CN206643494U - Wave welding head of ultrasonic wave and welding equipment - Google Patents
Wave welding head of ultrasonic wave and welding equipment Download PDFInfo
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- CN206643494U CN206643494U CN201621482465.6U CN201621482465U CN206643494U CN 206643494 U CN206643494 U CN 206643494U CN 201621482465 U CN201621482465 U CN 201621482465U CN 206643494 U CN206643494 U CN 206643494U
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Abstract
It the utility model is related to a kind of wave welding head of ultrasonic wave.Including in ranks shape interconnection and symmetrically arranged some solder joints, the quantity of the solder joint is A, wherein 4≤A≤16.Because the quantity of solder joint is no more than 16, the quantity of solder joint is relative to be reduced, and in the case where gross pressure is reduced, the pressure obtained on each solder joint becomes more uniform constant.Therefore, identical with the weld strength at the welding position that each solder joint is corresponding on workpiece, it draws testing test result identical, ensure that the point quality of workpiece.Meanwhile solder joint on soldering tip keeps integrated symmetric, vibration frequency is consistent at each solder joint, and caused heat is identical in same time, because heat is too high solder joint will not be caused to damage, extend the service life of soldering tip.
Description
Technical field
Ultrasonic welding technique field is the utility model is related to, more particularly to a kind of wave welding head of ultrasonic wave and includes the ultrasound
The welding equipment of wave soldering head.
Background technology
Ultrasonic bonding is that the body surface of two need welding is delivered to using dither ripple, in the case of pressurization,
Make the mutual fusion that friction generates heat and is formed between molecular layer of two body surfaces.In general, when using traditional ultrasound
When bonding head welds to workpiece, the contact area between plumb joint and workpiece is big, and the pressure of application also increases, and then causes work
The discontinuity of part, influences the welding quality of workpiece, while reduces the service life of soldering tip.
Utility model content
Based on this, it is necessary to provide a kind of wave welding head of ultrasonic wave that can improve welding quality and soldering tip service life and comprising this
The welding equipment of ultrasonic bonding head.
A kind of wave welding head of ultrasonic wave, including in ranks shape interconnection and symmetrically arranged some solder joints, the number of the solder joint
Measure as A, wherein 4≤A≤16.
In one of the embodiments, the quantity of the solder joint is even number.
In one of the embodiments, the quantity of the solder joint is 16, in four rows and four row arrangements between the solder joint.
In one of the embodiments, the solder joint is cylindrical, or prism-frustum-shaped, or round table-like.
In one of the embodiments, the solder joint is in positive quadrangular frustum pyramid shaped, and the solder joint includes top surface, put down with the top surface
The bottom surface that row is set, and four sides being connected between the top surface and the bottom surface.
In one of the embodiments, the length of side of the bottom surface is 0.375mm.
In one of the embodiments, the length of side of the top surface is 0.06mm.
In one of the embodiments, the height of the solder joint is 0.128mm.
In one of the embodiments, the angle on the same solder joint between with respect to two sides is θ, wherein
θ value is 90 °.
A kind of welding equipment, including any of the above-described wave welding head of ultrasonic wave.
Wave welding head of ultrasonic wave provided by the utility model and the welding equipment comprising the wave welding head of ultrasonic wave, due to the quantity of solder joint
No more than 16, the quantity of solder joint is relative to be reduced, and in the case where gross pressure is reduced, the pressure obtained on each solder joint becomes
It is more uniform constant.Therefore, identical with the weld strength at the welding position that each solder joint is corresponding on workpiece, it draws testing examination knot
Fruit is identical, ensure that the point quality of workpiece.Meanwhile solder joint on soldering tip keeps integrated symmetric, vibration frequency one at each solder joint
Cause, caused heat is identical in same time, because heat is too high solder joint will not be caused to damage, and extend soldering tip uses the longevity
Life.
