EP2024111A1 - Device and method for producing profiled bodies - Google Patents
Device and method for producing profiled bodiesInfo
- Publication number
- EP2024111A1 EP2024111A1 EP07722115A EP07722115A EP2024111A1 EP 2024111 A1 EP2024111 A1 EP 2024111A1 EP 07722115 A EP07722115 A EP 07722115A EP 07722115 A EP07722115 A EP 07722115A EP 2024111 A1 EP2024111 A1 EP 2024111A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- segment discs
- profile
- forming process
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000005461 lubrication Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling
- B21H1/20—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling rolled longitudinally
-
- 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
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
- B21H5/025—Internally geared wheels
Definitions
- the invention relates to an apparatus and a method for producing longitudinal grooves in cylindrical workpieces, in particular for longitudinal grooves with non-uniform profile, wherein the deformation by means of SegmentSscalen, similar to a rolling process.
- profile bodies such as disc carriers of clutches, toothed belt pulleys or similar workpieces with a cylindrical basic structure
- high accuracies and precision are often required.
- accuracy and surface quality are important.
- a special rolling tool makes it possible to produce the workpiece from a blank having a smooth outer contour by means of a press, wherein each press stroke forms a workpiece from a blank. With each press stroke, a rolling process takes place in which the profile rollers press the desired outer profile into the lateral surface of the workpiece.
- the profile rollers are arranged in a lower tool along the circumference of the workpiece to be machined. If the workpiece is pressed between the rollers by means of an upper tool fastened to the plunger of the press, these are supported on support rollers with appropriate mounting.
- the lower tool can be constructed rotationally symmetrical, wherein the profile of the workpiece generating individual profile rollers are regularly distributed at a uniform angle to each other along the circumference of the workpiece.
- this slip usually does not cause problems.
- the profile is irregular in the longitudinal direction, for example, with a web running transversely to the longitudinal groove in the middle of the profile length, the slip leads to dimensional inaccuracies and thus to quality defects.
- DE 195 06 391 A1 discloses a method in which the profile rollers are driven in such a way that the peripheral speed in the forming area coincides with the speed of the workpiece.
- the drive is made by transmitting the plunger movement via gear means, such as racks and gears on the profile rollers. Because of this Method or by the arrangement of the above-mentioned transmission means the slip between the profile rollers and workpiece is reliably avoided.
- EP 0 006 137 A1 likewise describes an apparatus for producing longitudinal grooves in a cylindrical workpiece.
- the forming is done not by profile rolls but by segment discs.
- the segment discs are not driven.
- the outer contours of the segment discs roll on the surface of the moving down workpiece.
- the segment discs move on a circular trajectory.
- the positions of the segment discs at the beginning of the procedure are defined by spring-actuated retaining pins.
- Segment discs are connected by means of a spherical plain bearing with a housing. Due to the fact that the segmented disks are moved exclusively by the forces acting during the deformation and have no drive synchronized with the tappet movement, a slight slip between the segmented disk surface and the workpiece can not be avoided. In addition, a precisely defined initial position of the segment discs for the forming process can not be realized. Especially for workpieces with longitudinally irregular groove profiles this is a decisive • disadvantage. Task and advantage of the invention
- the invention has for its object to develop a method and apparatus for producing profiles in cylindrical workpieces, by means of a structurally simple and thus cost-effective and reliable tool, with a slip between the workpiece surface and the Umformtechnikmaschinen is reliably avoided, and wherein by a precisely defined starting point of the Umformeingriffes a high precision of the profile to be produced is achieved.
- This object is achieved on the basis of a method according to the preamble of claim 1 by the characterizing features of claim 1 and starting from a device according to the preamble of claim X, by the characterizing features of claim Y.
- the invention is based on the idea to perform the forming process similar to a Rollumformmaschinemaschinemaschineelement, but with driven SegmentScheiben.
