DE3816130A1 - Device for measuring the length, the diameters, the wall thickness and the ovality of tubes (pipes), in particular of large tubes - Google Patents

Device for measuring the length, the diameters, the wall thickness and the ovality of tubes (pipes), in particular of large tubes

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Publication number
DE3816130A1
DE3816130A1 DE19883816130 DE3816130A DE3816130A1 DE 3816130 A1 DE3816130 A1 DE 3816130A1 DE 19883816130 DE19883816130 DE 19883816130 DE 3816130 A DE3816130 A DE 3816130A DE 3816130 A1 DE3816130 A1 DE 3816130A1
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Germany
Prior art keywords
measuring
tube
measured
arms
pipe
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Granted
Application number
DE19883816130
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German (de)
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DE3816130C2 (en
Inventor
P-Gerhard Dr Ing Althaus
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KUEHN, HEINZ, 44879 BOCHUM, DE
Original Assignee
ALTHAUS P GERHARD DR ING
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Priority to DE19883816130 priority Critical patent/DE3816130A1/en
Publication of DE3816130A1 publication Critical patent/DE3816130A1/en
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Publication of DE3816130C2 publication Critical patent/DE3816130C2/de
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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
    • G01B5/0004—Supports
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention relates to a device for measuring the length, the diameters, the wall thickness and the ovality of tubes, in particular of large tubes. The measuring device consists essentially of an elongated, horizontal holding bed for the tube to be measured and two measuring carriages which are arranged respectively in front of the ends of the holding bed and can be moved in the axial direction of the tubes. Each measuring carriage respectively has the following measuring devices: - a probe (feeler) for feeling the tube ends for the purpose of length measurement, - a measuring head which can be displaced in the vertical direction and can be rotated about a horizontal axis, - the measuring head has two measuring arms which are displaceably mounted on a [lacuna] perpendicular to its axis of rotation and which in their initial position assume a position such that after the two measuring heads have been moved together a first measuring arm projects into the tube to be measured and a second measuring arm overlaps the tube from outside. By displacing the measuring heads in terms of their height and rotating them about their axis of rotation, the diameters, the wall thickness and the ovality of the tube are measured.

Description

Die Erfindung betrifft eine Vorrichtung zum Messen der Länge, der Durchmesser, der Wandstärke und der Ovalität von Rohren, insbesondere von Großrohren.The invention relates to a device for measuring the Length, diameter, wall thickness and ovality of Pipes, in particular large pipes.

Bisher erfolgten die vorstehend genannten Messungen manuell, so daß der gesamte Meßvorgang langwierig und ungenau war. Aufgabe der Erfindung ist es, eine Meßvorrichtung zu schaffen, welche die vorstehend genannten Messungen selbsttätig und in ein und derselben Position des Rohres vornimmt. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daßSo far, the above measurements have been done manually, so that the entire measurement process was lengthy and inaccurate. The object of the invention is to provide a measuring device create the above measurements automatically and in one and the same position of the tube makes. According to the invention, this object is achieved by that

  • - die Meßvorrichtung im wesentlichen aus einem langgestreckten, horizontalen Aufnahmebett für das zu messende Rohr und zwei jeweils vor den Enden des Aufnahmebettes angeordneten, in seiner Axialrichtung verfahrbaren Meßwagen besteht, die jeweils folgende Meßeinrichtungen aufweisen:- The measuring device essentially from one elongated, horizontal bed for that too measuring tube and two each in front of the ends of the Recording bed arranged, in its axial direction movable measuring carriage exists, the following each Measuring devices have:
  • - einen Taster, der beim Verfahren des Meßwagens in Axialrichtung des Rohres zur Längenmessung das Rohrende ertastet,- A button that when moving the test car in Axial direction of the pipe to measure the length of the pipe end felt,
  • - einen Meßkopf zur Messung der Durchmesser, der Wandstärke und der Ovalität mit folgendem Merkmalen:- A measuring head for measuring the diameter, the Wall thickness and ovality with the following characteristics:
  • - der Meßkopf ist in vertikaler Richtung verstellbar und- The measuring head is adjustable in the vertical direction and
  • - um eine horizontale Achse verdrehbar,- rotatable about a horizontal axis,
  • - er weist zwei auf einer senkrecht zu seiner Verdrehachse aufeinanderzu verschiebbar gelagerte Meßarme auf,- he points two to one perpendicular to his  Rotation axis slidably mounted to each other Measuring arms on,
  • - die Meßarme weisen in ihrer Ausgangsstellung eine solche Lage auf, daß ein erster Meßarm nach dem Zusammenfahren der beiden Meßköpfe in das zu messende Rohr hinein- und ein zweiter Meßarm das Rohr von außen überragt.- The measuring arms have a in their starting position such position that a first measuring arm after Moving the two measuring heads into the one to be measured Tube in and a second measuring arm the tube from towered outside.

