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如何对加工工序进行划分

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扫一扫!如何对加工工序进行划分扫一扫!
浏览:- 发布日期:2016-03-18 09:53:00【

数控加工工序(xu)的划分(fen)一(yi)般可按下列(lie)方法(fa)进行:

(1)刀具(ju)集中(zhong)分序法 就是(shi)按(an)所用刀具(ju)划分工(gong)序,用同一把(ba)刀具(ju)加(jia)工(gong)完零件上所有可以完成(cheng)的部位。在(zai)用第(di)二把(ba)刀、第(di)三把(ba)完成(cheng)它们可以完成(cheng)的其它部位。这样可减少(shao)换刀次数(shu),压缩空程时间,减少(shao)不必(bi)要的定位误差。

(2)以加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)部位分(fen)(fen)(fen)序法 对于(yu)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)内容很多的(de)零(ling)件(jian),可(ke)按其结构特点将加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)部分(fen)(fen)(fen)分(fen)(fen)(fen)成几(ji)个部分(fen)(fen)(fen),如内形、外形、曲面(mian)或平面(mian)等。一般先(xian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)平面(mian)、定位面(mian),后加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)孔;先(xian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)简单的(de)几(ji)何(he)形状(zhuang),再(zai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)复杂(za)的(de)几(ji)何(he)形状(zhuang);先(xian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)较低的(de)部位,再(zai)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)要求较高的(de)部位。

(3)以粗、精加(jia)工(gong)分(fen)(fen)序(xu)法 对于(yu)易发生(sheng)(sheng)加(jia)工(gong)变形(xing)(xing)的(de)(de)零件,由于(yu)粗加(jia)工(gong)后可能发生(sheng)(sheng)的(de)(de)变形(xing)(xing)而(er)需(xu)要进行(xing)校形(xing)(xing),故一般来(lai)说凡要进行(xing)粗、精加(jia)工(gong)的(de)(de)都(dou)要将工(gong)序(xu)分(fen)(fen)开。

综上所述,在划(hua)分(fen)工(gong)(gong)(gong)序时,一定(ding)(ding)要视零(ling)件的结构与工(gong)(gong)(gong)艺(yi)性,数控加工(gong)(gong)(gong)中心机床的功(gong)能(neng),零(ling)件数控加工(gong)(gong)(gong)内容的多少,安装次数及(ji)本单位生产组织状(zhuang)况(kuang)灵(ling)活掌握。另建议采用工(gong)(gong)(gong)序集中的原(yuan)则(ze)还是采用工(gong)(gong)(gong)序分(fen)散的原(yuan)则(ze),要根据实际情况(kuang)来确定(ding)(ding),但一定(ding)(ding)力求合理(li)。