CN109158630A - Low-high frequency coupled vibration drill unit - Google Patents
Low-high frequency coupled vibration drill unit Download PDFInfo
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- CN109158630A CN109158630A CN201811302002.0A CN201811302002A CN109158630A CN 109158630 A CN109158630 A CN 109158630A CN 201811302002 A CN201811302002 A CN 201811302002A CN 109158630 A CN109158630 A CN 109158630A
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- edge cam
- fixed disk
- flexible hinge
- taper shank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B37/00—Boring by making use of ultrasonic energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of low-high frequency coupled vibration drill units, it includes low-frequency vibration system and dither system.Low-frequency vibration system includes crust of the device, band taper shank edge cam, five driven edge cam, fixed disk and looped flexible hinge component parts, by the rotation of machine tool chief axis so that being turned round with taper shank edge cam and generating excitation, by the coordinative role of sliding block, driven edge cam and looped flexible hinge in fixed disk, realize that amplitude transformer generates axial low-frequency vibration while high speed rotation.Dither system includes supersonic generator, radio transmitting device, energy converter and amplitude transformer, high-frequency mechanical vibration signal is converted electrical signals to by supersonic generator, radio transmitting device and energy converter, cutter is passed to after amplitude transformer is amplified, realizes the axial high-frequency vibration of cutter.The present invention is directly installed on machine tool chief axis, changes low-and high-frequency vibration parameters for different materials and low-and high-frequency complex method carries out high-precision drilling processing.
Description
Technical field:
The present invention relates to drilling devices in a kind of machining, more particularly to a kind of low-high frequency coupled vibration drill unit.
Background technique:
With the continuous development of modern science and technology, in fields such as Aeronautics and Astronautics, national defence and traffic, the requirement to material is increasingly
It is high.Carbon fibre composite (CFRP) and titanium alloy-based in respectively excellent characteristic, is widely used, CFRP in aerospace field
General and titanium alloy member is assembled by bolt and rivet interlacement, in order to guarantee assembly precision, improve production efficiency, needs to adopt
Connecting hole is processed with laminated construction.In CFRP/ titanium alloy laminated construction drilling, since two kinds of materials belong to difficult-to-machine material
And performance and working process parameter differ greatly, so that drilling quality is poor, cutter life is short.
Experts and scholars both domestic and external are to CFRP, titanium alloy and CFRP/ titanium alloy laminated construction using vibration auxiliary drill
The method cut is tested, research shows that: cutting temperature and cutting can be substantially reduced when low frequency axial vibration drilling CFRP
Power, but lamination defect is not improved；It being capable of chip breaking chip removal well, reduction axial force and cutting temperature when drilling titanium alloy
Degree improves surface quality, form accuracy and the dimensional accuracy in hole, reduces entrance burr.When using Ultrasonic Vibration Drilling CFRP
Axial force can be reduced, lamination defect is reduced, reduces tool wear, but temperature is risen；It can be dropped when drilling titanium alloy
Low cutting force and torque slow down tool wear, but temperature is higher than common drilling.In the drilling of CFRP/ titanium alloy laminated construction
In processing, if it is possible to low-frequency vibration and ultrasonic vibration are reasonably combined, respective advantage is played, make up it is respective not
Foot, will generate good effect.It should be CFRP/ titanium alloy lamination knot using the processing method that height frequency vibration composite drill is cut
It is configured an important directions of hole research.
Currently, existing scholar proposes vibration drilling device, such as a kind of patent " vibration drilling device " (Shen
Please numbers 201610002983.1,105499626 A of publication number CN, publication date: 2016.04.20) invention a kind of compound vibration
Dynamic drill unit, the ultrasonic torsion vibration needed for being realized using ultrasonic torsion vibration system drive drill bit are axially shaken by low frequency
Dynamic system drive workpiece realizes low frequency axial vibration, and radio frequency system and low frequency system need separately to carry out installation and debugging, and its is low
Frequency vibration width is smaller, and amplitude is unstable after loading, is easy missing.Patent " a kind of vibration drilling device and processing method "
One kind of (application number 201710502563.4,107262761 A of publication number CN, publication date: 2017.10.20) invention is compound
Vibration drilling device realizes low-frequency vibration using cam and low-frequency vibration executing agency, provides low-frequency vibration by spring
Restoring force, stepper motor controls the amplitude of low-frequency vibration by controlling the position of low frequency executing agency, when work, low frequency vibration
It is sliding friction between dynamic executing agency and cam, generates heat larger；Electric current is transmitted through brush for telecommunications in ultrasonic vibration system
Piezoelectric ceramics group number is passed to, friction is serious, causes temperature excessively high, influences system stability.
