Laser welding device and welding wire body

Abstract

The invention relates to a laser welding device and a welding wire body, and the laser welding device comprises a welding head which is used for being arranged on one side of a battery to be welded, and the welding direction of the welding head faces the battery; and the dustproof mechanism is arranged in the welding direction of the welding head. The welding head is arranged on one side of the battery, the dustproof mechanism is arranged in the welding direction, welding slag and foreign matter are prevented from falling into the welding head in the welding process, the welding head is prevented from being damaged or light emitting of the welding head is affected, and therefore the welding head can be arranged in the position, where the welding slag easily falls, below the battery; therefore, the welding heads can be arranged around the battery in multiple directions, the battery can be welded in multiple directions at the same time, the welding time is shortened, the working efficiency is improved, the battery does not need to be turned over, and the operation procedures are reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of battery processing technology, and in particular, to a laser welding device and a welding wire body. Background Art

[0002] During battery assembly, after the battery cell is installed into the shell, the electrode cover plate and the shell need to be welded. In the related art, the welding head of the welding device can only weld downward, so only the upper part of the shell can be welded. If the lower part of the shell needs to be welded, the battery and the fixture can only be turned over before welding, which will lead to complicated procedures and low efficiency. Summary of the invention

[0003] The purpose of the present disclosure is to provide a laser welding device and a welding wire body, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above objectives, the present disclosure provides a laser welding device, including: a welding head, which is used to be set on one side of a battery to be welded, and the welding direction of the welding head is toward the battery; and a dustproof mechanism, which is set in the welding direction of the welding head.

[0005] Optionally, the welding head is arranged below the battery, and the welding direction of the welding head is toward the bottom of the battery.

[0006] Optionally, the dustproof mechanism includes a base and a protective lens, the base is arranged in the welding direction of the welding head, and a through hole for the laser to pass through is opened in the base, and the protective lens is arranged in the base to cover the through hole.

[0007] Optionally, the dustproof mechanism also includes a mounting piece and a fastener, the mounting piece is provided with a mounting hole for installing the protective lens, the base is provided with a first slot, the mounting piece is inserted into the first slot along a direction perpendicular to the laser emission direction and fixed by the fastener.

[0008] Optionally, the dustproof mechanism further includes a dustproof plate, a second slot is provided on the base, and the dustproof plate is detachably inserted into the second slot and blocks the through hole.

[0009] Optionally, the dust-proof mechanism also includes an air blowing device, which is arranged on a side of the base away from the welding head, and a blowing hole is provided in the air blowing device, which extends in the same direction as the laser emission direction and is coaxially arranged with the through hole, and an air outlet end of the air hole is arranged toward the battery, and an air inlet end of the air blowing device is arranged on the side of the air blowing device and is located on the side of the protective lens away from the welding head.

[0010] Optionally, the end surface of the air outlet end of the blowing device is inclined.

[0011] Optionally, the dust prevention mechanism further includes a dust suction pipe, the air outlet end of the air blowing device extends into the dust suction pipe, and the air inlet end of the dust suction pipe opens toward the battery and is located outside the air outlet end of the air blowing device.

[0012] Optionally, the air inlet end of the dust suction pipe is an open end, and the diameter of the open end is larger than the outer diameter of the blowing device.

[0013] Optionally, a section of the dust suction pipe close to the air inlet end is inclined toward the base.

[0014] Optionally, the laser welding device also includes a first transverse movement module and a second transverse movement module, the first transverse movement module is vertically arranged with respect to the second transverse movement module, the first transverse movement module is arranged on the second transverse movement module and can move along the second transverse movement module, and the welding head is arranged on the first transverse movement module and can move along the first transverse movement module.

[0015] The second object of the present disclosure is to provide a welding wire body, comprising: a frame; a clamp, the battery is mounted on the frame through the clamp; and a plurality of laser welding devices, arranged around the battery, wherein at least one laser welding device is the above-mentioned laser welding device.

