Lathe clamping positioner

The utility model discloses a lathe clamping positioner which comprises a chassis (1), a screw (2) mounted on the chassis (1) and a pressing plate (3) screwed on the bolt (2). The chassis (1) is mounted on the end part of a spindle of a lathe or mounted on the end part of the spindle of the lathe through a flange; and a plurality of chip spaces (4) are arranged on the end surface of the chassis (1) tightly close to a workpiece. The lathe clamping positioner has the advantages of being capable of timely discharging scrap irons or iron wires generated by processing during the processing and guaranteeing the clamping positioning of the workpiece, thus guaranteeing the processing precision of the workpiece.