我厂7655凿岩机的缸体件形状复杂,体积较大。特别是在 C 365 L大六角车床上车削偏心孔时,由于怕夹具体碰到刀架的拖板,因此向外扩张受到局限,实现气动拉紧比较困难。 最初,我厂采用螺母及开口垫式手动压紧(见图l),但这样用搬子上、下活时都要付出繁重的体力劳动,且生产率也不高 I plant 7655 rock drill cylinder body shape complex, larger. Especially in the C 365 L large hexagonal lathe turning eccentric hole, due to the fear of concrete encounter the carriage carriage, so outward expansion is limited, to achieve pneumatic tension more difficult. Initially, I plant the nut and the opening pad manually pressed (see Figure l), but this time with the move, the next have to pay a heavy manual labor, and productivity is not high