EP1178864A1 - Sheet forming machine - Google Patents
Sheet forming machineInfo
- Publication number
- EP1178864A1 EP1178864A1 EP01917079A EP01917079A EP1178864A1 EP 1178864 A1 EP1178864 A1 EP 1178864A1 EP 01917079 A EP01917079 A EP 01917079A EP 01917079 A EP01917079 A EP 01917079A EP 1178864 A1 EP1178864 A1 EP 1178864A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet metal
- metal forming
- forming machine
- roll axis
- machine according
- 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
Classifications
-
- 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
Definitions
- the invention relates to a sheet metal forming machine, comprising a machine frame, a first rolling tool which is rotatably mounted on the machine frame about a first roll axis, a second rolling tool which is rotatable about a second roll axis and cooperates with the first rolling tool and which is rotatably mounted in an infeed bearing, which in turn is opposite the
- the machine frame can be moved and locked transversely to the first roll axis by means of a feed drive, so that a feed position of the second roll tool can be set relative to the first roll tool, and a roll drive for at least one of the roll axes.
- Sheet metal forming machines of this type are known from the prior art; for example, manual actuation of the feed drive and manual adjustment of the roller drive are provided.
- the invention is therefore based on the object of improving a sheet metal forming machine of the generic type in such a way that it can be operated as simply as possible.
- the infeed drive is designed as a positionable infeed drive by means of a control, by means of which the second rolling tool can be moved into predefined, predefinable infeed positions, that the rolling drive is in the form of a controllable rolling drive and that Control of the roll axis positions of the roll axes are detectable and roll axis positions and delivery positions can be linked to one another.
- the advantage of the solution according to the invention is to be seen in the fact that with this a simplified operation of the sheet metal forming machine is possible, since the delivery of the second rolling tool to the first rolling tool can be carried out by the control system by linking feed positions and roll axis positions.
- the roll axis positions and infeed positions can in principle be linked in any manner, for example in the manner known from NC-controlled machines.
- a particularly advantageous and simple solution for the operation of such a sheet metal forming machine provides that the controller assigns delivery positions to the roll axis positions and stores them as a data record in a memory.
- Such an assignment of delivery positions to roll axis positions allows the delivery positions assigned to them to be automatically started by the control in a simple manner when the individual roll axis positions are approached.
- the memory stores data records for at least one forming cycle of a workpiece.
- the memory in such a way that it is able to store several different forming cycles for different workpieces and creates the possibility of calling up the suitable forming cycle for the respective workpiece to be formed.
- the data records are recorded by the control, the most varied of possibilities are conceivable. For example, it is conceivable to predefine the data records via numerical data to the controller and to have them stored in the memory by the controller.
- Another possibility is to use computer simulation to define the data records and have them stored in the memory by the controller.
- a particularly inexpensive and, above all, simple solution for the user of the sheet metal forming machine provides that the control system detects an assignment of delivery positions to roll axis positions with a learning mode.
- a particularly convenient and particularly user-friendly solution provides that the data records can be recorded by the control in the course of a manually controlled forming cycle that is actually carried out on a workpiece with the sheet metal forming machine.
- This solution has the advantage that the user of the sheet metal forming machine can form a first workpiece conventionally by manually adjusting the roll axis positions and the infeed positions and at the same time during the forming the assignment of delivery positions and roll axis positions of the workpiece can be saved via the learning mode, so that the subsequent forming of workpieces of the same type can then be carried out controlled by the controller.
- a particularly advantageous solution provides that with the control in a forming mode, a controlled forming of a workpiece can be carried out, in which the control, by reading the stored data, automatically realizes the stored assignment of the infeed positions to the roller axis positions by actuating the infeed drive.
- the operator of the sheet metal forming machine always has the option of stopping it, for example if he detects problems when machining the workpiece. Furthermore, the operator can specify the maximum speed in a simple manner, observe the machining of the workpiece and can thus always visually check the forming process, while the control then automatically assigns the delivery positions to the individual roll axis positions.
