EP1912764B1 - Pressure device for a clamping system - Google Patents

Description

The invention relates to a pressure device of a clamping system according to the preamble of claim 1, which is known from the document EP 1 535 702 A is known, wherein the tensioning system comprises a tensioner and attached to the tensioner pressure device comprises a clamping head. The pressure device transmits the clamping force of the tensioner on the chuck. For this purpose, the pressing device on a Andruckarm, wherein the Andruckarm is at one end in operative connection with the tensioner and at the opposite free end has a slot in which a mounting rod for the clamping head is longitudinally displaceable and rotatable. This mounting rod makes it possible to fix the clamping head longitudinally displaceable and rotatable at the free end of the Andruckarms. The invention further relates to a clamping system comprising the pressure device.

Such a clamping system with pressure device has the disadvantage that the manufacturing use of the clamping system for clamping of production-related standard parts is extremely limited, since the clamping area around the tensioner around for clamping standard parts is minimal. In addition, the degrees of freedom in longitudinal displacement and rotational direction around the mounting rod provide no security against misalignments because the clamping system does not maintain the pre-adjusted positions safely. Finally, for any application that goes beyond the tensioning clamping range of the known clamping systems, expensive special constructions to fix standard parts for measuring and / or testing by clamping or pressing in test equipment construction. Thus, only special designs and custom-made can meet the corresponding additional requirements, which additionally burdened the design and manufacturing effort for automotive components.

For a secure clamping of standard workpieces only the adjustability of the clamping pressure of a clamping system is necessary. Accordingly, there is a need, inter alia, for the further two degrees of freedom, such as longitudinal displaceability and rotatability, to be embodied as fixable positions in order to reduce the readjustment effort. This need can not be synonymous with that from the publication US 4,747,588 known universal clamping tool to be solved, since just take in such a clamping tool, the degrees of freedom of the adjustability of the clamping heads in the necessary readjustment of the clamping pressure in any way fixed positions.

The object of the invention is to provide a pressure device of a clamping system and a clamping system having this pressure device, which allows different clamping positions using standard parts, these predetermined clamping positions can be maintained without readjustment in a necessary readjustment of the clamping pressure. Another aspect of the invention relates to the expansion of the application area or the enlargement of the possible clamping range in each case taking into account the reproducibility with the new pressure device.

This object is achieved with the subject matter of independent claims 1 and 13. Advantageous developments of the invention will become apparent from the dependent claims.

According to the invention, a pressure device is provided which has a pressure arm and a clamping head. The Andruckarm the pressure device has at one end a slot. In this slot, a mounting rod for the clamping head is longitudinally displaceable and rotatable, wherein the mounting rod fixes the clamping head longitudinally displaceable and rotatable at the free end of the Andruckarms. In addition, the pressure device according to the invention has an anti-rotation lock securing the angle between the clamping head and the pressure arm, with an anti-rotation plate and a safety pin.

This pressure device has the advantage that due to the rotation, the once set angular position of the clamping head is fixed in relation to the Andruckarm so that the readjustment can fully concentrate on the setting of the clamping pressure. By preventing rotation with anti-rotation plate and safety pin thus the reliability of the clamping system when adjusting and readjusting the clamping pressure is improved, since the risk of changing the angle once set even with multiple readjustment of the clamping pressure is maintained. In addition, since the anti-twist device can be standardized, retrofitting is possible in all existing clamping systems in order to increase their positioning reliability in the production process.

In a preferred embodiment of the invention, the anti-rotation plate is arranged orthogonal to the slot of the pressure device and carries on its upper side the mounting rod and the securing pin, which projects spaced from the mounting rod in the slot of the Andruckarms. In addition, the anti-rotation plate can have the clamping head and define the angle between the clamping head and the pressure arm, wherein this defined angle is secured by the securing pin.

Such an embodiment of the anti-rotation has the advantage that the anti-rotation plate with clamping head forms a unit which is rotatably connected via the mounting rod with the Andruckarm, wherein the securing pin ensures the set angle to Andruckarm. Preferably, the anti-rotation plate and the chuck form a one-piece component. This one-piece has the advantage that can be dispensed with connecting elements between anti-rotation plate and clamping head, which simplifies the retrofitting of existing clamping systems and cheaper.

In a preferred embodiment of the invention, the securing pin and the clamping head are arranged opposite one another with respect to the mounting rod on the anti-rotation plate. In this case results in a rectilinear alignment of the clamping head with respect to the Andruckarm.

In a further preferred embodiment of the invention, the anti-rotation plate has a curved Lochrasterraupe opposite to the clamping head with respect to the mounting rod for defining and securing the angle between the clamping head and Andruckarm. In this case, the securing pin of the anti-rotation plate can be fixed in the perforated grid bead. Thus, it is possible that the securing pin allows a grid of angles between the clamping head and Andruckarm by the predetermined positions in the Lochrasterraupe. Such a perforated grid bead has the advantage that the individual possible positions of the securing pin can be reliably fixed.

In a further preferred embodiment of the invention, the anti-rotation plate has a curved slot slot opposite to the clamping head with respect to the mounting rod for defining and securing the angle between the clamping head and Andruckarm. In this case, the securing pin is fixable in the slot slot. This has the advantage that any intermediate angle can be secured by the securing pin. However, the adjustment of the angle or the pre-assembly of the angle is more complicated than with a predetermined perforated grid bead in the anti-rotation plate.

In a further embodiment of the invention, the pressure device for increasing the angular position between the clamping head and Andruckarm on an adapter plate, wherein the adapter plate is arranged orthogonal to the slot between the Andruckarm and the anti-rotation plate with clamping head. With such an adapter plate, the adjustability of the angle, which is already predetermined by the curved slot slot or the curved Lochrasterraupe in Verdrehsicherungsplatte further increased by the mounting rod in the order from bottom to top the anti-rotation plate with clamping head, the adapter plate and the free end of Andruckarms mechanically interconnected. For this purpose, a securing pin is provided on the upper side of the adapter plate, which engages in the slot of the Andruckarms, while a second securing pin engages in the form of a releasable connecting element on the underside of the adapter plate in the curved slot slot or the curved Lochrasterraupe the anti-rotation plate with chuck.

For this purpose, in the adapter plate has a through hole for the mounting rod and spaced from a bore for the Secured pins provided. In addition, the adapter plate has at least one further through hole, which is arranged on a circular line around the through hole for the mounting rod, wherein the circular line has a radius corresponding to the distance between the mounting rod and securing pin. Instead of a lower second securing pin, the further through hole of the adapter plate may have a releasable connecting element for defining and securing the angle between the pressing arm and the clamping head and for mechanically connecting the anti-rotation plate and the adapter plate. This connecting element may preferably be a screw which engages in a provided thread of the further through hole of the adapter plate.

Furthermore, it is provided that the clamping head is fork-shaped, since this type of clamping head opens up a wide field of application in the mounting of standard production parts in production and testing by clamping.

In order to expand the clamping range for the new pressure device, the pressure device has a boom. This boom extends the Andruckarm. For this purpose, the boom on a clamped end on a mounting rod and a securing pin, which are arranged and fixed in the slot of the Andruckarms. On the opposite free end of the boom through holes and / or threaded holes for a second mounting rod and a second securing pin for receiving the anti-rotation plate with clamping head and / or for receiving the adapter plate.

Such a cantilever may preferably be provided in five standardized lengths to provide correspondingly spaced, anti-rotation plates with chuck in several standardized To keep lengths and to further increase the possibilities of variation of the clamping system. Finally, the adapter plate may be formed differently to increase the angular range for the left and right sides of the Andruckarm. With the help of such standardized additional parts, the range of application of conventional clamping systems can be significantly expanded, wherein the detectable or clampable volume range of standard components is significantly increased compared to conventional clamping system:

1. 1. Eine Kosteneinsparung durch Vereinfachung und Vereinheitlichung der Konstruktion sowie einen Verzicht auf weitere Detaillierung bestehender Systeme;
2. 2. eine Kosteneinsparung bei der Anfertigung durch standardisierte Elemente für die neue Andruckvorrichtung, so dass anstelle von Sonderanfertigungen eine Massenfertigung möglich wird;
3. 3. eine Kosteneinsparung bei der Montage durch vordefinierte standardisierte Prozesse im Baukastensystem;
4. 4. eine Kosteneinsparung im Wartungs- und Änderungsdienst, da nur standardisierte Teile zur Anwendung kommen und somit eine kostengünstige Austauschbarkeit von Elementen des Spannsystems ermöglicht wird;
5. 5. eine Abdeckung eines großen Spannbereichs um den konventionellen Spanner herum mit neuen Standardteilen des neuen Spannsystems.

