Low-Profile Rectangular Coupling Device for Robotic Manipulators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coupling devices for manipulators, such as robotic devices, are either too bulky to accommodate low-profile pallets or lack the strength to handle heavy weights due to their round designs and complex actuation mechanisms.
Innovation Solution
A coupling device with an elongated, rectangular design featuring a locking mechanism with laterally shiftable locking elements and a central actuating member, which allows for a low-profile configuration capable of handling heavy weights, and includes a one-piece adapter with a T-shaped cross-section and protuberances for enhanced stability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a round housing with radially shiftable spools is used for the quick clamping system, then the clamping mechanism can be actuated effectively, but the height increases significantly exceeding low-profile pallets
Solution Approach 1:
The patent transitions from a radial clamping mechanism (round housing with radially shiftable spools) to an axial clamping mechanism (elongated housing with axially movable locking elements). This dimensional change allows the locking elements to move parallel to the longitudinal axis of the housing rather than radially, significantly reducing the height requirement while maintaining effective clamping capability
Solution Approach 2:
The patent employs an asymmetric elongated housing design with a locking opening that has side widenings, replacing the symmetric round housing. The locking elements have an asymmetric profile with a first flat and a second flat at different positions, allowing them to engage effectively in the asymmetric locking opening while maintaining a compact axial profile
2Reliability
If complex actuation mechanisms with multiple separate actuating members are used for each locking element, then reliable locking can be achieved, but the device complexity increases
Solution Approach 1:
The patent combines multiple separate actuating members into a single integrated actuating member that controls both locking elements. The actuating member features conically tapered side faces that engage with thrusting flats on both locking elements simultaneously, reducing the number of actuating components from two to one while maintaining reliable locking of both elements
Solution Approach 2:
The single actuating member serves multiple functions: it actuates both locking elements, provides self-locking through its conically tapered geometry, and maintains engagement with both locking elements during the actuation process. This multi-functional design reduces complexity while ensuring reliable operation
3Ease of manufacture
If a one-piece adapter with T-shaped cross-section is used, then manufacturing cost decreases and stability increases, but the design becomes more specific
Solution Approach 1:
The patent integrates multiple adapter components into a single one-piece adapter with a T-shaped cross-section. The adapter includes a base and two legs formed as one continuous piece, eliminating the need for separate components and reducing manufacturing complexity and cost while maintaining structural integrity and stability
Data Source
AI summary
The coupling device (1) comprises a clamping fixture (2) fixable to a manipulator and an adapter (40) securely clampable thereto. Both the clamping fixture (2) and the adapter (40) are configured substantially rectangular. The clamping fixture (2) comprises a locking mechanism (5) consisting of two laterally shiftable locking elements (6, 7) and an actuating member (8) disposed inbetween. For fixedly securing the adapter (40) to the clamping fixture (2) the locking elements (6, 7) are urged by means of the actuating member into the side widenings (45, 46) of the locking opening (44). In addition, the clamping fixture (2) is provided with a slotted recess (4) and the adapter (40) with an elongated base (41), the latter being insertable into the slotted recess (4).