METHOD FOR DRILLING AT LEAST TWO HOLES IN A TWO-STEP CYCLE

摘要

A dual-spindled machining unit (2) that can move along a first travel axis (Y) and a linear carriage unit (3) with a dual clamping device (4), whereby the linear carriage unit can move along a second travel axis (X) independently of the machining unit and the following steps are carried out successively: a first hole is made in a first workpiece (5.1.) (cycle no. 1), a second hole is made in the first workpiece (5.1) and a first hole is made simultaneously in a second workpiece (5.2.) (cycle no. 2), the first workpiece (5.1) is removed, a third workpiece (5.3) is loaded, a second hole is made in the second workpiece (5.2) and a first hole is made simultaneously in the third workpiece (5.3).