EP2866987A1 - Dispositif de raccordement d'outil - Google Patents

Dispositif de raccordement d'outil

Info

Publication number
EP2866987A1
EP2866987A1 EP13722447.3A EP13722447A EP2866987A1 EP 2866987 A1 EP2866987 A1 EP 2866987A1 EP 13722447 A EP13722447 A EP 13722447A EP 2866987 A1 EP2866987 A1 EP 2866987A1
Authority
EP
European Patent Office
Prior art keywords
tool
movement
unit
coupling device
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13722447.3A
Other languages
German (de)
English (en)
Other versions
EP2866987B1 (fr
Inventor
Jens Zieger
Uwe Engelfried
Petr Grulich
Thomas Duerr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2866987A1 publication Critical patent/EP2866987A1/fr
Application granted granted Critical
Publication of EP2866987B1 publication Critical patent/EP2866987B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/14—Arrangements for stretching the chain saw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar

Definitions

  • tool coupling devices for receiving a closed-system power tool separating device having a cutting-strand clamping unit for generating a cutting-line clamping force and a tool-holding unit comprising a movably mounted tool-holding element.
  • the invention is based on a tool coupling device for receiving a power-tool parting device, in particular a closed-system power tool separating device, with at least one cutting-strand clamping unit for generating a cutting-edge clamping force and with at least one tool-holding unit comprising at least one movably mounted tool-holding element.
  • the tool coupling device comprises at least one movement coupling unit, via which the tool holding element can be coupled to a movement of a clamping element of the cutting strand clamping unit with the clamping element.
  • the clamping element is preferably connected in at least one direction of movement via the movement coupling unit in a movement-dependent manner with the tool holding element.
  • the tool coupling device is preferably provided for receiving the machine tool separating device in a form-fitting and / or non-positive manner or for separating the machine tool separating device by means of a form-fitting and / or by means of a to fix a frictional connection by means of the tool holding unit to a main body of the tool coupling device.
  • the term "provided” is to be understood to mean in particular specially programmed, designed and / or equipped
  • the power-tool parting device is preferably received by the tool-coupling device or fixed to the main body of the tool-coupling device in order to transmit drive forces to the power-tool parting device.
  • the tool holding element preferably exerts a holding force on the machine tool separating device, at least in one state, in particular in at least one state of the machine tool separating device connected to the tool coupling device.
  • the tool holding element preferably fixes the machine tool separating device by means of a positive locking and / or by means of a non-positive connection to the main body of the tool coupling device.
  • the tool holding element is particularly preferably provided for generating a holding force in at least one tool fixing position of the tool holding element.
  • the tool holding element is provided by means of the movement coupling unit for an actuation of the cutting strand clamping unit.
  • the tool holding member is pivotally mounted about an at least substantially parallel to a main extension plane of the Malawihalteele- element extending movement axis of the tool holding member.
  • substantially parallel is to be understood here as meaning, in particular, an alignment of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction is a deviation, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than
  • the term "main extension plane” should in particular define a plane in which the tool holding element has a maximum extension.
  • the tool holding element is in this case preferably pivotable about a pivoting angle, which is in particular greater than 5 °, preferably greater than 45 ° and particularly preferably greater than 75 °.
  • the main extension plane of the tool holding element preferably extends in a tool holding element pivoted completely into an opening position, at least substantially parallel to a rotational axis of the main body Tool coupling device rotatably mounted drive element.
  • the axis of movement of the tool holding element preferably extends at least substantially perpendicular to the axis of rotation of the drive element, rotatably mounted in the main body of the tool coupling device, of the tool coupling device or a portable machine tool comprising the tool coupling device.
  • the term "substantially perpendicular” is intended here to define, in particular, an orientation of a direction relative to a reference direction, the direction and the reference direction, in particular in one plane, including an angle of 90 ° and the angle a maximum deviation of, in particular, less than 8
  • the tool holding element is preferably rotatably mounted about a movement axis of the tool holding element extending at least substantially perpendicular to a main extension plane of the tool holding element
  • Tool holding member preferably extends at least substantially perpendicular to the axis of rotation of the drive element.
  • cutting strand clamping unit should in particular define a unit which is intended to exert a clamping force on the cutting strand for clamping or prestressing a cutting strand of the power-tool parting device at least in a state connected to the tool-coupling device.
  • the tensioning element is hereby preferably movably mounted on the main body of the tool coupling device relative to the main body of the tool coupling device
  • the expression "translationally movably supported” is intended here in particular to support a unit and / or an element relative to at least a further unit and / or a further element, wherein the unit and / or the element, in particular decoupled from an elastic deformation of the unit and / or the element and entko Ppelt of conditionally caused by a bearing clearance movement possibilities, a movement possibility along at least one axis along a distance greater than 1 mm, preferably greater than 5 mm and more preferably greater than 10 mm.
  • an automatic clamping operation be realized by means of the cutting strand clamping unit by an operation of the tool holding member.
  • a holding force for fixing a machine tool separating device on the base body of the tool coupling device and at the same time a tension of a cutting strand of the machine tool separating device fixed to the tool coupling device can advantageously be achieved.
  • the movement coupling unit has at least one link element for a movement of the clamping element as a result of a movement of the tool holding element.
  • a "gate element” is to be understood here in particular as an element which has at least one recess, in particular a groove, into which a further element corresponding to the element engages and / or which has at least one extension which projects into a recess of a engaging the element corresponding further element, wherein due to a movement of the element a
  • the link element is designed as a crank disc or as Kulissentranslationselement.
  • the clamping element engages in the recess of the link element.
  • the movement coupling unit has at least one spring element, which is provided to act on the clamping element and / or the link element with a spring force.
