EP3440520A1 - Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides - Google Patents

Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides

Info

Publication number
EP3440520A1
EP3440520A1 EP17727473.5A EP17727473A EP3440520A1 EP 3440520 A1 EP3440520 A1 EP 3440520A1 EP 17727473 A EP17727473 A EP 17727473A EP 3440520 A1 EP3440520 A1 EP 3440520A1
Authority
EP
European Patent Office
Prior art keywords
plunger
pressure
force
point
dependent
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.)
Pending
Application number
EP17727473.5A
Other languages
German (de)
English (en)
Inventor
Uwe Darr
Bernd Moritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by L Schuler GmbH filed Critical L Schuler GmbH
Publication of EP3440520A1 publication Critical patent/EP3440520A1/fr
Pending legal-status Critical Current

Links

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
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B30B15/0041—Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/26—Programme control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/28—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks the cam, crank, or eccentric being disposed below the lower platen or table and operating to pull down the upper platen or slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
    • B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/14—Control arrangements for mechanically-driven presses
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/182—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37399—Pressure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41273—Hydraulic

Definitions

  • the invention relates to a method for controlling the
  • the plunger movement is interrupted in time with the upper and lower tool closed at the lower reversal point during a holding time for curing of the molded part.
  • the pressure can be adjusted during the rest so that a faster and optimal heat transfer between the hot-pressed molded part and the closed provided with cooling tools.
  • Controlled time-dependent, disturbances in the sequence of motion can be the risk of asynchronism in particular with
  • each molding-specific tool of the multiple moldings can be acted upon with a separately optimizable contact pressure to a high heat transfer from the moldings in the
  • JP 2012-040568 A method for the production of hot-pressed molded parts is described with a mechanical press, the plunger is driven by a servo motor over several pressure points. During a standstill phase of the upper and lower tool closed at the lower reversal point, the curing of the molded part takes place.
  • Thermoforming press with a crank mechanism for driving the plunger whose lubricating bearings are designed in particular in the area during standstill of the plunger in the lower reversal point under load in a hydrostatic mode.
  • This solution is intended to ensure that the lubrication conditions are maintained in the crank mechanism during the standstill phase under the largest load so as to avoid jamming of the press.
  • a device for moving a plunger of a press in which for movement along a first predetermined path, a first lifting element in the form of a spindle-spindle nut unit and for movement along a second path a hydraulically movable second
  • Lifting element is provided with a rotatably guided in a cylinder piston.
  • WO 2013/026137 AI is a mechanical press for the production of hot-pressed moldings with a center or two juxtaposed pressure points
  • WO 2008/071154 A2 describes a method and a
  • the invention is based on the object with little effort, a method and an apparatus for controlling the
  • thermoforming presses in particular thermoforming presses, in which the
  • thermal influencing variables in particular in the production of partially different multiple moldings for optimum heat transfer from the moldings in the cooled tools improved, increased productivity while reducing energy consumption and the
  • the object is achieved by a method for
  • the method is carried out with a device having the features of the respective claim 10-15.
  • the gist of the invention is that, in a multi-point mechanical hybrid press characterized by high productivity with reduced energy consumption, each pressure point or each pressure point group of the plunger associated servo-electric drive as a main function via a Leitwellenfunktion with the integrated drives in the press as a secondary function in the form of hydraulic pressure pad in the pressure points of the plunger drive and / or as
  • Machine or tool cushion acting process cushion so in combinatorial interaction that on the one hand with reduced drive power, a high closing force of
  • Pressure points of the plunger and / or the process cushion before, during and after the Zuhaltephase the plunger in the range of the lower reversal point away and force-dependent for active immersion depth and tilt control in combination with the servo-electric main drive are independently controllable.
  • these can each be arranged in the table or ram of the press.
  • these can each be arranged in the upper or lower tool.
  • All process cushions have in common that they can each be driven hydraulically or servo-electrically.
