五金(jin)(jin)零件加(jia)(jia)(jia)工(gong)(gong)(gong)精度是加(jia)(jia)(jia)工(gong)(gong)(gong)后零件表面(mian)的實際尺(chi)寸、形狀、位置(zhi)三種幾(ji)何(he)參(can)數(shu)與圖紙要求的理想幾(ji)何(he)參(can)數(shu)的符合程度。理想的幾(ji)何(he)參(can)數(shu)，對尺(chi)寸而言(yan)，就(jiu)是平(ping)均尺(chi)寸；對表面(mian)幾(ji)何(he)形狀而言(yan)，就(jiu)是絕(jue)對的圓(yuan)、圓(yuan)柱(zhu)、平(ping)面(mian)、錐面(mian)和直線等；對表面(mian)之(zhi)間的相互位置(zhi)而言(yan)，就(jiu)是絕(jue)對的平(ping)行(xing)、垂(chui)直、同軸、對稱(cheng)等。零件實際幾(ji)何(he)參(can)數(shu)與理想幾(ji)何(he)參(can)數(shu)的偏離數(shu)值稱(cheng)為加(jia)(jia)(jia)工(gong)(gong)(gong)誤差。博鑫精密是以(yi)不銹鋼零件加(jia)(jia)(jia)工(gong)(gong)(gong)、鈦合金(jin)(jin)零件加(jia)(jia)(jia)工(gong)(gong)(gong)、鋼材零件加(jia)(jia)(jia)工(gong)(gong)(gong)、鋁合金(jin)(jin)零件加(jia)(jia)(jia)工(gong)(gong)(gong)、鑄(zhu)件加(jia)(jia)(jia)工(gong)(gong)(gong)為公司(si)的主打產(chan)品，品質保障(zhang)，值得信(xin)賴(lai)！

一(yi)、五金零件加(jia)工精(jing)度根(gen)據(ju)不(bu)同的(de)加(jia)工精(jing)度內(nei)容(rong)以及精(jing)度要(yao)求(qiu)，采(cai)用不(bu)同的(de)測(ce)量方法(fa)(fa)。一(yi)般來說有以下幾(ji)類(lei)方法(fa)(fa)：

1、按是否直接測量(liang)被(bei)測參(can)數，可分為直接測量(liang)和間(jian)接測量(liang)。

2、按量(liang)具量(liang)儀(yi)的讀數(shu)值是(shi)否直接表示被測尺寸的數(shu)值，可(ke)分(fen)為(wei)絕(jue)對測量(liang)和相(xiang)對測量(liang)。

3、按被測(ce)表面與量(liang)具量(liang)儀(yi)的測(ce)量(liang)頭是否接(jie)觸，分為接(jie)觸測(ce)量(liang)和非(fei)接(jie)觸測(ce)量(liang)。

4、按一次測量(liang)(liang)參(can)數的多少，分為單項測量(liang)(liang)和綜合測量(liang)(liang)。

5、按測量(liang)(liang)在加(jia)工過程(cheng)中所起(qi)的作用(yong)，分為(wei)主動測量(liang)(liang)和被動測量(liang)(liang)。

6、按被測(ce)零件在測(ce)量(liang)(liang)過程中(zhong)所處的狀(zhuang)態(tai)，分為靜態(tai)測(ce)量(liang)(liang)和動態(tai)測(ce)量(liang)(liang)。

二、五金(jin)零件加工精度的相關內(nei)容：

1、尺寸精度：指加工(gong)后零件(jian)的實際(ji)尺寸與零件(jian)尺寸的公差帶中心的相符合(he)程度。

2、形狀精度：指(zhi)加(jia)工后(hou)的(de)零(ling)件(jian)表(biao)面的(de)實際(ji)幾何形狀與理想(xiang)的(de)幾何形狀的(de)相符合程度。

3、位(wei)置(zhi)精(jing)度：指加工(gong)后零(ling)件有關表面(mian)之間的實際位(wei)置(zhi)精(jing)度差別。

4、相互關系：通常(chang)在設計機器零件及規(gui)定零件加工精(jing)(jing)度(du)(du)時，應注(zhu)意將形(xing)(xing)狀誤(wu)差控制在位(wei)置公差內，位(wei)置誤(wu)差又應小于(yu)尺寸(cun)公差。即(ji)精(jing)(jing)密(mi)零件或零件重要(yao)表面，其形(xing)(xing)狀精(jing)(jing)度(du)(du)要(yao)求應高于(yu)位(wei)置精(jing)(jing)度(du)(du)要(yao)求，位(wei)置精(jing)(jing)度(du)(du)要(yao)求應高于(yu)尺寸(cun)精(jing)(jing)度(du)(du)要(yao)求。

五金零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)主(zhu)要用于生產產品程度(du)(du)，加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)與加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤差(cha)都是評價加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)表面幾何參數(shu)的(de)(de)術語。加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)用公差(cha)等(deng)級(ji)(ji)衡量，等(deng)級(ji)(ji)值(zhi)越小(xiao)，其(qi)精(jing)(jing)度(du)(du)越高(gao)；加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤差(cha)用數(shu)值(zhi)表示，數(shu)值(zhi)越大，其(qi)誤差(cha)越大。鈦浩機械是以機床主(zhu)軸(zhou)、回轉頂針、絲杠絲桿、軸(zhou)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、數(shu)控車床加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、刀(dao)柄刀(dao)桿、夾頭接桿為公司的(de)(de)主(zhu)打產品，加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)高(gao)，就是加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤差(cha)小(xiao)，反之(zhi)亦然(ran)。公差(cha)等(deng)級(ji)(ji)從IT01，IT0，IT1，IT2，IT3至IT18一共有(you)20個，其(qi)中(zhong)IT01表示的(de)(de)話該零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)最高(gao)的(de)(de)，IT18表示的(de)(de)話該零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)是最低的(de)(de) ，一般上IT7、IT8是加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精(jing)(jing)度(du)(du)中(zhong)等(deng)級(ji)(ji)別。

任何(he)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)方(fang)法所(suo)得到的(de)實際參(can)數(shu)都不會(hui)絕對準確，從零(ling)件(jian)的(de)功能看，只(zhi)要加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)(cha)在零(ling)件(jian)圖要求的(de)公差(cha)(cha)范圍(wei)內(nei)，就(jiu)認為(wei)保證了(le)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)。機(ji)器的(de)質(zhi)(zhi)量(liang)取決于零(ling)件(jian)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)量(liang)和機(ji)器的(de)裝(zhuang)配質(zhi)(zhi)量(liang)，零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)量(liang)包含(han)零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)和表面(mian)質(zhi)(zhi)量(liang)兩(liang)大(da)部分。機(ji)械加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)是指零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)后的(de)實際幾何(he)參(can)數(shu)（尺(chi)寸、形(xing)狀和位置）與理(li)想(xiang)幾何(he)參(can)數(shu)相(xiang)符合的(de)程度(du)(du)(du)。它們之間的(de)差(cha)(cha)異稱為(wei)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)(cha)。加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)(cha)的(de)大(da)小反映了(le)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)的(de)高低。誤(wu)(wu)差(cha)(cha)越(yue)(yue)大(da)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)越(yue)(yue)低，誤(wu)(wu)差(cha)(cha)越(yue)(yue)小加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)(du)越(yue)(yue)高。