US Patent: 4,076,442 - Apparatus for Controlling Coolant Flow in Accordance to External Forces Upon a Cutting Tool


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US Patent: 4,076,442

Apparatus for Controlling Coolant Flow in Accordance to External Forces Upon a Cutting Tool

Patentees:

Joseph Henry Cox, Jr. (exact or similar names) - Cincinnati, Hamilton County, OH

William Andrew Haggerty (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:

408/11, 408/56, 408/59, 408/8

Tool Categories:

metalworking machines : machine tool controls

metalworking machines : metalworking machine mechanisms : coolant apparatus

industrial machines : industrial machine mechanisms : industrial control apparatus : flow controls

Assignees:

Cincinnati Milacron, Inc. - Cincinnati, Hamilton County, OH

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Mar. 07, 1977
Granted:	Feb. 28, 1978

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Cincinnati Milacron, Inc.

Description:

Abstract:

An apparatus in a machine tool controls the flow of coolant in accordance to tool contact with a workpiece. The preferred embodiment measures and stores a torque value exerted upon a spindle motor under no-load conditions and compares this value to an operating torque value upon the same spindle motor. When the tool contacts a workpiece and the operating torque exceeds the stored no-load torque value by a predetermined amount, a solenoid operated valve is opened and coolant is permitted to the area of tool engagement with the workpiece.