Brief description of the drawings
The planar structure schematic diagram for the wave welding head of ultrasonic wave that Fig. 1 is provided by an embodiment；
The cross-sectional structure schematic diagram for the wave welding head of ultrasonic wave that Fig. 2 is provided by an embodiment.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " interior ", " outer ", "left", "right" and
For illustrative purposes only, it is unique embodiment to be not offered as similar statement.
Refering to Fig. 1, a kind of wave welding head of ultrasonic wave 10, including some solder joints 100, connected in ranks shape between some solder joints 100
Together, the quantity of solder joint 100 is A, wherein, wherein 4≤A≤16.
The principle of ultrasonic bonding is：Ultrasonic energy is sent to by workpiece welding position by solder joint 100, at welding position
Acoustic resistance is big, therefore localized hyperthermia can be produced at welding position.Heat caused by high temperature can not be distributed in a short time, and heat is gathered in
Workpiece welding position, the contact surface between workpiece is caused to melt rapidly, after certain pressure, two workpiece can be fused into one.
After ultrasonic wave fails, pressure continues for some time (i.e. pressurize), finally makes coagulation forming at welding position, is thus formed
One firm strand, reach the purpose of spot welding.
For the workpiece of ultrasonic bonding, for example, the circuit board that copper foil is welded to mobile phone shell is first-class.In general, workpiece
The parameter such as amplitude, pressure and the action time of welding quality and soldering tip 10 have closely, when the amplitude of soldering tip 10 increases, to workpiece
Caused melting temperature increase.Welding pressure and time necessary value reasonable in design, it is impossible to it is bigger than normal and less than normal, to ensure the point of workpiece
Weld quality.
In the case where the gross area of soldering tip 10 is constant, when solder joint more than 100 on soldering tip 10, each solder joint 100 and work
Corresponding contact area is formed between part, each solder joint 100 and the summation of work piece interface product constitute soldering tip 10 and workpiece
Contact area, in general, according to the needs of actual conditions, different size of workpiece corresponds to the soldering tip 10 of different area size.
When solder joint 100 increases, the contact area increase between soldering tip 10 and workpiece, it shall be guaranteed that each solder joint 100 and work
Certain pressure is formed between part, to ensure, when the weld melting of workpiece, to cool down at melting under the effect of the pressure
Shaping.Therefore, pressure increases with the increasing for quantity of solder joint 100.When pressure is too small, the weld strength at workpiece spot welding is not
It is enough, it is impossible to meet that weld strength draws testing examination.
When the increasing number of solder joint 100 causes soldering tip 10 to increase the pressure of workpiece, each solder joint 100 can be caused to work
Pressure is uneven caused by part, i.e., solder joint 100 has point of size to the pressure of workpiece.Pressure of some of which solder joint 100 to workpiece
Power is excessive, and workpiece can produce slight crack under excessive pressure effect, so as to influence welding quality, can also shorten the use of soldering tip 10
Life-span.There is also some solder joints 100 too small to workpiece pressure, during workpiece weld is cooled and shaped, workpiece spot welding
Adhesion between punishment is inadequate, i.e. workpiece weld strength is inadequate, the same welding quality for influenceing workpiece.
In certain embodiments, the quantity of solder joint 100 is even number, such as four, eight, 12 etc..Of course, it is possible to
Understanding, the quantity of solder joint 100 can also be odd number, such as nine.Nine solder joints 100 arrange in the form of three rows and three row.
In the present embodiment, it is contemplated that the size of the overall profile machine area of copper foil, the solder joint 100 included by soldering tip 10
Quantity be 16,16 solder joints 100 in four rows and four row in the form of arrangement.In pinpoint welding procedure, soldering tip 10 is all the time in height
The state of frequency vibration, therefore, the arrangement on soldering tip 10 between each solder joint 100 keep symmetrical design, to avoid sound wave transmission
Asymmetry caused by unbalanced stress and lateral stress, when soldering tip 10 vibrates unbalanced, the higher weldering of vibration frequency
Point 100 will damage because generating heat excessive.Therefore, 16 solder joints 100 are just forming one just using four rows and the arrangement mode of four row
It is square, ensure that each solder joint 100 vibrates equilibrium well.
Refering to Fig. 1 and Fig. 2, specifically, solder joint 100 is cylindrical, or prism-frustum-shaped, or it is round table-like etc., in the present embodiment,
Solder joint 100 is in positive quadrangular frustum pyramid shaped.Solder joint 100 includes top surface 110, bottom surface 120 and four sides 130.Top surface 110 and bottom surface 120
Arranged in parallel, four sides 130 are connected between top surface 110 and bottom surface 120.Obviously, bottom surface 120 and top surface 110 are
Square, four sides 130 are the isosceles trapezoid of congruence.
In the ultrasonic bonding of copper foil, the top surface 110 of solder joint 100 contacts with copper foil, due to the coarse meeting pair of top surface 110
Copper foil produces destruction, and the top surface 110 of solder joint 100 must be more smooth, and therefore, the roughness value of top surface 110 is smaller.In soldering tip 10
In reciprocatory movement, the excessive copper foil that may result in of the pressure of soldering tip 10 damages, meanwhile, copper foil may produce under the effect of the pressure
Raw warpage, influences the welding quality between copper foil and mobile phone shell circuit board, and the circuit board for resulting even in a postwelding breaks down.
In certain embodiments, it is provided with blowhole on solder joint 100.Because ultrasonic frequency is high, energy caused by vibration
Greatly, temperature caused by welding position can be too high, due to the effect of blowhole, can be cooled down, be avoided because of temperature mistake with butt welding point 100
It is high and influence its service life.
In certain embodiments, solder joint 100 is supported using aluminum alloy materials, and hard is plated again on the top surface 110 of solder joint 100
Alloy, to ensure the wearability of top surface 110.In the present embodiment, solder joint 100 is made of titanium alloy, titanium alloy soldering tip 10
Fatigue resistance significantly increases, and has the advantages of hardness is high, and heat transfer shape is strong and toughness is good.
Specifically, the side length b that the length of side of the top surface 110 of solder joint 100 is bottom surface 120 is 0.375mm, as four rows of solder joint 100
During align, the length of side c for wherein connecting and composing soldering tip 10 from beginning to end on one side on four solder joints 100, therefore, the length of side of soldering tip 10
C is 1.5mm.The length of side a of top surface 110 is 0.06mm, and the height h of solder joint 100 is 0.128mm.In same solder joint 100, phase
It is θ to the angle between two sides 130, wherein, θ value is 90 °, i.e., relative two sides 130 are mutually perpendicular to.Certainly,
It is appreciated that changing the length of side of top surface 110 and the height of solder joint 100, can vary between two relative sides 130
Clamp, so as to obtain the structure of solder joint 100 of different appearance and sizes.
In fact, be 1.5mm × 1.5mm soldering tip 10 for overall dimensions, when changing the quantity of solder joint 100, such as
In the prior art, 25 of the quantity of solder joint 100, arranged by the way of five rows and columns between 25 solder joints 100, solder joint
The length of side of 100 top surfaces 110 is similarly 0.06mm, and still, with respect to the soldering tip 10 in the utility model, the quantity of its solder joint 100 increases
Nine are added.Therefore, its area contacted with workpiece substantially increases, it is difficult to ensures to form phase between each solder joint 100 and workpiece
Deng pressure.
