DE102014019296A1 - Method for producing a joint connection - Google Patents

Abstract

The invention relates to a method for producing a joint connection (10) of at least two components (12, 14), in particular sheet metal components, of a motor vehicle, in which the two components (12, 14) are connected to one another via at least one mechanical joining element (16). In this case, the joining element (16) is introduced at a predetermined angle to a surface normal of the components (12, 14) in this.

Description

The invention relates to a method for producing a joint connection according to the preamble of patent claim 1.

A joint connection of at least two components and a method for producing a joint connection of at least two components are, for example, the DE 10 2006 002 238 A1 to be known as known. As a joining element, a nail is provided, which is driven by a setting tool at high speed in the components. This nail consists of a nail head, a nail shaft and a nail tip. The nail is driven at high speed through the non-pre-punched in the joining components so that the nail tip passes through both components completely and a bead-shaped material throw is formed in the nail head side component, which engages in an annular groove of the nail head. In the nail head facing away from a crater-shaped material Aufwurf is formed, which protrudes in the opposite direction.

Object of the present invention is to provide a method for producing a joint connection of the type mentioned, by means of which the components can be connected in a particularly cost-effective manner and with a particularly high holding force.

This object is achieved by a method for producing a joint connection with the features of claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.

In order to provide a method for producing a joint connection specified in the preamble of claim 1 species, by means of which the components can be interconnected in a particularly cost-effective manner and with a particularly high holding force, it is inventively provided that the two components via at least one mechanical joining element be joined together, wherein the joining element is introduced at a predetermined angle to a surface normal of the components in this. In other words, the joining element is driven obliquely to the components in this. The predetermined angle may, for example, have a value between 2 and 88 degrees, in particular between 10 and 80 degrees, in particular between 20 and 70 degrees. The predetermined angle may further include, for example, a value between 0 degrees and 85 degrees. Among the range limits - angle values - in particular 0 degrees, 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees. In other words, the Fügelement is not driven perpendicular to a component surface and / or parallel to the component surface but obliquely into the components. In other words, for example, the joining element is not inserted at 90 degrees to the surface normal. As a Fügelement example, a nail or a joining element can be used in one of the embodiments already described. To higher holding forces in the head direction, d. H. in the pulling direction and in the direction of the lead normals, the joining element, for example in the form of a nail with or without a nail head, with a nail shank and with a nail tip, is selectively driven obliquely into the two components. This creates a stronger positive connection in addition to the traction. As a result, higher holding forces can be achieved in Kopfzugrichtung, as an obliquely driven joining element leads to jamming and / or wedging of the components.

Advantageously, the joining element is introduced into the components at a joining speed of between 5 meters per second and 300 meters per second or at a joining speed of less than 5 meters per second.

In order to drive the joining element formed, for example, as a nail at a high speed (5 to 300 meters per second) into the components, bolt guns and / or powder-operated cartridges can be used. The breakdown results in a high holding force between the components. For example, if the joining element is running at a low speed, i. H. at a speed of less than 5 meters per second, introduced into the components, so there is the advantage that a lower volume can be achieved. High speeds can usually result in volumes above 130 decibels. These are generated by vibrations resulting from high setting speeds, with which the joining element usually impinges on the components. Because of these high volumes usually cost-intensive and inflexible soundproof cabins are used. Regardless of which setting speed is used, a high holding force is always ensured by the targeted oblique driving of the joining element.

In addition, it has been found that despite the use of only a very low speed with which the joining element is pressed into the components, the rigidity requirements on the components are particularly low. Thus, the components can be particularly firmly connected to each other. In addition, the overhead of a Sensors for monitoring the process compared to conventional methods are kept low.

A further embodiment of the invention provides that the joining element with a joining element shaft and a joining element tip, which is arranged at a first end opposite a second end of the joining element shaft, is used as the joining element.

Advantageously, the joining element is used as the joining element with a joining element section passing through the two components, in particular with a joining element head arranged on the joining element section, which cone-shaped and / or ogival design.

The invention also includes a joint connection of at least two components, in particular sheet metal components, of a motor vehicle, in which the two components are connected to one another via at least one mechanical joining element. In this case, the joining element has a joining element section which passes through the two components and which is of conical and / or ogival design. In other words, a tip and / or conical joining element section and / or ogival joining element section penetrates both components. The joining element section may preferably also be wedge-shaped. With an ogival form here is meant a pointed arched shape of the joining element section. This results in the advantage that a cost-effective joining element can be provided, since a simplified production can be used for this purpose and low material costs are incurred.

