Laser trimming device and method for superhard abrasive forming grinding wheel

Abstract

The invention discloses a laser trimming device and method for a superhard abrasive forming grinding wheel. The device is sequentially provided with a reflection lens clamp, a reflection lens base, ahorizontal displacement adjusting table, a vertical displacement adjusting frame and a fixed support along the laser beam emitting direction; and is provided with a constant-angle rotating knob, a displacement lead screw and acoustic emission equipment. The device is a three-degree-of-freedom reflecting lens carrying device which can move in the x direction, the y direction and the z direction androtate around the axis; and a reflecting lens is regulated and controlled to reflect an emergent laser beam at a nearly vertical angle, so that laser energy acts in the horizontal direction and the vertical direction at the same time, and the shaping efficiency is improved by times. A method for coating a laser cross section by the lens clamp is designed, and a modification method for increasingthe laser scanning times in an odd number is provided, so that high modification efficiency and good grinding wheel outline appearance are ensured, and high speed and energy conservation are realized;and a model for sharpening a scanning track of a laser beam on the surface of the grinding wheel is established, and a method for controlling the optimal scanning times and performing layered laser scanning sharpening is provided, so that the effects that abrasive particles are excellent in edging and high in percent of pass are achieved.

Description

technical field [0001] The invention belongs to the technical field of grinding wheel dressing, and in particular relates to a laser dressing device and method for a superhard abrasive formed grinding wheel. Background technique [0002] With the development of modern processing technology towards high speed, high precision and green, and the emergence of new composite materials, precision optical materials and difficult-to-machine materials, the demand for superabrasive grinding wheels such as CBN and diamond in modern grinding is also increasing day by day. For example, diamond grinding wheel, as a superhard abrasive tool, has the advantages of long life, high hardness and good grinding effect, and is often used for precision grinding of optical materials and composite materials. It is generally accepted in the industry that the key to grinding is dressing. However, the dressing of superhard grinding wheels, especially metal-based bond superabrasive grinding wheels, has al...

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Problems solved by technology

[0004] The object of the present invention is to provide a laser dressing device and method for superabrasive shaped grinding wheel, which has solved the problems of low efficiency in high-energy beam processing such as mechanical, electrolytic dressing and laser dressing mentioned in the background technology

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