CN214024052U

CN214024052U - Ultrasonic metal welding device with resonance transmission clamp mechanism

Info

Publication number: CN214024052U
Application number: CN202022296562.9U
Authority: CN
Inventors: 刘祥国
Original assignee: Weihai Guosheng Ultrasonic Technology Co ltd
Current assignee: Weihai Guosheng Ultrasonic Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-08-24
Anticipated expiration: 2030-10-15

Abstract

An ultrasonic metal welding apparatus having a resonant drive clamp mechanism, comprising: resonance transmission anchor clamps: the upper end of the resonance transmission clamp is provided with a fixing body, and the lower end of the resonance transmission clamp is provided with a welding head clamp. Clamping the amplitude transformer: one end of the clamping amplitude transformer is provided with a vibration output end surface, the other end of the clamping amplitude transformer is provided with a vibration input end surface, and the vibration output end surface and the vibration input end surface are perpendicular to the axis of the clamping amplitude transformer. A welding head: the upper end of the welding head is provided with a positioning surface and a positioning groove, the lower end of the welding head is provided with a welding spot, the side surface of the welding head is provided with two mutually parallel vibration coupling surfaces, the vibration coupling surfaces are parallel to the axis of the welding head, and the positioning groove vertically penetrates through the two vibration coupling surfaces. And a counterweight; clamping bolt, ultrasonic transducer.

Description

Ultrasonic metal welding device with resonance transmission clamp mechanism

Technical Field

The utility model relates to an ultrasonic bonding field especially relates to an ultrasonic metal welding device with resonance transmission fixture mechanism.

Background

In the field of welding, ultrasonic metal welding is a process between cold and friction welding. During the welding, welding pressure passes through the bonding tool solder joint vertical action on the welding surface, high frequency vibration's shearing force is being superposed simultaneously, when the shearing force surpassed material elasticity limit, work piece contact surface part regional begins to take place to slide, this shearing force is in welding process with the frequency of several tens of thousands of times per second constantly changes the direction, the filth on work piece surface is broken and clear away, pure metal surface begins to be the contact of multiple spot form, along with high frequency vibration's continuation, pure metal area of contact constantly enlarges, until the extension is whole weld zone, meanwhile take place atomic diffusion on the contact surface, metal recrystallization produces fine grain organizational structure and present the characteristic of metal cold deformation.

The conventional ultrasonic metal welding device is improved from an ultrasonic plastic welding device, and is mainly characterized in that welding spots of a welding head of the ultrasonic plastic welding device are distributed on the end surface of the welding head, the application direction of welding pressure is parallel to the axis of the welding head, the welding spots of the welding head of the improved ultrasonic metal welding device are distributed on the side surface of the welding head, and the application direction of the welding pressure is vertical to the axis of the welding head. As shown in figure 1, the ultrasonic metal welding device improved from the ultrasonic plastic welding device has the advantages that the central axis of the action of welding pressure can deviate from the welding point position of the welding head, when a workpiece is welded, the welding point position of the welding head generates welding reaction, the welding reaction can generate welding reaction torque due to the deviation, the welding reaction torque can cause deflection deformation of structural components such as the welding head of the ultrasonic metal welding device, the deflection deformation can directly cause the reduction of welding precision and welding efficiency, the deformation can seriously cause the damage of the welding workpiece, and therefore the welding precision and the welding efficiency of the ultrasonic metal welding device in the conventional technology have limitations.

Conventional art ultrasonic metal welding set is in order to reduce the influence of welding reaction moment to welding, and overall structure design all is more complicated heavy, and the cost is higher, has many drawbacks in addition, if: the welding station space is narrow, and some workpieces cannot be welded due to the fact that the workpieces cannot be kept away; the volume is large, and the automatic matching is difficult; the process of disassembling and replacing the welding head is complicated, and after the welding head is replaced, the welding point position of the welding head can be changed, and the welding head needs to be corrected and adjusted again.

In addition, the welding head of the ultrasonic metal welding device is an easily-consumed product, in order to ensure the service life of the welding head, the material of the welding head needs to adopt more expensive superhard and super-wear-resistant metal materials, the welding head of the ultrasonic metal welding device in the conventional technology is the same as the welding head of the ultrasonic plastic welding device, the welding head works in a longitudinal vibration mode, the vibration direction is consistent with the axis of the welding head, the longitudinal vibration mode has longer vibration wavelength than the transverse vibration mode, the overall dimension of the longitudinal vibration mode welding head is correspondingly longer, meanwhile, in order to reduce the welding reaction force moment, the induced deflection is deformed, the longitudinal vibration mode welding head is also thicker, and the longitudinal vibration mode welding head is more waste. Therefore, the welding head of the ultrasonic metal welding device in the conventional technology has the disadvantages of large volume, high material consumption, complex manufacturing process and high cost.

SUMMERY OF THE UTILITY MODEL

In order to solve conventional technology ultrasonic metal welding device's drawback, the utility model discloses break away from the prior art structure, provided an ultrasonic metal welding device with resonance transmission fixture mechanism.

The utility model discloses can realize through following technical scheme:

the technical problem of utility model can be solved through following technical scheme:

an ultrasonic metal welding apparatus having a resonant drive clamp mechanism, comprising: resonance transmission anchor clamps: the upper end of the resonance transmission clamp is provided with a fixing body, and the lower end of the resonance transmission clamp is provided with a welding head clamp.