Summary of the invention:
The technical problems to be solved by the present invention are: overcoming the deficiencies of the prior art and provide, a kind of design is reasonable, can be directed to not
Change the low-high frequency coupled vibration drill unit of low-and high-frequency vibration parameters and low-and high-frequency complex method with material.
The technical scheme is that
A kind of low-high frequency coupled vibration drill unit, including low-frequency vibration system and dither system, the low-frequency vibration
System is comprising crust of the device and with taper shank edge cam, the lower end outer surface with taper shank edge cam and described device shell
The connection of inner cavity top rotary type, be provided with looped flexible hinge in the inner cavity with taper shank edge cam, the ring-type is soft
The top of property hinge is provided with driven edge cam, the lower end surface with taper shank edge cam and the driven edge cam
Upper surface is sinusoidal ruled surface and the two form parameter is just the same, is provided with fixation in the middle part of the inner cavity of described device shell
Disk, be uniformly distributed along the circumference in the fixed disk through hole, and a sliding block, the sliding block and institute are provided in each through hole
Stating through hole is to be in sliding fit with, and the upper and lower ends of each sliding block are respectively arranged with idler wheel, two idler wheels respectively with
The contact of the upper surface roller of the lower end surface with taper shank edge cam and driven edge cam；The dither system packet
Containing supersonic generator, radio transmitting device, energy converter and amplitude transformer, the upper inductive disks of the radio transmitting device are placed in close
In the annular groove of capping circle lower end surface, it is connected by conducting wire with device external ultrasound wave producer, the sealing decorative cover is logical
The upper end for crossing screw and described device shell is fixed, and lower inductive disks are placed in the annular with taper shank edge cam middle plane
In groove；The flange of the amplitude transformer is the output end of low frequency system, passes through positioning pin and screw with the looped flexible hinge
Connection is opened between amplitude transformer and flange there are two opposite annular groove, and the upper end of the amplitude transformer is equipped with the energy converter,
The energy converter is placed in the hollow cylinder inside looped flexible hinge lower end, and the lower end of the amplitude transformer, which is equipped with, to be used for
The collet and nut of clamping cutter, the energy converter are connect by conducting wire with the lower inductive disks.
There is an annular groove in the lower end surface of the driven edge cam (15), is tightly attached to the looped flexible hinge (11)
Ring part upper end annular protrusion；It is adopted between the periphery of driven edge cam (15) and the inner headed face of adjusting nut (17)
Couple with clearance fit and by feather key (16)；Looped flexible hinge (11) upper end be threaded with cone match with
Band taper shank edge cam (2) connects, and is hollow cylinder inside lower end.The fixed disk (12) passes through screw (13) and described device
Shell (10) is connected, and the looped flexible hinge top is threaded to be connect with cone match with taper shank edge cam.
The adjusting nut is the accurate locking nut of locking rationed marketing, and top and driven edge cam clearance fit simultaneously pass through
Feather key connection, lower part and looped flexible hinge use thread connection；There are two the feather keys, and is symmetrically mounted on the driven end
The two sides of face cam.
The lower end surface with taper shank edge cam and the upper surface of the driven edge cam are to include three or four
The sinusoidal ruled surface in period, sinusoidal magnitude value 0.05-0.1mm.The lower end surface with taper shank edge cam and described driven
The upper surface of edge cam is intended to be not less than by surface hardening or nitrogen treatment or QPQ Quench-Polish-Quench technology, surface hardness
55HRC。
The looped flexible hinge is double hinge, and there are two support semi-disc, the looped flexible for placement between two rows
Hinge and support semi-disc are coupled by screw and positioning pin.The section of the looped flexible hinge can be used it is unilateral arc-shaped or
The straight beam-shaped structure of rounded corner；The looped flexible hinge the circumferencial direction of hinge fraction output some equally distributed through-holes or
Through slot.
