EP3612378A1

EP3612378A1 - Radial press

Info

Publication number: EP3612378A1
Application number: EP18717341.4A
Authority: EP
Inventors: Carsten Baumgartner; Reiner Viehl
Original assignee: Uniflex Hydraulik GmbH
Current assignee: Uniflex Hydraulik GmbH
Priority date: 2017-04-20
Filing date: 2018-04-11
Publication date: 2020-02-26
Anticipated expiration: 2038-04-11
Also published as: DE102017108399A1; DE102017108399B4; US20200047440A1; EP3612378B1; WO2018192814A1; US11498299B2

Abstract

A radial press (2) comprises a plurality of press bodies, which are arranged around a press axis and can be moved radially in relation to the press axis, and a drive unit for shifting the press bodies in the direction of the press axis, or away from the same. The press bodies are constructed in a number of parts and each have a main jaw (1) and a pressing jaw (14), which is fixed in an interchangeable manner on the main jaw. The main jaws (1) each comprise a radially inwardly arranged pressing-jaw-supporting surface (6) and, adjacent to the latter in the circumferential direction, two side surfaces (7, 8). The pressing jaws (14) each butt, by way of an abutment surface (13), against the pressing-jaw-supporting surface (6) of the associated main jaw (1) and have a fixing protrusion (12), which projects from the abutment surface (13), enters into a mount (11) provided on the main jaw (1) and interacts with a locking device arranged there. On their pressing-jaw-supporting surface (6), the main jaws (1) each have a channel-like recess (17), which extends from the mount (11) as far as one of the side surfaces (7, 8) and opens out on the same.

Description

radial press

The present invention relates, as stated in the preamble of claim 1, a radial press comprising a plurality of about a press axis arranged around, radially to the press axis movable compacts and a drive unit for the process of the compacts in the direction of the press axis and from this , wherein the compacts are constructed in several parts and each have a base jaw and an interchangeable fixed to this pressing jaw, the base jaws each have a radially inwardly disposed pressing jaw support surface and, for this purpose adjacent in the circumferential direction, two side surfaces

include and the pressing jaws each with a

Counter surface on the pressing jaw support surface of the

attached base jaw and one of the

Having counter-surface protruding fixing projection, which enters a provided on the base jaw receptacle and cooperates with a locking device arranged there. Furthermore, the present invention relates

Invention, a radial press system, which a

Radial press, a change-pressing jaws setwise

vorratendes press jaw magazine and the common press jaw change serving quick-change device comprises.

To be differently dimensioned with radial presses

To be able to work on workpieces, let them be

typically by equipping with different

modified press jaws so that with them presses with different diameters

can be performed. The (interchangeable)

Pressing jaws are fixed radially inward on the base jaws, which in turn are radially guided by the drive unit are movable to the press axis. The - for the

interchangeable attachment of the pressing jaws to the

Base jaws - provided on the pressing jaws

Fixiervorsprünge, by the mating surfaces of the

Press jaws protrude, enter into provided on the base jaws recording and interact with locking devices of the base jaws are realized, for example, as radially outwardly projecting from the press jaws pins, pins or bolts. This applies regardless of the concrete specific construction of the radial press; in particular, radial presses are in accordance with the so-called

Hollow piston construction (see, for example, DE 10149924 AI, EP 2420332 AI, EP 1610915 Bl) regularly after the

described principle converted, as well as radial presses according to the so-called Jochbauweise (see, for example DE 4135465 AI, DE 19912976 AI, DE 19817882 B4, EP 1252943 AI, DE 202016008097 Ul, DE 202016100660 Ul) and radial presses in other, for example, the so-called pressure plate design ( See, for example, DE 2844475 AI, DE 3611253 AI, DE 10047025 C2, DE 3331721 AI).

Spreading the pressing jaws on the base jaws is widespread by radial movement of the respective

Press jaw relative to the relevant base jaw. In this case, the pressing jaws (from radially inside) individually

manually put on the base jaws. By contrast, with the simultaneous change of all pressing jaws of the respective set (see below), the (simultaneous) radial movement of all base jaws and pressing jaws relative to one another is achieved by closing the

Radial press corresponding method of the base jaws by means of the drive unit radially inward to the

Locking the locking units causes. In reverse

Direction takes place (individually or in sets) the Dismantling of the pressing jaws, in which case the

Locking devices are unlocked in a suitable manner.

