EP0561260A1 - Apparatus for carrying out angle step motions with a pneumatically controlled indexing table - Google Patents

Apparatus for carrying out angle step motions with a pneumatically controlled indexing table Download PDF

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Publication number
EP0561260A1
EP0561260A1 EP93103800A EP93103800A EP0561260A1 EP 0561260 A1 EP0561260 A1 EP 0561260A1 EP 93103800 A EP93103800 A EP 93103800A EP 93103800 A EP93103800 A EP 93103800A EP 0561260 A1 EP0561260 A1 EP 0561260A1
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EP
European Patent Office
Prior art keywords
rotary indexing
piston
drive shaft
locking bolt
indexing table
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.)
Granted
Application number
EP93103800A
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German (de)
French (fr)
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EP0561260B1 (en
Inventor
Willi Naumann
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Individual
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/061—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement by unidirectional means

Definitions

  • the invention relates to a device for executing angular step movements with a pneumatically controlled rotary indexing table.
  • Pneumatic devices for performing angular step movements have already become known, but they take up a relatively large amount of space in terms of width, depth and height.
  • the present invention has for its object to provide a device of the type mentioned, which does not take up much space in width, depth and height Claimed and in which the sequence of movements can be designed so that the starting and braking is gentle.
  • the object is achieved by a device according to claim 1.
  • the space requirement of the device is considerably reduced in that a shaft which is longitudinally displaceable and secured against rotation is mounted in the drive shaft with a lever provided with a driving pin.
  • the space requirement is also reduced in that the arrangement is such that the driver pin engages in a turntable when lifting and moves out of the turntable after completion of an angular step of the drive shaft.
  • a locking bolt moves into a socket on the rotary indexing table synchronously with the removal of the driver pin.
  • a bore 1 is provided laterally in the housing 25 and is connected to a cylinder space 2 in which a piston 3 is arranged to be longitudinally movable.
  • the bore 1 is pressurized with compressed air and has moved the piston 3 downwards and via a control shaft 28 which engages in the piston rod 19 and the rotating segment 20, the shaft 21 mounted in the drive shaft 18 with the lever 22 and the driving pin 23 is raised.
  • a bore 4 and a bore 5 are also provided in the cylinder space 2 (FIG. 3), through which the compressed air then enters the cylinder space 6 and moves the piston 7, and thus the rotary indexing plate 8, to the left.
  • the exhaust air from the cylinder chamber 16 passes through the bore 9, the bore 10, the annular gap 11 and the bore 12 to the outside via an exhaust air throttle, not shown.
  • the end position is indicated by the proximity switch 13, which is confirmed by cams 24 attached to the drive shaft 18.
  • a pneumatic valve not shown, switches the air supply and discharge to the piston 3, and the compressed air passes through the bore 15 into the cylinder chamber 2 and moves the piston 3 upwards.
  • the locking bolt 14 is inserted into the bushing 29 from the rotary indexing plate 8 and thus the driver pin 23 has moved out of the rotary indexing plate 8
  • the compressed air passes through the bore 10 and the bore 9 into the cylinder space 16 and swivels the piston 7 arranged therein into its initial position back.
  • the exhaust air in the cylinder chamber 6 passes through the bore 5 and the bore 4 and through the annular gap 11 and the bore 17 to the outside via an exhaust air throttle, not shown.
  • a sinusoidal movement of the rotary indexing plate 8 is achieved when the pivot point of the drive shaft 18 is located outside the center of the rotary indexing plate 8 and a bush 26 is mounted on the driving pin 23, which engages in one of the grooves 27 during the switching process.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Machine Tool Units (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The apparatus is characterised in that a shaft (21) secured in a longitudinally displaceable manner against rotation and having a lever (22) provided with a driving pin (23) is mounted in the drive shaft (18), arranged in a housing (25), in such a way that the driving pin (23) engages in a bush (29) of the rotary table (8) when lifted and moves out of the rotary table (8) after completion of an angle step of the drive shaft (18), a locking pin (14) moving into a bush (29) of the indexing table (8) in synchronism with the disengagement of the driving pin (23). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Ausführen von Winkelschrittbewegungen mit einem pneumatisch gesteuerten Rundschaltteller.The invention relates to a device for executing angular step movements with a pneumatically controlled rotary indexing table.

