EP3593918A1 - Outil à rouleaux pour une machine-outil, système d'outil à rouleaux et procédé de formage linéaire d'une tôle - Google Patents

Outil à rouleaux pour une machine-outil, système d'outil à rouleaux et procédé de formage linéaire d'une tôle Download PDF

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Publication number
EP3593918A1
EP3593918A1 EP19184382.0A EP19184382A EP3593918A1 EP 3593918 A1 EP3593918 A1 EP 3593918A1 EP 19184382 A EP19184382 A EP 19184382A EP 3593918 A1 EP3593918 A1 EP 3593918A1
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EP
European Patent Office
Prior art keywords
roller
tool
sheet
roller body
head
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.)
Granted
Application number
EP19184382.0A
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German (de)
English (en)
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EP3593918B1 (fr
Inventor
Stefan Kraft
Andreas Deuerlein
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.)
Pass Stanztechnik AG
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Pass Stanztechnik AG
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Publication of EP3593918A1 publication Critical patent/EP3593918A1/fr
Application granted granted Critical
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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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template

Definitions

  • the invention relates to a roller tool for a machine tool for linear forming of a sheet. Furthermore, the invention relates to a roller tool system with such a roller tool and a method for linear forming of a sheet with a roller tool.
  • roller tool system for a machine tool for linear forming of a sheet is known.
  • Such roller tools are also known from the EP 0 714 720 A1 , the DE 10 2005 003 558 A1 and the DE 10 2006 049 045 A1 ,
  • An object of the present invention is to improve a roller tool.
  • a roller tool is to be created which can be dimensioned compactly and is particularly robust and flexible in operation.
  • the roller tool should be designed to reliably ensure the processing of metal sheets with a particularly low sheet metal wall thickness or with a particularly large sheet metal wall thickness even at high degrees of deformation.
  • the roller tool with the at least one roller body which by means of a plunger the machine tool can be driven in rotation via the rotary engagement of the tool head, which is designed as a form-fitting profile, can be operated particularly flexibly on different machine tools and can be driven in rotation reliably and with low wear via the plunger.
  • the rotary engagement designed as a form-fitting profile ensures the transmission of particularly high torques and a slip-free and thus precise control of the feed transmitted to the sheet metal via the at least one roller body. Costly and space-intensive drive components, in particular pivotable in changing machining directions with the roller tool and / or attached to the roller tool, can be eliminated.
  • the roller tool can thus be used in a machine turret of common machine tools for holding different machining tools, in particular roller and punching tools.
  • the transmission of the rotary movement via the tool head which is robustly dimensioned for transmitting the contact pressure, also enables a particularly compact design of the roller tool. Due to the compact design of the roller tool, a larger number of processing tools can be arranged in the same space, whereby the processing performance of the machine tool can be increased. Due to the formation of a single mechanical interface between the machine tool and the roller tool for transmitting both the contact pressure and the rotary movement in the form of the tool head, the roller tool can be exchanged particularly easily and quickly. The machine and tool maintenance effort is particularly low.
  • the form-fitting profile of the rotary engagement can be designed, for example, as a tongue and groove connection, in particular as a key connection, or as a spline connection.
  • the form-fitting profile is particularly preferred formed as a single groove extending radially to the longitudinal axis of the tool.
  • the rotary engagement can be keyhole-shaped in a plan view. The plunger of the machine tool can thus only interact with the rotary engagement in a certain angular position. It is advantageous, in particular for the embossing process, that an orientation of the at least one roller body connected to the tool head can be clearly determined.
  • the roller tool ensures the precise forming of sheets with a particularly thin sheet wall thickness and / or a particularly large sheet metal wall thickness.
  • the sheet metal wall thickness of the sheet to be processed can be, for example, at most 0.5 mm, in particular at most 0.2 mm, in particular at most 0.1 mm.
  • the sheet metal wall thickness can also be at least 2.5 mm, in particular at least 3 mm, in particular at least 4 mm.
  • the roller body acts on it in a rolling manner with the sheet.
  • the at least one roller body preferably transmits at least a portion of the contact pressure and the rotary movement, in particular in the form of a feed movement, to the sheet metal.
