Stamping die for sheet metal parts of automobile die

Abstract

The invention discloses an automobile die sheet metal part stamping die, and particularly relates to the technical field of sheet metal combined machining, the automobile die sheet metal part stamping die comprises a V-shaped bottom die, a controller, a corner combined roller and a corner slope linkage combined machining assembly; the corner slope linkage combined machining assembly comprises a V-shaped machining groove, a male die strip, an arc die strip and a slope combined roller. Through the corner slope linkage combined machining assembly and the sharp groove trepanning combined assembly, three combined machining operations of sharp end grooving, trepanning and right inclined plane arc-shaped protruding can be synchronously conducted on the bottom of a corner of an automobile sheet metal part raw material, and during dynamic corner slope linkage combined machining, the corner and the inclined plane are synchronously matched and adjusted; and the production progress and efficiency are greatly improved, and the adaptability of machining to complex requirements is greatly improved, so that the problems that diversified production tasks are difficult to fully meet, the production progress is slowed down due to adjustment difficulty, and the unnecessary production cost is increased are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal assembly processing, and more particularly to a stamping die for a sheet metal part of an automobile die. Background Art

[0002] In the intelligent manufacturing equipment industry, the combined stamping die for automobile mold sheet metal parts plays a vital role. It is a key process for achieving efficient and precise production in the automobile manufacturing process. Its specific use is to achieve high-precision forming of complex shapes and to perform combined processing on automobile sheet metal parts. These features can be produced at one time to ensure dimensional accuracy and shape consistency.

[0003] Among the existing published technical documents, patent publication number CN111438531A discloses a dual-station continuous stamping die for sheet metal parts. This technology utilizes a hollow motor fixed to the left end of a sliding chamber, with the front and rear ends of the hollow motor connected to a rotating member. This invention provides a dual-station continuous stamping die for sheet metal parts, utilizing a single die to achieve continuous processing of two sheet metal parts, improving sheet metal processing efficiency while reducing the cost of separate processing using two dies. However, this technology has the following drawbacks.

[0004] During the stamping and combination processing of automotive mold sheet metal parts, facing the combination processing requirements of different models, the corners and inclined surfaces of the sheet metal parts need to be processed in a diversified combination. However, synchronous adjustment is extremely difficult at present. This not only greatly limits the adaptability of processing to various complex needs and makes it difficult to fully meet diversified production tasks, but also affects product quality and consistency due to the difficulty in accurately adapting to different models. At the same time, adjustment difficulties will slow down production progress, extend production cycles, and increase unnecessary production costs. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a stamping die for sheet metal parts of an automobile mold, comprising a V-shaped bottom die and a controller, wherein a corner combination roller is rotatably connected at the internal corner position of the V-shaped bottom die, and the outer wall of the corner combination roller is provided with a corner bevel linkage combination processing component; the corner bevel linkage combination processing component comprises a V-shaped processing groove fixedly arranged on the outer wall of the corner combination roller, a punch strip is provided on one side of the V-shaped processing groove, and an arc die strip is provided on one side of the punch strip, and the arc die strip and the punch strip are both fixedly connected to the corner combination roller, and an inclined surface of the inner wall of the V-shaped bottom die is rotatably connected to the bevel combination roller; the outer wall of the bevel combination roller is fixedly provided with an arc groove, a V-shaped concave strip is provided on one side of the arc groove, and an arc convex strip is provided on one side of the V-shaped concave strip.

[0006] Preferably, the V-shaped processing groove, the male mold strip and the arc mold strip are arranged in a circumferential distribution, and the outer wall of the male mold strip is chamfered. The arc groove, the V-shaped concave strip and the arc convex strip are arranged in a circumferential distribution, and the outer wall of the arc convex strip is an arc surface. Preferably, the inner wall of the V-shaped processing groove is provided with a pointed groove opening combination component; the pointed groove opening combination component includes a plurality of pointed blocks arranged on the inner wall of the V-shaped processing groove, the pointed blocks are fixedly connected to the corner combination rollers to which the V-shaped processing groove belongs, one side of the pointed block is fixedly connected to a pillar, and one end of the pillar is fixedly connected to a connecting block; the upper surface of the connecting block is fixedly connected to a cutter head. The vertical cross-section of the pointed block is polygonal, and the vertical cross-section of the pillar is circular.

