Difference between revisions of "DEWBOT XVI Climber"

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When the [[DEWBOT XVI Shooter Arm | Shooter Arm]] was under consideration, it was intended that the Climber would be incorporated into this system.  With the Arm abandoned, the Climber became a stand-alone mechanism.
 
When the [[DEWBOT XVI Shooter Arm | Shooter Arm]] was under consideration, it was intended that the Climber would be incorporated into this system.  With the Arm abandoned, the Climber became a stand-alone mechanism.
  
[[image:DB16_Climber-3.jpg|350px|left|thumb|Climber]]The Climber makes up a rectangular frame with the longitudinal elements made of 1½" x 1/16" 6061 Al square tubing and the transverse elements connecting these made from 1¾" x 1/8" 6061 Al U-Channel.  The longitudinal elements contain extendable hooks driven synchronously via leadscrews.  The rear U-Channel is highly relieved and incorporates the leadscrew drive.  This rear U-Channel also terminates in ½" shaft for bearing mount, allowing the entire structure to rotate.   
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==General Description==
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 +
[[image:DB16_Climber-3.jpg|350px|left|thumb|Climber]]The Climber makes up a rectangular frame with the longitudinal elements made of 1½" x 1/16" 6061 Al square tubing and the transverse elements connecting these made from 1¾" x 1/8" 6061 Al U-Channel.  The longitudinal elements contain extendable hooks driven synchronously via leadscrews.  The rear U-Channel is highly relieved and incorporates the leadscrew drive.  This rear U-Channel also terminates in ½" shaft for bearing mount, allowing the entire structure to rotate.  The Climber deploys via this rotation, driven by a pair of 1¼" x 12" stroke pneumatic cylinders.
  
 
DEWBOT's climber deploys pneumatically and extends a pair of hooks via leadscrews.  A shifting gearbox allows fast extension together with the power needed to lift the robot off the playing field.  By using leadscrews, backdriving after game's end is avoided.
 
DEWBOT's climber deploys pneumatically and extends a pair of hooks via leadscrews.  A shifting gearbox allows fast extension together with the power needed to lift the robot off the playing field.  By using leadscrews, backdriving after game's end is avoided.

Revision as of 18:03, 25 February 2020

Deux hanging from practice field switch
Climbing on the Switch is a critical end-game objective. A hanging robot at match end earns 25 points, with 15 additional points if the switch is horizontal (within 8°). In qualification matches, alliances scoring 65 points at the switch receives a Ranking Point. Hanging means fully supported by the switch (not touching the ground). This makes hanging a must-do; something that the robot can accomplish quickly and reliably.

Hanging requirements:

  • Needs to be easy for drive team
  • Must be capable of hanging in switch center
  • Must be capable of hanging on raised area of switch
  • Robot must remain up when disabled
  • Robot needs to be easily removed from switch after match by two students
  • Robot must be removed from field and returned to pit without needing power
  • One motor may be used
  • Climber must remain below 28" height prior to deployment

When the Shooter Arm was under consideration, it was intended that the Climber would be incorporated into this system. With the Arm abandoned, the Climber became a stand-alone mechanism.

General Description

Climber
The Climber makes up a rectangular frame with the longitudinal elements made of 1½" x 1/16" 6061 Al square tubing and the transverse elements connecting these made from 1¾" x 1/8" 6061 Al U-Channel. The longitudinal elements contain extendable hooks driven synchronously via leadscrews. The rear U-Channel is highly relieved and incorporates the leadscrew drive. This rear U-Channel also terminates in ½" shaft for bearing mount, allowing the entire structure to rotate. The Climber deploys via this rotation, driven by a pair of 1¼" x 12" stroke pneumatic cylinders.

DEWBOT's climber deploys pneumatically and extends a pair of hooks via leadscrews. A shifting gearbox allows fast extension together with the power needed to lift the robot off the playing field. By using leadscrews, backdriving after game's end is avoided.