EP3393693A1

EP3393693A1 - Wedge drive

Info

Publication number: EP3393693A1
Application number: EP16819086.6A
Authority: EP
Inventors: Harald Weigelt
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-21
Filing date: 2016-12-21
Publication date: 2018-10-31
Anticipated expiration: 2036-12-21
Also published as: EP3393693B1; KR20180097617A; MX2018007665A; CN108430664A; WO2017108968A1; ES2841575T3; BR112018012375A2; KR102142201B1; US20180369893A1; DE202015106966U1; CN108430664B

Abstract

The invention relates to a wedge drive (1) for redirecting a vertical press force into a horizontal, linear working motion, the wedge drive (1) comprising a slide element (2), a driving element (4), and a slide-element holder (3), wherein the slide element (2) is arranged vertically between the driving element (4) and the slide-element holder (3), wherein the slide element (2) and the slide-element holder (3) are designed as two guide elements (2, 3), on which a sliding plate formation (5, 6, 7) is arranged, wherein the sliding plate formation is comprised by a guide device, which is designed to linearly guide the slide element (2) along the slide-element holder (3) in a sliding direction (X).

Description

cotter

The invention relates to a wedge drive for deflecting a high vertical pressing force of in particular over 100 kN in a horizontal, linear working movement according to the preamble of claim 1.

Generic wedge drives are mostly used in forming processes in which materials must be transformed under very high force and with very high precision. The main application of such wedge ^drives' is the automotive industry. For example, the wedge drives are used here for the manufacture of body parts, in particular for the processing of solid sheet metal parts, such as the trimming, punching or deformation of sheet metal parts. In such a processing of sheet metal parts work movements must be performed with extremely high manpower, which can easily be over 1,000 kN. At the same time, such working movements must be carried out with high precision, since only then can the required accuracy of fit of the body parts manufactured thereon be ensured.

It has been found that generic wedge drives are particularly well suited to meet the above requirements in the manufacture of body parts. The wedge drives are used in a press tool. The pressing tool comprises a press which exerts an extremely high pressing force in the vertical direction on the wedge drive. Depending on the forming process and wedge drive used for this purpose, the vertical pressing force exerted by the press on the wedge drive can be at least 100 kN, in particular at least 500 kN, in particular between 1,000 and 50,000 kN. The wedge drives are designed so that they can withstand a corresponding pressing force and the ver ^¬ tical press movement over which the vertical pressing force is applied to them, can convert into a horizontal, linear working movement. With the working movement then a worker can be applied, which is smaller by a certain percentage depending on the particular design of the wedge drive than the force exerted on the wedge drive vertical pressing force. An important feature of generic wedge drives is to ensure that the working movement is actually carried out linearly-only then can a wedge drive ensure sufficient precision in the implementation of a forming process.

To realize the demands placed on them in egg ^¬ nem press tool generic wedge drives are designed so that they comprise a driver element, a slider element and a slider element recording. The slider element housing is adapted to receive the vertical pressing force exerted by the vertical press movement. The slider element receiver is thus to be formed ^¬, positionally fixed to a movable press element of a press fixed to be, with which the press performs the vertical press motion. The driver element is designed to be fixed in a positionally fixed and immovable manner vertically spaced from the slider element holder, in particular to a floor element of the press tool provided for this purpose. The slider element is vertical between the slider element receptacle and the driver element. ordered and attached to the slider element receiving linearly displaceable. In the operating situation, it is due to a contact force caused by the contact force and also linearly movable on the driver element. For this purpose, a linear driver guide between the driver element and the slider element and a guide device between the slider element receiving and the slider element is provided, wherein the angle between the linear direction of the driver guide and the linear direction of the guide device can be selected specifically. The driver guide is designed to ensure a linear guide direction of the slider element along the driver element in a driver sliding direction, and the guide device is designed to ensure a linear guide direction of the slider element along the slider element receiving in a sliding direction. Driver slide direction and sliding form an angle with each other and to the vertical direction and both lie in a plane in which the vertical direction is located. The angle which the driver sliding direction forms with the sliding direction is usually in a range between 30 ° and 120 °. Now, if such a generic wedge drive is installed for its intended purpose in a press tool and the press performs a press movement, then the slider element receiving, which is connected to the movable press member moves in the vertical direction, whereas the driver element remains immovable. The slider element holder is thus moved in the vertical direction relative to the driver element. As a result, a horizontal, linear working movement of the slider element is produced, which is connected via the guide device to the slider element receiver and via the driver guide to the driver element and thus performs the linear, horizontal working movement. The transformation of the vertical press movement into a horizontal working movement takes place via that the sliding direction and the driving sliding direction form an angle of> 0 ° both to each other and to the vertical direction. In the prior art wedge drives are known with different angles between the sliding direction and Treibergleitrichtung and between the sliding direction and vertical direction or Treibergleitrichtung and vertical direction. These angles of the wedge drive are selected with regard to the angle of inclination of a part to be machined ^¬ part / body target. The auto industry has agreed to 5 ° steps. If a flange inclined downwards by 37 ° is to be cut, for example, a wedge drive with a direction of the working movement of 50 to 55 ° could be used. On the setting of these angles, the length of the displacement path of the slider element in the horizontal direction is also Festge ^¬ sets when the slider element recording travels a certain path length in the vertical direction. In addition, the degree of power transmission from the verti ^¬ cal press force on the horizontal work force Festge ^¬ sets on the angle. The horizontal direction (direction of the working movement) need not necessarily have 90 ° to the vertical direction, but may have an angle between 40 ° and 130 ° to the vertical direction.

An essential problem in the realization of generic wedge drives is to design the guides between the slider element and the slider element receptacle or between the slider element and the driver element so that the most accurate linear Arbeitsbewe ^¬ tion can be ensured when high press forces are exerted on the wedge drive , In particular, it is desirable that the working movement remains as exactly as possible linear when the slide element that performs the working movement, with a component perpendicular to the horizontal direction in which it carries out the working movement charged becomes. Because such a load occurs very frequently when the wedge drive is used for forming components, for example, when a forming tool which is attached to the slider element, impinges on a curved surface of the component during the forming process. Ideally, forces occurring transversely to the linear working movement, which occur, for example, in shear-inclined or obliquely from top to bottom working steps, should be absorbed by the wedge drive without the linearity of the working movement being impaired. Particularly critical for the maintenance of the most accurate linear working movement, the guide device between the slide element receiving and slide element. In the prior art, various ways are known to design the guide device so that it ensures a sufficiently precise guidance and at the same time a sufficient load capacity. The basic principle, which is used in generic wedge drives for the realization of the guide means, is always that the guide means is realized via a Gleitplattenformation whose sliding plates are tapered aligned with each other so that a centering of the slide element within the Gleitplattenformation is guaranteed when the slider element receptacle exerts a vertical force on the slider element. In the prior art, such guide means are realized to have a cross-section perpendicular to the sliding direction, which has the shape of a prism or the shape of a dovetail.

Although such generic wedge drives sufficiently meet the requirements placed on them. However, the production of such generic wedge drives is extreme due to the beveled guide surfaces of the guide device complicated and expensive. A departure from corresponding tapered guide surfaces to reduce the cost and cost of producing a wedge drive has proved in the prior art, however, not practicable, since then the precision and resilience of the wedge drive decreases so much that the wedge drive for the precise manufacture of components can not be used anymore. The prior art thus lacks a fundamental Prin ^¬ zip, can be realized on the up precisely working, resilient wedge drives without the need for an extremely high costs and extremely high cost is required.

