Battery size measuring device

Abstract

The utility model relates to a battery size measuring device, which is characterized in that after a battery monomer to be measured enters a measuring station, a first driving assembly drives an execution assembly to descend towards the battery monomer along a Z direction until the battery monomer is moved into a measuring space through an opening of the measuring space, so that the size of the battery monomer is measured; and after the measurement is completed, the execution assembly is driven by the first driving assembly to ascend along the Z direction, so that the battery monomers are moved out of the measurement space. The measured single batteries are driven by the conveying mechanism to be continuously conveyed to the downstream, and the single batteries to be measured are sequentially conveyed to the measuring station by the conveying mechanism and are subjected to size measurement one by one. Therefore, in the size measurement process, the positions of the single batteries do not need to be manually adjusted. Therefore, the battery size measuring device can avoid errors caused by manual operation, so that the measuring precision can be remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing equipment technical field, especially a battery size measuring device. BACKGROUND

[0002] Before use and assembly, battery monomer generally needs to carry out size measurement to ensure that the size between each battery monomer has higher consistency. At present, the common size measurement mode is the semi-automatic form of manual and auxiliary tooling combination. The above measurement mode is low in cost, simple to use, but the measurement precision is low. SUMMARY

[0003] Therefore, it is necessary to provide a battery size measuring device capable of improving measurement precision in view of the above problems.

[0004] A battery size measuring device comprises:

[0005] A rack;

[0006] A conveying mechanism arranged on the rack, the conveying mechanism is configured to carry battery monomers and convey the battery monomers to a measurement station along an X direction; and

[0007] A measurement mechanism comprising a first driving assembly and an execution assembly, the execution assembly has a measurement space with an opening facing the measurement station, and the first driving assembly is connected with the execution assembly to enable the battery monomers entering the measurement station to move into or out of the measurement space through the opening of the measurement space.

[0008] In one embodiment, the conveying mechanism comprises a conveyor belt, and a plurality of placement grooves for accommodating battery monomers are formed on the carrying surface of the conveyor belt, and the plurality of placement grooves are distributed along the winding direction of the conveyor belt.

[0009] In one embodiment, the execution assembly comprises a measurement head and a plurality of abutting pieces distributed along the circumference of the measurement head, and the plurality of abutting pieces surround the measurement space, and the measurement head is connected with the plurality of abutting pieces respectively to enable the plurality of abutting pieces to move closer to or away from each other by driving the measurement head, and the displacement of the abutting pieces is obtained.

[0010] In one embodiment, the abutting piece comprises a push rod and a baffle, one end of the push rod is installed on the measurement head and can be telescoped under the driving of the measurement head, the other end of the push rod is connected with the baffle, and one end of the baffle away from the push rod extends towards the direction close to the measurement station.

[0011] In one of the embodiments, the measuring mechanism further comprises a fixed frame and a mounting frame, the fixed frame is mounted on the rack and is arranged across the two sides of the conveying mechanism in the Y direction, the first driving assembly is mounted on the fixed frame and is in driving connection with the mounting frame, and the executing assembly is mounted on the mounting frame.

[0012] In one of the embodiments, a plurality of first sliding rods extending in the Z direction are arranged on the fixed frame, and the mounting frame is slidably sleeved on the first sliding rods.

[0013] In one of the embodiments, a clamping mechanism is further included, and the clamping mechanism is arranged on the rack; the clamping mechanism comprises two clamping assemblies, the two clamping assemblies are oppositely arranged in the Y direction, and the two clamping assemblies move towards or away from each other in the Y direction.

[0014] In one of the embodiments, the clamping assembly comprises a clamping plate, a moving frame, a second sliding rod and a fixed block, the clamping plate is connected with the moving frame through the second sliding rod; the second sliding rod extends in the Y direction and is slidably arranged in the fixed block, and the fixed block is arranged on the rack.

[0015] The clamping mechanism further comprises a linkage driving assembly, the linkage driving assembly is connected with the two clamping assemblies, so that the two clamping plates are driven by the linkage driving assembly to move towards or away from each other in the Y direction.

