CN208945205U - Mechanical vibration drilling device - Google Patents
Mechanical vibration drilling device Download PDFInfo
- Publication number
- CN208945205U CN208945205U CN201821802763.8U CN201821802763U CN208945205U CN 208945205 U CN208945205 U CN 208945205U CN 201821802763 U CN201821802763 U CN 201821802763U CN 208945205 U CN208945205 U CN 208945205U
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- China
- Prior art keywords
- edge cam
- fixed disk
- flexible hinge
- taper shank
- mechanical vibration
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Abstract
The utility model discloses a kind of mechanical vibration drilling devices, lower end outer surface with taper shank edge cam is connect with the inner cavity top rotary type of described device shell, looped flexible hinge is provided in its inner cavity, the lower end of the looped flexible hinge is provided with vibration output rod, upper part is provided with driven edge cam, the lower end surface with taper shank edge cam and the upper surface of the driven edge cam are sinusoidal ruled surface, fixed disk is provided in the middle part of the inner cavity of described device shell, be uniformly distributed along the circumference through hole in the fixed disk, a sliding block is provided in each through hole, the both ends of each sliding block are respectively arranged with idler wheel, two idler wheels are contacted with the upper surface roller of the lower end surface with taper shank edge cam and driven edge cam respectively.The utility model realizes that vibration output rod generates low frequency axial vibration while high speed rotation using the rotation of main shaft, realizes the precise high-efficiency drilling of the difficult-to-machine materials such as titanium alloy, composite material.
Description
Technical field:
The utility model relates to drilling devices in a kind of machining, more particularly to a kind of mechanical vibration drilling
Device.
Background technique:
Hole machined is one of process important in machining.With the development of science and technology, in some difficult-to-machine materials
Such as titanium alloy, stainless steel, carry out precision system hole on composite material demand it is higher and higher, especially carried out on these materials
When small deep hole drilling, since bit diameter is small, poor rigidity, intensity are low, drill bit easily fractures, not easily broken due to toughness of material height
Bits and chip removal, gun drilling temperature height etc. is so that bit wear is serious, hole machined quality is difficult to ensure.With device to hole processing quality
It is continuously improved with the requirement of efficiency, traditional drilling technique has shown that great limitation, and the vibration rapidly developed in recent years
Dynamic Drill Techniques have good technological effect in terms of small deep hole and difficult-to-machine material hole machined: vibrating drill can significantly drop
Low drill thrust, the straightness for improving boring surface quality, improving hole, reduction outlet burr etc., vibration drilling technique is increasingly shown
Its unique advantage and wide application prospect out.
So far, many scholars have carried out a large amount of research to Vibrational Drilling Technology and equipment both at home and abroad, also develop
Many devices for being used for vibration drilling.Vibration drilling device is broadly divided into two class of high-frequency vibration and low-frequency vibration.High-frequency vibration bores
Turning device mainly uses Piezoelectric Ceramic, has good drilling effect, but ultrasonic excitation device is expensive, Er Qiecun
In sometimes unstable phenomenon, especially the fever phenomenon of piezoelectric ceramics and sound system is unable to get thoroughly in the process of running
It solves, constrains its popularization in Practical Project practice.Vibration drilling being capable of effectively chip breaking, the use of raising cutting fluid
Effect, is effectively reduced cutting temperature, and the rigidity of drill bit can be improved to a certain extent, plays the effect for improving technique, Er Qiecheng
This is cheap, has obtained certain popularization and use.
In existing vibration drilling device, mainly there are the driving methods such as mechanical, fluid pressure type, electromagnetic type.It is hydraulic
The output power of formula axial vibration device is larger, load capacity is strong, can process large diameter hole and deep hole, but need to increase hydraulic pressure system
System, electrohydraulic servo device etc., higher cost.Electromagnetic type axial vibration device has structure simple, and vibration frequency adjustable range is wide,
But the power of electromagnetic exciter is smaller, is only applicable to the processing of micro hole, especially such as uses on the main shaft of rotation or knife handle,
It also needs to solve the problems, such as electrical transmission, causes that structure is complicated, higher cost.Mechanical vibration drilling apparatus structure is simple, and rigidity is good,
Long service life, but vibration device often uses eccentric wheel mechanism at present, and it is inconvenient that amplitude is adjusted, and needs to be additionally provided power
Source can not be directly installed on main shaft, it is difficult to which implementation tool or Work piece high-speed are vibrated while rotation, while these devices
In generally use spring generate elastic-restoring force, lead to the process system poor rigidity in vibration drilling, amplitude stability is poor, limitation
The application of vibrating hole technology.Existing scholar, which proposes, at present is mounted on spindle nose using main shaft rotation as power realization
The device of tool axial vibration, such as patent " a kind of vibration device for drilling " (application number 03137581.2, publication number CN
1476949A, publication date: 2004.2.25) utility model vibration device can by drill press spindle input rotary motion turn
Change the rotary motion of vibrating spindle and the compound motion of axial vibration into, but the main shaft of the device is by radial roller bearing and directly
Spool, which is held, to be mounted in middle shell, is had longer dimension chain from machine tool chief axis to device main shaft, is limited master to a certain extent
The rotating accuracy of axis, furthermore the device uses two-sided cylindrical cam, cannot achieve the quick adjustment of amplitude.A kind of patent " single-point
Incremental forming tool heads axial vibration device " (application number CN201410637206.5, publication number 106583538A, publication date:
2017.4.26) the single-point incremental forming tool heads axial vibration device of utility model drives band top by the rotation of machine tool chief axis
The tool heads of bar generate axial vibration, but the device can only implementation tool head axial vibration, can not achieve high-speed rotating same
Shi Jinhang axial vibration.
