| 摘要 |
PURPOSE:To manufacture the working machine in the title at a low cost by calculating a distance between the base circle center of a scroll shaped involute part and the center of a working tool, and an angle of rotation of a headstock by means of particular equations to make driving control of a moving base and the headstock. CONSTITUTION:The radius of the base circle of a scroll shaped involute part formed in a workpiece is defined as 'a', an involute angle as theta, an angle from the moving axis of the 1st moving base 23C to a involute starting point as psi, and the diameter of the blade circle of a working tool 24 as D, respectively, and the distance x from the center of the said circle to the center of the tool 24 is calculated by the controller using equation I. Next, the rotation angle C of a headstock 22A is calculated depending on the distance x using equation II, and the movement of the first moving base 23C of a machine tool body 20 and the rotation of the headstock 22A are controlled. This mechanism enables the scrolling work only by the rotation of the workpiece and the movement of the working tool in one axis (x axis) direction. As only two working axes are necessary for the simultaneous work, this equipment can be prevented from its large size and can be manufactured at a low cost. |
