CN217618532U - Resistance heat-assisted ultrasonic welding device - Google Patents
Resistance heat-assisted ultrasonic welding device Download PDFInfo
- Publication number
- CN217618532U CN217618532U CN202221291403.2U CN202221291403U CN217618532U CN 217618532 U CN217618532 U CN 217618532U CN 202221291403 U CN202221291403 U CN 202221291403U CN 217618532 U CN217618532 U CN 217618532U
- Authority
- CN
- China
- Prior art keywords
- welding
- seat
- ultrasonic
- ultrasonic welding
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Resistance Welding (AREA)
Abstract
The application relates to a resistance heat auxiliary ultrasonic welding device, which comprises a frame, an ultrasonic welding head, a welding seat assembly and a resistance welding electrode; the frame is provided with a driving assembly for providing ultrasonic waves and an electrode fixing block; the ultrasonic welding head is arranged on the rack and is positioned at the output end of the driving assembly, the ultrasonic welding head is provided with a vibration node, and the electrode fixing block is connected with the vibration node; the welding seat assembly comprises a welding seat, a first conductive column, a fixed seat, a second conductive column and a first cushion block, wherein the first cushion block is positioned between the welding seat and the fixed seat, the welding seat is provided with a first column accommodating cavity, and the first conductive column is positioned in the first column accommodating cavity; the fixed seat is provided with a second column accommodating cavity, and the second conductive column is positioned in the second column accommodating cavity and is in contact with the first conductive column; the resistance welding electrode comprises a first electrode lead and a second electrode lead, the first electrode lead is electrically connected with the electrode fixing block, and the second electrode lead is electrically connected with the second conductive column. The application realizes the effect of introducing resistance heat energy in ultrasonic welding to enhance the ultrasonic welding.
Description
Technical Field
The application relates to the technical field of ultrasonic welding, in particular to a resistance heat auxiliary ultrasonic welding device.
Background
The high-speed development of the electric automobile industry puts higher requirements on power batteries, the number of layers of single power battery winding is increased in order to meet the requirement of energy density of the power batteries, and the connection between foil materials and a current collector of a single battery core is usually realized through ultrasonic welding. Ultrasonic welding is a welding method for bonding metals to be connected together by utilizing ultrasonic frequency mechanical vibration, the method utilizes a friction welding principle, and because the mechanical vibration frequency is higher and the vibration amplitude is correspondingly reduced, the friction is micro-friction between metal interfaces, and the generated energy is limited.
With the increase of the number of the layers of the foil materials of the single battery cell, the ultrasonic welding of the foil materials and the current collectors is more difficult. To achieve more layers of foil and current collectors, ultrasonic welding typically requires increased welding parameters, such as energy, gas pressure, and amplitude.
Aiming at the related technical means, as the number of layers of the foil of the single battery cell increases, the defects that the foil is easy to break and the corresponding welding stability is reduced exist in the ultrasonic welding increasing welding parameters.
SUMMERY OF THE UTILITY MODEL
In order to improve ultrasonic welding and increase the defect that there is the foil easy rupture and corresponding welding stability reduction in welding parameter, this application provides a resistance heat assists ultrasonic welding device.
The application provides a resistance heat assists ultrasonic welding device adopts following technical scheme:
a resistance heat-assisted ultrasonic welding device comprises,
the ultrasonic probe comprises a rack, a probe body and a probe head, wherein the rack is provided with a driving assembly for providing ultrasonic waves and an electrode fixing block;
the ultrasonic welding head is used for transmitting ultrasonic energy, is arranged on the rack and is positioned at the output end of the driving assembly, and is provided with a vibration node, and the electrode fixing block is fixedly connected with the vibration node;
the welding seat assembly is matched with the ultrasonic welding head and comprises a welding seat for bearing foil and a current collector, a first conductive column, a fixed seat, a second conductive column and a first insulating cushion block, wherein the first insulating cushion block is arranged between the welding seat and the fixed seat, the welding seat is provided with a first column containing cavity, and the first conductive column is positioned in the first column containing cavity; the fixed seat is provided with a second column accommodating cavity which is communicated with the first column accommodating cavity, and the second conductive column is positioned in the second column accommodating cavity and is in contact with the first conductive column;
and the resistance welding electrode comprises a first electrode lead and a second electrode lead, the first electrode lead is electrically connected with the electrode fixing block, and the second electrode lead is electrically connected with the second conductive column.
