Cutting Blade Mount Alignment Using Vibration Contact Sensing

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Solution Overview

Problem

Existing cutting apparatuses require tedious and time-consuming manual alignment of the cutting blade mount and holder, which can become misaligned due to heat and mechanical stress, necessitating a more efficient method for determining the blade mount position.

Innovation Solution

A processing apparatus equipped with a vibration detecting sensor and a controller that moves the blade mount and holder to contact at multiple points, calculating the center alignment using vibration data to automate the positioning process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual visual and tactile alignment method is used to determine the center of the mount, then the alignment can be achieved, but the process becomes tedious and time-consuming

Engineering Contradiction:
Improvealignment precisionVSAvoidalignment time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual visual and tactile alignment method with an automated vibration detection system. The vibration detecting sensor automatically detects vibrations generated when the holder contacts the mount at multiple points, and the controller calculates the center position based on these vibration signals, eliminating the need for operator intervention and significantly reducing alignment time while maintaining precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-alignment by allowing the holder to automatically contact the mount at multiple points during the positioning process. The vibration detection and center calculation are performed autonomously by the sensor and controller, making the alignment process self-service without requiring manual visual or tactile determination by the operator.

Inventive Principle:
Principle #25Self-service

2Productivity

If automated vibration detection method is used to determine the center of the mount, then the alignment process becomes easy and fast, but requires additional sensors and control systems

Engineering Contradiction:
Improvealignment efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The vibration detecting sensor serves multiple functions: it detects vibrations during the alignment process, identifies contact points between the holder and mount, and provides data for center position calculation. This multi-functionality reduces the need for separate sensors for each measurement task, thereby minimizing the increase in system complexity while achieving high alignment efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses vibrations as an intermediary physical phenomenon to transmit information about contact between the holder and mount. Instead of requiring direct visual or tactile measurement, the vibration signals act as a mediator that carries positional information to the sensor, enabling automated detection and simplifying the overall system architecture despite the added automation capabilities.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Facilitates easy and precise determination of the cutting blade mount position, reducing operator effort and time while maintaining accurate alignment.

Implementation Method 1

one or both of the cutting unit and the blade changer unit have a vibration detecting sensor for detecting vibrations, and the controller includes a calculator for moving the boss or the bearing flange and the holder relatively to each other in the X-axis direction and a Z-axis direction perpendicular to the X-axis direction and the Y-axis direction to bring the boss or the bearing flange and the holder into contact with each other at at least three contact points, and calculating the center of the mount from an X coordinate and a Z coordinate where the vibration detecting sensor detects vibrations caused upon the contact between the boss or the bearing flange and the holder

Methodology Applied
Scientific EffectVibration detection: Vibration

Data Source

PatentUS11820042B2Processing apparatus
Publication Date: 2023.11.21 DISCO CORP
  • US11820042B2 patent drawing
  • US11820042B2 patent drawing
  • US11820042B2 patent drawing

AI summary

A processing apparatus includes a holding table for holding a workpiece, a cutting unit including a spindle and a mount, a blade changer unit for mounting a cutting blade on or dismounting a cutting blade from the mount, and a control unit. The blade changer unit includes a blade chuck for holding the cutting blade and a moving unit. The cutting unit includes a vibration detecting sensor. The control unit includes a calculator for calculating the central axis of the mount from a position where the vibration detecting sensor detects vibrations caused upon contact between the mount and the blade chuck, and a mounting/dismounting controller for aligning the central axis of the blade chuck with the central axis of the mount and mounting the cutting blade on and dismounting cutting blade from the mount.