High-precision punching and flanging progressive stamping forming die for automobile front frame

Abstract

The utility model provides a high -precision punching flanging stage progression stamping forming die of car front frame, including stamping upper die plate, stamping lower die plate and oil cylinder part, the bottom one side of stamping upper die plate, stamping upper die plate installs rotary motor, and the output shaft of rotary motor installs swing strip, and one end of swing strip installs semicircular wiping sleeve, and the wiping inner ring of semicircular wiping sleeve is connected with punch bit. The utility model discloses a rotary motor is installed on the bottom one side of stamping upper die plate, and the output shaft of rotary motor installs swing strip, and the wiping inner ring of semicircular wiping sleeve is connected with punch bit in the one end of swing strip and installs semicircular wiping sleeve, can be wiped operation to punch bit of stamping after stamping reset, makes punch bit surface clean and neat, avoids the influence of subsequent stamping on punching precision.

Description

Technical Field

[0001] This utility model belongs to the field of stamping forming die technology, and relates to a high-precision punching and flanging progressive stamping forming die for automobile front frame. Background Technology

[0002] The front subframe is a crucial component in the chassis system, primarily connecting the body, engine mounts, and suspension. It reduces the transmission of road vibrations and noise to the vehicle body. The front subframe also improves suspension stiffness, resulting in better overall vehicle durability and comfort. Furthermore, in automotive chassis technology, the safety and reliability of the front subframe directly impacts driving and pedestrian safety.

[0003] The front subframe will have multiple holes for its installation. Progressive stamping dies are usually used to punch these holes. However, the existing progressive stamping dies have the disadvantage that the punching cutter needs to punch continuously, and the waste material stuck to the punched hole cannot be cleaned in time. This can easily affect the accuracy of the next hole when punching again. To address this, we have designed a high-precision progressive stamping die for punching and flanging on the front frame of an automobile. Summary of the Invention

[0004] The purpose of this invention is to provide a high-precision punching and flanging progressive stamping die for automotive front frames, in order to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solution: a high-precision punching and flanging progressive stamping forming die for an automotive front frame, comprising an upper stamping die, a lower stamping die, and a hydraulic cylinder. The upper and lower stamping dies are arranged vertically. The hydraulic cylinder is mounted on the top center of the upper stamping die via a bracket. A cutter head fixing seat is installed at the center of the bottom of the upper stamping die. A punching cutter head is installed at the bottom of the cutter head fixing seat. A rotary motor is installed on one side of the bottom of the upper stamping die. A swing bar is installed on the output shaft of the rotary motor. A semi-circular wiping sleeve is installed at one end of the swing bar. The inner wiping ring of the semi-circular wiping sleeve is connected to the punching cutter head.

[0006] The aforementioned high-precision punching and flanging progressive stamping die for automotive front frames also includes a die support. This die support is connected to the hydraulic cylinder section and the lower stamping template, and it limits the movement of the hydraulic cylinder section and the lower stamping template. The purpose of this design is to connect the hydraulic cylinder section and the lower stamping template via the overall die support, achieving good positional stability and overall structural stability.

[0007] In the aforementioned high-precision punching and flanging progressive stamping die for an automotive front frame, guide rod fixing seats are installed on both sides of the bottom end of the upper stamping die, and guide rods are installed inside the guide rod fixing seats. Two guide connecting blocks are installed at the extension rod of the die support, and a guide wrapping part is installed at one end of each guide connecting block. A ball bearing is installed inside the guide wrapping part. The purpose of this arrangement is to provide good guidance, so that when the upper stamping die moves relative to the lower stamping die, it has good motion accuracy, reduces deviations caused by movement, and prevents punching offset.

[0008] In the aforementioned high-precision punching and flanging progressive stamping die for automotive front frames, a stamping platform is installed at the center of the top of the lower stamping die. Multiple buffer pillars are provided at the bottom of the stamping platform and connected to the top surface of the lower stamping die. This design aims to provide good load-bearing capacity for the automotive front frame, allowing for a certain degree of buffer displacement during the stamping process and reducing the impact of stamping pressure on the frame.

[0009] The aforementioned high-precision punching and flanging progressive stamping die for a car front frame also includes a linear track distributed along the length of the lower stamping die. Two moving blocks are slidably arranged at the slide of the linear track, and a frame limiting clamp is installed at one end of each of the two moving blocks. The purpose of this arrangement is to provide good clamping of the car front frame while enabling the car front frame to achieve progressive movement, thereby accelerating the stamping efficiency.

