EP2890534A1 - Segment de ligne de coupe - Google Patents

Segment de ligne de coupe

Info

Publication number
EP2890534A1
EP2890534A1 EP13739704.8A EP13739704A EP2890534A1 EP 2890534 A1 EP2890534 A1 EP 2890534A1 EP 13739704 A EP13739704 A EP 13739704A EP 2890534 A1 EP2890534 A1 EP 2890534A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting strand
strand
segment
machine tool
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
EP13739704.8A
Other languages
German (de)
English (en)
Other versions
EP2890534B1 (fr
Inventor
Uwe Engelfried
Petr Grulich
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 EP2890534A1 publication Critical patent/EP2890534A1/fr
Application granted granted Critical
Publication of EP2890534B1 publication Critical patent/EP2890534B1/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
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14—Saw chains
    • B27B33/141—Saw chains with means to control the depth of cut
    • 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
    • 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
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14—Saw chains
    • B27B33/142—Cutter elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/909—Cutter assemblage or cutter element therefor [e.g., chain saw chain]
    • Y10T83/925—Having noncutting depth gauge

Definitions

  • Cutting edge element arranged cutting depth limiting element to limit a maximum depth of cut of the cutting element.
  • the invention is based on a cutting strand segment for a cutting strand of a power-tool parting device, with at least one
  • Cutting carrier element with a cutting element arranged on the cutting element and with at least one cutter support element arranged on the cutting depth limiting element to limit a maximum depth of cut of the cutting element.
  • the cutting depth limiting element limits a maximum cutting depth of the cutting element to a value smaller than 0.5 mm.
  • a "cutting strand segment” is to be understood here as meaning, in particular, a segment of a cutting strand which is intended to be connected to further segments of the cutting strand to form the cutting strand.
  • “Provided” is to be understood here to be in particular specially designed and / or specially equipped.
  • the cutting strand segment is formed as a chain link, which is connected to form the cutting chain preferably formed as a cutting chain with other designed as chain links cutting strand segments.
  • the cutting strand segment has particular a maximum weight which is less than 1 g, preferably less than 0.5 g and more preferably less than 0.2 g.
  • the cutting strand segment as a driving member, as a connecting member, as a cutting member, etc. of a cutting chain may be formed.
  • the cutting strand can be formed here as a single-lance, two-lobe or three-lobe cutting chain.
  • the cutter support element is coupled to form a cutting strand with a further cutter support element of another cutting strand segment of the cutting strand, in particular positively connected.
  • a "blade carrier element” is to be understood here as meaning, in particular, an element on which at least one cutting element is arranged for severing and / or removing material particles of a workpiece to be machined. Tooth (cracking tooth), etc., or as a roof tooth, as a hump tooth, as a standard tooth, in particular as a standard tooth formed with a design having an equilateral triangle design standard tooth, etc.
  • Tooth crawl tooth
  • hump tooth as a standard tooth
  • the cutting element has another tooth shape that appears appropriate to a person skilled in the art.
  • the cutting element is deviating from a planing tooth, Halbm dealtelzahn and Vollm dealtelzahn formed.
  • the cutting element is preferably designed as a standard wood cutting tooth or standard metal cutting tooth
  • the cutting element can be fixed by means of a positive, by means of a non-positive and / or by means of a cohesive connection to the cutter support element
  • the cutting element is formed integrally with the cutter carrier element.
  • one-piece should be understood here to be in particular at least materially bonded, for example by a welding process, an adhesive process, an injection process and / or another process that appears appropriate to a 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-component or multi-component injection molding process and advantageously from a single blank.
  • the cutting strand segment particularly preferably has an on
  • Cutting carrier element arranged connecting recess for receiving a connectable to the cutter support member further Cutting carrier element arranged connecting element.
  • the connecting element is integrally formed on the cutter support element.
  • a distance between a central axis of the connecting element and the connecting recess, a so-called division of the cutting strand, is in particular less than 6 mm, preferably less than 5 mm and particularly preferably less than 4 mm.
  • the connecting element is one of the
  • Cutting carrier elements formed separately formed component.
  • the cutter carrier elements preferably each have two connection recesses, into each of which a connecting element can be inserted, wherein the
  • connecting element after insertion by means of a forming process, such as an embossing process, or is fixed by means of a material connection process to the cutter support member and the other cutter support member.
