Compression jig for balancing machine de-weight station taper hole positioning workpiece

The utility model relates to the technical field of balancing machines, in particular to a pressing jig for a balancing machine de-weight station taper hole positioning workpiece, and the pressing jig comprises a balancing machine workbench which is used for measuring the dynamic balance amount of a mounting disc; the steering mechanism is arranged on the balancing machine workbench and is used for driving a to-be-tested mounting disc to steer; the positioning mechanism comprises a positioning shaft core and a telescopic driving part for driving the positioning shaft core to be separated from the inner hole of the mounting disc, and the telescopic driving part and the positioning shaft core synchronously rotate along with the steering mechanism; the pressing mechanism is used for abutting against and fixing a to-be-tested mounting disc on the positioning shaft core; the driving mechanism is used for driving the pressing mechanism to do reciprocating motion in the direction facing or deviating from the positio