  • the sheet metal can be displaced relative to the roller tool for linear forming by the supporting rotary movement of the at least one roller body in a particularly powerful and controlled manner.
  • the precise shaping of the sheet can thus be reliably ensured regardless of the machining direction, in particular in the case of pulling and / or pushing machining.
  • the roller tool can be designed as a forming tool for forming the sheet and / or as an embossing tool for embossing the sheet and / or as a separating tool for separating the sheet. That as a forming tool Rolling tool can be designed, for example, for forming beads.
  • the rotary engagement is designed for reversible interaction with the tool head.
  • the plunger can be reversibly connected to the tool head via the rotary engagement.
  • the rotary engagement can have a clamping surface for non-positive connection to the tappet.
  • the roller tool can thus be arranged in the machine turret of the machine tool and can be changed automatically.
  • the at least one roller body is preferably mounted on the housing such that it can rotate about an axis of rotation oriented vertically to the longitudinal axis of the tool.
  • a machining direction in which the sheet metal is displaced relative to the roller tool during the forming is preferably oriented perpendicular to the longitudinal axis of the tool and perpendicular to the axis of rotation of the at least one roller body.
  • the roller tool has at least two, in particular at least three, in particular at least four, roller bodies which can be driven in rotation via the tool head.
  • the multiple roller bodies can be driven via a common roller shaft.
  • at least two of the roller bodies can be driven in rotation independently of one another.
  • the at least two roller bodies can be connected to one another via a transmission, in particular a differential.
  • the advantage of this is that the sheet metal can be processed particularly flexibly and precisely.
  • the housing has an index engagement for rotating the roller tool around the longitudinal axis of the tool by means of an index drive of the machine tool.
  • the roller tool can be rotated relative to the roller tool in accordance with the displacement of the sheet.
  • the axis of rotation of the at least one roller body can be oriented perpendicular to the machining direction.
  • the roller tool comprises a lubrication device for lubricating the movably mounted components, in particular the at least one roller body.
  • the tool head can have a head bore for supplying cooling lubricant via the plunger into the roller tool.
  • the head bore can penetrate the tool head concentrically to the longitudinal axis of the tool.
  • the roller shaft has a lubricant channel for lubricating a rotary bearing formed between the roller shaft and the housing. The bearing of the roller shaft and the housing is therefore particularly low in friction and wear.
  • a roller tool according to claim 2 is particularly low in friction and can thus be operated efficiently.
  • the rotary movement about the longitudinal axis of the tool can be converted into a rotary movement oriented at an inclination, in particular oriented perpendicular to it.
  • the bevel gear and / or the worm gear can be designed as an angular gear.
  • a transmission ratio of the bevel gear and / or the worm gear is preferably at most 5, in particular at most 3, in particular at most 2, in particular at most 1.5.
  • a gear ratio is preferred of the bevel gear and / or the worm gear 1.
  • the rotational movement in the longitudinal axis of the tool can thus be converted into the perpendicularly oriented rotational movement of the roller shaft with particularly little friction.
  • a roller tool according to claim 3 is particularly compact.
  • At least one, in particular at least two, spur gear transmissions are preferably arranged for transmitting the rotary movement between the tool head and the roller body.
  • the at least one spur gear and / or the bevel gear and / or the worm gear, in particular their gears can be dimensioned in a particularly compact manner.
  • a maximum diameter of each pinion of the at least one spur gear is at most as large as a maximum diameter of the at least one roller body.
  • a roller tool according to claim 4 is particularly compact.
  • the roller tool preferably comprises at least one roller shaft for supporting the at least one roller body and at least one, in particular at least two, in particular at least three pinion shafts oriented perpendicular to the longitudinal axis of the tool for supporting at least one pinion.
  • the at least one roller shaft and the at least one pinion shaft are preferably arranged at a distance from one another, in particular along the longitudinal axis of the tool.
  • the at least two shafts can be rotatably mounted on the housing for transmitting the rotary movement.
  • At least one of the shafts in particular the at least one roller shaft and / or the at least one Pinion shaft, a bevel gear notch.
  • the roller shaft and / or the pinion shaft preferably overlap a bevel gear of the bevel gear transmission along their direction of rotation.
  • the roller tool can be dimensioned in a particularly compact manner.
  • a roller tool according to claim 5 is particularly robust and safe to operate.
