CN114226947B - Terminal ultrasonic welding device and welding method - Google Patents
Terminal ultrasonic welding device and welding method Download PDFInfo
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- CN114226947B CN114226947B CN202111653803.3A CN202111653803A CN114226947B CN 114226947 B CN114226947 B CN 114226947B CN 202111653803 A CN202111653803 A CN 202111653803A CN 114226947 B CN114226947 B CN 114226947B
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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
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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
- B23K20/26—Auxiliary equipment
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention relates to the technical field of ultrasonic welding, and particularly discloses a terminal ultrasonic welding device and a terminal ultrasonic welding method. The device is used for welding the terminal piece to the lining piece and comprises a welding module, a clamp module and a carrying module; the welding module comprises a welding head, a force application unit, an ultrasonic unit and an adsorption unit, wherein the welding head is provided with a positioning hole, a terminal piece can partially extend into the positioning hole, the force application unit is used for applying force in the extending direction of the positioning hole, the ultrasonic unit is used for transmitting ultrasonic waves to the positioning hole, and the adsorption unit can adsorb the terminal piece; the clamp module comprises a lining plate limiting unit and a terminal positioning unit, wherein the lining plate limiting unit is used for limiting or releasing the lining plate, and the terminal positioning unit is provided with a plurality of carrier containing holes for placing the terminal pieces; the carrying module is used for driving the welding head to move between the terminal positioning unit and the lining plate limiting unit. The device improves the accuracy and the efficiency of welding by improving the structure of the welding head and arranging the carrying tool storage holes.
Description
Technical Field
The invention relates to the technical field of ultrasonic welding, in particular to a terminal ultrasonic welding device and a terminal ultrasonic welding method.
Background
The IGBT (Insulated Gate Bipolar Transistor ) is a composite fully-controlled voltage-driven power semiconductor device composed of a BJT (Bipolar Junction Transistor, bipolar transistor) and a MOS (Metal-Oxide-Semiconductor Field-Effect Transistor, insulated gate field effect transistor), and its input is MOS and its output is PNP transistor, so that it can be regarded as a darlington transistor with MOS input. It combines the advantages of high input impedance of MOSFET and low on-voltage drop of GTR, has the characteristics of easy driving, large peak current capacity, self-Turn-Off, high switching frequency (10-40 kilohertz) and the like, gradually replaced thyristors and GTOs (Gate-Turn-Off thyristors) are now developing into a rapid new generation of power electronics. The device is widely applied to small-volume and high-efficiency variable-frequency power supplies, motor speed regulation, UPS and inverter welding machines.
In the production process of the IGBT, the traditional production process utilizes tin soldering to solder the copper terminal and the copper substrate together; however, soldering can bring a plurality of problems, and the main problem is that the soldering increases the resistance of current in the IGBT, increases the energy consumption, generates more serious heat in the use process and reduces the service life of the IGBT; in addition, as the soldering, the copper terminal and the copper plate substrate are made of different materials, the bonding force between the soldered copper terminal and the copper plate substrate is small, the copper terminal and the copper plate substrate are easy to fall off, and the instability of the IGBT is increased.
The ultrasonic welding is to utilize the mechanical vibration of ultrasonic wave to make the welded parts realize solid phase connection through the combination of atomic bonds under certain pressure, and the welding can be realized between metals and between nonmetal only by micro melting in the welding process, so that the ultrasonic welding has the advantages which are different from other welding methods, and the ultrasonic welding can be divided into metal welding and plastic welding. The main principle of ultrasonic welding is that an ultrasonic generator is used for converting power frequency alternating current into high-frequency electric energy, the converted high-frequency electric energy is converted into mechanical motion with the same frequency through a transducer, then the mechanical motion is transmitted to a welding head through a set of amplitude transformer device capable of changing amplitude, the welding head transmits the received vibration energy to a joint part of a workpiece to be welded, and finally materials to be welded are welded.
Therefore, an ultrasonic welding device is introduced to weld the copper terminal and the copper substrate in the IGBT, copper molecules are mutually fused between the copper terminal and the copper substrate after ultrasonic welding, no chemical change occurs, no product provides an extra resistance value in the conducting process, and therefore the conducting performance of the IGBT is ensured. In addition, the ultrasonic welding also increases the tensile force between the copper terminal and the copper substrate, and improves the mechanical stability of the IGBT.
In the PIN ultrasonic welding process of the IGBT module, how to accurately and efficiently implement the ultrasonic welding operation of the PIN is an important problem in the PIN ultrasonic welding operation, and the terminal ultrasonic welding device needs to meet the production efficiency requirement in the PIN ultrasonic welding process, and should also ensure that the welding process can be stably performed.
Disclosure of Invention
The invention aims to provide a terminal ultrasonic welding device and a welding method, which are used for improving the accuracy and efficiency of a welding process.
