Patent ID: 6705191
Filing Date: 2004-03-16
Classification: B23D,B23Q,Y10T

Abstract:
A machine tool circular cutting supplementary apparatus adapted to hold a workpiece in the worktable of a machine tool for enabling said workpiece to be cut along a circle that has been drawn on said workpiece when the user rotates said workpiece relative to the machine tool circular cutting supplementary apparatus, the supplementary apparatus comprising:an adjustment unit vertically slidably and horizontally rotatably mounted on the worktable of the machine tool and being held in position by a first locking means; a locating block mounted on a top side of said adjustment unit, said locating block provided with a first transverse through hole and a second transverse through hole; a horizontal rod axially slidably inserted through the first transverse through hole of said locating block and being held in position by a second locking means; a positioning member mounted on one end of said horizontal rod, said positioning member providing with a tip adapted to engage the center of the circle drawn on said workpiece after said workpiece has been put on the worktable of the machine tool for cutting; and an adjustment rod slidably inserted through the second transverse through hole of said locating block and being held in position by a third locking means, said adjustment rod provided at one end thereof with a threaded portion.