Integrated device for laser marking and electrode welding of manifolds

Abstract

This utility model relates to the field of battery manufacturing technology, and discloses an integrated device for laser marking of current collectors and welding of terminals. The device includes a base, a cover plate, and a locking structure. The base has several sets of positioning structures for positioning the current collector and terminals. The cover plate is fastened to the base and locked by the locking structure so that the current collector abuts against the side of the terminal facing the cover plate. The base has a first through hole along its thickness direction, exposing the marking area of ​​the current collector, and the first through hole is offset from the terminal. The cover plate has a second through hole along its thickness direction, exposing the welding area between the terminal and the current collector. This utility model allows for marking of the current collector and welding of the current collector to the terminal with a single clamping and flipping operation, effectively improving welding quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an integrated device for laser marking of current collectors and welding of terminals. Background Technology

[0002] In the field of power battery manufacturing, laser marking of the current collector (for product traceability) and electrode welding (for current conduction) are two key processes. Currently, the industry generally adopts a split processing solution: marking fixture positioning → laser marking and then transfer to welding fixture → repositioning → electrode welding. The entire process requires two positioning clamping operations. This method has the following drawbacks: ① Multiple clamping operations lead to deviations in the marking and welding positions, affecting welding yield; ② Process changeovers result in longer cycle times and reduced production capacity; ③ Dust may adhere to the surface of the current collector during transfer, affecting welding quality; ④ Multiple clamping forces cause slight deformation of the thin-walled current collector. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide an integrated device for laser marking of manifold and welding of electrode posts, which can improve welding quality and welding efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An integrated device for laser marking and electrode welding of a collector plate is provided, comprising a base, a cover plate, and a locking structure. The base has several sets of positioning structures for positioning the collector plate and the electrode. The cover plate is fastened to the base and locked by the locking structure so that the collector plate abuts against the side of the electrode facing the cover plate. The base has a first through hole extending through its thickness direction, exposing the marking area of ​​the collector plate, and the first through hole is offset from the electrode. The cover plate has a second through hole extending through its thickness direction, exposing the welding area between the electrode and the collector plate.

[0006] As a further embodiment of the integrated device for laser marking and electrode welding of the collector plate, the base also has a base body, which can be locked to the cover plate by the locking structure; the positioning structure includes a first positioning groove and a second positioning groove, the first positioning groove is provided on the side of the base body facing the cover plate, the bottom of the first positioning groove is provided with the second positioning groove and the first through hole spaced apart, the electrode is disposed in the second positioning groove, the collector plate is disposed in the first positioning groove and located on the side of the electrode facing the cover plate; one side of the first positioning groove extends through the edge of the base body to form an opening for the collector plate to pass through.

[0007] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, the positioning structure further includes a positioning platform and an elastic part. The positioning platform is located in the second positioning groove and can move along the axis of the second positioning groove. Therefore, the elastic part is located in the second positioning groove, and one end of the elastic part abuts against the positioning platform, while the other end abuts against the bottom of the second positioning groove. The positioning platform has a first stepped hole coaxial with the second positioning groove at one end facing the cover plate, and the electrode is inserted into the first stepped hole.

[0008] As a further embodiment of the integrated device for laser marking and electrode welding of the collector plate, the base also has a fixing block. The base body has an installation groove on the side away from the cover plate. The fixing block is fixed in the installation groove. The side of the fixing block facing the positioning platform is the bottom of the second positioning groove. One end of the elastic part abuts against the positioning platform, and the other end abuts against the fixing block.

[0009] The positioning platform has a limiting protrusion on its outer periphery. The limiting protrusion is adjacent to the end of the positioning platform facing the fixed block. The groove wall of the second positioning groove has a limiting step that cooperates with the limiting protrusion. The elastic part makes the positioning platform always have a tendency to move away from the fixed block.

