EP2486993A1 - Dispositif de déformation et procédé de fonctionnement d'un dispositif de déformation - Google Patents
Dispositif de déformation et procédé de fonctionnement d'un dispositif de déformation Download PDFInfo
- Publication number
- EP2486993A1 EP2486993A1 EP11001107A EP11001107A EP2486993A1 EP 2486993 A1 EP2486993 A1 EP 2486993A1 EP 11001107 A EP11001107 A EP 11001107A EP 11001107 A EP11001107 A EP 11001107A EP 2486993 A1 EP2486993 A1 EP 2486993A1
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- EP
- European Patent Office
- Prior art keywords
- tool carrier
- rotary table
- workpiece rotary
- sensor
- workpiece
- 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.)
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Images
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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2615—Edge treatment of cans or tins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2653—Methods or machines for closing cans by applying caps or bottoms
-
- 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
- B30B1/10—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 toggle mechanism
Definitions
- the invention relates to a forming device for cup-shaped hollow body with a machine control, a drive device, a workpiece turntable for receiving hollow bodies and a tool holder for holding machining tools, wherein the workpiece rotary table and tool carrier are opposite and rotatable about an axis of rotation to each other and along the axis of rotation are mutually linearly adjustable and the drive device is designed so as to be controllable by the machine control and is set up to provide a rotary step movement and a cyclical linear movement between the workpiece rotary table and the tool carrier, in order to enable a reshaping of the hollow bodies by means of the processing tools in a plurality of successive processing steps, and with an adjusting device which is used to set a stroke length cyclic linear movement and / or a minimum distance between the tool carrier and the Maschinen Swissrun is formed. Furthermore, the invention also relates to a method for operating a forming device.
- a forming machine is known, with the cup-shaped hollow body made of metal, in particular aluminum, from a substantially cylindrical sleeve-shaped Initial state partially formed, in particular locally retracted, can be, for example, in the region of the opening to put a cap or a spray valve sealingly.
- the known forming machine has a rotatably mounted workpiece rotary table and a linearly mounted tool rotary table. In the machine frame, a drive device is received, which is designed to generate an intermittent rotary motion of the workpiece rotary table and to produce an oscillating linear movement of the guide tube and the associated rotary tool table.
- the tools provided on the tool rotary table in particular forming tools, can be brought into engagement with the hollow bodies held on the workpiece rotary table in order to process them locally, in particular to plastically deform them.
- the hollow bodies Due to the intermittent rotational movement of the workpiece rotary table, the hollow bodies can be brought into serial contact with the tools mounted on the tool carrier table in order to achieve a stepwise deformation of the hollow bodies from an initial geometry to a target geometry.
- the hollow bodies are fixed by means of workpiece holders mounted on the workpiece rotary table and released again after the processing has been carried out.
- the object of the invention is to provide a forming device and a method for operating a forming device, with which an improved machining accuracy during the forming of the hollow body can be ensured.
- the adjusting device is designed such that it allows the adjustment of the stroke length and / or the minimum distance between the tool carrier and the workpiece rotary table during the execution of the linear movement.
- the machine control system is designed in such a way for activating the adjusting device, that an adjustment of the stroke length of the cyclical linear movement takes place as a function of at least one state value of the drive device.
- the state value of the drive device may be a value predefined by the machine control, for example a speed, a movement speed, a cycle number or the like, which is effected by the machine control by a corresponding control of the drive device. This makes it possible, for example, to make a corresponding adjustment of the stroke length and / or the minimum distance at a to be carried out by the machine control change the cycle number for the cyclic linear movement and the intermittent rotary step movement.
- Such adjustments can be made in real time during the change of the operating state, anticipating before the change of the operating state or even after the change of the operating state.
- a value table is stored in the machine control, based on which when changing the operating state of the forming a Stellwertvorgabe can be determined, which is output from the machine control to the adjustment to control this according to the desired correction.
- the machine control at least one sensor device for Determining at least one state value of the drive device is assigned.
- the machine control can calculate a manipulated variable preset, which is provided to the adjusting device as a control command. This makes it possible to control the stroke length and / or the minimum distance in a closed loop.
- the at least one state value form the input variable and the manipulated variable specification provided by the machine control system form the output variable of the control loop.