Bei der Konzipierung von Maschinen kann es aus konstruktiven Gründen erforderlich sein, einen pneumatischen Rundschalttisch einzusetzen, der in der Breite, Tiefe und Höhe nicht viel Platz in Anspruch nimmt.When designing machines, it may be necessary for structural reasons to use a pneumatic rotary indexing table that does not take up much space in terms of width, depth and height.

Es sind bereits pneumatische Vorrichtungen zum Ausführen von Winkelschrittbewegungen bekanntgeworden, die jedoch verhältnismäßig viel Platz in der Breite, Tiefe und Höhe in Anspruch nehmen.Pneumatic devices for performing angular step movements have already become known, but they take up a relatively large amount of space in terms of width, depth and height.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die in der Breite, Tiefe und Höhe nicht viel Platz in Anspruch nimmt und bei der der Bewegungsablauf so gestaltet werden kann, daß das Anfahren und Abbremsen sanft erfolgt.The present invention has for its object to provide a device of the type mentioned, which does not take up much space in width, depth and height Claimed and in which the sequence of movements can be designed so that the starting and braking is gentle.

Die gestellte Aufgabe wird durch eine Vorrichtung gemäß dem Anspruch 1 gelöst.The object is achieved by a device according to claim 1.

Mit der Vorrichtung gemäß der Erfindung werden mehrere Vorteile erreicht. Zunächst wird der Raumbedarf der Vorrichtung dadurch erheblich vermindert, daß in der Antriebswelle eine längsverschiebbar gegen Verdrehung gesicherte Welle mit einem mit einem Mitnehmerzapfen versehenen Hebel gelagert ist. Die Platzbeanspruchung wird auch dadurch vermindert, daß die Anordnung so getroffen ist, daß der Mitnehmerzapfen beim Anheben in einen Drehteller einrastet und nach Beendigung eines Winkelschrittes der Antriebswelle aus dem Drehteller herausfährt. Synchron mit dem Herausfahren des Mitnehmerzapfens fährt ein Verriegelungsbolzen in eine Buchse vom Rundschaltteller ein.Several advantages are achieved with the device according to the invention. First of all, the space requirement of the device is considerably reduced in that a shaft which is longitudinally displaceable and secured against rotation is mounted in the drive shaft with a lever provided with a driving pin. The space requirement is also reduced in that the arrangement is such that the driver pin engages in a turntable when lifting and moves out of the turntable after completion of an angular step of the drive shaft. A locking bolt moves into a socket on the rotary indexing table synchronously with the removal of the driver pin.

In den Unteransprüchen sind weitere bevorzugte Ausführungen der Vorrichtung nach Anspruch 1 dargestellt.Further preferred embodiments of the device according to claim 1 are shown in the subclaims.

Anhand der Zeichnungen soll am Beispiel einer bevorzugten Ausführungsform die Vorrichtung gemäß der Erfindung näher erläutert werden.Using the drawings, the device according to the invention will be explained in more detail using the example of a preferred embodiment.

In den Zeichnungen zeigt

Fig. 1
eine Vorderansicht der Vorrichtung mit den pneumatischen und elektrischen Anschlüssen.
Fig. 2
zeigt eine Schnittdarstellung von Fig. 1.
Fig. 3
zeigt eine Schnittdarstellung entsprechend der Linie B-B.
Fig. 4
zeigt eine Schnittdarstellung entsprechend der Linie A-A.
Fig. 5
zeigt eine Schnittdarstellung entsprechend der Linie C-C.
Fig. 6
zeigt eine Schemazeichnung entsprechend Anspruch 7.
In the drawings shows
Fig. 1
a front view of the device with the pneumatic and electrical connections.
Fig. 2
shows a sectional view of Fig. 1st
Fig. 3
shows a sectional view corresponding to the Line BB.
Fig. 4
shows a sectional view along the line AA.
Fig. 5
shows a sectional view along the line CC.
Fig. 6
shows a schematic drawing according to claim 7.

