Floating Machining Platform for Precision Hole Alignment
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Solution Overview
Problem
Existing machining methods for workpieces, such as grinding round holes, suffer from low precision due to incorrect positioning and tilting of the workpiece, leading to misalignment of the tool axis and deviations in machining dimensions.
Innovation Solution
A floating type machining platform with a base, holding platform, and elastic modules allowing six-axis motion (three linear and three rotational axes) to securely hold and align workpieces, enabling precise machining by compensating for tool deviations and preventing workpiece tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixture is used to hold and feed the workpiece horizontally, then the workpiece can be positioned for machining, but the workpiece may tilt due to incorrect positioning or angling, causing misalignment between the tool axis and the hole center
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a fixed rigid fixture to a floating dynamic positioning system. The workpiece is held in a floating state that allows automatic adjustment and compensation for positioning errors, enabling the workpiece to self-align with the tool axis through controlled movement rather than rigid constraint.
Solution Approach 2:
The patent changes the positioning parameters from fixed horizontal constraints to floating constraints that permit controlled movement in multiple directions. By allowing the workpiece to move freely in the floating state, the system transforms rigid positional parameters into dynamic parameters that can adapt to alignment requirements, improving the alignment between tool axis and hole center.
2Manufacturing precision
If the workpiece is held horizontally by a fixture, then machining can be performed, but the tool axis becomes misaligned with the hole center, causing cutting outside the target area
Solution Approach 1:
The floating holding mechanism enables dynamic adjustment of the workpiece position and orientation, allowing the system to compensate for alignment deviations between the tool axis and hole center. This dynamic capability ensures that the workpiece can self-align during machining, maintaining accurate dimensional control.
Solution Approach 2:
The floating positioning system allows the workpiece to self-align with the tool axis through its inherent freedom of movement. The workpiece automatically adjusts its position to achieve proper alignment without requiring external intervention or complex positioning mechanisms, thereby improving axis alignment accuracy.
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
The platform enhances machining precision by allowing the workpiece to move and rotate freely along multiple axes, compensating for tool deviations and reducing errors caused by tilting, resulting in improved dimensional accuracy.
Implementation Method 1
an elastic module connected between the base and the holding platform along a third vertical axis for allowing the holding platform to move along and rotate around the third axis relative to the base
Data Source
AI summary
A floating type machining platform includes a base, a holding platform, a first elastic module, a second elastic module and a third elastic module. The holding platform is configured to hold a workpiece. The first elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a first axis relative to the base. The second elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a second axis relative to the base. The third elastic module is connected between the base and the holding platform for allowing the holding platform to move along and rotate around a third axis relative to the base. Wherein, the first and the second axes are different horizontal axes, and the third axis is a vertical axis.