Dynamic optical focusing mechanical device suitable for scanning light spot correction

Abstract

The invention provides a dynamic optical focusing mechanical device suitable for scanning light spot correction. A first lens base and a second lens base are separately mounted on double sliding blocks of a same-track double-sliding-block horizontal moving table, and the first lens base and the second lens base can perform independently horizontal movement along a double-sliding-block track of thesame-track double-sliding-block horizontal moving table. A first cylindrical lens mounting cylinder, a second cylindrical lens mounting cylinder and a spherical convex lens mounting seat are arrangedin sequence in the light emission direction, and the spherical convex lens mounting seat is provided with a spherical convex lens. A rotary driving module drives the first cylindrical lens mounting cylinder to rotate, a transmission sleeve and transmission optical axis kinematic pair transmission mode realizes synchronous rotation of the two cylindrical lens mounting cylinders. The dynamic optical focusing mechanical device provides a specific mechanical device form for a dynamic focusing optical path of orthogonal cylindrical lens groups for light spot shape distortion correction according to the light spot correction requirements of large-format laser scanning, effectively realizes the coordination of the synchronous rotation and independently horizontal movement of a pair of orthogonalcylindrical lens groups, and enables the accuracy of optical path adjustment to meet certain requirements.

Description

technical field [0001] The present invention relates to the field of mechanical manufacturing, in particular to a dynamic optical focusing mechanical device, in particular to a dynamic optical focusing mechanical device used for spot shape correction in large-format scanning laser processing, which is mainly used in laser spraying of large workpieces. It can also be used in other laser processing fields that require large format optical scanning. Background technique [0002] In the field of aerospace manufacturing, the forming and strengthening of large workpieces is a key technical problem. On the one hand, in order to meet the requirements of aerodynamic shape, the contour shape of such large workpieces is generally more complicated, and the forming process is more difficult; on the other hand, in order to work stably in harsh environments, such large workpieces must also have good The mechanical properties need to be fully strengthened before service. [0003] Laser pe...

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