DE102013015764A1 - Power supply module for intelligent workpiece clamping devices - Google Patents

Abstract

The power supply module (1) for intelligent workpiece clamping devices (4), which can be angularly adjusted and positioned in steps on a machining center by means of a machine pallet or a swivel plate (5.1), consists of two bushings which can be contacted with the same end face. It is space-saving arranged body-integrated and met in addition to its contact-connection function and contact-release function for current-carrying lines (6) also a Schwenkachslager- and a center positioning function. Particular fields of application are self-contained electro-hydraulic workholding devices (4), which have to be pivotable for multi-part and multi-side machining of workpieces on machining centers.

Description

The invention is based on the defined in the preamble of claim 1 power supply module for Intelligent Workpiece clamping devices, via current lines, a data transfer with at least one cutting machining center, with a workpiece handling robot or with an operator station can be realized.

Characteristic of an intelligent workpiece clamping device is that after a sensory detection and detection of dimensional, position and state change data on the workpiece and on the workpiece clamping this, usually by means of electrical lines, to the machine tool control or to the control of a workpiece handling robot for a possible or necessary actuator compensation are transmitted. In this case, a contacting line connection or a contact-releasing separation of the current-carrying lines of the data network should be able to take place via a network connection module. About this power supply module but also the provision of electrical energy among others for the sensors on the workpiece clamping device can be realized.

The state of the art is that in the case of intelligent workpiece clamping devices and also in the case of electrohydraulic workpiece clamping devices equipped with sensors, the electrical data lines and supply lines for electrical energy are externally guided and / or arranged in the functional components integrated into the body. At the contact and transition points of the up and contact elements, the adapter plates directed to the device body and from this to the machine pallet or the stator of the machining center and the machine control out, but in particular in movements between these components implementing and protective elements for at this Make open accessible electrical lines and arrange.

• – DD 138 744 ,
• – DE 10 2011 117 776 und
• – DE 10 2005 051 363 A1

benannt sein.Exemplary of many previously known embodiments of such electrical wiring in and on intelligent workpiece clamping devices with surface direct contacting to the machine tool to here

• - DD 138,744 .
• - DE 10 2011 117 776 and
• - DE 10 2005 051 363 A1

be named.

• – DE 103 50 872 A1

beispielhaft beschrieben, der Anschluss an die elektrische Stromversorgung als lösbare Steckerverbindung ausgebildet. Derartige Leitungs- und Steckverbindungen, die in einer großen anwendungsbezogenen ausgebildeten Vielfalt bekannt sind, werden auch für Anwendungen im Maschinen- und Anlagenbau genutzt.For machine components that are equipped with an electromotive functional drive is as in

• - DE 103 50 872 A1

described by way of example, the connection to the electrical power supply designed as a detachable plug connection. Such line and plug connections, which are known in a large application-trained variety, are also used for applications in mechanical and plant engineering.

They are usually manually operated, connected and disconnected by the operator or maintenance technician, as is the case in the DE 25 43 458 C2 described electrical connection angle connector, for example, is required.

• – eine kontaktierend verbundene und kontaktlösende Leitungsführung elektrischer Leitungen zwischen der Intelligenten Werkstückspannvorrichtung und einem spanenden Bearbeitungszentrum als eine freie, vom unmittelbaren Arbeitsraum abseits gehaltene, flexible Leitungsführung ausgebildet,
• – die beweglichen Teile des Netzanschlussmodules mittels einer linearbeweglichen Antriebsbaugruppe in die Kontaktstellung und in die kontaktgelöste Stellung, durch die Maschinensteuerung prozessabhängig steuerbar, automatisiert bewegbar und
• – das bewegliche Maschinenmodul-Teil, sowie die Kontaktelemente und die Kontaktstifte beider Modul-Teile so ausgebildet, dass eine wiederhol- und positionsgenaue sowie automatisiert ablaufende Kontaktfindung, Kontakthalterung, Kontaktsicherung sowie Isolierung der Kontaktstelle durchführbar sind.

The state of the art in such line connections, with which functional data networking can be realized, is still a in DE 10 2012 014 617 B3 described, so-called power supply module for the realization of a network connection of intelligent workpiece clamping devices. With this solution are

• A contact-connected and contact-releasing routing of electrical lines between the intelligent workpiece clamping device and a cutting machining center is designed as a free flexible line guide held away from the immediate working space,
• - The moving parts of the power supply module by means of a linearly movable drive assembly in the contact position and in the contact-released position, controlled by the machine control process dependent, automated and movable
• - The movable machine module part, as well as the contact elements and the contact pins of both module parts designed so that a repeat and position accurate and automated expiring contact finding, contact holder, contact protection and insulation of the contact point are feasible.

Thus, the task of creating a permanently functioning power supply module, via which the electrical lines of a data network are connected in a contact-connected or contact-releasing manner, was solved for the first time under the conditions of use for intelligent workpiece clamping devices.

• – raumsparend und körperintegriert auszubilden, um den Arbeits- und Spannraum über den Maschinenpaletten und Schwenkplatten für die zu fertigenden Werkstücke, die Spannmittel und die Intelligenten Werkstückspannvorrichtungen vollständig nutzen zu können,
• – gering zu dimensionieren und vereinfacht zu strukturieren,
• – auf eine Steckverbindungsstruktur zu verzichten und
• – eine Mehrfach-Funktion zusätzlich zur Kontakt-Verbindungsfunktion und Kontakt-Lösefunktion unter den Bedingungen einer erforderlichen Winkelverstellbarkeit und wiederholgenauer Mittenpositionierung der Intelligenten Werkstückspannvorrichtungen zu ermöglichen.

However, the variety of training of the intelligent workpiece clamping devices, as part of low-operating production systems in the industrial parts manufacturing, but requires some further training optimizations of the power supply modules. The problem is, power supply modules

• - design space-saving and body-integrated, in order to be able to fully utilize the working and clamping space above the machine pallets and swivel plates for the workpieces to be produced, the clamping devices and the intelligent workpiece clamping devices,
• - small dimensions and simplified structuring,
• - to dispense with a connector structure and
• - To enable a multiple function in addition to the contact connection function and contact release function under the conditions of a required Winkelverstellbarkeit and repeated accurate center positioning of the intelligent workpiece clamping devices.

This problem is solved by the features of claim 1. The power supply module consists of two hollow cylindrical bushings in which the live cables are accommodated. Its frontally contactable device module part forms, integrated into the body in a common center position bore of the superimposed and interconnected and pivotable functional components workpiece clamping device, machine pallet or swivel plate and support table, a plain bearing with common pivot axis. Between these functional components, an upper fixed contact point and a lower, contact-forming and contact-releasing, network connection contact point are arranged on the front side.

The device module part is a contact and centering bushing whose head part is used as a truncated cone and whose socket part is used as a bearing pin for a pivoting machine pallet or swivel plate. Dimensionally and form-fitting to the truncated cone of the head part of the hollow cone is formed a arranged on the underside of the bottom plate of the workpiece clamping device resilient centering. In order for a workpiece clamping device is then positioned repetitive centering when a contacting connection of contact and centering in a pivot plate and the resilient centering in the workpiece clamping device is formed.

The machine module part is designed as a contact sleeve axially movable between the contact position and the contact release position. This is connected via a push rod with a linear motion drive and is mounted in a guide bushing of a arranged on the support table of the machining machining center Schwenkführungs- and support module so by a small contact and contact-release distance back and forth.

Supplementary features of the invention are named in claims 2 and 3. They relate to the placement and assignment of live leads held and positioned in particular well grid structures in the fixture module part and the machine module part.

The invention is shown in simplified form in the figures and explained in more detail as an exemplary embodiment in the following part of the description. Shown in

1 : A sectional view of the power supply module between the functional components

2 : a 3D partial view after 1

3 : A view of the hole grid structure on the head portion of the contact and centering bushing

• – oberen Kontakt- und Zentrierbuchse 1.1.2, die, mit ihrem Buchsenteil 1.1.4, in der Mittenpositions-Bohrung 5.2 der Schwenkplatte 5.1 schwenkbar gelagert ist und mit ihrem Kopfteil 1.1.3 in die federnde Zentrierbuchse 4.3 ragt, die in der Bodenplatte 4.1 einer nicht näher dargestellten Werkstückspannvorrichtung 4 wiederholgenau in einer Mittenposition angeordnet ist, und aus der
• – unteren achsbeweglichen Kontakthülse 1.2.1 die, in einer Führungsbuchse 1.2.3 aufgenommen ist und mit dieser gemeinsam in der Mittenpositions-Bohrung 5.2 in dem Schwenkführungs- und Auflagemodul 5.3, als Teil des Auflagetisches 5 des nicht dargestellten spanenden Bearbeitungszentrum, angeordnet ist,

besteht.In 1 is a center arrangement of the power supply module 1 represented, which consists essentially of the

• - upper contact and centering bush 1.1.2 that, with her socket part 1.1.4 , in the center position hole 5.2 the swivel plate 5.1 is pivotally mounted and with its headboard 1.1.3 into the resilient centering bush 4.3 sticking out in the bottom plate 4.1 a workpiece clamping device, not shown 4 is arranged repetitively in a center position, and from the
• - lower axle movable contact sleeve 1.2.1 the, in a guide bush 1.2.3 is recorded and with this together in the center position hole 5.2 in the Schwenkführungs- and support module 5.3 as part of the support table 5 the machining center, not shown, is arranged,

consists.

The contact and centering bush 1.1.2 forms with its cavity 1.1.5 and the retaining discs arranged on both sides 1.1.6 as well as the retaining disk adapter 3.1 for the transmitted live power and data lines 6 the device module part 1.1 ,

The axially movable contact sleeve 1.2.1 which also has a cavity 1.2.2 and front retaining washers 1.1.6 for the transmitted here bulging current-carrying lines 6 has, together with the over a push rod 2.3 motion connected linear motion drive 2.2 , which is designed as Elektrohubmagnet and support table 5 is arranged, the machine module part 1.2 of the power connection module 1 ,

Its stroke, which is identical to the degree of contacting and contact gap 2.1 the axially movable contact sleeve 1.2.1 contacting or contact-solving at the grid connection contact point 2 covers in the embodiment is 8 mm.

