CN102653015B - Planetary milling cutter - Google Patents

Planetary milling cutter Download PDF

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Publication number
CN102653015B
CN102653015B CN201210160584.XA CN201210160584A CN102653015B CN 102653015 B CN102653015 B CN 102653015B CN 201210160584 A CN201210160584 A CN 201210160584A CN 102653015 B CN102653015 B CN 102653015B
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CN
China
Prior art keywords
planet
cutter
milling cutter
spindle
gland
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.)
Expired - Fee Related
Application number
CN201210160584.XA
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Chinese (zh)
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CN102653015A (en
Inventor
王西彬
李慎旺
解丽静
张好强
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Publication date
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Priority to CN201210160584.XA priority Critical patent/CN102653015B/en
Publication of CN102653015A publication Critical patent/CN102653015A/en
Application granted granted Critical
Publication of CN102653015B publication Critical patent/CN102653015B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses a planetary milling cutter, which is mainly applied to high-efficiency milling for planes during machining. The planetary milling cutter comprises a main shaft box 1, a rotating main shaft 2, a positioning central shaft 3, fastening screws 4, a central bracket 5, bracket bolts 6, circular nuts 7, branch milling cutter shafts 8, planetary sleeve shafts 9, gland screws 10, bearing glands 11, oil seals 12, bearings 13, a rotating cutter disk 14, bracket inner oil seals 15, bolts 16, cover boards 17 and bracket outer oil seals 18, wherein the rotating cutter disk 14 rotates continuously under the driving of the rotating main shaft 2 which rotates continuously; the branch milling cutter shafts 8 rotate around the axis of the rotating main shaft 2 and also rotate around the respective axes; and the rotating machining motion of the planetary milling cutter is synthesized by the rotating motion of the rotating cutter disk 14 and the rotating motions of the branch milling cutter shafts 8. According to the planetary milling cutter, cutting force can be effectively reduced, cutting heat can be reduced, the durability of the cutter is improved, and the plane milling efficiency is improved.

