DE2207374C3 - Cover device for measuring systems - Google Patents

Cover device for measuring systems

Info

Publication number
DE2207374C3
DE2207374C3 DE19722207374 DE2207374A DE2207374C3 DE 2207374 C3 DE2207374 C3 DE 2207374C3 DE 19722207374 DE19722207374 DE 19722207374 DE 2207374 A DE2207374 A DE 2207374A DE 2207374 C3 DE2207374 C3 DE 2207374C3
Authority
DE
Germany
Prior art keywords
scanning device
measuring
graduation
measuring systems
metal foil
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
Application number
DE19722207374
Other languages
German (de)
Other versions
DE2207374B2 (en
DE2207374A1 (en
Inventor
Alfons Dipl.-Ing. 8225 Traunreut Ernst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Priority to DE19722207374 priority Critical patent/DE2207374C3/en
Publication of DE2207374A1 publication Critical patent/DE2207374A1/en
Publication of DE2207374B2 publication Critical patent/DE2207374B2/en
Application granted granted Critical
Publication of DE2207374C3 publication Critical patent/DE2207374C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/085—Flexible coverings, e.g. coiled-up belts
    • 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
    • G01D5/34761—Protection devices, e.g. caps; Blowing devices

Description

Die Erfindung betrifft eine Abdeckungseinrichtung für Meßsysteme, deren Abtasteinrichtung relativ zu einer Meßteilung verschiebbar ist, wobei die Meßteilung gegen äußere Einflüsse abgeschirmt ist.The invention relates to a cover device for measuring systems, the scanning device relative to a measuring graduation is displaceable, wherein the measuring graduation is shielded from external influences.

Die Verwendung dünner Abdeckungsschichten zum Schutz von Meßinstrumenten bzw. deren Skalen ist bereits aus der DE-PS 9 21 719 und der CH-PS 3 85 502 bekanntgeworden.The use of thin cover layers to protect measuring instruments or their scales is already known from DE-PS 9 21 719 and CH-PS 3 85 502.

Der Erfindung liegt die Aufgabe zugrunde, eine Abdeckungseinrichtung für Meßsysteme zu schaffen, die baulich einfach gestaltet ist und dabei eine gute Abschirmung gegen äußere Einflüsse gewährleistet, wenig Raum beansprucht und sich durch eine kompakte Bauweise sowie leichte Montage auszeichnet.The invention has for its object to provide a cover device for measuring systems that is structurally simple and ensures good shielding against external influences, takes up little space and is characterized by a compact design and easy assembly.

Die Erfindung löst die gestellte Aufgabe dadurch, daß die Meßteilung und zumindest ein Teil der Abtasteinrichtung in einem über seine gesamte Länge einen Spalt aufweisenden Hohlkörper eingebracht ist, der mittels einer zum Abschirmen an sich bekannten flexiblen Metallfolie abgedeckt ist, die über die Abtasteinrichtung gleitet und im gesamten Verschiebebereich der Abtasteinrichtung von am Hohlkörper angebrachten Magneten festgehalten wird.The invention solves the problem in that the measuring graduation and at least part of the scanning device is introduced into a hollow body having a gap over its entire length, which by means of a flexible metal foil known per se for shielding is covered over the scanning device slides and in the entire displacement range of the scanning device attached to the hollow body Magnet is held in place.

Die Metallfolie wird dabei zweckmäßig von Magnetleisten gehalten, die am Trägerkörper für die Meßteilung angebracht sind.The metal foil is expediently held by magnetic strips that are attached to the support body for the measuring graduation are attached.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt Es zeigtIn the drawing, an embodiment of the invention is shown

F i g. 1 eine Seitenansicht der erfindungsgemäßen Abdeckung,F i g. 1 a side view of the cover according to the invention,

F i g. 2 einen Schnitt nach der Linie H-II der Fig. 1.F i g. 2 shows a section along the line H-II in FIG. 1.

Die Meßteilung 3, die im Ausführungsbeispiel ein optisches Reflexionsgitter ist, wird von einer lichtelektrischen Abtasteinrichtung i abgetastet. Als Träger für die Meßteilung 3 dient ein U-Profil 4, das mittels einer Metallfolie 2 abgedeckt ist. Die Metallfolie 2 wird von Magnetleisten 7, 8 gehalten, die am Trägerkörper 4 befestigt sind.The measuring graduation 3, which is an optical reflection grating in the exemplary embodiment, is provided by a photoelectric Scanning device i scanned. As a carrier for the graduation 3 is a U-profile 4, which by means of a Metal foil 2 is covered. The metal foil 2 is held by magnetic strips 7, 8 which are attached to the carrier body 4 are attached.

