WO2019210937A1

WO2019210937A1 - Rotary welding tool, rotary welding device, method for rotary welding, and part manufactured with same

Info

Publication number: WO2019210937A1
Application number: PCT/EP2018/061082
Authority: WO
Inventors: Axel VIETZE; Peter Solenthaler
Original assignee: Telsonic Holding Ag
Priority date: 2018-05-01
Filing date: 2018-05-01
Publication date: 2019-11-07
Also published as: DE112018007541A5

Abstract

The invention relates to processing tools (10), processing devices and methods, more particularly for rotary welding, and parts comprising a processing location, at which more particularly a first component of the part is joined to a second component of the part by means of rotary welding. The processing tool (10) has a longitudinal axis (A) about which it is or can be arranged to rotate, an interface (15) for connection to a rotary drive, and a processing surface (11.3), which can be brought into contact with at least one workpiece (50). The processing tool (10) has for example at least one projection (16) pointing away from the longitudinal axis (A), more particularly oriented perpendicular to the longitudinal axis (A), more particularly at the end (13) of the processing tool (10) opposite the interface, having at least one processing surface (11.3), wherein the projection is eccentric and/or circumferential.

Description

WHITENING WHITENER, WHEEL WELDING DEVICE, WHITENING METHOD AND COMPONENT MADE THEREFOR

The invention relates to processing tools, Bearbeitungsvor devices and methods, in particular for torsional welding, and components comprising a processing point to which in particular a first component of the component with a two-th component of the component is connected by means of torsional welding.

With welding in the present application Ver driving are referred to, in which between two parts to be joined Ver is made by a tool that performs a ro animal movement, a friction energy is entered in the connection point.

Rotational welding includes, for example, friction stir welding, in which the friction energy is generated by a wear-resistant tool, or torsional ultrasonic welding, in which a sonotrode carries out a torsional movement about a torsion axis.

The advantage of Verdrehschweissens is that the BEWE movement of the machining tool usually has transversely to the direction of the compound and the method is therefore suitable for susceptible chained parts.

A torsion sonotrode is known, for example, from EP 1 930 148 A1. It has at its one end a perpendicular to egg ner torsion axis extending annular contact surface to conduct a torsional ultrasonic vibration in a ver to be welded component. At the other end, the Torsionssono electrode is coupled with a device for introducing the torsional ultrasonic vibration. From EP2643119 Al is also a Torsionssonotrode be known, with a sonotrode head on which with respect to the Torsi onsachse circumferentially welding surfaces are arranged. The So notrodenkopf generally comprises at least two or more, before given four, circumferentially formed welding surfaces. It may also be that n work surfaces are provided, which are uniformly arranged over the circumference at an angle of 360 ° / n, where n is an integer> 1.

The known Torsionssonotroden generally have sonotrodes heads, which are configured substantially symmetrically with respect to the longitudinal or torsion axis, so that there are no imbalances with respect to the torsion axis.

This has the disadvantage that the known processing tools have a head which is rather bulky and can only be attached to the outside of convex workpieces or flat workpieces. If the workpiece is concave, the desired connection point is in or on a recess, farther away from an edge or in the region of an undercut, then the known machining tools can either not be brought to the connection point or provide only a too small working surface. It is not possible, for example, to fasten a contact element within a housing when the clear opening of the housing is smaller than the diameter of the tool head and / or if the distance ei Nes contact element at the bottom of the housing of the Gehäuseöff opening greater than the radius of the Works head is.

A processing point can also be difficult to access that already mounted elements prevent or make it difficult to approach the longitudinal axis of a machining tool to the workpiece. It is therefore the task of overcoming the disadvantages of the known and to allow the processing of hard to reach processing centers. In particular, editing tools, processing devices and procedures are bereitge provides, with which difficult to reach Bearbeitungsstel len are machinable, as well as components that are machined on a difficult he reachable processing site.

The object is achieved by a machining tool having a longitudinal axis about which it is rotatably arranged or arranged bar. The machining tool has an interface for connection to a rotary drive. For this purpose, the machining tool can have, for example, a screw hole, in particular axially aligned, a clamping ring can be provided, or at least one contact surface.

Under a rotary drive is both a drive for a continu- ous rotation, as well as a vibrator, for example, an ultrasonic converter, understood.

The machining tool also has a Bearbeitungsflä surface, which can be brought into contact with at least one workpiece.

The machining tool has according to a first aspect of the invention at least one direction away from the longitudinal axis Auskra tion. The projection contains at least one processing surface. The projection is asymmetrical and / or circumferential with respect to the longitudinal axis. By circumferential is meant that the projection extends radially in all directions away from a Grundköper the machining tool. The projection can protrude from one, for example substantially zy-cylindrical, basic body of the machining tool in the radial direction and / or in the longitudinal direction.

The projection is in particular perpendicular to the longitudinal axis

aligned and provided in particular at the end of the machining tool, which is opposite to the interface.

A provided on the projection machining surface may have a distance from the longitudinal axis, which is sufficiently large to reach far away from an edge of a workpiece machining processing points to which a Grundköper the machining tool processing is not heranführbar. In this case, the provided on the projection processing surface preferably from the lateral surface of the body relative to the Längsach se at a distance.