The present invention is therefore based on the objective technical problem of providing a wedge drive which is as simple and inexpensive to produce and at the same time satisfies the above requirements as well as possible.

As a solution to the aforementioned object of the invention, the invention proposes a wedge drive with the features of claim 1. The wedge drive comprises a slider element, a driver element and a slider element receptacle. The slider element is arranged in a vertical direction between the driver element and the slider element receiver. The slide element and the slide element receptacle are constructed as two guide elements on which a Gleitplattenformation is arranged for providing a Füh ^¬ approximating means for linearly guiding the slide member along the slide member received in a sliding direction. The guide device comprises the sliding plate formation. The sliding direction has an angle between 10 ° and 80 °, in particular between 20 ° and 70 ° to the vertical direction. The guide device comprises a center element, which is provided on a first of the two guide elements on its side facing the second guide element. The Slide plate formation comprises at least two sliding plates, which are designed as side sliding plates and are fixed to a second of the two guide elements. For example, the ittenelement on the slider element and the Seitengleitplatten be fixed to the slider element receptacle. For example, the center element can be fixed to the slider element receptacle and the side sliding plates can be fixed to the slider element. The Seitengleitplatten are in a transverse direction which is perpendicular to the sliding direction and in particular also perpendicular to the vertical

Direction is, spaced from each other, and the central element is arranged in the transverse direction between the Seitengleitplatten. Seen in the transverse direction thus frame the Seitengleitplatten the center element. The side sliding plates are preferably designed as sliding plates produced separately from the second guide element and fastened to the second guide element. The attachment can be done for example by screws. The side sliding plates are designed such that the first guide element can slide along them without causing high frictional forces. For example, the side sliding plates may be formed as sliding plates made of bronze. The middle element can be connected to the first guide element in a material-locking manner, for example as an integral component with the first guide element, for example as a metal casting. By realizing the center element such that the center element and the first guide element are produced integrally as a one-piece component, the production of the wedge drive can be particularly simplified. In another embodiment, the central element may be formed as a separate component from the first guide element, which is fixed to the first guide element, for example via screws. For example, the middle element may be formed as a middle sliding plate, so that the second guide element at the center sliding plate can slide along with the least possible friction. For example, the center sliding plate may be formed as a sliding plate made of bronze. Due to the design of the middle element as Mittengleitplatte the friction at a relative displacement of the slide element for Schieberele ^¬ ment recording along the sliding direction between the two guide element can be particularly minimized.

The second guide element has two steps spaced apart from one another in the transverse direction, wherein each of the two side sliding plates rests on one of the two steps with a form-fitting connection acting in the transverse direction. The two stages each other thus in the transverse direction ge ^¬ genüber. A first of the two side sliding plates thus abuts with a portion of its surface against a surface portion of a first of the two stages, and a second of the two side sliding plates abuts with a portion of its surface against a surface portion of a second of the two stages. When a force is applied to the first side sliding plate toward the first step in the transverse direction, the positive locking causes the displacement of the first side sliding plate in the transverse direction. When force is applied to the second side sliding plate toward the second step in the transverse direction, the positive engagement causes the displacement of the second side sliding plate in the transverse direction to be prevented. The positive connection thus causes a prevention of a displacement of the first Seitengleitplatte when the middle element on the first Seitengleitplatte exerts a force in a positive Rich ^¬ tion along the transverse direction, while the positive connection between the second Seitengleitplatte and the two ^¬ th stage preventing a Displacement of the second Seitengleitplatte causes when the middle element on the second side sliding plate exerts a force in a negative Rich ^¬ tion along the transverse direction. The form fit is in each case ensured by the step, which in each case is formed in the second guide element, in particular, in that a height offset is provided between two surface sections, each of which is planar and spanned by the sliding direction and the transverse direction, which is realized by a flat surface, which runs along a transverse transverse direction, which is perpendicular to the transverse direction and perpendicular to the sliding direction, and in particular by the sliding direction and the transverse transverse direction is clamped. Thus, particularly preferably, the positive engagement between the first side sliding plate and the first stage acts unidirectionally in a positive direction along the transverse direction and the positive engagement between the second side sliding plate and the second stage unidirectionally in a negative direction along the transverse direction, while the

Center element is connected to the first guide element bidirectionally connected in both the positive and in the negative direction along the transverse direction secured against displacement, in particular is designed in one piece with this. In general, it should be noted at this point that "preventing movement by a form fit" always means that a movement according to the possibilities of the material used is avoided, and that attention should be drawn here to the self-evident fact that is obvious to the person skilled in the art, that the form-fitting refers to a force acting at the level of the surface or surface portion of side sliding plate and step, over which the respective elements for providing the positive fit in contact, otherwise it to a tilting of the elements to each other about an axis of rotation perpendicular The positive connection thus prevents a movement in the transverse direction, in which the elements do not simultaneously rotate about an axis of rotation perpendicular to the transverse direction. The two side sliding plates and / or the central sliding plate provided as a center element may be integrally formed. As a result, the load capacity and precision of the wedge drive can be further improved, and thereby the manufacturing costs can be further reduced.

An inventive wedge drive is thus very simple and due to the interaction of its features allows under considerable load by the press force a precise linear guidance of the slide element for carrying out a precise linear working movement of the slide element. The interplay of the features is based, in particular, on the fact that the middle element is held in the first transverse direction bidirectionally stable on the first guide element, while the side sliding plates are held stable to ^' second guide element via their form fit, while the central element is arranged in the transverse direction between the Seitengleitplatten and in particular directly abuts the Seitengleitplatten, wherein the middle element and the Seitengleitplatte are preferably integrally formed. The side sliding plates thus form a transversely acting guide frame for the middle element, in which the center element is securely guided. Since the middle element is guided safely through the side sliding plates in the transverse direction and the side sliding plates are securely guided on the second guide element and the middle element on the first guide element, the first guide element is thus securely guided to the second guide element, ie the slider element is in the transverse direction safely guided to the slider element pickup. Thus, a movement of the slider element to the slider element receiving in the transverse direction are at least largely avoided. Moreover, since exerts during the full performing a working movement of the slide ^¬ berelements the press, a press force perpendicular to the transverse direction in the vertical direction, thus allowing the wedge drive according to the invention by the interaction of its features ahme a linear, horizontal guidance of the slider element relative to Schieberauf. In addition, the interaction of the features of the wedge drive according to the invention allows a simple high-precision production of the wedge drive such that only a very small game, in particular a game of less than

2/100 mm, between the slider element and Schieberelementauf- acquisition in the transverse direction, while the slide member performs a working movement. This property of wedge drives according to the invention is based on the fact that the guide device obtains its stability in the transverse direction in that a very small number of components can be used for the guide device, wherein the components are supported by positive engagement on the slide element and the slide element receptacle, wherein in particular each slide plate the sliding plate formation is supported on the slide element or the slide element holder directly via a cross-directionally positive fit. In conventional wedge drives slide plate formations on a plurality of transversely juxtaposed sliding plates. In the manufacturing process of the sliding plates inevitably occur manufacturing tolerances, so that the juxtaposition in the transverse direction of several sliding plates inevitably leads to a game that results from the sum of the manufacturing tolerances. In the wedge drive according to the invention, a clearance caused by manufacturing tolerances can be at least largely prevented by supporting the side sliding plates on the second guide element via a transversely acting positive connection and arranging the middle element in the transverse direction between the side sliding plates, so that the distance during assembly of the wedge drive in the transverse direction between the side skids to the width of the center element in the transverse direction can be adjusted by targeted grinding of exactly one slide ^¬ plate until the distance between the side sliding plates is tuned very precisely to the width of the central element.

