Battery weighing device and battery production line

Abstract

This invention discloses a battery weighing device and a battery production line. The battery weighing device includes a weighing mechanism, a conveyor line, a clamping mechanism, and a horizontal pushing mechanism. The conveyor line is located on one side of the weighing mechanism and forms a conveying surface. The clamping mechanism includes a first vertical clamping plate, a second vertical clamping plate, a first horizontal clamping plate, a second horizontal clamping plate, and a clamping driver. The first and second vertical clamping plates are located above the conveyor line and are respectively disposed on both sides of the width direction of the conveying surface. The first and second horizontal clamping plates are respectively disposed below the first and second vertical clamping plates, and at least one of them can slide along the width direction of the conveying surface. The clamping driver is used to drive the first and second horizontal clamping plates to move closer to or further away to clamp or release the support cup. The horizontal pushing mechanism is connected to the clamping mechanism and is used to move the clamping mechanism between the conveying surface and the weighing mechanism. This invention can improve the efficiency of battery weighing and alleviate battery surface damage problems.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a battery weighing device and a battery production line. Background Technology

[0002] Typically, batteries need to be weighed before and after electrolyte filling to help determine whether the filling amount meets the qualification standards. In related technologies, the batteries to be filled are transported to the battery weighing equipment via a conveyor line. To avoid damage to the surface caused by collisions between batteries on the conveyor line, each battery is inserted into a corresponding cup. After each battery is transported to the vicinity of the battery weighing equipment, it needs to be clamped by a clamping mechanism to protrude from the top of the cup. Then, a vertical drive structure drives the clamping mechanism and the battery to move upward together to detach from the cup. Subsequently, a horizontal drive mechanism drives the clamping mechanism and the battery to move horizontally above the weighing scale of the battery weighing equipment. Then, a vertical drive structure drives the clamping mechanism and the battery to move downward to place the battery on the weighing scale. Finally, the weighed battery needs to be returned to its corresponding cup through the reverse process. This type of battery weighing equipment is cumbersome in terms of moving the battery. In addition, because the top of the battery needs to be clamped, and there may be collisions between the battery and the weighing scale and the cup during the process of placing the battery on and returning it to the cup, the battery surface is also easily damaged. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a battery weighing device that can effectively improve the efficiency of the battery weighing process and also improve the problem of battery surface damage.

[0004] The present invention also provides a battery production line having the above-mentioned battery weighing equipment.

[0005] According to a first aspect of the present invention, a battery weighing device includes a weighing mechanism, a conveyor line, a clamping mechanism, and a horizontal pushing mechanism; the weighing mechanism is used for weighing; the conveyor line is disposed on one side of the weighing mechanism and has a conveying surface for conveying a cup carrying a battery along the conveying surface; the clamping mechanism includes a clamping assembly, the clamping assembly including a first vertical clamping plate, a second vertical clamping plate, a first horizontal clamping plate, a second horizontal clamping plate, and a clamping driver; the first vertical clamping plate and the second vertical clamping plate are located above the conveyor line and are respectively disposed on both sides of the width direction of the conveying surface to restrict the cup from falling off the conveying surface; A horizontal clamping plate and a second horizontal clamping plate are arranged opposite to each other and are respectively arranged below the first vertical clamping plate and the second vertical clamping plate. At least one of the first horizontal clamping plate and the second horizontal clamping plate is slidably arranged along the width direction of the conveying surface. A clamping driver is connected to the first horizontal clamping plate and / or the second horizontal clamping plate and is used to drive the first horizontal clamping plate and the second horizontal clamping plate to move closer or further away from each other to clamp or release the cup located between the first vertical clamping plate and the second vertical clamping plate. A horizontal pushing mechanism is connected to the clamping mechanism and is used to drive the clamping mechanism holding the cup to move horizontally between the conveying surface and the weighing mechanism.

[0006] The battery weighing device according to the first aspect of the present invention has at least the following beneficial effects:

[0007] In this embodiment, by placing the first and second vertical clamping plates above the conveying surface and on both sides of the conveying surface width, the tray carrying the battery can automatically enter between the first and second vertical clamping plates under the conveyor line. Then, the clamping driver drives the first and second horizontal clamping plates, which are located below the first and second vertical clamping plates, to move closer together, thus clamping the tray. Subsequently, the horizontal pushing mechanism drives the clamping mechanism to move towards the weighing mechanism, so that the clamping mechanism, holding the tray carrying the battery, moves together with the tray along a horizontal plane parallel to the conveying surface to the weighing mechanism. Then, the clamping driver drives the first and second horizontal clamping plates to separate, thus releasing the tray. The weighing mechanism then weighs the tray and the battery together. Since the tray is a fixture for auxiliary battery conveying and its weight is fixed, the weight of the tray can be obtained beforehand. After the battery weight is obtained, the cup is clamped by a clamping mechanism and then driven by a horizontal pushing mechanism to move the clamping mechanism toward the conveying surface of the conveyor line. Finally, the clamping driver drives the first and second horizontal clamping plates to separate and release the cup. The battery and the cup can then be moved out of the battery weighing device by the conveyor line. Therefore, the battery weighing device of this embodiment eliminates the need to move the battery vertically to detach it from the cup or place it back into the cup during the battery weighing process, which simplifies the weighing steps and improves the efficiency of battery weighing. On the other hand, since the clamping mechanism clamps the cup instead of the battery, and the battery remains inside the cup throughout the weighing process, it effectively reduces the problem of battery surface damage from clamping and the problem of collision damage between the battery and the weighing scale and the cup, thereby improving the quality of the finished battery.

