摘要
为了解决当前3D打印制造过程中一些具有悬臂或者空腔结构又不允许添加内部支撑结构的打印件无法制造的问题,设计出一种工作平台可翻转的3D打印机,介绍了其结构组成以及工作原理;通过对系统模型进行运动学分析,得到工作平台机构运动学正解与逆解,为结构的速度分析和运动控制等研究提供了基础。利用ANSYS仿真软件对系统建立仿真模型,得到工作平台结构和喷头结构的应力与模态分析,验证了设计方案的可行性。实现了工作平台可翻转的可能性,完成无支撑结构的曲面结构打印。
In order to solve the current problem that some printed pieces with cantilever and cavity structures but not allowed to add internal support can not be printed,a type of 3D printer with reversible working platform was designed.The structure composition and working principle were introduced.Through kinematic analysis of the system model,the kinematic positive and inverse solutions of the working platform mechanism were obtained,which provide the basis for the velocity analysis and motion control of the 3Dprinter mechanism.The simulation model was established using ANSYS simulation software,the stress and modal analysis of the structure of the working platform and the nozzle were obtained,which verify the feasibility of the design scheme.Consequently,the possibility that the working platform can be turned over was achieved and the non-support surface structure can be printed.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2017年第5期1489-1497,共9页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(51135006
51505185)
关键词
机械设计
3D打印
结构分析
空间轨迹规划
模型仿真
mechanical design
3D printing
structure analysis
space trajectory planning
model simulation
