Battery positioning device

Abstract

The utility model discloses a battery positioning device. The battery positioning device is used for assisting battery detection, and comprises a bearing platform arranged in detection equipment; the carrier is movably arranged on the bearing platform and is used for bearing a battery to be detected; and the positioning assembly is at least used for fixing a to-be-detected battery on the carrier and is used for positioning the carrier at a battery detection station of the detection equipment. The auxiliary positioning tool can meet the requirements of lossless CT tests of different models and different numbers of batteries at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery positioning device especially, belongs to battery detection technical field. BACKGROUND

[0002] The mainstream detection method for the internal defect detection of finished product of current battery manufacturing industry is CT detection, there are various needs in the detection process, such as tab detection, alignment detection, large area detection, overwelding detection and the like, different fixtures need to be used for different needs, and the size of battery is different, and more fixtures are needed, so that not only a large number of fixtures need to be made before detection, but also it is inconvenient for later management. Industrial CT has not been popularized in the three-dimensional imaging nondestructive testing of battery, therefore, at present, there is no special fixture that can be flexibly used, or only one battery can be shot at a time, and the efficiency is low. In addition, it is affected by the lifting amplitude of the built-in object table in the CT cavity (part of the equipment has no lifting function), and the scanning of different models of batteries is limited, and the CT equipment is expensive, and cannot be replaced at will according to the battery model or the main part (the cost is higher). SUMMARY

[0003] The main purpose of the utility model is to provide a battery positioning device, so as to overcome the defects in the prior art.

[0004] In order to realize the foregoing utility model purposes, the utility model adopts the technical scheme of:

[0005] The utility model embodiment provides a battery positioning device for assisting battery detection, which comprises:

[0006] A bearing platform is arranged in a detection device;

[0007] A carrier is movably arranged on the bearing platform and is used for bearing a battery to be detected; and

[0008] A positioning assembly is used for fixing the battery to be detected on the carrier and positioning the carrier at a battery detection station of the detection device.

[0009] In a more specific embodiment, the positioning assembly comprises a battery clamp and a to-be-measured angle positioning mechanism, the battery clamp is used for clamping the battery on the carrier along the horizontal direction;

[0010] The to-be-measured angle positioning mechanism is arranged on the bearing platform, the to-be-measured angle positioning mechanism can move along the vertical direction, is sleeved outside the battery, and exposes the to-be-measured angle of the battery.

[0011] Further, the bearing platform is provided with a support frame, the support frame is located at the battery detection station, the angle-to-be-detected positioning mechanism comprises a connecting rod and a positioning cap, the connecting rod is movably connected with the support frame, the connecting rod is configured to move vertically on the support frame, the positioning cap is fixedly arranged at the bottom end of the connecting rod and can move synchronously with the connecting rod, the positioning cap can be inverted on the battery, and the positioning cap is provided with a detection window for exposing the angle-to-be-detected.

[0012] Further, the positioning cap has a first slot structure, the detection window is in communication with the first slot structure, and the profile shape of the first slot structure is the same as that of the part of the battery close to the angle-to-be-detected.

[0013] Further, the first slot structure is a prism structure.

[0014] Further, the slot wall of the first slot structure is a flexible structure layer, or the slot wall of the first slot structure is provided with a flexible structure.

[0015] Further, the angle-to-be-detected positioning mechanism further comprises an elastic mechanism, two ends of the elastic mechanism are fixedly connected with the support frame and the connecting rod respectively, and when the connecting rod moves upward along the vertical direction, the elastic mechanism is in an elastic compression state.

[0016] Further, the battery clamp comprises at least two spaced-apart clamping arms, the clamping arms are movably connected with the support frame, and the clamping arms are configured to make clamping actions in the horizontal direction on the support frame.

[0017] Further, the angle-to-be-detected positioning mechanism and the battery clamp are drivingly connected through a transmission assembly, when the angle-to-be-detected positioning mechanism moves along the vertical direction and is sleeved on the battery, the battery clamp synchronously clamps the battery along the horizontal direction.

[0018] Further, the transmission assembly comprises a first gear rack, a second gear rack and a gear set, the first gear rack is fixedly arranged on the angle-to-be-detected positioning mechanism and extends along the vertical direction, the second gear rack is fixedly arranged on the battery clamp and extends along the horizontal direction, the gear set comprises at least one freely rotatable gear, the gear is arranged on the support frame, the gears included in the gear set are meshed with each other, and the gears included in the gear set are also respectively meshed with the first gear rack and the second gear rack.

