Press-In Functional Component Assembly With Defined End Position
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Solution Overview
Problem
Existing methods for securing functional components to holding components, such as press-in bolts and positive connections, lack reproducibility and accuracy in achieving a precise fixation, leading to unsatisfactory repeatability and potential damage or failure during the connection process.
Innovation Solution
A composite component design where a connecting element of the functional component is pressed into a recess of the holding component, with a contact surface on the functional component ensuring a defined end position and a deformed state of the connecting element expanding to securely anchor into the holding component, allowing for precise and reproducible fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a press-in bolt with a forming area is used to secure a functional component, then the connection can be established, but the end position cannot be specified in an easily reproducible manner, leading to unsatisfactory accuracy and repeatability
Solution Approach 1:
The recess is pre-formed with a defined support surface at a specific depth before the pressing operation. This preliminary preparation ensures that when the connecting element is pressed in, the functional component automatically reaches the correct end position when its contact surface engages the support surface, eliminating the need for complex positioning mechanisms during the pressing operation.
Solution Approach 2:
The support surface acts as an intermediary element between the connecting element and the functional component. It provides a defined engagement point that mediates the pressing operation, ensuring reproducible end position without requiring complex control systems or measurement devices.
2Strength
If material is plastically displaced from a rivet head into an undercut to produce a positive connection, then the connection strength is improved, but the process complexity and potential for damage increase
Solution Approach 1:
The recess with undercut geometry is pre-formed in the holding component before the pressing operation. This preliminary preparation allows the connecting element to be simply pressed into place without requiring additional operations for material displacement or forming, simplifying the manufacturing process while maintaining connection strength through the predefined geometric interlock.
Solution Approach 2:
The complex material displacement operation is extracted from the pressing process. Instead of plastically deforming material during connection, the solution uses a pre-formed recess geometry that achieves positive connection through the shape of the connecting element and recess配合, eliminating the need for complex forming operations.
3Manufacturing precision
If a connecting element is pressed into a recess without a defined end position, then the assembly process is simple, but the fixation precision and repeatability are poor
Solution Approach 1:
The recess is pre-formed with a support surface at a precisely defined depth and position. This preliminary preparation creates a self-limiting pressing operation where the functional component automatically stops at the correct position when its contact surface engages the support surface, achieving high fixation precision without complex assembly controls.
Solution Approach 2:
The support surface enables the assembly process to self-regulate. When the functional component is pressed onto the connecting element, the contact surface automatically engages the support surface at the correct position, providing self-positioning and self-limiting functionality that ensures reproducible fixation without requiring external measurement or control systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables a secure, reproducible, and precise fixation of the functional component to the holding component, ensuring accurate orientation and preventing damage, while allowing for flexible implementation and various functional modules, including welding and thread-based connections.
Implementation Method 1
The connecting element (22) is designed to be converted into a deformed state by applying a force acting in the press-in direction (18) to the base body (24). In the deformed state of the connecting element (22), the connecting element (22) is expanded in a free end region (32).
Implementation Method 2
The base body (24) of the functional component (10) has a contact surface (36) surrounding the connecting element (22). The contact surface (36) rests on a support surface (38) of the holding component (12) in a coupling state of the functional component (10).
Data Source
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AI summary
The invention relates to a functional component (10) which is designed to be secured to a holding component (12) by pressing a connection element (22) into a depression (14) of the holding component (12). The connection element (22) protrudes from the main part (24) of the functional component (10) in a press-in direction when the connection element is in the non-deformed state and is designed to be deformed by applying a force (28) onto the main part (24) such that the connection element (22) is expanded in an end region (32), and the end region (32) is introduced into a wall (16) of the depression (14). The main part (24) has a contact surface (36) which encircles the connection element (22) and which lies against a contact surface (38) of the holding component (12) when the functional component (10) is coupled. A functional module (48) of the functional component (10) is provided by a sub-region of the main part (24) facing away from the contact surface (36). The invention additionally relates to a component assembly (20) and to a method for securing a functional component (10).