SU1326389A1 - Method of producing female dies with inserts - Google Patents

Abstract

The invention relates to toolmaking and can be used in the manufacture of die punch dies. The invention allows to increase tool life and reduce labor intensity in the repair of dies. This is achieved due to the fact that the blank of the insert element is made a multiple of the height of the insert element in the finished matrix, taking into account the allowance for cutting and grinding. The workpiece is placed in the matrix. Form the working contour of the tool by electroerosive cutting. The preform is then removed from the die and cut into individual inserts. By simultaneously cutting the shape of the contour both on the matrix and on the inserts, the laboriousness of making matrices is reduced. 2 Il. (L 00 1C Od with 00

Description

1132

The invention relates to toolmaking and can be used in the manufacture of die punch dies.

The aim of the invention is to increase durability and reduce labor intensity during repair of dies.

FIG. 1 shows a matrix, the view of FIG. 2 - the same, top view,

The method is carried out as follows.

A plate 1 is prepared by machining with a matrix 1 with holes under the insert element 2, which are fixed from rotation with the help of pins 3. The preparation of the insert element 2 is made with a size of high, those times the height of the insert element in the finished matrix. under the cut; u and grinding. After placing the blanks in the holes of the die, an EDM cutting of the working profile of the tool is made, then the blank with a part of the working profile is pressed out, cut into individual elements, polished, obtaining a set of replaceable die insert elements.

Example. A set of matrices with inserted elements was made, the working profile was processed on an EDZ machine 4732 9i3.

The height of the blanks under the plug 35

cops were determined using the formula H K (h + 4 + d) -2A,

H - the height of the workpiece under the insert element;

the height of the finished insert;

cutting allowance; allowance for subsequent grinding;

h D / 6, allowance for processing edges of insert elements; K - coefficient, which accounts for the number of simultaneously processed insert elements ().

The workpieces were polished, a groove was formed for fixation against rotation, heat-treated, then polished, pressed into the die and fixed with pins against rotation.

one

After cutting out the working contour of the tool mold window, the blanks of the insert elements were pressed out, cut, ground to the size of the individual insert elements, and pressed again into the matrix with rotation fixation.

Claims (1)

Invention Formula A method of manufacturing die dies with plug-in elements, mainly cutting, consisting in the machining of dies and blanks of plug-in elements, their subsequent heat treatment, as well as electro-erosion cutting out the shape-forming contour of the dies, distinguishing it from the fact that, in order to increase durability and reduce labor intensity during repair dies, each billet the size of the height, a multiple of the height of the insert element in the finished matrix, taking into account the allowance for cutting and grinding, then the workpiece is installed in the matrix in place of the finished insert element, and after EDM cutting the shaping contour, the workpiece is removed from the matrix, cut into separate insert elements, one of which again set in the matrix. Vus, g FIG 2