[0019] In another more specific embodiment, the positioning assembly comprises a battery clamp and an adjusting knob, the battery clamp is arranged on the carrier, and the battery clamp is used for clamping a battery fixed on the carrier;

[0020] The adjusting knob is arranged on the carrier and can rotate relative to the carrier about its own axis, the carrying platform is provided with a plurality of positioning grooves arranged in sequence, and the adjusting knob is provided with a positioning tooth which is clamped into part of the positioning grooves to limit the relative movement of the carrier relative to the carrying platform.

[0021] Further, the battery clamp comprises at least two spaced-apart clamping arms, and the clamping arms are provided with a third rack extending in the horizontal direction.

[0022] The adjusting knob can also move linearly relative to the carrier between a first station and a second station in the horizontal direction, and the outer circumferential surface of the adjusting knob is further provided with an engagement tooth which is engaged with the third rack through a transmission gear.

[0023] When the adjusting knob moves to the first station in the horizontal direction, the engagement tooth drives the third rack to move close to the battery to be detected through the transmission gear, so that the battery clamp clamps the battery.

[0024] When the adjusting knob moves to the second station in the horizontal direction, the engagement tooth drives the third rack to move away from the battery to be detected through the transmission gear, so that the battery clamp releases the battery.

[0025] It should be noted that the third rack can be arranged on all clamping arms, or only on part of the clamping arms, so that part of the clamping arms in the battery clamp can also be driven to move.

[0026] Further, when the adjusting knob is in the first station, the positioning tooth on the adjusting knob is clamped into the positioning groove.

[0027] Further, the carrying platform is provided with a positioning rack extending in the horizontal direction, and the gap between any two adjacent engagement teeth on the positioning rack forms the positioning groove.

[0028] Further, the carrier is further provided with an elastic reset mechanism connected with the carrier and the adjusting knob, and the elastic reset mechanism provides an elastic force for driving the adjusting knob to return to the first station in the horizontal direction.

[0029] Further, the carrier is provided with a mounting hole, and at least part of the adjusting knob is arranged in the mounting hole.

[0030] Further, the carrier has a groove-shaped structure matched with the battery, a bottom of the groove-shaped structure is a right-angle structure, two side walls of the right-angle structure are respectively inclined at an angle of 45 degrees relative to the bearing platform, so that an angle of the battery located in the groove-shaped structure relative to the bearing platform is 45 degrees.

[0031] Further, the carrier is matched with the bearing platform in rolling or sliding.

[0032] Further, the battery positioning device further comprises a lifting mechanism, the bearing platform is on the lifting mechanism, and the lifting mechanism is used to drive the bearing platform to lift.

[0033] Compared with the prior art, the battery positioning device provided in the embodiment of the utility model has the advantages of simple structure, convenient use and operation, and the auxiliary positioning tool can simultaneously meet the nondestructive CT testing of different models and different numbers (1-5) of batteries. BRIEF DESCRIPTION OF DRAWINGS

[0034] 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 as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 is a structural schematic view of a battery positioning device provided in the embodiment 1 of the utility model;

[0036] Figure 2 is a structural schematic view of a battery positioning device provided in the embodiment 1 of the utility model;

[0037] Figure 3 is a structural schematic view of a positioning cap in the embodiment 1 of the utility model;

[0038] Figure 4 is a structural schematic view of a battery positioning device provided in the embodiment 2 of the utility model;

[0039] Figure 5 is a structural schematic view of a battery positioning device provided in the embodiment 2 of the utility model;

[0040] Figure 6 is a structural schematic view of a battery positioning device provided in the embodiment 2 of the utility model. DETAILED DESCRIPTION

[0041] In view of the deficiencies in the prior art, the present inventors have, through long-term research and a large number of practices, come up with the technical solution of the present application. The technical solution, its implementation process and principles will be further explained in combination with the accompanying drawings and specific implementation cases. Unless otherwise specified, the motor, air cylinder, guide rail, clamping arm spring and the like used in the embodiments of the present application can be obtained from the market, and their specific structures and product models are not limited. In addition, the support frame and carrier and the like involved in the embodiments of the present application can also be obtained by customization or conventional processes known in the art, and the specific structure is not limited.

