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
  • B21D19/00—Flanging or other edge treatment, e.g. of tubes
  • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
  • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as 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

Definitions

• the invention relates to a Rollfalzkopf for Rollfalzen a Falzrands on a resting on a folding table sheet metal component, with an attachable to a robot arm
• Main body to which a first work roll and a second work roll are attached, which can be brought for the gradual folding of the seam edge during a Rollfalzvorgangs simultaneously with the seam to be folded edge into contact.
• the invention further relates to a system and a method for roll-folding.
• a Rollfalzkopf the type in question is known from DE 10 2005 004 474 B3.
• the roll-folding is intended in particular for the joining of two
• the work rolls for the bending of the seaming edge are fastened to a so-called roll-folding head, which can be connected directly or indirectly to the robotic arm of a robot (or to a portal arm or the like) and thus freely moved by the robot.
• a so-called roll-folding head which can be connected directly or indirectly to the robotic arm of a robot (or to a portal arm or the like) and thus freely moved by the robot.
• the fold edge is to be bent, positioned in a component holder, the so-called folding table or folding bed, aligned and fixed, so that the Rollfalzkopf with high Workers can work against this folding table. Counter rolls on Rollfalzkopf are not required here.
• the object of the invention is to provide a Rollfalzkopf of the type mentioned, which is simple and which, especially in spatially curved fold lines or folding paths, a fast and reliable Rollfalzen allows high folding quality.
• the roll-forming head according to the invention for roll-folding a folded edge on a metal sheet component lying on a folding table, and in particular for joining two sheet-metal components has a main body which can be attached to a robot arm (or portal arm) on which a first work roll and a second work roll are arranged or fastened which can be brought into contact or at the same time with the seaming edge to be folded during a Rollfalzvorgangs or for a gradual folding (or roll-folding, folding or bending) of the seaming
• the first work roll and the second work roll form a tandem roll set, for which purpose these work rolls are fastened fixedly and closely adjacent to one another on the base body, so that both work rolls during a
• Rollfalzvorgangs only by changing the spatial position or by changing the employment of the body (relative to the sheet metal component to be folded) simultaneously with the seaming edge in contact or can be brought or brought and / or that during a Rollfalzvorgangs only by changing the Spatial position or
• the work rolls on the roll seam head according to the invention are preferably a first prefolding roll and a second prefolding roll. Because of the fold against a folding table are on the Rollfalzkopf invention no counter-rollers for the work rolls or
• a "stationary" arrangement or positioning of the work rolls is understood in particular to mean that the position, position and / or orientation of the two work rolls with respect to the supporting body can not be changed without assembly work Actuators are thus not provided on the roller folding head according to the invention, and a supply of media (electrics, hydraulics and / or pneumatics) is therefore also not required, so that the
• Rollfalzkopf invention is relatively light, and wear-free and low maintenance.
• the two work rolls are close to each other and preferably not over corner and in particular in a common plan outer surface portion of the body are arranged, the axial distance preferably less than the diameter of the smaller work roll, more preferably less than is half the diameter of the smaller work roll, and in particular less than a quarter of the diameter of the smaller work roll is particularly preferably provided that the two
• the stationary and closely spaced arrangement of the two work rolls or prefolding rolls which can be labeled as a tandem roll set, permits two roll folding operations, in particular two, despite the simple construction of the roll seam head
• Vorfalzvorlandais acts can be summarized in a folding pass.
• the first work roll and the second work roll are preferably arranged or fastened on the main body of the roll seam head according to the invention such that their axes are parallel to each other in space. Furthermore, it is preferably provided that the first and / or the second work roll is designed as a truncated cone roller / n or as a trapezoidal roller / n, wherein it is particularly preferred that the first work roller and the second work roller are designed as identical trapezoidal rollers.
