The working principle of CNC machining can be summarized as the following steps:
Design 3D models of parts:
Engineers first use computer-aided design (CAD) software to create a 3D model of the part. This model contains all the geometric and dimensional information of the parts.
Writing numerical control programs:
Next, the design model is converted into numerical control code (such as G-code) using computer-aided manufacturing (CAM) software. These codes contain detailed information such as machining paths and cutting parameters, which are used to guide the machine tool in machining.
Transmission of numerical control programs:
The pre written CNC program is transmitted to the control system of the CNC machine tool through data transmission interfaces such as USB, Ethernet, etc.
Machine tool reads and interprets code:
The control system of CNC machine tool reads and interprets these numerical control codes, generates control signals, and drives various moving parts of the machine tool (such as spindle, worktable, etc.).
Machine tool processing:
Under the control of the numerical control system, the moving parts of the machine tool move along a predetermined trajectory to complete operations such as cutting, drilling, milling, etc. on the workpiece. During the machining process, the CNC system will monitor the position, cutting force, and other parameters of the tool and workpiece in real time, and make adjustments as necessary to ensure machining accuracy and quality.
Complete processing and testing:
After the machining is completed, the CNC machine will automatically stop moving and may be equipped with an online measurement and feedback system to perform real-time detection and calibration of the machined parts to ensure they meet the design requirements.
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