五金零件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)精度是加(jia)工(gong)(gong)后零件(jian)(jian)(jian)(jian)表(biao)面(mian)(mian)的實(shi)(shi)際尺寸、形狀、位(wei)置三種幾(ji)何參(can)(can)數與圖紙要求的理(li)想幾(ji)何參(can)(can)數的符合程度。理(li)想的幾(ji)何參(can)(can)數，對(dui)(dui)(dui)尺寸而言，就是平均(jun)尺寸；對(dui)(dui)(dui)表(biao)面(mian)(mian)幾(ji)何形狀而言，就是絕對(dui)(dui)(dui)的圓(yuan)、圓(yuan)柱(zhu)、平面(mian)(mian)、錐面(mian)(mian)和直線等；對(dui)(dui)(dui)表(biao)面(mian)(mian)之(zhi)間的相互位(wei)置而言，就是絕對(dui)(dui)(dui)的平行、垂直、同軸、對(dui)(dui)(dui)稱等。零件(jian)(jian)(jian)(jian)實(shi)(shi)際幾(ji)何參(can)(can)數與理(li)想幾(ji)何參(can)(can)數的偏(pian)離數值稱為加(jia)工(gong)(gong)誤差。博鑫精密(mi)是以不銹鋼(gang)零件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)、鈦合金零件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)、鋼(gang)材零件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)、鋁合金零件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)、鑄件(jian)(jian)(jian)(jian)加(jia)工(gong)(gong)為公司的主(zhu)打產品，品質保障，值得信賴！

一、五金零件加工精(jing)(jing)(jing)度根(gen)據不同的加工精(jing)(jing)(jing)度內容(rong)以(yi)及精(jing)(jing)(jing)度要(yao)求，采用不同的測量方法(fa)。一般來說有(you)以(yi)下幾類(lei)方法(fa)：

1、按是否直(zhi)接測(ce)量被測(ce)參數，可分為直(zhi)接測(ce)量和間接測(ce)量。

2、按量(liang)(liang)具量(liang)(liang)儀的讀數值是否直接(jie)表(biao)示被測尺寸的數值，可分為絕(jue)對測量(liang)(liang)和相(xiang)對測量(liang)(liang)。

3、按被測(ce)表面與量具量儀(yi)的測(ce)量頭是否(fou)接觸(chu)，分為接觸(chu)測(ce)量和非接觸(chu)測(ce)量。

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

5、按測量(liang)在加工過程中(zhong)所起的作用，分為(wei)主動(dong)測量(liang)和(he)被動(dong)測量(liang)。

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

二、五金零件加工(gong)精度的相關內容：

1、尺寸精度：指加(jia)工后零件的實際尺寸與零件尺寸的公差帶中心的相符合(he)程度。

2、形(xing)狀精度：指(zhi)加(jia)工后的(de)零(ling)件表面的(de)實際幾(ji)(ji)何(he)形(xing)狀與(yu)理(li)想的(de)幾(ji)(ji)何(he)形(xing)狀的(de)相符(fu)合(he)程(cheng)度。

3、位(wei)置(zhi)精(jing)度：指加工(gong)后零件(jian)有關表面之(zhi)間的實際位(wei)置(zhi)精(jing)度差別。

4、相(xiang)互(hu)關系(xi)：通常在設計機器(qi)零(ling)件及規定零(ling)件加工(gong)精(jing)(jing)度(du)時，應(ying)注意將形狀誤差控制在位置公差內，位置誤差又應(ying)小于尺(chi)寸公差。即(ji)精(jing)(jing)密零(ling)件或零(ling)件重(zhong)要(yao)(yao)表面，其形狀精(jing)(jing)度(du)要(yao)(yao)求(qiu)應(ying)高于位置精(jing)(jing)度(du)要(yao)(yao)求(qiu)，位置精(jing)(jing)度(du)要(yao)(yao)求(qiu)應(ying)高于尺(chi)寸精(jing)(jing)度(du)要(yao)(yao)求(qiu)。

五金零(ling)(ling)件加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)主(zhu)(zhu)要用于生產產品(pin)程度(du)(du)，加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)與加(jia)(jia)工(gong)(gong)(gong)誤(wu)(wu)差(cha)都是(shi)(shi)評價加(jia)(jia)工(gong)(gong)(gong)表(biao)(biao)面幾何參數(shu)的(de)(de)術語。加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)用公差(cha)等級衡量，等級值越(yue)小，其(qi)精(jing)度(du)(du)越(yue)高(gao)；加(jia)(jia)工(gong)(gong)(gong)誤(wu)(wu)差(cha)用數(shu)值表(biao)(biao)示，數(shu)值越(yue)大(da)(da)，其(qi)誤(wu)(wu)差(cha)越(yue)大(da)(da)。鈦浩(hao)機械是(shi)(shi)以機床主(zhu)(zhu)軸(zhou)、回轉頂針(zhen)、絲杠絲桿(gan)、軸(zhou)加(jia)(jia)工(gong)(gong)(gong)、數(shu)控車床加(jia)(jia)工(gong)(gong)(gong)、刀(dao)柄刀(dao)桿(gan)、夾頭接桿(gan)為公司的(de)(de)主(zhu)(zhu)打產品(pin)，加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)高(gao)，就是(shi)(shi)加(jia)(jia)工(gong)(gong)(gong)誤(wu)(wu)差(cha)小，反(fan)之(zhi)亦然。公差(cha)等級從(cong)IT01，IT0，IT1，IT2，IT3至IT18一(yi)共有20個，其(qi)中IT01表(biao)(biao)示的(de)(de)話該零(ling)(ling)件加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)最高(gao)的(de)(de)，IT18表(biao)(biao)示的(de)(de)話該零(ling)(ling)件加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)是(shi)(shi)最低的(de)(de) ，一(yi)般上IT7、IT8是(shi)(shi)加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du)中等級別。

任何加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)方法(fa)所得到的(de)(de)實(shi)際參數都不會絕對準確，從零件(jian)的(de)(de)功能看，只要(yao)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)在零件(jian)圖要(yao)求的(de)(de)公差(cha)(cha)范(fan)圍內，就認為(wei)保證了(le)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)。機器的(de)(de)質(zhi)量(liang)取決于零件(jian)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量(liang)和(he)機器的(de)(de)裝配質(zhi)量(liang)，零件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量(liang)包含零件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)和(he)表(biao)面質(zhi)量(liang)兩大部分。機械加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)是指(zhi)零件(jian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)后的(de)(de)實(shi)際幾(ji)何參數（尺寸、形狀和(he)位(wei)置）與理想幾(ji)何參數相符合的(de)(de)程度(du)(du)。它(ta)們之間的(de)(de)差(cha)(cha)異稱(cheng)為(wei)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)。加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)誤(wu)差(cha)(cha)的(de)(de)大小(xiao)反映了(le)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)的(de)(de)高低(di)。誤(wu)差(cha)(cha)越(yue)大加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)越(yue)低(di)，誤(wu)差(cha)(cha)越(yue)小(xiao)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du)(du)越(yue)高。