CN102922023A - Face milling cutter with indexable inserts and knife pads thereof - Google Patents
Face milling cutter with indexable inserts and knife pads thereof Download PDFInfo
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- CN102922023A CN102922023A CN2012104526159A CN201210452615A CN102922023A CN 102922023 A CN102922023 A CN 102922023A CN 2012104526159 A CN2012104526159 A CN 2012104526159A CN 201210452615 A CN201210452615 A CN 201210452615A CN 102922023 A CN102922023 A CN 102922023A
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- edge bearing
- blade
- briquetting
- groove
- face milling
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Abstract
The invention discloses a face milling cutter with indexable inserts and knife pads thereof. Each knife pad is provided with a knife pad screw hole and a step groove. The step groove comprises a blade bottom contact face, a blade axial locating face and a blade radial locating face which are connected with each other. A notch with three sides opening is formed in each knife pad. Due to the design of the unique knife pads, blades are not in direct contact with a cutter body, the rigidity of the cutter body is greatly strengthened, the abrasion of the cutter body is reduced, the service life of the cutter is prolonged on the whole, and meanwhile the blades are enabled to be located without the need of being in contact with the cutter body, and the accuracy of repeated locating is high. The service life of the cutter is longer than face milling cutters of other types by more than 50%, the accuracy of processing workpieces is improved by more than one accuracy level, the replacement of the blades is convenient, and the processing cost is reduced greatly.
Description
Technical field
The present invention relates to a kind of metal-cutting machine tool, particularly a kind of indexable face milling cutter and edge bearing thereof.
Background technology
At present, the structure of face milling cutters commonly used is with a voussoir and a dowel screw, edge bearing is fitted on the cutter hub, with another voussoir and another dowel screw blade is clamped on the edge bearing again, each cutter tooth of this structure need to totally 5 parts could fastening blades with two dowel screws, two voussoirs and edge bearing, and number of spare parts is many, cutter hub Heavy Weight, feed consumption, work consuming, consuming time, the complexity of processing, material cost bigger than normal, and positioning accuracy is very poor.Chinese patent ZL200920039546.2 disclosed a kind of " indexable face milling cutter ", it is owing to lay the transverse plane that the back side of the edge bearing of blade has the half-cylindrical boss of inclination, the transverse plane of the half-cylindrical pit of the inclination that is provided with the mounting groove datum level of blade installation slot matches, blade is installed in obtains a reliable axial location on the cutter hub, thereby can save material, relatively possessed certain positioning accuracy.But for heavy cutting, in process, the damage of blade has greatly destroyed the cutter spacing groove on the cutter hub, and it is also very serious that cutter hub is damaged, even thoroughly scrap, thereby make the cost of charp tool high.The indexable face milling cutter of this structure because blade directly contacts with cutter hub, also can cause the overheated and wearing and tearing of cutter hub, affects the whole service life of cutter; Secondly because blade need to have certain precision at the cutter spacing groove of cutter hub, if therefore need another cutting angle of transposing blade or allowing blade replacement more, then want the operative employee to carry out complicated correction and need the very long adjustment working time, not only consuming time but also effort.
Summary of the invention
The objective of the invention is to solve the technical problem that existing cutter exists; a kind of indexable face milling cutter and edge bearing thereof of technological innovation are provided; it is higher that it has the blade positioning accuracy; it is convenient to change; damage and wear to cutter hub has fabulous protective effect; the scope of application is wider than existing cutter; the used cutter expense of processing work is also lower; both can be used for common boring; milling machine thick; smart effectively milling; also can be used for the numerical control boring; the high-precision milling of milling machine and machining center high-speed and high-efficiency, weight is lighter and handier; steadily, rigidity is stronger; install more convenient; it is accurate that the advantage that outward appearance is more exquisite, quality reach the international ohm American Standard, even can match in excellence or beauty with the American-European similar cutter in the world.
The technical scheme that realizes first purpose of the present invention is a kind of edge bearing of indexable face milling cutter, and described edge bearing is provided with the edge bearing screw hole; Be provided with the step groove of placing blade on it; Described step groove comprises continuous blade bottom surface contact-making surface, blade axial locating surface and blade radial location face, forms three unlimited breach at edge bearing.
Described edge bearing adopts the powder metallurgy material that comprises following proportioning: steel: 93 ~ 96%; Copper: 1.3 ~ 1.65%; Molybdenum 0.3 ~ 0.5%; Nickel 1.6 ~ 1.93%; Titanium 0.4 ~ 0.7%.