According to an alternative concept, the pressing jaws are pushed axially onto the base jaws for their assembly. For this purpose, the basic jaw-side receptacles for the fixing projections of the pressing jaws extend to the

Pressing jaw support surfaces of the base jaws in each case groove-like in the axial direction up to that base jaw end face from which the assembly of the pressing jaws takes place.

As already mentioned above, the pressing jaw set-typically comprising eight pressing jaws-can be handled as a whole for pressing jaw changing, so that the complete pressing jaw set stored in a corresponding magazine is inserted into the radial press or removed from it and stored in the magazine. This not only reduces the associated with the conversion of a radial press

Time required, but also the risk of (incorrect) equipment of the radial press with pressing jaws

different type. For the joint handling of all pressing jaws of a pressing jaw set serves a quick-change tool with a handle and a pressing jaw holder, which holds the pressing jaws - evenly concentric around the tool axis around - holds.

For the corresponding common change of all pressing jaws under radial movement of pressing jaws and base jaws (see above) relative to each other, d. H. in the common process of the base jaws in the sense of closing the radial press are different

Quick change devices known. In the simplest case is the quick-change device with it

recorded press jaw set by the operator of the radial press freely in this positionable (see.

for example US 6257042 Bl and DE 20109212 Ul).

However, it is more comfortable for the operator if a kind of positioning aid is provided (cf., for example, DE 202015002566 U1). It is particularly comfortable when about each other corresponding centering on the quick-change device and counterparts on the

Radial press for centering the

Quick change device in the radial press such care is taken that the tool axis with the

Pressing axis aligned and the pressing jaws are also positioned so that the mutually corresponding connection means of the pressing jaws and base jaws (that is, the Fixiervorsprünge and recordings) are aligned. The same is known for example from EP 1610915 Bl and EP 2420332 AI. The ones revealed here

Centering also affect in terms of a reduced risk of damage to the above-mentioned pins, pins or bolts or other Fixiervorsprünge in the press jaw assembly.

The present invention has set itself the task, one over the prior art in particular

in terms of flexibility, especially with regard to the possible pairings of base and press jaws further improved radial press of the generic type

provide.

This object is achieved according to the present invention, as stated in claim 1, by the

Base jaws in each case on their pressing jaw support surface, a from the recording (for the fixing projection of the respective pressing jaw) to one of the side surfaces of the Base jaw extending, have at this opening channel-like recess. Such channel-like recesses, each extending from a side surface of the respective base jaw to their inclusion, allow that already in - under a rotational movement of the

Pressing jaws around the press axis - Assembly of the press jaws whose fixing projections at least

end or partially into the - defined by the respective pressing jaw support surface - contour of the respective associated base jaw protrude. During assembly of the pressing jaws reach their fixing projections - by said common rotational movement of all pressing jaws of the set around the tool axis around - of the

respective side surface of the respective base jaw forth along the recess of the associated base jaws to the respective recording. The angle of rotation in question is preferably about half the pitch, d. H. at a radial press having eight compacts approximately between 20 ° and 25 °, for example about 22.5 °.

A particularly pronounced advantage of the invention is that for mounting the pressing jaws of the respective distance between the pressing jaw support surfaces and the mating surfaces of the associated pressing jaws may be less than that degree to which the fixing protrusions on the respective mating surface radially from the pressing jaws

protrude. In application of the invention can thus thus in a given radial press also (as a set

together) mount such press jaws that at best, due to an insufficient distance between the base jaws at maximum open radial press in conventional generic radial presses individually

can be mounted. In application of the invention, even certain configurations, i. H. certain

Pairings of base jaws and press jaws reach the in conventional radial presses not even under manual assembly of the individual pressing jaws are possible. From another perspective, it can be deduced as an advantage of the invention that, if necessary, longer fixing projections can be used than in the prior art, which is the implementation

additional functionalities in the Fixiervorsprünge allowed (see below). Another again more advantageous

Effect of the invention is that in comparison with the prior art, a more precise tuning of the

