Work piece height finding device

The utility model discloses a work piece height finding device, locate the support body on, including crimping portion, height finding portion, extension spring subassembly and three sharp driver, height finding portion and crimping portion are setting side by side, the extension spring subassembly links to each other with height finding portion, crimping portion installs on the output of first sharp driver, crimping portion moves to the position with the measured workpiece butt along vertical orientation under of the ordering about of a linear actuator, third straight line driver is installed on the output of second straight line driver, height finding portion installs on the output of third straight line driver, height finding portion does flexible motion along vertical direction through the extension spring subassembly under of the ordering about of the 2nd linear actuator, height finding portion moves along the horizontal direction under of the ordering about of third straight line driver, height finding portion by along level and the motion of vertical direction aims at the subsides dress portion that arranges the measured workpiece in the holding district in and measures the high coordinate of this subsides dress portion. The whole structure is simple and compact, effective the cost is reduced to the work piece has been protected.