[0016] In one of the embodiments, the linkage driving assembly comprises a rotating disc, a second driving assembly and two movable rods; the rotating disc is mounted on the rack and can rotate around an axis extending in the Z direction; one end of each of the two movable rods is rotatably mounted on the rotating disc, and the other end of each of the two movable rods is rotatably connected with the moving frame of the corresponding clamping assembly; the second driving assembly is in driving connection with the rotating disc, so that the rotating disc is driven to rotate by the second driving assembly.

[0017] In one of the embodiments, the second driving assembly comprises a driven gear, a driving gear and a motor, the rotating disc is fixed on the driven gear and is coaxially arranged with the driven gear, the driving gear is in meshing connection with the driven gear, and the diameter of the driving gear is smaller than the diameter of the driven gear; the driving gear is connected with the driving end of the motor, and the motor is mounted on the rack.

[0018] Compared with the prior art, the above battery size measuring device has at least the following beneficial effects:

[0019] The battery size measuring device, after the battery cell to be measured enters the measuring station, first drives the executing assembly to descend along the Z direction towards the battery cell by the first driving assembly until the battery cell is moved into the measuring space through the opening of the measuring space, so that the size of the battery cell is measured; after the measurement is completed, the executing assembly is driven to ascend along the Z direction by the first driving assembly, so that the battery cell is moved out of the measuring space. The battery cell after completing the measurement will continue to be conveyed downstream under the driving of the conveying mechanism, and the battery cell to be measured will be conveyed to the measuring station one by one by the conveying mechanism, and the size measurement is realized one by one. It can be seen that the position of the battery cell does not need to be adjusted manually during the size measurement. Therefore, the battery size measuring device can avoid the error caused by manual operation, so that the measurement accuracy can be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a structural schematic view of the battery size measuring device in an embodiment of the present application.

[0022] Figure 2 It is a structural schematic view of the battery size measuring device in an embodiment of the present application. Figure 1 It is an enlarged schematic view of part A of the battery size measuring device shown in the figure.

[0023] Figure 3 It is a structural schematic view of the battery size measuring device in an embodiment of the present application. Figure 1 It is a structural schematic view of the clamping mechanism of the battery size measuring device shown in the figure. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, many specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0027] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] It is to be understood that when an element as a preamble is referred to as being "on" or "disposed on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar terms as used herein are for the purpose of description only and are not intended to be limiting.

[0030] Referring to Figure 1 The battery size measuring device 100 in one embodiment of the present application comprises a rack 110, a conveying mechanism 120 and a measuring mechanism 130.

[0031] The rack 110 serves as a support and can be a frame structure formed by splicing metal plates and bars. The conveying mechanism 120 and the measuring mechanism 130 are installed on the rack 110. The conveying mechanism 120 is used to carry the battery monomer 200 and convey the battery monomer 200 along the X direction to the measuring station. The measuring mechanism 130 can measure the size of the battery monomer 200 entering the measuring station, thereby obtaining the size of the battery monomer 200. Specifically, the size of the battery monomer 200 can be length, width, thickness and diameter, etc.

[0032] Specifically, in this embodiment, the battery monomer 200 is a square cell, and the size measured by the measuring mechanism 130 includes the length and width of the battery monomer 200.

[0033] The conveying mechanism 120 can adopt the forms of conveyor belt conveying, chain conveying, roller conveying, etc. Specifically, in this embodiment, the conveying mechanism 120 comprises a conveyor belt, and the carrying surface of the conveyor belt is formed with a plurality of placing grooves 121 for accommodating the battery monomers 200. The plurality of placing grooves 121 are distributed along the winding direction of the conveyor belt. The placing grooves 121 can position the battery monomers 200 accommodated therein and prevent displacement of the battery monomers 200 during conveying. In this way, it is helpful to keep the positions of the battery monomers 200 entering the measuring station consistent, thereby ensuring that the measuring mechanism 130 can accurately measure the size thereof.