Described edge bearing also comprises groove; Described groove is arranged on blade bottom surface contact-making surface, blade axial locating surface and the blade radial location face, reduces blade and edge bearing contact-making surface, and directly, the axial location precision is more accurate, stable, firm, blade also can't be shifted.
Second purpose of the present invention is to solve the problem that prior art exists, provide that a kind of blade positioning accuracy is higher, more convenient, the blade cut sword of transposing blade need not the operative employee and proofreaies and correct and adjust, cutter hub fully without damage, nothing wearing and tearing, has been improved the indexable face milling cutter of cutter life on the whole.
The technical scheme that realizes second purpose of the present invention is a kind of indexable face milling cutter, comprises cutter hub, blade, edge bearing, briquetting and hold-down screw; Described edge bearing is provided with the edge bearing screw hole; Described briquetting is provided with the briquetting screw hole; Described hold-down screw comprises edge bearing hold-down screw and briquetting hold-down screw; On the described cutter hub vertically the cutting edge inclination direction be evenly distributed with edge bearing mounting groove and briquetting mounting groove; Described edge bearing and briquetting are separately positioned in edge bearing mounting groove and the briquetting mounting groove, and it is fastening to pass through respectively edge bearing hold-down screw and briquetting hold-down screw and cutter hub; Be provided with step groove on the described edge bearing; Described step groove comprises continuous blade bottom surface contact-making surface, blade axial locating surface and blade radial location face, forms three unlimited breach at edge bearing; The compression contacts side surfaces of described blade and briquetting.
The blade bottom surface contact-making surface of described edge bearing is arranged on an edge bearing side relative with the compression side of briquetting; Described blade radial location face is arranged on equidirectional that edge bearing contacts with the bottom land of the edge bearing mounting groove of cutter hub, blade radial location; Described blade axial locating surface is arranged on groove end in contact equidirectional of the edge bearing mounting groove of edge bearing and cutter hub, blade axial location; Described blade is arranged in the space that the compression side by the step groove of edge bearing and briquetting forms.
Described edge bearing adopts the powder metallurgy material that comprises following proportioning: steel: 93 ~ 96%; Copper: 1.3 ~ 1.65%; Molybdenum 0.3 ~ 0.5%; Nickel 1.6 ~ 1.93%; Titanium 0.4 ~ 0.7%.
Described edge bearing also comprises groove; Described groove is arranged on blade bottom surface contact-making surface, blade axial locating surface and the blade radial location face.
The compression side of described briquetting is the inclined-plane, compresses the angle of side and bottom surface greater than 90 degree.
On the compression side of described briquetting boss is set, contacts with blade by boss, make the briquetting clamping blade more firm, stable.
The bottom land of described edge bearing mounting groove is provided with the edge bearing installing hole; The bottom land of described briquetting mounting groove is provided with the briquetting installing hole.
Adopted technique scheme; the present invention has following beneficial effect: (1) the present invention has designed unique edge bearing; be provided with the step groove of placing blade on the edge bearing; the radial and axial location of blade is come intact realization by edge bearing at cutter hub fully; thereby blade is not directly contacted with cutter hub; the rigidity that has strengthened cutter hub has also greatly been protected the intact effect of cutter hub; the wearing and tearing of cutter hub still less; simultaneously so that blade does not need to contact cutter hub with the location of cutter hub; repetitive positioning accuracy is higher; the whole service life of cutter has improved more than 50% than the face milling cutters of other form; the processing work precision improves one more than the precision grade; more allowing blade replacement is also convenient simultaneously, and the processing cost decrease is technical optimization and the breakthrough to existing cutter.
(2) edge bearing of the present invention adopts special powder metallurgy material; the edge bearing of making has high density; high rigidity; good toughness; noise is little; resistance to wear; shock proof characteristic; thereby improved the durability of edge bearing; stability and the reliability that adds man-hour; the edge bearing of making than ordinary steel improves more than 2 times service life; the raw material that adopts simultaneously comes to the greatest extent the powder of iron waste material refining; need not to use intact steel to do; energy-conserving and environment-protective; resource regeneration; ultimate cost is lower than the edge bearing of making of steel; and can greatly improve with steel edge bearing contrast properties; blade plays optimum position more effectively; improve the intact effect of supporting, and protection cutter hub that can be fabulous.
(3) edge bearing design science of the present invention is reasonable, can blade play 3 faces support, accurately locate and protect, the size that can dwindle again edge bearing simultaneously, thus save the cutter material cost.
(4) also be provided with groove on edge bearing of the present invention and the face that blade contacts, employing replaces contacting of large-area and blade by several small sizes, on the basis of the support that guarantees blade, contact-making surface by minimizing and blade reaches the reduction blade to the heat transfer of edge bearing, the effect of raising edge bearing durability, has prolonged the service life of edge bearing.
