Holding Head Lead Imaging for Faster Multi-Component Positioning
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Solution Overview
Problem
In work machines equipped with holding heads and component holding tools, the time required to image components is lengthy due to individual imaging of components held by multiple suction nozzles, which hampers efficient processing.
Innovation Solution
A work machine configuration with a holding head that can move in multiple directions, equipped with side lighting and a control device that allows simultaneous imaging of leads from multiple components by lowering the holding head to enter the lighting range, enabling collective imaging and position calculation of multiple components using reflected light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If components are imaged individually by moving the holding head to each component position, then imaging precision can be maintained, but the total imaging time increases significantly
Solution Approach 1:
The patent merges multiple individual imaging operations into a single collective imaging operation. By lowering the holding head with multiple component holders to enter the lighting range of side lighting, all components are imaged simultaneously in one operation rather than moving to each component position separately. This combining approach maintains imaging precision while dramatically reducing total imaging time.
Solution Approach 2:
The patent transitions from a horizontal imaging approach (moving the holding head to each component position) to a vertical imaging approach (lowering the holding head to enter the lighting range). By changing the dimension of movement from horizontal traversal to vertical positioning, the system enables simultaneous imaging of multiple components without compromising precision, thus resolving the time-consuming issue of individual imaging.
2Productivity
If the holding head is lowered to collectively image multiple components, then imaging time is reduced, but the complexity of coordinating multiple component holders increases
Solution Approach 1:
The holding head is designed with multi-functionality, serving both as a positioning mechanism and as a collective imaging platform. By integrating multiple component holders into a single movable unit that can be lowered together, the system achieves simultaneous imaging of multiple components. This universal design reduces the need for separate imaging mechanisms for each component, thereby improving productivity while managing coordination complexity through unified control.
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
This approach significantly reduces the time needed for imaging components, enhancing the efficiency of the component mounting process by allowing the positions of multiple components to be calculated and imaged in a single operation, thereby shortening the cycle time.
Implementation Method 1
image the leads of the at least two components based on reflected light of the side lighting that is reflected by the leads of the components
Data Source
AI summary
A work machine including a holding head provided with multiple component holding tools; a moving device configured to move the holding head in a horizontal plane direction and a vertical direction; an imaging device provided with side lighting configured to emit light from a side direction onto leads of the components held by the component holding tools; and a control device, the control device is provided with a first lowering instruction section configured to lower the holding head such that the leads of at least two components held by at least two of the multiple component holding tools enter a lighting range of the side lighting, a first imaging instruction section configured to image the leads of the at least two components based on reflected light of the side lighting that is reflected by the leads of the components.