Utility model content:
The technical problem to be solved by the utility model is to overcoming the deficiencies of the prior art and provide, a kind of design is reasonable, fills
Unload the mechanical vibration drilling device that convenience, amplitude size are accurate and vibration is reliable and stable.
The technical solution of the utility model is:
A kind of mechanical vibration drilling device, including crust of the device and with taper shank edge cam, band taper shank end
The lower end outer surface of face cam is connect with the inner cavity top rotary type of described device shell, the inner cavity with taper shank edge cam
In be provided with looped flexible hinge, the lower end of the looped flexible hinge is provided with vibration output rod, the looped flexible hinge
Top be provided with driven edge cam, the upper surface of the lower end surface with taper shank edge cam and the driven edge cam
It is sinusoidal ruled surface and the two form parameter is just the same, is provided with fixed disk in the middle part of the inner cavity of described device shell, institute
The through hole that is uniformly distributed along the circumference in fixed disk is stated, a sliding block is provided in each through hole, the sliding block is passed through with described
Through-hole is to be in sliding fit with, and the both ends of each sliding block are respectively arranged with idler wheel, and two idler wheels are bored with the band respectively
The contact of the upper surface roller of the lower end surface of pommel face cam and driven edge cam.
The lower end surface of the driven edge cam is plane, is tightly attached to the upper end of the ring part of the looped flexible hinge
Face；It is gap-matched between the periphery of the driven edge cam and the inner headed face of adjusting nut and is coupled by feather key；
The looped flexible hinge top is threaded to be connect with cone match with taper shank edge cam；The fixed disk passes through
Screw is connected with described device shell, and the upper end of the vibration output rod and looped flexible hinge are joined by positioning pin and screw
It connects, lower end is equipped with collet and nut for clamping cutter.
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 utility model are:
1, the utility model can be directly installed on machine tool chief axis, realize vibration output rod in height using the rotation of main shaft
Low frequency axial vibration is generated while speed rotation, realizes the precise high-efficiency drilling of the difficult-to-machine materials such as titanium alloy, composite material.
2, the utility model uses the vibration device based on edge cam and looped flexible hinge, and amplitude size is accurate, vibration
Dynamic stability is reliable；Amplitude energy continuous stepless regulation, wide adaptation range.
3, the utility model structure is simple, compact, easy to loading and unloading；When efficiently solving difficult-to-machine material micro hole machining
Chip breaking chip removal problem improves cutting fluid cooling and lubricating effect, extends cutter life and improves hole machined precision and quality, is easy to push away
It is wide to implement, it is with good economic efficiency.
Detailed description of the invention:
Fig. 1 is the schematic cross-sectional view of mechanical vibration drilling device；
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, 3- sealing decorative cover, 4- compression spiral shell
Mother, 5- screw, 6- angular contact ball bearing, 7- spacer, 8- crust of the device, 9- angular contact ball bearing, 10- screw, 11- fixed disk,
The driven edge cam of 12-, 13- feather key, 14- screw, 15- looped flexible hinge, 16- support semi-disc, 17- sealing ring, 18-
Adjusting nut, 19- screw, 20- vibration output rod, 21- screw, 22- drill bit, 23- nut, 24- collet, 25- shell are solid
Determine handle, 26- shell fixed link, 27- nut cap, 28- positioning pin, 111- fixed disk inner ring, 112- fixed disk inner ring, 113- sliding block,
1131- slide body, 1132- supporting rollern bearing, 1133- snap ring, 1134- support shaft, 114- screw.
