Punch forming device for aluminum alloy sheet metal part

Abstract

The invention relates to the field of sheet metal stamping, in particular to a stamping forming device for aluminum alloy sheet metal parts, comprising: a mounting assembly comprising a base, a top seat and a stamping plate, the upper end of the top seat is fixedly provided with a stamping cylinder, and the output end of the stamping cylinder is connected with the stamping plate; the conveying assembly comprises conveying tables arranged on the two sides of the base, the conveying tables are used for conveying plates, and a stamping table capable of ascending and descending along with the plates is arranged between the conveying tables; the lower die assembly comprises a male die fixing base, a lower supporting plate and a sprouting male die. The upper die assembly comprises a female die fixing base, a sprouting female die, a stripping base, a punching rod and a rotating rod. According to the stamping die, the pre-punching and budding stamping processes of a plate can be achieved in the one-time stamping process, the stamping machining efficiency is greatly improved, meanwhile, the pre-punching and budding processes are conducted in the same stamping stroke of the budding male die, it is ensured that the budding position can be accurately aligned with the pre-punching hole every time, and the budding stamping quality can be improved.

Description

Technical Field

[0001] This invention relates to the field of sheet metal stamping technology, and in particular to a stamping forming apparatus for aluminum alloy sheet metal parts. Background Technology

[0002] Aluminum alloy sheet metal stamping is a precision forming technology that uses dies to apply pressure to aluminum alloy sheets, causing them to undergo plastic deformation or separation, thereby obtaining parts with the required shape and size. This process is characterized by high efficiency, good consistency, and high material utilization, and is particularly suitable for mass production. It is widely used in aerospace, automotive lightweighting, electronic communications, and other fields, and is a key process for manufacturing lightweight, high-strength components with complex structures.

[0003] In budding stamping, a thin metal sheet is locally thinned and extended upwards (or downwards) by the extrusion and stretching of a punch and die, forming a convex cylinder with a certain height and straight walls. Threads are then tapped directly onto the inner wall of this cylinder to create threads suitable for screw fastening. Current stamping equipment often requires pre-punching holes in the sheet metal before budding, then changing the punch and refeeding the sheet for another budding stamping operation. This results in low stamping efficiency. Furthermore, because the sheet metal undergoes two stamping cycles, the pre-punched holes and budding positions need to be aligned, further reducing stamping efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping forming apparatus for aluminum alloy sheet metal parts, which aims to solve the above-mentioned technical problems.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A stamping forming apparatus for aluminum alloy sheet metal parts, comprising:

[0007] The mounting assembly includes a base, a top seat, and a stamping plate. A stamping cylinder is fixedly mounted on the upper end of the top seat, and the output end of the stamping cylinder is connected to the stamping plate.

[0008] The conveying assembly includes conveying platforms disposed on both sides of the base, the conveying platforms being used to convey sheet metal, and a stamping platform that can be raised and lowered with the sheet metal being disposed between the conveying platforms.

[0009] The lower die assembly includes a punch fixing seat, a lower support plate, and a drawing punch. The punch fixing seat is fixed on the base, and the drawing punch is fixed on the punch fixing seat. A blanking punch is provided through the drawing punch.

[0010] The upper die assembly includes a die fixing seat, a drawing die, a stripper seat, a punch, and a rotating rod. The die fixing seat is fixed to the bottom of the stamping plate, the drawing die is fixed inside the die fixing seat, the stripper seat is located in the inner cavity of the drawing die, the punch is fixed to the bottom of the stripper seat and extends downward to align with the blanking punch. The rotating rod can lock or unlock the stripper seat by rotating. In the locked state, the punch is pushed to cooperate with the blanking punch to pre-punch the plate. In the unlocked state, the drawing die is pushed to cooperate with the drawing punch to stamp and draw the plate.

[0011] As a further embodiment of the present invention: a retaining ring is fixedly provided on the inner wall of the die fixing seat, a blanking step is provided inside the die fixing seat, the drawing punch is fixedly installed in the blanking step, the lower support plate is movably installed in the die fixing seat and is limited and blocked by the retaining ring, a top spring is provided between the bottom of the lower support plate and the die fixing seat, and a drawing punch hole for the drawing punch to extend is provided through the center of the upper end of the lower support plate.

