Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
  • B21J15/00—Riveting
  • B21J15/02—Riveting procedures
  • B21J15/04—Riveting hollow rivets mechanically
  • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
  • B21J15/00—Riveting
  • B21J15/10—Riveting machines
  • B21J15/105—Portable riveters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
  • B21J15/00—Riveting
  • B21J15/10—Riveting machines
  • B21J15/16—Drives for riveting machines; Transmission means therefor
  • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
  • B21J15/00—Riveting
  • B21J15/10—Riveting machines
  • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
  • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
  • B21J15/326—Broken-off mandrel collection
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
  • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor

Definitions

• Rivet attachment devices for setting blind rivets for use with a machine tool have already been proposed.
• a rivet attachment device for setting blind rivets, with at least one connection unit for non-rotatable attachment to a machine tool, with a fixing unit, in particular a mouthpiece, for receiving a rivet mandrel during a riveting process, and with at least one removal unit for removing the rivet mandrel in a pull-off direction, wherein the pull-off unit is provided to pull the rivet mandrel completely through the fixing unit after the rivet mandrel has been pulled off in the pull-off direction.
• the rivet attachment device is preferably intended for use with a machine tool.
• the rivet attachment device comprises at least one component which can be driven to transmit a drive force to the puller unit via a drive element of the machine tool.
• the pull-off unit comprises at least one pull-off element, which is provided for a positive and/or non-positive engagement on a rivet mandrel for pulling off the rivet mandrel in the pull-off direction.
• “Form-fitting” is to be understood in particular as meaning that surfaces of components that are connected to one another in a form-fitting manner, in particular the at least one pulling element and the rivet mandrel, exert a holding force on one another acting in a normal direction of the surfaces.
• the components are in a geometric engagement with one another.
• non-positive should be understood in particular to mean that the surfaces of components that are positively connected to one another, in particular the at least one pull-off element and the rivet mandrel, exert a holding force on one another that acts perpendicularly to a normal direction of the surfaces, preferably via a frictional force between the components.
• the at least one pull-off element is intended to be moved in the pull-off direction, in particular after positive and/or non-positive engagement with a rivet mandrel, with the rivet mandrel being moved in the pull-off direction from a base body of a rivet blank when a specific pull-off force and/or pull-off distance is reached breaks off and/or breaks off.
• Provided is to be understood in particular as being specially designed and/or specially equipped.
• the fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
• connection unit is preferably provided for interaction with a connection unit of the machine tool, with the rivet attachment device in particular being non-rotatable via the connection unit, in particular relative to an axis aligned at least essentially parallel to the removal direction, to a central axis of the removal unit and/or to an insertion direction of the connection unit attached to the machine tool.
• “Substantially parallel” means in particular an alignment of a straight line, a plane or a direction, in particular the aforementioned axis, relative to another straight line, another plane or a reference direction, in particular the pulling direction, the central axis of the pulling unit and/or the Push-on direction of the connecting unit, the straight line, the plane or the direction compared to the other straight line, the other plane or the reference direction, viewed in particular in a projection plane, has a deviation of in particular less than 8°, advantageously less than 5° and especially advantageously less than 2°.
• the pull-off direction is preferably arranged at least essentially parallel to the central axis of the pull-off unit and/or to the push-on direction of the connection unit.
• connection unit is intended to be arranged on the machine tool via a movement in the plug-on direction, in particular via at least one subsequent movement of the connection unit, in particular a connection element of the connection unit, about an at least essentially parallel to the removal direction, to a central axis of the removal unit and/or or the rivet attachment device is fastened to the machine tool in an axis aligned with an attachment direction of the connection unit.
• connection unit comprises at least one closure element, which is provided to secure the connection unit in a state in which it is fastened to the machine tool.
• the connection unit is designed as part of a Flexi CI ick fastening system.
• the fixing unit preferably comprises at least one receiving element for receiving the rivet mandrel, preferably before the rivet mandrel is pulled off.
• the receiving element delimits at least one recess for receiving the rivet mandrel and for guiding the rivet mandrel through after the rivet mandrel has been pulled off.
• the recess is preferably arranged centrally around the central axis of the stripping unit.
• the fixing unit is preferably provided to be placed at least partially on a rivet blank and/or a workpiece to be riveted during a riveting process, preferably via the receiving element and/or an actuating element of the fixing unit.
• the fixing unit is provided for receiving the rivet mandrel along the central axis in the pull-off direction, with the rivet mandrel in particular being brought up to the at least one pull-off element.
• the pull-off unit is preferably provided to move the rivet mandrel through the recess after the rivet mandrel has been pulled off when the rivet mandrel is completely retracted by the fixing unit over a complete longitudinal extension of the rivet mandrel along the central axis of the pull-off unit, with the rivet mandrel in particular being spaced apart from the receiving element is arranged.
• the pull-off unit comprises more than one, in particular exactly two, pull-off element(s).
• the stripping elements are preferably arranged distributed around the central axis of the stripping unit, in particular at least substantially uniformly.
• the pull-off elements are offset from one another by 180° around the center axis of the pull-off unit.
• the pull-off elements of the pull-off unit are designed at least essentially in the same way.
• the rivet cap device includes a reset device.
• the restoring device at least partially includes the pull-off unit, in particular the at least one pull-off element, the restoring unit, in particular at least one force transmission element of the restoring unit, and the fixing unit.
• the configuration of the rivet attachment device according to the invention enables an advantageously faster riveting process, in particular since holding the rivet attachment device on the machine tool and removing the torn-off rivet mandrel at the front from the fixing unit can advantageously be omitted.
• An advantageously high level of safety can be achieved during a riveting process, in particular since the rivet attachment device can be permanently mounted on the machine tool independently of a user. It is advantageously possible to prevent torn off rivet mandrels from falling out of a receiving area of the fixing unit.
• An advantageously rapid transition to a further riveting process can be achieved, in particular since a receiving area of the fixing unit is free again directly after a rivet mandrel has been torn off.
• the rivet attachment device comprises at least one return unit, with the pull-off unit at least one, in particular the pull-off element(s) mentioned above, for positive and/or non-positive engagement with the rivet mandrel for pulling off the rivet mandrel in the pull-off direction, the resetting unit being provided for the purpose of resetting the at least one pull-off element, after the rivet mandrel has been pulled off, to carry out a further riveting process, at least essentially automatically, into a ready-to-receive state of the at least one pull-off element.
• a further riveting process at least essentially automatically
• At least one pull-off element is provided to be moved at least essentially parallel to the central axis of the pull-off unit and/or in the pull-off direction when the rivet mandrel is pulled off, in particular at least partially together with the rivet mandrel.
• the resetting unit is preferably provided to move the at least one pull-off element in a reset direction opposite to the pull-off direction in order to at least essentially automatically reset the at least one pull-off element into the ready-to-take state.
• the reset direction is parallel to the peeling direction and opposite to the peeling direction.
• the reset direction is preferably antiparallel to the peeling direction.
• “Essentially independently” is to be understood in particular as meaning that an activity or function, in particular the resetting of the at least one pull-off element into the readiness state after a rivet mandrel has been pulled off, takes place without any additional activity on the part of the user and/or without a change in drive direction.
• the resetting unit is provided to reset the at least one pull-off element automatically, at least essentially independently, into the ready-to-take state after a rivet mandrel has been pulled off.
• the return unit is intended to wait for a user interaction, for example a brief actuation of a trigger of the machine tool or an actuation of an actuating element of the rivet attachment device, after a rivet mandrel has been pulled off by the pull-off unit, and after the user interaction has taken place, preferably without a change a drive direction, to reset the at least one pull-off element at least essentially independently into the ready-to-take state.
• a user interaction for example a brief actuation of a trigger of the machine tool or an actuation of an actuating element of the rivet attachment device
• a "ready-to-receive state” is to be understood in particular as a state of the at least one pull-off element in which the pull-off element can positively and/or non-positively engage a rivet mandrel received via the fixing unit in order to pull off a rivet mandrel in the pull-off direction, with the at least one pull-off element in the pull-off direction is movable.
• the at least one pull-off element is preferably arranged at a distance from a rivet mandrel picked up via the fixing unit or, in the ready-to-take state, lies against the rivet mandrel picked up via the fixing unit, with preferably no form- and/or force-sensitive there is a positive connection between the at least one pull-off element and the rivet mandrel.
• the at least one pull-off element in the ready-to-take state, acts on a rivet mandrel received via the fixing unit, the pull-off element having not yet been moved in the pull-off direction together with the rivet mandrel.
• the pull-off unit has a pull-off section.
• the pull-off distance is preferably a distance along which the at least one pull-off element is moved with a rivet mandrel connected to the pull-off element in a positive and/or non-positive manner in order to pull off the rivet mandrel.
• the pull-off section is preferably at least essentially straight.
• the pull-off distance is aligned at least essentially parallel to the pull-off direction and/or to the central axis of the pull-off unit. It is conceivable for the at least one pull-off element to be arranged in the ready-to-take state at an end of the pull-off path that is opposite to the pull-off direction.
• the pull-off element is preferably provided to be moved along the pull-off path in the pull-off direction for pulling off the rivet mandrel together with the rivet mandrel which is positively and/or non-positively connected to the at least one pull-off element.
• the at least one pull-off element in particular as an alternative to a movement along the pull-off path, is intended to be moved in a rotating manner in order to pull off the rivet mandrel, with the at least one pull-off element being intended to move automatically via the reset unit when the rivet mandrel is pulled off to be reset to the record-ready state.
• An advantageously simple and cost-effective configuration of the resetting unit can be made possible.
• an advantageously simple and quick assembly and maintenance of the rivet attachment device can be achieved.
• the at least one pull-off element preferably comprises at least one pull-off surface, which is provided for engaging a rivet mandrel to be pulled off in a positive and/or non-positive manner.
• the pull-off surface is preferably provided to move at least partially together with the rivet mandrel in the pull-off direction when a rivet mandrel is pulled off.
• the at least one pull-off element preferably has an axis of rotation which is arranged in particular at a distance from the central axis of the pull-off unit.
• the axis of rotation of the at least one pull-off element is at least aligned obliquely, in particular at an angle of more than 8°, to the central axis of the pull-off unit and/or to the pull-off direction.
• the axis of rotation of the at least one pull-off element is aligned at least essentially perpendicular to the pull-off direction and/or to the central axis of the pull-off unit.
• “Essentially perpendicular” means, in particular, an orientation of a straight line, a plane or a direction, in particular the axis of rotation of the at least one pull-off element, relative to another straight line, another plane or a reference direction, in particular the pull-off direction and/or the central axis of the pull-off unit , where the straight line, the plane or the direction and the other straight line, the other plane or the reference direction, viewed in particular in a projection plane, enclose an angle of 90° and the angle has a maximum deviation of in particular less than 8°, advantageously less than 5° and particularly advantageously less than 2°.
• the at least one pull-off element is preferably designed as part of the reset unit and is intended to reset itself at least essentially automatically into the ready-to-take state when it moves about the axis of rotation.