By adopting the technical scheme, the first electrode lead is electrically connected with the electrode fixing block, the ultrasonic welding head is electrified, the second electrode lead is connected with the second conductive column, the current passes through the second conductive column, the first conductive column in contact with the second conductive column is conductive, the welding base is also electrified, the first cushion block is positioned between the welding base and the fixing base, the welding base and the fixing base are relatively insulated, the ultrasonic welding head is contacted with the welding base to form a current path, a resistance welding loop is formed, the ultrasonic welding head and the welding base are connected under the action of the driving assembly to introduce resistance heat energy to the foil and the current collector so as to enhance ultrasonic welding, the welding between multiple layers of foils and the current collector is stabilized, and the problem of foil breakage during welding is reduced. Compared with the prior art, the first electrode lead of the resistance welding is connected with the ultrasonic welding head, the second electrode lead of the resistance welding is shared with the welding seat, the performance of the ultrasonic welding function is not influenced, the compatibility problem of the ultrasonic welding head and the resistance welding electrode is realized, the composite effect of the ultrasonic welding head and the resistance welding electrode is achieved, the ultrasonic welding and the resistance welding can work synchronously and alternately, and the optimal output effect of the superposition of two kinds of energy is realized.
Optionally, the vibration node is provided with an electrode connecting portion for reducing the influence of the first motor lead on the amplitude and frequency of the ultrasonic welding head, and the electrode fixing block is fixed to the outer ring of the electrode connecting portion of the vibration node.
By adopting the technical scheme, the amplitude of the ultrasonic welding head at the vibration node is close to the zero point, and the amplitude of the ultrasonic welding head away from the vibration node begins to gradually increase; the electrode connecting part is arranged at the vibration node, the outer ring of the electrode connecting part vibrates weakly, the Poisson effect of vibration of the welding head is met, and the first electrode lead is not influenced by the vibration of the welding head, so that the first electrode lead is fixed on the electrode connecting part through the electrode fixing block and does not influence the frequency and amplitude characteristics of the ultrasonic welding head, and the compatible effect of the ultrasonic welding head and the resistance welding electrode is realized.
Optionally, the fixing base is provided with a second cushion block, a disc spring and a second accommodating groove, the disc spring is located in the second accommodating groove, one end of the disc spring is in contact with and abuts against the second cushion block, the other end of the disc spring is in contact with and abuts against the second conductive pillar, the second cushion block is located at an opening of the second accommodating groove, and the second cushion block is fixedly connected with the fixing base.
Through adopting above-mentioned technical scheme, when the welding seat was installed in the fixing base, the contact of first leading electrical pillar and second lead electrical pillar and receive gravity to support and press, the dish spring that is located second and leads electrical pillar one end keeps the pressurized state throughout between second cushion and second lead electrical pillar, because the elastic potential of dish spring leads electrical pillar to apply the effort of leading electrical pillar towards first to the second for first leading electrical pillar and second lead electrical pillar and keep the electricity all the time and connect, has strengthened the stability that the welding seat is electrically connected.
Optionally, the fixing base is further provided with a third cushion block, the third cushion block is located at one end, far away from the welding base, of the second cushion block, the second conductive pillar penetrates through the third cushion block and is connected with the third cushion block, and the third cushion block is made of an insulating material.
Through adopting above-mentioned technical scheme, insulating treatment is carried out between third cushion and the second cushion to the second lead electrical pillar one end of keeping away from the welding seat, has reduced operating personnel and has conducted electrical connection in-process to second electrode lead wire and second, contacts with the second cushion and produces the risk of electrocuteeing, improves the security performance of device.
Optionally, the welding seat is provided with a first gasket and a first accommodating groove for accommodating a bolt, the first gasket is located at an opening end of the first accommodating groove, the bolt penetrates through the first gasket and the first accommodating groove, so that the welding seat and the first cushion block are connected with the fixing seat, and one end of the bolt is in contact with and abuts against the first gasket.