[0008] According to some embodiments of the battery weighing device of the first aspect of the present invention, a plurality of first arc grooves are provided on the side of the first horizontal clamping plate facing the second horizontal clamping plate, and a plurality of second arc grooves are provided on the side of the second horizontal clamping plate facing the first horizontal clamping plate. Each second arc groove 341 is correspondingly provided with a first arc groove 331, and together they form a clamping position that matches the cup.

[0009] According to some embodiments of the battery weighing device of the first aspect of the present invention, the centers of any two adjacent first arc grooves and the centers of any two adjacent second arc grooves are staggered in the width direction of the conveying surface.

[0010] According to some embodiments of the battery weighing device of the first aspect of the present invention, the clamping assembly further includes a connecting frame and a distance adjustment driver. The first vertical clamping plate and the second vertical clamping plate are both disposed on the connecting frame, and at least one of the first vertical clamping plate and the second vertical clamping plate is slidably disposed along the width direction of the conveying surface. The distance adjustment driver is connected to the first vertical clamping plate and / or the second vertical clamping plate and is used to drive the first vertical clamping plate and the second vertical clamping plate to move closer or further away from each other, so as to change the distance between the first vertical clamping plate and the second vertical clamping plate.

[0011] According to some embodiments of the battery weighing device of the first aspect of the present invention, a first horizontal pushing mechanism is connected to a connecting frame, a first vertical clamping plate is fixedly connected to the connecting frame, a second vertical clamping plate is slidably connected to the connecting frame along the width direction of the conveying surface, an adjustment driver is disposed on the connecting frame and connected to the second vertical clamping plate, the first horizontal clamping plate is slidably connected to the lower end of the first vertical clamping plate along the width direction of the conveying surface, the second horizontal clamping plate is slidably connected to the connecting frame along the width direction of the conveying surface, and two clamping drivers are provided, one clamping driver is disposed on the first vertical clamping plate and connected to the first horizontal clamping plate, and the other clamping driver is disposed on the second horizontal clamping plate and connected to the connecting frame.

[0012] According to some embodiments of the first aspect of the present invention, the battery weighing device includes a lifting platform, a first lifting driver, and multiple weighing scales. The multiple weighing scales are arranged one-to-one with the clamping positions, and each weighing scale has a positioning part on its top that cooperates with the bottom of the cup. The lifting platform is arranged above the weighing scales, and the lifting platform is provided with multiple clearance holes corresponding to each positioning part. The size of the clearance holes is larger than the size of the positioning part and smaller than the size of the cup, so as to allow the positioning part to pass through and prevent the cup from passing through. The first lifting driver is connected to the lifting platform and can drive the lifting platform to move between the receiving position and the clearance position. When in the receiving position, the upper surface of the lifting platform is flush with the conveying surface and higher than the positioning part. When in the clearance position, the positioning part passes through the clearance hole and protrudes from the upper surface of the lifting platform.

[0013] According to some embodiments of the battery weighing device of the first aspect of the present invention, the central axes of any two adjacent clearance holes and the central axes of any two adjacent positioning parts are offset in the width direction of the conveying surface.

[0014] According to some embodiments of the first aspect of the present invention, the battery weighing device further includes a calibration mechanism. The calibration mechanism includes a transfer component, a suspension frame, and a plurality of weights. The plurality of weights are all suspended on the suspension frame and are arranged in a one-to-one correspondence with the positioning part. The transfer component is connected to the suspension frame and includes a horizontal movement driver and a second lifting driver connected to each other. The horizontal movement driver drives the suspension frame to move horizontally above the weighing scale, and the second lifting driver drives the suspension frame to lift.

[0015] According to some embodiments of the first aspect of the present invention, the battery weighing device further includes a first stop mechanism and a second stop mechanism disposed on the conveyor line, the second stop mechanism being disposed on the inlet side of the clamping mechanism and the first stop mechanism being disposed on the outlet side of the clamping mechanism.

[0016] According to some embodiments of the second aspect of the present invention, a battery production line includes the battery weighing equipment described in the first aspect embodiment.

[0017] The battery production line according to some embodiments of the second aspect of the present invention has at least the following beneficial effects:

[0018] The battery production line of this embodiment adopts the battery weighing equipment of the first aspect embodiment described above. On the one hand, it helps to simplify the battery weighing process to improve efficiency, and on the other hand, it can effectively improve the problem of battery surface damage, which is conducive to improving the quality of the finished battery.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure of a battery weighing device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the connection structure between the clamping mechanism and the horizontal pushing mechanism shown in the figure;

[0023] Figure 3 for Figure 2 A schematic diagram of the clamping assembly shown from one perspective;

[0024] Figure 4 for Figure 2 Another structural schematic diagram of the clamping component shown;

[0025] Figure 5 for Figure 2 A bottom view of the clamping assembly shown;

[0026] Figure 6 for Figure 1 The diagram shows the structure of the weighing mechanism, with the lifting platform in the receiving position.

[0027] Figure 7 for Figure 1 The diagram shows the structure of the weighing mechanism, with the lifting platform in a clearance position.

[0028] Figure 8 This is a schematic diagram used to illustrate the relative positional relationship between the weighing mechanism and the calibration mechanism;

[0029] Figure 9 This is a magnified view showing the connection between the weights and the suspension frame.

