EP3870392A1 - Procede d'assemblage de capot de vehicule automobile sur une ligne d'assemblage avec un systeme de vision artificielle - Google Patents
Procede d'assemblage de capot de vehicule automobile sur une ligne d'assemblage avec un systeme de vision artificielleInfo
- Publication number
- EP3870392A1 EP3870392A1 EP19801942.4A EP19801942A EP3870392A1 EP 3870392 A1 EP3870392 A1 EP 3870392A1 EP 19801942 A EP19801942 A EP 19801942A EP 3870392 A1 EP3870392 A1 EP 3870392A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover
- assembly line
- hood
- positioning
- motor vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with program control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/06—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being doors, windows, openable roofs, lids, bonnets, or weather strips or seals therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
Definitions
- the present invention claims priority from French application 1859899 filed on October 26, 2018 whose content (text, drawings and claims) is here incorporated by reference.
- the invention relates to the field of motor vehicles, more particularly to the assembly of motor vehicle hoods.
- the assembly of a hood on a motor vehicle body is generally done on an assembly line.
- the box is moved on the assembly line by means of a conveyor.
- Two operators have a cover positioning template on the body and then position the cover manually on the body using the template. The two operators then screw on the cover and remove the template.
- This process requires two operators and manual assembly, which makes the assembly of a hood on a motor vehicle body complex and time-consuming.
- the published patent document WO 2017/103364 A1 discloses a station of an assembly line for mounting a plurality of components on a part.
- the assembly line post is equipped with robotic means ensuring the simultaneous gripping of a plurality of components and the mounting of the components on said part.
- This document does not however relate to the mounting of a motor vehicle hood on an assembly line.
- the object of the invention is to overcome at least one of the drawbacks of the above-mentioned state of the art. More particularly, the invention aims to provide a solution simplifying the assembly of a hood on a motor vehicle body on an assembly line. The invention also aims at a simple, economical and robust solution.
- the subject of the invention is a method of assembling a hood on a motor vehicle body, on a station of an assembly line, said method comprising the following steps: positioning the hood on the body, in open position; engagement and tightening of hood fixing nuts to the body; lowering the hood to a closed position; remarkable in that the stage of the hood is positioned exclusively by an industrial robot while the body is stopped on the assembly line.
- said method comprises the prior step: stopping and positioning of the body.
- the step of stopping and positioning the box comprises lateral guidance of a carriage supporting the box, by mechanical guide means.
- the step of engaging and tightening the fixing nuts is carried out exclusively by at least one collaborative robot while the body is still stopped on the assembly line.
- the step of engaging and tightening fixing nuts comprises loading nuts, from a supply system, by a screwdriver on at least one collaborative robot.
- the step of lowering the cover is carried out by one or one of the collaborative robots while the body is still at a standstill on the assembly line.
- the method comprises the additional step, between the step of positioning the cover and the step of lowering the cover: placing at least one stop of the cover on the body cover in closed state by at least one collaborative robot equipped with a gripper.
- the step of positioning at least one stop on the body is carried out before the step of engaging and tightening fixing nuts.
- the invention also relates to a hood assembly line on a motor vehicle body, comprising at least one magnetic guided carriage, capable of supporting the body; and an industrial robot; remarkable in that the industrial robot comprises a hand configured for gripping a cover, the assembly line being configured to carry out the method according to the invention.
- said line further comprises at least one collaborative robot; a hood stop storage area; and a vision device configured to determine the positions of the stops on the storage area; said zone, said device and said at least one collaborative robot being configured to carry out the method according to one of the embodiments set out above.
- the measures of the invention are advantageous in that the whole process of assembling the hood on a body of a motor vehicle is completely automated in a production line.
- the installation of the cover is carried out exclusively by an industrial robot and thus makes it possible to facilitate the assembly of the cover.
- the screwing of the cover is also automated and carried out exclusively by one or more collaborative robots.
