CN207256375U - Titanium alloy ultrasonic cutting knife - Google Patents
Titanium alloy ultrasonic cutting knife Download PDFInfo
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- CN207256375U CN207256375U CN201721185488.5U CN201721185488U CN207256375U CN 207256375 U CN207256375 U CN 207256375U CN 201721185488 U CN201721185488 U CN 201721185488U CN 207256375 U CN207256375 U CN 207256375U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 127
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 53
- 230000007704 transition Effects 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000001934 delay Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 12
- 238000002604 ultrasonography Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
本实用新型涉及一种钛合金超声波切割刀，包括刀背、刀身和刃口，所述刀背设有刀背槽，所述刀身设有中间槽，一个刀身上的中间槽共有三个长度，分别为A长度中间槽、B长度中间槽、C长度中间槽，其中，A长度中间槽有两个，位于刀身中间，C长度中间槽有两个，分别位于刀身的两端，B长度中间槽有两个，分别位于A长度中间槽与C长度中间槽之间，A长度中间槽、B长度中间槽、C长度中间槽长度递减。与现有技术相比，本实用新型超声波切割刀通过槽结构的分布，有效地改善了刃口出的位移均匀化程度，减小因刃口各部分的位移差异而形成的刃口应力，延缓刀具刃口崩刃和豁口的产生时间，提从而升到刀具的疲劳寿命，起到降低橡胶轮胎生产成本的作用。
The utility model relates to a titanium alloy ultrasonic cutting knife, which comprises a knife back, a knife body and a cutting edge. The knife back is provided with a knife back groove, and the knife body is provided with a middle groove. The middle groove on a knife body has three lengths, respectively A Length middle groove, B length middle groove, C length middle groove, among them, there are two middle grooves of A length, which are located in the middle of the blade body, two middle grooves of C length, respectively located at both ends of the blade body, and two middle grooves of B length , respectively located between the A-length middle groove and the C-length middle groove, and the lengths of the A-length middle groove, the B-length middle groove, and the C-length middle groove decrease in length. Compared with the prior art, the distribution of the ultrasonic cutting knife of the utility model effectively improves the uniformity of the displacement of the cutting edge through the distribution of the groove structure, reduces the edge stress formed by the displacement difference of each part of the cutting edge, and delays The generation time of tool edge chipping and notch can improve the fatigue life of the tool and play a role in reducing the production cost of rubber tires.
Description
Technical field
Ultrasonic cutting field is the utility model is related to, more particularly, to a kind of titanium alloy ultrasonic cutting knife.
Background technology
Ultrasonic cutting is that ultrasonic generator produces vibration, and cutter head is passed to after transducer is by Amplitude amplification,
The telescopic high-frequency collision of cutter edge and cut material produces substantial amounts of heat, makes to be cut material and melt to be formed to process to make
With.
The ultrasonic generator frequency of Ultrasonic machining process need to be consistent with the intrinsic frequency of tool tip material and can be formed
Resonance, driving cutter head vibration.Therefore, the length in the stretching vibration direction of usual cutter head and ultrasonic wave are in tool tip material
The integral multiple of propagation half-wavelength cutter edge can be driven to produce maximum amplitude, electric energy is efficiently converted into mechanical energy.Knife
Head material need to have appropriate matching relationship with frequency.During ultrasonic cutting, generally using single exciting source, in cutting side
To transmission extensional vibration, while need to avoid the lateral vibration on remaining direction, therefore stringent control is needed for ultrasonic cut process
The structure of cutter head processed, usually opens vibration isolation groove to reduce lateral vibration influence in ultrasound knife blade and knife spine.
The domestic ultrasonic cutting cut-off knife part used in rubber tyre cutting production is produced by foreign countries, but due to the country
The difference of cover elastomeric material component prescription, the import ultrasonic cutting knife used in domestic rubber tyre producing line are producing
During generate some problems, cause the service life of cutter shorter.For example, the gap of ultrasonic cutting edge, collapsing
Sword, the abrasion of turned and cutting edge cut etc., cause cutter premature failure and scrap.
Therefore, it is intended that by the optimization design of structure, one is provided under conditions of applying working condition and process requirements are not changed
Kind ultrasonic cutting knife, can solve the problems, such as the tipping and gap in existing ultrasonic cutting rubber tyre production process,
Cutting-tool's used life is improved, so as to reduce the production cost of rubber tyre, lifts the market competitiveness.
