Automatic Hydro-Mechanical Nozzle Assembly for Machining

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Solution Overview

Problem

Existing fluid nozzle systems in machining operations require manual repositioning, leading to inefficiencies and downtime due to the need for precise targeting of fluid application on tools and workpieces, which affects surface quality and throughput.

Innovation Solution

An apparatus with a nozzle assembly that automatically adjusts its position using a combination of spring force and hydrodynamic force to maintain alignment with a target zone on the tool or workpiece, which varies over time due to wear or other processing factors, ensuring continuous and efficient fluid application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual adjustment of nozzle position is used, then device complexity is reduced, but productivity decreases due to machine downtime required for repositioning

Engineering Contradiction:
ImprovethroughputVSAvoidnozzle adjustment mechanism
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The nozzle assembly automatically adjusts its own position through the interaction of spring force and hydrodynamic force from the fluid flow, eliminating the need for manual intervention and machine downtime for repositioning

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical adjustment with a self-regulating system combining spring mechanical force and fluid hydrodynamic force to automatically position the nozzle assembly relative to the target zone

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If fixed nozzle position is used, then device complexity is minimized, but manufacturing precision deteriorates as tool wear changes target zone location

Engineering Contradiction:
Improvepart surface qualityVSAvoidautomatic adjustment mechanism
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The nozzle assembly transitions from a fixed position to a dynamic position that automatically adapts to changing target zone locations caused by tool wear, maintaining optimal fluid application throughout the tool's service life

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The hydrodynamic force from the fluid flow provides continuous feedback about the relative position between the nozzle assembly and target zone, enabling automatic adjustment to maintain optimal targeting despite tool wear

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If manual repositioning is implemented, then adaptability to target zone variations is improved, but loss of time increases due to required machine downtime

Engineering Contradiction:
Improvenozzle repositioning capabilityVSAvoidmachine downtime
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The automatic adjustment mechanism allows the nozzle assembly to continuously maintain optimal positioning relative to the target zone throughout operation, eliminating interruptions and maintaining continuous productive action

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system performs its own repositioning automatically through the spring-hydrodynamic force interaction, eliminating the need for external manual intervention and associated downtime

Inventive Principle:
Principle #25Self-service

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 reduces downtime, improves part surface quality, and increases throughput by maintaining optimal fluid application without manual intervention, even as tools wear, thereby enhancing operational efficiency and reducing costs.

Implementation Method 1

A spring applies a spring force to bias the nozzle assembly toward the target zone. The spring acts to move the nozzle assembly as the location of the target zone varies.

Methodology Applied
Scientific EffectSpring force: Spring

Implementation Method 2

The nozzle assembly is configured to move to a position relative to the target zone by a combination of action of the spring force and of any hydrodynamic force of the fluid when moving through the nozzle assembly.

Methodology Applied
Scientific EffectHydrodynamic force:

Data Source

PatentUS12138739B2Automatic adjusting hydro-mechanical fluid nozzle apparatus
Publication Date: 2024.11.12 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US12138739B2 patent drawing
  • US12138739B2 patent drawing
  • US12138739B2 patent drawing

AI summary

Apparatus are provided for automatic repositioning of fluid nozzles when operating on a workpiece with a tool. The apparatus includes a nozzle assembly configured to convey a fluid to a target zone defined on the workpiece and/or on the tool. The target zone has a location that varies over time. A spring applies a spring force to bias the nozzle assembly toward the target zone, and moves the nozzle assembly as the location of the target zone varies. The nozzle assembly moves to a position relative to the target zone by a combination of action of the spring force and of any hydrodynamic force of the fluid, when moving through the nozzle assembly.