NEWS CENTER
機(ji)械加工(gong)廠(chang)強調機(ji)械加工(gong)要滿足(zu)一(yi)定的(de)精密(mi)度，是指鋼(gang)件在機(ji)械加工(gong)后的(de)實際上幾(ji)何(he)圖(tu)(tu)形(xing)主要參數與零件圖(tu)(tu)紙所要求的(de)理(li)想(xiang)化(hua)值(zhi)的(de)相(xiang)(xiang)一(yi)致的(de)水平(ping)。而他們中間不相(xiang)(xiang)一(yi)致的(de)水平(ping)，則稱之為生(sheng)產(chan)加工(gong)偏差。
機械加工(gong)廠生(sheng)產(chan)加工(gong)精密度(du)包(bao)含3個層面(mian)：一方面(mian)是規(gui)格精密度(du)，限定(ding)生(sheng)產(chan)加工(gong)表(biao)(biao)層兩者之間標準(zhun)(zhun)標準(zhun)(zhun)間規(gui)格偏差不超出必(bi)須的范疇；另一方面(mian)幾(ji)何圖形(xing)(xing)樣子(zi)精密度(du)，限定(ding)生(sheng)產(chan)加工(gong)表(biao)(biao)層的宏(hong)觀經濟幾(ji)何圖形(xing)(xing)樣子(zi)偏差，如圓度(du)、圓柱度(du)、平行度(du)和直線度(du)等。
還有一方面則(ze)是互相部(bu)位精密度(du)(du)，限(xian)定機械加(jia)(jia)工(gong)廠生(sheng)產加(jia)(jia)工(gong)表(biao)層兩者(zhe)之間標準(zhun)間的(de)互相部(bu)位偏(pian)差，如(ru)同軸(zhou)度(du)(du)、平(ping)整(zheng)度(du)(du)和(he)平(ping)行度(du)(du)等。生(sheng)產加(jia)(jia)工(gong)精密度(du)(du)是生(sheng)產加(jia)(jia)工(gong)后零(ling)部(bu)件表(biao)層的(de)實際上規(gui)格、樣子、部(bu)位幾種幾何圖形(xing)主要參數(shu)與工(gong)程圖紙(zhi)規(gui)定的(de)理想化幾何圖形(xing)主要參數(shu)的(de)合(he)乎水平(ping)。
理想(xiang)化的(de)幾何(he)圖形主要(yao)參數(shu)，對(dui)規格來講，是說均(jun)值(zhi)規格；對(dui)表層幾何(he)圖形樣(yang)子來講，是說的(de)圓、圓柱體(ti)、平(ping)面圖、球面和平(ping)行線(xian)等(deng)(deng)；對(dui)表層中(zhong)間的(de)互(hu)相部(bu)位來講，是說的(de)平(ping)行面、豎直、同軸輸出(chu)、對(dui)稱(cheng)性等(deng)(deng)。
機械加工(gong)(gong)廠生(sheng)產(chan)零部(bu)件實際上幾何(he)圖形主(zhu)要(yao)參數與(yu)理想化幾何(he)圖形主(zhu)要(yao)參數的(de)(de)偏(pian)移標值(zhi)稱(cheng)之為生(sheng)產(chan)加工(gong)(gong)偏(pian)差(cha)(cha)(cha)。生(sheng)產(chan)加工(gong)(gong)精(jing)密度(du)與(yu)生(sheng)產(chan)加工(gong)(gong)偏(pian)差(cha)(cha)(cha)全(quan)是(shi)點(dian)評生(sheng)產(chan)加工(gong)(gong)表層幾何(he)圖形主(zhu)要(yao)參數的(de)(de)專(zhuan)業(ye)術語。生(sheng)產(chan)加工(gong)(gong)精(jing)密度(du)用公差(cha)(cha)(cha)等級考量(liang)，等級值(zhi)越(yue)(yue)小，其(qi)精(jing)密度(du)越(yue)(yue)高(gao)；生(sheng)產(chan)加工(gong)(gong)偏(pian)差(cha)(cha)(cha)用標值(zhi)表達，標值(zhi)越(yue)(yue)大，其(qi)偏(pian)差(cha)(cha)(cha)越(yue)(yue)大。
Machining plant emphasizes that machining must meet certain precision, which means that the actual geometry parameters of the steel parts after machining are consistent with the idealized values required by the part drawings. The level of inconsistency between them is called production-processing bias. There are three levels of manufacturing precision in a machining plant: On the one hand is the precision of the specifications, which limits the standard deviation between the production and the processing surface to be within the necessary range; on the other hand is the precision of the geometric patterns, limit the appearance deviation of macro-economic geometries, such as roundness, cylindricity, parallelism and straightness. On the other hand is the precision of each other's parts, limit the deviation between the two standard parts, such as coaxiality, flatness and parallelism, etc. . The precision of production processing is that the main parameters of the actual specification, shape and position of the surface layer of the parts are in line with the main parameters of the idealized geometry stipulated in the engineering drawings. The main parameters of an idealized geometric figure are, in the case of a specification, mean size; in the case of a surface geometric figure, circles, cylinders, plans, spheres, and parallel lines; and in the case of the mutual parts between the surfaces, it is said that the parallel plane, vertical, coaxial output, symmetry and so on. The offset of the main parameters of the actual geometry and the idealized geometry of the parts produced by the machining plant is called the production deviation. Production processing precision and production processing deviation is the evaluation of the production process surface geometric parameters of the main terms. The production process precision is considered by tolerance grade, the smaller the grade value, the higher the precision, and the production process deviation is expressed by standard value, the larger the standard value, the greater the deviation.