Particularly preferably, the wedge drive according to the invention is designed so that the central element rests directly on both side sliding plates, so that any additional game that could arise by inserting additional elements between the side sliding plates and center element per se is avoided ver ^¬ . In addition, manufacturing costs for the production of additional elements can be avoided thereby. Particularly preferably, the guide device consists of the two Seitengleitplatten and the center element and in particular a provided on the central element return stroke, said elements of the guide means are each formed in one piece in particular. The preferably provided return stroke section may be integrally formed integrally with the center element, in particular the center sliding plate provided as the center element. Particularly preferably, the sliding plate formation of the guide means consists of the two Seitengleitplatten and provided as the center element Mitttengleitplatte, as this is a particularly precise adjustment of the geometric dimensions of Seitengleitplatten and Mittengleitplatte allows, whereby a game in the transverse direction can be further reduced. The guide means may in particular, exclusively the slide plates have the Gleitplat ^¬ tenformation as only to slide the slide member to the slide element receiving required-providing sliding surfaces sliding plates. In order to provide the aforementioned advantageous properties of the wedge drive, in the provision of a middle sliding plate as center element, it is also possible in particular for the center sliding plate with the first guide element to contribute one in positive and negative direction. tive direction forms along the transverse direction form fit. Such a bidirectionally acting positive engagement can be realized particularly free of play between the first guide element and center sliding plate when the center sliding plate is integrally formed, so that the manufacturing tolerance is limited only by manufacturing a single component, whereby the clearance between the middle sliding plate and the first guide element, particularly low can be held.

In one embodiment, the middle element is arranged in each case with a play in the transverse direction of less than 0.04 mm, in particular less than 0.02 mm, in particular less than 0.01 mm, each directly on the two side sliding plates. This ensures a particularly low clearance in the transverse direction between the first guide element and the second guide element. In particular, the wedge drive according to the invention can be designed so that the slide element is slidably guided along the slider element receiving in the sliding direction over a displacement length, the slider element relative to the slider element receiving in each position along the sliding direction within the displacement length a game in the transverse direction relative to the slider element of less than 0.04 mm, in particular less than 0.02 mm. This particularly play-free realization of the guide device between the slider element receiving and slide element can be realized only by the inventive design of the wedge drive and brings the advantages mentioned with reference to the feasibility of high-precision working movements with the help of a wedge drive according to the invention.

In one embodiment, the guide device is designed such that the first guide element to the second guide element via a running in the sliding direction Displacement length is displaceable, wherein the displacement length is at least 0.5 times, in particular between 0.5 times and 3 times the extension of the slider element in the transverse direction. As a result, at the same time a robust design of the wedge drive can be ensured, so that the wedge drive is particularly well suited for receiving very high press forces, and moreover a sufficient displacement length can be ensured, so that the slide element over a sufficiently long distance in the horizontal direction a working movement can perform. Particularly preferably, the sliding plate formation, at least in a sliding portion which extends in the sliding direction and at least the displacement length, a constant cross-section perpendicular to the sliding direction. As a result, it is possible to ensure a particularly uniform and very precisely linear guidance of the slide element along the slide element receptacle over the entire displacement length.

In one embodiment, a return stroke section is provided on the side of the center element facing the second guide element, which has two holding sections which project in the transverse direction over the center element and extend in sections along the two side sliding plates in the transverse direction. For example, the return stroke section may be formed as a separately fixed to the central element plate. For example, the return stroke section may be integrally formed with the center element. For example, the center element may be formed as a center sliding plate, which has the Rückhubabschnitt, wherein the holding portions are spaced from the first guide member. In the described embodiment, it can be ensured in a particularly effective manner that the slide element is guided by the slide element receptacle during a return stroke, since return stroke forces can also be transmitted from the slide element receptacle to the slide element via the return stroke section. NEN. It should be noted that an inventive wedge drive is usually used in a press tool, wherein the slider element receptacle is connected to a movable press element. Typically, during a power stroke, the movable press member makes downward movement in the vertical direction, thereby forcing the slider member into a linear, horizontal, working motion due to the vertical relative movement between the slider member and the driver element. In a return stroke, the movable press member moves vertically in the opposite direction compared to the working stroke, ie usually vertically upwards. By providing a Rückhubabschnitts on the central element can be particularly effectively ensured that during the return stroke during which the Schieberelementauf ahme performs a relative movement in the vertical direction relative to the stationary drive element, the slide element is forced to a return movement, which is opposite to the working movement. The return stroke section extends in each case with a holding section in the transverse direction in sections along the two side sliding plates, wherein in each case one side sliding plate is arranged at least in sections between the first guide element and the return stroke section. During a power stroke, the side sliding plates exert a working force on the first guide member, while during a return stroke, a return stroke force is applied between the holding portions and the side sliding plates.

Particularly preferably, the return stroke section extends from the first guide element beyond the side slide plates to the second guide element, the holding sections each extending along a section in the transverse direction between the side slide plates and the second guide element. Each holding section thus extends over a section in the transverse direction with respect to a direction perpendicular to the transverse direction and perpendicular to the sliding direction between an associated side sliding plate and the second guide member. In the ser ^¬ embodiment of the return stroke may be particularly configured ro- bust, for example, the cut Rückhubab ^¬ be arranged in a recess provided for this purpose the second guide member. The transmission of a return stroke force between the first and second guide members can then be done over the portion in the transverse direction, in which the holding portions between the Seitengleitplatten and the second guide member are arranged, on which the Seitengleitplatten are attached. In the mentioned embodiment, the first guide element is particularly preferably designed as the slide element and the second guide element as the slide element receptacle. Because with such an embodiment of the wedge drive can be provided with a recess in the slider element receiving the Rückhubabschnitt with realization of a low profile, in particular with respect to the vertical direction, whereas no such recess in the slider element is required, so that the slider element can be made compact and provides enough surface for the approach of an additional return ^¬ spring, which supports the return stroke known as in conventional wedge drives.

