Cup-shaped arc grinding wheel in-place finishing method based on cradle type five-axis numerical control machine tool

Abstract

The invention discloses a cup-shaped arc grinding wheel in-place finishing method based on a cradle type five-axis numerical control machine tool. The method is used for ultra-precision grinding and aims to solve the problem that an existing cup-shaped arc grinding wheel is not easy to finish. The finishing method comprises the steps that a finishing grinding wheel is installed on a rotary table of the numerical control machine tool, and a cup-shaped arc grinding wheel to be finished is installed on a machine tool spindle; intermittent trimming and opposite grinding of the inner arc and the outer arc of the finishing grinding wheel and the cup-shaped arc grinding wheel to be finished are achieved through an arc enveloping trimming track; and in-situ measurement is performed on the grinding wheel through a calibrated laser displacement sensor. According to the finishing method, the cup-shaped arc grinding wheel of the cradle type five-axis numerical control machine tool is subjected to in-place finishing, the problem that the cup-shaped arc grinding wheel is difficult to finish due to the fact that the arc is prone to interference is solved, the influence of grinding wheel abrasion on the high-precision requirement of a workpiece is reduced, the compensation machining frequency is reduced, deterministic machining is achieved, and the machining efficiency and the machining quality of the whole workpiece are improved.

Description

technical field [0001] The invention belongs to the technical field of precision machining, and in particular relates to an in-situ dressing method of a cup-shaped arc grinding wheel based on a cradle-type five-axis numerical control machine tool. Background technique [0002] Hard and brittle materials have excellent properties such as high strength, high hardness, and high wear resistance, and are widely used in national defense and civilian fields such as optics and machinery. However, this type of material has high brittleness, low fracture toughness, and the elastic limit is very close to the strength limit. When the load on the material slightly exceeds the elastic limit, fracture damage will occur. Brittle materials are generally processed by grinding, and the grinding process includes rough grinding and fine grinding. The grinding of hard and brittle materials mainly uses diamond abrasive grinding wheels. The grinding wheel of CNC machine tools will cause high tempe...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the gaps in the existing field, the present invention provides an in-situ dressing method for cup-shaped arc grinding wheels based on a cradle-type five-axis CNC machine tool, with the purpose of solving the problem of cup-shaped arc grinding wheels dressing

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