Machining process of large-diameter plane mirror
A processing technology and flat mirror technology, which is applied to metal processing equipment, machine tools suitable for grinding workpiece planes, manufacturing tools, etc., can solve the problems of large-diameter flat mirrors such as difficult processing, complicated process, and high production cost, and optimize the surface of the workpiece Aperture, simple operation steps, the effect of improving the quality of the workpiece
Active Publication Date: 2020-11-27
马鞍山市江南光学有限公司
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[0006] Aiming at the problems of large-diameter flat mirrors that are difficult to process, complex in process, and high in production cost, the present invention provides a large-diameter flat mirror processing technology with simple operation steps, and adopts classical polishing method as the final polishing process, which reduces production costs. At the same time, it ensures high production efficiency and finished product pass rate
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[0039] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.
[0040] Such as figure 1 As shown in , a large-diameter flat mirror processing technology, the large-diameter flat mirror described in the present embodiment is an aircraft instrument cover flat mirror, the overall size is 220mm * 188mm * 10mm, the processing steps are as follows:
[0041] Step 1. Coarse grinding and forming: rough grinding and forming according to the size of 220mm×188mm×10.40mm. After rough grinding, use a Φ200mm flatness detector to detect the surface of workpiece 1. It is required that the surface shape of both sides of workpiece 1 is ≤0.005 mm;
[0042] Step 2, fine grinding...
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The invention discloses a machining process of a large-diameter plane mirror, and relates to the technical field of plane mirror machining. The machining process of the large-diameter plane mirror comprises the first step of coarse grinding, the second step of finish grinding and polishing of a first surface, the third step of finish grinding and polishing of a second surface, and the fourth stepof sequential finish polishing of the two surfaces through a classical polishing method. In the fourth step, a workpiece is bound on an aluminum base plate through a plurality of conical glue points so as to be polished. According to the machining process, the operation steps are simple, and the classical polishing method is used in the final polishing procedure, so that the production cost is reduced, and the production efficiency and high qualification rate of finished products are high; in the classical polishing process, the to-be-polished workpiece is connected to the aluminum base platethrough the conical glue points, and uniform pulling force is provided for the surface of the workpiece by means of the glue points to ensure that the tension on the surface of the workpiece is uniformly distributed, so that the deformation of the workpiece in the polishing process is reduced, the wear difference from the edge to the center of the workpiece is reduced, the aperture of the surfaceof the workpiece is optimized, and the quality of the workpiece is improved.
Description
technical field [0001] The invention relates to the technical field of plane mirror processing, in particular to a large-diameter plane mirror processing technology. Background technique [0002] Small deviations in aircraft instrument readings may pose serious safety hazards. Therefore, aircraft instrument covers usually use high-precision flat mirrors. The function is to make the pointer coincide with its image in the mirror, so that people can clearly see when reading. Minor changes in gauge needles. The process steps for domestically processing such aircraft instrument cover plane mirrors usually include: rough grinding, fine grinding, rough polishing and fine polishing, etc. At present, the commonly used fine polishing technologies at home and abroad mainly include: classical polishing method polishing, ring polishing machine polishing, magnetorheological polishing, ion beam polishing and jet polishing. Among them, classical polishing method polishing and ring polishi...
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Login to View More IPC IPC(8): B24B7/24B24B41/06
CPCB24B7/241B24B7/242B24B41/06
Inventor 王永伟马成金正彬
Owner 马鞍山市江南光学有限公司