WO2024066239A1 - 一种焊接定位装置 - Google Patents

一种焊接定位装置 Download PDF

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Publication number
WO2024066239A1
WO2024066239A1 PCT/CN2023/082717 CN2023082717W WO2024066239A1 WO 2024066239 A1 WO2024066239 A1 WO 2024066239A1 CN 2023082717 W CN2023082717 W CN 2023082717W WO 2024066239 A1 WO2024066239 A1 WO 2024066239A1
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WO
WIPO (PCT)
Prior art keywords
welding
main body
positioning device
dust
component
Prior art date
Application number
PCT/CN2023/082717
Other languages
English (en)
French (fr)
Inventor
刘坤
宋雷
钟光成
谌小文
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP23736587.9A priority Critical patent/EP4375005A1/en
Priority to US18/221,883 priority patent/US20240100620A1/en
Publication of WO2024066239A1 publication Critical patent/WO2024066239A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • 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

Definitions

  • the present application relates to the technical field of battery manufacturing, and in particular to a welding positioning device.
  • the adapter plate needs to be welded to the top cover so that the tabs in the electrode assembly can be led out to the electrode terminals on the top cover through the adapter plate to realize the input and output of electrical energy in the battery cell.
  • the dust generated will not only affect the welding quality, but also contaminate the battery cells and affect the performance of the battery cells.
  • the present application provides a welding positioning device for positioning a first component and a second component to be welded, the welding positioning device comprising:
  • a main body having a welding operation entrance formed therethrough;
  • the pressure head includes a connecting end and a positioning end which are arranged opposite to each other.
  • the connecting end is detachably assembled on one side of the main body and communicates with the welding operation inlet.
  • the positioning end presses the first component against the second component and is provided with a welding operation outlet which communicates with the position to be welded.
  • Part of the inner cavity in the pressure head is configured to define a welding channel with a welding operation inlet and a welding operation outlet, and the other part is configured as a dust collecting chamber connected to the welding channel;
  • At least one dust removal port connected to the dust collecting chamber is formed through the pressure head, and the dust removal port is used for transporting dust collected in the dust collecting chamber during welding.
  • the first component is pressed against the second component by the pressure head to achieve a stable connection between the two, and the welding channel provides a penetration path for the laser beam of laser welding, so that the laser beam can smoothly reach the welding position of the first component and the second component, and achieve smooth welding of the first component and the second component.
  • the dust collection chamber is connected to the welding channel. Under the premise of not affecting the welding process, the dust collection chamber can collect the dust generated during welding, and transport the dust to the welding positioning device through the dust removal port, so as to achieve dust removal during the welding process, ensure the cleanliness of the welding environment, and improve the welding quality.
  • the welding positioning device includes an elastic member, and the elastic member is deformably connected between the main body and the pressing head along the pressing direction of the pressing head.
  • the elastic member can make the connection between the first component and the second component more stable, making the welding process smoother.
  • the pressure head elastically presses against the first component and the second component, and the pressure of the pressure head on the first component and the second component can be more flexibly adjusted to improve the stability during positioning.
  • the welding positioning device includes a base plate and at least one dust extraction pipe.
  • a welding port is opened through the base plate.
  • the main body can be detachably assembled on one side of the base plate, and the welding operation inlet is opposite to and connected to the welding port.
  • Each dust extraction pipe is connected to and connected to each dust removal port.
  • the bottom plate can provide a mounting base for the main body.
  • the welding port on the bottom plate and the welding operation entrance provided on the main body are arranged opposite to each other and are connected to each other.
  • the dust extraction pipe can connect each dust removal port with an external dust extractor so that the dust in the dust collection chamber can be smoothly discharged under the action of the dust extractor.
  • the dust extraction pipe includes two dust extraction pipes, one of which is connected to one side of the pressure head along the direction intersecting the welding channel and connected to the dust collecting chamber, and the other dust extraction pipe is connected to the main body along the direction parallel to the welding channel and connected to the dust collecting chamber.
  • the above-mentioned structure can make the dust in the dust collecting chamber be removed more thoroughly, further ensure the cleanliness of the welding environment, and improve the welding quality.
  • the welding positioning device further includes a limiting member disposed on the bottom plate, the limiting member being connected between the bottom plate and the main body and being used to limit the main body on the bottom plate.
  • the main body can be quickly positioned on the bottom plate, thereby achieving a quick and accurate connection between the main body and the bottom plate.
  • the limiting member is constructed as a first positioning pin protruding from the bottom plate, and a first groove cooperating with the first positioning pin is provided on the surface of the main body facing the bottom plate.
  • the main body can be quickly positioned on the base plate, the position of the main body on the base plate can be quickly determined, and the assembly efficiency between the main body and the base plate can be improved.
  • the welding positioning device further includes a first movable member and a second movable member respectively arranged on both sides of the main body along a preset direction, and the first movable member and the second movable member jointly define an installation position with adjustable spacing along the preset direction for installing the main body.
  • the first movable member and the second movable member can limit the main body along a preset direction, so that the main body is more stably arranged on the bottom plate, thereby improving the connection stability between the main body and the bottom plate.
  • the first movable member and the second movable member are both configured as movable cylinders.
  • the main body when the movable cylinders are close to each other, the main body can be limited along a preset direction.
  • the main body is fixed on the bottom plate, thereby realizing the positioning of the first component and the second component.
  • a second positioning pin is protruding from the surface of the first movable part facing the main body, and a second groove cooperating with the second positioning pin is provided on the surface of the main body facing the first movable part; and/or a third positioning pin is protruding from the surface of the second movable part facing the main body, and a third groove cooperating with the third positioning pin is provided on the surface of the main body facing the second movable part.
  • the above structure can further improve the connection stability between the first movable member and the second movable member and the main body, so that the main body is more stably arranged on the bottom plate. Therefore, during the welding process, the main body can better accurately position the first component and the second component, making the welding process smoother.
  • the first component is constructed as a top cover of a battery cell
  • the second component is constructed as two adapter plates welded to the top cover in the battery cell
  • the two pressure heads are respectively used to position the two adapter plates on the top cover; wherein the two pressure heads are assembled at both ends of the main body along the length direction of the top cover.
  • two pressure heads can be respectively set corresponding to two adapter plates, and the adapter plates can be positioned one by one at the positive electrode terminal or the negative electrode terminal to facilitate welding of the adapter plates with the positive electrode terminal or the negative electrode terminal.
  • the welding positioning device further includes two movable cylinders disposed on the bottom plate, the two movable cylinders are installed on the bottom plate along the width direction of the top cover, and clamp or release the main body along the width direction of the top cover.
