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
  • B23C5/08—Disc-type cutters
• • 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
  • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
  • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
  • B23D61/02—Circular saw blades
  • B23D61/04—Circular saw blades with inserted saw teeth the teeth being individually inserted
  • B23D61/06—Circular saw blades with inserted saw teeth the teeth being individually inserted in exchangeable arrangement
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/12—Side or flank surfaces
  • B23C2200/121—Side or flank surfaces with projections
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2200/00—Details of milling cutting inserts
  • B23C2200/16—Supporting or bottom surfaces
  • B23C2200/161—Supporting or bottom surfaces with projections
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23C—MILLING
  • B23C2210/00—Details of milling cutters
  • B23C2210/16—Fixation of inserts or cutting bits in the tool
  • B23C2210/168—Seats for cutting inserts, supports for replacable cutting bits

Definitions

• the invention relates to a side milling cutter tool for milling or sawing metal blanks, in particular metal pipes or metal billets, with a disk-shaped base body and with several arranged on the edge region of the disk-shaped base body, interchangeable cutting elements, and with fastening means for releasably securing these cutting elements at the edge region of the disc-shaped Grundkör - pers, and further relates to a cutting element for use in a Scheibenfräserwerkmaschinection.
• Such a tool is known from DE 34 25 699 PS the same patent applicant.
• This tool for machining in particular for milling methods with high feed rates, has a disk-shaped base body and a plurality of interchangeable cutting elements arranged on the edge region of the disk-shaped base body, such as carbide blades or reversible cutting plates, and fastening means for releasably securing these cutting elements on the edge region of the disc-shaped base body ,
• the previously known tool especially for space milling, has been attached to the base body of the
• Tool or on a cutting element holder at least two cutting elements formed in a specific shape, in particular turning cutting plates made of hard metal, which are arranged with / without gap side by side as a combination of blades on the main body or in this holder.
• the reversible cutting plates have a square or triangular base surface, wherein in the base body correspondingly designed seats are provided for receiving the cutting forces.
• the reversible cutting plates are clamped to the base body by means of a clamping wedge.
• a cutting tool in which the cutting inserts the body can be fixed by clamping.
• the cutting inserts are clamped in a recess of the tool body by a part of the base body, which is designed as a resilient clamping arm.
• This is mainly used for long, narrow cutting inserts, as with tools for cutting or parting or
• the clamping force that clamps the cutting insert in the receptacle corresponds to the spring force of the clamping arm, either under clamping contact when inserting the cutting insert into the clamping insert
• Recording is automatically spread open, or is spread apart before insertion of the cutting insert by a suitable tool beyond the clamping position, whereby the positioning of the cutting insert is facilitated in the recording.
• the maximum attachable clamping force is limited for structural or material-technical reasons, so that it can come to a retraction of the cutting insert from the recording especially in disc cutters in which high centrifugal forces occur in use.
• adequate measures must be taken to prevent unintentional removal of the cutting inserts from the receptacle.
• Tools allows a much wider range of applications, and for example, the sawing of stainless steels, thereby enabling the use of arbitrary cutting geometries with maximum service life, with a change of a cutting plate, as in a premature outbreak of a cutting edge, as simple and fast as possible can, and in which on the other hand, the tendency generally occurring for disc cutters to harmful vibrations can be largely reduced or avoided.
• a side milling cutter tool for milling or sawing metal blanks, in particular metal pipes or metal billets, having the following features is provided:
• the tool has a disk-shaped basic body, on or on the edge region of which several interchangeable cutting elements, in particular hard metal knives, are arranged,
• the cutting elements such form positively or positively with the seats in mutual contact or at least rest with or on the seats or are recorded that at least such acting on the cutting elements transverse to the slice plane cutting forces are absorbed by the respective seats, wherein the seat has a seat support surface, which is bounded by a boundary elevation such that the edge elevation with the seat one to one side forms an open receiving pocket for positive reception of the cutting element,
• the cutting elements have a substantially prismatic or cuboid basic shape with at least one cutting edge whose width projects beyond the thickness of the disk-shaped base body,
• the cutting elements have at least one passage bore for receiving a fastening means, wherein the fastening means is formed by a fastening screw, which engages in a substantially arranged in the radial direction at the edge region of the disc-shaped base body threaded bore.
