CN1649683A

CN1649683A - Bending machines for profiles and round tubes

Info

Publication number: CN1649683A
Application number: CNA038095440A
Authority: CN
Inventors: 瓦尔特·E·施佩特
Original assignee: Palima W Ludwig and Co
Current assignee: Palima W Ludwig and Co
Priority date: 2002-03-28
Filing date: 2003-03-24
Publication date: 2005-08-03
Also published as: EP1490186A1; DE10214275A1; US20050199033A1; WO2003082491A1; JP2005521559A

Abstract

The invention relates to a profile roller bending machine comprising receiving, delivering, and bending units for profiles and circular pipes that are to be bent. The bending head (1) of the profile bending machine essentially comprises one pair of support rolls (18), followed by one pair of rolling rolls (17), followed by at least one bending roll (14). Said bending roll (14) is arranged in a fixed manner on a rotary disk (12), the turning center of which runs parallel to the longitudinal axis of the profile (5) that is to be bent. The rotary disk is part of a coordinate table which is movable at least in two directions that are perpendicular to each other and which is adjustable according to the bending requirements for the profile.

Description

The bending machine that is used for section bar and pipe

The present invention relates to a kind of bending machine that is used for section bar and pipe as described in the preamble according to claim 1.

The bending machine that is used for curved tube is known by the content of DE 196 30 025 A1.Utilize this machinery can the two dimension (2D) and the three-dimensional (3D) scope in free bend pipe section bar.But the production capacity of this known bending machine is only limited to very low passage rate and low deformation rate, one similar device derives from DE 40 41 668 A, wherein treat that with one crooked section bar advances by a mandrel instrument and by the distortion of three bending devices, it consists essentially of be provided with in succession many to carrying roller, many to rolling roller and many to bending roll.

Each is arranged on one along three orthogonal directions (X, Y, Z direction) movably on the workbench to bending roll, but therefore is free bend.

But for treating that crooked section bar only produces a minimum passage rate, because lack the driving of each roller, in addition can only be crooked very lentamente, because whole bending roll device is arranged on one along three directions movably on the coordinate setting table,

Therefore the objective of the invention is to, further constitute a kind of bending machine that is used for section bar and pipe that starts described pattern, make it can reach remarkable higher passage rate and treat that simultaneously crooked section bar has higher deformation rate.

In order to reach the purpose of proposition, the invention is characterized in, crooked head comprises that at least a carrying roller that is provided with in succession is right, the one rolling roller that connects on its next door to at least one bending roll that is connected on its next door, wherein bending roll is fixedly mounted on the rotating disk, it changes heart and is parallel to the longitudinal axis for the treatment of crooked section bar and is arranged on from one spacing place, and rotating disk itself is one at least along two orthogonal directions parts of coordinate setting table movably.

Therefore the significant advantage of utilizing described technical scheme to obtain is, replace now a plurality of bending rolls (for example as much is to bending roll) only to need a bending roll of installing on the rotating disk that a rotation drives, wherein this rotating disk is again one at least along Y and the Z direction parts of coordinate setting table movably.

The so-called coordinate setting table heart therein has a passage, and a channelled rotating disk is set in its zone equally.Passage in the rotating disk is by treating that crooked section bar is essential.

Coordinate setting table itself then comprises two mobile flat boards that can meet at right angles mutually in a plane, thereby it is that send to by opening and treat the shift position of crooked section bar according to one or another coordinate flat board, by the bending roll that is provided with on it to the left or to the right, downward or upward on demand, or even in progradation, being out of shape by its combinations of directions, thereby for example in the shape bending process, produce one spiral-shaped.Can certainly become all possible other shape by original straight shape bending, for example with the bending of identical and/or different radiuses.

Though by DE 196 30 025 A1 are also known a bending roll can be fixed on the rotating disk that a rotation drives with moving radially, the shortcoming that exists in this known devices is, only so that low speed and low deformation rate to be arranged.Therefore slim material that here can only crooked little cross section because bending roll move radially driving, it must be fixed on the rotating disk that rotation drives, and has brought very big problem.