In one embodiment, each side sliding plate abuts against the second guide element at least with two contact surfaces. A first contact surface of the respective side sliding plate extends in the transverse direction and in the sliding direction, wherein the respective side sliding plate is pressed by fastening means with its first abutment surface against the second guide element. Each side sliding plate also has a second abutment surface which is perpendicular to the transverse direction. Furthermore, each of the Seitengleitplatten on at least one Gleitanlagefläche, with which they on the central element is applied. The Gleitanlagefläche each Seitengleitplatte perpendicular to the transverse direction, wherein the Gleitanlagefläche and the second bearing surface on two opposite, facing away from each other sides of the respective Seiten- slide plate and wherein the first contact surface of the Seitengleitplatte, in particular exclusively, in a region extending in the transverse direction between the Gleitanlagefläche and the second contact surface extends. In the described embodiment, on the one hand a very reliable power transmission during a working stroke of the slider element receiving the slider element ensures, since the Seitengleitplatten each have a first contact surface, in the transverse direction and in the

Sliding direction extends, are pressed by fastening means against the second guide member, so that when a load of Seitengleitplatte perpendicular to the transverse direction, which occurs during normal use of the wedge drive in a working stroke, a relative movement between the second guide member and Seitengleitplatten can be reliably avoided. Particularly preferably, the Seitengleitplatten each have a second Gleitanlagefläche extending parallel to the first contact surface, wherein during a power stroke, the pressing force is transmitted via the second Gleitanlagefläche on the slide element and during the movement movement, the slide element is transmitted to the second Gleitanlagefläche on the slide element and during the working movement, the slider member slides along the second slide abutment surface adjacent thereto. Moreover, by providing a second abutment surface and a sliding abutment surface on each side sliding plate, each extending in the transversal transverse direction and ensuring contact of the side sliding plate with the middle element and secondly contact of the side sliding plate with the second guide element, si - make sure that the side sliding plate between center ment and second guide element is guided in the transverse direction, so that during a working stroke a game in the guide device in the transverse direction is prevented. In particular, each Seitengleitplatte can rest with its second to ^¬ bearing surface at the stage of the second guide member. About the contact surfaces and the Gleitanlagefläche comprising a Seitengleitplatte and via which a contact with the second guide member and the center element is ensured by the Seitengleitplatte abuts the second guide member and the central element, the guiding property of the guide means may be particularly advantageous. It should generally be noted at this point that the term "abutment of two elements" in the present description always means that the two elements are spaced a maximum of 0.01 mm apart from one another By means of the very large first contact surface, a force which is transmitted via the side sliding plate during the working stroke can be transmitted particularly reliably and uniformly to the first guide element Although the provision of considerable areas is required for this purpose, in particular the provision of a contact surface, ie second contact surface and sliding contact surface, which is smaller than the contact surface to be provided, ie first, is sufficient Contact surface, for transmitting the force occurring during the working stroke.

Particularly preferably, the first contact surface is spanned by a plane which is spanned by the transverse direction and the sliding direction. Particularly preferably, the second contact surface and the Gleitablagefläche are respectively spanned by a plane passing through the transverse transverse direction and the sliding direction is clamped. By a corresponding planar design of the plant surfaces and the Gleitanlageflächen the Seitengleitplatten a particularly reliable power transmission in a working stroke and a particularly reliable guidance is ensured perpendicular to the transverse direction.

In one embodiment, each side sliding plate has a third abutment surface with which it rests against the second guide element, wherein the third abutment surface extends away from the first abutment surface in the transverse direction, starting from the second abutment surface. As a result, an even better guidance of the side sliding plate relative to the second guide element and thus even better fastening of the side sliding plate to the second guide element can be ensured. Particularly preferably, the step against which the side sliding plate assigned to it extends between the first and the third abutment surface, wherein the second abutment surface bears against the surface of the step forming the vertical offset of the step. The height offset of the step forming surface naturally extends in the transverse transverse direction and is particularly preferably formed as a plane which is spanned by the transverse transverse direction and the sliding direction. Particularly preferably, the third contact surface is spanned by a plane which is spanned by the transverse direction and by ¹ the sliding direction, whereby a particularly stable investment and thus fixing the Seitengleitplatte can be ensured on the second guide element.

Preferably, each Seitengleitplatte on a Rückhubanla- surface, which extends in the transverse direction between the Gleitanlagefläche and the first bearing surface. A return stroke section provided on the center element can rest on the return stroke contact surface, which causes a return stroke on the return stroke occurring force can be transmitted. Particularly preferably, the Rückhubanlageflache is clamped ^¬ by a plane which is spanned by the transverse direction and the sliding direction. Particularly preferably, the Rückhubanlage- surface is smaller than the first contact surface, as on the Rückhubanlagefläche only the force occurring during a return stroke is to be transmitted, which is substantially smaller than the force to be transmitted over the first contact surface, which occurs during the power stroke. By the preferred embodiment, a particularly small size of the wedge drive can be ensured, including in particular the provision of a pos ^¬ lichst small Rückhubanlagefläche can contribute. It should be noted at this point that, for the realization of wedge drives, compliance with small sizes is a particularly desirable goal, which is conventionally difficult to achieve due to the necessarily very robust design of a wedge drive.

In one embodiment, the middle element is designed as a central sliding plate and fixed to the first guide element, wherein the first guide element has a surface course graduated along the transverse direction on its surface facing the center sliding plate. A ent ^¬ long the transverse direction stepped surface contour tet importance that has, at a cross-sectional view perpendicular to the sliding direction of the surface profile has a stepped profile as a function of the transverse direction. It thus occur depending on the transverse direction step offsets in a direction which is perpendicular to the transverse direction and perpendicular to the sliding direction. The Mittengleitplatte has on its side facing the first guide member surface a stepped surface corresponding to the course of the first guide elements ^¬ surface profile, whereby through the mutually corresponding surface gradients acting in a transverse direction of the positive connection between the first guide element and the middle sliding plate is ensured. The middle sliding plate, with its stepped surface course, is in contact, at least in sections, with the stepped surface course of the first guide element. The corresponding surface courses are preferably designed so that they provide a bidirectional positive connection along the transverse direction between the middle sliding plate and the first guide element. This means that the positive locking both at a

A force acting on the middle sliding plate along the transverse direction in a positive direction as well as a force acting on the center sliding plate along the transverse direction in a negative direction prevents movement of the middle sliding plate in the transverse direction relative to the first guiding element.

In one embodiment, the stepped surface course of the first guide element is at least partially, in particular completely, formed by three fixing surfaces of the guide element. A first fixation surface is arranged in the transverse direction between a second and a third fixation surface. The first fixing surface is spanned by a plane which is spanned by the transverse direction and by the sliding direction. The second and third fixing surfaces are each defined by a plane which is spanned by the transverse transverse direction and by the sliding direction. In this preferred embodiment, guidance of the middle sliding plate in the transverse direction is bidirectionally ensured by the second and third fixing surfaces, since such is provided over the course of the second and third fixing surfaces and the first fixing surface arranged therebetween, which in turn runs in the transverse direction and the sliding direction Contact between the middle sliding plate and the first guide element can be ensured, in which the middle sliding plate both is applied to a force acting in the positive and negative direction along the transverse direction respectively at the second and third fixing surface, so that a movement of the center sliding plate along the transverse direction is avoided. In the described embodiment is particularly preferred that the second and the third fixing surface extend from the first fixing surface towards the second guide member, wherein the Mittengleitplatte between the second and third Fixierungsflä ^¬ surface is arranged and wherein the Mittengleitplatte about ih ^¬ ren corresponding surface profile is applied to the three Fixie ^¬ approximately surfaces and is pressed by fastening means against the first fixing surface. In this embodiment ^¬ form thus form the three fixing surfaces a recess in which a portion of the middle sliding plate is arranged. The described embodiment can thus be particularly sturdy designed and easy to manufacture, since the Mittengleitplatte a ^¬ can be set by providing a corresponding recess in the massive second guide element with their kor ^¬ respondierenden surface profile in said recess, without the need for delicate operations of Mittengleitplatte or first Führungsele ^¬ ments are required. By the Mittengleitplatte is pressed by fastening means against the first fixing surface, in addition can be ensured that with ^¬ tengleitplatte is reliably held in the plane formed by the three fixing NGS faces recess, which further improves the guiding properties of the guide means. Particularly preferably, the surface of the first fixing area is at least twice as large as the common ^¬ same area of the second and third fixing surface, whereby the fact may be taken that via the first fixing area, a greater force is carry over ^¬ than second and third fixation surfaces. Consequently, this can be a particularly robust wedge drive be realized with the smallest possible size.