- the segment discs are guided on sliding surfaces and are synchronized by a positive coupling with the punch or tool lower part with the movement of the workpiece., This means that the segment discs are not moved by the forces acting during the forming forces, but by the movement of the punch. This eliminates slippage between the segment discs and the workpiece during forming.
- the Segment discs guided on sliding surfaces. These sliding surfaces are curved such that a rolling of the profiled segment disc surfaces on the workpiece is made possible. So that the segment discs can move along the curved sliding surfaces, they are from below through the
- the holding force is applied to the segment discs of gas springs, which in turn are connected to the upper tool.
- Other power transmission means, such as springs are conceivable.
- the SegmentScheiben are held at any time of the forming between the tool shell and attached components and the lower tool part and thus perform exactly the same vertical movement of the workpiece, which is also connected to the upper tool or with components attached thereto.
- the contact surfaces of the components, which are in communication with the segment discs, are designed so that the horizontal portion of
- Segment disc movement is recorded.
- the surfaces are configured to allow for substantially horizontal sliding movement between the segment discs and the contacting components.
- Another advantage of the method and the device according to the invention is the possibility to lift the workpiece out of the device after the forming and to release it for a workpiece transport system.
- This lifting is preferably carried out by means of a gas spring.
- Actuating mechanisms are conceivable, for example, the lifting of the formed workpiece can also be done by means of hydraulic or pneumatic cylinder.
- Another feature of the method and the device according to the invention is that the tool lower part is displaced during the forming process through the upper tool over the punch, the rolling mandrel and the workpiece down against a force.
- This force opposing the forming movement can for example result from the lifting mechanism.
- Figure 5 Enlarged view of Umformeingriffes during forming
- FIG. 1 shows the device 1 according to the invention in a sectional view.
- the device 1 consists of an upper tool part 2 and a lower tool part 3. With the upper die 2 firmly connected to the punch 4 with the
- the lower tool part 3 is in a cast housing. 6 vertically movably mounted. Via a gas spring 7, the lower tool part 3 is connected to a workpiece holder 8. In the illustrated position, the workpiece 9 as a blank was already on the grippers 10 of a workpiece transport system not shown here on the
- Workpiece 9 is generated in that the workpiece holder 8 is displaced with the workpiece 9 against the force of the gas spring 7 down.
- the device 1 has reached a position in which a driver 11, which is connected via gas springs 12 with the upper tool part 2, the upper contact surfaces of the segment discs 13 has reached.
- the lower contact surfaces of the segment discs 13 rest on the lower tool part 3.
- the gas springs 12 are now retracted, the rolling mandrel 5 is located in the workpiece 9 and the segment discs 13 are held from above by the driver 11 and from below through the lower tool part 3 in a well-defined position.
- the deformation of the workpiece 9 begins by the segment discs thirteenth Due to the positive connections of all moving components, the segment discs 13, based on their vertical component movement, moved synchronously with the workpiece 9 down.
- the necessary for the forming process rolling of the segment discs 13 on the workpiece 9 is achieved in that the segment discs 13 move on a curved sliding surface 14 along.
- the segment discs 13 move in a circular path and can thus roll precisely on the workpiece 3.
- the workpiece 9 facing sides of the segment discs 13 are equipped with the negative shape of the workpiece 9 to be produced profile.
- this embodiment is a profile with longitudinal grooves, which have a web 15 in the middle of the profile.
- this profile is clearly 'to recognize. In the position shown, the forming has already taken place. In the middle of the profile of the web 15 is clearly visible. The shape and in particular the position of this web 15 high quality requirements are made.
- a precise deformation is only possible if, as in the device 1 according to the invention, a precisely defined starting position for the deformation is present, which is independent of friction conditions between segment discs 13 and the workpiece 9 or thickness tolerances of the workpiece 9.
- FIG. 4 shows the position of the device 1 after the forming process.
- the segment discs 13 have been pressed by the contact with the driver 11 down and have rolled so the profile on the workpiece 9.