To achieve the purpose, the invention adopts the following technical scheme:
a terminal ultrasonic welding device is used for welding a terminal piece to a lining piece and comprises a welding module, a clamp module and a carrying module; the welding module comprises a welding head, a force application unit, an ultrasonic unit and an adsorption unit, wherein the welding head is provided with a positioning hole, the terminal piece can partially extend into the positioning hole, the force application unit is used for applying force in the extending direction of the positioning hole, the ultrasonic unit is used for emitting ultrasonic waves to the positioning hole, and the adsorption unit can adsorb the terminal piece extending into the positioning hole; the clamp module comprises a lining plate limiting unit and a terminal positioning unit, wherein the lining plate limiting unit is used for limiting or releasing the lining plate, the terminal positioning unit is provided with a plurality of carrier containing holes, and each carrier containing hole can be used for containing one terminal piece; the carrying module is used for driving the welding head to move between the terminal positioning unit and the lining plate limiting unit.
As a preferable technical scheme of the terminal ultrasonic welding device, the terminal ultrasonic welding device comprises a bearing plate, wherein the middle part of the top surface of the bearing plate is provided with at least one containing groove for containing the lining plate, and the edge of the bearing plate is provided with a plurality of positioning through holes; the lining plate limiting unit comprises a clamp main body and positioning clamping claws, the number of the positioning clamping claws is the same as that of the positioning through holes, one ends of the positioning clamping claws are rotatably connected to the clamp main body, and clamping claw protrusions are arranged at the other ends of the positioning clamping claws in a protruding mode; the lining plate limiting unit can be switched between a limiting state and a releasing state, and when the lining plate limiting unit is in the limiting state, the clamping jaw protrusions penetrate through the positioning through holes and are abutted against the clamp main body; when the lining plate limiting unit is in the release state, the clamping jaw protrusions are separated from the positioning through holes.
As the preferable technical scheme of terminal ultrasonic welding device, the standing groove has been seted up on the top of anchor clamps main part, the loading board is arranged in the standing groove, the edge of standing groove is equipped with at least one guide block, the guide block is close to the side of standing groove is towards the inclined plane of standing groove's tank bottom slope.
As a preferable technical scheme of the terminal ultrasonic welding device, the carrying module comprises a supporting platform, a first frame and a second frame, the clamp module is fixedly connected to the supporting platform, the first frame is slidably arranged on the supporting platform along a first direction, the second frame is slidably arranged on the first frame along a second direction, and the welding head is slidably arranged on the second frame along a third direction; any two of the first direction, the second direction and the third direction are perpendicular to each other.
As the preferable technical scheme of terminal ultrasonic welding device, supporting platform is equipped with along the first slide rail of first direction extension, first frame has linked firmly first slider, first slider sliding connection in first slide rail.
As the preferable technical scheme of terminal ultrasonic welding device, first frame is equipped with the edge the second slide rail of second direction extension, the second frame has linked firmly the second slider, second slider sliding connection in the second slide rail.
As the preferable technical scheme of terminal ultrasonic welding device, the second frame is equipped with the edge the third slide rail of third direction extension, welding module still includes the third frame, and the third frame has linked firmly the third slider with the soldered connection, third slider sliding connection in the third slide rail.
As the preferable technical scheme of the terminal ultrasonic welding device, the second frame is fixedly connected with a module driving unit, and the module driving unit is used for driving the welding module to move along the third sliding rail by applying force.
As a preferable technical scheme of the terminal ultrasonic welding device, the first direction and the second direction are both positioned in a horizontal plane, and the third direction is vertical to the horizontal plane.
The ultrasonic terminal welding method is applied to the ultrasonic terminal welding device and comprises the following steps of:
s10, controlling the lining plate limiting unit to limit the lining plate member, and placing the terminal member in the carrier accommodating hole;
s20, driving the welding head by the carrying module to enable a terminal piece part positioned in the carrier accommodating hole to extend into the positioning hole, and adsorbing the terminal piece extending into the positioning hole;
s30, conveying part of the welding modules to the position right above the position to be welded of the lining plate;
s40, applying treatment pressure towards the substrate member to the welding head, and starting to emit ultrasonic waves to the positioning hole after the part of the terminal member, which is positioned outside the positioning hole, is abutted against the position to be welded of the substrate member;
s50, stopping transmitting ultrasonic waves after waiting for the processing time, and stopping adsorbing the terminal piece;
s60, judging whether the positions to be welded exist on the substrate member, if so, returning to the step S20, and if not, executing the step S70;
s70, recovering the terminal piece positioned in the carrier accommodating hole, and controlling the lining plate limiting unit to release the lining plate piece.
