Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C5/00—Milling-cutters
  • B23C5/16—Milling-cutters characterised by physical features other than shape
  • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
  • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
  • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
  • B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
  • B23C5/2213—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts  having a special shape
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23B—TURNING; BORING
  • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
  • B23B27/10—Cutting tools with special provision for cooling
  • B23B27/12—Cutting tools with special provision for cooling with a continuously-rotated circular cutting edge; Holders therefor
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/04—Overall shape
  • B23C2200/045—Round
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/24—Cross section of the cutting edge
  • B23C2200/243—Cross section of the cutting edge bevelled or chamfered
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/28—Angles
  • B23C2200/281—Negative rake angles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/28—Angles
  • B23C2200/283—Negative cutting angles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/32—Chip breaking or chip evacuation
  • B23C2200/326—Chip breaking or chip evacuation by chip-breaking grooves
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/50—Cutting inserts
  • B23C2210/506—Cutting inserts mounted so as to be able to rotate freely
• • 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
  • Y10T407/00—Cutters, for shaping
  • Y10T407/19—Rotary cutting tool
  • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
  • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
  • Y10T407/1936—Apertured tool
• • 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
  • Y10T407/00—Cutters, for shaping
  • Y10T407/24—Cutters, for shaping with chip breaker, guide or deflector

