US2201410A - Grinding wheel - Google Patents
Grinding wheel Download PDFInfo
- Publication number
- US2201410A US2201410A US256550A US25655039A US2201410A US 2201410 A US2201410 A US 2201410A US 256550 A US256550 A US 256550A US 25655039 A US25655039 A US 25655039A US 2201410 A US2201410 A US 2201410A
- Authority
- US
- United States
- Prior art keywords
- grinding
- wheel
- elements
- backing plate
- grinding 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
Definitions
- a grinding wheel and grinding wheel having its side or flat surface of the grinding wheel 5 should have a non-continuous grinding face, that is, that different parts of be spaced one from the grinding face should the other, to prevent excessive heating and to provide for the escape of iine material which is separated from the grinding wheel and from the work during the grinding operation.
- One object of simple eiilcient method the invention is to provide a of producing a grinding wheel having a non-continuous lateral grinding face.
- a further object of th a grinding wheel having a e invention is to provide plurality of grinding elements so arranged and connected one to the other as to provide a strong durable grinding
- Fig. 1 is a side elevation, partly broken away, of a grinding wheel embodying my invention
- Fig. 3 is a similar on the line 2-2 of Fig.
- section of a portion of the Fig. 2 is a section taken grinding wheel showing the same as mounted on the head of the grinding wheel.
- the grinding wheel comprises a plurality of grinding elements 5,
- each arcuate grinding element comprises a complete circle
- annular grinding elements are rigidly connected one to the other adjacent those edges thereof which are remote from the grinding edges or faces. This is preferably accomplished by mounting the grinding plate 'l which may be o elements on a backing f steel or other suitable material and which preferably is of the same diameter as the outside diameter of the outermost arcuate grinding element. There may be any suitable number of grinding elements and they may be arranged on the backing plate in any 5 suitable manner which will provide the desired non-continuous grinding face and which will permit the wheel to be maintained in balance. As here shown, three circular grinding elements are arranged concentric with relation one to the other and to the axis of the wheel and are of such width as to provide between them the annular space 6.
- the backing plate shall be of such character that the grinding elements can be molded directly thereon in such a manner as to firmly unite the grinding elements and the backing plate.
- the grinding elements are usually produced by mixing an abrasive substance or grain with a suitable binder to provide a plastic material which can be molded to the desired form and is then baked or otherwise treated to harden the same.
- the recesses are shown as annular, dovetailed grooves 8 formed in the backing plate and each grinding element has at its inner edge a dove-tailed portion 9 Iitting tightly within the corresponding dove-tailed groove.
- the backing plate In the manufacture of the wheel the backing plate is placed in a suitable circular mold provided with partitions arranged to divide the grinding material into separate elements of the desired character.
- the plastic grinding material is introduced into the mold and pressed rmly into the dove-tailed recesses in the backing plate, the various spaces in the mold being iilled to a common level so that the grinding faces of the ,b several grinding elements will be in a common plane.
- the formed grinding wheel is removed therefrom and baked or otherwise treated to properly harden the grinding elements. i.
- the finished wheel may be mounted for rotation in any suitable manner but, as here shown, it is rigidly secured to the rotating head I0 of a grinding machine, as by means of screws Il.
- a disk-Elite rotatable backing plate having means for rigidly seeming the saine to a driving element and having in one face thereof a pluraiityfoi annular grooves arranged about and spaced different distances from the aids of rotation of said backing plate, said grooves being 0f a depth less than the thickness of said backing plate and having their inner portions enlarged, and a plurality o!
- grinding elements each comprising a body of bonded abrasive material having a relatively narrow inner edge portion thereof molded in one o1' said grooves and having on opposite sides of said narrow portions inwardly facing shoulders arranged in supporting contact with said backing plate, each grinding element having at its outer edge a continuous grinding surface land the grinding surfaces of the several grinding elements being arranged in a common plane and spaced radially one from the other.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Malyy 21, 1940. H. R. slMoNDs GRINDING WHEEL Filed Feb. 15. 1939 j 0%7 oww. @7,
Patented May 21,
GRINDING WHEEL Wheel. It is desirable that such a Herbert R. Simonds, Dayton,
White Company,
Simonds Worden Ohio, assignor to Dayton,
2 Claims.
to a grinding wheel and grinding wheel having its side or flat surface of the grinding wheel 5 should have a non-continuous grinding face, that is, that different parts of be spaced one from the grinding face should the other, to prevent excessive heating and to provide for the escape of iine material which is separated from the grinding wheel and from the work during the grinding operation.