The invention has the beneficial effects that:
according to the terminal ultrasonic welding device, through the matching design of the positioning hole, the force applying unit, the ultrasonic unit and the adsorption unit, the terminal part of the terminal part extending into the positioning hole can achieve the positioning effect on the welding head by means of the adsorption unit, meanwhile, the applied external force and ultrasonic waves can accurately act on the lining plate part through the terminal part, the situation that the welding head is in direct contact with the lining plate part is avoided to the greatest extent through the design, so that the ultrasonic welding operation of the terminal part on the lining plate part can be smoothly performed, and the yield of the welding operation is ensured. The design of the lining plate limiting unit ensures that the lining plate piece can be accurately positioned, the terminal positioning unit is arranged at the position where the terminal piece to be welded is arranged in a summary mode, the welding head is convenient for completing the feeding operation of the terminal piece in an automatic mode, the efficiency and the accuracy of the welding operation of the terminal ultrasonic welding device are greatly improved, and the workload of operators is greatly reduced.
According to the terminal ultrasonic welding method, the ultrasonic wave and the processing pressure are transmitted to the PIN needle, so that the direct contact part of the PIN needle and the lining plate member generates high-frequency friction, the flange surface of the PIN needle deforms, a certain temperature rise is generated, copper molecules on the flange surface of the PIN needle and copper molecules on the surface of the lining plate member are recombined and then integrated, and the welding effect is achieved. The welding process is simple, efficient and reliable, and can improve the efficiency of ultrasonic welding operation while guaranteeing the yield of ultrasonic welding operation. Meanwhile, the operation of feeding the PIN needle from the carrier storage hole by the welding head can preferably improve the working flow of the terminal ultrasonic welding method, so that the automation degree of the terminal ultrasonic welding method is further improved.
Drawings
Fig. 1 is a schematic structural view of a terminal ultrasonic welding device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a terminal member, a carrier plate and a clamp module according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1A;
fig. 4 is a flowchart of a terminal ultrasonic welding method according to an embodiment of the present invention.
In the figure:
100. a support platform; 110. a first slide rail; 200. a first frame; 210. a first slider; 220. a second slide rail; 300. a second frame; 310. a second slider; 320. a third slide rail; 330. a module driving unit; 400. a welding module; 410. a third slider; 420. a welding head; 430. an ultrasonic unit; 440. a third frame;
500. a clamp module; 510. a module base; 511. a base through hole; 512. a base handle; 520. a terminal positioning unit; 521. a carrier receiving hole; 530. a clamp body; 531. a guide block; 540. positioning clamping jaws; 541. a jaw projection;
600. a terminal member; 700. a carrying plate; 800. a liner member.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment provides a terminal ultrasonic welding apparatus for welding a terminal member 600 to a backing member 800, including a welding module 400, a jig module 500, and a carrying module; the welding module 400 comprises a welding head 420, a force application unit, an ultrasonic unit 430 and an adsorption unit, wherein the welding head 420 is provided with a positioning hole, the terminal piece 600 can partially extend into the positioning hole, the force application unit is used for applying force in the extending direction of the positioning hole, the ultrasonic unit 430 is used for transmitting ultrasonic waves to the positioning hole, and the adsorption unit can adsorb the terminal piece 600 extending into the positioning hole; the fixture module 500 comprises a lining plate limiting unit and a terminal positioning unit 520, wherein the lining plate limiting unit is used for limiting or releasing the lining plate 800, the terminal positioning unit 520 is provided with a plurality of carrier accommodating holes 521, and each carrier accommodating hole 521 can be used for accommodating one terminal 600; the handling module is used for driving the welding head 420 to move between the terminal positioning unit 520 and the lining plate limiting unit.
According to the terminal ultrasonic welding device, through the matching design of the positioning hole, the force applying unit, the ultrasonic unit 430 and the adsorption unit, the terminal piece 600 of which part extends into the positioning hole can achieve the positioning effect on the welding head 420 by means of the adsorption unit, meanwhile, the applied external force and ultrasonic energy can be accurately acted on the lining piece 800 through the terminal piece 600, the situation that the welding head 420 is in direct contact with the lining piece 800 is avoided to the greatest extent through the design, so that the ultrasonic welding operation of the terminal piece 600 on the lining piece 800 can be smoothly performed, and the yield of the welding operation is ensured. The design of the lining plate limiting unit ensures that the lining plate piece 800 can be accurately positioned, the terminal positioning unit 520 is arranged to provide a generalized position for the terminal piece 600 to be welded, the orderly arrangement of the terminal piece 600 is convenient for the welding head 420 to finish the feeding operation of the terminal piece 600 in an automatic mode, and the arrangement greatly improves the efficiency and accuracy of the welding operation of the terminal ultrasonic welding device and greatly reduces the workload of operators.