[0042] It should be noted that the z-axis of the three-dimensional coordinate system in the embodiments of the present application is parallel to the vertical direction, and the xy plane is parallel to the horizontal direction.

[0043] Embodiment 1

[0044] Please refer to Figure 1 and Figure 2 A battery positioning device, comprising: a carrier 110, a bearing platform 120, a lifting mechanism 130, a support frame 140, a battery clamp 150 and a to-be-measured angle positioning mechanism 160;

[0045] The bearing platform 120 is arranged on the lifting mechanism 130 and located in a detection device (such as a turntable in a CT detection machine), and the bearing platform 120 can be lifted along the z-axis of a three-dimensional coordinate system under the drive of the lifting mechanism 130. The carrier 110 is used to carry a battery 300, and the carrier 110 is movably arranged on the bearing platform 120 and can move along the y-axis of the three-dimensional coordinate system with the bearing platform 120;

[0046] The support frame 140 is fixedly arranged on the bearing platform 120, and the position of the support frame 140 is a battery detection station. The battery clamp 150 and the to-be-measured angle positioning mechanism 160 are assembled on the support frame 140. The battery clamp 150 is used to clamp and fix the battery 300 located on the carrier 110 along the x-axis. The to-be-measured angle positioning mechanism 160 is movable along the z-axis of the three-dimensional coordinate system on the support frame 140, can be sleeved outside the battery 300, and exposes the to-be-measured angle of the battery 300 and faces the detection end of the CT machine and other detection devices.

[0047] It should be noted that when the carrier position is fixed, the positions of the to-be-measured angles of the batteries of different sizes placed on the carrier are different. Therefore, the carrier needs to be movably installed to adjust the to-be-measured angles of the batteries of different sizes to the accurate detection station.

[0048] In the embodiment, the angle positioning mechanism 160 to be tested includes a connecting rod 161, a positioning cap 162 and a spring 163, the support frame 140 has a first hole extending along the z-axis, the middle part of the connecting rod 161 is arranged in the first hole, the top end and the bottom end of the connecting rod 161 are exposed outside the first hole, the positioning cap 162 is located below the first hole along the z-axis and is fixedly connected with the bottom end of the connecting rod 161, the spring 163 is located in the first hole, and the two ends of the spring 163 are fixedly connected with the support frame 140 and the connecting rod 161 respectively. By pulling the positioning cap 162 upward along the z-axis and then releasing, the positioning cap 162 can be buckled on the angle to be tested of the battery 300 on the carrier 110 along the z-axis, and the elastic force provided by the spring 163 can keep the positioning cap 162 in the state of pressing the battery 300.

[0049] It should be noted that the connecting rod 161 is not a structure with uniform width / diameter, and the width / diameter of the connecting rod 161 exposed above the first hole is greater than the diameter / width of the connecting rod 161 located in the first hole, so as to limit the distance of the relative movement that can occur between the connecting rod 161 and the support frame 140. Such a structure design is known in the art, and details thereof will not be described herein.

[0050] In the embodiment, the structure of the positioning cap 162 is as shown in Figure 3 The positioning cap 162 has a first slot structure and a detection window, the profile shape of the first slot structure is the same as that of the part of the battery 300 close to the angle to be tested, and the detection window is located at the bottom of the first slot structure and is in communication with the first slot structure. When the positioning cap 162 is buckled on the battery 300, the part of the battery 300 close to the angle to be tested is attached to the surface of the first slot structure, and the angle to be tested is exposed from the detection window. Specifically, the first slot structure is a quadrangular pyramid structure which is the same as the structure of the part of the battery 300 close to the angle to be tested.

[0051] In the embodiment, in order to reduce the abrasion problem that the positioning cap may cause to the battery when the positioning cap is buckled on the battery and presses the battery, the slot wall of the first slot structure of the positioning cap is a flexible structure layer, or a flexible structure is arranged on the slot wall of the first slot structure. The flexible structure layer or the flexible structure can be a sponge gasket or a rubber gasket.

[0052] In the embodiment, the battery clamp 150 includes two clamp arms 151 which are arranged at intervals along the x-axis and are movably connected with the support frame 140. The clamp arms 151 are configured to be movable on the support frame 140 only along the x-axis. In order to limit the movement of the clamp arms 151 along the x-axis, a second hole extending along the x-axis is arranged on the support frame 140, and a part of the clamp arms 151 is movably arranged in the second hole. By driving the two clamp arms 151 to move towards or away from each other along the x-axis, the clamp arms 151 can clamp and fix the battery 300 or release the battery 300.

