相关文章

外球面轴承箱零件的毛坯生产加工过程

外球面轴承箱零件的毛坯生产加工过程

外球面轴承箱零件有复杂的内腔,应选用易于成型的材料和制造方法。铸铁容易成型、切削性能好、价格低廉、并且具有良好的耐磨性和减震性。

Outside the spherical bearing box parts with complex inner cavity, should choose easy molding materialsmanufacturing methods. Cast iron is easy to forming, cutting performance is good, price is low,good wear resistanceshock absorption.

铸件毛坯的精度和加工余量是根据生产批量而定的。对于单件小批量的生产,一般采用木模手工造型。这种毛坯的精度低,加工余量大,其平面余量一般为7-12mm,孔在半径上的余量可适当减低,则平面余量为5-10mm,孔(半径上)的余量为7-12mm。为了减少加工余量,对于单件小批量生产直径大于50mm的孔和成批量生产大于30mm的孔,一般都要在毛坯上铸出预孔。

The precision of casting blankmachining allowance is according to the production batch. For single small batch production, generally USES the wooden hand model. The low accuracy of blank, machining allowance is big, its plane allowance is commonly 7 to 12 mm, hole on the radius of the allowance can be appropriately reduced, the plane allowance for 5-10 mm, hole (radius) allowance for 7 to 12 mm. In order to reduce the machining allowance, for single piecesmall batch production is greater than 50 mm diameter hole in mass production of more than 30 mm hole, typically on the blank casting out of the hole.