EP0218187A2 - Process and arrangement for the drive control of various successively operating grinding wheels - Google Patents
Process and arrangement for the drive control of various successively operating grinding wheels Download PDFInfo
- Publication number
- EP0218187A2 EP0218187A2 EP86113530A EP86113530A EP0218187A2 EP 0218187 A2 EP0218187 A2 EP 0218187A2 EP 86113530 A EP86113530 A EP 86113530A EP 86113530 A EP86113530 A EP 86113530A EP 0218187 A2 EP0218187 A2 EP 0218187A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- grinding wheel
- drive
- grinding wheels
- nature
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 12
- 229910052582 BN Inorganic materials 0.000 abstract description 11
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 abstract description 11
- 239000010432 diamond Substances 0.000 abstract description 7
- 229910003460 diamond Inorganic materials 0.000 abstract description 7
- 239000000945 filler Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
-
- 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
-
- 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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
Definitions
- the invention relates to a method and an arrangement for controlling the drive of various types of grinding wheels used one after the other.
- the base body In this type of grinding wheel, the base body generally consists of metal, in particular of Stal, aluminum or bronze, or of a metal powder / phend resin molding compound or of a phenolic resin with non-metallic fillers.
- the object of the invention is to provide a method and an arrangement for controlling the drive of a grinding spindle depending on the nature of the of several different types of grinding wheels each used. To solve this, it is provided that the nature of the grinding wheel is scanned with a signal transmitter and put into a data memory which controls the drive of the grinding wheel or its grinding spindle according to predetermined data.
- the optimal data for the quality of the grinding wheel are called up from a data block available in a numerical memory of the drive machine and entered into the machine control.
- the grinding wheel is scanned by a sensor with regard to its composition or material properties or for a geometric identifier after or before reaching its working position and the result of the scanning is used as a decision-making aid for retrieving the grinding parameters from the machine processor.
- Different optimal grinding conditions apply to both grinding wheels 2 and 3.
- disc 3 with cubic-crystalline boron nitride a peripheral speed of 80 m / s has been found to be optimal; when using the conventional grinding wheel 2, a peripheral speed of 45 m / s.
- a signal transmitter 5 scans the respective grinding wheel with a sensor 5 'or a sensing element 5' in order to determine whether the base body contains metallic components. This is done by an inductive signal generator 5. If correspond If this is the case, that is to say if a grinding wheel 3 with cubic-crystalline boron nitride is used, the grinding coating of which is arranged on a metallic base body, the drive machine 7 switches on the corresponding peripheral speed by control via the data memory 6, that is to say to a peripheral speed corresponding to the arrow 11 in the size of 80 m / s and, if appropriate, additionally the optimal feed and feed speed of the grinding wheel 3 relative to the tool 12.
- the peripheral speed is 45 m / s switched.
- the control provided can be implemented by using a signal transmitter 5 with an optical sensor 5 '.
- a pane 2 is provided with a marking 8 or a reflective layer 8, which can be designed, for example, in the manner of a stanol section, which sends a corresponding signal into the data memory 6 via the optical sensor 5 ' Provides data provision.
