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Crc Press - Mechanical Engineering Handbook - Robotics 1 Part 2 ppsx

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14 -10 Section 14 © 1999 by CRC Press LLC Drive Types of Commerical Robots The vast majority of commerical industrial robots uses electric servo motor drives with speed-reducting transmissions. Both AC and DC motors are popular. Some servo hydraulic articulated arm robots are available now for painting applications. It is rare to find robots with servo pneumatic drive axes. All types of mechanical transmissions are used, but the tendency is toward low and zero backlash-type drives. Some robots use direct drive methods to eliminate the amplification of inertia and mechanical backlash associated with other drives. The first axis of the AdeptOne and AdeptThree Type I SCARA (a) (b) FIGURE 14.2.4 Cartesian robots. (a) Four-axis gantry robot used for palletizing boxes (courtesy of C&D Robotics, Inc.); (b) three-axis gantry for palletizing (courtesy of C&D Robotics, Inc.); (c) three-axis robot constructed from modular single-axis motion modules (courtesy of Adept Technologies, Inc.). . 14 -1 0 Section 14 © 19 99 by CRC Press LLC Drive Types of Commerical Robots The vast majority of commerical industrial robots uses electric servo motor drives with speed-reducting transmissions FIGURE 14 .2. 4 Cartesian robots. (a) Four-axis gantry robot used for palletizing boxes (courtesy of C&D Robotics, Inc.); (b) three-axis gantry for palletizing (courtesy of C&D Robotics, . All types of mechanical transmissions are used, but the tendency is toward low and zero backlash-type drives. Some robots use direct drive methods to eliminate the amplification of inertia and mechanical backlash

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