Beim Meßvorgang liegt der erste Meßarm von außen und der zweite Meßarm von innen an der Rohrwandung an. Damit wird der Außendurchmesser und der Innendurchmesser des Rohres gemessen. Aufgrund dieser Werte wird der Meßkopf mit seiner Verdrehachse in die Mittelachse des Rohres gefahren und anschließend der Meßkopf in seiner Verdrehachse verdreht. Dabei fahren die Meßarme an der Außenwandung und der Innenwandung entlang und messen den exakten Außendurchmesser, Innendurchmesser, die Wandstärke und die Ovalität des Rohres.During the measuring process, the first measuring arm lies from the outside and the second measuring arm on the inside of the pipe wall. So that will the outside diameter and the inside diameter of the pipe measured. Based on these values, the measuring head with its Axis of rotation moved into the central axis of the tube and then the measuring head is rotated in its axis of rotation. The measuring arms move on the outer wall and the Along the inner wall and measure the exact Outside diameter, inside diameter, wall thickness and the Ovality of the pipe.

Bei einer vorteilhaften Ausgestaltung der Erfindung ist der Taster als Laserstrahlmeßeinrichtung ausgeführt, die im wesentlichen aus einem Emissionskopf und einem Detektor besteht. Mit dieser Meßeinrichtung kann die Länge des Rohres berührungsfrei und sehr genau gemessen werden. Es ist zweckmäßig und vorteilhaft, den Emissionskopf mit dem ersten Meßarm zu koppeln und den Detektor außerhalb des Außendurchmessers des kleinsten, auf der Vorrichtung zu messenden Rohres an dem Meßkopf fest anzuordnen. Damit liegen die beiden Hauptbestandteile der Laserstrahlmeßeinrichtung dicht beieinander.In an advantageous embodiment of the invention Button designed as a laser beam measuring device, which in essentially from an emission head and a detector consists. With this measuring device, the length of the tube can be measured without contact and very precisely. It is expediently and advantageously, the emission head with the first Coupling measuring arm and the detector outside the Outside diameter of the smallest, on the device too to arrange the measuring tube firmly on the measuring head. In order to are the two main components of Laser beam measuring device close together.

Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung sind an die freien Enden der Meßarme Rollen angebracht, welche als Auflagepunkte der Meßarme außen bzw. innen am Rohr zur Anlage zu bringen sind. Damit ist die Berührung zwischen den Meßarmen und dem zu messenden Rohr nicht gleitend und somit materialabnutzend, sondern rollend. In a further advantageous embodiment of the invention are attached to the free ends of the measuring arm rollers, which as the support points of the measuring arms on the outside or inside on Pipe must be brought to the plant. So that's the touch not between the measuring arms and the pipe to be measured sliding and therefore material-wasting, but rolling.  

Als Antrieb der Meßarme ist zweckmäßigerweise ein pneumatischer Antrieb eingesetzt, der relativ schnell und für den Fall einer ungleichen Wandstärke eines Rohres nachgiebig ist.It is expedient to drive the measuring arms pneumatic drive used which is relatively fast and in the event of an uneven wall thickness of a pipe is compliant.

Weiterhin von Vorteil ist, daß das langgestreckte Aufnahmebett aus mehreren mit ihrer Längsachse im Querschnitt V-förmig und verdrehbar angeordneten Rollen besteht. Damit ist das Rohr in seinem Aufnahmebett leicht um seine Längsachse verdrehbar. Zusätzlich sind die auf jedem der Arme der V-Form angeordneten Rollen in einem gemeinsamen Gestell um eine mittlere Längsachse des Gestells pendelnd gelagert. Damit kann sich das Aufnahmebett an unterschiedliche Rohrdurchmesser anpassen.Another advantage is that the elongated Recording bed made of several with their longitudinal axis in the Cross section V-shaped and rotatably arranged rollers consists. So that the tube is easily over in its receiving bed its longitudinal axis can be rotated. In addition, they are on everyone the arms of the V-shape are arranged in a common role Frame swinging around a central longitudinal axis of the frame stored. So that the admission bed can adapt different pipe diameters.