This improves moving-mass total when crooked, thereby just reaches very low passage rate only.

Particularly the radial feed motion can only utilize less power, because the drive unit of corresponding configuration is incorporated in the rotating disk only difficultly, for example utilize known bending apparatus pipe can not be curved helix, because the radial drive that the rotation of rotating disk drives in conjunction with bending roll only reaches maximum 360 ° in a direction

In this respect according to the present invention regulation, on a rotating disk, fix now one radially irremovable, that is therefore fixing bending roll, but rotating disk itself is arranged on along on the removable and lockable coordinate flat board of Z direction with its gantry post.

But one radially the bending roll of feeding replace by a fixing bending roll now according to the present invention, it is installed in one along on the rotating coordinate flat board of Z direction.

But in addition the present invention also stipulates, can for this bending roll configuration also along the additional moving movement of Y direction.When the free bend of section bar, can reach the much bigger free degree whereby.Now people can use the bending force of any requirement, and this can not reduce the existing curved space, move radially drive unit because no longer need to be provided with a bending roll in the scope of rotating disk.

Therefore described drive unit is arranged on the periphery of crooked head and realizes with the form of coordinate flat board.

Therefore pass through the corresponding mobile of each coordinate flat board of configuration, driving bending roll can move freely in the Y-Z plane, and this is impossible in the prior art.

In such a way because better control in the Y-Z plane, thereby accurate significantly more now moving movement is possible and can reaches the rate of bending of significantly more increasing.

Can produce one one-tenth multispiral section bar in addition, this is impossible in above-mentioned DE 196 30 025 A1.

With above-mentioned irrelevant and as independently summary of the invention the present invention also will be based on other opinion, that is, when fair speed, according to the present invention, the higher deformation rate of section bar also is possible.

The present invention regulation in this respect, at least one of the rolling roller that the rolling roller that is provided with is right constitute in its motion can be to treating crooked section bar feeding, thereby can make the rolling roller treat to apply a rolling power on the crooked section bar according to the present invention.

Therefore at least one the rolling roller for set rolling roller centering disposes a centripetal force, its assurance rolling roller is treated crooked section bar with corresponding high pressure rolling, and therefore causes a kind of rheology process (Flie β proze β) so that it then can be accurately crooked by the bending roll appropriateness.Significantly be reduced in the power that requires on the bending roll owing to the rheology process that causes.Similarly can significantly improve the passage rate for the treatment of crooked section bar.

Might reach the deformation rate that when using traditional bending techniques, can not reach by rolling and the rheology process that causes thus.That is to say, cross dimensions or diameter and treat that the ratio of the inside radius of crooked section bar whereby can also be littler, and do not have crackle to form or the danger of its downsizing.

Set, by rolling and the rheology process that causes thus, cross dimensions or diameter are possible with the ratio from 1.5 to 1 to 1 to 1 of the inside radius of the section bar for the treatment of bending for this reason.

Carry out the rolling process along the sweep for the treatment of crooked section bar exactly, that is along the track that changes by the BENDING PROCESS generating material.Can be by the rheology process that causes with carrying out bending than bending force less in traditional method.

Another advantage is, improves crooked precision by reduce springback capacity greatly in treating crooked section bar.By being that the rheology process that causes has avoided forming crackle to the full extent by rolling roller people in structure.That is to say the drawing process of in this bending method, having cancelled in traditional shape bending.This physical process in section bar to be formed is compared with traditional bending method can have significantly higher deformation velocity.

In addition, the advantage of this method is, can reach curved shape arbitrarily in an independent BENDING PROCESS.And in the bending method of traditional 3-4 roller, for a curved shape that completes of making section bar needs a plurality of BENDING PROCESS.And use bending method of the present invention to reach significantly higher productivity ratio.The better material uniformity of crooked section bar is treated in this generation, and the surface of section bar is processed more in good condition basically, and therefore cancellation is handled again, for example be used to spray paint or multiple preparation such as alumilite process processing,

Therefore in high handling capacity, also can reach the high deformation rate for the treatment of crooked section bar.

