US2312011A - Expansible hone - Google Patents

Expansible hone Download PDF

Info

Publication number
US2312011A
US2312011A US265109A US26510939A US2312011A US 2312011 A US2312011 A US 2312011A US 265109 A US265109 A US 265109A US 26510939 A US26510939 A US 26510939A US 2312011 A US2312011 A US 2312011A
Authority
US
United States
Prior art keywords
core structure
fluid
expansible
tool
bars
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
US265109A
Inventor
David A Wallace
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.)
Old Carco LLC
Original Assignee
Chrysler Corp
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
Application filed by Chrysler Corp filed Critical Chrysler Corp
Priority to US265109A priority Critical patent/US2312011A/en
Priority to US362866A priority patent/US2312013A/en
Application granted granted Critical
Publication of US2312011A publication Critical patent/US2312011A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00Honing machines or devices; Accessories therefor
    • B24B33/08Honing tools
    • B24B33/085Honing tools in which the honing element consists of a deformable body

Definitions

  • The' present invention relates to the art of finishing surfaces such as cylindrical bores and comprises improvements in the structure of expansible hones and the thereof.
  • the invention comprises an expansible honing tool including a plurality of abrading elements, the tool being so constructed and arranged that the diameter of the tool may be increased after insertion of the tool into a bore by the application of fluid pressure whereby the abrading elements are held against the surface of the bore under fluid pressure, and in which the diameter of the tool may be reduced automatically in response to the release of fluid pressure whereby the tool may be withdrawn from the bore and inserted in another bore to be finished.
  • the invention comprises the use of resilient, fluid-impervious expanding members operated by fluid pressure whereby even pressure may be exerted against the abrading elements throughout the extent of the work surfa'cein order that a uniform finish may be accomplished.
  • FIG. 1 disclosesa preferred form of my invention in operation;
  • Fig. 2 is a: horizontal section taken alongline 2-2 of Fig. i; and
  • Fig. 3 is a horizontal section, similar to Fig. 2, of a modifled form of hone.
  • a core struc- 'ture I0 comprising a s'tem I I and a body I2 having an integral flange I3 and a threaded shoulder I4.
  • the flange I3 is at one end of the body portion I2 and a collar I5 of substantially the same diameter is slidably fastened to thelower end of the body I2 by a key I8.
  • the flange I3 forms a fixed mounting means for one end of a hollow, resilient, fluid-impervious, substantially cylindrical expanding member I1 and the collar I5 forms a sliding mounting member for the other end of the exmeans of operation pander Il.
  • the expander Il preferably comprises a substantially thick wall of fluid-impervious material such as soft rubber cured to a self-sustaining but resilient state.
  • a plurality of rigid mounting bars 40 are imbedded in the wall of the expander, the bars being preferably equally spaced about the circumference of the expander and extending longitudinally thereof from a ⁇ point adjacent the collar I3 to a point adjacent the collar I5.
  • Abrading elements 4I are fixed to the mounting bars 40 so a's to protrude beyond the surface of the expander Il, the abrading elements being preferably long and narrow and being formed ofarticial material or natural stone commonly used for honing purposes.
  • the surfaces of the mounting bars 40 may be adhered to the adjacent surfaces of the member Il by any well-known process such as vulcanizatlon.
  • Fig. 1 shows the honing member inserted within the cylindrical bore 45 of a cylinder block 46 and illustrates the use of the tool.
  • the normal diameter of the tool (from the outer surfaces.. of diametrically opposite abrading elements) is preferably slightly less than the internal diameter of the bore 45 when the tool is in normal or nonexpanded ccnditionso that the tool may be inserted in the bore without dimculty.
  • the w01 When the w01 is in position num may/be adnntted to the interior of the expander I1,/whereupon uniform pressure will be exerted throughout the interior 'of the expander and each of the expanding elements will be caused to move radially outward to substantially the same extent under substantially vthe same prssure.
  • the tool may now be rotated and vertically reciprocated, as is usual in the practice of finishing cylindrical bores.
  • the fluid pressure may be released whereupon the expander I1 will automatically contract, permounting bars Il in order to reduce the amount of material necessary.
  • the expander l1 isy shown as being f formed of a substantially thin wall of resilient material, the outer surfaceof which is substantially cylindrical but which isprovided 'with a plurality of inwardly extending corrugations 50, to the outer surfaces yof ⁇ which lare bonded the mounting bars 40.
  • the abrading elements Il When fluid pressure is exerted against the interior surface of the form shown in Fig. 3, the abrading elements Il will be moved outward uniformly under, uniform pressure, and, in addition, the sides of the mounting bars Il! will be'strongly gripped by the materialcomprising the corrugations 50 due to the exertion of pressure against ythe walls of the corrugations.
  • An expansible hone for use in finishing cylindrical bores comprising a corestructure having an inlet and an outlet for the passage of fluids therethrough, a running gland rassociated with said core structure andhaving a fluid passageway communicating with the interior of said core structure, a substantially cylindrical, resilient, hollow, fluid-impervious member mounted on said core structure and Vsurrounding the outlet from said core structure, an abrading element supportmovable therewith kas said membery is expanded by fluid pressure transmitted through said fluid passageway, and a honing stone fixed to said bar and protruding beyond the surface of said member.
  • An expansible hone for use in finishing cylindrical bores'comprlsing acore structure having an vinlet and an outlet for the kpassageof fluids therethrough, a running gland associated with said core structure and having a fluid passageway communicating with the interior of said core structure, a substantially cylindrical, re-
  • An'expansible hone for use in'flnishing cylindrical bores comprising Ya core structurelhaving an inlet and an outlet for the passage of fluids therethrough, a thick-walled, ⁇ cylindrical shell of softl rubber mounted ⁇ onsaid core structure and surrounding the outlet'from said .core structure, a plurality of rigid mounting 'bars f imbedded ir.
  • An expansible hone for use in finishing cylindrical bores comprising a core structurehav- 'ing an inlet and an outletfor the passage of fluids therethrough, a thin-walled, vcylindrical shell of soft rubb'er mounted on said :core structure and surrounding said outlet, said shell having a plurality of inwardly extending longitudinal corrugations, a mounting ⁇ bar bonded to the outer surface of each of said corrugations, and

