RU2798095C1 - Device for manufacturing a hooked grid with decorative step transitions in the form of inclined steps - Google Patents

Abstract

FIELD: metal deformation.

SUBSTANCE: invention can be used in the manufacture of decorative gratings. A device for manufacturing a hoofed lattice, a cell fragment of which consists of two decorative stepped transitions in the form of inclined steps and a rounded side element between them, comprises a shaping punch and a die, fixing die elements relative to the punch and fixing elements of the workpiece relative to the die and punch. The die consists of a base and three elements rigidly mounted on it with working surfaces that form a cell fragment, the transitions of which are made decorative due to an inclined step. The design of the elements of the die and punch is given.

EFFECT: complexity of manufacturing the resulting product is reduced due to the possibility of manufacturing fragments of cells of a given geometry by stamping.

1 cl, 3 dwg

Description

The invention relates to the field of metal deformation, namely to a device for the manufacture of a decorative hoofed lattice (CR), which is an old Russian product made of bars, the report (cell) of which is close to a vertical rhombus, with rounded side corners and keeled points at the top and bottom (Pluzhnikov V. M. Terms of the Russian architectural heritage Dictionary - glossary M., 1995). A device for manufacturing CD is known (https://www.youtube.com/watch?v=_FsuS6x5VkE Accessed 09/24/2022), consisting of fragments of cells, including two transitions and a rounded side element between them, while the device for manufacturing CD contains forming a punch and a matrix, fixing the elements of the matrix relative to the punch and fixing the elements of the workpiece relative to the matrix and the punch.

The disadvantage of the described device is the impossibility of manufacturing by stamping the CD with additional decorative elements in the form of stepped transitions and rounded side elements located between them, which significantly increases the complexity of manufacturing the product.

The closest in technical essence to the claimed device is a device for the manufacture of CD (RU 2743819, 26.02.2020), a cell fragment of which consists of two decorative stepped transitions (DSP) and a rounded element between them, while the device contains a shaping punch and a matrix, fixing elements the matrix relative to the punch and the fixing elements of the workpiece relative to the matrix and the punch, in addition, the matrix consists of a base and three rigidly installed elements on it, and the length of the working surface of the two elements of the matrix and the width of the step of decorative transitions are equal, and the other element has a working surface for forming reference area of the cell fragment.

The disadvantage of the described device is the impossibility of manufacturing by stamping RC with chipboard in the form of inclined steps due to the lack of a support section located on the symmetry axis of the formed cell fragment, which significantly increases the complexity of manufacturing the product during manual bending with a special tool of each element of the cell fragment.

The technical result to which the invention is directed is to reduce the complexity of manufacturing the resulting product due to the possibility of manufacturing fragments of cells of a more concise geometry by stamping, due to the presence of chipboard in the form of inclined steps.

The technical result is achieved by the fact that the device for manufacturing RC with chipboard in the form of inclined steps, the cell fragment of which consists of two decorative transitions and a rounded element between them, contains a shaping punch and a matrix, fixing the elements of the matrix relative to the punch and fixing elements of the workpiece relative to the matrix and punch , in addition, the matrix consists of a base and three rigidly mounted elements on it, and the length of the working surface of the two elements of the matrix and the width of the step of decorative transitions are equal, and the other element has a working surface for forming the supporting section of the cell fragment.

What is new in the invention is that the first matrix element is configured to form a temporary support section of the first decorative transition adjacent to the inclined step, while the first matrix element with working surfaces located at an angle of 90° to each other is rigidly connected to the second matrix element, which is configured to form an inclined step of the first decorative transition, the upper point of the inclination of the working surface of which is located at a distance C from the horizontal working surface of the first matrix element and is determined by the expression:

С=0.5bsinα, where

C - distance from the horizontal working surface of the first matrix element to the upper point of the inclined working surface of the second matrix element, mm;

b - step width, mm;

α is the angle of inclination of the step, deg., and the third element of the matrix corresponds in height to the second, is located on the base of the matrix mirror relative to the second, at a distance L and is determined by the expression:

L=0.5А-bcosα, where

L - distance between the second and third elements, mm;

A - cell height, mm;

α - step inclination angle, degrees;

b - step width, mm,

at the same time, the punch is made with a working surface that provides the formation in one stroke of a partially first decorative transition with a temporary reference section and a second decorative transition, while the protrusion on the punch involved in the formation of the temporary reference section has a height equal to the dimension C on the matrix to ensure the location temporary reference area on the axis of symmetry of the formed fragment of the cell.

Reducing the complexity of manufacturing RC with chipboard in the form of inclined steps is achieved by the transition from manual bending with a special tool of each element of the cell fragment to stamping, which in turn is provided by the geometry of the working surfaces of the matrix and punch of the device. The present invention is illustrated by drawings, where

in fig. 1 - partially formed fragment of the RC cell (the thickness of the material is not shown);

in fig. 2 - device for the manufacture of CD;

in fig. 3 - external view of the device for the manufacture of CD (photo).

