在高精度模具制造領域,某模具企業引入 M7480 型圓臺平面磨床,該設(she)備工作(zuo)臺直徑 800mm,主軸功率 7.5kW,砂輪線速度(du) 32m/s,用(yong)于(yu)加工冷作(zuo)模(mo)具模(mo)板(材質(zhi) Cr12MoV)。加工過程(cheng)中,通過控制(zhi)(zhi)磨削進給量 0.02mm,搭(da)配(pei)乳化(hua)液(ye)降(jiang)溫,終模(mo)板平面度(du)誤差≤0.004mm,表面粗糙度(du) Ra0.025μm,模(mo)具合模(mo)間隙控制(zhi)(zhi)在 0.005-0.01mm,生(sheng)產的沖(chong)壓件毛刺(ci)率從 8% 降(jiang)至(zhi) 1.2%,客戶訂單交付(fu)周期縮短 30%。
在汽車(che)發(fa)動(dong)(dong)(dong)機(ji)零部(bu)件(jian)加(jia)工(gong)中,某車(che)企使用 M74100 型圓臺平(ping)面(mian)(mian)磨床加(jia)工(gong)發(fa)動(dong)(dong)(dong)機(ji)缸(gang)體(ti)(材質(zhi)鋁合金),設(she)備承載量 2000kg,主軸徑向跳動(dong)(dong)(dong)≤0.003mm,采用分(fen)段磨削(xue)工(gong)藝,粗磨去除余量 0.2mm,精(jing)磨余量 0.05mm,加(jia)工(gong)后缸(gang)體(ti)上平(ping)面(mian)(mian)平(ping)行度誤差≤0.008mm,滿(man)足發(fa)動(dong)(dong)(dong)機(ji)裝(zhuang)配密(mi)封性要求,缸(gang)體(ti)合格率從 93% 提升至 99%,每年減(jian)少廢品損失(shi)約 50 萬(wan)元。
在某些領域,某企業采用山東臨磨高精(jing)度數(shu)控圓(yuan)臺平面(mian)磨床加工(gong)(gong)(gong)鈦合(he)金(jin)結構件,設備定位(wei)精(jing)度 ±0.001mm,配備真空吸盤工(gong)(gong)(gong)裝,避免(mian)工(gong)(gong)(gong)件夾持變(bian)形(xing),加工(gong)(gong)(gong)后結構件尺寸公差控制在 ±0.005mm,表面(mian)粗糙(cao)度 Ra0.012μm,完(wan)全(quan)符合(he)標準,該設備的引(yin)入使零部件加工(gong)(gong)(gong)周期(qi)縮(suo)短 40%,為型號產品按時交付(fu)提供保障。