EP2498982A2 - Maschinenpresse - Google Patents
MaschinenpresseInfo
- Publication number
- EP2498982A2 EP2498982A2 EP10810753A EP10810753A EP2498982A2 EP 2498982 A2 EP2498982 A2 EP 2498982A2 EP 10810753 A EP10810753 A EP 10810753A EP 10810753 A EP10810753 A EP 10810753A EP 2498982 A2 EP2498982 A2 EP 2498982A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- piston
- hydraulic drive
- unit
- drive system
- 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
- 239000012530 fluid Substances 0.000 claims description 8
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/163—Control arrangements for fluid-driven presses for accumulator-driven presses
Definitions
- the present invention relates to a machine press having a machine structure, a lower tool carrier arranged in fixed spatial relation to the machine structure, an upper tool carrier which is linearly movable up and down by one operating stroke relative to the lower tool carrier, and an upper tool carrier acting on the upper tool carrier. the downward movement of the upper tool carrier causing hydraulic drive.
- Machine presses of the type specified above are known in various designs.
- a typical example of such machine presses are press brakes, as they are used for bending of sheets.
- the relevant prior art include JP 05293548 A, JP 56165520 A, JP 05015928 A, JP 2000343126 A, JP 2001113317 A, AT 008633 U1, EP 692327 B1, EP 1564414 A1, EP 103727 A1, DE 1906317, EP 1228822 Bl and EP 2036711 AI.
- a machine press according to the preamble of claim 1 is known from AT 008633 Ul.
- CONFIRMATION COPY work There are also aspects of job security, energy efficiency and other environmental considerations such as the use of environmentally sound equipment.
- the present invention has for its object to provide an indicated in the preamble of claim 1 machine press, which is characterized in the sense of the above-mentioned catalog of requirements by a particular practicality, with particular emphasis on a high reliability, processing and user friendliness and processing speed ie short process cycles, is laid.
- the hydraulic drive comprises at least one self-contained, closed hydraulic drive system, which in turn comprises at least one hydraulic cylinder-piston unit and at least one of these acting, supplied from a reservoir hydraulic unit.
- the at least one hydraulic drive system is connected between a rapid traverse, in which a first effective piston surface is acted on by the at least one hydraulic unit, and a press passage, in which the at least one hydraulic aggregate compared to the first effective piston area substantially larger second effective piston area acted upon, switchable.
- the hydraulic fluid of the at least one hydraulic drive system is stored in a reservoir forming pressure accumulator, which constantly impresses the entire hydraulic drive system concerned at least one above ambient pressure base pressure.
- the upper tool carrier is overcompensated by means of a spring device which includes the weight (the weight) of the upper tool carrier, the tool mounted thereon and the components of the hydraulic drive connected to the upper tool carrier and the closing force implied by the basic pressure prevailing in the at least one hydraulic drive system; biased in its upper end position.
- a particularly pronounced advantage of the machine press according to the invention over the prior art is the achievable very high operating speed, ie the minimum cycle times. This is achieved by a possible in the application of the invention substantial shortening of the dead or Idle times, ie those times when the upper tool carrier of the machine press performs inefficient idle strokes.
- the present invention uses, inter alia, the fact that in conventional Abkant- and other machine presses typically only a small proportion (eg 3mm) of the entire operating stroke (eg 40 -50mm) forms the forming of the workpiece pressing process, a much larger proportion of the operating stroke meanwhile represents an inefficient idle stroke.
- the machine press according to the invention distinguishing features is of particular importance that the at least one hydraulic drive system has a designed as a pressure accumulator reservoir for the hydraulic fluid, which is biased so that in the entire relevant hydraulic drive system always, ie at any place and at any time during the entire operating cycle 1 , a base pressure prevails, which is above the ambient pressure (standard conditions according to DIN).
- the upper tool carrier by means of a (permanently acting) spring means, the weight (weight) of the upper tool carrier, the attached thereto tool and the upper Tool carrier associated components of the hydraulic drive and overcompensated by the force prevailing in the prevailing at least one hydraulic drive system base pressure closing force in the sense of opening the machine press, that is biased in its upper end position.
