Double-deflection light beam shaping device for concave surface forming grinding wheel and machining method

Abstract

The invention discloses a double-deflection light beam shaping device for a concave surface forming grinding wheel and a machining method. The double-deflection light beam shaping device comprises a supporting base assembly, a vertical displacement motion table and deflection laser trimming devices, wherein the vertical displacement motion table is fixed to the supporting base assembly and used for installing a to-be-trimmed concave grinding wheel, the two deflection laser trimming devices are fixed to the left side and the right side of the vertical displacement motion table correspondingly, laser heads are arranged on the deflection laser trimming devices so as to trim the concave face of the to-be-trimmed concave face grinding wheel, and each deflection laser trimming device comprises a rotating plate direct drive motor, a rotating plate and a laser horizontal adjusting assembly. According to the technical solution, the two laser beams with the deflectable angles are used for conducting concave surface forming trimming on the concave surface super-hard abrasive grinding wheel, and the forming contour precision and trimming efficiency of concave surface trimming are improved.

Description

technical field [0001] The present application relates to the technical field of grinding wheel shaping, in particular, to a double deflection beam shaping device for a concave shaped grinding wheel and a double deflection beam shaping processing method for a concave shaped grinding wheel. Background technique [0002] In recent years, with the continuous improvement of processing accuracy and processing quality requirements, superabrasive grinding wheels are widely used in grinding, precision and ultra-precision grinding of difficult-to-machine materials because of their high hardness and good wear resistance. Among them, the concave superabrasive grinding wheel is a kind of difficult-to-machine grinding wheel with complex profiles. The concave surface needs to be processed with more materials. The traditional machining methods and EDM methods have low processing efficiency and large loss of dressing tools. Poor performance, pollution to the environment and other shortcomin...

AI Technical Summary

Problems solved by technology

[0004] However, the current laser trimming device mainly adopts a single laser non-deflection trimming method. As the depth of the laser processing groove deepens, during the laser trimming process, since the laser is a kind of focused light, the spot radius at the unfocused laser position is larger than that of the focused point. Radius, resulting in a part of the laser will be blocked by the initial trimming plane, so that the energy falling into the focal plane is reduced, resulting in less energy of the laser beam, and the material removal ability of the laser beam is reduced, resulting in material accumulation on the surface. With the trimming depth increase, the more material formed on the concave groove surface will accumulate, which will lead to the formation of a conical contour that does not match the actual design concave surface contour during the concave groove laser processing of the concave superabrasive grinding wheel, resulting in poor dressing quality and contour accuracy. Low-level defects greatly affect the forming of the concave surface of superabrasive grinding wheels and the application of laser dressing technology

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