A terminal ear bending device

Abstract

The present invention provides a tab bending device, including an X-axis servo slide, a Z-axis servo slide, a Y-axis servo slide, a clamping portion, and a bending portion. The X-axis servo slide is slidably connected to the Z-axis servo slide; the Z-axis servo slide is slidably connected to the Y-axis servo slide; the clamping portion is movably connected to the X-axis servo slide; and the bending portion is movably connected to the clamping portion. The positions of the clamping portion and the bending portion are roughly adjusted by the X, Y, and Z-axis servo slides. Since the clamping portion and the X-axis servo slide are movably connected, the positions of the clamping portion and the bending portion can be precisely adjusted. When bending, the clamping portion presses the tab, and then the tab is bent by the bending portion. This ensures that the root of the tab does not deviate or deform when the tab is bent, and the suspended end is bent thoroughly without causing a large rebound problem.

Description

[Technical field]

[0001] The invention relates to the technical field of tab processing of a battery module, and in particular to a tab bending device. [Background technology]

[0002] The existing production process of battery modules is to load the batteries and perform pretreatment, stack the cells after pretreatment, flip the stacked cells over and transfer them to the assembly line, transfer them to the tab bending station for tab bending, and then roll them flat after bending. The flattened cell module is laser welded and unloaded after passing the inspection after welding.

[0003] Among them, in the process of bending the battery cell tab, the traditional operation is generally to position it through a clamp, and then bend the tab through a bending mechanism. However, the existing tab bending adopts a floating crimping method. The tab is not clamped or compressed during the bending process, but is in a floating state. When the tab is bent, the root is offset and deformed, and the bending of the suspended end is not complete, resulting in a large springback problem, resulting in the inability to guarantee the bending shape, large errors, and low pass rate, which affects the subsequent welding accuracy, increases the defective rate, and causes losses to the company. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a tab bending device, which can press the tab by a pressing part to prevent deviation and improve the bending accuracy.

[0005] The present invention is implemented as follows: a tab bending device, comprising

[0006] X-axis servo slide,

[0007] A Z-axis servo slide, the X-axis servo slide is slidably connected to the Z-axis servo slide;

[0008] A Y-axis servo slide, the Z-axis servo slide is slidably connected to the Y-axis servo slide;

[0009] A clamping portion, the clamping portion being movably connected to the X-axis servo slide;

[0010] A bending portion is movably connected to the pressing portion.

[0011] Furthermore, it also includes a visual device, which is fixedly connected to the pressing part.

[0012] Furthermore, the pressing portion includes

[0013] A first bottom plate, the first bottom plate is connected to the X-axis servo slide;

[0014] A second bottom plate, the second bottom plate is slidably connected to the first bottom plate along the Y-axis direction;

[0015] An adapter plate, one side of which is provided with an embedding groove; the adapter plate is vertically and fixedly connected to the second bottom plate;

[0016] A first driving fixing plate, the first driving fixing plate is vertically and fixedly embedded in the embedding groove;

[0017] A clamping drive device, the clamping drive device comprising a first fixed portion and a first movable portion movably connected to each other; the first movable portion is fixedly connected to the first driving fixed plate; the first movable portion moves along the X-axis direction;

[0018] A pressing piece, wherein the pressing piece is fixedly connected to the first fixing portion.

[0019] Furthermore, it also includes

[0020] A first sliding block; the first sliding block is fixedly connected to the first fixing portion;

[0021] The first slide rail, the first slider is slidably connected to the first slide rail; the first slide rail is fixedly connected to the first driving fixed plate; the first slide rail and the first slider are arranged along the X-axis direction.