  • the two movable cylinders can clamp or loosen the main body along the width direction of the top cover so that the main body can be fixed in the installation position or the main body can be removed from the installation position to facilitate replacement of the main body.
  • the two dust extraction pipes are installed at opposite ends of the bottom plate along the length direction of the top cover, and are used to limit the main body along the length direction of the top cover.
  • the two dust extraction pipes can limit the main body along the length direction of the top cover, and when used together with the two movable cylinders, the main body can be stably limited in the installation position, so that the main body can be more stably used for positioning the top cover and the adapter during welding.
  • the two dust extraction pipes can be connected to the external dust extractor respectively, so as to realize the discharge of dust in two independent dust collecting chambers respectively. Therefore, during the dust removal process, the dust in the two independent dust collecting chambers does not affect each other, and the dust in the two dust collecting chambers can be prevented from interfering with each other, so that the dust removal effect is better.
  • the above-mentioned welding positioning device has a pressure head that can press the first component to be welded against the second component, so that the first component and the second component can be welded smoothly; while welding, the dust generated by welding can be collected in the dust collecting chamber, so that the dust can be discharged to the outside of the welding positioning device under the action of an external dust extractor, thereby keeping the welding environment clean and improving the welding quality.
  • timely cleaning of dust during welding can also avoid dust contamination of battery cells and improve the performance of battery cells.
  • FIG1 is a schematic diagram of the overall structure of a welding positioning device according to one or more embodiments.
  • FIG. 2 is a cross-sectional view of a welding positioning device according to one or more embodiments
  • FIG3 is a schematic structural diagram of a main body and a pressure head according to one or more embodiments
  • FIG4 is a schematic diagram of an exploded structure of a welding positioning device according to one or more embodiments.
  • FIG5 is a schematic diagram of an exploded structure of a welding positioning device according to one or more embodiments.
  • FIG6 is a schematic diagram of the structure of a main body and a pressure head according to one or more embodiments
  • FIG. 7 is a schematic structural diagram of the connection between the welding positioning device, the top cover and the adapter plate according to one or more embodiments.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships.
  • a and/or B can mean: A exists alone, A and B exist at the same time, and A exists alone. B.
  • the character "/" in this article generally indicates that the objects before and after are in an "or" relationship.
  • multiple refers to more than two (including two).
  • multiple groups refers to more than two groups (including two groups), and “multiple pieces” refers to more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.
  • a battery cell is the smallest unit that makes up a battery.
  • there can be multiple battery cells and multiple battery cells can be connected in series, in parallel, or in mixed connection.
  • Mixed connection means that multiple battery cells are connected in both series and in parallel.
  • the structure of a battery cell usually includes a top cover, a shell, an electrode assembly, and other functional components.
  • the top cover refers to a component that covers the opening of the shell to isolate the internal environment of the battery cell from the external environment.
  • the electrode assembly is the component in the battery cell where electrochemical reactions occur. It is mainly composed of positive and negative electrode sheets and a diaphragm disposed between the positive and negative electrode sheets.
  • the parts with active substances on the positive and negative electrode sheets constitute the main body of the electrode assembly, and the parts without active substances constitute the positive and negative electrode ears respectively.
  • Functional components such as electrode terminals can be provided on the top cover, and the positive and negative tabs on the electrode assembly are connected to the electrode terminals on the top cover through adapters to smoothly form a current loop during the charge and discharge process of the battery cell.
  • one or more embodiments of the present application provide a welding positioning device, which can remove dust and particles during welding.
  • the dust and particles generated during welding are discharged through the channel, which keeps the welding environment clean, improves the welding quality, and can prevent pollutants such as dust and particles from contaminating the battery cells, thereby improving the performance of the battery cells.
  • an embodiment of the present application provides a welding positioning device 100 for positioning a first component and a second component to be welded.
  • the welding positioning device 100 includes a main body 10 and a pressure head 20, and a welding operation inlet 11 is provided through the main body 10.
  • the pressure head 20 includes a connecting end 21 and a positioning end 22 arranged opposite to each other, the connecting end 21 is detachably assembled on one side of the main body 10 and communicates with the welding operation inlet 11, and the positioning end 22 presses the first component against the second component and is provided with a welding operation outlet 221 communicated with the position to be welded.
  • Part of the inner cavity 24 in the pressure head 20 is configured to define a welding channel with the welding operation inlet 11 and the welding operation outlet 221, and the other part is configured as a dust collecting chamber communicated with the welding channel.
  • At least one dust removal port 23 is provided through the pressure head 20 and communicated with the dust collecting chamber, and the dust removal port 23 is used to transport dust collected in the dust collecting chamber during welding.
  • the dust removal port 23 can be connected to an external dust extractor, and the dust collected in the dust collection chamber can be discharged through the dust extractor to ensure a clean welding environment.
  • the welding channel refers to a channel through which the laser beam of laser welding can pass smoothly to weld the first component to the upper structure of the second component.
  • connection end 21 of the pressure head 20 is detachably mounted on one side of the main body 10, and when the pressure head 20 is connected to the main body 10, the connection end 21 is communicated with the welding operation inlet 11. It can be understood that the connection end 21 can be set as an open end, and when the connection end 21 is mounted on one side of the main body 10, the opening of the connection end 21 is communicated with the welding operation inlet 11.
  • the contour shape of the positioning end 22 of the pressure head 20 can match the contour shape of the first component, so that the first component can be better and stably pressed against the second component.
  • a welding operation outlet 221 is provided on the positioning end 22 of the pressure head 20. When the positioning end 22 contacts the first component, the welding operation outlet 221 on the positioning end 22 is arranged opposite to the positions to be welded of the first component and the second component and is connected to each other.
  • the laser beam of laser welding can reach the welding position of the first component and the second component through the welding channel defined by the welding operation inlet 11, the partial inner cavity of the pressure head 20 and the welding operation outlet 221, thereby realizing smooth welding of the first component and the second component.
  • the first component is pressed against the second component by the pressure head 20 to achieve a stable connection between the two.
  • the welding channel provides a path for the laser beam of laser welding to pass through, so that the laser beam can smoothly reach the welding position of the first component and the second component, and achieve smooth welding of the first component and the second component.
  • the dust collecting chamber is connected to the welding channel. Under the premise of not affecting the welding process, the dust collecting chamber can collect the dust generated during welding, and transport the dust to the outside of the welding positioning device 100 through the dust removal port 23, so as to achieve dust removal during the welding process, ensure the cleanliness of the welding environment, and improve the welding quality.
  • the welding positioning device 100 includes an elastic member 30 , and the elastic member 30 is deformably connected between the main body 10 and the pressing head 20 along the pressing direction of the pressing head 20 .
