Electromagnetic Rod Driving Tool With Elastic Clamping Control
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Solution Overview
Problem
Current machining systems for rods with small diameters face limitations in angular speed and precision due to bulky pneumatic or hydraulic systems that consume excessive energy and require frequent maintenance, and existing electrical systems are not adapted for driving rods without mechanical connections.
Innovation Solution
A compact electrical driving tool with a stator-rotor configuration and an elastically deformable driving element that modifies its internal diameter to clamp or release the rod, using electromagnetic power to achieve high angular speeds and precision without circulating fluids, and a machine with two independently translatable driving tools for improved machining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pneumatic or hydraulic systems are used to clamp and drive the rod, then the rod can be securely clamped and driven, but the system becomes bulky and consumes excessive energy
Solution Approach 1:
The patent replaces pneumatic or hydraulic systems with an electromagnetic clutch system. The electromagnetic clutch uses magnetic fields to transmit torque and clamp the rod, eliminating the need for compressed air or pressurized hydraulic fluid. This substitution reduces energy consumption by avoiding continuous fluid circulation and leakage compensation, while maintaining reliable clamping through electromagnetic engagement.
Solution Approach 2:
The patent explicitly moves away from pneumatic and hydraulic systems. The background describes these systems as requiring fluid circulation to maintain pressure and compensate for leakage, which consumes energy. The invention adopts an electromagnetic alternative that does not require continuous fluid flow, thereby reducing energy consumption while maintaining clamping function.
2Reliability
If pneumatic or hydraulic systems are used to maintain clamping force, then the rod can be securely held, but the system requires frequent maintenance due to sealing wear
Solution Approach 1:
The electromagnetic clutch system replaces mechanical sealing components with electromagnetic fields for force transmission. The clutch uses magnetic attraction between electromagnet poles and clutch plates to maintain clamping force, eliminating seals that are subject to wear from continuous pressure and movement. This reduces maintenance frequency while maintaining reliable clamping force.
3Manufacturing precision
If the system size is reduced for better precision, then machining precision improves, but the system cannot provide sufficient clamping force for high speeds
Solution Approach 1:
The electromagnetic clutch provides high clamping force in a compact design. Electromagnetic fields can generate significant force without the bulky fluid reservoirs, hoses, and pressure regulation equipment required by pneumatic or hydraulic systems. This allows the system to maintain sufficient clamping force for high-speed operation while keeping the overall system size small enough to preserve machining precision.
4Use of energy by moving object
If electromagnetic clutch systems are used, then energy consumption is reduced, but the system is not adapted for driving rods without mechanical connections
Solution Approach 1:
The electromagnetic clutch system is segmented into modular components: an electromagnet assembly, clutch plates, and a driving element. The clutch plate can be configured with different engagement surfaces to accommodate various rod diameters and materials. The driving element transmits rotational motion from the electromagnet to the rod through friction or mechanical engagement, adapting to different rod configurations while maintaining energy efficiency.
Solution Approach 2:
The electromagnetic clutch is designed as a universal driving mechanism that can accommodate different rod sizes, materials, and machining requirements. The clutch plates can be adjusted or replaced to match different rod diameters, and the electromagnetic force can be modulated to provide appropriate clamping force for various materials. This multi-functionality allows the same basic system to drive rods without requiring mechanical connections while maintaining adaptability.
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 solution enables efficient, precise, and cost-effective machining of small-diameter rods with reduced energy consumption and increased machining speed, allowing for precise control of clamping force and torque, while being adaptable to various rod diameters and materials.
Implementation Method 1
The rotation of the rotors is generated by electrical power, using electromagnetic fields
Implementation Method 2
The driving element is an elastically deformable, hollow element, the diameter of which can be modified according to the relative angular position of its first and second ends
Data Source
AI summary
The present invention is directed to a driving tool (1) for driving a rod (R) in rotation, comprising two stators (10, 20), two rotors (11, 21), two connexion means (12, 22) and a driving element (3) connected to the two connection means (12, 22), wherein the driving element (3) is elastically deformable, and wherein the relative angular position of the two rotors can be modulated. The present invention also covers a machine (M) comprising such a driving tool (1) as well as a method of machining a rod (R) using the same.