Metal prism for 3D laser scanner, mounting shaft and 3D laser scanner

Abstract

The invention provides a metal triangular prism of a three-dimensional laser scanner, an installation shaft and the three-dimensional laser scanner, comprising: a metal triangular prism body; a connecting hole is arranged at the axis position of the metal triangular prism body; an axis position of the upper bottom surface of the metal triangular prism body is arranged The first counterbore has a second counterbore at the axis position of the lower bottom; in the metal prism body, the second counterbore is provided with a first through hole on the side facing the upper bottom; the first through hole and the first counterbore There is a second through hole between them; the three sides of the metal prism body are coated with reflective film; the above-mentioned metal prism forms a three-dimensional laser scanner through its matching installation shaft and power supply device; it uses a metal prism, combined with a metal prism The installation shaft constitutes a three-dimensional laser scanner. Among them, the metal prism has good machining performance and high processing accuracy, and specific design can be carried out according to needs; moreover, the metal prism is not easy to be damaged during component processing and assembly.

Description

technical field [0001] The invention relates to the technical field of three-dimensional laser scanning, in particular to a metal triangular prism of a three-dimensional laser scanner, an installation shaft and the three-dimensional laser scanner. Background technique [0002] Three-dimensional laser scanning technology, also known as real scene replication technology, is a technological revolution in the field of surveying and mapping after GPS (Global Positioning System, Global Positioning System) technology. It breaks through the traditional single-point measurement method and has the unique advantages of high efficiency and high precision. 3D laser scanning technology can provide 3D point cloud data of the scanned object surface, so it can be used to obtain high-precision and high-resolution digital terrain models. [0003] The embodiment of 3D laser scanning technology is the 3D laser scanner. Its basic principle is: the laser emitted by the distance measuring module i...

AI Technical Summary

Problems solved by technology

In practice, the hole shaft fit between the scanning prism and the bearing is designed to be a tight fit, while the machining accuracy of the inner hole of the glass scanning prism is not ideal, and the deviation is large, which makes it very difficult to assemble the scanning prism and the bearing in the later stage, such as the bearing It is stuck when it is inserted into the inner hole of the scanning prism before reaching the required installation position)

Glass-based prisms are prone to chipping and damage when subjected to excessive force

[0005] The inventor found in the research that the optical glass substrate of the 3D laser scanner in the prior art has poor processing performance and precision, and the problem of edge chipping and damage is prone to occur in processing and assembly engineering, and the scanning mirror is a high-speed rotating component. Damaged glass components can bring uncertainty to the performance and safety of the entire machine

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