US3817149A - Compensation of unbalance in rotary bodies - Google Patents

Compensation of unbalance in rotary bodies Download PDF

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Publication number
US3817149A
US3817149A US00368217A US36821773A US3817149A US 3817149 A US3817149 A US 3817149A US 00368217 A US00368217 A US 00368217A US 36821773 A US36821773 A US 36821773A US 3817149 A US3817149 A US 3817149A
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United States
Prior art keywords
cutter
axis
unbalance
groove
cutting
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Expired - Lifetime
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US00368217A
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English (en)
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W Reutlinger
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REUTLINGER AND SOHNE
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REUTLINGER AND SOHNE
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/30—Compensating imbalance
    • G01M1/34—Compensating imbalance by removing material from the body to be tested, e.g. from the tread of tyres
    • 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
    • Y10S29/00—Metal working
    • Y10S29/901—Balancing method
    • 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
    • Y10S82/00—Turning
    • Y10S82/903—Balancing and centering
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303752—Process
    • Y10T409/303808—Process including infeeding
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/303864—Milling with means to weigh or test work or product
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307224—Milling including means to infeed rotary cutter toward work with infeed control means energized in response to activator stimulated by condition sensor
    • Y10T409/307336—In response to work condition
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/30756—Machining arcuate surface
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307784—Plural cutters
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2527—Lathe having hollow cutter head

Definitions

  • the present invention relates to compensation of unbalance of rotary bodies. Balancing rotary bodies generally proceeds in several, sequential steps. In the first step the unbalance is determined with balancing machines (or more correctly unbalance measuring machines"), operating with reference to one or more compensation planes. Particularly, location and size of the unbalance is quantitatively determined. The unbalances, so determined, are compensated in a second step according to which mass corrections corresponding to the measured values are performed in the predetermined compensation plane(s).
  • mass corrections can be carried out by adding or removing mass increments on a previously determined compensation radius.
  • This first compensation process is generally followed by a second determination of any residual unbalance remaining after the compensation process. If the residual unbalance exceeds the prescribed maximum and permitted tolerance, this unbalance check must be followed by a second compensation process, which is generally followed by a determination of the still remaining residual unbalance etc.
  • the unbalance data can be determined within a few seconds using conventional measuring methods, but comparatively speaking, the mass compensation takes much longer.
  • the time for the complete balancing process is, therefore, largely determined by the type and preparation of the mass compensation.
  • correction is performed by adding or removing mass, whereby particularly in large scale production, great importance is attached to mass removal by cutting.
  • the present invention therefore, relates particularly to unbalance compensation by means of cutting local excess mass from the body.
  • the most frequently used type of cutting mass compensation takes place by drilling in the unbalance resultant axis of the unbalance or in unbalance components (located balancing) along a superimposed (hypothetical) coordinate system.
  • the rotary body is rotated under a drill about its rotation axis in such a way that the unbalance faces the drill bit in the compensation plane to be corrected.
  • one or several holes are drilled into the body, the holes or bores being arranged symmetrically relative to the resulting unbalance position whereby the quantity of the material cut corresponds to the measured unbalance, based on the effective compensation ratios.
  • the cutting mass compensation is carried out first in one of the component axes; thereafter the rotary body must be rotated in the same compensation plane until the drill is oriented to the second component axis whereupon that unbalance component is also corrected by drilling.
  • the rotary body On completion of the mass compensation in one compensation plane, the rotary body is rotated about its axis in such a way that the unbalance again faces the drill bit in its second compensation plane.
  • mass compensation takes place by drilling one or more holes, or when balancing in components holes are arranged in relation to two points in this sec- 0nd compensation plane, which points are displaced at a particular angle to one another.
  • the blank When balancing in more than two compensation planes, e.g., as necessary with crankshafts, the blank may have to be rotated into three or more angular positions; even if balancing is carried out automatically.
  • a particular disadvantage of compensation by means of drilling holes is that, particularly with rapidly moving parts, annoying whistling sounds may occur.
  • compensation holes on parts rotating in a liquid sometimes turbulence of the liquid medium can have a disadvantageous effect.
