DE102017009454A1 - Device for joining at least two components - Google Patents

Abstract

The invention relates to a device (10) for joining at least two components (12, 14), with a holding-down device (18), and with a holding device (18) opposite and at least one recess (32), in which at least a portion of the joining (34) at least one of the components (12, 14) can be pressed, having die (30) for supporting the components (12, 14) during the joining, wherein the recess (32) and / or the hold-down (18) on at least one side (38, 40, 48, 50) is open.

Description

The invention relates to a device for joining at least two components according to the preamble of patent claims 1 and 6, respectively.

Such a device for joining at least two components, in particular by means of a joining element, for example, is already the EP 606 993 A1 , of the EP 2 631 022 A1 and the EP 1 078 701 A2 to be known as known. The device has a holding-down device designed, for example, as a mouthpiece, which is supported, for example, for holding down the components during joining to a surface of one of the components facing the device during joining. For example, the components are joined together by means of at least one joining element. In this case, for example, the joining element is guided by means of the hold-down. For this purpose, for example, the holding-down device designed as a mouthpiece has a guide channel in which the joining element can be received or initially received. For example, by means of a punch, which is translationally moved relative to the hold-down along the guide channel and in particular in the guide channel, for example, the joining element is moved at least a piece along the guide channel and thereby guided by the hold-down, wherein the joining element by means of the punch at least partially into the Components is driven. As a result, the components are joined together.

The device further comprises a die opposite the blank holder for supporting the components during the joining. In this case, the die has at least one recess into which at least one partial area of at least one of the components can be pressed in or pushed in during the joining process. The hold-down is used, for example, to prevent excessive lifting of the components from the die. For example, since the joining element is driven into the components, at least said portion is pressed into the die. As a result, the components can be joined specifically and defined.

Object of the present invention is to develop a device of the type mentioned in such a way that the components can be joined together particularly advantageous.

This object is achieved by a device having the features of patent claim 1. Advantageous embodiments with expedient developments of the invention are specified in the remaining claims.

In order to develop a device specified in the preamble of claim 1 type such that the components can be particularly advantageous joined together, it is inventively provided that the recess and / or the hold-down on at least one side, in particular on two opposite sides, is open , As a result, the die or the hold-down can be designed to be particularly narrow, so that the components can also be joined together via particularly narrow flanges, that is, connected to one another. In particular, it is conceivable that the hold-down device or the recess is flattened on the mentioned side or on the sides.

In particular, it is conceivable to add the components by means of a joining element, which is driven into the components, in particular by means of a punch. Alternatively, it is conceivable that the components without such a Fügelement be joined together, for example by means of clinching, ie by clinching (CL). The hold-down device designed or used, for example, as a mouthpiece has, for example, a guide channel in which the joining element is at least partially receivable or initially received. The device comprises, for example, a punch, which, in particular along a direction of movement, relative to the hold-down, in particular translationally, is movable. In particular, the stamp can be moved, for example, in the guide channel and thereby along the guide channel. In order to join the components, the joining element designed, for example, as a rivet, in particular as a solid rivet or semi-hollow punch rivet, is driven into the components, in particular by means of the ram. For this purpose, the stamp is moved along the direction of movement in the guide channel and thereby moved toward the components. Thereby, the joining element is moved by means of the punch at least a piece along the guide channel and driven in the sequence in the components. Under the feature that the hold-down is designed to be open on the at least one side, is to be understood in particular that the guide channel is designed to be open on the respective side, so that the hold-down can be made particularly narrow. In particular, the narrow configuration of the die or of the hold-down means that the die or the hold-down has a first extension running along a first direction and a second extension running along a second direction. The first direction and the second direction thereby span a plane which, for example, runs perpendicular to the direction of movement. In particular, the second direction extending along the second direction can be made particularly small and be less than the first extension, whereby the die or the hold-down can be made particularly narrow. As a result, the hold-down device or the die can also be supported on particularly narrow flanges of the components used as joining flanges so that the components can be joined together via the narrow flanges by driving the joining element into the flanges. The method can be used in particular for clinching, solid riveting or other joining methods.

