Recent advances in 3D geometric measuring instruments for industrial applications
The machine tool is the mother machine of the manufacturing industry. The CNC machine tool is the advanced technology of the machine tool product. Especially the high-grade CNC technology is the core technology of the modernization of the equipment manufacturing industry. It is the direct embodiment of the national industrial development level and comprehensive national strength. This exhibition brings together the world today. The latest achievements in machine tool development and advanced manufacturing technology have fully demonstrated the latest products and technologies developed by China's CNC machine tool industry in recent years. As an important part of CNC technology, measuring equipment, a number of new technologies and new products were exhibited at the exhibition, reflecting the development trend and characteristics of today's test and measurement technology.
High measurement accuracy
With the development of modern technology to high precision, the basic development of machine tools as the equipment industry should be advanced, and the measurement equipment is developed from the traditional micron and submicron precision to the nanometer precision. With the need of ultra-precision machining technology, the numerical control precision is getting higher and higher, and the precision of measuring equipment is higher. This exhibition shows a batch of nanometer-scale measuring equipment. In addition to various laser interferometers, grating measuring technology It also reaches the nanometer scale. For example, HEIDENHAIN's LIP382 ultra-precision linear encoders can measure up to 1 nm. Based on the development of measurement technology, nano-scale machine tools have become a reality. For example, the nano-scale precision micro-CNC grinding machine exhibited by Shanghai Machine Tool Plant has become a highlight of the exhibition.
High measurement speed
Modern manufacturing is carried out in large-scale, high-volume, specialized production, requiring multi-parameter, real-time online measurement, so the test instrument requires high measurement speed, light equipment and intuitive operation interface. Such as laser interferometry as an important method of precision measurement, various laser interferometry systems are moving towards light, portable and high speed measurement. The Renishaw XL-80 interferometer is compact and offers a maximum measurement speed of 4m/s and a recording rate of 50kHz for 1nm resolution. The laser tracker enables fast data acquisition and processing for improved measurement accuracy. . Various image measuring devices utilize a touch screen to easily and intuitively measure feature sizes.
3D measurement diversity
The three-dimensional measurement technology is developing in the direction of high precision, light weight and field. After 50 years of development, the CMM based on Cartesian coordinates has become more mature, faster and more powerful. This time, dozens of CMM manufacturers at home and abroad have their own characteristics. In particular, many domestic manufacturers have introduced practical and cheap CMMs, indicating that CMM has become fully practical and featured in China. The road to development. In addition to the Cartesian coordinate measuring system, the polar coordinate measuring instrument reflects its unique advantages. For example, the laser tracker produced by FARO, ROMER and other manufacturers has the convenience and flexibility of the large-scale structure of the equipment site. For small-size measurement, the joint arm measuring machine produced by FARO and ROMER has broad application prospects in the automotive industry due to its low cost, high precision and convenient operation at the site.
Intelligent measurement
The measuring equipment is further developed in the direction of intelligence and virtualization by means of computer technology. The virtualization of measuring instruments, the standardization of interfaces and the modularization of measurement software accelerate the development of measurement technology and make the application of measuring instruments more convenient, intuitive and intelligent. According to the measurement requirements and the different measurement objects, different instruments can be used to work together based on the same software platform. Different measurement software modules are used to realize the network and synergy of the Guangpu measurement instruments, and the automation level of measurement is improved. At this exhibition, some independent measurement software companies in China participated in the exhibition, which promoted the intelligence and networking of measurement equipment.
This exhibition showcases new technologies and products for today's industrial measuring equipment. But at the same time, we also see that China lacks the results of independent innovation in the manufacture of measuring instruments, especially high-precision instruments. Some high-precision measuring instruments have not been produced by relevant units in China. Through this exhibition, it has practical significance to promote the development of geometric measuring equipment in China.
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