  • Forming process directly acting process cushion can be used in an advantageous combinatorial interaction.
  • a "control” is a process in which a variable variable is continuously recorded as a controlled variable, compared with another variable variable as a reference variable and influenced for an adjustment to the reference variable
  • Control variable in the path of action of the control loop is continuously influenced itself, or there is no effect sequence and / or no control loop before.
  • the control is free of a closed action sequence and / or free of a control loop, so that there is no feedback, the control is a control.
  • the control also includes a simple control. The same applies to "regulate” and "regulated”, which accordingly also include “control” and "controlled”.
  • Device are the main drive for the plunger movement respectively the pressure points of the plunger associated servo motors with the hydraulic pressure pad in the pressure points in combinatorial interaction, wherein the active
  • Immersion depth and tilt control of the plunger "controlled, static" expires thermoformed different multiple-pressed parts, it may be advantageous to achieve optimum heat transfer to control each or each pair of tool segments with a separately optimized contact pressure.
  • the differentiated and variable pressure is thereby by the force control of the hydraulic pressure pad in the
  • Presetting of the setpoint position curves "with correction" can be compensated or influenced.
  • the asymmetric suspension paths are either below based on the part-specific eccentric load
  • the first empirically generated in analogy to the first embodiment signal quantities for determining the
  • Pressure point-dependent force setpoints are summed in a first control loop with pressure point-dependent force correction values, on the one hand by means of actual force feedback and on the other hand by means of actual temperature feedback by
  • Hydraulic pressure pad controlled dynamically.
  • Tappet position measuring devices are determined in the hot forming process.
  • a summation is made with the actual temperature feedback determined from dynamic measurements in the hot forming process. From this generated sum value, the positions of the pressure points are dynamically regulated, whereby the tilting of the plunger, which occurs more or less as a result of off-center loading, can be compensated or influenced.
  • Device are the main drive for the plunger movement respectively the pressure points of the plunger associated servomotors with the hydraulic process cushion for variable
  • the differentiated and variable contact pressure is realized by the force control of the hydraulic process cushions in the press or in the tools whose nominal force values can be generated either empirically or by means of measurement.
  • the result of off-center loading more or less entering tilt of the plunger and thus the tools can by means of position control of each pressure point or
  • Presetting the desired position curves "with correction" in analogy to the first embodiment can be compensated or influenced.
  • pad-dependent force correction values the On the one hand be determined by means of actual force feedback and on the other hand by means of actual temperature feedback by dynamic measurements in the hot forming process.
  • the process cushions are dynamically controlled from this generated sum value.
  • dynamic measurements of the ram position measuring devices in the hot forming process can be determined.
  • a summation is made with the actual temperature feedback determined from dynamic measurements in the hot forming process. From this generated sum value, the positions of the pressure points are dynamically controlled.
  • a sixth advantageous embodiment of the method and the device are the pressure points of the plunger associated hydraulic pressure pad in an analogous manner to the fifth embodiment with the hydraulic process cushion in combinatorial interaction, wherein the active
  • a third control loop the calculated desired position profiles of the pressure points of the plunger with the dynamic measurements in the hot forming process summed actual temperature feedback for the time-dependent termination of the guard phase. From this generated sum value, the positions of the pressure points are dynamically controlled.
  • Fig. 6 block diagram of the control technology
  • Fig. 7 Basic structure of a mechanical Multi-point servo-hybrid press of the third and fourth embodiment
  • Fig. 15 block diagram of the control technology
  • Fig. 1 shows the schematic structure of a mechanical
  • Multi-point servo hybrid press according to first and second
  • the drive 3 of the vertically movable plunger 4 for receiving the upper tool 5 is arranged.
  • the drive 3 of the plunger 4 via the arranged in the figure right and left pressure point groups 6, 7 and 8, 9, wherein in the two-dimensional drawing, only the pressure points 6, 8 can be seen.
  • the pressure points 7, 9 not visible in the figure lie three-dimensionally in each case in the depth behind the pressure points 6, 8, so that the multi-point servo-hybrid press in this case consists of four pressure points, each by means of a tie rod 10 with a to an eccentric 11 belonging connecting rod 12 are operatively connected.