The projection can be shaped so that it is adapted to the geometry of a workpiece and the working surface is so ge targeted to a specific point of the workpiece can be moved there and produces a processing point.

The machining tool may have at least one, in particular aligned perpendicular to the longitudinal axis, projection, which in turn is formed with a cylindrical lateral surface. The processing surface may be formed on this lateral surface of the collar.

The machining tool may have at least one, in particular aligned perpendicular to the longitudinal axis, projection, wherein the projection is annular, star-shaped or finger-shaped. The projection can have a lateral surface which runs parallel to the longitudinal direction or with this includes NEN angle. The processing surface may be formed on this lateral surface.

The projection may extend more in one or more directions from the longitudinal axis than in other directions when the projection is, for example, star or finger shaped. Be working surfaces are preferably located at the furthest removed from the longitudinal axis areas of the projection and can thus achieve workpiece surfaces and / or machining points on workpieces that can not bring zoom close to the longitudinal axis of the machining tool.

In an advantageous embodiment, the processing tool has at least one processing surface which is arranged on a radially outwardly directed outer surface of the projection or on a radially inwardly directed inner surface of the projection.

The radially outwardly or radially inwardly directed surface may extend parallel to the longitudinal axis.

The machining tool can thus grip edges of workpieces and process backs of workpieces to which it can be moved only to a front side.

However, the machining tool can also have at least one machining surface, which is arranged on at least one surface of the projection, which runs approximately perpendicular to the longitudinal axis. The working surface is preferably arranged eccentrically. The working surface may then face away from the face or be attached to the projection so as to face the side where the interface is located.

The object is also achieved by a machining tool, in particular as described above, which has a Längsach se, around which it is rotatably arranged or can be arranged. The machining tool has an interface to the connec with a rotary drive, as well as a processing surface which can be brought into contact with at least one workpiece.

The machining tool has at least one surface Bearbeitungsflä, which is arranged asymmetrically with respect to the longitudinal axis. If the machining tool has more than one machining surface, the entirety of the machining surfaces is arranged asymmetrically with respect to the longitudinal axis. The processing surfaces can not, for example, by rotation about the longitudinal axis into each other or it results from Dre hung the processing tool to the longitudinal axis, except for egg ner rotation by integer multiples of 360 °, no equivalent arrangement of the processing surfaces.

The surface normal of the processing surface preferably encloses an angle of not equal to 90 ° with the longitudinal axis or the processing surface points to the longitudinal axis.

The processing surface may be mounted on a projection which protrudes ra dial and / or in particular in the longitudinal direction of the surface of a base body.

The working surface may therefore be arranged on a base body of the machining tool, that the main body can be brought to certain points of the workpiece ge is feasible and there manufactures a processing station. For example, a machining point can be produced at an obliquely adjacent to a projection the surface of a workpiece to which a symmetrically designed machining tool can not be moved.

The object is also achieved by a machining tool, in particular as described above, which has a Längsach se, around which it is rotatably arranged or can be arranged. The machining tool has an interface to the connec with a rotary drive, as well as a processing surface which can be brought into contact with at least one workpiece. The Be processing tool has at least one with respect to the Längsach se eccentrically arranged processing surface, which is arranged in particular special on the end face of the machining tool.

The respective processing surface has substantially in the direction of the longitudinal axis. Their center, that is the center of gravity, lies outside the longitudinal axis.

The working surface can face away from the front side or point to the front side in order to reach behind edges.

Several processing surfaces may be arranged symmetrically with respect to the longitudinal axis and / or symmetrically to each other.

With such processing surfaces also very small Bearbeitungsunsgsstellen can be realized.

The at least one processing surface may be arranged on a projection. In an advantageous embodiment, the processing surface ra dial outside a lateral surface of the machining tool is arranged to.

The lateral surface may be the surface of a base body of the Be processing tool from which, for example, extends from a collar on which the processing surface is located.

In particular, the processing surface is arranged radially with a distance of at least 3 to 160 mm from the lateral surface. The lateral surface in turn has a radial distance to the Längsach se.

It is preferably a cylindrical outer surface which has the same radial distance to the longitudinal axis in all directions.

Typically, the distance from the lateral surface to the longitudinal axis is 5 mm to 70 mm, preferably 10 mm to 60 mm.

The machining tool can be tuned to an excitation with a torsional ultrasonic oscillation with a wavelength l and the machining surface can be arranged radially at a distance of at least l / 64, preferably at least l / 32, particularly preferably at least l / 16 to the lateral surface.

The processing tool may be, for example, a sonotrode that can be connected to a converter.

The machining surface on a machining tool as described above can be referenced to the longitudinal axis at any angle, from 0 ° to max. 180 °, be arranged. In a preferred embodiment of the machining tool, the machining tool has at least one pedestal with a machining surface.

The pedestal can be attached to the front or peripheral side of an approximately zy-cylindrical body or on a Auskra supply.

The pedestal may be formed integrally and integrally with a Grundkör by and / or with a projection of the machining tool.

