Laser Interferometry Compensation for Faster Machine Tool Calibration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing machine tool measurement and compensation systems require additional auxiliary devices and power, are cumbersome to operate, result in long measurement times, low efficiency, and poor precision, necessitating high operator skill and preventing regular maintenance.
Innovation Solution
A machine tool rapid compensation system based on laser interferometry, comprising a trigger acquisition module, a laser interferometry measurement module, a data analysis and compensation module, and a communication module, which integrates within the machine tool to automate measurement and compensation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement and compensation equipment is installed outside the machine tool, then measurement capability is provided, but additional auxiliary devices and power supply are required, increasing device complexity
Solution Approach 1:
The patent integrates the laser interferometry measurement module directly into the machine tool structure, merging the measurement function with the machine tool itself. This eliminates the need for separate auxiliary measurement equipment and external power supplies, thereby reducing device complexity while maintaining measurement capability.
Solution Approach 2:
The machine tool is designed to perform its own measurement and compensation operations through the integrated system. The automated trigger acquisition and internal data processing enable the machine tool to self-diagnose and self-compensate, eliminating dependency on external equipment and operators.
2Measurement precision
If manual operation and parameter adjustment are required, then measurement can be performed, but measurement time is long and efficiency is low
Solution Approach 1:
The system pre-sets measurement parameters, trigger conditions, and compensation values within the machine tool's control system. The automated trigger acquisition module is pre-configured to automatically initiate measurements based on predetermined conditions, eliminating the need for operators to manually adjust parameters during measurement, thereby significantly reducing measurement time and improving efficiency.
Solution Approach 2:
The system implements automated feedback loops where measurement data is immediately processed and compensation values are automatically applied. The control system continuously monitors measurement results and adjusts compensation parameters in real-time, eliminating manual intervention and accelerating the measurement-compensation cycle.
3Productivity
If automated measurement is implemented, then measurement speed increases, but integration within the machine tool is required, increasing initial device complexity
Solution Approach 1:
The patent combines multiple functions (measurement, data processing, compensation, and control) into a single integrated module within the machine tool. This consolidation reduces the overall system complexity despite the advanced capabilities, as the integrated design eliminates the need for multiple separate components and their interconnections.
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 system achieves rapid, accurate, and efficient measurement and compensation, reducing operator dependency and enabling regular maintenance, with improved precision and increased operational efficiency.
Implementation Method 1
a machine tool rapid compensation system based on a principle of laser interferometry
Implementation Method 2
the laser head receives the measurement preparation signal and the pulse value to emit a laser
Implementation Method 3
the environmental sensor collects an air temperature value, a humidity value, and an atmospheric pressure value
Implementation Method 4
the temperature sensor collects material temperature values of the X, Y, and Z axes of the machine tool and transmits the material temperature values to the laser head to obtain expansion compensation values
Data Source
AI summary
A machine tool rapid compensation system includes: a trigger acquisition module, a laser interferometry measurement module, a data analysis and compensation module, and a communication module. The trigger acquisition module receives a trigger acquisition instruction, converts an encoder position value into a pulse value, transmits the pulse value to the laser interferometry measurement module, retrieves parameter information and compensation point information of a machine tool from a numerical control system, and generates a machine tool operation code and a measurement preparation signal. The laser interferometry measurement module receives the measurement preparation signal and the pulse value to obtain error data, environmental data, and expansion compensation values. The data analysis and compensation module collects the error data, the environmental data, and the expansion compensation values to obtain precision parameters and compensation parameters, and transmits the precision parameters and the compensation parameters to the numerical control system through the communication module.