Through adopting above-mentioned technical scheme, weld seat, first cushion and fixing base and pass through bolt fixed connection, the one end of first gasket and bolt is supported to press and has further strengthened the installation stability between welding seat and the fixing base.
Optionally, a first insulating sleeve sleeved on the periphery of the bolt is arranged in the first accommodating groove, the first insulating sleeve is located in the first accommodating groove, a second gasket is arranged between the first gasket and the welding seat, and the first insulating sleeve and the second gasket are made of insulating materials.
Through adopting above-mentioned technical scheme, first insulating bush mutually supports with the second gasket, carries out relative insulation processing to bolt and welding seat, and further the insulation processing between having strengthened welding seat and the fixing base has avoided the situation of short circuit to take place, and insulation processing has improved the security of operating personnel in the welding operation process simultaneously.
Optionally, the second conductive pillar is provided with a second insulating sleeve, and the second insulating sleeve is sleeved on the periphery of the second conductive pillar; the fixing base is provided with third insulating cover and insulating piece, the third insulating cover is located in the second holding tank, just the third insulating cover is located the dish spring periphery wall, the insulating piece is located second holding tank bottom, just the insulating piece with the contact of second insulating cover.
By adopting the technical scheme, when the second conductive column is electrified, the second insulating sleeve is contacted with the third insulating sleeve through the insulating sheet, so that the relative insulating effect between the second conductive column and the fixed seat is realized, the short circuit is effectively reduced, the welding seat and the ultrasonic welding head are ensured to form a closed passage, and a resistance welding loop is formed.
Optionally, the ultrasonic welding head has a welding end, and the welding end is provided with a rack for increasing friction between the ultrasonic welding head and the foil.
By adopting the technical scheme, the rack provides ultrasonic energy for the ultrasonic welding head, the ultrasonic welding head is contacted with the welding seat to form a resistance welding loop, the foil and the current collector are positioned between the ultrasonic welding head and the welding seat, the rack increases the friction force between the ultrasonic welding head and the foil, and further the welding stability between the foil and the current collector is enhanced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the effect of compatibility of the ultrasonic welding head and the resistance welding electrode is realized. Compared with the prior art, the electrode connecting part is arranged at the vibration node, so that the frequency and amplitude characteristics of the ultrasonic welding head are not influenced when the first electrode lead is fixed on the outer ring of the electrode connecting part through the electrode fixing block, the second electrode lead of the resistance welding is connected with the welding seat, the compatibility problem of the ultrasonic welding head and the resistance welding electrode is realized, the composite effect of the functions of the ultrasonic welding head and the resistance welding is achieved, the ultrasonic welding and the resistance welding can synchronously do work and can also alternately do work, and the optimal output effect of superposition of two types of energy is realized.
2. The welding between the multiple layers of foils and the current collector is stabilized, and the problem of foil breakage during welding is reduced. The first electrode lead is electrically connected with the electrode fixing block, the ultrasonic welding head is electrified, the second electrode lead is connected with the second conductive column, the current passes through the second conductive column, the first conductive column in contact with the second conductive column is conductive, the welding base is also electrified, the first cushion block is positioned between the welding base and the fixing base, the welding base and the fixing base are relatively insulated, the ultrasonic welding head is in contact with the welding base to form a current path, a resistance welding loop is formed, and the ultrasonic welding head is connected with the welding base to introduce resistance heat energy to the foil and the current collector so as to enhance ultrasonic welding.
3. Stable electrical connection. When the welding seat is installed on the fixed seat, the first conductive column is in contact with the second conductive column and is abutted and pressed by gravity, the disc spring located at one end of the second conductive column is always kept in a pressed state between the second cushion block and the second conductive column, and the elastic potential of the disc spring exerts acting force towards the first conductive column on the second conductive column, so that the first conductive column and the second conductive column are always kept in electric connection.
