Patent ID: 6085622
Filing Date: 2000-07-11
Classification: B23Q,Y10T

Abstract:
A machine tool comprising:a machine frame with an underframe,a machine stand seated on the underframe and having a support ring,a carrier mounted on the support ring for rotation about an essentially vertical axis,said carrier having a plurality of workpiece receiving means arranged thereon for receiving workpieces to be machined,an operating area extending around said vertical axis, the workpiece receiving means being movable around the vertical axis in said operating area due to rotation of said carrier, anda plurality of stations arranged on the machine frame in the region of the operating area, said workpiece receiving means being positionable in said stations during a machining cycle, wherein:the machine stand has a reinforcement casing that fixes the support ring in relation to the underframe,said casing extends outside the operating area and at least partially surrounds the operating area at its peripheral side facing away from said vertical axis and thereby forms a casing surface extending at least half way around said vertical axis,the casing comprises casing supporting structure elements extending in said casing surface, said supporting structure elements absorbing forces that act in the casing surface and are transferred from the support ring in a manner rigid against deformation, andsaid supporting structure elements are connected with one another to form a casing surface supporting structure that is rigid against deformation.