Actuated Tool Holder Unlocking for Stuck Wall Drill Exchange
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Solution Overview
Problem
Existing installation devices for wall operations, such as drilling machines, require manual intervention when drill bits become stuck, disrupting automated tool exchange processes.
Innovation Solution
Incorporating a controllable unlocking device with an actuator into the installation apparatus, allowing the tool holder to be unlocked and tools to be removed or inserted regardless of the device's position, enabling automated tool exchange and minimizing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the installation apparatus is brought into a predetermined position relative to the exchanging device to remove a drill bit, then the drill bit can be removed and exchanged automatically, but if the drill bit becomes stuck in the drilled hole, the installation apparatus cannot be moved to the exchanging device and manual intervention is required
Solution Approach 1:
The tool holder is segmented into a body and a separable locking sleeve, allowing the locking mechanism to be independently actuated. This segmentation enables the tool holder to be unlocked without moving the entire installation apparatus, resolving the contradiction by decoupling the unlocking function from the apparatus positioning requirement.
Solution Approach 2:
The unlocking device with actuator is integrated into the installation apparatus, enabling the tool holder to be unlocked in advance before tool exchange is needed. This preliminary unlocking capability ensures that even if a tool becomes stuck, the apparatus can be repositioned and the tool removed, maintaining automation and reliability.
2Ease of operation
If the drill bit is pressed into a recess in the exchanging device adapted to the tool holder to remove the drill bit, then automated exchange is possible, but the installation apparatus must be in a specific position which limits flexibility
Solution Approach 1:
The tool holder is designed with an integrated locking sleeve that can be actuated by an unlocking device on the installation apparatus itself. This self-service design eliminates the need for an external exchanging device with adapted recesses, allowing tool removal without specific positioning requirements and enhancing both ease of operation and positioning flexibility.
3Manufacturing precision
If the tool holder locks the tool firmly during drilling operations, then drilling precision and stability are improved, but the tool cannot be removed without unlocking mechanisms
Solution Approach 1:
The tool holder is divided into a body and a locking sleeve that can move independently along the tool direction. This segmentation allows the locking mechanism to be simplified while maintaining firm tool holding during drilling, as the locking sleeve engages with specific features on the tool shank without requiring complex multi-component mechanisms.
Solution Approach 2:
The locking sleeve is designed to dynamically transition between locked and unlocked states through actuation in the tool direction. This dynamic capability allows the tool holder to provide firm locking during drilling operations while enabling easy tool removal when needed, balancing precision requirements with operational flexibility without increasing overall device complexity.
Data Source
AI summary
An installation device for carrying out installation steps on a wall, and a method for exchanging a tool received by the installation apparatus, include an installation apparatus having a drive unit coupled to a tool holder. The tool holder receives a tool that extends away from the tool holder in a tool direction and which tool is driven by the drive unit. The tool holder can assume a locked state and an unlocked state, wherein a tool received by the tool holder can be removed from the tool holder in the unlocked state and is fixed in the tool holder, and therefore cannot be removed, in the locked state. The installation apparatus has an unlocking device controllable by an actuator and the tool holder can be brought from the locked state into the unlocked state by the actuator to release the tool.