  • the term "connecting element” is intended here to define in particular an element which is intended to connect at least two components positively and / or non-positively, in particular to connect with each other in a movable manner, in order to transmit a driving force and / or a drive torque
  • an element is to be defined which, when machining a workpiece, limits penetration of the cutting element into the workpiece, in particular during lifting of at least one workpiece chip, to a maximum value and thus a maximum chip thickness of a workpiece chip removed during machining of the workpiece pretends.
  • the cutting depth limiting element is preferably arranged, viewed along a cutting direction of the cutting element, after the cutting element on the cutter carrier element.
  • the Thomastiefenbegrenzungselement is arranged at another, a skilled person appear appropriate position on the cutter support element, such as, considered along the cutting direction of
  • a "cutting direction" is to be understood here in particular a direction along which the cutting element for generating a cutting gap and / or for the separation and / or removal of material particles, in particular of workpiece chips, a workpiece to be machined in at least one operating state as a result of a drive force and / or a drive torque, in particular in a guide unit of the tool machine separator, is moved.
  • the cutting depth limiting element limits a maximum cutting depth of the cutting element to a value smaller than 0.3 mm, in particular to a value smaller than 0.25 mm. It can thus when processing a
  • the cutting strand segment comprises at least one transverse securing element arranged on the cutting carrier element, which is intended to largely secure the cutter carrier element in a mounted state against transverse movement relative to a further cutting carrier element of the cutting strand.
  • the transverse securing element is preferably integrally formed by tensile forming on the cutter carrier element.
  • the transverse securing region is arranged on the cutter carrier element by means of another type of connection which appears appropriate to a person skilled in the art, for example by means of a positive connection method (clip-in by means of resilient hook regions, etc.), by means of a welding process, etc.
  • a "cross-securing element” is to be understood here as meaning, in particular, an element which, as a result of positive locking and / or due to frictional connection, ensures movement along a transverse axis which runs at least substantially perpendicular to a cutting plane of the cutting element
  • it is intended here to define a plane in which the cutting-strand segment is moved to a machining of a workpiece in at least one operating state.
  • the cutting plane is preferably oriented at least substantially transversely to a workpiece surface to be machined.
  • an orientation of one plane and / or one direction relative to another plane and / or another one is intended to be essentially transverse Direction, which preferably deviates from a parallel orientation of the plane and / or the direction relative to the further plane and / or the further direction.
  • the cutting plane is aligned at least substantially parallel to a workpiece surface to be machined in a machining of a workpiece, in particular in a
  • the term "at least substantially parallel” is to be understood here in particular as 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 smaller
  • the transverse securing element is preferably designed to differ from a rivet head or a screw head, Preferably, the transverse securing element is provided to secure or limit a transverse movement by means of a positive connection. that the transverse-securing element is intended to at least secure or limit a transverse movement by means of another manner which appears appropriate to a person skilled in the art, for example by means of a magnetic force, etc.
  • a limitation of a movement of the cutter support elements connected to each other by at least one connecting element relative to one another is defined by means of the transverse securing element along a movement path extending at least substantially perpendicular to the cutting plane of the cutting element in particular by means of the transverse securing element is limited to a value smaller than 5 mm, preferably smaller than 2 mm and particularly preferably smaller than 1 mm
  • the transverse securing element is arranged on the connecting element.
  • the transverse securing element is particularly preferred after a coupling of the cutter carrier element with the other Cutting carrier element formed by a forming process to the connecting element.
  • the cutting carrier element and the further cutter carrier element preferably have at least one clearance fit after a coupling and after a forming of the transverse securing element.
  • a rotatable mounting is realized by means of the clearance fit and by means of an interaction of the connecting element of the cutter carrier element and a connecting recess of the further cutter carrier element.
  • the connecting element is bolt-shaped.
  • the connecting element viewed in a plane extending at least substantially parallel to the cutting plane, has a circular cross-section.
