DE102006014282A1 - Clamping system for sheet metal components to be joined comprises two beds which hold components and can be fastened together by couplings mounted at their ends which push them together - Google Patents

Abstract

Clamping system for components (B1, B2) to be joined comprises two beds (4, 6) which hold the components. These can be fastened together by couplings (16, 17) mounted at their ends which push the beds together. An independent claim is included for a method for joining components using the clamping system.

Description

The Invention relates to a clamping device for components to be joined together, a tensioner part as such, a preferred use the clamping device and a joining method. The Invention is particularly for the roll-folding of sheet metal structures used, preferably in vehicle construction. A particularly preferred application is mass production of bodies or bodywork parts, in particular attachments, of automobiles.

To the Joining of Components are the components by means of fixtures relative to each other in a joining position curious; excited. Take in the joining position the components relative to each other in each case the position they in the joining compound to be created should take. In the joining process The tensioned components are permanently connected to each other permanently. For the Production of, for example, a vehicle roof which has an opening for a sunroof has, be an outer panel and an inner panel interconnected by Rollfalzen. The outer panel lies in the roll folds in a folding bed, and the inner panel is by means of suitable hold-down in position against the outer panel pressed. The hold-down fixes and tensions the inner panel in this sense relative to the outer panel. In this joining position The sheets are circulated by roll-folds along the roof opening created a solid fold connection of the two sheets. The handling of the components, in the example of the two sheets mentioned, however, is laborious. So For example, the expensive folding bed has to be done in a first step the outer panel then fulfill its actual function in the folding process and finally serves also as a removal device of the created joint assembly. The folding bed is therefore occupied for a comparatively long time. Furthermore, the elaborate is the Positioning of the hold-down.

It It is an object of the invention that clamping of components to be joined to allow in a simpler way preferably the for the clamping of the components and thus for joining total required Reduce time.

A Tensioning device, as the invention relates to it, is multi-part, preferably in two parts, and comprises a first clamping device part with a first component receptacle for a first component and a second clamping device part with a second component receptacle for a with the first component to be joined second component. At least one of the component recordings forms Recording bed for the component assigned to it.

To According to the invention, the first clamping device part comprises a first one Coupling half and the second tensioner part a second coupling half, the with the first coupling half in is a solid clutch engagement or brought into such can be. The first coupling half is with the first component holder firmly connected, and the second coupling half is with the second component receiving firmly connected. In clutch engagement are the component recordings relative to each other in a joining position fixed by being stretched toward each other in a tightening direction are. The coupling halves cooperatively form a clutch engaging in clutch engagement two clamping device parts in a predetermined manner firmly together combines.

In preferred embodiments The clamping force with which the component holders approach each other are tense, generated by the clutch. The coupling halves are in the clutch engagement so braced together so that by this tension the clamping force is generated. Preferably, the coupling halves shaped so that they are engaged by the clutch, more precisely during its manufacture, pull each other. In clutch engagement is in such embodiments the between the component shots transmit effective clamping force. in principle would it be however possible, to generate the clamping force in another way and the clutch only for connecting the tensioner parts for the purpose of uniform Handling to use.

The coupling halves are preferably arranged and shaped so that they each have a Docking side for the other coupling half have, in the clamping direction of the same clamping device part belonging Component recording points. This facilitates the connection of the clamping device parts and especially comes in such embodiments benefit, in which the coupling transmits the clamping force and preferably at all first generated. Although less preferred, those in clutch engagement could facing docking sides of the cooperating coupling halves alternatively in one direction across, i. at right angles or with a slope pointing to the clamping direction.

Due to the design of the clamping device parts with coupling halves, which are complete in the sense that they reach by mere contact in the clutch engagement, which should be blocked to secure and also to facilitate the release of the clutch engagement, the clamping device is ideally suited for use in mass production with short cycle times. For this purpose, the coupling halves are advantageously shaped and arranged on the respective clamping device part such that the coupling engagement can be produced by a simple movement of one clamping device part relative to the other, preferably by means of a short-stroke linear movement. In the preferred embodiments, the manufacture of the clutch engagement alone suffices to tension the component receptacles and thereby the received components relative to one another in the joining position. If, for example, the first component receptacle is fastened to an actuator which is freely movable in space, preferably a robot arm, a first component can be received with the first component receptacle by positioning the first component receptacle relative to the respective first component and positioning the first component receptacle first component is received and held in order to record with the first component receiving the second component receptacle and thus together also the second component, namely simply by producing the clutch engagement. Of particular advantage is further that the second component receiving not only as a shelf for a second component, but in a further function after performing the joining process can also be used as a removal device by the first component recording after joining the first component and thus releasing the joining compound obtained from the components. The shared joint assembly can then be removed from the second component holder. The first component holder is already free again and can record, for example, the next first component.

In a first embodiment the second tensioner part is mobile, so after picking it up together with the first clamping device part, the clamping device forming in space to the joining tool and for connecting the components relative to the joining tool also in the room accordingly the geometry of the compound to be produced is movable. In a second embodiment is the second tensioner part in connecting the components stationary while the joining tool is moved relative to the clamping device in space. In the second embodiment the second clamping device part in the joining station is preferably permanent fixed in place and not only during the joining process.

The Clamping device in preferred embodiments comprises a tensioning structure, which the first component holder and the second component holder clamped and thereby fixed relative to each other in a joining position. The resilience is introduced by means of the clamping structure in the component recordings. Preferably, the first coupling half is on the first structural part and the second coupling half arranged on the second structural part.

Around in the joining position longitudinally stretched components a retreating one Path can connect by means of a path passing through the joining tool can the jig completely within the path, preferably with the outer peripheral edge of the tensioned Components coincide, be arranged so that it does not hinder the circumferential joining tool. However, this requires a common opening for both components. In preferred embodiments Therefore, the tensioning structure is from the inside, i. that of the Path enclosed area, in which the clamping force is introduced into the component recordings, after Outside guided and surrounds the outer peripheral edge the component recordings. In particular, the path may be completely along the outer peripheral edge extend the components. The coupling halves are in such embodiments preferably also outside the outer peripheral edge the component recordings arranged. If the coupling halves in Clutch engagement with respect to the clamping direction is not the same Height like arranged on each other to clamped component recordings, An imaginary parallel projection of the clutch is completely beside lie the component recordings, the projection in the tensioning direction is to be made.

In the joined position of the component receptacles, the components received by the component receptacles also assume relative to one another the joining position, which they occupy in the permanent firmly joined joining compound after the joining process has been carried out. One or both component receptacles can or can grip the respective component, for example with one or more clamping grippers or suction grippers or possibly also a combination of different grippers. Preferably, only one of the component receptacles accesses the relevant component. The other component holder preferably takes its component only loosely by the relevant component only rests on requirements of the component holder, but is not clamped. The component receptacles each have an inner side contacting the component and an outer side facing away from the inner side. The component recordings are preferably areal structures. The respective thickness, which is measured in the direction of a plan view of the respective outer side, is in each case significantly smaller than the length and width measured in the plane of the plan view. The same applies preferably to the components. The component receptacles preferably each have a carrier with one or more arranged on the respective carrier, the recording of the respective component serving functional parts. The functional parts may in particular be the already mentioned grippers or supports or the positioning of the components serving positioning. Advantageously, one of the component receptacles forms a receiving bed, which can absorb the forces required for joining as such. A preferred example is a folding bed, which supports the component edge to be folded. The carrier may be dish-shaped or, in particular, plate-shaped or alternatively, for example also be net-shaped or truss-like and is in the above sense preferably a planar structure.