The fixed disk includes fixed disk outer ring, fixed disk inner ring and sliding block；The fixed disk inner ring and fixed disk outer ring
By screw attachment, in the rectangular through hole that the sliding block is mounted on the fixed disk inner ring and fixed disk outer ring is surrounded, and
In clearance fit, quantity is identical as the sinusoidal cycles number of ruled surface sinusoidal on edge cam.
The slide body material is brass, and the fixed disk inner ring and fixed disk outer ring material are bearing steel.The sliding block
Include slide body, upper and lower two supporting rollern bearings, snap ring and support shaft；The supporting rollern bearing is mounted on by support shaft
On slide body.
The beneficial effects of the present invention are:
1, the present invention can be directly installed on machine tool chief axis, realize vibration output rod high-speed rotating using the rotation of main shaft
Low frequency axial vibration is generated simultaneously, high-frequency mechanical vibration signal is converted electrical signals to using radio frequency system, amplifies through amplitude transformer
After pass to cutter, realize the axial high-frequency vibration of cutter, according to processing needs, it is multiple to change low-and high-frequency vibration parameters and low-and high-frequency
Conjunction method realizes the precise high-efficiency drilling of the difficult-to-machine materials such as titanium alloy, composite material.
2, the present invention uses the vibration device based on edge cam and looped flexible hinge, and amplitude size is accurate, and vibration is steady
It is fixed reliable；Amplitude energy continuous stepless regulation, wide adaptation range.
3, dither system of the present invention is integrally combined using radio transmitting device with device compact, and structure is simple, fever
It is smaller；Additionally be able to change for different materials low-and high-frequency vibration parameters and low-and high-frequency complex method carry out efficiently, high quality and
High-precision drilling processing.
4, the configuration of the present invention is simple, compact, it is easy to loading and unloading；Efficiently solve chip breaking when difficult-to-machine material micro hole machining
Chip removal problem improves cutting fluid cooling and lubricating effect, extends cutter life and improves hole machined precision and quality, reality easy to spread
It applies, it is with good economic efficiency.
Detailed description of the invention:
Fig. 1 is the schematic cross-sectional view of low-high frequency coupled vibration drill unit；
Fig. 2 is A-A sectional structure chart in Fig. 1；
Fig. 3 is the structural schematic diagram of fixed disk in Fig. 1；
Fig. 4 is B-B sectional structure chart in Fig. 3.
Specific embodiment:
Embodiment: referring to figures 1-4, in figure, 1- blind rivet, 2- band taper shank edge cam, the upper inductive disks of 3-, 4- sealing decorative cover, 5-
Lower inductive disks, 6- clamp nut, 7- screw, 8- angular contact ball bearing, 9- spacer, 10- crust of the device, 11- looped flexible hinge,
12- fixed disk, 13- screw, 14- energy converter, the driven edge cam of 15-, 16- feather key, 17- adjusting nut, 18- support semicircle
Disk, 19- sealing ring, 20- screw, 21- spring washer, 22- screw, 23- amplitude transformer, 24- collet, 25- nut, 26- drill bit,
27- shell fixed handle, 28- shell fixed link, 29- nut cap, 30- positioning pin, 121- fixed disk outer ring, 122- fixed disk inner ring,
123- screw, 124- sliding block, 1241- slide body, 1242- back-up roller wheel bearing, 1243- snap ring, 1244- support shaft.
Low-high frequency coupled vibration drill unit includes low-frequency vibration system and dither system.Low-frequency vibration system includes
Five compositions such as crust of the device 10, band taper shank edge cam 2, driven edge cam 15, fixed disk 12 and looped flexible hinge 11
Part；Dither system includes four groups such as supersonic generator, radio transmitting device 3 and 5, energy converter 14 and amplitude transformer 23
At part.
Crust of the device is connected by shell fixed handle and shell fixed link with machine tool chief axis housing (not providing), guarantees filling
Crust of the device does not rotate when setting work.
Top with taper shank edge cam 2 is taper shank structure, can be made the different taper shank type such as BT, HSK, SK, ISO
Formula, for coupling with different types of machine tool chief axis.It is as shown in Figure 1 BT40 taper shank, taper 7:24, concrete specification ruler
It is very little to be determined according to related knife handle standard.Annular groove is provided in middle plane with taper shank edge cam 2, bottom is sinusoidal straight
Line curved surface can select the sinusoidal ruled surface with different sinusoidal cycles and amplitude according to the difference of processing object, general desirable
The sinusoidal magnitude value of 3 or 4 sinusoidal cycles, 0.05-0.1mm.The sinusoidal cycles number of sinusoidal ruled surface and the speed of mainshaft of lathe
The vibration frequency of low-frequency vibration is codetermined.
