Method for assembling at least two parts by means of main and secondary definitive connections and assembly obtained using this method

Patent metadata

Field	Value
Publication number	US-10995782-B2
Application number	US-201916697730-A
Country	US
Kind code	B2
Filing date	Nov 27, 2019
Priority date	Dec 14, 2018
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A method for assembling at least two parts, connected by main and secondary definitive connections arranged in predetermined positions, includes: secondary definitive connections each housed in secondary definitive holes passing through the parts to be assembled, made independently of one another before the parts are assembled, main definitive connections each housed in main definitive holes passing through the parts to be assembled, made during the same operation while the parts are held in place by the secondary definitive connections.

First claim

The invention claimed is:

1. A method for assembling at least two parts, connected by definitive connections arranged in predetermined positions, the method comprising:
positioning the at least two parts to be assembled;
putting in place secondary definitive connections that are each positioned in a location corresponding to one of the predetermined positions, each of said definitive connections being housed in secondary definitive holes passing through the at least two parts to be assembled, made independently of one another before the at least two parts are assembled, wherein the number of secondary definitive connections and the locations thereof is determined in such a way that the at least two parts to be assembled do not become deformed and remain pressed against one another during assembly; and
putting in place main definitive connections that are each positioned in a location corresponding to one of the predetermined positions not occupied by one of the secondary definitive connections in such a way that all of the determined positions are occupied by a main definitive connection or a secondary definitive connection, wherein each of the main definitive connections is housed in main definitive holes passing through the parts to be assembled, made during the same operation while the at least two parts are held in place by the secondary definitive connections,
wherein each main definitive connection comprises a shaft with a diameter determined as a function of the diameters of the main definitive holes in such a way as to obtain fitting with a clearance, with an undefined clearance or with interference between the shaft of the main definitive connection and the main definitive holes, and
wherein each secondary definitive connection comprises a shaft with a diameter which is smaller than the diameters of the secondary definitive holes in such a way as to create a clearance between the shaft of the secondary definitive connection and the secondary definitive holes to allow insertion of each secondary definitive connection in the secondary definitive holes even if the secondary definitive holes are not perfectly aligned.

2. The assembly method according to claim 1 , wherein, for at least one of the secondary definitive connections, the diameters of the secondary definitive holes are equal to the diameters of the main definitive holes, and
wherein the shaft of the secondary definitive connection has a diameter which is smaller than the diameter of the shafts of the main definitive connections.

3. The assembly method according to claim 1 , wherein, for at least one of the secondary definitive connections, the shaft of the secondary definitive connection has a diameter equal to or greater than the diameter of the shafts of the main definitive connections, and
wherein the diameters of the secondary definitive holes are greater than the diameters of the main definitive holes.

4. The assembly method according to claim 1 , wherein, for at least one of the secondary definitive connections, at least one of the secondary definitive holes has an open end shaped to match the shape of the secondary definitive connection.

5. The assembly method according to claim 1 , wherein at least one of the at least two parts is reinforced in the vicinity of at least one secondary definitive connection.

6. A method for assembling at least two parts, connected by definitive connections arranged in predetermined positions, the method comprising:
positioning the at least two parts to be assembled;
putting in place secondary definitive connections that are each positioned in a location corresponding to one of the predetermined positions, each of said definitive connections being housed in secondary definitive holes passing through the at least two parts to be assembled, made independently of one another before the at least two parts are assembled, wherein the number of secondary definitive connections and the locations thereof is determined in such a way that the at least two parts to be assembled do not become deformed and remain pressed against one another during assembly; and
putting in place main definitive connections that are each positioned in a location corresponding to one of the predetermined positions not occupied by one of the secondary definitive connections in such a way that all of the determined positions are occupied by a main definitive connection or a secondary definitive connection, wherein each of the main definitive connections is housed in main definitive holes passing through the parts to be assembled, made during the same operation while the at least two parts are held in place by the secondary definitive connections,
wherein at least one of the secondary definitive connections is a screwed connection with a view to gradually tightening the various secondary definitive connections so as to gradually correct the alignment of the secondary definitive holes.

7. The assembly method according to claim 6 , wherein the secondary definitive connections are positioned in at least one installation zone corresponding to a zone where the assembly is subjected to lower stresses.

8. A method for assembling at least two parts, connected by definitive connections arranged in predetermined positions, the method comprising:
positioning the at least two parts to be assembled;
putting in place secondary definitive connections that are each positioned in a location corresponding to one of the predetermined positions, each of said definitive connections being housed in secondary definitive holes passing through the at least two parts to be assembled, made independently of one another before the at least two parts are assembled, wherein the number of secondary definitive connections and the locations thereof is determined in such a way that the at least two parts to be assembled do not become deformed and remain pressed against one another during assembly; and
putting in place main definitive connections that are each positioned in a location corresponding to one of the predetermined positions not occupied by one of the secondary definitive connections in such a way that all of the determined positions are occupied by a main definitive connection or a secondary definitive connection, wherein each of the main definitive connections is housed in main definitive holes passing through the parts to be assembled, made during the same operation while the at least two parts are held in place by the secondary definitive connections,
wherein, for at least one secondary definitive connection, a spacing between the secondary definitive connection and an adjacent main definitive connection is smaller than a spacing between two adjacent main definitive connections.

Assignees

• Airbus Operations Sas
• Airbus Operations Gmbh

Inventors

• Bouriquet Jacques
• Brito Maur Cristobal

Classifications

• Y10T29/49943

  Riveting · CPC title

• Y10T29/49895

  Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"] · CPC title

• B23P19/12

  Alignment of parts for insertion into bores · CPC title

• Y10T29/49963

  Threaded fastener · CPC title

• B21J15/02

  Riveting procedures · CPC title