CNC Machining Tool Gravity Center Adjustment
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Solution Overview
Problem
Current machining tools with numerical control devices face challenges in precisely adjusting the gravity center position, especially when relocating small tools, as existing methods require trial and error, increasing man-hours and potentially damaging machine parts, and are often performed without electrical power, limiting precise numerical control.
Innovation Solution
A machining tool with a numerical control device that includes a storage unit for weight and gravity center data, an actual gravity center calculation unit, a target gravity center setting unit, and a movable part position correction unit, allowing for precise adjustment of the gravity center to an arbitrary point, even when electrical power is activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If trial and error method is used to position the moving part, then the gravity center position can be adjusted, but the number of trials increases causing increased man-hours and potential damage to machine parts
Solution Approach 1:
The system performs preliminary calculation of the gravity center position using stored weight and center of gravity data of the fixed part, movable part, and load. The numerical control device calculates the actual gravity center position before relocation and determines the target movable part position in advance, eliminating the need for trial-and-error adjustments during the relocation process.
2Measurement precision
If trial and error method is used to position the moving part, then the gravity center position can be adjusted, but repeated lifting and lowering causes load on machine parts
Solution Approach 1:
The numerical control device calculates the actual gravity center position using stored data and determines the correct movable part position before the lifting operation begins. This preliminary calculation ensures that the first lifting attempt is successful, preventing repeated lifting and lowering that would subject machine parts to unnecessary mechanical stress and potential damage.
3Ease of operation
If manual positioning is used when electrical power is deactivated, then the movable part position can be corrected, but precise positioning is impossible and brake application prevents movement
Solution Approach 1:
The system replaces manual mechanical positioning with an automated numerical control system that calculates and positions the movable part using electronic computation. The numerical control device determines the target position based on gravity center calculations and automatically moves the movable part to the correct position, eliminating the need for manual intervention even when the electrical power is deactivated or when brakes are applied.
Data Source
AI summary
A machining tool with a numerical control device includes an actual gravity center calculation unit configured to calculate an actual gravity center, the actual gravity center being a whole gravity center of the machining tool and the load, a target gravity center position set unit, a movable part position correction unit configured to correct the relative position of the movable part to the fixed part, to make the target gravity center position and the whole center gravity center position of the machining tool and the load coincident.