WO2023052700A1 - Dispositif de sertissage compact de bords de tôles métalliques, unité et procédé de sertissage associés - Google Patents
Dispositif de sertissage compact de bords de tôles métalliques, unité et procédé de sertissage associés Download PDFInfo
- Publication number
- WO2023052700A1 WO2023052700A1 PCT/FR2022/051656 FR2022051656W WO2023052700A1 WO 2023052700 A1 WO2023052700 A1 WO 2023052700A1 FR 2022051656 W FR2022051656 W FR 2022051656W WO 2023052700 A1 WO2023052700 A1 WO 2023052700A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crimping
- edges
- intermediate support
- blade holder
- blade
- Prior art date
Links
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
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Definitions
- TITLE COMPACT METAL SHEET EDGE CRIMPING DEVICE, ASSOCIATED CRIMPING UNIT AND METHOD
- the invention of the present application relates to the field of assembling motor vehicle bodywork elements by bending their edges.
- the invention relates in particular to the crimping of the bottom of the windows of openings or of the sunroofs of motor vehicles.
- Crimping is a cold assembly technique, by bending metal sheets, used in particular in the automotive industry for shaping bodywork elements such as openings, fenders, wheel arches or hoods. It constitutes a major step in the vehicle manufacturing process since it generally completes the assembly of exterior bodywork elements directly exposed to the eyes of the customer and/or user.
- the crimping of motor vehicle openings is generally carried out either by robots using a wheel, or by mechanical crimping units.
- Wheel crimping is carried out using a programmable robot equipped with a crimping wheel moving along the edge of the bodywork element to be assembled.
- the main drawback of this type of crimping is its low speed due, in particular, to the need to perform several passes to complete the assembly.
- current manufacturing needs require reduced production cycle times.
- crimping tools are generally mounted on mobile platforms.
- crimping in an open table generates significant masses and bulk that are inadequate with the movements of the mobile platforms.
- the published patent document FR 3 089 831 A1 discloses a crimping unit for crimping the bottom of a motor vehicle door window.
- this unit is heavy and bulky.
- the forces applied by this type of machine, i.e. motor or electric cylinder actuating a connecting rod-crank system, during the crimping phase are taken up by the crimping die and by its support, on the other hand, said system connecting rod-crank has limits due to the absence of guidance, this imposes significant sizing.
- An object of the invention is in particular to correct all or part of the drawbacks of the prior art by proposing a solution making it possible to reduce the dimensioning of the crimping unit.
- the subject of the invention is a device for crimping edges of metal sheets by folding one of said edges onto another of said edges, comprising:
- an actuating cylinder comprising a cylinder connected to the blade holder and a sliding rod provided with a spherical distal end facing the crimping blade and configured to engage with a bearing part on a matrix for receiving the edges of metal sheets.
- the movable assembly in translation of the blade holder on the intermediate support is parallel to the sliding rod of the actuating jack.
- the movable assembly in translation of the blade holder on the intermediate support comprises at least two slide rails, each with a dovetail section.
- the crimping device further comprises at least one spring jack fixed to the intermediate support and exerting an elastic force on the blade holder in the direction of translation.
- the at least one spring jack is a gas spring.
- each of the spring cylinders comprises a cylinder rigidly fixed to the intermediate support and a sliding rod in contact with the blade holder.
- the crimping device is configured so that the crimping blade moves relative to the intermediate support, towards the spherical distal end of the sliding rod of the actuating cylinder, during a movement of the blade holder in order to crimp the edges of metal sheets.
- the invention also relates to a unit for crimping metal sheet edges by folding one of said edges onto another of said edges, comprising:
- the matrix has a rear face opposite the receiving face and receiving the bearing part, the spherical distal end of the rod sliding actuator cylinder coming against said support piece when crimping the edges of metal sheets.
- Another object of the invention is a process for crimping metal sheet edges by folding one of said edges over another of said edges, said process being remarkable in that it is implemented by a crimping unit according to the invention and in that it comprises:
- the pivoting action of the intermediate support causes the entry of the crimping blade into a window well of a motor vehicle opening and the sliding action of the blade holder by relative to the intermediate support forms a bottom of the window of said opening.
