CN102658391A - Spiral hole milling device - Google Patents

Spiral hole milling device Download PDF

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Publication number
CN102658391A
CN102658391A CN2012101571843A CN201210157184A CN102658391A CN 102658391 A CN102658391 A CN 102658391A CN 2012101571843 A CN2012101571843 A CN 2012101571843A CN 201210157184 A CN201210157184 A CN 201210157184A CN 102658391 A CN102658391 A CN 102658391A
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China
Prior art keywords
screw
motor
revolution
fixed
base plate
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Pending
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CN2012101571843A
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Chinese (zh)
Inventor
康仁科
董志刚
朱祥龙
王红嵩
郭东明
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Dalian University of Technology
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Dalian University of Technology
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Priority to CN2012101571843A priority Critical patent/CN102658391A/en
Publication of CN102658391A publication Critical patent/CN102658391A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a spiral hole milling device and relates to the field of hole milling machining devices, in particular to a spiral hole milling device of which the hole diameter can be precisely adjusted and three motions are independent and adjustable. The spiral hole milling device can be used for machining high-quality holes of aluminum alloy, titanium alloy and the like and machining integrated high-efficiency holes of composite materials or alloy laminating structures in the field of aerospace. The spiral hole milling device consists of a feeding device, a revolution device, a hole diameter adjusting device and a rotation device, wherein according to the feeding device, a feeding motor is connected with a lead screw and drives the lead screw to rotate and feed; according to the revolution device, a rotor drives a sleeve to revolute around a revolving central axis; according to the rotation device, a tool rotates at a high speed around a rotating central axis under drive of the motor; and according to the hole diameter adjusting device, slide blocks move along the dovetail groove direction. The invention provides a spiral hole milling device which has three motions of revolution, rotation and axial feeding at the independent and adjustable speed, has high eccentricity adjusting precision and is simple and compact in structure.

Description

A kind of helical milling device
Technical field
The present invention relates to a kind of hole milling processing unit (plant) field; But relate in particular to a kind of aperture fine adjustment and revolution, rotation and the independent adjustable helical milling device of three motions of axial feed, can be applicable to the high-quality drilling of aluminium alloy in the aerospace field, titanium alloy etc materials and the integrated high-efficiency drilling of composite/alloy laminated construction.
Background technology
Hole fabrication techniques in aircraft and the aircraft manufacturing is restricting the assembly quality and the efficient of aviation component; Like drilling on the material of extensive use aluminium alloy and this type of titanium alloy poor thermal conductivity; Adopt in the process of traditional fluted drill drilling; Bit wear is serious, and overheated borings meeting damages material processed hole wall, the difficult quality control of connecting hole.For composite/this type of alloy laminated construction difficult-to-machine material,, be prone to cause defectives such as composite layering, aperture burr and splitting because traditional fluted drill drilling is big because of axial force.On working (machining) efficiency, when especially on large-scale component, millions of holes being carried out drilling, traditional drill process is complicated, also needs many technologies such as reaming, fraising, spot-facing and deburring after the Twist Drill, and technological process is long, and drilling efficient is low.
The helical milling technology is one of effective technology that solves traditional drill process defective, and principle is with milling cutter rotation and revolution, realizes the spiral planetary motion along the axis direction feeding simultaneously, thereby processing is portalled.The advantage of this processing method is: one can process the hole of different-diameter to cutter, helps reducing number of cutters; Axial force is little, and carbon fibre material is not stratified, imports and exports no burr, and time processing just can guarantee the quality in required hole; Chip removal is easy, and caloric value is little, can not scald hole wall; The processing parameter matching of machining composite material/alloy laminated construction is easy.University Of Tianjin discloses patent of invention: automatic spiral hole-milling unit, patent No. CN200910306026, utilization be the adjusting eccentric throw method of two eccentric adjusting sleeves.Solution how to eliminate the gap between two eccentric adjusting sleeves is not proposed in this patent; Owing to do not dispose the axial feed system, can only realize planetary motion, need dispose other servicing units if realize the spiral planetary motion; In the organization plan that this patent proposes, spinning motor is installed in the eccentric adjusting sleeve, and the rotor of revoluting motor is installed in outside the eccentric adjusting sleeve, makes that the device radial dimension is bigger, and structure is compact inadequately.Nanjing Aero-Space University discloses patent of invention: helical milling device and method, and patent No. CN201010138419.5, the speed ratio of this device feed speed and revolution speed is fixed; Can not regulate separately; In addition, its offset is through single dovetail guiding, and is adjusted by rack-and-pinion; The adjustment precision is not high, and locking is complicated.