• the tool according to the invention has considerable advantages over the previously known embodiments.
• a detachable connection of the cutting elements by means of screws, in particular countersunk screws on the peripheral region of the body in a substantially radial direction in place of the previously known solder or clamp connections allows the use of any cutting geometries (without loops), and thus a significantly larger area of application, such as sawing of stainless steels.
• Higher service life is possible because, for example, if a cutting edge prematurely breaks out, only one cutting element needs to be changed.
• the screw fastening according to the invention is basically more robust such. As the self-clamping of inserts used so far or the attachment by means transverse to the disk plane fastening screws.
• the fastening of the cutting elements at the edge region of the disc-shaped base body takes place by means of the fastening screws in the tangential direction with respect to the circumferential direction of the main body disk, i. the cutting edge or the cutting edge associated upper cutting surface is arranged substantially in the tangential direction at the edge region of the disk-shaped base body.
• a substantially L-shaped recessed seat in the main body of the tool with a the one seat leg of the L-shaped seat forming seat support surface and formed with the other leg of the L-shaped seat forming seating surface for receiving the acting on a substantially prismatic or cuboidal basic shape having cutting elements cutting forces.
• the cutting element in a preferred structural embodiment may have a lower and / or an end abutment surface, which are in mutual contact with the seat support surface and / or with the seat bearing surface of the L-shaped seat, wherein the cutting element and the L-shaped seat Their mutual contact surfaces are executed positively.
• Cutting element seen in cross-section U-shaped Another essential advantage of the invention is that different types of cutting elements are formed, which can be used or fastened on the same base body, and of which at least one cutting element type has a plurality, at least two successively usable cutting edges.
• at least one type of cutting element may have a pre-cutter.
• a trimmer may be provided.
• both a pre-cutter and a trimmer can be provided, whereby an important advantage in this variant, a dual use of the cutting element results from the fact that in a first use the Nachschneiderkante is used, and then after a Consumption of the same and after turning by 180 ° during subsequent second use the Vorschneiderkante is reused.
• At least one type of cutting element can have one
• the z. B. is formed by a running in the circumferential direction of the body Spanteilernut.
• the chip breaker groove formed in or on the cutting surface plane is offset off-center, in two different directions of displacement, with the cutting elements sequentially secured to the main body alternately having chipbreaker grooves arranged in one and in the other displacement direction, thereby reducing the still calmer die run Vibration can be achieved.
• the tool is designed as a side milling cutter, and in particular designed as a side milling cutter for sawing with different cutting forms of the cutting elements.
• FIG. 1 is an exploded perspective view of a section of the tool according to an embodiment of the invention.
• Fig. 2 is a perspective view of the cutout of Figure 1 in the assembled state.
• Fig. 3 is a front view of a section of the tool according to the embodiment of the invention.
• FIGS. 1 to 3 The preferred embodiment of the invention shown in detail in FIGS. 1 to 3 comprises a tool 1 for machining, in particular for milling and / or sawing methods with high feed rates, with a disc-shaped base body 2 and with several arranged on the edge region of the disk-shaped base body 2
• the cutting elements 3 have a substantially prismatic or cuboid basic shape with at least one cutting edge 5, the largest width b the Thickness d of the disc-shaped base body 2 surmounted.
• the cutting width b is about 10 mm
• the slice thickness is about 8 mm.
• the cutting elements 3 have at least one passage hole 6 for receiving the fastening means 4, wherein the fastening means is formed in all embodiments by a fastening screw, which in a substantially in the radial direction at the edge region of the disk-shaped base body 2 arranged threaded bore 8 engages.
