WO2022023635A1 - Workpiece carrier assembly of a crimping device - Google Patents
Workpiece carrier assembly of a crimping device Download PDFInfo
- Publication number
- WO2022023635A1 WO2022023635A1 PCT/FR2021/051202 FR2021051202W WO2022023635A1 WO 2022023635 A1 WO2022023635 A1 WO 2022023635A1 FR 2021051202 W FR2021051202 W FR 2021051202W WO 2022023635 A1 WO2022023635 A1 WO 2022023635A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding
- sheets
- periphery
- movable element
- crimping
- 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
- B21D39/023—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 using rollers
-
- 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
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Definitions
- the present invention relates to a workpiece carrier assembly suitable for holding sheet metal parts, in particular in the case where a sheet metal part is intended to be assembled with another sheet metal part.
- the invention relates more particularly to a means for holding sheets in a
- a crimping device comprises a part holder system for crimping a sheet metal part on another sheet metal part, said part holder system comprising mechanical positioning means at the periphery of the part to be crimped prior to the crimping operation. It is also preferable to maintain this positioning and this maintenance of the sheets, at their periphery, during the crimping operations in order to ensure the correct geometry of the parts thus obtained.
- the document JPHQ550161A describes meanwhile a mechanical means for positioning and maintaining the periphery of the sheet to be crimped, said positioning means being pivotable about an axis so as to retract by rotation in the direction of movement of the seaming rolls.
- a elastic return means allow a return to the initial position of said positioning and holding means, with a part in contact with the periphery of the sheets, of the peripheral positioning means when the rollers have passed the zone of the peripheral holding means.
- a peripheral holding system according to this state of the art has several disadvantages:
- the present invention aims to remedy these drawbacks. More particularly, the present invention aims to provide a peripheral positioning and holding means which minimizes or eliminates the time of absence from positioning and/or holding. The present invention also aims to provide a means of positioning and holding sheets to be crimped that do not in any way interfere with the passage of the crimping tool and or crimping rollers.
- an assembly comprising: a crimping die intended to receive sheets to be crimped together, a crimping tool moving along the periphery of the sheets to be crimped, a holding means intended to hold in position at least one of the sheets on the die, characterized in that the holding means comprises a first part, a second part, and a connecting means between the said first and second parts, the connecting means being a mechanical drive means, the first part being movable between a holding position in which said first part is in contact with one of the edges of the periphery of at least one sheet so as to positioning and holding the at least one of the sheets, and a retracted position in which said part is remote from said edge, the holding means being configured so that when the first part passes from the holding position to the retracted position the another part passes from a retracted position to a holding position, and in that the movement of the first part from the holding position to the retracted position is generated by the crimping tool, during the movement of
- the invention is advantageous in that the passage of a part initially in the so-called holding position to a retracted position is accompanied simultaneously by the passage of another part from a retracted position to a holding position, the peripheral positioning and holding of at least one of the sheets to be crimped is constantly ensured or at least the period of time during which the peripheral positioning and holding no longer exists is minimized.
- the invention is also advantageous in that it is the displacement of the crimping tool itself which causes the displacements of the part in the holding position to a retracted position, and of the part in the retracted position to the holding position. This therefore ensures that the part initially in the holding position by retracting does not hinder the advance of the crimping tool.
- each of the parts comprises an actuation interface so that the movement of the first part from the holding position to the retracted position is generated by the contact of a portion of the tool to be crimped, cooperating with said actuation interface during movement of the crimping tool along the periphery of the sheets to be crimped
- the holding means comprises reversible locking means maintaining each of the parts successively in the holding position and in the retracted position.
- the holding means is locked when one of the parts is in the holding position, the locking means being reversible can pass to an unlocked holding position in order to allow the passage of a first part of the holding position. holding in a retracted position, and then moving again to a locked position when the second part is in the holding position.
- the holding means comprises a support and a rotatable element connected to the support, and the first part and the second part are fixed to said rotatable element, and said parts are fixed relative to each other.
- the reversible locking means comprises a pin provided with an elastic return element and in that the movable element comprises shapes which cooperate with the pin in order to block the rotation of this movable element.