The invention is based on the finding that, in particular when joining body parts for vehicles, there is an attempt to join the body parts together via flanges as narrow as possible. Usually, the flanges, in particular their width, determined by the device, which is used for joining the components or body parts. This is the case in particular when the body parts are joined via their flanges by means of a joining element and thereby, for example, by means of semi-hollow punching rivets. Usually, the flanges must have a sufficient width to support both the usually round downholder and the usually round die on the flanges can.

The die is a die, which is used for the formation of a joining point. Dies or hold-downs with an outside diameter of 18 millimeters have become established. For joining on the other hand narrower flanges, as is desired in the automotive industry, as small as possible joining elements are used in areas such as the door entry, which can be set, for example, with another tool. Here, the outer diameter is for example 16 millimeters. However, these smaller rivets also have a smaller area of application and above all a lower strength than larger rivets in contrast, which are joined by means of tools with an outer diameter of 18 millimeters. Especially in the area of the door entry, which is greatly deformed and loaded in case of accidental application of force, it is desirable to keep the width of the flanges for joining the components low, but to use a sufficiently large joining element.

The mouthpiece used as a hold-down is used to fix the components to be joined. Furthermore, the mouthpiece is used for guiding and positioning the joining element designed, for example, as a rivet, in particular immediately before joining. This is usually done by at least one support pad, which is also referred to as a support point. Preferably, several, so at least two or three or more support points are used. These may be arranged, for example, radially symmetrical.

Since it is now provided according to the invention that the hold-down device or the recess on the at least one side, in particular on the opposite sides, is open, it is possible to keep an outer diameter or an outer circumference of the hold-down or the die particularly low, that is Hold-down or the die to design particularly narrow, at the same time a sufficiently large joining element, that is, a joining element with a sufficiently large outer diameter, used and joined by means of the device according to the invention. It is for example possible that the joining element protrudes in its at least partially arranged in the hold-down and thus in the guide channel state on the at least one side, in particular on the opposite sides, from the hold-down or from the guide channel. Furthermore, due to the fact that an outer circumference or outer diameter can be kept particularly low, the hold-down device can also support a particularly narrow flange with a particularly small flange width, so that the components join via particularly narrow flanges by means of the largest possible joining element, in particular rivet can be. As a result, the components can be connected as firmly as possible via their narrow flanges.

The device can be used, for example, to set the joining element formed, for example, as a rivet, in particular as a solid rivet or half-high rivet, so that semi-hollow punch rivets can be made, for example, by means of the device as a joining technique. However, the previous and following versions can also be transferred for clinching or clinching and punching rivets and vice versa.

In order to develop a device specified in the preamble of claim 6 type such that the components can be particularly advantageous joined together, it is inventively provided that the recess or the die and / or the hold-down in a plane extending along a first direction first Extension and extending along a perpendicular to the first direction extending second direction second extension, which is less than the first extension. Thus, the recess or the die and / or the hold-down is flat, that is flatter along the second direction than along the first Direction. In this case, the recess or the hold-down can be completely closed in its or its circumferential direction.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or in the figures alone can be used not only in the respectively specified combination but also in other combinations or in isolation, without the scope of To leave invention.

• 1 ausschnittsweise eine schematische Schnittansicht einer erfindungsgemäßen Vorrichtung gemäß einer ersten Ausführungsform zum Fügen wenigstens zweier Bauteile mittels eines Fügeelements;
• 2 eine schematische Seitenansicht einer Matrize der Vorrichtung;
• 3 eine schematische Draufsicht der Matrize;
• 4 eine schematische Perspektivansicht der Matrize;
• 5 ausschnittsweise eine schematische Schnittansicht der miteinander gefügten Bauteile;
• 6 eine schematische Schnittansicht eines Mundstücks der Vorrichtung entlang einer in 7 gezeigten Schnittlinie B-B;
• 7 eine schematische Schnittansicht des Mundstücks entlang einer in 6 gezeigten Schnittlinie A-A; und
• 8a-d jeweils ausschnittsweise schematische Draufsichten der Matrize gemäß unterschiedlichen Ausführungsformen.

The drawing shows in:

• 1 a schematic sectional view of a device according to the invention according to a first embodiment for joining at least two components by means of a joining element;
• 2 a schematic side view of a die of the device;
• 3 a schematic plan view of the die;
• 4 a schematic perspective view of the die;
• 5 partially a schematic sectional view of the components joined together;
• 6 a schematic sectional view of a mouthpiece of the device along a in 7 shown section line BB;
• 7 a schematic sectional view of the mouthpiece along a in 6 shown section line AA; and
• 8a-d each detail schematic top views of the die according to different embodiments.

