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EP0203358A1 - Rotor de meulage composé d'une broche et d'une flasque porte-meule - Google Patents

Rotor de meulage composé d'une broche et d'une flasque porte-meule Download PDF

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Publication number
EP0203358A1
EP0203358A1 EP86105528A EP86105528A EP0203358A1 EP 0203358 A1 EP0203358 A1 EP 0203358A1 EP 86105528 A EP86105528 A EP 86105528A EP 86105528 A EP86105528 A EP 86105528A EP 0203358 A1 EP0203358 A1 EP 0203358A1
Authority
EP
European Patent Office
Prior art keywords
grinding
spindle
wheel flange
grinding wheel
rotor
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.)
Withdrawn
Application number
EP86105528A
Other languages
German (de)
English (en)
Inventor
Erwin Junker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0203358A1 publication Critical patent/EP0203358A1/fr
Withdrawn legal-status Critical Current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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors

Definitions

  • the invention relates to a grinding rotor consisting of a spindle and grinding wheel flange and relates to an improvement of the grinding rotor by reducing its unbalance.
  • Grinding machines have a spindle which is rotatably mounted and driven in the frame and at the front end of which the grinding wheel flange is seated, to which the grinding wheel is detachably fastened by means of the flange cover.
  • the spindle has a hollow tool cone that is customary in machine tools for clamping, in which the tool cone located on the grinding wheel flange sits, which clamps the grinding wheel flange coaxially to the spindle axis and forms the grinding rotor together with it.
  • a special balancing device is often provided, which, however, sits relatively far in front of the grinding wheel due to structural requirements and therefore, even with an ideal setting, generates a tilting moment acting transversely to the grinding rotor axis, which in conjunction with a residual unbalance that cannot be reduced further can lead to vibrations of the grinding rotor, which can impair the dimensional accuracy and surface quality of the ground workpieces and shorten the service life of the grinding rotor and grinding wheel.
  • This disadvantage has a particular effect when grinding at high grinding rotor speeds, such as are necessary when grinding at speeds of 80 m / sec and more.
  • the invention has for its object to provide a grinding rotor with a significantly reduced imbalance, which ensures perfect concentricity and runout even at very high spindle speeds.
  • the object is achieved in a grinding rotor of the type mentioned at the outset in that the spindle and the grinding wheel flange are formed from one piece and are manufactured with one and the same workpiece clamping as a single workpiece.
  • the ideal concentricity is achieved for spindle and grinding wheel, so that the previously unavoidable coaxiality 'as imbalance caused by the installation completely dispensed with. Therefore, the grinding rotor according to the invention has a previously unattainable smooth running and axial runout.
  • the grinding rotor with a spindle and grinding wheel flange be forged from one piece.
  • the most perfect realization of the inventive idea is achieved by forging from a single piece, especially since the forging of the fibers in the material ensures a large dimensional and shape consistency of the workpiece even when it is heated up in operation.
  • the spindle and the grinding wheel flange are welded together and form one piece. It is thereby achieved that the invention can also be used if suitable forging machines are missing or forging would be too expensive.
  • the balancing device known per se is accommodated in an end-side central bore of the spindle and lies in the area of the planes of the grinding wheel and the flange cover. This ensures that the centrifugal forces still arising from the assembly-related imbalance of the grinding wheel and flange cover and the centrifugal forces emanating from the balancing device act practically in the same plane and therefore compensate one another without tilting moment.
  • the grinding rotor 1 is coupled in a known manner via the tool cone 8 and the threaded pin 9 to the (not shown) output shaft of the (likewise not shown) grinding machine, while the grinding spindle sleeve 4 is attached to the (not shown) grinding machine frame.
  • the spindle 2 and the grinding wheel flange 5 consist of a single forging, which undergoes the machining of the outer surfaces of both the spindle 2 and the grinding wheel flange 5 with a single workpiece clamping, which ensures the coaxiality of all the machining surfaces of the forging and thus also its extensive operation Freedom from imbalance, which guarantees perfect concentricity.
  • the one-piece construction of the grinding rotor 1 eliminates the need to attach the grinding wheel flange 5 to the front end of the spindle 2 by means of releasable fastening means. Therefore, in the construction according to the invention, the central region near the axis, both at the front end of the grinding spindle 2 and at the grinding wheel flange 5, is free for the installation of the known balancing device 10, which is located in the end bore 11 of the spindle 2, in such a way that the more or less eccentrically adjustable balancing masses of the balancing device 10 lie in the area of the planes of the grinding wheel 6 and the flange cover 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP86105528A 1985-04-29 1986-04-22 Rotor de meulage composé d'une broche et d'une flasque porte-meule Withdrawn EP0203358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3515443 1985-04-29
DE19853515443 DE3515443A1 (de) 1985-04-29 1985-04-29 Schleifrotor, bestehend aus spindel und schleifscheibenflansch

