Workpiece Inversion Robot Synchronization for Continuous Throughput

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Solution Overview

Problem

Existing automated mass production systems lack efficient methods for inverting workpieces in a synchronized and continuous manner, which hampers production efficiency.

Innovation Solution

A method and system involving a carrier and a pick-and-place robot with synchronized end effectors that electronically invert workpieces by 180 degrees in alignment with carrier movement, ensuring uninterrupted translation and rotation for continuous inversion cycles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional automated systems are used for workpiece inversion, then automation is achieved, but production efficiency and throughput are reduced due to lack of synchronization and continuous operation

Engineering Contradiction:
Improveproduction efficiencyVSAvoidsynchronization capability
Core Design Contradiction:
ProductivityVSExtent of automation

Solution Approach 1:

The system employs electronic synchronization between the carrier advancement mechanism and the end effector robot, creating a closed-loop feedback system that coordinates movements to achieve continuous workpiece inversion without interrupting the production flow

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The invention enables continuous inversion cycles by synchronizing the end effector's pick-and-place operations with the carrier's continuous advancement, eliminating idle time and maintaining uninterrupted production throughput

Inventive Principle:
Principle #20Continuity of useful action

2Productivity

If workpiece inversion is performed manually or with simple mechanisms, then operational complexity is low, but production throughput and synchronization capability are reduced

Engineering Contradiction:
ImprovethroughputVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The end effector robot serves multiple functions including gripping workpieces, rotating them 180 degrees, and placing them back on carriers, while the synchronized control system manages both carrier advancement and robot operations within a single integrated platform

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

Solution Approach 2:

The electronic synchronization system acts as an intermediary that coordinates between the mechanical carrier advancement and the robotic end effector operations, enabling complex synchronized movements without requiring direct mechanical coupling

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If continuous inversion cycles are implemented, then production efficiency improves, but synchronization precision requirements increase

Engineering Contradiction:
Improveinversion cycle speedVSAvoidsynchronization precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

Electronic sensors and controllers continuously monitor the positions of carriers and end effectors, providing real-time feedback that adjusts timing and positioning to maintain precise synchronization even at high inversion cycle speeds

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts the timing and speed of end effector operations based on carrier position and workload, enabling flexible synchronization that maintains precision across varying production rates

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4068021B1Automated workpiece inversion systems and related methods
Publication Date: 2026.02.11 ATS CORPORATION
  • EP4068021B1 patent drawingFigure 1
  • EP4068021B1 patent drawingFigure 2
  • EP4068021B1 patent drawingFigure 3

AI summary

A method of inverting workpieces in a mass production process includes: advancing an end effector in electronic synchronization with advancement of a carrier to synchronize arrival of the carrier at a stop position with arrival of the end effector at an unloading position, in which the end effector is in alignment with a workpiece held by the carrier for engaging the workpiece; while the end effector is in engagement with the workpiece, retracting the end effector away from the carrier to unload the workpiece from the carrier and advancing the end effector back toward the carrier to load the workpiece back into the carrier; and rotating the end effector relative to the carrier to invert the workpiece in electronic synchronization with the retracting and advancing of the end effector for loading the workpiece back into the carrier when inverted.