[0053] In the embodiment, in order to reduce the wear and tear problem that the battery clamp 150 may cause to the battery when clamping the battery, the surface layer part of the side of the two clamping arms 151 facing each other is a flexible structure layer, or the surface of the side of the two clamping arms 151 facing each other is provided with a flexible structure, which can be a sponge gasket or a rubber gasket, etc. It should be noted that the specific shape and structure of the clamping arm 151 are not limited here, as long as it can achieve clamping and releasing of the battery 300.

[0054] In order to better synchronize the positioning of the battery 300 on the x-axis and the z-axis and the positioning of the angle to be measured, in the embodiment, the angle-to-be-measured positioning mechanism 160 is drivingly connected with the battery clamp 150 through a transmission assembly. When the angle-to-be-measured positioning mechanism 160 moves along the z-axis, the battery clamp 150 moves synchronously along the x-axis. Specifically, the connecting rod 161 and the clamping arm 151 are drivingly connected through the transmission assembly. When the connecting rod 161 moves downward along the z-axis, at the same time, the two clamping arms 151 move closer to each other along the x-axis and clamp the battery 300. When the positioning cap 162 is inverted and buckled on the battery 300, the two clamping arms 151 complete the clamping of the battery 300. When the connecting rod 161 moves upward along the z-axis, the positioning cap 162 is separated from the battery 300, and the two clamping arms 151 move away from each other along the x-axis and release the battery 300.

[0055] In the embodiment, the transmission assembly includes a first rack, a second rack and a gear set 171. The first rack is fixedly arranged on the connecting rod 161 and extends along the z-axis. The second rack is fixedly arranged on the clamping arm 151 and extends along the x-axis. The gear set includes at least one freely rotatable gear. The gear set 171 is arranged on the support frame 140. The gears included in the gear set 171 are meshed with each other, and the gears included in the gear set 171 are also respectively meshed with the first rack and the second rack.

[0056] In the embodiment, the carrier 110 has a second slot-shaped structure adapted to the battery 300. The slot bottom of the second slot-shaped structure is a right-angle structure. The inclination angle of the battery 300 located in the second slot-shaped structure relative to the bearing platform 120 is 45°. It can be understood that the battery 300 is arranged in the second slot-shaped structure of the carrier 110, and the perpendicular line of the angle to be measured of the battery 300 located on the carrier 110 is parallel to the z-axis.

[0057] In the embodiment, the carrier 110 is rolling or slidingly matched with the bearing platform 120. Specifically, the carrier 110 can be provided with a sliding block, and the bearing platform 120 is provided with a guide sliding groove extending along the y-axis. The sliding block on the carrier 110 is arranged in the guide sliding groove, so as to realize the movement of the carrier 110 on the bearing platform 120. Of course, a linear drive motor or a cylinder, etc. can also be arranged on the bearing platform 120 to drive the translation of the carrier 110.

[0058] In the embodiment, the lifting mechanism 130 can be an x-shaped lifting frame or a hydraulic cylinder or the like capable of achieving z-axis linear driving.

[0059] Embodiment 2

[0060] Please refer to Figure 4 , Figure 5 and Figure 6 , a battery positioning device in the embodiment is to realize the positioning of the battery by using the battery clamp 240 and the adjusting knob 250, and other structures are basically similar to those in Embodiment 1. The differences between the two will be mainly introduced below, and the same parts will not be described in detail.

[0061] The battery positioning device in the embodiment comprises a carrier 210, a bearing platform 220, a lifting mechanism 230, a battery clamp 240 and an adjusting knob 250. The bearing platform 220 is arranged on the lifting mechanism 230 and can be lifted along the z-axis of a three-dimensional coordinate system under the driving of the lifting mechanism 230. The carrier 210 is movably arranged on the bearing platform 220. The battery clamp 240 and the adjusting knob 250 are arranged on the carrier 210. The battery clamp 240 is used to clamp and fix the battery 300 on the carrier 210. The adjusting knob 250 is movable along the x-axis of the three-dimensional coordinate system between a first station and a second station on the carrier 210 and is rotatable around its own axis (the axis of the adjusting knob is parallel to the x-axis). In addition, the adjusting knob 250 is in transmission cooperation with the battery clamp 240 and the bearing platform 220. By driving the adjusting knob 250 to move along the x-axis relative to the carrier 210, the battery clamp 240 can be driven to clamp or release the battery. By rotating the adjusting knob 250, the carrier 210 can be driven to translate along the y-axis of the three-dimensional coordinate system on the bearing platform 220.

