DE102018128025A1 - Linear guide - Google Patents
Linear guide Download PDFInfo
- Publication number
- DE102018128025A1 DE102018128025A1 DE102018128025.4A DE102018128025A DE102018128025A1 DE 102018128025 A1 DE102018128025 A1 DE 102018128025A1 DE 102018128025 A DE102018128025 A DE 102018128025A DE 102018128025 A1 DE102018128025 A1 DE 102018128025A1
- Authority
- DE
- Germany
- Prior art keywords
- guide rail
- guide
- material measures
- track
- 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- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 27
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/065—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
-
- 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
- G01D5/24438—Special design of the sensing element or scale
-
- 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
- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
- G01D5/34753—Carriages; Driving or coupling means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Linearführung, mit einem auf einer Führungsschiene längsverschieblich angeordneten Führungswagen (1), und mit einer zur Bestimmung einer Position des Führungswagens (1) auf der Führungsschiene (2) vorgesehenen Längenmesseinrichtung (5), die zwei in Längsrichtung der Führungsschiene (2) hintereinander angeordnete Messköpfe (6) aufweist sowie eine den beiden Messköpfen (6) gemeinsam zugeordnete Spur (7) auf der Führungsschiene (2). Die Spur (7) weist eine Vielzahl von hintereinander angeordneten Maßverkörperungen (9) auf, die zusätzlich zu ihren Positionszeichen (10) jeweils eine Kennung (12) tragen, die von allen weiteren Kennungen (12) der anderen Maßverkörperungen (9) verschieden ist.Linear guide, with a guide carriage (1) arranged to be longitudinally displaceable on a guide rail, and with a length measuring device (5) provided for determining a position of the guide carriage (1) on the guide rail (2), the two measuring heads arranged one behind the other in the longitudinal direction of the guide rail (2) (6) and a track (7) on the guide rail (2) which is assigned to the two measuring heads (6). The track (7) has a large number of material measures (9) arranged one behind the other, each of which, in addition to their position symbols (10), has an identifier (12) which is different from all other identifiers (12) of the other material measures (9).
Description
Die vorliegende Erfindung betrifft eine mit einer Längenmesseinrichtung ausgerüstete Linearführung, mit einem auf einer Führungsschiene längsverschieblich angeordneten Führungswagen.The present invention relates to a linear guide equipped with a length measuring device, with a guide carriage arranged to be longitudinally displaceable on a guide rail.
Aus
Aufgabe der vorliegenden Erfindung war es, eine Linearführung gemäß den Merkmalen des Oberbegriffs des Anspruchs 1 anzugeben, die eine zuverlässig arbeitende sowie günstig herzustellende Längenmesseinrichtung ermöglicht.The object of the present invention was to provide a linear guide according to the features of the preamble of
Erfindungsgemäß wurde diese Aufgabe durch die Linearführung gemäß Anspruch 1 gelöst.
Diese Linearführung ist mit einem auf einer Führungsschiene längsverschieblich angeordneten Führungswagen versehen, und mit einer zur Bestimmung einer Position des Führungswagens auf der Führungsschiene vorgesehenen Längenmesseinrichtung, die zwei in Längsrichtung der Führungsschiene hintereinander angeordnete Messköpfe aufweist. An der Führungsschiene ist eine den beiden Messköpfen gemeinsam zugeordnete Spur ausgebildet, die eine Vielzahl von hintereinander angeordneten Maßverkörperungen aufweist, die zusätzlich zu ihren Positionszeichen jeweils eine Kennung tragen, die von allen weiteren Kennungen der anderen Maßverkörperungen verschieden ist. Die Messköpfe sind mit dem Wagen verfahrbar und können in bekannter Weise am Führungswagen angeordnet seinAccording to the invention, this object was achieved by the linear guide according to
This linear guide is provided with a guide carriage arranged to be longitudinally displaceable on a guide rail, and with a length measuring device provided for determining a position of the guide carriage on the guide rail, which has two measuring heads arranged one behind the other in the longitudinal direction of the guide rail. On the guide rail there is a track which is assigned to the two measuring heads and which has a large number of material measures arranged one behind the other, each of which, in addition to its position markings, has an identifier which is different from all other identifiers of the other material measures. The measuring heads can be moved with the carriage and can be arranged on the carriage in a known manner
Der eine Messkopf erfasst über die Kennung der jeweiligen Maßverkörperung die Position des Führungswagens, also an welcher Maßverkörperung sich der Führungswagen befindet. Die Reihung der Maßverkörperungen entlang der Spur kann beispielsweise mit einer auf-oder absteigenden Kennungsfolge vorgegeben sein.One measuring head detects the position of the guide carriage, that is to say the measure measure on which the guide carriage is located, via the identifier of the respective measuring standard. The order of the material measures along the track can be specified, for example, with an ascending or descending sequence of identifiers.
Der andere Messkopf erfasst über die Positionszeichen eine eindeutige Position des Führungswagend an dieser Maßverkörperung.The other measuring head uses the position signs to detect a clear position of the guide carriage on this measuring standard.
Die so erhaltenen Informationen ermöglichen demzufolge eine eindeutige Positionsbestimmung des Führungswagens an der Führungsschiene.The information obtained in this way consequently enables the guide carriage to be clearly identified on the guide rail.
