Dust removal mechanism for battery welding and dust removal device for battery welding

Abstract

The dust removal mechanism comprises a first machine frame, a working platform and a plurality of dust removal assemblies, the working platform is installed on the first machine frame, a first through hole is formed in the working platform, and each dust removal assembly comprises an exhaust pipe and a laser emitting part. The laser emitting part comprises a base, a cylinder installed on the base and a conical cylinder arranged in the cylinder, the base is installed on the working platform, a second through hole is formed in the base, a conical hole of the conical cylinder right faces the second through hole, a first gap is formed between the outer wall of the conical cylinder and the second through hole, and the upper end of the conical cylinder is in sealed connection with the upper end of the cylinder; a second gap is formed between the outer wall of the conical barrel and the inner wall of the cylinder, the outer wall of the cylinder is connected with a protective gas conveying pipe and an exhaust pipe, the protective gas conveying pipe and the exhaust pipe are both communicated with the second gap, and a notch right opposite to an exhaust opening of the exhaust pipe is formed in the side wall of the conical barrel. The anti-oxidation dust removal device can carry out anti-oxidation and dust removal treatment on battery welding so as to improve the battery welding quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to power battery production technical field especially relates to a dust removal mechanism for battery welding and contain dust removal device of battery welding of the dust removal mechanism for battery welding. BACKGROUND

[0002] Laser welding is an important process in the battery production process, and the quality of welding will affect the quality and stability of the battery. When the laser welding device welds the battery, welding slag will be generated, which will affect the welding quality. Dust removal and anti-oxidation operation on the surface of the battery are required during the welding process. In the prior art, the dust removal effect of the commonly used dust cover is not good, which affects the welding quality. SUMMARY

[0003] The purpose of the embodiment of the utility model lies in: provide a dust removal mechanism for battery welding and a battery welding dust removal device, which can prevent oxidation and remove dust during battery welding to improve the quality of battery welding.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] On the one hand, a dust removal mechanism for battery welding is provided, which comprises a first rack, a workbench and a plurality of dust removal assemblies, the workbench is installed on the first rack, the workbench is provided with a first through hole along the Z direction, each dust removal assembly comprises an air extraction pipe and a laser shooting part, the laser shooting part comprises a base, a cylinder installed on the base and a conical cylinder arranged in the cylinder, the base is installed on the workbench, and the base is provided with a second through hole facing the first through hole, the conical hole of the conical cylinder faces the second through hole, and the outer wall of the conical cylinder and the second through hole have a first gap, the upper end of the conical cylinder is sealingly connected with the upper end of the cylinder, the outer wall of the conical cylinder and the inner wall of the cylinder have a second gap, the outer wall of the cylinder is connected with a protective gas delivery pipe and the air extraction pipe, the protective gas delivery pipe and the air extraction pipe are in communication with the second gap, and the side wall of the conical cylinder is provided with a notch facing the air extraction port of the air extraction pipe.

[0006] As a further scheme of the dust removal mechanism for battery welding, the protective gas delivery pipe and the air extraction pipe are located on both sides of the cylinder along the radial direction of the cylinder.

[0007] As a further scheme of the dust removal mechanism for battery welding, one end of the protective gas delivery pipe is connected with the cylinder, and the other end extends upwardly and obliquely; one end of the air extraction pipe is connected with the cylinder, and the other end extends upwardly and obliquely.

[0008] As a further scheme of the dust removal mechanism for battery welding, the bottom of the conical cylinder passes through the second through hole and extends into the first through hole; the inner wall of the second through hole is provided with an extension part towards the center of the second through hole, the extension part is spaced from the outer wall of the conical cylinder, and the extension part is adjacent to the outlet end of the protective gas delivery pipe.

[0009] As a further scheme of the dust removal mechanism for battery welding, the dust removal assembly further comprises a fastening bolt, an adjusting long hole is formed in the base, a connecting hole is formed in the working platform corresponding to the adjusting long hole, and the fastening bolt is screwed into the connecting hole through the adjusting long hole, so that the base and the working platform are fixedly connected.

[0010] As a further scheme of the dust removal mechanism for battery welding, the dust removal assembly further comprises a dust observation tube, and the dust observation tube is connected with the dust observation port adjacent to the cylinder.

