Auxiliary device for accurate butt joint of hydraulic engineering pipelines

The utility model relates to the technical field of water conservancy project pipeline accurate butt joint, in particular to an auxiliary device for water conservancy project pipeline accurate butt joint, which comprises a base, a groove I arranged on the surface of the base, a telescopic sleeve inserted in the groove I, a fixed clamping piece base and a groove II arranged on the top surface of the telescopic sleeve and arranged on the surface of the fixed clamping piece base. A bearing and a guide rod are arranged in the groove II, the guide rod penetrates through the surface of the fixing clamping piece base and is fixed to the surface of the fixing clamping piece base, the screw penetrates through the fixing clamping piece and is inserted into the inner ring surface of the bearing, one end of the screw is fixedly connected with the inner ring surface of the inner ring of the bearing, and the screw is in threaded connection with the fixing clamping piece; the auxiliary device for precise butt joint of the h