Full-automatic double-sided laser welding and code engraving equipment for button cell

Abstract

The full-automatic double-face laser welding and code carving equipment comprises an equipment body, a dust collector, a feeding conveying belt and a discharging conveying belt, the dust collector is arranged on one side of the equipment body, the left side and the right side of the equipment body are in butt joint with the feeding conveying belt and the discharging conveying belt correspondingly, and carriers are conveyed on the feeding conveying belt and the discharging conveying belt at equal intervals correspondingly; a carrier is arranged on the rack, the carrier bears an original button cell, welding equipment, marking equipment and a stacking mechanism are sequentially arranged on the rack from left to right, a main conveying line penetrating through the welding equipment, the marking equipment and the stacking mechanism is further arranged on the rack, and the main conveying line is in butt joint with a feeding conveying belt and a discharging conveying belt. The welding equipment, the marking equipment and the stacking mechanism are integrated on the equipment main body, the upper laser and the lower laser which are automatically lifted are arranged on the welding equipment, welding of the upper face and the lower face of the battery is completed at the same time, the size of the equipment is greatly reduced, the automation degree of the whole process is high, and the welding efficiency, the marking efficiency and the feeding and discharging efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of button battery welding equipment, in particular to a button battery fully automatic double-sided laser welding and coding equipment. Background Art

[0002] According to statistics, lithium battery cells have achieved remarkable development in the past few years. According to a report from the International Battery Manufacturers Association, the global market size of lithium battery cells is expected to reach approximately US$108 billion in 2025, mainly due to the rapid growth of lithium battery cells in the electric vehicle market and the popularity of rechargeable devices.

[0003] In addition, according to a report by a market research company, the global electric vehicle market is expected to grow at a compound annual growth rate of up to 22.2% by 2025, which will further drive the demand for lithium battery cells. Due to its high energy density, long life and environmental protection characteristics, lithium battery cells are becoming the preferred technology in the future energy storage and mobile device fields. Therefore, the development momentum of lithium battery cells is expected to continue to increase.

[0004] In the production process of existing button lithium batteries, the upper and lower nickel sheets need to be welded and marked. Generally, independent equipment is used to weld the upper and lower sides of the button batteries respectively, and independent marking and coding mechanisms are used, or a production line is used to sequentially set up a button battery upper welding station, a lower welding station, and a coding station. The above methods require more mechanisms, the overall size of the equipment is bulky, and the efficiency is also low.

[0005] Therefore, we propose a button battery fully automatic double-sided laser welding and coding equipment to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a button battery fully automatic double-sided laser welding and coding equipment to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a button battery fully automatic double-sided laser welding and coding equipment, comprising: an equipment body, a vacuum cleaner, a loading conveyor belt and a unloading conveyor belt, the vacuum cleaner is arranged on one side of the equipment body, the equipment body is respectively connected to the loading conveyor belt and the unloading conveyor belt on the left and right, the loading conveyor belt and the unloading conveyor belt are respectively equidistantly conveyed on the loading conveyor belt and the unloading conveyor belt, and the button battery components are carried on the carrier; The frame is provided with welding equipment, marking equipment and stacking mechanism from left to right in sequence, and the frame is also provided with a main conveying line passing through the above-mentioned mechanisms, and the main conveying line is connected to the loading conveying belt and the unloading conveying belt; The main conveying line is provided with a dust cover at the welding equipment and the marking equipment, the dust cover is connected to a dust collector, and the main conveying line is also provided with a lifting and positioning mechanism at the welding equipment, the lifting and positioning mechanism positions the carrier; The welding equipment is provided with welding lasers in two directions, the two lasers are respectively located on the upper and lower sides of the main conveying line; The stacking mechanism comprises a slide rail truss, which is arranged across the main conveyor line, on which a slide seat is slidably arranged, and a telescopic cylinder is connected between the slide seat and the slide rail truss; The slide seat is provided with a first lifting cylinder, the lower part of the slide seat is slidably connected to the lifting plate through a guide slide rod, the telescopic end of the first lifting cylinder is fixedly connected to the lifting plate, downward suction cups are installed at the four corners of the lifting plate, and the suction cups are connected to the negative pressure mechanism; The stacking mechanism further comprises a rodless cylinder assembly, on which a carrier plate is arranged; The carrier comprises a base and a transparent cover, and the transparent cover is movably pressed on the base.

