RU1809791C - Press tool for forming hollow pieces - Google Patents

Abstract

Usage: when processing pressure hollow products from sheet material. SUMMARY OF THE INVENTION: in the lower part of the die there is a support 2 for mounting the product, a wedge 5 and a guide 6. In the upper part, a wedge is fixed 8. When lowering the upper part along the prismatic protrusion

Description

fig.

the wedge 8 is moved by a guiding slider 9 with a prismatic channel. A wedge 10 is connected with a key 9 with a key 11. When the slider 9 moves relative to the wedge, the wedge 10 also moves relative to the guide 6. Together with the wedge 10, they move in the direction of the support 2 hole punch 13 and trimmer knife 14. 1 s.p. f-ly, 4 ill.

The invention relates to tooling for pressure treatment of hollow sheet metal products.

The aim of the invention is to provide a compact design and improve product quality.

Figure 1 shows the stamp in the lower position, a longitudinal section; figure 2 is a section aa in figure 1; in Fig.Z - section bB in Fig.1; in FIG. 4 - stamp in the upper position, a longitudinal section.

The stamp contains the bottom plate 1, a support 2 fixed thereon, a carrier matrix 3 for punching holes and a knife 4 for trimming. A wedge 5 is fixed on the plate 1 and a guide 6 with inclined surfaces is movably mounted on it. In the upper part of the die, there is a base 7, to which a system of wedges is connected, including a wedge 8 with a prismatic protrusion, a guide cushion 9 and a wedge 10 connected by a key 11c with a guide cushion 9. With the wedge 10, by means of an intermediate plate 12 A puncheon 13 for punching and a knife 14 for trimming are known. Wear plates 15 and plates 16 are fixed to the guide cushion 9. The plates 16 are fixed by bolts 17. The plates 15 and 16 together form a channel whose shape corresponds to the shape of the prismatic protrusion of the wedge 8 (Fig. 2). An element 19 is mounted on the bottom surface of the wedge 10 by means of bolts 18, which is in contact with the guide b along a U-shaped surface. A hole is made at the end of the wedge 8 and an elastic element is installed in it, in the form of a spiral spring 20. And a screw 21 is screwed. A stop bar 23 is fixed to the guide cushion 22 with bolts 22, fixing the position of the spring 20 in the hole, To limit the movement of the wedge 10 relative to the wedge 8, a stop 24 is fixed on the guide cushion 9. A rubber buffer 26 is mounted on the intermediate plate 1.2 by means of a bolt 25. A bar 27 is mounted on the wedge 10 with bolts 26, which serves to force the wedge to be moved when. lifting the upper part of the stamp (Fig.Z), the stamp works as follows. The workpiece is placed on the support 2. Lower the upper part of the stamp.

The wedge 10 moves together with the creeper 9 relative to the wedge 8 and along the U-shaped channel relative to the wedge 5. In the lower position of the upper part of the stamp, the punch 13

in cooperation with matrix 3, punches a hole, knives 14 and 4 cut.

When lifting the upper part of the stamp under the action of the elastic element 20, the wedge 1.0 moves in the direction from the bar 23 to

stop 24 and this stop stops. The strap 27 captures the wedge 5 and thus provides for the forced movement of the wedge 10.

When the plates 15 are worn, the plates 16 are biased and thus the prismatic guide is kept unchanged in order to move relative to the prismatic protrusion of the wedge 8.

Claims (2)

1. A stamp for processing hollow products, comprising in the lower part a plate, a support fixed thereon for mounting the product with a die for punching holes and a knife for trimming placed on the support, a wedge and a movable guide mounted on the plate, and also containing a base in the upper part, another dl knife. trimmings associated with the base of the wedge system, at least one of which mounted for movement relative to the base and along a prismatic groove made in one of the wedges, and a punch punch mounted on one of the movable wedges, about t l. and moreover, with the fact that the wedge mounted on the upper base is made with a prismatic protrusion, the guide for moving this wedge is made in the form of a crawler with a U-shape a groove for accommodating the prismatic protrusion, a wedge bearing a punch connected by a key with a guide cushion and mounted to move along the guide located in the lower part, the stamp is equipped with wear plates placed on the guide cushion and forming the walls of the U-shaped groove, parallel to the faces of the prismatic protrusion in contact with them, with plates mounted on the guide cushion with the possibility of movement and forming, together with the wearing straps, a prismatic channel , an element mounted on a wedge movable along the lower guide, and in contact with this guide on a U-shaped surface, and is also equipped with a means of limiting the relative movement of the wedges placed in the upper part, made in the form of an opening in the wedge mounted on 0 the upper base of the elastic element located in the hole and the abutment plate fixed on the upper guide and limiting the position of the elastic element, another cutting knife is mounted on a wedge movable along the lower guide. 2. A stamp according to claim 1, characterized in that the elastic element is made in the form of a spiral spring. FIG. / FIG. 2