Particularly preferably, the sliding plate formation consists of the two side sliding plates and the middle sliding plate. As a result, on the one hand the play of the guide device can be reduced to a minimum, since only a few components are provided for the realization of the guide device, are to be considered in the manufacturing tolerances. In addition, the production costs can be kept particularly low. In particular, the guide device, which guides the slider element to the slider element receiving linear, consist of the sliding plate formation.

In one embodiment, all the surfaces over which the first guide element and the second guide element are in contact with the sliding plates of the slide plate formation and in particular also the slide plates for guiding the slide element to the slider element receiving as flat surfaces which are either perpendicular to the transverse direction or perpendicular to the transverse transverse direction. By providing only mutually perpendicular surfaces over which the two guide elements are in contact with the sliding plates, the production of the wedge drive can be particularly simplified, as this cost production tools can be used to implement the wedge drive, such as a three-axis milling machine. By means of such particularly cost-effective production tools, mutually inclined surfaces can not be realized, but an embodiment of the components can be realized in such a way that they have exclusively boundary surfaces which run either perpendicular to the transverse direction or perpendicular to the transverse transverse direction. Over all surfaces, over which the first guide element and the second guide element with the sliding plates of Gleitplat- In the described embodiment, both a guide with respect to the vertical pressing force and a guide with respect to the occurring during the working movement of the slider element in the transverse direction force is ensured. In particular, the common area of the surfaces that are perpendicular to the transverse transverse direction may be greater than the common area of the surfaces that are perpendicular to the transverse direction. This can take into account the fact that the force causing the working movement, which occurs during a working stroke, is greater than the force acting along the transverse direction during the working movement. In particular, the common area of the surfaces perpendicular to the transverse transverse direction may be at least twice as large as the common area of the surfaces perpendicular to the transverse direction.

In general, it can be advantageous for the slide element to be designed as the first guide element and for the slide element receptacle to be the second guide element. By way of this, a particularly small size can be realized, and, moreover, a particularly uniform force transmission from the slide element receptacle to the slide element can be ensured via the side sliding plates framing the middle element.

In one embodiment, the Seitengleit- plates in their extension length in a direction that is perpendicular to the sliding direction and perpendicular to the transverse direction, ie in the transverse transverse direction, differ by less than 0.01 mm, this extension length is at least 10 mm. Such an identical as possible embodiment of the Seitengleitplatten with respect to their extension length in the transverse transverse direction can ensure a particularly play-free guide device. Such a high A precisely identical design of the side sliding plates can be realized by setting the mentioned extension lengths of both side sliding plates in a single process step, in which the two side sliding plates are simultaneously adjusted to the desired extension length via exactly one tool, such as a milling machine become.

Particularly preferably, the side sliding plates abut in each case on the first guide element, the middle element and on the second guide element, wherein the middle element bears against the first guide element and on the side sliding plates and abuts in particular on the second guide element. About the contact ensured by the concern, the guiding property of the guide device can be particularly advantageous. In one embodiment, the central element is spaced from the second guide element. This embodiment is particularly easy to implement, since then the extension of the central element in the transverse transverse direction does not need to be set to a very high degree exactly. In one embodiment, the middle element also bears against the second guide element. In this embodiment, a particularly reliable power transmission is ensured during the power stroke.

In one embodiment, slide slip plates are provided on the slider element and drive slide plates are provided on the drive element, the slide plates and driver slide plates forming a driver guide for linearly guiding the slider element along the driver element in a driver slide direction, the driver slide direction being in a plane perpendicular to the transverse direction. wherein the driver sliding direction forms an angle of at least 20 °, in particular between 30 ° and 120 ° with the sliding direction. By providing sliding guides plates on the slider element on its side facing the driver element and by the provision of Treibergleitplatten on the driver element on its side facing the slider element, a driver guide can be ensured over which the linear guide that provides the guide means can be further supported. This contributes in particular to the fact that the driver sliding direction runs in egg ^¬ ner plane which is perpendicular to the transverse direction, in particular, the sliding direction is in this plane. Providing a corresponding angle between

Driver sliding direction and sliding direction ensures the conversion of a vertical press force generated by a vertical press movement in a horizontal working movement.

The invention further relates to a method of manufacturing a wedge drive, wherein a thickness of the two side sliding plates defines the extension length of the side sliding plates in a direction perpendicular to the sliding direction and perpendicular to the transverse direction when the side sliding plates are installed in the wedge drive , is set simultaneously and together via a tool. The width of exactly one of the Seitengleitplatten, the plate, the extension length of this Seitengleit- is specifics ^¬ DERS preferably defined along the transverse direction when these sides tengleitplatte is incorporated in the wedge drive, set in consideration of the distance between the stages of the second guide member in the transverse direction and the Erstre ^¬ ckungslänge of the central element and the other Seitengleitplatte in the transverse direction. By simultaneously adjusting the thicknesses of the Seitengleitplatten a particularly uniform linear guidance of the slide element can be ensured during a power stroke. Because the simultaneous adjustment of the thickness of both side sliding plates can ensure that no height offset in the transver- Salen transversal direction in the guide device along and between the Seitengleitplatten occurs, which is a prerequisite for the realization of a uniform, linear guide. By adjusting the width of exactly one of the two side sliding plates as a function of the distance between the steps and the extension length of the middle element and the other side sliding plate, the realization of the wedge drive can take place in that finished manufactured components, in particular slider element, Schieberele- mentaufnähme, the center element and the other side sliding plate, are measured in their dimensions in the transverse direction and then the width of the particular Seitengleitplatte is specifically adapted to the dimensions. In this way, a particularly good guidance along the transverse direction can be ensured by the guide device.

The invention will be explained in more detail below with reference to four figures. Show it:

In various schematic diagrams schematic views from different angles to an embodiment of a wedge drive according to the invention;

In a schematic representation of a schematic view of a first component of the embodiment of Figure 1;

In a schematic representation of a schematic view of another component of the embodiment of Figure 1; Figure: In a schematic representation of a section of the Cross-section of the embodiment according to Figure 1 perpendicular to the sliding direction;

FIG. 5: shows a detail of the

Cross section perpendicular to the sliding direction of another embodiment.

In Figure 1, comprising figures la, lb and lc is shown angles schematically an embodiment of a wedge drive 1 according to the invention in various schematic diagrams from different ^¬. It can be seen from FIG. 1 that a wedge drive according to the invention comprises a slide element 2, which is arranged vertically between a slide element receptacle 3 and a driver element 4. The slider element 2 is connected via a guide device with the

Slider element receptacle 3, which in the present case comprises a Gleitplattenformation consisting of three sliding plates, namely a Mitttengleitplatte 7 and two side sliding plates 5, 6. In addition, the slider element 2 is connected to the driver element 4 via a driver guide comprising Schiebergleitplatten 22, the on the driver element 4 facing side of the slide element 2 angeord ^¬ net are. In addition, the slider element 2 is connected to the driver element 4 via a return device 21, via which it is ensured that the slider element 2 remains connected to the driver element 4 even during a return stroke in which the slider element holder 3 moves vertically away from the driver element 4.

