It is believed that relatively few people know the techniques, because many times, what we see are basically what to pay attention to when processing, and what are the common problems, these are some comparisons Superficial knowledge points. In fact, every part of the equipment is very important when processing, and it will directly affect the quality of the product. Then let's find out what should be paid attention to when choosing a CNC system?
First of all, the preliminary selection should be based on the types of motors and power ranges that can be matched. In particular, pay attention to whether the CNC machine tool plan includes torque motors, linear motors, and electric spindles as synchronous electric spindles or asynchronous electric spindles, the rated current requirements and overload current requirements of the above-mentioned motors, and the spindle speed requirements.
Five-axis machine tools need to determine whether five-axis linkage or only five-sided machining is required, and the corresponding selection of the CNC system function is different. For example, for five-sided box processing, RTCP is usually not needed, and the choice is relatively large. At the same time, the five-axis function may involve the CNC system supplier in the export license, after-sales service, etc. must also be carefully considered.
Most of the CNC machine tools introduced by mechanical processing plants, especially large and heavy CNC machines, have full closed-loop and dual-drive requirements. In the full closed-loop control scheme, it is necessary to choose between distance-encoded gratings and ordinary incremental gratings. At the same time, the numerical control system must also support corresponding feedback signal access.
The networked support of the CNC system has become a necessary condition for the integration of production systems. For CNC machine tools to be incorporated into a highly automated production system, it must be clear that the CNC system has a corresponding access solution, including low-level direct access to the PLC input and output points To the built-in OPC server of the CNC system, open the internal data of the CNC system to users in accordance with the OPC standard. In addition, for the production system, automated online workpiece detection and tool detection are also functions that must be supported.
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