  • the pressure head 20 presses the first component against the second component, since the pressure head 20, the first component and the second component are all rigid structures, if the pressure of the pressure head 20 is too large, the structure of the first component and the second component will be damaged. If the pressure of the pressure head 20 is too small, the connection between the first component and the second component will be unstable, affecting the Welding effect.
  • the elastic member 30 is deformably connected between the main body 10 and the pressing head 20 along the pressing direction of the pressing head 20, which can make the connection between the first component and the second component more stable and make the welding process smoother.
  • the pressing head 20 elastically presses against the first component and the second component, which can more flexibly adjust the pressing force of the pressing head 20 on the first component and the second component, thereby improving the stability during positioning.
  • the elastic member 30 can be configured as a spring, that is, a spring that can be deformed along the pressing direction of the pressing head 20 is provided between the main body 10 and the pressing head 20, so that the pressing head 20 can be elastically pressed against the first component and the second component. It can be understood that the elastic member 30 can also be configured as other elastic structures other than a spring, such as a rubber pad elastically connected between the pressing head 20 and the main body 10, etc., which will not be described in detail here.
  • the welding positioning device 100 includes a base plate 40 and at least one dust extraction pipe 50.
  • a welding port 41 is opened through the base plate 40.
  • the main body 10 is detachably assembled on one side of the base plate 40, and the welding operation inlet 11 is opposite to and connected to the welding port 41.
  • Each dust extraction pipe 50 is connected to and connected to each dust removal port 23.
  • the bottom plate 40 can provide a mounting base for the main body 10.
  • the welding port 41 on the bottom plate 40 is arranged opposite to and connected to the welding operation entrance 11 provided on the main body 10.
  • the laser beam during laser welding can smoothly enter the welding channel through the welding port 41 to achieve welding of the first component and the second component.
  • the dust extraction pipe 50 can connect each dust removal port 23 with an external dust extractor so that the dust in the dust collecting chamber can be discharged smoothly under the action of the dust extractor.
  • the dust extraction pipe 50 includes two dust extraction pipes 50, one of which is connected to one side of the pressure head 20 along a direction intersecting the welding channel and connected to the dust collecting chamber, and the other dust extraction pipe 50 is connected to the main body 10 along a direction parallel to the welding channel and connected to the dust collecting chamber.
  • each dust extraction pipe 50 when each dust extraction pipe 50 is respectively connected to an external vacuum cleaner, the dust extraction pipe 50 connected to one side of the pressure head 20 along a direction intersecting the welding channel can suck the dust in the dust collecting chamber along the direction intersecting the welding channel, and the dust extraction pipe 50 connected to the main body 10 along a direction parallel to the welding channel can suck the dust in the dust collecting chamber along the direction parallel to the welding channel.
  • the dust in the dust collecting chamber can be removed more thoroughly, further ensuring the cleanliness of the welding environment and improving the welding quality.
  • dust extraction pipes 50 there may be more than two dust extraction pipes 50, each of which is arranged along a direction intersecting with the welding channel and a direction parallel to the welding channel, so as to remove the dust in the dust collecting chamber more thoroughly.
  • the specific number of dust extraction pipes 50 can be adjusted according to actual usage, which will not be described in detail here.
  • the welding positioning device 100 further includes a stopper 60 disposed on the bottom plate 40 .
  • the stopper 60 is connected between the bottom plate 40 and the main body 10 to limit the main body 10 on the bottom plate 40 .
  • the main body 10 is detachably disposed on the bottom plate 40, so that the main body 10 and the bottom plate 40 can be
  • the connection is more flexible. Specifically, the shapes and sizes of different first components and second components may change during welding, so it is necessary to replace different main bodies 10 to achieve the pressing of different first components and second components, thereby improving the practicality of the welding positioning device 100.
  • the main body 10 can be quickly positioned on the bottom plate 40 , thereby achieving a quick and accurate connection between the main body 10 and the bottom plate 40 .
  • the limiting member 60 is constructed as a first positioning pin protruding from the bottom plate 40 , and a first groove cooperating with the first positioning pin is provided on the surface of the main body 10 facing the bottom plate 40 .
  • the first positioning pin is inserted into the first groove to realize the rapid positioning of the main body 10 on the base plate 40 , and the position of the main body 10 on the base plate 40 can be quickly determined, thereby improving the assembly efficiency between the main body 10 and the base plate 40 .
  • the welding positioning device 100 further includes a first movable member 70 and a second movable member 80 respectively disposed on both sides of the main body 10 along a preset direction a.
  • the first movable member 70 and the second movable member 80 jointly define an installation position with an adjustable spacing along the preset direction a for installing the main body 10.
  • the preset direction a is perpendicular to the penetration direction of the welding channel.
  • the first movable member 70 and the second movable member 80 are respectively arranged on opposite sides of the main body 10 along the preset direction a.
  • the spacing between the mounting positions in the preset direction a becomes smaller, and the main body 10 can be fixed to the mounting position by the first movable member 70 and the second movable member 80.
  • the spacing between the mounting positions in the preset direction a becomes larger, and the main body 10 can be taken out from the mounting position to facilitate the replacement of the main body 10.
  • first movable member 70 and the second movable member 80 are both configured as movable cylinders.
  • the main body 10 in the installation position can be limited along the preset direction a, so that the main body 10 is stably set in the installation position.
  • first movable member 70 and the second movable member 80 can also be set to other structures, for example, they can be set to telescopic rods located on opposite sides of the main body 10 along a preset direction a, and the telescopic rods on both sides can be extended in a direction close to the main body 10 to facilitate fixing the main body 10 at the installation position.
  • the surface of the first movable member 70 facing the main body 10 is provided with a second positioning pin 71, and the surface of the main body 10 facing the first movable member 70 is provided with a second groove 12 that matches the second positioning pin 71.
  • the surface of the second movable member 80 facing the main body 10 is provided with a third positioning pin 81, and the surface of the main body 10 facing the second movable member 80 is provided with a third groove 13 that matches the third positioning pin 81.
  • the second positioning pin 71 on the first movable member 70 is inserted into the second groove 12 on the main body 10, so that the connection between the main body 10 and the first movable member 70 is more stable and relative displacement between the two is avoided.
  • the third positioning pin 81 on the second movable member 80 is inserted into the third groove 13 on the main body 10, so that the connection between the main body 10 and the second movable member 80 is more stable and relative displacement between the two is avoided.
  • connection stability between the first movable member 70 and the second movable member 80 and the main body 10 can be further improved, so that the main body 10 is more stably arranged on the bottom plate 40. Therefore, during the welding process, the main body 10 can better accurately position the first component and the second component, so that the welding process is smoother.
