Self-oscillation pulse abrasive flow nozzle for polishing and grinding

The utility model discloses a self-oscillation pulse abrasive particle flow nozzle for polishing and grinding, which relates to the technical field of surface finish machining and comprises a nozzle body and an oscillation pulse cavity arranged in the nozzle body, and the oscillation pulse cavity is formed by sequentially communicating a first resonant cavity, a communicating channel and a second resonant cavity. Wherein the first resonant cavity and the second resonant cavity are both conical collision angle resonant cavities, according to the design scheme, the self-oscillation mechanism of fluid and the mechanism of soft abrasive flow polishing are combined, and the double-cavity self-oscillation pulse abrasive flow polishing nozzle is provided. The machining efficiency of the low-viscosity abrasive flow polishing method is improved by generating higher peak velocity, peak pressure and higher turbulence intensity through the self-excited oscillation characteristic of the polishing solution abrasive flow, a