• the at least one pull-off surface is preferably provided to be moved about the axis of rotation when the at least one pull-off element moves about the axis of rotation.
• the at least one pull-off surface is preferably provided at least at one point along a stretch of the pull-off surface during a movement about the axis of rotation to positively and/or non-positively engage a rivet mandrel arranged on the central axis of the pull-off unit and/or a rivet mandrel held via the fixing unit.
• the pull-off surface has a circular contour when viewed in a sectional plane of the at least one pull-off element having the pull-off surface, which is oriented perpendicularly to the axis of rotation and/or encompasses the central axis of the pull-off unit, with the pull-off surface in particular being provided for this purpose, regardless of a position of the pull-off element to engage positively and/or non-positively on a rivet mandrel arranged on the central axis of the pull-off unit and/or on a rivet mandrel accommodated via the fixing unit.
• the at least one pull-off element is in the form of a gear wheel, a roller or a cylinder.
• the pull-off element(s) are each designed as a chuck jaw.
• the at least one pull-off element, preferably on the pull-off surface has teeth and/or a Has adhesive coating and / or is roughened, preferably to a positive and / or non-positive fit with a rivet mandrel.
• the pull-off element(s), in particular pull-off surfaces of the pull-off elements, preferably enclose(s) in at least one operating state, in particular when arranged on a rivet mandrel, the center axis of the pull-off unit viewed in a plane oriented perpendicular to the center axis of the pull-off unit together over an angular range of at least 120°, preferably at least 220° and preferably at least 300° around the central axis of the drawing unit.
• the rivet attachment device comprises at least one collection container for collecting rivet mandrels drawn in via the pull-off unit.
• Accidental falling of torn off rivet mandrels in the working area can advantageously be prevented.
• An advantageously high level of occupational safety can be achieved.
• the collection container is preferably arranged at least for the most part, in particular at least essentially completely, behind the fixing unit, in particular the receiving element, along the peeling-off direction.
• the collection container is integrated into a housing of the rivet attachment device, wherein in particular at least one housing outer wall of the rivet attachment device at least partially forms the collection container.
• the collection container is designed to be removable.
• the collection container includes a removal opening for emptying the collection container.
• the rivet attachment device comprises at least one closure element for opening and closing the removal opening.
• the rivet attachment device preferably comprises at least one feeder, which is provided for guiding rivet mandrels that have been pulled off via the pulling unit and that have been drawn in completely through the fixing unit, in particular in the pulling direction, from a position on the central axis of the pulling unit into the collection container.
• the collection container is preferably arranged on an underside of the rivet attachment device, preferably below the pull-off unit, the connection unit and/or the reset unit.
• the pull-off unit is preferably provided to discharge the rivet mandrel into the feed after the rivet mandrel has been pulled off.
• the pull-off unit and/or the restoring unit limit/limit an opening for dispensing the rivet mandrel after the rivet mandrel has been pulled off.
• the extraction unit is provided to the rivet mandrel after a Detaching the rivet mandrel from the at least one pull-off element, wherein the rivet mandrel, preferably by gravity, falls through the opening via the feed into the collection container.
• the rivet attachment device comprises at least one actuator element, for example a spring or the like, which is intended to actuate a pulled rivet mandrel, for example depending on a position of the rivet mandrel along the central axis of the pull-off unit, by means of a force in the direction of the To move collection container or in the collection container.
• a pulled rivet mandrel is subjected to a force by means of compressed air to move it into the collection container.
• the collection container be arranged at a distance from a central axis, in particular the aforementioned central axis, of the stripping unit.
• An advantageously compact configuration of the rivet attachment device can be made possible.
• gravity can be used to transport the torn-off rivet mandrels into the collection container.
• the collection container is preferably provided to receive a rivet mandrel obliquely or at least essentially to the direction of removal after the rivet mandrel has been pulled off.
• the opening delimited by the pull-off unit and/or the restoring unit is arranged at a distance from the central axis of the pull-off unit.
• the opening delimited by the extraction unit and/or the restoring unit is preferably arranged relative to the central axis of the extraction unit in a direction that is radial to the central axis of the extraction unit and faces the collection container.
• the feed preferably extends at least obliquely, in particular at an angle of more than 8°, to the center axis of the stripping unit, preferably from the center axis of the stripping unit to the collection container.
• the collection container is arranged at least partially or centrally on the central axis of the pull-off unit.
• the pull-off unit and/or the restoring unit are/is designed in such a way that a drive force is transmitted from one drive element, in particular the aforementioned drive element, to the at least one pull-off element of the pull-off unit and the at least one pull-off element is reset at least essentially independently into the ready-to-take state takes place purely mechanically.
• An advantageously simple and cost-effective configuration of the rivet attachment device can be made possible. Compatibility of the rivet attachment device with an advantageously large number of, in particular already existing, machine tools can be achieved. An advantageously robust configuration of the rivet attachment device can be made possible.
• no electrical and/or electronic signals are provided for the transmission of the drive force and the at least essentially automatic resetting of the at least one pull-off element into the ready-to-take state.
• the pull-off unit and/or the restoring unit are/is designed in such a way that any forces between components of the pull-off unit and the restoring unit for transmitting the driving force and for at least essentially automatically resetting the at least one pull-off element into the ready-to-take state are transmitted via a mechanical force transmission.
• the pull-off unit and the reset unit are designed without electrical and/or electronic components, for example cables, electronic circuit boards, electric motors, sensors, etc.
• connection unit has at least one central axis and a plurality of possible fastening positions around the central axis, the connection unit being intended to be fastened to the machine tool in one of the plurality of possible fastening positions.
• an arrangement of the collection container on a sub- side of the rivet attachment device are advantageously guaranteed, preferably for a transport of torn rivet mandrels in the collection container under the influence of gravity.
• the central axis of the connection unit is aligned at least essentially parallel to the central axis of the pull-off unit.
• the push-on direction of the connection unit extends at least essentially parallel to the central axis of the connection unit.
• a number of possible attachment positions of the connection unit of the rivet attachment device on the machine tool is preferably at least 4, preferably at least 12 and preferably at least 16.
• connection unit of the rivet attachment device on the machine tool preferably comprises a plurality of fastening means, for example latching projections, recesses or the like, which are each provided for connection to exactly one fastening element of the machine tool.
• a number of the fastening means of the connection unit preferably amounts to at least a number of the possible fastening positions of the connection unit of the rivet attachment device on the machine tool.
• the fastening means are distributed evenly around the central axis of the connection unit.
• other configurations of the connection unit are also conceivable.
• the rivet attachment device comprises at least one output unit for outputting, in particular haptically, acoustically and/or optically, a position of the puller unit, in particular at least one puller element of the puller unit, along the puller direction and/or the reset unit.
• An advantageously high degree of user-friendliness can be made possible when carrying out a number of riveting processes.
• An advantageously intuitive operation of the rivet attachment device can be achieved, in particular since a user can be signaled directly whether and/or when the rivet attachment device is ready for a next riveting operation.
• the output unit is preferably provided to indicate to a user the position of the peeling unit, in particular at least one peeling element of the peeling unit, along the peeling direction and/or the restoring unit.
• the dispensing unit is at least partially formed in one piece with the housing, in particular an outer wall of the housing, of the rivet attachment device.
• the dispensing unit preferably includes at least one viewing passage, which is provided to make the puller unit, in particular the at least one puller element, and/or the reset unit visible at least partially from the outside, in particular outside of the rivet attachment device, for a user of the rivet attachment device.
• the output unit comprises at least one at least partially transparent viewing window, which at least largely, in particular completely, covers and/or fills the viewing passage.
• the viewing window is provided to protect the pull-off unit and/or the reset unit from foreign bodies, such as dirt or the like, penetrating through the viewing passage into the rivet attachment device.
• the viewing passage extends along the peeling direction at least for the most part over a region of the peeling path.
• the dispensing unit comprises more than one viewing passage, which are distributed in particular around the center axis of the extraction unit and are arranged around the extraction unit and/or the return unit on an outer wall of the rivet attachment device.
• the dispensing unit is preferably designed in such a way that the position of the peeling unit, in particular the at least one peeling element of the peeling unit, is output along the peeling direction and/or the reset unit purely mechanically, in particular without electrical and/or electronic components of the dispensing unit.
• the output unit is intended to output the position of the pull-off unit, in particular the at least one pull-off element of the pull-off unit, along the pull-off direction and/or the reset unit acoustically or haptically, for example by means of strong vibrations when a certain distance is exceeded along the pull-off direction by the at least one pull-off element, by a signal generator clicking when a certain distance along the pull-off direction is exceeded by the at least one pull-off element or the like.
• the output unit is at least partially electrically and/or electronically is formed, for example as a piezo element, as a speaker, as an LED or the like.
• the pull-off unit comprises at least one force transmission element for transmitting a drive force for pulling off a rivet mandrel from a drive element of the machine tool or from a drive element of the pull-off unit that can be driven via the machine tool to at least one pull-off element of the pull-off unit that acts on the rivet mandrel
• the fixing unit comprises at least one actuating element, the actuating element being provided to move the at least one force transmission element to a connection with the drive element in the removal direction when actuated by a user, in particular when the actuating element is pressed against a workpiece.
• the at least one force transmission element preferably comprises at least one thread, in particular an internal thread, or a toothing.
• the drive element preferably comprises at least one thread, in particular an external thread, or a tooth system for interaction with the at least one force transmission element.
• the drive element is preferably designed as part of the rivet attachment device.
• the connection unit is preferably provided to transmit a drive force of the machine tool to the drive element.
• the drive element can preferably be moved, in particular driven, about a central axis of the drive element via the drive force.
• the central axis of the drive element is aligned at least essentially parallel to the central axis of the pull-off unit and/or to the central axis of the connection unit.
• the at least one force transmission element is preferably provided to be moved by means of the drive element via the thread or the toothing around the center axis of the drive element or along the center axis of the drive element, with the at least one pull-off element in particular being in the pull-off direction direction or in the reset direction.
• the actuating element is preferably designed in one piece with the receiving element of the fixing unit.
• the actuating element and the receiving element are/is preferably designed in the manner of a sleeve.
• the actuating element is provided to transmit a movement in the removal direction to the at least one force-transmitting element, with the at least one force-transmitting element in particular being moved to the drive element.
• the at least one force transmission element is intended to be connected to the drive element by the internal thread or the teeth when a movement is transmitted via the actuating element in the removal direction and/or obliquely or at least essentially perpendicularly to the removal direction.
• the at least one force transmission element is preferably operatively connected to the at least one pull-off element in at least one operating state, with the at least one pull-off element being moved together with the at least one force-transmission element when the at least one force-transmission element moves along the central axis of the pull-off unit, in particular in the pull-off direction or in the reset direction .
• a position of the at least one pull-off element when the at least one force transmission element is arranged at a distance from the drive element before a movement via the actuating element corresponds to the ready-to-take state of the pull-off element.
