High-speed periphery welding equipment for battery top cover

Abstract

The utility model relates to high-speed periphery welding equipment for a battery top cover, which is used for carrying out periphery welding on the battery top cover and comprises a dust removal mechanism, the dust removal mechanism comprises an annular dust removal cover matched with the battery top cover and a dust removal fan, and a plurality of dust suction ports communicated with the dust removal fan are circumferentially arranged on the inner circumferential surface of the annular dust removal cover. The dust removal mechanism is arranged, during welding, the dust removal fan is started, dust generated during welding is sucked away from the dust suction opening, the annular dust removal cover is matched with the top cover, dust around the top cover can be effectively sucked away, and therefore the welding seam quality of the top cover is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production welding, in particular to a battery top cover high-speed peripheral welding device. Background Art

[0002] At present, on the automated production line of lithium-ion batteries, the top cover peripheral welding equipment generally uses a collimated welding head with a linear motor to achieve automatic welding. This welding solution has speed bottlenecks and R-angle welding weld bulge problems. At present, when the welding equipment is performing R-angle welding, the movement trajectory of the collimated welding head is an arc angle. The control of the two directions must be coordinated. At the same time, the power needs to be reduced and the welding speed must be accurately matched to weld a smooth and highly uniform weld. There are many restrictions and it is difficult to debug on site. With the implementation of extreme manufacturing requirements, high requirements are placed on production line equipment. At present, the top cover peripheral welding equipment that uses a collimated welding head with a linear motor has problems such as low efficiency and poor R-angle welding quality during welding, which need to be solved urgently. Utility Model Content

[0003] Based on this, it is necessary to provide a battery top cover high-speed peripheral welding equipment to address the technical problems of low efficiency and poor R-angle welding quality in the top cover peripheral welding equipment that currently uses a collimated welding head with a linear motor.

[0004] The utility model proposes a battery top cover high-speed peripheral welding device, which is used for peripheral welding of the battery top cover, and comprises a dust removal mechanism, which comprises an annular dust removal hood adapted to the battery top cover and a dust removal fan, and the inner circumferential surface of the annular dust removal hood is circumferentially provided with a plurality of dust suction ports connected to the dust removal fan.

[0005] The utility model provides a dust removal mechanism. During welding, the dust removal fan is started to suck away the dust generated by welding from the dust suction port. The annular dust removal hood is matched with the top cover, which can effectively suck away the dust around the top cover, thereby improving the quality of the top cover weld.

[0006] As a further improvement of the above-mentioned scheme of the utility model, the annular dust hood is a square annular structure, the annular dust hood is provided with an annular dust removal chamber, and the multiple dust suction ports on the inner circumference of the annular dust hood are connected with the annular dust removal chamber, and the four sides of the annular dust hood are provided with bent pipes connected with the annular dust removal chamber, and the bent pipes are connected with the dust removal fan through a hose.

[0007] As a further improvement of the above-mentioned scheme of the utility model, the battery top cover high-speed peripheral welding equipment also includes a protective gas blowing mechanism, which includes a plurality of air knife assemblies, and the plurality of air knife assemblies are circumferentially arranged at the bottom of the annular dust hood; each air knife assembly includes an upper air knife, a lower air knife, an air pipe joint and an air source, the upper air knife and the lower air knife are arranged up and down and are connected to the air pipe joint, the air outlets of the upper air knife and the lower air knife are both facing the peripheral weld of the battery top cover, and the air pipe joint is connected to the air source through a hose.

[0008] As a further improvement of the above scheme of the utility model, it also includes a mounting plate and a battery transplanting fixture, a driving mechanism, an upper protective cover mechanism and a welding mechanism installed on the mounting plate; an upper protective cover station and a welding station are arranged on the mounting plate; the battery transplanting fixture is used to clamp the battery and is driven by the driving mechanism to move between the upper protective cover station and the welding station; the upper protective cover mechanism is arranged at the upper protective cover station and is used to feed the top cover to the battery on the battery transplanting fixture at the upper protective cover station; the welding mechanism and the dust removal mechanism are both arranged at the welding station, the welding mechanism is used to perform high-speed full welding on all sides of the battery cover plate on the battery transplanting fixture at the welding station to connect the top cover to the battery housing, and the dust removal mechanism is used to remove dust during welding.

