Nozzle Positioning for Simultaneous Component Suction
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Solution Overview
Problem
In component mounting machines, simultaneously suctioning two components results in alignment challenges, leading to positional deviations, which can hinder the efficient suction of minute components.
Innovation Solution
A component mounting machine with multiple nozzles and a control device that prioritizes positional correction for the smallest component, allowing simultaneous suction of multiple components by positioning and aligning nozzles to face component supply positions, ensuring accurate suction of minute components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple components are suctioned simultaneously by multiple nozzles, then productivity is improved, but alignment precision deteriorates leading to positional deviations
Solution Approach 1:
The control device performs preliminary alignment adjustment of multiple nozzles before simultaneous suctioning operation. The system pre-positiones nozzles to face respective component supply positions accurately, ensuring proper alignment is established before the actual simultaneous suctioning process begins, thereby resolving the contradiction between speed and precision.
2Reliability
If average positional deviation control is used for multiple nozzles, then overall alignment is maintained, but minute components cannot be suctioned reliably
Solution Approach 1:
The control device applies different alignment control strategies to different nozzles based on their specific requirements. For nozzles facing minute components, stricter alignment control is applied, while for larger components, average positional deviation control is acceptable. This localized quality approach ensures reliable suctioning of minute components while maintaining overall system efficiency.
3Manufacturing precision
If individual alignment adjustment is performed for each nozzle, then suction precision is improved, but processing time increases
Solution Approach 1:
The control device merges the alignment adjustment operations for multiple nozzles into a coordinated simultaneous adjustment process. Instead of adjusting each nozzle individually in sequence, the system synchronizes the positioning of multiple nozzles to face their respective component supply positions at the same time, thereby reducing total adjustment time while maintaining precision.
Data Source
AI summary
A component mounting machine includes multiple component supplying devices, a head, a head moving device, and a nozzle lifting and lowering device. The component supplying device feeds out a component to a component supply position. The head includes multiple nozzles configured to suction a component. The head moving device moves the head to cause the nozzles to face the respective component supply positions with two or more thereof. The nozzle lifting and lowering device lifts and lowers the nozzle located to face the component supply positions. In positioning the nozzles to face the respective component supply positions, the head is moved so as to prioritize a positional correction of a nozzle facing a smallest sized component over positional corrections of the other nozzles, and in this state, the nozzles facing the respective component supply positions are lifted and lowered simultaneously to suction corresponding components.