Summary of the invention
The technical barrier that the present invention will solve is the deficiency that overcomes the helical milling device existence that relates in the prior art; It is independent adjustable to the invention provides a kind of revolution, rotation and three movement velocitys of axial feed; Eccentric throw adjustment precision is high, and simple in structure, compact helical milling device.
The technical scheme that the present invention adopts is: a kind of helical milling device is characterized in that helical milling device is made up of feed arrangement I, revolution device II, aperture adjusting device III and rotating device IV.
Pair of guide rails 25 is arranged among the feed arrangement I, and guide rail 25 is fixed in the upper surface of long recess shape structure pedestal 1 boss, and 4 guide slides 24 are contained on the guide rail 25; With screw slide plate 21 and guide slides 24 are linked together; Fixed head 28 is fixed in the groove in the pedestal 1, and feeding motor 29 is installed on the fixed head 28, and feeding motor 29 is connected with leading screw 27 and drives leading screw 27 rotation; Thereby drive feed screw nut 3 move left and right, slide plate 21 is fixed on the feed screw nut 3 through slide plate screw 2;
The frame 12 that hollow tube-shape and both ends open are arranged among the revolution device II; Frame 12 is fixed on the upper surface of slide plate 21 through frame screw 38; Sleeve 10 is nested in the inside of frame 12 under the support of pair of bearings 11; Pair of bearings 11 is pressed in the frame 12 through drive end bearing bracket 13 and rear end cap 9 respectively, and drive end bearing bracket 13 is connected through drive end bearing bracket screw 31 and sleeve 10, and socket cover 8 is connected through socket cover screw 36 and sleeve 10; The rotor 6 that is inlaid with the separately-loaded motor of rotor coil 6a is fixed on the left surface of socket cover 8 through rotor screw 35; Rear end cap 9 is connected through rear end cap screw 33 and sleeve 10, and the stator 7 that is inlaid with the separately-loaded motor of stator permanent magnet 7a is connected through stator screw 34 with rear end cap 9, and rotor 6 drive sleeve 10 revolve round the sun around revolution center axis O-O;
Among the adjusting device III of aperture; Square tabular base plate 14 has swallow-tailed groove, and base plate 14 is connected with the left side of sleeve 10 through bottom plate screw 32, and dovetail panel 22 is connected on the base plate 14 through dovetail panel screw 30; Dovetail panel 22 has dovetail panel groove 22a; Two holding screws 23 are through being threaded on the dovetail panel 22, and the slide block 19 that moves along the direction of dovetail groove is inlaid in the dovetail groove that base plate 14 and dovetail panel 22 form, and nut block 16 is installed on the base plate 14 through nut block screw 37; Differential screw 15 has two sections screw threads that pitch is different; The epimere screw thread of differential screw 15 and nut block 16 threaded engagement, differential screw 15 hypomere screw threads and slide block 19 threaded engagement, spring 20 embeds between base plate 14 and the slide block 19;
The cutter of driving motor rotating at high speed 26 is arranged among the rotating device IV; Motor 26 is installed on the base plate 14 through motor screw 17; Cutter chuck 5 is installed in the output axle head of motor 26; Cutter 18 is fixed in by cutter chuck 5 on the output shaft of motor 26, and around rotation central axis O '-O ' rotation at a high speed, draw through the conducting slip ring 4 that is fixed on the rotor 6 by the cable of motor 26 under the driving of motor 26 for cutter 18.
Remarkable result of the present invention has provided a kind of helical milling device that carries out the helical milling processing of the processed pore diameter size of meticulous adjusting; Be used for difficult-to-machine materials such as titanium or aluminium alloy/carbon fibre composite, especially in a large amount of carbon fiber of large aircraft member, the hole processing of alloy laminated construction.Helical milling device of the present invention adopts one can process the hole of a plurality of diameters to cutter, significantly reduces number of changing knife and stock's stage property quantity, has improved working (machining) efficiency, and one procedure is complete to process high-quality hole.In addition, but adopt the separately-loaded motor, make the simple and compact for structure of helical milling device of the present invention, saved the space of helical milling device.
