EP1080834A2 - Rectifieuse "sans centre" - Google Patents

Rectifieuse "sans centre" Download PDF

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Publication number
EP1080834A2
EP1080834A2 EP00117698A EP00117698A EP1080834A2 EP 1080834 A2 EP1080834 A2 EP 1080834A2 EP 00117698 A EP00117698 A EP 00117698A EP 00117698 A EP00117698 A EP 00117698A EP 1080834 A2 EP1080834 A2 EP 1080834A2
Authority
EP
European Patent Office
Prior art keywords
grinding machine
machine according
grinding
axis
carriage
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Withdrawn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
EP00117698A
Other languages
German (de)
English (en)
Other versions
EP1080834A3 (fr
Inventor
Heinrich Dr. Mushardt
Torsten Arndt
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.)
Schaudt Mikrosa BWF GmbH
Original Assignee
Schaudt Mikrosa BWF 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 Schaudt Mikrosa BWF GmbH filed Critical Schaudt Mikrosa BWF GmbH
Publication of EP1080834A2 publication Critical patent/EP1080834A2/fr
Publication of EP1080834A3 publication Critical patent/EP1080834A3/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Withdrawn legal-status Critical Current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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • 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
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • 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
    • Y10S451/00—Abrading
    • Y10S451/909—Wire polishing