- Segment discs 13 on the sliding surfaces 14 is enabled or supported by a pressure lubrication, which over the Lubrication channel 16 is carried out. Due to the circular movement of the segment discs 13 along the sliding surfaces 14 arise at the contact points between the driver 11 and the segment discs 13 and between the lower tool part 3 and the SegmentScheiben 13, relative movements. The contact surfaces of the driver 11 and the lower tool part 3 are therefore designed so that the segment discs 13 are held or guided at any time during the forming both from above, and from below. After the forming process is completed, the tool upper part 2 moves with the
- stamp 4 and the rolling mandrel 5 upwards.
- the gas spring 7 extends and moves the workpiece holder 8 with the formed workpiece 9 in the same manner as the punch 5 up until the position is reached, which is shown in Figure 1.
- the workpiece 9 is now free and can be gripped and transported by the grippers 10 of the workpiece transport system.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006025034A DE102006025034A1 (en) | 2006-05-26 | 2006-05-26 | Process and assembly to cut elongated grooves in cylindrical workpieces forming part of an automotive clutch |
PCT/DE2007/000556 WO2007137543A1 (en) | 2006-05-26 | 2007-03-27 | Device and method for producing profiled bodies |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2024111A1 true EP2024111A1 (en) | 2009-02-18 |
EP2024111B1 EP2024111B1 (en) | 2011-06-29 |
EP2024111B8 EP2024111B8 (en) | 2011-09-21 |
Family
ID=38178935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07722115A Active EP2024111B8 (en) | 2006-05-26 | 2007-03-27 | Device and method for producing profiled bodies |
Country Status (7)
Country | Link |
---|---|
US (1) | US8596104B2 (en) |
EP (1) | EP2024111B8 (en) |
AT (1) | ATE514500T1 (en) |
CA (1) | CA2653049C (en) |
DE (1) | DE102006025034A1 (en) |
MX (1) | MX2008015034A (en) |
WO (1) | WO2007137543A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017608B3 (en) * | 2008-04-06 | 2009-04-30 | Aweba Werkzeugbau Gmbh Aue | Internally and externally toothed cup-shaped sheet metal part e.g. cup shaped clutch plate support, producing method for use in forming press, involves adjusting target profile at open end of sheet metal parts by pressure discharge |
DE102008002297A1 (en) | 2008-06-09 | 2009-12-10 | Allgaier Werke Gmbh | Roll forming method for producing longitudinally toothed profiled bodies in cup-shaped cylindrical workpieces |
DE102008038127B3 (en) * | 2008-08-18 | 2010-02-04 | Leib, Ulrich, Dr.-Ing. | Method for producing clutch plate carrier of vehicle gearbox, involves moving profile roller during rolling process, where roller set follows contour of externally toothed reference profile under maintaining radial pressure |
DE102008047985A1 (en) | 2008-09-18 | 2010-03-25 | Webo Werkzeugbau Oberschwaben Gmbh | Apparatus and method for producing longitudinal grooves in cylindrical workpieces |
DE102010020097A1 (en) * | 2010-05-10 | 2011-11-10 | Webo Werkzeugbau Oberschwaben Gmbh | Device for manufacturing snap ring groove in cylindrical profile body, has tool upper part with profile bolt and counter holder, where multiple connecting rod molded parts are arranged in opposite manner in housing |
JP5569495B2 (en) * | 2011-09-30 | 2014-08-13 | アイシン・エィ・ダブリュ株式会社 | Manufacturing method and manufacturing apparatus for cup-shaped parts |