In summary, the invention provides the following advantages over systems known in the art.

1. 1. A cost saving through simplification and standardization of the construction as well as a renunciation of further detailing of existing systems;
2. 2. A cost saving in the production by standardized elements for the new pressure device, so that instead of custom-made mass production is possible;
3. 3. a cost saving during assembly through predefined standardized processes in the modular system;
4. 4. a cost saving in the maintenance and modification service, since only standardized parts are used and thus an inexpensive interchangeability of elements of the clamping system is made possible;
5. 5. a cover of a large clamping area around the conventional tensioner with new standard parts of the new clamping system.

Figur 1

zeigt eine schematische perspektivische Ansicht eines Spannsystems mit einer Andruckvorrichtung einer ersten Ausführungsform der Erfindung;

Figur 2

zeigt eine schematische Seitenansicht einer Verdrehsicherungsplatte mit Sicherungszapfen;

Figur 3

zeigt eine schematische Draufsicht auf eine Verdrehsicherungsplatte mit Spannkopf;

Figur 4

zeigt eine schematische Draufsicht auf eine modifizierte Verdrehsicherungsplatte mit Spannkopf;

Figur 5

zeigt eine schematische perspektivische Ansicht des Spannsystems gemäß Figur 1 mit voreingestelltem und gesichertem Winkel zwischen Andruckarm und Spannkopf der Andruckvorrichtung gemäß der ersten Ausführungsform der Erfindung;

Figur 6

zeigt eine schematische perspektivische Ansicht eines Spannsystems mit einer Andruckvorrichtung einer zweiten Ausführungsform der Erfindung;

Figur 7

zeigt eine schematische Ansicht der Unterseite einer Adapterplatte;

Figur 8

zeigt eine schematische Seitenansicht der Adapterplatte gemäß Figur 7;

Figur 9

zeigt eine schematische perspektivische Ansicht eines Spannsystems mit einer Andruckvorrichtung einer dritten Ausführungsform der Erfindung;

Figur 10

zeigt eine schematische perspektivische Ansicht des Spannsystems gemäß Figur 9 mit voreingestelltem und gesichertem Winkel zwischen einem Ausleger und einem Spannkopf der Andruckvorrichtung gemäß der dritten Ausführungsform der Erfindung;

Figur 11

zeigt schematisch eine Seitenansicht (11a) und eine Vorderansicht (11b) eines Auslegers;

Figur 12

zeigt eine schematische perspektivische Ansicht eines Spannsystems mit einer Andruckvorrichtung einer vierten Ausführungsform der Erfindung;

Figur 13

zeigt eine schematische Draufsicht auf ein Spannsystem und dem möglichen einstellbaren Spannbereich eines Spannkopfes der Andruckvorrichtung.

The invention will now be explained in more detail with reference to the accompanying figures.

FIG. 1

shows a schematic perspective view of a clamping system with a pressure device of a first embodiment of the invention;

FIG. 2

shows a schematic side view of an anti-rotation plate with securing pin;

FIG. 3

shows a schematic plan view of an anti-rotation plate with clamping head;

FIG. 4

shows a schematic plan view of a modified anti-rotation plate with clamping head;

FIG. 5

shows a schematic perspective view of the clamping system according to FIG. 1 with preset and secured angle between Andruckarm and chuck of the pressure device according to the first embodiment of the invention;

FIG. 6

shows a schematic perspective view of a clamping system with a pressure device of a second embodiment of the invention;

FIG. 7

shows a schematic view of Underside of an adapter plate;

FIG. 8

shows a schematic side view of the adapter plate according to FIG. 7 ;

FIG. 9

shows a schematic perspective view of a clamping system with a pressure device of a third embodiment of the invention;

FIG. 10

shows a schematic perspective view of the clamping system according to FIG. 9 with pre-set and secured angle between a boom and a chuck of the pressure device according to the third embodiment of the invention;

FIG. 11

schematically shows a side view (11 a) and a front view (11 b) of a boom;

FIG. 12

shows a schematic perspective view of a clamping system with a pressure device of a fourth embodiment of the invention;

FIG. 13

shows a schematic plan view of a clamping system and the possible adjustable clamping range of a clamping head of the pressure device.