Description of drawings
The structural representation of Fig. 1 helical milling device of the present invention, the cutaway view of Fig. 2 helical milling device of the present invention, the A-A cutaway view of Fig. 3 Fig. 1, Fig. 4 are the B-B revolved sectional view of Fig. 1.Among the figure: 1 pedestal, 2 slide plate screws, 3 feed screw nuts, 4 conducting slip rings, 5 cutter chucks, 6 rotors, 7 stators, 8 socket cover; 9 rear end caps, 10 sleeves, 11 bearings, 12 frames, 13 drive end bearing brackets, 14 base plates, 15 differential screws, 16 nut block; 17 motor screws, 18 cutters, 19 slide blocks, 20 springs, 21 slide plates, 22 dovetail panels, 23 holding screws, 24 guide slides; 25 guide rails, 26 motors, 27 leading screws, 28 fixed heads, 29 feeding motors, 30 dovetail panel screws, 31 drive end bearing bracket screws, 32 bottom plate screws; 33 rear end cap screws, 34 stator screws, 35 rotor screws, 36 socket cover screws, 37 nut block screws, 38 frame screws, 6a rotor coil, 7a stator permanent magnet; 22a dovetail panel groove, the e side-play amount, the I feed arrangement, the II revolution device, III aperture adjusting device, IV rotating device, XYZ are Descartes's rectangular coordinate system.
The specific embodiment
Below in conjunction with technical scheme and accompanying drawing, the present invention is elaborated.In conjunction with Fig. 1 and Fig. 2 operation principle of the present invention is described.The helical milling device of this embodiment with drive cutter 18 at a high speed rotating device IV, the adjustment bore dia to be processed of rotation aperture adjusting device III, drive the cutter 18 revolution device II that central axis slowly runs around hole to be processed and drive feed arrangement I that cutter 18 reaches hole to be processed working depth and organically be combined into one and constitute.According to the diameter d of cutter 18 and the diameter D in hole to be processed; By formula e=(D-d)/2 calculates side-play amount e, utilizes aperture adjusting device III to adjust side-play amount e, and utilizes holding screw 23 fastening slide blocks 19 positions; Motor 26 drives cutter 18 high speed rotations; Rotor 6 drives the rotating device IV low speed revolution that links to each other with aperture adjusting device 18, and the motor of feeding simultaneously 29 drives cutter 18 along the feeding of Z positive direction, reaches predetermined depth until the hole depth that processes; Feeding motor 29 drives cutter 18 and withdraws from along the Z negative direction, accomplishes helical milling processing.
Fig. 1 is the structural representation of helical milling device of the present invention; Fig. 2 is the cutaway view of helical milling device of the present invention, and two groups of guide slides 24 can be free to slide along guide rail 25, and slide plate 21 is fixed on two groups of guide slides 24 upper surfaces; Slide plate 21 is connected with feed screw nut 3 simultaneously, Feeding motor 29Driving under, slide plate 21 can move along direction of feed Z to the left and right.
Drive end bearing bracket 13 and rear end cap 9 are pushed down the outer ring of pair of bearings 11 respectively, and socket cover 8 is pushed down the inner ring of pair of bearings 11 respectively with base plate 14, thereby sleeve 10 is fixed in the frame 12, can be along axis under the drive of the rotor 6 of separately-loaded motor O-OFreely rotate, on business transport moving the coiling for the cable run that prevents motor 26, the cable run of motor 26 is to be guided out through the conducting slip ring 4 that is installed on the rotor 6.