[0010] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, the positioning structure further includes a first positioning pin, a second positioning pin, and at least two spring pins. The first positioning pin is embedded in the groove wall of the first positioning groove and partially protrudes from the side wall of the first positioning groove. The second positioning pin is fixed to the bottom of the first positioning groove and is located at the center of the opening of the first positioning groove. All the spring pins are spaced apart at the bottom of the first positioning groove.

[0011] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, the base also has multiple height-limiting posts. The base body has multiple fixing grooves at intervals on the side facing the cover plate, each corresponding to one of the height-limiting posts. The fixing grooves are located at the edge of the base body and are offset from the positioning structure. The height-limiting posts are threadedly connected to the bottom of the fixing grooves. One end of the height-limiting post, away from the bottom of the fixing groove, protrudes from the base body and abuts against the cover plate.

[0012] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, the locking structure includes a locking block, a screw, a locking pin, and a locking nut. A locking block is installed at each of the two opposite corners of the base body. Each locking block has an inverted T-shaped groove with its opening facing the cover plate. One end of the screw passes through the cover plate and is screwed onto the locking nut. The other end of the screw is perpendicularly connected to the locking pin in a cross-shaped structure. The locking nut is located on the side of the cover plate away from the base. The locking pin can be inserted into the inverted T-shaped groove. Tightening the screw allows the locking pin to engage with the inverted T-shaped groove, and the locking nut can be tightened to abut against the cover plate.

[0013] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, it further includes at least two third positioning pins and positioning pin holes corresponding to the third positioning pins. The positioning pin holes are disposed on one of the cover plate and the base body, and the third positioning pins are disposed on the other. The third positioning pins are inserted into the positioning pin holes.

[0014] As a further embodiment of the integrated device for laser marking and electrode welding of the manifold, the base body has a first device positioning hole at each end along its length direction, and the first device positioning hole penetrates along the thickness direction of the base body; the cover plate has a second device positioning hole at each end along its length direction, and the second device positioning hole penetrates along the thickness direction of the cover plate; the first device positioning hole and the second device positioning hole correspond one-to-one.

[0015] As a further embodiment of the integrated device for laser marking and electrode welding of the collector plate, the cover plate includes a cover plate body and a pressure claw. The cover plate body is locked to the base body by the locking structure. The cover plate body has a second through hole extending through its thickness direction. The pressure claw is located on the side of the cover plate body facing the base. One end of the pressure claw is connected to the cover plate body, and the other end extends into the second through hole to abut against the collector plate. The welding area of ​​the collector plate and the electrode is exposed outside the pressure claw.

[0016] Beneficial effects:

[0017] This invention positions the collector plate and electrode post on a base using a positioning structure. After the cover plate is locked to the base using a locking structure, the collector plate is pressed against the base, and the collector plate abuts against the electrode post. When the base is above the cover plate, an external marking device can mark the collector plate through the first through hole in the base. Flipping the integrated device so that the cover plate is above the base allows an external welding device to weld the electrode post and collector plate through the second through hole in the cover plate. Using this integrated device for laser marking and electrode post welding of the collector plate and electrode post, the marking and welding of the collector plate and electrode post can be achieved in a single clamping and flipping operation. Compared with existing technologies, this reduces the deviation in marking and welding positions caused by multiple clamping operations, improving welding yield. It also eliminates the need for secondary clamping processes, increasing production capacity and avoiding micro-deformation of the collector plate caused by multiple clamping operations. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the integrated device for laser marking and electrode welding of the collector plate as described in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the integrated device for laser marking and electrode welding of the collector plate as described in an embodiment of the present invention, viewed from the welding angle.

[0021] Figure 3 This is a schematic diagram of the integrated device for laser marking and electrode welding of the collector plate as described in this embodiment of the present invention, viewed from the marking angle.