As already mentioned In preferred embodiments, the clamping structure surrounds the component receptacles, if these relative to each other, the joining position taking. The tensioning structure extends from the outside the first component receiving up to the outside of the second component receiving and thus surrounds the peripheral edge of the two component recordings. The tension structure can be the shape of a temple or at least form a bracket, wherein the bracket or the several stirrups surrounds the peripheral edge of the component recordings or embrace each. In particular, it may take the form of a double hanger, i. one Frame that holds the component receptacles on two sides of the perimeter edge embraces. The or the hanger or the frame is or is preferably at least substantially two-dimensional structures, so that in the case of a multiple bracket, for example of the preferred frame, the plurality of brackets or the frame the component receptacles facing away from each other Surround sides of the peripheral edge. A framework will be in terms of increased mechanical stability given preference compared to a simple bracket. on the other hand makes a simple strap less interference contours.

If the clamping structure the peripheral edge of the component recordings in one Distance surrounds, the peripheral edge is at least generally accessible everywhere. For accessibility can still improve in the joining position relative to each other fixed component recordings and the clamping structure be movable relative to each other, wherein the mobility such is that by the relative movement, the position of at least one the circumferential edge encompassing clamping structure region or preferably the position of the clamping structure as a whole in the longitudinal direction of the peripheral edge changed can be. In this way, in the joining process, a joining tool from a start position in a closed loop around the area the component receptacles are moved, in which the tensioning structure for the initiation the clamping force is supported. The tensioning structure can during the circulation at least a piece run forward or backward in the same direction, so that the joining tool unhindered from the tensioning structure back to the starting position can be. A clamping structure encompassing the peripheral edge is but also advantageous if the path, along the the components are connected to each other, not closed. Even in such cases the relative mobility is advantageous to obstructions of the joining tool to avoid.

For the generation the relative movement between the clamping structure and the component recordings, for example either the tensioning structure or the component formed by the component receptacles Component receiving device in a joining station stationary, i. motionless arranged and the other be movable. Alternatively, you can the relative movement also by a coordinated movement both the clamping structure and the component recordings are generated. In preferred embodiments the component recordings for the implementation of the joining process in the joining station movably arranged. In such embodiments, the in the joining position relatively tensioned components during the joining process in space relative to a joining tool emotional. In the preferred extreme case, the joining tool is in the joining station Fixed, and it will only the jig or it are only the component shots relative to the joining tool moved according to the contour of the peripheral edge. In this sense the invention is directed in particular to a "flying joint". As far as movements of the joining tool, the Component recordings and the clamping structure is not specific regarding the Space are described, these are movements of these components relative to each other, and it remains open which of the components executes an absolute movement or execute.

The Clamping device is preferably in connection with a joining device used, by means of which the components along the common peripheral edge be connected to each other. The joining device is preferably a folding device, particularly preferably a roll folding device, Alternatively, however, for example, a welding device, soldering or adhesive device.

The tensioning device is attached in preferred embodiments to a movable in space actuator. The actuator is preferably freely movable in space in all three degrees of freedom of translation and all three degrees of freedom of rotation. In particular, a robot arm, at the end of which the tensioning device is fastened, form the actuator. In first embodiments, the actuator provides for the relative movement between the clamping structure and the component receptacles located in the joining position. In this case, one of the component holders with one of the axes of movement of the actuator and the clamping structure with one of the axes of movement of the actuator are each immovably connected. When the actuator is as preferred, for example, a robot arm having a plurality of rigid hinge elements and hinges formed therefrom, which are arranged one behind the other from a base of the robot to the end of the robot arm, in such embodiments, the tensioning structure or preferably the construction concerned Partial recording firmly with the last in the kinematic chain, that is to be fixed by the robot base farthest joint element, while the other of the two components can be firmly connected to another, preferably the penultimate joint element of the actuator. The last and penultimate hinge elements together form the hinge of the chain farthest from the robot base. In alternative second embodiments, one of the component receptacles is fixedly connected to one of the axes of movement of the actuator, while the tensioning structure has an additional, own degree of freedom of movement, so to speak as the 7th degree of freedom. In the second embodiment, the tensioning device additionally comprises a separate drive. In reversal of the conditions, the clamping device can be firmly connected to a movement axis of the actuator and the component receiving means of an auxiliary drive to be movable. In the first embodiments, the tensioning structure is, so to speak, tied to the actuator, namely in relation to the degree of freedom of movement of the joint element to which the component receptacles are fastened. Its degree of freedom does not have the tensioning structure. In the second embodiments, the tensioning structure carries along all movements of the component receptacles, but has an additional degree of freedom of movement, and movements within the framework of the additional degree of freedom are superimposed on the actuator movement.

If the position of the peripheral edge of the component recordings embracing Be changed range of the clamping structure relative to the peripheral edge can, is enough it, if not the entire tensioning structure, but only the relevant one Area is movable relative to the peripheral edge. The concerned For example, the area can be attached to a tensioning structure boom protrudes towards the peripheral edge of a central region of the clamping structure, be movably mounted, for example linearly movable or preferably pivotable. More preferable is not only an outer portion of the tension structure movable relative to the component recordings, but the clamping structure all in all. Also for the relative mobility of the tensioning structure as a whole is that a pivoting or rotational mobility is preferred. Alternatively, however, the clamping structure as a whole relative to the Component recordings linearly movable and this example, as a linearly movable Be formed sled. If above of the mobility of the clamping structure or only an outer tensioning structure region there is talk about this because of the relative agility also the case that the clamping structure in the joining process stationary and instead the component recordings for the position change are mobile. This is also a preferred type of relative Mobility of the tensioning structure.

In a preferred embodiment The clamping force in the component receptacles is only ever in one place initiated, preferably over one short column each, i.e. a pedestal. A longitudinal axis the pillar can Advantageously, a rotary or pivot axis of the clamping structure form. For large-area components It may be advantageous if the clamping force in several places is introduced into the component recordings, preferably also each by means of a short column. Also in such versions the tensioning structure can be a coherent structure with one or more several relative to the component recordings movable areas be. Alternatively, several can Clamping structures of the type described above be provided to to clamp the component receptacles relative to one another. If the multiple tension structures as preferably each movable relative to the component recordings are to a tool circulation in spite of their peripheral edge embracing To enable areas can the tension structures or only movable area of the tension structures be equipped with their own drives, or the relative movements are effected by means of a transmission. When using several not uniformly movable clamping structures or clamping structure areas also come several joining tools to use and lead only one partial revolution each.

