曲轴箱体压铸模异形型芯的镶拼结构设计

Mosaic Structure Design for Profiled Core of Crankshaft Case Die Casting Mold

介绍了一款汽车发动机曲轴箱体的结构特点及技术要求,基于其结构特点和质量要求,在压铸模结构设计时,针对局部区域型腔较深、结构复杂的异形部位,采用镶拼式结构设计。同时对异形型芯镶拼结构进行了失效模式分析,通过对模具局部冷却能力、推杆尺寸及失稳性、螺栓强度等进行设计计算和校核,以保证模具镶拼结构设计的可靠性。

This paper introduced the structural characteristics and technical requirements of an automobile engine crankshaft box.Based on its structural characteristics and quality requirements,in the structural design of the die-casting mold,the mosaic structure design was adopted for the special-shaped parts with deep cavity and complex structure.At the same time,the failure mode of the profiled core mosaic structure was analyzed.Through the design,the calculation and verification of the mold local cooling capacity,push rod size and instability,bolt strength,etc.,the reliability of the mold mosaic structure design was ensured.