The upper surface of driven edge cam 15 is also sinusoidal ruled surface, and the lower end surface with taper shank edge cam 2 and
Sinusoidal ruled surface form parameter is just the same, and two end faces are intended to compound by surface hardening or nitrogen treatment or QPQ salt bath
Processing, surface hardness are not less than 55HRC.There is an annular groove in the lower end surface of driven edge cam 15, is tightly attached to looped flexible
The annular protrusion of the ring part upper end of hinge 11, the periphery of driven edge cam 15 and the top inner headed face of adjusting nut 17
Between be gap-matched and the feather key 16 by being symmetrically mounted on driven 15 two sides of edge cam couple.Under adjusting nut 17
Portion and looped flexible hinge 11 use thread connection.Adjusting nut 17 is the accurate locking nut of locking rationed marketing, can adjusted
Nut is adjusted to after certain position through locking pin locked, and structure is more compact.
Driven end face cam 15 can be made to follow suit corresponding rotation by rotating adjusting nut 17, so as to adjust driven
Edge cam 15 and between two on taper shank edge cam 2 sinusoidal ruled surfaces relative position or phase difference, realize luffing
The continuous adjustment of 23 low frequency amplitude of bar.Specifically, if the amplitude of sinusoidal ruled surface is A0, the circular frequency of produced low-frequency vibration
Forω, driven edge cam 15 is with the phase difference with taper shank edge cam 2φ, then the low-frequency vibration displacement A of amplitude transformer 23 can
It is given by:
A=A0cosωt- A0cos(ωt-φ) =A0cos(ωt+ψ)
WhereinψFor the phase angle of produced low-frequency vibration, tanψ= sinφ/(1-cosφ)
Work as phase differenceφWhen being 0, the low frequency amplitude of amplitude transformer 23 is 0, does not generate vibration；Work as phase differenceφIt is gradually increased, becomes
The low frequency amplitude of width bar 23 is also gradually increased；Work as phase differenceφForπWhen, the low frequency amplitude of amplitude transformer 23 reaches maximum 2A0, i.e., logical
Crossing rotation adjusting nut 17 can be with the low frequency amplitude of amplitude transformer 23 from 0 to 2A0Continuous adjustment.
As depicted in figs. 1 and 2, the upper inductive disks 3 of radio transmitting device are placed in the annular groove of sealing 4 lower end surface of decorative cover
In, it is connected by conducting wire with external ultrasound wave producer, sealing decorative cover 4 is connected and fixed by screw 7 with crust of the device 10, under
Inductive disks 5 are placed in the annular groove with 2 middle plane of taper shank edge cam；The flange and looped flexible hinge of amplitude transformer 23
11 are coupled by positioning pin 30 and screw 22, and 23 upper end of amplitude transformer is equipped with energy converter 14, and energy converter 14 is placed in looped flexible hinge
In hollow cylinder inside 11 lower end of chain, it is connected by conducting wire with lower inductive disks 5, lower end is equipped with the spring for clamping cutter
Collet 24 and nut 25.
Connect with cone match with taper shank edge cam 2 as shown in Figure 1, being threaded at the top of looped flexible hinge 11
It connects, guarantees concentric fit between the two；As depicted in figs. 1 and 2, the flange of amplitude transformer 23 and looped flexible hinge 11 pass through fixed
Position pin 30 and screw 22 couple, and are cooperated by seam allowance, ensure that the concentricity of amplitude transformer 23 and looped flexible hinge 11.Pass through
Cooperation between above several parts further ensures the rotating accuracy for the cutter that 23 front end of amplitude transformer is loaded.