In the utility model, the quantity of solder joint 100 is reduced, and the area that each solder joint 100 contacts with workpiece is constant, but
Be, the contact area of the soldering tip 10 that 16 solder joints 100 are formed and workpiece will reduction (i.e. the contact area of soldering tip 10 and workpiece depends on
In the quantity of solder joint 100).In the case where gross pressure is reduced, the pressure obtained on each solder joint 100 becomes more uniformly,
Each solder joint 100 is constant to pressure caused by workpiece.Therefore, the welding at welding position corresponding with each solder joint 100 on workpiece
Intensity is identical, and it draws testing test result identical, ensure that the point quality of workpiece.Meanwhile vibration frequency one at each solder joint 100
Cause, caused heat is identical in same time, because heat is too high solder joint 100 will not be caused to damage, extend making for soldering tip 10
Use the life-span.
In the present embodiment, the intersection between two neighboring solder joint 100 sets the bottom of fillet surface 140, i.e. solder joint 100
Fillet surface 140 is connected with face 120 between adjacent both sides, is so avoided that solder joint 100 because dither is formed in intersection
Stress concentration, so as to damage solder joint 100, further extend the service life of solder joint 100.
In the process of soldering tip 10, the blanking for soldering tip 10, the side (Computer that CNC can be used to process
Numerical control, digital control processing), by the top surface 110 of solder joint 100, bottom surface 120 and four machine-shapings of side 130.
Or it is integrally formed soldering tip 10 using mould.It will be appreciated, of course, that solder joint 100 can also be added by the way of liquid jet
Work is molded, i.e., by liquid pressing, the liquid after pressurization sprays from special nozzle, the cutting force butt welding produced using high-velocity fluid
Point 100 is processed shaping, and this method process velocity is fast, will not produce heat.
The utility model also provides a kind of welding equipment, and the welding equipment includes supersonic generator, transducer, luffing
Device and above-mentioned wave welding head of ultrasonic wave 10.Due to using above-mentioned wave welding head of ultrasonic wave 10, the welding equipment can improve the weldering to workpiece
Quality is connect, while extends the service life of equipment in itself.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
- A kind of 1. wave welding head of ultrasonic wave, it is characterised in that including in ranks shape be connected with each other and symmetrically arranged some solder joints, it is described The quantity of solder joint is A, and the quantity of the solder joint is 16, in four rows and four row arrangements between the solder joint；The solder joint is in rib Mesa-shaped.
- 2. wave welding head of ultrasonic wave according to claim 1, it is characterised in that the solder joint is in positive quadrangular frustum pyramid shaped, the solder joint Including top surface, the bottom surface being be arranged in parallel with the top surface, and four sides being connected between the top surface and the bottom surface.
- 3. wave welding head of ultrasonic wave according to claim 2, it is characterised in that the length of side of the bottom surface is 0.375mm.
- 4. wave welding head of ultrasonic wave according to claim 2, it is characterised in that the length of side of the top surface is 0.06mm.
- 5. wave welding head of ultrasonic wave according to claim 2, it is characterised in that the height of the solder joint is 0.128mm.
- 6. wave welding head of ultrasonic wave according to claim 2, it is characterised in that relative two sides on the same solder joint Angle between face is θ, and wherein θ value is 90 °.
- 7. a kind of welding equipment, it is characterised in that including the wave welding head of ultrasonic wave as any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482465.6U CN206643494U (en) | 2016-12-30 | 2016-12-30 | Wave welding head of ultrasonic wave and welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482465.6U CN206643494U (en) | 2016-12-30 | 2016-12-30 | Wave welding head of ultrasonic wave and welding equipment |
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| Publication Number | Publication Date |
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| CN206643494U true CN206643494U (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621482465.6U Active CN206643494U (en) | 2016-12-30 | 2016-12-30 | Wave welding head of ultrasonic wave and welding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735840A (en) * | 2016-12-30 | 2017-05-31 | 东莞长盈精密技术有限公司 | Wave welding head of ultrasonic wave and welding equipment |
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- 2016-12-30 CN CN201621482465.6U patent/CN206643494U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735840A (en) * | 2016-12-30 | 2017-05-31 | 东莞长盈精密技术有限公司 | Wave welding head of ultrasonic wave and welding equipment |
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