Rotary Workpiece Positioning With Sensor-Guided Angle Feedback
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Solution Overview
Problem
Current positioning and blocking devices for machining pieces lack effective means to ensure correct rotation angles, as reference scales can be dirty or unreadable, leading to incorrect machining due to unclear rotation status.
Innovation Solution
A positioning and blocking system with a base, rotatable body, sensor means for determining rotation angles, storage for reference angles, and a logic control unit to compare and generate signals indicating correct or incorrect rotation, along with light indicators to direct corrective rotations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a reference scale is provided on the positioning and blocking device to indicate rotation angles, then the operator can check the rotation angle, but the reference scale can be dirty or not easily readable, leading to incorrect machining
Solution Approach 1:
The patent replaces the mechanical reference scale with an optical sensor system. A sensor detects the position of a reference mark on the rotatable body and converts it into an electrical signal, which is then processed by a control unit to determine the rotation angle. This substitution eliminates the problems of dirt accumulation and poor readability associated with mechanical scales.
Solution Approach 2:
The patent implements a feedback mechanism where the sensor continuously monitors the rotation angle and provides real-time information to the control unit. The control unit compares the detected angle with the required angle and can provide visual or audible feedback to the operator, ensuring accurate positioning and eliminating uncertainty about the rotation status.
2Adaptability or versatility
If manual rotation of the body is allowed to achieve different machining angles, then versatility for different machining operations is provided, but the operator cannot easily determine if the rotation is correct
Solution Approach 1:
The control unit receives signals from the sensor indicating the current rotation angle and compares it with the required angle for the specific machining operation. It provides feedback to the operator through visual indicators (such as LED lights) showing whether the rotation is correct, thus ensuring reliability while maintaining versatility.
Solution Approach 2:
The patent replaces reliance on manual estimation and visual inspection of mechanical scales with an electronic sensing system. The sensor and control unit automatically determine the rotation angle, providing accurate and reliable information regardless of the number of different machining angles required.
3Device complexity
If no rotation indication system is provided, then the device structure remains simple, but incorrect rotation angles cause incorrect machining
Solution Approach 1:
The patent introduces a relatively simple electronic sensing system consisting of a sensor, a reference mark, and a control unit. This system provides accurate rotation angle detection without requiring complex mechanical mechanisms, thus maintaining simplicity while significantly improving machining accuracy through precise angular measurement and feedback.
Data Source
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AI summary
The present invention relates to an improved positioning and blocking system for positioning and blocking pieces with respect to a working plane. Said positioning and blocking system comprises a positioning and blocking device (1) comprising a base (2), a body (3) rotatable on said base (2) about a rotation axis (A), and sensor means for determining a rotation angle between said body (3) and said base (2). Said positioning and blocking system comprises storage means (SM) in which one or more reference angles are stored, each of which is associated with a machining of a piece, and a logic control unit (U) configured to: o acquire, through said sensor means, said rotation angle, o compare said rotation angle with a reference angle chosen on the basis of the machining to be performed on a piece, o generate a signal based on the comparison between the rotation angle and the reference angle.