DE202004017822U1 - Tube holding device for flange pressing has two clamping jaws with a groove for the tube and a tensioning and removable pressure unit - Google Patents

Abstract

A tube holding device comprises two clamping jaws (1,2) with a groove (3,4) for the tube, a tensioning device and a pressure unit at the end of the clamping channel by which the tube can be distorted. The jaws and tensioning device form a separate unit with the held tube with the pressing unit (171,1272) being removably attached by couplings.

Description

The Invention relates to a device for holding a pipe, consisting of a first and a second jaw, which each have a receiving groove for clamping reception of the tube and which for clamping support of the tube by means of a clamping device are braced against each other and which at the end of the grooves formed clamping channel a press device is assigned, by which deforms the protruding from the clamping channel pipe end is.

devices for holding pipes of the generic type, for example in so-called crimping presses used. Such crimping presses serve to deform the pipe end of a pipe, for example a sealing flange, a crimping head or the like. To form at the end of the pipe.

For example, from the DE 32 30 444 A1 a flanging press for metal pipes known. This known flanging press is provided in particular for brake lines of motor vehicles, coolant lines or hydraulic lines. This crimping press consists of a Rohrinspannvorrichtung with two parallelepiped jaws, each having a plurality of certain pipe diameter matched, approximately semi-cylindrical grooves. In this case, the two jaws are clamped by means of a clamping device against each other, so that a pipe arranged in the receiving grooves is held tightly between the jaws in their grooves. For this purpose, a Schraubspannvorrichtung is provided, which consists of a standing vertically on a base plate threaded pin and a clamping nut. On these threaded pin both jaws are placed and then screwed the nut. In order to keep the two jaws in the dissolved state of the clamping nut at a distance from each other, an axial compression spring is provided, which is axially supported on both jaws. When loosening the clamping nut thus both jaws are held in dependence on the position of the clamping nut at a distance from each other. The axial compression spring is arranged concentrically to the threaded pin. From the abgese hen that only limited clamping forces can be applied with the clamping nut, the exchange of jaws is relatively complicated, since the complete construction must be disassembled.

Accordingly, lies The invention is based on the object, a device of the generic type such to design, on the one hand, the jaws simply interchangeable and on the other hand high clamping forces can be applied.

The The object is achieved in that the jaws and the clamping device with the recorded tube form a separate unit and that pressing device via coupling elements solvable on this unit is fastened.

By the embodiment of the invention will a device for holding a pipe is provided, which extremely simple is manageable and by means of which extremely high clamping forces the clamped pipe can be applied.

To it is envisaged that the jaws with the clamping device at clamped pipe form a separate unit. By this configuration The clamping device is variable to the respective conditions of use to passable. That is, the tensioner is also separate Component can be formed, so that their dimensioning independently of the jaws themselves, depending on the requirements of the required clamping forces, free selectable is. It is further provided that pressing device via coupling elements solvable on this unit is fastened. Also by this configuration, the jaws variably combinable with different pressing devices, see above that optionally different deformation devices, in particular different crimping devices, can be combined with the jaws.

Further advantageous embodiments of the invention are the dependent subclaims 2 to 33 removable.

By the embodiment according to claim 2, the jaws are extremely simple Way with the pressing device fixedly engageable. For this purpose it is provided that the jaws for coupling with the pressing device externally are provided with transversely to the clamping channel extending engagement grooves and that the pressing device is provided with engaging ledges over which the pressing device is engaged with the engaging grooves of the jaws can be brought.

By those according to claim 3 provided centering pin is a precise alignment of the jaws ensured with its two grooves to the formation of the clamping channel.

Due to the configuration according to claim 4, the jaws are always kept in engagement with the clamping device, whereby safe handling is ensured. For this purpose, it is provided that the jaws can be brought from a non-clamping initial position in a clamping end position and that the jaws in their initial position by between the Klemmba cken arranged axial compression springs are held.

By according to the claim 5 provided stop the jaws that remain safe too when solved Clamping device connected together.

The Embodiment according to claim 6 allows a very simple Production of the jaws and the stop. This can be provided that the stop is formed by retaining rings which are removable are arranged on the centering pin.

Supplement by the embodiment or alternatively may also be provided according to claim 7 be that this stop are formed by two guide screws, which inserted through through holes of the first jaw through and with a defined screwing into internal thread of the second Clamping jaw are screwed in. This variant also ensures a simple production of the jaws and the stop.

Further can this according to claim 8 be provided that the guide screws with their screw heads are included in depressions of the through holes and that the depressions have a depth chosen such that the screw heads in the tensioned end position of the jaws in the depressions sunk. This can be done by the guide screws to a unit interconnected jaws by a any tensioning device, e.g. a vise, against each other be tightened without the guide screws can hinder the clamping process.

By the embodiment according to claim 9 will be an additional guide reached the two jaws. It is envisaged that the guide screws are provided with guide shafts, on which the first jaw adjustable with their through holes led with little play is. These leadership shafts can too be provided as an alternative to the centering pin according to claim 3.

By the embodiment according to claim 10, the second jaw is precise can be positioned on or in the clamping device. It is intended that the clamping device consists of a base plate, a support wall and consists of a press wall and that the support wall has a centering pin and that the second jaw on its the receiving groove across from lying outside has a center hole, with which the second jaw fitting on the centering pin can be plugged.

For one tight fit of the second jaw on the support wall, can the two jaw according to claim 11 screwed to the support wall be.

By the embodiment according to claim 12, the press wall is exchangeable in a simple way, so here also different devices, such as hydraulic cylinders or the like. Can be used for compressing the jaws. Further is simplified by the separate design of the press wall manufacturing.

Around the pressing wall precise to align on the base plate, according to claim 13, two in the base plate pressed-in dowel pins provided on which the press wall with two fitting holes can be placed.

By those according to claim 14 provided, arranged in the press wall of the clamping device adjusting spindle for clamping the two jaws, high clamping forces can be applied.

By the embodiment according to claim 15 the pressing forces applied by the adjusting spindle become optimal introduced into the first jaw, so that the wear is reduced becomes. For this purpose, it is provided that between the adjusting spindle and the first jaw a pressure piece is provided, which is rotatably mounted on the adjusting spindle.

According to claim 16, the pressing device can be extremely simple be constructed and one in the assembled state on the jaws Have transverse to the clamping channel extending support plate, which provided with two parallel to the clamping channel extending U-legs is at the free to the jaws directed towards the ends Engagement strips are arranged. By this configuration is also a very simple one Alignment of the pressing device in the desired target position feasible.

Similarly applies to the embodiment according to claim 17, after which the support plate is provided with a central through thread through which a compression screw is screwed through.

By the embodiment according to claim 18 is the pressing device for beading can be used with different sized tubes and optionally converted. To can be provided that the compression screw with a replaceable Flaring pressure piece provided is that on the jaws directed towards the end of the compression screw is rotatably mounted.

Due to the embodiment according to claim 19 a precise positioning of the tube is ensured in the clamping channel. For this purpose, the jaws are provided in the area surrounding their grooves to the crimping pressure piece with depressions. The second jaw further has a variable engageable before the depressions stop, which forms an insertion limit for determining the length of the projecting out of the clamping channel tube.

According to claim 20 can the grooves of the jaws to improve the clamping Holder of the tube have a profiled surface.

According to claim 21 can to the surfaces the receiving channel forming grooves with in the circumferential direction consecutive by circumferentially successive Cylinder sections of the grooves provided recesses formed be, which alternately the same or different radii of curvature have and form a kind of wave profile.

alternative or in addition These may according to claim 22 the surfaces the receiving channel forming grooves with axially behind each other lying recesses be provided, between which axially successive Nutabschnitte lower groove depth are arranged, wherein the groove width the recesses used for clamping bracket and groove sections is constant and the outside diameter corresponds to the male pipe.

to concentric alignment of the tube in the clamping channel can according to claim 23 be provided that two different groove depths of the wells and the groove portions are provided and that the groove portions lesser Depth of the receiving groove of the first jaw the groove sections lesser Depth of the receiving groove of the second jaw paired are.

