping pressure on the parts during stamping, avoiding breakage and improving the stamping quality.

[0004] The current mainstream solution generally uses a fixed auxiliary pressing end plate on the upper mold to assist in pressing the edge of the parts. The fixed auxiliary pressing end plate is difficult to guide the material flow, resulting in frequent defects such as wrinkling and cracking of the parts. At the same time, after pressing, the parts will stick to the lower mold and be difficult to remove, thus affecting the processing efficiency.

[0005] In view of this, we propose a stamping process for automotive parts that employs assisted edge pressing. Summary of the Invention

[0006] In order to overcome the defects in the prior art, the present invention aims to provide a stamping process for automotive parts using an auxiliary pressing device. When the upper module extrudes the raw material of the part, the pressing ring expands outward, guiding the raw material to extend outward during the stamping process. At the same time, after the stamping is completed, the ejector block pushes up, causing the part to disengage from the lower die groove, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A stamping process for automotive parts using assisted edge clamping includes the following steps:

[0009] S1. Place the raw materials of the parts on the top of the base and directly above the lower mold groove. Start the hydraulic cylinder to push the upper module down and squeeze the raw materials into the lower mold groove.

[0010] S2. During the extrusion of raw materials by the upper module, the extrusion block is squeezed and moves upward, which pushes the edge pressing ring block to move outward through several first support rods to assist in edge pressing.

[0011] S3. Simultaneously, during the stamping process of the raw material, the top block is squeezed and moves down, pushing the guide block to slide along the guide rod to squeeze the second spring through the second support rod.

[0012] S4. When the upper module moves down to the bottom, start the second motor to drive the threaded rod to rotate, thereby causing the bottom ring seat to move down until the cutting machine abuts against the top surface of the part. Start the first motor to drive the rotating ring block to rotate through the gear, and the cutting machine will rotate accordingly to cut the excess edges of the stamped part.

[0013] S5. The hydraulic cylinder drives the upper module to move upward. Under the action of elastic potential energy, the second spring pushes the guide block to slide back along the guide rod. Through the second support rod, the top block is pushed upward, pushing the parts to get out of the lower mold groove and completing the demolding.

[0014] As a further improvement to this technical solution, an equipment for this process is used for preparation. The equipment includes a base, an upper module slidably connected to the top of the base, an auxiliary pressing device installed on the upper module, a demolding device installed inside the base, and a cutting device slidably connected to the top of the base. A lower mold groove adapted to the upper module is opened at the center of the top surface of the base. A bracket is welded and fixed to the top surface of the base. A hydraulic cylinder is installed at the center of the top surface of the bracket. The output shaft of the hydraulic cylinder is connected to the top of the upper module.

[0015] The auxiliary pressing device includes several pressing ring blocks that are slidably connected to the top of the upper module and can form the same ring, an extrusion block that is movably inserted into the center of the bottom end of the upper module, a first support rod with its two ends respectively hinged to the bottom end of the pressing ring block and the side wall of the extrusion block, and a first spring set at the top of the extrusion block. The extrusion block moves upward and pushes the pressing ring block to spread outward through the first support rod to press the edge.

[0016] The demolding device includes a top block movably inserted into the base and extending its top end to the center of the bottom surface of the lower mold groove, several second support rods that are radially hinged to the side wall of the top block, several guide rods installed in the base, guide blocks slidably connected to the guide rods, and a second spring sleeved on the guide rods. The end of the second support rod away from the top block is hinged to the corresponding guide block. When the top block moves down, it pushes the guide block to squeeze the second spring through the second support rod.

[0017] The cutting device includes a bottom ring seat slidably connected to the top of the base, a rotating ring block rotatably connected to the top of the bottom ring seat, and a cutting machine mounted on the rotating ring block. The bottom ring seat moves down to a suitable position, and the rotating ring block rotates to drive the cutting machine to cut the excess edges of the parts.

