A bending and forming method for an aluminum alloy bumper profile for automobiles

Abstract

The present invention discloses a bending and forming method for an aluminum alloy bumper profile for automobiles, and the present invention relates to the technical field of forming dies. By rotating the adjusting nut, the distance between the adjusting nut and the pressing part becomes shorter. At this time, the distance between the pressing part and the mating limiting part becomes longer, so that there is no meshing relationship between the mating limiting part and the tooth column, and separation is achieved. Slide the limiting inner plate up and down. Since the limiting inner plate and the waste knife seat are connected by a connecting rod, when the limiting inner plate slides, it drives the waste knife seat to move along the direction of the guiding column, thereby adjusting the position of the waste knife on the waste knife seat relative to the guiding column, adjusting the waste knife, and after determining the position, meshing the mating limiting part and the tooth column, determining the position, and locking and fixing it through the adjusting nut, so that the position of the waste knife is fixed, realizing the adjustment of the position of the waste knife, which is convenient and simple, and there is no need to reprocess and add to the die.

Description

Technical Field

[0001] The present invention relates to the technical field of forming molds, and specifically relates to a method for bending and forming an aluminum alloy bumper profile for automobiles. Background Art

[0002] In the assembly parts of automobiles, bumpers are required to ensure the safety of automobiles. During the production process of bumpers, molds are needed to form them. Since the formed parts of bumpers are relatively large, it is necessary to cut the waste materials on the edges to ensure that the waste materials on the formed edges can slide down conveniently. There are certain defects in the traditional forming method. Due to the fixed setting of the waste material knife, its cutting position is determined. Once the position is not determined correctly during the initial test of the mold, repositioning is required. However, there are no extra mounting platforms arranged on the mold, so it is necessary to reprocess and add the mold, which is cumbersome and has a high time cost. Summary of the Invention

[0003] The present invention provides a method for bending and forming an aluminum alloy bumper profile for automobiles, which solves the problems proposed in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A method for bending and forming an aluminum alloy bumper profile for automobiles includes the following steps:

[0005] Step S1: Initially install and debug the mold, and then perform assembly;

[0006] Step S2: Place the mold on the press for debugging;

[0007] Step S3: According to the data after debugging, adjust the relative position of the waste material knife assembly on the lower die base, and then perform production stamping and forming on the mold;

[0008] Step S4: Obtain the product parts and unload the mold.

[0009] As a further solution of the present invention: Step S1 specifically includes: initially install and debug the corresponding parts of the upper die and the lower die, adjust the mold accuracy of the upper die and the lower die to the assembly requirements, and then perform assembly.

[0010] As a further solution of the present invention: Step S2 specifically includes: hoist the upper die and the lower die on the mold, first position and assemble the lower die on the pressed lower bed body, then the lower bed body enters the press, the upper bed body of the press presses down, and after fixing the upper die on the upper bed body, perform assembly and debugging.

[0011] As a further solution of the present invention: Step S3 specifically includes: The upper die is pressed down under the action of the upper bed body. Since the accuracy of the end heads and guide sleeves on the upper die is guaranteed to be consistent with that of the end head openings and guide columns on the lower die, through the rough positioning of the end heads and end head openings, and through the precise positioning of the guide sleeves and guide columns, the die production relationship is ensured between the upper die and the lower die. The bumper profile is bent and formed by the lower forming part on the lower die and the upper forming part on the upper die. The hole grooves on the bumper profile are punched correspondingly by the punch in the die. The edge forming is carried out by the waste knife assembly and the waste knife insert block to form a shearing force under the action of the upper die and the lower die, and the edge is trimmed and formed. The waste knife assembly is adjusted for fine tuning.

[0012] As a further solution of the present invention: Step S4 specifically includes: The formed plate is blanked. After blanking, the upper bed body is pressed down, the upper die is disengaged from the press, and then the lower bed body is removed from the press to complete the product production.

[0013] As a further solution of the present invention: The assembly and debugging in step S2 specifically include:

[0014] Step Y1: After the end piece is flipped up, the flipping limiting column slides in a flipping manner, and the flipping limiting column slides along the direction of the flipping guide plate and then gets stuck inside the limiting hole.

[0015] Step Y2: After the two flipping limiting columns are stuck inside the limiting hole, the positions of the two flipping limiting columns are limited by the limiting plate, and then the limiting plate is blocked by the clamping block.