FIG. 1 shows a schematic perspective view of a clamping system 1 with a pressure device 5 of a first embodiment of the invention. The clamping system 1 has a tensioner 9 and a pressure device 5, wherein the pressure device 5 via a Andruckarm 11 of the pressure device 5 is in operative connection with the tensioner 9. The tensioner 9 of the clamping system 1 has in this first embodiment of the invention, a clamping lever 33 which engages with a clamped end 12 of the Andruckarms 11 and exerts a clamping pressure in the direction of arrow A on the free end 13 of the Andruckarms 11 when the clamping lever 33rd is transferred in the direction of arrow B from a rest position not shown in the clamping position shown. However, the force exerted by the clamping lever and the tensioner mechanical clamping force on the pressure device can also be applied hydraulically, pneumatically and / or electromechanically by appropriate clamping devices of the clamping system. The pressure arm 11 has a slot 14 in the region of the free end 13 of the Andruckarms 11, wherein in the slot 14, a mounting rod 15 is arranged longitudinally displaceable. The mounting rod 15 is fixedly connected to an anti-rotation plate 16, which is orthogonal to the axis 34 of the mounting rod 15.

This anti-rotation plate 16 has in this embodiment of the invention, a fork-shaped chuck 10 on one end and a curved Lochrasterraupe 18 on the relative to the mounting rod 15 opposite end of the anti-rotation plate 16. In the perforated grid bead 18, a securing pin 17 is fixed, which projects at a distance from the fixing rod 15 in the slot 14 of the Andruckarms 11.

The anti-rotation plate 16 ensures, in cooperation with the securing pin 17, that the position of the fork-shaped clamping head 10 is maintained during a readjustment of the contact pressure. The rotation of the fork-shaped clamping head 10 about the axis 34 of the mounting rod 15 is practically excluded due to this rotation by the anti-rotation plate 16 and the securing pin 17, so that here shown rectilinear alignment of the fork-shaped clamping head 10 is completely retained in the Andrucknachjustage.

FIG. 2 shows a schematic side view of an anti-rotation plate 16 with securing pin 17. This securing pin 17 is at a distance a from a through or threaded hole 21 for the mounting rod, the in FIG. 1 is shown arranged. The securing pin 17 is arranged perpendicular to the upper side 37 of the anti-rotation plate 16. The securing pin 17 is fixed by a screw 35, which engages from the underside 38 of the anti-rotation plate 16 with an internal thread 36 of the securing pin 17. On the underside 38 of the anti-rotation plate 16 projects out of the clamping head 10, which is opposite to the securing pin 17 with respect to the bore 21 for the mounting rod.

FIG. 3 shows a schematic plan view of an anti-rotation plate 16 with chuck 10. The anti-rotation plate 16 has ein.zentrale through hole 21 for the mounting rod. In the in FIG. 3 illustrated modification, the anti-rotation plate 16 has a perforated scanning bead 18 on an adjustable clamping portion 39, wherein the adjustable clamping portion 39 has a radius r, which corresponds to the in FIG. 2 shown distance a corresponds. The in FIG. 2 shown securing pin 17 can be fixed in one of the positions of the hole pattern and thus define and secure an angle α ₁ for the alignment of the clamping head 10 with respect to the above-mentioned Andruckarm 11.

FIG. 4 shows a schematic plan view of a modified anti-rotation plate 16 with chuck 10. The modification is that instead of the in FIG. 3 shown curved Lochrasterraupe 18 a correspondingly curved slot slot 19 is arranged. With this slotted slot 19, the angle α ₁ between the chuck 10 and the above-mentioned Andruckarm 11 of the pressure device 5 can be continuously secured by a corresponding positioning of the securing pin in the slot slot 19.