[0022] Figure 4 This is a schematic diagram of the assembly structure of the base and the third positioning pin according to an embodiment of the present utility model;

[0023] Figure 5 for Figure 2 A schematic diagram of the cross-section in the OO direction;

[0024] Figure 6 for Figure 5 A magnified view of part P in the middle;

[0025] Figure 7 This is a top view of the cover plate described in an embodiment of the present utility model;

[0026] Figure 8 This is a bottom view of the cover plate described in an embodiment of the present utility model;

[0027] Figure 9 This is a side view schematic diagram of the laser marking and electrode welding of the collector plate as described in an embodiment of the present invention.

[0028] In the picture:

[0029] 1. Current collector; 2. Terminal post; A. Welding area; B. Marking area;

[0030] 100. Base; 1001. First through hole; 110. Base body; 1101. First positioning groove; 1102. Second positioning groove; 1103. Fixing groove; 1104. First equipment positioning hole; 120. Positioning platform; 1201. First limiting groove; 121. Limiting protrusion; 130. Elastic part; 140. Fixing block; 1401. Second limiting groove; 150. First positioning pin; 160. Second positioning pin; 170. Spring pin; 180. Height limiting post; 190. Handle;

[0031] 200, Cover plate; 2001, Second through hole; 2002, Second equipment positioning hole; 210, Cover plate body; 220, Pressure claw;

[0032] 300. Locking structure; 310. Locking block; 3101. Inverted T-slot; 320. Screw; 330. Snap pin; 340. Locking nut; 350. Knob;

[0033] 400, third locating pin; 500, locating pin hole. Detailed Implementation

[0034] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are merely used for distinction in description and have no special meaning.

[0038] like Figures 1 to 3 As shown, the integrated device for laser marking and electrode welding of the collector plate in this embodiment includes a base 100, a cover plate 200, and a locking structure 300. The base 100 has several sets of positioning structures for positioning the collector plate 1 and the electrode 2. The cover plate 200 is fastened to the base 100 and locked by the locking structure 300 so that the collector plate 1 is pressed against the side of the electrode 2 facing the cover plate 200. The base 100 is provided with a first through hole 1001 through its thickness direction to expose the marking area B of the collector plate 1. The first through hole 1001 is offset from the electrode 2. The cover plate 200 is provided with a second through hole 2001 through its thickness direction to expose the welding area A of the electrode 2 and the collector plate 1.

[0039] Understandably, the collector plate 1 and the pole post 2 are positioned on the base 100 by the positioning structure. After the cover plate 200 is locked to the base 100 by the locking structure 300, the collector plate 1 can be pressed against the base 100 and the collector plate 1 can be in contact with the pole post 2. When the base 100 is above the cover plate 200, the collector plate 1 can be engraved by an external laser marking device through the first through hole 1001 on the base 100. When the integrated device is flipped so that the cover plate 200 is above the base 100, the external welding device can weld the pole post 2 and the collector plate 1 through the second through hole 2001 on the cover plate 200. By using the integrated device for laser marking and electrode welding of the collector plate in this embodiment, the collector plate 1 and electrode 2 can be marked and welded to the electrode 2 by flipping after a single clamping. Compared with the prior art, this can reduce the deviation of the marking and welding positions caused by multiple clamping, and improve the welding yield; it also eliminates the secondary clamping process, increases production capacity, and avoids the phenomenon of micro deformation of the collector plate 1 caused by multiple clamping.

[0040] Furthermore, such as Figures 4 to 6 As shown, the base 100 also has a base body 110, which can be locked to the cover plate 200 by a locking structure 300; the positioning structure includes a first positioning groove 1101 and a second positioning groove 1102. The base body 110 has a first positioning groove 1101 on the side facing the cover plate 200. The bottom of the first positioning groove 1101 is provided with a second positioning groove 1102 and a first through hole 1001 at intervals. The pole post 2 is disposed in the second positioning groove 1102, and the collector plate 1 is disposed in the first positioning groove 1101 and located on the side of the pole post 2 facing the cover plate 200; one side of the first positioning groove 1101 passes through the edge of the base body 110 to form an opening for the collector plate 1 to pass through.