  • the safety coupling can serve to avoid damage to the machine tool and / or to the roller tool.
  • the safety clutch can have a drive part and an output part.
  • the drive part can be rotatably connected to the tool head via a head coupling connection, in particular via a feather key connection.
  • the safety clutch can be reversibly displaceable between a closed position and an open position. In the closed position, the driven part is preferably connected to the drive part so that it can be driven in rotation.
  • the safety clutch is preferably designed to be self-triggering. If the maximum transmissible torque is exceeded, the self-releasing safety clutch is shifted from the locked position to the open position solely by the applied torque. Damage to the roller tool due to excessive torque transmitted from the tappet to the tool head can thus be prevented. In particular, damage to the machine tool, for example due to blocking of the at least one roller body, can also be avoided.
  • a maximum torque that can be transmitted via the safety clutch is preferably adjustable.
  • the safety clutch can have a clutch spring, for example.
  • the clutch spring can be continuously pretensioned, in particular by means of a spring nut.
  • the safety clutch is preferably designed as a load-separating, in particular residual torque-free, or as a load-holding, in particular frictional, clutch.
  • the safety clutch has a trigger sensor for detecting a displacement of the safety clutch from a closed position into an open position.
  • a roller tool according to claim 6 is particularly robust and safe to operate.
  • the direct connection is to be understood in particular to mean that there is no torque-speed conversion between the tool head and the drive part.
  • the drive part is preferably connected to the safety clutch free of gear and / or non-rotatably, in particular rigidly.
  • the driven part can be connected to the at least one roller body in a rotationally drivable manner. Arranging the safety coupling directly on the tool head prevents damage on the output side of the roller tool, in particular damage to the bevel gear and / or the spur gear or blocking of the at least one roller body, from overloading components on the drive side. Damage to a tappet drive of the machine tool can thus be reliably prevented.
  • a roller tool according to claim 7 ensures a precise and efficient forming of the sheet.
  • the roller device preferably comprises at least one, in particular at least two, in particular at least three, in particular at least five, in particular transverse to the longitudinal axis of the tool, rotatably mounted secondary roller body. This advantageously achieves the fact that workpiece forming can also be carried out precisely along a strongly curved forming path.
  • the at least one secondary roller body can be arranged at a distance from the roller body.
  • a roller sleeve can be arranged between the roller body and the at least one secondary roller body.
  • the at least one secondary roller body can be arranged directly next to the roller body.
  • a peripheral contour of the at least one roller body and / or of the at least one secondary roller body preferably corresponds to a shape to be transferred to the sheet metal.
  • the at least one secondary roller body is preferably not driven.
  • a roller tool according to claim 8 is particularly efficient and can be operated with little wear.
  • the roller shaft preferably comprises a lubricant reservoir in the form of a central bore.
  • the lubricant channel created in the roller shaft can connect the lubricant reservoir in a lubricant-conducting manner to a bearing point of the roller shaft and / or the at least one secondary roller body and / or the roller sleeve.
  • the invention is also based on the object of providing a roller tool system which can be dimensioned compactly and is particularly robust and flexible in operation. Furthermore, a roller tool system is to be created, which is designed for forming sheet metal with a particularly small sheet metal wall thickness or a particularly large sheet metal wall thickness.
  • the counter roller tool preferably comprises at least one, in particular at least two, in particular at least three, in particular at least five counter rollers rotatably mounted on a counter roller axis.
  • the at least one counter roller is preferably designed as a shaped roller.
  • the at least one form roller is characterized in that it has a circumferential geometry which can be transferred to the sheet during the forming process.
  • the at least one roller body and / or the at least one secondary roller body can also be designed as a shaped roller.
  • the at least one counter roller can be designed as a counter roller body.
  • the at least one counter roller body is characterized in that it is designed to guide the sheet, in particular to hold the sheet down, during the forming.
  • the at least one counter roller can be driven in rotation.
  • the counter roller tool can have a counter roller drive which is connected to the at least one counter roller in a rotationally drivable manner.
  • the invention is also based on the object of improving a method for the linear shaping of a metal sheet.
  • the advantages of the method according to the invention correspond to the advantages of the roller tool or the roller tool system already described.
