Component Mounting Device Imaging Timing Control

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Solution Overview

Problem

Existing component mounting devices experience latency due to the need to stop the mounting head for imaging, leading to increased production time when correcting the target lowering position.

Innovation Solution

A component mounting device with a control unit that determines imaging timing based on predicted arrival timing, allowing the imaging portion to image the vicinity of the mounting position during the movement of the mounting head, thereby acquiring height information and correcting the target lowering position without stopping the head, thus reducing latency and production time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the mounting head stops for imaging to correct the target lowering position, then the position correction accuracy is improved, but the production time increases due to latency

Engineering Contradiction:

Improveposition correction accuracyVSAvoidproduction time

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The imaging portion captures images of the mounting position before the mounting head arrives, allowing position correction to be prepared in advance. The control unit calculates the actual position and determines the corrected lowering position during the mounting head's movement, so that correction is ready when the head reaches the target, eliminating the need to stop for imaging.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The imaging portion continuously or repeatedly images the mounting position during the mounting head's movement, ensuring that imaging action continues without interruption. This allows position correction to be performed during movement rather than requiring a stop, maintaining continuous productive action while achieving accurate correction.

Inventive Principle:

Principle #20Continuity of useful action

2Productivity

If the imaging portion images during the movement of the mounting head, then the production time is reduced by preventing latency, but the imaging timing control complexity increases

Engineering Contradiction:

Improveproduction timeVSAvoidimaging timing control complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The control unit determines imaging timing based on feedback about the mounting head's predicted arrival timing at the mounting position. By using the predicted arrival timing as a reference, the system can dynamically adjust when imaging should occur during movement, ensuring accurate positioning correction while maintaining efficient production timing.

Inventive Principle:

Principle #23Feedback

3Productivity

If the mounting head moves continuously without stopping, then the production efficiency is improved, but the precision of position correction may deteriorate

Engineering Contradiction:

Improveproduction efficiencyVSAvoidposition correction precision

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The system performs preliminary imaging and position calculation during the mounting head's approach movement, preparing the correction data in advance. This allows the mounting head to maintain continuous movement while the correction is already calculated and ready, ensuring both high efficiency and precise correction without requiring a stop.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10842060B2Component mounting device

Publication Date: 2020.11.17 YAMAHA MOTOR CO LTD

AI summary

A component mounting device includes a control unit that at least controls an imaging portion to image a vicinity of a mounting position during movement of a mounting head, acquires height information in the vicinity of the mounting position based on an imaging result of the imaging portion, and corrects a target lowering position of the mounting head based on the acquired height information in the vicinity of the mounting position.