FIG. 5 shows a schematic perspective view of the clamping system 1 according to FIG. 1 with preset and secured angle α ₁ between Andruckarm 11 and clamping head 10. The size of the angle α ₁ depends on the size of the anti-rotation plate 16 and the introduced there bent slot slot or the curved Lochrasterraupe. The other components with the same functions as in the preceding figures are identified by the same reference numerals and not discussed separately.

FIG. 6 shows a schematic perspective view of a clamping system 2 with a pressure device 6 according to a second embodiment of the invention. Components having the same functions as in the previous figures are identified by the same reference numerals and will not be discussed separately. The difference from the embodiment according to FIG. 1 and FIG. 5 is that between the Andruckarm 11 and the angle-adjustable anti-rotation plate 16, an adapter plate 20 is arranged. With this adapter plate 20, an additional angle α ₂ with respect to the longitudinal extent of the Andruckarms 11 is added to the angle α ₁ , so that angular positions α are achieved with 0 ≤ α ≤ 100 °.

For this purpose, the adapter plate 20 has a bore for the mounting rod 15, which is arranged centered over the bore which is provided in the anti-rotation plate 16. In addition, the adapter plate 20 now carries the securing pin 17 which fixed the adapter plate 20. In addition, the adapter plate 20 has a releasable connecting element 25, which is in engagement with the perforated grid bead 18 or a slotted slot of the anti-rotation plate 16. The bore for such a releasable connecting element 25 rests on a circular portion with a radius r, which corresponds to the distance a between the mounting rod 15 and the securing pin 17. This geometric arrangement will be with the following FIGS. 7 and 8 explained.

FIG. 7 shows a schematic view of the bottom 41 of an adapter plate 20. The adapter plate 20 has at least three holes 21, 22 and 24: a central bore 21 for the mounting rod and at a distance a to a bore 22 for the securing pin. On a circular line 23, which has a radius r, at an angle α _2, a further bore 24 in the adapter plate 20 spaced from the bore 22 is arranged. This further bore 24 takes the in FIG. 6 shown releasable connection element 25. The radius r of the circular line 23 corresponds to the distance a between the bore 21 and the bore 22. The further bore 24 is offset relative to the bore 22 by the angle α ₂ with respect to the bore 21. Thus, the chuck 10, which in FIG. 6 is shown to be offset by a total angle α = α ₁ + α ₂ with respect to the longitudinal axis of the Andruckarms 11, wherein the total angle α can be preset and secured both right and left of the Andruckarm.

FIG. 8 shows a schematic side view of the adapter plate 20 according to FIG. 7 , In the side view, the holes 21 and 22 and additionally the further bore 24 are shown with dashed lines one above the other. For this purpose, the bore 22 has a countersink 40 for a countersunk screw for fastening the securing pin 17 which is in FIG. 6 is shown on. These Countersink 40 has the advantage that with a corresponding countersunk screw the bottom 41 of the adapter plate 20 remains flat after fixing the securing pin.

FIG. 9 shows a schematic perspective view of a clamping system 3 with a pressure device 7 of a third embodiment of the invention. The pressure device 7 according to FIG. 9 differs from the previous embodiments in that a boom 26 is attached to the free end 13 of the Andruckarmes 11. For this purpose, the arm 26 on its end 13 of the Andruckarms 11 fixed end 27 next to the mounting rod 15 at a distance a the securing pin 17, which projects into the slot 14 of the Andruckarms 11. The free end 28 of the arm 26 carries on its underside the anti-rotation plate 16 with the clamping head 10. For this purpose, the boom 26 has a through hole 29 in which a second mounting rod 31 is disposed, and a further through hole 30 at a distance a to the first through hole 29th in which a second securing pin 32 is arranged, which holds the anti-rotation plate 16 in position. The securing pin 32 engages with a curved perforated grid bead 18 of the anti-rotation plate 16, whereby the position of the clamping head 10 is secured. The second securing pin 32 can also in a curved slot slot 19, as in FIG. 4 is shown to be fixed.