The Clamping structure is in several preferred embodiments with a first structural part and at least one further, second structural part. The first structural part and the second structural part can be permanent, be relatively movably connected to each other. In such versions be taken in an extended state, the components and the structural parts with the component receptacles and the recorded Components in the joining position moved towards each other and fixed together with the coupling. preferred are the first structural part and the second structural part by means of Clutch for Although the clamping of the components firmly connected to each other, the structural parts However, they are separable from each other, so that the first structural part with the associated first component receptacle and the second structural part with the associated second component receiving each separately and independently can be handled, especially for picking up the components. The tensioning structure can be one or more Other structural parts include, the or with one of the two said structural parts permanently movable and fixable or over each again a coupling of the type mentioned is connected or are. Prefers However, the tensioning structure consists only of the first and the second Structural part, i. it is preferably in two parts.

The coupling halves are advantageously already designed, as already mentioned, that they pass through a linear movement can be brought into a clutch engagement. The direction of the linear movement preferably coincides with the direction of the clamping force, with which the components in the joining position by means of the clamping structure toward each other, preferably directly against each other, are pressed. The coupling halves are preferably shaped so that they tighten in the preparation of the clutch engagement, so to speak firmly claw, and thereby generate the clamping force. Of the coupling halves, preferably one forms a coupling finger and the other a coupling receptacle, which enter into the coupling engagement with each other. Thus, the coupling may preferably form a plug / socket connection in the connected state of the coupling halves. Preferably, the coupling half has at least one engagement element with the coupling receptacle and supports this engagement element transversely to the direction in which the coupling halves are moved into the coupling engagement, ie transversely to the clamping direction, preferably perpendicular to the clamping direction or with an inclination. The at least one engagement element is advantageously blockable in the clutch engagement. The respective coupling half has, in such embodiments, at least one blocking element and supports this blocking element between a blocking position and a release position movable back and forth. In the blocking position, the blocking element prevents the at least one engagement element from moving out of the clutch engagement. The clutch engagement is possible only in the release position of the blocking element. The blocking and the release are advantageously effected by a controller, expediently an actuator control, for example purely mechanically or preferably electrically or pneumatically.

The The invention also relates to a clamping device of a single the tensioner parts as such. The tensioner part includes either the first component receptacle with the first coupling half or the second component holder with the second coupling half. The above to embodiments of the clamping device as a whole also apply in With respect to the tensioner part. The tensioner part as such preferably also comprises the structural part of the tensioning structure, which is connected to the relevant component receptacle.

advantageous Features are also set out in the subclaims and their combinations described. The features of the claims and those described above Complement features each other mutually.

Based the tensioning device with at least two, preferably exactly two Component seats disclosed features be realized with advantage also in a clamping device, the only one of the component recordings includes, for example, a clamping device only for beading a peripheral edge of a component. Beading can be a roll-folding process, i.e. but may include connecting to another component also be used only for forming alone. In such applications is the further component receiving preferably by a hold-down replacing the component to be machined in the flanging bed the component recording presses.

following Be exemplary embodiments of Invention explained with reference to figures. On the embodiments Obviously emerging features form each individually and in each combination of features the objects the claims and also the embodiments described above advantageous further. Show it:

1 a tensioning device of a first embodiment in a perspective view,

2 the tensioning device in another perspective view,

3 a folding process,

4 a first half of the tensioning device,

5 a second half of the tensioning device,

6 Coupling halves of the tensioning device,

7 the second half of the clamping device with a recorded component,

8th a joining station for a first joining method,

9 a tensioning device of a second embodiment in a perspective view,

10 the tensioning device of the second embodiment in a further view and

11 a joining station for a second joining process.

1 shows a clamping device, as it can preferably be used for a flying joining, in particular roll hemming, in a first embodiment. The clamping device is used for clamping two components B1 and B2, which along its outer peripheral edge circumferentially in a Joined joining process firmly together to form a joint after joining. The clamping device clamps the components B1 and B2 relative to one another in a joining position, which they also occupy in the joint assembly after joining. The components B1 and B2 are circumferentially joined in the tensioned state along its outer peripheral edge, preferably by roll hemming. For the preparation of the compound, a single joining tool can perform a complete circulation. Alternatively, distributed over the outer peripheral edge and several tools may be provided and accordingly add only a portion of the peripheral edge. In the preferred joining process of roll creasing several tool heads can be used with the inclination for differently employed folding rollers or a single tool head with simultaneously working, differently employed folding rollers. A preferred example of such a folding head is in the European patent application EP 06 001 600 described. As already mentioned in general for joining tools, several such Rollfalzköpfe distributed over the peripheral edge of the components B1 and B2 at the same time perform only a partial revolution. In the case of flying joining, the joining tool or the plurality of joining tools is arranged stationarily in a joining station, and the circulation is brought about by a corresponding movement of the components B1 and B2 located in the joining position relative to one another. A Rollfalzprozess as a preferred example of such a joining process is the subject of DE 103 38 170 B4 , which is referred to in this regard.

The tensioning device comprises a first component receptacle 1 for the component B1 and a second component holder 5 for the component B2. The components B1 and B2 are sheet metal structures. The component B1 is an outer panel and the component B2 is an inner panel for a motor vehicle attachment, such as a door. Corresponding are also the component recordings 1 and 5 planar structures with a length and a width, which are each several times larger than the thickness of the structure in question. The component holder 1 comprises a support which in the exemplary embodiment is shaped as a support plate and in the figures directly with the reference symbol " 1 "is provided, and a fixed bed connected to the carrier 4 which in the preferred case of roll creasing is a folding bed. The recording bed 4 forms an inside of the component holder 1 in which the component B1 abuts at least in an edge strip which forms the peripheral edge. The component holder 1 also includes several grippers 2 , by means of which the component B1 can be suspended hanging. The grippers 2 protrude from an outside of the component receptacle 1 through openings of the carrier and the receiving bed 4 and are arranged so that they the component B1 on the receiving bed 4 can wear hanging down. The grippers 2 are suction pads, in the embodiment pneumatic suction pads, which can be acted upon either with negative pressure or pressure. Furthermore, the component holder includes 1 a positioning element 3 , which is formed in the embodiment as a centering pin. The positioning element 3 protrudes from the outside of the component holder 1 through a section of the recording bed 4 and protrudes over the inside of the component holder 1 towards the second component holder 5 in front.

2 shows the clamping device in a view of the second component receiving 5 , The component holder 5 also has a support, which is exemplified as a support plate and in the figures directly with the reference numeral " 5 On the carrier are several editions 6 and positioning elements 7a . 7b and 8th arranged. The recorded component B2 lies on the supports 6 , The terms 6 form a recording bed 6 for the component B2. The terms 6 can in secondary function and the positioning of the component B2 relative to the component recording 5 serve. The positioning elements 7a serve as an instructor when placing the component B2, and the pin-shaped further positioning 7b serve the more accurate positioning of the component B2 relative to the component receiving 5 , The positioning element 8th serves in cooperation with the positioning element 3 the first component recording 1 the positioning of the component recordings 1 and 5 relative to each other and is therefore formed in the embodiment, therefore, as a pin holder into which the positioning element 3 retracts when the component shots 1 and 5 moved toward each other in the illustrated joining position and that of the component shots 1 and 5 formed component receiving device 1 . 5 is closed.