Zum leichteren Einrollen des zu messenden Rohres in sein Aufnahmebett ist jedes der beiden Rollengestelle getrennt anhebbar gelagert und durch einen Näherungssensor gesteuert. Damit ist das in das Bett einrollende Rohr abbremsbar und nach seiner Messung aus seinem Aufnahmebett herausrollbar.For easier rolling of the pipe to be measured into Each bed of the two roller frames is separate raised and controlled by a proximity sensor. The pipe rolling into the bed can thus be braked and can be rolled out of its bed after its measurement.

Bei einer weiteren vorteilhaften Ausgestaltung der Erfindung sind unterhalb des Aufnahmebettes mehrere in das Aufnahmebett hineinragende Taster angeordnet, die bis an das zu messende Rohr nachgiebig heranfahrbar sind. Zusätzlich sind die Rollen des Aufnahmebettes antreibbar ausgebildet. Dadurch ist es möglich, die Rohrgeradheit zu messen.In a further advantageous embodiment of the invention there are several in the bed below Push-button protruding bed arranged up to the pipe to be measured can be approached flexibly. In addition the roles of the receiving bed are drivable. This makes it possible to measure pipe straightness.

Die Zeichnung veranschaulicht ein vorteilhaftes Ausführungsbeispiel und zwar zeigenThe drawing illustrates an advantageous Embodiment and show

Fig. 1 die eine Hälfte der im wesentlichen symmetrisch aufgebauten Meßvorrichtung, Fig. 1 one half of the substantially symmetrical structure measuring apparatus,

Fig. 2 die zweite Hälfte der Meßvorrichtung und Fig. 3 einen Schnitt nach der Linie A-A. Fig. 2 shows the second half of the measuring device and Fig. 3 shows a section along the line AA.

Das zu messende Rohr wird auf der Rollbahn (1) in sein Aufnahmebett (2) hereingerollt. Mit (3) ist der größte Rohrdurchmesser und mit (4) der kleinste zu messende Rohrdurchmesser dargestellt. Das Aufnahmebett (2) besteht aus zwei im Abstand zueinander angeordneten Rollensegmenten. Der Abstand dieser beiden Rollensegmente ist kleiner als die kleinste Länge des zu messenden Rohres. Jedes Rollensegment besteht aus mehreren Rollen (5, 6), deren Längsmittelachsen im Querschnitt der Rollen V-förmig angeordnet sind. Die auf jedem der Arme der V-Form angeordneten Rollen (5) und (6) sind in ein separates Gestell eingesetzt, welches um eine mittlere Längsachse des Gestells pendelnd gelagert ist. Damit paßt sich das Aufnahmebett an jeden Rohrdurchmesser an. Beim Einrollen der Rohre (3) oder (4) aus Richtung X werden die die Rollen (5, 6) tragenden Gestelle durch die Kolben (7, 8) soweit abgesenkt, daß die Mittelachsen der Rollen (5, 6) in der Ebene der Rollbahn (1) liegen. Kurz bevor das zu messende Rohr (3) oder (4) die Meßposition erreicht hat, wird das die Rollen (6) tragende Gestell durch den Kolben (8), injiziert durch einen Näherungssensor, angehoben, so daß die Rollen (6) eine Bremswirkung auf das hereinrollende Rohr ausüben. Danach wird das die Rollen (5) tragende Gestell durch den Kolben (7) angehoben, so daß das zu messende Rohr (3) oder (4) in der Mittelebene des Aufnahmebettes liegt. Dann werden die Rollen (5, 6) gemeinsam durch die Kolben (7, 8) in die Meßposition angehoben.The pipe to be measured is rolled into the receiving bed ( 2 ) on the runway ( 1 ). The largest pipe diameter is shown with ( 3 ) and the smallest pipe diameter to be measured with (4). The receiving bed ( 2 ) consists of two roller segments arranged at a distance from one another. The distance between these two roller segments is smaller than the smallest length of the pipe to be measured. Each roller segment consists of several rollers ( 5 , 6 ), the longitudinal central axes of which are arranged in a V-shape in the cross section of the rollers. The rollers ( 5 ) and ( 6 ) arranged on each of the arms of the V-shape are inserted into a separate frame, which is mounted so as to oscillate about a central longitudinal axis of the frame. So that the bed adapts to any pipe diameter. When the tubes ( 3 ) or ( 4 ) are rolled in from direction X , the frames ( 5 , 6 ) carrying the frames are lowered by the pistons ( 7 , 8 ) to such an extent that the central axes of the rollers ( 5 , 6 ) are in the plane of Runway ( 1 ) are. Shortly before the tube ( 3 ) or ( 4 ) to be measured has reached the measuring position, the frame carrying the rollers ( 6 ) is raised by the piston ( 8 ), injected by a proximity sensor, so that the rollers ( 6 ) have a braking effect exert on the rolling pipe. Then the frame carrying the rollers ( 5 ) is raised by the piston ( 7 ), so that the tube ( 3 ) or ( 4 ) to be measured lies in the central plane of the receiving bed. Then the rollers ( 5 , 6 ) are raised together by the pistons ( 7 , 8 ) into the measuring position.