- the invention thus makes it possible to dispense with operators for the installation and screwing of the cover, reducing the risks of assembly faults of the cover such as forgetting to screw.
- the invention also proposes the use of a collaborative robot for the automated positioning of stops on the vehicle body. The invention thus saves time and costs for mounting the hood on a motor vehicle body.
- FIG. 1 shows a top view of a hood mounting station on a motor vehicle assembly line, according to the invention
- FIG. 2 shows a perspective view of the hood mounting station shown in Figure 1;
- FIG. 3 shows a side view of a motor vehicle body on a conveyor of the assembly station shown in Figures 1 and 2;
- FIG. 4 shows a portion of a collaborative robot from the assembly station equipped with gripping grippers
- FIG. 5 represents the motor vehicle body on which a cover is mounted.
- Figures 1 and 2 show respectively top and perspective views of a station 2 of a hood assembly line 4 on a body 6 of a motor vehicle. There will also be described a method of assembling a hood on a motor vehicle body, at the station of the assembly line.
- the assembly line station 2 comprises at least one carriage 8 with magnetic guidance, capable of supporting the body.
- the station also includes an industrial robot 10.
- the carriage 8 is advantageously an automatically guided vehicle also known by the acronym AGV (Automatic Guided Vehicle).
- AGV Automatic Guided Vehicle
- the carriage 8 is guided along a magnetic strip on the ground.
- the carriage 8 is configured to transport the body independently, from one station of the assembly line to another.
- the station has two safety light curtains (not shown) for entering and leaving the cash register, respectively, within the station.
- the stop and positioning step of the body 6 comprises a lateral guide of the carriage 8 supporting the body 6, by mechanical guide means.
- FIG. 3 illustrates a profile and front view of the body 6 on the carriage 8 where the mechanical guide means 12 are also shown.
- the mechanical guide means 12 can comprise a re-jogging system and make it possible to provide a correct positioning of the body 6 of the motor vehicle along a direction of movement of the body and maintain said body in said position before the step of positioning the cover on the body.
- the cover 4 is placed in position on the body, in the open position, this step being carried out exclusively by the industrial robot 10.
- the cover 4 in the open position is visible in Figure 2.
- the industrial robot 10 comprises a hand 14 configured for gripping the cover 4.
- the station may include a supply belt 16 of covers 4 assembled.
- the industrial robot 10 is configured to take a cover 4 from the supply belt 16 and position it on the body 6, the latter being stopped on the assembly line.
- the station 2 comprises at least one collaborative robot 18.
- At least one collaborative robot 18.1 is equipped with at least one screwdriver.
- the station includes a supply system 20 for nuts.
- the method comprises a step of engaging and tightening nuts for fixing the cover 4 to the body 6, after the step of positioning the cover 4 on the body 6 in the open position.
- the or each collaborative robot 18.1 comprises two slave screwdrivers.
- the step of engaging and tightening fixing nuts comprises loading nuts, from the supply system 20, by a screwdriver onto the at least one collaborative robot 18.1.
- the or each collaborative robot 18.1 is configured to take two nuts from the supply system 20 and screw the left side of the cover. The robot 18.1 then takes two nuts to fix the right side of the cover 4 on the body 6.
- a single collaborative robot 18.1 is shown.
- the screwdriver (s) of the collaborative robot (s) 18.1 are electric screwdrivers controlled by a torque sensor.
- the assembly station 2 can also include servo boxes (not shown) connected to the screwdrivers and configured to record the torque and the angle of each screwing performed. The analysis of these tightening parameters makes it possible to control the quality of each tightening carried out by the robot (s).
- the assembly station may include an automaton (not shown) configured to carry out the control of each screwing by means of a signal sent by the boxes of the controlled screwdrivers.
- the method comprises a step of lowering the cover 4. This step is carried out by one or more of the collaborative robots 18 while the body 6 is still stopped on the Assembly line.
- At least one collaborative robot 18.2 is equipped with a gripper.
