Structure Optimization And Control System Design Of Three-axis Robot

With the development of intelligent manufacturing technology,the use of automation equipment instead of manual work has become an important trend of modern development.In order to meet the needs of industrial production,China has formulated the development plan of "intelligent manufacturing 2025",which designs and manufactures new equipment instead of manual work,so as to improve the manufacturing efficiency of products and reduce the cost of product processing and manufacturing.In order to improve the level of automation,it is necessary to summarize the characteristics of automatic production according to the requirements of product manufacturing and related process characteristics.It can be seen that the three-axis robot has very good applicability.This kind of equipment can not only meet the production and manufacturing of many types of products,but also can be used in many processes of product manufacturing.The three-axis robot realizes its functions mainly through the movement of various cylinder structures.In order to meet different production requirements,the movement of different curves can be completed by controlling the cylinder action of the equipment.Based on the structural design,optimization and experimental analysis of the three-axis robot,a three-axis robot with better performance and adaptability is established in this paper.Its main contents are as follows:First,the mechanism design of three-axis robot is carried out.Based on the development direction of industrial automation and the research status of industrial robot,the development trend of three-axis robot is determined,and its process parameters are formulated.According to the design requirements of the three-axis robot,its design process can be formulated,and the scheme design of the device can be carried out according to the process.By comparing the advantages and disadvantages of its structural scheme,the optimal three-axis robot structure can be selected,and then the whole three-dimensional model can be established by using the software soldworks,Secondly,the finite analysis of three-axis robot is carried out.According to the structure model of the three-axis robot,based on the finite element theory,the static analysis of the connecting seat is carried out,and the stress-strain nephogram and modal vibration nephogram of the mechanism are obtained by using ANSYS Workbench software.By comparing the calculated stress value and modal frequency with the allowable value of the material,it can be seen that there is still a very large lifting space for the connector,so it is necessary to establish its optimization model,and obtain its design variables,constraints and objective functions.The optimal size of the connecting seat of the three-axis robot can be obtained by solving the calculation,and the structural modeling can be carried out by using the size parameters.By comparing the performance of the connecting seat before and after optimization,we can see that the optimized connecting seat has better mechanical performance.Thirdly,the kinematic analysis and optimization of the rotating mechanism are carried out.Based on the analysis of the rotating mechanism of the three-axis robot,its motion equation is established based on the principles of kinematics and dynamics,and its solution is calculated.In order to get a better rotating mechanism,we can establish its optimization model,determine the relevant optimization function equation,and use ADAMS software to solve its motion structure parameters.After comparing the angle and angular velocity curves of the motion mechanism before and after optimization,we can see that the motion of the mechanism after optimization is more stable.