EP1470894A1 - Dispositif pour le dressage d'une meule cupuliforme - Google Patents

Dispositif pour le dressage d'une meule cupuliforme Download PDF

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Publication number
EP1470894A1
EP1470894A1 EP03405282A EP03405282A EP1470894A1 EP 1470894 A1 EP1470894 A1 EP 1470894A1 EP 03405282 A EP03405282 A EP 03405282A EP 03405282 A EP03405282 A EP 03405282A EP 1470894 A1 EP1470894 A1 EP 1470894A1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
tool
grinding
linear drive
cup
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
EP03405282A
Other languages
German (de)
English (en)
Other versions
EP1470894B1 (fr
Inventor
Dr. Walter H. Pfluger
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.)
Agathon AG Maschinenfabrik
Original Assignee
Agathon AG Maschinenfabrik
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32946981&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1470894(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agathon AG Maschinenfabrik filed Critical Agathon AG Maschinenfabrik
Priority to AT03405282T priority Critical patent/ATE333966T1/de
Priority to DE50304356T priority patent/DE50304356D1/de
Priority to EP03405282A priority patent/EP1470894B1/fr
Publication of EP1470894A1 publication Critical patent/EP1470894A1/fr
Application granted granted Critical
Publication of EP1470894B1 publication Critical patent/EP1470894B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • B24B53/005—Positioning devices for conditioning tools
    • 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
    • B24B53/001—Devices or means for dressing or conditioning abrasive surfaces involving the use of electric current
    • 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
    • B24B53/003—Devices or means for dressing or conditioning abrasive surfaces using at least two conditioning tools
    • 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
    • B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels

Definitions

  • the present invention relates to a device for Conditioning a cup-shaped grinding wheel of a grinding machine for Grinding workpieces, in which the cup-shaped grinding wheel by one Grinding wheel axis can be rotated and driven in one on the grinding machine arranged carriage is held, and in which the cup-shaped Grinding wheel for conditioning in active connection with on the grinding machine arranged tools can be brought.
  • Such grinding machines are used in particular for grinding Inserts used.
  • the aim here is that the grinding wheel can be kept in the best possible condition so that the required efficiency, accuracy and quality are met can.
  • the best possible condition of a grinding wheel is then achieved if it has maximum sharpness, that is, the grain protrusion compared to the binding material that binds the grains as large as possible, that it is pure, that means that the gaps between grain and Binding material is as free as possible, and that it is correctly profiled, that is, that it needs to be re-profiled from time to time.
  • Conditioning one Grinding wheel is thus understood to mean cleaning, sharpening and profiling the Grinding wheel.
  • a method is known from EP-A-0 909 611 by means of which the sharpness of a metal bonded grinding wheel can be improved.
  • an electrode is provided which is opposite the grinding wheel is arranged, separated by a gap, in which gap an electrolytic Coolant is introduced.
  • the electrode is with the negative pole connected to a power source while the grinding wheel is connected to the positive Pole of this power source is connected.
  • a current is passed through the gap which dissolves the metal bond into ions or converts the Metal bond in hydroxides and oxides results.
  • the metal bond will electrochemically reset, the overhang of the abrasive grains is increased, The grinding wheel is sharpened in this way.
  • a metal-bonded grinding wheel can thus be used with this method be sharpened, a cleaning of the gaps between the However, this does not guarantee abrasive grains.
  • the object of the present invention is now a device for a grinding machine with which the grinding wheel in can be optimally conditioned, with at least parts of this Conditioning process for reasons of efficiency also during the grinding process should be able to be carried out.
  • this object is achieved in that on the slide at least two aligned parallel to the grinding wheel axis Linear drives are arranged side by side, at the end areas of each a tool is attached such that it is against the circular Machining surface of the grinding wheel adjustable and from this can be switched off that the first tool attached to the first linear drive is a tool for practicing part of conditioning the is an annular machining surface of the grinding wheel, and that that second tool, which is attached to the second linear drive, a tool for performing another part of conditioning the annular Machining area of the grinding wheel is.
  • the first tool advantageously has the shape of a Cup disc on which is rotatably mounted in the first linear drive Shaft is attached, which is aligned parallel to the grinding wheel axis, and the annular face of the cup wheel against the annular machining surface the grinding wheel is directed.
  • the second tool is advantageous to design the second tool as an electrode, which on the second linear actuator is attached, and which is designed so that it covers an annular machining surface over part of the circumference, wherein the electrode and the grinding wheel are each connected to a power source are, and in the gap between the electrode and grinding wheel an electrolytic Coolant is present.
  • this electrode is an optimal Sharpening of the grinding wheel achievable.
  • the second linear drive can advantageously be rotated with one mounted shaft, which is aligned parallel to the grinding wheel axis on which an adapter covering the shaft end can be attached, in which the electrode can be attached.
  • the two cup wheels complement each other advantageously, that is harder cup wheel is used for profiling, the softer cup wheel for Sharpening or in-process cleaning of the grinding wheel.
  • Another advantageous embodiment of the invention consists in that the shafts of the first linear drive and the second linear drive over Drive means are drivable.
  • the first tool and / or the second tool can during the sequence of a grinding process for grinding a workpiece via the first linear drive or via the second linear drive to the grinding wheel be employed. Cleaning and, if necessary, sharpening the grinding wheel can thus be carried out while performing a grinding operation there is no loss of time due to travel distances.
  • Fig. 1 shows the cup-shaped grinding wheel 1, which is in a bearing housing 2 is kept rotating, and which can be driven by a motor 3.
  • the Bearing housing is held in a known manner on a slide arrangement 4, through which the grinding wheel 1 in a known manner with respect to grinding workpiece can be moved into the correct position.
  • This workpiece is clamped in a workpiece holder 5, which workpiece holder 5 has the required degrees of freedom in a known manner, so that the workpiece in the desired manner through the grinding wheel 1 can be ground.
  • a first linear drive 7 and a second one are on the bearing housing 2 Linear drive 8 attached.
  • the first linear drive 7 and the second linear drive 8 are arranged side by side and parallel to the grinding wheel axis 18 aligned.
  • a first tool 9 is located on the first linear drive 7 attached while a second tool 10 is arranged on the second linear drive 8 is.
  • the first tool 9 and the second tool 10 are over the respective linear drive 7 or 8 in the grinding axis direction against the circular Machining surface 11 of the grinding wheel 1 adjustable and from this can be switched off. With this first tool 9 and the second tool 10, the grinding wheel 1 can be conditioned as described below becomes.
  • first Tool 9 which is attached to the first linear drive 7, the shape of a Has cup wheel 14.
  • the first linear drive 7 and this the first tool 9 forming cup wheel 14 are arranged so that the annular End face 12 of the cup wheel 14 against the annular machining surface 11 of the grinding wheel 1 is directed.
  • This cup disk 14 is on a first linear drive 7 rotatably mounted shaft, as later is described, which can be driven in rotation by a hydraulic motor 13 is.
  • a hydraulic motor 13 is another could instead of the hydraulic motor Motor, for example an electric motor, can be used.
  • the second linear drive 2 carries a second tool 10, which as Electrode 15 is formed.
  • This electrode 15, for example made of copper or can consist of graphite is at the front end region of the second linear drive 8 attached, as will be seen later.
  • This electrode 15 is like this connected to the second linear drive 8 and has such a shape that they over the annular machining surface 11 of the grinding wheel 1 covers a certain angle, as can be seen in particular from FIG. 3.
  • the electrode 15 is in a known manner with a current source, not shown connected and is isolated with respect to the second linear drive 8.
  • the Grinding wheel 1, the use of an electrode 15 as a second tool 10 has a metallic bond, is also in a known manner with the Not shown power source connected and isolated from the housing 2.
  • the construction and the Operation of such a device is for example in EP-A-0 909 611.
  • the Cup wheel 14 placed on a shaft 17 mounted in the first linear drive 7.
  • This shaft 17 can be driven in rotation via the hydraulic motor 13 with given speed.
  • the first linear drive 7 is CNC-controlled, the cup wheel 14 can thereby be counteracted in the direction of the grinding wheel axis 18 start the circular machining surface 11 of the grinding wheel 1, until they come into contact with each other.
  • the grain size and hardness of the cup wheel 14 are, for example, the properties of the grinding wheel 1 adjusted that the gaps between the abrasive grains of the Grinding wheel 1 can be cleaned by the abrasion of the cup wheel 14.
  • This Cleaning can be carried out as required while performing a Grinding process, for example when grinding an indexable insert, be carried out.
  • the speed of the cup wheel 14 is the speed the grinding wheel 1 or its peripheral speed and the properties adapted to the grinding wheel 1. This will make it quick and good Cleaning achieved with minimal grinding wheel and cup wheel wear.
  • FIG. 4 shows how the Electrode 15 is attached to the second linear drive 8.
  • This too second linear drive 8 is equipped with a shaft 19, in the same way as the first linear drive 7 (Fig. 5).
  • the end area of the second linear drive 8 is provided with an adapter 20, which also the front end of the shaft 19th covers.
  • the electrode 15 is attached to this adapter 20.
  • This electrode 15 is against the CNC-controlled second linear drive 8 circular machining surface 11 of the grinding wheel 1 adjustable. in this connection remains between the electrode 15 and the annular machining surface 11 a gap 21 exist.
  • the electrolytic cooling lubricant is in this gap 21 as already mentioned, via bores in the electrode 15 brought in.
  • This sharpening process of the grinding wheel can be done easily and execute if necessary during a grinding process.
  • the Grinding wheel 1 cleaned with the cup wheel 14 while using the electrode 15 is sharpened and profiled with the external dressing device 6.
  • the Cup disk 14 can also be designed and with the corresponding Circumferential speed on the grinding wheel 1 that both cleaning and profiling of the grinding wheel 1 can be achieved can.
  • Profiling the grinding wheel with the external dressing device 6 is then omitted, the grinding machine could without such a dressing device be trained.
  • the profiling process can therefore be carried out more optimally.
  • the grinding machine could be without external dressing device.
  • the grinding machine is like this in a known manner designed that the necessary by conditioning the grinding wheel Corrections to the zero positions of all disks are carried out automatically can be.
  • the grinding wheel can be depending on the design, also during the execution of grinding processes conditioning in an optimal way, an interruption of the successive Grinding operations can at least limit efficiency and the grinding quality is increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP03405282A 2003-04-22 2003-04-22 Dispositif pour le dressage d'une meule cupuliforme Revoked EP1470894B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT03405282T ATE333966T1 (de) 2003-04-22 2003-04-22 Vorrichtung zum konditionieren einer topfförmigen schleifscheibe einer schleifmaschine
DE50304356T DE50304356D1 (de) 2003-04-22 2003-04-22 Vorrichtung zum Konditionieren einer topfförmigen Schleifscheibe einer Schleifmaschine
EP03405282A EP1470894B1 (fr) 2003-04-22 2003-04-22 Dispositif pour le dressage d'une meule cupuliforme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405282A EP1470894B1 (fr) 2003-04-22 2003-04-22 Dispositif pour le dressage d'une meule cupuliforme