4. The safety performance of the device is high. The third cushion block is used for insulating the end, far away from the welding seat, of the second conductive column from the second cushion block, so that the risk of electric shock caused by contact between an operator and the second cushion block in the process of electrically connecting the second electrode lead and the second conductive column is reduced; first insulating cover and second gasket are mutually supported, carry out relative insulating treatment to bolt and welding seat, and further strengthened the insulating treatment between welding seat and the fixing base, avoided the situation of short circuit to take place, and insulating treatment has improved the security of operating personnel in the welding operation process simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view of the structure of a prominent ultrasonic horn of an embodiment of the present application;
FIG. 3 is a schematic view of a solder socket assembly according to an embodiment of the present application;
FIG. 4 is a cross-sectional view of a bump-pad assembly according to an embodiment of the present application.
Description of reference numerals:
1. a frame; 11. a drive assembly; 12. an electrode fixing block; 2. an ultrasonic horn; 21. a vibration node; 22. a transmission end; 23. welding the end; 231. a rack; 24. connecting holes; 3. a solder seat assembly; 31. welding a base; 311. a first column accommodating cavity; 312. a first insulating sleeve; 313. a first accommodating groove; 314. a first gasket; 315. a second gasket; 32. a first conductive post; 33. a fixed seat; 331. a second column accommodating cavity; 332. a second cushion block; 333. a disc spring; 334. a second accommodating groove; 335. a third insulating sleeve; 336. an insulating sheet; 337. a third cushion block; 34. a second conductive post; 341. a second insulating sleeve; 35. a first cushion block; 4. a resistance welding electrode; 41. a first electrode lead; 42. a second electrode lead.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a resistance heat auxiliary ultrasonic welding device.
Referring to fig. 1, a resistance heat-assisted ultrasonic welding device includes a frame 1, an ultrasonic horn 2 for transmitting ultrasonic energy, a horn base assembly 3 for ultrasonic welding in cooperation with the ultrasonic horn 2, and a resistance welding electrode 4; the ultrasonic welding head 2 and the welding seat assembly 3 are installed on the frame 1, the resistance welding electrode 4 comprises a first electrode lead 41 and a second electrode lead 42, the first electrode lead 41 is installed on the ultrasonic welding head 2, and the second electrode lead 42 is installed on the welding seat assembly 3. In the present embodiment, the ultrasonic horn 2 is located above the welding seat assembly 3, and the foil and the current collector are located on the welding seat assembly 3. The first electrode lead 41 of the resistance welding is arranged on the ultrasonic welding head 2, the second electrode lead 42 of the resistance welding is arranged on the welding seat component 3, when the ultrasonic welding head 2 contacts with the welding seat component 3 to form a current path, the foil and the current collector are subjected to ultrasonic welding and simultaneously form a resistance welding loop, the compatibility problem of the ultrasonic welding and the resistance welding is realized, and the composite effect of the functions of the ultrasonic welding and the resistance welding is achieved.
The machine frame 1 is provided with a driving assembly 11 and an electrode fixing block 12, wherein the driving assembly 11 is used for providing ultrasound and driving the ultrasonic welding head 2 to be connected with the welding seat assembly 3, and the driving assembly 11 and the electrode fixing block 12 are both fixedly connected with the machine frame 1. In this embodiment, the electrode fixing block 12 is rectangular, and the electrode fixing block 12 is provided with an avoidance hole through which the ultrasonic welding head 2 passes and is mounted on the rack 1.
Referring to fig. 1 and 2, the end of the ultrasonic horn 2 where the driving assembly 11 is installed is a transmitting end 22, and the transmitting end 22 is used for transmitting ultrasonic waves; the end far away from the input end 22 is a welding end 23, and the welding end 23 is matched with the welding seat component 3 for pressing the foil and the current collector and completing welding. In the present embodiment, the ultrasonic horn 2 is a half-wave horn, and the section of the ultrasonic horn 2 is substantially in a transverse T shape. The ultrasonic horn 2 has a node 21 of vibration, the amplitude of the node 21 of vibration being close to zero, the horn amplitude increasing in the region away from the node 21 of vibration. The vibration node 21 of the sonotrode 2 is located between the input end 22 and the welding end 23.