  • each connecting rod 12.1, 12.2 and 12.3, 12.4 a central eccentric wheel 11 per side operatively connected via two connecting rods 12.1, 12.2 and 12.3, 12.4 together with the pressure points 6 and 7 and 8 and 9, wherein the eccentric 11 is driven via an intermediate gear by a servo motor 13.1 and 13.2 ,
  • Eccentric 11.1, 11.2 and 11.3, 11.4 assigned, each eccentric 11.1, 11.2 and 11.3, 11.4 is driven in each case via an intermediate gear of a separate servo motor 13.1, 13.3 and 13.2, 13.4.
  • the pressure points 6 to 9, in addition to an adjusting gear 14 for adjusting the height adjustment of the plunger 4 each have a hydraulic pressure pad 15 that according to the device features of claim 10 and 11 in combinatorial interaction with the electric servomotors 13 the
  • Controllable pressure variability a high and variable closing force of the plunger 4 before and during the Standstill and Zuhaltephase for forming and curing the thermoformed pressing member 16 and a low opening force of the plunger 4 are achieved after the Zuhaltephase.
  • the possibility of the variable closing force is used during the closing phase
  • each tool segment 17.1, 17.2 is subjected to a separately optimizable contact pressure to allow a high heat transfer from the moldings in the cooled tools for a short cooling time.
  • the tilting and / or immersion depth of the plunger 4 in the plane can be influenced from right to left.
  • the NC control device 18 generates the guide variable signals 55 for the servo motors 13 with associated inverter 21 to the main drive of the servo-hybrid press and the guide size signals 51 for the hydraulic pressure pad 15.1, 15.2, 15.3, 15.4 to the pressure point-dependent force control.
  • the position of the plunger 4 is by means of the on the press table. 1
  • first and second ram position measuring device 22.1, (22.2), 22.3, (22.4) detects whose
  • Pressure pad 50 is linked, on the one hand, to the sequence control 46 and, on the other hand, to the functional unit for calculating the pressure-point-dependent force / setpoint value curves 48a. From the functional units 48a, 50, 52b, 54 specific data from the memory 46 associated memory for machine and tool data 47 are retrievable. The functional units 48a and 52b are also coordinated by the sequencer 46 and are additionally linked with each other by signal technology. The empirically or by means of measurement-generated signal quantities for determining the pressure-point-dependent force setpoint values 49 reach the functional unit for calculating the pressure-point-dependent force setpoint curves 48a. The signal quantities for determining the desired position profiles for the pressure points of the plunger 53 arrive in the functional unit 52b.
  • the functional unit for force control of the hydraulic pressure pad 50 respectively supplies the guide variable signals 51 for the control of the hydraulic pressure pads 15.1 to 15.4.
  • the functional unit for positioning control of the pressure points of the plunger 54 respectively supplies the reference variable signals 55 for the converters 21.1 to 21.4 for controlling the
  • the machine-specific stiffness values are stored in the functional unit 47.
  • Preparation phase 25 These can be done by manual
  • optimal contact pressure curve for a high heat transfer from the pressing parts 16 are generated in the cooled tools 17 at a short cooling time.
  • the asymmetrical suspension values of the adjacent pressure points 6, 7 and 8, 9 are calculated on the basis of the parameters stored in steps VI and V3.
  • the asymmetrical suspension paths can be determined by measuring the forces or the suspension during a practical learning stroke.
  • the cyclical sequence begins with the first method step 29, in that the movement of the plunger 4 is prevented from the above-generated pressure-point-specific position cams 57 "with correction" from the upper one
  • Process step 30 serve the force setpoint values generated in the third preparation step 25 for acting upon the hydraulic pressure pads 15. At the end of the closing phase for the tempered cooling of the thermoformed pressed parts 16, in the third method step 31 the control of
  • hydraulic pressure pad 15 switching to the second force setpoint for a pressure relief of the hydraulic pressure pad 15 in order to achieve a reduced opening force before the start of the run-up of the plunger 4.
  • step 32a is by advantageous
  • Pendulum operation with reversal of movement in the lower reversing point reversing run-up of the plunger 4 in the starting position of the upper reversal point allows and controlled in the hydraulic pressure pad 15 switching to a first force setpoint.
  • the position of the pressure points 6, 7 and 8, 9, the force in the hydraulic pressure pad 15.1, 15.2 and 15.3, 15.4 and the tilting position of the plunger 4 in uncompensated and compensated form is as a time or crank angle-dependent course
  • the position control 145 is performed with electronic position cam 57, wherein the position of the pressure points 6, 7 and 8, 9 of the position cam follow 57 and thereby the downward movement of the plunger 4th
