Battery piece skew adjusting device

Abstract

The utility model relates to the technical field of battery piece processing, and discloses a battery piece skew adjusting device which comprises at least one adjusting unit, and each adjusting unit comprises a box body, a motor, a transmission unit, an air pump, a cavity, a first air pipe, a second air pipe, a telescopic unit and a suction cup. The motor and the air pump are arranged in the box body, the transmission unit is arranged at the upper end of the box body, the power output end of the motor is connected with the cavity through the transmission unit, the cavity is provided with a first connector and a second connector, a cavity is formed in the cavity, one end of the first air pipe is connected with the air pump, and the other end of the first air pipe is connected with the first connector. The telescopic unit is installed on one side of the cavity, the telescopic end of the telescopic unit is connected with the suction cup, the suction cup is located at the lower end of the cavity and comprises a gas channel, a cup body and a rotating motor, the output end of the rotating motor is connected with the cup body, the gas channel is formed in the cup body, and the second connector is connected with the gas channel through a second gas pipe. The series welding machine solves the problem that the production efficiency is low due to skew of the battery pieces in an existing series welding machine.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell processing, and in particular to a battery cell skew adjustment device. Background Art

[0002] The main function of the Maverick stringing machine is to cut the battery cells and connect them in series. In the actual production process, the battery cells may be skewed due to unstable alignment of the battery cells or wear of the guide pillars. The translation alignment mechanism included in the Maverick stringing machine only realizes translation adjustment and cannot automatically adjust the battery cells that are skewed at a small angle. The existing method is to add a visual module and activate the alarm device when the battery cell is detected to be skewed to prompt the relevant staff to make adjustments. Although this manual adjustment method can solve the problem of skewed battery cells, the production efficiency is not high. Therefore, how to achieve automatic adjustment of skewed battery cells is a technical problem that urgently needs to be solved. Summary of the Invention

[0003] The purpose of the present application is to provide a battery cell skew adjustment device to solve the problem of low production efficiency caused by battery cell skew in existing string welding machines.

[0004] In order to achieve the above purpose, the technical solutions adopted are as follows:

[0005] A battery cell skew adjustment device comprises at least one adjustment unit, the adjustment unit comprising a box, a motor, a transmission unit, an air pump, a cavity, a first air pipe, a second air pipe, a telescopic unit and a suction cup; wherein the motor and the air pump are arranged in the box, the transmission unit is arranged at the upper end of the box, the power output end of the motor is connected to the cavity through the transmission unit, a first interface and a second interface are arranged on the cavity, a cavity is arranged inside the cavity, one end of the first air pipe is connected to the air pump, the other end of the first air pipe is connected to the first interface, the telescopic unit is installed on one side of the cavity, the telescopic end of the telescopic unit is connected to the suction cup, the suction cup is located at the lower end of the cavity, the suction cup comprises a gas channel, a disc and a rotating motor, the output end of the rotating motor is connected to the disc, the gas channel is arranged in the disc, and the second interface is connected to the gas channel through the second air pipe.

[0006] Preferably, in the above-mentioned battery cell skew adjustment device, the transmission unit includes a first pulley, a belt and a second pulley; wherein, the first pulley is connected to the power output end of the motor, the first pulley is connected to the second pulley through the belt, and the cavity is assembled on the second pulley.

[0007] Preferably, the above-mentioned battery cell skew adjustment device further includes translation units with the same number as the adjustment units; wherein one adjustment unit is installed on one translation unit, so that the adjustment unit is driven by the translation unit to achieve translation.

[0008] Preferably, in the above-mentioned battery cell skew adjustment device, the translation unit includes a slide, a slide rail, a slider, a mounting plate, a cylinder mounting plate and a cylinder; wherein, the slide rail is arranged at the upper end of the slide, the adjustment unit is fixedly assembled on the mounting plate, the mounting plate is fixedly arranged on the upper end of the slider, the slider is movably arranged on the slide rail, the cylinder is installed on the cylinder mounting plate, and the telescopic end of the cylinder is connected to the mounting plate.