[0041] In this embodiment, the second positioning groove 1102 is used to position the pole post 2. After the pole post 2 is placed, the collector plate 1 is placed in the first positioning groove 1101. At this time, the collector plate 1 is partially located above the pole post 2. One side of the first positioning groove 1101 extends through the edge of the base body 110 to form an opening, providing clearance space for the collector plate 1. The cover plate 200 is locked to the top of the base body 110 by the locking structure 300, so that the collector plate 1 abuts against the pole post 2.

[0042] like Figure 6As shown, the positioning structure also includes a positioning platform 120 and an elastic part 130. The positioning platform 120 is located in the second positioning groove 1102 and can move along the axis of the second positioning groove 1102. Therefore, the elastic part 130 is located in the second positioning groove 1102, and one end of the elastic part 130 abuts against the positioning platform 120, and the other end abuts against the bottom of the second positioning groove 1102. The positioning platform 120 has a first stepped hole coaxial with the second positioning groove 1102 at one end facing the cover plate 200, and the pole post 2 is inserted into the first stepped hole.

[0043] The first stepped hole on the positioning platform 120 is used to position the support pole 2. The positioning platform 120 is set in the second positioning groove 1102 and can move up and down. The elastic part 130 is set in the second positioning groove 1102 and is located between the positioning platform 120 and the bottom of the second positioning groove 1102. The elastic part 130 can elastically abut against the positioning platform 120. When the cover plate 200 is fixed on the base 100 by the locking structure 300, the cover plate 200 applies a downward pressure force to the pole 2 through the collector plate 1. The design of the elastic part 130 can provide a buffer for the downward movement of the pole 2 and the collector plate 1, and avoid the deformation of the collector plate 1 caused by rigid clamping.

[0044] Optionally, the elastic part 130 is a spring. In other embodiments, it can also be a spring sheet structure, as long as it can achieve elastic contact with the positioning platform 120. The specific details will not be elaborated further.

[0045] In this embodiment, the positioning platform 120 is made of pure copper, which can improve the thermal conductivity of the welding position and the lifespan of the positioning platform 120.

[0046] In this embodiment, the upper end of the second positioning groove 1102 is provided with a clearance groove that is in clearance with the outer periphery of the pole post 2 and adjacent to the upper end of the pole post 2.

[0047] In this embodiment, the base 100 also has a fixing block 140. The base body 110 has an installation groove on the side away from the cover plate 200. The fixing block 140 is fixed in the installation groove. The side of the fixing block 140 facing the positioning platform 120 is the bottom of the second positioning groove 1102. One end of the elastic part 130 abuts against the positioning platform 120, and the other end abuts against the fixing block 140. The outer periphery of the positioning platform 120 is provided with a limiting protrusion 121. The limiting protrusion 121 is adjacent to the end of the positioning platform 120 facing the fixing block 140. The groove wall of the second positioning groove 1102 is provided with a limiting step that cooperates with the limiting protrusion 121. The elastic part 130 makes the positioning platform 120 always have a tendency to move away from the fixing block 140.

[0048] In this embodiment, the positioning platform 120 and the limiting protrusion 121 are integrally formed.

[0049] To prevent the positioning platform 120 from popping out of the second positioning groove 1102 under the action of the elastic part 130 and affecting the positioning of the pole post 2 and the collector plate 1, this embodiment provides a limiting protrusion 121 on the outer periphery of the positioning platform 120, and correspondingly provides a limiting step on the groove wall of the second positioning groove 1102 that cooperates with the limiting protrusion 121. The cooperation between the limiting step and the limiting protrusion 121 means that when there is no external force, the elastic part 130 can only drive the positioning platform 120 to move upward until the limiting protrusion 121 abuts against the limiting step, thereby limiting the upward movement distance of the positioning platform 120. At the same time, the fixing block 140 is fixed in the mounting groove on the base body 110 by fasteners, so that the fixing block 140 can serve as the bottom of the second positioning groove 1102 and provide support for the elastic part 130.