The tensioning device further comprises a tensioning structure 10 with a first structural part 11 that with the component recording 1 permanently connected, and a second structural part 11 . 12 that with the component recording 2 permanently connected. The structural parts 11 and 12 . 13 are firmly connected to each other by means of a detachable connection. In the illustrated, connected state, the tensioning structure decreases 11 the clamping force with which the components B1 and B2 are pressed against one another in a clamping direction X and thus clamped in the joining position. The tension structure 10 as a whole has the form of a frame or double hanger, the component recordings 1 and 2 and the components B1 and B2 received therein at a distance surrounds on two opposite sides of the peripheral edge.

The tension structure 10 includes a central hinge element 14 from which two beam-shaped, straight cantilevers that together form the structural part 11 form, protrude outwards. The structural part 11 and the joint element 14 form a single rigid part. The joint element 14 forms with a joint element 24 a hinge with a pointing in the clamping direction X hinge axis X. The hinge element 24 protrudes centrally in the X direction from the outside of the component receptacle 1 off and is connected to this stiff. The component holder 1 is about the joint element 24 and a docking member 20 with a movable in space actuator, preferably the end of a robot arm connected. The joint element 24 forms with the docking member 20 a connecting joint 20 . 24 as another hinge with also the X-axis as joint axis. The joint element 24 is thus about the X-axis both relative to the clamping structure 10 as well as the docking member 20 rotatably. The docking member 20 has a connection 21 in the form of a connecting flange. The connection 21 serves for attachment to the actuator. The connection end of the actuator to which the docking member 20 is rotatable about a perpendicular to the X-axis Y-axis. The two axes X and Y are the two outermost axes of movement of the actuator and determine two degrees of freedom of rotation. From a central area of the docking member 20 protrudes in the direction of the X-axis on each side rigidly from a leg to a joint element 22 for the articulated connection with the joint element 24 to build. As a result, the fixture as a whole is pivotable about the Y-axis, and the component fixtures 1 and 5 are rotatable about the X-axis.

The structural part 11 is about a connection 23 stiff, ie immovable, with the docking member 20 connected. When the component shots 1 and 2 by means of a drive of the actuator relative to the docking member 20 to be rotated about the X-axis, the tensioning device follows 10 This rotational movement therefore not, but moves in opposite directions relative to the component recordings 1 and 2 , The connection 23 comprises two angle elements, each torsionally rigid via a connecting ring with the joint element 22 and thus torsionally rigid with the docking member 20 and at the opposite end respectively to the structural part 11 are connected. The connection with the structural part 11 may be a solid, permanent connection, for example a screw or cohesive connection, or more preferably a pure press connection.

The second structural part 12 . 13 the tensioning structure 10 is rotatable in a rotary joint with the carrier of the component holder 5 connected. The swivel joint is in particular in 2 to recognize. The carrier of the component holder 5 forms one of the hinge elements of this rotary joint. The other joint element is with 15 and is central and stiff on the boom 12 arranged. The X-axis is also the hinge axis of this joint 5 . 15 , The second structural part 12 . 13 is U-shaped with a continuous crossbar, the one to the structural part 11 parallel boom 12 forms and extends beyond the two furthest apart points of the peripheral edge of the component receptacles 1 and 5 and components B1 and B2 extends. From the two outer ends of the boom 12 protrudes ever a connection bar 13 perpendicular from and onto the structural part 11 to. The structural part 12 . 13 thus has the shape of one to the structural part 11 open "U" on. In the connected state, the structural part closes 11 the open side of the U-shaped structural part 12 . 13 ,

The structural parts 11 and 12 . 13 are rigidly connected to each other by means of an automatically closable and automatically releasable coupling so that they can absorb the required for the clamping of the components B1 and B2 clamping force. More specifically, the clamping force by means of the clamping structure 10 generated and over the joints 5 . 15 and 14 . 24 in the component shots 1 and 5 directed. The component shots 1 and 5 be stretched toward one another in the clamping direction X with the clamping force thus generated and with their inner sides facing each other, so that the components B1 and B2 are pressed over their peripheral edge everywhere sufficiently strong against each other.

The coupling consists of two first coupling halves 16 of which one each at one of the two outer ends of the structural part 11 is arranged, and two second coupling halves 17 of which one each at the two in the released state free ends of the structural part 12 . 13 is arranged. The clamping force is due to the clutch engagement of the first two coupling halves 16 and the respectively associated second coupling half 17 generated. The structural part 11 is due to the interaction of the coupling halves 16 and 17 in the clamping direction X against the structural part 12 . 13 pressed. The structural part 11 becomes a yoke The tension structure 10 creates two closed power circuits, located in the central area in the junctions of the tensioning structure 10 and the component intake 1 and 5 ie in the joints 14 and 15 from there via a socket in each of the component recordings 1 and 5 be introduced and distributed and also separated the two brackets of the tensioning structure 10 ie one each of the pairs of coupling halves 16 and 17 pull through.

3 shows the geometry of the peripheral edge of the components B1 and B2 in a cross section. The component B1 has circumferentially an angled in the direction of the component B2 flange, which is folded over during folding completely up against a sheet edge of the component B2 and so a solid rabbet joint is generated. The flange of the component B1 is successively folded in several folding steps, for example two or three folding steps. The initial geometry is shown in solid line, an intermediate step and the state after complete handling are indicated by dashed lines. Folding rollers required for two-stage folding 30a and 30b are also outlined in dashed lines.

The tension structure 10 is as already mentioned in two parts, and the two parts, namely the structural part 11 with the joint element 14 on the one hand and the structural part 12 . 13 with the joint element 15 On the other hand, are detachably connected to each other via a coupling. This results in two detachable and in the detached state separately manageable clamping device parts, namely a first clamping device part with the component holder 1 and a second tensioner part with the component receptacle 5 and the respectively assigned part of the tensioning structure 10 , The two clamping device parts are detachable from each other via the same coupling and can be handled separately in the released state.

4 shows the first tensioner part in a perspective view of the inside of the receiving bed 4 , The component B1 is indicated in dashed line, but shown transparent. To recognize the are the recording bed 4 powerful gripper 2 passing over the inside of the recording bed 4 are arranged distributed. Furthermore, the positioning element can be seen 3 which the recording bed 4 protrudes and beyond the inside beyond in the clamping direction X of the component recording 1 projects. 4 also shows the second coupling halves open towards the clamping direction X. 16 , The coupling halves 16 each have a docking side 16a on, which is turned in the clamping direction X. The coupling halves 16 have at their docking side 16a depending on a plate-like, extending transversely to the clamping direction X docking surface for each assigned to the coupling halves 17 on.

