Shared Temperature Sensing for Machine Tool Thermal Compensation
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Solution Overview
Problem
The increasing number of machine tools requires a large number of temperature sensors for thermal displacement compensation, leading to higher costs and increased failure risks, as each machine tool needs multiple sensors even if they are equivalent and operate in similar environments.
Innovation Solution
A temperature measuring device that allows multiple machine tools to share output values from temperature sensors installed at common positions, reducing the total number of sensors needed and enabling communication between machines to provide temperature information across the network, thus minimizing the risk of sensor failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature sensors are installed in each machine tool for thermal displacement compensation, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent makes temperature sensors installed in one machine tool serve multiple functions by sharing their output values with other equivalent machine tools. Instead of each machine tool having dedicated sensors, the system allows cross-utilization of sensor data among machine tools with equivalent thermal characteristics, thereby reducing the total number of sensors while maintaining measurement precision for thermal displacement compensation.
2Reliability
If temperature sensors are installed in each machine tool, then reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent reduces sensor failure risk by sharing temperature sensor output values across multiple machine tools. When a sensor fails in one machine tool, the system can utilize temperature data from sensors in other equivalent machine tools, thereby maintaining operational reliability without requiring redundant sensors in each individual machine tool.
3Productivity
If the number of machine tools is increased, then productivity is improved, but the number of temperature sensors and cost increase
Solution Approach 1:
The patent enables temperature sensor output values to be shared among multiple machine tools, allowing the same sensor data to serve multiple productivity units. This approach allows the system to scale productivity by adding machine tools without proportionally increasing the number of temperature sensors, as equivalent machine tools can share sensor resources.
Solution Approach 2:
The patent merges the temperature measurement functions across multiple machine tools by allowing them to share sensor output values. Instead of maintaining separate sensor systems for each machine tool, the system combines sensor resources so that temperature data from one machine tool can be utilized by other equivalent machine tools, reducing the total sensor quantity required.
Data Source
AI summary
To provide a temperature measuring device for a thermal displacement compensation device, in which the values output by temperature sensors are shared among a plurality of machine tools, and thus the total number of the temperature sensors is reduced, thereby suppressing the total cost and also reducing the failure risk of the temperature sensors installed in the machine tools. A plurality of machine tools are made to use, in order to monitor a temperature of each of one or more common positions set in advance, temperature information measured by a temperature sensor installed at any position in the common positions in each of the machine tools, as temperature information of any position in the common positions without a temperature sensor installed in another machine tool in the plurality of machine tools.