[0050] Furthermore, in order to prevent the elastic part 130 from bending during the compression process, the positioning platform 120 is provided with a first limiting groove 1201 coaxial with the first step hole at one end facing the fixing block 140, and the fixing block 140 is provided with a second limiting groove 1401 corresponding to the first limiting groove 1201 at one end facing the positioning platform 120. One end of the elastic part 130 extends into the first limiting groove 1201 and abuts against the positioning platform 120, and the other end extends into the second limiting groove 1401 and abuts against the fixing block 140.

[0051] In this embodiment, as Figure 1 As shown, the width direction of the base body 110 is defined as the X direction, the length direction as the Y direction, and the thickness direction as the Z direction. The positioning structure consists of multiple sets: two sets of spaced-apart positioning structures along the X direction, and multiple sets of positioning structures along the Y direction, meaning all positioning structures are arranged in a 2*n array, where n is an integer greater than 2. For example... Figure 2 As shown, the positioning structure in this embodiment is arranged in a 2*6 array, which can simultaneously perform coding and welding on 12 sets of current collectors 1 and pole posts 2. This embodiment can maximize the number of welding and coding operations that can be carried out according to the size of the equipment, greatly improving production capacity.

[0052] Further, refer to Figure 4 The positioning structure also includes a first positioning pin 150, a second positioning pin 160, and at least two spring pins 170. The first positioning pin 150 is embedded in the groove wall of the first positioning groove 1101 and partially protrudes from the side wall of the first positioning groove 1101. The second positioning pin 160 is fixed to the bottom of the first positioning groove 1101 and is located at the center of the opening of the first positioning groove 1101. All the spring pins 170 are spaced apart at the bottom of the first positioning groove 1101.

[0053] In this embodiment, the first positioning pin 150 is used to position the edge of the collector plate 1. The collector plate 1 has a positioning hole corresponding to the second positioning pin 160. By aligning the positioning hole with the second positioning pin 160 and the edge of the collector plate 1 against the first positioning pin 150, the collector plate 1 can be accurately positioned within the first positioning groove 1101, thus aligning the welding area A of the collector plate 1 with the welding area A of the pole post 2. The spring pin 170 elastically abuts against the collector plate 1, preventing the collector plate 1 from rigidly contacting the base body 110 and causing damage.

[0054] Furthermore, the current collector 1 is provided with a welding hole in the welding area A corresponding to the pole post 2. The welding hole is aligned with the center of the pole post 2. External welding equipment is aligned with the welding hole to weld the current collector 1 and the pole post 2, which can achieve a stable connection between the current collector 1 and the pole post 2.

[0055] In this embodiment, the base 100 also has a plurality of height limiting posts 180. The base body 110 is provided with a plurality of fixing grooves 1103 on the side facing the cover plate 200, which correspond one-to-one with the height limiting posts 180. The fixing grooves 1103 are located at the edge of the base body 110. The fixing grooves 1103 are offset from the positioning structure. The height limiting posts 180 are threadedly connected to the bottom of the fixing grooves 1103. One end of the height limiting post 180 away from the bottom of the fixing grooves 1103 protrudes from the base body 110 and abuts against the cover plate 200.

[0056] In this embodiment, the clamping force of the cover plate 200 can be adjusted by rotating the height limiting column 180, further avoiding excessive clamping that could cause deformation and damage to the collector plate 1. Specifically, the base body 110 is provided with four fixing slots 1103, which are respectively located near the four corners of the base body 110.