[0008] Preferably, the equipment body includes a frame and a protective cabinet thereon, and an industrial control system is installed on the side of the protective cabinet.

[0009] Preferably, the dust suction cover comprises a third dust suction cover, a second dust suction cover and a first dust suction cover, the first dust suction cover is installed on the upper surface of the main conveyor line, and the lifting and positioning mechanism is arranged on the lower surface of the main conveyor line.

[0010] Preferably, the welding equipment comprises a vertical first servo lifting module, on which a first laser and a second laser are arranged, and the first laser and the second laser servo-slide on the first servo lifting module.

[0011] Preferably, the lifting and positioning mechanism includes a fixed plate, which is fixedly installed on the lower surface of the main conveying line. The fixed plate is slidably connected to the support seat through a guide slide rod. A second lifting cylinder for driving the support seat to rise and fall is arranged on the fixed plate. Four first positioning pins are arranged on the upper surface of the support seat, and a hollow design is formed between the support seat and the fixed plate.

[0012] Preferably, a third dust suction cover is fixedly installed on the lower surface of the fixing plate, the first dust suction cover and the third dust suction cover are connected to the vacuum cleaner by pipelines, and holes for laser passing are provided on the first dust suction cover and the third dust suction cover.

[0013] Preferably, the marking device comprises a second servo lifting module arranged vertically, a third laser is slidably arranged on the second servo lifting module, and the third laser is driven to rise and fall by the second servo lifting module.

[0014] Preferably, the main conveyor line is provided with a second dust cover at the marking device, the second dust cover is fixedly mounted on the upper surface of the main conveyor line, the second dust cover pipeline is connected to the vacuum cleaner, and the second dust cover has the same structure as the first dust cover.

[0015] Preferably, the main conveyor line includes a bracket, conveyor rollers are installed at both ends of the bracket, two symmetrical conveyor belts are mounted on the conveyor rollers, there is a gap between the conveyor belts, the carrier is arranged on the conveyor belts, and a servo power device is installed on the lower surface of one end of the bracket, and the servo power device drives the connected conveyor rollers.

[0016] Preferably, positioning holes are provided at two diagonal positions of the base, and battery holes are provided in an array on the transparent cover; The bottom bracket is provided with welding through holes in an array, and the welding through holes correspond to the battery holes one by one; Positioning bosses are provided at the diagonal positions on the upper surface of the base, and the positioning bosses are inserted into the positioning holes; The bottom surface of the base is provided with positioning grooves at four corners, and the positioning grooves are plugged with the first positioning pins; Magnets are symmetrically arranged at the edge of the upper surface of the base, and an iron sheet is arranged at a corresponding position on the lower surface of the transparent cover, and the magnets are connected with the iron sheet by magnetic attraction.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By integrating welding equipment, marking equipment and stacking mechanism into one equipment body, and setting two automatically lifting lasers on the welding equipment, the upper and lower sides of the battery can be welded at the same time, which greatly reduces the size of the equipment, achieves a high degree of automation throughout the process, and improves the efficiency of welding, marking, and loading and unloading; 2. The carrier for button batteries is divided into two movable parts, upper and lower. With the help of the stacking mechanism, the batteries after welding and marking can be directly stacked in the form of trays, saving manual unloading and further improving unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the device body in the present invention; Figure 3 It is a structural schematic diagram of the welding equipment, main conveying line, marking equipment and stacking mechanism in the present invention; Figure 4 For the present invention Figure 3 's side elevation view; Figure 5 It is a structural schematic diagram of the welding equipment in the present invention; Figure 6 It is a structural schematic diagram of the marking device in the present invention; Figure 7It is a structural schematic diagram of the stacking mechanism in the present invention; Figure 8 It is a partial enlarged view of the lifting and positioning mechanism and the main conveying line in the present invention; Fig. 9 It is a structural schematic diagram of the lifting and positioning mechanism in the present invention; Fig.10 It is a structural schematic diagram of the carrier in the present invention; Fig.11 For the present invention Fig.10 Side view of .

