EP3021994A1 - Vorrichtung zum crimpen von mindestens zwei metallblechen durch reibung und verfahren zur durchführung davon - Google Patents

Vorrichtung zum crimpen von mindestens zwei metallblechen durch reibung und verfahren zur durchführung davon

Info

Publication number: EP3021994A1
Authority: EP; European Patent Office
Prior art keywords: crimping; tool; edge; sheet; friction
Prior art date: 2013-07-15
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.): Granted

Application number

EP14749874.5A

Other languages

English (en)

French (fr)

Other versions

EP3021994B1 (de

Inventor

Jean Marie COQUET

François BOSSERDET

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

PSA Automobiles SA

Original Assignee

Peugeot Citroen Automobiles SA

Priority date (The priority date 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 date listed.)

2013-07-15

Filing date

2014-06-10

Publication date

2016-05-25

2014-06-10 Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA

2016-05-25 Publication of EP3021994A1 publication Critical patent/EP3021994A1/de

2017-03-01 Application granted granted Critical

2017-03-01 Publication of EP3021994B1 publication Critical patent/EP3021994B1/de

Status Not-in-force legal-status Critical Current

2034-06-10 Anticipated expiration legal-status Critical

Links

238000002788 crimping Methods 0.000 title claims abstract description 158
238000000034 method Methods 0.000 title claims description 17
239000002184 metal Substances 0.000 title abstract 4
238000011144 upstream manufacturing Methods 0.000 claims abstract description 19
238000006073 displacement reaction Methods 0.000 claims description 10
238000005452 bending Methods 0.000 claims description 3
239000011159 matrix material Substances 0.000 claims description 2
238000005530 etching Methods 0.000 description 2
230000000295 complement effect Effects 0.000 description 1
210000000056 organ Anatomy 0.000 description 1

