CNC cutting technology is a major development area in advanced manufacturing technology, especially advanced cutting manufacturing technology. The five major elements of CNC cutting machine tools, CNC systems, CNC tools and fixtures, workpieces and measuring systems form the CNC machining system. This can be compared to the analogy: CNC tools and digital precision measuring instruments are two wheels for the development of CNC cutting technology. The development of CNC machining technology, especially CNC machining technology and CNC machine tools, cannot be separated from the development of CNC tools and precision measurement technology and instruments. They are interdependent, mutually reinforcing and closely related. Advanced cutting technology and CNC tools as well as advanced digital measurement technology and instruments, equipment and services promote the development of digital manufacturing technology, especially digital cutting technology. Equipment and services also promote the development of CNC machine tools and CNC manufacturing equipment.
The development of digital precision measuring instruments Digital measurement technology is one of the key technologies in digital manufacturing technology. Develop sub-micron and nano-scale high-precision measuring instruments, improve environmental adaptability, enhance robustness, and enable precision measuring equipment to enter the production site from the measuring room, integrate and integrate into processing machine tools and manufacturing systems, and form an advanced digital closed-loop manufacturing system. The development trend of today's precision measurement technology.
·New trends in digital precision measuring instruments - entering the production site, non-contact scanning measurement has been valued by the CMM as the basic leading product of precision measuring instruments, and continues to be valued and developed in the machinery manufacturing industry. It is an important trend for the development of precision measuring instruments represented by three-coordinate measuring machines to enter the workshop and serve the production site. For example, LEITZ's precision coordinate measuring machine is an example of measuring large gears in the workshop. Integrating digital measurement systems into CNC machine tools is another development trend. For example, the CNC forming gear grinding machine of Qinchuan Machine Tool Plant integrates the on-machine gear measuring system. Combined with optical/laser non-contact scanning measurement technology, it realizes the integration and integration of multi-function and multi-sensors, making the application of coordinate measurement technology more abundant and more suitable for production sites.
· Non-contact scanning measurement of large-scale automotive parts The horizontal arm coordinate measuring machine with precise and fast optical/laser non-contact scanning sensor enables fast and precise inspection of large automotive covers. The world famous CMM manufacturing plants such as ZEISS in Germany and HEXAGON Group in Sweden have been developed in this field. The PRIMA C1 series horizontal arm measuring machine of DEA company of Sweden HEXAGON Group can be equipped with various probes such as trigger type probe, continuous scanning probe, optical or laser scanning probe to adapt to different CW43L continuous servo joint probes. Measure the requirements of the environment and tasks. The ZEISS PROR Premium CMM is equipped with the EagleEye navigation system and controllable heads, which can be used to control the geometric parameters, surface and edge characteristics of the workpiece in the mass process control of the large body parts of the car body, especially the body sub-assembly. High-speed precision measurement is performed at points, gaps, and fit.
• Portable flexible articulated arm measuring machine with laser scanning measurement system enhanced US CIMCORE has introduced an articulated arm measuring machine equipped with an advanced laser scanning measurement system. The instrument is made of carbon fiber material and is light and rigid. The INFINITE series also has wireless communication. The instrument adopts PC-DMIS software and has strong measurement function. With the fittings of the pipe measuring system, it can also measure and compare various data such as length, bending and rebound of the pipe. The measuring range of the measuring instrument with a measuring range of 1.2m is 0.010mm and the spatial precision is 0.015mm. When used for reverse engineering, not only the measurement speed is fast, but also the real-time display of the measurement process and the seamless splicing of the trapping measurement data. The instrument can be used for three-coordinate measurement, three-dimensional modeling, product mapping, reverse engineering, on-site measurement, and mold design and manufacturing, including measurement, design, manufacturing, process inspection, on-line inspection and final product inspection. The FAROARM series of portable CMMs from FARO Technologies of the United States have similar specifications and performance. In 2005, Xi'an Edwards Measuring Machine Co., Ltd. also publicly demonstrated the prototype of the self-developed flexible articulated arm measuring machine.
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