Chip breaking device of superhard lathe tool

The utility model discloses a chip breaking device of superhard lathe tool, characteristics are including chip breaking piece and the blade press plate of fixed mounting on the handle of a knife, the chip breaking piece is located the up end of blade, the blade is fixed on the handle of a knife, be provided with on the chip breaking piece and need not to carry out the chip breaking piece fixing device that changes to original structure of lathe tool, chip breaking piece fixing device includes base and stud, be provided with first screw hole on the base, be provided with the second screw hole on the chip breaking piece, the screw thread opposite direction of first screw hole and second screw hole, stud's both ends correspond ground and first screw hole respectively, second screw hole looks spiro union, the up end of base is provided with the indent, blade press plate's front end stretches into in the indent and pushes down the base, the advantage is that this chip breaking device utilizes superhard lathe tool