RU1810184C - Pipe expansion device - Google Patents

Abstract

Usage: in the production of technological equipment. SUMMARY OF THE INVENTION: sheet blanks are taken and on each of them part of the surface of a female or male tool is obtained. Then, the respective blanks of the female and male tools are fixed between themselves. Upon receipt of surfaces by fair cutting, fixing is carried out by pressing the covered workpiece into the covering work. In another embodiment, separation is performed on an incomplete surface with at least one jumper. Fixed pairs of workpieces are collected in a bag in bulk on the covering workpieces. After assembly, it is rigidly the enveloping blanks are fastened together in one bag and the covered ones in another. After that, the packets are separated and each is processed finally. 6 cp files. 3 ill.

Description

The invention relates to pressure treatment and can be used in the manufacture of tooling, for example, dies.

The purpose of the invention is to reduce labor costs and improve quality.

In FIG. 1 shows a preform layer; in FIG. 2 - a package assembled from blanks; in FIG. 3 - separation of the female and male parts from each other.

The method is as follows:

The tool kit to be manufactured (die and punch) is broken into transverse layers. In each layer, the contour of the interface of the punch and the die is determined. Separation of the sheet blank along the specified contour is carried out.

for example, by laser or by cutting into male and female parts. In the case of laser cutting, bridges may be left between the parts to fix the parts relative to each other. In this case, the width of the cut is selected taking into account the provision of the necessary clearance between the female and male parts. The resulting layers are collected in a bag, while the layer is based relative to the others on the bases of one of the parts, for example, covering. Moreover, these bases can be obtained both before and during the cutting process. The assembled plates are rigidly interconnected (e.g. by diffusion welding or adhesion). After this, these parts are separated from each other, which ensures uniform clearance throughout the entire working

about

with

SL

mu stamp contour. In this case, on the parts of the tool, bases for mounting on the die block can be preliminarily obtained.

An example implementation of the method. A die is made to draw a cylindrical cup from a sheet material of a thickness of 0.6 mm. The working contour of the matrix and punch was cut from sheets of 2 mm thick, material - steel 45.

Steel is not instrumental, accepted because the stamp is experimental, designed for several tens of products.

The cutting of the working contour was carried out by a laser. In this case, two technological bridges 2.5 mm wide were left in each layer. The obtained layers were assembled along side edges (similar to that shown in Fig. 1). The assembled packet was joined by diffusion welding. After assembly, the bag is divided into a die and a punch in a manner similar to that shown in FIG. 3. The remaining process bridges were removed by machining.

Claims (7)

SUMMARY OF THE INVENTION 1. A method of manufacturing a male and female tooling / whereby sheet blanks are taken, assembled into bags, the blanks of each bag are rigidly connected to each other, on each blank of one bag they form a surface corresponding to a part of the working surface of the female tool, on each blank of another the packages are formed on a surface corresponding to a part of the working surface of the male tool, and each package is processed finally, characterized in that, for In order to save labor and improve quality, the surface on each sheet blank is formed before they are assembled into bags, the blanks of one covering and the covered tools corresponding to each other are assembled into packets, on one of the blanks of each pair of fixed blanks, a base for assembly is assembled and pairs of blanks are assembled by the obtained bases, and after a hard connection of the blanks in each packet, the packets are separated. 2. The method according to claim 1, wherein the base for assembly is obtained on a female blank. 3. The method according to claim 1. characterized in that the contour on each sheet blank is formed by a final cut, and the blanks are fixed in each pair by pressing one blank into another. 4. The method according to PP. 1 and 2, with the exception that they take a common sheet blank for each pair of corresponding between each other for the preparation of the female and male tools, the fixation of the workpieces in each pair is carried out by separation on an incomplete surface with at least a technological bridge connecting the undivided parts of the surfaces of the pair of workpieces, when separating the packages, counter-directed forces are applied to them and dividing the remainder of the contour in each workpiece. 5. The method according to PP. 1 and 4, on the assumption that, in order to improve the conditions for separating the packets, technological jumpers in adjacent common sheet blanks are placed with an offset one relative to the other in the tangential direction. 6. The method according to PP. 1 to 5, characterized in that the base for assembly is obtained before the formation of the contour. 7. The method according to claim 1, with the proviso that before separation of the packages between each other, on each of them receive bases for installation on the supporting parts of the equipment. rig. / m /////// L /////// 7 / L //// L N 1. U /// A Y ///// Y //////////// / w V /////////////// L Y // Z / 2 Tu / T IN //// S f f „f Aw) ----. 1 - -r ..- Z. .- - -i I., - / NNP S // {/ {(- {S yx:  .. f J y -j yj L  X h | ///////////////// A: zz z / 0 // 7 / L //// L /////////// /////// L Y //  / rig. 2. ////  - / zz /////// v