[0019] In the figure: 1. Equipment body; 11. Frame; 12. Welding equipment; 121. First servo lifting module; 122. First laser; 123. Second laser; 13. Main conveyor line; 131. Bracket; 132. Servo power device; 133. Conveyor belt; 14. Marking equipment; 141. Second servo lifting module; 142. Third laser; 15. Palletizing mechanism; 151. Rodless cylinder assembly; 152. Carrier; 153. Slide rail truss; 154. Slide seat; 155. First lifting cylinder; 156. Lifting Plate; 157, suction cup; 16, first dust cover; 17, second dust cover; 18, lifting and positioning mechanism; 181, fixing plate; 182, second lifting cylinder; 183, support seat; 184, first positioning pin; 185, third dust cover; 2, vacuum cleaner; 3, loading conveyor belt; 4, unloading conveyor belt; 5, carrier; 51, bottom support; 511, battery hole; 512, positioning hole; 513, iron sheet; 52, transparent cover; 521, welding through hole; 522, positioning boss; 523, magnet; 524, positioning groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0021] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0022] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the examples of various specific processes and materials provided by the present invention, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0027] See also Figure 1-Figure 11 In order to solve the problems existing in the prior art, the present invention provides the following technical solutions: Embodiment 1: A button battery fully automatic double-sided laser welding and coding device, comprising: a device body 1, a vacuum cleaner 2, a loading conveyor belt 3 and a unloading conveyor belt 4, wherein the vacuum cleaner 2 is arranged on one side of the device body 1, and the device body 1 is connected to the loading conveyor belt 3 and the unloading conveyor belt 4 on the left and right sides respectively; The loading conveyor belt 3 and the unloading conveyor belt 4 respectively convey carriers 5 at equal intervals. The carriers 5 carry button battery components, which are sent into the equipment main body 1 through the loading conveyor belt 3 for processing and then sent out through the unloading conveyor belt 4.

[0028] The device body 1 includes a frame 11 and a protective cabinet thereon. An industrial control system is installed on the side of the protective cabinet. The industrial control system is used to control the entire device and display various parameters.

[0029] The frame 11 is provided with a welding device 12, a marking device 14 and a stacking mechanism 15 from left to right. The frame 11 is also provided with a main conveying line 13 passing through the above-mentioned mechanisms, and the main conveying line 13 is connected to the loading conveying belt 3 and the unloading conveying belt 4. The main conveyor line 13 receives the carrier 5 carrying the product, sends it to the welding equipment 12 for welding in the up and down directions, then enters the marking equipment 14 for marking, and then enters the stacking mechanism 15 to take away and stack the welded products. The carrier 5 is sent out by the unloading conveyor belt 4, and the carrier 5 is moved to the loading conveyor belt 3 by manual or mechanical equipment for recycling.

[0030] The main conveying line 13 is provided with a first dust cover 16 and a lifting and positioning mechanism 18 at the welding equipment 12. The first dust cover 16 is installed on the upper surface of the main conveying line 13, and the lifting and positioning mechanism 18 is provided on the lower surface of the main conveying line 13. The welding device 12 includes a vertical first servo lifting module 121, on which a first laser 122 and a second laser 123 are arranged. The first laser 122 and the second laser 123 servo-slide on the first servo lifting module 121, approach or move away from the carrier 5, and adjust a preset height. When the carrier 5 carrying the product arrives at the welding device 12, the first laser 122 and the second laser 123 perform laser welding on the upper and lower surfaces of the product respectively. The lifting and positioning mechanism 18 includes a fixed plate 181, which is fixedly mounted on the lower surface of the main conveyor line 13. The upper portion of the fixed plate 181 is slidably connected to a support seat 183 via a guide slide bar. A second lifting cylinder 182 for driving the support seat 183 to rise and fall is provided on the fixed plate 181. Four first positioning pins 184 are provided on the upper surface of the support seat 183. When the carrier 5 arrives directly above the lifting and positioning mechanism 18, the second lifting cylinder 182 drives the support seat 183 to rise, so that the first positioning pins 184 position the carrier 5. The support seat 183 and the fixing plate 181 are hollowed out in the middle, so that the laser light emitted by the second laser 123 passes through the support seat 183 and the fixing plate 181 to act on the carrier 5 above them. After the welding is completed, the first positioning pin 184 retreats, and the carrier 5 continues to move to the next station. The third dust suction cover 185 is fixedly installed on the lower surface of the fixing plate 181, and the first dust suction cover 16 and the third dust suction cover 185 are connected to the dust suction machine 2 through pipelines to suck away foreign matter generated by welding to prevent contamination of the equipment body 1; The first dust suction cover 16 and the third dust suction cover 185 are provided with holes through which the laser passes.

