Grinding Disc Eccentric Speed Detection via Wave Reflection
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Solution Overview
Problem
Conventional grinding machine tools fail to accurately detect the speed of random eccentric orbital motion of grinding discs, leading to inaccurate control of mechanical arms in precision industrial grinding operations.
Innovation Solution
A grinding machine tool with a grinding disc equipped with detected members defining a detection area greater than or equal to twice the eccentric distance, and an active detection member that emits and receives waves to output a detection signal, allowing for precise measurement of random eccentric orbital motion speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the grinding disc is driven by inertial centrifugal force without direct linkage to the driving shaft, then the grinding disc can perform random eccentric orbital motion, but the rotational speed of the grinding disc becomes difficult to detect accurately
Solution Approach 1:
A detected member is introduced as an intermediary between the grinding disc and the detection system. This member defines a detection area that interacts with a detection device to generate detection signals, enabling indirect measurement of the random eccentric orbital motion speed without disrupting the inertial drive mechanism
Solution Approach 2:
The mechanical direct linkage between the driving shaft and grinding disc is replaced with an inertial centrifugal force-driven system. The detection mechanism similarly substitutes mechanical speed transmission with a non-contact detection system using detection signals to measure motion parameters
2Measurement precision
If the detection area range is less than twice the eccentric distance, then the detection structure is more compact, but the speed detection becomes inaccurate
Solution Approach 1:
The detection area is pre-configured with a specific range (greater than or equal to twice the eccentric distance) to ensure that the detected member remains within the detection zone throughout the entire random eccentric orbital motion cycle, guaranteeing continuous and accurate detection signals
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
Enables accurate detection and control of random eccentric orbital motion speed, enhancing precision and automation in grinding operations by providing reliable rotational speed data for mechanical arms.
Implementation Method 1
an active detection member that emits and receives waves to output a detection signal
Data Source
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AI summary
A grinding machine tool (10) with random eccentric orbital motion speed detection, the grinding machine tool (10) comprises a body (11) and a grinding disc (12), the body (11) comprises a driving shaft (112) and a tool holder (113) connecting the grinding disc (12) and having an eccentric distance (117) relative to the driving shaft (112), and the grinding disc (12) performs grinding in a random eccentric orbital motion when the driving shaft (112) rotates. The grinding disc (12) comprises at least one detected member (122) on a side of the grinding disc (12) facing the body (11) for detecting a speed of the random eccentric orbital motion, and the at least one detected member (122) defines a detection area (123) with a range greater than or equal to twice the eccentric distance (117). Thereby, an accurate speed of the grinding disc (12) performing the random eccentric orbital motion is obtained, so that the grinding operation of precision grinding which is gradually performed by automation is more precisely controlled.