CN114226948A - Full-wavelength ultrasonic tool head and ultrasonic welding device - Google Patents
Full-wavelength ultrasonic tool head and ultrasonic welding device Download PDFInfo
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- CN114226948A CN114226948A CN202210049229.9A CN202210049229A CN114226948A CN 114226948 A CN114226948 A CN 114226948A CN 202210049229 A CN202210049229 A CN 202210049229A CN 114226948 A CN114226948 A CN 114226948A
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
- B23K20/106—Features related to sonotrodes
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- Engineering & Computer Science (AREA)
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- Pressure Welding/Diffusion-Bonding (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a full-wavelength ultrasonic tool head and an ultrasonic welding device, wherein the full-wavelength ultrasonic tool head comprises a welding body, a fixing body, a connecting body and two female rods; the welding body is arranged along the vertical direction, and one end of the welding body is provided with a welding surface; one end of the connecting body is connected with one end of the welding body; one end of the fixed body is connected with one end of the connecting body far away from the welding body; the two mother rods are symmetrically arranged on two opposite sides of the connecting body along the horizontal direction, so that the sum of the lengths of the two mother rods and the connecting body is a full wavelength; the invention not only solves the problem that the half-wavelength ultrasonic tool head cannot achieve the full-length welding effect, but also improves the overall production efficiency.
Description
Technical Field
The invention relates to the field of ultrasonic welding, in particular to a full-wavelength ultrasonic tool head and an ultrasonic welding device.
Background
The ultrasonic welding technology is that electric energy is converted into high-frequency vibration mechanical energy through an ultrasonic transducer, and then the high-frequency vibration mechanical energy is transmitted to a tool head in an ultrasonic mode through an amplitude transformer to complete welding of a workpiece. The ultrasonic welding technology is widely applied to various industries at present, and can be applied to the application of automatic production lines of new energy lithium battery industries.
At present in the automated production process, current tool head is mostly half wavelength tool head, owing to receive the length restriction of tool head face of weld, can only weld in grades, can't reach full weld's effect, and production efficiency is low.
Disclosure of Invention
The invention aims to provide a full-wavelength ultrasonic tool head and an ultrasonic welding device, and solves the problems that the tool head cannot achieve full-length welding effect and is low in production efficiency during welding.
One aspect of the invention provides a full wavelength ultrasonic tool head comprising:
the welding body is arranged along the vertical direction, and one end of the welding body is provided with a welding surface;
one end of the connecting body is connected with one end of the welding body;
one end of the fixing body is connected with one end of the connecting body, which is far away from the welding body; and
the two female rods are symmetrically arranged on two opposite sides of the connector along the horizontal direction, so that the sum of the lengths of the two female rods and the connector is a full wavelength.
Optionally, the connecting body and the two female rods are integrally formed.
Optionally, the fixing body is detachably connected with the connecting body.
Optionally, the fixing body includes a screw, a fixing portion and a clamping portion, the fixing portion and the clamping portion are detachably connected, the clamping portion is provided with a lock hole and a clamping groove, and the clamping groove is screwed with the lock hole through the screw so as to clamp and adjust the connecting body.
Optionally, the clamping portion includes a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged at an interval and enclose to form the clamping groove, and the locking hole penetrates through the first clamping block and the second clamping block.
Optionally, the first clamp splice is close to one side of fixed part is equipped with the first groove of stepping down, the second clamp splice is close to one side of fixed part is equipped with the second groove of stepping down, the fixed part is kept away from the one end of connector is equipped with and is used for connecting a plurality of internal thread holes of external pressure device, the draw-in groove has been seted up on the week side of fixed part.
Optionally, the welding body further includes a welding head, the welding head is detachably connected to the connecting body, and the welding surface is disposed at an end of the welding head away from the connecting body.
Optionally, the area of the cross section of the welding surface is smaller than the area of the cross section of the fixing body.
Optionally, the welding surface is provided with a welding insection, and the welding insection is in one of a stripe shape and a reticulate pattern shape.
Another aspect of the invention provides an ultrasonic welding apparatus comprising two horns, two transducers and a full wavelength ultrasonic tool head as claimed above, wherein one of said female horn, horns and transducers is connected in series and the other of said female horn, horns and transducers is connected in series.
