apparatus for the control of geometric properties of mechanical parts in rotation symmetry and its control method

摘要

PCT No. PCT/EP89/00315 Sec. 371 Date Jul. 24, 1990 Sec. 102(e) Date Jul. 24, 1990 PCT Filed Mar. 22, 1989 PCT Pub. No. WO89/10531 PCT Pub. Date Nov. 2, 1989.The geometrical features of a part (6) having center seats are electronically checked by processing signals of gauging heads (14-17) that relate to linear dimensions of the part together with signals of other gauging heads (30, 31) adapted to define a reference geometrical axis. In order to obtain checkings of high accuracy, the reference geometrical axis is defined by means of two gauging heads (30, 31), each of which has a feeler (67, 72) movable along the three directions that is adapted to cooperate with a respective center seat.