Lathe tailstock centering type chuck

The utility model discloses a lathe tailstock centering type chuck, which relates to the technical field of lathes and comprises a chuck body, one side of the chuck body is provided with a through cavity, and the chuck body is fixedly connected with a mounting block between the adjacent through cavities; the first connecting mechanism is mounted in the center of the chuck body; the clamping mechanism is installed on the chuck body, the clamping mechanism comprises a sliding groove formed in the chuck body, and the interior of the sliding groove is connected with a clamping jaw in a sliding mode; the centering mechanism is mounted in the center of the chuck body, and the centering mechanism comprises a center head clamped in the chuck body; the second connecting mechanism is mounted on the first connecting mechanism; according to the centering type chuck of the lathe tailstock, a workpiece firstly abuts against the centering center head, the centering purpose is achieved after the workpiece abuts against the c