• the actuating element is spring-loaded against movement in the removal direction when the actuating element is actuated.
• the puller unit has at least one, in particular the aforementioned, force transmission element, which in particular forms an internal thread, for transmitting a drive force for removing a rivet mandrel from a drive element of the machine tool or from a drive element of the puller unit that can be driven via the machine tool, which in particular forms an external thread, comprises at least one pull-off element of the pull-off unit that acts on the rivet mandrel, wherein the at least one force-transmission element at least essentially completely encloses the drive element for a movement of the at least one force-transmission element in the pull-off direction along the pull-off direction, in particular in a region of the internal thread .
• An advantageously uniform loading of the drive element can be achieved.
• tilting between the drive element and the at least one force transmission element can advantageously be prevented.
• foreign bodies, in particular dirt can advantageously be prevented from penetrating between the drive element and the at least one force transmission element when they interact.
• the at least one force transmission element substantially completely encloses the drive element is to be understood in particular as meaning that the at least one force transmission element encloses the drive element in at least one plane through the at least one force transmission element and the drive element, in particular perpendicular to the center axis of the puller unit and/or of the drive element, over an angular range of at least 340°, preferably at least 350° and preferably at least essentially 360°, around a point within the drive element, in particular on the central axis of the pull-off unit and/or the drive element.
• the at least one peel-off element preferably has at least one peel-off guide surface which is intended to cooperate with at least one further peel-off guide surface of the peel-off unit and/or the fixing unit.
• the at least one pull-off element is preferably intended to be moved via the pull-off guide surface of the pull-off element when the pull-off element moves, in particular together with the at least one force transmission element, in the pull-off direction in the direction of the central axis of the pull-off unit.
• the at least one pull-off element is intended to be applied to a rivet mandrel via the pull-off guide surface of the pull-off element during a movement of the pull-off element, in particular together with the at least one force transmission element, in the pull-off direction, in particular via the pull-off surface.
• the restoring unit is provided in particular for the at least one force transmission element to reset the at least one pull-off element and the at least one force transmission element, in particular in each case, into a basic position at least temporarily, in particular during a movement into the basic position to separate from the drive element.
• the basic position of the at least one pull-off element and the at least one force transmission element preferably corresponds to a position of the at least one pull-off element and the at least one force transmission element when the at least one pull-off element is in the ready-to-take state.
• the pull-off unit preferably comprises at least two, in particular exactly two, force transmission elements.
• the force transmission elements are provided to be moved via the drive element along an axis aligned parallel to the peeling direction, wherein the force transmission elements are provided to be applied to the drive element to transmit the drive force about the central axis of the peeling unit and to be reset by the drive element to be separated.
• the restoring unit preferably comprises at least one guide unit, in particular a guide link, which is provided to separate the at least one force transmission element from the drive element or to apply it to the drive element depending on a position of the at least one force transmission element along an axis aligned parallel to the pull-off direction.
• the actuating element is preferably provided to interact with the at least one force transmission element and/or at least one guide element of the reset unit in at least one operating state to reset the at least one pull-off element and the at least one force transmission element into the basic position(s).
• the restoring unit comprises in particular at least one restoring element, in particular a spring, which is provided for the at least one pull-off element and the at least one force transmission element to at least essentially automatically reset the at least one pull-off element and the at least one force transmission element into the basic position(s) after a Separating the at least one force transmission element from the drive element in a direction opposite to the pull-off direction, in particular the reset direction, with a restoring force.
• the two power transmission elements are preferably each at least partially along a line perpendicular to the central axis of the pull-off for separating from the drive element. hunit aligned axis, in particular relative to each other, movably mounted.
• the pull-off unit and/or the restoring unit preferably comprises at least one further restoring element, which is provided to apply a restoring force to the two force transmission elements to separate them from the drive element, in particular away from the center axis of the pull-off unit, with in particular application of the force transmission elements to the drive element takes place against the restoring force.
• the guide unit comprises at least one guide element, which is provided to, depending on a position of the at least one force transmission element along the axis aligned parallel to the stripping direction, in particular the central axis of the stripping unit, to a movement of the at least one force transmission element relative to the central axis of the stripping unit to interact with at least one guide extension of the at least one force transmission element, with the restoring unit comprising at least one stop which is provided to interact with the guide element in an end position of the at least one force transmission element during or after the rivet mandrel has been pulled off, with the guide element being provided for Cooperation with the stop to be moved relative to the at least one force transmission element.
• the at least one guide element is provided for guiding a movement of the at least one force transmission element relative to the drive element.
• the rivet attachment device according to the invention should not be limited to the application and embodiment described above.
• the rivet attachment device according to the invention can have a number of individual elements, components and units that differs from the number specified here in order to fulfill a function described herein.
• values lying within the specified limits should also be considered disclosed and can be used as desired.
• FIG. 1 shows a schematic representation of a rivet attachment device according to the invention in a cross section
• FIG. 3 shows a schematic sectional view of the rivet attachment device according to the invention in a region of a restoring unit and a pull-off unit of the rivet attachment device in a position before a rivet mandrel is pulled off,
• FIG. 4 shows a schematic sectional view of the rivet attachment device according to the invention in the area of the restoring unit and the pull-off unit in a position after a rivet mandrel has been pulled off
• FIG. 5 shows a schematic sectional view of the rivet attachment device according to the invention in the area of the reset unit and the pull-off unit after force transmission elements of the pull-off unit have been separated from a drive element of the rivet attachment device in order to reset the force transmission elements into a basic position
• FIG. 6 shows a schematic sectional view of the rivet attachment device according to the invention in the area of the reset unit and the pull-off unit in a position when the force transmission elements are reset to the basic position
• FIG. 7 shows a schematic representation of a first alternative embodiment of a rivet attachment device in a cross section, with pull-off elements of a pull-off unit of the rivet attachment device being designed to be rotatable
• 8 shows a schematic representation of a second alternative embodiment of a rivet attachment device in a cross section, wherein the pull-off elements of a pull-off unit of the rivet attachment device are designed as rollers arranged at an angle to a pull-off direction
• FIG. 9 shows a schematic representation of a third alternative embodiment of a rivet attachment device in a cross section, wherein a pull-off unit of the rivet attachment device comprises a system of rollers as pull-off elements and
• FIG. 10 shows a schematic representation of a fourth alternative embodiment of a rivet attachment device in a cross section, with a pull-off unit of the rivet attachment device comprising two circumferential bands as pull-off elements.
• FIG. 1 shows a rivet attachment device 10a for setting blind rivets.
• the rivet attachment device 10a is intended for use with a machine tool 12a (shown only schematically in FIG. 1).
• the machine tool 12a is designed as a cordless screwdriver.
• the rivet attachment device 10a includes a restoring device 14a, which includes in particular a pull-off unit 16a, a restoring unit 18a and a fixing unit 20a.
• the rivet attachment device 10a comprises a housing 22a and a collection container 24a for catching rivet mandrels 26a drawn in via the pull-off unit 16a.
• the collection container 24a is detachably arranged on the housing 22a.
• the collection container 24a is attached to the housing 22a via a connection interface.
• the collection container 24a is formed in one piece with the housing 22a.
• the collection container 24a is arranged on an underside of the rivet attachment device 10a.
• the rivet attachment device 10a also includes a connection unit 28a for non-rotatable attachment to the machine tool 12a.
• the pull-off unit 16a is provided for pulling off a rivet mandrel 26a in a pull-off direction 30a.
• the Extraction unit 16a comprises a central axis 32a, with the fixing unit 20a in particular being provided for receiving a rivet mandrel 26a along the central axis 32a of the extraction unit 16a, with the extraction unit 16a being provided for removing the rivet mandrel 26a along the central axis 32a of the extraction unit 16a.
• the rivet mandrel 26a is separated, in particular torn off, from a base body of a blind rivet, with the base body being deformed and two workpieces to be riveted connected to one another, in particular riveted.
• the pull-off unit 16a is provided to pull the rivet mandrel 26a completely through the fixing unit 20a in the pull-off direction 30a after the rivet mandrel 26a has been pulled off.
• connection unit 28a is designed as part of a FlexiClick fastening system.
• the connection unit 28a has a center axis 34a and a plurality of possible fastening positions about the center axis 34a of the connection unit 28a, the connection unit 28a being intended to be fastened to the machine tool 12a in one of the plurality of possible fastening positions.
• connection unit 28a is intended to interact with a connection unit 28a of the machine tool 12a, in particular the rivet attachment device 10a via the connection unit 28a, in particular relative to an at least substantially parallel to the pull-off direction 30a, to the central axis 32a of the pull-off unit 16a and/or to a Attachment direction 36a of the connecting unit 28a aligned axis, in particular relative to the central axis 34a of the connecting unit 28a, rotatably attached to the machine tool 12a.
• connection unit 28a is intended to be arranged on the machine tool 12a via a movement in the mounting direction 36a, with at least one subsequent movement of the connection unit 28a, in particular a connection element 38a of the connection unit 28a, around the central axis 34a of the connection unit 28a securing the Rivet attachment device 10a takes place on the machine tool 12a.
• the connection unit 28a comprises a closure element 40a, which is provided to secure a state of the connection unit 28a that is fastened to the machine tool 12a.
• the central axis 34a of the connecting unit 28a is at least substantially parallel, in particular coaxial, to the central axis 32a of the Puller unit 16a aligned.
• a number of possible fastening positions of the connection unit 28a of the rivet attachment device 10a on the machine tool 12a is preferably at least 4, preferably at least 12 and preferably at least 16.
• the possible fastening positions of the connection unit 28a of the rivet attachment device 10a on the machine tool 12a are evenly distributed around the central axis 34a of the connection unit 28a formed.
• other configurations of the connection unit 28a are also conceivable for a non-rotatable attachment of the rivet attachment device 10a to the machine tool 12a, in particular configurations different from a Flexi Click attachment system.
• the fixing unit 20a is provided for receiving and fixing the rivet mandrel 26a before the rivet mandrel 26a is pulled off.
• the fixing unit 20a includes a receiving element 42a, which is also designed as an actuating element 44a of the fixing unit 20a.
• the receiving element 42a delimits a recess for receiving a rivet mandrel 26a along the central axis 32a of the pull-off unit 16a.
• the receiving element 42a is intended to be moved relative to the pull-off unit 16a, to the housing 22a and to the reset unit 18a in the pull-off direction 30a when the user actuates, in particular when the receiving element 42a is pressed against a workpiece to be riveted.
• the receiving element 42a is designed in particular in the manner of a sleeve.
• Other configurations of the fixing unit 20a are also conceivable, with the receiving element 42a and the actuating element 44a being formed separately, for example.
• the pull-off unit 16a comprises two pull-off elements 46a, which are each designed as a clamping jaw.
• the pull-off elements 46a are each provided for positive and non-positive engagement on the rivet mandrel 26a for pulling off the rivet mandrel 26a in the pull-off direction 30a.
• the pull-off elements 46a are intended to be placed on the rivet mandrel 26a in the direction of the central axis 32a of the pull-off unit 16a in order to positively and non-positively engage on the rivet mandrel 26a.
