Interface shim fixture, and method using an interface shim fixture

Patent metadata

Field	Value
Publication number	US-11548237-B2
Application number	US-201916666620-A
Country	US
Kind code	B2
Filing date	Oct 29, 2019
Priority date	Oct 29, 2019
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A method for making a connection between a pair of objects includes using a fixture to hold in place shims used to control the gap thickness between the objects. The gap may be subsequently filled with adhesive that is then cured. The fixture may be a flexible piece of material that is able to withstand the cure environment, for example being able to withstand heat used to cure the adhesive. The fixture may facilitate maintaining the proper gap by holding the shims in their proper places and orientation until the adhesive is cured and the shims are removed. The use of the fixture may improve the uniformity of the gap at less effort, and may reduce defects in the adhesive layer, for example by facilitating removal of the shims without disturbing or damaging the adhesive, such as by pulling the shims straight out of their locations in the gap.

First claim

What is claimed is:

1. A method of making a connection between a pair of objects, the method of comprising:
mechanically coupling shims to a fixture;
placing the fixture and the shims such that the shims but not the fixture rest on a mounting surface of one of the objects; and
placing the other of the objects over the mounting surface, with the shims between the objects, and with the fixture not in direct contact with the objects.

2. The method of claim 1 , wherein the mechanically coupling the shims to the fixture includes attaching the shims to the fixture.

3. The method of claim 2 , wherein the attaching the shims to the fixture includes taping the shims onto the fixture.

4. The method of claim 3 , wherein the taping the shims onto the fixture includes taping the shims onto a major surface of the fixture.

5. The method of claim 1 ,
wherein the fixture is a planar flat fixture; and
wherein the mechanically coupling the shims to the flat fixture includes planarly orienting the shims along the planar flat fixture.

6. The method of claim 1 , wherein the placing the other of the objects over the mounting surface includes creating a gap between the objects, with a height and/or centration of the gap determined by a thickness of the shims.

7. The method of claim 6 , further comprising, after the placing of the other of the objects over the mounting surface, mechanically coupling the objects together by placing a joining material in the gap.

8. The method of claim 7 , wherein the placing the joining material includes placing an adhesive in the gap.

9. The method of claim 8 , wherein the placing the adhesive includes dispensing the adhesive into the gap.

10. The method of claim 8 , further comprising curing the adhesive.

11. The method of claim 10 , wherein the curing the adhesive includes heat curing the adhesive.

12. The method of claim 11 , wherein material for the fixture is able to withstanding heating from the heat curing without losing integrity.

13. The method of claim 7 , wherein the placing includes soldering together the objects by placing solder in the gap.

14. The method of claim 7 , further comprising, after the mechanically coupling of the objects together, removing the shims from the gap.

15. The method of claim 14 , wherein the removing the shims from the gap includes pulling the shims out of the gap.

16. The method of claim 15 , wherein the pulling the shims out of the gap includes pulling the shims out perpendicular to the gap.

17. The method of claim 14 , wherein the removing the shims includes removing the shims while the shims are still mechanically coupled to the fixture.

18. The method of claim 17 , wherein the removing the shims includes deforming the fixture.

19. The method of claim 1 , wherein the pair of objects are an optic, and a housing for receiving the optic.

Assignees

• Raytheon Co

Inventors

• Fribbs Chance
• Thelakkaden Melby
• Newman Derek M

Classifications

• B29C65/4835

  Heat curing adhesives · CPC title

• B29C66/005

  Detaching the article from the joining tool · CPC title

• B29C65/7826 Primary

  said distance pieces being non-integral with the parts to be joined, e.g. particles · CPC title

• F16B11/006 Primary

  by gluing (gluing of plastics material B29C65/48) · CPC title

• B29C66/11

  Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section (B29C66/12 and subgroups take precedence) · CPC title