Method for producing a connecting element and connecting element
阅读说明:本技术 用于制造连接元件的方法以及连接元件 (Method for producing a connecting element and connecting element ) 是由 F·纳赫巴尔 O·邦科夫斯基 F·多贝尔霍夫 于 2018-04-10 设计创作,主要内容包括:本发明涉及一种用于制造连接元件(1、30)的方法,所述连接元件尤其是用于铰接地连接布置在底盘中的构件,其中所述连接元件(1、30)由成型元件(6、31)构成,所述成型元件具有用于容纳铰链构件(5)的铰链区段(2)、中间区段(4)以及连接区段(3),其中,所述成型元件(6、31)由至少一个第一成型区段(7、32)和至少一个第二成型区段(8、33)所构成的组件形成,该组件借助于至少一个固定元件(9、10)通过形状配合连接保持在其位置中;铰链构件(5)被装入到所述铰链区段(2)中;并且所述成型元件(6、31)和所述铰链构件(5)局部地利用塑料注塑包封。(The invention relates to a method for producing a connecting element (1, 30), in particular for the articulated connection of components arranged in a chassis, wherein the connecting element (1, 30) is formed by a profiled element (6, 31) having a hinge section (2) for receiving a hinge component (5), an intermediate section (4) and a connecting section (3), wherein the profiled element (6, 31) is formed by an assembly of at least one first profiled section (7, 32) and at least one second profiled section (8, 33), which assembly is held in its position by means of at least one fixing element (9, 10) by a form-fitting connection; a hinge member (5) is inserted into the hinge section (2); and the molding element (6, 31) and the hinge component (5) are partially encapsulated with plastic by injection molding.)
1. A method for producing a connecting element (1, 30), in particular for the articulated connection of components arranged in a chassis, wherein the connecting element (1, 30) is formed by a profiled element (6, 31) having a hinge section (2) for receiving a hinge component (5), an intermediate section (4) and a connecting section (3), characterized in that the profiled element (6, 31) is formed by an assembly of at least one first profiled section (7, 32) and at least one second profiled section (8, 33), which assembly is held in its position by means of at least one fixing element (9, 10) by a form-fitting connection; a hinge member (5) is inserted into the hinge section (2); and the molding element (6, 31) and the hinge component (5) are partially encapsulated with plastic by injection molding.
2. Method according to claim 1, characterized in that an insert (16) is inserted between the first and second molding sections (7, 32, 8, 33) in the region of the at least one first and second molding section (7, 32; 8, 33) which defines the intermediate section (4) and the connecting section (3) of the molding element (6, 31) before the injection molding.
3. Method according to claim 1 or 2, characterized in that the at least one first (7, 32) and at least one second (8, 33) moulding section are made of metal or of a plastic material different from the plastic material used for the injection moulding.
4. Method according to any of the preceding claims, characterized in that the profiled element (6, 31) is injection-moulded with a fibre-reinforced plastic.
5. Method according to any of the preceding claims, characterized in that the at least one first forming section (7, 32) and the at least one second forming section (8, 33) are manufactured by separate manufacturing processes.
6. Method according to any one of claims 1 to 4, characterized in that the at least one first forming section (7, 32) and the at least one second forming section (8, 33) are manufactured by die casting.
7. Method according to any one of the preceding claims, characterized in that the at least one fixing element (9, 10) is pressed onto the at least one first and at least one second forming section (7, 32, 8, 33).
8. A connecting element (1, 30), in particular for the articulated connection of components arranged in a chassis, wherein the connecting element (1, 30) comprises a profiled element (6, 31) having a hinge section (2) for receiving a hinge component (5), an intermediate section (4) and a connecting section (3), characterized in that the profiled element (6, 31) is formed by an assembly of at least one first profiled section (7, 32) and at least one second profiled section (8, 33), wherein at least one fixing element (9, 10) holds the at least one first profiled section (7, 32) and the at least one second profiled section (8, 33) in their position by a form-fitting connection; the hinge member (5) is received by the hinge section (2) of the profiled element (6, 31); and the molding element (6, 31) and the hinge component (5) accommodated in the hinge section (2) are partially surrounded by plastic applied in an injection molding process.
