DE2515937B1 - Annular milling tool cutting plate - segments with flange parallel to rotation plane, crossways support - Google Patents
Annular milling tool cutting plate - segments with flange parallel to rotation plane, crossways supportInfo
- Publication number
- DE2515937B1 DE2515937B1 DE19752515937 DE2515937A DE2515937B1 DE 2515937 B1 DE2515937 B1 DE 2515937B1 DE 19752515937 DE19752515937 DE 19752515937 DE 2515937 A DE2515937 A DE 2515937A DE 2515937 B1 DE2515937 B1 DE 2515937B1
- Authority
- DE
- Germany
- Prior art keywords
- segments
- cutter body
- milling
- milling tool
- inner circumference
- 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.)
- Pending
Links
- 238000003801 milling Methods 0.000 title claims abstract description 31
- 238000003754 machining Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 1
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
- B23C5/2226—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 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
- B23C5/2204—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
- B23C5/2234—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 fitted on a ring or ring segment
-
- 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
- B23C5/2239—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped by a clamping member acting almost perpendicular on the cutting face
- B23C5/2252—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped by a clamping member acting almost perpendicular on the cutting face 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
- B23C5/2239—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped by a clamping member acting almost perpendicular on the cutting face
- B23C5/226—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped by a clamping member acting almost perpendicular on the cutting face for plate-like cutting inserts fitted on a ring or ring segment
-
- 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
- B23C2210/503—Cutting inserts mounted internally on the cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/36—Production of grooves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/68—Whirling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
Description
26 sind in zwei Gruppen 2' und 2" zu je drei Schneidplatten im Abstand hintereinander an den blockförmigen Segmenten 3 befestigt, und zwar sind diese Schneidplattengruppen 2' und 2" so seitlich zueinander versetzt angeordnet, daß die Abstände zwischen den Schneidkanten der Schneid platten in der einen Gruppe durch die Schneidkanten der Schneidplatten in der nächsten Gruppe überbrückt sind und damit26 are in two groups 2 'and 2 ", each with three cutting inserts at a distance one behind the other attached to the block-shaped segments 3, namely, these are groups of cutting tips 2 'and 2 "so laterally offset from one another that the distances between the cutting edges of the cutting plates in one group through the cutting edges of the inserts in the next group are bridged and thus
über die ganze Breite des Segmentes 3 eine durchgehende Schneidkanten-Kontur entsteht.A continuous cutting edge contour over the entire width of segment 3 arises.
Jedes blockförmige Segment 3 hat an seiner den Schneidplatten-Sätzen 2 gegenüberliegenden Seite einen parallel zur Rotationsebene des ringförmigen Fräsergrundkörpers 1 gerichteten Flansch 4, der einseitig zur Mittelebene des Segmentes 3 versetzt angeordnet ist und seitlich gegen eine Ringschulter 5 des Fräsergrundkörpers 1 zur Anlage gebracht werden kann. Außerdem hat jedes Segment 3 seitlich neben dem Flansch 4 eine im wesentlichen quer zu dessen Ebene gerichtete, teilzylindrische Auflagefläche 6, mit der es gegen den Innenumfang des Fräsergrundkörpers 1 zur Anlage gebracht werden kann. Each block-shaped segment 3 has the cutting insert sets on its 2 opposite side one parallel to the plane of rotation of the ring-shaped cutter body 1 directed flange 4, which is offset on one side to the center plane of segment 3 is arranged and laterally against an annular shoulder 5 of the cutter body 1 to Attachment can be brought. In addition, each segment has 3 on the side next to the flange 4 a partially cylindrical bearing surface directed essentially transversely to its plane 6, with which it is brought to bear against the inner circumference of the cutter body 1 can be.