  • the hydraulic pressure pad 15 are set to the first force setpoint 39.
  • Force curve for the tempered cooling of the pressed parts 16 is optimally adjusted so that a high heat transfer is made possible by the pressing parts 16 in the cooled mold segments 17 for a short cooling time.
  • Tool segment 17.2 be used advantageously.
  • the from the Force difference resulting asymmetric suspension of the press would have an uncompensated course of the tilting position 43 of the
  • Pestle 4 as a prerequisite for an ideal contact
  • Opening force favors After reaching the upper reversal position of the plunger 4 with deferring to the first force setpoint 39, the process repeats cyclically with the first phase 36 described above.
  • the force control in the hydraulic pressure pad of the Pressure points in combination with the influence of tilting position and depth of immersion of the plunger are each made dynamically.
  • the first four preparation phases 23 to 26 correspond to the sequence of the first embodiment.
  • Method step 71 is the cyclical sequence in which the movement of the plunger 4 follows the previously generated pressure-point-specific position cam discs 57 with correction starting values from the upper reversal point to the lower reversal point.
  • Preparation step 25 generated force setpoints for
  • the process-force-actual course 59 of each tool segment 17 is detected in the third method step 72 on the one hand by means of force sensor 60 and the process temperature-actual course 61 by means of temperature sensor 62. These are used to calculate a force correction value 63 together with the pressure point-dependent force-desired value curve in the fourth
  • Step 73 a force sum 64 is formed. With this sum value 64, in the fifth method step 74, the corrected pressure setpoint values 65 for the servo valves 66 become for controlling the force control loop of the hydraulic
  • Pressure pad 15 is formed.
  • the pressure-point-dependent current-actual curves are detected by means of the plunger-position measuring devices 22 during the closing phase 35 in the sixth method step 75, whose measured-size signals 56 are used to calculate the
  • step 76 is from the pressure point-dependent
  • Position offset 67 and the pressure-point-dependent desired position curve with correction initial value a position sum 68 formed.
  • the sequence repeats cyclically with the first method step 71 described above.
  • Sequence control 46 and on the other hand with the functional unit for calculating the desired position curves for the pressure points of the plunger with correction initial values 80 via the position sum value 68 is linked.
  • the further input variables of the position sum value 68 come from the functional unit 82 for calculating the pressure point-dependent position offset 67 and from the measured variable signals for the process temperature-actual courses 61.
  • hydraulic pressure pad 50.1 is on the one hand with the
  • the further input variable of the force sum value 64a comes from the functional unit 81 for calculating the pressure-point-dependent force correction values 63.
  • the functional units 48a, 50.1, 80, 54 specific data from the memory 46 associated memory for machine and tool data 47 can be retrieved.
  • the functional units 48a and 80 are also coordinated by the sequencer 46 and are additionally linked to one another by signal technology.
  • the initially empirically generated signal quantities for determining the pressure-point-dependent force setpoint values 49 reach the functional unit for calculating the
  • Output variables with the from the actual power feedback 59 and the actual temperature feedback 61 in the functional unit 81 calculated force correction values 63 in the force sum value 64a are summed.
  • the measured variable signals 56 generated by the plunger position measuring devices 22 enter the functional unit 82 for calculating the pressure-point-dependent position offset 67.
  • the functional unit 50.1 for force control of the hydraulic pressure pads 15 supplies the guide variable signals 51 for the control of the hydraulic pressure pads 15, respectively.
  • Fig. 7 shows the schematic structure of a mechanical
  • Multi-point servo hybrid press according to third and fourth
  • the multipoint servo-hybrid press as a secondary drive in the form of a process pad contains the tool 2 directly
  • Claims 12 and 13 each in combinatorial interaction with the electric servomotors 13, the control and
  • the hydraulic table cushions 90 can as
  • Multipoint table cushion be formed, with two adjacent table cushions 90.1, 90.3 or respectively four adjacent and behind each other table cushions 90.1, 90.3 and 90.2, 90.4 can be used.
  • Pressure variability reaches a high and variable closing force of the tools before and during the Zuhaltephase for forming and curing of the thermoformed pressing part 16 and a low opening force of the plunger 4 after the Zuhaltephase.
  • thermoformed pressing parts 16 in combinatorial interaction with the electric servomotors 13 reference is made to the description of the embodiment of FIG.
