DE102012002213A1 - Tool for use with actuating device for shaping sheet material, has tool component with blank holder, where actuating device acts between blank holder and another tool component, and has actuating element and electromagnetic actuating drive - Google Patents

Abstract

The tool has a tool component (100) with a blank holder (130), which presses a sheet material (400) with a predetermined clamping force against another tool component during shaping of a flange section (410). An actuating device (300) acts between the blank holder and the latter tool component, which pushes apart during shaping of the blank holder and the latter tool component to vary the surface pressure or the surface pressure distribution. The actuating device comprises an actuating element and an electromagnetic actuating drive for actuation of the actuating element. An independent claim is included for a method for shaping a sheet material using a tool and an actuating device.

Description

The invention relates to a tool for sheet metal forming or a tool for forming a sheet material according to the closer specified in the preamble of claim 1. Art.

The invention further relates to a location direction for use in such a tool as well as a method for forming a sheet material.

From the DE 10 2006 031 438 B4 is a tool for forming a sheet material known. The previously known from this patent tool has two tool parts (upper tool part and lower tool part), which are relatively movable relative to each other and between which a sheet material can be reshaped. One of the tool parts has a hold-down (or plate holder) which is relatively movable in a known manner relative to the respective tool part and presses during deformation a flange portion of the sheet material with predetermined hold-down force against the other tool part (in this case against the die).

As is known, the flange portion is the sheet-metal area clamped during forming between the holding-down device and typically the die with a defined surface pressure, which during the forming process carries out a relative movement to these tool parts subjected to frictional forces.

That from the DE 10 2006 031 438 B4 Previously known tool further comprises at least one effective between the holding-down device and the die mechanically actuatable adjusting device (so-called adjustable spacer element) which presses the hold-down and the die apart during forming or distanced to each other, to this the resulting hold-down surface pressure (hereinafter also only referred to as surface pressure) can vary or adapt.

However, the prior art tool and the adjustable spacer element have various disadvantages, such as. A high mechanical wear of the spacer element and a sluggish behavior when changing the setting.

It is therefore an object of the present invention to provide a tool of the type mentioned that the disadvantages associated with the prior art not or at least only to a reduced extent.

This object is achieved by an inventive tool for forming a sheet material with the features of claim 1. Preferred embodiments and further developments of the tool according to the invention will become apparent from the dependent claims and also from the following explanations.

With two independent claims, protection is also claimed separately for a setting device for use or for installation in a tool according to the invention and for a preferred alternative use of such a setting device.

With a further independent claim is claimed separately for a method for forming a sheet material using a tool according to the invention and / or a corresponding actuating device (as explained in more detail below) separately shoe. In this method, it is provided in particular that the surface pressure and / or surface pressure distribution given during forming in (at least) one flange section of the sheet material varies (or is adjusted or adjusted) during the ongoing or progressive forming process.

The preceding and following explanations apply analogously to all subjects of the invention. To understand the invention is expressly also to the explanations in the DE 10 2006 031 438 B4 directed.

• – zwei (d. h. wenigstens zwei) zueinander relativbewegliche Werkzeugteile (in der Regel handelt es sich hierbei um einen Stempel und eine Matrize), zwischen denen das Blechmaterial umgeformt wird (bzw. umgeformt werden kann), wobei (wenigstens) eines der Werkzeugteile (wenigstens) einen Niederhalter aufweist, der beim Umformen (wenigstens) einen Flanschabschnitt des Blechmaterials mit vorgegebener Niederhalterkraft gegen das andere Werkzeugteil (in der Regel gegen die Matrize) drückt (bzw. drücken kann) oder an dieses andere Werkzeugteil andrückt (bzw. andrücken kann), und
• – wenigstens eine zwischen dem Niederhalter und dem anderen Werkzeugteil wirksame Stelleinrichtung (bzw. Aktor oder Aktuator), die beim Umformen den Niederhalter und das andere Werkzeugteil (bzw. die Matrize) auseinander drückt bzw. distanziert (bzw. auseinander drücken bzw. distanzieren kann), um hierüber die (resultierende) Flächenpressung und/oder Flächenpressungswerteilung zu variieren bzw. variieren (bzw. anpassen oder einstellen) zu können.

