Eccentricity calibration system for crankshaft grinding machine

The invention discloses an eccentricity calibration system for a crankshaft grinding machine, and the system comprises an induction block which is disposed at a first end of a counterweight block guide rail of a support, and the support is driven by a motor; the four inductive switches are fixed on the bracket main body of the bracket; and the processor is configured to calculate the motor output torque measured when the induction block rotates to pass through the four induction switches under the condition that the balancing weight is installed at the center position of the balancing weight guide rail, and adjust the position of the balancing weight on the balancing weight guide rail based on the measured motor output torque so as to compensate the eccentricity of the crankshaft. By means of the eccentricity calibration system, the eccentricity of the crankshaft can be rapidly judged and adjusted so as to improve the working efficiency; the device can be integrated on an existing equipment structure, mechani