Clamping the amplitude transformer: and one end of the clamping amplitude transformer is provided with a vibration output end surface, the other end of the clamping amplitude transformer is provided with a vibration input end surface, and the vibration output end surface and the vibration input end surface are perpendicular to the axis of the clamping amplitude transformer.

A welding head: the welding head is characterized in that a positioning surface and a positioning groove are arranged at the upper end of the welding head, welding spots are arranged at the lower end of the welding head, two vibration coupling surfaces which are parallel to each other are arranged on the side surface of the welding head, the vibration coupling surfaces are parallel to the axis of the welding head, and the positioning groove vertically penetrates through the two vibration coupling surfaces.

And a counterweight; clamping bolt, ultrasonic transducer.

The clamping amplitude transformer and the clamping bolt are matched with a welding head clamp to fixedly clamp the welding head, and the clamping bolt is matched with the positioning groove of the welding head to limit the position of the welding head; the resonance transmission clamp is clamped on the balancing weight through the fixing body, the welding head is fixedly clamped at the lower end of the resonance transmission clamp through a welding head clamp, and the ultrasonic transducer is connected to the vibration input end face of the clamping amplitude transformer; the axis of the resonance transmission fixture is coaxial with the axis of the welding head, and the axis of the clamping amplitude transformer is perpendicular to the axis of the resonance transmission fixture.

Further, the resonance transmission fixture works in a transverse vibration mode, the vibration direction is perpendicular to the axis of the resonance transmission fixture, the resonance frequency of the resonance transmission fixture is close to the resonance frequency of the welding head, the length of the resonance transmission fixture is an integral multiple of a half wavelength or a half wavelength, the resonance transmission fixture is used for fixing and clamping the welding head and coaxially transmitting welding pressure to a welding spot of the welding head, and during vibration, the resonance transmission clamp and the welding head keep common resonance to reduce the vibration loss caused by the fixed and clamped welding head to the minimum.

Further, the clamping amplitude transformer works in a longitudinal vibration mode, the vibration direction is parallel to the axis of the clamping amplitude transformer, the length is half wavelength or integral multiple of half wavelength, and the clamping amplitude transformer is used for being matched with a welding head clamp of the resonance transmission clamp to fixedly clamp the welding head and simultaneously transmit ultrasonic vibration.

Further, the welding head works in a transverse vibration mode, the vibration direction is perpendicular to the axis of the welding head, the length is half wavelength or integral multiple of half wavelength, the welding head receives ultrasonic vibration and welding acting force, and the ultrasonic vibration and the welding acting force act on a welding workpiece.

Further, the self resonant frequency of the balancing weight deviates from the working frequency of the resonant transmission fixture, the balancing weight cannot resonate with the resonant transmission fixture during working, and the balancing weight is used for fixing and clamping the resonant transmission fixture, can also be used for fixing and installing the position of the ultrasonic metal welding device and can also be used for moving the connecting position of the guide part and the welding pressure driving device.

Further, the fixed body of resonance transmission anchor clamps is established the upper end of resonance transmission anchor clamps is connected the vibration node position of violently shaking of resonance transmission anchor clamps, the clamping is in inside the balancing weight, resonance transmission anchor clamps the fixed body handle resonance transmission anchor clamps with the balancing weight is connected as an organic wholely, is used for connecting welding pressure drive arrangement, coaxial leading-in welding pressure.

Further, a welding head clamp of the resonance transmission clamp is arranged at the lower end of the resonance transmission clamp, and the welding head clamp is a symmetrical mechanism.

The welding head clamp comprises two inner clamping surfaces, two outer clamping surfaces, a limiting surface and a fixing hole, the two inner clamping surfaces and the two outer clamping surfaces are parallel to each other and are parallel to the axis of the resonance transmission clamp, and the fixing hole vertically penetrates through the inner clamping surfaces and the outer clamping surfaces; when the welding head is fixedly clamped by the welding head fixture, two clamping amplitude transformers are needed, two outer clamping surfaces of the welding head fixture are respectively connected with the vibration output end surfaces of the two clamping amplitude transformers, two vibration coupling surfaces of the welding head are respectively connected with two inner clamping surfaces of the welding head fixture, the positioning surface of the welding head is in close fit with the limiting surface of the welding head fixture, the positioning groove of the welding head corresponds to the fixing hole of the welding head fixture, two ends of a clamping bolt penetrating through the fixing hole and the positioning groove of the welding head fixture are respectively connected with the vibration output ends of the two clamping amplitude transformers, when the clamping bolt is screwed, the two clamping amplitude transformers can clamp the two outer clamping surfaces of the welding head fixture, and the clamping force is transmitted to the two inner clamping surfaces of the welding head fixture, thereby fixedly clamping the welding head between the two inner clamping surfaces.

Further, a welding head clamp of the resonance transmission clamp is arranged at the lower end of the resonance transmission clamp, when the welding head clamp is an asymmetric mechanism, the welding head clamp consists of a clamping surface, a limiting surface and a fixing hole thread hole, the clamping surface is parallel to the axis of the resonance transmission clamp, the fixing thread hole vertically penetrates through the clamping surface, a positioning groove of the welding head corresponds to the fixing thread hole of the welding head clamp, when the welding head clamp fixedly clamps the welding head, one vibration coupling surface of the welding head is connected with the vibration output end surface of the clamping amplitude transformer, the other vibration coupling surface of the welding head is connected with the clamping surface of the welding head clamp, one end of a clamping bolt is connected in the fixing thread hole of the welding head clamp, the other end of the clamping bolt penetrates through the positioning groove of the welding head and is connected with the vibration output end of the clamping amplitude transformer, when the clamping bolt is screwed, clamping force can be generated between the vibration output end surface of the clamping amplitude transformer and the clamping surface of the welding head clamp, so that the welding head between the two surfaces is fixedly clamped.