However, the pedestal is particularly preferably a separate component, which is in particular connectable or connected to a base body or a projection of the machining tool.

With the help of such pedestals prefabricated processing tools can be prepared specifically and individually for the machining of specific workpieces in the form of basic bodies. The pods to be attached may be selected from a variety of available pods with regard to the size of the desired processing surface and with respect to a particular height above the outside surface of a body or projection of the processing tool.

Preferably, the machining tool has at least one, in particular special aligned perpendicular to the longitudinal axis, projection, which has a plurality of pedestals with working surfaces.

The pedestals may have different shapes and / or different distances Liche from a base. By a Dre increase of the machining tool can thus be compared to the longitudinal axis differently positioned and / or different large processing areas are provided. The machining tool can thus be used for various applications and / or for the machining of differently located workpiece surfaces.

In a particularly advantageous embodiment of the invention, the machining tool has at least one leveling compound, which serves as countermass in at least one machining surface arranged asymmetrically with respect to the longitudinal axis.

The compensation may be necessary if the processing surface has egg nen greater distance from the longitudinal axis than the rest of the machining tool or as a Grundköper the machining tool, especially if the processing surface arranged on a direction away from the longitudinal axis projection and / or pointing away from the longitudinal axis pedestal is.

Preferably, the leveling compound is in a longitudinal Ab stand, that is arranged at a distance along the longitudinal axis of the processing surface, in particular at a location of a vibration belly. The balancing mass then does not disturb the deliberately asymmetrically selected arrangement of the working surface.

The positioning of the working surface of hard to access points of the workpiece is not affected by the balancing mass.

The object is also achieved by a machining tool, in particular as described above, which has a Längsach se, around which it is rotatably arranged or can be arranged. The machining tool has an interface to the connec with a rotary drive, as well as a processing surface which can be brought into contact with at least one workpiece. The machining tool is tuned to a self-resonance of the torsional vibration system at a wavelength l. The machining tool has a length in the direction of the longitudinal axis, so that the distance between the machining surface and the rotary drive is an integer multiple hl / 2 of half the wavelength of l / 2 of the machining tool with n> = l. With respect to a given frequency, the length is thus chosen such that natural oscillations of the wavelength h 1/2 can be generated, where n is an integer, preferably a number n> 4.

An axial length of the machining tool is expediently chosen so that it performs at a given frequency ei ne standing wave or natural vibration with the wavelength l. The at least one machining surface can lie with respect to a wavelength of a natural vibration of the machining tool, for example a torsion sonotrode, on a line of the maximum, that is to say in the case of a vibration antinode. The shortest possible axial length is 1/2.

The machining tool has a processing tool extending through it and extending along the longitudinal axis extending cavity. This ends in a Ausmün extension, which is arranged on an end face of the machining tool is. The cavity may serve to axially perform an operating element which is connected to a counter tool which is to be brought close to the processing surface, for example when playing with an anvil. The control element can be moved within the cavity, whereby the tool can be rotated about the longitudinal axis or moved in the direction of the longitudinal axis.

In particular, the machining tools described above are welding tools for torsionally welding at least two workpieces. However, the processing tools can also be used for other machining purposes, such as joining, forming, heating, polishing, sealing, exciting, separating or activating.

The object is further achieved by a Bearbeitungsvor direction, containing at least one machining tool as described above and at least one anvil.

In an advantageous embodiment, the machining tool has a plurality of processing surfaces. The machining tool can be movably mounted, wherein it is in particular rotatably mounted about the longitudinal axis, so that different machining surfaces can be brought into a machining position, in particular a welding position.

According to an advantageous embodiment, the machining device has a plurality of processing surfaces and a plurality of anvils. The anvils are each individually arranged with respect to the machining surfaces movable. In particular, the anvils are arranged such that optionally one or more of the anvils can be brought into engagement with a workpiece inserted between the anvil and the machining tool. It can be provided for respective processing surfaces an anvil or meh rere associated anvils.

The anvils can be arranged so that contact surfaces of the anvils together with the processing surface define a working space in which one or more workpieces can fit. By a relative movement of anvils and Bearbeitungswerk tool, the volume of the working space can be reduced.

It can, for example, both working surfaces, as well as each associated anvils, be arranged revolver-like around the longitudinal axis.

Advantageously, at least one anvil is provided which has at least one contact surface which is parallel to the loading processing surface of the associated processing tool.

The anvil may have a contact surface, which with respect to the longitudinal axis at an angle of 0 ° to 180 °, preferably from 60 ° to 180 °.

The object is further achieved by a Bearbeitungsvor direction, in particular as described above, which includes a machining tool with cavity as described above and a boss on. The anvil is movable by means of a through the hollow space through and out of the mouth operable management element.

The anvil is preferably connected to a control element, which leads through the cavity and in particular is mounted so that it does not vibrate with a vibration of the machining tool with the machining tool. The operating element can be rotated relative to the machining tool and can be moved along the longitudinal axis. be pushed. It can for example be moved so that the anvil initially in the longitudinal direction from a larger Ab stand from the processing surface, the processing tool then convincing is guided to the workpiece or vice versa and at closing the distance between the anvil and the processing surface in the longitudinal direction is reduced until a workspace is created. This can then be further reduced by further shifting the Am bosses.