Compared with the prior art, the full-wavelength ultrasonic tool head and the ultrasonic welding device provided by the embodiment of the invention have the beneficial effects that: increase ultrasonic tool head through setting up two female poles, make ultrasonic tool head's overall length be the twice of half-wave length's length, utilize the characteristic that the ultrasonic wave propagated in the medium, the biggest energy that can produce when crest and trough has improved the conversion efficiency of energy, has not only solved half-wave length ultrasonic tool head and can't reach the problem of the effect of full weld, still improves holistic production efficiency to fine compensatied the limitation that half-wave ultrasonic tool head used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings of the embodiments can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a full-wavelength ultrasonic tool head according to an embodiment of the present invention.
Fig. 2 is a schematic view of another perspective of the full wavelength ultrasonic tool head of fig. 1.
Fig. 3 is a schematic structural diagram of a full-wavelength ultrasonic tool head according to another embodiment of the present invention.
Fig. 4 is a schematic view of another perspective of the full wavelength ultrasonic tool head of fig. 3.
Fig. 5 is a schematic structural diagram of an ultrasonic welding apparatus according to an embodiment of the present invention.
The reference numbers illustrate:
10. a full wavelength ultrasonic tool head; 100. welding a body; 110. welding a surface; 130. welding a head; 200. a fixed body; 210. a screw; 220. a fixed part; 221. a threaded hole; 222. a card slot; 230. a clamping portion; 231. a lock hole; 232. a clamping groove; 233. a first clamping block; 2331. a first abdicating groove; 234. a second clamp block; 2341. a second abdicating groove; 300. a female rod; 20. an amplitude transformer; 30. a transducer; 400. a connector.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
Referring to fig. 1 and 2, a schematic diagram of a full wavelength ultrasonic tool tip 10 is shown. A full wavelength ultrasonic tool head 10 comprises a welding body 100, a fixed body 200, two female rods 300 and a connecting body 400; the welding body 100 is arranged along the vertical direction, and one end of the welding body 100 is provided with a welding surface 110; one end of the connecting body is connected with one end of the welding body; one end of the fixing body 200 is connected with one end of the connecting body 400, one end of the fixing body 200, which is far away from the connecting body 400, is connected with an external pressure device, and the external pressure device drives the welding body 100 to move along the vertical direction through the fixing body 200; the two female bars 300 are symmetrically arranged at two opposite sides of the connecting body 400 along the horizontal direction, and the sum of the lengths of the two female bars 300 and the connecting body 400 is twice the length of the half-wavelength ultrasonic tool head, so that the sum of the lengths of the two female bars 300 and the connecting body 400 is a full wavelength.
The ultrasonic welding principle is a special method for connecting the same kind of metal or different kinds of metal by using mechanical vibration energy of ultrasonic frequency. When the metal is subjected to ultrasonic welding, current is not transmitted to a workpiece to be machined, a high-temperature heat source is not applied to the workpiece, and solid-state welding is realized under the condition that a base metal is not melted. In this embodiment, specifically, when the ultrasonic assembly works, the tool head generates high-frequency vibration several tens of thousands times per second, the high-frequency vibration is transmitted to the welding body 100 through the female rod 300, then the welding body 100 transmits the vibration energy to the welding area, and the acoustic resistance at the interface between the two welds of the welding area is large, so that local high temperature can be generated; in addition, the external pressure device is used as a power source for providing a set pressure to the fixing body 200 (for the sake of clarity, the external pressure device is not shown in the drawings), and the fixing body 200 can drive the welding body 100 to press toward the workpiece to be processed in the vertical direction after receiving the pressure; the workpieces to be processed are fused into a whole under the action of high temperature and pressure. After the ultrasonic wave stops acting, the pressure is kept for several seconds, and then the welding area of the workpiece to be processed is solidified and formed, so that a firm molecular chain is formed, the purpose of welding is achieved, and the welding strength can be close to the strength of raw materials.