Utility model content
The purpose of this utility model is to provide a kind of titanium alloy ultrasonic cutting knife, it can improve cutting edge in cutting process
Partial Displacements Distribution uniformity, reduces the shear stress of the weak part of cutting edge, makes the failure modes such as tipping and gap into one
Step improves, and improves cutter whole service life.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of titanium alloy ultrasonic cutting knife, including knife spine, blade and cutting edge, the knife spine are equipped with knife spine groove, the knife
Body is equipped with medial launder.In order to improve the lateral vibration influence of titanium alloy ultrasonic cutting knife, exciting device installation knife spine and
Knife spine groove and medial launder are opened up on cutter hub, number is 6, is uniformly distributed.Medial launder is close to cutting edge, for titanium alloy ultrasound
Distribution of force of the ripple cutter in cutting process has material impact, it is necessary to the length of stringent control flume, by like normal state
Distribution form arranges medial launder, and from blade centre, A mid-lengths groove gradually successively decreases to both sides C mid-lengths slot length, in C length
Between groove and A mid-lengths slot length difference be not more than 5mm, cutter stress distribution can be effectively improved, lifting cutter life.
Connected between the blade and knife spine by orthodrome transition.
The titanium alloy ultrasonic cutting knife overall dimensions are：The length for cutting telescopic direction is 69~71mm, and width is
170~190mm, knife spine thickness are 20~30mm, and blade thickness is 5mm, and arc radius is 25~30mm.
The blade thickness is 4~6mm, with knife spine tangent arc transition.
The angle of wedge is 4~6 ° at the cutting edge, and both sides are symmetrical.
The number of the knife spine groove and medial launder is 6.
Medial launder on one blade shares three length, is respectively in A mid-lengths groove, B mid-lengths groove, C length
Between groove, wherein, A mid-length grooves have two, and among blade, C mid-length grooves have two, respectively positioned at the two of blade
End, B mid-length grooves have two, respectively between A mid-lengths groove and C mid-length grooves, in A mid-lengths groove, B length
Between groove, C mid-length slot lengths successively decrease, i.e. gradually successively decrease to slot length among both sides from middle two medial launders, distribution of lengths
In like normal distribution sample.
The length difference of the A mid-lengths groove and C mid-length grooves is less than or equal to 5mm.
The material of the titanium alloy ultrasonic cutting knife is TC4 titanium alloy materials.
The ultrasonic frequency range that the titanium alloy ultrasonic cutting knife uses is 30~40kHz.
Preferably, the length of titanium alloy ultrasonic cutting knife cutting telescopic direction about takes what ultrasonic wave was propagated in titanium alloy
Half-wavelength 69mm or so.It is highly preferred that length is 69.7mm.
Preferably, titanium alloy ultrasonic cutting knife knife spine thickness will according to titanium alloy market plate specification and transducer installation
Ask selection, ensure the convenient mechanical processing of titanium alloy ultrasonic cutting knife and with exciting device can immovable fitting, be typically chosen in
25.4mm。
Preferably, titanium alloy ultrasonic cutting knife width is related to the cutting production line used, but should avoid wide draw
Lifting device vibration stationarity is poor, and lateral vibration is excessive, avoids width too small again, and cutting efficiency is low, maximum width 190mm.
Preferably, blade needs appropriate thickness and arc section and forms guiding role to cutting material, and blade also needs
With certain rigidity, usual blade parallel-segment thickness is 5mm, using orthodrome and knife spine transition, arc radius for 25~
30mm, it is highly preferred that arc section radius is 27mm.
Preferably, the cut portion of titanium alloy ultrasonic cutting knife is sharp cutting edge, and angle is typically chosen in 5 °, both sides pair
Claim, cutter both sides can be facilitated to use.
Preferably, in order to improve the lateral vibration influence of titanium alloy ultrasonic cutting knife, in the knife spine of exciting device installation
With knife spine groove and medial launder are opened up on cutter hub, number is 6, is uniformly distributed.
Preferably, C mid-lengths groove is shorter 2mm than B mid-length slot lengths, and B mid-lengths groove is than A mid-length slot lengths
Short 3mm.
Preferably, the frequency of use scope of titanium alloy ultrasonic cutting knife needs telescopic direction length integrated therewith related, more
Preferably, titanium alloy ultrasonic frequency is adaptive in the range of 38100~38200Hz.
The utility model it is targeted be rubber tyre production line application, but titanium alloy according to the present utility model ultrasound
Ripple cutter can be used for cutting other materials.
