Rotary guide frame for radial drilling machine - is held in bearing rings for swivel movement above lower frame

摘要

The radial drilling machine has a drilling column and a lower frame, with a column guide frame, acting as a rotary frame, installed between them to form a combines assembly with the column. The guide frame is rotatably fixed at its lower end to the lower machine frame, and is raised up from its bearing position to absorb bending and torsional forces. The bearing (1) for relative swivel movement between rotary frame (2) and lower frame (3) is disengaged from machine working pressure and clamping force arising from the fixture of the rotary frame (2) to the lower frame (3), since it (1) is directly or indirectly connected to the rotary frame (2) and via bearing rings (5, 6) to the lower frame (3). The rotary frame (3) has a stop (7), enabling it to be clamped (11) to the lower frame (3).