A kind of mechanical vibration drilling device of the utility model include crust of the device 8, band taper shank edge cam 2,
Six component parts such as driven edge cam 12, fixed disk 11, looped flexible hinge 15 and vibration output rod 20.
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 BT50 taper shank, taper 7:24, concrete specification size
It can be determined according to related knife handle standard.Bottom with taper shank edge cam 2 is sinusoidal ruled surface, not according to processing object
Together, the sinusoidal ruled surface with different sinusoidal cycles and amplitude can be selected, generally can use 3 or 4 sinusoidal cycles, 0.05-
The sinusoidal magnitude value of 0.1mm.The sinusoidal cycles number of sinusoidal ruled surface and the speed of mainshaft of lathe have codetermined the vibration of vibration device
Dynamic frequency.
The upper surface of driven edge cam 12 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.The lower end surface of driven edge cam 12 is plane, is tightly attached to looped flexible hinge 15
The upper surface of ring part is matched between the periphery of driven edge cam 12 and the top inner headed face of adjusting nut 18 using gap
The feather key 13 that merga pass is symmetrically mounted on driven 12 two sides of edge cam couples.The lower part of adjusting nut 18 and looped flexible are cut with scissors
Chain 15 uses thread connection.Adjusting nut 18 is the accurate locking nut of locking rationed marketing, can be adjusted to certain in adjusting nut
By locking pin locked behind position, structure is more compact.
Driven end face cam 12 can be made to follow suit corresponding rotation by rotating adjusting nut 18, so as to adjust driven
Edge cam 12 and between two on taper shank edge cam 2 sinusoidal ruled surfaces relative position or phase difference, realize vibration
The continuous adjustment of 20 amplitude of output rod.Specifically, if the amplitude of sinusoidal ruled surface is A0, the circular frequency of produced vibration is
ω, driven edge cam 12 are with the phase difference with taper shank edge cam 2The vibration displacement A for then vibrating output rod 20 can be by
It is given below:
Wherein ψ is the phase angle of produced vibration,
Work as phase differenceWhen being 0, the amplitude of vibration output rod 20 is 0, does not generate vibration；Work as phase differenceIt is gradually increased,
The amplitude of vibration output rod 20 is also gradually increased；Work as phase differenceWhen for π, the amplitude of vibration output rod 20 reaches maximum 2A0, i.e.,
The amplitude of vibration output rod 20 may be implemented from 0 to 2A by rotating adjusting nut 180Continuous adjustment.
It is threaded at the top of looped flexible hinge 15 and is connect with cone match with taper shank edge cam 2, guarantee two
Concentric fit between person；As depicted in figs. 1 and 2, it vibrates the upper end of output rod 20 and looped flexible hinge 15 passes through positioning pin
28 and screw 21 couple, and by seam allowance cooperate, ensure that vibrate output rod 20 and looped flexible hinge 15 concentricity.It is logical
The cooperation crossed between above several parts further ensures the rotating accuracy for the cutter that vibration 20 front end of output rod is loaded.
It is column part inside looped flexible hinge 15, top is connect with taper shank edge cam 2, is had greatly axial
Rigidity；It is ring part outside looped flexible hinge 15；The straight beam-shaped structure of unilateral arc-shaped or rounded corner is used between inside and outside portion
(cross sectional shape of finger ring shape flexible hinge) transition, so that external ring part has certain flexibility in the axial direction.When band is bored
When pommel face cam 2 pushes driven edge cam 12 to vibrate by sliding block 113, looped flexible hinge 15 is capable of providing accurate bullet
Property return action.Looped flexible hinge 15 is double hinge, and there are two support semi-disc 16, looped flexible for placement between two rows
Hinge 15 and support semi-disc 16 are connected into an entirety by screw 21 and positioning pin 28, and double hinge can effectively improve vibration
The lateral rigidity of dynamic device and the precision of axial vibration.In addition, looped flexible hinge 15 can be opened in the circumferencial direction of hinge fraction
Some equally distributed through-holes or through slot out, to change the rigidity of flexible hinge, difference vibration frequency when meeting vibration machining
It is required that.
