Manipulator with functions of charging tray feeding and discharging and product placing

The utility model discloses a mechanical arm with functions of charging tray feeding and discharging and product placing, and aims to provide a mechanical arm with functions of charging tray feeding and discharging and product placing, which is simple and compact in structure, high in automation degree, accurate in charging tray positioning and automatic in product placing, and the production cost of enterprises is reduced. The material tray grabbing mechanism comprises a base and a supporting stand column, the supporting stand column is fixedly arranged at the upper end of the side edge of the base, a mechanical arm is arranged at the upper end of the supporting stand column, and a material tray grabbing mechanism and a product grabbing mechanism are arranged at the movable end of the mechanical arm. The upper end of the base is provided with a feeding positioning module and a discharging positioning module which are located in front of the supporting stand column and used for positioning a material disc, an