Description

The planet milling cutter
Technical field:
The present invention relates to a kind of planet milling cutter, be mainly used in the high-efficient milling on the plane in machining.
Background technology:
Along with the development of mechanical processing industry, more and more higher to the efficiency requirement of processing.The efficiency efficiency that especially raising is processed on the basis of original machining equipment that improves processing is the problem that people study always.Traditional slabbing cutter is face cutter or slotting cutter, the diameter of face cutter is larger, and the area of a milling plane is larger, but is straight sword cutting because of it, therefore Milling Force is large than helical edges cutting, thereby has limited choosing of large cutting data and affected working (machining) efficiency.Although and slotting cutter is the helical edges cutting, consider that the factor diameters such as cost, manufacture can not be made again very large, thereby also can affect the working (machining) efficiency on the especially large plane of working (machining) efficiency.The present invention relates to a kind of planet milling cutter, be mainly used in the high-efficient milling on the plane in machining.
Summary of the invention:
The purpose of this invention is to provide a kind of planet milling cutter, high-efficient milling is carried out in the plane in machining.The present invention can effectively reduce cutting force, reduces heat in metal cutting, improve tool life, improves the efficiency of slabbing.
The planet milling cutter, comprise main spindle box 1, rotary main shaft 2, the planet milling cutter also comprises apotting spindle 3, trip bolt 4, center bearing bracket 5, support bracket bolt 6, round nut 7, divide cutter spindle 8, planet sleeve 9, gland screw 10, bearing gland 11, oil sealing 12, bearing 13, rotary head 14, support inner oil seal 15, bolt 16, cover plate 17 and support outer oil seal 18, apotting spindle 3 is positioned at rotary main shaft 2, in the hole of rotary head 14, rotary head 14 is by apotting spindle 3 centering, by trip bolt 4, with rotary main shaft 2, be connected, center bearing bracket 5 is connected with main spindle box 1 by support bracket bolt 6, cover plate 17 is connected with rotary head 14 by many bolts 16, and planet sleeve 9 is by upper and lower pair of bearings 13 and rotary head 14, cover plate 17 connects, and upper and lower pair of bearings 13 is compressed by corresponding metal (upper gland 11 respectively, metal (upper gland 11 respectively by many gland screws 10 respectively with cover plate 17, rotary head 14 is fastening, between planet sleeve 9 and gland 11, oil sealing 12 is housed, and planet sleeve 9 is connected with center bearing bracket 5 by gear pair, and a minute cutter spindle 8 is arranged in planet sleeve 9, divide cutter spindle 8 to be located in the taper hole of planet sleeve 9 bottoms by taper shank, rely on the flat transmission milling moment of cutting of taper shank bottom, the round nut 7 that divides cutter spindle 8 to be in contact with one another by two end faces is connected with planet sleeve 9, divide cutter spindle 8 lower outsides that the spiral cutting sword of dextrorotation is arranged, between center bearing bracket 5 and rotary head 14, support inner oil seal 15 is housed, between center bearing bracket 5 and cover plate 17, support outer oil seal 18 is housed, by two round nuts 7, divide cutter spindle 8, planet sleeve 9, many gland screws 10, pair of bearings gland 11, a pair of oil sealing 12, many groups of the assemblies that pair of bearings 13 forms and this multi-grade module equidistantly are arranged in take on the horizontal circumference that the axis of rotary main shaft 2 is the centre of gyration.
Center bearing bracket 5 lower outsides have the beveled gear teeth of a circle dextrorotation.Minute cutter spindle 8 middle parts are taper shank, between taper shank and spiral cutting sword, cut flatly, and there is screw thread in the outside, upper end.There is the left-handed beveled gear teeth of a circle in planet sleeve 9 outsides, middle part, and lower inside has taper hole, and the taper hole lower inside is cut flat.
Advantage of the present invention and beneficial effect are: can effectively reduce cutting force, reduce heat in metal cutting, improve tool life, improve the efficiency of slabbing.
The accompanying drawing explanation:
Fig. 1 is the A-A view (front view) of a kind of planet milling cutter of the present invention.
Fig. 2 is the B-B view (top view) of a kind of planet milling cutter of the present invention.
The specific embodiment:
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
