CN112372132B - Connecting structure of ultrasonic welding head - Google Patents
Connecting structure of ultrasonic welding head Download PDFInfo
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- CN112372132B CN112372132B CN202010872129.7A CN202010872129A CN112372132B CN 112372132 B CN112372132 B CN 112372132B CN 202010872129 A CN202010872129 A CN 202010872129A CN 112372132 B CN112372132 B CN 112372132B
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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
- B23K20/106—Features related to sonotrodes
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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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Abstract
The ultrasonic welding structure comprises a connecting structure of welding heads for ultrasonic welding, wherein each welding head comprises a pre-welding head and a main welding head; the welding head connecting module comprises a module main body, an upper module split body and a lower module split body; the upper surface of the upper split body of the module and the lower surface of the lower split body of the module are uniformly provided with a plurality of interference welding heads or a plurality of main welding heads. The main welding heads in each main welding head group are at least protruded on the upper surface of the upper split body of the module or the lower surface of the lower split body of the module in a row, and the row of the main welding heads is parallel to the row of the pre-welding heads; a main welding head group is arranged between vertical planes defined by adjacent edges of the two rows of pre-welding heads. The invention has the advantages of reasonable structure, convenient use and maintenance, low processing, manufacturing and using cost and the like.
Description
Technical Field
The invention relates to the technical field of ultrasonic welding, in particular to a connecting structure of a welding head for ultrasonic welding.
Background
Ultrasonic welding is to transmit high-frequency (frequency > 16 Hz) vibration waves to the surfaces of two objects to be welded, and to enable the surfaces of the two objects to rub against each other under the condition of pressurization to form fusion between molecular layers; the ultrasonic pre-welding is to weld a plurality of layers of Tab foils together, and after cutting, the foil tabs which are pre-welded are conveniently welded with Tab (Tab leading sheet); the ultrasonic wave main welding is to weld prewelded foils (multilayer Tab foil) and Tab (Tab leading sheet) together. Ultrasonic welding is a sonic grinding tool, commonly known as an ultrasonic transmitter, that couples ultrasonic waves generated by a transducer into an object being machined. In order to transmit the mechanical vibrations of the welding head to the workpiece, the welding region of the ultrasonic welding head is often provided with corresponding texturing, so-called insection. The welding head in the ultrasonic welding equipment is an important component of the ultrasonic welding equipment, and is directly related to the transmission effect of an ultrasonic generator and the welding effect of a contact surface.
Application No. 201110395148.6, application publication No. CN 102513686 a, entitled "ultrasonic welding head, ultrasonic welding equipment with ultrasonic welding head and method for welding battery tab using the ultrasonic welding equipment" disclose an ultrasonic welding head, which is in a tapered conical structure from bottom to top, and the top of the welding head is a plane, and a plurality of welding heads are distributed on the upper module of the ultrasonic welding equipment in an integrated structure with the upper module of the ultrasonic welding equipment according to a certain rule. There are problems in that: the ultrasonic welding head is worn in use to a certain extent, and the welding head of the application has to be replaced together with the upper module, so that the use cost is increased.
Disclosure of Invention
The invention mainly aims to provide a connecting structure of an upper module and a welding head of ultrasonic welding equipment, which can solve the problems of main welding shatter pre-welding print, easy foil cracking in the overlapping area of the main welding print and the pre-welding print and the like of a power lithium ion battery in ultrasonic welding.
The technical scheme adopted by the invention is as follows: a connecting structure of a welding head for ultrasonic welding, wherein the welding head comprises a pre-welding head for pre-welding and a main welding head for main welding; the welding head connecting module comprises a module main body, an upper module split body and a lower module split body; the upper module split body and the lower module split body are detachably and fixedly connected with the module main body, the upper surface of the upper module split body is positioned right above the lower surface of the lower module split body, and the upper surface of the upper module split body and the lower surface of the lower module split body are parallel and congruent; the upper surface of the upper module split body and the lower surface of the lower module split body are both provided with a plurality of interference welding heads or main welding heads, and the interference welding heads or the main welding heads are connected with the upper module split body and the lower module split body into an integral structure and are protruded on the upper surface of the upper module split body and below the lower surface of the lower module split body in rows and columns; the pre-welding heads or the main welding heads fixed on the upper surface of the upper module split body and the lower surface of the lower module split body are aligned up and down; the main welding heads arranged on the upper surface of the upper split body of the module and the lower surface of the lower split body of the module are divided into a plurality of main welding head groups, the main welding heads in each main welding head group are protruded on the upper surface of the upper split body of the module and below the lower surface of the lower split body of the module in a row at least, and the rows of the main welding heads and the rows of the pre-welding heads are parallel to each other; the main welding heads in each main welding head group are arranged between the vertical planes defined by the adjacent edges of the two rows of pre-welding heads and are not in contact with the two vertical planes.