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors

Definitions

the invention relates to a crimping device by folding 180 degrees by friction of a first edge of a first sheet on a second edge of a second sheet.
the invention also relates to a crimping method for the implementation of the crimping device.
Crimping is an assembly process that consists of folding, or folding, an edge of a first sheet called skin, on an edge of a second sheet called lining.
Crimping is frequently used in the automotive industry, to connect two sheets together, in order to form structural elements, such as an opening of a vehicle, or for the purpose of making an opening in the body of a vehicle like an opening for a sunroof.
the crimping operation is generally broken down into two stages: the pre-crimping which consists of bending the edge of the skin at about 90 degrees, and the crimping which consists in folding back the previously folded edge of the skin against the skin 90 degrees. Lining.
a type of crimping device with two-plate rollers which comprises a roller and a roller against which the edge to be folded of a first sheet is interposed, the rollers being driven in displacement along the edge to be folded.
This type of roller device is generally implemented by a crimping method, such as the method described and shown in EP-A-1420907, which consists of folding the edge to be bent of the sheet during several successive passes of rollers, and fold the edge to be folded by means of an additional crimping tool to crimp the two sheets together.
a crimping method such as the method described and shown in EP-A-1420907, which consists of folding the edge to be bent of the sheet during several successive passes of rollers, and fold the edge to be folded by means of an additional crimping tool to crimp the two sheets together.
a disadvantage of this type of roller crimping device and its method of implementation is that they require two separate tools and a method in at least four passes.
the type of roller device is generally bulky and unsuitable for crimping two sheets in a constrained environment or in a small space.
the invention proposes a friction crimping device, of the type comprising at least one crimping tool designed to fold a first edge to bend a first sheet on a second edge of a second sheet, said edges being parallel to each other and the tool being driven in displacement along a working axis parallel to the first edge to be folded, characterized in that the tool delimits at least one crimping face which is adapted to cooperate by friction with the first edge to fold the first sheet, and which extends from upstream to downstream in the direction of travel of the tool, from a first upstream portion of attack designed to extend parallel to the first edge to be folded, until to a second downstream portion angularly inclined with respect to the first portion around the working axis, the crimping face having a third intermediate portion of folding of the shape of a helicoid O ⁇ de adapted to
the crimping tool of the crimping device according to the invention is compact and it is suitable for crimping both a straight edge and a curved edge.
the crimping device comprises a drive means for moving the crimping tool along the working axis, the driving means being designed to drive the crimping tool in at least one first position of the crimping tool. in which the crimping face folds a first time the first edge to bend the first sheet during a first pass, and in at least a second crimping position in which the tool is rotated angularly around the working axis, relative to the first pre-crimping position, and wherein the crimping face folds a second time the first edge to be bent of the first sheet during a second pass.
the device can fold the edge of the first sheet to 180 degrees to crimp the two sheets together.
the drive means for moving the tool is a robot arm which is connected to the crimping tool and which is adapted to drive the crimping tool in the following motion. a predetermined crimping path.
the tool can be driven along an infinite number of trajectories, so that the device can adapt to the crimping of sheet edges having different geometries.
the crimping tool In order to fold the first edge of the first sheet to 180 degrees, the crimping tool is rotated 90 degrees between its first prestressing position and its second crimping position.
the first upstream portion of the crimping face of the tool is inclined angularly with respect to the second downstream portion of the crimping face around the working axis, at an angle of 90 degrees.
the crimping tool has a symmetrical design, the tool having the first crimping face arranged on a first portion of the tool, and a second crimping face arranged symmetrically on a second opposite portion of the tool.
This characteristic makes it possible to fold the edge of the first sheet on one side or the other.
the device is equipped with a matrix for supporting the first sheet and the second sheet during crimping.
the invention also relates to a method of friction crimping to fold a first edge to bend a first sheet on a second edge of a second sheet, said edges being parallel to each other, the method being achieved by means of a tool crimping device according to one of the preceding claims, characterized in that the method comprises successively at least:
a step of pre-crimping which consists in driving the tool in displacement along the working axis in a first pre-setting position so as to fold the first edge to be folded a first time during a first pass, and
a crimping step consisting in driving the tool in displacement along the working axis in a second crimping position in which the tool is rotated angularly about the working axis relative to the first position of pre-positioning; crimping, so as to fold the first edge to fold a second time during a second pass.
FIG. 1 is an overall three-quarter perspective view illustrating the crimping tool in its first pre-crimping position and its second crimping position of a first sheet on a second sheet, according to the invention
FIG. 2 is a detailed perspective view, which illustrates the tool of FIG. 1 in its first pre-crimping position;
FIG. 3 is a detailed perspective view, which illustrates the tool of FIG. 1 in its second crimping position
FIG. 4 is a detail view from below, which illustrates a first crimping face and a second crimping face of the tool of FIG. 1;
FIG. 5 is a detailed perspective view, which illustrates the first crimping face of the tool of FIG. 1;
FIG. 6 is a top view, which illustrates the crimping tool of Figure 1 in its first pre-crimping position and in its second crimping position;