[0012] As a further embodiment of the present invention: the top end of the budding punch extends upward to provide a guide cone portion, the edge of the top end of the budding punch is provided with a rounded corner portion, the bottom end of the guide cone portion and the rounded corner portion are smoothly connected, and the top end of the guide cone portion is flush with the upper surface of the lower support plate.

[0013] As a further aspect of the present invention: a sliding groove is provided on the inner wall of the budding die cavity, and sliding blocks are provided on both sides of the stripper seat. The sliding blocks are slidably installed in the sliding groove. A compression spring is provided between the top of the stripper seat and the budding die cavity, and a conical groove for the guide cone to engage is provided at the bottom of the stripper seat.

[0014] As a further embodiment of the present invention: the top end of the rotating rod is rotatably engaged with the bottom of the output shaft of the stamping cylinder through a rotary joint, the bottom end of the rotating rod passes through the die fixing seat and extends into the inner cavity of the drawing die and is connected to a limit block, the center of the stripper seat is provided with a limit hole corresponding to the limit block, and the rotating rod is pressed against the top end of the stripper seat or inserted into the limit hole through the limit block.

[0015] As a further aspect of the present invention: a servo motor is fixedly mounted on the stamping plate, a drive tooth is connected to the output end of the servo motor, a transmission tooth is sleeved on the rotating rod, the drive tooth meshes with the transmission tooth, and pressure sensors are provided at the bottom of both sides of the budding die, the pressure sensors being communicatively connected to the servo motor.

[0016] As a further aspect of the present invention: the bottom of the stripper seat is flush with the bottom of the budding die, and the depth of the limiting hole is greater than the stamping budding stroke.

[0017] As a further embodiment of the present invention: conveying rollers are arranged inside the conveying table, and transition rollers flush with the conveying rollers are provided at both ends of the stamping table. A clearance hole for the budding die to pass through is provided through the center of the stamping table. Ear seats are provided on both sides of the stamping table. A sliding rod is slidably provided inside the ear seat. A baffle is fixed at the top of the sliding rod. A buffer spring is provided between the bottom of the ear seat and the base.

[0018] As a further aspect of the present invention: the upper end of the stamping platform is flush with the surface of the conveyor platform, and the minimum distance between the transition rollers at both ends is less than the length of the plate.

[0019] As a further embodiment of the present invention: guide posts are provided at the four corners between the base and the top seat, and the stamping plate is slidably installed on the guide posts.

[0020] The beneficial effects of this invention are:

[0021] (1) By setting up the upper die assembly and the lower die assembly, in the initial state, the rotating rod will abut against the top of the stripper seat and lock it. During the pressing process, the pressure is transmitted to the punch through the rotating rod, so that the punch contacts the plate first. In conjunction with the blanking punch in the budding punch, the pre-punching process of the plate is realized. As the upper die assembly continues to press down, until the budding die contacts the plate, the rotating rod will release the abutment and locking action of the stripper seat. At the same time, the budding punch will push up along the pre-punched hole of the plate and cooperate with the pressing budding die to realize the upward budding punching process of the plate. Thus, the pre-punching and budding punching processes of the plate can be realized in one punching process, which greatly improves the stamping processing efficiency. At the same time, the pre-punching and budding processes are carried out in the same punching stroke of the budding punch, ensuring that the budding position can be accurately aligned with the pre-punched hole each time, which is conducive to improving the budding punching quality.

[0022] (2) Before the rounded corner comes into contact with the plate and is pressed, the pre-punched part of the plate will undergo material flow deformation along the guide cone, which is equivalent to a pre-flanging process. This can avoid the instantaneous increase in stress concentration caused by the rounded corner coming into contact with the pre-punched part and being pressed, which can lead to cracking of the bud. Thus, the guide cone can play a buffering role in the budding and flanging process, effectively reducing the risk of bud cracking and greatly improving the yield of budding stamping. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the stamping table in this invention.