Be also pointed out that in addition the present invention is not limited to the bending of pipe, but can be out of shape all that open wide and hollow profiles sealing.

Though it is known in treating crooked section bar rolling (seeing DE 197 33 932 A1) being set in two dimensional range.But wherein relate to along the core of predetermined bending die and extend BENDING PROCESS.

But in described open source literature bending roll or bending roll in BENDING PROCESS with mode selected from the commentaries on classics heart of rolling roller away from.This bending for chivalrous narrow radius is undesirable and is disadvantageous when the curvature of space of section bar particularly.

Therefore bending roll should as far as possible only be arranged on the right next door of rolling roller and still allow corresponding curvature of space with very little spacing.

In this respect according to the present invention regulation, just the bending roll rigidity is installed on the rotating disk and is working in to same plane as the rolling roller, but its with interval being arranged.Therefore between the rolling roll surface of the bending roll plane of effect and effect, there is not spacing, as described in this former DE 197 33 932.This situation reaches by the reduction of resistance in the material to be out of shape, and the reduction of this resistance is because due to the rheology process for the treatment of to produce in the rolling plane in the perimeter of crooked section bar.

Therefore the invention has the advantages that also can rotate greater than 360 ° or its several times according to rotating disk of the present invention, this is impossible in prior art (DE 196 30 025 A1).Owing in rotation drives, saved the radial feed motion, therefore can realize rotating significantly faster of rotating disk according to the present invention.That is relate to the rotation that is issued to high power with very little quality in high handling capacity.Therefore can implement to treat the motion of axial advance fast of crooked section bar, this is impossible in the prior art.

Therefore importantly, an adjustment of bending roll equally fast can realize the feed motion with respect to the angled requirement of the longitudinal axis for the treatment of crooked section bar, and can realize simple whereby and control fast.

Problem in the bending is the inertia that for example overcomes the quality of motion fast.According to the quality of the unique motion of the present invention is the drive unit of rotating disk and the coordinate flat board that upwards is provided with away from bending roll.Therefore can be in the shortest time by the conversion bending direction that rotatablely moves of rotating disk, this is for being impossible by the large-scale and heavy drive unit of prior art on a rotating disk.Therefore the fluid pressure drive device that adopts the electromechanical drive unit according to the present invention for different motions and need not be in the past is because the electromechanical drive unit can be worked significantly quickly and accurately be controlled.

Summary of the invention of the present invention not only is made of the theme of each claim, and by each claim constituting to each other.

Whole disclosed data and feature in comprising the file of summary, the particularly design of the stereochemical structure shown in the accompanying drawing, as the important claimed object of the present invention, up to the present it all is new with respect to prior art alone or in combination.

Below by illustrating in greater detail the present invention, wherein by accompanying drawing and describe the important feature and advantage of the present invention can learn other by the accompanying drawing shown in a plurality of embodiments.Wherein

Fig. 1: according to the oblique vertical view of the signal of bending machine of the present invention;

Fig. 2: remove bending machine behind the protective cover according to Fig. 1;

Fig. 3: according to the side view of the device of Fig. 2;

Fig. 4: according to crooked the enlarged side view of Fig. 3;

Fig. 5: with respect to the view of Fig. 4 half-twist;

Fig. 6: schematic diagram with adjustment of the rolling roller by eccentric feed arrangement;

Fig. 7: another device that passes through that is different from Fig. 4 revolves the embodiment that adds rolling power;

Fig. 8: according to the explanation of the principle of Fig. 7.

One bending machine that is used for section bar and pipe totally is shown among Fig. 1, and it comprises one crooked 1, and it is fixedly connected on the bridge shape frame 2, fixes the guide rail 6 that row's each interval is arranged on this bridge shape frame.One core bar station 3 wherein is set in order to supporting a core bar 21 at the rear portion of bridge shape frame 2, and has one and advance slide plate 4, borrow it will treat that crooked section bar 5 advances in crooked 1.

