Tipped Disc Blade Balancing via Eccentric Hole Drilling
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Solution Overview
Problem
The current manual balancing process of tipped disc blades is time-consuming, costly, and prone to human errors, leading to potential mechanical weakness and rejection of disc blades due to excessive material removal.
Innovation Solution
A machine and method that automatically create balancing holes in an eccentric position on the disc blade to adjust the center of mass, using a drilling assembly and electronic detection system to precisely remove material and achieve balance without operator intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual grinding method is used to remove excess material, then balancing precision can be achieved, but production time increases and skilled operators are required
Solution Approach 1:
The patent replaces the manual mechanical grinding process with an automated drilling system. The balancing machine automatically positions and drills holes at calculated eccentric positions on the disc blade, eliminating the need for manual grinding operations while maintaining balancing precision and significantly reducing production time
Solution Approach 2:
The system performs preliminary calculation of the exact hole position and drilling parameters before the actual drilling operation. The control unit calculates the optimal eccentric position based on measured unbalance data, allowing the drilling operation to be executed precisely without trial-and-error manual adjustments
2Ease of manufacture
If manual grinding is used, then material removal can be performed, but human errors cause excessive material removal and tooth weakness
Solution Approach 1:
The patent replaces manual grinding with an automated drilling system controlled by a control unit. The system calculates the precise hole position and drilling parameters based on measured unbalance data, eliminating human error in material removal quantity while maintaining the capability to remove excess material effectively
Solution Approach 2:
The balancing machine performs self-measurement and self-correction. The measurement unit detects unbalance, the control unit calculates the required correction, and the drilling unit executes the correction automatically, creating a closed-loop system that eliminates human error in the material removal process
3Manufacturing precision
If multiple balancing iterations are performed, then precision can be improved, but production time and costs increase significantly
Solution Approach 1:
The system performs preliminary calculation of the exact hole position, diameter, and depth based on the measured unbalance data before executing the drilling operation. This preliminary planning allows the system to achieve the required balancing precision in a single operation rather than through multiple iterative adjustments
Solution Approach 2:
The system uses feedback from the measurement unit to automatically adjust the drilling parameters. The measurement data feeds into the control unit which calculates the precise correction needed, creating a closed-loop system that achieves high precision in one operation without requiring multiple manual iteration cycles
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
The solution significantly reduces production time and costs, minimizes waste, and ensures precise balancing, eliminating the risk of mechanical weakness, while not requiring skilled operators.
Implementation Method 1
a drilling assembly (6) adapted to make, in the disc blade (100), one or more balancing holes (109) in an eccentric position with respect to the rotation axis (A)
Data Source
AI summary
A method for balancing disc blades comprising the steps of: determining the initial position of the center of mass of the disc blade to be balanced with respect to its main axis; calculating/determining the number, the position and/or the dimensions of one or more balancing holes eccentric with respect to said main axis and necessary for removing an amount of material sufficient to bring the center of mass of the disc blade at a distance from the main axis lower than a predetermined maximum limit value; and forming said balancing hole or holes on the central disc in an eccentric position with respect to said main axis. The method improves the producibility of disc blades.