The processing devices described above include from serdem preferably a rotary drive, for example, an ultrasonic converter.

The object is also achieved by a method for machining at least one workpiece using one of the machining tools as described above, the method comprising the following steps. First, a contacting of the processing surface of the machining tool with at least one workpiece takes place. Subsequently, the workpiece is machined by rotating the machining tool about its longitudinal axis.

The machining can be selected from the group consisting of welding, forming, heating, polishing, sealing, activating, separating and activating.

The machining is in particular a twist-welding of two or more components of at least one workpiece, preferably a torsional ultrasonic welding.

At least one workpiece may consist of a material or comprise a material which is selected from the group consisting of metal, plastic, composite materials. Advantageously, the processing is performed at a frequency in the range of 0.1 kHz to 100 kHz. In particular, a friction stir welding can be carried out at a frequency of 150Hz to 250Hz or an ultrasonic welding at a frequency of 10kHz to 50kHZ.

In an advantageous embodiment of the method, the Be processing includes welding and at least one component to be welded is selected from the group consisting of conductor tracks in battery packs, parts of capacitors, electrical connections of IGBTs, grounding connections to inner surfaces of Ge housings and electrical connections in electric motors ,

The object is also achieved by a component, insbesonde re available with a method as described above. The component contains at least one processing point. In this case, it is in particular a welding point at which a first component of the component is connected to a second component of the component by means of rotary welding. By "Bear beitungsstelle" here is the sum of individual connec tion sites meant that can be produced, for example, simultaneously in a torsional welding process.

According to the invention, the machining point has a continuously changing structure from a lateral end to an opposite lateral end. A structure which changes continuously from one to another to an end is understood in particular to mean a structure which has no rotational symmetry.

The structure, for example, grinding marks or grooves, is produced in a method in which a machining tool has been rotated in relation to a longitudinal axis and has been machined with the machining tool. Tung tool connected processing surface with a Flä chenkomponente in the direction of the axis of rotation in contact with the loading processing stood.

The structure may, for example, have a pattern that shows a curvature transverse to the surface.

In particular, the structure has a pattern in which the radius of curvature transverse to the surface only increases or only decreases from one lateral end to an opposite lateral end of the processing site.

For example, a change in structure, such as a change in the radius of curvature of a pattern from one lateral end to an opposite lateral end, is due to the fact that the radius of rotation of the processing surface changes from one lateral end to the other lateral end. This is the case with respect to the axis of rotation asymmetric and / or eccentric risch arranged surfaces of the case, while, for example, kon centrally arranged processing surface usually produce structures that have a symmetry.

The object is also achieved by a component, in particular re obtainable with a method as described above and in particular as described above. The component contains at least one processing point.

According to the invention, the processing point has a curvature which is concave with respect to the surface of the component on which the processing is arranged, and the radius of curvature is greater than 100 mm. Such a curvature may, for example, arise when a machining tool has been rotated with respect to a longitudinal axis, while a machining tool connected to the machining surface was in contact with the machining point and the surface area of the machining surface encloses an angle with the axis of rotation. The large radius of curvature corresponds to the distance of the working surface from the axis of rotation.

The longitudinal axis of the machining tool may, for example, be aligned parallel to the component surface and the machining surface may point radially away from the longitudinal axis.

The distance between welding point and edge of the component can be up to 200mm for machining with a tool with overhang. For excitation frequencies of about 20 kHz, welding sites at depths of about 300mm can be achieved with an axial length of 4l / 2. Accordingly, at other frequencies, the frequencies are inversely proportional to the frequency.

In the processing point of the above-described components han delt in particular a welding point at which ei ne first component of the component with a second component of the component by means of rotary welding is connected. It can also be a polished job.

Preferably, the components described above have a machining point on which is arranged in a hard to reach place, which is selected from the group consisting of Hin terschnitt and depression or in a fold, groove, groove or groove.

In an advantageous embodiment, at least one component consists of a material or comprises a material which is selected from the group consisting of metal, plastic, composite materials.

In particular, the component is selected from the group consisting of electrical components, for example battery packs or capacitors, IGBTs and electric motors.

The invention will be explained below with reference to examples shown in FIGS. In this case, corresponding elements of different examples are provided with the same reference numerals.

Show it:

1 shows a first example of a machining tool in egg ner perspective view.

Fig. FIG. 2 shows a second example of a machining tool in a perspective view; FIG.

Fig. 3 is a third example of a machining tool in a side view;

4 shows a fourth example of a machining tool in a lateral sectional view;

Fig. 5 shows a fifth example of a machining tool in a side sectional view;

Fig. FIG. 6 shows a sixth example of a machining tool in a lateral sectional view; FIG.

7 shows a seventh example of a machining tool in a perspective view;

8 shows an eighth example of a machining tool in egg ner perspective view.

9 shows a first example of a processing device in a sectional view;

10 shows a second example of a processing device in a side view; FIG. 11 shows a first example of a component in a perspective view; FIG.

Fig. 12 is a schematic detail view of the first example of a component;

FIG. 13 shows a second example of a component in a perspective view; FIG.

