A kind of optical cone grinding and polishing device and method

Abstract

The invention belongs to the field of optical device processing, and discloses an optical cone grinding and polishing device and method. The device includes a support frame, a movable mechanism, a thimble, a flat polishing disc and a polishing disc motor; the movable mechanism is installed on the support frame, and the movable mechanism has two degrees of freedom of movement: the first degree of freedom of the end rotation, and the rotation center and the end The second degree of freedom perpendicular to the rotation axis; the end of the movable mechanism is used to connect the cone to be processed; the thimble is located in the plane where the rotation axis at the end of the movable mechanism moves in the second degree of freedom; the flat polishing disc is universally connected with the thimble The thimble is connected to the motor shaft of the polishing disc, and a polishing material layer is arranged on the surface of the flat polishing disc. Connect the cone to the shaft end of the movable mechanism, adjust the contour line of the cone to the level, and polish it with a helical trajectory around the axis of the cone. , swing speed and amplitude control.

Description

technical field [0001] The invention relates to the field of optical device processing, in particular to an optical cone grinding and polishing device and a polishing method. Background technique [0002] Lasers used in aviation, aerospace, military defense and other fields have the demand for miniaturization and light weight, leading to major changes in the principle and structure of lasers. Therefore, a large number of heterogeneous optical elements are required in the design of lasers. Special optical properties are used more and more. In the application environment of high-energy laser, in order to ensure the quality of laser beam, the components are required to have extremely high mechanical precision and optical index requirements. The existing planar, spherical or aspherical The processing principles and methods are not suitable for the polishing of the conical surface, especially the realization of the extremely high optical processing index of the conical surface. T...

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Problems solved by technology

[0002] Lasers used in aviation, aerospace, military defense and other fields have the demand for miniaturization and light weight, leading to major changes in the principle and structure of lasers. Therefore, a large number of heterogeneous optical elements are required in the design of lasers. Special optical properties are used more and more. In the application environment of high-energy laser, in order to ensure the quality of laser beam, the components are required to have extremely high mechanical precision and optical index requirements. The existing planar, spherical or aspherical The processing principle and method are not suitable for the polishing of the conical surface, especially the realization of the extremely high optical processing index of the conical surface. There is little research in China, and the processing level of the components cannot meet the needs of high-precision comprehensive indicators.

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