Referring to fig. 2, further, in order to reduce the influence of the first electrode lead 41 on the frequency and amplitude characteristics of the ultrasonic horn 2, the vibration node 21 of the ultrasonic horn 2 is provided with an electrode connection portion, the outer ring of the electrode connection portion vibrates weakly and is not influenced by the vibration of the ultrasonic horn 2, and the electrode connection portion satisfies the poisson effect of the vibration of the ultrasonic horn 2. In the present embodiment, the electrode connection portion is disposed in a circular ring shape, and two cavities with opposite openings are disposed inside the electrode connection portion, and the two cavities are disposed in concentric circles, and the cavities are used for weakening the amplitude and the vibration frequency generated by the ultrasonic horn 2.
The electrode fixing block 12 is fixed to the outer ring of the electrode connecting portion of the vibration node 21, so that the first electrode lead 41 is fixed to the outer ring of the electrode connecting portion through the electrode fixing block 12 without affecting the frequency and amplitude characteristics of the ultrasonic horn 2, and the effect that the ultrasonic horn 2 is compatible with the resistance welding first electrode lead 41 is achieved.
In the present embodiment, the welding ends 23 are located on both sides of the central axis of the ultrasonic horn 2 and are symmetrically distributed, which increases the economy of the ultrasonic horn 2. The welding end 23 is provided with a rack 231 for increasing the friction force between the ultrasonic welding head 2 and the foil, and the rack 231 increases the friction force between the ultrasonic welding head 2 and the foil, so that the stability of ultrasonic welding between the foil and the fluid collector is enhanced. The welding end 23 is also provided with a connecting hole 24, and the ultrasonic welding head 2 is fixedly connected with the rack 1 through the connecting hole 24 in a penetrating mode through a pin shaft, so that the installation stability of the ultrasonic welding head 2 is enhanced.
Referring to fig. 1 and 4, the pad assembly 3 includes a pad 31, a first conductive pillar 32, a fixed seat 33, a second conductive pillar 34, and a first pad 35 for insulation. The welding seat 31 is used for bearing a foil material and a current collector, the first conductive column 32 is used for conducting electricity to the welding seat 31, the fixed seat 33 is used for installing the welding seat 31, the second conductive column 34 is used for conducting electricity to the fixed seat 33, and the first cushion block 35 is installed between the welding seat 31 and the fixed seat 33 and used for forming relative insulation between the welding seat 31 and the fixed seat 33; fixing base 33 and frame 1 fixed connection, first cushion 35 and welding seat 31 are located the one end that fixing base 33 kept away from frame 1, and welding seat 31 can dismantle with fixing base 33 and be connected.
Referring to fig. 3 and 4, the welding seat 31 is substantially in a convex block shape, the fixing seat 33 is substantially in a rectangular shape, the welding seat 31 is provided with a first column accommodating cavity 311, the first conductive column 32 is located in the first column accommodating cavity 311, the fixing seat 33 is provided with a second column accommodating cavity 331, the second column accommodating cavity 331 is communicated with the first column accommodating cavity 311, the second conductive column 34 is located in the second column accommodating cavity 331 and is in contact with the first conductive column 32, and the second electrode lead 42 of the resistance welding is electrically connected with the second conductive column 34. The first electrode lead 41 is electrically connected with the electrode fixing block 12 to electrify the ultrasonic welding head 2, the second electrode lead 42 is connected with the second conductive pillar 34, current passes through the second conductive pillar 34, so that the first conductive pillar 32 in contact with the second conductive pillar 34 is conductive, so that the welding base 31 is also electrified, the first cushion block 35 is positioned between the welding base 31 and the fixed base 33, so that the welding base 31 and the fixed base 33 are relatively insulated, the ultrasonic welding head 2 is in contact with the welding base 31 to form a current path to form a resistance welding loop, and the ultrasonic welding head 2 is connected with the welding base 31 to introduce resistance heat energy to foil and current collector to enhance ultrasonic welding.