During the welding process, the PIN needles need to be welded to the substrate member 800 at the designated locations, which are required to be precise. If the positioning hole is too large, the accuracy requirement of the welding head 420 on the position of the PIN needle can cause inaccurate positioning due to shaking of the PIN needle in the positioning hole; if the positioning hole is too small, the difficulty of inserting the PIN needle into the positioning hole can be directly improved.
In this embodiment, the terminal member 600 is a PIN, the PIN shaft of the PIN extends into the positioning hole, the needle cap is located outside the positioning hole, the side surface of the needle cap, which faces away from the PIN shaft, is a flange surface, the flange surface is in direct contact with the lining member 800, and the positioning hole is a cylindrical hole. The outer surface of the substrate member 800 in contact with the PIN needles is coated with copper, and the PIN needles are made of copper. The ultrasonic unit 430 is fixedly mounted on the bonding head 420.
Specifically, the needle bar fully extends into the positioning hole, and the needle cap is fully positioned outside the positioning hole; the diameter of the needle rod is 1 millimeter, and the diameter of the positioning hole is between 1 millimeter and 1.2 millimeters.
Preferably, the adsorption means of the adsorption unit is vacuum adsorption. In other implementations of this embodiment, the adsorption unit is replaced by a mechanical positioning unit, and the mechanical positioning unit is telescopically disposed in the positioning hole, so that the positioning requirement of the welding head 420 on the PIN can be met by pressing against the PIN.
In the present embodiment, the terminal member 600 is manually placed into the carrier receiving hole 521 by an operator. In other implementations of the present embodiment, the terminal ultrasonic welding device further includes a placement module, where the placement module is configured to sort and place the terminal pieces 600 to be placed into the carrier receiving hole 521.
Preferably, the terminal ultrasonic welding device comprises a bearing plate 700, wherein the middle part of the top surface of the bearing plate 700 is provided with at least one containing groove for containing the liner plate 800, and the edge of the bearing plate 700 is provided with a plurality of positioning through holes; the lining plate limiting unit comprises a clamp main body 530 and positioning clamping claws 540, wherein the number of the positioning clamping claws 540 is the same as that of the positioning through holes, one end of each positioning clamping claw 540 is rotatably connected to the clamp main body 530, and clamping claw protrusions 541 are convexly arranged at the other end of each positioning clamping claw; the liner plate limiting unit can be switched between a limiting state and a releasing state, and when the liner plate limiting unit is in the limiting state, the clamping jaw protrusions 541 pass through the positioning through holes and are abutted against the clamp main body 530; when the liner plate limiting unit is in the released state, the clamping jaw protrusions 541 are disengaged from the positioning through holes.
The design of the carrier plate 700 enables the terminal ultrasonic welding device to simultaneously complete ultrasonic welding operations on a plurality of liner plate members 800, and the arrangement reduces the frequency of limiting and releasing the liner plate members 800 by the liner plate limiting unit and reduces the times of placing and recovering the terminal members 600 by the terminal positioning unit 520. With the adoption of the arrangement, the efficiency of ultrasonic welding operation can be effectively improved, and the workload of operators is reduced. Meanwhile, by virtue of the design that the jaw protrusions 541 can pass through the positioning through holes and abut against the clamp main body 530, the positioning effect of the positioning jaw 540 on the loading plate 700 positioned in the accommodating groove can be ensured to a great extent. Specifically, the carrying plate 700 has a rectangular structure, and four positioning through holes are distributed on four corners of the carrying plate 700.
Further, a placement groove is formed in the top end of the clamp main body 530, the bearing plate 700 is placed in the placement groove, at least one guide block 531 is arranged at the edge of the placement groove, and the side surface of the guide block 531, which is close to the placement groove, is an inclined surface inclined towards the bottom of the placement groove. The design that the placement groove is positioned at the top end of the clamp main body 530 facilitates the accurate positioning of the bearing plate 700 in the placement groove, and reduces the risk of deviation of the installation position of the clamp main body 530; the design of the upper inclined surface of the guide block 531 can play a role in guiding the placing action of the bearing plate 700, and further ensures that the bearing plate 700 can be accurately placed in the placing groove.
In this embodiment, the handling module includes a support platform 100, a first frame 200 and a second frame 300, the clamp module 500 is fixedly connected to the support platform 100, the first frame 200 is slidably disposed on the support platform 100 along a first direction, the second frame 300 is slidably disposed on the first frame 200 along a second direction, and the welding head 420 is slidably disposed on the second frame 300 along a third direction; any two of the first direction, the second direction and the third direction are perpendicular to each other. The sliding connection of the first frame 200 and the support platform 100, the sliding connection of the second frame 300 and the first frame 200, and the design that the welding head 420 is slidably disposed on the second frame 300 can enable the position of the welding head 420 to be adjustable in a space rectangular coordinate system, so that smooth reciprocating movement of the welding head 420 between the terminal positioning unit 520 and the lining plate limiting unit is ensured, and the position of the clamp module 500 is determined due to the design that the clamp module 500 is fixedly connected to the support platform 100. The above design reduces the risk of positional deviation caused by accidents among the components, so that the welding head 420 can smoothly complete the movement between the terminal positioning unit 520 and the lining plate limiting unit, and the terminal ultrasonic welding device can perform welding operation stably for a long time.