[0016] Through the above technical solution, the welding head is arranged on one side of the battery and a dustproof mechanism is arranged in the welding direction to prevent welding slag and foreign matter from falling into the welding head during welding, causing damage to the welding head or affecting the light output of the welding head. In this way, the welding head can be arranged at a position where welding slag is easy to fall, such as below the battery. Therefore, the welding head can be arranged in multiple positions around the battery, and the battery can be welded in multiple positions at the same time, which shortens the welding time, improves work efficiency, and does not need to flip the battery, thereby reducing the operation process.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic structural diagram of a welding wire body in the present disclosure; Figure 2 is a schematic structural diagram of a laser welding device in the present disclosure; Figure 3 It is a structural schematic diagram of the welding head and the dust prevention mechanism in the present disclosure; Figure 4 is an exploded view of the dust prevention mechanism in the present disclosure; Figure 5 is a cross-sectional view of the dust prevention mechanism in the present disclosure.

[0019] Description of Reference Numerals 1. Welding head; 2. Dust-proof mechanism; 21. Base; 211. First slot; 212. Second slot; 213. Through hole; 22. Air blowing device; 221. Air blowing hole; 23. Dust suction pipe; 24. Dust-proof plate; 25. Protective lens; 26. Mounting piece; 261. Mounting hole; 27. Fastener; 3. Battery; 4. Clamp; 5. Frame; 6. First transverse movement module; 7. Second transverse movement module. DETAILED DESCRIPTION

[0020] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0021] In the present disclosure, unless otherwise stated, the directional words used, such as "upper, lower, top, and bottom", generally refer to the upper, lower, top, and bottom of the corresponding component in the direction of gravity when in use, and "inner and outer" refer to the inner and outer relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first, second", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0022] The present disclosure provides a laser welding device, comprising: a welding head 1, which is used to be arranged on one side of a battery 3 to be welded, and the welding direction of the welding head 1 is toward the battery 3; and a dustproof mechanism 2, which is arranged in the welding direction of the welding head 1.

[0023] Through the above technical solution, laser welding uses high-energy laser pulses to locally heat the material in a small area. The energy of the laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool. The welding head 1 is provided with a laser emitter and a main lens and other devices. The welding head 1 is arranged on one side of the battery 3 and a dustproof mechanism 2 is arranged in the welding direction to prevent welding slag and foreign matter from falling into the welding head 1 during welding, causing damage to the welding head 1 or affecting the light output of the welding head 1. In this way, the welding head 1 can be arranged at a position such as below the battery 3 where welding slag is easy to fall, so that the welding head 1 can be arranged in multiple positions around the battery 3, and the battery 3 can be welded in multiple positions at the same time, shortening the welding time, improving work efficiency, and there is no need to flip the battery 3, reducing the operation process.

[0024] As an optional implementation, Figure 1-2As shown, the welding head 1 is arranged below the battery 3, and the welding direction of the welding head 1 is toward the bottom of the battery 3, so that the bottom of the battery 3 can be directly welded, and the welding slag dropped during welding is blocked and cleaned by the dustproof device, and there is no need to turn over the battery 3, thereby improving work efficiency.

[0025] As an optional implementation, Figure 3-5 As shown, the dustproof mechanism 2 includes a base 21 and a protective lens 25. The base 21 is arranged in the welding direction of the welding head 1, and a through hole 213 for the laser to pass through is opened in the base 21. The protective lens 25 is arranged in the base 21 and blocks the through hole 213. The laser passes through the through hole 213 on the base 21 to weld the battery 3. The protective lens 25 is installed at the through hole 213. The protective lens 25 blocks the through hole 213 to prevent welding slag from falling onto the main lens of the welding head 1 and damaging the main lens.