[0011] As a further scheme of the dust removal mechanism for battery welding, it further comprises a driving part and a first guide assembly for guiding in the Z direction, the first rack comprises two mounting racks spaced apart in the X direction, the driving part is mounted on at least one of the mounting racks and connected with the working platform, the working platform is located above the mounting rack and connected with the mounting rack through the first guide assembly, the driving part can drive the working platform to move in the Z direction, and the X direction is perpendicular to the Z direction.

[0012] As a further scheme of the dust removal mechanism for battery welding, it further comprises two elastic support parts, and each elastic support part is connected with the working platform and the mounting rack at both ends in the Z direction.

[0013] As a further scheme of the dust removal mechanism for battery welding, it further comprises a limiting sensing part and two first photoelectric sensors, the two first photoelectric sensors are installed at the edge position of the mounting rack in the Y direction in the Z direction, the limiting sensing part is connected with the working platform and extends between the two first photoelectric sensors, and the X direction, the Y direction and the Z direction are perpendicular to each other.

[0014] As a further scheme of the dust removal mechanism for battery welding, it further comprises two second photoelectric sensors, and the two second photoelectric sensors are respectively installed on opposite sides of the mounting rack, when the position to be welded of the battery is located below the first through hole, the battery blocks the signal transmission between the two second photoelectric sensors.

[0015] As a further scheme of the dust removal mechanism for battery welding, the dust removal mechanism further comprises a dust cleaning assembly, the dust cleaning assembly comprises a dust extraction pipe, a motor, a cover body and a brush, the cover body is arranged at an output end of the motor, the brush is located in the cover body and partially protrudes from the cover body, an output shaft of the motor is in transmission connection with the brush through the cover body, the dust extraction pipe is in communication with one side of the cover body, and the cover body is selectively arranged at the upper end of the cylinder.

[0016] In another aspect, the utility model provides a battery welding dust removal device, including battery welding mechanism and dust removal mechanism for battery welding, battery welding mechanism includes second frame, drive assembly and laser emission instrument, drive assembly installs on second frame and is connected with laser emission instrument, drive assembly can drive laser emission instrument moves to the laser emission head of laser emission instrument is located above cylinder and is opposite the conical hole of conical cylinder in X direction, Y direction or Z direction.

[0017] Beneficial effects:

[0018] In the process of laser welding of battery, the protective gas conveyed by the protective gas conveying pipe is blown to the welding position of the battery through the second gap, and the welding position is protected from oxidation, and part of the welding slag generated in the process of conveying protective gas is blown away, and the notch formed in the side wall of the conical cylinder can make the air suction port of the air suction pipe face the battery welding position, so that the welding slag generated in the welding process and part of the welding slag blown away by the protective gas can be quickly sucked away, so as to improve the welding quality of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further explained in detail according to the drawings and examples.

[0020] Figure 1 It is the structural schematic diagram of battery welding dust removal mechanism (not including dust cleaning assembly) for the embodiment of the utility model;

[0021] Figure 2 It is the structural schematic diagram of dust removal assembly (not including air knife) for the embodiment of the utility model;

[0022] Figure 3 It is the sectional view schematic diagram of dust removal assembly (not including support, air knife and explosion-proof anemograph) for the embodiment of the utility model;

[0023] Figure 4 It is the structural schematic diagram of dust cleaning assembly for the embodiment of the utility model;

[0024] Figure 5 It is the structural schematic diagram of battery welding dust removal device under the first visual angle for the embodiment of the utility model;

[0025] Figure 6 The structural schematic diagram under the second visual angle of the battery welding dust removal device is described in the embodiments of the utility model;

[0026] In the drawing,

[0027] 1, battery welding dust removal mechanism;100, first rack;110, mounting frame;200, work platform;300, dust removal assembly;310, exhaust pipe;320, laser shooting part;321, base;3211, second through hole;3212, adjusting long hole;322, cylinder;323, tapered cylinder;3231, tapered hole;3232, notch;324, protective gas delivery pipe;325, extension;330, support;340, air knife;350, explosion-proof anemometer;360, dust observation tube;400, dust cleaning assembly;410, dust extraction pipe;420, motor;430, cover;440, brush;450, suspension;500, driving part;600, first guide assembly;700, elastic support part;810, limit sensing part;820, first photoelectric sensor;830, second photoelectric sensor;

[0028] 2, battery welding mechanism;21, second rack;22, driving assembly;221, first servo motor;222, second servo motor;223, third servo motor;23, laser emitter. DETAILED DESCRIPTION

[0029] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0030] In the description of the utility model, unless otherwise explicitly specified and limited, the terms 'connected', 'connected', 'fixed' should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are merely used for distinction in description and have no special meaning.