[0026] Figure 3 This is a schematic diagram of the lower mold assembly in this invention.

[0027] Figure 4 This is a schematic diagram of the upper mold assembly in this invention.

[0028] Figure 5 This is a schematic diagram of the budding concave mold in this invention.

[0029] Figure 6 This is a schematic diagram of the stripper seat in this invention.

[0030] Figure 7 This is a schematic diagram of the state during pre-punching in this invention.

[0031] Figure 8 yes Figure 7 A magnified structural diagram of point A in the middle.

[0032] Figure 9 This is a schematic diagram of the state during the budding and pressing process in this invention.

[0033] Figure 10 yes Figure 9 A magnified structural diagram at point B in the middle.

[0034] In the picture:

[0035] 1. Mounting components; 11. Base; 12. Top mount; 121. Servo motor; 122. Drive gear; 13. Stamping cylinder; 14. Stamping plate; 15. Guide column;

[0036] 2. Conveying assembly; 21. Conveying table; 22. Conveying roller; 23. Stamping table; 231. Ear seat; 232. Slide rod; 233. Baffle; 234. Buffer spring; 24. Transition roller; 25. Clearance hole;

[0037] 3. Lower die assembly; 31. Punch holder; 311. Retaining ring; 312. Blanking step section; 32. Lower support plate; 321. Top spring; 322. Drawing punch; 33. Drawing punch; 331. Blanking punch; 332. Guide cone section; 333. Rounded corner section;

[0038] 4. Upper mold assembly; 41. Die fixing seat; 42. Budding die; 421. Pressure sensor; 422. Sliding groove; 43. Stripper seat; 431. Limiting hole; 432. Sliding block; 433. Compression spring; 434. Tapered groove; 44. Punch rod; 45. Rotating rod; 451. Limiting block; 452. Transmission gear; 453. Rotary joint;

[0039] 5. Plate; 501. Pre-punched hole section; 502. Expanded hole section; 503. Bud column. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figures 1-6 As shown, the present invention is a stamping forming apparatus for aluminum alloy sheet metal parts, comprising:

[0042] Mounting assembly 1 includes a base 11, a top seat 12 and a stamping plate 14. A stamping cylinder 13 is fixedly mounted on the upper end of the top seat 12, and the output end of the stamping cylinder 13 is connected to the stamping plate 14.

[0043] The conveying assembly 2 includes conveying platforms 21 disposed on both sides of the base 11. The conveying platforms 21 are used to convey the plate 5. A stamping platform 23 that can be raised and lowered with the plate 5 is disposed between the conveying platforms 21.

[0044] The lower die assembly 3 includes a punch fixing seat 31, a lower support plate 32, and a drawing punch 33. The punch fixing seat 31 is fixed on the base 11, and the drawing punch 33 is fixed on the punch fixing seat 31. A blanking punch 331 is provided through the drawing punch 33.

[0045] The upper die assembly 4 includes a die fixing seat 41, a drawing die 42, a stripper seat 43, a punch 44, and a rotating rod 45. The die fixing seat 41 is fixed to the bottom of the stamping plate 14. The drawing die 42 is fixed inside the die fixing seat 41. The stripper seat 43 is located in the inner cavity of the drawing die 42. The punch 44 is fixed to the bottom of the stripper seat 43 and extends downward to align with the blanking punch 331. The rotating rod 45 can lock or unlock the stripper seat 43 by rotating. In the locked state, the punch 44 is pushed to cooperate with the blanking punch 331 to pre-punch the plate 5. In the unlocked state, the drawing die 42 is pushed to cooperate with the drawing punch 33 to punch and draw the plate 5.

