A welding device and method based on lithium battery electrode post processing

Abstract

The application discloses a kind of welding device and method based on lithium battery electrode post processing, it is related to the technical field of lithium battery electrode post processing.The present application includes lithium battery current collector and control console arranged on support seat, and two metal seats for matching electrode post welding are arranged on the current collector, further comprising: welding position unit, including position component one and welding assembly;Center positioning unit, including placement assembly and position component two;Hydraulic control lever is used to adjust the distance between welding position unit and center positioning unit, to realize the efficient welding of electrode post.The advantages are that: when welding, the relative position between electrode post and current collector metal seat can be flexibly adjusted, so that the center line of electrode post and metal seat is aligned, the accuracy of the welding position between electrode post and metal seat is ensured, and the overall welding between two electrode posts can be carried out simultaneously by adopting the surrounding welding mode, the welding efficiency is higher, and the welding is more firm.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery electrode post processing, and in particular to a welding device and method based on lithium battery electrode post processing. BACKGROUND

[0002] The lithium battery electrode post is a key component for connecting the internal electrochemical reaction of the battery and the external circuit, and is usually made of copper or aluminum material. During processing, the lithium battery electrode post is usually welded on the metal seat of the lithium battery current collector plate by using a welding device, so as to fix the electrode post on the current collector plate and realize the conduction of the internal current of the lithium battery.

[0003] The existing welding device adopts various ways to realize the welding of the electrode post. For example, a welding device for connecting a matrix arrangement type electrode post and a metal seat and a use method are disclosed in CN118002884A, which comprises a metal frame and an eccentric electrode post. The eccentric electrode post comprises a base plate and a base column fixed on the top of the base plate. A plurality of metal bottom plates are fixed on the metal frame, the base plate is placed on the metal bottom plate, a top plate is arranged above the metal frame, and a plurality of first cavities and second cavities arranged vertically are arranged in the top plate.

[0004] When the existing welding device is used to weld the electrode post and the metal seat on the current collector plate, the electrode post is usually placed directly on the metal seat, and a welding gun is used for direct welding. This welding method cannot ensure the accuracy of the placement position of the electrode post, that is, the electrode post and the metal seat cannot be accurately placed at the center position of the metal seat. Deviation in the installation position of the electrode post will affect the subsequent connection and current conduction of the electrode post. For example, the above-mentioned prior art directly places the electrode post on the metal bottom plate without accurately positioning the electrode post at the center line, which easily leads to deviation in the installation position of the electrode post. In addition, the device uses a single-point welding method of welding wire, which cannot ensure the comprehensive welding of the connection part of the electrode post and the metal seat. The welding is not firm enough and the welding efficiency is relatively low, which has certain limitations.

[0005] Therefore, it is urgent to design a welding device and method based on lithium battery electrode post processing to solve the above problems. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a welding device and method based on lithium battery electrode post processing, which solves the problems raised in the background art.

[0007] To achieve the above purpose, the present application is implemented by the following technical scheme: a welding device based on lithium battery electrode post processing, comprising a current collector plate and a control console arranged on a support seat, and two metal seats for cooperating with the electrode post welding are arranged on the current collector plate, further comprising:

[0008] The welding positioning unit comprises a positioning assembly I and a welding assembly, wherein the positioning assembly I is provided with a sleeving mechanism, and the sleeving mechanism is provided with two sleeving covers matched with corresponding electrode columns; the welding assembly is provided with a driving mechanism and two welding guns, and the driving mechanism drives the welding guns to rotate to realize the surrounding welding of the electrode columns.

[0009] The center positioning unit is arranged on the support seat and comprises a placing assembly and a positioning assembly II, wherein the placing assembly is used for realizing the positioning and placing of the current collecting plate; the center positioning mechanism is arranged between the positioning assembly II and the sleeving cover, and is used for realizing the center line positioning of the metal seat and the electrode column to ensure the accuracy of the welding position.

[0010] The hydraulic control rod is arranged in the control console and is used for adjusting the distance between the welding positioning unit and the center positioning unit to realize the efficient welding of the electrode column.

[0011] Preferably, the support seat is provided with a bearing platform, and the center positioning unit is arranged on the bearing platform.

[0012] The control console is provided with a control panel, which is used for controlling the opening and closing and running state of the welding positioning unit, the center positioning unit and the hydraulic control rod to realize the automatic welding of the electrode column.