[0034] Referring to Figure 2 The measuring mechanism 130 comprises a first driving assembly 131 and an execution assembly 132. The execution assembly 132 has a measuring space (not labeled in the figure) with an opening facing the measuring station. The first driving assembly 131 is connected with the execution assembly 132, so that the battery monomer 200 entering the measuring station can move into or out of the measuring space through the opening of the measuring space.

[0035] In the actual application scenario, the execution assembly 132 is arranged at the measurement station and above the bearing surface of the conveying mechanism 120, and the execution assembly 132 can be lifted in the Z direction under the driving of the first driving assembly 131. Specifically, the Z direction refers to the up-down direction in the actual application scenario, and the battery cell 200 conveyed to the measurement station is below the execution assembly 132. Specifically, in this embodiment, the measurement space of the execution assembly 132 is rectangular, which can better match the shape of the can battery.

[0036] The first driving assembly 131 can drive the execution assembly 132 by using a cylinder, a hydraulic cylinder, or a motor threaded screw pair structure. As the first driving assembly 131 drives the execution assembly 132 to descend in the Z direction, the execution assembly 132 will gradually approach the battery cell 200 on the measurement station until the battery cell 200 is moved into the measurement space. At this time, the execution assembly 132 can measure the size of the battery cell 200 in the measurement space. After the measurement is completed, the first driving assembly 131 can drive the execution assembly 132 to ascend in the Z direction until the battery cell 200 moves out of the measurement space. At this time, the conveying mechanism 120 can continue to convey the battery cell 200 that has completed the measurement downstream, and convey the next battery cell 200 to be measured to the measurement station.

[0037] In this way, the battery cell 200 to be measured can be conveyed to the measurement station by the conveying mechanism 120 one by one, and the size measurement can be realized one by one. It can be seen that in the process of size measurement, the position of the battery cell 200 does not need to be adjusted manually, so as to avoid the error caused by manual operation, thereby significantly improving the measurement accuracy. Moreover, since the battery cell 200 does not need to be frequently carried back and forth for measurement, the probability of collision of the battery cell 200 can be reduced, and the efficiency of size measurement can be improved.

[0038] The execution assembly 132 can measure the size of the battery cell 200 in the measurement space in a contact or non-contact manner. Specifically, in this embodiment, the execution assembly 132 includes a measurement head 1321 and a plurality of abutting pieces 1322 distributed along the circumference of the measurement head 1321, and the plurality of abutting pieces 1322 surround the measurement space. The measurement head 1321 is connected with the plurality of abutting pieces 1322, respectively, so that the plurality of abutting pieces 1322 can be driven to approach or move away from each other by the measurement head 1321, and the displacement of the abutting piece 1322 can be obtained.

[0039] In the initial state, the measuring head 1321 drives the plurality of abutting members 1322 to move away from each other, so that the opening of the measuring space is large, thereby facilitating the movement of the battery monomer 200 into the measuring space. When starting the measurement, the measuring head 1321 drives the plurality of abutting members 1322 to move close to each other until the plurality of abutting members 1322 abut against the battery monomer 200 in the measuring space. At this time, the size of the battery monomer 200 can be obtained by the displacement amount of the abutting member 1322 compared with the initial state.

[0040] Specifically, the abutting members 1322 are distributed on both sides of the measuring head 1321 along the X direction and on both sides of the measuring head 1321 along the Y direction, so that the measuring space formed is rectangular. During the measurement, the length of the battery monomer 200 can be measured by obtaining the displacement amount of the abutting members 1322 on both sides along the X direction, and the width of the battery monomer 200 can be measured by obtaining the displacement amount of the abutting members 1322 on both sides along the Y direction.

[0041] Further, in the embodiment, the abutting member 1322 includes a push rod 1322a and a baffle 1322b, one end of the push rod 1322a is installed on the measuring head 1321 and can be extended and retracted under the drive of the measuring head 1321, the other end of the push rod 1322a is connected with the baffle 1322b, and the end of the baffle 1322b away from the push rod 1322a extends towards the direction close to the measuring station.

[0042] The abutting member 1322 formed by the push rod 1322a and the baffle 1322b is generally L-shaped, and the measuring space formed has a large depth, which can better accommodate the battery monomer 200, thereby facilitating the accurate measurement of the size of the battery monomer 200.