5 shows the second tensioner part separately in a perspective view of the inside of the component receptacle 5 , Distributed over the carrier are several of the requirements 6 arranged on which the second component B2 can be placed. The carrier forms with the pads 6 thus a recording bed 6 for the second component B2. The positioning element 8th is for the interaction with the positioning element formed as a centering pin 3 formed as a pen holder. The serving as a guide positioning 7 protrude in the clamping direction X of the component holder 5 as far as the carrier 5 before that, when the component B2 is placed with its positioning contours, it comes into contact with a guide before the component B2 rests on the supports 6 rests. The component holder 5 has additional positioning elements 9 on, the positioning of the component holder 5 serve in a tray of a joining station. The positioning elements 9 are exemplified as holes in the carrier. In the filing of the joining station corresponding positioning counter-elements are arranged in the exemplary embodiment towering positioning pins, which in the positioning of the component receiving 5 Retract into the holes in the tray. The second fixture part is deposited in the tray of the joining station with its underside on a base in a predetermined position, so that it rests on the base and in five degrees of freedom of movement by means of the structural part 12 . 13 is fixed. The definition of the sixth degree of freedom, in the embodiment of the rotational mobility of the component recording 5 relative to the structural part 12 . 13 , is due to the interaction of said positioning elements 9 and Positioniergegenelemente causes. Instead of the positioning elements 9 and to provide the positioning counter-elements through holes and pins, also the outer edge of the carrier of the component holder 5 be used as a positioning element of the second clamping device part; in the tray a corresponding stop for the carrier would be provided. 5 further shows the two second coupling halves 17 with a view of their docking side 17a , The two coupling halves 17 show at their docking sites 17a one docking area each for the assigned coupling half 16 on. The docking surfaces of the coupling halves 17 are also plate-like and extend transversely to the clamping direction X.

6 shows a first coupling half 16 and a second coupling half 17 detached from the tensioning structure 10 compared side by side. The two cooperating other coupling halves 16 and 17 correspond to the in 6 shown. The coupling half 17 has a pin or bolt-shaped coupling finger 19 on, on the docking side 17a in the clamping direction X protrudes from the docking surface. The clutch finger 17 is centrally located with respect to the docking area. He has in a central area circumferentially thickening 19a on. The thickening 19a forms for the first coupling half 16 a tangible advantage. The coupling half 16 has a coupler pocket 18 for the clutch finger 19 on. The coupler holder 18 is according to the shape of the clutch finger 19 cylindrical and on the docking side 16a open, leaving the clutch finger 19 from the component holder 5 seen in the clamping direction X in the coupling receptacle 18 can retract to make the clutch engagement and thereby firmly connect the two clamping device parts together. The coupler holder 18 is with respect to the docking surface of the coupling half 17 also centrally located. The coupling half 16 Also comprises a plurality of engagement elements, such as balls, pins or bolts, which are guided transversely to the clamping direction X, preferably at right angles to the clamping direction X, movable. In the coupler pocket 18 lateral holes are visible. Through each of the holes protrudes in the Kupp lunging engagement each one of the engagement elements in the cavity of the coupling receptacle 18 in radially in front. The engagement elements engage behind the clutch from the thickening 19a formed projection and hold the clutch finger 19 so in the coupler pocket 18 , The thickening 19a widens in the clamping direction X of the second component recording 5 radially on, either simply conical or preferably trumpet-shaped progressively, so that the coupling finger 19 through the engaging engagement elements of the coupling half 16 in clamping direction X of the component holder 5 in the coupler pocket 18 is drawn in and the two clamping device parts, in particular the two component shots 1 and 5 , are stretched towards each other in their respective clamping direction X. The docking pages 16a and 17a the coupling halves 16 and 17 are further formed so that the docking surfaces are pressed against each other by the clutch engagement. In this way, by means of the clutch engagement a defined clamping force in the component recordings 1 and 5 initiated. The distances between the engagement elements and the docking surface of the coupling halves 16 and the projection 19a and the docking surface of the coupling half 17 are chosen accordingly.

The engagement elements of the coupling half 16 are blocked or locked in the clutch engagement. The two coupling halves 16 have for this purpose depending on a blocking element for the engagement elements. Optionally, a plurality of blocking elements per coupling half 16 be provided. The blocking element is in the relevant coupling half 16 For example, in the clamping direction X axially reciprocally received and acted upon at both ends with a pneumatic force. By selectively loading one of the two sides, the blocking element is selectively moved to a blocking position or a release position. The blocking element forms a two-sided acted upon piston. In the blocking position, it locks the engagement elements of the relevant coupling half 16 in the clutch engagement and in the release position, there are the engagement elements free, so that the clutch engagement can be solved. The coupling halves 16 be about the structural part 11 supplied with the required compressed air. The blocking element may for example be conically shaped in the clamping direction X and lie in the blocking position with its thicker region in the axial overlap to the engagement elements, while it is brought in the release position with its thinner portion to the axial height of the engagement elements and the engagement elements therefore to release the clutch engagement can yield radially outward. The blocking can also be effected electrically instead of pneumatically. The compressed air supply is omitted in such versions; instead, it is per coupling half 16 an electric drive for actuating the blocking elements is provided and is controlled by corresponding actuating signals, preferably by an actuator control.

7 shows again the second clamping device part, but with applied component B2. The second tensioner part is as in 7 shown stored in the filing of the joining station and can be recorded with the already recorded component B2 of the first fixture part. The second tensioner part is in the tray by means of the boom 12 and the positioning elements 9 stored in a defined position, so that the actuator with the first clamping device part, the stored second clamping device part programmatically approach and record. In the last phase of the start-up, the actuator moves the first clamping device part in its clamping direction X, so that the coupling fingers 19 the two coupling halves 17 in the clutch receptacles 18 retract and the engagement elements of the first coupling halves 16 be underrun. The coupling engagement thus produced is achieved by actuation of the blocking elements of the coupling halves 16 blocked, so that the firm connection of the clamping device parts is made.

The second clamping device part is used in the joining station not only the depositing the components B2 and thus the loading of the joining station, but is in Another function as a removal device for the created joining compound used.

8th shows by way of example a joining station in a schematic representation for the implementation of a first joining method. In the joining station, a robot is arranged, which is a stationary base rotatable about a vertical axis 27 and one from the base 27 protruding robotic arm 28 comprising a chain of rigid hinge elements and the hinge elements forming pairwise connecting joints extending from the base 27 up to a last of the hinge elements at the end of the robot arm 28 extends. At the robot arm forming the actuator 28 is the first tensioner part by means of the docking member 20 attached ( 1 and 2 ), so that the joint element 24 the last joint element of the robot arm 28 is. To the robot base 27 four substations F1 to F4 are distributed, which the robot approaches one after the other in one turn. In the first substation F1 a plurality of first components B1 are arranged one above the other. The robot picks up the uppermost component B1 with the first clamping device part by positioning the first clamping device part relative to the component B1 and after positioning the grippers 2 activated, so that the component B1 sucking on the receiving bed 4 is held.

