DE102020209091A1 - Component group, motor vehicle, modular system for a component group and method for assembling a component group - Google Patents

Abstract

The invention relates to a group of components (20), comprising a first component (30) with a first connection point (31) and a second component (40) with a second connection point (41), the first component (30) and the second component (40 ) can be connected to one another via the first connection point (31) and the second connection point (41). The component group (20) according to the invention is characterized in that the component group (20) further comprises a pin (10) which can be inserted into an opening (32) of the first connection point (31) in such a way that it is connected to a first axial partial area ( 10') is held in the opening (32) and protrudes with a second axial partial area (10") out of the opening (32) and that the second connection point (41) has a bead, notch or groove (42) which is designed in this way is that the second axial portion (10") of the pin (10) when connecting the first component (30) to the second component (40) in the direction of an increasing depth of the bead, notch or groove (42) one for the second component (40) undergoes characteristic bending process. The invention also relates to a motor vehicle, a modular system for a component group and a method for assembling a component group

Description

The invention relates to a component group according to the preamble of claim 1, a corresponding motor vehicle, a modular system for a component group according to the preamble of claim 8 and a method for assembling a component group according to the preamble of claim 10.

The so-called poka-yoke principle, which describes technical precautions or devices for direct fault detection and prevention, is known in the prior art in particular for the assembly of multi-part component groups. With poka-yoke, comparatively simple technical aids are usually used to ensure that mistakes in the production process do not lead to defects in the end product. The technical aids used are usually inexpensive and can be introduced into established manufacturing processes without any particular effort. When assembling multi-part assemblies, connection points are provided on the respective individual components, for example, which, according to the key-lock principle, prevent a connection to the wrong component and only allow the connection to the correct component.

From the EP 2 916 045 A1 and the DE 10 2004 030 006 A1 each transmission with at least one parking pawl are known.

the DE 102017001619 A1 discloses a transmission, in particular for a motor vehicle, with at least one parking pawl, which comprises a lever arm, which has a locking tooth for providing a locking function, and a fastening receptacle. The fastening receptacle has a bolt eye and a material extension, which extends away from the bolt eye perpendicular to a main extension direction of the lever arm and perpendicular to an axis of rotation of the bolt eye. For its part, the transmission has a transmission part which at least partially surrounds the fastening receptacle on a side of the bolt eye that faces away from the material extension, with a minimum distance between the transmission part and the axis of rotation of the bolt eye being less than a maximum distance between the material extension and the axis of rotation of the bolt eye. In this way it can be avoided that the parking pawl is assembled incorrectly; in particular, it is not possible to assemble the parking pawl with an incorrect alignment.

However, the known assembly methods or poka-yoke methods when assembling multi-part groups of components have the disadvantage that all of the components to be connected to one another must each have a corresponding connection point that interacts with the connection point of another component according to the key-lock principle. As a result, at least one additional manufacturing step is necessary in each case in the production of these components in order to produce the key-lock contours required in each case. In addition, the variety of parts increases, which in turn makes production more expensive and requires comparatively more complex warehousing.

It is an object of the invention to propose an improved assembly.

According to the invention, this object is achieved by the component group according to claim 1 . Advantageous refinements and developments of the invention emerge from the dependent claims.

The invention relates to a component group comprising a first component with a first connection point and a second component with a second connection point, the first component and the second component being connectable to one another via the first connection point and the second connection point. The assembly of components according to the invention is characterized in that the assembly of components further comprises a pin which can be inserted into an opening of the first connection point in such a way that it is held in the opening with a first axial partial area and projects out of the opening with a second axial partial area and that the second connection point has a bead, notch or groove, which is designed in such a way that when the first component is connected to the second component, the second axial partial area of the pin has a characteristic characteristic for the second component in the direction of an increasing depth of the bead, notch or groove Bending process learns.

