Patent ID: 8414233

Claim:
A moving section turnable machine tool having a moving section which is fed by two synchronized axes along an arbitrary one axis of X, Y and Z-axes being three orthogonal axes, the machine tool comprising: a pair of drive axes for feeding the moving section, the drive axes being shifted in the relative position along any one of two other axes than the arbitrary one axis; a first moving section base linearly movably guided on a first linear guide and driven by one drive axis of the pair of drive axes in synchronously moving the moving section; a second moving section base linearly movably guided on a second linear guide and driven by the other drive axis of the pair of drive axes in synchronously moving the moving section; a configuration including a single axis pivotably attaching the moving section directly to the first moving section base such that the moving section is able to pivot only about the single axis relative to the first moving section base; and a link mechanism connecting the moving section with the second moving section base so that the relative motion of the second moving section base to the first moving section base causes the moving section to be pivoted about the other axis of the two other axes than the arbitrary one axis, wherein the link mechanism comprises: an engaging piece extending from the moving section as one body; and a third guide comprising a linear guide provided on the second moving section base and having a stroke which is able to absorb a component, normal to the axial direction of the other drive axis, of a circular arc motion which is given to the engaging piece with the pivot movement of the moving section; and wherein the engaging piece is guided for linear movement on the third guide.