First, the development of optical cold processing

Cold processing of optical components in China was rare in the period of the Republic of China. By 1950s, optical processing technology was introduced almost from the Soviet Union and the socialist countries in East Germany. The optical cold processing is used for coarse grinding, fine grinding and classical polishing. At the same time, the processing efficiency is low, and the technical requirements of the operator are high. Each operator has to pass the technical post training for many years to get the job. Better skilled workers can finish the whole line from processing blank to polishing. At this time optical cold processing mainly relies on the skills and experience of technical workers to process parts, and the role of process design is not very important in this period. There was no strict technical standards, usually only in the processing requirements given in the process of size, surface accuracy and appearance requirements, and the processing parameters can be adjusted to not be prescribed by the operator according to each person's personal experience of self - adjustment process, as long as the production of parts that meet requirements of the drawings can be. Usually, every enterprise has a surplus of labor, and it is much less concerned about the efficiency of production than the demand for political ideas.

With the introduction of the spherical milling machine and the plane rough mill, the labor strength of the rough mill operator is relieved, and the processing efficiency of the rough mill is greatly improved. The process requirements have also been improved, but due to the low precision of the equipment, the demand for the post process has not changed, and the role of the process standard has not changed obviously. After the quasi high speed polishing ball, optical cold processing production efficiency increase rapidly, the workers clearer division of labor, the standard effect is obviously improved. The role of the craftsmen plays a decisive role in the production process. Operation standardization becomes the main content of the daily work of the enterprise. The "handicraft" of the old worker has become a supplementary role from the past domination. "According to the standard operation", "according to standard operation", "according to the standard production" and other slogans, become the basic of every modern enterprise production. The craft method, process route and process standard formulated by the technician play an important role in the production of the enterprise.

Two. The role of window processing technology

Process documents are the main technical documents that guide the processing of optical parts. Reasonable process rules are based on the correct process principles and practices, and are the crystallization of science and technology and practical experience. Therefore, it is a technical guarantee for obtaining qualified products, and all production and management personnel must strictly abide by it. For a large number of large production plants, due to the strict production organization, meticulous division of labor, and more detailed technical regulations, can the organization and command production. For a factory produced in a single small batch, the process regulations can be simpler. But no matter the scale of production, there must be process regulations, otherwise production scheduling, technology preparation, key technology research and equipment configuration can not be arranged, and production will be in chaos. At the same time, process regulations are also the basis for processing production problems, such as product quality problems, and the responsibility of each production unit can be defined according to the process regulations. The production in accordance with the process regulations is easy to ensure the quality of the products, to obtain higher production efficiency and economic benefit.

The process is gradually processed according to the steps of the process regulations. It is processed and inspected according to the requirements of the specified size. The production level and technological level of an enterprise can be reflected from the condition of the technical regulations. It is a measure of the level of the enterprise's technical level. Reasonable process rules can ensure the quality and efficiency of production, and also reflect the manufacturing level of the products, the state of the production equipment and the operation skills of the operators. However, the process regulation is not fixed. It is a summary of the practice of workers and technicians in the production process. It can be modified according to the actual production situation, making it continuous improvement and improvement.

At present, optical parts processing has entered the era of high speed machining. The output of optical components is large, and a large number of operators are needed. Most of the operators are from rural youth. They are usually unskilled, with a low level of culture and a lot of liquidity. If it is impossible to carry out long-term normative training, only brief basic training will be laid off. In order to deal with this situation, we usually decompose the process into a series of simple processing steps, so that each operator can only do one of them, and only if we strictly follow the requirements of specification. As long as the operator action is accurate, it was cooked, so as to solve the problem of staff training cycle. The adjustment of the machine and equipment for each process in the process of processing is adjusted by a special person. Thus, the shortage of technical workers was solved, and the production was carried out smoothly.

The formulation of processing technology has become very important. The process standard formulated by the technician directly affects the quality of the product. The technician is the maker of the processing technology, the equipment adjusts and the operators are the executors of the processing standards. After making process standard, the technician adjusts the state of the equipment by the equipment adjusts, and then operates by the operator.

In the whole process of processing, the process standards between the various processes are interrelated and must not be considered in isolation. In some enterprises, process design is carried out separately according to process and work steps, which can compensate for the defect that the technician only grasps the process technology and has no comprehensive understanding of the whole process. But in this way, it will inevitably lead to the lack of connection between the process design and the process design between the various processes and the work steps.