[0018] The above design takes into account that during the edge pressing process of parts, the fixed upper die has difficulty guiding and pushing the material flow, which can lead to wrinkling and cracking of the parts. An auxiliary edge pressing device is installed on the upper die. When the upper module presses down on the part material, the extrusion block moves upward, compressing the first spring. This, along with the first support rod, pushes the edge pressing ring block to spread radially outward, guiding the material outward for edge pressing. This significantly reduces stress accumulation in the material during extrusion, preventing cracking. After stamping, the upper module moves upward, the first spring pushes the extrusion block downward, and the first support rod drives the edge pressing... The ring block moves back to facilitate cyclic stamping. Considering that the parts will stick to the lower die groove after pressing, a demolding device is set in the lower die groove. During the pressing process, the extrusion block moves down and pushes the guide block to slide along the guide rod through the second support rod, compressing the second spring. After the stamping is completed, the second spring releases its elastic potential energy, pushing the guide block back, and then pushing the extrusion block up through the second support rod, pushing the parts out of the lower die groove to complete the demolding. Finally, after the edge pressing is completed, the bottom ring seat moves down to the cutting machine to be close to the raw material. The rotating ring block rotates, driving the cutting machine to rotate and complete the cutting of the excess edges of the parts.

[0019] As a further improvement to this technical solution, the upper module has a second adjustment cavity for accommodating the auxiliary pressing device. Several limiting rods are welded and fixed on the top surface of the upper module, and a pressure-reducing spring is sleeved on the top of the limiting rod after it extends out of the bracket.

[0020] This feature includes a limit rod that restricts the movement of the upper module during its downward movement, and a pressure-reducing spring that slows down the stamping process of the upper module to prevent damage to components caused by excessively fast stamping.

[0021] As a further improvement to this technical solution, T-shaped sliders are welded and fixed on both sides of the first support rod on the bottom surface of the pressure ring block, and the top surface of the upper module is radially provided with a number of T-shaped grooves that are equal in number and correspond one-to-one with the T-shaped sliders.

[0022] The T-shaped slider and T-shaped groove that are adapted to this setting allow the pressure ring block to radiate outwards along the top surface of the upper module.

[0023] As a further improvement to this technical solution, a first regular polyhedron is welded and fixed to the side wall of the extrusion block. The number of faces of the first regular polyhedron is equal to the number of first support rods. A first hinge seat is welded and fixed to the center of each side of the first regular polyhedron. The first spring is sleeved on the protruding post on the top surface of the extrusion block.

[0024] As a further improvement to this technical solution, a second regular polyhedron is welded and fixed to the bottom end of the top block. The number of faces of the second regular polyhedron is equal to the number of second support rods. A second hinge seat is welded and fixed to the center of each side of the second regular polyhedron.

[0025] These two settings utilize the uniform distribution of the sides of the regular polygon to ensure that the auxiliary pressing device and the demolding device are in a stable and harmonious mechanical structure, resulting in a uniform distribution of force transmission.

[0026] As a further improvement to this technical solution, sliding rods are welded and fixed on both sides of the bracket, and a first adjustment cavity is opened inside the base.

[0027] This feature includes a slide bar for guiding the cutting device up and down, and a first adjustment cavity for installing the demolding device.

[0028] As a further improvement to this technical solution, a threaded rod is rotatably connected to one side of the bracket, and protrusions are welded and fixed to both opposite sidewalls of the bottom ring seat. A through hole adapted to the slide rod is opened on the protrusion, and a threaded hole adapted to it is opened on the protrusion on the side close to the threaded rod.

[0029] This setting allows the threaded rod to rotate, causing the bottom ring seat to move up and down along the slide rod.

[0030] As a further improvement to this technical solution, a second motor is installed on one side of the top of the bracket, and the output shaft of the second motor is coaxially connected to the threaded rod.

[0031] This setting provides power for the rotation of the threaded rod via a second motor.

[0032] As a further improvement to this technical solution, the outer wall of the rotating block is provided with an outer ring tooth, and a gear is provided on the protrusion on one side of the bottom ring seat. The gear meshes with the outer ring tooth, and a first motor is installed on the protrusion. The output shaft of the first motor is coaxially connected to the gear.

