CH691042A5 - Plug clamp coupling for docking units at a machine tool carrier plate has a sprung ring clamping piston with clamping balls which can be retracted by clamping pins on release through compressed air acting on the ring piston - Google Patents
Plug clamp coupling for docking units at a machine tool carrier plate has a sprung ring clamping piston with clamping balls which can be retracted by clamping pins on release through compressed air acting on the ring piston Download PDFInfo
- Publication number
- CH691042A5 CH691042A5 CH34599A CH34599A CH691042A5 CH 691042 A5 CH691042 A5 CH 691042A5 CH 34599 A CH34599 A CH 34599A CH 34599 A CH34599 A CH 34599A CH 691042 A5 CH691042 A5 CH 691042A5
- Authority
- CH
- Switzerland
- Prior art keywords
- clamping
- piston
- plug
- ring
- balls
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/1071—Retention by balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The plug clamp coupling, to clamp a variety of docking units at a carrier plate for machine tools, etc., has a sprung ring clamping piston (7) with an integrated cone (21), together with clamping balls (10) in a circle of drillings (11) and clamping pins (12). On the application of compressed air to the piston (7), at 6-7 bar, it is pressed upwards and the clamping balls (10) are relieved to release their grip. As the docking unit is pulled clear, the balls (10) are retracted into a ring chamber (22) by the clamping pins (12). Simultaneously, the locking piston bush (14) is pushed by its spring (15) into the drilling (24) of the ball clamping bush (4) and limited by a shoulder to retain the balls (10) while the O-ring (23) seals the housing (1).
Description
Bei bekannten Steckspannkupplungen wird in der Regel mit hydraulischer Kraft (von 60-100 bar) ein Tellerfederpaket vorgespannt. Nachteilig ist bei diesen Produkten, dass sie zusätzlich teure hydraulische Aggregate benötigen und die Installationen viel aufwändiger und komplexer sind. Zudem sind diese Produkte im gekoppelten Zustand nur über das Tellerfederpaket vorgespannt. Weiter sind die Spannkugeln im entkoppelten Zustand offengelegt, und deshalb nicht vor Verschmutzung geschützt, was zu Betriebsstörungen führen kann.
Es ist daher Aufgabe der vorliegenden Erfindung, eine Steckspannkupplung nach Anspruch 1 zu schaffen, welche eine kraftvolle Spannung durch ein Druckfederpaket (8) über einen Konus (21) im Ringspannkolben (7) erzeugt, und somit die Andockplatte einer Andockeinheit (13) mit dem angeschraubten Spannzapfen (12) über die Spannkugeln (10) formschlüssig verbindet und mechanisch verriegelt. Durch Zuführen von Druckluft von 6-7 bar in den Ringzylinderraum (6) wird die Andockeinheit (13) sekundenschnell entkuppelt. Durch das Herausziehen der Andockeinheit (13), wird die Steckspannkupplung automatisch über die Schliessfeder (15) durch die Schliesskolbenbüchse (14) und durch den O-Ring (23) in der Bohrung (24) der Kugelspannbüchse (4) abgedichtet.
Die einfache Konstruktion erlaubt, dass sämtliche Innenteile im Gehäuse (1) durch den Abschlussdeckel (5) zentriert und durch Verbinden mit den Schrauben (32) abgestützt werden. Dadurch entsteht eine kompakte Steckspannkupplung, welche auf engem Raum gebaut wird und sehr leicht montierbar ist. Speziell zu erwähnen ist, dass diese Steckspannkupplung in allen Lagen ein- und aufgebaut werden kann, und somit die Einsatzmöglichkeiten fast unbeschränkt sind. Da die Spannkraft über ein Druckfederpaket (8) wirkt, kann sie auch auf Rotationsmaschinen problemlos eingesetzt werden. Die Ausbildungsmerkmale, welche diese Aufgabe ermöglichen, sind der folgenden Beschreibung und den Patentansprüchen zu entnehmen.