[0026] Alternatively, if Figure 4 As shown, the dustproof mechanism 2 also includes a mounting member 26 and a fastener 27. The mounting member 26 is provided with a mounting hole 261 for installing the protective lens 25. The base 21 is provided with a first slot 211. The mounting member 26 is inserted into the first slot 211 in a direction perpendicular to the laser emission direction and fixed by the fastener 27. The protective lens 25 is installed on the mounting member 26. The mounting member 26 is configured as a mounting plate. The fastener 27 is configured as a locking pin. The mounting plate is inserted into the first slot 211 and fixed by the locking pin. When the protective lens 25 needs to be replaced, the locking pin is opened to pull out the mounting plate, which is convenient for operation.

[0027] Alternatively, if Figure 3-5 As shown, the dustproof mechanism 2 also includes a dustproof plate 24. A second slot 212 is provided on the base 21. The dustproof plate 24 is detachably inserted into the second slot 212 and blocks the through hole 213. When replacing the protective lens 25, the dustproof plate 24 is inserted into the second slot 212. The second slot 212 can be set above or below the first slot 211, and then the protective lens 25 is pulled out for replacement. After the replacement is completed, the dustproof plate 24 is removed to prevent welding slag or foreign matter from falling onto the main lens when replacing the protective lens 25.

[0028] As an optional implementation, Figure 2-5As shown, the dustproof mechanism 2 also includes an air blowing device 22, which is arranged on the side of the base 21 away from the welding head 1. The air blowing device 22 is provided with an air blowing hole 221 extending in the same direction as the laser emission direction and coaxially arranged with the through hole 213. The air outlet end of the air blowing hole 221 is arranged toward the battery 3, and the air inlet end of the air blowing device 22 is arranged on the side of the air blowing device 22 and is located on the side of the protective lens 25 away from the welding head 1, so as to prevent the protective lens 25 from blocking the air intake of the air blowing device 22 and also prevent the air inlet end of the air blowing device 22 from blocking the through hole 213. The laser passes through the through hole 213 and the air blowing hole 221, and the air blowing device 22 blows toward the welding direction to blow away the fallen welding slag and dust, and prevent the welding slag from falling into the protective lens 25 through the through hole 213, thereby protecting the protective lens 25 and increasing the service life of the protective lens 25.

[0029] Alternatively, if Figure 4 As shown, the end surface of the air outlet of the blowing device 22 is inclined, and when the welding slag falls onto the part outside the blowing hole 221, it can slide down along the inclined surface to prevent the welding slag from accumulating.

[0030] In addition, if Figure 3-5 As shown, the dust-proof mechanism 2 also includes a dust suction pipe 23. The air outlet end of the air blowing device 22 extends into the dust suction pipe 23. The air inlet end of the dust suction pipe 23 opens toward the battery 3 and is located outside the air outlet end of the air blowing device 22. In this way, the falling welding slag first enters the dust suction pipe 23, and the welding slag blown out by the air blowing device 22 can also fall into the dust suction pipe 23. The air outlet end of the dust suction pipe 23 is connected to a vacuum device. The dust suction pipe 23 can clean and collect the welding slag in time to prevent it from accumulating at the end of the welding head 1, thereby protecting the welding head 1.

[0031] Alternatively, if Figure 4 As shown, the air inlet end of the dust suction pipe 23 is an open end, and the diameter of the open end is larger than the outer diameter of the blowing device 22. The open end can increase the collection area, making it easier for welding slag to fall into the dust suction pipe 23. The diameter of the air inlet end of the dust suction pipe 23 is much larger than the diameter of the blowing hole 221, so the air outlet of the blowing hole 221 will not affect the dust collection.

[0032] Alternatively, if Figure 5 As shown, a section of the dust suction pipe 23 close to the air inlet end is inclined toward the base 21, so that foreign objects falling into the dust suction pipe 23 can slide down along the inclined section to avoid accumulation.

