天津塑膠模具中熱處(chu)理后的鋼料大水磨如何加工？

一般(ban)情況下，工(gong)(gong)件通過熱處(chu)理(li)后(hou)會變(bian)形，有的面(mian)(mian)凹，有的面(mian)(mian)凸，硬(ying)度較硬(ying)，有的斜頂變(bian)形嚴(yan)重，加工(gong)(gong)較困(kun)難，工(gong)(gong)件越(yue)大越(yue)厚反而變(bian)形較少(shao)，加工(gong)(gong)起來(lai)比(bi)較容易，所(suo)以(yi)要根據工(gong)(gong)件的大小來(lai)確(que)定(ding)加工(gong)(gong)的方式(shi)。東莞塑膠模具(ju)中熱處(chu)理(li)后(hou)的鋼料大水磨如何(he)加工(gong)(gong)？

天津塑膠模具前后模仁、滑塊、耐模板等通過大水磨加工開粗，鋼料的余量一般都會在50-60絲左右余量，在塑膠模具中模仁、滑塊的精度要求相當高，所以在對工件的加工前，先對工件各個部位的尺寸進行卡數，看余量是否充足和均衡，尤其有臺階的工件一定要卡仔細，做到心中有數合理加班工件的幾個面，從而避免一個面的余量多碾磨，而造成其它的面余量不足，導致工件直接報廢。所以在水磨加工過程中首先對工件的一個平面進行碾磨，盡量選擇變形的一面先進行碾磨，在控制好余量，碾磨之前把砂輪修平，開粗前砂輪不要修得太細，大水磨的工作臺面上要擦得干干凈凈，上磁，啟動電源，抬高機頭，對刀，輕輕地溜一刀，看在工件的平面那里擦出火花，抬高10-20絲；開啟自動，再次溜刀，前后左右擺動的行程調節好，邊溜刀邊輕輕進刀，開啟切削液進行冷卻，慢慢進刀直到擦出火花，看刻度并把刻度歸零，方便記住加工進了多少余量，看擦出火花的大小來確定進刀量，由于熱處理的工件較硬，在碾磨的過程中砂輪會很吃力，非常難啃；所以要不斷的修復砂輪，確保砂輪的尖銳性，較快的把工件面碾磨好，最后幾刀進幾絲輕輕的光刀，使工件的面光滑、平。再把光好的面放在機臺臺面上，進行這個面的碾磨加工，通過上述方法進行操作，把工件直接加工到位。

       再以(yi)碾磨(mo)(mo)好(hao)的上(shang)(shang)下(xia)面(mian)為基準(zhun)面(mian)，借助于PS治具打直(zhi)角，不同的工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)采用不同的裝夾方(fang)法，用光好(hao)的上(shang)(shang)下(xia)面(mian)死貼PS的兩個(ge)垂(chui)(chui)直(zhi)面(mian)，再用扳手鎖(suo)緊，工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的另(ling)一面(mian)不要(yao)超出PS的側(ce)面(mian)，把(ba)PS擦干凈(jing)，PS的正面(mian)放(fang)在臺(tai)面(mian)上(shang)(shang)進(jin)(jin)行(xing)(xing)碾磨(mo)(mo)，見光就止，再停機(ji)，把(ba)PS拿下(xia)來(lai)，弄干凈(jing)，臺(tai)面(mian)擦干凈(jing)；以(yi)確(que)保工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的垂(chui)(chui)直(zhi)度(du)，再把(ba)PS的側(ce)面(mian)平放(fang)在工(gong)(gong)(gong)(gong)作臺(tai)面(mian)上(shang)(shang)，上(shang)(shang)磁；把(ba)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的這個(ge)面(mian)給光出來(lai)，控制好(hao)余量(liang)，再把(ba)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)從(cong)PS中拿出來(lai)，這里一定(ding)要(yao)注意，工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的毛刺(ci)一定(ding)要(yao)清理(li)干凈(jing)，工(gong)(gong)(gong)(gong)作臺(tai)面(mian)一定(ding)要(yao)弄干凈(jing)，不然會(hui)影響工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的垂(chui)(chui)直(zhi)度(du)。對工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)進(jin)(jin)行(xing)(xing)檢(jian)(jian)測(ce)，把(ba)通過檢(jian)(jian)測(ce)儀(yi)器測(ce)出工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的垂(chui)(chui)直(zhi)度(du)，前后相差(cha)多(duo)少絲，若垂(chui)(chui)直(zhi)度(du)不合(he)格(ge)，工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)通過上(shang)(shang)述(shu)方(fang)法再次對工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)進(jin)(jin)行(xing)(xing)打直(zhi)角處理(li)；在公差(cha)范圍內(nei)合(he)格(ge)，再對其(qi)它兩個(ge)面(mian)進(jin)(jin)行(xing)(xing)碾磨(mo)(mo)加工(gong)(gong)(gong)(gong)，把(ba)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的尺寸(cun)加工(gong)(gong)(gong)(gong)到(dao)位(wei)，值得注意的事(shi)，不同的工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)有不同的加工(gong)(gong)(gong)(gong)方(fang)式和(he)方(fang)法，無(wu)論(lun)加工(gong)(gong)(gong)(gong)那個(ge)面(mian)，都(dou)要(yao)把(ba)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的毛刺(ci)除干凈(jing)，機(ji)臺(tai)臺(tai)面(mian)擦干凈(jing)，以(yi)確(que)保工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的精度(du)。