  • the connecting element is cylindrical.
  • the connecting element has another, a skilled person appear appropriate design. It can be achieved structurally simple, a connecting element.
  • the transverse securing element is particularly preferred after a coupling of at least the
  • Cutting strand embossed by means of an embossing device to a connecting element of the cutting strand It can be advantageously achieved a reliable backup of the blade carrier element on the other cutter support element.
  • the transverse securing element has at least one securing region which extends at least substantially parallel to the cutting plane of the cutting element.
  • the securing region has an annular or a circular configuration.
  • the securing area it is also conceivable for the securing area to have another configuration that appears appropriate to a person skilled in the art, such as an embodiment as a circular ring sector or as a partial extension etc.
  • the securing area is particularly preferred as a result of a forming process directly to the connecting element after assembly of the Cutting carrier element and the other cutter support element formed.
  • Cutting carrier element can be realized.
  • Cutting carrier element can be advantageously prevented after a molding of the security area. Furthermore, it is proposed that the cutting strand segment has a maximum volume which is smaller than 20 mm 3 . Preferably, the cutting strand segment has a maximum volume which is less than 10 mm 3 and particularly preferably less than 5 mm 3 . It can be advantageously realized cost-effective production of the cutting strand segment, with a low material terialcri is necessary.
  • the cutting strand segment viewed along a direction at least substantially perpendicular to a cutting plane of the cutting element, has a maximum dimension which is less than 4 mm.
  • the cutting strand segment viewed along the at least substantially perpendicular to a cutting plane of the cutting element direction, has a maximum dimension which is smaller than 3 mm and more preferably smaller than 2.5 mm. It can be advantageously achieved a very compact cutting strand segment, with the introduction of a small cut can be made possible.
  • the invention proceeds from a method for producing at least one cutting strand segment according to the invention.
  • the cutting strand segment is preferably punched in a first step of the method by means of a punching device from a strip material.
  • the connecting element and further functional areas of the cutting strand segment can be formed by means of an interaction of a die and a punch during the punching process to the cutting strand segment.
  • the cutting strand segment is produced by means of a metal injection molding process (MIM process) or by means of another process that appears appropriate to a person skilled in the art.
  • MIM process metal injection molding process
  • the invention is based on a cutting strand for a machine tool separating device, with at least one cutting strand segment according to the invention.
  • a "cutting strand” is here in particular a Unit to be understood, which is intended to locally cancel a nuclear cohesion of a workpiece to be machined, 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 provided 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 moved circumferentially in at least one operating state, in particular along a circumferential direction of a guide unit of the power-tool parting device.
  • the cutting strand is preferably formed by means of a connection of a plurality of cutting strand segments.
  • the cutting strand is preferably formed as a cutting chain.
  • the cutting-strand segments can be releasably connected to one another, for example by means of a chain lock, etc., and / or inseparably connected to one another.
  • the cutting strand as
  • Cutting band and / or cutting rope is formed.
  • the cutting strand segments are fixed directly to the cutting band and / or to the cutting rope.
  • the cutting-strand segments may in this case be spaced apart from one another and / or arranged in direct contact with one another on the cutting band and / or on the cutting rope.
  • Dipping the cutting elements are kept low in a workpiece to be machined.
  • the invention is based on a power-tool parting device, in particular a hand-held power tool separating device, with a cutting strand according to the invention.
  • the machine tool separating device comprises a guide unit to guide the cutting strand, wherein the guide unit and the cutting strand together form a closed system.
  • a "guide unit” is to be understood here as meaning, in particular, a unit which is intended to exert 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 the cutting device to move. Specify strand along the cutting direction.
  • the guide unit has at least one guide element, in particular a guide groove, through which the cutting strand is guided.
  • the cutting strand is preferably guided along an entire circumference of the guide unit by the guide unit by means of the guide element, in particular the guide groove.
  • the term "closed system” is intended to define a system comprising at least two components that retain functionality and / or functionality by interacting in a disassembled state of the system from a higher-level system such as a machine tool
