Precision Machining must have the appropriate testing technology, a processing and integration testing. For precision machining testing in three ways: off-line testing, the reign of testing and online testing. Offline detection means processing is completed, the workpiece to a laboratory to detect; in place means not detected after the completion of the workpiece on the machine tool to remove, in situ testing, if found to have any problems. Facilitate further processing; online testing is to detect in the process, in order to be able to take the initiative to control and implement dynamic error compensation Park. Error compensation is an important measure to improve the processing accuracy in manufacturing precision machine tools have reached a certain level basis. Isolate the impact error, use error compensation means to compensate for the error value. Wherein the static error compensation is based on the value of pre-side-out error in the processing carried out by hardware or software compensation, such as the drive screw machine pitch error can be compensated by modifying the ruler; dynamic error compensation is based on linear detection, in real-time compensation processing. Precision machining line detection compensation is the key technology of precision machining to achieve quality assurance. The detection technology into content among precision machining, using online measurement mode, enabling the operator to detect problems in the workpiece, and feedback to the CNC system. The online measurement technology used in precision machining, and its most direct economic benefits in that both saving man-hours and improve the measurement accuracy. And because the use of the functions of CNC machine tools, but also makes the CNC system can receive timely feedback information detection system, which can promptly and random error correction system, to change the number of machine movement, better quality assurance process, promoting the processing measuring the development of integration, to ensure the sound development of precision machining.
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