By the embodiment according to claim 24 become invalid Deformation of the surface of a clamped ear avoided. It is provided that the difference the sum of the groove depths of the grooves in a range of 0.01 and 0.15 mm and is preferably 0.07 mm.

By those according to claim 25 provided clamping length the recesses and the groove portions of about 4 to 11 mm, be relatively large pressing surfaces of achieved individual recesses and groove sections, so that an injury the surface the clamped brake line with nevertheless high surface pressure is safely excluded.

ever according to the requirements according to claim 26, the radial and axial depressions according to the preceding claims 21 to 25 be provided in various combinations, so stet the optimal hold of a clamped pipe can be achieved.

The holding forces are according to claim 27 further enlargeable thereby, that the surfaces of the the clamping channel forming grooves an arithmetic mean roughness Ra from 1 to 10.0 μm exhibit.

By the embodiment according to claim 28 is a concentric recording of the clamped tube in the terminal channel guaranteed. To is provided that the receiving groove of the first jaw and the Receiving groove of the second jaw have the same basic depth.

According to claim 28 may be provided that the formed from the grooves clamping channel a clamping length for Recording of the tube from 6 to 10 cm. Preferably here a clamping length provided by about 7 cm. By this measure, a sufficiently large "clamping surface" and thus a sufficient Hold the tube in the terminal channel, the dimensions of the entire Device, in particular for an insert directly on site, independent of a vise or the like., Are still handy.

By according to the claim 30 provided handle handling is greatly facilitated.

According to claim 31 may be provided that the clamping device by both sides formed to the grooves arranged clamping screws by which the jaws are braced against each other. Through this Design is no external clamping device necessary or can Such an external clamping device in addition to increasing the clamping forces be used. Will be provided in accordance with claim 31 clamping screws used as the sole tensioning device, so form the jaws a very handy Unit for the clamping support of a tube, which in simple on-site, e.g. can be used on a motor vehicle. After clamped attachment of the jaws, for example, as a Pipe formed brake line can then use the pressing device the jaws are engaged and the pipe end after Need to be deformed.

According to claim 32 it can be provided that the central through thread of the support plate is part of a threaded bush, which is interchangeable in an internal thread of the support plate is screwed. Since the internal thread may be subject to increased wear due to the sometimes very high pressing forces, the maintenance costs are kept extremely low by this design, since in case of damage, only the threaded beech may need to be replaced together with the compression screw.

Of the Stop according to claim 19 may further according to claim 33 optionally arranged from one in the region of the front end faces of the jaws, be formed before the clamping channel pivotable swing wall or off one arranged in the region of the front end faces of the jaws, formed before the clamping channel sliding stop plate. Such Constructions are extremely simple manageable and also inexpensive to produce.

Based the drawing below the invention with reference to some embodiments explained in more detail. there the invention is not limited to the specific embodiment of the embodiments, but comprises also for the same agent acting on the expert. It shows:

1 an exploded perspective view of two jaws together with their fasteners;

1a two clamping screws as clamping device in a perspective exploded view;

2 a perspective view of the jaws 1 in the assembled state;

2a a section II-II of the jaws 2 ;

3 a section III-III of the jaws off 2 ;

4 an exploded perspective view of an embodiment of a separate clamping device according to the invention;

5 a vertical section through the clamping device 4 with the inserted jaws from the 1 to 3 in a non-tensioned initial position of the jaws;

5a a vertical section through the clamping device 4 with the inserted jaws 1 to 3 in a tensioned end position of the jaws;

6 the clamping device with inserted jaws off 5 in a perspective exploded view together with a crimping device formed as pressing device;

7 a section VII-VII through the clamping device 6 with attached to the jaws pressing device;

8th an enlarged sectional view of the grooves of the two jaws 1 ;

9 . 10 . 11 different areas of the cross-sectional shape of the clamping channel formed by the grooves of the jaws according to the view IX and the cutting guides XX and XI 8th ;

12 an enlarged section XII of the receiving groove of a jaw 8th ;

13 a further embodiment of a receiving groove of a jaw, which is provided with circumferentially successive cylindrical recess, which form a kind of wave profile;

14 a further embodiment of a stop in the form of a stop plate for positioning a pipe to be clamped in a perspective view;

14a the Anschalgblech off 14 in mounted on the second jaw condition in perspective;

15 an exploded perspective view of the second jaw together with another embodiment of a pressure plate and an adjusting spindle.

16 a vertical section through an inventive device consisting of two clamped by clamping screws clamped jaws, to which a further Auführungsform a pressing device is attached.

1 shows an exploded perspective view of a first jaw 1 and a second jaw 2 , between which a pipe is clamped receivable. To this end, each of the jaws 1 and 2 in each case an approximately semicylindrical receiving groove 3 respectively. 4 on, which in each case over approximately the entire axial length of the respective jaw 1 respectively. 2 extends. These two grooves 3 and 4 are each in a flat clamping surface 5 respectively. 6 the respective jaw 1 respectively. 2 admitted. On her the respective clamping surface 5 respectively. 6 opposite outside 7 respectively. 8th , rejects each of the jaws 1 and 2 in each case an outwardly open engagement groove 9 respectively. 10 on, with which a Pressvorrich device in the assembled state can be brought into engagement, as will be explained later.

The two jaws 1 and 2 are positioned on each other so that the two grooves 3 and 4 form a clamping channel for receiving a pipe to be held. For precise alignment of the two jaws 1 and 2 relative to each other in the present embodiment, two centering pins 11 and 12 provided, which in the present embodiment in two injection holes 13 . 14 the second jaw 2 are pressed in operation. These two injection holes 13 and 14 run with their respective longitudinal central axis 15 respectively. 16 each at right angles to the outside 8th the jaw 2 , The two centering pins 11 and 12 overhang in the in the press-in holes 13 and 14 pressed state the plane clamping surface 6 to the first jaw 1 out.

For mounting the first jaw 1 at the second jaw 2 this will be with two mating holes 17 and 18 on the respectively associated centering pin 11 respectively. 12 attachable and along this centering pin 11 and 12 relative to the second jaw 2 adjustable.

For fixing the first jaw 1 on the two centering pins 11 and 12 are two guide screws 19 and 20 provided, which in corresponding internal thread 21 and 22 the second jaw 2 can be screwed. For this purpose, the two guide screws 19 . 20 a corresponding threaded pin 23 respectively. 24 on which a cylindrical guide shaft 25 respectively. 26 followed. By the length of the guide shafts 25 . 26 is the maximum possible distance of the first jaw 1 to the second jaw 2 predefined. At the end of the respective leadership 25 respectively. 26 points each of the guide screws 19 respectively. 20 a radially extended screw head 27 respectively. 28 on.

In the assembled state, the respective guide screw protrudes 19 respectively. 20 with her leadership 25 respectively. 26 a guide hole 29 respectively. 30 , which are each perpendicular to the clamping surface 5 the first jaw 1 running in this jaw 1 is arranged. The two guide holes 29 and 30 are in their position according to the internal thread 21 and 22 the second jaw 2 arranged. Furthermore, through the two guide shafts 25 and 26 an additional guide of the two jaws 1 and 2 reached each other.

How out 1 as further shown, each of the guide bores has 29 respectively. 30 to the outside 7 the first jaw 1 towards, a radially extended depression 31 respectively. 32 on. These depressions 31 and 32 serve to accommodate the respective screw head 27 respectively. 28 the respectively associated guide screw 19 respectively. 20 ,

The depth of these depressions is on the length of the guide shafts 25 and 26 as well as the height of the screw head 27 and 28 tuned so that the screw heads 27 and 28 in each operating position of the two jaws 1 and 2 completely submerged in the respective associated depression 21 respectively. 23 is arranged. This means that in the assembled state, the two guide screws 19 and 20 on the one hand, the maximum possible distance between the two jaws 1 and 2 with its two clamping surfaces 5 and 6 define each other and on the other hand, the two jaws 1 and 2 through the two guide screws 19 and 20 are permanently connected to each other. Because the two screw heads 27 and 28 in the depressions 31 and 32 even then are completely submerged arranged when the two jaws 1 and 2 with their clamping surfaces 5 and 6 just in contact with each other, are the two jaws 1 and 2 by a clamping device, such as a conventional vise, braced with each other, without any collisions with the guide screws here 19 and 20 may occur.

