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DE2630880A1 - LENGTH MEASURING DEVICE - Google Patents

LENGTH MEASURING DEVICE

Info

Publication number
DE2630880A1
DE2630880A1 DE19762630880 DE2630880A DE2630880A1 DE 2630880 A1 DE2630880 A1 DE 2630880A1 DE 19762630880 DE19762630880 DE 19762630880 DE 2630880 A DE2630880 A DE 2630880A DE 2630880 A1 DE2630880 A1 DE 2630880A1
Authority
DE
Germany
Prior art keywords
hollow body
measuring device
length measuring
joints
attached
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
Application number
DE19762630880
Other languages
German (de)
Other versions
DE2630880B2 (en
DE2630880C3 (en
Inventor
Alfons Dipl Ing Ernst
Guenther Dr Ing Nelle
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 DE19762630880 priority Critical patent/DE2630880C3/en
Priority to CH817677A priority patent/CH606989A5/xx
Priority to FR7720694A priority patent/FR2357862A2/en
Priority to IT1267277A priority patent/IT1117678B/en
Priority to AT488377A priority patent/AT381793B/en
Priority to JP8110777A priority patent/JPS539141A/en
Priority to GB2881277A priority patent/GB1583489A/en
Publication of DE2630880A1 publication Critical patent/DE2630880A1/en
Publication of DE2630880B2 publication Critical patent/DE2630880B2/en
Priority to US05/957,236 priority patent/US4198757A/en
Application granted granted Critical
Publication of DE2630880C3 publication Critical patent/DE2630880C3/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/002—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Rolling Contact Bearings (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Description

1)3. JOHANHJ33 IIEIDEMHAIK GMBH °;.·'!Γα6^η:3ψπ 7- Juli 19761) 3. JOHANHJ33 IIEIDEMHAIK GMBH °;. · ' ! Γ α6 ^ η: 3ψπ 7- July 1976

_ ■ ;.) ■■■■ - ge:;.ivri /---c'-.i j_ ■ ;.) ■■■■ - ge:;. Ivri /---c'-.i j

LängenmeßeinrichtungLength measuring device

Die Erfindung betrifft eine Längenmeßeinrichtung zum Kessen oder Einstellen der Relativlage zweier Objekte, deren Meßteilung und Abtastbaueinheit zur Abschirmung . gegen Umwelteinflüsse in einem langgestreckten biege— steifen Hohlkörper eingebracht sind, der an einem der vorgenannten Objekte über gelenkartig ausgebildete Teile befestigt ist. Eine derartige Längenmeßeinrichtung is.t Gegenstand des Hauptpatentes (Patentanmeldung P 25 05 585.0).The invention relates to a length measuring device for Kessening or setting the relative position of two objects, their measuring graduation and scanning unit for shielding . are introduced against environmental influences in an elongated, rigid hollow body which is attached to one of the aforementioned objects is attached via articulated parts. Such a length measuring device is.t Subject of the main patent (patent application P 25 05 585.0).

Vorliegende Anmeldung bezweckt eine weitere vorteilhafte Befestigurigsmöglichkeit für eine derartige Längenmeßeinrichtung.The present application aims at a further advantageous fastening possibility for such a device Length measuring device.

Im .Ausführungsbeispiel des Hauptpatentes In the embodiment of the main patent

(Patentanmeldung P 25 05 585-0) sind die an den Enden des Hohlkörpers vorgesehenen gelenkartigen Befestigungsmittel V/inkelteile, die eine Schwachstelle in Form einer Nut aufweisen. Gemäß vorliegender Erfindung dagegen ist der Hohlkörper unter Zwischenschaltung von Gelenken mit gekrümmter Fläche, vorzugsweise Kugelgelenken, befestigt. Der Anbau über derartige Gelenke bietet mehrere Vorteile:(Patent application P 25 05 585-0) are those at the ends of the hollow body provided joint-like fastening means V / inkelteile, which have a weak point in the form of a Have groove. According to the present invention, however, the hollow body is with the interposition of joints curved surface, preferably ball joints attached. The attachment via such joints offers several advantages:

1. Zwangskräftefreie Maßstabbefestigung, d.h. der Hohlkörper und somit der Mpßstab erfahren auch bei unebenen Anbauflächen keine Verbiegung,1. Scale attachment free of constraining forces, i.e. the hollow body and thus the measuring rod do not bend even with uneven cultivation surfaces,

2. robuste Befestigung an der Maschine,2. robust attachment to the machine,

709882/ΟΛ81709882 / ΟΛ81

3. einfache Montage,3. easy assembly,

4. Gelenke sind leicht herstellbar,4. Joints are easy to manufacture,

5. raumsparende Bauweise.5. Space-saving design.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt.In the drawing are exemplary embodiments of the invention shown.

