Mechanical type core anchor clamps that expand

The utility model discloses a mechanical type core anchor clamps that expand relates to machining equipment technical field. Mechanical type core anchor clamps that expand installs the part that is used for the clamping to process on the lathe main shaft, include: core, bloated core, ring flange and drag link mechanism expand, the core installation of expanding is fixed on the ring flange, the ring flange is fixed on the lathe main shaft, core that expand is a diameter -variable's axle sleeve, be provided with the centre bore on the ring flange, core that expand passes core that expand insidewith be connected to behind the centre bore of ring flange on the drag link mechanism, the drag link mechanism drives core that expand is in move on the bloated core axis, make the size of bloated core enlarges or recovers with loading and unloading the part. Mechanical type core anchor clamps that expand simple structure, easy dismounting, accurate, the different internal diameter hole parts of ability clamping in locati