Wie sich aus den Figuren 1 und 2 ergibt, ist seitlich im Gehäuse 25 eine Bohrung 1 vorgesehen, die, mit einem Zylinderraum 2 verbunden, in dem ein Kolben 3 längsbeweglich angeordnet ist. Die Bohrung 1 wird mit Preßluft beaufschlagt und hat den Kolben 3 nach unten bewegt und über eine Schaltwelle 28, die in die Kolbenstange 19 und das Drehsegment 20 eingreift, die in der Antriebswelle 18 gelagerte Welle 21 mit dem Hebel 22 und den Mitnehmerzapfen 23 angehoben.As can be seen from FIGS. 1 and 2, a bore 1 is provided laterally in the housing 25 and is connected to a cylinder space 2 in which a piston 3 is arranged to be longitudinally movable. The bore 1 is pressurized with compressed air and has moved the piston 3 downwards and via a control shaft 28 which engages in the piston rod 19 and the rotating segment 20, the shaft 21 mounted in the drive shaft 18 with the lever 22 and the driving pin 23 is raised.

Im Zylinderraum 2 sind ferner eine Bohrung 4 und eine Bohrung 5 vorgesehen (Fig. 3), durch welche die Preßluft anschließend in den Zylinderraum 6 gelangt und den Kolben 7, und somit den Rundschaltteller 8, nach links bewegt. Die Abluft aus dem Zylinderraum 16 gelangt über die Bohrung 9, die Bohrung 10, den Ringspalt 11 und die Bohrung 12 über eine nicht dargestellte Abluftdrossel nach außen.A bore 4 and a bore 5 are also provided in the cylinder space 2 (FIG. 3), through which the compressed air then enters the cylinder space 6 and moves the piston 7, and thus the rotary indexing plate 8, to the left. The exhaust air from the cylinder chamber 16 passes through the bore 9, the bore 10, the annular gap 11 and the bore 12 to the outside via an exhaust air throttle, not shown.

Ist der Schwenkvorgang beendet, wird die Endlage durch den Näherungsschalter 13 angezeigt, die von an der Antriebswelle 18 befestigten Nocken 24 bestätigt wird. In diesem Fall schaltet ein nicht dargestelltes Pneumatikventil die Luftzu- und -abfuhr zum Kolben 3 um, und die Preßluft gelangt über die Bohrung 15 in den Zylinderraum 2 und bewegt den Kolben 3 nach oben. Wenn der Verriegelungsbolzen 14 in die Buchse 29 vom Rundschaltteller 8 eingefahren ist und somit der Mitnehmerzapfen 23 aus dem Rundschaltteller 8 herausgefahren ist, gelangt die Preßluft über die Bohrung 10 und die Bohrung 9 in den Zylinderraum 16 und schwenkt den darin angeordneten Kolben 7 in seine Ausgangsstellung zurück. Die Abluft in dem Zylinderraum 6 gelangt über die Bohrung 5 und die Bohrung 4 sowie über den Ringspalt 11 und die Bohrung 17 über eine nicht dargestellte Abluftdrossel nach außen.When the swiveling process has ended, the end position is indicated by the proximity switch 13, which is confirmed by cams 24 attached to the drive shaft 18. In this case, a pneumatic valve, not shown, switches the air supply and discharge to the piston 3, and the compressed air passes through the bore 15 into the cylinder chamber 2 and moves the piston 3 upwards. When the locking bolt 14 is inserted into the bushing 29 from the rotary indexing plate 8 and thus the driver pin 23 has moved out of the rotary indexing plate 8, the compressed air passes through the bore 10 and the bore 9 into the cylinder space 16 and swivels the piston 7 arranged therein into its initial position back. The exhaust air in the cylinder chamber 6 passes through the bore 5 and the bore 4 and through the annular gap 11 and the bore 17 to the outside via an exhaust air throttle, not shown.