During the work time, ultrasound knife is connected with transducer, by ultrasonic generator by the electric signal output of specific frequency
Transducer is passed to, transducer is made of piezoelectric ceramics, can convert electrical signals to the vibration signal of specific frequency, realize energy
Conversion.Mechanical oscillation first by transducer transmit these vibrations to knife spine in transmittance process, by the diminution of blade sectional area,
Amplitude gradually strengthens, and the larger vibration of displacement is formed at cutting edge, is cut so as to be formed to machined material.But vibration was transmitted
Cheng Zhonghui is in all directions transmission, and cutting is the vibration in order to ensure cutter in direction of feed, it is therefore desirable in structure design
The middle barrier for considering lateral vibration, to avoid energy loss and Cutting Tool Damage, therefore is provided with knife spine groove and medial launder in knife spine and blade.
Compared with the ultrasonic cutting knife of the prior art, the utility model ultrasonic cutting knife by the distribution of slot structure,
The displacement homogenization degree that cutting edge goes out is effectively improved, reducing the cutting edge formed by the displacement difference of cutting edge each several part should
Power, delays the generation time of cutting edge roundness tipping and gap, carries so as to be raised to the fatigue life of cutter, plays reduction rubber tyre
The effect of production cost.
Brief description of the drawings
Fig. 1 is a kind of known main structure diagram of ultrasonic cutting knife；
Fig. 2 is a kind of known side structure schematic view of ultrasonic cutting knife；
Fig. 3 is a kind of known overlooking the structure diagram of ultrasonic cutting knife.
Fig. 4 is the main structure diagram of the utility model titanium alloy ultrasonic cutting knife；
Fig. 5 is the side structure schematic view of the utility model titanium alloy ultrasonic cutting knife；
Fig. 6 is the overlooking the structure diagram of the utility model titanium alloy ultrasonic cutting knife.
Figure label：100 be known ultrasonic cutting knife, 101 be knife spine, 102 be blade, 103 be cutting edge, 104 be
Between the first groove of groove, 105 be the second groove of medial launder, 106 be the 3rd groove of medial launder, 107 be knife spine groove, 108 be connection screw thread；200
For titanium alloy ultrasonic cutting knife, 201 it is knife spine, 202 is blade, 203 is cutting edge, 204 is the first groove of medial launder, 205 is
Between the second groove of groove, 206 be the 3rd groove of medial launder, 207 be knife spine groove, 208 be connection screw thread.
It will be understood by those of skill in the art that structure in attached drawing is just for the sake of showing for the sake of simple and clear
, and be not necessarily drawn to scale.Such as in attached drawing some structures exemplary dimensions may it is opposite with other structures into
Row scaling, in order to help to improve the understanding to the utility model embodiment.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Comparative example 1
It is a kind of construction three-view diagram of known ultrasonic cutting knife structure 100 with reference to figure 1- Fig. 3,101 be knife spine, 102
It is cutting edge for blade, 103,104 be the first groove of medial launder, 105 be the second groove of medial launder, 106 be the 3rd groove of medial launder, 107 is
Knife spine groove, 108 are connection screw thread.Wherein the first groove of medial launder 104, the second groove of medial launder 105 and the 3rd groove 106 of medial launder are rulers
Very little identical medial launder, and the distance of each medial launder end close to cutting edge 103 is 7.7mm.
With reference to figure 1- Fig. 3, it is known that the failure mode of ultrasonic cutting knife 100 usually collapsed at the first groove of medial launder 104
Sword or cutting edge 103 form gap between the first groove of medial launder 104.
Vibration shape simulation analysis are carried out to known 100 structure of ultrasonic cutting knife, when the first groove of medial launder 104, medial launder the
When two grooves 105, the length of the 3rd groove 106 of medial launder are consistent, the maximum displacement at cutting edge 103 has serious asynchronism,
During dither, shear stress can be formed at 103 each position of cutting edge, cause the irregular deformation of cutting edge 103, and caused
Turned and fatigue rupture is formed during long-time service and produces gap.
Embodiment 1
A kind of titanium alloy ultrasonic cutting knife, as shown in Figure 4,5, 6, including knife spine 201, blade 202 and cutting edge 203, institute
State knife spine 201 and be equipped with knife spine groove, the blade 202 is equipped with medial launder.204 it is the first groove of medial launder, 205 is medial launder second
Groove, 206 be the 3rd groove of medial launder, 207 be knife spine groove, 208 be connection screw thread.Wherein the first groove of medial launder 204, medial launder second
Groove 205 and the 3rd groove 206 of medial launder are of same size, and length is stepped up, and different per groove increasing degree, the first groove of medial launder
Length difference is less than 5mm between 204 and the 3rd groove 206 of medial launder.206 end of the 3rd groove medial launder of medial launder is away from cutting edge 203
Distance is 7.7mm, and 204 distance of the end away from cutting edge 203 of the first groove of medial launder medial launder is 12.7mm.