- a special geometry of the grinding wheel in the area of the sensor 5 ' can be designed such that different signals are emitted.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Gegenstand der Neuentwicklung bildet ein Verfahren und eine Anordnung zur Steuerung des Antriebes verschiedenartiger zum Einsatz kommender Schleifscheiben (2, 3). Für konventionelle Schleifscheiben und solche mit kubisch-kristallinem Bornitrid und Diamant bestehen unterschiedliche Einsatzforderungen bzw. Einsatzmöglichkeiten hinsichtlich der Umfangsgeschwindigkeit. Außerdem sind verschiedene Möglichkeiten gegeben hinsichtlich der Vorschubgeschwindigkeit und der Zustellgeschwindigkeit der Schleifscheiben. Um den Antrieb einer Schleifspindel bzw. die Antriebe zur Steuerung der sonstigen Schleifbedingungen in Abhängigkeit von der Beschaffenheit verschiedener Schleifscheiben zu steuern, ist vorgesehen, die Beschaffenheit der einzelnen Schleifscheiben (2, 3) mit einem Signalgeber (5, 5') abzutasten und in einem Datenspeicher (6) aufzunehmen, der den Antrieb (7) der Schleifscheibe steuert. Das Abtasten der Schleifscheibe (2, 3) kann induktiv oder optisch erfolgen. Die Beschaffenheit der Schleifscheibe (2, 3) läßt sich bei ihrem Einfahren in ihre Arbeitsstellung abtasten. Der Antrieb (7) der Schleifscheibenspindel (1) ist dafür mit einem Abtastorgan für die Beschaffenheit der Schleifscheibe (2, 3) versehen, wobei es sich um einen Sensor (5') handeln kann, mit dem eine Markierung (8) der Schleifscheibe (2, 3) abzutasten ist.The subject of the new development is a method and an arrangement for controlling the drive of various types of grinding wheels used (2, 3). For conventional grinding wheels and those with cubic-crystalline boron nitride and diamond, there are different application requirements or application options with regard to the peripheral speed. There are also various options with regard to the feed speed and the feed speed of the grinding wheels. In order to control the drive of a grinding spindle or the drives for controlling the other grinding conditions depending on the nature of different grinding wheels, it is provided to sense the nature of the individual grinding wheels (2, 3) with a signal transmitter (5, 5 ') and in one Record data memory (6) that controls the drive (7) of the grinding wheel. The grinding wheel (2, 3) can be scanned inductively or optically. The nature of the grinding wheel (2, 3) can be sensed when it is moved into its working position. The drive (7) of the grinding wheel spindle (1) is provided with a sensing element for the quality of the grinding wheel (2, 3), which can be a sensor (5 ') with which a marking (8) of the grinding wheel ( 2, 3) is to be scanned.
Description
Die Erfindung betrifft ein Verfahren und eine Anordnung zur Steuerung des Antriebes verschiedenartiger nacheinander zum Einsatz kommender Schleifscheiben.The invention relates to a method and an arrangement for controlling the drive of various types of grinding wheels used one after the other.
In der Schleiftechnik werden auf ein und derselben Maschine Schleifscheiben verschiedener Art eingesetzt. Bei diesen Schleifscheiben handelt es sich entweder um sogenannte konventionelle Schleifscheiben mit Korund oder Siliziumkarbid in keramischer oder bakelitischer Bindung oder um Schleifscheiben mit Diamant oder kubisch-kristallinem Bornitrid. Schleifscheiben mit Diamant oder kubisch-kristallinem Bornitrid sind grundsätz- lich anders aufgebaut als die konventio.nellen Schleifscheiben, denn bei den konventionellen Schleifscheiben besteht der gesamte Schleifscheibenkörper aus Schleifmittel und Bindung, während bei Schleifscheiben mit Diamant oder kubisch-kristallinem Bornitrid zu unterscheiden ist zwischen dem Schleifbelag einerseits, der aus dem Schleifmittel, der Bindung und gegebenenfalls Füllermaterialien besteht und andererseits dem Grundkörper, auf dem dieser Schleifbelag aufgebracht ist. Der Grundkörper besteht bei dieser Art von Schleifscheiben in der Regel aus Metall und zwar insbesondere aus Stal, Aluminium oder Bronze, oder aus einer Metallpulver-Phendharz-Preßmasse oder aus einem Phenolharz mit nichtmetallischen Füllstoffen.In grinding technology, different types of grinding wheels are used on the same machine. These grinding wheels are either so-called conventional grinding wheels with corundum or silicon carbide in a ceramic or Bakelite bond or grinding wheels with diamond or cubic-crystalline boron nitride. Abrasive discs with diamond or cubic-crystalline boron nitride are fundamentally different from conventional grinding discs, because with conventional grinding discs the entire grinding wheel body consists of abrasive and bond, while in the case of grinding wheels with diamond or cubic-crystalline boron nitride, a distinction must be made between the abrasive coating on the one hand, which consists of the abrasive, the bond and possibly filler materials, and on the other hand the base body on which this abrasive coating is applied. In this type of grinding wheel, the base body generally consists of metal, in particular of Stal, aluminum or bronze, or of a metal powder / phend resin molding compound or of a phenolic resin with non-metallic fillers.
