Transcript COMPACT MOBILE LIFTING DEVICE Innovative Lifting Solutions Team 3

COMPACT MOBILE LIFTING DEVICE
Innovative Lifting Solutions
Team 3
Michael Shaffer, Ken Kammerer, Dave Geesaman, Jin Ko
Sponsor: Fraunhofer
Advisor: Dr. Michael Keefe
Background
The FRC-DE is focused on manufacturing metal products and
provides technology development and deployment of near-netshape manufacturing technologies, rapid prototyping, process
simulation, and lightweight construction.
Mission and Approach
Mission:
To design and build a mobile device which will
aid a user in lifting, moving, and placing heavy molds
into an injection molding machine, a hot press, and a
vacuum oven.
Approach:
We will use the engineering method to obtain a
conceptual design based upon the wants and
constraints of the customers. From this we will
construct and test a prototype in order to obtain our
final product.
Hot Press
Thermal Technology Inc.
Loaded / Unloaded daily
Injection Molding Machine
Arburg AllRounder S-Series
Injection Mold
Storage Rack
Vacuum Oven
Centorr Vacuum Industries
Customers and Wants
Customers:
Wants:
• James Adkins
• Michelle Mattera
• Brandon Fichera
• Bernie McGuinness
• Versatile
• Fast operation
• Maneuverable
• Inexpensive prototype
• Inexpensive to
manufacture
Constraints
• Unit must operate with all equipment
• Unit must be easily and safely maneuvered
• Unit must be operable by one person
• Unit must withstand daily use in a commercial
situation
• Unit must operate within rooms, hallways, and
doorways of Fraunhofer
Budget
Tentative Budget: $3000 if large
purchases are necessary
Wants and their Primary Metrics
Versatile:
Interfaces with all devices (Target: Yes)
Time to convert between modes of
operation (Target: 0 sec)
Fast operation:
Time to load & unload (Target: 5 seconds)
Maneuverable:
Pushing forces (Target: 10 to 20 pounds)
Overall weight (Target: 200 pounds)
Wants and their Primary Metrics
Minimize cost of
prototype:
No. of standardized parts (Target: All)
Minimize cost of
manufacture:
No. of standardized parts (Target: All)
Overall Weight (Target: 170 lb.)
Prioritized Metrics
Time to convert between modes of operation
Number of Commericially Available Parts
Number of Machines device can interface with
Time to move object into position
Overall weight
Time to load device into machine (after positioning)
Cost to replace failure-sensitive parts
Number of moving parts
Rolling friction
Torque required to turn device
Static force applied to machine
Overall dimensions (in use)
Power input by user
System Benchmark
Best Practice
Wesco Hydraulic Lift Table and Manual
Loading
• Caster wheels provide good
maneuverability
• Hydraulic lift cylinder provides
large lifting capacity
• Disassembly necessary for large
molds
Functional Benchmarks
Function: Lifting
Protema Pro Lift
• Fork lift design provides large
range of lifting height
• Motor to minimize power input by
user (none)
Functional Benchmarks
Function: Moving
Caster Wheels
• Maneuverability
• Commercially available
and inexpensive
Functional Benchmarks
Functions: Lifting, Positioning
Yale powered chain hoist
• No floor space required
• Easy positioning of object
• Largest range of lifting height
• Motor powered for minimal
operator work
Functional Benchmarks
Function: Positioning
Heavy duty drawer slide
• Each slide provides sliding motion
while supporting up to 225 lbs.
• Requires minimal time to load the
object into the machine (several
seconds)
Functional Benchmarks
Function: Positioning
Tentacle Robotic Arm
•Time to convert between
tasks: None
•Able to interface with any
machine
Schedule: To Date
Goal:
Status:
• Refinement of wants and constraints
Completed
• Definition of metrics and target values
Completed
• Generation of solutions and concepts
Completed
• Concept evaluation
In Progress
Schedule: Looking Ahead
Common Responsibilities:
•Concept generation, presentation preparation, report writing.
Individual Responsibilities:
David Geesaman
• Concept development and prototype design specifications, detailed
evaluation of metrics
Ken Kammerer
•Concept drawings, Computer modeling, prototype design, sponsor
interaction, model construction
Michael Shaffer
• Concept cost estimation, concept feasibility studies, model construction
Jin Ko
• Schedule maintenance, concept development, model construction
Schedule: Long Term
Tasks:
Projected Completion:
• Model Construction
• Determination of Best Concept
• Final Prototype Construction
• Purchase of Commercial Parts for Prototype
• Design of Test Program for Prototype
• Final Prototype Testing and Critique
• Determine Potential Improvements
• Prepare for and Give Oral Presentations
• Preparation of Written Reports
- December 1998
- December 1998
- February 1999
- February 1999
- March 1999
- April 1999
- April 1999
- As per individual deadline
- As per individual deadline
Concept 1: Sliding Forklift
Strengths:
• Time to convert is low
• Uses commercially available parts
• Can interface with all three machines
• Fast
Concept 2: Fold-out Low-Friction
Tabletop
Strengths
• Uses commercially available parts
• Can interface with all three machines
• Fast positioning