Component Mounting Tool Pinching Location Adjustment to Avoid Interference

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Solution Overview

Problem

Mechanical chuck nozzles with claw sections often interfere with mounted components during the release operation due to their design, which complicates the avoidance of interference compared to suction nozzles, as they have multiple pinching locations and protrude more during release, making it difficult to prevent interference with already mounted components.

Innovation Solution

A component mounting method and device that determine the pinching locations of the claw sections based on the component's shape, dimensions, and board coordinates to avoid interference, allowing for temporary definition and adjustment of pinching locations to prevent clashes with mounted components, using a combination of software calculation and control mechanisms to optimize the pinching and release operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mechanical chuck nozzle with claw sections is used to pinch and mount components, then the component can be securely held during transport, but the claw sections protrude from the component during release operation and interfere with already mounted components

Engineering Contradiction:
Improvecomponent holding stabilityVSAvoidinterference with mounted components
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary determination of pinching locations before the mounting operation. The pinching location determination unit calculates optimal pinching positions based on component shape data and board layout in advance, ensuring that the claw sections will not interfere with already mounted components during the release operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the pinching locations based on the specific component shape and board configuration. Rather than using fixed pinching positions, the pinching location determination unit calculates optimal positions for each component mounting operation, allowing the claw sections to be positioned such that they clear already mounted components during release.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the claw sections are designed to widen during release operation to ensure component release, then the component can be reliably released, but the protrusion of claw sections increases and interference with mounted components becomes more likely

Engineering Contradiction:
Improvecomponent release reliabilityVSAvoidinterference with mounted components
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system determines optimal pinching locations in advance that account for the claw section widening during release. By calculating pinching positions that consider the release trajectory and width expansion, the system ensures reliable component release while preventing interference with already mounted components.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the pinching location parameters based on component shape and board layout. By adjusting the pinching position coordinates calculated by the pinching location determination unit, the system optimizes the balance between release reliability and interference prevention for each specific mounting situation.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If multiple pinching locations are defined for different component shapes, then various components can be accommodated, but determining the correct pinching location becomes more complex and time-consuming

Engineering Contradiction:
Improvecomponent shape compatibilityVSAvoidpinching location determination complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The pinching location determination unit automatically determines optimal pinching locations based on component shape data and board layout information. The system self-services by calculating the appropriate pinching positions without requiring manual intervention or complex external control, thereby maintaining adaptability while reducing operational complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses parameter changes to adapt to different component shapes. The pinching location determination unit calculates optimal pinching position parameters based on the specific component geometry and board configuration, providing versatility across different component types while keeping the determination process systematic and manageable.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3177128B1Component mounting method and component mounting device
Publication Date: 2020.10.14 FUJI CORP
  • EP3177128B1 patent drawingFigure 1
  • EP3177128B1 patent drawingFigure 2~4
  • EP3177128B1 patent drawingFigure 5~6

AI summary

Disclosed is a component mounting method for using a component mounting tool which includes a plurality of claw sections that pinch and pick up a component at a component supply position, and release the component on a board to mount the component onto a predetermined position of the board, and which is mounted to be capable of moving between the component supply position and the board, the method including determining pinching locations of the component to be pinched by the plurality of claw sections such that positions and a release operation of the plurality of claw sections do not interfere with mounted components which are already mounted on the board when the plurality of claw sections release the component. Accordingly, it is possible to avoid positions and a release operation of the plurality of claw sections interfering with the mounted components when a component is released on the board to enable the mounting of the component.