[0030] Figure label:

[0031] Weighing mechanism 100; lifting platform 110; clearance hole 111; first lifting drive 120; weighing scale 130; positioning part 131; conveyor line 200; conveying surface 210; limit stop bar 220; first stop mechanism 230; second stop mechanism 240; clamping mechanism 300; clamping assembly 300a; first vertical clamping plate 310; first slider 311; second vertical clamping plate 320; guide rod 321; first horizontal clamping plate 330; first arc groove 331; first slide rail 332; second horizontal clamping plate 3 40; Second arc groove 341; Second slide rail 342; Clamping driver 350; Connecting frame 360; Mounting plate 361; Second slider 362; Adjustment driver 370; Horizontal pushing mechanism 400; Pushing driver 410; Connecting plate 420; Weighting mechanism 500; Transverse movement driver 511; Second lifting driver 512; Suspension frame 520; Movable cavity 521; Through hole 522; Weight 530; Suspension part 531; Connecting part 532; Main body part 533; Cup holder 610; Battery 620. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0034] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0035] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0036] The following is for reference only. Figure 1 To be continued Figure 9 This describes a battery weighing device according to a first aspect embodiment of the present invention.

[0037] Reference Figure 1 According to some embodiments of the present invention, a battery weighing device includes a weighing mechanism 100, a conveyor line 200, a clamping mechanism 300, and a horizontal pushing mechanism 400. The weighing mechanism 100 is used for weighing to determine the weight of the battery 620 before or after electrolyte injection. The conveyor line 200 is a device for inputting or outputting the battery 620 into or out of the battery weighing device. Its inlet end is used to connect to the battery output line of the previous station in the battery production line, and its outlet end is used to connect to the battery conveying line that transports the battery to the next station in the battery production line. Furthermore, to facilitate the transfer of the battery 620 from the conveyor line 200 to the weighing mechanism 100, the conveyor line 200 is disposed on one side of the weighing mechanism 100, and the conveyor line 200 has a conveying surface 210. Before entering the conveyor line 200, the battery 620 is placed in a cup 610, and after entering the conveyor line 200, it can be conveyed along the conveying surface 210 from the inlet end to the outlet end of the conveyor line 200. The clamping mechanism 300 is used in conjunction with the horizontal pushing mechanism 400 to horizontally push the cup 610 carrying the battery 620 from the conveyor line 200 to the weighing mechanism 100, or to horizontally push the cup 610 carrying the battery 620 from the weighing mechanism 100 back to the conveying surface 210 of the conveyor line 200.

[0038] Understandably, referring to Figures 1 to 4To achieve clamping of the cup 610 on the conveying surface 210, the clamping mechanism 300 specifically includes a clamping assembly 300a, which includes a first vertical clamping plate 310, a second vertical clamping plate 320, a first horizontal clamping plate 330, a second horizontal clamping plate 340, and a clamping driver 350. The first vertical clamping plate 310 and the second vertical clamping plate 320 are located above the conveying line 200 and are respectively positioned on both sides of the width direction of the conveying surface 210. This allows the battery 620 and the cup 610 conveyed from the conveying surface 210 to automatically enter between the first vertical clamping plate 310 and the second vertical clamping plate 320. Simultaneously, the first vertical clamping plate 310 and the second vertical clamping plate 320 participate in forming the side baffle structure of a portion of the conveying surface 210, and can prevent the cup 610 from detaching from the conveying surface 210 along its width direction. The first horizontal clamping plate 330 and the second horizontal clamping plate 340... The clamping mechanism 300 is a clamping component that clamps the cup 610. The first horizontal clamping plate 330 and the second horizontal clamping plate 340 are arranged opposite to each other and are respectively arranged below the first vertical clamping plate 310 and the second vertical clamping plate 320. At least one of the first horizontal clamping plate 330 and the second horizontal clamping plate 340 is slidably arranged along the width direction of the conveying surface 210 so that the first horizontal clamping plate 330 and the second horizontal clamping plate 340 can move closer to each other or further away from each other in the width direction of the conveying surface 210. When they are close to each other, they can cooperate to clamp and fix the cup 610, and when they are far apart, they can release the cup 610. The clamping driver 350 is connected to the first horizontal clamping plate 330 and / or the second horizontal clamping plate 340 and is used to drive the first horizontal clamping plate 330 and the second horizontal clamping plate 340 to move closer to each other or further away from each other, so as to realize the automatic clamping or releasing of the cup 610. The horizontal pushing mechanism 400 is connected to the clamping mechanism 300, and the pushing direction of the horizontal pushing mechanism 400 is in the horizontal direction pointing towards the weighing mechanism 100 and the conveyor line 200, thereby driving the clamping mechanism 300 that holds the cup 610 to move horizontally between the conveying surface 210 and the weighing mechanism 100, so as to push the unweighed battery 620 from the conveyor line 200 to the weighing mechanism 100, and then push the weighed battery 620 back to the conveyor line 200 from the weighing mechanism 100.

