A combined powder metallurgy mold

Abstract

This utility model provides a combined powder metallurgy mold, relating to the field of powder metallurgy mold technology, including an upper mold, a lower mold, and a mold shell; the upper side of the lower mold is connected to four sets of threaded pipes, and four sets of support rods are provided between the upper and lower molds; a base is provided on the upper side of the lower mold, with a circular hole at the center end of the base, and a positioning pipe is connected to the inner side of the circular hole at the center end of the base; three sets of threaded holes are provided on the upper side of the base; a vibration motor is installed inside the motor shell, which is beneficial for adjusting the power to control the vibration frequency and amplitude, adapting to powder materials of different particle sizes and flowability, such as fine powder requiring low amplitude to avoid splashing, and coarse powder requiring high amplitude to promote filling, ensuring uniform material filling while enhancing the mold's adaptability to various materials, solving the problem of poor adaptability of existing combined powder metallurgy molds to powders of different particle sizes and flowability.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy mold technology, and more specifically, it relates to a combined powder metallurgy mold. Background Technology

[0002] Modular powder metallurgy molds are a type of mold structure with a modular design in powder metallurgy forming processes. Their core feature is that they are assembled from multiple detachable and replaceable parts, rather than traditional monolithic molds. This design aims to improve the versatility, flexibility, and ease of maintenance of the mold to meet the diverse part requirements in powder metallurgy production. However, currently commonly used modular powder metallurgy molds have poor adaptability to powders of different particle sizes and flowability, so a new type of modular powder metallurgy mold is needed. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a modular powder metallurgy mold, which solves the problem of poor adaptability of existing modular powder metallurgy molds to powders of different particle sizes and flowability.

[0004] This utility model discloses a combined powder metallurgy mold, which is achieved through the following specific technical means: A combined powder metallurgy mold includes an upper mold plate, a lower mold plate, and a mold shell; The upper template has four sets of threaded pipes connected to its lower side. The upper template has a circular hole at its center end, and a fixing pipe is fixedly connected inside the circular hole at the center end of the upper template. The lower template has four sets of threaded pipes connected to its upper side, and four sets of support rods are provided between the upper and lower templates. The upper and lower ends of the support rods are threaded, and the upper and lower ends of the support rods are respectively connected to the threaded pipes on the lower side of the upper template and the upper side of the lower template. The lower template has a base on its upper side. The base has a circular hole at its center end, and a positioning pipe is connected inside the circular hole at the center end of the base. The base has three sets of threaded holes on its upper side. The mold shell is placed on the upper side of the circular hole at the center end of the base, and three sets of circular holes are provided on the outer side of the bottom end of the mold shell. A threaded bolt is installed in the circular hole on the outer side of the bottom end of the mold shell, and the threaded bolt is threadedly connected to the threaded hole on the upper side of the base.

[0005] Furthermore, an electric cylinder is installed on the inner side of the positioning tube, a connecting pipe is connected to the push rod of the electric cylinder, a base plate is threaded onto the connecting pipe, the base plate is movably clamped on the inner side of the bottom end of the mold shell, a sealing ring is fitted on the outer side of the lower end of the base plate, and a top plate is connected to the upper side of the base plate.

[0006] Furthermore, the bottom of the mold shell is provided with a shock-absorbing pad, and two sets of motor shells are connected to the outside of the mold shell, with a vibration motor installed inside the motor shell.

[0007] Furthermore, a partition is fixedly connected to the inner side of the lower end of the fixed tube, and an extrusion member is provided on the inner side of the fixed tube. A connecting plate is fixedly connected to the upper end of the extrusion member, a large baffle is fixedly connected to the outer side of the extrusion member, the lower end of the extrusion member passes through the partition, and a pressure plate is connected to the lower end of the extrusion member.

[0008] Furthermore, five sets of positioning rods are connected to the upper side of the partition, and the upper ends of the positioning rods pass through the large baffle. Each of the five sets of positioning rods is connected to a small baffle, and a return spring is fitted on the outside of the positioning rod.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a shock-absorbing pad, this utility model can absorb vibration energy by using the shock-absorbing pad at the bottom of the mold shell, thereby reducing the transmission of vibration to other mold components such as the base and lower template and external equipment, and reducing the risk of overall equipment resonance.

[0010] 2. This utility model, by setting a vibration motor, has a vibration motor installed inside the motor housing, which is conducive to adjusting the power to control the vibration frequency and amplitude, and adapting to powder materials with different particle sizes and flowability. For example, fine powder requires low amplitude to avoid splashing, while coarse powder requires high amplitude to promote filling. This ensures uniform material filling and enhances the mold's adaptability to various materials.