Haben die Rohre (3) oder (4) ihre Meßposition erreicht, werden die Meßwagen (9, 10) auf die Rohrenden zugefahren. Dabei gleitet ein erster Support (11) auf einer horizontal verlaufenden Schiene (12), die im Boden (13) fest verankert ist. Der erste Support (11) erhält seine Energie über das Leitungsband (14). Der erste Support (11) wird auf der Schiene (12) soweit in Richtung auf das Rohrende gefahren, bis der als Laserstrahlmeßeinrichtung ausgebildete Taster (15, 16) das Rohrende ertastet. Die Laserstrahlmeßeinrichtung besteht im wesentlichen aus dem Emissionskopf (15) und dem Detektor (16). Sobald die Laserstrahlmeßeinrichtung das Rohrende ertastet, wird der Vorschub des Supports (11) abgebrochen. Über außenstehende, die Lage des ersten Supports (11) feststellende elektronische Einrichtungen wird die Länge des Rohres (3) gemessen.When the pipes ( 3 ) or ( 4 ) have reached their measuring position, the measuring carriages ( 9 , 10 ) are moved towards the pipe ends. A first support ( 11 ) slides on a horizontally running rail ( 12 ) which is firmly anchored in the floor ( 13 ). The first support ( 11 ) receives its energy via the conduction band ( 14 ). The first support ( 11 ) is moved on the rail ( 12 ) towards the pipe end until the button ( 15 , 16 ) designed as a laser beam measuring device touches the pipe end. The laser beam measuring device consists essentially of the emission head ( 15 ) and the detector ( 16 ). As soon as the laser beam measuring device senses the tube end, the feed of the support ( 11 ) is interrupted. The length of the tube ( 3 ) is measured via external electronic devices which determine the position of the first support ( 11 ).

Danach werden die Meßwagen (9, 10) soweit auf das Rohrende zugefahren, bis die Meßarme (17, 18) des Meßkopfes (19) in Richtung auf die Rohrmitte über das Ende des Rohres hinweggefahren sind. Haben die Meßarme diese Position erreicht, werden sie soweit aufeinanderzugefahren, bis die an den freien Enden der Meßarme (17, 18) angeordneten Rollen (20, 21) an der Rohrwandung anliegen. Dabei liegt die Rolle (20) außen auf dem Rohr auf und die Rolle (21) auf der Rohrwandung gegenüberliegend an der Innenwandung des Rohres an. In dieser Stellung der Meßarme (17, 18) wird der Innen- oder Außendurchmesser des Rohres (3) bestimmt. Dieses erfolgt über einen Rechner, der die Lage einer der beiden Meßarme (17, 18) in Relation zu dem Aufnahmebett bestimmt.Then the measuring carriages ( 9 , 10 ) are moved towards the pipe end until the measuring arms ( 17 , 18 ) of the measuring head ( 19 ) have moved over the end of the pipe in the direction of the pipe center. Once the measuring arms have reached this position, they are moved towards each other until the rollers ( 20 , 21 ) arranged on the free ends of the measuring arms ( 17 , 18 ) rest against the pipe wall. The roller ( 20 ) lies on the outside of the tube and the roller ( 21 ) on the tube wall opposite to the inner wall of the tube. In this position of the measuring arms ( 17 , 18 ), the inside or outside diameter of the tube ( 3 ) is determined. This is done using a computer which determines the position of one of the two measuring arms ( 17 , 18 ) in relation to the receiving bed.

