Magnetic Biasing for Robotic Carriage Positioning
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Solution Overview
Problem
Traditional storage library robotic mechanisms require complex and costly designs to maintain accurate and stable positioning for pick and place operations, which can be prone to failure and wear, and are often difficult to service without specialized training.
Innovation Solution
The implementation of magnetic biasing for a robotic mechanism carriage allows it to move freely along linear guides with low tolerance engagement during travel and securely lock into a high tolerance engagement when stationary, using alignment features and magnetic biasers to achieve precise positioning without the need for complex drive mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex drive mechanisms are used to maintain accurate positioning, then positioning precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical drive mechanisms with a magnetic field-based positioning system. Magnets embedded in the carriage interact with magnetic sensors on the linear guide to provide passive magnetic biasing, eliminating the need for complex mechanical positioning components while achieving accurate and repeatable positioning.
Solution Approach 2:
The magnetic biasing system provides self-aligning and self-positioning capabilities. The magnetic field automatically guides the carriage to the correct position on the linear guide without requiring external control mechanisms, allowing the system to self-correct positioning errors and maintain accuracy.
2Stability of the object's composition
If complex drive mechanisms are used to ensure stable positioning, then positioning stability is improved, but reliability decreases due to wear and failure
Solution Approach 1:
The patent eliminates mechanical contact and wear by using magnetic fields for positioning. The magnetic biasing system has no moving parts that can wear or fail, replacing mechanical drive mechanisms with a contactless magnetic field interaction that provides stable positioning without reliability degradation.
Solution Approach 2:
The magnetic biasing provides a cushioning effect that absorbs positioning errors and disturbances before they can cause instability. The magnetic field creates a soft constraint that gently guides the carriage to the correct position, preventing hard impacts and reducing mechanical stress.
3Manufacturing precision
If complex drive mechanisms are used to achieve accurate positioning, then positioning accuracy is improved, but ease of repair deteriorates
Solution Approach 1:
The magnetic biasing system replaces complex mechanical positioning components with simple magnets and magnetic sensors that are easier to service. The magnets can be easily replaced or repositioned, and the magnetic field effects can be adjusted without disassembling complex mechanical assemblies.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables the robotic mechanism to efficiently and accurately perform pick and place operations while reducing the complexity and cost of the drive mechanisms, allowing for easier maintenance and service by end-users without specialized training.
Implementation Method 1
a biaser configured to magnetically couple the carriage with the linear guide
Data Source
AI summary
Systems and methods are described for providing magnetic biasing of a carriage in context of linear guides. In one embodiment, a robotic mechanism is configured to travel on a platform assembly within a structural context. The platform assembly transports a carriage in a Z direction, and the carriage transports the robotic mechanism in an X direction. The carriage moves in the X direction along rails (e.g., and/or other types of linear guides) in a substantially floating or unbiased manner. For example, one or more alignment features on the carriage are in communication with the rails to allow the carriage to move relatively freely within an alignment region defined by the alignment features. When the carriage reaches its desired X location, magnetic features bias the carriage into a substantially accurate, secure, and repeatable position.