[0022] Furthermore, it also includes

[0023] A second slider, the second slider is fixedly connected to the second bottom plate, and the second slider is arranged along the Y-axis direction;

[0024] A second slide rail, the second slide rail is fixedly connected to the first bottom plate and arranged along the Y-axis direction; the second slider is slidably connected to the second slide rail;

[0025] An adapter block, the adapter block is fixedly connected to the second bottom plate;

[0026] There are two adjusting members, the two adjusting members are symmetrical and movably connected to the two sides of the adapter block, and the two adjusting members move along the Y-axis direction;

[0027] A stop block, the stop block is fixedly connected to the first bottom plate, and the two adjusting members correspondingly abut against two sides of the stop block;

[0028] A photoelectric sensor, wherein there are two photoelectric sensors, and the two photoelectric sensors are symmetrically arranged on both sides of the stop block;

[0029] There are two light shielding sheets, which are symmetrical and fixedly connected to the connecting block; each light shielding sheet shields or does not shield the light of the photoelectric sensor on the same side as the connecting block moves.

[0030] Furthermore, the bending portion includes

[0031] A bending drive device, the bending drive device comprising a second fixed portion and a second movable portion movably connected to each other; the second movable portion slides along the Y-axis direction;

[0032] A bending member, wherein the bending member is fixedly connected to the second movable portion;

[0033] The second driving fixing plate, the first fixing portion, the second fixing portion and the pressing member are respectively fixedly connected to the second driving fixing plate, and the second fixing portion is located between the first fixing portion and the pressing member.

[0034] Furthermore, it also includes a third slider and a third slide rail, the third slider is slidably connected to the third slide rail; the third slider is fixedly connected to the bending member; the third slide rail is fixedly connected to the clamping member; the third slider and the third slide rail are arranged along the Y-axis direction.

[0035] Furthermore, there are two of each of the first driving fixing plate, the clamping driving device, the clamping member, the bending driving device, the second driving fixing plate, and the bending member, and they are arranged symmetrically.

[0036] Furthermore, the visual device is fixedly connected to the second base plate, and the visual device is arranged along the X-axis direction.

[0037] The advantages of the present invention are as follows: a tab bending device of the present invention comprises an X-axis servo slide, a Z-axis servo slide, a Y-axis servo slide, a clamping portion and a bending portion, wherein the X-axis servo slide is slidably connected to the Z-axis servo slide; the Z-axis servo slide is slidably connected to the Y-axis servo slide; the clamping portion is movably connected to the X-axis servo slide; and the bending portion is movably connected to the clamping portion. The positions of the clamping portion and the bending portion are roughly adjusted by the X, Y, and Z-axis servo slides. Since the clamping portion and the X-axis servo slide are movably connected, the positions of the clamping portion and the bending portion can be precisely adjusted. When bending, the clamping portion presses the tab, and then the tab is bent by the bending portion. This ensures that the root of the tab does not deviate or deform when the tab is bent, and the suspended end is bent thoroughly without causing a large rebound problem.

Brief Description of the Drawings

[0038] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0039] Figure 1 It is a stereoscopic diagram of the tab bending device.

[0040] Figure 2 and Figure 3 It is a partial schematic diagram of the bending portion, the pressing portion, and the visual device described in the present invention.

[0041] Figures 4 to 6 It is an exploded schematic diagram of the bending portion, the pressing portion, and the visual device described in the present invention.

[0042] Figure 7 It is a schematic diagram of the position and movement relationship of the bending member, the pressing member and the tab during bending described in the present invention.

[0043] Figure 8 It is a schematic diagram of the effect of the tab bending device described in the present invention being installed on a production line.

[0044] Fig. 9 It is a stereoscopic diagram of the X-axis servo slide, the Y-axis servo slide, and the Z-axis servo slide described in the present invention.

[0045] Fig.10 and Fig.11 It is an exploded view of the first driving fixed plate, the clamping driving device, and the second driving fixed plate described in the present invention.