- FIG 1 shows the crimping of a lower part of the window of a vehicle opening using a unit for crimping the edges of metal sheets according to the invention
- FIG 2 is a side view of the crimping unit of Figure 1;
- FIG 3 shows two perspective views of the crimping device according to the invention of the crimping unit of Figures 1 and 2;
- FIG 4 is a sectional view of the crimping unit at a first crimping stage according to the invention.
- FIG 5 corresponds to Fig. 4 at a later stage
- FIG 6 corresponds to Figure 5 at a later stage
- FIG. 1 illustrates the crimping of a motor vehicle opening window bottom using a crimping unit 10 according to the invention.
- the opening in this case a vehicle door, comprises an opening intended to receive a window.
- the left part of Figure 1 is a sectional view of the right part of Figure 1 along section A-A'.
- the operation of crimping a bottom of the window pane consists of folding flat an open edge of sheet metal in the direction of another edge of sheet metal by penetrating a blade of crimping 26 in the window well of the sash.
- the crimping is carried out against a receiving face of the sheet edges of a fixed die 12 of the crimping unit 10, using a blade holder 24.
- the crimping operation is carried out after a pre-crimping operation of the edge of the sheets intended to be folded against the other edge of the sheets. During the operation of pre-crimping the edge of the sheets, said edge of the sheets is partially bent in the direction of the other edge of the sheets.
- Sectional view A-A' of Figure 1 shows the sheet metal edge intended to be bent before its crimping operation 2 and after its crimping 4 on the other sheet metal edge.
- a pre-crimping operation has previously been carried out so that the angle formed by the sheet edge after pre-crimping and the sheet edge against which the pre-crimped sheet edge will be bent has a predetermined value.
- the predetermined value of the angle is equal to 45°.
- the crimping unit 10 is fixed on a frame 40 intended to receive bodywork elements 15 made of sheet metal, the edges of which are to be crimped.
- the unit 10 for crimping the edges of metal sheets by folding one of said edges onto another of said edges comprises the die 12 and a crimping device 20 according to the invention.
- the crimping operation is carried out by the crimping device 20 against the die 12.
- the face for receiving the edges of metal sheets is intended to cooperate with a working face 27 of the crimping blade 26 during the crimping operation. During this operation, the sheet edge is pressed against the other sheet edge between the receiving face 14 of the sheet edges of the die 12 and the working face 27 of the crimping blade 26.
- the crimping unit 10 can be used to crimp a relatively linear zone, such as for example a sunroof or the bottom of the window of a motor vehicle.
- the device 20 for crimping metal sheet edges by folding one of said edges onto another of said edges comprises a support 22, a blade holder 24 movable relative to support 22 and carrying at least one crimping blade 26.
- the support 22 is intended to fix the crimping device 20, for example, on a frame 40 arranged in particular to receive bodywork elements 15 whose edges are to be crimped.
- the fixing can be carried out by means of screws which makes it possible to disassemble the crimping device 20 from the frame 40.
- An intermediate support 28 is pivotally mounted on the support 22, this is achieved by means of the pivot cylinder 34, the distal part 35 of the rod of the cylinder 34 is articulated on an axis 6 of the intermediate support 28, stops 28.1 and 28.2 belonging to said intermediate support 28 respectively ensure the repeatability of the high and low positions of said intermediate support 28.
- the blade holder 24 is mounted movable in translation on the intermediate support 28, said assembly comprises at least two slide rails 29, each with a dovetail section.
- the crimping device 20 comprises an actuating cylinder 30 comprising a cylinder 25 connected to the blade holder 24 and a sliding rod 31 provided with a spherical distal end 32 facing the crimping blade 26 and configured to engage with a bearing piece 16 on a die 12 for receiving the edges of metal sheets.
- the movable assembly in translation of the blade holder 24 on the intermediate support 28 is parallel to the sliding rod 31 of the actuating cylinder 30.
- the crimping device 20 further comprises at least one spring jack 38 fixed to the intermediate support 28 and exerting an elastic force on the blade holder 24 in the direction of translation, said spring jack 38 can be of several types and is preferably a gas spring.
- each of the spring cylinders 38 comprises a cylinder 37 rigidly fixed to the intermediate support 28 and a sliding rod 39 in contact with the blade holder 24.