The tool according to the invention, which is in particular a deep-drawing tool, comprises

• Two (ie at least two) relative to each other relatively movable tool parts (usually this is a punch and a die), between which the sheet material is formed (or can be reshaped), wherein (at least) one of the tool parts (at least) having a hold-down (at least) presses a flange portion of the sheet material with a predetermined hold-down force against the other tool part (usually against the die) (or can press) or presses on this other tool part (or can press), and
• At least one actuating device (or actuator or actuator) acting between the hold-down device and the other tool part, which presses apart or distances (or can press or distract apart) the hold-down device and the other tool part (or die) during forming in order to be able to vary (or adapt or adjust) the (resulting) surface pressure and / or surface pressure distribution.

According to the invention it is now provided that at least one actuating device has at least one actuator (or actuator) and at least one electromagnetic actuator (or an electromagnetic drive assembly) for actuation and in particular for direct or immediate actuation of the actuator.

Preferably, a direct implementation of the adjusting movement and / or actuating force generated by the electromagnetic actuator is provided, d. H. without intermediary active elements, what u. a. high efficiency, a compact design and a high degree of wear-free result. Furthermore, it is preferably provided that the actuator of the actuating device is acted upon and / or deflected only by activation of the electromagnetic actuator from an initial position (rest position or zero position) out and / or is deflected.

The proposed adjusting device allows a rapid or reaction-sensitive variation (or adjustment or adjustment) of the surface pressure and / or surface pressure distribution applied by the hold-down device by the hold-down device and the other tool part (or die) by electrical activation of the actuating device at least locally and preferably can only be pressed apart locally. The effective or resulting surface pressure and / or surface pressure distribution can be almost directly changed or influenced.

With the adjusting device is also a variation (or adjustment or adjustment) of the hold-down pressure and / or the surface pressure distribution during a forming process, d. H. during the working stroke of the press, possible, which can take place, for example, in a control loop. This is not possible with the known from the prior art mechanical, electro-mechanical and / or hydraulic actuators or adjusting systems, in particular due to their inertia. (The settings can only be changed between the working strokes.)

The proposed adjusting device can be provided relatively inexpensively and also relatively compact (and thus also easy), wherein the adjusting device can be designed despite compact dimensions such that large actuating forces can be generated and applied. In addition, the proposed adjusting device is relatively easy to assemble or disassemble.

It is preferably provided that the adjusting device is arranged on the hold-down or on the other tool part and in particular on the die. The holding-down device and / or the die can be reinforced locally in the region of an arranged setting device. In particular, a stationary arrangement of the adjusting device or the adjusting devices is provided. If a plurality of adjusting devices are provided, then these can optionally be arranged or fastened (that is to say alternately) on the hold-down device and / or on the other tool part. If several actuators are provided, then these z. B. as required in form-critical areas (eg. Corner areas) are arranged. Furthermore, a uniformly distributed arrangement of the adjusting devices on the circumference of the blank holder and / or the die is possible. Preferably, the adjusting device or the adjusting devices are arranged in the outer region of the blank holder. If a plurality of adjusting devices is provided; so they can be controlled together, individually or in grouped together, which can be accomplished or prompted by a corresponding control unit.

Furthermore, it is preferably provided that the adjusting device comprises a housing (or a base body) with (at least) a height-adjustable actuator guided therein and an electromagnetic actuator (electromagnetic drive arrangement) for applying force and / or height adjustment and in particular for direct application of force and / or height adjustment of the height-adjustable Having actuator. The electromagnetic actuator is arranged or housed substantially in the housing. The housing may be formed as a dust and / or oil-tight housing. Furthermore, it is conceivable that housing with oil, Schmutzabläufen or the like equip.

The actuator of the adjusting device can be designed or configured as a reciprocating piston or as a piston-type control element. However, the actuator can also be designed differently, as explained in more detail below.

The actuator of the actuating device may comprise at least one stationary coil which, depending on the activation (i.e., depending on the degree of energization) applied to the actuator (or the reciprocating piston or the piston-type actuator) with a force or force and / or moves or deflects. For protection, the coil may be sealed. It is particularly preferred that such a coil is arranged on a housing cover and in particular on the inside of such a housing cover. Preferably, this housing cover is at least partially made of a ferromagnetic material.

The actuator of the adjusting device may further comprise at least one connected to the actuator and in particular rigidly connected tightening plate, which is magnetic with the coil can cooperate such that it is attracted together with the actuator upon activation of the coil of this, over which the actuation of the actuator takes place or whereby a force and / or an actuating movement is generated or can be generated on the actuator. Preferably, this tightening plate is at least partially formed of a ferromagnetic material.

