Importance

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Abstract

A forging machine has four rams arranged at 90.degree. to one another in a cruciform manner in one plane; these act radially upon the workpiece, guided longitudinally in the system axis, and are equipped with tools. In order that the tools may form a closed pass contour in different adjustable stroke-end positions they are connected to the rams by way of supports and are displaceable transversely to the ram axis, releasable clamping members being provided which each lock a support against a front face of a ram. The suction arising during separation of the supports from the front faces of the rams can lead to the penetration of dirt (scale) into the gaps between the front faces of the rams and the supports. The supports (17) are provided with locking teeth (40) on their sides parallel to the displacement plane, the teeth (40) extending transversely to the displacement direction, and locking members (42), locked on the rams (2) in the displacement direction, can be engaged and disengaged with the locking teeth. In particular, the locking members (42) are secured to the ram (2) so as to be pivotable about shafts (41) parallel to the displacement direction and are provided at their free ends, facing the supports (17), with teeth corresponding to the teeth (40) on the supports (17). This minimises the risk of suction due to separation of the support from the ram.

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First Claim