Mit Hilfe von parallel zur Rotationsachse des Fräsergrundkörpers 1 gerichteten Spannschrauben 8, welche in Gewindelöcher 9 der Ringschulter 5 des Fräsergrundkörpers 1 eingreifen, können die einzelnen Segmente 3 am Innenumfang des Fräsergrundkörpers 1 lösbar befestigt werden. Dabei haben die Schrauben 8 konische Spannköpfe 10, die in Ansenkungen 11 der im Flansch 4 befindlichen Durchgangslöcher 12 eingreifen. With the help of parallel to the axis of rotation of the cutter body 1 directional clamping screws 8, which in threaded holes 9 of the annular shoulder 5 of the Intervene milling cutter body 1, the individual segments 3 on the inner circumference of the cutter body 1 are releasably attached. The screws have 8 conical Clamping heads 10, which are in countersinks 11 of the through holes located in the flange 4 12 intervene.
Jeweils zwei Schrauben 8 dienen zur Befestigung eines Segmentes 3, wie das deutlich aus F i g. 1 ersichtlich ist.Two screws 8 each are used to attach a segment 3, as is clear from FIG. 1 can be seen.
Ein Loch 13 im Flansch 4 jedes Segmentes 3 wirkt mit einem Zapfen 14 an der Ringschulter 5 zusammen, derart, daß hierdurch der Teilungsabstand zwischen den einzelnen Segmenten am Innenumfang des Fräsergrundkörpers 1 bestimmt werden kann. Das Loch 13 im Flansch 4 ist dabei in seinem Durchmesser größer als der Durchmesser der Zapfen 14.A hole 13 in the flange 4 of each segment 3 acts with a pin 14 on the annular shoulder 5 together, in such a way that this results in the pitch between the individual segments on the inner circumference of the cutter body 1 can be determined can. The hole 13 in the flange 4 is larger in diameter than the diameter the pin 14.
Die Zapfen 14 sitzen jeweils zwischen den beiden zur Befestigung eines Segmentes 3 dienenden Gewindelöcher 9 an der Ringschulter 5 und zwar so, daß sie von dem einen Gewindeloch 9 einen geringeren Abstand als von dem anderen Gewindeloch haben. Das Loch 13 im Flansch 4 der Segmente ist hingegen genau mittig zwischen den beiden Durchgangslöchern 12 für die Schrauben 8 angeordnet. The pins 14 each sit between the two for attachment a segment 3 serving threaded holes 9 on the annular shoulder 5 in such a way that they have a smaller distance from one threaded hole 9 than from the other threaded hole to have. The hole 13 in the flange 4 of the segments, however, is exactly in the middle between the two through holes 12 for the screws 8.
Durch diese Maßnahme wird erreicht, daß die die Löcher 12 im Flansch 4 durchgreifenden Schrauben 8 bei ihrem Eindrehen in die Gewindelöcher 9 der Ringschulter 5 auf Biegung beansprucht werden, sobald ihre konischen Spannköpfe 10 in die Ansenkungen 11 der Flansche 4 eintreten. Durch das Anziehen der Schrauben 8 werden damit die blockartigen Segmente 3 einerseits parallel zur Rotationsachse des Fräsergrundkörpers 1 mit ihrem Flansch 4 gegen die Ringschulter 5 verspannt. Andererseits ergibt sich durch die elastische Verbiegung der Schrauben 8 eine radial-tangential zum Innenumfang 7 des Fräsergrundkörpers 1 gerichtete Spannkraft-Komponente entsprechend den Richtungspfeilen 15 in Fig. 1. Durch diese werden die Segmente mit ihrer teilzylindrischen Stützfläche 6 gegen den Innenumfang 7 des Fräsergrundkörpers 1 unter Vorspannung gehalten. Eine zwangsläufig exakte Lagenausrichtung jedes einzelnen Segmentes 3 am ringförmigen Fräsergrundkörper 1 wird dadurch auf einfache Weise, d. h. ohne umständliche Justierarbeit, gewährleistet. This measure ensures that the holes 12 in the flange 4 penetrating screws 8 when they are screwed into the threaded holes 9 of the ring shoulder 5 are subjected to bending as soon as their conical clamping heads 10 in the countersinks 11 of the flanges 4 enter. By tightening the screws 8, the block-like segments 3 on the one hand parallel to the axis of rotation of the cutter body 1 braced with its flange 4 against the annular shoulder 5. On the other hand it arises due to the elastic bending of the screws 8 a radial-tangential to the inner circumference 7 of the milling cutter body 1 directed clamping force component according to the directional arrows 15 in Fig. 1. Through this, the segments with their part-cylindrical support surface 6 held against the inner circumference 7 of the cutter body 1 under bias. One necessarily exact position alignment of each individual segment 3 on the ring-shaped Milling cutter body 1 is thereby in a simple manner, i. H. without cumbersome adjustment work, guaranteed.
