How to program the turning milling compound machining due to the large concave convex surface of the workpiece
The large concave convex area of the turning milling compound machining surface is prone to interference between the tool and the workpiece, causing serious consequences. Positioning 3+2 machining method can overcome the shortcomings of 3-axis CNC machining of complex surfaces. Turning milling compound positioning 3+2 processing refers to turning B and C axes to a certain angle and locking for processing. When the processing of one area is completed, adjust the B axis and C axis according to the normal vector direction of the other processing area, and continue the processing angle.
Its essence is to change five axis linkage machining into fixed angle machining in a certain direction. The tool axis direction will not change during machining. Because it can realize one-time machining, 3+2 positioning machining has obvious advantages in efficiency and quality compared with 3-axis CNC machining. Turning milling compound multi axis milling finishing solution. The multi axis linkage machining method is used to finish the machining of multiple complex fragment surfaces of the cylinder part of complex rotating parts, and the machining geometry, driving mode and related parameters are selected.
In actual processing, the characteristics of the machine tool should be fully used to effectively control the change of the tool swing angle, so that the displacement and swing angle can be well matched to prevent over cutting. In order to reduce the sharpness of the tool swing angle at the corner of the part, the transition tool position shall be appropriately increased when machining the corner of the part. This is also conducive to the smooth operation of the machine tool, avoiding over cutting, and improving the surface quality of the Dongguan turning milling composite machining parts.