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

D. A, WALLACE l*2,312,011
EXPANSIBLE Hows Filed March 31,!1939 QN sm x y; "x/I Patented Feb. 23, 1943 EXPANSIBLE BONE David A. Wallace, Betr-oit, Mich., assigner to Chrysler Corporation, Highland Park, Mich., a
corporation of Delaware Application March 31, 1939, Serial No. 265,109
(Cl. 51184.l)
s claims The' present invention relates to the art of finishing surfaces such as cylindrical bores and comprises improvements in the structure of expansible hones and the thereof.
The invention comprises an expansible honing tool including a plurality of abrading elements, the tool being so constructed and arranged that the diameter of the tool may be increased after insertion of the tool into a bore by the application of fluid pressure whereby the abrading elements are held against the surface of the bore under fluid pressure, and in which the diameter of the tool may be reduced automatically in response to the release of fluid pressure whereby the tool may be withdrawn from the bore and inserted in another bore to be finished. The invention comprises the use of resilient, fluid-impervious expanding members operated by fluid pressure whereby even pressure may be exerted against the abrading elements throughout the extent of the work surfa'cein order that a uniform finish may be accomplished. The principal object of the invention related above is achieved by simple,
I easily manufactured and assembled means.
Other objects and advantages of the invention will be apparent from a study of the following specification and accompanying drawing, wherein like numerals refer to like parts throughout. In the drawing Fig. 1 disclosesa preferred form of my invention in operation; Fig. 2 is a: horizontal section taken alongline 2-2 of Fig. i; and Fig. 3 is a horizontal section, similar to Fig. 2, of a modifled form of hone. l i
In Figs. l and 2 there is disclosed a core struc- 'ture I0 comprising a s'tem I I and a body I2 having an integral flange I3 and a threaded shoulder I4. The flange I3 is at one end of the body portion I2 and a collar I5 of substantially the same diameter is slidably fastened to thelower end of the body I2 by a key I8. The flange I3 forms a fixed mounting means for one end of a hollow, resilient, fluid-impervious, substantially cylindrical expanding member I1 and the collar I5 forms a sliding mounting member for the other end of the exmeans of operation pander Il. The relatively thin end portions of the l vertically in order to accommodate such radialv whereby a fluid may be forced through the interior of the core structure into the interior of the expanding member. Such fluid may be admitted through a running gland 25comprising a non-rotative collar 26 mounted between rotative collars 21 and 28 fixed to the stem I I.r The uid may be forced through a pipe 30 into an annular space 3| communicating with the inlets 22, which space is provided in the interior surface of a ring 33 mounted between the stem I I and the running collar 26, and held in position by packing members 34 and 35 The pipe 30 may be connected to a source of fluid pressure (not shown)v by a resilient connection permitting vertical movement of the tool, and since the stem I I is free to rotate within the collar 25 the annular groove 3| will be at all times in communication with the interior o f the core structure. y
The expander Il preferably comprises a substantially thick wall of fluid-impervious material such as soft rubber cured to a self-sustaining but resilient state. A plurality of rigid mounting bars 40 are imbedded in the wall of the expander, the bars being preferably equally spaced about the circumference of the expander and extending longitudinally thereof from a` point adjacent the collar I3 to a point adjacent the collar I5. Abrading elements 4I are fixed to the mounting bars 40 so a's to protrude beyond the surface of the expander Il, the abrading elements being preferably long and narrow and being formed ofarticial material or natural stone commonly used for honing purposes. The surfaces of the mounting bars 40 may be adhered to the adjacent surfaces of the member Il by any well-known process such as vulcanizatlon.
\ Fig. 1 shows the honing member inserted within the cylindrical bore 45 of a cylinder block 46 and illustrates the use of the tool. The normal diameter of the tool (from the outer surfaces.. of diametrically opposite abrading elements) is preferably slightly less than the internal diameter of the bore 45 when the tool is in normal or nonexpanded ccnditionso that the tool may be inserted in the bore without dimculty. When the w01 is in position num may/be adnntted to the interior of the expander I1,/whereupon uniform pressure will be exerted throughout the interior 'of the expander and each of the expanding elements will be caused to move radially outward to substantially the same extent under substantially vthe same prssure. The tool may now be rotated and vertically reciprocated, as is usual in the practice of finishing cylindrical bores. When the operation has progressed to a suicient extent the fluid pressure may be released whereupon the expander I1 will automatically contract, permounting bars Il in order to reduce the amount of material necessary.