9. Connecting element (1, 30) according to claim 8, characterized in that the at least one first (7, 32) and at least one second (8, 33) profiled section are half-shell shaped.
10. A connecting element (1, 30) according to claim 8 or 9, characterized in that the connecting element (1, 30) is a track rod outer hinge or a transverse link.
11. Connecting element (1, 30) according to one of claims 8 to 10, characterized in that the hinge member (5) is a ball-and-socket joint (11) or a spherical pin (14).
12. Connecting element (1, 30) according to any of claims 8 to 10, characterized in that it is manufactured according to one or more of claims 2 to 7.
Technical Field
The invention relates to a method for producing a connecting element, in particular for the articulated connection of components arranged in a chassis, wherein the connecting element is formed by a profiled element having a hinge section for receiving a hinge component, a middle section and a connecting section.
The invention further relates to a connecting element, in particular for the articulated connection of components arranged in a chassis, wherein the connecting element comprises a partially cylindrical shaped element having a hinge section for receiving a hinge component, a middle section and a connecting section.
Background
Tie rods connect the rack of the steering gear to the wheel carrier of the motor vehicle in order to transmit the steering movements applied to the steering wheel to the wheels. On the end face of the tie rod, a connecting element is arranged, which serves to compensate for the spatial movement of the wheel, which is caused by the elastic movement of the wheel parallel to the steering shaft. The connecting element has a hinge section on one end thereof which accommodates a hinge member. The connecting section at the other end serves for a component on the tie rod that can be adjusted in length by means of an internal thread provided in the connecting section.
The connecting element is typically a one-piece metal member. A significant disadvantage of connecting elements made of metal is that they have a high weight, which in most cases requires additional post-treatment in the manufacturing context and furthermore corrosion protection measures. The greater weight therefore increases the proportion of the unsprung mass, which is disadvantageously reflected in the driving behavior and the consumption of the respective motor vehicle. For this reason, the connecting element is produced more in a hybrid construction, i.e. in a combination of metallic material and plastic.
DE 102008049946 a1 discloses a connecting element designed as a hinge housing for a track rod assembly of a motor vehicle. The hinge housing has a partially cylindrical body made of plastic, which has a hinge section for receiving a hinge component, an intermediate section and a connecting section. In the case of a body made of plastic, individual inserts made of steel are embedded at a distance from one another. In order to produce the body, the inserts must be positioned in the respective injection mold in advance during the injection molding process, whereby they are surrounded by plastic. The hinge section, the intermediate section and the connecting section are formed only during the injection molding of the insert.
Disclosure of Invention
Starting from the prior art described above, the object of the invention is to simplify the production process of a connecting element produced in a hybrid construction.
This object is achieved from a process-technical point of view by the preamble of claim 1 in combination with the features claimed. From the technical point of view of the device, this object is achieved by the preamble of the accompanying
According to the invention, the connecting element is produced in a method, wherein the connecting element is formed from a profiled element. The shaped element of the connecting element has a hinge section for receiving a hinge component, an intermediate section and a connecting section.
The present invention includes the following technical teachings: the molding element is formed by an assembly of at least one first molding section and at least one second molding section, which is held in its position by form fit by means of at least one fixing element; a hinge member is fitted into the hinge section; and the molding element and the hinge member are partially encapsulated with plastic by injection molding. The method according to the invention is an improvement to the hybrid construction of the chassis components. In this regard, in a first production step, a plurality of metal components are connected to one another by form-fitting, so that they form a unit. The self-stabilized unit can be handled in a simpler manner. Subsequently, the unit of metal components is inserted into a mold and partially encapsulated with plastic. The transport and insertion of the metal components combined into a unit simplifies the production steps of the injection molding, in particular, since it enables a greater degree of automation. A further simplification of the method according to the invention is achieved in that the at least one first and the at least one second forming section are constructed as identical components. Thereby enabling to reduce the manufacturing cost thereof. Furthermore, the configuration of the at least one first and at least one second forming section as identical components also simplifies the arrangement for configuring the forming elements, since they can be positioned mirror-image of one another.