A further embodiment provides that the joining element has a joining element head, which is arranged on the joining element section. In other words, at the conical and / or ogival formed Fügeelementabschnitt at its wide end a Fügelementkopf, so a nail or a screw head attached. In other words, the joining element forms, for example, a nail without shank. It is therefore composed only of a tip and a joining element head. Thereby, a joining element can be provided with a simplified geometry, which is inexpensive to manufacture and can have higher holding forces.

The invention also includes a joining connection of at least two components, in particular sheet metal components, of a motor vehicle, in which the two components are connected to one another via at least one mechanical joining element, which has a joining element shaft and a joining element tip, which at a first end of the joining element against a second End of the joining element shaft is arranged. In other words, the joining element forms, for example, a nail without a head. It is therefore composed only of a joining element shaft and a tip. The joining element tip is ogival formed with a flat end. In other words, the joining element tip on an ogival contour, wherein the end does not extend to a peak but plan, as a flat surface ends. In this context, the so-called Fügelementspitze forms no peak but defines an end portion of the joining element. Accordingly, a joining element in the form of a nail with a nail shank and a flat nail tip but can be provided without a nail head. For example, the nail tip (tapered end) can be removed to a certain extent, so that a flat residual tip, in particular an ogival flat ending residual tip is maintained. Preferably, the nail tip may be formed ogival with a tapered end. Preferably, the joining element shaft can not only be cylindrical, but can be wider from the first shaft end to the second shaft end. In other words, the diameter of the second end of the joining element shaft can be greater than the diameter of the first end of the joining element shaft.

Since the joining element is formed without joining element head, no gap can form between the component surface and the joining element head. Thus, for example, no moisture can penetrate into the gap, whereby corrosion of the components can be counteracted. Furthermore, results from a joining element without head a lower weight and the interference contour, which is caused by the Fügeelementkopf can be avoided. The joining element may preferably have a joining element head, which is arranged at the second end of the joining element shaft.

The invention further includes a joining connection of at least two components, in particular sheet metal components, of a motor vehicle, in which the two components are connected to one another via at least one mechanical joining element which has a joining element shaft, at the first end of which a joining element head is arranged, one opposite to the one first end arranged second end of the joining element is flat. In other words, a Fügelementkopf, ie a nail or a screw head, attached to a joining element shaft. In other words, the joining element forms, for example, a nail without a tip, ie only with the shaft and head. This results in the advantage that a higher load capacity can be ensured, since a joining element with a flat end leads to a formation of slugs and unlike a joining element with a tip no lateral Material displacement takes place when introducing the joining element into the components.

Preferably, the joining element shaft may have a profile on its surface. In this case, the joining element shaft, for example, on its surface grooves and / or depressions and / or have a thread. This results in the advantage that the joining element has a higher load capacity and / or a higher holding force.

The joining element, which has, for example, a joining element shaft and / or a joining element head and / or a joining element tip, can be designed as a nail and / or as a bolt and / or as a pin.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and with reference to the drawings, which show in:

1 a schematic representation of the joint connection according to the invention;

2 a schematic representation of the joining element according to the invention;

3 a schematic representation of the joining element according to the invention;

4 a schematic representation of the joining element according to the invention;

5 a schematic representation of the joining element according to the invention;

6 a schematic representation of the joint connection according to the invention with two joining elements;

7 a schematic representation of the joint connection according to the invention;

8th a schematic representation of the joint connection according to the invention;

9 a schematic representation of the joint connection according to the invention; and in

10 a schematic representation of the joint connection according to the invention in a plan view.

In 1 is a joint connection 10 of at least two components 12 . 14 , in particular sheet metal components, of a motor vehicle, shown. Here are the two components 12 . 14 via at least one mechanical joining element 16 connected with each other. How out 1 it can be seen, is the joining element 16 obliquely in the two components 12 . 14 brought in. In other words, the joining element 16 at a predetermined angle to a surface normal of the components 12 . 14 incorporated into this. Will the joining element 16 , For example, in the form of a nail with a nail shank and with a nail tip with or without a nail head, targeted obliquely into the two components 12 . 14 driven, so higher holding forces are achieved in the head direction. This creates a stronger positive connection in addition to the traction. An obliquely driven joining element 16 leads to jamming and / or wedging of the components 12 . 14 to each other. As 1 can be seen forms through the introduced joining element 16 the first component 12 and the second component 14 at the joint a crater, as by the introduction of the joining element 16 the material of the components 12 . 14 is displaced in the joint. Due to the displaced material, the first component wedged 12 and the second component 14 ,

From the 2 to 5 Go different embodiments of the joining element according to the invention 16 out. In 2 has the joining element 16 one the two components 12 . 14 passing joining element section 18 which is cone-shaped and / or ogival. In other words, forms the Fügelement 16 a tip which has an arched contour. In 3 has the joining element 16 a joining element head 20 , which at the joining element section 18 (see 2 ) is arranged. In other words, on the conical and / or ogival formed joining element section 18 at the broad end of a Fügelementkopf 20 , For example, a nail or a screw head attached. In other words, the joining element forms 16 For example, a nail without shank.