[0013] Preferably, the positioning assembly I comprises a lifting welding table fixedly installed on the driving end of the hydraulic control rod, the lifting welding table is fixedly installed with a hydraulic lifting rod, and the driving end of the hydraulic lifting rod is fixedly installed with a sleeving cover; the sleeving cover is fixedly installed with a linkage frame, and the linkage frame is fixedly installed with another sleeving cover; the two sleeving covers are both provided with a sleeving mechanism.

[0014] Preferably, the sleeving mechanism comprises an elastic connecting rod fixedly installed in the sleeving cover, and the lower end of the elastic connecting rod is fixedly installed with a positioning sleeve; the positioning sleeve is fixedly installed with a rubber embedded seat used for extruding the positioning electrode column.

[0015] Preferably, the welding assembly comprises two fixed rings fixedly installed outside the two sleeving covers, and the two fixed rings are both rotatably installed with a driven gear ring; the lower part of the two driven gear rings is both obliquely provided with a welding gun used for welding the electrode column.

[0016] Preferably, the driving mechanism comprises a servo motor fixedly installed in the lifting welding table, and the driving end of the servo motor is fixedly installed with a driving roller; the lifting welding table is rotatably installed with a driven roller, and the driving roller and the driven roller are sleeved with a transmission belt; the driving roller and the driven roller are both fixedly installed with a driving gear column, and the two driving gear columns are respectively engaged with the two driven gear rings.

[0017] Preferably, the placing assembly comprises a positioning table mounted on the bearing platform in a clamping manner, two limiting sliding rods are fixedly installed in the positioning table, and a placing box is fixedly installed on the two limiting sliding rods in a cooperative manner, a positioning plate is fixedly installed in the placing box, and a plurality of positioning grooves for clamping the current collecting plate are formed in the positioning plate.

[0018] Preferably, the second position adjusting assembly comprises a threaded adjusting rod installed in the positioning table in a threaded manner, and the threaded adjusting rod is rotatably connected to the placing box, and two limiting telescopic rods are fixedly installed between the placing box and the positioning table.

[0019] Preferably, the center positioning mechanism comprises a center control box installed in the positioning table in a sliding manner, a lower center seat matched with the center control box is fixedly installed on the outer side of the placing box, an upper center seat matched with the center control box is fixedly installed on the outer side of the cover, and a vertical sliding groove matched with the upper center seat is formed in the lifting welding table.

[0020] The upper trigger button and the lower trigger button are fixedly installed in the center control box, and the upper trigger button and the lower trigger button are matched with the upper center seat and the lower center seat respectively, the sensing lamp is arranged on the support seat and cooperates with the upper trigger button and the lower trigger button, and the sensing lamp is lighted when the upper trigger button and the lower trigger button are triggered.

[0021] A welding method based on lithium battery electrode column processing, for the welding device of the lithium battery electrode column processing, comprising the following steps:

[0022] S1, first, place the current collecting plate in the placing assembly in the center positioning unit and position it, and then place the two electrode columns on the two metal seats on the current collecting plate respectively;

[0023] S2, start the hydraulic control rod to control the welding position adjusting unit to descend, so that the sleeving mechanism in the first position adjusting assembly sleeves and positions the two electrode columns;

[0024] S3, adjust the horizontal position of the current collecting plate and the metal seat thereon through the second position adjusting assembly, and slide the center control box through the cooperation of the center positioning mechanism, so that the upper center seat is clamped into the center control box, and then the lower center seat is clamped into the center control box through the movement of the placing box, to complete the real-time determination of the center line position of the current collecting plate in the placing box, until the metal seat and the electrode column are on the same center line, to complete the center adjustment of the welding position;

[0025] S4, start the two welding guns in the welding assembly to simultaneously perform the surrounding comprehensive welding between the two electrode columns and the corresponding metal seats.

[0026] The application provides a welding device and method based on lithium battery electrode column processing.

[0027] 1. When welding the electrode column, this welding device can directly achieve the centerline placement of the current collector through the central positioning plate, and the relative position of the electrode column and the current collector metal seat can be adjusted by cooperating with the second adjustment component and the central positioning mechanism, so that the centerline of the electrode column and the metal seat are kept aligned, thereby ensuring the accuracy of the electrode column welding position.

[0028] 2. When welding electrode columns, this welding device can cooperate with current collecting plates of various sizes through the multi-level positioning grooves on the positioning plate, and make the current collecting plates of different sizes in the center line position during installation. It can not only realize the welding of various types of current collecting plates and electrode columns, but also ensure that metal seats of different sizes and electrode columns are in the accurate welding position.