- the controller has a speed limitation mode in which the maximum in the forming mode with the controller possible speed of the roll axis movement can be set differently from the manually predeterminable speed of the roll axis movement.
- the controller can automatically actively influence the roll axis movement and reduce the speed of the roll axis movement.
- transition to such a speed limit mode can always take place, for example, when an infeed movement is to be carried out by the infeed drive.
- a particularly advantageous embodiment of such a speed limiting mode provides that the control adjusts the maximum possible speed of the roll axis movement to the maximum possible speed of the feed movement so that the assignment of the feed position and roll axis position is maintained.
- the control adjusts the maximum possible speed of the roll axis movement to the maximum possible speed of the feed movement so that the assignment of the feed position and roll axis position is maintained.
- the assignment could take place, for example, using separate data records in which the information about the roll axis movement is assigned to the roll axis positions.
- a particularly favorable solution provides, however, that the information about roll axis movements in the data records include the roll axis positions and the delivery positions.
- a particularly favorable embodiment provides that the control in the speed limiting mode when the direction of movement of the roll axis movement changes, reduces the speed of the roll axis movement to zero in accordance with a predetermined course and subsequently increases again in accordance with a predetermined course in the reverse direction.
- a particularly favorable solution provides that the control system, based on the current roll axis position, record the information assigned to future roll axis positions.
- the control works particularly expediently when it changes to the speed limiting mode on the basis of information assigned to future roll axis positions and thus, so to speak, "anticipatingly" adapts the speed of the roll axis movement in accordance with the settings to be carried out in the future.
- the machine frame has a stand with a head part arranged on it, that in the head the first rolling tool is rotatably mounted about the first roll axis and that the delivery bearing for the second rolling tool is arranged in the head part.
- Such a sheet metal forming machine is preferably designed as a so-called beading machine.
- the feed drive is usually arranged on a projection of the head part, so that the projection of the head part must be sufficiently stable to in particular also carry the feed drive and to absorb the necessary forces.
- a further solution according to the invention is therefore based on the object of improving a sheet metal forming machine in such a way that the head part can be designed more advantageously and more simply.
- this task comprises a machine frame, a first rolling tool rotatably mounted on the machine frame about a roll axis, a second rolling tool rotatable about a second roll axis and interacting with the first rolling tool, which is rotatably mounted in a delivery bearing, which in turn is transverse to the machine frame is movable and lockable to the first roll axis by means of a feed drive, so that a feed position of the second roll tool can be set relative to the first roll tool, and a roll drive for at least one of the roll axes, according to the invention thereby solved that the machine frame has a stand with a head part arranged on it, that in the head part the first rolling tool is rotatably mounted about the first rolling axis and the delivery bearing for the second rolling tool is arranged in the head part that the delivery bearing on one facing the rolling tools End region of an arm extending in the head part is mounted and that the feed drive is arranged outside a projection of the head part on the machine frame and acts
- the arm for moving the delivery bearing also enables the forces required for the delivery of the delivery bearing to be intercepted essentially outside the projection of the head part via the machine frame.
- a particularly favorable solution provides that the arm is part of a lever gear which can be driven by the feed drive, which creates a structurally particularly favorable possibility of transmitting the forces acting on the feed bearing outside the projection onto the machine frame.
- lever gear is mounted on the machine frame via a bearing axis which is arranged at a distance from the rolling tools.
- the bearing axis is arranged outside the projection of the head part. It is particularly advantageous if the bearing axis is arranged in an area of the machine frame facing away from the rolling tools.
- a particularly favorable arrangement of the bearing axis provides that it is arranged in the base of the head part, so that the tensile forces transmitted from the bearing axis to the machine frame act in a region of the head part, namely the base, supported by the stand, and thus simple stabilization the storage of the bearing axis relative to the stand is possible.
- a particularly favorable embodiment of the lever mechanism provides that it comprises a second arm, on which the feed drive acts.
- the second arm of the lever gear can basically extend in any direction. In order to obtain the most compact possible design of the sheet metal forming machines according to the invention, it is preferably provided that the second arm extends in the direction of the stand.
