US 10,850,343 B2Granted

Spatter analysis method and device

AssigneeHonda Motor Co., Ltd.

InventorsTetsuya Yoshino, Junya Tanabe

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Abstract

A spatter production information storage unit stores spots where spatter has been produced. For the spots where spatter has been produced, a comparison information generation unit acquires weld design information stored in a design information storage unit and weld instruction information stored in an instruction information storage unit, compares both pieces of information, and generates comparison information. An image information output unit outputs the generated comparison information to a display device. The display device displays the comparison information on a screen so as to allow checking by an operator. Hence, it is possible to check, on the screen, comparison information for weld instruction information and weld design information highly likely as a cause for spatter being produced, and to efficiently perform the task of analyzing the causes for spatter being produced.

Claims6

Dependent claims

A computer-implemented spatter analysis method for analyzing spattering caused in spot welding of a workpiece with a welding gun, said spatter analysis method including:

a design information storing step of storing welding design information defined by design information on the workpiece as welding information on the welding gun at a time of welding, wherein said welding design information is stored as data in nonvolatile computer memory;
a teaching information storing step of storing welding teaching information defined by teaching information on a welding robot as welding information on the welding gun at the time of welding, wherein said welding teaching information is stored as data in nonvolatile computer memory;
a step of operating a welding robot with a control unit to perform spot welding on a workpiece based on the stored welding teaching information;
a spatter information storing step of storing information relating to a welding spot at which spattering is caused during operation by the welding robot based on the welding teaching information;
a difference information generating step of generating difference information derived from a comparison of the welding design information and the welding teaching information at the spot where the spattering is caused, wherein the difference information is generated by an analysis processing unit on a computer;
and
a screen display step of displaying the difference information on a screen.

4 more elements

A spatter analysis device for analyzing spattering caused in spot welding of a workpiece with a welding gun, said splatter analysis device including:

a design information storage unit configured to store welding design information defined by design information on the workpiece as welding information on the welding gun at a time of welding, wherein said welding design information is stored as data in nonvolatile computer memory;
a teaching information storage unit configured to store welding teaching information defined by teaching information on a welding robot as welding information on the welding gun at the time of welding, wherein said welding teaching information is stored as data in nonvolatile computer memory;
a control unit operable to control operation of a welding robot in spot welding a workpiece based on the stored welding teaching information;
a spatter information storage unit configured to store information relating to a welding spot at which spattering is caused during operation by the welding robot based on the welding teaching information;
a difference information generating unit configured to generate difference information derived from a comparison between the welding design information and the welding teaching information at the spot where the spattering is caused;
and
a screen display unit configured to display the difference information on a screen.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/555,708Filed 4 Mar 2016
Priority: JP 2015-0448696 Mar 2015
Published: US 2018/0056429 A11 Mar 2018
Granted: 1 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B23K 9/328
Accessories: cleaning of weld torches, i.e. removing weld-spatter; Preventing weld-spatter, e.g. applying anti-adhesives
B23K 9/0953
Monitoring or automatic control of welding parameters: using computing means
B23K 11/11
Spot welding; Stitch welding: spot welding
B23K 11/16
Resistance welding; Severing by resistance heating: taking account of the properties of the material to be welded