EP0035301A1 - Verfahren zum Schleifen von zwei koaxialen konischen Oberflächen, Vorrichtung zur Durchführung des Verfahrens, Verwendung dieser Vorrichtung und so erhaltenes geschliffenes Werkstück - Google Patents

Verfahren zum Schleifen von zwei koaxialen konischen Oberflächen, Vorrichtung zur Durchführung des Verfahrens, Verwendung dieser Vorrichtung und so erhaltenes geschliffenes Werkstück Download PDF

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Publication number
EP0035301A1
EP0035301A1 EP81200198A EP81200198A EP0035301A1 EP 0035301 A1 EP0035301 A1 EP 0035301A1 EP 81200198 A EP81200198 A EP 81200198A EP 81200198 A EP81200198 A EP 81200198A EP 0035301 A1 EP0035301 A1 EP 0035301A1
Authority
EP
European Patent Office
Prior art keywords
grinding
angle
axis
primary
grinding 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
EP81200198A
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English (en)
French (fr)
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EP0035301B1 (de
Inventor
Alfred Schlaefli
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.)
Voumard Machines Co SA
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Voumard Machines Co SA
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Filing date
Publication date
Application filed by Voumard Machines Co SA filed Critical Voumard Machines Co SA
Publication of EP0035301A1 publication Critical patent/EP0035301A1/de
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    • 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
    • B24B5/14—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 conical surfaces, e.g. of centres

