Powder metallurgical long corner die

Abstract

The utility model relates to a powder metallurgy long angle mould, including mould body, the one end surface of mould body is spaced apart and is provided with a plurality of first long angle parts, the outer end surface of first long angle part is equipped with the second long angle part to form the side hole position, and the second long angle part, first long angle part and mould body are integral structure to avoid mould cracking. The utility model designs the product side hole position into the structure with long angle on the mould, avoids the mould cracking problem, greatly improves the strength and service life of the mould, and the whole week of long angle structure is with taper, can effectively avoid the product crack generation, and the good product rate is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy technology, specifically to a powder metallurgy long-angle mold. Background Technology

[0002] In existing powder metallurgy mold designs, if the product has side holes, the side hole positions are designed as independent mandrels (molds). However, in the mold design of a transfer case with double gears, such as the Nissan W61, if the traditional mold design is used and the side holes are designed as independent mandrel structures, the next punch mold is prone to continuous cracking, and the cracks all start from the side hole positions.

[0003] In order to improve the strength of the mold, this utility model provides a powder metallurgy long-angle mold with a long-angle structure, which can avoid mold cracking and greatly extend the mold life. Utility Model Content

[0004] The purpose of this utility model is to overcome the problems existing in the prior art and provide a powder metallurgy long-angle mold.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A powder metallurgy long-angle mold includes a mold body. A plurality of first long-angle portions are spaced apart on one end face of the mold body. A second long-angle portion is provided on the outer end face of the first long-angle portions to form edge holes. The second long-angle portions, the first long-angle portions and the mold body are integral structures to avoid mold cracking.

[0006] Furthermore, the first long angle portion is a tapered structure with an inclined taper, which makes the formed edge hole position easy to demold and avoids cracks in the product.

[0007] Furthermore, the first long angle portion is a frustum structure with a large base and a small top, forming a conical slope on its side.

[0008] Furthermore, the second long horn portion is disposed on the top of the frustum of the first long horn portion.

[0009] Furthermore, the second long angle portion has a straight-through structure, which facilitates the forming of the edge holes.

[0010] The beneficial effects of this utility model are: This invention designs the product's edge hole position as a structure with long angles on the mold, avoiding mold cracking problems, greatly improving the mold's strength and service life, and the full circumference tapered of the long angle structure can effectively prevent product cracks, greatly improving the yield rate. Attached Figure Description

[0011] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the end face view structure of this utility model; Figure 3 for Figure 2 Middle RR section view.

[0012] The labels in the diagram are as follows: 1. First long horn section, 2. Second long horn section, 3. Mold body. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] like Figures 1 to 3 As shown, a powder metallurgy long-angle mold includes a mold body 3. In this embodiment, the mold body 3 is a cylindrical structure. A plurality of first long-angle portions 1 are spaced apart on one end face of the cylindrical mold body 3. A second long-angle portion 2 is provided on the outer end face of the first long-angle portion 1 to form a side hole. The second long-angle portion 2, the first long-angle portion 1 and the mold body 3 are an integral structure. The second long-angle portion 2 originally belonged to another structure on the mold and was a separate structure. This utility model cleverly moves it to the first long-angle portion 1 designed on this mold and makes it into an integral structure, cleverly achieving the effect of avoiding mold cracking.

[0015] The first long angle portion 1 is a tapered structure with an inclined taper, which makes the formed edge hole position easy to demold and avoids cracks in the product.

[0016] The first long angle portion 1 is a frustum structure with a large base and a small top, so that its side surface forms a conical slope.

[0017] The second long horn portion 2 is disposed on the top of the cone of the first long horn portion 1.

[0018] The second long angle portion 2 has a straight-through structure, which facilitates the forming of the edge holes.

[0019] Furthermore, it should be noted that, unless otherwise specified or indicated, the terms "first," "second," etc., in the specification are used only to distinguish the various components, elements, steps, etc. in the specification, and are not used to indicate the logical or sequential relationships between the various components, elements, steps, etc.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder metallurgy long-angle mold, characterized in that, The mold body (3) includes a number of first long angle portions (1) spaced apart on one end face of the mold body (3), and a second long angle portion (2) is provided on the outer end face of the first long angle portion (1) to form a side hole position. The second long angle portion (2), the first long angle portion (1) and the mold body (3) are an integral structure to avoid mold cracking.

2. The powder metallurgy long-angle mold according to claim 1, characterized in that, The first long angle part (1) is a tapered structure with an inclined taper, which makes the formed edge hole position easy to demold and avoids cracks in the product.

3. The powder metallurgy long-angle mold according to claim 2, characterized in that, The first long angle part (1) is a truncated cone structure with a large bottom and a small top, so that its side surface forms a conical slope.

4. The powder metallurgy long-angle mold according to claim 3, characterized in that, The second long horn (2) is disposed on the top of the cone of the first long horn (1).

5. The powder metallurgy long-angle mold according to claim 4, characterized in that, The second long angle part (2) has a straight structure, which facilitates the forming of the side hole.

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