CNC processes positioning jig

The utility model discloses a CNC processes positioning jig, including the rectangle bottom plate, the last surface mounting of rectangle bottom plate has two positioning unit, positioning unit is including the vacuum suction board who is used for placing the work piece, vacuum suction board is equipped with a plurality of vacuum adsorption hole that are used for adsorbing the work piece, vacuum suction board is the rectangle, has four sides all around, and wherein two adjacent side peripheries are equipped with two sets of locating pins of fixing on the bottom plate, and two other side peripheries are equipped with the two sets of auto -lock cylinders of fixed mounting on the bottom plate, the outputting direction of two sets of auto -lock cylinders perpendicular and when driving two ejector pads and move to vacuum suction board can with the work piece support tightly arrive two sets of locating pins on, the beneficial effects of the hand and wrist rehabilitation evaluation monitoring device are that, the ut