Publications (2)

Publication Number Publication Date
EP1470894A1 true EP1470894A1 (fr) 2004-10-27
EP1470894B1 EP1470894B1 (fr) 2006-07-26

Family

ID=32946981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405282A Revoked EP1470894B1 (fr) 2003-04-22 2003-04-22 Dispositif pour le dressage d'une meule cupuliforme

Country Status (3)

Country Link
EP (1) EP1470894B1 (fr)
AT (1) ATE333966T1 (fr)
DE (1) DE50304356D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072182A1 (fr) * 2007-12-19 2009-06-24 Agathon AG Maschinenfabrik Ponceuse dotée d'un dispositif de conditionnement d'une meule et son procédé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29707235U1 (de) * 1997-04-22 1997-06-19 Wendt GmbH, 40670 Meerbusch Vorrichtung zum Bearbeiten einer Schleifscheibe
US5833520A (en) * 1993-04-07 1998-11-10 Nec Corporation Mirror polishing device
EP0909611A1 (fr) * 1997-10-14 1999-04-21 Agathon A.G. Maschinenfabrik Procédé pour meuler les surfaces de pièces et dispositif pour la mise en oeuvre du procédé
EP1063057A2 (fr) * 1999-06-26 2000-12-27 Blohm Maschinenbau GmbH Dispositif de dressage de meules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833520A (en) * 1993-04-07 1998-11-10 Nec Corporation Mirror polishing device
DE29707235U1 (de) * 1997-04-22 1997-06-19 Wendt GmbH, 40670 Meerbusch Vorrichtung zum Bearbeiten einer Schleifscheibe
EP0909611A1 (fr) * 1997-10-14 1999-04-21 Agathon A.G. Maschinenfabrik Procédé pour meuler les surfaces de pièces et dispositif pour la mise en oeuvre du procédé
EP1063057A2 (fr) * 1999-06-26 2000-12-27 Blohm Maschinenbau GmbH Dispositif de dressage de meules

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072182A1 (fr) * 2007-12-19 2009-06-24 Agathon AG Maschinenfabrik Ponceuse dotée d'un dispositif de conditionnement d'une meule et son procédé
JP2009184103A (ja) * 2007-12-19 2009-08-20 Agathon Ag Mas Fab 砥石車を適当な状態にする装置を備えた研磨機及びその方法
US8410390B2 (en) 2007-12-19 2013-04-02 Agathon Ag Maschinenfabrik Grinding machine with a device for conditioning a grinding wheel and a method of conditioning a grinding wheel
CN101462243B (zh) * 2007-12-19 2013-05-29 阿加森机械制造股份有限公司 用于磨削工件的磨床及在磨床中整修杯状砂轮的方法

Also Published As

Publication number Publication date
DE50304356D1 (de) 2006-09-07
EP1470894B1 (fr) 2006-07-26
ATE333966T1 (de) 2006-08-15

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