Fixiervorsprünge and the associated recordings

each other - in terms of their dimensions - is possible, so that the observed in the prior art, by appropriate game between

Fixiervorsprüngen and recordings conditional axial displacement of the dies to each other can be significantly reduced. Compared to such radial presses, in which the

Pressing jaws are mounted by axial sliding onto the base jaws and the base jaws are in

Longitudinally or axially extending receiving grooves for the Fixiervorsprünge of the pressing jaws, there is a very decisive advantage of the invention in the much lower weakening of the base jaws, namely by in the inventive design, the particularly loaded front end portions of the base jaws (namely in the particularly stressed center plane) can be made solid and undamaged.

The for the radial presses according to the invention

characteristic recesses extend, in the circumferential direction according to a first preferred embodiment of the invention. This results in recesses of the shortest possible length, resulting in only a minimal weakening of the base jaws, which also affects the less heavily loaded middle area the base jaw is limited. The assembly of the pressing jaws takes place in this case by means of a strictly two-phase movement (first axial insertion, then turning in

Circumferential direction).

In typical structural implementations of the present invention, the axial insertion of the

Press jaw set in the space limited by the base jaws (with open radial press)

Fixiervorsprünge the pressing jaws to the free spaces between each two adjacent base jaws. In the case of a more or less play-free guidance of the Fixiervorsprünge in the respective free spaces by each of the two these limiting base jaws already takes place an effective centering of the

Quick change tool such that its

Tool axis aligned with the press axis.

The axial position of the quick-change tool with the recorded pressing jaws, in the second phase of the pressing jaw assembly, d. H. the rotational movement of the

Pressing jaws around the tool axis while moving the fixing projections in the recesses, possible and

can be defined in particular by a stop (or more attacks) are defined. In a particularly preferred embodiment, such a depth stop (eg in the form of a disk) on the

Quick change device provided and cooperates with the front sides of the base jaws. The disc in question can in this case in addition as

Engagement contact act, which prevents a reaching into the press jaw installation space when pressing jaw change and thereby significantly contributes to accident prevention. In certain application situations, it may be advantageous if the base jaws each have a recess extending from the mouth of the recess to one of the end sides of the base jaw on that side face on which the respective recess opens. Such recesses can be provided at the edge, in each case in the region of the transition from the pressing jaw support surface to the side surface of the base jaw in question

serve as a kind of "feeder" for the fixing projections to the mouths of the recesses; they allow insertion of the pressing jaw set into the contour defined by the pressing jaw support surfaces

projecting Fixiervorsprüngen even if the (remaining) free spaces between each two adjacent base jaws are too narrow to the respective

To record fixation projections. With a corresponding dimensioning of said recesses, even a mounting or dismounting of the pressing jaws is complete or at least more or less closed

Radial press possible, what special applications with

Special press jaws can be advantageous.

In a particularly preferred manner is (more or less mirror image) also at the opposite, second edge region of the pressing jaw support surface, d. H. in the transition region from the pressing jaw support surface to the second side surface of the base jaw, such a recess extending in the axial direction up to the end face of the base jaw (without connection to the base jaw)

recess according to the invention) is provided. The for the axial insertion of the die set in the

Press-jaw installation space for the fixing projections

required expansion of existing between the base jaw space is distributed in this case (depending on the structural design in individual cases more or less uniform) on the two mutually opposed recesses. Thus, an optimal symmetry of the support of the pressing jaws on the base jaws can be achieved, so that even with extreme

Loading conditions one to a tilting of the

Pressing jaw leading asymmetric deformation of

Base jaws is excluded. This comes the

Precision manufacturing and counteracts

gentle on materials and thus in terms of increasing the service life of the radial press.

Incidentally, the recesses explained above can function as described above

Depth stop take over, so that a separate

Stop becomes unnecessary. Because with suitable

Design limit the inner, the mouths of the recesses adjacent ends of the recesses (in cooperation with the associated centering) effectively the axial insertion movement of the on the

Quick change tool recorded pressing jaw set exactly in a position in which the Fixiervorsprünge the mouths of the recesses are opposite and thus the second phase of the insertion movement forming turning of the die set is possible.