[0016] As a further solution of the present invention: The specific method for fine tuning the waste knife assembly in step S3 includes the following steps:

[0017] Step X1: Rotate the adjusting nut to shorten the distance between the adjusting nut and the pressing part. At this time, the distance between the pressing part and the mating limiting part is lengthened, so that there is no meshing relationship between the mating limiting part and the tooth column, and disengagement is achieved.

[0018] Step X2: Slide the limiting inner plate up and down. Since the limiting inner plate and the waste knife seat are connected by a connecting rod, when the limiting inner plate slides, it drives the waste knife seat to move along the direction of the guide column, thereby adjusting the position of the waste knife on the waste knife seat relative to the guide column and adjusting the waste knife.

[0019] Step X3: After determining the position, mesh the mating limiting part with the tooth column, determine the position, and lock it by the adjusting nut to fix the position of the waste knife.

[0020] The upper mold is arranged above the lower mold, and the basic structure of the mold is formed between the two. The molding of the mold product is realized through the upper mold and the lower mold. Among them, the lower mold includes a lower mold base, which is the basic body of the mold. End ports are provided at both ends of the lower mold base, and the end ports are used for rough positioning of the ends on the upper mold. Guide columns are arranged at the middle positions inside each end port for fine positioning. Connecting plates are arranged on the surfaces at both ends of the lower mold base. The connecting plates play a role in limiting the upper mold and the lower mold during transportation, preventing the position between the upper mold and the lower mold from separating. In addition, buffer rubber rings are arranged at the four corners of the upper surface of the lower mold base, which play a buffering role, enabling the upper mold and the lower mold to buffer during the operation of the press, reducing the hard contact between the molds, and improving the service life of the mold. A lower forming part is fixedly arranged on the upper surface of the lower mold base. The lower forming part is a key part for profile forming. Scrap slide plates are arranged on the surface of the lower mold base around the lower forming part. The scrap cut by the scrap knife assembly slides down through the scrap slide plates. The scrap knife assembly is slidably arranged on the surface of the lower mold base.

[0021] The upper mold includes an upper mold base. Ends are fixedly arranged on the surfaces at both ends of the upper mold base. Guide sleeves are arranged inside each end. An upper forming part is fixedly arranged at the upper end of the upper mold base. Scrap knife inserts are arranged on both sides of the upper forming part. A shearing force is formed between the scrap knife inserts and the scrap knife assembly.

[0022] Among them, the scrap knife assembly includes a toothed column arranged on the lower mold base. A guide column is fixedly arranged on the lower mold base. A scrap knife seat is slidably arranged on the guide column. A scrap knife is fixedly arranged on the upper surface of the scrap knife seat. A connecting rod is rotatably arranged at the bottom of the scrap knife seat. The other end of the connecting rod is rotatably connected to a limiting inner plate through a rotating connection block. A matching limiting part is arranged at one end of the limiting inner plate. A threaded column is arranged through the other end of the limiting inner plate. A pressing part is fixedly arranged at one end of the threaded column. An adjusting nut is threadedly arranged on the surface of the other end of the threaded column. The limiting inner plate is slidably sleeved on the toothed column.

[0023] The present invention provides a method for bending and forming an aluminum alloy bumper profile for automobiles. Compared with the prior art, it has the following beneficial effects:

[0024] 1. By rotating the adjusting nut, the distance between the adjusting nut and the pressing part is shortened. At this time, the distance between the pressing part and the mating limiting part is lengthened, so that there is no meshing relationship between the mating limiting part and the tooth column, achieving disengagement. Slide the limiting inner plate up and down. Since the limiting inner plate is connected to the waste knife seat through a connecting rod, when the limiting inner plate slides, it drives the waste knife seat to move along the direction of the guiding column, thereby adjusting the position of the waste knife on the waste knife seat relative to the guiding column, adjusting the waste knife. After determining the position, engage the mating limiting part with the tooth column, determine the position, and lock it in place through the adjusting nut. The position of the waste knife is fixed, realizing the adjustment of the position of the waste knife, which is convenient and simple, and there is no need to reprocess and add to the mold.

[0025] 2. During the operation of the press, the upper die and the lower die are buffered to reduce the hard contact between the dies and improve the service life of the dies. The connecting plate is used to limit the position of the upper die and the lower die during transportation.