As explained in more detail below, it is provided that the hold-down force applied by the holding-down device to at least one flange section of the sheet material is generated by a corresponding device in the press or in the tool. With the proposed adjusting device, the surface pressure generated can then at least locally reduced and / or the surface pressure distribution are changed, in which the applied holding-down force is at least partially supported by the adjusting device or the adjusting devices with relief of the flange against the other tool part or against the die.

However, it can also be provided that the tool is designed such that the entire hold-down force with which the holding down presses a flange portion of the sheet material against the other tool part or the die during forming, by at least one proposed adjusting device, d. H. with an adjusting device which has an electromagnetic actuator for actuating an actuator, is generated or can be generated. In this case, the entire hold-down force is generated electromagnetically, so to speak, and can accordingly be varied in a simple manner (or adjusted or adjusted). Ie. Accordingly, the proposed adjusting device can also be used to produce the entire holding-down force, which can be a constant and in particular a time-varying hold-down force with which the holding down presses the flange portion of the sheet material against the other tool part (or the die) during forming , be used. In this case, therefore, the generation of the hold-down force is fully integrated into the tool and realized by at least one proposed adjusting device.

Further advantages, design and training opportunities of the invention will become apparent from the following and non-limiting explanations with reference to the schematic figures.

1 shows in a plan view of a tool part with hold-down and a plurality of adjusting devices arranged on the hold-down device.

2 illustrates in a schematic sectional view of the operation of a control device.

3 shows in several individual representations an embodiment of an adjusting device with an electromagnetic actuator.

4 shows in several individual representations another possible embodiment for a control device with an electromagnetic actuator.

The directions used below relate only to the representations shown in the figures and thus may differ from the real world.

1 shows a belonging to a tool according to the invention lower tool part or lower tool 100 in a plan view looking towards the active side. The lower tool 100 has a base plate 110 with a tool stamp built on it 120 on. The tool stamp 120 is in a known manner by a hold-down 130 surround. The hold down 130 can be formed in one piece or multiple parts. With 400 is a sheet metal material to be formed (sheet metal blank), the outer contour of which is shown dotted before the forming.

At the hold down 130 are several actuators 300 arranged, whose structure and function will be explained in more detail below. The adjusting devices 300 are outside the outer contour of the sheet material 400 , in the form-critical corner areas 135 the exemplary rectangular trained hold-down 130 arranged. The corner areas 135 the hold-down 130 are, for example, by a suitable ribbing 136 or the like reinforced (which is illustrated by the illustrated dashed lines) to the stationary there arranged adjusting devices 300 adequately support and damage the hold-down 130 to prevent. In every corner area 135 are several actuators 300 arranged one above the other perpendicular to the outer edge of the blank holder 130 extending support rib 136 are placed.

2 shows a schematic partial section through one of the corner regions 135 of the tool according to the invention. Between the tool base 100 belonging downholder 130 and the tool to the top 200 belonging die 210 there is a sheet material to be formed 400 , During forming, the flange portion shown 410 of the sheet metal material 400 (This is the area in which the sheet metal material 400 between the hold down 130 and the matrix 210 is clamped) in a known manner from the hold-down 130 with defined hold-down force against the die 210 pressed, which adjusts a corresponding hold-down surface pressure. The resulting surface pressure is illustrated by the arrows p. When forming the sheet metal material 400 There is a Reibkraftbeaufschlagten relative movement of the flange 410 , which is more or less between the hold-down 130 and the matrix 210 is pulled through, which is illustrated with the two arrows M.

The material flow or sheet flow M can be influenced by changing the effective frictional force. The effective frictional force is dependent on the surface pressure p, which in turn depends on the hold-down force, with which the sheet material via the Coulomb friction law 400 or its flange portion 410 from the downholder 130 against the matrix 210 is pressed. The resulting surface pressure p can thus over the with the hold-down 130 applied holding force can be adjusted. Furthermore, the resulting surface pressure, at least locally, with the actuator 300 varied or adapted. For this purpose, the adjusting device 300 the hold down 130 and the matrix 210 when forming press apart or distance, resulting in the hold-down 130 applied holding force around the corresponding of the adjusting device 300 reduced amount of force. Ie. The holding force or hold-down pressure force which is generally generated on the press or tool side and thus predetermined can be adjusted by means of the setting device or the adjusting devices 300 can be reduced or reduced in order to vary or adapt the resulting surface pressure p and the material flow M. Incidentally, it is completely sufficient for this. that the adjusting device 300 can generate a corresponding the holding force or hold-down force counteracting force. Generating a larger travel is usually not required.