Further, the limiting surface of the welding head fixture is matched with the positioning surface of the welding head, the axial position of the welding head is limited, and welding pressure is coaxially transmitted to the welding head.

Furthermore, the resonant frequency of the resonant transmission clamp, the welding head, the clamping amplitude transformer and the ultrasonic transducer is close, and the resonant transmission clamp, the welding head, the clamping amplitude transformer and the ultrasonic transducer can achieve common resonance in working.

Compared with the prior art, the beneficial effect that this patent reaches is:

the utility model discloses during the device welding, welding pressure does not have welding reaction torque through the coaxial transmission of resonance driving clamp for the bonding tool solder joint, has eliminated welding reaction torque's influence to the welding completely, and welding efficiency is high, and welding precision is good.

The utility model discloses during the device welding, resonance transmission anchor clamps keep resonating jointly with the bonding tool, the at utmost has reduced the loss of welding energy, and welding efficiency is high.

The utility model discloses the bonding tool work of device is under the mode of violently shaking, and the structure is short and small, simultaneously because of the utility model discloses there is not welding reaction moment in the device, need not consider welding reaction moment's influence, and very list that can do is thin, and the consumptive material is very low. In addition, welding points of the welding head of the device are distributed at the axial end face position, the structure is simple, and the processing technology is simple.

The utility model discloses be equipped with special welding head anchor clamps on the device resonance transmission anchor clamps, but the clamping bonding tool of direct fixation, the bonding tool replacement process is simple and convenient.

The utility model discloses be equipped with positioning mechanism on the welding head anchor clamps on the device resonance transmission anchor clamps, the bonding tool exchanges repeatability height, changes bonding tool back, and bonding tool solder joint position can not change, and equipment need not proofread and correct again.

The utility model discloses there is not welding reaction moment in the device, has just also saved conventional ultrasonic metal welding device and has been used for reducing welding reaction moment complex construction device, and the structure is small and exquisite, and low cost is fit for the automation equipment of arranging, easily promotes.

Drawings

FIG. 1 is a conventional art ultrasonic metal welding apparatus;

FIG. 2 is a schematic cross-sectional view showing the overall structure of an embodiment 1 of the ultrasonic metal welding apparatus according to the present invention;

FIG. 3 is an exploded view of the entire structure of embodiment 1 of the ultrasonic metal welding apparatus of the present invention;

FIG. 4 is a schematic structural sectional view of a resonant transmission fixture in an embodiment 1 of the ultrasonic metal welding apparatus of the present invention;

FIG. 5 is a schematic sectional view of a welding head structure of an embodiment 1 of an ultrasonic metal welding device of the present invention;

FIG. 6 is a schematic sectional view 2 of a welding head structure of an embodiment 1 of the ultrasonic metal welding device of the present invention;

FIG. 7 is a schematic sectional view showing the overall structure of embodiment 2 of the ultrasonic metal welding apparatus of the present invention;

FIG. 8 is an exploded view of the entire structure of embodiment 2 of the ultrasonic metal welding apparatus of the present invention;

FIG. 9 is a schematic sectional view of a resonant driving clamp according to embodiment 2 of the ultrasonic metal welding apparatus of the present invention;

FIG. 10 is a schematic sectional view 1 of a welding head structure of an embodiment 2 of an ultrasonic metal welding device according to the present invention;

FIG. 11 is a schematic sectional view of a welding head structure of an embodiment 2 of an ultrasonic metal welding device of the present invention, which is shown in FIG. 2;

FIG. 12 is a schematic sectional view showing the overall structure of embodiment 3 of the ultrasonic metal welding apparatus of the present invention;

FIG. 13 is an exploded view of the entire structure of embodiment 3 of the ultrasonic metal welding apparatus of the present invention;

FIG. 14 is a schematic sectional view of the resonant driving clamp of embodiment 3 of the ultrasonic metal welding apparatus of the present invention;

FIG. 15 is a schematic sectional view of a welding head structure of an embodiment 3 of an ultrasonic metal welding device of the present invention, which is shown in FIG. 1;

FIG. 16 is a schematic sectional view of a welding head structure of an embodiment 3 of an ultrasonic metal welding device of the present invention, which is shown in FIG. 2;

fig. 17 is a schematic view of a typical application structure of the structure of embodiment 3 of the ultrasonic metal welding apparatus according to the present invention.

Reference numerals in the figures

The device comprises a resonance transmission clamp 1, a fixing body 1a, an inner clamping surface 1b, an outer clamping surface 1c, a fixing hole 1d, a limiting surface 1e, a clamping surface 1f, a connecting wire hole 1g, a fixing wire hole 1h, a balancing weight 2, a clamping amplitude transformer 3, a vibration output end surface 3a, a vibration input end surface 3b, a clamping bolt 4, a welding head 5, a positioning surface 5a, a positioning groove 5b, a vibration coupling surface 5c, a welding spot 5d, an ultrasonic transducer 6, a welding pressure driving device 7, a motion guide component 8 and a fixing base plate 9.

