Machine Tool Transfer Function Generation for Machining Simulation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing machining simulation methods require data collection and specialized knowledge to obtain the transfer function of a machine tool, making them cumbersome and inaccessible to users without trial operations.

Innovation Solution

A machining simulation device and method that generates a transfer characteristic of a machine tool using control information, motor information, and control parameters, allowing for simulation without requiring trial operations or specialized knowledge, by calculating motor and control characteristics to satisfy predetermined requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional machining simulation methods are used to obtain transfer function, then simulation accuracy can be achieved, but data collection and specialized knowledge are required making the process cumbersome

Engineering Contradiction:

Improvesimulation accuracyVSAvoidusability

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically generates the transfer function by utilizing control information and motor information that are already present in the machine tool's control system. The transfer characteristic generation unit performs self-service by calculating the transfer function without requiring external data collection or specialized user knowledge, thus resolving the contradiction between maintaining simulation accuracy and improving ease of operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Instead of requiring users to perform physical data collection through trial operations, the system creates a virtual copy of the transfer function characteristics by processing existing control information and motor information. This copying approach maintains the accuracy benefits of traditional methods while eliminating the operational burden.

Inventive Principle:

Principle #26Copying

2Manufacturing precision

If trial operations and data collection are performed to obtain transfer function, then accurate simulation results are achieved, but time and operational complexity increase

Engineering Contradiction:

Improvesimulation accuracyVSAvoidtime for data collection

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preliminary action by utilizing control information and motor information that are already available in the control system before simulation begins. The transfer characteristic generation unit processes this pre-existing information to generate the transfer function, eliminating the need for time-consuming trial operations and data collection while maintaining simulation accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system serves itself by automatically generating the transfer function from its own internal control information and motor information. This self-service capability eliminates the external data collection process entirely, resolving the contradiction between achieving accurate simulation results and reducing time loss.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If specialized knowledge is required to calculate transfer characteristic, then accurate transfer function is obtained, but the system becomes inaccessible to general users

Engineering Contradiction:

Improvetransfer function accuracyVSAvoidknowledge requirement

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The transfer characteristic generation unit performs self-service by automatically calculating the transfer function using control information and motor information from the control system. This automation eliminates the need for specialized user knowledge while maintaining calculation accuracy, effectively resolving the contradiction between precision and accessibility.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces the manual mechanical process of data collection and calculation with an automated computational process. The transfer characteristic generation unit uses control information and motor information to compute the transfer function automatically, substituting specialized human knowledge with algorithmic processing that is accessible to all users.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12585261B2Machining simulation device and machining simulation method

Publication Date: 2026.03.24 FANUC LTD

AI summary

The present disclosure provides a machining simulation device capable of obtaining a machine-tool transfer function without requiring data collection and expert knowledge. The machining simulation device includes: a transmission characteristic generation unit that generates a transmission characteristic of a machine tool; and a simulation execution unit that simulates behavior of the machine tool by using the transmission characteristic. The transmission characteristic generation unit includes: a control information acquisition unit that acquires motor information and a control parameter of a motor control system of the machine tool; a motor characteristic calculation unit that calculates a motor characteristics based on the motor information; a control characteristic calculation unit that calculates a control characteristic of the motor control system on the basis of the control parameter; and a transmission characteristic calculation unit that calculates the transmission characteristic satisfying a predetermined requirement on the basis of the motor characteristic and the control characteristic.