Rotary Table Transfer Mechanism for Roundness Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing roundness measuring machines face issues with uneven rotational force transfer due to the inertia force generated during acceleration or deceleration, leading to deterioration in rotation accuracy, which is not effectively addressed by incorporating elastic bodies to reduce vibration or slowing down the rotary table.
Innovation Solution
A rotary table design featuring a support mechanism with a spherical slide surface, a leveling adjustment mechanism with a downward-extending leveling shaft, and a transfer mechanism with an annular transfer member and rotatable connecting mechanisms, ensuring symmetrical force transfer and preventing unevenness of rotational forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pin members are used to transfer rotative force from the rotary base to the stage, then the stage can be inclined for leveling adjustment, but uneven rotational force transfer occurs due to inertia force during acceleration or deceleration, deteriorating rotation accuracy
Solution Approach 1:
The invention divides the force transfer system into multiple segments: the rotary base, the annular transfer member, and the stage are separated by these components. The rotative force is transferred through the annular transfer member rather than directly through pin members, segmenting the force path to eliminate concentrated stress points and achieve more uniform force distribution, thereby resolving the contradiction between leveling adjustment capability and rotation accuracy
Solution Approach 2:
The annular transfer member serves as an intermediary component between the rotary base and the stage. Instead of directly transferring force through pin members that cause uneven distribution, the annular transfer member mediates the force transfer, distributing the rotative force uniformly around its circumference. This intermediary structure enables both leveling adjustment and maintains high rotation accuracy by preventing inertia force-induced unevenness
2Measurement precision
If elastic bodies are incorporated to reduce vibration from the drive motor, then rotation accuracy can be improved, but the rigidity of the force transfer path is reduced
Solution Approach 1:
The invention changes the structural parameters of the force transfer path by replacing the pin member configuration with an annular transfer member. This structural parameter change allows the system to achieve vibration reduction and rotation accuracy improvement without compromising rigidity, as the annular structure inherently provides both flexibility for vibration absorption and sufficient rigidity for precise force transfer
3Measurement precision
If acceleration or deceleration of the rotary table is slowed down to reduce inertia force, then rotation accuracy can be maintained, but work efficiency is reduced
Solution Approach 1:
The annular transfer member is designed to preemptively handle inertia forces during acceleration and deceleration phases. By distributing forces uniformly through the annular structure before they can cause detrimental effects, the system maintains rotation accuracy even during normal-speed operation, eliminating the need to slow down the rotary table and thereby preserving work efficiency
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 achieves leveling adjustment and prevents uneven rotational force transfer, maintaining high accuracy in rotary positioning while allowing for efficient operation without compromising rigidity or work efficiency.
Implementation Method 1
a support mechanism that is disposed on the rotary base and supports the stage; the support mechanism includes a support member that is supported by the rotary base and supports a lower side of the stage at a spherical slide surface
Data Source
AI summary
A rotary table includes: a stage; a rotary base configured to be rotated around a rotation center axis; a support mechanism that is disposed on the rotary base and supports the stage; a leveling adjustment mechanism configured to perform a leveling adjustment of the stage; and a transfer mechanism configured to transfer a rotative force of the rotary base to the stage. The transfer mechanism includes: an annular transfer member configured to receive the support mechanism therethrough; a first connecting mechanism that connects the transfer member and the rotary base and is rotatable around the first axis; and a second connecting mechanism that connects the transfer member and the stage and is rotatable around a second axis defined in a direction intersecting the first axis.