Movable Mirror Unit for Multi-View Camera in Component Mounting
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Solution Overview
Problem
Conventional component mounting devices require separate cameras to capture images of a suction nozzle tip, component held by the nozzle, and component supplying/mounting positions, leading to a complex configuration and reduced precision in mounting quality and failure analysis.
Innovation Solution
A component mounting device with a mounting head equipped with a suction nozzle and a common image capturing device, utilizing a mirror unit with multiple reflection surfaces that moves between advance and retreat positions to allow the same camera to capture images of the nozzle tip, held component, and component positions, simplifying the configuration and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate cameras are used to capture images of the suction nozzle tip, component held by the nozzle, and component supplying/mounting positions, then image capture coverage is improved, but device complexity increases
Solution Approach 1:
A single image capturing device is designed to perform multiple functions by capturing images of different objects (suction nozzle tip, component held by nozzle, component supplying position, and mounting position) through the use of a mirror unit that redirects the optical path, eliminating the need for separate cameras for each capture target
Solution Approach 2:
A mirror unit is introduced as an intermediary component to redirect the optical path of the image capturing device, enabling the single camera to capture images of the suction nozzle tip and component held by the nozzle by reflecting light from these otherwise inaccessible areas
2Measurement precision
If multiple separate cameras are installed to capture all necessary images, then measurement precision is improved, but the configuration becomes complicated
Solution Approach 1:
The single image capturing device is configured to capture images of multiple targets (component supplying position, mounting position, and suction nozzle area) by utilizing the mirror unit for optical path redirection, achieving comprehensive measurement capability without requiring multiple separate cameras
Solution Approach 2:
The mirror unit changes the optical path dimension by reflecting light at specific angles, allowing the image capturing device to access viewing angles that would otherwise require physically separate cameras positioned at different locations
3Device complexity
If a common image capturing device is used to capture images of both the suction nozzle area and component positions, then device complexity is reduced, but image capture capability may be compromised
Solution Approach 1:
The mirror unit serves as an optical intermediary that enables the common image capturing device to capture images of the suction nozzle tip and component held by the nozzle by reflecting light from these areas into the camera's optical path, preserving full image capture capability while using a single camera
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables improved precision in success/failure determination and cause analysis of mounting failures by using a single camera to capture all necessary images, reducing the complexity of the device and enhancing mounting quality.
Implementation Method 1
a mirror unit provided with a plurality of reflection surfaces and moved to an advance position where the plurality of reflection surfaces relatively advance into a viewing field of the image capturing device and refract on the optical axis for image capturing of the image capturing device
Implementation Method 2
a mirror unit provided with a plurality of reflection surfaces and moved to an advance position where the plurality of reflection surfaces relatively advance into a viewing field of the image capturing device
Data Source
AI summary
A mounting head is provided with suction nozzles, image capturing cameras, and a movable mirror unit. When the mirror unit is placed at an advance position, mirrors advance into a viewing field of the image capturing cameras and refract an optical axis for image capturing, so that the image capturing cameras can capture images of tips of the suction nozzles and/or held components. When the mirror unit is placed at a retreat position, the mirrors retreat from the viewing field of the image capturing cameras, so that the image capturing cameras can capture images of component supplying positions and mounting positions.