  • the first component is configured as the top cover 200 of the battery cell
  • the second component is configured as two adapter plates 300 welded to the top cover 200 in the battery cell
  • the pressing head 20 includes two pressing heads 20, which are respectively used to position the two adapter plates 300 on the top cover 200.
  • the two pressing heads 20 are assembled at both ends of the main body 10 along the length direction of the top cover 200.
  • the welding positioning device 100 when the welding positioning device 100 is applied to the welding of the adapter 300 and the top cover 200 of the battery cell, since the top cover 200 is provided with a positive electrode terminal and a negative electrode terminal, which are used to connect the positive electrode tab and the negative electrode tab of the electrode assembly, respectively, during the welding process, the adapter 300 and the positive electrode terminal, and the adapter 300 and the negative electrode terminal need to be welded simultaneously.
  • the two pressure heads 20 can be respectively set corresponding to the two adapter plates 300, and the adapter plates 300 can be positioned one by one at the positive electrode terminal or the negative electrode terminal to facilitate welding of the adapter plates 300 with the positive electrode terminal or the negative electrode terminal.
  • each pressure head 20 and the corresponding welding operation inlet 11 and welding operation outlet 221 together define a welding channel, that is, two independent welding channels, which are respectively used to weld the adapter 300 and the positive electrode terminal, and the adapter 300 and the negative electrode terminal.
  • it also includes two independent dust collecting chambers, each of which is connected to at least one dust removal port 23 so that the dust collected in the dust collecting chamber can be discharged through the dust removal port 23.
  • the welding positioning device 100 further includes two movable cylinders disposed on the bottom plate 40 .
  • the two movable cylinders are installed on the bottom plate 40 along the width direction of the top cover 200 and clamp or release the main body 10 along the width direction of the top cover 200 .
  • the two movable cylinders are the first movable part 70 and the second movable part 80 mentioned above.
  • the two movable cylinders can clamp or loosen the main body 10 along the width direction of the top cover 200 so that the main body 10 can be fixed in the installation position or the main body 10 can be removed from the installation position to facilitate the replacement of the main body 10.
  • the two dust extraction pipes 50 are installed at opposite ends of the bottom plate 40 along the length direction of the top cover 200 to limit the main body 10 along the length direction of the top cover 200 .
  • the two dust extraction pipes 50 can limit the main body 10 along the length direction of the top cover 200.
  • the main body 10 can be stably limited in the installation position, so that the main body 10 can be more stably used to position the top cover 200 and the adapter plate 300 during the welding process.
  • the two dust extraction pipes 50 can be connected to the external dust extractor respectively, so as to realize the discharge of dust in two independent dust collection chambers respectively. Therefore, during the dust removal process, the dust in the two independent dust collection chambers does not affect each other. It can avoid the dust in the two dust collecting chambers from interfering with each other, thus achieving a better dust removal effect.
