Precision production equipment is put into use in a certain enterprise

Traditional mechanical processing methods (ordinary processing) are the same as precision and precision processing methods. With the adoption of new technologies, processes, equipment, testing techniques, and instruments, the machining accuracy is constantly improving.

The continuous improvement of machining accuracy reflects the development trend of material segmentation level from macro to micro during machining of workpieces. As time progresses, machining precision that was previously thought difficult to achieve will become relatively easy. So, ordinary machining, precision machining, and precision machining are just relative concepts? The boundaries between them constantly change over time. The typical representative of precision cutting and precision machining is diamond cutting.

Taking diamond cutting as an example. The radius of the blade edge arc has been developing in a smaller direction. Because its size directly affects the roughness of the processed surface and is directly related to the reflectivity of the optical mirror, the reflectivity requirements for instruments and equipment are becoming increasingly high. If the reflectivity of the laser gyro reflector has been proposed to reach 99.99%, it inevitably requires sharper diamond cutting tools. In order to conduct thinning tests, the goal is to achieve a chip thickness of nm, and the radius of the tool edge arc should approach 2.4nm. In order to achieve this height, the traditional structure of the diamond grinder was changed. The main shaft bearing adopts air bearings as support, and the end face runout of the grinding disc can be self corrected on the machine tool, so that its end face runout is controlled below 0.5 μ m.

In terms of cutting tools, a diamond grinding wheel is used to control the back cutting amount and feed rate. On precision grinding machines, ductile grinding, also known as nano grinding, can be performed. Even the surface of glass can achieve an optical mirror finish. From a long-term development perspective, manufacturing technology is the main direction and strategic decision for the development of various economies around the world. It is an important means of economic development and also a long-term plan for independence, prosperity, sustained and stable economic development, and technological preservation. The development of technology has also put forward higher requirements for precision machining and precision machining technology. From the lenses of astronomical telescopes to the micro nano sized components of large-scale integrated circuits with line widths and m requirements, regardless of their volume, their high dimensional accuracy tends to approach the nanometer level; The shape of the workpiece is becoming increasingly complex, and various non spherical shapes are now very typical geometric shapes. Does micro mechanical technology bring a new trend to precision manufacturing technology? Its micro level poses a new challenge to traditional manufacturing technology, promotes the improvement of various product technical performance, and presents a spiral cycle of development, directly contributing to the progress of science and technology and human civilization. The pursuit of high quality, miniaturization, high reliability, and high performance of products has enabled the rapid development of precision machining technology, which has now become an important component of modern manufacturing industry