Of machining center bore hole the processing technique of treatment

1 tool roll and lathe treatment are different, because the tool is rotational,machining center adds man-hour, the case that masters point of a knife in time in treatment impossibly will adjust feed quantity. Can adjust impossibly also only in that way like numerical control lathe numerical control is pressed it is OK to twist the change machines a diameter. This became a when complete automation machines very big obstacle. Because machining center is not had,also machining diametical adjustment function automatically (with) of except of U axis functionary, must have fine tuning orgnaization with respect to requirement boring cutter or compensate function automatically, ask to must adjust in micron class sometimes according to tolerancepublic errand when boring of essence of life especially. Additional, direction is poured out of as a result of what cut bits when machining center bores hole changing ceaselessly, when so the refrigeration of point of a knife, workpiece and the eduction that cut bits should be machined than lathe many difficult. Vertical,use especially model when machining center undertakes the blind aperture thick boring of steel is machined, up to now this problem has not gotten be settlemented completely. 2.

2 flutter (Chatter) 　 bores hole when treatment most often appear, also be to make a person headache most the problem is flutter. The tigidity that there basically is system of tool of ① of 　 of 　 of the following 　 in the account that flutter produces on machining center (Rigidity) : Include the tigidity of head of lever of knife handle, boring, boring and intermediate join part. Because be cantilever treatment (StubBoring) so especially when the treatment of alveolus, deep aperture and horniness workpiece, the tigidity of tool system is attached most importance to especially should. The dynamic balancing of ② tool system (Balance) : Relative to the rotational axes at tool system, if tool oneself has one lopsided quality, the happening of flutter is brought about because of the action of lopsided centrifugal force when roll. The impact of generation of place of dynamic balancing sex that increases man-hour tool in high speed especially is very big. The fixed tigidity of ③ workpiece oneself or workpiece (ClampingRigidity) : As a result of its like a few lesser, smaller parts the tigidity of oneself is not worth, or because the reason such as workpiece appearance cannot be used,treat reasonably undertake be fixedded adequately. The appearance of point of a knife of ④ razor blade (GeometryofEdge) : Of bit before horn, escape the cutting that the different place of appearance of the radius of horn, point of a knife, chamfer that break bits produces fights force to also differ. ⑤ cutting condition (CuttingCondition) : Include cutting speed, feed, feed quantity and means giving oil and sort. The main shaft system of ⑥ machine (Spindle) : The join between the function of the tigidity of oneself of machine main shaft, bearing and gear and main shaft and knife handle is rigid. 3, the choice of the chooses basis of fiducial 　 　 to machine content different boring tool of boring cutter is fiducial different also, generally speaking, the tigidity that should notice systematic itself, dynamic balancing sex, flexible, reliability, operation is convenient gender and life and cost. 3.

Type of 1 an organic whole (Solid) boring cutter and module type (on the product line that the boring cutter of type of an organic whole with Modular) old boring cutter basically uses in volume product or special machine, but actually the norms of the machine has varied: NIV of 　 of T, MT, BT, 　 , CV, DV is waited a moment. Although norms is same, size also has different. If BT has 15, 30, 40, 45, 50, 60 etc. Although norms, size is same, pull a hammer likely appearance, whorl is different, or flange face figure is different. These make boring cutter of type of an organic whole encounters very great difficulty on correspondence. Especially some closer year come, market structure, market needs change with each passing day, product cycle shortens increasingly, this machines machinery and treatment tool to have with respect to the requirement more sufficient flexible (Suppleness) . So great majority of boring cutter of type of an organic whole already disappeared from inside workshop. Module type boring cutter is boring cutter cent is namely: Fundamental handle (BasicHolder) , lengthen implement (Extension) , reduce way implement (lever of Reduction) , boring) , boring head (BoringHead) , razor blade (InsertHolder) , razor blade (Insert) , (annulus pouring wine cup) wait for many parts, next the treatment content with specific basis (boring of thick boring, essence of life; The diameter of aperture, deepness, appearance; Workpiece material is waited a moment) have free combination. Such not only the amount that reduced knife handle greatly, reduced cost, OK also and rapid correspondence all sorts of treatment requirements, prolong the life of cutting tool whole. Module type boring cutter most appear in European market first, big clear of the Japan about 20 years ago and machine of essence of life company limited (BIG) and Swiss KAISER company undertake the technology cooperates, boring cutter of BIG-KAISER module type appears in Japanese market first, replaced the position of boring cutter of type of an organic whole gradually. Nowadays the 80% above in machining workshop of Japan are boring tool of used BIG-KAISER module type. Be shown from this and see, module type boring cutter has the advantage that boring cutter of type of an organic whole cannot is likened to. Of course, this also needs module type boring cutter to have tall join precision and tall join tigidity, and tall the reliability that repeats precision and height. 3.

2 various module type boring cutter are existing in the market now systems of various module type boring cutter, their join means has distinction each. It should lean ① BIG-KAISER way only a taper joins for the cone-shaped screw of 15 ° , small spanner of a 6 horn also needs only when securing, the operation is very convenient. As a result of screw and it is certain to be joined have between the taper hole of body prejudicial, should come back the action that cone relies on when close screw, will come back the pulling force of the axial of majority translate into of close force, make by connective two parts are stuck close, and hold radial position changeless. Fixed screw is made with material of tall clipping intensity, can bear bigger torque, and be set when thick boring strengthen tie. Firm style shows ② side to just see, means of this kind of join is to achieve fixed goal merely. Its come back the majority of close force sides with radial. Not only the end panel of link system cannot osculant, radial position also can produce change. ③ comes back to although end panel gets,join into type, but point of a knife is in circumferential the phasic meeting that attend produces change. The join of end panel of hind and taut type mixes ④ it is better to beat, but operation sex is very poor. 90 ° secured side of ⑤ other fashion at 2 o'clock means; Flank 180 ° tilted at 2 o'clock fixed means; ABS means is waited a moment. Altogether, system of module type boring cutter has very large dominant position, but not be saying to want only is module type good. Must be measured from the many sided such as sex of join tigidity, precision, operation, price. CNC Milling CNC Machining