What are the principles for determining the process plan of a vertical machining center

What are the principles for determining the process plan of a vertical machining center

Machining center (CNC in short, Computerized Numerical Control in full): It is a highly automated multi-functional CNC machine tool with tool magazine and Automatic tool changer. Many people in Hong Kong, Taiwan, and Guangdong also call it a computer gong.

The positioning accuracy of a vertical machining center refers to the azimuth accuracy that can be achieved by the movement of each coordinate axis of the machine tool under the control of the device. The positioning accuracy can also be understood as the motion accuracy of the machine tool. Generally, machine tools are manually fed, and the positioning accuracy is primarily determined by reading errors, while the movement of the machine tool is completed by numerical program instructions. Therefore, the positioning accuracy is determined by system and mechanical transmission errors. The movement of each moving component of the machine tool is completed under the control of the device, and the accuracy that each moving component can achieve under the control of program instructions directly reflects the accuracy that the processed parts can achieve. Therefore, positioning accuracy is a very important detection content.

The vertical machining center adopts three axes and two linkage, which can generally achieve three axes and three linkage. Some can be controlled with five or six axes. The height of the vertical machining center column is limited, and the processing range for box type workpieces needs to be reduced, which is a disadvantage. But the workpiece clamping and positioning are convenient; The movement trajectory of the cutting tool is easy to observe, the debugging program is convenient for inspection and measurement, and problems can be detected in a timely manner for shutdown or modification; The cooling condition is easy to establish, and the Cutting fluid can directly reach the tool and the machining surface; The three coordinate axes are in line with the Cartesian coordinate system, which feels intuitive and consistent with the perspective of the pattern. Chip removal and falling are easy to avoid scratching the processed surface. Compared with the corresponding horizontal machining center, it has a simple structure, a smaller footprint, and a lower price.