To the two jaws 1 and 2 in the through the guide screws 19 and 20 To keep defined maximum distance from each other, in the present embodiment, a total of four Axialdruckfedern 33 provided, which in each case four blind holes 34 respectively. 35 the first jaw 1 or the second jaw 2 assigned. The depth of these blind holes 34 and 35 is on the axial length of the Axialdruckfedern 33 adjusted so that the axial compression springs 33 the two jaws 1 and 2 in its non-clamping initial position, securely on the guide screws 19 and 20 being held.

How out 1 can be further seen, the centering pins 11 and 12 each with safety grooves 182 and 183 Be provided in which circlips 180 and 181 can be used detachably. Such a configuration may be complementary to the two guide screws 19 and 20 as an additional stop to determine the maximum possible distance of the two jaws 1 and 2 be seen from each other before. However, such may be one of the circlips 180 and 181 existing limit stop for the maximum distance of the clamping jaws 1 and 2 also as an alternative to the guide screws 19 and 20 be provided. In this case, instead of the guide screws 19 and 20 also two clamping screws 171 and 172 ( 1a ) in the internal thread 21 and 22 the second jaw 2 be screwed, which for this purpose a corresponding, not radially expanded threaded shaft 175 respectively. 176 exhibit. The screw heads 173 and 174 the two clamping screws 171 and 172 are also here in the depressions 31 and 32 the first jaw 1 completely recorded. In this embodiment, therefore form the jaws 1 and 2 together with the clamping screws serving as clamping device 171 and 172 a clamping unit for clamping receiving a pipe to be clamped, which is extremely variable use.

Next is out 1 recognizable that the two jaws 1 and 2 on their front ends 44 each with a transverse to the respective longitudinal central axis 36 respectively. 37 the respective receiving groove 3 respectively. 4 extending depression 38 respectively. 39 are provided. These depressions are symmetrical to the respective receiving groove 3 respectively. 4 angeord net and extend starting from the grooves 3 and 4 from the respective clamping surface 5 respectively. 6 to the respective outside 7 respectively. 8th the jaw 1 respectively. 2 ,

Through these two depressions 38 and 39 is the clamping position of a tube in the from the two grooves 3 and 4 formed clamping channel precisely definable.

For this purpose, in the present embodiment, the second jaw 2 a swing wall 40 assigned as a stop, which via a bearing screw 41 on the jaw 2 is pivotally fastened. For this purpose, the bearing screw 41 a storage section 42 on, with which the bearing screw 41 through a corresponding bearing bore 43 the swing wall 40 can be plugged through. Below the sink 39 and in the area of the clamping surface 6 has the second jaw 2 on its front end 44 an internal thread 45 in which the bearing screw 41 can be screwed tight.

How out 1 can be further seen, the pivot wall 40 an approximately semi-cylindrical stop plate 46 on, with which the swing wall 40 in the assembled state of the two jaws 1 and 2 in the area of the depression 38 the first jaw 1 einschwenkbar and thus in axial extension to the receiving groove 3 can be arranged. To fix this position is the swing wall 40 on their bearing bore 43 opposite side with a receiving slot 47 provided with which the pivot wall 40 with a locking screw 48 in her the two depressions 38 and 39 covering stop position latching engageable. For this purpose, the locking screw 48 also with a cylindrical bearing section 49 provided with which the receiving slot 47 the swing wall 40 latching engaged in its stop position.

For mounting the locking screw 48 has the jaw 2 above its sink 39 and in the area of the clamping surface 6 in their front end 44 another internal thread 50 on. In their assembled state, the two jaws form 1 and 2 a unit for clamping receiving a pipe. In this mounted state are the two jaws 1 and 2 can be used in a clamping device through which the two jaws 1 and 2 are braced with each other and with their clamping surfaces 5 and 6 can be pressed against each other.

For use in such a tensioning device, as can be made out 1 it can be seen, the first jaw 1 with a sink 51 be provided, which on the back outside 7 symmetrical to the two depressions 31 and 32 or symmetrical to the two guide holes 29 and 30 is centrally located.

2 shows the assembled state of the two jaws 1 and 2 , Here is the relaxed state of these two jaws 1 and 2 represented in which these by the guide screws 19 and 20 have defined distance.

Furthermore, in 2 the swing wall 40 over the bearing screw 41 at the front end 44 the jaw 2 hinged. In solid lines is in 2 the open position of this swing wall 40 shown. By a pivoting movement in the direction of the arrow 85 enters the swing wall 40 in the in 2 in stop position shown in phantom lines 86 in which the stop plate of the pivot wall 40 both the sinking 39 the second jaw 2 as well as the depression 38 the first jaw 1 at least partially covering. At least is through the stop plate 46 ensures that the sinking 38 at least in the area of the receiving groove 3 is covered, so that one in the receiving groove 3 as well as the receiving groove 4 from behind in the direction of the arrow 87 inserted tube on the swing wall 40 with his stop plate 46 pending. That is, in this state, the pipe is the front end of the two grooves 3 and 4 by the extent of the depth of the two depressions 38 and 39 surmounted by a defined length. Such a defined projection of the tube over the grooves 3 and 4 In addition, for example, may be required for crimping this projecting pipe end.

The unit according to the embodiment according to 1 consisting of these two jaws 1 and 2 , the centering pin 11 . 12 and the two guide screws 19 and 20 can be introduced for a tight clamping a pipe in a separate clamping device. is used as a clamping device, for example, a vise, so can the upper side to the defined Auf Acceptance of the two jaws 1 and 2 between the jaws of a vise the in 2 in phantom lines illustrated stop plates 88 and 89 be provided. These stop plates prevent the two jaws 1 and 2 slip through the jaws of a vise after insertion in unstressed condition.

2a shows a section II-II 2 , From this representation it can be seen that the rear guide screw 19 with its threaded pin 23 in the internal thread 21 the second jaw 2 is screwed. The guide screw protrudes through 19 with her leadership 25 the guide hole 29 the first jaw 1 , The screw head 27 is located in the outer recess 31 the guide hole 29 , Furthermore, it is off 2a it can be seen that the centering pin 11 (here without safety groove 182 and without circlip 180 shown) in the injection bore 13 the second jaw 2 is pressed firmly. With his over the clamping surface 6 the second jaw 2 protruding end is the centering pin 11 adjustable with the fitting hole 17 the first jaw 1 engaged. It is off 2a recognizable by the screw head 27 the lead screw 19 in this illustrated, assembled state, the jaw 1 a predefined distance to the jaw 2 having. This distance represents the unstrained starting position of the two jaws 1 and 2 represents.

Due to the depth of the depression 31 as well as the length of the guide shaft 25 and the height of the screw head 27 as well as the selected travel of the two jaws 1 and 2 relative to each other ensures that even when clamped, ie when the two clamping surfaces 5 and 6 the first jaw 1 and the second jaw 2 lie flat against each other, the screw head 27 not over the outside 7 the first jaw 1 can protrude. By this configuration, it is certainly possible, the two mounted jaws 1 and 2 for clamping a pipe, for example, between the jaws of a conventional vice insert and brace each other.

3 shows a sectional view along the section line III-III 2 , In this sectional view is in dashed lines the depression 32 together with the guide screw 20 as well as the fitting bore 17 with the centering pin 11 recognizable. Besides, it is off 3 the continuous engagement groove 9 the first jaw 1 recognizable. This in the illustrated preassembled state 3 opposite is the engagement groove 10 the second jaw 2 arranged. Also is off 3 recognizable that the centering pin 11 in the press hole 13 the second jaw 2 is pressed. The swing wall 40 is in the open position 2 and lies flat on the two front end faces 44 the two jaws 1 and 2 mobile. In particular, is off 3 here recognizable that the swing wall 40 also in the open position to the first jaw 1 protrudes.