A device for manufacturing CR with chipboard in the form of inclined steps consists of a forming punch 1 (Fig. 2), a matrix 2 (Fig. 2), fixing elements (not shown), a matrix 2 (Fig. 2) 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 a base 3 (Fig. 2) and three elements rigidly mounted on it. The first element 4 (Fig. 2) of the matrix 2 (Fig. 2) together with the second element 5 (Fig. 2) of the matrix 2 (Fig. 2) forms a temporary support section 6 (Fig. 1) and an inclined step 7 (Fig. 1 ) width b (Fig. 1) of the first decorative transition 8 (Fig. 1). The first element 4 (Fig. 2) of the matrix 2 (Fig. 2) with working surfaces located at an angle of 90° to each other is rigidly connected to the second element 5 (Fig. 2) of the matrix 2 (Fig. 2). The upper point of the inclination of the second working element 5 (Fig. 2) of the matrix 2 (Fig. 2) is located at a distance C from the working surface of the first element 4 (Fig. 2) of the matrix 2 (Fig. 2) and is determined by the expression:

С=0.5bsinα, where

C - distance from the horizontal working surface of the first matrix element to the top point of the inclined working surface of the second matrix element, mm,

b - step width, mm;

α - step inclination angle, deg.

The third element 9 (Fig. 2) of the matrix 2 (Fig. 2) corresponds in height to the second element 5 (Fig. 2) of the matrix 2 (Fig. 2) and is located on the base 3 (Fig. 2) mirror relative to the second element 6 (Fig. . 2), at a distance L and is determined by the expression:

L=0.5А-bcosα, where

L - distance between the second and third elements, mm;

A - cell height, mm;

α - step inclination angle, degrees;

b - step width, mm,

the third element 9 (Fig. 2) of the matrix 2 (Fig. 2) forms an inclined step 7 (Fig. 1) with a width b (Fig. 1) of the second decorative transition 10 (Fig. 1)

The punch 1 (Fig. 2) is made with a working surface that forms, in one working stroke, a partially first chipboard 8 (Fig. 1) with a temporary support section 6 (Fig. 1), a rounded side element 11 (Fig. 1) and a second chipboard 10 ( Fig. 1). The protrusion on the punch 1 (Fig. 2), involved in the formation of the temporary support section 6 (Fig. 1) has a height equal to the size C on the matrix 2 (Fig. 2), which ensures the location of the temporary support section 6 (Fig. 1) on axis of symmetry of the part of the cell fragment formed by stamping.

Manufacture by stamping KR with chipboard in the form of inclined steps using the claimed device is as follows. Install the workpiece heated to the temperature of plastic deformation in the matrix 2 (Fig. 2). Form a fragment of the cell in two stages, by the impact of the punch 1 (Fig. 2) on the workpiece (not shown). Initially, completely one chipboard 10 (Fig. 1) is formed in the form of an inclined step 7 (Fig. 1), a rounded side element 11 (Fig. 1) and partially another chipboard 8 (Fig. 1) in the form of an inclined step 7 (Fig. 1 ) with a temporary support section 6 adjacent to it (Fig. 1), turn the workpiece 180° and finally form the chipboard of the previous part of the cell fragment, the rounded side element, the temporary support section and the next chipboard.

Repeat fragments of the cell as many times as necessary. The product is assembled by rigidly connecting the rounded side elements with the formation of CR with chipboard in the form of inclined steps

Thus, the proposed device allows to reduce the complexity of manufacturing the resulting product.

Claims (12)

A device for manufacturing a hoofed lattice with decorative stepped transitions in the form of inclined steps, a cell fragment of which consists of two decorative transitions and a rounded side element between them, containing a shaping punch and a matrix, fixing matrix elements relative to the punch and fixing elements of the workpiece relative to the matrix and punch, with in this case, the matrix consists of a base and three elements rigidly mounted on it, characterized in that the first matrix element is configured to form a temporary support section adjacent to the inclined step of the first decorative transition, while the first matrix element with working surfaces located at an angle of 90° to each other, is rigidly connected with the second element of the matrix, which is configured to form an inclined step of the first decorative transition, the upper point of the inclination of the working surface of which is located at a distance C from the horizontal working surface of the first element of the matrix, which is determined by the expression С=0.5bsinα, where C is the distance from the horizontal working surface of the first matrix element to the upper point of the inclined working surface of the second matrix element, mm; b - step width, mm; α - step inclination angle, degrees, and the third element of the matrix corresponds in height to the second and is located on the basis of the matrix mirror relative to the second at a distance L, which is defined by the expression L=0.5A - bcosα, where L is the distance between the second and third elements, mm; A - cell height, mm; α - step inclination angle, deg; b - step width, mm, at the same time, the punch is made with a working surface that provides the formation in one stroke of a partially first decorative transition with a temporary reference section and a second decorative transition, while the protrusion on the punch, which ensures the formation of a temporary reference section, has a height equal to the distance C on the matrix for locating the temporary reference area on the axis of symmetry of the formed fragment of the cell.

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