Preferably, the support platform 100 is provided with a first sliding rail 110 extending along a first direction, the first frame 200 is fixedly connected with a first sliding block 210, and the first sliding block 210 is slidably connected to the first sliding rail 110; the first frame 200 is provided with a second sliding rail 220 extending along a second direction, the second frame 300 is fixedly connected with a second sliding block 310, and the second sliding block 310 is slidably connected with the second sliding rail 220; the second frame 300 is provided with a third sliding rail 320 extending along a third direction, the welding module 400 further comprises a third frame 440, the third frame 440 is fixedly connected with a third sliding block 410 and a welding head 420, and the third sliding block 410 is slidably connected with the third sliding rail 320; the second frame 300 is fixedly connected with a module driving unit 330, and the module driving unit 330 is used for driving the welding module 400 to move along the third sliding rail 320 by applying force. The above structure is simple and reliable, and it is ensured that the welding head 420 smoothly completes a predetermined operation.
The first sliding blocks 210 are in the same number and are in sliding connection with the first sliding rails 110 in a one-to-one correspondence manner; the second sliding blocks 310 are in the same number and are in sliding connection with the second sliding rails 220 in a one-to-one correspondence manner; the third sliders 410 are slidably connected to the third slide rails 320 in the same number and one-to-one correspondence. Specifically, the first sliding rail 110, the second sliding rail 220 and the third sliding rail 320 are provided with two.
Preferably, the clamp module 500 further comprises a module base 510, the clamp main body 530 and the terminal positioning unit 520 are fixedly connected to the module base 510, two sides of the top end of the module base 510 are respectively provided with a base handle 512, and the base handles 512 are arranged to facilitate the handling of the clamp module 500 by operators; the edge circumference of the module base 510 is uniformly distributed with a plurality of base through holes 511, and the positioning bolts can pass through the base through holes 511 and be screwed on the support platform 100, so that the clamp module 500 is fixedly connected to the support platform 100.
In the present embodiment, the support platform 100 is provided with a first lead screw and a first driving unit, the first lead screw being arranged in a first direction. The first frame 200 is provided with a second screw and a second driving unit, and the second screw is disposed along a second direction. The output end of the module driving unit 330 is fixedly connected to the third frame 440, the first frame 200 is connected to the first screw shaft through a transmission screw, and the second frame 300 is connected to the second screw shaft through a transmission screw.
With the above structural design, the first driving unit can drive the first frame 200 to move in the first direction by driving the first screw; the second driving unit can drive the second frame 300 to move in the second direction by driving the second screw; the module driving unit 330 can drive the third frame 440 to move in the third direction.
Specifically, the force application unit is a module driving unit 330, and the module driving unit 330 is preferably a cylinder. In other implementations of the present embodiment, the unit that drives the third frame 440 to move in the third direction and the unit that applies the downward pressure to the bonding head 420 are two different members.
In this embodiment, the relative displacement between the first frame 200, the second frame 300 and the third frame 440 is designed as a conventional arrangement in the art, and the fitting manner of the components is well known in the art, and is not repeated herein.
In other implementations of this embodiment, the first driving unit, the second driving unit, and the module driving unit 330 may be any structure capable of providing power and guiding for translation and lifting operations, such as a driving module, a linear motor system, an electric cylinder system, a cylinder, or a servo press.
In this embodiment, the first direction and the second direction are both in a horizontal plane, and the third direction is vertical to the horizontal plane. The design optimizes the stress condition among the components of the carrying module, reduces the risk of position deviation of the components due to dead weight, and simultaneously reduces the risk of structural deformation of the components due to uneven stress, thereby reducing the maintenance frequency of the terminal ultrasonic welding device and prolonging the service life of the terminal ultrasonic welding device.
In this embodiment, the shape and size of the welding head 420 are designed and produced according to the external dimension and welding area of the PIN needle; the shape and the size of the lining plate limiting unit are obtained by design and production according to the external dimensions and the welding area of the PIN needle and the bearing plate 700. The specific design parameters of the welding head 420 and the liner limiting unit are selected by those skilled in the art, and thus will not be described in detail herein.
As shown in fig. 4, the present embodiment further provides a terminal ultrasonic welding method, which is applied to the terminal ultrasonic welding device, and includes the following steps:
step one: the control lining plate limiting unit limits the lining plate member 800, and the terminal member 600 is placed in the carrier receiving hole 521.
