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
  • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
  • B23C5/2479—Securing arrangements for bits or teeth or cutting inserts adjustable the adjusting means being eccentrics
• • 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
  • B23C5/2265—Securing arrangements for bits or teeth or cutting inserts by means of a wedge
  • B23C5/2278—Securing arrangements for bits or teeth or cutting inserts by means of a wedge for plate-like cutting inserts fitted on an intermediate carrier, e.g. shank fixed in the cutter body
• • 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
  • B23C5/2298—Securing arrangements for bits or teeth or cutting inserts secured by resilient/flexible means
  • B23C5/2306—Securing arrangements for bits or teeth or cutting inserts secured by resilient/flexible means for plate-like cutting inserts fitted on an intermediate carrier, e.g. shank fixed in the cutter body
• • 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
  • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
• • 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
  • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
  • B23C5/2493—Securing arrangements for bits or teeth or cutting inserts adjustable where the adjustment is made by deforming the seating surfaces

Definitions

• the invention relates to a cassette which is used for receiving and fine adjustment of an indexable insert and which can be fastened even in the base body of a face milling cutter head, moreover with the features of the preamble of claim 1.
• a cassette of this type is in the German patent application P 37 32 268.0 and the European patent application with the publication no. 308951, both of which were only published after the filing date of the present application. According to these publications, a holding plate in the form of a quarter circle sector is used to hold one indexable insert each.
• the present invention is intended to make retaining plates in the form of quarter-circle sectors redundant.
• the indexable inserts are to be accommodated directly within the cassettes, and so that their effective secondary cutting edge and their adjustment angle can be finely adjusted.
• the indexable insert should be able to be rotated in an axial-radial plane of the base body of the face milling cutter head.
• the perforated or non-perforated indexable insert is inserted into the flat recess of the cassette and held in position within the cassette, which was initially loosely inserted into the base body. Then by rotating the rotating body of the eccentric arranged on it see cones the indexable insert rotated and thus fine-tuned until the desired angular position of their effective corner is reached. Finally, the indexable insert is clamped in the base body by driving in one of the wedges.
• adjustment screws can be used for fine adjustment of the impending position of the indexable insert, which are placed against the wall of a cutout of the base body, so that the base body and thus its eccentric pin are twisted.
• the base body can be fixed by tightening both dustiar screws.
• one can run into the base body of the cassette from one edge, the other from the other edge, against correspondingly arranged abutment surfaces on the rotating body.
• both threaded bores are preferably guided parallel to one another, and zuar from the same edge of the cassette. Both adjusting screws can then be operated either from the front of the face milling cutter head or both from the circumference.
• Figure '1 shows in natural size, partly in side view, for
• Figure 2 shows in plan view, partly in cross section along line II - II in Figure 1, the same base body with only one cartridge inserted.
• Figure 3 shows, on the other hand, enlarged, a cassette, see right in
• FIG. 4 shows this cassette in a view from below in FIG. 3.
• Figures 5 and 6 show side view bzu. Top view of a rotating body with an eccentric pin.
• the face milling cutter head shown in FIGS. 1 and 2 has a base body 10 and is rotatable about an axis of rotation 100.
• the face milling cutter head and parts of the cassette shown in FIGS. 3 and 4 have already been described in German patent application P 37 32 268.0 and the corresponding European pantent application. The following description relates to other parts of the invention.
• the cassette 16 has a flat recess 102 near its lower right corner in FIG. 3, the height (FIG. 4 above) of which corresponds to the thickness of a reversible snow plate 18.
• the length and width of the recess are dimensioned such that zuei effective cutting edges 96, 97 of an inserted insert protrude outwards.
• Protruding abutments 108 and 109 are provided near the two edges 104 and 106 of the cassette for the two ineffective cutting edges of the indexable insert. These abutments have a circular cylindrical contour.
• the cassette has a through hole in the area of the inner corner of the recess 102 112, which serves to receive a rotating body 114 (FIGS. 5 and 6) which is provided with an eccentric pin 116.
• the total height of the rotating body 114 and pin 116 corresponds to the thickness of the cassette, while the height of the rotating body 114 corresponds to the thickness of the cassette below (FIG. 4) the recess 102. Thus, only part of the eccentric pin 116 projects into the recess 102, as shown in FIG. 1.
• the eccentric pin has the shape shown in Figure 6 in plan view. It has a cylindrical wall section 117, which is aligned with the cylindrical surface of the rotating body 114 and, in the use position, serves to support the pin 116 on the inner wall of the bore 112.
• the pin 116 has in its remaining circumferential parts, starting from the rotating body 114, an axially parallel wall 119 and above it a tapered wall 121, corresponding to the shape of the side walls of an indexable insert.
• the rotating body 114 has a cutout 118 which is delimited by a plane wall 120 parallel to the axis and plane walls 122 and 123 running at right angles to the axis.
• additional threaded bores 125 are provided which run parallel to one another from the edge 104 against the bore 112 and into which an adjusting screw 128 in the form of a grub screw with a hexagon socket is to be screwed in for fine adjustment.
• the rotating body 114 is inserted into the bore 112, its wall 120 runs, for example, as shown in broken lines in FIG. 3. There, also with dashed lines, are shown for adjusting screws 128. There you touch the wall 120, uas corresponds to a final adjustment position. For fine adjustment, both are first loosened.
• the rotating body 114 is turned into a position in which its eccentric pin 116 brings the indexable insert 18 into the desired threatening position.
• the other adjusting screw is also set against the wall 120. Finally, both of them are tightened.
• the cassette 16 together with the indexable insert 18 is accommodated within a recess 14 of the base body 10 and fixed there with the aid of a clamping wedge 87, which preferably only touches the indexable insert, not also the cassette itself.
• the two threaded bores could also lead into the cassette from the edge 106 instead of the edge 104.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=6375095

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Citations (3)

Family Cites Families (4)

• 1989
  • 1989-02-28 DE DE3906197A patent/DE3906197A1/de active Granted
• 1990
  • 1990-02-28 AU AU51798/90A patent/AU5179890A/en not_active Abandoned
  • 1990-02-28 WO PCT/EP1990/000328 patent/WO1990009854A1/de unknown

Patent Citations (3)

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