The invention discloses a modularized
harmonic drive
numerical control rotary table which comprises a
harmonic speed reduction part, a power supply part, a
hydraulic brake part, an auxiliary output part and a fixing shell. The
harmonic speed reduction part, the power supply part, the
hydraulic brake part and the auxiliary output part are all arranged on the fixing shell. The harmonic
speed reduction part comprises a harmonic speed
reducer, an input shaft, a transmission
flange, an output shaft and an output disc, wherein the harmonic speed reduction part is arranged on the fixing shell, the input shaft and the transmission
flange are both arranged on the harmonic speed
reducer, and the output shaft is arranged on the transmission
flange. The power supply part comprises a protective shell, a motor, a transmission part and a tensioning part, wherein the protective shell, the motor and the tensioning part are all arranged on the fixing shell. The transmission device is reasonable in structural design, simple in structure, high in transmission precision, large in
bearing capacity and rigidity, long in service life, high in transmission efficiency, simple in manufacturing process, low in manufacturing cost, free of regular back clearance adjustment and suitable for being used in a
large range.