[0007] During use, the automotive sheet metal part is placed within the positioning frame, with the corner and bevel rollers stationary. The corner of the sheet metal part enters the V-shaped processing groove, and multiple pointed blocks create a pointed groove at the bottom of the corner. The support stably supports the connecting block, which in turn stably supports the cutting head, which then cuts the hole in the corner of the sheet metal part. The right-hand inclined surface of the sheet metal part is then pressed into the curved groove to form a curved protrusion. Alternatively, when the angle sensor senses a 120-degree angle, the corner rollers drive the arc-shaped die strip to rotate to the corner of the V-shaped processing groove, while the bevel rollers drive the arc-shaped convex strip to the inclined surface of the V-shaped processing groove. Alternatively, when the angle sensor senses a 240-degree angle, the corner rollers drive the convex die strip to rotate counterclockwise to the corner of the V-shaped processing groove, while the bevel rollers drive the concave V-shaped strip to rotate counterclockwise to the right inclined surface of the V-shaped processing groove.

[0008] Preferably, one end of the corner combination roller is fixedly connected to the center of the circle with a tilt linkage assembly; the tilt linkage assembly includes a corner gear shaft, a corner rack, a connecting column, a bevel rack, a bevel gear shaft, a bevel block, a linkage electric cylinder and an angle sensor.

[0009] The corner gear shaft is fixed to one end of the corner combination roller, the corner rack meshes and drives with the outer wall of the corner gear shaft, the bottom end of the connecting column is fixed to the top of the corner rack, the bevel rack is fixed to the top of the connecting column, the bevel gear shaft meshes and drives with the inclined surface above the bevel rack, the bevel gear shaft is fixedly connected concentrically with the bevel combination roller, the bevel block is fixed to the lower inclined surface of the bevel rack, the linkage electric cylinder is mounted on the lower inclined surface of the bevel block, the outer wall of the linkage electric cylinder is fixedly connected to the V-shaped bottom mold, and the angle sensor is mounted on one end of the corner gear shaft. The angle sensor is used to sense the rotation angle of the corner gear shaft; both the linkage electric cylinder and the angle sensor are electrically connected to a controller. The top of the bevel rack is higher than the top of the corner rack, and both the bevel rack and the corner rack are slidably connected to the V-shaped bottom mold. The bevel block and the bevel rack are perpendicularly arranged and slidably connected to the V-shaped bottom mold. The outer wall of the angle sensor is fixedly connected with a shell, and the shell is fixedly connected to the V-shaped bottom mold.

[0010] When this technology is in use, the housing supports the angle sensor, and the linked electric cylinder pushes the bevel block upward. The bevel rack drives the bevel gear shaft to rotate counterclockwise, which in turn drives the bevel combination roller counterclockwise. The connecting column drives the corner rack upward, while the corner gear shaft simultaneously drives the corner combination roller to rotate counterclockwise in the corner area of ​​the V-shaped bottom mold.

[0011] Preferably, a positioning frame is fixedly connected to the upper surface of the V-shaped bottom die; a sleeve plate is fixedly connected to the upper surface of the positioning frame; a stamping cylinder is fixedly mounted on the upper surface of the sleeve plate; the output end of the stamping cylinder is fixedly connected to the processing upper die; the controller is fixedly located on the outer wall of the sleeve plate; guide posts are provided on both sides of the stamping cylinder; both guide posts are slidably connected to the sleeve plate; and both guide posts are fixedly connected to the processing upper die. The output end of the stamping cylinder is slidably connected to the sleeve plate, and the stamping cylinder and the controller are electrically connected.