  • an elongated slot is often made in the outer periphery of the armature bars in an electro motor. For this, either a side milling cutter is introduced or a groove is cut out, a result of consecutive axial displacement. Due to the geometry of the bars, the possible insertion depth of the cutter is limited, and since milling an elongated slot is possible only to a certain degree (changing the spacings of the preselected compensation planes), milled slots must often be made in several adjacent bars, which is also time-consuming.
  • Mass compensation by milling poses the same difficulties regarding any automation of the compensation process, because each individual cutting must be evaluated individually for its effects on the remaining mass and on the effective compensation radius, and these individual values must be summated taking into account the angle as varying relative to the unbalance resultant.
  • the invention is based on the principle of cutting peripheral grooves into a rotary body for unbalance compensation, and assumes that previously an unbalance measurement took place.
  • the invention is characterized in that a groove making tool is moved over an arc whose axis is parallel to the axis of the rotary body but eccentric thereto, and the machining diameter is larger than the diameter of the rotary body at the machining point; the machining feed or advance takes place by parallel displacement of the movement axis of the tool and in a predetermined radial direction.
  • a groove is produced by carrying out the invention, which groove extends at right angles to the axial direction of tool and blank; the groove extends over part of the periphery and has a depth which decreases azimuthally from the deepest point in the center to both sides.
  • a groove or slot is formed pointing in the direction of rotation which groove gradually merges into the periphery of the rotary body. Due to the gradual transition, whistling is reliably prevented and as the groove extends azimuthally, magnetic interference in electric motors is also reduced.
  • the width of the slot can be increased by moving the tool axially during the machining process to widen the groove or the slot.
  • the rotation axis of the tool can move not only radially but also in an are about the axis of the rotary body during cutting, so that the azimuthal extension of the groove can be controlled without changing the maximum depth.
  • such a groove has not only transition portions at the beginning and end, but also, a possible long zone of constant depth.
  • the following movements and placements are to be distinguished. Beginning with a coaxial disposition of tool and body, the tools axis is shifted and displaced transverse to the body axis, radially thereto. The direction of that radial displacement takes place in the radial direction of the excess-mass unbalance. As the tool rotates on its axis, the simplest form of a balance correcting groove is produced. The radial advance here determines the maximum depth. The axis of the tool can then be turned about the body axis over an arc to lengthen the groove azimuthally without increasing itsdepth; the tool can be shifted axially to widen the groove.
  • the machining tool for the fixedly held rotational solid has one or several cutting blades or teeth whose mounting can rotate about an axis which is parallel to the axis of the rotary body.
  • the cutting blades are inwardly directed on the rotation axis of their support.
  • the rotatable support for this cutting tool can slide in a frame at right angles to the rotation axis; this frame is rotatable about the axis of the rotary body. That rotation, however concerns only the adjustment of the tool in relation to the direction of the excessmass unbalance.
  • the preferred embodiment of the invention employs a milling cutter whose cutting blades or teeth are arranged inside of a sleeve so as to act towards the center thereof.
  • the diameter of the addendum line or machining circle of this milling cutter is larger than the external diameter of the rotary body in the machining plane, so that the azimuthal extension of the groove as cut follows indeed a circle of larger diameter than the diameter of the blank.
  • the body can be shifted into the sleeve initially in coaxial relation, and the adjustment of the milling cutter into an eccentric position is controlled subsequently so as to obtain the eccentrically located compensation groove in the body.
  • FIGS. 1 and 2 respectively show front and side elevation of an apparatus according to the preferred embodiment of the invention, together with the rotary body to be machined;
  • FIGS. 3 and 4 are the schematic representation of grooves cut into the body, whereby the cutter was adjusted only radially during cutting in FlG. 3, while there was additional azimuthical adjustment in FIG. 4;
  • FIG. 5 is a front elevation of a modified apparatus for carrying out compensation cutting.
  • FIGS. 1 and 2 show a rotary body 1 to be compensated as being clamped to a machine base 3 by means of two clamping jaws 2.
  • a stand or holder 8 is slidably mounted in base 3.
  • the holder 8 is the principle support for a machining tool which is constructed as an internal milling cutter.
  • the cutter has a mounting annulus sleeve or mounting ring 4 for cutting teeth or blades 4a.