[0033] This setup involves the first motor rotating, which drives the gears to rotate, and through the meshing outer ring teeth, drives the rotating block to rotate, which in turn drives the cutting machine to rotate.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0035] 1. This automotive parts stamping process with auxiliary edge pressing involves activating a hydraulic cylinder to push the upper module downwards to press the raw material of the parts. During the stamping process, the extrusion block moves upwards and pushes the edge pressing ring block outwards through the first support rod, guiding the raw material to spread and pressing the edge. This avoids stress accumulation during the extrusion of the raw material, which can lead to wrinkling and cracking, thus improving the stamping quality.

[0036] 2. The automotive parts stamping process using auxiliary edge pressing involves pressing the top block downwards during the stamping process, pushing the guide block along the guide rod via the second support rod, and squeezing the second spring. After stamping is completed, the second spring releases its elastic potential energy, pushing the guide block back, and pushing the top block upwards via the second support rod, thereby pushing the parts out of the lower die groove, completing demolding, and improving processing efficiency.

[0037] 3. The stamping process for automotive parts that adopts auxiliary edge pressing involves starting the second motor to drive the threaded rod to rotate, which in turn moves the bottom ring seat down to the cutting machine to be close to the raw material. Then, the first motor is started to drive the gear to rotate, which in turn drives the rotating ring block to rotate through the meshing outer ring teeth, thereby driving the cutting machine to cut off the excess edges of the parts. Attached Figure Description

[0038] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0041] Figure 3 This is an exploded view of the overall structure of the present invention;

[0042] Figure 4 This is a cross-sectional view of the base structure of the present invention;

[0043] Figure 5 This is a cross-sectional view of the upper module structure of the present invention;

[0044] Figure 6 This is an exploded view of the auxiliary pressing device structure of the present invention;

[0045] Figure 7 This is an exploded view of the demolding device structure of the present invention;

[0046] Figure 8This is an exploded view of the cutting device structure of the present invention;

[0047] Figure 9 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0048] The meanings of the labels in the diagram are as follows:

[0049] 100. Base; 110. Support; 120. Lower mold groove; 130. First adjustment cavity; 140. Slide rod;

[0050] 200. Upper module; 210. Second adjustment chamber; 220. T-shaped slide; 230. Limiting rod;

[0051] 300. Auxiliary edge pressing device; 310. Edge pressing ring block; 311. T-shaped slider; 320. First support rod; 330. Extrusion block; 331. First regular polyhedron; 340. First spring;

[0052] 400, Demolding device; 410, Ejector block; 411, Second regular polyhedron; 420, Second support rod; 430, Guide block; 440, Guide rod; 450, Second spring;

[0053] 500. Cutting device; 510. Bottom ring seat; 511. Protrusion; 520. Rotary ring block; 521. Outer ring tooth; 530. Gear; 540. Cutting machine; 550. First motor; 560. Threaded rod; 570. Second motor;

[0054] 600. Pressure relief spring;

[0055] 700. Hydraulic cylinder. Detailed Implementation

[0056] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, and these should all be considered to fall within the scope of the invention. The terms "installation" and "connection" should be interpreted broadly, referring to direct connection or indirect connection through an intermediate medium.

[0057] The terms "central axis," "vertical," "horizontal," "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer" used herein to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of the invention, "a number" means two or more, unless otherwise explicitly specified.

[0058] Please see Figures 1-9 As shown, the present invention provides a technical solution.

[0059] A stamping process for automotive parts using assisted edge clamping includes the following steps:

[0060] S1. Place the raw material of the component on the top of the base 100 and place it directly above the lower mold groove 120. Start the hydraulic cylinder 700 to push the upper module 200 down and squeeze the raw material into the lower mold groove 120.

[0061] S2. During the extrusion of raw materials by the upper module 200, the extrusion block 330 is extruded and moves upward, and pushes the pressing ring block 310 outward through several first support rods 320 to assist in pressing the edge.

[0062] S3. Simultaneously, during the stamping process of the raw material, the extrusion block 410 is squeezed and the extrusion block 410 moves down, pushing the guide block 430 to slide along the guide rod 440 and squeeze the second spring 450 through the second support rod 420.

[0063] S4. When the upper module 200 moves down to the bottom, the second motor 570 is started, which drives the threaded rod 560 to rotate, thereby causing the bottom ring seat 510 to move down until the cutting machine 540 abuts against the top surface of the part. The first motor 550 is started, which drives the rotating block 520 to rotate through the gear 530. The cutting machine 540 rotates accordingly to cut the excess edges of the stamped part.

