Coordinate measuring apparatus for determining geometry or coordinates of workpieces, has measuring head, X-table or Y-table designed as cast piece, where X-table is movably guided over recirculating ball bearing guide along coordinate axis

摘要

The coordinate measuring apparatus (10) has a measuring head (34) for determining spatial coordinates in a measuring workpiece. An X-table (22) or a Y-table (24) is designed as cast piece. The X-table is arranged on the Y-table and is movably guided over a recirculating ball bearing guide along a coordinate axis (18). A recirculating ball bearing guide has an X-guide rail and a linear ball bearing unit interacting with the X-guide rail. The X-guide rail is arranged on the Y-table. The linear ball bearing unit is arranged on the X-table, particularly is embedded in the X-table.