  • the control-technical device features of the NC control device 18 for the third embodiment according to claim 12 are shown as a block diagram.
  • the first and second preparation phase 23, 24 corresponds to the sequence of the first and second embodiment according to FIG. 3.
  • the generation of the cushion-dependent force values for the hydraulic table cushions 90 specific to the multiple press parts 16. 1, 16. 2 follows.
  • the analogous sequence according to FIG. 3 follows until the second method step 95.
  • the further input variable of the force sum value 64 comes from the functional unit 93 for calculating the cushion-dependent Force correction values 63.
  • the hydraulic table cushion power control unit 92 respectively supplies the guide size signals 51 for the control of the hydraulic table cushions 90.
  • the tilting influenced by asymmetric loading and / or
  • Immersion depth of the plunger is compensated or specifically influenced by acting on the independently controllable and controllable servomotors 13 with a mutually different path profile, is effected in the fifth and sixth embodiment, the influence of the tilting position by the hydraulic pressure pad in the plunger drive.
  • the sequence control 46 coordinates the one hand
  • Fig. 13a, 13b the proposed method for the fifth advantageous embodiment in the form of a sequence of the type "controlled, static" according to claim 8 with pillow-dependent force control of the tool segments 17 and tilt compensation of the plunger 4 by the force control of the hydraulic pressure pad 15 is shown.
  • Pressure pad 15 each done dynamically.
  • Process temperature-actual course 61 detected. These serve to calculate a cushion-dependent force correction value 63, with which a force sum value 64b is formed in the fourth method step 73 together with the cushion-dependent force desired value curve.
  • the corrected pressure set values 102 for the servo valves 103 for controlling the force control loop of the hydraulic table cushions 90 are formed.
  • the pressure-point-dependent suspension-actual curves are detected by means of the plunger position measuring devices 22, the measured variable signals 56 for calculating the
  • pressure point-dependent force correction values 63 serve. After summation of the pressure-point-dependent force, setpoint and force correction values in the seventh method step 73, the calculation and output of desired pressure values 65 for the servo valves 66 for force control of the hydraulic pressure pads 15 takes place in the eighth method step 74.
  • the end of the holding phase 35 is initiated in a time-dependent manner in accordance with the actual temperature 61 measured in the tool segments 17 or pressed parts 16 in the ninth method step 78.
  • step 32b the startup of the plunger 4 is initiated after the catch in the lower reversal point in the starting position of the upper reversal point and controlled in the hydraulic pressure pad 15 switching to a first force setpoint.
  • cushion-dependent force setpoints 90 (90.1,90.2,90.3,90.4) process cushion, (multipoint table cushion)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Presses (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides, selon lequel l'entraînement servo-électrique associé à chaque point de pression ou à chaque groupe de points de pression du coulisseau en tant que fonction principale est en interaction combinée par l'intermédiaire d'une fonction d'onde de guidage avec les entraînements servo-électriques intégrés à la presse en tant que fonction auxiliaire sous la forme de coussins de pression hydrauliques dans les points de pression de l'entraînement du coulisseau et/ou de coussins de processus faisant office de coussins de machine ou d'outil de telle manière que d'une part, en cas de réduction de la puissance d'entraînement, une force de fermeture du coulisseau élevée est atteinte avant et pendant sa phase d'arrêt pour le formage et le durcissement de la pièce formée à chaud et une force d'ouverture du coulisseau peu élevée est atteinte après la phase d'arrêt, et que d'autre part, pour la compensation des fluctuations du processus se produisant en raison de grandeurs d'influence mécaniques et thermiques variables sur les propriétés de la pièce pressée à chaud, les coussins hydrauliques dans les points de pression du coulisseau et/ou les coussins de processus peuvent respectivement être régulés indépendamment les uns des autres avant, pendant et après la phase d'arrêt du coulisseau dans la zone du point d'inversion inférieur en fonction de la course et de la force pour une régulation active de la profondeur d'enfoncement et du basculement, en combinaison avec l'entraînement servo-électrique principal.
EP17727473.5A 2016-04-06 2017-04-06 Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides Pending EP3440520A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016106286.3A DE102016106286B4 (de) 2016-04-06 2016-04-06 Verfahren und Vorrichtung zur Steuerung und Regelung der Stößelbewegung und der Stößelkräfte an Mehrpunkt-Servo-Hybrid-Pressen
PCT/DE2017/100273 WO2017174077A1 (fr) 2016-04-06 2017-04-06 Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides

Publications (1)

Publication Number Publication Date
EP3440520A1 true EP3440520A1 (fr) 2019-02-13

Family

ID=58994806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17727473.5A Pending EP3440520A1 (fr) 2016-04-06 2017-04-06 Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides

Country Status (7)

Country Link
US (1) US10870251B2 (fr)
EP (1) EP3440520A1 (fr)
JP (1) JP6856664B2 (fr)
CN (1) CN109074042B (fr)
BR (1) BR112018067350A2 (fr)
DE (1) DE102016106286B4 (fr)
WO (1) WO2017174077A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017130425B4 (de) 2017-12-19 2020-01-16 Schuler Pressen Gmbh Verfahren und Vorrichtung zur Nutzpresskrafterhöhung an Servopressen
CN111444590A (zh) * 2019-11-18 2020-07-24 哈尔滨理工大学 一种连续回转电液伺服马达压力缓冲结构的优化方法
EP4119338A1 (fr) * 2021-07-14 2023-01-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Procédé de fonctionnement d'un appareil de presse et processus de formation
CN115674757A (zh) * 2022-11-30 2023-02-03 济南昊中自动化有限公司 一种新型底传动机械压力机
CN116713373B (zh) * 2023-08-10 2023-10-31 聊城市誉林工业设计有限公司 基于量产工业数据分析的换向片冲压工艺力补偿系统

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640507C3 (de) 1986-11-27 1998-01-29 Mueller Weingarten Maschf Einrichtung zur Steuerung bzw. Regelung der Blechhalterkraft während des Ziehvorganges
JP3231536B2 (ja) * 1993-02-25 2001-11-26 トヨタ自動車株式会社 プレス機械の異常診断方法
DE19541693A1 (de) * 1995-11-09 1997-05-15 Erfurt Umformtechnik Gmbh Einrichtung zur Steuerung und Regelung des Druckes in hydraulischen Ziehkissen von Pressen
DE19642587A1 (de) 1996-10-15 1998-04-16 Ulrich Keller Mehrpunktpresse mit hydraulischen Druckkissen und invers einstellbaren Federsteifen der Druckpunkte zur Kompensation der Stößelschrägstellung
DE19920377A1 (de) * 1999-05-04 2000-11-09 Fette Wilhelm Gmbh Steuer- und Überwachungsvorrichtung für eine Rundläufer-Tablettenpresse
DE10158861C2 (de) 2001-11-30 2003-12-04 Schuler Automation Gmbh & Co Vorrichtung zum Bewegen eines Stößels einer Presse
DE102005012876A1 (de) * 2005-03-19 2006-09-21 Müller Weingarten AG Verfahren und Vorrichtung zur Steuerung und Regelung von servo-elektrischen Ziehkissen
DE102005040263A1 (de) * 2005-08-24 2007-03-01 Müller Weingarten AG Verfahren und Vorrichtung zur Steuerung und Regelung der Stößelbewegung an servo-elektrischen Pressen
DE102006059796A1 (de) 2006-12-15 2008-06-19 Müller Weingarten AG Verfahren und Vorrichtung zur Steuerung und Regelung von Stößellageabweichungen an servo-elektrischen Pressen
JP5476106B2 (ja) * 2009-12-07 2014-04-23 アイダエンジニアリング株式会社 電動サーボプレスの制御方法及び制御装置
JP5761839B2 (ja) 2010-08-12 2015-08-12 株式会社エイチアンドエフ 鋼板のホットプレス方法
DE102011052860A1 (de) * 2010-08-24 2012-03-01 Schuler Pressen Gmbh Verfahren zum Betreiben einer Presse mit Unterantrieb und danach betriebene Presse
ES2395350B1 (es) 2011-02-02 2014-09-09 Fagor, S. Coop. Prensa mecánica adaptada a procesos de conformado, en particular procesos de conformado en caliente
US20140202345A1 (en) 2011-08-22 2014-07-24 Chris Wood Hot forming press
DE102012100325C5 (de) * 2012-01-16 2019-06-19 Schuler Pressen Gmbh Verwendung von Daten des Kraftflusses in einer Presse für den Betrieb eines Stößels
JP5680121B2 (ja) * 2013-01-24 2015-03-04 アイダエンジニアリング株式会社 プレス機械のダイクッション装置及びダイクッション制御方法
DE102013210807A1 (de) * 2013-06-10 2014-12-11 Gräbener Pressensysteme GmbH & Co. KG Überlast-Löseeinrichtung in einer Servopresse