- lever mechanism creates the possibility of placing the actuation of the lever mechanism in the area of the stand and thus in an area of the sheet metal forming machine which can be easily provided with great stability.
- a particularly favorable design of the sheet metal forming machine according to the invention provides that the feed drive acts on the arm via a reduction gear. Has this solution the advantage that sufficiently low forces can be generated for the movement of the delivery bearing with an already low drive power, so that there is in particular the possibility of using an electric motor.
- the reduction gear may be formed in "unter defencelichster manner. One possibility would be to form the, the reduction gear as a conventional gear transmission. It is particularly favorable, however, in particular in order to apply large forces when the reduction gear comprises a wedge gear.
- Such a wedge gear can be, for example, a spindle gear or an eccentric gear.
- a particularly favorable solution provides that the wedge gear is a cam gear.
- Such a cam mechanism can be implemented constructively with particularly simple means if the cam mechanism has a cam which acts on a cam follower arranged on the lever mechanism.
- the cam mechanism is designed so that the cam acts on the cam follower in the sense of an infeed of the second rolling tool on the first rolling tool, so that the cam mechanism can generate the large force required for infeed of the second rolling tool on the first rolling tool.
- the lever mechanism has one has elastic energy storage, which acts in the sense of moving the second rolling tool relative to the first rolling tool opposite to the infeed direction on the first arm.
- the lever mechanism can in principle be of any complexity, with the first arm and the second arm being arranged on the one hand.
- a particularly simple constructive solution provides that the lever mechanism comprises an angle lever which forms the first arm and the second arm and extends with the first arm in the head part and with the second arm in the stand.
- Figure 1 is a vertical section through a sheet metal forming machine according to the invention.
- Fig. 2 is a side view in the direction of arrow A in Fig. 1;
- FIG. 3 shows a schematic representation of a control according to the invention
- Fig. 4 is an illustration of a control panel for the control according to the invention and Fig. 5 is a diagram showing the assignment of delivery positions to roll axis positions in the course of a forming cycle.
- the head part 18 is fixedly connected to the stand 16 and, starting from its base 20 arranged above the stand 16, has a projection 22 which extends laterally beyond the stand 16.
- a bearing sleeve 24 which is firmly connected to the stand 16 and is anchored in the stand 16 with one end region 26 and ends at a distance from the stand 16 with the opposite end region 28.
- the bearing sleeve 24 serves to mount a first tool shaft 30, which extends transversely to the stand 16, preferably approximately horizontally, and which is rotatable about a first roll axis 32.
- the first tool shaft 30 projects beyond the end 28 of the bearing sleeve 24 with a front end 34 and carries a first rolling tool 40 thereon, which is connected in a rotationally fixed manner to the first tool shaft 30.
- first tool shaft 30 extends through the bearing sleeve 24 and thus also through the projection 22 and the base 20 of the head part 18 and on a side opposite the projection 22 beyond the stand 16 and the head part 18 to a rear end 36 .
- a drive designated as a whole by 42 preferably an electric drive motor 44 with a reduction gear 46.
- first tool shaft 30 also carries an intermediate pinion 48, which is arranged in the region of the base 20 of the head part 18 between the bearing sleeve 24 and the rear end 36 and with which a second tool shaft 50 can be driven, which is located on a side of the stator 16 opposite the lies first tool shaft 30 and is rotatable about a second roll axis 52.
- the second tool shaft 50 also extends beyond the projection 22 of the head part 18 and carries at its front end 54 a second rolling tool 60, which interacts with the first rolling tool 40 in the sense of a rolling sheet metal working of a workpiece 64, for example the workpiece 64 with a Bead 66 to be provided.
- the second tool shaft 50 also extends into the head part 18 and thereby through the projection 22 into the base 20 and ends in the region of the base 20 with a rear end 56.