Die Abtasteinrichtung t stützt sich über reibungsarme Kunststoff-Glcitschienen 5,6 auf den Magnetleisten 7,8 ab. Die Kunststoff-Gleitschienen 5, 6 sind an einer metallischen Fläche der Abtasteinrichtung 1 befestigt, die von den Magnetleisten 7, 8 angezogen wird. Auf diese Weise wird ein Abheben der Abtasteinrichtung 1 von der Führungsbahn verhindert. Beim Verschieben der Abtasteinrichtung 1, das mittels des Mitnehmers 9 erfolgt, wird die Metallfolie 2 von den Magnetleisten 7,8 abgehoben.Dabei umschließt die Metallfolie 2 die Abtasteinrichtung 1, so daß eine wirkungsvolle Abdekkung der Meßteilung 3 gewährleistet ist. ReibungsarmeThe scanning device t is supported by low-friction plastic sliding rails 5, 6 on the magnetic strips 7, 8 away. The plastic slide rails 5, 6 are attached to a metallic surface of the scanning device 1, which is attracted by the magnetic strips 7, 8. In this way, a lifting of the scanning device 1 prevented by the guideway. When moving the scanning device 1, which is effected by means of the driver 9 occurs, the metal foil 2 is lifted from the magnetic strips 7,8. The metal foil 2 encloses the Scanning device 1, so that an effective covering of the measuring graduation 3 is guaranteed. Low friction

J5 Kunststoff-Gleitschienen 10 an der Abtasteinrichtung 1 ermöglichen eine leichtgängige Verschiebung derselben. J5 plastic slide rails 10 on the scanning device 1 enable smooth movement of the same.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Abdeckungseinrichtung für Meßsysteme, deren Abtasteinrichtung relativ zu einer Meßteilung verschiebbar ist, wobei die Meßteilung gegen äußere Einflüsse abgeschirmt ist, dadurch gekennzeichnet, daß die Meßteilung (3) und zumindest ein Teil der Abtasteinrichtung (1) in einem über seine gesamte Länge einen Spalt aufweisenden Hohlkörper (4) eingebracht ist, der mittels einer zum Abschirmen an sich bekannten flexiblen Metallfolie (2) abgedeckt ist, die über die Abtasteinrichtung (1) gleitet und im gesamten Verschiebebereich der Abtasteinrichtung (1) von am Hohlkörper (4) angebrachten Magneten (7,8) festgehalten wird.Covering device for measuring systems, the scanning device of which is relative to a measuring graduation is displaceable, the graduation being shielded from external influences, characterized in that that the measuring graduation (3) and at least part of the scanning device (1) in one over its entire length a gap having hollow body (4) is introduced, which by means of a for Shielding known flexible metal foil (2) is covered over the scanning device (1) slides and in the entire displacement range of the scanning device (1) on the hollow body (4) attached magnets (7,8) is held.
DE19722207374 1972-02-17 1972-02-17 Cover device for measuring systems Expired DE2207374C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722207374 DE2207374C3 (en) 1972-02-17 1972-02-17 Cover device for measuring systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722207374 DE2207374C3 (en) 1972-02-17 1972-02-17 Cover device for measuring systems

Publications (3)

Publication Number Publication Date
DE2207374A1 DE2207374A1 (en) 1973-08-30
DE2207374B2 DE2207374B2 (en) 1978-01-26
DE2207374C3 true DE2207374C3 (en) 1978-09-28

Family

ID=5836179

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722207374 Expired DE2207374C3 (en) 1972-02-17 1972-02-17 Cover device for measuring systems

Country Status (1)