Detailed Description

The present invention will be further described below based on preferred embodiments with reference to the accompanying drawings.

In addition, for convenience of understanding, various components on the drawings are enlarged, thickened or reduced in thickness, but the protection scope of the invention is not limited by the method.

The singular forms "a", "an", and "the" include plural referents and vice versa

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the products of the present invention are usually placed when using, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, in the description of the present invention, the terms first, second, etc. are used herein to distinguish between different elements, but these should not be limited by the order of manufacture or construed to indicate or imply relative importance, and their names may differ between the detailed description of the invention and the claims.

The words used in this specification are words of description used in describing embodiments of the invention, but are not intended to limit the invention. It is also to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "connected," and "connected" are intended to be open-ended, i.e., may be fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The above-mentioned meaning belonging to the present invention is specifically understood by those skilled in the art.

An ultrasonic metal welding apparatus having a resonant drive clamp mechanism, comprising: the device comprises a resonant transmission clamp 1, a balancing weight 2, a clamping amplitude transformer 3, a clamping bolt 4, a welding head 5 and an ultrasonic transducer 6.

Specifically, the upper end of the resonance transmission clamp 1 is provided with a fixed body 1a, and the lower end is provided with a welding head clamp;

specifically, one end of the clamping amplitude transformer 3 is provided with a vibration output end surface 3a, the other end of the clamping amplitude transformer is provided with a vibration input end surface 3b, and the vibration output end surface 3a and the vibration input end surface 3b are perpendicular to the axis of the clamping amplitude transformer 3;

specifically, the upper end of the welding head 5 is provided with a positioning surface 5a and a positioning groove 5b, the lower end of the welding head is provided with a welding spot 5d, the side surface of the welding head is provided with two vibration coupling surfaces 5c which are parallel to each other, the vibration coupling surfaces 5c are parallel to the axis of the welding head 5, and the positioning groove 5b vertically penetrates through the two vibration coupling surfaces 5 c;

at the moment, the clamping amplitude transformer 3 and the clamping bolt 4 are matched with a welding head clamp to fixedly clamp the welding head 5, and the clamping bolt 4 is matched with the positioning groove 5b of the welding head 5 to limit the position of the welding head 5;

at the moment, the resonant transmission clamp 1 is clamped on the counterweight block 2 through the fixing body 1a, the welding head 5 is fixedly clamped at the lower end of the resonant transmission clamp 1 through a welding head clamp, and the ultrasonic transducer 6 is connected to the vibration input end surface 3b of the clamping amplitude transformer 3.

At the moment, the axis of the resonant transmission clamp 1 is coaxial with the axis of the welding head 5, and the axis of the clamping amplitude transformer 3 is perpendicular to the axis of the resonant transmission clamp 1.

Resonance transmission anchor clamps 1 work is under the transverse vibration mode, and the vibration direction with resonance transmission anchor clamps 1's axis is perpendicular, resonance transmission anchor clamps 1 self resonant frequency with bonding tool 5 resonant frequency is close, and length is half wavelength or half wavelength's integral multiple, is used for fixed centre gripping bonding tool 5 to coaxial transmission welding pressure gives the solder joint of bonding tool 5, during the vibration, resonance transmission presss from both sides 1, with bonding tool 5 keeps resonance jointly, fixes the centre gripping the vibration loss that bonding tool 5 leads to reduces to minimumly.

The clamping amplitude transformer 3 works in a longitudinal vibration mode, the vibration direction is parallel to the axis of the clamping amplitude transformer 3, the length is half wavelength or integral multiple of half wavelength, and the clamping amplitude transformer is used for being matched with a welding head clamp of the resonance transmission clamp 1 to fixedly clamp the welding head 5 and simultaneously transmit ultrasonic vibration.

Preferably, the number of the clamping horns 3 is configured to be one or two.

The welding head 5 works in a transverse vibration mode, the vibration direction is vertical to the axis of the welding head 5, the length is half wavelength or integral multiple of half wavelength, and the welding head 5 receives ultrasonic vibration and welding acting force and acts the ultrasonic vibration and the welding acting force on a welding workpiece.

Preferably, the positioning groove 5b of the welding head 5 is of a closed structure or an open structure, the welding head 5 adopting the structure of the closed positioning groove 5b has better structural strength, and the welding head 5 adopting the positioning groove 5b of the open structure is more convenient to replace.

The resonance frequency of the balancing weight 2 deviates from the working frequency of the resonance transmission clamp 1, the balancing weight cannot resonate with the resonance transmission clamp 1 during working, and the balancing weight 2 is used for fixing and clamping the resonance transmission clamp 1, can also be used for the fixed mounting position of the whole device, can also be used for the connecting position of the movement guide part 8 and can also be used for the connecting position of the welding pressure driving device 7.

The fixed body 1a of resonance transmission anchor clamps 1 establishes the upper end of resonance transmission anchor clamps 1 is connected the vibration node position of transversely shaking of resonance transmission anchor clamps 1, the clamping is in inside balancing weight 2, resonance transmission anchor clamps 1 the fixed body 1a handle resonance transmission anchor clamps 1 with balancing weight 2 connects as an organic wholely, is used for connecting welding pressure drive arrangement 7, coaxial leading-in welding pressure.

And a welding head clamp of the resonance transmission clamp 1 is arranged at the lower end of the resonance transmission clamp 1.

