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Fixture for Bonding Magnets to Coil Shells

IP.com Disclosure Number: IPCOM000052614D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 37K

Publishing Venue

IBM

Related People

Hansen, RL: AUTHOR [+2]

Abstract

This tooling fixture locates two planar magnets a specific distance apart and parallel to each other, without dependence on the manufacturing tolerances of a third part to be bonded between them.

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Fixture for Bonding Magnets to Coil Shells

This tooling fixture locates two planar magnets a specific distance apart and parallel to each other, without dependence on the manufacturing tolerances of a third part to be bonded between them.

As an example of pertinent structure, a solenoid coil or like component is arranged for later accepting another component within the coil and is contained in a non-magnetic shell for subsequent mounting in apparatus wherein the coil is subjected to a precisely predetermined magnetic field obtained from a pair of planar magnets to be bonded to the shell.

This bonding fixture (Figs. 1 and 2) comprises two identical assemblies 10 each having a body member 12 and a cover member 14. The body member 12 is made of aluminum or other non-magnetic material. Spacers 16 are arranged to leave a precisely predetermined space between the members, and pins 18 and pin holes 18' provide precise locating means. Lands 20 are arranged for precise location of the planar magnets. The interior of the body members is modified to leave a cavity 22 beneath the lands 20 to receive four magnets 24 (Fig. 3) for holding the planar magnets in place during the bonding process. The planar magnets are positioned within the lands and then spaced precisely parallel by use of the permanent magnets 24.

The fixture is assembled in a jig 26 and held firmly by a spring-loaded arm 28 (Fig. 4). The shell or like component, shown roughly as a blank 30, is inserted between...