Component Mounter Optical Device for Multi-Target Imaging
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Solution Overview
Problem
The increase in the number of suction nozzles as imaging targets narrows their occupied area in the left-right direction of image data, making accurate placement challenging and potentially causing components held by the suction nozzle to fall outside the image data due to dimensions or holding state issues.
Innovation Solution
A component mounter configuration that includes a mounting head capable of lifting and lowering holding members, a camera device imaging targets within its visual field, and an optical device forming light paths to align multiple imaging targets in both the row and column directions, allowing simultaneous imaging and securing sufficient occupied area for each target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of suction nozzles constituting imaging targets is increased, then the imaging coverage is improved, but the occupied area of each suction nozzle in the left-right direction of image data is narrowed
Solution Approach 1:
The patent changes the arrangement pattern of multiple imaging targets from a horizontal line (left-right direction) to a grid pattern combining both row and column directions. This dimensional change allows the camera to capture multiple suction nozzles while maintaining sufficient occupied area for each target by distributing them in two dimensions rather than compressing them along a single axis.
2Quantity of substance
If the occupied area of each suction nozzle is narrowed, then more suction nozzles can be imaged simultaneously, but the placement accuracy requirement increases and components may fall outside image data
Solution Approach 1:
By arranging imaging targets in a grid pattern with both row and column directions, the patent increases the effective imaging area coverage without requiring high placement accuracy for each individual target. The two-dimensional distribution allows components to remain within the expanded image boundaries even with normal placement tolerances.
3Productivity
If multiple imaging targets are aligned in the left-right direction, then they can be imaged simultaneously, but the occupied area for each target in the left-right direction is insufficient
Solution Approach 1:
The patent transitions from a one-dimensional horizontal alignment to a two-dimensional grid arrangement incorporating both row and column directions. This enables simultaneous imaging of multiple targets while distributing them across both horizontal and vertical axes, thereby securing sufficient occupied area for each target in the left-right direction.
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 configuration ensures that multiple imaging targets are imaged within the camera's visual field, deviating in both left-right and up-down directions, thereby securing a sufficient occupied area for each target, reducing the required placement accuracy and maintaining accurate component positioning.
Implementation Method 1
an optical device configured to form a light path enabling three or more imaging targets like the imaging target to fall within the camera visual field
Data Source
AI summary
A component mounter including a camera device provided on a mounting head and configured to image an imaging target that falls within a camera visual field, and an optical device configured to form light paths corresponding individually to three or more imaging targets each including at least one of a holding member, a component held by the holding member, and a constituent member of the mounting head and configured to collect the three or more light paths so formed so as to enable the imaging targets to fall within the camera visual field while being aligned in a row direction and a column direction in the camera visual field.