• the pull-off elements 46a each have toothing for a form-fitting connection with the rivet mandrel 26a, which in particular forms a pull-off surface 48a.
• the pull-off unit 16a comprises a socket 50a which is fixed to a part along the central axis 32a of the pull-off pulling unit 16a, in particular relative to the housing 22a of the rivet attachment device 10a and relative to the receiving element 42a movably mounted base body 52a of the pulling unit 16a, for example via a screw connection.
• the peeling members 46a each form two peeling guide surfaces 54a.
• the connecting piece 50a has two further pull-off guide surfaces 56a which are intended to cooperate with a pull-off guide surface 54a arranged on the respective pull-off element 46a to guide one of the pull-off elements 46a in order to release a rivet mandrel 26a.
• the actuator 44a/receiver 42a has two other puller guide surfaces 56a which are intended to cooperate with a puller guide surface 54a disposed on the respective puller element 46a to guide one of the puller elements 46a into engagement with a rivet mandrel 26a.
• one removal guide surface 54a of the two removal guide surfaces 54a arranged on one of the removal elements 46a is provided for the purpose of interacting with another removal guide surface 56a of the two further removal guide surfaces 56a, arranged on the actuating element 44a/receiving element 42a, when the respective removal element 46a moves in the removal direction 30a, wherein the respective pull-off element 46a is moved obliquely or perpendicularly to the pull-off direction 30a toward the central axis 32a of the pull-off unit 16a, preferably to engage a rivet mandrel 26a in a positive and non-positive manner.
• Another removal guide surface 54a of the two removal guide surfaces 54a arranged on one of the removal elements 46a is preferably provided for this purpose when the respective removal element 46a moves in a resetting direction 58a of the removal unit 16a and/or the reset unit 18a with a further removal guide surface 56a arranged on the connecting piece 50a of the two further pull-off guide surfaces 56a, the respective pull-off element 46a being moved away from the center axis 32a of the pull-off unit 16a obliquely or perpendicularly to the pull-off direction 30a, preferably to release the pull-off element 46a from a pulled-off rivet mandrel 26a.
• the pull-off elements 46a act between the connecting piece 50a and the actuating element 44a/receiving element 42a.
• the two pull-off elements 46a are movably mounted relative to the socket 50a and the base body 52a of the pull-off unit 16a, preferably along the central axis 32a of the pull-off unit 16a.
• the pull-off unit 16a preferably comprises a spring 60a, which is arranged between the main body 52a of the pull-off unit 16a, which is movably mounted along the central axis 32a of the pull-off unit 16a, and the two pull-off elements 46a.
• the spring 60a is preferably provided to apply a restoring force to the pull-off elements 46a in the reset direction 58a.
• the pull-off elements 46a are provided for a movement in the pull-off direction 30a via the pull-off guide surfaces 54a, in particular in cooperation with the other pull-off guide surfaces 56a, for positive and non-positive engagement on a rivet mandrel 26a at an angle or perpendicular to the pull-off direction 30a to the central axis 32a of the pull-off unit 16a to be moved towards.
• the pull-off elements 46a are provided for a movement in the reset direction 58a via the pull-off guide surfaces 54a, in particular in cooperation with the further pull-off guide surfaces 56a and the receiving element 42a, to release a pulled-off rivet mandrel 26a obliquely or perpendicularly to the pull-off direction 30a from the central axis 32a of the pull-off unit 16a to be moved away.
• the pull-off unit 16a comprises two force transmission elements 62a, each of which forms part of an internal thread 64a.
• the two force transmission elements 62a together form in particular a two-part threaded nut.
• the two power transmission elements 62a are provided to transmit a drive force for pulling off the rivet mandrel 26a from a drive element 66a of the rivet attachment device 10a to the pull-off elements 46a.
• the drive element 66a is not shown in section in the figures.
• the two force transmission elements 62a are intended to be moved via the drive element 66a along an axis aligned parallel to the pull-off direction 30a.
• the internal thread 64a of the two force transmission elements 62a is intended to interact with an external thread 68a of the drive element 66a.
• the two force transmission elements 62a enclose the drive element 66a for a movement of the force transmission elements 62a driven by the drive element 66a in the removal direction 30a, in particular when the force transmission elements 62a are in contact with the drive element 66a, viewed along the removal direction 30a, in particular in a region of the internal thread 64a, at least essentially completely.
• the restoring unit 18a is provided for the purpose of pulling the pull-off elements 46a into a passage after the rivet mandrel 26a has been pulled off further riveting process in each case at least essentially automatically reset to a ready-to-receive state of the pull-off elements 46a.
• the resetting unit 18a is provided for the purpose of resetting the two pull-off elements 46a and the two force transmission elements 62a to a basic position at least essentially independently after the rivet mandrel 26a has been pulled off, in particular without changing the drive direction of the drive element 66a.
• the resetting unit 18a is provided to separate the two force transmission elements 62a from the drive element 66a at least temporarily, in particular during a movement into the normal position, for resetting the pull-off elements 46a and the force transmission elements 62a into the basic position.
• the two force transmission elements 62a are intended to be applied to the drive element 66a in order to transmit the drive force about the central axis 32a of the pull-off unit 16a and to be separated from the drive element 66a for resetting, in particular via the reset unit 18a.
• the two power transmission elements 62a are provided to transmit the drive force for pulling off a rivet mandrel 26a from the drive element 66a to the pull-off elements 46a of the pull-off unit 16a acting on the rivet mandrel 26a.
• FIG. 1 shows in particular the state of readiness for take-up of the pull-off elements 46a, with the pull-off elements 46a and the force transmission elements 62a in particular being arranged in the basic position.
• the two force transmission elements 62a are arranged at a distance from the drive element 66a along the central axis 32a of the pull-off unit 16a.
• the two force transmission elements 62a are intended to be moved from the basic position in the removal direction 30a to the drive element 66a when the actuating element 44a is actuated.
• the restoring device 14a comprises a bearing unit 70a for a movable bearing of the force transmission elements 62a, in each case at least partially along an axis 72a aligned perpendicularly to the central axis 32a of the pull-off unit 16a.
• the two force transmission elements 62a can be moved relative to one another via the bearing unit 70a.
• the two force-transmitting elements 62a are mounted via the bearing unit 70a so that they can be moved completely along the axis 72a, which is aligned perpendicularly to the central axis 32a of the pull-off unit 16a.
• the storage unit 70a includes two bearing guides 74a, each of which Main body 52a of the pull-off unit 16a are limited.
• the bearing guides 74a are each formed as recesses formed perpendicular to the pull-off direction 30a.
• the two force transmission elements 62a are each arranged at least for the most part in one of the bearing guides 74a and are movably mounted along the bearing guides 74a.
• the base body 52a of the pull-off unit 16a is in particular sleeve-like and includes a recess formed around the center axis 32a of the pull-off unit 16a for receiving the drive element 66a depending on a position of the base body 52a along the center axis 32a of the pull-off unit 16a.
• a central axis of the drive element 66a which is designed in particular as a rotational axis of the drive element 66a, is formed coaxially with the central axis 32a of the pull-off unit 16a when the drive force is transmitted from the machine tool 12a.
• the two bearing guides 74a extend from the central axis 32a of the stripper unit 16a through a full thickness of the main body 52a of the stripper unit 16a, radially outwardly away from the central axis 32a.
• the two force transmission elements 62a are movably mounted for separating from the drive element 66a and for contacting the drive element 66a along the axis 72a aligned perpendicularly to the central axis 32a of the pull-off unit 16a, in particular relative to one another.
• the actuating element 44a of the fixing unit 20a is provided to connect the two force transmission elements 62a together with the pull-off elements 46a and the base body 52a to the drive element when it is actuated by a user, in particular when the actuating element 44a and the receiving element 42a are pressed against a workpiece 66a to move in the removal direction 30a, with the internal thread 64a in particular being brought into engagement with the external thread 68a of the drive element 66a.
• Resetting unit 18a includes a guide unit 76a, which is provided for separating or attaching force transmission elements 62a to or from drive element 66a, depending on a position of force transmission elements 62a along the axis aligned parallel to removal direction 30a, in particular in removal direction 30a or in reset direction 58a to apply to the drive element 66a.
• the guide unit 76a preferably comprises two guide surfaces 78a, which are each arranged on one of the force transmission elements 62a are.
• the force transmission elements 62a each form a guide extension 80a, which each at least partially encompasses one of the guide surfaces 78a.
• the guide surfaces 78a are each arranged on a side of the force transmission elements 62a that faces away from the central axis 32a of the pull-off unit 16a.
• the guide unit 76a includes two guide elements 82a and two further guide surfaces 84a, which are each arranged on one of the two guide elements 82a.
• the guide surfaces 78a and the further guide surfaces 84a are provided for guiding the two force transmission elements 62a obliquely or at least substantially perpendicular to the axis and/or the central axis 32a of the pull-off unit 16a relative to one another, preferably to separate the force transmission elements 62a from the drive element 66a or to apply the force transmission elements 62a to the drive element 66a.
• the guide surfaces 78a and the further guide surfaces 84a are provided to interact during a movement of the force transmission elements 62a driven by the drive element 66a in the removal direction 30a, preferably for guiding the force transmission elements 62a.
• the two guide elements 82a are designed to be movably mounted relative to the drive element 66a.
• the guide elements 82a are intended to be moved in the pull-off direction 30a relative to the drive element 66a during the reset and/or during the movement of the two force transmission elements 62a driven by the drive element 66a.
• the two guide elements 82a are provided to move the force transmission elements 62a relative to the central axis 32a of the extraction unit 16a, depending on a position of the two force transmission elements 62a along the axis aligned parallel to the extraction direction 30a, in particular the extraction direction 30a or the reset direction 58a to interact with one of the guide extensions 80a of the force transmission elements 62a.
• the reset unit 18a includes two stops 86a and two further stops 88a.
• the two further stops 88a are formed by the housing 22a of the rivet attachment device 10a.
• the two stops 86a are formed by a component of the connection unit 28a.
• the two stops 86a are provided to interact with the two guide elements 82a when the two force transmission elements 62a are in an end position in the removal direction 30a during or after removal of the rivet mandrel 26a, with the guide elements 82a each being provided to interact with one of the stops 86a to be moved relative to the two force transmission elements 62a, in particular in the reset direction 58a.
• the two stops 86a are immovably and/or fixedly arranged along the central axis 32a of the pull-off unit 16a.
• the two stops 86a each limit a movement of one of the guide elements 82a in the removal direction 30a.
• the two further stops 88a each limit the movement of one of the guide elements 82a counter to the removal direction 30a, in particular in the reset direction 58a.
• the further stops 88a are intended to interact with the guide elements 82a when the force transmission elements 62a are reset, the guide elements 82a being intended to be moved relative to the two force transmission elements 62a in the pull-off direction 30a when they interact with the further stops 88a.
