How to transform the CNC lathe parts?

u200bCNC lathe parts Before the CNC transformation of old machine tools, the price of CNC lathe parts with the same performance in the market should be investigated, and the price of the two should be compared while the delivery time should be considered. For small CNC lathes and milling machines that are not expensive , It is recommended to update and purchase new machine tools instead of old machine tools, because the two costs are similar and save less money. , It is the better choice for the more expensive machine tool to carry out CNC transformation, which can not only save more money, but also shorten the purchase time. For example, a table with a size of 2000×1800mm, three-axis linkage, and a horizontal type with 60 tools The machining center comparison is as follows. u200b2. Investigate the status quo of the CNC lathes that need to be transformed. Not all old machine tools are suitable for CNC transformation. We must have a comprehensive understanding of the machine tools that need to be transformed, and make correct judgments on the mechanical system of the machine tool for surveying and mapping. Mechanical performance is the basic condition for the successful CNC transformation of machine tools. Otherwise, even the best CNC system will not be able to exert its due performance. Therefore, the mechanical accuracy of the machine tool should be tested before the CNC transformation of the machine tool, and the problems found can be repaired during the implementation of the machine tool transformation. If there are many problems in the mechanical system of the machine tool, such as defects in the mechanical structure design and manufacture of the old machine tool, the CNC transformation of the machine tool will not be of much significance. The electrical system of the old machine tool is the key work of machine tool transformation due to the aging and failure of components. It is necessary to understand the manufacturer model of the old machine tool numerical control system, the number of control axes, the drive configuration of the spindle and feed axis, the power of the spindle motor, and the power of the feed axis motor. Torque etc. Check whether the random technical information is complete and complete. Complete technical information can shorten the technical preparation time for machine tool transformation. Among them, electrical schematic diagrams, PLC programs, machine tool maintenance manuals, hydraulic, pneumatic, lubrication schematic diagrams, mechanical assembly diagrams, etc., must be carefully studied. Special attention should be paid to the fact that the content provided in the technical data may be wrong and inconsistent with the actual machine tool. This is because some machine tool manufacturers provide general drawings of series models, and the electrical hardware changes of individual machine tools are not marked in the electrical data. This requires us to compare the actual machine tools and carefully check to avoid mistakes. Third, the determination of the numerical control transformation plan of the machine tool is based on the surveying and mapping of the machine tool, and the overall machine tool transformation plan is determined according to the requirements of the user. 1. The transformation plan of the numerical control system The transformation of the machine tool is first of all the transformation of the numerical control system. According to the existing control level of the machine tool, the workpiece processing requirements, and the capital status of the enterprise, the corresponding low, medium and high-end numerical control systems are selected. When choosing a numerical control system, you need to consider the products of mainstream manufacturers. For example, foreign numerical control systems can choose FANUC, Siemens systems, etc., and domestic numerical control systems can choose Huazhong and Kanedi systems. It should also be as consistent as possible with the CNC system selection of other CNC machine tools for machine tool users. The advantage of this is that it is convenient for maintenance personnel to maintain the machine tool; the more centralized CNC system also facilitates the reduction of the types of spare parts. The selection of the CNC system is based on the principle of practicality, and there is no need to waste money in pursuit of a higher level. 2. The transformation plan of the spindle servo system. The old CNC machine tool spindle control generally adopts DC servo or AC analog servo drive system. According to the needs of use, the original drive device and spindle motor can be used instead of the AC digital servo drive system or the frequency converter. control. The original drive system can also be retained, such as a good AC analog servo drive system; the DC servo drive system can retain a good DC motor and use a new DC servo control device to replace the old drive device. 3. The reformation plan of the feed servo system is similar to the reformation plan of the spindle servo system. According to the needs of use, the original drive device and motor can be replaced by an AC digital servo drive system; the original drive system can also be retained, such as in good condition. AC analog servo drive system. 4. The modification plan of the closed-loop control detection device. For the induction synchronizer/ruler of the old machine tool, it can be replaced by a circular grating and a grating ruler. When selecting the model, pay attention to the consistency of the interface signal between the detection element and the system, square wave signal or voltage signal . If you retain the old current signal grating ruler, you need to install a current signal to voltage signal conversion device to match the new system, because most of the new systems do not support current signals.