  • a "spring element” is to be understood, in particular, as a macroscopic element which has at least two spaced-apart ends, which are elastically movable relative to one another along a movement path in a normal operating state, wherein the
  • Movement distance is at least greater than 0.5 mm, in particular greater than 1 mm, preferably greater than 2 mm and more preferably greater than 3 mm, and in particular one of an elastic movement of the ends relative to each other and preferably to the elastic Movement of the ends generated relative to each other proportional counterforce, which counteracts the change.
  • a "macroscopic element” is to be understood as meaning, in particular, an element having an extension of at least 1 mm, in particular of at least 5 mm and preferably of at least 10 mm, the spring element being designed as a tension spring, as a compression spring, as a torsion spring, as a spiral spring, etc.
  • the spring element is particularly preferably designed as a helical compression spring or as a leg spring, but it is also conceivable that the spring element may be used as another useful one to a person skilled in the art. has seeming configuration.
  • a movement of the clamping element in dependence on a movement of the tool holding element can be achieved structurally simple.
  • a bias of the clamping element in at least one operating position, in particular in a clamping position can be achieved by means of the spring element.
  • the link element is mounted translationally movable.
  • the link element preferably has a movement axis which runs at least substantially perpendicular to the axis of rotation of the drive element.
  • the link element is guided translationally by two linear guide elements of the movement coupling unit extending at least substantially parallel to one another.
  • the link element is rotatably mounted.
  • the link element preferably has a movement axis which extends at least substantially parallel to the axis of rotation of the drive element. It can be achieved advantageously a flat construction motion coupling unit. Thus, advantageously, a compact tool coupling device can be achieved.
  • the movement coupling unit comprises at least one lever element, via which the tool holding element can be coupled to a movement of the clamping element with a link element of the movement coupling unit.
  • a “lever element” is to be understood here as meaning, in particular, an element which is pivotably mounted at least about a movement axis of the element and in particular has a maximum extent along a direction extending at least substantially perpendicular to the movement axis, in order to form at least one lever arm is designed as a two-sided lever element, which, viewed from the axis or a pivot point in two oppositely directed directions, respectively forms a load arm and a force arm It is conceivable that the movement coupling unit has a multiplicity of lever elements which result in a movement of the tension element a movement of the tool holding member cooperate with each other or each other are connected.
  • the movement coupling unit comprises at least one eccentric element which is formed integrally with the tool holding element.
  • An "eccentric element” is to be understood here as meaning, in particular, an element which is mounted so as to be pivotable about at least one movement axis of the element, a center, in particular a center of symmetry, of the element being arranged outside the movement axis
  • the term "integral” should be understood to mean, in particular, at least materially bonded, for example, by a welding process, an adhesive process, an injection process and / or another process which appears expedient to the person skilled in the art and / or advantageously molded in one piece , such as by a production from a cast and / or by a production in a one- or multi-component injection molding process and advantageously from a single blank.
  • the tool holding unit comprises at least one fixing element which is provided to fix the tool holding element in at least one position.
  • the fixing element is pivotally mounted.
  • the fixing element is mounted translationally movable.
  • Embodiment can be advantageously used a lever principle to actuate the fixing.
  • a comfortable-to-use fixing can be achieved.
  • the invention is based on a portable power tool with a tool coupling device according to the invention.
  • the tool coupling device is preferably for positive and / or non-positive coupling ment provided with a machine tool separating device.
  • a "portable power tool” is to be understood here as meaning, in particular, a power tool, in particular a power tool, which can be transported without transport by an operator kg and particularly preferably less than 5 kg.
  • a portable machine tool can advantageously be achieved on which a machine tool separating device can be arranged in a particularly convenient manner and at least one guide unit which forms a closed system together with the cutting strand.
  • a "cutting strand” is to be understood here in particular as meaning a unit which is intended to provide atomic cohesion locally picking work, in particular by means of a mechanical separation and / or by means of a mechanical removal of material particles of the workpiece.
  • the cutting strand is intended to separate the workpiece into at least two physically separate parts and / or at least partially separate and / or remove material particles of the workpiece starting from a surface of the workpiece.
  • the cutting strand is preferably formed as a cutting chain.
  • the cutting strand it is also conceivable for the cutting strand to have another configuration which appears expedient to a person skilled in the art, for example an embodiment as a cutting line on which cutting elements are fixed.
  • guide unit should in particular define a unit which is provided for exerting a constraining force on the cutting strand at least along a direction perpendicular to a cutting direction of the cutting strand, in order to allow movement of the cutting strand along the cutting direction
  • a direction can be understood, along which the cutting strand for generating a cutting gap and / or for the removal and / or removal of material particles of a workpiece to be machined in at least one operating state as a result of a driving force and / or a drive torque, in particular in the guide unit , is moved.
  • the cutting strand is moved in an operating state along the cutting direction relative to the guide unit.
  • closed system should in particular define a system that comprises at least two components which, by means of an interaction in a disassembled state of the system, retain functionality from a higher-level system, in particular the tool-coupling device, and / or which are permanently connected to one another in the disassembled state.
  • the at least two components of the closed system are at least substantially inseparably connected with each other for an operator.
  • at least substantially insoluble should be understood in particular a connection of at least two components that only with the aid of separation tools, such as a saw, in particular a mechanical saw, etc., and / or chemical
  • Separating agents such as solvents, etc., are separable from each other.
  • the machine tool separating device has a maximum dimension of less than 10 mm, preferably less than 8 mm and particularly preferably less than 5 mm, viewed along a direction extending at least substantially perpendicular to a cutting plane of the machine tool separating device.
  • the dimension is formed as the width of the machine tool separating device.