• both the first work roll and the second work roll are formed as trapezoidal rollers and preferably as identical trapezoidal rollers and arranged with opposite orientation to the main body of the invention Rollfalzkopfs. It is preferably provided that the two as trapezoidal rollers and in particular as identical trapezoidal rollers
• Rollfalzkopfs are arranged.
• the system according to the invention for roll-folding a seam edge on a sheet-metal component comprises a folding table for laying and optionally fixing the (to be folded) sheet metal component, a robot (or possibly also a portal) and a
• this Rollfalzkopf is attached to a robot arm of the robot (or portal arm or portal gripper) and can be moved freely in space by means of the robot. Otherwise, the preceding and / or following explanations apply analogously.
• the method according to the invention for roll-folding a seam edge on a sheet-metal component comprises at least the following steps:
• the Rollfalzkopf invention is guided by the robot such that the pivoting movements of the Rollfalzkopfs in his Movement guide along the folding path substantially in the sheet metal plane of the (to be folded) sheet metal component or in the table level of the folding table.
• the first work roll is first brought into contact with the seam edge of the sheet metal component to be folded and only then, in particular after the roll seam head has already traveled a path along the seam path, through a (from Robot or portal executed)
• Tilting movement which is in particular a tilting movement about a tilting axis lying in the plane of the table or sheet plane, the roller folding head, the second work roll is brought into contact with the seaming edge.
• Fig. 1 shows schematically in several fields a Rollfalzvorgang.
• Fig. 2 shows schematically in two partial images, the operation of a
• Fig. 3 shows an embodiment for a Rollfalzkopf invention.
• Fig. 4 shows a Rollfalzvorgang with the Rollfalzkopf of FIG. 3rd
• Fig. 5 shows in several fields the work rolls of Rollfalzkopfs of Fig. 3 and
• the first sheet-metal component 10 has a raised fold edge or flanged edge 1 1 (see FIG. 1 a), which in three steps by approximately 30 ° is bent over. In this case, a folding pocket is formed on the first sheet metal component 10, in which the second sheet metal component 20 is held in a form-fitting manner (see FIG. 1 d).
• the folding or bending of the seaming edge 1 1 takes place successively in three steps I, II and III.
• the folded edge 1 1 raised by about 90 ° relative to the adjacent sheet plane is bent by about 30 ° by means of a first work roll 130 (see FIG. 1 b).
• the already folded fold edge 1 1 is bent by a second work roll 140 by a further 30 ° (see Fig. 1 c).
• the steps I and II performed with the first work roll 130 and the second work roll 140 may be referred to as pre-folds, wherein the fold edge 1 1 is bent by about 60 ° with respect to its original vertical orientation.
• the folding step III performed with the work roll 150 may be referred to as finish folding.
• the first work roll 130 and the second work roll 140 may be referred to as pre-folds, wherein the fold edge 1 1 is bent by about 60 ° with respect to its original vertical orientation.
• Work roller 130 and the second work roll 140 are as a truncated cone or as
• Trapezoidal rollers formed and have mutually spatially parallel rotation or rotation axes D1 and D2.
• Work roll 150 for finish folding is a cylindrical roll.
• the two prefolding steps I and II according to the subfigures b and c are executed simultaneously in a roll-folding operation or in a folding pass, so that only two fold passes are required, including the Fertigfalzvorgangs.
• the first work roll 130 and the second work roll 140 are closely juxtaposed and fixedly arranged on a base body 1 10 of a Rollfalzkopfs 100, as shown in Fig. 2a. (The distance between the two work rolls 130 and 140 is in practice lower than shown in Fig. 2a).
• this can be successively bent or pre-folded in two steps I and II, as illustrated in FIG. 2b.
• Fig. 3 shows an embodiment for a Rollfalzkopf invention 100.
• the Rollfalzkopf 100 has a base body 1 10 which can be attached via a flange 1 15 to a robot arm, not shown, of a robot. At the end facing away from the flange 1 15, the first work roll 130 and the second work roll 140 fixed to the base body 1 10 are arranged.
• the two work rolls 130 and 140 are identical as Kunststoffstumprolls or
• the first work roll 130 is arranged on the base body 1 10 such that the larger diameter is located on the inside, ie facing the base body 110 (see also FIG. 2 b).
• the second work roll 140 is arranged on the base body 1 10, that the larger diameter outside, ie away from the base body 1 10 is located (see also Fig. 2b).
