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WO2012116835A1 - Dispositif de séparation pour machine-outil - Google Patents

Dispositif de séparation pour machine-outil Download PDF

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Publication number
WO2012116835A1
WO2012116835A1 PCT/EP2012/000940 EP2012000940W WO2012116835A1 WO 2012116835 A1 WO2012116835 A1 WO 2012116835A1 EP 2012000940 W EP2012000940 W EP 2012000940W WO 2012116835 A1 WO2012116835 A1 WO 2012116835A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
machine tool
separating device
guide unit
cutting strand
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.)
Ceased
Application number
PCT/EP2012/000940
Other languages
German (de)
English (en)
Inventor
Rudolf Fuchs
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 WO2012116835A1 publication Critical patent/WO2012116835A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B27B17/02—Chain saws equipped with guide bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws
    • B23D57/023—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws hand-held or hand-operated

Definitions

  • Machine tool separating devices which comprise a cutting strand and a guide unit, which form a closed system.
  • the invention is based on a power-tool parting device, in particular a hand-held power tool parting device, with at least one cutting strand and with at least one guide unit, which form a closed system. It is proposed that the guide unit is designed as a sword.
  • a "cutting strand” is to be understood here as meaning, in particular, a unit which is intended to locally neutralize atomic cohesion of a workpiece to be machined, in particular by means of mechanical separation and / or by means of mechanical removal of material particles of the workpiece
  • a cutting strand is provided for separating the workpiece into at least two physically separate parts and / or at least partially separating and / or removing material particles of the workpiece starting from a surface of the workpiece is provided, a forced force at least along one
  • the guide unit preferably has at least one guide element, in particular a guide groove through which the cutting strand is guided
  • cutting plane should in particular define a plane in which the cutting strand in at least one operating state along a circumference of the guide unit in at least two mutually oppositely directed cutting directions is moved relative to the guide unit.
  • the cutting plane is aligned at least substantially transversely to a machined workpiece surface when machining a workpiece.
  • the term "at least essentially transversal" is to be understood here as meaning, in particular, an alignment of an plane and / or a direction relative to a further plane and / or a further direction, which preferably depends on a parallel orientation of the plane and / or the direction relative to
  • the cutting plane is aligned at least substantially parallel to a machined workpiece surface when machining a workpiece, in particular when the cutting strand is designed as an abrasive, etc.
  • an orientation of a direction relative to a reference direction in particular in a plane, is to be understood here, the direction relative to the reference direction having a deviation, in particular less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °
  • a "cutting direction” is to be understood here as meaning, in particular, a direction along which the cutting strand is used to produce a cutting gap and / or for separating and / or removing material particles of a workpiece to be machined in at least one operating state as a result of a drive force and / or a drive torque,
  • the cutting strand is preferably moved in an operating state along the cutting direction relative to the guide unit.
  • closed system is intended here to define, in particular, a system which comprises at least two components which, by means of a cooperation, kens maintained in a disassembled state of the system by a system superordinate system, such as a power tool, a functionality and / or are permanently connected to each other in the disassembled state.
  • a system superordinate system such as a power tool
  • the at least two components of the closed system are at least substantially inseparably connected with one another 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 release agents, such as solvents
  • word is intended here to define in particular a geometric shape which, viewed in the cutting plane, has a self-contained outer contour which has at least two straight lines running parallel to one another and at least two respectively facing ends of the straight line interconnecting connecting sections, in particular circular arches.
  • the guide unit has a geometric shape, which, viewed in the cutting plane, composed of a rectangle and at least two arranged on opposite sides of the rectangle circular sectors.
  • Cutting strand can be achieved by means of the guide unit. Furthermore, it is advantageously possible to produce a cutting gap which, when the cutting strand and the guide unit are immersed perpendicularly to a surface of a workpiece to be machined, begins at a time when the parallel lines of the outer contour of the guide unit are immersed in the workpiece Viewing cutting plane perpendicular to the parallel straight lines, at least substantially constant dimension. Furthermore, it is proposed that the guide unit, viewed in a cutting plane of the cutting strand, has at least two convex ends.
  • convexly formed is to be understood here as meaning, in particular, a geometric shape of the connecting sections of the outer contour of the guide unit, which is designed to bulge outwardly from the guide unit the cutting plane running side surface of the guide unit is arranged. It can be achieved structurally simple deflection of the cutting strand during movement of the cutting strand along a circumference of the guide unit.
  • the guide unit at the connecting portions in each case a rotatably mounted deflecting element, such as a roller, a gear wheel, etc., has.
  • the cutting strand can thus advantageously be deflected by means of the rotatably mounted deflecting elements during a movement along a circumference of the guide unit.
  • the cutting strand comprises at least two interconnected cutter support elements which are interconnected by means of at least one connecting element of the cutting strand, which terminates at least substantially flush with at least one outer surface of one of the at least two cutter support elements.
  • a "cutter support element” is to be understood here as meaning, in particular, an element to which at least one cutting element is fixed for separating and / or removing material particles of a workpiece to be machined to connect at least two components positively and / or non-positively with each other, in particular to connect to each other in a movable manner to transmit a driving force and / or a drive torque.
