DE3241534C1

DE3241534C1 - Measuring machine for measuring the outside diameter of cylindrical workpieces as well as the circumferential length and the oblique position of partial surfaces of semi-cylindrical work- pieces

Info

Publication number: DE3241534C1
Application number: DE19823241534
Authority: DE
Inventors: Horst 6209 Hohenstein Kreusel; Friedrich 6500 Mainz Werum
Original assignee: GLYCO METALL WERKE; Glyco Metall Werke Daelen und Loos GmbH
Current assignee: Glyco AG
Priority date: 1982-11-10
Filing date: 1982-11-10
Publication date: 1984-06-28
Also published as: ATA394983A; AT387283B

Abstract

A measuring machine for measuring cylindrical and semi-cylindrical workpieces such as thin-walled sliding bearings and for measuring the circumferential length, the outside diameter and the oblique position of partial surfaces on semi-cylindrical workpieces, is to be used, in accordance with test method A according to draft DIN 31672 according to DIN 1494, part 2, and test method A and B in accordance with draft DIN-ISO 6524, for all measurements, undertaken on thin-walled, cylindrical and semi-cylindrical workpieces, of the outside diameter or circumferential length and of the oblique position of partial surfaces by simple retrofitting of the measuring receptacles and measuring heads while preserving the fundamental design of the measuring machine with regard to the base of the guide frame of the display devices and to the transmission of the test force.

Description

Es wird von einer Meßmaschine ausgegangen, die schnell und einfach für verschiedene Prüfmethoden umgerüstet werden kann. Bei der in den Zeichnungen dar- gestellten Meßmaschine handelt es sich somit grundsätzlich um ein und dieselbe Meßmaschine mit demselben Grundaufbau, bei der zum besseren Verständnis in den F i g. 1 bis 3 die jeweilige Prüfmethode mit der ihr zugeordneten Prüfvorrichtung gezeigt ist. It is assumed that a measuring machine is quick and easy can be converted for different test methods. When in the drawings there- The measuring machine provided is therefore basically around one and the same measuring machine with the same basic structure, for the better Understanding in Figs. 1 to 3 the respective test method with the assigned one Test device is shown.

Die schematisch dargestellte Meßmaschine besteht im wesentlichen aus dem Untergestell 1 mit darin angeordnetem Antriebs-, z. B. Hydraulik-Aggregat 2, dem auf einer Grundplatte 3 befestigten Führungsgestell 4 mit zwei Führungssäulen 6 im Ausführungsbeispiel, der eigentlichen Meßvorrichtung 7 sowie den Anzeiger-Geräten 5. Jedes beliebige Führungsgestell mit Führungen ist hierfür anwendbar. Die Führungssäulen 6 sind in ihrem oberen Endbereich durch einen feststehenden joch-und Querbalken 8 miteinander verbunden. Zwischen den Querbalken 8 und der Grundplatte 3 ist ein an den Führungssäulen 6 gleitender Trägerbalken 9 angeordnet, der bei 10 mit dem die Prüfkraft erzeugenden Hydraulikaggregat 2 verbunden ist. Weist das Führungsgestell 4'mehr als zwei Führungen auf, so sind die Balken 8 und 9 entsprechend als Platten ausgebildet. The measuring machine shown schematically consists essentially from the underframe 1 with arranged therein drive, z. B. Hydraulic unit 2, the guide frame 4 fixed on a base plate 3 with two guide columns 6 in the exemplary embodiment, the actual measuring device 7 and the indicator devices 5. Any guide frame with guides can be used for this. The guide pillars 6 are in their upper end area by a fixed yoke and crossbeam 8 connected to each other. Between the crossbar 8 and the base plate 3 is a arranged on the guide columns 6 sliding support beam 9, which at 10 with the the hydraulic unit 2 generating the test force is connected. Assigns the guide frame 4 'has more than two guides, the bars 8 and 9 are correspondingly as plates educated.