- the sensor device is designed as a length sensor and / or distance sensor and / or rotational speed sensor and / or acceleration sensor and / or deformation sensor and / or temperature sensor and is coupled to the machine control.
- a length sensor for example, the length of a component of the drive device, in particular a connecting rod of an eccentric drive of the drive device, can be determined. From the determined length can then be determined directly or after correction with a constant or variable correction value a manipulated variable from the machine control, which is passed to the adjustment.
- the sensor device as a distance sensor, the distance between the workpiece rotary table and the tool carrier is preferably determined; this can be achieved, for example, with the aid of an optical or mechanical distance sensor.
- a distance measurement takes place in the front reversal point, in which there is a minimum distance between the workpiece rotary table and the tool carrier, and / or in the rear reversal point, in which there is a maximum distance between the workpiece rotary table and the tool carrier.
- the sensor device can also be used as a speed sensor and / or acceleration sensor be formed, by means of which indirectly the deformation and bearing play influenced deviation between an actual deformation of the hollow body and a predetermined deformation of the hollow body can be determined.
- the sensor device may be formed as a temperature sensor in order to be able to draw conclusions about the actual stroke length and / or the minimum distance on the basis of the determined temperature of the drive device.
- the sensor device with the aid of a high-speed camera with downstream image processing, wherein the high-speed camera is preferably placed at a processing station at which a particularly critical forming step is carried out to determine the image of the image taken by the high-speed camera edited hollow body under evaluation by the image processing software to make an analysis of whether the geometry of the formed hollow body is within or outside a predetermined tolerance band.
- a control algorithm is stored in the machine control in order to enable an adjustment of the adjusting device as a function of at least one state value.
- the control algorithm is preferably a calculation formula by means of which a manipulated variable specification for the adjustment device, including at least one state value, preferably including all state values provided by the sensor device and optionally the processes stored in the machine control, is determined for the operation of the conversion device becomes.
- provision is made in particular for the state values to be dependent on time and / or state variable weights in the control algorithm einflie- ⁇ en to allow a particularly advantageous calculation of the manipulated variable specification and thus to ensure the most accurate positioning of the tool carrier relative to the workpiece turntable.
- the adjusting device is designed for a linear adjustment movement of the tool carrier relative to the drive device.
- a zero point of a spatial coordinate system is arranged on a component of the drive device, for example on a central axis of a drive shaft, and the positions of the workpiece rotary table and of the tool carrier are determined starting from this zero point.
- the adjusting device is designed such that it changes the relative position of the tool carrier relative to this zero point of the coordinate system.
- the object of the invention is achieved by a method for operating a forming device for cup-shaped hollow body, wherein the forming device, a machine control, a drive device, a Workpiece rotary table for receiving hollow bodies and a tool carrier for receiving processing tools, wherein the workpiece rotary table and tool carrier are opposite and rotatable about an axis of rotation and mutually linearly adjustable along the axis of rotation and wherein the drive means is formed controllable by the machine control and providing a rotary step movement and a cyclic linear movement between the workpiece rotary table and the tool carrier is formed to allow a deformation of the hollow body by means of the processing tools in several successive processing steps, as well as with an adjusting device for adjusting a stroke length of the cyclic linear movement and / or a minimum distance between the tool carrier and the workpiece rotary table is trained.
- an adjustment of the stroke length and / or the minimum distance between the tool carrier and the workpiece rotary table is carried out by means of the adjusting device during the execution of the linear movement.
- the forming device can be adapted during operation of performing forming operations to changing boundary conditions such that always the best possible deformation result is achieved.
- the setting of the stroke length and / or the minimum distance between the tool carrier and the workpiece rotary table by means of the adjusting device is carried out within a predefinable time interval within a cycle of the linear movement.
- the time interval thus comprises a fraction of the cycle duration of the linear movement, which, starting from a zero position with the maximum distance between the tool carrier and the workpiece rotary table, results from the approach between the tool carrier and the workpiece rotary table and the subsequent removal of the tool carrier from the workpiece rotary table to the zero position.
- the predetermined time interval for setting the stroke length and / or the minimum distance is a fraction of the cycle length of the linear movement, which is less than 50 percent, in particular less than 30 percent.