Eine sinusförmige Bewegung des Rundschalttellers 8 wird erreicht, wenn der Drehpunkt der Antriebswelle 18 sich außerhalb vom Mittelpunkt des Rundschalttellers 8 befindet und auf dem Mitnehmerzapfen 23 eine Buchse 26 gelagert ist, die beim Schaltvorgang in eine der Nuten 27 eingreift.A sinusoidal movement of the rotary indexing plate 8 is achieved when the pivot point of the drive shaft 18 is located outside the center of the rotary indexing plate 8 and a bush 26 is mounted on the driving pin 23, which engages in one of the grooves 27 during the switching process.

Claims (7)

Vorrichtung zum Ausführen von Winkelschrittbewegungen mit einem pneumatisch gesteuerten Rundschaltteller, dadurch gekennzeichnet, daß in der in einem Gehäuse (25) angeordneten Antriebswelle (18) eine längsverschiebbar gegen Verdrehung gesicherte Welle (21) mit einem mit einem Mitnehmerzapfen (23) versehenen Hebel (22) gelagert ist, derart, daß der Mitnehmerzapfen (23) beim Anheben in eine Buchse (29) vom Drehteller (8) einrastet und nach Beendigung eines Winkelschrittes der Antriebswelle (18) aus dem Drehteller (8) herausfährt, wobei synchron mit dem Herausfahren des Mitnehmerzapfens (23) ein Verriegelungsbolzen (14) in eine Buchse (29) vom Rundschaltteller (8) einfährt.Device for executing angular step movements with a pneumatically controlled rotary indexing plate, characterized in that in the drive shaft (18) arranged in a housing (25) there is a shaft (21) which is longitudinally displaceable against rotation and has a lever (22) provided with a driving pin (23). is mounted such that the driver pin (23) engages when raised into a bushing (29) from the turntable (8) and moves out of the turntable (8) after completion of an angular step of the drive shaft (18), synchronously with the removal of the driver pin (23) a locking bolt (14) moves into a socket (29) from the rotary indexing table (8). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Welle (21) über eine im Gehäuse (25) gelagerte Schaltwelle (28) mit dem Verriegelungsbolzen (14) verbunden ist.Device according to claim 1, characterized in that the shaft (21) is connected to the locking bolt (14) via a switching shaft (28) mounted in the housing (25). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Verriegelungsbolzen (14) einen Steuerkolben (3) aufweist, der die Zuluft und Abluft zum Zylinderraum (6, 16) steuert, derart, daß die Luft erst in den Zylinderraum (16) gelangt, wenn der Verriegelungsbolzen (14) in den Rundschaltteller (8) eingefahren ist und ebenso die Luft erst den Kolben (7) und somit den Rundschaltteller (8) betätigt, wenn der Verriegelungsbolzen (14) aus dem Rundschaltteller (8) herausgefahren ist und der Mitnehmerzapfen (23) in den Rundschaltteller (8) eingefahren ist und die Abluft über einen Ringspalt (11) im Kolben (3) sowie die Bohrungen (12, 17) nach draußen gelangt.Apparatus according to claim 1, characterized in that the locking bolt (14) has a control piston (3) which controls the supply air and exhaust air to the cylinder space (6, 16) such that the air only enters the cylinder space (16) when the locking bolt (14) is retracted into the rotary indexing table (8) and the air only actuates the piston (7) and thus the rotary indexing plate (8) when the locking bolt (14) has moved out of the rotary indexing table (8) and the driver pin ( 23) is moved into the rotary indexing table (8) and the exhaust air via an annular gap (11) in the piston (3) as well as the bores (12, 17) got outside. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Hebel (22) im oberen Bereich der Antriebswelle (18) längsverschiebbar gegen Verdrehung gesichert ist.Device according to claim 1, characterized in that the lever (22) is secured against rotation in the upper region of the drive shaft (18) so as to be longitudinally displaceable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Endlagen des Kolbens (7) durch Näherungsschalter (13) gemeldet werden, die von an der Antriebswelle (18) befestigten Nocken (24) betätigt werden.Device according to claim 1, characterized in that the end positions of the piston (7) are reported by proximity switches (13) which are actuated by cams (24) attached to the drive shaft (18). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß für andere Winkelschritte (6, 8, 12 etc.) lediglich der Kolben (7) gewechselt wird und der Rundschaltteller (8) andere Teilungen aufweist.Apparatus according to claim 1, characterized in that for other angular steps (6, 8, 12 etc.) only the piston (7) is changed and the rotary indexing plate (8) has other divisions. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß auf den Mitnehmerzapfen (23) eine Rolle (26) angeordnet ist, die in Nuten (27) vom Rundschaltteller (8) eingreifen, um eine sinusförmige Beschleunigung und Verzögerung des Rundschalttellers (8) zu bekommen.Apparatus according to claim 1, characterized in that a roller (26) is arranged on the driver pin (23), which engage in grooves (27) from the rotary indexing plate (8) in order to obtain a sinusoidal acceleration and deceleration of the rotary indexing plate (8).
EP93103800A 1992-03-17 1993-03-10 Apparatus for carrying out angle step motions with a pneumatically controlled indexing table Expired - Lifetime EP0561260B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9203536U DE9203536U1 (en) 1992-03-17 1992-03-17
DE9203536U 1992-03-17

