SU1412873A1 - Tool for forge broaching - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to the structures of devices for the manufacture of parts with an extended axis. The purpose of the invention is to increase productivity by carrying out joint processing of the workpiece by straightening and drawing. The tool contains a cut-out hammer, installed with the possibility of limited reciprocating mixing along and across the pressure axis in a plane perpendicular to the axis of the draw, and the fastening assembly of the hammer is made in the form of a female frame with its moving frame. On two opposites, their faces of the striker, the through guide grooves under the frame sections are made. The facing surfaces of the die-cutter and the base are flat and evenly inclined with respect to vertical planes of symmetry passing through their intersection lines. When the tool is in operation, it is possible to move the die head not only along the pressure axis, but also across it. By positioning the boom of the workpiece deflection in the direction of movement of the striker, it is possible while simultaneously drawing the curvature of the forging axis. 3 il. (ABOUT

Description

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The invention relates to the processing of metals by pressure and can be used in the manufacture of forgings with an extended axis on presses.

The purpose of the invention is to increase the productivity during forging by making forgings with a bent axis directly during drawing.

FIG. 1 shows a tool for forging forgings, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - the same, perspective view.

The forging tool contains an upper movable flat head 1 and a lower notched head 2 mounted with the possibility of limited reciprocating movement along the pressure axis and across it in a plane perpendicular to the axis of the stretch, on the base 3 by means of a fixing unit.

The attachment unit of the cut-out die 2 includes guides 3 mounted rigidly on the base 3, as well as a frame 6 spring-loaded by means of elastic elements 5 relative to the base 3, covering the cut-out die 2 and installed with the possibility of reciprocating movement along the pressure axis

The two opposite sides of the frame 6, facing the side planes of the milled striker 2, perpendicular to the axis of the broach, are located in through slots made on the indicated sides of the carved striker. The support surface 7 of the die-cutter 2 and the surface 8 of the base 3 facing towards it are made flat, equally inclined relative to the vertical planes of symmetry passing through their intersection lines and converging to the bottom plane of the base.

The tool for forging forgings works as follows.

When applying the curved workpiece 9 to the working surface of the cut-out striker 2, the latter moves along the frame 6 in the direction of the curvature of the forging until the workpiece is installed in the center of the notch of the striker 2. When the top striker acts on the workpiece, and through it on the cut-out die 2, a joint vertical displacement occurs frame 6 with cut-out striker 2 to the contact of one of the reference planes

7c corresponding inclined plane

8base 3.

Further shifting of the suppressed frame and striking downwards causes a displacement

the latter along the frame until the angular protrusion of the striker 2 is fully aligned with the angular groove of the base 3. With the indicated movement, the sparks & Then plastic deformation of the workpiece occurs.

After removal of the load, the upper face 1 rises by the movable head plate of the press, and the frame 6 is returned by the elastic elements 5 along the guides 4 to the initial position. Then, the next section of the curved workpiece is fed into the tool for drawing forgings and the dressing-drawing process is repeated.

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For normal operation of the tool, it is necessary that the boom of the workpiece deflection be located in the plane of movement of the corner part of the notch of the striker, and the fixing end of the workpiece device has freedom of movement along the vertical and is centered with the plane of symmetry of the base 3.

Claims (1)

Invention Formula A forging tool, including a movable top flat head and mounted on the base by means of a fixing unit, a cut-out block, characterized in that, in order to increase productivity by performing forgings with a bent axis directly during the draw, the cut-out block is installed with the possibility of limited return -accessible movement along and across the pressure axis in a plane, perpendicular to the axis of the draw, its attachment unit is designed as a striker embracing along its lateral surface of the frame spring-mounted relative to the base and rigidly connected to the base, the frame is mounted with the possibility of reciprocating movement along the pressure axis along the indicated guides: on the pair of opposite faces of the striker, perpendicular to the axes of the draw, through-go guides are made the grooves under the frame areas facing these faces, and the supporting surfaces of the cut-out die and the bases facing one another are flat and inclined relative to the vertical planes of symmetry passing through their intersection lines and converging in the direction of the lower plane based; .