[0009] Preferably, in the above-mentioned battery cell skew adjustment device, the cylinder mounting plate is fixedly connected to one side of the slide seat.

[0010] Preferably, in the above-mentioned battery cell skew adjustment device, a wiring port is provided on the side wall of the box.

[0011] Preferably, in the above-mentioned battery cell skew adjustment device, the air pump has a gas end portion, wherein a portion of the gas end portion is arranged on the outside of the box body.

[0012] It also includes an industrial camera and an industrial controller; wherein the signal output end of the industrial camera is connected to the industrial controller, and the signal output end of the industrial controller is connected to the signal input end of the motor, air pump, rotating motor and telescopic unit.

[0013] Preferably, in the above-mentioned battery cell skew adjustment device, a pressure relief valve is provided on the upper side wall of the cavity.

[0014] Preferably, the above-mentioned battery cell skew adjustment device also includes an industrial camera and an industrial controller; wherein the signal output end of the industrial camera is connected to the industrial controller, and the signal output end of the industrial controller is connected to the signal input end of the motor, air pump, telescopic unit, rotating motor and cylinder.

[0015] The beneficial effects of this application are:

[0016] The present application sets up at least one adjustment unit. When facing a tilted battery cell, based on the determined rotation center, the adjustment unit is used to absorb the rotation center through a suction cup, and the rotating motor is controlled to work according to the set rotation angle and direction. In this way, the battery cell can be rotated around the rotation center and the tilted battery cell can be adjusted, thereby realizing automatic adjustment of the tilted battery cell. Compared with manual adjustment, the adjustment efficiency is higher, which can greatly improve the production efficiency of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a battery cell skew adjustment device according to an embodiment of the present application is shown.

[0018] Figure 2 A top view of a battery cell skew adjustment device according to an embodiment of the present application is shown.

[0019] Figure 3 A cross-sectional view taken along line AA of a device for adjusting a cell skew according to an embodiment of the present application is shown.

[0020] Figure 4 A schematic diagram shows a situation where the rotation center is not located on the battery cell according to an embodiment of the present application.

[0021] Figure 5 A schematic diagram shows a situation where the rotation center is located on the battery cell according to an embodiment of the present application; wherein (a), (b) and (c) respectively represent situations where the rotation center of the tilted battery cell a relative to the upright battery cell b is located at the center of the tilted battery cell a, at the variable angle of the tilted battery cell a, and at a randomly selected point on the tilted battery cell a.

[0022] Figure 6 A structural diagram of a battery cell skew adjustment device according to an embodiment of the present application is shown after a translation unit is added.

[0023] Figure 7 A schematic diagram showing the state of the tilted battery cell after one round of adjustment according to an embodiment of the present application is shown.

[0024] Figure 8 A control block diagram of a battery cell skew adjustment device according to an embodiment of the present application is shown.

[0025] Reference numerals:

[0026] 100, adjustment unit; 110, housing; 111, connection port; 120, motor; 130, transmission unit; 131, first pulley; 132, belt; 133, second pulley; 140, air pump; 141, gas end; 150, cavity; 151, first interface; 152, second interface; 153, cavity; 160, first air pipe; 170, second air pipe; 180, telescopic unit; 190, suction cup; 191, air channel; 192, disc; 193, rotating motor;

[0027] 200, translation unit; 201, slide; 202, slide rail; 203, slider; 204, mounting plate; 205, cylinder mounting plate; 206, cylinder;

[0028] 300, industrial camera;

[0029] 400. Industrial controller. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0031] The specific implementation methods of the present application are further described in detail below with reference to the accompanying drawings and examples.

