DE102012021337B3 - Method for manufacturing transmitter wheel arrangement i.e. encoder arrangement, involves rotating wheel in direction under sensor until sensor detects defined edge of signal cource and rotational angle-aligned position of wheel to shaft - Google Patents
Method for manufacturing transmitter wheel arrangement i.e. encoder arrangement, involves rotating wheel in direction under sensor until sensor detects defined edge of signal cource and rotational angle-aligned position of wheel to shaft Download PDFInfo
- Publication number
- DE102012021337B3 DE102012021337B3 DE201210021337 DE102012021337A DE102012021337B3 DE 102012021337 B3 DE102012021337 B3 DE 102012021337B3 DE 201210021337 DE201210021337 DE 201210021337 DE 102012021337 A DE102012021337 A DE 102012021337A DE 102012021337 B3 DE102012021337 B3 DE 102012021337B3
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- Prior art keywords
- wheel
- shaft
- encoder
- circumferential direction
- arrangement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/24428—Error prevention
- G01D5/24433—Error prevention by mechanical means
- G01D5/24442—Error prevention by mechanical means by mounting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Abstract
Description
Technisches GebietTechnical area
Die Erfindung betrifft ein Verfahren zur Herstellung einer Geberradanordnung mittels eines Montagewerkzeugs, wobei die Geberradanordnung ein Geberrad mit in Umfangsrichtung verteilt angeordneten Markierungen und eine Welle umfasst, auf der das Geberrad drehfest angeordnet wird.The invention relates to a method for producing a Geberradanordnung by means of an assembly tool, wherein the Geberradanordnung comprises a transmitter wheel with distributed in the circumferential direction arranged markings and a shaft on which the encoder wheel is rotatably arranged.
Stand der TechnikState of the art
Solche Verfahren sind allgemein bekannt, zum Beispiel aus der
Für moderne Anwendungen wird es immer wichtiger, dass das Geberrad in Umfangsrichtung besonders exakt zur Welle positioniert ist, um Drehwinkel der Welle besonders exakt erfassen zu können. Die erforderlichen Genauigkeiten dafür lassen sich mit den vorbekannten Verfahren aufgrund der fertigungstechnisch bedingten Toleranzen nicht erreichen.For modern applications, it is increasingly important that the encoder wheel is positioned in the circumferential direction particularly precisely to the shaft in order to detect rotation angle of the shaft particularly accurate. The required accuracies for this can not be achieved with the previously known methods due to the production-related tolerances.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, das eingangs genannte Verfahren derart weiter zu entwickeln, dass das Geberrad der Welle in Umfangsrichtung besonders exakt drehwinkelrichtig zugeordnet ist und dass das Verfahren einfach und kostengünstig durchführbar ist.The invention has for its object to further develop the aforementioned method such that the encoder wheel of the shaft is assigned in the circumferential direction particularly accurate angle of rotation and that the method is simple and inexpensive to carry out.
