Resin Butt Joint Fastening for Short Welding Rings
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Solution Overview
Problem
Existing welding methods for thermoplastic resin joints, particularly those with short tubular welding ring parts, face challenges in ensuring sufficient clamping margin and precise center alignment, leading to cumbersome operations and potential position aberrations.
Innovation Solution
A resin end-face butt joint design featuring a joint base with a flow path, multiple welding ring parts, and fastening parts at the outer end for coaxial clamping with a welding machine, allowing for precise alignment and secure fixation without the need for special jigs, even with short tubular welding ring parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If welding ring parts have a short tubular shape, then the piping system becomes more compact, but it becomes impossible to ensure sufficient clamping margin for tightening and fixing with clamps
Solution Approach 1:
The joint is divided into two functional parts: the welding ring part (for welding) and the fastening part (for clamping). This segmentation allows the welding ring to be short for compactness while the fastening part provides sufficient clamping margin, resolving the contradiction between compact size and ease of operation.
Solution Approach 2:
The fastening part acts as an intermediary element that enables clamping operations without requiring the welding ring itself to provide clamping margin. This intermediary structure allows the welding ring to maintain its short tubular shape while still enabling secure fixation through the fastening part.
2Volume of moving object
If welding ring parts have a short tubular shape, then the piping system becomes more compact, but it becomes necessary to use special jigs for fixing which makes operations cumbersome
Solution Approach 1:
By separating the welding ring part from the fastening part, the invention eliminates the need for special fixing jigs. The fastening part is designed to be directly compatible with ordinary welding machine clamps, simplifying the overall device complexity while maintaining compact piping system size.
Solution Approach 2:
The fastening part is designed with universal compatibility with ordinary welding machine clamps, allowing the same clamping mechanism to be used for both long and short welding ring parts. This universality eliminates the need for special jigs and reduces device complexity.
3Volume of moving object
If welding ring parts have a short tubular shape, then the piping system becomes more compact, but center alignment becomes difficult leading to position aberration
Solution Approach 1:
The separation of welding ring part and fastening part allows the fastening part to serve as a reliable alignment reference. The fastening part's larger diameter and standardized geometry provide precise center alignment, while the welding ring part maintains its compact short tubular shape.
Solution Approach 2:
The fastening part acts as an intermediary alignment reference that ensures precise center alignment between workpieces. This intermediary structure provides a stable geometric reference for positioning, eliminating position aberration even when the welding ring part is short.
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
Enables efficient and precise welding of thermoplastic resin joints with short tubular welding ring parts, reducing the size of piping systems, improving workability, and ensuring accurate core alignment, thus contributing to compactness and stability in piping configurations.
Implementation Method 1
heating the pipe end faces by heat of the heater to be in an appropriate molten state
Implementation Method 2
A pair of clamps 5, 5 are disposed on the opposite sides of the heater 2 for grasping and tightly holding the workpieces 3, 3
Implementation Method 3
the pipe end faces 4, 4 of the workpieces 3, 3 are thrust against each other to be welded
Data Source
AI summary
A resin end-face butt joint, a method for welding the joints, and a piping member ensure a sufficient clamping margin with the clamp of an ordinary welding machine, and ensure an appropriate distance between the centers even when joints having short tubular welding ring parts are welded. It is also possible to align the centers by positioning the centers along the same axis. The resin end-face butt joint includes multiple welding ring parts which communicate with a flow path within a joint base part and which are provided on the joint base part. Fastening parts are coaxial with at least one of these welding ring parts at the outer end of the joint for the purpose of clamping a welding machine.