Form und Abmessung der einzelnen Segmente 3 sind so gewählt, daß nach ihrer Befestigung am Fräsergrundkörper 1 jeweils zwischen aufeinanderfolgenden Segmenten 3 ein radial gerichteter Abstandsspalt 16 bestehen bleibt und daß außerdem zwischen den freien Enden des Flansches 14 und der benachbarten Ringfläche des Werkzeugträgers 1 ein Ringspalt 17 frei bleibt. Diese Ringspalte 16 und 17 sind für eine dauerhaft exakte Arbeitsweise des ringscheibenförmigen Fräswerkzeugs von wesentlicher Bedeutung. Sie lassen es nämlich zu, daß die einzelnen Segmente 30 unter Einwirkung der bei der Zerspanungsarbeit entstehenden Wärmeentwicklung ausdehnen können, ohne daß sich diese Wärmedehnungen auf den Fräsergrundkörper 1 übertragen. Thermisch bedingte Maßänderungen und Verspannungen am Fräsergrundkörper 1 können dadurch weitestgehend ausgeschaltet werden. Eine dauerhafte präzise Zerspanungsarbeit ist somit gewährleistet. The shape and dimensions of the individual segments 3 are chosen so that after their attachment to the milling cutter body 1 between successive Segments 3 a radially directed spacing gap 16 remains and that also between the free ends of the flange 14 and the adjacent annular surface of the tool carrier 1 an annular gap 17 remains free. These annular gaps 16 and 17 are permanent for one exact operation of the annular disk-shaped milling tool is essential. You allow it that the individual segments 30 under the action of at the heat generated by machining can expand without these thermal expansions are transferred to the cutter body 1. Thermally caused Dimensional changes and tension on the milling cutter body 1 can largely turned off. Permanent precise machining work is thus guaranteed.
Es leuchtet ohne weiteres ein, daß jedes einzelne mit einem Schneidplattensatz 2 besetzte Segment 3 im Bedarfsfalle leicht und schnell vom Fräsergrundkörper 1 gelöst und gegen ein anderes Segment 3 gleicher Form und Schneidplatten-Bestückung ausgetauscht werden kann, ohne daß umständliche Justierarbeiten vorgenommen werden müßten. Es ist hierfür nämlich lediglich das Lösen und Wiederanziehen von zwei Schrauben 8 nötig. It goes without saying that every single one with a set of cutting tips 2 occupied segment 3, if necessary, easily and quickly from the milling cutter body 1 solved and against another segment 3 of the same shape and cutting inserts can be exchanged without cumbersome adjustment work being carried out would have to. It is simply a matter of loosening and retightening two screws 8 necessary.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752515937 DE2515937B1 (en) | 1975-04-11 | 1975-04-11 | Annular milling tool cutting plate - segments with flange parallel to rotation plane, crossways support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752515937 DE2515937B1 (en) | 1975-04-11 | 1975-04-11 | Annular milling tool cutting plate - segments with flange parallel to rotation plane, crossways support |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2515937B1 true DE2515937B1 (en) | 1976-10-21 |
Family
ID=5943640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752515937 Pending DE2515937B1 (en) | 1975-04-11 | 1975-04-11 | Annular milling tool cutting plate - segments with flange parallel to rotation plane, crossways support |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2515937B1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0065640A2 (en) * | 1981-05-23 | 1982-12-01 | Santrade Ltd. | Internal disc-type milling cutter |
DE3120588A1 (en) * | 1981-05-23 | 1982-12-30 | Santrade Ltd., 6002 Luzern | Disc milling cutter |
DE3126710C1 (en) * | 1981-07-07 | 1983-04-07 | Santrade Ltd., 6002 Luzern | Internally geared disc milling cutter |
EP0130267A1 (en) * | 1983-07-05 | 1985-01-09 | GFM Gesellschaft für Fertigungstechnik und Maschinenbau Gesellschaft m.b.H. | Cutter head |
EP0372717A2 (en) * | 1988-12-02 | 1990-06-13 | General Motors Corporation | Internal disk milling cutter with improved cutter insert |
AT406028B (en) * | 1995-09-27 | 2000-01-25 | Boehlerit Gmbh & Co Kg | Tool for machining workpieces |
EP2146814A1 (en) * | 2007-05-16 | 2010-01-27 | Klingelnberg AG | Cutting tool for bevel gears with cutting strips |
CN103056432A (en) * | 2012-12-18 | 2013-04-24 | 武昌造船厂集团有限公司 | Marine large-size plane milling device and machining method thereof |
EP3335821A1 (en) * | 2016-12-14 | 2018-06-20 | Sandvik Intellectual Property AB | Internal milling cutter |
-
1975
- 1975-04-11 DE DE19752515937 patent/DE2515937B1/en active Pending
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0065640A2 (en) * | 1981-05-23 | 1982-12-01 | Santrade Ltd. | Internal disc-type milling cutter |
DE3120588A1 (en) * | 1981-05-23 | 1982-12-30 | Santrade Ltd., 6002 Luzern | Disc milling cutter |
EP0065640A3 (en) * | 1981-05-23 | 1984-03-28 | Santrade Ltd. | Internal disc-type milling cutter |
DE3126710C1 (en) * | 1981-07-07 | 1983-04-07 | Santrade Ltd., 6002 Luzern | Internally geared disc milling cutter |
EP0130267A1 (en) * | 1983-07-05 | 1985-01-09 | GFM Gesellschaft für Fertigungstechnik und Maschinenbau Gesellschaft m.b.H. | Cutter head |
EP0372717A3 (en) * | 1988-12-02 | 1991-04-03 | General Motors Corporation | Internal disk milling cutter with improved cutter insert |
EP0372717A2 (en) * | 1988-12-02 | 1990-06-13 | General Motors Corporation | Internal disk milling cutter with improved cutter insert |
AT406028B (en) * | 1995-09-27 | 2000-01-25 | Boehlerit Gmbh & Co Kg | Tool for machining workpieces |
EP2146814A1 (en) * | 2007-05-16 | 2010-01-27 | Klingelnberg AG | Cutting tool for bevel gears with cutting strips |
CN103056432A (en) * | 2012-12-18 | 2013-04-24 | 武昌造船厂集团有限公司 | Marine large-size plane milling device and machining method thereof |
EP3335821A1 (en) * | 2016-12-14 | 2018-06-20 | Sandvik Intellectual Property AB | Internal milling cutter |
WO2018108344A1 (en) * | 2016-12-14 | 2018-06-21 | Sandvik Intellectual Property Ab | Internal milling cutter |
JP2020501920A (en) * | 2016-12-14 | 2020-01-23 | サンドビック インテレクチュアル プロパティー アクティエボラーグ | Internal milling cutter |
US11311950B2 (en) | 2016-12-14 | 2022-04-26 | Sandvik Intellectual Property Ab | Internal milling cutter |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Publication of the examined application without previous publication of unexamined application |