- the time interval is selected such that an interval limit is close to a reversal time of the linear movement, to which a distance between the tool carrier and the workpiece turntable is maximum. That is, the adjustment of the stroke length and / or the minimum distance starts or ends at a time which is at least nearly identical to the reversal time for the linear movement between the tool carrier and the workpiece rotary table.
- This ensures that the adjusting movement takes place at least predominantly, preferably completely within a time interval during which no deformation of the hollow body is made, so that the temporal area is omitted, during which particularly high forces between the tool carrier and workpiece rotary table must be transmitted via the drive means ,
- the time interval begins during a removal movement between the tool carrier and the workpiece rotary table and ends during an approach movement between the tool carrier and the workpiece rotary table.
- the time interval includes the rear reversal point, ie a time at which a distance between the tool carrier and workpiece turntable is maximum, so that the adjustment of the stroke length and / or the minimum distance between the workpiece carrier and the workpiece turntable made at least predominantly, preferably completely outside that time interval can be during which takes place an engagement of the deformation tools received on the tool carrier in the recorded on the workpiece rotary table hollow body.
- the time interval for adjusting the adjusting device is selected with the aid of the machine control in such a way that the adjusting device can be operated with the lowest possible load.
- it can be provided in an adjustment designed as a spindle drive to adapt the time interval in each case to the intended adjustment that the effect of the spindle pitch during the deceleration movement near the rear reversal time and the subsequent acceleration movement in the direction of the front reversal point is advantageously exploited.
- the design of the adjusting device can be carried out in a particularly cost-effective manner.
- At least one state value of the drive device is processed in the machine control, which is provided by a sensor device to determine a manipulated variable specification for the adjustment and to control the adjustment accordingly.
- the machine control can perform a control of the adjusting device, wherein the at least one state value is used as an input variable for the control algorithm and the manipulated variable input for the adjusting device forms the output variable of the control algorithm.
- a link is made between the measured state value of the drive device and a default value for a desired state value of the drive device in order to determine a manipulated variable specification for the adjustment device and to control the adjustment device accordingly.
- This procedure is particularly advantageous when the forming device is to be converted into a different operating state starting from a given operating state, for example by lengthening or shortening the cycle time for the cyclic linear movement.
- the machine control can carry out a prospective adjustment of the adjusting device based on the measured state values of the drive device and with knowledge of the planned temporal change of the operating state and, for this purpose, calculate a corresponding control value specification.
- a monitoring of a loading of the tool carrier with tools and / or the workpiece rotary table with workpieces for determining a control value specification for the adjustment takes place.
- the deformation tools to be mounted on the tool carrier change the mass of the tool carrier to a considerable extent, so that consideration of this loading of the tool carrier by the machine control leads to an improved quality of the deformation of the hollow body.
- both the loading of the tool carrier with tools and the loading of the workpiece rotary table with workpieces are determined by the machine control and taken into account in the calculation of the setpoint specification for the adjustment. If, in addition, at least one state value is taken into account, a particularly exact deformation of the hollow body can be achieved.
- the machine control system regulates the stroke length of the cyclic linear movement and / or the minimum distance between the tool carrier and the workpiece rotary table on the basis of state values and at least one of the loading of the tool carrier with tools and / or the loading of the workpiece rotary table with workpieces Characteristic value.
- One in the FIG. 1 illustrated forming device 1, which is particularly suitable for forming cup-shaped hollow bodies, comprises a machine frame 2, on which a
- Workpiece rotary table 3 and a tool carrier 4 are arranged.
- the forming device 1 of the workpiece rotary table 3 is rotatably mounted on the machine frame 2, while the tool carrier 4 is exemplarily linearly movably received on the machine frame 2.
- the workpiece rotary table 3 is thus mounted so as to be rotatable relative to the machine frame 2 and the tool carrier 4 about an axis of rotation 5.
- the tool carrier 4 can be moved linearly along the axis of rotation 5 relative to the machine frame 2 and the workpiece rotary table 3.
- the forming device 1 further comprises a drive device 6, which is designed to provide an intermittent rotational movement or rotational step movement and to provide a cyclically oscillating linear movement.
- the drive device 6 is designed to provide the rotary step movement to the workpiece rotary table 3 and to provide the cyclically oscillating linear movement to the tool carrier 4.
