Substrate Conveying Robot Hand Circuit for Reduced Arm Wiring

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Solution Overview

Problem

Conventional substrate conveying robots face increased complexity and size due to extensive wiring required for sensor communication through the arm, which is inefficient and bulky.

Innovation Solution

Implement a substrate conveying robot system with a serial communication connection between the robot controller and hand circuit substrate via a daisy chain connection within the arm, utilizing a hand sensor and hand circuit substrate on the substrate holding hand, reducing the number of wiring lines and length.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple sensors are connected to the controller through wiring inside the arm, then sensor communication is achieved, but the wiring becomes complex and the arm size increases

Engineering Contradiction:

Improvesensor communicationVSAvoidwiring complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the traditional mechanical wiring system with a wireless communication system. Hand sensors communicate with the robot controller via wireless signals instead of physical wires, eliminating the need for complex internal wiring while maintaining reliable sensor communication functionality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts the wiring function from the arm structure by implementing wireless communication. The communication function is separated from the mechanical arm, allowing sensors to transmit data without requiring physical connection through the arm's interior

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If multiple sensors are connected to the controller through wiring inside the arm, then sensor communication is achieved, but the arm size increases

Engineering Contradiction:

Improvesensor communicationVSAvoidarm size

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent substitutes wireless communication for mechanical wiring, allowing sensor data transmission without occupying space within the arm structure. This maintains compact arm dimensions while achieving reliable sensor communication

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The communication function is extracted from the arm's internal structure, eliminating the need for wiring channels and reducing the arm's internal volume requirements while maintaining sensor connectivity

Inventive Principle:

Principle #2Taking out (Extraction)

3Adaptability or versatility

If wiring length is increased to connect sensors, then more sensors can be connected, but noise interference increases

Engineering Contradiction:

Improvesensor connection capabilityVSAvoidnoise interference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces long mechanical wiring with wireless communication, enabling multiple sensors to be connected without increasing wiring length. This eliminates the noise interference problem associated with long wires while maintaining the ability to connect multiple sensors

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12398000B2Substrate conveying robot system

Publication Date: 2025.08.26 KAWASAKI JUKOGYO KK

AI summary

A substrate conveying robot includes a hand sensor provided on a substrate holding hand, and a hand circuit substrate provided on the substrate holding hand and connected to the hand sensor, and a serial communication connection is made between a robot controller and the hand circuit substrate through an inside of an arm.