By increasing titanium alloy ultrasonic cutting knife 200 close to 204 end of the first groove of medial launder of edge to cutting edge
The distance between 203, strengthen the intensity at cutting edge, and improve Vibration Condition to lift the service life of cutter.
In the present embodiment, the material of the titanium alloy ultrasonic cutting knife is TC4 titanium alloy materials.The titanium alloy ultrasound
The ultrasonic frequency range that ripple cutter use is 30~40kHz.
The utility model it is targeted be rubber tyre production line application, but titanium alloy according to the present utility model ultrasound
Ripple cutter can be used for cutting other materials.
Vibration shape simulation analysis are carried out to the present embodiment titanium alloy ultrasonic cutting knife, when the first groove of medial launder 204, medial launder
When the length of the 3rd groove 206 of second groove 205 and medial launder has the rational regularity of distribution, the maximum displacement at cutting edge 203 is not
Synchronism is greatly improved, and during dither, the shear stress at 203 each position of cutting edge significantly reduces, cutting edge 203
Deformation extent effectively reduce, and be extended cutter life.
It should be noted that the length difference of the medial launder of titanium alloy ultrasonic cutting knife described in the utility model needs to control
In appropriate scope, slot length is long among titanium alloy ultrasonic cutting knife can cause intensity at cutting edge relatively low, easily shake
Brisement is formed under dynamic impact.But the middle slot length of titanium alloy ultrasonic cutting knife is too short, then exciting dress is connected in the middle part of knife spine
The dither of blade and cutting edge can not be driven by putting, and after reason is that medial launder shortens, the resonance characteristics of structure itself occurs
Change, it is necessary to change Position of Vibrating and vibration source number achievees the purpose that resonance.But it is likely to result in Cutting tool installation manner unstability and shakes more
The problems such as source can not be synchronous.Therefore the medial launder Spreading requirements of the utility model need to be strictly observed, medial launder end away from cutting edge away from
From for 5~13mm.
As shown in Figure 4,5, 6, in the present embodiment preferably, 200 length of titanium alloy ultrasonic cutting knife is 69.7mm, width
For 190mm, 201 thickness of knife spine is 25.4mm, and 202 thickness of blade is 5mm, and the angle of wedge is 5 ° at cutting edge 203, and both sides are symmetrical.It is above-mentioned
Structure size can be with conditions of the cutting production line for not changing ultrasonic cutting knife 100 known to comparative example 1 uses frock
Installed and used, but overall structure size and improved structure design be suitable for different producing lines and in the requires of the utility model scope
Inside it is adjusted.
The first groove of medial launder 204 of titanium alloy ultrasonic cutting knife 200 is 12.7mm apart from cutting edge 203, medial launder second
Groove 205 is 10.7mm apart from cutting edge 203, and the 3rd groove 206 of medial launder is 7.7mm apart from cutting edge 203.Cutting edge 203 is in width
The vibration displacement difference in portion is smaller, is subject to shear stress smaller.Therefore in the middle part of width, medial launder reduces amplitude smaller, and energy
Farthest completely cutting off lateral vibration influences.
Compared with the known ultrasonic cutting knife 100 shown in comparative example 1, in embodiment according to the present utility model such as figure
4th, in the titanium alloy ultrasonic cutting knife 200 shown in 5,6, titanium alloy ultrasonic cutting knife can be cut not changing known ultrasonic wave
Meet frock requirement under conditions of cutter production line frock and achieve the purpose that to extend the service life, while provide rational entirety again
Size range, to meet the needs of other frock types.And by improving the structure distribution of medial launder, hence it is evident that improve cutting edge
Intensity and distribution of amplitudes situation, the adjustment to cutting parameter leaves the optimization space of bigger, so as to be conducive to lifting cutting matter
Amount and cutting efficiency.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously easily can make these embodiments various modifications, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721185488.5U CN207256375U (en) | 2017-09-15 | 2017-09-15 | Titanium alloy ultrasonic cutting knife |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721185488.5U CN207256375U (en) | 2017-09-15 | 2017-09-15 | Titanium alloy ultrasonic cutting knife |
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| CN207256375U true CN207256375U (en) | 2018-04-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330657A (en) * | 2020-03-06 | 2020-06-26 | 上海材料研究所 | Micro-fluidic device based on phased array ultrasonic transducer |
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- 2017-09-15 CN CN201721185488.5U patent/CN207256375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330657A (en) * | 2020-03-06 | 2020-06-26 | 上海材料研究所 | Micro-fluidic device based on phased array ultrasonic transducer |
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Address after: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee after: Shanghai Material Research Institute Co.,Ltd. Address before: 200437 No. 99, Handan Road, Shanghai, Hongkou District Patentee before: SHANGHAI Research Institute OF MATERIALS |