- the drive mechanism 6 comprises a double eccentric arrangement 8.
- the double eccentric arrangement 8 which also includes an eccentric shaft 9 and an eccentric cam 10, serves as an eccentric crankshaft that can be adjusted with respect to the crank stroke to provide a circular circulation movement for a closer one designated connecting rod eye of a connecting rod. 7
- the forces necessary for driving the connecting rod 7 are provided, for example, by a drive motor 11 designed as an electric motor, which has a belt drive, which is exemplarily designed as a V-ribbed belt 12 is coupled to a flywheel 13.
- the flywheel 13 can be brought into force-transmitting connection with a drive pinion 15 via a flywheel clutch 14 that can be coupled during operation of the forming device 1.
- the drive pinion 15 is in engagement with a main gear 16, which is received rotatably mounted on two support webs 17, of which due to the sectional view of FIG. 1 only one is visible.
- two, preferably each integrally formed, exemplified cylindrically shaped bearing pin 18 are mounted in a mirror image arrangement, which are arranged concentrically to the main gear 16 and engage in a manner not shown in one of the support cheek 17 respectively associated storage and the pivot bearing of the main gear 16 serve.
- the inner eccentric 9 is fixedly mounted on the main gear 16
- the outer eccentric 10 is adjustably mounted on the main gear 16 to adjust the crank stroke of the double eccentric 8 for the connecting rod 7 can.
- the outer eccentric 10 can be decoupled from the inner eccentric 9 by means of a coupling, not shown, and rotated about a normal to the plane of representation pivot axis, preferably continuously, relative to the inner eccentric 8 for stroke adjustment , Subsequently, the clutch is closed again, so that the two eccentrics 9 and 10 are again coupled to transmit power.
- a driven gear 19 in permanent engagement, which via a switchable during operation of the forming device 1 step transmission clutch 21 can be brought into force-transmitting connection with a stepping 20.
- the indexing gear 20 converts the continuous rotational movement of the output gear 19 into a discontinuous, intermittent rotational step movement, which is transmitted to the workpiece rotary table 3 via a stepping shaft 22 and a stepping gear 23.
- an internal toothing 24 is formed on the workpiece turning table 3, into which the stepping switching pinion engages in order to transmit the rotary step movement of the stepping gear 20 to the workpiece turning table 3, which then completes the rotary stepping movement about the axis of rotation 5.
- a servo drive can be used, which allows an electrically controlled rotary step movement.
- the workpiece rotary table 3 is rotatably mounted on a support plate 26 by means of a rotary bearing 25.
- the support plate 26 is part of a first machine frame part, which also comprises a support frame 31.
- the support frame 31 has the task of deriving the torques, which act on the support plate 26 by the weight forces of the components mounted on the support plate 26, described in more detail below, into a base plate 32.
- the rotary bearing 25 comprises, for example, a support ring 26 mounted on the preferably annular bearing ring 28 having a bearing surface on a circumferential outer surface for a plurality of rolling elements 29 shown schematically.
- the rolling elements 29 are between the bearing ring 28 and a bearing ring 28 opposite, on the workpiece rotary table 3 exemplified as a circumferential collar 63 formed bearing surface 30th arranged and are held by a cage, not shown in position. Together with the bearing ring 28 and the peripheral collar 63, they form a radial bearing which ensures a low-friction rotary movement of the workpiece rotary table 3 with high precision, in particular with respect to the axis of rotation 5 and the tool carrier 4.
- the sliding bearing ring 62 and the oppositely disposed surface of the workpiece rotary table 3 are supplied by an unspecified lubrication circuit with an intermittent or continuous lubricant supply with lubricant.
- a support tube 33 is attached, which serves as an example for supporting and linear mounting of the tool carrier 4.
- the support tube 33 has an exemplary annular cross-section in a cross-sectional plane oriented normal to the axis of rotation 5, not shown.
- a cylindrical inner surface 35 of the support tube 33 serves as a sliding bearing surface for a coupling slide 34 which is coupled to the connecting rod 7 and serves to implement the combined rotational and linear movement of the connecting rod 7 in a linear movement.
- the coupling carriage 34 comprises by way of example a tubular body 37, on which a bearing pin 38 is mounted for the pivotable mounting of the connecting rod 7.
