The structural design of the high-precision mirror core is an important step in determining the reasonable shape and overall structural dimensions of the high-precision mirror core. It consists of the type, size and position of the parts mounted on the high-precision mirror core, the fixing method of the parts, the nature, direction, size and distribution of the load, the type and size of the high-precision mirror core, and the high-precision mirror core. Blanks, manufacturing and assembly processes, installation and transportation are related to factors such as deformation of high-precision mirror cores. The designer can design according to the specific requirements of the high-precision mirror core. If necessary, several schemes can be compared to select the best design. The following are the design principles of the high-precision mirror core structure: 1. Saving materials, Reduce the weight, try to use the cross-sectional shape of equal strength shape or large section coefficient; 2. Accurately locate, stabilize, assemble, disassemble and adjust the parts on the high-precision mirror core; 3. Use various kinds of stress reduction and strength improvement. Structural measures; 4, easy to manufacture and ensure accuracy.

Torsional stiffness of high precision mirror core

The torsional stiffness check of the high-precision mirror core is the calculated torsional deformation of the high-precision mirror core, measured by the twist angle of the core of each high-precision mirror core. The torsional deformation of the high-precision mirror core should affect the performance and working accuracy of the machine. For example, the torsion angle of the high-precision mirror core of the internal combustion engine cam is too large, which will affect the correct opening and closing time of the valve. The gantry crane motion mechanism drives the high-precision mirror core. The torsion angle affects the synchronism of the drive wheels; the high-precision mirror cores that are at risk of torsional vibrations and the high-precision mirror cores in the steering system require large torsional stiffness.