- the opening of the machine press which in turn advantageously (see below) shortest paths and thus the lowest Let accelerating masses be realized.
- the above-described advantageous effects of the present invention set in typical applications already at a ambient pressure only moderately exceed the base pressure, for example, even if the base pressure in the relevant hydraulic drive system always, ie at any place and at any time during the entire operating cycle 'prevails, is about 1 bar above the ambient pressure.
- the accumulator is designed so that it still imposes a positive pressure of about 1 bar above ambient pressure with minimal filling, ie with fully lowered piston of the associated cylinder-piston unit, the hydraulic system.
- a preferred base pressure is about 1 to 2 bar above ambient pressure.
- the design of the pressure accumulator and its adaptation to the other components of the hydraulic drive system takes place in such a way that the maximum pressure in the pressure accumulator, which is established when the piston of the cylinder-piston unit is fully raised, and thus the maximum filling of the pressure accumulator, does not exceed about 5 bar, particularly preferably between about 4 and 5 bar.
- a first preferred embodiment of the invention is characterized in that the hydraulic drive comprises two hydraulic drive systems each having at least one cylinder-piston unit, wherein each of the two hydraulic drive systems comprises a separate hydraulic unit.
- the hydraulic drive comprises two hydraulic drive systems each having at least one cylinder-piston unit, wherein each of the two hydraulic drive systems comprises a separate hydraulic unit.
- the spring unit is integrated in at least one hydraulic cylinder-piston unit of the at least one hydraulic drive system. It is particularly preferably designed as a gas spring.
- the piston rod working space (filled with hydraulic fluid) of the relevant hydraulic cylinder-piston unit can be hydraulically connected to an external, correspondingly prestressed pressure-feeding device. rather - this has nothing to do with the above-described pressure accumulator in the hydraulic drive system - be connected.
- the (gas-filled) piston rod working space can communicate with internal gas-filled compensation chambers provided inside the cylinder-piston unit, which can be arranged in particular in the piston and / or in the housing, in order to optimally adapt the spring characteristic of the gas spring to the respective application.
- Such internal compensation spaces in turn allow the Design of particularly compact and lightweight drive units with minimal moving masses, because the axial length of the piston rod working space does not appreciably exceed the stroke of the drive unit
- the arrangement of the said compensation chamber in the piston at a suitable location can, moreover, contribute to a further reduction in weight.
- the area ratio between the second effective working surface and the first effective working surface is at least 3.
- a machine control is provided which is acted upon by a pressure sensor determining the working pressure in the at least one hydraulic drive system.
- the consideration of the existing in the respective individual pressing task in the hydraulic drive specific pressure conditions in the machine control allows a targeted individual influence on the hydraulic drive, not only to minimize the duration of each cycle 1 , but also in terms of the quality of the result workpiece forming.
- the off-center feed of the machine press with a workpiece control technology compensate.
- Yet another preferred embodiment of the machine press according to the invention is characterized in that in the at least one hydraulic drive system, the at least one hydraulic cylinder-piston unit and the associated hydraulic unit represent a complete drive with a common control, valve and line block to the the assigned accumulator is directly connected, so that no free pipe or hose lines exist.
- optimal structural and functional conditions can be achieved in many respects, namely with regard to the required installation space, the achievable efficiency, the installation effort, the reliability, the maintenance and service friendliness.
- This meets the needs of the user and interests as far as possible, especially in the case of such a hydraulic complete drive with a - completely closed by the execution of the reservoir for the hydraulic fluid pressure accumulator - hydraulic system only electrical interfaces for machine control must exist.
- the hydraulic unit is designed according to another preferred embodiment of the invention as a reversing unit, ie as an aggregate with reversible conveyor. More details are given below.
- the at least one hydraulic drive system comprises two (optionally differently configured) optionally switchable hydraulic pumps.
- the admission of the at least one hydraulic cylinder-piston unit in rapid traverse and in the press gear in a larger spectrum can be individually adapted to the specific pressing task, in particular by applying the first effective piston surface in rapid traverse with two parallel operated hydraulic pumps and loading the second effective piston area in the press gear with only one hydraulic pump.
