五(wu)金(jin)零(ling)件(jian)加(jia)(jia)(jia)(jia)工(gong)精(jing)度是(shi)(shi)加(jia)(jia)(jia)(jia)工(gong)后零(ling)件(jian)表面(mian)的(de)(de)實(shi)際(ji)尺寸(cun)(cun)、形狀(zhuang)、位(wei)置三(san)種幾(ji)(ji)何(he)參(can)數(shu)(shu)(shu)(shu)與(yu)圖紙要求的(de)(de)理想幾(ji)(ji)何(he)參(can)數(shu)(shu)(shu)(shu)的(de)(de)符合(he)程度。理想的(de)(de)幾(ji)(ji)何(he)參(can)數(shu)(shu)(shu)(shu)，對(dui)(dui)尺寸(cun)(cun)而(er)言(yan)，就是(shi)(shi)平均尺寸(cun)(cun)；對(dui)(dui)表面(mian)幾(ji)(ji)何(he)形狀(zhuang)而(er)言(yan)，就是(shi)(shi)絕對(dui)(dui)的(de)(de)圓、圓柱、平面(mian)、錐(zhui)面(mian)和直線等；對(dui)(dui)表面(mian)之間的(de)(de)相(xiang)互位(wei)置而(er)言(yan)，就是(shi)(shi)絕對(dui)(dui)的(de)(de)平行、垂直、同軸、對(dui)(dui)稱等。零(ling)件(jian)實(shi)際(ji)幾(ji)(ji)何(he)參(can)數(shu)(shu)(shu)(shu)與(yu)理想幾(ji)(ji)何(he)參(can)數(shu)(shu)(shu)(shu)的(de)(de)偏(pian)離數(shu)(shu)(shu)(shu)值稱為加(jia)(jia)(jia)(jia)工(gong)誤差(cha)。博鑫(xin)精(jing)密是(shi)(shi)以不銹鋼(gang)零(ling)件(jian)加(jia)(jia)(jia)(jia)工(gong)、鈦合(he)金(jin)零(ling)件(jian)加(jia)(jia)(jia)(jia)工(gong)、鋼(gang)材零(ling)件(jian)加(jia)(jia)(jia)(jia)工(gong)、鋁合(he)金(jin)零(ling)件(jian)加(jia)(jia)(jia)(jia)工(gong)、鑄件(jian)加(jia)(jia)(jia)(jia)工(gong)為公司的(de)(de)主(zhu)打產品，品質(zhi)保障，值得信賴！

一(yi)、五金零件加工精(jing)(jing)(jing)度(du)根(gen)據不同(tong)(tong)的(de)加工精(jing)(jing)(jing)度(du)內容以(yi)(yi)及精(jing)(jing)(jing)度(du)要求，采用(yong)不同(tong)(tong)的(de)測量方法(fa)。一(yi)般來說有以(yi)(yi)下幾類(lei)方法(fa)：

1、按是(shi)否直(zhi)接測(ce)量(liang)被測(ce)參(can)數，可分為直(zhi)接測(ce)量(liang)和間(jian)接測(ce)量(liang)。

2、按量具量儀的讀數值(zhi)是否(fou)直接(jie)表示被測尺寸(cun)的數值(zhi)，可(ke)分為絕對測量和相對測量。

3、按(an)被測表面與量(liang)具(ju)量(liang)儀的測量(liang)頭是否接(jie)觸，分為(wei)接(jie)觸測量(liang)和非接(jie)觸測量(liang)。

4、按一(yi)次測量參數的多少(shao)，分為單(dan)項測量和綜(zong)合(he)測量。

5、按(an)測量(liang)(liang)在加工過(guo)程(cheng)中所起(qi)的作用，分為主動(dong)測量(liang)(liang)和被動(dong)測量(liang)(liang)。

6、按被測(ce)(ce)零件在(zai)測(ce)(ce)量(liang)(liang)過程中所(suo)處的狀態(tai)，分為靜態(tai)測(ce)(ce)量(liang)(liang)和動態(tai)測(ce)(ce)量(liang)(liang)。