Preferably, the welding head clamp can be divided into two structural forms of a symmetrical structure and an asymmetrical structure, and both the structural forms are used for fixedly clamping the welding head 5.

When the welding head clamp is a symmetrical mechanism, the welding head clamp consists of two inner clamping surfaces 1b, two outer clamping surfaces 1c, a limiting surface 1e and a fixing hole 1d, the two inner clamping surfaces 1b and the two outer clamping surfaces 1c are parallel to each other and are parallel to the axis of the resonance transmission clamp 1, and the fixing hole 1d vertically crosses the inner clamping surfaces 1b and the outer clamping surfaces 1 c; when the welding head fixture fixedly clamps the welding head 5, two clamping amplitude-change rods 3 are needed, two outer clamping surfaces 1c of the welding head fixture are respectively connected with the vibration output end surfaces 3a of the two clamping amplitude-change rods 3, two vibration coupling surfaces 5c of the welding head 5 are respectively connected with two inner clamping surfaces 1b of the welding head fixture, the positioning surface 5a and the positioning surface 5a of the welding head 5 are in close fit with the limiting surface 1e of the welding head fixture, the positioning groove 5b of the welding head 5 corresponds to the fixing hole 1d of the welding head fixture, two ends of the clamping bolt 4 after penetrating through the fixing hole 1d and the positioning groove 5b of the welding head fixture are respectively connected with the vibration output ends 3a of the two clamping amplitude-change rods 3, and when the clamping bolt 4 is screwed, the two clamping horns 3 clamp the two outer clamping surfaces 1c of the welding head clamp, and the clamping force is transmitted to the two inner clamping surfaces 1b of the welding head clamp, so that the welding head 5 between the two inner clamping surfaces 1b is fixedly clamped.

When the welding head clamp is an asymmetric mechanism, the welding head clamp consists of a clamping surface 1f, a clamping surface limiting surface 1e and a clamping surface fixing hole wire 1h, the clamping surface 1f is parallel to the axis of the resonant transmission clamp 1, the fixing wire hole 1h vertically penetrates through the clamping surface 1f, a positioning groove 5b of the welding head 5 corresponds to the fixing wire hole 1h of the welding head clamp, when the welding head clamp fixedly clamps the welding head 5, one vibration coupling surface 5c of the welding head 5 is connected with the vibration output end surface 3a of the clamping amplitude-changing rod 3, the other vibration coupling surface 5c of the welding head 5 is connected with the clamping surface 1f of the welding head clamp, one end of the clamping bolt 4 is connected in the fixing wire hole 1h of the welding head clamp, the other end of the clamping bolt passes through the positioning groove 5b of the welding head 5 and is connected with the vibration output end 3a of the clamping amplitude-changing rod 3, when the clamping bolt 4 is tightened, a clamping force is generated between the vibration output end surface 3a of the clamping horn 3 and the clamping surface 1f of the welding head fixture, so that the welding head 5 between the two surfaces is fixedly clamped.

The resonant frequency of the resonant transmission clamp 1, the welding head 5, the clamping amplitude transformer 3 and the ultrasonic transducer 6 is close, and the resonant transmission clamp can achieve common resonance in working.

Hereinafter, various specific embodiments of the ultrasonic metal welding apparatus having the resonant driving jig mechanism will be described by way of examples.

Example 1

Referring to fig. 2 to 6, the present embodiment provides an ultrasonic metal welding apparatus with a resonant transmission clamping mechanism, including: the device comprises a resonant transmission clamp 1, a balancing weight 2, a clamping amplitude transformer 3, a clamping bolt 4, a welding head 5 and an ultrasonic transducer 6.

Preferably, in this example, two clamping horns 3 are provided.

Preferably, in this example, the positioning slot 5b of the welding head 5 is of an open structure, so that the welding head 5 can be replaced easily.

In this example, the positioning surface 5a of the welding head 4 is disposed at the upper end of the vibration coupling surface 5c of the welding head 5, and the limiting surface 1e of the welding head fixture is matched with the positioning surface 5a of the welding head 5 to limit the axial position of the welding head 5 and coaxially transmit the welding pressure to the welding head 5.

The resonance frequency of the balancing weight 2 deviates from the working frequency of the resonance transmission clamp 1, and the balancing weight cannot resonate with the resonance transmission clamp 1 during working.

Preferably, in this example, the resonance transmission fixture 1 is in motion, and the counterweight 2 is used for fixing and clamping the resonance transmission fixture 1 and is also connected with the welding motion guide part 6, so as to guide the motion of the resonance transmission fixture 1.

The fixed body 1a of resonance transmission anchor clamps 1 is established the upper end of resonance transmission anchor clamps 1 is connected resonance transmission anchor clamps 1's the vibration node position that transversely shakes, the clamping is in inside balancing weight 2, resonance transmission anchor clamps 1 the fixed body 1a handle resonance transmission anchor clamps 1 with balancing weight 2 is connected as an organic wholely, fixed body 1a upper end be equipped with resonance transmission anchor clamps 1 is coaxial connect wire hole 1g for connect welding pressure drive arrangement 7, coaxial leading-in welding pressure.

Preferably, in this embodiment, the structural form of the welding head fixture belongs to a symmetrical mechanism, and is used for fixedly clamping the welding head 5.

