What are the shortcomings of the electrical control system of CNC milling machine?
What is the cause of the bump?
From the type of components used in CNC milling machine, the shortcomings of electrical control system are usually divided into weak current shortcomings and strong electricity shortcomings.
The weak current part refers to the control part in the control system which is centered on electronic components and integrated circuits.
The weak current part of CNC machine tool includes CNC, PLC, MDI/CRT, servo drive unit, output unit and so on.
The shortcomings of weak electricity include hardware shortcomings and software shortcomings, hardware shortcomings refer to the above-mentioned parts of integrated circuit chips, discrete electronic components, connection plug-ins, external connection components and other shortcomings.
Software shortcomings refer to the normal operation of the hardware germanium, data loss and other shortcomings, the common are processing program errors, system programs and parameters change or loss, computer calculation errors and so on.
Strong electric part refers to the main circuit in the control system or the relay, contactor, switch, fuse, power transformer, motor, electromagnet, stroke switch and other electrical components in the control system and the control circuit.
Of course, the disadvantage of this part is that it is easy to repair and diagnose, but because it is in the working state of high voltage and high current, the probability of defect is higher than that of weak current.
The repairman must pay full attention to it.
The cause of the collision of the CNC lathe.
CNC lathe conflict has great damage to machine tool accuracy, and has different effects on different types of machine tools. Generally, it has a great impact on machine tools with weak rigidity, such as horizontal lathes, machine tool conflicts have a fatal impact on machine tool accuracy.
Therefore, for high-precision CNC lathes, collisions must be eradicated.
As long as the operator carefully grasps certain anti-collision methods, the collision can be prevented.
The main reasons for the collision of CNC lathe are as follows:
1. The diameter and length of the tool are incorrectly entered.
2. Input error of workpiece size and other related dimensions and initial positioning error of workpiece.
3. The workpiece coordinate system of the CNC lathe is set wrong, or the zero point of the machine tool is reset and changes during the machining process, and the machine tool conflict often occurs in the process of the rapid movement of the machine tool, and the harm of the conflict is the greatest and must be prevented.