According to the invention, a component group is therefore provided which comprises two components, namely the first component and the second component. The first component is preferably always configured identically for different assemblies, while the second component can be configured differently for different assemblies, in particular can be configured differently with regard to its mechanical strength. The component group can preferably include a large number of further components. The first and the second component can be connected to one another, it being possible for the first and the second component to be connected to one another in a detachable manner, so that they can be separated from one another again, for example for maintenance or repair purposes. This is particularly advantageous when it comes to a comparatively complex component group, such as a transmission, in particular a driver tool transmission. The first component is connected to the second component via the first connection point and the second connection point. Each additional component of the assembly also has a corresponding connection point for connection to at least one component of the assembly. The first connection point, the second connection point and, if applicable, each additional connection point are advantageously designed geometrically in such a way that there are surfaces that abut one another, if necessary with grooves, catches or edges and corresponding counter-shapes, which can engage in one another. Preferably, the first, the second and possibly each additional connection point also include, for example, bores, in particular threaded bores, so that the first, the second and optionally each additional component can be connected by means of screws. The first connection point has at least one opening and the second connection point has at least one bead, notch or groove, the bead, notch or groove being in the connected state of the first component with the second component of the opening with an edge region of the bead, notch or opposite the groove. The opening of the first connection point of the first component is preferably always identically configured and arranged identically for different component groups, while the bead, notch or groove of the second connection point of the second component is advantageously configured differently for different component groups, in particular with regard to the orientation of the bead, notch or Nut. The bead, notch or groove is characteristic of the differences in different second components, in particular with regard to their orientation. Different second components, which differ, for example, with regard to their mechanical load-bearing capacity, but are otherwise constructed in the same way, can thus be distinguished on the basis of the orientation of their bead, notch or groove. The term “alignment” is understood to mean the direction in which the bead, notch or groove runs from a starting point of the bead, notch or groove that is the same in all cases, and the further shape of the bead, notch or groove. You can imagine the bead, notch or groove like a clock hand, which points in a certain direction from a center, i.e. has a certain "orientation". This direction or orientation is characteristic and thus a distinguishing feature for different second components. The term “different assemblies” is understood to mean that two or more assemblies differ in the way the second component is designed. The first component, on the other hand, is the same for all assemblies, ie identical.

The subassembly also includes a pin which can be partially inserted into the opening of the first connection point. The opening is advantageously designed as a bore. The pin is designed in particular as a square pin. The diameter of the opening, compared to the edge length of the pin, is such that the pin can be pressed into the opening, causing a certain deformation at its longitudinal edges. The opening is preferably so deep that the pin is held in the opening with a first axial section and protrudes out of the opening with a second axial section, the first and the second axial section of the pin being in particular the same size or particularly preferably a length ratio of 6:4, 7:3, or 8:2, or any aspect ratio between the 5:5 and 8:2 aspect ratios. Now, when the first and second components are joined together, the axial end of the pin, which protrudes from the opening, comes into contact with the bead, notch or groove of the second connection point, to be precise with the edge area of the bead, notch or groove. Since the bead, notch or groove does not yet have the maximum depth in its edge region, but only has the maximum depth in its center, whereby the center does not have to be punctiform but can also extend longitudinally, the pin experiences the second connection point to the first connection point a bending moment in the direction of an increasing depth or in the direction of the maximum depth of the bead, notch or groove. When the first component is connected to the second component, this bending moment causes the pin to undergo a bending process that is characteristic of the respective specific second component. In particular, the bending process leads to non-elastic bending of the pin, so that the pin is permanently deformed. After the connection, the second axial partial area of the pin is bent at an angle of approximately 90° relative to the first axial partial area of the pin, ie it rests on the surface of the first connection point, starting from the opening.

This results in the advantage that, after the component group has been connected for the first time, the pin has a bend or deformation which is characteristic of that second component which was connected to the first component. This characteristic bend prevents, for example, in the event of maintenance or repairs, when the second component is detached from the first component and possibly replaced, that a different or incorrect second component is then connected to the first component, since the second component is no longer connected in this case can be placed flush against the first component to create the connection. The reason for this is that the pin has received a characteristic bend due to the initial connection of the first component with the original second component in accordance with the for the second construction part characteristic bead, notch or groove. If a different, i.e. incorrect, second component is to be connected to the first component, the pin cannot lie in the bead, notch or groove of the different component due to its deformation, i.e. bending, so that the first component and the second component cannot be placed flat against each other. This prevents the first component from being connected to the wrong second component.

At the same time, it is not necessary to produce and stockpile a large number of different first components, since the characteristic property of the first component or the first connection point is only produced by the second component when it is connected for the first time. This represents an advantage over the known poka-yoke method, which not only requires a large number of different second components, but also different first components, which each receive fixed features at their connection points during manufacture, which create a connection exclusively between the correct components allow.

