五金(jin)零件(jian)加(jia)(jia)(jia)工(gong)精度(du)是加(jia)(jia)(jia)工(gong)后零件(jian)表(biao)面(mian)的(de)實際尺寸(cun)、形狀(zhuang)、位置三種幾何(he)參(can)數(shu)(shu)與(yu)(yu)圖紙要(yao)求的(de)理(li)想幾何(he)參(can)數(shu)(shu)的(de)符合程(cheng)度(du)。理(li)想的(de)幾何(he)參(can)數(shu)(shu)，對尺寸(cun)而(er)言，就是平均尺寸(cun)；對表(biao)面(mian)幾何(he)形狀(zhuang)而(er)言，就是絕(jue)對的(de)圓(yuan)、圓(yuan)柱、平面(mian)、錐面(mian)和直(zhi)(zhi)線等；對表(biao)面(mian)之間的(de)相互位置而(er)言，就是絕(jue)對的(de)平行(xing)、垂直(zhi)(zhi)、同軸、對稱等。零件(jian)實際幾何(he)參(can)數(shu)(shu)與(yu)(yu)理(li)想幾何(he)參(can)數(shu)(shu)的(de)偏離(li)數(shu)(shu)值稱為(wei)加(jia)(jia)(jia)工(gong)誤差(cha)。博鑫(xin)精密是以不銹鋼零件(jian)加(jia)(jia)(jia)工(gong)、鈦(tai)合金(jin)零件(jian)加(jia)(jia)(jia)工(gong)、鋼材(cai)零件(jian)加(jia)(jia)(jia)工(gong)、鋁合金(jin)零件(jian)加(jia)(jia)(jia)工(gong)、鑄(zhu)件(jian)加(jia)(jia)(jia)工(gong)為(wei)公司的(de)主打產品，品質保障，值得信賴(lai)！

一、五金零件加工精度根據不(bu)同的加工精度內容(rong)以及精度要求，采用不(bu)同的測量方法。一般來說有以下(xia)幾(ji)類方法：

1、按是否直(zhi)接測(ce)(ce)量(liang)被(bei)測(ce)(ce)參(can)數，可分(fen)為(wei)直(zhi)接測(ce)(ce)量(liang)和間(jian)接測(ce)(ce)量(liang)。

2、按(an)量(liang)具量(liang)儀的讀數值是(shi)否直接表示(shi)被(bei)測尺寸的數值，可分為絕對測量(liang)和相對測量(liang)。

3、按被測表面(mian)與量(liang)具量(liang)儀的測量(liang)頭(tou)是否(fou)接(jie)觸(chu)，分為(wei)接(jie)觸(chu)測量(liang)和非接(jie)觸(chu)測量(liang)。

4、按(an)一(yi)次測量(liang)參數(shu)的多少，分為單項測量(liang)和綜(zong)合(he)測量(liang)。

5、按測量在加工過程中所起的(de)作用(yong)，分(fen)為(wei)主(zhu)動測量和被動測量。

6、按被測零件(jian)在測量過程中(zhong)所處的狀態，分為(wei)靜態測量和(he)動態測量。

二、五金零件加工(gong)精度的相關(guan)內(nei)容(rong)：

1、尺寸精度(du)：指加(jia)工后零(ling)件(jian)的實際(ji)尺寸與零(ling)件(jian)尺寸的公差帶(dai)中心的相符合(he)程(cheng)度(du)。

2、形狀精度：指加工(gong)后的零件(jian)表面的實際幾何(he)形狀與理想(xiang)的幾何(he)形狀的相符(fu)合程(cheng)度。

3、位(wei)置(zhi)精度：指(zhi)加工后零件有關(guan)表面(mian)之間(jian)的實際位(wei)置(zhi)精度差(cha)別。

4、相互關系(xi)：通常在(zai)設計機器(qi)零件(jian)(jian)(jian)及規定零件(jian)(jian)(jian)加工精(jing)度(du)(du)(du)(du)時，應注意(yi)將形(xing)狀(zhuang)誤差控(kong)制在(zai)位(wei)置(zhi)公差內，位(wei)置(zhi)誤差又應小于尺(chi)寸(cun)公差。即精(jing)密零件(jian)(jian)(jian)或零件(jian)(jian)(jian)重要(yao)表面，其形(xing)狀(zhuang)精(jing)度(du)(du)(du)(du)要(yao)求應高(gao)于位(wei)置(zhi)精(jing)度(du)(du)(du)(du)要(yao)求，位(wei)置(zhi)精(jing)度(du)(du)(du)(du)要(yao)求應高(gao)于尺(chi)寸(cun)精(jing)度(du)(du)(du)(du)要(yao)求。