Zur Lösung der Aufgabe ist ein Verfahren zur Herstellung einer Geberradanordnung mittels eines Montagewerkzeugs vorgesehen, wobei die Geberradanordnung ein Geberrad mit in Umfangsrichtung verteilt angeordneten Markierungen und eine Welle umfasst, auf der das Geberrad drehfest angeordnet wird, wobei das Geberrad in einem ersten Verfahrensschritt in Umfangsrichtung drehwinkelrichtig zur Welle positioniert und in einem zweiten Verfahrensschritt in Umfangsrichtung drehwinkelrichtig mit der Welle drehfest verbunden wird, wobei im ersten Verfahrensschritt eine Grob-Positionierung des Geberrads in Umfangsrichtung zur Welle vorgenommen wird, dadurch, dass ein Positionierungspin des Montagewerkzeugs mit einer Positionierungsausnehmung im Geberrad in Eingriff gebracht wird, wobei der Positionierungspin mit allseitigem Spiel in der Positionierungsausnehmung angeordnet ist und wobei nach der Grob-Positionierung das im Montagewerkzeug zunächst noch grob-positionierte Geberrad mit seinen Markierungen in Umfangsrichtung unter einem Magnetfeldsensor des Montagewerkzeugs hindurch gedreht wird, bis der Magnetfeldsensor eine definierte Flanke des Signalverlaufs und dadurch die drehwinkelrichtige Position des Geberrads zur Welle detektiert.To achieve the object, a method for producing a Geberradanordnung is provided by means of an assembly tool, wherein the Geberradanordnung comprises a transmitter wheel with distributed circumferentially arranged markings and a shaft on which the encoder wheel is rotatably disposed, the encoder wheel in a first step in the circumferential direction of rotation angle positioned to the shaft and rotatably connected in a circumferential direction in the second direction in the circumferential direction with the shaft, wherein in the first step, a coarse positioning of the encoder wheel in the circumferential direction is made to the shaft, characterized in that a positioning pin of the mounting tool with a positioning recess in the encoder wheel engaged is, wherein the positioning pin is arranged with all-round play in the positioning recess and wherein after the coarse positioning of the first in the assembly tool coarse-positioned donor wheel with its Markierun is rotated in the circumferential direction under a magnetic field sensor of the mounting tool through until the magnetic field sensor detects a defined edge of the waveform and thereby the rotational angle correct position of the encoder wheel to the shaft.
Hierbei ist von Vorteil, dass durch den ersten Verfahrensschritt das Geberrad und die Welle in Umfangsrichtung relativ zueinander besonders exakt und drehwinkelrichtig positioniert sind.It is advantageous that the encoder wheel and the shaft are positioned in the circumferential direction relative to each other by the first method step is particularly accurate and correct rotational angle.
Als Geberrad kann ein magnetisierter Encoderring drehfest auf der Welle angeordnet werden.As a donor wheel, a magnetized encoder ring can be arranged rotationally fixed on the shaft.
Der Encoderring ist dabei mit in Umfangsrichtung verteilt angeordneten Nord- und Südpolen versehen.The encoder ring is provided with distributed in the circumferential direction arranged north and south poles.
Als Geberrad kann alternativ ein passives mechanisches Geberrad drehfest auf der Welle angeordnet werden.Alternatively, as a donor wheel, a passive mechanical donor wheel can be rotatably mounted on the shaft.
Das passive mechanische Geberrad kann dabei mit in Umfangsrichtung mit Abstand benachbart zueinander angeordneten Zähnen versehen sein.The passive mechanical encoder wheel can be provided with circumferentially spaced apart adjacent teeth.
Fertigungstechnisch bedingte Toleranzen des Geberrads und/oder der Welle spielen dabei für die Genauigkeit der drehwinkelrichtigen Zuordnung von Geberrad und Welle zueinander praktisch keine Rolle mehr, weil die exakte Zuordnung dadurch erreicht wird, dass das zunächst noch grob-positionierte Geberrad mit seinen Markierungen, die entweder bei einem magnetisierten Encoderring durch die in Umfangsrichtung abwechselnd angeordneten Nord- und Südpole gebildet sind oder bei einem passiven mechanischen Geberrad durch die in Umfangsrichtung mit Abstand benachbart zueinander angeordneten Zähne, in Umfangsrichtung unter dem Magnetfeldsensor des Montagewerkzeugs hindurch gedreht wird, bis seine drehwinkelrichtige und exakte Position in Umfangsrichtung relativ zur Welle erreicht ist. In dieser Position wird das Geberrad im zweiten Verfahrensschritt drehfest mit der Welle verbunden, bevorzugt in axialer Richtung drehfest auf die Welle aufgepresst.Production-related tolerances of the encoder wheel and / or the wave play for the accuracy of the rotational angle correct assignment of encoder wheel and shaft to each other practically no longer because the exact assignment is achieved in that the first coarse-positioned transmitter wheel with its markers, either are formed in a magnetized encoder ring by the circumferentially arranged alternately north and south poles or in a passive mechanical encoder by the circumferentially spaced adjacent teeth, is rotated in the circumferential direction under the magnetic field sensor of the assembly tool until its correct rotational angle and exact position is reached in the circumferential direction relative to the shaft. In this position, the encoder wheel is rotatably connected in the second step with the shaft, preferably in the axial direction against rotation pressed onto the shaft.