[0046] Specifically, by setting up the upper die assembly 4 and the lower die assembly 3, the sheet metal 5 is transported to the stamping table 23 via the conveyor table 21 for stamping. The stamping cylinder 13 drives the stamping plate 14 and the upper die assembly 4 to gradually press down. In the initial state, the rotating rod 45 will abut against the top of the stripper seat 43 to lock it. During the pressing process, the pressure is transmitted to the punch 44 through the rotating rod 45, so that the punch 44 contacts the sheet metal 5 first. In conjunction with the blanking punch 331 in the drawing punch 33, the pre-punching process of the sheet metal 5 is realized. As the upper die assembly 4 continues to press down, until the drawing die... When the rotating rod 45 contacts the sheet 5, it will release the locking action of the stripper seat 43. At the same time, the drawing punch 33 will be pushed upward along the pre-punched hole of the sheet 5. Together with the downward-pressing drawing die 42, the sheet 5 will be drawn upward. Thus, the pre-punching and drawing processes of the sheet 5 can be completed in one punching process, which greatly improves the stamping efficiency. At the same time, the pre-punching and drawing processes are carried out in the same punching stroke of the drawing punch 33, ensuring that the drawing position can be accurately aligned with the pre-punched hole each time, which is conducive to improving the drawing stamping quality.

[0047] like Figure 3 As shown, a retaining ring 311 is fixed on the inner wall of the die fixing base 41. A blanking step 312 is provided inside the die fixing base 41. The drawing punch 33 is fixedly installed in the blanking step 312. The lower support plate 32 is movably installed in the die fixing base 41 and is limited and blocked by the retaining ring 311. A top spring 321 is provided between the bottom of the lower support plate 32 and the die fixing base 41. A drawing punch 322 for the drawing punch 33 to extend is provided through the center of the upper end of the lower support plate 32.

[0048] Specifically, the lower support plate 32 is lifted upward by the elastic force of the top spring 321, and simultaneously blocked by the retaining ring 311, allowing the lower support plate 32 to move downward during the stamping process and automatically spring back upward, facilitating continuous stamping. The drawing punch 33 is fixed from the bottom of the blanking step 312 by threads and remains stationary during the stamping process. During the pre-punching process, the stamped material will also fall from the bottom of the die fixing seat 41 along the blanking punch 331 and the blanking step 312, ensuring rapid discharge and collection of waste.

[0049] like Figure 7 and Figure 8 As shown, the top of the budding punch 33 extends upward and is provided with a guide cone 332. The top edge of the budding punch 33 is provided with a rounded corner 333. The bottom end of the guide cone 332 and the rounded corner 333 are smoothly connected. The top end of the guide cone 332 is flush with the upper surface of the lower support plate 32.

[0050] like Figures 6-10As shown, a sliding groove 422 is provided on the inner wall of the budding die 42, and sliding blocks 432 are provided on both sides of the stripper seat 43. The sliding blocks 432 are slidably installed in the sliding groove 422. A compression spring 433 is provided between the top of the stripper seat 43 and the budding die 42, and a cone groove 434 is provided at the bottom of the stripper seat 43 for the guide cone 332 to engage.

[0051] Specifically, during pre-punching, the punch 44 is aligned with the blanking punch 331 inside the drawing punch 33. When the punch 44 contacts and punches the sheet 5, it will directly pass through the sheet 5 and extend into the blanking punch 331, forming a pre-punched portion 501 on the sheet 5. Due to the upward pressing action of the guide cone 332 on the sheet 5 during the punching process, the top of the guide cone 332 will insert into the bottom edge of the pre-punched portion 501, forming an arc-shaped enlarged portion 502. Figure 8 As shown.

[0052] As the drawing die 42 continues to press, the guide cone 332 will rise along the enlarged hole 502, causing the pre-punched hole 501 to move downwards along the guide cone 332 until it contacts and presses against the rounded corner 333 of the drawing punch 33. At this time, the drawing die 42 will push the lower support plate 32 downwards until the drawing punch 33 extends out of the drawing hole 322. The guide cone 332 will also engage in the cone groove 434, lifting the stripper seat 43 upwards. At this time, a bud pillar 503 will be formed between the inner wall of the drawing die 42 and the outer wall of the punch. Figure 10 As shown.