Am Querbalken ist eine auswechselbare Kopfplatte 11 und am Trägerbalken 9 ebenfalls auswechselbare Fußplatten 12 und 13 befestigt, die jeweils Justierstifte, Festanschläge und andere geeignete Befestigungsmittel (nicht dargestellt) aufweisen, die zur Aufnahme und Befestigung der jeweiligen Meßvorrichtung 7 dienen. Zur Anpassung an verschiedene Einbauhöhen sind die Fußplatten 12, 13 ggf. unterschiedlich dick. Die aus den verschiedenen Meßköpfen und Meßaufnahmen bestehenden Prüfvorrichtungen werden später noch beschrieben, Die Zeichnung der Fig. 1 zeigt eine Meßmaschine mit einer Meßvorrichtung 7 zum Messen von zylindrischen Werkstücken, insbesondere Lagerbuchsen. Die Meßvorrichtung 7 besteht aus der. oberen Meßaufnahme 14, die mittels der Kopfplatte 11 an der Unterseite des Querbalkens 8 befestigt ist, und einer unteren Meßaufnahme 15, die auf der Fußplatte 12 des gleitenden Trägerbalkens 9 befestigt ist. There is a replaceable head plate 11 on the crossbeam and on the support beam 9 also replaceable base plates 12 and 13 attached, each with adjustment pins, Have fixed stops and other suitable fasteners (not shown), which serve to hold and fasten the respective measuring device 7. To adapt The base plates 12, 13 may have different thicknesses at different installation heights. The test devices consisting of the various measuring heads and measuring receptacles will be described later. The drawing of FIG. 1 shows a measuring machine with a measuring device 7 for measuring cylindrical workpieces, in particular Bearing bushes. The measuring device 7 consists of the. upper measurement recording 14, which means the head plate 11 is attached to the underside of the cross beam 8, and a lower one Measurement receptacle 15, which is attached to the base plate 12 of the sliding support beam 9 is.

Die nicht näher dargestellten Meßwertaufnehmer, beispielsweise mechanische oder elektronische, sind auf dem feststehenden Querbalken 8 angeordnet. Nach dem Einlegen z, B. einer zu prüfenden Lagerbuchse in die Meßvorrichtung 7 wirkt das Hydraulik-Aggregat 2 auf den beweglichen Trägerbalken 9, und die untere Meßaufnahme 15 bewegt sich in Richtung auf die feststehende obere Meßaufnahme 14. Die Meßwerte können jetzt von dem Meßwertaufnehmer erfaßt und auf der Meßwertanzeige 5 abgelesen werden. The transducers, not shown in detail, for example mechanical or electronic ones, are arranged on the fixed crossbar 8. After this Inserting, for example, a bearing bush to be tested into the measuring device 7 has the effect Hydraulic unit 2 on the movable support beam 9, and the lower measuring receptacle 15 moves in the direction of the fixed upper measuring receptacle 14. The measured values can now be detected by the transducer and read on the measured value display 5 will.

Um nun eine Lagerschalenprüfung nach der Prüfmethode B gemäß Entwurf DIN ISO 6524 (Messen der Umfangslänge und Teilflächen-Schieflage) mit der gleichen Meßmaschine durchführen zu können, wird - wie F i g. 2 zeigt - die komplette Meßaufnahme 14, 15 samt Fußplatte 12 ausgewechselt und ein Meßkopf 16 an die bereits vorhandene Kopfplatte 11 befestigt. Während die neue Meßaufnahme 17 im wesentlichen den gleichen Aufbau wie die Meßaufnahme 15 aufweist, weicht der Aufbau des Meßkopfes 16 grundsätzlich ab. Der Meßkopf 16 ist - wie die Zeichnung der F i g. 2 zeigt - mit zwei Meßbalken 18 ausgestattet, die auf den jeweiligen Teilflächen der zu prüfenden Lagerschale (nicht dargestellt) zur Auflage kommen und die erforderlichen Prüfungen bezüglich Umfangslänge und Schieflage der Teilflächen vornehmen. Die Meßbalken 18 können in ihrem Abstand zueinander auf dem Meßkopf 16 verschoben werden, um verschiedene Lagerdurchmesser erfassen zu können. To now a bearing shell test according to test method B according to the draft DIN ISO 6524 (measuring the circumferential length and partial surface misalignment) with the same To be able to carry out measuring machine, as FIG. 2 shows - the complete measurement recording 14, 15 including the base plate 12 replaced and a measuring head 16 to the existing one Head plate 11 attached. While the new measurement receptacle 17 is essentially the same The structure of the measuring receptacle 15, the structure of the measuring head 16 is fundamentally different away. The measuring head 16 is - like the drawing in FIG. 2 shows - with two measuring bars 18 equipped on the respective sub-surfaces of the bearing shell to be tested (not shown) come to the condition and the necessary tests regarding Make the circumferential length and inclination of the partial surfaces. The measuring bars 18 can in their distance from one another on the measuring head 16 are shifted to different bearing diameters capture to be able to.

