Diamond super precision lathe free curved surface processing path generation method
A path generation and curved surface processing technology, which is applied in the field of complex parts manufacturing and ultra-precision machining, can solve the problems of not providing pre- and post-processing algorithms or modules for free-form surfaces, and achieve the effect of ultra-precision machining
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[0024] Ordinary lathes have 2 degrees of freedom. In addition to rotary motion, the spindle can also move along the X-axis, and the turning tool can move along the Z-axis. When the encoding device is installed on the rotating spindle, its rotation angle can be controlled or fed back. Therefore, the lathe has a third degree of freedom, that is, the C axis. Let the coordinates of any point on the machine tool be expressed as Where ρ is the X-axis coordinate, is the C-axis coordinate, and z is the Z-axis coordinate; as long as the rotation angle of the spindle and the feed rate and depth of cut of the turning tool are coordinated and controlled, complex free-form surfaces can be processed. figure 1 is the top view of the diamond turning tool model, and the radius of the tool nose arc on the cutting surface is r 0 . The coordinates of the arc center of the tool nose can control the positioning during the machining process, but the actual machining is performed on the cutting ...
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