  • the power-tool parting device viewed along the direction running at least substantially perpendicular to the cutting plane of the power-tool parting device, has an at least substantially constant maximum dimension along an overall length of the power-tool-splitting device.
  • the power-tool parting device is preferably provided to produce a cutting gap which, viewed along the direction running at least substantially perpendicular to the cutting plane of the machine-tool separating device, has a maximum dimension of less than 5 mm.
  • inventive Tool coupling device the portable power tool according to the invention and / or the power tool system according to the invention should / should not be limited to the application and embodiment described above.
  • inventive Tool coupling device, the portable power tool according to the invention and / or the power tool system according to the invention for performing a function described herein have a number differing from a number of individual elements, components and units mentioned herein.
  • FIG. 1 shows a portable power tool according to the invention with a tool coupling device according to the invention in a schematic representation
  • FIG. 2 shows a detailed view of the tool coupling device according to the invention in a schematic representation
  • FIG. 3 shows a sectional view of the tool coupling device according to the invention in a schematic representation
  • FIG. 4 is a detail view of a movement coupling element of a
  • FIG. 5 shows a sectional view of the tool coupling device according to the invention with a machine tool separating device arranged in the tool coupling device according to the invention, in a schematic representation
  • FIG. 6 shows a further sectional view of the tool coupling device according to the invention with the tool coupling according to the invention.
  • FIG. 15 a further detailed view of the further, alternative tool coupling device according to the invention from FIG. 15 in a schematic representation
  • FIG. 17 shows a further detailed view of the further alternative tool coupling device according to the invention from FIG. 17 in a schematic representation
  • 19 is a detailed view of another, alternative tool coupling device according to the invention in a schematic representation
  • FIG. 20 shows a further detailed view of the further, alternative tool coupling device according to the invention from FIG. 19 in a schematic illustration and FIG
  • FIG. 21 shows a sectional view of the further alternative tool coupling device according to the invention from FIG. 19 in a schematic representation.
  • FIG. 1 shows a portable power tool 32a having a tool coupling device 10a of the portable power tool 32a
  • Machine tool separating device 12a The portable power tool 32a and the power tool separating device 12a together constitute a machine tool system.
  • the power-tool parting device 12a comprises at least one cutting strand 34a and at least one guide unit 36a for guiding the cutting strand 34a.
  • Cutting strand 34a together form a closed system.
  • the power tool separating device 12a is formed as a closed system.
  • the portable power tool 32a has the tool coupling device 10a for the positive and / or non-positive coupling of the machine tool separating device 12a.
  • the tool coupling device 10a for the positive and / or non-positive coupling of the machine tool separating device 12a.
  • the tool coupling device 10a comprises at least one cutting strand clamping unit 14a for generating a cutting strand clamping force and at least one convincedhal- teech 16a, the at least one movably mounted tool holding element
  • the portable power tool 32a has a machine tool housing 38a enclosing a drive unit 40a and an output gear unit 42a of the portable power tool 32a.
  • the drive unit 40a and the output gear unit 42a are operatively connected together to produce a drive torque transmittable to the machine tool separating device 12a in a manner already known to a person skilled in the art.
  • the output gear unit 42a is formed as an angular gear.
  • the drive unit 40a is designed as an electric motor unit. However, it is also conceivable that the drive unit 40a and / or the output gear unit 42a have another, to those skilled seems appropriate embodiment, such as an embodiment of the drive unit 40a as a hybrid drive unit or as a combustion drive unit, etc.
  • the drive unit 40a is provided to drive the cutting strand 34a of the machine tool cutting device 12a in at least one operating state via the output gear unit 42a.
  • FIG. 2 shows the tool coupling device 10a in a state disassembled by the portable power tool 32a.
  • the tool coupling device 10a comprises a base body 46a, which is rotatably mounted in a connection housing 48a of the tool coupling device 10a.
  • the base body 46a is in this case rotatably mounted about a rotational axis 50a of a drive element 52a of the tool coupling device 10a in the connection housing 48a.
  • the attachment case 48a is fixed to the machine tool housing 38a of the portable power tool 32a in a state of the tool coupling device 10a mounted on the portable power tool 32a.
  • the tool coupling device 10a has at least one rotary positioning unit 54a.
  • the rotational positioning unit 54a in this case comprises at least one positioning element 56a for fixing the base body 46a in a position relative to the connection housing 48a.
  • the positioning element 56 a is in this case designed as a spring-biased locking pin, which with
  • the main body 46a further has a rotational play opening 58a (FIG. 3) in which the drive element 52a of the tool coupling device 10a is arranged.
  • the drive element 52a viewed along a direction extending at least substantially perpendicular to the axis of rotation 50a of the drive element 52a, is arranged at a distance from a peripheral region of the main body 46a that delimits the rotational play opening 58a relative to the main body 46a.
  • the drive element 52a is designed as a drive gear.
  • the connection housing 48a comprises a bearing recess 60a in which a bearing element 62a of the tool coupling device 10a is arranged for rotatable mounting of the drive element 52a.
  • the bearing element 62a is designed as a bearing sleeve. However, it is also conceivable that the bearing element 62a is formed as Wälzla- ger.
  • the drive member 52a is provided to transmit a drive force of the drive unit 40a to the cutter string 34a.
  • the drive element 52a engages in the cutting strand 34a in a state connected to the tool coupling device 10a of the power-tool parting device 12a.
  • the drive element 52a engages in drive recesses of cutting strand segments of the cutting strand 34a (not shown here in detail).
  • the drive element 52a is non-rotatable with an output element (not shown here)
  • the tool holding element 18a of the tool holding unit 16a of the tool coupling device 10a is mounted pivotably about a movement axis 64a of the tool holding element 18a extending at least substantially parallel to a main extension plane of the tool holding element 18a.