DE102013006150B4 (en) | 2013-04-10 | 2021-09-30 | Webo Werkzeugbau Oberschwaben Gmbh | Component with internal and external toothing as well as a process for manufacturing the component and a tool set for carrying out the process |
DE102015009733A1 (en) * | 2015-07-31 | 2017-02-02 | Transform Automotive LLC, Inc. | Method for rolling disc carriers or the like and a profile roller set used for this purpose |
DE102016006589B4 (en) | 2016-05-28 | 2021-06-10 | Form Technology Gmbh | Method and device for producing longitudinal grooves in cylindrical components |
CN108167333B (en) * | 2016-12-07 | 2023-12-08 | 汕头市东方科技有限公司 | Tank body groove type processing device |
DE102017222891A1 (en) | 2017-12-15 | 2019-06-19 | Zf Friedrichshafen Ag | Sheet metal plate carrier and method for its speed increase |
CH714772A1 (en) | 2018-11-15 | 2019-09-13 | Grob Ernst Fa | Device and method for cold forming profiling of workpieces. |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2145125A (en) * | 1936-10-06 | 1939-01-24 | Mark E Moore | Can forming machine |
US3591136A (en) | 1969-02-26 | 1971-07-06 | Arthur E Bishop | Rotary valve with curved valve slot |
FR2081297B2 (en) * | 1970-03-20 | 1974-05-03 | Cuq Pierre | |
DE2017709A1 (en) | 1970-04-14 | 1971-11-04 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Tool for rolling in longitudinal grooves in cylindrical workpieces |
FR2281180A2 (en) * | 1974-08-09 | 1976-03-05 | Anvar | Machine for radially contracting pipes - internal plug ensures controlled wall thickness |
US4178790A (en) * | 1978-05-22 | 1979-12-18 | Ex-Cell-O Corporation | Roll-through cold forming apparatus |
ES8405648A1 (en) * | 1982-07-08 | 1984-06-16 | Acco Babcock Inc | Improvements in or relating to swaging apparatus. |
ZA857578B (en) * | 1984-10-04 | 1986-05-28 | Bishop Arthur E | Means for manufacturing components of rotary valves |
CH686817A5 (en) * | 1992-03-04 | 1996-07-15 | Grob Ernst Fa | Apparatus and method for producing an at least internally profiled straight or slanting to Werkstueckachse hollow Werkstuecks. |
DE19506391B4 (en) * | 1995-02-23 | 2010-01-07 | Allgaier Werke Gmbh | Method for producing a toothed or wavy profile having transmission component of a sheet metal blank |
DE19531907A1 (en) | 1995-08-30 | 1997-03-06 | Schuler Pressen Gmbh & Co | Device and method for producing profiled bodies |
US5829297A (en) * | 1996-06-07 | 1998-11-03 | Exedy Corporation | Press apparatus for forming gear teeth |
DE19639081C2 (en) * | 1996-09-24 | 2003-06-18 | Herzing & Schroth Gmbh & Co Kg | Device for producing a workpiece with a cylindrical profiled wall |
-
2006
- 2006-05-26 DE DE102006025034A patent/DE102006025034A1/en not_active Withdrawn
-
2007
- 2007-03-27 EP EP07722115A patent/EP2024111B8/en active Active
- 2007-03-27 MX MX2008015034A patent/MX2008015034A/en active IP Right Grant
- 2007-03-27 AT AT07722115T patent/ATE514500T1/en active
- 2007-03-27 WO PCT/DE2007/000556 patent/WO2007137543A1/en active Application Filing
- 2007-03-27 CA CA2653049A patent/CA2653049C/en active Active
-
2008
- 2008-11-20 US US12/274,432 patent/US8596104B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007137543A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2007137543A1 (en) | 2007-12-06 |
EP2024111B1 (en) | 2011-06-29 |
CA2653049C (en) | 2014-04-08 |
EP2024111B8 (en) | 2011-09-21 |
CA2653049A1 (en) | 2007-12-06 |
DE102006025034A1 (en) | 2007-11-29 |
US20090126440A1 (en) | 2009-05-21 |
MX2008015034A (en) | 2008-12-10 |
US8596104B2 (en) | 2013-12-03 |
ATE514500T1 (en) | 2011-07-15 |
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