Country Link
DE (1) DE2207374C3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049743A2 (en) * 1980-10-14 1982-04-21 Dr. Johannes Heidenhain GmbH Position measuring device
DE3332044A1 (en) * 1983-09-06 1985-04-04 Rotring-Werke Riepe Kg, 2000 Hamburg DEVICE FOR COVERING AN ANNUAL HOUSING OPENING
DE3415164A1 (en) * 1984-04-21 1985-10-24 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Encapsulated length-measuring or angle-measuring device
DE3429644C1 (en) * 1984-08-11 1986-02-13 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Position measuring device
DE4216825A1 (en) * 1992-05-21 1993-12-02 Zeiss Carl Jena Gmbh Encapsulated translational measurement system for machine tool position measurement - has sensor with drive pin sealed by sprung metal bands and additional sealing unit having elastic metal sealing pieces
DE4404490A1 (en) * 1994-02-12 1995-08-17 Heidenhain Gmbh Dr Johannes Encapsulated length measurement device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836725B2 (en) * 1978-07-27 1983-08-11 株式会社三豊製作所 Optical displacement measuring device
FR2604382B1 (en) * 1986-09-25 1994-04-01 Micro Controle TROLLEY ASSEMBLY COMPRISING DRIVING MEANS
DE4311960C2 (en) * 1993-04-10 1996-08-22 Heidenhain Gmbh Dr Johannes Encapsulated length measuring device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049743A2 (en) * 1980-10-14 1982-04-21 Dr. Johannes Heidenhain GmbH Position measuring device
EP0049743B1 (en) * 1980-10-14 1985-07-17 Dr. Johannes Heidenhain GmbH Position measuring device
DE3332044A1 (en) * 1983-09-06 1985-04-04 Rotring-Werke Riepe Kg, 2000 Hamburg DEVICE FOR COVERING AN ANNUAL HOUSING OPENING
DE3415164A1 (en) * 1984-04-21 1985-10-24 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Encapsulated length-measuring or angle-measuring device
DE3429644C1 (en) * 1984-08-11 1986-02-13 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Position measuring device
DE4216825A1 (en) * 1992-05-21 1993-12-02 Zeiss Carl Jena Gmbh Encapsulated translational measurement system for machine tool position measurement - has sensor with drive pin sealed by sprung metal bands and additional sealing unit having elastic metal sealing pieces
DE4404490A1 (en) * 1994-02-12 1995-08-17 Heidenhain Gmbh Dr Johannes Encapsulated length measurement device

Also Published As

Publication number Publication date
DE2207374B2 (en) 1978-01-26
DE2207374A1 (en) 1973-08-30

Similar Documents

Publication Publication Date Title
DE69818256T2 (en) MAGNETIC POSITION SENSOR
DE2207374C3 (en) Cover device for measuring systems
DE2520581A1 (en) ARRANGEMENT FOR ERASABLE RECORDING OF MEASURED SIZES
DE938937C (en) Apparatus for measuring and registering the changing stratification limit of mixed liquids
DE3244616C2 (en) Device for measuring feed movements
DE2259041A1 (en) WINDOW GUIDE
DE3038716C2 (en) Position measuring device
EP1182767B1 (en) Linear guide
DE102009054337A1 (en) Device for detecting length and/or position of e.g. lift container, has supporting strip whose lateral strip area is uncovered by longitudinal strip, and slide unit that acts together with strip area to guide supporting strip
DE2205147B2 (en) Device for guiding a height-adjustable curved window of a motor vehicle
DE102018213172A1 (en) Rail slider for a window regulator of a motor vehicle
DE1548871A1 (en) Arrangement for measuring lengths
DE2707082C3 (en) Digital optical display device
EP0144586B1 (en) Encapsulated device for measuring length or angle
DE1719511C3 (en) Device for crucible-free zone melting of a crystalline rod, in particular a semiconductor rod
DE3146187A1 (en) Flexible conductor loop pick-off rail consisting of plastic
DE4404490C2 (en) Encapsulated length measuring device
DE10039915A1 (en) Linear guide with a vehicle supported on a linear rail has a positioning strip in the form of an Eddy current sheet arranged parallel to the rail that works in conjunction with a measurement head and an exciter block
DE20022872U1 (en) Sun protection device
CH656456A5 (en) LENGTH MEASURING DEVICE.
DE4422251C2 (en) Arrangement for fixing a ferrite body in a microwave housing
DE4311960C2 (en) Encapsulated length measuring device
DE10039916A1 (en) Linear guide with a vehicle supported on a linear rail has a positioning strip in the form of an Eddy current sheet arranged parallel to the rail that works in conjunction with a measurement head and an exciter block
DE2045299A1 (en) Adjustable display device, especially for parking time control in motor vehicles
DE19939659A1 (en) Length measurement device has sensor unit for reading information from information strip device in form of flexible band unit with fully enclosing flexible encapsulation

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)