CH686619A5 - Travelling carriage supported by air bearings - Google Patents
Travelling carriage supported by air bearings Download PDFInfo
- Publication number
- CH686619A5 CH686619A5 CH02930/94A CH293094A CH686619A5 CH 686619 A5 CH686619 A5 CH 686619A5 CH 02930/94 A CH02930/94 A CH 02930/94A CH 293094 A CH293094 A CH 293094A CH 686619 A5 CH686619 A5 CH 686619A5
- Authority
- CH
- Switzerland
- Prior art keywords
- plate
- side plate
- support
- travelling carriage
- air
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/267—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to prevent skewness between the relatively slidable members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/02—Sliding-contact bearings
- F16C29/025—Hydrostatic or aerostatic
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Measuring And Other Instruments (AREA)
- Machine Tool Units (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
1 1
CH 686 619 A5 CH 686 619 A5
2 2nd
Beschreibung description
Die vorliegende Erfindung bezieht sich auf einen luftgelagerten Verfahrschlitten gemäss Anspruch 1. The present invention relates to an air-bearing carriage according to claim 1.
Die Auflageplatte sowie die Seitenplatte verfügen über vorzugsweise drei, resp. vier Aussparungen 14, 24, in welchen ein Unterdruck erzeugt wird. Rings um diese Aussparungen sind eine oder mehrere Luft-Austrittsöffnungen 12, 22 angebracht, welche in feine Nuten 13, 23 übergehen. Aus diesen Austrittsöffnungen wird Luft mit einem Überdruck gepresst. Durch die Unterdruck-Kammern 14, 24, wird der Verfahrschlitten an zwei ebene Flächen einer Platte angesaugt. Durch den Überdruck, welcher rings um die Unterdruck-Kammern erzeugt wird, wird der Verfahrschlitten wiederum abgehoben. Es entsteht so ein mittels Drosselventilen genau einstellbarer Luftspalt. Die optimalen Werte dieses Luftspaltes liegen bei 0.001-0.005 mm. The platen and the side plate preferably have three, respectively. four recesses 14, 24, in which a negative pressure is generated. One or more air outlet openings 12, 22, which merge into fine grooves 13, 23, are provided around these cutouts. Air with an overpressure is pressed out of these outlet openings. Through the vacuum chambers 14, 24, the carriage is sucked onto two flat surfaces of a plate. The traversing carriage is lifted again by the overpressure which is generated around the vacuum chambers. This creates an air gap that can be precisely adjusted using throttle valves. The optimal values of this air gap are 0.001-0.005 mm.
Durch die Anordnung von drei resp. vier Unterdruckpartien wird gewährleistet, dass sich die Auflageplatte nicht deformiert, wie dies der Fall sein würde, wenn z.B. nur eine Unterdruck-Kammer in der Mitte der Auflageplatte angeordnet und die Luft-Austrittsöffnungen rings um diese verteilt wären. Zudem ist die Auflageplatte 10 mit einer Drei-Punkt-Auflage optimal gegen Kippbewegungen in allen Richtungen stabil. Der Antrieb in Längsrichtung erfolgt entweder von Hand oder durch einen Elektromotor über ein Reibrad. Die Luftverteilung innerhalb des Schlittens wird durch Bohrungen und Leitungssysteme gewährleistet. Durch unterbrechen der Luftzufuhr kann der Schlitten blockiert werden. By arranging three resp. four vacuum sections ensures that the platen does not deform, as would be the case if e.g. only one vacuum chamber in the middle of the platen and the air outlet openings would be distributed around it. In addition, the support plate 10 with a three-point support is optimally stable against tilting movements in all directions. The drive in the longitudinal direction takes place either by hand or by an electric motor via a friction wheel. The air distribution within the sled is ensured by bores and pipe systems. The carriage can be blocked by interrupting the air supply.
Ein grosser Vorteil der vorliegenden Erfindung besteht darin, dass die Seitenplatte um ihre Längsachse drehbar ist und sich so an den Winkel der ebenen Fläche zur zweiten Fläche einer Platte an-passt. Auf diese Weise wird die Austauschbarkeit gewährleistet, so dass das Gerät auf Platten mit unterschiedlichen Winkeln der ebenen Fläche zur zweiten Fläche eingesetzt werden kann. Dies wirkt sich vorteilhaft auf die Herstellung der Platten aus, da die Winkelgenauigkeit zwischen Auflagefläche und Seitenfläche vernachlässigt werden kann. A great advantage of the present invention is that the side plate is rotatable about its longitudinal axis and thus adapts to the angle of the flat surface to the second surface of a plate. This ensures interchangeability, so that the device can be used on plates with different angles of the flat surface to the second surface. This has an advantageous effect on the production of the plates, since the angular accuracy between the contact surface and the side surface can be neglected.
Dadurch, dass die Seitenplatte, wie im Ausführungsbeispiel gem. Fig 1, auf vier Auflageflächen aufliegt, und im Zentrum zwischen den oberen und unteren beiden Auflagen der Drehpunkt ist, wirkt sich eine Unebenheit der seitlichen Führungsfläche weniger stark auf die Geradlinigkeit in der Messebene aus. Die Genauigkeit resp. Geradlinigkeit der Schlitten-Verfahrbewegung wird also auf diese Weise wesentlich erhöht. The fact that the side plate, as in the embodiment according to Fig. 1, rests on four contact surfaces, and the fulcrum is in the center between the upper and lower two supports, an unevenness of the lateral guide surface has less of an effect on the straightness in the measuring plane. The accuracy resp. The straightness of the carriage movement is thus significantly increased.
