Tool measurement and measuring instrument technology needs further improvement

Introduction: Although China's precision measuring instrument manufacturing industry has achieved certain development this year, there are still many problems. There is a gap between measurement technology and instrumentation.

First, the measurement technology and instruments of CNC machine tools, especially the laser measurement system as the representative of high-precision dynamic and static CNC machine tool precision and performance testing technology and precision compensation technology. High-performance laser measurement system is mainly used for precision testing and evaluation of high-end numerical control equipment such as CNC machine tools and coordinate measuring machines. The domestic laser interferometry system developed and produced in China by the Chengdu Tool Research Institute has a certain gap compared with the advanced level in the world.

Second, CNC tool measurement technology and instruments, in particular, high-precision CNC tool measurement technology, CNC tool in-machine measurement technology and CNC tool preset measurement techniques and instruments. Taking high-precision, automatic tool presetting measuring instrument series as an example, our country started late in development. In 2005, at Beijing Machine Tool Exhibition, there were only Harbin and Tianjin Tianmen debuted. The digital cutting tool with surface array CCD was exhibited. Pre-measurement meter prototype. In addition, domestic Tianjin Tianmen, Cheng Quan, etc. are all under development, but there is still a certain gap in technical level and quality.

3. On-machine/on-line digital measurement technologies and instruments for production sites, especially on-machine measurement and feedback correction compensation technologies and devices for complex precision contour machining, such as CNC gear grinding machine-in-service measurement technologies and devices, turbine blades Online measurement techniques and devices.

Some experts in the industry have rethought pointed out that in the past, the professional research institutes in the machinery industry all went through the same business, which led to a reduction in the investment in technology development and the loss of technical personnel. This has adversely affected the development of the precision measurement instrument manufacturing industry. In this regard, Xie Huarong believes that relevant state departments should take measures as soon as possible to adopt policy tilts, increase investment in the “National Precision Tools Engineering and Technology Development Center”, and selectively, appropriately restore or form a limited number of non-profitable countries. The funded professional research institute focuses on the research and development of the national economy, national defense and military technology, and guides and promotes the improvement of the industry's technological level.