[0029] 3. When welding electrode columns, this welding device can simultaneously drive two welding guns to rotate synchronously through the cooperation of the servo motor and the drive mechanism, thereby completing the welding work of two electrode columns at the same time and realizing comprehensive surrounding welding, which makes the welding more comprehensive and the welding firmer.

[0030] To sum up, the present invention can flexibly adjust the relative position between the electrode column and the collector plate metal seat during welding, so that the center line between the electrode column and the metal seat is kept aligned, ensuring the accuracy of the welding position between the electrode column and the metal seat. At the same time, the circumferential welding method is adopted to simultaneously perform comprehensive welding between the two electrode columns, which has higher welding efficiency and more firm welding.

[0031] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0033] Figure 1 This is a structural schematic diagram of a welding device based on lithium battery electrode column processing proposed by the present invention;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure after rotating a certain angle;

[0035] Figure 3 for Figure 2 Schematic diagram of the structure of the middle support seat and hydraulic control lever;

[0036] Figure 4 for Figure 3Structure schematic diagram of center positioning table and lifting welding table;

[0037] Figure 5 For Figure 4 Structure schematic diagram of center positioning table and lifting welding table;

[0038] Figure 6 For Figure 4 Structure schematic diagram of center positioning table and lifting welding table;

[0039] Figure 7 For Figure 6 Structure schematic diagram of center positioning table and lifting welding table;

[0040] Figure 8 For Figure 7 Structure schematic diagram of center positioning table and lifting welding table;

[0041] Figure 9 For Figure 4 Structure schematic diagram of center positioning table and lifting welding table;

[0042] Figure 10 For Figure 9 Structure schematic diagram of center positioning table and lifting welding table;

[0043] Figure 11 For Figure 10 Structure schematic diagram of center positioning table and lifting welding table;

[0044] Figure 12 For Figure 10 Structure schematic diagram of center positioning table and lifting welding table;

[0045] Figure 13 For Figure 12 Structure schematic diagram of center positioning table and lifting welding table;

[0046] Figure 14 Structure schematic diagram of center positioning table and lifting welding table;

[0047] Figure 15 For Figure 14 Structure schematic diagram of center positioning table and lifting welding table.

[0048] In the figure: 1 support base, 2 control console, 3 control panel, 4 hydraulic control lever, 5 lifting welding table, 6 positioning table, 7 bearing platform, 8 threaded adjustment lever, 9 center control box, 10 placement box, 11 electrode column, 12 servo motor, 13 hydraulic lifting rod, 14 sleeve cover, 15 limit sliding rod, 16 collecting plate, 17 metal seat, 18 positioning plate, 19 multi-stage positioning groove, 20 lower center seat, 21 upper center seat, 22 linkage frame, 23 transmission belt, 24 driven roller, 25 driving gear column, 26 driven gear ring, 27 welding gun, 28 driving roller, 29 elastic connecting rod, 30 rubber fitting seat, 31 lower trigger button, 32 vertical slide, 33 telescopic rod, 34 fixing ring, 35 upper trigger button, 36 positioning sleeve. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Example 1: Reference Figures 1-3 A welding device based on processing of lithium battery electrode columns includes a current collecting plate 16 and a console 2 arranged on a support base 1, and the current collecting plate 16 is provided with two metal seats 17 for cooperating with the electrode column 11 for welding;

[0051] The two metal seats 17 are fixedly mounted on the current collecting plates 16 , respectively. The two electrode columns 11 are fixedly welded to the two metal seats 17 by a welding device.

[0052] The welding device also includes:

[0053] The welding position adjustment unit is used to realize the sleeve installation and positioning of the two electrode columns 11 and realize the surrounding full welding between the electrode columns 11 and the metal base 17;

[0054] The center positioning unit is provided on the support base 1 and is used to realize the positioning and placement of the current collecting plate 16, and to adjust the relative position of the metal seat 17 and the electrode column 11 on the current collecting plate 16, and to cooperate with the welding adjustment unit to adjust the position of the electrode column 11 so that the center line between the metal seat 17 and the electrode column 11 is kept aligned to ensure the accuracy of the welding position.

[0055] The hydraulic control rod 4 is provided in the control console 2 and is used to adjust the distance between the welding position adjustment unit and the center positioning unit to achieve efficient welding of the electrode column 11 .

