CN101528376B - Device and method for producing a hollow body from a workpiece in the form of a round blank - Google Patents
Device and method for producing a hollow body from a workpiece in the form of a round blank Download PDFInfo
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- CN101528376B CN101528376B CN2007800397438A CN200780039743A CN101528376B CN 101528376 B CN101528376 B CN 101528376B CN 2007800397438 A CN2007800397438 A CN 2007800397438A CN 200780039743 A CN200780039743 A CN 200780039743A CN 101528376 B CN101528376 B CN 101528376B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/24—Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/86—Making other particular articles other parts for bicycles or motorcycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a device for producing a hollow body from a workpiece (1) in the form of a round blank, comprising a shaping mandrel (11) mounted in such a way that it can be rotationally driven, a pressing element (18), which is likewise mounted on the machine bed in such a way that it rotates and can be displaced axially in relation to the shaping mandrel (11) for clamping in the workpiece (1), and comprising at least one shaping roller (31), which can be advanced axially and/or radially towards the shaping mandrel (11). In this case, it is provided that at least one shaping die (40) is arranged on the pressing element (18) and allows the shaping mandrel (11) to enter it axially in order to shape the workpiece (1), and that the shaping die (40) is axially displaceable with respect to the pressing element (18). The invention also relates to a method for producing a hollow body from a workpiece in the form of a round blank.
Description
Technical field
The present invention relates to a kind of device that is used for making hollow body by the workpiece of circle base shape; Especially press/roller press, this device have with can be round the supported shaping mandrel of the driven rotatably mode of rotation, with can be round said rotation rotation and can be with respect to said shaping mandrel vertically and/or the forming rolls of radial feed with respect to the supported clamping element of the axially movable mode of said shaping mandrel and at least one for clamping said workpiece.
In addition, the invention still further relates to a kind of method that is used for making hollow body by the workpiece of circle base shape.
Background technology
Such hollow body is such as being used as accumulator.Must withstand be used for to compress or liquid gas ratio such as CNG (compressed natural gas), LNG (liquefied natural gas) or the high pressure hydrogen of accumulator up to the stowing pressure of hundreds of bar.Said accumulator is such as in automobile, using the hydrogen supply that acts on the compressed gas cylinder of natural gas tank and be used for fuel cell.
From prior art, disclose different being used to and made the method and apparatus of accumulator.
DE 25 17 971 makes gas bomb such as the religion people by ingot blank.On press, so this ingot blank is carried out punching, thereby stay base section and be deformed into the hollow cylinder of bottom like this with a side.This hollow cylinder continued to be deformed into the gas bomb blank and then on roller press cold stretch be net shape.
DE 39 10 192 A1 propose, and will shear the container that the pipeline section that obtains is deformed into sealing through the sizing to hot worked pipe through hot forming.Produce the jumping-up lug in the inboard in bottom centre when being shaped, mechanically remove this jumping-up lug through the additional methods step in the bottom.Regulation is dwindled the wall thickness of middle cylindrical shape part through cold forming in addition.Because the diverse ways step must be implemented in different processing stations usually, so the front disclosed method equally can be cumbersome.
DE 197 11 844 B4 teach people a kind of method that is used to make accumulator in addition.In rolling depression method, correspondingly make the parts of pot shape according to this method by two round bases, the parts of wherein said pot shape are welded into accumulator subsequently.This welding meeting has a negative impact to the strength character and the corrosive nature of material.
A kind of method that is used to make the pot with cylindrical shape wall body is disclosed from DE 16 52 630 C.According to this method, at first make the edge crimp of round base become cylindrical shape and then it is stretched through roll extrusion.
Summary of the invention
Task of the present invention is, explains that the workpiece that is used for by circle base shape makes hollow body especially a kind of device and a kind of method of accumulator, utilizes the said apparatus and method can be simply and make hollow body firm especially and that seal economically.
By the present invention, this task has the device of the said characteristic of claim 1 and is resolved through a kind of method with the said characteristic of claim 5 through a kind of.Preferred embodiment obtains explanation in corresponding dependent claims.
Be characterised in that by device of the present invention; On clamping element, arranged at least one shaping die; This shaping die can move axially with respect to the shaping mandrel in order to make workpiece deformation, and said shaping die can move axially with respect to said clamping element.
The of the present invention first basic design is, on press and/or roller press, arranges to make extra shaping die workpiece to be drawn in the said die and in this process through moving axially of die and/or shaping mandrel and deform.This has realized making workpiece clamped in machine in same anchor clamps (Einspannung), in deep-draw or pressing process and in extruding and/or roll extrusion process, to be out of shape.Such as coming the columnar wall body zone and/or the neck area of the final said hollow body that is shaped through the be shaped bottom section of said hollow body and the roll extrusion through subsequently of deep-draw in said shaping die or compacting.
