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Project Overview
Project Overview
The purpose of this fixture was to automate the fatigue testing of different friction hinges. After attempting this testing by hand, it was determined that an automated process was needed. After brainstorming, prototyping, machining, and coding, a final product was completed.
June 2019 - July 2019
Fixture Requirements
Fixture Requirements
Run continuously without human intervention
Will be used overnight and the weekend
Adaptable to different test requirements
Control the number of cycles before stopping
Set the interval and timing for breaks
Set the maximum speed of a cycle
Simple to use
Will be operated by people with no experience with the fixture
Must be able to output critical information about the test being preformed
Initial Prototyping
Initial Prototyping
Fully Assembled Prototype
Fully Assembled Prototype
Fully assembled prototype was constructed to validate the code, sizes, and concept as a whole
Paddle-Only Assembly
Paddle-Only Assembly
3D printed the components in order to confirm sizing as well as mechanical linkages
Final Product
Final Product
Successful System
Successful System
After receiving and assembling the machined parts, the fixture was put together and has been running successfully for over 150,000 cycles.
My Contributions
My Contributions
Hardware
Hardware
SolidWorks top-down modeling
Parts sourced from manufacturer
Design for manufacturing
Properly communicating requirements with manufacturer
Components properly mounted to allow for system movement during testing
Focused design on ease of use
Software
Software
Fully controlled by Arduino
Utilizes industrial stepper drivers
Interactive
Set number of cycles, speed, brakes etc.
System outputs useful information
Time for completion
Cycles to be completed
Breaks and when to take them
Speed and acceleration
Independent control for both motors
Components
Components
Specified the proper components for testing
Met certain power, strength, and cost requirements
Followed safety precautions for human-less environment
Created comprehensive tutorial for using the fixture
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