[0026] 3. By means of the connection module of the end piece, the end piece can be replaced. Through the two rotationally arranged flipping limiting columns at the bottom, the flipping limiting columns provide a certain force support for the setting of the end piece, ensuring the accuracy of the guidance of the end piece without affecting the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic structural diagram of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the upper die of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the lower die of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the waste knife assembly of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the end of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the lower side of the end of the present invention;

[0034] Figure 7 It is a schematic structural diagram of the flipping limiting column of the present invention;

[0035] Figure 8 It is a schematic structural diagram of the flipping guide plate of the present invention.

[0036] In the figure: 1. Upper die; 11. Upper die base; 12. End head; 121. End head part; 122. Folding plate; 123. Turning guide plate; 124. Turning limit post; 1241. Turning limit post body; 1242. Opening guide groove; 125. Limiting plate; 126. Block; 127. Limiting hole; 13. Guide bushing; 14. Upper forming part; 15. Scrap knife insert; 2. Lower die; 21. Lower die base; 22. Connecting plate; 23. Buffer rubber ring; 24. End head port; 25. Lower forming part; 26. Scrap slide; 27. Scrap knife assembly; 271. Scrap knife; 272. Scrap knife base; 273. Guide post; 274. Tooth column; 275. Connecting rod; 276. Adjusting nut; 277. Limiting inner plate; 278. Threaded post; 279. Pressing part; 2710. Matching limiting part; 2711. Rotating connection block; 28. Guide pillar. Detailed implementation manners <> <>

[0037] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows. <> <>

[0038] Please refer to <> Figure 1-8 As shown, a bending and forming method for an aluminum alloy bumper profile for automobiles includes the following steps: <> <>

[0039] Step S1: Initially install and debug the mold, and then assemble it. <> <>

[0040] Step S2: Place the mold on the press for debugging. <> <>

[0041] Step S3: According to the data after debugging, adjust the relative position of the scrap knife assembly 27 on the lower die base 21, and then perform production stamping and forming on the mold. <> <>

[0042] Step S4: Obtain the product part and remove the mold from the machine. <> <>

[0043] Among them, step S1 specifically includes: initially installing and debugging the corresponding parts of the upper die 1 and the lower die 2, adjusting the mold accuracy of the upper die 1 and the lower die 2 to the assembly requirements, and then performing assembly. <> <>

[0044] Among them, step S2 specifically includes: hoisting the upper die 1 and the lower die 2 on the mold, first positioning and assembling the lower die 2 on the pressed lower bed body, then the lower bed body enters the press, the upper bed body of the press presses down, and after fixing the upper die 1 on the upper bed body, perform assembly and debugging. <> <>

[0045] The assembly and debugging in step S2 specifically include: <> <>

[0046] Step Y1: After flipping up the end piece 121, the flipping limit post 124 flips and slides, and the flipping limit post 124 flips and slides along the direction of the flipping guide plate 123 and then gets stuck inside the limit hole 127.

[0047] Step Y2: After the two flipping limit posts 124 are stuck inside the limit hole 127, the positions of the two flipping limit posts 124 are restricted by the limit plate 125, and then the limit plate 125 is stuck by the clamping block 126.

[0048] Among them, step S3 specifically includes: The upper die 1 is pressed down under the action of the upper bed body. Since the accuracy of the end 12 and the guide sleeve 13 on the upper die 1 is guaranteed to be the same as that of the end port 24 and the guide post 28 on the lower die 2, through the rough positioning of the end 12 and the end port 24, and the precise positioning of the guide sleeve 13 and the guide post 28, the die production relationship between the upper die 1 and the lower die 2 is ensured. The bumper profile is bent and formed by the lower forming part 25 on the lower die 2 and the upper forming part 14 on the upper die 1. The holes and grooves on the bumper profile are correspondingly punched by the punch in the die. The edge forming forms a shearing force under the action of the upper die 1 and the lower die 2 through the waste knife assembly 27 and the waste knife insert 15 to trim and form the edge, and fine adjustment is carried out by adjusting the waste knife assembly 27.

[0049] Among them, step S4 specifically includes: The formed plate is blanked. After blanking, the upper bed body presses down, the upper die 1 is disengaged from the press, and then the lower bed body is removed from the press to complete the product production.