Other basic design of the present invention is, with said shaping die can axially movable mode being arranged on the said clamping element.This has realized that end face and the workpiece from said clamping element retracts said shaping die after deep-draw or compacting, makes this shaping die not hinder the feeding of at least one forming rolls.Especially also can proceed processing through extruding or through roll extrusion to the workpiece area of being out of shape through deep-draw or compacting in advance subsequently thus, and needn't clamp (umspannen) again to workpiece at first troublesomely.
Allow especially simply, make economically fast and thus said hollow body thus by device of the present invention.With respect to other deformation method, can save the certain methods step and handle (Bondern) such as intermediate annealing and necessary pickling that is used for de-scaling and phosphatization.
With respect to making, obviously more cheap by method of the present invention with pipe.In addition, not only can obtain as the needed flat boards of raw material, and can freely use diversified thickness of slab with less cost more.Container diameter is not limited on the pipe cross section that is provided.Except by the method for the present invention, can regulate diameter/wall thickness ratio arbitrarily.Obtain high flexibility thus.Also can freely regulate each regional wall thickness of said container.With respect to the hot forming of carrying out through forging, much little concerning investment cost by method of the present invention.Different with essential forging die, can be used for diversified workpiece by the device with high flexibility of the present invention.
Said shaping die surrounds said clamping element suitably annularly.Said shaping die advantageously have a kind of in profile, profile is along with attenuating with the increase of the axial spacing of the shaping mandrel that is shifted out in this.Said clamping element preferred arrangements is in the summit of the interior profile of said shaping die.By the desired bottom shape of said hollow body, said clamping element is such as having protrusion, recessed or smooth end face.
Said shaping die preferably can move, make its in the operating position axially outstanding surpass said clamping element towards the end face of said shaping mandrel and retracting in the position and resetting with respect to this end face axial.Suitable is that the profile of the end face of said clamping element is connected in the shaping position of said shaping die on the interior profile of said shaping die all the time.
Versatility and operating rate by device of the present invention can be improved in the following manner; Promptly the neutralization of said shaping mandrel/or clamping element in arrange drift, this drift can for implement deformation process from said shaping mandrel in other words the end face of clamping element carry out feeding.Such drift is such as the shaping that can be used for container neck.Preferred said drift can move axially, and that is to say along the direction of rotation and moves, and wherein said rotation passes the center of said drift suitably and extends.
Versatility by device of the present invention can be improved further in the following manner, promptly said shaping die have a plurality of can relative to each other axially movable die element.Can in same anchor clamps, successively implement a plurality of different deformation processes thus.Said die element is coaxial arrangement and/or will surround each other annularly suitably.
By the method that is used for making hollow body of the present invention, especially be rolled into drum by crimp through the feeding through at least one forming rolls of deep-draw or the perimeter that is compressed on the bottom section of the said hollow body of structure in the central area of workpiece and is placed in the workpiece among the rotation by the workpiece of circle base shape.At this, at first such as also forming conical or funnel shaped preform (Vorform) through spraying (Projizier)-roll extrusion.Then in one or more job step, this preform is deformed into drum.
Said method especially can be by means of the advantage of implementing by device of the present invention, wherein can obtain in this respect to be explained.
Other basic design of the present invention is, at first in the centre workpiece of said round base shape is processed through this mode in the shift-in shaping die for making said hollow body.Can in this process, remain unchanged shape or of the perimeter of said workpiece such as the preform that also can crimp becomes preferred frustum-like shape.In extruding or roll extrusion process subsequently, said perimeter crimp is become drum then.
Utilize by method of the present invention, can be especially little in weight, intensity is high especially and under the few especially situation of internal tank impurity, make hollow body with special saving energy and economic mode, accumulator especially.
In addition, obtain from the use of circle base by the economy of method of the present invention, said round base can obtain with the thickness of trickle classification and good surface quality and small tolerance with less cost.
According to the present invention, said deep-draw or compacting can comprise the one or many deformation process.According to the present invention, can be when workpiece stops, also preferably when workpiece rotates, carry out said deformation process.
Method speed can further be improved in the following manner, and promptly the crimp of the deep-draw of said central area or compacting and said perimeter carries out in same anchor clamps (Einspannung).In addition, use press/roller press suitably, the end face side in the front of said shaping mandrel on this press/roller press is arranged the shaping die.The preferred use by device of the present invention.
