CN203343435U - Powder metallurgy forming upper inner punch capable of being replaced by ejector pin - Google Patents

Abstract

The utility model discloses a powder metallurgy forming upper inner punch capable of being replaced by an ejector pin. The powder metallurgy forming upper inner punch comprises a body, the left end of the body is a product, the outer layer of the front half section of the body is an upper outer punch, the inner layer of the front half section of the body is an upper inner punch connecting element, and the rear half section of the body is the ejector pin. After the upper inner punch is used in production, production of a product in a small size can be effectively controlled, in terms of selection of mold materials, abrasion-resistance of the upper inner punch can be improved, breaking is unlikely to occur, product quality is really improved, mold manufacturing cost is saved, the size of the product is completely and stably controlled, service life of a mold is prolonged, and mold cost is substantially reduced.

Description

Punching on the powder metallurgy forming that a kind of available thimble replaces

Technical field

The utility model relate on the powder metallurgy forming that a kind of available thimble replaces in punching.

Background technology

Due to the design of the powder metallurgy die of existing structure in the ordinary course of things, the upper interior length of rushing is longer, particularly at the product external diameter hour, all there is congenital deficiency--easy fracture usually in its intensity.On selecting, material also is difficult to produce a desired effect.Select wearability material preferably, its toughness often can not possess simultaneously, the mould easy fracture; Select toughness material preferably, its wearability also can relative reduce, and mould is easy to wear, can cause the product crackle, when serious, there will be discontinuous product bad, thereby causes greatly having some setbacks of production.

The outwash of closing in addition and upper interior punching are integrated, and no matter are split type upper punch design or the design of monoblock type upper punch, and often outwash and Nei Chong there will be the inconsistent phenomenon of steel resilience, thereby affect product size.

Summary of the invention

The purpose of this utility model is to overcome the above problem that prior art exists, interior punching on the powder metallurgy forming that provides a kind of available thimble to replace, thus more convenient efficient.

For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:

Punching on the powder metallurgy forming that a kind of available thimble replaces, comprise body, and the left end of described body is product, and the skin of the first half section of described body is upper outwash, and internal layer is the upper interior connector that rushes, and the second half section of described body is Novel thimble.

Further, to require be 0.03-0.06mm for described upper outwash and the described interior impulse face controlling dimension that rushes connector

The beneficial effects of the utility model are:

After adopting interior punching of the present utility model to produce, can effectively control size less on product, on mold materials is selected, can only improve its wearability, needn't worry its fracture, conscientiously improve product quality, save the Mold Making cost; And product size is controlled stable fully, improve die life, and the die cost decrease.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is upper punch forming surface schematic diagram of the present utility model;

The schematic diagram of the local X that Fig. 3 is upper punch forming surface of the present utility model.

Number in the figure explanation: 1, product, 2, upper outwash, 3, the upper interior connector that rushes, 4, thimble, 5, body.

The specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.

Shown in Fig. 1, on the powder metallurgy forming that a kind of available thimble replaces, interior punching, comprise body 5, the left end of described body 5 is products 1, the skin of the first half section of described body 5 is upper outwash 2, and internal layer is the upper interior connector 3 that rushes, and the second half section of described body is thimble 4.

Further, the requirement of the impulse face controlling dimension of described upper outwash 2 and described interior punching 3 is 0.03-0.06mm.

The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (2)

1. punching on the powder metallurgy forming of an available thimble replacement, comprise body (5), it is characterized in that, the left end of described body (5) is product (1), the skin of the first half section of described body (5) is upper outwash (2), internal layer is the upper interior connector (3) that rushes, and the second half section of described body (5) is thimble (4).

2. punching on the powder metallurgy forming that available thimble according to claim 1 replaces, is characterized in that, it is 0.03-0.06mm that described upper outwash (2) and the described interior impulse face controlling dimension that rushes connector (3) require.

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