As shown in Figure 1, being column part inside looped flexible hinge 11, top connect with taper shank edge cam 2, has
Great axial rigidity；It is ring part outside looped flexible hinge 11；Unilateral arc-shaped or rounded corner is used between inside and outside portion
Straight beam-shaped structure (cross sectional shape of finger ring shape flexible hinge) transition so that external ring part have in the axial direction it is certain soft
Degree.When band taper shank edge cam 2 pushes driven edge cam 15 to vibrate by sliding block 114, looped flexible hinge 11 can be mentioned
It is acted on for accurate elastic recovery.Looped flexible hinge 11 is double hinge, is placed between two rows there are two support semi-disc 18,
Looped flexible hinge 11 and support semi-disc 18 are connected into an entirety by screw 22 and positioning pin 30, and double hinge can have
Effect improves the lateral rigidity of vibration device and the precision of axial vibration.In addition, looped flexible hinge 11 can be in the circle of hinge fraction
Circumferential direction outputs some equally distributed through-holes or through slot, and to change the rigidity of flexible hinge, difference is shaken when meeting vibration machining
The requirement of dynamic frequency.
As shown in Fig. 1,3 and 4, fixed disk 12 is mounted between two edge cams, passes through screw 13 and crust of the device
10 are connected, and guarantee that fixed disk does not rotate during operation of the device.Fixed disk 12 includes fixed disk outer ring 121, fixed disk inner ring
122 and sliding block 123, fixed disk outer ring 121 and fixed disk inner ring 122 are coupled by screw 123, and sliding block 124 is mounted on fixed disk
In the square groove that outer ring 121 and fixed disk inner ring 122 are surrounded, and it is in clearance fit, can slides up and down, quantity and sine
The periodicity of ruled surface is identical, and is uniformly distributed.In vibration device work, sliding block 124 is equivalent to the driven of cam mechanism
Part, with the rotation with taper shank edge cam 2, sliding block 124 slides up and down in square groove, and then drives driven edge cam 15
And flexible hinge 11 ring part and amplitude transformer 23 vibration.Sliding block 124 includes slide body 1241, upper and lower two bearings rolling
Wheel bearing 1242, snap ring 1243 and support shaft 1244；Supporting rollern bearing 1242 is mounted on slide body by support shaft 1244
On 1241, it on the one hand can guarantee at work, to bear biggish axial force, while can also guarantee entire sliding block and upper and lower two
It is contacted between a edge cam in rolling friction, effectively reduces frictional force.The material of slide body 1241 is brass, fixed disk outer ring
121 and the material of fixed disk inner ring 122 be bearing steel, can be effectively compared in small slide block body and fixed disk under grease lubrication state
Coefficient of friction between outer ring.
As shown in Figure 1, crust of the device 10 by two identical angular contact ball bearings 8 be mounted on band taper shank end face it is convex
Outside wheel 2；It is separated between two angular contact ball bearings with spacer 9；The inner ring of angular contact ball bearing 8 is locked by clamp nut 6
Tightly, the upper surface of clamp nut 6 is provided with an annular groove；Sealing decorative cover 4 is mounted on 10 upper end of crust of the device by screw 7, together
When withstand the outer ring of angular contact ball bearing 8, sealing the lower end surface of decorative cover 4, there are one annular protrusions, with 6 lower end surface of clamp nut
Annular groove formed labyrinth seal；Sealing ring 19 is installed on 10 lower end of crust of the device by screw 20.Pass through crust of the device 10
The sealing device of upper and lower ends installation, ensure that the sealing of device internal lubrication rouge.Shell fixed handle 25 is fixed by screws in
8 side of crust of the device；Shell fixed link 28 is coupled by screw thread with shell fixed handle 27；Nut cap 29 is by being threadably mounted at shell
28 top of fixed link.There is lubricant grease channel to be connected to device inner cavity inside shell fixed handle 27 and shell fixed link 28, is used for
The supplement of lubricant grease.
The working principle of a kind of low-high frequency coupled vibration drill unit of the invention are as follows: low frequency system is 10 He of crust of the device
Fixed disk 12 maintains static, and the rotation of machine tool chief axis has on band taper shank edge cam 2 so that rotating with taper shank edge cam 2
The end face of sinusoidal straight grain region feature generates incentive action to the sliding block 124 in fixed disk 12, further by sliding block 124, driven
The coordinative role of edge cam 15 and looped flexible hinge 11 realizes that amplitude transformer 23 generates axial low frequency while high speed rotation
Vibration.Radio frequency system is to convert electrical signals to High-frequency machine by supersonic generator, radio transmitting device 3,5 and energy converter 14
Tool vibration signal passes to cutter after the amplification of amplitude transformer 23, realizes the axial high-frequency vibration of cutter.According to processing needs, change
Low-frequency vibration parameter and low-and high-frequency complex method are got higher, realizes precise high-efficiency drilling.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still falls within
In the range of technical solution of the present invention.