In an alternative embodiment, the above

explained to one of the faces of the

relevant base jaw extending recess instead of that side surface of the base jaw, at the whose

Recess opens, even on the opposite

Side surface be provided. In this case, in each case the recess of the adjacent base jaw opens into the recess or the recess of a base jaw forms the "feeder" for the fixing projection on the adjacent base jaw to be mounted pressing jaw to the recess of the respective neighboring base jaw.

The radial depth of the invention provided

Recesses can be directed according to the respective requirements. In the interests of the most stable possible execution of the base jaws, the recesses are preferably not deeper than it is necessary for achieving the desired benefits in each case. In this sense, the recesses are generally less deep than the receptacles for the Fixiervorsprünge. This typically concludes the assembly of the pressing jaws with a (known from known machines, here, however, less long) radial movement of the base jaws and pressing jaws relative to each other, either by a radially inwardly directed movement of the base jaws in the sense of closing the radial press or a radially outwardly directed movement of the pressing jaws

(for example, using a

Quick-change device according to the conception according to DE 20109212 Ul). In individual cases, however, the depth of the recesses may also correspond to the depth of the receptacles, so that an assembly of the pressing jaws is possible even without radial movement of the base jaws and pressing jaws relative to each other (for example, in the case of a fully closed radial press, see above). The

Locking of the pressing jaws on the base jaws takes place in this case towards the end of the rotary movement.

The above-explained orientation of the recesses in the circumferential direction represents a typical

Applications preferably realized embodiment is; However, it is not necessarily mandatory. Under

Specific conditions may be favorable in individual cases, other courses of the recesses. Thus, for example, instead of an orientation of the recess in the circumferential direction, an extension of the recesses in each case along a helix may prove to be favorable. Depending on the dimensions (in particular the axial length of the base jaws), it is also possible for the recess to extend beyond its mouth to the side surface of the base jaw

going out in the adjacent base jaw (possibly up to the front side) continues. Even in such non-circumferentially oriented recesses can in

Incidentally, the edge-side described above

Recesses are provided to achieve the stated advantages associated with them.

According to yet another preferred embodiment of the invention, at least two geometric

provided differently configured fixing projections and / or at least two geometrically differently designed recordings. By such a geometric individualization of at least one fixing projection or at least one receptacle can be achieved that can be mounted in the base jaws of the radial press only in a single, predefined position of the die set. Applicable, this development, for example, when using a die set, in which one of the press jaws - for marking the workpiece - embossing types; because the corresponding marking press jaw should always be mounted on the lowest base jaw. A preferred, exemplary

Embodiment is that the fixing projection of one of the pressing jaws has such a thickening that this fixing projection is not in the usual

Free space between each two base jaws of the

(open) radial press takes place, but only in the one, by a recess (see above) extended space.

Yet another preferred development of

present invention is characterized in that the (each housed in the base jaws)

Locking device on the with her

cooperating fixing projection exerts a radially outward biasing force. The

Locking device pulls in this way the respective pressing jaw radially outward for safe, backlash-free contact with the pressing jaw support surface of the associated base jaw. This is how the

Reproducibility of Radialpressung and increase the manufacturing accuracy of the radial press.

With a view to easy conversion of the radial press, d. H. a particularly simple press jaw change is advantageous if each end of the base jaw a bore is provided through which the locking device can be unlocked. Such

Holes can be in a radial press system, which stored a radial press, a press jaw magazine set by sentence, for their attachment to the

Base jaws of the radial press suitable change press jaws and the common press jaw change enabling quick-change device with a

Handle and a press jaw holder, use in such a way that the quick-change device further comprises an unlocking arrangement with frontally insertable into the holes of the base jaws unlocking, wherein the pressing jaw holder and the

Entriegelungsanordnung the quick-change device are rotatable about a tool axis relative to each other. So can be by means of the quick-change device - in Implementation of the present invention - twist the jaws to their assembly or disassembly relative to the base jaws, at the same time at the

Tendon replacement device provided

Unlocking unlock the locking devices. It is particularly advantageous if the pressing jaw holder of the quick-change device is rotatably connected to the handle.

