Optical angle reflection target ball and manufacturing method thereof

Abstract

The invention provides an optical angle reflection target ball which is an integrated structure of an angle reflector and a ball body and is a seven-eighths ball body. Three reflection surfaces which are perpendicular to each other are formed at the position where a one-eighth ball body is lacked, the seven-eighths ball body is an all-metal structure, and the three reflection surfaces are polishing and coating surfaces. A manufacturing method of the optical angle reflection target ball is further provided. The angle reflector and the ball body are formed synchronously. The manufacturing method includes the following steps: shaping a solid metal ball body in a processing mode; performing three-time half-and-half cutting, obtaining a one / second metal ball body, a one / fourth metal ball body and two one / eighth metal ball bodies respectively, removing a one / eighth ball body, and forming three reflection surfaces and three groups of corresponding junction surfaces in the one / second metal ball body, the one / fourth metal ball body and the one / eighth metal ball body; performing polishing and coating on the three reflection surfaces; and combining each group of corresponding junction surfaces in a fixed mode, forming the seven / eighths ball body, and forming the three reflection surfaces which are perpendicular to each other. The optical angle reflection target ball is high in target ball accuracy, simple in structure, low in cost, firm and durable and strong in anti-fall capacity.

Description

technical field [0001] The invention relates to an optical angle reflection device and a manufacturing method thereof. The device is mainly used for laser tracking measurement and can also be used for other optical measurement systems. Background technique [0002] With the advancement of science and technology and the development of the equipment manufacturing industry, the requirements for laser trackers are getting higher and higher. Laser trackers have the characteristics of large measurement range, high precision, good dynamic performance, and real-time on-site measurement. It can not only perform high-precision three-dimensional measurement of space static targets, but also track and measure moving targets. It has been widely used in high-end intelligent manufacturing industries such as aerospace, rail transit, and shipbuilding. [0003] The tracking target ball, that is, the optical angle reflection target ball, is an important part of the laser tracker. The existing...

AI Technical Summary

Problems solved by technology

[0005] 1. The concentricity between the corner point of the glass reflector and the sphere is difficult to achieve high precision, which affects the measurement accuracy

[0006] 2. The installation process of the three reflective surfaces is complicated, and the verticality is difficult to guarantee

[0007] 3. When the ambient temperature changes, the glass reflective surface is easily deformed

[0008] 4. The reflective ball is easily damaged when it falls

[0009] 5. Glass reflectors are expensive to manufacture

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