A Correction Method for Model Repair of Optical Parts
A technology for optical parts and mold repairing, which is applied in the direction of grinding/polishing equipment, metal processing equipment, manufacturing tools, etc. It can solve the problems of high mold hardness, low processing efficiency, poor stability of mold repair accuracy, etc., and achieve mold repair accuracy High, fast trimming, good stability
Active Publication Date: 2021-06-22
NANYANG LIDA PHOTOELECTRIC
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Problems solved by technology
This method has many disadvantages: first, it is difficult to correct, and the shape of the spherical or plane surface is unstable when the mold is repaired by hand, making it extremely difficult to control the shape of the spherical or plane surface; second, the processing efficiency is low, and the hardness of the mold itself is very high and The burrs on the edge of the mold are irregular, and it takes 4-6 hours to correct a mold, and batch processing cannot be completed; the third is that the manual repair method is highly dependent on the skills of the personnel, and the skills of the correctors are high, so it is necessary to assign special personnel to make corrections ; Fourth, the stability of mold repairing accuracy is poor, and standardized operations cannot be realized
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[0019] The following will be described in detail in conjunction with the technical solutions in the embodiments of the present invention:
[0020] refer to figure 1 , figure 2 Shown, a kind of correcting method of optical part mold repairing, described method first processes several pieces of lens 1 (common optical glass material can be, just can be ordinary optical glass material, The lens material selected in this article is H-K9L), and the appropriate milling wheel 2 grain size is selected, generally between 80# and 240# (this paper uses a grinding wheel with a grain size of 150#), and other grain sizes can also be used according to the needs of use. The grinding wheel, the caliber of the milling grinding wheel 2 is generally larger than half of the outer diameter of the pill trimming 3 and smaller than the outer diameter of the pill trimming 3; The opening radius of each lens is 1, and the dial gauge is used for zero calibration. The diameter of the bezel opening used s...
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The invention discloses a correction method for mold repairing of optical parts. Firstly, the lens is selected to open the radius, and according to the simplicity of controlling the surface shape of the lens, the machine is quickly adjusted to meet the surface shape required for use; and then through processing the lens, it can be used The light transmission effect of the lens, adjust the milling equipment, the adjustment amount is half of the diameter of the convex hull, which can realize the rapid adjustment of the machine to solve the problem of the center bump; finally, the appearance of the mold repaired by the pellets processed on the milling equipment is very Put the processed pellets on the interferometer to test the working surface. By adjusting the light knife time of the milling equipment, the surface irregularities can be controlled within △N<0.3. The invention has high processing precision, can realize standardized operations, has low dependence on personnel skills and high processing efficiency, is suitable for mass production, and simultaneously realizes rapid trimming and detection of repairing molds for processing.
Description
technical field [0001] The invention relates to the technical field of high-precision optical equipment processing, in particular to a method for correcting molds of optical parts. Background technique [0002] The shape of the mold for optical parts processing is spherical (convex spherical / concave spherical) or flat. At present, the correction method of repairing molds for optical parts processing is mainly carried out by manual repair. This method has many disadvantages: first, it is difficult to correct, and the shape of the spherical or plane surface is unstable when the mold is repaired by hand, making it extremely difficult to control the shape of the spherical or plane surface; second, the processing efficiency is low, and the hardness of the mold itself is very high. The burrs on the edge of the mold are irregular, and it takes 4~6 hours to correct a mold, and batch processing cannot be completed; the third is that the manual repair method is highly dependent on th...
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IPC IPC(8): B24B1/00B24B19/20
CPCB24B1/00B24B19/20
Inventor 杨晓辉张小斌王磊
Owner NANYANG LIDA PHOTOELECTRIC