[0057] like Figures 7 to 9 As shown, the locking structure 300 includes a locking block 310, a screw 320, a locking pin 330, and a locking nut 340. A locking block 310 is installed at each of the two opposite corners of the base body 110. The locking block 310 has an inverted T-shaped groove 3101 with its opening facing the cover plate 200. One end of the screw 320 passes through the cover plate 200 and is screwed into the locking nut 340. The other end of the screw 320 is perpendicularly connected to the locking pin 330 in a cross-shaped structure. The locking nut 340 is located on the side of the cover plate 200 away from the base 100. The locking pin 330 can be inserted into the inverted T-shaped groove 3101. Tightening the screw 320 can make the locking pin 330 engage with the inverted T-shaped groove 3101. The locking nut 340 can be tightened to abut against the cover plate 200.

[0058] First, adjust the position of the locking nut 340 on the screw 320 so that the locking pin 330 can be inserted into the inverted T-groove 3101. Then, rotate the screw 320 to engage the locking pin 330 with the inverted T-groove 3101. Finally, tighten the locking nut 340 to abut against the cover plate 200, thus locking the cover plate 200 and the base 100.

[0059] Furthermore, to facilitate the turning of the screw 320, the locking structure 300 of this embodiment also includes a knob 350. The knob 350 is fixed to the end of the screw 320, and the locking nut 340 is located between the knob 350 and the cover plate 200. By turning the knob 350, the screw 320 can be rotated to adjust the height position of the locking pin 330, so that the locking pin 330 can smoothly extend into the inverted T-shaped groove 3101 and rotate until it engages with the locking block 310.

[0060] Furthermore, such as Figure 4 , Figure 7 and Figure 8 As shown, the integrated device for laser marking and electrode welding of the collector plate in this embodiment also includes at least two third positioning pins 400 and positioning pin holes 500 corresponding to the third positioning pins 400. The positioning pin holes 500 are disposed on one of the cover plate 200 and the base body 110, and the third positioning pins 400 are disposed on the other. The third positioning pins 400 are inserted into the positioning pin holes 500.

[0061] By engaging the third positioning pin 400 with the positioning pin hole 500, the cover plate 200 can be quickly and accurately fastened onto the base 100, improving the clamping efficiency of the collector plate 1 and the pole post 2.

[0062] A third positioning pin 400 is provided at each end of the base body 110 along its length, near the side of the cover plate 200. The cover plate 200 has two positioning pin holes 500 corresponding to the third positioning pins 400. When fastening the cover plate 200, the two positioning pin holes 500 are aligned with one of the third positioning pins 400. Alternatively, in other embodiments, the third positioning pin 400 can be located on the side of the cover plate 200 facing the base 100, with corresponding positioning pin holes 500 on the base body 110, which also provides positioning for fastening the cover plate 200 to the base 100.

[0063] To improve assembly efficiency, one of the two locating pin holes 500 is designed as an oblong hole, with the length of the oblong hole extending along the length direction of the cover plate 200.

[0064] Furthermore, the base body 110 has first equipment positioning holes 1104 at both ends along its length direction, and the first equipment positioning holes 1104 penetrate along the thickness direction of the base body 110; the cover plate 200 has second equipment positioning holes 2002 at both ends along its length direction, and the second equipment positioning holes 2002 penetrate along the thickness direction of the cover plate 200; the first equipment positioning holes 1104 and the second equipment positioning holes 2002 correspond one-to-one.

[0065] In this embodiment, the marking of the collector plate 1 and the welding of the collector plate 1 to the pole post 2 can be performed sequentially by flipping the integrated device. The opening of the first device positioning hole 1104 and the second device positioning hole 2002 can be used to position the integrated device before and after flipping. Correspondingly, the external welding equipment and the marking equipment are respectively provided with support seats for supporting the integrated device. The support seats are provided with two positioning posts corresponding to the first device positioning hole 1104 (second device positioning hole 2002) at intervals. The positioning posts pass through the first device positioning hole 1104 and the second device positioning hole 2002 to realize the positioning of the integrated device.