五金零件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)主(zhu)要用于(yu)生產(chan)產(chan)品程(cheng)度(du)，加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)與加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)都是評價加(jia)(jia)工(gong)(gong)(gong)(gong)表(biao)面(mian)幾(ji)何參數的術(shu)語。加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)用公(gong)差(cha)等(deng)(deng)級衡(heng)量，等(deng)(deng)級值(zhi)越小，其(qi)(qi)精(jing)(jing)度(du)越高；加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)用數值(zhi)表(biao)示，數值(zhi)越大(da)，其(qi)(qi)誤(wu)(wu)差(cha)越大(da)。鈦浩機械是以機床(chuang)主(zhu)軸、回(hui)轉頂針、絲杠絲桿(gan)、軸加(jia)(jia)工(gong)(gong)(gong)(gong)、數控車(che)床(chuang)加(jia)(jia)工(gong)(gong)(gong)(gong)、刀柄(bing)刀桿(gan)、夾頭接桿(gan)為公(gong)司的主(zhu)打(da)產(chan)品，加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)高，就是加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)(wu)差(cha)小，反之(zhi)亦然。公(gong)差(cha)等(deng)(deng)級從IT01，IT0，IT1，IT2，IT3至(zhi)IT18一共有20個，其(qi)(qi)中(zhong)IT01表(biao)示的話(hua)該(gai)零件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)最高的，IT18表(biao)示的話(hua)該(gai)零件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)是最低的 ，一般上(shang)IT7、IT8是加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)中(zhong)等(deng)(deng)級別。

任何加(jia)工(gong)(gong)(gong)方法(fa)所得到的(de)(de)(de)(de)(de)(de)(de)實際參數(shu)(shu)都(dou)不會絕對準確，從(cong)零(ling)件(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)功能看，只要(yao)加(jia)工(gong)(gong)(gong)誤差(cha)在零(ling)件(jian)(jian)圖(tu)要(yao)求的(de)(de)(de)(de)(de)(de)(de)公差(cha)范圍內，就(jiu)認為(wei)保證了(le)加(jia)工(gong)(gong)(gong)精(jing)度(du)。機(ji)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)質量(liang)(liang)取決(jue)于(yu)零(ling)件(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)加(jia)工(gong)(gong)(gong)質量(liang)(liang)和機(ji)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)裝(zhuang)配質量(liang)(liang)，零(ling)件(jian)(jian)加(jia)工(gong)(gong)(gong)質量(liang)(liang)包含零(ling)件(jian)(jian)加(jia)工(gong)(gong)(gong)精(jing)度(du)和表(biao)面質量(liang)(liang)兩(liang)大部(bu)分(fen)。機(ji)械加(jia)工(gong)(gong)(gong)精(jing)度(du)是指零(ling)件(jian)(jian)加(jia)工(gong)(gong)(gong)后的(de)(de)(de)(de)(de)(de)(de)實際幾(ji)(ji)何參數(shu)(shu)（尺寸(cun)、形狀和位置）與理想幾(ji)(ji)何參數(shu)(shu)相符合的(de)(de)(de)(de)(de)(de)(de)程度(du)。它們之間(jian)的(de)(de)(de)(de)(de)(de)(de)差(cha)異稱為(wei)加(jia)工(gong)(gong)(gong)誤差(cha)。加(jia)工(gong)(gong)(gong)誤差(cha)的(de)(de)(de)(de)(de)(de)(de)大小(xiao)反映(ying)了(le)加(jia)工(gong)(gong)(gong)精(jing)度(du)的(de)(de)(de)(de)(de)(de)(de)高低。誤差(cha)越大加(jia)工(gong)(gong)(gong)精(jing)度(du)越低，誤差(cha)越小(xiao)加(jia)工(gong)(gong)(gong)精(jing)度(du)越高。