- the crimping device 20 is configured so that the crimping blade 26 moves relative to the intermediate support 28, towards the spherical distal end 32 of the sliding rod 31 of the actuator 30 , during movement of the blade holder 24 in order to crimp the edges of metal sheets.
- the intermediate support 28 is in the low position, i.e. the rod of the pivot cylinder 34 is retracted and the stop 28.2 is in direct contact with the support 22, the rod 31 of the actuator 30 is retracted.
- the spring cylinders 38 exert sufficient force to overcome the gravity of the assembly formed by the blade holder 24 and the intermediate support 28 which, naturally, would be placed in a low position with respect to the intermediate support 28.
- the first movement of the crimping device 20 is a tilting of the intermediate support 28 around an axis of rotation 8 common with the support 22, said tilting is actuated by the output of the cylinder rod 34, the stop 28.1 is then in the high position in contact with the support 22.
- the crimping blade 26 This allows the crimping blade 26 to be above the edge of the sheets to be crimped and its working face 27 to be facing the edge of the sheets to be crimped, the crimping blade 26 is considered to be in a extended position before crimping.
- the pivoting of the intermediate support 28 around its axis of rotation 8 makes it possible to bring the crimping blade 26 into (or out of) the well of the sash pane in the direction of pivoting.
- the spherical distal end 32 comprises a face for taking up the crimping force 33, said face for taking up the crimping force 33 is facing the rear face 17 belonging to the bearing part 16 of the die 12 without these two faces 33, 17 are in contact.
- Figure 5 shows a configuration of the crimping unit 10 just prior to the crimping action.
- the sliding rod 31 advances until its spherical distal end 32 is positioned against the bearing part 16, the face for taking up the crimping force 33 is then in direct contact with the rear face 17.
- the support piece 16 has a height-adjustable position by means, for example, of a sliding fastening system mounted on the rear face 13.
- a sliding fastening system mounted on the rear face 13.
- the spherical contact between the face for taking up the crimping force 33 and the rear face 17, combined with the possibility of adjusting the height of the position of the support part 16, makes it possible to ensure good support between the spherical distal end 32 and said support part 16, this contributes to limiting the forces in the surrounding parts and overcome a possible problem of parallelism between the support part 16 and the distal end 32 in the case where their respective faces 17, 33 would have been flat.
- the spring cylinders 38 still maintain the elastic force exerted on the blade holder 24.
- the crimping blade 26 is maintained relative to the die 12 in the same position as before .
- Figure 6 shows the crimping unit 10 during the crimping operation.
- a pressure is applied inside the actuating cylinder 30 in order to cause its sliding rod 31 to come out of the cylinder 25.
- the actuating cylinder 30 being arranged on the blade holder 24 and on the slide rails 29, the release of its rod generates a relative movement between the blade holder 24 and the slide rails 29.
- the rod 31 of the actuating cylinder 30 can no longer advance but it continues to come out of the cylinder 25 of the actuating cylinder 30. Also, it is the blade holder 24 which slides on the intermediate support 28, reducing the space between the crimping blade 26 and the die 12. The blade holder 24 leaves its deployed position. The sheet edges are then bent between the working face 27 of the crimping blade 26 and the receiving face 14 of the metal sheet edges of the die 12. The crimping of sheet edges metal is produced by a relative movement between the rod of the actuator 30 and its cylinder 25.
- the method of crimping edges of metal sheets by folding one of said edges onto another of said edges therefore comprises a pivoting action of the intermediate support 28 and a sliding action of the blade holder 24 with respect to the intermediate support 28 in order to press the edges of metal sheets against each other.
- the construction of the crimping device 20 according to the invention makes it possible to reduce the mass and the size of the crimping unit 10 for the edge of metal sheets with respect to the existing units. Indeed, the bending force is ensured by a pure translation, which can be easily achieved by a cylinder. It is therefore no longer necessary to use an engine driving a complicated connecting rod and crank system. This simplification of the mechanical parts also reduces the cost of the crimping unit.
