Novel expander fixture

The utility model relates to a novel expander fixture which comprises a fixture body. The novel expander fixture is characterized in that a pulling sleeve, a central spindle and an expanding sleeve are installed in the fixture body in sequence, wherein the pulling sleeve is capable of moving forward and backward, the central spindle and the expanding sleeve are fixed on the fixture body, and the expanding sleeve is connected with the pulling sleeve through pulling nails. A subsidiary expanding sleeve is installed outside the expanding sleeve and is clamped inside a locating plate, and the locating plate is fixed on the fixture body. The novel expander fixture has the advantages of being reasonable in structure, fast in exchanging speed, high in locating precision and the like, can achieve the processing of similar series parts on one fixture, greatly improves production efficiency and processing functions of a machine tool, reduces the invest of work fixtures, and reduces producing cost. Therefore the novel e