  • the at least two components of the closed system are at least substantially non-detachably connected to each other by an operator.
  • At least substantially insoluble is to be understood here as meaning, in particular, a connection of at least two components which merely with the aid of separation tools, such as a saw, in particular a mechanical saw, etc., and / or chemical release agents, such as solvents, etc., are separable from each other. It can be advantageously realized an effective insert tool that is suitable for a wide range of workpiece machining.
  • the power-tool parting device comprises at least the guide unit, wherein the cutting-strand segment has at least one segment guide element arranged on the cutter-carrier element, which is intended to move the cutting-rod segment in a state of the cutting strand arranged on the guide unit, viewed in one The direction away from the guide unit to limit at least along at least substantially parallel to a cutting plane of the cutting element extending direction.
  • Each cutting strand segment of the cutting strand of the machine tool separating device particularly preferably has at least one segment guide element which is provided for movement of the respective cutting strand segment in a direction arranged in a guide unit in a direction away from the guide unit, at least along one at least Essentially parallel to a cutting plane of the cutting element extending
  • the guide unit has at least one segment counterpart corresponding to the segment guide element. element on.
  • the guide unit has at least one guide element, in particular a guide groove, through which the cutting strand is guided.
  • the cutting strand viewed in the cutting plane, guided along an entire circumference of the guide unit by the guide unit by means of the guide element, in particular the guide groove.
  • the invention is based on a machine tool having at least one coupling device for the positive and / or non-positive coupling with a machine tool separating device according to the invention.
  • the machine tool is preferably designed as a portable machine tool.
  • a "portable power tool” should be understood here to mean, in particular, a power tool, in particular a hand tool, which can be transported by an operator so that it can not be transported,
  • the portable power tool in particular has a mass which is less than 40 kg, preferably less than 10 kg and particularly preferably less than 5 kg.
  • the machine tool and the machine tool separating device preferably together form a machine tool system.
  • the power tool separating device according to the invention and / or the portable power tool according to the invention should / should not be limited to the application and embodiment described above
  • the inventive cutting strand segment, the cutting strand according to the invention, the machine tool separating device according to the invention and / or the portable power tool according to the invention can fulfill a function described herein which deviates from a number of individual elements, components and units mentioned herein exhibit. Drawing Further advantages emerge from the following description of the drawing.
  • FIG. 1 shows a portable power tool according to the invention with a machine tool separating device according to the invention in a schematic representation
  • FIG. 2 is a detailed view of the machine tool separating device according to the invention in a schematic representation
  • FIG. 3 shows a detailed view of a cutting strand segment according to the invention of a cutting strand according to the invention in a schematic representation
  • Fig. 4 is a detail view of an alternative invention
  • FIG. 5 shows a detailed view of a further, alternative cutting strand segment according to the invention in a schematic representation
  • Fig. 6 is a detailed view of another, alternative cutting strip segment according to the invention in a schematic representation
  • Fig. 7 is a detail view of an alternative invention
  • FIG. 1 shows a portable machine tool 36a with a machine tool separating device 14a, which together form a machine tool system.
  • the portable power tool 36a has a coupling device 38a for the positive and / or non-positive coupling with the machine tool separating device 14a.
  • the coupling device 38a can be embodied as a bayonet closure and / or as another coupling device that appears meaningful to a person skilled in the art.
  • the portable power tool 36a has a power tool housing 40a enclosing a drive unit 42a and a gear unit 44a of the portable power tool 36a.
  • the drive unit 42a and the gear unit 44a are operatively connected to one another in order to produce a drive torque which can be transmitted to the power tool parting device 14a in a manner already known to a person skilled in the art.
  • the gear unit 44a is formed as an angle gear.
  • the drive unit 42a is designed as an electric motor unit. However, it is also conceivable that the drive unit 42a and / or the gear unit 44a have another configuration that appears appropriate to a person skilled in the art.
  • the drive unit 42a is provided to drive a cutting strand 12a of the power-tool parting device 14a in at least one operating state with a cutting speed of less than 6 m / s.
