Drill Bit Jig for Precision Door Hole Alignment
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Solution Overview
Problem
Technicians face challenges in accurately drilling elongate holes in metal work pieces, such as security doors, without damaging the surface, as current methods rely on visual alignment and often result in errors that lead to drilling through the front or rear surfaces.
Innovation Solution
A drill bit jig system comprising an elongate member, adjustable jig securing elements, and a rotatable drill bit guide that aligns the drill bit with the desired drilling direction, preventing surface damage by guiding the bit through a predetermined line and accommodating various bit sizes and work piece thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If technicians use line of sight to align the drill bit during hand drilling, then the drilling operation can be performed without specialized equipment, but the drilling accuracy deteriorates and the front or rear surfaces of the door are damaged
Solution Approach 1:
The patent introduces a jig as an intermediary device between the technician and the drilling operation. The jig includes a guide member with a longitudinal axis that defines a predetermined drilling path, and a drill bit securing mechanism that holds the drill bit. This intermediary tool eliminates the need for technicians to rely on visual alignment while preventing surface damage by constraining the drill bit to the predetermined path.
Solution Approach 2:
The jig performs preliminary alignment and positioning actions before drilling begins. The guide member is positioned against the door surface to establish the correct drilling trajectory in advance, and the drill bit is secured in the predetermined orientation before the drilling operation starts. This preliminary setup ensures accurate drilling without requiring specialized technician skills.
2Manufacturing precision
If a fixed drill bit guide is used to prevent surface damage, then drilling accuracy improves, but the adaptability to different door dimensions and bit sizes deteriorates
Solution Approach 1:
The patent makes the jig dynamic and adjustable rather than fixed. The guide member can be repositioned along its length to accommodate different door dimensions and drilling locations. The drill bit securing mechanism allows for different bit sizes and orientations. This dynamic design maintains drilling accuracy while providing versatility for various applications.
Solution Approach 2:
The jig is designed as a universal tool that can perform multiple drilling functions. The guide member can be positioned at different locations and orientations to accommodate various door dimensions and drilling requirements. The drill bit securing mechanism accepts different bit sizes, making the single jig applicable to diverse drilling tasks across different door types and configurations.
Data Source
AI summary
A drill bit jig includes an elongate member, two jig securing elements and a drill bit guide. The drill bit guide includes a plurality of through holes where the axes of the through holes are parallel to the axis of the elongate member. Each of the plurality of through holes in the drill bit guide has a different diameter for accommodating drill bits of different thicknesses. The jig securing elements each include an L-shaped bolt and a door protecting material encasing one of the straight sections of the bolt. The drill bit jig also includes a core check to determine if a hole being drilled along the width of the door is straight.