新型螺旋伞齿轮坯锻模设计

螺旋伞齿轮坯原锻模生产的锻件内孔有纵向飞边,难以去除,妨碍后续加工。给出实用的新型锻模结构。该锻模采用浮动模芯和浮动凹模结构,锻件在两个凹模形成的的封闭环形模腔中成形。生产的锻件无飞边,料块质量减轻5.5%,显著降低了生产成本。

Design of New Type of Forging Dies for Blank of Helical Bevel Gear

There was vertical flash on inner hole of forging by the forge die for blank of helical bevel gear. It is difficult to remove the flash and machine procedures follow-up. A new applied forge die is presented in the treatise. There are a float mould core and a float concave die in the die, forging forming within a closed ring cavity formed by two dies. The forgings without any flash can be produced with the new type of forge die and that weight of blank is decreased 5.5%. So that the cost of production is greatly decreased.