US 4,546,683 AGranted

Method of and a cutting press for separating parts from a workpiece plate

AssigneeBehrens AG

InventorsElmar Volkel, Walter Bredow

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Abstract

Parts which cannot fall because of their dimensions through an opening of a lower tool are separated from a workpiece plate in a cutting press with an immovable support, a coordinate table, two lateral workpiece supports movable parallel to the y-axis and a transverse carriage displaceable in the direction of the x-axis and having clamping elements, and with a central workpiece support of a plurality of articulately connected supporting elements displaceable in the direction of the y-axis so that a discharge opening for the separated part of the workpiece plate is openable or closable, in such a manner that first a cutting tool separates a workpiece part so as to retain at least one connecting web between separating edges of the workpiece plate and the workpiece part located transverse to the direction of movement of the central workpiece support, the workpiece plate and workpiece support being positioned by the coordinate table above the discharge opening, and before opening of the discharge opening the connecting web is removed by displacement of the central workpiece support from the workpiece plate with the aid of a special separating device on the cutting press.

Claims9

Dependent claims

A method of separating a workpiece part from a workpiece plate in a cutting press with an immovable support in an operating region of a tool, with a controlled coordinate table for a workpiece positioning and having two lateral workpiece supports movable parallel to the y-axis and defining a space for the immovable support as well as a guide rail connecting said lateral workpiece supports and provided with a transverse carriage movable in the direction of the x-axis and carrying clamping means for the workpiece plate, and with a central workpiece support located between the lateral workpiece supports before the immovable support and composed of a plurality of supporting elements displaceable in the direction of the y-axis from the immovable support so that a discharge opening is formed between the immovable support and a first supporting element facing thereto and openable for discharging the separated workpiece part of the previously withdrawn workpiece part or closable by return movement of the supporting elements the method comprising the steps of separating a respective workpiece part with the aid of a cutting tool so as to retain at least one connecting web between separating edges of the workpiece plate and the workpiece part, the edges extending transverse to the direction of movement of the central workpiece support;

positioning the workpiece plate and the workpiece part by the coordinate table above the discharge opening;
and removing the connecting web after said positioning and before opening of the discharge opening, by displacing the central workpiece support from the workpiece part.

A cutting press for separating a workpiece part from a workpiece plate, comprising an immovable support surrounding an operating region of a tool;

a control coordinate table for a workpiece positioning and including two lateral workpiece supports movable in the direction of the y-axis and providing a space therebetween for said immovable support as well as a guiding rail with a transverse carriage movable in the direction of the x-axis and carrying clamping means for a workpiece plate;
a central workpiece support located between said lateral workpiece supports before said immovable supports and including a plurality of articulately connected supporting elements displaceable in the direction of the y-axis from said immovable support so that a discharge opening is formed and openable and closable between said immovable support and a first supporting element facing thereto for discharging the separated workpiece part and openable for discharging the separated workpiece part of the previously withdrawn workpiece plate or closable by return movement of the supporting elements;
a cutting tool for cutting the workpiece part from the workpiece plate so as to retain at least one connecting web between separating edges of the workpiece tool and workpiece plate, the separating edges extending transverse to the direction of movement of said central workpiece support;
and a separating device operative for separating the connecting web after the positioning of the workpiece plate and the workpiece part by the coordinate table above said discharge opening and before opening of said discharge opening.

1 more element

Dependencies are inferred from the claim text.