The two out 3 recognizable axial compression springs 33 stand each with the blind holes 34 respectively. 35 engaged in the prestressed state. In this non-strained state is simply a tube 90 between the two grooves 3 and 4 the jaws 1 and 2 einbringbar, as in 3 is shown in phantom lines. It can also be seen here that through the swing wall 40 the axial projection of the tube 90 in the two recesses 38 and 39 is clearly defined. Thus, from the 2 . 2a and 3 clearly recognizable that the two jaws 1 and 2 in this preassembled state a complete unit for clamping the tube 90 form.

To tighten these two jaws 1 and 2 from the preceding drawing figures, instead of a conventional vise or in 1a illustrated clamping screws 171 and 172 an external, separate clamping device 95 be provided, like these 4 in a perspective exploded view is visible.

How out 4 it can be seen, this tensioning device exists 95 from a base plate 96 , a supporting wall 97 , a clamping wall 98 and an adjusting spindle 99 and a printing plate 100 , In the present embodiment, the support wall 97 integral part of the base plate 96 and at right angles to this running on the base plate 96 arranged. The clamping wall 98 is formed in the present embodiment as a separate component and on the base plate 96 in the distance to the supporting wall 97 on settable. For precise positioning of this clamping wall 98 on the base plate 96 are two centering pins in the present embodiment 101 provided, which in two fitting holes 102 the base plate 96 are einpressbar. In this pressed state these two centering pins protrude beyond 101 the base plate vertical to the clamping wall 98 out so that this position accurate over two guide holes 103 on the two centering pins 101 is settable.

For fixed installation of the attached clamping wall 98 at the base plate 96 are two mounting screws 104 provided, which through two through holes 105 the base plate 96 can be plugged through. The two Durchgangsboh conclusions 105 have underside in the base plate 96 corresponding depressions 106 on, which for sunk receiving the two screw heads 107 the mounting screws 104 serve. According to the arrangement of these through holes 105 has the clamping wall 98 two blind hole threads 108 on, in which the two mounting screws 104 can be screwed.

Furthermore, it is off 4 seen that the pressure plate 100 on her to the adjusting spindle 99 directed side a cylindrical recess 109 having, with which the pressure plate 100 on an axially projecting pressure pin 110 the adjusting spindle 99 is settable. For attaching the printing plate 100 at the sink 51 the outside 7 the first jaw 1 has the pressure plate 100 one fitting in the depression 51 usable centering section 111 on. For fixing the printing plate 100 with its centering section 111 at the first jaw 1 may be provided clamping screws which vertically through the first jaw 1 are screwed through and into the depression 51 protrude (not explicitly shown in the drawing). However, there are other ways to determine the pressure plate 100 conceivable, with the pressure plate 100 may also be configured differently in their shape, as will be explained later.

For centered and aligned receiving the second jaw 2 on the supporting wall 97 is a centering pin in the present embodiment 112 provided, which in a corresponding fitting hole 113 the supporting wall 97 is einpressbar. On the out of the supporting wall 97 outstanding part of the centering pin 112 is the second jaw 2 with a corresponding center hole 114 ( 1 ) can be set to the exact position. For fixed installation of the second jaw 2 can, like this 4 it can be seen, two mounting screws 115 be provided, which through corresponding through holes 116 the diaphragm wall 97 can be plugged in and into two corresponding internal threads 117 ( 1 ) of the second jaw 2 can be screwed.

The arrangement of the centering pin 112 in the supporting wall 97 or the arrangement of the associated fitting bore 113 in the supporting wall 97 is chosen so that the second jaw 2 on the base plate 96 rests and with the longitudinal central axis 37 their recording groove 4 the longitudinal central axis 119 a passage thread 118 the clamping wall 98 cuts. Through this passage thread 118 is the adjusting spindle 99 for adjusting the first jaw 1 relative to the second jaw 2 screwed through. It is between the pressure pin 110 the adjusting spindle 99 and the first jaw 1 the pressure plate 100 arranged for axial support.

How out 4 can be further seen, the two through holes 116 on the outside also one depression each 120 on, which for recessed receiving the respective screw head 121 the two mounting screws 115 serve.

The use of in 4 exemplified clamping device 95 has the advantage that the two jaws 1 and 2 for clamping a pipe are also used independently of location, so that pipes are clamped, which are installed, for example, in a vehicle, a hydraulic system or the like. And there are not or only with increased effort can be disassembled. For clamping the two jaws 1 and 2 also simple clamping screws can be provided, as will be explained in more detail below. Such an embodiment has the advantage that a separate clamping device 95 is not mandatory, but can be used if necessary to increase the clamping forces.

Im in the tensioner 95 assembled state of the 2 apparent jaws 1 and 2 In turn, a compact unit, by means of which in a simple manner a tube is firmly clamped.

For clamping the two jaws 1 and 2 also simple clamping screws can be provided, as will be explained in more detail below. Such an embodiment has the advantage that a separate clamping device 95 is not mandatory, but can be used if necessary to increase the clamping forces.

The assembled unit of jaws 1 . 2 and tensioning device 95 shows 5 in vertical section. It can be seen that the clamping wall 98 fixed on the base plate 96 by means of mounting screws 104 (shown in dashed lines) is mounted. The centering pins protrude 101 accordingly in the fitting holes 103 the clamping wall 98 into it. In this arrangement, the is in the through thread 118 screwed adjusting spindle 99 with its longitudinal central axis 123 on the longitudinal central axis 124 the pilot hole 113 of the centering pin 112 aligned. Here are the two longitudinal central axes 123 and 124 in the same height with the two grooves 3 and 4 the two jaws 1 and 2 , By this configuration, an optimal force is introduced when clamping the two jaws 1 and 2 for clamping support of a tube over the pressure plate 100 through the adjusting spindle 99 reached.

Next is out 5 recognizable that the pressure plate 100 with their deepening 109 fitting on the pressure pin 110 the adjusting spindle 99 is attached. In the in 5 illustrated, non-clamping starting position of the two jaws 1 and 2 have this one through the guide screw shown in dashed lines 19 (and 20 - not visible in the drawing) defined distance from each other. This distance is selected in the present embodiment such that a tube, for example, a crimping head was integrally formed at one end of the two jaws 1 and 2 is removable again. Also shows 5 clearly that the centering pin 11 suitable and adjustable in the guide bore 17 the first jaw 1 protrudes into it. With his this pilot hole 17 opposite end is the centering pin 11 in the corresponding associated injection hole 13 the second jaw 2 pressed in, as already too 2a has been described.

Out 5 is further apparent that the second jaw 2 on the base plate 96 fitted and with its center hole 114 with the centering pin 112 positively engages. This is the jaw 2 over the two mounting screws 115 fixed to the supporting wall 97 assembled. It is easy to imagine that by operating the adjusting spindle 99 the first jaw 1 in the direction of the arrow 126 on the second jaw 2 to be moved and one in the area of the two grooves 3 and 4 arranged pipe fixed between the two jaws 1 and 2 is clamped. This stretched end position of the two jaws 1 and 2 shows 5a ,

How out 5a can be seen, are the two jaws 1 and 2 in the illustrated clamping end position with its two clamping surfaces 5 and 6 in area contact. Furthermore, it can be seen that the two grooves 3 and 4 in this clamping state a common terminal channel 125 form. In this clamping channel 125 is that in 5a shown in phantom lines pipe 90 clamped. Also is off 5a it can be seen that in the illustrated end position of the jaws 1 and 2 the screw head 27 the lead screw 19 sunk in the depression 31 the first jaw 1 is arranged and not axially beyond the outside 7 protrudes. The same applies to the in the injection hole 13 pressed-in centering pin 11 which in the illustrated clamping end position also not on the outside 7 the first jaw 1 protrudes. Due to this configuration, it is possible instead of the illustrated clamping device 95 for clamping support of the pipe 90 in the clamping channel 125 also to use a conventional vise or a similar type of clamping device.

