RU200102U1 - INSTALLATION FOR PRODUCING U-SHAPED PRODUCTS BY STAMPING FROM SHEET, FOR EXAMPLE FRONT PANEL OF A DOOR OF A HOME REFRIGERATOR - Google Patents

Abstract

The utility model relates to technological equipment for cold sheet stamping and can be used in the manufacture of a U-shaped front panel of a home refrigerator door, which has grooves on the side surfaces of the front door panel for built-in handles. The installation contains sequentially installed on the bottom plate on each side relative to the movement of the workpiece to be processed, guides and gripping devices for gripping and moving the workpiece and semi-finished product to the position of cutting notches and punching grooves, bending and flanging positions. On the top plate, punching punches for cutting and punches for punching grooves for built-in handles are also sequentially installed. Close the setting of the bending position of the middle of the ends of the semi-finished product, as well as the positions of the bending of the ends along the edges of the semi-finished product. The technological capabilities of the installation are expanding. 1 wp f-ly, 14 ill.

Description

The utility model relates to technological equipment for cold sheet stamping and can be used in the field of mechanical engineering, in particular, in the manufacture of a U-shaped front panel of a home refrigerator door, which has grooves on the side surfaces of the front door panel for built-in handles.

There is a known installation for processing U-shaped products by stamping from a sheet, for example, the front panel of a home refrigerator door, containing an upper and a lower plate installed with the possibility of moving the upper plate relative to the lower one and made with the formation of successively positioned positions for cutting notches on the sheet blank and positions of the 1st bending, 2nd bending, guides installed on the bottom plate for moving the sheet blank to the mentioned positions for cutting the cutouts and the 1st and 2nd bending (stops for limiting) the movement of the sheet blank to the cutting position, dies for bending located at positions 1 1st and 2nd bending, punching punches installed on the upper plate, and bending punches located in pairs on the upper plate, 1st and 2nd bending on dies for bending (see patent 184 876, IPC B21D 22/02, published 13.11. 2018) - prototype.

The disadvantages of the known installation are limited technological capabilities due to the impossibility of making grooves for built-in handles, as well as the impossibility of bending the middle of the ends and ends with inwardly curved edges on the lateral sides.

The technical result of the utility model is aimed at expanding the technological capabilities of the installation.

The technical result is provided by the fact that an installation for the production of U-shaped products by stamping from a sheet, for example, the front panel of a home refrigerator door, contains an upper and lower plates mounted with the possibility of moving the upper plate relative to the lower one and made with the formation of successive positions of cutting notches on the sheet blank and positions of the 1st, 2nd, 3rd bending, guides installed on the bottom plate for moving the sheet blank to the mentioned positions for cutting the cutouts of the 1st, 2nd and 3rd bending, cutting punches installed on the upper plate, and bending punches located in pairs on the upper plate of the 1st, 2nd and 3rd bending above the matrices are flexible, while at the position of the 3rd bending the lateral sides of the semi-finished product have a C-shaped profile, unlike the prototype, at the position of cutting cutouts on the upper plate there are punches for cutting grooves for built-in handles, after the position of the 1st, 2nd and 3rd bends of the lateral sides of the semi-finished product, on the lower plate It is installed punches for flanging grooves for built-in handles, located parallel to the lateral sides of the processed semi-finished product with the possibility of perpendicular movement to the said sides of the semi-finished product and then at the next bending position of the middle of the ends of the semi-finished product on the bottom plate there is a matrix with a groove and stops for basing the semi-finished product, and on the upper plate it is installed a punch with a clamp and at the last position of bending the ends along the edges of the semi-finished product, punches with clamps are located above it, and matrices are installed on the bottom plate with the ability to move to the lateral sides of the semi-finished product, while the punches interact with the matrix grooves profiled along the profile of the finished product.