FIG. 10 shows a schematic perspective view of the clamping system 3 with the pressure device 7 according to FIG. 9 with a preset and secured angle α ₁ between a cantilever 26 and a chuck 10. Components having the same functions as in the preceding figures are identified by the same reference numerals and will not be discussed separately. To adjust the angle α ₁ , only the securing pin 32 in the Through hole 30 in the slotted slot or in the hole grid bead 18 of the anti-rotation plate 16 offset fixed.

FIG. 11 schematically shows a side view in FIG. 11a and a front view in FIG. 11b a cantilever 26. In this case, the length 1 of the boom 26 may vary, or it may be held in a tool set different standardized lengths of the cantilever 1 1, to ensure the most variable clamping system. The boom 26 has at the end 27, which is fixed to the Andruckarm the pressure device, two holes 21 and 22, wherein the bore 21 is provided for attaching the mounting rod and the bore 22 for attaching the securing pin disposed in the boom 26 is. The bores on the free end 28, which is to carry the anti-rotation plate with the chuck, the holes 21 and 22 are adapted with their diameters, wherein the bore 29 are provided for a second mounting rod and the bore 30 for a second securing pin. In this case, the second securing pin may have a smaller diameter than the first securing pin, so that the through holes 22 and 30 differ in diameter.

FIG. 12 shows a schematic perspective view of a clamping system 4 with a pressure device 8 of a fourth embodiment of the invention. This fourth embodiment of the invention differs from the third embodiment of the invention in that in addition to the boom 26 now also an adapter plate 20 is provided on the free end of the boom 26. With this adapter plate 20, as stated above, the angle α between the longitudinal extent of the Andruckarms 11 with boom 26 and the clamping head 10 can be further increased.

FIG. 13 shows a schematic plan view of a clamping system 1 to 4 with a pressure device 5 to 8 and the possible adjustable clamping range 39 of a clamping head of this pressure device 5 to 8. The clamping region 39 may for example comprise a length L of about 230 mm and a width b of about 100 mm. The length L of the clamping region 39 depends on the magnitudes of the boom and the anti-rotation plate with clamping head, and the width b of the clamping portion 39 depends on the pivot angle α, with the clamping head is pivoted about the mounting rod at the free end of a pressure device 4. Furthermore, the width b of the clamping portion 39 is influenced by the magnitude of the anti-rotation plate with clamping head. For this purpose, the pivot angle α can be mounted by the adapter plate, as explained above, to different embodiments of the Andruckarms 11 with and without boom.

LIST OF REFERENCE NUMBERS

1

Clamping system (1st embodiment)

2

Clamping system (2nd embodiment)

3

Clamping system (3rd embodiment)

4

Clamping system (4th embodiment)

5

Pressure device (1st embodiment)

6

Pressure device (2nd embodiment)

7

Pressure device (3rd embodiment)

8th

Pressure device (4th embodiment)

9

Stretcher

10

clamping head

11

pressure arm

12

clamped end of Andruckarms

13

free end of the Andruckarms

14

Long hole

15

mounting rod

16

Verdrehsicherungsplatte

17

Security bolt

18

Breadboard caterpillar

19

Slot slot

20

adapter plate

21

Bore for mounting rod

22

Bore for securing pin

23

circle line

24

further drilling

25

detachable connection element

26

boom

27

fixed end of the jib

28

free end of the jib

29

Bore of the boom

30

Bore of the boom

31

second attachment rod

32

second securing pin

33

clamping lever

34

Axle of the mounting rod

35

screw

36

inner thread

37

Top of the anti-rotation plate

38

Bottom of the anti-rotation plate

39

adjustable clamping range

40

countersink

41

Bottom of the adapter plate

a

Distance between mounting rod and safety pin

A

arrow

B

arrow

b

Width of the clamping area

1

Length of the boom

L

Length of the clamping range

r

Radius of the circle

α

angle

Claims (16)