Fig. 14 is a third example of a component in a perspective view;

Fig. 15 is a schematic detail view of an example of a

component

Fig. 16 shows schematically a representation of a battery pack in a perspective view.

FIG. 1 shows a first example of a processing tool 10 in a perspective view. The machining tool 10 has a longitudinal axis A about which it can be arranged rotatably. The machining tool 10 also has an interface 15, not shown in detail, for connection to a rotary drive, also not shown.

The machining tool 10 has a machining surface

che 11.1, which with at least one in this figure is not Asked workpiece 50 (see, for example, Figures 3 and 7) can be brought into contact.

The working surface 11.1 is asym metrically arranged with respect to the longitudinal axis A, wherein the surface normal N of the machining surface 11.1 is arranged parallel to the longitudinal axis A. The working surface 11.1 is thus arranged eccentrically to the longitudinal axis. The machining tool 10 comprises a pedestal 19, on which the machining surface 11.1 is provided. The pedestal 19 he stretches from the front side 14 of the machining tool 10th

The processing tool 10 has a balancing mass 22, which serves as a counterweight, since a with respect to the longitudinal axis A asymmetrically arranged pedestal 19 is present with working surface 11.1.

FIG. 2 shows a second example of a machining tool 10 in a perspective view. The machining tool 10 is also rotatably arrangeable about a longitudinal axis A and be sitting an interface 15 for connection to a rotary drive, The Bearbeitungswerkzeugzeug 10 has two processing surfaces 11.1, 11.2, each eccentrically with respect to the longitudinal axis A and on the end face 14 of the machining tool 10th are arranged.

The processing surfaces 11.1., 11.2 are each arranged on pedestals 19, which extend away from the end face 14. Since the pedestals 19 are symmetrical to each other in this case, a balancing mass is not necessary.

For editing, the machining tool 10 can be set in Drehschwin conditions, so that, for example, a machining processing surface 11.1 is moved back and forth in an angular range of 0.01-10 ° and thereby transfers energy to a workpiece, not shown.

Once the processing surface 11.1 is worn, the Bear processing tool 10 can be rotated by 180 ° about the longitudinal axis A, and the second processing surface 11.2 are used. FIG. 3 shows a third example of a processing tool 10 in a side view. The machining tool 10 has a longitudinal axis A about which it can be arranged rotatably. The machining tool 10 also has an interface 15, not shown in detail, for connection to a rotary drive, also not shown.

The machining tool 10 has a machining surface

che 11.3, which can be brought into contact with at least one workpiece 50.

The machining tool 10 has at the end 13, the interface 15 opposite, a radially away from the longitudinal axis A pointing away projection 16. The projection 16 is arranged on a base body 12 from which it faces away in the radial direction and in the longitudinal direction. The projection 16 has a ge curved shape. The projection 16 contains the Bearbeitungsflä surface 11.3.

The projection 16 and the working surface 11.3 are eccentric with respect to the longitudinal axis A.

The machining tool 10 has as counterweight for the bezüg Lich the longitudinal axis A asymmetrically arranged Bearbeitungsflä surface 11.3 a balancing mass 22.

By means of the projection 16, the work surface 11.3 can be brought to hard to reach areas 58, for example in egg ner recess 59 next to a step 62, in an interior (see Figure 8), in a slot, not shown, and others.

FIG. 4 shows a fourth example of a processing tool 10 in a lateral view. The machining tool 10 has a finger-shaped projection 16 on which a Bear beitungsfläche 11.3 is arranged, the surface normal N obliquely away from the longitudinal axis A, so with the longitudinal axis A does not include a 90 ° angle.

FIG. 5 shows a fifth example of a processing tool 10 in a side view. The machining tool 10 be sitting perpendicular to the longitudinal axis A aligned annular projection 16 with a cylindrical lateral surface 17th

A processing surface 11.3 is on a radially outwardly directed lateral surface 17 of the projection 16 and a machining processing surface 11.4 on the radially inwardly directed Innenflä surface 18 of the projection 16 are arranged, each extending approximately parallel to the longitudinal axis A.

The illustration is schematic. In practice, either only one of the processing surfaces 11.3 or 11.4 are present or at de.

FIG. 6 shows a sixth example of a machining tool 10 in a lateral view. The machining tool 10 be sitting a finger-shaped projection 16.

A working surface 11.3 points away from the longitudinal axis A. Eg egg ne further processing surface 11.4 is radially inwardly court tet and includes with the longitudinal axis A an angle of dress ner 90 °.

The illustration is schematic. In practice, either only one of the processing surfaces 11.3 or 11.4 are present or at de. FIG. 7 shows a seventh example of a machining tool 10 in a perspective view. The machining tool 10 has a longitudinal axis A about which it can be arranged rotatably. The machining tool 10 also has an interface 15, not shown in detail, for connection to a rotary drive, also not shown. The editing tool 10 has at the end 13, which is the interface 15 against, one of the longitudinal axis A radially pioneering dish-shaped projection 16. Not illustrated in the figure Bear beitungsflächen can be arranged on the lateral surface of the plate-shaped projection 16 or on the groundbreaking of the interface 15 surface.