[0011] 3. This utility model sets up a pressure plate, which is connected to the lower end of the extrusion piece. The pressure plate and the extrusion piece are bolted together. Different sizes or surface textures of pressure plates can be replaced according to the product shape, thereby improving the versatility of the mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the base and positioning tube of this utility model.

[0014] Figure 3 This is a structural schematic diagram of the connecting pipe and the base plate of this utility model.

[0015] Figure 4 This is a cross-sectional structural diagram of the upper template and fixing tube of this utility model.

[0016] Figure 5 This is a structural schematic diagram of the extrusion part of this utility model.

[0017] Figure 6 This is a cross-sectional view of the mold shell of this utility model. Structural diagram.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Upper template; 2. Lower template; 3. Threaded pipe; 4. Support rod; 6. Base; 7. Fixing pipe; 8. Mold shell; 9. Extruded part; 901. Large baffle; 10. Connecting plate; 11. Positioning pipe; 12. Electric cylinder; 13. Connecting pipe; 14. Base plate; 15. Sealing ring; 16. Top plate; 17. Partition plate; 18. Positioning rod; 1801. Small baffle; 19. Return spring; 20. Pressure plate; 21. Shock-absorbing pad; 22. Motor shell; 23. Vibration motor. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example:

[0020] As attached Figure 1 To be continued Figure 6 As shown: This utility model provides a combined powder metallurgy mold, including an upper mold plate 1, a lower mold plate 2, and a mold shell 8; Four sets of threaded pipes 3 are connected to the lower side of the upper template 1. A round hole is provided at the center end of the upper template 1, and a fixing pipe 7 is fixedly connected inside the round hole at the center end of the upper template 1. Four sets of threaded pipes 3 are connected to the upper side of the lower template 2, and four sets of support rods 4 are provided between the upper template 1 and the lower template 2. The upper and lower ends of the support rods 4 are threaded, and the upper and lower ends of the support rods 4 are respectively connected to the threaded pipes 3 on the lower side of the upper template 1 and the upper side of the lower template 2. A base 6 is provided on the upper side of the lower template 2. A round hole is provided at the center end of the base 6, and a positioning pipe 11 is connected inside the round hole at the center end of the base 6. Three sets of threaded holes are provided on the upper side of the base 6. The mold shell 8 is placed on the upper side of the round hole at the center end of the base 6, and three sets of round holes are provided on the outer side of the bottom end of the mold shell 8. A threaded bolt is installed in the round hole on the outer side of the bottom end of the mold shell 8, and the threaded bolt is threadedly connected to the threaded hole on the upper side of the base 6.

[0021] Among them, such as Figure 2 As shown, an electric cylinder 12 is installed inside the positioning tube 11. A connecting tube 13 is connected to the push rod of the electric cylinder 12. A base plate 14 is threaded onto the connecting tube 13. The base plate 14 is movably clamped inside the bottom end of the mold housing 8. A sealing ring 15 is fitted on the outer side of the lower end of the base plate 14. A top plate 16 is connected to the upper side of the base plate 14. The base plate 14 and the connecting tube 13 are connected by threads, which facilitates the disassembly and replacement of worn parts, reducing maintenance costs. The sealing ring 15 on the outer side of the lower end of the base plate 14 effectively prevents powder leakage, keeps the inside of the mold clean, reduces contamination of precision parts such as the electric cylinder, and extends the service life of the mold. The base plate 14 is movably clamped inside the mold housing 8, which facilitates demolding operations. With the precise control of the electric cylinder 12, a smooth demolding process can be achieved, reducing the risk of product damage.

[0022] Among them, such as Figure 6 As shown, the bottom of the mold housing 8 is provided with a shock-absorbing pad 21. Two sets of motor housings 22 are connected to the outside of the mold housing 8, and a vibration motor 23 is installed inside the motor housing 22. The shock-absorbing pad 21 at the bottom of the mold housing 8 can absorb vibration energy, reduce the transmission of vibration to other mold components such as the base 6 and the lower template 2, as well as external equipment, and reduce the risk of overall equipment resonance. The vibration motor 23 can control the vibration frequency and amplitude by adjusting the power to adapt to powder materials of different particle sizes and flowability. For example, fine powder requires low amplitude to avoid splashing, while coarse powder requires high amplitude to promote filling, ensuring uniform material filling while enhancing the mold's adaptability to various materials.