• the two work rolls 130 and 140 are arranged on a flat outer side of the main body 1 10, wherein the two axes of rotation D1 and D2 are aligned parallel to each other space (see also Fig. 2b). Furthermore, the two work rolls 130 and 140 due to their trapezoidal
• Work rolls 130 and 140 in the same surface portion of the main body 1 10 may also be referred to as a tandem roll set, twin roll set or twin roll set.
• Fig. 4 shows a Rollfalzvorgang for pre-folding with the Rollfalzkopf 100 of Fig. 3.
• the means to be joined by means of folding connection sheet metal components 10 and 20 are positioned on a folding table or flanging bed 200 and, for example, with a non-illustrated
• the Rollfalzkopf 100 is moved in the direction indicated by M, wherein the raised fold edge 1 1 of the first sheet metal part 10 in two steps initially with the first work roll 130 and subsequently with the second work roll 140 folded or bent, but not yet geligzt.
• the Fertigfalzen takes place in a separate Rollfalzvorgang or operation.
• the two work rolls 130 and 140 are brought into contact or engaged simultaneously with the fold edge 11 to be folded over or folded over.
• the simultaneous engagement of the two work rolls 130 and 140 is accomplished by the movement of the Rollfalzkopfs 100 by means of the robot to the robot arm of the Rollfalzkopf 100 is connected.
• the Rollfalzkopf 100 must be guided by the robot and pressed against the folding table 200, that despite the spatially curved fold path or fold line (which in particular also has a changing curvature), a simultaneous contact of both work rolls 130 and 140 is guaranteed.
• the Rollfalzkopf 100 performs this with the flange 1 15 shown in dashed lines and designated S spatial trajectory, the work rolls 130 and 140 corresponding to this trajectory S a lying substantially in the plane of the table or in the sheet metal plane of the first sheet metal part to be folded 10 fold line or fold path.
• the movement of the Rollfalzkopfs 100 is carried out during the Vorfalzvorgangs such that the second work roll 140 serves as a reference role (or master role or leadership, which is set with respect to their trajectory to ideal folding), so that the first work roll 130 of the second work roll 140 runs ahead , Because of the tight
• Trajectory S to be made pivoting movements of Rollfalzkopfs 100 are carried out so that the respective pivot axis is in the table level or in the plane of one of the sheet metal components to be joined 10 or 20. This can be ensured by appropriate motion control on the part of the robot.
• the roller-folding head 100 performs a tilting movement at the beginning of the roller-folding operation, such that the robot first contacts the first working roller 130 in engagement with the folded seam edge 1 1 brings and performs a Rollfalzvorgang by a few millimeters (depending on the distance between the two roller axes), before then the second work roll 140 by a corresponding tilting movement of the Rollfalzkopfs 100 with the already from the first work roll 130 partially folded or ., Turned folded edge 1 1 is brought into contact or engaged. This tilting movement is illustrated with a bow arrow K. At the end of the Rollfalzvorgangs the two
• first or the second work roll 130 or 140 are not brought into contact with the seam edge 11 in a roll-folding operation, this can be done by controlling the Robot be accomplished, with only the
• Fig. 5 shows the two identically designed work rolls 130 and 140.
• the work rolls 130 and 140 are by means of bolts 132 and 142 on the main body 1 10th
• Roller body 130 or 140 on the bolts 132 and 142 is effected by retaining rings (see reference numeral 141 in Fig. 5a).
• the orientation of a rolling body 130 or 140 on a bolt 132 or 142 is variable, including the rolling body after removal removed from the locking ring and can be plugged with the reverse orientation on the bolt. Since both the rolling elements 130 and 140, and the retaining rings and the bolts are formed identical, the

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bending Of Plates, Rods, And Pipes (AREA)

Priority Applications (1)

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Publications (1)

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Family Applications (1)

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Cited By (2)

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Citations (5)

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• 2012
  • 2012-03-02 DE DE102012004054A patent/DE102012004054A1/de not_active Withdrawn
• 2013
  • 2013-02-13 CN CN201390000287.7U patent/CN204294787U/zh not_active Expired - Lifetime
  • 2013-02-13 WO PCT/EP2013/052828 patent/WO2013127628A1/fr not_active Ceased

Patent Citations (5)

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