  • Pulling and / or pushing sheet metal displaced relative to the roller tool A pulling displacement of the sheet is understood to mean that the sheet is pulled in the direction away from the roller tool.
  • Pushing processing means that the sheet is pushed in the direction of the roller tool.
  • the sheet metal can be fastened to a positioning device, in particular a sheet metal clamping device, of the machine tool. During the pulling process, the sheet metal clamping device is moved away from the roller tool. During pushing processing, the sheet metal clamping device is moved in the direction of the roller tool.
  • the sheet metal clamping means can be moved parallel to the machining direction for moving the sheet metal relative to the roller tool.
  • a method according to claim 11 ensures a particularly precise processing of the sheet.
  • the rotating drive of the roller body can be coupled to the displacement of the sheet relative to the roller tool.
  • the tappet drive and the positioning device can be in signal connection with a control device of the machine tool.
  • the index drive for rotating the roller tool system about the longitudinal tool axis is preferably also in signal connection with the control device.
  • the index drive and / or the plunger drive and / or a positioning drive of the positioning device are operated in a coordinated manner by means of the control device.
  • the rotational movement of the roller body and the orientation of the axis of rotation of the roller body can thus be matched to the movement of the sheet metal relative to the roller tool.
  • a buckling and / or wrinkling of the sheet can thus be reliably prevented even with high degrees of deformation.
  • a method according to claim 12 is particularly robust in operation.
  • the safety clutch is preferably transferred from the closed position to the open position.
  • the torque transmission between the tool head and the at least one roller body can be interrupted, in particular completely separated or reduced to a constant residual torque.
  • a machine tool 1 as in the Fig. 1 comprises a frame structure 2, a machine turret 3 connected thereto for receiving processing tools 4, a processing table 5 for carrying a sheet 6 to be processed and a positioning device 7 for displacing the sheet 6 relative to the processing table 5.
  • the positioning device 7 comprises a positioning drive 8 which is operatively connected to a sheet metal clamping means 9.
  • the sheet 6 is reversibly attached to the sheet clamping device 9 and can be displaced relative to the processing table 5 by means of the positioning drive 8.
  • An actuating means 11 with a plunger 12 is arranged on an upper frame part 10 of the frame structure 2.
  • the actuating means 11 interacts with the respective machining tool 4 arranged below it via the plunger 12.
  • the plunger 12 can be displaced in the vertical direction in order to exert a contact force F on the machining tool 4 and for transmitting a rotary movement to the machining tool 4 about a vertical axis.
  • the machine turret 3 is rotatably mounted on the frame structure 2. By rotating the machine turret 3, different machining tools 4 can be arranged under the actuating means 11.
  • the machining tool 4 arranged under the actuating means 11 is designed as a roller tool system 13.
  • the roller tool system 13 comprises a roller tool 14 and a counter roller tool 15.
  • the sheet 6 is arranged between the roller tool 14 and the counter roller tool 15.
  • the roller tool system 13 is in the Fig. 2 further illustrated in detail.
  • the roller tool 14 has a housing 16, a tool head 18 which is rotatable relative to the housing 16 about a longitudinal axis 17 of the tool and a roller device 19 connected to the housing 16 for interacting with the sheet metal 6.
  • the tool head 18 for reversible interaction with the plunger 12 comprises an abutment surface 20 and a rotary engagement 21.
  • the abutment surface 20 is designed so that the contact pressure F, which is oriented parallel to the longitudinal axis 17 of the tool, can be transmitted from the plunger 12 to the tool head 18 , The rotary movement about the longitudinal axis 17 of the tool can be transferred from the plunger 12 to the tool head 18 via the rotary engagement 21.
  • the rotary engagement 21 is for a form-fitting interaction with the plunger 12 around the longitudinal tool axis 17 as a radial to the longitudinal tool axis 17 extending groove formed.
  • the tool head 18 thus has a keyhole-shaped depression.
  • FIG. 4 A longitudinal section of the roller tool system 13 through the longitudinal tool axis 17 is shown.
  • the tool head 18 is rotatably mounted about the longitudinal axis 17 of the tool via a head bearing 22 on an upper part 23 of the housing 16.
  • the head bearing 22 is designed as a ball bearing.
  • the upper housing part 23 is non-positively connected to a lower housing part by means of a housing screw connection 24.
  • the lower housing part 25 has a housing flange 26 for connection to the machine turret 3.
  • the housing 16 can be driven in rotation about the longitudinal axis 17 of the tool, in particular via the upper housing part 23, relative to the machine turret 3.
  • the tool head 18 is non-rotatably connected to a safety coupling 27.