- the at least one hydraulic drive system comprises two selectively switchable hydraulic cylinder-piston units, one of which at high speed by hydraulic connection of the two working spaces with each other - may be connected as a differential cylinder.
- the at least one hydraulic drive system comprises two selectively switchable hydraulic cylinder-piston units, one of which at high speed by hydraulic connection of the two working spaces with each other - may be connected as a differential cylinder.
- FIG. 1 in perspective, partially schematic
- FIG. 2 is a perspective view of a complete drive of the type used in the press brake shown in Fig. 1,
- FIG. 3 is a hydraulic circuit diagram of the drive units of the press brake shown in FIG. 1;
- Fig. 4 shows a modification of the hydraulic circuit diagram
- Fig. 5 shows the hydraulic circuit diagram of a modified
- Fig. 6 shows a modification of the hydraulic circuit diagram
- Fig. 7 shows the hydraulic circuit diagram and (schematically) the structural design of a cylinder-piston unit of yet another preferred embodiment of the invention.
- the machine press 1 shown in FIG. 1, designed as a press brake, has a machine structure 3 comprising two C-frames 2.
- a lower tool carrier 4 with a lower bending tool 5 is arranged on this.
- An upper tool carrier 7 equipped with an upper bending tool 6 and shown in its uppermost position in FIG. 1 is linearly movable up and down relative to the lower tool carrier 4 by an operating stroke H (double arrow A). Since the press brake shown in Fig. 1 to this extent corresponds to the well-known prior art, further explanations are unnecessary in this respect. This also applies to constructive details known as such, not shown here, eg with regard to the connection of the bending tools with the respective associated tool carrier.
- two hydraulic drive systems namely a left hydraulic drive system 8 and a right hydraulic drive system 9 are provided, which together form a hydraulic drive 10 acting on the upper tool carrier 7.
- the two hydraulic drive systems 8 and 9 are closed and self-sufficient, i. they have no hydraulic connection to each other. They are designed in the form of complete drives 11.
- Each of the two complete drives 11 embodied in mirror image form comprises in particular (compare also the hydraulic circuit diagram according to FIG. 3) a hydraulic cylinder-piston unit 12 with a cylinder 13 and an nem guided therein piston 14, the piston rod with the upper tool carrier 7 is fixedly connected, and a hydraulic cylinder-piston unit 12 acted upon hydraulic unit 15 with a through a
- Electric motor 16 driven reversible hydraulic pump 17 is housed as a built-in pump in a common control, valve and line block 18 which at the same time also forms a pump block and at the directly and the cylinder 13 and the electric motor 16 are flanged. Furthermore, a pressure accumulator 19 is flanged directly to the control, valve and line block 18, which forms a reservoir and reservoir for the hydraulic fluid of the hydraulic drive system 8 and in particular the hydraulic unit 15 supplies.
- the hydraulic system is hermetically sealed. In him, the hydraulic fluid is clamped and prevails constantly and everywhere at least one lying above the ambient pressure base pressure, which is impressed him through the pressure accumulator 19. By the hydraulic cylinder-piston unit 12, the pressure accumulator 19 and required, in Figs.
- valves 20 and a filter 33 for the hydraulic oil are flanged directly to the control, valve and line block 18 and the hydraulic pump housed in this, there are no said hydraulic components interconnecting free, ie outside the control, valve and line block 18 laid pipe or hose lines.
- the upper tool carrier 7 is by means of a spring device 21, the weight of the upper tool carrier 7, the attached thereto tool 6 and connected to the upper tool carrier components of the hydraulic drive 10, that is, the piston 14 of the two hydraulic drive systems 8 and 9, and by overcompensated for the base pressure prevailing in the two hydraulic drive systems, biased into its upper end position (FIG. 1).
- the spring device is integrated into the hydraulic cylinder-piston units 12 of the two hydraulic drive systems 8 and 9 such that in each case the piston rod working chamber 22 of the hydraulic cylinder-piston units 12 is hydraulically connected to an associated external pressure accumulator 23.
- the external pressure accumulator 23 is flanged directly to the associated cylinder 13, so that in turn no pressure accumulator 23 with the associated hydraulic cylinder-piston unit 12 connecting free pipe or hose exists.