Step two: the carrying module drives the welding head 420 to enable a part of the terminal piece 600 positioned in the carrier accommodating hole 521 to extend into the positioning hole, and the terminal piece 600 extending into the positioning hole is absorbed.
Step three: the partial welding module 400 is carried to just above the position to be welded of the substrate member 800.
Step four: a treatment pressure is applied to the solder joint 420 toward the board member 800, and after a portion of the terminal member 600 located outside the positioning hole abuts against a position to be soldered of the board member 800, ultrasonic waves start to be emitted toward the positioning hole.
Step five: after waiting for the processing time, the emission of ultrasonic waves is stopped, and the suction of the terminal member 600 is stopped.
Step six: and judging whether the position to be welded exists on the substrate member 800, if so, returning to the step two, and if not, carrying out the step seven.
Step seven: the terminal member 600 positioned in the carrier receiving hole 521 is recovered, and the liner plate limiting unit is controlled to release the liner plate member 800.
Specifically, the treatment pressure is between 30 and 500 newtons, and the treatment time is between 0.1 and 1 second; in the process of transmitting ultrasonic waves, the numerical value of the ultrasonic waves is linearly related to the numerical value of the processing pressure.
According to the terminal ultrasonic welding method, the ultrasonic wave and the processing pressure are transmitted to the PIN needle, so that high-frequency friction is generated at the direct contact part of the PIN needle and the liner piece 800, the flange surface of the PIN needle is deformed, a certain temperature rise is generated, copper molecules of the flange surface of the PIN needle and copper molecules of the surface of the liner piece 800 are recombined and then integrated, and the welding effect is achieved. The welding process is simple, efficient and reliable, and can improve the efficiency of ultrasonic welding operation while guaranteeing the yield of ultrasonic welding operation. Meanwhile, the operation of feeding the PIN needle from the carrier receiving hole 521 by the welding head 420 can effectively improve the working flow of the terminal ultrasonic welding method, thereby further improving the automation degree of the terminal ultrasonic welding method.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A terminal ultrasonic welding device for welding a terminal member (600) to a backing member (800), comprising:
the welding module (400) comprises a welding head (420), a force application unit, an ultrasonic unit (430) and an adsorption unit, wherein a positioning hole is formed in the welding head (420), the terminal piece (600) can partially extend into the positioning hole, the force application unit is used for applying force in the extending direction of the positioning hole, the ultrasonic unit (430) is used for emitting ultrasonic waves to the positioning hole, and the adsorption unit can adsorb the terminal piece (600) extending into the positioning hole;
the clamp module (500) comprises a lining plate limiting unit and a terminal positioning unit (520), wherein the lining plate limiting unit is used for limiting or releasing the lining plate (800), the terminal positioning unit (520) is provided with a plurality of carrier containing holes (521), and each carrier containing hole (521) can be used for containing one terminal (600);
the carrying module is used for driving the welding head (420) to move between the terminal positioning unit (520) and the lining plate limiting unit;
according to the terminal ultrasonic welding device, through the matching design of the positioning hole, the force application unit, the ultrasonic unit (430) and the adsorption unit, the terminal piece (600) extending into the positioning hole can achieve the positioning effect on the welding head (420) by means of the adsorption unit.
2. The terminal ultrasonic welding device according to claim 1, wherein the terminal ultrasonic welding device comprises a bearing plate (700), wherein at least one accommodating groove for accommodating the lining plate (800) is formed in the middle of the top surface of the bearing plate (700), and a plurality of positioning through holes are formed in the edge of the bearing plate (700); the lining plate limiting unit comprises a clamp main body (530) and positioning clamping claws (540) with the same number as that of the positioning through holes, one ends of the positioning clamping claws (540) are rotatably connected to the clamp main body (530), and clamping claw protrusions (541) are convexly arranged at the other ends of the positioning clamping claws;
the lining plate limiting unit can be switched between a limiting state and a releasing state, and when the lining plate limiting unit is in the limiting state, the clamping jaw protrusions (541) penetrate through the positioning through holes and are abutted against the clamp main body (530); when the lining plate limiting unit is in the release state, the clamping jaw protrusions (541) are separated from the positioning through holes.
3. The terminal ultrasonic welding device according to claim 2, wherein a placement groove is provided at a top end of the jig main body (530), the carrier plate (700) is disposed in the placement groove, at least one guide block (531) is provided at an edge of the placement groove, and a side surface of the guide block (531) close to the placement groove is an inclined surface inclined toward a groove bottom of the placement groove.