1. A pressing apparatus, comprising a pressing arm (11) and a grip head (10), with the pressing arm (11) comprising an oblong hole (14) in which a fixing rod (15) for the grip head (10) is arranged to be longitudinally displaceable and rotatable, and with the fixing rod (15) fixing the grip head (10) in a longitudinally displaceable and rotatable manner to the pressing arm (11), characterized in that the pressing apparatus (5) comprises an anti-twist device with an anti-twist plate (16) and a securing pin (17) which secures the angle (α) between the grip head (10) and the pressing arm (11).
2. A pressing apparatus according to claim 1, characterized in that the anti-twist plate (16) is arranged orthogonally to the oblong hole (14) of the pressing apparatus (5) and carries the fixing rod (15) and the securing pin (17) protrudes into the oblong hole (14) spaced from the fixing rod (15), with the anti-twist plate (16) comprising the grip head (10) and defining the angle (α) between grip head (10) and pressing arm (11) and securing said defined angle (α) by the securing pin (17).
3. A pressing apparatus according to claim 1 or claim 2, characterized in that the anti-twist plate (16) and the grip head (10) are arranged to be integral.
4. A pressing apparatus according to claim 2 or claim 3, characterized in that the securing pin (17) and the grip head (10) are arranged on the anti-twist plate (16) to be opposite of each other with respect to the fixing rod (15).
5. A pressing apparatus according to one of the preceding claims, characterized in that the anti-twist plate (16) comprises a curved bead of holes (18) opposite of the grip (10) with respect to the fixing rod (15) for defining and securing the angle (α) between grip head (10) and pressing arm (11), with the securing pin (17) being fixable in the curved bead of holes (18).
6. A pressing apparatus according to one of the claims 1 to 4, characterized in that the anti-twist plate (16) comprises a bent oblong hole slit (19) opposite of the grip head (10) with respect to the fixing rod (15) for defining and securing the angle (α) between grip head (10) and pressing arm (11), with the securing pin (17) being fixable in the oblong hole slit (19).
7. A pressing apparatus according to one of the preceding claims, characterized in that the pressing apparatus (6) comprises an adapter plate (20) for enlarging the angular position between the grip head (10) and the pressing arm (11), with the adapter plate (20) being arranged orthogonally to the oblong hole (14) and between the pressing arm (6) and the anti-twist plate (16) with grip head (10).
8. A pressing apparatus according to claim 7, characterized in that the adapter plate (20) comprises a through bore (21) for the fixing rod (15) and, spaced from the same, a bore (22) for the securing pin (17).
9. A pressing apparatus according to claim 7 or claim 8, characterized in that the adapter plate (20) comprises at least one further through bore (24) which is arranged on a circular line (23) about the through bore (21) for the fixing rod (15), with the circular line (23) having a radius (r) which corresponds to a distance (a) between the fixing rod (15) and the securing pin (17).
10. A pressing apparatus according to claim 9, characterized in that the further through bore (24) of the adapter plate (20) comprises a detachable connection element (25) for defining and securing the angle (α) between the pressing arm (11) and the grip head (10) and for mechanical connection of anti-twist plate (16) and adapter plate (20).
11. A pressing apparatus according to one of the preceding claims, characterized in that the grip head (10) is forked.
12. A pressing apparatus according to one of the preceding claims, characterized in that the pressing apparatus (7) comprises an extension arm (26) which extends the pressing arm (11) and comprises on a clamped end (27) a fixing rod (15) and a securing pin (17) which are arranged in the oblong hole (14) of the pressing arm (11) and comprises threaded bores (29 and 30) on an opposite free end (28) for a second fixing rod (31) and a second securing pin (32) for receiving the anti-twist plate (16) with the grip head (10) or for receiving the adapter plate (20).
13. A clamping system which comprises a pressing apparatus according to one of the claims 1 to 12.
14. A clamping system according to claim 13, characterized in that the clamping system (1 to 4) comprises a clamping device (9) which can be actuated hydraulically, pneumatically, mechanically and/or electromechanically, and exerts a clamping force on the grip head (10) of the pressing apparatus (5 to 8).
15. A clamping system according to claim 14, characterized in that the clamping device (9) comprise a clamping lever (33) for applying a clamping force.
16. A clamping system according to claim 14 or claim 15, characterized in that the pressing arm of the pressing apparatus is in operative connection with the clamping device (9) with one end (12) and comprises the oblong hole (14) at the opposite free end (13).

Images