Multi-station cold-die structure

Abstract

The utility model discloses a kind of be applicable to multi-station cold-die structure, including general cushion block seat, with the main mould component of general cushion block seat fixed connection and positioning pin;The general cushion block seat one side outer surface is equipped with ladder groove, main mould component includes convex fixed disc, connecting barrel and forming piece, convex fixed disc protruding end is fixed in ladder groove, through hole is equipped in convex fixed disc, connecting barrel is installed in through hole by hot-press fit, forming piece is installed in connecting barrel by hot-press fit, the utility model structure is simple, easy to disassemble and assemble, in actual production, which position damage only needs to replace partial accessory, need not to make overall mould again, save production debugging cost, also improve mould manufacturing efficiency.Moreover, when mould is damaged, production personnel only need to disassemble and assemble partial small accessory, need not to disassemble and assemble overall mechanism, also improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of multi-station cold heading mold technology, and in particular to a structure suitable for multi-station cold heading mold. Background Technology

[0002] The domestic cold heading machine market continued to expand in 2025, making China a significant global market for cold heading machines. Due to the high precision and efficiency of products produced by cold heading machines, many high-volume parts orders utilize this technology. Traditional cold heading dies are designed as integral structures. If a die is damaged during production, it needs to be replaceable quickly without compromising precision. The current traditional approach is to dismantle the entire die structure and replace it with a new one, significantly impacting production efficiency. In reality, the damage might only be localized, necessitating a complete replacement, especially for fragile dies. Because the die structure is integral, even minor damage requires replacement of the entire structure, greatly increasing costs. To address these issues, some die manufacturers produce modular die structures, but these lack versatility.

[0003] To address the shortcomings of existing technologies, it is necessary to design a structure suitable for multi-station cold heading molds. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a structure for multi-station cold heading molds.

[0005] A structure for a multi-station cold heading mold includes a universal pad seat, a main mold assembly fixedly connected to the universal pad seat, and a positioning pin. A stepped groove is formed on one outer surface of the universal pad seat. The main mold assembly includes a convex fixing plate, a connecting cylinder, and a molded part. The protruding end of the convex fixing plate is fixed in the stepped groove. A through hole is formed on the convex fixing plate. The connecting cylinder is installed in the through hole by thermoforming, and the molded part is installed in the connecting cylinder by thermoforming. A through pin hole is formed on the convex fixing plate, and a blind pin hole is formed on the universal pad seat. The two pin holes are positioned correspondingly, and the positioning pin passes through the through pin hole and the blind pin hole sequentially.

[0006] Furthermore, the stepped groove has several countersunk holes at the stepped portion, and the convex fixing plate is fixed in the countersunk holes by bolts.

[0007] Furthermore, the shape and size of the protruding end of the convex fixing plate are adapted to the shape and size of the stepped groove.

[0008] Furthermore, an ejector cavity is provided at the center of the universal pad seat, and the position of the molded part corresponds to it.

[0009] Furthermore, the stepped groove is located at the center of the universal pad seat, and the blind pin hole 1c is set on the step of the stepped groove 1a.

[0010] Furthermore, both the universal pad seat and the convex fixing plate are provided with positioning flat positions.

[0011] Beneficial Effects: This utility model can be applied to most commonly used molds in cold heading machines on the market. It features a simple structure, easy assembly and disassembly, and is cheaper than existing mold structures, making it easy to promote in large quantities. Using this mold structure eliminates the need for large amounts of material during manufacturing; only a few key small parts need to be prepared according to the actual product requirements and then assembled into the main mold component, forming a combined structure. In actual production, only the damaged parts need to be replaced, eliminating the need to remake the entire mold, saving production and debugging costs and improving mold manufacturing efficiency. Furthermore, when the mold is damaged, production personnel only need to disassemble and assemble the small parts, without disassembling the entire mechanism, further improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention applicable to multi-station cold heading molds; Figure 2 This is a three-dimensional structural diagram of the universal pad block seat and main mold assembly of this utility model after disassembly; Figure 3 This is a cross-sectional view of the present invention at the bolt location; Figure 4 This is a cross-sectional view of the present invention at the locating pin. In the picture: 1. General-purpose pad seat; 1a. Stepped groove; 1b. Ejection cavity; 1c. Blind pin hole; 2. Main mold assembly; 21. Convex fixing plate; 21a. Through pin hole; 22. Connecting cylinder; 23. Molded part. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please refer to Figures 1-4This embodiment proposes a structure suitable for multi-station cold heading molds, including a universal pad seat 1, a main mold assembly 2 fixedly connected to the universal pad seat 1, and positioning pins; a stepped groove 1a is formed on one outer surface of the universal pad seat 1, and the stepped groove 1a is located at the center of the universal pad seat 1. The main mold assembly 2 includes a convex fixing plate 21, a connecting cylinder 22, and a forming part 23. The protruding end of the convex fixing plate 21 is fixed in the stepped groove 1a. The shape and size of the protruding end of the convex fixing plate 21 are adapted to the shape and size of the stepped groove 1a. The arrangement of the stepped groove 1a and the convex fixing plate 21 allows the stepped groove 1a and the protruding end of the convex fixing plate 21 to cooperate, ensuring a stable fixation. A through hole is formed on the convex fixing plate 21, connecting... The connecting sleeve 22 is installed in the through hole via thermoforming, and the molded part 23 is installed in the connecting sleeve 22 via thermoforming. The molded part 23 is a relatively easily damaged component in the main mold assembly 2. By setting the connecting sleeve 22 between the molded part 23 and the convex fixing plate 21, the two can be isolated, extending the service life of the convex fixing plate 21. When the molded part 23 is damaged, it can be pressed out and replaced with another one via thermoforming. The convex fixing plate 21 has a through pin hole 21a, and the universal pad seat 1 has a blind pin hole 1c. The blind pin hole 1c is located on the step of the stepped groove 1a, and the two pin holes are positioned correspondingly. The positioning pin passes through the through pin hole 21a and the blind pin hole 1c in sequence to position the convex fixing plate 21 and the universal pad seat 1. With this mold structure, the mold does not require the preparation of a large amount of material for processing during the manufacturing process. Only a few key small parts need to be prepared according to the actual product situation, and then assembled into the main mold assembly 2 to form a combined structure.