The economy of said method can be improved further in the following manner, and promptly when deep-draw was perhaps suppressed, said perimeter especially was deformed into funnel-form.According to this embodiment, make said perimeter become preform in deep-draw or when suppressing and be drum by means of the forming rolls crimp subsequently.Before deep-draw or compacting, usually said workpiece is heated.Then said perimeter can be shaped particularly well.Funnelform shape can be meant especially rotational symmetric shape with tapered cross section, and wherein wall body can protrude in the vertical section, be recessed into or extend as the crow flies, thereby especially produces taper.
Also can stipulate as replacement scheme, deep-draw or the said perimeter shape that remains unchanged when suppressing.This especially is difficult to add man-hour or can is favourable being used for the big round base ledge with long accumulator of diameter greatly the time at workpiece material.
The extra high quality of said hollow body can obtain in the following manner, and promptly said perimeter is supported when deep-draw or compacting.For this reason, such as the hold down gag that preferred annular can be set, this hold down gag is resisted against on the workpiece in a side of said shaping die dorsad.As additional project or replacement scheme, at least one backing roll can be set.At least one backing roll is right such as being provided with, and then said workpiece is externally guided between two right adjacent backing rolls of said backing roll in the zone suitably and passed.Also can make at least one support the forming rolls feeding of workpiece.As long as for support is provided with roller, turning of work piece lentamente suitably just in deep-draw or when suppressing so.
According to the present invention, the wall thickness of good especially definition obtains in the following manner, and promptly said workpiece perhaps stretches at least one other roll extrusion excess of stroke (Rollen ü berlauf) in the crimp process in the zone of drum.Can regulate defined wall thickness or defined flow harden at this.
In addition, advantageously, can when stretching, especially regulate in the end regions at drum and produce wall thickness change through the slit.Small wall thickness reduces can be used to the connector making container neck and/or be used for cartridge.The edge thickness preferable configuration is a multilevel hierarchy.Advantageously then so be provided with, promptly the wall thickness of said drum is less and/or with respect to the remarkable attenuation of the original thickness of workpiece.
A kind of especially many-sided method obtains in the following manner, promptly when deep-draw is perhaps suppressed, changes the wall thickness in the central area.This can reach through the respective design of said clamping element and/or shaping die, shaping mandrel and deformation velocity and/or deformation force.Also can improve said wall thickness.
If especially should the container joint be set in the bottom section of said hollow body, so advantageously,, deep-draw uses preform when perhaps suppressing, and this preform is configured to the round base of the lug with shaping of punching.In principle, such as can use by compacting have or not with centre bore, have or not with lug, have or the preform that do not constitute with the round base of the container bottom of shaping and/or the perhaps preform of alms bowl shape of taper.
Preferably can obtain to be configured as the material of the lug of thickening through the reduction of wall thickness.
As replacement scheme or additional project,, especially after deep-draw or compacting, in bottom section, remove material and make it be configured as flange by means of at least one roller such as stipulating for the container joint of making bottom side.But this method step of in the anchor clamps the same with said deep-draw or compacting and/or crimp, implementing suitably also can be arranged on before said deep-draw or the compacting.Preferably come separately material by means of at least one division roller, (gekammert) forming rolls that this material then especially can be through at least one division is such as being configured as container joint, connector or flange neck.
In addition, particularly advantageous is before deep-draw or compacting, workpiece especially to be heated to the deformation temperature that is on the recrystallization temperature.As additional project or replacement scheme, can with heating be arranged in before crimp, stretching and/or the drawing of drum or after.This can carry out through known heater such as gas welding torch or induction heating apparatus.Preferably also can come said shaping mandrel and/or die are heated through the heater of inside.
In addition, by the present invention, the crimp of said drum after and especially after it stretches the feeding through at least one pulling rolls come the end regions of the said drum of drawing and especially under the situation of formation container neck with its sealing.Said thus hollow body can be economically and is configured to air accumulator apace.
