五金零件(jian)(jian)加工(gong)精度是(shi)加工(gong)后零件(jian)(jian)表面(mian)(mian)的(de)實際(ji)尺(chi)寸、形狀、位(wei)置(zhi)三種(zhong)幾(ji)何(he)參(can)數與圖紙要求的(de)理(li)想(xiang)幾(ji)何(he)參(can)數的(de)符合(he)程度。理(li)想(xiang)的(de)幾(ji)何(he)參(can)數，對(dui)尺(chi)寸而(er)言，就是(shi)平均尺(chi)寸；對(dui)表面(mian)(mian)幾(ji)何(he)形狀而(er)言，就是(shi)絕對(dui)的(de)圓、圓柱、平面(mian)(mian)、錐(zhui)面(mian)(mian)和直線(xian)等(deng)(deng)；對(dui)表面(mian)(mian)之(zhi)間的(de)相互位(wei)置(zhi)而(er)言，就是(shi)絕對(dui)的(de)平行、垂直、同(tong)軸、對(dui)稱(cheng)等(deng)(deng)。零件(jian)(jian)實際(ji)幾(ji)何(he)參(can)數與理(li)想(xiang)幾(ji)何(he)參(can)數的(de)偏離數值稱(cheng)為加工(gong)誤(wu)差(cha)。博鑫精密是(shi)以不銹鋼零件(jian)(jian)加工(gong)、鈦合(he)金零件(jian)(jian)加工(gong)、鋼材(cai)零件(jian)(jian)加工(gong)、鋁合(he)金零件(jian)(jian)加工(gong)、鑄件(jian)(jian)加工(gong)為公司的(de)主打產品，品質保障，值得信賴(lai)！

一(yi)、五(wu)金(jin)零件(jian)加工精(jing)度(du)根據不同的加工精(jing)度(du)內容以及精(jing)度(du)要求，采用不同的測量方(fang)法。一(yi)般來說(shuo)有以下幾類(lei)方(fang)法：

1、按(an)是(shi)否(fou)直(zhi)(zhi)接測量被測參(can)數，可分為直(zhi)(zhi)接測量和間接測量。

2、按量具量儀的(de)讀(du)數(shu)值是否直接表示被測尺(chi)寸的(de)數(shu)值，可分為(wei)絕對測量和相對測量。

3、按被測(ce)表面與量(liang)具(ju)量(liang)儀的測(ce)量(liang)頭是否接觸，分為接觸測(ce)量(liang)和非接觸測(ce)量(liang)。

4、按一次測量參數的多少(shao)，分(fen)為單項測量和綜合測量。

5、按測量(liang)在加工過程中(zhong)所(suo)起(qi)的作(zuo)用，分為(wei)主(zhu)動測量(liang)和被(bei)動測量(liang)。

6、按被測零件(jian)在測量過程中(zhong)所處(chu)的狀態(tai)，分為靜(jing)態(tai)測量和動態(tai)測量。

二、五金零件加工精(jing)度的相關(guan)內容(rong)：

1、尺(chi)寸(cun)精度：指加工后零件的實(shi)際尺(chi)寸(cun)與零件尺(chi)寸(cun)的公差帶中心的相符合程(cheng)度。

2、形(xing)狀精(jing)度：指(zhi)加工后的零件表面(mian)的實際幾何形(xing)狀與理想的幾何形(xing)狀的相符合(he)程度。

3、位置(zhi)精(jing)度(du)：指加工后零件(jian)有關表面之間的(de)實際(ji)位置(zhi)精(jing)度(du)差別。

4、相互(hu)關系：通常在設計(ji)機器零(ling)件及規定零(ling)件加工(gong)精(jing)度(du)時，應(ying)(ying)注意將形狀誤(wu)差(cha)(cha)控制在位(wei)(wei)(wei)置(zhi)(zhi)公(gong)差(cha)(cha)內(nei)，位(wei)(wei)(wei)置(zhi)(zhi)誤(wu)差(cha)(cha)又應(ying)(ying)小于尺(chi)寸(cun)公(gong)差(cha)(cha)。即精(jing)密零(ling)件或(huo)零(ling)件重要表(biao)面，其形狀精(jing)度(du)要求(qiu)應(ying)(ying)高于位(wei)(wei)(wei)置(zhi)(zhi)精(jing)度(du)要求(qiu)，位(wei)(wei)(wei)置(zhi)(zhi)精(jing)度(du)要求(qiu)應(ying)(ying)高于尺(chi)寸(cun)精(jing)度(du)要求(qiu)。