[0033] The dust removal mechanism 1 for battery welding in this embodiment is applicable to round batteries, elliptical batteries, and square batteries, etc. The following will take a square battery as an example to further describe the dust removal mechanism for battery welding of this utility model in detail.

[0034] like Figures 1 to 3 As shown, the dust removal mechanism for battery welding in this embodiment includes a first frame 100, a working platform 200, and several sets of dust removal components 300. The working platform 200 is mounted on the first frame 100, and a first through hole (not shown in the figure) is opened along the Z direction on the working platform 200. Each set of dust removal components 300 includes an exhaust pipe 310 and a laser atomizing part 320. The laser atomizing part 320 includes a base 321, a cylinder 322 mounted on the base 321, and a conical cylinder 323 disposed inside the cylinder 322. The base 321 is mounted on the working platform 200, and the base 321 has a second through hole facing the first through hole. The conical hole 3231 (laser firing port) of the conical cylinder 323 is directly opposite the second through hole 3211, and there is a first gap between the outer wall of the conical cylinder 323 and the second through hole 3211. The upper end of the conical cylinder 323 is sealed to the upper end of the cylindrical cylinder 322. There is a second gap between the outer wall of the conical cylinder 323 and the inner wall of the cylindrical cylinder 322. The outer wall of the cylindrical cylinder 322 is connected to a protective gas delivery pipe 324 and an exhaust pipe 310. Both the protective gas delivery pipe 324 and the exhaust pipe 310 are connected to the second gap. The side wall of the conical cylinder 323 has an exhaust port 3232 that is directly opposite the exhaust pipe 310.

[0035] In this embodiment, the conical hole 3231 of the conical cylinder 323 is the laser emitting channel, and the laser is emitted from the conical hole 3231 to the welding position of the battery. During the welding process, the protective gas delivered by the protective gas delivery pipe 324 is blown to the welding position of the battery through the second gap, so as to prevent oxidation of the welding position. During the process of delivering the protective gas, part of the welding slag generated during the welding process is also blown away. The notch 3232 formed in the side wall of the conical cylinder 323 can make the air suction port of the air suction pipe 310 face the welding position of the battery, so that the welding slag generated during the welding process and the part of the welding slag blown away by the protective gas can be quickly sucked away together, so as to improve the welding quality of the battery.

[0036] Exemplarily, the number of the dust removal assemblies 300 is two, and the two dust removal assemblies 300 are arranged side by side. Each of the dust removal assemblies 300 further comprises a bracket 330, and one end of the air suction pipe 310 away from the cylinder 322 is fixed on the bracket 330, so as to be connected with an external air suction machine. In addition, in order to ensure that the environment for laser welding is dust-free, the dust removal assembly 300 further comprises an air knife 340, and the air knife 340 is installed on the bracket 330.

[0037] Further, the dust removal assembly 300 further comprises an explosion-proof anemometer 350, and the explosion-proof anemometer 350 is installed on the bracket 330, so as to measure the wind speed of the air knife 340, and play an explosion-proof effect.

[0038] Further, the protective gas delivery pipe 324 and the air suction pipe 310 are located on both sides of the cylinder 322 along the radial direction of the cylinder 322. In this embodiment, the protective gas delivery pipe 324 and the air suction pipe 310 are located on both sides of the cylinder 322 along the radial direction of the cylinder 322, which means that the line between the connection position of the protective gas delivery pipe 324 and the center of the cylinder 322 and the line between the connection position of the air suction pipe 310 and the center of the cylinder 322 are 180°, so that the welding slag on the welding position of the battery can be moved towards the direction of the air suction port of the air suction pipe 310 by the protective gas, and the dust removal effect is improved.

[0039] The gas delivered in the protective gas delivery pipe 324 in this embodiment can be nitrogen or other protective gas.

[0040] Further, one end of the protective gas delivery pipe 324 is connected with the cylinder 322, and the other end extends upwardly and obliquely; one end of the air suction pipe 310 is connected with the cylinder 322, and the other end extends upwardly and obliquely.