FIG. 8 shows an eighth example of a machining tool 10 in a perspective view. The machining tool 10 has a longitudinal axis A about which it can be arranged rotatably. The machining tool 10 also has an interface 15, not shown in detail, for connection to a rotary drive, also not shown.

The machining tool 10 has at the end 13, the interface 15 opposite, a radially away from the longitudinal axis A pointing away projection 16, which has a threefold symmetry. The surface normals N of three working surfaces 11.1 respectively face away from the interface 15 and are parallel to the axis of rotation A.

Figure 9 shows a first example of a Bearbeitungsvorrich device 100, comprising a machining tool 10 and an anvil 30 in a side sectional view.

The machining tool 10 has a peripheral projection 16 pointing away from the longitudinal axis A and having a cylindrical projection. 17 and a plurality of processing surfaces 11.3, which are arranged on a surface 25 of the projection 16, which extends approximately perpendicular to the longitudinal axis A.

The machining tool 10 has a machining tool 10 extending therethrough and along its longitudinal axis A extending cavity 23 which terminates in an orifice 24, which is arranged on a front side 14 of the processing tool 10 zeugs.

The anvil 30 is arranged on a control element 32 in the form of a Stan ge, which is guided through the cavity 23 and within which is movable, so that the anvil through the cavity 23 through and out of the orifice 24 is movable out bar.

The anvil 30 requires on the processing surface 11.3 ge opposite side no holder and no drive. The processing device 100 can thus be brought as a whole to difficult to workpieces 50, 51, the example, are arranged in a housing, not shown.

The anvil 30 has a contact surface 31 which is engageable with a between anvil 30 and machining tool 10 set workpieces 50, 51 can be brought.

In a rotational oscillation of the machining tool 10 and thus the working surface 11.3 about the longitudinal axis A, the workpieces 50, 51 are welded together.

The processing surfaces 11.3 are arranged on pedestals 19, the ten different distances 20 bie from a base 21. For workpieces 50, 51 with a certain thickness, a Bear beitungsfläche 11.3 stand on a pedestal 19 with the appropriate From 20 are selected to the base 21.

Figure 10 shows a second example of a Bearbeitungsvor device 100, comprising a machining tool 10 with Auskra supply 16 and an anvil holder 130 in a side view.

On a machine frame 101, on the one hand, the machining tool 10 is arranged, which is offset by a rotary drive 40, here an ultrasonic converter, in torsional vibrations about the longitudinal axis A. The rotary drive is powered by a generator 102 with energy.

The machining tool 10 can be displaceable along the longitudinal axis A by means of a vertical displacement device 103.

On the anvil holder 130, which is also arranged on the machine frame 101, there is a plurality of anvils 30th

The anvil holder 130 is displaceable bar in a lateral direction B, so that can bring an anvil 30 in the vicinity of the processing surface 11.3 as needed. In this way, a working space 104 with a desired distance D can be produced. Alternatively, the anvil holder 130 may also be rotatable.

The anvil holder 130 or the respective anvil 30 can also be displaceable in the direction of the longitudinal axis A, so that the workpieces, not shown, are pressed during the welding between the anvil 30 and the processing surface 11.3.

FIG. 11 shows a first example of a component 500 in a perspective view. The component 500 comprises a machining center 52, in this case a welding point, on which Rather, a first component 60 of the component 500, here a hous se, with a second component 61 of the component 500, here an electrical contact, is connected by means of rotary welding.

The processing point 52 is located at a hard-to-access point, namely on the inside of the first component 60. The connection can be made, for example, with a machining tool 10, as shown in Figure 3.

The processing point 52 has a structure 55 that changes from a lateral end 53 to an opposite lateral end 54.

In FIG. 12, the structure 55 is shown schematically in a plan view. At a first lateral end 53, the structure 55 has a processing pattern with a larger radius than a second lateral end 54.

FIG. 13 shows a second example of a component 500, here an IGBT, in a perspective illustration. The component 500 comprises a plurality of processing points 52, in this case welding points, to which a first component 60 of the component 500, here a circuit board, is connected to second components 61 of the component 500, in this case electrical contacts, by means of rotary welding. The processing point 52 is located at a hard to reach place because there are already other Ele ments on the board. The connection can be made for example with a loading tool 10, as shown in Figure 1 or Figure 5.

FIG. 14 shows a second example of a component 500, here a battery cell with foils 501, in a perspective illustration. The component 500 comprises processing points 52, in this case welding points, at which first components 60 of the component 500, here foils, are connected to second components 61 of the component 500, in this case electrical contacts, by means of rotary welding.

In FIG. 15, a machining point 52 which has been produced with a machining tool 10, as shown in FIG. 5, is shown schematically in a sectional view.

The processing point 52 has a curvature 56 which is bezüg Lich the surface 57 of the component 500, on which the machining processing point 52 is arranged, is concave. The radius of curvature R is greater than 100mm.

FIG. 16 schematically shows an illustration of a battery pack 600 with a multiplicity of battery cells 500, as shown in FIG. 14, in a perspective view. The battery cells 500 are placed in a housing 601 before the components 60, 61, here the foils and the electrical connectors, are welded together.