- a plurality, preferably annular, sliders 39 On the base body 37 are radially outwardly a plurality, preferably annular, sliders 39, For example, from plain bearing bronze, arranged, which are designed for a sliding movement on the inner surface 35 of the exemplary, made of metal, support tube 33.
- bearing rails 40 are mounted, which serve as linear guide elements for the tool carrier 4.
- the bearing rails 40 are arranged at the same angular pitch about the axis of rotation 5, for example in a 120-degree graduation or a 90-degree graduation.
- linear guides 42 are mounted, which engage around the bearing rails 40 each U-shaped.
- the linear guides 42 may be formed, for example, as recirculating ball bearings, in which a plurality of cylindrical or spherical rolling elements are received in a guideway and allow a linear relative movement relative to the respective bearing rail 40.
- the linear guides 42 are braced against each other by not shown clamping means in the radial direction and / or in the circumferential direction of the support tube 33, whereby a backlash, in particular backlash-free, linear bearing of the tool carrier 4 relative to the support tube 33 is achieved. Due to the linear guides 42 of the tool carrier 4 is rotatably received on the support tube 33.
- the threaded spindle 44 extends, for example, in parallel, in particular concentrically, to the axis of rotation 5.
- the two spindle nuts 45, 46 are rotatably and linearly connected to each other.
- the second spindle nut 46 is assigned a, preferably hydraulically controllable, linear adjusting device 48 and a servomotor 49.
- the object of the servomotor 49 which is preferably designed as a torque motor and coupled to the second spindle nut 46, rotatably mounted rotor 50 and a stator 51 includes, which is rotatably received in a driver 52, therein, the two spindle nuts 45, 46 by To move rotation along the threaded spindle 44 and thereby allow an adjustment of a starting position of the tool carrier 4 along the threaded spindle 44.
- the task of the linear adjusting device 48 which can exert a force in the direction of the axis of rotation 5 on the second spindle nut 46, is to brace the second spindle nut 46 relative to the first spindle nut 45 and thus a backlash-free power transmission between the threaded spindle 44 and the driver 52 permit, in which the spindle nuts 45 and 46 are received stationary and rotationally movable.
- the driver 52 is exemplarily designed as a substantially rotationally symmetrical body and has a circumferential flange 53, to which a tubular coupling means 54 is attached, which is for a force-transmitting Connection with the tool carrier 4 is formed.
- the flange 53 and the coupling means 54 are dimensioned such that they are slightly elastically deformed due to the transmitted from the tool carrier 4 on the workpiece rotary table 3 forces while possibly occurring tilting of the coupling carriage 34 and the driver 47 take about tilt axes transversely to the axis of rotation 5 at least partially so that they are not or at best proportionally transferred to the tool carrier 4.
- a particularly high degree of precision is achieved for the processing of the hollow body 55 accommodated on the workpiece rotary table.
- a plurality of the same angular distribution to the axis of rotation 5 arranged, also referred to as a chuck workpiece holder 55 are mounted, in each of which cup-shaped hollow body 56 are added.
- a tool carrier 4 opposite the workpiece rotary table 3 corresponding tool holders 57 corresponding to the workpiece holders 55 are arranged, which are equipped with machining tools 58, for example with forming tools.
- FIG. 2 is a block diagram representation of the set for the adjustment of the stroke length and / or the minimum distance between the tool carrier 4 and the workpiece turntable 3 functional components.
- the in the FIG. 2 shown forming device 1 corresponds to the in FIG. 1 Forming device 1 shown, only the representation of the functional components is different from the representation of FIG. 1 ,
- those functional components representing a controlled or controlled adjustment of the stroke length and / or the minimum distance allow between the tool carrier 4 and the workpiece rotary table 3 during the implementation of the linear movement.
- the forming device 1 comprises a machine control 80, an adjusting device 81 and a sensor device 82, which is formed by way of example from a plurality of sensors 85 to 90.
- the adjusting device 81 is designed for an adjustment of the stroke length and / or the minimum distance between the tool carrier 4 and the workpiece rotary table 3 during the execution of the linear movement, by way of example in the manner of the assembly of threaded spindle 44, the spindle nuts 45, 46 and the servomotor 49, as they are in the FIG. 1 is specified.