二、五金(jin)零件加工(gong)精度的相關內容：

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

2、形(xing)狀(zhuang)(zhuang)精度：指(zhi)加(jia)工(gong)后的零件表面的實際幾(ji)何(he)形(xing)狀(zhuang)(zhuang)與(yu)理想的幾(ji)何(he)形(xing)狀(zhuang)(zhuang)的相符合程度。

3、位(wei)(wei)置精(jing)度：指(zhi)加(jia)工(gong)后零件有關表面(mian)之(zhi)間的實際位(wei)(wei)置精(jing)度差(cha)別。

4、相互關(guan)系：通常在設(she)計機器零(ling)件(jian)(jian)及(ji)規定零(ling)件(jian)(jian)加工(gong)精(jing)度時，應注(zhu)意將形(xing)狀誤差(cha)控制(zhi)在位置(zhi)公(gong)差(cha)內，位置(zhi)誤差(cha)又應小于尺寸公(gong)差(cha)。即精(jing)密(mi)零(ling)件(jian)(jian)或零(ling)件(jian)(jian)重要表面，其(qi)形(xing)狀精(jing)度要求(qiu)(qiu)應高(gao)于位置(zhi)精(jing)度要求(qiu)(qiu)，位置(zhi)精(jing)度要求(qiu)(qiu)應高(gao)于尺寸精(jing)度要求(qiu)(qiu)。

五金(jin)零件(jian)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)主要用于生產產品程(cheng)度(du)，加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)與加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)誤差(cha)(cha)(cha)(cha)都(dou)是評價(jia)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)表面幾何參數的術語(yu)。加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)用公差(cha)(cha)(cha)(cha)等(deng)級(ji)(ji)衡量(liang)，等(deng)級(ji)(ji)值越(yue)小，其(qi)精(jing)(jing)(jing)度(du)越(yue)高；加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)誤差(cha)(cha)(cha)(cha)用數值表示，數值越(yue)大，其(qi)誤差(cha)(cha)(cha)(cha)越(yue)大。鈦浩(hao)機械是以機床主軸、回(hui)轉頂針、絲杠絲桿(gan)、軸加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、數控車床加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、刀柄(bing)刀桿(gan)、夾頭接桿(gan)為公司(si)的主打產品，加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)高，就是加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)誤差(cha)(cha)(cha)(cha)小，反之亦(yi)然。公差(cha)(cha)(cha)(cha)等(deng)級(ji)(ji)從IT01，IT0，IT1，IT2，IT3至IT18一共有20個，其(qi)中IT01表示的話(hua)該零件(jian)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)最高的，IT18表示的話(hua)該零件(jian)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)是最低的 ，一般上IT7、IT8是加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)(jing)(jing)度(du)中等(deng)級(ji)(ji)別(bie)。

任何加(jia)(jia)工(gong)(gong)(gong)(gong)方(fang)法所得(de)到(dao)的(de)(de)實際參數都不會絕對準確，從零(ling)(ling)件(jian)的(de)(de)功能看(kan)，只(zhi)要加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)在零(ling)(ling)件(jian)圖要求(qiu)的(de)(de)公差(cha)(cha)范圍(wei)內，就認為(wei)保證(zheng)了(le)(le)加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)。機器(qi)的(de)(de)質(zhi)量(liang)(liang)取決(jue)于零(ling)(ling)件(jian)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)質(zhi)量(liang)(liang)和(he)機器(qi)的(de)(de)裝配質(zhi)量(liang)(liang)，零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)質(zhi)量(liang)(liang)包含零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)和(he)表(biao)面質(zhi)量(liang)(liang)兩大(da)部分。機械加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)是指零(ling)(ling)件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)后的(de)(de)實際幾何參數（尺寸、形狀和(he)位置(zhi)）與理想幾何參數相符合的(de)(de)程度(du)。它們之間(jian)的(de)(de)差(cha)(cha)異稱(cheng)為(wei)加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)。加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)的(de)(de)大(da)小(xiao)反映了(le)(le)加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)的(de)(de)高(gao)低。誤(wu)差(cha)(cha)越(yue)大(da)加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)越(yue)低，誤(wu)差(cha)(cha)越(yue)小(xiao)加(jia)(jia)工(gong)(gong)(gong)(gong)精度(du)越(yue)高(gao)。