Drive apparatus having a force transmission means that can be moved by gravitational force

摘要

The invention relates to a drive apparatus (10) for the linear movement of a processing tool with respect to a workpiece, having a tool holder (18) which is fixed on a carriage (16) and is intended for the fastening of the processing tool, having a stationary guide device (12) in which the carriage (16) is guided such that it can be displaced in a vertically linear manner, and having a drive device (42) with a first force transmission means (46) which, in an engaged position, engages with a second force transmission means (40) connected to the carriage (16) in order to move the carriage (16). According to the invention, it is provided that the drive device (42) is mounted in the guide device (12) such that it can be moved between a release position, in which the force transmission means (40, 46) do not engage with one another, and the engaged position in such a way that the gravitational force of the drive device (42) causes a movement from the release position into the engaged position.

主权项

1. A drive apparatus for linear movement of a processing tool with regard to a work piece, having a tool holder fixed in place on a carriage, for attaching the processing tool, having a guide device that is fixed in place, in which device the carriage is guided vertically in linearly displaceable manner, and having a drive device that has a first force transfer device that stands in engagement with a second force transfer device connected with the carriage, in an engagement position for movement of the carriage, wherein the drive device is mounted in the guide device so that the drive device is movable between a release position, in which the first and second force transfer devices are not in engagement with one another, and the engagement position, in such a way that the gravitational force of the drive device brings about a movement from the release position into the engagement position, and wherein the drive device is attached to the guide device so as to pivot, in limited manner, about a pivot axis that is fixed in place.