  • the connecting element is bolt-shaped.
  • the connecting element is formed integrally with a cutter support element.
  • one-piece should be understood here in particular at least materially connected, for example, by a welding process, an adhesive process, Anspritzfrac and / or another, a person skilled in the appear reasonable process, and / or advantageously understood in one piece, such as by a production from a casting and / or by a production in a one-component or multi-component injection molding process and advantageously from a single blank
  • the cutter carrier elements each have two connecting recesses into each of which a connection element is insertable.
  • the term "at least substantially flush” is to be understood here in particular as an arrangement of the connecting element in an assembled state, wherein the connecting element, in an assembled state, viewed along a longitudinal axis of the connecting element, extends within the at least one connecting recess receiving the connecting element and maximally extends to an outer surface of the cutter support element, which has the connecting recess, It can be advantageously achieved a compact design of the machine tool cutting device.
  • the connecting element is guided at least partially by means of the guide unit.
  • the connecting element is in this case preferably arranged in a mounted state in a guide groove of the guide unit. It can be structurally simple a backup of the connecting element in the connecting recess at a compound of the cutter support elements can be achieved.
  • the cutting strand has cutting elements which are formed integrally with the cutter support elements.
  • the cutting elements and the Schneidenlieelmente are hereby preferably by means of an injection molding process, such as by means of an MIM and / or a CIM process prepared.
  • the cutting elements are formed together with the cutter support elements made of hard metal and / or ceramic.
  • the cutting elements are joined together by means of a welding process and / or a soldering process.
  • the power-tool parting device has a torque-transmitting element which is at least partially mounted in the guide unit, in particular movably mounted.
  • the torque transmission element has a concentric recess into which a pinion of a drive unit of a portable power tool and / or a gear and / or a toothed shaft of a gear unit of the portable tool machine in an assembled state can intervene.
  • the recess is in this case preferably formed by a hexagon socket.
  • the recess has another, to a professional appear appropriate design.
  • the cutting strand is endless.
  • the term "endless" is to be understood here as meaning, in particular, a course of the cutting strand which is self-contained in at least one operating state
  • the cutter carrier elements can be releasably connected to one another, for example by means of a chain lock, etc.
  • the cutting strand it is also conceivable for the cutting strand to be designed as a cutting band and / or cutting cable
  • the cutting carrier elements are fixed directly on the cutting band and / or on the cutting rope and can be driven in a circumferential and / or oscillating manner along a circumference of the guide unit be arranged on each other and / or in direct contact with each other on the cutting band and / or on the cutting cable. It can be advantageously achieved an engagement of all cutting elements of the cutting strand during a machining of a workpiece. Furthermore, it is structurally simple to realize an inventive machine tool separating device with a circumferential cutting strand.
  • the guide unit preferably has a cross-section, changing along at least one subregion of the guide unit, in a direction at least substantially perpendicular to a cutting plane of the cutting strand, viewed along a cutting direction of the cutting strand.
  • the expression "Substantially perpendicular" should in this case in particular define an orientation of a direction relative to a reference direction, the direction and the reference direction, particularly when viewed in a plane, including an angle of 90 ° and the angle being a maximum deviation of, in particular, less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
  • cross-section should in this case in particular define a dimension, such as a length of a route, etc., and / or a surface area of a component, in particular viewed in a section through the component perpendicular to the cutting plane be achieved.
  • the invention is further based on a portable power tool with a coupling device for positive and / or non-positive coupling with a machine tool separating device according to the invention.
  • a "portable power tool” is to be understood here in particular as meaning a power tool, in particular a power tool, which can be transported by an operator so that it can not be transported Particularly preferably less than 5 kg, the machine tool separating device according to the invention and the portable machine tool according to the invention form a machine tool system, a high operating comfort for an operator, in particular during a tool change, can advantageously be achieved ,
  • the machine tool separating device according to the invention and / or the portable power tool according to the invention should not be limited to the application and embodiment described above.
  • the machine tool separating device according to the invention and / or the portable power tool according to the invention may have a number deviating from a number of individual elements, components and units specified herein for fulfilling a mode of operation described herein.
  • 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 is a sectional view along the line III-III of Figure 2 of the machine tool separating device according to the invention in a schematic representation
  • FIG. 4 is a detailed view of cutter support elements of the power tool cutting device according to the invention in a schematic representation
  • FIG. 5 is a detailed view of an arrangement of the cutter support elements in a guide unit of the machine tool separating device according to the invention in a schematic representation
  • FIG. 6 shows an alternative embodiment of a machine tool separating device according to the invention in a schematic representation.
  • FIG. 1 shows a portable machine tool 40a with a machine tool separating device 10a, which together form a machine tool system.
  • the portable machine tool 40a has a coupling device 42a for the positive and / or non-positive coupling with the machine tool separating device 10a.
  • the coupling device 42a 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 40a has a power tool housing 44a enclosing a drive unit 46a and a gear unit 48a of the portable power tool 40a.
