Patent ID: 8033766
Filing Date: 2011-10-11
Classification: B23B,B23C,B23Q,Y10T

Abstract:
1. A tool holder, comprising: a body having a ball clamping mechanism aperture; a cutting head having a cutting end portion, a tapered end portion, and a middle portion located between the cutting end and the tapered end portion; a retention knob located at the tapered end portion of the cutting head, the retention knob including a generally spherical end portion at least partially disposed within the body, the generally spherical end portion including an upper spherical clamp surface and a lower spherical clamp surface; and a ball clamping mechanism received in the ball clamping mechanism aperture of the body, the ball clamping mechanism comprising: wherein rotation of the double-ended clamp screw in a first direction causes the generally cylindrical upper and lower clamp surfaces of the upper and lower clamps to move toward each other and engage the generally spherical upper and lower spherical clamp surfaces of the retention knob, respectively, and wherein the generally cylindrical upper and lower contact surfaces elastically deform during engagement with the generally spherical upper and lower clamp surfaces of the retention knob to form a lenticular contact area and securely hold the cutting head in face contact with the body and place the tool holder in a locked position.