Centrifugal Barrel Polishing Fixing-State Detection by Distance Sensing
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Solution Overview
Problem
In centrifugal barrel polishing machines, there is a risk of erroneously determining that the fixing member is in a fixing form when the barrel tank is deviated from the assumed angle with the rotation shaft, leading to potential unsafe operation.
Innovation Solution
A centrifugal barrel polishing machine equipped with a distance measurement unit that determines the fixing member's form by measuring a horizontal distance to a to-be-measured portion, preventing turret rotation if the fixing member is not in the correct form.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detection unit is used to determine whether the fixing member is in the fixing form, then the safety of the polishing operation is improved, but measurement errors may occur when the barrel tank is deviated from the assumed angle
Solution Approach 1:
The patent replaces the conventional mechanical detection unit with a laser displacement sensor that uses optical measurement to detect the position of the fixing member. This substitution eliminates contact interference and provides more precise measurement of the fixing member's position relative to the barrel tank, even when angular deviation occurs during centrifugal rotation.
Solution Approach 2:
The patent introduces a laser displacement sensor as an intermediary measurement tool between the detection system and the fixing member. This intermediary device measures the position of the fixing member indirectly through optical means, allowing accurate detection of the fixing state without being affected by the mechanical coupling or angular misalignment between components.
2Productivity
If the barrel tank rotates around a horizontal rotation shaft, then the centrifugal polishing function is achieved, but the barrel tank may deviate from the assumed angle causing detection errors
Solution Approach 1:
The patent transitions from detecting only the presence or absence of the fixing member to measuring its precise position in multiple dimensions. The laser displacement sensor measures the distance from the sensor to the fixing member along the measurement direction, providing dimensional information that allows the control unit to determine both the fixing state and angular position of the barrel tank during rotation.
Solution Approach 2:
The patent changes the detection parameter from a simple binary state (fixed/not fixed) to a continuous distance measurement. By measuring the distance from the laser displacement sensor to the fixing member, the system can detect subtle changes in position and angle, allowing accurate determination of the fixing state even when the barrel tank rotates at an assumed angle during centrifugal operation.
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
Ensures safe operation by preventing the start of centrifugal barrel polishing when the fixing member is not properly fixed, enhancing accuracy and stability.
Implementation Method 1
a distance measurement unit disposed to face in a measurement direction, along a substantially horizontal direction, with respect to a detection area located on a revolution path, of the barrel tank, centered on the revolution shaft
Data Source
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AI summary
A centrifugal barrel polishing machine includes a distance measurement sensor 15. When a barrel tank 50 is located in a detection area, a controller 10 determines whether a fixed-state distance is measured by a distance measurement sensor 15, and when the fixed-state distance is not measured, the controller 10 does not permit the rotation of a turret 22.