Propelling for a section bar has two kinds of possibilities in this respect, or rotation drives one or more pairs of rollers in crooked head, thereby it rotatablely moves by it and carries section bar along the longitudinal direction, or these rollers only will treat that to non-rotatably driving crooked section bar pushed away crooked 1 by advancing slide plate 4 in another form of implementation.

Also illustrate among Fig. 1, crooked 1 by a cover 7 protecting covers

Can find out crooked 1 other details in conjunction with Fig. 2.

At substrate 8 a vertical batten 9 being set, is that a coordinate flat board 10 is provided with one and moves driving along first of Z direction on it.

Here realize to move and drive by the drive unit 16 of coordinate flat board 10.

Another is set along the drivable coordinate flat board 11 of Y direction on this coordinate flat board 10, wherein this driving is realized by drive unit 26.The latter is fixed on the coordinate flat board 10.Therefore two coordinate

flat boards

10,11 are predefined in the right angle Y-Z coordinate system mutually.This is again with respect to the direction of propulsion X of shape material 5 the to be out of shape location that meets at right angles, thereby for the common right angle X-Y-Z coordinate system that forms of the plane of reference of device of the present invention.

Support a rotating disk 12 and rotatable now on coordinate flat board 11 in parallelly, it is driven by a drive unit 13 rotations by a driving-belt, this drive unit 13 is fixed on the coordinate flat board 11, and a support 15 is connected on the rotating disk 12, fixes a bending roll 14 on support 15.

Can learn crooked 1 other details by Fig. 3 and 4.

By seeing among Fig. 4, core bar 21 passes treats crooked section bar and a mandrel instrument 22 is set that its promotion by the core bar station always remains in the bending area in the inner chamber of section bar 5 in bending area.

Bending apparatus mainly comprise one the carrying roller that advances the slide plate side to 18, one along bending direction at its rolling roller that is provided with previously to 17 with at least one is at its bending roll that is provided with previously 14.

Be noted that roller to the 17, the 18th, be provided with in pairs, but also can be arranged to two pairs or how right respectively, thereby they can be around treating crooked 5 one-tenth starlike settings of section bar on circumference.For simplicity, in the following description only from the roller that is positioned at a plane to 17,18, although it is right a plurality of such rollers to be set in different planes.

This equally also is applicable to bending roll 14 in addition, the single bending roll setting of its conduct, in another structure of the present invention, can stipulate, for shown in bending roll 14 dispose another bending roll over there or also want many bending rolls that on the circumference for the treatment of crooked section bar 5, distributes even.

In Fig. 4 importantly, now can for the rolling roller to 17, but also 18 configurations are affacted the corresponding centripetal force for the treatment of on the crooked section bar 5 in an illustrated embodiment for carrying roller.The present invention stipulates in its simple embodiment, only disposes a corresponding centripetal force to 17 by a corresponding feed drive unit 19 for the rolling roller.

In a form of implementation that enlarges, as shown in Figure 4, also be that carrying roller disposes a corresponding centripetal force to 18 by another feed drive unit 20 in addition.

This is achieved in that promptly, by a fixing down in working order moving guide rail 32 carriage 27 is installed on vertical batten 9.Therefore can make carriage 27 by moving guide rail 32 feedings, with adjust roller to 17,18 and section bar 5 between spacing.Be fixed then.

Feed drive unit

19,20 is set on carriage 27 now, and referring to Fig. 3, it affacts on the corresponding separately end free to rotate of

lever

33,36 of configuration.This special lever principle also will illustrate in greater detail by Fig. 6.

In a word importantly, each

feed drive unit

19,20 affacts on the corresponding point of

force application

34,35 on the free end of each

lever

33,36 and lever respectively supports a

roller

17,18 with rotating shaft 37,48 respectively.

According to Fig. 6, each

lever

33,36 usefulness one eccentric shaft bearing 40 is bearing on the wall of carriage 27 then, and each gantry post 37,38 is installed in respectively on the end free to rotate of

lever

33,36 simultaneously.