In conjunction with Fig. 3 and Fig. 4; As shown in Figure 3 in the adjusting device part of aperture along the A-A cutaway view of Fig. 1; Go into shown in Figure 4 along the B-B revolved sectional view of Fig. 1 in the adjusting device part of aperture; Cutter 18 clampings that helical milling is used carry out radial location in the groove of slide block 19 upper ends of motor 26 front ends embedding swallow-tail form on the cutter chuck 5 on the output axle head of motor 26.Dovetail panel 22 is connected on the base plate 14 through dovetail panel screw 30, and and dovetail panel 22 between form oat tail groove structure, the identical size of slide block 19 with oat tail groove structure, slide block 19 can be embedded between base plate 14 and the dovetail panel 22.Nut block 16 is fixedly installed on the base plate 14; 15 whiles of differential screw are threaded with nut block 16 and slide block 19; The screwed hole of slide block 19 processes along glide direction, its axis and the axis that is installed in the rotating device IV on the slide block 19 over against and perpendicular.Differential screw 15 is divided into two sections, and the rotation direction of two sections screw threads is identical, wherein: one section the pitch h that matches with nut block 16 1Bigger, as to cooperate that section pitch h with said slide block 19 2Smaller, when turning differential screw during 15 1 weeks, slide block 19 is the poor of said two sections different pitch, i.e. h with respect to the displacement of base plate 14 1-h 2, can reduce the pitch difference of two sections screw threads, thereby reach the purpose that improves aperture adjustment precision.The screw-in amount of the differential screw 15 that cooperates simultaneously through adjustment and nut block 16 and slide block 19 is controlled the revolution center axis O-OWith the rotation central axis O '-O 'Between side-play amount e.After treating that mobile adjustment finishes, utilize the slide block 19 that holds out against of holding screw 23 to position.Spring 20 embeds between base plates 14 and the slide block 19, is used to promote slide block 19 backhauls, and eliminates the effect of differential screw 15 and nut block 16 gaps and differential screw 15 and slide block 19 thread pitches, and after adjustment finished, that utilizes holding screw 23 held out against slide block 19.
In an embodiment of the present invention, according to the diameter d of cutter 18 and the diameter D in hole to be processed, by formula e=(D-d)/2 calculates side-play amount e.Unclamp holding screw 23, rotation differential screw 15 adjusts side-play amount e, and utilizes holding screw 23 fastening slide blocks 19 positions.During helical milling, motor 26 drives cutter 18 high speed rotations, and rotor 6 drives the revolution of rotating device IV low speed, and the motor of feeding simultaneously 29 drives cutter 18 along the feeding of Z+ direction, and until the hole that processes, the degree of depth in hole reaches predetermined depth.Last feeding motor 29 drives cutter 18 and withdraws from along the Z-direction, accomplishes helical milling processing.
Remarkable result of the present invention has provided a kind of processed pore diameter size of meticulous adjusting and revolution, rotation and independent adjustable helical milling device of three movement velocitys of axial feed of carrying out, and is used for difficult-to-machine material hole manufacture fields such as titanium or aluminium alloy/carbon fibre composite.The present invention adopts a cutter can process the hole of a plurality of diameters, significantly reduces number of changing knife and stock's stage property quantity, has improved working (machining) efficiency, and one procedure is complete to process high-quality hole.

Claims (1)

1. a helical milling device is characterized in that, helical milling device is made up of feed arrangement (I), revolution device (II), aperture adjusting device (III) and rotating device (IV);