But the unlocking of the locking devices serving unlocking can also be performed in various other suitable manner. In addition to mechanically acting unlocking elements such as pins, bolts or the like come - at

corresponding design of the locking devices - for example, non-contact

Entriegelungselemente into consideration, such as. B. those on a magnetic basis. Such unlocking elements are also expediently part of an unlocking arrangement which - relative to the tool axis - relative to

Press jaw holder is rotatable.

Only to avoid misconceptions is to mention that the base jaws in turn are not necessarily made in one piece. Rather, they can also be constructed in several parts by each comprising one - placed on a base jaw base - intermediate jaw on which the pressing jaw support surface is executed. It should also be mentioned that although the press-jaw support surfaces and the mating surfaces are typically designed according to a circular cylinder section, this is not mandatory; because of deviating geometric shapes of the interfaces between

Base and pressing jaws can prove to be favorable in individual cases. Furthermore, it should be noted that in the context of the present invention, the indication that the compacts are movable radially to the press axis

are slidably guided, not limiting in the sense of a purely radial movement in a plane perpendicular to the press axis is to be understood; Rather, the compacts, as in particular at certain

Radial press designs according to the printing plate concept is common, when pressing a certain

Experience axial displacement, so that the movement of the compacts may also have an axial component in their approach to the pressing axis and in their removal from this in addition to the radial component. Incidentally, not only mechanical, in particular, come as locking means for the pressing jaws

positive locking and / or latching locks in

consideration; rather, the

"Locking devices" in any other way for a fixation of the pressing jaws at the respective

associated base jaw, for example, by clamping action, by magnetic forces, or the like.

In the following, the present invention will be more apparent from the illustrated in the drawings

Embodiments explained in more detail. It shows

Fig. 1 a in a radial press according to the invention according to a first embodiment of the

Insert coming base jaw in a first perspective view,

Fig. 2, the base jaw of Fig. 1 from another

Perspective,

Fig. 3 a in the context of the present invention for

Press jaw change usable

Quick-change device from a first perspective, 4 shows the quick-change device according to FIG. 3 from a different perspective,

Fig. 5, the quick-change device according to the figures

3 and 4 with a recorded on it

Die set,

Fig. 6 shows a phase of the press jaw change at the

Base jaws according to Figures 1 and 2 having radial press,

FIG. 7 shows a comparison with FIGS. 1 and 2

modified, in an inventive

Radial press after a second

Embodiment used coming

Basic jaw in a first perspective

View,

Fig. 8, the base jaw of Fig. 7 from another

Perspective and

9 shows a modification of FIGS. 3 and 4

shown tendon11Exchange device.

The basic jaw 1 illustrated in FIGS. 1 and 2 of the radial press 2 shown in detail in FIG. 6 and having eight such base jaws 2 has a wedge-shaped configuration roughly as such in a manner known per se. To her radially displaceable guided

Support on a frontal support disk 3 of the

Radial press 2 is at a first end face 4 of the base jaw 1, a guide groove 5 with T-shaped

Provided cross-section, which cooperates with a mounted on the support plate 3, designed as a sliding block guide block.

The base jaw 1 has radially inside a - executed according to a circular cylinder section - Pressbacken- support surface 6 and adjacent thereto in the circumferential direction, adjacent to both sides of the pressing jaw support surface each have a side surface 7, 8. The two

Side surfaces 7, 8 are oriented approximately at an angle of 45 ° to each other, so that the one another

opposite side surfaces 7, 8 of two adjacent base jaws 1 at least substantially parallel to each other. On both sides are three each receiving the ends of return springs 9, which in each case between two adjacent

Base jaws 1 act in the sense of opening the pressing tool, serving pockets 10 are provided. Furthermore, the base jaw 1 radially inward, arranged approximately centrally to the pressing jaw support surface 6, a receptacle 11 for a pin-like fixing projection 12, which radially outward - at the intended to rest against the pressing jaw support surface 6 of the associated base jaw 1, also approximately according to a circular cylindrical portion running counter surface 13 of the pressing jaw 14 - from the on the

Base jaw 1 to be mounted pressing jaw 14 protrudes.