Publications (1)

Publication Number Publication Date
EP0203358A1 true EP0203358A1 (fr) 1986-12-03

Family

ID=6269412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105528A Withdrawn EP0203358A1 (fr) 1985-04-29 1986-04-22 Rotor de meulage composé d'une broche et d'une flasque porte-meule

Country Status (6)

Country Link
EP (1) EP0203358A1 (fr)
JP (1) JPS61252062A (fr)
KR (1) KR860008004A (fr)
CN (1) CN86102928A (fr)
DD (1) DD251310A5 (fr)
DE (1) DE3515443A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911769C1 (en) * 1988-08-19 1989-10-12 Wilhelm 8372 Zwiesel De Koenig Hydrostatic bearing for tool spindle - is fed with pressure medium which acts as coolant for grinding tool
AT392230B (de) * 1989-05-29 1991-02-25 Thoeress Josef Vorrichtung zum gleichzeitigen schleifschaerfen saemtlicher saegezaehne eines gattersaegeblattes
CN100534720C (zh) * 2008-05-07 2009-09-02 常熟市中恒数控设备制造有限公司 磨床主轴端头机构
CN111469013B (zh) * 2020-04-18 2021-05-11 嘉兴市卓越交通建设检测有限公司 一种不锈钢合金法兰制造加工机械

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951066C (de) * 1955-07-20 1956-10-18 Skf Kugellagerfabriken Gmbh Arbeitsspindel fuer Werkzeugmaschinen
DE2101113B2 (de) * 1971-01-12 1973-08-09 Gebr. Hofmann Kg Maschinenfabrik, 6100 Darmstadt Vorrichtung zum ausgleich der unwucht von rotoren
DE2225120B2 (de) * 1971-11-17 1974-12-12 Cincinnati Milacron Inc., Cincinnati, Ohio (V.St.A.) Auswuchtvorrichtung zum Ausgleich von rotierenden Maschinenteilen, insbesondere Schleifscheiben
US4213351A (en) * 1977-03-21 1980-07-22 Rowlinson James S Steering shaft and flange and method of making same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1026974B (it) * 1974-12-11 1978-10-20 Morton S P A Dispositivo per il montaggiondi una mola su uno stelo porta mola
DE7609914U1 (de) * 1976-03-31 1976-07-22 Bort, Otto, 7119 Ingelfingen-Criesbach Spannmutter fuer rotierende teile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951066C (de) * 1955-07-20 1956-10-18 Skf Kugellagerfabriken Gmbh Arbeitsspindel fuer Werkzeugmaschinen
DE2101113B2 (de) * 1971-01-12 1973-08-09 Gebr. Hofmann Kg Maschinenfabrik, 6100 Darmstadt Vorrichtung zum ausgleich der unwucht von rotoren
DE2225120B2 (de) * 1971-11-17 1974-12-12 Cincinnati Milacron Inc., Cincinnati, Ohio (V.St.A.) Auswuchtvorrichtung zum Ausgleich von rotierenden Maschinenteilen, insbesondere Schleifscheiben
US4213351A (en) * 1977-03-21 1980-07-22 Rowlinson James S Steering shaft and flange and method of making same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MACHINES AND TOOLING, Band 49, Nr. 12, Dezember 1978, Seiten 26-28, Melton Mowbray, GB; I.P. KARAIM "High-speed spindles for internal grinders" *
MACHINES AND TOOLING, Band 50, Nr. 10, Oktober 1979, Seiten 34, 35, Melton Mowbray, GB; A.A. MAZUR et al.: "Fabricated spindles for radial drilling machines" *

Also Published As

Publication number Publication date
DD251310A5 (de) 1987-11-11
CN86102928A (zh) 1987-11-11
DE3515443A1 (de) 1986-10-30
KR860008004A (ko) 1986-11-10
JPS61252062A (ja) 1986-11-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19871005

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