  • the drive unit 46a and the gear unit 48a are operatively connected together in a manner already known to a person skilled in the art in order to generate a drive torque that can be transmitted to the power-tool parting device 10a.
  • the transmission unit 48a is designed as an angle gear.
  • the drive unit 46a is designed as an electric motor unit. However, it is also conceivable for the drive unit 46a and / or the gear unit 48a to have another configuration that appears appropriate to a person skilled in the art.
  • FIG. 2 shows the power-tool parting device 10a in a state decoupled from the coupling device 42a of the portable power tool 40a.
  • the machine tool separating device 10a has a cutting strand 12a and a guide unit 14a, which form a closed system.
  • the guide unit 14a is designed as a sword 16a.
  • the guide unit 14a viewed in a cutting plane of the cutting strand 12a, has at least two convex ends 18a, 20a.
  • the convex ends 18a, 20a of the guide unit 14a are arranged on two opposite sides of the guide unit 14a.
  • the cutting strand 12a is guided by means of the guide unit 14a.
  • the guide unit 14a has at least one guide element 50a (FIGS.
  • the guide element 50a is designed as a guide groove 52a (FIGS. 3 and 5), which are formed in a cutting plane of the cutting strand 12a. extends long of an entire circumference of the guide unit 14a. In this case, the cutting strand 12a is guided by means of the guide groove 52a delimiting edge regions of the guide unit 1a.
  • the guide element 50a is formed in a different manner that appears appropriate to a person skilled in the art, such as, for example, as a rib-like molding on the guide unit 14a, which engages in a recess on the cutting strand 12a.
  • the cutting strand 12a viewed in a plane perpendicular to the cutting plane, is surrounded on three sides by the edge regions bounding the guide groove 52a.
  • the cutting strand 12a is circumferentially moved in the guide groove 52a relative to the guide unit 14a during operation.
  • the cutting strand 12a includes a plurality of interconnected cutter support elements 22a, 24a, each interconnected by at least one connecting element 26a, 28a of the cutting strand 12a, at least substantially flush with at least one of two outer surfaces 54a, 56a of the interconnected cutter support elements 22a, 24a completes ( Figures 4 and 5).
  • the outer surfaces 54a, 56a extend in a state arranged in the guide groove 52a of the cutting strand 12a at least substantially parallel to the cutting plane.
  • a person skilled in the art will select a suitable number of cutter carrier elements 22a, 24a for the cutting strand 12a.
  • the cutter support elements 22a, 24a are each formed integrally with one of the connecting elements 26a, 28a.
  • the cutter carrier elements 22a, 24a each have a connecting recess 58a, 60a (only connecting recess 58a of the cutter carrier element 22a in FIG. 4) for receiving one of the connecting elements 26a, 28a of a further cutter carrier element 24a connected to the cutter carrier element 22a.
  • the connecting elements 26a, 28a are guided by means of the guide unit 14a (FIG. 5).
  • the connecting elements 26a, 28a are arranged in an assembled state of the cutting strand 12a in the guide groove 52a.
  • the connecting elements 26a, 28a can, viewed in a plane perpendicular to the cutting plane, be supported on two side walls 62a, 64a of the guide groove 52a.
  • the side walls 62a, 64a of the guide groove 52a viewed in the cutting plane, extend leading from the guide unit 14a perpendicular to a cutting direction 36a of the cutting strand 12a to the outside.
  • the cutting strand 12a has a multiplicity of cutting elements 30a, 32a.
  • a number of the cutting elements 30a, 32a is dependent on one
  • Number of cutter support elements 22a, 24a A person skilled in the art will select a suitable number of cutting elements 30a, 32a depending on the number of cutter carrier elements 22a, 24a.
  • the cutting elements 30a, 32a are each formed integrally with one of the cutter support elements 22a, 24a. Furthermore, the cutting elements 30a, 32a extend in the cutting plane over the
  • the cutting elements 30a, 32a may be formed, for example, as a full chisel, semi-chisel or other forms of cutting that appear meaningful to a person skilled in the art, which are intended to enable a separation and / or removal of material particles of a workpiece to be machined.
  • the cutting strand 12a is endless. Thus, the cutting strand 12a is formed as a cutting chain.
  • the blade carrier elements 22a, 24a are in this case designed as chain links, which are connected to one another by means of the bolt-shaped connecting elements 26a, 28a.
  • the power-tool parting device 10a has a torque-transmitting element 34a which can be connected to the gear unit 48a and / or the drive unit 46a to transmit forces and / or torques to the cutting strand 12a.
  • the torque transmission element 34a has a recess 66a, in which a pinion of the drive unit 46a and / or a gear and / or a toothed shaft of the gear unit 48a engages in an assembled state.
  • the recess 66a is arranged concentrically in the torque transmission element 34a.
  • the torque transmitting member 34a is formed as a gear.
  • the cutter support elements 22a, 24a have drive recesses 68a, 80a (FIG.
  • the torque transmitting member 34a is at least partially supported in the guide unit 14a.
  • the torque transmission element 34a along an ner direction perpendicular to the cutting plane, at least partially disposed between two outer walls 74a, 76a of the guide unit 14a ( Figure 3).
  • FIG. 6 shows an alternative exemplary embodiment.
  • Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, the reference numerals of the embodiments, the letters a and b are added. The following description is essentially limited to the differences from the first exemplary embodiment in FIGS. 1 to 5, wherein reference can be made to the description of the first exemplary embodiment in FIGS. 1 to 5 with regard to components, features and functions remaining the same.
  • FIG. 6 shows an alternative power-tool parting device 10b in a state decoupled from a coupling device of a portable power tool (not shown here).
  • the portable power tool and the coupling device have an analogous construction to the embodiment described in FIGS. 1 to 5.
  • the machine tool separating device 10b has a cutting strand 12b and a guide unit 14b.
  • the guide unit 14b has, viewed in a cutting direction 36b of the cutting strand 2b, at least in a partial region of the guide unit 14b changing cross section in a direction 38b at least substantially perpendicular to a cutting plane of the cutting strand 12b.
  • the guide unit 14b has a taper in a transition region 78b, viewed along the cutting direction 36b.
  • the guide unit 14b has a sudden cross-sectional change.

Landscapes

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

Abstract

L'invention concerne un dispositif de séparation pour machine-outil, en particulier un dispositif de séparation pour machine-outil à main, ledit dispositif comprenant au moins un brin de coupe (12a; 12b) et au moins une unité de guidage (14a; 14b) qui forment un système fermé. L'invention se caractérise en ce que l'unité de guidage (14a; 14b) est conçue sous forme de lame (16a, 16b).
PCT/EP2012/000940 2011-03-03 2012-03-02 Dispositif de séparation pour machine-outil Ceased WO2012116835A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011005007.8 2011-03-03
DE201110005007 DE102011005007A1 (de) 2011-03-03 2011-03-03 Werkzeugmaschinentrennvorrichtung

Publications (1)

Publication Number Publication Date
WO2012116835A1 true WO2012116835A1 (fr) 2012-09-07

Family

ID=46001106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/000940 Ceased WO2012116835A1 (fr) 2011-03-03 2012-03-02 Dispositif de séparation pour machine-outil

Country Status (2)

Country Link
DE (1) DE102011005007A1 (fr)
WO (1) WO2012116835A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012211091A1 (de) * 2012-06-28 2014-01-02 Robert Bosch Gmbh Werkzeugmaschinentrennvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
US4316327A (en) * 1979-02-26 1982-02-23 Omark Industries, Inc. Chain saw
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
DE4219956A1 (de) * 1992-06-18 1993-12-23 Stihl Maschf Andreas Schneideinrichtung für eine Motorkettensäge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT384389B (de) * 1986-04-24 1987-11-10 Scholz Karl Kettensaege
US20040049925A1 (en) * 2002-09-12 2004-03-18 Electrolux Home Products, Inc. Pole pruner
DE10258605A1 (de) * 2002-12-16 2004-07-08 Robert Bosch Gmbh Bohrwerkzeug mit abrasiven Schneidelementen und eine dieses antreibende Bohrmaschine
DE102006062001B4 (de) * 2006-09-18 2017-08-24 Robert Bosch Gmbh Handwerkzeugmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992660A (en) * 1955-08-22 1961-07-18 Mcculloch Corp Saw chain and bar unit
US4316327A (en) * 1979-02-26 1982-02-23 Omark Industries, Inc. Chain saw
US4382334A (en) * 1981-07-01 1983-05-10 Omark Industries, Inc. Chain saw device
DE4219956A1 (de) * 1992-06-18 1993-12-23 Stihl Maschf Andreas Schneideinrichtung für eine Motorkettensäge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11311952B2 (en) 2018-01-31 2022-04-26 Milwaukee Electric Tool Corporation Reciprocating saw

Also Published As

Publication number Publication date
DE102011005007A1 (de) 2012-09-06

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