In contrast, in the case of the hinge housing known from DE 102008049946 a1, the individual parts forming the hinge housing are connected to one another only by injection molding in a mold, which requires precise arrangement of the individual parts in the mold, which is time-consuming and at least increases the difficulty of automation.
The method according to the invention thus increases the accuracy of the positioning of functional components, such as hinge components in the hinge section. In spite of the fact that the profiled element is formed by a combination of at least two profiled sections, the hinge section, the intermediate section and the connecting section, in contrast to the hinge housing known from DE 102008049946 a1, are already formed, so that the advantages of a hybrid construction are retained and a low-weight and cost-effective production is achieved.
The insert can then be inserted between the first and second molding segments before injection molding in the region of the at least one first and second molding segments that delimits the intermediate and connecting segments of the molding element. This facilitates the possibility of using the connecting section of the connecting element, which may have an internal thread for the axial adjustment of the tie rod, after the injection molding.
According to one embodiment of the invention, the at least one first and the at least one second molding section can be made of metal or of a plastic material different from the plastic material used for the injection molding. Steel or aluminum is preferably used when the first and second profiled sections are made of metal. High-strength plastic is preferably used when the first and second profiled sections are produced from plastic material. The first and second profiled sections have a bent section connected to the half-shell section, which connects the half-shell section to the annular section. This mirror-symmetrical design of the two profiled sections simplifies the production thereof, since they are identical in shape. The two molding sections can be formed from two parts or can be formed in one piece. In the case of an integrally formed design, the two molded sections are connected to one another by webs after their production at their annular sections lying opposite one another.
In the case of a two-part construction, the two molding sections are connected to one another after their production by means of a positive connection at their opposing ring sections, in particular in the region of the front faces of the two molding sections and/or of the blank. In this case, a tab-like connection can be realized due to the form-fitting connection. The advantage of this is that smaller and/or simpler molds for producing the molding section can be used compared to a one-piece construction. At the same time, the web-like connection enables a force transmission and transfer when the two molded segments are assembled together, similar to the one-piece construction. Preferably, the first forming section has a first formfitting element and the second forming section has a second formfitting element. The two form-fitting elements are configured in correspondence with one another in order to be able to achieve a form-fit of the two form-fitting elements with one another. The two form-fitting elements are each designed in particular as tab-like projections at the respective ring section. Preferably, the form-fitting element is oriented transversely or perpendicularly to the respective ring segment or to the plane in which the ring segment lies. The form-fitting elements are particularly directed towards each other. For example, two form-fitting elements can form a labyrinth-like connection, wherein the flange of one form-fitting element engages in a correspondingly configured flange receptacle.
In order to achieve a high strength of the connecting element, the profiled element can be injection-molded with a fiber-reinforced plastic. Different fiber types can be used here as fibers, such as carbon fibers, glass fibers, aramid fibers, black ceramic fibers (Basalt), etc.
According to a further embodiment of the invention, the at least one first and the at least one second forming section are produced by separate production processes. Stamping or laser cutting may be a preferred manufacturing process here. The production process enables cost-effective production of a large number of first and second profiled sections. Especially when implemented as identical components.
Instead of a separate production process, the at least one first and the at least one second forming section can be produced by die casting.
According to a further embodiment of the invention, the at least one fixing element is pressed onto the at least one first and one second forming section. Due to the partially rotationally symmetrical shape of the profiled element, at least one fixing element can be displaced from the connecting section and pressed against the intermediate section in the region adjacent to the hinge section. It is also conceivable to press a further fastening element, which is arranged at the end face on the connecting section. The second fixing element can prevent the two molding segments from being pushed apart relative to one another during the introduction of the core or from being moved away from one another. Furthermore, the outer side of the fastening element arranged at the end on the connecting section can have a clamping surface for the mold.
