CN220901896U

CN220901896U - Forming die of turbine type powder metallurgy product

Info

Publication number: CN220901896U
Application number: CN202322493945.9U
Authority: CN
Inventors: 李钰嵘; 潘中晨
Original assignee: Mbtm New Materials Group Co ltd
Current assignee: Mbtm New Materials Group Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-05-07
Anticipated expiration: 2033-09-13

Abstract

The utility model provides a forming die of turbine class powder metallurgy goods, includes female die, upper punch and undershoot, its characterized in that: the female die is split into a peripheral female die and a core rod, the peripheral female die and the core rod are respectively arranged on different templates and can move separately and independently, the undershoot is split into an undershoot and two undershoots, a cavity is arranged at the central position of the peripheral female die, the upper punch is arranged right above the cavity, the undershoot, the core rod and the two undershoots are sequentially and coaxially arranged right below the cavity from outside to inside to form a turbine shape forming cavity, and the length of the two undershoots is larger than that of the core rod. The utility model has simple and reasonable structure, convenient processing and high precision, effectively avoids the problem of die breaking, can smoothly take out the die, can realize automatic continuous production, and greatly improves the product manufacturing efficiency and the product quality.

Description

Forming die of turbine type powder metallurgy product

Technical Field

The utility model relates to the technical field of powder metallurgy, in particular to a forming die, and particularly relates to a forming die of a wheel type powder metallurgy product.

Background

The forming die is a key tool for producing powder metallurgy products, and the accuracy of the forming die directly determines the accuracy of the products. In a conventional powder metallurgy die, the die structure is generally designed by adopting three sets of structures of a female die 10, an upper punch 20 and a lower punch 30, as shown in fig. 2, but because the turbine product A has a vortex, the contact area between the die and the product is large, the die stripping force is large, and the product is easy to be sucked on a punch and cannot be taken down when being stripped, so that the continuous production is influenced. In the actual use process, the female die, the undershoot strength and the service life adopting the structural design can not ensure the smooth production of products.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a forming die of a turbine powder metallurgy product, which is simple and reasonable in structure, convenient to process and high in precision.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a forming die of turbine class powder metallurgy goods, includes female die, upper punch and undershoot, its characterized in that: the female die is split into a peripheral female die and a core rod, the peripheral female die and the core rod are respectively arranged on different templates and can move separately and independently, the undershoot is split into an undershoot and two undershoots, a cavity is arranged at the center of the peripheral female die, the upper punch is arranged right above the cavity, the undershoot, the core rod and the two undershoots are sequentially arranged right below the cavity from outside to inside to form a turbine-shaped cavity, and the length of the two undershoots is larger than that of the core rod.

Further, according to the difference of the spiral length of the turbine powder metallurgy product, the core rod is not limited to one core rod, but can be two or three core rods, correspondingly, the undershoot is not limited to the undershoot and the two undershoots, and can be divided into the undershoot, the two undershoots, the three undershoots or the undershoot, the two undershoots, the three undershoots and the four undershoots.

Finally, the undershoot, the core rod and the two undershoots are coaxially arranged.

Compared with the prior art, the utility model has the advantages that: the original female die structure is split into a peripheral female die and a core rod, the undershoot is split into an undershoot and a two undershoot, the peripheral female die and the core rod are respectively arranged on different templates and can be respectively and independently moved, so that the peripheral female die and the core rod can be separated and ejected, the female die is pulled down first, the forming pressure generated in the preparation process of a product is released in advance, and finally the core rod is pulled down, thereby ensuring the smooth preparation and ejection of the product. The utility model has simple and reasonable structure, convenient processing and high precision, effectively avoids the problem of die breaking, can smoothly take out the die, can realize automatic continuous production, and greatly improves the product manufacturing efficiency and the product quality.

Drawings

FIG. 1 is a schematic structural view of a turbine-type article;

FIG. 2 is a schematic diagram of the structure of a conventional powder metallurgy die before modification;

FIG. 3 is a schematic view showing a female mold in a split manner according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an undershoot separation structure according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram showing the overall assembly of a forming mold according to an embodiment of the present utility model;

Fig. 6 is a schematic structural diagram of a forming mold in a demolding state according to an embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 3 to 6, a forming die for a turbine powder metallurgical product comprises a die 10, an upper punch 20 and an lower punch 30, wherein the die 10 in the embodiment is split into a peripheral die 1 and a core rod 2, the lower punch 30 is split into a lower punch 3 and two lower punches 4, and the peripheral die 1 and the core rod 2 are respectively arranged on different templates and can be respectively separated and independently moved, so that the separate die stripping of the peripheral die 1 and the core rod 2 can be realized, and meanwhile, the strength and the service life of the peripheral die 1 are improved. The undershoot 30 is divided into the undershoot 3 and the two undershoots 4, so that the strength and the service life of the original punch can be improved. The center of the peripheral female die 1 is provided with a die cavity, the upper punch 20 is arranged right above the die cavity, the lower punch 3, the core rod 2 and the two lower punches 4 are coaxially arranged right below the die cavity from outside to inside in sequence to form a turbine-shaped die cavity, and the length of the two lower punches 4 is larger than that of the core rod 2 and larger than that of the lower punch 3.

The core rod 2 is not limited to one, and the core rod 2 may be two or three according to the spiral length of the turbine powder metallurgy product, the undershoot 30 is not limited to the undershoot 3 and the two undershoots 4, and may be divided into the undershoot 3, the two undershoots 4, the three undershoots or the undershoot, the two undershoots, the three undershoots, the four undershoots, and the like.

In the process of preparing the turbine product, the demolding action is shown in fig. 6, after the powder metallurgy product is pressed, the undershoot 3, the two undershoots 4 and the core rod 2 are not moved, the peripheral female die 1 is pulled down in advance, the forming pressure generated in the preparation process is released in advance when the product is completely pulled out of the peripheral female die 1, so that the friction force between the product and each punch and the core rod 2 is reduced, and finally the core rod 2 is pulled down, thereby ensuring the smooth demolding of the product.

The embodiment has simple and reasonable structure, effectively avoids the problem of breaking the die, ensures that the product is more smoothly ejected, and avoids the phenomenon of sticking the die, thereby realizing automatic continuous production and greatly improving the manufacturing efficiency and the product quality of the product.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a forming die of turbine class powder metallurgy goods, includes female die, upper punch and undershoot, its characterized in that: the female die is split into a peripheral female die and a core rod, the peripheral female die and the core rod are respectively arranged on different templates and can move separately and independently, the undershoot is split into an undershoot and two undershoots, a cavity is arranged at the center of the peripheral female die, the upper punch is arranged right above the cavity, the undershoot, the core rod and the two undershoots are sequentially arranged right below the cavity from outside to inside to form a turbine-shaped cavity, and the length of the two undershoots is larger than that of the core rod.

2. The molding die according to claim 1, wherein: according to the spiral length of the turbine powder metallurgy product, the core rod is not limited to one core rod, and can be divided into two or three core rods, correspondingly, the undershoot is not limited to the undershoot and the two undershoots, and can be divided into the undershoot, the two undershoots, the three undershoots or the undershoot, the two undershoots, the three undershoots and the four undershoots.

3. The molding die according to claim 1, wherein: the undershoot, the core rod and the two undershoots are coaxially arranged.