[0032] The embodiment of the present application provides a device for adjusting the skew of a battery cell, such as Figures 1 to 3 As shown, the battery cell skew adjustment device includes at least one adjustment unit 100, which includes a box 110, a motor 120, a transmission unit 130, an air pump 140, a cavity 150, a first air pipe 160, a second air pipe 170, a telescopic unit 180 and a suction cup 190; wherein the motor 120 and the air pump 140 are arranged in the box 110, the transmission unit 130 is arranged at the upper end of the box 110, the power output end of the motor 120 is connected to the cavity 150 through the transmission unit 130, the cavity 150 is provided with a first interface 151 and a second interface 152, and the cavity A cavity 153 is set inside 150, one end of the first air pipe 160 is connected to the air pump 140, and the other end of the first air pipe 160 is connected to the first interface 151. The telescopic unit 130 is installed on one side of the cavity 150, and the telescopic unit 130 is connected to the suction cup 190. The suction cup 190 is located at the lower end of the cavity 150. The suction cup 190 includes a gas channel 191, a disk body 192 and a rotating motor 193. The output end of the rotating motor 193 is connected to the disk body 192, and a gas channel 191 is set in the disk body 192. The second interface 152 is connected to the gas channel 191 through the second air pipe 170.

[0033] It should be noted that the adjustment device is used to adjust the battery cell that is tilted at a small angle after the translation and alignment mechanism is aligned. Therefore, it can be basically assumed that the rotation center of the tilted battery cell relative to the upright battery cell is located on the tilted battery cell. In actual production, the rotation center will basically not be located at a position other than the tilted battery cell. Please refer to Figure 4 , Figure 4Here, O1 represents the rotation center of tilted cell a relative to the aligned cell b. If O1 is not located within tilted cell a, a comparison of the positions of tilted cell a and aligned cell b reveals that both are severely tilted. This situation rarely occurs when the translational alignment mechanism is functioning properly. It should be noted that the translational alignment mechanism is a pre-existing feature in existing Maverick stringer machines (such as the S5000). Its specific structure and operating principle are not described in detail here.

[0034] In this embodiment, the functions of the various components of the adjustment unit 100 are first introduced. The motor 120 is used to drive the cavity 150 to rotate through the transmission unit 130, so that the suction cup 190 can rotate as a whole, ensuring the range of motion of the suction cup 190. The air pump 140 provides the suction cup 190 with power to adsorb the battery cell. Specifically, when the air pump 140 is working, the gas in the cavity 150 is discharged through the first air pipe 160, and the gas in the gas channel 191 in the suction cup 190 is also discharged through the second air pipe 170 and through the cavity 153. This can form a negative pressure or vacuum in the disc 192. When the disc 192 contacts the battery cell, it can adsorb the battery cell. Adjusting the working parameters of the air pump 140 can adjust the pressure of the suction cup 190 on the battery cell. The suction cup 190 is rotatable, and a rotary motor 193 is used to drive the cup body 192 to rotate. When the cup body 192 is positioned to hold a cell, it can rotate the cell around the point of attachment, adjusting the angle and positioning the cell horizontally. The telescopic unit 180 can be a conventional device, such as a telescopic cylinder or linear motor, capable of driving the suction cup 190 up and down. The telescopic unit 180 allows the suction cup 190 to contact the cell, and the air pump 140 generates suction to hold the cell. The cavity 153 provides a buffering and protective function. If the air pump 140 malfunctions, pressure relief can be achieved via a pressure relief valve 154 located on the upper sidewall of the cavity 150. In some embodiments, a perforated partition can be installed in the cavity 153. This partition can prevent cell fragments from entering the air pump 140 and damaging it, or from being discharged by the air pump 140 and potentially damaging personnel or other equipment. The suction cup 190 generates negative pressure through the gas channel 191 in the disc body 192 to adsorb the battery cell, wherein a flexible contact component is usually provided on the end surface of the disc body 192 that contacts the battery cell. The flexible contact component can be made of a rubber material. The disc body 192 is rotated by the rotating motor 193 so that the battery cell it adsorbs can rotate at the same time. The rotating motor 193 is assembled on the telescopic unit 130.