From Figure 1, the basic structure of a wedge drive 1 according to the invention thus clearly visible. The driver element 4 is attached via fastening means, in this case fastening screws 400, to a base element of a press ^¬ tool. The slider element receptacle 3 has in FIG. 1 visible feedthroughs, via which it can be moved by means of Fastening means, such as screws, can be attached to a movable press element of the press tool. In operation, during a power stroke, the movable press member moves vertically relative to the floor member to which driver element 4 is attached. During a power stroke, the movable press member moves toward the floor member, ie, the driver member 4, during a return stroke, it moves vertically away from the floor member, ie, from the drive member 4.

From Figure 1 it can be seen that the guide means between slide element 2 and slide element receptacle 3 ensures a linear guidance of the slide element 2 along the slide element receptacle 3 along a sliding direction X, which forms an angle of approximately 30 ° to the vertical direction. The driver guide ensures a linear guidance of the slider element 2 along the driver element 4 along a driver sliding direction, which forms an angle of approximately 80 ° to the vertical direction. Treibergleitrichtung and sliding X form an angle of approximately 50 ° to each other. From this structural design of the wedge drive 1, which can be seen from Figure 1, it follows that the slide element 2 performs a horizontal, linear working movement between the slide element holder 3 and driver element 4, when the slider element holder 3 is moved vertically to the driver element 4 out. The return device 21 ensures at the same time that the slider element 2 during a return stroke, ie when the slider element receptacle 3 is moved vertically away from the driver element 4, performs a horizontal, linear return movement between the slide element holder 3 and driver element 4, the negative mapping of the linear working movement during a working stroke represents ^¬ . The return device 21 is fixedly fixed to the slider element 2 and engages behind corresponding sliding projections which are arranged on the driver element 4 are so that the slider element 2 is always connected to the driver element 4 during a return stroke. The embodiment of a wedge drive 1 according to the invention shown in Fi gur ^¬ 1 further comprises a first support member 31 and a second support member 32, which are firmly fixed to the slide element receiving third The second support member 32 be ^¬ limits the return movement of the slider element 2 during a return stroke, since the second support member 32 provides a stop for the Mittengleitplatte 7 berelement on the rail is secured. 2 The first support member 31 serves to support a return spring, such as a gas spring. Such a return spring is supported on the first support member 31 and is compressed during a power stroke and helps to move the Schieberele- ment 2 during a return stroke to its original position, in which it is attached to the second support member 32 with attached to it Mitttengleitplatte 7 is present.

From the combination of Figures 1, 2, 3 and 4, the structure and operation of the guide means of the illustrated embodiments of the wedge drive 1 according to the invention is particularly clear. The guide device comprises a sliding plate formation, which consists of the middle sliding plate 7 and the two side sliding plates 5, 6. The two Seitengleitplatten 5, 6 are fixed to the slider element receiving 3, which acts as a second guide member, whereas the Mittengleitplatte 7 is fixed to the slider element 2, which acts as a first guide member. In the described embodiment, the center element thus forms ^¬ ge 7 by the Mittengleitplatte 7 of Gleitplattenformation. Basically, it can be seen from the figures that all surfaces over which the slide element 2 and the slide element holder 3 are in contact with the slide plates 5, 6, 7 and the slide plates 5, 6, 7 are spanned by planes, ie as flat surfaces excluded are formed, which are either perpendicular to the transverse direction Y or perpendicular to the transverse transverse direction Z. In this case, the transverse transverse direction Z is defined by the fact that it is perpendicular to the transverse direction Y and perpendicular to the sliding direction X.

The attachment of the middle sliding plate 7 to the slider element 2 is particularly well from the synopsis of Figures 2 and 4 can be seen. The slider element 2 has a stepped surface course, which is formed by three fixing surfaces 71, 72, 73. The first fixing surface 71 is located in the transverse direction between the second and third fixing surface 72, 73. The first fixing surface 71 is defined by a plane which is spanned by the transverse direction Y and the sliding direction X. Second and third fixing surfaces 72, 73 are respectively spanned by the transverse transverse direction Z and by the sliding direction X and also flat. The center sliding plate has a surface course corresponding to the stepped surface course of the slide element 2, in that the center slide plate 7 has on its side facing the slide element 2 a cross section perpendicular to the sliding direction X, which represents the section of a rectangle. The middle sliding plate 7 can thus be inserted into the recess formed in the slider element 2 by the three fixing surfaces. In this case, the dimensions in the transverse direction of the middle sliding plate 7 are provided so that they rest against the entire surface of all three fixing surfaces. In addition, the middle sliding plate 7 is connected by screws to the slider element 2, which pass through bushings in the middle sliding plate 7, which are shown in FIG. A corresponding screw is indicated in FIG. About these

Bolts 700, the middle sliding plate 7 is pressed against the first fixing surface 71 of the slider element 2. By the interaction of the exerted by the screws 700 Pressing force on the middle sliding plate 7 toward the slider element 2 and the fixed fixation in the transverse direction Y of the middle sliding plate 7 on the stepped surface course, which is formed by the three fixing surfaces 71, 72, 73, is a very resilient and rigid connection between the middle sliding plate 7 and slider element 2 ensured.

The attachment of the Seitengleitplatten 5, 6 on the Schie ^¬ berelementaufnahme 3 is particularly well taken from the synopsis of Figures 3 and 4. The slider element receptacle 3 has two steps spaced apart from one another in the transverse direction Y, wherein each of the side sliding plates 5, 6 rests against one of the two steps. In this case, each of the Seitengleitplatten 5, 6 with a first contact surface 51, 61, a second bearing surface 52, 62 and a third bearing surface 53, 63 on the slider element receptacle 3 at. The second contact surface 52, 62 of the Seitengleitplatten 5, 6 is in each case spanned by a plane which is spanned by the sliding ^¬ direction X and the transverse transverse direction Z, and is located on the height offset of the respective stage forming surface of the slider element receptacle 3. The side sliding plates 5, 6 are each pressed by a screw 500, 600 with their first contact surface 51, 61 and their third abutment surface 53, 63 against the slider element receptacle. Characterized in that the side sliding plates 5, 6 are pressed by means of the screws 500, 600 with their first and third abutment surfaces 51, 61, 53, 63 against the slider element receptacle 3 and at the same time with their second abutment surfaces 52, 62 at the height offset of the step abut the forming surface of the slide element receptacle 3, which is also flat and is spanned by the transverse direction Z through the sliding direction X, the sliding plates 5, 6 firmly fixed to the slider element holder 3 such that a relative movement of the sliding plates 5, 6 along the transverse direction Y relative to the slide element holder 3 best- is possible prevented.

