DE2630880C3 - Length measuring device - Google Patents

Length measuring device

Info

Publication number
DE2630880C3
DE2630880C3 DE19762630880 DE2630880A DE2630880C3 DE 2630880 C3 DE2630880 C3 DE 2630880C3 DE 19762630880 DE19762630880 DE 19762630880 DE 2630880 A DE2630880 A DE 2630880A DE 2630880 C3 DE2630880 C3 DE 2630880C3
Authority
DE
Germany
Prior art keywords
measuring device
length measuring
hollow body
joints
ball joints
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
DE19762630880
Other languages
German (de)
Other versions
DE2630880B2 (en
DE2630880A1 (en
Inventor
Alfons Dipl.-Ing. 8225 Traunreut Ernst
Guenther Dr.-Ing. 8221 Siegsdorf 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 GB2881277A priority patent/GB1583489A/en
Priority to JP8110777A priority patent/JPS539141A/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)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Rolling Contact Bearings (AREA)

Description

Gegenstand des Patents 25 05 585 ist eine Langenmeßeinrichtung zum Messen oder Einstellen der Relativlage zweier Objekte, z. B. Bett und Schlitten einer Bearbeitungs- oder Meßmaschine, deren Meßteilung und die dieser vorgelagerte Abtastbaueinheit zur Abschirmung gegenUmwelteinflüsse in einem langgestreckten biegesteifen Hohlkörper eingebracht sind, der an einem der vorgenannten Objekte über zweckmäßig an seinen Enden vorgesehene gelenkartig ausgebildete Befestigungselemente befestigt ist.The subject of patent 25 05 585 is a length measuring device for measuring or setting the relative position of two objects, e.g. B. Bed and sleigh a processing or measuring machine, its measuring graduation and the scanning unit upstream of it placed in an elongated, rigid hollow body for shielding against environmental influences are, the articulated on one of the aforementioned objects via appropriately provided at its ends trained fasteners is attached.

Als Befestigungselemente werden dort Winkelteile verwendet, die im Scheitelbereich der Schenkel eine Schwachstelle in Form einer Nut aufweisen. Es hat sich herausgestellt, daß derartige Winkelteile nicht allen Anforderungen gerecht werden. Die vorliegende Erfindung bezweckt daher, eine verbesserte Befestigungseinrichtung fur die Befestigung des Hohlkörpers an einem der Objekte, deren Relativlage gemessen werden soll, /u schaffen.Angle parts are used as fastening elements there, which have a Have a weak point in the form of a groove. It has been found that such angle parts not all To fit in requirements. The present invention therefore aims to provide an improved fastening device for the attachment of the hollow body to one of the objects whose relative position is measured should be, / u create.

In Weiterbildung der Längenmeßeinrichtung des Hauptpatentes wird die gestellte Aufgabe dadurch gelöst, daß als Befestigungselemente Gelenke mit gekrümmter Fläche, vorzugsweise Kugelgelenke* verIn a further development of the length measuring device of the main patent, the problem posed is achieved by that as fasteners joints with a curved surface, preferably ball joints * ver

wendet werden.be turned.

Die Befestigung des Hohlkörpers über derartige Gelenke bietet mehrere Vorteile:The fastening of the hollow body via such joints offers several advantages:

1. ZwangskräftefreieMaßstabbefestigungtd, h, der Hohlkörper und somit der Maßstab erfahren auch bei unebenen A.nbauflächen keine Verbiegung, 1.Fastening of rulers free of constrained forces t d, h, the hollow body and thus the ruler do not bend even with uneven construction surfaces,

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

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. Es zeigtExemplary embodiments of the invention are shown in the drawing. It shows

Fig. 1 eine Draufsicht auf eine Längenmeßeinrichtung nach dem Gattungsteil des Anspruches 1,Fig. 1 is a plan view of a length measuring device according to the generic part of claim 1,

Fig. 2 einen Schnitt nach der Linie II-IIderFig. 1, Fig. 3 ein weiteres Ausführungsbeispiel,FIG. 2 shows a section along the line II-II of FIG. 1, 3 shows a further embodiment,

Fig. 4 einen Schnitt nach der Linie IV-IV der Fig. 3,Fig. 4 is a section along the line IV-IV of Fig. 3,

Fig. 5 einen Schnitt nach der Linie V-V der Fig. 3, Fig. 6 ein weiteres Ausführungsbeispiel,Fig. 5 shows a section along the line V-V of Fig. 3, Fig. 6 shows a further embodiment,