Description of drawings
By means of the preferred embodiment that schematically illustrates in the accompanying drawings the present invention is carried out illustrated in detail below.Wherein:
Fig. 1 to 5 is at the method step of using when implementing by method of the present invention by device of the present invention;
Fig. 6 be configured to different structure by device of the present invention in the method step of Fig. 3;
Fig. 7 to 10 uses the method step of implementing by device of the present invention by first flexible program of method of the present invention;
Figure 11 be configured to different structure by device of the present invention in the method step of Fig. 7;
Figure 12 to 17 uses the method step of implementing by device of the present invention by second flexible program of method of the present invention;
Figure 18 and 19 uses the method step of implementing by device of the present invention by the 3rd flexible program of method of the present invention;
Figure 20 and 21 uses the method step of implementing by device of the present invention by the 4th flexible program of method of the present invention;
Figure 22 is 26 to be to use the method step of implementing by device of the present invention by the 5th flexible program of method of the present invention;
Figure 27 to 29 is by another kind of method flexible program of the present invention;
Figure 30 to 32 is by another method flexible program of the present invention;
Figure 33 to 35 is that another kind is used to make the material heap to be formed into the embodiment on the container by of the present invention;
Figure 36 to 38 uses the method step of implementing by device of the present invention by the another kind of flexible program of method of the present invention;
Figure 39 to 42 is the method steps by the another kind of flexible program of method of the present invention;
Figure 43 is the method step by method of the present invention by another kind of flexible program;
Figure 44 and 45 be use by another kind of flexible program implement by method of the present invention by device of the present invention the time method step;
Figure 46 is the last method step when making air accumulator.
Element identical or similar effect is represented with identical Reference numeral in all embodiment.The diverse ways flexible program in principle can independent assortment.
The specific embodiment
Fig. 1 to 5 shows the method step of using by first embodiment by method of the present invention by device enforcement of the present invention.According to shown method, the workpiece 1 that at first will justify base shape is heated to deformation temperature (Fig. 1) in the transport with support 51.For this reason, said transport 51 is such as having stove, flame generation mechanism and/or sensing apparatus.
Subsequently with said workpiece 1 be clamped in be configured to press/roller press by (Fig. 2) in the device of the present invention.Said press/roller press have shaping mandrel 11 and with the opposed clamping element 18 of said shaping mandrel 11 end faces.Shaping mandrel 11 and clamping element 18 being driven and can relative to each other axially movable mode be arranged on the unshowned lathe round rotation 10 rotatably.
Said clamping element 18 is surrounded by the shaping die 40 of ring-type, and this shaping die 40 can move at the shaping position shown in Fig. 2 and 3 with retracting between the position shown in the Figure 4 and 5 with respect to said clamping element 18.In said shaping position, said shaping die 40 surpasses said clamping element 18 towards the axis of orientation of said shaping mandrel 11 to giving prominence to.Said clamping element 18 and shaping die 40 especially can be configured to can hydraulic operated press unit.
As shown in figure 2, said workpiece 1 be clamped in said hollow body with finished product, the shaping mandrel 11 and said of the interior shape of the bottom of this hollow body has in the zone of container bottom between the shaping die 40 of outer shape of hollow body of finished product with clamping element 18 at least at least.Press the desired shape of the bottom of said hollow body, (Fig. 6) or the smooth (not shown) of (Fig. 3) that said clamping element 18 can be configured to be recessed into, protrusion on end face.Arc or circular profile especially can be set.
As shown in Fig. 3; Make subsequently in the said shaping die 40 of said shaping mandrel 11 axial shift-ins, wherein this relative motion is preferably being carried out with moving when shaping die 40 is on lathe through said clamping element 18 under the fixing situation of shaping mandrel 11.
When moving into said shaping mandrel 11, in deformation process in the central area 4 of said workpiece 1 bottom section of the said hollow body of structure.Simultaneously, more outside perimeter 5 diametrically is deformed into conical surface (Fig. 3).
(Fig. 4) retracts the shaping die 40 on the clamping element 18 and from the working region, take out thus from shaping mandrel 11 vertically subsequently.Be arranged in shaping die 40 the center and have on the end face with the clamping element of said shaping die 40 compression plate that diameter group is littler mutually continue with said workpiece 1 in bottom section towards said shaping mandrel 11 extruding.
Then said shaping mandrel 11, clamping element 18 and the workpiece 1 that is clamped between it are placed among the rotation and make at least one forming rolls that is configured to seaming roll 31 towards said workpiece 1 feeding round rotation 10.In at least one roll extrusion excess of stroke (Dr ü ckwalz ü berlauf), making said perimeter 5 abut against shaping mandrel 11 becomes drum 8, and it is stretched and by means of the demoulding (Fig. 5) from the shaping mandrel 11 of unshowned stripper apparatus.This method especially can be medium at circle base thickness, material can well be out of shape and circle base ledge uses when medium.
For being out of shape better, arrangement in man-hour heating again can added with at least one forming rolls 31.
A kind of flexible program by method of the present invention obtains explaining in Fig. 7 to 10.In the illustrated in front embodiment the compacting and/or the deep-draw process in whole work-piece 1 deform; Opposite with this embodiment; The perimeter 5 at workpiece 1 described in the deformation process shown in Figure 7 at the embodiment of Fig. 7 to 10 is not out of shape, and that is to say that only the part of said workpiece deforms.
