Stainless steel internal high-pressure forming die
By employing a split-structure punch and pressurizing component in the stainless steel internal high-pressure forming mold, and utilizing a dual water circuit system to stabilize the water pressure, the problem of incomplete cavity filling caused by unstable machine water pressure was solved, achieving high-precision forming and low-cost maintenance.
Patent Information
- Application Number
- CN202423058512.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-11
AI Technical Summary
When using existing molds for high-pressure forming inside stainless steel tubes, unstable water pressure on the machine results in incomplete product cavities and non-compliant external dimensions. Furthermore, mold replacement is inefficient and costly.
Design a stainless steel internal high-pressure forming mold, which adopts a split structure punch and pressurizing component, and controls water pressure through a dual water circuit system to ensure that the cavity is filled and extruded stably, and the parts can be quickly replaced.
It improves the precision and yield of stainless steel internal high-pressure forming products, reduces mold maintenance costs, and increases mold change efficiency.
Smart Images
Figure CN223588165U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of pipe fittings, and particularly relates to a stainless steel internal high-pressure forming die. BACKGROUND
[0002] When the existing die punch is used for internal high-pressure forming of a stainless steel pipe, the forming pressure mainly comes from the water pressure of a machine table. If the water pressure of the machine table is unstable, the product cavity is not full, the external dimension is not up to standard, and the like, and the product is scrapped. CONTENT OF THE UTILITY MODEL
[0003] In order to overcome the above-mentioned defects in the prior art, the purpose of the application is to provide a stainless steel internal high-pressure forming die, improve the precision of the stainless steel internal high-pressure forming product, improve the die changing efficiency, reduce the die cost, and improve the finished product rate of production.
[0004] The technical means adopted by the application to solve the above-mentioned technical problems is:
[0005] The application provides a stainless steel internal high-pressure forming die, which comprises:
[0006] A punch is provided with an inner cavity. One end of the punch is provided with a first water outlet, and the other end of the punch is provided with a first extrusion opening. A first water inlet is arranged on the side wall of the punch. The first water outlet, the first extrusion opening and the first water inlet are respectively communicated with the inner cavity.
[0007] A booster assembly is inserted into the first extrusion opening at one end. The booster assembly is provided with a piston cavity. The other end of the booster assembly is provided with a second water inlet and a second water outlet. The second extrusion opening, the second water inlet and the second water outlet are respectively communicated with the piston cavity.
[0008] A piston is slidably installed in the piston cavity.
[0009] Preferably, one end of the punch is provided with a supporting clamping groove.
[0010] Preferably, a first sealing ring is arranged between the punch and the booster assembly.
[0011] Preferably, the booster assembly comprises a booster cylinder and a punch pin seat. The piston cavity and the second extrusion opening are arranged in the booster cylinder, and the second water inlet and the second water outlet are arranged in the punch pin seat.
[0012] Preferably, a second sealing ring is arranged between the booster cylinder and the punch pin seat.
[0013] Preferably, the bottom of the punch pin seat is provided with a supporting plate.
[0014] Compared with the prior art, the stainless steel internal high-pressure forming die of the present application is provided with a pressure boosting assembly. When the valve opening the first water inlet to the outside is opened, water enters the punch from the first water inlet, and water enters the product cavity from the first water outlet, while the external drain valve corresponding to the second water outlet is opened and the external water inlet valve corresponding to the second water inlet is closed. Under the action of water pressure, the piston moves downward until the bottom of the pressure boosting assembly. When the cavity of the stainless steel pipe is filled with water, the external water inlet valve corresponding to the first water inlet is closed, the external drain valve of the second water outlet is closed, and the external water inlet valve of the second water outlet and the second water inlet is opened. Water enters from the second water outlet and the second water inlet. Under the action of water pressure, the piston moves to the punch part, and then extrudes the water in the inner cavity, so that the water in the inner cavity extrudes the product, which provides strong guarantee for the dimensional stability of the stainless steel product. In addition, the punch and the pressure boosting assembly are in a split structure, and when one of the parts is damaged, it can be quickly replaced, greatly improving the mold changing efficiency and saving the mold cost. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0016] Fig. 1 The structure of the stainless steel internal high-pressure forming die of the present application is shown in the figure.
[0017] Fig. 2 The product cavity water inlet state diagram of the stainless steel internal high-pressure forming die of the present application is shown in the figure.
[0018] Fig. 3 The extrusion state diagram of the stainless steel internal high-pressure forming die of the present application is shown in the figure.