- the spring unit 21 is designed as a gas spring.
- the hydraulic system of the spring means 21 forms a closed system, in particular by none of the two cylinder-piston units 12 is a hydraulic connection between the piston rod side working space 22 and the piston-side working space 24.
- the hydraulic drive 10 of the press brake is switchable between a rapid traverse and a press gear.
- the hydraulic unit 15 and the hydraulic cylinder-piston unit 12, in particular its auxiliary piston 26 and first effective piston surface 27, are coordinated so that at rapid traction - taking into account the weight of the movable components of the press brake and the closing force, the is adjusted by the provided via the pressure accumulator 19, prevailing in the piston working chamber 24 base pressure - the opposing force of the spring means 21 can be overcome.
- the valve 30 is switched so that the hydraulic unit 15 acts in parallel on the piston working space 24 and the auxiliary working space 28.
- the delivery of the hydraulic unit 15 is shut down and stopped so that the upper tool carrier stops.
- the tool then stops for a short time before the so-called "decompression stroke” begins, ie the slow, controlled lifting of the upper tool and opening of the press over a small stroke (eg 2-3 mm) by reversing the direction of the re-adjustable hydraulic unit.
- valve 30 and the Nachsaugven il 32 are reversed, so that adjusts in the piston working chamber 24 of the pressure accumulator 19 impressed on the system base pressure and the piston 14 moves under the action of the spring means 21.
- the retraction of the piston 14 takes place in the Rapid traverse controlled (braked) by the auxiliary work- 28 further on the opposite with the
- the modified hydraulic system illustrated in Fig. 4 differs from that of Fig. 3 substantially by another embodiment of the hydraulic power unit 15 '. Namely, this comprises a fixed displacement pump 35, i. a continuously pumping pump.
- a pressure limiting valve 36 is provided on the pressure side, which controls the flow rate beyond the demand existing in the respective operating point.
- a 3/3 -Wegevantil 37 is disposed between the hydraulic unit 15 'and the hydraulic cylinder-piston unit 12. This can take a closed position and an open position in addition to the zero position shown in which the three ports are locked against each other. In the closing position, depending on the position of the valve 30, either only the auxiliary working chamber 28 (rapid traverse) or else this and, in addition, the piston working chamber 24 (pressing gear) are acted upon by the hydraulic unit 15 '. In the open position, the cylinder port 38 is connected to the pressure accumulator 19. The above statements apply similarly to the end of the press gear and the opening of the press.
- the directional control valve 37 At the end of the closing movement, ie typically when the upper tool carrier 7 reaches a predetermined position, the directional control valve 37 is reversed to its zero position (blocking position), so that the upper tool carrier stops. In order to initiate the "decompression stroke", the directional control valve 37 is reversed to its open position, wherein the pressure reduction in both the piston working space 24 and in the auxiliary working space 28 and the slow, controlled lifting of the upper tool and opening of the press controlled via a Discharge edge takes place. At the end of the decompression stroke, the valve 30 and the Nachsaugventil 32 are reversed, so that in the piston working space 24 of the pressure accumulator 19 impressed on the system base pressure adjusts and the piston 14 retracts under the action of the spring means 21. The retraction of the piston 14 is carried out in rapid traverse controlled (braked) by the auxiliary working space 28 via the directional control valve 37, namely on the discharge edge kontrol- Liert and controlled in the accumulator 19 is emptied.
- Shown in Fig. 4 also has a prevailing in the hydraulic cylinder-piston unit 12 working pressure constantly receiving pressure sensor 39.
- the pressure signal is processed in the machine control S. It can be used in particular as auxiliary control variable in the sense that the signal of the independently operating displacement encoder is checked for its plausibility and possibly modified for further processing in the controller. The latter comes especially into consideration when the displacement measurement signal (eg in the case of a stuck component and / or excessive static friction) indicates no movement, but the pressure signal indicates such a working pressure within the hydraulic system that movement of the upper tool carrier would actually be expected.
- the displacement measurement signal eg in the case of a stuck component and / or excessive static friction
- such exceptional operating conditions can be detected and can be influenced on the machine control, for example, to prevent the safety at work threatening sudden breakage of the upper tool carrier with further pressure increase.
