Measuring Probe Formed Housing Connection
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Solution Overview
Problem
Existing measuring probes face manufacturing complexity and space constraints due to screw connections, and adhesive connections are prone to degradation over time, while press-fit solutions require precise tolerances and increased manufacturing effort.
Innovation Solution
A measuring probe design featuring a positive and non-positive connection between housing parts formed by local plastic material deformation, eliminating the need for screws or rivets and incorporating a sealant to prevent media ingress, achieved through a form-fitting connection with groove-contour pairs and an annular groove for sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections are used to connect housing parts, then a secure mechanical connection is achieved, but manufacturing complexity increases and additional space is required
Solution Approach 1:
The patent merges the first and second housing parts into a single integrated component through forming, eliminating the need for separate connection elements. The second housing part is formed directly from a blank in one piece with the first housing part, removing screws, rivets, or other connecting elements entirely.
Solution Approach 2:
The forming process serves multiple functions simultaneously: it creates the housing structure, forms the connection between housing parts, and integrates sealing elements. The single forming operation accomplishes what previously required multiple separate manufacturing and assembly steps.
2Strength
If screw connections are used to connect housing parts, then a secure mechanical connection is achieved, but the probe size increases
Solution Approach 1:
The housing parts are merged into a single integrated component through the forming process, eliminating the need for additional space required by screws, rivets, or other connecting elements. The connection is created within the existing housing geometry without adding external protrusions.
3Ease of manufacture
If adhesive bonding is used to connect housing parts, then assembly is simplified, but connection reliability deteriorates over time
Solution Approach 1:
The patent replaces chemical bonding (adhesive) with a mechanical forming process. The second housing part is formed directly into the first housing part through plastic deformation, creating a permanent mechanical connection that does not deteriorate over time like adhesive bonds.
4Strength
If press fit is used to connect housing parts, then connection is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The housing parts are merged through a forming process that creates an integrated structure, eliminating the need for precise interference fits. The forming process accommodates normal manufacturing variations while maintaining connection integrity.
5Strength
If screw connections are used to connect housing parts, then a secure connection is achieved, but the number of components and assembly steps increases
Solution Approach 1:
The forming process serves multiple functions in a single operation: creating the housing structure, forming the connection between parts, and integrating sealing elements. This eliminates multiple separate manufacturing and assembly steps, significantly improving productivity.
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 reduces component count, simplifies manufacturing, and provides a durable, compact probe that effectively seals against media while compensating for external forces, without the need for additional connecting elements.
Implementation Method 1
the forming takes place by a local plastic material deformation of at least the second housing part in the region of the first groove
Data Source
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AI summary
The invention relates to a measuring probe (T) comprising a first housing part (1) for gripping a shaft (3) extending in a longitudinal direction (x) and a second housing part (2). The invention is characterized in that the measuring probe (T) has at least one first positive-locking and force-locking connection between the first housing part (1) and the second housing part (2), wherein the first positive-locking and force-locking connection is formed by a first groove-contour pair (10) and the first positive-locking and force-locking connection is produced by forming the second housing part (2).