In 4 has the mechanical joining element 16 a joining element shaft 22 and a joining element tip 24 on, which at a first end of the joining element shaft 22 opposite a second end of the joining element shaft 22 is arranged. The joining element tip 24 is cone-shaped and / or ogival trained. In other words, the joining element forms 16 for example, a nail without a head.

In 5 has the joining element 16 a joining element shaft 22 on, at its first end a joining element head 20 is arranged, wherein a relation to the first end arranged second end of the joining element 16 plan is formed. Thus, the joining element 16 out 5 compared to 4 no joining element tip 24 on, but a joining element head 20 ,

In the 1 . 4 and 5 has the joining element shaft 22 also on its surface 26 a profile on. The joining element shaft 22 has, for example, on its surface grooves and / or depressions and / or a thread. This creates a stronger positive connection in addition to the traction. Straight 1 It can be seen that by the trained profile on the surface 26 of the joining element shaft 22 the holding forces are increased in Kopfzugrichtung. In it, the profile forms a barb-like profile, what the joining element 16 stronger in the components 12 . 14 anchored.

Out 6 goes a joint connection 10 of at least two components 12 . 14 as they are already in 1 described. There are two joining elements 16 obliquely, arranged in opposite directions in series.

From the 7 to 9 goes a joint connection 10 of at least two components 12 . 14 in which the joining elements 16 obliquely toward or away from each other in series in the components 12 . 14 are arranged. In the 7 and 8th becomes a joining element 16 as it already is in 4 was described. It is also possible to have several tiles 16 to unite to a joining element by a joining element head (in 7 not shown) is provided with a plurality of obliquely projecting Fügelementspitzen. In 9 while it becomes a joining element 16 used in the form of a nail.

In 10 is a schematic representation of the joint connection 10 shown in a plan view. In this case, for producing a joint connection 10 the joining elements 16 be arranged in series or in another arrangement, for example a triangular arrangement.

From the 6 to 10 it can be seen that the joining elements 16 from only one side, namely that of the first component 12 , in the components 12 . 14 were introduced. Thus, a one-sided accessibility is guaranteed. However, if there is a low component stiffness, then a two-sided accessibility can be provided.

Overall, therefore, a method and a Hilfsfügeelement to create a joint connection out. In conventional stud setting the holding mechanism is mainly ensured by traction. In a method in which the joining element is driven obliquely into the components, in addition to the frictional connection, a strong positive locking and thus a significantly higher load capacity. Thus, even at slow Eintreibgeschwindigkeiten (set speeds), a lower load capacity, which results from a slower Eintreibgeschwindigkeit be compensated. The joining element may have different embodiments, for example in the form of a nail with or without a nail shank, with or without a nail tip and with or without a nail head. This process of obliquely introducing a joining element into components is very stable, since no breakdown occurs and thus the parameterization or the test can be greatly simplified during the process. The joining elements can also be made thinner, since the new method, a lower force is applied to the component during driving. The load on the component is not in the direction of the component normal, but obliquely, since holding forces come about by the inclination, ie the positive connection. In this case, the method can be implemented with one-sided and / or two-sided accessibility.

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• DE 102006002238 A1 [0002]

Claims (5)

Method for producing a joint connection ( 10 ) of at least two components ( 12 . 14 ), in particular sheet metal components, of a motor vehicle, in which the two components ( 12 . 14 ) via at least one mechanical joining element ( 16 ), characterized in that the joining element ( 16 ) at a predetermined angle to a surface normal of the components ( 12 . 14 ) is introduced into this. A method according to claim 1, characterized in that the Fügelement ( 16 ) with a joining speed between 5 meters per second and 300 meters per second or with a joining speed of less than 5 meters per second into the components ( 12 . 14 ) is introduced. A method according to claim 1 or 2, characterized in that by connecting the components, the first component ( 12 ) and the second component ( 14 ) are clamped together at the joint and / or wedged. Method according to one of claims 1 to 3, characterized in that as a joining element ( 16 ) the joining element ( 16 ) with a joining element shaft ( 22 ) and a joining element tip ( 24 ), which at a first end opposite to a second end of the joining element shaft ( 22 ) is used. Method according to one of claims 1 to 4, characterized in that as a joining element ( 16 ) the joining element ( 16 ) with one of the two components ( 12 . 14 ) passing through the joining element section ( 18 ), in particular with a at the joining element section ( 18 ) arranged joining element head ( 20 ), which is cone-shaped and / or ogival, is used.

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