(5) on the contact-making surface of briquetting of the present invention and blade boss is set, so that greatly reduce with the contact-making surface of blade, obtained to reduce the briquetting cost, increased the pressuring action of briquetting blade and reduced blade to heat transfer and the wearing and tearing of briquetting, prolonged the service life of briquetting.
(6) the present invention has novel structure, and exquisite appearance has good quality, and precision is high, the processing work Functionality, quality and appealing design uses, safeguards the advantages such as simple, and is applied widely, can use at high-speed, high-precision machining center, also can at low speed, use on the machine tool of large surplus cutting; Both can be used for roughing, also can be used for fine finishining.
Description of drawings
Content of the present invention is easier to be expressly understood in order to make, and the below is according to specific embodiment and by reference to the accompanying drawings, and the present invention is further detailed explanation, wherein
Fig. 1 is structural representation of the present invention.
Fig. 2 is the schematic diagram of another angle of the present invention.
Fig. 3 is the structural representation of cutter hub of the present invention.
Fig. 4 is the structural representation of edge bearing of the present invention.
Fig. 5 is the structural representation of briquetting of the present invention.
Fig. 6 is the schematic diagram that blade of the present invention, edge bearing and briquetting cooperate.
Label in the accompanying drawing is:
The specific embodiment
See Fig. 1 to Fig. 6, the indexable face milling cutter of present embodiment comprises cutter hub 1, blade 2, edge bearing 3, briquetting 4 and hold-down screw 5.
Hold-down screw 5 comprises edge bearing hold-down screw 5-1 and briquetting hold-down screw 5-2.
See Fig. 3, on the cutter hub 1 vertically the cutting edge inclination direction be evenly distributed with 9 groups of edge bearing mounting groove 1-1 and briquetting mounting groove 1-2.Every group of edge bearing mounting groove 1-1 and briquetting mounting groove 1-2 interconnect.The bottom land of edge bearing mounting groove 1-1 is provided with edge bearing installing hole 1-1-1.The bottom land of briquetting mounting groove 1-2 is provided with briquetting installing hole 1-2-1.
Edge bearing 3 is arranged in the edge bearing mounting groove 1-1, and edge bearing screw hole 3-1 is set on it, and edge bearing hold-down screw 5-1 passes edge bearing screw hole 3-1 edge bearing 3 is fixed in the edge bearing installing hole 1-1-1 of cutter hub 1.See Fig. 4, be provided with the step groove 3-2 that places blade on the edge bearing 3, step groove 3-2 is comprised of blade bottom surface contact-making surface 3-2-1, the blade radial location face 3-2-2 and the blade axial locating surface 3-2-3 that link to each other, forms three unlimited breach at edge bearing 3.Blade bottom surface contact-making surface 3-2-1 is arranged on edge bearing 3 side relative with the compression side 4-1 of briquetting 4.Blade radial location face 3-2-2 is arranged on the homonymy that edge bearing 3 contacts with the bottom land of the edge bearing mounting groove 1-1 of cutter hub 1, forms the base of blade 2, has guaranteed the radial location of blade 2.Blade axial locating surface 3-2-3 is arranged on groove end in contact equidirectional of edge bearing 3 and the edge bearing mounting groove 1-1 of cutter hub 1, and blade axial locating surface 3-2-3 has guaranteed the axial location of blade 2.Blade 2 is arranged in the space that the compression side 4-2 by the step groove 3-2 of edge bearing 3 and briquetting 4 forms, three faces of blade 2, and namely the bottom surface contacts with the step groove 3-2 of edge bearing 3 with two sides.Arbitrary or any two or three contact-making surfaces in blade bottom surface contact-making surface 3-2-1, blade radial location face 3-2-2, these three contact-making surfaces of blade axial locating surface 3-2-3 are provided with groove 3-3.Edge bearing 3 adopts the powder metallurgy material that comprises following proportioning: steel: 93 ~ 96%; Copper: 1.3 ~ 1.65%; Molybdenum 0.3 ~ 0.5%; Nickel 1.6 ~ 1.93%; Titanium 0.4 ~ 0.7%.
See Fig. 5, briquetting 4 is arranged in the briquetting mounting groove 1-2, and briquetting 4 is provided with briquetting screw hole 4-1, and briquetting hold-down screw 5-2 passes briquetting screw hole 4-1 briquetting 4 is fixed in the briquetting installing hole 1-2-1 of cutter hub 1.On the compression side 4-2 of briquetting 4 boss 4-2-1 is set, contacts with blade 2 by boss 4-2-1, the compression side 4-2 of briquetting 4 is the inclined-plane simultaneously, spends greater than 90 with the angle of bottom surface.