• the two guide elements 82a each limit a movement of one of the force transmission elements 62a for separating the respective force transmission element 62a from the drive element 66a, preferably at an angle or at least essentially perpendicular to the pull-off direction 30a.
• the guide elements 82a each delimit a recess 90a, which is designed to correspond to a shape of the guide extensions 80a.
• the recesses 90a are each intended to accommodate one of the guide extensions 80a in at least one operating state, in particular for removing the rivet mandrel 26a and/or during a movement together with the force transmission elements 62a in the removal direction 30a, at least for the most part, in particular at least essentially completely.
• the guide projections 80a each have an at least essentially wedge-shaped basic shape, with a tip of the at least essentially wedge-shaped basic shape pointing in the reset direction 58a.
• the guide extensions 80a in particular the at least essentially wedge-shaped basic shape of the individual guide extensions 80a, each have a trained in the removal direction 30a end of the guide extensions 80a at least substantially perpendicular to the pull-off direction 30a formed surface, which are provided in particular to limit a movement of the guide extensions 80a in an arrangement in the recesses 90a of the guide elements 82a.
• the recesses 90a delimited by the guide elements 82a each have a basic shape, viewed perpendicularly to the central axis 32a of the pull-off unit 16a (cf. FIG. 1), which is essentially identical to the basic shape of the individual guide extensions 80a.
• Restoring unit 18a includes a restoring element 92a, which is provided for pulling puller elements 46a and force transmission elements 62a together via base body 52a of puller unit 16a to at least essentially automatically reset puller elements 46a and force transmission elements 62a into the basic position in one of pull-off direction 30a to apply a restoring force in the opposite direction, in particular in the reset direction 58a.
• the reset element 92a is preferably provided to move the pull-off elements 46a and the force transmission elements 62a together via the reset force in the reset direction 58a after the force transmission elements 62a have been separated from the drive element 66a for resetting via the main body 52a of the pull-off unit 16a.
• the restoring force of the restoring element 92a counteracts a force transmitted via the threads 64a, 68a in the pull-off direction 30a when the rivet mandrel 26a is pulled off.
• the restoring element 92a is designed as a compression spring.
• the restoring element 92a is arranged centrally around the center axis 32a of the pull-off unit 16a, viewed in the pull-off direction 30a.
• the reset element 92a is arranged around the drive element 66a.
• the restoring unit 18a comprises two further restoring elements 94a (see Figure 2), which are intended to apply a restoring force to the two force transmission elements 62a to separate the drive element 66a away from the central axis 32a of the pull-off unit 16a, with the force transmission elements being applied in particular 62a to the drive element 66a against the restoring force.
• the two further restoring elements 94a are each designed as compression springs and are arranged between the two force transmission elements 62a.
• the two further restoring elements 94a extend perpendicularly to the pull-off direction 30a from one of the two force transmission elements 62a to the other of the two power transmission elements 62a.
• the two force transmission elements 62a each delimit two receptacles 96a (see FIG. 2), which are provided to hold the further restoring elements 94a in an arrangement on or between the two force transmission elements 62a.
• the two further restoring elements 94a are each fastened, for example glued, to the two further restoring elements 94a, in particular within the receptacles 96a.
• the two further restoring elements 94a are provided to apply a restoring force to the two force transmission elements 62a in two opposite directions directed away from the central axis 32a of the pull-off unit 16a and/or away from the drive element 66a.
• the two further restoring elements 94a are arranged on two sides facing away from one another relative to the central axis 32a of the pull-off unit 16a and/or relative to the drive element 66a.
• one of the further restoring elements 94a is arranged on each side of the drive element 66a and/or the central axis 32a of the pull-off unit 16a between the two force transmission elements 62a.
• the guide unit 76a in particular the guide surfaces 78a and the further guide surfaces 84a, is intended to hold the two force transmission elements 62a on the drive element 66a for movement in the removal direction 30a driven by the drive element 66a against the restoring force of the further restoring elements 94a.
• the two further reset elements 94a are preferably provided to separate the two force transmission elements 62a from the drive element 66a for resetting in the reset direction 58a and preferably to keep them spaced apart from the drive element 66a until a basic position is reached.
• the two further restoring elements 94a are provided to apply the restoring force to the two force transmission elements 62a, each with an axis 72a aligned at least substantially perpendicular to the pull-off direction 30a and/or to the central axis 32a of the pull-off unit 16a and/or the drive element 66a.
• the two force transmission elements 62a are intended to be pushed apart by the restoring force of the two further restoring elements 94a, in particular along axis 72a, which is oriented at least substantially perpendicular to pull-off direction 30a and/or to central axis 32a of pull-off unit 16a and/or drive element 66a , in particular to an interaction of the guide surfaces 78a and the further guide surfaces 84a.
• the force transmission elements 62a are intended to be separated from the drive element 66a when the guide extensions 80a are received in the recesses 90a delimited by the guide elements 82a, preferably via the restoring force of the further restoring elements 94a.
• the guide elements 82a and the two force transmission elements 62a, in particular the guide extensions 80a are preferably designed and/or arranged in such a way that when the guide extensions 80a are received in the recesses 90a delimited by the guide elements 82a, in particular via the bearing guides 74a, the force transmission elements 62a can be moved a greater distance obliquely or at least substantially perpendicularly to pull-off direction 30a relative to drive element 66a, as with an arrangement of force transmission elements 62a on guide elements 82a outside of recesses 90a, with guide extensions 80a each being arranged outside of recesses 90a delimited by guide elements 82a are (cf.
• the two guide elements 82a are preferably provided to be moved relative to the force transmission elements 62a when interacting with one of the stops 86a in such a way that the guide extensions 80a are each moved into the recess 90a, in particular via the restoring force of the further restoring elements 94a ( see FIG. 5), the two force transmission elements 62a preferably being separated from the drive element 66a at an angle or perpendicular to the pull-off direction 30a.
• the guide elements 82a are intended to be moved relative to the force transmission elements 62a when interacting with the further stops 88a in such a way that the guide extensions 80a, in particular against the restoring force of the further restoring elements 94a and/or via the further guide surfaces 84a, each come out of the Recesses 90a are moved out, the two force transmission elements 62a preferably being applied to the drive element 66a at an angle or perpendicular to the removal direction 30a.
• the two force transmission elements 62a are intended to be moved via the resetting element 92a relative to the guide elements 82a in the resetting direction 58a, with the guide extensions 80a in particular being moved via the additional guide surfaces 84a arranged on the guide elements 82a of the guide unit 76a out of the recesses 90a be gone.
• the two force transmission elements 62a are intended to be moved against the restoring force of the further restoring elements 94a in the direction of the drive element 66a when the guide projections 80a are moved out of the recesses 90a, with the two force transmission elements 62a preferably contacting the drive element 66a by moving towards one another will.
• the two force transmission elements 62a are intended to be moved in the pull-off direction 30a, driven by the two pull-off elements 46a via the drive element 66a, after they have come into contact with the drive element 66a in order to pull off a rivet mandrel 26a.
• a drive force of the rotating drive element 66a is converted via the two force transmission elements 62a, in particular the threads 64a, 68a, into a force directed in the pull-off direction 30a and transmitted to the two pull-off elements 46a.
• the two guide elements 82a viewed along the central axis 32a of the pull-off unit 16a, are each arranged on a side of one of the force transmission elements 62a that faces away from the central axis 32a.
• Actuating element 44a is intended to interact with socket 50a and main body 52a of extraction unit 16a in at least one operating state to reset extraction elements 46a and force transmission elements 62a into the basic position, with the two extraction elements 46a and the two force transmission elements 62a in particular being in the extraction direction 30a are moved.
• the resetting element 92a is preferably provided for the purpose of moving the receiving element 42a/actuating element 44a when resetting, in particular after a removal process, in the resetting direction 58a into a basic state, in particular an unactuated state.
• Pull-off unit 16a and return unit 18a are designed in such a way that the drive element 66a transfers the drive force to the two pull-off elements 46a of pull-off unit 16a and at least essentially automatically resets the pull-off elements 46a to the ready-to-take state or the basic position and the force-transmitting elements 62a to the basic position done purely mechanically.
• the rivet attachment device 10a does not include any electrical and/or electronic components.
• the drive unit of the machine tool 12a is an electric motor only the driving force made available by the machine tool 12a is generated electrically.
• the pull-off unit 16a has a pull-off path 98a, along which the two pull-off elements 46a move with a rivet mandrel 26a that is positively and/or non-positively connected to the pull-off elements 46a in order to pull off the rivet mandrel 26a.
• the pull-off section 98a is preferably at least essentially rectilinear.
• the pull-off distance 98a is aligned at least essentially parallel to the pull-off direction 30a and/or to the central axis 32a of the pull-off unit 16a.
• the pull-off elements 46a are arranged at an end of the pull-off path 98a that is opposite to the pull-off direction 30a (cf. FIG. 1).
• the pull-off elements 46a are preferably provided to be moved along the pull-off path 98a in the pull-off direction 30a in order to pull off the rivet mandrel 26a together with the rivet mandrel 26a positively and/or non-positively connected to the pull-off elements 46a.
• the base body 52a of the pull-off unit 16a delimits two guide receptacles 100a for the movable mounting of the two guide elements 82a, each along an axis aligned parallel to the central axis 32a of the pull-off unit 16a (see also FIG. 2).
• the base body 52a of the pull-off unit 16a delimits a receiving recess 102a for the restoring element 92a, which is formed around the central axis 32a of the pull-off unit 16a.
• the receiving recess 102a and the restoring element 92a arranged therein are preferably arranged at a distance from the bearing guides 74a and the two force transmission elements 62a.
• the restoring element 92a is preferably inserted between the base body 52a, in particular the receiving recess 102a, and the drive element 66a.
• the return element 92a it is also conceivable for the return element 92a to be attached to the base body 52a of the pull-off unit 16a, in particular via the receiving recess 102a, for example via a welded or adhesive connection.
• the rivet attachment device 10a comprises a feed 104a, which is provided for the purpose of riveting mandrels 26a which have been drawn off via the drawing-off unit 16a and which, in particular, are completely drawn in by the fixing unit 20a in the drawing-off direction 30a from a position on the central axis 32a of the stripping unit 16a into the collection container 24a.
• the feed 104a is designed in particular as a channel delimited by the housing 22a, which extends from the central axis 32a of the extraction unit to the collection container 24a.
• the pull-off unit 16a is provided to output the rivet mandrel 26a into the feed 104a after the rivet mandrel 26a has been pulled off.
• the main body 52a of the pull-off unit 16a delimits an opening 106a for dispensing the rivet mandrel 26a after the rivet mandrel 26a has been pulled off.
• Pull-off unit 16a is preferably provided to release rivet mandrel 26a from pull-off elements 46a after rivet mandrel 26a has been pulled off by moving pull-off elements 46a apart, with the rivet mandrel, preferably by gravity, passing through opening 106a via feed 104a into the collection container 24a falls.
