Irregular bulging die

Abstract

The utility model relates to the technical field of bulging dies, and discloses an irregular bulging die which comprises a pressure cylinder base and a die base, and a sliding block is arranged on one side of the pressure cylinder base. According to the utility model, the bulging sealing plug transition rod is arranged and used for pressing water, so that the water is formed into a special-shaped metal water pipe, the end part of the metal water pipe is provided with the plug, the plug is pressed and sealed by pressure, a sealing ring is replaced, and the sealing performance is improved. Meanwhile, due to the design of the transition rod, die abrasion caused by internal stress generated in the bulging process can be effectively reduced, the service life of the die is prolonged, and the maintenance cost is reduced. The first cavity mold and the second cavity mold can be designed into different shapes so as to adapt to production of special-shaped pipe fittings of various specifications. In addition, the die base is made of a high-wear-resistance material, so that the overall durability of the die is enhanced. Through the design, the precision of special-shaped bulging of the metal water pipe is guaranteed, the production efficiency is remarkably improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bulging dies, in particular to an irregular bulging die. Background Art

[0002] Bulging mainly includes two categories: undulating forming and bulging of hollow blanks.

[0003] Bulging is a stamping forming process in which high-pressure liquid, gas is passed inside a tube blank or on one side of a sheet blank, or a rigid die segment is placed to force the tube or sheet to plastically deform to form a workpiece. Bulging is to use a die to reduce the thickness of the blank and increase the surface area. It is a stamping processing method to obtain the geometric shape of the part. Bulging, also known as the undulating forming method, is mainly used for local forming of flat blanks, such as pressing protrusions, reinforcing ribs, pits, pattern patterns and marks, etc. In addition, there is also the bulging of tubular hollow blanks (such as corrugated pipes) and the tension forming of flat blanks, etc. During the deep drawing of curved parts, bulging deformation will also occur in the middle part of the blank. In the stamping forming process of large panel parts, in order to make the blank fit the die well and improve the accuracy and stiffness of the formed part, the part must obtain a certain amount of bulging. Therefore, like bending and deep drawing before, bulging is also one of the basic methods of stamping forming.

[0004] There are various processing methods for pipe fittings, and the commonly used ones include stamping method, forging method, roller processing method, rolling method, etc. The processing of pipe fittings is usually an organic combination of machining and metal pressure processing. The common forging method is to use a forging machine to punch and stretch the end or a part of the pipe blank to reduce the outer diameter of the pipe blank. The stamping method is to use a tapered mandrel on a punching press to expand the pipe end to the required size and shape.

[0005] For the current special-shaped pipes, the inner and outer diameters of the pipe fittings change irregularly along their own length directions. Therefore, the shape of the pipe fittings is not a common cylindrical or conical shape, and the circumferential surface of the pipe fittings fluctuates. It is difficult to process the pipe blank into special-shaped pipe fittings by using stamping or forging methods, and the processing difficulty is large, and the errors of geometric shape and dimensional accuracy are relatively large.

[0006] Therefore, we need to provide a new type of irregular bulging die. Content of the Utility Model

[0007] The purpose of the utility model is to provide an irregular bulging die to solve the problems raised in the above background art.

[0008] To achieve the above purpose, the utility model provides the following technical solution: an irregular bulging die, including a pressure cylinder base and a die base. A slider is arranged on one side of the pressure cylinder base, a product cavity die is arranged on the top of the die base, an irregular pipe product cavity is arranged inside the product cavity die, and a die top seat is fixedly arranged on the top of the product cavity die.

[0009] Preferably, a plug connecting rod is connected to the outer surface of the slider, and the other end of the plug connecting rod is threadedly connected with a bulging sealing plug transition rod for pressing water into it to form a metal water pipe with a special-shaped cross-section by water forming.

[0010] Preferably, the other end of the bulging sealing plug transition rod is threadedly connected with a hard sealing plug, and the hard sealing plug is used to press and seal with the product cavity mold under pressure.

[0011] Preferably, the product cavity mold is divided into a cavity mold one and a cavity mold two.

[0012] The utility model provides an irregular bulging mold, which has the following beneficial effects:

[0013] (1) By setting a hard sealing plug in the utility model, a hard sealing plug is adopted, and the water is sealed by an automatic pressure oil cylinder, replacing the manual plugging of the plug, improving the efficiency, pressing water into it to form a metal water pipe with a special-shaped cross-section by water forming, and improving the quality of the product. The automatic production is realized, the labor cost is reduced, and at the same time, due to the improvement of the sealing performance, the leakage problem that may occur during the bulging process is effectively avoided, ensuring the accuracy and stability of the special-shaped pipe fittings. In addition, through the subdivision design of the cavity mold, it can adapt to the production of more types of special-shaped pipe fittings, greatly improving the application range and flexibility of the mold.

