A moving section of a parallel mechanism is fed having two freedoms. A first moving section base is screw-engaged with a first feed screw shaft, and a second moving section base is screw-engaged with a second feed screw shaft. A spindle head is pivotably connected by a support shaft to the first moving section base. A coupling shaft at an extreme end of an extension lever extending downward from the spindle head is rotatably coupled to a guided piece on a slant linear guide provided on the second moving section base and is coupled to the second moving section base. Thereby, a tilt function maintaining advantages of a tandem drive and being high in rigidity is realized without increasing control axes beyond the number of axes corresponding to tandem axes.