Machine Tool Processing Control for Burr and Cutting Error Feedback

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Solution Overview

Problem

Conventional technologies fail to effectively present processing information based on the condition of a preliminarily processed workpiece, leading to reduced working efficiency.

Innovation Solution

A processing control device that includes a driving device, a controller, and an output device to generate and present processing information, such as burr positions and cutting errors, to the user, allowing for improved recognition and control during regular cutting and error correction processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If processing information based on preliminarily processed workpiece condition is not presented to user, then device complexity is reduced, but working efficiency is lowered

Engineering Contradiction:

Improveworking efficiencyVSAvoidinformation presentation system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary cutting processing before regular cutting to detect potential burr positions and cutting errors. By conducting detection actions in advance and presenting the results to the user before regular processing begins, the system enables proactive adjustments and prevents rework, thereby improving working efficiency without requiring complex real-time monitoring systems during actual cutting operations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system presents processing information including burr positions and cutting errors to the user based on preliminary workpiece conditions. This feedback mechanism allows operators to adjust cutting parameters or procedures before regular processing, improving efficiency by preventing defects rather than detecting them during or after production. The feedback is simplified to essential information only, avoiding system complexity.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If processing information is not presented to user, then ease of operation is reduced, but information processing load is decreased

Engineering Contradiction:

Improveuser recognition of processing informationVSAvoidprocessing information presentation

Core Design Contradiction:

Ease of operationVSLoss of information

Solution Approach 1:

The system extracts and presents only the most critical processing information to the user, specifically burr positions and cutting errors detected during preliminary processing. By selecting and presenting only essential information rather than all possible data, the system improves ease of operation by reducing information overload while preventing loss of critical defect information that would be necessary for quality control.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system visually presents processing information such as burr positions and cutting errors on a display unit, using distinct visual indicators to represent different types of defects and their severity. This visual presentation method enhances ease of operation by making defect information immediately recognizable and intuitive for operators, allowing quick assessment and decision-making without complex data interpretation.

Inventive Principle:

Principle #32Color changes

3Manufacturing precision

If burr positions and cutting errors are not detected, then manufacturing precision is reduced, but measurement complexity is decreased

Engineering Contradiction:

Improveburr position and cutting error detectionVSAvoidstress-based defect detection

Core Design Contradiction:

Manufacturing precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The system uses stress detection as an intermediary mechanism to indirectly identify burr positions and cutting errors. Instead of directly measuring complex geometric defects, the system detects stress patterns that occur during preliminary cutting, which serve as indicators of potential defects. This intermediary approach achieves high manufacturing precision by detecting defects early while avoiding the complexity of direct visual or tactile inspection systems.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces complex mechanical inspection methods with stress-based detection during preliminary cutting. By monitoring mechanical stress patterns and forces during the cutting process, the system can identify potential burrs and errors without requiring separate measurement devices or post-processing inspection equipment, thereby achieving high detection precision with reduced measurement system complexity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS11215970B2Processing control device, machine tool, and processing control method

Publication Date: 2022.01.04 MITSUBISHI ELECTRIC CORP

AI summary

A processing control device controls a tool for processing a first workpiece. The processing control device includes a driving unit to drive the tool, an output unit, and a control unit to control the driving unit and the output unit. Processing information obtained by performing preliminary processing on a second workpiece before performing first processing on the first workpiece is transmitted by the control unit to the output unit and accordingly the processing information is outputted from the output unit. The control unit generates a control command for performing second processing that is performed on the first workpiece after the first processing. The control unit controls the driving unit according to the control command.