- the adjusting device 81 and the sensors 85 to 90 of the sensor device 82 are electrically coupled to the machine control 80 via connecting lines 91.
- the sensor device 82 comprises the following sensors: a strain sensor 85 attached to the connecting rod 7, which may be designed, for example, as a strain gauge; a likewise attached to the connecting rod 7 acceleration sensor 86; a speed sensor 87 attached to the drive motor 11; a temperature sensor 88 attached to the drive device 6; a provided for determining the distance between the workpiece turntable 3 and tool holder 4 and attached by way of example on the tool carrier 4 distance sensor 89 and an acceleration sensor 90, which is also exemplary mounted on the tool carrier 4.
- the machine controller 80 is connected to a drive motor 92, which serves to initiate a translational movement on the workpiece rotary table 3 along the axis of rotation 5.
- This optionally provided drive motor 92 acts a transmission device, not shown, which is provided between the support plate 26 and the sliding bearing ring 62.
- the drive motor 92 and the transmission device allow the axial position of the workpiece rotary table 3 to be changed along the axis of rotation 5, at least in an adjustment range of a few millimeters.
- the drive device 6 is designed such that the tool carrier 4 executes a cyclically recurring translational movement according to the arrow 93.
- the tool carrier 4 by means of the adjusting device 81 with respect to its stroke length and / or its minimum distance to the workpiece rotary table 3 with respect to the drive means 6 and thus also with respect to the workpiece rotary table 3 also along the axis of rotation 5 adjustable, which is symbolized by the arrow 94.
- a coordinate system 98 is shown in the drive device 6, whose X-axis is aligned parallel to the axis of rotation 5 and the origin of the zero point for determining the positions of the workpiece rotary table 3 and the tool carrier 4 along the axis of rotation 5 is used.
- the arrow 95 symbolizes the rotational movement of the workpiece rotary table 3
- the arrow 96 symbolizes the linear adjustability of the axial position of the workpiece rotary table 3 along the axis of rotation. 5
- the forming device 1 runs in the machine control 80 from a predetermined program, with the aid of the drive means 6 with the associated drive motor 11 and the adjusting device 81 and optionally the drive motor 92 can be controlled.
- the program sequence for the drive device 6, the adjusting device 81 and the drive motor 92 can be selected, for example, such that the forming device 1 is started up slowly from a standstill, for which purpose the speed of the drive motor 11 is increased.
- a rigid coupling is provided between the drive motor 11, the drive device 6 and the tool carrier operatively connected thereto, so that a speed change of the drive motor 11 brings about a change in the cycle times for the movements of the workpiece rotary table 3 and of the tool carrier 4.
- the dynamic loads on the components of the forming device 1 are low.
- the deviations between a desired value for the lifting movement of the tool carrier 4 relative to the workpiece rotary table 3 are also low, since the loads in the bearings for the workpiece rotary table 3 and the tool carrier 4 are at a low level and no deformation due to dynamic force effects on the workpiece rotary table 3rd , the tool carrier 4 and the drive device 6 are present.
- even slight inaccuracies in the processing of hollow bodies occur.
- the machine controller 80 can be programmed based on simulation data and / or empirical values such that for each operating state of the forming device 1, in particular for each cycle duration of the linear movement of the tool carrier 4, optionally as a function of the maximum stroke as the difference between the minimum and the maximum distance between the workpiece turntable 3 and the tool holder 4 a manipulated variable for the adjusting device 81 is stored.
- a manipulated variable for the adjusting device 81 is stored.
- the machine controller 80 particularly preferably processes the state values provided by the sensors 85 to 90 of the sensor device 82 in order to regulate the relative position of the tool carrier 4 relative to the workpiece rotary table 3.
- it is provided to use the distance measurement by the distance sensor 89 to determine the minimum distance between the tool carrier 4 and the workpiece rotary table 3 during the lifting movement.
- This minimum distance which is also referred to as the front reversal point for the cyclic linear movement of the tool carrier 4 can be compared with the in FIG. 1 shown arrangement of threaded spindle 44, the spindle nuts 45, 46 and the servomotor 49, which in the FIG. 2 be represented by the adjusting 81, are changed.