Therefore apply a rotational motion along the direction of arrow 47 by feed drive unit by Fig. 6, thus lever rotates in its bearing 40 and owing to the

eccentric support roller

17,18 of rotating shaft 37,48 along the direction of arrow 49 to the direction feeding of section bar with withdraw from.

Can be found out also that by Fig. 4 the coordinate flat board 10 that disposes for the Z direction is bearing on the batten 9 in a straight line guide rail 24 movably, drive unit 16 is used for this and moves.

Drive unit 16 comprises a pinion, and it is meshed with a corresponding tooth bar, and tooth bar is the parts of line slideway 24.

Realize the mobile guide along the Y direction of coordinate flat board 11 here by the guide rail of along continuous straight runs location, this guide rail consists essentially of a plurality of deflector rolls that are set up in parallel spaced apart parallel, and they roll on the corresponding spigot surface of mutual each guide rail 50 opposed and that be arranged in the both sides space.

Wherein drive unit 26 affacts on the coordinate flat board 11 by pinion and tooth bar.

Deflector roll 25 is fixed on the coordinate flat board 10, and guide rail 50 is fixed on the coordinate flat board 11.

The present fixing rotating driving device 13 of rotating disk 12 also on coordinate flat board 11.Therefore its gantry post is installed in the coordinate flat board 11, and treats that crooked section bar passes rotating disk 12, and wherein bending roll 14 affacts from a side at least and treats on the crooked section bar, and this bending roll 14 is supported in the support 15 and rotatable.

Support 15 fixedly secures on rotating disk 12.This external support 27 also illustrates a feed drive unit along directions X.Here, at first carriage 27 is fixedly connected on the batten 9 by flange connector 28.

Along the longitudinal direction for the treatment of crooked section bar two carriages 27 that be parallel to each other and that be arranged in the both sides space (only illustrating among Fig. 4) are set, it is interconnected by a common base plate 29 below.In this base plate 29, embed a blade fin 30 now, be its configuration one feed drive unit of controlling oneself 31.

Rolling roller and upper supporting

roller

17,18 are gone up in blade fin 30 supportings.Therefore make them can be along directions X (treating the longitudinal direction of crooked section bar) with respect to bending roll 14 feedings.

Therefore in the diagram of Figure 4 and 5, have with respect to

top roll

17,18 nonadjustable passive

lower rolls

17,18 initiatively, wherein to be designed to not only along it be adjustable to the feed motion of section bar but also along the direction of the longitudinal axis of section bar to

top roll

17,18.

But it is adjustable that

lower roll

17,18 also can be designed to along the longitudinal direction of section bar in of the present invention one further constitutes equally, always provides these rollers thus to 17,18 pairing opposed and that vertically aim at mutually.

Be used for the rolling roller on produce rolling power or be used for carrying roller on produce the adjustment principle of supporting force, in Fig. 6, utilized the eccentric wheel of describing there 39 just to illustrate.

When eccentric wheel 39 rotatably is fixed on the guiding trestle 30 in its eccentric shaft bearing 40, the

feed drive unit

19,20 that disposes rotatably is fixed on each carriage 27 that is arranged in parallel.This is by the little turning point tubeization ground expression among Fig. 4.

Carrying roller and rolling

roller

17,18 are supported on respectively in the bearing shaft 38, and the latter can be rotated to support on the corresponding

lever

33,36,

In by the embodiment that is different from Figure 4 and 5 of Fig. 7, adopt another feeding principle.

One " passive " bottom bracket 41 is set in order to supporting

lower roll

17,18 and the carriage 42 of an active drive is set on its opposite here.This carriage 42 is bearing on the batten 9 in a moving guide rail 32 with cylinder 43 movably by a piston cylinder apparatus, and wherein the piston rod of cylinder 43 acts on the bearing 44 by a plate 46, and the rotating shaft 37,38 of

roller

17,18 is installed on it.

This feeding principle simplification is shown among Fig. 8.As can be seen, rotating shaft 48 fixedly secures on an end of bearing 44, and the other end of bearing formation is rotating along the direction of arrow 47.

