EP0145965A2 - Rectifieuse cylindrique - Google Patents

Rectifieuse cylindrique Download PDF

Info

Publication number
EP0145965A2
EP0145965A2 EP84113797A EP84113797A EP0145965A2 EP 0145965 A2 EP0145965 A2 EP 0145965A2 EP 84113797 A EP84113797 A EP 84113797A EP 84113797 A EP84113797 A EP 84113797A EP 0145965 A2 EP0145965 A2 EP 0145965A2
Authority
EP
European Patent Office
Prior art keywords
grinding
workpiece
cylindrical
grinding wheel
wheel
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.)
Granted
Application number
EP84113797A
Other languages
German (de)
English (en)
Other versions
EP0145965A3 (en
EP0145965B1 (fr
Inventor
Hermann Dipl.-Ing. Keefer
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.)
Georg Karstens Fabrik fur Messgerate und Spezialmaschinen GmbH
Original Assignee
Georg Karstens Fabrik fur Messgerate und Spezialmaschinen 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 Georg Karstens Fabrik fur Messgerate und Spezialmaschinen GmbH filed Critical Georg Karstens Fabrik fur Messgerate und Spezialmaschinen GmbH
Publication of EP0145965A2 publication Critical patent/EP0145965A2/fr
Publication of EP0145965A3 publication Critical patent/EP0145965A3/de
Application granted granted Critical
Publication of EP0145965B1 publication Critical patent/EP0145965B1/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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/12—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces both externally and internally with several grinding wheels

Definitions

  • the invention relates to a cylindrical grinding machine with an outer grinding wheel arranged at one end of a grinding spindle and an inner grinding wheel provided at one end of a further grinding spindle, the central axes of the two grinding spindles being arranged at a distance from one another and at least for approaching a workpiece held by a workpiece headstock with respect to the workpiece are variable in distance, in that the two grinding spindles are supported on a grinding headstock movable relative to the workpiece and in which the further spindle carrying the inner grinding wheel is pivotably held on the grinding headstock parallel to its central axis.
  • the swiveling internal grinding device which is swiveled by hand or automatically into the working position for internal grinding, is built on the grinding headstock next to the grinding wheel arranged on the left. Due to the left arrangement of both grinding wheels, the Outer grinding wheel must be removed or covered, otherwise it will be soaked up by spray water during internal grinding and then become impermissibly unbalanced.
  • a cylindrical grinding machine in which the wheel head is turned to the inner loops 180 0 and turned to face grinding by 90 °.
  • the external grinding wheel does not have to be removed for internal grinding and surface grinding.
  • the present invention has for its object to improve a cylindrical grinding machine of the type mentioned in such a way that with a simple and rapid change of external grinding and internal grinding, the two grinding wheels are not wetted by spray water and thus become unbalanced and in which at one Change of grinding types the grinding wheels after a positioning change does not have to be trained to correct position errors.
  • the invention provides that the central axes of the two grinding spindles run at an angle to one another in such a way that in the case of cylindrical external and / or internal grinding of the workpiece, the central axis of the further grinding spindle carrying the internal grinding wheel both in the swung-up rest position and is also directed parallel to the workpiece center axis in the lowered working position and the center axis of the grinding spindle carrying the outer grinding wheel is at an angle thereto, the end of the grinding spindle carrying the outer grinding wheel being directed towards the workpiece center axis.
  • the center axes of the grinding spindles prefferably be at an angle of approximately 30 ° to one another. There is then enough space between the grinding wheels for the grinding headstock and it is the internal grinding by the distance of the Grinding wheels ensure that the outer grinding wheel is not wetted by water spray.
  • the circular grinding wheel can advantageously have two grinding surfaces running at an angle of 90 ° to one another, one of the grinding surfaces at the grinding point parallel to the workpiece center axis and the other runs perpendicular to it.
  • the dressing of the grinding wheels can be made particularly efficient and with little effort in that the tailstock on its side facing the grinding headstock has at least one dresser freely accessible from two sides carries, through which the grinding surfaces of the grinding wheels can be dressed, the riding stock with the dresser and the grinding wheel to be dressed can be moved relative to one another either parallel or perpendicular to the workpiece center axis.
  • the internal grinding spindle can be arranged on the grinding headstock so that the grinding spindle with its spindle drive can be placed between the internal grinding wheel and the external grinding wheel in the swung-down working position.
  • a table 2 On a machine bed 1, a table 2 is slidably guided in one direction. On the table 2 is a workpiece headstock 3 with an interchangeably clamped workpiece 4, which can be automatically replaced after machining if necessary. If necessary, a tailstock 5 is also provided on table 2 if grinding is to be carried out between centers. Furthermore, a grinding headstock 6 is provided on the machine bed 1, which is slidably guided towards the table 2 to approach the workpiece 4.
  • the grinding headstock 6 carries two grinding spindles shown only with their central axes 7 and 8, one of which has an inner grinding wheel 9 and the other carries an outer grinding wheel 10.
  • the grinding spindle carrying the inner grinding wheel 9 is provided on a cantilever 11, by means of which it can be pivoted into a working position over the table 2 for grinding the workpiece 4 inside, as shown in FIG. 2 in the working position.
  • the boom 11 is in its rest position.
  • the central axis 7 of the grinding spindle of the arm 11 runs parallel to the table 2, while the central axis 8 of the outer grinding wheel 10 runs at an angle 12 of approximately 30 ° to the table displacement direction or to the central axis 7 of the inner grinding wheel 9.
  • the outer grinding wheel 10 is arranged on the table-side end projecting beyond the grinding headstock 6.
  • the outer grinding wheel 10 protrudes in the direction of the work headstock 3, so that in the case of external cylindrical grinding of a workpiece, as shown in FIG. 1, there is sufficient space between the workpiece headstock 3 and the grinding headstock 6.
  • the outer grinding wheel 9 To be cylindrical with the outer grinding wheel 9 To be able to grind surfaces and end faces, it is provided with two mutually perpendicular grinding surfaces 13 and 14, the grinding surface 13 at the point of contact on the workpiece 4 runs parallel to the workpiece center axis 15, which at the same time runs exactly parallel to the direction of displacement of the table 2 with cylindrical grinding .
  • the other grinding surface 14 runs perpendicularly to it, as can be easily seen from the illustrations.
  • the central axes 8 and 15 lie approximately in a horizontal plane, while the central axis 7 of the grinding spindle carrying the inner grinding wheel 9 lies approximately in this plane only in the working position shown in FIG. 2.
  • a special dressing device can be arranged on the table 2 for dressing the grinding wheels 9 and 10.
  • a dresser 16 can be arranged on it in order to save parts and time, specifically in the direction of the grinding headstock 6 protruding towards such that the grinding surface 13 can be dressed by moving the table 2 and the grinding surface 14 can be dressed by moving the grinding headstock 6 when the table 2 is positioned accordingly.
  • the arrangement of the internal grinding wheel 9 relative to the external grinding wheel 10 ensures that the latter is not wetted by water spray and thus becomes unbalanced over time.
  • a corresponding circuit of the drive motors or the common gear design ensures that either only the inner grinding wheel 9 or the outer grinding wheel 10 is driven.
  • conical external and internal grinding is also possible by correspondingly angled clamping of the workpiece 4, for example by swiveling the workpiece headstock 3 and / or moving the tailstock on the table 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP84113797A 1983-11-15 1984-11-15 Rectifieuse cylindrique Expired EP0145965B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3341244A DE3341244C2 (de) 1983-11-15 1983-11-15 Rundschleifmaschine
DE3341244 1983-11-15