[0012] When this technology is in use, the output end of the stamping electric cylinder moves downward along the inner wall of the sleeve, and the output end of the stamping electric cylinder drives the processing upper die to move downward. The two guide columns move downward synchronously, and the guide columns slide downward along the inner wall of the sleeve. The processing upper die can process the raw materials of the automobile sheet metal into the V-shaped bottom die for forming.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention can carry out a variety of combined processing for the corners and inclined surfaces of automobile sheet metal parts through the corner bevel linkage combined processing component and the sharp groove opening combined component. In the fixed sharp groove opening combination link of the automobile sheet metal part, with the help of a specific structural arrangement, the three combined processing operations of sharp groove opening, opening and arc-shaped protrusion of the right inclined surface can be simultaneously performed on the bottom of the corner of the automobile sheet metal part raw material. During the dynamic corner bevel linkage combined processing, when it is 120 degrees, the corner part of the automobile sheet metal part contacts the arc mold strip to form an inner arc surface, and the right inclined surface of the automobile sheet metal part contacts the arc convex strip to form a convex inner arc shape. When it is 240 degrees, the corner part of the automobile sheet metal part forms a bottom arc surface, and the right inclined surface of the automobile sheet metal part is in a V-shaped inner groove state formed by a V-shaped concave strip, which fully meets the combined processing requirements of different models. At the same time, the corners and inclined surfaces are synchronously matched and adjusted, which greatly improves the production progress and greatly enhances the adaptability of processing to complex requirements.

[0015] 2. The present invention has great difficulties in adopting the previous synchronous adjustment, which is difficult to accurately adapt to different models, seriously affecting product quality and consistency. The present technology uses an angle sensor to realize angle sensing of the corner gear shaft, and accurately controls the synchronous rotation angle of the corner combination roller and the bevel combination roller to ensure that under different combination processing states, all parts of the automobile sheet metal can be accurately formed. For example, under different angle settings of one hundred and twenty degrees and two hundred and forty degrees, the corner area inside the V-shaped bottom mold can switch to different combination processing shapes, and the inclined surface area on the right side of the V-shaped bottom mold can be synchronously switched to match the corresponding combination processing shape. The corner parts and inclined surfaces of the automobile sheet metal parts can accurately contact the corresponding molds, thereby forming a shape that meets the requirements, effectively avoiding product defects caused by adaptation problems, and effectively ensuring product quality and consistency.

[0016] 3. The present invention adopts an inclined linkage component to push the bevel block through a linkage electric cylinder, so that the bevel rack and the corner rack are synchronously tilted and moved upward, and the bevel gear shaft, the bevel combination roller, and the corner gear shaft and the corner combination roller realize synchronous linkage rotation, which can quickly switch between different combination processing shapes without the need for tedious area adjustments one by one, greatly shortening the production preparation time, speeding up the production progress, shortening the production cycle, reducing unnecessary waiting and resource waste caused by adjustment difficulties, thereby effectively reducing production costs and improving the economic benefits of combination processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the automobile mold sheet metal stamping die of the present invention.

[0018] Figure 2 It is a schematic diagram of the split structure of the V-shaped bottom mold and the outer shell of the present invention.

[0019] Figure 3It is a schematic diagram of the partial structure of the connection between the connecting column and the corner rack of the present invention.

[0020] Figure 4 This is a schematic diagram of the partial structure of the connection between the corner combination roller and the corner gear shaft of the present invention.

[0021] Figure 5 This is a schematic diagram of the partial structure of the connection between the V-shaped bottom mold and the linked electric cylinder of the present invention.

[0022] Figure 6 This is a schematic diagram of the partial structure of the inclined composite roller according to the present invention.

[0023] Figure 7 This is a schematic diagram of the main structure of the pointed slot opening combination component of the present invention.

[0024] Figure 8 This is a schematic diagram of the main structure of the tilt linkage assembly of the present invention.

[0025] Figure 9 It is a schematic diagram of the partial structure of the connection between the V-shaped bottom mold and the positioning frame of the present invention.