Specifically, the welding head fixture comprises two inner clamping surfaces 1b, two outer clamping surfaces 1c, a limiting surface 1e and a fixing hole 1d, the two inner clamping surfaces 1b and the two outer clamping surfaces 1c are parallel to each other and are parallel to the axis of the resonance transmission fixture 1, the limiting surface 1e is arranged at the upper ends of the two inner clamping surfaces 1b, and the fixing hole 1d vertically penetrates through the inner clamping surfaces 1b and the outer clamping surfaces 1 c; when the welding head fixture is used for fixedly clamping the welding head 5, two clamping amplitude-change rods 3 are needed, two outer clamping surfaces 1c of the welding head fixture are respectively connected with the vibration output end surfaces 3a of the two clamping amplitude-change rods 3, two vibration coupling surfaces 5c of the welding head 5 are respectively connected with two inner clamping surfaces 1b of the welding head fixture, the positioning surface 5a of the welding head 5 is in close fit with the limiting surface 1e of the welding head fixture, the positioning groove 5b of the welding head 5 corresponds to the fixing hole 1d of the welding head fixture, the clamping bolt 4 penetrates through the fixing hole 1d of the welding head fixture and the positioning groove 5b of the welding head, two ends of the clamping amplitude-change rods 3 are respectively connected with the vibration output ends 3a of the two clamping amplitude-change rods 3, when the clamping bolt 4 is screwed, the two clamping amplitude-change rods 3 can clamp the two outer clamping surfaces 1c of the welding head fixture, the clamping force is transmitted to the two inner clamping surfaces 1b of the weld head holder, so that the weld head 5 is fixedly clamped between the two inner clamping surfaces 1 b.

Preferably, in this example, the number of the ultrasonic transducers 6 is one, the ultrasonic transducers 6 are connected to the vibration input end surface 3b of the clamping horn 3, and the vibration input end surface 3b of the other clamping horn 3 is left empty, so that during welding, the ultrasonic vibration generated by the ultrasonic transducers 6 passes through the clamping horn 3 to the outer clamping surface 1c of the welding head fixture, then to the inner clamping surface 1b of the welding head fixture, then to the vibration coupling surface 5c of the welding head 5, then to the welding spot 5d of the welding head 5, and finally acts on the workpiece to be welded.

Preferably, in this example, the resonant transmission fixture 1 is coaxially connected to the welding pressure driving device 7 through the connecting wire hole 1g of the fixing body 1a, and during welding, the welding pressure is coaxially transmitted to the welding head 5 through the resonant transmission fixture 1, then reaches the welding point of the welding head 5, and finally acts on the workpiece to be welded.

During welding, the resonance transmission clamp 1, the welding head 5, the clamping amplitude transformer 3 and the ultrasonic transducer 6 have close resonance frequencies, so that a common resonance state can be achieved, and efficient welding is realized.

Example 2

Preferably, in this example, two clamping horns 3 are provided. The lengths of the two clamping horns 3 differ by an odd multiple of half a wavelength.

In this example, the positioning surface 5a of the welding head 4 is disposed at the lower end of the vibration coupling surface 5c of the welding head 5, and the limiting surface 1e of the welding head fixture is matched with the positioning surface 5a of the welding head 5 to limit the axial position of the welding head 5 and coaxially transmit the welding pressure to the welding head 5.

Preferably, in this example, the resonant driving clamp 1 is stationary, and the counterweight 2 is fixed to and clamps the resonant driving clamp 1 and is also fixed to the fixing substrate 9.

The fixing body 1a of the resonance transmission clamp 1 is arranged at the upper end of the resonance transmission clamp 1, is connected at the transverse vibration node position of the resonance transmission clamp 1, and is clamped inside the balancing weight 2, so that the resonance transmission clamp 1 and the balancing weight 2 are connected into a whole.

Specifically, the welding head fixture comprises two inner clamping surfaces 1b, two outer clamping surfaces 1c, a limiting surface 1e and a fixing hole 1d, the two inner clamping surfaces 1b and the two outer clamping surfaces 1c are parallel to each other and are parallel to the axis of the resonance transmission fixture 1, the limiting surface 1e is arranged at the lower ends of the two inner clamping surfaces 1b, and the fixing hole 1d vertically penetrates through the inner clamping surfaces 1b and the outer clamping surfaces 1 c; when the welding head fixture is used for fixedly clamping the welding head 5, two clamping amplitude-change rods 3 are needed, two outer clamping surfaces 1c of the welding head fixture are respectively connected with the vibration output end surfaces 3a of the two clamping amplitude-change rods 3, two vibration coupling surfaces 5c of the welding head 5 are respectively connected with two inner clamping surfaces 1b of the welding head fixture, the positioning surface 5a of the welding head 5 is in close fit with the limiting surface 1e of the welding head fixture, the positioning groove 5b of the welding head 5 corresponds to the fixing hole 1d of the welding head fixture, the clamping bolt 4 penetrates through the fixing hole 1d of the welding head fixture and the positioning groove 5b of the welding head, two ends of the clamping amplitude-change rods 3 are respectively connected with the vibration output ends 3a of the two clamping amplitude-change rods 3, when the clamping bolt 4 is screwed, the two clamping amplitude-change rods 3 can clamp the two outer clamping surfaces 1c of the welding head fixture, the clamping force is transmitted to the two inner clamping surfaces 1b of the weld head holder, so that the weld head 5 is fixedly clamped between the two inner clamping surfaces 1 b.