  • the blades or teeth are arranged to project inwardly from the mounting ring 4, whereby, however, the diameter of the machining circle 4 b is larger than the external diameter of the rotary body in the machining plane.
  • the rotary body is placed in an initial position prior to the machining process, in which initial position the rotation axis of the cutter coincides with the rotation axis of the rotary body.
  • the rotary body can easily be passed through the cutter and then held in the machining position by drawing together the clamping jaws 2.
  • the machine tool art provides further examples of devices for inserting blanks in internal cutters and holding them there.
  • the internal milling cutter ring 4 is mounted in an easily replaceable manner in a tool holder 5, which, in turn, is rotatably mounted in a sliding carriage 6.
  • Sleeve 5 is driven by the motor 18 and rotates about the axis of the internal cutter for obtaining milling operation.
  • the carriage 6 does not follow that rotation, but serves as stationary support for motor 18.
  • Sliding carriage 6 is mounted together with the support for tool holder 5 in a frame 7, having guide rails 7a and 7b for permitting the carriage 6 to slide in a direction (axis 6a) transverse to the axis of body 2 as well as transverse to the milling axis.
  • the carriage 6 can be driven for sliding in frame 7 by means of a stepping motor driving a worm gear 10a which, in turn, moves carriage 6 along the said direction or carriage axis 6a.
  • Frame 7 has an internal hub portion 7c for journalling the frame in stand or holder 8.
  • the journal axis for that rotatable support is coaxial with the axis of body so as to permit turning of the frame 7 concentric to and about the axis of body.
  • the journal is shown as sleeve bearing without constructive details, as the bearing can be designed differently.
  • Frame 7 together with mounted sliding carriage 6, wherein tool holder 5 is rotatable may be turned by a servomotor 9 which is constructed as a stepping motor and rotates the sliding carriage axis 6a by the measured angle about the axis of body 1 from an initial position to the unbalance position as had been marked previously on the rotary body.
  • a servomotor 9 which is constructed as a stepping motor and rotates the sliding carriage axis 6a by the measured angle about the axis of body 1 from an initial position to the unbalance position as had been marked previously on the rotary body.
  • the axis 6a or a projection thereof into the plane of the milling cutter where intersecting the periphery of body marks the point of maximum cutting action that will take place.
  • the azimuth of that point is changed and will be adjusted in accordance with the azimuth of the unbalance in body.
  • the machining feed of the tool 4 takes place with the aid of the second servomotor 10 which moves sliding carriage 6 and therefore, also internal cutter blades or teeth 4a towards body 1, constituting a blank for this operation.
  • the radial advance of carriage 6 with milling cutter 4, 4a, in frame 7, involves two concatenated distances in each instance. The first incremental distance leads from the concentric position of cutter and body to a tangential arrangement of the machining circle of the cutting teeth or blade with the body. The second incremental distance traversed determines the maximum depth of cutting.
  • the motor 10 is under control of a circuit 100 which may operate the motor 10 in a quasi closed loop advancing carriage 6, until the teeth or blades 4a contact body 2.
  • This contact can be determined in known manner, for example, by electrical contact read-out or by a torque switch in the cutter drive.
  • the number of steps of the stepping motor 10 to be performed after contact has been made is determined by the stored measuring signal corresponding to the unbalance magnitude and established previously on an unbalance measuring machine during the previous unbalance measuring sequence, taking into account the non-linearity between the nonuniform groove depth, cut mass and effective compensation radius.
  • FIGS. 3 and 4 show the slot forms obtained; in FIG. 3, the slot was obtained exclusively by means of a radial movement of the cutter on the previously adjusted but fixed axis 6a.
  • the reference numberal 4c denotes the bottom of the groove cut and the diameter of that bottom circle is determined by the machining circle 40 of the cutter, which is larger than the diameter of body 1. This then accounts for the configuration of the groove with a maximum depth and gradual merging with the periphery of body 1.
  • the slot has resulted from a radial movement of the cutter as before, but additionally the frame 7 was turned over a certain angle a. This way, the azimuthal length of the groove has increased in that there is now a portion of constant depth and the length thereof spans that angle a.
  • FIGS. 3 and 4 show that the amount of mass removed is very accurately determinable on basis of the milling radius, of the body radius, of the eccentricity of milling circle and body peripheries as adjusted (this is the variable parameter in the process) and, of course, on basis of the groove width as cut by the particular milling cutter teeth.