  • the portable power tool 36a has at least one operating mode in which a drive of the cutting strand 12a in a guide unit 32a of the power tool cutting device 14 along a cutting direction 72a of a cutting element 18a of a cutting strand segment 10a of the cutting strand 12a with a cutting speed less than 6 m / s becomes.
  • FIG. 2 shows the power-tool parting device 14a in a state decoupled from the coupling device 38a of the portable power tool 36a.
  • the power-tool parting device 14a has the cutting strand 12a, which comprises at least one cutting-strand segment 10a.
  • the power-tool parting device 14a has the guide unit 32a, which forms a closed system together with the cutting strand 12a.
  • the guide unit 32a has at least one guide groove (not shown here in detail).
  • the cutting strand 12a is guided by means of the guide groove bounding edge regions of the guide unit 32a.
  • the guide unit 32a may have another element which appears expedient to a person skilled in the art for guiding the cutting strand 12a, for example an element designed as rib-like molding on the guide unit 32a, which engages in a recess on the cutting strand 12a.
  • the cutting strand 12a is circumferentially moved during operation along a circumference of the guide unit 32a in the guide groove.
  • the cutting strand segment 10a has, for connection to a further cutting strand segment 48a of the cutting strand 12a, at least one connecting element 46a, which is formed integrally with a cutting carrier element 16a of the cutting strand segment 10a (FIG. 3).
  • the cutting strand 12a comprises at least one connecting element 46a for connecting the cutting strand segment 10a and the further cutting strand segment 48a.
  • the connecting element 46a is bolt-shaped.
  • each cutting strand segment of the cutting strand 12a comprises at least one connecting element arranged on the respective cutting carrier element of the cutting strand segments and at least one on the respective one
  • Cutting carrier element of the cutting strand segments arranged connecting recess.
  • the cutting strand segments of the cutting strand 12a by means of an interaction of the connecting elements and the connecting recesses relative to each other pivotally mounted.
  • the connecting element 46a of the cutting strand segment 10a at least substantially flush with at least one outer surface 54a of the
  • the connecting element 46a viewed along a direction extending at least substantially perpendicular to the outer surface 54a, protrudes beyond the outer surface 54a or is recessed to the outer surface 54a.
  • the cutting strand segment 10a can be guided in a state arranged in the guide groove via the connecting element 46a to edge regions of the guide groove.
  • the cutting strand segment 10a has at least one on
  • Edge carrier element 16a arranged transverse securing element 22a, which is provided to the cutter support member 16a in an assembled state as far as possible against a transverse movement relative to the other
  • the cutting strand segment 10a has at least one embossed transverse securing element 22a.
  • the transverse securing element 22a is arranged on the connecting element 46a.
  • the transverse securing element 22a has at least one securing region 28a, which extends at least substantially parallel to a cutting plane of the cutting element 18a.
  • the securing region 28a extends at least substantially parallel to the outer surface 54a of the cutter support element 16a.
  • the transverse securing element 22a is embossed by a stamping device to the connecting element 46a of the cutting strand 12a after a coupling of at least the cutter carrier element 16a with the further cutter carrier element 26a of the cutting strand 12a.
  • the securing portion 28a is formed due to the stamping of the transverse securing member 22a.
  • the securing area 28a is provided by means of an interaction with a circular-ring-shaped counter-securing area (not shown here in detail) of the further cutter-carrier element 26a to prevent the Cutting support element 16a in an assembled state in at least one at least substantially at right angles to the outer surface 54a extending direction as far as possible against a transverse movement relative to the other
  • the cutting strand segment 10a likewise has an annular-ring-shaped counter-securing region 56a.
  • the counter-securing region 56a is arranged in the region of the connecting recess 50a on the cutter carrier element 16a.
  • the cutter support element 16a is connected by means of a connection of the connecting element 46a of the cutter carrier element 16a and a connecting recess of the further cutter carrier element 26a
  • each cutter carrier element of the cutting strand segments of the cutting strand 12a comprises at least one transverse securing element, which is arranged on the connecting element by means of embossing after coupling with a further cutter carrier element.
  • the cutting strand segment 10a further comprises at least one on
  • Cutting edge member 16a arranged segment guide element 34a, which is intended to movement of the cutting strand segment 10a in a arranged on the guide unit 32a state in a direction away from the guide unit 32a direction, at least along at least substantially parallel to the cutting plane of the cutting element 18a extending direction to limit (Figure 3).
