Robotic Arm Grinding Package Pneumatic Motor Segmentation

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Solution Overview

Problem

Conventional robotic arms equipped with grinding tools using electric motors have restricted movement due to structural limitations, and the use of pneumatic motors is rare, leading to instability and inflexible motion.

Innovation Solution

A grinding package fitted on a robotic arm, comprising a main body, a pneumatic motor, a bridging part, and a grinding tool, where the main body forms separate spaces with a communicating hole, an intake channel, and an exhaust channel, allowing for stable operation and flexible movement by utilizing working gas to drive the grinding tool through a transmission shaft.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a ready-made grinding machine tool is installed on a robotic arm, then the robotic arm can perform grinding operations, but the structure restricts the robotic arm to specific movements without flexible motion

Engineering Contradiction:

Improvegrinding operation capabilityVSAvoidrobotic arm movement flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The grinding machine tool is divided into separate functional modules (grinding head, motor, support structure) that can be independently positioned and adjusted on the robotic arm, allowing flexible arrangement without restricting arm movement

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The grinding tool is positioned in a secondary space relative to the robotic arm's primary movement plane, allowing the arm to move freely in its operational dimensions while the tool provides grinding functionality from a different spatial orientation

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If a grinding machine tool is installed on a robotic arm using conventional structures, then grinding operations can be performed, but the structure is not stable as the grinding tool is not a primary structure of the robotic arm

Engineering Contradiction:

Improvegrinding operation capabilityVSAvoidstructural stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The grinding machine tool structure is merged with the robotic arm's primary structural elements, integrating the tool support into the arm's load-bearing framework rather than adding separate auxiliary mounting structures

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The robotic arm's primary structures are designed to serve multiple functions, including both movement operations and supporting the grinding tool, eliminating the need for dedicated auxiliary mounting structures

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If electric motors are used to drive grinding machine tools on robotic arms, then grinding operations can be performed, but the structure is complex and movement is restricted

Engineering Contradiction:

Improvegrinding operation capabilityVSAvoidstructural complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The electric motor is replaced with a pneumatic motor that utilizes compressed air as the working medium, simplifying the mechanical structure by eliminating electric motors, gearboxes, and associated control systems while maintaining grinding functionality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

The solution provides enhanced structural stability and flexible movement for the robotic arm, eliminating the need for additional structural reinforcement and ensuring efficient grinding operations.

Implementation Method 1

a pneumatic motor, a bridging part and a grinding tool, the main body forming a first space, a second space, a communicating hole communicating the first space to the second space

Methodology Applied

Scientific EffectPneumatic motor:

Data Source

PatentUS11548163B2Grinding package fitted on robotic arm

Publication Date: 2023.01.10 XPOLE PRECISION TOOLS INC

AI summary

A grinding package fitted on robotic arm includes a main body, a pneumatic motor, a bridging part and a grinding tool. The main body is formed with a first space, a second space, a communicating hole communicating the first space to the second space, a connecting wall within the first space, an intake channel, an exhaust channel, openings of the first space and the second space respectively located on each of two parallel sides of the main body, the connecting wall having a ventilation hole. The pneumatic motor includes a motor body within the first space, and a transmission shaft connected to the motor body while extended from the second space through the communicating hole. The bridging part is combined with the main body and the robotic arm, the bridging part closing off the first space, the grinding tool facing the second space and being joined to the transmission shaft.