[0041] It can be understood that the protective gas delivery pipe 324 and the suction pipe 310 are respectively arranged in an inclined manner, so that the protective gas delivered by the protective gas delivery pipe 324 enters the second gap and flows along the inclined surface of the conical cylinder 323 to the edge position of the battery welding position, and then moves from the edge position to the direction close to the notch 3232 along the battery welding position, and the suction pipe 310 arranged in an inclined manner is opposite to the notch 3232, so that the effect of rapid dust removal is achieved.

[0042] In the embodiment, the bottom of the conical cylinder 323 passes through the second through hole 3211 and extends into the first through hole; the inner wall of the second through hole 3211 is provided with an extension 325 towards the center of the second through hole 3211, the extension 325 is spaced from the outer wall of the conical cylinder 323, and the extension 325 is adjacent to the outlet end of the protective gas delivery pipe 324. In the embodiment, the second through hole 3211 is arranged only at the position adjacent to the outlet end of the protective gas delivery pipe 324 on the base 321, so as to reduce the gap between the hole wall of the second through hole 3211 on the base 321 and the outer wall of the conical cylinder 323, improve the effect of protective gas gathering and flow rate, and thus improve the anti-oxidation protection effect of the battery welding position.

[0043] Further, the dust removal assembly 300 of the embodiment further comprises a fastening bolt, the base 321 is provided with an adjusting long hole 3212, the workbench 200 is provided with a connecting hole corresponding to the adjusting long hole 3212, and the fastening bolt is screwed into the connecting hole through the adjusting long hole 3212, so as to fixedly connect the base 321 and the workbench 200.

[0044] In this way, on the basis that the adjusting long hole 3212 is aligned with the connecting hole, the position of the base 321 on the workbench 200 can be adjusted, so that the conical hole 3231 of the conical cylinder 323 is aligned with the battery welding position; after the position is adjusted, the fastening bolt is screwed into the connecting hole through the adjusting long hole 3212, so as to fix the base 321 on the workbench 200.

[0045] In the embodiment, the dust removal assembly 300 further comprises a dust observation pipe 360, the suction pipe 310 is provided with a dust observation opening adjacent to the cylinder 322, and the dust observation pipe 360 is connected with the dust observation opening. Since the dust layer is prone to accumulate at the lowest position of the suction pipe 310 and in the conical hole 3231. In view of this, the dust observation opening connected with the dust observation pipe 360 is arranged on the suction pipe 310 adjacent to the cylinder 322, so as to facilitate observation.

[0046] For example, a transparent observation window is detachably installed at one end of the dust observation pipe 360 away from the suction pipe 310, and the transparent observation window can be fixed to the end of the dust observation pipe 360 in the form of a bolt or a buckle. When it is observed that the dust accumulates in the suction pipe 310, the conical hole 3231 can be cleaned.

[0047] To this end, the embodiment further adds a dust cleaning assembly 400, as shown in the figure. Figure 4 The dust cleaning assembly 400 includes a dust suction pipe 410, a motor 420, a cover body 430 and a brush 440. The cover body 430 is arranged below the motor 420, the brush 440 is located in the cover body 430 and partially protrudes from the cover body 430, the output shaft of the motor 420 is in transmission connection with the brush 440 through the cover body 430, and the dust suction pipe 410 is in communication with one side of the cover body 430.

[0048] When dust needs to be cleaned, the cover body 430 is arranged on the cylinder 322, and the brush 440 partially extends into the conical hole 3231; the motor 420 is started, and the motor 420 drives the brush 440 to rotate, thereby achieving dust cleaning.

[0049] In the embodiment, the brush 440 includes a brush roller and bristles arranged on the outer periphery and bottom of the brush roller, and the brush roller is in transmission connection with the motor 420. The brush 440 designed in this way has good dust removal effect.

[0050] The dust cleaning assembly 400 further includes a hanging part 450, and the hanging part 450 is provided with a hanging hole. When the dust cleaning assembly 400 is not needed, the dust cleaning assembly 400 can be hung, for example, a hook (not shown in the figure) matched with the hanging hole is installed on the first rack 100 or the support 330, and the dust cleaning assembly 400 is hung on the first rack 100 or the support 330.

[0051] Further, the dust removal mechanism for battery welding of the embodiment further includes a driving part 500 and a first guide assembly 600 for guiding in the Z direction, the first rack 100 includes two mounting racks 110 arranged in the X direction, the driving part 500 is installed on at least one mounting rack 110 and connected with the working platform 200, the working platform 200 is located above the mounting rack 110 and connected with the mounting rack 110 through the first guide assembly 600, and the driving part 500 can drive the working platform 200 to move in the Z direction, and the X direction is perpendicular to the Z direction.

