CN214322172U

CN214322172U - Battery cell tab welding auxiliary device and welding system

Info

Publication number: CN214322172U
Application number: CN202023043655.7U
Authority: CN
Inventors: 冉昌林; 蔡汉钢; 刘俊
Original assignee: Wuhan Yifi Laser Intelligent Equipment Co ltd
Current assignee: Wuhan Yifi Laser Intelligent Equipment Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-10-01
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to a battery production technical field discloses an electricity core utmost point ear welding auxiliary device and welding system, and wherein welding auxiliary device includes hold-down mechanism, and hold-down mechanism is including compressing tightly the support and upper and lower portable connection in the sunshade that compresses tightly the support, and the sunshade is used for covering in electric core top when the welding, is equipped with the opening that is used for corresponding with the utmost point ear position of electric core on the sunshade, and the opening part is connected with the pressure head, and the pressure head is link up the structure and corresponds with the weld part phase. The utility model provides an auxiliary welding device and a welding system for battery core tabs, which are provided with a pressing mechanism to limit and press a welding part by using a pressure head, thereby being beneficial to the accurate positioning and smooth proceeding of welding; set up the sunshade above electric core, the sunshade can shelter from the protection to other positions of electric core except that the welding position, can prevent that impurities such as the metal fillings that welding process produced from falling on electric core, is favorable to guaranteeing the normal processing of electric core, avoids damaging electric core and influences electric core quality.

Description

Battery cell tab welding auxiliary device and welding system

Technical Field

The utility model relates to a battery production technical field especially relates to an electricity core utmost point ear welding auxiliary device and welding system.

Background

In today where energy competition is becoming more intense, it has become a common consensus to find products that replace petroleum energy. The rapid development of the battery industry is a trend, which has a wide application in industrial production, life and other aspects, and city electric buses are quietly started. The battery core is an important component unit of the battery, and in the manufacturing and assembling process of the battery, the tab of the battery core is mechanically connected with the cover plate in a welding mode so as to realize the function of current conduction. The welding process of the battery cover plate and the battery core lug is quite important. Whether the battery cover plate and the battery core tab are welded firmly and reliably can directly influence the service life of the battery.

The existing battery cell tab welding process has the problems that metal chips can be generated in the welding process, the metal chips easily influence the normal processing of a battery cell, and even damage the surface of the battery cell and influence the quality of the battery cell.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electricity core utmost point ear welding auxiliary device and welding system for there is the welding process in can producing the metal fillings to solve current electricity core utmost point ear welding process, and these metal fillings influence the normal processing of electric core easily, damage the surface of electric core even, influence the problem of electric core quality.

The utility model provides an electricity core utmost point ear welding auxiliary device, including hold-down mechanism, hold-down mechanism including compress tightly the support and upper and lower portable connect in compress tightly the sunshade of support, the sunshade is used for covering in electric core top when the welding, be equipped with the opening that is used for corresponding with the utmost point ear position of electric core on the sunshade, the opening part is connected with the pressure head, the pressure head is link up the structure and corresponds with the weld part phase.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device, the sunshade is in the opening part still is connected with first dust excluding hood, first dust excluding hood is in first dust remover through first dust removal tube coupling.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device, first dust excluding hood is the annular edge the opening sets up.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device, first dust excluding hood is hollow structure, the inner wall of first dust excluding hood is equipped with first dust absorption mouth.

According to the utility model provides a pair of electric core utmost point ear welding auxiliary device, it holds in the palm the groove to compress tightly to be connected with first dust removal on the support, first dust removal pipeline is placed in the first dust removal holds in the palm the groove.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device still includes clean mechanism, clean mechanism including clean support and upper and lower portable connect in the mount of clean support, be connected with the guide arm on the mount, sliding connection has the subassembly of cleaning on the guide arm, it is connected with drive assembly to clean the subassembly, drive assembly is used for the drive clean the subassembly along guide arm reciprocating motion in order to clean electric core.

According to the utility model provides an electric core utmost point ear welding auxiliary device, clean the subassembly and include the second dust excluding hood, the second dust excluding hood has the second dust absorption mouth, the second dust excluding hood passes through the second dust removal pipe coupling in the second dust remover; and a second dust removing bracket matched with the second dust removing pipeline is connected to the cleaning support.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device, clean the subassembly and still include the brush.