• the rivet attachment device 10a comprises at least one actuator element, for example a spring or a compressed air element or the like, which is intended to a pulled off rivet mandrel 26a, for example depending on a position of the rivet mandrel 26a along the central axis 32a of the pull-off unit 16a, via a force in the direction of the collecting container 24a or into the collecting container 24a.
• the opening 106a delimited by the base body 52a of the pull-off unit 16a is arranged at a distance from the central axis 32a of the pull-off unit 16a.
• the opening 106a delimited by the base body 52a of the extraction unit 16a is preferably arranged relative to the central axis 32a of the extraction unit 16a in a direction radial to the central axis 32a of the extraction unit 16a and facing the collection container 24a.
• the feed 104a preferably extends at least obliquely, in particular at an angle of more than 8°, to the central axis 32a of the extraction unit 16a, preferably from the central axis 32a of the extraction unit 16a to the collection container 24a.
• the collection container 24a includes a removal opening 108a for emptying the collection container 24a.
• the rivet attachment device 10a comprises at least one closure element for opening and closing the removal opening 108a (not shown in figures).
• the collection container 24a is arranged at least partially or centrally on the central axis 32a of the pull-off unit 16a.
• FIG. 2 shows an exploded sketch of the rivet attachment device 10a.
• the rivet attachment device 10a comprises an output unit 110a for optical output of a position of the pull-off unit 16a, in particular of the force transmission elements 62a, along the pull-off direction 30a.
• the output unit 110a is provided to indicate to a user the position of the pull-off unit 16a and the restoring unit 18a along the pull-off direction 30a via the force transmission elements 62a and the base body 52a of the pull-off unit 16a.
• the dispensing unit 110a is formed in one piece with the housing 22a, in particular a housing outer wall 112a of the housing 22a, of the rivet attachment device 10a.
• the output unit 110a includes two viewing passages 114a, which are delimited by the housing 22a, in particular the housing outer wall 112a, on an upper side of the rivet attachment device 10a.
• Alternative configurations of the dispensing unit 110a are also conceivable, for example on a side wall 116a, with a different number of two viewing passages 114a or the like.
• the viewing passages 114a are arranged such that at least one of the force transmission elements 62a and at least partially the base body 52a of the pull-off unit 16a are visible in an arrangement on the drive element 66a from the outside, in particular from outside the rivet attachment device 10a, for a user of the rivet attachment device 10a.
• the two viewing passages 114a are arranged one behind the other in the peeling-off direction 30a.
• the two viewing passages 114a are each configured at least essentially in the form of a slot.
• the viewing passages 114a each extend along the pull-off direction 30a, at least for the most part over a region of the external thread 68a of the drive element 66a, with the force transmission element 62a being visible from the outside at least when it is arranged on a front part and on a rear part of the external thread 68a of the drive element 66a.
• the output unit 110a comprises at least one at least partially transparent viewing window, which at least largely, in particular completely, covers and/or fills one of the viewing passages 114a or both viewing passages 114a.
• the viewing window is provided to protect the pull-off unit 16a and/or the reset unit 18a from foreign bodies, such as dirt or the like, penetrating through the viewing passage 114a into the rivet attachment device 10a.
• the socket 50a is formed in two parts, with the pull-off elements 46a being arranged within a part of the socket 50a which is at the front in the reset direction 58a.
• the socket 50a is connected to the base body 52a of the pull-off unit 16a via a screw connection.
• the fixing unit 20a includes a sleeve 118a, which is connected to the actuating element 44a and the receiving element 42a.
• the sleeve 118a at least essentially completely encloses the socket 50a and the pull-off elements 46a around the central axis 32a of the pull-off unit 16a.
• the sleeve 118a of the fixing unit 20a forms two extensions 120a, which are movably mounted within the housing 22a along an axis aligned parallel to the central axis 32a of the pull-off unit 16a.
• the sleeve 118a is designed to be non-rotatable about the central axis 32a of the pull-off unit 16a via the two extensions 120a.
• the rivet attachment device 10a comprises two spring elements 122a, which are provided to apply a restoring force to the sleeve 118a together with the receiving element 42a and the actuating element 44a via the extensions 120a in the reset direction 58a.
• the two spring elements 122a are preferably provided to move the fixing unit 20a into a basic position in the reset direction 58a after a rivet mandrel 26a has been removed and/or after it has been actuated by a user.
• the two spring elements 122a are each designed as a compression spring.
• the rivet attachment device 10a comprises two threaded inserts 124a, which are provided for supporting one of the spring elements 122a in each case.
• the threaded inserts 124a are arranged on an internal thread 64a formed by the housing 22a and can each be moved via the internal thread 64a along an axis aligned parallel to the central axis 32a of the pull-off unit 16a.
• a restoring force for the fixing unit 20a can be set via the threaded inserts 124a.
• the spring elements 122a are preferably arranged between the extensions 120a and the threaded inserts 124a.
• the extensions 120a, the spring elements 122a, the threaded inserts 124a and/or the internal threads 64a are arranged on opposite sides of the central axis 32a of the pull-off unit 16a, the restoring unit 18a and/or the base body 52a of the pull-off unit 16a.
• the extensions 120a, the spring elements 122a, the threaded inserts 124a and/or the internal threads 64a are preferably arranged on inner sides of the housing 22a facing one another.
• the extensions are preferably 120a, the spring elements 122a, the threaded inserts 124a and/or the internal threads 64a spaced from the underside and the top of the rivet attachment device 10a, preferably spaced from the dispensing unit 110a or the collection container 24a, the feed 104a and the opening 106a, in particular the two side walls 116a of the housing 22a.
• the guide extensions 80a preferably each have a maximum longitudinal extent 126a of at least 1 cm, preferably at least 1.5 cm and preferably at least 2 cm.
• the maximum longitudinal extension 126a of the guide extensions 80a is oriented perpendicular to the central axis 32a of the pull-off unit 16a and/or at least essentially perpendicular to a possible movement path of the force transmission elements 62a for separating from the drive element 66a or for contact with the drive element 66a.
• the guide elements 82a each delimit a stop surface 128a in the reset direction 58a for interaction with one of the other stops 88a, wherein the stop surfaces 128a each have a greater maximum transverse extent perpendicular to the central axis 32a of the pull-off unit 16a than a central transverse extent of the guide element 82a on which the respective stop surface 128a is arranged.
• the maximum longitudinal extent 126a of the guide extensions 80a is greater than a maximum longitudinal extent 130a of the individual recesses 90a delimited by the guide elements 82a.
• the maximum longitudinal extension 130a of the individual recesses 90a delimited by the guide elements 82a is preferably at least 0.25 cm, preferably at least 0.5 cm and preferably at least 1 cm.
• the two guide receptacles 100a delimited by the base body 52a of the pull-off unit 16a for the movable mounting of the two guide elements 82a each intersect with one of the bearing guides 74a of the bearing unit 70a delimited by the base body 52a.
• the guide elements 82a are provided to limit a movement of one of the force transmission elements 62a within one of the bearing guides 74a that is directed away from the drive element 66a.
• the bearing guides 74a, the guide elements 82a, the stops 86a and/or the further stops 88a each point along the central axis 32a of the pull-off unit 16a a greater radial distance from the central axis 32a of the pull-off unit 16a than the individual pull-off elements 46a, the socket 50a and/or the internal thread 64a of the force transmission elements 62a.
• the base body 52a, the socket 50a, the pull-off elements 46a, the force-transmitting elements 62a, the further restoring elements 94a and the guide elements 82a are designed together as a preassembled assembly.
• the base body 52a, the connecting piece 50a, the pull-off elements 46a, the force transmission elements 62a, the further restoring elements 94a and the guide elements 82a can be removed together from the housing 22a during disassembly and/or maintenance or together in the housing 22a during assembly be installed, preferably in a fixed arrangement together.
• connection unit 28a includes in particular a bearing for a rotatable arrangement of the drive element 66a.
• the connection unit 28a comprises at least one fastening element for a non-rotatable arrangement of the rivet attachment device 10a on the machine tool 12a.
• Connecting unit 28a is preferably provided to convert and/or transmit a drive force provided by machine tool 12a, in particular an output element of machine tool 12a, into a rotational movement of drive element 66a about central axis 32a of puller unit 16a and/or drive element 66a .
• the housing 22a has a grip element 132a on each of the two side walls 116a, each of which is designed in particular as a soft-grip grip piece.
• the handle elements 132a are preferably each provided for a user to hold the rivet attachment device 10a.
• the rivet attachment device 10a is preferably intended to be encompassed by the gripping elements 132a during a riveting process. Other configurations of the grip elements 132a and/or a different number of grip elements 132a from two are also conceivable.
• FIGS. 3 to 6 a sequence of movements of the pull-off unit 16a and the restoring unit 18a, in particular the force transmission elements 62a and the guide elements 82a together with the base body 52a of the pull-off unit 16a, for pulling off a product held in place by the pull-off elements 46a Rivet mandrel 26a shown in the removal direction 30a during a riveting process.
• FIG. 1 shows the basic position of the pull-off elements 46a and the force transmission elements 62a, with the pull-off elements 46a being arranged in the ready-to-take state.
• the actuating element 44a is provided to move the force transmission elements 62a when actuated from the basic position of the force transmission elements 62a in the removal direction 30a to the drive element 66a, the force transmission elements 62a being brought into engagement with the drive element 66a for a driven removal movement.
• the drive element 66a is provided for the purpose, after the force transmission elements 62a have been brought into engagement with the drive element 66a, via a rotation by means of the external thread 68a and the internal thread 64a, to rotate the connecting piece 50a, the base body 52a and the guide elements 82a and the force transmission elements 62a relative to the drive element 66a and/or or to move the housing 22a in the peeling direction 30a.
• a force in the stripping direction 30a is transmitted from the force transmission elements 62a via the base body 52a and the socket 50a to the two stripping elements 46a.
• the pull-off elements 46a are intended to act on a rivet mandrel 26a arranged on the central axis 32a of the pull-off unit 16a during a movement in the pull-off direction 30a and to pull this off during a movement of the force transmission elements 62a along the internal thread 64a, with the rivet mandrel 26a in particular being detached from a base body 52a of a Rivet blank separated, especially demolished, is.
• FIG. 4 shows the force transmission elements 62a in a position on the drive element 66a after the rivet mandrel 26a has been pulled off.
• the power The carrying elements 62a are via the internal threads 64a in the removal direction 30a along the external thread 68a of the drive element 66a.
• the guide elements 82a are moved to the stops 86a and interact with them.
• the force transmission elements 62a and the base body 52a of the pull-off unit 16a move further in the pull-off direction 30a relative to the guide elements 82a, with the recesses 90a delimited by the guide elements 82a moving in particular in the direction of the guide projections 80a relative to the force transmission elements 62a.
• the force transmission elements 62a are moved by means of the further restoring elements 94a via the guide extensions 80a at an angle or at least essentially perpendicularly to the pull-off direction 30a into the recesses 90a, with the force transmission elements 62a be separated from the drive element 66a (see FIG. 5).
