Patent ID: 6164635
Filing Date: 2000-12-26
Classification: B25B

Abstract:
A milling machine vise for gripping a workpiece, comprising:(a) a base comprising(i) a fixed jaw face supported at a fixed jaw end,(ii) a mounting block supported at a second end,(iii) a glide surface between said fixed jaw end and said second end, and(iv) left and right ways bordering parallel sides of said glide surface; and(b) a movable jaw comprising(i) an upper jaw piece supporting a traveling nut at a crank end and forming orthogonal, chamfered faces at a moving jaw end, and having edge located slots extending from said moving jaw end to said crank end and which engage said left and right ways,(ii) a U-shaped lower jaw piece having parallel left and right legs fitting into hollow receptacles in said upper jaw piece, and having a traverse head at right angles to said left and right legs, and forming a moving jaw face, and(iii) two adjusting screws threaded into openings in said crank end of said upper jaw piece and threadedly engaging internal tapped openings in said parallel legs; wherein(c) said orthogonal, chamfered faces on said upper jaw piece contact matching orthogonal, chamfered faces on said traverse head of said lower jaw piece thereby allowing relative motion of said upper jaw piece with respect to said lower jaw piece to be controlled by adjusting said screws, and thereby allowing said upper jaw piece to cant within said ways while said lower jaw piece remains in contact with said glide surface thereby maintaining said fixed jaw face and said moving jaw face parallel when gripping said workpiece displaced from a center line of said vise.