五金零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)加(jia)工精(jing)度是(shi)加(jia)工后(hou)零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)表面的(de)(de)(de)實際尺(chi)寸(cun)(cun)、形狀、位置三種幾(ji)何參數與(yu)圖紙要求的(de)(de)(de)理想(xiang)幾(ji)何參數的(de)(de)(de)符(fu)合程度。理想(xiang)的(de)(de)(de)幾(ji)何參數，對尺(chi)寸(cun)(cun)而(er)言，就(jiu)是(shi)平均尺(chi)寸(cun)(cun)；對表面幾(ji)何形狀而(er)言，就(jiu)是(shi)絕對的(de)(de)(de)圓(yuan)、圓(yuan)柱、平面、錐面和直線等；對表面之間(jian)的(de)(de)(de)相互位置而(er)言，就(jiu)是(shi)絕對的(de)(de)(de)平行、垂直、同軸、對稱(cheng)等。零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)實際幾(ji)何參數與(yu)理想(xiang)幾(ji)何參數的(de)(de)(de)偏離數值(zhi)稱(cheng)為(wei)加(jia)工誤差。博鑫精(jing)密(mi)是(shi)以不銹鋼零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)加(jia)工、鈦合金零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)加(jia)工、鋼材零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)加(jia)工、鋁合金零(ling)(ling)(ling)(ling)件(jian)(jian)(jian)加(jia)工、鑄件(jian)(jian)(jian)加(jia)工為(wei)公司(si)的(de)(de)(de)主打(da)產品(pin)，品(pin)質(zhi)保障，值(zhi)得(de)信賴！

一(yi)、五金零(ling)件加工精度根據(ju)不同的加工精度內(nei)容以及精度要求，采(cai)用不同的測量方(fang)法。一(yi)般來說(shuo)有以下幾類方(fang)法：

1、按是否直接(jie)測(ce)量被測(ce)參數，可分為(wei)直接(jie)測(ce)量和間(jian)接(jie)測(ce)量。

2、按量(liang)具量(liang)儀的(de)(de)讀(du)數(shu)值是否直接表示被測尺寸的(de)(de)數(shu)值，可分為絕對(dui)測量(liang)和相對(dui)測量(liang)。

3、按被測(ce)(ce)表(biao)面與(yu)量(liang)(liang)具量(liang)(liang)儀的(de)測(ce)(ce)量(liang)(liang)頭是否接觸(chu)，分為接觸(chu)測(ce)(ce)量(liang)(liang)和非接觸(chu)測(ce)(ce)量(liang)(liang)。

4、按一次測(ce)量(liang)參(can)數的多(duo)少，分為(wei)單項測(ce)量(liang)和綜(zong)合測(ce)量(liang)。

5、按測(ce)量在加(jia)工過程中所起的(de)作用，分為主動測(ce)量和被(bei)動測(ce)量。

6、按被測(ce)(ce)零件在測(ce)(ce)量過程中所處(chu)的狀態，分為靜態測(ce)(ce)量和(he)動態測(ce)(ce)量。

二、五金零件加工(gong)精度的(de)相關內(nei)容(rong)：

1、尺寸精度(du)：指(zhi)加工后零(ling)件的(de)實(shi)際尺寸與零(ling)件尺寸的(de)公差帶(dai)中心(xin)的(de)相符合程(cheng)度(du)。

2、形狀(zhuang)精度：指加工后的零件表面的實際幾何形狀(zhuang)與(yu)理想的幾何形狀(zhuang)的相符合程度。

3、位置精度：指加工后(hou)零件有(you)關表面之間的實(shi)際位置精度差別。

4、相(xiang)互關系：通常(chang)在(zai)設計機器(qi)零件及規(gui)定零件加工精度(du)(du)時，應注意將形狀誤差控制(zhi)在(zai)位置(zhi)(zhi)公(gong)差內，位置(zhi)(zhi)誤差又應小于(yu)尺(chi)寸公(gong)差。即精密(mi)零件或零件重要表面，其形狀精度(du)(du)要求(qiu)應高于(yu)位置(zhi)(zhi)精度(du)(du)要求(qiu)，位置(zhi)(zhi)精度(du)(du)要求(qiu)應高于(yu)尺(chi)寸精度(du)(du)要求(qiu)。

五金(jin)零件加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)主要用于生產(chan)產(chan)品程度(du)(du)，加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)與加(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)都是(shi)評價加(jia)工(gong)(gong)(gong)(gong)(gong)表(biao)面幾何(he)參數(shu)(shu)的(de)(de)術語(yu)。加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)用公(gong)差(cha)等(deng)級(ji)衡量，等(deng)級(ji)值(zhi)(zhi)越小(xiao)，其精度(du)(du)越高；加(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)用數(shu)(shu)值(zhi)(zhi)表(biao)示(shi)，數(shu)(shu)值(zhi)(zhi)越大，其誤(wu)差(cha)越大。鈦浩(hao)機(ji)械(xie)是(shi)以機(ji)床主軸(zhou)、回(hui)轉頂針、絲(si)(si)杠絲(si)(si)桿(gan)、軸(zhou)加(jia)工(gong)(gong)(gong)(gong)(gong)、數(shu)(shu)控車床加(jia)工(gong)(gong)(gong)(gong)(gong)、刀柄刀桿(gan)、夾頭接桿(gan)為公(gong)司的(de)(de)主打產(chan)品，加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)高，就是(shi)加(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)小(xiao)，反之亦然。公(gong)差(cha)等(deng)級(ji)從(cong)IT01，IT0，IT1，IT2，IT3至IT18一共有20個，其中IT01表(biao)示(shi)的(de)(de)話(hua)該零件加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)最高的(de)(de)，IT18表(biao)示(shi)的(de)(de)話(hua)該零件加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)是(shi)最低的(de)(de) ，一般上IT7、IT8是(shi)加(jia)工(gong)(gong)(gong)(gong)(gong)精度(du)(du)中等(deng)級(ji)別。

任(ren)何加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)方(fang)法所得到的(de)實際參數都(dou)不會絕對準確，從零(ling)(ling)(ling)件(jian)的(de)功(gong)能看(kan)，只(zhi)要加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)(cha)在零(ling)(ling)(ling)件(jian)圖要求的(de)公差(cha)(cha)(cha)范(fan)圍(wei)內，就(jiu)認為(wei)保(bao)證(zheng)了加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)。機(ji)器的(de)質(zhi)(zhi)量取決于(yu)零(ling)(ling)(ling)件(jian)的(de)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)量和機(ji)器的(de)裝配質(zhi)(zhi)量，零(ling)(ling)(ling)件(jian)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)量包(bao)含零(ling)(ling)(ling)件(jian)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)和表面質(zhi)(zhi)量兩大(da)部分。機(ji)械(xie)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)是指零(ling)(ling)(ling)件(jian)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)后的(de)實際幾何參數（尺(chi)寸、形狀和位置）與理想幾何參數相符(fu)合的(de)程度(du)(du)。它們之(zhi)間的(de)差(cha)(cha)(cha)異稱(cheng)為(wei)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)(cha)。加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)(cha)的(de)大(da)小(xiao)反映了加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)的(de)高(gao)低。誤(wu)差(cha)(cha)(cha)越大(da)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)越低，誤(wu)差(cha)(cha)(cha)越小(xiao)加(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)精度(du)(du)越高(gao)。