Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C5/00—Milling-cutters
  • B23C5/02—Milling-cutters characterised by the shape of the cutter
  • B23C5/04—Plain cutters, i.e. having essentially a cylindrical or tapered cutting surface of substantial length
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
  • B27G13/00—Cutter blocks; Other rotary cutting tools
  • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
  • B27G13/04—Securing the cutters by mechanical clamping means
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/04—Angles
  • B23C2210/0407—Cutting angles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/04—Angles
  • B23C2210/0407—Cutting angles
  • B23C2210/0421—Cutting angles negative
  • B23C2210/0428—Cutting angles negative axial rake angle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/04—Angles
  • B23C2210/0407—Cutting angles
  • B23C2210/0442—Cutting angles positive
  • B23C2210/045—Cutting angles positive axial rake angle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/04—Angles
  • B23C2210/0485—Helix angles
  • B23C2210/0492—Helix angles different
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/24—Overall form of the milling cutter
  • B23C2210/244—Milling cutters comprised of disc-shaped modules or multiple disc-like cutters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/40—Flutes, i.e. chip conveying grooves
• • 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
  • Y10T407/1902—Gang
• • 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
• • 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
  • Y10T407/27—Cutters, for shaping comprising tool of specific chemical composition

Definitions

• the invention relates to a roll mill, which is equipped with indexable inserts, in particular coated carbide inserts.
• Roll milling cutters used for machining non-ferrous metal strips or sheets have long been known.
• DE29913164 U1 describes, as known from hedgehog milling cutters, the use of carbide inserts for roll milling cutters. It is advantageous that re-sharpening of the inserts on relatively expensive grinding machines is no longer necessary and the better utilization is achieved by turning the inserts, d. H. 4 or 8 cutting edges of the plate can be used.
• Both types of milling cutter have arranged the cutting spirally over the bale length at the periphery of the milling cutter. Furthermore, the inserts have an angle of inclination (eg 10 °) with respect to the axis of rotation. This oblique arrangement is known to have the goal of a gentler cutting and thus to generate a lower dynamic load of the milling cutter and thus the entire machine. Also, this reduces the vibration excitation of the milling process.
• the milling force also generates a force component in the axial direction. This loads the thrust bearings of the roller mill and leads to transverse forces in the slab or band to be processed, which must be absorbed in the side guides.
• the lateral force affects so also negative on the tape. This is especially true for wider bands, higher decreases, or higher strength materials.
• the object of the invention is therefore to provide a roller cutter, with the axial forces acting on the cutter or the material to be processed are largely avoided.
• a roll mill whose roller body is provided with extending over its length, spaced apart and at an angle to the longitudinal axis grooves, in which indexable inserts, in particular coated carbide inserts are arranged, characterized in that the grooves and so that the cutting edges of the indexable inserts are aligned in sections with different angles, wherein the angles are chosen so that the axial forces arising during the milling process in one section are neutralized or defined small by the axial forces arising in the adjacent section.
• the roll mill the roll body is provided with extending over its length, spaced from each other and at an angle to the longitudinal axis grooves provided in which indexable inserts, in particular coated carbide inserts are arranged, characterized in that the indexable inserts in the grooves alternately arranged or oriented such that the axial force caused by the one indexable insert in the milling process is neutralized by the axial force caused by the adjacent indexable insert.
• the inclination angle ⁇ (or the orientation of the cutting edge) can be positive or be negative and change over the cutter length
• the grooves or cutting orientation are mirror-symmetrical to a transverse plane through the roll body.
• the roller body may also consist of axially juxtaposed discs, which are held together by clamping elements, in which case the grooves and thus the blade orientations extend mirror-symmetrically to the parting plane between the discs in each case two adjacent discs.
• the sum of the product of cutting length x cutting inclination angle of all cutting edges of the milling cutter should be zero.
• a defined low axial force can be generated by choosing a slightly different setting of the cutting edges in a positive direction compared to the negative direction, or the number of cutting edges with a positive inclination being slightly higher than those with a negative inclination.
• the orientation of the cutting edges of the inserts can be in the front view of the mill cutter arrow or arcuate in a convex or concave line or zig-zag line.
• the invention thus relates to a roll mill, which is equipped with indexable inserts, in particular coated carbide inserts.
• the indexable inserts are oriented so that during the milling process no or at most minimal or defined small axial forces that would act on the milling drum and the material to be processed occur.
• the mill cutter consists of a roller body 1 with grooves 2 incorporated in a spiral manner for the two roller halves on the entire roller circumference, in which the indexable inserts 3 are fastened. Details, neither to the attachment nor to the roller bearing, etc., were not shown, since these are not necessary for the understanding here.
• the guides of the band within the milling machine can be designed so easier with less space and are less burdened.
• the chip flight is directed slightly to the side, which favors the chip removal at the top. The gentle cut is still given by the oblique, staggered arrangement of the cutting.
• FIG. 1 Alternative arrangements and orientations of the blades are shown in FIG.
• the example a) corresponds to the embodiment of Figure 1 and is used only to understand the embodiment of b).
• the arrangement of the cutting in the front view is alternatively performed arcuate.
• the arrangement of the cutting plates according to a) and b) can assume a concave or convex arrangement form, ie the cutting of a row in eg milling center run first in the milling area or at another Curvature direction last into the milling area. Depending on the arrangement, the chips then fly outwards towards the edge of the slab or towards the middle of the slab.
• c) corresponds to the known in the above prior art embodiment with respect to the cutting plate assembly. However, every second carbide cutting edge is aligned differently.
• the roll body consists of individual disks in which the pitch direction is alternately changed.
• FIG. 4 A further advantageous design of a roller cutter can be seen in FIG. 4.
• carbide indexable inserts are combined block-wise in holding plates 4 (cassettes). These holding plates are in turn mounted on the base body in such a way that the orientation of the cutting, as already stated above, for. B. is arrow-shaped.
• two rows of cutting edges are outlined in more detail.
• Several double rows are arranged in the same way on the entire circumference.
• indexable insert shapes which can be used are shown in FIG.
• the plates may be square or rectangular advantageously designed with edge breakage.
• Coated carbide cutting inserts indexable inserts are preferably used.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=39495524

Family Applications (1)

Country Status (12)

Families Citing this family (15)

Family Cites Families (21)

• 2007
  • 2007-03-21 DE DE102007014262A patent/DE102007014262A1/de not_active Withdrawn
• 2008
  • 2008-02-11 EP EP08715490A patent/EP2136952A1/de not_active Withdrawn
  • 2008-02-11 KR KR1020097021986A patent/KR20090130862A/ko not_active Application Discontinuation
  • 2008-02-11 US US12/532,045 patent/US20110044773A1/en not_active Abandoned
  • 2008-02-11 RU RU2009138727/02A patent/RU2433892C2/ru not_active IP Right Cessation
  • 2008-02-11 CA CA002679959A patent/CA2679959A1/en not_active Abandoned
  • 2008-02-11 JP JP2009553899A patent/JP2010521329A/ja active Pending
  • 2008-02-11 CN CN200880008285.6A patent/CN101631635B/zh not_active Expired - Fee Related
  • 2008-02-11 WO PCT/DE2008/000265 patent/WO2008113314A1/de active Application Filing
  • 2008-02-26 TW TW097106623A patent/TW200848184A/zh unknown
  • 2008-11-02 UA UAA200910614A patent/UA94509C2/ru unknown
• 2009
  • 2009-08-05 ZA ZA200905484A patent/ZA200905484B/xx unknown

Non-Patent Citations (2)

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