[0053] Before the rounded corner 333 comes into contact with and is pressed against the plate 5, the pre-punched portion 501 of the plate 5 undergoes material flow deformation along the guide cone 332, which is equivalent to a pre-flanging process. This avoids the instantaneous increase in stress concentration caused by the rounded corner 333 directly contacting and pressing against the pre-punched portion 501, which could lead to cracking of the bud column 503. Thus, the guide cone 332 can play a buffering role in the bud-flanging process, allowing the plate 5 to expand and flow evenly in the pre-punched portion 501, effectively reducing the risk of cracking of the bud column 503 and greatly improving the yield of bud-punching.

[0054] like Figures 4-6 As shown, the top end of the rotating rod 45 is rotatably engaged with the bottom of the output shaft of the stamping cylinder 13 through the rotary joint 453. The bottom end of the rotating rod 45 passes through the die fixing seat 41 and extends into the inner cavity of the drawing die 42 and is connected to a limit block 451. The center of the stripper seat 43 is provided with a limit hole 431 corresponding to the limit block 451. The rotating rod 45 is pressed against the top end of the stripper seat 43 or inserted into the limit hole 431 through the limit block 451.

[0055] Furthermore, a servo motor 121 is fixed on the stamping plate 14, and a drive gear 122 is connected to the output end of the servo motor 121. A transmission gear 452 is sleeved on the rotating rod 45, and the drive gear 122 meshes with the transmission gear 452. Pressure sensors 421 are provided at the bottom of both sides of the drawing die 42, and the pressure sensors 421 are communicatively connected to the servo motor 121.

[0056] Specifically, by setting the rotating rod 45, in the initial state, the limiting block 451 and the limiting hole 431 are perpendicularly intersecting each other, and the rotating rod 45 abuts against the top of the stripper seat 43. This allows the downward pressure to be directly transmitted to the punch 44 to smoothly realize the pre-punching process. When the budding die 42 contacts the plate 5 and is ready to continue to punch and budding downwards, the pressure sensor 421 receives the pressure signal and controls the servo motor 121 to drive the drive gear 122 to rotate, and drives the rotating rod 45 to rotate 90° through the transmission gear 452. At this time, the limiting block 451 and the limiting hole 431 correspond to each other, and the budding punch 33 will also push the stripper seat 43 upwards to smoothly realize the budding punching process. After the stamping is completed, the drawing die 42 retracts upward until it separates from the plate 5. At this time, the stripper seat 43 will also retract downward to its original position. The pressure sensor 421 no longer receives the pressure signal and controls the servo motor 121 to drive the drive gear 122 to rotate, so that the rotating rod 45 rotates 90° again. The limit block 451 will be perpendicular to the limit hole 431 again, which is convenient for the next stamping process.

[0057] like Figures 7-10 As shown, the bottom of the stripper seat 43 is flush with the bottom of the drawing die 42, and the depth of the limiting hole 431 is greater than the stamping drawing stroke.

[0058] Specifically, during the budding stamping process, the budding die 42 continuously presses down. Before the guide cone 332 engages with the cone groove 434, the stripper seat 43, under the elastic force of the compression spring 433, can tightly press and constrain the gradually rising bud column 503 within the cavity formed by the inner wall of the budding die 42 and the outer wall of the budding punch 33, preventing the material from wrinkling or moving during the budding process. After the budding stamping is completed, the stripper seat 43, during its downward rebound, can push the formed bud column 503 downward from the budding die 42, achieving stripping. The depth of the limiting hole 431 needs to be greater than the stamping budding stroke, ensuring that the rotating rod 45 will no longer exert a pushing force on the stripper seat 43 during the budding process, avoiding the additional pressure from the stripper seat 43 during the budding process and affecting the material deformation process.

[0059] like Figure 2As shown, conveyor rollers 22 are arranged inside the conveyor table 21, and transition rollers 24 flush with the conveyor rollers 22 are provided at both ends of the stamping table 23. A clearance hole 25 for the budding die 42 to pass through is provided through the center of the stamping table 23. Ear seats 231 are provided on both sides of the stamping table 23. A slide rod 232 is slidably provided inside the ear seat 231. A baffle 233 is fixed at the top of the slide rod 232. A buffer spring 234 is provided between the bottom of the ear seat 231 and the base 11.