- the control can be optimized in the sense of the most accurate compliance with a given speed profile for the upper tool carrier, which can help , the cycle time - in particular by minimizing the transitional periods - to further shorten.
- the hydraulic system according to the hydraulic circuit diagram illustrated in FIG. 5 differs from that according to FIG. 4 in particular in that it comprises two structurally separate hydraulic cylinder-piston units 12'A and 12'B, but whose pistons 14 'are both connected to the upper one Tool carrier 7 are connected and coupled together in this way.
- the two hydraulic cylinder-piston units 12'A and 12 1 B is optionally, via the valve 30 'reversible, only one acted upon by the hydraulic unit 15', namely the hydraulic cylinder-piston unit 12 'shown on the right in the drawing. A, or both cylinder-piston units 12'A and 12 'B simultaneously and in parallel.
- the hydraulic cylinder-piston unit 12'A In rapid traverse alone, the hydraulic cylinder-piston unit 12'A is acted upon, so that the first effective piston surface 45 is identical to the end face of the piston 14'A.
- the Kolbenarbeitsraum 24 'B of the other hydraulic cylinder-piston unit 12'B which has no connection to the associated, in turn acted solely by the spring means 21 piston rod working chamber 22' B, fills via the intake valve 32.
- the piston working chamber 24 'A and the piston rod working space 22 ⁇ of the hydraulic cylinder-piston unit 12'A via the valve 40; In this switching position of the valve 40, the hydraulic cylinder-piston unit 12'A acts as a differential cylinder.
- FIG. 5 Also shown in FIG. 5 is a further pressure sensor 41 constantly receiving the pump pressure prevailing on the pressure side of the hydraulic unit 15 '.
- the pressure signal of this pressure sensor is also processed in a common machine control for both hydraulic drive systems.
- the modified hydraulic system illustrated in Fig. 6 differs substantially from that of Fig. 5 by a double-pump hydraulic unit 15 '' While the pressure side of one pump 17 '' is constantly connected to the pressure port 42 of the directional control valve 37, the pressure side of the another pump 17 “B connected via the valve 43 to the pressure accumulator 19 and the pump 17" B are thus switched to circulation promotion.
- a double-pump hydraulic unit 15 '' While the pressure side of one pump 17 '' is constantly connected to the pressure port 42 of the directional control valve 37, the pressure side of the another pump 17 “B connected via the valve 43 to the pressure accumulator 19 and the pump 17" B are thus switched to circulation promotion.
- In rapid traverse of the hydraulic drive promote due to appropriate switching position of the valve 43 - both pumps 17 "A and 17" B to the hydraulic cylinder-piston unit 12 'A.
- the piston rod working chamber 22 is filled with a spring gas, the gas filling being under a biasing force via a corresponding filling pressure.
- the seals 51 schematically illustrated on the piston 14, sealingly abut against the inner surface 50 of the cylinder 13 are designed in a manner known as such, with a view to delimiting a gas space from the piston-side hydraulic working space 24.
