Height Adjustable Swivel Drill Block for Perpendicular Hole Alignment
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Solution Overview
Problem
Drilling perpendicular holes through substrates with varying surface shapes and topographies is challenging due to the difficulty in maintaining the drill bit's perpendicularity, as existing methods rely on manual alignment and customized jigs that are not practical for diverse configurations.
Innovation Solution
A drill block with adjustable mounting, swivel, and height variability legs, along with drill bushings, allows for precise positioning and alignment of the drill bit, enabling reliable drilling of vertical holes across different surface topographies without the need for customized alignment jigs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual alignment methods are used to position the drill bit, then the device complexity is reduced, but the manufacturing precision deteriorates due to difficulty in maintaining perpendicularity
Solution Approach 1:
The alignment device is divided into separate adjustable legs (first leg, second leg, third leg) that can be independently positioned. Each leg can be adjusted to contact the workpiece surface at different locations, allowing the drill bit to maintain perpendicularity without requiring a complex pre-configured alignment jig.
Solution Approach 2:
The alignment device incorporates adjustable and reconfigurable legs that can be dynamically repositioned for different drilling locations and surface configurations. The legs can be extended, retracted, and angled to adapt to varying workpiece topographies, maintaining precision without requiring customized jigs for each scenario.
2Manufacturing precision
If customized alignment jigs are used for each surface configuration, then the manufacturing precision is improved, but the device complexity and versatility worsen due to need for multiple specialized tools
Solution Approach 1:
The alignment device is designed as a universal tool that can be used across multiple workpiece configurations and drilling locations. The adjustable legs can be positioned to accommodate different surface shapes and topographies, eliminating the need for multiple customized jigs while maintaining hole location accuracy through the reference holes in the workpiece.
3Device complexity
If handheld drill blocks are used for drilling, then the device complexity is reduced, but the manufacturing precision deteriorates due to difficulty in manual alignment and drill pitch/yaw
Solution Approach 1:
The alignment device serves as an intermediary between the drill bit and the workpiece surface. It uses the existing reference holes in the workpiece as mediation points to establish precise alignment, preventing drill pitch and yaw while keeping the drilling device itself relatively simple in design.
Data Source
AI summary
A drill block and a method for drilling a hole through a workpiece using the drill block. The drill block may include a mounting leg for mounting the drill block, a drilling support leg having a round hole therethrough operable to receive a drill bit during a drilling operation, and a height variability leg interposed between the mounting leg and the drilling support leg, wherein the height variability leg is adjustable to select a vertical height of the drilling support leg relative to the mounting leg.