Magnetic Flange Alignment Pins for 3D Pipe Leveling
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Solution Overview
Problem
Conventional two-dimensional tools for pipe fitting are inadequate for achieving accurate three-dimensional alignments, leading to potential inaccuracies in pipe welding, particularly with flange alignment, as they lack the precision and security needed for straight, square, and angular specifications.
Innovation Solution
The use of pipe flange alignment leveling pins featuring cylindrical magnets with complementary chamfered pins and a non-magnetic alignment rod, which provide a bow-tie configuration for aligning flanges, utilizing magnetic attraction and repulsion to ensure accurate and secure positioning for welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional two-dimensional tools are used for pipe fitting, then the tools are simple and easy to use, but the alignment precision and accuracy in three-dimensional space deteriorate
Solution Approach 1:
The patent transitions from two-dimensional square tools to three-dimensional alignment pins with cylindrical magnets. The pins extend through the pipe wall in the third dimension (radially), providing alignment control in multiple spatial dimensions simultaneously. This dimensional expansion allows the tool to maintain simplicity while achieving precise three-dimensional alignment of flanges.
2Adaptability or versatility
If conventional squares are used during squaring operations, then the tools are readily available, but the squares may slide off the pipe crest rendering the fitting inaccurate
Solution Approach 1:
The alignment pins are pre-installed in the pipe before the flange fitting operation. This preliminary action establishes fixed reference points that prevent sliding during the squaring operation. The pins protrude through the pipe wall to provide stable contact surfaces for the square tool, eliminating the risk of the tool sliding off the pipe crest.
Solution Approach 2:
The cylindrical magnets on the alignment pins act as intermediaries between the square tool and the pipe. The magnetic attraction provides a secure bonding interface that prevents sliding while allowing the square tool to remain in contact with the pipe for accurate alignment. This intermediary magnetic force ensures reliability without requiring the tool to be permanently attached.
3Manufacturing precision
If flange alignment devices are used to secure flanges orthogonal to pipes, then alignment capability is improved, but the devices are not quick or secure enough for tack welds
Solution Approach 1:
The cylindrical magnets on the alignment pins provide self-aligning and self-holding functionality. When the flange is positioned over the pins, the magnets automatically attract to the ferromagnetic material in the flange, securing it in the correct orthogonal position without requiring additional clamps or support devices. This self-service mechanism enables both precise alignment and secure holding for tack welding.
Solution Approach 2:
The magnetic force parameter provides sufficient holding strength for tack welding operations. By utilizing magnetic attraction rather than mechanical friction or gravity-dependent support, the system achieves secure holding that is independent of orientation and sufficient to maintain alignment during the welding process, thereby improving productivity.
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
The solution enables precise alignment and leveling of flanges, ensuring accurate and secure tack welds, thereby improving the quality of pipe fittings by maintaining alignment and preventing offset issues during welding.
Implementation Method 1
The pins include a first and a second cylindrical magnet each configured to have a hollow axis and a positive radial pole and a negative radial pole
Implementation Method 2
A magnet is inserted into each hollow pin... utilizing magnetic attraction and repulsion to ensure accurate and secure positioning for welding
Data Source
AI summary
Pipe flange alignment leveling pins are disclosed to square a flange. The pins include a first and a second cylindrical magnet each configured to have a hollow axis and a positive radial pole and a negative radial pole. A first and a second chamfered hollow pin are engineered to axially receive a respective cylindrical magnet, the chamfer of each pin on an end configured complementary to a flange hole chamfer. A non-magnetic core is engineered to axially slide in and out of the hollow axis of the magnets received into respective pins wherein each of a pair of apparatus resemble a bow tie in cross section configured to align a pair of flanges in two places for a level operation. A level is set across a first and a second assembly of chamfered pins to determine a level flange ready for welding.