  • the safety clutch 27 has a drive part 28 and an output part 29.
  • the drive part 28 is connected to the tool head 18 via a head coupling connection 30 in a rotationally fixed connection.
  • the head coupling connection 30 comprises a feather key connection.
  • the safety clutch 27 can be arranged in a closed position and in an open position. In the closed position, the driven part 29 is non-rotatably connected to the drive part 28. In the open position, the driven part 29 can be rotated relative to the drive part 28 about the longitudinal axis 17 of the tool.
  • the safety clutch 27 is designed such that it can be shifted between the closed position and the open position depending on the torque applied to the drive part 28. When a maximum transmissible torque is exceeded, the safety clutch 27 is automatically shifted from the closed position to the open position.
  • the safety clutch 27, in particular the driven part 29, is in a rotationally transmitting connection with a transmission device 32 via a clutch-gear connection 31.
  • the clutch-gear connection 31 comprises a feather key connection for the positive transmission of the rotary movement from the safety clutch 27 to the gear device 32.
  • This gear device 32 has two pinion shafts 33, 34 rotatably mounted on the housing 16, in particular on the lower housing part 25. An axis of rotation of the respective pinion shaft 33, 34 is oriented perpendicular to the longitudinal axis 17 of the tool.
  • the pinion shafts 33, 34 are rotatably mounted on the lower housing part 25 via slide bearing bushes 35. In the axial direction, the pinion shafts 33, 34 are fastened to the lower housing part 25 by means of retaining rings 36.
  • the driven part 29 is connected to the upper pinion shaft 33 via a bevel gear 37 in a rotationally drivable manner.
  • a diameter D KK of a clutch bevel gear 38 arranged on the side of the safety clutch 27 is 15% smaller than a diameter D RK of a side of the upper pinion shaft 33 arranged pinion bevel gear 39.
  • the pinion bevel gear 39 is positively connected to the upper pinion shaft 33 via a key connection.
  • the upper pinion shaft 33 has an upper spur gear 40 which is connected to it in a rotationally fixed manner and the lower pinion shaft 34 has a lower spur gear 41 which is connected to it in a rotationally fixed manner.
  • a diameter D OS of the upper spur gear 40 is equal to a lower diameter Dus of the lower spur gear 41.
  • the lower pinion shaft 34 has a bevel gear notch 42 in the region of the pinion bevel gear 39. In a side view towards the axis of rotation of the lower pinion shaft 34, the lower pinion shaft 34 and the pinion bevel gear 39 overlap each other.
  • the gear mechanism 32 comprises a roller shaft 43 rotatably mounted on the housing 16, in particular on the lower housing part 25.
  • the roller shaft 43 is fixed axially on the lower housing part 25 by means of retaining rings 36.
  • the roller shaft 43 is connected to the lower pinion shaft 34 in a rotationally drivable manner via a roller pinion 44 connected to it in a rotationally fixed manner and the lower spur gear 41.
  • the roller device 19 comprises a roller body 45.
  • the roller body 45 is connected to the roller shaft 43 in a rotationally fixed manner via a feather key connection.
  • the roller body 45 is connected to the tool head 18 in a rotationally drivable manner via the gear mechanism 32 and the safety clutch 27.
  • the roller body 45 has a hardened metallic surface.
  • the roller device 19 has a roller sleeve 46 and a secondary roller body 47.
  • the roller sleeve 46 and the secondary roller body 47 are rotatably mounted on the roller shaft 43.
  • the secondary roller body 47 has a surface made of a hardened metallic material for interacting with the sheet 6.
  • the tool head 18 has a head bore 48 for supplying cooling lubricant from the tappet 12 to the roller tool 14.
  • the roller shaft 43 comprises a lubricant channel 49.
  • the lubricant channel 49 comprises a central bore 50 arranged concentrically to the roller shaft 43 and radially between the central bore 50 and the lower housing part 25, the roller sleeve 46 and the secondary roller body 47, branch channels 51.
  • a lubricating nipple 52 for introducing lubricant into the lubricant channel 49 is arranged on the central bore 50.
  • the counter roller tool 15 comprises a counter roller axis 53.
  • the counter roller axis 53 is attached to a counter housing 54 in a rotationally fixed manner.
  • a form roller 55 and two counter roller bodies 56, 57 arranged adjacent thereto are rotatably mounted on the counter roller axis 53.
  • the form roller 55 and the two counter roller bodies 56, 57 are designed to interact with the sheet 6.
  • the form roller 55 and the counter roller bodies 56, 57 have a hardened metallic surface.
  • the counter roller axis 53 comprises a counter lubricant channel 58 which is connected to the form roller 55 and the counter roller bodies 56, 57. Lubricant can be introduced into the counter-lubricant channel 58 via a lubricating nipple 52.
  • the counter housing 54 is rotatably mounted on the machine tool 1 relative to the machine turret 3. By means of the index drive, the counter housing 54 can be driven in rotation via a drive engagement 59.