[0060] Specifically, the sheet 5 is conveyed to the stamping table 23 by the conveying roller 22. During the budding stamping process, the sheet 5 is pressed tightly onto the lower support plate 32 by the budding die 42 and moves downward with the lower support plate 32. In order to avoid the sheet 5 being deformed during the pressing process due to rigid support, the entire stamping table 23 will move synchronously along the slide bar 232 with the stamping process of the sheet 5, thereby effectively preventing the sheet 5 from bending.

[0061] Furthermore, the upper end of the stamping table 23 is flush with the surface of the conveyor table 21, and the minimum distance between the two transition rollers 24 is less than the length of the plate 5.

[0062] Specifically, the stamping table 23 is lifted upward by the elastic force of the buffer spring 234, and simultaneously constrained and limited by the baffle 233, ensuring that the stamping table 23 is flush with the surface of the conveyor table 21 after each rebound, thus guaranteeing the continuous conveying of the sheet 5. Meanwhile, the sheet 5 is positioned between the transition rollers 24 at both ends, allowing the sheet 5 to be smoothly loaded and unloaded from the stamping table 23 without remaining on it due to the lack of rotational conveying action from the transition rollers 24.

[0063] like Figure 1 As shown, guide posts 15 are distributed at the four corners between the base 11 and the top seat 12, and the stamping plate 14 is slidably installed on the guide posts 15.

[0064] The working principle of this invention is as follows: Figures 1-10As shown, during use, the sheet metal 5 is conveyed to the stamping table 23 via the conveyor table 21 for stamping. The stamping cylinder 13 drives the stamping plate 14 and the upper die assembly 4 to gradually press down. In the initial state, the limiting block 451 and the limiting hole 431 are perpendicularly intersecting each other, and the rotating rod 45 abuts against the top of the stripper seat 43. This allows the pressing action to be directly transmitted to the punch 44. The punch 44 is aligned with the blanking punch 331 in the drawing punch 33. When the punch 44 contacts the sheet metal 5 for stamping, the punch 44 will directly pass through the sheet metal 5 and extend into the blanking punch 331, forming a pre-punched part 501 on the sheet metal 5. When the budding die 42 contacts the sheet 5 and prepares to continue downward budding, the pressure sensor 421 receives a pressure signal and controls the servo motor 121 to drive the drive gear 122 to rotate, and through the transmission gear 452, drives the rotating rod 45 to rotate 90°. At this time, the limiting block 451 and the limiting hole 431 correspond to each other, and the budding punch 33 will also push the stripper seat 43 upward. At this time, the inner wall of the budding die 42 and the outer wall of the punch will be formed by punching a bud pillar 503. After the budding punching is completed, the stripper seat 43 can push the formed bud pillar 503 downward from the budding die 42 during the downward springback process, realizing stripping. Thus, the pre-punching and budding punching processes of the sheet 5 can be realized in one punching process.

[0065] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A stamping forming apparatus for aluminum alloy sheet metal parts, characterized in that, include: The mounting assembly (1) includes a base (11), a top seat (12) and a stamping plate (14). A stamping cylinder (13) is fixedly mounted on the upper end of the top seat (12), and the output end of the stamping cylinder (13) is connected to the stamping plate (14). The conveying assembly (2) includes conveying platforms (21) arranged on both sides of the base (11), the conveying platforms (21) being used to convey plates (5), and a stamping platform (23) that can be raised and lowered with the plates (5) is arranged between the conveying platforms (21). The lower die assembly (3) includes a punch fixing seat (31), a lower support plate (32) and a budding punch (33). The punch fixing seat (31) is fixed on the base (11), and the budding punch (33) is fixed on the punch fixing seat (31). A blanking punch (331) is provided through the budding punch (33). The upper die assembly (4) includes a die fixing seat (41), a budding die (42), a stripper seat (43), a punch (44), and a rotating rod (45). The die fixing seat (41) is fixed to the bottom of the stamping plate (14). The budding die (42) is fixed inside the die fixing seat (41). The stripper seat (43) is located in the inner cavity of the budding die (42). The punch (44) is fixed to the bottom of the stripper seat (43) and extends downward to align with the blanking punch (331). The rotating rod (45) locks or unlocks the stripper seat (43) by rotating. In the locked state, the punch (44) is pushed to cooperate with the blanking punch (331) to pre-punch the plate (5). In the unlocked state, the budding die (42) is pushed to cooperate with the budding punch (33) to punch and bud the plate (5).

2. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 1, characterized in that, A retaining ring (311) is fixedly provided on the inner wall of the die fixing seat (41). A blanking step (312) is provided inside the die fixing seat (41). The budding punch (33) is fixedly installed in the blanking step (312). The lower support plate (32) is movably installed in the die fixing seat (41) and is limited and blocked by the retaining ring (311). A top spring (321) is provided between the bottom of the lower support plate (32) and the die fixing seat (41). A budding punch (322) for the budding punch (33) to extend is provided through the center of the upper end of the lower support plate (32).

3. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 1, characterized in that, The top of the budding punch (33) extends upward and is provided with a guide cone (332). The top edge of the budding punch (33) is provided with a rounded corner (333). The bottom end of the guide cone (332) and the rounded corner (333) are smoothly connected. The top of the guide cone (332) is flush with the upper surface of the lower support plate (32).

4. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 3, characterized in that, A sliding groove (422) is provided on the inner wall of the budding die (42), and sliding blocks (432) are provided on both sides of the stripping seat (43). The sliding blocks (432) are slidably installed in the sliding groove (422). A compression spring (433) is provided between the top of the stripping seat (43) and the budding die (42), and a cone groove (434) is provided at the bottom of the stripping seat (43) for the guide cone (332) to engage.

5. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 1, characterized in that, The top end of the rotating rod (45) is rotatably engaged with the bottom of the output shaft of the stamping cylinder (13) through a rotary joint (453). The bottom end of the rotating rod (45) passes through the die fixing seat (41) and extends into the inner cavity of the budding die (42) and is connected to a limiting block (451). The center of the stripper seat (43) is provided with a limiting hole (431) corresponding to the limiting block (451). The rotating rod (45) is pressed against the top end of the stripper seat (43) or inserted into the limiting hole (431) through the limiting block (451).

6. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 5, characterized in that, A servo motor (121) is fixed on the stamping plate (14). The output end of the servo motor (121) is connected to a drive tooth (122). A transmission tooth (452) is sleeved on the rotating rod (45). The drive tooth (122) meshes with the transmission tooth (452). Pressure sensors (421) are provided at the bottom of both sides of the budding die (42). The pressure sensors (421) are communicatively connected to the servo motor (121).

7. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 6, characterized in that, The bottom of the stripper seat (43) is flush with the bottom of the budding die (42), and the depth of the limiting hole (431) is greater than the stamping budding stroke.

8. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 1, characterized in that, The conveyor table (21) is provided with conveyor rollers (22) arranged inside. The stamping table (23) is provided with transition rollers (24) at both ends that are flush with the conveyor rollers (22). The stamping table (23) is provided with a clearance hole (25) through the center for the budding die (42) to pass through. The stamping table (23) is provided with ear seats (231) on both sides. The ear seats (231) are provided with sliding rods (232) that slide through them. The top of the sliding rods (232) is fixed with a baffle (233). The bottom of the ear seats (231) is provided with a buffer spring (234) between it and the base (11).

9. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 8, characterized in that, The upper end of the stamping table (23) is flush with the surface of the conveyor table (21), and the minimum distance between the transition rollers (24) at both ends is less than the length of the plate (5).

10. The stamping forming apparatus for aluminum alloy sheet metal parts according to claim 1, characterized in that, Guide posts (15) are provided at the four corners between the base (11) and the top seat (12), and the stamping plate (14) is slidably installed on the guide posts (15).

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