EP0858865B1 - Verfahren und Vorrichtung zum Abrichten von Schleifscheiben mit profilierter Arbeitsfläche - Google Patents
Verfahren und Vorrichtung zum Abrichten von Schleifscheiben mit profilierter Arbeitsfläche Download PDFInfo
- Publication number
- EP0858865B1 EP0858865B1 EP98102464A EP98102464A EP0858865B1 EP 0858865 B1 EP0858865 B1 EP 0858865B1 EP 98102464 A EP98102464 A EP 98102464A EP 98102464 A EP98102464 A EP 98102464A EP 0858865 B1 EP0858865 B1 EP 0858865B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dressing
- grinding wheel
- dressing roll
- roll
- diamond
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 16
- 229910003460 diamond Inorganic materials 0.000 claims description 36
- 239000010432 diamond Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 208000008918 voyeurism Diseases 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/065—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels having other than straight profiles, e.g. crowned
-
- 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
- B24B53/12—Dressing tools; Holders therefor
- B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor
Definitions
- the invention relates to a method and a device for dressing grinding wheels with profiled Work surface by means of a dressing roller, in which one Grinding wheel and dressing roller, the surface with Material of higher hardness than that of the dressing Grinding wheel is occupied, with the same peripheral speed can circulate and with high pressure clenching.
- Disc-shaped diamond tools with a diamond coating an end face of a hard metal disc are from the JP-A-08 192359 has become known. Your area of application is grinding workpieces.
- the diamond-set disc was subject to only one very little wear, which only came about that the contact between the grinding wheel and the Dressing roll was not punctiform, but on one radial line took place. Because the diamond coverage extended itself on both sides and across the peripheral surface the dressing roller rounded on its surface. As for the destruction of the binder bridges forces to be exerted on the wheel to be dressed were very high, but the diamond-coated dressing rollers should be quite thin to get fine curves of the It turned out to be possible to edit the cross section of the pane through the constant appearance of side forces Trouble.
- the diamond-set dressing rollers needed lateral support with a shorter radial Extension in the form of hard metal disks, which however the geometrical scope due to its dimensions and thus restricted the possible applications.
- the invention avoids the disadvantages of the prior art Technology. It is the object of the invention with simple Means create a way of abrasion in the process of crushing mentioned at the beginning different surface speeds between Avoid grinding wheel and dressing roller and thereby to achieve long service life of the dressing tool.
- the invention is that as a dressing roller used a circular flat carbide disc, the one face just covered with diamond material, that you have the angle of attack of the dressing roller changed so that grinding wheel and dressing roller be adjusted and adjusted to each other in such a way that only one between the grinding wheel and the dressing roller almost point-like contact takes place and that one the contact pressure between the grinding wheel and the dressing roller so high that the binder bridges at the point of contact between the individual grinding wheels of the Break the grinding wheel.
- One is used to carry out this method Device for dressing grinding wheels with profiled Work surface consisting of a recording for the grinding wheel to be dressed, one holder for as a hard metal disc with a flat assignment of End face formed with polycrystalline diamond material Dressing roller and a drive device as well a pressing device through which the dressing roller and the grinding wheel are pressed together with a electronic control device according to a predeterminable program the axial feed of the dressing roller relative to the grinding wheel to be dressed, the Angle of attack of the dressing roller in one position each in which only a point-like contact between the hard metal disc and the one to be dressed Grinding wheel takes place, the pressure during the Dressing process sets such that at the point of contact the binder bridges between the individual Break the grinding wheels of the grinding wheel.
- the punctiform contact ensures that the Contact forces do not need to be as high as in flat touch. That is also the reason why the necessary reaction forces due to the thin diamond coating be picked up without damage when pressed can.
- This setting on point contact is turned on by the dressing roller determined the currently processed surface of the appropriate grinding wheel to be dressed reached angle. This can be automated by a control device respectively.
- the targets are set up for crash use by making a hole centrally in these disks cuts to get a washer that one can then clamp in the tool holder.
- the one with this Process step waste, namely a Circular disc with a smaller diameter can be used for the Continue to use cutting tools and these Circular disc with a smaller diameter also in Split pieces.
- the production of a dressing roll for the implementation is expediently carried out by placing it in a circular hard metal disc, one end for other purposes is just covered with diamond material, centrally a hole incorporated, and introduces a mandrel in this hole.
- This device can be made more effective that the layer thickness of the diamond coating of the dressing roller is reduced by electroerosion.
