System and method for dispensing a minimum quantity of cutting fluid

Patent metadata

Field	Value
Publication number	US-9931724-B2
Application number	US-201715461049-A
Country	US
Kind code	B2
Filing date	Mar 16, 2017
Priority date	Feb 8, 2011
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

Devices, systems, and methods are provided for controlling a quantity of cutting fluid dispensed for a cutting tool within a CNC or other machining system. The devices, systems, and methods may include controlling multiple fluids such that coolant, lubricant, or other fluids can be delivered at different locations, at different flow rates, have their flow rates changed independently, and/or have their flow rates changed dynamically during a machining operation. In some embodiments, a feedback loop or input may be provided to obtain and/or provide information regarding the machining operation—such as cutting force, cutting temperature, cutting friction, machining operation, tool in use, work piece geometry, and/or material—and automatically and/or independently modify the fluid flow rates. The fluid may be atomized with air or other gases to minimize the quantities of fluid used. Components in the system may be modular to allow the system to be used with existing and new machining technologies.

First claim

What is claimed is:

1. A cutting fluid dispensing system, comprising:
a plurality of fluid reservoirs containing a plurality of fluids;
a plurality of fluid transport control systems hydraulically linked to said plurality of fluid reservoirs, said plurality of fluid transport control systems being configured to retrieve fluids from said fluid reservoirs;
a processing component communicatively linked to said plurality of fluid transport control systems, wherein said processing component is configured to, in response to a detected a change in a machining parameter, without user intervention, and in real time, modify:
delivery of the plurality of fluids from the plurality of fluid reservoirs to a plurality of locations on a cutting machine; and
a flow rate of one or more of the plurality of fluids.

2. The system of claim 1 , wherein delivery of each fluid of the plurality of fluids from the plurality of fluid reservoirs to the plurality of locations on a cutting machine is independently controllable by said processing component.

3. The system of claim 1 , wherein the flow rates of each of the plurality of fluids is independently controllable by said processing component.

4. The system of claim 1 , wherein the plurality of fluids includes liquids and gaseous fluids.

5. A method for machining a work piece, the method comprising:
beginning a machining operation within a CNC machining system;
initiating a flow of a plurality of fluids through a transport control system directed at a cutting tool of said CNC machining system;
evaluating a machining parameter of said machining operation;
in response to the evaluation of the machining parameters, without user intervention, and in real time, changing:
a delivery location on said CNC machining system of one or more fluids of the plurality of fluids; and
a fluid flow rate of one or more of the plurality of fluids.

Assignees

• The Univ Of Utah Research Foundation
• Univ Utah Res Found

Inventors

• Balaji Alagar Krishnan
• Ghatikar Venugopal Raghavendra

Classifications

• G05D7/0629

  characterised by the type of regulator means · CPC title

• B23Q17/0952

  during machining · CPC title

• B23Q11/1046 Primary

  using a minimal quantity of lubricant (spraying apparatus using a carrying fluid B05B7/00) · CPC title

• G05D7/0682

  using a plurality of flow sources · CPC title

• B23Q17/00

  Arrangements for {observing,} indicating or measuring on machine tools (for automatic control or regulation of feed movement, cutting velocity or position of tool or work B23Q15/00) · CPC title