US3457680A - Grind stone head vibrating device of superfinishing machine - Google Patents

Grind stone head vibrating device of superfinishing machine Download PDF

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Publication number
US3457680A
US3457680A US601111A US3457680DA US3457680A US 3457680 A US3457680 A US 3457680A US 601111 A US601111 A US 601111A US 3457680D A US3457680D A US 3457680DA US 3457680 A US3457680 A US 3457680A
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United States
Prior art keywords
vibrators
grind stone
vibrating device
machine
cams
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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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US601111A
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English (en)
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Gisaburo Kondo
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Individual
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Individual
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Classifications

    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
    • B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S451/00—Abrading
    • Y10S451/901—Super finish

Definitions

  • a grind stone head Vibrating device for a superiinishing machine having right and left vibrators supporting the stone heads mounted on at least one pair of upper and ,lower round rods through air bearings.
  • An oscillation ring is rotatably mounted and is provided with a pair of eccentric cams arranged to be equally eccentric in the opposite directions at the side of said right and left vibrators.
  • the right and Aleft hand vibrators are retained movable back and forth in a flanked condition by springs which press the vibrators towards the cams.
  • the present invention relates to a device for giving vibration to the grinding stone heads in a superfnishing machine in which the right and left vibrators supporting the stone heads are mounted on at least one pair of upper and lower parallel round rods through the medium of air bearings and there is also rotatably provided an oscillation ring having a pair of eccentric cams arranged to be equally eccentric in the opposite directions to each other at the middle of the right and left Vibrators, with said vibrators being retained movable back and forth in a sandwiched condition by springs pressing both vibrators against said cams, whereby it is possible to attain frictionless high-speed vibrations with resultant improved durability of the machine and to easily obtain uniform fine surface finish and accurate roundness.
  • an air hammer or crank mechanism is employed to provide vibration to the grind stone heads in a superiinishing machine, but this produces play at both ends of oscillation amplitude, thus inviting undesirable impact, and is also apt to produce irregularity in oscillation amplitude.
  • adoption of a flat spring supporting system for support of the vibrators tends to produce unsteadiness in linear movement and rough motion of the vibrators, thus causing the grinding stone face to impin ge upon the surface of the workpiece.
  • the present invention is designed to eliminate these defects.
  • the invention as described above, is characterized in that the right and left vibrators supporting the stone heads are mounted on at least one pair of upper and lower parallel round rods through air bearings, that there is rotatably provided an oscillation ring having a pair of eccentric cams arranged to be equally eccentric in the opposite directions at the middle of said right and left vibrators, and that said right and left vibrators are retained movable back and forth in a anked condition by springs which press said vibrators towards said cams.
  • FIGURE l is a schematic front view embodying a grind stone head vibrating device according to the present invention.
  • FIGURE 2 is an illustration of the oscillation ring part of the device
  • FIGURE 3 is a side sectional view of the oscillation ring part
  • FIGURE 4 is a side sectional View of an air bearing of the vibrator
  • FIGURE 5 is a diagram illustrating the mechanism of the device according to the present invention.
  • FIGURE 6 is an illustration showing a condition in which the grinding operation is conducted by the device of the present invention.
  • numeral 11 denotes a frame on which are mounted a pair of upper and lower parallel round rod guides 12, 12 each having an exactly circular section, and on these round rod guides 12, 12 are supported by the right and left vibrators 13, 13 through air bearings 14, 14, respectively. It will also be seen that at the middle of said right and left vibrators 13, 13 is provided an oscillation ring 16 having a pair of eccentric cams 16', 16' which are equally deviated in the mutual-ly opposite directions on a separately provided rotatable cam shaft 15.
