The choice of cutting tool of CNC machining center
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Cutting tool chooses total principle is: Installation is adjusted convenient, tigidity is good, durability and precision are tall. Below the premise that asks in contented treatment, choose shorter knife handle as far as possible, in order to raise the tigidity that cutting tool machines. When choosing cutting tool, should make the dimension of cutting tool and be gotten used to by the exterior dimension photograph of treatment workpiece. In production, the treatment of outline of cincture of week of planar spare parts, often use when establishing plane of milling of milling cutter; , when should choosing; of milling cutter of hard alloy razor blade to machine protruding stage, groove, when choosing high-speed steel to establish milling cutter; to machine semifinished product surface or rough machining aperture, can choose the; of corn milling cutter that sets hard alloy bit a few righter establish bodily form face and change the treatment of appearance of bevel angle outline, often use ball head milling cutter, annular milling cutter, cone-shaped milling cutter is mixed dish of form milling cutter. When undertaking free curved surface is machined, as a result of the cutting carrying a department of ball head cutting tool speed is 0, accordingly, to assure to machine precision, cutting row spacing is obtained commonly very can close, reason ball head is commonly used the finish machining at curved surface. And crop cutting tool machines quality and cutting efficiency respect in the surface knife of excel ball head, accordingly, below the premise that wants to be cut too in guarantee against only, no matter be the rough machining of curved surface or finish machining, answer knife of first choice crop. Additional, the durability of cutting tool and precision and impact of cutting tool price are great, must of bring to sb's attention is, below most circumstance, although the cutting tool that has chosen raised cutting tool cost, but of the treatment quality that brings from this and treatment efficiency rise, can make whole finished cost is reduced greatly. On machining center, all sorts of cutting tool are installed respectively go up in knife library, by the program the regulation undertakes the knife is mixed choosing at any time the movement that change a knife. Because this must use standard knife handle, so that make get, the standard cutting tool that the working procedure such as boring, enlarge, milling uses, the ties measure that rapid, accurate ground installs machine tool main shaft or personnel of the process designing on knife library should use knife handle on understanding machine tool, adjust method and adjust range, so that the radial of cutting tool and axial size determine when process designing. At present the machining center of our country uses TSG tool system, its knife handle has straight power (3 kinds of norms) with awl handle (4 kinds of norms) two kinds, include the knife handle of 16 kinds of different utility in all. 2.
In economy CNC Machining, because the blade of cutting tool is ground, measure and change to be moved for artificial hand more undertake, take up auxiliary time is longer, accordingly, must the permutation of reasonable arrangement cutting tool is ordinal. Should follow the following principle commonly: After ⑴ reduces ⑵ of; of cutting tool amount to place cutting tool outfit as far as possible, the commencement of cutting tool part of one's job that should complete the thick precision work of ⑶ of; of all treatment place that its can have is used, even if the ⑷ of cutting tool; of same size standards gets; ⑸ to have curved surface precision work first after mill first, undertake ⑹ of; of finish machining of 2 dimension outline is below probable condition after, what should use numerical control machine tool as far as possible is automatic the function that change a knife, wait in order to improve manufacturing efficiency. CNC Milling