Fixed disk 11 is mounted between two edge cams, is connected by screw 10 with crust of the device 8, is guaranteed in device
Fixed disk does not rotate when work.Fixed disk 11 includes fixed disk outer ring 111, fixed disk inner ring 112 and sliding block 113, is fixed
Disk inner ring 111 and fixed disk outer ring 113 are coupled by screw 114, and sliding block 113 is mounted on outside fixed disk inner ring 111 and fixed disk
In the square groove that circle 113 is surrounded, and it is in clearance fit, can slides up and down, the periodicity of quantity and sinusoidal ruled surface
It is identical, and be uniformly distributed.In vibration device work, sliding block 113 is equivalent to the driven member of cam mechanism, with band taper shank end face
The rotation of cam 2, sliding block 113 slide up and down in square groove, and then drive driven edge cam 12 and flexible hinge 15
The vibration of ring part and vibration output rod 20.Sliding block 113 include slide body 1131, upper and lower two supporting rollern bearings 1132,
Snap ring 1133 and support shaft 1134；Supporting rollern bearing 1132 is mounted on slide body 1131 by support shaft 1134, on the one hand
Can guarantee at work, to bear biggish axial force, at the same can also guarantee entire sliding block and upper and lower two edge cams it
Between in rolling friction contact, effectively reduce frictional force.The material of slide body 1131 is brass, fixed disk inner ring 112 and fixed disk
The material of outer ring 113 is that bearing steel can be effectively compared with rubbing between small slide block body and fixed disk Internal and external cycle under grease lubrication state
Wipe coefficient.
Crust of the device 8 is mounted on outside band taper shank edge cam 2 by two identical angular contact ball bearings 6 and 9；
It is separated between angular contact ball bearing 6 and angular contact bearing 9 with spacer 7；The inner ring of angular contact ball bearing 6 by clamp nut 4 come
Locking；Sealing decorative cover 3 is mounted on 8 upper end of crust of the device by screw 5, while withstanding the outer ring of angular contact ball bearing 6；Sealing ring
17 are installed on 8 lower end of crust of the device by screw 19.The sealing device installed by the upper and lower ends of crust of the device 8, 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 26 passes through
Screw thread couples with shell fixed handle 25；Nut cap 27 is by being threadably mounted at and 26 top of shell fixed link.25 He of shell fixed handle
There is lubricant grease channel to be connected to inside shell fixed link 26 with device inner cavity, the supplement for lubricant grease.
The working principle of a kind of mechanical vibration drilling device of the utility model are as follows: crust of the device 8 and fixed disk
11 maintain static, and the rotation of machine tool chief axis has sinusoidal straight so that rotating with taper shank edge cam 2 on band taper shank edge cam 2
The end face of line region feature generates incentive action to the sliding block 113 in fixed disk 11, further convex by sliding block 113, driven end face
The coordinative role of wheel 12 and looped flexible hinge 15 realizes that vibration output rod 20 generates axial low frequency vibration while high speed rotation
It is dynamic.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, it is made by the above technical examples according to the technical essence of the present invention it is any it is simple modification, equivalent variations with
Modification, is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of mechanical vibration drilling device, including crust of the device and with taper shank edge cam, it is characterized in that: the band
The lower end outer surface of taper shank edge cam is connect with the inner cavity top rotary type of described device shell, the band taper shank edge cam
Inner cavity in be provided with looped flexible hinge, the lower end of the looped flexible hinge is provided with vibration output rod, and 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 both ends of each sliding block are respectively arranged with idler wheel, two idler wheels respectively with it is described
The contact of the upper surface roller of lower end surface with taper shank edge cam and driven edge cam.
2. mechanical vibration drilling device according to claim 1, it is characterized in that: under the driven edge cam
End face is plane, is tightly attached to the upper surface of the ring part of the looped flexible hinge；The periphery of the driven edge cam
It is gap-matched between the inner headed face of adjusting nut and is coupled by feather key；The looped flexible hinge top passes through screw thread
Connection and cone match are connect with taper shank edge cam；The fixed disk is connected by screw with described device shell, described
By positioning pin and screw attachment, lower end is equipped with the bullet for clamping cutter for the upper end for vibrating output rod and looped flexible hinge
Spring collet and nut.
3. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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. mechanical vibration drilling device 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821802763.8U CN208945205U (en) | 2018-11-02 | 2018-11-02 | Mechanical vibration drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821802763.8U CN208945205U (en) | 2018-11-02 | 2018-11-02 | Mechanical vibration drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208945205U true CN208945205U (en) | 2019-06-07 |
Family
ID=66743923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821802763.8U Expired - Fee Related CN208945205U (en) | 2018-11-02 | 2018-11-02 | Mechanical vibration drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208945205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695414A (en) * | 2019-10-28 | 2020-01-17 | 西安石油大学 | Amplitude-adjustable low-frequency axial vibration drilling device |
-
2018
- 2018-11-02 CN CN201821802763.8U patent/CN208945205U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695414A (en) * | 2019-10-28 | 2020-01-17 | 西安石油大学 | Amplitude-adjustable low-frequency axial vibration drilling device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20211102 |