静压造型线砂箱结构及定位改进

Static Pressure Molding Line Sand Box Structure and Positioning Improvement

介绍了通过改进定位方法,应用一面两销定位,销出箱面150 mm,间距公差＆#177;0.15 mm,定位销套配合公差Ф35H7/Ф35b8,单侧间隙0.10～0.14 mm;导正销套配合公差32H9＆#215;32b8;合箱时采用长销予定位,保证砂箱合型及互配错型值≤ 0.30 mm精度要求;采用液压装配,压紧顶紧分离等方法,解决了静压线错型超过0.50mm的问题.

The improved positioning of the application of one side two pin positioning has been introduced, the pin is out of the box face for 150 mm, the spacing tolerance of ±0.15 mm, the positioning pin sleeve with tolerance diameter of Ф35H7/Ф35b8, the unilateral clearance of 0.10 - 0.14 mm, the guide pin sleeve fit tolerance of 32H9×32b8. When the box assembling, the long pin has been used for positioning, in order to ensure the sand box closing and mismatch degree 40.30 mm accuracy requirements. The hydraulic assembly and pressing tight separation method have been used, in order to solve the problem of the static line mismatch degree over 0.50 mm.