Für konventionelle Schleifkörper bestehen Richtlinien über die maximal zulässige Umfangsgeschwindigkeit beim Schleifen. Für Schleifscheiben mit Diamant und kubisch-kristallinem Bornitrid gibt es solche Richtlinien bisher nicht. Es ist aber bekannt, daß bei Schleifscheiben mit Diamant oder kubisch-kristallinem Bornitrid die Sprenggeschwindigkeit und damit die maximal zu verwirklichende Umfangsbeschwindigkeit im Schleifprozeß von der Festigkeit des Grundkörpers abhängt. Diese Art von Schleifscheiben werden in der Praxis bereits mit Umfangsgeschwindigkeiten bis zu 150 m/s eingesetzt und die Tendenz geht zu noch höheren Umfangsgeschwindigkeiten. Bei konventionellen Schleifscheiben, insbesondere bei solchen mit keramischer Bindung, sind derartige Umfangsgeschwindigkeiten aufgrund ihres Bruchverhaltens nicht zu verwirklichen. Diese Schleifscheiben explodieren bei Umfangsgeschwindigkeiten, die für Schleifscheiben mit Diamant oder kubisch-kristallinem Bornitrid möglich sind.There are guidelines for conventional grinding wheels on the maximum permissible peripheral speed during grinding. Such guidelines have not yet existed for grinding wheels with diamond and cubic crystalline boron nitride. However, it is known that in the case of grinding wheels with diamond or cubic-crystalline boron nitride, the blasting speed and thus the maximum circumferential speed to be achieved in the grinding process depends on the strength of the base body. These types of grinding wheels are used in practice already used at peripheral speeds of up to 150 m / s and the tendency is towards even higher peripheral speeds. In conventional grinding wheels, in particular those with a ceramic bond, such peripheral speeds cannot be achieved due to their breaking behavior. These grinding wheels explode at peripheral speeds that are possible for grinding wheels with diamond or cubic-crystalline boron nitride.
Für beide genannten Schleifscheibenarten, nämlich konventionelle Schleifscheiben und solche mit kubisch-kristallinem Bornitrid bestehen somit unterschiedliche Einsatzforderungen bzw. Einsatzmöglichkeiten hinsichtlich der Umfangsgeschwindigkeiten der Schleifscheiben. Darüber hinaus bestehen aufgrund der unterschiedlichen Schleifeigenschaften der Schleifmittel unterschiedliche Forderungen und Möglichkeiten hinsichtlich anderer Schleifbedingungen nämlich insbesondere der Vorschubgeschwindigkeit und der Zustellgeschwindigkeit der Schleifscheiben.For both types of grinding wheels mentioned, namely conventional grinding wheels and those with cubic-crystalline boron nitride, there are therefore different application requirements and possible uses with regard to the peripheral speeds of the grinding wheels. In addition, due to the different grinding properties of the abrasives, there are different requirements and possibilities with regard to other grinding conditions, namely in particular the feed speed and the feed speed of the grinding wheels.