During assembling, fix first edge bearing 3, then put blade 2, again that briquetting 4 and cutter hub 1 is fastening, because briquetting 4 and blade 2 close contacts, the tapering of the simultaneously inclined-plane of the compression side 4-2 of briquetting 4 formation can tightly be clamped blade 2 fixing, thereby finishes assembling.Because blade 2 only need guarantee that with the radial and axial positioning accuracy of cutter hub 1 the blade footpath of edge bearing 3, the precision of axial location groove 3-2 get final product, so the installation of blade 2 and locate and just obtained great simplification.At the cutting edge of allowing blade replacement 2 more or more in the allowing blade replacement 2, need not to carry out the location of loaded down with trivial details blade 2 and cutter hub 1, can improve work efficiency, guarantee the uniformity of machining accuracy.And, the wearing and tearing of 2 pairs of cutter hubs 1 of blade have been avoided, only need in time to change the edge bearing that is worn 3 that is worth far below cutter hub 1 and get final product, stability and the wearability of the edge bearing 3 of powder metallurgy material greatly improve simultaneously, have further improved the precision of cutting-tool's used life and processing.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the edge bearing of an indexable face milling cutter, described edge bearing (3) is provided with edge bearing screw hole (3-1); It is characterized in that: be provided with the step groove (3-2) of placing blade on it; Described step groove (3-2) comprises continuous blade bottom surface contact-making surface (3-2-1), blade radial location face (3-2-2) and blade axial locating surface (3-2-3), forms three unlimited breach at edge bearing (3).
2. the edge bearing of indexable face milling cutter according to claim 1 is characterized in that: described edge bearing (3) adopts the powder metallurgy material that comprises following proportioning: steel: 93 ~ 96%; Copper: 1.3 ~ 1.65%; Molybdenum 0.3 ~ 0.5%; Nickel 1.6 ~ 1.93%; Titanium 0.4 ~ 0.7%.
3. the edge bearing of indexable face milling cutter according to claim 1 and 2, it is characterized in that: described edge bearing (3) also comprises groove (3-3); Described groove (3-3) is arranged on blade bottom surface contact-making surface (3-2-1), blade radial location face (3-2-2) and the blade axial locating surface (3-2-3).
4. an indexable face milling cutter comprises cutter hub (1), blade (2), edge bearing (3), briquetting (4) and hold-down screw (5); Described edge bearing (3) is provided with edge bearing screw hole (3-1); Described briquetting (4) is provided with briquetting screw hole (4-1); Described hold-down screw (5) comprises edge bearing hold-down screw (5-1) and briquetting hold-down screw (5-2); It is characterized in that: on the described cutter hub (1) vertically the cutting edge inclination direction be evenly distributed with edge bearing mounting groove (1-1) and briquetting mounting groove (1-2); Described edge bearing (3) and briquetting (4) are separately positioned in edge bearing mounting groove (1-1) and the briquetting mounting groove (1-2), and fastening with cutter hub (1) by edge bearing hold-down screw (5-1) and briquetting hold-down screw (5-2) respectively; Be provided with the step groove (3-2) of placing blade on the described edge bearing (3); Described step groove (3-2) comprises continuous blade bottom surface contact-making surface (3-2-1), blade radial location face (3-2-2) and blade axial locating surface (3-2-3), forms three unlimited breach at edge bearing (3); Described blade (2) contacts with the compression side (4-2) of briquetting (4).
5. indexable face milling cutter according to claim 4, it is characterized in that: blade bottom surface contact-making surface (3-2-1) of described edge bearing (3) is arranged on edge bearing (a 3) side relative with the compression side (4-2) of briquetting (4); Described blade radial location face (3-2-2) is arranged on the homonymy that edge bearing (3) contacts with the bottom land of the edge bearing mounting groove (1-1) of cutter hub (1), blade (2) radial location; Described blade axial locating surface (3-2-3) is arranged on groove end in contact equidirectional of the edge bearing mounting groove (1-1) of edge bearing (3) and cutter hub (1), blade (2) axial location; Described blade (2) is arranged in the space that the compression side (4-2) by the step groove (3-2) of edge bearing (3) and briquetting (4) forms.
6. indexable face milling cutter according to claim 5 is characterized in that: described edge bearing (3) adopts the powder metallurgy material that comprises following proportioning: steel: 93 ~ 96%; Copper: 1.3 ~ 1.65%; Molybdenum 0.3 ~ 0.5%; Nickel 1.6 ~ 1.93%; Titanium 0.4 ~ 0.7%.
