Flexible Holding Device for Test Mandrel Misalignment
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Solution Overview
Problem
Existing holding devices for test mandrels face challenges in simplifying the insertion of test mandrels into bores, particularly when there are misalignments, leading to potential collisions and damage to the mandrel, specimen, or device.
Innovation Solution
A holding device with a receiving device that allows for translational and rotational movement along multiple axes, enabling compensation for radial and angular offsets, and featuring a reset mechanism to ensure accurate alignment and prevent damage during insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid fixture is used to hold the test mandrel, then the mandrel is firmly secured, but misalignment between the mandrel and bore leads to collision and damage
Solution Approach 1:
The holding device incorporates a dynamically adjustable mechanism that allows the test mandrel to be positioned and angled relative to the bore. The device includes adjustment means for modifying the position and orientation of the mandrel, enabling real-time adaptation to alignment requirements and preventing collision damage while maintaining firm securing.
2Manufacturing precision
If the mandrel is held fixed in position, then alignment precision is maintained, but any deviation causes insertion problems and potential damage
Solution Approach 1:
The device transforms the fixed positioning concept into a dynamically adjustable system. The holding device includes mechanisms for modifying both the position and angular orientation of the test mandrel, allowing the system to adapt to various alignment conditions while maintaining precise control, thereby improving insertion reliability without sacrificing alignment precision.
3Device complexity
If a simple holding mechanism is used, then the device structure is simple, but it cannot compensate for misalignment between mandrel and bore
Solution Approach 1:
The holding device incorporates adjustable mechanisms that enable modification of the test mandrel's position and orientation. These dynamic adjustment capabilities allow the device to compensate for misalignment between the mandrel and bore, providing adaptability while maintaining a relatively simple overall structure through modular design elements.
Data Source
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AI summary
The invention relates to a holding device (1) for holding a test mandrel (50) for testing bores, wherein the holding device (1) comprises: a housing (2) which defines an interior housing space (3), and a receiving device (4) with a receiving chamber (5) extending along a central axis (M) of the receiving device (4) and opening outwards in an axial direction (A) of the holding device (1), in which a receiving section (51) of the test mandrel (50) can be received opposite to the axial direction (A), wherein the receiving device (4) is partially received in the interior housing space (3) and mounted on the housing (2) in such a way that the receiving device (4) is flexibly movable relative to the housing (2) along the axial direction (A) and is translationally limited in a radial direction (R) extending perpendicular to the axial direction (A) away from the central axis (M).wherein the receiving device (4) is pivotably movable relative to the housing (2) about a pivot axis extending transversely to the axial direction (A) such that the central axis (M) of the receiving device (4) can be adjusted relative to the housing (2).