  • the tool holding member 18a is pivotally mounted on the main body 46a.
  • the movement axis 64a of the tool holding member 18a extends, as viewed in a projection plane in which the movement axis 64a and the rotation axis 50a of the drive member 52a are projected, at least substantially perpendicular to the rotation axis 50a.
  • the tool holding member 18a is pivotally mounted at less than 120 ° relative to the base body 46a. However, it is also conceivable that the tool holding element 18a is mounted pivotably relative to the base body 46a by an angle deviating from 90 °.
  • the tool holding unit 16a further has at least one fixing element 30a, which is provided to fix the tool holding element 18a in at least one position.
  • the fixing member 30a is provided to fix the tool holding member 18a in a tool fixing position of the tool holding member 18a.
  • the fixing element 30a is pivotally mounted for this purpose.
  • the fixing member 30a is pivotally mounted on the tool holding member 18a.
  • the fixing element 30a comprises at least two latching areas 66a, 68a. However, it is also conceivable that the fixing element 30a has one of two different number of latching areas 66a, 68a.
  • the latching areas 66a, 68a when viewed in a plane extending at least substantially perpendicular to the main extension plane of the tool holding element 18a or viewed in a plane extending at least substantially parallel to the axis of rotation 50a of the drive element 52a, are circular-arc-shaped and each delimit a circular-arc-shaped latching recess.
  • the latching regions 66a, 68a cooperate in a control element fixing position of the fixing element 30a with fixing bolts 70a, 72a of the tool holding unit 16a (FIG. 6).
  • the fixing bolts 70a, 72a are fixed to the main body 46a.
  • the fixing element 30a is provided to fix the tool holding member 18a by means of a positive connection in the tool fixing position.
  • the fixing element 30a also has a securing recess 74a which, in the tool-holding-element fixing position of the fixing element 30a, has a latching extension
  • the latching extension 76a is in this case arranged on the main body 46a.
  • the latching projection 76a is integrally formed on the base body 46a.
  • the latching extension 76a it is also conceivable for the latching extension 76a to be formed separately from the base body 46a and fastened to the base body 46a by means of a fastening element that appears appropriate to a person skilled in the art.
  • the power-tool parting device 12a In the tool fixing position, the power-tool parting device 12a, in particular the guide unit 36a, is in a state of the power-tool parting device coupled to the tool-coupling device 10a.
  • tion 12a acted upon by means of the tool holding member 18a in a receiving recess 78a of the base body 46a in the direction of the base body 46a with a clamping force.
  • This clamping force is generated by means of a pivoting movement of the tool holding element 18a in the direction of the receiving recess 78a and by means of an interaction of the fixing element 30a and the fixing bolts 70a, 72a in the tool fixing position of the tool holding element 18a.
  • the tool holding member 18a abuts a generation of a holding force in the direction of the main body 46a in a tool fixing position of the tool holding member 18a on an outer surface of the guide unit 36a.
  • the tool holding member 18a holds the machine tool separating device
  • the tool holding unit 16a is provided to act on the power-tool parting device 12a coupled to the tool coupling device 10a state of the machine tool separating device 12a with at least substantially parallel to the axis of rotation 50a of the drive member 52a extending direction.
  • the tool holding unit 16a has another, to a professional appear appropriate design.
  • the machine tool separating device 12a is further secured in a coupled to the tool coupling device 10a state of the machine tool separating device 12a by means of the receiving recess 78a of the base body 46a form-fitting against rotational movement along a rotation axis 50a of the drive member 52a extending direction of rotation.
  • the receiving recess 78a forms at least one
  • the receiving recess 78a has a shape corresponding to an outer shape of at least one partial area of the machine tool separating device 12a, in particular of a partial area of the guide unit 36a.
  • the receiving recess 78a as a negative mold at least a portion of the machine tool separating device 12a, in particular a portion of the guide unit 36a, formed.
  • the main body 46a it is also conceivable for the main body 46a to be another embodiment that appears appropriate to a person skilled in the art. 1, which can largely prevent a rotational movement of the power-tool parting device 12a in a state of the power-tool parting device 12a coupled to the tool-coupling device 10a.
  • the tool coupling device 10a comprises at least one movement coupling unit 20a, via which the tool holding element 18a can be coupled to a movement of a clamping element 22a of the cutting strand clamping unit 14a with the clamping element 22a.
  • the clamping element 22a is mounted in a translationally movable manner in a guide recess 80a of the main body 46a.
  • the guide recess 80a is disposed in the receiving recess 78a.
  • the clamping element 22a is designed as a clamping bolt, which engages in a coupled to the tool coupling device 10a state of the machine tool separating device 12a in a clamping recess 82a ( Figure 5) of the power tool separating device 12a.
  • the tensioning element 22a is formed integrally with a movement coupling element 84a of the movement coupling unit 20a.
  • the clamping element 22a is formed separately from the movement coupling element 84a and is fixed by means of a positive and / or non-positive connection to the movement coupling element 84a.
  • the movement coupling element 84a is mounted translationally movable in the base body 46a.
  • the movement coupling element 84a comprises an actuating region 86a which cooperates with a transmission element of the movement coupling unit 20a to move the tensioning element 22a as a result of a movement of the tool holding element 18a.
  • the transmission element of the movement coupling unit 20a is in this case designed as an eccentric element 28a (FIG.
  • the movement coupling unit 20a comprises at least the eccentric element 28a, which cooperates with the clamping element 22a to move the clamping element 22a as a result of a movement of the tool holding element 18a via the movement coupling element 84a.
  • the eccentric element 28a is formed integrally with the tool holding element 18a (FIG. 3).
