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Generating Motion

Learn how to minimize moving parts in machinery to enhance productivity. Explore pneumatic systems, linear motion, and cylinder mounting techniques for optimal performance.

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Generating Motion

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  1. Generating Motion • Moving a part adds no value (except in packaging)‏ • Moving a tool adds no value unless work is done on part. • So, we want to avoid moving parts or tools any more than necessary

  2. Linear Motion • Linear translation is most common motion • Linear movement can be caused by: • Pneumatic or hydraulic cylinders • Rotary motion converted to linear • Vibratory systems • Electric solenoids • Linear electric motors • Piezoelectric actuators

  3. Pneumatic Systems • Pneumatic power very popular in industry • High force, economical linear motion • Non-flammable, compressible, storable medium • Compact, low heat production actuators • Pneumatics best suited to discrete motion (not proportional)‏

  4. Pneumatic Systems • Ideal Gas Law: PV=mRT • Boyle’s Law: P1V1 = P2V2

  5. Pneumatic System Layout

  6. Air Preparation

  7. Single-Acting Cylinder

  8. Single-Acting Cylinder

  9. Double-Acting Cylinder

  10. Pneumatic Cylinder Mounting • Off-axis loading must be prevented! • Pivoting mounts can eliminate axial loading: • Clevis mount • Trunnion mount • Universal joints • Shaft may rotate unless antirotation model is used

  11. Trunnion Mount

  12. Pneumatic Twin Cylinder

  13. Pneumatic Bellows

  14. Pneumatic Bellows

  15. Pneumatic Rotary Actuators

  16. Pneumatic Rotary Actuators

  17. Pneumatic Schematics

  18. Pneumatic Schematics

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