Driving device for controlled displaceable carriages

Abstract

The invention relates to a driving device for controlled displaceable carriages of machine base frame in machine tool; the driving device is provided with a controllable electric motor mounted on a shaft(1); the controllable electric motor comprising a stator (2) and a rotor (03), a pinion (12) positioned on the shaft (1) and driven by the electric motor and a gear rod (13) joggled with the pinion (12); wherein the gear rod (13) is arranged at a machine base frame; and at least two movable bearings (09, 10) for supporting the shaft (01); wherein the movable bearings (09, 10) are mounted in the void of the housing plate (06). The driving device according to the invention is characterized in that: a movable bearing is configured into a fixed bearing (09) and a bearing is configured into a floating bearing (10); the rotor (03) and the shaft (01) are connected through the fixing element of the machine.

Description

technical field

[0001] The invention relates to a drive for a machine tool for a controllably movable slide relative to the machine bed according to the preamble of appended claim 1 . Background technique

[0002] Generic drives are used, for example, on tool and other production machines with long linearly guided axes or slides which are moved in a controlled manner.

[0003] Linear axes, with which long and mechanically rigid axes can be realized, are currently usually driven by means of trapezoidal, spherical or roller screw drives. However, since there are often no hollow-shaft motors available, the spindle or the spindle nut and the electric servomotor have to be coupled by means of toothed belts. For reasons of power matching, a front-mounted transmission is generally required.

[0004] The disadvantage of these solutions is that these systems are structurally complex and expensive to acquire due to the large number of components required (spindle, spindle nut, tooth...

Images