Investigation on shaping machining method for deep hole keyway based on on-line symmetry detection and compensation

摘要: Machining of deep hole keyway often suffers from low processing accuracy, symmetry degree between and the reference plane is difficult to control. In order enhance quality, a mathematical model space error was established based on projection, orthogonal combination linear fitting methods so as study rotatable shift-able objects. The separated into included angle displacement straight line benchmark line. Through rotation location measurement along with quantitative translation, compensation realized. On basis proposed methods, Double combined manual self-centering fixture (DCMSF) designed realize radial axial for effective clamping keyway, built-in slot derived out make it detectable controllable. Meanwhile, an Online multi-degree freedom detection device (OMFSDD) corresponding Numerical control (NC) programs were also automatic error. Subsequently, mass production high symmetric realized by means NC gear shaper servo rotating shaft bi-directional cutter back-off amount translation compensation, fixed processing. Deep experiments indicate that method can steadily keep within 0.03 mm. Thus, rationality accuracy validated which provides novel approach precision