Definitions

  • the present invention relates to a method for rectifying two frustoconical surfaces, one interior and the other exterior concurrent at the end of a part to be rectified where they form a circular junction edge.
  • the invention also relates to a grinding wheel holder device for a grinding machine, for the implementation of the process in question, intended for the grinding of two frustoconical surfaces, one inside and the other outside, concurrent at the end of a part. to rectify where they form a circular junction edge.
  • the invention also relates to a part with two concurrent rectified frustoconical surfaces resulting from the method, it also relates to the use of the device and the application of the method for obtaining such a part.
  • the object of the present invention is in particular to provide a method and a device making it possible to obtain the abovementioned performance, which the prior art did not provide.
  • fig. 5 is a schematic view similar to FIG. 4 showing the operation by which the two grinding wheels rectify the frustoconical surfaces in question, when using the device according to FIG. 3.
  • Fig. l shows a grinding wheel holder device for a grinding machine intended to be placed in front of the workpiece spindle or the workpiece chuck of this grinding machine.
  • a workpiece 1 not shown in FIG. 1, but visible in fig. 2.
  • Fig. 1 only shows the grinding wheel support arrangement which in fact constitutes an accessory for a grinding machine, placed in front of it.
  • This device comprises a first table 2 which is mounted on a part of the frame, or similar support (not shown), of the grinding machine.
  • This first table 2 carries a second table 3, which can be moved on the table 2 in an oblique direction called "primary angular direction" and generally the direction ⁇ , in the embodiment shown in FIG. 1, corresponds to the angle ⁇ 1 .
  • This angle ⁇ is preferably adjustable; in a device intended for the permanent production of identical parts in very large series, this angle ⁇ could also be adjusted once for all, instead of being adjustable.
  • the second table 3 carries a first grinding wheel spindle 4 fixed on this table so that the axis of rotation of the spindle is approximately parallel to the axis 00 of the grinding machine.
  • This parallelism is however not a condition of correct operation and, as a variant, the axis of the grinding wheel headstock 4 could form an angle with the direction of the axis 00.
  • a grinding wheel 5 with a conical active surface is fixed to the shaft of the spindle 4. This grinding wheel 5 , of small dimensions, will be driven in rotation by the spindle 4 at a very high angular speed.
  • the second table 3 carries a second grinding spindle 6, the axis of rotation of which is preferably parallel to that of the other grinding spindle.
  • This second grinding wheel spindle 6 is integral with the second table 3 in the direction perpendicular to the axis 00 of the workpiece, it can on the other hand slide with respect to the table 3 in the direction parallel to the axis 00.
  • a grinding wheel with a frustoconical active surface 7, notably larger than the grinding wheel with a conical surface 5, is mounted on 1 shaft of the second grinding wheel spindle 6.
  • the grinding wheel 7 has a relatively large diameter because its active surface must come close to that of the grinding wheel 5, and the grinding wheel 7 must therefore have a radius close to the distance between the axes of the two spindles.
  • a directional guide device 8 is fixed on the first table 2, and it comprises a slide 9 which can, with the guide device 8, be positioned in different orientations with respect to table 2.
  • the two grinding wheels 5 and 7 therefore each move in an angular direction which is specific to them, it is therefore seen that their active conical or frustoconical part is erected in accordance with these two directions ⁇ 1 , ⁇ 1 .
  • the part to be ground 1 has at its front part two frustoconical surfaces to be ground, respectively 11 and 12, the first being an internal frustoconical surface and the second an external frustoconical surface.
  • the taper angle of the inner surface to be ground 11 is the angles ⁇ 1 while the taper angle of the frustoconical surface to be rectified outside 12 is the angia ⁇ 1 .
  • the generatrices of each of these active frustoconical surfaces of grinding wheels 5a and 7a move respectively on a line of direction primary l p and on a secondary direction line l s .
  • the angles of these primary p and secondary guidelines s with respect to the axis O of the workpiece correspond to the respectively primary and secondary angular directions in which the two grinding spindles 4 and 6 move (fig. 1) when the second table 3 is moved obliquely on the first table 2.
  • the desired relationships concerning the positions and the displacement lines of the generators of the active surfaces of grinding wheels 5a and 7a are ensured by an adequate positioning of two dressing tools, a first, 13, intended for dressing the grinding wheel 5 and a second, 14, intended for dressing the grinding wheel 7.
  • the active points, respectively 13a and 14a of the two dressing tools 13 and 14 must be located the first on the primary direction line l p and the second on the secondary direction line i s . Under these conditions, an oblique movement, in the primary angular direction ⁇ , of the second table 3 relative to the first table 2 ensures the dressing of the grinding wheels such that the generator of the latter will automatically occupy the position of grinding work wanted for this rectification.
  • ra is the radius (or half-diameter) of the circumference formed by the junction edge of the conical surfaces to be rectified and the angles ⁇ and 13 are those which we have just described.
  • the indices have been omitted, since this expression has a general value which does not only apply to the geometric constructive arrangement shown in fig. 2.
  • the two dressing tools 13 and 14 are fixed side by side in an oblique fashion, with their axes approximately perpendicular to the primary angular direction ⁇ 1 , the distance between the axes of these two tools. preferably being fixed, at the value "e”. It is also possible to establish, perpendicular to the axes of the dressing tools and therefore parallel to the primary angular direction ⁇ 1 , the distance "m” between the axis of the first dressing tool 13 and the place where the line of direction l p cuts axis 0 of the workpiece (and of the grinding machine).
  • FIGS. 3, 4 and 5 illustrate a variant of the device for a particular machining case which allows many simplifications.
  • the parts which are identical to parts of the embodiment of FIGS. 1 and 2 are represented by the same reference signs.
  • the second table 3 which can be displaced obliquely in said primary angular direction ( ⁇ 2 )
  • the first grinding wheel spindle 4 fixed on the table 3 and carrying a small conical grinding wheel 5.
  • the second grinding wheel spindle, 16 is also completely fixed on the second table 3. Furthermore, it carries a grinding wheel 17 with frustoconical active surface 17a which has the same conicity as the conical active surface 5a of the first grinding wheel.
  • This embodiment is notably more advantageous since it saves sliding means for the second grinding spindle and oblique guide means specific thereto.
  • the two direction lines are parallel and have a distance between them d 2 which also represents the distance by which the point 21a of the second dressing tool must advance in front of the direction line l ' p , that is to say -to say in front of the tip 13a of the first dressing tool 13.
  • the dressing tools have been shown in a more technological manner, these tools being mounted on a block of dressing tool holders 22 Adjusting members 23 and 24 make it possible to adjust, perpendicular to the direction line l ' p ', the position of the active tips 13a, 2la of the straightening tools 13, 21.
  • the grinding wheels are advantageously given, during the grinding operation, a flapping movement produced by an alternating movement of the table 3 in the oblique direction which is its direction of movement (namely the primary angular direction and secondary school).
  • the original design described here also includes, and even primarily, the rectification process by which two grinding wheels simultaneously proceed to the grinding of an internal frustoconical surface and of an external frustoconical surface in front of a workpiece to be rectified.
  • the method described even if it was implemented using other devices arranged in this case for this purpose, would nonetheless continue to be in accordance with the particular design proposed by the invention.
  • the tightening tools are often diamond cutters and not diamond-tipped tools. In this case, the entire active slice of the wheel must be on the appropriate direction line (l p or l s ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP81200198A 1980-02-27 1981-02-20 Verfahren zum Schleifen von zwei koaxialen konischen Oberflächen, Vorrichtung zur Durchführung des Verfahrens, Verwendung dieser Vorrichtung und so erhaltenes geschliffenes Werkstück Expired EP0035301B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH158080A CH636789A5 (fr) 1980-02-27 1980-02-27 Procede pour rectifier deux surfaces tronconiques concourantes, dispositif pour la mise en oeuvre de ce procede, piece rectifiee en resultant et application de ce procede.
CH1580/80 1980-02-27

Publications (2)