[0052] When the battery is conveyed to the lower side of the working platform 200 and opposite to the conical hole 3231 of the conical cylinder 323, the driving part 500 drives the working platform 200 to move downward in the Z direction under the action of the first guide assembly 600 until the working platform 200 closely abuts the battery.

[0053] In the embodiment, the driving part 500 is a pneumatic cylinder, and one pneumatic cylinder is arranged on each side of the two mounting racks 110 in the X direction. By arranging two pneumatic cylinders and the first guide assembly 600, the stability of the upward and downward movement of the working platform 200 can be improved. Of course, in other embodiments, the driving part 500 can also be a linear motor.

[0054] The first guide assembly 600 comprises a connecting plate, a first guide rail and a first sliding block. The connecting plate is fixedly connected to the side of the working platform 200. The side of the connecting plate facing the mounting rack 110 is provided with the first guide rail. The first sliding block is arranged on the side of the mounting rack 110 opposite to the connecting plate. The first sliding block is provided with a sliding groove in sliding fit with the first guide rail. The first sliding block is in sliding connection with the first guide rail. In other embodiments, the first guide rail can be arranged on the side of the mounting rack 110 opposite to the connecting plate. The first sliding block can be arranged on the side of the connecting plate opposite to the mounting rack 110. The first sliding block is in sliding fit with the first guide rail. The movement of the working platform 200 in the Z direction can also be guided.

[0055] Further, the dust removal mechanism for battery welding of the embodiment further comprises two elastic supporting parts 700. The two elastic supporting parts 700 are respectively connected to the working platform 200 and the mounting rack 110 at two ends in the Z direction. That is, the upper end of the elastic supporting part 700 is connected to the working platform 200, and the lower end is connected to the mounting rack 110. When the driving part 500 drives the working platform 200 to move downward to tightly contact the battery, the elastic supporting part 700 can provide a buffering effect to avoid the rigid contact between the working platform 200 and the battery and damage the battery.

[0056] For example, the elastic supporting part 700 is a supporting spring.

[0057] The dust removal mechanism for battery welding of the embodiment further comprises a limiting sensing part 810 and two first photoelectric sensors 820. The two first photoelectric sensors 820 are arranged at the edge position of the mounting rack 110 in the Y direction in the Z direction. The limiting sensing part 810 is connected to the working platform 200 and extends between the two first photoelectric sensors 820. The X direction, the Y direction and the Z direction are perpendicular to each other. By arranging the limiting sensing part 810 and the two first photoelectric sensors 820, when the battery moves from the logistics line to the vicinity of the dust removal station, the driving part 500 drives the working platform 200 to lift with the first guide assembly 600, and simultaneously drives the limiting sensing part 810 to move to the sensing area of the first photoelectric sensor 820 located above. The logistics line urgently needs to deliver the battery to the set position (opposite to the first through hole) below the working platform 200. At this time, the driving part 500 drives the working platform 200 to press downward to tightly contact the battery top cover with the first guide assembly 600. The supporting spring is contracted.

[0058] Further, as shown in Figure 6 The dust removal mechanism for battery welding of the embodiment further comprises two second photoelectric sensors 830. The two second photoelectric sensors 830 are respectively arranged on opposite sides of the mounting rack 110. When the position to be welded of the battery is located below the first through hole, the battery blocks the signal transmission between the two second photoelectric sensors 830. At this time, the laser emitter can be triggered to move to the set position for laser welding.

[0059] As Figure 5 and Figure 6 shown, the embodiment also provides a battery welding dust removal device, which comprises a battery welding mechanism 2 and the dust removal mechanism 1 of any one of the above embodiments. The battery welding mechanism 2 comprises a second rack 21, a driving assembly 22 and a laser emitter 23. The driving assembly 22 is installed on the second rack 21 and connected with the laser emitter 23. The driving assembly 22 can drive the laser emitter 23 to move along the X direction, the Y direction or the Z direction, so that the laser emitting head of the laser emitter 23 is located above the cylinder 322 and faces the conical hole 3231 of the conical cylinder 323.

