Novel SMT mounting head

The utility model relates to the technical field of SMT mounting industry, and especially relates to a novel SMT mounting head comprising a mounting head which comprises a substrate. A Z-axis driven belt wheel capable of doing circumferential motion is connected to the base plate, and a Z-axis motor is connected with a Z-axis driving belt wheel. The Z-axis driven belt wheel is in tensioning connection with the Z-axis driving belt wheel through a Z-axis belt; a main shaft of the R-axis motor is connected with an R-axis driving belt wheel, and an R-axis driven belt wheel is in tensioning connection with the R-axis driving belt wheel through an R-axis belt; a sliding base is fixedly connected to the Z-axis belt and connected with a suction nozzle rod capable of moving in the circumferential direction, and the R-axis motor is fixedly connected with the sliding base through a connecting plate. When the surface mount head is used, the spline groove of the suction nozzle rod only has the function of being connected