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數控車(che)床進給(gei)加(jia)工(gong)路(lu)線指車(che)刀從對刀點（或機床固定原點）開(kai)始運動起(qi)，直(zhi)至返回該點并結(jie)束(shu)加(jia)工(gong)程序所經過的(de)路(lu)徑(jing)，包括(kuo)切削加(jia)工(gong)的(de)路(lu)徑(jing)及刀具切入(ru)、切出等(deng)非切削空行程路(lu)徑(jing)。
精加(jia)工(gong)的進(jin)給(gei)路(lu)線(xian)基(ji)本上都是沿其零件輪廓順序(xu)進(jin)行(xing)的，因此，確定進(jin)給(gei)路(lu)線(xian)的工(gong)作重(zhong)點是確定粗加(jia)工(gong)及空(kong)行(xing)程的進(jin)給(gei)路(lu)線(xian)。
在數控車床加(jia)(jia)工(gong)中(zhong)，加(jia)(jia)工(gong)路線的確(que)定一般要遵循(xun)以下(xia)幾方面原(yuan)則。
①應(ying)能(neng)保證被(bei)加(jia)工(gong)工(gong)件的精度和(he)表面粗(cu)糙度。
②使加工路線比較(jiao)短，減少空行程時間，提(ti)高加工效率。
③盡量(liang)簡化數值計算(suan)的工作量(liang)，簡化加工程序。
④對于某些重(zhong)復使用的程序，應使用子程序。
![2-1G011132358[1].jpg](/upfiles/2019/56164.jpg "56164.jpg")
The CNC lathe feed route refers to the path through which the tool starts from the point of the knife(or the fixed origin of the machine tool) until it returns to that point and ends the processing process. Including the cutting process path and cutting tool cut, cut out and other non-cutting blank path.
The refined feed route is basically carried out along the outline of its parts. Therefore, the focus of determining the feed route is to determine the feed route for rough processing and empty stroke.
In NC lathe processing, the determination of the processing route generally follows the following principles.
1 It should be able to guarantee the accuracy and surface roughness of the workpiece being processed.
Make the processing route the shortest, reduce the empty travel time and improve the processing efficiency.
3 Try to simplify the workload of numerical calculations and simplify the processing process.
For some reusable procedures, subroutines should be used.