  • the operation of the roller tool system 13 with the roller tool 14 and the counter roller tool 15 is as follows:
  • the roller tool system 13 is initially arranged in a reset position. In the reset position, the roller tool system 13 is arranged below the actuating means 11, the tool head 18 being arranged below the plunger 12.
  • the plate 6 is between the roller tool 14 and the counter roller tool 15.
  • the roller tool 14 is arranged, in particular in the vertical direction, at a distance from the sheet 6.
  • the sheet 6 By actuating the positioning device 7, the sheet 6 is displaced relative to the roller tool system 13. A region of the sheet 6 to be machined is arranged in the vertical direction above the form roller 55.
  • the roller tool 14 is displaced downwards in the vertical direction by means of the plunger 12.
  • the plunger 12 interacts with the abutting surface 20 of the tool head 18.
  • the pressing force F is transmitted from the plunger 12 to the sheet 6.
  • the roller tool 14 is in the working position.
  • the sheet 6 is guided between the roller body 45 and the first counter roller body 56 and between the secondary roller body 47 and the second counter roller body 57.
  • the sheet 6 is formed by means of the form roller 55.
  • the sheet 6 For linear shaping of the sheet 6, it can be displaced relative to the roller tool system 13 by means of the positioning device 7.
  • the plate 6 is displaced substantially perpendicular to the longitudinal tool axis 17 and the axis of rotation of the roller shaft 43 relative to the roller tool system 14.
  • the sheet metal clamping means 9 can be displaced in any direction relative to the roller tool system 13, in particular in the direction of the roller tool system 13.
  • the sheet 6 By displacing the sheet 6 relative to the roller tool system 13 arranged in the working position along a forming path 60, the sheet 6 is formed, in particular in a bead shape.
  • the roller body 45, the secondary roller body 47, the first counter roller body 56, the second counter roller body 57 and the shaping roller 55 roll here on the sheet 6.
  • the forming path 60 is curved.
  • the rotary movement is transmitted from the plunger 12 to the tool head 18 via the rotary engagement 21.
  • the rotary movement is transmitted from the tool head 18 to the roller body 45 via the safety coupling 27 and the gear mechanism 32.
  • the rotational movement of the roller body 45 is coordinated with the displacement of the sheet 6 relative to the roller tool system 13.
  • the rotational movement of the roller body 45 is coordinated with the rotational movement of the roller tool system 13 relative to the sheet 6.
  • the index drive, the actuating means 11 and the positioning device 7 are in signal connection with a control device of the machine tool 1.
  • the roller body 45 is driven such that a peripheral rolling speed of the roller body 45 is smaller or greater than a relative speed of the roller tool system 13 in the region of the longitudinal tool axis 17 relative to the sheet metal 6.
  • the peripheral rolling speed corresponds to straight sections of the forming path 60 the relative speed between the sheet 6 and the roller tool system 13.
  • Cooling lubricant is supplied to the roller tool system 13 via the head bore 48 during the forming process. To reduce friction and wear, lubricant is applied via the lubricant channel 49 and the counter-lubricant channel 58 between the roller shaft 43 and the roller sleeve 46, the secondary roller body 47 and the lower housing part 25 and between the counter roller axis 53 and the counter roller bodies 56, 57 and the forming roller 55.
  • the safety clutch 27 When a maximum torque that can be transmitted between the tool head 18 and the roller body 45, in particular between the drive part 28 and the driven part 29, is exceeded, the safety clutch 27 is shifted from the closed position into the open position. In the open position, the drive part 28 is rotatable relative to the driven part 29, the transmission of the rotary movement between the tool head 18 and the roller body 45 being interrupted.
  • the roller tool system 13 with the roller body 45 which can be driven via the tool head 18 is of compact dimensions, robust in operation and can be used particularly flexibly.
  • the roller tool system 13 enables the sheet-like forming of the sheet 6 along the straight and / or curved forming path 60 in a flexible and reliable manner, in particular sheets 6 with a particularly small sheet wall thickness t of at most 0.5 mm and sheets 6 with a particularly large sheet wall thickness t of are formable at least 2.5 mm.
  • the roller tool system 13 can be used to deform the sheet 6 in any direction can be displaced relative to the sheet metal clamping means 9, in particular in the direction of the sheet metal clamping means 9, without the sheet 6 being buckled or wrinkled.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Press Drives And Press Lines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP19184382.0A 2018-07-10 2019-07-04 Outil à rouleaux pour une machine-outil, système d'outil à rouleaux et procédé de formage linéaire d'une tôle Active EP3593918B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018211351.3A DE102018211351A1 (de) 2018-07-10 2018-07-10 Rollenwerkzeug für eine Werkzeugmaschine