• the internal thread 64a and the external thread 68a are separated from one another, with in particular no more force being transmitted from the drive element 66a to the force transmission elements 62a.
• the restoring element 92a is preferably provided to move the force transmission elements 62a, the pull-off elements 46a, the connection piece 50a and the base body 52a via the base body 52a in the reset direction 58a after the force transmission elements 62a have been separated from the drive element 66a.
• the position of the guide elements 82a relative to the force transmission elements 62a and the base body 52a is held when being reset via the guide extensions 80a and the recesses 90a.
• the force transmission elements 62a, the pull-off elements 46a, the socket 50a and the base body 52a are moved in the reset direction 58a by the restoring force of the restoring element 92a until the stop surfaces 128a of the guide elements 82a interact with the other stops 88a.
• the guide elements 82a interact with the further stops 88a, the guide elements 82a are moved relative to the force transmission elements 62a and the base body 52a, which in particular move the other in the reset direction 58a.
• the guide extensions 80a When moving in the reset direction 58a, the guide extensions 80a are moved relative to the guide elements 82a via the guide surfaces 78a and the additional guide surfaces 84a out of the recesses 90a, with the force transmission elements 62a moving along the additional guide surfaces 84a against the restoring force of the additional reset elements 94a in the direction of the Drive element 66a are moved, in particular towards each other.
• the force transmission elements 62a are moved towards one another, the force transmission elements 62a are arranged next to one another, the internal threads 64a of the two force transmission elements 62a together forming an internal thread 64a that completely encloses the central axis 32a of the pull-off unit 16a.
• the force transmission elements 62a and the base body 52a are moved in the reset direction 58a until the base body 52a strikes the guide elements 82a, which bear against the further stops 88a, with the force transmission elements 62a and the pull-off elements 46a assuming a basic position (cf. Figure 1).
• the pull-off elements 46a are in the ready-to-take state.
• FIGS. 7 shows a first alternative embodiment of a rivet attachment device 10b for setting blind rivets in a region of a pull-off unit 16b and a reset unit 18b of the rivet attachment device 10b.
• the rivet attachment device 10b comprises a connection unit (not shown in FIG. 7) for non-rotatable attachment to a machine tool and a fixing unit 20b for receiving a rivet mandrel 26b during a riveting process, which is only shown schematically in FIG.
• the pull-off unit 16b is provided for pulling off the rivet mandrel 26b in a pull-off direction 30b.
• the pull-off unit 16b is provided to pull the rivet mandrel 26b completely through the fixing unit 20b in the pull-off direction 30b after the rivet mandrel 26b has been pulled off.
• the rivet attachment device 10b shown in Figure 7 has an at least essentially analogous design to the rivet attachment device 10a described in the description of Figures 1 to 6, so that with regard to an embodiment of the rivet attachment device 10b shown in Figure 7, at least essentially the description of the figures 1 to 6 can be referred to.
• the pull-off unit of the rivet attachment device 10b shown in Figure 7 preferably comprises two pull-off elements 46b for engaging the rivet mandrel 26b in a positive and/or non-positive manner in order to pull off the rivet mandrel 26b Pull-off device 30b, which are each intended to be moved in rotation for pulling off the rivet mandrel 26b.
• the pull-off elements 46b are provided to reset themselves automatically into a ready-to-take state when the rivet mandrel 26b is pulled off, the pull-off elements 46b being designed as part of the reset unit 18b.
• the resetting unit 18b in particular the puller elements 46b themselves, is provided for the purpose of resetting the puller elements 46b, after the rivet mandrel 26b has been pulled off, to carry out a further riveting process, at least essentially independently, into the readiness state of the puller elements 46b, with each position of the puller elements 46b advantageously being adjusted by one Axis of rotation 134b of the pull-off elements 46b is designed as a ready-to-take state.
• the two pull-off elements 46b are designed as wheels, which are each mounted so as to be rotatable about an axis of rotation 134b of the individual pull-off elements 46b, which axis is oriented perpendicularly to the pull-off direction 30b.
• the pull-off elements 46b each have teeth which lead to a positive and non-positive attack on a
• the rivet mandrel 26b received via the fixing unit 20b is provided.
• One of the two pull-off elements 46b can be adjusted via a bearing unit 70b of the rivet attachment device 10b along an axis 72b oriented perpendicular to the pull-off direction 30b and perpendicular to its axis of rotation 134b, with a minimum distance between the two pull-off elements 46b, which is in particular oriented perpendicular to the pull-off direction 30b, being set can be, for example, to an adjustment to a size of a retractable rivet mandrel 26b.
• the two pull-off elements 46b are intended to pull in the rivet mandrel 26b over the full length of the rivet mandrel 26b in the pull-off direction 30b and to eject it into a feed 104b for collecting pulled-off rivet mandrels 26b in a collection container of the rivet attachment device 10b (not shown in Figure 7).
• the rivet attachment device 10b includes an angular gear 136b (shown schematically in FIG. 7) for transmitting a drive force from a drive element that can be driven via the machine tool to the two pull-off elements 46b.
• the pull-off elements 46b each comprise a pull-off surface 48b, which is provided for positive and non-positive engagement on a rivet mandrel 26b to be pulled off.
• the pull-off surfaces 48b are intended to move at least partially together with the rivet mandrel 26b in the pull-off direction 30b when a rivet mandrel 26b is pulled off.
• the axes of rotation 134b of the pull-off elements 46b are arranged at a distance from a central axis 32b of the pull-off unit 16b.
• the axes of rotation 134b of the pull-off elements 46b are aligned perpendicularly to the pull-off direction 30b and to the central axis 32b of the pull-off unit 16b.
• the pull-off surfaces 48b are intended to be moved about the axes of rotation 134b when the pull-off elements 46b move about the axes of rotation 134b.
• the pull-off surfaces 48b extend in a sectional plane of the at least one pull-off element 46b that has the pull-off surface 48b, which is oriented perpendicularly to the axis of rotation 134b and/or encompasses the central axis 32b of the pull-off unit 16b, viewed at least essentially completely over an entire circumferential extent of the pull-off element 46b that the respective Pull-off surface 48b forms.
• Pulling elements 46b each have an at least essentially circular outer contour when viewed in a sectional plane of the at least one pulling element 46b having the pulling surface 48b, which is oriented perpendicularly to the axis of rotation 134b and/or encompasses the central axis 32b of the pulling unit 16b.
• the pull-off surfaces 48b are each provided for independent of a position of the pull-off element 46b forming the respective pull-off surface 48b about the axis of rotation 134b of the pull-off element 46b in a positive and/or non-positive manner on a rivet mandrel 26b arranged on the central axis 32b of the pull-off unit 16b and/or on a rivet mandrel 26b received via the fixing unit 20b.
• the two stripping elements 46b are arranged on opposite sides of the central axis 32b of the stripping unit 16b, in particular on an upper side and an underside of the central axis 32b of the stripping unit 16b.
• Pulling elements 46b particularly when arranged on a rivet mandrel 26b, preferably enclose the central axis 32b of the pulling unit 16b in a plane oriented perpendicular to the central axis 32b of the pulling unit 16b, viewed together over an angular range of at least 60°, preferably at least 90° and preferably at least 120 °, around the central axis 32b of the pull-off unit 16b.
• the peel-off elements 46b in particular the peel-off surfaces 48b, each have a maximum transverse extent of at least 0.25 cm, preferably at least 0.5 cm and preferably 0.75 cm (not shown in FIG.
• the maximum transverse extent of the individual pull-off elements 46b, in particular of the pull-off surfaces 48b, corresponds at least to a maximum transverse extent of a rivet mandrel 26b to be removed.
• FIG. 8 schematically shows a second alternative embodiment of a rivet attachment device 10c for setting blind rivets in an area of a pull-off unit 16c and a reset unit 18c of the rivet attachment device 10c.
• the rivet attachment device 10c comprises a connection unit (not shown in FIG. 8) for non-rotatable attachment to a machine tool and a fixing unit 20c for receiving a rivet mandrel 26c during a riveting process, which is only shown schematically in FIG.
• the pull-off unit 16c is provided for pulling off the rivet mandrel in a pull-off direction 30c.
• the pull-off unit 16c is provided to completely pull the rivet mandrel 26c in the pull-off direction 30c through the fixing unit 20c after the rivet mandrel 26c has been pulled off.
• the rivet attachment device 10c shown in FIG. 8 has an at least essentially analogous configuration to the rivet attachment device 10a described in the description of FIGS on, so that with regard to an embodiment of the rivet attachment device 10c shown in FIG. 8, at least essentially, reference can be made to the description of FIGS.
• the puller unit 16c of the rivet attachment device 10c shown in Figure 8 preferably comprises two puller elements 46c for positive and/or non-positive engagement with the rivet mandrel 26c for removing the rivet mandrel 26c in the pull-off direction 30c, which are each intended to be moved in a rotating manner in order to pull off the rivet mandrel 26c.
• the pull-off elements 46c are provided to reset themselves automatically into a ready-to-take state when the rivet mandrel 26c is pulled off, with the pull-off elements 46c being designed as part of the reset unit 18c.
• the resetting unit 18c in particular the puller elements 46c themselves, is provided for the purpose of resetting the puller elements 46c, after the rivet mandrel 26c has been pulled off, to carry out a further riveting process, at least essentially independently, into the ready-to-receive state of the puller elements 46c, with each position of the puller elements 46c advantageously being adjusted by one Axis of rotation 134c, 138c is designed as a ready-to-take state.
• the two stripping elements 46c are designed as rollers, which are each mounted so as to be rotatable about a rotational axis 134c, 138c of the individual stripping elements 46c.
• a rotation axis 134c of one of the stripping elements 46c is aligned parallel to a central axis 32c of the stripping unit 16c.
• the axis of rotation 138c of the other pull-off element 46c subtends an angle of more than 8° to the central axis 32c of the pull-off unit 16c, but this angle is in particular smaller than 60°, preferably smaller than 45° and preferably smaller than 30°.
• the angle between the axis of rotation 138c of the other stripping element 46c and the center axis 32c of the stripping unit 16c is preferably spanned by a plane encompassing the axis of rotation 134c of the stripping element 46c and the center axis 32c of the stripping unit 16c and the axis of rotation 138c of the other stripping element 46c.
• both pull-off elements 46c are aligned at an angle to the central axis 32c of the pull-off unit 16c.
• the pull-off elements 46c are provided for this hen to eject the rivet mandrel 26c laterally after it has been pulled off and/or pulled in in the pull-off direction 30c, preferably into a collection container of the rivet attachment device 10c (not shown in FIG. 8).
• At least one of the two pull-off elements 46c is adjustable, in particular analogously to the rivet attachment device 10b shown in Figure 7, along an axis oriented perpendicular to the pull-off direction 30c and perpendicular to its axis of rotation 134c, 138c, with a distance between the two pull-off elements 46c can be adjusted.
• the axes of rotation 134c, 138c of the stripping elements 46c are arranged at a distance from the central axis 32c of the stripping unit 16c.
