Motorbike sparepart groove polishing device and implementation method

The invention discloses a motorbike sparepart groove polishing device and an implementation method. The motorbike sparepart groove polishing device comprises a bottom plate and a polishing device body. The polishing device body comprises a fixing column, a screw rod, a lifting motor, a slide block, a telescopic rod, a fixing block, a rotary motor, a transmission shaft and polishing heads. The bottom of the fixing column is perpendicularly fixed to the top of one side of the bottom plate. A groove is formed in one side of the fixing column. One end of the screw rod is rotationally connected with the bottom of the groove through a bearing. The top of the screw rod penetrates through the top of the fixing column to be fixedly connected with an output shaft of the lifting motor, and the jointsof the screw rod and the fixing column are rotationally connected through a bearing. The slide block is installed on the screw rod. One end of the telescopic rod is fixed to one side of the slide block, and the fixing block