沖孔模設(shè)計外文翻譯-其他專業(yè)(編輯修改稿)
2025-02-24 07:42 本頁面
【文章內(nèi)容簡介】 ign since the finished blanks drop through the die , the lower shoe , and the press bolster . Large blanks are monly produced by an inverted die in which the die is mounted to the upper shoe with the punch secured to the bottom shoe . The passing of a large blank through the bolster is often impractical but its size may necessitate sectional die design . Draft ,or angular clearance in an inverted die is unnecessary because the blank does not pass through it . For ease of construction , regrinding , and strength the cutting edges of each section should not include points and intricate contours . The springsloaded stripper is mounted on the lower shoe 。 it travels upward in stripping the stock from the punch fastend to the lower shoe . Stripper bolts hold and guide the stripper in its travel . On the upstroke of the ram , the upper end of the knockout rod strikes an arm on the press frame , which forces the lower end of the rod downward , through the die , and ejects the finished blank from the die ca
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