Anchor Bolt Hole Punching With Controlled Drill Tilt
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating anchor bolt insertion holes with a wider bottom diameter than the entrance are inconsistent due to arbitrary angle tilting during perforation, leading to varying hole sizes and angles regardless of operator skill.
Innovation Solution
The apparatus includes a hammer drill with a drill bit and an adapter that allows the drill bit to move in a vertical and inclined direction within a predetermined range, utilizing a two-stage cylindrical body and springs to maintain consistent hole dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a worker tilts the hammer drill at an arbitrary angle during perforation, then the anchor bolt insertion hole can be created manually, but the angle and size of the hole vary for each worker, reducing manufacturing precision
Solution Approach 1:
The adapter incorporates an elastic support unit that allows dynamic adjustment of the drill bit angle during operation. The support unit enables the drill bit to tilt within a predetermined range while maintaining consistent hole dimensions through controlled elastic deformation, resolving the contradiction between operational flexibility and manufacturing precision.
Solution Approach 2:
The patent changes the physical state of the support structure from rigid to elastic, allowing the drill bit angle to vary within controlled parameters. The elastic support unit permits angular deviation within a predetermined range while ensuring the hole dimensions remain consistent, thus maintaining precision despite operational flexibility.
2Ease of operation
If an adapter with elastic support unit is used to allow drill bit movement, then operational flexibility is improved, but the device complexity increases
Solution Approach 1:
The adapter is divided into distinct functional segments: a body portion, an elastic support unit, and a drill bit mounting portion. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining operational flexibility and reducing complexity through modular functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables precise punching of anchor bolt insertion holes with a consistently wider bottom diameter than the entrance, regardless of operator skill, by controlling the drill bit's movement and using springs to adjust the movement range.
Implementation Method 1
a spring is disposed on the drill bit to elastically support the inclined driving portion
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
The present invention relates to an apparatus for punching an anchor bolt insertion hole, wherein the apparatus enables punching work for forming the anchor bolt insertion hole, of which the bottom side is wider than an inlet, on a panel surface for constructing a concrete structure to be performed regardless of the skill of a worker. The apparatus for punching an anchor bolt insertion hole of the present invention separates, during operation, the movement direction of a hammer drill into the vertical direction and the inclination direction so as to enable precise punching work, and doubly arranges springs, which are elastic devices for adjusting the movement range of the hammer drill, so as to uniformly maintain the angle and size for cutting a wall such that a cross-sectional diameter is large at a portion adjacent to the bottom of the anchor bolt insertion hole.