DE202004021887U1 - Measuring device with linear guide - Google Patents
Measuring device with linear guide Download PDFInfo
- Publication number
- DE202004021887U1 DE202004021887U1 DE200420021887 DE202004021887U DE202004021887U1 DE 202004021887 U1 DE202004021887 U1 DE 202004021887U1 DE 200420021887 DE200420021887 DE 200420021887 DE 202004021887 U DE202004021887 U DE 202004021887U DE 202004021887 U1 DE202004021887 U1 DE 202004021887U1
- Authority
- DE
- Germany
- Prior art keywords
- measuring
- rollers
- guide
- profile
- guide device
- 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
- 238000005259 measurement Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 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
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0009—Guiding surfaces; Arrangements compensating for non-linearity there-of
-
- 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
- F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/02—Bearings or suspensions for moving parts
-
- 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
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Messführungseinrichtung mit Linearführung, bestehend aus einem Profilträger, welcher wenigstens eine Führungsfläche aufweist, einem Messwagen, welcher zumindest teilweise den Profilträger umfasst, wobei auf dem Profilträger ein abtastbares Messlineal angeordnet ist und auf dem Messwagen ein Sensor zur Erfassung der Ist-Position vorgesehen ist, dadurch gekennzeichnet, dass der Messwagen aus einem im Wesentlichen U-förmigen, den Profilträger umfassenden Körper besteht und an dem Messwagen wenigstens drei Laufrollen angeordnet sind, wobei wenigstens zwei Laufrollen parallel zueinander angeordnet sind, und zwar senkrecht zur Bewegungsrichtung und wobei die Laufrollen ein Laufflächenprofil aufweisen, welches mit dem Führungsprofil des Profilträgers derart korrespondiert, dass eine im Wesentlichen spielfreie Linearführung gewährleistet ist.Measuring guide device with linear guide, consisting of a profile carrier which has at least one guide surface, a measuring carriage which at least partially comprises the profile carrier, a scannable measuring ruler being arranged on the profile carrier and a sensor for detecting the actual position being provided on the measuring carriage characterized in that the measuring carriage consists of a substantially U-shaped body comprising the profile support and at least three running rollers are arranged on the measuring carriage, at least two running rollers being arranged parallel to one another, namely perpendicular to the direction of movement and wherein the running rollers have a running surface profile, which corresponds to the guide profile of the profile carrier in such a way that an essentially play-free linear guide is guaranteed.
Description
Die Erfindung betrifft eine Messführungseinrichtung mit Linearführung, bestehend aus einem Profilträger, welcher wenigstens eine Führungsfläche aufweist, einem Messwagen, welcher zumindest teilweise den Profilträger umfasst, wobei auf dem Profilträger ein abtastbares Messlineal angeordnet ist und auf dem Messwagen ein Sensor zur Erfassung der Ist-Position vorgesehen ist.The invention relates to a measuring guide device with linear guide, consisting of a profile carrier which has at least one guide surface, a measuring carriage which at least partially comprises the profile carrier, wherein on the profile carrier a scannable measuring ruler is arranged and on the measuring carriage, a sensor for detecting the actual position is provided.
Eine solche Einrichtung ist aus der
Ein Nachteil dieser Einrichtung ist darin zu sehen, dass es sich hier um Gleitführungen handelt, die sehr verschleißanfällig sind und regelmäßig nachjustiert werden müssen. Außerdem ist der Messwagen insbesondere für Anwendungen unter extremen Umwelteinflüssen hinsichtlich seiner Stabilität gefährdet.A disadvantage of this device is the fact that these are sliding guides, which are very susceptible to wear and must be readjusted regularly. In addition, the measuring car is particularly endangered for applications under extreme environmental conditions in terms of its stability.
Es ist ferner aus der
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Messführungseinrichtung zu schaffen, welche robust ist, einen einfachen Aufbau ausweist und selbst unter extremen Umweltbedingungen zuverlässig arbeitet.The invention has for its object to provide a measuring guide device, which is robust, identifies a simple structure and works reliably even under extreme environmental conditions.
Diese Aufgabe wird dadurch gelöst, dass der Messwagen aus einem im Wesentlichen U-förmigen, den Profilträger umfassenden Körper besteht und an dem Messwagen wenigstens drei Laufrollen angeordnet sind, wobei wenigstens zwei Laufrollen parallel zueinander angeordnet sind, und zwar senkrecht zur Bewegungsrichtung und wobei die Laufrollen ein Laufflächenprofil aufweisen, welches mit dem Führungsprofil des Profilträgers derart korrespondiert, dass eine nahezu spielfreie Linearführung gewährleistet ist.This object is achieved in that the measuring carriage consists of a substantially U-shaped, the profile carrier body and the measuring carriage at least three rollers are arranged, wherein at least two rollers are arranged parallel to each other, perpendicular to the direction of movement and wherein the rollers have a tread profile, which corresponds to the guide profile of the profile carrier such that a virtually backlash-free linear guide is guaranteed.
