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Browse Prior Art Database

Centering Jaw Surface Mounted Components With Bent Lead Detection Capability

IP.com Disclosure Number: IPCOM000062723D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Yu, S: AUTHOR

Abstract

The figure illustrates a device to center surface mounted component (SMC) leads to match pads on a Printed Circuit Board (PCB).

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Centering Jaw Surface Mounted Components With Bent Lead Detection Capability

The figure illustrates a device to center surface mounted component (SMC) leads to match pads on a Printed Circuit Board (PCB).

The Precision SMC Centering Device has comb shaped and precisely made jaws 10 with non-abrasive surface. During the centering process, the jaws close and center the component by inserting fingers 11 into the spacings between leads. Any tolerance build up by each individual lead can be averaged to achieve the best fit to the pad pattern on the PCB. The fingers 11 are tapered at tip and widen gradually at bottom to provide for tolerance. If the lead is slightly bent, the fingers 11 still get into the space between the leads and straighten the bent lead. If the component lead is bent significantly, the finger 11 would not be able to get into the space between leads. A sensor (not shown) detects that the jaw 10 with comb shaped fingers 11 has not travelled the distance in the range as specified in the program. The placement machine receives the feedback from the sensor and rejects the component as a defec component with bent leads before placing the component on the PCB.

Disclosed anonymously.

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