[0035] The working principle of the cell skew adjustment device is described in detail below in combination with different tilt situations. Figure 5 As shown, Figure 5(a), (b) and (c) respectively represent the cases where the rotation center of the tilted cell a relative to the upright cell b is located at the center of the tilted cell a, the angle of the tilted cell a, and a randomly selected point in the tilted cell a. Figure 5 O2, O3, and O4 in (a), (b), and (c) are shown. The motor 120 is controlled so that the center of the plate 192 of the suction cup 190 is aligned with the rotation center O2, O3, or O4. The telescopic unit 180 and the air pump 140 are controlled so that the plate 192 can absorb the tilted cell a. The rotation motor 193 is then controlled based on the set adjustment angle to rotate the tilted cell a around the rotation center O2, O3, or O4 by a certain angle, thereby allowing the tilted cell a to be aligned with the cell b.

[0036] It should be noted that the tilted cell a and the straightened cell b show two different states, where the tilted cell a is the actual state of the cell that needs to be adjusted and can be obtained through the visual module, and the straightened cell b is the set qualified placement state of the cell. Figure 5 Taking (c) as an example, find the two points B and C on the tilted cell a and the corresponding points B* and C* on the upright cell b. Connect the corresponding points, namely, point B and point B*, and point C and point C*. This will create two line segments BB* and CC*. Draw the perpendicular bisectors of these two line segments, respectively. The intersection of these two perpendicular bisectors is the rotation center O4. Once the rotation center is determined, the rotation angle can be determined. By controlling the operation of the rotary motor 193 based on the determined rotation angle, the tilted cell can be adjusted to a flat position. The rotation angle here is a vector, including the specific rotation angle value and the rotation direction. There are only two rotation directions: clockwise and counterclockwise. Therefore, by simultaneously controlling the rotation direction and angle of the rotary motor 193 based on the determined rotation angle, the tilted cell can be adjusted.

[0037] In some embodiments, as Figure 3 As shown, the transmission unit 130 includes a first pulley 131, a belt 132 and a second pulley 133; wherein, the first pulley 131 is connected to the power output end of the motor 120, the first pulley 131 is connected to the second pulley 133 through the belt 132, and the cavity 150 is assembled on the second pulley 133.

[0038] In this embodiment, the motor 120 can be a servo motor, that is, it can realize forward and reverse rotation. When the motor 120 is working, the motor 120 drives the first pulley 131 to rotate. The first pulley 131 drives the second pulley 133 to rotate via the belt 132, causing the cavity 150 to rotate. The telescopic unit 180 is mounted on one side of the cavity 150, and the suction cup 190 is mounted on the telescopic unit 180. Therefore, the suction cup 190 will rotate around the axis of the second pulley 133, so that it has a certain coverage range on the battery cell and can move above the determined rotation center.

[0039] In some embodiments, as Figure 6 As shown, the cell skew adjustment device further includes the same number of translation units 200 as the adjustment units 100 ; wherein one adjustment unit 100 is mounted on one translation unit 200 , so that the translation unit 200 drives the adjustment unit 100 to achieve translation.

[0040] In this embodiment, a translation unit 200 is additionally provided, and the purpose is to drive the adjustment unit 100 to translate in a certain set direction through the translation unit 200, and at the same time cooperate with the structure of the motor 120 and the transmission unit 130 provided in the adjustment unit 100 itself to increase the range of movement of the suction cup 190 on the plane, so that the suction cup 190 can correspondingly adsorb the inclination angle of the battery cell in different inclination situations.