Next, to stabilize the tensioning device 95 a stiffening plate 127 be provided, which in 5a is shown in phantom lines. This stiffening plate 127 is the upper side on the support wall in the present embodiment 97 and on the tensioning wall 98 by means of several mounting screws 128 fixedly mounted. In this embodiment, instead of the two mounting screws 115 as well as the centering pin 112 for example, in the base plate 96 arranged Rastku gel 129 be provided (shown in phantom). This detent ball 129 is for example with the second jaw 2 latchingly engageable in a predetermined position, wherein in this position the adjusting spindle 99 with its longitudinal central axis 123 on the clamping channel 125 is aligned to the necessary clamping forces by the adjusting spindle 99 as optimal as possible in the jaws 1 and 2 initiate.

6 shows a perspective view of the in the clamping device 95 recorded jaws 1 and 2 , where here the tense end position of the two jaws 1 and 2 is shown. It can be seen that the pipe 90 in the clamping channel 125 is clamped and in the area of the depressions 38 and 39 the clamping channel 125 projecting axially forward. The axial projection of the tube 90 within these depressions 38 and 39 is doing, as already described above, through the swing wall 40 determines which in 6 is shown in its inactive downwardly pivoted position.

Next it can be seen that the two jaws 1 and 2 such between the supporting wall 97 and the clamping wall 98 are arranged, that the two engagement grooves 9 and 10 the jaws 1 and 2 laterally from the outside next to the clamping device 95 are accessible. With these engagement grooves 9 and 10 is a pressing device 130 like these in 6 is shown by way of example, can be brought into positive engagement.

This pressing device 130 has a central support plate 131 on, which with a central through thread 132 is provided. At the two lateral ends of the support plate 131 are two parallel to each other and parallel to the longitudinal central axis 133 of the passage thread 132 extending U-legs 134 and 135 intended. In her the support plate 131 opposite end portions have the two U-legs 134 and 135 Recessed grips 136 and 137 on, which is perpendicular to the longitudinal central axis 133 and parallel to each other, wherein the engaging strips 136 and 137 are directed inward. The distance between these two engagement strips 136 and 137 is chosen so that the pressing device 130 with these engaging strips 136 and 137 fitting in the two engagement grooves 9 and 10 the two jaws clamped together 1 and 2 can be brought into engagement. Ie that the pressing device 130 with the engagement strips 136 and 137 vertically, for example, from above in the direction of the arrow 138 in the two engagement grooves 9 and 10 can be inserted in a number of ways. To determine the vertical position can be a on the U-legs 134 and 135 in the area of the engaging strips 136 and 137 screwed stop bar 139 be provided, which in 6 is shown in phantom lines. Here is the height of the U-legs 134 and 135 the sizing of the two jaws 1 and 2 adjusted so that the pressing device 130 in the assembled state with the longitudinal central axis 133 their passage thread 132 coaxial with the longitudinal central axis 140 of the clamping channel 125 is aligned.

In the present embodiment, the pressing device is used 130 for crimping of the clamping channel 125 projecting end of the tube 90 , This is a Presschraube 141 provided, with which a crimping pressure piece 142 interchangeable engageable. Such crimping pressure pieces 142 are well known in the art. For coupling the crimping pressure piece 142 with the prescrew 141 is the crimping piece 142 with a pin 143 provided, with which the crimping pressure piece 142 in a receiving hole 144 the prescrew 141 is pluggable. To secure the crimping pressure piece 143 on the prescrew 141 has the plug tap 143 a circumferential locking groove 145 in which, in the assembled state, two radially into the Presschraube 141 screw-in grub screws 146 intervention.

In the present embodiment, according to the dimensioning of the crimping pressure piece 142 the height of the two depressions 38 and 39 chosen such that the crimping pressure piece 142 in these depressions 38 and 39 for crimping the pipe end of the pipe 90 is insertable.

7 shows a section VII-VII 6 and puts the two jaws 1 . 2 the clamping device 95 , the pressing device 130 and the pipe 90 in the deformed final state. It can be seen that the pressing device 130 with its two engaging strips 136 and 137 her U-thighs 134 and 135 fitting with the two engagement grooves 9 and 10 the two jaws 1 and 2 positively engages. The prescrew 141 is through the through thread 132 screwed through, with the crimping pressure piece 142 in the prescrew 141 inserted and through the two grub screws 146 over the locking groove 145 is secured.

Furthermore, from the 6 and 7 recognizable that the clamping device 95 with a handle 150 is provided, which via a threaded pin 151 interchangeable with the clamping device 95 communicates. Through this handle 150 becomes the handling of the entire device, for example, for crimping the tube 90 considerably relieved.

Next is out 7 recognizable that the dimensions of both the pressing device 130 as well as the two in the clamping device 95 clamped jaws 1 and 2 are chosen such that the Presschraube 141 with its longitudinal central axis 133 precisely on the longitudinal central axis 140 of the two grooves 3 and 4 formed clamping channel 125 is aligned coaxially. This ensures that a crimping head can be machined with the utmost precision. This can be done in 7 illustrated Crimping pressure piece 142 for forming different flanging heads 147 be exchanged for Bördeldruckstücke other shapes.

By the device according to the invention with its jaws 1 . 2 , his clamping device 95 as well as its pressing device 130 is a system, in particular for crimping pipes, provided, which is extremely variable and easy to use. In particular, different jaws can 1 and 2 with different Lich shaped grooves 3 and 4 be easily exchanged for clamping pipes of different diameters. Next, the device according to the invention by the separate clamping device 95 also variably non-stationary on a machine, a motor vehicle or the like. Usable.

For a very tight, clamped hold of the pipe 90 in the clamping channel 125 can the two recording grooves 3 and 4 have a special surface profiling, which will be described in more detail below.

8th shows an enlarged sectional view of the groove areas on the one hand of the grooves 3 and 4 the two jaws 1 and 2 ,

According to the embodiment according to 8th is recognizable that the two grooves 3 . 4 are formed profiled in the axial direction and accordingly as depressions 52 . 53 . 54 . 55 and 56 respectively. 57 . 56 . 59 . 60 and 61 have trained groove sections, between which accordingly not recessed groove sections 62 . 63 . 64 . 65 and 66 respectively. 67 . 68 . 69 . 70 and 71 are arranged. The axial length of the depressions 52 . 53 . 54 . 55 and 56 respectively. 57 . 58 . 59 . 60 and 61 is in the present embodiment about 5 mm, while the axial length of the groove sections lesser depth 62 . 63 . 64 . 65 and 66 respectively. 67 . 68 . 69 . 70 and 71 about 10 mm.

In the area of these depressions 52 to 61 and groove sections 62 to 71 are the boundary edges of the grooves 3 . 4 rounded and each have a radius of curvature of about 0.25 mm, as this in 13 with the reference symbol R for the boundary edges of the receiving groove 4 is shown.

In the 9 . 10 and 11 are thereby in the compressed state of the jaws 1 and 2 resulting cross-sectional shapes of the grooves 3 . 4 formed clamping channel shown in their respective axial regions.

So shows 9 a view IX of the two wells 52 and 57 out 8th , These two wells 52 and 57 form a circular cylinder section, so that the 9 apparent sum of the groove depths T1 is identical to the width B1 of the grooves 3 . 4 formed clamping channel. According to the invention, it is provided here that the axial length of these two depressions 52 and 57 is about 5 mm.

Furthermore, the invention provides that the diameter of the clamping channel in the region of the recesses 52 and 57 about 93% to 98% of the outer diameter of a clamped in the terminal channel tube corresponds. If the pipe to be clamped is, for example, a coated brake pipe with a nominal diameter of 5.25 mm, the diameter of the clamping channel is in the region of these two depressions 52 and 57 and thus the sum of the groove depths T1 and the width B1 of the clamping channel in this area is about 5.1 mm.