  • each of said vibrators 13, 13 are detachably mounted a plurality of grind stone heads 20.
  • each vibrator 13 is shown fitted with three grind stone heads 20. Arrangement is also made such that these grind stone heads 20 act to press a shaft 22 bearing the grind stone 21 against the workpiece A.
  • each of the eccentric cams 16', 16' mounted on the oscillation ring 16 is contacted to their respective vibrator 13 through the medium of rollers or ball bearings 25, 25, thereby to attain excellent Iwear resistance and to reduce possible surface resistance resulting from light rolling friction.
  • these eccentric cams 16, 16 are formed integrally and are so arranged as to produce a desired oscillation amplitude a, as shown in FIG. 2, in relation to the cam shaft 15 through cooperation of a taper shaft section 26 and a bolt 27.
  • the oscillation ring 16 is arranged detachably so as to permit free choice of oscillation amplitude by changing the oscillation rings.
  • the air bearings 14, as shown in FIG. 4 are mounted in the shaft supports 28 secured to the rod guides 12, 12 of the right and left vibrators 13, 13 and are also so arranged as to introduce air thereinto as so required, although not shown in the gures.
  • AIt should also be noted that during said movement of the right and left vibrators 13, 13, they are supported on a pair of upper and lower parallel round rod guides 12, 12 through air bearings 14, 14, so that there results no unstable track or abrasion as observed in the conventional systems using flat springs or ball or roll slides. Since each vibrator 13 is kept on the guides 12, 12 in a oated condition by air pressure, it is free of friction and can vibrate at high speed without producing any vertical bouncing due to unsteadiness as in the conventional devices, thus greatly expanding durability of the machine. As a superfinishng is in itself an extremely line finishing process in #-(micron) range, there may be produced postnishing residue due to even a slightest error.
  • the grind stone 21 is always easily fitted to the workpiece even in the presence of an error of several microns on the workpiece, so that the desired superinishing can be completed smoothly within the range of allowable error, whereby the surface roughness is kept under 0.2;.; and the resultant surface 'presents a mirror-like smoothness.
  • the powerful linear cutting operation and stable amplitude and oscillation cycle realized by the present device can completely eliminate dullness at both ends of the workpiece which has heretofore been considered as an inevitable defect in conventional supernishing processes.
  • the surface wavyness which can not be taken olf by grinding is corrected to an advanced degree and uniform tine surface finish and accurate roundness are readily obtained over the full length of the workpiece.
  • the reciprocating motion of said pair of guides '12, 12 eliminates any possibility of impingement of the grind stone 21 against the workpiece A due to bouncing of the vibrators, thus producing little abrasion loss of the grind stone 21 and no damage on the workpiece surface.
  • the present device can attain more ne and accurate finishing, eliminates any abrasion loss of each part and thus greatly contributes to enhancement of durability of the entire apparatus, of which the resulting benefit is incalculable.
  • a grind stone head vibrating device comprising right and left vibrators each supporting at least one grind stone head on at least one pair of upper and lower parallel round rods through the medium of air bearings, and an oscillator ring having a pair of eccentric cams equally deviated in the opposite directions to each other and rotatably mounted between the right and left vibrators, both said vi-brators being movable back and forth in a sandwiched condition by springs ⁇ which press said vibrators against said cams.
  • a grind stone head vibrating device in a superlinishing machine as defined in claim 1 having a frame, said springs being adjusted by nuts in the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US601111A 1965-12-10 1966-12-12 Grind stone head vibrating device of superfinishing machine Expired - Lifetime US3457680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP40076086A JPS5112157B1 (xx) 1965-12-10 1965-12-10

Publications (1)

Publication Number Publication Date
US3457680A true US3457680A (en) 1969-07-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
US601111A Expired - Lifetime US3457680A (en) 1965-12-10 1966-12-12 Grind stone head vibrating device of superfinishing machine

Country Status (4)

Country Link
US (1) US3457680A (xx)
JP (1) JPS5112157B1 (xx)
DE (1) DE1577390C3 (xx)
GB (1) GB1143429A (xx)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576089A (en) * 1968-01-15 1971-04-27 Victor E Magnuson Honing and sharpening machine
FR2565148A1 (fr) * 1984-05-30 1985-12-06 Balenciaga Eizmendi Alberto Tete de ponceuse automatique
FR2604649A1 (fr) * 1986-10-02 1988-04-08 Thielenhaus Maschf Machine a rectifier, en particulier une finisseuse, pour bagues de roulement
US20040121705A1 (en) * 2002-12-19 2004-06-24 Nsk Ltd. Superfinishing apparatus
WO2007073309A1 (en) * 2005-12-22 2007-06-28 Aktiebolaget Skf A vibration device for a super finishing apparatus and an attachment tool comprising the vibration device
CN102357845A (zh) * 2011-10-24 2012-02-22 濮阳贝英数控机械设备有限公司 切入式滚子全能超精装置及工作方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739257A1 (de) * 1977-08-31 1979-03-22 Wacker Chemitronic Vorrichtung und verfahren zum abtragenden bearbeiten von werkstuecken
JP5842550B2 (ja) 2011-11-08 2016-01-13 日本精工株式会社 超仕上げ加工装置、超仕上げ加工方法、及び外輪の製造方法
WO2018062200A1 (ja) * 2016-09-29 2018-04-05 宇部マテリアルズ株式会社 樹脂組成物、マスターバッチペレット並びに樹脂組成物成形体及びその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1037852A (en) * 1911-10-09 1912-09-10 H C Fry Glass Company Polishing-machine.
US2276611A (en) * 1939-05-05 1942-03-17 Micromatic Hone Corp Honing device
US2302105A (en) * 1936-04-27 1942-11-17 Micromatic Hone Corp Abrading device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1037852A (en) * 1911-10-09 1912-09-10 H C Fry Glass Company Polishing-machine.
US2302105A (en) * 1936-04-27 1942-11-17 Micromatic Hone Corp Abrading device
US2276611A (en) * 1939-05-05 1942-03-17 Micromatic Hone Corp Honing device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576089A (en) * 1968-01-15 1971-04-27 Victor E Magnuson Honing and sharpening machine
FR2565148A1 (fr) * 1984-05-30 1985-12-06 Balenciaga Eizmendi Alberto Tete de ponceuse automatique
FR2604649A1 (fr) * 1986-10-02 1988-04-08 Thielenhaus Maschf Machine a rectifier, en particulier une finisseuse, pour bagues de roulement
US20040121705A1 (en) * 2002-12-19 2004-06-24 Nsk Ltd. Superfinishing apparatus
US6872124B2 (en) * 2002-12-19 2005-03-29 Nsk Ltd. Superfinishing apparatus
CN100398260C (zh) * 2002-12-19 2008-07-02 日本精工株式会社 超精加工装置
WO2007073309A1 (en) * 2005-12-22 2007-06-28 Aktiebolaget Skf A vibration device for a super finishing apparatus and an attachment tool comprising the vibration device
US20080318498A1 (en) * 2005-12-22 2008-12-25 Aktiebolaget Skf Vibration Device for a Super Finishing Apparatus and an Attachment Tool Comprising the Vibration Device
US8100741B2 (en) * 2005-12-22 2012-01-24 Aktiebolaget Skf Vibration device for a super finishing apparatus and an attachment tool comprising the vibration device
CN102357845A (zh) * 2011-10-24 2012-02-22 濮阳贝英数控机械设备有限公司 切入式滚子全能超精装置及工作方法
CN102357845B (zh) * 2011-10-24 2013-06-26 濮阳贝英数控机械设备有限公司 切入式滚子全能超精装置及工作方法

Also Published As

Publication number Publication date
DE1577390A1 (de) 1970-02-12
DE1577390B2 (de) 1973-07-05
DE1577390C3 (de) 1974-01-24
JPS5112157B1 (xx) 1976-04-16
GB1143429A (en) 1969-02-19

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