| With the rapid development of mechanical industry and industrial automation,industrial robots are rapidly developing and playing an increasingly important role,especially in the field of automatic assembly,has been widely used in automobile manufacturing,home appliance manufacturing and other industrial fields.However,at present,robot design also has the problem of excessive redundancy and overall weight.This paper takes DA5 industrial assembly robot as the research object and takes mass minimization as the goal to optimize the size and shape design and achieve better weight reduction effect.The main research content of this paper is as follows: first,analyze the structure characteristics of the robot in detail,summarize the production and application situation,and extract the lightweight design requirements of the robot.Secondly,a 3d model of DA5 industrial assembly robot is established and ADAMS simulation analysis is carried out to obtain the dangerous posture of main parts and the detailed information of the limit working condition under the dangerous posture.Thirdly,finite element analysis of the ultimate working condition of DA5 industrial assembly robot was carried out,including static analysis,modal analysis and fatigue analysis,to confirm that the main parts of DA5 industrial assembly robot could be greatly optimized.Finally,the optimization analysis is carried out with minimum mass as the objective,and the size and shape optimization are carried out under the constraint conditions of strength,frequency,fatigue and so on.The weight reduction rate of the whole machine is obtained by integrating the weight reduction percentage of each component.The modal analysis of the optimized assembly robot proves that the optimized robot is more stable and energy-saving... |
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