[0026] The accompanying drawings are marked as follows: 1. V-shaped bottom die; 2. Corner combination roller; 3. V-shaped processing groove; 4. Punch strip; 5. Arc die strip; 6. Bevel combination roller; 7. Arc groove; 8. V-shaped concave strip; 9. Arc convex strip; 10. Point block; 11. Pillar; 12. Connecting block; 13. Cutter head; 14. Corner gear shaft; 15. Corner rack; 16. Connecting column; 17. Bevel rack; 18. Bevel gear shaft; 19. Bevel block; 20. Linked electric cylinder; 21. Angle sensor; 22. Housing; 23. Sleeve plate; 24. Stamping electric cylinder; 25. Controller; 26. Guide column; 27. Processing upper die; 28. Positioning frame. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] As attached Figure 1 - Attachment Figure 9A stamping die for sheet metal parts of an automobile mold is shown. The stamping die for sheet metal parts of the automobile mold is provided with a corner bevel linkage combination processing component, a sharp groove opening combination component and an inclined linkage component. The setting of each component can simultaneously achieve the three combined processing operations of sharp groove opening, opening and side arc protrusion in the fixed sharp groove opening combination link. During dynamic combination, the corner part of the automobile sheet metal part contacts the arc mold strip 5 to form an inner arc surface, the inclined surface is an arc convex strip 9 protruding inner arc shape, or the corner area forms a bottom arc surface, and the right side inclined surface is a V-shaped inner groove state formed by a V-shaped concave strip 8, which fully meets the combination processing requirements of different models and greatly improves the adaptability of processing to complex requirements. The specific structural settings of each component are as follows.

[0029] In this embodiment, as shown in the attached Figure 1 - Attachment Figure 6 As shown, a corner combination roller 2 is rotatably connected to the inner corner of the V-shaped bottom die 1. The outer wall of the corner combination roller 2 is equipped with a corner bevel linkage combined processing assembly. The corner bevel linkage combined processing assembly includes a V-shaped processing groove 3 fixedly mounted on the outer wall of the corner combination roller 2. A punch strip 4 is provided on one side of the V-shaped processing groove 3, and an arc mold strip 5 is provided on one side of the punch strip 4. Both the arc mold strip 5 and the punch strip 4 are fixedly connected to the corner combination roller 2. A bevel combination roller 6 is rotatably connected to an inclined surface of the inner wall of the V-shaped bottom die 1. The outer wall of the bevel combination roller 6 is fixedly provided with an arc groove 7, and a V-shaped concave strip 8 is provided on one side of the arc groove 7. An arc convex strip 9 is provided on one side of the V-shaped concave strip 8. The V-shaped concave strip 8 is provided on one side of the V-shaped concave strip 8. The V-shaped processing groove 3, the punch strip 4, and the arc mold strip 5 are arranged in a circumferential arrangement. The outer wall of the punch strip 4 is rounded. The arc groove 7, the V-shaped concave strip 8, and the arc convex strip 9 are arranged in a circumferential arrangement. The outer wall of the arc convex strip 9 is a circular surface.

[0030] In this embodiment, as shown in the attached Figure 4 - Attachment Figure 7 As shown, the inner wall of the V-shaped processing groove 3 is provided with a pointed groove hole opening assembly; the pointed groove hole opening assembly includes a plurality of pointed blocks 10 arranged on the inner wall of the V-shaped processing groove 3. The pointed blocks 10 are fixedly connected to the corner assembly roller 2 to which the V-shaped processing groove 3 belongs. A support 11 is fixedly connected to one side of the pointed block 10, and a connecting block 12 is fixedly connected to one end of the support 11. A cutting head 13 is fixedly connected to the upper surface of the connecting block 12. The vertical cross-section of the pointed block 10 is polygonal, and the vertical cross-section of the support 11 is circular. This allows the corner assembly roller 2 to support the pointed block 10, the pointed block 10 supports the support 11, the support 11 supports the connecting block 12, and the connecting block 12 supports the cutting head 13. The plurality of pointed blocks 10 perform pointed grooves at the bottom of the corner of the automotive sheet metal raw material. At the same time, the support 11 can stably support the connecting block 12, and the connecting block 12 can stably support the cutting head 13. The cutting head 13 performs hole opening at the corner of the automotive sheet metal raw material.