[0043] It should be noted that in other embodiments, the execution assembly 132 can also measure the size of the battery monomer 200 in the measuring space in other ways. For example, a laser ranging probe can be arranged in the measuring space, the laser probe can measure the distance between the battery monomer 200 moved into the measuring space and the inner wall of the measuring space, and the size of the battery monomer 200 can be obtained by conversion.

[0044] Alternatively, an ultrasonic wave probe capable of generating ultrasonic signals can also be arranged in the measuring space, and the size of the battery monomer 200 can also be quickly measured by receiving the echo signals and according to the time difference of the received echo signals.

[0045] In addition, in the embodiment, the measuring mechanism 130 further includes a fixed frame 133 and a mounting frame 134, the fixed frame 133 is installed on the rack 110 and straddles both sides of the conveying mechanism 120 along the Y direction, the first driving assembly 131 is installed on the fixed frame 133 and is in transmission connection with the mounting frame 134, and the execution assembly 132 is installed on the mounting frame 134.

[0046] The fixing frame 133 comprises a plurality of pillars (not shown in the figure) and a top plate (not shown in the figure), the pillars are distributed on both sides of the conveying mechanism 120 along the Y direction, the conveying mechanism 120 passes below the top plate, and the mounting frame 134 is located on the side of the top plate facing the conveying mechanism 120. The first driving assembly 131 is mounted on the side of the top plate away from the conveying mechanism 120, and the driving end thereof passes through the top plate and is in transmission connection with the mounting frame 134. Under the driving of the first driving assembly 131, the mounting frame 134 can drive the executing assembly 132 to ascend and descend. In this way, the structure of the battery size measuring device 100 is more compact.

[0047] Further, in the embodiment, a plurality of first sliding rods 1331 extending along the Z direction are arranged on the fixing frame 133, and the mounting frame 134 is slidably sleeved on the first sliding rods 1331.

[0048] Specifically, a plurality of sliding grooves (not shown in the figure) corresponding to the first sliding rods 1331 are arranged on the mounting frame 134, and the first sliding rods 1331 pass through the corresponding sliding grooves. The first sliding rods 1331 can limit and guide the mounting frame 134, so that the mounting frame 134 and the executing assembly 132 have higher stability during ascending and descending along the Z direction.

[0049] Please refer again to Figure 1 and refer to Figure 3 In the embodiment, the battery size measuring device 100 further comprises a clamping mechanism 140, which is arranged on the rack 110; the clamping mechanism 140 comprises two clamping assemblies 141, which are oppositely arranged along the Y direction and move towards or away from each other along the Y direction.

[0050] When the battery monomer 200 is driven by the conveying mechanism 120 to enter the measuring station, the two clamping assemblies 141 are first driven by the clamping mechanism 140 to move towards each other along the Y direction, so as to clamp and limit the battery monomer 200. Then, the first driving assembly 131 is started to drive the executing assembly 132 to descend along the Z direction, so as to measure the size of the battery monomer 200. Since the battery monomer 200 is limited by the clamping mechanism 140, the position of the battery monomer 200 can be well maintained during the measurement, so as to help further improve the measurement accuracy. After the measurement is completed, the two clamping assemblies 141 are driven by the clamping mechanism 140 to move away from each other to release the battery monomer 200, and the battery monomer 200 can be conveyed downstream under the driving of the conveying mechanism 120.

[0051] Specifically, in the embodiment, the clamping assembly 141 comprises a clamping plate 1411, a moving frame 1412, a second sliding rod 1413 and a fixed block (not labeled in the figure), the clamping plate 1411 is connected with the moving frame 1412 through the second sliding rod 1413; the second sliding rod 1413 extends along the Y direction and is slidably arranged in the fixed block, and the fixed block is arranged on the rack 110.