- With the piston rod working space 22 are via respective channels 52 and 53 two - each annular running - compensation spaces fluidly in communication, namely a zy linder Weger first compensation chamber 54 and a piston-side second compensation chamber 55.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Control Of Presses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009052531A DE102009052531A1 (de) | 2009-11-11 | 2009-11-11 | Maschinenpresse |
PCT/EP2010/006842 WO2011057773A2 (de) | 2009-11-11 | 2010-11-10 | Maschinenpresse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2498982A2 true EP2498982A2 (de) | 2012-09-19 |
EP2498982B1 EP2498982B1 (de) | 2015-02-25 |
Family
ID=43852960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10810753.3A Active EP2498982B1 (de) | 2009-11-11 | 2010-11-10 | Maschinenpresse |
Country Status (9)
Country | Link |
---|---|
US (1) | US9044913B2 (de) |
EP (1) | EP2498982B1 (de) |
JP (1) | JP5576939B2 (de) |
CN (1) | CN102725135B (de) |
DE (1) | DE102009052531A1 (de) |
DK (1) | DK2498982T3 (de) |
ES (1) | ES2537627T3 (de) |
PT (1) | PT2498982E (de) |
WO (1) | WO2011057773A2 (de) |
Families Citing this family (25)
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DE102011114241B4 (de) * | 2011-06-09 | 2014-09-04 | Sms Meer Gmbh | Hydraulische Antriebsvorrichtung, Hydraulische Endstufe eines hydraulischen Servo-Regelventils, Servo-Regelventil und Pulverpresse |
DE102012015118B3 (de) | 2012-04-17 | 2013-10-10 | Hoerbiger Automatisierungstechnik Holding Gmbh | Maschinenpresse |
DE102012013098B4 (de) | 2012-06-30 | 2014-08-07 | Hoerbiger Automatisierungstechnik Holding Gmbh | Maschinenpresse |
CN102941683A (zh) * | 2012-11-18 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | 大型液压机泄压系统 |
DE102012025134A1 (de) * | 2012-12-21 | 2014-06-26 | Uniflex-Hydraulik Gmbh | Umformpresse |
RU2521757C1 (ru) * | 2013-03-22 | 2014-07-10 | Министерство образования и науки РФ Федеральное государственное бюджетное общеобразовательное учреждение высшего профессионального образования "Норильский индустриальный институт" | Гидравлический пресс |
CN103522575B (zh) * | 2013-10-22 | 2015-05-13 | 宁波汇众粉末机械制造有限公司 | 机械式粉末成形机及定量供油系统 |
DE102014002888B4 (de) * | 2014-03-05 | 2016-07-07 | Schuler Pressen Gmbh | Schmiedehammer und Verfahren zum Betrieb eines Schmiedehammers |
DE102014005352B4 (de) | 2014-04-11 | 2016-03-10 | Hoerbiger Automatisierungstechnik Holding Gmbh | Maschinenpresse |
JP5769859B1 (ja) * | 2014-11-03 | 2015-08-26 | 日本エアロフォージ株式会社 | 液圧鍛造プレス装置及びその制御方法 |
DE102015211796A1 (de) * | 2015-06-25 | 2016-12-29 | Robert Bosch Gmbh | Hydraulisches System zur Druckmittelversorgung eines Hydrozylinders mit drei getrennten druckmittelbeaufschlagbaren Wirkflächen und Verfahren zum Betreiben des hydraulischen Systems |
WO2017041848A1 (de) * | 2015-09-10 | 2017-03-16 | Festo Ag & Co. Kg | Fluidsystem und prozessventil |
CN105251806A (zh) * | 2015-11-13 | 2016-01-20 | 武汉工程大学 | 配气阀板矫平机 |
DE102016205973A1 (de) * | 2016-04-11 | 2017-10-12 | Sms Group Gmbh | Hydraulikzylinder |
DE102016118853B3 (de) | 2016-10-05 | 2017-10-26 | Hoerbiger Automatisierungstechnik Holding Gmbh | Elektrohydraulische Antriebseinheit |
DE102016118854A1 (de) | 2016-10-05 | 2018-04-05 | Hoerbiger Automatisierungstechnik Holding Gmbh | Elektrohydraulische Antriebseinheit |
EP3311961B9 (de) * | 2016-10-20 | 2021-11-24 | Bucher Hydraulics Erding GmbH | Roboter sowie lastausgleichsanordnung für einen roboter |
DE102017103091B4 (de) | 2017-02-15 | 2019-05-16 | Hoerbiger Automatisierungstechnik Holding Gmbh | Maschinenpresse |