It should be noted that, if L1 in fig. 1 is set as the length distance of the sum of the lengths of the two female rods 300 and the connecting body 400, and the length of the half-wavelength ultrasonic tool head is set as L2, the length of the full-wavelength ultrasonic tool head 10 is set as L1 to 2 ﹡ L2, that is, the length of the full-wavelength ultrasonic tool head is one full wavelength, which can realize the maximum energy that can be generated by the tool head during the welding process, and improve the working efficiency of the tool head. It should be noted that the welding body 100, the fixing body 200, the female rod 300 and the connecting body 400 may be made of different materials according to actual requirements, and then assembled by welding or mounting structures. For example, the welding body 100 is a key part directly rubbed with a welding object, and the welding body 100 is in a long strip structure for facilitating welding, has a small volume, and can be made of alloy steel materials with high hardness and good wear resistance; the fixing body 200 and the female rod 300 can be made of common tool steel which is cheap and easy to process, so that the use requirement of the ultrasonic metal welding tool head can be met, and the manufacturing cost of the tool head can be reduced.
In one embodiment, the connecting body 400 and the two female rods 300 are integrally formed, which is advantageous for improving the use strength of the tool head.
Example two
Referring to fig. 3, in one embodiment, the fixing body 200 is detachably connected to the connecting body 400. Like this, because the tool head is formed by a plurality of parts equipment, if certain part damages, only need to change corresponding part can, need not change whole tool head, improved the availability of tool head by a wide margin to save use cost.
Referring to fig. 4, in an embodiment, the fixing body 200 includes a screw 210, a fixing portion 220 and a clamping portion 230, the fixing portion 220 is detachably connected to the clamping portion 230, the clamping portion 230 is provided with a locking hole 231 and a clamping groove 232, and the clamping groove 232 is screwed with the locking hole 231 through the screw 210 to clamp and adjust the connecting body 400. Further, the clamping portion 230 includes a first clamping block 233 and a second clamping block 234, the first clamping block 233 and the second clamping block 234 are spaced apart from each other and enclose to form a clamping groove 232, and the locking hole 231 penetrates through the first clamping block 233 and the second clamping block 234. During installation, an operator only needs to insert the screw 210 into the locking hole 231, rotate the screw 210, and adjust the distance between the first clamping block 233 and the second clamping block 234, so as to adjust the size of the clamping groove 232, thereby achieving clamping installation of the connector 400. So set up, not only make things convenient for the installation and the dismantlement of fixed body 200 and connector 400, can also simplify processing structure, reduced the processing cost, be favorable to the production of product.
Referring to fig. 4, in an embodiment, a first receding groove 2331 is formed in a side of the first clamping block 233 close to the fixing portion 220, and a second receding groove 2341 is formed in a side of the second clamping block 234 close to the fixing portion 220. The fixing portion 220 has a plurality of internal screw holes 221 for connecting an external pressure device at an end thereof away from the connecting body 400, and a fastening groove 222 for fastening the external pressure device is formed on the periphery of the fixing portion 220. Through the arrangement of the first and second abdicating grooves 2331 and 2341, a space is reserved for the deformation of the first and second clamping blocks 233 and 234, so that the adjusting space of the clamping groove 232 is increased, and the applicability of the fixing body 200 is improved. The fixing body 200 is prevented from moving by fixedly connecting the screw hole 221 with an external pressure device; in addition, the clamping groove 222 is arranged, so that the clamping groove can be clamped and fixed with an external pressure device, the normal output of pressure is ensured, and the normal use of the fixing body 200 is ensured.
Referring to fig. 4, in an embodiment, the soldering body 100 further includes a soldering head 130, the soldering head 130, and the soldering surface 110 is disposed on an end of the soldering head 130 away from the connecting body 400. Thus, welding head 130 is a main consumable, and when welding head 130 is too worn to be repaired, only welding head 130 needs to be replaced, which is also beneficial to saving use cost.
Further, in an embodiment, the area of the cross section of the welding face 110 is smaller than the area of the cross section of the fixing body 200. When the area of the cross section of the fixing body 200 is far greater than the area of the cross section of the welding surface 110, that is, the fixing body 200 serves as a large blocking piece, the ultrasonic energy can be effectively prevented from being transmitted to the outside, so that the ultrasonic energy is mainly transmitted in the direction of the welding surface 110, the welding temperature of the welding surface is favorably improved, and the welding efficiency and quality are ensured.