One object of simple eiilcient method the invention is to provide a of producing a grinding wheel having a non-continuous lateral grinding face.
A further object of th a grinding wheel having a e invention is to provide plurality of grinding elements so arranged and connected one to the other as to provide a strong durable grinding In the accompanying drawing Fig. 1 is a side elevation, partly broken away, of a grinding wheel embodying my invention;
1; and Fig. 3 is a similar on the line 2-2 of Fig.
section of a portion of the Fig. 2 is a section taken grinding wheel showing the same as mounted on the head of the grinding wheel.
In this drawing ment ofthe invention but that this embodiment has purposes of illustration I have illustrated one embodiit will be understood been chosen for the only and that the details of construction may take various forms,
The grinding wheel comprises a plurality of grinding elements 5,
preferably arcuate in form and arranged in radially spaced relation one to the other with their grinding faces, a common plane transverse to the tion of the wheel. As h or edges, in axis of rotaere shown, each arcuate grinding element comprises a complete circle, the
several elements being of being spaced radially one vide between adjacent space t.
The several different diameters and from the other to proelements an annular grinding elements are rigidly connected one to the other adjacent those edges thereof which are remote from the grinding edges or faces. This is preferably accomplished by mounting the grinding plate 'l which may be o elements on a backing f steel or other suitable material and which preferably is of the same diameter as the outside diameter of the outermost arcuate grinding element. There may be any suitable number of grinding elements and they may be arranged on the backing plate in any 5 suitable manner which will provide the desired non-continuous grinding face and which will permit the wheel to be maintained in balance. As here shown, three circular grinding elements are arranged concentric with relation one to the other and to the axis of the wheel and are of such width as to provide between them the annular space 6.
In order that the grinding elements may be easily but rigidly attached to the backing plate in such a manner as to provide a strong durable wheel at a low cost I prefer that the backing plate shall be of such character that the grinding elements can be molded directly thereon in such a manner as to firmly unite the grinding elements and the backing plate. As is well understood the grinding elements are usually produced by mixing an abrasive substance or grain with a suitable binder to provide a plastic material which can be molded to the desired form and is then baked or otherwise treated to harden the same. In the present construction the recesses are shown as annular, dovetailed grooves 8 formed in the backing plate and each grinding element has at its inner edge a dove-tailed portion 9 Iitting tightly within the corresponding dove-tailed groove. In the manufacture of the wheel the backing plate is placed in a suitable circular mold provided with partitions arranged to divide the grinding material into separate elements of the desired character. The plastic grinding material is introduced into the mold and pressed rmly into the dove-tailed recesses in the backing plate, the various spaces in the mold being iilled to a common level so that the grinding faces of the ,b several grinding elements will be in a common plane. After the mold has been iilled the formed grinding wheel is removed therefrom and baked or otherwise treated to properly harden the grinding elements. i.
The finished wheel may be mounted for rotation in any suitable manner but, as here shown, it is rigidly secured to the rotating head I0 of a grinding machine, as by means of screws Il.
It will be apparent that in the grinding wheel 50 so produced the several grinding elements are spaced one from the other to provide a noncontinuous grinding face and are rigidly secured to the backing plate so that the wheel as a whole, including the grinding elements and the backing plate. may readily secured to and removed from the rotating head oi the grinding machine. It will be understood that while prefer to use circular grinding elements these elemente .may
be segmental in form or otherwise arranged to provide the desired surface.
While I have shown and described one embodiment of my invention I wish it to loe understood plurality of annular grooves arranged concentric one with the other and with the axis of rotation of said backing plate, said grooves being of a depth less than the thickness of said backing plate and having enlarged inner portions, a plurality of one piece annular grinding elements oi' bonded abrasive material molded in the respective grooves, extending outwardly there asoma@ from in radiaiily spaced relation ene to the other and having on their outer edges annular grinding surfaces spaced radially one trom the other.