  • the segment guide element 34a is formed by a transverse extension, which extends at least substantially perpendicular to the outer surface 54a of the cutter support element 16a.
  • the segment guide member 34a defines a longitudinal groove.
  • the segment guide element 34a is provided for limiting the movement with segment counter-guide elements 60a, 62a arranged on an inner surface of the guide unit 32a facing the cutter support element 16a the guide unit 32a ( Figure 2) to cooperate.
  • the segment counter-guide elements 60a, 62a are formed corresponding to the segment guide element 34a of the cutting-edge segment 10a.
  • Each of the cutting strand segments of the cutting strand 12a in this case comprises at least one segment guide element which is provided for movement of the cutting strand segments in a state arranged on the guide unit 32a, in a direction away from the guide unit 32a, at least along at least one substantially parallel to Limit cutting plane of the cutting element 18a extending direction.
  • the cutting-strand segment 10a has a 16a pressure-force transmission surface 64a arranged on the cutter carrier element (FIG. 3).
  • the pressure force transmission surface 64a is provided to support pressure forces which act on the cutting strand 12a during machining of a workpiece (not shown here in detail) by means of cooperation with a pressure force absorption region (not shown here in detail) of the guide unit 32a.
  • the pressure force receiving area of the guide unit 32a is in this case viewed along an at least substantially perpendicular to the cutting plane of the
  • Cutting elements 18a extending direction between two at least substantially parallel to each other extending outer surfaces of the guide unit
  • the cutter string segment 10a further includes a drive surface 66a disposed on the cutter support member 16a, which is intended to cooperate to drive the cutting string 12a with drive surfaces of a torque transmitting member 68a ( Figure 2) of the power tool separator 14a.
  • the drive surfaces of the torque transmission element 68a are formed here as tooth flanks.
  • the drive surface 66a of the cutter support member 14 is formed in this case corresponding to the drive surfaces of the torque transmission element 68a.
  • the tooth flanks of the torque transmission element 68a temporarily bear against the drive surface 66a in order to transmit drive forces.
  • each cutting strand segment of the cutting strand 12a comprises a drive surface.
  • the torque transmission element 68a is rotatably mounted in the guide unit 32a for driving the cutting strand 12a.
  • the torque transmitting element 68a is in a coupled state for driving the cutting strand 12a with a pinion (not shown here in detail) of the drive unit 42a and / or a gear (not shown here) and / or a toothed shaft (not shown here) coupled to the transmission unit 44a.
  • the torque transmission element 68a has a coupling recess 70a, which in a mounted state can be coupled to a drive element of the portable machine tool 36a.
  • the coupling recess 70a is arranged concentrically in the torque transmission element 68a.
  • the coupling recess 70a is provided, in a coupled state of the torque transmission element 68a and / or the machine tool separating device 14a with the pinion (not shown in detail here), the drive unit 42a and / or the gearwheel (not shown in detail here) and / or the toothed shaft (not shown here) of the gear unit 44a to be coupled.
  • the coupling recess 70a is formed as a hexagon socket.
  • the coupling recess 70a it is also conceivable for the coupling recess 70a to have another configuration which appears appropriate to a person skilled in the art.
  • the power-tool parting device 14a is decoupled from the torque-transmitting element 68a in an alternative embodiment (not illustrated here).
  • the pinion (not shown here in detail) of the drive unit 42a and / or the toothed wheel (not shown in detail here) and / or the toothed shaft (not shown here in detail) of the gear unit 44a would engage directly in the guide unit 32a and would be decoupled provided by an intermediate circuit of a arranged in the guide unit 32a torque transmitting element to a drive of the cutting strand 12a.
  • the cutting strand segment 10a at least the on
  • Cutting support element 16a arranged cutting element 18a.
  • Cutting element 18a is formed integrally with the cutter support element 16a.
  • the cutting element 18a is intended to allow a separation and / or removal of material particles of a workpiece to be machined (not shown here).
  • the cutting element 18a as In this case, the cutting element 18a extends at least substantially parallel to the outer surface 54a of the "scratcher" tooth
  • the cutting strand segment 10a is in this case by means of a punching device in one step punched in one piece from a strip material.
  • Each cutting strand segment of the cutting strand 12a comprises at least one cutting element.
  • the cutting element 18a can have a cutting layer comprising at least titanium carbide (not shown here in detail). The cutting layer is applied to the cutting element 18a by means of a CVD method.
  • the cutting layer alternatively or additionally comprises another material, such as titanium nitride, titanium carbonitride, aluminum oxide, titanium aluminum nitride, chromium nitride or zirconium carbonitride.
