How Does Cnc Machining Process Parts?

CNC Machiining is not only suitable for large-volume parts processing, but also for small-volume parts and high-precision parts processing. CNC machining has good flexibility and automation. It is more suitable for processing curve and surface parts with complex contour shape, many holes and grooves, and complex box and prism parts with a large number of holes and grooves. Under the conditions of multi-variety and small batch production, CNC machining can obtain higher economic benefits. So how does CNC process parts? Next, introduce to everyone.

The processing of CNC machining technology is basically the same as that of ordinary machining, but it has its own characteristics. Therefore, when designing the NC machining process of Pump Parts and other parts, not only must follow the good flexibility and high automation of NC machining, but also it is especially suitable for machining curves and curved surface parts with complex contour shapes, and complex boxes with a large number of holes and grooves , Prismatic parts. Under the conditions of multi-variety and small batch production, the use of CNC machine tools can obtain higher economic benefits.

The determination of the tool setting point and tool changing point of the CNC machining center. The tool set point is the starting point for the tool to move relative to the workpiece in CNC machining. Since the program is also executed from this point, the tool setpoint is also called the program start or tool start. When programming, the choice of tool point position should be considered first

When the machining accuracy is not high, some surfaces on the workpiece or fixture can be directly used as the tool surface; when the CNC Turning machining accuracy is high, the tool setting point should be selected based on the design or process of the part as much as possible. For example, for a part positioned by a hole, it is more appropriate to use the axis of the hole as the tool setpoint.

The tool setting point should have a certain coordinate relationship with the positioning datum of the workpiece to ensure the coordinate relationship of the machine tool. The selection of the tool setting point should facilitate the calculation of coordinate values and tool setting.

When setting the tool, make the setting point coincide with the position of the tool. The so-called tool position refers to the intersection point of the tool axis and the bottom of the tool for flat end milling cutters; for ball end milling cutters, it refers to the ball center of the ball head part; for turning tools, it refers to the tool tip; for drill bits, it refers to the drill bit; Wire EDM refers to the focal point of the wire electrode axis and part surface.

Under normal circumstances, when a tool needs to be changed during CNC machining, the tool change point should be clearly defined, and the setting of the tool change point position should follow the principle of not damaging the workpiece, fixture and machine tool during tool change. Do not change props blindly, otherwise it will damage the equipment.