Accuracy Analysis And Optimization Of Turret Assembly Station

Turret assembly debugging platform is an experimental device with two degrees of freedom .It is mainly used to test the system by the assembly, commissioning, testing and quality testing center of mass. It has an automatic leveling function, manual adjustment function, quality of mass measurements, and status information display.Test bed of the main structure is dominated by the main frame, weighing system, leveling system and the angle drive system drive and other components. The upper set in the main frame of a weighing system. Weighing system consists of four load cells, deformation device and controller. Framework consists of two main structures. The top substrate is above the load cell. Sensors are installed in the middle supporting plate. Intermediate support plate mounted on the leveling support board.In this paper, the research is mainly on ensuring the accuracy of the test platform. Firstly, through researching and analyzing the weighing system of test platform and the centroid measurement system of test platform, we can find that it will be reliable to measure the centroid position with a tilt platform. Then, test-bed weighing system and measurement system for stress analysis centroid of its measured centroid position of the quality and accuracy of the calculation to ensure that the design of the two systems meet the required accuracy.Then, focus on test-bed for the design of the structure of the substrate. Through the force of the substrate and accuracy requirements, initially identified the structure of the substrate and the substrate with WORKBENCH draw three-dimensional model, and then import them ANSYS finite element analysis to calculate the test-bed substrates in the working state of the total deformation map, Reached the maximum deformation and the value of the required accuracy and design compared to ensure that meet the design requirements.Finally, I will take measures to optimize the design of the test-bed. Through continuous modeling and finite element analysis, test-bed structure and size of the substrate were optimized to double support frame and processing Ligament and other measures to significantly reduce the thickness of the substrate, and ultimately makes the substrate deformation is just close to the maximum design Accuracy. This will ensure the accuracy of the test-bed substrates and save the substrate material, basic to the purpose of this thesis.