The trained as a unit adjusting device 300 has a multi-part housing 320 in which a trained as a reciprocating height-adjustable actuator 310 is stored or guided, wherein the actuator or the reciprocating piston 310 according to the invention by a likewise in the housing 320 housed electromagnetic actuator can be operated, as explained in more detail below. In the example shown, the adjusting device 300 such in the outer region of the hold-down 130 and outside the outline of the sheet material 400 Fixedly arranged that their reciprocating 310 directly against the die 210 can work. The adjusting device 300 However, it can also be done on the matrix 210 be arranged so that the reciprocating 310 against the downholder 130 can work.

3 shows the adjusting device 300 in several individual presentations. How out 3a can be seen, is the adjusting device 300 formed rotationally symmetrical, which is both for the housing 320 as well as for the trained as a piston actuator 310 applies. With 321 is also designated a rotationally symmetrical housing cover. The longitudinal axis or axis of symmetry, which also includes the movement and force generation axis of the reciprocating piston-like actuator 310 corresponds, is indicated with L.

The 3b and 3c show the adjusting device 300 in a sectional view. The housing 320 is annular and is made in particular of a non-magnetizable material. Down (where this direction refers to the illustration shown) is the housing 320 open. Upwards or to the other direction is the case 320 through a housing cover 321 locked. The housing cover 321 is at least partially and preferably formed as a whole from a magnetizable material such as iron. In the example shown, the housing cover 321 formed in one piece and one piece. On the housing cover 321 is an electromagnetic coil device (hereinafter referred to as coil only) 330 arranged, which formed in the example shown as a toroidal coil and on the inside of the housing cover 321 in the material of the housing cover 321 is embedded. The sink 330 may comprise a plurality of coil turns, which may be energized together or differently. The coil is preferred 330 made of a material with good conductivity (eg copper). Furthermore, a plurality of coils may be provided.

The height adjustable or along the longitudinal axis L longitudinally movable in the housing 320 mounted piston-type actuator 310 is in the example shown in one piece and formed in one piece and is made in particular of a non-magnetizable and preferably high-strength material. The reciprocating piston actuator or the reciprocating piston 310 has at its lower end designed as a radially projecting shoulder peripheral edge 311 on. In the illustrations shown, the actuator has 310 thus a hat-shaped contour. The guide of the reciprocating piston 310 takes place on the one hand on the inner wall of a housing cover 321 formed central bore through which the reciprocating 310 passed through and on the other hand on the inner wall of the annular housing 320 , so that a double guide or sliding bearing is present, which withstands high forces and moments. The corresponding guide surfaces are dimensioned relatively large area.

On the reciprocating piston 310 is at the inner end face of the circumferential edge or the shoulder 311 an annular tightening plate 340 fastened (for example, riveted or screwed). The suit plate 340 is z. B. formed as a circular disk and made of a magnetizable material such as, for example. Iron. Particularly preferred is the tightening plate 340 made of the same material as the housing cover 321 manufactured. The suit plate 340 can be formed in one piece or multiple parts.

The sink 330 (together with the housing cover 321 ) and the tightening plate 340 form an electromagnetic actuator, with which the reciprocating piston-like actuator 310 from the in 3b shown lower starting position in the in 3c shown upper end position can be moved, while providing large restoring forces. The between the suit plate 340 and the inside of the housing cover 321 existing air gap 350 gives the maximum possible travel or stroke for the reciprocating piston-like actuator 310 in the axial direction L, wherein the inside end face of the housing cover 321 serves as a travel limit or movement stop.

Will the coil 330 activated, ie energized, so will be inside the case 320 generates an electromagnetic field, wherein the housing cover 321 acting as a magnetic core, which concentrates the generated magnetic field in itself and in the direction of the attraction plate 340 redirects, causing this together with the reciprocating piston-like actuator 310 from the fixed coil 330 attracted and the air gap 350 is reduced. Based on the current flow through the coil 330 the recoverable force or compressive force F and / or possibly the achievable stroke can be adjusted. The housing cover is preferred 321 and the suit plate 340 made of the same magnetizable material, whereas the housing ring 320 and the reciprocating type actuator 310 are formed of a non-magnetizable material so as not to influence the generated magnetic field.

The operation of the reciprocating piston-like actuator 310 is done by energizing the coil 330 What a force and / or axial change in position of the reciprocating piston-like actuator 310 has the result, then with an electromagnetically generated force F against the die 210 presses (see 2 ), resulting in at least in the adjacent flange portion 410 the surface pressure p is reduced accordingly, as previously explained. The associated adjusting movement of the reciprocating piston-like actuator 310 is usually negligible, since it essentially depends only on the forces.

In a particularly preferred manner, the energization of the coil 330 activated, deactivated and / or varied in the course of a forming process, so that the material flow M during the forming process can be selectively changed or adapted, which in particular also dynamic (ie changing during the forming process - ie in the sense of non-static) can. Such a change or adaptation can, for example, be time-controlled and / or pull-controlled.

About the influence of the surface pressure p and thus of the material flow or sheet metal flow M can the adjusting device 300 also be used for dynamic control or regulation of the forming and in particular deep drawing process in the course of a forming process. The hold-down force or hold-down force required for a deep-drawing process is provided in a known manner directly from the press or the tool, wherein the at least one adjusting device 300 a surface pressure p or surface pressure distribution which changes dynamically during the forming process is brought about.

Such a control or regulation can take place on the basis of process variables and in particular on the basis of process variables acquired in real time. Possible process variables are press data, tool data, material parameters and / or reshaping values (forming forces, forming temperature, degree of deformation, deformation speed, flannel drawing speed and the like), which can be measured, for example, with the aid of sensors or detected in some other way. Furthermore, also the gap of the air gap 350 serve as a process variable, this gap can be measured or calculated. By evaluating such process variables, it is then possible, for example with the aid of control laws or control laws, to determine the required actuating force F at any given time and generate it promptly.

A regulation or control can, for example, proceed as follows. When closing the press or the tool is the adjusting device 300 initially not activated or energized. Only at the beginning of the forming process or at the beginning Flanscheinzug the adjusting device 300 is activated and the process variables used for the control or regulation are evaluated in order to calculate the possibly required actuating force F based thereon. Hereupon, the adjusting device 300 or their coil 330 be energized accordingly, with a force F adjusts. From the time of the switch or activating the actuator 300 or from the beginning of the forming process, the required force F is calculated cycle by cycle and adjusted if necessary. At the latest after completion of the forming process, the adjusting device 300 deactivated again. Optionally, it is provided that the adjusting device is activated only when needed and then immediately deactivated again, wherein the surface pressure p in the deactivated periods not by the adjusting device 300 being affected. This process is repeated at each press cycle. The regulation or control is accomplished by a corresponding control unit. Are several actuators 300 provided, they can be operated synchronously or asynchronously. In the case of several actuators 300 they may be identical or different and / or arranged the same or different with respect to their direction of action.

As already explained above, the reciprocating piston-type actuator 310 the adjusting device 300 by energizing the electromagnetic drive arrangement or the coil 330 from a starting position or zero position (as in 3b shown) moved to another position. When deactivating the actuator 300 , which by switching off the current flow through the coil 330 takes place, the electromagnetic field is reduced, whereupon the reciprocating piston-like actuator 310 falls back to the initial position without the presence of the magnetic attraction (applies to the 2 shown arrangement example). Optionally, the provision is also made by the of the die 210 counteracting forces. Further, a return spring for the reciprocating piston-like actuator 310 be provided, which, for example, for an intentional overhead mounting of the actuator 300 (Thus, for example, an arrangement of the adjusting device 300 at the in 2 shown die 210 meant) can be meaningful.

The previously explained adjusting device 300 is designed for use in series operation, in particular to intervene dynamically in the forming or deep drawing process, as previously explained. In the 3 embodiment shown is open at the bottom (see 3a and 3b ), so that the adjusting device 300 can be quickly and easily mounted and dismantled or disassembled for maintenance and repair purposes. Furthermore, the individual components can be quickly replaced or reworked in this way, to allow easy adaptation to given space.

In the 3 shown adjusting device 300 can be used both for new tools as well as for retrofitting or retooling an existing tool, the size (especially the height and the diameter) can be adapted to the available space. This allows flexible usability of the adjusting device 300 ,

The adjusting device 300 can one between the reciprocating piston-like actuator 310 and the housing cover 321 effective seal (or a wiper ring or the like) to prevent the ingress of dirt and / or used during forming lubricant. Fasteners and electrical connection elements are in 3 not shown.

In the 3 shown and previously explained rotationally symmetrical embodiment of an actuating device 300 has a compact yet robust construction, so that this adjusting device 300 can be easily and space-saving attached to a tool. The following will be related to 4 another embodiment explained.

4 shows in several individual representations another embodiment for a control device. In the following, only the essential differences compared to the previously explained adjusting device will be discussed. Identical and / or functionally identical components are provided with the same reference numerals, with the letter a attached for better distinction.