- the rotatable mounting of the second tool shaft 50 takes place, on the one hand, by means of a pivot bearing 68, which is arranged in the region of the rear end 56 and is pivotably mounted relative to the machine frame 10, and a feed bearing 70 which is arranged near the front end 54 and which is at a distance from the second rolling tool 60, preferably approximately the end region 28 of the bearing sleeve 24 is arranged. Furthermore, to drive the second tool shaft 50, an intermediate pinion 72 is provided near the rear pivot bearing 68, preferably directly next to it, which is in direct engagement with the intermediate pinion 48.
- the drive 42 thus first drives the first tool shaft 30 and, via the intermediate pinions 48 and 72, drives the second tool shaft 50, which is derived from the first tool shaft 30.
- the second rolling tool 60 can now be moved transversely to the first rolling axis 32 in a direction 74, preferably approximately vertically parallel to a plane running through the first rolling axis 32, in order to process the second rolling tool 60 relative to the first rolling tool 40 To be able to deliver the workpiece in a defined manner, that is, to be able to position the second rolling tool 60 in defined infeed positions relative to the first rolling tool 40.
- a first arm 80 of a lever mechanism extends in the head part 18 and carries the feed bearing 70 arranged in the projection 22 of the head part 18 at a front end 84 and extends through from its front end 84 the projection 22 extends to the base 20 of the head part 18.
- the rear pivot bearing 68 for the second tool shaft 50 which is arranged in the region of a rear end 86, is either pivotably mounted independently on the machine frame 10 or is held at the rear end 86 and pivotable with the arm 80.
- the first arm 80 is in the area of the rear end 86 about a pivot axis 88 by means of bearing pins 89 in the base 20 of the head part 18 on the machine frame 10 pivotally mounted.
- the pivot axis 88 is close to the rear pivot bearing 68 and the intermediate pinion 72, preferably immediately adjacent to or passes through them, so that the pivoting movement of the first arm 80 about the pivot axis 88 to achieve different infeed positions of the second rolling tool 60 is such that the intermediate pinion 72 always remains in engagement with the intermediate pinion 48 and thus the rotational movement of the second tool shaft 50 always remains coupled with the rotational movement of the first tool shaft 30.
- the lever mechanism 82 further comprises a second arm 90 rigidly connected to the first arm 80, which extends from its rear end 86 in the direction of the foot part 12 and is preferably arranged within the stand 16 and has an end 94 which is remote from the pivot axis 88
- Curve follower 96 carries in the form of a roller rotatably mounted on an axis 99.
- the curve follower 96 rests against a cam disk 100 which is mounted relative to the stator 16 and is rotatably mounted about an axis of rotation 98 which is fixed relative to the stator 16 and which bears a trajectory 102 which is radially outer to the axis of rotation 98 and extends spirally to the axis of rotation 98, so that corresponding to the rotational position the cam disk 100, the cam follower 96 can be positioned at different distances from the axis of rotation 98.
- the cam plate 100 can be driven by an infeed drive designated as a whole by 110, which preferably has an electric motor 112 and a gear 114.
- the second arm 90 is by means of an elastic force accumulator 116 which, on the one hand, engages the stand 16 and, on the other hand, is always acted upon by an elastic force on the second arm 90 in such a way that the curve follower 96 rests on the trajectory 102.
- the distance of the curve follower 96 from the axis of rotation 98 can be varied, and thus the second arm 90 can be pivoted relative to the machine frame 10 due to its pivotability about the pivot axis 88, resulting in the simultaneous pivotability of the first arm 80 also results in the machine frame 10, in particular relative to the head part 18.
- the cam follower 96 is now arranged relative to the cam disk 100 such that an increase in the distance of the cam follower 96 from the axis of rotation 98 leads to an infeed of the infeed bearing 70 in the direction of the first rolling axis 32, that is to say an infeed of the second rolling tool 60 in the direction of the first rolling tool 40.
- the first arm 80 and the second arm 90 of the lever mechanism 82 are each formed from two cheek parts 80a and 80b or 90a and 90b, between which the feed bearing 70 and the rear pivot bearing 68 of the second tool shaft 50 are located, each of which is in turn via the bearing journal 89a and 89b are mounted on the machine frame 10 in the region of the base 20 of the head part.