Die Messköpfe können in Richtung der Schienenachse einen axialen Abstand zueinander aufweisen, der größer ist als ein Abstand von zwei einander benachbart angeordneten Maßverkörperungen. Die Maßverkörperungen können auch auf Stoß verlegt sein. Im Fall eines Abstandes zwischen zwei Maßverkörperungen kann dennoch eine einewandfreie Positionsbestimmung erfolgen: beide Messköpfe erfassen jeweils einen Wechsel von der einen auf eine benachbarte Maßverkörperung. Da der axiale Abstand der beiden Messköpfe zueinander bekannt ist, läßt sich die Position des Führungswagens eindeutig ermitteln.The measuring heads can have an axial distance from one another in the direction of the rail axis which is greater than a distance from two measuring standards arranged adjacent to one another. The material measures can also be laid in a butt joint. In the case of a distance between two material measures, an accurate position determination can nevertheless be carried out: both measuring heads each record a change from one to an adjacent material measure. Since the axial distance between the two measuring heads is known, the position of the guide carriage can be clearly determined.
Die Positionszeichen können an allen Maßverkörperungen gleich sein und so die Herstellung vereinfachen. Die Positionszeichen können durch inkrementelle und/oder absolute Kodierung bereitgesetellt werden. Beispielsweise können Positionszeichen in Form einer Teilung in mm Abständen vorgesehen sein, oder eine binäre Darstellung von absoluten Positionszeichen.The position symbols can be the same on all measuring standards and thus simplify production. The position characters can be provided by incremental and / or absolute coding. For example, position signs can be provided in the form of a division in mm intervals, or a binary representation of absolute position signs.
Die Kennungen jedoch sind alle verschieden voneinander, wobei die Maßverkörperungen in einer vorgegebenen Reihung entlang der Spur angeordnet sind. Die Kennungen können am Anfang und am Ende einer Maßverkörperung angebracht sein, oder auch durchlaufend über die gesamte Erstreckung der Maßverkörperung.However, the identifiers are all different from one another, with the material measures being arranged in a predetermined row along the track. The identifiers can be attached at the beginning and at the end of a material measure, or also continuously over the entire extent of the material measure.
Die Maßverkörperungen können durch Bandstücke gebildet sind, die an der Führungsschiene befestigt sind. Als Ausgangsmaterial kann beispielsweise ein Stahlband dienen, von dem die Bandstücke abgelängt werden.The material measures can be formed by tape pieces that are attached to the guide rail. A steel strip, from which the strip pieces are cut to length, can serve as the starting material, for example.
Der Führungswagen kann die Messköpfe tragen und die Führungsschiene mit zwei Schenkeln umgreifen, wobei die Führungsschiene an einer ihrer beiden Längsseiten mit der Spur versehen ist.The guide carriage can carry the measuring heads and encompass the guide rail with two legs, the guide rail being provided with the track on one of its two long sides.
Nachstehend wird die Erfindung anhand eines in insgesamt vier Figuren abgebildeten Ausführungsbeispielen näher erläutert. Es zeigen:
-
1 eine Ansicht einer ersten Linearführung, -
2 einen Querschnitt durch die Linearführung aus1 , -
3 eine Ausführung einer Längenmesseinrichtung, basierend auf einer Linearführung gemäß1 , -
4 einen Ausschnitt aus5 mit schematisch angedeuteten Spuren der Längenmesseinrichtung.
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1 a view of a first linear guide, -
2nd a cross section through thelinear guide 1 , -
3rd an embodiment of a length measuring device based on alinear guide 1 , -
4th a cut out5 with schematically indicated traces of the length measuring device.
Die
Eine Längenmesseinrichtung
An der einen Längsseite der Führungsschiene
Die Maßverkörperungen
Die Maßverkörperungen
Wenn die Messköpfe
BezugszeichenlisteReference symbol list
- 11
- FührungswagenCarriage
- 22nd
- FührungsschieneGuide rail
- 33rd
- Schenkelleg
- 44th
- Rückenmove
- 55
- LängenmesseinrichtungLength measuring device
- 66
- MesskopfMeasuring head
- 77
- Spurtrack
- 88th
- ----- -----
- 99
- MaßverkörperungMaterial measure
- 1010th
- PositionszeichenPosition sign
- 1111
- ------ ------
- 1212
- KennungIdentifier
- 1313
- BandstückPiece of tape
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturPatent literature cited
- EP 2034201 B1 [0002]EP 2034201 B1 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018128025.4A DE102018128025A1 (en) | 2018-11-09 | 2018-11-09 | Linear guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018128025.4A DE102018128025A1 (en) | 2018-11-09 | 2018-11-09 | Linear guide |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018128025A1 true DE102018128025A1 (en) | 2020-05-14 |
Family
ID=70468778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018128025.4A Withdrawn DE102018128025A1 (en) | 2018-11-09 | 2018-11-09 | Linear guide |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102018128025A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2034201B1 (en) | 2007-09-07 | 2013-08-28 | Robert Bosch GmbH | Guide rail with absolute measuring scale |
-
2018
- 2018-11-09 DE DE102018128025.4A patent/DE102018128025A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2034201B1 (en) | 2007-09-07 | 2013-08-28 | Robert Bosch GmbH | Guide rail with absolute measuring scale |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |