An expander positioning device

Abstract

The utility model discloses an expand core positioning device, including first sheath, first expand core axle, a plurality of jacks, a plurality of reset components, first sheath includes the first through -hole of the axis, first end, second end, the same circle on first end evenly formed with a plurality of second through -hole, first expand core axle includes third end, fourth end, along the circle of third end evenly formed with a plurality of both ends intercommunication's first recess, and both ends are located respectively on the side of third end, can extend to with the intersection of axis, first expand core axle installs in first through -hole, each second through -hole is corresponding with each first recess respectively, jack installs in second through -hole, and one end is located in first recess, reset component is connected with jack, first sheath respectively, when first expand core axle removes, jack slides in first recess, second through -hole, adjusts the length of its convex second through -hole, when reversely removes, jack adjusts the length of retracting to second through -hole in through reset component. Improve the efficiency of dismounting and reassembling and the efficiency of changing production and positioning accuracy.

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