[0046] Description of reference numerals:

[0047] The tab bending device 100,

[0048] X-axis servo slide 1, X-axis slider 11, first motor 12, X-axis support seat 13;

[0049] Z-axis servo slide 2, Z-axis slider 21, second motor 22, Z-axis support seat 23;

[0050] Y-axis servo slide 3, Y-axis slider 31, third motor 32, Y-axis support seat 33;

[0051] The clamping part 4, the first bottom plate 41, the second bottom plate 42, the adapter plate 43, the engaging groove 431, the first driving fixing plate 44, the clamping driving device 45, the first fixing part 451, the first movable part 452, and the clamping member 46;

[0052] Bending portion 5, bending driving device 51, second fixing portion 511, second movable portion 512, bending member 52, second driving fixing plate 53;

[0053] Visual device 6;

[0054] A first sliding block 71, a first sliding rail 72;

[0055] A second sliding block 81, a second sliding rail 82, a transfer block 83, an adjusting member 84, a stop block 85, a photoelectric sensor 86, and a light shielding sheet 87;

[0056] A third sliding block 91, a third sliding rail 92;

[0057] Rolling mechanism 200;

[0058] Transport fixture 300;

[0059] Battery module 400 , tab 401 , and mounting slot 402 . [Specific implementation method]

[0060] In the description of the present invention, it is necessary to understand that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 limiting the scope of protection of the present invention.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of 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.

[0062] The overall concept of the present invention is as follows: the positions of the clamping part 4 and the bending part 5 are roughly adjusted by the X, Y, and Z axis servo slides. Since the clamping part 4 and the X axis servo slide 1 are movably connected, the positions of the clamping part 4 and the bending part 5 can be precisely adjusted. When bending, the clamping part presses the tab 401, and then the tab 401 is bent by the bending part 5. This ensures that the root of the tab 401 does not deviate or deform when it is bent, and the suspended end is completely bent without causing a large rebound problem.

[0063] See also Figures 1 to 11 shown.

[0064] For ease of observation, Figure 3 and Figure 6 One shading sheet 87 is omitted on the middle right side, and the two shading sheets 87 are symmetrically arranged. Figure 4 In the figure, for the convenience of observation, the clamping part, bending part and related driving parts on the left are omitted.

[0065] Embodiment 1:

[0066] A tab bending device 100 of the present invention comprises:

[0067] An X-axis servo slide 1, used for adjusting the positions of the pressing portion 4 and the bending portion 5 on the X-axis;

[0068] The Z-axis servo slide 2 is used to adjust the Z-axis position of the X-axis servo slide 1, thereby adjusting the positions of the clamping portion 4 and the bending portion 5 on the Z-axis; the X-axis servo slide 1 is slidably connected to the Z-axis servo slide 2;

[0069] The Y-axis servo slide 3, the Z-axis servo slide 2 is slidably connected to the Y-axis servo slide 3; used to adjust the Y-axis position of the Z-axis servo slide 3, and then adjust the Y-axis position of the X-axis servo slide 1, and finally adjust the positions of the clamping part 4 and the bending part 5 on the Y-axis;

[0070] The clamping part 4 is movably connected to the X-axis servo slide 1, and the movable connection allows the clamping part 4 to further accurately adjust the positions of the clamping part 4 and the bending part 5; the clamping part 4 is used to press the pole ear 401, so as to ensure that the root of the pole ear 401 does not deviate and deform when it is bent, and the suspended end is bent completely without causing a large rebound problem.

[0071] The bending portion 5 is movably connected to the pressing portion 4. The two are movably connected so that the positions of the bending portion 5 and the pressing portion 4 can be adjusted simultaneously and the bending portion 5 can move relative to the pressing portion 4 to bend. The bending portion 5 is used to bend the tab 401.

[0072] Working principle: first move the clamping part 4 and the bending part 5 to the approximate position through the X-axis servo slide 1, the Z-axis servo slide 2, and the Y-axis servo slide 3, and then adjust the X-axis servo slide 1 to slide forward and stop at the approximate position. Since the clamping part 4 and the X-axis servo slide 1 are movably connected, the clamping part 4 is adjusted to be precisely adjusted so that the clamping part 4 clamps the pole ear, and then the bending part 5 moves relative to the clamping part 4, and the bending part 5 moves along the Y-axis to perform the bending action.