The position assurance of each placed on the base jaw 1 pressing jaw 14 is effected by cooperation of an integrated into the base jaw 1

Locking device 15 with the engaging in the receptacle 11 pin-like fixing projection 12 of the

Pressing jaw 14 by positive locking. The

Locking device 15 is accessible through the opening 16 provided on the first end face 4 of the base jaw 16; it can be unlocked by means of an inserted into this pin-shaped unlocking.

In the scope described above corresponds to the

Base jaw 1 the well-known prior art, so that it does not require further explanation. This applies in the same way for those with this base jaw

equipped radial press 1 by the way, for example with regard to the basic construction and the radial movement of the base jaws 1 effecting

Drive concept; because that's what it comes for

present invention, and also in this respect, the radial press may correspond to the well-known prior art.

In implementation of the present invention, the

Base jaws 1 each on their pressing jaw support surface 6, a channel-like recess 17, which - in

Oriented circumferentially - extends from the receptacle 11 to a first side surface 7 of the two side surfaces 7, 8 of the base jaw 1 and opens at this.

The eight pressing jaws 14, which may be made in accordance with the well-known prior art, can be attached as a complete die set 18 at the same time to the eight base jaws 1. For this purpose, as illustrated in FIG. 5, they are shown in FIGS. 3 and 4

Quick-change device 19 was added. This includes a handle 20 and a non-rotatable with this

The latter has eight pins 22, which engage in corresponding holes of the pressing jaws 14, and adjacent to these arranged holding magnets 23.

The insertion of the die set 18 in the formed between the eight base jaws 1 installation space takes place by - during a first axial movement phase - the pin-like fixing projections 12 each in a between two mutually adjacent base jaws. 1

existing free space 24 led to be moved, and indeed so far until they each have an orifice 25 of the provided on the base jaws 1 recesses 17 opposite stand. This position of the unit

Quick-change device 19 and recorded thereon pressing jaws 14 is thereby by a disc 26th

defines which, part of the

Quick-change device 19 forming, by frontal contact with the base jaws 1 as a depth stop 27th

acts. By turning the quick-change device 19 on its handle 20 about its axis by 22.5 ° reach the fixing projections 12 each - along the associated recess 17 - in their aligned with the associated receptacle 11 position. The rotational movement is limited by the interaction of the Fixiervorsprünge 12 and the recordings 11 itself. By radial collapse of the base jaws 1 corresponding to a closing of the

Pressing tool enter the fixing projections 12 completely into the receptacles 11 and reach the mating surfaces 13 of the pressing jaws 14 for contact with the pressing jaw support surfaces 6 of the base jaws 1. Die

Locking devices 15 engage, and in each case one base jaw 1 and a pressing jaw 14 mounted thereon jointly form a respective compact.

The basic jaw 1 'illustrated in FIGS. 7 and 8 represents a modification of the base jaw 1 according to FIGS. 1 and 2

above explanations in a corresponding manner.

Decisive differences are two explained in more detail below recesses 28, 29. Namely, the

Base jaw 1 'at that first side surface 7, at which the recess 17 opens, in the transition region of the

Pressing jaw support surface 6 to just the first side surface 7 extending from the mouth 25 of the recess 17 to the first end face 16 of the base jaw 1 'extending recess 28. At the opposite, second edge region 30 of the pressing jaw support surface 6 is a further, second recess 29 is provided, which is - about mirror image of the first recess 28 - over a comparable length as this also in the axial

Direction to the first end face 16 of the base jaw 1 'extends.

The two opposing recesses 28, 29 of two adjacent base jaws 1 'define a type of guideway for a Pressbacken- Fixiervorsprung 12, with a relation to the rest of the free space 24 between the respective base jaws 1' widened width.

9 illustrates the preferred configuration of the quick-change device 19 (see FIGS. 3 to 5) with an unlocking arrangement 31. This comprises eight

Entriegelungselemente 32 in the form of Entriegelungsstiften 33, which on the - the depth stop 27 forming - disc 26 are attached. During the axial

Positioning the quick-change device 19 enter the Entriegelungsstifte 33 in the holes 16 of

Base jaws 1 or 1 'and unlock the

Locking devices 15. During the subsequent rotational movement of the unit from handle 20 and

Pressing jaw holder 21 (including on it

Pressing jaw set 18), the disc 26 remains in place. For this purpose, the pressing jaw holder 21 and the disk 26 (about the tool axis X) are rotatable relative to each other.