Die Ausführungsbeispiele der Erfindung sind in den Zeichnungen Fig. 1 bis Fig. 3 dargestellt:
Fig. 1 Steckspannkupplung mit verschraubtem Spannzapfen (12), an der Andockplatte (13), in gekuppeltem Zustand im Schnitt.
Fig. 2 Steckspannkupplung in entkuppeltem und druckbeaufschlagtem Zustand mit vorgespanntem Druckfederpaket (8) und geschlossener und abgedichteter Schliesskolbenbüchse (14) im Schnitt.
Fig. 3 Im entkuppelten und druckluftlosen Zustand wird die Schliesskolbenbüchse (14) durch die Schliesskraft der Schliessfeder (15) über die Spannkugeln (10) gespannt und verriegelt (im Schnitt).
In einem einsatzgehärteten Zylindergehäuse (1) mit integrierter Zylinderbohrung (2) sowie einer Versatzbohrung (3), in welcher eine Kugelspannbüchse (4) eingeschoben ist, die stirnseitig durch den O-Ring (26) abgedichtet wird und auf der Rückseite in der Bohrung (27) vom Abschlussdeckel (5) zentriert, welcher in der Zylinderbohrung (17) zentriert ist sowie durch die Schrauben (32) verbunden ist. Dadurch entsteht ein geschlossener Ringzylinderraum (6), welcher durch den schwimmenden Ringspannkolben (7) in den Ringzylinderraum (6) und den Druckfederraum (33) aufgeteilt wird. Der Ringzylinderraum (6) ist durch den O-Ring (26) in der Kugelspannbüchse (4) und den O-Ringen (19 und 20) im Ringkolben (7) abgedichtet.
Im Ringspannkolben (7) ist ein Druckfederpaket (8) gelagert, das dieses in luftdrucklosem Zustand achsial nach unten schiebt und die in der Ringkammer (22) befindenden Spannkugeln (10) über den Konus (21) mit erhöhter Kraft durch die in der Kugelspannbüchse (4) radial angeordneten Kugelbohrungen (11) unter den Spannzapfenhals (16) drückt und diese unten an den Kugelbohrungen (11) abgestützt werden und dadurch die Andockplatte (13) mit verschraubtem Spannzapfen (12) mit der Steckspannkupplung formschlüssig verbindet und verriegelt. Bei druckluftbeaufschlagtem Ringspannkolben (7) (6-7 bar) wird dieser achsial in die oberste Stellung gedrückt und dadurch das Druckfederpaket (8) auf den nächsten Schliessprozess vorgespannt und gleichzeitig werden die Spannkugeln (10) entlastet.
Durch Herausziehen des Spannzapfens (12) mit der Andockplatte (13) werden die Spannkugeln (10) wieder in die freistehende Ringkammer (22) zurückgeschoben und gleichzeitig die vorgespannte Schliesskolbenbüchse (14) in die Bohrung (24) der Kugelspannbüchse (4) gedrückt, wodurch die Spannkugeln (10) abgedeckt und gesichert sind, und das Gehäuse (1) durch den O-Ring (23) abgedichtet wird. Durch das Abschalten der Druckluft wird der Ringspannkolben (7) wieder achsial nach unten geschoben und die Spannkugeln (10) über die 45 DEG Facette (31) in die Rille (25) der Schliesskolbenbüchse (14) gedrückt und dadurch diese mechanisch verriegelt.
In known plug-in couplings, a disk spring assembly is usually preloaded with hydraulic force (from 60-100 bar). The disadvantage of these products is that they also require expensive hydraulic units and that the installations are much more complex and complex. In addition, these products are only pretensioned via the disc spring package when coupled. The decoupling balls are also exposed in the uncoupled state and are therefore not protected against contamination, which can lead to malfunctions.