- the support is fixed to the crimping die.
- the parts are fixed to the rotatable element and have the form of branches extending in a longitudinal direction and the branches form between them a non-zero angle along the axis of rotation of the movable element.
- the parts of the holding means are made with simple shapes, and the passage of one of the branches from a holding position to a retracted position causes the passage of another branch from a retracted position to a holding position by simple rotation of the movable element on which the branches are fixed.
- each of the branches comprises an actuation interface capable of cooperating with a portion of the crimping tool, when the crimping tool moves along the periphery of the sheets to be crimp between them, so that the contact of said portion of the crimping tool (3) on the actuation interface of the branch in the holding position causes the unlocking of the reversible locking means during the movement of the crimping tool along the periphery of the laminations and then rotates the movable element
- the invention also relates to a process for crimping sheets together, in a crimping device comprising at least one assembly according to the invention, comprising: [0029] - a first step (E1) of positioning and holding at least one of the sheets on the periphery by a first branch fixed to a rotatable element of a holding means,
- a third drive step (E3) causing the first branch to pass from a holding position to a retracted position and causing the second branch to pass a retracted position to a holding position, by rotation of the movable element driven by the contact of a portion of a crimping tool, moving along the periphery of at least one of the sheets to be crimped, on an actuation interface of the first branch (41),
- Figure 1 is a simplified representation of an assembly (1) comprising a holding means (4) with a branch (41) for holding in position sheets (7,8) to be crimped together, with on the periphery of sheets according to the displacement (D) of a crimping tool (3) along the periphery of the sheets (7,8)
- FIG. 2 Figure 2 schematically shows a branch (41, 42, ...) according to one embodiment.
- the vertical (Z), longitudinal (X) and transverse (Y) directions refer to the periphery of the sheets in the area of the holding means (4).
- Z is oriented upwards, that is to say perpendicular to the crimping plane, that is to say perpendicular to the die (2) in the crimping zone.
- X is oriented along the periphery of the laminations, in the direction of movement of the crimping tool.
- Y is arranged transversely so that (C,U,Z) forms a direct reference. Y is therefore located in the plane means of the sheets (7,8) once crimped, in the crimping zone in line with the holding means (4) (equivalent to the crimping plane).
- FIG. 1 schematically shows an assembly (1) of a sheet metal crimping device.
- This assembly (1) comprises a crimping die (2), a holding means (4) for the sheets (7,8), to be crimped together, ensuring the positioning and holding of the said sheets (7,8) in their periphery.
- the assembly (1) further comprises a crimping die (2) which is intended to support the sheets (7,8) to be crimped, mainly in the Z direction.
- the holding device (4) comprises at least a first part (41) in contact with the periphery of at least one of the sheets (7,8), in the purpose of guaranteeing the maintenance and positioning of the sheets (7,8) to be crimped. This positioning and this holding are thus carried out mainly in a direction Y as defined above.
- the assembly (1) further comprises a crimping tool (3) moving along the periphery of the sheets (7,8) to be crimped together.
- the crimping tool (3) is a roller of cylindrical shape with an axis parallel to Y.
- the holding device (4) comprises a support (not visible in the figures).
- the support can be fixed to any other fixed part of the tool or to a frame.
- the holding device (4) further comprises a movable element (5) which is fixed to said support.
- the element (5) is rotatable along an axis of rotation parallel to the Y axis as defined above.
- the movable element (5) can be movable in translation and in rotation.
- the holding device further comprises a first part (41).
- Said first part (41) is rigidly fixed to the movable element (5). As shown in Figure 1 this first part (41) is intended to ensure the maintenance in position of the sheets (7,8) to be crimped together by contact of at least one of the sheets, on the periphery of said sheets, .
- the first part (41) is an elongated branch in a longitudinal direction, and has a contact portion with at least one of the sheets (7,8).
- the sheet (7) rests on the die (2), and is most often referred to as a panel.
- This panel (7) has an edge inclined with respect to the plane of the die (2) in the crimping zone. This inclined edge is intended to be crimped onto the second sheet (8), often referred to as a liner. This liner (8) rests on the panel (7) in the seaming area.