  • the eccentric element 28a is arranged eccentrically or asymmetrically with respect to the movement axis 64a of the tool holding element 18a on the tool holding element 18a.
  • the cutting strand clamping unit 14a has at least one spring element 88a, which is provided to the clamping element 22a with a spring force apply.
  • the spring element 88a is supported with one end on the main body 46a and with a further end, the spring element 88a is supported on a clamping force support region 90a of the movement coupling element 84a.
  • the movement coupling element 84a to support a clamping force of the clamping element 22a additional clamping and / or locking of the movement coupling element 84a on the base body 46a is possible, such as by a rough surface of the movement coupling element 84a or by a locking unit, etc.
  • the clamping force support portion 90a and the actuating portion 86a of the movement coupling element 84a are in this case via a connection region 92a of the
  • Motion coupling element 84a connected to each other.
  • the connection region 92a has an elliptical shape (FIG. 4).
  • the spring element 88a is compressed as a result of an interaction of the eccentric element 28a and the actuating region 86a of the movement coupling element 84a.
  • a coupling of the power-tool parting device 12a to the work-part coupling device 10a becomes the power-tool parting device
  • the tool holding element 18a is arranged in the position pivoted away from the main body 46a.
  • the drive element 52a is inserted into a coupling recess 94a of the guide unit 36a (FIG. 5).
  • the cutting strand 34a engages with the drive element 52a.
  • the clamping element 22a is inserted into the clamping recess 82a of the guide unit 36a.
  • the eccentric member 28a releases the operating portion 86a of the movement coupling member 84a.
  • the movement coupling element 84a together with the clamping element 22a, is translationally moved away from the drive element 52a by a spring force of the spring element 88a. directed direction moves in a clamping position of the clamping element 22a.
  • the guide unit 36a is moved relative to the drive element 52a. This leads to a tensioning of the cutting strand 34a by the spring force of the spring element 88a or by the movement of the clamping element 22a. This achieves a cutting strand clamping force to tension the cutting strand 34a.
  • FIGS. 7 to 21 show alternative exemplary embodiments. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, the letters a to g are added to the reference numerals of the embodiments. The following description is restricted essentially to the differences from the first exemplary embodiment in FIGS. 1 to 6, wherein reference can be made to the description of the first exemplary embodiment in FIGS. 1 to 6 with regard to components, features and functions remaining the same.
  • FIG. 7 shows an alternative tool coupling device 10b, which is provided for receiving a machine tool separating device 12b designed as a closed system, in a state disassembled by a portable power tool (not shown here in detail).
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separator 12b together form a machine tool system.
  • the tool coupling device 10b um- includes at least one cutting strand clamping unit 14b for generating a cutting strand clamping force and at least one tool holding unit 16b, which has at least one movably mounted tool holding element 18b.
  • the tool holding element 18b is in this case rotatable about an at least substantially perpendicular to a main extension plane of the tool holding element
  • the tool holding element 18b is provided for the machine tool separating device in a tool fixing position of the tool holding element 18b
  • the tool holding member 18b is formed annular-segment-shaped.
  • the tool holding element 18b is rotatably mounted in the base body 46b.
  • the tool holding element 18b has a helical or a thread-shaped clamping region 98b.
  • the clamping portion 98b is disposed on an outer periphery of the tool holding member 18b.
  • the clamping region 98b at another, on a specialist appear useful position on the tool holder
  • the chucking portion 98b has a slope as viewed along a circumferential direction around the rotation axis 50b of the driving member 52b.
  • the clamping area 98b is along a total extent of the clamping area 98b relative to a main plane of extension of the
  • Tool holding member 18b inclined.
  • the clamping region 98b cooperates to generate a clamping force with a clamping groove (not shown here in detail) of the base body 46b into which the clamping region 98b engages.
  • the tool holding unit 16b comprises at least one operating element 96b for an actuation or for a movement of the tool holding element 18b.
  • the operating element 96b For a movement of the tool holding element 18b, the operating element 96b is rotated about a rotation axis 100b of the operating element 96b.
  • the axis of rotation 100b of the operating element 96b extends in this case at least substantially parallel to the axis of rotation 50b of the drive element 52b.
  • the tool holding element 18b comprises a bolt-shaped actuating region 102b (FIG. 9).
  • the actuation region 102b is arranged in a mounted state of the tool holding element 18b in a circular-segment-segment-shaped movement guide recess 104b of the main body 46b (FIG
  • the operating member 96b has a movement transmitting member 106b provided to receive the operating portion 102b of the tool holding member 18b.
  • the movement transmission element 106b is designed as a cup-shaped depression, which is formed corresponding to the bolt-shaped actuating region 102b of the tool-holding element 18b.
  • the motion transmission element 106b it is also conceivable for the motion transmission element 106b to have another configuration which appears appropriate to a person skilled in the art, such as a design as a circular through-bore, etc.
  • the tool coupling device 10b comprises at least one
  • Motion coupling unit 20b via which the tool holding member 18b is coupled to a movement of a clamping element 22b of the cutting strand clamping unit 14b with the clamping element 22b.
  • the clamping element 22b is mounted in a translationally movable manner in a guide recess 80b of the main body 46b of the tool coupling device 10b.
  • the movement coupling unit 20b has at least one link element 24b for a movement of the clamping element 22b as a result of a movement of the tool holding element 18b.
  • the link element 24b is rotatably mounted here.
  • the link element 24b is designed as a link disc, which has at least one clamping element guide link 1 10b and at least two link element guide recesses 12b, 14b (FIG. 9).
  • the clamping element 22b is arranged in a mounted state in the clamping element guide slot 1 10b.