[0010] Compared with the prior art, the advantages of this utility model of high-precision punching and flanging progressive stamping forming die for automobile front frame are as follows: a rotary motor is installed on one side of the bottom of the upper stamping template, a swing bar is installed on the output shaft of the rotary motor, and a semi-circular wiping sleeve is installed at one end of the swing bar. The inner ring of the semi-circular wiping sleeve is connected to the punching head. This allows the punching head to be wiped after the stamping reset, making the surface of the punching head clean and tidy, and avoiding the impact of subsequent stamping on the punching accuracy. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the high-precision punching and flanging progressive stamping die for an automotive front frame, as described in this utility model. Figure 1 .

[0012] Figure 2 This is a three-dimensional structural schematic diagram of the guide rail for the high-precision punching and flanging progressive stamping forming die for the front frame of an automobile.

[0013] Figure 3 This is a three-dimensional structural diagram of the high-precision punching and flanging progressive stamping die for an automotive front frame, as described in this utility model. Figure 2 .

[0014] Figure 4 This is a schematic diagram of the upper stamping template of the high-precision punching and flanging progressive stamping forming die for automobile front frame.

[0015] Figure 5 This is a schematic diagram of the guide rod and guide connecting block of the high-precision punching and flanging progressive stamping forming die for the front frame of an automobile.

[0016] In the diagram, 1. Upper stamping die; 2. Lower stamping die; 3. Hydraulic cylinder; 4. Die support; 5. Guide rod; 6. Guide connecting block; 7. Stamping table; 8. Buffer column; 9. Linear track; 10. Chassis limiting fixture; 11. Moving block; 12. Cutter head fixing seat; 13. Punching cutter head; 14. Rotary motor; 15. Swing bar; 16. Semi-circular wiping sleeve; 17. Guide rod fixing seat; 18. Guide wrapping part; 19. Ball bearing. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 and Figure 2 As shown, this is a high-precision punching and flanging progressive stamping die for a car front frame; to prevent dust from falling onto the guide rail 104, a semi-enclosed design is implemented as follows:

[0019] Example 1: The stamping die includes an upper template 101 and a lower template base 102. The upper template 101 is driven to the lower template base 102 via a hydraulic cylinder. An integrally formed stamping plate 103 is provided between the upper template 101 and the lower template base 102.

[0020] A guide rail 104 that can enter the front frame of a car is also provided between the upper template 101 and the stamping plate 103. A frame limiting seat 105 is installed at the edge of the guide rail 104 to limit the front frame of the car.

[0021] like Figure 3 , Figure 4 and Figure 5 As shown, an open design is adopted for easy management of the cleaning guide rail (104):

[0022] Example 2: The progressive stamping die includes an upper stamping die 1, a lower stamping die 2, and a hydraulic cylinder 3. The upper stamping die 1 and the lower stamping die 2 are arranged vertically. The hydraulic cylinder 3 is mounted on the top center of the upper stamping die 1 via a bracket. A cutter head fixing seat 12 is installed at the center of the bottom of the upper stamping die 1, and a punching cutter head 13 is installed at the bottom of the cutter head fixing seat 12. A rotary motor 14 is installed on one side of the bottom of the upper stamping die 1, and a swing bar 15 is installed on the output shaft of the rotary motor 14. A semi-circular wiping sleeve 16 is installed at one end of the swing bar 15, and the inner wiping ring of the semi-circular wiping sleeve 16 is connected to the punching cutter head 13. Further, it includes a linear track 9 distributed along the length of the lower stamping die 2. Two moving blocks 11 are slidably arranged at the slide of the linear track 9, and a frame limiting clamp 10 is installed at one end of each of the two moving blocks 11. The linear track 9 enables the front frame of the automobile to achieve progressive motion (movement along the linear track 9), thereby accelerating the stamping efficiency.

[0023] Example 3: The progressive stamping die includes an upper stamping die 1, a lower stamping die 2, and a cylinder 3. The upper stamping die 1 and the lower stamping die 2 are arranged vertically. The cylinder 3 is mounted on the top center of the upper stamping die 1 via a bracket. A cutter head fixing seat 12 is installed at the center of the bottom of the upper stamping die 1. A punching cutter head 13 is installed at the bottom of the cutter head fixing seat 12. A rotary motor 14 is installed on one side of the bottom of the upper stamping die 1. A swing bar 15 is installed on the output shaft of the rotary motor 14. A semi-circular wiping sleeve 16 is installed at one end of the swing bar 15. The inner wiping ring of the semi-circular wiping sleeve 16 is connected to the punching cutter head 13.