[0014] (2) By setting a bulging sealing plug transition rod in the utility model, it is used to press water into it to form a metal water pipe with a special-shaped cross-section by water forming. A plug is arranged at its end, and the sealing is pressed tightly by using pressure, replacing the sealing ring and improving the sealing performance. At the same time, the design of this transition rod can also effectively reduce the mold wear caused by the internal stress generated during the bulging process, extend the service life of the mold, and reduce the maintenance cost. The cavity mold one and the cavity mold two can be respectively designed into different shapes to adapt to the production of special-shaped pipe fittings of various specifications. In addition, the mold base is made of high wear-resistant materials, enhancing the overall durability of the mold. Through this design, not only the accuracy of the special-shaped bulging of the metal water pipe is ensured, but also the production efficiency is significantly improved, and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional view of the overall structure of the utility model;

[0016] Figure 2 It is a schematic structural view of the cavity mold one and the cavity mold two of the utility model;

[0017] Figure 3 It is a schematic view of the structure of the utility model.

[0018] In the figure: 11 is the base of the pressure cylinder, 12 is the slider, 13 is the base of the mold, 14 is the top seat of the mold, 15 is the plug connecting rod, 16 is the transition rod of the bulging sealing plug, 17 is the hard sealing plug, 18 is the cavity of the special-shaped pipe product, 2 is the cavity mold of the product, 21 is the first cavity mold, and 22 is the second cavity mold. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] A preferred embodiment of an irregular bulging mold provided by the present invention is as Figures 1-3As shown: An irregular bulging die, including a pressure cylinder base 11 and a die base 13. A slider 12 is arranged on one side of the pressure cylinder base 11. A product cavity die 2 is arranged on the top of the die base 13. An irregular pipe product chamber 18 is arranged inside the product cavity die 2. A die top seat 14 is fixedly arranged on the top of the product cavity die 2; A plug connecting rod 15 is connected to the outer surface of the slider 12. The other end of the plug connecting rod 15 is threadedly connected to a bulging seal plug transition rod 16 for pressing water in to form a metal water pipe with an irregular shape by water forming. The other end of the bulging seal plug transition rod 16 is threadedly connected to a hard seal plug 17. The utility model carefully designs and sets a hard seal plug 17. This plug adopts a hard seal plug technology and can automatically use a pressure oil cylinder for water sealing operation. This innovative design successfully replaces the traditional manual plugging method and significantly improves work efficiency. In this way, water can be easily pressed into the die to form various irregularly shaped metal water pipes under high pressure. This automated and highly precise manufacturing process not only greatly improves production efficiency but also ensures high-quality standards of the products and improves the improvement of metal water pipes. And the hard seal plug 17 is tightly sealed with the product cavity die 2 by pressure; The product cavity die 2 is divided into a cavity die one 21 and a cavity die two 22. The utility model carefully designs and sets a bulging seal plug transition rod 16. The function of this transition rod is to press water into it, thereby realizing water forming processing of the metal water pipe to form various irregularly shaped metal water pipes. At the end of the metal water pipe, a plug is specially arranged. By applying a certain pressure, the plug is tightly combined with the metal water pipe, thereby achieving a sealing effect. This design cleverly replaces the traditional sealing ring and significantly improves the sealing performance, ensuring the sealing reliability of the entire system. In this way, not only is the production efficiency improved, but also the leakage risk that may be caused by poor sealing is reduced, thereby enhancing the overall service performance and safety.

[0022] During use, by using a pressure cylinder, water is made to flow along the bulging seal plug transition rod 16 into the irregular pipe product chamber 18 by utilizing pressure. After cooling, it is automatically formed into an irregular pipe. Among them, by using the hard seal plug 17 and adopting a hard seal plug, automatic pressure oil cylinder water sealing is carried out, replacing manual plugging, improving efficiency, pressing water in to form an irregularly shaped metal water pipe by water forming, and improving the quality of the product.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used 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 recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An irregular bulging die, comprising a pressure cylinder base (11) and a die base (13), characterized in that: One side of the pressure cylinder base (11) is provided with a slider (12). The top of the mold base (13) is provided with a product cavity mold (2). An irregular pipe product cavity (18) is arranged inside the product cavity mold (2). A mold top seat (14) is fixedly arranged at the top of the product cavity mold (2).

2. An irregular bulging die according to claim 1, characterized in that: A plug connecting rod (15) is connected to the outer surface of the slider (12). The other end of the plug connecting rod (15) is threadedly connected to a bulging seal plug transition rod (16) for pressing water into it to form a metal water pipe with an irregular shape by water forming.

3. The irregular bulging die according to claim 2, characterized in that: The other end of the bulging seal plug transition rod (16) is threadedly connected to a hard seal plug (17), and the product cavity mold (2) is tightly sealed under pressure through the hard seal plug (17).

4. An irregular bulging die according to claim 1, characterized in that: The product cavity mold (2) is divided into a cavity mold one (21) and a cavity mold two (22).

Images