五金零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度是(shi)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)后(hou)零(ling)件(jian)(jian)表面(mian)的(de)(de)(de)實際(ji)尺寸(cun)、形(xing)狀(zhuang)、位(wei)置三種幾(ji)(ji)何(he)參(can)數與圖紙(zhi)要求的(de)(de)(de)理(li)(li)想(xiang)幾(ji)(ji)何(he)參(can)數的(de)(de)(de)符(fu)合(he)程(cheng)度。理(li)(li)想(xiang)的(de)(de)(de)幾(ji)(ji)何(he)參(can)數，對尺寸(cun)而言，就是(shi)平(ping)均尺寸(cun)；對表面(mian)幾(ji)(ji)何(he)形(xing)狀(zhuang)而言，就是(shi)絕(jue)(jue)對的(de)(de)(de)圓(yuan)、圓(yuan)柱、平(ping)面(mian)、錐面(mian)和直(zhi)線等(deng)；對表面(mian)之間的(de)(de)(de)相互位(wei)置而言，就是(shi)絕(jue)(jue)對的(de)(de)(de)平(ping)行、垂直(zhi)、同軸、對稱(cheng)等(deng)。零(ling)件(jian)(jian)實際(ji)幾(ji)(ji)何(he)參(can)數與理(li)(li)想(xiang)幾(ji)(ji)何(he)參(can)數的(de)(de)(de)偏離數值稱(cheng)為加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤差。博鑫精密(mi)是(shi)以不銹鋼零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、鈦合(he)金零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、鋼材(cai)零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、鋁合(he)金零(ling)件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)、鑄件(jian)(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)為公司(si)的(de)(de)(de)主打產品，品質保障，值得信賴！

一(yi)、五金零件加(jia)(jia)工精度根據(ju)不(bu)同的加(jia)(jia)工精度內容以(yi)及精度要求，采(cai)用不(bu)同的測量方(fang)法。一(yi)般來(lai)說(shuo)有以(yi)下(xia)幾類方(fang)法：

1、按是否直接(jie)測量被測參數(shu)，可分為直接(jie)測量和間接(jie)測量。

2、按量具量儀的讀數值(zhi)是否直接表示被測(ce)尺寸的數值(zhi)，可分為絕對(dui)測(ce)量和相對(dui)測(ce)量。

3、按(an)被測(ce)表面(mian)與量(liang)具量(liang)儀的測(ce)量(liang)頭是(shi)否接(jie)觸(chu)，分為接(jie)觸(chu)測(ce)量(liang)和非接(jie)觸(chu)測(ce)量(liang)。

4、按(an)一次測(ce)量(liang)參數(shu)的多(duo)少，分為單項(xiang)測(ce)量(liang)和綜合測(ce)量(liang)。

5、按(an)測(ce)(ce)量(liang)(liang)在(zai)加工過(guo)程中所起的作用，分為主動測(ce)(ce)量(liang)(liang)和(he)被動測(ce)(ce)量(liang)(liang)。

6、按被測(ce)零件在測(ce)量(liang)過程(cheng)中所處的狀態(tai)，分(fen)為(wei)靜(jing)態(tai)測(ce)量(liang)和動(dong)態(tai)測(ce)量(liang)。

二、五金零(ling)件加工精(jing)度的相關內容：

1、尺寸精度(du)：指加工后(hou)零件的實(shi)際尺寸與零件尺寸的公差帶中心的相符合程(cheng)度(du)。

2、形(xing)狀精度：指加工后的(de)零件(jian)表面(mian)的(de)實際幾何形(xing)狀與(yu)理想(xiang)的(de)幾何形(xing)狀的(de)相符合程(cheng)度。

