Patent ID: 7591620
Filing Date: 2009-09-22
Classification: B23C,B23Q,H02K,Y10T

Abstract:
1. A milling and drilling machine comprising: a rigid machine tool frame comprising two generally parallel side walls having inner sides and front end portions, and an upper crossbar attached to said side walls; a machining unit movable on said upper crossbar along at least two coordinate axes and including a rotationally driven work spindle configured to engage exchangeable tools; a front end comprising the front of said machine tool frame and having horizontal guide rails mounted on said front end; a workpiece table arrangement comprising a table top for clamping a workpiece, said workpiece table arrangement being disposed on said horizontal guide rails so as to be movable in a Y coordinate axis; elongated supports on said front end are provided on which said guide rails for said workpiece table arrangement are mounted, said supports being adjacent to said inner sides of said side walls of said machine tool frame; and two electrically synchronized linear motors provide the drive for the shifting movements of said workpiece table arrangement along the Y coordinate axis, said motors having secondary and primary parts, the secondary parts of said motors being attached to said inner sides of said side walls of said machine tool frame, the primary parts of said motors being vertically mounted to said workpiece table arrangement.