In the figures, the same or functionally identical elements are provided with the same reference numerals.

1 shows a detail of a schematic sectional view of a device 10 according to a first embodiment for joining at least two components 12 and 14 ( 5 ) by means of a joining element 16 , The joining element 16 is a rivet, in particular a semi-hollow punch rivet, so that the device 10 for performing a joining process for joining or joining the components 12 and 14 is trained. As the joining element 16 for joining the components 12 and 14 for example, as a rivet, in particular as Halbhohlstanzniet trained joining element 16 is used, the method is designed as semi-punched rivets. However, the foregoing and following embodiments can be readily applied to other joining methods such as clinching or punching rivets.

The device 10 includes a present as a mouthpiece 18 trained or used for use down device, which when joining the components 12 and 14 on one of the device 10 when joining facing surface 20 of the component 12 is supported or supported. This is the mouthpiece 18 used to the joining element 16 to lead during joining. For this purpose, the mouthpiece 18 a guide channel 22 on, in which the joining element 16 initially arranged or recorded. The device 10 further comprises one at least partially in the guide channel 22 arranged and relative to the mouthpiece 18 along a in 1 by a double arrow 24 illustrated movement direction translationally movable punch 26 , which for joining in a coincident with the direction of movement and in 1 through arrows 28 illustrated joining direction relative to the mouthpiece 18 is moved translationally. This is the stamp 26 on the components to be joined 12 and 14 moved. By moving the stamp 26 relative to the mouthpiece 18 in the joining direction is the joining element 16 by means of the stamp 26 a piece along the guide channel 22 moved while using the guide channel 22 or by means of the mouthpiece 18 guided. Furthermore, the joining element 16 by means of the stamp 26 at least partially moved in the joining direction along the direction of movement and thereby in the components 12 and 14 driven in, which looked particularly good 5 is recognizable.

The device 10 further includes a mouthpiece 18 along the direction of movement opposite die 30 which one the mouthpiece 18 , in particular the guide channel 22 , opposite recess 32 having. Out 5 is recognizable that the components 12 and 14 when driving the joining element 16 into the components 12 and 14 each be at least partially reshaped. This is at least a subarea 34 of the component 14 into the recess 32 pressed. The matrix 30 is thus used as a die to the components 12 and 14 support and a joint point or a joint area in which the components 12 and 14 by means of the joining element 16 be joined together to train targeted and beneficial. Further, the mouthpiece 18 used as hold-down to the components 12 and 14 at the die 30 support and unwanted lifting of the components 12 and 14 from the matrix 30 to avoid when joining.

The components 12 and 14 For example, body parts, which via respective, also referred to as Fügeflansche flanges 36 be connected to each other. Thus, the joining element 16 in the flanges 36 driven.

To the flanges 36 or to be able to keep their width particularly narrow or low, so that a particularly advantageous joining of the components 12 and 14 can be realized is - how very good 3 and 4 is recognizable - for example, the recess 32 on opposite sides 38 and 40 open. While 2 the matrix 30 in a side view shows 3 the matrix 30 in a top view. How very good 3 and 4 can be seen results from the fact that the recess referred to as a matrix engraving 32 on the pages 38 and 40 open, a jetty 42 which is symmetrical to an axis of flight 44 a shaft 46 the matrix 30 can be trained. Furthermore, it is conceivable that the bridge 42 offset to the escape axis 44 or otherwise configured. The remaining die engraving may, but need not, be radially pronounced.

One of the components 12 and 14 For example, is made of a steel, in particular CR340, and has, for example, a thickness of 1 millimeter. The other of the components 12 and 14 is for example made of aluminum, in particular of AA6111, and has, for example, a thickness of 2.5 millimeters. In conventional devices, the die engraving or the recess 32 completely circumferentially closed in the circumferential direction. In contrast, the recess is 32 at the device 10 open. The remaining die engraving does not necessarily have to be circular.

