Detection system of light distribution characteristic of ellipsoid unit and method thereof

Abstract

The invention provides a detection system of a light distribution characteristic of an ellipsoid unit. The detection system comprises a rotary table for placing a plurality of ellipsoid units, and further comprises a rotary part, a positioning locking part, a picking-placing part, a light detection signal transmitting part, a light type collecting part and a control part, wherein the rotary part comprises a servo controller, a servo motor and a main shaft; the positioning locking part comprises an approach switch set, a position encoding bolt set and a positioning air cylinder on the rotary table, a positioning pin and a positioning hole on the rotary table; the picking-placing part comprises a one-way electric air valve, a clamping claw air cylinder, an air faucet, and a clamping claw air opening and a clamping claw on the rotary table; the light detection signal transmitting part comprises an LIN (Local Interconnect Network) controller, a CAN (Controller Area Network) controller and an electric mortiser plug; the light type collecting part comprises a convex lens, an imaging screen and a camera, and is used for obtaining light type distribution images of the ellipsoid units; and the control part comprises an industrial personal computer and a digital I / O (Input / Output) card connected with the industrial personal computer, and is used for controlling the rotary part, the positioning locking part, the picking-placing part, the light detection signal transmitting part and the light type collecting part, and analyzing the light type distribution images to obtain a detection result of the light distribution characteristic.

Description

technical field [0001] The invention relates to a system and a detection method for detecting the light distribution characteristics of an ellipsoid unit of an automobile headlamp. Background technique [0002] The use of ellipsoidal units in automobile headlights is the development trend of automobile headlight assembly technology. As a new type of high beam and low beam components, the ellipsoid unit is gradually being popularized and applied. The ellipsoid low beam headlight can greatly improve the luminous efficiency of the low beam, especially in improving the light distribution performance (light illuminance, light distribution, etc.) Uniformity) while solving the glare problem. [0003] The light distribution characteristics of the ellipsoid determine the light distribution performance of the automobile headlight assembly, so the ellipsoid unit must be strictly adjusted before assembly to ensure that the light meets the standard. [0004] Ellipsoid units currently m...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a multi-station ellipsoidal unit light distribution characteristic detection system, which can realize the preheating of multiple stations at the same time that one station performs light inspection during the detection process, and solves the problem of single preheating detection. The detection efficiency of the mode is too low, which greatly improves the detection efficiency of the light distribution characteristics of the ellipsoidal unit

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