What are the advantages of using five-axis turning and milling lathes？
1. It can process continuous and smooth free-form surfaces that cannot be processed by ordinary three-axis CNC machine tools or that are difficult to complete in one clamping.
Blades of aero-engines and steam turbines, propellers for ships, and many shells and molds with special curved surfaces and complex cavities, holes, etc., such as machining with ordinary three-axis CNC machine tools, because their tools are relative to the workpiece The pose angle cannot be changed during the machining process. When machining some complex free-form surfaces, there may be interference or under machining (ie not machining). When machining with a five-axis linkage machine tool, since the pose angle of the tool/workpiece can be adjusted at any time during the machining process, the interference of the tool and workpiece can be avoided and the entire machining can be completed in one clamping;
2. It can improve the machining accuracy, quality and efficiency of free-form surfaces in space.
When three-axis machine tools are used to process complex surfaces, ball-end milling cutters are often used. Ball-end milling cutters are formed by point contact, resulting in low cutting efficiency. Moreover, the position and attitude angle of the tool/workpiece cannot be adjusted during the machining process. Generally, it is difficult to ensure that the use of balls The best cutting point on the end mill (that is, the highest point of the ball nose upper line speed) is cut, and there may be a situation where the cutting point falls on the rotation center line where the ball nose knife line speed is equal to zero. At this time, not only is the cutting efficiency extremely low, the quality of the machined surface is seriously deteriorated, but also manual repair is often required, so the accuracy may be lost.
Structural features of five-axis processing machine:
The biggest difference between a five-axis machine tool and a general machine tool is that it has at least two rotary coordinate axes in addition to the three linear coordinate axes of a normal machine tool, and it can process five-axis simultaneous processing.
The difference between five-axis machining machines, in addition to vertical and horizontal, mainly lies in the structural type of five-axis motion and the distribution (configuration) of the five-axis motion. Generally speaking, a five-axis machine tool has three types of structures and three kinds of kinematic configurations, and the combination of the two can obtain nine possible five-axis machine tool structure types.
