Patent ID: 6389938
Filing Date: 2002-05-21
Classification: B23B,B23Q,Y10T

Abstract:
A CNC (computer numeral controlled) composite tool holder comprising:a body; an outer cover covering the body; driving parts received in the cover; a spindle rotatably mounted in the body and with both ends extending through the body; a cutter headstock having a central hole to allow the spindle to extend therethrough and to be rotatably mounted in the body; at least one first lathe tool mounted on the cutter headstock; a control rod slidably and rotatably mounted in the spindle; a cutter bracket mounted on the cutter headstock; a control cylinder mounted in the outer cover and connected to one end of the control rod by way of the spindle to control the sliding of the control rod; and a second lathe tool attached to the cutter bracket with a distance to one of the at least one first lathe tool mounted on the cutter headstock being adjustable by the control rod, wherein a circular recess is define around a central hole in the cutter bracket and multiple positioning holes are defined on the cutter bracket to corrsepond to threaded holes in a spindle connector; and when the control rod passes through the central hole in the cutter bracket, bolts pass through the positioning holes to screw into the threaded holes in the spindle connector, resulting in the nut and the locking flange fixedly forcing the cutter bracket onto the cutter headstock.