  • the cutting layer is applied by means of another method that appears appropriate to a person skilled in the art, for example by means of a PVD or PACVD method.
  • the cutting element 18a is formed particle-loaded. In this case, the cutting element 18a can be equipped with diamond particles, with hard metal particles or with other particles which appear to be appropriate to a person skilled in the art.
  • the cutting strand segment 10a has at least one on
  • Cutting support element 16a arranged cutting depth limiting element 20a to a limit of a maximum depth of cut of the cutting element 18a ( Figure 3).
  • the cutting strand segment 10a comprises at least the
  • Cutting support member 16a at least the cutting support element 16a arranged cutting element 18a and at least the on
  • Cutting support element 16a arranged cutting depth limiting element 20a to a limit of a maximum depth of cut of the cutting element 18a.
  • the cutting strand segment 10a has a maximum volume which is smaller than 20 mm 3 .
  • the cutting depth limiting element 20a limits a maximum cutting depth of the cutting element 18a to a value smaller than 0.5 mm.
  • the cutting depth limiting element 20a limits a maximum cutting depth of the cutting element 18a to a value smaller than 0.3 mm.
  • the maximum depth of cut of the cutting element 18a is defined by a distance between see an upper side 74a of the cutting depth limiting element 20a and a cutting edge 78a of the cutting element 18a, viewed along a direction extending in the cutting plane of the cutting element 18a at least substantially perpendicular to the cutting direction 72a of the cutting element 18a.
  • the cutting depth limiting element 20a is viewed along the
  • Cutting direction 72a of the cutting element 18a disposed behind the cutting element 18a on the cutter support member 16a.
  • a chip space 80a of the cutting strand segment 10a is formed.
  • the cutting depth limiting element 20a is formed integrally with the cutter support element 16a.
  • the Thomastie-fenbegrenzungselement 20a is formed in the region of the connecting recess 50a on the cutter support member 16a.
  • the cutting strand segments of the cutting strand 12a all each have a cutting depth limiting element. However, it is also conceivable that not every cutting strand segment of the
  • Cutting strand 12a has a Thomas198enbegrenzungselement and the
  • FIG. 4 shows a cutting strand segment 10a ', which is alternatively designed for the cutting strand segment 10a from FIG. 3.
  • the cutting strand segment 10a ' has an at least substantially analogous configuration to the cutting strand segment 10a from FIG.
  • the difference between the cutting strand segment 10a of Figure 3 and the cutting strand segment 10a ' consists in an embodiment of the cutting element 18a of the cutting strand segment 10a of Figure 3 and the The cutting element 18a 'of the cutting strand segment 10a' of Figure 4 has along a cutting direction 72a 'of the cutting element 18a' a varying entanglement relative to an outer surface 54a 'of a cutter support element 16a' of the cutting strand segment 10a '. on.
  • the cutting element 18a ' about two at least substantially perpendicular axes relative to the outer surface 54a' relative to the cutter support member 16a 'inclined on
  • the two at least substantially perpendicular axes here preferably extend at least substantially parallel to the outer surface 54a 'of the cutter carrier element 16a' and / or to the cutting plane of the cutting element 18a '.
  • FIGS. 1 to 3 To form the cutting strand 12a from FIGS. 1 to 3, a plurality of cutting strand segments 10a 'from FIG. 4 and a plurality of cutting strand segments 10a from FIG. 3 can be arranged one behind the other in a sequence that appears appropriate to a person skilled in the art.
  • FIG. 5 shows a cutting-strand segment 10b which is an alternative to the cutting-strand segment 10a from FIG.
  • the cutting strand segment 10b comprises at least one cutting support element 16b, at least one cutting element 18b arranged on the cutting support element 16b and at least one on
  • Cutting support element 16b arranged cutting depth limiting element 20b to limit a maximum depth of cut of the cutting element 18b.
  • the cutting element 18b extends at least substantially parallel to an outer surface 54b of the cutter support element 16b
  • the cutting strand segment 10b also comprises at least one connecting element 46b arranged on the cutter support element 16b
  • the longitudinal extension is hook-shaped, wherein the longitudinal extension is deviating from a rod-shaped extension, to which a circular form-locking element is formed and / or deviating from a semicircular one extension.
  • the connecting element 46b designed as a longitudinal extension has a transverse securing region 76b on one side. The transverse securing area 76b is provided for, by means of an interaction with at least one transverse securing element of a further cutter carrier element (not shown here in detail) connected to the cutter carrier element 16b
  • the transverse securing portion 76b is formed as a rib.
  • the transverse securing region 76b it is also conceivable for the transverse securing region 76b to have another design that appears appropriate to a person skilled in the art, such as a configuration as a groove, etc.