[0019] Label explanation:
[0020] 100, product cavity;
[0021] 1, punch; 1a, first water inlet; 1b, first water outlet; 1c, first extrusion port; 2, pressure boosting assembly; 2a, second water inlet; 2b, second water outlet; 2c, second extrusion port; 2d, pressure boosting cylinder; 2e, punch pin seat; 3, piston. DETAILED DESCRIPTION
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0023] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. Similar reference numerals and letters denote similar items in the following figures; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] like Figs. 1-3 As shown, this embodiment provides a stainless steel internal high-pressure forming mold, including a punch 1, a pressurizing component 2, and a piston 3. The punch 1 is provided with an inner cavity, one end of the punch 1 is provided with a first outlet 1b, the other end of the punch 1 is provided with a first extrusion port 1c, and the side wall of the punch 1 is provided with a first inlet 1a. The first outlet 1b, the first extrusion port 1c, and the first inlet 1a are respectively connected to the inner cavity. One end of the pressurizing component 2 is inserted into the first extrusion port 1c. The pressurizing component 2 is provided with a piston 3 cavity. One end of the pressurizing component 2 is provided with a second extrusion port 2c corresponding to the first extrusion port 1c, and the other end of the pressurizing component 2 is provided with a second inlet 2a and a second outlet 2b. The second extrusion port 2c, the second inlet 2a, and the second outlet 2b are respectively connected to the piston 3 cavity. The piston 3 is slidably installed in the piston 3 cavity.
[0025] In some preferred embodiments of this invention, a support groove is provided at one end of the punch 1. This support groove ensures improved sealing when docking with external products.
[0026] In some preferred embodiments of this invention, a first sealing ring is provided between the punch 1 and the pressurizing assembly 2. Thus, the first sealing ring can improve the sealing performance between the punch 1 and the pressurizing assembly 2.
[0027] In some preferred embodiments of the utility model, the booster assembly 2 includes a booster cylinder 2d and a punch pin seat 2e, the piston 3 cavity and the second extrusion port 2c are arranged on the booster cylinder 2d, and the second water inlet 2a and the second water outlet 2b are arranged on the punch pin seat 2e. In this way, the parts can be conveniently replaced, and the maintenance cost is reduced.
[0028] In some preferred embodiments of the utility model, a second sealing ring is arranged between the booster cylinder 2d and the punch pin seat 2e. In this way, the sealing performance of the booster cylinder 2d and the punch pin seat 2e can be improved.
[0029] In some preferred embodiments of the utility model, a support plate is arranged at the bottom of the punch pin seat 2e. In this way, the stability can be improved.
[0030] Compared with the prior art, the stainless steel internal high-pressure forming die of the application is provided with a booster assembly 2. When the valve opening the first water inlet 1a and the outside is opened, water enters the punch 1 from the first water inlet 1a, and water enters the product cavity 100 from the first water outlet 1b. At the same time, the external drain valve corresponding to the second water outlet 2b is opened, and the external water inlet valve corresponding to the second water inlet 2a is closed. Under the action of water pressure, the piston 3 is pushed to move downward until the bottom of the booster assembly 2. When the cavity of the stainless steel pipe is filled with water, the external water inlet valve corresponding to the first water inlet 1a is closed, the external drain valve of the second water outlet 2b is closed, and the external water inlet valve of the second water outlet 2b and the second water inlet 2a is opened. Water enters from the second water outlet 2b and the second water inlet 2a. Under the action of water pressure, the piston 3 is pushed to move to the punch 1 part, and then the water in the inner cavity is extruded, so that the water in the inner cavity extrudes the product, and the product size stability of the stainless steel product is effectively guaranteed. In addition, the punch 1 and the booster assembly 2 are in a split structure, and when one of the parts is damaged, it can be quickly replaced, greatly improving the die changing efficiency and saving the die cost.
[0031] The above is only a specific embodiment of the application, and is not used to limit the protection scope of the application. For those skilled in the art, the application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which shall also be included in the protection scope of the application. Therefore, the protection scope of the application shall be subject to the protection scope of the claims.
[0032] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are used herein merely as labels, and are not intended to impose ordinal import.
Claims
1. A stainless steel internal high-pressure forming mold, characterized in that, include: A punch, wherein the punch has an inner cavity, one end of the punch has a first water outlet, the other end of the punch has a first extrusion port, and the side wall of the punch has a first water inlet, and the first water outlet, the first extrusion port and the first water inlet are respectively connected to the inner cavity; A pressurizing assembly, one end of which is inserted into the first extrusion port, the pressurizing assembly is provided with a piston chamber, one end of which is provided with a second extrusion port corresponding to the first extrusion port, and the other end of which is provided with a second water inlet and a second water outlet, the second extrusion port, the second water inlet and the second water outlet being respectively connected to the piston chamber; A piston, which is slidably mounted within the piston chamber.
2. The stainless steel internal high-pressure forming mold according to claim 1, characterized in that, One end of the punch is provided with a support slot.
3. The stainless steel internal high-pressure forming mold according to claim 1, characterized in that, A first sealing ring is provided between the punch and the pressurizing component.
4. The stainless steel internal high-pressure forming mold according to claim 1, characterized in that, The pressurization assembly includes a pressurization cylinder and a punch seat. The piston chamber and the second extrusion port are disposed in the pressurization cylinder, and the second water inlet and the second water outlet are disposed in the punch seat.
5. The stainless steel internal high-pressure forming mold according to claim 4, characterized in that, A second sealing ring is provided between the booster cylinder and the punch seat.
6. The stainless steel internal high-pressure forming mold according to claim 4, characterized in that, A support plate is provided at the bottom of the punch holder.