Therefore rotating shaft 48 is fixedly connected on the carriage.Therefore bearing 44 constitutes around this axle 48 is rotating.

The rolling roller is installed thus to 17 rotating shaft 37 in the end free to rotate of bearing, therefore since the power effect of feed arrangement (cylinder 43 and supporting 45) can make rolling roller 17 along the direction of arrow 47 with big power to the section bar feeding for the treatment of bending.

That is to say, not only by the device of pressing Fig. 6 but also the device that passes through to press Fig. 8, because the bigger lever force of effect can treat to apply king-sized rolling power on the crooked section bar by last rolling roller 17.

Always should also be noted that and carry out bending that this can or can realize that also the latter is with illustrating around the rolling roller of side setting angled with it around last rolling roller or following rolling roller 17 according to bending direction around the rolling roller.

Like this, also corresponding supporting force is applied to carrying roller on 18 by described feed drive unit, this moment, condition was, mandrel instrument 22 also is located at carrying roller to 18 following with in the interior zone, so that also can realize a supporting accordingly internally by section bar here.

List of numerals

1 crooked 26 drive unit (Y)

Bridge 2 shape frame 27 carriages

3 core bar stations, 28 flange connectors

4 advance slide plate 29 base plates

5 section bars, 30 blade fins

6 guide rails, 31 feed drive units

7 protective covers, 32 moving guide rails

8 substrates, 33 levers

9 battens, 34 points of force application

10 coordinate flat boards (Z direction), 35 points of force application

11 coordinate flat boards (Y direction), 36 levers

37 rotating shafts of 12 rotating disks

13 drive units, 38 bearing shaft

14 bending rolls, 39 eccentric wheels

15 supports (14 usefulness), 40 eccentric shaft bearings

16 drive units (10 usefulness), 41 carriages

17 rolling rollers are to 42 carriages

18 carrying rollers are to 43 cylinders

19 feed drive units, 44 bearings

45 supportings of 20 feed drive units

21 core bars, 46 plates

22 mandrel instruments, 47 directions of arrow

48 rotating shafts of 23 driving-belts

24 line slideways, 49 directions of arrow

25 deflector rolls, 50 guide rails

Claims

(according to the modification of the 19th of treaty)

1. bending machine, in order to section bar and pipe are carried out two dimension and/or three-dimensional bending, it mainly comprises one by carrying roller, be connected on the structure that the rolling roller of back and bending roll that at least one is connected on the back are again formed, be used for respect to transport axis (X-direction) curved tube, wherein, each roller group that comprises rolling roller and carrying roller is to treat that crooked section bar (5) constitutes roughly one at the guide channel that is radially defined by these roller groups, pipe passes this guide channel when bending, and, described at least one bending roll is arranged on the rotating disk (12), rotating disk is rotatably supported in the coordinate flat board (10 that can move along the Y-Z-direction, 11) above one in, it is characterized in that, only be provided with a unique bending roll (14).

2. according to the described bending machine of claim 1, it is characterized in that described bending roll (14) is furnished with a rotating driving device.

3. according to claim 1 or 2 described bending machines, it is characterized in that coordinate setting table comprises that two become vertical angle relatively-movable coordinate flat board (10,11) in a plane.

4. according to claim 1,2 or 3 described bending machines, it is characterized in that coordinate flat board (10,11) can move by means of mobile drive deivce (16,26).

5. according to one of claim 1 to 4 described bending machine, it is characterized in that the rolling roller can or withdraw to the direction feeding of section bar (5) by means of feed drive unit (19,20) (18) (17) and/or carrying roller.

6. according to one of claim 1 to 5 described bending machine, it is characterized in that the rolling roller can or withdraw to the direction feeding of bending roll (14) (18) (17) and/or carrying roller.

7. according to one of claim 1 to 6 described bending machine, it is characterized in that having only the rolling roller can or withdraw to the direction feeding of bending roll (14) (18) to the top roll of (17) or lower roll and/or carrying roller.

