Patent ID: 7537420

Claim:
A working machine, comprising: a base having a top face provided with a work table for placing a workpiece; a working mechanism mounted on the base and movable relative to a first face of the workpiece; a clamping unit mounted on the base and movable relative to a second face of the workpiece; a linkage mounted on the base and connected to the working mechanism and the clamping unit to drive the working mechanism and the clamping unit to move relative to the workpiece simultaneously; a drive unit mounted on the base and connected to the linkage to drive the linkage; wherein the working mechanism includes two tracks secured in the base, a slide movably mounted on the tracks, and at least one working tool mounted on the slide to move therewith and located opposite to the work table; each of the tracks has an axially extending elongated slot; the clamping unit includes two clamping bars, each pivotally mounted on the base and each having a first side formed with a press portion located above the work table of the base and a second side formed with a drive portion extended into the base and directed toward a straight direction the same as that of the press portion, and a clamping block mounted between the press portions of the clamping bars and located opposite to the work table; the linkage includes two first links each having a first end pivotally mounted on the drive portion of the respective clamping bar of the clamping unit, two second links each having a mediate portion pivotally mounted on a second end of the respective first link, and two third links each having a first end pivotally mounted on a first end of the respective second link and a second end pivotally mounted on the slide through the elongated slot of the respective track.