Adjustment to compensate for wear of cutting tool on a CNC machine tool has cutter spindle moved by spreader bar

摘要

The CNC machine tool cutter spindle [2] an adjuster ring [8] having an internal thread [10] and an external gear tooth profile [11] that is engaged by an adjuster plate [20]. As the ring is turned the tool spindle is moved axially relative to a tapered spreader bar [5] to provide the compensation for tool wear.