Fixturing of Compliant Parts Using A Matrix of Reconfigurable Pins  

Oleh:

Walczyk, Daniel F. ; Longtin, Randy S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 122 no. 4 (Nov. 2000), page 766-772.
Topik: matrix; fixturing; compliant parts; matrix; reconfigurable pins

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Commercially - available reconfigurable fixtures, used for holding compliant sheet metal, composite and plastic parts during secondary machining operations, are extremely expensive and overly - complicated devices. A computer - controlled, reconfigurable fixturing device (RFD) concept for compliant parts, based on a matrix of individually - stoppable pins lowered by a single rigid platen, has been developed as a simple and low - cost design alternative to commercially - available devices. Two different approaches to stopping and clamping individual pins have been investigated: a combination electromagnet assist and gas springs compressed with a toggle mechanism, and a pneumatic clamp. Simple mechanical models have been developed for predicting the stopping and clamping performance of both designs including pin positioning accuracy, vertical load - carrying capacity of a pin, and deflection of a pin subjected to lateral loads. An RFD prototype, consisting of a single pin actuated by a servoed platen, has been designed, built and tested. It has demonstrated the feasibility of this new RFD design.

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