摘要
以汽车液压制动阀门推杆为研究对象,针对注射成型后因模具型芯偏移造成的推杆制品管状部分壁厚不均匀比较严重的情况。利用CAE技术,分析影响型芯偏移的主要因素,结合实际试模情况,对模具型芯结构和定位约束结构、型芯与轴套的配合间隙进行优化设计,使型芯偏移量减少了0.03mm,进而又对浇口位置进行优化,使得型芯偏移量进一步减小了0.06mm,型芯偏移量总体减小了0.09mm,最终使推杆管状部分壁厚值均在公差范围内。优化后的模具结构有效地减少了型芯的磨损,延长了模具寿命,并实现了大批量生产。
Taking the push rod of automobile hydraulic brake valve as the research object,aiming at the situation of serious uneven wall thickness of the tubular part of the push rod product caused by mold core deviation after injection molding.CAE technology was used to analyze the main factors affecting the core deviation,and combined with the actual mold test,the mold core structure,positioning constraint structure,and the fitting clearance between the core and the shaft sleeve were optimized,the core offset is reduced by 0.03mm.Then the position of the gate is optimized,and the core offset is further reduced by 0.06mm.The total offset of the core is reduced by 0.09mm,and the wall thickness of the tubular part of the push rod is within the tolerance range.The optimized mold structure effectively reduces the wear of the core,prolongs the life of the mold,and realizes mass production.
作者
王旭东
杜日
王永飞
王振东
郎志伟
Wang Xudong;Du Ri;Wang Yongfei;Wang Zhendong;Lang Zhiwei(Dalian Hualu Guozheng Industry Co.,Ltd.,Dalian,Liaoning 116620,CHN)
出处
《模具制造》
2024年第8期6-9,共4页
Die & Mould Manufacture
