RU2626262C2 - Tools for manufacture of products by pressing with back of metal - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: tool contains a container with a working sleeve, a matrix holder with a longitudinal groove mounted on one side of the sleeve and a composite matrix in the form of a pair of elements fixed on the matrix holder. The tool is equipped with a press washer and a direct action stamp that closes the container from the other side of the sleeve. An annular lining is installed in the bushing, which is interfaced with its inner surface and fixed to the matrix holder with closing of the edges of its longitudinal groove and forming a rectangular opening for passage of the pressed article. The elements of the composite matrix and the ring gasket are fixed to the matrix holder by means of fastening elements.

EFFECT: expansion of technological capabilities of the tool and expansion of the nomenclature of the products.

4 dwg

Description

The proposed solution relates to the processing of metals by pressure and can be applied in mechanical engineering and metallurgical industry.

Known tools for extruding products of variable cross section by the direct method of expiration (a.s. Distinctive features of the tools is that the tools use a working sleeve with a round inner surface and apply a composite matrix formed by two pairs of oppositely placed insert elements fixed in the sleeve and segments mounted on a holder matrix.

Closest to the proposed tech. solution, i.e. the prototype is a tool according to patent RU 2563062 C2. The tool allows you to extrude products of variable and constant cross-section.

However, it is necessary to have blanks with a longitudinal groove, made by molding or pressing by the method according to patent RU 2455094 C2.

In addition, a stamp with a longitudinal groove is of limited use only for the manufacture of these products.

The technical result of the proposed tool lies in the possibility of using standardized round blanks for pressing wide products of constant cross-section using a matrix of holders with a longitudinal groove and working sleeves with a round inner surface.

The technical result is achieved by the fact that the tool for manufacturing products by pressing with reverse flow of metal, containing a container with a working sleeve, a matrix holder with a longitudinal groove mounted on one side of the sleeve and a composite matrix in the form of a pair of elements fixed to the matrix holder The tool is equipped with a press washer and a press with a direct-acting stamp that covers the container on the other side of the sleeve, while in the sleeve there is an annular lining that is coupled to its inner surface and secured it is placed on the matrix holder with closing the edges of its longitudinal groove and with the formation of a rectangular hole for the passage of the pressed product, while the elements of the composite matrix and the ring gasket are fixed to the matrix holder by means of fastening elements.

Distinctive features of the proposed technical solution is that the tool is equipped with an annular lining, which is installed instead of the inserts in the working sleeve, paired with it and fixed on the holder matrix, closing the edges of its groove and forming a wide rectangular hole for the passage of the pressed product, as well as having means fixing the first pair of elements of the composite matrix.

The press force in this case is transferred directly to the ingot and the metal flows back (see "Production of Semi-Finished Products from Aluminum Alloys" - reference guide. Metallurgy Publishing House. –M., 1971, p. 182-183).

The technical solution is illustrated by drawings:

In FIG. 1 shows a tool in its initial position, a longitudinal side section.

In FIG. 2 shows a section AA in FIG. one.

In FIG. 3 shows a section BB in FIG. one.

In FIG. 4 shows a side section of a tool made according to the formula, the initial position.

The tool contains a container 1, a working sleeve 2 with a round smooth surface, a plug 3, an elongated matrix holder 4 with a longitudinal groove, elements 5 of the composite matrix. The annular lining 6 is paired with the inner surface of the sleeve and fixed by threaded elements 7 on the matrix holder, closing the edges of its longitudinal groove, forming a wide rectangular hole for the passage of the pressed product (Fig. 2 and 3). On the elements 7 made pins for mounting the elements 5.

In FIG. 4 are marked: a press a direct-acting stamp 8, a press of washers 9, a matrix holder with a longitudinal groove shortened 10.

The proposed tool design is quick-moving, expands the technological capabilities of the application and can be used on existing presses to obtain a different product range: variable and constant cross-section, including profiles with endings, as well as hollow products using standardized round blanks and matrix holders with a longitudinal groove and work sleeves with a round inner surface.

Claims (1)

A tool for manufacturing products by pressing with a reverse flow of metal, containing a container with a working sleeve, a matrix holder with a longitudinal groove mounted on one side of the sleeve, and a composite matrix in the form of a pair of elements fixed to the matrix holder, characterized in that it is equipped with a press washer and a stamp direct action, closing the container on the other side of the sleeve, while in the sleeve there is an annular lining, which is interfaced with its inner surface and mounted on a matrix holder with a closed Thieme its longitudinal edges to form a groove and a rectangular hole for passage of the molded article, the constituent elements of the matrix and the ring gasket secured to the die by means of fastening elements.

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