[0056] A carrying platform 7 is provided on the support base 1, and the center positioning unit is provided on the carrying platform 7;

[0057] A control panel 3 is provided on the console 2 , and the control panel 3 is used to control the opening and closing and operating states of the welding position adjustment unit, the center positioning unit and the hydraulic control rod 4 , so as to realize the automated welding of the electrode column 11 .

[0058] Example 2: Reference Figures 2-5 as well as Figures 9-13 The technical solution of this embodiment is different from that of the first embodiment in that the welding positioning unit includes a positioning component 1 and a welding component. The positioning component 1 is provided with a sleeve mechanism, and the sleeve mechanism is provided with two sleeve covers 14 that cooperate with the corresponding electrode columns 11.

[0059] The first adjustment component includes a lifting welding platform 5 fixedly mounted on the driving end of the hydraulic control rod 4, a hydraulic lifting rod 13 fixedly mounted in the lifting welding platform 5, and a sleeve cover 14 fixedly mounted on the driving end of the hydraulic lifting rod 13, a linkage frame 22 fixedly mounted on the sleeve cover 14, and another sleeve cover 14 fixedly mounted on the linkage frame 22;

[0060] The hydraulic control rod 4 is used to control the height position of the lifting welding platform 5 to facilitate efficient welding of the electrode column 11;

[0061] The hydraulic lifting rod 13 starts to adjust the right side cover 14 ( Figure 11 When the right side cover 14 is lifted and lowered, the linkage frame 22 is lifted and lowered, and when the linkage frame 22 is lifted and lowered, the left side cover 14 is driven to move up and down.

[0062] Both sleeve covers 14 are provided with a sleeve mechanism, which includes an elastic connecting rod 29 fixedly installed in the sleeve cover 14, and a positioning sleeve 36 fixedly installed at the lower end of the elastic connecting rod 29, and a rubber fitting seat 30 fixedly installed in the positioning sleeve 36 for squeezing and positioning the electrode column 11;

[0063] When the hydraulic lifting rod 13 drives the sleeve cover 14 to move downward, the sleeve cover 14 moves downward and the electrode column 11 is engaged with the interior of the sleeve cover 14 and the positioning sleeve 36 and the rubber fitting seat 30 in the sleeve cover 14;

[0064] As the sleeve cover 14 gradually moves downward, the electrode column 11 will be gradually pressurized, so that the electrode column 11 can be gradually engaged and embedded in the rubber fitting seat 30. When the electrode column 11 is completely embedded, the automatic engagement and positioning of the electrode column 11 can be completed. At this time, when the hydraulic lifting rod 13 is raised or lowered, it will drive the electrode column 11 to move up and down synchronously through the sleeve cover 14.

[0065] In a further embodiment, a driving mechanism and two welding guns 27 are provided in the welding assembly, and the driving mechanism drives the welding guns 27 to rotate to achieve circumferential welding of the electrode column 11;

[0066] The driving mechanism comprises a servo motor 12 fixedly installed in the lifting welding table 5, a driving roller 28 fixedly installed on a driving end of the servo motor 12, and a driven roller 24 rotatably installed in the lifting welding table 5, with a transmission belt 23 sleeved between the driving roller 28 and the driven roller 24.

[0067] When the servo motor 12 is started, the driving roller 28 is driven to rotate, and the driving roller 28 drives the driven roller 24 to rotate through the transmission belt 23.

[0068] The welding assembly comprises two fixed rings 34 fixedly installed outside the two sleeve covers 14, two driven gear rings 26 rotatably installed on the two fixed rings 34, and two driving gear columns 25 fixedly installed on the driving roller 28 and the driven roller 24, with the two driving gear columns 25 engaged with the two driven gear rings 26, respectively.

[0069] The fixed ring 34 is used to enable the driven gear ring 26 to lift along with the lifting of the sleeve cover 14, and the driven gear ring 26 can rotate smoothly due to the rotational connection between the fixed ring 34 and the driven gear ring 26.

[0070] In addition, the length of the driving gear column 25 is relatively long, so that the driving gear column 25 is always in engagement with the driven gear ring 26 regardless of the lifting movement of the driven gear ring 26.

[0071] When the driving roller 28 and the driven roller 24 rotate, the two driving gear columns 25 thereon rotate together, and the two driving gear columns 25 drive the corresponding driven gear rings 26 to rotate together.

