By Lawrence J. Kamm
A winning engineer and entrepreneur stocks his secrets and techniques for generating continually stronger designs at colossal fee discounts. minimal constraint layout (MinCD) is a brand new systematic layout technique that yields significant fee mark downs and tremendously improves the reliability of synthetic mechanisms. For the 1st time, this sensible reference presents the "how-to-do-it" details you must placed this powerful Read more...
summary: A profitable engineer and entrepreneur stocks his secrets and techniques for generating constantly stronger designs at sizeable fee reductions. minimal constraint layout (MinCD) is a brand new systematic layout process that yields significant rate discounts and tremendously improves the reliability of synthetic mechanisms. For the 1st time, this useful reference offers the "how-to-do-it" details you must placed this robust layout software to paintings immediately -- it doesn't matter what your point of teaching or event. established upon the author's broad adventure in product layout, this well timed booklet essentially explains the benefits of MinCD and tells you the way to create larger, extra least expensive product designs utilizing on hand advertisement elements. jam-packed with unique rules, layout suggestions, useful examples, and references - together with directories of part owners - this designated mixture of useful and theoretical wisdom will revolutionize how you paintings
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Additional info for Designing cost-efficient mechanisms : minimum constraint design, designing with commercial components, and topics in design engineering
Example text
Where rebound is acceptable, a simple rubber bumper is used. 7 Separation of sliding parts. In linear and rotary sliding bearings, lubricating-fluid films are forced between the parts to prevent abrasion. Both liquid and gas films are used. Fluid is pumped into the Kinds of Constraint 45 space between the hard parts either by viscous drag (hydrodynamic bearings) or by an external pump (hydrostatic bearings). The largest thrust bearings in the world are the Kingsbury type, in which a number of tilting segments generate wedge-shaped hydrodynamic films under the segments.
11). 11 Tricycles. Tricycles are tripods with wheels at their feet. Small ones are used as children's toys, larger ones in motorized adult toys, larger ones in three-wheeled cars, and medium to much larger ones as aircraft landing gear. In all these cases there is a controllable yaw constraint of one wheel for steering. 12 Trailers. The trailer support system most commonly used is a tripod consisting of two wheels on a rear axle and a single-point trailer hitch at the tractor. Small personal trailers use a ball-andsocket hitch to prevent torque constraint at the hitch.
A robot gripper is an automatic fixture and benefits from MinCD just as a jig does. Furthermore, the robot gripper must grip the part during transfer from the originating workholder to the receiving workholder. During the transfer the part may be temporarily gripped by both a workholder and the robot gripper: a severe case of overconstraint. 11 Bell striker log. , overconstraint) during these transfers. These freedoms may either be loose or be urged to a definite position by springs or otherwise.