Torque Wrench Calibration Actuator Using Magnetic Coupling
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Solution Overview
Problem
Existing actuating devices for calibrating torque wrenches struggle to accurately reproduce screw connections with high measuring inaccuracy and significant effort.
Innovation Solution
An actuating device that allows independent adjustment of torque and rotation angle actuators via motors, creating a closed torque circuit with a rotation axis, enabling precise simulation of screw connections and calibration without friction systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional actuating device is used to calibrate torque wrenches, then the calibration process can be performed, but the screw connection reproduction has high measuring inaccuracy and requires significant effort
Solution Approach 1:
The patent replaces friction-based mechanical connections with a magnetic coupling system. The magnetic coupling device uses magnetic fields to transmit rotational motion and torque without physical contact, eliminating friction errors and mechanical wear. This substitution of magnetic field interaction for mechanical friction contact directly resolves the measuring inaccuracy problem while simplifying the calibration process
Solution Approach 2:
The patent introduces a magnetic coupling device as an intermediary between the actuating mechanism and the torque wrench. This magnetic mediator transfers rotational motion and torque information without direct mechanical contact, eliminating the friction and mechanical errors that caused high measuring inaccuracy in conventional systems
2Reliability
If a friction-based mechanical system is used to simulate screw connections, then the torque can be applied, but the measuring inaccuracy increases due to friction and construction errors
Solution Approach 1:
The patent eliminates friction-based mechanical connections by using magnetic coupling to transmit torque and rotational information. The magnetic field interaction replaces physical contact, removing friction errors and improving both reliability and measurement precision simultaneously
3Adaptability or versatility
If independent adjustment of torque and rotation angle actuators is implemented, then any torque/rotation angle course can be created, but the device complexity increases
Solution Approach 1:
The patent implements a universal calibration system where the magnetic coupling device can handle both torque application and rotation angle measurement through a single integrated mechanism. The system can reproduce any torque/rotation angle course by independently controlling the actuators, achieving high adaptability while the modular magnetic coupling design keeps the overall complexity manageable
Data Source
AI summary
An actuating device for calibrating torque/angle wrenches encompassing a torque measuring system, includes at least a means for accommodating the torque/angle wrench, a torque actuator for applying a torque to the torque/angle wrench, and a torque sensor for detecting the torque. Provision is made for a rotation angle measuring system for rotating the torque measuring system in such a manner that a rotation of the torque/angle wrench about a rotation angle can be measured in addition to the measuring of a torque in the torque/angle wrench.