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Multi-Size Chip and Billet Transport

IP.com Disclosure Number: IPCOM000039197D
Original Publication Date: 1987-May-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Pierson, MV: AUTHOR

Abstract

This article describes a handling mechanism that moves a chip, or billet, from an air atmosphere through seals into a pressurized nitrogen chamber and then returns to air. A chip select mechanism (not shown) rotates the extreme end of chip shaft 2, in steps, to locate the machined recesses 4 accordingly. The selected recess 4 is at the 12 o'clock position with the chip or billet lying horizontally and captured in the confines of the machined recess. The very end of the chip shaft 2 is detented 1 in eight positions to maintain positional accuracy while out of the chip select mechanism. (Image Omitted) When the proper chip or billet size has been selected and all other parameters have been met, the chip shaft will start moving backwards in an axial linear fashion. As the end of the shaft continues back, a chip door 8 (Fig.

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Multi-Size Chip and Billet Transport

This article describes a handling mechanism that moves a chip, or billet, from an air atmosphere through seals into a pressurized nitrogen chamber and then returns to air. A chip select mechanism (not shown) rotates the extreme end of chip shaft 2, in steps, to locate the machined recesses 4 accordingly. The selected recess 4 is at the 12 o'clock position with the chip or billet lying horizontally and captured in the confines of the machined recess. The very end of the chip shaft 2 is detented 1 in eight positions to maintain positional accuracy while out of the chip select mechanism.

(Image Omitted)

When the proper chip or billet size has been selected and all other parameters have been met, the chip shaft will start moving backwards in an axial linear fashion. As the end of the shaft continues back, a chip door 8 (Fig. 3) will be cammed closed by means of two torsion springs 9 and 10. An adhesive backed foam seal 11 will prevent nitrogen leakage as the door 8 closes. A shaft seal 13 prevents nitrogen leakage when the door is open. That seal will now be broken as the chip shaft 2 moves back wards. As seen in Fig. 2, after a linear motion 1-2 is made in the linear portion of the cam slot 14, and all seals have been cleared, the mechanism enters the rotary portion 2-3-4 of the cam slot with acceleration being much the same as a geneva mechanism. Deceleration occurs after 45o of travel has been made. The mechanism then travels in another linear portion 4-5 for a short distance until it comes to a stop, aligned with a vacuum pick-up device that will either remove or add...