Device and method for correction of geometrical differences of the surfaces of parts to be assembled at the assembly interface

Patent metadata

Field	Value
Publication number	US-2017190124-A1
Application number	US-201615387655-A
Country	US
Kind code	A1
Filing date	Dec 22, 2016
Priority date	Dec 30, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

A device to correct geometrical differences of surfaces of parts to be assembled at the interface of the assembly. A measurer to acquire data by measuring the geometry of the assembly surfaces of two parts to be assembled to each other with their respective assembly surfaces facing. A simulator configured to simulate the assembly of the parts and to determine from the acquired data at each measured point of a sampling of the interface a thickness of the void resulting from the geometrical discrepancies between the assembly surfaces. An additive fabricator to receive from the simulator data representative of the thicknesses of the voids resulting from the geometrical discrepancies between the assembly surfaces. The additive fabricator configured to deposit material on the assembly surface of at least one of the parts to at least partly fill the void resulting from the geometrical discrepancies between the assembly surfaces.

First claim

1 - 9 . (canceled)

10 . A correction device to correct geometrical differences of surfaces of parts to be assembled at an interface of an assembly, comprising:
a measurer to measure geometries of assembly surfaces of two parts to be assembled to each other with their respective assembly surfaces facing; a simulator, receiving data representative of the geometries of the assembly surfaces, configured to simulate an assembly of the two parts, to determine from the data, at each measured point of a sampling of the interface, thicknesses of voids resulting from geometrical discrepancies between the assembly surfaces of the two parts; and an additive fabricator, receiving data representative of the thicknesses of the voids resulting from the geometrical discrepancies between the assembly surfaces of the two parts, to deposit a material on the assembly surface of at least one of the two parts to at least partly fill the voids resulting from the geometrical discrepancies between the assembly surfaces of the two parts.

11 . The correction device according to claim 10 , wherein the additive fabricator comprises a depositor to deposit the material fastened to a bearer structure configured to move the correction device.

12 . The correction device according to claim 11 , wherein the depositor comprises a head to deposit the material fastened to a support structure mounted on the bearer structure and configured to move the head relative to the bearer structure.

13 . The correction device according to claim 12 , wherein the depositor comprises a controller to control the head relative to one of the two parts as a function of the data representative of the thicknesses of the voids resulting from the geometrical discrepancies between the assembly surfaces.

14 . Method of correcting geometrical differences of surfaces of parts to be assembled at an interface of the assembly, comprising the steps of:
measuring a geometry of an assembly surface of each part to be assembled; simulating an assembly of the parts in accordance with data representative of the measured geometries of the assembly surfaces to calculate geometrical discrepancies from a sampling of measurement points between the assembly surfaces at the interface of two parts and to determine characteristics of voids existing between the assembly surfaces of the two parts from the geometrical discrepancies; and before the two parts are assembled, depositing a material on the assembly surface of at least one of the two parts to at least partly to fill the voids between the assembly surfaces resulting from the geometrical discrepancies for the two parts to be assembled.

15 . The correction method according to claim 14 , wherein the simulation step comprises a step of simulating a positioning of the two parts in accordance with the data representative of the measured geometries of the assembly surfaces, the data corresponds to the measured geometry of at least one known and identifiable singular point of a structure of each assembly surface to enable a determination of a position of simulated assembly surfaces relative to one another.

16 . The correction method according to claim 15 , wherein the simulation step comprises a step of simulating a contact of the two parts in accordance with the data representative of the measured geometries of the assembly surfaces, the contact is simulated between the simulated assembly surfaces by causing them to bear on one another without interpenetration of the two parts.

17 . The correction method according to claim 14 , wherein the simulation step accounts for deformations of the two parts by predetermined forces introduced during the assembly of the two parts.

18 . The correction method according to claim 14 , wherein the simulation step comprises a step of discretizing the voids resulting from the geometrical discrepancies between the assembly surfaces of the two parts into a predetermined number of layers of material to be deposited.

Assignees

• Airbus Group Sas

Inventors

• Douilly Marc
• Rabate Patrice
• Falgarone Hugo

Classifications

• G05B2219/40613

  Camera, laser scanner on end effector, hand eye manipulator, local · CPC title

• G05B2219/35062

  Derive mating, complementary, mirror part from computer model data · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29C70/84

  by moulding material on preformed parts to be joined {(joining plastic parts by moulding B29C65/70)} · CPC title

• B23P19/10 Primary

  Aligning parts to be fitted together · CPC title