It is therefore an object of the present invention to provide a plug-in coupling according to claim 1, which generates a powerful tension through a compression spring assembly (8) via a cone (21) in the annular tensioning piston (7), and thus the docking plate of a docking unit (13) with the screwed-on clamping pin (12) via the clamping balls (10) in a positive connection and mechanically locked. The docking unit (13) is uncoupled in a matter of seconds by supplying compressed air of 6-7 bar to the ring cylinder chamber (6). By pulling out the docking unit (13), the plug-in coupling is automatically sealed by the closing spring (15) through the closing piston bush (14) and by the O-ring (23) in the bore (24) of the ball clamping bush (4).
The simple construction allows all inner parts in the housing (1) to be centered by the end cover (5) and to be supported by connecting with the screws (32). This creates a compact plug-in coupling, which is built in a confined space and is very easy to assemble. It should be mentioned in particular that this plug-in coupling can be installed and installed in all positions, and the application possibilities are therefore almost unlimited. Since the clamping force acts via a compression spring assembly (8), it can also be used on rotary machines without any problems. The training features that enable this task can be found in the following description and the patent claims.
The exemplary embodiments of the invention are shown in the drawings in FIGS. 1 to 3:
Fig. 1 plug-in coupling with screwed clamping pin (12) on the docking plate (13), in the coupled state in section.
Fig. 2 plug-in coupling in the uncoupled and pressurized state with pretensioned compression spring assembly (8) and closed and sealed closing piston sleeve (14) in section.
Fig. 3 In the uncoupled and compressed air-free state, the closing piston sleeve (14) is tensioned and locked (on average) by the closing force of the closing spring (15) over the clamping balls (10).
In a case-hardened cylinder housing (1) with an integrated cylinder bore (2) as well as an offset bore (3), in which a spherical clamping bush (4) is inserted, which is sealed on the front side by the O-ring (26) and on the back in the bore ( 27) centered on the end cover (5), which is centered in the cylinder bore (17) and is connected by the screws (32). This creates a closed ring cylinder chamber (6) which is divided into the ring cylinder chamber (6) and the compression spring chamber (33) by the floating ring clamping piston (7). The ring cylinder chamber (6) is sealed by the O-ring (26) in the ball bushing (4) and the O-rings (19 and 20) in the ring piston (7).
A compression spring assembly (8) is mounted in the ring tensioning piston (7), which pushes it axially downwards in the unpressurized state and the tensioning balls (10) located in the ring chamber (22) via the cone (21) with increased force by the in the spherical clamping bush ( 4) presses the radially arranged ball bores (11) under the clamping pin neck (16) and these are supported at the bottom on the ball bores (11), thereby positively connecting and locking the docking plate (13) with the screwed clamping pin (12) to the plug-in coupling. When the ring-tensioning piston (7) (6-7 bar) is pressurized with air, it is pressed axially into the uppermost position, thereby preloading the compression spring assembly (8) for the next closing process and simultaneously relieving the tensioning balls (10).