Only in next procedure (Fig. 8 and 9), said perimeter 5 just through at least one forming rolls 31 that is configured to seaming roll at first crimp become cylindrical shape and be stretched to finished size through roll extrusion at least one roll extrusion excess of stroke (Rollen ü berlauf) in (Figure 10) subsequently.
This method flexible program especially hour is suitable for and is applicable to thus less container at circle base ledge
.
In this case, said clamping element 18 (Figure 11) that also can be configured to protrude or recessed (Fig. 7) by desired bottom shape.
Figure 12 to 17 show another kind of especially thickness of workpiece big and/or material be difficult to add the method flexible program that be suitable for man-hour.
In this method flexible program, also only in central area 4, deform at workpiece described in the deformation process originally, diametrically more outside perimeter 5 shape (Figure 12 and 13) that then remains unchanged.
Then produce funnel shaped preform (Figure 14 and 15) through extruding or injection (Projizieren), its surface is widened towards open region.Said funnel shaped preform can have wall thickness constant or that change.
Make the perimeter 5 of said workpiece 1 be resisted against on the shaping mandrel 1 and be deformed into drum 8 through further extruding (Figure 16).Can guarantee in this case, for the forming process afterwards of second container bottom and layout connector in the above, enough materials are provided.
(Figure 17) makes said drum 8 at least one roll extrusion excess of stroke
, be stretched to finished size through roll extrusion subsequently.
Figure 18 and 19 shows another kind of method flexible program.In this method flexible program, when compacting or deep-draw, the central area 4 of said workpiece 1 is deformed.In order the time to avoid forming fold in the perimeter 5 at said workpiece 1 in distortion, according to this method flexible program regulation, turning of work piece 1 and by means of backing roll 61,62 supports outer zone 5 lentamente in deformation process.It is right that said backing roll 61,62 forms backing rolls, and wherein, backing roll 61 supports 62 of said workpiece 1 and adjacent backing rolls from said clamping element 18 1 sides and supports said workpiece 1 from shaping mandrel 11 1 sides.The rotation of said backing roll 61,62 extends at this rotation 10 perpendicular to said workpiece 1.
From Figure 20 and 21, obtain another kind of method flexible program, in deformation process, be supported at workpiece 1 described in this method flexible program.In this method flexible program, support the perimeter 5 of said workpiece 1 when carrying out deformation process first in a side of said clamping element 18, make forming rolls 31 be fed on the perimeter 5 of this workpiece 1 and this workpiece 1 is slowly rotated.
For the method flexible program shown in Figure 22 to 24, using a kind of device, in this device, being provided with in the centre of shaping mandrel 11 can be with respect to shaping mandrel 11 axially movable drift 13.In clamping element 18, be provided with the space 14 corresponding with this drift 13.
In the method flexible program shown in Figure 22 to 26, before roll extrusion, carry out twice deformation process.In deformation process first (Figure 23), as in illustrated example before this, make said clamping element 18 carry out axial feed on the lathe and in this process, opposed shaping mandrel 11 is pushed in the said shaping die 40 under the situation of workpiece 1 distortion with shaping die 40 with its encirclement.
In subsequently second time in the deformation process (Figure 24), said drift 13 is from the said space 14 of the end face shift-in of said shaping mandrel 11.This from shaping mandrel 11 towards clamping element the deformation process of 18 direction, can the forming containers lug.This container lug can be worked into suitable dimension through forming rolls in case of necessity subsequently.
Retract said shaping die according to Figure 25, be used to form the free space that is used for ensuing forming rolls 31.According to Figure 26, when stretching, regulate and produce wall thickness change 28 targetedly through the slit of said forming rolls 31.
For the method for in Figure 22 to 26, being explained, use round base suitably in middle punching.
As the replacement scheme of the aforementioned method steps of pressing Figure 26, can make the external margin of said workpiece 1 be deformed into cone shape like the injection (Projizieren) through in axial direction shown in Figure 28 by means of forming rolls 31 according to Figure 27 to 29.Subsequently, make preformed workpiece crimp like this to said shaping mandrel 11 and along its wall thickness, stretch and finally be configured as drum 8 according to Figure 29 by means of forming rolls 31.
Figure 30 to 32 shows another kind of replacement scheme.Different with the illustrated method flexible program in front is; As can be intuitively from finding out Figure 31, said workpiece 1 be deformed into bell or funnel shaped preform by means of forming rolls 31 in one or more roll extrusion excess of stroke
.As in the method in front, said drum 8 crimps are shaped with final subsequently by means of forming rolls 31.