- the cheek parts 90a and 90b are connected to one another by an axis 99, on which the cam follower 96 is rotatably mounted.
- the opposing forces acting on the infeed bearing 70 through the lever mechanism 82 are not introduced into the machine frame 10 in the region of the projection 22 of the head part 18, but rather outside of the projection 22 namely on the one hand through the pivot axis 88 into the base 20 of the head part 18 and on the other hand through the axis of rotation 98 mounted relative to the stand 16 in the stand 16 itself.
- a control designated as a whole by 120, which, as shown in FIG. 3, has a central processor 122 with which on the one hand a controller 124 for the feed drive 110 and on the other hand a controller 126 for the roller drive 42 can be controlled.
- a position transmitter 128 is also assigned to the feed drive 110 and a position transmitter 130 to the roller drive 42, which can also be queried via the central processor 122.
- the central processor 122 can also be set the desired speed for the rolling movement, that is to say for the rolling drive 42, via an external foot switch 132 and the infeed position via a manual control panel 134, for example shown in FIG. 4, by means of an encoder 138 which can be set manually via a rotary knob 136 of the second rolling tool 60.
- a switch field 140 is provided, which has a switch 142 for switching between two opposite directions of rotation of the rolling drive 42, a switch 144 for switching between fast running and slow running of the rolling drive 42 and two switches 146 and 148 for switching over from manual operation to learning mode or manual mode to operation of the delivery positions controlled by the controller 120, as explained in detail below.
- the central processor 122 is assigned a memory 150, in which data records 152 can be stored, in which individual roll axis positions R feed positions Z and movement direction information BR are assigned to the roll axis movement.
- These individual data records are stored in the memory 150 by the central processor 122, for example in the course of a learning mode, which can be set using the switch 146.
- an exemplary workpiece 64 is machined in a forming cycle, with foot switch 132 and switch 144 adjustable slow motion mode, the individual roll axis positions are approached at low speed and, in addition, the desired delivery positions are set manually with the transmitter 138, so that the central processor 122 is able, on the one hand, to position the roll axis positions and the delivery positions via the position transmitter 130 and the position transmitter 128 To record information about the direction of movement of the roll axis movement and to store it in the memory 150 as data records 152.
- the central processor 122 can now determine in the memory 150 through the data records 152 the delivery positions Z assigned to the respective roll axis positions R and the corresponding direction of movement BR, so that the central processor 122 is able to operate the delivery drive 110 in this way to control that the second rolling tool 60 is in the corresponding roll axis positions R in the stored feed positions Z and also the roller drive 42 runs in the desired direction of movement BR.
- Such a forming cycle is shown in FIG. 5, for example.
- the delivery position ZI assigned to the roll axis position RO is first approached from the delivery position ZO by delivery of the second rolling tool 60.
- the roll axis drive 42 is started by the central processor 122 and at the same time the feed drive 110 is controlled, so that the second roll tool 60 is in the feed position Z2 in the roll axis position R1.
- the roll axis drive 42 continues to be operated until the roll axis position R2.
- the feed drive 110 is actuated again, in such a way that the feed position Z3 is reached when the roll axis position R3 is reached.
- the roll axis drive 42 is actuated, up to a roll axis position R4 and starting when the roll axis position R4 is reached, the feed drive 110 is driven again in such a way that the delivery position Z4 is reached when the roll axis position R5 is reached.
- the central processor 122 simultaneously changes the direction of movement BRO of the roll axis drive so that it moves in the reverse direction BR1, again until the roll axis position R6 is reached.
- the feed drive 110 is actuated further so that the feed position Z5 is reached when the roll axis position R7 is reached.
- the roll axis position R7 When the roll axis position R7 is reached, the direction of movement BR1 and the direction of movement BRO are reversed and then the roll drive 42 is actuated up to a roll axis position R8. After reaching the roll axis position R8, the roll axis drive 42 is stopped and it the feed drive 110 is actuated in such a way that the second rolling tool 60 again passes into the feed position ZO.
