Treatment of numerical control machine tool interferes problem analysis in linear, circular arc

Dispatch of net of machine tool of Chinese numerical control: When CNC Milling machines spare parts flank with cutting tool, cutting tool has a radius, to machine this flank, workpiece of edge of method of cutting tool center with radius deflection, this radius deflection makes good omissions for cutting tool diameter namely. A few complex spare parts external forms, it is actually by a few simple linear - linear, linear - the appearance composition of circular arc, through discussing to its interference, personnel of numerical control process designing can undertake interfering an analysis to dot of a few keys, judge its to whether be interfered, this has certain sense to practice. When CNC Milling machines spare parts flank with cutting tool, cutting tool has a radius, to machine this flank, workpiece of edge of method of cutting tool center with radius deflection, this radius deflection makes good omissions for cutting tool diameter namely. Wait for spare parts appearance of composition by linear, circular arc, when be machined actually, if of cutting tool radius too big, often can have caused cut. The excessive cutting of cutting tool is called " interference " , interfere an examination to be able to check cutting tool beforehand whether excessive cutting, can avoid to machine medium needless trouble, improve treatment efficiency thereby, reduce waste. The introduces 　 　 to interfere an examination to go to the lavatory discussion of 1 vector, make vector in the crucial point of the spare parts above all, make way of cutting tool center next, and line out direction. Can have the method of the center of cutting tool and program way way comparative, whether is judgement interfered from inside both distinction. Here, discuss merely linear - linear, linear - the interference problem that the spare parts appearance of circular arc machines. Among them V1, v2, v3, v4 is in for the central method of cutting tool A, join of two paragraphs of circular arc nods B namely the vector that crucial point is in. Does the conditional 　 　 that 2 interference judge interfere the conditional: of judgement? Poison knocks at solemn fat to fight relatively horsefly of Qi Yin silk ribbon above of ° of?0 of  of brilliant of solemn fat fear, 270 ° are the following) . When cutting tool is processing the form of the spare parts, its method and treatment way are opposite, generation interference. The foreclose 　 　 of 3 interference makes good omissions when cutting tool diameter the only part A to the program, b, when C is carried out, a, many vector arise between B (V1, v2, v3, v4) , in B, many vector arise between C (V5, v6, v7, v8) . Begin an examination to whether be interfered from two recent vector above all, if interfere, undertake interfering handling, be opposite next ever since two two vector undertake closest interference processing. If be in the examination, the two two vector that check all are interfered, criterion numerical control system will interfere expunction automatically, cutting tool can produce linear shift. Does interference examination, interference handle following: ?  4 reach V5, interference, between expunction V3 and V6, interference- - between V2 of 　 of expunction 　 　 and V7, interference, between expunction V1 and V8, interference, expunction 　 　 all interference after expunction, cutting tool moves point-blank from V1-V8 intercrop. If be in the examination, only among them a certain only part vector is interfered, criterion numerical control system will interfere expunction automatically, in this sheet section cutting tool can produce linear shift. Does interference examination, interference handle following: ?  4 reach V5, interference, between expunction V3 and V6, interference, between V2 of 　 of expunction 　 　 and V7, between hands-off V1 and V8, interference, expunction 　 　 all interference after expunction, the shift of cutting tool is: V1, V2, V7, V8. 4 holidays interfere 　 　 to be in the program, do not have interference a little actually, but because be in,the direction of program of only part B and cutting tool diameter make good omissions way is opposite, cutting tool also can stop. (1) sunken place is less than cutting tool diameter to make good omissions quantity. Do not have interference actually, but the way that because only part is in,the direction of program of only part B and cutting tool diameter make good omissions is opposite, cutting tool stops here, indicate caution. (2) be less than cutting tool diameter to make good omissions the way way that the groove 　 　 of the quantity makes good omissions in the direction of program of only part B and cutting tool diameter is opposite, cutting tool stops, indicate caution. 　 of 5 summary 　 a few complex spare parts external forms, it is actually by a few simple linear - linear, linear - the appearance composition of circular arc, through discussing to its interference, personnel of numerical control process designing can undertake interfering an analysis to dot of a few keys, judge its to whether be interfered, this has certain sense to practice. CNC Milling