Show a kind of method flexible program according to Figure 33 to 35, in this method flexible program, can be on workpiece 1 by means of the material heap 3 in the middle of forming rolls 31 structures, this material heap 3 is such as being used for the container joint.In the perimeter of said workpiece, said forming rolls 31 is pressed in the wall body of workpiece and its direction towards clamping element 18 is moved.Make the perhaps separated material of part that is squeezed from clamping element 18 skews thus, this clamping element 18 can in axial direction squint by the present invention and can be formed for material thus and pile 3 free space.Pile in 3 such as adding the screwed hole that is used for valve element at said material.
According to the method flexible program of Figure 36 to 38,, deep-draw use a kind of preform when perhaps suppressing as workpiece 1, and this preform is configured to the round base of the lug with shaping 2 of punching.(Figure 36) heats this preform in transport 51.Construct container bottom through deformation process (Figure 37 and 38) subsequently.
In this embodiment, said clamping element 18 also has the space 14 of end face, and this space 14 holds said lug 2 in deformation process.This lug 2 can be used as the container joint on the hollow body of finished product.
In the method flexible program of Figure 39 to 42, in different anchor clamps (Einspannungen), carry out deep-draw or compacting and be used to make the bottom section shaping (Figure 40) of said hollow body and make said perimeter 5 crimps (Figure 42) subsequently.Not only before deep-draw or compacting but also before roll extrusion, heating steps (Figure 39 is Figure 41 in other words) can be set respectively at this.
According to the embodiment of Figure 43, in said transport 51, be provided with heater and the shaping dies that has support.
In the embodiment of Figure 44 and 45, use by device of the present invention, shaping die 40 described in this device have two coaxial arrangement, can relative to each other axially movable die element 41,42.
In first deformation process shown in Figure 44, so arrange the die element 42 of outside, make it align with the die element 41 of the inside in the end face side.Said thus workpiece 1 is supported through said die element 42 in its perimeter 5.Said shaping mandrel 11 moves in the first die element 41 for making central area 4 distortion at this.
In the other deformation process shown in Figure 45, the first die element 41 of said the inside is retracted from shaping mandrel 11 and 42 of the second die elements of said outside carry out feeding.Said thus shaping mandrel 11 is also clamp-oned in the conical opening of the said second die element 42, and this moment is with the perimeter 5 crimp funnelings of said workpiece 1.
The die element 42 of said outside also can return and said perimeter 5 becomes cylindrical shape through the roll extrusion crimp from shaping mandrel 11 subsequently.
Figure 46 shows another kind of method step, and this method step is provided with for the shaping of sealing said hollow body and can follow hard on drum 8.In this method step, said workpiece 1 is heated to deformation temperature, is clamped in extruding-drawbench by means of chuck and places among the rotation from its bottom section one side.The end regions 7 of said workpiece 1 then in case of necessity under the situation that continues the input heat through having lug at least one formation by rotating pulling rolls 38; Lug perhaps is not with in (Figure 46 the right); Seal in the excess of stroke of the container neck of (in the middle of Figure 46)
.In this process, the wall thickness of said container neck can be selected to such an extent that be thinner than, equal or be thicker than the original thickness of said workpiece.
Claims (19)
1. be used for making the device of hollow body, have by the workpiece (1) of circle base shape
-shaping mandrel (11), this shaping mandrel (11) be with can be supported round the driven rotatably mode of rotation (10),
-clamping element (18), this clamping element (18) to be can and being that clamping work pieces (1) can be supported with respect to the axially movable mode of said shaping mandrel (11) round said rotation (10) rotation, and
-at least one forming rolls (31), this forming rolls (31) can carry out axially and/or radial feed with respect to said shaping mandrel (11),
-wherein; On said clamping element (18), arranged at least one shaping die (40); This shaping die (40) can move axially and can move axially with respect to said shaping mandrel (11) for said workpiece (1) is out of shape about said clamping element (18)
It is characterized in that,
-said device is set is used for workpiece (1) being drawn in said shaping die (40) and in this process, being made its distortion through moving axially of said shaping die (40) and/or shaping mandrel (11).
2. press the described device of claim 1,
It is characterized in that,
Said shaping die (40) surrounds said clamping element (18) annularly.
3. press each described device in the claim 1 or 2,
It is characterized in that,
On said shaping mandrel (11) and/or clamping element (18), arranged drift (13), this drift (13) can carry out feeding from the end face of said shaping mandrel (11) or clamping element (18) for implementing deformation process.
4. press each described device in the claim 1 to 3,
It is characterized in that,
Said shaping die (40) have a plurality of can relative to each other axially movable die element (41,42).
5. press each described device in the claim 1 or 2,
It is characterized in that said device is press and/or roller press.