Im Anschluß an diesen Meßvorgang wird der Meßkopf (19) mit Hilfe des zweiten Supports (22) soweit in der Höhe, das heißt, senkrecht zu der Mittelachse (23) des Rohres (3) verfahren, bis die Drehachse (24) des Meßkopfes (19) mit der Mittelachse (23) des Rohres deckungsgleich ist. Dann wird der Meßkopf (19) um seine Mittelachse (24) verdreht, wobei die Rolle (20) des Meßarmes (17) außen auf dem Rohr entlang rollt und die Rolle (21) des Meßarmes (18) an der Innenwandung des Rohres entlang rollt. Bei diesem Drehvorgang des Meßkopfes (19) wird der Außendurchmesser der Innendurchmesser, die Wandstärke und die Ovalität des Rohres gemessen. Da der Antrieb der Meßarme (17, 18) aufeinanderzu pneumatisch erfolgt, sind die Meßarme (17, 18) nachgiebig gelagert, so daß sie bei einer gegebenen Ungleichheit der Wandstärke, sowie bei einer vorliegenden Ovalität in beiden Richtungen verstellbar sind. Die Verstellgröße der Meßarme wird ebenfalls auf einen Rechner gegeben, der die Meßwerte anzeigt. Nach erfolgter Messung fahren die Meßarme (17, 18) wieder auseinander, der zweite Support (22) herunter und der erste Support (11) von dem Rohr weg, so daß die gesamte Meßeinrichtung ihre Ausgangsstellung wieder einnimmt.Following this measuring process, the measuring head ( 19 ) is moved with the help of the second support ( 22 ) to the extent that it is perpendicular to the central axis ( 23 ) of the tube ( 3 ) until the axis of rotation ( 24 ) of the measuring head ( 19 ) is congruent with the central axis ( 23 ) of the tube. Then the measuring head ( 19 ) is rotated about its central axis ( 24 ), the roller ( 20 ) of the measuring arm ( 17 ) rolling along the outside of the tube and the roller ( 21 ) of the measuring arm ( 18 ) rolling along the inner wall of the tube . During this turning process of the measuring head ( 19 ), the outside diameter, the inside diameter, the wall thickness and the ovality of the tube are measured. Since the measuring arms ( 17 , 18 ) are pneumatically driven towards one another, the measuring arms ( 17 , 18 ) are resiliently mounted, so that they can be adjusted in both directions given a given inequality in the wall thickness and in the case of an ovality. The calibration variable of the measuring arms is also put on a computer which displays the measured values. After the measurement, the measuring arms ( 17 , 18 ) move apart again, the second support ( 22 ) down and the first support ( 11 ) away from the pipe, so that the entire measuring device returns to its starting position.

Unterhalb des Aufnahmebettes und zwischen den beiden Rollensegmenten (2) sind mehrere Tastköpfe (25) angeordnet, die bis an das zu messende Rohr nachgiebig durch pneumatische Kolben heranfahrbar sind. Diese Tastköpfe (25) messen die Geradheit der Rohre. Dazu sind die Rollen (5, 6) antreibbar. Ist auch diese Messung erfolgt, so werden die Kolben (7, 8) betätigt und dabei die Rollen (5) angehoben und die Rollen (6) abgesenkt. Dabei wird das vermessene Rohr (3) in Richtung X abgerollt. Nach Absenken der Rollen (5) in ihre Ausgangslage ist die Meßvorrichtung zum Vermessen eines weiteren Rohres bereit.Below the receiving bed and between the two roller segments ( 2 ), several probes ( 25 ) are arranged, which can be flexibly moved up to the tube to be measured by pneumatic pistons. These probes ( 25 ) measure the straightness of the tubes. For this purpose, the rollers ( 5 , 6 ) can be driven. If this measurement has also taken place, the pistons ( 7 , 8 ) are actuated and the rollers ( 5 ) are raised and the rollers ( 6 ) are lowered. The measured tube ( 3 ) is unrolled in the X direction. After lowering the rollers ( 5 ) into their starting position, the measuring device is ready to measure another pipe.

