Multiparameter signal collecting device for rotation processing

The invention provides a multiparameter signal collecting device for rotation processing. The multiparameter signal collecting device is installed on a machine tool spindle and comprises a cone, a dynamometer and a spindle which are sequentially connected. The spindle is connected with a casing through two bearings, the two bearings are axially arranged, and an even number of copper rings are axially arranged between the bearings. Insulation is achieved between the adjacent copper rings, between the copper rings and the spindle and between the copper rings and the bearings. At least one carbon brush module corresponding to the copper rings is installed on the casing. A sensor is electrically connected with the copper rings through a sensing signal transmission line arranged in the spindle; when the carbon brush module is in contact with the copper rings, the sensor transmits sensing signals to the copper rings, and the copper rings output the sensing signals through the carbon brush module.