  • FIG. 2 it is easily possible to make use of the invention concurrently in two compensation planes by using two corresponding devices located on both sides of the body to be compensated to simultaneously perform the compensation in the two compensation planes.
  • This is particularly advantageous in the case of mass correction on crankshafts where clue to the angular arrangement of the counterweights, whereon the mass correction must be performed, the feed direction of the cutter relative to the crankshaft as mounted in a particular angular position is fixed from the start.
  • the correction data obtained from the unbalance measurement and related to the individual counterweights and their particular angular position directly control the cutter feed on the feed paths and for distances determined automatically in a computer controller or the like, whereby the feed direction of the individual cutting devices is fixed from the outset by the design of the crankshaft.
  • FIG. 5 Another example for practicing the preferred embodiment of the invention is shown in FIG. 5.
  • This example will find particular utility when the measured values of the unbalance are presented in two, fixed axes, 90 components.
  • two frames 11 and 12 are provided at right angles to one another.
  • the frames are oriented in accordance with the two orthogonal coordinates in terms of which the unbalance is defined.
  • the azimuth of the body as held in the clamp (the same as in FIGS. 1 and 2), is, of course, adjusted as to the orientation of the unbalance data so that the coordinate system inherent in the body as to representation of measured unbalance coincides in the compensation plane with the coordinate system as established by frames 11 and 12.
  • the frame 11 serves as guide rail for a sliding carriage 13, which carries the other frame 12 which, in turn, carries a sliding carriage 14; the latter carriage carries the milling tool 15.
  • Two stepping motors l6 and 17 are arranged on both guide rails, and they are controlled in such a way that the desired slot shape and depths are obtained.
  • an internal groove cutter with at least one radially inwardly directed cutting tooth operating on a machining circle ofa diameter not smaller than the diameter of the body;
  • second means for mounting the groove cutter in particular axis parallel relative to the axis of the body, and including third means for azimuthally as well as radially adjusting the operational axis of the cutter relative to the axis of the body and in axis parallel relationship thereto, prior to cutting; and
  • the second means including a stand; a frame journalled on the stand coaxially to the body; a slide carriage on the frame, the groove cutter being mounted on the slide carriage.
  • the groove cutter being a milling cutter with plural radially inwardly directed teeth defining a machining circle of a diameter larger than the diameter of the body.
  • the stand being displaceably mounted on a base, for axially adjusting the stand with frame and cutter relative to the body.
  • the second means including further means for axially adjusting the cutter in relation to the body.
  • the third means including a motor for adjusting the distance of the axes from each other, and control means for operating the motor nonlinearly in dependence upon measured unbalance.
  • the second means including a stand, a first carriage slidably mounted in the stand for sliding in a first direction transverse to the axis of the body, a second carriage slidably mounted in the first carriage for sliding transverse to both, the axis of the body and the direction of sliding of the first carriage; the groove cutter being mounted on the second carriage.
  • Method for compensation unbalance in a rotary body by selectively cutting the body in selected locations in accordance with a previously determined measurement on unbalance, comprising:
  • Method as in claim 8 the positioning including adjusting the milling cutter axially with respect to the axis of the body during the cutting operation.
  • Method as in claim 8 the positioning including adjusting the cutter azimuthally as to its axis with respect to the axis of the body during the cutting operation.