The connectors 61 connect the battery cells 500 serially or in parallel.

The battery cells 500 are completely within the housing 601, so that the edge 602 of the housing 601 len the processing Stel 52. The connections can be made particularly well with machining tools 10, as shown in FIGS. 3 or 7, in which a projection 16 or a projection and an anvil 30 are insertable into the housing 601.

Claims

claims

1. machining tool (10), in particular welding tool for

Twist welding at least two components (60, 61) egg nes workpiece (50, 51), wherein the machining tool

(10) has a longitudinal axis (A) about which it is rotatably arranged or can be arranged, an interface (15) for Ver bind with a rotary drive, as well as a Bearbeitungsflä surface (11.1, 11.2, 11.3, 11.4), which with at least one Workpiece (50, 51) can be brought into contact,

characterized in that

the machining tool (10) at least one of the longitudinal axis (A) pointing away, in particular perpendicular to Längsach se (A) aligned, projection (16), in particular at the end (13) of the machining tool (10), the

Interface is opposite, which contains at least one Bear beitungsfläche (11.1, 11.2, 11.3, 11.4), wherein the projection is eccentric and / or circumferential.

2. Processing tool according to claim 1, wherein the Auskra

supply (16) with a cylindrical lateral surface (17) is out forms.

3. Machining tool according to one of claims 1 or 2, where in the projection (16) is annular, star-shaped or finger-shaped.

4. Machining tool according to one of claims 1 to 3, wherein the machining tool (10) at least one processing surface (11.3, 11.4) comprises on a radially outwardly directed sen surface of the projection (17) of the projection or on a radially inwardly directed inner surface (18) of the projection (18) is arranged, in particular approximately parallel to the longitudinal axis (A).

5. Machining tool according to one of claims 1 to 4, wherein the machining tool (10) at least one processing surface (11.3, 11.4), which is arranged on at least one upper surface of the projection (16) which approximately perpendicular to the longitudinal axis (A ) runs.

6. machining tool (10), in particular welding tool for

Twist welding of at least two components (60, 61) of a workpiece (50, 51), in particular according to one of claims 1-5,

wherein the machining tool (10) has a longitudinal axis (A) on which it is rotatably arranged or arranged, ei ne interface (15) for connection to a rotary drive, and a processing surface (11.1, 11.2, 11.3, 11.4), wel che with at least one workpiece (50, 51) can be brought into contact,

characterized in that

the machining tool (10) has at least one machining surface (11.1) which is arranged asymmetrically with respect to the longitudinal axis (A), wherein in particular the surface normal (N) of the machining surface (11.1) encloses an angle of not equal to 90 ° with the longitudinal axis or to the Longitudinal axis points.

7. processing tool (10), in particular welding tool for

Twist-welding at least two components (60, 61) of a workpiece (50, 51), in particular according to one of claims 1 to 6,

wherein the machining tool (10) has a longitudinal axis (A) about which it is rotatably arranged or arranged, ei ne interface (15) for connection to a rotary drive, and a processing surface (13), which with at least one workpiece (50, FIG. 51) can be brought into contact,

characterized in that the machining tool (10) at least one with respect to the longitudinal axis (A) eccentrically arranged Bearbeitungsflä surface (11.1, 11.2), which is arranged on the end face (14) of the machining tool.

8. Machining tool according to one of claims 1 to 7, wherein the machining surface (11.1, 11.2, 11.3) is arranged radially from serhalb a lateral surface of the Bearbeitungswerkzeugs (10) and in particular radially with a distance of at least 3 to 160 mm is arranged to the lateral surface.

9. Processing tool according to claim 8, wherein the Bearbei

(10) is tuned to an excitation with a torsional ultrasonic oscillation with a wavelength l and the processing surface (11.1, 11.2, 11.3) radially with a distance of at least l / 64, preferably at least l / 32, particularly preferably at least l / 16, is arranged to the lateral surface.

10. Machining tool according to one of claims 1 to 9, where in the processing surface (11.1, 11.2, 11.3, 11.4) relative to the longitudinal axis at an angle () of 0 ° to max. 180 ° is arranged.

11. Processing tool according to one of claims 1 to 11, the machining tool (10) at least one pedestal (19) with egg ner processing surface (11.1, 11.2, 11.3, 11.4).

12. Processing tool according to claim 11, wherein the machining tool (10) at least one, in particular perpendicular to the longitudinal axis (L) aligned, projection (16) and the projection (16) has a plurality of pedestals (19) with working surfaces (11.1, 11.2 , 11.3, 114), which in particular have different shapes and / or unterschiedli che distances (20) from a base (21).

13. machining tool (10) according to any one of claims 1-12, wherein the machining tool (10) at least one equal mass (22), which serves as a counterweight when the machining tool (10) with respect to the longitudinal axis (A) asymmetrically arranged processing surface has, in particular a on a projection (16) and / or a pedestal (19) arranged processing surface (11.1, 11.2, 11.3, 11.4).

