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Cosmetic Quality Inspection Platform and Method

IP.com Disclosure Number: IPCOM000244277D
Publication Date: 2015-Nov-30
Document File: 4 page(s) / 492K

Publishing Venue

The IP.com Prior Art Database

Related People

Martin Kefer: AUTHOR [+2]

Abstract

In an assembly or production line cosmetic inspection is carried out in multiple stages involving parts of various sizes and material Cosmetic inspection focuses on the appearance of objects rather than its geometric completeness thus the outside surface of objects Such housings have 2 main functionalities enclosing and protecting inside parts from outside environment And an impeccable appearance that stands out compared to competitive devices and to attract consumers Such parts might be mobile phones laptops cars TVs During production cosmetic inspection is carried out at multiple stages almost exclusively performed by workers A principle setup is described which intends to fulfil 2 objectives an automated inspection solution for both a work cell and the factory floor and a flexible implementation strategy to handle various inspection scenarios depending on the part of interest

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Visual/Cosmetic Quality Inspection - Apparatus and Method

Background

An apparatus and a method is described and illustrated for cosmetic quality inspection in order to help the SPAI team in Shanghai to build and strengthen their market position. An apparatus is described for a single inspection cell, as well as the integration of multiple inspections cells on the factory floor.

In an assembly or production line cosmetic inspection is carried out in multiple stages, involving parts of various sizes and material. Cosmetic inspection focuses on the appearance of objects rather than its geometric completeness, thus, the outside surface of objects. Such housings have 2 main functionalities: enclosing and protecting inside parts from outside environment. And, an impeccable appearance that stands out compared to competitive devices, and to attract consumers. Such parts might be: mobile phones, laptops, cars, TVs,…

During production, cosmetic inspection is carried out at multiple stages, almost exclusively performed by workers. A principle setup is described which intends to fulfil 2 objectives: an automated inspection solution for both a work cell, and the factory floor, and a flexible implementation strategy to handle various inspection scenarios, depending on the part of interest.

Description

For example, when assembling a mobile phone, the housing consists of at least 2 parts, the housing holding the majority of components and a glass protecting the touchscreen. Minor components on the outside are buttons and connections ports. The housing and the glass screen need to have certain mechanical properties, but also need to fulfil appearance requirements. Also, those parts go through different processes in order to become a phone. Therefore, it is advisable to implement 2 or more inspection platforms. One configured to handle the metallic or plastic surface of the housing, and one inspection platform dealing with the glass screen.

The idea can be implement throughout a centralized control unit, organized in 3 levels, as shown in Figure 1. On the factory floor multiple cells are independently organized carrying out various inspection tasks.

On another level the centralized control unit is implemented. Its function is to inspect a part of interest and, therefore, making use of several tools, such as the camera, the robot, processing units (PU), etc. Its configuration includes multiple processing units which can be independently and flexibly implemented catering to the particular needs of the inspection requirements. The objective of the PU is to process the image and compute an arbitrary metric which logically relates to the quality of the part's surface in question.


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In addition, on a third level, the centralized control unit allows for multi-client access, similar to web servers. Thus, the camera or the previous computed data, for example, can be utilized in order to monitor the process.

Figure 1: Cosmetic Inspection on the...