Multi-Axis Clamping Device With Indentation Locking
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Solution Overview
Problem
Current clamping devices lack flexibility and reproducibility in positioning workpieces in three-dimensional space, allowing only adjustment along one axis and no rotation, which limits their use in complex assembly processes.
Innovation Solution
A clamping device featuring a column member with adjustable collars and arms, equipped with indentations and fastening elements that allow for free positioning and locking in multiple degrees of freedom, including rotation, using a combination of sliding and rotational movements and form-fitting engagement of fasteners in recesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If common clamping devices with jaw-like clamping jaws are used, then the structure is simple, but the flexibility in positioning workpieces in space is limited
Solution Approach 1:
The clamping device is divided into multiple independent adjustable components: a column member with multiple indentations, a collar with fastening elements that can be positioned at different indentations, and an arm that can rotate and displace relative to the collar. This segmentation allows each component to be adjusted independently, providing flexible positioning in multiple degrees of freedom while keeping individual components relatively simple.
Solution Approach 2:
The device incorporates dynamic adjustability through the collar that can be positioned at different longitudinal positions on the column member, and the arm that can rotate and displace. The fastening elements allow the structure to transition between fixed and movable states, enabling dynamic repositioning of the workpiece during assembly processes.
2Manufacturing precision
If supports with column-like telescopic assembly aids are used, then adjustment along one axis is enabled, but rotation and reliable reproducible positioning are not possible
Solution Approach 1:
The invention adds rotational degrees of freedom by allowing the arm to rotate relative to the collar about an axis perpendicular to the column member's longitudinal axis. This transforms the single-axis adjustment capability into multi-axis positioning capability, enabling both translational and rotational positioning of the workpiece with reproducible precision through the fastening elements engaging with indentations.
3Adaptability or versatility
If the collar is made adjustable and rotatable relative to the column member, then positioning freedom in multiple directions is achieved, but the locking mechanism must be reliable under static loads
Solution Approach 1:
The fastening elements are designed to automatically engage with the indentations on the column member when the collar is positioned, providing self-locking capability. The geometric interference between the fastening elements and indentations creates a mechanical lock that maintains the positioned state under static loads without requiring additional active locking mechanisms.
Data Source
Figure 1
AI summary
A clamping device for clamping a workpiece comprises at least one column element, at least one sleeve that surrounds the column element, is adjustable relative to it, and has at least one projection, and at least one arm that is held at the projection and is adjustable relative to it. The workpiece can be detachably attached to the arm. The column element is provided with recesses, and the sleeve has at least one fastening element that can optionally be positively engaged with one of the recesses. Additionally or alternatively, the arm is provided with recesses, and the projection has at least one fastening element that can optionally be positively engaged with one of the recesses.