Bei Verwendung unterschiedlicher Schleifscheiben und insbesondere Schleifscheiben unterschiedlicher Schleifscheibenart auf ein und derselben Maschine müssen demzufolge unterschiedliche Einstellbedingungen berücksichtigt werden. Dies ist insbesondere dann gegeben, wenn Schleifscheiben unterschiedlicher Art auf der gleichen Schleifspindel montiert sind und durch ein Verfahren der Schleifspindel in Bezug auf die Position des Werkstückes nacheinander zum Eingriff kommen oder wenn mehrere Schleifspindeln mit unterschiedlichen Schleifscheiben nacheinander zum Eingriff kommen, wie z. B. bei mehrspindeligen Schleifmaschinen, wobei die Schleifspindeln revolverkopfförmig im Arbeitsraum der Maschine angeordnet sein können.When using different grinding wheels and in particular grinding wheels of different grinding wheel types on the same machine, different setting conditions must therefore be taken into account. This is particularly the case when grinding wheels of different types are mounted on the same grinding spindle and come into engagement one after the other by moving the grinding spindle with respect to the position of the workpiece, or when several grinding spindles with different grinding wheels come into engagement one after the other, such as e.g. B. in multi-spindle grinding machines, the grinding spindles can be arranged revolver head-shaped in the working area of the machine.
Grundsätzlich lassen sich für die Schleifscheiben verschiedener Art die optimalen Schleifbedingungen vor ihrem Einsatz feststellen. Aufgabe der Erfindung ist es, ein Verfahren und eine Anordnung zu schaffen um den Antrieb einer Schleifspindel zu steuern in Abhängigkeit von der Beschaffenheit der von mehreren verschiedenartigen Schleifscheiben jeweils zum Einsatz gelangenden Schleifscheibe. Zur Lösung dafür ist vorgesehen, daß die Beschaffenheit der Schleifscheibe mit einem Signalgeber abgetastet und in einen Datenspeicher gegeben wird, der den Antrieb der Schleifscheibe bzw. ihrer Schleifspindel nach vorgegebenen Daten steuert. Dabei werden aus einem zur Verfügung stehenden Datenblock in einem numerischen Speicher der Antriebsmaschine die für die Beschaffenheit der Schleifscheibe optimalen Daten abgerufen und der Maschinensteuerung eingegeben. Dies wird dadurch ermöglicht, daß die Schleifscheibe nach oder vor einem Erreichen ihrer Arbeitsposition von einem Sensor hinsichtlich ihrer Zusammensetzung bzw. Materialbeschaffenheit oder auf ein geometrisches Kennzeichen abgetastet wird und das Ergebnis der Abtastung als eine Entscheidungshilfe für den Abruf der Schleifparameter aus dem Maschinenprozessor genutzt wird.In principle, the optimal grinding conditions for various types of grinding wheels can be determined before they are used. The object of the invention is to provide a method and an arrangement for controlling the drive of a grinding spindle depending on the nature of the of several different types of grinding wheels each used. To solve this, it is provided that the nature of the grinding wheel is scanned with a signal transmitter and put into a data memory which controls the drive of the grinding wheel or its grinding spindle according to predetermined data. The optimal data for the quality of the grinding wheel are called up from a data block available in a numerical memory of the drive machine and entered into the machine control. This is made possible by the fact that the grinding wheel is scanned by a sensor with regard to its composition or material properties or for a geometric identifier after or before reaching its working position and the result of the scanning is used as a decision-making aid for retrieving the grinding parameters from the machine processor.
