Measurement System Based On The Trajectory Of The Translational Impacted Glass Beads

This project aims to design a translational trajectory measurement system of the impactglass beads; the system for friction assisted electroforming technology related electroformingprocess parameters to improve the in depth study of the law of motion of the glass beads.Traditional electroforming process the cathode surface is prone to pitting, pinholes and otherdefects, Nanjing University of Aeronautics and Astronautics, the proposed action based oncathode flat free particle friction assisted electroforming technology, in the electroformingprocess, the cathode workpiece is put into waterlogged electroforming liquid glass beads andglass bead friction driven translational motion, the impact of the cathode surface, to removethe cathode surface bubbles in addition to the adsorption and deposition surface plot tumor toachieve significant improvement in the quality of the electroforming purpose.Based on the technology, abrasive polishing assisted electroforming using cathodetranslational, simplifying related practical measurement elements, and glass beads based onthe impact of translational trajectory Observing System. The system used to measure atdifferent speeds, flat momentum trajectory coordinates of the impact of glass beads, glassbeads in the translational impact of features to be found massive, repeated measurement test,optimize abrasive polishing assisted electroforming technology process parameters.The resultin the dissertation is meaningful for improving the level of abrasive polishing assistedelectroforming. The main contents of the paper are as follows:For the actual measurement process, this paper proposes the use of binocular stereovision measurement technology developed observation device of a glass bead trajectory andresearch trajectory model of glass beads in the impact of different level momentum in order tooptimize the friction assisted electroforming technology provide a research basis. In order tofurther explore and optimize the friction assisted electroforming process parameters, mainlyto complete the following work:(1) In accordance with the requirements of the relevant processes of the friction-assistedelectroforming technology, designed translational impact the overall program under glassbead trajectory measurement system. The system includes hardware design and softwaresystem design. The hardware system design including the new speed level momentum can be adjusted for the level institutions, the hardware structures of the visual system and otherancillary part of the software system, including image acquisition, image preprocessing, thecoordinates of image feature extraction, binocular vision model, the camera parametercalibration, and other parts;(2) Design the measurement system hardware part. Any point movement in the longdouble crank mechanism, connecting rod, the translational motion of features, design speed ofa new level of momentum can be adjusted in level mechanism, and in accordance with theaccuracy of measurement and process needs to build a collecting images of the impact glassbeads translational visual measurement system;(3) Design software part of the measurement system. Completion of the single particletracer glass beads the translational impact of image acquisition, image preprocessing; pointHough circle operator edge detection contour tracer glass beads, the center of the circle as thematching feature points; Zhang Zhen you plane calibrated camera parameters by matchingfeature points of space eyes orthogonal measurement mathematical model of the relationshipto calculate the trajectory of the tracer glass beads three-dimensional motion coordinates.(4) Testing and results analysis. Measurement system device level momentum is10mm,the cathode work piece speed is150r/min, for example, to measure the coordinate values ofthe three-dimensional trajectories of single-particle tracer glass beads in the translationalimpact. To verify the measurement system accuracy, static objects into the same measurementenvironment, measure the position coordinates between the objects known markers, accordingto the relationship between known markers of the location of the error analysis, and analysisresulting in the error reasons. The results showed that the relative error is7.06%, indirectverify that the system has high reliability.