[0072] The lower parts of the two driven gear rings 26 are obliquely provided with welding guns 27 for the electrode column 11, and the two welding guns 27 are obliquely arranged, with the end parts directed to the bottom of the electrode column 11. When the welding gun 27 is started, the electrode column 11 and the metal seat 17 are efficiently welded, so that the driven gear ring 26 drives the welding gun 27 to rotate synchronously when the driven gear ring 26 rotates, and the welding gun 27 changes the welding position when the welding gun 27 rotates, thereby realizing the comprehensive circumferential welding between the electrode column 11 and the metal seat 17, improving the welding efficiency, and ensuring the welding accuracy.

[0073] Embodiment three: refer to Figures 3-8 , Figure 10 and Figures 14-15 The difference between the technical solutions of the embodiment three and the embodiment two is that the center positioning unit comprises a placing assembly and a second position adjusting assembly, the placing assembly is used to realize the positioning and placing of the current collecting plate 16, the second position adjusting assembly is provided with a center positioning mechanism between the sleeve cover 14, and the center positioning mechanism is used to realize the center line positioning of the metal seat 17 and the electrode column 11, thereby ensuring the accuracy of the welding position.

[0074] The placing assembly comprises a positioning table 6 clamped and installed on the bearing platform 7, two limiting sliding rods 15 fixedly installed in the positioning table 6, a placing box 10 fixedly installed on the two limiting sliding rods 15, a positioning plate 18 fixedly installed in the placing box 10, and a plurality of positioning grooves 19 for clamping and placing the current collecting plate 16 are formed in the positioning plate 18.

[0075] The two limiting sliding rods 15 are used for enabling the placing box 10 to horizontally slide in the positioning table 6, so as to facilitate adjustment of the horizontal position of the current collecting plate 16 in the placing box 10.

[0076] The plurality of positioning grooves 19 are used for clamping and placing the current collecting plate 16, and the plurality of positioning grooves 19 are arranged at the center line position of the positioning plate 18, so as to ensure that the current collecting plate 16 is directly arranged at the same center line position as the positioning plate 18 when clamped and placed.

[0077] The plurality of positioning grooves 19 can be matched with current collecting plates 16 of various sizes, and the current collecting plates 16 of various sizes are all arranged at the center line position when installed, so as to realize welding of the current collecting plates 16 of various types with the electrode column 11 and ensure that the metal seats 17 of various sizes are all arranged at the accurate welding position with the electrode column 11.

[0078] In a further embodiment, the position adjusting assembly two comprises a threaded adjusting rod 8 threadedly installed in the positioning table 6, the end of the threaded adjusting rod 8 is rotationally connected with the placing box 10, and two telescopic rods 33 for limiting are fixedly installed between the placing box 10 and the positioning table 6.

[0079] When the threaded adjusting rod 8 is rotated, the placing box 10 is pushed to horizontally move in the positioning table 6, so as to directly adjust the position of the positioning plate 18 in the placing box 10, and then the horizontal position of the current collecting plate 16 and the metal seat 17 thereon in the positioning plate 18 is adjusted, so as to ensure that the metal seat 17 is arranged at the same center line as the electrode column 11 and ensure the accuracy of the welding position.

[0080] In a further embodiment, the center positioning mechanism comprises a center control box 9 slidingly installed in the positioning table 6, a lower center seat 20 fixedly installed on the outer side of the placing box 10 and matched with the center control box 9, an upper center seat 21 fixedly installed on the outer side of the sleeve cover 14 and matched with the center control box 9, and a vertical sliding groove 32 matched with the upper center seat 21 is formed in the lifting welding table 5.

[0081] When the electrode column 11 is sleeved and positioned through the sleeve cover 14, the threaded adjusting rod 8 is rotated to adjust the position of the placing box 10 and the metal seat 17 thereon, and since the electrode column 11 is fixed through the sleeve cover 14, the electrode column 11 does not move synchronously when the metal seat 17 moves.

[0082] The initial position of the upper center seat 21 on the sleeve cover 14 is the same as the center line of the center control box 9, so that the electrode column 11 is in the center line state after the sleeve cover 14 is sleeved and positioned on the electrode column 11;

[0083] While the placing box 10 is moving, the center control box 9 is slid to make the upper center seat 21 on the sleeve cover 14 first clamped into the center control box 9, and then the lower center seat 20 on the placing box 10 is also clamped into the center control box 9 through the movement of the placing box 10, at this time the position adjustment of the current collecting plate 16 in the placing box 10 is completed, that is, the metal seat 17 on the current collecting plate 16 is in the same center line with the electrode column 11, and then the position adjustment of the electrode column 11 and the metal seat 17 is completed, so that the installation position of the electrode column 11 on the metal seat 17 is accurate, at this time the welding of the electrode column 11 and the metal seat 17 can be carried out.