14. machining tool (10) for torch-welding at least two workpieces (50, 51), wherein the machining tool (10) has a longitudinal axis (A) about which it is rotatably arranged or can be arranged, an interface (15) for connection to a rotary drive , and a Bearbeitungsflä surface (11), which with at least one of the workpieces (50,

51) can be brought into contact,

in particular a machining tool (10) according to one of the preceding claims,

characterized in that

the machining tool (10) is tuned to an excitation with a torsional ultrasonic vibration having a wavelength l, and the machining tool (10) in Rich tion of the longitudinal axis (A) has a length (L), so that the distance between the rotary drive (40) and the processing surface (11) an integer multiple (hl / 2) of half the wavelength (l) of the machining tool (10), preferably with n> 4, is.

15. machining tool (10) for torch-welding at least two workpieces (50, 51), wherein the machining tool (10) has a longitudinal axis (A) about which it is rotatably arranged or can be arranged, an interface (15) for connection to a rotary drive , and a Bearbeitungsflä surface (11), which with at least one of the workpieces (50, 51) can be brought into contact,

in particular a machining tool (10) according to one of the preceding claims,

characterized in that

the machining tool (10) extending through the machining tool (10) and extending along its longitudinal axis (A) extending cavity (23) which terminates in an orifice (24) which at one end face (14) of the machining tool (10 ) is arranged.

16. Processing device (100), comprising at least one loading processing tool according to one of claims 1 to 15 and we least one anvil (30).

17. Processing device (100) according to claim 16, wherein the machining tool (10) has a plurality of processing surfaces (11.1, 11.2, 11.3) and is movably mounted, insbesonde re about the longitudinal axis (A) is rotatably mounted, so that un ferent processing surfaces (11.1 , 11.2, 11.3) can be brought into a welding position.

18. Processing device, in particular according to claim 16 or 17, wherein the machining tool (10) has at least one processing surface Be (11.3) and wherein the processing device (100) a plurality of anvils (30), each individually with respect to the processing surface (11.3) move Lich are arranged, in particular such that optionally one or more of the anvils (30) in engagement with a between anvil (30) and machining tool (10) inserted workpiece can be brought.

19. Processing device according to one of claims 16 to 18, wherein the anvil (30) has a contact surface (31), wel che based on the longitudinal axis at an angle of maxi times 180 °.

20. Processing device, in particular according to one of che Ansprü 16 to 18, comprising a machining tool (10) ge claim 15 and an anvil (30), which by means of a through the cavity (23) and from the Ausmün extension (24) out guided operating element (32) is movable.

21. Processing device according to one of claims 14 to 18 comprising a rotary drive (40), in particular an ultrasonic converter.

22. Method for processing, in particular twist welding

at least two components (60, 61), at least one workpiece (50, 51) using a processing tool (10) according to one of claims 1 to 15, wherein the method comprises the following steps: a) contacting the processing surface (11) of the machining

tool (10) with at least one workpiece (50,

51), b) machining the workpiece (50, 51) by rotating the machining tool (10) about its longitudinal axis (A).

23. The method of claim 22, wherein the Bearbeitungsflä

surface (58), in particular on a step (59), on an undercut, in a recess, a groove or a slot or in an interior.

24. The method of claim 22 or 23, wherein the processing

is selected from the group consisting of welding, forming, heating, polishing, sealing, stimulating, separating, activating.

25. The method according to any one of claims 22, 23 or 24, wherein we least one workpiece (50, 51) consists of a material or a material which is selected from the group consisting of metal, plastic, Kompositmateria- materials.

26. The method according to any one of claims 22 to 25,

wherein the processing is performed at a frequency in the range of 0.1 kHz to 100 kHz.

27. The method according to any one of claims 22 to 26, wherein the machining comprises welding and wherein at least one component to be welded (60, 61) is selected from the group consisting of

- Tracks in battery packs,

- parts of capacitors,

Connections of IGBTs,

Grounding connections to inner surfaces of housings,

Connections in electric motors.

28 component, in particular obtainable with a method according to one of claims 22 to 27, which at least one Bear processing point (52), in particular a Schweißstel- le, on which a first component (60) of the component (500) with a second component (61) of the component (50) is connected by twist welding,

wherein the processing station (52) has a changing structure (55) from a lateral end (53) to an opposite lateral end (54), and wherein the processing site (52) is arranged, in particular, at a hard-to-reach location from the group consists of undercut, step, housing interior and recess.

29. Component, in particular according to claim 28, obtainable with egg nem method according to one of claims 22 to 27, which contains at least one processing point (52), insbesonde re a welding point, at which a first component (60) of the component with a second component (61) of the construction part (500) is connected by means of rotary welding, wherein the processing point (52) has a curvature (56) which is concave with respect to a surface of the component on which the Bear is beitungsstelle (52), wherein the Radius of curvature is greater than 100mm.

30. The component according to claim 28 or 29, wherein at least one com ponent (60, 61) consists of a material or has a Materi al, which is selected from the group consisting of metal, plastic, composite materials. 31. Component according to claim 28, 29 or 30, wherein the component

(500) is selected from the group consisting of electrical cal components, in particular battery packs or capaci tors, IGBT and electric motors.