Browse Prior Art Database

Force Measuring Device for Monitoring Press-Fit Operation

IP.com Disclosure Number: IPCOM000041172D
Original Publication Date: 1987-Nov-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Berry, O: AUTHOR [+4]

Abstract

A force measuring device 1 which ensures the proper fitting of a press-fitted article is shown in the Figure.

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This is the abbreviated version, containing approximately 100% of the total text.

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Force Measuring Device for Monitoring Press-Fit Operation

A force measuring device 1 which ensures the proper fitting of a press-fitted article is shown in the Figure.

The force measuring device includes a platform 2 capable of holding a load. The platform is attached to a means for measuring force 3, such as a spring balance, scale, or other transducer. It provides a signal in response to the amount of force F exerted on the platform. The means for measuring force may also have a gauge 3A for visually representing the force measured.

In operation, a male piece 4 is placed on the platform of the force measuring device. A female piece 5 is then forced down on the male piece 4 by means for applying force, such as a press 6 with a force F to press fit the male piece 4 and female piece 5 together. The amount of force necessary to fit the pieces together is monitored. If the force is excessive, it indicates an improper interference between the two parts, suggesting that the parts are outside the specified tolerances. The acceptable force range is determined by sampling known good parts and the range of force necessary to press fit them together. This range of desired force can then be marked on the gauge 3A so that a visual check can be quickly made. Alternatively, the process may be automated.

Disclosed anonymously.

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