Claims

claims

radial press

(2), comprising a plurality of arranged around a pressing axis, radially movable to the pressing axis press bodies and a

Drive unit for moving the compacts in the direction of the pressing axis or away from it, with the following features:

The compacts are constructed in several parts and each have a base jaw (1, 1 ') and a

replaceable on this fixed pressing jaw (14) on;

the base jaws (1, 1 ') each comprise a radially inwardly arranged pressing jaw support surface (6) and, adjacent thereto in the circumferential direction, two

Side surfaces (7, 8);

the pressing jaws (14) each lie with one

Counter surface (13) on the pressing jaw support surface (6) of the associated base jaw (1, 1 ') and have one of the mating surface (13) projecting

Fixing projection (12), which in one at the

Base jaw (1; 1 ') provided receptacle (11)

enters and with a arranged there

Locking device (15) cooperates;

characterized by

that the base jaws (1, 1 ') each at their

Pressing jaw support surface (6) extending from the

Receiving (11) up to one of the side surfaces (7, 8) extending, opening at this channel-like

Have recess (17).

Radial press according to claim 1, characterized

characterized in that the recess (17) extends in the circumferential direction.

3. Radial press according to claim 1, characterized in that the recess extends along a helical line.

4. Radial press according to one of claims 1 to 3,

characterized in that in each case the

Press jaw support surfaces (6) and the counter-surfaces (13) are designed according to a circular cylindrical portion.

5. Radial press according to one of claims 1 to 4,

characterized in that the base jaws (1 ') each at that side surface (7) at which the respective recess (17) opens, one from the mouth (25) of the recess (17) to a

Having end face (4) of the base jaw (1 ') extending recess (28).

6. Radial press according to claim 5, characterized

characterized in that also on the opposite, second edge region (30) of the pressing jaw support surface (6) in the axial direction to the end face (4) of the base jaw (1 ') extending recess (29) is provided.

7. Radial press according to one of claims 1 to 4,

characterized in that the base jaws (1 ') each at the mouth (25) of the recess (17) opposite side surface (8) extending from one of the end faces (4) to the mouth (25) of the recess (17) of the adjacent Base jaw (1 ') extending recess (29).

8. Radial press according to one of claims 1 to 7, characterized in that at least two geometric differently executed

Fixing projections (12) are provided.

9. Radial press according to one of claims 1 to 8,

characterized in that at least two geometrically differently executed recordings

(11) are provided.

Radial press according to one of claims 1 to 9, characterized in that the

Locking device (15) exerts on the cooperating with the fixing projection (12) a radially outwardly directed biasing force.

Radial press according to one of claims 1 to 10, characterized in that the base jaws (1; are composed of several parts and one each

Include intermediate jaw on which the pressing jaw support surface (6) is executed.

12. Radial press according to one of claims 1 to 11,

characterized in that the

Locking means (15) through the front side of the base jaws (1, 1 ') arranged holes (16) are unlocked through.

13. Radial press system comprising

a radial press (2) according to claim 12,

- A press jaw magazine with sentence wise

stocked, suitable for their attachment to the base jaws (1, 1 ') of the radial press suitable change-pressing jaws and - a common press jaw change

enabling quick - change device (19) with a handle (20), a pressing jaw holder (21) and an unlocking arrangement (31) with the front side into the bores (16) of

Basic jaws (1; 1 ') insertable

Unlocking elements (32),

wherein the pressing jaw holder (21) and the

Unlocking arrangement (31) of

Quick change device (19) about a tool axis (X) are rotatable relative to each other.

14. Radial press system according to claim 13, characterized

in that the pressing jaw holder (21) of the quick-change device (19) is non-rotatably connected to its handle (20).

15. Radial press system according to claim 13 or claim 14, characterized in that the

Quick-change device (19) one with the

End faces (4) of the base jaws (1, 1 ')

having cooperating depth stop (27).

16. Radial press system according to claim 15, characterized

in that the unlocking arrangement (31) is arranged on the depth stop (27).