[0031] In this embodiment, as shown in the attached Figure 3- Attachment Figure 8 As shown, one end of the corner combination roller 2 is fixedly connected to the center of the circle with a tilt linkage assembly; the tilt linkage assembly includes a corner gear shaft 14, a corner rack 15, a connecting column 16, a bevel rack 17, a bevel gear shaft 18, a bevel block 19, a linkage electric cylinder 20 and an angle sensor 21. The corner gear shaft 14 is fixed on one end of the corner combination roller 2, the corner rack 15 is meshingly connected to the outer wall of the corner gear shaft 14, the bottom end of the connecting column 16 is fixed at the top of the corner rack 15, the bevel rack 17 is fixed at the top of the connecting column 16, the bevel gear shaft 18 is meshingly transmitted on the inclined surface above the bevel rack 17, the bevel gear shaft 18 is fixedly connected coaxially with the bevel combination roller 6, the bevel block 19 is fixed on the lower inclined surface of the bevel rack 17, the linkage electric cylinder 20 is installed on the lower inclined surface of the bevel block 19, the outer wall of the linkage electric cylinder 20 is fixedly connected to the V-shaped bottom mold 1, and the angle sensor 21 is installed on one end of the corner gear shaft 14.

[0032] The angle sensor 21 senses the rotation angle of the corner gear shaft 14. The linked electric cylinder 20 and the angle sensor 21 are both electrically connected to the controller 25. The top of the bevel rack 17 is higher than the top of the corner rack 15. Both the bevel rack 17 and the corner rack 15 are slidably connected to the V-shaped bottom mold 1. The bevel block 19 is perpendicularly positioned between the bevel rack 17 and is slidably connected to the V-shaped bottom mold 1. The outer wall of the angle sensor 21 is fixedly connected to the housing 22, which is also fixedly connected to the V-shaped bottom mold 1.

[0033] In this embodiment, as shown in the attached Figure 9 As shown, a positioning frame 28 is fixedly connected to the upper surface of the V-shaped bottom die 1; a sleeve plate 23 is fixedly connected to the upper surface of the positioning frame 28, and a stamping cylinder 24 is fixedly mounted on the upper surface of the sleeve plate 23. The output end of the stamping cylinder 24 is fixedly connected to the processing upper die 27. A controller 25 is fixedly located on the outer wall of the sleeve plate 23. Guide posts 26 are provided on both sides of the stamping cylinder 24. Both guide posts 26 are slidably connected to the sleeve plate 23 and fixedly connected to the processing upper die 27. The output end of the stamping cylinder 24 is slidably connected to the sleeve plate 23, and the stamping cylinder 24 and the controller 25 are electrically connected.

[0034] The working principle of the automobile mold sheet metal stamping die of the present invention is as follows:

[0035] Example 1:

[0036] When the present invention performs a fixed pointed groove opening combination, the automobile sheet metal raw material is placed inside the positioning frame 28, the corner combination roller 2 is kept fixed, and the bevel combination roller 6 is kept fixed. In this way, an arc groove 7 will exist at the inclined surface position of the V-shaped processing groove 3 to form an arc groove shape, and the V-shaped processing groove 3 on the corner combination roller 2 forms a corner V-shaped groove body.

[0037] The controller 25 activates the punching cylinder 24, and the output end of the punching cylinder 24 moves downward along the inner wall of the sleeve 23. The output end of the punching cylinder 24 drives the processing upper die 27 downward, and the processing upper die 27 drives the two guide pillars 26 to move downward synchronously. The guide pillars 26 slide downward along the inner wall of the sleeve 23, so that the processing upper die 27 can process the automobile sheet metal material into the V-shaped bottom die 1 for forming. The corner of the automobile sheet metal material enters the V-shaped processing groove 3, and at the same time, multiple pointed blocks 10 perform tip grooves on the bottom of the corner of the automobile sheet metal material. At the same time, the support 11 can stably support the connecting block 12, and the connecting block 12 stably supports the cutter head 13. The cutter head 13 performs a hole in the corner of the automobile sheet metal material. The right inclined surface of the automobile sheet metal material is squeezed into the arc groove 7 to form an arc-shaped protrusion, performing a combination of tip groove grooving, hole opening, and side arc protrusion processing.