7. indexable face milling cutter according to claim 6, it is characterized in that: described edge bearing (3) also comprises groove (3-3); Described groove (3-3) is arranged on blade bottom surface contact-making surface (3-2-1), blade radial location face (3-2-2) and the blade axial locating surface (3-2-3).
8. according to claim 4 to one of 7 described indexable face milling cutters, it is characterized in that: the compression side (4-2) of described briquetting (4) is the inclined-plane, compresses the angle of side (4-2) and bottom surface greater than 90 degree.
9. indexable face milling cutter according to claim 8 is characterized in that: on the compression side (4-2) of described briquetting (4) boss (4-2-1) is set, contacts with blade (2) by boss (4-2-1).
10. indexable face milling cutter according to claim 9, it is characterized in that: the bottom land of described edge bearing mounting groove (1-1) is provided with edge bearing installing hole (1-1-1); The bottom land of described briquetting mounting groove (1-2) is provided with briquetting installing hole (1-2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452615.9A CN102922023B (en) | 2012-11-12 | 2012-11-12 | Indexable face milling cutter and edge bearing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210452615.9A CN102922023B (en) | 2012-11-12 | 2012-11-12 | Indexable face milling cutter and edge bearing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102922023A true CN102922023A (en) | 2013-02-13 |
| CN102922023B CN102922023B (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210452615.9A Expired - Fee Related CN102922023B (en) | 2012-11-12 | 2012-11-12 | Indexable face milling cutter and edge bearing thereof |
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| Country | Link |
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| CN (1) | CN102922023B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231126A (en) * | 2013-04-19 | 2013-08-07 | 湖南中大创远数控装备有限公司 | Machining cutter |
| CN105171085A (en) * | 2015-10-29 | 2015-12-23 | 江苏中晟钻石工具有限公司 | Novel efficient disc milling cutter |
| CN114083002A (en) * | 2021-11-22 | 2022-02-25 | 齐鲁工业大学 | Machine presss from both sides transposition cutter with weak rigidity shim |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5240356A (en) * | 1991-03-28 | 1993-08-31 | Mitsubishi Materials Corporation | Nitrided cutter machining |
| JP2002178212A (en) * | 2000-12-12 | 2002-06-25 | Sumitomo Electric Ind Ltd | Rotary cutting tool |
| JP2008142870A (en) * | 2006-12-13 | 2008-06-26 | Tungaloy Corp | Cutting tool |
| CN101657285A (en) * | 2007-03-30 | 2010-02-24 | 京瓷株式会社 | Sheet member, rotary tool using the sheet member, and cutting method using the rotary tool |
| CN202877609U (en) * | 2012-11-12 | 2013-04-17 | 常州瑞诺切数控刀具有限公司 | Indexable face milling cutter and cutter pad of indexable face milling cutter |
-
2012
- 2012-11-12 CN CN201210452615.9A patent/CN102922023B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5240356A (en) * | 1991-03-28 | 1993-08-31 | Mitsubishi Materials Corporation | Nitrided cutter machining |
| JP2002178212A (en) * | 2000-12-12 | 2002-06-25 | Sumitomo Electric Ind Ltd | Rotary cutting tool |
| JP2008142870A (en) * | 2006-12-13 | 2008-06-26 | Tungaloy Corp | Cutting tool |
| CN101657285A (en) * | 2007-03-30 | 2010-02-24 | 京瓷株式会社 | Sheet member, rotary tool using the sheet member, and cutting method using the rotary tool |
| CN202877609U (en) * | 2012-11-12 | 2013-04-17 | 常州瑞诺切数控刀具有限公司 | Indexable face milling cutter and cutter pad of indexable face milling cutter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231126A (en) * | 2013-04-19 | 2013-08-07 | 湖南中大创远数控装备有限公司 | Machining cutter |
| CN103231126B (en) * | 2013-04-19 | 2015-07-15 | 湖南中大创远数控装备有限公司 | Machining cutter |
| CN105171085A (en) * | 2015-10-29 | 2015-12-23 | 江苏中晟钻石工具有限公司 | Novel efficient disc milling cutter |
| CN114083002A (en) * | 2021-11-22 | 2022-02-25 | 齐鲁工业大学 | Machine presss from both sides transposition cutter with weak rigidity shim |
| CN114083002B (en) * | 2021-11-22 | 2023-01-31 | 齐鲁工业大学 | Machine presss from both sides transposition cutter with weak rigidity shim |
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| Publication number | Publication date |
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| CN102922023B (en) | 2015-09-16 |
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Granted publication date: 20150916 Termination date: 20161112 |