[0031] The marking device 14 includes a second servo lifting module 141 arranged vertically, and a third laser 142 is slidably arranged on the second servo lifting module 141. The third laser 142 is driven by the second servo lifting module 141 to move closer to or away from the carrier 5 to adjust the preset height. When the carrier 5 carrying the product arrives at the marking device 14, the third laser 142 performs laser coding and marking on the product. The main conveying line 13 is provided with a second dust suction cover 17 at the marking device 14. The second dust suction cover 17 is fixedly installed on the upper surface of the main conveying line 13. The second dust suction cover 17 is connected to the dust collector 2 through a pipeline. The second dust suction cover 17 has the same structure and function as the first dust suction cover 16. The first laser 122, the second laser 123 and the third laser 142 are all provided with telescopic components to adjust the forward and backward movement of the lasers.

[0032] Embodiment 2: In order to solve the problem of low efficiency of manual unloading of batteries after welding and marking, the present invention provides the following technical solutions, please refer to Figure 3 , Figure 4 and Figure 7The stacking mechanism 15 includes a slide rail truss 153, which is arranged across the main conveying line 13. A slide seat 154 is slidably arranged on the slide rail truss 153. A telescopic cylinder is connected between the slide seat 154 and the slide rail truss 153 to drive the slide seat 154 to enter and exit the main conveying line 13 along the slide rail truss 153; A first lifting cylinder 155 is provided on the slide 154. The lower part of the slide 154 is slidably connected to a lifting plate 156 through a guide slide rod. The telescopic end of the first lifting cylinder 155 is fixedly connected to the lifting plate 156 to drive the lifting plate 156 to move up and down. Downward suction cups 157 are installed at the four corners of the lifting plate 156. The suction cups 157 are connected to a negative pressure mechanism. When the carrier 5 carrying the product moves to the stacking mechanism 15, the suction cups 157 are driven down by the lifting plate 156, suck the product, and then rise up, and are pulled out of the main conveying line 13 by the slide rail truss 153; The stacking mechanism 15 also includes a rodless cylinder assembly 151, on which a carrier 152 is arranged. When the suction cup 157 sucks the product and moves it out of the main conveyor line 13, it reaches above the carrier 152, and the suction cup 157 descends to place the product on the carrier 152, and reciprocates to suck and place the product to achieve product stacking. When a certain number of products are stacked, the rodless cylinder assembly 151 sends the equipment body 1 out. After the stacked products are manually removed, the carrier 152 returns to the initial position to continue the next round of stacking.

[0033] Embodiment 3: In order to solve the problem of automated coordination between the conveyor line and welding equipment, marking equipment and palletizing mechanism and further improve efficiency, the present invention provides the following technical solutions, please refer to Figure 4 The main conveyor line 13 includes a bracket 131, and conveyor rollers are installed at both ends of the bracket 131. Two symmetrical conveyor belts 133 are sleeved on the conveyor rollers. There is a gap between the conveyor belts 133 to facilitate the passage of the lifting and positioning mechanism 18. The carrier 5 is set on the conveyor belt 133; A servo power device 132 is installed on the lower surface of one end of the bracket 131 , and the servo power device 132 drives the connected conveying roller to realize the servo movement of the conveying belt 133 .