8. according to one of claim 1 to 7 described bending machine, it is characterized in that, the rolling roller to and/or carrying roller to the feeding of (17,18) or withdraw from by a moving guide rail (32) of a carriage (27) and realize by means of feed drive unit (19,20), described drive unit affacts on each corresponding end free to rotate of the lever (33,36) that is disposed.

9. according to one of claim 1 to 8 described bending machine, it is characterized in that, each lever (33,36) is bearing on the wall of carriage (27) with an eccentric shaft bearing (40), and each gantry post (37,48) is installed in respectively on the end free to rotate of lever (33,36) simultaneously.

10. according to one of claim 1 to 9 described bending machine, it is characterized in that, roller to the feeding of (17,18) by one be used to support the passive bottom bracket (41) of lower roll (17,18) and over there the bottom bracket of an active drive (42) realize.

11., it is characterized in that the bottom bracket (41) that is used to support lower roll (17,18) also is an active drive according to the described bending machine of claim 10.

12. according to one of

claim

10 or 11 described bending machine, it is characterized in that, carriage (42) is bearing on the batten (9) by a piston cylinder apparatus in a moving guide rail (32) with cylinder (43) movably, wherein, the piston rod of cylinder (43) acts on the bearing (44) by a plate (46), and the rotating shaft (37,38) of roller (17,18) is installed on this bearing.

13., it is characterized in that rotating shaft (48) fixedly secures on an end of bearing (44), and the other end of bearing (44) is rotating along the direction of arrow (47) according to one of claim 10 to 12 described bending machine.

14., it is characterized in that one or more pairs of rollers are that rotation drives, and carry section bar (5) along the longitudinal direction thereby they rotatablely move by it according to one of claim 1 to 13 described bending machine in crooked head (1).

15. according to one of claim 1 to 14 described bending machine, it is characterized in that, treat that crooked section bar (5) advances slide plate (4) to push away crooked head (1) by one.

16. according to one of claim 1 to 15 described bending machine, it is characterized in that, a core bar station (3) be set, at the rear portion of bridge shape frame (2) in order to support a core bar (21).

17. according to one of claim 1 to 16 described bending machine, it is characterized in that, core bar (21) passes treats crooked section bar (5), and a mandrel instrument (22) is set in the inner chamber of section bar (5) in bending area, and its promotion by the core bar station always remains in the bending area.

18. according to one of claim 1 to 17 described bending machine, it is characterized in that, by rolling roller (17) in the outside of section bar outside bending area cause a rheology process.

19., it is characterized in that according to one of claim 1 to 18 described bending machine, reduce the moment of resistance of section bar by the rheology process, therefore only also need the bending force that greatly reduces for BENDING PROCESS.

20. according to one of claim 1 to 19 described bending machine, it is characterized in that, in unique once current, finish the BENDING PROCESS for the treatment of crooked section bar.

21., it is characterized in that by rolling and the rheology process that causes thus, cross dimensions or diameter are possible with the ratio from 1.5 to 1 to 1 to 1 of the inside radius of the section bar for the treatment of bending according to one of claim 1 to 20 described bending machine.

22. according to one of claim 1 to 21 described bending machine, it is characterized in that, treat that the BENDING PROCESS of crooked section bar is determined by the run-in synchronism of bending roll (14) and rolling roller (17).

Claims

1. A bending machine, comprising a device for containing, conveying and bending the profiles and round pipes to be bent, characterized in that the bending head (1) of the bending machine mainly includes at least one idler roller pair (18) arranged in succession, At least one rolling roller pair (17) connected thereto and at least one bending roller (14) connected thereto, wherein the bending roller (14) is fixedly mounted on a turntable (12), and the center of rotation of the turntable is parallel to the The longitudinal axis of the profile (5) is positioned and the turntable (12) itself is part of a coordinate table movable in at least two mutually perpendicular directions, which can be moved according to the bending requirements of the profile (5).