4. The terminal ultrasonic welding device according to claim 1, wherein the handling module comprises a support platform (100), a first frame (200) and a second frame (300), the clamp module (500) is fixedly connected to the support platform (100), the first frame (200) is slidably arranged on the support platform (100) along a first direction, the second frame (300) is slidably arranged on the first frame (200) along a second direction, and the welding head (420) is slidably arranged on the second frame (300) along a third direction;
any two of the first direction, the second direction and the third direction are perpendicular to each other.
5. The terminal ultrasonic welding device according to claim 4, wherein the support platform (100) is provided with a first slide rail (110) extending along the first direction, the first frame (200) is fixedly connected with a first slider (210), and the first slider (210) is slidably connected to the first slide rail (110).
6. The terminal ultrasonic welding device according to claim 4, wherein the first frame (200) is provided with a second slide rail (220) extending along the second direction, the second frame (300) is fixedly connected with a second slide block (310), and the second slide block (310) is slidably connected with the second slide rail (220).
7. The terminal ultrasonic welding device according to claim 4, wherein the second frame (300) is provided with a third sliding rail (320) extending along the third direction, the welding module (400) further comprises a third frame (440), a third slider (410) and the welding head (420) are fixedly connected to the third frame (440), and the third slider (410) is slidably connected to the third sliding rail (320).
8. The terminal ultrasonic welding device according to claim 7, wherein a module driving unit (330) is fixedly connected to the second frame (300), and the module driving unit (330) is used for driving the welding module (400) to move along the third sliding rail (320) by applying force.
9. The terminal ultrasonic welding device of claim 4, wherein the first direction and the second direction are both in a horizontal plane, and the third direction is vertical to the horizontal plane.
10. A terminal ultrasonic welding method, characterized by being applied to the terminal ultrasonic welding apparatus according to any one of claims 1 to 9, comprising the steps of:
s10, controlling the lining plate limiting unit to limit the lining plate member (800), and placing the terminal member (600) in the carrier accommodating hole (521);
s20, driving the welding head (420) by a carrying module, enabling a part of the terminal piece (600) positioned in the carrier accommodating hole (521) to extend into the positioning hole, and adsorbing the terminal piece (600) extending into the positioning hole;
s30, conveying part of the welding modules (400) to the position right above the position to be welded of the lining plate (800);
s40, applying treatment pressure towards the lining plate (800) to the welding head (420), and starting to emit ultrasonic waves to the positioning hole after the part of the terminal piece (600) positioned outside the positioning hole is abutted against the position to be welded of the lining plate (800);
s50, stopping transmitting ultrasonic waves after waiting for the treatment time, and stopping adsorbing the terminal piece (600);
s60, judging whether a position to be welded exists on the substrate piece (800), if so, returning to the step S20, and if not, executing the step S70;
s70, recovering the terminal piece (600) positioned in the carrier accommodating hole (521), and controlling the lining plate limiting unit to release the lining plate piece (800).
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921460A (en) * | 1997-06-05 | 1999-07-13 | Ford Motor Company | Method of soldering materials supported on low-melting substrates |
| JP2000040575A (en) * | 1998-07-23 | 2000-02-08 | Toshiba Battery Co Ltd | Joining method and device for lead terminal of electrode for battery |
| KR20110107459A (en) * | 2010-03-25 | 2011-10-04 | 김방희 | Coil bobin terminal dipping device for ultra sonic soldering apparatus |
| CN204771342U (en) * | 2015-07-23 | 2015-11-18 | 江苏宏微科技股份有限公司 | DBC board and terminal welded welding jig |
| KR101619782B1 (en) * | 2015-04-14 | 2016-05-12 | 제엠제코(주) | Apparatus for bonding the semiconductor substrate by ultrasonic welding |