Fig. 7 einen Schnitt nach der Linie VI-VI der Fig. 6,7 shows a section along the line VI-VI in FIG. 6,

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

Gemäß der Längenmeßeinrichtung nach dem Hauptpatent sind der Maßstab und die Aotastbaueinheit 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 Abtastbaueinheit hindurchgreift. Der Mitnehmer 2 ist an einer Baueinheit 3 angeformt, die an einem der Objekte, z. B. einem Maschinentisch, befestigt ist.According to the length measuring device according to the main patent, the scale and the Aotastbaueinheit placed in an elongated, rigid hollow body 1 for shielding against environmental influences. The hollow body 1 is closed by means of sealing lips through which a driver 2 for the on Scale guided scanning unit reaches through. The driver 2 is formed on a structural unit 3, on one of the objects, e.g. B. a machine table is attached.

Die Stirnseiten des Hohlkörpers 1 sind mittels Halter 4 verschlossen. Die Befestigung des Hohlkörpers 1 an einem der Objekte, z. B. einem Maschinenbett, erfolgt erfindungsgemäß unter Zwischenschaltung von Gelenken mit gekrümmter Fläche, vorzugsweise 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, zwangskräftefreien Anbau der Meßeinrichtung an der Maschine. Die Fixierung des Hohlkörpers 1 an dem Halter 4 erfolgt mittels Schrauben 7.The end faces of the hollow body 1 are closed by means of holders 4. The fastening of the hollow body 1 on one of the objects, e.g. B. a machine bed, takes place according to the invention with the interposition of Joints with a curved surface, preferably of ball joints 5. In a preferred embodiment the ball joints 5 each consist of a spherical disk 6 which is arranged on the holder 4 so as to be tiltable are. The ball joints 5 enable a robust attachment as well as a quick, force-free Attachment of the measuring device to the machine. The fixation of the hollow body 1 on the holder 4 takes place using screws 7.

Gemäß Fig. 1 wird der Hohlkörper 1 unter Zwischenschaltung zweier an den Enden vorgesehener Kugelgelenke 5 an dem Halter 4 montiert.According to Fig. 1, the hollow body 1 is interposed two ball joints 5 provided at the ends are mounted on the holder 4.

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

Fig. 6 zeigt eine weitere Befestigungsmoglichkeit, bei der an einem Ende des Hohlkörpers 1 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 fixedly at one end of the hollow body 1 attached balls 8 and at the opposite end of the hollow body 1 a ball joint 5 is provided are.

Im Rahmen der Erfindung sind selbstverständlich auch Abwandlungen denkbar, So ist es 2, B. auch möglich, Kugeischeiben durch Zylinderscheiben zu ersetzen.In the context of the invention, modifications are of course also conceivable, so it is 2, B. also possible to replace spherical washers with cylindrical washers.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

Patentansprüche:Patent claims: 1. Längenmeßeinrichtung zum Messen oder Einstellen der Relativlage zweiter Objekte, z. B. Bett und Schlitten einer Bearbeitungs- oder Meßmaschine, deren Meßteilung und die dieser vorgelagerte Abtastbaueinheit zur Abschirmung gegen Umwelteinflüsse in einem langgestreckten biegesteifen Hohlkörper eingebracht sind, der an einem to der vorgenannten Objekte über zweckmäßig an seinen Enden vorgesehene gelenkartig ausgebildete Befestigungselemente befestigt ist, nach Patent 25 05 585, dadurch gekennzeichnet, daß als Befestigungselemente Gelenke (5, 6, 8) mit gekrümmter Fläche, vorzugsweise Kugelgelenke, verwendet werden.1. Length measuring device for measuring or setting the relative position of second objects, e.g. B. Bed and slide of a processing or measuring machine, its measuring graduation and the one in front of it Scanning unit for shielding against environmental influences in an elongated rigid Hollow bodies are introduced, which is expediently connected to one of the aforementioned objects its ends provided articulated fastening elements is attached according to Patent 25 05 585, characterized in that joints are used as fastening elements (5, 6, 8) with a curved surface, preferably ball joints, can be used. 2. Längenmeßeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kugelgelenke (5) jeweils aus einer kippbar angeordneten Kugelscheibe (6) beafehen. die an einem Halter (4) an der Stirnseite des Kohlkörpers (1) vorgesehen ist.In that the ball joints (5) respectively beafehen 2. Length measuring device according to claim 1, characterized in e iner tiltably arranged ball plate (6). which is provided on a holder (4) on the end face of the cabbage body (1). 3. Längenmeßeinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Kugelgelenke (5) nach Art einer Dreipunktauflage am Hohlkörper (1) angeordnet sind.3. Length measuring device according to claim 1 and 2, characterized in that the ball joints (5) are arranged in the manner of a three-point support on the hollow body (1). 4. Längenmeßeinrichtung 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) eine etwa in der Mitte zwischen den vorgenannten Kugeln (8) angeordnete kippbare Kugelscheibe (6) vorgesehen ist. 4. Length measuring device according to claim 1, characterized in that at one end of the hollow body (1) two transversely to the measuring direction one behind the other, firmly attached balls (8) and at the opposite end of the hollow body (1) approximately in the middle between the aforementioned balls (8) arranged tiltable spherical disk (6) is provided . 3535
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
GB2881277A GB1583489A (en) 1976-07-09 1977-07-08 Length-measuring devices
JP8110777A JPS539141A (en) 1976-07-09 1977-07-08 Length measuring device
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 DE2630880A1 (en) 1978-01-12
DE2630880B2 DE2630880B2 (en) 1978-04-27
DE2630880C3 true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302643A1 (en) * 1983-01-27 1984-08-02 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut LENGTH MEASURING DEVICE