[0064] S5. The hydraulic cylinder 700 drives the upper module 200 to move upward. Under the action of elastic potential energy, the second spring 450 pushes the guide block 430 to slide back along the guide rod 440. The second support rod 420 pushes the top block 410 to move upward, pushing the parts to get out of the lower mold groove 120 and completing the demolding.

[0065] For details, please refer to Figure 1 and Figure 2As shown, the equipment used in this process is used for preparation. The equipment includes a base 100, an upper module 200 slidably connected to the top of the base 100, an auxiliary pressing device 300 installed on the upper module 200, a demolding device 400 installed inside the base 100, and a cutting device 500 slidably connected above the base 100. A lower mold groove 120 adapted to the upper module 200 is opened at the center of the top surface of the base 100. A bracket 110 is welded and fixed to the top surface of the base 100. A hydraulic cylinder 700 is installed at the center of the top surface of the bracket 110. The output shaft of the hydraulic cylinder 700 is connected to the top of the upper module 200. When the hydraulic cylinder 700 is activated, it pushes the upper module 200 down into the lower mold groove 120 to stamp the raw material of the part.

[0066] Please see Figure 6 As shown, the auxiliary pressing device 300 includes several pressing ring blocks 310 that are slidably connected to the top of the upper module 200 and can form the same ring; an extrusion block 330 that is movably inserted into the center of the bottom end of the upper module 200; a first support rod 320 that is hinged at both ends to the bottom end of the pressing ring block 310 and the side wall of the extrusion block 330, respectively; and a first spring 340 disposed at the top of the extrusion block 330. When the extrusion block 330 moves upward, it pushes the pressing ring block 310 outward to press the edge through the first support rod 320; when the upper module 200 presses down, it pushes the extrusion block 330 upward, compressing the first spring 340. The angle between the first support rod 320 and the horizontal plane increases, pushing the pressing ring block 310 outward to guide and press the raw material. When the upper module 200 is disengaged from the lower mold groove 120, the first spring 340 pushes the extrusion block 330 downward, and the pressing ring block 310 moves back through the first support rod 320.

[0067] Please see Figure 7 As shown, the demolding device 400 includes a top block 410 movably inserted into the base 100 with its top end extending out from the center of the bottom surface of the lower mold groove 120, several second support rods 420 radially hinged to the side walls of the top block 410, several guide rods 440 installed in the base 100, guide blocks 430 slidably connected to the guide rods 440, and a second spring 450 sleeved on the guide rods 440. The end of the second support rod 420 away from the top block 410 is hinged to the corresponding guide block 430. The upper module 200 moves downward, pushing the guide block 430 to compress the second spring 450 via the second support rod 420. This causes the top block 410 to move downward, and the guide block 430 to compress the second spring 450 via the second support rod 420. After stamping is completed and the upper module 200 is disengaged from the lower mold groove 120, the second spring 450 releases its elastic potential energy, pushing the guide block 430 to slide back. The top block 410 is then pushed upward via the second support rod 420, causing the part to disengage from the lower mold groove 120 and completing the demolding process.

[0068] Please see Figure 3 and Figure 8As shown, the cutting device 500 includes a bottom ring seat 510 slidably connected to the top of the base 100, a rotating ring block 520 rotatably connected to the top of the bottom ring seat 510, and a cutting machine 540 mounted on the rotating ring block 520. The bottom ring seat 510 moves down to a suitable position, and the rotating ring block 520 rotates to drive the cutting machine 540 to cut the excess edges of the parts.

[0069] For further details, please refer to Figure 6 As shown, a first regular polyhedron 331 is welded and fixed to the side wall of the extrusion block 330. The number of faces of the first regular polyhedron 331 is equal to the number of first support rods 320. A first hinge seat is welded and fixed at the center of each side of the first regular polyhedron 331. A first spring 340 is sleeved on the protrusion on the top surface of the extrusion block 330. Several edge-pressing ring blocks 310 are evenly hinged to the first regular polyhedron 331 through the corresponding first support rods 320, so that the force applied to the extrusion block 330 is evenly transmitted to the edge-pressing ring blocks 310 through the first support rods 320, causing the edge-pressing ring blocks 310 to spread outward.