[0084] The upper trigger button 35 and the lower trigger button 31 are fixedly installed in the center control box 9, and the upper trigger button 35 and the lower trigger button 31 are matched with the upper center seat 21 and the lower center seat 20 respectively, the support seat 1 is provided with a sensing lamp matched with the upper trigger button 35 and the lower trigger button 31, and the sensing lamp is lighted when the upper trigger button 35 and the lower trigger button 31 are triggered together.

[0085] The upper center seat 21 contacts the upper trigger button 35 after being clamped into the center control box 9, and the lower center seat 20 contacts the lower trigger button 31 after being clamped into the center control box 9, when the upper trigger button 35 and the lower trigger button 31 are triggered at the same time, the sensing lamp is lighted, that is, the position adjustment of the current collecting plate 16 and the metal seat 17 thereon is completed, at this time the sensing lamp is lighted, and whether the welding can be carried out can be judged by observing whether the sensing lamp is lighted, when the sensing lamp is lighted, the welding work can be started.

[0086] The specific working principle of the welding device is as follows:

[0087] When the electrode column 11 is welded, the current collecting plate 16 provided with two metal seats 17 is placed in the multi-stage positioning groove 19 in the positioning plate 18 in the placing box 10, the positioning of the current collecting plate 16 is completed through the multi-stage positioning groove 19, and then the two electrode columns 11 are respectively placed on the upper parts of the two metal seats 17, so that the preparation work is completed.

[0088] The hydraulic control lever 4 is started again to drive the lifting welding table 5 to descend, so that the lifting welding table 5 is lowered to be just sleeved on the upper part of the positioning table 6, and the right sleeve cover 14 is lowered by starting the hydraulic lifting rod 13, and the sleeve cover 14 is lowered to drive the linkage frame 22 to move downward, and the linkage frame 22 is lowered to drive the left sleeve cover 14 to move downward, and when the sleeve cover 14 is lowered by the hydraulic lifting rod 13, the electrode column 11 is clamped into the sleeve cover 14, and the positioning sleeve 36 in the sleeve cover 14 is clamped into the rubber embedding seat 30;

[0089] With the gradual lowering of the sleeve cover 14, the electrode column 11 is gradually pressed, that is, the electrode column 11 is gradually clamped and embedded in the rubber embedding seat 30, and when the electrode column 11 is completely embedded, the automatic clamping and positioning of the electrode column 11 is completed, and when the hydraulic lifting rod 13 is lifted, the electrode column 11 is lifted synchronously through the sleeve cover 14, and the sleeve positioning of the electrode column 11 is completed.

[0090] When the electrode column 11 is positioned by the sleeve cover 14, the position of the placement box 10 and the metal seat 17 thereon is adjusted by rotating the threaded adjusting rod 8, and since the electrode column 11 is fixed by the sleeve cover 14, the electrode column 11 does not move synchronously when the metal seat 17 moves.

[0091] The initial position of the upper center seat 21 on the sleeve cover 14 is the same as the center line of the center control box 9, so that after the sleeve cover 14 is positioned, the electrode column 11 is in the center line state;

[0092] When the placement box 10 moves, the upper center seat 21 on the sleeve cover 14 is clamped into the center control box 9 by sliding the center control box 9, and then the lower center seat 20 on the placement box 10 is also clamped into the center control box 9 by moving the placement box 10, so that the position adjustment of the current collector plate 16 in the placement box 10 is completed, that is, the metal seat 17 on the current collector plate 16 is in the same center line as the electrode column 11, and the position adjustment of the electrode column 11 and the metal seat 17 is completed, so that the installation position of the electrode column 11 on the metal seat 17 is accurate, and the welding of the electrode column 11 and the metal seat 17 can be performed;

[0093] When the upper center seat 21 is clamped into the center control box 9, the upper trigger button 35 is contacted, and when the lower center seat 20 is clamped into the center control box 9, the lower trigger button 31 is contacted, and when the upper trigger button 35 and the lower trigger button 31 are triggered at the same time, the sensing lamp is lit, that is, the position adjustment of the current collector plate 16 and the metal seat 17 thereon is completed, and the sensing lamp is lit, so that whether the welding can be performed can be judged by observing whether the sensing lamp is lit, and when the sensing lamp is lit, the welding work can be started.