五金零(ling)件加工(gong)(gong)(gong)(gong)精(jing)度(du)主(zhu)要用于生產(chan)產(chan)品(pin)程度(du)，加工(gong)(gong)(gong)(gong)精(jing)度(du)與加工(gong)(gong)(gong)(gong)誤(wu)差(cha)都是(shi)評價(jia)加工(gong)(gong)(gong)(gong)表(biao)面幾何參數(shu)(shu)(shu)的(de)(de)(de)術語(yu)。加工(gong)(gong)(gong)(gong)精(jing)度(du)用公(gong)(gong)差(cha)等級衡量(liang)，等級值(zhi)越(yue)小，其(qi)精(jing)度(du)越(yue)高；加工(gong)(gong)(gong)(gong)誤(wu)差(cha)用數(shu)(shu)(shu)值(zhi)表(biao)示，數(shu)(shu)(shu)值(zhi)越(yue)大(da)，其(qi)誤(wu)差(cha)越(yue)大(da)。鈦浩機械是(shi)以機床主(zhu)軸、回轉頂針、絲杠絲桿(gan)(gan)、軸加工(gong)(gong)(gong)(gong)、數(shu)(shu)(shu)控車床加工(gong)(gong)(gong)(gong)、刀柄刀桿(gan)(gan)、夾(jia)頭接桿(gan)(gan)為公(gong)(gong)司的(de)(de)(de)主(zhu)打產(chan)品(pin)，加工(gong)(gong)(gong)(gong)精(jing)度(du)高，就是(shi)加工(gong)(gong)(gong)(gong)誤(wu)差(cha)小，反之亦(yi)然(ran)。公(gong)(gong)差(cha)等級從IT01，IT0，IT1，IT2，IT3至IT18一共有20個，其(qi)中(zhong)IT01表(biao)示的(de)(de)(de)話(hua)該零(ling)件加工(gong)(gong)(gong)(gong)精(jing)度(du)最高的(de)(de)(de)，IT18表(biao)示的(de)(de)(de)話(hua)該零(ling)件加工(gong)(gong)(gong)(gong)精(jing)度(du)是(shi)最低的(de)(de)(de) ，一般上(shang)IT7、IT8是(shi)加工(gong)(gong)(gong)(gong)精(jing)度(du)中(zhong)等級別。

任(ren)何(he)加(jia)(jia)工(gong)(gong)方法(fa)所得到的(de)(de)(de)(de)(de)實際參數(shu)都不會(hui)絕對準確，從(cong)零(ling)件(jian)(jian)的(de)(de)(de)(de)(de)功能看，只要(yao)(yao)加(jia)(jia)工(gong)(gong)誤(wu)差在零(ling)件(jian)(jian)圖要(yao)(yao)求的(de)(de)(de)(de)(de)公差范圍內，就認為保(bao)證了加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)。機(ji)(ji)器的(de)(de)(de)(de)(de)質(zhi)量(liang)(liang)取決于零(ling)件(jian)(jian)的(de)(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)質(zhi)量(liang)(liang)和機(ji)(ji)器的(de)(de)(de)(de)(de)裝配(pei)質(zhi)量(liang)(liang)，零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)質(zhi)量(liang)(liang)包含零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)和表(biao)面質(zhi)量(liang)(liang)兩大部分。機(ji)(ji)械加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)是指零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)后的(de)(de)(de)(de)(de)實際幾(ji)(ji)何(he)參數(shu)（尺寸、形狀和位(wei)置）與(yu)理想幾(ji)(ji)何(he)參數(shu)相(xiang)符(fu)合的(de)(de)(de)(de)(de)程度(du)(du)(du)。它們之(zhi)間的(de)(de)(de)(de)(de)差異(yi)稱為加(jia)(jia)工(gong)(gong)誤(wu)差。加(jia)(jia)工(gong)(gong)誤(wu)差的(de)(de)(de)(de)(de)大小反映了加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)的(de)(de)(de)(de)(de)高低。誤(wu)差越大加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)越低，誤(wu)差越小加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)(du)(du)越高。