- the branch (41) comprises contact portion with at least one of the sheets which is a face (61) of the same inclination as the inclined edge of the panel (7), and the contact of this face (61) takes place with the inclined edge of the panel (7).
- the branch (41) has two flat faces (62, 63) both located in an XZ plane.
- the inclined face (61) connects the other faces (62) and (63), the face (63) being the farthest from the matrix 3.
- the face (62) being located the lowest in the direction Z, and is located closest to the matrix (2).
- the holding device (4) further comprises at least a second part (42) fixed rigidly to the movable element (5).
- This second part (42) as shown in Figure 1 is in the retracted position. In this retracted position the second part (42) does not interfere with the sheets (7,8) to be crimped together. In this retracted position, this second part (42) does not interfere with the crimping tool (3) either when the crimping tool (3) moves along the periphery of the sheets (7,8) to crimp between them.
- the second part consists of a branch (42).
- the second branch (42) is identical in shape to the first branch (41).
- This second branch (42) is rigidly fixed to the movable element (5) so that a movement of the movable element (5) can bring the branch (42) into a position for holding the sheets (7 ,8) to be crimped together.
- the movable element (5) is rotatable
- the branches (41, 42) are of identical shapes, and are fixed on the movable element by making a non-zero angle between them.
- the branches (41) and (42) are thus driven in rotation simultaneously by rotation of the movable element (5);
- the holding device (4) comprises a plurality of parts.
- these parts consist of identical branches (41, 42, 43, 45) which are fixed to the movable element (5) and angularly distributed with respect to the axis of rotation of the movable element (5 ) .
- a rotation of the movable element (5) can thus bring, by successive rotations, each of the other branches into the same position as the branch (41) initially, that is to say as represented in FIG. maintenance.
- the different branches (41, 42, 43, 44) are identical to each other and of shape as shown in Figure 32.
- the branches can be made directly by protrusions of shapes of the mobile element in rotation (5) and integral with this mobile element (5).
- the branches (41, 42, 43, 44) can be removably fixed relative to the movable element (5).
- the holding means (4) further comprises a locking means (9) reversible.
- the locking means consists of a pin (91) provided with an elastic return element (92), for example a spring.
- the reversible locking means (9) is fixed to the support (6)
- the movable element (5) is rotatable along Y and has shapes (51) that can cooperate with the pin (91).
- the movable element (5) may comprise a series of hollows and bumps arranged regularly in a circle with respect to the axis of rotation, so that the said pin (91) under the action of the elastic means of recall by inserting into one of the hollows blocks the rotation of the mobile element (5) and so that a force intended to rotate the mobile element around its axis of rotation can cause the pin to come out of the hollow and thus allow the rotation of the movable element (5)
- a rotating element (5) may consist of a disk comprising a series of notches, designed with fillets.
- the stiffness of the elastic return means (92) is chosen to be sufficiently low so as to allow the movement of the pin under the action of a rotational force exerted directly or indirectly on the mobile elements (5).
- the parts (41, 42,43,44) in the form of branches each respectively comprise a contact interface intended to cooperate, during movement of the crimping tool (3 ), along the periphery of the sheets (7, 8), with a portion of this crimping tool (3) so that when moving the crimping tool (3) along the periphery of the sheets (7, 8), said portion comes into contact with the interface of contact and thus exerts a force intended to cause ie displacement of the movable element (5) in rotation by the fact that each branch is rigidly fixed on the movable element.
- the holding device comprises a rotatable element (5) around an axis and a plurality of branches (41, 42, 43, 44) rigidly fixed to the movable element (5) and distributed at the same angle around its axis of rotation.
- next branch (42) passes by rotation from a retracted position to a holding position
- the reversible locking means (9) provided with an elastic return means (92) by cooperating with shapes of the movable element will block the rotation of the mobile element (5), the branch (42) then being in a position which ensures the positioning and the maintenance of the sheets (7,8).
- the crimping tool comprises a roller, and this roller itself comes into contact with the actuation interface of the branch (41) initially in the holding position.
- the device according to the invention is particularly intended for devices for crimping sheet metal, in particular motor vehicle sheet metal, in particular the panel and lining of motor vehicle openings.