Families Citing this family (8)

* 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
US4649648A (en) * 1984-08-31 1987-03-17 Sony Magnescale Incorporation Linear scale
JPS6247906U (en) * 1985-09-12 1987-03-24
DE3601945A1 (en) * 1986-01-23 1987-07-30 Heidenhain Gmbh Dr Johannes LENGTH MEASURING DEVICE
DE8717711U1 (en) * 1987-11-17 1989-08-31 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Photoelectric position measuring device
JP4803794B2 (en) * 2005-08-04 2011-10-26 ハイデンハイン株式会社 Linear encoder
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

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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302643A1 (en) * 1983-01-27 1984-08-02 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut LENGTH MEASURING DEVICE
EP0114972A2 (en) * 1983-01-27 1984-08-08 Dr. Johannes Heidenhain GmbH Length measuring device
EP0114972A3 (en) * 1983-01-27 1985-04-03 Dr. Johannes Heidenhain Gmbh Length measuring device

Also Published As

Publication number Publication date
CH606989A5 (en) 1978-11-30
IT1117678B (en) 1986-02-17
JPS539141A (en) 1978-01-27
FR2357862A2 (en) 1978-02-03
FR2357862B2 (en) 1982-03-12
GB1583489A (en) 1981-01-28
ATA488377A (en) 1986-04-15
DE2630880B2 (en) 1978-04-27
DE2630880A1 (en) 1978-01-12
AT381793B (en) 1986-11-25

Similar Documents

Publication Publication Date Title
DE2853771C2 (en) Length measuring device
DE2712421C2 (en) Encapsulated length measuring device
DE2630880C3 (en) Length measuring device
DE3319600C2 (en)
DE2712096C2 (en) Encapsulated measuring device
DE2724858B2 (en)
DE4139697C2 (en) Device for testing and measuring mattresses, upholstery or similar flat-elastic objects
DE3224005A1 (en) LENGTH OR ANGLE MEASURING SYSTEM
DE2726867C2 (en) Holder for a measuring and/or testing device
DE4309082A1 (en) Measuring device for measuring the shape of cylinders
DE2915553C2 (en) Device for introducing a force to be measured into a bending rod
DE3509390A1 (en) Encapsulated length-measuring device
DE7621703U (en)
DE2028140C3 (en) Optical bench
DE3601945C2 (en)
DE4318017A1 (en) Position measuring device
DE2451924A1 (en) DEVICE FOR MEASURING TORSIONAL TENSION
DE184916C (en)
DE2042155B2 (en) Caliper with dial gauge
DE2707939C2 (en) Hardness tester
DE1162598B (en) Measuring cuff
DE29505341U1 (en) Measuring device for determining a measured variable correlated with the set angle of a flat material helix
DE333544C (en) Adjustable precision gauge with micrometer
DE745952C (en) Measuring device for determining the tooth width of bevel gears
DE484527C (en) Device for producing hatching on drawings or the like.

Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
C3 Grant after two publication steps (3rd publication)