模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)是(shi)(shi)工(gong)(gong)(gong)業生產上用(yong)(yong)(yong)(yong)以注(zhu)塑(su)、吹塑(su)、擠出(chu)(chu)、壓(ya)(ya)鑄或(huo)(huo)鍛壓(ya)(ya)成(cheng)型(xing)、冶(ye)煉(lian)、沖壓(ya)(ya)等方法(fa)得到所需(xu)產品的(de)各種(zhong)模(mo)(mo)(mo)(mo)子和工(gong)(gong)(gong)具(ju)(ju)(ju)。簡而言之(zhi)(zhi)(zhi)，模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)是(shi)(shi)用(yong)(yong)(yong)(yong)來(lai)制(zhi)作(zuo)成(cheng)型(xing)物品的(de)工(gong)(gong)(gong)具(ju)(ju)(ju)，這種(zhong)工(gong)(gong)(gong)具(ju)(ju)(ju)由各種(zhong)零(ling)件構成(cheng)，不(bu)同的(de)模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)由不(bu)同的(de)零(ling)件構成(cheng)。它(ta)主(zhu)要通過(guo)所成(cheng)型(xing)材料(liao)(liao)物理狀(zhuang)(zhuang)(zhuang)態的(de)改變(bian)來(lai)實現(xian)物品外形(xing)的(de)加工(gong)(gong)(gong)。素有(you)“工(gong)(gong)(gong)業之(zhi)(zhi)(zhi)母”的(de)稱號(hao)。在外力作(zuo)用(yong)(yong)(yong)(yong)下(xia)使(shi)坯(pi)(pi)(pi)料(liao)(liao)成(cheng)為有(you)特(te)定(ding)形(xing)狀(zhuang)(zhuang)(zhuang)和尺寸的(de)制(zhi)件的(de)工(gong)(gong)(gong)具(ju)(ju)(ju)。廣泛用(yong)(yong)(yong)(yong)于沖裁、模(mo)(mo)(mo)(mo)鍛、冷鐓、擠壓(ya)(ya)、粉末(mo)冶(ye)金件壓(ya)(ya)制(zhi)、壓(ya)(ya)力鑄造，以及工(gong)(gong)(gong)程塑(su)料(liao)(liao)、橡膠、陶(tao)瓷等制(zhi)品的(de)壓(ya)(ya)塑(su)或(huo)(huo)注(zhu)塑(su)的(de)成(cheng)形(xing)加工(gong)(gong)(gong)中。模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)具(ju)(ju)(ju)有(you)特(te)定(ding)的(de)輪(lun)廓(kuo)或(huo)(huo)內(nei)腔(qiang)形(xing)狀(zhuang)(zhuang)(zhuang)，應用(yong)(yong)(yong)(yong)具(ju)(ju)(ju)有(you)刃口(kou)的(de)輪(lun)廓(kuo)形(xing)狀(zhuang)(zhuang)(zhuang)可(ke)(ke)以使(shi)坯(pi)(pi)(pi)料(liao)(liao)按輪(lun)廓(kuo)線形(xing)狀(zhuang)(zhuang)(zhuang)發(fa)生分(fen)離（沖裁）。應用(yong)(yong)(yong)(yong)內(nei)腔(qiang)形(xing)狀(zhuang)(zhuang)(zhuang)可(ke)(ke)使(shi)坯(pi)(pi)(pi)料(liao)(liao)獲(huo)得相應的(de)立體(ti)形(xing)狀(zhuang)(zhuang)(zhuang)。模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)一般包(bao)括動模(mo)(mo)(mo)(mo)和定(ding)模(mo)(mo)(mo)(mo)（或(huo)(huo)凸模(mo)(mo)(mo)(mo)和凹模(mo)(mo)(mo)(mo)）兩個部分(fen)，二者可(ke)(ke)分(fen)可(ke)(ke)合(he)(he)。分(fen)開時取出(chu)(chu)制(zhi)件，合(he)(he)攏時使(shi)坯(pi)(pi)(pi)料(liao)(liao)注(zhu)入模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)型(xing)腔(qiang)成(cheng)形(xing)。模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)是(shi)(shi)工(gong)(gong)(gong)具(ju)(ju)(ju)，形(xing)狀(zhuang)(zhuang)(zhuang)復(fu)雜，承受坯(pi)(pi)(pi)料(liao)(liao)的(de)脹力，對結(jie)構強度(du)、剛度(du)、表(biao)面(mian)(mian)硬度(du)、表(biao)面(mian)(mian)粗糙(cao)度(du)和加工(gong)(gong)(gong)精(jing)度(du)都有(you)較高要求，模(mo)(mo)(mo)(mo)具(ju)(ju)(ju)生產的(de)發(fa)展(zhan)水平是(shi)(shi)機械制(zhi)造水平的(de)重要標志之(zhi)(zhi)(zhi)一。

格柵模具