[0066] In order to improve the assembly efficiency of the integrated device with the positioning pins on the external welding equipment and marking equipment, this embodiment designs one of the two first device positioning holes 1104 as an oblong hole, and the second device positioning hole 2002 corresponding to the first device positioning hole 1104 is also designed as an oblong hole.

[0067] Furthermore, the base 100 in this embodiment also has two handles 190, and a handle 190 is fixed at each end of the base body 110 along its length direction.

[0068] By providing a handle 190 at each end of the base body 110 along its length, the integrated device can be easily flipped, thus improving the flipping efficiency of the integrated device.

[0069] Among them, such as Figure 7 and Figure 8 As shown, the cover plate 200 includes a cover plate body 210 and a pressure claw 220. The cover plate body 210 is locked to the base body 110 by a locking structure 300. The cover plate body 210 has a second through hole 2001 extending through it along its thickness direction. The pressure claw 220 is located on the side of the cover plate body 210 facing the base 100. One end of the pressure claw 220 is connected to the cover plate body 210, and the other end extends into the second through hole 2001 to abut against the collector plate 1. The welding area A of the collector plate 1 and the pole post 2 is exposed outside the pressure claw 220.

[0070] In this embodiment, after the cover plate body 210 is locked and fixed to the base body 110 by the locking structure 300, the pressure claw 220 presses the collector plate 1 against the first positioning groove 1101 and makes the collector plate 1 abut against the pole post 2 to improve welding stability.

[0071] For example, in a 2*6 distribution of positioning structures, the cover plate body 210 has multiple second through holes 2001 along its length, and the second through holes 2001 are designed as elongated structures. The length of the second through hole 2001 extends along the width of the cover plate body 210 to the edge adjacent to the cover plate body 210. Each second through hole 2001 has a pressure claw 220 fixed at both ends along its length. The two pressure claws 220 extend into the second through hole 2001 and abut against a collector plate 1 respectively. In this embodiment, the 12 pressure claws 220 are used to fix and press the collector plate 1. The pressure claws 220 are made of pure copper, which can improve their service life.

[0072] For the marking of the current collector and the welding of the current collector to the electrode post, the traditional separate marking and welding structure requires two clamping operations. However, the integrated device of this embodiment can achieve a single clamping operation and complete both processes through flipping, eliminating repeated positioning errors (accuracy improved to ±0.03mm), improving product yield, and saving labor and device manufacturing costs. Compared with the prior art, the integrated device of this embodiment can reduce the product production speed from 12s / piece to 7s / piece, improving efficiency by more than 40%.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An integrated apparatus for laser marking of current collector plate and welding of pole, characterized in that, The device includes a base, a cover plate, and a locking structure. The base has several sets of positioning structures for positioning the collector plate and the electrode post. The cover plate is fastened to the base and locked by the locking structure so that the collector plate abuts against the side of the electrode post facing the cover plate. The base has a first through hole extending through its thickness direction, exposing the marking area of ​​the collector plate. The first through hole is offset from the electrode post. The cover plate has a second through hole extending through its thickness direction, exposing the welding area between the electrode post and the collector plate.

2. The integrated device for laser marking of current collector plate and welding of pole according to claim 1, characterized in that, The base also has a base body, which can be locked to the cover plate by the locking structure; the positioning structure includes a first positioning groove and a second positioning groove, the first positioning groove is provided on the side of the base body facing the cover plate, the bottom of the first positioning groove is provided with the second positioning groove and the first through hole spaced apart, the pole post is disposed in the second positioning groove, and the collector plate is disposed in the first positioning groove and located on the side of the pole post facing the cover plate; one side of the first positioning groove passes through the edge of the base body to form an opening for the collector plate to pass through.

3. The integrated device for laser marking of current collector plate and welding of pole according to claim 2, characterized in that, The positioning structure further includes a positioning platform and an elastic part. The positioning platform is located in the second positioning groove and can move along the axis of the second positioning groove. Therefore, the elastic part is located in the second positioning groove, and one end of the elastic part abuts against the positioning platform and the other end abuts against the bottom of the second positioning groove. The positioning platform has a first stepped hole coaxial with the second positioning groove at one end facing the cover plate, and the pole is inserted into the first stepped hole.