[0034] Embodiment 4: In order to make battery loading more stable and fast, and to better cooperate with welding equipment, marking equipment and stacking mechanism, so that batteries can enter each station more accurately, the present invention provides the following technical solutions, please refer to Fig.10 and Fig.11 The carrier 5 comprises a base 51 and a transparent cover 52. The transparent cover 52 is movably pressed on the base 51. Positioning holes 512 are provided at two diagonal portions of the base 51. Battery holes 511 are provided in an array on the transparent cover 52 for placing button batteries. The bottom bracket 51 is provided with welding through holes 521 in an array, and the welding through holes 521 correspond to the battery holes 511 one by one, and are used for the second laser 123 to weld the battery from the bottom; A positioning boss 522 is provided at the diagonal position of the upper surface of the bottom bracket 51, and the positioning boss 522 is inserted into the positioning hole 512 to realize the covering and positioning of the bottom bracket 51 and the transparent cover plate 52, so that the battery hole 511 and the welding through hole 521 are quickly aligned; Positioning grooves 524 are provided at the four corners of the lower surface of the base 51, and the positioning grooves 524 are plugged into the first positioning pins 184, so that the carrier 5 can be quickly positioned when it reaches the welding equipment 12; Magnets 513 are symmetrically arranged at the edge of the upper surface of the base 51, and an iron sheet 523 is arranged at the corresponding position of the lower surface of the transparent cover 52. The magnets 513 and the iron sheet 523 are magnetically connected to enhance the firmness of the base 51 and the transparent cover 52 after pressing, and also facilitate the rapid fitting of the base 51 and the transparent cover 52.

[0035] Working principle: put the battery into the battery hole 511, then put the transparent cover plate 52 on the bottom bracket 51, and then put the whole carrier 5 on the feeding conveyor belt 3, which is sent to the main conveyor line 13. The main conveyor line 13 sequentially transports the carrier 5 carrying the battery through the welding device 12, the marking device 14 and the stacking mechanism 15; During this process, the upper and lower lasers of the welding device 12 weld the upper and lower surfaces of the battery, and then the marking device 14 laser marks the battery and then sends it to the stacking mechanism 15; The stacking mechanism 15 absorbs the transparent cover plate 52 after marking and transfers it to the carrier plate 152 for stacking, and the bottom support 51 is further transferred to the unloading conveyor belt 4 for unloading; The stacked transparent cover plates 52 carrying batteries are sent to the manual unloading station by the rodless cylinder assembly 151 for unloading, and then the empty transparent cover plates 52 and the bottom bracket 51 with the unloading conveyor belt 4 removed are assembled to carry out the next round of welding work.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A button battery fully automatic double-sided laser welding and coding equipment, comprising: The device body (1), a vacuum cleaner (2), a loading conveyor belt (3) and a unloading conveyor belt (4), wherein the vacuum cleaner (2) is arranged on one side of the device body (1), and the device body (1) is connected to the loading conveyor belt (3) and the unloading conveyor belt (4) on the left and right sides respectively, and the loading conveyor belt (3) and the unloading conveyor belt (4) respectively convey carriers (5) at equal distances, and the carriers (5) carry button battery components; The invention is characterized in that: a welding device (12), a marking device (14) and a stacking mechanism (15) are installed on the frame (11) from left to right in sequence, and a main conveying line (13) passing through the above-mentioned mechanisms is also installed on the frame (11), and the main conveying line (13) is connected to a loading conveyor belt (3) and a unloading conveyor belt (4); The main conveyor line (13) is provided with a dust cover at the welding equipment (12) and the marking equipment (14), and the dust cover is connected to the dust collector (2). The main conveyor line (13) is also provided with a lifting and positioning mechanism (18) at the welding equipment (12), and the lifting and positioning mechanism (18) positions the carrier (5); The welding equipment (12) is provided with welding lasers in two directions, one in the upper direction and the other in the lower direction. The two lasers are respectively located on the upper and lower sides of the main conveying line (13); The stacking mechanism (15) comprises a slide rail truss (153), the slide rail truss (153) is arranged across the main conveying line (13), a slide seat (154) is slidably arranged on the slide rail truss (153), and a telescopic cylinder is connected between the slide seat (154) and the slide rail truss (153); The slide seat (154) is provided with a first lifting cylinder (155), the lower part of the slide seat (154) is slidably connected to a lifting plate (156) via a guide slide rod, the telescopic end of the first lifting cylinder (155) is fixedly connected to the lifting plate (156), downward suction cups (157) are installed at the four corners of the lifting plate (156), and the suction cups (157) are connected to a negative pressure mechanism; The stacking mechanism (15) further comprises a rodless cylinder assembly (151), and a carrier plate (152) is arranged on the rodless cylinder assembly (151); The carrier (5) comprises a base (51) and a transparent cover plate (52), wherein the transparent cover plate (52) is movably pressed on the base (51).

