RU2743819C1 - Device for manufacturing a hoofed lattice - Google Patents

Abstract

FIELD: metal industry.

SUBSTANCE: invention relates to the field of metal processing by deformation and can be used in the manufacture of decorative grilles/lattices. A device for manufacturing a hoofed lattice, a cell fragment of which consists of two transitions and a rounded side element between them, contains a shaping punch and a matrix that fix matrix elements relative to punch and fixing blank elements relative to the matrix and the punch. Matrix consists of a base and three rigidly mounted elements on it, with working surfaces forming a cell fragment, transitions of which are made decorative by means of step located between supporting sections. The constructive implementation of the matrix and punch elements is given. The symmetry of hoof lattice cell fragment made on said device is provided.

EFFECT: reduces manufacturing time of lattice.

1 cl, 3 dwg

Description

The invention relates to the field of metal processing by deformation, namely to a device for the manufacture of a decorative hoofed lattice, which is an ancient Russian product made of bars, the report (cell) of which is close to a vertical rhombus, but with rounded lateral corners and keeled cusps at the top and bottom (https: // temple_architecture.academic.ru/188/hoofed_lattice).

Known devices for the manufacture of a hoofed lattice, consisting of cells formed by two symmetrical fragments, in which each element of the cell fragment is formed with a special tool (Otto Schmirler. Werk und Werkzeug des Kimstschmieds. Wien: Verlag Ernastwasmuth Tubingen. 1981, p.42).

The disadvantage of the described devices is the high complexity of manufacturing, the high probability of obtaining a skew of the cells of the product during assembly, due to the production of asymmetric fragments of the cells.

The closest in technical essence to the claimed device is a device for the manufacture of a hoofed lattice (https://www.youtube.com/watch?v=9WpMMhnUJoY&app=desktop#menu, access date 05/25/2020), consisting of fragments of cells including two transitions and a rounded a lateral element between them, while the device for making a hoofed lattice contains a shaping punch and a matrix, fixing the matrix elements relative to the punch and fixing the blank elements relative to the matrix and the punch.

The disadvantage of the described device is the impossibility of manufacturing a hoofed lattice with additional decorative elements in the form of stepped transitions and rounded side elements located between them, which significantly impairs the decorative properties and aesthetic perception of the product as a whole.

The technical result, which the invention is aimed at, is to increase the decorative properties and aesthetic perception of the resulting product due to the possibility of stamping a fragment of cells of a more complex geometry, due to the presence of a decorative transition.

The technical result is achieved in that the device for manufacturing a hoofed lattice, a cell fragment of which consists of two transitions and a rounded side element between them, contains a shaping punch and a matrix that fix the matrix elements relative to the punch and fixing elements of the blank relative to the matrix and the punch.

New in the invention is that the matrix consists of a base and three rigidly mounted elements on it, with working surfaces forming a cell fragment, the transitions of which are made decorative by means of a step located between the supporting sections, at the same time the length of the working surface of the second and third elements matrices and the width of the step of the decorative transition have the same value, the first matrix element forms the reference section of the first decorative transition, the second matrix element is located at a distance L from the first matrix element and is determined by the expression:

, где

where

L is the distance between the first element and the second element, mm;

R is the radius of rounding of the side element of the cell fragment, mm;

a - step width, mm;

the second matrix element has a working surface for forming the first support area of the second decorative transition, and the radius of the edge of the working surface of the first matrix element is equal to the radius of the edge of the working surface of the second matrix element, the third matrix element is rigidly connected to the second matrix element and forms the second support area of the second decorative stepped transition , while the difference in the heights of the third and second elements of the matrix is equal to the width of the step a , at the same time, the punch is made with a working surface, which in one working stroke partially forms the first decorative transition, a rounded side element and the second decorative transition, while the radius of the edge of the working surface of the third element matrix is equal to the radius of the edge of the working surface of the punch element, which forms the radius of rounding of the corner between the first supporting section of the decorative transition and its step.

Aesthetic perception of the hoofed lattice and improvement of decorative properties is achieved due to the equality of the radius of the edge of the working surface of the first matrix element and the radius of the edge of the working surface of the second matrix element, which makes it possible to ensure the symmetry of the fragments of the cell of the hoofed lattice, and equality of the radius of the edge of the working surface of the third matrix element and the radius of the edge of the working surface element of the punch, allows you to ensure the symmetry of the very fragment of the cell of the hoofed lattice.

The proposed invention is illustrated by drawings, where

in fig. 1 - a partially formed fragment of a cell of the hoofed lattice (the thickness of the material is not indicated);

in fig. 2 - device for making hoofed lattice;

in fig. 3 is an external view of a device for making a hoofed lattice (photo).

