Summary:

The popularity of medium wire cutting is not only due to its simple operation, but also because the processing accuracy of medium wire cutting is very high, which is the key for major manufacturers with high requirements to choose medium wire cutting.

The accuracy of intermediate wire feeding first depends on the control system of the wire feeding. Different intermediate wire feeding control systems have different accuracy, and intermediate wire feeding can be divided into open-loop control and fully closed-loop control.

Open loop control:

1. What is open-loop control? Refers to the control of the system that only controls the output without considering the consequences, that is, the control of the regulating system that does not accept feedback. Also known as a feedback free control system. The online cutting machine is composed of a stepper motor and a stepper motor drive circuit. The numerical control device sends pulse commands to the stepper motor drive circuit through calculation based on input instructions, thereby driving the worktable to move a certain distance.

2. The benefits of open-loop control for intermediate wire: This servo system is relatively simple, stable in operation, and easy to master and use.

3. The disadvantages of the open-loop control of the intermediate wire: the improvement of accuracy and speed is limited, and the errors generated by the mechanical transmission chain through stepper motors, gear transmission, ball screws, worktable movement, and transmission ultimately affect the machining accuracy. So, it is applied to ordinary precision levels Economical CNC machine tools that rely on their own mechanical transmission accuracy, such as CNC wire cutting machines.

Fully closed-loop control:

1. What is fully closed-loop control: an automatic control system consisting of a signal forward path and a feedback path to form a closed loop, also known as a feedback control system. In CNC machine tools, it consists of servo motors, comparison circuits, servo amplification circuits, speed detectors, and position detectors installed on the worktable.

2. The benefits of fully closed-loop control of the middle wire: This system automatically detects the actual displacement of the worktable and compares it with the command value. The difference is used to correct the control. As long as the controlled quantity deviates from the specified value, corresponding adjustments will be made to eliminate the deviation, ultimately achieving relatively high machining accuracy. This system has high positioning accuracy, is complex, difficult to debug and maintain, and is relatively expensive

3. The disadvantage of fully closed-loop control for medium wire drive: The disadvantage of fully closed-loop control for medium wire drive is that it requires purchasing from reputable manufacturers, as the system is complex and requires professional technicians for debugging and maintenance. Only reputable medium wire drive manufacturers can ensure good after-sales service.