[0073] Embodiment 2: Based on Embodiment 1:

[0074] It also includes a visual device 6, which is fixedly connected to the clamping part 4. The visual device 6 is used to photograph and identify the position of the battery module to be bent and the tab 401 thereon, which is convenient for automated production and adapts to the bending process of the tab 401 of different types of battery modules. The visual device 6 is an existing device, for example, the model is: Cognex type A GigEC-Mount v02-ACD-9999. In a specific implementation, the visual device 6, the X-axis servo slide 1, the Z-axis servo slide 2, the Y-axis servo slide 3, the clamping part 4 and the bending part 5 can be connected to the control system on the production line, and the control system can use an existing PLC to achieve unified control and automated processing.

[0075] Embodiment 3: Based on Embodiment 1 or Embodiment 2:

[0076] The pressing part 4 includes

[0077] The first bottom plate 41 is connected to the X-axis servo slide 1 ; the first bottom plate 41 serves as a transition part, so as to adjust the X-axis position of the clamping part 4 through the X-axis servo slide 1 .

[0078] A second bottom plate 42, which is slidably connected to the first bottom plate 41 along the Y-axis direction and is used to finely adjust the position of the pressing member 46 to make the pressing position more accurate;

[0079] The adapter plate 43 has an embedding groove 431 on one side thereof; the adapter plate 43 is vertically and fixedly connected to the second bottom plate 42, and the embedding manner of the two can enhance the stability and accuracy of the mechanism. In a specific implementation, the two are also locked and fixed by bolts.

[0080] A first driving fixing plate 44, wherein the first driving fixing plate 44 is vertically and fixedly embedded in the embedding groove 431;

[0081] The clamping drive device 45 includes a first fixed portion 451 and a first movable portion 452 that are movably connected to each other; the first movable portion 452 is fixedly connected to the first driving fixed plate 44; the first movable portion 452 moves along the X-axis direction; in a specific implementation, for example, the clamping drive device 45 can use actuators such as a cylinder and a hydraulic cylinder. For example, when the clamping drive device 45 uses a cylinder, the first fixed portion 451 is the cylinder body of the cylinder, and the first movable portion 452 is the piston rod of the cylinder. At the same time, the cylinder purchased on the market is equipped with a position sensor for controlling the stroke of the piston rod.

[0082] The clamping member 46 is fixedly connected to the first fixing portion 451. The clamping member 46 is used to clamp the pole lug 401. In a specific implementation, the clamping member 46 can be made into various shapes. In order to improve the clamping effect, in a specific implementation, the clamping member 46 and the pole lug 401 can be clamped in a face-to-face contact manner, and the clamping member 46 has a clamping plane; of course, a line-surface manner can also be used for clamping, for example, the clamping surface of the clamping member 46 is an arc surface, and is in tangential contact with the pole lug 401. Of course, other methods such as multi-point contact clamping can also be used for clamping.

[0083] Also includes

[0084] A first sliding block 71; the first sliding block 71 is fixedly connected to the first fixing portion 451;

[0085] The first slide rail 72, the first slider 71 is slidably connected to the first slide rail 72; the first slide rail 72 is fixedly connected to the first driving fixed plate 44; the first slide rail 72 and the first slider 71 are arranged along the X-axis direction. The movement of the clamping drive device 45 is guided by the first slider 71 and the first slide rail 72 to improve the movement accuracy.

[0086] like Figures 3 to 6 As shown, it also includes

[0087] A second slider 81, wherein the second slider 81 is fixedly connected to the second bottom plate 42, and the second slider 81 is arranged along the Y-axis direction;

[0088] The second slide rail 82 is fixedly connected to the first base plate 41, and the second slide rail 82 is arranged along the Y-axis direction; the second slider 81 is slidably connected to the second slide rail 82; the fine adjustment movement of the second base plate 42 is guided by the second slider 81 and the second slide rail 82 to improve the movement accuracy.