Publication Number Publication Date
EP0035301A1 true EP0035301A1 (de) 1981-09-09
EP0035301B1 EP0035301B1 (de) 1984-05-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200198A Expired EP0035301B1 (de) 1980-02-27 1981-02-20 Verfahren zum Schleifen von zwei koaxialen konischen Oberflächen, Vorrichtung zur Durchführung des Verfahrens, Verwendung dieser Vorrichtung und so erhaltenes geschliffenes Werkstück

Country Status (4)

Country Link
US (1) US4386483A (de)
EP (1) EP0035301B1 (de)
CH (1) CH636789A5 (de)
DE (1) DE3163566D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302569A (zh) * 2013-07-26 2013-09-18 沈阳黎明航空发动机(集团)有限责任公司 一种摆动的磨削加工方法

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US5538460A (en) * 1992-01-16 1996-07-23 System Seiko Co., Ltd. Apparatus for grinding hard disk substrates
US6261161B1 (en) 1999-01-06 2001-07-17 Premark Feg L.L.C. Sharpener assembly for a food slicer and related method
US7207498B1 (en) 2000-01-26 2007-04-24 Dl Technology, Llc Fluid dispense tips
US6511301B1 (en) 1999-11-08 2003-01-28 Jeffrey Fugere Fluid pump and cartridge
US6957783B1 (en) 1999-01-26 2005-10-25 Dl Technology Llc Dispense tip with vented outlets
US6547167B1 (en) * 1999-01-26 2003-04-15 Jeffrey Fugere Fluid dispense tips
US6755570B1 (en) 1999-06-11 2004-06-29 Seagate Technology Llc Single piece hub with integral upper and lower female cones and method for making the same
JP4144725B2 (ja) * 1999-09-30 2008-09-03 独立行政法人理化学研究所 ガラス基板のチャンファリング方法及び装置
US6892959B1 (en) 2000-01-26 2005-05-17 Dl Technology Llc System and method for control of fluid dispense pump
US6981664B1 (en) 2000-01-26 2006-01-03 Dl Technology Llc Fluid dispense tips
US6983867B1 (en) 2002-04-29 2006-01-10 Dl Technology Llc Fluid dispense pump with drip prevention mechanism and method for controlling same
US20070044626A1 (en) * 2005-08-26 2007-03-01 Bondarowicz Frank A Overmolded food product table support arm for a food slicer
US20070044621A1 (en) * 2005-08-26 2007-03-01 Rote Scott J Top mounted operator interface for a food slicer
US7637191B2 (en) * 2005-08-26 2009-12-29 Premark Feg L.L.C. Product table lock for a food slicer
US7549363B2 (en) * 2005-08-26 2009-06-23 Premark Feg L.L.C. Product table for a food slicer with hollow peripheral reinforcements
US20070044628A1 (en) * 2005-08-26 2007-03-01 Rote Scott J Rear pivot pusher for a food slicer with clearance position
US20070044612A1 (en) * 2005-08-26 2007-03-01 Somal Hardev S Gage plate adjustment mechanism for a food slicer
US20070044627A1 (en) * 2005-08-26 2007-03-01 Clem Todd L Speed and stroke control method and apparatus for a product table of a food slicer
US7832317B2 (en) * 2005-08-26 2010-11-16 Premark Feg L.L.C. Gage plate alignment mechanism and method for a food slicer
US8043142B2 (en) * 2005-08-26 2011-10-25 Premark Feg L.L.C. Sharpener carried by the product table of a food slicer
US7464632B2 (en) * 2006-02-07 2008-12-16 Premark Feg L.L.C. Product fence for a food slicer
US8707559B1 (en) 2007-02-20 2014-04-29 Dl Technology, Llc Material dispense tips and methods for manufacturing the same
US20100064872A1 (en) * 2008-09-12 2010-03-18 Anatoly Gosis Product fence for food slicer
US20100089254A1 (en) * 2008-10-14 2010-04-15 Anatoly Gosis Food slicer and associated food product pusher
US8864055B2 (en) 2009-05-01 2014-10-21 Dl Technology, Llc Material dispense tips and methods for forming the same
US9725225B1 (en) 2012-02-24 2017-08-08 Dl Technology, Llc Micro-volume dispense pump systems and methods
US11746656B1 (en) 2019-05-13 2023-09-05 DL Technology, LLC. Micro-volume dispense pump systems and methods
RU2758791C1 (ru) * 2020-11-23 2021-11-01 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Устройство для шлифования тел вращения типа упорных центров

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Publication number Priority date Publication date Assignee Title
GB513474A (en) * 1938-03-29 1939-10-13 Harry Frederick Atkins Machine for accurately grinding conical surfaces

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302569A (zh) * 2013-07-26 2013-09-18 沈阳黎明航空发动机(集团)有限责任公司 一种摆动的磨削加工方法

Also Published As

Publication number Publication date
DE3163566D1 (en) 1984-06-20
EP0035301B1 (de) 1984-05-16
CH636789A5 (fr) 1983-06-30
US4386483A (en) 1983-06-07

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