| JP2017092293A (en) * | 2015-11-12 | 2017-05-25 | 京セラ株式会社 | Power semiconductor module and its manufacturing method |
| KR20170105367A (en) * | 2016-03-09 | 2017-09-19 | 주식회사 엘지화학 | Ultrasonic Welding Assembly Comprising Welding Horn Capable of Performing Welding in Stable State |
| CN207139100U (en) * | 2017-09-20 | 2018-03-27 | 深圳市深发源精密科技有限公司 | A kind of Wiring harness fixture and the ultrasonic spot welder with the Wiring harness fixture |
| WO2018062727A1 (en) * | 2016-09-28 | 2018-04-05 | 주식회사 크레셈 | Ultrasonic bonding device |
| CN207414639U (en) * | 2017-11-14 | 2018-05-29 | 广州赫攀自动化设备有限公司 | A kind of fence welding equipment |
| CN109676250A (en) * | 2018-12-29 | 2019-04-26 | 圣石激光科技(深圳)有限公司 | Double-station laser coaxial vision welder |
| CN109702314A (en) * | 2018-12-26 | 2019-05-03 | 珠海德瑞医疗器械有限公司 | A kind of ultrasonic brazing unit |
| DE202020100177U1 (en) * | 2019-11-05 | 2020-01-24 | Chou Pi-Shan | Ultrasonic welding machine |
| CN110977161A (en) * | 2019-11-13 | 2020-04-10 | 上海航天设备制造总厂有限公司 | High-precision triaxial laser welding equipment |
| CN211276957U (en) * | 2019-12-25 | 2020-08-18 | 合肥中恒微半导体有限公司 | Ultrasonic welding jig for IGBT module power terminal |
| CN211438548U (en) * | 2019-09-05 | 2020-09-08 | 必能信超声(上海)有限公司 | Ultrasonic welding fixing equipment |
| CN212217432U (en) * | 2020-04-04 | 2020-12-25 | 上海智汇电器有限公司 | Ultrasonic welding device and welding production line |
| CN112894115A (en) * | 2020-12-28 | 2021-06-04 | 上海骄成机电设备有限公司 | Ultrasonic welding device |
| CN213383049U (en) * | 2020-09-27 | 2021-06-08 | 立达电线(东莞)有限公司 | Ultrasonic fixing device for wire and cover body |
| CN213691998U (en) * | 2020-12-02 | 2021-07-13 | 江苏宏微科技股份有限公司 | Novel power semiconductor module of design |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7896219B2 (en) * | 2009-03-03 | 2011-03-01 | GM Global Technology Operations LLC | Method and apparatus for ultrasonic welding of terminals |
-
2021
- 2021-12-30 CN CN202111653803.3A patent/CN114226947B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5921460A (en) * | 1997-06-05 | 1999-07-13 | Ford Motor Company | Method of soldering materials supported on low-melting substrates |
| JP2000040575A (en) * | 1998-07-23 | 2000-02-08 | Toshiba Battery Co Ltd | Joining method and device for lead terminal of electrode for battery |
| KR20110107459A (en) * | 2010-03-25 | 2011-10-04 | 김방희 | Coil bobin terminal dipping device for ultra sonic soldering apparatus |
| KR101619782B1 (en) * | 2015-04-14 | 2016-05-12 | 제엠제코(주) | Apparatus for bonding the semiconductor substrate by ultrasonic welding |
| CN204771342U (en) * | 2015-07-23 | 2015-11-18 | 江苏宏微科技股份有限公司 | DBC board and terminal welded welding jig |
| JP2017092293A (en) * | 2015-11-12 | 2017-05-25 | 京セラ株式会社 | Power semiconductor module and its manufacturing method |
| KR20170105367A (en) * | 2016-03-09 | 2017-09-19 | 주식회사 엘지화학 | Ultrasonic Welding Assembly Comprising Welding Horn Capable of Performing Welding in Stable State |
| WO2018062727A1 (en) * | 2016-09-28 | 2018-04-05 | 주식회사 크레셈 | Ultrasonic bonding device |
| CN207139100U (en) * | 2017-09-20 | 2018-03-27 | 深圳市深发源精密科技有限公司 | A kind of Wiring harness fixture and the ultrasonic spot welder with the Wiring harness fixture |
| CN207414639U (en) * | 2017-11-14 | 2018-05-29 | 广州赫攀自动化设备有限公司 | A kind of fence welding equipment |
| CN109702314A (en) * | 2018-12-26 | 2019-05-03 | 珠海德瑞医疗器械有限公司 | A kind of ultrasonic brazing unit |
| CN109676250A (en) * | 2018-12-29 | 2019-04-26 | 圣石激光科技(深圳)有限公司 | Double-station laser coaxial vision welder |
| CN211438548U (en) * | 2019-09-05 | 2020-09-08 | 必能信超声(上海)有限公司 | Ultrasonic welding fixing equipment |
| DE202020100177U1 (en) * | 2019-11-05 | 2020-01-24 | Chou Pi-Shan | Ultrasonic welding machine |
| CN110977161A (en) * | 2019-11-13 | 2020-04-10 | 上海航天设备制造总厂有限公司 | High-precision triaxial laser welding equipment |
| CN211276957U (en) * | 2019-12-25 | 2020-08-18 | 合肥中恒微半导体有限公司 | Ultrasonic welding jig for IGBT module power terminal |
| CN212217432U (en) * | 2020-04-04 | 2020-12-25 | 上海智汇电器有限公司 | Ultrasonic welding device and welding production line |
| CN213383049U (en) * | 2020-09-27 | 2021-06-08 | 立达电线(东莞)有限公司 | Ultrasonic fixing device for wire and cover body |
| CN213691998U (en) * | 2020-12-02 | 2021-07-13 | 江苏宏微科技股份有限公司 | Novel power semiconductor module of design |
| CN112894115A (en) * | 2020-12-28 | 2021-06-04 | 上海骄成机电设备有限公司 | Ultrasonic welding device |
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|---|---|
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