Claims (12)

1. Vorrichtung zum Messen der Länge, der Durchmesser, der Wandstärke und der Ovalität von Rohren, insbesondere Großrohren, dadurch gekennzeichnet, daß die Meßvorrichtung im wesentlichen aus einem langgestreckten, horizontalen Aufnahmebett (2) für das zu messende Rohr (3, 4) und zwei jeweils vor den Enden des Aufnahmebettes angeordneten in seiner Axialrichtung verfahrbaren Meßwagen (9, 10) besteht, die jeweils folgende Meßeinrichtungen aufweisen:
  • - einen Taster (15, 16) der beim Verfahren des Meßwagens (11) in Axialrichtung des Rohres (3, 4) zur Längenmessung das Rohrende ertastet,
  • - einen Meßkopf (19) zur Messung der Rohrdurchmesser, der Wandstärke und der Ovalität mit folgenden Merkmalen:
  • - der Meßkopf (19) ist in vertikaler Richtung verstellbar und
  • - um eine horizontale Achse (24) verdrehbar,
  • - er weist zwei auf einer senkrecht zu seiner Verdrehachse (24) aufeinanderzu verschiebbar gelagerte Meßarme (17, 18) auf,
  • - die Meßarme (17, 18) weisen in ihrer Ausgangsstellung eine solche Lage auf, daß ein erster Meßarm (18) nach dem Zusammenfahren der beiden Meßköpfe (19) in das zu messende Rohr hinein- und ein zweiter Meßarm (17) das Rohr von außen überragt.
1. A device for measuring the length, diameter, wall thickness and ovality of pipes, in particular large pipes, characterized in that the measuring device consists essentially of an elongated, horizontal receiving bed ( 2 ) for the pipe to be measured ( 3 , 4 ) and there are two measuring carriages ( 9 , 10 ) arranged in front of the ends of the receiving bed, each of which has the following measuring devices:
  • a probe ( 15 , 16 ) which, when the measuring carriage ( 11 ) is moved, detects the tube end in the axial direction of the tube ( 3 , 4 ) for length measurement,
  • - A measuring head ( 19 ) for measuring the pipe diameter, wall thickness and ovality with the following features:
  • - The measuring head ( 19 ) is adjustable in the vertical direction and
  • - rotatable about a horizontal axis ( 24 ),
  • it has two measuring arms ( 17 , 18 ) which are mounted displaceably displaceable perpendicular to its axis of rotation ( 24 ),
  • - The measuring arms ( 17 , 18 ) have in their starting position such a position that a first measuring arm ( 18 ) after moving the two measuring heads ( 19 ) into the pipe to be measured and a second measuring arm ( 17 ) the pipe from towered outside.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Taster als Laserstrahlmeßeinrichtung ausgeführt ist und im wesentlichen aus einem Emissionskopf (15) und einem Detektor (16) besteht.2. Device according to claim 1, characterized in that the button is designed as a laser beam measuring device and consists essentially of an emission head ( 15 ) and a detector ( 16 ). 3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Emissionskopf (15) mit dem ersten Meßarm (18) gekoppelt ist und der Detektor (16) außerhalb des Außendurchmessers des kleinsten auf der Vorrichtung zu messenden Rohres (4) an den Meßkopf (19) angeordnet ist.3. Apparatus according to claim 1, characterized in that the emission head ( 15 ) is coupled to the first measuring arm ( 18 ) and the detector ( 16 ) outside the outer diameter of the smallest tube to be measured on the device ( 4 ) to the measuring head ( 19 ) is arranged. 4. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß an die freien Enden der Meßarme (17, 18) Rollen (20, 21) angebracht sind, welche als Auflagepunkte der Meßarme außen bzw. innen am Rohr (3, 4) zur Anlage zu bringen sind.4. Device according to one of the preceding claims, characterized in that on the free ends of the measuring arms ( 17 , 18 ) rollers ( 20 , 21 ) are attached, which serve as support points of the measuring arms outside or inside on the tube ( 3 , 4 ) Are to be brought. 5. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß als Antrieb der Meßarme (17, 18) ein pneumatischer Antrieb eingesetzt ist.5. Device according to one of the preceding claims, characterized in that a pneumatic drive is used as the drive of the measuring arms ( 17 , 18 ). 6. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das lang gestreckte Aufnahmebett (2) aus mehreren in ihrer Längsachse im Querschnitt V-förmig und verdrehbar angeordneten Rollen (5, 6) besteht.6. Device according to one of the preceding claims, characterized in that the elongated receiving bed ( 2 ) consists of several in its longitudinal axis in cross-section V-shaped and rotatably arranged rollers ( 5 , 6 ). 7. Vorrichtung nach Anspruch (6), dadurch gekennzeichnet, daß die auf jedem der Arme der V-Form angeordneten Rollen (5) bzw. (6) in einem gemeinsamen Gestell um eine mittlere Längsachse des Gestells pendelnd gelagert sind.7. The device according to claim (6), characterized in that the arranged on each of the arms of the V-shape rollers ( 5 ) or ( 6 ) are mounted in a common frame swinging about a central longitudinal axis of the frame. 8. Vorrichtung nach Anspruch (7), dadurch gekennzeichnet, daß jedes der beiden Rollengestelle getrennt anhebbar gelagert und durch einen Näherungssensor gesteuert ist.8. The device according to claim ( 7 ), characterized in that each of the two roller frames is separately raised and controlled by a proximity sensor. 9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Rollen (5, 6) antreibbar ausgebildet sind.9. Device according to one of claims 6 to 8, characterized in that the rollers ( 5 , 6 ) are drivable. 10. Vorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß unterhalb des Aufnahmebettes (2) mehrere, das Aufnahmebett durchragende Tastköpfe (25) angeordnet sind, die bis an das zu messende Rohr (3, 4) nachgiebig heranfahrbar sind.10. Device according to one of the preceding claims, characterized in that below the receiving bed ( 2 ) a plurality of probes projecting through the receiving bed ( 25 ) are arranged, which can be moved up to the tube to be measured ( 3 , 4 ). 11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Tastköpfe (25) von pneumatisch angetriebenen Kolben an das zu messende Rohr (3, 4) herangefahren werden.11. The device according to claim 10, characterized in that the probes ( 25 ) of pneumatically driven pistons to the tube to be measured ( 3 , 4 ) are moved up. 12. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, daß die Tastköpfe (25) als Linearmeßköpfe ausgeführt sind.12. The apparatus according to claim 10 or 11, characterized in that the probe heads ( 25 ) are designed as linear measuring heads.
DE19883816130 1988-05-11 1988-05-11 Device for measuring the length, the diameters, the wall thickness and the ovality of tubes (pipes), in particular of large tubes Granted DE3816130A1 (en)