The planet milling cutter is shown in Fig. 1, Fig. 2, comprises main spindle box 1, rotary main shaft 2, apotting spindle 3, trip bolt 4, center bearing bracket 5, support bracket bolt 6, round nut 7, minute cutter spindle 8, planet sleeve 9, gland screw 10, bearing gland 11, oil sealing 12, bearing 13, rotary head 14, support inner oil seal 15, bolt 16, cover plate 17 and support outer oil seal 18.In the present invention: apotting spindle 3 is positioned at rotary main shaft 2, in the hole of rotary head 14, rotary head 14 use apotting spindle 3 centering, by trip bolt 4, with rotary main shaft 2, be connected, center bearing bracket 5 is connected with main spindle box 1 by support bracket bolt 6, the bolt 16 that cover plate 17 is arranged by 12 horizontal circumference equal intervals is connected with rotary head 14, planet sleeve 9 is by laterally zygomorphic pair of bearings 13 and rotary head 14, cover plate 17 connects, upper and lower pair of bearings 13 is compressed by the laterally zygomorphic bearing gland 11 of correspondence respectively, metal (upper gland 11 respectively by the six roots of sensation take on the horizontal circumference that the axis of minute cutter spindle 8 is the centre of gyration uniform gland screw 10 respectively with cover plate 17, rotary head 14 is fastening, between planet sleeve 9 and gland 11, oil sealing 12 is housed, planet sleeve 9 is connected with center bearing bracket 5 by gear pair, divide cutter spindle 8 to insert in planet sleeve 9, divide cutter spindle 8 to be located in the taper hole of planet sleeve 9 bottoms by taper shank, rely on the flat transmission milling moment of cutting of taper shank bottom, the round nut 7 that divides cutter spindle 8 to be in contact with one another by two end faces is connected with planet sleeve 9, divide cutter spindle 8 lower outsides that the spiral cutting sword of dextrorotation is arranged, between center bearing bracket 5 and rotary head 14, support inner oil seal 15 is housed, between center bearing bracket 5 and cover plate 17, support outer oil seal 18 is housed, by two round nuts 7, divide cutter spindle 8, planet sleeve 9, 12 gland screws 10, pair of bearings gland 11, a pair of oil sealing 12, the assembly that pair of bearings 13 forms totally six groups and these six groups of assemblies equidistantly is arranged in and take on the horizontal circumference that the axis of rotary main shaft 2 is the centre of gyration.Center bearing bracket 5 lower outsides have the beveled gear teeth of a circle dextrorotation.Minute cutter spindle 8 middle parts are taper shank, between taper shank and spiral cutting sword, cut flatly, and there is screw thread in the outside, upper end.There is the left-handed beveled gear teeth of a circle in planet sleeve 9 outsides, middle part, and lower inside has taper hole, and the taper hole lower inside is cut flat.
Under the drive of the rotary main shaft 2 rotated continuously, rotary head 14 rotates continuously, element round nut 7 on rotary head 14, divide cutter spindle 8, planet sleeve 9, gland screw 10, bearing gland 11, oil sealing 12, bearing 13, bolt 16, all axis rotations around rotary main shaft 2 with rotary head 14 of cover plate 17, and center bearing bracket 5 is connected with main spindle box 1, therefore center bearing bracket 5 does not rotatablely move, be that center bearing bracket 5 is static, between planet sleeve 9 and center bearing bracket 5, be again that gear pair is connected, therefore planet sleeve 9 and minute cutter spindle 8 that is connected with it also rotate around self axis except the rotation of the axis around rotary main shaft 2 is, divide cutter spindle 8 bottoms to have the spiral cutting sword to complete cutting, the rotation working motion of planet milling cutter is the resultant motion rotatablely moved of rotatablely moving of rotary head 14 and minute cutter spindle 8 like this, the six roots of sensation divides cutter spindle 8 also to rotate around self axis except the axis around rotary main shaft 2 rotation is, the rotation processing resultant motion of planet milling cutter coordinates the feed motion of platen jointly to complete slabbing.
Oil sealing 12, support inner oil seal 15, support outer oil seal 18 all seal.The round nut 7 that adopts two end faces to be in contact with one another connects minute cutter spindle 8 and planet sleeve 9 mainly plays the locking effect of friction.
The left-handed beveled gear teeth in planet sleeve 9 outsides, middle part and the dextrorotation beveled gear teeth engagement of center bearing bracket 5 lower outsides, not only can reduce the shock and vibration of engagement itself, and during planet milling cutter main story, above two gear teeth engagements can produce downward additional axial force, this additional axial force can be divided the axial cutting force that make progress of cutter spindle 8 in cutting process by partial equilibrium, the partial vibration that this axial cutting force and minute cutter spindle 8 produce at cutting process has directly passed to main spindle box 1 by center bearing bracket 5, these power and vibration have effectively been reduced to rotary head 14 and the impact that turns main shaft 2, thereby improved the machining accuracy of whole planet milling cutter.
Because cutting is that spiral cutting sword by minute cutter spindle 8 bottoms completes and rotation limit, limit incision workpiece, effectively reduced cutting force, reduced heat in metal cutting so more straight sword is directly cut workpiece, simultaneously to divide cutter spindle 8 intermittent-cutting workpiece be every minute cutter spindle 8 to the six roots of sensation in process, cutting workpiece time and cutting workpiece time not, this is conducive to heat radiation, the planet milling cutter has reduced cutting force and has reduced not only heat in metal cutting radiating effect but also good simultaneously like this, so realize the high efficiency milling in the situation that same lathe output torque can strengthen cutting data.