Figure 7 is a cross-sectional view taken along line 7-7 of Figure 6, illustrating the crimping tool in its first pre-crimping position;
Fig. 8 is a cross-sectional view taken along the line 8-8 of Fig. 6, illustrating the crimping tool in its second crimping position;
FIG. 9a is a schematic cross-sectional view, which illustrates an upstream portion of the crimping blade of the tool in its first pre-crimping position, cooperating with the edge to be bent of the first sheet;
FIG. 9b is a schematic cross-sectional view, which illustrates a downstream portion of the crimping blade of the tool in its first pre-crimping position, cooperating with the edge to be bent of the first sheet;
FIG. 10a is a schematic cross-sectional view, which illustrates an upstream portion of the crimping blade of the tool in its second crimping position, cooperating with the edge to be bent of the first sheet;
FIG. 1 0b is a schematic cross-sectional view, which illustrates a downstream portion of the crimping blade of the tool in its second crimping position, cooperating with the edge to be bent of the first sheet.
FIGS. 1 and 6 show a friction crimping device 10 designed to crimp a first inner sheet 1 2 called a lining, and a second outer sheet 14 called a skin, by means of a crimping tool 1 6.
the tool 1 6 crimping is driven in displacement along a working axis A which is here considered to be longitudinal.
the first sheet 1 2 and the second sheet 14 comprise a first edge 1 8 and a second edge 20 respectively which define an opening 21, here an opening for a sunroof of a motor vehicle.
first edge 1 8 and the second edge 20 each extend vertically upwards, parallel to each other, the first edge 1 8 projecting vertically upwards relative to the second edge 20 to be folded and folded against the second edge 20 to crimp the first sheet 1 2 on the second sheet 14.
the crimping device 10 is equipped with a die 22 which extends below the first sheet 1 2 and the second sheet 14, to support the first sheet 12 and the second sheet 14 during crimping.
the tool 1 6 crimping has a T-shape of symmetrical general design along the plane P of symmetry illustrated in Figures 3 and 4.
the tool 1 6 comprises a first portion 24a in L delimiting a first crimping face 26a and a second portion 24b in L, arranged symmetrically to the first portion 24a, delimiting a second face of crimping 26b.
the first crimping face 26a illustrated in particular in FIG.
the first crimping face 26a comprises a third intermediate bending portion 32 in the form of a helicoid, which connects the first upstream portion 28 and the second downstream portion 30 between them, and which is adapted to progressively fold the first edge 1 8 of 90 degrees by twisting.
the crimping device 10 comprises a drive means for moving the crimping tool 1 6, such as a robot arm (not shown), which is connected to the tool 1 6 crimping and which is designed to drive the tool 1 6 crimping in displacement along the working axis A.
the working axis A of the crimping tool 16 is considered to be longitudinal to facilitate the understanding of the description.
the tool 1 6 crimping follows a predetermined crimping path that follows the first edge 1 8 to bend, that is to say, a path comprising a succession of curved portions and rectilinear portion.
the invention also relates to a method of crimping by friction to fold and fold at 180 degrees the first edge 1 8 to bend the first sheet 1 2 on the second edge 20 of the second sheet 14.
the method comprises two successive steps, a pre-crimping step illustrated in FIGS. 2 and 7, for folding the first edge 18 of 90 degrees, and a crimping step illustrated in FIGS. 3 and 8, to fold at again the first edge 1 8 of 90 degrees.
the pre-crimping step consists in driving the crimping tool 1 6 in displacement in a first pre-crimping position in which the tool 1 6 is laid down, so that the first upstream portion 28 of attack of the crimping face 26a is in plane support against a face of the first edge 1 8 to bend the first sheet 1 2.
the crimping face 26a is not shown in plane support against the first edge 1 8 in FIG. 2, the crimping face 26a being substantially clear of the edge 1 8 in order to illustrate both the face 26a and the first edge 1 8.
the crimping tool 16 is moved in its pre-crimping position, illustrated in FIGS. 2 and 7, during a first pass along the working axis A, so that the third intermediate portion 32 Helicoidal folding exerts a pressure on the first edge 18 the first sheet 12 to fold down 90 degrees to the second edge 20 of the second sheet 14.
FIGS. 9a and 9b show diagrammatically the work of the crimping face 26a of the tool 16 in its first pre-crimping position.
the first upstream etching portion 28 of the crimping face 26a extends vertically and cooperates with the first edge 18.
the second downstream portion of the crimping face 26a extends horizontally and cooperates with the first edge 18 bent 90 degrees.
the crimping step consists in driving the crimping tool 16 in displacement along the working axis A in a second crimping position, illustrated in FIGS. 3 and 8, during a second pass, in which the tool 16 is upright, so that the first upstream portion 28 of the crimping face 26a is in plane support against the face of the first previously folded edge 18 of the first sheet 12.
the crimping tool 16 is here rotated 90 degrees between its first pre-crimping position and its second crimping position, in order to fold the first edge to be folded by 180 degrees.
FIGS. 10a and 10b diagrammatically show the work of the crimping face 26a of the tool 16 in its second crimping position.
the first upstream etching portion 26 of the crimping face 26a extends horizontally and cooperates with the first edge 18 which is bent 90 degrees with respect to its initial orientation, before the first passage of the tool 16.
the second downstream portion 30a of the crimping face 26a extends vertically and cooperates with the first edge 18 bent again 90 degrees, the first edge 18 being bent 180 degrees with respect to its starting orientation, before the first passage of the tool 16.
the angular inclination between the first upstream driving portion 28 and the second downstream portion of the crimping face 26a may be less than 90 degrees.
the angular inclination can be 60 degrees for example, in which case the crimping process would be performed in three passes and include an additional step of pre-crimping, for example.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Tyre Moulding (AREA)
Pressure Welding/Diffusion-Bonding (AREA)
Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