Bei einem Ausführungsbeispiel sind auf einer Schleifspindel 1 zwei Schleifscheiben 2 und 3 für die Bearbeitung eines Werkstückes 12 montiert, und zwar eine konventionelle Schleifscheibe 2 bestehend aus Korund in keramischer Bindung mit nichtmetallischen Füllstoffen sowie eine Schleifscheibe 3 mit kubisch-kristallinem Bornitrid in Phenolharzbindung mit nichtmetallischen Füllstoffen, wobei der Schleifbelag der Schleifscheibe 3 auf einem Grundkörper 4 aus Aluminium aufgebracht ist. Für beide Schleifscheiben 2 und 3 gelten unterschiedliche optimale Schleifbedingungen. Bei Verwendung der Scheibe 3 mit kubisch-kristallinem Bornitrid hat sich eine Umfangsgeschwindigkeit von 80 m/s als optimal herausgestellt; bei Verwendung der konventionellen Schleifscheibe 2 eine Umfangsgeschwindigkeit von 45 m/s.In one embodiment, there are two grinding wheels 2 and 3 on a grinding spindle 1 for machining a
Vor oder nach dem Einfahren der Schleifscheibe 3 - wie auch später der Schleifscheibe 2 - in ihre Arbeitsposition tastet ein Signalgeber 5 mit einem Sensor 5' bzw. einem Abtastorgan 5' die jeweilige Schleifscheibe ab, um festzustellen, ob der Grundkörper metallische Bestandteile enthält. Dies erfolgt durch einen induktiven Signalgeber 5. Wenn entsprechendes der Fall ist, das heißt wenn eine Schleifscheibe 3 mit kubisch-kristallinem Bornitrid zum Einsatz kommt, dessen Schleifbelag auf einem metallischen Grundkörper angeordnet ist, so schaltet die Antriebsmaschine 7 die entsprechende Umfangsgeschwindigkeit ein durch Steuerung über den Datenspeicher 6, das heißt auf eine Umfangsgeschwindigkeit entsprechend dem Pfeil 11 in der Größe von 80 m/s und gegebenenfalls zusätzlich die optimale Vorschub- und Zustellgeschwindigkeit der Schleifscheibe 3 gegenüber dem Werkzeug 12. Wird beim Abtasten festgestellt, daß der Grundkörper keine metallischen Bestandteile enthält, wird die Umfangsgeschwindigkeit auf 45 m/s geschaltet. Enthält eine Schleifscheibe keine metallischen Anteile, so läßt sich die vorgesehene Steuerung verwirklichen durch die Anwendung eines Signalgebers 5 mit optischem Sensor 5'. Dazu wird eine Scheibe 2 mit einer Markierung 8 bzw. einer reflektierenden Schicht 8 versehen, die beispielsweise in der Art eines Staniolabschnittes ausgebildet sein kann, der über den optischen Sensor 5' ein entsprechendes Signal in den Datenspeicher 6 zur Datenbereitstellung hervorruft. Stattdessen aber kann auch eine besondere Geometrie der Schleifscheibe im Bereich des Sensors 5' so gestaltet sein, daß unterschiedliche Signale abgegeben werden.Before or after the grinding wheel 3 is moved into its working position, as later also the grinding wheel 2, a
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3536129 | 1985-10-10 | ||
| DE19853536129 DE3536129A1 (en) | 1985-10-10 | 1985-10-10 | METHOD AND ARRANGEMENT FOR CONTROLLING THE DRIVE OF VARIOUS DIFFERENT TYPE OF GRINDING WHEELS TO BE USED |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0218187A2 true EP0218187A2 (en) | 1987-04-15 |
| EP0218187A3 EP0218187A3 (en) | 1987-09-09 |
| EP0218187B1 EP0218187B1 (en) | 1990-01-31 |
Family
ID=6283229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86113530A Expired - Lifetime EP0218187B1 (en) | 1985-10-10 | 1986-10-01 | Process and arrangement for the drive control of various successively operating grinding wheels |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4750298A (en) |
| EP (1) | EP0218187B1 (en) |
