MOBILE PRECISION BORING TOOL

摘要

The mobile drilling apparatus includes both a rotary drive (15) and a separate forward thrust drive (25) for the tool spindle (1). A measurement system (24) is provided for detecting the path of the forward thrust. The forward thrust drive is controlled by a computer in dependence on the axial forward thrust path so that the tool spindle is driven by the rotary drive with a predefined load speed or with a predefined load moment. The lubricant supply is controlled in dependence on the predefined load speed or the predefined load moment.