Definitions

  • the invention relates to a grinding machine for centerless Grinding workpieces in the area of a longitudinal plane of the Grinding machine are arranged on a support with a first carriage arranged laterally from the longitudinal plane for a grinding wheel, also with a side of the Second slide arranged in the longitudinal plane for a regulating wheel, with a first dressing tool for dressing the grinding wheel at a first predetermined position and with a second dressing tool for dressing the regulating wheel on a second predetermined position.
  • a grinding machine of the type mentioned above is from the EP 0 448 509 B1 is known.
  • the grinding wheel is located in this known grinding machine and the regulating wheel in an arrangement known per se opposite sides of a longitudinal center plane of the grinding machine.
  • a support rail for the grinding workpieces In the area of the longitudinal median plane, i.e. between the grinding wheel and regulating wheel is in axial alignment along the longitudinal median plane a support rail for the grinding workpieces.
  • the support rail is also on formed in a known manner obliquely on its upper side. she can be moved in height.
  • the grinding wheel and the regulating wheel are with their drives each arranged on a slide. These sledges are both parallel to the longitudinal median plane along the so-called Z-axis as well as along a direction perpendicular to it, the so-called X-axis can be moved. They are also one each Rotatable vertical axis.
  • the grinding machine is for the grinding wheel on the one hand and for the regulating wheel on the other separate dressing tool provided.
  • the dressing tools are located on the respectively assigned slide and extend parallel to the X axis.
  • the dressing tools attack the grinding wheel or the regulating wheel on the rear Side, i.e. on the side from the median longitudinal plane and thus faces away from the workpiece.
  • the known machine has the disadvantage that on the back one additional grinding wheel and one regulating wheel Installation space is required in which the dressing tools are housed Need to become.
  • the disadvantage of the known grinding machine is the essential one functional disadvantage that due to the rear arrangement the dressing tools can cause accuracy problems. These problems arise as a result of temperature fluctuations as a result of different dimensions of the machine parts, but especially when the grinding wheel and / or the regulating wheel around the vertical axis (so-called B axis) and / or around an axis parallel to the X axis (so-called A axis) is pivoted become.
  • An external cylindrical grinding machine is known from WO 96/05940, where the workpieces are clamped between centers.
  • At this known machine tool are two side by side Grinding wheels are provided, each with their drives own sled.
  • the sledges are again in X and Z direction movable.
  • the two slides of this known grinding machine are included Provide dressing rollers.
  • suitable forward and backward driving the dressing rollers and by bringing the two sledges closer together is achieved that the dressing roller of the one carriage dress the grinding wheel on the other carriage and vice versa.
  • this well-known grinding machine also sits the dressing rollers on the back of the grinding wheels, i.e. on the side facing away from the workpiece.
  • the invention is based on the object, a Grinding machine of the type mentioned at the beginning, for the centerless Grinding of workpieces serves to further develop that the disadvantages mentioned above are avoided.
  • the dressing of the grinding wheel and / or the Regulating disc can be made without additional installation space, but above all in a way that is too little or no essential less contour errors on the workpiece if the Machine is exposed to different temperatures and / or when swiveling about the A and / or B axis positioning error should occur.
  • This task is performed on a grinding machine of the type mentioned Art solved according to the invention in that the positions can be found in the area of the longitudinal plane.
  • the dressing process is in the engagement area the wheels (grinding wheel and regulating wheel) are made, approximately where the two discs are during of a machining process are in contact with the workpiece.
  • This measure has the advantage that the dressing tools between the opposing disks are arranged, so no additional space is required.
  • the first and / or the second dressing tool it is possible to design the first and / or the second dressing tool to be movable.
  • first and / or the second dressing tool a third carriage are arranged, preferably along an axis parallel to the longitudinal plane is movable.
  • This measure has the advantage that the dressing movement along the Z axis by moving the third carriage can, so that the first and the second carriage for the Grinding wheel and the regulating wheel during the dressing process do not have to be moved.
  • the two sledges are not at all are designed to be movable along the Z axis, which for many Applications with regard to workpiece machining are sufficient, so that this is a significant simplification of the machine, which in turn results in lower manufacturing costs leads.
  • this can first and / or the second dressing tool but also on each be arranged other slide, namely the first dressing tool on the second slide and / or the second dressing tool on the first sled.
  • This measure has the advantage that the dressing process only is carried out by using machine axes, so that no separate drives for the dressing unit (separate dressing axis or axes) are required.
  • the respective dressing tool arranged on a movable arm, such that the dressing tool is preferably pivoted back Position, preferably within a circumferential contour the regulating wheel or grinding wheel and in a dressing position is outside this circumferential contour.