  • the transverse securing region 76b is arranged on a side of the connecting element 46b facing the cutting carrier element 16b in one piece , Further, the cross-securing portion 76b and the connecting member 46b, respectively, as seen along a cutting direction 72b of the cutting element 18b, are on a side of the cutting depth-limiting element 20b facing away from
  • Cutter support element 16b arranged. Furthermore, the cutting strand segment 10b has two on the cutter support element
  • transverse securing elements 22b, 24b which are intended to cooperate in a coupled state of the cutter support member 16b with the other cutter support member with a transverse securing portion of the other cutter support member.
  • the transverse securing elements 22b, 24b are in each case a connecting recess 50b of the
  • transverse securing elements 22b, 24b are formed integrally with the cutter support element 16b.
  • the transverse securing elements 22b, 24b are integrally formed in each case by means of a stamping process on the cutter support element 16b.
  • FIG. 6 shows a cutting strand segment 10b ', which is alternatively designed for the cutting strand segment 10b from FIG. 5.
  • the cutting strand segment 10b ' has a configuration which is at least substantially analogous to the cutting strand segment 10b from FIG.
  • the difference between the cutting strand segment 10b from FIG. 3 and the cutting strand segment 10b ' consists in an embodiment of the cutting element 18b of the cutting strand segment 10b from FIG. 5 and FIG
  • the cutting element 18b 'of the cutting strand segment 10b' of FIG. 6 has a changing entanglement relative to an outer surface 54b 'of a cutter support element 16b' of the cutting strand segment 10b 'along a cutting direction 72b' of the cutting element 18b '. on.
  • the cutting element 18b ' about two at least substantially perpendicular axes relative to the outer surface 54b' relative to the cutter support member 16b 'inclined on
  • FIG. 7 shows an alternative cutting strand 12c.
  • the cutting strand 12 comprises a plurality of cutting-edge segments 10c, 48c, 52c, which each have at least one cutting-carrier element 16c, at least one on
  • Cutting edge member 16c arranged cutting element 18c and at least one arranged on the cutter support member 16c Thomastiefenbegrenzungs- element 20c to limit a maximum depth of cut of the cutting element 18c include.
  • the cutting strand 12c has two types of cutting strand segments 10c, 48c, 52c.
  • the cutting strand 12c has driving-link cutting-strand segments and, on the other hand, cutting-edge cutting-edge segments which are arranged alternately one behind the other along a cutting direction 72c of the cutting elements 18c.
  • Cutting strand segments 10c, 48c, 52c, the cutting strand 12c comprises separately from the cutting strand segments 10c, 48c, 52c formed connecting elements 46c.
  • the connecting elements 46c are designed as connecting bolts or connecting rivets.
  • the connecting elements 46c are inserted into a connection of the cutting-strand segments 10c, 48c, 52c in connection recesses 50c of the cutting-strand segments 10c, 48c, 52c and by means of reshaping and / or welding of a holding region of the connecting elements 46c against falling out of the connection recess - secured 50c.
  • all cutting-strand segments 10c, 48c, 52c each have a cutting depth-limiting element 20c.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Shearing Machines (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un segment de ligne de coupe pour une ligne de coupe d'un dispositif de séparation de machine-outil, comportant au moins un élément support de lame (16a; 16a'; 16b; 16b'; 16c), comprenant sur l'élément support de lame (16a; 16a'; 16b; 16b'; 16c) au moins un élément de coupe (18a; 18a'; 18b; 18b'; 18c) et, disposé sur l'élément support de lame (16a; 16a'; 16b; 16b'; 16c), un élément de limitation de la profondeur de coupe (20a; 20a'; 20b; 20b'; 20c) pour limiter la profondeur de coupe maximale de l'élément de coupe (18a; 18a'; 18b; 18b'; 18c). Selon l'invention, l'élément de limitation de la profondeur de coupe (20a; 20a'; b; 20b'; 20c) limite une profondeur de coupe maximale de l'élément de coupe (18a; 18a'; 18b; 8b'; 18c) à une valeur inférieure à 0,5 mm.
EP13739704.8A 2012-08-31 2013-07-22 Segment de ligne de coupe Active EP2890534B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012215460.4A DE102012215460A1 (de) 2012-08-31 2012-08-31 Schneidstrangsegment
PCT/EP2013/065388 WO2014032857A1 (fr) 2012-08-31 2013-07-22 Segment de ligne de coupe

Publications (2)

Publication Number Publication Date
EP2890534A1 true EP2890534A1 (fr) 2015-07-08
EP2890534B1 EP2890534B1 (fr) 2021-10-20

Family

ID=48832919

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13739704.8A Active EP2890534B1 (fr) 2012-08-31 2013-07-22 Segment de ligne de coupe

Country Status (5)

Country Link
US (1) US10384367B2 (fr)
EP (1) EP2890534B1 (fr)
CN (1) CN104602876B (fr)
DE (1) DE102012215460A1 (fr)
WO (1) WO2014032857A1 (fr)

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Also Published As

Publication number Publication date
CN104602876B (zh) 2018-04-27
CN104602876A (zh) 2015-05-06
US10384367B2 (en) 2019-08-20
US20150231793A1 (en) 2015-08-20
WO2014032857A1 (fr) 2014-03-06
DE102012215460A1 (de) 2014-03-06
EP2890534B1 (fr) 2021-10-20

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