In Fig. 3 the expander l1 isy shown as being f formed of a substantially thin wall of resilient material, the outer surfaceof which is substantially cylindrical but which isprovided 'with a plurality of inwardly extending corrugations 50, to the outer surfaces yof `which lare bonded the mounting bars 40. When fluid pressure is exerted against the interior surface of the form shown in Fig. 3, the abrading elements Il will be moved outward uniformly under, uniform pressure, and, in addition, the sides of the mounting bars Il! will be'strongly gripped by the materialcomprising the corrugations 50 due to the exertion of pressure against ythe walls of the corrugations. l
Having illustrated and described several embodiments of my invention it should now be apparent to those skilled in the art that the vinvention permits of various modiflcationsin arrangement and details. All such modications as come within the scope of the following claims are considered a part of my invention.
I claim:
`1. An expansible hone for use in finishing cylindrical bores comprising a corestructure having an inlet and an outlet for the passage of fluids therethrough, a running gland rassociated with said core structure andhaving a fluid passageway communicating with the interior of said core structure, a substantially cylindrical, resilient, hollow, fluid-impervious member mounted on said core structure and Vsurrounding the outlet from said core structure, an abrading element supportmovable therewith kas said membery is expanded by fluid pressure transmitted through said fluid passageway, and a honing stone fixed to said bar and protruding beyond the surface of said member. Y a
2. An expansible hone for use in finishing cylindrical bores'comprlsing acore structure having an vinlet and an outlet for the kpassageof fluids therethrough, a running gland associated with said core structure and having a fluid passageway communicating with the interior of said core structure, a substantially cylindrical, re-
silient, hollow, fluid-impervious member mounted on said core structure and surrounding the outlet from said core structure, a plurality of abrading element supporting bars imbedded in the wall yof said member and movable therewith as said member is expanded by fluid pressure transl radial directions by expansion and-,contraction thereof in response to fluid pressure therein, said elements being spaced about the surface of said shell and extending substantially longitudinally thereof and parallel to the `longitudinal axis of said core structure.` 4.,'An expansible hone for use Ainflnishing'cylindrical bores comprising a core `structure having an inlet and an outlet, for the passage of fluids therethrough, 'a thick-walled, cylindrical shell of soft rubber mounted on said corestructure and surroundingthe outlet from said core structure, a plurality of rigid'mounting bars imi bedded inthe wall of said shell, and a plurality of abrading elements carried by'saidbars and ex-v tending beyond the `surfaceof said shell, said bars and elementsV being movable inradialdirecying lbar imbedded in the wall of said member andV tions by the expansion and contraction of said shell in response to fluid `pressure therein;
5. An'expansible hone for use in'flnishing cylindrical bores comprising Ya core structurelhaving an inlet and an outlet for the passage of fluids therethrough, a thick-walled,` cylindrical shell of softl rubber mounted `onsaid core structure and surrounding the outlet'from said .core structure, a plurality of rigid mounting 'bars f imbedded ir.
the wall of said shell, and a plurality of abrading elements carried by said bars and extending be.-
yond the surface ofsaid shellt/saidbars and elel ments being movable in radial: directionsby the expansion and contractioniof saidfshell in 'response to fluid pressure therein, said bars and elements extending longitudinally of said shell.
6. An expansible hone for use in finishing cylindrical bores comprising a core structurehav- 'ing an inlet and an outletfor the passage of fluids therethrough, a thin-walled, vcylindrical shell of soft rubb'er mounted on said :core structure and surrounding said outlet, said shell having a plurality of inwardly extending longitudinal corrugations, a mounting `bar bonded to the outer surface of each of said corrugations, and
US265109A 1939-03-31 1939-03-31 Expansible hone Expired - Lifetime US2312011A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US265109A US2312011A (en) 1939-03-31 1939-03-31 Expansible hone
US362866A US2312013A (en) 1939-03-31 1940-10-25 Expansible hone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US265109A US2312011A (en) 1939-03-31 1939-03-31 Expansible hone