[0094] The servo motor 12 is re-started to drive the driving roller 28 to rotate, and the driving roller 28 drives the driven roller 24 to rotate through the transmission belt 23 when rotating, and the two driving gear columns 25 on the driving roller 28 and the driven roller 24 rotate together, and the two driving gear columns 25 drive the corresponding driven gear rings 26 to rotate together when rotating.

[0095] The lower parts of the two driven gear rings 26 are obliquely provided with the welding guns 27 for welding the electrode columns 11, and the two welding guns 27 are obliquely arranged, and the end parts are arranged towards the bottom of the electrode column 11, and the welding guns 27 are started to efficiently weld the electrode column 11 and the metal seat 17, so that the driven gear rings 26 drive the welding guns 27 to rotate synchronously when rotating, and the welding guns 27 change the welding positions when rotating, and the electrode column 11 and the metal seat 17 are fully and circumferentially welded.

[0096] The embodiment of the present application also provides a welding method based on lithium battery electrode column processing, which is used for the welding device for lithium battery electrode column processing and comprises the following steps.

[0097] S1, the current collecting plate 16 is first placed in the placing assembly in the center positioning unit and positioned, and then the two electrode columns 11 are respectively placed on the two metal seats 17 on the current collecting plate 16;

[0098] S2, the hydraulic control rod 4 is started to control the welding positioning unit to descend, and the sleeve setting mechanism in the positioning assembly one sets and positions the two electrode columns 11;

[0099] S3, the horizontal positions of the current collecting plate 16 and the metal seats 17 thereon are adjusted through the positioning assembly two, the upper center seat 21 is clamped into the center control box 9 through the cooperation of the center positioning mechanism, the lower center seat 20 is clamped into the center control box 9 through the movement of the placing box 10, the real-time determination of the center line position of the current collecting plate 16 in the placing box 10 is completed, and the center adjustment of the welding position is completed until the metal seats 17 and the electrode columns 11 are on the same center line.

[0100] S4, the two welding guns 27 in the welding assembly are started, and the circumferential and full welding between the two electrode columns 11 and the corresponding metal seats 17 is simultaneously performed.

[0101] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A welding device based on processing of lithium battery electrode columns, comprising a current collecting plate (16) and a control console (2) arranged on a support seat (1), wherein the current collecting plate (16) is provided with two metal seats (17) for cooperating with the electrode column (11) for welding, characterized in that: Also includes: A welding positioning unit comprises a positioning assembly 1 and a welding assembly, wherein a sleeve mechanism is provided in the positioning assembly 1, and two sleeve covers (14) are provided in the sleeve mechanism and cooperate with corresponding electrode columns (11); a driving mechanism and two welding guns (27) are provided in the welding assembly, and the driving mechanism drives the welding guns (27) to rotate to achieve circumferential welding of the electrode column (11); A center positioning unit is provided on the support seat (1), comprising a placement component and a second positioning component, wherein the placement component is used to achieve the positioning and placement of the current collecting plate (16), and a center positioning mechanism is provided between the second positioning component and the sleeve cover (14), and the center positioning mechanism is used to achieve the centerline positioning of the metal seat (17) and the electrode column (11), thereby ensuring the accuracy of the welding position; The support seat (1) is provided with a bearing platform (7), the placement component includes a positioning platform (6) mounted on the bearing platform (7), two limiting sliding rods (15) are fixedly mounted in the positioning platform (6), and a placement box (10) is fixedly mounted on the two limiting sliding rods (15), the center positioning mechanism includes a center control box (9) slidably mounted in the positioning platform (6), a lower center seat (20) matched with the center control box (9) is fixedly mounted on the outer side of the placement box (10), and an upper center seat (21) matched with the center control box (9) is fixedly mounted on the outer side of the sleeve cover (14); A hydraulic control rod (4) is provided in the control console (2) and is used to adjust the distance between the welding position adjustment unit and the center positioning unit to achieve efficient welding of the electrode column (11).

2. A welding device for processing lithium battery electrode columns according to claim 1, characterized in that: The center positioning unit is arranged on the carrying platform (7), and a control panel (3) is arranged on the console (2). The control panel (3) is used to control the opening and closing and operating states of the welding positioning unit, the center positioning unit and the hydraulic control rod (4), thereby realizing automated welding of the electrode column (11).