[0089] An adapter block 83, wherein the adapter block 83 is fixedly connected to the second bottom plate 41;

[0090] There are two adjusting members 84, which are symmetrical and movably connected to the two sides of the adapter block 83, and the two adjusting members 84 move along the Y-axis direction; the adjusting member 84 is used to accurately adjust the Y-axis position of the adapter block 83, and the adjusting member 84 adopts an existing floating plunger, such as model: PJH6-5, which is connected to the adapter block 83 through a thread. When adjusting, the two adjusting members 84 are rotated to adjust the position.

[0091] The stop block 85 is fixedly connected to the first bottom plate 41, and the two adjusting members 84 correspondingly abut against two sides of the stop block 85; the stop block 85 is used to abut against the adjusting member 84 to facilitate the adjusting member 84 to be subjected to force, thereby adjusting the position.

[0092] A photoelectric sensor 86, wherein there are two photoelectric sensors 86, and the two photoelectric sensors 86 are symmetrically arranged on both sides of the stop block 85;

[0093] There are two light shielding sheets 87, which are symmetrical and fixedly connected to the connecting block 83; each light shielding sheet 87 shields or does not shield the light of the photoelectric sensor 86 on the same side as the connecting block 83 moves. The light shielding sheets 87 correspond to the sensors 86 one by one, and are used to detect the position deviation of the adapter block 83, so as to accurately adjust the position of the adapter block 83, and finally realize the accurate adjustment of the position of the pressing member 46.

[0094] Due to manufacturing errors in various components and assembly errors during assembly, it is easy to cause the position accuracy adjustment of the clamping member 46 to be not precise enough. If the clamping member 46 and the first base plate 41 are directly fixedly connected, it is difficult to eliminate these manufacturing errors and assembly errors. Therefore, the purpose of setting the second base plate 42, the second slider 81, the second slide rail 82, the photoelectric sensor 86, the shading sheet 87, and the adjusting member 84 in the present invention is to eliminate the manufacturing errors and assembly errors of the components and further improve the position adjustment accuracy.

[0095] The adjustment principle is: Figure 3 As shown, when the left shading sheet 87 blocks the left photoelectric sensor 86, the signal of the left pipeline sensor 86 is interrupted, indicating that the clamping member 46 is offset to the left, and the adjusting member 84 needs to be adjusted to adjust the position of the adapter block 83 to the right, thereby adjusting the position of the clamping member 46 to the right; conversely, when the right shading sheet 87 blocks the right photoelectric sensor 86, the clamping member 46 is offset to the right, and its position needs to be adjusted to the left. Finally, the clamping member 46 is adjusted to the middle position, that is, the photoelectric sensors 46 on both sides are not blocked.

[0096] The bending portion 5 includes

[0097] The bending drive device 51 includes a second fixed portion 511 and a second movable portion 512 that are movably connected to each other; the second movable portion 512 slides along the Y-axis direction; in a specific implementation, the bending drive device 51 can be an actuator such as a cylinder or a hydraulic cylinder. For example, when a cylinder is used, the second fixed portion 511 is the cylinder body of the cylinder, and the second movable portion 512 is the piston rod of the cylinder. At the same time, the cylinder purchased on the market is equipped with a position sensor for controlling the stroke of the piston rod.

[0098] The bending member 52 is fixedly connected to the second movable portion; the bending member 52 moves along the Y-axis to perform a bending operation, and the pressing member 46 presses the side surface of the tab in the X-axis direction.

[0099] The second driving fixing plate 53 , the first fixing portion 451 , the second fixing portion 511 , and the pressing member 46 are fixedly connected to the second driving fixing plate 53 , respectively, and the second fixing portion 511 is located between the first fixing portion 451 and the pressing member 46 .