- This device can have a particularly long life if the rotary movement of the dressing roller from the Rotational movement of the grinding wheel is derived.
- This device can be used very effectively if the dressing roller on the diamond material Face a larger diameter than on the opposite side.
- the diamond coating is preferably a polycrystalline Layer.
- PCD polycrystalline diamond discs
- the dressing roller consists of a hard metal disc 1, which is coated on one side with diamond material 2.
- the dressing roller has a hole 3 in the center, in order to Bracket for their rotatable storage can be clamped to be able to.
- the Diameter of the dressing roller in the direction of the End face carrying diamond material can be fillets and the like Dress the shapes on the grinding wheel 4.
- the PCD coating on the hard metal disk can be fixed on the hard metal carrier during the manufacturing process or can be applied as a thin layer using the CVD process.
- the relative speed between the diamond grinding wheel and the diamond crushing roller is zero when these two roll on each other, rarely it is exactly zero because of the slip.
- a great advantage of this "round design" according to the invention is the fact that the diameter can definitely decrease due to wear and the tool can still be used (eg centerless grinding straight, the crushing roller only has to be adjusted radially). The control therefore does not need to be adjusted in the axial direction according to the wear of the tool, but only radially. This leads to the possibility of using much simpler controls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
- Fig.1
- eine mit Diamantmaterial belegte Abrichtrolle in Stirnseitenansicht,m
- Fig.2
- die mit Diamantmaterial belegte Abrichtrolle in Stirnseitenansicht,
- Fig.3
- eine andere mit Diamantmaterial belegte Abrichtrolle mit sich verjüngendem Durchmesser in Stirnseitenansicht,
- Fig.4
- die mit Diamantmaterial belegte Abrichtrolle in Arbeit an einer profilierten Schleifscheibe an einer Stelle, an der mit achsparallel eingestellten Wellen gearbeitet wird.
- Fig.5
- die mit Diamantmaterial belegte Abrichtrolle in Arbeit an einer profilierten Schleifscheibe an einer Stelle, an der die Wellen von Abrichtrolle und abzurichtender Schleifscheibe unter einem spitzen Winkel zu einander stehen gearbeitet wird.
Die Relativgeschwindigkeit zwischen Diamant-Schleifscheibe und Diamant-Crushierrolle liegt bei Null, wenn diese beiden aufeinander abrollen, selten ist sie wegen des Schlupfes exakt null.
Ein großer Vorteil dieser erfindungsgemäßen "Rondenausführung" ist die Tatsache, daß der Durchmesser durch Verschleiß durchaus abnehmen kann und das Werkzeug dennoch weiter einsetzbar ist (z.B. Spitzenlosschleifen gerade, die Crushierrolle muß lediglich radial nachgestellt werden). Die Steuerung braucht daher nicht in axialer Richtung entsprechend der Abnutzung des Werkzeuges nachgestellt zu werden, sondern lediglich radial. Das führt zu der Möglichkeit, wesentlich einfachere Steuerungen in Anwendung zu bringen.
Claims (7)
- Verfahren zum Abrichten von Schleifscheiben (4) mit profilierter Arbeitsfläche mittels einer Abrichtrolle (1),
bei dem man Schleifscheibe (4) und Abrichtrolle (1), deren Oberfläche mit Material von höherer Härte als das der abzurichtenden Schleifscheibe (4) belegt ist, mit gleicher Umfangsgeschwindigkeit umlaufen läßt und dabei mit hohem Druck zusammenpreßt,
dadurch gekennzeichnet, daß man als Abrichtrolle (1) eine kreisrunde ebene Hartmetallscheibe verwendet, deren eine Stirnseite mit Diamantmaterial (2) eben belegt,
daß man den Anstellwinkel der Aufnahme der Abrichtrolle (1) derart verändert, daß Schleifscheibe (4) und Abrichtrolle (1) derart zueinander ein- und nachgestellt werden,
daß zwischen Schleifscheibe (4) und Abrichtrolle (1) lediglich eine nahezu punktförmige Berührung stattfindet
