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Nc machine tool maintenance technology
From:Taian Haishu Machinery Co.,Ltd. Updatetime:2016-1-26 10:29:56 Views:
Nc machine tools, CNC machine maintenance, nc machine tool maintenance
With the development of electronic technology and automation technology, the application of numerical control technology is more and more widely.Based on microprocessor, marked by large scale integrated circuit of the numerical control equipment, has been in mass production in our country, a large number of introduction and application, they created conditions for the development of mechanical manufacturing, and bring a lot of benefits.But at the same time, because of their advanced nature, complexity, and the characteristics of high intelligent on maintenance theory, technology and means are changed leap.
Numerical control technology not only is the premise to guarantee the normal operation of maintenance, the development of numerical control technology and perfect also played a huge role, therefore, it has become a specialized subject.
Any other numerical control equipment is a kind of process control equipment, this requires it to every moment in the real-time control is accurate.Any part of the fault and failure, will make the machine downtime, resulting in production to a halt.Such principle of complex, the structure of nc system precision device for repair is very necessary.Especially for the introduction of CNC machine tools, mostly spent hundreds of thousands to tens of millions of dollars.In many industries, these devices are at a critical jobs, if not timely maintenance and troubleshooting in the wake of a fault, can cause large economic loss.
Our existing maintenance status and level, and the overseas import equipment design and manufacturing technology level is still exists a big gap.The cause of the gap lies in: personnel quality is poorer, lack of digital test and analysis methods, several domain and domain and frequency domain comprehensive testing and analysis technology remains to be improved, and so on.
Below we from the basic structure of modern numerical control system, to explore the diagnosis and maintenance of CNC system.
The structure of the nc system and characteristics:
Various types of CNC system in the world, different forms, composition structure has its own characteristics.These structure characteristics derived from the basic requirement of initial design and engineering design train of thought.Such as position control system and the continuous path control system will have different requirements.For T and M system, also has the very big difference, the former is suitable for the processing of axially symmetrical parts, the latter is suitable for the abnormity of axisymmetrical parts processing.For different manufacturers, based on the historical development factors and the influence of complex factors varies from place to place, on the design thought may come in.Small plate structure is used in the United States, for example, Dynapath system is advantageous for the board replacement and flexible combination, Japan FANUC system tends to big plate structure, is advantageous to the reliability of the system, pushing system average without increasing failure rate.However, no matter what kind of system, the basic principle and composition are very similar.Generally the entire numerical control system is composed of three parts, namely control system, servo system and position measurement system.According to machining process control systems for interpolation operation, a control instruction to the servo drive system;Servo drive system will enlarge control instruction, servo motor drive mechanical movement as required;Position or velocity measurement system to detect mechanical movement, and feedback to the control system, to adjust control instruction.The organic combination of the three parts of the full closed loop control of CNC system.
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Taian Haishu Machinery Co., Ltd.
Address:Zhouwangzhuang Village, Shankou Town Taian City Shandong Province China
Telephone:+86-538-8606169
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