According to the utility model provides a pair of electricity core utmost point ear welding auxiliary device, drive assembly including connect in the oscillating structure of mount, the one end fixed connection of oscillating structure and connecting piece, the other end of connecting piece with clean the subassembly and rotate and connect.

The utility model also provides an electricity core utmost point ear welding system, including above-mentioned electricity core utmost point ear welding auxiliary device, still include conveying mechanism, follow conveying mechanism is equipped with welding station and clean station in proper order, the welding station is equipped with hold-down mechanism, clean station is equipped with clean mechanism.

The utility model provides an auxiliary welding device and a welding system for battery core tabs, which are provided with a pressing mechanism to limit and press a welding part by using a pressure head, thereby being beneficial to the accurate positioning and smooth proceeding of welding; set up the sunshade above electric core, the sunshade can shelter from the protection to other positions of electric core except that the welding position, can prevent that impurities such as the metal fillings that welding process produced from falling on electric core, is favorable to guaranteeing the normal processing of electric core, avoids damaging electric core and influences electric core quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is one of schematic structural diagrams of a pressing mechanism provided by the present invention;

fig. 2 is a second schematic structural view of the pressing mechanism provided by the present invention;

FIG. 3 is a schematic view of a first dust excluding hood provided by the present invention;

FIG. 4 is a schematic structural view of a cleaning mechanism provided by the present invention;

fig. 5 is a second schematic structural diagram of a cleaning mechanism according to the present invention.

Reference numerals:

101. pressing the support; 102. a shutter; 103. a rib plate; 104. fixing the bottom plate; 105 and 209, a driving cylinder; 106 and 210, a stop assembly; 107. a first dust hood; 1071. a first dust suction port; 108. a pressure head; 109. a first dust removal bracket; 201. cleaning the support; 202. a fixed mount; 203. a guide bar; 204. a second dust hood; 205. a second dust removal bracket; 206. a swing structure; 207. a connecting member; 208. and a brush.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following describes the cell tab welding auxiliary device and the welding system of the present invention with reference to fig. 1 to 5.

The embodiment provides a battery core tab welding auxiliary device, and the welding auxiliary device comprises a pressing mechanism. Referring to fig. 1, the pressing mechanism includes a pressing support 101 and a cover plate 102 movably connected to the pressing support 101 up and down, the cover plate 102 is used for covering the upper side of the battery core during welding, an opening corresponding to a tab of the battery core is formed in the cover plate 102, a pressing head 108 is connected to the opening, and the pressing head 108 is in a through structure and corresponds to a welding portion.

The pressing mechanism is used for pressing and arranging the battery core above the battery core when the battery core lug is welded with the cover plate. The pressure head 108 is correspondingly pressed on the tab position of the battery cell, i.e. the welding position. The ram 108 is a structure that penetrates up and down, that is, the ram 108 presses around the welding position in a ring shape, so that the welding position is exposed, and the welding head can reach the welding position from the inside of the ram 108 for welding. The shielding plate 102 covers the battery core, so that the surface of the battery core is only exposed at the corresponding position of the pressure head 108, namely the welding position, and other positions except the welding position of the battery core can be protected, thereby avoiding impurities such as metal chips generated in the welding process from falling on the battery core.

According to the auxiliary device for welding the battery cell tab, the pressing mechanism is arranged to limit and press the welding position by using the pressure head 108, so that accurate positioning and smooth welding can be facilitated; set up sunshade 102 above electric core, sunshade 102 can shelter from the protection to other positions of electric core except that the welding position, can prevent that impurities such as the metal fillings that welding process produced from falling on electric core, is favorable to guaranteeing the normal processing of electric core, avoids damaging electric core and influences electric core quality.

Further, referring to fig. 2, the ram 108 is a hollow structure penetrating up and down; and the ram 108 gradually decreases in cross-sectional area from top to bottom. I.e., the ram 108 tapers from top to bottom. The welding is convenient to carry out.

On the basis of the above embodiment, further referring to fig. 1 and fig. 2, the first dust hood 107 is further connected to the opening of the shutter 102, and the first dust hood 107 is connected to the first dust remover through the first dust removing pipeline. By the arrangement of the pressing head 108, impurities generated during the welding process are mainly concentrated at the pressing head 108, i.e., at the opening of the shutter 102. Set up first dust excluding hood 107 and connect first dust remover, can in time remove dust in order better realization impurity treatment in welding process, further improve the cleanliness of electric core.

