Component Mounting Device Multi-Direction Imager Position Measurement
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Solution Overview
Problem
Existing component mounting devices require movement of measurement positions to determine both height and horizontal positions of component feeding locations, increasing the time required for the component suction operation.
Innovation Solution
A component mounting device with an imager capable of capturing images from multiple directions, allowing simultaneous acquisition of horizontal and vertical positions without moving the head unit, and a controller to correct and determine the presence of components based on these images, enabling concurrent imaging and suction operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical distance sensor is moved to a different position to measure the height position of the component feeding location, then the height position can be measured, but the time required for the component suction operation increases
Solution Approach 1:
The patent combines the height position measurement function and horizontal position imaging function into a single imager located on the head unit. The imager captures images from multiple directions (including oblique angles) to simultaneously obtain both height and horizontal position information, eliminating the need to move the head unit between measurements and thus reducing operation time.
Solution Approach 2:
The patent uses oblique imaging from multiple directions to extract three-dimensional position information (including height) from two-dimensional images. By capturing images at different angles and using image processing to calculate depth and height, the system obtains full 3D position data without physically moving the measurement device, thereby reducing time loss.
2Measurement precision
If separate measurement devices are used for height position and horizontal position, then measurement accuracy can be maintained, but the complexity of the device increases
Solution Approach 1:
The patent makes the imager on the head unit perform multiple functions: it serves as both the height position measurement device (through oblique imaging and depth calculation) and the horizontal position imaging device (through top-down or angled imaging). This multi-functional design eliminates the need for separate measurement devices while maintaining measurement accuracy through image processing algorithms.
Solution Approach 2:
The patent uses optical imaging to create a visual copy of the component feeding location from multiple directions. By processing these optical copies (images) to extract position information, the system avoids the need for physical contact or multiple specialized sensors, thereby simplifying the device while preserving measurement precision.
Data Source
AI summary
A component mounting device includes a head unit including a mounting head configured to mount a component on a substrate, a component feeder configured to feed the component to the mounting head, and an imager provided on the head unit and configured to be able to image a component feeding location of the component feeder from a plurality of directions. The component mounting device further includes a controller configured to acquire a horizontal position and a vertical height position of the component at the component feeding location based on images of the component feeding location captured from the plurality of directions by the imager.