In order to prevent unwanted deformations of a clamped tube is in the front, outer end of the wells 52 and 57 a sink 72 respectively. 73 provided, like this 8th it can be seen, which in each case under identical angles of attack α1 and α2 to the respective longitudinal central axis 74 respectively. 75 the respective associated receiving groove 3 respectively. 4 run. The angle of attack α1 or α2 is in a range of 55 ° to 60 ° and is preferably 57.5 ° in the present embodiment. The boundary edges of the depressions 52 and 57 and the depressions 62 and 63 to the respective clamping surface 5 respectively. 6 ( 1 ) are sharp-edged.

The these depressions 72 and 73 opposite end portions of the grooves 3 . 4 form a kind of outlet area and are each in turn with a sink 76 respectively. 77 provided in the present embodiment, the respective longitudinal central axis 74 respectively. 75 have a discharge angle β1 or β2 of 15 °. Through these outlet areas of the depressions 76 and 77 Damage to the surface of a clamped pipe is reliably prevented.

10 shows the cross-sectional shape XX of the grooves 3 . 4 formed clamping channel in the region of the two groove sections 63 and 68 , This cross-sectional shape of the clamping channel is in the areas of the groove sections 62 and 67 . 64 and 69 . 65 and 70 such as 66 and 71 identically formed. Out 10 It can be seen that the sum of the groove depths T2 and the diameter of the clamping channel in this addressed area is less than the width B2 of the clamping channel. It is provided, for example, for clamping a tube in the form of a sheathed brake line, that the sum of the groove depths T2 at an outer nominal diameter of the brake pipe, for example, 5.25 mm is preferably 4.78 mm. Due to this lower sum of the groove depths T2 a sufficiently large clamping force is achieved when clamping the brake line. In order to prevent deformation in the sense of widening in particular of the metallic core of a sheathed brake line, the clamping channel has in the region of the groove sections 63 and 68 a width B2, which corresponds to 5.25 mm exactly the diameter of the sheathed brake line.

11 shows the cross section of the clamping channel in the region of the wells 55 and 60 , what in 8th is illustrated by the section line XI-XI. How out 11 it can be seen, the sum of the groove depths T3 of the clamping channel in this addressed area also has an overall depth which is smaller than the diameter of a pipe to be clamped, in particular a jacketed brake pipe. The sum of the groove depths T3 for the clamping of a brake line with an outer nominal diameter of 5.25 mm is 4.85 mm. The width B3 also corresponds in this area also the diameter of the brake pipe to be clamped and is also 5.25 mm in the present embodiment.

Due to the smaller compared to the nominal diameter of the brake pipe to be clamped sum of the groove depths T3 is also in the region of the wells 55 and 60 a clamping force when clamping example, a sheathed brake line causes. The other wells 53 and 58 . 54 and 59 such as 56 and 61 are identically formed as the wells 55 and 60 , so that in these areas of the clamping channel and the corresponding cross-sectional shape according to 11 results.

Due to the configuration of the individual recesses and groove sections in their axial sequence thus becomes in the axial direction with meh Reren, successive recesses provided clamping channel realized by which an extremely tight fit of a pipe, in particular a sheathed brake line is achieved. In addition to this stepped shaping, the surface of the grooves can 3 . 4 may also be provided with further, surface-distributed depressions, which are produced by the provision of a defined surface roughness with an arithmetic mean roughness Ra of, for example, 7.5 microns. The choice of the average roughness value depends essentially on the surface hardness of the pipe to be picked up. Thus, in the case of a soft surface of the pipe, as is the case, for example, with sheathed brake lines, a larger average roughness value of up to 10 μm must be selected. For harder surfaces Oberflä, for example, in extremely hard plastics of the sheath of a pipe or metallic surfaces, a Mittenhohwert of for example 1 micron be sufficient to achieve a tight fit of the tube in the receiving channel.

It is also an embodiment of the entire area of the depressions 52 to 61 and the groove sections 52 to 71 provided with a continuous central groove depth. In this case, the recording grooves 3 . 4 provided with a surface roughness with an arithmetic mean roughness Ra of, for example, 7.5 microns, so that a secure hold of a sheathed pipe is securely ensured in the clamped state.

Next shows 12 an enlarged section XII 8th and provides such a "step" of the clamping channel or the receiving groove 4 by way of example. The step S between the depression 59 and the depression 60 is in the present embodiment 0.035 mm and is therefore extremely low for clamping a tube, in particular a coated brake line with a diameter of 5.25 mm. Due to this extremely low gradation, however, it is achieved that the surface of a coated tube is deformed only extremely minimally when clamping, so that the casing of the tube can not be damaged during clamping. At the same time an extremely large hold of the clamped tube is achieved by this multiple, axial grading with their successive recesses and groove portions of the clamping channel, after relaxing again due to the shape of these recesses and groove sections no unacceptable, permanent deformation of both the surface of a coating and of the metallic core of the pipe can occur.

13 shows a further example of a cross-sectional shape according to the invention using the example of the receiving groove 4 , How out 13 it can be seen has the inner wall 78 the receiving groove 4 a kind of circumferential wave structure. This can be produced for example by a sequential arrangement of groove sections in the circumferential direction, which cylinder sections 79 . 80 . 81 . 82 and 83 form as exemplified 13 it can be seen whose radii of curvature R1, R2, R3, R4, R5 are smaller than the total diameter D of the receiving groove 4 ,

This results in the circumferential direction successively more depressions, which in the present embodiment with respect to a common inscribed circle 84 have a maximum depth T4 of 0.05 to 0.15 mm. Also by this surface structure of the receiving groove 7 an improved grip of a clamped tube, in particular a coated or coated tube is achieved, wherein the surface is not unduly deformed due to the minimum depth T4 during clamping.

Also for this cross-sectional shape according to the 13 it is provided that the front end region of the clamping channel corresponding to the wells 52 and 57 out 8th , with its depressions 72 and 73 is also cylindrical. Also the surfaces of the cylinder sections 79 to 83 may be provided with a surface roughness having an arithmetic mean roughness Ra of between 1 and 10 μm in order to further improve the grip of a clamped pipe.

From the 14 and 14a is another variant of an insertion limit for the pipe 90 serving stop removable. In this embodiment, the second jaw 2 on her front page 44 two internal threads 152 on which above and below the sink 39 are arranged approximately centrally. This front page 44 is a guide plate 153 assigned, which back, to the jaw 2 out with a guide groove 154 is provided. This guide plate 153 is about two mounting screws 155 on the front side 44 the jaw 2 fixed mountable and has for this purpose two through holes accordingly 156 on. The height of the guide groove is 154 made larger than the height of the depression 39 the jaw 2 , so that between the guide groove 154 and the front side 44 the jaw 2 above and below the depression 39 each results in a guide gap. In this guide gap is an angled formed stop plate 157 insertable.

This between the guide plate 153 and the jaw 2 inserted state shows 14a , It can be seen that the stop plate 157 from an in 14a shown in solid lines starting position in an in Phantom lines shown end position 158 can be brought. In this end position 158 is the stop plate 157 at least before the out 14 apparent recording groove 4 , It can be seen that also by this construction, the insertion depth of the tube 90 as exemplified in 3 is shown, is limited. This is also by this construction, the axial projection of the tube 90 in the two depressions 38 and 39 the two jaws 1 and 2 definitely defines. To after retraction of the stop plate 157 the guide plate 153 For example, to not have to remove for a subsequent crimping, has the guide plate 153 to the receiving groove 4 towards a recess 159 which is dimensioned such that, for example, the Bördeldruckstück 142 out 7 through the guide plate 153 is adjustable through.

15 shows a second variant of a printing plate 100 , which are rectangular and fixed on the outside 7 the first jaw 1 can be mounted. For this purpose, the first jaw points 1 above and below the depression 51 one mounting thread each 161 on, over which the pressure plate 100 on the outside 7 the jaw 1 is fixed mountable. This is also the jaw 100 with a cylindrical centering section 111 provided with which the pressure plate 100 fitting in the recess 51 the jaw 1 can be used and thus precisely positioned. For fixed mounting of the pressure plate 100 are accordingly two mounting screws 162 provided, which through corresponding through holes 163 the printing plate 100 can be plugged through. For recessed mounting of the screw heads 164 the mounting screws 162 have the two through holes 163 corresponding depressions 165 on. For rotatable and axially immovable recording of the pressure pin 110 the adjusting spindle 99 is the print pin 110 with a circumferential receiving groove 166 Mistake.