[0039] It should be understood that in this embodiment, by placing the first vertical clamping plate 310 and the second vertical clamping plate 320 above the conveying surface 210 and on both sides of the width direction of the conveying surface 210, the cup 610 carrying the battery 620 can automatically enter between the first vertical clamping plate 310 and the second vertical clamping plate 320 under the conveying line 200. Then, the clamping driver 350 drives the first horizontal clamping plate 330 and the second horizontal clamping plate 340, which are respectively located below the first vertical clamping plate 310 and the second vertical clamping plate 320, to move closer to each other, thereby completing the clamping of the cup 610. Then, the horizontal pushing mechanism 400 drives the clamping mechanism 300 to move towards the weighing mechanism 100, so that the clamping mechanism 300 clamps the cup 610 carrying the battery 620 and moves it together with the cup 610 along a horizontal plane parallel to the conveying surface 210 to the weighing mechanism 100. Then, the clamping driver 350 drives the first horizontal clamping plate 330 and the second horizontal clamping plate 340 to separate from each other, thus releasing the cup 610. Subsequently, the weighing mechanism 100 weighs the cup 610 and the battery 620 together. Since the cup 610 is a fixture used to assist in the conveying of the battery 620 and its weight is fixed, it is weighed in advance. The weight of the battery 620 can be obtained by measuring the weight of the cup 610. After weighing, the cup 610 is clamped by the clamping mechanism 300 and then moved towards the conveying surface 210 of the conveyor line 200 by the horizontal pushing mechanism 400. Finally, the first horizontal clamping plate 330 and the second horizontal clamping plate 340 are separated by the clamping driver 350, releasing the cup 610. The battery 620 and the cup 610 can then continue to be moved out of the battery weighing device under the conveyor line 200. Therefore, the battery weighing device of this embodiment can, on the one hand, measure the weight of the battery 620, and on the other ... During the weighing process, there is no need to move the battery 620 vertically to detach it from the cup 610 or place it back into the cup 610. This simplifies the weighing process and improves the efficiency of weighing the battery 620. On the other hand, since the clamping mechanism 300 clamps the cup 610 instead of the battery 620, and since the battery 620 remains inside the cup 610 throughout the weighing process, it can also effectively reduce the problem of clamping damage to the battery 620 and the problem of collision damage between the battery 620 and the weighing scale and the cup 610. This also helps to improve the quality of the finished battery 620.

[0040] It is understood that in some embodiments, the battery 620 is a cylindrical battery 620, and the cup 610 is correspondingly set in a cylindrical shape. Furthermore, to ensure that the first horizontal clamping plate 330 and the second horizontal clamping plate 340 can better contact the cup 610 and improve the clamping effect, refer to... Figure 5The first horizontal clamping plate 330 has a plurality of first arc grooves 331 on the side facing the second horizontal clamping plate 340, and the second horizontal clamping plate 340 has a plurality of second arc grooves 341 on the side facing the first horizontal clamping plate 330. Each second arc groove 341 is corresponding to a first arc groove 331, and the radii of the first arc groove 331 and the second arc groove 341 are matched with the radius of the cup holder 610. Thus, when the first horizontal clamping plate 330 and the second horizontal clamping plate 340 are close to each other, they can fit against the outer cylindrical surface of the cup holder 610. That is, each first arc groove 331 and the corresponding second arc groove 341 can together form a clamping position that matches the cup holder 610, so as to achieve a stable clamping of the cup holder 610.

[0041] It is understandable that, since adjacent cups 610 are in close contact with each other when they are conveyed on the conveyor line 200, in order to avoid the inaccurate weighing of a single battery 620 due to mutual contact after multiple cups 610 are horizontally pushed to the weighing mechanism 100, in some embodiments, referring to Figure 5 Specifically, the centers of any two adjacent first arc grooves 331 and the centers of any two adjacent second arc grooves 341 are staggered in the width direction of the conveying surface 210. This allows the first horizontal clamping plate 330 and the second horizontal clamping plate 340 to approach each other and clamp the multiple cups 610 between them. The central axes of any two adjacent cups 610 clamped will be staggered, thus enabling the cups 610 that were originally arranged and in contact with each other along the extension direction of the conveying surface 210 to be staggered and separated. After being horizontally pushed to the weighing mechanism 100 and released from the clamps, they can remain separated to achieve independent weighing.

[0042] It should be understood that, based on some of the above embodiments, the clamping assembly 300a further includes a connecting frame 360 ​​and a distance adjustment driver 370. The first vertical clamping plate 310 and the second vertical clamping plate 320 are both disposed on the connecting frame 360, and at least one of the first vertical clamping plate 310 and the second vertical clamping plate 320 is slidably disposed along the width direction of the conveying surface 210. The distance adjustment driver 370 connects the first vertical clamping plate 310 and / or the second vertical clamping plate 320, and is used to drive the first vertical clamping plate 310 and the second vertical clamping plate 320 to move closer to or further away from each other, so as to change the distance between the first vertical clamping plate 310 and the second vertical clamping plate 320. To ensure the cups 610 can be successfully clamped during subsequent clamping processes, the number of cups 610 entering the clamping mechanism 300 each time needs to match the number of the first arc groove 331 and the second arc groove 341. Therefore, during the conveying process on the conveying surface 210, the cups 610 entering the clamping mechanism 300 need to be arranged in a straight line one by one along the extension direction of the conveying surface 210. Thus, during the process of the cups 610 entering the clamping mechanism 300, the distance between the first upright clamping plate 310 and the second upright clamping plate 320 needs to be approximately the same as the diameter of the cups 610. However, due to the misalignment between the centers of any two adjacent first arc grooves 331 and the centers of any two adjacent second arc grooves 341, after clamping, any adjacent cups 610 will be misaligned in the width direction of the conveying surface 210. This again requires the first upright clamping plate 310 and the second upright clamping plate 320 to... The distance between the clamping plates 320 can be significantly larger than the diameter of a single cup 610. Therefore, by setting the distance adjustment driver 370 and slidably setting at least one of the first vertical clamping plates 310 and the second vertical clamping plates 320 along the width direction of the conveying surface 210, the distance between the first vertical clamping plates 310 and the second vertical clamping plates 320 can be adjusted by the distance adjustment driver 370 to be approximately the same as the diameter of the cup 610, so that the cups 610 can be arranged in a straight line along the extension direction of the conveying surface 210 and enter the clamping mechanism 300 one by one. After the required number of cups 610 have completely entered the clamping mechanism 300, the distance between the first vertical clamping plates 310 and the second vertical clamping plates 320 can be widened to a suitable size by the distance adjustment driver 370. Then, the first horizontal clamping plate 330 and the second horizontal clamping plate 340 can be driven to move closer to each other by the clamping driver 350 to achieve the staggered separation clamping of the cups 610.