[0009] As a further improvement of the above-mentioned scheme of the utility model, the dust removal mechanism also includes a dust removal mounting frame, a dust removal lifting cylinder and a connecting plate. The dust removal mounting frame is installed on the mounting plate and is located at the welding station. The dust removal lifting cylinder is located above the conveying mechanism and is installed on the dust removal mounting frame. The connecting plate is fixed to the telescopic end of the dust removal lifting cylinder, and the annular dust cover is installed at the bottom of the connecting plate.

[0010] As a further improvement of the above-mentioned scheme of the utility model, the battery transplanting fixture includes a transplanting seat, a lifting plate, a fixed plate, a transplanting lifting cylinder and a clamping assembly, and the clamping assembly includes an end fixed limit plate, an end movable limit plate, a side fixed limit plate, a side movable limit plate, an end positioning cylinder and a side positioning cylinder; the transplanting lifting cylinder is installed on the transplanting seat, the lifting plate is located above the transplanting lifting cylinder and is connected to the telescopic end of the transplanting lifting cylinder, the fixed plate is located above the lifting plate and fixed on the transplanting seat, a battery positioning groove is opened through the fixed plate, the end fixed limit plate and the end movable limit plate are respectively located at both ends of the battery positioning groove and the end fixed limit plate is fixed on the fixed plate, the end positioning cylinder is installed on the fixed plate and is used to drive the end movable limit plate to move close to or away from the end fixed limit plate; the side fixed limit plate and the side movable limit plate are respectively located on both sides of the battery positioning groove and the side fixed limit plate is fixed on the fixed plate, and the side positioning cylinder is installed on the fixed plate and is used to drive the side movable limit plate to move close to or away from the side fixed limit plate.

[0011] As a further improvement of the above solution of the utility model, the driving mechanism includes a linear motor 1, and the transplanting seat is fixed on the mover of the linear motor 1.

[0012] As a further improvement of the above-mentioned scheme of the utility model, the upper protective cover mechanism includes a material box, an upper top cover mounting frame, a transverse movement module, a longitudinal movement module and a clamping claw cylinder; the material box is mounted on the mounting plate and stores the protective cover; the upper protective cover mounting frame is mounted on the mounting plate, the transverse movement module is located above the moving path of the battery transplanting fixture and is mounted on the upper top cover mounting frame, the longitudinal movement module is mounted on the slider of the transverse movement module and is driven by the transverse movement module to move back and forth in the horizontal direction; the clamping claw cylinder is mounted on the slider of the longitudinal movement module and is driven by the longitudinal movement module to move up and down in the vertical direction, and the two clamping claws of the clamping claw cylinder are both facing the mounting plate and the two clamping claws are connected to the clamping plate.

[0013] As a further improvement of the above-mentioned scheme of the utility model, the welding mechanism includes a welding mounting frame, a galvanometer welding head, a visual correction system and a linear motor 2. The welding mounting frame is installed on a mounting plate, the linear motor 2 is installed on the welding mounting frame, and the galvanometer welding head and the visual correction system are both installed on the mover of the linear motor 2.

[0014] As a further improvement of the above solution of the utility model, the welding mechanism also includes a protective air knife for blowing protective gas to the galvanometer welding head. The protective air knife is located on one side of the galvanometer welding head and is installed on the mover of the second linear motor.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a dust removal mechanism. During welding, the dust removal fan is started to suck away the dust generated by welding from the dust suction port. The annular dust removal hood is matched with the top cover, which can effectively suck away the welding slag and dust around the top cover, thereby improving the quality of the top cover weld.

[0017] The utility model also arranges a protective gas blowing mechanism at the bottom of the annular dust removal hood. Several wind knife assemblies of the protective gas blowing mechanism blow protective gas at the same time during welding, thereby blowing protective gas in an annular direction around the top cover. Protective gas can be blown to various parts of the weld, effectively preventing oxidation of the weld and further improving the quality of the weld.

