Patent ID: 7631674

Claim:
A working machine, comprising: a main frame; a work table mounted on the main frame for placing a workpiece; a plurality of working tools movably mounted in the main frame and movable to protrude outwardly from the work table to work the workpiece; a distance adjustment device mounted on the main frame and movable relative to the workpiece to adjust a working position of the workpiece; wherein, the distance adjustment device includes: two guide tracks mounted on two opposite sides of the work table respectively; two positioning members mounted on the two opposite sides of the work table respectively and each located between the work table and the respective guide track; an adjustment unit adjustably mounted on the work table and detachably positioned on the positioning members; wherein the adjustment unit includes: a transverse bracket movably mounted on the guide tracks and movable relative to the work table; two fixing seats each secured on the transverse bracket to move therewith and each movable relative to the respective positioning member; two positioning rods each movably mounted on the respective fixing seat and each detachably positioned on the respective positioning member; two elastic members each mounted in the respective fixing seat and each biased between the respective fixing seat and the respective positioning rod to push the respective positioning rod toward the respective positioning member; a link movably mounted on a side of the transverse bracket and connected to the positioning rods to move the positioning rods; and two handles each pivotally mounted on the transverse bracket and each pivotally connected with the link to move the link.