  • the clamping element guide slot 1 10b has a helical course relative to the axis of rotation 50b of the drive element 52b.
  • the cutting strand clamping unit 14b comprises at least one spring element
  • the movement coupling unit 20b comprises at least one link spring element 108b, which is provided to bias the gate element 24b with a spring force ( Figures 8 and 9).
  • the link spring element 108b is designed as a leg spring. In this case, the link spring element 108b is supported at one end on the main body 46b, and with a further end the link spring element 108b is supported on the link element 24b.
  • the link element 24b is moved counter to the spring force of the link spring element 108b by means of the tool holding element 18b or by means of a rotational movement of the operating element 96b through the tool holding element 18b.
  • the tool holding member 18b on a driving extension 1 16b, which extends in the direction of the link element 24b.
  • the driving extension 16b acts to move the link element 24b with a movement driving portion 1 18b of the link element 24b together ( Figure 9).
  • the slide element 24b is moved at least in one direction as a function of a movement of the tool holding element 18b together with the
  • Tool holding member 18b moves.
  • the tensioning element 22b is moved into a guide unit insertion position as a result of a movement of the link element 24b by means of the tensioning element guide link 1 10b.
  • the tool holding element 18b releases a receiving recess 78b of the main body 46b for receiving the machine tool separating device 12b.
  • the guide recess 80b, in which the clamping element 22b is guided, is arranged on the main body 46b in the region of the receiving recess 78b.
  • the power tool separating device 12b along at least substantially parallel to the rotation axis 50b of the drive member 52b extending direction into the receiving recess 78b are introduced. Subsequently, as a result of a rotational movement of the operating element 96b, the tool holding element 18b is moved into a clamping position, whereby a clamping force is exerted on the machine tool separating device 12b in the direction of the main body 46b.
  • the link element 24b is rotated as a result of the spring force of the link spring element 108b and the clamping element 22b is moved by means of the clamping element guide slot 1 10b translationally in the guide recess 80b.
  • a tion unit 36b of the power tool separating device 12b moves relative to the drive element 52b.
  • an automatic clamping of the cutting strand 34b takes place as a result of a clamping of the power-tool parting device 12b in the receiving recess 78b of the main body 46b.
  • the clamping element guide slot 1 10b is in this case designed such that by means of an interaction of the clamping element guide slot 1 10b with the
  • Spring element 88b and the link spring element 108b is a self-locking movement of the clamping element 22b in a ceremoniessakuseinfuelposition.
  • the link spring element 108b acts via the link element 24b on the tool holding element 18b, which in turn acts on the operating element 96b.
  • the tool holding element 18b is acted upon by the spring force of the link spring element 108b in the clamping position.
  • the tool holding element 18b and the operating element 96b are mounted decoupled from the spring force and are held in the clamping position by means of a fixing unit of the tool coupling device 10b.
  • FIG. 10 shows a further, alternative tool coupling device 10c which is provided for receiving a machine tool separating device 12c designed as a closed system (FIG. 12) in a state disassembled by a portable machine tool (not shown here in detail).
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separator 12c together form a machine tool system.
  • the tool coupling device 10c comprises at least one cutting-strand clamping unit 14c for generating a cutting-strand clamping force and at least one tool-holding unit 16c, which has at least one movably mounted tool-holding element 18c.
  • the tool holding element 18c is pivotable about an at least substantially parallel to a main extension plane of the tool holding element 18c or at least substantially perpendicular to a rotational extension plane. onsachse 50c of a drive element 52c of the tool coupling device 10c extending movement axis 64c of the tool holding member 18c stored. Furthermore, the tool coupling device 10c comprises at least one movement coupling unit 20c, via which the tool holding element 18c can be coupled to a movement of a clamping element 22c of the cutting strand clamping unit 14c with the clamping element 22c.
  • the movement coupling unit 20c has at least one link element 24c for a movement of the clamping element 22c as a result of a movement of the tool holding element 18c.
  • the link element 24c is mounted translationally movable. In this case, the link element 24c is guided in an axial bearing recess 120c of a base body 46c of the tool coupling device 10c (FIG. 11).
  • the link element 24c comprises a clamping element guide link 10c for a movement of the clamping element 22c.
  • the clamping element guide slot 1 10c has an at least substantially transversely to a movement axis of the link element 24c extending course. Thus, the clamping element guide link 1 10c is inclined relative to the movement axis of the link element 24c.
  • the movement coupling unit 20c comprises at least one lever element 26c, via which the tool holding element 18c can be coupled to a movement of the clamping element 22c with a link element 24c of the movement coupling unit 20c.
  • the lever element 26c is rotatably mounted about an axis of movement of the lever element 26c extending in the base body 46c at least substantially parallel to the axis of rotation 50c of the drive element 52c.
  • the lever element 26c bears against the link element 24c with one end.
  • the lever element 26c is rotatably mounted about an axis of movement of the lever element 26c extending in the base body 46c at least substantially parallel to the axis of rotation 50c of the drive element 52c.
  • the movement coupling unit 20c comprises at least one spring element 88c, which is provided to act on the link element 24c with a spring force.
  • the spring element 88c is designed as a leg spring.
  • the spring element 88c is supported with one end on the base body 46c and with a further end, the spring element 88c is supported on the link element 24c.
  • the tool holding unit 16c has at least one fixing element 30c, which is provided to fix the tool holding element 18c in at least one position.
  • the fixing element 30c has an analogous configuration to that in FIGS. 1 to 6. written fixing 30a.
  • the tool holding member 18c is fixed in a tool fixing position of the tool holding member 18c by the fixing member 30c (FIG. 12).
  • the power-tool parting device 12c is inserted along a direction at least substantially parallel to the axis of rotation 50c of the drive element 52c into a receiving recess 78c of the main body 46c.