The device for the manufacture of a hoof lattice consists of a shaping punch 1 (Fig. 2), a matrix 2 (Fig. 2), fixing elements of the matrix (not shown) relative to the punch 1 (Fig. 2), fixing elements of the workpiece (not shown) relative to the matrix 2 (Fig. 2) and punch 1 (Fig. 2).

Matrix 2 (Fig. 2) consists of base 3 (Fig. 2) and three rigidly mounted elements on it.

The length of the working surface of the second and third elements of the matrix 2 (Fig. 2) and the width of the step a of the decorative transition are of equal importance.

The first element 4 (Fig. 2) of the matrix 2 (Fig. 2) forms the reference section 5 (Fig. 1) of the first decorative transition 6 (Fig. 1).

The second element 7 (Fig. 2) of the matrix 2 (Fig. 2) is located at a distance L (Fig. 2) from the first element of the matrix and is determined by the expression:

, где

where

L is the distance between the first support element and the second element, mm;

R is the radius of rounding of the side element of the cell fragment, mm;

a - step width, mm.

The second element 7 (Fig. 2) of the matrix 2 (Fig. 2) has a working surface for forming the first support section 8 (Fig. 1) of the second decorative transition 9 (Fig. 1).

The radius of the edge r _{1 of the} working surface of the first element 4 (Fig. 2) of the matrix 2 (Fig. 2) is equal to the radius of the edge r _{2 of the} working surface of the second element 7 (Fig. 2) of the matrix 2 (Fig. 2).

The third element 10 (Fig. 2) of the matrix 2 (Fig. 2) is rigidly connected with the second element 7 (Fig. 2) of the matrix 2 (Fig. 2) and forms the second support section 11 (Fig. 1) of the second decorative transition 9 (Fig. . one).

In this case, the difference in the height H _{1 of the} third 10 (Fig. 2) element of the matrix 2 (Fig. 2) and the height H _{2 of the} second 7 (Fig. 2) element of the matrix 2 (Fig. 2) is equal to the width of the step a .

The punch 1 (Fig. 2) is made with a working surface that forms, in one working stroke, partly the first decorative transition 6 (Fig. 1), the rounded side surface 12 (Fig. 1) and the second decorative transition 9 (Fig. 1).

The radius of the edge r _{3 of the} working surface of the third 10 (Fig. 2) of the matrix element 2 (Fig. 2) is equal to the radius r _{P of the} edge of the working surface of the punch element 1 (Fig. 2), which forms the radius of the corner rounding between the reference section of the decorative transition and its step.

Manufacturing by stamping a hoofed lattice using the claimed device is carried out as follows.

Set the workpiece, heated to the temperature of plastic deformation in the matrix 2 (Fig. 2). A cell fragment is formed in two stages by the action of the punch 1 (Fig. 2) on the workpiece (not shown).

The first stage includes the formation of one support section 5 (Fig. 1) of a decorative stepped transition 6 (Fig. 1), a side rounded element 12 (Fig. 2) and a second decorative stepped transition 9 (Fig. 2), consisting of support sections 8 (Fig. 1), 11 (Fig. 1) and steps between them.

Turn the workpiece 180 °.

Finally, the first decorative stepped transition 6 (Fig. 1) of the previous part of the cell fragment, the next side rounded element and the supporting section of the next decorative stepped transition are formed.

The fragments of the cell are repeated the required number of times.

The product is assembled by rigid connection in the rounded side elements 12 (Fig. 2).

Thus, the proposed device makes it possible to increase the decorative properties and aesthetic perception of the resulting product.

Claims (7)

A device for making a hoofed lattice, a cell fragment of which consists of two transitions and a rounded side element between them, containing a shaping punch and a matrix, fixing the matrix elements relative to the punch and fixing elements of the blank relative to the matrix and the punch, characterized in that the matrix consists of a base and three elements with working surfaces rigidly installed on it to form a fragment of a lattice cell, the transitions of which are made decorative due to a step located between the supporting sections, wherein the first matrix element is configured to form a support area of the first decorative transition and has a working surface edge radius equal to the radius of the working surface edge of the second matrix element designed to form the first support area of the second decorative transition, and the third matrix element is rigidly connected to the second matrix element and is configured to form a second support section of the second decorative transition, and the difference in heights of the third and second elements of the decorative transition matrix and the length of their working surface is equal to the width of the decorative transition step, and the second matrix element is located at a distance L from the first matrix element and is defined by the expression:

where L is the distance between the first element and the second element, mm; R is the radius of rounding of the side element of the cell fragment, mm; a - step width, mm; in this case, the punch is made with a working surface, which ensures the formation in one working stroke of the first decorative transition, the rounded side element and the second decorative transition, and the radius of the edge of the working surface of the punch element, which forms the radius of the corner rounding between the first supporting section of the decorative transition and its step, is the radius of the edge of the working surface of the third matrix element.

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