[0043] It is understood that, in one embodiment, reference is made to... Figure 3 and Figure 4Specifically, the first vertical clamping plate 310 is fixedly connected to the connecting frame 360, and the second vertical clamping plate 320 is slidably connected to the connecting frame 360 ​​along the width direction of the conveying surface 210. The pitch adjustment driver 370 is disposed on the connecting frame 360 ​​and connected to the second vertical clamping plate 320, thereby enabling the second vertical clamping plate 320 to move closer to or further away from the first vertical clamping plate 310 to adjust the distance between them. Furthermore, specifically, the first horizontal clamping plate 330 is slidably connected to the lower end of the first vertical clamping plate 310 along the width direction of the conveying surface 210, and the second horizontal clamping plate 340... The clamping driver 350 is slidably connected to the connecting frame 360 ​​along the width direction of the conveying surface 210. Two clamping drivers 350 are provided. One clamping driver 350 is provided on the first vertical clamping plate 310 and connected to the first horizontal clamping plate 330. The other clamping driver 350 is provided on the second horizontal clamping plate 340 and connected to the connecting frame 360. The two clamping drivers 350 control the first horizontal clamping plate 330 and the second horizontal clamping plate 340 to move towards each other to clamp the cup 610, and control the first horizontal clamping plate 330 and the second horizontal clamping plate 340 to move away from each other to release the cup 610.

[0044] Meanwhile, to facilitate the horizontal movement of the entire clamping mechanism 300, the first horizontal pushing mechanism 400 is connected to the connecting frame 360. Furthermore, to facilitate the slidable connection of the second vertical clamping plate 320, the connecting frame 360 ​​is provided with a mounting plate 361 parallel to the first vertical clamping plate 310. The second vertical clamping plate 320 is positioned between the first vertical clamping plate 310 and the mounting plate 361. A guide rod 321 is provided on the side of the second vertical clamping plate 320 facing the mounting plate 361. A guide hole is provided on the mounting plate 361 to cooperate with the guide rod 321, thereby enabling the sliding installation of the second vertical clamping plate 320 through the cooperation of the guide rod 321 and the guide hole. The adjusting distance driver 370 is fixedly mounted on the mounting plate 361, and the driving part of the adjusting distance driver 370 is connected to the second vertical clamping plate 320, thereby driving the second vertical clamping plate 320 to move between the first vertical clamping plate 310 and the mounting plate 361.

[0045] Understandably, referring to Figure 3 and Figure 4 In one embodiment, to enable the sliding arrangement of the first horizontal clamping plate 330 and the second horizontal clamping plate 340, the first horizontal clamping plate 330 and the second horizontal clamping plate 340 are respectively provided with a first slide rail 332 and a second slide rail 342, while the first horizontal clamping plate 330 and the mounting plate 361 are provided with a first slider 311 and a second slider 362, and the first slider 311 and the second slider 362 are respectively connected to the first slide rail 332 and the second slide rail 342.

[0046] It should be understood that, in another embodiment, the first upright clamp 310 may be movably connected to the mounting plate 361, while the second upright clamp 320 may be fixedly connected to the connecting frame 360. The pitch driver 370 may be mounted and fixedly installed on the mounting plate 361, and the driving part of the pitch driver 370 may be connected to the first upright clamp 310. Alternatively, in another embodiment, two mounting plates 361 and two pitch drivers 370 may be provided on the connecting frame 360, and the second upright clamp 320 and the first upright clamp 310 may be slidably connected to the two mounting plates 361 along the width direction of the conveying surface 210. The two pitch drivers 370 may be mounted on the two mounting plates 361 respectively, and the driving parts of the two pitch drivers 370 may be connected to the first upright clamp 310 and the second upright clamp 320 respectively.

[0047] It should be understood that, in another embodiment, the first horizontal clamping plate 330 may be fixedly connected to the first vertical clamping plate 310 fixedly disposed on the connecting frame 360, while the second horizontal clamping plate 340 may be slidably connected to the lower end of the mounting plate 361 or the second vertical clamping plate 320 along the width direction of the conveying surface 210, and the clamping driver 350 may be mounted on the mounting plate 361, with the driving end connected to the second horizontal clamping plate 340; or, in another embodiment, the first horizontal clamping plate 330 may be slidably connected to the first vertical clamping plate 310 along the width direction of the conveying surface 210, while the second horizontal clamping plate 340 may be fixedly connected to the lower end of the mounting plate 361 or the second vertical clamping plate 320, and the clamping driver 350 may be mounted on the first vertical clamping plate 310, with the driving end connected to the second horizontal clamping plate 340.