In the next step, the robot continues to turn to the second substation F2. The second substation F2 is the shelf for the second fixture part. The second tensioner part has already received a component B2. The relevant component B2 was previously either by machine or by hand on the recording bed 6 the second component receiving 5 stored. The robot docks the first tensioner part to the second tensioner part, namely the first two coupling halves 16 at the two second coupling halves 17 , and blocks the two blocking elements of the coupling halves 16 so that the solid clutch engagement is established. The two components B1 and B2 are now stretched in the joining position relative to each other.

The robot moves the clamping device with the components B1 and B2 in the joining position to the third substation F3, the actual joining station. In station F3 is a joining tool 30 , preferably a Rollfalzwerkzeug, stationarily arranged. The robot positions the clamping device so that the joining tool 30 attaches at a certain point of the joint connection to be created. After this starting position is reached in the station F3, the robot moves the clamping device in a predetermined manner so that the peripheral edge in a closed circuit so to speak through the joining tool 30 is pulled. This movement of the tensioning device and corresponding to the tensioned components B1 and B2 comprises, in particular, a rotational movement of the tensioning device about the X-axis (FIG. 1 and 2 ). Preferably, it consists of such a rotational movement. Because the component shots 1 and 5 stiff, in particular torsionally rigid with the X-axis of the last joint element 24 of the robot arm 28 and the tensioning structure 10 rigidly connected to the immediately upstream Y-axis and tied to the Y-axis in this sense, rotate the component recordings 1 and 5 relative to the tensioning structure 10 around the X-axis. The joining tool 30 Therefore, in a closed circuit along the peripheral edge of the components B1 and B2 relative to the components B1 and B2 unhindered by the clamping structure 10 move. In the selected embodiment with the frame-like clamping structure 10 is the joining tool 30 during the joining process always at a location between the two connecting bars 13 and the coupling halves 16 and 17 , These outer areas of the tensioning structure 10 run the joining tool 30 before or after, from the point of view of component recordings 1 and 5 out of view. To speed up the joining process, for example, two tools can be used in station F3 30 each be arranged stationarily and act on opposite sides of the peripheral edge.

After creating the joint, the robot moves the jig into the last, fourth substation F4. The tensioning device is positioned and deposited on the underside of the second tensioner part in station F4. After settling the robot releases the clutch 16 . 17 and lifts the first jig part up from the stepped second jig part. While the robot is executing the described duty cycle again, the joining compound B1 and B2 formed from the components B1 and B2 is taken out of the second fixture part. The second clamping device part is now available again for receiving a new second component B2. If the cycle times in the individual stations F1 to F4 allow it, the same second clamping device part for the next following cycle is again positioned in the second station F2. If the cycle times of the individual stations do not permit this, the station has another second clamping device part in order to use the two clamping device parts alternately.

The 9 and 10 show a tensioning device in a modified second embodiment. The component shots 1 and 5 correspond to those of the first embodiment. In the following, only the differences from the first exemplary embodiment will be described, while, incidentally, reference may be made to the first exemplary embodiment. Accordingly, the same reference numerals are used for functionally identical components as in the first embodiment.

The tension structure 10 just forms a simple bracket, which is the peripheral edge of the component holders 1 and 5 as each half of the double hanger of the first embodiment embraces. The tension structure 10 corresponds with respect to the mechanics and geometry of each of the two halves of the double bow of the first embodiment. This is especially true for the only in the second embodiment, a total of two coupling halves 16 and 17 ,

The tensioning device of the second embodiment comprises its own drive 26 to the relative movement between the tensioning structure 10 and the tense component shots 1 and 5 to effect. The drive 10 is a pneumatic linear actuator consisting of a cylinder and a piston with piston rod. The cylinder is at the component holder 1 attached, and the piston rod is opposite to the tensioning structure 10 , In the embodiment of the structural part 11 attached. The attachment is fixed in each case, but rotatably designed so that the drive 26 the swivel movements of the tensioning structure that can be generated by it 10 can compensate. In contrast to the first embodiment, the relative movement is not by a drive of the actuator, but through its own drive 26 causes the tensioning device. The tensioning device can thus via the joint element 24 Stiff with the component holder 1 is connected to be attached to the actuator. The joint 14 . 24 exists however still. In the joint 14 . 24 are the component recordings 1 . 5 on the one hand and the tensioning structure 10 on the other hand movable relative to each other, rotatable in the embodiment. The pneumatic drive 26 can be replaced by an electric drive.

In perspective views of 9 and 10 is one of the two extreme positions shown, which the tensioning structure 10 relative to the component shots 1 and 5 can take. There is also a roller hemming tool 30 indicated, more precisely, a cooperating pair of Fertigfalzrollen is shown, of which the lower roller forms the seaming roller and when turning the flange on the flange ( 3 ) rolls while the upper roller, the counter roller, on a track of the recording bed 4 rolls. Instead of such a pair of rollers, only the rolling on the flange of the component B1 folding roller can be provided; however, the robot would then have to absorb the force required for folding. In the preferred embodiments of Rollfalzwerkzeugen these therefore also include a counter-roll for the respective folding roller. The recording bed 4 is for the counter roller on its outer side, facing away from the peripheral edge of the component B1 opposite formed with a peripheral edge of the component B1 following career for the counter-roller.

The Clamping device of the second embodiment may be of the described differences except in the same way as the clamping device of the first embodiment and in a joining process as used by way of example.

11 shows by way of example a joining station in a schematic representation for the implementation of a second joining method. The joining station comprises only two substations F1 and F2. In the substation F1 components B1 are stored. The stations F1 of the two embodiments are the same. The second component shot 5 is, however, stationary immovably in the substation F2. From the stationary arrangement of the component holder 5 Apart from that, the component holder can 5 and the structural part 12 . 13 form the described second clamping device part.

The robot 27 . 28 corresponds up to and including its penultimate hinge element 20-22 the robot of the joining station of 8th , However, it forms a joint element 25 , opposite to the hinge element 24 that's modified from the base 27 seen from last joint element of the robot arm 28 , The joint element 25 is forked. At a fork end is the component holder 1 attached. In that regard, the arrangement corresponds to the joint element 25 and component recording 1 the described combination of hinge element 24 and component recording 1 , At the other end of the fork is a joining tool 31 arranged. The joining tool 31 as such, the joining tool can 30 correspond. It comprises at least one folding roller and preferably also a counter roller for the folding roller, as shown in FIG 11 is indicated. Preferably, the joining tool comprises at least one further folding roller. The at least two folding rollers in such a development are arranged inclined to each other at the fork end and can be selectively brought into working position. In the EP 1 420 908 A1 a Rollfalzkopf is described, as in particular at the fork end of the joint element 25 can be arranged. The relevant fork end can also be formed again as a joint to bring several folding rollers either in the working position can. As an alternative to a Rollfalzkopf or fork end with optionally be brought into the working position folding rollers can also be used in the EP 06 001 600 described joining tool are used at the fork end; this joining tool requires no additional joint at the fork end, since it comprises a plurality of folding rollers, which are arranged in the same work before each other and trailing.

