DE942172C - Three-point measuring device for determining the diameter of large turned parts (over 900 mm) - Google Patents

Three-point measuring device for determining the diameter of large turned parts (over 900 mm)

Info

Publication number
DE942172C
DE942172C DEG15547A DEG0015547A DE942172C DE 942172 C DE942172 C DE 942172C DE G15547 A DEG15547 A DE G15547A DE G0015547 A DEG0015547 A DE G0015547A DE 942172 C DE942172 C DE 942172C
Authority
DE
Germany
Prior art keywords
measuring
diameter
measuring device
determining
turned parts
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
DEG15547A
Other languages
German (de)
Inventor
Axel John
Karl Vatter
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.)
GUSSSTAHLWERK GELSENKIRCHEN AG
Original Assignee
GUSSSTAHLWERK GELSENKIRCHEN AG
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 GUSSSTAHLWERK GELSENKIRCHEN AG filed Critical GUSSSTAHLWERK GELSENKIRCHEN AG
Priority to DEG15547A priority Critical patent/DE942172C/en
Application granted granted Critical
Publication of DE942172C publication Critical patent/DE942172C/en
Expired legal-status Critical Current

Links

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
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
    • G01B5/213—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Description

Zur Durchmesserbestimmung großer Drehteile sind Meßgeräte bekannt, bei denen der Durchmesser des Werkstückes durch Dreipunktmessung auf dem Kreisumfang bestimmt wird. Es können mit diesen Geräten Vergleichsmessungen und direkte Messungen vorgenommen werden. Measuring devices are known for determining the diameter of large turned parts. where the diameter of the workpiece by three-point measurement on the circumference is determined. These devices can be used for comparison measurements and direct measurements be made.

Bei der direkten Messung, bei welcher der Durchmesser nach bekannten mathematischen Grundlagen aus der gemessenen Sehnenlänge sowie der zugehörigen Bogenhöhe errechnet wird, ist es erforderlich, mit Hilfe von Nonien den rechten und linken Meßpunkt in gleichen Abstand vom mittleren Meßpunkt zu bringen. In the case of direct measurement, in which the diameter is known mathematical fundamentals from the measured chord length and the associated arch height is calculated, it is necessary, with the help of verniers, to determine the right and left Bring the measuring point at the same distance from the central measuring point.

Die vorliegende Erfindung betrifft ein Meßgerät, welches das direkte Ablesen der Sehnenlänge eines Kreisbogens bei konstanter Bogenhöhe ermöglicht, ohne daß zusätzliche Einstellungen erforderlich sind. Dies wird erfindungsgemäß dadurch erreicht, daß der durch den Meßuhrstößel K gebildete mittlere Meßpunkt durch eine an sich bei Meßgeräten bekannte Differentialschraube stets in der Mitte der beiden äußeren durch die beweglichen und festen Meßschenkel F und B gegebenen Meßpunkte gehalten wird, indem er im Verhältnis 2 : 1 in jeweils gleicher Richtung bewegt wird. The present invention relates to a measuring device, which the direct Reading the chord length of a circular arc at a constant arc height allows without that additional settings are required. According to the invention, this is thereby achieved achieved that the middle measuring point formed by the dial gauge plunger K by a Differential screw known per se in measuring instruments always in the middle of the two outer measuring points given by the movable and fixed measuring legs F and B is held by moving in the same direction at a ratio of 2: 1 will.

Aufbau und Arbeitsweise des Dreipunktgerätes: An dem U,-förmig ausgebildeten Gehäuse A befindet sich der feste Meßpunkt B. Durch Drehen der Differentialschraube D über eine Skalenscheibe C mit Kordelgriff werden die spielfrei gelagerten Muttern E und der damit verbundene Meßschenkel F bewegt. Ferner bewegt sich halb so schnell wie die Mutter E die als Meßuhrträger ausgebildete Mutter G, bedingt durch das auf der Differentialschraube vorhandene Gewinde H, das die halbe Steigung des Gewindes J besitzt. Structure and mode of operation of the three-point device: On the U, -shaped Housing A is the fixed measuring point B. By turning the differential screw D The nuts, which are mounted free of play, are attached via a dial C with a cord handle E and the associated measuring arm F moves. It also moves half as fast like the nut E, the nut G, designed as a dial gauge carrier, due to the on the differential screw has a thread H that is half the pitch of the thread J owns.

