Integrated Robot Tool-Change Mount to Cut Weight and Parts

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Solution Overview

Problem

Existing solutions for connecting operating units to robot arms require multiple components and complex tool-change devices, leading to increased weight, dimensions, and production costs.

Innovation Solution

An operating unit with a connection member integrated into its supporting structure that directly connects to the tool-change device on the robot arm, featuring a hollow body with an opening for the cylindrical head and an inner seat for blocking elements, allowing for simplified electrical and hydraulic/pneumatic connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a separate first annular body is used to connect the operating unit to the robot arm, then the connection function is achieved, but the number of components increases leading to increased weight, dimensions, and production costs

Engineering Contradiction:
Improvenumber of componentsVSAvoidweight of operating unit
Core Design Contradiction:
Device complexityVSWeight of moving object

Solution Approach 1:

The patent merges the connection member with the supporting structure of the operating unit, creating an integrated component that serves both as structural support and connection interface. This eliminates the need for a separate first annular body, thereby reducing the total number of components, weight, and production costs while maintaining the connection function to the robot arm wrist.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The supporting structure is designed to perform multiple functions: it provides structural support for the tool and simultaneously serves as the connection interface for the tool-change device. This multi-functional design eliminates redundant components and reduces overall system complexity.

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

2Device complexity

If a separate first annular body is used for connection, then the connection function is achieved, but the overall dimensions of the operating unit increase

Engineering Contradiction:
Improvenumber of componentsVSAvoiddimensions of operating unit
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

By integrating the connection member into the supporting structure, the patent eliminates the need for additional external connection components that would increase the overall volume. The merged design allows the connection interface to be incorporated within the existing structural footprint.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If a separate first annular body is used for connection, then the connection function is achieved, but production costs increase

Engineering Contradiction:
Improvenumber of componentsVSAvoidproduction cost
Core Design Contradiction:
Device complexityVSEase of manufacture

Solution Approach 1:

The integration of the connection member with the supporting structure reduces the number of parts that need to be manufactured, assembled, and inventoried. This leads to lower production costs through reduced manufacturing complexity, fewer assembly operations, and simplified supply chain management.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If blocking elements project from the head during operation, then secure fixing is achieved, but the mechanism becomes more complex

Engineering Contradiction:
Improvefixing reliabilityVSAvoidtool-change device complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The blocking elements are designed to be automatically actuated during the tool-change operation itself, without requiring separate control mechanisms. The insertion motion of the first annular body into the second annular body automatically triggers the blocking elements to engage or disengage, making the fixing mechanism self-actuating and reducing overall system complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250100068A1Operating unit with integrated tool-change device
Publication Date: 2025.03.27 STROBIETTO ELIO
  • US20250100068A1 patent drawing
  • US20250100068A1 patent drawing
  • US20250100068A1 patent drawing

AI summary

Described herein is an operating unit that can be connected to a wrist of a robot arm, including: a tool, and a supporting structure carrying the tool, wherein the supporting structure includes a connection member via which the operating unit can be operatively connected in a releasable way to said the of the robot arm, wherein the connection member has an opening on an end wall thereof, which is configured to receive a head of a connection device associated to the wrist of the robot arm, and wherein the connection member includes an internal seat accessible through the opening and configured to receive blocking elements carried by the head so as to enable fixing of the operating unit to the wrist of the robot arm.