The first clamping device part can in particular either the first clamping device part of 1 to 7 or the first tensioner part of 9 and 10 be the only difference is that a connection 23 the first structural part 11 stiff with the hinge element 25 connects and not with the joint element 20 - 22 , The connection 23 is a detachable connection and designed so that the robot 27 . 28 can solve them automatically.

The joining cycle starts again in the Substation F1 by the robot 27 . 28 with the component holder 1 there picks up the next component B1. After recording, the robot moves 27 . 28 the component holder 1 with the recorded component B1 in the substation F2 and docks the first clamping device part by means of the coupling halves 16 and 17 on the second clamping device part. After making and blocking the clutch engagement, the connection between the joint element becomes 25 and the component intake 1 solved. The connection 23 is also solved. The taut component images 1 and 5 are now stationary in the substation F2 and absolutely immovable.

After the robotic arm 28 from component recordings 1 and 5 and the structural part 11 ge was released, the robot moves 27 . 28 the joining tool 31 in the starting position for the joining process and moves the joining tool 31 then along the peripheral edge to make the seaming connection. The by the clutch engagement of the coupling halves 16 and 17 produced clamping structure is in coordination with the movement of the joining tool 31 also moves, as already described with reference to the other embodiments, so that the joining tool 31 in a closed circuit the peripheral edge of the components B1 and B2 can depart. The movement of the tensioning structure can be effected by means of a drive arranged at the second tensioning device part. The drive can, for example, directly on the joint element of the component recording 5 which affects the joint 5 . 15 forms. In such an embodiment, the rotor of a rotary motor, preferably electric rotary motor, torsionally rigid with the hinge element of the component receptacle 5 be connected.

After joining, the joining tool 31 moved from the working position and the hinge element 25 again with the component holder 1 connected. The coupling engagement of the coupling halves 16 and 17 is solved, and the component recording 1 from the component holder 5 lifted. The joining composite formed from the components B1 and B2 is now free on the component holder 5 and gets out of the component intake 5 taken while the robot 27 . 28 the first fixture part already moved again to the substation F1 for the next cycle.

1

Bauteil-Aufnahme

2

Greifer

3

Positionierelement, Zentrierstift

4

Aufnahmebett, Falzbett

5

Bauteil-Aufnahme

6

Aufnahmebett, Auflagen

7a

Positionierelement, Einweiser

7b

Positionierelement, Stift

8

Positionierelement, Stiftaufnahme

9

Positionierelement

10

Spannstruktur

11

Strukturteil, Ausleger

12

Strukturteil, Ausleger

13

Strukturteil

14

Gelenkelement

15

Gelenkelement

16

Kupplungshälfte

16a

Andockseite

17

Kupplungshälfte

17a

Andockseite

18

Kupplungsglied, Kupplungsaufnahme

19

Kupplungsglied, Kupplungsfinger

19a

Verdickung

20

Andockglied

21

Anschluss

22

Gelenkelement

23

Verbindung

24

Gelenkelement

25

Gelenkelement

26

Antrieb

27

Roboterbasis

28

Roboterarm

29

30

Fügewerkzeug

30a

Falzrolle

30b

Gegenrolle

31

Fügewerkzeug

B1

Bauteil

B2

Bauteil

X

Spannachse, Drehachse

Y

Drehachse

F1-F4

Substationen

Reference numerals:

1

Component pickup

2

grab

3

Positioning element, centering pin

4

Recording bed, folding bed

5

Component pickup

6

Recording bed, pads

7a

Positioning element, referrer

7b

Positioning element, pin

8th

Positioning element, pin holder

9

positioning

10

span structure

11

Structural part, outrigger

12

Structural part, outrigger

13

structure part

14

joint element

15

joint element

16

coupling half

16a

docking side

17

coupling half

17a

docking side

18

Coupling member, coupling receptacle

19

Coupling member, coupling finger

19a

thickening

20

docking member

21

connection

22

joint element

23

connection

24

joint element

25

joint element

26

drive

27

robot base

28

robot arm

29

30

joining tool

30a

seaming roll

30b

counter-roller

31

joining tool

B1

component

B2

component

X

Clamping axis, rotation axis

Y

axis of rotation

F1-F4

substations

Claims (36)

