Twinspindle machine tool with two workholders, one of which is adjustable

摘要

A double-spindle machine tool comprises two work holding fixtures (32, 33) for accommodation of a respective work (37). The work holding fixture comprises a base plate (34) and an abutment (45) which is adjustable parallel to a plane spanned by the axes of rotation (21, 22) and crosswise of the direction of the axes of rotation. The abutment is provided with an adjusting device. A double-spindle machine tool comprises a frame (1); two tool-holder spindles (18, 19) which have parallel axes of rotation that are disposed at a distance (96) from one another; two work holding fixtures for accommodation of a respective work; and devices for displacement of the works relative to the tool-holder spindles. A work holding fixture comprises a base plate and an abutment which is adjustable parallel to a plane spanned by the axes of rotation and crosswise of the direction of the axes of rotation. The abutment is provided with an adjusting device. A distance measurement device is provided, detecting changes in the distance of the axes of rotation. A control system is provided which is connected to the distance measurement device on the one hand and to an actuating device for the adjusting device on the other hand; and which is embodied for triggering the actuating device in dependence on the measured changes in the distance.