Patent ID: 6814526
Filing Date: 2004-11-09
Classification: B23B,Y10T

Abstract:
A cutting insert holder comprising:a body forming a rear part and upper and lower front parts, the upper and lower front parts projecting forwardly from the rear part, the upper and lower front parts spaced apart by a gap to enable the upper and lower front parts to move toward one another, the upper front part joined integrally as one piece with the rear part at a location defining a fulcrum for the upper front part, a tongue projecting from the lower front part, and a clamping finger projecting from the upper front part and overlying the tongue in spaced relationship thereto, to form an insert seat therebetween, the clamping finger and the tongue being narrower than each of the upper and lower front parts, the tongue and the clamping finger being movable toward one another as the upper and lower front parts move toward one another; and a clamping mechanism disposed in the body and including: a drawbar extending slidably through a bore formed in one of the upper and lower front parts and fixedly secured directly to the other of the upper and lower front parts, the bore widening into a space that opens at an outer surface of the body, the drawbar including a head disposed in the space and having an abutment surface, and a tightening screw threadedly connected to the body and projecting into the one of the upper and lower front parts at an angle relative to the bore and having first and second end sections, the first end section being accessible to a tool for rotating the tightening screw to advance the tightening screw in a direction for bringing the second end section thereof into engagement with the abutment surface to displace the drawbar relative to the one of the upper and lower front parts in a direction toward the outer surface and forcing the tongue and the clamping finger toward one another.