The spacing between two adjacent preliminary welding heads of a row of preliminary welding heads is equal, and the ultrasonic welding head connecting module with the preliminary welding heads and the ultrasonic welding head connecting module with the main welding head are identical. During the use, what the prewelding station was equipped with is equipped with the ultrasonic bonding tool linking module of prewelding head, what main welding station was equipped with is equipped with the ultrasonic bonding tool linking module of main welding head, the work piece is taken main welding station to carry out the main welding again after the prewelding is accomplished at the prewelding station, the welding process parameter of prewelding and main welding is different, the welding point of main welding head and the welding point of prewelding head also alternate segregation, consequently, carry out main welding again after the prewelding and can not influence welded whole quality, consequently, welded whole success rate can be greatly improved, thereby reduction in production cost. Particularly, once the preliminary welding head and the main welding head need to be replaced, only the corresponding upper module split body and the corresponding lower module split body which are integrated with the preliminary welding head and the main welding head are needed to be replaced, so that the consumption cost of corresponding production materials can be greatly reduced.
Preferably, the module upper part, the module lower part and the module body are plated with an electroplating layer on the surfaces contacting each other. The preferred scheme is favorable for improving the conductivity among the upper split body of the module, the lower split body of the module and the module main body, thereby improving the working reliability of the invention.
Preferably, the module upper split body and the module lower split body are detachably and fixedly connected with the module main body through a plurality of screws. The detachable fixed connection optional schemes of the upper module split, the lower module split and the main module body are undoubtedly selected by a plurality of known schemes.
Preferably, the number of main welding heads in each main welding head column is equal to the number of preliminary welding heads in each preliminary welding head column. Further preferably, the preliminary horn and the main horn are identical in shape. According to the optimal scheme, the reasonable layout of the main welding head and the pre-welding head is beneficial to reducing the processing, manufacturing and using cost of the welding head on the premise of ensuring the using quality.
In conclusion, the invention has the advantages of reasonable structure, convenient use and maintenance, low processing, manufacturing and using cost and the like.
Drawings
FIG. 1: a schematic front view of a connecting structure of a welding head connecting module and a pre-welding head for ultrasonic welding;
FIG. 2: an overhead schematic view of a connecting structure of an ultrasonic welding head connecting module and a pre-welding head;
FIG. 3: a schematic front view of a connecting structure of a welding head connecting module and a main welding head for ultrasonic welding;
FIG. 4: an overhead view of the connection structure of the ultrasonically welded horn connection module and the main horn;
the dotted lines in fig. 2 and fig. 4 respectively represent the pre-welding head and the main welding head which are positioned on the lower split body of the module, the pre-welding head and the main welding head which run left and right respectively form a pre-welding head column and a main welding head column, and the pre-welding head and the main welding head which run front and back respectively form a corresponding pre-welding head row and a corresponding main welding head row.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, in the present invention, the welding head 1 comprises a pre-welding head 1.1 for pre-welding and a main welding head 1.2 for main welding; the welding head connecting module 2 comprises a module main body 2.1, a module upper split body 2.2 and a module lower split body 2.3; the upper module split body 2.2 and the lower module split body 2.3 are detachably and fixedly connected with the main module body 2.1, the upper surface of the upper module split body 2.2 is positioned right above the lower surface of the lower module split body 2.3, and the upper surface of the upper module split body 2.2 and the lower surface of the lower module split body 2.3 are parallel and congruent; the upper surface of the upper module split body 2.2 and the lower surface of the lower module split body 2.3 are both provided with a plurality of interference welding heads 1.1 or main welding heads 1.2, and the pre-welding heads 1.1 or the main welding heads 1.2 are connected with the upper module split body 2.2 and the lower module split body 2.3 into an integral structure and are protruded on the upper surface of the upper module split body 2.2 and below the lower surface of the lower module split body 2.3 in rows and columns; the prewelding heads 1.1 or the main welding heads 1.2 fixed on the upper surface of the upper module split body 2.2 and the lower surface of the lower module split body 2.3 are aligned up and down; the main welding heads 1.2 arranged on the upper surface of the upper module split body 2.2 and the lower surface of the lower module split body 2.3 are divided into a plurality of main welding head groups, the main welding heads 1.2 in each main welding head group are at least protruded on the upper surface of the upper module split body 2.2 and below the lower surface of the lower module split body 2.3 in a line (the embodiment is a line), and the line of the main welding heads 1.2 and the line of the pre-welding heads 1.1 are parallel to each other; the main welding heads 1.2 in each main welding head group are arranged between the vertical planes defined by the adjacent edges of the two rows of preliminary welding heads 1.1 and are not in contact with the two vertical planes.
