大型鑄鐵橫豎T型槽平臺采用機床加工注意事項
鑄(zhu)鐵橫豎T型(xing)槽平(ping)臺(tai)屬于大(da)型(xing)的鑄(zhu)件,大(da)型(xing)的鑄(zhu)鐵平(ping)臺(tai)噸(dun)位可以(yi)達到好幾十噸(dun),所以(yi)在(zai)加(jia)工的時候(hou)我們應該配合相應的機(ji)床(chuang)進(jin)行加(jia)工,并且在(zai)機(ji)床(chuang)調整,刀具選(xuan)擇,和裝(zhuang)卡(ka)三個方面控制好:
1、機床調整
1)、根據(ju)鑄鐵平臺的(de)(de)被加工表面與刀具的(de)(de)相(xiang)對位置(zhi),將(jiang)橫梁的(de)(de)度(du)調到適當的(de)(de)位置(zhi)。
2)、將兩(liang)個側刀架的(de)度調到(dao)適宜(yi)刨削平板兩(liang)側面的(de)位置。
3)、因鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)的重量大,行程長,所以切削速(su)度不宜(yi)選擇過。要在運行中調整行程長短,并要求在工(gong)作行程開(kai)始時能(neng)使(shi)刀具(ju)低(di)速(su)切入平(ping)板(ban)(ban),在工(gong)作行程結(jie)束時能(neng)使(shi)刀具(ju)低(di)速(su)切出鑄(zhu)(zhu)鐵(tie)平(ping)板(ban)(ban)。
大(da)型鑄鐵橫豎(shu)T型槽平臺
2、刀具的選擇
1、平(ping)頭(tou)精刨刀。這(zhe)種刀具的切(qie)削(xue)刃較寬且平(ping)直(zhi),適宜(yi)鑄鐵平(ping)板的精刨和半(ban)精刨用。
2、機械夾固式尖頭(tou)刨刀。適用于(yu)鑄鐵(tie)平板的粗(cu)加(jia)工(gong)或半精加(jia)工(gong)。
3、鑄(zhu)鐵(tie)橫(heng)豎T型槽平(ping)(ping)臺(tai)的(de)(de)(de)裝夾:鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)夾緊方法(fa)應按平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)外形(xing)情況而定。若鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)兩(liang)端有(you)臺(tai)階或凹槽,則可(ke)用(yong)(yong)壓板(ban)(ban)(ban)(ban)(ban)在(zai)該(gai)處搭壓。若工(gong)(gong)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)兩(liang)端無法(fa)搭壓板(ban)(ban)(ban)(ban)(ban),可(ke)用(yong)(yong)斜(xie)鐵(tie)或螺絲撐將(jiang)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)夾緊。鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)安裝在(zai)龍門刨(bao)床的(de)(de)(de)兩(liang)立柱之間,使鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)兩(liang)側(ce)面(mian)(mian)與工(gong)(gong)作(zuo)(zuo)臺(tai)的(de)(de)(de)兩(liang)側(ce)面(mian)(mian)之間的(de)(de)(de)距離(li)大致(zhi)(zhi)相(xiang)等,并用(yong)(yong)畫線盤找正鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)側(ce)面(mian)(mian)使其與工(gong)(gong)作(zuo)(zuo)臺(tai)側(ce)面(mian)(mian)大致(zhi)(zhi)平(ping)(ping)行。粗加工(gong)(gong)時(shi),因為(wei)鑄(zhu)鐵(tie)T型槽平(ping)(ping)臺(tai)的(de)(de)(de)底面(mian)(mian)是(shi)毛坯(pi)面(mian)(mian)(粗基準),為(wei)了便于找正鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)加工(gong)(gong)平(ping)(ping)面(mian)(mian)與工(gong)(gong)作(zuo)(zuo)臺(tai)面(mian)(mian)平(ping)(ping)行,以及(ji)保護工(gong)(gong)作(zuo)(zuo)臺(tai)面(mian)(mian),應在(zai)鑄(zhu)鐵(tie)平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)的(de)(de)(de)四個(ge)角(jiao)上放置等的(de)(de)(de)墊鐵(tie),應使平(ping)(ping)板(ban)(ban)(ban)(ban)(ban)四個(ge)角(jiao)位于同(tong)一平(ping)(ping)面(mian)(mian)。
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