The individual elements of the embodiment of the wedge drive 1 according to the invention, as shown in particular in FIG. 4, are matched to one another such that the middle sliding plate 7 bears directly against the sliding contact surfaces 55, 65 of the side sliding plates 5, 6 framing them in the transverse direction. During a displacement of the slide element 2 along the slide element receptacle 3 along the sliding direction X, which runs perpendicular to the plane in the cross section according to FIG. 4, the middle slide plate 7 slides along the slide contact surfaces 55, 65 of the two side slide plates 5, 6. As a result, the middle sliding plate 7 with its two transversely opposite sides on the two Seitengleitplatten 5, 6 rests and beyond the Seitengleitplatten each have on one side in the transverse direction a Gleitanlagefläche 55, 65 and on its opposite side in the transverse direction a second contact surface 52, 62, which is Mittengleitplatte 7 thus firmly between the Seitengleitplatten 5, 6 out, without the Mitttengleitplatte 7 can move in the transverse direction Y appreciably relative to the slider element receptacle 3. Moreover, since the middle sliding plate 7 is bi-directionally connected with the slider element 2 bidirectionally and fixed to the slider element 2 as explained above, the described embodiment thus ensures a linear guidance of the slider element 2 along the sliding direction X on the slider element receiver 3 without the slider element 2 performing a movement relative to the slider element receptacle 3 along the transverse direction Y.

In particular, from the synopsis of Figures 1 and 4, the return stroke 74 of the center slide plate 7 can be seen. The return stroke portion 74 has two holding portions which extend in each case in the transverse direction over a portion along the two Seitengleitplatten 5, 6, wherein they are arranged in this section along the transverse direction with respect to the transverse transverse direction Z between the Schieberelementauf ^¬ measure 3 and the respective Seitengleitplatten 5, 6. The Seitengleitplatten 5, 6 are thus with a Rückhubanlageflache 54, 64 each at a holding portion of the return stroke of the Mittengleitplatte 7. This ensures that in a return stroke in which the slider element holder 3 is moved away from the driver element 4 vertically upward, the slider element receptacle 3 via the contact between Mittengleitplatte 7 and side ^¬ slide plates 5, 6 on the holding portions and Rückhubanlageflachen 54, 64 the Slider element 2 also acted upon by a vertically acting upward force, so that the slider element 2 is forced back into its starting position ^¬ , in which the middle sliding plate 7 rests against the second support member 32.

FIG. 5 schematically shows the cross section perpendicular to the sliding direction X of a further embodiment of a wedge drive 1 according to the invention. A significant difference between the embodiment according to Figure 5 and the embodiment shown in Figures 1 to 4 is that the central element 7 is formed integrally with the slider element 2, ie slide element 2 and center element 7 are formed as an integrally manufactured component, here as cast metal body. As explained in the embodiment according to FIGS. 1 to 4, a stable linear guidance of the slide element 2 along the sliding direction X on the slide element receptacle 3 is ensured even in the embodiment according to FIG. 5, in that the middle element 7 is arranged in the transverse direction Y between the two side slide plates 5, 6 is arranged, wherein the Seitengleitplatten 5, 6 each with their Gleitanlageflächen 55, 65 with very little clearance of less than 0.02 mm at the center element 7 abut. As in the case of the embodiment according to FIGS. 1 to 4, also in the embodiment according to FIG. 5, the pressing force occurring during a working stroke is transmitted from the slider element receptacle 3 to the slider element 2 via the side sliding plates 5, 6. In this case, this power transmission takes place via the first contact surfaces 51, 61 of the slider element receiving the Seitengleitplatten 5, 6 and then from the Seitengleitplatten 5, 6 on the slider element 2 via two Gleitanlageflächen parallel to the first contact surfaces 51, 61 and with respect to the transversal transverse direction Z are arranged on the ends of the side sliding plates 5, 6 opposite the first abutment surfaces 51, 61. A problematic for the linearity of the guide between the slider element 2 and Schiebeelement- recording 3 force along the transverse transverse direction Y is received by the guide device of the embodiment of Figure 5 by the Seitengleitplatten 5, 6 via their Gleitanlagenflächen 55, 65, the middle element 7 lead and even stand by their second contact surfaces 52, 62 at the stages of the slider element receptacle 3 under positive engagement in the transverse transverse direction Y to the slider element receptacle 3. In the embodiment according to FIG. 5, a return stroke section 74 designed as a separate component is furthermore provided. This return stroke section 74 is firmly fixed to the center element 7 by means of screws 700 and has two holding sections, each of which extends over a section along the transverse transverse direction Y along one of the two side sliding plates 5, 6. As explained in connection with the embodiment according to FIGS. 1 to 4, the arrangement of the return stroke section 74 on the middle element 7 with its relative position to the side sliding plates 5, 6 ensures that, after a working stroke, low return stroke, the slide member 2 is forced back into its starting position ^¬ before performing the power stroke, in which, in an embodiment, not shown, the middle element 7 rests on the second support member 32 as explained above. In the embodiment illustrated in Figure 5 exporting ^¬ approximate shape of the return stroke section 74 is formed as a separate slide plate, which surface is designed such that during the return stroke, in which the return stroke section 74 to the Seitengleitplatten 5, 6 slides along sections, egg ne very small frictional force is present. In the described

Embodiment, the return stroke portion 74 is formed as a sliding plate made of bronze.

Ma / sk

Applicant:

Harald Weigelt

51515 Kürten

Wedge drive reference list

1 wedge drive

2 slide element

3 slider element receiving

4 driver element

5 side sliding plate

6 side sliding plate

7 middle sliding plate

21 return device

22 sliding plates

31 First support element

32 second support element

51, 61 First contact surface

52, 62 Second contact surface

53, 63 Third contact surface

54, 64 Rückhubanlagefläche

55, 65 Sliding surfaces

71 First fixation area

72 Second fixation area

73 Third fixation area

74 return stroke section

400 fixing screw

500 screw Screw screw

Claims

cotter

claims

Wedge drive (1) for deflecting a vertical pressing force into a horizontal, linear working movement, the wedge drive (1) comprising a slide element (2), a driver element (4) and a slide element holder

(3), wherein the slider element (2) is arranged vertically between driver element (4) and slide element receptacle (3), wherein the slide element (2) and the slide element receptacle (3) as two guide elements

(2, 3) are formed, on which a slide plate formation (5, 6, 7) is arranged, wherein the slide plate formation is comprised of a guide device, which for linear guiding of the slide element (2) along the slide element receptacle (3) in a sliding direction ( X), characterized in that the guide device comprises a central element which is provided on a first of the two guide elements (2, 3) on its side facing a second of the two guide elements (2, 3), the slide plate formation (5 , 6, 7) comprises at least two side sliding plates (5, 6) fixed to a second of the two guide elements (2, 3) and arranged in a transverse direction. Direction (Y), which is perpendicular to the sliding direction (X), are spaced from each other, wherein the central element (7) in the transverse direction between the side sliding plates (5, 6) is arranged, wherein the second guide element (2, 3) two in the transverse direction (Y) spaced apart steps, wherein each of the two Seitengleitplatten (5, 6) abuts in each case one of the two stages with a force acting in the transverse direction (Y) form fit.

Wedge drive (1) according to claim 1, characterized in that the middle element (7) with a clearance in the transverse direction (Y) of less than 0.04 mm, in particular less than 0.02 mm directly to the two side sliding plates (5, 6) is arranged.

Wedge drive (1) according to one of the preceding claims, characterized in that the guide device is designed such that the first guide element (2, 3) to the second guide ^¬ element (2, 3) via a in the sliding direction (X) extending sliding length guided by the guide means is displaceable, wherein the displacement length is at least 0.5 times, in particular between a 0.5 times and 3 times the extension of the slide element (2) in the transverse direction (Y), wherein in particular the slide plate formation ( 5, 6, 7) at least in a sliding portion, which extends in the sliding direction (X) and has at least the displacement length, has a constant cross-section perpendicular to the sliding direction.