[0100] like Figure 6As shown, the third slider 91 and the third slide rail 92 are also included. The third slider 91 is slidably connected to the third slide rail 92; the third slider 92 is fixedly connected to the bending member 52; the third slide rail 92 is fixedly connected to the pressing member 46; the third slider 91 and the third slide rail 92 are arranged along the Y-axis direction. The third slider 91 and the third slide rail 92 are used to guide the movement of the bending drive device 51 to improve the movement accuracy.

[0101] There are two of each of the first driving fixing plate 44 , the pressing driving device 45 , the pressing member 46 , the bending driving device 51 , the second driving fixing plate 53 , and the bending member 52 , and they are arranged symmetrically.

[0102] The visual device 6 is fixedly connected to the second bottom plate 42 , and the visual device 6 is arranged along the X-axis direction, and faces the same direction as the pressing member 46 .

[0103] The X-axis servo slide 1, the Y-axis servo slide 3, and the Z-axis servo slide 2 are all existing standard parts and can be purchased directly on the market. In a specific embodiment: the model of the X-axis servo slide is: 60D-L10-S150-M2-M100W; the model of the Z-axis servo slide 2 is: 80D-L10-S150-M6-P200W; the model of the Y-axis servo slide 3 is: 136D-L10-S850-M4-P400W. The three have the same structure, and the difference is that the size is different. All three have built-in position sensors.

[0104] In terms of structure: both use motors to drive the screw-nut pair, which in turn drives the slider to slide.

[0105] The X-axis servo slide 1 includes an X-axis support seat 13, two X-axis slide blocks 11, two X-axis slide rails (not shown), an X-axis lead screw (not shown), a first nut (not shown) and a first motor 12;

[0106] The two X-axis slide rails are parallel and fixedly connected to the X-axis support seat 13;

[0107] The two X-axis sliders 11 are slidably connected to the two X-axis slide rails in a one-to-one correspondence; the two X-axis sliders 11 are fixedly connected to the first bottom plate 41;

[0108] The X-axis screw is rotatably connected to the X-axis support seat 13; the X-axis screw is fixedly connected to the output shaft of the first motor 12; the first motor 12 is fixedly connected to the X-axis support seat 13;

[0109] The first nut is fixedly connected to the two X-axis sliders 11; the first nut is also sleeved on the X-axis screw rod through a thread;

[0110] The Z-axis servo slide 2 includes a Z-axis support seat 23, two Z-axis slide blocks 21, two Z-axis slide rails (not shown), a Z-axis lead screw (not shown), a second nut (not shown) and a second motor 22;

[0111] The two Z-axis slide rails are parallely and fixedly connected to the Z-axis support seat 23;

[0112] The two Z-axis sliders 21 are slidably connected to the two Z-axis slide rails in a one-to-one correspondence; the two Z-axis sliders 21 are fixedly connected to the X-axis support seat 13;

[0113] The Z-axis screw is rotatably connected to the Z-axis support seat 23; the Z-axis screw is fixedly connected to the output shaft of the second motor 22; the second motor 22 is fixedly connected to the Z-axis support seat 23;

[0114] The second nut is fixedly connected to the two Z-axis sliders 22; the second nut is also locked into the Z-axis screw rod through a thread;

[0115] The Y-axis servo slide 3 includes a Y-axis support seat 33, two Y-axis sliders 31, two Y-axis slide rails (not shown), a Y-axis lead screw (not shown), a third nut (not shown) and a third motor 32;

[0116] The two Y-axis slide rails are parallely and fixedly connected to the Y-axis support seat 33;

[0117] The two Y-axis sliders 31 are slidably connected to the two Y-axis slide rails in a one-to-one correspondence; the two Y-axis sliders 31 are fixedly connected to the Z-axis support seat 23;

[0118] The Y-axis screw is rotatably connected to the Y-axis support seat 33; the Y-axis screw is fixedly connected to the output shaft of the third motor 32; the third motor 32 is fixedly connected to the Y-axis support seat 33;

[0119] The third nut is fixedly connected to the two Y-axis sliders 31 ; the third nut is also locked into the Y-axis screw rod through a thread.