[0050] In this embodiment, the upper die 1 is arranged above the lower die 2, and the basic structure of the die is formed between the two. The die product is formed through the upper die 1 and the lower die 2. Among them, the lower die 2 includes a lower die base 21. The lower die base 21 is the basic body of the die. End ports 24 are opened at both ends of the lower die base 21. The end ports 24 realize the rough positioning of the end 12 on the upper die 1. A guide post 28 is arranged at the middle position inside each end port 24 for precise positioning. Connecting plates 22 are arranged on the surfaces at both ends of the lower die base 21. The connecting plates 22 play a role in limiting the upper die 1 and the lower die 2 during transportation to prevent the position between the upper die 1 and the lower die 2 from being disengaged. And buffer rubber rings 23 are arranged at the four corners of the upper surface of the lower die base 21. The buffer rubber rings 23 play a buffering role to buffer the upper die 1 and the lower die 2 during the working process of the press, reduce the hard contact between the dies, improve the service life of the die. A lower forming part 25 is fixedly arranged on the upper surface of the lower die base 21. The lower forming part 25 is the key part for profile forming. And waste slide plates 26 are arranged on the surface of the lower die base 21 around the lower forming part 25. The waste slide plates 26 allow the waste cut by the waste knife assembly 27 to slide down. The waste knife assembly 27 is slidably arranged on the surface of the lower die base 21.

[0051] The upper die 1 includes an upper die base 11, end heads 12 are movably arranged on the two end surfaces of the upper die base 11, guide sleeves 13 are arranged inside each end head 12, an upper forming part 14 is fixedly arranged at the upper end of the upper die base 11, waste knife inserts 15 are arranged on both sides of the upper forming part 14, and a shearing force is formed between the waste knife inserts 15 and the waste knife assembly 27.

[0052] Among them, the waste knife assembly 27 includes a toothed column 274, the toothed column 274 is arranged on the lower die base 21, and a guide column 273 is fixedly arranged on the lower die base 21, a waste knife seat 272 is slidably arranged on the guide column 273, a waste knife 271 is fixedly arranged on the upper surface of the waste knife seat 272, a connecting rod 275 is rotatably arranged at the bottom of the waste knife seat 272, the other end of the connecting rod 275 is rotatably connected to a limiting inner plate 277 through a rotating connection block 2711, the rotating connection block 2711 is fixed on the limiting inner plate 277, a matching limiting part 2710 is arranged at one end of the limiting inner plate 277, a threaded column 278 is arranged through the other end of the limiting inner plate 277, a pressing part 279 is fixedly arranged at one end of the threaded column 278, an adjusting nut 276 is threadedly arranged on the surface of the other end of the threaded column 278, and the limiting inner plate 277 is slidably sleeved on the toothed column 274.

[0053] The end head 12 includes a folding plate 122 rotatably arranged on the upper die base 11, an end head part 121 is fixedly arranged at the upper end of the folding plate 122, a limiting hole 127 is opened inside the upper die base 11, two flipping guide plates 123 are symmetrically arranged on the side wall of the upper die base 11, a flipping limiting column 124 is rotatably and slidably arranged on the side wall of the upper die base 11 through the flipping guide plates 123, a limiting plate 125 is rotatably arranged on the side wall of the end head part 121, the length value of the limiting plate 125 is greater than the distance value between the two flipping limiting columns 124, the flipping limiting column 124 includes a flipping limiting column main body 1241 and an opening guide groove 1242 opened on the flipping limiting column main body 1241, and is movably arranged through the opening guide groove 1242 and the flipping guide plates 123, and the limiting plate 125 is used to clamp between the two flipping limiting columns 124 through a clamping block 126 fixed on the upper die base 11 to prevent the separation of the flipping limiting column 124. Since the traditional end head part 121 is fixed on the upper die base 11, using an end head for one mold increases the cost. By making the connection module of the end head part 121, the end head part 121 can be replaced. Through the two rotatably arranged flipping limiting columns 124 at the bottom, the flipping limiting columns 124 provide a certain force support for the setting of the end head part 121, ensuring the accuracy of the guide of the end head part 121 without affecting the service life of the mold. Through the limitation of the limiting plate 125, the two flipping limiting columns 124 are prevented from slipping.