[0018] The battery transplanting fixture, driving mechanism, upper protective cover mechanism, welding mechanism and dust removal mechanism of the battery top cover high-speed peripheral welding equipment of the utility model cooperate with each other, and are matched with the galvanometer peripheral welding, which effectively improves the welding work efficiency and welding quality of the battery top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a high-speed peripheral welding device for a battery top cover proposed in an embodiment of the utility model;

[0020] Figure 2 for Figure 1A partial structural diagram of

[0021] Figure 3 A schematic diagram of the structure of a battery transplanting fixture in a battery top cover high-speed peripheral welding device proposed in an embodiment of the utility model;

[0022] Figure 4 for Figure 3 A partial structural diagram of

[0023] Figure 5 A schematic diagram of the structure of an upper protective cover mechanism in a battery top cover high-speed peripheral welding device proposed in an embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the structure of a welding mechanism in a battery top cover high-speed peripheral welding device proposed in an embodiment of the utility model;

[0025] Figure 7 A schematic diagram of the structure of a dust removal mechanism and a protective gas blowing mechanism in a battery top cover high-speed peripheral welding device proposed in an embodiment of the utility model;

[0026] Figure 8 for Figure 7 A partial structural diagram of

[0027] Fig. 9 A cross-sectional view of an annular dust removal cover in a battery top cover high-speed peripheral welding device proposed in an embodiment of the utility model;

[0028] Fig.10 for Fig. 9 Enlarged schematic diagram at point A in the middle.

[0029] Figure numerals: 1. dust removal mechanism; 101. annular dust removal cover; 102. dust suction port; 103. elbow; 104. upper air knife; 105. lower air knife; 106. air pipe joint; 107. dust removal mounting frame; 108. dust removal lifting cylinder; 109. connecting plate; 2. mounting plate; 3. battery transplanting fixture; 301. transplanting seat; 302. lifting plate; 303. fixed plate; 304. transplanting lifting cylinder; 305. end fixed limit plate; 306. end movable limit plate; 307. side fixed limit plate; 308, side movable limit plate; 309, end positioning cylinder; 310, side positioning cylinder; 4, driving mechanism; 5, upper protective cover mechanism; 501, material box; 502, upper protective cover mounting frame; 503, transverse movement module; 504, longitudinal movement module; 505, clamping claw cylinder; 506, clamping plate; 6, welding mechanism; 601, welding mounting frame; 602, galvanometer welding head; 603, visual correction system; 604, linear motor 2; 605, protective wind knife; 7, battery; 8, top cover; 9, protective cover. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] Reference Figure 1 The present embodiment provides a battery top cover high-speed peripheral welding device, including a dust removal mechanism 1, and may also include a protective gas blowing mechanism, a mounting plate 2, a battery transplanting fixture 3, a driving mechanism 4, an upper top cover mechanism and a welding mechanism 6, wherein the battery transplanting fixture 3, the driving mechanism 4, the upper protective cover mechanism 5, the welding mechanism 6, and the dust removal mechanism 1 are all installed on the mounting plate 2.

[0033] The mounting plate 2 is arranged horizontally, and the entire battery top cover high-speed peripheral welding device can be installed at a designated position through the mounting plate 2. In this embodiment, the mounting plate 2 is a marble plate. The mounting plate 2 is provided with an upper protective cover station and a welding station.

[0034] In this embodiment, combined with Figure 2 , the number of the driving mechanisms 4 is two, and the two driving mechanisms 4 are installed side by side on the mounting plate 2. Of course, in other embodiments, the number of the driving mechanisms 4 can also be other larger numbers. In this embodiment, the driving mechanism 4 includes a linear motor 1, the stator of the linear motor 1 is installed on the lower surface of the mounting plate 2, and the mover of the linear motor 1 is installed on the upper surface of the mounting plate 2.