FIG. 1 shows an installation for the production of U-shaped products by stamping from a sheet, for example, the front panel of a home refrigerator door;

in fig. 2 - the same, plan view, without the top plate;

in fig. 3 - the same, section A-A, in Fig. 1 - transitions of the 1st bending of the semi-finished product;

in fig. 4 - the same, section b-b, fig. 1 - transitions of the second bending of the semi-finished product;

in fig. 5 - the same, section B-B, in Fig. 1 - transitions of the 3rd bending of the semi-finished product;

in fig. 6 - the same, section Г-Г, in Fig. 1 - transitions of the groove flanging for the built-in handles;

in fig. 7 - shows a semi-finished product along the section Г-Г after flanging grooves for built-in handles;

in fig. 8 - shows a section D-D, Fig. 1 - section of the bending unit in the middle of the ends of the semi-finished product;

in fig. 9 - the same, section E-E, in Fig. 8 - transitions of hemming of the middle of both ends of the semi-finished product;

in fig. 10 - shows a semi-finished product after bending the middle of the ends, top view;

in fig. 11 - the same, view of the end surface of the semi-finished product;

in fig. 12 - shows a section Zh-Zh, in Fig. 1 - transitions of bending of the edges of the ends of the semi-finished product;

in fig. 13 - the same, section II, in Fig. 12 - transitions of bending of the edges of the ends of the semi-finished product;

in fig. 14 - shows the finished product front view and axonometric projection.

The installation contains sequentially installed on the bottom plate 1 on each side relative to the direction of movement of the workpiece 2 being processed, guides 3 and gripping devices 4 for gripping and moving the workpiece and semi-finished product to the position of cutting cutouts and punching grooves, bending and flanging positions.

On the upper plate 5 there are also sequentially installed punching punches 6 for cutting and punches 7 for punching grooves for built-in handles and in pairs at the 1st bending position bending punches 8 with matrices 9 and under them clamps 10, and at the 2nd bending position, also bending punches 11 with clamps 12 and matrices 13 are placed in pairs and at the position of the 3rd bending bending punches 14 with clamps 15 and matrices 16 under them are located in pairs. At the position of flanging grooves for built-in handles there are sliding matrices 17 and punches 18 parallel to the side the sides of the semi-finished product being processed with the possibility of perpendicular movement to the said sides of the semi-finished product, and clamps 19 are installed under them. Above the bending position of the middle of the ends 20 of the semi-finished product 2, there are manipulators 21 for gripping and moving the semi-finished product, both at the position of bending the middle of the ends, as well as at the bending position around the edges. At the bending position of the middle of the ends of the semi-finished product 2, a punch 22 with a clamp 23 is placed above the semi-finished product, and a matrix 24 with a groove 25 is installed under the semi-finished product on the bottom plate 1 and on the sides of the matrix there are movable stops 26 operating from pneumatic cylinders 27.

At the last bending position of the ends 20 along the edges of the semi-finished product 2, punches 28 with clamps 29 are located above it, and dies 30 with a groove 31 are installed on the bottom plate 1, while the dies and grooves are profiled along the profile of the finished product.

The installation works as follows:

The workpiece 2 by the gripping device 4 along the bottom plate 1 is fed to the punching position between the guides 3 to a certain position, and when the top plate 5 is moved down with the punching punches 6, cuts are made at the corners and ends of the workpiece, as well as the punching out by punches 7 of two grooves for the built-in handles ...

With further movement of the semi-finished product 2 to the position of the 1st bending, the semi-finished product is based on the dies 9 and when the clamps 10 move upwards, the bending punches 8 produce the 1st bending. (Fig. 3, transitions I, II, III).

Then the semi-finished product 2 is transferred to the position of the 2nd bending, where it is based on the matrices 13 and when the clamps 12 and bending punches 11 are moved down, the 2nd bending of the lateral sides of the semi-finished product is performed (Fig. 4, transitions I, II, III).

Next, the semi-finished product 2 is transferred to the position of the 3rd bending, based on the dies 16 and when the clamps 15 are moved down, the third final bending of the lateral sides of the semi-finished product is performed with the formation of the final C-shaped profile of its lateral sides (Fig. 5, transitions I, II , III).