Das Verfahren zur Herstellung einer Geberradanordnung und die Geberradanordnung selbst werden nachfolgend anhand der
Kurzbeschreibung der ZeichnungBrief description of the drawing
Diese zeigen jeweils in schematischer Darstellung:These show in a schematic representation:
Ausführung der ErfindungEmbodiment of the invention
In
Die Encoderanardnung
Die Welle
Zur Aufnahme eines Positionierungspins
Für eine möglichst exakte Detektierung des Drehwinkels der Welle
In
Definierte Flanken
In
In
Der Encoderring
In
Für eine immer weiter zunehmende Genauigkeit – z. B. der Steuerung von Verbrennungskraftmaschinen – ist es unbedingt erforderlich, dass auch die Signale, die von der Encoderanordnung
Um die gebrauchsfertige Encoderanordnung
In
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210021337 DE102012021337B3 (en) | 2012-10-12 | 2012-10-31 | Method for manufacturing transmitter wheel arrangement i.e. encoder arrangement, involves rotating wheel in direction under sensor until sensor detects defined edge of signal cource and rotational angle-aligned position of wheel to shaft |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012020047.1 | 2012-10-12 | ||
DE102012020047 | 2012-10-12 | ||
DE201210021337 DE102012021337B3 (en) | 2012-10-12 | 2012-10-31 | Method for manufacturing transmitter wheel arrangement i.e. encoder arrangement, involves rotating wheel in direction under sensor until sensor detects defined edge of signal cource and rotational angle-aligned position of wheel to shaft |
Publications (1)
Publication Number | Publication Date |
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DE102012021337B3 true DE102012021337B3 (en) | 2013-08-22 |
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DE201210021337 Active DE102012021337B3 (en) | 2012-10-12 | 2012-10-31 | Method for manufacturing transmitter wheel arrangement i.e. encoder arrangement, involves rotating wheel in direction under sensor until sensor detects defined edge of signal cource and rotational angle-aligned position of wheel to shaft |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017102147A1 (en) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Camshaft encoder wheel |
CN109084810A (en) * | 2017-06-13 | 2018-12-25 | 罗伯特·博世有限公司 | The method of sensor wheel and the turned position for determining axis |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010290A (en) * | 1990-07-19 | 1991-04-23 | General Motors Corporation | Easily installed wheel bearing sensor package |
DE19922215A1 (en) * | 1999-05-14 | 2000-11-16 | Kaco Gmbh Co | Device for measurement of rotational position and or velocity of a rotating object such as the crankshaft of an internal combustion engine has a sensor for use with a signal generator wheel that is more easily mounted and aligned |
DE10149642A1 (en) * | 2001-10-10 | 2003-04-24 | Freudenberg Carl Kg | Annular sensor housing |
-
2012
- 2012-10-31 DE DE201210021337 patent/DE102012021337B3/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010290A (en) * | 1990-07-19 | 1991-04-23 | General Motors Corporation | Easily installed wheel bearing sensor package |
DE19922215A1 (en) * | 1999-05-14 | 2000-11-16 | Kaco Gmbh Co | Device for measurement of rotational position and or velocity of a rotating object such as the crankshaft of an internal combustion engine has a sensor for use with a signal generator wheel that is more easily mounted and aligned |
DE10149642A1 (en) * | 2001-10-10 | 2003-04-24 | Freudenberg Carl Kg | Annular sensor housing |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017102147A1 (en) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Camshaft encoder wheel |
US10883854B2 (en) | 2015-12-17 | 2021-01-05 | Robert Bosch Gmbh | Camshaft sensor wheel |
CN109084810A (en) * | 2017-06-13 | 2018-12-25 | 罗伯特·博世有限公司 | The method of sensor wheel and the turned position for determining axis |
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Effective date: 20131123 |