[0033] As an optional implementation, Figure 1-2As shown, the laser welding device also includes a first transverse moving module 6 and a second transverse moving module 7. The first transverse moving module 6 is vertically arranged with the second transverse moving module 7. The first transverse moving module 6 is arranged on the second transverse moving module 7 and can move along the second transverse moving module 7. The second transverse moving module 7 is provided with a first slide for sliding the first transverse moving module 6. The welding head 1 is arranged on the first transverse moving module 6 and can move along the first transverse moving module 6. The first transverse moving module 6 is provided with a second slide for sliding the welding head 1, so that the welding head 1 can move along the welding trajectory, for example, the first transverse moving module 6 moves along the Y-axis, and the second transverse moving module 7 moves along the X-axis. It can be driven by a motor and a screw, or by a motor and a gear rack.

[0034] like Figure 1 As shown, the second object of the present disclosure is to provide a welding wire body, including: a frame 5; a clamp 4, the battery 3 is installed on the frame 5 through the clamp 4; and a plurality of laser welding devices, which are arranged around the battery 3, for example, arranged on the upper and lower sides of the battery 3, and the upper and bottom of the battery 3 are welded at the same time, so that the clamp 4 does not need to be turned over and can quickly flow to the next workstation for operation, thereby realizing a clamp 4 for multiple workstations continuous operation, wherein at least one laser welding device is the above-mentioned laser welding device, and the laser welding device is arranged below the battery 3.

[0035] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0037] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A laser welding device, characterized in that: include: A welding head, used to be arranged on one side of the battery to be welded, and the welding direction of the welding head is toward the battery; as well as The dust-proof mechanism is arranged in the welding direction of the welding head.

2. The laser welding device according to claim 1, characterized in that: The welding head is arranged below the battery, and the welding direction of the welding head faces the bottom of the battery.

3. The laser welding device according to claim 1 or 2, characterized in that: The dustproof mechanism comprises a base and a protective lens. The base is arranged in the welding direction of the welding head, and a through hole for the laser to pass through is opened in the base. The protective lens is arranged in the base and blocks the through hole.

4. The laser welding device according to claim 3, characterized in that: The dustproof mechanism also includes a mounting piece and a fastener. The mounting piece is provided with a mounting hole for mounting the protective lens. The base is provided with a first slot. The mounting piece is inserted into the first slot along a direction perpendicular to the laser emission direction and fixed by the fastener.

5. The laser welding device according to claim 3, characterized in that: The dustproof mechanism also includes a dustproof plate. A second slot is provided on the base. The dustproof plate is detachably inserted into the second slot and blocks the through hole.

6. The laser welding device according to claim 3, characterized in that: The dust-proof mechanism also includes an air blowing device, which is arranged on a side of the base away from the welding head. The air blowing device is provided with an air hole extending in the same direction as the laser emission direction and coaxially arranged with the through hole. The air outlet end of the air hole is arranged toward the battery, and the air inlet end of the air blowing device is arranged on the side of the air blowing device and is located on the side of the protective lens away from the welding head.

7. The laser welding device according to claim 6, characterized in that: The end surface of the air outlet end of the air blowing device is arranged inclined.

8. The laser welding device according to claim 6, characterized in that: The dustproof mechanism further comprises a dust suction pipe, the air outlet end of the air blowing device extends into the dust suction pipe, and the air inlet end of the dust suction pipe opens toward the battery and is located outside the air outlet end of the air blowing device.

9. The laser welding device according to claim 8, characterized in that: The air inlet end of the dust suction pipe is an open end, and the diameter of the open end is larger than the outer diameter of the blowing device.

10. The laser welding device according to claim 8, characterized in that: A section of the dust suction pipe close to the air inlet end is arranged to be inclined toward the base.

11. The laser welding device according to claim 1, characterized in that: The laser welding device also includes a first transverse movement module and a second transverse movement module, the first transverse movement module is vertically arranged with respect to the second transverse movement module, the first transverse movement module is arranged on the second transverse movement module and can move along the second transverse movement module, and the welding head is arranged on the first transverse movement module and can move along the first transverse movement module.

12. A welding wire body, characterized in that: include: Frame; A clamp, through which the battery is mounted on the frame; as well as A plurality of laser welding devices are arranged around the battery, wherein at least one of the laser welding devices is a laser welding device according to any one of claims 1-11.

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