Multifunctional fixture

The invention discloses a multifunctional fixture, and relates to a fixture. The multifunctional fixture comprises a mounting seat, a clamping block, a lead screw, lead screw nuts, pushing polished rods and guide rods, wherein the inner center of the mounting seat is provided with a central block; two ends of the mounting seat are independently provided with a polished rod guiding groove, and thepolished rod guiding grooves are in sliding cooperation with two ends of the pushing polished rods; the mounting seat is also connected with two ends of the lead screw; two ends of the lead screw havedifferent rotation directions; the mounting seat is independently provided with centrosymmetric fixture block guiding grooves; the middle of each pushing polished rod is fixedly connected with the lead screw nuts; clamping block supporting elements are independently sheathed on two sides of the lead screw nuts on each pushing polished rod; the middle of each clamping block supporting element is in sliding fit with each cl