[0038] Example 2:

[0039] First, when the present invention performs tilt linkage, the V-shaped bottom mold 1 supports the housing 22, and the housing 22 supports the angle sensor 21. The controller 25 activates the linkage electric cylinder 20, which pushes the bevel block 19 to tilt upward. The bevel block 19 drives the bevel rack 17 to tilt upward. The bevel rack 17 drives the bevel gear shaft 18 to rotate counterclockwise. The bevel gear shaft 18 drives the bevel combination roller 6 to rotate counterclockwise. At the same time, the bevel rack 17 drives the connecting column 16 to tilt upward. The connecting column 16 drives the corner rack 15 to tilt upward. The corner rack 15 drives the corner gear shaft 14 to rotate counterclockwise. At the same time, the corner gear shaft 14 will synchronously drive the corner combination roller 2 to rotate counterclockwise in the corner area of ​​the V-shaped bottom mold 1. The angle sensor 21 is used to sense the angle of the corner gear shaft 14. When the angle value sensed by the angle sensor 21 is 120 degrees, or when the angle value sensed by the angle sensor 21 is 240 degrees, the angle sensor 21 senses the angle of the corner gear shaft 14.

[0040] Secondly, when the present invention performs dynamic corner bevel linkage combined processing, when the angle sensed by the angle sensor 21 is 120 degrees, the arc mold strip 5 is driven by the corner combination roller 2 to rotate to the corner area of ​​the V-shaped processing groove 3, and the bevel combination roller 6 drives the arc convex strip 9 to be located on the inclined surface of the V-shaped processing groove 3. The stamping electric cylinder 24 is activated by the controller 25, and the stamping electric cylinder 24 drives the processing upper die 27 to move downward. The processing upper die 27 extrude and bends the automobile sheet metal material from the inside of the positioning frame 28 into the V-shaped processing groove 3 inside the V-shaped bottom die 1. At the same time, the corner part of the automobile sheet metal material contacts the arc mold strip 5 to form an inner arc surface, and the inclined surface of the automobile sheet metal material is the inner arc shape of the arc convex strip 9.

[0041] Alternatively, when the angle sensed by the angle sensor 21 is 240 degrees, the corner combination roller 2 drives the punch strip 4 to rotate counterclockwise to the corner area of ​​the V-shaped processing groove 3, and the bevel combination roller 6 drives the V-shaped concave strip 8 to rotate counterclockwise to the right inclined surface of the V-shaped processing groove 3. The corner combination roller 2 can be synchronously linked in the corner area and the bevel combination roller 6 can be synchronously linked in the inclined surface area of ​​the V-shaped processing groove 3. After the combination, the controller 25 starts the stamping electric cylinder 24, which pushes the processing upper die 27 downward. The stressed corner part of the automobile sheet metal raw material is pressed and contacted with the arc surface of the arc die strip 5, forming a bottom arc surface in the corner area of ​​the automobile sheet metal raw material. At the same time, the right inclined surface of the automobile sheet metal raw material is pressed and contacted with the inner wall of the V-shaped concave strip 8, forming the right inclined surface of the automobile sheet metal raw material into a V-shaped inner groove state. In this way, the internal corner area of ​​the V-shaped bottom die 1 can switch to different combined processing shapes, and the right inclined surface area of ​​the V-shaped bottom die 1 can be synchronously switched to match the corresponding combined processing shape.

[0042] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stamping die for sheet metal parts of an automobile mold, comprising a V-shaped bottom die (1) and a controller (25), wherein a corner combination roller (2) is rotatably connected at an inner corner position of the V-shaped bottom die (1), and characterized in that: The outer wall of the corner combination roller (2) is provided with a corner bevel linkage combination processing component; The corner bevel linkage combined processing assembly comprises a V-shaped processing groove (3) fixedly arranged on the outer wall of the corner combination roller (2); a punch strip (4) is provided on one side of the V-shaped processing groove (3); and an arc mold strip (5) is provided on one side of the punch strip (4); the arc mold strip (5) and the punch strip (4) are both fixedly connected to the corner combination roller (2); and an inclined surface of the inner wall of the V-shaped bottom mold (1) is rotatably connected to the bevel combination roller (6); An arcuate groove (7) is fixedly provided on the outer wall of the inclined surface combination roller (6), a V-shaped concave strip (8) is provided on one side of the arcuate groove (7), and an arcuate convex strip (9) is provided on one side of the V-shaped concave strip (8).