Nach Justierung der Meßuhr wird das Gerät zur Anlage an das zu messende Werkstück gebracht und die Meßschenkel durch Drehen an dem Kordelgriff der Skalenscheibe C so weit voneinander entfernt, daß der Meßuhrstößel K das Werkstück berührt und der Zeiger der Meßuhr in Nullstellung steht. Von der Skala L werden nun die ganzen und von der Skalenscheibe C die Hundertstelmillimeter abgelesen. Die abgelesene Zahl gibt die Sehnenlänge an, die zu der bei der Justierung festgelegten Bogenhöhe gehört. After adjusting the dial gauge, the device becomes attached to the one to be measured Workpiece brought and the measuring legs by turning the cord handle of the dial C so far apart that the dial gauge plunger K touches the workpiece and the pointer of the dial gauge is in the zero position. From the L scale, the whole and read the hundredths of a millimeter from the dial C. The read Number indicates the chord length that corresponds to the arch height specified during the adjustment heard.

Claims (1)

PATENTANSPRUCH: Dreipunktmeßgerät zur Durchmesserbestimmung großer Drehteile, dadurch gekennzeichnet, daß der durch den Meßuhrstößel (K) gebildete mittlere Meßpunkt durch eine an sich bei Meßgeräten bekannte Differentialschraube stets in der Mitte der beiden äußeren durch die beweglichen und festen Meßschenkel (F) und (B) gegebenen Meßpunkte gehalten wird. PATENT CLAIM: Three-point measuring device for determining large diameters Turned parts, characterized in that the one formed by the dial gauge plunger (K) middle measuring point by a differential screw known per se in measuring devices always in the middle of the two outer ones through the movable and fixed measuring arms (F) and (B) given measuring points is held. Angezogene Druckschriften: Deutsche Patentschrift Nr. r5-+ 266; britische Patentschrift Nr. 398 352; O. Lueger, »Lexikon der gesamten Technik«, 2. Aufl., 2. Band, S. 766. Referenced publications: German Patent No. r5- + 266; British U.S. Patent No. 398,352; O. Lueger, »Lexicon of Entire Technology«, 2nd ed., Volume 2, p. 766.
DEG15547A 1954-10-09 1954-10-09 Three-point measuring device for determining the diameter of large turned parts (over 900 mm) Expired DE942172C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG15547A DE942172C (en) 1954-10-09 1954-10-09 Three-point measuring device for determining the diameter of large turned parts (over 900 mm)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG15547A DE942172C (en) 1954-10-09 1954-10-09 Three-point measuring device for determining the diameter of large turned parts (over 900 mm)

Publications (1)

Publication Number Publication Date
DE942172C true DE942172C (en) 1956-04-26

Family

ID=7120464

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG15547A Expired DE942172C (en) 1954-10-09 1954-10-09 Three-point measuring device for determining the diameter of large turned parts (over 900 mm)

Country Status (1)

Country Link
DE (1) DE942172C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597418A1 (en) * 2011-11-23 2013-05-29 Ralf Huselstein Device for measuring the diameter or radius of a workpiece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE154266C (en) * 1903-09-22 1904-09-14
GB398352A (en) * 1932-10-17 1933-09-14 Gilbertson & Company Ltd W Improvements in or connected with apparatus for drawing graphs for recording the camber of rolls

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE154266C (en) * 1903-09-22 1904-09-14
GB398352A (en) * 1932-10-17 1933-09-14 Gilbertson & Company Ltd W Improvements in or connected with apparatus for drawing graphs for recording the camber of rolls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597418A1 (en) * 2011-11-23 2013-05-29 Ralf Huselstein Device for measuring the diameter or radius of a workpiece

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