Efficient non-isothermal compression molding device and method of ultra-precision glass lens

Abstract

The invention discloses an efficient non-isothermal compression molding device and method of an ultra-precision glass lens, for solving such problems caused by the existing isothermal hot compression molding device of a precision aspherical glass lens at home and abroad as the molding period is long, the molding efficiency and production efficiency are low, the service life of a mold is short, the utilization rate of the mold is low and the manufacturing cost of a workpiece is high. The non-isothermal compression molding device comprises a workbench, a lower mold holder, an upper mold holder, a pressurizing cloud deck, a vacuum hood, vacuum connecting tubes and the like. The non-isothermal compression molding device disclosed by the invention has the characteristic of parallel operation of heating, molding, annealing and cooling processes, the production efficiency is 2-3 times as high as before, the temperature difference fluctuation of the mold in each cycle can be decreased from more than 500 DEG C to 80 DEG C, the cold-hot fatigue of the mold is effectively reduced, the service life of the mold is significantly prolonged, the utilization ratio of the mold is improved, the manufacturing cost of the workpiece is greatly reduced, the large-scale production of the aspherical glass lens is significantly pushed forward and thus the non-isothermal compression molding device has significant economic value and social benefits and also has wide market prospects.

Description

technical field [0001] The invention belongs to the technical fields of near-net shaping, ultra-precision machining, and precision compression molding, in particular to a glass molding device, in particular to a high-efficiency ultra-precision glass lens non-isothermal compression molding device and a molding method. Background technique [0002] Since entering the 21st century, with the development of digital technology, the rapid growth of the 3C industry (Computing / computing, Communication / communication, Consumer electronic products / consumer electronic products), and global digital products (such as digital cameras, smart phones, The demand for wearable products, etc.) is increasing year by year, and the demand for glass optical components such as high-precision aspheric lenses, microlenses, microlens arrays and diffractive lenses is increasing. According to statistics, by 2015, the demand in various fields is as follows: in the field of measuring instruments, about 4 bil...

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Problems solved by technology

[0008] The purpose of the invention is to: aim at the isothermal molding equipment for hot-molding precision aspheric glass lenses at home and abroad, which needs to be in the same position of the molding room, and strictly complete the heating, pressing, annealing, and cooling processes experienced in a working cycle in sequence , leading to long molding cycle, low molding efficiency and production efficiency, and at the same time, the working temperature range of the mold varies greatly, its service life is short, the utilization rate is low, and the workpiece manufacturing cost is high. To provide a non-isothermal molding of high-efficiency ultra-precision glass lens Equipment and molding method

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