Automatic tool changing method and apparatus
Tool changer machining center
Tool changer for vertical spindle machine
Automatic tool exchanging apparatus of machine tool
ApplicationNo. 112647 filed on 08/26/1993
US Classes:483/12, WITH SIGNAL OR INDICATOR408/239R, With tool-retaining means409/230, Detachable or repositionable tool head409/231Cutter spindle or spindle support
ExaminersPrimary: Briggs, William R.
Attorney, Agent or Firm
Foreign Patent References
International ClassesB23Q 003/157
AbstractHigh speed cutting with machine tools is achieved with readily available bearings of a small diameter by mounting and presetting the cutting tool directly in a spindle of a spindle unit without employing a tool holder. Preferably, the spindle unit is small like a tool holder and can be easily changed with conventional kinds of tool changing apparatus. The elimination of the tool holder allows the conventional bearings to be kept small so that they may be operated at high speeds, e.g., 20,000 to 40,000 rpm, without excessive heat that would damage the bearings.