Portable ultrahigh-pressure water jet cutting mechanism for blast furnace cooling wall

The invention discloses a portable ultrahigh-pressure water jet cutting mechanism for a blast furnace cooling wall. The mechanism comprises a water jet cutting head, a mounting base, an X-axle motionunit, a Y-axle motion unit and a Z-axle motion unit, wherein the X-axle motion unit and the Y-axle motion unit correspondingly comprise guide rails, guide rods and racks vertically arranged, horizontal slide blocks sliding along the guide rails, and guide rods sliding along fixed blocks; the horizontal slide blocks and the guide rods are correspondingly driven through driving gears and servo motors; the driving gears are engaged with the racks; the horizontal guide rails and the racks are arranged on the mounting base; the Z-axle motion unit consists of fixed slide plates arranged at the tailends of the guide rods, and slide plates sliding along the fixed slide plates; clamping bases are arranged on the slide plates; and the water jet cutting head is arranged on the clamping bases. The mechanism is positioned and