Economical CNC lathes have been developed on the basis of ordinary lathes, but their degree of automation has been greatly improved. The automatic control system of the economical CNC lathe is mainly composed of a single-chip microcomputer. Through the control program, the vertical and horizontal feed devices and tool change devices of the machine tool are controlled, and the processing of the parts is automatically completed.
Economical CNC lathes are also handled differently. The end of the program operation of the economical CNC lathe, the tool returns less than zero, the main reason for this phenomenon is mainly caused by the control system failure. The tool requires low-speed operation during feed or during processing. At this time, the stepper motor runs at a low speed and is powered by a low-voltage power supply. When the program returns to zero, it is required to quickly retract. At this time, the stepper motor is required to run at a high speed and high-voltage drive power is used. Increase the output torque to ensure normal zero return. There is a switch transistor that controls the output of the high voltage drive power supply. When the switch transistor is damaged, the high voltage power supply will not turn on when the switch transistor is damaged. The output torque of the stepping motor is not enough, causing a zero return loss, resulting in the tool not returning to the original point. A failure to replace the switch transistor can be eliminated.
Economical CNC lathes are also handled differently. The end of the program operation of the economical CNC lathe, the tool returns less than zero, the main reason for this phenomenon is mainly caused by the control system failure. The tool requires low-speed operation during feed or during processing. At this time, the stepper motor runs at a low speed and is powered by a low-voltage power supply. When the program returns to zero, it is required to quickly retract. At this time, the stepper motor is required to run at a high speed and high-voltage drive power is used. Increase the output torque to ensure normal zero return. There is a switch transistor that controls the output of the high voltage drive power supply. When the switch transistor is damaged, the high voltage power supply will not turn on when the switch transistor is damaged. The output torque of the stepping motor is not enough, causing a zero return loss, resulting in the tool not returning to the original point. A failure to replace the switch transistor can be eliminated.
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