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DE19883816130 DE3816130A1 (en) 1988-05-11 1988-05-11 Device for measuring the length, the diameters, the wall thickness and the ovality of tubes (pipes), in particular of large tubes

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Cited By (14)

* Cited by examiner, † Cited by third party
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DE4204562A1 (en) * 1992-02-13 1993-08-19 Mannesmann Ag Pipe measuring system for detecting ovality of pipe - scans outer contour of pipe in selected cross=sectional plane with pin and display mounted on ring which acts as rail.
DE4222611A1 (en) * 1992-07-10 1994-01-13 Theysohn Friedrich Fa Pipe measurement device esp. for measuring dia. and wall thickness of extruded plastic pipe - rotatably mounts ultrasonic sensor on mounting ring using bearing ring attached to housing wall
AT269U1 (en) * 1994-11-03 1995-06-26 Weisleitner Otto Weisleitner O CONTOUR TESTING SYSTEM
FR2721703A1 (en) * 1994-06-23 1995-12-29 Europipe France Tubular metallic items dimensions measurement appts.
WO2004025214A1 (en) * 2002-09-12 2004-03-25 Showa Denko K.K. Method and apparatus for measuring shape of tube body
US6954991B2 (en) 2002-09-12 2005-10-18 Showa Denko K.K. Method and apparatus for measuring shape of tubular body
DE102006019354B3 (en) * 2006-04-24 2007-07-19 Rattunde & Co Gmbh Profile measuring device for measuring profile of surface of tube end`s wall, has processing device changing relative position between measuring arm and surface, where relative movement direction is provided inclined to processing direction
US20130199267A1 (en) * 2012-02-08 2013-08-08 Edward B. McCauley Chromatography Column Amenable to Accurate Length Determination and Laser Adapter
DE102012008433A1 (en) * 2012-04-30 2013-10-31 Sms Meer Gmbh Device and method for 3D detection of a pipe
WO2014071487A1 (en) * 2012-11-12 2014-05-15 Whirlpool S.A. System and method for dimensional control of connector tubes
CN105547221A (en) * 2016-01-30 2016-05-04 广东志达精密管业制造有限公司 Automatic detection device of length of steel tube
CN106272069A (en) * 2015-06-11 2017-01-04 徐工集团工程机械股份有限公司 The circularity of a kind of external cylindrical surface grinding and linearity testing apparatus and detection method
CN106382905A (en) * 2016-11-26 2017-02-08 无锡特恒科技有限公司 Polarizing plate thickness measuring mechanism for liquid crystal screen
CN117685920A (en) * 2024-02-02 2024-03-12 西安彬林电子科技有限公司 Pipe size detection device

