Rotary Stand Feeder Structure for Stable Placement Plane Holding
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Solution Overview
Problem
Conventional rotary stands face issues with high load on the feeder and deformation of the placement plane due to insufficient holding force, leading to measurement inaccuracies and instability, especially when measuring objects with large inertia.
Innovation Solution
A rotary stand design incorporating a feeder mechanism with a self-aligning ball bearing and a spring-pressurized contact portion to balance external forces applied to the placement plane, reducing the load on the feeder and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding force is increased to prevent unexpected inclination or oscillation of the placement plane, then the stability and measurement accuracy are improved, but the load on the feeder increases causing reverse-starting, deformation, or upsizing
Solution Approach 1:
A held part is introduced as an intermediary component between the feeder and the placement plane. The feeder acts on the held part rather than directly on the placement plane, which then transmits the force. This intermediary structure distributes and transmits the holding force more efficiently, preventing feeder overload while maintaining sufficient holding force to prevent placement plane oscillation and inclination.
Solution Approach 2:
The invention changes the structural parameters of the force transmission path by introducing the held part with specific geometric features (protrusions, recesses, contact surfaces) that optimize force distribution. This parameter change allows the system to achieve higher holding force without proportionally increasing the load on the feeder components.
2Reliability
If the pressure on the placement plane is increased to improve holding force, then the stability against external forces is improved, but the placement plane deforms making objects unstable and affecting measurement accuracy
Solution Approach 1:
The held part serves as a mediator that distributes the pressing force from the feeder across a larger area of the placement plane rather than concentrating it at a single point. This force distribution prevents localized deformation of the placement plane while maintaining sufficient holding force to counteract external forces such as object weight and inertial forces during rotation.
Solution Approach 2:
The invention modifies the contact parameters between the feeder mechanism and the placement plane by introducing the held part with optimized contact surfaces and geometry. This changes the stress distribution parameters, reducing peak stresses that cause deformation while maintaining adequate holding force through increased contact area and optimized force vectors.
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 enhances the holding force while reducing the load on the feeder and deformation of the placement plane, improving measurement accuracy and stability, especially for objects with large inertia.
Implementation Method 1
a second contact portion pressurized by a spring
Implementation Method 2
at least one of the first contact portion and the second contact portion includes a self-aligning ball bearing
Data Source
AI summary
There is provided a rotary stand capable of reducing the load on a feeder and deformation of a placement plane. A rotary stand includes a feeder that adjusts an inclination of a placement plane. The feeder includes a first contact portion that interlocks with a feeding mechanism to move and a second contact portion pressurized by a spring. The first contact portion and the second contact portion disposed to face each other in the movement direction to sandwich a held part interlocking with the placement plane.