機械(xie)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)設備使用的(de)(de)(de)材料(liao)須符(fu)合(he)安(an)全環(huan)保要(yao)求，不允許(xu)使用對(dui)(dui)人(ren)體有害和未(wei)經安(an)全部門(men)檢驗合(he)格的(de)(de)(de)材料(liao)。精(jing)密(mi)零(ling)件(jian)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)其實是機械(xie)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)一種，但是因為對(dui)(dui)零(ling)件(jian)的(de)(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)密(mi)度較高，對(dui)(dui)生(sheng)產機械(xie)及(ji)流程要(yao)求也比(bi)較高。隨著工(gong)(gong)(gong)(gong)業化(hua)發(fa)展，精(jing)密(mi)機械(xie)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)分類(lei)越(yue)來越(yue)多(duo)，方向越(yue)來越(yue)細，越(yue)來越(yue)化(hua)。機械(xie)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)是一種用加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)機械(xie)對(dui)(dui)工(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)外形(xing)尺寸或性能進行(xing)改變的(de)(de)(de)過程。按被(bei)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)工(gong)(gong)(gong)(gong)件(jian)處(chu)于的(de)(de)(de)溫度狀(zhuang)態﹐分為冷加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)和熱加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。

機械(xie)零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)上的(de)(de)點(dian)、線、面的(de)(de)實際位(wei)置(zhi)(zhi)(zhi)(zhi)與(yu)理(li)想(xiang)位(wei)置(zhi)(zhi)(zhi)(zhi)的(de)(de)符(fu)合程(cheng)(cheng)度(du)(du)。評定位(wei)置(zhi)(zhi)(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)的(de)(de)項(xiang)目按GB/T1182—1996規定，有(you)平行(xing)(xing)度(du)(du)、垂(chui)直(zhi)度(du)(du)、傾斜度(du)(du)、同(tong)軸度(du)(du)、對(dui)(dui)稱度(du)(du)、位(wei)置(zhi)(zhi)(zhi)(zhi)度(du)(du)、圓跳(tiao)動(dong)和(he)全跳(tiao)動(dong)等(deng)8項(xiang)。位(wei)置(zhi)(zhi)(zhi)(zhi)精(jing)(jing)(jing)度(du)(du)是用(yong)位(wei)置(zhi)(zhi)(zhi)(zhi)誤差來控(kong)制的(de)(de)，各項(xiang)目的(de)(de)位(wei)置(zhi)(zhi)(zhi)(zhi)公差分(fen)為12個(ge)精(jing)(jing)(jing)度(du)(du)等(deng)級。為提高工(gong)(gong)件(jian)(jian)質量(liang)和(he)延長(chang)使用(yong)壽命，宿州機械(xie)加(jia)(jia)(jia)工(gong)(gong)，需去除所有(you)金屬(shu)精(jing)(jing)(jing)密(mi)件(jian)(jian)上的(de)(de)毛刺。工(gong)(gong)件(jian)(jian)表面、銳角和(he)棱邊必須(xu)達到極高的(de)(de)金屬(shu)潔(jie)凈(jing)度(du)(du)，機械(xie)精(jing)(jing)(jing)密(mi)加(jia)(jia)(jia)工(gong)(gong)，必要(yao)(yao)時，必須(xu)適用(yong)于非電(dian)鍍和(he)電(dian)鍍金屬(shu)。產品(pin)(pin)(pin)在(zai)加(jia)(jia)(jia)工(gong)(gong)的(de)(de)時候，根據不(bu)同(tong)的(de)(de)產品(pin)(pin)(pin)要(yao)(yao)求要(yao)(yao)進行(xing)(xing)不(bu)同(tong)程(cheng)(cheng)度(du)(du)的(de)(de)加(jia)(jia)(jia)工(gong)(gong)，加(jia)(jia)(jia)工(gong)(gong)程(cheng)(cheng)度(du)(du)需要(yao)(yao)進行(xing)(xing)劃(hua)分(fen)，數控(kong)機械(xie)加(jia)(jia)(jia)工(gong)(gong)，如果對(dui)(dui)精(jing)(jing)(jing)度(du)(du)要(yao)(yao)求不(bu)高，那么進行(xing)(xing)一個(ge)簡單的(de)(de)粗(cu)加(jia)(jia)(jia)工(gong)(gong)階段就(jiu)行(xing)(xing)了(le)。產品(pin)(pin)(pin)的(de)(de)進度(du)(du)要(yao)(yao)求越來越嚴格，后(hou)續就(jiu)要(yao)(yao)進行(xing)(xing)半(ban)精(jing)(jing)(jing)加(jia)(jia)(jia)工(gong)(gong)和(he)精(jing)(jing)(jing)加(jia)(jia)(jia)工(gong)(gong)階段。

進行機(ji)械加(jia)工的(de)(de)時候一(yi)定要(yao)先將(jiang)其毛(mao)刺或(huo)者是磕碰傷情況(kuang)解決以后(hou)再放入(ru)到(dao)里(li)面，這樣(yang)就(jiu)能夠減少齒(chi)輪傳動噪(zao)音的(de)(de)出現。零(ling)件(jian)(jian)加(jia)工表面上(shang)，不應(ying)有(you)劃(hua)痕、擦傷等損傷零(ling)件(jian)(jian)表面的(de)(de)缺陷(xian)，加(jia)工的(de)(de)螺紋表面不允(yun)許有(you)黑(hei)皮、磕碰、亂扣和毛(mao)刺等缺陷(xian)。 所(suo)有(you)需要(yao)進行涂裝的(de)(de)鋼鐵制件(jian)(jian)表面在涂漆前，必須將(jiang)鐵銹(xiu)、氧化皮、油脂、灰塵、泥土、鹽(yan)和污(wu)物等除去。采用數控操作，機(ji)械加(jia)工價格表，可減少生(sheng)產工人，節約生(sheng)產成本；采用自動檢測(ce)及監控裝置，有(you)利(li)于提(ti)高工件(jian)(jian)的(de)(de)穩定性。