Die Durchführung'der Prüfmethode A nach Entwurf DIN 150 6524 ist nach entsprechender Umrüstung ebenfalls mit derselben Meßmaschine durchführbar und in F i g. 3 dargestellt. Entsprechend der völlig anderen Anordnung und Lage von Meßaufnahme und eingesetzter Lagerschale 19 ist die Meßmaschine in der F i g. 3 zum besscren Verständnis um 90 Grad gedreht. The implementation of test method A according to draft DIN 150 6524 is can also be carried out with the same measuring machine after appropriate conversion and in Fig. 3 shown. Corresponding to the completely different arrangement and location of Measurement receptacle and inserted bearing shell 19 is the measuring machine in FIG. 3 rotated 90 degrees for better understanding.

Zur Durchführung der Prüfmethode A ist es notwendig, die bereits genannte Fußplatte 12 - je nach Aufbau der vorhergehenden Prüfmethode - zu entfernen. Auf die jetzt einzusetzende Fußplatte 13 wird nun eine Meßaufnahme 21 eingesetzt, welche einen festen Anschlag 22 aufweist. Wie aus der Zeichnung ersichtlich, ist die Meßaufnahme 21 in einer um 90 Grad versetzten Stellung gegenüber dem Trägerbalken 9 auf diesem befestigt. Diese Anordnung ermöglicht eine mittige Beaufschlagung der Prüfkraft auf der Teilfläche der Gleitlagerschale 19. Zum leichteren Einsetzen der Lagerschale 19 kann die Meßaufnahme 21 auf dem Trägerbalken 9 gegebenenfalls verschiebbar montiert werden. Anstelle der bisherigen Kopfplatte 11 wird der Meßkopf 23 mit nur einem Meßbalken befestigt, der durch die Führungssäule 6 jedoch verdeckt wird. Der Prüfvorgang kann jetzt wie üblich vorgenommen werden. In order to carry out test method A, it is necessary to do this already said footplate 12 - depending on the structure of the previous test method - to be removed. A measuring receptacle 21 is now used on the footplate 13, which is now to be used, which has a fixed stop 22. As can be seen from the drawing, is the measuring receptacle 21 in a position offset by 90 degrees with respect to the support beam 9 attached to this. This arrangement enables a central loading of the Test force on the partial surface of the plain bearing shell 19. For easier insertion of the Bearing shell 19, the measuring receptacle 21 can optionally be displaced on the support beam 9 to be assembled. Instead of the previous head plate 11, the measuring head 23 is only with attached to a measuring beam, which is covered by the guide column 6, however. Of the The test process can now be carried out as usual.

Wie aus der Beschreibung ersichtlich, bleibt der grundsätzliche Aufbau der Meßmaschinen hinsichtlich des Untergestelles, des Führungsgestelles, der Anzeiger-Geräte sowie der Übertragung der Prüfkraft unverändert. As can be seen from the description, the basic structure remains the measuring machines with regard to the underframe, the guide frame, the display devices as well as the transmission of the test force unchanged.