2. in a grinding wheel. a disk-Elite rotatable backing plate having means for rigidly seeming the saine to a driving element and having in one face thereof a pluraiityfoi annular grooves arranged about and spaced different distances from the aids of rotation of said backing plate, said grooves being 0f a depth less than the thickness of said backing plate and having their inner portions enlarged, and a plurality o! grinding elements each comprising a body of bonded abrasive material having a relatively narrow inner edge portion thereof molded in one o1' said grooves and having on opposite sides of said narrow portions inwardly facing shoulders arranged in supporting contact with said backing plate, each grinding element having at its outer edge a continuous grinding surface land the grinding surfaces of the several grinding elements being arranged in a common plane and spaced radially one from the other.
HERBERT R. SFMONDS. 25
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256550A US2201410A (en) | 1939-02-15 | 1939-02-15 | Grinding wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US256550A US2201410A (en) | 1939-02-15 | 1939-02-15 | Grinding wheel |
Publications (1)
Publication Number | Publication Date |
---|---|
US2201410A true US2201410A (en) | 1940-05-21 |
Family
ID=22972656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US256550A Expired - Lifetime US2201410A (en) | 1939-02-15 | 1939-02-15 | Grinding wheel |
Country Status (1)
Country | Link |
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US (1) | US2201410A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543165A (en) * | 1945-04-12 | 1951-02-27 | Honan Crane Corp | Oil filter |
US2749683A (en) * | 1954-10-05 | 1956-06-12 | Western Electric Co | Lapping plate |
US2764543A (en) * | 1952-09-20 | 1956-09-25 | Norton Co | Electrolytic grinding apparatus |
US2826015A (en) * | 1954-08-12 | 1958-03-11 | Bisterfeld & Stolting | Rotary grinding wheels |
DE1038435B (en) * | 1954-03-20 | 1958-09-04 | Werner Osenberg Dr Ing | Grinding tool for processing materials of high strength and hardness with hard material grinding rings arranged concentrically on a carrier disk |
US2867063A (en) * | 1956-02-28 | 1959-01-06 | Super Cut | Multiple grinding wheel |
US3110985A (en) * | 1962-06-25 | 1963-11-19 | Edwin J Brauchle | Cutlery grinding apparatus |
DE1270982B (en) * | 1961-09-25 | 1968-06-20 | Diamant Boart Sa | Diamond face grinding wheel |
US4442637A (en) * | 1979-03-27 | 1984-04-17 | Alexander Ahejew | Simultaneous double-acting split abrasive wheel for peripheral sharpening of helix tools and use thereof |
US4507897A (en) * | 1982-12-20 | 1985-04-02 | Loram Maintenance Of Way, Inc. | Grinding head assembly |
US20100071271A1 (en) * | 2006-10-20 | 2010-03-25 | Jtekt Corporation | Method for manufacturing grinding wheel having depressions on grinding surface thereof |
-
1939
- 1939-02-15 US US256550A patent/US2201410A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543165A (en) * | 1945-04-12 | 1951-02-27 | Honan Crane Corp | Oil filter |
US2764543A (en) * | 1952-09-20 | 1956-09-25 | Norton Co | Electrolytic grinding apparatus |
DE1038435B (en) * | 1954-03-20 | 1958-09-04 | Werner Osenberg Dr Ing | Grinding tool for processing materials of high strength and hardness with hard material grinding rings arranged concentrically on a carrier disk |
US2826015A (en) * | 1954-08-12 | 1958-03-11 | Bisterfeld & Stolting | Rotary grinding wheels |
US2749683A (en) * | 1954-10-05 | 1956-06-12 | Western Electric Co | Lapping plate |
US2867063A (en) * | 1956-02-28 | 1959-01-06 | Super Cut | Multiple grinding wheel |
DE1270982B (en) * | 1961-09-25 | 1968-06-20 | Diamant Boart Sa | Diamond face grinding wheel |
US3110985A (en) * | 1962-06-25 | 1963-11-19 | Edwin J Brauchle | Cutlery grinding apparatus |
US4442637A (en) * | 1979-03-27 | 1984-04-17 | Alexander Ahejew | Simultaneous double-acting split abrasive wheel for peripheral sharpening of helix tools and use thereof |
US4507897A (en) * | 1982-12-20 | 1985-04-02 | Loram Maintenance Of Way, Inc. | Grinding head assembly |
US20100071271A1 (en) * | 2006-10-20 | 2010-03-25 | Jtekt Corporation | Method for manufacturing grinding wheel having depressions on grinding surface thereof |
US8444726B2 (en) * | 2006-10-20 | 2013-05-21 | Jtekt Corporation | Method for manufacturing grinding wheel having depressions on grinding surface thereof |
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