[0054] Among them, the specific method for fine-tuning the waste knife assembly 27 in step S3 includes the following steps:

[0055] Step X1: Rotate the adjusting nut 276 to shorten the distance between the adjusting nut 276 and the pressing member 279. At this time, the distance between the pressing member 279 and the mating limiting portion 2710 is lengthened, so that there is no meshing relationship between the mating limiting portion 2710 and the tooth column 274, realizing disengagement;

[0056] Step X2: Slide the limiting inner plate 277 up and down. Since the limiting inner plate 277 is connected to the waste knife seat 272 through the connecting rod 275, when the limiting inner plate 277 slides, it drives the waste knife seat 272 to move along the direction of the guide post 273, thereby adjusting the position of the waste knife 271 on the waste knife seat 272 relative to the guide post 273 and adjusting the waste knife 271;

[0057] Step X3: After determining the position, mesh the mating limiting portion 2710 with the tooth column 274 to determine the position, and lock it by the adjusting nut 276 to fix the position of the waste knife 271.

[0058] When the present invention is in use, the corresponding parts of the upper die 1 and the lower die 2 are initially assembled and debugged, and the die precision of the upper die 1 and the lower die 2 is adjusted to the assembly requirements. Subsequently, the assembly is carried out. The upper die 1 and the lower die 2 on the die are lifted. First, the lower die 2 is positioned and assembled on the pressed lower bed body. Subsequently, the lower bed body enters the press. The upper bed body of the press presses down. After the upper die 1 is fixed on the upper bed body, the assembly debugging is carried out. The upper die 1 presses down under the action of the upper bed body. Since the precision of the end 12 and the guide sleeve 13 on the upper die 1 is guaranteed to be consistent with that of the end port 24 and the guide post 28 on the lower die 2, through the rough positioning of the end 12 and the end port 24, and through the precise positioning of the guide sleeve 13 and the guide post 28, the die production relationship between the upper die 1 and the lower die 2 is ensured. The bumper profile is bent and formed by the lower forming part 25 on the lower die 2 and the upper forming part 14 on the upper die 1. The holes and grooves on the bumper profile are correspondingly punched by the punch in the die. The edge forming forms a shearing force under the action of the upper die 1 and the lower die 2 through the waste knife assembly 27 and the waste knife insert 15 to trim and form the edge. The waste knife assembly 27 is adjusted finely. The adjusting nut 276 is rotated to shorten the distance between the adjusting nut 276 and the pressing part 279. At this time, the distance between the pressing part 279 and the fitting limiting part 2710 is lengthened, so that there is no meshing relationship between the fitting limiting part 2710 and the tooth column 274, and disengagement is achieved. The inner plate 277 of the up and down sliding limit slides up and down. Since the inner plate 277 of the limit is connected to the waste knife seat 272 through the connecting rod 275, when the inner plate 277 of the limit slides, it drives the waste knife seat 272 to move along the direction of the guide post 273, thereby adjusting the position of the waste knife 271 on the waste knife seat 272 relative to the guide post 273 to adjust the waste knife 271. After the position is determined, the fitting limiting part 2710 and the tooth column 274 are meshed to determine the position, and it is restricted and locked by the adjusting nut 276, and the position of the waste knife 271 is fixed.

[0059] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bending and forming method for an aluminum alloy bumper profile for automobiles, characterized in that: It includes the following steps: Step S1: Conduct initial installation and debugging of the mold and then assemble it; Step S2: Place the mold on the press for debugging; Step S3: According to the data after debugging, adjust the relative position of the waste knife assembly (27) on the lower die base (21), and then perform production stamping and forming on the mold; Step S4: Obtain the product parts and remove the mold from the machine; The waste knife assembly (27) is slidably arranged on the surface of the lower die base (21); The waste knife assembly (27) includes a tooth column (274). The tooth column (274) is arranged on the lower die base (21). A guide column (273) is fixedly arranged on the lower die base (21). A waste knife seat (272) is slidably arranged on the guide column (273). A waste knife (271) is fixedly arranged on the upper surface of the waste knife seat (272). A connecting rod (275) is rotatably arranged at the bottom of the waste knife seat (272). The other end of the connecting rod (275) is rotatably connected to a limiting inner plate (277) through a rotating connection block (2711). The rotating connection block (2711) is fixed on the limiting inner plate (277). A matching limiting part (2710) is arranged at one end of the limiting inner plate (277). A threaded column (278) penetrates through the other end of the limiting inner plate (277). A pressing part (279) is fixedly arranged at one end of the threaded column (278). An adjusting nut (276) is threadedly arranged on the surface of the other end of the threaded column (278). The limiting inner plate (277) is slidably sleeved on the tooth column (274); The specific method for fine-tuning the waste knife assembly (27) includes the following steps: Step X1: Rotate the adjusting nut (276) to make the distance between the adjusting nut (276) and the pressing part (279) shorter. At this time, the distance between the pressing part (279) and the matching limiting part (2710) becomes longer, so that there is no meshing relationship between the matching limiting part (2710) and the tooth column (274), achieving disengagement; Step X2: Slide the limiting inner plate (277) up and down. Since the limiting inner plate (277) is connected to the waste knife seat (272) through the connecting rod (275), when the limiting inner plate (277) slides, it drives the waste knife seat (272) to move along the direction of the guide column (273), thereby adjusting the position of the waste knife (271) on the waste knife seat (272) relative to the guide column (273) and adjusting the waste knife (271); Step X3: After determining the position, engage the matching limiting part (2710) with the tooth column (274) to determine the position, and lock it by the adjusting nut (276) to fix the position of the waste knife (271).