Also Published As

Publication number Publication date
BR112018067350A2 (pt) 2019-01-15
DE102016106286A1 (de) 2017-10-12
JP6856664B2 (ja) 2021-04-07
US20190126582A1 (en) 2019-05-02
CN109074042B (zh) 2022-05-10
DE102016106286B4 (de) 2023-03-02
CN109074042A (zh) 2018-12-21
US10870251B2 (en) 2020-12-22
WO2017174077A1 (fr) 2017-10-12
JP2019513559A (ja) 2019-05-30

Similar Documents

Publication Publication Date Title
WO2017174077A1 (fr) Procédé et dispositif permettant de réguler le mouvement du coulisseau et les forces du coulisseau sur des servopresses multipoints hybrides
EP1861214B1 (fr) Procede et dispositif pour commander et regler des coussins de serre-flan servo-electriques
EP2118709B1 (fr) Procédé et dispositif de commande et de réglage de différences de position de piston dans des presses servo-électriques
EP1917564B1 (fr) Procede et dispositif pour commander et reguler le mouvement du poussoir sur des presses servo-electriques
DE102011084799B4 (de) Presslaststeuereinrichtung für eine mechanische Presse
DE3153332C2 (de) Verfahren zur Steuerung einer hydraulischen Presse zum Pressen von Platten auf Holzbasis und Vorrichtung zur Durchführung des Verfahrens
EP2903811A1 (fr) Procédé de commande d'une presse à poudre céramique ou métallique, et presse à poudre céramique ou métallique
WO2006026797A1 (fr) Procede pour realiser une piece par cintrage
EP3468770A1 (fr) Dispositif et procédé pour étirer et/ou mettre en forme et/ou appliquer un élément en feuille pour former un revêtement, poste de revêtement et système pour revêtir une pièce
EP2200802B1 (fr) Procédé et dispositif de commande d'un axe déplacé linéairement
DE3744177C2 (fr)
EP1497100A1 (fr) Installation de thermoformage et procede pour produire des corps moules en film de matiere plastique
EP1782896B1 (fr) Procédé pour le formage d' une pièce et machine de laminage
DE102009045543A1 (de) Thermoformanlage und Antriebseinheit sowie ein Verfahren zum Betreiben der Thermoformanlage
EP2804751B1 (fr) Utilisation de données du flux de force dans une presse pour le fonctionnement d'un pilon
DE19954310A1 (de) Verfahren zum schnellen Regeln von Ziehvorgängen in Pressen und hierzu geeignete Ziehpresse
DE102012109150A1 (de) Verfahren und Einrichtung zum Betreiben einer Werkzeugmaschine wie Presse mit linear bewegbarem Hubelement
AT517261A1 (de) Vertikale Schließeinheit für eine Formgebungsmaschine
DE102020127915A1 (de) Steuervorrichtung einer bearbeitungsmaschine zur bearbeitung eines zu bearbeitenden objekts auf einem matrizenkissen
EP3157727B1 (fr) Procédé pour faire fonctionner une machine de moulage par injection
DE102017130425B4 (de) Verfahren und Vorrichtung zur Nutzpresskrafterhöhung an Servopressen
DE102010060627B4 (de) Umformmaschine mit Stößelregelung
DE102004046493B4 (de) Presse insbesondere zur Herstellung von Formteilen aus Kunststoff
AT514569B1 (de) Verfahren zum Betrieb einer Schließeinheit
DE10218486A1 (de) Thermoformanlage zur Herstellung von Formkörpern aus Kunststoffolie, sowie Verfahren zu deren Herstellung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181106

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201214

RIC1 Information provided on ipc code assigned before grant

Ipc: G05B 19/042 20060101AFI20210517BHEP

Ipc: B30B 15/26 20060101ALI20210517BHEP

Ipc: B30B 1/28 20060101ALI20210517BHEP

Ipc: B30B 15/14 20060101ALI20210517BHEP

Ipc: B30B 15/16 20060101ALI20210517BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS