Full-section channel joint cutter

The utility model relates to a full-section channel joint cutter, and belongs to the technical field of channel concrete lining construction equipment. Comprising a main truss provided with a walking mechanism, a transverse walking frame arranged on the main truss, a lifting frame arranged on the transverse walking frame and a joint cutting assembly fixedly arranged at the lower end of the lifting frame. The transverse walking frame transversely moves on the main truss, and the lifting frame ascends and descends on the transverse walking frame. The joint cutting assembly is controlled by the transverse walking frame and the lifting frame to move. The joint cutting assembly comprises a joint cutting piece driven by a motor. According to the joint cutting machine suitable for the channel, the transverse moving frame and the lifting frame are arranged, the joint cutting assembly is arranged at the lower end of the lifting frame, under the combined action of the transverse moving frame and the lifting frame, the