Publications (1)

Publication Number Publication Date
US2312011A true US2312011A (en) 1943-02-23

Family

ID=23009035

Family Applications (1)

Application Number Title Priority Date Filing Date
US265109A Expired - Lifetime US2312011A (en) 1939-03-31 1939-03-31 Expansible hone

Country Status (1)

Country Link
US (1) US2312011A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085014A (en) * 1989-08-25 1992-02-04 Maschinenfabrik Gehring Gmbh & Co. Honing tool and method for the surface machining of bore walls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085014A (en) * 1989-08-25 1992-02-04 Maschinenfabrik Gehring Gmbh & Co. Honing tool and method for the surface machining of bore walls

Similar Documents

Publication Publication Date Title
US2357123A (en) Apparatus for producing pressure-tight tube and tube seat connections
US3776561A (en) Formation of well packers
US3010194A (en) Apparatus for covering rolls with flexible tubing
US3140107A (en) Tube coupling having sealing and anchoring means
US2275451A (en) Method of producing pressure tight tube and tube-seat connections
FI57222B (en) ANORDINATION FOR MAGNETIC FORMATION OF ROBFORM FOR METAL ARCTING
US3188690A (en) Apparatus for the production of corrugated tubes
US2581787A (en) Manufacturing highly resilient corrugated tubes
US2671297A (en) Method of finishing internal bores
US2312011A (en) Expansible hone
US3134442A (en) Apparatus for lining wells
US1725286A (en) Hose and fitting
US3228678A (en) Apparatus for fitting bonded couplings to flexible or semi-flexible tubular conduits
US3460221A (en) Elastic calender roller with cover of synthetic material
US2678247A (en) Long-stroke fluid serov
US2435837A (en) Cylinder liner
US2312013A (en) Expansible hone
US2960142A (en) Hydro rubber forming of metal
US2312012A (en) Expansible hone
US2485692A (en) Control valve
US1834128A (en) Method and apparatus for improving the texture of hollow metal bodies
US2702446A (en) Lap
US2624603A (en) Well packer rubber
US2544302A (en) Heading die and method of making it
US3448773A (en) Sealing and clamping heads