  • the azimuthal adjusting of the cutter including adjusting the cutter radially along two different, transversely oriented radii with respect to the axis of the body.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)
  • Milling Processes (AREA)
US00368217A 1972-06-26 1973-06-08 Compensation of unbalance in rotary bodies Expired - Lifetime US3817149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2231226A DE2231226C2 (de) 1972-06-26 1972-06-26 Vorrichtung zum zerspanenden Unwuchtausgleich an Rotationskörpern

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US3817149A true US3817149A (en) 1974-06-18

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US (1) US3817149A (US06262066-20010717-C00424.png)
JP (1) JPS4951678A (US06262066-20010717-C00424.png)
DE (1) DE2231226C2 (US06262066-20010717-C00424.png)
FR (1) FR2191113B1 (US06262066-20010717-C00424.png)
GB (1) GB1429946A (US06262066-20010717-C00424.png)
IT (1) IT989287B (US06262066-20010717-C00424.png)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467848A (en) * 1981-07-18 1984-08-28 Maschinenfabrik Esterer Ag Machine for cutting down logs to a desired diameter
US4620463A (en) * 1985-07-29 1986-11-04 Compagnie Europeenne Du Zirconium Cezus Process for machining tubular parts and apparatus for carrying out the process
US4774746A (en) * 1986-04-04 1988-10-04 GFM Gesellschaft fur Fertigungstechnik und Masachinenbau Gesellschaft m.b.H. End-forming machine
US4820092A (en) * 1987-11-04 1989-04-11 American Hofmann Corporation Touch sensing method and apparatus
EP0335362A1 (de) * 1988-03-30 1989-10-04 Dürr-Dental GmbH & Co. KG Kompressor
US5074078A (en) * 1988-01-30 1991-12-24 Fritz Studer Ag Device for circular and/or profile grinding
US5238337A (en) * 1990-12-14 1993-08-24 Maschinenfabrik Ravensburg Ag Method of machining round material or the like by the whirling process
US5483855A (en) * 1993-06-14 1996-01-16 Dayton Walther Corporation Method for final balancing a brake drum
US6241590B1 (en) * 1997-07-04 2001-06-05 Lidkoping Machine Tools Ab External abrasive machine
US6322423B1 (en) 1997-07-04 2001-11-27 Lidkoping Machine Tools Ab Internal abrasive machine
US6321886B2 (en) 1993-06-14 2001-11-27 Meritor Heavy Vehicle Technology, Llc Final balanced brake drum having integral squealer band and method for producing same
EP1203938A1 (de) * 2000-11-03 2002-05-08 Hüller Hille GmbH Verfahren zur Beseitigung einer Unwucht eines rotierenden Werkstückes
US6571460B1 (en) * 2000-07-31 2003-06-03 Western Digital Technologies, Inc. Method and apparatus for balancing a rotary actuator by modifying weight distribution characteristics of the rotary actuator for locating an installed head stack assembly portion center-of-gravity along a pivot axis
US20100080705A1 (en) * 2008-09-30 2010-04-01 Christian Pronovost Rotor disc and method of balancing
CN102756155A (zh) * 2012-07-16 2012-10-31 广西工学院 工件不旋转数控外圆加工设备
CN108526562A (zh) * 2018-04-22 2018-09-14 荀为君 一种专用于环形工件内表面的铣床机构
CN114683008A (zh) * 2022-04-24 2022-07-01 成都飞机工业（集团）有限责任公司 一种高精度同轴耳片锥孔的加工方法
WO2023035094A1 (zh) * 2021-09-07 2023-03-16 富准精密模具(嘉善)有限公司 数控刀柄、回转体动平衡检测校正装置及方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232542A1 (de) * 1982-09-01 1984-03-01 Gebr. Hofmann Gmbh & Co Kg Maschinenfabrik, 6100 Darmstadt Verfahren und schaltungsanordnung zur steuerung des unwuchtausgleichsvorgangs an rotationskoerpern
DE4229521B4 (de) * 1992-09-07 2004-10-21 Schenck Rotec Gmbh Verfahren zum Unwuchtausgleich eines Rotors
DE102007014763A1 (de) * 2007-03-28 2008-10-02 Robert Bosch Gmbh Verfahren zum Auswuchten eines Rotors einer elektrischen Maschine
DE102009006010A1 (de) * 2009-01-23 2010-07-29 Kennametal Inc. Einrichtung zum Befestigen eines ringförmigen Fräswerkzeugträgers