6. be used for by means of the method for making hollow body by each described device of claim 1 to 5 by the workpiece (1) of circle base shape; Said device has with can be round the supported shaping mandrel (11) of the driven rotatably mode of rotation (10), on the said clamping element (18) and can be about this clamping element (18) axially movable and can be with respect to the axially movable shaping die of said shaping mandrel (11) (40), wherein for said workpiece (1) is out of shape can and be that clamping work pieces (1) can be arranged in respect to the supported clamping element (18) of the axially movable mode of said shaping mandrel (11) and at least one round said rotation (10) rotation
-feeding through at least one forming rolls (31) will place the perimeter (5) of the workpiece (1) among the rotation to be deformed into drum (8),
It is characterized in that,
-through deep-draw or be compressed on the bottom section of the said hollow body of structure in the central area (4) of said workpiece (1), wherein said workpiece (1) drawn in and make its distortion in the said shaping die (40) and in this process through moving axially of said shaping die (40) and/or shaping mandrel (11).
7. press the described method of claim 6,
It is characterized in that,
With perimeter (5) injection, extruding or the roll extrusion that place the workpiece (1) among the rotation is said drum (8).
8. press the described method of claim 6,
It is characterized in that,
The crimp of the deep-draw of said central area (4) or compacting and said perimeter (5) carries out in same anchor clamps.
9. press each described method in the claim 6 to 8,
It is characterized in that,
Deep-draw or said perimeter (5) remain unchanged shape or be deformed into funnel-form when suppressing.
10. press each described method in the claim 6 to 9,
It is characterized in that,
Said perimeter (5) especially are supported by means of at least one backing roll (61,62) when deep-draw is perhaps suppressed.
11. by each described method in the claim 6 to 10,
It is characterized in that,
The zone of the drum (8) of said workpiece (1) obtains stretching at least one roll extrusion excess of stroke (Rollen ü berlauf).
12. by the described method of claim 11,
It is characterized in that,
Especially regulate by means of at least one multistage draw roll (36) and/or through the slit in the end regions (7) in said drum (8) when stretching and produce wall thickness change (28) targetedly.
13. by each described method in the claim 6 to 12,
It is characterized in that,
After distortion, the feeding of the end regions of said drum (8) through at least one pulling rolls (38) comes drawing and is closed.
14. by the described method of claim 13,
It is characterized in that said distortion is to stretch.
15. by the described method of claim 13,
It is characterized in that the end regions of said drum (8) is closed under the situation that forms container neck.
16. by each described method in the claim 6 to 15,
It is characterized in that,
When deep-draw was perhaps suppressed, the wall thickness in said central area (4) changed.
17. by each described method in the claim 6 to 16,
It is characterized in that,
Workpiece (1) said round base shape is gone up the opening that structure has hub (2).
18. by each described method in the claim 6 to 17,
It is characterized in that,
Especially after deep-draw or compacting, in bottom section, remove material and make it be configured as flange by means of at least one roller.
19. by each described method in the claim 6 to 17,
It is characterized in that,
Before deep-draw or compacting, said workpiece (1) is heated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006039656.1 | 2006-08-24 | ||
| DE102006039656A DE102006039656B4 (en) | 2006-08-24 | 2006-08-24 | Device and method for producing a hollow body from a ronde-shaped workpiece |
| PCT/EP2007/007067 WO2008022715A1 (en) | 2006-08-24 | 2007-08-09 | Device and method for producing a hollow body from a workpiece in the form of a round blank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101528376A CN101528376A (en) | 2009-09-09 |
| CN101528376B true CN101528376B (en) | 2012-06-27 |
Family
ID=38657313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800397438A Expired - Fee Related CN101528376B (en) | 2006-08-24 | 2007-08-09 | Device and method for producing a hollow body from a workpiece in the form of a round blank |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20100011830A1 (en) |