Der Vorteil der Erfindung liegt darin, dass der Messwagen ein U-förmiger Körper ist, welcher eine sehr hohe Steifigkeit aufweist und in diesem U-förmigen Körper wenigstens drei Laufrollen integriert sind. Diese Laufrollen greifen mit ihrem Laufflächenprofil in ein geeignetes Führungsprofil des Profilträgers ein. Damit wird gewährleistet, dass ein Verkanten nicht möglich ist. Die Laufrollen und das Führungsprofil sind im Wesentlichen schmutzunempfindlich, eine Justage muss aufgrund der Robustheit des Systems nicht vorgenommen werden.The advantage of the invention is that the measuring carriage is a U-shaped body, which has a very high rigidity and at least three rollers are integrated in this U-shaped body. These rollers engage with their tread pattern in a suitable guide profile of the profile carrier. This ensures that tilting is not possible. The rollers and the guide profile are essentially dirt-resistant, an adjustment need not be made due to the robustness of the system.
Bei der Anwendung von drei Laufrollen sind zwei auf einer Seite des Profilträgers angeordnet und eine dritte auf der gegenüberliegenden Seite und zwar bezogen auf die zwei ersten im Wesentlichen mittig zwissten.In the application of three rollers, two are arranged on one side of the profile carrier and a third on the opposite side and with respect to the two first substantially centrally zwissten.
Gemäß einer Weiterbildung der Erfindung sind vier Laufrollen vorgesehen. Dabei befinden sich jeweils zwei auf einer Seite des Profilträgers. Die Laufrollen, welche sich gegenüber stehen sind hinsichtlich ihrer Achsen parallel ausgerichtet. Die Achsen befinden sich bezogen auf die Laufrichtung in einer rechtwinklig zur Laufachse verlaufenden Ebene.According to one embodiment of the invention, four rollers are provided. There are two each on one side of the profile carrier. The rollers, which are opposite to each other are aligned in parallel with respect to their axes. The axes are located in relation to the running direction in a direction perpendicular to the axis running plane.
Weiterbildungsgemäß sind die Laufrollen mit Gleitlagern ausgerüstet, dies bedeutet, dass an dem Messwagen Aufnahmeschlitze für die Laufrollen vorgesehen sind. Mit einem Achsstift wird jede Laufrolle in einem Aufnahmeschlitz aufgenommen und gelagert. Auch die Verwendung von Gleitlagern trägt zur hohen Robustheit des gesamten Systems bei.According to training, the rollers are equipped with plain bearings, this means that are provided on the measuring carriage receiving slots for the rollers. With an axle pin, each roller is received and stored in a receiving slot. The use of plain bearings also contributes to the high robustness of the entire system.
Gemäß einer Ausgestaltung der Laufrollen sind diese mit Seitenwangen versehen. Diese Seitenwangen stützen sich in den Aufnahmeschlitzen, bzw. in den Wandungen der Aufnahmeschlitze ab, wobei ein geringes Spiel zwischen Seitenwange und Aufnahmeschlitz für die Messgenauigkeit unerheblich ist.According to one embodiment of the rollers they are provided with side cheeks. These side cheeks are based in the receiving slots, or in the walls of the receiving slots, with a small clearance between the side wall and receiving slot for the measurement accuracy is irrelevant.
Die Abtastung der Position des Messwagens, bzw. die Erfassung des Weges, welcher der Messwagen auf dem Profilträger zurücklegt, erfolgt über einen Inkrementalgeber oder über einen Absolutgeber, in bevorzugter Weise mit einem magnetisch wirkenden Messband, welches an dem Profilträger befestigt ist.The scanning of the position of the measuring carriage, or the detection of the path, which covers the measuring carriage on the profile carrier, via an incremental encoder or via an absolute encoder, preferably with a magnetically acting measuring tape, which is attached to the profile carrier.
Ferner besteht auch die Möglichkeit, ein optisch wirksames Messband zu befestigen und über einen optischen Sensor die Position, bzw. die Längsverschiebung zu ermitteln.Furthermore, it is also possible to attach an optically effective measuring tape and to determine the position or the longitudinal displacement via an optical sensor.
