Universal Vector Bushing for Wide-Angle Workpiece Alignment
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Solution Overview
Problem
Existing methods in the aerospace industry for working with existing holes, such as drilling or reaming, are limited by the size and versatility of drill bars and balls with screw clamps, which restrict the range of movement and securement of workpieces.
Innovation Solution
A universal vector bushing system comprising a base plate, vertical plates, and universal vector bushing apparatuses, which allow for free-range articulation and securement of workpieces through a series of radii and counter radii, enabling over 120 degrees of movement and secure locking via a threaded shaft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If drill bars and balls with screw clamps are used, then workpiece securing is achieved, but the range of movement and versatility are restricted
Solution Approach 1:
The bushing apparatus is designed with a universal interface that can accommodate multiple types of workpieces and tools through a single standardized mounting mechanism. The spherical interface with adjustable clamping allows the same apparatus to secure different workpiece geometries without requiring multiple specialized fixtures, thereby achieving versatility while maintaining relatively simple device structure.
Solution Approach 2:
The bushing apparatus incorporates a dynamic clamping mechanism with spherical interfaces and adjustable clamps that can adapt to different workpiece positions and orientations. This dynamic adjustment capability allows the apparatus to maintain secure holding while accommodating a wide range of movements and angles, resolving the contradiction between securement and range of movement.
2Adaptability or versatility
If drill bars and balls with screw clamps are used, then workpiece securing is achieved, but the range of movement is restricted
Solution Approach 1:
The bushing apparatus utilizes spherical interfaces at the mounting points, allowing rotational movement in multiple directions while maintaining a secure connection. The spherical geometry enables over 120 degrees of free movement as stated in the patent, while the clamping mechanism ensures reliable securement throughout the range of motion, effectively resolving the contradiction between range of movement and securement reliability.
3Manufacturing precision
If existing clamping methods are used, then workpiece holding is achieved, but smooth finish without raised material cannot be obtained
Solution Approach 1:
The bushing apparatus serves as an intermediary between the workpiece and the deburring tool, providing a precise positioning interface that ensures the tool engages the workpiece at the correct angle and position. This intermediary mechanism allows for secure holding while enabling smooth deburring operations that produce a finish without raised material, while the apparatus remains easy to operate through its simple clamping design.
Data Source
AI summary
Embodiments provide a universal bushing system that includes a base plate, vertical plates, and universal vector bushing apparatuses. The vertical plates are mounted to base plate and are separated by predetermined distance on base plate to position a workpiece. The bushing apparatuses are coupled to vertical plates. Each apparatus includes first knob, second knob, bushing element, and pivoting portion. The first knob includes threaded structures. The second knob is coupled to first knob via the threaded structures. The bushing element includes a recess with threaded tracks to allow the second knob to be placed. The pivoting portion includes a first end coupled to bushing element and a second end to pivotally connect to a vertical plate. Each of the first knob, the second knob, the bushing element, and the pivoting portion forms a hollow portion concentric at longitudinal axis that forms a slotted path to receive a threaded shaft.