- a speed limit mode is provided in addition to the forming mode, which deviates the speed of the roll axis movement changes from the maximum speed provided by the foot switch 132 when the central processor 122 recognizes on the basis of the known setting times of the infeed drive 110 that the infeed positions Z stored in the data records 152 cannot be reached with the corresponding roll axis positions.
- the central processor 122 reduces the speed of the roller drive 42 to such an extent that the speed of the infeed movement can follow the individual roller axis positions and the assignment corresponding to the data records 152 can thus be maintained.
- the central processor 122 preferably processes the data sets 152 in a forward-looking manner, that is to say that when a specific roll axis position RX has been reached, the central processor 122 already analyzes data sets 152 which correspond to future roll axis positions RX + ⁇ , so that they are already forward-looking It can be decided whether a reduction in the speed of the roller drive 42 deviating from the maximum speed specified by the foot switch 132 is necessary in order to determine the assignment the delivery positions Z to the roll axis positions R or to be able to reverse the direction of movement at a future roll axis position R, which inevitably requires a reduction in the speed of the roll axis movement to zero and subsequent acceleration.
- the speed limit mode is preferably designed such that the speed is limited in accordance with a fixed value specified for the central processor 122.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Powder Metallurgy (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Press Drives And Press Lines (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Golf Clubs (AREA)
- Winding Of Webs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10013801A DE10013801A1 (en) | 2000-03-20 | 2000-03-20 | Sheet metal forming machine |
DE10013801 | 2000-03-20 | ||
PCT/EP2001/002595 WO2001070427A1 (en) | 2000-03-20 | 2001-03-08 | Sheet forming machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1178864A1 true EP1178864A1 (en) | 2002-02-13 |
EP1178864B1 EP1178864B1 (en) | 2003-07-09 |
Family
ID=7635650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01917079A Expired - Lifetime EP1178864B1 (en) | 2000-03-20 | 2001-03-08 | Sheet forming machine |
Country Status (10)
Country | Link |
---|---|
US (1) | US6591651B2 (en) |
EP (1) | EP1178864B1 (en) |
JP (1) | JP2003527970A (en) |
AT (1) | ATE244612T1 (en) |
CA (1) | CA2374400A1 (en) |
DE (2) | DE10013801A1 (en) |
DK (1) | DK1178864T3 (en) |
ES (1) | ES2202284T3 (en) |
PT (1) | PT1178864E (en) |
WO (1) | WO2001070427A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1015773C2 (en) * | 2000-07-21 | 2002-01-22 | Johan Massue | Method and device for deforming a hollow workpiece. |
NL1016348C2 (en) | 2000-07-21 | 2002-01-22 | Johan Massue | Method and forming machine for deforming a hollow workpiece. |
DE10209154A1 (en) * | 2002-03-01 | 2003-09-11 | Sig Cantec Gmbh & Co Kg | Device for forming and / or folding can bodies |
ES2303934T5 (en) † | 2003-09-25 | 2012-05-31 | Mabi Ag | Sheet rolling machine for corrugated, flanged and similar sheet metal |
JP2007021547A (en) * | 2005-07-19 | 2007-02-01 | Asano:Kk | Apparatus for working pipe |
US7536889B1 (en) * | 2006-08-04 | 2009-05-26 | Mueller Thomas L | Rotary rolling machine |
