Faucet Valve Seat Chamfering for Burr-Free Rotation
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Solution Overview
Problem
Existing methods for deburring and chamfering faucet bodies often result in incomplete removal of burrs or sharp corners, leading to potential scratching of the water stop rubber, and require custom-made tools, increasing costs and processing time.
Innovation Solution
A method using a punching machine with a processing punch featuring a forming end to remove burrs and sharp corners by squeezing the periphery of the holes, ensuring a smooth surface for the water control valve installation, thereby preventing scratching and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a CNC tool machine with hole lining tool or forming tool is used to remove burrs and sharp corners, then the burrs and sharp corners can be removed, but the processing is incomplete due to eccentricity and requires custom-made tools, increasing cost and time
Solution Approach 1:
The patent applies universality by using a standard punching machine (existing equipment) to perform multiple functions: it not only punches holes but also removes burrs and sharp corners through the specially designed processing punch. This eliminates the need for custom-made forming tools while achieving complete burr removal, resolving the contradiction between manufacturing precision and device complexity
Solution Approach 2:
The processing punch is segmented into distinct functional parts: a connecting end for machine attachment and a forming end with an annular forming portion for burr removal. This segmentation allows the single tool to effectively perform both punching and deburring operations, achieving complete burr removal without requiring multiple specialized tools
2Object-affected harmful factors
If a CNC tool machine is used to process burrs and sharp corners, then some burrs can be removed, but eccentricity causes incomplete removal on one side, leading to water stop rubber scratching
Solution Approach 1:
The processing punch features a localized annular forming portion at its forming end that concentrates the burr-removal action specifically at the hole periphery where burrs and sharp corners exist. This localized quality ensures complete burr removal at the critical installation position without being affected by overall punch eccentricity, preventing water stop rubber scratching
Solution Approach 2:
The patent converts the potential harm of punch eccentricity into a benefit by designing the forming portion to squeeze and remove burrs through the punching action itself. The eccentricity that would normally cause incomplete removal is transformed into an effective squeezing action that ensures complete burr removal at the hole periphery, eliminating the harmful effect
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 method effectively removes burrs and sharp corners, ensuring smooth operation of the water control valve and reducing manufacturing costs by using a standard punching machine, maintaining consistent smoothness and preventing damage to the water stop rubber.
Implementation Method 1
the forming portion of the forming end squeezing a periphery of the hole of the first end or second end to remove burrs or sharp corners on the hole
Data Source
AI summary
A method for chamfering the installation position of a water control valve of a faucet body, mainly using a punching machine to drive a processing punch to punch a first end or second end, where the processing punch is provided with a fillet corresponding to the hole of the first end or second end, which squeezes the burrs through the driving of the punching machine, allowing the surface of installation position of the water control valve to be even and smooth, achieving smooth rotation of the water control valve, and preventing the water stop rubber to be scratched by the burrs or sharp corners.