Patent ID: 6387025
Filing Date: 2002-05-14
Classification: B23Q,Y10T

Abstract:
A tool machine comprising:two main spindles supported by a spindle position interchanger, the interchanger rotating about a turning axis: a. a column for rotating in increments of 180 about said turning axis; b. a first main spindle head provided at a first position and vertically movable along said column; c. a second main spindle head provided at a second position opposite to said first position at 180Â° and vertically movable along said column; and d. driving motors for individually rotating each main spindle; e. one of said first and second positions is positioned at a tool working position; another is positioned at an interchanging position for interchanging a tool mounted on the main spindle head; f. a tool interchanging device for interchanging a tool mounted on one of said main spindle heads at said interchanging position; and g. control means for starting rotation of said main spindle head on which an interchanged tool is mounted prior to reaching said working position.