Further, in an embodiment, the welding surface 110 is provided with a welding insection, and the welding insection has a shape of one of a stripe shape and a reticulate pattern shape. It should be noted that the shape of the welding insection includes, but is not limited to, stripe shape, mesh shape, etc., for example, straight stripe shape, cross-hatched circle shape, straight dot shape, and is not limited herein.
EXAMPLE III
Referring to fig. 5, a schematic structural diagram of an ultrasonic welding apparatus is shown. The ultrasonic welding device comprises two amplitude transformer rods 20, two transducers 30 and the full-wavelength ultrasonic tool head 10, wherein one female rod 300, the amplitude transformer rods 20 and the transducers 30 are sequentially connected, and the other female rod 300, the amplitude transformer rods 20 and the transducers 30 are sequentially connected.
Compared with the prior art, the full-wavelength ultrasonic tool head and the ultrasonic welding device provided by the embodiment of the invention have the beneficial effects that: increase supersound instrument head through setting up two connectors, make the overall length of supersound instrument head be the twice of half-wave length's length, utilize the characteristic that the ultrasonic wave propagated in the medium, the biggest energy that can produce when crest and trough has improved the conversion efficiency of energy, has not only solved the problem that half-wave length supersound instrument head can't reach the effect of full weld, still improves holistic production efficiency to fine compensatied the limitation that half-wave length supersound instrument head used.
All possible combinations of the above-described features are described, but the combination of features should not be considered as being inconsistent with each other.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A full wavelength ultrasonic tool head, comprising:
the welding body is arranged along the vertical direction, and one end of the welding body is provided with a welding surface;
one end of the connecting body is connected with one end of the welding body;
one end of the fixing body is connected with one end of the connecting body, which is far away from the welding body; and
the two female rods are symmetrically arranged on two opposite sides of the connector along the horizontal direction, so that the sum of the lengths of the two female rods and the connector is a full wavelength.
2. The full wavelength ultrasonic tool head according to claim 1, wherein the connector and the two female rods are integrally formed.
3. The full wavelength ultrasonic tool head of claim 1, wherein the fixture is removably attached to the connector.
4. The full-wavelength ultrasonic tool head according to claim 3, wherein the fixing body comprises a screw, a fixing portion and a clamping portion, the fixing portion and the clamping portion are detachably connected, the clamping portion is provided with a locking hole and a clamping groove, and the clamping groove is in screw connection with the locking hole through the screw so as to clamp and adjust the connecting body.
5. The full wavelength ultrasonic tool head of claim 4, wherein the clamping portion comprises a first clamping block and a second clamping block, the first clamping block and the second clamping block are arranged at intervals and enclose to form the clamping groove, and the locking hole penetrates through the first clamping block and the second clamping block.
6. The full-wavelength ultrasonic tool head according to claim 5, wherein a first abdicating groove is formed on one side of the first clamping block close to the fixing portion, a second abdicating groove is formed on one side of the second clamping block close to the fixing portion, a plurality of internal thread holes for connecting the external pressure device are formed at one end of the fixing portion away from the connecting body, and a clamping groove is formed on the peripheral side of the fixing portion.
7. The full wavelength ultrasonic tool head of claim 4, wherein the bonding body further comprises a bonding head, the bonding surface being disposed on an end of the bonding head distal from the bonding body.
8. The full wavelength ultrasonic tool head of claim 7, wherein the area of the cross-section of the bonding face is smaller than the area of the cross-section of the fixation body.
9. The full wavelength ultrasonic tool head of claim 8, wherein the welding surface has a welding insection, and the welding insection has one of a stripe shape and a cross-hatched shape.
10. An ultrasonic welding apparatus comprising two horns, two transducers and a full wavelength ultrasonic tool head as claimed in any one of claims 1 to 9, wherein one of said female horn, horn and transducer is connected in series and the other of said female horn, horn and transducer is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210049229.9A CN114226948A (en) | 2022-01-17 | 2022-01-17 | Full-wavelength ultrasonic tool head and ultrasonic welding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210049229.9A CN114226948A (en) | 2022-01-17 | 2022-01-17 | Full-wavelength ultrasonic tool head and ultrasonic welding device |
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