Optimal design techniques for kinematic couplings

Hale, Layton C.; Slocum, Alexander H.

doi:10.1016/s0141-6359(00)00066-0

Cited by 75 publications

(39 citation statements)

References 9 publications

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“…When analyzing kinematic couplings, contact forces and displacements may be assumed normal to the ball-groove contact and modeled with "spring like" Hertzian point contacts [2,[8][9][10]. When analyzing arc contacts, the direction of contact forces may not be assumed and the contacts cannot be modeled as point contacts.…”

Section: Analysis Methodsmentioning

confidence: 99%

Design of quasi-kinematic couplings

Culpepper

2004

Precision Engineering

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Section: Analysis Methodsmentioning

confidence: 99%

Design of quasi-kinematic couplings

Culpepper

2004

Precision Engineering

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“…This makes performance predictable [10,11,12] and helps to reduce design and manufacturing costs. On the other hand, contact stresses are often very high and no lubrication layer remains between the elements that are in point contact.…”

Section: Kinematic Couplingsmentioning

confidence: 99%

Kinematic couplings: A review of design principles and applications

Slocum

2010

International Journal of Machine Tools and Manufacture

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a b s t r a c tFrom the humble three-legged milking stool to a SEMI standard wafer pod location to numerous submicron fixturing applications in instruments and machines, exactly constrained mechanisms provide precision, robustness, and certainty of location and design. Kinematic couplings exactly constrain six degrees of freedom between two parts and hence closed-form equations can be written to describe the structural performance of the coupling. Hertz contact theory can also be used to design the contact interface so very high stiffness and load capacity can also be achieved. Potential applications such as mechanical/electrical couplings for batteries could enable electric vehicles to rapidly exchange battery packs.

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“…(29) as an estimate of repeatability [23]. Hale derived the estimate as if the coupling's compliance in all directions is equal to a single Hertzian contact carrying a load P and having a relative radius, R, and elastic modulus, E [24]:…”

Section: Precision Of Kinematically Coupled Palletsmentioning

confidence: 99%

Precisely positioning pallets in multi-station assembly systems

Vallance

Morgan

Slocum

2004

Precision Engineering

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In multi-station assembly systems, common for mass-customization manufacturing strategies, the product being assembled is held in a fixture attached to a pallet, and the pallet is conveyed between workstations. In high-precision assembly systems, variation in the position of the pallet is one of the largest sources of variation within the error budget, reducing quality and yields. Conventional approaches to locating pallets use pins and bushings, and a method for predicting their repeatability is presented. This paper also presents an exact constraint approach using a split-groove kinematic coupling, which reduces variation in pallet location by an order of magnitude.

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Optimal design techniques for kinematic couplings

Cited by 75 publications

References 9 publications

Design of quasi-kinematic couplings

Design of quasi-kinematic couplings

Kinematic couplings: A review of design principles and applications

Precisely positioning pallets in multi-station assembly systems

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