Preferably, the module upper part 2.2, the module lower part 2.3 and the module main body 2.1 are all plated with an electroplated layer on the surfaces contacting each other. The upper split 2.2 and the lower split 2.3 of the module are detachably and fixedly connected with the main body 2.1 of the module by a plurality of screws 3. The number of main welding heads 1.2 in each main welding head column is equal to the number of pre-welding heads 1.1 in each pre-welding head column. The shapes of the preliminary welding head 1.1 and the main welding head 1.2 are identical, and are all one of a quadrangular frustum pyramid shape, a hexagonal frustum pyramid shape, a circular frustum shape or a cylindrical shape.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.
Claims (4)
1. The utility model provides a connection structure of ultrasonic bonding's bonding tool which characterized by: the welding head (1) comprises a pre-welding head (1.1) for pre-welding and a main welding head (1.2) for main welding; the welding head connecting module (2) comprises a module main body (2.1), an upper module split body (2.2) and a lower module split body (2.3); the upper module split body (2.2) and the lower module split body (2.3) are detachably and fixedly connected with the main module body (2.1), the upper surface of the upper module split body (2.2) is positioned right above the lower surface of the lower module split body (2.3), and the upper surface of the upper module split body (2.2) and the lower surface of the lower module split body (2.3) are parallel and congruent; the upper surface of the upper module split body (2.2) and the lower surface of the lower module split body (2.3) are both provided with a plurality of interference welding heads (1.1) or main welding heads (1.2), and the pre-welding heads (1.1) or the main welding heads (1.2) are connected with the upper module split body (2.2) and the lower module split body (2.3) into an integral structure and are protruded on the upper surface of the upper module split body (2.2) and below the lower surface of the lower module split body (2.3) in rows and columns; the pre-welding heads (1.1) or the main welding heads (1.2) fixed on the upper surface of the upper module split body (2.2) and the lower surface of the lower module split body (2.3) are aligned up and down; the main welding heads (1.2) arranged on the upper surface of the upper module split body (2.2) and the lower surface of the lower module split body (2.3) are divided into a plurality of main welding head groups, the main welding heads (1.2) in each main welding head group are protruded on the upper surface of the upper module split body (2.2) and below the lower surface of the lower module split body (2.3) at least in a row, the rows of the main welding heads (1.2) and the rows of the pre-welding heads (1.1) are parallel to each other, and the shapes of the pre-welding heads (1.1) and the main welding heads (1.2) are identical; the main welding heads (1.2) in each main welding head group are arranged between the vertical planes defined by the adjacent edges of the two rows of pre-welding heads (1.1) and are not contacted with the two vertical planes.
2. The ultrasonic-welded bonding tool joint structure as set forth in claim 1, wherein: the module upper split body (2.2), the module lower split body (2.3) and the module main body (2.1) are plated with an electroplated layer on the surfaces which are mutually contacted.
3. The ultrasonic-welded bonding tool joint structure as set forth in claim 1, wherein: the upper split (2.2) and the lower split (2.3) of the module are detachably and fixedly connected with the main body (2.1) of the module by a plurality of screws (3).
4. The ultrasonic-welded bonding tool joint structure as set forth in claim 1, wherein: the number of main welding heads (1.2) in each main welding head column is equal to the number of preliminary welding heads (1.1) in each preliminary welding head column.
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CN114536026B (en) * | 2021-10-26 | 2023-05-05 | 万向一二三股份公司 | Welding tooth processing structure of welding head for welding lithium ion battery |
CN114535773A (en) * | 2021-10-28 | 2022-05-27 | 万向一二三股份公司 | Ultrasonic welding device and ultrasonic welding method |
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JP3234520B2 (en) * | 1997-01-07 | 2001-12-04 | 株式会社オートネットワーク技術研究所 | Ultrasonic welding equipment |
CN107234329B (en) * | 2017-05-25 | 2020-08-18 | 河南力旋科技股份有限公司 | Method for welding tab of soft-packaged battery cell |
JP6921646B2 (en) * | 2017-06-27 | 2021-08-18 | 株式会社リブドゥコーポレーション | Ultrasonic welding device |
CN208528303U (en) * | 2018-07-03 | 2019-02-22 | 东莞矩华超声技术有限公司 | Wave welding head of ultrasonic wave |
CN209006870U (en) * | 2018-09-19 | 2019-06-21 | 珠海市新维焊接器材有限公司 | Flexible-packed battery tab device for ultrasonic welding and its soldering tip |
CN210099211U (en) * | 2019-05-21 | 2020-02-21 | 宁德时代新能源科技股份有限公司 | Welding head and ultrasonic welding device |
CN210125798U (en) * | 2019-05-21 | 2020-03-06 | 宁德时代新能源科技股份有限公司 | Welding head and ultrasonic welding device |
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Effective date of registration: 20211111 Address after: 311215 No. 855, Jianshe Second Road, economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Wanxiang 123 Co., Ltd Address before: 311215 No. 855, Jianshe Second Road, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: Wanxiang 123 Co., Ltd Applicant before: Wanxiang Group Co., Ltd |
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