2. A bending and forming method for an aluminum alloy bumper profile for automobiles according to claim 1, characterized in that: Step S1 specifically includes: Conduct initial installation and debugging of the corresponding parts of the upper die (1) and the lower die (2), adjust the mold accuracy of the upper die (1) and the lower die (2) to the assembly requirements, and then perform the assembly.

3. A bending forming method for an aluminum alloy bumper profile for automobiles according to claim 1, characterized in that: Step S2 specifically includes: Lift and transport the upper die (1) and the lower die (2) on the mold. First, position and assemble the lower die (2) on the pressed lower bed body, and then the lower bed body enters the press. The upper bed body of the press presses down. After fixing the upper die (1) on the upper bed body, perform assembly and debugging.

4. A bending and forming method for an aluminum alloy bumper profile for an automobile according to claim 1, characterized in that: Step S3 specifically includes: The upper die (1) is pressed down under the action of the upper bed body. Since the accuracy of the end (12) and the guide sleeve (13) on the upper die (1) is guaranteed to be consistent with the accuracy of the end port (24) and the guide post (28) on the lower die (2), through the rough positioning of the end (12) and the end port (24), and through the precise positioning of the guide sleeve (13) and the guide post (28), the die production relationship is ensured between the upper die (1) and the lower die (2). The bumper profile is bent and formed by the lower forming part (25) on the lower die (2) and the upper forming part (14) on the upper die (1). The holes and grooves on the bumper profile are punched correspondingly by the punch in the die. The edge forming is carried out by the waste knife assembly (27) and the waste knife insert (15) to form a shearing force under the action of the upper die (1) and the lower die (2), and the edge is trimmed and formed. Fine adjustment is carried out by adjusting the waste knife assembly (27).

5. A bending and forming method for an aluminum alloy bumper profile for an automobile according to claim 1, characterized in that: (1) is guaranteed to be consistent with the accuracy of the end port (24) and the guide post (28) on the lower die (2), through the rough positioning of the end (12) and the end port (24), and through the precise positioning of the guide sleeve (13) and the guide post (28), the die production relationship is ensured between the upper die (1) and the lower die (2). The bumper profile is bent and formed by the lower forming part (25) on the lower die (2) and the upper forming part (14) on the upper die (1). The holes and grooves on the bumper profile are punched correspondingly by the punch in the die. The edge forming is carried out by the waste knife assembly (27) and the waste knife insert (15) to form a shearing force under the action of the upper die (1) and the lower die (2), and the edge is trimmed and formed. Fine adjustment is carried out by adjusting the waste knife assembly (27).

6. A bending and forming method for an aluminum alloy bumper profile for automobiles according to claim 3, characterized in that: Step S4 specifically includes: The formed plate is blanked. After blanking, the upper bed body presses down, the upper die (1) is disengaged from the press, and then the lower bed body is removed from the press to complete the product production. The assembly and debugging in Step S2 specifically include: Step Y1: After flipping up the end piece (121), the flipping limiting column (124) slides in a flipping manner, and the flipping limiting column (124) slides and flips along the direction of the flipping guide plate (123) and then gets stuck inside the limiting hole (127). Step Y2: After the two flipping limiting columns (124) are stuck inside the limiting hole (127), the positions of the two flipping limiting columns (124) are limited by the limiting plate (125), and then the limiting plate (125) is stuck by the block (126).

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