Rotary Table Support Structure for Rigidity and High-Speed Rotation
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Solution Overview
Problem
Existing rotary tables face challenges in maintaining mechanical rigidity during cutting and rotating at high speeds, leading to increased resistance, heat generation, and potential machining inaccuracies or failures.
Innovation Solution
A rotary table design featuring a housing with a cylindrical holding part, a roller bearing, a motor-driven rotary member with a flange part, and a support member with a sliding surface that contacts the flange part when advanced and separates when retracted, allowing for improved mechanical rigidity and high-speed rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the rotating stand is in sliding contact via the lower sliding surface and the upper sliding surface, then the mechanical rigidity of the rotary table is improved, but the resistance between the sliding surfaces increases
Solution Approach 1:
The support member is made movable along the first axis direction, transitioning between a contact state (during cutting) and a retracted state (during high-speed turning). This dynamic adjustment allows the system to optimize between mechanical rigidity and rotational resistance based on operational requirements
Solution Approach 2:
The support function is segmented into two distinct modes: contact mode for providing mechanical rigidity during cutting operations, and retracted mode for minimizing resistance during high-speed turning. This segmentation allows each mode to be optimized for its specific function
2Productivity
If the rotating stand rotates at high speed for high-speed cutting, then the productivity is improved, but the amount of heat generated by the sliding surface and drive motor increases
Solution Approach 1:
The support member is extracted from the contact state during high-speed turning, removing the source of sliding friction and heat generation. This allows the rotary table to rotate with minimal resistance, enabling high-speed operation without excessive heat buildup
3Strength
If the support member is advanced to contact the flange part, then the mechanical rigidity of the rotary member is improved, but the rotary member causes friction with the support member when rotating
Solution Approach 1:
The support member transitions dynamically between contact and retraction based on operational mode. During cutting, it contacts the flange part to provide rigidity. During high-speed turning, it retracts to eliminate friction, allowing smooth rotation without resistance
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 rotary table achieves enhanced mechanical rigidity during cutting and enables high-speed rotation without generating excessive heat, thus improving machining accuracy and reducing the risk of failures.
Implementation Method 1
a roller bearing which is arranged in the housing and which rotatably supports the rotary member
Implementation Method 2
the sliding surface contacts the flange part when the support member is advanced and separates from the flange part when it is retracted
Data Source
AI summary
A belt processing device moves a processing belt relative to a workpiece to process the workpiece. The belt processing device comprises a first roller that is a processing roller, a second roller that is a driven roller, a processing belt that is supported by the first roller and the second roller, a pneumatic motor that rotates the first roller or the second roller, an elastic ring that is installed on the outer circumference of the first roller, and an expansion prevention member that is installed on the elastic ring and has a greater modulus of elasticity than the elastic ring.