  • the number of dust extraction pipes 50 can also be four, of which two dust extraction pipes 50 are installed at opposite ends of the bottom plate 40 along the length direction of the top cover 200, and the other two dust extraction pipes 50 can be installed on the bottom plate 40 along the thickness direction of the top cover 200.
  • the two dust extraction pipes 50 installed along the length direction of the top cover 200 can remove dust in two independent dust collecting chambers in a direction perpendicular to the welding channel.
  • the two dust extraction pipes 50 installed along the length direction of the top cover 200 can remove dust in two independent dust collecting chambers in a direction parallel to the welding channel, thereby improving the dust removal efficiency and making the dust removal more thorough.
  • the adapter sheet 300 when welding the adapter sheet 300 and the top cover 200, the adapter sheet 300 is first pressed against the top cover 200 by the pressing head 20 to complete the positioning between the adapter sheet 300 and the top cover 200. After the positioning is completed, welding can be started. The laser beam passes through the welding channel to reach the welding surface between the adapter sheet 300 and the top cover 200 to achieve welding connection between the two.
  • each dust extraction pipe 50 is connected to an external dust extractor respectively. Under the action of the dust extractor, the dust in the dust collecting chamber is extracted through each dust removal port 23, ensuring the cleanliness of the welding environment, thereby improving the welding quality and avoiding dust contamination of the battery cell.
  • the first movable member 70 and the second movable member 80 need only be adjusted to move them away from each other, and the current main body 10 on the bottom plate 40 needs to be removed. Then, a new main body 10 is replaced, the first movable member 70 and the second movable member 80 are adjusted to move them closer to each other, and the new main body 10 is fixed to the bottom plate 40, and welding can begin.

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本申请涉及一种焊接定位装置，其中，压头(20)能够将第一部件抵压于第二部件上，焊接时产生的粉尘能够收集在集尘腔内，以便于在外部抽尘器的作用下将粉尘排出至焊接定位装置(100)外，保持焊接环境清洁，从而提高焊接质量。

Description

一种焊接定位装置
交叉引用
本申请引用于2022年09月27日递交的名称为“一种焊接定位装置”的第202222555478.3号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电池制造技术领域，特别是涉及一种焊接定位装置。
背景技术
在电池单体的制作过程中，需要将转接片焊接至顶盖上，以便于通过转接片将电极组件中的极耳引出至顶盖上的电极端子，实现电池单体中电能的输入及输出。
在转接片与顶盖的焊接过程中，所产生的粉尘不仅会影响焊接质量，还会污染电池单体，影响电池单体的性能。
发明内容
基于此，有必要针对焊接过程中产生的粉尘会影响焊接质量及污染电池单体的问题，提供一种焊接定位装置。
第一方面，本申请提供了一种焊接定位装置，用于定位待焊接的第一部件与第二部件，焊接定位装置包括：
主体，主体上贯穿开设有焊接操作入口；及
压头，包括相对设置的连接端及定位端，连接端可拆卸地装配于主体的一侧并与焊接操作入口连通，定位端将第一部件抵压于第二部件上且其上开设有与待焊接位置连通的焊接操作出口；
其中，压头中内腔的部分被构造为与焊接操作入口及焊接操作出口界定形成焊接通道，另一部分被构造为与焊接通道连通的集尘腔；
压头上贯穿开设与集尘腔连通的至少一个除尘口，除尘口用于运送在焊接时收集于集尘腔内的粉尘。
本申请实施例的技术方案中，通过压头将第一部件抵压于第二部件上，实现两者的稳定连接，焊接通道为激光焊接的激光束提供穿设路径，使得激光束能够顺利到达第一部件与第二部件的焊接位置，实现第一部件与第二部件的顺利焊接。与此同时，集尘腔与焊接通道连通，在不影响焊接过程的前提下，集尘腔能够收集焊接时产生的粉尘，并将粉尘通过除尘口运送至焊接定位装置外，实现焊接过程的除尘，确保焊接环境的清洁，提高焊接质量。
在一些实施例中，焊接定位装置包括弹性件，弹性件沿压头的抵压方向可形变地连接于主体与压头之间。
本申请实施例的技术方案中，弹性件能够使第一部件与第二部件之间的连接更加稳定，使焊接过程更加顺利。此外，压头弹性抵压于第一部件与第二部件，能够更灵活的调整压头对第一部件与第二部件的抵压力，提高定位时的稳定性。