  • This measure has the advantage that movement sequences are simplified can be and that a collision between the dressing tool and the other sled or the other Dressing tool or the workpiece can be avoided if the dressing tool is when it is not needed is moved into its swiveled-back position.
  • the Arm can either be swiveled around an axis or along an axis is movable.
  • the first dressing tool fixed and the first sled is along a first axis parallel to the longitudinal plane and along a second axis movable perpendicular to the longitudinal plane.
  • This measure also has the advantage that the dressing process alone by moving the machine axes can be made without the need for separate dressing axes.
  • first and / or the second dressing tool with the support a common console is structurally united.
  • This measure has the advantage that in the area of the longitudinal median plane existing installations can be used several times, namely the console once to support the pad and on the other hand as the basis for one or two dressing tools.
  • the axes of the grinding wheel and regulating wheel are in the same The planes lie like the places of engagement of the dressing tools the grinding wheel and the regulating wheel.
  • exemplary embodiments of the invention are preferred where two separate dressing tools are not used, rather the first and second dressing tools are structurally combined into a common dressing tool.
  • This measure has the advantage of further downsizing the effort and dimensions of the grinding machine possible are.
  • the grinding machine according to the invention can be used for different use centerless grinding processes, namely external cylindrical grinding, internal cylindrical grinding as well as plunge grinding, in particular oblique plunge grinding.
  • 10 designates a grinding machine as a whole with centerless external cylindrical grinding of workpieces.
  • the Grinder 10 rests on a machine bed 12 that is is supported by feet 14 on a floor 16.
  • the grinding wheel 20 is around a first one Axis 21 rotatable.
  • a second carriage 22 carries a regulating wheel 24 which is arranged around a second axis 25 is rotatable and the associated drives (also not shown).
  • a workpiece 26 is located in between the disks 20, 24 Area of a longitudinal center plane 28 of the grinding machine 10.
  • the slides 18, 22 are mounted on cross slides 30, 32, as indicated at 34 and 36.
  • Both slides 18, 22 are therefore parallel along a Z axis to the longitudinal center plane 28 and along a perpendicular to it X-axis can be moved.
  • the corresponding axes are in the 2 and 3 are shown in plan view.
  • a swiveling of the regulating wheel 24 about the A axis produces an axial feed force relative to the workpiece 26 with which the Workpieces 26 during through grinding axially through the grinding gap transported between grinding wheel 20 and regulating wheel 24 become.
  • a pivoting of the regulating wheel 24 about the B axis serves the workpieces 26 radially to the grinding wheel 20 align and thereby the desired cylindricity or Adjust taper.
  • console 38 that extends along the longitudinal center plane 28 extends.
  • the console 38 is initially on the input side to a feed device indicated by dashed lines in FIG. 2 39 connected for the workpieces 26 or even structurally united with this.
  • the console 38 also carries a support rail on its upper side 40, the top of which in a manner known per se is formed obliquely.
  • the support rail 40 carries, as in FIG. 1 clearly shows the workpieces 26.
  • the discharge device 41 On the side of the console facing away from the feed device 39 38 there is a corresponding discharge device in the Z direction 41, which are ground during through grinding Workpieces 26 picks up and transported away. Also the discharge device 41 can be structurally combined with the bracket 38 his.
  • the workpieces 26 also on others Brought into the area of the support rail 40 or can be removed from it.
  • the feed device 39 and the discharge device 41 can be completely separate devices be with the console 38 no constructive connection to have.
  • FIG. 1 Bock 42 On the console 38 there is also a particular one in FIG. 1 Bock 42 to be recognized with a U-shaped cross-section.
  • Two parallel arms 44 and 46 follow vertically from the bracket 42 from the top.
  • a first arm 44 carries a first dressing tool 48 for the grinding wheel 20.
  • the second arm 46 carries second dressing tool 50 for dressing the regulating wheel 24.
  • axes 21 and 25 of grinding wheel 20 and regulating wheel 26 in the same substantially horizontal plane 52 are located.
  • About the same Level 52 preferably contains the engagement points of the dressing tools 48 and 50 when engaged with the Grinding wheel 20 and the control wheel 24 are.
  • the axis of the workpiece 26 is slightly above that Level 52 indicated, as indicated by a height offset h in Fig. 1. This measure is in the centerless technique Grinding workpieces known and therefore needs in the present Context not to be explained in more detail.
  • the dressing tools 48 and 50 are fixed in space, namely in illustrated embodiment in that it on the fixed console 38 are mounted.
  • the dressing process must by appropriate procedure of the to be dressed Disks 20 and 24 are performed. This is what is shown 1 to 3 no problem, because the washers 20 and 24 on their sledges 18 and 22 both Can be moved along the Z axis as well as along the X axis are.
  • Fig. 2 shows the dressing process for which the carriage 18 and 22 by moving along the Z axis accordingly far left were moved.
  • the sledges became 18th and 22 so far in the X direction on the dressing tools 48 and 50 moved to engage the surface of the disks 20 and 24 arrive.
  • the disks 20 and 24 can now be dressed be that by moving the carriage 18, 22 in Z direction once or several times on the dressing tools 48 and 50 to be operated with the intervention of the same.