Es zeigtIt shows

Figur 1 eine Draufsicht auf die Längenmeßein— richtung nacii der Erfindung,FIG. 1 is a plan view of the length measuring device nacii of the invention,

Figur 2 einen Schnitt nach der Linie II—II der Figur 1,Figure 2 shows a section along the line II-II of Figure 1,

Figur 3 ein weiteres Ausführungsbeispiel der Erfindung,Figure 3 shows another embodiment of the invention,

Figur 4 einen Schnitt nach der Linie IV-IV der Figur 3*FIG. 4 shows a section along the line IV-IV of figure 3 *

Figur 5 einen Schnitt nach der Linie V-V der Figur 3»Figure 5 is a section along the line V-V of figure 3 »

Figur 6 ein weiteres Ausführungsbeispiel der Erfindung,Figure 6 shows a further embodiment of the invention,

Figur" 7 einen Schnitt nach der Linie VI-VI der Figur 6,Figure "7 shows a section along the line VI-VI of Figure 6,

Figur 8 einen Schnitt nach der Linie VII—VII der Figur 6.FIG. 8 shows a section along the line VII-VII in FIG.

Die Figuren 1, 3 und 6 zeigen-gekapselte inkrementale Längenmeßeinrichtungen. Längenmeßeinrichtungen dieser Art sind Gegenstand des deutschen Gebrauchsmusters 7 504 024. Bei dieser Meßeinrichtung sind der Maßstab und die Abtast— baueinheit zur Abschirmung gegen Umwelteinflüsse in einem langgestreckten biegesteifen Hohlkörper 1 eingebracht. Der Hohlkörper 1 ist mittels Dichtlippen verschlossen, durch die ein Mitnehmer 2 für die am Maßstab geführte Abtast— baueinheit hindurchgreift. Der Mitnehmer 2 ist an einer Baueinheit 3 angeformt, die an einem der Objekte, z.B. einem Iiaschinentisch, befestigt ist.Figures 1, 3 and 6 show encapsulated incremental length measuring devices. Length measuring devices of this type are the subject of German utility model 7 504 024. In this measuring device, the scale and the scanning unit are placed in an elongated, rigid hollow body 1 to shield against environmental influences. The hollow body 1 is closed by means of sealing lips through which a driver 2 for the scanning unit guided on the scale extends. The driver 2 is formed on a structural unit 3 which is attached to one of the objects, for example a machine table.

709882/0481709882/0481

~y~~ y ~

Die otir.nseiten des Hohlkörpers 1 sind mittels Halter M-verschlossen. Die Befestigung des Hohlkörpers 1 an einem der Objekte, z.B. einem Maschinenbett, erfolgt erfindungs gemäß unter Zwischenschaltung von Kugelgelenken 5· Bei einer bevorzugten Ausführungsform bestehen die Kugelgelenke 5 jeweils aus einer Kugelscheibe 6, die am Halter 4-kippbar angeordnet sind. Die Kugelgelenke 5 ermöglichen eine robuste Befestigung sowie einen raschen, zwangs— ■kräftefreien Anbau der Meßeinrichtung an der Maschine. Die Fixierung des Hohlkörr rs 1 an der Anbaufläche erfolgt mittels Schrauben 7·The other sides of the hollow body 1 are closed by means of holders M-. The fastening of the hollow body 1 to one of the objects, for example a machine bed, is carried out according to the invention with the interposition of ball joints 5. The ball joints 5 enable a robust attachment and a quick, force-free attachment of the measuring device to the machine. The fixation of the hollow body 1 on the mounting surface is done with screws 7

In Figur 1 wird der Hohlkörper 1 unter Zwischenschaltung zweier an den Enden vorgesehener Kugelgelenke 5 montiert.In Figure 1, the hollow body 1 is mounted with the interposition of two ball joints 5 provided at the ends.

Die Figur 2 zeigt eine Ausführung, die nach Art einer Dreipunktauflage insgesamt drei Kugelgelenke 5 aufweist.FIG. 2 shows an embodiment which has a total of three ball joints 5 in the manner of a three-point support.

