Research on precise assembly of large optical components technology
With the rapid development of high-energy solid-state lasers, the demand for efficient and precise assembly of large optical components is growing. Currently the assembly of large optical components is low level of automation and labor-intensive. To achieve high level of automation is a very difficult task. The large optical components are very fragile, heavy and expensive. The high-energy solid-state lasers require the large optical components in high level of cleanness. In this paper, we designed a grasping device and an operating device which are used to complete the precision assembly of large optical components efficiently. The kinematic equations of the operating device are built. Workspace analysis and trajectory planning are completed. Based on the actual assembly process of large optical components, the control system of grasping device and operating device was designed.
Design of precise assembly equipment of large aperture optics
High-energy solid-state laser is an important way to achieve laser fusion research. Laser fusion facility includes thousands of various types of large aperture optics. These large aperture optics should be assembled with high precision and high efficiency. Currently, however, the assembly of large aperture optics is by man’s hand which is in low level of efficiency and labor-intensive. Here, according to the characteristics of the assembly of large aperture optics, we designed three kinds of grasping devices. Using Finite Element Method, we simulated the impact of the grasping device on the PV value and the RMS value of the large aperture optics. The structural strength of the grasping device’s key part was analyzed. An experiment was performed to illustrate the reliability and precision of the grasping device. We anticipate that the grasping device would complete the assembly of large aperture optics precisely and efficiently.
Finite Difference Modeling on the Temperature Field of Substrate in Friction Surfacing
Friction surfacing is an advanced process of great potential, especially in the field of repair and reclamation of worn and damaged components. As a kind of thermal processing technology, the temperature profile and changes of the substrate in friction surfacing are important factors to get coatings of high quality. In this paper, the temperature field of the substrate during the process is simulated by finite difference method. The results are consistent with experiments, reappearing the temperature change of the substrate during friction surfacing, allowing further study on figuration and quality of coatings.