[0041] Moreover, after the translation unit 200 is provided, the suction cup 190 has a wider range of movement and can be adjusted even when the rotation center is not located on the tilted battery sheet. Figure 4 Take the following situation as an example, Figure 4 As shown in FIG, a corner of the tilted cell a is Figure 4 As shown in the figure, the motor 120 and the translation unit 200 are first controlled to align the center of the disk 192 with the point D. Then, the telescopic unit 180 and the air pump 140 are controlled to absorb the tilted battery cell a through the disk 192. Then, the motor 120 and the translation unit 200 are controlled to make the point D on the tilted battery cell a coincide with the point D* corresponding to the point D on the straightened battery cell b, as shown in FIG. Figure 7 The status shown, where Figure 7 The status shown is the same as Figure 5 The state shown in (b) is a similar state, where the rotation center is at the corner of the tilted battery cell a. The adjustment of the tilted battery cell a can be achieved by referring to the adjustment process described above.

[0042] In some embodiments, as Figure 6As shown, the translation unit 200 includes a slide 201, a slide rail 202, a slider 203, a mounting plate 204, a cylinder mounting plate 205 and a cylinder 206; wherein, the slide rail 202 is arranged at the upper end of the slide 201, the adjustment unit 100 is fixedly assembled on the mounting plate 204, the mounting plate 204 is fixedly arranged on the upper end of the slider 203, the slider 203 is movably arranged on the slide rail 202, the cylinder 206 is installed on the cylinder mounting plate 205, and the telescopic end of the cylinder 206 is connected to the mounting plate 204; the cylinder mounting plate 204 is fixedly connected to one side of the slide 201.

[0043] In this embodiment, the extension and retraction direction of the cylinder 206 is consistent with the movement direction of the slider 203 on the slide rail 202. Under the action of the cylinder 206, the mounting plate 204 is pushed to achieve left and right translation. During this process, the slider 203 moves on the slide rail 202. The slide rail 202 and the slider 203 can play a guiding role, so that the adjustment unit 100 set on the mounting plate 204 can move in a set direction and a set distance, so that the position of the suction cup 190 can be accurately adjusted so that it can be aligned with the rotation center to ensure the adjustment effect of the battery cell.

[0044] In some embodiments, as Figure 1 As shown, a connection port 111 is provided on the side wall of the box body 110 .

[0045] In this embodiment, the wiring port 111 is used to connect the corresponding wiring of the air pump 140 and the motor 120, where the wiring of the air pump 140 and the motor 120 includes power lines, signal control lines, etc. The power lines are used to connect to the power source, and the power supply of the air pump 140 and the motor 120 can both use the power supply connected to the power grid. The signal control lines are used to transmit control signals to the air pump 140 and the motor 120 so that they can operate according to the control signals and realize automatic adjustment of the tilted battery cells.

[0046] In some embodiments, as Figure 2 As shown, the air pump 140 has a gas end 141 , wherein a portion of the gas end 141 is disposed outside the box body 110 .

[0047] In this embodiment, the gas end 141 is in contact with the atmosphere. In actual implementation, the gas end 141 is mainly used to discharge the gas in the intermediate part between the air pump 140 including the cavity 150 and the suction cup 190.

[0048] In some embodiments, as Figure 8 As shown, the battery cell skew adjustment device also includes an industrial camera 300 and an industrial controller 400; wherein, the signal output end of the industrial camera 300 is connected to the industrial controller 400, and the signal output end of the industrial controller 400 is connected to the signal input end of the motor 120, the air pump 140, the telescopic unit 180, and the rotating motor 193.

[0049] In this embodiment, the industrial camera 300 and the industrial controller 400 are both existing devices that can be purchased on the market, and their specific models are not limited here. The industrial camera 300 is used to collect the status of the battery cells during the production process. The collected data is usually image data, which can be multiple frames of continuous pictures. The pictures contain battery cells. The collected image data will be fed to the industrial controller 400. The industrial controller 400 extracts the battery cell features from the pictures based on existing image processing technology, and compares the battery cell features with the standard features in the same coordinate system based on the set standard features. If the two features overlap, it is determined that the battery cell is not tilted. If they do not overlap, for example, Figure 5 The states shown, i.e., the cell characteristics and the standard characteristics correspond to the tilted cell a and the straightened cell b, respectively. At this time, the industrial controller 400 will calculate the rotation center and the rotation angle, and then control the motor 120, the air pump 140, the telescopic unit 180, and the rotating motor 193 to work together (the specific work flow has been explained in detail in the previous embodiment, so it will not be repeated here) to achieve the tilt adjustment of the cell.