Claims (4)

1. a planet milling cutter, comprise main spindle box (1), rotary main shaft (2) is characterized in that: the planet milling cutter also comprises apotting spindle (3), trip bolt (4), center bearing bracket (5), support bracket bolt (6), round nut (7), divide cutter spindle (8), planet sleeve (9), gland screw (10), bearing gland (11), oil sealing (12), bearing (13), rotary head (14), support inner oil seal (15), bolt (16), cover plate (17) and support outer oil seal (18), apotting spindle (3) is positioned at rotary main shaft (2), in the hole of rotary head (14), rotary head (14) is by apotting spindle (3) centering, rotary head (14) is connected with rotary main shaft (2) by trip bolt (4), center bearing bracket (5) is connected with main spindle box (1) by support bracket bolt (6), cover plate (17) is connected with rotary head (14) by many bolts (16), and planet sleeve (9) is by upper and lower pair of bearings (13) and rotary head (14), cover plate (17) connects, and upper and lower pair of bearings (13) is compressed by corresponding metal (upper gland (11) respectively, metal (upper gland (11) respectively by many gland screws (10) respectively with cover plate (17), rotary head (14) is fastening, between planet sleeve (9) and gland (11), oil sealing (12) is housed, planet sleeve (9) is connected with center bearing bracket (5) by gear pair, and a minute cutter spindle (8) is arranged in planet sleeve (9), divide cutter spindle (8) to be located in the taper hole of planet sleeve (9) bottom by taper shank, rely on the flat transmission milling moment of cutting of taper shank bottom, the round nut (7) that divides cutter spindle (8) to be in contact with one another by two end faces is connected with planet sleeve (9), divide cutter spindle (8) lower outside that the spiral cutting sword of dextrorotation is arranged, between center bearing bracket (5) and rotary head (14), support inner oil seal (15) is housed, between center bearing bracket (5) and cover plate (17), support outer oil seal (18) is housed, by two round nuts (7), divide cutter spindle (8), planet sleeve (9), many gland screws (10), pair of bearings gland (11), a pair of oil sealing (12), many groups of the assemblies that pair of bearings (13) forms and this multi-grade module equidistantly are arranged in take on the horizontal circumference that the axis of rotary main shaft (2) is the centre of gyration.
2. a kind of planet milling cutter according to claim 1, it is characterized in that: center bearing bracket (5) lower outside has the beveled gear teeth of a circle dextrorotation.
3. a kind of planet milling cutter according to claim 1 is characterized in that: minute cutter spindle (a 8) middle part is taper shank, between taper shank and spiral cutting sword, cuts flatly, and there is screw thread in the outside, upper end.
4. a kind of planet milling cutter according to claim 1 is characterized in that: there is the left-handed beveled gear teeth of a circle in the outside, planet sleeve (9) middle part, and lower inside has taper hole, and the taper hole lower inside is cut flat.
CN201210160584.XA 2012-05-23 2012-05-23 Planetary milling cutter Expired - Fee Related CN102653015B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210160584.XA CN102653015B (en) 2012-05-23 2012-05-23 Planetary milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210160584.XA CN102653015B (en) 2012-05-23 2012-05-23 Planetary milling cutter

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CN102653015A CN102653015A (en) 2012-09-05
CN102653015B true CN102653015B (en) 2014-01-08

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084633B (en) * 2013-01-15 2015-09-30 北京理工大学 A kind of method for designing of planet compound milling system
CN103071842B (en) * 2013-01-15 2015-01-21 北京理工大学 Special milling cutter made of difficult-to-process material
CN103406579B (en) * 2013-03-18 2016-06-29 郑志明 Multitool bluk recombination milling head
CN103522110A (en) * 2013-10-12 2014-01-22 上海三一精机有限公司 Multi-position indexable main shaft mechanism and machining center
EP3330025A1 (en) * 2016-11-30 2018-06-06 Seco Tools Ab Cutting assembly with multiple cutting tools for milling
CN108746797A (en) * 2018-06-28 2018-11-06 北京理工大学 A kind of Compound Machining tool milling-milling power head
CN110315113B (en) * 2019-06-19 2020-06-05 北京理工大学 Design and assembly method of single-shaft input planetary composite milling tool
CN110695694A (en) * 2019-08-12 2020-01-17 南通大学 System for four-axis false tooth numerical control machining center and adjusting method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6450738B1 (en) * 2001-02-08 2002-09-17 Ingersoll Cutting Tool Company Cutting fluid distributor for milling cutters
CN2868517Y (en) * 2006-03-03 2007-02-14 李小辉 Multiple milling head for numerical control milling machine
CN201275639Y (en) * 2008-10-08 2009-07-22 李小辉 Multishaft device of NC milling machine
CN201500904U (en) * 2009-05-15 2010-06-09 无锡文汇机械有限公司 Milling spindle transmission mechanism with double milling heads
CN102039451B (en) * 2009-10-19 2012-07-18 洛阳鸿拓重型齿轮箱有限公司 Planetary fingerlike facing cutter
CN101758280A (en) * 2009-11-12 2010-06-30 无锡恒富科技有限公司 Facing cutter

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Granted publication date: 20140108

Termination date: 20160523