What is the main function of the frequency converter on the machine tools?
CNC machine tool spindle drive system is also called the main transmission system, is to complete the main movement of the power unit part. The main shaft drive system is changed into the cutting moment and cutting speed of the tool or workpiece installed on the main shaft by the transmission mechanism, and the ideal parts are matched with the feed movement. It is one of the forming movement of parts processing, and its accuracy has a great influence on the machining accuracy of parts. Machine tool spindle drive and the drive is different, the machine spindle motion is usually rotation, unlike feed drive need wire rod or other linear motion device for reciprocating motion, NC cutter and workpiece by rotating the spindle and feed the cutting motion.
Where is the difference between soft starter and converter?
The following example to three inverter in the application of the note for example!CNC machine tool is a kind of flexible and efficient automatic machine tool. It can solve the complicated, precise and small batch processing problem. It is very important to improve the machining accuracy and efficiency of CNC machine tools by rationally controlling the spindle of NC machine tools.
According to the working characteristics of machine tool spindle drive structure, most of the early machine adopts three-phase asynchronous motor with multi-stage gearbox, with the continuous development of technology, machine tool has been greatly improved, so as to put forward new requirements on the spindle system, and because use varies in CNC machine tools, CNC lathe, CNC drilling accounted for 42%. Boring and milling machine CNC grinding machine, punching machine accounted for 33%, accounting for 23%, accounting for 2% of the other, in order to meet the needs of the former two types of CNC machine tools a wide range of large, proposed the following requirements of the spindle drive: main drive motor power range should be 2.2KW~250KW; to have a wide range of stepless speed regulation, such as constant torque speed and 1:10 constant power speed in the range of 1:100~1000; the main transmission requirements are capable of driving the four quadrant; in order to meet the requirements of thread turning, spindle can realize synchronization control and feed.