[0060] Exemplarily, the driving assembly 22 comprises a first servo motor 221, a second servo motor 222 and a third servo motor 223. The first servo motor 221 is installed on the second rack 21 and connected with the second servo motor 222 through a first intermediate connecting piece, for driving the second servo motor 222 to move along the Y direction. The second servo motor 222 is installed on the first intermediate connecting piece and connected with the third servo motor 223 through a second intermediate connecting piece, for driving the third servo motor 223 to move along the Z direction. The third servo motor 223 is connected with the laser emitter 23 through a third intermediate connecting piece, for driving the laser emitter 23 to move along the X direction.

[0061] Further, the battery welding mechanism 2 further comprises a second guide assembly for guiding along the Y direction, a third guide assembly for guiding along the Z direction and a fourth guide assembly for guiding along the X direction. The second guide assembly connects the second rack 21 and the first intermediate connecting piece. The third guide assembly connects the first intermediate connecting piece and the second intermediate connecting piece. The fourth guide assembly connects the second intermediate connecting piece and the third intermediate connecting piece.

[0062] Among them, the second guide assembly comprises a second guide rail installed on the second rack 21 and a second sliding block installed on the side of the first intermediate connecting piece facing the second guide rail. The second sliding block has a groove slidingly matched with the second guide rail, and the second sliding block is slidingly matched with the second guide rail. The third guide assembly comprises a third guide rail installed on the first intermediate connecting piece and a third sliding block installed on the side of the second intermediate connecting piece facing the third guide rail. The third sliding block has a groove slidingly matched with the third guide rail, and the third sliding block is slidingly matched with the third guide rail. The fourth guide assembly comprises a fourth guide rail installed on the second intermediate connecting piece and a fourth sliding block installed on the side of the third intermediate connecting piece facing the fourth guide rail. The fourth sliding block has a groove slidingly matched with the fourth guide rail, and the fourth sliding block is slidingly matched with the fourth guide rail. Of course, in other embodiments, the installation positions of the sliding block and the guide rail can also be interchanged. Taking the second guide assembly as an example, the second guide rail can be installed on the first intermediate connecting piece and the second sliding block can be installed on the second rack 21, both of which can realize the three-axis guided movement of the laser emitter, and the specific details are not described again.

[0063] The working principle of the battery welding dust removal device of the embodiment is as follows:

[0064] When the battery moves to the vicinity of the dust removal station from the logistics line, the two side cylinders start to lift the working platform 200 along with the first guide rail, and when the limiting sensing part 810 rises to the sensing area of the first photoelectric sensor 820, the battery enters the set position under the working platform 200, the two side cylinders retract to make the working platform 200 press and fit the battery top cover, the supporting spring contracts, and the sensing area of the second photoelectric sensor 830 is blocked by the battery, and the first servo motor 221, the second servo motor 222 and the third servo motor 223 start to move the laser emitter 23 along the three-axis direction to the laser emission port (the conical hole 3231); the laser emitter 23 starts to work, radiates laser cleaning to the battery top cover through the conical hole 3231, and continuously supplies protective nitrogen gas through the protective gas delivery pipe 324 to ensure the continuous ventilation of the protective gas flow from the outlet to the inlet, and the exhaust fan starts to draw dust away from the exhaust port through the exhaust pipe 310, and the explosion-proof anemometer 350 detects the wind speed of the air knife 340; after the laser welding is completed, the first servo motor 221, the second servo motor 222 and the third servo motor 223 start to move the laser emitter 23 to restore, the two side cylinders start to lift the working platform 200, and when the limiting sensing part 810 rises to the upper limit of the first photoelectric sensor 820, the battery moves to the next station along with the logistics line, and when the dust observation port and the conical hole 3231 are observed to have dust accumulation, the dust cleaning assembly 400 is taken off and mounted on the cylinder 322, the start button of the dust cleaning assembly 400 is pressed, the motor 420 is started to clean the dust in the conical hole 3231 in all directions, the dust is drawn away from the dust extraction pipe 410, and after use, the dust cleaning assembly 400 is manually hung back to the first rack 100 or the support 330; after each mechanism completes the action, the initial state is restored.