EP14749874.5A 2013-07-15 2014-06-10 Vorrichtung zum crimpen von mindestens zwei metallblechen durch reibung und verfahren zur durchführung davon Not-in-force EP3021994B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR1356959A FR3008331B1 (fr)	2013-07-15	2013-07-15	Dispositif pour le sertissage de deux toles par frottement et son procede de mise en oeuvre
PCT/FR2014/051388 WO2015007967A1 (fr)	2013-07-15	2014-06-10	Dispositif pour le sertissage de deux toles par frottement et son procédé de mise en oeuvre

Publications (2)

Publication Number	Publication Date
EP3021994A1 true EP3021994A1 (de)	2016-05-25
EP3021994B1 EP3021994B1 (de)	2017-03-01

Family

ID=49237418

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP14749874.5A Not-in-force EP3021994B1 (de)	2013-07-15	2014-06-10	Vorrichtung zum crimpen von mindestens zwei metallblechen durch reibung und verfahren zur durchführung davon

Country Status (5)

Country	Link
EP (1)	EP3021994B1 (de)
CN (1)	CN105377463B (de)
ES (1)	ES2620357T3 (de)
FR (1)	FR3008331B1 (de)
WO (1)	WO2015007967A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR3034330B1 (fr) *	2015-04-03	2017-03-24	Peugeot Citroen Automobiles Sa	Tete de sertissage entre deux toles d’un element de carrosserie automobile, munie d’un outil associant une rampe de forme et un galet.
FR3047913B1 (fr) *	2016-02-22	2018-02-23	Peugeot Citroen Automobiles Sa	Lame et procede de sertissage de toles
FR3076230B1 (fr) *	2018-01-04	2019-12-13	Psa Automobiles Sa	Dispositif de sertissage.
FR3099998B1 (fr) *	2019-08-21	2023-03-10	Psa Automobiles Sa	tête de sertissage intégrant une lame d’anglage
DE102023111917A1 (de) *	2023-05-08	2024-11-14	Bayerische Motoren Werke Aktiengesellschaft	Falzformwerkzeug, Falzformeinrichtung und Verfahren zur Herstellung einer Falzklebeverbindung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4060046A (en) *	1976-01-30	1977-11-29	Eckold Gerd Juergen	Hand tool
JP2000005834A (ja) *	1998-06-24	2000-01-11	Toyotomi Kiko Co Ltd	薄板状弾塑性体フランジ部の逐次成形加工方法とその方法に使用する装置
JP2000117359A (ja) *	1998-10-16	2000-04-25	Babcock Hitachi Kk	外装板加工装置とこれを用いた外装板加工方法
US7051566B2 (en) *	2004-07-01	2006-05-30	Valiant Corporation	Method for performing a 180 degree hem and apparatus for performing the same
JP4908862B2 (ja) *	2006-02-02	2012-04-04	本田技研工業株式会社	自動車用パネル材
JP2011131261A (ja) *	2009-12-25	2011-07-07	Honda Motor Co Ltd	パネル構造体及びその製造方法

2013
- 2013-07-15 FR FR1356959A patent/FR3008331B1/fr not_active Expired - Fee Related
2014
- 2014-06-10 ES ES14749874.5T patent/ES2620357T3/es active Active
- 2014-06-10 CN CN201480037768.4A patent/CN105377463B/zh not_active Expired - Fee Related
- 2014-06-10 EP EP14749874.5A patent/EP3021994B1/de not_active Not-in-force
- 2014-06-10 WO PCT/FR2014/051388 patent/WO2015007967A1/fr not_active Ceased

Also Published As

Publication number	Publication date
EP3021994B1 (de)	2017-03-01
WO2015007967A1 (fr)	2015-01-22
FR3008331B1 (fr)	2015-11-13
CN105377463B (zh)	2017-07-21
CN105377463A (zh)	2016-03-02
FR3008331A1 (fr)	2015-01-16
ES2620357T3 (es)	2017-06-28

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