五金零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)是(shi)加(jia)(jia)(jia)工(gong)(gong)(gong)后零件(jian)(jian)表(biao)面(mian)的(de)實(shi)際尺(chi)寸(cun)、形(xing)狀、位置三種幾何(he)(he)(he)參(can)(can)數(shu)與圖(tu)紙要求的(de)理想幾何(he)(he)(he)參(can)(can)數(shu)的(de)符合程(cheng)度(du)。理想的(de)幾何(he)(he)(he)參(can)(can)數(shu)，對(dui)(dui)(dui)尺(chi)寸(cun)而言(yan)(yan)，就(jiu)是(shi)平均(jun)尺(chi)寸(cun)；對(dui)(dui)(dui)表(biao)面(mian)幾何(he)(he)(he)形(xing)狀而言(yan)(yan)，就(jiu)是(shi)絕對(dui)(dui)(dui)的(de)圓、圓柱、平面(mian)、錐(zhui)面(mian)和直線等(deng)；對(dui)(dui)(dui)表(biao)面(mian)之間的(de)相互(hu)位置而言(yan)(yan)，就(jiu)是(shi)絕對(dui)(dui)(dui)的(de)平行、垂直、同軸、對(dui)(dui)(dui)稱(cheng)等(deng)。零件(jian)(jian)實(shi)際幾何(he)(he)(he)參(can)(can)數(shu)與理想幾何(he)(he)(he)參(can)(can)數(shu)的(de)偏離數(shu)值稱(cheng)為(wei)加(jia)(jia)(jia)工(gong)(gong)(gong)誤(wu)差。博(bo)鑫(xin)精(jing)密(mi)是(shi)以不銹鋼零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)、鈦合金零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)、鋼材零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)、鋁合金零件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)、鑄件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)為(wei)公司(si)的(de)主打(da)產品，品質(zhi)保(bao)障，值得信賴！

一、五(wu)金零件加(jia)工精度根據不(bu)同的加(jia)工精度內容以及精度要求，采用不(bu)同的測量方法。一般來說(shuo)有以下幾類方法：

1、按是否直接測(ce)(ce)量(liang)被測(ce)(ce)參數，可(ke)分(fen)為直接測(ce)(ce)量(liang)和間接測(ce)(ce)量(liang)。

2、按(an)量具量儀的讀數(shu)值是否直接表示(shi)被測(ce)(ce)尺寸的數(shu)值，可分為(wei)絕對測(ce)(ce)量和相(xiang)對測(ce)(ce)量。

3、按(an)被測(ce)表面與量(liang)(liang)具量(liang)(liang)儀的(de)測(ce)量(liang)(liang)頭是否接(jie)觸，分為接(jie)觸測(ce)量(liang)(liang)和非接(jie)觸測(ce)量(liang)(liang)。

4、按一(yi)次測(ce)量(liang)參數的多(duo)少，分(fen)為單項(xiang)測(ce)量(liang)和(he)綜合測(ce)量(liang)。

5、按測(ce)(ce)量(liang)(liang)在加工(gong)過程中所起的作(zuo)用，分(fen)為主動(dong)測(ce)(ce)量(liang)(liang)和被動(dong)測(ce)(ce)量(liang)(liang)。

6、按被測(ce)零(ling)件在(zai)測(ce)量過程中所處的狀(zhuang)態，分為靜態測(ce)量和動態測(ce)量。

二、五金(jin)零件(jian)加工精度的相(xiang)關內容：

1、尺寸精度：指加工后零件(jian)的(de)實際尺寸與零件(jian)尺寸的(de)公差帶(dai)中心的(de)相符合程度。

2、形(xing)狀(zhuang)精度(du)：指加(jia)工后的(de)零件(jian)表(biao)面(mian)的(de)實(shi)際幾何形(xing)狀(zhuang)與理想的(de)幾何形(xing)狀(zhuang)的(de)相符合程度(du)。

3、位置精(jing)度：指加工后(hou)零(ling)件(jian)有關(guan)表(biao)面之(zhi)間(jian)的(de)實際位置精(jing)度差別。