2. The automotive sheet metal stamping die according to claim 1, characterized in that: The V-shaped processing groove (3), the punch strip (4) and the arc mold strip (5) are arranged in a circumferential distribution, and the outer wall of the punch strip (4) is rounded.

3. The automotive sheet metal stamping die according to claim 1, characterized in that: The arc-shaped grooves (7), the V-shaped concave strips (8) and the arc-shaped convex strips (9) are arranged in a circumferential distribution, and the outer wall of the arc-shaped convex strips (9) is an arc surface.

4. The automotive sheet metal stamping die according to claim 1, characterized in that: The inner wall of the V-shaped processing groove (3) is provided with a sharp groove opening assembly; The pointed groove opening assembly comprises a plurality of pointed blocks (10) arranged on the inner wall of the V-shaped processing groove (3), the pointed blocks (10) being fixedly connected to the corner combination roller (2) to which the V-shaped processing groove (3) belongs, one side of the pointed blocks (10) being fixedly connected to a support (11), and one end of the support (11) being fixedly connected to a connecting block (12); A cutter head (13) is fixedly connected to the upper surface of the connecting block (12).

5. The automotive sheet metal stamping die according to claim 4, characterized in that: The vertical cross-section of the pointed block (10) is polygonal, and the vertical cross-section of the pillar (11) is circular.

6. The automotive sheet metal stamping die according to claim 1, characterized in that: One end of the corner combination roller (2) is fixedly connected to the center of the circle with an inclined linkage assembly; The tilt linkage assembly includes an angle gear shaft (14), an angle rack (15), a connecting column (16), a bevel rack (17), a bevel gear shaft (18), a bevel block (19), a linkage electric cylinder (20) and an angle sensor (21); The corner gear shaft (14) is fixed on one end of the corner combination roller (2), the corner rack (15) is meshed and connected to the outer wall of the corner gear shaft (14), the bottom end of the connecting column (16) is fixed at the top of the corner rack (15), the bevel rack (17) is fixed at the top of the connecting column (16), the bevel gear shaft (18) is meshed and connected to the inclined surface above the bevel rack (17), the bevel gear shaft (18) is fixedly connected to the bevel combination roller (6) cocentrically, the bevel block (19) is fixed on the lower inclined surface of the bevel rack (17), the linkage electric cylinder (20) is installed on the lower inclined surface of the bevel block (19), the outer wall of the linkage electric cylinder (20) is fixedly connected to the V-shaped bottom mold (1), and the angle sensor (21) is installed on one end of the corner gear shaft (14), and the angle sensor (21) is used to sense the rotation angle of the corner gear shaft (14); The linkage electric cylinder (20) and the angle sensor (21) are both electrically connected to the controller (25).

7. The automotive sheet metal stamping die according to claim 6, characterized in that: The top end of the bevel rack (17) is higher than the top end of the corner rack (15), and both the bevel rack (17) and the corner rack (15) are slidably connected to the V-shaped bottom mold (1).

8. The automotive sheet metal stamping die according to claim 6, characterized in that: The inclined block (19) and the inclined rack (17) are vertically arranged, and the inclined block (19) and the V-shaped bottom mold (1) are slidably connected; The outer wall of the angle sensor (21) is fixedly connected to a housing (22), and the housing (22) is fixedly connected to the V-shaped bottom mold (1).

9. The automotive sheet metal stamping die according to claim 1, characterized in that: A positioning frame (28) is fixedly connected to the upper surface of the V-shaped bottom mold (1); The upper surface of the positioning frame (28) is fixedly connected to a sleeve plate (23), the upper surface of the sleeve plate (23) is fixedly mounted with a stamping electric cylinder (24), the output end of the stamping electric cylinder (24) is fixedly connected to a processing upper die (27), the controller (25) is fixedly located on the outer wall of the sleeve plate (23), and guide columns (26) are provided on both sides of the stamping electric cylinder (24), both of the two guide columns (26) are slidably connected to the sleeve plate (23), and both of the two guide columns (26) are fixedly connected to the processing upper die (27).

10. The automotive sheet metal stamping die according to claim 9, characterized in that: The output end of the punching electric cylinder (24) is slidably connected to the sleeve plate (23), and the punching electric cylinder (24) is electrically connected to the controller (25).

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