[0048] In one embodiment, reference is made to Figure 3 and Figure 4 Both the clamping driver 350 and the pitch driver 370 are selected to be cylinders, and it is understood that in some other embodiments, the clamping driver 350 and the pitch driver 370 may also be selected to be other types of linear drivers such as electromagnetic push rods or linear motors.

[0049] Understandably, referring to Figure 6 and Figure 7In some embodiments, the weighing mechanism 100 includes a lifting platform 110, a first lifting driver 120, and multiple weighing scales 130. Each weighing scale 130 is correspondingly arranged with a clamping position, and each weighing scale 130 has a positioning part 131 on its top that mates with the bottom of the cup holder 610. The lifting platform 110 is positioned above the weighing scales 130, and the lifting platform 110 has multiple clearance holes 111 corresponding to each positioning part 131. The size of the clearance holes 111 is larger than... The size of the positioning part 131 is smaller than that of the cup holder 610, so that the positioning part 131 can pass through and prevent the cup holder 610 from passing through. The first lifting driver 120 is connected to the lifting platform 110 and can drive the lifting platform 110 to move between the receiving position and the avoidance position. When in the receiving position, the upper surface of the lifting platform 110 is flush with the conveying surface 210 and higher than the positioning part 131. When in the avoidance position, the positioning part 131 passes through the avoidance hole 111 and protrudes from the upper surface of the lifting platform 110. With the above structure, before the horizontal pushing mechanism 400 pushes the clamping mechanism 300 and the cup 610 carrying the battery 620 to the weighing mechanism 100, the first lifting driver 120 can drive the lifting platform 110 to move to the receiving position. Then, after the horizontal pushing mechanism 400 pushes the clamping mechanism 300 and the cup 610 to the weighing mechanism 100, since the upper surface of the lifting platform 110 is flush with the conveying surface 210, the cup 610 can be supported on the upper surface of the lifting platform 110. Then, the clamping driver 350 drives the first water... The flat clamp 330 and the second horizontal clamp 340 separate and release the cup 610. Then, the first lifting driver 120 drives the lifting platform 110 to move down to the clearance position. Since the positioning part 131, the clearance hole 111 and the cup 610 are all in one-to-one correspondence at this time, after the positioning part 131 passes through the clearance hole 111 and protrudes from the upper surface of the lifting platform 110, the cups 610 will be transferred to the corresponding positioning parts 131 one by one. This allows multiple cups 610 carrying batteries 620 to be weighed independently on different weighing scales 130.

[0050] It is understandable that, since the centers of the first arc groove 331 and the second arc groove 341 are offset in the width direction of the conveying surface 210, after the clamping mechanism 300 clamps the cup 610 and it is transferred to the lifting platform 110 by the horizontal pushing mechanism 400, the cups 610 will also be offset from each other. In order to ensure that each positioning part 131 and each clearance hole 111 can correspond to the position of the cup 610, in one embodiment, referring to Figure 6 and Figure 7 Similarly, the central axes of any two adjacent clearance holes 111 and the central axes of any two adjacent positioning parts 131 are offset in the width direction of the conveying surface 210.

[0051] It should be understood that, in addition to the lifting platform 110 mentioned above, in order to enable the horizontal pushing mechanism 400 to transfer multiple cups 610 to each weighing scale 130, in some other embodiments, a flat tray can also be provided on the top of each weighing scale 130, and the upper surface of the flat tray is on the same horizontal plane as the conveying surface 210 in the unloaded state, so that the horizontal pushing mechanism 400 can directly push the cups 610 onto the tray.

[0052] It is understandable that, in order to improve the accuracy and automation of battery weighing equipment, in some embodiments, the battery weighing equipment also includes a calibration mechanism 500, which is used to automatically calibrate and test the weighing scale 130; see reference. Figure 8 Specifically, the weighing mechanism 500 includes a transfer component, a suspension frame 520, and multiple weights 530. The multiple weights 530 are all suspended on the suspension frame 520 and are arranged one-to-one with the positioning part 131. The transfer component is connected to the suspension frame 520 and includes a horizontal movement driver 511 and a second lifting driver 512 connected to each other. The horizontal movement driver 511 drives the suspension frame 520 to move horizontally above the weighing scale 130, while the second lifting driver 512 drives the suspension frame 520 to lift. With the above structure, before weighing the battery 620, the lifting platform 110 can be driven to the clearance position by the first lifting driver 120. Then, the suspension frame 520 and the weight 530 can be driven to the top of the lifting platform 110 by the transverse driver 511. Then, the suspension frame 520 and the weight 530 can be driven to move down by the first lifting driver 120, so that each weight 530 is supported on each positioning part 131. Since the weight 530 is suspended on the suspension frame 520, when the weight 530 is supported on the positioning part 131, the weight 530 can be temporarily separated from the suspension frame 520, thereby avoiding the suspension frame 520 from affecting the calibration and detection of the weighing scale 130 by the weight 530.