4、相互(hu)關系：通常在設計機器(qi)零件及規定零件加工精(jing)度時，應(ying)注意將形狀誤(wu)差控(kong)制(zhi)在位(wei)置(zhi)(zhi)公差內，位(wei)置(zhi)(zhi)誤(wu)差又應(ying)小于尺寸公差。即精(jing)密零件或(huo)零件重要表面，其形狀精(jing)度要求(qiu)應(ying)高于位(wei)置(zhi)(zhi)精(jing)度要求(qiu)，位(wei)置(zhi)(zhi)精(jing)度要求(qiu)應(ying)高于尺寸精(jing)度要求(qiu)。

五金零件加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)主(zhu)要用(yong)(yong)于(yu)生產(chan)產(chan)品程(cheng)度(du)，加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)與加(jia)工(gong)(gong)(gong)(gong)誤差都(dou)是評價(jia)加(jia)工(gong)(gong)(gong)(gong)表(biao)(biao)面幾(ji)何參數(shu)的(de)術(shu)語。加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)用(yong)(yong)公(gong)差等級衡量，等級值越(yue)小，其(qi)精(jing)(jing)度(du)越(yue)高(gao)；加(jia)工(gong)(gong)(gong)(gong)誤差用(yong)(yong)數(shu)值表(biao)(biao)示，數(shu)值越(yue)大(da)，其(qi)誤差越(yue)大(da)。鈦浩機械是以機床(chuang)主(zhu)軸(zhou)、回轉頂針、絲(si)(si)杠(gang)絲(si)(si)桿、軸(zhou)加(jia)工(gong)(gong)(gong)(gong)、數(shu)控車床(chuang)加(jia)工(gong)(gong)(gong)(gong)、刀柄刀桿、夾頭(tou)接桿為公(gong)司的(de)主(zhu)打產(chan)品，加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)高(gao)，就是加(jia)工(gong)(gong)(gong)(gong)誤差小，反(fan)之亦然。公(gong)差等級從(cong)IT01，IT0，IT1，IT2，IT3至IT18一共有20個，其(qi)中IT01表(biao)(biao)示的(de)話(hua)該(gai)零件加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)最高(gao)的(de)，IT18表(biao)(biao)示的(de)話(hua)該(gai)零件加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)是最低(di)的(de) ，一般上IT7、IT8是加(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)度(du)中等級別。

任何加(jia)(jia)工(gong)(gong)方法所得到的實際(ji)參(can)數(shu)都不會絕(jue)對(dui)準確，從零件(jian)(jian)的功(gong)能(neng)看，只(zhi)要(yao)加(jia)(jia)工(gong)(gong)誤差(cha)(cha)在(zai)零件(jian)(jian)圖(tu)要(yao)求的公差(cha)(cha)范圍內，就認(ren)為(wei)保證了加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)。機(ji)器的質量(liang)取決于零件(jian)(jian)的加(jia)(jia)工(gong)(gong)質量(liang)和機(ji)器的裝配質量(liang)，零件(jian)(jian)加(jia)(jia)工(gong)(gong)質量(liang)包(bao)含零件(jian)(jian)加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)和表(biao)面質量(liang)兩大部(bu)分。機(ji)械(xie)加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)是指(zhi)零件(jian)(jian)加(jia)(jia)工(gong)(gong)后的實際(ji)幾何參(can)數(shu)（尺(chi)寸、形狀和位置）與理想幾何參(can)數(shu)相符(fu)合的程度(du)。它們之(zhi)間(jian)的差(cha)(cha)異(yi)稱(cheng)為(wei)加(jia)(jia)工(gong)(gong)誤差(cha)(cha)。加(jia)(jia)工(gong)(gong)誤差(cha)(cha)的大小反映了加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)的高(gao)低。誤差(cha)(cha)越(yue)大加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)越(yue)低，誤差(cha)(cha)越(yue)小加(jia)(jia)工(gong)(gong)精(jing)(jing)度(du)越(yue)高(gao)。