NC Machine Tool Backlash Diagnosis for Remote Maintenance
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Solution Overview
Problem
Conventional NC machine tools require an operator for each unit to diagnose and maintain, leading to labor inefficiencies in large factories with multiple machines, as existing technologies do not provide a comprehensive solution for remote monitoring and management.
Innovation Solution
A system comprising one or more NC machine tools, a host computer device, and a communication unit that allows for remote monitoring and diagnosis, enabling the upload of numerical control information for centralized management and parameter adjustments, eliminating the need for operators at each machine tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an operator is disposed to each NC machine tool for diagnosis and maintenance, then the machine tool can be properly monitored and maintained, but labor costs and operational complexity increase significantly in large factories with multiple machines
Solution Approach 1:
The patent merges multiple NC machine tools into a single networked system where one host computer device manages diagnosis and maintenance for all connected machines. The numerical controllers of individual machine tools upload numerical control information to the host computer, which centralizes the diagnostic function and eliminates the need for separate operators at each machine.
Solution Approach 2:
The host computer device acts as an intermediary between the numerical controllers and the operator. It receives numerical control information from multiple numerical controllers via communication units, processes this information to diagnose machine tool states, and provides a unified interface for monitoring and maintenance, thereby reducing the need for direct operator intervention at each machine.
2Reliability
If multiple operators are assigned to monitor multiple NC machine tools, then comprehensive monitoring is achieved, but labor costs and time consumption increase
Solution Approach 1:
The host computer device is designed with universal functionality to monitor, diagnose, and manage multiple different NC machine tools simultaneously. A single operator using the host computer can perform tasks that previously required multiple operators, as the system handles information from various machine tools through a unified interface.
Solution Approach 2:
The numerical controllers automatically upload numerical control information to the host computer device without requiring manual intervention from operators. This self-service mechanism ensures continuous monitoring and data collection, allowing the system to maintain comprehensive surveillance while minimizing human labor input.
3Manufacturing precision
If numerical control parameters are adjusted to correct backlash, then machining accuracy is improved, but system complexity and adjustment time increase
Solution Approach 1:
The system performs preliminary diagnosis by continuously monitoring numerical control information and calculating backlash amounts before machining operations begin. By detecting backlash issues in advance and automatically adjusting parameters proactively, the system prevents machining defects without requiring time-consuming manual intervention during production.
Solution Approach 2:
The host computer device receives feedback in the form of numerical control information from numerical controllers, processes this data to diagnose backlash conditions, and automatically adjusts numerical control parameters based on the diagnosis results. This closed-loop feedback system enables rapid, automated parameter optimization that improves machining accuracy without increasing adjustment time.
Data Source
AI summary
A numerical control system diagnoses and maintains a numerical control machine tool by measuring backlash and downloading a backlash correction value to the numerical control machine tool. The system includes a host computer device that downloads a monitor management program to a numerical controller of the numerical control machine tool, collects numerical control information input/output between the numerical controller and a servomotor, analyzes the numerical control information, and diagnoses the numerical control machine tool.