A special test fixture for a vehicle camera

Abstract

The invention discloses a test fixture special for a vehicle camera. A camera assembly is precisely positioned by a stop surface and positioning holes on a fixing bracket. After the positioning is completed, an operating handle is used to overturn a pressing block to allow a pressing plate and a camera shell profile to attach to each other; when the pressing block is pressed downward, an upper guide block and a lower guide block of a pressing mechanism in a self-locking pressing mechanism match each other to achieve guiding; limiting holes formed in the pressing block match pressing block limiting columns on the fixing bracket to perform limiting; after the profile is completely and accurately attached, a latch of the pressing mechanism is pressed to lock a groove formed in a pressing mechanism lower fixing seat to ensure pressing and achieve self-locking; and the camera assembly clamped by the positioning pressing locking step can overturn arbitrarily, the test accuracy is not affected, and accurate positioning, reliable pressing, and good dynamic and static stiffness of the fixture can be effectively achieved.

Description

Technical field [0001] The invention relates to the field of machinery and vehicles, in particular to a special test fixture for a vehicle camera. Background technique [0002] In recent years, intelligent vehicles have become a research hotspot in the field of vehicle engineering in the world and a new driving force for the growth of the automotive industry. Countries all over the world have incorporated them into the key development of intelligent transportation systems. [0003] As the "eyes" of smart cars, advanced car cameras can perceive and recognize the surrounding environment of the vehicle and realize intelligent information interaction between the information terminal and people, cars, roads, etc. [0004] In order to ensure the use of advanced vehicle cameras, it is necessary to accurately test and adjust them and the assembly parts (such as rear-view camera assembly) composed of them. The current special test fixture for vehicle cameras is very simple, and there are few...

AI Technical Summary

Problems solved by technology

The problems of these simple test fixtures mainly include insufficient positioning accuracy, lack of self-locking clamping force and low repeatability of measurement results, etc.

[0005] The main reasons for these problems are the fixture positioning method and the improper design of the clamping mechanism, as well as the insufficient dynamic and static stiffness of the fixture itself.

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