About this recording groove 166 is the print pin 110 in the depression 109 the printing plate 100 axially fixable. For this purpose, two are transverse to the pressure plate 100 screw-in grub screws 167 provided, which in corresponding screw thread 168 the printing plate 100 are screwed, which radially to the recess 109 running in the pressure plate 100 are arranged. The two grub screws have corresponding locking pins 169 on, with which they positively in the mounted state in the circumferential receiving groove 166 of the printing pin 110 the adjusting spindle 99 intervention. As a result, an axial fixation of the pressure pin 110 in the depression 109 ensured, so that when turning back the adjusting spindle 99 from the in 5a position shown in the in 5 illustrated starting position the jaw 1 over the pressure plate 100 is withdrawn.

Instead of the with the receiving groove 166 engageable grub screws 167 can also be a continuous tan gential in the receiving groove 166 be provided engaging locking pin, which by a corresponding transverse bore of the pressure plate 100 can be plugged in and partially into the depression 109 protrudes.

Also, such a locking of the printing plate 100 in the in 4 pictured circular shape conceivable. Here, a corresponding locking pin vertically through the depression 51 be inserted through, wherein the centering 111 the printing plate 100 out 4 then correspondingly has a circumferential receiving groove, as exemplified for the printing pin 110 the adjusting spindle 99 is shown.

16 shows a sectional view of two by the two clamping screws 171 and 172 out 1a clamped jaws together 1.1 and 1.2 passing through the two centering pins 11 and 12 out 1 adjustable against each other are precisely guided. In the sectional view of 16 are only the centering pin 11 and the clamping screw 172 recognizable in dashed lines. The jaws 1.1 and 1.2 are shown in their tight end position, leaving the pipe 90 im from the two grooves 3 and 4 formed clamping channel 125 is recorded firmly. Since the two clamping jaws through the clamping screws 171 and 172 braced against each other, in this embodiment, the use of a separate clamping device 95 or a vise is not mandatory.

Next is out 16 recognizable that the clamping screw 172 with her screw head 174 in the depression 32/1 the guide hole 1.30 the jaw 1.1 is recorded. The clamping screw 172 is with her threaded shaft 172 in the internal thread 22 the second jaw 1.2 screwed. The centering pin 11 is in the injection hole 13 the second jaw 1.2 pressed in and protrudes into the fitting bore 1.17 the first jaw 1.1 into it. That in the first jaw 1.1 arranged upper end of the Zentrierzapfens 11 is with the circlip 180 out 1 Mistake. For countersunk and adjustable mounting of the centering pin 11 with his circlip 180 has the fitting hole 1.17 outside a depression 184 due to their limited depth in cooperation with the circlip 180 the maximum distance between the two jaws 1.1 and 1.2 from each other with dissolved clamping screw 172 is defined. Also is off 16 seen that even the two jaws 171 and 1.2 with frontal depressions 38 and 39 we are seeing how tour to the jaws 1 and 2 out 1 described. In the area of these depressions 38 . 39 is also the swing wall 40 intended.

The two jaws 1.1 and 1.2 form in the 16 illustrated strained state a unit with which the pressing device 130/1 engaged. This press device off 16 also has a support plate 131/1 with two U-thighs 134 . 135 as well as two engagement strips 136 and 137 on, with which the pressing device 130/1 with the engagement grooves 9 . 10 the two jaws 1.1 . 1.2 in the clamped state is stationary engaged. The support wall 131/1 is with an internal thread 179 provided, in which a threaded bush 178 is screwed interchangeable. This threaded bush 178 has a through thread 132/1 on, through which the Presschraube 141 is screwed through. Also in 16 shown pressing screw 141 is with the crimping pressure piece 142 provided, which over the grub screws 146 about his safety groove 145 on the compression screw 141 is secured rotatably and captively. Also in 16 is an example of the end of a crimping, as already to 7 described, shown, so that here also the already formed bead head 147 at the end of the pipe 90 is recognizable. Again, the special design of the jaws 1.1 . 1.2 with their engagement grooves 9 . 10 and the pressing device 130/1 with their engagement strips 136 . 137 a precise alignment of the pressing device with the longitudinal central axis 133 its passage thread 132/1 on the longitudinal central axis 140 the through the grooves 3 . 4 formed clamping channel 125 ensured.

The here provided threaded bushing 178 has the advantage that at an increased wear of the passage thread 132/1 not the supporting wall with its U-legs 134 . 135 must be replaced, but only the threaded bushing 178 , which reduces the maintenance costs. In addition, threaded bushes of different dimensions and design can be used with different pressing devices, so that different transformations of the pipe end of the clamped pipe 90 are feasible.

The two over the clamping screws 171 and 172 clamped jaws together 1.1 and 1.2 form a clamping unit with extremely small dimensions, which in the simplest way with the pressing device 130/1 can be coupled. Thus, this embodiment of the device according fiction, optimal for non-stationary use, for example, on a vehicle, a hydraulic system or the like. Suited. For this purpose, for example, on the jaw 1.2 also a handle 150/1 be provided. This handle 150/1 has a threaded pin 151/1 on, with which the handle 150/1 fixed and interchangeable in a corresponding internal thread 152/1 the second jaw 1.2 is screwed.

Based the described embodiments It is clear that with the device according to the invention, a device to disposal is made, which extremely variable can be used and to a variety of conditions is customizable. In particular, with the device according to the invention a tube can be securely clamped and thus also reliably deformed.

Claims (33)

