DEVICE FOR AUTOMATIC CHANGING OF TOOL ON METAL-CUTTING MACHINE TOOL

摘要

A tool storage drum (42) which is adapted to receive and store a plurality of toolholders is rotatably mounted on top of the upright of a horizontal machining center behind the spindle (34) thereof. A tool changer carriage (44) carrying a tool change arm (46) is pivotally mounted on the upright above the spindle (34) and is pivotable between a parked position in which an end of the tool changer arm (46) is adjacent to the tool storage drum (42) and an exchange position in which an end of the tool changer arm (46) is adjacent to the spindle. <??>The tool changer arm (46) is slidably mounted on the carriage (44) for movement between an extended and a retracted position to remove toolholders from their sockets or insert them therein and is rotatable through 180 DEG to interchange its ends for the purpose of exchanging a tool in the spindle (34) for a tool previously removed from the tool storage drum (42).