A work piece dimension measurement instrument for numerical control milling process center

The utility model discloses a work piece dimension measurement instrument for numerical control milling process center, comprising a base plate, the downside of bottom plate is provided with first pneumatic cylinder, on first cushion and the second cushion through the bolt respectively fixed mounting have a fixed mounting seat and the 2nd fixed mounting seat, there is the lead screw through bearing fixed mounting between a fixed mounting seat and the 2nd fixed mounting seat, fixed mounting has servo motor on the 3rd fixed mounting seat, servo motor's output shaft passes through shaft couplingand screw rod transmission connection, the cover is equipped with the slider on the lead screw, fixed mounting has the second pneumatic cylinder between fourth fixed mounting seat and the 5th fixed mounting seat, fixed mounting has the electromagnetic acoustic calibrator on the calibrator mount pad. The utility model discloses adjustable electromagnetic acoustic calibrator high be position aroundand about, and to carrying