Paper Keywords: CNC technology; CNC machine tools; Fault; maintain
Abstract: Numerical control technology is a technology to control mechanical movement and working process with digital confidence. The application of numerical control technology not only brought revolutionary changes to the traditional manufacturing industry, but also made the manufacturing industry a symbol of industrialization.
Numerical control machine tool is a high-tech product integrating high-precision, cutting-edge technology, machinery, electricity, light and liquid. It has many advantages, such as high machining accuracy, stable and reliable machining quality, high production efficiency, strong adaptability and good flexibility, and is widely welcomed in various industries, and its use is paid more and more attention. However, because it is an integrated equipment controlled by strong and weak electricity and digital technology, once some parts of the system fail, it will inevitably stop the machine tool and affect production. Therefore, how to maintain the equipment correctly and repair it in time when the equipment fails is the key to ensure normal production.
1. Maintenance of CNC machine tools
For CNC machine tools, reasonable daily maintenance measures can effectively prevent and reduce the failure probability of CNC machine tools.
First of all, according to the specific performance and processing object of each machine tool, it is very important to formulate operating rules and establish working, fault and maintenance files. Including the maintenance content and maintenance cycle of functional equipment and components.
Secondly, the air in the general workshop contains pollutants such as oil mist, dust and even metal powder. Once it falls on the printed circuit or electronic device in the numerical control system, it is easy to cause the insulation resistance between components to drop, and even damage the components and printed circuit. Therefore, unless necessary adjustment and maintenance are needed, it is generally not allowed to open the cupboard door casually, and it is not allowed to open the cupboard door during use.
In addition, the grid voltage of the numerical control system should be monitored at any time. Once it is found that it exceeds the normal working voltage, the system will not work normally, and even the electronic components inside the CNC system will be damaged. Therefore, in the absence of automatic detection and protection of equipment, the distribution system should be monitored by special personnel to improve the stable operation of the distribution system as much as possible.
Of course, it is very important that CNC machine tools are driven by DC feed servo and DC spindle servo. Care should be taken to remove the brush from the DC motor to avoid damaging the commutation performance and the whole motor due to chemical corrosion. This is a very serious and easy-to-cause failure. Excerpt from worry-free paper network