  • the tool holding element 18c is arranged in a position pivoted away from the base body 46c.
  • the drive element 52c is inserted into the receiving recess 78c when inserting the power-tool parting device 12c into a coupling recess 94c of a guide unit 36c of the power-tool parting device 12c.
  • a cutting strand 34c of the power-tool parting device 12c engages with the drive element 52c.
  • the clamping element 22c is inserted into a clamping recess 82c of the guide unit 36c.
  • the tool holding element 18c actuates the lever element 26c by means of an eccentric element 28c of the movement coupling unit 20c formed integrally with the tool holding element 18c.
  • the lever member 26c is thereby pivoted about the movement axis of the lever member 26c and actuates the link member 24c.
  • the link element 24c is moved in translation.
  • the tension member 22c is moved to a guide unit insertion position by the tensioner guide cam 1 10c.
  • the tool coupling device 10c may be on the
  • FIG. 13 shows a further, alternative tool coupling device 10d which is provided for receiving a machine tool separating device 12d designed as a closed system (FIG. 14) in a state disassembled by a portable machine tool (not shown here).
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separator 12d together form a power tool system.
  • the tool coupling The device 10d comprises at least one cutting-strand clamping unit 14d for generating a cutting-strand clamping force and at least one tool-holding unit 16d, which has at least one movably mounted tool-holding element 18d.
  • the tool holding element 18d is pivotally mounted about a movement axis 64d of the tool holding element 18d extending at least substantially parallel to a main extension plane of the tool holding element 18d or about an axis of movement 64d of the tool coupling device 10d running at least substantially perpendicular to a rotation axis 50d of a drive element 52d.
  • the tool coupling device 10d comprises at least one movement coupling unit 20d, via which the tool holding element 18d can be coupled to a movement of a clamping element 22d of the cutting strand clamping unit 14d with the clamping element 22d.
  • the movement coupling unit 20d has an analogous configuration to that described in FIGS. 1 to 6
  • the tool holding unit 16d has at least one fixing element 30d, which is provided to fix the tool holding element 18d in at least one position.
  • the fixing element 30d is designed here as a wing nut.
  • the fixing element 30d is rotatably and translationally movably mounted in a fixing recess 124d of the tool holding element 18d (FIG. 14).
  • the fixing element 30d cooperates to fix the tool holding element 18d to a threaded region 126d of the clamping element 22d.
  • FIG. 15 shows a further, alternative tool coupling device 10e, which is provided for receiving a machine tool separating device designed as a closed system (not shown here in detail) in a portable machine tool (not shown here in detail). th state.
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separating device together form a machine tool system.
  • the tool coupling device 10e comprises at least one cutting-strand clamping unit 14e for generating a cutting-strand clamping force and at least one tool-holding unit 16e, which has at least one movably mounted tool-holding element 18e.
  • the tool holding element 18e is pivotably mounted about a movement axis 64e of the tool holding element 18e extending at least substantially parallel to a main extension plane of the tool holding element 18e or about an axis of motion 64e of the tool coupling device 10e extending at least substantially perpendicular to a rotational axis 50e of a drive element 52e. Furthermore, the tool coupling device 10e comprises at least one movement coupling unit 20e, via which the tool holding element 18e can be coupled to a movement of a clamping element 22e of the cutting strand clamping unit 14e with the clamping element 22e.
  • the movement coupling unit 20e has at least one link element 24e for a movement of the clamping element 22e as a result of a movement of the tool holding element 18e.
  • the link element 24e is rotatably mounted.
  • the link element 24e is rotatably mounted in a main body 46e of the tool coupling device 10e.
  • the link element 24e furthermore has at least one clamping element guide slot 1 10e for a movement of the clamping element 22e as a result of a movement of the tool holding element 18e.
  • the movement coupling unit 20e comprises at least one lever element 26e which, as a result of a movement of the tool holding element 18e, moves the link element 24e to a movement of the clamping element 22e.
  • the lever element 26e is in this case mounted pivotably about a movement axis of the lever element 26e in the base body 46e.
  • the movement axis of the lever element 26e in this case runs at least substantially parallel to the movement axis 64e of the tool holding element 18e.
  • the movement coupling unit 20e has a force introduction element 128e, which is mounted pivotably on the tool holding element 18e.
  • the force introduction element 128e is pivotally connected to the lever element 26e by means of a hinge element 130e.
  • the joint element 130e is in this case designed as a hinge pin which engages in each case in a joint eye of the lever element 26e and the force introduction element 128e.
  • the movement coupling unit 20e comprises at least one spring element 88e, which is provided to the gate element 24e with a
  • the spring element 88e is designed as a leg spring.
  • the spring element 88e is supported with one end on the main body 46e and with a further end, the spring element 88e is supported on the link element 24e.
  • the lever element 26e In the direction of the main body 46e, the lever element 26e is actuated by means of the force introduction element 128e. As a result, the lever element 26e releases the link element 24e. The link element 24e is moved by the spring force of the spring element 88e. As a result, the clamping element 22e by means of the clamping element guide slot 1 10e in a clamping position of the clamping element
  • FIG. 17 shows a further, alternative tool coupling device 10f, which is provided for receiving a machine tool separating device 12f (FIG. 18) designed as a closed system, in a state disassembled by a portable machine tool (not shown here in detail).
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separating device 12f together form a machine tool system.
  • the tool coupling device 10 f comprises at least one cutting strand clamping unit 14 f for generating a cutting strand clamping force and at least one tool holding unit 16 f, which has at least one movably mounted tool holding element 18 e.