According to a preferred embodiment of the invention, it is provided that the pin has a circumferential groove which separates the first axial section from the second axial section and is designed with regard to the groove and its material in such a way that the pin in a further bending process following the bending process breaks at the groove. The groove represents a desired bending point for the bending process, since it has less strength than the surrounding sub-areas of the pin due to its comparatively lower material thickness. The material of the pin is preferably a metallic material, such as aluminum or steel. These metals have, for example, a sufficiently high deformability in connection with a certain brittleness, so that it can be ensured by a suitable depth of the groove that the pin breaks after the first bending process in a further bending process. It can thus also be ensured that the characteristic bending of the pin, which was produced by the first bending process, is not changed or manipulated during a maintenance or repair process. For example, this can prevent maintenance or repair personnel from changing the bend of the pin in order to connect an incorrect second component to the first component. The connection of the first component with the second component is still possible, but first the pin at the groove must be intentionally broken off, which is the case when attempting a further bending process. If, during operation of the assembly, a fault occurs later in the assembly due to the maintenance or repair personnel making an impermissible connection between the first component and an incorrect second component, the original manufacturer can prove, with reference to the broken pin, that the fault in the assembly was not due to faulty components or an originally faulty assembly, but due to incorrect maintenance or repairs.

According to a further preferred embodiment of the invention, it is provided that the pin is held in the opening in a non-detachable manner. This results in the advantage that it is not possible to replace the pin that is characteristically bent after the first connection of the first component to the second component with another pin that is not yet bent. In this way, when the second component is replaced, the connection of the first component to an incorrect second component can be reliably prevented or at least be subsequently recognized by a broken pin.

According to a further preferred embodiment of the invention, it is provided that the bead, notch or groove is designed in such a way that the second axial partial area of the pin is completely accommodated in the bead, notch or groove after the bending process. This means that after the first component has been connected to the second component, the second axial section of the pin is completely in the bead, notch or groove, with the bead, notch or groove essentially having the shape of the second axial section of the pin corresponds, in particular is not significantly longer, wider or deeper. Thus, the first connection surface can be brought into contact with the second connection surface in a planar manner.

According to a further preferred embodiment of the invention, it is provided that the first component and the second component are detachably connected to one another via a screw connection. A comparatively inexpensive but nevertheless reliable and robust connection of the first component to the second component is thus made possible. In addition, the connection can be released again for repair and maintenance purposes. The screw connection is particularly preferably designed as a flange connection.

According to a further preferred embodiment of the invention, it is provided that the first component is a transmission housing of a vehicle transmission and that the second component is a parking lock housing of a vehicle parking lock.

The invention also relates to a motor vehicle comprising a component group according to the invention. This results in the already in connection with the assembly of components according to the invention described advantages for the motor vehicle according to the invention.

The invention also relates to a modular system for a component group, comprising a large number of identical first components with first connection points and a large number of different second components with second connection points, with a first component and a second component each being connected via their first connection point and their second connection point are connectable to each other. The modular system according to the invention is characterized in that the modular system also includes a large number of identical pins, which can each be inserted into an opening of a first connection point in such a way that they are held in the opening with a first axial partial area and with a second axial partial area protrude out of the opening and that different second components differ at least by the second connection points in that the second connection points have different beads, notches or grooves, which are each designed in such a way that the second axial partial area of the pin extends in the direction of an increasing depth of the bead, Notch or groove undergoes a bending process characteristic of the second component when connecting the first component to the second component.

According to a further preferred embodiment of the invention, it is provided that the component group is a component group according to the invention. The modular system according to the invention thus enables the assembly of components according to the invention to be produced and thus leads to the advantages already described.

• - Auswählen eines ersten Bauteils mit einer ersten Verbindungsstelle aus einer Vielzahl von identischen ersten Bauteilen mit ersten Verbindungsstellen,
• - Auswählen eines zweiten Bauteils mit einer zweiten Verbindungsstelle aus einer Vielzahl von unterschiedlichen zweiten Bauteilen mit zweiten Verbindungsstellen,
• - Auswählen eines Stifts aus einer Vielzahl von identischen Stiften,
• - Einführen des ausgewählten Stifts in eine Öffnung der ersten Verbindungsstelle des ausgewählten ersten Bauteils derart, dass er mit einem ersten axialen Teilbereich in der Öffnung gehalten ist und mit einem zweiten axialen Teilbereich aus der Öffnung herausragt und
• - Verbinden des ersten Bauteils mit dem zweiten Bauteil derart, dass der zweite axiale Teilbereich des Stifts in Richtung einer zunehmenden Tiefe einer Sicke, Kerbe oder Nut beim Verbinden des ersten Bauteils mit dem zweiten Bauteil einen für das zweite Bauteil charakteristischen Biegevorgang erfährt, wobei unterschiedliche zweite Bauteile sich zumindest durch die zweiten Verbindungsstellen dahingehend unterscheiden, dass die zweiten Verbindungsstellen unterschiedliche Sicken, Kerben oder Nuten aufweisen.