Publications (2)

Publication Number Publication Date
EP3593918A1 true EP3593918A1 (fr) 2020-01-15
EP3593918B1 EP3593918B1 (fr) 2021-03-24

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EP19184382.0A Active EP3593918B1 (fr) 2018-07-10 2019-07-04 Outil à rouleaux pour une machine-outil, système d'outil à rouleaux et procédé de formage linéaire d'une tôle

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US (1) US11267028B2 (fr)
EP (1) EP3593918B1 (fr)
DE (1) DE102018211351A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10457124B2 (en) 2017-08-18 2019-10-29 Roll-N-Lock Corporation Modified retractable tonneau cover
US11220163B2 (en) 2018-10-26 2022-01-11 Roll-N-Lock Corporation Vehicle rack assembly
US11654978B2 (en) 2019-11-04 2023-05-23 Lund Motion Products, Inc. Vehicle rack assembly

Citations (7)

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Publication number Priority date Publication date Assignee Title
US5156034A (en) 1988-08-30 1992-10-20 K.P.G. Integrated Engineering Pty. Ltd. Contouring of metal sheets
EP0714720A1 (fr) 1994-10-22 1996-06-05 Trumpf GmbH & Co Machine pour estamper et couper
DE102005003558A1 (de) 2005-01-26 2006-07-27 Pass Stanztechnik Ag Rollenwerkzeug zur linienhaften Blechverformung sowie Blechverformungsvorrichtung mit einem derartigen Rollenwerkzeug
DE202005021005U1 (de) * 2005-01-26 2006-12-28 Pass Stanztechnik Ag Rollenwerkzeug zur linienhaften Blechverformung sowie Blechverformungsvorrichtung mit einem derartigen Rollenwerkzeug
US20070105488A1 (en) * 2004-04-26 2007-05-10 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tools, machines and processes for deburring cut edges on workpieces
DE102006049045A1 (de) 2006-10-18 2008-04-24 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeug zum Bearbeiten von plattenartigen Werkstücken
DE102014224094A1 (de) * 2014-11-26 2016-06-02 Pass Stanztechnik Ag Mehrfachwerkzeug

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Publication number Priority date Publication date Assignee Title
US1401260A (en) * 1917-08-15 1921-12-27 Iversen Lorenz Gear-drive for rolling-mills
US5787775A (en) * 1994-04-08 1998-08-04 Finn-Power International, Inc. Multidirectional cutting tool in a punch press environment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5156034A (en) 1988-08-30 1992-10-20 K.P.G. Integrated Engineering Pty. Ltd. Contouring of metal sheets
EP0714720A1 (fr) 1994-10-22 1996-06-05 Trumpf GmbH & Co Machine pour estamper et couper
US20070105488A1 (en) * 2004-04-26 2007-05-10 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Tools, machines and processes for deburring cut edges on workpieces
DE102005003558A1 (de) 2005-01-26 2006-07-27 Pass Stanztechnik Ag Rollenwerkzeug zur linienhaften Blechverformung sowie Blechverformungsvorrichtung mit einem derartigen Rollenwerkzeug
DE202005021005U1 (de) * 2005-01-26 2006-12-28 Pass Stanztechnik Ag Rollenwerkzeug zur linienhaften Blechverformung sowie Blechverformungsvorrichtung mit einem derartigen Rollenwerkzeug
DE102006049045A1 (de) 2006-10-18 2008-04-24 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeug zum Bearbeiten von plattenartigen Werkstücken
DE102014224094A1 (de) * 2014-11-26 2016-06-02 Pass Stanztechnik Ag Mehrfachwerkzeug

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DE102018211351A1 (de) 2020-01-16
EP3593918B1 (fr) 2021-03-24
US11267028B2 (en) 2022-03-08
US20200016642A1 (en) 2020-01-16

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