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ATK Automated Bullet/Case Loading University of Idaho, Mechanical Engineering Dept. Team FMJ Chris Doudy, Ryan Kahre, Adriana Foreman, Ryan Bowen, Jordan.

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Presentation on theme: "ATK Automated Bullet/Case Loading University of Idaho, Mechanical Engineering Dept. Team FMJ Chris Doudy, Ryan Kahre, Adriana Foreman, Ryan Bowen, Jordan."— Presentation transcript:

1 ATK Automated Bullet/Case Loading University of Idaho, Mechanical Engineering Dept. Team FMJ Chris Doudy, Ryan Kahre, Adriana Foreman, Ryan Bowen, Jordan Maag Faculty Advisor: Dr Jay McCormack

2 Overview Problem Definition – Background Information – Problem Statement & Design Criteria – Deconstruction of Components Design Inspirations Design Concepts Current Developments – Build and Test – Optimization Experiment Future Work Final Deliverables Budget

3 Background Information Shaker tables are used to fill trays of 500 for bullet assembly Current methods cause ergonomic concerns – Heavy lifting – Repetitive motion – Lack of adjustability

4 Problem Statement Develop a working prototype to automate the labor intensive processes (lifting, pouring, orienting) currently being performed

5 Design Criteria 9mm caliber o Bullets: TMJ, GDHP o Cases: Aluminum, Brass Automated Process High Reliability: <1 incorrect for every three 25x20 trays

6 Deconstruction of Components Feeder – subsystem that accepts bullets/cases into the assembly; arranges bullets as necessary for delivery to the sorter Sorter – subsystem that takes input bullets/cases from random orientation to an upright position (base down, nose up) Delivery – subsystem that feeds upright bullets/cases from the sorter to the final tray

7 Design Flow Chart Random/ Aligned Output Queuing Lane(s) Feeder Input Feed Control Uniform, Upright Output Sorter Line/Array Output: 5x1 or 5x5 Sensor & Controller Delivery Final Tray 5x5 Upright Collection Bin & Crane Feeder

8 Inspiration – Case Shaker Available for hand loaders Orients cases upright using center of gravity – COG towards the base causes a moment that keeps cases from falling into the holes upside down

9 Inspiration – Bullet Tipper Used for hand loaders Flips bullets from binary input – Upside down: groove in the floor catches tip and flips bullet over – Right-side up: base passes over the groove

10 Design Concepts– CAD Models

11 Key Components – Bullet Feeder Flipper Drop Tubes

12 Feeder Hopper limits amount of bullets over the holes Rocker arms allow only one bullet to be dropped from each tube at a time Drops 25 bullets at a time

13 Flipper Flips bullets that are upside down in the boxes while ignoring the upright ones Flipping is accomplished by the groove and ramp Works with all 9mm bullets

14 Drop tubes Drops flipped bullets into bullet plate row by row Ensures that bullets are dropped with precision Overcomes offset center to center distances of Flipping lanes

15 Key Components – Case Shaker Shaker Tray Feeder Mechanism

16 Key Components – Shaker Tray Cases slide down ramp Shaking action forces cases to fall into holes at bottom of ramp The case’s center of gravity causes it to fall case head down

17 Key Components – Feeder Mechanism Cases stack up in lanes Friction wheels control feed rate into tray Mechanical switch rotates the wheel, drops one row of cases into tray below

18 Current Progress – Prototyping

19 Optimization Experiment Input Variables (Bullet Flipper) ABullet Orientation -Down +Up BChannel Lane Angle -0° +30° CChannel Grove Depth -0.02" +0.06" Input VariablesReplicates (Success Rate) Treatment ComboABC12345 (1)--- a+-- b-+- ab++- c--+ ac+-+ bc-++ abc+++ Input Variables (Case Shaker) A Vibratory Plate Angle -12° +15° B Vibration Motor Rotational Velocity (rpm) ^k Factorial Statistical Analysis

20 Future Work – 2 nd Semester Module optimization Module integration Development of control systems Overall integrated system testing and debugging

21 Final Deliverables Working Prototypes – Automated process from Feeder to Delivery – Capacity to fill 5x5 plates – 9mm TMJ, GDHP, Brass & Aluminum Cases – High Success Rate: > 99.5% – Additional Features (as possible) Calibers:.45,.40,.38, etc.

22 Budget- Case Feeder ItemQuantityPriceCost Polycarbonate sheet (12"X12")1$4.45 Polycarbonate strip (1.5"X3/64")4$0.53$2.12 Electrical Components1$80.00 Electric Motor2$5.00$10.00 Solenoid Actuator2$45.00$90.00 Various Hardware1$50.00 Construction Materials1$ Various Sensors Total$356.57

23 Budget- Bullet Flipper ItemQuantityPriceCost Various Electronics1$80.00 Electrical Controller1$ Flipper Electric Motor1$ Flipper channels5$1.60$8.00 Chassis Materials1$33.41 Box Material5$2.58$12.90 Pinion Gear1$30.00 Rack Gear1$20.41 Hopper1$16.70 Bullet Chute Tubes25$1.54$38.50 Pinch Plate1$11.00 Drop Plate1$20.58 Rocker2$8.00$16.00 Bottom Plate1$11.00 Tubes2$6.68$13.36 Drop Chute Sheets1$31.75 Coil1$4.36 Total$547.97

24 Total Budget Case Shaker Prototype Budget1$ Bullets Flipper Prototype Budget1$ Poster2$100.00$ Travel1$ Total$1,415.98

25 Questions?


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