[0052] The fixed block can be fixed on the rack 110 by welding or threaded fastening, and a through hole (not shown in the figure) extending along the Y direction is arranged in the fixed block for the second sliding rod 1413 to pass through. The moving frame 1412 can drive the clamping plate 1411 to move along the Y direction through the second sliding rod 1413, which can improve the stability when the clamping plate 1411 clamps the battery monomer 200.

[0053] Further, the clamping mechanism 140 further comprises a linkage driving assembly 142, the linkage driving assembly 142 is connected with the two clamping assemblies 141, so as to drive the two clamping plates 141 to move towards or away from each other along the Y direction through the linkage driving assembly 142. It can be seen that the synchronization between the two clamping plates 1411 can be higher under the action of the same linkage driving assembly 142, which can ensure better centration when positioning the battery monomer 200.

[0054] Specifically, in the embodiment, the linkage driving assembly 142 comprises a rotating disc 1421, a second driving assembly 1422 and two movable rods 1423. The rotating disc 1421 is installed on the rack 110 and can rotate around an axis extending along the Z direction; one end of the two movable rods 1423 is rotatably installed on the rotating disc 1421, and the other end is rotatably connected to the two moving frames 1412 respectively; the second driving assembly 1422 is in transmission connection with the rotating disc 1421, so as to drive the rotating disc 1421 to rotate through the second driving assembly 1422.

[0055] The second driving assembly 1422 drives the rotating disc 1421 to rotate first, and the rotating disc 1421 can drive the two movable rods 1423 to swing. At the same time, the two movable rods 1423 can drive the moving frames 1412 connected thereto to slide along the Y direction, so as to drive the two clamping plates 1411 to move towards or away from each other along the Y direction through the corresponding second sliding rod 1413, so as to clamp or release the battery monomer 200. As can be seen, the two clamping plates 1411 can realize synchronous action under the driving of the same second driving assembly 142.

[0056] Specifically, the rotating disc 1421 is installed on the side of the rack 110 opposite to the conveying mechanism 120, and the second driving assembly 1422 is also located on the same side. Moreover, the moving frame 1412 is substantially L-shaped, so as to extend from below the conveying mechanism 120 to both sides of the conveying mechanism 120 along the Y direction. In this way, the clamping mechanism 140 can reasonably utilize the space below the rack 110, so as to make the structure of the battery size measuring device 100 more compact.

[0057] It should be noted that the clamping mechanism 140 does not interfere with the measurement process of the execution assembly 132 when clamping the battery monomer 200. Specifically, the two clamping plates 145 only contact the lower half of the side wall of the battery monomer 200 when clamping the battery monomer 200. During the size measurement process of the execution assembly 132, the abutting piece 1322 moves to contact the upper half of the side wall of the battery monomer 200. In this way, the clamping plate 145 does not interfere with the abutting piece 1322, thereby ensuring the accuracy of the measurement result.

[0058] Further, in the present embodiment, the second driving assembly 1422 includes a driven gear 1422a, a driving gear 1422b and a motor 1422c, the rotating disc 1421 is fixed to the driven gear 1422a and coaxially arranged with the driven gear 1422a, the driving gear 1422b is engaged with the driven gear 1422a, and the diameter of the driving gear 1422b is smaller than that of the driven gear 1422a; the driving gear 1422b is connected with the driving end of the motor 1422c, and the motor 1422c is installed on the rack 110.

[0059] The motor 1422c drives the rotating disc 1421 to rotate through the driving gear 1422b and the driven gear 1422a. Moreover, since the diameter of the driving gear 1422b is smaller than that of the driven gear 1422a, the torque of the motor 1422c can be amplified, thereby ensuring that the clamping plate 1411 can reliably clamp the battery monomer 200.

[0060] The battery size measuring device 100, after the battery cell 200 to be measured enters the measuring station, first drives the execution assembly 132 to descend along the Z direction by the first driving assembly 131, until the battery cell 200 is moved into the measuring space through the opening of the measuring space, so that the size of the battery cell 200 is measured; after the measurement is completed, the execution assembly 132 is driven to ascend along the Z direction by the first driving assembly 131, so that the battery cell 200 is moved out of the measuring space. The battery cell 200 that has completed the measurement will continue to be conveyed downstream under the driving of the conveying mechanism 120, and the battery cell 200 to be measured will be conveyed to the measuring station one by one by the conveying mechanism 120, and the size measurement is realized one by one. It can be seen that the position of the battery cell 200 does not need to be adjusted manually during the size measurement. Therefore, the battery size measuring device 100 can avoid the error caused by manual operation, so as to significantly improve the measurement accuracy.

