EP0045433B1 - Machine à meuler ou à polir comprenant une broche porte-outil entraînée d'un mouvement axial oscillant et d'un mouvement rotatif - Google Patents

Machine à meuler ou à polir comprenant une broche porte-outil entraînée d'un mouvement axial oscillant et d'un mouvement rotatif Download PDF

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Publication number
EP0045433B1
EP0045433B1 EP81105717A EP81105717A EP0045433B1 EP 0045433 B1 EP0045433 B1 EP 0045433B1 EP 81105717 A EP81105717 A EP 81105717A EP 81105717 A EP81105717 A EP 81105717A EP 0045433 B1 EP0045433 B1 EP 0045433B1
Authority
EP
European Patent Office
Prior art keywords
spindle
polishing
disc
grinding machine
drive shaft
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
Application number
EP81105717A
Other languages
German (de)
English (en)
Other versions
EP0045433A1 (fr
Inventor
Franz Amann
Peter Ing. Grad. Listl
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.)
Maschinenfabrik Reinhausen GmbH
Original Assignee
Maschinenfabrik Reinhausen GmbH
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 Maschinenfabrik Reinhausen GmbH filed Critical Maschinenfabrik Reinhausen GmbH
Priority to AT81105717T priority Critical patent/ATE7276T1/de
Publication of EP0045433A1 publication Critical patent/EP0045433A1/fr
Application granted granted Critical
Publication of EP0045433B1 publication Critical patent/EP0045433B1/fr
Expired legal-status Critical Current

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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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/16—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces performing a reciprocating movement, e.g. during which the sense of rotation of the working-spindle is reversed
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18024—Rotary to reciprocating and rotary