Clamping device for joining components (B1, B2), comprising: a) a first clamping device part with a first component receptacle ( 1 ) for a first component (B1) and a first coupling half ( 16 ) with the first component holder ( 1 ), b) a second clamping device part with a second component receptacle ( 5 ) for a second component (B2) and a second coupling half ( 17 ) connected to the second component receptacle ( 5 ), at least one of the component receptacles ( 1 . 5 ) a recording bed ( 4 . 6 ) for the component (B1, B2) assigned to it, d) and wherein the component recordings ( 1 . 5 ) in a clutch engagement of the coupling halves ( 16 . 17 ) are stretched toward one another in a joining position in a clamping direction (X) relative to each other and at least one of the component receptacles ( 1 . 5 ) with her recording bed ( 4 . 6 ) of the other of the component recordings ( 1 . 5 ) is facing. Clamping device according to the preceding claim, characterized in that the at least one of the component receptacles ( 1 . 5 ) a carrier and a plurality of spaced, projecting from the carrier pads ( 6 ), which together the recording bed ( 6 ) form. Clamping device according to claim 1, characterized in that the receiving bed ( 4 ) is a folding bed. Clamping device according to one of the preceding claims, characterized in that at least one of the component receptacles ( 1 . 5 ) at least one gripper ( 2 ), preferably suction gripper, for a suspended support of the associated component (B1), Clamping device according to one of the preceding claims, characterized in that the at least one of the component receptacles ( 1 . 5 ) Positioning elements ( 7 ) for positioning the associated component (B2) relative to the receiving bed ( 6 ) having. Clamping device according to one of the preceding claims, characterized in that the component receptacles ( 1 . 5 ) at least one positioning element ( 3 . 8th ) for positioning the component recordings ( 1 . 5 ) relative to each other, these positioning elements ( 3 . 8th ) preferably a centering pin ( 3 ) and a pen recording ( 8th ). Clamping device according to one of the preceding claims, characterized in that the coupling halves ( 16 . 17 ) can be locked automatically in the clutch engagement and the lock is automatically releasable, preferably by means of an electrically or with a fluid pressure acted upon blocking element. Clamping device according to the preceding claim, characterized in that a ( 18 ) of the coupling halves ( 16 . 17 ) has at least one engagement element movable into and out of the clutch engagement and a blocking element that is reciprocable between a blocking position in which it blocks the engagement element in the clutch engagement and a release position, and that the blocking element is automatically actuated, preferably electrically or fluidically is operable. Clamping device according to one of the preceding claims, characterized in that the coupling halves ( 16 . 17 ) at least one coupling member ( 18 . 19 ) and the coupling members ( 18 . 19 ) are clamped together in the clutch engagement. Clamping device according to the preceding claim, characterized in that a ( 17 ) of the coupling halves as a coupling member ( 19 ) a coupling finger and the other coupling half ( 16 ) as a coupling member ( 18 ) a coupling receptacle ( 18 ) has for the clutch finger. Clamping device according to one of the two preceding claims, characterized in that the coupling halves ( 16 . 17 ) one docking side each ( 16a . 17a ) and the docking pages ( 16a . 17a ) facing each other in the clutch engagement and that one of the coupling members ( 19 ) on one of the docking sites ( 16a . 17a ) protrudes in the clamping direction (X). Clamping device according to one of the three preceding claims, characterized in that a ( 17 ) of the coupling halves in the clamping direction (X) extending coupling member ( 19 ) with a lead ( 19a ) has an engagement element of the other coupling half ( 16 ) engages behind in the clutch engagement. Clamping device according to the preceding claim, characterized in that the projection ( 19a ) having a coupling member ( 19 ) from the other coupling half ( 16 ) seen from behind the projection ( 19a ) tapers, preferably continuously. Clamping device according to one of the preceding claims, characterized in that the coupling halves ( 16 . 17 ) one docking side each ( 16a . 17a ) and the docking pages ( 16a . 17a ) are stretched towards each other in the clutch engagement, preferably pressed against each other. Clamping device according to one of the preceding claims, characterized in that the coupling half ( 16 . 17 ) the at least one of the component recordings ( 1 . 5 ) a docking side ( 16a . 17a ) for the other coupling half ( 17 . 16 ) and the docking side ( 16a . 17a ) in the same direction as the recording bed ( 4 . 6 ) the at least one of the component recordings ( 1 . 5 ). Clamping device according to one of the preceding claims, comprising a tensioning structure ( 10 ), which the component images ( 1 . 5 ) in the joining position in the clamping direction (X) and a peripheral edge of the component receptacles ( 1 . 5 ) surrounds, preferably surrounds at a distance. Clamping device according to the preceding claim, characterized in that the tensioning structure ( 10 ) with the first component receptacle ( 1 ) connected first structural part ( 11 ) and one with the second component receptacle ( 5 ) connected second structural part ( 12 . 13 ) and that the first structural part ( 11 ) the first coupling half ( 16 ) and the second structural part ( 12 . 13 ) the second coupling half ( 17 ) wearing. Clamping device according to the preceding claim, characterized in that the structural parts ( 11 . 12 . 13 ) form at least one divisible by releasing the clutch engagement bracket. Clamping device according to one of the three preceding claims, characterized in that at least one region of the clamping structure encompassing the peripheral edge (FIG. 10 ) is movable relative to the peripheral edge, so that the position of an outer end of the clamping structure ( 11 ; 12 . 13 ) are changed in the longitudinal direction of the peripheral edge can. Clamping device according to one of the preceding claims, characterized characterized in that it is used for roll-folding. Clamping device part for receiving a component to be joined (B1, B2), comprising: a) a component holder ( 1 ; 5 ) with a recording bed ( 4 ; 6 ) for the component (B1; B2) b) and a coupling half ( 16 ; 17 ) with a coupling member ( 18 ; 19 ) for a clutch engagement with a coupling member ( 19 ; 18 ) of another coupling half ( 5 ; 1 ) another component recording ( 5 ; 1 ). Clamping device part according to the preceding claim, characterized in that - the receiving bed ( 4 ; 6 ) a the male component (B1; B2) facing inside and the component receptacle ( 1 ; 5 ) facing away from the inside opposite the outside and a receiving bed ( 4 ; 6 ) has peripheral edge, - and that a structural part ( 11 ; 12 . 13 ) a tensioning structure ( 10 ) over the outside of the component receptacle ( 1 ) protrudes outwards in the direction of the peripheral edge. Clamping device part according to the preceding claim, characterized in that the structural part ( 11 ; 12 . 13 ) projects beyond the peripheral edge to the outside and the coupling half ( 16 . 17 ) on the structural part ( 11 ; 12 . 13 ) is arranged outside the peripheral edge. Clamping device part according to one of the two preceding claims, characterized in that the coupling half ( 16 ; 17 ) a docking side ( 16a . 17a ) for the other coupling half ( 17 ; 16 ) in the same direction as the inside of the recording bed ( 4 ; 6 ). Clamping device part according to one of the preceding claims, characterized in that the structural part ( 12 . 13 ) is at least substantially U- or L-shaped. Clamping device part according to one of the preceding claims, characterized in that a joint ( 14 . 24 ; 5 . 15 ) the component receptacle ( 1 ; 5 ) and the structural part ( 11 ; 12 . 13 ) movably interconnects, so that the position of an outer end of the structural part ( 11 ; 12 . 13 ) can be changed in the longitudinal direction of the peripheral edge. Clamping part according to one of the preceding Claims, characterized in that it is one of the tensioning structure parts of Clamping device according to one of claims 1 to 19. Method for joining components using the clamping device according to one of Claims 1 to 19, in which a) a first component (B1) is received by the first clamping device part, b) a second component (B2) is inserted into the receiving bed ( 6 ) of the second clamping device part is inserted, c) the clamping device parts by means of the coupling halves ( 16 . 17 ) and thereby the recorded components (B1, B2) are clamped relative to each other in a joining position, d) the components located in the clamping device (B1, B2) by means of a joining tool ( 30 ; 31 ) permanently fixed together to form a joining compound (B1 + B2), e) the tensioning device parts are detached from each other f) and the joint assembly (B1, B2) from the receiving bed (FIG. 6 ) is taken. Method according to the preceding claim, in the clamping device after production of the joining compound (B1 and B2) with an underside of the second clamping device part on or at a Pad placed and the tensioner parts after placing detached from each other become. Method according to one of the preceding claims, in which the clamping device with the components (B1, B2) clamped in the joining position relative to one another by means of an actuator ( 27 . 28 ) to the joining tool ( 30 ) and relative to the joining tool ( 30 ) is positioned in a start position for connecting the components (B1, B2). Method according to one of the preceding claims, in which one of component parts ( 1 . 5 ) and joining tool ( 30 ; 31 ) is moved in the connection of the components (B1, B2) relative to the other in space, so that the components (B1, B2) along a by the relative movement between the component receptacles ( 1 . 5 ) and the joining tool ( 30 ; 31 ) certain path are connected to each other to the joining group. Method according to the preceding claim, in which the other consists of component recordings ( 1 . 5 ) and joining tool ( 30 ; 31 ) is stationary in the connection of the components (B1, B2). Method according to one of the preceding claims, in the components (B1, B2) connected by roll hemming become. Method according to the preceding claim, in which a receiving bed ( 4 ) of the first fixture part is used as a folding bed. Method according to one of the preceding claims, in the first clamping device part, the first component (B1) firmly holds, preferably by suction. Method according to one of the preceding claims, in which a clamping device according to claim 19 is used and the position of the peripheral edge of the clamping structure ( 10 ) is changed during connection.