Course of treatment of numerical control milling is decided really (citing of 3 kinds of typical spare partses)

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Headline: ?  impossibles ぢ of sincere Ku commonplace is useless kowtow graceful model? citing of 3 kinds of typical spare partses) in CNC Machining, cutting tool (saying strictly is a knife dot) call treatment line relative to the athletic contrail at workpiece and direction. Namely cutting tool from to the knife the dot begins motion to rise, till end the method that machines a course, the method that includes cutting treatment and cutting tool introduce, return wait for blame cutting idle stroke. Must assure what machine a course to be machined above all certainly the dimension precision of the spare parts and exterior quality, consider numeric computation next simple, those who walk along milling of knife numerical control to machine a course is affirmatory (citing of 3 kinds of typical spare partses) in CNC Machining, cutting tool (saying strictly is a knife dot) call treatment line relative to the athletic contrail at workpiece and direction. Namely cutting tool from to the knife the dot begins motion to rise, till end the method that machines a course, the method that includes cutting treatment and cutting tool introduce, return wait for blame cutting idle stroke. Must assure what machine a course to be machined above all certainly the dimension precision of the spare parts and exterior quality, consider numeric computation next simple, course taking a knife as far as possible short, efficiency is more advanced. Citing analyses numerical control machine tool to machine the treatment line that the spare parts uses constantly below. (1) the analysis of course of outline milling treatment to successive milling outline, when machining circular arc especially, should notice those who arrange good cutting tool to be cut, cut, should avoid to have sex as far as possible place repeat treatment, can appear otherwise apparent bounds trace. If graph A place is shown, when the circle is being made outside using milling of means of circular arc interpolation, should arrange cutting tool from tangential enter circumferential milling treatment, after the treatment that make a circle ends, do not retreat a knife directly in place of point of tangency, and make cutting tool much move a paragraph of distance, had better exit along tangent direction, when lest cancel cutting tool,be being compensated, cutting tool and workpiece face posture collide, cause workpiece to discard as useless. When the circular arc inside milling, also should abide by from tangential the principle that cuts, arrangement is cut, cut transfer circular arc, if pursue,B place is shown. A)b) (2) the straight grain curved surface that the machines a course analysis of curved surface opens wide to border, treatment uses ball head knife to undertake constantly " cut a way all right " treatment, namely the contrail of point of tangency of cutting tool and spare parts outline is, row pitch machines precision to ask by the spare parts and decide, the engine big lamina that shows like plan institute, can introduce line of two kinds of treatment. When the treatment plan that adopts graph A, every time the edge is machined point-blank, knife dot calculation is simple, the program is little, treatment process accords with the formation of straight grain face, can assure the linearity of bus truly definitely. When the treatment plan that adopts graph B place to show, accord with data of this kind of hardware to give out circumstance, examine after facilitating treatment, the accuracy of foliaceous form is tall, but the program is more. Because the border of curved surface spare parts is opened wide, without other surface limitation, curved surface border is OK and so outspread, ball head knife should by begin to machine outside border. (3) the aperture with the taller to positional precision claimed accuracy course that aperture is treatment fastens treatment, the treatment that should note hole particularly is sequential arrangement, when arrangement is undeserved, take the backlash of edge reference axis likely, affect positional precision directly. If plan institute is shown, graph (A) is part drawing, the hole with 6 same size is machined on this spare parts, have line of two kinds of treatment. Should press (when B) plan institute shows a course to machine, as a result of 5, 6 aperture and 1, 2, 3, way of 4 opening fixed position is opposite, y direction backlash can make locate the error increases, and influence 5, the positional precision of 6 aperture and other aperture. By the graph (C) place shows a line, after machining 4 aperture, upgrade shift is apart from P dot one paragraph, fold again next come back to machine 5, 6 aperture, such direction are consistent, can avoid backlash introduce, rise 5, the positional precision of 6 aperture and other aperture. CNC Milling CNC Machining