Wall Assembly Tool Holder Unlocking for Stuck Bit Changes

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Solution Overview

Problem

Existing assembly devices for wall operations require manual intervention when tools get stuck, preventing automated drill bit changes and hindering efficient assembly processes.

Innovation Solution

An assembly device with a controllable unlocking mechanism and a mechatronic installation component, allowing for automated tool change by releasing the tool holder from any position, enabling the assembly device to move away from stuck tools and facilitating automated tool exchange.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If the drill bit is stuck in the borehole and cannot be removed, then manual intervention is required, but automated tool changes are prevented

Engineering Contradiction:
Improveautomated tool changeVSAvoidtool removal reliability
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The release device is activated before attempting to remove the drill bit, ensuring the tool holder is in the unlocked state. This preliminary action allows the assembly device to be moved away from the borehole, and the drill bit is subsequently removed by the mechatronic installation component, enabling automated tool changes even when the drill bit appears stuck during drilling

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The release device acts as an intermediary mechanism between the control system and the tool holder. By introducing this intermediate unlocking mechanism, the system can reliably release the drill bit regardless of drilling conditions, enabling the mechatronic installation component to automatically remove and replace tools without manual intervention

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the assembly device must be moved to a specific position to remove the drill bit, then automated bit changes are possible, but the device complexity increases and operation becomes more difficult

Engineering Contradiction:
Improvetool removal operationVSAvoidpositioning system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The tool holder is segmented into locked and unlocked states through the release device. This segmentation allows the tool holder to be independently controlled without requiring the entire assembly device to be repositioned. The mechatronic installation component can grasp and remove the drill bit separately, simplifying the overall operation and reducing device complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The release device enables the tool holder to automatically transition to the unlocked state when activated, without requiring manual manipulation or complex positioning of the assembly device. The mechatronic installation component then automatically grasps and removes the drill bit, making the system self-sufficient and easier to operate

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4100217B1Assembly device for carrying out assembly steps on a wall and method for changing a tool of an assembly device
Publication Date: 2023.08.23 INVENTIO AG
  • EP4100217B1 patent drawingFigure 1~2
  • EP4100217B1 patent drawingFigure 3~4

AI summary

The invention relates to an installation device for carrying out installation steps on a wall and to a method for exchanging a tool held by an installation apparatus. The installation device comprises an installation apparatus (10), which has a drive unit (12) and a tool holder (16). The tool holder (16) is coupled to the drive unit (12) and is provided for holding a tool (22), which extends away from the tool holder (16) in a tool direction (14) and can be driven by the drive unit (12). The tool holder can assume a locked state and an unlocked state. A tool (22) held by the tool holder (16) can be removed from the tool holder (16) when the tool holder is in the unlocked state, and is fixed in the tool holder (16) and thus cannot be removed when the tool holder is in the locked state. The installation apparatus (10) has an unlocking device (28) having a controllable actuator (30, 32), which unlocking device is designed and arranged such that, by means of the actuator (30, 32), the tool holder (16) can be brought from the locked state to the unlocked state and thus the tool (22) can be released.