Pair of guide rails (25) is arranged in the feed arrangement (I); Guide rail (25) is fixed in the upper surface of long recess shape structure pedestal (1) boss; 4 guide slides (24) are contained on the guide rail (25), with screw slide plate (21) and guide slides (24) are linked together, and fixed head (28) is fixed in the groove in the pedestal (1); Feeding motor (29) is installed on the fixed head (28); Feeding motor (29) is connected with leading screw (27) and drives leading screw (27) rotation, thereby drives feed screw nut (3) move left and right, and slide plate (21) is fixed on the feed screw nut (3) through slide plate screw (2);
The frame (12) that hollow tube-shape and both ends open are arranged in the revolution device (II); Frame (12) is fixed on the upper surface of slide plate (21) through frame screw (38); Sleeve (10) is nested in the inside of frame (12) under the support of pair of bearings (11); Pair of bearings (11) is pressed in the frame (12) through drive end bearing bracket (13) and rear end cap (9) respectively; Drive end bearing bracket (13) is connected through drive end bearing bracket screw (31) and sleeve (10); Socket cover (8) is connected through socket cover screw (36) and sleeve (10), and the rotor (6) that is inlaid with the separately-loaded motor of rotor coil (6a) is fixed on the left surface of socket cover (8) through rotor screw (35), and rear end cap (9) is connected through rear end cap screw (33) and sleeve (10); The stator (7) that is inlaid with the separately-loaded motor of stator permanent magnet (7a) is connected through stator screw (34) with rear end cap (9), and rotor (6) drive sleeve (10) is around the revolution center axis O-ORevolution;
In the aperture adjusting device (III); Square tabular base plate (14) has swallow-tailed groove; Base plate (14) is connected with the left side of sleeve (10) through bottom plate screw (32); Dovetail panel (22) is connected on the base plate (14) through dovetail panel screw (30), and dovetail panel (22) has dovetail panel groove (22a), and two holding screws (23) are through being threaded on the dovetail panel (22); The slide block (19) that moves along the direction of dovetail groove is inlaid in the dovetail groove that base plate (14) and dovetail panel (22) form; Nut block (16) is installed on the base plate (14) through nut block screw (37), and differential screw (15) has two sections screw threads that pitch is different, the epimere screw thread of differential screw (15) and nut block (16) threaded engagement; Differential screw (15) hypomere screw thread and slide block (19) threaded engagement, spring (20) embed between base plate (14) and the slide block (19);
The cutter motor rotating at high speed (26) of driving is arranged in the rotating device (IV); Motor (26) is installed on the base plate (14) through motor screw (17); Cutter chuck (5) is installed in the output axle head of motor (26); Cutter (18) is fixed on the output shaft of motor (26) by cutter chuck (5); Around rotation central axis O '-O ' rotation at a high speed, draw through the conducting slip ring (4) that is fixed on the rotor (6) by the cable of motor (26) under the driving of motor (26) for cutter (18).
CN2012101571843A 2012-05-18 2012-05-18 Spiral hole milling device Pending CN102658391A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962532A (en) * 2012-11-28 2013-03-13 北京航天新风机械设备有限责任公司 Grinding method for forming small-hole thread of hard and brittle material
CN102990453A (en) * 2012-11-30 2013-03-27 宁夏新瑞长城机床有限公司 Tool power device
CN103192125A (en) * 2013-03-28 2013-07-10 大连理工大学 Portable spiral hole milling device and machining method
CN103894657A (en) * 2014-03-25 2014-07-02 浙江大学 Variable parameter control holing method for laminated structure of aircraft
CN103934692A (en) * 2014-04-29 2014-07-23 黄河科技学院 Threaded hole drilling and tapping machine
CN103934493A (en) * 2014-04-28 2014-07-23 浙江日发航空数字装备有限责任公司 Hole milling device
CN104117719A (en) * 2014-07-14 2014-10-29 大连交通大学 Spiral hole milling device
CN104439445A (en) * 2014-11-12 2015-03-25 大连理工大学 Spiral hole milling device capable of automatically adjusting hole diameter and working method of spiral hole milling device
CN105728811A (en) * 2016-04-20 2016-07-06 南京信息职业技术学院 Robotized spiral drilling method and system for laminated structure of airframe
CN106077774A (en) * 2016-07-07 2016-11-09 大连理工大学 A kind of ultrasonic helical milling device and processing method
CN106670553A (en) * 2017-02-24 2017-05-17 大连交通大学 Planetary speed reduction type eccentricity-adjustable helical hole-milling device