In order to enhance the installation stability between the soldering receptacle 31 and the fixing seat 33, the soldering receptacle 31 is provided with a first gasket 314 and a first receiving groove 313 for receiving a bolt, the first gasket 314 is located at an opening end of the first receiving groove 313, one end of the bolt contacts and presses against the first gasket 314, and the bolt penetrates through the first gasket 314 and the first receiving groove 313 so that the soldering receptacle 31 and the first cushion block 35 are connected with the fixing seat 33. In the present embodiment, the first spacers 314 are provided in two groups, and each group of the first spacers 314 is provided with three mounting holes for mounting bolts; the first receiving groove 313 is provided with six groups, and six groups of receiving grooves are symmetrically distributed on two sides of the central axis of the welding seat 31 in every three rows at equal intervals, and the six groups of receiving grooves are in one-to-one correspondence with the six mounting holes respectively.
Further, a first insulating sleeve 312 sleeved on the periphery of the bolt is arranged in the first accommodating groove 313, the first insulating sleeve 312 is located in the first accommodating groove 313, a second gasket 315 is arranged between the first gasket 314 and the welding seat 31, and the first insulating sleeve 312 and the second gasket 315 are made of insulating materials. In the embodiment, six sets of the first insulating sleeves 312 are disposed and correspond to the first receiving grooves 313 one by one, and two sets of the second pads 315 are disposed and correspond to the first pads 314 one by one. First insulating bush 312 and second gasket 315 mutually support, carry out insulation treatment between bolt and the welding seat 31, have avoided the condition of short circuit to take place, and insulation treatment has improved the security of operating personnel in the welding operation process simultaneously.
Referring to fig. 4, in order to effectively reduce the short circuit, the welding seat 31 and the ultrasonic welding head 2 are ensured to form a closed path to form a resistance welding loop. The second conductive pillar 34 is provided with a second insulating sleeve 341, and the second insulating sleeve 341 is sleeved on the periphery of the second conductive pillar 34; the fixing base 33 is provided with a third insulating sleeve 335 and an insulating sheet 336, the third insulating sleeve 335 is located in the second accommodating groove 334, the outer peripheral wall of the disc spring 333 is sleeved with the third insulating sleeve 335, the insulating sheet 336 is located at the bottom of the second accommodating groove 334, and the insulating sheet 336 contacts with the second insulating sleeve 341. When the second conductive pillar 34 is energized, the second insulating sleeve 341 contacts with the third insulating sleeve 335 through the insulating sheet 336, so as to achieve a relative insulating effect between the second conductive pillar 34 and the fixing base 33.
The fixing base 33 is disposed with a second pad 332, a disc spring 333 and a second receiving groove 334, the disc spring 333 is located in the second receiving groove 334, one end of the disc spring 333 contacts and presses against the second pad 332, the other end of the disc spring 333 contacts and presses against the second conductive pillar 34, the second pad 332 is located at the opening of the second receiving groove 334, and the second pad 332 is fixedly connected to the fixing base 33. When the soldering socket 31 is mounted on the fixing seat 33, the first conductive pillar 32 contacts with the second conductive pillar 34 and is pressed by gravity, the disc spring 333 located at one end of the second conductive pillar 34 is always in a pressed state between the second pad 332 and the second conductive pillar 34, and the elastic potential of the disc spring 333 applies an acting force towards the first conductive pillar 32 to the second conductive pillar 34, so that the first conductive pillar 32 and the second conductive pillar 34 are always electrically connected, and the stability of the electrical connection of the soldering socket 31 is enhanced; on the other hand, the welding seat 31 is a loss part, so that the stability of electric connection of the welding seat 31 is ensured when the welding seat 31 is replaced.
For the security performance that improves the device, fixing base 33 still is provided with third cushion block 337, and third cushion block 337 is located the one end that welds seat 31 is kept away from to second cushion block 332, and the second is led electrical pillar 34 to wear to establish third cushion block 337 and is connected with third cushion block 337, and third cushion block 337 is made for insulating material. In this embodiment, the third cushion block 337 is located on the end surface of the fixed seat 33 facing the ground, and the third cushion block 337 and the second cushion block 332 are fixedly connected to the fixed seat 33 through bolts. The third pad 337 insulates the end of the second conductive pillar 34 away from the solder socket 31 from the second pad 332, so that the risk of electric shock due to contact between the operator and the second pad 332 during the process of electrically connecting the second electrode lead 42 and the second conductive pillar 34 is reduced.