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CN106428819A (en) * 2016-08-30 2017-02-22 江苏潮华玻璃制品有限公司 Full-length detecting device for penicillin bottles

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204562A1 (en) * 1992-02-13 1993-08-19 Mannesmann Ag Pipe measuring system for detecting ovality of pipe - scans outer contour of pipe in selected cross=sectional plane with pin and display mounted on ring which acts as rail.
DE4222611A1 (en) * 1992-07-10 1994-01-13 Theysohn Friedrich Fa Pipe measurement device esp. for measuring dia. and wall thickness of extruded plastic pipe - rotatably mounts ultrasonic sensor on mounting ring using bearing ring attached to housing wall
FR2721703A1 (en) * 1994-06-23 1995-12-29 Europipe France Tubular metallic items dimensions measurement appts.
AT269U1 (en) * 1994-11-03 1995-06-26 Weisleitner Otto Weisleitner O CONTOUR TESTING SYSTEM
WO2004025214A1 (en) * 2002-09-12 2004-03-25 Showa Denko K.K. Method and apparatus for measuring shape of tube body
US6954991B2 (en) 2002-09-12 2005-10-18 Showa Denko K.K. Method and apparatus for measuring shape of tubular body
DE102006019354B3 (en) * 2006-04-24 2007-07-19 Rattunde & Co Gmbh Profile measuring device for measuring profile of surface of tube end`s wall, has processing device changing relative position between measuring arm and surface, where relative movement direction is provided inclined to processing direction
US7908758B2 (en) 2006-04-24 2011-03-22 Ulrich Rattunde Profile measuring of tube/pipe ends
US20130199267A1 (en) * 2012-02-08 2013-08-08 Edward B. McCauley Chromatography Column Amenable to Accurate Length Determination and Laser Adapter
US9212897B2 (en) * 2012-02-08 2015-12-15 Thermo Finnigan Llc Chromatography column amenable to accurate length determination and laser adapter
DE102012008433A1 (en) * 2012-04-30 2013-10-31 Sms Meer Gmbh Device and method for 3D detection of a pipe
US9057601B2 (en) 2012-04-30 2015-06-16 Sms Meer Gmbh Method of and apparatus for 3-D imaging a pipe
WO2014071487A1 (en) * 2012-11-12 2014-05-15 Whirlpool S.A. System and method for dimensional control of connector tubes
CN106272069A (en) * 2015-06-11 2017-01-04 徐工集团工程机械股份有限公司 The circularity of a kind of external cylindrical surface grinding and linearity testing apparatus and detection method
CN105547221A (en) * 2016-01-30 2016-05-04 广东志达精密管业制造有限公司 Automatic detection device of length of steel tube
CN106382905A (en) * 2016-11-26 2017-02-08 无锡特恒科技有限公司 Polarizing plate thickness measuring mechanism for liquid crystal screen
CN117685920A (en) * 2024-02-02 2024-03-12 西安彬林电子科技有限公司 Pipe size detection device
CN117685920B (en) * 2024-02-02 2024-04-26 西安彬林电子科技有限公司 Pipe size detection device

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