A stamping die and a flanging mistake-proofing stamped part

Abstract

The utility model belongs to punch die technical field discloses a kind of stamping die and flanging mistake-proof stamping part, stamping die includes lower die, stamping cylinder and stamping head, it further includes base and top seat, lower die is installed in the top of base, stamping cylinder is installed on top seat, and lifting piece is installed between base and top seat;Stamping head is sleeved and installed with moving plate, and linear array arrangement's limiting rod is symmetrically installed on moving plate, limiting rod is set through top seat at one end far from moving plate, buffer spring group is installed on limiting rod, one end of buffer spring group is installed on moving plate, and other end is installed on top seat, lifting piece is electric push rod, one end of electric push rod is installed in the bottom of top seat, piston end of electric push rod is connected with base, and the top of top seat is provided with the limiting hole corresponding with limiting rod respectively. The utility model not only can realize the efficient, stable, high-quality production of complex small stamping part, but also can effectively buffer the impact force in stamping process and greatly reduce the impact of rigidity.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die and a flanged anti-misalignment stamping part. Background Technology

[0002] In recent years, with the increasingly fierce competition in the automotive market, major automakers have very high requirements for stamping production efficiency and very high labor costs. They all hope to reduce stamping costs by improving the stability of molds. Process engineers design and layout the process steps based on these characteristics of the parts, formulate process documents for the parts, and determine the size of the mold and the number of process steps for producing the parts. For some small parts, it is difficult to achieve the high-speed stamping results in terms of production stability and speed with general automotive mold structures, thus increasing stamping costs. Therefore, we propose a stamping mold and a flanged anti-misalignment stamping part. Utility Model Content

[0003] In view of the problem that the length and width dimensions of existing stamped parts are not much different and cannot be distinguished visually on site, the length and width may be misplaced by the operator during the stamping process, resulting in the scrapping of stamped parts and damage to the mold, this utility model is proposed.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A stamping die includes a lower die, a stamping cylinder, and a stamping head, and also includes a base and a top seat. The lower die is mounted on the top of the base, the stamping cylinder is mounted on the top seat, and a lifting component is installed between the base and the top seat.

[0006] A movable plate is fitted onto the stamping head. Limiting rods arranged in a linear array are symmetrically mounted on the movable plate. The end of each limiting rod away from the movable plate passes through the top seat. A buffer spring assembly is mounted on the limiting rod. One end of the buffer spring assembly is mounted on the movable plate, and the other end is mounted on the top seat.

[0007] As a technical solution for a stamping die according to the present utility model, the lifting component is an electric push rod, one end of which is installed at the bottom of the top seat, and the piston end of the electric push rod is connected to the base.

[0008] As a technical solution of the stamping die of this utility model, the top of the top seat is provided with limiting holes corresponding to the limiting rods respectively, and the limiting holes are adapted to the limiting rods. The moving plate is movably installed below the top seat through the limiting rods and the limiting holes.

[0009] As a technical solution for a stamping die according to the present utility model, the buffer spring assembly includes an inner buffer spring and an outer buffer spring sleeved on the outer surface of the limiting rod. The inner buffer spring is located inside the outer buffer spring. One end of the inner buffer spring is fixedly installed on the moving plate, and the other end is fixedly installed on the top seat. One end of the outer buffer spring is fixedly installed on the moving plate, and the other end is fixedly installed on the top seat.

[0010] As a technical solution for a stamping die part according to the present invention, the inner buffer spring and the outer buffer spring have different stiffnesses.

[0011] A flanged anti-misalignment stamping part, comprising the stamping die as described in any one of the claims;

[0012] It also includes a flanged anti-misalignment stamping part, which has a drawn portion formed by a drawing process and a flanged anti-misalignment edge formed by a flanged process.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. This utility model involves processing workpieces with similar length and width dimensions using drawing and flanging processes before stamping to form a drawn portion and a flanging anti-misalignment edge. Then, using the flanging anti-misalignment edge as a reference, the workpiece is placed in a die cavity for stamping. This serves to guide, position, or prevent incorrect assembly during subsequent assembly, thereby improving the assembly accuracy and reliability of the product. It also enhances the stability, speed, and yield of producing such complex small parts and reduces the overall stamping cost.