Finally, the invention also relates to a method for assembling a component group, comprising the steps

• - selecting a first component with a first connection point from a large number of identical first components with first connection points,
• - selecting a second component with a second connection point from a large number of different second components with second connection points,
• - select a stylus from a variety of identical styluses,
• - inserting the selected pin into an opening of the first connection point of the selected first component in such a way that it is held in the opening with a first axial portion and projects out of the opening with a second axial portion and
• - Connecting the first component to the second component in such a way that the second axial portion of the pin undergoes a bending process that is characteristic of the second component in the direction of an increasing depth of a bead, notch or groove when the first component is connected to the second component, with different second Components differ at least by the second connection points in that the second connection points have different beads, notches or grooves.

This also leads to the advantages already described in connection with the assembly according to the invention for the method according to the invention.

The invention is explained below by way of example using the embodiments shown in the figures.

• 1 beispielhaft und schematisch eine mögliche Ausbildungsform eines Stifts für eine erfindungsgemäße Bauteilgruppe,
• 2 den Stift der 1 in einer Öffnung einer ersten Verbindungsstelle eines ersten Bauteils,
• 3 den in der Öffnung angeordneten Stift sowie eine zweite Verbindungsstelle eines zweiten Bauteils jeweils im Querschnitt,
• 4 das erste Bauteil mit dem Stift bei einer weiteren Annäherung des zweiten Bauteils an das erste Bauteil,
• 5 das erste Bauteil mit dem Stift bei einer noch weitergehenden Annäherung des zweiten Bauteils an das erste Bauteil,
• 6 die Bauteilgruppe in einem Zustand, in dem das erste Bauteil und das zweite Bauteil aneinander anliegen und
• 7 eine Draufsicht auf zwei unterschiedliche Bauteilgruppen.

Show it:

• 1 exemplary and schematic of a possible embodiment of a pin for a component group according to the invention,
• 2 the pen of 1 in an opening of a first connection point of a first component,
• 3 the pin arranged in the opening and a second connection point of a second component, each in cross section,
• 4 the first component with the pin when the second component approaches the first component further,
• 5 the first component with the pin when the second component approaches the first component even further,
• 6 the component group in a state in which the first component and the second component abut each other and
• 7 a top view of two different groups of components.

Identical objects, functional units and comparable components are denoted by the same reference symbols across the figures. These objects, functional units and comparable components are designed to be identical in terms of their technical features, unless the description explicitly or implicitly states otherwise.

1 shows an example and a schematic of a possible embodiment of a pin 10 for a component group 20 according to the invention. The pin is designed as a square pin 10, for example, and consists of a steel alloy. His first axial portion 10' is separated from its second axial portion 10" by a circumferential groove 11 and ends in a tip 12.

2 shows the pin 10 of FIG 1 in an opening 32 of a first connection point 31 of a first component 30. The opening 32 is designed as a bore 32, for example. In 2a a perspective view is shown in which only the second axial portion 10'' of the pin 10 can be seen, which protrudes from the opening 32. In 2 B the pin 10 and the first connection point 31 can be seen in cross section. It can be seen here that the pin 10 is arranged completely in the opening 32 up to the groove 11, ie with its first axial partial area 10'. According to the example, the pin 10 is arranged in the opening 32 so that it cannot be detached by being pressed in.

3 shows the pin 10 arranged in the opening 32 and a second connection point 41 of a second component 40, each in cross section. In the representation of 3 if the second component 40 is still at a distance from the first component 30, the first component 30 is, however, approached in order to establish a connection between the first component and the second component. As can be seen, the second component 40 has a groove 42 in its connection point 41 . The first component 30 is positioned opposite the second component 40 for connecting the two components 30, 40 in such a way that the tip 12 of the pin 10 comes into contact with an edge region of the groove 42 when the first component 30 approaches the second component 40 further comes. The first component 30, the second component 40 and the pin 10 represent the component group 20 according to the example.

4 shows the first component 30 with the pin 10 as the second component 40 approaches the first component 30 further slot 42

In 5 If the second component 40 approaches the first component 30 even further, so that the tip 12 of the pin 10 has come into contact with the edge area of the groove 42 and a bending process has already taken place, in which the second axial partial area 10" of the pin 10 of of the groove 11 is bent in the direction of an increasing depth of the groove 42.

6 shows the component group 20 in a state in which the first component 30 and the second component 40 are in contact and, for example, by means of a (in 6 not shown) flange connection are detachably connected to each other. As can be seen, the second axial portion 10" of the pin 10 is fully received in the groove 42. The deflection that the pin 10 has undergone through the groove 42 is characteristic of the second component 30 and represents a permanent deformation, is therefore not elastic Furthermore, due to the groove 11 and the material of the pin 10, the pin 10 would break at the groove 11 if the pin 10 were subjected to a further bending process.