On the basis of the above embodiment, further, the first dust removing cover 107 is arranged in a ring shape along the opening. The first dust hood 107 can play a role in protecting the periphery of the opening, so that the impurities are prevented from flying, and the impurities can be better absorbed.

In addition to the above embodiments, referring to fig. 3, the first dust excluding hood 107 is a hollow structure, and the inner wall of the first dust excluding hood 107 is provided with a first dust suction port 1071. I.e. the first dust excluding hood 107 has a closed cavity therein. The closed cavity is communicated with the interior of the pressure head 108 through a first dust suction port 1071, and the closed cavity is communicated with a first dust remover through a first dust removing pipeline. Preferably, the inner wall of the first dust excluding hood 107 is provided with a plurality of first dust suction ports 1071 in a circumferential direction. Is beneficial to dust absorption around the welding part and improves the dust removal efficiency. Preferably, the first dust suction port 1071 is provided below the inner wall of the first dust excluding hood 107; namely, the dust remover is arranged close to the welding part, thereby being beneficial to better dust removal. Furthermore, a gradually expanding section from top to bottom is arranged at the lower part in the first dust hood 107; that is, the cross-sectional size of the end of the first dust removing cover 107 where the inner divergent section is connected with the shroud is larger. The first dust suction port 1071 may be provided at the divergent section. The impurity that the welding process produced of being favorable to better injecing is absorbed.

On the basis of the above embodiment, further, the compacting base 101 is connected with a first dust removing bracket 109, and the first dust removing pipeline is placed in the first dust removing bracket 109. The first dust removing bracket 109 is in an arc groove-shaped structure and can be used for fixedly placing a first dust removing pipeline. Further, the first dust removing bracket 109 is attached to the pressing bracket 101 through a support post. The supporting column is connected to the pressing support 101 in an adjustable manner.

Further, referring to fig. 1, the cover 102 is connected to the fixed base 104, and the fixed base 104 is connected to the pressing holder 101. Because the cover 102 is cantilevered, the fixed base 104 facilitates a secure attachment of the cover 102 to the compression bracket 101. The cover plate 102 may also be provided with ribs 103, and a plurality of ribs 103 may be provided to improve structural stability and robustness.

The shutter 102 is connected to the pressing base 101 to be adjustable in position in the vertical direction. Specifically, a guide rail can be arranged between the fixed bottom plate 104 and the pressing support 101 along the vertical direction, the guide rail is fixed on the pressing support 101, and the fixed bottom plate 104 is connected with the guide rail in a sliding manner; so as to realize the up-and-down position adjustment of the shielding plate 102 and the fixed bottom plate 104. A driving cylinder 105 which extends and retracts in the vertical direction is fixed to the pressing support 101. The shutter 102 is connected to a driving cylinder 105 for moving up and down under the driving control of the driving cylinder 105.

Further, a limiting component 106 is disposed on the pressing support 101 in the vertical moving path of the shutter 102, and is used for positioning the moving stroke of the shutter 102 to ensure that the shutter 102 moves in place. The stop assembly 106 may be used to control the pressing position of the shutter 102 and the ram 108 to control the degree of compression that the ram 108 applies to the workpiece to ensure that the ram 108 applies the proper degree of compression to the workpiece. The position of the limiting assembly can be set according to actual needs, so that when the shielding plate 102 moves to the limiting assembly along the vertical direction, the pressing degree of the pressing head 108 on the workpiece is moderate. So that the pressing head 108 can be ensured to be pressed in place through the limiting component 106; the problem that when the pressure head is not pressed well, light leakage can be caused when the laser is used for removing the pressure head, and a non-welding part is melted down to cause an explosion point is solved, and meanwhile, the pressure head can be prevented from being pressed to an excessive degree to damage a workpiece; and the welding effect is ensured.

Further, a pressure sensor may also be provided between the ram 108 and the workpiece or between the workpiece and the fixture mount. The degree of pressing of the pressing head 108 on the workpiece is controlled by detecting the pressure through the pressure sensor, that is, the moving positions of the pressing head 108 and the shielding plate 102 are controlled, so that the pressing is ensured to be in place, and the welding effect is ensured. The position-limiting component 106 may be a fixed position-limiting form such as a stopper, an elastic position-limiting form such as a buffer, or a combination of the two, and is not limited specifically.