Furthermore, a connecting element, in particular for the articulated connection of components arranged in a chassis, is claimed for achieving the object, wherein the connecting element comprises a profiled element having a hinge section for receiving a hinge component, an intermediate section and a connecting section. The profiled element is formed here by an assembly of at least one first and one second profiled section, wherein at least one fixing element holds the at least one first and one second profiled section in its position by form fit. Furthermore, the hinge component is accommodated by a hinge section of the profiled element, wherein the profiled element and the hinge component accommodated in the hinge section are partially surrounded by plastic applied in an injection molding process. .
The connecting element designed according to the invention is in particular part of a wheel suspension of a motor vehicle and is a tie rod or a transverse link.
The invention is not limited to the given combination of features of the independent claims presented in parallel or the dependent claims dependent thereon. Furthermore, there is the possibility of combining individual features with one another, which are to be derived from the claims, the following description of preferred embodiments of the invention or directly from the drawings. The reference to the figures by the claims is realized by using reference signs and should not be construed as limiting the scope of protection of the claims.
Drawings
Advantageous embodiments of the invention, which are explained below, are shown in the drawing.
Wherein:
FIG. 1 is a schematic view of a connecting element;
FIG. 2a is a schematic perspective view of a first forming section;
FIG. 2b is a schematic view of a first forming section and a second forming section;
FIG. 2c is a schematic view of the first and second forming sections with a first fixing element;
FIG. 2d is a schematic view of the first and second forming sections with a second fixing element;
fig. 2e is a schematic view of a profiled element consisting of a first and a second profiled section with a hinge member;
FIG. 2f is a schematic view of the shaped element according to FIG. 2e with a plastic sheath;
fig. 3 is a schematic view of a connecting element according to a second embodiment;
fig. 4a is a schematic perspective view of a half-blank;
FIG. 4b is a schematic view of a first forming section and a second forming section;
FIG. 4c is a schematic view of the first and second forming sections with a first securing element;
FIG. 4d is a schematic view of the first and second forming sections with a second securing element;
FIG. 4e is a schematic view of a profiled element consisting of a first profiled section and a second profiled section with a hinge member; and
fig. 4f is a schematic view of the shaped element according to fig. 4e with a plastic sheath.
Detailed Description
Fig. 1 shows a schematic illustration of a connecting element 1 designed as an outer link of a track rod. The connecting element 1 is divided into a plurality of sections, namely a
The connecting element 1 is formed by a partially cylindrical profiled
The
The profiled
The flow of the manufacturing process of the connecting element 1 is illustrated in detail in fig. 2a to 2 f.
Fig. 2a shows a schematic perspective view of a first forming section 7 designed as a half-blank 21. The first forming section 7 has a half-shell-shaped
Fig. 2b shows a schematic illustration of the first and second forming
Fig. 2c shows a schematic illustration of the first and second forming
Fig. 2d shows a schematic illustration of the first and
Fig. 2e shows a schematic view of the profiled
The diagram of fig. 3 shows a schematic view of a connecting
The connecting
Alternatively, the
Fig. 4a shows a schematic perspective view of the half-blank 35. The half-blank 35 comprises a first forming
Fig. 4c shows a schematic illustration of the first and second forming
Fig. 4d shows a schematic view of the first and second profiled
Fig. 4e shows a schematic illustration of a profiled
Fig. 4f shows a schematic representation of the profiled
For injection molding of the molded
In one development, the profiled
List of reference numerals:
1 connecting element
2 hinge section
3 connecting segment
4 middle section
5 hinge component
6 Forming element
7 first forming section
8 second forming section
9 first fixing element
10 second fixing element
11 ball and socket joint
12 casing
13 spherical shell
14 ball pin
15 Plastic sheath
16 type core
17 half-shell shaped section
18 bent over section
19 annular segment
20 mold clamping surface
21 semi-billet
22 unit
30 connecting element
31 shaped element
32 first forming section
33 second forming section
34 contact piece
35 semi-blank