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Claims

Claims: 1. Measuring machine for measuring the outer diameter knife cylindrical workpieces as well as the circumferential length and the partial surface misalignment semi-cylindrical workpieces, especially thin-walled ileit bearing bushes and bearing shells, consisting of a guide frame, e.g. B. Pillar frame, with at least two guideways, z. B. guide pillars and a) a fixed upper yoke and crossbeam b) a movable lower beam and c) one on this beam of Below-acting and articulated drive unit to generate the test force, d a d u r c h g e - indicates that d) on the cross beam (8) and on the support beam (9) Plates (11, 12, 13) are arranged for receiving and attaching measuring heads (16, 23) and measuring receptacles (14, 15, 17, 21) are provided. 2. Measuring machine according to claim 1, characterized in that the plates (11, 12, 13) as a top plate (11) and are designed as foot plates (12, 13), the top plate (11) on the underside of the fixed crossbar (8) and the footplates (12, 13) on the top of the movable support beam (9r are attached.

3. Measuring machine according to claim 1 and 2, characterized in that Head plate (11) and foot plates (12, 13) are interchangeable and can be converted with Devices such as alignment pins, fixed stops and the like.

Fastening means for fastening others to the respective measuring method associated measuring heads (16, 23) and measuring receptacles (14, 15, 17, 21) are equipped.

The invention relates to a measuring machine for measuring the outside diameter cylindrical workpieces as well as the circumferential length and the partial surface inclination of semi-cylindrical Workpieces, in particular thin-walled sliding bearing bushes and bearing shells, consisting from a guide frame, e.g. column frame, with at least two guide tracks, z. B.

Guide pillars and a) a fixed upper yoke and crossbar b) a movable lower beam and c) one on this beam of Below-acting and articulated drive unit to generate the test force.

Known measuring machines of this type (brochure »Measuring device for rolled Bearing bushes «, t; LYCO-METALL-WERKE, Daelen A Hofmann KG, Q104-02-81 -D / 10) on the one hand dgs optional insertion of a split measuring receptacle for bearing bushes tcomp. Draft DIN 31 672) and on the other hand a stop-free measuring receptacle for Bearing shells and a corresponding measuring head with two measuring beams for the test method B (see draft DIN ISO 6824). On the other hand, up to now one had to carry out the Pl'üf method A according to draft DIN ISO 6524 a separate one because of the fundamentally different structure Measuring machine can be used.

The requirement, also the test method A in addition to the test method B being able to use one and the same measuring machine is due to the fact that that the already numerous expensive measurement recordings, which so far for conventional measuring machines according to test method A were in use, also in the future can be used further.

Accordingly, it is the object of the invention to provide a possibility with which the testing of thin-walled bearing bushings according to draft DIN 31 672, according to DIN 1494, part 2, test method A, as well as the test of thin-walled bearing shells according to test method B according to draft DIN ISO 6524 and additionally the test of bearing shells to be carried out in a measuring machine according to test method A, also according to draft DIN ISO 6524 with the help of the simplest possible measures for the respective necessary Conversions.

This object is achieved according to the invention in that on the crossbeam and plates are arranged on the support beam for receiving and fastening of Measuring heads and measuring recordings are provided.

The invention creates the possibility of already existing (Relatively expensive) measurement recordings with little effort in one and the same measuring machine to be used for the respective test method. Even then, this conversion is easy and to be carried out quickly if for test method A, for plain bearing shells that with a fixed stop provided measuring receptacle in a position offset by 90 degrees must be used opposite the support beam. This is done with this method a central loading, so that the required measurement uncertainty and comparability ARE GRILLED. The initial setup of the respective measuring device on one of the three mentioned test methods are carried out according to the invention by easily interchangeable Head and foot plates, with the head and foot plates for fastening and receiving adjustment pins and fixed stops corresponding to the respective measuring head and the measuring receptacles and the like.

The measuring machine according to the invention has the advantage that largely the professions using already available and relatively expensive individual parts can be carried out quickly and safely within the three test methods.

A load cell can also be used on the support beam to measure the test force are provided.

An embodiment of the invention is described below with reference to the Drawing explained in more detail. 1 shows a test device with a test device according to the invention equipped measuring machine in the front view, set up for checking the outside diameter of cylindrical workpieces; F i g. 2 a measuring machine according to FIG. 1 set up for tests according to test method B (circumferential length and partial surface misalignment semi-cylindrical workpieces); F i g. 3 a measuring machine according to FIG. 1 in the Side view, set up for tests according to test method A (circumferential length and partial surface misalignment on semi-cylindrical workpieces).