[0070] For details, please refer to Figure 7 As shown, a second regular polyhedron 411 is welded and fixed to the bottom of the top block 410. The number of faces of the second regular polyhedron 411 is equal to the number of second support rods 420. A second hinge seat is welded and fixed to the center of each side of the second regular polyhedron 411. The force applied to the top block 410 is evenly transmitted to the guide block 430 through the second support rods 420, thereby compressing the second spring 450. At the same time, when the second spring 450 releases its elastic potential energy, the force of the released elastic potential energy is evenly transmitted to the top block 410 through the second support rods 420, causing the top block 410 to move upward and push the parts out of the lower mold groove 120, thus completing the demolding.

[0071] In addition, please see Figure 2 and Figure 5 As shown, the upper module 200 has a second adjustment cavity 210 for accommodating the auxiliary pressing device 300. Several limiting rods 230 are welded and fixed on the top surface of the upper module 200. The top of the limiting rods 230 extends out of the bracket 110 and is fitted with a pressure relief spring 600.

[0072] For further details, please refer to Figure 5 and Figure 6 As shown, T-shaped sliders 311 are welded and fixed to both sides of the first support rod 320 on the bottom surface of the pressing ring block 310. The top surface of the upper module 200 has a number of T-shaped grooves 220 that are equal in number and correspond one-to-one with the T-shaped sliders 311. The matching T-shaped sliders 311 and T-shaped grooves 220 allow the pressing ring block 310 to slide outward along the top of the upper module 200.

[0073] For details, please refer to Figure 4As shown, slide rods 140 are welded and fixed on both sides of the bracket 110. The slide rods 140 are used to guide the bottom ring seat 510 to move up and down. The base 100 has a first adjustment cavity 130 inside, which is used to install the demolding device 400.

[0074] It is worth noting that, please refer to Figure 8 and Figure 9 As shown, the outer wall of the rotating block 520 is provided with an outer ring tooth 521, and a gear 530 is provided on the protrusion 511 on one side of the bottom ring seat 510. The gear 530 meshes with the outer ring tooth 521. A first motor 550 is installed on the protrusion 511. The output shaft of the first motor 550 is coaxially connected with the gear 530. The first motor 550 drives the gear 530 to rotate, which in turn drives the rotating block 520 to rotate through the meshing outer ring tooth 521.

[0075] For further details, please refer to Figure 8 As shown, a threaded rod 560 is rotatably connected to one side of the bracket 110. Both opposite sidewalls of the bottom ring seat 510 are welded and fixed with protrusions 511. The protrusions 511 have through holes that match the slide rod 140. The protrusions 511 on the side closer to the threaded rod 560 have threaded holes that match it. The matching threaded holes cause the bottom ring seat 510 to slide up and down along the threaded rod 560 when the threaded rod 560 rotates.

[0076] For details, please refer to Figure 3 and Figure 8 As shown, a second motor 570 is installed on one side of the top of the bracket 110. The output shaft of the second motor 570 is coaxially connected to the threaded rod 560, and the second motor 570 provides power for the rotation of the threaded rod 560.