[0015] 2. This utility model, by designing a buffer spring group with different stiffnesses and combining it with the precise fit of the limiting rod and the limiting hole, can protect the stamping head, lower die and stamping cylinder to the greatest extent, significantly extend the service life of the die and equipment, reduce maintenance costs and downtime, and reduce noise and vibration, laying the foundation for high-speed, stable and continuous production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0018] Figure 2This is a schematic diagram of the overall bottom view of the present invention.

[0019] Figure 3 This is a schematic diagram of the main structure of the flanged anti-misalignment stamping part of this utility model.

[0020] Figure 4 This is a bottom view of the flanged anti-misalignment stamping part of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Base; 2. Lower mold; 3. Electric push rod; 4. Top seat; 401. Limiting hole; 5. Stamping cylinder; 6. Stamping head; 7. Moving plate; 8. Limiting rod; 9. Inner buffer spring; 10. Outer buffer spring; 11. Drawing section; 12. Flanged anti-misalignment edge. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1-4 A stamping die and a flanged anti-misalignment stamping part are provided. The stamping die and flanged anti-misalignment stamping part include a lower die 2, a stamping cylinder 5 and a stamping head 6, as well as a base 1 and a top seat 4. The lower die 2 is installed on the top of the base 1, the stamping cylinder 5 is installed on the top seat 4, and a lifting component is installed between the base 1 and the top seat 4 to adjust the height between the top seat 4 and the base 1, thereby improving the flexibility of the die.

[0025] A movable plate 7 is sleeved on the stamping head 6. A series of limit rods 8 are symmetrically arranged in a linear array on the movable plate 7. The end of the limit rod 8 away from the movable plate 7 passes through the top seat 4. A buffer spring assembly is installed on the limit rod 8. One end of the buffer spring assembly is installed on the movable plate 7 and the other end is installed on the top seat 4. In application, the buffer spring assembly is connected between the movable plate 7 and the top seat 4. When the stamping head 6 contacts the workpiece and begins to apply pressure, if the impact force is too large or buffering is required, the movable plate 7 will compress the buffer spring assembly, thereby significantly reducing rigid impact, protecting the mold (especially the stamping head 6 and the lower mold 2) and the stamping cylinder 5, extending their service life, and also reducing noise and vibration.

[0026] Reference Figure 1 and Figure 2 The lifting component is an electric push rod 3. One end of the electric push rod 3 is installed at the bottom of the top seat 4, and the piston end of the electric push rod 3 is connected to the base 1. In application, by controlling the stroke and speed of the electric push rod 3, the opening and closing height and speed of the mold can be precisely adjusted to meet different process requirements and improve production efficiency and automation level.

[0027] Reference Figure 1 and Figure 2 The top of the top seat 4 is provided with limiting holes 401 corresponding to the limiting rods 8, and the limiting holes 401 are adapted to the limiting rods 8. The moving plate 7 can be movably installed under the top seat 4 through the limiting rods 8 and the limiting holes 401. In application, the limiting holes 401 provide a precise guide channel for the limiting rods 8, ensuring that the moving plate 7 (and the stamping head 6) can only move smoothly and without deviation along the axial direction (i.e., vertical direction) of the limiting rods 8 during the buffering process, preventing lateral shaking or jamming, ensuring the stability and accuracy of the stamping process, and also protecting the normal operation of the buffer spring assembly.

[0028] Reference Figure 1 and Figure 2 The buffer spring assembly includes an inner buffer spring 9 and an outer buffer spring 10 sleeved on the outer surface of the limiting rod 8. The inner buffer spring 9 is located inside the outer buffer spring 10. One end of the inner buffer spring 9 is fixedly installed on the moving plate 7, and the other end is fixedly installed on the top seat 4. One end of the outer buffer spring 10 is fixedly installed on the moving plate 7, and the other end is fixedly installed on the top seat 4. In application, the sleeved inner buffer spring 9 and outer buffer spring 10 provide two-stage buffering, providing more optimized buffering force at different stages of the stamping process, and more effectively buffering impact energy of different intensities.