- the fact of working with an action/reaction system makes it possible to limit the forces in the surrounding parts and makes it possible to ensure the rigidity of the crimping unit despite its small size.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Package Closures (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280066152.4A CN118043152A (zh) | 2021-09-29 | 2022-09-02 | 用于折边压接金属板边缘的紧凑型折边压接装置及相关联的折边压接单元和折边压接方法 |
US18/686,322 US12240026B2 (en) | 2021-09-29 | 2022-09-02 | Compact device for crimping edges of metal sheets, associated crimping unit and method |
EP22782908.2A EP4408597A1 (fr) | 2021-09-29 | 2022-09-02 | Dispositif de sertissage compact de bords de tôles métalliques, unité et procédé de sertissage associés |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2110249 | 2021-09-29 | ||
FR2110249A FR3127421B1 (fr) | 2021-09-29 | 2021-09-29 | Dispositif de sertissage compact de bords de tôles métalliques, unité et procédé de sertissage associés |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023052700A1 true WO2023052700A1 (fr) | 2023-04-06 |
Family
ID=78212355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/051656 WO2023052700A1 (fr) | 2021-09-29 | 2022-09-02 | Dispositif de sertissage compact de bords de tôles métalliques, unité et procédé de sertissage associés |
Country Status (5)
Country | Link |
---|---|
US (1) | US12240026B2 (fr) |
EP (1) | EP4408597A1 (fr) |
CN (1) | CN118043152A (fr) |
FR (1) | FR3127421B1 (fr) |
WO (1) | WO2023052700A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2110249A1 (en) | 1970-10-06 | 1972-06-02 | Sipcam Italiana Spa | Fungicidal compsn - contg oxazolidine deriv and benzene or aniline derivs |
JPS4868459A (fr) * | 1971-12-22 | 1973-09-18 | ||
WO2001068285A1 (fr) * | 2000-03-14 | 2001-09-20 | Kuka Schweissanlagen Gmbh | Unite a border |
US20070193325A1 (en) * | 2006-02-17 | 2007-08-23 | Nissan Motor Co., Ltd. | Hemming machine and inspecting method thereof |
FR3089831A1 (fr) | 2018-12-12 | 2020-06-19 | Psa Automobiles Sa | Dispositif et unite de sertissage du bord d’une tole et procede mis en œuvre par un tel dispositif |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE460770B (sv) * | 1988-03-21 | 1989-11-20 | Volvo Ab | Bockningsanordning |
JP4822485B2 (ja) * | 2001-09-21 | 2011-11-24 | 株式会社高津製作所 | ヘミング装置 |
JP2005028368A (ja) * | 2003-07-07 | 2005-02-03 | Honda Motor Co Ltd | ヘミング加工装置 |
-
2021
- 2021-09-29 FR FR2110249A patent/FR3127421B1/fr active Active
-
2022
- 2022-09-02 EP EP22782908.2A patent/EP4408597A1/fr active Pending
- 2022-09-02 WO PCT/FR2022/051656 patent/WO2023052700A1/fr active IP Right Grant
- 2022-09-02 US US18/686,322 patent/US12240026B2/en active Active
- 2022-09-02 CN CN202280066152.4A patent/CN118043152A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2110249A1 (en) | 1970-10-06 | 1972-06-02 | Sipcam Italiana Spa | Fungicidal compsn - contg oxazolidine deriv and benzene or aniline derivs |
JPS4868459A (fr) * | 1971-12-22 | 1973-09-18 | ||
WO2001068285A1 (fr) * | 2000-03-14 | 2001-09-20 | Kuka Schweissanlagen Gmbh | Unite a border |
US20070193325A1 (en) * | 2006-02-17 | 2007-08-23 | Nissan Motor Co., Ltd. | Hemming machine and inspecting method thereof |
FR3089831A1 (fr) | 2018-12-12 | 2020-06-19 | Psa Automobiles Sa | Dispositif et unite de sertissage du bord d’une tole et procede mis en œuvre par un tel dispositif |
Also Published As
Publication number | Publication date |
---|---|
US12240026B2 (en) | 2025-03-04 |
EP4408597A1 (fr) | 2024-08-07 |
CN118043152A (zh) | 2024-05-14 |
FR3127421A1 (fr) | 2023-03-31 |
US20240261844A1 (en) | 2024-08-08 |
FR3127421B1 (fr) | 2023-08-18 |
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