2. According to claim 1, the button battery fully automatic double-sided laser welding and coding equipment is characterized in that: The equipment body (1) comprises a frame (11) and a protective cabinet thereon, and an industrial control system is installed on the side of the protective cabinet.

3. The button battery fully automatic double-sided laser welding and coding equipment according to claim 1 is characterized in that: The dust suction cover comprises a third dust suction cover (185), a second dust suction cover (17) and a first dust suction cover (16); the first dust suction cover (16) is installed on the upper surface of the main conveying line (13); and the lifting and positioning mechanism (18) is arranged on the lower surface of the main conveying line (13).

4. The button battery fully automatic double-sided laser welding and coding equipment according to claim 1 is characterized in that: The welding device (12) comprises a vertical first servo lifting module (121), on which a first laser (122) and a second laser (123) are arranged, and the first laser (122) and the second laser (123) servo-slide on the first servo lifting module (121).

5. The button battery fully automatic double-sided laser welding and coding equipment according to claim 3 is characterized in that: The lifting and positioning mechanism (18) comprises a fixed plate (181), the fixed plate (181) is fixedly mounted on the lower surface of the main conveyor line (13), the upper portion of the fixed plate (181) is slidably connected to a support seat (183) via a guide slide rod, a second lifting cylinder (182) is provided on the fixed plate (181) for driving the support seat (183) to lift and lower, four first positioning pins (184) are provided on the upper surface of the support seat (183), and a hollow design is provided between the support seat (183) and the fixed plate (181).

6. The button battery fully automatic double-sided laser welding and coding equipment according to claim 5, characterized in that: The third dust suction cover (185) is fixedly mounted on the lower surface of the fixing plate (181); the first dust suction cover (16) and the third dust suction cover (185) are connected to the vacuum cleaner (2) through pipes; and holes for laser passage are provided on the first dust suction cover (16) and the third dust suction cover (185).

7. The button battery fully automatic double-sided laser welding and coding equipment according to claim 1, characterized in that: The marking device (14) comprises a second servo lifting module (141) arranged vertically, a third laser (142) being slidably arranged on the second servo lifting module (141), and the third laser (142) being driven to rise and fall by the second servo lifting module (141).

8. The button battery fully automatic double-sided laser welding and coding equipment according to claim 3 is characterized in that: The second dust suction cover (17) is fixedly mounted on the upper surface of the main conveying line (13); the second dust suction cover (17) is connected to the dust suction machine (2) through a pipeline; the second dust suction cover (17) has the same structure as the first dust suction cover (16).

9. The button battery fully automatic double-sided laser welding and coding equipment according to claim 8, characterized in that: The main conveyor line (13) comprises a bracket (131), conveyor rollers are installed at both ends of the bracket (131), two symmetrical conveyor belts (133) are sleeved on the conveyor rollers, and a gap is provided between the conveyor belts (133). The carrier (5) is arranged on the conveyor belts (133), and a servo power device (132) is installed on the lower surface of one end of the bracket (131), and the servo power device (132) drives the connected conveyor rollers.

10. The button battery fully automatic double-sided laser welding and coding equipment according to claim 1, characterized in that: Positioning holes (512) are provided at two diagonal positions of the base (51), and battery holes (511) are provided in an array on the transparent cover (52); The base (51) is provided with welding through holes (521) in an array, and the welding through holes (521) correspond to the battery holes (511) one by one; Positioning bosses (522) are provided at diagonal positions on the upper surface of the base (51), and the positioning bosses (522) are plugged into the positioning holes (512); Positioning grooves (524) are provided at four corners of the lower surface of the base (51), and the positioning grooves (524) are plugged into the first positioning pins (184); Magnets (513) are symmetrically arranged at the edge of the upper surface of the base (51), and an iron sheet (523) is arranged at a corresponding position on the lower surface of the transparent cover plate (52), and the magnets (513) and the iron sheet (523) are magnetically connected.

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