Overlying, form the contact and centering bushing 1.1.2 with its frustoconical headboard 1.1.3 and the resilient centering bushing connected to it 4.3 in the bottom plate 4.1 the workpiece clamping device the fixed contact point 3 of the power connection module 1 ,

The arrangement of the parts of the power supply module 1 in the swivel plate 5.1 and in the swing guide and support modules 5.3 is as an exterior view in 2 shown.

In 3 is as a view of the headboard 1.1.3 the contact and centering bush 1.1.2 a front hole grid arrangement of the current-carrying power and data lines 6 in a front-side retaining disc 1.1.6 shown without holding and clamping elements.

LIST OF REFERENCE NUMBERS

1.

Power supply module

1.1

Device module part

1.1.2

Contact and centering bush

1.1.3

Headboard of 1.1.2

1.1.4

Female part of 1.1.2

1.1.5

Cavity for 6

1.1.6

Front retaining washers for 6

1.2

Machine module part

1.2.1

Axially movable contact sleeve

1.2.2

Cavity for 6

1.2.3

Guide bush in 5.3

Second

Power supply pad

2.1

Contact and contact distance

2.2

linear motion drive for 1.2.1

2.3

Push rod on 2.2

Third

fixed contact point

3.1

Retaining disk adapter for 6

4th

Workpiece clamping device

4.1

baseplate

4.2

Bottom of 4.1

4.3

resilient centering bush

5th

Support table for 4

5.1

swivel plate

5.2

Center position hole in 5.1

5.3

Swivel guide and support module

6th

live power and data lines

6.1

Energy supply lines for 4

6.2

Lines for data transmission

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DD 138744 [0004]
• DE 102011117776 [0004]
• DE 102005051363 A1 [0004]
• DE 10350872 A1 [0005]
• DE 2543458 C2 [0006]
• DE 102012014617 B3 [0007]

Claims (3)

Power connection module ( 1 ) for intelligent workpiece clamping devices ( 4 ), so that live lines ( 6 ) for the power supply and for a data transfer with at least one cutting machining center, a workpiece handling robot or with an operator station contacting connected or disconnected contact, characterized in that it consists of two hollow cylindrical bushings, in which the current-carrying lines ( 6 ), wherein the device module part ( 1.2 ), frontally contactable, a common Schwenkachslager with a common center position hole ( 5.2 ) of the superimposed and interconnected and pivotable functional components - workpiece clamping device ( 4 ) - machine pallet or swivel plate ( 5.1 ) and - support table ( 5 ) of the machining center integrates body-integrated and between these one - fixed contact point ( 3 ) and a - contact-forming and contact-solving grid connection contact point ( 2 ) are arranged on the front side that the device module part ( 1.1 ) a contact and centering bushing ( 1.1.2 ), whose - head part ( 1.1.3 ) is formed as a truncated cone and with this in a dimensionally accurate and form-fitting, shaped as a hollow cone, resilient on the underside ( 4.2 ) of the bottom plate ( 4.1 ) of the workpiece clamping device arranged resilient centering bushing ( 4.3 protrudes and this centering positioned, and their - female part ( 1.1.4 ) as a bearing pin for a pivoting machine pallet or swivel plate ( 5.1 ) and that the machine module part ( 1.2 ) a achsbewegliche between the contact position and the contactless position contact sleeve ( 1.2.1 ), which - via a push rod ( 2.3 ) - by a linear motion drive ( 2.2 ), for example formed as a known Elektrohubmagnet, - in the guide bush ( 1.2.3 ) one - on the support table ( 5 ) - Schwenkführungs- and support module ( 5.3 ) to a low contact and contact distance ( 2.1 ) is movable back and forth. Power connection module ( 1 ) according to claim 1, characterized in that in the cavities ( 1.1.5 ) of the device module part ( 1.1 ) and in the cavity ( 1.2.2 ) of the machine module part ( 1.2 ) aufvolbfähig recorded energy supply lines ( 6.1 ) and data transmission lines ( 6.2 ) by means of both sides of the - contact and centering bushing ( 1.1.2 ), and - achsbeweglichen contact sleeve ( 1.2.1 ), designed as perforated disks - front holding disks ( 1.1.6 ) and in - retaining disk adapters ( 3.1 ) are positioned and clamped in a congruent, contact - locking and coordinated bore grid structure. Power connection module ( 1 ) according to claim 1 and 2, characterized in that the bore grid structure of the front side contacting current-carrying power and data lines ( 6 ) in the front-side retaining washers ( 1.1.6 ) of the power supply module ( 1 ) - a quadrangular arrangement of the energy supply lines ( 6.1 ) as well as - a multi-triangular or quadrangular arrangement of the data transmission lines ( 6.2 ), between and outside the quadrangular arrangement of the energy supply lines ( 6.1 ) arranged and thus - a groupwise rectified bulging of the lines in the contact-releasing state of the machine module part ( 1.2 ) is guaranteed.

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