Claims (10)
1. a kind of low-high frequency coupled vibration drill unit, including low-frequency vibration system and dither system, it is characterized in that: described
Low-frequency vibration system includes crust of the device and with taper shank edge cam, the lower end outer surface with taper shank edge cam with it is described
The inner cavity top rotary type of crust of the device connects, and is provided with looped flexible hinge, institute in the inner cavity with taper shank edge cam
The top for stating looped flexible hinge is provided with driven edge cam, the lower end surface with taper shank edge cam and the driven end
The upper surface of face cam is sinusoidal ruled surface and the two form parameter is just the same, is set in the middle part of the inner cavity of described device shell
It is equipped with fixed disk, be uniformly distributed along the circumference through hole in the fixed disk, and a sliding block is provided in each through hole, described
Sliding block is to be in sliding fit with the through hole, and the upper and lower ends of each sliding block are respectively arranged with idler wheel, two rollings
Wheel is contacted with the upper surface roller of the lower end surface with taper shank edge cam and driven edge cam respectively；The high frequency vibrating
Dynamic system includes supersonic generator, radio transmitting device, energy converter and amplitude transformer, the upper inductive disks of the radio transmitting device
It is placed in the annular groove of sealing decorative cover lower end surface, is connected by conducting wire with device external ultrasound wave producer, it is described close
Capping circle is fixed by the upper end of screw and described device shell, and lower inductive disks are placed in flat in the middle part of the band taper shank edge cam
In the annular groove in face；The flange of the amplitude transformer is the output end of low frequency system, passes through positioning with the looped flexible hinge
Pin and screw attachment are opened between amplitude transformer and flange there are two opposite annular groove, and the upper end of the amplitude transformer is installed
Energy converter is stated, the energy converter is placed in the hollow cylinder inside looped flexible hinge lower end, the lower end of the amplitude transformer
Collet and nut for clamping cutter is installed, the energy converter is connect by conducting wire with the lower inductive disks.
2. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: the driven edge cam (15)
Lower end surface have an annular groove, be tightly attached to the annular protrusion of the ring part upper end of the looped flexible hinge (11)；From
It is gap-matched between the periphery of moved end face cam (15) and the inner headed face of adjusting nut (17) and is joined by feather key (16)
It connects；Looped flexible hinge (11) upper end, which is threaded, to be connect with cone match with taper shank edge cam (2), lower end
Inside is hollow cylinder；
The fixed disk (12) is connected by screw (13) with described device shell (10), and the looped flexible hinge top passes through
Thread connection and cone match are connect with taper shank edge cam.
3. low-high frequency coupled vibration drill unit according to claim 2, it is characterized in that: the adjusting nut is locking
The accurate locking nut of pin, top and driven edge cam clearance fit are simultaneously coupled by feather key, lower part and looped flexible hinge
Using thread connection；There are two the feather keys, and is symmetrically mounted on the two sides of the driven edge cam.
4. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: described with taper shank edge cam
Lower end surface and the upper surface of the driven edge cam are the sinusoidal ruled surface comprising three or four periods, and sinusoidal magnitude value is
0.05-0.1mm。
5. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: described with taper shank edge cam
Lower end surface and the upper surface of the driven edge cam are intended to by surface hardening or nitrogen treatment or QPQ Quench-Polish-Quench technology,
Surface hardness is not less than 55HRC.
6. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: the looped flexible hinge is double
Row hinge chain, places that there are two support semi-disc, the looped flexible hinge and support semi-disc to pass through screw and fixed between two rows
Position pin connection.
7. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: the looped flexible hinge is cut
The straight beam-shaped structure of unilateral arc-shaped or rounded corner can be used in face；The looped flexible hinge is outputed in the circumferencial direction of hinge fraction
Some equally distributed through-holes or through slot.
8. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: the fixed disk includes fixed disk
Outer ring, fixed disk inner ring and sliding block；By screw attachment, the sliding block is mounted on institute for the fixed disk inner ring and fixed disk outer ring
State fixed disk inner ring and rectangular through hole that fixed disk outer ring is surrounded in, and be in clearance fit, in quantity and edge cam
The sinusoidal cycles number of sinusoidal ruled surface is identical.
9. low-high frequency coupled vibration drill unit according to claim 8, it is characterized in that: the slide body material is Huang
Copper, the fixed disk inner ring and fixed disk outer ring material are bearing steel.
10. low-high frequency coupled vibration drill unit according to claim 1, it is characterized in that: the sliding block include slide body,
Upper and lower two supporting rollern bearings, snap ring and support shaft；The supporting rollern bearing is mounted on slide body by support shaft.
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| CN201811302002.0A CN109158630B (en) | 2018-11-02 | 2018-11-02 | High-low frequency composite vibration drilling device |
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| CN201811302002.0A CN109158630B (en) | 2018-11-02 | 2018-11-02 | High-low frequency composite vibration drilling device |
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Cited By (7)
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| CN109773594A (en) * | 2019-02-21 | 2019-05-21 | 山东理工大学 | It is a kind of to can be realized ultrasonic vibration and the compound knife handle of low-frequency vibration |
| CN110480068A (en) * | 2019-07-30 | 2019-11-22 | 西安理工大学 | Low frequency axial vibration drilling knife handle |
| CN111515423A (en) * | 2020-04-02 | 2020-08-11 | 上海工程技术大学 | Longitudinal-torsional composite ultrasonic vibration drilling machine |
| CN112610871A (en) * | 2021-01-22 | 2021-04-06 | 河南理工大学 | Self-synchronizing vibration exciter for forced thin oil lubrication |
| CN112705751A (en) * | 2020-12-21 | 2021-04-27 | 南京航空航天大学 | Self-adaptive vibration hole making device and method for robot |
| CN113145883A (en) * | 2021-04-27 | 2021-07-23 | 汇专机床有限公司 | Machine tool, cold-pressing ultrasonic knife handle, ultrasonic machining device and assembling method of ultrasonic machining device |
| CN116000649A (en) * | 2022-12-15 | 2023-04-25 | 中国机械总院集团江苏分院有限公司 | Full-coupling wireless transmission ultrasonic knife handle and ultrasonic system meeting ISO standard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109773594A (en) * | 2019-02-21 | 2019-05-21 | 山东理工大学 | It is a kind of to can be realized ultrasonic vibration and the compound knife handle of low-frequency vibration |
| CN110480068A (en) * | 2019-07-30 | 2019-11-22 | 西安理工大学 | Low frequency axial vibration drilling knife handle |
| CN111515423A (en) * | 2020-04-02 | 2020-08-11 | 上海工程技术大学 | Longitudinal-torsional composite ultrasonic vibration drilling machine |
| CN111515423B (en) * | 2020-04-02 | 2021-04-06 | 上海工程技术大学 | Longitudinal-torsional composite ultrasonic vibration drilling machine |
| CN112705751A (en) * | 2020-12-21 | 2021-04-27 | 南京航空航天大学 | Self-adaptive vibration hole making device and method for robot |
| CN112705751B (en) * | 2020-12-21 | 2022-04-22 | 南京航空航天大学 | Self-adaptive vibration hole making method for robot |
| CN112610871A (en) * | 2021-01-22 | 2021-04-06 | 河南理工大学 | Self-synchronizing vibration exciter for forced thin oil lubrication |
| CN113145883A (en) * | 2021-04-27 | 2021-07-23 | 汇专机床有限公司 | Machine tool, cold-pressing ultrasonic knife handle, ultrasonic machining device and assembling method of ultrasonic machining device |
| CN113145883B (en) * | 2021-04-27 | 2022-06-10 | 汇专机床有限公司 | Machine tool, cold-pressing ultrasonic knife handle and ultrasonic machining device |
| CN116000649A (en) * | 2022-12-15 | 2023-04-25 | 中国机械总院集团江苏分院有限公司 | Full-coupling wireless transmission ultrasonic knife handle and ultrasonic system meeting ISO standard |
| CN116000649B (en) * | 2022-12-15 | 2024-04-19 | 中国机械总院集团江苏分院有限公司 | Full-coupling wireless transmission ultrasonic knife handle and ultrasonic system meeting ISO standard |
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