1, CNC machining technology is according to the original conditions such as part drawings and process requirements, the preparation of parts CNC machining program, and input to the CNC system of the CNC machine tool, in order to control the relative motion of the tool and the workpiece in the CNC machine tool, so as to complete the processing of parts.
2, the main content of CNC machining technology:
The first step: understand the technical requirements of the drawing, such as dimensional accuracy, form and position tolerance, surface roughness, workpiece material, hardness,
Machining performance and number of workpieces;
The second step: according to the requirements of the parts drawings for process analysis, including the parts of the structure of the process analysis, material and design accuracy rationality analysis, approximate process steps;
The third step: According to the process analysis to develop all the process information needed for processing - such as: processing process route, process requirements, tool movement track, displacement, cutting amount (spindle speed, feed, cutting depth) and auxiliary functions (tool change, spindle forward or reverse, cutting fluid on or off), and fill in the processing process card and process card;
The fourth step: according to the parts drawing and the process content, and then according to the instruction code and program format specified by the numerical control system used for numerical control programming;
The fifth step: the written program through the transmission interface, input into the numerical control device of the CNC machine tool. After adjusting the machine tool and calling the program, the parts that meet the requirements of the drawing can be machined.