Automatic changeable transmission for drill has displacement devices, whereby spindles can be moved between retracted rest position and extended working position

摘要

The transmission (1) includes at least two drilling spindles (2) with tools (4) to drill workpieces (6); a housing (8) for the spindles; an interface (12) for the main spindle (22); and a coupling sector (14) to receive the transmission in a tool magazine. The spindles can be moved in the housing between a retracted rest position and an extended working position.