- the invention also relates to a method for crimping sheets together in a crimping device comprising at least one assembly according to the invention and comprising - a first step (E1) of positioning and holding at least one of the sheets (7,8) at the periphery by a first branch (41) fixed to an element (5) movable in rotation of a holding means ( 4),
- a third drive step (E3) causing the first leg (41) to pass from a holding position to a retracted position and causing the second leg (42) to pass from a retracted position to a holding position, by rotation of the movable element (5) driven by the contact of a portion of a crimping tool (3), moving along the periphery of at least one of the sheets to be crimped, on an actuation interface ( 10) of the first branch (41),
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MA60755A MA60755B1 (en) | 2020-07-31 | 2021-06-30 | PART HOLDER ASSEMBLY OF A CRIMPING DEVICE |
BR112023001715A BR112023001715A2 (en) | 2020-07-31 | 2021-06-30 | PART HOLDER ASSEMBLY OF A CRIMPING DEVICE |
EP21748906.1A EP4188623B1 (en) | 2020-07-31 | 2021-06-30 | Workpiece carrier assembly of a crimping device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2008213A FR3112975B1 (en) | 2020-07-31 | 2020-07-31 | Workpiece holder assembly of a crimping device |
FR2008213 | 2020-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2022023635A1 true WO2022023635A1 (en) | 2022-02-03 |
WO2022023635A9 WO2022023635A9 (en) | 2023-03-30 |
Family
ID=74045558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2021/051202 WO2022023635A1 (en) | 2020-07-31 | 2021-06-30 | Workpiece carrier assembly of a crimping device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4188623B1 (en) |
BR (1) | BR112023001715A2 (en) |
FR (1) | FR3112975B1 (en) |
MA (1) | MA60755B1 (en) |
WO (1) | WO2022023635A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2008213A1 (en) | 1968-05-10 | 1970-01-16 | Phoenix Armaturen Werke | |
JPH0550161A (en) | 1991-08-20 | 1993-03-02 | Torai Eng Kk | Positioning device for stock to be hemmed |
JP2008093689A (en) * | 2006-10-11 | 2008-04-24 | Honda Motor Co Ltd | Roller hemming device |
WO2014174874A1 (en) * | 2013-04-24 | 2014-10-30 | 日産自動車株式会社 | Roller hemming processing device and roller hemming processing method |
DE102014225384A1 (en) * | 2014-12-10 | 2016-06-16 | Volkswagen Aktiengesellschaft | Device and method for fixing components during a folding process |
-
2020
- 2020-07-31 FR FR2008213A patent/FR3112975B1/en active Active
-
2021
- 2021-06-30 BR BR112023001715A patent/BR112023001715A2/en unknown
- 2021-06-30 EP EP21748906.1A patent/EP4188623B1/en active Active
- 2021-06-30 MA MA60755A patent/MA60755B1/en unknown
- 2021-06-30 WO PCT/FR2021/051202 patent/WO2022023635A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2008213A1 (en) | 1968-05-10 | 1970-01-16 | Phoenix Armaturen Werke | |
JPH0550161A (en) | 1991-08-20 | 1993-03-02 | Torai Eng Kk | Positioning device for stock to be hemmed |
JP2008093689A (en) * | 2006-10-11 | 2008-04-24 | Honda Motor Co Ltd | Roller hemming device |
WO2014174874A1 (en) * | 2013-04-24 | 2014-10-30 | 日産自動車株式会社 | Roller hemming processing device and roller hemming processing method |
DE102014225384A1 (en) * | 2014-12-10 | 2016-06-16 | Volkswagen Aktiengesellschaft | Device and method for fixing components during a folding process |
Also Published As
Publication number | Publication date |
---|---|
MA60755B1 (en) | 2024-09-30 |
FR3112975B1 (en) | 2022-06-24 |
FR3112975A1 (en) | 2022-02-04 |
WO2022023635A9 (en) | 2023-03-30 |
EP4188623A1 (en) | 2023-06-07 |
EP4188623B1 (en) | 2024-07-31 |
BR112023001715A2 (en) | 2023-03-28 |
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