- This change in the position of the front reversal point is done by way of example by shifting the interval boundaries, in particular the front reversal point and the rear reversal point of the cyclic linear movement, while the amount of lifting movement thereby does not need to be changed.
- the control of the adjusting device 81 can be carried out here without or with the inclusion of state values of the sensor device 82, that is controlled or regulated.
- the engine controller 80 may also process the state values of the remaining sensors 85-88 and 90.
- load sensors not shown on the workpiece rotary table 3 and / or on the tool carrier 4 are preferably likewise coupled to the machine control 80 and can detect a loading of the workpiece rotary table 3 with workpieces and a loading of the tool carrier 4 with tools. On the basis of the detected load can also be made a compensation of possibly occurring position deviations between the tool carrier 4 and workpiece turntable 3.
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11001107.9A EP2486993B1 (fr) | 2011-02-11 | 2011-02-11 | Dispositif de déformation et procédé de fonctionnement d'un dispositif de déformation |
ES11001107.9T ES2475140T3 (es) | 2011-02-11 | 2011-02-11 | Instalación de conformado y procedimiento para accionar una instalación de conformado |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11001107.9A EP2486993B1 (fr) | 2011-02-11 | 2011-02-11 | Dispositif de déformation et procédé de fonctionnement d'un dispositif de déformation |
Publications (2)
Publication Number | Publication Date |
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EP2486993A1 true EP2486993A1 (fr) | 2012-08-15 |
EP2486993B1 EP2486993B1 (fr) | 2014-03-26 |
Family
ID=44680923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11001107.9A Active EP2486993B1 (fr) | 2011-02-11 | 2011-02-11 | Dispositif de déformation et procédé de fonctionnement d'un dispositif de déformation |
Country Status (2)
Country | Link |
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EP (1) | EP2486993B1 (fr) |
ES (1) | ES2475140T3 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113891769A (zh) * | 2020-01-31 | 2022-01-04 | 旭精机工业株式会社 | 冲压机以及冲压产品的制造方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1777297A1 (de) * | 1961-01-12 | 1971-07-29 | Rudolf Lechner Kg Singen Tuben | Vorrichtung zur Bearbeitung von zylindrischen Metallbehaeltern |
EP0275369A2 (fr) | 1987-01-21 | 1988-07-27 | FRATTINI S.p.A.-COSTRUZIONI MECCANICHE | Machine pour former des cônes et colerettes pour boîtes aérosols et analogues |
US20030041643A1 (en) * | 2001-08-16 | 2003-03-06 | Wenliang Tang | Adjustable stroke mechanism |
EP2123373A1 (fr) * | 2007-03-09 | 2009-11-25 | Mitsubishi Materials Corporation | Dispositif de fabrication de boîte et procédé de fabrication de boîte |
-
2011
- 2011-02-11 EP EP11001107.9A patent/EP2486993B1/fr active Active
- 2011-02-11 ES ES11001107.9T patent/ES2475140T3/es active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1777297A1 (de) * | 1961-01-12 | 1971-07-29 | Rudolf Lechner Kg Singen Tuben | Vorrichtung zur Bearbeitung von zylindrischen Metallbehaeltern |
EP0275369A2 (fr) | 1987-01-21 | 1988-07-27 | FRATTINI S.p.A.-COSTRUZIONI MECCANICHE | Machine pour former des cônes et colerettes pour boîtes aérosols et analogues |
US20030041643A1 (en) * | 2001-08-16 | 2003-03-06 | Wenliang Tang | Adjustable stroke mechanism |
EP2123373A1 (fr) * | 2007-03-09 | 2009-11-25 | Mitsubishi Materials Corporation | Dispositif de fabrication de boîte et procédé de fabrication de boîte |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113891769A (zh) * | 2020-01-31 | 2022-01-04 | 旭精机工业株式会社 | 冲压机以及冲压产品的制造方法 |
EP3984665A4 (fr) * | 2020-01-31 | 2022-10-12 | Asahi-Seiki Manufacturing Co., Ltd. | Presse et procédé de fabrication de produit pressé |
CN113891769B (zh) * | 2020-01-31 | 2023-09-05 | 旭精机工业株式会社 | 冲压机以及冲压产品的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2486993B1 (fr) | 2014-03-26 |
ES2475140T3 (es) | 2014-07-10 |
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