[0035] The battery transplanting fixture 3 is used to clamp the battery 8 to be welded. In this embodiment, there are two battery transplanting fixtures 3, and the two battery transplanting fixtures 3 are respectively installed on the movers of two linear motors 1. The linear motor 1 drives the corresponding battery transplanting fixture 3 to move back and forth between the upper protective cover station and the welding station. Of course, in other embodiments, the battery transplanting fixture 3 can also be a larger number, and multiple battery transplanting fixtures 3 need to be respectively set in a one-to-one correspondence with multiple driving mechanisms 4. In this embodiment, combined with Figure 3 , Figure 4The battery transplanting fixture 3 includes a transplanting seat 301, a lifting plate 302, a fixed plate 303, a transplanting lifting cylinder 304 and two clamping components. The transplanting seat 301 is fixed on the mover of the corresponding linear motor. The transplanting lifting cylinder 304 is installed on the transplanting seat 301, the lifting plate 302 is located above the transplanting lifting cylinder 304 and is connected to the telescopic end of the transplanting lifting cylinder 304. The telescopic end of the transplanting lifting cylinder 304 can drive the lifting plate 302 to rise and fall. The fixed plate 303 is located above the lifting plate 302 and fixed on the transplanting seat 301. Two battery positioning grooves are provided on the fixed plate 303. The size of the battery positioning groove is adapted to the size of the battery to ensure that batteries of various sizes can pass through the battery positioning groove. The two clamping assemblies are respectively arranged in one-to-one correspondence with the two battery positioning grooves, and the clamping assemblies include an end fixed limit plate 305, an end movable limit plate 306, a side fixed limit plate 307, a side movable limit plate 308, an end positioning cylinder 309 and a side positioning cylinder 310. The end fixed limit plate 305 and the end movable limit plate 306 are respectively located at the two ends of the corresponding battery positioning grooves, the end fixed limit plate 305 is fixed on the fixed plate 303 and the end movable limit plate 306 is slidably installed on the slide rail on the fixed plate 303, and the end positioning cylinder 309 is installed on the fixed plate 303 and is used to drive the end movable limit plate 306 to move closer to or away from the end fixed limit plate 305. The side fixed limit plate 307 and the side movable limit plate 308 are respectively located on both sides of the corresponding battery positioning groove. The side fixed limit plate 307 is fixed on the fixed plate 303 and the side movable limit plate 308 is slidably installed on the slide rail on the fixed plate 303. The side positioning cylinder 310 is installed on the fixed plate 303 and is used to drive the side movable limit plate 308 to move closer to or away from the side fixed limit plate 307. When clamping the battery, the transplanting lifting cylinder 304 drives the lifting plate 302 to move upward, and the two batteries are respectively passed through the two battery positioning grooves. After the bottom of the battery contacts the top of the lifting plate 302, the lifting cylinder drives the lifting plate 302 to move down to drive the battery down. The battery is confined in the battery positioning groove, and the fixed plate 303 protects the non-welding area of ​​the battery; then the two side positioning cylinders 310 are started to drive the two side movable limit plates 308 to move close to the battery, and the two sides of the battery are clamped by the side movable limit plates 308 and the side fixed limit plates 307 respectively; then the two end positioning cylinders 309 are started to drive the two end movable limit plates 306 to move close to the battery, and the two ends of the battery are clamped by the end movable limit plates 306 and the end fixed limit plates 305 respectively. In this embodiment, the end positioning cylinder 309 and the side positioning cylinder 310 can be controlled by an electrical proportional valve to adjust the pressure online to avoid excessive pressure and damage to the surface of the battery 8.

[0036] The upper protective cover mechanism 5 is arranged at the upper protective cover station, and is used to load the protective cover 9 onto the battery in the battery transplanting fixture 3 at the upper protective cover station. Figure 5, the upper cover mechanism includes a material box 501, an upper protective cover mounting frame 502, a transverse movement module 503, a longitudinal movement module 504 and a clamping claw cylinder 505. The material box 501 is mounted on the mounting plate 2 and stores a protective cover. The upper protective cover mounting frame 502 is mounted on the mounting plate 2, the transverse movement module 503 is located above the moving path of the battery transplanting fixture 3 and is mounted on the upper protective cover mounting frame 502, and the longitudinal movement module 504 is mounted on the slider of the transverse movement module 503 and is driven by the transverse movement module 503 to move back and forth in the horizontal direction. The clamping claw cylinder 505 is mounted on the slider of the longitudinal movement module 504 and is driven by the longitudinal movement module 504 to move up and down in the vertical direction. The two clamping claws of the clamping claw cylinder 505 are both facing the mounting plate 2 and the two clamping claws are connected to the clamping plate 506. A soft layer can be provided on the inner side of the clamping plate 506 to avoid damaging the protective cover during the clamping process. When loading the protective cover, the upper protective cover mechanism 5 of the present embodiment first drives the clamping cylinder 505 to the top of the material box 501 through the transverse movement module 503, and then the longitudinal movement module 504 drives the clamping cylinder 505 to descend and clamp the protective cover 9 in the material box 501. After the two clamping plates 506 clamp the protective cover, the longitudinal movement module 504 drives the clamping cylinder 505 to move upward; then the transverse movement module 503 drives the clamping cylinder 505 to move to the top of the battery transplanting fixture 3, and the longitudinal movement module 504 drives the clamping cylinder 505 to descend again, and the clamping cylinder 505 releases the protective cover 9, so that the protective cover 9 falls on the top cover 8 of the corresponding battery 7

[0037] The welding mechanism 6 is arranged at the welding station and is used to perform high-speed full-circle welding on the top cover 8 of the battery 7. Figure 6 The welding mechanism 6 includes a welding mounting frame 601, a galvanometer welding head 602, a visual correction system 603, a protective air knife 605, a protective gas source and a linear motor 604. The welding mounting frame 601 is mounted on the mounting plate 2. The linear motor 604 is mounted on the welding mounting frame 601. The galvanometer welding head 602, the visual correction system 603, and the protective air knife 605 are all mounted on the mover of the linear motor 604. The visual correction system 603 and the protective air knife 605 are located on both sides or on the same side of the galvanometer welding head 602. Before the galvanometer welding, the visual correction system 603 takes pictures around the battery top cover 8 to identify the welding track, and outputs a position compensation signal to the galvanometer correction welding head welding track. The galvanometer welding head 602 and the visual correction system 603 here all adopt the existing technology, and their working principles are known, so they will not be described here. The protective air knife 605 blows protective gas to the galvanometer welding head 602 to protect the galvanometer.

[0038] The dust removal mechanism 1 is arranged at the welding station to remove the dust generated during the welding process of the welding mechanism 6 to prevent the dust from affecting the quality of the weld. Figure 7-Figure 8The dust removal mechanism 1 includes a dust removal mounting frame 107, two dust removal lifting cylinders 108, two connecting plates 109, four annular dust hoods 101 and a dust removal fan. The dust removal mounting frame 107 is mounted on the mounting plate 2 and is located at the welding station. The two dust removal lifting cylinders 108 are both mounted on the dust removal mounting frame 107 and are respectively located above the movers of the two linear motors. The two dust removal lifting cylinders 108 are respectively arranged in a one-to-one correspondence with the two battery transplanting fixtures 3. The two connecting plates 109 are respectively fixed to the telescopic ends of the two dust removal lifting cylinders 108, and two side-by-side annular dust hoods 101 are installed at the bottom of each connecting plate 109. When the battery transplanting fixture 3 moves to the bottom of the corresponding dust removal lifting cylinder 108, the two clamping assemblies of the battery transplanting fixture 3 are respectively arranged in correspondence with the two annular dust hoods 101. The shape of the annular dust hood 101 matches the shape of the battery top cover 8, and is a square ring structure. The annular dust hood 101 has an annular dust chamber, and the inner circumference of the annular dust hood 101 is provided with a plurality of dust suction ports 102 connected to the annular dust chamber. The four sides of the annular dust hood 101 are provided with elbows 103 connected to the annular dust chamber, and the elbows 103 are connected to the dust removal fan through a hose. During welding, the dust removal lifting cylinder 108 drives the connecting plate 109 to move downward, so that the annular dust hood 101 corresponds to the protective cover on the battery transplanting fixture 3. During the welding process of the galvanometer welding head 602, the dust removal fan is started to suck away the dust through the dust suction port 102 to improve the quality of the weld.

[0039] Combination Fig. 9 , Fig.10 , each annular dust cover 101 is provided with a protective gas blowing mechanism at the bottom, which includes a plurality of air knife assemblies arranged circumferentially at the bottom of the corresponding annular dust cover 101, each air knife assembly includes an upper air knife 104, a lower air knife 105, and an air pipe joint 106 source, the upper air knife 104 and the lower air knife 105 are arranged up and down and are connected to the air pipe joint 106, the air outlets of the upper air knife 104 and the lower air knife 105 are both oriented toward the weld around the battery top cover, and the air pipe joint 106 is connected to the protective gas source through a hose. During welding, the upper air knife 104 and the lower air knife 105 blow out protective gas to prevent the weld from oxidation and improve the quality of the weld.

[0040] Next, the working principle of the battery top cover high-speed peripheral welding equipment of this embodiment is described:

[0041] The lifting cylinder drives the lifting plate 302 to move upward, and the two batteries 7 are respectively passed through the two battery positioning grooves. After the bottom of the battery contacts the top of the lifting plate 302, the lifting cylinder drives the lifting plate 302 to move down to drive the battery 7 to move down. The battery 7 is confined in the battery positioning groove, and the fixed plate 303 protects the non-welding area of ​​the battery; then the two side positioning cylinders 310 are started to drive the two side movable limit plates 308 to move close to the battery, and the two sides of the battery 7 are clamped by the side movable limit plates 308 and the side fixed limit plates 307 respectively; then the two end positioning cylinders 309 are started to drive the two end movable limit plates 306 to move close to the battery 7, and the two ends of the battery are clamped by the end movable limit plates 306 and the end fixed limit plates 305 respectively; then the linear motor 1 drives the battery transplanting fixture 3 to move to the upper cover station;

[0042] The clamping cylinder 505 is driven to the top of the material box 501 by the transverse movement module 503, and then the longitudinal movement module 504 drives the clamping cylinder 505 to descend to clamp the protective cover 9 in the material box 501. After the two clamping plates 506 clamp the protective cover 9, the longitudinal movement module 504 drives the clamping cylinder 505 to move upward; then the transverse movement module 503 drives the clamping cylinder 505 to move to the top of the battery transplanting fixture 3, and the longitudinal movement module 504 drives the clamping cylinder 505 to descend again, and the clamping cylinder 505 releases the protective cover, so that the protective cover 9 falls on the corresponding battery top cover 8, and the protective cover 9 covers the top cover 8 of the battery and exposes the welding area around the top cover 8 to prevent welding slag and dust from contaminating the non-welding area and pole of the top cover 8; then the linear motor 1 drives the battery transplanting fixture 3 to move to the welding station;

[0043] The dust removal lifting cylinder 108 drives the connecting plate 109 to move downward, so that the annular dust removal cover 101 surrounds the corresponding top cover, and the linear motor 2 604 drives the galvanometer welding head 602 to move above the top cover 8, and starts the dust removal fan. At the same time, the lower air knife 105, the upper air knife 104, and the protective air knife 605 blow out protective gas, and the visual correction system 603 takes pictures to compensate and locate the welding trajectory of the galvanometer welding head 602. The galvanometer welding head 602 performs high-speed full welding on the battery top cover 8 on all sides according to the compensated welding trajectory. After the welding of each battery is completed, The dust removal lifting cylinder 108 drives the annular dust removal hood 101 to move up and reset, the linear motor drives the battery transplanting fixture 3 to move to the upper protective cover position, the clamping claw cylinder 505 drives the two clamping plates 506 to remove the protective cover 9 and put it into the storage box 501, the battery transplanting fixture 3 moves to the unloading position, the end positioning cylinder 309 and the side positioning cylinder 310 respectively drive the end movable limit plate 306 and the side movable limit plate 308 to leave the battery 7 to release the battery 7 for unloading of the battery 7. After unloading is completed, the entire welding process of the battery 7 is completed.

[0044] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A battery top cover high-speed peripheral welding device, used for peripheral welding of battery top covers, characterized in that: It comprises a dust removal mechanism (1), the dust removal mechanism (1) comprising an annular dust removal cover (101) adapted to the battery top cover and a dust removal fan, the inner circumference of the annular dust removal cover (101) being provided with a plurality of dust suction ports (102) connected to the dust removal fan; The battery top cover high-speed peripheral welding equipment also includes a protective gas blowing mechanism, which includes a plurality of air knife assemblies, and the plurality of air knife assemblies are circumferentially arranged at the bottom of the annular dust removal cover (101); each air knife assembly includes an upper air knife (104), a lower air knife (105), an air pipe joint (106) and a protective gas source, the upper air knife (104) and the lower air knife (105) are arranged up and down and are both connected to the air pipe joint (106), the air outlets of the upper air knife (104) and the lower air knife (105) are both oriented toward the peripheral weld of the battery top cover, and the air pipe joint (106) is connected to the protective gas source through a hose; It also comprises a mounting plate (2), a battery transfer fixture (3) mounted on the mounting plate (2), a driving mechanism (4), an upper cover mechanism and a welding mechanism (6); an upper protective cover station and a welding station are arranged on the mounting plate (2); the battery transfer fixture (3) is used to clamp the battery and is driven by the driving mechanism (4) to move between the upper cover station and the welding station; the upper protective cover mechanism (5) is arranged at the upper protective cover station and is used to load the protective cover onto the battery on the battery transfer fixture (3) at the upper protective cover station; the welding mechanism (6) and the dust removal mechanism (1) are both arranged at the welding station; the welding mechanism (6) is used to perform high-speed full welding on all sides of the battery top cover on the battery transfer fixture (3) at the welding station so that the top cover is connected to the battery housing; the dust removal mechanism (1) is used to remove dust during welding; The battery transplanting fixture (3) comprises a transplanting seat (301), a lifting plate (302), a fixed plate (303), a transplanting lifting cylinder (304) and a clamping assembly, wherein the clamping assembly comprises an end fixed limit plate (305), an end movable limit plate (306), a side fixed limit plate (307), a side movable limit plate (308), an end positioning cylinder (309) and a side positioning cylinder (310); the transplanting lifting cylinder (304) is installed on the transplanting seat (301), the lifting plate (302) is located above the transplanting lifting cylinder (304) and is connected to the telescopic end of the transplanting lifting cylinder (304), the fixed plate (303) is located above the lifting plate (302) and is fixed on the transplanting seat (301), and the fixed plate (303) is installed on the end of the lifting plate (302). A battery positioning groove is provided through the battery positioning groove, an end fixed limit plate (305) and an end movable limit plate (306) are respectively located at two ends of the battery positioning groove, and the end fixed limit plate (305) is fixed on the fixed plate (303), and an end positioning cylinder (309) is installed on the fixed plate (303) and is used to drive the end movable limit plate (306) to move closer to or away from the end fixed limit plate (305); a side fixed limit plate (307) and a side movable limit plate (308) are respectively located on two sides of the battery positioning groove, and the side fixed limit plate (307) is fixed on the fixed plate (303), and a side positioning cylinder (310) is installed on the fixed plate (303) and is used to drive the side movable limit plate (308) to move closer to or away from the side fixed limit plate (307); The driving mechanism (4) comprises a linear motor 1, and the transplanting seat (301) is fixed on the mover of the linear motor 1; The upper protective cover mechanism (5) comprises a material box (501), an upper protective cover mounting frame (502), a transverse movement module (503), a longitudinal movement module (504) and a clamping claw cylinder (505); the material box (501) is mounted on the mounting plate (2) and stores the protective cover; the upper protective cover mounting frame (502) is mounted on the mounting plate (2); the transverse movement module (503) is located above the moving path of the battery transplanting fixture (3) and is mounted on the upper protective cover mounting frame (502); the longitudinal movement module (504) is mounted on a slider of the transverse movement module (503) and is driven by the transverse movement module (503) to move back and forth in the horizontal direction; the clamping claw cylinder (505) is mounted on a slider of the longitudinal movement module (504) and is driven by the longitudinal movement module (504) to move up and down in the vertical direction; the two clamping claws of the clamping claw cylinder (505) are both facing the mounting plate (2) and the two clamping claws are connected to a clamping plate (506).

2. The battery top cover high-speed peripheral welding equipment according to claim 1, characterized in that: The annular dust removal hood (101) is a square annular structure, an annular dust removal chamber is provided in the annular dust removal hood (101), and a plurality of dust suction ports (102) on the inner circumference of the annular dust removal hood (101) are all connected to the annular dust removal chamber, and curved pipes (103) connected to the annular dust removal chamber are arranged on the four sides of the annular dust removal hood (101), and the curved pipes (103) are connected to the dust removal fan through a hose.

3. The battery top cover high-speed peripheral welding equipment according to claim 2, characterized in that: The dust removal mechanism (1) further comprises a dust removal mounting frame (107), a dust removal lifting cylinder (108) and a connecting plate (109); the dust removal mounting frame (107) is mounted on the mounting plate (2) and located at the welding station; the dust removal lifting cylinder (108) is located above the conveying mechanism and mounted on the dust removal mounting frame (107); the connecting plate (109) is fixed to the telescopic end of the dust removal lifting cylinder (108); and the annular dust cover (101) is mounted at the bottom of the connecting plate (109).

4. The battery top cover high-speed peripheral welding equipment according to claim 1, characterized in that: The welding mechanism (6) comprises a welding mounting frame (601), a galvanometer welding head (602), a visual correction system (603) and a second linear motor (604); the welding mounting frame (601) is mounted on a mounting plate (2); the second linear motor (604) is mounted on the welding mounting frame (601); the galvanometer welding head (602) and the visual correction system (603) are both mounted on a mover of the second linear motor (604).

5. The battery top cover high-speed peripheral welding equipment according to claim 4, characterized in that: The welding mechanism (6) also includes a protective air knife (605) for blowing protective air to the galvanometer welding head (602) and a protective air source. The protective air knife (605) is located on one side of the galvanometer welding head (602) and is installed on the mover of the second linear motor (604). The protective air knife (605) is connected to the protective air source through a hose.

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