Device for holding a pipe ( 90 ), consisting of a first and a second jaw ( 1 . 2 . 1.1 . 1.2 ), which for clamping the tube ( 90 ) each have a receiving groove ( 3 . 4 ) and which for clamping support of the tube ( 90 ) by means of a tensioning device ( 95 . 171 . 172 ) are braced against each other and which at the end of the grooves ( 3 . 4 ) formed clamping channel ( 125 ) a pressing device ( 130 . 130/1 ) is assigned, by which the from the clamping channel ( 125 ) outstanding tube end is deformable, characterized in that the clamping jaws ( 1 . 2 . 1.1 . 1.2 ) and the tensioning device ( 95 . 171 . 172 ) with the recorded tube ( 90 ) form a separate unit and that the pressing device ( 130 . 130/1 ) via coupling elements ( 136 . 137 ) Is detachably attachable to this unit. Device according to claim 1, characterized in that the clamping jaws ( 1 . 2 . 1.1 . 1.2 ) for coupling with the pressing device ( 130 . 130/1 ) on the outside with transverse to the clamping channel ( 125 ) extending engagement grooves ( 9 . 10 ) and that the pressing device ( 130 . 130/1 ) with engaging strips ( 136 . 137 ), over which the pressing device ( 130 . 130/1 ) with the engagement grooves ( 9 . 10 ) of the jaws ( 1 . 2 . 1.1 . 1.2 ) is engageable. Device according to claim 1 or 2, characterized in that the clamping jaws ( 1 . 2 . 1.1 . 1.2 ) with their grooves ( 3 . 4 ) via centering pins ( 11 . 12 ) are precisely aligned with each other. Device according to claim 1, 2 or 3, characterized in that the clamping jaws ( 1 . 2 . 1.1 . 1.2 ) can be brought from a non-clamping initial position in a clamping end position and that the jaws ( 1 . 2 . 1.1 . 1.2 ) in their initial position by between the jaws ( 1 . 2 . 1.1 . 1.2 ) arranged axial compression springs ( 33 ) are held. Apparatus according to claim 4, characterized ge indicates that the starting position of the jaws ( 1 . 2 . 1.1 . 1.2 ) by a stop ( 27 . 28 . 180 . 181 ) is defined. Apparatus according to claim 5, characterized in that the stop by retaining rings ( 180 . 181 ) which is detachably attached to the centering pins ( 11 . 12 ) are arranged. Apparatus according to claim 5, characterized in that the stop by two guide screws ( 19 . 20 ) formed by through-holes ( 29 . 30 ) of the first jaw ( 1 ) and with a defined screwing into internal thread ( 21 . 22 ) of the second jaw ( 2 ) are screwed. Device according to claim 7, characterized in that the guide screws ( 19 . 20 ) with their screw heads ( 27 . 28 ) in depressions ( 31 . 32 ) of the through holes ( 29 . 30 ) and that the depressions ( 31 . 32 ) have a depth chosen such that the screw heads ( 27 . 28 ) in the tensioned end position of the jaws ( 1 . 2 ) in the depressions ( 31 . 32 ) are sunk. Apparatus according to claim 7 or 8, characterized in that the guide screws ( 19 . 20 ) with management shafts ( 26 . 26 ), on which the first jaw ( 1 ) with their through holes ( 29 . 30 ) is guided adjustable with little play. Device according to one of claims 1 to 9, characterized in that the tensioning device ( 95 ) from a base plate ( 96 ), a supporting wall ( 97 ) and a pressing wall ( 98 ) and that the supporting wall ( 97 ) a centering pin ( 112 ) and that the second jaw ( 2 ) on its receiving groove ( 4 ) opposite outer side ( 8th ) a center hole ( 114 ), with which the second jaw ( 2 ) fitting on the centering pin ( 112 ) can be plugged. Apparatus according to claim 10, characterized in that the second jaw ( 2 ) with the supporting wall ( 97 ) is screwed replaceable. Apparatus according to claim 10 or 11, characterized in that the pressing wall ( 98 ) is formed as a separate part and parallel to the supporting wall ( 97 ) running with the base plate ( 96 ) of the tensioning device ( 95 ) is screwed. Apparatus according to claim 12, characterized in that for the precise positioning of the press wall ( 98 ) on the base plate ( 96 ) of the tensioning device ( 95 ) two in the base plate ( 96 ) pressed-in dowel pins ( 101 ) are provided, on which the press wall ( 98 ) with two fitting holes ( 103 ) can be placed. Device according to one of claims 10 to 13, characterized in that the pressing wall ( 98 ) of the tensioning device ( 95 ) with an adjusting spindle ( 99 ), through which the first jaw ( 1 ) against the second jaw ( 2 ) is clamped. Apparatus according to claim 14, characterized in that between the adjusting spindle ( 99 ) and the first jaw ( 1 ) a pressure piece ( 100 ) is provided, which rotatably on the adjusting spindle ( 99 ) is stored. Device according to one of claims 2 to 15, characterized in that the pressing device ( 130 . 130/1 ) in the mounted state on the jaws ( 1 . 2 . 1.1 . 1.2 ) transversely to the clamping channel ( 125 ) extending support plate ( 131 . 131/1 ), which with two parallel to the clamping channel ( 125 ) extending U-legs ( 134 . 135 ), at the free to the jaws ( 1 . 2 . 1.1 . 1.2 ) directed end the engagement strips ( 136 . 137 ) are arranged. Apparatus according to claim 16, characterized in that the support plate ( 131 . 131/1 ) with a central passage thread ( 132 . 132/1 ), through which a compression screw ( 141 ) is screwed through. Apparatus according to claim 17, characterized in that the compression screw ( 141 ) with an exchangeable flanging pressure piece ( 142 ) provided on the jaws ( 1 . 2 . 1.1 . 1.2 ) end of the compression screw ( 141 ) is rotatably mounted. Device according to claim 18, characterized in that the clamping jaws ( 1 . 2 . 1.1 . 1.2 ) in the vicinity of their grooves ( 3 . 4 ) to the crimping pressure piece ( 142 ) with depressions ( 38 . 39 ) and that the second jaw ( 2 . 1.2 ) with a variable in front of the depressions ( 38 . 39 ) bringable stop ( 40 . 157 ), which for determining the length of the out of the clamping channel ( 125 ) protruding pipe ( 90 ) forms an insertion limit. Device according to claim 1, characterized in that the receiving grooves ( 3 . 4 ) of the jaws ( 1 . 2 . 1.1 . 1.2 ) for the clamping support of the tube ( 90 ) have a profiled surface. Apparatus according to claim 19, characterized in that the surfaces of the receiving channel forming the clamping channel ( 3 . 4 ) with in Um catching direction in succession by circumferentially successive cylinder sections ( 79 . 80 . 81 . 82 . 83 ) of the receiving grooves formed recesses, which alternately have the same or different radii of curvature (R1, R2, R3, R4, R5) and form a kind of wave profile. Apparatus according to claim 20, characterized in that the surfaces of the clamping channel forming grooves with axially one behind the other recesses ( 52 . 53 . 54 . 55 . 56 . 57 . 58 . 59 . 60 . 61 ), between which axially successive groove sections ( 62 . 63 . 64 . 65 . 66 . 67 . 68 . 69 . 70 . 71 ) are arranged lower groove depth and that the groove width (B2, B3) serving for clamping holder recesses ( 52 . 53 . 54 . 55 . 56 . 57 . 58 . 59 . 60 . 61 ) and groove sections ( 62 . 63 . 64 . 65 . 66 . 67 . 68 . 69 . 70 . 71 ) is constant and corresponds to the outer diameter of the male pipe. Apparatus according to claim 21, characterized in that two different groove depths of the recesses ( 53 . 54 . 55 . 56 . 58 . 59 . 60 . 61 ) and the groove sections ( 62 . 63 . 64 . 65 . 66 . 67 . 68 . 69 . 70 . 71 ) are provided and that the groove sections ( 62 . 63 . 64 . 65 . 66 ) lesser depth of the receiving groove of the first jaw groove sections ( 67 . 68 . 69 . 70 . 71 ) lesser depth of the receiving groove of the second jaw are paired. Apparatus according to claim 22, characterized that the difference of the sum of the groove depths (T2, T3) of the grooves in a range of 0.01 and 0.15 mm, and preferably 0.07 mm is. Device according to claim 21, 22 or 23, characterized in that the depressions ( 52 . 53 . 54 . 55 . 56 . 57 . 58 . 59 . 60 . 61 ) and the groove sections ( 62 . 63 . 64 . 65 . 66 . 67 . 68 . 69 . 70 . 71 ) have an axial length of about 4 to 11 mm. Device according to claims 20 to 24, characterized that the radial and axial depressions according to the preceding claims 20 to 24 are provided in various combinations. Device according to one of claims 19 to 25, characterized in that the surfaces of the clamping channel forming grooves ( 3 . 4 ) have an arithmetic mean roughness Ra of 1 to 10.0 μm. Device according to one of claims 1 to 26, characterized in that the receiving groove ( 3 ) of the first jaw ( 1 . 1.1 ) and the receiving groove ( 4 ) of the second jaw ( 2 . 1.2 ) have the same basic depth. Device according to one of claims 1 to 28, characterized in that from the receiving grooves ( 3 . 4 ) formed clamping channel ( 125 ) has a clamping length for receiving the tube of 6 to 10 cm. Device according to one of claims 1 to 29, characterized in that the tensioning device ( 95 ) or one of the jaws ( 1 . 2 ) with a handle ( 150 ) are provided. Device according to one of claims 1 to 9, characterized in that the clamping device by both sides of the receiving grooves ( 3 . 4 ) arranged clamping screws ( 178 . 179 ) is formed, through which the jaws ( 1 . 2 . 1.1 . 1.2 ) are braced against each other. Device according to claim 17, characterized in that the central through-thread ( 132/1 ) of the support plate ( 131/1 ) Part of a threaded bushing ( 178 ) which is interchangeable with an internal thread ( 179 ) of the support plate ( 131/1 ) is screwed. Apparatus according to claim 19, characterized in that the stop from a in the region of the front end faces ( 44 ) of the jaws ( 1 . 2 ), in front of the clamping channel ( 125 ) pivoting swivel wall ( 40 ) is formed or that the stop from a in the front end faces ( 44 ) of the jaws ( 1 . 2 ), in front of the clamping channel ( 125 ) sliding stop plate ( 157 ) is formed.