[0053] It is understandable that, in order to achieve the suspension of the weight 530 on the suspension bracket 520, in some embodiments, reference is made to... Figure 9Specifically, the weight 530 includes a suspension part 531, a connecting part 532, and a main body part 533. The suspension part 531 is disposed at the top of the weight 530 and is connected to the main body part 533 through the connecting part 532. The suspension part 531 protrudes from the connecting part 532 in the radial direction. The suspension frame 520 is provided with a movable cavity 521 for accommodating the suspension part 531, a through hole 522 communicating with the movable cavity 521 and penetrating the lower end face of the suspension frame 520. The suspension part 531 is accommodated in the movable cavity 521 and can move up and down within the movable cavity 521. The main body part 533 is located at the top of the suspension frame. Below the frame 520, the connecting part 532 passes through the through hole 522; thus, before the bottom of the weight 530 contacts the positioning part 131, the weight 530 will, under its own weight, cause the suspension part 531 to abut against the lower cavity wall of the movable cavity 521, thereby suspending the weight 530 on the suspension frame 520 by means of the suspension part 531. When the weight 530 begins to contact the positioning part 131, the suspension part 531 will detach from the lower cavity wall of the movable cavity 521 and suspend in the movable cavity 521, thereby temporarily separating the weight 530 from the suspension frame 520.

[0054] It is understood that, in some embodiments of the present invention, reference is made to... Figure 1 The battery weighing equipment also includes a first stop mechanism 230 and a second stop mechanism 240 disposed on the conveyor line 200. The second stop mechanism 240 is disposed on the inlet side of the clamping mechanism 300, and the first stop mechanism 230 is disposed on the outlet side of the clamping mechanism 300. Through these two stop mechanisms, before the first batch of batteries 620 begins to be weighed, or after the previous batch of batteries 620 has been weighed, the first stop mechanism 230 can be in a stop state, while the second stop mechanism 240 is in an open clearance state. This allows the cups 610 conveyed on the conveyor line 200 to pass through the inlet of the clamping mechanism 300 and enter between the first vertical clamping plate 310 and the second vertical clamping plate 320, and to remain temporarily in the clamping machine under the obstruction of the first stop mechanism 230. In the clamping mechanism 300; subsequently, when the clamping mechanism 300 is filled with cups 610, the second stop mechanism 240 switches to the stop state to prevent the cups 610 from being continuously conveyed to the position of the clamping mechanism 300; then the clamping mechanism 300 can clamp the cups 610 and push them to the weighing mechanism 100 for weighing under the push of the horizontal pushing mechanism 400, and then push them back to the conveyor line 200 after weighing; after the clamping mechanism 300 returns to the conveyor line 200, the first stop mechanism 230 will switch to the open avoidance state, and the clamping driver 350 will drive the first vertical clamping plate 310 and the second vertical clamping plate 320 to move away from each other to the release position, so that the cups 610 in the clamping mechanism 300 are output from the outlet side of the clamping mechanism 300, thus completing one battery 620 weighing step.

[0055] It is understood that, in some of these embodiments, reference is made to... Figure 1 The conveyor line 200 includes limit bars 220. Along the conveying direction of the conveyor line 200, the limit bars 220 are disposed on the front and rear sides of the clamping mechanism 300. The limit bars 220 are located above the conveying surface 210 and are distributed on both sides of the width direction of the conveying surface 210. The spacing of the limit bars 220 in the width direction of the conveying surface 210 is approximately the same as the diameter of the cup 610, so that the cups 610 can be conveyed in a straight line along the extension direction of the conveying surface 210. In the conveying direction, the first stop mechanism 230 is disposed between the outlet end of the clamping mechanism 300 and the limit bar 220, and the second stop mechanism 240 is disposed between the inlet end of the clamping mechanism 300 and the limit bar 220; and specifically, both the first stop mechanism 230 and the second stop mechanism 240 include a stop driver and a stop block. The stop block is connected to the drive end of the stop driver and can be moved to the position of closing or opening the inlet or outlet of the clamping mechanism 300 under the drive of the stop driver.

[0056] In one embodiment, the stop actuator is selected to be a cylinder, and it is understood that in other embodiments, the stop actuator may also be selected to be other types of linear actuators such as electromagnetic push rods or linear motors.

[0057] It is understandable that, in order to increase the number of cups 610 that can be held in a single operation, in some embodiments, reference is made to... Figure 2 The clamping mechanism 300 includes two sets of clamping components 300a, which are closely arranged along the extension direction of the conveying surface 210. The horizontal pushing mechanism 400 includes a push driver 410 and a connecting plate 420. The connecting plate 420 is connected to the driving part of the push driver 410 and also connects the connecting frame 360 ​​in both clamping mechanisms 300. Thus, the push driver 410 can drive the two sets of clamping components 300a to move between the conveying line 200 and the weighing mechanism 100 simultaneously through the connecting plate 420.

[0058] Reference Figure 2 In one embodiment, the push driver 410 is selected to be a motor-driven lead screw and nut linear module, and it is understood that in other embodiments, the push driver 410 may also be selected to be other types of linear drivers such as cylinders or electromagnetic push rods.

[0059] It should be understood that, in addition to the option of providing two sets of clamping components 300a, in some other embodiments, the clamping mechanism 300 may also be provided with one or more sets of clamping components 300a.

[0060] The following describes a battery production line according to a second aspect of the present invention. The battery production line of this embodiment includes the battery weighing equipment described in the first aspect of the present invention. By using the battery weighing equipment described in the first aspect of the present invention, the weighing steps of the battery 620 are simplified to improve efficiency, and the problem of surface damage to the battery 620 is improved, thereby improving the quality of the finished battery 620.

