In the field of automated lathes, Sanyou Machinery's automatic feeding CNC lathe achieves continuous operation of "feeding processing finished product output" with an efficient control system, greatly improving the production efficiency of small and medium batch shaft and disc workpieces. By analyzing the principle of its control system from a technical perspective, one can clearly grasp the core logic of equipment automation and precision control.
The control system of the Sanyou mechanical automatic feeding CNC lathe is based on a closed-loop collaborative architecture of "instruction center execution drive state feedback", mainly composed of the CNC system, feeding control module, spindle drive module, and detection feedback module. As the instruction center of the CNC system, it adopts industrial grade PLC and specialized CNC software, which can store multiple sets of machining programs. After the operator inputs the workpiece size and cutting parameters through the human-machine interface, the system will automatically parse them into pulse signals and synchronously send them to various execution modules.
The feeding control module is a key link in achieving automation. Its principle is to drive the feeding mechanism (such as feeding tube and clamping claw) through servo motors, and complete the "raw material grasping precise pushing positioning clamping" action according to the instructions of the CNC system. For example, for bar material processing, the system calculates the feeding amount based on the length of the workpiece. The servo motor drives the feeding claw through a ball screw to push the raw material from the silo to the spindle chuck. At the same time, the feeding accuracy is confirmed through a position sensor to avoid processing scrap caused by feeding deviation.
The spindle drive module is responsible for ensuring the stability of the cutting process. The spindle servo motor using vector control technology can dynamically adjust the speed according to machining requirements, seamlessly switching from low-speed heavy load to high-speed precision turning. The system will monitor the spindle load in real time. When the cutting resistance is too high, it will automatically reduce the feed rate to prevent tool wear or workpiece deformation, balancing machining efficiency and quality.
The detection feedback module is the core of precision control, which collects real-time data on feeding position, spindle speed, tool displacement, etc. through detection components such as grating rulers and encoders, and sends the signals back to the CNC system. The system compares the actual data with the preset parameters. If there is a deviation (such as a deviation of 0.01mm in the feeding position), it will immediately send a correction command to drive the servo motor for fine adjustment, forming a closed-loop control to ensure the consistency of the dimensional accuracy of each batch of workpieces.
In addition, the control system also incorporates intelligent protection logic. For example, when the feeding mechanism is stuck, the detection module will trigger an emergency stop signal, and the system will record the location and cause of the fault, making it easy for operators to quickly troubleshoot; When the tool wear reaches the set threshold, the system automatically prompts for replacement to avoid the production of non-conforming products. This principle design of "precise control+intelligent protection" enables the automatic feeding CNC lathe of Sanyou Machinery to adapt to continuous machining of shaft workpieces and multi process cutting of disc workpieces, demonstrating efficient and stable application advantages in fields such as hardware and automotive parts.