Publications (3)

Publication Number Publication Date
EP0145965A2 true EP0145965A2 (fr) 1985-06-26
EP0145965A3 EP0145965A3 (en) 1986-10-08
EP0145965B1 EP0145965B1 (fr) 1989-02-01

Family

ID=6214345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113797A Expired EP0145965B1 (fr) 1983-11-15 1984-11-15 Rectifieuse cylindrique

Country Status (2)

Country Link
EP (1) EP0145965B1 (fr)
DE (2) DE3341244C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104571A1 (fr) * 2007-02-28 2008-09-04 Erwin Junker Maschinenfabrik Gmbh Procédé de rectification d'un composant de machine et rectifieuse pour la mise en oeuvre dudit procédé
CN110549175A (zh) * 2019-08-23 2019-12-10 重庆神箭汽车传动件有限责任公司 一种外圆锥面磨床

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9316724D0 (en) * 1993-08-12 1993-09-29 Black & Decker Inc Pivot bearing for a chop saw

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD84808A (fr) *
US2063659A (en) * 1935-05-31 1936-12-08 Cincinnati Grinders Inc Internal grinding fixture
DE703337C (de) * 1937-09-15 1941-03-06 Fritz Werner Akt Ges Schleifspindelstock fuer Universalrundschleifmaschinen
DE2333041A1 (de) * 1973-06-29 1975-01-23 Karstens Georg Messgeraete Universalschleifspindelstock
US4330961A (en) * 1980-05-19 1982-05-25 Litton Industrial Products, Inc. Swing type internal grinding fixture for cylindrical grinding machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008104571A1 (fr) * 2007-02-28 2008-09-04 Erwin Junker Maschinenfabrik Gmbh Procédé de rectification d'un composant de machine et rectifieuse pour la mise en oeuvre dudit procédé
US8360819B2 (en) 2007-02-28 2013-01-29 Erwin Junker Maschinenfabrik Gmbh Method for grinding a machine part, and grinding machine for carrying out said method
CN110549175A (zh) * 2019-08-23 2019-12-10 重庆神箭汽车传动件有限责任公司 一种外圆锥面磨床

Also Published As

Publication number Publication date
EP0145965A3 (en) 1986-10-08
DE3476526D1 (en) 1989-03-09
DE3341244A1 (de) 1985-05-30
DE3341244C2 (de) 1985-12-05
EP0145965B1 (fr) 1989-02-01

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