The implementation principle of the resistance heat auxiliary ultrasonic welding device in the embodiment of the application is as follows: the first electrode lead 41 is electrically connected with the ultrasonic welding head 2 through the electrode fixing block 12 to electrify the ultrasonic welding head 2, the second electrode lead 42 is connected with the second conductive pillar 34, the current passes through the second conductive pillar 34 to enable the first conductive pillar 32 in contact with the second conductive pillar 34 to be conductive, so that the welding seat 31 is electrified, and the first cushion block 35 is located between the welding seat 31 and the fixed seat 33 to enable the welding seat 31 and the fixed seat 33 to be relatively insulated; the second insulating sleeve 341, the insulating sheet 336 and the third insulating sleeve 335 insulate the second conductive copper column from the fixed seat 33, so that only the welding seat 31 has current, the ultrasonic welding head 2 contacts with the welding seat 31 to form a current path to form a resistance welding loop, and the ultrasonic welding head 2 is connected with the welding seat 31 to introduce resistance heat energy to the foil and the current to enhance ultrasonic welding.
The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the present application in any way, wherein like reference numerals refer to like parts throughout, it being understood that the words "inner" and "outer" used in the description above refer to directions toward and away from, respectively, the geometric center of the particular part. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A resistance heat-assisted ultrasonic welding device is characterized by comprising,
the ultrasonic diagnosis device comprises a rack (1), wherein the rack (1) is provided with a driving assembly (11) for providing ultrasonic and an electrode fixing block (12);
the ultrasonic welding head (2) is used for transmitting ultrasonic energy, the ultrasonic welding head (2) is mounted on the rack (1) and is positioned at the output end of the driving assembly (11), the ultrasonic welding head (2) is provided with a vibration node (21), and the electrode fixing block (12) is fixedly connected with the vibration node (21);
the welding seat assembly (3) is used for being matched with the ultrasonic welding head (2) and comprises a welding seat (31) used for bearing foil and a current collector, a first conductive column (32), a fixed seat (33), a second conductive column (34) and a first cushion block (35) used for insulation, wherein the first cushion block (35) is installed between the welding seat (31) and the fixed seat (33), the welding seat (31) is provided with a first column accommodating cavity (311), and the first conductive column (32) is located in the first column accommodating cavity (311); the fixed seat (33) is provided with a second column accommodating cavity (331), the second column accommodating cavity (331) is communicated with the first column accommodating cavity (311), and the second conductive column (34) is positioned in the second column accommodating cavity (331) and is in contact with the first conductive column (32);
and the resistance welding electrode (4) comprises a first electrode lead (41) and a second electrode lead (42), the first electrode lead (41) is electrically connected with the electrode fixing block (12), and the second electrode lead (42) is electrically connected with the second conductive column (34).
2. A resistance heat assisted ultrasonic welding apparatus according to claim 1, wherein said vibration node (21) is provided with an electrode connection portion for reducing an influence of said first electrode lead (41) on an amplitude and a frequency of said ultrasonic horn (2), and said electrode fixing block (12) is fixed to an outer periphery of said electrode connection portion of said vibration node (21).
3. A resistance heat assisted ultrasonic welding device according to claim 1, wherein said fixing base (33) is provided with a second pad (332), a disc spring (333) and a second receiving slot (334), said disc spring (333) is located in said second receiving slot (334), one end of said disc spring (333) contacts and presses against said second pad (332), the other end of said disc spring (333) contacts and presses against said second conductive pillar (34), said second pad (332) is located at the opening of said second receiving slot (334), and said second pad (332) is fixedly connected with said fixing base (33).
4. A resistance heat assisted ultrasonic welding device according to claim 3, wherein said fixed base (33) is further provided with a third pad (337), said third pad (337) is located at an end of said second pad (332) away from said welding base (31), said second conductive pillar (34) penetrates said third pad (337) and is connected with said third pad (337), and said third pad (337) is made of an insulating material.
