SU863130A1 - Apparatus for forming in detachable female dies - Google Patents

Description

(54) STAMPING FOR STAMPING IN CONNECTABLE MATRIX

I

The invention relates to forging and stamping, and, in particular, to the design of tools and dies for stamping in separable dies.

A device is known for producing trowels in detachable dies on universal presses, for example, for extruding the crosses of standardized hinges of agricultural machines 1}.

A device for stamping in a separable mold on a press is known, which contains a bottom mounted on the press foot and connected by means of columns with to; The upper cross-matrix-carrying thorns with semi-matrix, clamping and clamping mechanisms of semi-matrix, punch and slider {2.

The disadvantage of this device is that in order to overcome the efforts of opening the semi-matrix and eliminate the formation of burrs in the process of extruding the workpiece on the clamp. semi-matrix high power shields and a powerful hydraulic drive are required.

The purpose of the invention is to reduce the energy consumption for clamping semi-matrix, improving the reliability of clamping semi-matrix.

The goal is achieved by the fact that the mechanism of clamping semi-matrix is performed in the form of breaking arms placed on the lower matrix-carrying plate, driven by the idling cylinder, as well as eccentrics that are pivotally mounted on the movable pin and connected to the power cylinder with a lever clamping mechanism.

The drawing shows a kinematic diagram of a device for stamping in separable matrices.

Claims (2)

, 5 The device contains upper 1 and lower 2 matrix-bearing plates with semi-matrix 3 and 4, an idling cylinder 5, the rod of which is connected through the lever 6 to the lower matrix-bearing plate 2, mounted on the table 7 nptcca, columns 8j, clamp cylinder 9, connected through a lever system installed on a movable crossbar 10, zhodantrikami 11, pin 12 with a punch 13, rigidly fixed on the slider 14. 38 The device works as follows. When air or fluid is supplied to the lower cavity and the idling linge 5, the rod lifts up, releases the levers 6, and the plate 10, (squeezing the coping 8 lowers the upper mattressing plate 1 to fully fit (or with a gap of 0, 2 - 0.5 mm) semi-matrix 3 and 4 Then air is supplied to the protective shell A of the cylinder 9 of the clamp, and through the lever system with eccentrics 11 the semi-matrix is finally clamped with the force necessary to extrude the workpiece. When the press is turned on, the slider 14 together with pl12 and the punch 13 moves down, deformed Transfer of the forces of the idling cylinder through a lever system and the introduction of a cylinder of clamping semi-matrices with a lever system and eccentrics significantly reduces energy costs for clamping and increases reliability for elimination of semi-matrix — the possibility of their opening at the time of drawing 2. in detachable dies, containing a lower mounted on the press table and connected by means of columns with a movable crossbar, the upper matrix of the carrying plates with semi-matrices, the mechanisms of Pressing and clamping semi-matrix, paison and press slider, characterized in that, in order to reduce energy costs, press the die matrices and increase the reliability of their clamping, the clamping mechanism is implemented in the form of breaking arms placed on the lower matrix plate, driven by the idling cylinder, and pivotally mounted on the movable crossmember of the axes connected through the lever) system with a steel cylinder, which is equipped with a clamping mechanism. Sources of information taken into account in the examination 1. B. V. Markovkin and others. Manufacturing of forged crosses in dies with separable dies. КШП № 1, Л969. 2. USSR author's certificate in accordance with the application D 2782642/27, cl. At 21 J 13/02.