Modular Workpiece Removal Cell for Flexible Bin Picking

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Solution Overview

Problem

Existing devices for automated removal of workpieces from containers are costly and time-consuming to design, manufacture, and assemble, as they are typically customized for specific applications.

Innovation Solution

A modular device composed of a handling module with gripper kinematics and a feed module that includes an object recognition system, allowing for interchangeable modules and simplified assembly, enabling the same handling module to be adapted with different feed and output modules to meet specific functional requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If devices are customized individually for each specific application, then the device can take into account very special circumstances, but the costs and assembly time increase significantly

Engineering Contradiction:
Improveadaptability to special circumstancesVSAvoidconstruction and assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device is divided into separate functional modules: a handling module with gripper and robot, a feed module with container arrangement, and an output module with workpiece storage. Each module can be independently configured, manufactured, and assembled, reducing overall complexity while maintaining adaptability through modular combinations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handling module is designed as a universal component that can be equipped with different feed modules and output modules depending on the specific application requirements. This allows the same core handling module to serve multiple functions across different applications, reducing customization costs while adapting to special circumstances.

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

2Adaptability or versatility

If devices are customized individually for each specific application, then the device can take into account very special circumstances, but the manufacturing time increases significantly

Engineering Contradiction:
Improveadaptability to special circumstancesVSAvoidmanufacturing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

By segmenting the device into standardized modules, each module can be manufactured independently and in parallel. The handling module, feed module, and output module can be produced separately and then assembled, dramatically reducing total manufacturing time compared to building custom integrated devices for each application.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular components can be pre-manufactured, pre-tested, and pre-assembled into sub-systems before final integration. This preliminary preparation allows for efficient final assembly and reduces on-site manufacturing time, enabling rapid deployment while maintaining application-specific adaptability.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If the device is constructed modularly from handling module and feed module, then construction and assembly are simplified, but integration requirements increase

Engineering Contradiction:
Improveconstruction and assembly easeVSAvoidintegration complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The device is divided into separate functional modules: a handling module with gripper and robot, a feed module with container arrangement, and an output module with workpiece storage. Each module can be independently configured, manufactured, and assembled, reducing overall complexity while maintaining adaptability through modular combinations.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2952297B1Supply module and device with such a module for the automated removal of workpieces arranged in a container
Publication Date: 2023.01.11 LIEBHER VERZAHNTECHNIK GMBH
  • EP2952297B1 patent drawingFigure 1
  • EP2952297B1 patent drawingFigure 2a~2b
  • EP2952297B1 patent drawingFigure 3

AI summary

The present invention relates to a device for the automated removal of workpieces arranged in a container, comprising an object recognition device for detecting the workpieces and a gripper for grasping and removing the workpieces from the container, and a control system for evaluating the data from the object recognition device, for path planning, and for controlling the gripper. The device is modularly constructed from a handling module and a feeding module, wherein the handling module comprises the gripper kinematics, in particular a robot or a gantry, and the feeding module comprises an arrangement for providing a container with workpieces.