The adjusting device 300a has a cuboid housing 320a with a housing cover 321a on. On the housing cover 321a is a coil 330a arranged. The axially movable actuator consists of two parallel and in the axial direction L spaced plate elements 361a and 362a , the example of four pressure pins or pressure pins 370a are rigidly connected. About the guided in corresponding housing bores pressure pins 370a The guidance or storage of the entire actuator is accomplished. The lower plate element 361a is stuck with one of the coil 330a facing tightening plate 340a connected. The sink 330a (together with the housing cover 321a ) and the tightening plate 340a Form an electromagnetic actuator by energizing the stationary coil 330a can be activated ( 4c shows the starting position of the actuator), which analogous to the preceding explanations, a force F and / or a control stroke is brought about. The components 320a . 361a . 362a and 370a are made of a non-magnetic material. The components 321a and 340a are made of a magnetic material. The sink 330a is made of a material with good conductivity (eg copper). Otherwise, the preceding explanations apply analogously.

Notwithstanding the preceding explanations, an adjusting device may also be formed with a plurality of electrical or electromagnetic coils which, depending on the one another, can act with one another or against one another. Furthermore, the use of permanent magnets in such a control device is conceivable.

LIST OF REFERENCE NUMBERS

100

Lower tool (lower tool part)

110

Base plate (frame)

120

tool punch

130

Hold down (sheet holder)

135

reinforced hold-down corner area

136

Ribbing (supporting rib)

200

Upper tool (upper tool part)

210

die

300

setting device

310

Actuator (reciprocating piston)

311

Shoulder (edge)

320

casing

321

housing cover

330

Kitchen sink

340

tightening plate

350

air gap

361

lower plate element

362

upper plate element (pressure plate)

370

Pressure pin (pressure pin)

400

Sheet metal (board)

410

Flange (flange section)

p

Surface pressure (hold-down pressure)

F

force

L

Longitudinal axis (symmetry axis, axis of motion)

M

Material flow (sheet metal flow)

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102006031438 B4 [0003, 0005, 0011]

Claims (10)

Tool for forming a sheet metal material ( 400 ), - with two mutually relatively movable tool parts ( 100 . 200 ), between which the sheet material ( 400 ) can be converted, wherein one of the tool parts ( 100 ) a hold-down ( 130 ), which during forming a flange ( 410 ) of the sheet material ( 400 ) with predetermined hold-down force against the other tool part ( 200 ), and - with at least one between the hold-down ( 130 ) and the other tool part ( 200 ) actuating device ( 300 ), which during forming the hold-down ( 130 ) and the other tool part ( 200 ) can press apart in order to vary the surface pressure (p) and / or the surface pressure distribution over this, characterized in that the adjusting device ( 300 ) at least one actuator ( 310 ) and at least one electromagnetic actuator for actuating the actuator ( 310 ) having. Tool according to claim 1, characterized in that the adjusting device ( 300 ) a housing ( 320 ) with a height-adjustable actuator guided therein ( 310 ) and an electromagnetic actuator for direct application of force and / or height adjustment of the height-adjustable actuator ( 310 ) having. Tool according to claim 1 and in particular according to claim 2, characterized in that the actuator ( 310 ) is designed as a reciprocating piston. Tool according to one of the preceding claims, characterized in that the actuator comprises at least one stationary coil ( 330 ) depending on the activation of the actuator ( 310 ) is acted upon and / or moved with a force. Tool according to claim 4, characterized in that the coil ( 330 ) on a housing cover ( 321 ) is arranged. Tool according to claim 4 or 5, characterized in that the actuator further comprises a with the actuator ( 310 ) connected tightening plate ( 340 ). Tool according to one of the preceding claims, characterized in that the hold-down ( 130 ) in the region of an arranged actuating device ( 300 ) is formed reinforced. Adjusting device ( 300 ) for use in a tool according to any one of the preceding claims, wherein said adjusting device ( 300 ) is formed according to the corresponding features in one of the preceding claims. Use of an adjusting device according to claim 8 for generating the hold-down force with which the hold-down ( 130 ) during forming a flange ( 410 ) of the sheet material ( 400 ) against the other tool part ( 200 ) presses. Method for forming a sheet metal material ( 400 ) using a tool and / or a setting device ( 300 ) according to one of the preceding claims, wherein it is provided in particular that during forming in a flange section ( 410 ) of the sheet material ( 400 ) given surface pressure (p) and / or surface pressure distribution during the ongoing forming process is varied.

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