CN111595517B (zh) * 2020-06-03 2022-03-25 哈尔滨工业大学 一种金刚石微径铣刀动平衡测试与修正系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1424755A (en) * 1921-02-02 1922-08-08 Niles Bement Pond Co Axle-milling machine
US2893292A (en) * 1957-12-26 1959-07-07 Joseph W Naperola Device for removing the excess welding bead from the exterior surface of welded seamtubing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130075A (en) * 1960-05-18 1964-04-21 Everett P Larsh Balancing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1424755A (en) * 1921-02-02 1922-08-08 Niles Bement Pond Co Axle-milling machine
US2893292A (en) * 1957-12-26 1959-07-07 Joseph W Naperola Device for removing the excess welding bead from the exterior surface of welded seamtubing

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467848A (en) * 1981-07-18 1984-08-28 Maschinenfabrik Esterer Ag Machine for cutting down logs to a desired diameter
US4620463A (en) * 1985-07-29 1986-11-04 Compagnie Europeenne Du Zirconium Cezus Process for machining tubular parts and apparatus for carrying out the process
EP0211782A2 (fr) * 1985-07-29 1987-02-25 CEZUS Compagnie Européenne du Zirconium Procédé d'usinage de pièces tubulaires et dispositif pour la mise en oeuvre du procédé
EP0211782A3 (en) * 1985-07-29 1988-09-07 Cezus Compagnie Europeenne Du Zirconium Method of turning tubular work pieces and apparatus employing the method
US4774746A (en) * 1986-04-04 1988-10-04 GFM Gesellschaft fur Fertigungstechnik und Masachinenbau Gesellschaft m.b.H. End-forming machine
US4820092A (en) * 1987-11-04 1989-04-11 American Hofmann Corporation Touch sensing method and apparatus
US5074078A (en) * 1988-01-30 1991-12-24 Fritz Studer Ag Device for circular and/or profile grinding
EP0335362A1 (de) * 1988-03-30 1989-10-04 Dürr-Dental GmbH & Co. KG Kompressor
US5238337A (en) * 1990-12-14 1993-08-24 Maschinenfabrik Ravensburg Ag Method of machining round material or the like by the whirling process
US6321886B2 (en) 1993-06-14 2001-11-27 Meritor Heavy Vehicle Technology, Llc Final balanced brake drum having integral squealer band and method for producing same
US5483855A (en) * 1993-06-14 1996-01-16 Dayton Walther Corporation Method for final balancing a brake drum
US6241590B1 (en) * 1997-07-04 2001-06-05 Lidkoping Machine Tools Ab External abrasive machine
US6322423B1 (en) 1997-07-04 2001-11-27 Lidkoping Machine Tools Ab Internal abrasive machine
US6571460B1 (en) * 2000-07-31 2003-06-03 Western Digital Technologies, Inc. Method and apparatus for balancing a rotary actuator by modifying weight distribution characteristics of the rotary actuator for locating an installed head stack assembly portion center-of-gravity along a pivot axis
EP1203938A1 (de) * 2000-11-03 2002-05-08 Hüller Hille GmbH Verfahren zur Beseitigung einer Unwucht eines rotierenden Werkstückes
US20100080705A1 (en) * 2008-09-30 2010-04-01 Christian Pronovost Rotor disc and method of balancing
US8342804B2 (en) 2008-09-30 2013-01-01 Pratt & Whitney Canada Corp. Rotor disc and method of balancing
US9127556B2 (en) 2008-09-30 2015-09-08 Pratt & Whitney Canada Corp. Rotor disc and method of balancing
CN102756155A (zh) * 2012-07-16 2012-10-31 广西工学院 工件不旋转数控外圆加工设备
CN102756155B (zh) * 2012-07-16 2014-04-30 广西工学院 工件不旋转数控外圆加工设备
CN108526562A (zh) * 2018-04-22 2018-09-14 荀为君 一种专用于环形工件内表面的铣床机构
WO2023035094A1 (zh) * 2021-09-07 2023-03-16 富准精密模具(嘉善)有限公司 数控刀柄、回转体动平衡检测校正装置及方法
CN114683008A (zh) * 2022-04-24 2022-07-01 成都飞机工业（集团）有限责任公司 一种高精度同轴耳片锥孔的加工方法

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FR2191113A1 (US06262066-20010717-C00424.png) 1974-02-01
GB1429946A (en) 1976-03-31
FR2191113B1 (US06262066-20010717-C00424.png) 1975-04-04
DE2231226B1 (US06262066-20010717-C00424.png) 1973-06-28
JPS4951678A (US06262066-20010717-C00424.png) 1974-05-20
IT989287B (it) 1975-05-20
DE2231226C2 (de) 1978-11-02

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