Spoon Percussion Instrument Spot Welding Alignment Fixture
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Solution Overview
Problem
Current spoon percussion instruments are not durable due to flimsy materials and inadequate joining methods like MIG welding, TIG welding, or soldering, which lead to short lifespan, distorted sound quality, and aesthetic issues.
Innovation Solution
The use of an alignment fixture for precise spot welding of metal spoons without additional materials, ensuring a strong and aesthetically pleasing joint that maintains sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If MIG welding, TIG welding, or soldering is used to join spoons, then the spoons can be connected, but the joining methods add cost, require additional cleaning and polishing, and are not strong or durable enough
Solution Approach 1:
The patent removes consumable materials and filler weld materials from the welding process, using only the base metal itself for joining. This extraction of unnecessary materials simplifies the manufacturing process while maintaining joint strength through precise alignment and resistance spot welding of the spoon handles themselves.
Solution Approach 2:
The patent replaces complex welding systems (MIG, TIG, soldering) with a simpler resistance spot welding process. This substitution eliminates the need for additional materials, cleaning, and polishing steps while producing stronger, more durable joints through direct metal-to-metal contact and controlled electrical resistance heating.
2Reliability
If flimsy metal is used to enable welding, then the spoons can be joined, but the appearance deteriorates and sound quality is distorted
Solution Approach 1:
The patent employs an alignment fixture that pre-positions the spoon handles in the correct orientation before welding occurs. This preliminary alignment ensures that the welding electrodes contact the metal surfaces at the optimal locations, producing strong, durable joints without requiring flimsy metal or additional filler materials that would compromise appearance or sound quality.
Solution Approach 2:
The resistance spot welding process uses the spoon handles themselves as both the workpiece and the welding material, eliminating the need for separate filler weld materials. The metal surfaces of the handles directly form the joint, ensuring aesthetic appearance is maintained while achieving reliable, durable connections that do not distort sound quality.
3Duration of action of stationary object
If conventional welding methods are used, then spoons can be joined, but the instrument has a very short life span of satisfactory sound quality
Solution Approach 1:
The alignment fixture serves as an intermediary device that ensures precise positioning of the spoon handles relative to each other and to the welding electrodes. This intermediary tool maintains consistent, accurate alignment throughout the welding process, producing joints with high precision that contribute to the extended lifespan and sustained sound quality of the finished instrument.
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 method results in a more durable and cost-effective spoon percussion instrument with improved longevity and visual appeal, maintaining sound quality and ease of playability.
Implementation Method 1
an alignment fixture dimensioned and adapted to hold the pair of spoons in a perfect fit so that the spot weld is ideally located
Implementation Method 2
The method of manufacture includes metal spoons that are alignment-fixtured and then resistance spot welded together with no additional material
Data Source
AI summary
A spoon instrument and a method of manufacturing the same is provided. Two spoons are joined together near their handle's distal end by temporarily aligning and fixing this aligned arrangement by way of an alignment fixture. The alignment fixture provides spaced apart, parallelly arranged plates that define an ideal joint location between the two spoons formed by spot welding, as opposed to welding using consumable or filler material.