Rotatable Welding Jig Assembly for Pipe Elbow Circumference Access
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Solution Overview
Problem
Welding pipe elbows to straight pipes is challenging due to the angular orientation of the pipe portions, making it difficult to access the entire circumferential surface for proper welding, especially in field applications where traditional workbenches do not provide optimal access.
Innovation Solution
A welding jig assembly with a modified triangular body member and angular arm members, featuring arcuate pipe elbow support members and chuck engagement rods, allows for the secure positioning and rotation of pipe elbows, eliminating the need for underhand welding by facilitating access to the entire circumference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional workbench is used for welding pipe elbows to straight pipes, then the welding process can be performed, but the angular orientation of the pipe portions makes it difficult to access the entire circumferential surface for proper welding
Solution Approach 1:
The welding jig incorporates a rotatable assembly that allows the pipe elbow and straight pipe portion to be rotated to various angular positions. This dynamic capability enables the welder to access the entire circumferential surface of the joint by rotating the pipes into optimal welding positions, directly resolving the access limitation of traditional static workbenches.
Solution Approach 2:
The welding jig serves as an intermediary device between the pipe components and the welding process. It provides specialized fixtures, clamps, and positioning mechanisms that hold the pipe elbow and straight pipe portion in precise angular relationships, making the complex positioning task manageable and enabling proper welding access.
2Productivity
If pipe portions are manually positioned for welding, then the welding can be performed, but it is cumbersome to manage the positioning due to the angular orientation of the pipe portions
Solution Approach 1:
The welding jig pre-positions the pipe elbow and straight pipe portion in the correct angular relationship before welding begins. The jig's fixtures and clamps are designed to automatically establish the proper joint geometry when the pipes are loaded, eliminating the need for manual trial-and-error positioning and significantly improving both ease of operation and welding efficiency.
Solution Approach 2:
The welding jig incorporates self-aligning features and self-adjusting mechanisms that automatically position the pipe components correctly. The rotatable assembly and positioning fixtures work together to maintain proper angular orientation throughout the welding process, reducing the need for continuous manual intervention and adjustment.
Data Source
AI summary
A welding jig assembly operable to assist a welder in welding pipe elbows of varying diameters to an adjacent portion of pipe. The welding jig assembly includes a body member that is planar in manner having a first end and a second end. The body member further includes a first arm member and a second arm member that are integrally formed therewith and have a void therebetween. The first arm member and the second arm member have chuck engagement rods extending outward therefrom. The welding jig assembly includes a first set of pipe elbow support members and a second set of pipe elbow support members located on opposing lateral edges of the body member. The sets of pipe elbow support members are arcuate in form and have portions extending outward from opposing sides of the body member. An aperture is formed in the body member to receive a securing chain.