[0065] For laser cleaning of the battery top cover, the principle is the same as the above embodiment, and details are not repeated.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dust removing mechanism for battery welding, characterized by comprising: The dust removal assembly comprises a first rack, a work platform and a plurality of dust removal assemblies, the work platform is installed on the first rack, the work platform is provided with a first through hole in the Z direction, each dust removal assembly comprises an exhaust pipe and a laser shooting part, the laser shooting part comprises a base, a cylinder installed on the base and a conical cylinder arranged in the cylinder, the base is installed on the work platform, the base is provided with a second through hole facing the first through hole, the conical hole of the conical cylinder faces the second through hole, and the outer wall of the conical cylinder and the second through hole have a first gap, the upper end of the conical cylinder is sealingly connected with the upper end of the cylinder, the outer wall of the conical cylinder and the inner wall of the cylinder have a second gap, the outer wall of the cylinder is connected with a protective gas delivery pipe and the exhaust pipe, the protective gas delivery pipe and the exhaust pipe are in communication with the second gap, and the side wall of the conical cylinder is provided with a notch facing the exhaust port of the exhaust pipe.

2. The dust removing mechanism for battery welding according to claim 1, characterized by The protective gas delivery pipe and the exhaust pipe are located on both sides of the cylinder along the radial direction of the cylinder.

3. The dust removing mechanism for battery welding according to claim 1, characterized by One end of the protective gas delivery pipe is connected with the cylinder, and the other end extends upwardly and obliquely; one end of the exhaust pipe is connected with the cylinder, and the other end extends upwardly and obliquely.

4. The dust removing mechanism for battery welding according to claim 1, characterized by The bottom of the conical cylinder passes through the second through hole and extends into the first through hole; the inner wall of the second through hole is provided with an extension part towards the center of the second through hole, the extension part is spaced from the outer wall of the conical cylinder, and the extension part is adjacent to the outlet end of the protective gas delivery pipe.

5. The dust removing mechanism for battery welding according to claim 1, characterized by The dust removal assembly further comprises a fastening bolt, the base is provided with an adjusting long hole, the work platform is provided with a connecting hole corresponding to the adjusting long hole, the fastening bolt is screwed into the connecting hole through the adjusting long hole, so that the base and the work platform are fixedly connected.

6. The dust removing mechanism for battery welding according to claim 1, characterized by The dust removal assembly further comprises a dust observation tube, the exhaust pipe is provided with a dust observation port adjacent to the cylinder, and the dust observation tube is connected with the dust observation port.

7. The dust removal mechanism for battery welding according to any one of claims 1 to 6, characterized by The dust removal assembly further comprises a driving part and a first guide assembly for guiding in the Z direction, the first rack comprises two mounting racks spaced apart in the X direction, the driving part is installed on at least one mounting rack and connected with the work platform, the work platform is located above the mounting rack and connected with the mounting rack through the first guide assembly, the driving part can drive the work platform to move in the Z direction, and the X direction is perpendicular to the Z direction.

8. The dust removing mechanism for battery welding according to claim 7, characterized by The dust removal assembly further comprises two elastic support parts, each elastic support part is connected with the work platform and the mounting rack at both ends in the Z direction.

9. The dust removing mechanism for battery welding according to claim 7, characterized by The dust removal assembly further comprises a limiting sensing part and two first photoelectric sensors, the two first photoelectric sensors are installed at the edge of the mounting rack in the Y direction and spaced apart in the Z direction, the limiting sensing part is connected with the work platform and extends between the two first photoelectric sensors, and the X direction, the Y direction and the Z direction are perpendicular to each other.

10. The dust removing mechanism for battery welding according to claim 7, characterized by Two second photoelectric sensors are further included, which are respectively installed on opposite sides of the mounting frame, and when the position to be welded of the battery is located below the first through hole, the battery blocks the signal transmission between the two second photoelectric sensors.

11. The dust removing mechanism for battery welding according to claim 7, characterized by A dust cleaning assembly is further included, which comprises a dust suction pipe, a motor, a cover body and a brush. The cover body is arranged at the output end of the motor, the brush is located in the cover body and partially protrudes from the cover body, the output shaft of the motor is in transmission connection with the brush through the cover body, the dust suction pipe is in communication with one side of the cover body, and the cover body is selectively arranged on the upper end of the cylinder.

12. A battery welding dust extraction apparatus characterized by, The battery welding mechanism and the dust removal mechanism for battery welding according to any one of claims 1 to 11 are included, wherein the battery welding mechanism comprises a second rack, a driving assembly and a laser emitter. The driving assembly is installed on the second rack and connected with the laser emitter. The driving assembly can drive the laser emitter to move in the X direction, the Y direction or the Z direction so that the laser emitting head of the laser emitter is located above the cylinder and faces the conical hole of the conical cylinder.

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