Der Verfahrschlitten eignet sich unter anderem zur Messung von Länge, Geradheit, Rechtwinkligkeit und Parallelität in der Qualitätskontrolle. The traversing slide is suitable, among other things, for measuring length, straightness, perpendicularity and parallelism in quality control.
Anstelle der Seitenfläche der Platte 7 zur seitlichen Führung kann ein Lineal 8 mit zwei Auflagestücken 9 eingesetzt werden. Hierbei wird die Auflageplatte 10, wie im obigen Beispiel, auf der ebenen Fläche der Platte 7 aufgelegt. Die Seitenplatte 20 wird in diesem Fall umgekehrt auf der gegenüberliegenden Seite, mit der gleichen Halterung 4 und Lagerung 3, montiert. Der Vorteil auch hier, Instead of the side surface of the plate 7 for lateral guidance, a ruler 8 with two support pieces 9 can be used. Here, the support plate 10, as in the example above, is placed on the flat surface of the plate 7. In this case, the side plate 20 is mounted upside down on the opposite side, with the same holder 4 and bearing 3. The advantage here, too
dass die Winkel des Lineals zur ebenen Fläche der Platte unterschiedlich sein können. that the angle of the ruler to the flat surface of the plate can be different.
Im folgenden wird die Erfindung anhand von Beispielen gezeigt. Die Darstellungen sind der Einfachheit halber schematisch gezeichnet und sind nicht Massstabgetreu. The invention is shown below by means of examples. The representations are drawn schematically for the sake of simplicity and are not to scale.
Fig. 1: Explosionsartig gezeichnete Darstellung. Der Verfahrschlitten ist in diesem Beispiel zur besseren Veranschaulichung umgekehrt gezeichnet. Fig. 1: Exploded illustration. In this example, the traversing slide is drawn in reverse for better illustration.
Fig. 2: Verfahrschlitten zusammen mit einer Platte. Hierbei dient die Seitenfläche der Platte 7 als seitliche Führung. Fig. 2: carriage together with a plate. Here, the side surface of the plate 7 serves as a lateral guide.
Fig. 3: Verfahrschlitten zusammen mit einem Lineal 8 auf der Platte. Hierbei dient die Seitenfläche des Lineals als seitliche Führung. Das Lineal kann bei dieser Anordnung entweder bloss mit seinem Eigengewicht auf zwei Auflagestücken 9 aufliegen, fest montiert sein, oder mittels Unterdruck angesaugt werden. Fig. 3: carriage together with a ruler 8 on the plate. The side surface of the ruler serves as a lateral guide. In this arrangement, the ruler can either rest with its own weight on two support pieces 9, be fixed, or be sucked in by means of a vacuum.
Fig. 4: Verfahrschlitten zusammen mit einem Lineal auf der Platte. Hierbei dient die Seitenfläche des Lineals als seitliche Führung. Um Platz einzusparen, wird der Verfahrschlitten hierbei unter dem Lineal, welches an den äusseren beiden Enden aufliegt, angeordnet. Das Lineal kann bei dieser Anordnung entweder bloss mit seinem Eigengewicht auf zwei Auflagestücken 9 aufliegen, fest montiert sein, oder mittels Unterdruck angesaugt werden. Fig. 4: carriage together with a ruler on the plate. The side surface of the ruler serves as a lateral guide. In order to save space, the carriage is arranged under the ruler, which rests on the outer two ends. In this arrangement, the ruler can either rest with its own weight on two support pieces 9, be fixed, or be sucked in by means of a vacuum.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH02930/94A CH686619A5 (en) | 1994-09-28 | 1994-09-28 | Travelling carriage supported by air bearings |
DE19535531A DE19535531A1 (en) | 1994-09-28 | 1995-09-25 | Air bearing carriage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH02930/94A CH686619A5 (en) | 1994-09-28 | 1994-09-28 | Travelling carriage supported by air bearings |
Publications (1)
Publication Number | Publication Date |
---|---|
CH686619A5 true CH686619A5 (en) | 1996-05-15 |
Family
ID=4244826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH02930/94A CH686619A5 (en) | 1994-09-28 | 1994-09-28 | Travelling carriage supported by air bearings |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH686619A5 (en) |
DE (1) | DE19535531A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2714325A2 (en) * | 2011-05-31 | 2014-04-09 | Korea Institute Of Machinery & Materials | Actively compensated stage having 5-dof motion error compensation and motion error compensating method thereof |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10111359A1 (en) * | 2001-03-08 | 2002-09-26 | Logos Innovationen Gmbh | Lift (elevator) for transportation between floors has gas supply unit to form gas bearing for sliding element |
DE102004012204B3 (en) * | 2004-03-12 | 2005-05-25 | Siemens Ag | Air bearing comprises stationary L-section rail and L-section slide, one wall of stationary rail swiveling to allow accurate adjustment of its orientation |
DE102005050108B4 (en) * | 2005-10-18 | 2009-04-09 | Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Arbeit, dieses vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt | Air bearing and method for adjusting a bearing gap |
-
1994
- 1994-09-28 CH CH02930/94A patent/CH686619A5/en not_active IP Right Cessation
-
1995
- 1995-09-25 DE DE19535531A patent/DE19535531A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2714325A2 (en) * | 2011-05-31 | 2014-04-09 | Korea Institute Of Machinery & Materials | Actively compensated stage having 5-dof motion error compensation and motion error compensating method thereof |
EP2714325A4 (en) * | 2011-05-31 | 2014-11-12 | Korea Mach & Materials Inst | Actively compensated stage having 5-dof motion error compensation and motion error compensating method thereof |
US9079279B2 (en) | 2011-05-31 | 2015-07-14 | Korea Institute Of Machinery & Materials | Actively compensated stage having 5-DOF motion error compensation and motion error compensating method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE19535531A1 (en) | 1996-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |