EP1201370B1 - Electrically actuated workpiece clamping device - Google Patents
Electrically actuated workpiece clamping device Download PDFInfo
- Publication number
- EP1201370B1 EP1201370B1 EP01124018A EP01124018A EP1201370B1 EP 1201370 B1 EP1201370 B1 EP 1201370B1 EP 01124018 A EP01124018 A EP 01124018A EP 01124018 A EP01124018 A EP 01124018A EP 1201370 B1 EP1201370 B1 EP 1201370B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- clamping device
- hollow shaft
- motors
- clamping
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
Definitions
- the invention relates to an electrically operable workpiece clamping device according to the preamble of claim 1, from Document EP 0 243 599 A is known.
- Such a clamping device is also for example according to the DE 36 38 526 C1 known.
- the axial assignment of electric drives to the clamping head are the far more frequently used Pneumatic or hydraulic drives in the form of actuating cylinders be replaced.
- the problem is the Incorporation of force at electric drives at the expense of width such tensioners goes, since a higher Capacity of the electric drive in the diameter of the Electric motor reflected, which is then inevitably larger as the width of the clamping head.
- tensioning devices for example in the body shop However, basically a narrow width possible desired, but at the required high power input can not be maintained.
- the innovation is the object of such a clamping device in terms of their drive to train and to improve that despite its high performance only a comparatively narrow width required and is conveniently accessible when needed.
- the means for converting the rotary motion into a translatory Movements are made up of the following elements:
- the hollow shaft engaging drive pinion On the output shafts of the two motors are with the gear arranged the hollow shaft engaging drive pinion.
- the hollow shaft and the threaded spindle is preferably a with the hollow shaft rotatable and with the threaded spindle in engagement standing transmission element arranged, preferably in the form a ball nut is formed.
- the gear and the engaged with this Drive pinions are on arranged lower end portion of the hollow shaft. This part the drive is therefore easily accessible from below if necessary.
- a further advantageous embodiment is that the lower end of the hollow shaft the bottom of the housing at least flush with this conclusive and with a Foreign drive connection element is provided. This leaves the Clamping device also operable in case of power failure or engine damage.
- the electrically operated clamping device consists of a on a chuck 1 arranged electric drive 2 for actuation a threaded spindle 3, which arranged with the in the chuck 1 Actuating mechanism SM for the clamping arm 4 in operative connection stands.
- the chuck 1 with its adjusting mechanism SM and its function requires no special explanation, since well known, quite apart from the fact that such a Chuck or such a fixture also readily with a pneumatic or hydraulic actuating cylinder let operate, with only the threaded spindle 3 through the Push rod of the respective actuating cylinder would be replaced.
- FIGS. 1 and 3 For the clamping device according to the invention is now under reference to FIGS. 1 and 3 substantially that in a housing. 5 arranged electric drive 2 of two in their performance adding, synchronously connected motors 6 is formed, the mechanically with means 7 for converting their rotary motion in a translational movement of the with the threaded spindle. 3 related first member of the actuating mechanism SM are coupled.
- the axles 8 of the motors 6 and the center between the axes 8 extending axis 9 of the threaded spindle 3 are perpendicular to an imaginary line 10 (see FIG.
- the slightly larger (by twice the wall thickness of the housing 5) is as the diameter D of the motors 6, for the otherwise commercially advantageous for cost reasons Large series engines come for use.
- this distance A is dimensioned such that that this is preferably the same or substantially the same Width B of the saddle mounted on the housing 5 clamping head. 1 is.
- translational movement consists of an inter-relationship the motors 6 rotatably mounted, with a gear 12th provided hollow shaft 13, in which the threaded spindle 3 at Axial adjustment dips.
- On the output shafts 14 of the two Motors 6 are connected to the gear 12 of the hollow shaft 13 in Engaging drive pinion 15 arranged, whose rotation so that the hollow shaft 13 translated translated accordingly and whose turn turn by preferably as ball nut trained transmission element 16 as translational adjustment the threaded spindle 3 is transmitted.
- This transmission element 16 or this ball nut is, as shown in Fig. 1, fixed in a pot-like extension 17 housed at the upper end of the hollow shaft 13, which Extension 17 at the same time and as indicated to the axial and Radial storage of the hollow shaft 13 at the upper end with is exploited.
- this embodiment according to FIG. 1 is So the non-rotating threaded spindle 3 in direct connection with the first link of the actuating mechanism.
- the gear 12 and the meshing with this drive pinion 15 of the two motors 6 are advantageous and easily accessible at the lower end of the hollow shaft 13, as shown in Fig. 1, placed, the lower, the lower end portion of the hollow shaft 13, the gear 12 and the Drive pinion 15 receiving part of the housing 5 this as detachable housing part 5 'is assigned.
- FIG. 1 Also shown in FIG. 1 is the advantageous proviso that the lower end 18 of the hollow shaft 13, the bottom 19 of the Housing 5 passes through and with a foreign-drive connection element 20 is provided.
- this element is simply um a polygonal blind hole into which a corresponding example Allen key is inserted, so that in case of failure the motor drive by hand an adjustment of the clamping device to be able to make.
- Control electronics housing 22 attached, which in the chuck 1 in conventionally arranged End einslechtgru 23 in Connection stands.
- the housing 5 in the region of the motors 6 with wall openings Be provided 24 through which a direct heat radiation is possible. Apart from that is through the in particular in the field of engine arrangement thin-walled housing 5 per se at least for adequate heat dissipation taken care of.
- the housing 6 receiving the motors 6 it may this advantageously be formed of two half-shells 25, the produced in the molding process, for example, die casting can be.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Gripping On Spindles (AREA)
- Transmission Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine elektrisch betätigbare Werkstück-Spannvorrichtung
gemäß dem Oberbegriff des Anspruchs 1, die aus
dem Dokument EP 0 243 599 A bekannt ist.The invention relates to an electrically operable workpiece clamping device
according to the preamble of
Eine derartige Spannvorrichtung ist auch beispielsweise nach der DE 36 38 526 C1 bekannt. Mit der axialen Zuordnung von Elektroantrieben zum Spannkopf sollen die bislang weitaus häufiger benutzten Pneumatik- oder Hydraulikantriebe in Form von Betätigungszylindern ersetzt werden. Problematisch ist dabei die Krafteinbringung, die bei Elektroantrieben auf Kosten der Baubreite solcher Spannvorrichtungen geht, da sich ein höheres Leistungsvermögen des Elektroantriebes im Durchmesser des Elektromotors niederschlägt, der dann zwangsläufig größer ist als die Baubreite des Spannkopfes. Mit Rücksicht auf die Verwendung solcher Spannvorrichtungen beispielsweise im Karosseriebau wird jedoch grundsätzlich eine möglichst schmale Baubreite angestrebt, die jedoch bei verlangter hoher Krafteinbringung nicht einzuhalten ist.Such a clamping device is also for example according to the DE 36 38 526 C1 known. With the axial assignment of electric drives to the clamping head are the far more frequently used Pneumatic or hydraulic drives in the form of actuating cylinders be replaced. The problem is the Incorporation of force at electric drives at the expense of width such tensioners goes, since a higher Capacity of the electric drive in the diameter of the Electric motor reflected, which is then inevitably larger as the width of the clamping head. With regard to the use such tensioning devices, for example in the body shop However, basically a narrow width possible desired, but at the required high power input can not be maintained.
Ausgehend von einer Spannvorrichtung der gattungsgemäßen Art, liegt der Neuerung die Aufgabe zugrunde, eine solche Spannvorrichtung hinsichtlich ihres Antriebes dahingehend auszubilden und zu verbessern, daß dieser trotz hohem Leistungsvermögens nur eine vergleichsweise schmalen Baubreite verlangt und im Bedarsfall bequem zugänglich ist.Starting from a clamping device of the generic type, the innovation is the object of such a clamping device in terms of their drive to train and to improve that despite its high performance only a comparatively narrow width required and is conveniently accessible when needed.
Diese Aufgabe ist mit einer Spannvorrichtung der eingangs
geannten Art nach der Erfindung durch die im
Anspruch 1 genannten Merkmale gelöst.This object is achieved with a clamping device of the beginning
geannten type of the invention by the im
Mit dieser erfindungsgemäßen Ausbildung ist die gestellte Forderung erfüllt. Die Alternativangabe "direkt oder indirekt in Wirkverbindung stehend" wird noch näher erläutert. With this inventive design is the demand Fulfills. The alternative statement "directly or indirectly in Active compound standing "will be explained in more detail.
Die Einrichtungen zur Wandlung der Drehbewegung in eine translatorische Bewegung sind aus folgenden Elementen gebildet:The means for converting the rotary motion into a translatory Movements are made up of the following elements:
Zwischen den Motoren ist eine drehbar gelagerte, mit einem Zahnrad versehene Hohlwelle angeordnet, in die die Gewindespindel bei Rückstellung bzw. Öffnung der Spannvorrichtung eintauchen kann.Between the engines is a rotatably mounted, with one Geared hollow shaft arranged in the threaded spindle upon return or opening of the clamping device can dive.
Auf den Abtriebswellen der beiden Motoren sind mit dem Zahnrad der Hohlwelle im Eingriff stehende Antriebsritzel angeordnet. Zwischen der Hohlwelle und der Gewindespindel ist vorzugsweise ein mit der Hohlwelle drehbares und mit der Gewindespindel im Eingriff stehendes Übertragungselement angeordnet, das bevorzugt in Form einer Kugelumlaufmutter ausgebildet ist.On the output shafts of the two motors are with the gear arranged the hollow shaft engaging drive pinion. Between the hollow shaft and the threaded spindle is preferably a with the hollow shaft rotatable and with the threaded spindle in engagement standing transmission element arranged, preferably in the form a ball nut is formed.
Das Zahnrad und die mit diesem im Eingriff stehenden Antriebsritzel sind am unteren Endbereich der Hohlwelle angeordnet. Dieser Teil des Antriebes ist daher bequem von unten her im Bedarfsfall zugänglich.The gear and the engaged with this Drive pinions are on arranged lower end portion of the hollow shaft. this part the drive is therefore easily accessible from below if necessary.
Vorteilhafte Weiterbildungen bestehen in Folgendem:
Der Abstand der Seitenwände des die beiden Motoren aufnehmenden
Gehäuses zueinander ist gleich oder im wesentlichen gleich der
Breite des auf dem Gehäuse aufgesattelten Spannkopfes, was
nichts anderes bedeutet, als daß die vom jeweiligen Spannkopf
her vorgegebene Breite für das Motorengehäuse voll ausgenutzt wird.Advantageous developments consist in the following:
The distance between the side walls of the housing receiving the two motors to each other is equal to or substantially equal to the width of the chucked on the housing chuck, which means nothing else than that of the respective clamping head predetermined width for the motor housing is fully utilized.
Diese im wesentlichen bekannten Einrichtungsbauteile schaffen in Verbindung mit dem erfindungsgemäßen Einbau zweier Motoren für dem Antrieb der Spannvorrichtung die Voraussetzung für eine möglichst kompakte Bauweise und auch zweckmäßige Montagehandhabung des Antriebes, und zwar nicht nur hinsichtlich eines möglichst geringen Abstandes der Seitenwände des Gehäuse, sondern auch hinsichtlich möglichst geringer Abmessungen in Erstreckungsrichtung des Spannarmes der Spannvorrichtung. So kann das vorerwähnte Übertragungselement in einer topfartigen Erweiterung am oberen Ende der Hohlwelle angeordnet sein. In Verbindung damit kann der untere, den spannarmfernen Endbereich der Hohlwelle, das Zahnrad und die Antriebsritzel aufnehmende Teil des Gehäuses diesem als lösbares Gehäuseteil zugeordnet sein. Damit ist eine günstige Montage geschaffen.Create these essentially known Einrichtungsbauteile in connection with the installation according to the invention of two motors for the drive of the clamping device, the prerequisite for a compact design as possible and also suitable assembly handling of the drive, and not just in terms of one the smallest possible distance of the side walls of the housing, but also with regard to the smallest possible dimensions in the extension direction the tensioning arm of the tensioning device. So can the aforementioned transmission element in a pot-like extension be arranged at the upper end of the hollow shaft. In connection Thus, the lower, the clamping arm remote end portion of the hollow shaft, the gear and the drive pinion receiving part of Housing this be assigned as a detachable housing part. In order to is a cheap installation created.
Eine weitere vorteilhafte Ausbildung besteht darin, daß das untere Ende der Hohlwelle den Boden des Gehäuses mindestens bündig mit diesem abschließend durchgreift und mit einem Fremdantriebs-Anschlußelement versehen ist. Dadurch bleibt die Spannvorrichtung auch bei Stromausfall oder Motorschaden betätigbar.A further advantageous embodiment is that the lower end of the hollow shaft the bottom of the housing at least flush with this conclusive and with a Foreign drive connection element is provided. This leaves the Clamping device also operable in case of power failure or engine damage.
Die erfindungsgemäße Spannvorrichtung und weitere vorteilhafte Ausführungsformen werden nachfolgend anhand der zeichnerischen Darstellung eines Ausführungsbeispieles näher erläutert.The tensioning device according to the invention and further advantageous Embodiments will be described below with reference to the drawings Representation of an embodiment explained in more detail.
Es zeigt
- Fig. 1
- einen Längsschnitt durch die Spannvorrichtung mit ihrem Elektroantrieb;
- Fig. 2
- in Seitenansicht die Spannvorrichtung gemäß Fig. 1 mit nur hälftig dargestelltem Spannkopfgehäuse und
- Fig. 3
- schematisch einen Schnitt durch den Antrieb in Höhe der beiden Motoren.
- Fig. 1
- a longitudinal section through the clamping device with its electric drive;
- Fig. 2
- in side view, the clamping device of FIG. 1 with only half illustrated Spannkopfgehäuse and
- Fig. 3
- schematically a section through the drive at the level of the two motors.
Die elektrisch betätigbare Spannvorrichtung besteht aus einem
an einem Spannkopf 1 angeordneten Elektroantrieb 2 zur Betätigung
einer Gewindespindel 3, die mit der im Spannkopf 1 angeordneten
Stellmechanik SM für den Spannarm 4 in Wirkverbindung
steht. Der Spannkopf 1 mit seiner Stellmechanik SM und
dessen Funktion bedarf dabei keine besonderen Erläuterung, da
hinlänglich bekannt, ganz abgesehen davon, daß sich ein solcher
Spannkopf bzw. eine solche Spannvorrichtung auch ohne weiteres
mit einem pneumatischen oder hydraulischen Betätigungszylinder
betreiben ließe, wobei lediglich die Gewindespindel 3 durch die
Schubstange des jeweiligen Betätigungszylinders ersetzt würde.The electrically operated clamping device consists of a
on a
Für die erfindungsgemäße Spannvorrichtung ist nun unter Verweis
auf die Fig. 1 und 3 wesentlich, daß der in einem Gehäuse 5
angeordnete Elektroantrieb 2 aus zwei sich in ihrer Leistung
addierenden, synchron geschalteten Motoren 6 gebildet ist, die
mechanisch mit Einrichtungen 7 zur Wandlung ihrer Drehbewegung
in eine translatorische Bewegung des mit der Gewindespindel 3
in Verbindung stehenden ersten Gliedes der Stellmechanik SM
gekoppelt sind. Die Achsen 8 der Motoren 6 und die sich mittig
zwischen deren Achsen 8 erstreckende Achse 9 der Gewindespindel
3 stehen senkrecht auf einer gedachten Geraden 10 (siehe Fig.
3) und die sich zur Geraden 10 parallel erstreckenden Seitenwände
11 des Gehäuses 5 sind mit einem Abstand A zueinander
distanziert, der geringfügig größer (um die doppelte Wandstärke
des Gehäuses 5) ist als der Durchmesser D der Motoren 6, für
die im übrigen aus Kostengründen vorteilhaft handelserhältliche
Großserien-Motoren zur Verwendung kommen.For the clamping device according to the invention is now under reference
to FIGS. 1 and 3 substantially that in a housing. 5
arranged
Unter Verweis auf Fig. 2 ist dieser Abstand A derart bemessen,
daß dieser vorzugsweise gleich oder im wesentlichen gleich der
Breite B des auf dem Gehäuse 5 aufgesattelten Spannkopfes 1
ist.With reference to FIG. 2, this distance A is dimensioned such that
that this is preferably the same or substantially the same
Width B of the saddle mounted on the
Die Einrichtungen 7 zur Wandlung der Drehbewegung in eine
translatorische Bewegung bestehen im Einzelnen aus einer zwischen
den Motoren 6 drehbar gelagerten, mit einem Zahnrad 12
versehenen Hohlwelle 13, in die die Gewindespindel 3 bei
Axialverstellung eintaucht. Auf den Abtriebswellen 14 der beiden
Motoren 6 sind mit dem Zahnrad 12 der Hohlwelle 13 im
Eingriff stehende Antriebsritzel 15 angeordnet, deren Drehung
damit der Hohlwelle 13 entsprechend übersetzt vermittelt und
deren Drehung wiederum per vorzugsweise als Kugelumlaufmutter
ausgebildetem Übertragungselement 16 als translatorische Verstellbewegung
der Gewindespindel 3 übertragen wird.The
Dieses Übertragungselement 16 bzw. diese Kugelumlaufmutter ist,
wie aus Fig. 1 ersichtlich, fest in einer topfartigen Erweiterung
17 am oberen Ende der Hohlwelle 13 untergebracht, welche
Erweiterung 17 gleichzeitig und wie angedeutet zur Axial- und
Radiallagerung der Hohlwelle 13 an deren oberen Endbereich mit
ausgenutzt ist. Bei dieser Ausführungsform gemäß Fig. 1 steht
also die nicht drehende Gewindespindel 3 in direkter Verbindung
mit dem ersten Glied der Stellmechanik.This
Möglich ist aber auch, was nicht besonders dargestellt ist, da
ohne weiteres vorstellbar, eine kinematische Umkehrung dahingehend,
daß die Hohlwelle 13 mit der Stellmechanik SM verbunden
ist. Die Erweiterung 17 ist dabei nach unten gerichtet und die
dann von den Zahnrädern 12, 15 angetriebene Gewindespinel 3
greift von unten her in die Hohlwelle 13 ein. Statt des die
Erweiterung 17 umfassenden Nadellagers in Fig.1 muß dann für
eine verdrehfeste, aber eine Axialverschiebung zulassende Halterung
der Hohlwelle 13 gesorgt werden, d.h., bei einer solchen
Ausführungsform steht die Gewindespindel 3 mit der Stellmechanik
via Hohlwelle 13 in indirekter Wirkverbindung. Bevorzugt
wird jedoch die in Fig. 1 dargestellte Ausführungsform, da
diese mit geringerem Aufwand verbunden ist.It is also possible, which is not particularly shown because
readily imaginable, a kinematic reversal to that effect,
that the
Das Zahnrad 12 und die mit diesem im Eingriff stehenden Antriebsritzel
15 der beiden Motoren 6 sind vorteilhaft und
leicht zugriffszugänglich am unteren Endbereich der Hohlwelle
13, wie in Fig. 1 dargestellt, plaziert, wobei der untere, den
unteren Endbereich der Hohlwelle 13, das Zahnrad 12 und die
Antriebsritzel 15 aufnehmende Teil des Gehäuses 5 diesem als
lösbares Gehäuseteil 5' zugeordnet ist.The
Ebenfalls mit in Fig. 1 dargestellt ist die vorteilhafte Maßgabe,
daß das untere Ende 18 der Hohlwelle 13 den Boden 19 des
Gehäuses 5 durchgreift und mit einem Fremdantriebs-Anschlußelement
20 versehen ist. In der dargestellten Ausführungsform
handelt es sich bei diesem Element beispielsweise einfach um
ein Mehrkantsackloch, in das ein entsprechender beispielsweise
Innensechskantschlüssel eingesteckt wird, um damit bei Ausfall
des motorischen Antriebes per Hand eine Verstellung der Spannvorrichtung
vornehmen zu können.Also shown in FIG. 1 is the advantageous proviso
that the
An der rückwärtigen Schmalsseite 21 des Gehäuses 5 ist ein
Steuerelektronikgehäuse 22 angebracht, das mit im Spannkopf 1
in herkömmlicher Weise angeordneten Endstellungsfühlern 23 in
Verbindung steht.At the rear
Mit Rücksicht auf die Abfuhr der von den Motoren entwickelten
Wärme kann das Gehäuse 5 im Bereich der Motoren 6 mit Wanddurchbrechungen
24 versehen sein, durch die eine direkte Wärmeabstrahlung
ermöglicht wird. Abgesehen davon ist durch das
insbesondere im Bereich der Motorenanordnung dünnwandige Gehäuse
5 per se zumindest für eine ausreichende Wärmeableitung
gesorgt.With regard to the discharge of the engines developed by
Heat can the
Was das die Motoren 6 aufnehmende Gehäuse 5 betrifft, so kann
dieses vorteilhaft aus zwei Halbschalen 25 gebildet sein, die
im Urformverfahren beispielsweise Druckgußverfahren hergestellt
werden können. As for the
- 11
- Spannkopfclamping head
- 22
- Elektroantriebelectric drive
- 33
- Gewindespindelscrew
- 44
- Spannarmclamping arm
- 55
- Gehäusecasing
- 5'5 '
- Gehäuseteilhousing part
- 66
- Motorengine
- 77
- EinrichtungFacility
- 88th
- Drehachseaxis of rotation
- 99
- Achseaxis
- 1010
- GeradeJust
- 1111
- Seitenwändeside walls
- 1212
- Zahnradgear
- 1313
- Hohlwellehollow shaft
- 1414
- Antriebswelledrive shaft
- 1515
- Antriebsritzelpinion
- 1616
- Übertragungselementtransmission element
- 1717
- Erweiterungextension
- 1818
- EndeThe End
- 1919
- Bodenground
- 2020
- Fremdantriebs-AnschlußelementExternal drive connection element
- 2121
- Schmalsseitenarrow side
- 2222
- SteuerelektronikgehäuseControl electronics housing
- 2323
- EndstellungsgeberEndstellungsgeber
- 2424
- WanddurchbrechungenWall openings
- 2525
- Halbschalenshells
- SMSM
- Stellmechanikactuating mechanism
- DD
- Durchmesserdiameter
- AA
- Abstanddistance
Claims (9)
- An electrically actuatable workpiece clamping device, comprising an electric drive (2) arranged on a clamping head (1) for actuating a threaded spindle (3) which is in operative connection with adjusting mechanics (SM) for a clamping arm (4) provided in the clamping head (1), characterised in that the electric drive (2) arranged in a housing (5) provided with a base (19) and side walls (11) is formed by two motors (6) having a diameter (D), which are additive in power, synchronously switched and have axes of rotation (8), which motors are mechanically coupled to devices (7) for converting their rotary movement into a translatory movement of a first member of the adjusting mechanics (SM) which is optionally directly or indirectly in operative connection with the threaded spindle (3), wherein the devices (7) for converting the rotary movement into a translatory movement are formed from:that the axes of rotation (8) of the motors (6) and an axis (9) of the threaded spindle (3) extending centrally between the axes of rotation (8), seen in perpendicular projection, lie on a straight line (10),a hollow shaft (13) rotatably mounted between the motors (6), provided with a toothed wheel (12),driving pinions (15) positioned on the drive shafts (14) of the two motors (6), in engagement with the toothed wheel (12) of the hollow shaft (13),
that the side walls (11) of the housing (5) extending parallel to the line (10) are arranged at a distance (A) from one another, which is slightly greater than the diameter (D) of the motors (6) and
that the toothed wheel (12) and the driving pinion (15) in engagement therewith are arranged at the end region of the hollow shaft (13) remote from the clamping arm. - The clamping device according to claim 1,
characterised in that the spacing (A) of the side walls (1) is the same as or substantially the same as a width (B) of the clamping head (1) mounted on the housing (5). - The clamping device according to claim 1 or claim 2,
characterised in that the devices (7) for converting the rotary movement into a translatory movement are further formed from:a transmission element (16) arranged between the hollow shaft (13) and the threaded spindle (3), which is rotatable with said hollow shaft (13) and in engagement with said threaded spindle (3). - The clamping device according to claim 3,
characterised in that the transmission element (16) is constructed in the form of a recirculating ball nut. - The clamping device according to claim 4,
characterised in that the transmission element (16) is arranged in a can-shaped extension (17) at the upper end of the hollow shaft (13). - The clamping device according to any one of claims 3 to 5,
characterised in that the end (18) of the hollow shaft (13) remote from the clamping arm penetrates through the bottom (19) of the housing (5) and is provided with an external-drive connecting element (20). - The clamping device according to any one of claims 3 to 6,
characterised in that the section of the housing (5) remote from the clamping arm, which receives the end (18) of the hollow shaft (13) remote from the clamping arm, the toothed wheel (12) and the driving pinion (15) is associated therewith as a detachable housing section (5'). - The clamping device according to any one of claims 1 to 7,
characterised in that a control-electronics housing (22) is arranged on a rearward narrow side (21) of the housing (5) which is in communication with end position indicators (23) arranged in the clamping head (1). - The clamping device according to any one of claims 1 to 8,
