Power transmitting device of tooling pallet

The utility model provides a power transmitting device of a tooling pallet, which belongs to the field of the mechanical technology. The problem that power supply of a driving motor on the present tooling pallet is inconvenient is solved. The power transmitting device of a tooling pallet comprises a power switch device arranged on the tooling pallet and a power transmitting device arranged at the inner side of a transmitting wire; the power switch device possesses three conductive copper bar contacts which are electrically connected with the driving motor on the tooling pallet; the power transmitting device comprises a push-and-pull cylinder; the piston rod of the push-and-pull cylinder is fixedly connected to three live-line spring carbon brushes corresponding to the conductive copper bar contacts; the telescoping of the push-and-pull cylinder enables the three live-line spring carbon brushes to be contacted to the three conductive copper bar contacts for a power-on operation or to be disengaged from the thr