在一些实施例中，焊接定位装置包括底板及至少一个抽尘管，底板上贯穿开设有焊接口，主体可拆卸地装配于底板的一侧，并使焊接操作入口与焊接口相对并连通，各抽尘管与各除尘口对接并连通。
本申请实施例的技术方案中，底板能够为主体提供安装基础，当主体可拆卸地装配于底板的一侧时，底板上的焊接口与主体上开设的焊接操作入口相对设置且相互连通。由此，激光焊接时的激光束能够经由焊接口顺利进入焊接通道内，以实现第一部件与第二部件的焊接。此外，抽尘管能够将各除尘口与外部的抽尘器连通，以在抽尘器的作用下将集尘腔内的粉尘顺利排出。
在一些实施例中，抽尘管包括两个，其中一个抽尘管沿与焊接通道相交的方向配接于压头的一侧并与集尘腔连通，另一个抽尘管沿与焊接通道平行的方向配接于主体上并与集尘腔连通。
本申请实施例的技术方案中，通过上述结构，能够使集尘腔内的粉尘清除的更加彻底，进一步确保焊接环境的清洁，提高焊接质量。
在一些实施例中，焊接定位装置还包括设于底板上的限位件，限位件连接于底板及主体之间，用于将主体限位于底板上。
本申请实施例的技术方案中，通过设置限位件能够实现主体在底板上的快速定位，实现主体与底板之间的快速准确连接。
在一些实施例中，限位件被构造为凸设于底板上的第一定位销，主体面向底板的表面上开设与第一定位销配合的第一凹槽。
本申请实施例的技术方案中，可实现主体在底板上的快速定位，可快速确定主体在底板上的位置，提高主体与底板之间的组装效率。
在一些实施例中，焊接定位装置还包括沿预设方向分别设置于主体两侧的第一活动件及第二活动件，第一活动件及第二活动件之间共同界定沿预设方向间距可调的安装位，用于安装主体。
本申请实施例的技术方案中，第一活动件及第二活动件能够沿预设方向对主体进行限位，使主体更加稳定的设置于底板上，提高主体与底板之间的连接稳定性。
在一些实施例中，第一活动件及第二活动件均被构造为活动气缸。
本申请实施例的技术方案中，活动气缸相互靠近时，能够沿预设方向对主体进行限位， 使主体固定于底板上，从而实现对第一部件及第二部件的定位。
在一些实施例中，第一活动件面向主体的表面凸设有第二定位销，主体面向第一活动件的表面开设有与第二定位销配合的第二凹槽；和/或第二活动件面向主体的表面凸设有第三定位销，主体面向第二活动件的表面开设有与第三定位销配合的第三凹槽。
本申请实施例的技术方案中，通过上述结构，能够进一步地提高第一活动件及第二活动件与主体之间的连接稳定性，使主体更加稳定的设置在底板上。由此，在焊接过程中，主体能够更好的将第一部件及第二部件进行准确定位，使焊接过程更加顺利。
在一些实施例中，第一部件被构造为电池单体的顶盖，第二部件被构造为电池单体中与顶盖焊接的两片转接片，压头包括两个，两个压头分别用于将两片转接片定位于顶盖上；其中，两个压头沿顶盖的长度方向装配于主体的两端。
本申请实施例的技术方案中，两个压头能够分别与两片转接片对应设置，并且一一对应的将转接片定位于正极电极端子或负极电极端子处，以便于实现转接片与正极电极端子或负极电极端子的焊接。
在一些实施例中，焊接定位装置还包括设置于底板上两个活动气缸，两个活动气缸沿顶盖的宽度方向安装于底板上，并沿顶盖的宽度方向夹紧或松开主体。
本申请实施例的技术方案中，两个活动气缸能够沿顶盖的宽度方向夹紧或松开主体，以使主体能够固定于安装位中或者将主体从安装位中取出，以便于更换主体。
在一些实施例中，抽尘管包括两个，两个抽尘管沿顶盖的长度方向安装于底板的相对两端，用于沿顶盖的长度方向限位主体。
本申请实施例的技术方案中，一方面，两个抽尘管能够沿顶盖的长度方向对主体进行限位，配合两个活动气缸共同使用时，能够将主体稳定限位于安装位中，以使主体能够更稳定的应用于焊接过程中对顶盖及转接片的定位。另一方面，两个抽尘管能够分别与外部抽尘器连通，从而分别实现两个相互独立的集尘腔内粉尘的排出。由此，在除尘过程中，两个相互独立的集尘腔内的粉尘互不影响，能够避免两个集尘腔内的粉尘相互干扰，使得除尘效果更好。
上述的焊接定位装置，压头能够实现将待焊接的第一部件抵压于第二部件上，使第一部件与第二部件能够顺利焊接；在焊接的同时，焊接产生的粉尘能够收集在集尘腔内，以便于在外部抽尘器的作用下将粉尘排出至焊接定位装置外，保持焊接环境清洁，从而提高焊接质量，此外，在焊接的同时及时清理粉尘，也能够避免粉尘污染电池单体，提高电池单体的性能。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
通过阅读对下文实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为根据一个或多个实施例的焊接定位装置的整体结构示意图；
图2为根据一个或多个实施例的焊接定位装置的剖视图；
图3为根据一个或多个实施例的主体及压头的结构示意图；
图4为根据一个或多个实施例的焊接定位装置的分解结构示意图；
图5为根据一个或多个实施例的焊接定位装置的分解结构示意图；
图6为根据一个或多个实施例的主体及压头的结构示意图；
图7为根据一个或多个实施例的焊接定位装置与顶盖及转接片连接的结构示意图。
100、焊接定位装置；200、顶盖；300、转接片；10、主体；20、压头；30、弹性件；40、底板；50、抽尘管；60、限位件；70、第一活动件；80、第二活动件；11、焊接操作入口；12、第二凹槽；13、第三凹槽；21、连接端；22、定位端；23、除尘口；24、内腔；41、焊接口；71、第二定位销；81、第三定位销；221、焊接操作出口；a、预设方向。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在 B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具以及其他领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
电池单体是组成电池的最小单元，在电池中，电池单体可以是多个，多个电池单体之间可以串联或者并联或者混联，其中，混联是指多个电池单体中既有串联又有并联。
对于电池单体的结构而言，通常包括顶盖、壳体、电极组件以及其他的功能性部件。其中，顶盖是指盖合于壳体的开口处以将电池单体的内部环境隔绝于外部环境的部件。电极组件是电池单体中发生电化学反应的部件，主要由正负极片及设于正负极片之间的隔膜组成，正负极片上具有活性物质的部分构成电极组件的主体部，不具有活性物质的部分各自构成正负极耳。
顶盖上可以设置如电极端子等功能性部件，电极组件上的正负极耳通过转接片与顶盖上的电极端子连接，以在电池单体的充放电过程中顺利形成电流回路。
为了使正负极耳与电极端子之间的连接更加稳定，通常采用激光焊接的方式将转接片固定至顶盖上，再将正负极耳与转接片连接。
申请人注意到，在转接片与顶盖的焊接过程中，伴随产生大量粉尘及颗粒，这些粉尘及颗粒若移动至转接片与顶盖的焊接面之间，会导致两者的焊接面出现爆点、针孔等焊接缺陷，影响焊接质量。此外，粉尘及颗粒还可能会进入电池单体内部，污染电池单体。
基于以上考虑，为了解决焊接过程中产生的粉尘及颗粒影响焊接质量、污染电池单体的问题，本申请一个或多个实施例中提供了一种焊接定位装置，在焊接的同时，通过除尘通 道排出焊接过程中产生的粉尘及颗粒，保持焊接环境清洁，提高焊接质量，并且能够避免粉尘及颗粒等污染物污染电池单体，提高电池单体的性能。
参阅图1、图2以及图3，本申请一实施例提供了一种焊接定位装置100，用于定位待焊接的第一部件与第二部件。焊接定位装置100包括主体10及压头20，主体10上贯穿开设有焊接操作入口11。压头20包括相对设置的连接端21及定位端22，连接端21可拆卸地装配于主体10的一侧并与焊接操作入口11连通，定位端22将第一部件抵压于第二部件上且其上开设有与待焊接位置连通的焊接操作出口221。其中，压头20中内腔24的部分被构造为与焊接操作入口11及焊接操作出口221界定形成焊接通道，另一部分被构造为与焊接通道连通的集尘腔。压头20上贯穿开设与集尘腔连通的至少一个除尘口23，除尘口23用于运送在焊接时收集于集尘腔内的粉尘。
需要说明的是，实际焊接过程中，除尘口23可与外部抽尘器连通，通过抽尘器将收集于集尘腔内的粉尘排出，确保焊接环境清洁。焊接通道是指，可供激光焊接的激光束顺利通过，以将第一部件焊接至第二部件上结构。
