Robot Tool Holder Coupling for Switchgear Processing

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Solution Overview

Problem

Existing automated systems for processing control cabinet housings and flat parts are complex and costly, making them impractical for smaller batch sizes, leading to high labor costs and error susceptibility due to the need for multiple tools and manual processing.

Innovation Solution

A tool holder with a coupling for easy attachment and detachment from a robot, allowing the use of commercially available tool devices like routers, drills, and riveters, which can be gripped and maneuvered by a robot for efficient processing of control cabinet components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If automated processing systems are used for control cabinet components, then productivity and quality are improved, but device complexity and cost increase significantly

Engineering Contradiction:
Improveprocessing throughputVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements a universal robot system that can perform multiple processing functions (drilling, countersinking, slotting, routing, etc.) using a single robotic manipulator with interchangeable tool holders. This eliminates the need for multiple specialized automated machines, reducing system complexity while maintaining high productivity through automated operation.

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

Solution Approach 2:

The system uses adjustable gripper jaws with variable spacing that can accommodate different tool holder sizes and geometries. The gripper geometry can be adapted to match different adapter piece configurations, allowing the same robot system to handle various tools without requiring multiple fixed-configuratio

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple specialized tools are used for different processing operations, then processing capability is improved, but device complexity and acquisition cost increase

Engineering Contradiction:
Improveprocessing capabilityVSAvoidnumber of tools
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single robot system performs multiple processing functions (drilling, countersinking, slotting, routing, etc.) through interchangeable tool holders, eliminating the need for multiple specialized automated machines while maintaining comprehensive processing capability.

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

Solution Approach 2:

The tool holder system is divided into modular components: a standardized holder body with coupling features, and interchangeable adapter pieces that can be attached or removed based on the specific tool being used. This segmentation allows versatile tool functionality while keeping the base system simple and reusable.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If manual processing is used for smaller batch sizes, then cost is reduced, but labor costs and error susceptibility increase

Engineering Contradiction:
Improvecost-effectivenessVSAvoiderror susceptibility
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The robot system with automated tool changing capability can service itself by gripping and positioning different tool holders as needed, enabling automated processing for small batches without requiring complex manual intervention or specialized equipment for each operation type.

Inventive Principle:
Principle #25Self-service

4Ease of manufacture

If commercially available tool devices are used, then cost is reduced, but ease of integration with robot system worsens

Engineering Contradiction:
ImprovecostVSAvoidintegration complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The standardized tool holder acts as an intermediary between commercially available tools and the robot gripper. It provides a universal coupling interface that adapts various tool geometries to the robot's gripper system, enabling easy integration of off-the-shelf tools without custom modifications.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3978206A1Arrangement for the processing of a switchgear cabinet or a flat switchgear part
Publication Date: 2022.04.06 RITTALWERK RUDOLF LOH GMBH & CO KG
  • EP3978206A1 patent drawingFigure 1
  • EP3978206A1 patent drawingFigure 2
  • EP3978206A1 patent drawingFigure 3

AI summary

The invention relates to an arrangement for machining a control cabinet housing or a control cabinet flat part, comprising a robot (100) and a tool module (1) held by the robot (100), which has a tool device (2) with a driven tool (3) for machining a material, wherein the tool device (2) is detachably attached to a tool holder (4), characterized in that the tool holder (4) has a coupling (5) on its outside for connecting the tool holder (4) to the robot (100) and for separating the tool holder (4) from the robot (100).