| KR (1) | KR20090066268A (en) |
| CN (1) | CN101528376B (en) |
| BR (1) | BRPI0716581A2 (en) |
| DE (1) | DE102006039656B4 (en) |
| MX (1) | MX342763B (en) |
| RU (1) | RU2445181C2 (en) |
| WO (1) | WO2008022715A1 (en) |
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| FR2950548B1 (en) * | 2009-09-30 | 2011-12-30 | Farouk Halaimia | MANUFACTURE OF MONOCOQUE AIRCRAFT FUSELAGE, MONOCOIC TRUNK IN ONE SINGLE METAL PIECE |
| DE102010012698B4 (en) | 2010-03-24 | 2020-07-16 | Ssb-Maschinenbau Gmbh | Device for the shaping of light alloy rims |
| DE102010016960A1 (en) * | 2010-05-14 | 2011-11-17 | Thyssenkrupp Steel Europe Ag | Method for producing hollow profiles with a longitudinal flange |
| CN101961745A (en) * | 2010-08-27 | 2011-02-02 | 芜湖众发旋压技术有限公司 | Method for forming two workpieces by spinning and mold group using same |
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| CN102728688A (en) * | 2011-04-01 | 2012-10-17 | 北京超代成科技有限公司 | Non-cutting processing method and device for unilateral press forming of bottom surface of metal sheet |
| ES2532217T3 (en) * | 2012-04-20 | 2015-03-25 | Leifeld Metal Spinning Ag | Procedure and device for shaping a work piece |
| CN104347883A (en) * | 2013-08-07 | 2015-02-11 | 上海电气集团股份有限公司 | Sodium-sulfur-battery anode container and processing method thereof |
| DE102014101972B4 (en) | 2014-02-17 | 2018-06-07 | Thyssenkrupp Steel Europe Ag | Method for producing a seamless pressure vessel for storing hydrogen |
| DE102015002708B3 (en) * | 2014-09-09 | 2015-10-22 | Mt Aerospace Ag | Containers for receiving and storing liquids and viscous substances, in particular cryogenic fluids, and process for its preparation and its use |
| JP6583884B2 (en) * | 2015-08-31 | 2019-10-02 | 日本スピンドル製造株式会社 | Cylindrical material spinning apparatus and spinning molding method |
| DE102016105771A1 (en) * | 2016-03-30 | 2017-10-05 | Thyssenkrupp Steel Europe Ag | Method for producing a hub having a shaped body and apparatus for carrying out the method |
| DE102016115791A1 (en) * | 2016-08-25 | 2018-03-01 | WF-Maschinenbau- und Blechformtechnik GmbH & Co. Kommanditgesellschaft | Method for chipless production of a rotationally symmetrical body from a sheet metal blank |
| RU2639202C2 (en) * | 2016-12-13 | 2017-12-20 | Виктор Васильевич Леонтьев | Method for drawing hollow cylindrical articles and drawing machine for its implementation |
| JP6618940B2 (en) * | 2017-03-03 | 2019-12-11 | 株式会社三五 | Spinning method and cylindrical body having a head cone at the end |
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| RU2685832C1 (en) * | 2018-05-07 | 2019-04-23 | Виктор Васильевич Леонтьев | Method of forming hollow thin-wall parts of complex shape |
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| CN109262211A (en) * | 2018-11-01 | 2019-01-25 | 桂林电子科技大学 | A kind of storage sphere manufacturing method and its device |
| DE102019109183A1 (en) * | 2019-04-08 | 2020-10-08 | Winkelmann Powertrain Components GmbH & Co. KG. | Method for manufacturing a hollow shaft |
| CN114101474B (en) * | 2020-08-31 | 2024-05-14 | 宝山钢铁股份有限公司 | Two-pass forming processing method for convex hull of module backboard |
| DE102021109866B3 (en) | 2021-04-20 | 2022-08-11 | Thyssenkrupp Steel Europe Ag | Process for manufacturing a pressure vessel |
| RU2769795C1 (en) * | 2021-07-30 | 2022-04-06 | акционерное общество "Научно-производственное объединение "Техномаш" им. С.А. Афанасьева" (АО "НПО "Техномаш" им. С.А. Афанасьева") | Method of cold forming of bottoms from sheet workpieces |
| CN114570851A (en) * | 2022-05-05 | 2022-06-03 | 太原科技大学 | Forming process of seamless metal gas cylinder liner |
| CN115069921B (en) * | 2022-06-08 | 2023-05-23 | 广东省泓沛五金有限公司 | Full-automatic pneumatic spring cutting and continuous stamping device |
| CN117324484B (en) * | 2023-11-22 | 2024-05-10 | 河北机电职业技术学院 | Multistage regulation processing equipment of automobile assembly spare |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20090066268A (en) | 2009-06-23 |
| US20100011830A1 (en) | 2010-01-21 |
| DE102006039656A1 (en) | 2008-02-28 |
| RU2445181C2 (en) | 2012-03-20 |
| MX342763B (en) | 2016-10-12 |
| BRPI0716581A2 (en) | 2013-10-08 |
| CN101528376A (en) | 2009-09-09 |
| RU2009105676A (en) | 2010-09-27 |
| MX2009001979A (en) | 2009-05-28 |
| DE102006039656B4 (en) | 2008-12-18 |
| WO2008022715A1 (en) | 2008-02-28 |
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