By pulling out the clamping pin (12) with the docking plate (13), the clamping balls (10) are pushed back into the free-standing annular chamber (22) and at the same time the preloaded closing piston bushing (14) is pressed into the bore (24) of the ball clamping bushing (4) the clamping balls (10) are covered and secured, and the housing (1) is sealed by the O-ring (23). When the compressed air is switched off, the annular tensioning piston (7) is pushed axially downwards again and the tensioning balls (10) are pressed into the groove (25) of the closing piston sleeve (14) via the 45 ° facet (31), thereby locking them mechanically.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH34599A CH691042A5 (en) | 1999-02-25 | 1999-02-25 | Plug clamp coupling for docking units at a machine tool carrier plate has a sprung ring clamping piston with clamping balls which can be retracted by clamping pins on release through compressed air acting on the ring piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH34599A CH691042A5 (en) | 1999-02-25 | 1999-02-25 | Plug clamp coupling for docking units at a machine tool carrier plate has a sprung ring clamping piston with clamping balls which can be retracted by clamping pins on release through compressed air acting on the ring piston |
Publications (1)
Publication Number | Publication Date |
---|---|
CH691042A5 true CH691042A5 (en) | 2001-04-12 |
Family
ID=4184904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH34599A CH691042A5 (en) | 1999-02-25 | 1999-02-25 | Plug clamp coupling for docking units at a machine tool carrier plate has a sprung ring clamping piston with clamping balls which can be retracted by clamping pins on release through compressed air acting on the ring piston |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH691042A5 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2119519A1 (en) * | 2008-05-07 | 2009-11-18 | Röhm GmbH | Chuck head |
CN102371373A (en) * | 2010-08-12 | 2012-03-14 | 荣田精机股份有限公司 | Cutter-clamping device for milling machine and lathe |
CN103126070A (en) * | 2011-12-01 | 2013-06-05 | 豪尼机械制造股份公司 | A transport drum used for the transverse axial transport of rod-shaped articles for a tobacco processing industry |
CN103126069A (en) * | 2011-12-01 | 2013-06-05 | 豪尼机械制造股份公司 | Transport drum for the transverse axial transport of rod-shaped items for the tobacco processing industry |
CN108856769A (en) * | 2018-07-20 | 2018-11-23 | 迈凯实金属技术(苏州)有限公司 | A kind of rapid interchangeable chuck structure |
WO2020098854A1 (en) * | 2018-11-16 | 2020-05-22 | Martin Zimmer | Clamping system with a stroke-monitored clamping device |
DE102018009226A1 (en) * | 2018-11-26 | 2020-05-28 | Günther Zimmer | Clamping system consisting of a clamping device and a combination bolt |
-
1999
- 1999-02-25 CH CH34599A patent/CH691042A5/en not_active IP Right Cessation
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2119519A1 (en) * | 2008-05-07 | 2009-11-18 | Röhm GmbH | Chuck head |
CN102371373A (en) * | 2010-08-12 | 2012-03-14 | 荣田精机股份有限公司 | Cutter-clamping device for milling machine and lathe |
CN102371373B (en) * | 2010-08-12 | 2014-07-16 | 荣田精机股份有限公司 | Cutter-clamping device for milling machine and lathe |
CN103126070A (en) * | 2011-12-01 | 2013-06-05 | 豪尼机械制造股份公司 | A transport drum used for the transverse axial transport of rod-shaped articles for a tobacco processing industry |
CN103126069A (en) * | 2011-12-01 | 2013-06-05 | 豪尼机械制造股份公司 | Transport drum for the transverse axial transport of rod-shaped items for the tobacco processing industry |
EP2599396A3 (en) * | 2011-12-01 | 2014-04-30 | HAUNI Maschinenbau AG | Transport drum, formed and equipped for the transverse axial transport of rod-shaped articles for the tobacco processing industry |
CN108856769A (en) * | 2018-07-20 | 2018-11-23 | 迈凯实金属技术(苏州)有限公司 | A kind of rapid interchangeable chuck structure |
WO2020098854A1 (en) * | 2018-11-16 | 2020-05-22 | Martin Zimmer | Clamping system with a stroke-monitored clamping device |
DE102018009227A1 (en) * | 2018-11-26 | 2020-05-28 | Günther Zimmer | Clamping system with a stroke-monitored clamping device |
DE102018009226A1 (en) * | 2018-11-26 | 2020-05-28 | Günther Zimmer | Clamping system consisting of a clamping device and a combination bolt |
WO2020108675A1 (en) * | 2018-11-26 | 2020-06-04 | Martin Zimmer | Tensioning system consisting of a tensioning device and a combination bolt |
DE102018009226B4 (en) | 2018-11-26 | 2020-06-10 | Günther Zimmer | Clamping system consisting of a clamping device and a combination bolt |
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Date | Code | Title | Description |
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PL | Patent ceased |