压头20的连接端21可拆卸地装配于主体10的一侧，并且当压头20与主体10连接时，连接端21与焊接操作入口11连通。可以理解地，可将连接端21设置为开口端，当连接端21装配于主体10的一侧时，连接端21的开口与焊接操作入口11连通。
压头20的定位端22的轮廓形状能够与第一部件的轮廓形状相匹配，以便于能够更好地将第一部件稳定抵压于第二部件上。此外，压头20的定位端22上开设有焊接操作出口221。当定位端22与第一部件接触时，定位端22上的焊接操作出口221与第一部件及第二部件的待焊接位置正对设置且相互连通。
由此，在焊接过程中，激光焊接的激光束能够通过由焊接操作入口11、压头20的部分内腔以及焊接操作出口221共同界定形成的焊接通道到达第一部件与第二部件的焊接位置，实现第一部件与第二部件的顺利焊接。
通过压头20将第一部件抵压于第二部件上，实现两者的稳定连接，焊接通道为激光焊接的激光束提供穿设路径，使得激光束能够顺利到达第一部件与第二部件的焊接位置，实现第一部件与第二部件的顺利焊接。与此同时，集尘腔与焊接通道连通，在不影响焊接过程的前提下，集尘腔能够收集焊接时产生的粉尘，并将粉尘通过除尘口23运送至焊接定位装置100外，实现焊接过程的除尘，确保焊接环境的清洁，提高焊接质量。
在一些实施例中，焊接定位装置100包括弹性件30，弹性件30沿压头20的抵压方向可形变地连接于主体10与压头20之间。
需要说明的是，当压头20将第一部件抵压于第二部件上时，由于压头20与第一部件及第二部件均为刚性结构，当压头20的抵压力太大时，会导致第一部件及第二部件的结构受到损坏。而当压头20的抵压力太小时，会导致第一部件与第二部件之间的连接不稳定，影响 焊接效果。
基于此，使弹性件30沿压头20的抵压方向可形变地连接于主体10与压头20之间，能够使第一部件与第二部件之间的连接更加稳定，使焊接过程更加顺利。此外，压头20弹性抵压于第一部件与第二部件，能够更灵活的调整压头20对第一部件与第二部件的抵压力，提高定位时的稳定性。
具体地，弹性件30可以被构造为弹簧，即在主体10与压头20之间设置能够沿压头20的抵压方向发生形变的弹簧，以使压头20能够弹性抵压于第一部件及第二部件上。可以理解地，弹性件30也可以设置为除弹簧之外的其他弹性结构，例如弹性连接于压头20与主体10之间的橡胶垫等，在此不做赘述。
在一些实施例中，焊接定位装置100包括底板40及至少一个抽尘管50，底板40上贯穿开设有焊接口41，主体10可拆卸地装配于底板40的一侧，并使焊接操作入口11与焊接口41相对并连通，各抽尘管50与各除尘口23对接并连通。
底板40能够为主体10提供安装基础，当主体10可拆卸地装配于底板40的一侧时，底板40上的焊接口41与主体10上开设的焊接操作入口11相对设置且相互连通。由此，激光焊接时的激光束能够经由焊接口41顺利进入焊接通道内，以实现第一部件与第二部件的焊接。
此外，抽尘管50能够将各除尘口23与外部的抽尘器连通，以在抽尘器的作用下将集尘腔内的粉尘顺利排出。
在一些实施例中，抽尘管50包括两个，其中一个抽尘管50沿与焊接通道相交的方向配接于压头20的一侧并与集尘腔连通，另一个抽尘管50沿与焊接通道平行的方向配接于主体10上并与集尘腔连通。
具体地，当各抽尘管50分别与外部抽尘器连接时，沿与焊接通道相交的方向配接于压头20一侧的抽尘管50能够沿与焊接通道相交的方向对集尘腔内的粉尘进行抽吸，沿与焊接通道平行的方向配接于主体10上的抽尘管50能够沿与焊接通道平行的方向对集尘腔内的粉尘进行抽吸。
通过上述结构，能够使集尘腔内的粉尘清除的更加彻底，进一步确保焊接环境的清洁，提高焊接质量。
需要说明的是，抽尘管50也可以包括为两个以上，各抽尘管50分别沿与焊接通道相交的方向及与焊接通道平行的方向设置，以便于将集尘腔内的粉尘清除的更加彻底。抽尘管50的具体数量可根据实际使用情况进行调整，在此不做赘述。
请参看图4，在一些实施例中，焊接定位装置100还包括设于底板40上的限位件60，限位件60连接于底板40及主体10之间，用于将主体10限位于底板40上。
需要说明的是，主体10可拆卸地设置于底板40上，能够使主体10与底板40之间的 连接更加灵活。具体地，焊接过程中不同的第一部件及第二部件的形状及尺寸均可能发生改变，因此需要通过更换不同的主体10以实现对不同的第一部件及第二部件进行抵压，提高焊接定位装置100的实用性。
基于上述情况，通过设置限位件60能够实现主体10在底板40上的快速定位，实现主体10与底板40之间的快速准确连接。
在一些实施例中，限位件60被构造为凸设于底板40上的第一定位销，主体10面向底板40的表面上开设与第一定位销配合的第一凹槽。
主体10与底板40进行连接时，将第一定位销插入第一凹槽内，即可实现主体10在底板40上的快速定位，可快速确定主体10在底板40上的位置，提高主体10与底板40之间的组装效率。
如图5所示，在一些实施例中，焊接定位装置100还包括沿预设方向a分别设置于主体10两侧的第一活动件70及第二活动件80。其中，第一活动件70及第二活动件80之间共同界定沿预设方向a间距可调的安装位，用于安装主体10。
具体地，预设方向a垂直于焊接通道的贯穿方向。第一活动件70及第二活动件80沿预设方向a分别设置于主体10的相对两侧，当第一活动件70及第二活动件80相互靠近时，安装位在预设方向a上的间距变小，能够通过第一活动件70及第二活动件80将主体10固定于安装位上。当第一活动件70及第二活动件80相互远离时，安装位在预设方向a上的间距变大，能够将主体10从安装位中取出，以便于更换主体10。
在一些实施例中，第一活动件70及第二活动件80均被构造为活动气缸。
具体地，沿预设方向a分别位于主体10相对两侧的两个活动气缸相互靠近时，能够沿预设方向a对安装位中的主体10进行限位，使主体10稳定设置于安装位。
需要说明的是，第一活动件70及第二活动件80也可以设置为其他结构，例如可以设置为沿预设方向a分别位于主体10相对两侧的伸缩杆，两侧的伸缩杆能够沿靠近主体10的方向伸长，以便于将主体10固定于安装位。
请一并参看图3、图4、图5以及图6，在一些实施例中，第一活动件70面向主体10的表面凸设有第二定位销71，主体10面向第一活动件70的表面开设有与第二定位销71配合的第二凹槽12。和/或第二活动件80面向主体10的表面凸设有第三定位销81，主体10面向第二活动件80的表面开设有与第三定位销81配合的第三凹槽13。
当第一活动件70抵接于主体10上时，第一活动件70上的第二定位销71插入主体10上的第二凹槽12内，使主体10与第一活动件70之间的连接更加稳定，避免两者发生相对位移。当第二活动件80抵接于主体10上时，第二活动件80上的第三定位销81插入主体10上的第三凹槽13内，使主体10与第二活动件80之间的连接更加稳定，避免两者发生相对位移。
通过上述结构，能够进一步地提高第一活动件70及第二活动件80与主体10之间的连接稳定性，使主体10更加稳定的设置在底板40上。由此，在焊接过程中，主体10能够更好的将第一部件及第二部件进行准确定位，使焊接过程更加顺利。
请一并参看图1及图7，在一些实施例中，第一部件被构造为电池单体的顶盖200，第二部件被构造为电池单体中与顶盖200焊接的两片转接片300，压头20包括两个，两个压头20分别用于将两片转接片300定位于顶盖200上。其中，两个压头20沿顶盖200的长度方向装配于主体10的两端。
需要说明的是，当焊接定位装置100应用于电池单体的转接片300与顶盖200的焊接时，由于顶盖200上分别设置有正极电极端子和负极电极端子，分别用于连接电极组件的正极极耳与负极极耳。因此，在焊接过程中，需要对转接片300与正极电极端子、转接片300与负极电极端子同时进行焊接。
基于此，两个压头20能够分别与两片转接片300对应设置，并且一一对应的将转接片300定位于正极电极端子或负极电极端子处，以便于实现转接片300与正极电极端子或负极电极端子的焊接。