• the attachment of the cutting elements 3 takes place at the edge region of the disc-shaped base body 2 by means of the fastening screws 4 in a tangential direction with respect to the circumferential direction or direction of rotation t of the base body disk 2, ie the cutting edge 5 or the cutting edge associated upper cutting surface 7 is substantially in tangential direction at the edge region of the disk-shaped base body 2 is arranged.
• a substantially L-shaped recessed seat 10 in the base body 2 of the tool 1 with a one leg of the L-shaped seat 10 forming seat support surface 11 and one with the other leg the L-shaped seat 10 forming seat abutment surface 12 for receiving the cutting elements acting on the one substantially prismatic or cuboidal basic shape 3 cutting forces acting formed.
• chip spaces in the direction of rotation t are respectively formed after the cutting elements 3 in the form of round recesses which adjoin the L-shaped seats 10.
• the cutting element 3 has a lower abutment surface 15 and an end abutment surface 16, which are in mutual contact with the seat abutment surface 11 and with the seat abutment surface 12 of the L-shaped seat 10, respectively 3 and the L-shaped seat 10 are designed positively on their gegensei- term contact surfaces 11 and 15, for example, according to the illustrated in the figures, particularly preferred embodiment, in which the lower contact surface 15 of the cutting element 4 is seen in cross-section U-shaped , As a result, a particularly good lateral stabilization of the cutting element 3 in the recess or the seat 10 is achieved.
• the front-side contact surface 12 can also be cut in cross-section. be U-shaped design (not shown).
• the seat support surface 11 is delimited by an L-shaped edge elevation 9, and thus forms a receiving pocket open to one side for the positive reception of the cutting element 3.
• the edge elevation 9 ensures secure lateral support of the cutting element 3 received in the seat 10.
• the cutting width b is approx. 4 mm, with a tool diameter of approx. 500 to 800 mm, the cutting width b approx. 6 mm, with a tool diameter of approx. 800 to 1000 mm, the cutting width b approx. 8 mm, and with a tool diameter of about 1000 to about 2200 mm, the cutting width b is about 10 to 16 mm.
• FIGS. 1 to 3 different types of cutting elements can be provided, all of which can be used or fastened on the same disk-shaped base body 2.
• the cutting element type shown in the figures has two simultaneously or successively usable cutting edges 13 and 14, and indeed as the cutting edge 13 as a pre-cutter with a slightly emerging from the upper cutting element level 7 Vorschneider inhabitabexcellent to which a surface portion with a larger inclination angle connects and extends to the passage opening 6, and the cutting edge 14 may be formed as a trimmer with the thickness d of the main body 2 superior Nachschneiderbreite b.
• the advantage of this embodiment of the cutting element 3 is in a dual use of this cutting element in that at a first use with aligned in the direction of rotation t trim edge 14 this is worn faster because of the protruding width and then after turning by 180 ° in the subsequent second use the Pre-cutting edge 13 can be used can.
• the cutting elements are mounted in an alternating arrangement on the circumference of the base body 2, that is, a cutting element 3 with oriented in the direction of rotation t cutting 13 follows with such a counter-rotating direction oriented cutting edge 14.
• a chip divider can be provided, which is formed by a chip breaker groove extending in the circumferential direction t of the main body 2.
• the formed in or on the cutting surface plane 7 chip breaker is arranged eccentrically offset, in two different displacement directions, particularly 'the cutting elements successively fixed to the main body 2 alternately have a in the one and in the other Verset- wetting device disposed chip breaker, whereby a still quieter tool run with reduced vibration can be achieved.

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• 2009
  • 2009-01-22 WO PCT/AT2009/000022 patent/WO2010083541A1/de active Application Filing
  • 2009-01-22 EP EP09775530A patent/EP2401106A1/de not_active Withdrawn
  • 2009-01-22 RU RU2011134444/02A patent/RU2011134444A/ru not_active Application Discontinuation
  • 2009-01-22 CN CN200980155356XA patent/CN102292182A/zh active Pending
  • 2009-01-22 KR KR1020117019471A patent/KR20110135857A/ko not_active Application Discontinuation

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