AUTOMATIC FASTENING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an automatic fastening machine capable of at least corresponding to members to be fastened of plurality of types, which are different in fastening torque in an inexpensive and simple structure. SOLUTION: This automatic fastening machine fastens bolts previously arranged at equal circumferential spaces for connecting differential gear case assemblies (combination of a differential gear case and a drive gear) to each other at the mutual jointing parts with a nut runner. AC servo nut runners 15A, 15B are used as the nut runner, and supported on an elevating table 7 to be indexing-rotated by a rotating indexing mechanism 20.