Preferably, in this example, the number of the ultrasonic transducers 6 is two. The vibration input end surfaces 3b of the two clamping horns 3 are respectively connected with two ultrasonic transducers 6, and during welding, ultrasonic vibration generated by the ultrasonic transducers 6 passes through the clamping horns 3 to the outer clamping surface 1c of the welding head fixture, then to the inner clamping surface 1b of the welding head fixture, then to the vibration coupling surface 5c of the welding head 5, then to the welding points 5d of the welding head 5, and finally acts on a workpiece to be welded.

Preferably, in this embodiment, the resonant transmission fixture 1 is fixed on the fixed substrate 9 through a counterweight, and during welding, the supporting force of the fixed substrate 9 is used as a welding pressure, coaxially transmitted to the welding head through the resonant transmission fixture, and then transmitted to the welding point of the welding head, and finally applied to the workpiece to be welded.

This example is intended to illustrate the diversity of welding configurations that can be achieved using the techniques of the present invention.

Example 3

Preferably, in this example, the number of the clamping horns 3 is one.

Preferably, in this example, the positioning slot 5b of the welding head 5 is of a closed configuration.

In this example, the 5a positioning surface of the welding head 5 is disposed at the upper end of the vibration coupling surface 5c of the welding head 5, and the limiting surface 1e of the welding head fixture is matched with the positioning surface 5a of the welding head 5 to limit the axial position of the welding head 5 and transmit the welding pressure to the welding head 5 coaxially.

Preferably, in the present embodiment, the weld head clamp is configured as an asymmetric mechanism for fixedly clamping the weld head 5.

Specifically, the welding head fixture is composed of the clamping surface 1f, a limiting surface 1e and a fixing hole wire 1h, the clamping surface 1f is parallel to the axis of the resonance transmission fixture 1, the fixing wire hole 1h vertically crosses the clamping surface 1f, a positioning groove 5b of the welding head 5 corresponds to the fixing wire hole 1h of the welding head fixture, when the welding head fixture fixedly clamps the welding head 5, one vibration coupling surface 5c of the welding head 5 is connected with the vibration output end surface 3a of the clamping amplitude transformer 3, the other vibration coupling surface 5c of the welding head 5 is connected with the clamping surface 1f of the welding head fixture, one end of the clamping bolt 4 is connected in the fixing wire hole 1h of the welding head fixture, the other end passes through the positioning groove 5b of the welding head 5 and is connected with the vibration output end 3a of the clamping amplitude transformer 3, when the clamping bolt 4 is tightened, a clamping force is generated between the vibration output end surface 3a of the clamping horn 3 and the clamping surface 1f of the welding head fixture, so that the welding head 5 between the two surfaces is fixedly clamped.

Preferably, in this example, the number of the ultrasonic transducers 6 is one, the ultrasonic transducers 6 are directly connected to the vibration coupling surface 5c of the welding head 5, and during welding, the ultrasonic vibration generated by the ultrasonic transducers 6 is transmitted to the welding point 5d of the welding head 5 through the vibration coupling surface 5c of the welding head 5, and finally acts on the workpiece to be welded.

Fig. 13 is a typical application of the present example for illustrating the applicability of the present invention.

The detailed description of the embodiments of the present invention has been presented, and it will be apparent to those skilled in the art that the present invention can be modified and modified without departing from the principles of the present invention, and the modifications and modifications also belong to the protection scope of the claims of the present invention.

Claims

1. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism, comprising:

resonant transmission clamp (1): the upper end of the resonance transmission clamp (1) is provided with a fixed body (1a), and the lower end is provided with a welding head clamp;

clamping horn (3): one end of the clamping amplitude transformer (3) is provided with a vibration output end face (3a), the other end of the clamping amplitude transformer is provided with a vibration input end face (3b), and the vibration output end face (3a) and the vibration input end face (3b) are perpendicular to the axis of the clamping amplitude transformer (3);

a welding head (5): the upper end of the welding head (5) is provided with a positioning surface (5a) and a positioning groove (5b), the lower end of the welding head is provided with a welding spot (5d), the side surface of the welding head is provided with two vibration coupling surfaces (5c) which are parallel to each other, the vibration coupling surfaces (5c) are parallel to the axis of the welding head (5), and the positioning groove (5b) vertically penetrates through the two vibration coupling surfaces (5 c);

and a counterweight (2); a clamping bolt (4) and an ultrasonic transducer (6);

the clamping amplitude transformer (3) and the clamping bolt (4) are matched with a welding head clamp to fixedly clamp the welding head (5), and the clamping bolt (4) is matched with the positioning groove (5b) of the welding head (5) to limit the position of the welding head (5);

the resonance transmission clamp (1) is clamped on the balancing weight (2) through the fixing body (1a), the welding head (5) is fixedly clamped at the lower end of the resonance transmission clamp (1) through the welding head clamp, and the ultrasonic transducer (6) is connected to the vibration input end face (3b) of the clamping amplitude transformer (3);

the axis of the resonance transmission clamp (1) is coaxial with the axis of the welding head (5), and the axis of the clamping amplitude transformer (3) is vertical to the axis of the resonance transmission clamp (1).

2. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

resonance transmission anchor clamps (1) work is under the transverse vibration mode, the vibration direction with the axis of resonance transmission anchor clamps (1) is perpendicular, resonance transmission anchor clamps (1) self resonant frequency with bonding tool (5) resonant frequency is close, and length is half wavelength or half wavelength's integral multiple, is used for fixed centre gripping bonding tool (5) to coaxial transmission welding pressure gives the solder joint of bonding tool (5), during the vibration, resonance transmission anchor clamps (1), with bonding tool (5) keep resonance jointly, and the fixed centre gripping vibration loss that bonding tool (5) led to falls to minimumly.

3. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

the clamping amplitude transformer (3) works in a longitudinal vibration mode, the vibration direction is parallel to the axis of the clamping amplitude transformer (3), the length is half wavelength or integral multiple of half wavelength, and the clamping amplitude transformer is used for being matched with a welding head clamp of the resonance transmission clamp (1) to fixedly clamp the welding head (5) and simultaneously transmit ultrasonic vibration.

4. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

the welding head (5) works in a transverse vibration mode, the vibration direction is vertical to the axis of the welding head (5), the length is half wavelength or integral multiple of half wavelength, and the welding head (5) receives ultrasonic vibration and welding acting force and acts the ultrasonic vibration and the welding acting force on a welding workpiece.

5. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

the resonance frequency of the balancing weight (2) deviates from the working frequency of the resonance transmission clamp (1), the balancing weight cannot resonate with the resonance transmission clamp (1) during working, and the balancing weight (2) is used for fixing and clamping the resonance transmission clamp (1), can also be used for fixing and mounting the ultrasonic metal welding device and can also be used for connecting the motion guide part (8) and the welding pressure driving device (7).

6. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 5,

establish fixed body (1a) of resonance transmission anchor clamps (1) the upper end of resonance transmission anchor clamps (1) is connected the vibration node position that transversely shakes of resonance transmission anchor clamps (1), the clamping is in inside balancing weight (2), resonance transmission anchor clamps (1) fixed body (1a) handle resonance transmission anchor clamps (1) with balancing weight (2) are connected as an organic wholely, are used for connecting welding pressure drive arrangement (7), coaxial leading-in welding pressure.

7. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

the welding head clamp of the resonance transmission clamp (1) is arranged at the lower end of the resonance transmission clamp (1), the welding head clamp is a symmetrical mechanism,

the welding head clamp is composed of two inner clamping surfaces (1b), two outer clamping surfaces (1c), a limiting surface (1e) and a fixing hole (1d), the two inner clamping surfaces (1b) and the two outer clamping surfaces (1c) are parallel to each other and are parallel to the axis of the resonance transmission clamp (1), and the fixing hole (1d) vertically penetrates through the inner clamping surfaces (1b) and the outer clamping surfaces (1 c); when the welding head fixture is used for fixedly clamping the welding head (5), two clamping amplitude-change rods (3) are needed, two outer clamping surfaces (1c) of the welding head fixture are respectively connected with the vibration output end surfaces (3a) of the two clamping amplitude-change rods (3), two vibration coupling surfaces (5c) of the welding head (5) are respectively connected with two inner clamping surfaces (1b) of the welding head fixture, the positioning surface (5a) of the welding head (5) is in close fit with the limiting surface (1e) of the welding head fixture, the positioning groove (5b) of the welding head (5) corresponds to the fixing hole (1d) of the welding head fixture, and the rear ends of the clamping bolt (4) penetrating through the fixing hole (1d) of the welding head fixture and the positioning groove (5b) of the welding head are respectively connected with the vibration output end surfaces (3a) of the two clamping amplitude-change rods (3), when the clamping bolt (4) is screwed, the two clamping amplitude transformers (3) can clamp the two outer clamping surfaces (1c) of the welding head clamp, and the clamping force is transmitted to the two inner clamping surfaces (1b) of the welding head clamp, so that the welding head (5) between the two inner clamping surfaces (1b) is fixedly clamped.

8. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1,

the welding head fixture of the resonance transmission fixture (1) is arranged at the lower end of the resonance transmission fixture (1), when the welding head fixture is an asymmetric mechanism, the welding head fixture is composed of a clamping surface (1f), a limiting surface (1e) and a fixing wire hole (1h), the clamping surface (1f) is parallel to the axis of the resonance transmission fixture (1), the fixing wire hole (1h) vertically penetrates through the clamping surface (1f), a positioning groove (5b) of the welding head (5) corresponds to the fixing wire hole (1h) of the welding head fixture, when the welding head fixture fixedly clamps the welding head (5), one vibration coupling surface (5c) of the welding head (5) is connected with the vibration output end surface (3a) of the clamping amplitude transformer (3), and the other vibration coupling surface (5c) of the welding head (5) is connected with the clamping surface (1f) of the welding head fixture, one end of the clamping bolt (4) is connected in the fixing wire hole (1h) of the welding head clamp, the other end of the clamping bolt penetrates through the positioning groove (5b) of the welding head (5) and is connected with the vibration output end surface (3a) of the clamping amplitude transformer (3), and when the clamping bolt (4) is screwed tightly, clamping force can be generated between the vibration output end surface (3a) of the clamping amplitude transformer (3) and the clamping surface (1f) of the welding head clamp, so that the welding head (5) between the two surfaces is fixedly clamped.

9. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 7,

the limiting surface (1e) of the welding head fixture is matched with the positioning surface (5a) of the welding head (5), the axial position of the welding head (5) is limited, and welding pressure is coaxially transmitted to the welding head (5).

10. An ultrasonic metal welding apparatus having a resonant drive clamp mechanism according to claim 1, wherein the resonant drive clamp (1), the horn (5), the clamping horn (3) and the ultrasonic transducer (6) have close resonant frequencies, and are operable to achieve common resonance.