4. The integrated device for laser engraving of current collector plate and welding of pole as claimed in claim 3, wherein, The base also has a fixing block. The base body has an installation groove on the side away from the cover plate. The fixing block is fixed in the installation groove. The side of the fixing block facing the positioning platform is the bottom of the second positioning groove. One end of the elastic part abuts against the positioning platform, and the other end abuts against the fixing block. The positioning platform has a limiting protrusion on its outer periphery. The limiting protrusion is adjacent to the end of the positioning platform facing the fixed block. The groove wall of the second positioning groove has a limiting step that cooperates with the limiting protrusion. The elastic part makes the positioning platform always have a tendency to move away from the fixed block.

5. The integrated device for laser engraving of current collector plate and welding of pole as claimed in claim 2, wherein, The positioning structure further includes a first positioning pin, a second positioning pin, and at least two spring pins. The first positioning pin is embedded in the groove wall of the first positioning groove and partially protrudes from the side wall of the first positioning groove. The second positioning pin is fixed to the bottom of the first positioning groove and is located at the center of the opening of the first positioning groove. All the spring pins are spaced apart at the bottom of the first positioning groove.

6. The integrated device for laser marking and electrode welding of the manifold as described in claim 2, characterized in that, The base also has multiple height limiting posts. The base body has multiple fixing grooves on the side facing the cover plate that correspond one-to-one with the height limiting posts. The fixing grooves are located on the edge of the base body and are offset from the positioning structure. The height limiting posts are threaded to the bottom of the fixing grooves. One end of the height limiting post that is away from the bottom of the fixing groove protrudes from the base body and abuts against the cover plate.

7. The integrated device for laser marking and electrode welding of a manifold according to any one of claims 2 to 6, characterized in that, The locking structure includes a locking block, a screw, a locking pin, and a locking nut. A locking block is installed at each of the two opposite corners of the base body. Each locking block has an inverted T-shaped groove with its opening facing the cover plate. One end of the screw passes through the cover plate and is screwed onto the locking nut. The other end of the screw is perpendicularly connected to the locking pin in a cross-shaped structure. The locking nut is located on the side of the cover plate away from the base. The locking pin can be inserted into the inverted T-shaped groove. Tightening the screw allows the locking pin to engage with the inverted T-shaped groove, and the locking nut can be tightened until it abuts against the cover plate.

8. The integrated apparatus for laser marking of current collector plate and welding of pole according to any one of claims 2 to 6, characterized in that, It also includes at least two third positioning pins and positioning pin holes corresponding to the third positioning pins. The positioning pin holes are provided on one of the cover plate and the base body, and the third positioning pins are provided on the other. The third positioning pins are inserted into the positioning pin holes.

9. The integrated apparatus for laser engraving of current collector plate and welding of pole as claimed in any one of claims 2 to 6, wherein, The base body has a first device positioning hole at each end along its length, and the first device positioning hole penetrates along the thickness direction of the base body; the cover plate has a second device positioning hole at each end along its length, and the second device positioning hole penetrates along the thickness direction of the cover plate; the first device positioning hole and the second device positioning hole correspond one-to-one.

10. The integrated apparatus for laser engraving of current collector plate and welding of pole as claimed in any one of claims 2 to 6, wherein, The cover plate includes a cover plate body and a pressure claw. The cover plate body is locked to the base body by the locking structure. The cover plate body has a second through hole through it along its thickness direction. The pressure claw is located on the side of the cover plate body facing the base. One end of the pressure claw is connected to the cover plate body, and the other end extends into the second through hole to abut against the current collector. The welding area of ​​the current collector and the pole is exposed on the pressure claw.

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