[0077] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A stamping process for automotive parts employing assisted edge pressing, characterized in that, Includes the following steps: S1. Place the raw materials of the parts on the top of the base and directly above the lower mold groove. Start the hydraulic cylinder to push the upper module down and squeeze the raw materials into the lower mold groove. S2. During the extrusion of raw materials by the upper module, the extrusion block is squeezed and moves upward, which pushes the edge pressing ring block to move outward through several first support rods to assist in edge pressing. S3. Simultaneously, during the stamping process of the raw material, the top block is squeezed and moves down, pushing the guide block to slide along the guide rod to squeeze the second spring through the second support rod. S4. When the upper module moves down to the bottom, start the second motor to drive the threaded rod to rotate, thereby causing the bottom ring seat to move down until the cutting machine abuts against the top surface of the part. Start the first motor to drive the rotating ring block to rotate through the gear, and the cutting machine will rotate accordingly to cut the excess edges of the stamped part. S5. The hydraulic cylinder drives the upper module to move upward. Under the action of elastic potential energy, the second spring pushes the guide block to slide back along the guide rod. The second support rod pushes the top block to move upward, pushing the parts to get out of the lower mold groove and completing the demolding. The equipment used in this process includes a base, an upper module slidably connected to the top of the base, an auxiliary pressing device mounted on the upper module, a demolding device installed inside the base, and a cutting device slidably connected above the base. The equipment is characterized in that: a lower mold groove adapted to the upper module is formed at the center of the top surface of the base; a bracket is welded and fixed to the top surface of the base; a hydraulic cylinder is installed at the center of the top surface of the bracket; and the output shaft of the hydraulic cylinder is connected to the top of the upper module. The auxiliary pressing device includes several pressing ring blocks that are slidably connected to the top of the upper module and can form the same ring, an extrusion block that is movably inserted into the center of the bottom end of the upper module, a first support rod with its two ends respectively hinged to the bottom end of the pressing ring block and the side wall of the extrusion block, and a first spring set at the top of the extrusion block. The extrusion block moves upward and pushes the pressing ring block to spread outward through the first support rod to press the edge. The demolding device includes a top block movably inserted into the base and extending its top end to the center of the bottom surface of the lower mold groove, several second support rods that are radially hinged to the side wall of the top block, several guide rods installed in the base, guide blocks slidably connected to the guide rods, and a second spring sleeved on the guide rods. The end of the second support rod away from the top block is hinged to the corresponding guide block. When the top block moves down, it pushes the guide block to squeeze the second spring through the second support rod. The cutting device includes a bottom ring seat slidably connected to the top of the base, a rotating ring block rotatably connected to the top of the bottom ring seat, and a cutting machine mounted on the rotating ring block. The bottom ring seat moves down to a suitable position, and the rotating ring block rotates to drive the cutting machine to cut the excess edges of the parts. The upper module has a second adjustment cavity for accommodating the auxiliary pressing device. Several limiting rods are welded and fixed to the top surface of the upper module. After the top of the limiting rod extends out of the bracket, a pressure-reducing spring is sleeved on it. The bottom surface of the pressing ring block is welded and fixed with T-shaped sliders on both sides of the first support rod. The top surface of the upper module is radially provided with a number of T-shaped grooves that are equal in number to the number of T-shaped sliders and whose positions correspond one-to-one. A first regular polyhedron is welded and fixed to the side wall of the extrusion block. The number of faces of the first regular polyhedron is equal to the number of first support rods. A first hinge seat is welded and fixed to the center of each side of the first regular polyhedron. The first spring is sleeved on the protruding post on the top surface of the extrusion block.

2. The stamping process for automotive parts using auxiliary edge pressing as described in claim 1, characterized in that: A second regular polyhedron is welded and fixed to the bottom of the top block. The number of faces of the second regular polyhedron is equal to the number of second support rods. A second hinge seat is welded and fixed to the center of each side of the second regular polyhedron.

3. The stamping process for automotive parts using auxiliary edge pressing as described in claim 2, characterized in that: The bracket has sliding rods welded and fixed on both sides, and the base has a first adjustment cavity inside.

4. The stamping process for automotive parts using auxiliary edge pressing as described in claim 3, characterized in that: A threaded rod is rotatably connected to one side of the bracket, and protrusions are welded and fixed to both opposite sidewalls of the bottom ring seat. A through hole adapted to the slide rod is opened on the protrusion, and a threaded hole adapted to the slide rod is opened on the protrusion on the side closer to the threaded rod.

5. The stamping process for automotive parts using auxiliary edge pressing as described in claim 4, characterized in that: A second motor is installed on one side of the top of the bracket, and the output shaft of the second motor is coaxially connected to the threaded rod.

6. The stamping process for automotive parts using auxiliary edge pressing as described in claim 5, characterized in that: The outer wall of the rotating block is provided with outer ring teeth, and a gear is provided on the protrusion on one side of the bottom ring seat. The gear meshes with the outer ring teeth, and a first motor is installed on the protrusion. The output shaft of the first motor is coaxially connected with the gear.

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