  • the tool holding element 18f is pivotally mounted about a movement axis 64f of the tool holding element 18f running at least substantially parallel to a main extension plane of the tool holding element 18f or about an axis of motion 64f of the tool coupling device 10f running at least substantially perpendicular to a rotational axis 50f of a drive element 52f.
  • the tool coupling device 10f comprises at least one movement coupling unit 20f, via which the tool holding element 18f can be coupled to a movement of a clamping element 22f of the cutting strand clamping unit 14f with the clamping element 22f.
  • the movement coupling unit 20f has at least one link element 24f for a movement of the clamping element 22f as a result of a movement of the tool holding element 18f.
  • the link element 24f is mounted translationally movable. In this case, the link element 24f is guided in a thrust bearing recess 120f of a main body 46f of the tool coupling device 10f (FIG. 18).
  • the link element 24 f comprises a clamping element guide link 1 10 f for movement of the clamping element 22 f.
  • the clamping element guide slot 1 10f has an at least substantially transversely to a movement axis of the link element 24f extending course. Thus, the clamping element guide link 1 10f is inclined relative to the movement axis of the link element 24f.
  • the movement coupling unit 20f comprises at least one lever element 26f which, as a result of a movement of the tool holding element 18f, moves the link element 24f to a movement of the clamping element 22f.
  • the lever element 26f is rotatably mounted about a movement axis of the lever element 26f running in the main body 46f at least substantially parallel to the axis of rotation 50f of the drive element 52f.
  • the lever element 26f bears against the link element 24f with one end.
  • the lever element 26f has a pressing region 132f, which interacts with the tool holding element 18f.
  • the movement coupling unit 20f comprises at least one spring element 88f, which is provided to apply a spring force to the link element 24f of the movement coupling unit 20f.
  • the spring element 88f is designed as a helical compression spring.
  • the spring element 88f is supported with one end on the main body 46f and with a further end the spring element 88f is supported on the gate element 24f.
  • the spring element 88f is in the
  • FIG. 19 shows a further, alternative tool coupling device 10g, which is provided for receiving a machine tool separating device 12g designed as a closed system, in a state disassembled by a portable machine tool (not shown here in detail).
  • the portable power tool has an analogous configuration to the portable power tool 32a described in FIGS. 1 to 6.
  • the portable power tool and the power tool separating device 12g together form a machine tool system.
  • the tool coupling device 10g has an at least substantially analogous configuration to the tool coupling device 10f described in FIGS. 17 and 18.
  • a movement coupling unit 20g of the tool coupling device 10g has a spring element 88g designed as a leg spring.
  • a tool holding unit 16g of the tool coupling device 10g has at least one fixing element 30g, which is provided to fix a tool holding element 18g in at least one position.
  • the fixing element 30g is pivotally mounted in a base body 46g of the tool coupling device 10g (FIG. 21).
  • the tool holding unit 16g also has a fixing spring element 134g, which is provided to apply a spring force to the fixing element 30g (FIGS. 20 and 21).
  • the fixing element 30g is thus designed as a spring-biased latching hook, which cooperates to fix the tool-holding element 18g in a tool-fixing position with a fixing extension 136g arranged in the tool-holding element 18g (FIG. 21).
  • the fixing extension 136g is in this case formed integrally with the tool holding element 18g.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

L'invention concerne un dispositif de raccordement d'outil destiné au logement d'un dispositif de séparation de la machine-outil, notamment d'un dispositif de séparation de la machine-outil conçu comme un système fermé, comprenant au moins une unité de serrage (14a; 14b; 14c; 14d; 14e; 14f; 14g) pour brin de coupe permettant la génération d'une force de serrage pour le brin de coupe, et au moins une unité porte-outil (16a; 16b; 16c; 16d; 16e; 16f; 16g) comportant au moins un élément porte-outil (18a; 18b; 18c; 18d; 18e; 18f; 18g) monté mobile. Il est prévu que le dispositif de raccordement d'outil comprenne au moins une unité de couplage de mouvement (20a; 20b; 20c; 20d; 20e; 20f; 20g) qui permette de coupler l'élément porte-outil (18a; 18b; 18c; 18d; 18e; 18f; 18g) destiné au mouvement d'un élément de serrage (22a; 22b; 22c; 22d; 22e; 22f; 22g) de l'unité de serrage (14a; 14b; 14c; 14d; 14e; 14f; 14g) pour brin de coupe, avec l'élément de serrage (22a; 22b; 22c; 22d; 22e; 22f; ; 22g).
EP13722447.3A 2012-06-28 2013-05-14 Dispositif de raccordement d'outil Active EP2866987B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012211096.8A DE102012211096A1 (de) 2012-06-28 2012-06-28 Werkzeugkopplungsvorrichtung
PCT/EP2013/059930 WO2014000950A1 (fr) 2012-06-28 2013-05-14 Dispositif de raccordement d'outil

Publications (2)

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EP2866987A1 true EP2866987A1 (fr) 2015-05-06
EP2866987B1 EP2866987B1 (fr) 2020-04-01

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EP13722447.3A Active EP2866987B1 (fr) 2012-06-28 2013-05-14 Dispositif de raccordement d'outil

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US (1) US9701037B2 (fr)
EP (1) EP2866987B1 (fr)
CN (1) CN104411471B (fr)
DE (1) DE102012211096A1 (fr)
WO (1) WO2014000950A1 (fr)

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Also Published As

Publication number Publication date
CN104411471A (zh) 2015-03-11
US20150290830A1 (en) 2015-10-15
EP2866987B1 (fr) 2020-04-01
US9701037B2 (en) 2017-07-11
DE102012211096A1 (de) 2014-01-16
WO2014000950A1 (fr) 2014-01-03
CN104411471B (zh) 2017-12-19

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