Self-centering turbine assembly fixture

The utility model discloses a self-centering turbine assembly fixture. The self-centering turbine assembly fixture comprises a positioning shaft, a positioning sliding block, an ejector rod, a separation blade and a handle. A sliding block installing groove and an ejector rod installing hole are formed in the positioning shaft, the center line of the sliding block installing groove is perpendicular to the axis of the positioning shaft, and the sliding block installing groove is communicated with the outer circumferential surface of the positioning shaft and the ejector rod installing hole. The positioning sliding block is arranged in the sliding block installing groove, and a first slope is arranged on the side, towards the ejector rod installing hole, of the positioning sliding block. The ejector rod is arranged in the ejector rod installing hole, and a second slope matched with the first slope is arranged at the lower end of the ejector rod. The separation blade is fixedly arranged at the upper end of the p