Seed crystal grip

The utility model provides a seed crystal grip for the seed crystal is drawn to fixed carrying, including collet body, it connects the chamber to run through in the collet body to be provided with, connect the chamber including first connecting portion, and collet body is at the lateral wall downwardly extending of first connecting portion departments and the supporting part that forms to the axle center shrink, the lateral wall of supporting part is the toper, collet body runs through in combination department of first connecting portion and supporting part and is provided with the locating hole, the locating hole with be connected the chamber and be linked together, be provided with the locating pin in the locating hole, the locating pin is the lateral wall of salient supporting part upper end partially to the support is on the seed crystal. A seed crystal grip, utilize conical supporting part lateral wall and locating pin support seed crystal for the lifting surface area of seed crystal is big, and stress