Definitions

• the invention relates to an indexable insert for a milling tool for machining of workpieces, which is mounted radially on a milling head on a rotationally symmetrical Y-axis on the milling head.
• Milling with rotating blades is a method known for years, but which has prevailed only to a small extent in manufacturing.
• a tool is used whose active element consists of a round, rotatably mounted cutting disc, which performs a kinematically related automatic rotational movement during the machining process by the cutting process and the inclination of the cutting disc axis to the cutting direction.
• active element consists of a round, rotatably mounted cutting disc
• a corresponding cutter is known for example from DD 118 543 here.
• a fixed cutting edge is provided on the milling head in addition to a rotating hub, in order to achieve a special sectional image in this way.
• Another embodiment of the prior art is also known from US 2,885,766, in which the cutting head rotatably mounted indexable inserts are provided which are rotatably mounted on rotationally symmetrical axes on the milling head.
• the rotatably mounted indexable inserts are in this known from the prior art milling head in U-shaped nests, so that in particular a two-sided integration of the axes is given in the milling head.
• a rotatable blade which has on its rear side via an integrally formed shaft which is rotatably mounted in the carrier material of the milling head in a blind hole.
• An equivalent solution is also known from DE 10 2005 051 695, in which in particular the indexable insert is fastened to a carrier element and wherein the carrier element is rotatably mounted in the tool.
• the support member coaxial with the Y-axis to a stub shaft, which is rotatably guided in a blind hole in the tool.
• the support element can be actively formed rotationally driven, so that due to the rotational movement of the milling tool, here provided via a milling head gear, the mounted on the support insert is driven ,
• a corresponding embodiment is also described in CH 480 120.
• Milling tools that are equipped with rotatably mounted cutting discs, it is considered disadvantageous that build the known embodiments with respect to their rotatably mounted indexable inserts very expensive, which is due to the elaborately designed storage for the indexable insert.
• all known in the prior art solutions own that in particular the rotatably mounted indexable insert can be changed that several interventions must be made on the milling head to solve the indexable insert on the one hand from the milling head or the indexable insert after loosening the Carrier agent is still to be solved by the carrier itself.
• indexable inserts must be kept, which are particularly adapted to the milling head.
• the invention thus raises the problem of providing an indexable insert for a milling head for machining workpieces, which is mounted radially rotatably, wherein its configuration for supporting the cutting much simpler fails and in particular the change process of the cutting plate designed much easier ,
• the advantages achieved by the invention are in particular that due to a pin solution in conjunction with the enclosure of the rotating indexable insert through the carrier material of the milling head in a cage rotating indexable insert is created, which has the sufficient freedom from movement or rotation, on the one hand during the drilling process penetrate into the material and on the other hand can take off a corresponding chip during milling.
• the simple integration of the indexable insert is created here only by the shape of the cutter head in conjunction with the bearing pin. This ensures that the rotating disk has sufficient freedom of rotation, in particular during chip removal, without the risk of the blades being able to lift themselves off their bearings.
• the insert is freely rotatably mounted under a tolerance game at the free end of a milling head under clamping seat releasably mounted bearing pin and wherein the freely rotatably mounted insert against a self-release from the bearing pin of the material of the milling head on the one hand from the back surface and on the other hand From the front is partially bordered or integrated. Due to the releasably mounted bearing pin, which forms the axis of rotation of the indexable insert, it is ensured that by simply loosening the bearing pin, the indexable insert in her PatXML 4/13 P0944
• the bearing pin is arranged in a through bore on the milling head. It goes without saying that the bearing pin can be easily pushed from one side, so that in particular it releases the indexable insert in its seat and it can be removed from the net.
• Indexable insert has this a cylindrical bore to form a sliding bearing on the bearing pin.
• the indexable insert has on its front side an annular area which comprises a smooth disk surface for forming a sliding ring, which is supported on the enclosing surrounding area of the milling head under load.
• the indexable insert according to a first embodiment, a framed cutting edge.
• the indexable insert can also have, according to a second embodiment, a cutting edge steppedly offset from the disk surface.
• the remote cutting edge can also be provided with a chip recess.
• the indexable insert used in the milling head lies in the milling head such that the cutting edge of the indexable insert is located in a recessed by the enclosed or surrounding material of the milling head area.
• the bordered or surrounding material of the milling head interacts only with the disk surface.
• indexable insert through the support material of the milling head, a rotating insert in a cage is created, which has sufficient freedom of movement or rotation to penetrate the one hand during the drilling process in the material and the other hand when milling a corresponding chip unhindered without caking, be it on the substrate or at the Wendechtplatte itself, can take off.
• the simple integration of the indexable insert is in this case only by the shape of the cutter head in connection PatXML 5/13 P0944
• the bearing pin on its other end a threaded portion with which it is fixed in the material of the milling head.
• the bearing pin is designed such that it has a front cylindrical portion for pivotal mounting of the indexable insert and in its central region a conical region for fixing in the carrier material of the milling head. At the conical region then adjoins arranged for clamping in the carrier material threaded portion, so that the pin can be introduced under a strain in the carrier head, and thus assumes a stable for the free pivotal mounting of the indexable insert bearing axis.
• the tensioning of the bearing pin, the conical training accordingly cooperates with a taper in the Fräskopfmaterial.
• Indexable insert has this a circumferential groove into which engages a arranged on the milling head race or pin.
• the circumferential groove is arranged radially on the indexable insert.
• the circumferential groove is arranged on the rear support or contact surface of the indexable insert.
• Figure 1 shows an embodiment of a milling tool according to the
• Figure 1.2 shows a further detail e with graded cutting edge according to
• FIG. 3 shows a further detail view e with chamfered cutting edge according to FIG.
• FIG. 2 shows a first embodiment of a FIG
• Figure 3 shows a second embodiment of an indexable insert also in different views A to D