Publications (2)

Publication Number Publication Date
EP0561260A1 true EP0561260A1 (en) 1993-09-22
EP0561260B1 EP0561260B1 (en) 1995-11-22

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EP93103800A Expired - Lifetime EP0561260B1 (en) 1992-03-17 1993-03-10 Apparatus for carrying out angle step motions with a pneumatically controlled indexing table

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DE (2) DE9203536U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937539A1 (en) * 1998-02-24 1999-08-25 Mikron SA Agno Multi-station machine tool
CN102985218A (en) * 2010-04-26 2013-03-20 托尔诺斯有限公司 Indexing of a machine-tool turret
CN109129011A (en) * 2018-09-25 2019-01-04 南京工程学院 A kind of indexing of pin-type load is to determining device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2086849A (en) * 1935-09-05 1937-07-13 Bullard Co Carrier mechanism
US2796776A (en) * 1952-06-04 1957-06-25 Locke Sr Indexing table
DE1210298B (en) * 1959-06-10 1966-02-03 Festo Maschf Stoll G Indexing table for machine tools
FR1443241A (en) * 1965-05-05 1966-06-24 Quercia Flaminaire Sa Improvements made to plates animated by cyclic partial rotations, in particular in machine tools

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212362A (en) * 1963-03-11 1965-10-19 Gleason Works Index mechanism
EP0136492B1 (en) * 1983-08-31 1987-03-04 Festo KG Oscillating-piston motor
DE9105256U1 (en) * 1991-04-29 1992-09-24 Reich, Heinz, 7253 Renningen, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2086849A (en) * 1935-09-05 1937-07-13 Bullard Co Carrier mechanism
US2796776A (en) * 1952-06-04 1957-06-25 Locke Sr Indexing table
DE1210298B (en) * 1959-06-10 1966-02-03 Festo Maschf Stoll G Indexing table for machine tools
FR1443241A (en) * 1965-05-05 1966-06-24 Quercia Flaminaire Sa Improvements made to plates animated by cyclic partial rotations, in particular in machine tools

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MACHINERY AND PRODUCTION ENGINEERING Bd. 108, Nr. 2781, 2. März 1966, BURGESS HILL GB Seiten 468 - 469 'Viltool pack-type indexing tables' *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937539A1 (en) * 1998-02-24 1999-08-25 Mikron SA Agno Multi-station machine tool
US6722236B1 (en) 1998-02-24 2004-04-20 Mikron SA Agno Revolving transfer machine
US6813822B2 (en) 1998-02-24 2004-11-09 Mikron Sa Agno Rotary indexing machine
CN102985218A (en) * 2010-04-26 2013-03-20 托尔诺斯有限公司 Indexing of a machine-tool turret
CN109129011A (en) * 2018-09-25 2019-01-04 南京工程学院 A kind of indexing of pin-type load is to determining device

Also Published As

Publication number Publication date
EP0561260B1 (en) 1995-11-22
DE9203536U1 (en) 1992-05-07
DE59300978D1 (en) 1996-01-04

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