Weld Fitting Positioning Scales for Uniform Heat Welding
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Solution Overview
Problem
Conventional weld fittings face challenges in achieving ideal welding with uniform beads due to the proximity of positioning elements, making it difficult to accurately position the fitting main body portion during welding, which affects the degree of welding and workability.
Innovation Solution
The introduction of positioning scales at equal intervals on the outer periphery of the weld fitting, along with marking scales and auxiliary scales, allows for precise alignment and easy recognition, enabling accurate positioning and improved workability by matching these scales with reference marks on the clamp portions, thus facilitating consistent and efficient welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If positioning elements (outer peripheral flange and notched recess) are placed close to the welding portion for easy positioning, then positioning ease is improved, but welding uniformity deteriorates due to changes in welding degree
Solution Approach 1:
The positioning function is segmented from the welding area by placing positioning scales on the outer peripheral portion that is not clamped, separating the positioning reference from the welding zone to prevent interference with welding uniformity
Solution Approach 2:
Positioning scales serve as an intermediary element between the clamp portion and the welding area, providing a reference for positioning without directly interfering with the welding process or requiring proximity to the welding portion
2Manufacturing precision
If positioning elements are placed far from the welding portion to maintain welding uniformity, then welding precision is improved, but positioning ease deteriorates
Solution Approach 1:
The positioning scales act as an intermediary reference system that bridges the gap between the clamp portion and the welding area, enabling easy positioning through visual alignment with reference marks while maintaining sufficient distance from the welding zone to preserve welding uniformity
3Ease of operation
If conventional positioning structures are used, then positioning function is achieved, but workability deteriorates due to difficulty in achieving ideal welding
Solution Approach 1:
The mechanical positioning system is replaced with a visual positioning system using scales and reference marks, eliminating the need for complex mechanical positioning structures and enabling easier alignment and welding operations
Solution Approach 2:
The positioning scales are pre-marked on the fitting main body portion before welding, allowing the operator to perform preliminary alignment by matching scales with reference marks on the clamp portion, ensuring proper positioning before the welding process begins
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 enhances the ease of positioning and accuracy in welding, reducing the occurrence of changes in the welding degree and improving workability by allowing for high-precision alignment and direct welding without the need for intermediate components like resin tubes, thereby minimizing pressure loss and flow disruptions in liquid circulation.
Implementation Method 1
the other end portion of the fitting main body portion and the one end portion of the resin tube inserted into the other end portion of the fitting main body portion are heated by a heater provided in the clamp device that clamps the other end portion of the fitting main body portion
Data Source
AI summary
A heat-weldable weld fitting that has a cylindrical fitting main body portion. The cylindrical fitting main body portion includes an outer periphery including a first end portion, a second end portion, and a middle section between the first end portion and the second end portion, and positioning scales formed at equal intervals in a peripheral direction of the second end portion of the outer periphery of the fitting main body portion. The first end portion being configured to be heated by a heater and is welded to an end portion of another weld fitting. The positioning scales are configured to define an angular portion of the weld fitting relative to the welding apparatus at the time of welding the first end portion to the first end portion of another weld fitting by matching the positioning scale with a reference mark provided on the clamp portion of the welding apparatus.