7 shows a plan view of two different groups of components 20, which differ only in the embodiment of the second component 40. The first component 30, on the other hand, is identical for both groups of components 20. To identify the differences between the second component 40 of 7a and the second component 40 of 7b the grooves 42 point in different directions, starting from the edge region with which the tip 12 of the pin first comes into contact when the two components 30, 40 are connected. In the representation of 7a the groove 42 has, for example, to the top left. Accordingly, when the two components 30, 40 are connected, the pin 10 undergoes a corresponding, characteristic bending process to the top left. In the representation of 7b the groove 42 has, for example, to the top right. Accordingly, when the two components 30, 40 are connected, the pin 10 undergoes a corresponding, characteristic bending process to the top right.

Reference List

10

pen

10'

first axial section

10''

second axial section

11

groove

12

top

20

component group

30

first component

31

first connection point

32

opening, bore

40

second component

41

second connection point

42

groove

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• EP 2916045 A1 [0003]
• DE 102004030006 A1 [0003]
• DE 102017001619 A1 [0004]

Claims (10)

Component group (20), comprising a first component (30) with a first connection point (31) and a second component (40) with a second connection point (41), wherein the first component (30) and the second component (40) via the first connection point (31) and the second connection point (41) can be connected to one another, characterized in that the component group (20) further comprises a pin (10) which can be inserted into an opening (32) of the first connection point (31) in such a way that that it is held in the opening (32) with a first axial partial area (10') and projects out of the opening (32) with a second axial partial area (10") and that the second connection point (41) is a bead, notch or groove (42) which is designed in such a way that the second axial partial area (10") of the pin (10) when connecting the first component (30) to the second component (40) in the direction of an increasing depth of the bead, notch or groove (42) one for the second build part (40) undergoes characteristic bending process. Component group (20) according to claim 1 , characterized in that the pin (10) has a circumferential groove (11) which separates the first axial partial area (10') from the second axial partial area (10") and is designed with regard to the groove (11) and its material such that that the pin (10) breaks at the groove (11) during a further bending process following the bending process. Component group (20) according to at least one of Claims 1 and 2 , characterized in that the pin (11) is non-detachably held in the opening (32). Component group (20) according to at least one of Claims 1 until 3 , characterized in that the bead, notch or groove (42) is formed such that the second axial portion (10") of the pin (10) is completely accommodated in the bead, notch or groove (42) after the bending process. Component group (20) according to at least one of Claims 1 until 4 , characterized in that the first component (30) and the second component (4) are detachably connected to one another via a screw connection. Component group (20) according to at least one of Claims 1 until 5 , characterized in that the first component (30) is a transmission housing of a vehicle transmission and that the second component (40) is a parking lock housing of a vehicle parking lock. Motor vehicle, comprising a component group (20) according to at least one of Claims 1 until 6 . Modular system for a component group (20), comprising a multiplicity of identical first components (30) with first connection points (31) and a multiplicity of second different components (40) with second connection points (41), with a first component (30) and a second component (40) can be connected to one another via their first connection point (31) and their second connection point (41), characterized in that the modular system further comprises a large number of identical pins (10), which each fit into an opening (32) of a first connection point (31) can be inserted in such a way that a first axial partial area (10') is held in the opening (32) and a second axial partial area (10") protrudes from the opening (32) and that different second components (40) differ at least by the second connection points (41) in that the second connection points (41) have different beads, notches or Having grooves (42), each of which is designed in such a way that the second axial partial area (10") of the pin (10) extends in the direction of an increasing depth of the bead, notch or groove (42) when the first component (30) is connected to the second component (40) undergoes a bending process that is characteristic of the second component (40). modular system claim 8 , characterized in that the component group (20) is a component group (20) according to at least one of Claims 1 until 6 is. Method for assembling a component group (20), comprising the steps - selecting a first component (30) with a first connection point (31) from a plurality of identical first components (30) with first connection points (30), - selecting a second component ( 40) with a second connection point (41) from a multiplicity of different second components (40) with second connection points (41), characterized by the steps - selecting a pin (10) from a multiplicity of identical pins (10), - inserting the selected pin (10) into an opening (32) of the first connection point (31) of the selected first component (30) in such a way that it is held in the opening (32) with a first axial portion (10') and with a second axial Portion (10") protrudes from the opening (32) and - connecting the first component (30) to the second component (4) in such a way that the second axial portion (10") of the pin (10) in the direction of a zune decreasing depth of a bead, notch or groove (42). Connecting the first component (30) to the second component (40) undergoes a bending process that is characteristic of the second component (40), with different second components (40) differing at least in terms of the second connection points (41) in that the second connection points ( 41) have different beads, notches or grooves (42).

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