[0061] It should be understood that the battery production line also includes battery liquid injection equipment, and the battery weighing equipment can be selectively arranged in front of or behind the battery liquid injection equipment along the flow direction of the batteries 620 in the battery production line. For example, in one embodiment, the battery weighing equipment is arranged in front of the battery liquid injection equipment along the flow direction of the batteries 620 in the battery production line to weigh the batteries 620 before liquid injection; or, in another embodiment, the battery weighing equipment is arranged behind the battery liquid injection equipment along the flow direction of the batteries 620 in the battery production line to weigh the batteries 620 after liquid injection; or, in another embodiment, multiple battery weighing equipment are provided, and along the flow direction of the batteries 620 in the battery production line, the battery weighing equipment is respectively arranged in front of and behind the battery liquid injection equipment to weigh the batteries 620 before and after liquid injection, thereby knowing the amount of liquid injected into the batteries 620 after passing through the battery liquid injection equipment.

[0062] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery weighing apparatus characterized by comprising: include: Weighing mechanisms are used for weighing. A conveyor line is provided on one side of the weighing mechanism and has a conveying surface for conveying a cup carrying a battery along the conveying surface. The clamping mechanism includes a clamping assembly, which includes a first vertical clamping plate, a second vertical clamping plate, a first horizontal clamping plate, a second horizontal clamping plate, and a clamping driver; the first vertical clamping plate and the second vertical clamping plate are located above the conveyor line and are respectively disposed on both sides of the width direction of the conveying surface to restrict the cup from falling out of the conveying surface; The first horizontal clamping plate and the second horizontal clamping plate are arranged opposite to each other and are respectively arranged below the first vertical clamping plate and the second vertical clamping plate. At least one of the first horizontal clamping plate and the second horizontal clamping plate is slidably arranged along the width direction of the conveying surface. The clamping driver is connected to the first horizontal clamping plate and / or the second horizontal clamping plate and is used to drive the first horizontal clamping plate and the second horizontal clamping plate to move closer or further away from each other in order to clamp or release the cup located between the first vertical clamping plate and the second vertical clamping plate. A horizontal pushing mechanism is connected to the clamping mechanism and is used to drive the clamping mechanism holding the cup to move horizontally between the conveying surface and the weighing mechanism; The first horizontal clamping plate has a plurality of first arc grooves on the side facing the second horizontal clamping plate, and the second horizontal clamping plate has a plurality of second arc grooves on the side facing the first horizontal clamping plate. Each second arc groove corresponds to one of the first arc grooves and together they form a clamping position that matches the cup holder. The centers of any two adjacent first arc grooves and the centers of any two adjacent second arc grooves are staggered in the width direction of the conveying surface. The weighing mechanism includes a lifting platform, a first lifting driver, and multiple weighing scales. Each weighing scale is corresponding to a clamping position, and each weighing scale has a positioning part on its top that mates with the bottom of the cup. The lifting platform is positioned above the weighing scales and has multiple clearance holes corresponding to each positioning part. The clearance holes are larger than the positioning part but smaller than the cup, allowing the positioning part to pass through while preventing the cup from passing through. The first lifting driver is connected to the lifting platform and can drive the lifting platform to move between a receiving position and a clearance position. In the receiving position, the upper surface of the lifting platform is flush with the conveying surface and higher than the positioning part. In the clearance position, the positioning part passes through the clearance hole and protrudes from the upper surface of the lifting platform. The central axes of any two adjacent clearance holes and the central axes of any two adjacent positioning parts are offset in the width direction of the conveying surface.

2. The battery weighing device according to claim 1, characterized in that, The clamping assembly further includes a connecting frame and a distance adjustment driver. The first vertical clamping plate and the second vertical clamping plate are both disposed on the connecting frame, and at least one of the first vertical clamping plate and the second vertical clamping plate is slidably disposed along the width direction of the conveying surface. The distance adjustment driver is connected to the first vertical clamping plate and / or the second vertical clamping plate and is used to drive the first vertical clamping plate and the second vertical clamping plate to move closer or further away from each other, so as to change the distance between the first vertical clamping plate and the second vertical clamping plate.

3. The battery weighing device according to claim 2, characterized in that, The horizontal pushing mechanism is connected to the connecting frame. The first vertical clamping plate is fixedly connected to the connecting frame. The second vertical clamping plate is slidably connected to the connecting frame along the width direction of the conveying surface. The adjustable distance driver is disposed on the connecting frame and connected to the second vertical clamping plate. The first horizontal clamping plate is slidably connected to the lower end of the first vertical clamping plate along the width direction of the conveying surface. The second horizontal clamping plate is slidably connected to the connecting frame along the width direction of the conveying surface. Two clamping drivers are provided. One clamping driver is disposed on the first vertical clamping plate and connected to the first horizontal clamping plate. The other clamping driver is disposed on the second horizontal clamping plate and connected to the connecting frame.

4. The battery weighing device according to claim 1, characterized in that, The battery weighing device also includes a calibration mechanism, which includes a transfer component, a suspension frame, and multiple weights. The multiple weights are all suspended on the suspension frame and are arranged one-to-one with the positioning part. The transfer component is connected to the suspension frame and includes a horizontal movement driver and a second lifting driver that are connected to each other. The horizontal movement driver is used to drive the suspension frame to move horizontally above the weighing scale, and the second lifting driver is used to drive the suspension frame to lift.

5. A battery weighing device according to claim 1, characterized in that, The battery weighing device further includes a first stop mechanism and a second stop mechanism disposed on the conveyor line. The second stop mechanism is disposed on the inlet side of the clamping mechanism, and the first stop mechanism is disposed on the outlet side of the clamping mechanism.

6. A battery production line, characterized in that, Includes the battery weighing device as described in any one of claims 1 to 5.

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