[0015] This invention features a simple structure, is easy to assemble and disassemble, and has a low mold manufacturing cost. In actual production, if damage occurs, only the damaged portion needs to be replaced, while the remaining parts can be recycled, facilitating rapid on-site replacement. The mold inventory only requires the preparation of some easily damaged components, saving on mold spare parts costs.

[0016] The convex fixing plate 21 is fixed in the following way: several countersunk holes are opened at the step of the stepped groove 1a, and the convex fixing plate 21 is fixed in the countersunk holes by bolts.

[0017] The universal pad seat 1 has an ejection cavity 1b at its center, the size of which can be set according to actual needs. The position of the molded part 23 corresponds to it. After the product is produced, the product in the molded part 23 is ejected through the ejection cavity 1b, and the present invention is placed into the equipment cavity. The universal pad seat 1 is then locked with bolts on the equipment. The universal pad seat 1 and the convex fixing plate 21 are both provided with positioning flats for easy positioning during installation.

[0018] When the mold is normal, the equipment will operate normally. If the mold is abnormal and needs to be replaced, first pull out the positioning pin, then loosen the bolts, and take out the main mold assembly 2. It is not necessary to disassemble the entire mold. Only the damaged part of the main mold assembly 2 needs to be replaced. The remaining parts can be recycled, which reduces costs to a certain extent.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure suitable for multi-station cold heading molds, characterized in that: The assembly includes a universal pad seat (1), a main mold assembly (2) fixedly connected to the universal pad seat (1), and a positioning pin. A stepped groove (1a) is provided on one outer surface of the universal pad seat (1). The main mold assembly (2) includes a convex fixing plate (21), a connecting cylinder (22), and a molding part (23). The convex fixing plate (21) has a protruding end fixed in the stepped groove (1a). A through hole is provided on the convex fixing plate (21). The connecting cylinder (22) is installed in the through hole by hot pressing. The molding part (23) is installed in the connecting cylinder (22) by hot pressing. A through pin hole (21a) is provided on the convex fixing plate (21). A blind pin hole (1c) is provided on the universal pad seat (1). The two pin holes are in corresponding positions. The positioning pin passes through the through pin hole (21a) and the blind pin hole (1c) in sequence.

2. The structure of a multi-station cold heading mold according to claim 1, characterized in that: The stepped groove (1a) has several countersunk holes at the stepped part, and the convex fixing plate (21) is fixed in the countersunk hole by bolts.

3. The structure of a multi-station cold heading mold according to claim 1, characterized in that: The shape and size of the protruding end of the convex fixing plate (21) are adapted to the shape and size of the stepped groove (1a).

4. The structure of a multi-station cold heading mold according to claim 1, characterized in that: An ejector cavity (1b) is provided at the center of the universal pad seat (1), and the position of the molded part (23) corresponds to it.

5. The structure of a multi-station cold heading mold according to claim 1, characterized in that: The stepped groove (1a) is located at the center of the universal pad seat (1), and the blind pin hole (1c) is set on the step of the stepped groove (1a).

6. The structure of a multi-station cold heading mold according to claim 1, characterized in that: Both the universal pad seat (1) and the convex fixing plate (21) are provided with positioning flat positions.

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