  • the grinder 60 in turn has a first carriage 62 for one Grinding wheel 64 and a second carriage 66 for a regulating wheel 68 on. Located between the discs 64 and 68 there is in turn a support rail 70 for those to be machined Workpieces 72 (Fig. 6).
  • the support rail 70 extends along the longitudinal center plane 74 of the grinding machine 60.
  • a first arm 76 is arranged on the second carriage 66 in the direction of an axis 77 which is parallel to the X axis, is movable.
  • the first arm 76 carries on its front a first dressing tool 78 for dressing the grinding wheel 64.
  • a second arm 80 is attached to the first carriage 62, and although pivotable about an axis 82.
  • the axis 82 runs parallel to the Z axis.
  • the second arm 80 carries a second dressing tool 84 for dressing the regulating wheel 68.
  • the second carriage 66 Since the first carriage 62 can be moved in the X and Z directions 4 to 6 for the grinding machine 60 the second carriage 66 only requires that this is movable along the X axis. Movability along the Z axis is not necessary in this case.
  • the first arm 76 can also move in the direction of the axis 77 if necessary extend in the X direction upwards.
  • the X movement can also be carried out here corresponding method of the second carriage 66 is shown become.
  • FIG. 6 shows a third operating position of the Grinding machine 60 '.
  • the moving parts are through Add a double apostrophe to the reference symbol.
  • Fig. 7 shows a third embodiment of an inventive Grinding machine 90 with a first carriage 92, the carries a grinding wheel 94 and a second carriage 96, which carries a regulating wheel 98.
  • the conditions are the same as for the grinding machine 60 according to FIGS. 4 to 6 7 in the grinding machine 90 according to FIG. that the first carriage 92 for the grinding wheel 94 both in X- and Z-direction can be moved while the second Only move carriage 96 for regulating wheel 98 in the X direction can be.
  • the first arm 102 In the area of the longitudinal median plane 100 there is a first arm 102 spatially arranged.
  • the first arm 102 carries a first dressing tool 104 for the grinding wheel 94.
  • a second arm 106 is on the first carriage 92 and thus movably arranged.
  • the second arm 106 is about an axis 108 swiveling, which runs parallel to the Z axis.
  • the second Arm 106 carries a second dressing tool 110 for the regulating wheel 98.
  • the outer circumference the grinding wheel 94 in a simple manner by the method of first carriage 92 in the X and Z directions to the first dressing tool 104 are brought up to dress the grinding wheel 94.
  • the dressing movement in turn happens exclusively by means of the machine axes in the first slide 92.
  • the second arm 106 is expedient by folding over or pivoting about the axis 108 from the in Fig. 7 drawn position pivoted so that it is in the X direction does not protrude beyond the outer contour of the grinding wheel 94.
  • the second arm 106 In order to dress the regulating wheel 98, the second arm 106 however, extended into the position shown in FIG. 7.
  • the second dressing tool 110 can then in the already described Way by moving the first carriage 92 in the X and Z directions in engagement with the outer periphery of the regulating wheel 98 to be brought.
  • the X movement can alternatively be used can also be carried out by the second carriage 96.
  • FIG. 8 shows a fourth embodiment of a grinding machine 120, which is used for angular plunge grinding.
  • the grinding machine 120 also includes a first carriage 122 a grinding wheel 124, the axis 126 obliquely to one Longitudinal center plane 128 of the grinding machine 120 is employed. Because of this, the grinding wheel 124 has the one in oblique plunge-cut grinding machines usual conical design.
  • a second slide 130 carries a regulating wheel 132. Between There is a workpiece on grinding wheel 124 and regulating wheel 12 134. The workpiece 134 is on a support (not shown), which in turn on a third sled 136 is mounted. The third carriage 136 is in the Z direction movable. In contrast, the carriages 122 and 130 can only can be moved in the X direction.
  • the third carriage 136 schematically indicated linear drive 138, which e.g. a ball screw or the like.
  • the third sledge 136 runs on rails 140.
  • a first arm 142 is mounted on the third carriage 136, which is a first dressing tool 144 for the grinding wheel 124 wearing. There is also a second on the third carriage 136 Arm 146 attached to which a second dressing tool 148 for the regulating wheel 132.
  • the dressing process executed in that the respective wheel to be dressed in the X direction by moving the associated carriage during the dressing movement in the Z direction itself is exercised by moving the third carriage 136.
  • the grinding wheel, the regulating wheel and the two dressing tools all kinematic configurations, namely adjustability along two axes, along one axis or a fixed installation in a permutative exchange conceivable.
  • the invention encompasses all conceivable Combinations. It is only important that through appropriate movement units the dressing axes can be realized, i.e. an infeed movement in the X direction and a dressing movement in the Z direction. That in individual cases for individual assemblies further axes of movement can be provided, is irrelevant in this regard.
  • the dressing tools are located in the area of the longitudinal median plane and therefore always on the inside of the grinding wheel and the Intervene control wheel, i.e. from the space between these two disks out.
  • the grinding machine according to the invention for different Grinding tasks with centerless grinding can be, that is for external cylindrical grinding, internal cylindrical grinding and plunge grinding, especially oblique plunge grinding.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP00117698A 1999-08-27 2000-08-17 Rectifieuse "sans centre" Withdrawn EP1080834A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19940687 1999-08-27
DE19940687A DE19940687A1 (de) 1999-08-27 1999-08-27 Schleifmaschinen zum spitzenlosen Schleifen von Werkstücken