Definitions

  • the invention relates to a polishing or grinding machine according to the preamble of claim 1. Such a device is also described in DE-A1-2818667.
  • a problem with these polishing or grinding machines is that the axial reciprocation of the spindle carrying the polishing tool generates vibrations which can be transmitted to other machine parts and to the housing of the machine.
  • the advantage achieved by the invention is that the vibrations remain essentially limited to the spindle and the mass balancing body provided according to the invention and thus cannot be transferred to the other machine parts.
  • the mass of the rotating body acting as a compensating body as large as possible as the mass of the spindle with a polishing or grinding tool attached to it.
  • the angle of inclination of the orbit on which the bearing causing the oscillation of the spindle runs can then be chosen to be just as large as the angle of inclination of the orbit on which the bearing causing the counter-oscillation on the compensating body runs. If there is a deviation in the mass of the spindle with the tool and compensating body due to the use of different polishing or grinding tools, this difference can be compensated for by differently set inclination angles of the two orbits. The inclination angles of the two orbits are then expediently adjustable for this purpose.
  • a drive shaft 1 is provided with a driver 2 which engages in a form-fitting manner in a recess 3 of a spindle 4.
  • the spindle 4 which carries the polishing tool (not shown) at its lower end, has a cantilevered bearing 5 which rotates with the spindle 4 as soon as the drive shaft 1 is rotated.
  • the cantilevered bearing 5 is guided on a path which is inclined with respect to the plane 7 perpendicular to the axis 6 with the angle a, so that the spindle 4 forcibly performs an additional up and down movement during rotation, as indicated by the double arrow is.
  • the spindle is mounted in a ball guide 10 of the housing 19 (not shown in more detail).
  • the inclination of the orbit running on the disk 8 for the cantilevered bearing 5 can be adjusted so that the oscillation stroke of the spindle 4 can be varied.
  • a spring 9 causes the spindle 4 with its cantilevered bearing 5 to always be pressed against the orbit of the disk 8.
  • a rotary body 12 is mounted on the drive shaft 1 by means of an additional ball guide 11, which serves as a mass balance for the spindle 4 and the tool (not shown) located thereon.
  • This rotary body 12 is positively coupled to the drive shaft 1 via the driver 13, and it in turn engages with a driver 14 in a recess 15 of the spindle 4.
  • the spindle 4 in turn has a cantilevered bearing 5 which rotates together with the spindle 4 when it rotates and is guided on an inclined path with the angle of inclination ⁇ , which in turn runs on a disk 8, as a result of which the axial oscillating movement of the spindle 4 according to the double arrow is produced.
  • the rotating body 12 is also provided with a cantilevered bearing 16 which rotates together with the rotating body 12 when the drive shaft and spindle rotate.
  • a further disk 17 is provided as the guideway for this protruding bearing 16, which is arranged such that the guideway running thereon is inclined by the same inclination angle a as in the guideway assigned to the spindle 4, but both inclination angles are opposite.
  • a compression spring 18 which presses both the spindle 4 with its cantilevered bearing 5 and the rotary body 12 with its cantilevered bearing 16 against the respective guideways of the disks 8 and 17, respectively.
  • a drive shaft 21 is in the housing head in a manner not shown in detail Polishing grinder stored. Also in the housing head 22, a spindle 24 is mounted by means of the bearings 23, not shown in detail, which carries the polishing tool 25 at its lower end. The spindle 24 is also mounted on the end of the drive shaft 21 coaxially with the latter by means of a bearing sleeve 26.
  • the bearing of the bearing sleeve 26 is designed as a ball guide 27 so that the spindle 24 can perform the axial oscillation movement to be described later.
  • the coupling between the drive shaft 21 and the spindle 24 is as follows: On the drive shaft 21 there is a driver 28 with a recess 29.
  • a pin 30 engages in this recess 29 and is fixedly connected to the rotary body 31.
  • This rotary body 31 has a recess 32 into which a further pin 33 engages, which in turn is firmly connected to the bearing sleeve 26 of the spindle 24 already mentioned. If the drive shaft 21 is set in rotation by the drive (not shown in detail), this rotation is transmitted by the driver 28 and the pin 30 to the rotating body 31 and further by the pin 33 to the bearing sleeve 26 and thus to the spindle 24.
  • the axial oscillation stroke required on the spindle 24 is generated as follows: on the bearing sleeve 26 there is a protruding bearing 34 which rotates on a track of a disk 36 when the bearing sleeve rotates. Depending on the desired oscillation stroke, this disk 36 is inclined relative to the plane 38 perpendicular to the central axis 37, for which purpose the disk can be pivoted about the bearing pin 39. It is readily apparent that the inclination of the disk 36 and the simultaneous pushing of the bearing 34 against the disk 36 of the spindle 24 force an oscillating stroke. The bearing 34 or spindle 24 is pressed against the disk 36 by means of the compression spring 41.
  • a likewise protruding bearing 42 is provided in the rotating body 31, which rotates together with the rotating body 31 when the drive shaft 21 and spindle 24 rotate.
  • it is pressed exactly like the cantilevered bearing 34 against another inclined disc 43, which is accomplished by the compression spring 41 already mentioned.
  • This disc 43 can also be pivoted about bearing pin 40, so that the disc 43 can be tilted as desired. This also results in an oscillating axial reciprocating movement for the rotating body 31 when rotating.
  • the rotating body 31 is therefore, just like the bearing sleeve 26, mounted on the drive shaft 31 by means of a further ball guide 49.
  • the inclination of the two disks 36 and 43 which determine the orbits of the protruding bearings 34 and 42 is carried out by means of a common adjusting device 44.
  • This consists of an adjusting screw 45 with a conical end, which presses against two adjusting pins 46, 47 which can be pushed up and down.
  • These adjusting pins 46 and 47 rest against the two disks 36 and 43, so that by pushing out the adjusting pins 46, 47 by means of the conical end of the adjusting screw 45, the two disks 36 and 43 spread evenly on both sides.
  • the screw 50 which serves as an abutment for the upper adjusting pin 46, can at the same time serve to set the inclination of the upper disc 43 differently from the inclination of the lower disc 34.
  • the spring 48 which is also arranged between the two disks 36 and 43, serves to stabilize the position of the two disks. It is readily apparent that the arrangement described above always causes the spindle 24 to swing against one another with the polishing tool 25 and the rotating body 31. Because the mass of the rotary body 31 corresponds approximately to the mass of the spindle 24 and the polishing tool 25, it is thus possible to limit the vibrations occurring in the system to the spindle and the rotary body and to keep them largely away from the housing head 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (4)