[0024] Furthermore, in order to ensure a firm connection and relatively stable position between the cylinder part 3 and the lower stamping template 2, a mold support 4 is also provided. The mold support 4 is connected to the cylinder part 3 and the lower stamping template 2 and limits the position of the cylinder part 3 and the lower stamping template 2.

[0025] Example 4: A progressive stamping die includes an upper stamping die 1, a lower stamping die 2, and a hydraulic cylinder 3. The upper stamping die 1 and the lower stamping die 2 are arranged vertically. The hydraulic cylinder 3 is mounted on the top center of the upper stamping die 1 via a bracket. A cutter head fixing seat 12 is installed at the center of the bottom of the upper stamping die 1, and a punching cutter head 13 is installed at the bottom of the cutter head fixing seat 12. Two guide connecting blocks 6 are installed at the extension rod of the die bracket 4. Each of the two guide connecting blocks 6 has a guide wrapping part 18 installed at one end, and a ball bearing 19 is installed inside the guide wrapping part 18. Guide rod fixing seats 17 are installed on both sides of the bottom of the upper stamping die 1, and guide rods 5 are installed inside the guide rod fixing seats 17. The guide rods 5 are slidably connected to the guide wrapping parts 18 of the guide connecting blocks 6, which ensures the stability of the upper stamping die 1 sliding relative to the lower stamping die 2.

[0026] Example 5: A progressive stamping die includes an upper stamping die 1, a lower stamping die 2, and a hydraulic cylinder 3. The upper stamping die 1 and the lower stamping die 2 are arranged vertically. The hydraulic cylinder 3 is mounted on the top center of the upper stamping die 1 via a bracket. A cutter head fixing seat 12 is installed at the center of the bottom of the upper stamping die 1, and a punching cutter head 13 is installed at the bottom of the cutter head fixing seat 12. A rotary motor 14 is installed on one side of the bottom of the upper stamping die 1, and a swing bar 15 is installed on the output shaft of the rotary motor 14. A semi-circular wiping sleeve 16 is installed at one end of the swing bar 15, and the inner wiping ring of the semi-circular wiping sleeve 16 is connected to the punching cutter head 13. A stamping table 7 is installed at the center of the top of the lower stamping die 2, and multiple buffer pillars 8 are provided at the bottom of the stamping table 7 and connected to the top surface of the lower stamping die 2.

[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A high-precision progressive stamping die for a front frame of an automobile, comprising an upper stamping die (1), a lower stamping die (2), and a hydraulic cylinder (3), wherein the upper stamping die (1) and the lower stamping die (2) are arranged vertically, the hydraulic cylinder (3) is mounted on the top center of the upper stamping die (1) via a bracket, a cutter head fixing seat (12) is mounted on the bottom center of the upper stamping die (1), and a punching cutter head (13) is mounted on the bottom end of the cutter head fixing seat (12), characterized in that, A rotary motor (14) is installed on one side of the bottom end of the upper stamping template (1). A swing bar (15) is installed on the output shaft of the rotary motor (14). A semi-circular wiping sleeve (16) is installed at one end of the swing bar (15). The inner wiping ring of the semi-circular wiping sleeve (16) is connected to the punching head (13).

2. The high-precision punching and flanging progressive stamping die for automotive front frames according to claim 1, characterized in that, It also includes a mold support (4), which is connected to the cylinder part (3) and the lower stamping template (2) and limits the cylinder part (3) and the lower stamping template (2).

3. The high-precision punching and flanging progressive stamping die for automotive front frames according to claim 2, characterized in that, Guide rod fixing seats (17) are installed on both sides of the bottom end of the upper stamping template (1), and guide rods (5) are installed inside the guide rod fixing seats (17).

4. The high-precision punching and flanging progressive stamping die for automotive front frames according to claim 3, characterized in that, Two guide connecting blocks (6) are installed at the extension rod of the mold support (4). One end of each guide connecting block (6) is equipped with a guide wrapping part (18), and a ball bearing (19) is installed inside the guide wrapping part (18).

5. The high-precision punching and flanging progressive stamping die for automotive front frames according to claim 1, characterized in that, A stamping plate (7) is installed in the middle of the top of the stamping lower template (2), and multiple buffer columns (8) are provided at the bottom of the stamping plate (7) and connected to the top surface of the stamping lower template (2).

6. The high-precision punching and flanging progressive stamping die for automotive front frames according to claim 1, characterized in that, It also includes a linear track (9) distributed along the length of the stamping template (2), and two moving blocks (11) are slidably arranged at the slide of the linear track (9), and a frame limiting clamp (10) is installed at one end of each of the two moving blocks (11).

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