Out 6 and 7 it can be seen that as an alternative or in addition to the open configuration of the recess 32 or the die 30 the mouthpiece 18 or the guide channel 22 on opposite sides 48 and 50 is open. By this open configuration of the recess 32 or the guide channel 22 can the die 30 or the mouthpiece 18 be made particularly narrow, so that the mouthpiece 18 or the die 30 also on the very narrow flanges 36 can be supported. This allows the components 12 and 14 on the narrow and thus only a small respective width having flanges 36 be joined together. At the same time it is possible as the joining element 16 to use a particularly large joining element, in particular with a large outer diameter, so that the components 12 and 14 over the narrow flanges 36 can be particularly firmly connected to each other. In particular, it is conceivable as the joining element 16 to use a particularly large rivet such as a five-rivet.

The mouthpiece 18 does not necessarily have to be circular. How very good 6 and 7 can be seen, for example, at least or exactly three also referred to as support points support points 52 on the mouthpiece 18 provided, wherein the joining element 16 at the support points 52 on the mouthpiece 18 and in particular in the guide channel 22 can be fixed. The support points need not necessarily be symmetrical, but may be arranged asymmetrically to each other. Usually, the width of the flanges 36 in mechanical joining techniques such as riveting, in particular the semi-hollow punching rivets, predetermined or determined by the device also referred to as a joining tool, for driving the joining element 16 into the components 12 and 14 is used. Usually, therefore, the flanges 36 have a sufficient width to the device on the flanges 36 to be able to support.

Because the recess 32 or the guide channel 22 Now, however, is open, the die 30 and the mouthpiece 18 be made particularly narrow, so that the width of the flanges 36 can be kept very low. In other words, it is because the recess 32 and the mouthpiece 18 on the opposite sides 38 and 40 respectively 48 and 50 is open, allows, also referred to as a joining tool device 10 To design particularly narrow, so that especially narrow flanges and thus components can be joined with narrow flanges.

8a shows a second embodiment of the device 10 , In the second embodiment, the recess 32 completely closed in its circumferential direction. Here is the matrix 30 or the recess 32 formed flat so that it has a first extent, which runs along a first direction extending in a plane. The matrix 30 or the recess 32 further includes a second extension extending along a in-plane second direction that is perpendicular to the first direction and less than the first extent. In the second embodiment, the recess 32 on the opposite sides 38 and 40 flattened. The same applies to an in 8b shown third embodiment. At an in 8c shown fourth embodiment, the recess 32 or the die 30 related to the pages 38 and 40 just on the side 40 flattened. Finally shows 8d a fifth Embodiment in which the recess 32 on the website 38 flattened and open.

Overall, it can be seen that the recess 32 or the mouthpiece 18 does not necessarily have to be open, neither on one side nor on both sides. There may be a fine line of material left over, leaving the recess 32 or the mouthpiece 18 closed is. This fine line need not necessarily sit on the material to support it and / or fix the sheet assembly. The function of the hold-down (fixation of the components to be joined) take priority, the solid areas.

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• EP 606993 A1 [0002]
• EP 2631022 A1 [0002]
• EP 1078701 A2 [0002]

Claims (6)

Device (10) for joining at least two components (12, 14), with a holding-down device (18), and with a hold-down (18) opposite and at least one recess (32) into which at least a partial region (34) at least during the joining one of the components (12, 14) can be pressed in, having the die (30) for supporting the components (12, 14) during the joining, characterized in that the recess (32) and / or the hold-down (18) on at least one side ( 38, 40, 48, 50) is open. Device (10) according to Claim 1 , characterized in that the recess is at least partially formed as a circle segment or has a different shape from a circular shape. Device (10) according to Claim 1 or 2 , characterized in that on the hold-down (18) at least or exactly three support points (52) for aligning, in particular centering, and / or holding the joining element (16) are provided. Device (10) according to Claim 3 , characterized in that the support points (52) are arranged asymmetrically or symmetrically to each other. Device (10) according to one of the preceding claims, characterized in that the hold-down device (18) and / or the die (16) is circular or has a different shape from a circular shape. Device (10) for joining at least two components (12, 14), with a holding-down device (18), and with a hold-down (18) opposite and at least one recess (32) into which at least a partial region (34) at least during the joining one of the components (12, 14) can be pressed, having the die (30) for supporting the components (12, 14) during joining, characterized in that the recess (32) and / or the hold-down (18) in a plane along a first extension extending in a first direction and a second extension extending along a second direction perpendicular to the first direction, which is smaller than the first extension.

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