[0120] Specific usage:

[0121] The tab bending device 100 is installed on the production line, the tab 401 is inserted into the mounting groove 402 on the battery module in advance, and the battery module 400 is transported on the conveyor line 500 through the original transport fixture 300, transported to a predetermined position, and bent by the tab bending device 100.

[0122] The bending drive device 51 and the pressing drive device 45 both adopt cylinders.

[0123] There are two groups of bending members 52 and pressing members 46, which are symmetrically arranged. They are selected according to the number of tabs 401 and the bending direction, and then the processing trajectory is preset.

[0124] The visual device 6, the first motor 12, the second motor 22, the bending drive device 51, the clamping drive device 45, the third motor 32, the photoelectric sensor 86, and the conveying device are all connected to the PLC and are uniformly controlled by the PLC. For example, the model of the PLC is: 6ES7516-3AN01-0AB0. The motors of the X-axis servo slide 1, the Y-axis servo slide 3, and the Z-axis servo slide 2 are also equipped with position sensors, which are respectively connected to the PLC. The position sensors equipped on the bending drive device 51 and the clamping drive device 45 are also connected to the PLC.

[0125] The machining trajectory is set in advance, and the motion trajectory of the X-axis servo slide 1, the Y-axis servo slide 3, the Z-axis servo slide 2, the clamping member 46, and the bending member 52 is predetermined. When setting the trajectory in advance, due to the manufacturing errors of each component and the assembly errors in the assembly process, the clamping member 46 is adjusted in advance by debugging, that is, it is between the two photoelectric sensors 86, and the two light shielding sheets 87 do not cover the corresponding photoelectric sensors 86. This makes the movement more stable and the position adjustment more accurate during the bending process.

[0126] Centering adjustment method: When the left shading sheet 87 blocks the left photoelectric sensor 86, the signal of the left pipeline sensor 86 is interrupted, and the PLC issues an alarm prompt that the signal of the left photoelectric sensor 86 is interrupted. It is necessary to adjust the two adjusting members 84 to adjust the position of the adapter block 83 to the right, thereby adjusting the position of the pressing member 46 to the right; conversely, when the right shading sheet 87 blocks the right photoelectric sensor 86, the PLC issues an alarm prompt that the signal of the right photoelectric sensor 86 is interrupted, and it is necessary to adjust its position to the left. Finally, the pressing member 46 is adjusted to the middle position, that is, the photoelectric sensors 46 on both sides are not blocked.

[0127] The motion trajectories of the X, Y, and Z axis servo slides are preset so that the clamping member 46 and the bending member 52 are roughly adjusted to the vicinity of the tab 401. Then the clamping drive device 45 is preset to move along the X axis, driving the clamping member 46 to move along the X axis, extending into the installation slot 402, and just clamping the side of the tab 401; and the bending drive device 51 is preset to move along the Y axis, driving the bending member 52 to push the suspended end of the tab to bend.

[0128] Specific bending motion trajectory:

[0129] The tab bending device 100 and the rolling mechanism 200 are placed on both sides of the assembly line, so as to facilitate the bending and flattening of the tabs on both sides of the module at the same time, thereby improving efficiency. The rolling mechanism 200 can adopt an existing one or design a new one.

[0130] It is set in the processing order of bending first and then rolling. The PLC controls the conveying device to convey the transport jig 300 carrying the battery module 400 and the tab 401 to the predetermined bending station for bending according to the predetermined program; during bending, after visual photography, feedback is given to the PLC, and the PLC controls the first motor 12, the second motor 22, and the third motor 32 to work according to the predetermined program, and the X, Y, and Z axis servo slides are first moved to the predetermined position, and then the clamping drive device 45 slides forward along the X axis to the predetermined position, so that the clamping member 46 extends into the installation groove 402 to clamp the tab 401; then the bending drive device moves forward along the Y axis to perform the bending action; after bending, the battery module flows to the rolling mechanism 200 to perform the rolling process after the tab is bent, and then flows to other stations after the rolling is completed.