3. A welding device for processing lithium battery electrode columns according to claim 2, characterized in that: The positioning component 1 comprises a lifting welding platform (5) fixedly mounted on the driving end of a hydraulic control rod (4), a hydraulic lifting rod (13) fixedly mounted in the lifting welding platform (5), and a sleeve cover (14) fixedly mounted on the driving end of the hydraulic lifting rod (13), a linkage frame (22) fixedly mounted on the sleeve cover (14), and another sleeve cover (14) fixedly mounted on the linkage frame (22), and a sleeve mechanism is provided in both sleeve covers (14).

4. A welding device for processing lithium battery electrode columns according to claim 3, characterized in that: The sleeve mechanism comprises an elastic connecting rod (29) fixedly mounted in the sleeve cover (14), and a positioning sleeve (36) is fixedly mounted on the lower end of the elastic connecting rod (29), and a rubber fitting seat (30) for squeezing and positioning the electrode column (11) is fixedly mounted in the positioning sleeve (36).

5. A welding device for processing lithium battery electrode columns according to claim 4, characterized in that: The welding assembly comprises two fixing rings (34) fixedly mounted on the outside of two sleeve covers (14), a driven gear ring (26) being rotatably mounted on each of the fixing rings (34), and a welding gun (27) for welding the electrode column (11) being obliquely arranged at the lower portion of each of the two driven gear rings (26).

6. A welding device for processing lithium battery electrode columns according to claim 5, characterized in that: The driving mechanism comprises a servo motor (12) fixedly mounted in the lifting welding platform (5), and a driving roller (28) fixedly mounted on the driving end of the servo motor (12), a driven roller (24) rotatably mounted in the lifting welding platform (5), and a transmission belt (23) sleeved between the driven roller (24) and the driving roller (28), and a driving gear column (25) fixedly mounted on both the driving roller (28) and the driven roller (24), and the two driving gear columns (25) are respectively engaged with two driven gear rings (26).

7. A welding device for processing lithium battery electrode columns according to claim 4, characterized in that: A positioning plate (18) is fixedly installed in the placement box (10), and a multi-stage positioning groove (19) for engaging and placing the current collecting plate (16) is provided in the positioning plate (18).

8. The welding device for processing lithium battery electrode columns according to claim 7, characterized in that: The second positioning component comprises a threaded adjustment rod (8) threadedly mounted in the positioning platform (6), and the end of the threaded adjustment rod (8) is rotatably connected to the placement box (10), and two telescopic rods (33) for limiting are fixedly installed between the placement box (10) and the positioning platform (6).

9. A welding device for processing lithium battery electrode columns according to claim 8, characterized in that: A vertical slide groove (32) cooperating with the upper center seat (21) is provided on the lifting welding table (5); an upper trigger button (35) and a lower trigger button (31) are fixedly installed in the central control box (9); and the upper trigger button (35) and the lower trigger button (31) are respectively cooperating with the upper center seat (21) and the lower center seat (20); an induction light cooperating with the upper trigger button (35) and the lower trigger button (31) is provided on the support seat (1); and the induction light lights up when the upper trigger button (35) and the lower trigger button (31) are triggered together.

10. A welding method based on processing a lithium battery electrode column, used for the welding device for processing a lithium battery electrode column according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, place the current collecting plate (16) in the placement assembly in the central positioning unit and position it, and then place the two electrode columns (11) on the two metal seats (17) on the current collecting plate (16) respectively; S2, starting the hydraulic control rod (4) to control the welding position adjustment unit to descend, so that the sleeve mechanism in the position adjustment component 1 sleeves and positions the two electrode columns (11); S3, adjusting the horizontal position of the current collecting plate (16) and the metal seat (17) thereon by means of the second adjustment component, and sliding the central control box (9) by means of the cooperation of the central positioning mechanism, so that the upper central seat (21) is engaged with the central control box (9), and then the lower central seat (20) is engaged with the central control box (9) by means of the movement of the placement box (10), completing the real-time determination of the centerline position of the current collecting plate (16) in the placement box (10), until the metal seat (17) and the electrode column (11) are adjusted to be on the same centerline, completing the center adjustment of the welding position; S4. Start the two welding guns (27) in the welding assembly and simultaneously perform a surrounding full-scale welding between the two electrode columns (11) and the corresponding metal seats (17).

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