3288| 8
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尋找動(dòng)力頭 |
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點(diǎn)評(píng)
普通鉆孔可以用氣動(dòng)或液壓自進(jìn)給動(dòng)力頭,結(jié)構(gòu)和成本都小很多,銑削徑向受力很大,主軸配合間隙要求高,不能用滑動(dòng)配合的自進(jìn)給動(dòng)力頭,必須用滑臺(tái),攻絲進(jìn)給速度很慢,主軸進(jìn)給和旋轉(zhuǎn)速度有嚴(yán)格的比例,合成配置較高
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