【導(dǎo)讀】.工作步驟的擬定··················2. .工藝尺寸計(jì)算····················4. 凸模、凹模和凹凸模結(jié)構(gòu)的設(shè)計(jì)················7. 確定模具的結(jié)構(gòu)形式·····················7. 卸料與出料裝置·······················8. 加工件是一扇形齒板,如圖1所示,它是汽車車門玻璃升降器的重要傳動(dòng)零件,度等都有很大影響。由于使用普通沖孔落料