| DE (2) | DE3536129A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0588057A2 (en) * | 1992-09-16 | 1994-03-23 | Robert Bosch Gmbh | Method for optimizing the operation of an electric hand tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9106474U1 (en) * | 1991-05-25 | 1991-09-05 | Friedrich Busse Diamantwerkzeuge GmbH + Co., 8540 Schwabach | Tool for processing concrete or similar. |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2994994A (en) * | 1960-03-23 | 1961-08-08 | Scan O Matic Company | Grinding apparatus and the like |
| US3423883A (en) * | 1965-03-22 | 1969-01-28 | Mso Maschinen & Schleifmittelwerke Ag | Safety device for controlling the circumferential speed of grinding wheels |
| US3928827A (en) * | 1973-05-29 | 1975-12-23 | Vyzk Ustav Obrabecich Stroju | Device for the photoelectric marking and reading of tools for NC machine tools |
| US4530148A (en) * | 1981-07-02 | 1985-07-23 | L. Schuler Gmbh | Tool changing mechanism |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2287449A (en) * | 1940-11-08 | 1942-06-23 | Landis Tool Co | Wheel speed control |
| US2641875A (en) * | 1951-09-26 | 1953-06-16 | Cincinnati Milling Machine Co | Grinding wheel speed regulator |
| US3250043A (en) * | 1963-08-27 | 1966-05-10 | Finkl & Sons Co | Fail-safe speed control system for abrasive wheels |
| JPS48101151A (en) * | 1972-04-04 | 1973-12-20 | ||
| SE395844B (en) * | 1975-06-17 | 1977-08-29 | Asea Ab | PERIOD SPEED CONTROL DEVICE FOR ROTARY OBJECT |
| JPS5255093A (en) * | 1975-10-31 | 1977-05-06 | Seiko Seiki Kk | Method of controlling cuts in inner surface grinding machine |
| JPS59122209U (en) * | 1983-02-07 | 1984-08-17 | 株式会社デイスコ | Cutting machine |
| DE3315197A1 (en) * | 1983-04-27 | 1984-10-31 | Schaudt Maschinenbau Gmbh, 7000 Stuttgart | METHOD FOR DRESSING GRINDING WHEELS |
| JPS59219139A (en) * | 1983-05-27 | 1984-12-10 | Toyoda Mach Works Ltd | Center height control device in centerless grinder |
| JPS6090656A (en) * | 1983-10-20 | 1985-05-21 | Citizen Watch Co Ltd | Spindle-position correcting appratus for machine tool |
-
1985
- 1985-10-10 DE DE19853536129 patent/DE3536129A1/en not_active Withdrawn
-
1986
- 1986-10-01 EP EP86113530A patent/EP0218187B1/en not_active Expired - Lifetime
- 1986-10-01 DE DE8686113530T patent/DE3668571D1/en not_active Expired - Lifetime
- 1986-10-09 US US06/917,001 patent/US4750298A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2994994A (en) * | 1960-03-23 | 1961-08-08 | Scan O Matic Company | Grinding apparatus and the like |
| US3423883A (en) * | 1965-03-22 | 1969-01-28 | Mso Maschinen & Schleifmittelwerke Ag | Safety device for controlling the circumferential speed of grinding wheels |
| US3928827A (en) * | 1973-05-29 | 1975-12-23 | Vyzk Ustav Obrabecich Stroju | Device for the photoelectric marking and reading of tools for NC machine tools |
| US4530148A (en) * | 1981-07-02 | 1985-07-23 | L. Schuler Gmbh | Tool changing mechanism |
Non-Patent Citations (3)
| Title |
|---|
| MACHINE PRODUCTION, 27. Oktober 1976, Seiten 19-23; "Changeur automatique d'outils pour des centres d'usinage verticaux" * |
| TOOLING & PRODUCTION, Band 51, Nr. 6, September 1985, Seiten 117-121, Solon, Ohio, US; "Bar codes in manufacturing. Part 2, Uses on the shop floor" * |
| WERKSTATT UND BETRIEB, Band 118, Nr. 9, 1985, Seiten A129-A130; BALLUFF: "Identifizieren" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0588057A2 (en) * | 1992-09-16 | 1994-03-23 | Robert Bosch Gmbh | Method for optimizing the operation of an electric hand tool |
| EP0588057A3 (en) * | 1992-09-16 | 1994-11-23 | Bosch Gmbh Robert | Method for optimizing the operation of an electric hand tool. |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3536129A1 (en) | 1987-04-16 |
| US4750298A (en) | 1988-06-14 |
| EP0218187A3 (en) | 1987-09-09 |
| EP0218187B1 (en) | 1990-01-31 |
| DE3668571D1 (en) | 1990-03-08 |
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