Publications (2)

Publication Number Publication Date
EP1080834A2 true EP1080834A2 (fr) 2001-03-07
EP1080834A3 EP1080834A3 (fr) 2003-09-10

Family

ID=7919806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117698A Withdrawn EP1080834A3 (fr) 1999-08-27 2000-08-17 Rectifieuse "sans centre"

Country Status (4)

Country Link
US (1) US6569000B1 (fr)
EP (1) EP1080834A3 (fr)
JP (1) JP2001105313A (fr)
DE (1) DE19940687A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080046A1 (fr) * 2004-02-19 2005-09-01 Salvatore Vaccaro Rectifieuse sans centres

Families Citing this family (13)

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Publication number Priority date Publication date Assignee Title
CA2335806A1 (fr) * 1998-06-22 1999-12-29 Tru Tech Systems, Inc. Meuleuse, logiciel informatique servant a faire fonctionner celle-ci, et utilisations de ceux-ci
CH694940A5 (de) * 2000-11-03 2005-09-30 Urs Tschudin Spitzenlose Rundschleifmaschine.
JP4511255B2 (ja) * 2004-06-17 2010-07-28 株式会社日進機械製作所 センタレス研削盤
BRMU8602208U (pt) * 2006-10-02 2008-05-20 Maquenge Maquinas Operatrizes disposição construtiva introduzida em retificadora centerless
US7797074B2 (en) * 2007-03-01 2010-09-14 Mori Seiki Usa, Inc. Machine including grinding wheel and wheel dresser
DE102007023894A1 (de) 2007-05-23 2008-11-27 Robert Bosch Gmbh Vorrichtung zum Rundschleifen wenigstens eines Abschnittes eines Bauteiles
JP5154880B2 (ja) * 2007-10-03 2013-02-27 中村留精密工業株式会社 ドレス装置を備えた硬質脆性板の面取装置
RU2355551C1 (ru) * 2007-11-21 2009-05-20 Федеральное государственное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" (ЮФУ) Способ шлифования (варианты)
CA2717331C (fr) * 2009-06-22 2017-12-19 Dan Schellenberg Rectification sans pointe
US9498865B2 (en) * 2013-12-27 2016-11-22 United Technologies Corporation System and methods for rough grinding
DE102014115149B3 (de) * 2014-10-17 2016-01-21 Schaudt Mikrosa Gmbh Schleifmaschine, insbesondere kompakt gestaltete spitzenlose Schleifmaschine
US10195709B2 (en) * 2015-02-09 2019-02-05 Glebar Acquisition, Llc Motorized blade rest apparatus and grinding system with motorized blade rest apparatus
JP6453199B2 (ja) * 2015-10-16 2019-01-16 光洋機械工業株式会社 センタレス研削盤

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JPS59227360A (ja) * 1983-06-08 1984-12-20 Toyoda Mach Works Ltd センタレス研削盤における調整車修正装置
US4587763A (en) * 1985-02-17 1986-05-13 Hahn Robert S Grinding machine
ATE92824T1 (de) * 1990-03-23 1993-08-15 Agathon Ag Maschf Spitzenlose rundschleifmaschine.
EP0448509B1 (fr) 1990-03-23 1993-10-06 Agathon A.G. Maschinenfabrik Rectifieuse cylindrique sans centre
EP0616870A1 (fr) * 1993-03-23 1994-09-28 Agathon A.G. Maschinenfabrik Rectifieuse cylindrique centerless
ES2133784T3 (es) 1994-08-19 1999-09-16 Unova Uk Ltd Mejoras en o relacionadas con maquinas de rectificar con muela abrasiva.
US5674106A (en) * 1996-02-08 1997-10-07 Royal Masters Grinders, Inc. Centerless grinder assembly and method of operating the same
US6123605A (en) * 1997-02-20 2000-09-26 Koyo Machine Industries Company Ltd. Dressing device for centerless grinding machine and dressing method for centerless grinding machine
JP3215343B2 (ja) * 1997-02-20 2001-10-02 光洋機械工業株式会社 センタレス研削盤およびそのセンタレス研削方法
GB9721449D0 (en) * 1997-10-10 1997-12-10 Douglas Curtis Limited Centreless grinder
US5928065A (en) * 1998-02-09 1999-07-27 Cummins Engine Company, Inc. Centerless grinding machine with optimal regulating wheel truing and dressing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080046A1 (fr) * 2004-02-19 2005-09-01 Salvatore Vaccaro Rectifieuse sans centres

Also Published As

Publication number Publication date
JP2001105313A (ja) 2001-04-17
DE19940687A1 (de) 2001-03-01
EP1080834A3 (fr) 2003-09-10
US6569000B1 (en) 2003-05-27

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