Aiming at the difficulty in controlling the optical alignment machining accuracy of high-precision thin-walled opto-mechanical parts, a control method based on accurate calculation of clamping force and non-contact online detection of clamping deformation monitoring was proposed. Through theoretical calculation, the clamping force values under three working conditions of centering processing are obtained, and a real-time detection system for clamping deformation is built. Measures such as establishing a high precision-connection surface and accurately adjusting the screw tightening torque of the clamping process are adopted to control the clamping deformation of the opto-mechanical parts and estimate the machining accuracy of the opto-mechanical components online. Experiments show that this method can realize the design accuracy index of opto-mechanical parts and provide reference for solving the similar problems.
Selected Laser Melting (SLM) has the advantage of high flexibility and can realize near net shape of high-precision complex components, which provides a new technological way to design and manufacture metal parts. To apply the advantages of SLM more widely in the design and forming of aerospace components, taking one connecting part of the recovery subsystem as an example, it realizes the structural optimization design based on SLM, carries out the mechanical simulation analysis, and completes the forming and processing. The results show that on the premise of meeting the application requirements, the weight of the optimized parts can be reduced by 24.54% and the overall manufacturing cycle can be saved by 41.46%, which provides an effective reference example for the process optimization design of the similar aerospace structural parts formed by selected laser melting technology.
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