After the 3rd bending, the upper plate with punches and clamps moves up and the semi-finished product 2 is fed by the gripper 4 to the position of the grooves for the built-in handles, where the semi-finished product is installed on the sliding dies 17 and the sliding dies 17 are fed under the C-shaped profile of the semi-finished product 2, then the semi-finished product is pressed against the matrices 17 by the clamps 19 and when the punches 18 are moved, the grooves of the semi-finished product are flanged (Fig. 6, transitions I, II, III, IV). Then punches 18, dies 17 and clamps 19 return to their original position.

Next, the semi-finished product is transferred by the manipulator 21 to the position of bending the middle of the ends of the semi-finished product, it is based on the matrix 24 to the stops 26 raised from the pneumatic cylinders 27, after which, when the clamp 23 and the punch 22 are moved down into the groove 25 of the matrix 24, the right side of the middle of the ends of the semi-finished product is bent, ( Fig. 9, transitions I, II, III, IV, V). Then the punch 22, the clamp 23 and the stops 26 return to their original position and the semi-finished product 2 is captured by the manipulator 21 and transferred to the bending position of the middle of the end until the left end of the semi-finished product aligns with the other side of the stops 26 and again when the clamp 23 and the punch 22 are moved down into the slot 25 of the matrix 24, the middle of the end is bent on the other side (Fig. 9, transition VI, VII, VIII, IX). Then punch 22, clamp 23 and stops 26 return to their original position.

Next, the semi-finished product is transferred by the manipulator 21 to the position of finishing processing - bending the ends along the edges of the semi-finished product, where it fits into the groove 31 of the matrices 30, after which, when the clamps 29 and punches 28 are moved down, one end is bending along the edges of the semi-finished product (Fig. 12, transitions I, II, III, IV and Fig. 13, transitions I, II, III, IV, V). Then the clamps 29 and the punch 28 return to their original position (Fig. 12, transitions V, VI). Further, the same operation is performed when the workpiece is moved by the gripper 4 until the other end of the semi-finished product is aligned with the groove 31 of the dies 30 and punches 28 (Fig. 13, transitions VI, VII, VIII, IX), after which the finished product is removed from the installation by the manipulator 4.

The utility model "Installation for the manufacture of U-shaped products by stamping from a sheet, for example, the front panel of a home refrigerator door" is industrially applicable.

At JSC "Production Association" Plant named after Sergo ", design documentation has been developed, an installation has been manufactured and is used in production.

Claims (1)

An installation for the manufacture of U-shaped products in the form of a front panel of a home refrigerator door by stamping from a sheet, containing a lower plate and an upper plate installed with the ability to move relative to the lower plate, and the plates that are configured to form successively positioned cutting positions on the sheet blank and positions the first, second and third bending of the lateral sides of the semi-finished product, guides installed on the bottom plate for moving the sheet blank to the mentioned positions for cutting the notches and the first, second and third bending of the lateral sides of the semi-finished product, dies for bending, punching punches and bending punches installed on the upper plate, in pairs located above the dies for bending, while the position of the third bending is designed to form a C-shaped profile of the lateral side of the semi-finished product, characterized in that it is equipped with sequentially installed after the positions of the first, second and third bending lateral sides of the semi-finished product on the upper plate with punches for cutting grooves for built-in handles with a punch with a clamp for bending the middle of both ends of a semi-finished product, punches with clamps for bending the ends along the edges of the semi-finished product, on the bottom plate with punches for flanging grooves for built-in handles, made with the possibility of being parallel to the lateral sides of the processed semi-finished product and perpendicular to the movement to the said sides of the semi-finished product, a matrix with a groove and stops for basing a semi-finished product, with dies made with slots movement to the lateral sides of the semi-finished product, while the punches with clamps for bending of ends along the edges of a semi-finished product made with the possibility of interaction with the grooves of the matrix, which are made profiled along the profile of the finished product.

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