FIELD: machine engineering.SUBSTANCE: device comprises platform for placing the spindle or instrumental unit mounted on the front and rear posts by means of cylindrical hinges for moving the platform by a movement mechanism. The posts have brackets for attachment to the foundation base. In addition, the posts are connected to the brackets by means of cylindrical hinges. One end of the movement mechanism is attached to the shaft of cylindrical joint, which connects one of the posts with the platform, and the other end connects to the shaft of the cylindrical joint connecting the other post through the bracket with the foundation base.EFFECT: use of the invention makes it possible to get more simple design of the device, while maintaining its rigidity and reliability in operation.1 dwg