斗笠式刀库送刀置的改进.pdfVIP

摘 要 根据销售反馈信息总结的数据，斗笠式刀库换刀气缸的故障率，占到刀库 整体故障率的 70%。通过对几种与换刀气缸运动方式相似的机构进行对比，得 出新式凸轮式代替的换刀装置。 根据换刀凸轮的工作机理进行分析，确定了修正正弦曲线作为凸轮运动曲 线。初步确定运动参数，并进行压力角计算，得出 37.9°，满足直动凸轮设计 基本要求。对整个刀库系统进行受力分析，得出凸轮的受力情况，轨道接触面 最大受力为 173N，所需最大功率为 78W，最大转矩为 49.7NM 。通过赫兹公对 接触面进行强度校核，得出σ=238MPa，小于所选材料45 钢的极限应力。得出 此方案符合设计要求的结论。 最后运用 solidworks-simulation 进行有限元分析，进一步佐证了此方案 的可行性。 关键词：刀库；凸轮；修正正弦曲线；有限元分析 Amelioration of Automatic Tool Change Device for Armless Type Abstract According to the sales feedback information summarized data, ATC for armless type cylinder failure rate, accounting for 70% of the whole ATC failure rate. Through several and change the tools of cylinder movement way similar institutions, comparing the new CAM type instead of that of the change tool device. According to the change of the working mechanisms of CAM analysis and determined the fixed sine curve as CAM motion curve. Preliminary determine movement parameters and pressure Angle calculated, 37.9 °, and satisfy the basic requirement for straight moving CAM design. Analysis the ATC system, it is concluded that the stress of the CAM, the biggest rail interface stress for 173 N, the maximum power for 78 W, maximum torque for 49.7 N . Through the Hertz and check intensity of interface, it is concluded that, less than 45 steel materials selected the ultimate stress. Show that this scheme comply with the design requirements. Finally using solidworks-simulation in finite element analysis, further illustrates the feasibility of this plan. Keywords: Tool changer； Cam；Amendatory sine curve ；Finite element analysis Directed by： Prof. SHEN Qingtai A.E YANG Yu Applicant for Doctor degr