3、位置(zhi)精(jing)度：指(zhi)加工后零(ling)件有關表面之間(jian)的實際位置(zhi)精(jing)度差別(bie)。

4、相互關(guan)系：通常在設計機(ji)器零(ling)件(jian)(jian)及規定(ding)零(ling)件(jian)(jian)加(jia)工精(jing)度(du)時，應(ying)注意將形(xing)狀(zhuang)誤差控制在位(wei)置公(gong)差內，位(wei)置誤差又應(ying)小于(yu)尺寸公(gong)差。即精(jing)密零(ling)件(jian)(jian)或零(ling)件(jian)(jian)重(zhong)要表面，其形(xing)狀(zhuang)精(jing)度(du)要求(qiu)應(ying)高(gao)于(yu)位(wei)置精(jing)度(du)要求(qiu)，位(wei)置精(jing)度(du)要求(qiu)應(ying)高(gao)于(yu)尺寸精(jing)度(du)要求(qiu)。

五金(jin)零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)主(zhu)要用(yong)于生產產品(pin)程度(du)(du)，加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)與加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)都是(shi)評價加(jia)(jia)工(gong)(gong)(gong)(gong)表(biao)面(mian)幾何參數的(de)(de)術語。加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)用(yong)公(gong)(gong)差(cha)(cha)等(deng)級衡量，等(deng)級值(zhi)越(yue)(yue)小(xiao)，其精(jing)(jing)(jing)度(du)(du)越(yue)(yue)高；加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)用(yong)數值(zhi)表(biao)示，數值(zhi)越(yue)(yue)大，其誤(wu)差(cha)(cha)越(yue)(yue)大。鈦(tai)浩機(ji)械是(shi)以機(ji)床主(zhu)軸、回轉頂針、絲杠絲桿(gan)(gan)、軸加(jia)(jia)工(gong)(gong)(gong)(gong)、數控車床加(jia)(jia)工(gong)(gong)(gong)(gong)、刀柄刀桿(gan)(gan)、夾頭接桿(gan)(gan)為公(gong)(gong)司的(de)(de)主(zhu)打產品(pin)，加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)高，就是(shi)加(jia)(jia)工(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)小(xiao)，反之亦(yi)然。公(gong)(gong)差(cha)(cha)等(deng)級從IT01，IT0，IT1，IT2，IT3至(zhi)IT18一(yi)共有20個，其中(zhong)IT01表(biao)示的(de)(de)話該零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)最高的(de)(de)，IT18表(biao)示的(de)(de)話該零(ling)件加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)是(shi)最低(di)的(de)(de) ，一(yi)般上IT7、IT8是(shi)加(jia)(jia)工(gong)(gong)(gong)(gong)精(jing)(jing)(jing)度(du)(du)中(zhong)等(deng)級別。

任何(he)加(jia)(jia)(jia)工(gong)(gong)方法所得到的(de)(de)(de)實際參數都不(bu)會絕對(dui)準(zhun)確，從零(ling)(ling)件(jian)(jian)的(de)(de)(de)功(gong)能看，只要加(jia)(jia)(jia)工(gong)(gong)誤(wu)(wu)差(cha)(cha)在(zai)零(ling)(ling)件(jian)(jian)圖要求的(de)(de)(de)公差(cha)(cha)范圍內，就認為保證了加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度。機(ji)器的(de)(de)(de)質量取決于零(ling)(ling)件(jian)(jian)的(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)質量和機(ji)器的(de)(de)(de)裝配(pei)質量，零(ling)(ling)件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)質量包含零(ling)(ling)件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度和表面(mian)質量兩大部(bu)分。機(ji)械加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度是(shi)指零(ling)(ling)件(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)后的(de)(de)(de)實際幾何(he)參數（尺寸、形狀(zhuang)和位置）與理(li)想幾何(he)參數相符合的(de)(de)(de)程度。它們之(zhi)間的(de)(de)(de)差(cha)(cha)異(yi)稱為加(jia)(jia)(jia)工(gong)(gong)誤(wu)(wu)差(cha)(cha)。加(jia)(jia)(jia)工(gong)(gong)誤(wu)(wu)差(cha)(cha)的(de)(de)(de)大小(xiao)反映了加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度的(de)(de)(de)高低。誤(wu)(wu)差(cha)(cha)越大加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度越低，誤(wu)(wu)差(cha)(cha)越小(xiao)加(jia)(jia)(jia)工(gong)(gong)精(jing)(jing)度越高。