characterised in that the housing (5) is provided with wall openings (24) in the area of the motors (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20018114U DE20018114U1 (en) | 2000-10-23 | 2000-10-23 | Electrically actuated workpiece clamping device |
| DE20018114U | 2000-10-23 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1201370A2 EP1201370A2 (en) | 2002-05-02 |
| EP1201370A3 EP1201370A3 (en) | 2004-03-10 |
| EP1201370B1 true EP1201370B1 (en) | 2005-11-16 |
Family
ID=7947968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01124018A Expired - Lifetime EP1201370B1 (en) | 2000-10-23 | 2001-10-09 | Electrically actuated workpiece clamping device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1201370B1 (en) |
| AT (1) | ATE309887T1 (en) |
| DE (2) | DE20018114U1 (en) |
| ES (1) | ES2253317T3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644638B1 (en) * | 2001-06-22 | 2003-11-11 | Delaware Capital Formation, Inc. | Electric clamp |
| ITMI20012311A1 (en) | 2001-11-05 | 2003-05-05 | Luciano Migliori | ELECTRICALLY OPERATED LOCKING DEVICE |
| JP4348685B2 (en) * | 2003-12-15 | 2009-10-21 | Ｓｍｃ株式会社 | Electric power clamp device |
| ITMI20050074U1 (en) | 2005-03-07 | 2006-09-08 | Univer Spa | CHECK DEVICE FOR PARTS TO BE WORKED WITH REMOVABLE CONTROL ELECTRONIC UNIT |
| DE102012103921A1 (en) * | 2012-05-04 | 2013-11-07 | De-Sta-Co Europe Gmbh | jig |
| EP2921260B1 (en) † | 2014-03-20 | 2016-08-31 | UNIVER S.p.A. | Pneumatically operable working machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798999A (en) * | 1985-01-15 | 1989-01-17 | Tecinsky Jaroslav | Numerically controlled electromechanical precision drive system |
| FR2588130A1 (en) * | 1985-10-02 | 1987-04-03 | Commutation Ind | Device for the rotational driving of a rotary member by an electric motor |
| DE3613644A1 (en) * | 1986-04-23 | 1987-10-29 | Josef Gerhard Tuenkers | POWER DRIVEN TOGGLE TENSIONER |
| DE3638526C1 (en) * | 1986-11-11 | 1987-07-30 | Sta Co Mettallerzeugnisse Gmbh | Workpiece clamping device that can be driven by an electric motor |
| DE3640397C1 (en) * | 1986-11-26 | 1988-01-07 | Philips Patentverwaltung | Drive device for a small household appliance |
| DE29504267U1 (en) * | 1995-03-13 | 1995-06-29 | Tuenkers Maschinenbau Gmbh | Toggle lever clamping device, in particular for use in body construction in the motor vehicle industry |
| DE29700981U1 (en) * | 1997-01-22 | 1997-03-13 | Sta Co Mettallerzeugnisse Gmbh | Inductive end position interrogation device |
| EP1167821B1 (en) * | 1997-11-03 | 2004-02-11 | Honeywell Ag | Arrangement for producing a rotary or a linear movement |
| GB2333572A (en) * | 1997-12-02 | 1999-07-28 | Valex Spa | A motor drive comprising at least two motors |
| DE19931723C1 (en) * | 1999-07-08 | 2000-09-21 | Tuenkers Maschinenbau Gmbh | Toggle lever clamping assembly for bodywork sections in the automotive industry has a permanent magnet brake to secure the sections on a power failure even when carrying loads |
| US6585246B2 (en) * | 2001-06-22 | 2003-07-01 | Delaware Capital Formation, Inc. | Electric clamp |
-
2000
- 2000-10-23 DE DE20018114U patent/DE20018114U1/en not_active Expired - Lifetime
-
2001
- 2001-10-09 AT AT01124018T patent/ATE309887T1/en active
- 2001-10-09 EP EP01124018A patent/EP1201370B1/en not_active Expired - Lifetime
- 2001-10-09 ES ES01124018T patent/ES2253317T3/en not_active Expired - Lifetime
- 2001-10-09 DE DE50108071T patent/DE50108071D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1201370A3 (en) | 2004-03-10 |
| DE20018114U1 (en) | 2002-02-28 |
| ATE309887T1 (en) | 2005-12-15 |
| EP1201370A2 (en) | 2002-05-02 |
| ES2253317T3 (en) | 2006-06-01 |
| DE50108071D1 (en) | 2005-12-22 |
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