und daß man den Anpreßdruck zwischen Schleifscheibe (4) und Abrichtrolle (1) so hoch wählt, daß am Berührungspunkt die Bindemittelbrücken zwischen den einzelnen Schleifkörpern der Schleifscheibe (4) zerbrechen. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß man vor Beginn der Abrichtarbeiten die Schichtdicke der Diamantbelegung der Abrichtrolle durch Elektroerosion vermindert. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß man die Drehbewegung der Abrichtscheibe von der Drehbewegung der Schleifscheibe ableitet. - Vorrichtung zum Abrichten von Schleifscheiben mit profilierter Arbeitsfläche, bestehend aus einer Aufnahme für die abzurichtende Schleifscheibe, einer Aufnahme für die als Hartmetallscheibe mit ebener Belegung der Stirnseite mit polykristalinem Diamantmaterial ausgebildete Abrichtrolle und einer Antriebsvorrichtung sowie einer Preßvorrichtung, durch die die Abrichtrolle und die Schleifscheibe zusammengepreßt sind,
gekennzeichnet durch
eine elektronische Steuerungsvorrichtung, die nach einem vorgebbaren Programm(a) den axialen Vorschub der Abrichtrolle (1) relativ zur abzurichtenden Schleifscheibe,(b) den Anstellwinkel der Abrichtrolle in jeweils eine Position, bei der eine lediglich punktförmige Berührung zwischen der Hartmetallscheibe und der abzurichtenden Schleifscheibe stattfindet, und(c) den Preßdruck während des Abrichtvorganges derart einstellt, daß am Berührungspunkt die Bindemittelbrücken zwischen den einzelnen Schleifkörpern der Schleifscheibe zerbrechen. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die Schichtdicke der Diamantbelegung (2) der Abrichtrolle durch Elektroerosion vermindert ist. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die Drehbewegung der Abrichtrolle von der Drehbewegung der Schleifscheibe (4) abgeleitet ist. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die Abrichtrolle an der mit Diamantmaterial (2) belegten Stirnseite einen größeren Durchmesser als auf der gegenüberliegenden Seite aufweist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19705989 | 1997-02-17 | ||
| DE19705989 | 1997-02-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0858865A2 EP0858865A2 (de) | 1998-08-19 |
| EP0858865A3 EP0858865A3 (de) | 1999-02-03 |
| EP0858865B1 true EP0858865B1 (de) | 2002-06-26 |
Family
ID=7820460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98102464A Expired - Lifetime EP0858865B1 (de) | 1997-02-17 | 1998-02-13 | Verfahren und Vorrichtung zum Abrichten von Schleifscheiben mit profilierter Arbeitsfläche |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0858865B1 (de) |
| DE (2) | DE59804544D1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10133807A1 (de) * | 2001-07-11 | 2003-01-30 | Bosch Gmbh Robert | Vorrichtung und Verfahren zum Schärfen eines Werkzeugs |
| DE102008010302A1 (de) * | 2008-02-21 | 2009-08-27 | Liebherr-Verzahntechnik Gmbh | Vorrichtung und Verfahren zur Prototypen- und Kleinserienfertigung von Zahnrädern |
| EP2230048B1 (de) | 2009-03-19 | 2013-05-01 | Siemens Aktiengesellschaft | Verfahren und Werkzeug zum Abrichten einer topfförmigen Schleifscheibe |
| CN115194652A (zh) * | 2022-08-30 | 2022-10-18 | 常州皓研智能科技有限公司 | 双面抛光设备上抛光盘修整装置及其修整方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH631371A5 (de) * | 1978-06-29 | 1982-08-13 | Diamond Sa | Verfahren zur bearbeitung eines teils aus polykristallinem, synthetischem diamant mit metallischem binder. |
| US4760668A (en) * | 1986-07-02 | 1988-08-02 | Alfred Schlaefli | Surface grinding machine and method |
| JPH07100763A (ja) * | 1993-09-30 | 1995-04-18 | Toyoda Mach Works Ltd | 砥石修正方法 |
| DE4436741A1 (de) * | 1994-10-14 | 1996-04-18 | Michael Dr Ing Kaiser | Verfahren und Vorrichtung zum Abrichten von Schleifscheiben mit profilierter Arbeitsfläche |
| JP3004186B2 (ja) * | 1995-01-13 | 2000-01-31 | 真一 東江 | 研削砥石の総形成形用ドレッサとこれを用いた研削砥石の総形成形方法 |
-
1998
- 1998-02-13 DE DE59804544T patent/DE59804544D1/de not_active Expired - Fee Related
- 1998-02-13 EP EP98102464A patent/EP0858865B1/de not_active Expired - Lifetime
- 1998-02-17 DE DE19806591A patent/DE19806591A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0858865A3 (de) | 1999-02-03 |
| EP0858865A2 (de) | 1998-08-19 |
| DE59804544D1 (de) | 2002-08-01 |
| DE19806591A1 (de) | 1998-10-29 |
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