一种拉链去齿用凸轮机构的改进优化  

Improvement and optimization of a cam mechanism for zipper tooth removal

作　　者：龚子健 张永炬 张莉[2] 杨志[3] GONG Zijian;ZHANG Yongju;ZHANG Li;YANG Zhi(Zhejiang Sci-Tech University,Hangzhou 310000,China;Taizhou University,Taizhou 317700,China;Zhejiang Weixing Industrial Development Co.,Ltd.,Taizhou 317000,China)

机构地区：[1]浙江理工大学,杭州310000 [2]台州学院,台州317700 [3]浙江伟星股份有限公司,台州317000

出　　处：《现代制造工程》2023年第2期116-121,共6页Modern Manufacturing Engineering

基　　金：浙江省重点研发计划项目(2021C01054)。

摘　　要：某拉链生产设备的去齿机构选用了摆动从动件盘形凸轮机构。为提高设备工作时的稳定性,对凸轮轮廓进行理论分析,依据不同运动规律的运动特性,在推程段选用三段式加速度运动规律,通过解析法推导出从动件运动方程。为选取三段式加速度最佳分段点,以凸轮的负载最小为优化目标、分段点取值为设计变量构建优化模型,采用标准粒子群优化算法对目标函数进行优化求解。依据求解结果,利用Matlab及SolidWorks软件完成优化后凸轮的物理建模,最后采用多体动力学软件Adams得到摆动从动件盘形凸轮的运动仿真曲线。结果表明,该凸轮优化方法有效地优化了凸轮轮廓曲线,一定程度上提高了切刀运行时的稳定性,为实际生产中设备改进提供了可靠的路径。The tooth removal mechanism of a zipper production equipment uses a disc cam mechanism with swing follower. In order to improve the stability of the equipment, the cam profile was analyzed theoretically. According to the motion characteristics of different motion laws, the three-stage acceleration motion law was selected in the push section, and the motion equation of the follower was deduced by analytical method. In order to select the optimal piecewise point of three-stage acceleration, an optimization model was constructed with the mininum cam load as the optimization obiective and the value of piecewise point as the design variable. The standard particle swarm optimization algorithm was used to optimize the objective function. According to the solution results, Matlab and SolidWorks software were used to complete the physical modeling of the optimized cam. Finally, multi-body dynamics software Adams was used to obtain the motion simulation curve of the disc cam of the swing follower. The results show that the cam optimization method can effectively optimize the cam profile convex, improve the stability of the cutter to a certain extent, and provide a reliable path for equipment improvement in actual production.

关 键 词：凸轮轮廓曲线 Matlab仿真设计 粒子群优化算法 拉链去齿 

分 类 号：TH112.2[机械工程—机械设计及理论]