Induction Spindle Restraining Structure for Higher Rotational Speed
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Solution Overview
Problem
Conventional high frequency vibration spindle systems are limited by structural design, which prevents further increase in spindle speed due to centrifugal forces that can cause the electric power transmission device to rupture and disintegrate.
Innovation Solution
A high frequency vibration spindle system with non-contact power transmission and a restraining part made of carbon fibers or composite materials that wraps around the second induction module to counteract centrifugal forces during rotation, enhancing structural strength and allowing for increased spindle speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the spindle speed is increased to improve processing efficiency, then productivity increases, but the centrifugal force causes the electric power transmission device to rupture and disintegrate
Solution Approach 1:
The patent replaces the mechanical contact-based power transmission system with a non-contact electromagnetic induction system. The first induction module on the spindle and second induction module on the toolholder transmit power wirelessly through electromagnetic fields, eliminating mechanical wear and structural failure risks associated with high-speed rotation. This substitution allows the spindle to operate at higher speeds without compromising the integrity of the power transmission device.
Solution Approach 2:
The patent employs composite materials in the construction of the induction modules and restraining parts to enhance structural strength and centrifugal force resistance. By using composite materials with high strength-to-weight ratios, the system can withstand the increased centrifugal forces generated at higher spindle speeds while maintaining the integrity of the electric power transmission device.
2Productivity
If the spindle speed is increased to improve processing efficiency, then productivity increases, but the centrifugal force causes structural strength to decrease
Solution Approach 1:
The patent replaces the mechanical contact-based power transmission system with a non-contact electromagnetic induction system. The first induction module on the spindle and second induction module on the toolholder transmit power wirelessly through electromagnetic fields, eliminating mechanical wear and structural failure risks associated with high-speed rotation. This substitution allows the spindle to operate at higher speeds without compromising the integrity of the power transmission device.
Solution Approach 2:
The patent employs composite materials in the construction of the induction modules and restraining parts to enhance structural strength and centrifugal force resistance. By using composite materials with high strength-to-weight ratios, the system can withstand the increased centrifugal forces generated at higher spindle speeds while maintaining the integrity of the electric power transmission device.
3Device complexity
If a conventional contact-based power transmission system is used, then the structure is simple, but the system cannot withstand high centrifugal forces at high speeds
Solution Approach 1:
The patent replaces the mechanical contact-based power transmission system with a non-contact electromagnetic induction system. The first induction module on the spindle and second induction module on the toolholder transmit power wirelessly through electromagnetic fields, eliminating mechanical wear and structural failure risks associated with high-speed rotation. This substitution allows the spindle to operate at higher speeds without compromising the integrity of the power transmission device.
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 design effectively counteracts centrifugal forces, improving the structural strength and allowing for higher maximum rotational speeds of the spindle system, thereby enhancing processing efficiency and tool longevity.
Implementation Method 1
the second induction module is adapted to receive an electric power from the first induction module in a non-contact electromagnetic induction manner
Implementation Method 2
the restraining part winds around an exterior circumference of the second induction module to provide a restraint force for counteracting a centrifugal force generated when the second induction module rotates
Implementation Method 3
a transducer, adapted to be controlled to vibrate the tool and being disposed at the toolholder and electrically connected with the second induction module to receive the electric power
Data Source
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AI summary
A high frequency vibration spindle system (100, 200) with non-contact power transmission and a method for manufacturing a restraining part (50, 240) used therein are disclosed. The high frequency vibration spindle system (100, 200) comprises: a spindle (10, 210); a toolholder (20, 220); an electric power transmission device (40, 230) including a first induction module (60, 250) and a second induction module (70, 260), wherein the second induction module (70, 260) is disposed at the spindle (10, 210) or the toolholder (20, 220), and the second induction module (70, 260) is adapted to receive an electric power from the first induction module (60, 250) in a non-contact electromagnetic induction manner; a transducer (30) adapted to be controlled to vibrate the tool (22) and being disposed at the toolholder (20, 220) and electrically connected with the second induction module (70, 260) to receive the electric power; and a restraining part (50, 240) located between the first induction module (60, 250) and the second induction module (70, 260). By the design of the restraining part (50, 240), the structural strength and stability of the second induction module (70, 260) can be improved, and the maximum rotational speed of the high frequency vibration spindle system (100, 200) can be increased.