On the basis of the above embodiment, further referring to fig. 4, the cell tab welding auxiliary device further includes a cleaning mechanism. The cleaning mechanism is arranged behind the pressing mechanism along the welding process. The cleaning mechanism is used for cleaning the battery cell after the battery cell tab is welded; so as to ensure the cleanliness of the battery cell. Referring to fig. 4, the cleaning mechanism includes a cleaning support 201 and a fixing frame 202 movably connected to the cleaning support 201 up and down, a guide rod 203 is connected to the fixing frame 202, a cleaning assembly is slidably connected to the guide rod 203, and a driving assembly is connected to the cleaning assembly and is used for driving the cleaning assembly to reciprocate along the guide rod 203 to clean the battery cell.

After the battery cell tab is welded, the battery cell tab is moved to the lower part of the fixing frame 202, and the welding part is vertically corresponding to the cleaning assembly. And then the fixing frame 202 is moved downwards to a proper position, namely a position convenient for cleaning the battery cell. Then, the driving assembly is used for driving the cleaning assembly to reciprocate along the guide rod 203, so that the battery cell is cleaned. Further remove the impurity on the electric core surface, guarantee electric core quality.

On the basis of the above embodiment, further, the cleaning assembly includes a second dust hood 204, the second dust hood 204 has a second dust suction port, and the second dust hood 204 is connected to the second dust collector through a second dust removal pipeline; a second dust-removing bracket 205 matched with the second dust-removing pipeline is connected to the cleaning support 201. The electric core can be cleaned through the second dust remover. The second dust removing cover 204 is a hollow structure with a closed cavity. The closed cavity is communicated with the outside through a second dust suction port and communicated with a second dust remover through a second dust removing pipeline. The second dust absorption mouth can set up towards electric core. The second dust removing bracket 205 is in an arc-shaped groove-shaped structure and can be used for fixedly placing a second dust removing pipeline. Further, a second dust removing bracket 205 is attached to the cleaning support 201 by a support post. The supporting column is connected to the cleaning support 201 in an up-down position adjustable manner.

On the basis of the above embodiment, further referring to fig. 5, the sweeping assembly further comprises a brush 208. The brush 208 may be used to clean the surface of the cell while the second precipitator is used to remove impurities. The cleaning efficiency is higher. Further, the brush 208 can be directly connected to the second dust hood 204; a fixing block may be additionally disposed to fix the brush 208, which is not limited specifically. The brush 208 may preferably be a bowl-shaped brush 208.

On the basis of the above embodiment, further referring to fig. 4, the driving assembly includes a swing structure 206 connected to the fixed frame 202, the swing structure 206 is fixedly connected to one end of the connecting member 207, and the other end of the connecting member 207 is rotatably connected to the cleaning assembly. The movement of the sweeping assembly along the guide rods 203 is achieved by the rotation of the oscillating structure 206. The swing structure 206 may be a swing cylinder or the like capable of providing a rotational movement, and is not limited in particular. Compared with a linear driving assembly for driving the sweeping assembly to move along the guide rod 203, the swinging structure 206 can be fixed on the fixed frame 202, so that the transverse installation space of the cleaning mechanism can be reduced.

Further, referring to fig. 5, the holder 202 is slidably coupled to the cleaning support 201 up and down. A guide rail may be provided on the cleaning support 201 in a vertical direction, and the fixing frame 202 is slidably coupled to the guide rail. A driving cylinder 209 is connected to the fixed frame 202, and is driven by the driving cylinder 209 to move up and down. The cleaning support 201 is provided with a limiting component 210 on the moving path of the fixing frame 202, and is used for positioning the up-and-down moving stroke of the fixing frame 202 and ensuring that the fixing frame 202 moves in place. The position-limiting component 210 may be a fixed position-limiting form such as a stopper, or an elastic position-limiting form such as a buffer, and is not limited specifically.

Further, a plurality of guide rods 203 can be arranged on the fixing frame 202 side by side, and the cleaning assembly can be connected along the plurality of guide rods 203 in a sliding manner. The moving stability of the cleaning assembly is improved. The fixing frame 202 can be respectively provided with a limiting component at two ends of the guide rod 203; the device is used for limiting and fixing the stroke of the cleaning assembly. The limiting component can be in a fixed limiting form such as a stop block and the like, can also be in an elastic limiting form such as a buffer and the like, and is not limited specifically.

