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Assembly Line Simulation With Multi-Robot Control

Assembly Line Simulation With Multi-Robot Control . Peter McHugh, Thomas Zack, Kyle Fecteau Advisor: Dr. Carlos Luck . Overview. Introduction to the Robots Staubli , Scara , and Microbot Tennis Ball Assembly Line Mechanical Designs and Modifications Stäubli Gripper Pallet

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Assembly Line Simulation With Multi-Robot Control

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  1. Assembly Line Simulation With Multi-Robot Control Peter McHugh, Thomas Zack, Kyle Fecteau Advisor: Dr. Carlos Luck

  2. Overview • Introduction to the Robots • Staubli, Scara, and Microbot • Tennis Ball Assembly Line • Mechanical Designs and Modifications • Stäubli Gripper • Pallet • SCARA Gripper • Rotary • Lid Nest • Programming • Work That Can Be Done Next Year

  3. Stäubli Scara

  4. Microbot • Establish connection through serial port • Accepts string commands through serial port, if command is executed outputs a 1 to user. • Turntable Accessory

  5. 2009/2010 Robotics Research Group Goals • Create a practical use of the Staubli and Scara using the 2008/2009 Research Group multi-robot control programs Tennis Ball Assembly Line • Design and Produce: • Gripper for Stäubli and Scara • Pallet • Turntable Attachment • Lid Nest • Write Program

  6. Tennis Ball Assembly Line

  7. Mechanical Design of Stäubli Gripper • Mechanically operate using a pneumatic cylinder • Pick up tennis ball tube • Pick up tennis ball • Withstand a 10.5 lbf generated from the 60psi

  8. Mechanical Design of Stäubli Gripper

  9. Mechanical Design of Stäubli Gripper

  10. Scara Gripper

  11. Scara Gripper • Vaccum Pump that is connected from the solenoid control valve to the gripper tool suction cup. • (2) Rollers on each side of the suction cup. • The suction cup has enough compression when the lid is being placed on the tube that the rollers can put pressure against the top of the lid. The gripper rotates 180° clockwise and counterclockwise to seal the lid.

  12. Mechanical Design of Pallet

  13. Design for Turntable

  14. Design of Lid Nest • Capable of securing 3 lids • Allow access to SCARA vacuum gripper • Be removable

  15. Robot Control Programming • Robots control consists of Staubli Adept controller, Scara Adept controller, and the host computer.

  16. Both the Stäubli and Scara use V+ programming to control the movements of the robots. Adept Programming .PROGRAM placelid1() TOOL TRANS(0,0,100,0,0,0) CALL tennisballhome() BREAK SET a = TRANS(370,-151,56,0,180,0) BREAK APPRO a, 50 BREAK CALL close()

  17. RCML Programming • Robot Control Markup Language • Created language that uses XML programs to control the robots in the workspace from a host computer. • A <step> command is used to send instruction to the respective serial port.

  18. Sample RCML Code <configuration> <conn variable= "staubli" connection= "COM2" interpreter="api.AdeptInterpreter"/> <conn variable= "scara" connection= "COM4" interpreter="api.AdeptInterpreter"/> <conn variable= "microbot" connection= "COM5" interpreter="api.MicrobotInterpreter"/> </configuration> <execution timeout= "30000"> <for count= "infinity"> <set> <step>scara.wait1</step> <step>scara.wait2</step> <sequence> <step>staubli.tubetotrack</step> <step>staubli.pickrotary</step> <step>Microbot.reset()</step> <step>Microbot.read()</step> <step>microbot.xx1(100,0,0,0,0,0,0,-272,0,0)</step>

  19. Java Programming • Java is used as the host PC programming language. • Existing code interprets the command set by the RCML program and distributes a string to the serial port by use of the AdeptInterpreter and MicrobotInterpreter.

  20. Java Programming • The XX1 microbot was initialized in the MicrobotInterpreter to control the rotary table: XX1(speed, m1, m2, m3, m4, m5, m6, t1, t2, out)

  21. Work That Can Be Done • Java Program For I/O Control • Sensor for Microbot rotary table • Increase Efficiency • Simultaneous movements of the robots • Add more pallets • Design of way to load rotary table or system to supply continuous operation

  22. Questions?

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