汽車機(jī)械 英語(yǔ)翻譯-文庫(kù)吧
2024-11-12 06:43 本頁(yè)面
【正文】 The superimposed effect of servo systems of figures for the whole closedloop and expert system of PILOT EXPERT III can control the length of series pulse under concentrated discharge。 The flatness of the processing of surface will get better when series pulse disappear sooner， but it also brings a problem of low efficiency。 Normally， the highest efficiency occurred when series pulse only to end up in the Arc。 Of course， this could be set by operator according to the requirements plans of workpiece surface map 。 It is necessary to solve the problem of BTA reliably when finishing in a small space。 Normally ， the method is to use the oilpumping to scour the BTA， it can ensure the processing under stable condition。 It will take a great impact to flatness of the workpiece which have been finished and strong erosion will lead to anormal loss in edge and corner ， when the uneven flow cause the uneven chip backlog 。 In this regard， the solution Chamier proposed is that do effort to lifting。 In finishing ， the time carrying knives were about and the height of lift about 10 times to the discharge gap ， so the knife will raising in 0。 6mm。 It is difficult to achieve high speed in such a short period of time and the trip of cutter is such small。 Meanwhile， due to the small space， and the restoration of the disgraced discharge form will be a moment of considerable fluid pressure 500cm2 generally about the finishing area， we could have the reverse 3000N pressure。 So say enough strength simply mention high speed。 Thickened this Chamier the drive screw and greater use of the bearings， to withstand high reverse edge。 The same time to ensure that the small area of the narrow worse snag obtain higher lifting speed， Machine maximum speed was increased twofold， close to 3m/min， acceleration up to 。 For example， when the electrode section size of 2mm 20mm， processing cavity depth of 100mm， processing of graphite electrodes used in only hours， using copper electrode processing just 。 It is very difficult to EDM ， if we widen the scope of times under the characteristics of lowspeed with the highly demanding In fact， it is very limited to do effect to press the void time occupied by lifting under servo system 。 Chamier Another measure taken in PILOT EXPERT III control， carrying knives so that the parameters set up with the processing of different changes， it started processing may not carry knives， or random servo carry knives。 Meanwhile gap detection threshold can have the depth and degree of change in the shallow surface processing， BTA patent on cards could relax， to allow more pulse discharge。 The effect is obvious that these two measures applied to the processing of narrow groove and the efficiency can improve 12 times。
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