Figur 6 zeigt eine weitere Befestigungsmöglichkeit, bei der an einem Ende des Hohlkörpers Λ zwei fest angebrachte Kugeln 8 und am gegenüberliegenden Ende des Hohlkörpers 1 ein Kugelgelenk 5 vorgesehen sind.FIG. 6 shows a further possibility of fastening, in which two balls 8 fixedly attached to one end of the hollow body Λ and a ball joint 5 are provided on the opposite end of the hollow body 1.

Im Rahmen der Erfindung sind selbstverständlich auch Abwandlungen denkbar. 3o ist'es z.B. auch möglich, Kugel— scheiben durch·Zylinderscheiben zu ersetzen.Modifications are of course also conceivable within the scope of the invention. 3o it is e.g. also possible, sphere - washers to be replaced by · cylindrical washers.

/l/ l

709882/0481709882/0481

LeerseiteBlank page

Claims (4)

DR. JOHANNES IIEIUJ3NIIAIH GMBH 7. Juli 1976 PatentansprücheDR. JOHANNES IIEIUJ3NIIAIH GMBH July 7, 1976 Patent claims 1.) Längenmeßeinrichtung zum Messen oder Einstellen der Relativlage zweier Objekt.e, deren Meßteilung und Abtastbaueinheit zur Abschirmung gegen Umwelteinflüsse in einem langgestreckten biegesteifen Hohlkörper eingebracht sind, der an einem der vorgenannten Objekte über gelenkartig ausgebildete1.) Length measuring device for measuring or setting the Relative position of two objects, their graduation and Scanning unit for shielding against environmental influences in an elongated, rigid hollow body are introduced, the one of the aforementioned objects via articulated Teile befestigt ist, nach Patent Parts attached, according to patent (Patentanmeldung P 25 05 585*0), dadurch gekennzeichnet, daß der Hohlkörper (1) unter Zwischenschaltung von Gelenken (5 bzw. 5/8) mit gekrümmter Fläche, vorzugsweise Kugelgelenken, befestigt ist.(Patent application P 25 05 585 * 0), characterized in that that the hollow body (1) with the interposition of joints (5 or 5/8) with curved Surface, preferably ball joints, is attached. 2.) Längenmeßeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kugelgelenke (5) jeweils aus einer Kugelscheibe (6), die kippbar angeordnet ist, bestehen. . '· 2.) Length measuring device according to claim 1, characterized in that the ball joints (5) each consist of a spherical disk (6) which is arranged tiltably. . '· 3«) Längenmeßeinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß an den Enden des Hohlkörpers (1) jeweils ein Kugelgelenk (5) vorgesehen ist.3 «) length measuring device according to claim 1 and 2, characterized characterized in that a ball joint (5) is provided at each end of the hollow body (1). 4.) Längenmeßeinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß Kugelgelenke (5) nach Art einer Dreipunktauflage am Hohlkörper (1) vorgesehen sind.4.) length measuring device according to claim 1 and 2, characterized in that ball joints (5) in the manner of a Three-point support are provided on the hollow body (1). 709882/0481709882/0481 ORlQSNAL INSPECTBDORlQSNAL INSPECTBD Längenmeßeinrichbung nach Anspruch 1, dadurch gekennzeichnet, daß an einem Ende des Hohlkörpers (1) zwei quer zur Meßrichtung hintereinander liegende, fest; angebrachte Kugeln (8) und am gegenüberliegenden Ende des Hohlkörpers (1) ein etwa in der Witte zwischen den vorgenannten Kugeln (8) angeordnetes Kugelgelenk (5) vorgesehen ist.Length measuring device according to claim 1, characterized characterized in that at one end of the hollow body (1) two transversely to the measuring direction one behind the other lying, firm; attached balls (8) and at the opposite end of the hollow body (1) an approximately in the Witte between the aforementioned Balls (8) arranged ball joint (5) is provided. 709882/0481709882/0481
DE19762630880 1976-07-09 1976-07-09 Length measuring device Expired DE2630880C3 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19762630880 DE2630880C3 (en) 1976-07-09 1976-07-09 Length measuring device
CH817677A CH606989A5 (en) 1976-07-09 1977-07-04
FR7720694A FR2357862A2 (en) 1976-07-09 1977-07-05 MEASURING DEVICE, IN PARTICULAR FOR MEASURING THE RELATIVE POSITION OF TWO OBJECTS
AT488377A AT381793B (en) 1976-07-09 1977-07-07 LENGTH MEASURING DEVICE
IT1267277A IT1117678B (en) 1976-07-09 1977-07-07 LINEAR MEASUREMENT DEVICE
JP8110777A JPS539141A (en) 1976-07-09 1977-07-08 Length measuring device
GB2881277A GB1583489A (en) 1976-07-09 1977-07-08 Length-measuring devices
US05/957,236 US4198757A (en) 1976-07-09 1978-11-02 Fastening apparatus for longitudinal measuring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762630880 DE2630880C3 (en) 1976-07-09 1976-07-09 Length measuring device

