Roundness Measuring Apparatus Joystick Centering
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Solution Overview
Problem
Conventional roundness measuring devices require complex and labor-intensive centering and leveling operations to align the rotation axis with the workpiece's center axis, which can be simplified and automated, but existing solutions involve significant structural and cost barriers.
Innovation Solution
A roundness measuring device with a table that includes first and second displacement mechanisms and tilt mechanisms, driven by a centering and leveling controller, using an external operator like a joystick to adjust the workpiece's position and tilt relative to the rotation axis, allowing for intuitive and motor-driven adjustments without the need for extensive software updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a centripetal table with dedicated adjustment mechanisms (CX, CY, LX, LY axes) is used to perform centering and leveling operations, then the rotation axis alignment precision is improved, but the device complexity and operation difficulty increase significantly
Solution Approach 1:
The patent extracts the complex multi-axis adjustment mechanisms (CX, CY, LX, LY) from the table structure and replaces them with a simple joystick control system. The joystick directly controls motor-driven displacement of the placement plate, eliminating the need for dedicated adjustment mechanisms for each axis while maintaining alignment precision through software-controlled coordinate transformation.
Solution Approach 2:
The joystick serves as a universal control interface that can perform both centering and leveling operations through a single device. By using coordinate transformation algorithms, the same joystick control system handles multiple functions (CX, CY, LX, LY adjustments) that previously required separate dedicated mechanisms, simplifying the overall device structure.
2Ease of operation
If manual operation of multiple adjustment knobs (CX, CY, LX, LY) is used for centering and leveling, then the alignment operation can be performed, but the ease of operation deteriorates due to the need to switch between multiple axes
Solution Approach 1:
The patent merges the control of all four adjustment axes (CX, CY, LX, LY) into a single joystick interface. The joystick simultaneously controls displacement in both horizontal and vertical directions through motor-driven mechanisms, allowing operators to perform centering and leveling operations without switching between multiple knobs or controls, thereby improving ease of operation and reducing adjustment time.
3Ease of operation
If full automation of centering and leveling operations is implemented with motor-driven mechanisms and control software, then the ease of operation is improved, but the cost and device complexity increase significantly
Solution Approach 1:
The patent replaces complex mechanical adjustment mechanisms with a simplified motor-driven displacement system controlled by a joystick. Instead of implementing full automation with sophisticated control software and multiple motor-driven axes, the system uses a single joystick interface that sends simple displacement commands to motor-driven mechanisms, achieving automation while avoiding the complexity and cost of full software-based control systems.
Data Source
AI summary
A roundness measuring device including: an angle detector detecting a current rotation angle of a table relative to an X axis direction; a joystick (external operator) issuing an instruction for an operation amount of a rotation axis line of the table; a centering controller calculating a CX axis displacement amount and a CY axis displacement amount from the operation amount and the rotation angle, and displacing a CX axis displacement mechanism and CY axis displacement mechanism based on the calculated CX axis displacement amount and CY axis displacement amount; and a centering controller calculating an LX axis tilt amount and an LY axis tilt amount from the operation amount and the rotation angle, and displacing an LX axis tilt mechanism and LY axis tilt mechanism based on the calculated LX axis tilt amount and LY axis tilt amount.