• the pull-off elements 46c each have an at least essentially circular outer contour when viewed in a sectional plane aligned perpendicularly to the respective axis of rotation 134c, 138c.
• the pull-off elements 46c have teeth or an adhesive coating, in particular for an advantageously high power transmission to the rivet mandrel 26c.
• the pull-off elements 46c are each provided for the purpose of frictionally engaging a rivet mandrel 26c arranged on the central axis 32c of the pull-off unit 16c and/or a rivet mandrel 26c received via the fixing unit 20c, regardless of a position about the axis of rotation 134c, 138c of the respective pull-off element 46c.
• the two stripping elements 46c are arranged on opposite sides of the central axis 32c of the stripping unit 16c, in particular on an upper side and an underside of the central axis 32c of the stripping unit 16c.
• Pulling elements 46c particularly when arranged on a rivet mandrel 26c, preferably enclose the central axis 32c of the pulling unit 16c in a plane oriented perpendicular to the central axis 32c of the pulling unit 16c, viewed together over an angular range of at least 180°, preferably at least 220° and preferably at least 240 °, about the central axis 32c of the stripping unit 16c.
• the pull-off elements 46c can advantageously be driven directly, in particular without a force deflection, via a rotating drive element of the machine tool due to the orientation of the axes of rotation 134c, 138c of the pull-off elements 46c shown and described.
• FIG. 9 shows a third alternative embodiment of a rivet attachment device 10d for setting blind rivets in a region of a pull-off unit 16d and a reset unit 18d of the rivet attachment device 10d.
• the rivet attachment device 10d comprises a connection unit (in Figure 9 not shown) for non-rotatable attachment to a machine tool and a fixing unit 20d for receiving a rivet mandrel 26d during a riveting process, which is shown schematically in particular in FIG.
• the pull-off unit 16d is provided for pulling off the rivet mandrel 26d in a pull-off direction 30d.
• the pull-off unit 16d is provided to pull the rivet mandrel 26d completely through the fixing unit 20d in the pull-off direction 30d after the rivet mandrel 26d has been pulled off.
• the rivet attachment device 10d shown in Figure 9 has an at least essentially analogous design to the rivet attachment device 10a described in the description of Figures 1 to 6, so that with regard to an embodiment of the rivet attachment device 10d shown in Figure 9, at least essentially the description of the figures 1 to 6 can be referred to.
• the pull-off unit 16d of the rivet attachment device 10d shown in Figure 9 preferably comprises four pull-off elements 46d for positive and/or non-positive engagement with the rivet mandrel 26d for pulling off the rivet mandrel 26d in the pull-off direction 30d, which are each intended to be moved in a rotating manner in order to pull off the rivet mandrel 26d.
• the pull-off elements 46d are provided to reset themselves automatically into a ready-to-take state when the rivet mandrel 26d is pulled off, with the pull-off elements 46d being designed as part of the reset unit 18d.
• the resetting unit 18d in particular the puller elements 46d themselves, is provided to reset the puller elements 46d, after the rivet mandrel 26d has been pulled off, to carry out a further riveting process, at least essentially independently, into the readiness state of the puller elements 46d, with each position of the puller elements 46d advantageously being adjusted by one Axis of rotation 134d is designed as a recording readiness state.
• the four pull-off elements 46d are designed as rollers, which are each mounted so as to be rotatable about an axis of rotation 134d oriented perpendicularly to the pull-off direction 30d. It is conceivable that the pull-off elements 46d each have teeth or an adhesive coating or the like.
• the pull-off elements 46d are intended to pull in the rivet mandrel 26d over a complete length of the rivet mandrel 26d in the pull-off direction 30d and into a feed 104d to collect the pulled-off eject mandrels 26d into a collection container of the rivet attachment device (not shown in FIG. 9).
• the pull-off elements 46d each comprise a pull-off surface 48d, which is provided for positive and non-positive engagement on a rivet mandrel 26d to be pulled off.
• the pull-off surfaces 48d are intended to move at least partially together with the rivet mandrel 26d in the pull-off direction 30d when a rivet mandrel 26d is pulled off.
• the axes of rotation 134d of the stripping elements 46d are arranged at a distance from a central axis 32d of the stripping unit 16d.
• the pull-off surfaces 48d are intended to be moved about the axes of rotation 134d when the pull-off elements 46d move about the axes of rotation 134d.
• the pull-off surfaces 48d extend in a sectional plane of the at least one pull-off element 46d that has the pull-off surface 48d, which is aligned perpendicularly to the axis of rotation 134d and/or encompasses the central axis 32d of the pull-off unit 16d, viewed at least essentially completely over an entire circumferential extension of the pull-off element 46d that the respective Forms peeling surface 48d.
• Pulling elements 46d each have an at least essentially circular outer contour when viewed in a sectional plane of the at least one pulling element 46d having the pulling surface 48d, which is aligned perpendicularly to the axis of rotation 134d and/or encompasses the central axis 32d of the pulling unit 16d.
• the pull-off surfaces 48d are each provided for the purpose of engaging a rivet mandrel 26d arranged on the central axis 32d of the pull-off unit 16d and/or a rivet mandrel 26d held by the fixing unit 20d, independently of a position of the pull-off element 46d forming the respective pull-off surface 48d about the axis of rotation 134d of the pull-off element 34d .
• two of the four stripping elements 46d are arranged on opposite sides of the central axis 32d of the stripping unit 16d, in particular on an upper side and an underside of the central axis 32d of the stripping unit 16d.
• the pull-off unit 16d comprises four power transmission elements 140d, which are designed as rollers and are each provided for transmitting a drive force to the pull-off elements 46d.
• the force transmission elements 140d are each rotatably mounted about an axis of rotation oriented perpendicularly to the pull-off direction 30d and parallel to the axes of rotation 134d of the pull-off elements 46d.
• Two of the force transmission elements 140d are each arranged between two stripping elements 46d, which are arranged in particular on one side of the central axis 32d of the stripping unit 16d, and are provided for this purpose. seen to transmit a driving force from one of the two peeling members 46d to another of the two peeling members 46d.
• the force-transmitting elements 140d each preferably bear against at least one of the pull-off elements 46d.
• the rivet attachment device preferably comprises an angular gear or the like. to transmit the drive force from a drive element of the rivet attachment device 10d or the machine tool to at least one force transmission element 140d for each side of the central axis 32d of the pull-off unit 16d.
• the pull-off elements 46d each have the same minimum distance from the central axis 32d of the pull-off unit 16d.
• the force transmission elements 140d preferably have a greater minimum distance from the central axis 32d of the pull-off unit 16d than the pull-off elements 46d.
• FIG. 10 shows a fourth alternative embodiment of a rivet attachment device 10e for setting blind rivets in a region of a pull-off unit 16e and a reset unit 18e of the rivet attachment device 10e.
• the rivet attachment device 10e comprises a connection unit (not shown in FIG. 10) for non-rotatable attachment to a machine tool and a fixing unit 20e for receiving a rivet mandrel 26e during a riveting process, which is shown schematically in particular in FIG.
• the pull-off unit 16e is provided for pulling off the rivet mandrel 26e in a pull-off direction 30e.
• the pull-off unit 16e is provided to pull the rivet mandrel 26e completely through the fixing unit 20e in the pull-off direction 30e after the rivet mandrel 26e has been pulled off.
• the rivet attachment device 10e shown in Figure 10 has an at least essentially analogous design to the rivet attachment device 10a described in the description of Figures 1 to 6, so that with regard to an embodiment of the rivet attachment device 10e shown in Figure 10, at least essentially the description of the figures 1 to 6 can be referred to.
• the pull-off unit 16e of the rivet attachment device 10e shown in Figure 10 preferably comprises two pull-off elements 46e for a positive and/or non-positive engagement on the rivet mandrel 26e for removing the rivet mandrel 26e in the pull-off direction 30e, which are each intended to be moved in a rotating manner in order to pull off the rivet mandrel 26e.
• the pull-off elements 46e are provided for this seen to automatically reset itself into a ready-to-take state when the rivet mandrel 26e is pulled off, with the pull-off elements 46e being designed as part of the reset unit 18e.
• the resetting unit 18e in particular the puller elements 46e themselves, is provided to reset the puller elements 46e, after the rivet mandrel 26e has been pulled off, to carry out a further riveting process, at least essentially independently, into the readiness state of the puller elements 46e, with each position of the puller elements 46e advantageously along a Revolving path of the peeling members 46e is formed as a pickup ready state.
• the two pull-off elements 46e are in the form of pull-off belts which are each guided in a rotatable manner around two rollers 142e.
• the rollers 142e are each designed as a power transmission element.
• the rollers 142e each have an axis of rotation 144e, which is aligned perpendicular to the pull-off direction 30e.
• the two pull-off elements 46e are intended to pull in the rivet mandrel 26e over the full length of the rivet mandrel 26e in the pull-off direction 30e and to eject it into a feed 104e for collecting pulled rivet mandrels 26e in a collection container of the rivet attachment device 10e (not shown in FIG. 10).
• the rollers 142e are, for example, connected to a drive element via an angular gear, similar to the rivet attachment device 10a shown in FIG.
• the pull-off elements 46e each comprise a pull-off surface 48e, which is provided for a non-positive engagement on a rivet mandrel 26e to be pulled off.
• the pull-off surfaces 48e are intended to move at least partially together with the rivet mandrel 26e in the pull-off direction 30e when a rivet mandrel 26e is pulled off.
• the axes of rotation 144e of the rollers 142e are each arranged at a distance from the central axis 32e of the pull-off unit 16e.
• the pull-off elements 46e are intended to be moved around the rollers 142e in each case when the rollers 142e move about their axes of rotation 144e.
• Pulling elements 46e each have an outer contour that is at least essentially racetrack-shaped, viewed in a sectional plane of the at least one pulling element 46e that has the pulling surface 48e and is aligned perpendicularly to the axes of rotation 144e of the rollers 142e and/or encompasses the central axis 32e of the pulling unit 16e.
• the pull-off elements 46e in particular the pull-off surfaces 48e, are each provided for the purpose of frictionally locking one on the central axis, regardless of the position of the respective pull-off element 46e on the rollers 142e.
• se 32e of the pull-off unit 16e arranged and/or to attack a rivet mandrel 26e received via the fixing unit 20e.
• the two stripping elements 46e are arranged on opposite sides of the central axis 32e of the stripping unit 16e, in particular on an upper side and an underside of the central axis 32e of the stripping unit 16e.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Insertion Pins And Rivets (AREA)

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Publications (1)

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• 2020
  • 2020-12-22 DE DE102020216474.6A patent/DE102020216474A1/de not_active Withdrawn
• 2021
  • 2021-12-13 EP EP21839376.7A patent/EP4267325A2/de active Pending
  • 2021-12-13 CN CN202180086730.6A patent/CN116669878A/zh active Pending
  • 2021-12-13 WO PCT/EP2021/085362 patent/WO2022135984A2/de active Application Filing

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