针对某车型变速器驻车机构推杆需在装有预紧弹簧的条件下冲压对称限位凸耳的特点,制定了合理的成形工艺方案,设计了一副带有快速夹紧机构的成形模,模具的上、下模采用等间隙浮动结构。实践证明,模具结构合理,成形的推杆组件凸耳质量良好,生产效率较高。 Aiming at the characteristics of punching symmetrical limit lugs under the preloading spring with a certain type of transmission parking mechanism push rod, a reasonable forming process scheme was devised, a forming mold with quick clamping mechanism was designed, Die on the mold using the gap structure such as floating. Practice has proved that the mold structure is reasonable, forming the lug assembly lugs good quality, high production efficiency.