[0050] It should be noted that when a translation unit 200 is provided in the battery cell skew adjustment device, the signal output end of the industrial controller 400 is also connected to the signal input end of the cylinder 206 , so that the range of movement of the suction cup 190 can be wider by controlling the cylinder 206 .

[0051] It should be noted that the process of processing the image data collected by the industrial camera 300 by the industrial controller 400 as described above is an existing technology, such as the visual technology that is currently widely used in string welding machines, and the calculation of the rotation center and the rotation angle is the basic content of mathematical graphic transformation. At the same time, after determining the rotation center and the rotation angle, the process of specifically controlling the motor 120, the air pump 140, the telescopic unit 180, and the rotating motor 193 to cooperate to achieve battery cell adjustment is also an electrical control technology known in the art. Therefore, this embodiment does not describe the specific control process of the industrial controller 400 in detail here. At the same time, this application does not improve the control method of the industrial controller 400. The image processing (vision), rotation center and angle calculation, and control of electrical equipment applied as above all adopt existing technologies.

[0052] The above implementation modes are only used to illustrate the present application and are not intended to limit the present application. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present application. Therefore, all equivalent technical solutions also fall within the scope of the present application, and the scope of patent protection of the present application shall be defined by the claims.

Claims

1. A battery cell skew adjustment device, characterized in that: The invention also provides a novel air filter, a kind of novel air filter, and a kind of novel air filter that can be used for the air filter of claim 1, wherein the air filter is installed on the outer cover of the air filter, and the air filter is installed on the outer cover of the air filter.

2. The battery cell skew adjustment device according to claim 1, wherein: The transmission unit includes a first pulley, a belt and a second pulley; wherein, the first pulley is connected to the power output end of the motor, the first pulley is connected to the second pulley through the belt, and the cavity is assembled on the second pulley.

3. The battery cell skew adjustment device according to claim 1, wherein: It also includes translation units with the same number as the adjustment units; wherein one adjustment unit is installed on one translation unit, so that the adjustment unit is driven by the translation unit to achieve translation.

4. The battery cell skew adjustment device according to claim 3, wherein: The translation unit includes a slide seat, a slide rail, a slider, a mounting plate, a cylinder mounting plate and a cylinder; wherein the slide rail is arranged at the upper end of the slide seat, the adjustment unit is fixedly assembled on the mounting plate, the mounting plate is fixedly arranged on the upper end of the slider, the slider is movably arranged on the slide rail, the cylinder is installed on the cylinder mounting plate, and the telescopic end of the cylinder is connected to the mounting plate.

5. The battery cell skew adjustment device according to claim 4, wherein: The cylinder mounting plate is fixedly connected to one side of the slide seat.

6. The battery cell skew adjustment device according to claim 1, wherein: A wiring port is provided on the side wall of the box.

7. The battery cell skew adjustment device according to claim 1, wherein: The air pump has a gas end portion, wherein a portion of the gas end portion is arranged outside the box body.

8. The battery cell skew adjustment device according to claim 1, wherein: It also includes an industrial camera and an industrial controller; wherein the signal output end of the industrial camera is connected to the industrial controller, and the signal output end of the industrial controller is connected to the signal input end of the motor, air pump, rotating motor and telescopic unit.

9. The battery cell skew adjustment device according to claim 1, wherein: A pressure relief valve is provided on the upper side wall of the cavity.

10. The battery cell skew adjustment device according to claim 4, wherein: It also includes an industrial camera and an industrial controller; wherein the signal output end of the industrial camera is connected to the industrial controller, and the signal output end of the industrial controller is connected to the signal input end of the motor, air pump, telescopic unit, rotary motor and cylinder.

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