Optical zoom cam curve detection device and detection method

Abstract

The invention discloses an optical zoom cam curve detection device and method, and relates to the field of optical system detection. The device comprises an operation platform, a cam shaft transmission mechanism, linear motion sliding sets, anti-backlash spring assemblies, a grating ruler detection assembly, a potentiometer detection assembly, limiting switch assemblies and an electric control box, the cam shaft transmission mechanism is fixed to the middle of the operation platform, and the two sets of linear motion sliding sets are installed on the two sides of the cam shaft transmission mechanism; the two sets of anti-backlash spring assemblies are arranged on the two sides of the cam shaft transmission mechanism, the two sets of grating ruler detection assemblies are installed on the outer sides of the two sets of linear motion sliding sets respectively, and the two sets of potentiometer detection assemblies are installed between the linear motion sliding sets on the two sides of the operation platform and the grating ruler detection assemblies respectively. There are two sets of limiting switch assemblies, the limiting switch assemblies are installed on the two outer sides of the operation platform and the electric control box is installed on the operation platform. According to the device and the method, the camshaft machining curve is automatically collected and fitted in the whole process and is intelligently compared with theoretical curve data, and the machining error of the whole curve is directly calculated.

Description

technical field [0001] The invention relates to the field of optical system detection, in particular to an optical zoom cam curve detection device and detection method for detecting the entire camshaft processing curve and greatly improving the detection efficiency and automation of the camshaft processing curve. Background technique [0002] At present, in the zoom control technology of optical and infrared lenses, some of them are implemented by screw guide rails, and some are implemented by a camshaft structure or a cam barrel structure. The structure of the screw guide rail is completely through the software, and the algorithm is calculated according to the theoretical curve, and the movement of the screw rod is controlled to control the change of the focal length of the lens. The continuous zoom cam structure belongs to the semi-customized zoom structure. The zoom curve is calculated theoretically, and then the camshaft structure is processed strictly according to the c...

AI Technical Summary

Problems solved by technology

[0007] What the present invention is to solve is the problem that there is no existing system that can quantitatively detect the curve and lead of the processed cam, and provides a method for detecting the entire camshaft processing curve, which greatly improves the detection efficiency of the camshaft processing curve and Automated optical zoom cam curve detection device and detection method

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