[0131] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A tab bending device, characterized in that: include X-axis servo slide, A Z-axis servo slide, the X-axis servo slide is slidably connected to the Z-axis servo slide; A Y-axis servo slide, the Z-axis servo slide is slidably connected to the Y-axis servo slide; A clamping portion, the clamping portion being movably connected to the X-axis servo slide; A bending portion, the bending portion being movably connected to the pressing portion; A visual device, the visual device is fixedly connected to the pressing portion; The pressing portion includes A first bottom plate, the first bottom plate is connected to the X-axis servo slide; A second bottom plate, the second bottom plate is slidably connected to the first bottom plate along the Y-axis direction; An adapter plate, one side of which is provided with an embedding groove; the adapter plate is vertically and fixedly connected to the second bottom plate; A first driving fixing plate, the first driving fixing plate is vertically and fixedly embedded in the embedding groove; A pressing drive device, the pressing drive device comprising a first fixed portion and a first movable portion movably connected to each other; the first movable portion is fixedly connected to the first driving fixed plate; The first movable part moves along the X-axis direction; A pressing member, the pressing member is fixedly connected to the first fixing portion; Also includes A first sliding block; the first sliding block is fixedly connected to the first fixing portion; a first slide rail, the first slider being slidably connected to the first slide rail; the first slide rail being fixedly connected to the first driving fixed plate; the first slide rail and the first slider being arranged along the X-axis direction; Also includes A second slider, the second slider is fixedly connected to the second bottom plate, and the second slider is arranged along the Y-axis direction; A second slide rail, the second slide rail is fixedly connected to the first bottom plate and arranged along the Y-axis direction; the second slider is slidably connected to the second slide rail; An adapter block, the adapter block is fixedly connected to the second bottom plate; There are two adjusting members, the two adjusting members are symmetrical and movably connected to the two sides of the adapter block, and the two adjusting members move along the Y-axis direction; A stop block, the stop block is fixedly connected to the first bottom plate, and the two adjusting members correspondingly abut against two sides of the stop block; A photoelectric sensor, wherein there are two photoelectric sensors, and the two photoelectric sensors are symmetrically arranged on both sides of the stop block; There are two light shielding sheets, which are symmetrical and fixedly connected to the connecting block; each light shielding sheet shields or does not shield the light of the photoelectric sensor on the same side as the connecting block moves.

2. A tab bending device according to claim 1, characterized in that: The bending portion includes A bending drive device, the bending drive device comprising a second fixed portion and a second movable portion movably connected to each other; The second movable part slides along the Y-axis direction; A bending member, wherein the bending member is fixedly connected to the second movable portion; The second driving fixing plate, the first fixing portion, the second fixing portion and the pressing member are respectively fixedly connected to the second driving fixing plate, and the second fixing portion is located between the first fixing portion and the pressing member.

3. A tab bending device as claimed in claim 2, characterized in that: It also includes a third slider and a third slide rail, wherein the third slider is slidably connected to the third slide rail; the third slider is fixedly connected to the bending member; the third slide rail is fixedly connected to the clamping member; and the third slider and the third slide rail are arranged along the Y-axis direction.

4. A tab bending device as claimed in claim 2, characterized in that: There are two of each of the first driving fixed plate, the clamping driving device, the clamping member, the bending driving device, the second driving fixed plate, and the bending member, and they are arranged symmetrically.

5. A tab bending device as claimed in claim 2, characterized in that: The visual device is fixedly connected to the second bottom plate, and the visual device is arranged along the X-axis direction.

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