Rotary Tool Coupling Geometry for Fast Balanced Torque Transfer
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Solution Overview
Problem
Existing connecting devices for tools on machine tools often require complex and time-consuming attachment methods, leading to inefficiencies in setup times and potential imbalance during rotation.
Innovation Solution
A connecting device comprising a positive connecting element with protrusions and a negative connecting element with a recess, allowing for secure connection by rotation, with symmetrical design to ensure balanced torque transmission in both directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional screw connections or quick-release fasteners with worm gear profile are used, then secure connection and torque transmission are achieved, but setup times increase and device complexity increases
Solution Approach 1:
The connection device is divided into two separate connecting elements: a positive connecting element with protrusions and a negative connecting element with corresponding recesses. This segmentation allows for rapid engagement by simply aligning and pushing the elements together, eliminating the need for complex screw threads or worm gear mechanisms while maintaining secure connection through the interlocking protrusion-recess geometry.
Solution Approach 2:
Instead of using traditional screw threads that require rotational tightening, the invention inverts the approach by using protrusions that engage with recesses in a single pushing motion. The connection is secured not by threading but by the complementary shapes of the protrusions and recesses, which lock together automatically upon engagement, thereby dramatically reducing setup time.
2Loss of time
If quick-release fasteners with worm gear profile are used, then rapid connection is achieved, but imbalance during rotation occurs due to off-center design
Solution Approach 1:
The invention uses asymmetric protrusions and corresponding asymmetric recesses that are strategically positioned to ensure symmetric load distribution during rotation. The protrusions have specific angular orientations that match the recesses, creating a balanced connection that eliminates imbalance during rotational operation while maintaining rapid engagement capability.
3Strength
If conventional tool attachment methods are used, then secure torque transmission is achieved, but device complexity and number of components increase
Solution Approach 1:
The invention merges multiple functions into a single integrated connection mechanism. The protrusions and recesses simultaneously provide connection security, torque transmission, and positioning alignment without requiring separate components for each function. This eliminates the need for additional adapters, locking mechanisms, or adjustment components, thereby reducing device complexity while maintaining strength.
Data Source
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AI summary
The invention relates to a connecting device comprising a positive connecting element and a negative connecting element, wherein the positive connecting element has a protrusion arranged on a base surface and the negative connecting element has a recess provided in a contact surface into which the protrusion of the positive connecting element can be inserted, wherein the positive and the negative connecting element can be connected to each other by rotation.