Dual-Axis Motion Beam Control Using Encoder Compensation
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Solution Overview
Problem
Dual-axis simultaneous motion systems are prone to vibration and positioning errors due to assembly and manufacturing inaccuracies, leading to suboptimal control and reduced speed.
Innovation Solution
A dual-axis simultaneous motion system utilizing encoder compensation, where bearings and encoders measure rotational angles to determine displacement and internal stress, enabling the control unit to adjust drivers for steady-state motion and minimize vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed connection method is used between transverse axis and driving modules, then assembly is simplified, but measurement precision and control optimization are compromised
Solution Approach 1:
The patent introduces bearings as intermediary components between the transverse axis and driving modules. These bearings enable rotational movement while maintaining connection, allowing the encoder to accurately measure rotational angles without requiring rigid fixed connections. This intermediary mechanism resolves the contradiction by providing both mechanical connection and measurement capability.
Solution Approach 2:
The patent replaces direct mechanical fixed connections with a system using bearings and encoders. The encoder converts mechanical rotational position into electrical signals for precise measurement, substituting pure mechanical connection with a hybrid electromechanical system that achieves both ease of assembly and high measurement precision.
2Reliability
If encoder compensation is implemented, then control precision and vibration reduction are improved, but device complexity increases
Solution Approach 1:
The patent implements feedback control by using encoders to continuously measure rotational angles and feeding this information back to the control system. The control system processes this feedback and adjusts driving module commands accordingly, enabling precise compensation for assembly errors and vibration reduction while maintaining manageable system complexity through standardized feedback control algorithms.
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
Optimizes control, increases speed, and reduces vibration by ensuring steady-state operation through encoder-based feedback, thereby improving the overall performance of dual-axis motion systems.
Implementation Method 1
The encoder is spatially corresponding to the bearing and configured to measure a rotational angle of the first end of the transverse beam relative to the first sliding block or of the second end of the transverse beam relative to the second sliding block
Data Source
AI summary
A dual-axis simultaneous motion system is disclosed and includes a first-axis sliding module, a second-axis sliding module, a transverse beam, a bearing, an encoder and a control unit. A first driver of the first-axis sliding module drives a first sliding block to slide. A second driver of the second-axis sliding module drives a second sliding block to slide. The transverse beam is connected to the first sliding block and the second sliding block. The bearing is pivotally connected between the transverse beam and the first or second sliding block. The encoder is configured to measure an angle of the transverse beam relative to the first or second sliding block. The control unit is connected to the first driver, the second driver and the encoder, and controls the first and second driver based on the encoder compensation, so that the first and second sliding blocks drive the transverse beam to slide.