[0029] Reference Figure 1 and Figure 2 The inner buffer spring 9 and the outer buffer spring 10 have different stiffnesses. In application, designing inner and outer springs with different stiffnesses (e.g., the inner buffer spring 9 is soft and the outer buffer spring 10 is hard, or vice versa) can achieve non-linear buffering characteristics. The softer spring buffers the impact at the initial contact, and the harder spring begins to play the main buffering role when the impact force increases. This design can more accurately match the buffering force required for different stamping stages, provide smoother and more effective impact absorption, protect the mold and equipment, and improve the forming quality of the workpiece.

[0030] Reference Figures 1-4 A flanged anti-misalignment stamping part, including a stamping die;

[0031] It also includes a flanged anti-misalignment stamping part, which has a drawn portion 11 formed by a drawing process and a flanged anti-misalignment edge 12 formed by a flanged process. In application, the flanged anti-misalignment edge 12 can play a guiding, positioning or preventing incorrect assembly in subsequent assembly, so as to improve the assembly accuracy and reliability of the product. At the same time, it can improve the stability, speed (efficiency) and yield of such complex small parts production, thereby reducing the overall stamping cost.

[0032] The working principle of this utility model is as follows: By using the drawing and flanging processes, workpieces with similar length and width dimensions are processed to form a drawing part 11 and a flanging anti-misalignment edge 12. Then, using the flanging anti-misalignment edge 12 as a reference, the workpiece is placed in the cavity of the lower die 2 for stamping. This serves to guide, position, or prevent incorrect assembly during subsequent assembly, thereby improving the assembly accuracy and reliability of the product. During stamping, the inner buffer spring 9 provides primary buffering, and when the impact force increases, the outer buffer spring 10 plays the main buffering role. At the same time, the limiting hole 401 provides a precise guide channel for the limiting rod 8 to prevent lateral shaking or jamming, ensuring the stability and accuracy of the stamping process. This enables efficient, stable, and high-quality production of complex small stamped parts, while effectively buffering the impact force during the stamping process and significantly reducing rigid impact.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stamping die, comprising a lower die (2), a stamping cylinder (5), and a stamping head (6), characterized in that: It also includes a base (1) and a top seat (4), the lower mold (2) is installed on the top of the base (1), the stamping cylinder (5) is installed on the top seat (4), and a lifting component is installed between the base (1) and the top seat (4); A movable plate (7) is sleeved on the stamping head (6). A series of limiting rods (8) arranged in a linear array are symmetrically installed on the movable plate (7). One end of the limiting rod (8) away from the movable plate (7) passes through the top seat (4). A buffer spring assembly is installed on the limiting rod (8). One end of the buffer spring assembly is installed on the movable plate (7), and the other end is installed on the top seat (4).

2. The stamping die according to claim 1, characterized in that: The lifting component is an electric push rod (3), one end of which is installed at the bottom of the top seat (4), and the piston end of the electric push rod (3) is connected to the base (1).

3. The stamping die according to claim 1, characterized in that: The top of the top seat (4) is provided with a limiting hole (401) corresponding to the limiting rod (8), and the limiting hole (401) is adapted to the limiting rod (8). The moving plate (7) is movably installed below the top seat (4) through the limiting rod (8) and the limiting hole (401).

4. The stamping die according to claim 1, characterized in that: The buffer spring assembly includes an inner buffer spring (9) and an outer buffer spring (10) sleeved on the outer surface of the limiting rod (8). The inner buffer spring (9) is located inside the outer buffer spring (10). One end of the inner buffer spring (9) is fixedly installed on the moving plate (7), and the other end is fixedly installed on the top seat (4). One end of the outer buffer spring (10) is fixedly installed on the moving plate (7), and the other end is fixedly installed on the top seat (4).

5. The stamping die according to claim 4, characterized in that: The inner buffer spring (9) and the outer buffer spring (10) have different stiffnesses.

6. A flanged anti-misalignment stamped part, characterized in that: Including the stamping die as described in any one of claims 1-5; It also includes a flanged anti-misalignment stamping part, which has a drawn portion (11) formed by a drawing process and a flanged anti-misalignment edge (12) formed by a flanged process.

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