TWI341554B (en) * | 2007-08-02 | 2011-05-01 | Enthone | Copper metallization of through silicon via |
CN101862778B (en) * | 2009-04-16 | 2012-05-30 | 杨岩顺 | Rotary folding type hydraulic channeling machine |
AT510949B1 (en) * | 2010-12-17 | 2015-07-15 | Trumpf Maschinen Austria Gmbh | CONTROL AND CONTROL DEVICE FOR A BEND PRESS |
SE535574C2 (en) | 2011-06-01 | 2012-10-02 | Jansson Lars | Sewing and folding machine |
DE102013105468B4 (en) * | 2013-05-28 | 2015-10-01 | Schuler Pressen Gmbh | Method for controlling a press with variable gear ratio |
US9333548B2 (en) * | 2013-08-12 | 2016-05-10 | Victaulic Company | Method and device for forming grooves in pipe elements |
WO2019092629A1 (en) * | 2017-11-10 | 2019-05-16 | Promau S.R.L. | Apparatus and method for support and controlled advancement of a metal sheet in a bending machine for obtaining cylindrical or truncated cone structures |
WO2023023318A1 (en) * | 2021-08-19 | 2023-02-23 | Milwaukee Electric Tool Corporation | Tool and method for roll grooving a workpiece |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE843536C (en) * | 1950-08-29 | 1952-07-10 | Theo Dr-Ing Krueckels | Beading machine |
DE1089714B (en) * | 1956-09-27 | 1960-09-29 | Karl Hundhausen | Machine for beading, chipping, cutting and bending sheet metal, pipes and profiles |
CH492489A (en) * | 1968-05-21 | 1970-06-30 | Chr Haeusler Fa | Flanging machine for flanging boiler bottoms |
NL173488C (en) * | 1981-03-13 | 1984-02-01 | Fontijne Bv Machine | RIM PROFILE. |
IT1178379B (en) * | 1983-08-04 | 1987-09-09 | Hurth Masch Zahnrad Carl | MACHINE TOOL TROLLEY POSITIONING DEVICE COMPARED TO A FIXED PART OF THE MACHINE |
IT1234881B (en) * | 1988-02-25 | 1992-06-02 | Danieli Off Mecc | CAGE WITH SWINGING ROLLERS WITH ANGLED AXES. |
US4869088A (en) * | 1988-07-05 | 1989-09-26 | Kazuo Kadotani | Ring shaping apparatus |
DE3936200C1 (en) * | 1989-10-31 | 1990-12-13 | Leifeld Gmbh & Co, 4730 Ahlen, De | |
EP0477752B1 (en) * | 1990-09-28 | 1995-03-29 | Promau S.R.L. | Programmable plate bending machine |
JPH11342440A (en) * | 1998-05-28 | 1999-12-14 | Nippon Seiko Kk | Tool controller |
-
2000
- 2000-03-20 DE DE10013801A patent/DE10013801A1/en not_active Ceased
-
2001
- 2001-03-08 DK DK01917079T patent/DK1178864T3/en active
- 2001-03-08 ES ES01917079T patent/ES2202284T3/en not_active Expired - Lifetime
- 2001-03-08 DE DE50100359T patent/DE50100359D1/en not_active Expired - Lifetime
- 2001-03-08 JP JP2001568611A patent/JP2003527970A/en active Pending
- 2001-03-08 PT PT01917079T patent/PT1178864E/en unknown
- 2001-03-08 EP EP01917079A patent/EP1178864B1/en not_active Expired - Lifetime
- 2001-03-08 AT AT01917079T patent/ATE244612T1/en active
- 2001-03-08 WO PCT/EP2001/002595 patent/WO2001070427A1/en active IP Right Grant
- 2001-03-08 CA CA002374400A patent/CA2374400A1/en not_active Abandoned
- 2001-11-19 US US09/996,031 patent/US6591651B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0170427A1 * |
Also Published As
Publication number | Publication date |
---|---|
ATE244612T1 (en) | 2003-07-15 |
DE10013801A1 (en) | 2001-10-18 |
PT1178864E (en) | 2003-11-28 |
EP1178864B1 (en) | 2003-07-09 |
DK1178864T3 (en) | 2003-10-27 |
US20020083750A1 (en) | 2002-07-04 |
JP2003527970A (en) | 2003-09-24 |
ES2202284T3 (en) | 2004-04-01 |
WO2001070427A1 (en) | 2001-09-27 |
DE50100359D1 (en) | 2003-08-14 |
US6591651B2 (en) | 2003-07-15 |
CA2374400A1 (en) | 2001-09-27 |
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