The invention provides a full-automatic steel rail accurate
grinding machine which comprises a fixing frame and a
grinding device arranged on the fixing frame. The fixing frame comprises a fixing transverse frame and fixing vertical frames, the
grinding device comprises a grinding motor, a rotating shaft of the grinding motor is connected with a
grinding wheel, a moving belt is arranged between the two moving vertical frames, the moving belt is moved left and right through a reciprocating motor, the
grinding wheel is connected with a feed motor through a
speed reduction moving transmission device, the fixing vertical frames are provided with a control processor for controlling the grinding motor, the feed motor and the reciprocating motor, and the two ends of the moving belt are provided with proximity switches. According to the automatic steel rail accurate grinding
machine, the structure is simple, the components are clear in division of work, the weight is low, workers can carry themachine on site, on-site carrying is convenient, a grinding curve is automatically generated through an
eddy current sensor, a temperature sensor and the control processor, the grinding path is controlled, the grinding speed is high, grinding precision is high, the steel rail connector maintenance speed can be improved, and steel rail connector maintenance quality is ensured.