Patent ID: 6019555
Filing Date: 2000-02-01
Classification: B23B,Y10T

Abstract:
A debur tool for simultaneously removing burrs from a hole in a plate workpiece and chamfering an edge of the hole, comprising:an elongated shaft with a substantially constant diameter and a central longitudinal axis the elongated shaft having two distinct ends;a chuck area, the chuck area being positioned at one end of the elongated shaft;a cutting area, the cutting area being positioned at the other end of the elongated shaft, the cutting area having a variable diameter which is greater than the substantially constant diameter of the elongated shaft, a portion forming a vertical side of the cutting area which is parallel to the central longitudinal axis of the elongated shaft, and a first radius R.sub.1 measured from the central longitudinal axis of the elongated shaft to the portion forming the vertical side;a cutting edge connected to the cutting area, the cutting edge being oriented parallel to the central longitudinal axis of the elongated shaft, positioned on a portion of the cutting area which is opposite the portion forming the vertical side of the cutting area; and having a radius R.sub.2 measured from the outermost portion of the cutting edge to a point which is horizontally offset from the central longitudinal axis of the elongated shaft, wherein R.sub.2 is greater than R.sub.1 ; andchamfer means including a beveled surface connected to the cutting area adjacent the cutting edge for chamfering the edge of the hole.