进一步地，当压头20设置为两个时，主体10上贯穿开设的焊接操作入口11也设置为两个，并与两个压头20的连接端21一一对应连通。其中，每一个压头20中内腔的部分与对应的焊接操作入口11及焊接操作出口221共同界定形成一焊接通道，即包括两个相互独立的焊接通道，分别用于对转接片300和正极电极端子、转接片300和负极电极端子进行焊接。
同时，也包括两个相互独立的集尘腔，每一个集尘腔与至少一个除尘口23连通，以便于将收集于集尘腔内的粉尘通过除尘口23排出。
在一些实施例中，焊接定位装置100还包括设置于底板40上两个活动气缸，两个活动气缸沿顶盖200的宽度方向安装于底板40上，并沿顶盖200的宽度方向夹紧或松开主体10。
具体地，两个活动气缸即为上述的第一活动件70及第二活动件80，两个活动气缸能够沿顶盖200的宽度方向夹紧或松开主体10，以使主体10能够固定于安装位中或者将主体10从安装位中取出，以便于更换主体10。
在一些实施例中，抽尘管50包括两个，两个抽尘管50沿顶盖200的长度方向安装于底板40的相对两端，用于沿顶盖200的长度方向限位主体10。
一方面，两个抽尘管50能够沿顶盖200的长度方向对主体10进行限位，配合两个活动气缸共同使用时，能够将主体10稳定限位于安装位中，以使主体10能够更稳定的应用于焊接过程中对顶盖200及转接片300的定位。
另一方面，两个抽尘管50能够分别与外部抽尘器连通，从而分别实现两个相互独立的集尘腔内粉尘的排出。由此，在除尘过程中，两个相互独立的集尘腔内的粉尘互不影响， 能够避免两个集尘腔内的粉尘相互干扰，使得除尘效果更好。
此外，抽尘管50也可以设置为四个，其中两个抽尘管50沿顶盖200的长度方向安装于底板40的相对两端，另外两个抽尘管50可以沿顶盖200的厚度方向安装在底板40上。由此，沿顶盖200的长度方向安装的两个抽尘管50能够沿垂直于焊接通道的方向分别对两个相互独立的集尘腔内的粉尘进行清除。而沿顶盖200的长度方向安装的两个抽尘管50能够沿平行于焊接通道的方向分别对两个相互独立的集尘腔内的粉尘进行清除，提高除尘效率，并且除尘更加彻底。
根据本申请的一些实施例，在对转接片300及顶盖200进行焊接时，首先通过压头20将转接片300压紧于顶盖200上，完成转接片300与顶盖200之间的定位。定位完成后，可开始进行焊接。激光束经过焊接通道到达转接片300与顶盖200之间的焊接面，以实现两者的焊接相连。
与此同时，各抽尘管50分别与外部抽尘器连通，在抽尘器的作用下，集尘腔内的粉尘经过各除尘口23被抽出，确保焊接环境的清洁，从而提高焊接质量，并且能够避免粉尘污染电池单体。
此外，当需要对不同顶盖200进行焊接时，只需调整第一活动件70及第二活动件80，使两者相互远离，并将底板40上的当前主体10取下。然后换上新的主体10，调整第一活动件70及第二活动件80使之相互靠近，将新的主体10固定至底板40上，即可开始焊接。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (12)

  1. 一种焊接定位装置，用于定位待焊接的第一部件与第二部件，所述焊接定位装置包括：
    主体，所述主体上贯穿开设有焊接操作入口；及
    压头，包括相对设置的连接端及定位端，所述连接端可拆卸地装配于所述主体的一侧并与所述焊接操作入口连通，所述定位端将所述第一部件抵压于所述第二部件上且其上开设有与待焊接位置连通的焊接操作出口；
    其中，所述压头中内腔的部分被构造为与所述焊接操作入口及所述焊接操作出口界定形成焊接通道，另一部分被构造为与所述焊接通道连通的集尘腔；
    所述压头上贯穿开设与所述集尘腔连通的至少一个除尘口，所述除尘口用于运送在焊接时收集于所述集尘腔内的粉尘。
  2. 根据权利要求1所述的焊接定位装置，其中，所述焊接定位装置包括弹性件，所述弹性件沿所述压头的抵压方向可形变地连接于所述主体与所述压头之间。
  3. 根据权利要求1或2所述的焊接定位装置，其中，所述焊接定位装置包括底板及至少一个抽尘管，所述底板上贯穿开设有焊接口，所述主体可拆卸地装配于所述底板的一侧，并使所述焊接操作入口与所述焊接口相对并连通，各所述抽尘管与各所述除尘口对接并连通。
  4. 根据权利要求3所述的焊接定位装置，其中，所述抽尘管包括两个，其中一个所述抽尘管沿与所述焊接通道相交的方向配接于所述压头的一侧并与所述集尘腔连通，另一个所述抽尘管沿与所述焊接通道平行的方向配接于所述主体上并与所述集尘腔连通。
  5. 根据权利要求3或4所述的焊接定位装置，其中，所述焊接定位装置还包括设于所述底板上的限位件，所述限位件连接于所述底板及所述主体之间，用于将所述主体限位于所述底板上。
  6. 根据权利要求5所述的焊接定位装置，其中，所述限位件被构造为凸设于所述底板上的第一定位销，所述主体面向所述底板的表面上开设与所述第一定位销配合的第一凹槽。
  7. 根据权利要求1-6任意一项所述的焊接定位装置，其中，所述焊接定位装置还包括沿预设方向分别设置于所述主体两侧的第一活动件及第二活动件，所述第一活动件及所述第二活动件之间共同界定沿所述预设方向间距可调的安装位，用于安装所述主体。
  8. 根据权利要求7所述的焊接定位装置，其中，所述第一活动件及所述第二活动件均被构造为活动气缸。
  9. 根据权利要求7或8所述的焊接定位装置，其中，所述第一活动件面向所述主体的表面凸设有第二定位销，所述主体面向所述第一活动件的表面开设有与所述第二定位销配合的第二凹槽；
    和/或所述第二活动件面向所述主体的表面凸设有第三定位销，所述主体面向所述第二活 动件的表面开设有与所述第三定位销配合的第三凹槽。
  10. 根据权利要求3-9任意一项所述的焊接定位装置，其中，所述第一部件被构造为电池单体的顶盖，所述第二部件被构造为电池单体中与所述顶盖焊接的两片转接片，所述压头包括两个，两个所述压头分别用于将两片所述转接片定位于所述顶盖上；
    其中，两个所述压头沿所述顶盖的长度方向装配于所述主体的两端。
  11. 根据权利要求10所述的焊接定位装置，其中，所述焊接定位装置还包括设置于所述底板上两个活动气缸，两个所述活动气缸沿所述顶盖的宽度方向安装于所述底板上，并沿所述顶盖的宽度方向夹紧或松开所述主体。
  12. 根据权利要求10或11所述的焊接定位装置，其中，所述抽尘管包括两个，两个所述抽尘管沿所述顶盖的长度方向安装于所述底板的相对两端，用于沿所述顶盖的长度方向限位所述主体。
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CN109954971A (zh) * 2018-12-25 2019-07-02 大族激光科技产业集团股份有限公司 一种激光焊接辅助装置
CN111037093A (zh) * 2019-12-24 2020-04-21 无锡先导智能装备股份有限公司 焊接装置
CN211588905U (zh) * 2019-12-24 2020-09-29 无锡先导智能装备股份有限公司 焊接装置
CN112975176A (zh) * 2021-03-05 2021-06-18 浙江南都电源动力股份有限公司 一种新型激光焊接平面压头
CN113130964A (zh) * 2021-03-05 2021-07-16 浙江南都电源动力股份有限公司 一种蝴蝶焊设备
CN214558262U (zh) * 2021-03-05 2021-11-02 浙江南都电源动力股份有限公司 一种新型连接片激光焊接双压头
CN215432118U (zh) * 2021-03-05 2022-01-07 浙江南都电源动力股份有限公司 一种新型电池连接片激光焊接压头
CN215145891U (zh) * 2021-06-30 2021-12-14 广东利元亨智能装备股份有限公司 一种激光焊接压头及激光焊接机
CN218136063U (zh) * 2022-09-27 2022-12-27 宁德时代新能源科技股份有限公司 一种焊接定位装置

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