Abstract: In order to facilitate the manufacture and inspection of cutting head of roadheader, a mathematical model for pick location is established. Then, using the two point method, the inspection of pick’s space angle positioning parameters is transformed into the inspection of coordinates of two points at the pick axis, which also is checked at the machine tool coordinate system. At last, the fixture for pick location is designed, which can decrease the error of pick holder welding.

Key words: Roadheader, Cutting head, Pick location, Fixture