Novel variable limiting mechanism of multi-axis heterogeneous holder pitching device

The utility model discloses a novel variable limiting mechanism of a multi-shaft heterogeneous holder pitching device. The novel variable limiting mechanism of the multi-shaft heterogeneous cradle head pitching device comprises a pitching shaft driven by a cradle head main machine, a limiting cover is fixed to the outer wall of a box body of the cradle head main machine, the pitching shaft extends out of a center hole of the limiting cover, a pitching shaft flange is fixed to the outer end of the pitching shaft, a plurality of threaded through holes are evenly distributed in the circumference of the pitching shaft flange, and the threaded through holes are communicated with the limiting cover. A connecting block is fixed to the outer end face of the pitch shaft flange, a pitch mechanism mounting plate is fixed to the outer side of the connecting block, a C-shaped groove is formed in the circumference of the outer end face of the limiting cover, the C-shaped groove and the limiting cover are coaxial with the p