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(gai)設備工(gong)(gong)作臺直(zhi)徑 800mm,主軸功(gong)率 7.5kW,砂輪(lun)線速度(du) 32m/s,用于加工(gong)(gong)冷(leng)作模(mo)(mo)具(ju)模(mo)(mo)板(ban)(材質 Cr12MoV)。加工(gong)(gong)過程中,通過控(kong)制(zhi)磨削進給量 0.02mm,搭配(pei)乳化液降溫(wen),終模(mo)(mo)板(ban)平(ping)面度(du)誤(wu)差≤0.004mm,表面粗糙度(du) Ra0.025μm,模(mo)(mo)具(ju)合(he)模(mo)(mo)間隙控(kong)制(zhi)在 0.005-0.01mm,生產的沖壓件毛刺率從 8% 降至 1.2%,客戶訂單交付周期縮短 30%。
在(zai)汽車發動機零(ling)部件加工(gong)(gong)(gong)中,某車企使用 M74100 型圓臺(tai)平(ping)面磨(mo)床加工(gong)(gong)(gong)發動機缸體(材質鋁合金),設備承載量 2000kg,主軸徑(jing)向跳動≤0.003mm,采(cai)用分段磨(mo)削工(gong)(gong)(gong)藝,粗磨(mo)去除余量 0.2mm,精磨(mo)余量 0.05mm,加工(gong)(gong)(gong)后缸體上平(ping)面平(ping)行度誤差(cha)≤0.008mm,滿足發動機裝配密封(feng)性要求,缸體合格率(lv)從 93% 提升至 99%,每年減少廢品損(sun)失約 50 萬元。
在某些領域,某企業采用山東臨磨高(gao)精度數控(kong)圓臺平面磨床加(jia)工(gong)(gong)鈦合(he)金結構件(jian),設備定(ding)位精度 ±0.001mm,配備真空(kong)吸盤工(gong)(gong)裝,避免工(gong)(gong)件(jian)夾持變形,加(jia)工(gong)(gong)后結構件(jian)尺(chi)寸公差控(kong)制在(zai) ±0.005mm,表面粗糙度 Ra0.012μm,完全符合(he)標準,該設備的(de)引入(ru)使(shi)零部件(jian)加(jia)工(gong)(gong)周期縮短 40%,為型號產品按時交付提供保(bao)障。