2. Bending machine according to claim 1, characterized in that the turntable (12) is rotatable in a circle without stop by means of a drive (13).

3. The bending machine according to claim 1 or 2, characterized in that the coordinate table comprises two coordinate plates (10, 11) which are relatively movable in a plane at a vertical angle.

4. Bending machine according to claim 1, 2 or 3, characterized in that the coordinate plates (10, 11) are movable by means of a mobile drive (16, 26).

5. Bending machine according to one of claims 1 to 4, characterized in that the pair of rolling rollers (17) and/or the pair of support rollers (18) can Feed or exit in the direction of (5).

6. Bending machine according to one of claims 1 to 5, characterized in that the rolling roller pair (17) and/or the carrier roller pair (18) can be advanced or withdrawn in the direction of the bending roller (14).

7. According to the bending machine described in one of claims 1 to 6, it is characterized in that only the upper or lower rollers of the rolling roller pair (17) and/or the support roller pair (18) can move towards the bending roller (14) to feed or exit in the direction indicated.

8. According to the described bending machine of one of claim 1 to 7, it is characterized in that, the infeed of rolling roller pair and/or support roller pair (17,18) or withdraw by a movement of a carriage (27) The guide rail (32) is realized by means of feed drives (19, 20) which act on respective respective freely rotatable ends of the associated levers (33, 36).

9. Bending machine according to one of claims 1 to 8, characterized in that each lever (33, 36) is supported on the wall of the bracket (27) with an eccentric wheel bearing (40), while each pivot Bearings (37, 48) are respectively mounted on the freely rotatable ends of the levers (33, 36).

10. Bending machine according to one of claims 1 to 9, characterized in that the roller pair (17, 18) is fed through a passive lower bracket ( 41) and a positively driven lower bracket (42) on the opposite side to realize.

11. Bending machine according to claim 10, characterized in that the lower bracket (41) for supporting the lower rollers (17, 18) is also actively driven.

12. According to one of claim 10 or 11 described bending machine, it is characterized in that, bracket (42) is movably supported in a moving rail (32) with cylinder (43) by a piston-cylinder arrangement On the bar (9), wherein the piston rod of the cylinder (43) acts on a support (44) through a plate (46), on which the rotating shafts (37, 38) of the rollers (17, 18) are installed .

13. According to the bending machine described in one of claims 10 to 12, it is characterized in that the rotating shaft (48) is firmly fixed on one end of the support (44), and the other end of the support (44) is along the direction of the arrow ( 47) is rotatable.

14. Bending machine according to one of claims 1 to 13, characterized in that one or more pairs of rollers are rotationally driven in the bending head (1), so that they convey the profile in the longitudinal direction by means of their rotational movement (5).

15. Bending machine according to one of claims 1 to 14, characterized in that the profile (5) to be bent is pushed past the bending head (1) by means of a push slide (4).

16. Bending machine according to one of claims 1 to 15, characterized in that a mandrel station (3) for supporting a mandrel (21) is arranged at the rear of the bridge (2).

17. Bending machine according to one of claims 1 to 16, characterized in that the mandrel (21) passes through the profile (5) to be bent and is arranged in the interior of the profile (5) in the bending region A mandrel tool (22) which is always held in the bending zone by the push of the mandrel station.

18. Bending machine according to one of claims 1 to 17, characterized in that a rheological process is induced on the outside of the profile in the outer bending region by rolling rollers (17).

19. Bending machine according to one of claims 1 to 18, characterized in that the moment of resistance of the profile is reduced by rheological processes, so that only significantly reduced bending forces are required for the bending process.

20. Bending machine according to one of claims 1 to 19, characterized in that the bending process of the profile to be bent is carried out in a single pass.

21. Bending machine according to one of claims 1 to 20, characterized in that the ratio of the section size or diameter to the inner radius of the profile to be bent is changed from 1.5 to 1 to 1 to 1 is possible.

22. Bending machine according to one of claims 1 to 21, characterized in that the bending process of the profile to be bent is determined by the synchronous operation of the bending roller (14) and rolling roller (17).