Ausserdem besteht auch die Möglichkeit, die Position des Messwagens über Ultraschall-Laserstrahl oder andere geeignete Messsignalgeber, bzw. -empfänger zu ermitteln.In addition, it is also possible to determine the position of the measuring carriage via ultrasonic laser beam or other suitable measuring signal transmitter, or receiver.
Ein Anzeigegerät ist unmittelbar auf dem Messwagen oder von diesem entfernt stationär, an einem Bedienpult oder Monitor angeordnet.A display device is located directly on the measuring carriage or stationary away from it, arranged on a control panel or monitor.
Diese und weitere Merkmale der Erfindung gehen nicht nur aus den Ansprüchen, sondern auch aus der Beschreibung und der Zeichnung hervor, wobei auch für diese Merkmale einzeln oder in Kombination mit den in den Ansprüchen genannten Merkmalen Schutz beansprucht wird.These and other features of the invention are apparent not only from the claims, but also from the description and the drawings, which is claimed for these features individually or in combination with the features mentioned in the claims protection.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment.
Es zeigt:It shows:
Die Darstellung gemäß
Neben einer hohen Messgenauigkeit zeichnet sich das Gerät durch eine extreme Robustheit und Unempfindlichkeit gegenüber Umwelteinflüssen aus. Bei einer entsprechenden Positionierung, d. h. eine hängende oder liegende Anordnung, gelangt kein Schmutz in die Führungsnuten
An dem Messwagen
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 the documents listed by the applicant has been generated automatically and is included solely 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 PatentliteraturCited patent literature
- DE 10215188 [0002] DE 10215188 [0002]
- DE 10214426 [0004] DE 10214426 [0004]
- DE 19916264 [0005] DE 19916264 [0005]
- DE 19713688 [0006] DE19713688 [0006]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420021887 DE202004021887U1 (en) | 2004-06-03 | 2004-06-03 | Measuring device with linear guide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200420021887 DE202004021887U1 (en) | 2004-06-03 | 2004-06-03 | Measuring device with linear guide |
Publications (1)
Publication Number | Publication Date |
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DE202004021887U1 true DE202004021887U1 (en) | 2012-03-23 |
Family
ID=45999188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE200420021887 Expired - Lifetime DE202004021887U1 (en) | 2004-06-03 | 2004-06-03 | Measuring device with linear guide |
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DE (1) | DE202004021887U1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19713688A1 (en) | 1997-04-03 | 1998-10-08 | Schaeffler Waelzlager Ohg | Roller bearing with unit for measuring path to be covered by moving roller bearing part |
DE19916264A1 (en) | 1999-03-27 | 2000-09-28 | Helios Mestechnik Gmbh & Co Kg | Guide system for length measuring instruments has guiding carriage with connectable measuring carriage arranged on guide rails in internal region of guide column |
DE10214426A1 (en) | 2002-03-30 | 2003-10-09 | Heidenhain Gmbh Dr Johannes | Linear encoder for use with linear guide assembly, includes scale attaching element whose stop surfaces are arranged perpendicular to longitudinal direction of guide rail, to align scale in parallel to rail |
DE10215188A1 (en) | 2002-04-05 | 2003-10-30 | Carl Mahr Holding Gmbh | Length measurement instrument, e.g. for height measurement, has a guide body made from an enclosed extruded profile with grooves and ridges on which a measurement carriage is mounted so that it can be accurately displaced |
-
2004
- 2004-06-03 DE DE200420021887 patent/DE202004021887U1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19713688A1 (en) | 1997-04-03 | 1998-10-08 | Schaeffler Waelzlager Ohg | Roller bearing with unit for measuring path to be covered by moving roller bearing part |
DE19916264A1 (en) | 1999-03-27 | 2000-09-28 | Helios Mestechnik Gmbh & Co Kg | Guide system for length measuring instruments has guiding carriage with connectable measuring carriage arranged on guide rails in internal region of guide column |
DE10214426A1 (en) | 2002-03-30 | 2003-10-09 | Heidenhain Gmbh Dr Johannes | Linear encoder for use with linear guide assembly, includes scale attaching element whose stop surfaces are arranged perpendicular to longitudinal direction of guide rail, to align scale in parallel to rail |
DE10215188A1 (en) | 2002-04-05 | 2003-10-30 | Carl Mahr Holding Gmbh | Length measurement instrument, e.g. for height measurement, has a guide body made from an enclosed extruded profile with grooves and ridges on which a measurement carriage is mounted so that it can be accurately displaced |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20120516 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20121002 |