WO2018010247A1 (en) * 2016-07-15 2018-01-18 浙江大学 Multi-functional end effector
CN107984015A (en) * 2018-01-10 2018-05-04 东北大学 A kind of helical milling device for composite material
CN108098433A (en) * 2018-01-31 2018-06-01 江苏工大金凯高端装备制造有限公司 A kind of high-accuracy adjusting apparatus for adjusting main shaft installation site
CN108340006A (en) * 2018-01-24 2018-07-31 汤蒙琪 A kind of plate milling device of mechanical processing adjustable aperture
CN108655474A (en) * 2018-05-06 2018-10-16 杨秀波 A kind of automatic milling device of bicycle drive shaft
CN115055746A (en) * 2022-07-28 2022-09-16 成都晶脉精密机械有限公司 Rotary milling cutter disc and milling machine

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CN101786180A (en) * 2010-03-31 2010-07-28 南京航空航天大学 Helical milling device and method
CN102139388A (en) * 2011-04-08 2011-08-03 南京航空航天大学 Helical hole-milling device and method based on numerical control machine
CN102179559A (en) * 2011-03-28 2011-09-14 南京信息职业技术学院 Spiral hole milling device for lathe and method thereof

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CN2048000U (en) * 1989-03-28 1989-11-22 汪明辉 Vernier fixture for cutter
CN201102070Y (en) * 2007-06-22 2008-08-20 大连三高重工设备有限公司 Steel tube butch haircut chamfering machine
WO2009005446A1 (en) * 2007-07-05 2009-01-08 Novator Ab An orbital drilling tool unit
CN101633060A (en) * 2009-08-25 2010-01-27 天津大学 Automatic spiral hole-milling unit
CN101786180A (en) * 2010-03-31 2010-07-28 南京航空航天大学 Helical milling device and method
CN102179559A (en) * 2011-03-28 2011-09-14 南京信息职业技术学院 Spiral hole milling device for lathe and method thereof
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962532A (en) * 2012-11-28 2013-03-13 北京航天新风机械设备有限责任公司 Grinding method for forming small-hole thread of hard and brittle material
CN102990453A (en) * 2012-11-30 2013-03-27 宁夏新瑞长城机床有限公司 Tool power device
CN103192125A (en) * 2013-03-28 2013-07-10 大连理工大学 Portable spiral hole milling device and machining method
CN103894657A (en) * 2014-03-25 2014-07-02 浙江大学 Variable parameter control holing method for laminated structure of aircraft
CN103934493B (en) * 2014-04-28 2017-02-15 浙江日发航空数字装备有限责任公司 Hole milling device
CN103934493A (en) * 2014-04-28 2014-07-23 浙江日发航空数字装备有限责任公司 Hole milling device
CN103934692A (en) * 2014-04-29 2014-07-23 黄河科技学院 Threaded hole drilling and tapping machine
CN103934692B (en) * 2014-04-29 2016-04-13 黄河科技学院 Screwed hole drilling tapping machine
CN104117719A (en) * 2014-07-14 2014-10-29 大连交通大学 Spiral hole milling device
CN104439445A (en) * 2014-11-12 2015-03-25 大连理工大学 Spiral hole milling device capable of automatically adjusting hole diameter and working method of spiral hole milling device
CN105728811B (en) * 2016-04-20 2018-04-03 南京信息职业技术学院 One kind is used for airframe laminated construction robotization spiral method for drilling
CN105728811A (en) * 2016-04-20 2016-07-06 南京信息职业技术学院 Robotized spiral drilling method and system for laminated structure of airframe
CN106077774A (en) * 2016-07-07 2016-11-09 大连理工大学 A kind of ultrasonic helical milling device and processing method
CN106077774B (en) * 2016-07-07 2018-01-30 大连理工大学 A kind of ultrasonic helical milling device and processing method
WO2018010247A1 (en) * 2016-07-15 2018-01-18 浙江大学 Multi-functional end effector
US10583500B2 (en) 2016-07-15 2020-03-10 Zhejiang University Multi-functional end effector
CN106670553A (en) * 2017-02-24 2017-05-17 大连交通大学 Planetary speed reduction type eccentricity-adjustable helical hole-milling device
CN106670553B (en) * 2017-02-24 2018-06-12 大连交通大学 Planetary reduction gear formula adjusts eccentricity helical milling device
CN107984015A (en) * 2018-01-10 2018-05-04 东北大学 A kind of helical milling device for composite material
CN108340006A (en) * 2018-01-24 2018-07-31 汤蒙琪 A kind of plate milling device of mechanical processing adjustable aperture
CN108098433A (en) * 2018-01-31 2018-06-01 江苏工大金凯高端装备制造有限公司 A kind of high-accuracy adjusting apparatus for adjusting main shaft installation site
CN108655474A (en) * 2018-05-06 2018-10-16 杨秀波 A kind of automatic milling device of bicycle drive shaft
CN115055746A (en) * 2022-07-28 2022-09-16 成都晶脉精密机械有限公司 Rotary milling cutter disc and milling machine

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Application publication date: 20120912