Instrument lathes require very high machining accuracy, surface finish and positioning accuracy, and need high-precision control system, tool rest, spindle box and other key components, as well as high-precision tools and machining technology, so their manufacturing costs are also high, and they are generally only suitable for high-precision, high-performance and small-batch production and processing. It is an indispensable precision machining equipment in various fields such as scientific and technological manufacturing, aerospace instruments, optical instruments and electronic instruments.