Pressing Tool Head Locking for Safe Actuation and Rotation
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Solution Overview
Problem
Existing pressing tools lack a reliable mechanism to ensure that the interchangeable instrument head is correctly inserted and locked into the instrument seat before the tool can be actuated, posing safety risks and potential damage.
Innovation Solution
A mechanical safety element that moves from an open to a closed position to lock the instrument head in place, interacting with a movable actuating element to enable the pressing tool only when the head is correctly inserted, and a rotatable instrument seat with a circular actuating element that triggers a sensor for safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical safety element is added to lock the instrument head, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The safety element is integrated into the instrument seat structure, merging the locking function with the existing seat components. The actuating element is combined with the instrument head interface, eliminating separate locking mechanisms and reducing overall device complexity while maintaining safety functionality.
Solution Approach 2:
The safety element automatically engages when the instrument head is correctly inserted into the instrument seat, without requiring separate manual locking actions. The system self-activates the safety lock through the insertion motion itself, simplifying the user interaction while ensuring reliable locking.
2Ease of operation
If the instrument seat is made rotatable for 360° flexibility, then ease of operation is improved, but the risk of signal line damage increases
Solution Approach 1:
The instrument seat is designed with rotational freedom, allowing dynamic repositioning to 360 degrees for optimal working angles. The dynamic capability enables the user to rotate the seat to the most convenient orientation without being constrained by fixed positioning, significantly improving ease of operation.
Solution Approach 2:
A rotary joint or bearing mechanism serves as an intermediary between the fixed housing and the movable instrument seat, enabling smooth rotation while protecting signal lines. The intermediary component absorbs mechanical stress and prevents direct transmission of damaging forces to the signal lines during rotational movements.
Data Source
AI summary
A pressing tool for plastically deforming a workpiece is described. The pressing tool includes a housing and an electric motor for actuating the pressing tool. The pressing tool also includes an instrument seat which is adapted to receive an interchangeable instrument head at the housing. The pressing tool also includes a mechanical safety element which is arranged in a manner that is movable from an open position, in which an instrument head may be inserted into the instrument seat, into a closed position, in which the instrument head is locked in the instrument seat. The pressing tool additionally includes a mechanical actuating element which may interact with the safety element in order to be able to cause the pressing tool to be enabled for a pressing process.