DE102017106449A1 (de) | 2017-03-24 | 2018-09-27 | Böllhoff Verbindungstechnik GmbH | Mehrstufige Fügevorrichtung und Fügeverfahren dafür |
DE102018108415A1 (de) * | 2018-04-10 | 2019-10-10 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Verfahren zum Betrieb eines hydraulischen Systems |
US20220097117A1 (en) * | 2018-10-01 | 2022-03-31 | Salvagnini Italia S.P.A. | Sheet metal working machine |
DE102018218113A1 (de) * | 2018-10-23 | 2020-04-23 | Robert Bosch Gmbh | Hydraulische Steueranordnung |
CN110332154B (zh) * | 2019-06-28 | 2021-01-26 | 武汉理工大学 | 一种多蓄能器高性能伺服油压机液压系统 |
DE102021200096A1 (de) * | 2021-01-08 | 2022-07-14 | Robert Bosch Gesellschaft mit beschränkter Haftung | Hydraulische Antriebseinheit für eine Presse |
CN115255097A (zh) * | 2022-08-16 | 2022-11-01 | 曼弗莱德智能制造(江苏)有限公司 | 一种冲压模具用的节能型液压机及节能方法 |
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DE9207905U1 (de) * | 1992-03-31 | 1992-08-20 | Pahnke Engineering Gmbh & Co Kg, 4000 Duesseldorf, De | |
JP3190417B2 (ja) | 1992-04-17 | 2001-07-23 | 株式会社アマダ | プレスブレーキ |
JPH07155999A (ja) * | 1993-09-02 | 1995-06-20 | Maschinenfabrik Mueller Weingarten Ag | 液圧プレスの駆動を制御するための方法及び装置 |
ES2113699T3 (es) | 1994-07-01 | 1998-05-01 | Mueller Weingarten Maschf | Regulacion de un accionamiento de una prensa hidraulica. |
DE4436666A1 (de) * | 1994-10-13 | 1996-04-18 | Rexroth Mannesmann Gmbh | Hydraulisches Antriebssystem für eine Presse |
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JP3782710B2 (ja) * | 2001-11-02 | 2006-06-07 | 日邦興産株式会社 | 油圧プレス装置 |
DE10329067A1 (de) | 2002-08-02 | 2004-02-12 | Bosch Rexroth Ag | Hydraulischer Antrieb |
DE102004024354A1 (de) * | 2003-05-16 | 2005-01-05 | Bosch Rexroth Ag | Antrieb für eine Stanz- oder Umformmaschine |
DE102004027849A1 (de) * | 2004-06-08 | 2006-01-05 | Bosch Rexroth Aktiengesellschaft | Antriebseinheit |
AT8633U1 (de) | 2005-09-19 | 2006-10-15 | Hoerbiger Automatisierungstech | Hydraulikantriebseinheit |
DE102006025463B4 (de) * | 2005-12-03 | 2007-12-20 | Carina Wanzke | Multifunktionszylinder mit Kolben hydraulisch angetrieben für Pressen |
AT505724B1 (de) | 2007-09-12 | 2010-06-15 | Trumpf Maschinen Austria Gmbh | Antriebsvorrichtung für eine biegepresse |
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2009
- 2009-11-11 DE DE102009052531A patent/DE102009052531A1/de not_active Ceased
-
2010
- 2010-11-10 CN CN201080061188.0A patent/CN102725135B/zh active Active
- 2010-11-10 JP JP2012538235A patent/JP5576939B2/ja active Active
- 2010-11-10 EP EP10810753.3A patent/EP2498982B1/de active Active
- 2010-11-10 DK DK10810753.3T patent/DK2498982T3/en active
- 2010-11-10 WO PCT/EP2010/006842 patent/WO2011057773A2/de active Application Filing
- 2010-11-10 ES ES10810753.3T patent/ES2537627T3/es active Active
- 2010-11-10 PT PT108107533T patent/PT2498982E/pt unknown
-
2012
- 2012-05-09 US US13/467,474 patent/US9044913B2/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2011057773A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN102725135B (zh) | 2015-05-13 |
US20120272840A1 (en) | 2012-11-01 |
PT2498982E (pt) | 2015-06-01 |
JP5576939B2 (ja) | 2014-08-20 |
DK2498982T3 (en) | 2015-05-11 |
DE102009052531A1 (de) | 2011-05-12 |
US9044913B2 (en) | 2015-06-02 |
WO2011057773A3 (de) | 2011-07-14 |
JP2013510719A (ja) | 2013-03-28 |
WO2011057773A2 (de) | 2011-05-19 |
ES2537627T3 (es) | 2015-06-10 |
CN102725135A (zh) | 2012-10-10 |
EP2498982B1 (de) | 2015-02-25 |
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