How do CNC machining process components?

The processing of CNC machining technology is basically the same as ordinary machining, but it has its own characteristics. So, when designing the CNC machining process for parts, not only should it follow the good flexibility and high automation of CNC machining, but it is also particularly suitable for machining curved and curved parts with complex contour shapes, as well as complex box and prism parts with a large number of holes and grooves. Under the conditions of multiple varieties and small batch production, using CNC machine tools can achieve high economic benefits.

Determination of tool alignment and tool change points for CNC machining centers. The tool set point is the starting point for the tool to run relative to the workpiece in CNC machining. Since the program is also executed from this point, the tool set point is also known as the program starting point or tool starting point. When programming, the selection of tool point position should be considered first.

When the machining accuracy is not high, certain surfaces on the workpiece or fixture can be directly used as tool surfaces; When the machining accuracy requirement is high, the tool set point should be selected as much as possible based on the design or process of the part. For example, for parts located by holes, it is more suitable to use the axis of the hole as the tool set point.

The tool alignment point should have a certain coordinate relationship with the positioning reference of the workpiece to ensure the coordinate relationship of the machine tool. The selection of tool set points should facilitate the calculation of coordinate values and tool settings.

When aligning the tool, align the tool alignment point with the tool position. The so-called tool position, for flat end milling cutters, refers to the intersection point between the tool axis and the tool bottom; For ball end milling cutters, it refers to the center of the ball head part; Turning tool refers to the tip of the tool; For drill bits, it refers to drill bits; A wire cutting machine tool refers to the focal point between the axis of the wire electrode and the surface of the part.