Wedge drive (1) according to one of the preceding claims, characterized in that on the second guide element (2, 3) facing side of the central element (7) is provided a Rückhubabschnitt having two holding portions which protrude in the transverse direction (y) on the central element and in the transverse direction (Y) sections along the two side sliding plates (5, 6).

Wedge drive (1) according to claim 4, characterized in that the return stroke section (74) extends from the first guide element (2, 3) beyond the side sliding plates (5, 6) to the second guide element (2, 3), wherein the holding portions each extend along a portion in the transverse direction (Y) between the side sliding plates (5, 6) and the second guide member (2, 3).

Wedge drive (1) according to one of the preceding claims, characterized in that each side sliding plate (5, 6) bears against the second guide element (2, 3) at least with two abutment surfaces (51, 52, 61, 62), a first abutment surface (5). 51, 61) extends in the transverse direction (Y) and the Seitengleitplatte (5, 6) via fastening means (500, 600) with the first bearing surface (51, 61) against the second guide element (2, 3) is pressed, and wherein a second abutment surface (52, 62) is perpendicular to the transverse direction, each Seitengleitplatte (5, 6) with at least one Gleitanlagefläche (55, 65) on the central element (7), wherein the Gleitanlagefläche (55, 65) perpendicular to the transverse direction (Y ), wherein the Gleitanlagefläche (55, 65) and the second bearing surface (52, 62) lie on two opposite, facing away from each other sides of the respective side sliding plate (5, 6) and wherein the first bearing surface (51,

61) of the respective side sliding plate (5, 6) extends in a region extending in the transverse direction between the sliding abutment surface (55, 65) and the second abutment surface (52, 62).

Wedge drive (1) according to claim 6, characterized in that the first bearing surface (51, 61) is spanned by a plane which is spanned by the transverse direction (Y) and the sliding direction (X), and in that the second bearing surface (52, 62) and the Gleitanlagefläche (55, 65) are each spanned by a plane which is spanned by the transverse transverse direction (Z) and the sliding direction (X).

Wedge drive (1) according to one of claims 6 or 7, characterized in that each side sliding plate (5, 6) has a third abutment surface (53, 63), with which it bears against the second guide element, wherein the third abutment surface (53, 63) starting from the second abutment surface (52,

62) in the transverse direction (Y) from the first abutment surface (51, 61) away, wherein in particular the third abutment surface (53, 63) is spanned by a plane passing through the transverse direction (Y) and through the sliding direction (X) is stretched.

Wedge drive (1) according to one of the preceding claims, characterized in that each side sliding plate (5, 6) a Rückhubanlagefläche (54, 64) which extends in the transverse direction (Y) between the Gleitanlagefläche (55, 65) and the first bearing surface (51, 61) and which is in particular spanned by a plane passing through the transverse direction

(Y) and the sliding direction (X) is clamped, wherein the Rückhubanlagefläche (54, 64) is smaller than the first bearing surface (51, 61).

10. Wedge drive according to one of the preceding claims, characterized in that the central element (7) is designed as Mittengleitplatte (7), which is covered by the Gleitplattenformation, wherein the first guide element (2, 3) along the transverse direction (Y) graduated Surface course on its center sliding plate (7) facing surface and the Mittengleitplatte (7) on its first guide element (2, 3) facing surface has a corresponding with the stepped surface course surface profile, wherein through the mutually corresponding upper surface courses a in the transverse direction (Y) acting form-fit between the first guide member and the Mitttengleitplatte (7) is ensured.

11. Wedge drive (1) according to claim 10, characterized in that the stepped surface course of the first guide element (2, 3) is at least partially formed by three fixing surfaces (71, 72, 73) of the guide element (2, 3), wherein a first Fixing surface (71) in the transverse direction (Y) between a second and a third fixing surface (72, 73) is arranged, wherein the first fixing surface (71) is spanned by a plane passing through the transverse direction (Y) and Sliding (X) is clamped, and wherein the second and third fixing surface (72, 73) are each spanned by a plane which is spanned by the transverse transverse direction (Z) and by the sliding direction (X), in particular the second and the drit ^¬ te fixation surface (72, 73) starting from the first fixing surface (71) to the second guide element (2, 3) towards extend, said Mittengleitplatte (7) between the second and third fixing surface (72, 73) is arranged and wherein the Mittengleitplatte (7) over its corresponding surface profile at the three fixing surfaces (71, 72, 73) is present and is pressed by fastening means against the first fixing surface (71).

12. Wedge drive (1) according to one of the preceding claims, characterized in that the guide device consists of the middle element (7) and of the two Seitengleitplatten (5, 6) and in particular designed as a separate component return stroke (74), in particular the Center element (7) is designed as Mittengleitplatte and the Gleitplattenformation (5, 6, 7) consists of the two Seitengleitplatten and the Mittengleitplatte (7).

13. Wedge drive (1) according to one of the preceding claims, characterized in that all surfaces over which the first guide element (2, 3) and the second guide element (2, 3) with the sliding plates of Gleitplatte formation (5, 6, 7) are in contact for guiding the slide element (2) to the slide ^{element receptacle} (3) as flat surfaces are ^{ausgebil ¬} det, either perpendicular to the transverse direction (Y) or perpendicular to the transverse transverse direction (Z) ver to run .

14. Wedge drive (1) according to one of the preceding claims, characterized in that the slide element (2) as the first guide element (2, 3) and the slider element receptacle (3) as the second guide element (2, 3) is formed.

15. Wedge drive (1) according to one of the preceding claims, characterized in that the Seitengleitplatten (5, 6) in their Erstreckunglänge in a direction which is perpendicular to the sliding direction (X) and perpendicular to the transverse direction (Y) to less than 0.01 mm, this elongation length being at least 10 mm.

16. Wedge drive (1) according to one of the preceding claims, characterized in that the Seitengleitplatten (5, 6) in each case on the first guide element (2, 3), the central element (7) and on the second guide element (2, 3) in which the central element (7) rests against the first guide element (2, 3) and against the side sliding plates (5, 6) and bears in particular against the second guide element (2, 3).

17. Wedge drive (1) according to one of the preceding claims, characterized in that on the slide element (2) Schiebergleitplatten (22) and on the driver element (4) Treibergleitplatten are provided, wherein the Schiebergleitplatten (22) and the Treibergleitplatten form a driver guide to linear guiding of the slider element (2) along the driver element (4) in a driver slide direction, the driver slide direction extending in a plane perpendicular to the transverse direction (Y), the driver slide direction forming an angle of at least 20 °, in particular between 30 ° and 120 °, with the sliding direction (X) ,

18. A method of manufacturing a wedge drive according to one of the preceding claims, wherein a thickness of the two side sliding plates, which defines the extension length of the Seitengleitplatten in one direction, di perpendicular to the sliding direction and perpendicular to the transverse direction when the Seitengleitplatten installed in the wedge drive In particular, the width of exactly one of the side sliding plates that defines the extension length of this side sliding plate along the transverse direction when this side sliding plate is installed in the wedge drive is set in consideration of the distance between them stages of the second guide member in the transverse direction and the extension length of the center member and the walls ^¬ ren Seitengleitplatte in the transverse direction.