On the basis of the foregoing embodiment, further, this embodiment provides an electric core tab welding system, and this welding system includes any of the above-mentioned embodiments electric core tab welding auxiliary device, still includes conveying mechanism, is equipped with welding station and clean station along conveying mechanism in proper order, and the welding station is equipped with hold-down mechanism, and clean station is equipped with clean mechanism. The conveying mechanism can be provided with a clamp for placing and fixing the battery cell and the cover plate. When the conveying mechanism drives the clamp to move to the welding station, the pressing mechanism is started to be pressed on the battery cell to carry out the welding process. After welding, conveying mechanism drives anchor clamps and moves to clean station, starts clean mechanism and cleans electric core. And the welding process is completed through the welding station and the cleaning station, so that the cleanliness of the battery cell is ensured.

The battery cell tab welding system further comprises a welding mechanism arranged at the welding station, and the welding mechanism is used for welding the battery cell tabs when the pressing mechanism is pressed on the battery cell. The welding structure specifically comprises a welding head and a visual detection structure arranged on the welding head. The visual inspection structure includes a visual camera and a matching light source. The visual detection structure is used for identifying and positioning the welding position by using the image so as to ensure that the welding head performs welding at the welding position; the method is also used for analyzing and detecting the welding seam formed by welding by using the image to ensure the welding quality. Further, the conveying mechanism can be a linear conveying line body structure, a disc type structure and the like, so that the purpose that conveying of workpieces is facilitated for automatic production can be achieved, and the conveying mechanism is not limited specifically.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an electricity core utmost point ear welding auxiliary device, its characterized in that, includes hold-down mechanism, hold-down mechanism including compress tightly the support and upper and lower portable connect in compress tightly the sunshade of support, the sunshade is used for covering in electric core top when the welding, be equipped with the opening that is used for corresponding with the utmost point ear position of electric core on the sunshade, the opening part is connected with the pressure head, the pressure head is link up the structure and corresponds with the weld part phase.

2. The battery core tab welding auxiliary device of claim 1, wherein the shielding plate is further connected with a first dust hood at the opening, and the first dust hood is connected to a first dust remover through a first dust removal pipeline.

3. The battery tab welding auxiliary device of claim 2, wherein the first dust excluding hood is annular and is arranged along the opening.

4. The battery core tab welding auxiliary device according to claim 3, wherein the first dust hood is a hollow structure, and a first dust suction port is formed in an inner wall of the first dust hood.

5. The battery tab welding auxiliary device of claim 2, wherein a first dust removal bracket is connected to the pressing support, and the first dust removal pipeline is placed in the first dust removal bracket.

6. The battery cell tab welding auxiliary device according to any one of claims 1 to 5, further comprising a cleaning mechanism, wherein the cleaning mechanism includes a cleaning support and a fixing frame movably connected to the cleaning support up and down, the fixing frame is connected with a guide rod, the guide rod is slidably connected with a cleaning assembly, the cleaning assembly is connected with a driving assembly, and the driving assembly is used for driving the cleaning assembly to reciprocate along the guide rod to clean the battery cell.

7. The battery core tab welding auxiliary device according to claim 6, wherein the cleaning assembly comprises a second dust hood, the second dust hood is provided with a second dust suction port, and the second dust hood is connected to a second dust remover through a second dust removal pipeline; and a second dust removing bracket matched with the second dust removing pipeline is connected to the cleaning support.

8. The cell tab welding assist device of claim 6, wherein the sweeping assembly further comprises a brush.

9. The battery core tab welding auxiliary device of claim 6, wherein the driving assembly comprises a swing structure connected to the fixed frame, the swing structure is fixedly connected with one end of a connecting piece, and the other end of the connecting piece is rotatably connected with the cleaning assembly.

10. An electric core tab welding system, characterized in that, includes the electric core tab welding auxiliary device of any of the above claims 1-9, further includes a conveying mechanism, along the conveying mechanism is provided with a welding station and a cleaning station in sequence, the welding station is provided with a pressing mechanism, and the cleaning station is provided with a cleaning mechanism.