- the method comprises an additional step of placing in position on the body 6 at least one stop 22 of the cover in the closed state, between the step of placing the cover in position and step d lowering the cover, said step being carried out by said collaborative robot 18.2 equipped with the gripper.
- the station includes an area 24 for storing stops 22 of the cover and a vision device (not shown) configured to determine the positions of the stops on the storage area 24.
- the vision device is configured, according to internal working algorithms, to enter and transmit the coordinates of each stop 22 to be entered in order to guide the collaborative robot or robots 18.2. These vision devices are well known per se.
- FIG. 4 illustrates a portion of the collaborative robot 18.2 equipped with the gripper 26.
- the collaborative robot equipped with the gripper 26 advantageously comprises a force sensor 28 configured to detect the gripping of more than one stop at a time by the robot 18.2.
- a force sensor 28 configured to detect the gripping of more than one stop at a time by the robot 18.2.
- an error signal is sent to the PLC.
- FIG. 5 illustrates the body 6 of the vehicle with the cover 4 assembled in the closed position.
- the stops 22 are also shown.
- the stops 22 are arranged on a front portion of the body 6 and are intended to adjust the closed position of the cover to ensure a precise flush thereof with respect to the adjacent parts of the body.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Automatic Assembly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1859899A FR3087687B1 (fr) | 2018-10-26 | 2018-10-26 | Procede d’assemblage de capot de vehicule automobile sur une ligne d’assemblage avec un systeme de vision artificielle |
| PCT/FR2019/052329 WO2020084214A1 (fr) | 2018-10-26 | 2019-10-02 | Procede d'assemblage de capot de vehicule automobile sur une ligne d'assemblage avec un systeme de vision artificielle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3870392A1 true EP3870392A1 (fr) | 2021-09-01 |
Family
ID=65444095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19801942.4A Withdrawn EP3870392A1 (fr) | 2018-10-26 | 2019-10-02 | Procede d'assemblage de capot de vehicule automobile sur une ligne d'assemblage avec un systeme de vision artificielle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3870392A1 (fr) |
| FR (1) | FR3087687B1 (fr) |
| WO (1) | WO2020084214A1 (fr) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2032182C (fr) * | 1989-12-20 | 1996-05-14 | Katuo Kotake | Methode et appareil d'assemblage des elements de carrosserie |
| US5216800A (en) * | 1990-04-28 | 1993-06-08 | Mazda Motor Corporation | Method and apparatus for attaching a lid member of automobile |
| KR100460865B1 (ko) * | 2001-10-09 | 2004-12-09 | 현대자동차주식회사 | 차량용 후드 자동 장착 시스템 및 그 제어방법 |
| JP4861232B2 (ja) * | 2007-04-06 | 2012-01-25 | 本田技研工業株式会社 | 蓋物部材の取付方法及び同装置 |
| JP5279607B2 (ja) * | 2009-05-15 | 2013-09-04 | 本田技研工業株式会社 | 車体へのフードの位置決め方法 |
| US8700205B2 (en) * | 2011-08-05 | 2014-04-15 | GM Global Technology Operations LLC | Moving stop station for robotic assembly |
| JP6555271B2 (ja) * | 2014-11-06 | 2019-08-28 | 日産自動車株式会社 | 自動車の開閉部品の取り付け装置及び取り付け方法 |
| FR3045427B1 (fr) | 2015-12-17 | 2018-05-25 | Psa Automobiles Sa. | Poste d’assemblage d’une ligne de fabrication industrielle |
-
2018
- 2018-10-26 FR FR1859899A patent/FR3087687B1/fr active Active
-
2019
- 2019-10-02 EP EP19801942.4A patent/EP3870392A1/fr not_active Withdrawn
- 2019-10-02 WO PCT/FR2019/052329 patent/WO2020084214A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3087687A1 (fr) | 2020-05-01 |
| WO2020084214A1 (fr) | 2020-04-30 |
| FR3087687B1 (fr) | 2020-12-11 |
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