5. A resistance heat assisted ultrasonic welding device according to claim 1, wherein said welding seat (31) is provided with a first gasket (314) and a first accommodating groove (313) for accommodating a bolt, said first gasket (314) is located at an opening end of said first accommodating groove (313), a bolt is inserted through said first gasket (314) and said first accommodating groove (313) so that said welding seat (31) and said first cushion block (35) are connected with said fixed seat (33), and one end of the bolt is contacted with and pressed against said first gasket (314).
6. A resistance heat auxiliary ultrasonic welding device according to claim 5, characterized in that a first insulating sleeve (312) sleeved on the periphery of the bolt is arranged in the first accommodating groove (313), the first insulating sleeve (312) is arranged in the first accommodating groove (313), a second gasket (315) is arranged between the first gasket (314) and the welding seat (31), and the first insulating sleeve (312) and the second gasket (315) are made of insulating materials.
7. A resistance heat auxiliary ultrasonic welding device according to claim 3, wherein said second conductive pillar (34) is provided with a second insulating sleeve (341), said second insulating sleeve (341) is sleeved on the periphery of the second conductive pillar (34); fixing base (33) are provided with third insulating cover (335) and insulating piece (336), third insulating cover (335) are located in second holding tank (334), just third insulating cover (335) cover is located dish spring (333) periphery wall, insulating piece (336) are located second holding tank (334) tank bottom, just insulating piece (336) with second insulating cover (341) contact.
8. A resistance heat assisted ultrasonic welding device according to claim 1, wherein the ultrasonic horn (2) has a welding end (23), said welding end (23) being provided with a toothed rack (231) for increasing the friction between the ultrasonic horn (2) and the foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221291403.2U CN217618532U (en) | 2022-05-26 | 2022-05-26 | Resistance heat-assisted ultrasonic welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221291403.2U CN217618532U (en) | 2022-05-26 | 2022-05-26 | Resistance heat-assisted ultrasonic welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217618532U true CN217618532U (en) | 2022-10-21 |
Family
ID=83655622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221291403.2U Active CN217618532U (en) | 2022-05-26 | 2022-05-26 | Resistance heat-assisted ultrasonic welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217618532U (en) |
-
2022
- 2022-05-26 CN CN202221291403.2U patent/CN217618532U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4588331B2 (en) | Square battery and manufacturing method thereof | |
| CN208787746U (en) | A kind of weld assembly and device | |
| US20190319375A1 (en) | Joining a Terminal Element with a Stranded Conductor | |
| CN217618532U (en) | Resistance heat-assisted ultrasonic welding device | |
| CN114833446B (en) | Full laser welding manufacturing method for battery | |
| JP3311173B2 (en) | Electric motor and manufacturing method thereof | |
| CN107331826B (en) | Connection method of power battery pack and battery pack produced by using same | |
| CN110497082A (en) | A kind of cylindrical lithium ion battery cathode ear and battery case laser welding connect technique | |
| CN211219129U (en) | Charger assembly equipment and charger production line | |
| CN217433407U (en) | Novel resistance heat auxiliary ultrasonic welding device | |
| CN110116262B (en) | Welding tooling equipment | |
| CN108127273B (en) | Cover plate, welding system and welding method | |
| CN115206691A (en) | Super capacitor and lead-out wire welding process thereof | |
| CN216529234U (en) | Battery structure | |
| CN217215265U (en) | Cable sealing structure capable of releasing stress and vehicle | |
| CN112894116B (en) | Ultrasonic welding head and ultrasonic welding device | |
| CN109514063A (en) | A kind of motor winding welding technique | |
| CN112548280A (en) | Automatic welding device | |
| CN213794772U (en) | Special electrode structure for welding railway safety relay silver contact | |
| CN210576188U (en) | Copper bar flexible connection structure with high oxidation resistance | |
| KR20220039602A (en) | Method for manufacturing a wiring system, and wiring system | |
| CN214640983U (en) | Welding mechanism and welding equipment | |
| CN218334573U (en) | Via hole connection structure | |
| CN214185680U (en) | Automatic welding device | |
| CN212681603U (en) | Integrated amplitude transformer and ultrasonic welding device comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |