Current, breed of numerical control machine tool is already basic and all ready, norms is various, already had 400 according to not complete count many breed norms. Can undertake classified according to a variety of principles. But Baconian rise, common is the following face 4 kinds of methods will classify.
1, classify by craft utility
(1) machine tool of ordinary numerical control. This kind of machine tool and sort of traditional general purpose machine tool are same, the car that has numerical control, mill, boring, auger, grinder is waited a moment, and avery kind of has a lot of variety again, have in numerical control milling machine for example establish mill, lie mill, tool mill, Long Menxi. The craft possibility of this kind of machine tool and general purpose machine tool are similar, what what differ is the spare parts that it can process complex form.
(2) machine tool of numerical control machining center. This kind of machine tool rises in the development on the foundation of machine tool of ordinary numerical control. It is add on machine tool of ordinary numerical control assemble a knife library (can accommodate 10-100 many cutting tool) the numerical control machine tool that trades knife unit automatically with a kind of tape that trade knife unit automatically and makes (say multitask ordinal accuses machine tool or boring again, customarily abbreviation is machining center — Machining Center) , this makes numerical control machine tool is mixed further to automation efficient change directional development.
Is the distinction of machine tool of numerical control machining center and machine tool of ordinary numerical control: ? Device of numerical control of? of sunken have diarrhoea of witch of the Huaihe River of ぜ can control a machine tool to change automatically cutting tool, machine a face to finish mill automatically each to workpiece continuously (car) , boring, auger, the multitask foreword treatment such as bore with a reamer and tap. This kind of machine tool is given priority to with boring mill mostly, basically use treatment casing part. It and phase of general numerical control machine tool are like next advantages than providing:
① reduces number of machine tool stage, facilitating management, want a machine tool to be able to complete full treatment only to the spare parts of multitask foreword, can reduce the stocks of semi-manufactured goods;
② should hold clip only as a result of workpiece, because because install the fixed position error that cause for many times,this decreased, can rely on machine tool precision to assure to machine quality;
③ working procedure is centered, reduced auxiliary time, improved productivity;
④ installs clip to be able to complete treatment of much talk working procedure last time in a machine tool as a result of the spare parts, reduced the amount of special class clamping apparatus greatly so, shortened further production plans time.
Because the merit of machine tool of numerical control machining center is very much, welcome by the user, because this is in production of numerical control machine tool,have very important place.
Still have a kind of machining center additionally, rise in the development on lathe foundation, with the axis kind the spare parts is main treatment object. Divide outside can undertaking turning, boring, still can have place of the random on end panel and week face auger cut, milling and tap treatment. This kind of machining center also sets knife warehouse, can install 4-12 cutting tool, customarily call this kind of machine tool turning center (TC: Turning Center) .
Graph the numerical control treatment of linkage of 1 5 axes
(3) machine tool of much coordinate numerical control. Have the part of some of complex form, use the numerical control machine tool of 3 coordinate to still cannot be machined, the treatment that is like spare parts of curved surface of airscrew, plane, the treatment of synthetic motion ability that needs 3 above coordinate gives place want form. Appeared then the numerical control machine tool of much coordinate, its characteristic is number of axle of pilot of numerical control device more, machine tool structure is more complex also, its coordinate number of axle depends on normally the craft requirement that machines a spare parts. Commonly used now is 4, 5, the numerical control machine tool of 6 coordinate. Graph the 1 numerical control that is 5 axes linkage machines sketch map. At this moment, x, y, z3 of the circumgyrate of coordinate and revolving stage, cutting tool it is OK to swing at the same time linkage, in order to machine kind of spare parts such as wing.
2, the athletic contrail classification that presses numerical control machine tool
According to the contrail that can move relatively between pilot cutting tool and workpiece, can separate numerical control machine tool machine tool of numerical control of the position control that it is a dot, aspect machine tool of machine tool of linear control numerical control, outline control numerical control. Show cent to narrate as follows: