US2745229A - Liquid cooled grinder wheel - Google Patents

Liquid cooled grinder wheel Download PDF

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Publication number
US2745229A
US2745229A US483697A US48369755A US2745229A US 2745229 A US2745229 A US 2745229A US 483697 A US483697 A US 483697A US 48369755 A US48369755 A US 48369755A US 2745229 A US2745229 A US 2745229A
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US
United States
Prior art keywords
wheel
spindle
liquid cooled
liquid
grinder wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US483697A
Inventor
Samuel G Brady
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEAR GRINDING MACH CO
GEAR GRINDING MACHINE Co
Original Assignee
GEAR GRINDING MACH CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE544092D priority Critical patent/BE544092A/fr
Application filed by GEAR GRINDING MACH CO filed Critical GEAR GRINDING MACH CO
Priority to US483697A priority patent/US2745229A/en
Priority to GB34336/55A priority patent/GB813910A/en
Priority to FR1139200D priority patent/FR1139200A/en
Priority to CH325569D priority patent/CH325569A/en
Application granted granted Critical
Publication of US2745229A publication Critical patent/US2745229A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
    • B23Q1/0027—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
    • B23Q1/0036—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained one of those parts being a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant

Definitions

  • the invention relates to grinder wheels of that type in which a coolant liquid is fed through the pores of the wheel body to the peripheral grinding surface thereof.
  • a coolant liquid such as Water
  • the coolant liquid such as Water
  • the water entering the pores of the structure at such point will be fed outward by centrifugal action which is relied upon to discharge it on the grinding surface.
  • Fig. 1 is an axial cross section through the grinder wheel and its spindle to which my improved means for introducing the coolant Water is attached.
  • Fig. 2 is a cross section on line 2-2, Fig. 1.
  • the grinder wheel A is of a character which, as above stated, is sufliciently porous to receive within its body the coolant liquid.
  • This wheel is mounted upon a spindle B and is secured thereto by clamping plates C and C, a nut D having a threaded engagement with a portion of the spindle, the parts as thus far described being of any T o introduce the coolant liquid into the body of the wheel I form the spindle with a central chamber E therein which is connected by radially extending ports F with a helical groove G in the portion of its outer surface which is engaged by the wheel A.
  • the clamping plates 0 and C' are recessed at C, C to 2,745,229 Patented May 15, 1956 ice therefrom other than through said porous wheel by seal-' ing rings H and H, the former between the chambers and the periphery of the plates and the latter between said plates and the spindle. there is attached by screw threaded engagement therewith a hollow extension member I. This is surrounded by a non-revoluble member I with ball bearings K and K therebetween. of any liquid therebetween.
  • the outer end portion of the member I has a chamber J therein which is in communication with the hollow member I.
  • a conduit M connected to the member I and in communication with the chamber J therein willsupply water or other coolant liquid at any desired pressure to the chamber E.
  • a liquid cooled grinding wheel comprising a grinder body sufficiently porous for passage of liquid therethrough, a hollow rotary spindle on which said'body is mounted having a helical channel in the portion of its surface surroundedby said body with radial ports connecting the space within the spindle and said channel, clamping plates on opposite sides of said body dished to form chambers in communication with said channel, sealing means between said body and plates at the periphery of said chambers and also between said plates and spindle and a connection at the outer end of said spindle for the introduction of cooling liquid under pressure.
  • connection includes a small diameter tubular extension of said rotary spindle, a non-rotating sleeve surrounding said extension connected to the source of fluid under pressure, an antifriction bearing between said extension and sleeve, and sealing means for preventing leakage of fluid through said bearing.

Description

May 15, 1956 s. G. BRADY LIQUID COOLED GRINDER WHEEL Filed Jan. 24, 1955 INVENTOR.
SAMUEL G. BRADY ATTOR NEYS suitable construction.
United States Patent LIQUID COOLED GRINDER WHEEL Samuel G. Brady, Royal Oak, Micl1., assiguor to The Gear Grinding Machine Company, Detroit, Mich., a corporation of Delaware Application January 24, 1955, Serial No. 483,697
2 Claims. (Cl. 51--267) The invention relates to grinder wheels of that type in which a coolant liquid is fed through the pores of the wheel body to the peripheral grinding surface thereof. Heretofore grinder wheels of this character have been made in which the coolant liquid, such as Water, is fed to the wheel radially outward from its attachment to the rotary spindle. The water entering the pores of the structure at such point will be fed outward by centrifugal action which is relied upon to discharge it on the grinding surface. However, there is no force other than capillarity for causing the water to enter into the body and consequently the amount that is fed to the grinding surface may be inadequate to produce suflicient cooling.
It is the object of my invention to obtain a construction in which a greatly increased volume of liquid is introduced into the body of the grinder wheel and under pressure which supplements centrifugal force in feeding it outward to the grinding surface. To this end the invention consists in the construction as hereinafter set forth.
In the accompanying drawings:
Fig. 1 is an axial cross section through the grinder wheel and its spindle to which my improved means for introducing the coolant Water is attached.
Fig. 2 is a cross section on line 2-2, Fig. 1.
The grinder wheel A is of a character which, as above stated, is sufliciently porous to receive within its body the coolant liquid. This wheel is mounted upon a spindle B and is secured thereto by clamping plates C and C, a nut D having a threaded engagement with a portion of the spindle, the parts as thus far described being of any T o introduce the coolant liquid into the body of the wheel I form the spindle with a central chamber E therein which is connected by radially extending ports F with a helical groove G in the portion of its outer surface which is engaged by the wheel A. The clamping plates 0 and C' are recessed at C, C to 2,745,229 Patented May 15, 1956 ice therefrom other than through said porous wheel by seal-' ing rings H and H, the former between the chambers and the periphery of the plates and the latter between said plates and the spindle. there is attached by screw threaded engagement therewith a hollow extension member I. This is surrounded by a non-revoluble member I with ball bearings K and K therebetween. of any liquid therebetween. The outer end portion of the member I has a chamber J therein which is in communication with the hollow member I. A conduit M connected to the member I and in communication with the chamber J therein willsupply water or other coolant liquid at any desired pressure to the chamber E. From this chamber it passes through the radial channels F to the helical groove G from which it will pass in opposite directions to the'chambers-C and C These overlap portions of the side surface of the wheel and the helical groove is adjacent to the surface of the wheel contacting with the spindle. Thus, the pressure will force liquid into the body of the wheel at a relatively high rate sulficient to insure proper cooling of the grinding surface.
What I claim as my invention is:
l. A liquid cooled grinding wheel comprising a grinder body sufficiently porous for passage of liquid therethrough, a hollow rotary spindle on which said'body is mounted having a helical channel in the portion of its surface surroundedby said body with radial ports connecting the space within the spindle and said channel, clamping plates on opposite sides of said body dished to form chambers in communication with said channel, sealing means between said body and plates at the periphery of said chambers and also between said plates and spindle and a connection at the outer end of said spindle for the introduction of cooling liquid under pressure.
2. A construction as in claim 1 in which said connection includes a small diameter tubular extension of said rotary spindle, a non-rotating sleeve surrounding said extension connected to the source of fluid under pressure, an antifriction bearing between said extension and sleeve, and sealing means for preventing leakage of fluid through said bearing.
I Stolzenberg Aug. 8, 1905 Murphy Juliy 25, 1939 At the outer end of the spindle Packing'material L will prevent passage
US483697A 1955-01-24 1955-01-24 Liquid cooled grinder wheel Expired - Lifetime US2745229A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE544092D BE544092A (en) 1955-01-24
US483697A US2745229A (en) 1955-01-24 1955-01-24 Liquid cooled grinder wheel
GB34336/55A GB813910A (en) 1955-01-24 1955-11-30 Improvements in or relating to liquid cooled grinding wheel assemblies
FR1139200D FR1139200A (en) 1955-01-24 1955-12-30 Liquid cooled grinding wheel
CH325569D CH325569A (en) 1955-01-24 1956-01-23 Grinding wheel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US325569XA 1955-01-24 1955-01-24
US813910XA 1955-01-24 1955-01-24
US1139200XA 1955-01-24 1955-01-24
US483697A US2745229A (en) 1955-01-24 1955-01-24 Liquid cooled grinder wheel

Publications (1)

Publication Number Publication Date
US2745229A true US2745229A (en) 1956-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US483697A Expired - Lifetime US2745229A (en) 1955-01-24 1955-01-24 Liquid cooled grinder wheel

Country Status (2)

Country Link
US (1) US2745229A (en)
FR (1) FR1139200A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194751A (en) * 1961-09-01 1965-07-13 Ex Cell O Corp Electrolytic grinder wheel
US3459379A (en) * 1967-01-18 1969-08-05 Beloit Corp Mechanical pulping apparatus
JP2014128865A (en) * 2012-12-31 2014-07-10 Yukio Ito In-abrasive-grain grinding fluid feeder for super abrasive grain electrodeposited abrasive grain and grinding method for the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US796466A (en) * 1904-07-18 1905-08-08 Georg Stolzenberg Grindstone.
US2167282A (en) * 1938-04-16 1939-07-25 David Z Murphy Grinding wheel and a method for cooling the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US796466A (en) * 1904-07-18 1905-08-08 Georg Stolzenberg Grindstone.
US2167282A (en) * 1938-04-16 1939-07-25 David Z Murphy Grinding wheel and a method for cooling the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194751A (en) * 1961-09-01 1965-07-13 Ex Cell O Corp Electrolytic grinder wheel
US3459379A (en) * 1967-01-18 1969-08-05 Beloit Corp Mechanical pulping apparatus
JP2014128865A (en) * 2012-12-31 2014-07-10 Yukio Ito In-abrasive-grain grinding fluid feeder for super abrasive grain electrodeposited abrasive grain and grinding method for the same

Also Published As

Publication number Publication date
FR1139200A (en) 1957-06-26

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