3 Renishaw CNC machine "health" maintenance expert
The ML10 laser interferometer is well known. The wavelength of the laser is extremely stable. Therefore, the laser interferometer is the only recognized instrument for the accuracy verification of CNC machine tools in international standards. It can measure machine tools of various sizes and even machine tools up to several tens of meters, diagnose and measure various geometric errors. Its accuracy is at least 10 times higher than conventional technology. The laser interferometer automatically collects data, saving time and avoiding operator error. It is based on PC, avoids manual calculations, and can be statistically analyzed immediately according to international standards and China's national standards.
Renishaw's ML10 laser interferometer is currently sold worldwide, and its latest upgrade, the ML10 Gold, will be launched at the upcoming CIMT 2001 7th China International Machine Tool Show. ML10 Gold has been greatly improved and improved in system materials, functional configuration and application fields, and is superior to similar products on the market. For example, the system accuracy is improved from ±1.1ppm to ±0.7ppm: the laser frequency stabilization accuracy is improved from ±0.1ppm to ±0.05ppm: using a broadband power supply suitable for China's national conditions, ie operating voltage 85~265V: Windows95/98/NT The Laser10 software is simple to use and feature rich.
The ML10 laser interferometer provides a high-precision standard for machine tool verification. It has high precision and large measuring range (linear measuring length 40m, optional 80m), fast measuring speed (60m/min) and high resolution (0.001μm). Good portability. Moreover, the Renishaw laser interferometer has automatic linear error compensation function, which can easily restore the accuracy of the machine tool, and is more popular with users! The geometric precision detection uses ML10 laser interferometer, straightness optical mirror, vertical optical mirror, flatness optical mirror, Angle mirror components, etc., can detect accuracy such as straightness, verticality, flatness, pitch and yaw, parallelism. In particular, Renishaw's linear optics have a unique patented design that greatly improves the complexity of dimming.
Detection of positioning accuracy and its automatic compensation The Renishaw ML10 laser interferometer not only automatically measures machine tool errors, but also automatically compensates for linear displacement errors via the RS232 interface. The above process saves a lot of time compared to the usual compensation method, and avoids operator error caused by manual calculation and manual data entry, and maximizes the number of compensation points on the measured axis to achieve the best accuracy of the machine.
Currently, the available automatic compensation software is Fanuc, Siemens 800 series, NUM, Mazak, Mitsubishi, Cincinnati Acra-matic, Heidenhain, Bosch, Allen-Bradley and the like.
CNC machine tool dynamic performance detection using RENISHAW dynamic characteristic measurement and evaluation software, laser interferometer can be used for machine vibration test and analysis (FFT), as well as the dynamic characteristics of the ball screw, the response characteristics of the servo drive system and the dynamic characteristics of the guide rail (low speed crawling) ) analysis.
QC10 ball bar QC10 ball bar is a fast (10 ~ 15min), convenient and economical detection of CNC machine tool two-axis linkage performance of the instrument, can be used to replace the work accuracy of the NAS test piece cutting. Although the comprehensive testing of a CNC machine tool is more complicated, Renishaw's new Windows 95/98/NT-based full Chinese interface ballbar software makes machine testing and error diagnosis very easy. Easy to understand.
Using the error measurement and diagnostic software called Ballbar 5, the service technician can determine the interpolation and positioning performance of the machine within a few minutes and obtain a list of issues to be repaired accordingly. The software gives analysis results according to various standard requirements, such as ISO230-4, ASME B5.54 and ASME B5.57. At the same time, the software can automatically separate faults based on the measured data, and compare them according to the proportion (percentage) of each error. Since the results can be given as a percentage, depending on the relative importance of the error, the inspector can immediately know which part of the hardware or control element of the machine is most in need of repair.
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