• Figure 4 shows a third embodiment of an indexable insert also in different views A to D
• Figure 5 is a sectional side view of the invention
• FIG. 7 shows a further side view of the invention
• Figure 8 is a single view of the bearing pin in side and front view;
• Figure 9 is an exposed view of the bearing pin with cutting plate according to the figure 5 in a first embodiment;
• Figure 10 shows a further exposed representation of the bearing pin with
• FIG. 11 is a single view in section of a PatXML 7/13 P0944
• Figure 12 shows another embodiment of an indexable insert, also in a sectional view.
• FIG. 1 shows an embodiment of a basic form
• Indexable insert 1 for a milling tool 2, for the machining of workpieces is mounted rotatably radially on a milling head 3 on a rotationally symmetrical Y-axis 4 on the milling head 3.
• 1 shows in this case the milling tool 2 with the indexable insert 1 in five different views, FIG. 1a showing a side view of the milling tool 2 with indexable insert 1, FIG. 1b a perspective top view, FIG. 1c a view of the milling head 3 with integrated indexable insert 1
• FIG. 1 d shows a sectional detailed view of the milling head 3 with the indexable insert 1 and FIG. 1 e, which shows an exposed representation of the integration of the indexable insert 1 on the milling head 3.
• the indexable insert 1 is freely rotatably mounted under a tolerance clearance 5 at the free end 6 of a milling pin 3 releasably secured to the milling head 3 bearing pin 7.
• the freely rotatably mounted indexable insert 1 is bordered against a self-release from the bearing pin 7 of the material 8 of the milling head 3 on the one hand from the back 9 forth area and on the other hand from the front side 10 ago.
• the indexable insert 1 has a cylindrical bore 11 to form a sliding bearing on the bearing pin 7.
• the indexable insert 1 in this case has on its front side 10 an annular region 12, which comprises a smooth disk surface 13 for forming a sliding ring, which is supported on the enclosing, surrounding material 8 of the milling head 3 under load. This can clearly be seen in the detail view of FIG. 1e, wherein the material 8 of the milling head 3 extends as far as the annular region 12 of the indexable insert 1.
• the indexable insert 1 with its cutting edge 14 under a PatXML 8/13 P0944
• Tolerance game 5 is rotatably mounted on the bearing pin 7 is surrounded by a free space 15 in the material 8, so that is applied for themselves attaching material on the cutting edge 14 of the sufficient space, so that the indexable insert 1 has sufficient freedom of rotation.
• indexable insert 1 which has a chamfered cutting edge 16.
• FIG. 3 a further development of the indexable insert 1 is shown, wherein the latter has a cutting edge 16 which is stepped to the disk surface 13.
• FIG 3 A further development of the indexable insert 1 shown in FIG 3 is shown in Figure 4, where the indexable insert 1 has a remote to the disc surface 13 cutting edge 16 with a chip recess 17.
• the cutting edge 16 of the indexable insert 1 is located in a recessed by the enclosed or surrounding material 8 of the milling head 3 area.
• the enclosed or surrounding material 8 of the milling head 3 acts together only with the disk surface 13.
• FIG. 5 shows an embodiment of a device according to the invention
• Milling tool 1.1 in the sectional side view.
• the milling tool 1.1 is intended for machining of workpieces, wherein the milling head 2.1 of the milling tool 1.1 at least one radially arranged indexable insert 3.1 is provided which is rotatably mounted on a rotationally symmetrical Y-axis 4.1 milling head 2.1.
• the Z-axis forms the axis of rotation 5.1 of the milling tool 1.1, wherein the X-axis occupies the cutting horizon designated by the reference numeral 6.1.
• the indexable insert 3.1 is freely rotatably mounted on the free end 7.1 of a milling head 2.1 under tension seat releasably mounted bearing pin 8.1 under a tolerance match.
• the freely rotatably mounted insert 3.1 is in this case secured against self-release by the bearing pin 8.1, wherein it is bordered by the material of the milling head 2.1 on the one hand from the back 9.1 forth area, and on the other hand from the front side 10.1 ago partially integrated. This can be seen in particular once from the view of Figure 5, wherein it is clear that a portion of the front side 10.1 of the indexable insert 3.1 is covered by the material of the milling head 2.1.
• Indexable insert 3.1 is held as in a forced cage, this being determined, once by the free end 7.1 of the bearing pin 8.1, which engages in the central bore 11.1 of the Wendescheidplatte 2.1, as well as by the milling material certain shape, the rotatably mounted indexable insert 3.1 of the Front 10.1 overlaps, in conjunction with the rear attachment.
• the bearing pin 8.1 at its other end 13.1 a threaded portion 14.1, with which it is set in the material of the milling head 2.1.
• the bearing pin 8.1 has a front cylindrical area 15.1 for pivotally mounting the indexable insert 3.1, wherein it has a conically shaped area in its central area 16.1 for fixing in the carrier material of the milling head 2.1.
• the conical region is then followed by the threaded region 14.1 of the bearing pin 8.1, which is intended for clamping in the carrier material.
• an internal hexagon 18.1, on which a tool can be attached, is arranged coaxially to the shaft axis 17.1 of the bearing pin 8.1.
• the freely rotatably mounted indexable insert 3.1 has a circumferential groove 19.1, in which a arranged on the milling head 2.1 race 20.1 or pin 21.1 engages.
• the circumferential groove 19.1 can be arranged radially on the indexable insert 3.1, as shown in Figures 9 and 12.
• the indexable insert 3.1 is now used without the bearing pin 8.1 in the form-fitting connections of race 20.1 or pin 21.1, so that the indexable insert 3.1 either rests on the race 20.1 in the front or rear surface, and wherein according to the other embodiment the indexable insert 3.1 engages with its circumferential groove 19.1 in the pin 21.1.
• a predetermined adjustment of the insert 3.1 is given in the cage.
• the bearing pin 8.1 is now used, this self-tightening tightening in the carrier material of the milling head 2.1 and thus provides a rigid axis of rotation 12.1 for the indexable insert 3.1.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Milling Processes (AREA)

Applications Claiming Priority (3)

Publications (1)

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ID=40886933

Family Applications (1)

Country Status (10)

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Family Cites Families (19)

• 2009
  • 2009-03-17 CA CA2718610A patent/CA2718610A1/en not_active Abandoned
  • 2009-03-17 WO PCT/EP2009/053154 patent/WO2009115527A2/de active Application Filing
  • 2009-03-17 US US12/933,273 patent/US20110013996A1/en not_active Abandoned
  • 2009-03-17 JP JP2011500201A patent/JP2011520623A/ja active Pending
  • 2009-03-17 RU RU2010142369/02A patent/RU2010142369A/ru unknown
  • 2009-03-17 EP EP09722414A patent/EP2268440A2/de not_active Ceased
  • 2009-03-17 MX MX2010010048A patent/MX2010010048A/es not_active Application Discontinuation
  • 2009-03-17 BR BRPI0908739-7A patent/BRPI0908739A2/pt not_active IP Right Cessation
  • 2009-03-17 KR KR1020107023240A patent/KR20110004853A/ko not_active Application Discontinuation
  • 2009-03-17 CN CN2009801096672A patent/CN101977717A/zh active Pending

Non-Patent Citations (1)

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