選擇(ze)大(da)理石(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)作為檢(jian)(jian)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)零部件(jian)的高(gao)精(jing)(jing)度(du)(du)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)儀(yi)(yi)器，主要(yao)(yao)是(shi)(shi)(shi)由于大(da)理石(shi)(shi)(shi)取材于深埋地(di)(di)底(di)下(xia)的優良巖石(shi)(shi)(shi)，經過長(chang)時間自然時效，形態特別穩定，結晶細密(mi)，質(zhi)地(di)(di)堅(jian)硬，由此研磨(mo)成的平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)具有高(gao)精(jing)(jing)度(du)(du)。那么(me)如何檢(jian)(jian)驗(yan)大(da)理石(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)精(jing)(jing)度(du)(du)是(shi)(shi)(shi)符合(he)(he)用(yong)(yong)(yong)戶要(yao)(yao)求。  　　拖表(biao)(biao)法(fa)   　　1將百分(fen)(fen)表(biao)(biao)或(huo)(huo)者(zhe)(zhe)千分(fen)(fen)表(biao)(biao)固定在表(biao)(biao)座(zuo)或(huo)(huo)者(zhe)(zhe)表(biao)(biao)架上，裝表(biao)(biao)時鎖緊力(li)不(bu)(bu)可(ke)達(da)大(da)，以(yi)防套筒變形卡往測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)桿(gan)(gan)。   　　2.調節(jie)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)桿(gan)(gan)與(yu)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)平(ping)(ping)(ping)(ping)(ping)(ping)面垂直平(ping)(ping)(ping)(ping)(ping)(ping)行，要(yao)(yao)不(bu)(bu)然會(hui)使(shi)(shi)(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)結果產生(sheng)很大(da)偏差。   　　3.測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)前(qian)調節(jie)回(hui)零，先使(shi)(shi)(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)針(zhen)(zhen)與(yu)基準面觸碰，壓測(ce)(ce)(ce)(ce)(ce)(ce)(ce)頭使(shi)(shi)(shi)大(da)指(zhi)(zhi)針(zhen)(zhen)擺放超(chao)出(chu)整圈(quan)，旋轉刻(ke)度(du)(du)盤使(shi)(shi)(shi)0線(xian)與(yu)大(da)指(zhi)(zhi)針(zhen)(zhen)對齊，隨后把(ba)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)桿(gan)(gan)頂(ding)端提到1-2毫米(mi)再放開手(shou)使(shi)(shi)(shi)其(qi)落(luo)下(xia)來(lai)，反反復復2-3次(ci)后檢(jian)(jian)驗(yan)表(biao)(biao)針(zhen)(zhen)是(shi)(shi)(shi)不(bu)(bu)是(shi)(shi)(shi)仍與(yu)0線(xian)對齊，如不(bu)(bu)齊則重調。   　　4.檢(jian)(jian)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)時，用(yong)(yong)(yong)手(shou)輕輕地(di)(di)抬起測(ce)(ce)(ce)(ce)(ce)(ce)(ce)桿(gan)(gan)，將工(gong)件(jian)放進(jin)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)針(zhen)(zhen)下(xia)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)，不(bu)(bu)能(neng)把(ba)工(gong)件(jian)強制送入測(ce)(ce)(ce)(ce)(ce)(ce)(ce)針(zhen)(zhen)下(xia)。   　　5.通過百分(fen)(fen)表(biao)(biao)或(huo)(huo)者(zhe)(zhe)千分(fen)(fen)表(biao)(biao)指(zhi)(zhi)什(shen)的跳(tiao)動來(lai)判(pan)斷大(da)理石(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)精(jing)(jing)度(du)(du)誤差。     　　注(zhu)意事項   　　1.不(bu)(bu)管是(shi)(shi)(shi)使(shi)(shi)(shi)用(yong)(yong)(yong)還是(shi)(shi)(shi)進(jin)行精(jing)(jing)度(du)(du)等級檢(jian)(jian)驗(yan)，都(dou)需要(yao)(yao)把(ba)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)量(liang)(liang)(liang)(liang)具放置在一(yi)個(ge)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)位置。通常使(shi)(shi)(shi)用(yong)(yong)(yong)配套支(zhi)(zhi)架來(lai)支(zhi)(zhi)撐(cheng)和(he)調平(ping)(ping)(ping)(ping)(ping)(ping)大(da)理石(shi)(shi)(shi)檢(jian)(jian)驗(yan)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)。通過調整三個(ge)支(zhi)(zhi)撐(cheng)點，用(yong)(yong)(yong)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)儀(yi)(yi)將平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)量(liang)(liang)(liang)(liang)具大(da)致調至(zhi)水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)。   　　2.不(bu)(bu)要(yao)(yao)使(shi)(shi)(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)桿(gan)(gan)突然之間撞落(luo)到工(gong)件(jian)上，也(ye)不(bu)(bu)可(ke)以(yi)猛烈振動、敲擊指(zhi)(zhi)示(shi)表(biao)(biao)。   　　3.量(liang)(liang)(liang)(liang)時特別注(zhu)意表(biao)(biao)的測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)范圍(wei)(wei)(wei)，不(bu)(bu)可(ke)以(yi)使(shi)(shi)(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)頭水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)位移超(chao)出(chu)范圍(wei)(wei)(wei)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)量(liang)(liang)(liang)(liang)范圍(wei)(wei)(wei)，以(yi)防過分(fen)(fen)伸長(chang)彈黃，毀壞指(zhi)(zhi)示(shi)表(biao)(biao)。   　　4.當測(ce)(ce)(ce)(ce)(ce)(ce)(ce)桿(gan)(gan)移動產生(sheng)阻滯時，不(bu)(bu)能(neng)強力(li)推壓測(ce)(ce)(ce)(ce)(ce)(ce)(ce)頭，須(xu)送計量(liang)(liang)(liang)(liang)室處理   　　5.不(bu)(bu)要(yao)(yao)使(shi)(shi)(shi)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)頭跟(gen)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)桿(gan)(gan)做過多無效的運動，否則會(hui)加快零件(jian)磨(mo)損，使(shi)(shi)(shi)表(biao)(biao)失(shi)去(qu)應有精(jing)(jing)度(du)(du)。   　　大(da)理石(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)廠家一(yi)般使(shi)(shi)(shi)用(yong)(yong)(yong)電子水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)儀(yi)(yi)，采(cai)用(yong)(yong)(yong)對角(jiao)線(xian)法(fa)檢(jian)(jian)驗(yan)工(gong)作面平(ping)(ping)(ping)(ping)(ping)(ping)面度(du)(du)，但是(shi)(shi)(shi)購買一(yi)臺(tai)(tai)(tai)(tai)電子水(shui)(shui)平(ping)(ping)(ping)(ping)(ping)(ping)儀(yi)(yi)的價格(ge)比較貴，除了平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)生(sheng)產廠家和(he)A檢(jian)(jian)測(ce)(ce)(ce)(ce)(ce)(ce)(ce)機構，其(qi)它地(di)(di)方很少有這(zhe)種設備的，其(qi)實不(bu)(bu)管用(yong)(yong)(yong)什(shen)么(me)方法(fa)和(he)工(gong)具來(lai)檢(jian)(jian)驗(yan)大(da)理石(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)臺(tai)(tai)(tai)(tai)精(jing)(jing)度(du)(du)，只要(yao)(yao)配合(he)(he)熟練(lian)的操作技術(shu)和(he)出(chu)廠檢(jian)(jian)驗(yan)報告，反復多次(ci)驗(yan)證(zheng)即可(ke)。