Dynamic Workpiece Positioning With Sensor-Guided Cut Optimization

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Solution Overview

Problem

Traditional machine centers lack efficient and cost-effective optimization methods for workpiece positioning, requiring expensive upgrades and significant downtime due to the need for new scanners and control system upgrades.

Innovation Solution

A dynamically directed workpiece positioning system that uses sensors and computer systems to detect and reposition workpieces based on actual and desired positions, allowing for continuous optimization and cut solution calculation, reducing the need for costly hardware upgrades by integrating with existing systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional optimization methods are implemented in machine centers, then positioning precision and productivity are improved, but device complexity and cost increase significantly

Engineering Contradiction:
Improveworkpiece positioning precisionVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The scanner is integrated into the existing infeed system, allowing it to serve multiple functions: detecting workpiece position, providing data for optimization calculations, and coordinating with the machine center controls. This multi-functionality reduces the need for separate dedicated optimization hardware.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The optimization system merges the scanner, infeed system, and machine center controls into a unified coordinated system. The scanner data is integrated with the existing controls to dynamically adjust workpiece positioning, combining multiple subsystems into a cohesive optimization solution.

Inventive Principle:
Principle #5Merging (Combining)

2Manufacturing precision

If scanner and control system upgrades are implemented, then workpiece positioning optimization is achieved, but loss of time due to installation and downtime increases

Engineering Contradiction:
Improveworkpiece positioning precisionVSAvoidinstallation and downtime
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The scanner is positioned to detect workpiece characteristics before the workpiece enters the machine center processing area. This preliminary detection allows optimization calculations to be performed in advance, so that positioning adjustments can be made without delaying the actual processing operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system maintains continuous operation by performing optimization calculations and positioning adjustments without interrupting the workpiece flow. The scanner operates continuously to track workpiece position, and the controls continuously adjust positioning while the workpiece is being conveyed, ensuring uninterrupted processing.

Inventive Principle:
Principle #20Continuity of useful action

3Productivity

If expensive scanner and control upgrades are purchased, then optimization capability is improved, but cost increases significantly

Engineering Contradiction:
Improvepiece rateVSAvoidupgrade cost
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system uses the existing infeed system and controls to perform optimization functions. The scanner provides workpiece position data, and the existing controls automatically adjust positioning based on this data, allowing the system to optimize its own operation without requiring expensive dedicated optimization hardware.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces complex mechanical positioning mechanisms with a sensor-based detection and control-based adjustment approach. Instead of using expensive mechanical optimization devices, the system uses scanner detection combined with software-based optimization calculations and electronic control signals to achieve precise positioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3174666B1Dynamically directed workpiece positioning system
Publication Date: 2021.07.07 USNR LLC
  • EP3174666B1 patent drawingFigure 1A
  • EP3174666B1 patent drawingFigure 1B
  • EP3174666B1 patent drawingFigure 1C

AI summary

In various embodiments, a dynamically directed workpiece positioning system may include a transport, a sensor positioned to detect a workpiece on the transport, a cutting member positioned along or downstream of the transport, and a computer system. The sensor may scan the workpiece as the workpiece is moved relative to the transport by a human operator or a positioning device. Based on the scan data, the computer system may generate commands to guide the human operator or positioning device in moving the workpiece to a desired position corresponding to a cut solution for the workpiece. Optionally, the computer system may cause the cutting member to be repositioned while the workpiece is being moved relative to the transport. Once the workpiece is in the desired position, the transport may be used to move the workpiece toward the cutting member. Corresponding methods and apparatuses are also disclosed.