1. Machine à polir ou à meuler dans laquelle une broche (4, 24) portant l'outil de polissage ou de meulage est montée dans un palier à glissement en étant susceptible d'être déplacé axialement d'un mouvement de va-et-vient et est couplée par interpénétration de forme, au moyen d'un organe d'entraînement et d'un évidement, avec un arbre d'entraînement (1, 21) disposé coaxialement, cette broche (4) portant un palier (5) extérieur tournant avec elle et qui est guidé sur une voie s'étendant autour de la broche (4) et qui est inclinée par rapport au plan perpendiculaire à l'axe (6) de la broche, machine caractérisée en ce qu'elle comporte un corps de révolution (12, 31) monté sur l'arbre d'entraînement (1, 21) au moyen d'un autre palier à glissement (11, 49) en étant également susceptible de se déplacer axialement d'un mouvement de va-et-vient et couplé par interpénétration de forme avec cet arbre d'entraînement (1, 21), ce corps de révolution étant de son côté couplé par interpénétration de forne avec la broche (4, 24) au moyen d'un organe d'entraînement (14, 33) venant en prise dans un évidement (15) de cette broche, et ce corps de révolution portant également un palier extérieur (16, 42) tournant avec lui et qui est guidé sur une autre voie (17, 43) s'étendant également autour de lui, cette voie étant inclinée à l'opposé de la voie (8, 36) associée à la broche, tandis qu'entre le corps de révolution (12, 31) et la broche (4, 24) est disposé un ressort (18, 41) agissant en direction axiale.
2. Machine à polir ou à meuler selon la revendication 1, caractérisée en ce que l'inclinaison (a) des voies déterminant le mouvement de va-et-vient du corps de révolution (12, 31) et de la broche (4, 24) est susceptible d'être réglée.
3. Machine à polir ou à meuler selon la revendication 1 ou 2, caractérisée en ce que la masse du corps de révolution (12, 31) est à peu près de même importance que la masse de la broche (4, 24) et de l'outil (25) de meulage ou de polissage.
4. Machine à polir ou à meuler selon la revendication 3, caractérisée en ce que la valeur absolue de l'inclinaison (a) des deux voies est la même.
EP81105717A 1980-08-02 1981-07-21 Machine à meuler ou à polir comprenant une broche porte-outil entraînée d'un mouvement axial oscillant et d'un mouvement rotatif Expired EP0045433B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105717T ATE7276T1 (de) 1980-08-02 1981-07-21 Polier- oder schleifmaschine mit sowohl axial hin und her bewegbarer wie auch drehbarer das polierwerkzeug tragender spindel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803029417 DE3029417A1 (de) 1980-08-02 1980-08-02 Polier- oder schleifmaschine mit sowohl axial hin und her bewegbarer wie auch drehbarer aus polierwerkzeug tragender spindel
DE3029417 1981-08-02

Publications (2)

Publication Number Publication Date
EP0045433A1 EP0045433A1 (fr) 1982-02-10
EP0045433B1 true EP0045433B1 (fr) 1984-05-02

Family

ID=6108784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105717A Expired EP0045433B1 (fr) 1980-08-02 1981-07-21 Machine à meuler ou à polir comprenant une broche porte-outil entraînée d'un mouvement axial oscillant et d'un mouvement rotatif

Country Status (5)

Country Link
US (1) US4398374A (fr)
EP (1) EP0045433B1 (fr)
JP (1) JPS5761457A (fr)
AT (1) ATE7276T1 (fr)
DE (1) DE3029417A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923156A1 (de) * 1989-07-13 1991-01-24 Diskus Werke Frankfurt Main Ag Pinolenzustellung fuer werkzeugmaschinen, insbesondere flachschleifmaschinen
US5365628A (en) * 1993-12-15 1994-11-22 Kenneth Evensen Roller assembly for rotary buffer
US6569002B2 (en) 1999-12-10 2003-05-27 Porter-Cable/Delta Hand-held oscillating spindle sander
JP4725206B2 (ja) * 2005-06-15 2011-07-13 ブラザー工業株式会社 回転体の駆動力伝達機構
CN110712122A (zh) * 2018-07-13 2020-01-21 广州中国科学院先进技术研究所 一种用于打磨时换刀的刀库

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818667A1 (de) * 1977-07-26 1979-02-08 Fiz Tech I Akad Nauk Werkzeugmaschine zum raeumlichen polieren mit magnetschleifpulver im magnetfeld von werkstuecken, die die form eines rotationskoerpers besitzen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR623715A (fr) * 1926-10-27 1927-06-29 Dispositif permettant d'imprimer à un organe rotatif un mouvement axial de translation non synchronisé avec le mouvement de rotation
US2138862A (en) * 1936-12-22 1938-12-06 Walter E Johnston Utility tool
US2578559A (en) * 1946-12-06 1951-12-11 Koragren Theodore Yngve Motion converting mechanism
US2542408A (en) * 1947-08-30 1951-02-20 New Britain Machine Co Drill speeder and the like
FR405641A (fr) * 1950-01-07 1910-01-08 Karl Wilhelm Rockenhauser Perfectionnements dans les plateaux de tour
CH427442A (de) * 1965-12-02 1966-12-31 Bruderer Ag Vorrichtung für den Massenausgleich bei durch Kurbeltrieb angetriebenen Maschinen
US3538646A (en) * 1969-03-26 1970-11-10 Caterpillar Tractor Co Reciprocator for grinding wheel spindles
US3757638A (en) * 1972-04-12 1973-09-11 J Martin Five-axis shaper
CS172656B1 (fr) * 1974-06-24 1977-01-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818667A1 (de) * 1977-07-26 1979-02-08 Fiz Tech I Akad Nauk Werkzeugmaschine zum raeumlichen polieren mit magnetschleifpulver im magnetfeld von werkstuecken, die die form eines rotationskoerpers besitzen

Also Published As

Publication number Publication date
EP0045433A1 (fr) 1982-02-10
DE3029417A1 (de) 1982-03-11
US4398374A (en) 1983-08-16
ATE7276T1 (de) 1984-05-15
JPS5761457A (en) 1982-04-13

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