[0023] Among them, such as Figure 4 and Figure 5 As shown, a partition 17 is fixedly connected to the inner side of the lower end of the fixed tube 7, and an extrusion member 9 is provided inside the fixed tube 7. A connecting plate 10 is fixedly connected to the upper end of the extrusion member 9, and a large baffle 901 is fixedly connected to the outer side of the extrusion member 9. The lower end of the extrusion member 9 passes through the partition 17, and a pressure plate 20 is connected to the lower end of the extrusion member 9. Five sets of positioning rods 18 are connected to the upper side of the partition 17, and the upper ends of the positioning rods 18 pass through the large baffle 901. A small baffle 1801 is connected to the upper ends of the five sets of positioning rods 18 respectively. A return spring 19 is fitted on the outer side of the positioning rod 18. On the outside of the positioning rod 18, when the extruder 9 presses the powder downwards, the spring is compressed to generate an elastic reaction force. This makes the pressing force not rigidly applied, but has a buffering effect, which is especially suitable for the pressure gradient distribution requirements common in powder metallurgy. The design of the pressure plate 20 expands the contact area with the powder, making the pressure distribution more uniform and reducing local stress concentration. For large-area thin-walled compacts, this structure can effectively avoid the problem of under-pressure at the edges or over-pressure at the center. The pressure plate 20 is bolted to the extruder 9, and pressure plates of different sizes or surface textures can be replaced according to the product shape to improve the versatility of the mold.

[0024] The specific usage and function of this embodiment are as follows: like Figures 1 to 6 As shown, in this utility model, the bottom plate 14 and the connecting pipe 13 are connected by threads, which facilitates the disassembly and replacement of worn parts, reduces maintenance costs, and the sealing ring 15 on the outer side of the lower end of the bottom plate 14 effectively prevents powder leakage, keeps the inside of the mold clean, reduces contamination of precision parts such as the electric cylinder, and extends the service life of the mold. The bottom plate 14 is movably clamped in the mold shell 8, which facilitates demolding operation. With the precise control of the electric cylinder 12, a smooth demolding process can be achieved, reducing the risk of product damage. The pressure plate 20 and the extrusion piece 9 are bolted together, and pressure plates of different sizes or surface textures can be replaced according to the product shape, improving the versatility of the mold.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A modular powder metallurgy die, characterized by: Includes upper template (1), lower template (2) and mold shell (8); The lower side of the upper template (1) is connected to four sets of threaded pipes (3). The center end of the upper template (1) is provided with a round hole, and a fixing pipe (7) is fixedly connected inside the round hole at the center end of the upper template (1). The upper side of the lower template (2) is connected to four sets of threaded pipes (3), and four sets of support rods (4) are provided between the upper template (1) and the lower template (2). The upper and lower ends of the support rods (4) are provided with threads, and the upper and lower ends of the support rods (4) are respectively connected to the threads on the lower side of the upper template (1) and the upper side of the lower template (2). The lower template (2) is connected by a base (6) on the upper side of the template (2). The center end of the base (6) is provided with a round hole, and a positioning tube (11) is connected inside the round hole at the center end of the base (6). The upper side of the base (6) is provided with three sets of threaded holes. The mold shell (8) is placed on the upper side of the round hole at the center end of the base (6), and three sets of round holes are provided on the outer side of the bottom end of the mold shell (8). A threaded bolt is installed in the round hole on the outer side of the bottom end of the mold shell (8), and the threaded bolt is threadedly connected to the threaded hole on the upper side of the base (6).

2. A modular powder metallurgy die as defined in claim 1, wherein: An electric cylinder (12) is installed on the inner side of the positioning tube (11). A connecting tube (13) is connected to the push rod of the electric cylinder (12). A base plate (14) is threaded onto the connecting tube (13). The base plate (14) is movably clamped on the inner side of the bottom end of the mold shell (8). A sealing ring (15) is fitted on the outer side of the lower end of the base plate (14). A top plate (16) is connected to the upper side of the base plate (14).

3. A modular powder metallurgy die as defined in claim 1, wherein: The bottom of the mold shell (8) is provided with a shock-absorbing pad (21), and two sets of motor shells (22) are connected to the outside of the mold shell (8), and a vibration motor (23) is installed inside the motor shell (22).

4. A modular powder metallurgy die as defined in claim 1, wherein: A partition (17) is fixedly connected to the inner side of the lower end of the fixed tube (7), and an extrusion member (9) is provided on the inner side of the fixed tube (7). A connecting plate (10) is fixedly connected to the upper end of the extrusion member (9), and a large baffle (901) is fixedly connected to the outer side of the extrusion member (9). The lower end of the extrusion member (9) passes through the partition (17), and a pressure plate (20) is connected to the lower end of the extrusion member (9).

5. A modular powder metallurgy die as defined in claim 4, wherein: Five sets of positioning rods (18) are connected to the upper side of the partition (17), and the upper end of the positioning rod (18) passes through the large baffle (901). The upper ends of the five sets of positioning rods (18) are respectively connected to a small baffle (1801). A return spring (19) is fitted on the outside of the positioning rod (18).

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