圓形任務臺又名圓形鑄鐵定盤，圓形機床定盤，裝備了可以拆開的導磁條，鑄鐵定盤可以在上面加工成一些固定工件所需的非凡工裝，知足一些非凡車削工藝的需求。
鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤是立(li)式車床裝(zhuang)(zhuang)夾(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)的(de)(de)新型(xing)隸屬東西。本來立(li)式車床只能(neng)(neng)應用(yong)壓板螺栓和卡鉗裝(zhuang)(zhuang)夾(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)，車削(xue)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)進(jin)程(cheng)中(zhong)反重復(fu)復(fu)地裝(zhuang)(zhuang)拆(chai)夾(jia)(jia)(jia)具，不(bu)成能(neng)(neng)一(yi)次性完成端面、內圓(yuan)(yuan)(yuan)、外圓(yuan)(yuan)(yuan)的(de)(de)車削(xue)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)；還有些(xie)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)別的(de)(de)加(jia)(jia)焊裝(zhuang)(zhuang)夾(jia)(jia)(jia)的(de)(de)胎(tai)架，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤完成后(hou)再割除胎(tai)架，打(da)磨修(xiu)整，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤尤其有些(xie)壁厚不(bu)大(da)的(de)(de)環形(xing)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)，假如用(yong)夾(jia)(jia)(jia)鉗固定(ding) 會變(bian)形(xing)掉圓(yuan)(yuan)(yuan)，用(yong)壓板螺栓固定(ding)，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤工(gong)(gong)(gong)(gong)(gong)(gong)序翻來覆去很不(bu)便利。既影響(xiang)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)度，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤又操作復(fu)雜，辛(xin)苦費時。假如采用(yong)圓(yuan)(yuan)(yuan)形(xing)永磁(ci)任(ren)(ren)(ren)務(wu)(wu)臺(tai)固定(ding)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤只須將工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)放在(zai)圓(yuan)(yuan)(yuan)臺(tai)面上，再應用(yong)圓(yuan)(yuan)(yuan)臺(tai)上設置的(de)(de)齊(qi)(qi)心刻度尺和齊(qi)(qi)心滑塊(kuai)找圓(yuan)(yuan)(yuan)、找正、扭(niu)轉磁(ci)力(li)(li)開關，工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)即被緊(jin)緊(jin)吸住(zhu)。可以一(yi)次性完成端面、鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤內圓(yuan)(yuan)(yuan)、外圓(yuan)(yuan)(yuan)的(de)(de)車削(xue)。此(ci)工(gong)(gong)(gong)(gong)(gong)(gong)藝簡略(lve)、快捷、準(zhun)確、省力(li)(li)，縮短(duan)輔(fu)佐(zuo)任(ren)(ren)(ren)務(wu)(wu)工(gong)(gong)(gong)(gong)(gong)(gong)夫，進(jin)步任(ren)(ren)(ren)務(wu)(wu)效(xiao)率(lv)。圓(yuan)(yuan)(yuan)形(xing)任(ren)(ren)(ren)務(wu)(wu)臺(tai)上還裝(zhuang)(zhuang)備了(le)可以拆(chai)開的(de)(de)導磁(ci)條，鑄(zhu)(zhu)(zhu)鐵(tie)(tie)(tie)(tie)定(ding)盤可以在(zai)上面加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)成一(yi)些(xie)固定(ding)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)所需(xu)的(de)(de)非(fei)凡工(gong)(gong)(gong)(gong)(gong)(gong)裝(zhuang)(zhuang)，知(zhi)足一(yi)些(xie)非(fei)凡車削(xue)工(gong)(gong)(gong)(gong)(gong)(gong)藝的(de)(de)需(xu)求。