Publications (3)

Publication Number Publication Date
DE2630880A1 true DE2630880A1 (en) 1978-01-12
DE2630880B2 DE2630880B2 (en) 1978-04-27
DE2630880C3 DE2630880C3 (en) 1978-12-21

Family

ID=5982574

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762630880 Expired DE2630880C3 (en) 1976-07-09 1976-07-09 Length measuring device

Country Status (7)

Country Link
JP (1) JPS539141A (en)
AT (1) AT381793B (en)
CH (1) CH606989A5 (en)
DE (1) DE2630880C3 (en)
FR (1) FR2357862A2 (en)
GB (1) GB1583489A (en)
IT (1) IT1117678B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509262A (en) * 1983-01-27 1985-04-09 Dr. Johannes Heidenhain Gmbh Mounting arrangement for length measuring device
DE3601945A1 (en) * 1986-01-23 1987-07-30 Heidenhain Gmbh Dr Johannes LENGTH MEASURING DEVICE
EP0316625A2 (en) * 1987-11-17 1989-05-24 Dr. Johannes Heidenhain GmbH Photo-electric position-measuring device
CN102445173A (en) * 2011-09-14 2012-05-09 中国航空工业集团公司西安飞机设计研究所 Clamping device for linear displacement sensor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161810A (en) * 1982-03-19 1983-09-26 Mitsutoyo Mfg Co Ltd Linear scale type measuring device
DD224655A1 (en) * 1984-05-02 1985-07-10 Zeiss Jena Veb Carl CAPSUED LENGTH MEASURING DEVICE
DE3530776A1 (en) * 1984-08-31 1986-03-06 Sony Magnescale Inc., Tokio/Tokyo RIGHT LINE MEASURING SCALE
JPS6247906U (en) * 1985-09-12 1987-03-24
JP4803794B2 (en) * 2005-08-04 2011-10-26 ハイデンハイン株式会社 Linear encoder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533703A (en) * 1966-06-23 1970-10-13 Itek Corp Linear motion encoder
JPS4824278U (en) * 1971-07-19 1973-03-20
US3833303A (en) * 1972-10-06 1974-09-03 Bausch & Lomb Measuring apparatus using the moire fringe concept of measurement
US4031595A (en) * 1975-09-02 1977-06-28 Bausch & Lomb Incorporated High precision incremental distance measuring system
SE408479B (en) * 1975-11-21 1979-06-11 Forsman Lars Osten METROR TRANSMISSION DEVICE IN METDON

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509262A (en) * 1983-01-27 1985-04-09 Dr. Johannes Heidenhain Gmbh Mounting arrangement for length measuring device
DE3601945A1 (en) * 1986-01-23 1987-07-30 Heidenhain Gmbh Dr Johannes LENGTH MEASURING DEVICE
EP0316625A2 (en) * 1987-11-17 1989-05-24 Dr. Johannes Heidenhain GmbH Photo-electric position-measuring device
EP0316625A3 (en) * 1987-11-17 1989-11-29 Dr. Johannes Heidenhain Gmbh Photo-electric position-measuring device
CN102445173A (en) * 2011-09-14 2012-05-09 中国航空工业集团公司西安飞机设计研究所 Clamping device for linear displacement sensor
CN102445173B (en) * 2011-09-14 2014-08-06 中国航空工业集团公司西安飞机设计研究所 Clamping device for linear displacement sensor

Also Published As

Publication number Publication date
JPS539141A (en) 1978-01-27
CH606989A5 (en) 1978-11-30
IT1117678B (en) 1986-02-17
FR2357862B2 (en) 1982-03-12
ATA488377A (en) 1986-04-15
AT381793B (en) 1986-11-25
FR2357862A2 (en) 1978-02-03
DE2630880B2 (en) 1978-04-27
GB1583489A (en) 1981-01-28
DE2630880C3 (en) 1978-12-21

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