[0061] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0062] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, on the premise of not departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A battery size measuring device, characterized by, The application relates to a battery cell measuring device. The device comprises a rack, a conveying mechanism arranged on the rack, the conveying mechanism being configured to carry battery cells and convey the battery cells to a measuring station along an X direction, and a measuring mechanism comprising a first driving assembly and an execution assembly, the execution assembly having a measuring space with an opening facing the measuring station, the first driving assembly being connected with the execution assembly to enable a battery cell entering the measuring station to move into or out of the measuring space through the opening of the measuring space. The execution assembly comprises a measuring head and a plurality of abutting pieces distributed along the circumference of the measuring head, the plurality of abutting pieces surrounding the measuring space, the measuring head being connected with the plurality of abutting pieces respectively to drive the plurality of abutting pieces to move closer to or away from each other through the measuring head and obtain the displacement of the abutting pieces. The conveying mechanism comprises a conveying belt, the conveying surface of the conveying belt being formed with a plurality of placement grooves for accommodating battery cells, the plurality of placement grooves being distributed along the arrangement direction of the conveying belt. The abutting piece comprises a push rod and a baffle, one end of the push rod being mounted on the measuring head and being able to stretch and retract under the drive of the measuring head, the other end of the push rod being connected with the baffle, one end of the baffle arranged away from the push rod extending towards the direction of approaching the measuring station. The measuring mechanism further comprises a fixing frame and a mounting frame, the fixing frame being mounted on the rack and being arranged on both sides of the conveying mechanism along a Y direction, the first driving assembly being mounted on the fixing frame and being in transmission connection with the mounting frame, the execution assembly being mounted on the mounting frame.

2. The battery sizing device of claim 1, wherein, A plurality of first sliding rods extending along a Z direction are arranged on the fixing frame, and the mounting frame is slidably sleeved on the first sliding rods.

3. The battery sizing device of claim 1, wherein, The device further comprises a clamping mechanism arranged on the rack, the clamping mechanism comprising two clamping assemblies, the two clamping assemblies being oppositely arranged along a Y direction and moving towards or away from each other along the Y direction.

4. The battery sizing device of claim 1, wherein, The clamping assembly comprises a clamping plate, a moving frame, a second sliding rod and a fixing block, the clamping plate being connected with the moving frame through the second sliding rod, the second sliding rod extending along the Y direction and being slidably arranged in the fixing block, and the fixing block being arranged on the rack.

5. The battery sizing device of claim 4, wherein, The clamping mechanism further comprises a linkage driving assembly, the linkage driving assembly being connected with the two clamping assemblies to enable the two clamping plates to move closer to or away from each other along the Y direction through the linkage driving assembly.

6. The battery sizing apparatus of any one of claims 1 to 5, wherein, The linkage driving assembly comprises a turntable, a second driving assembly and two movable rods, the turntable being mounted on the rack and being able to rotate around an axis extending along a Z direction, one end of each of the two movable rods being rotatably mounted on the turntable, and the other end of each of the two movable rods being rotatably connected with the moving frame of the clamping assembly respectively, and the second driving assembly being in transmission connection with the turntable to drive the turntable to rotate through the second driving assembly.

7. The battery sizing device of claim 6, wherein, The second driving assembly comprises a driven gear, a driving gear and a motor, the turntable being fixed on the driven gear and being coaxially arranged with the driven gear, the driving gear being in meshing connection with the driven gear, and the diameter of the driving gear being smaller than the diameter of the driven gear. ​ 8. The battery sizing device of claim 7, wherein, ​ 9. The battery sizing device of claim 8, wherein, ​ The main gear wheel is connected with the driving end of the motor, and the motor is installed on the rack.

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