[0062] In the embodiment, the carrier 210 has a groove-shaped structure adapted to the battery. The groove bottom of the groove-shaped structure is a right-angle structure. The angle of the battery located in the groove-shaped structure relative to the bearing platform 220 is 45°, that is, the two side walls of the right-angle structure are respectively inclined at an angle of 45° relative to the bearing platform. It should be noted that the perpendicular line of the angle to be measured of the battery located on the carrier 210 is parallel to the z-axis.

[0063] In the embodiment, the bearing platform 220 is provided with a positioning rack extending along the y-axis, and the gap between any two adjacent meshing teeth on the positioning rack forms a positioning groove. The adjusting knob 250 is provided with a positioning tooth 270 which is clamped into part of the positioning groove to limit the movement of the carrier 210 relative to the bearing platform 220. The battery clamp 240 includes two clamp arms 241 which are spaced apart along the x-axis, one of which is movably connected with the carrier 210, and the other of which is fixed on the carrier and can be moved along the x-axis on the carrier 210. The movable clamp arm is provided with a third rack extending along the x-axis. The adjusting knob can move linearly along the x-axis relative to the carrier 210 between the first station and the second station, and the outer circumferential surface of the adjusting knob 250 is further provided with an engagement tooth which is engaged with the third rack through a transmission gear 280. When the adjusting knob moves along the x-axis to the first station, the engagement tooth drives the third rack to move close to the battery to be detected through the transmission gear 280, so that the battery clamp 240 clamps the battery. When the adjusting knob 250 moves along the x-axis to the second station, the engagement tooth drives the third rack to move away from the battery to be detected through the transmission gear 280, so that the battery clamp 240 releases the battery. When the adjusting knob 250 is at the first station, the positioning tooth on the adjusting knob 250 is clamped into the positioning groove.

[0064] It should be noted that the positioning rack and the bearing platform 220 can be integrally provided.

[0065] In the embodiment, in order to reduce the possible wear and tear of the battery caused by the clamp arm when clamping the battery, the surface layer of the side of the two clamp arms facing each other is a flexible structure layer, or the surface of the side of the two clamp arms facing each other is provided with a flexible structure. The flexible structure layer or the flexible structure can be a sponge gasket or a rubber gasket, etc. It should be noted that the specific shape and structure of the clamp arm are not limited here, as long as it can clamp and release the battery.

[0066] In the embodiment, the carrier 210 is provided with a mounting hole extending along the x-axis, and a part of the adjusting knob 250 is arranged in the mounting hole and in contact with the battery clamp 240. It should be noted that the mounting hole provides guidance for the movement of the adjusting knob 250 along the x-axis, and also limits the adjusting knob 250, so that when the adjusting knob 250 is driven by the bearing platform 220, it can drive the carrier 210 to move on the bearing platform 220.

[0067] In the embodiment, the elastic reset mechanism 260 is further arranged on the carrier 210, and the elastic reset mechanism 260 is connected with the carrier 210 and the adjusting knob 250 respectively, and the elastic force provided by the elastic reset mechanism 260 is used to drive the adjusting knob 250 to return to the first working position along the x-axis. Specifically, the elastic reset mechanism 260 is arranged between the adjusting knob 250 and the carrier 210 along the x-axis, and in actual implementation, the elastic reset mechanism 260 can be a spring.

[0068] In the embodiment, the carrier 210 is rolling or sliding matched with the bearing platform 220, and specifically, the carrier 210 can be provided with a sliding block, and the bearing platform 220 is provided with a guide sliding groove extending along the y-axis, and the sliding block on the carrier 210 is arranged in the guide sliding groove, so that the movement of the carrier 210 on the bearing platform 220 is realized, and of course, a linear driving motor or a cylinder can be arranged on the bearing platform 220 to drive the translation of the carrier 210.

[0069] It should be noted that the battery 300 in the embodiment of the utility model is generally a soft package battery, which can refer to a single battery or a battery pack containing multiple batteries.

[0070] The battery positioning device provided in the embodiment of the utility model has simple structure, is convenient to use and operate, and the auxiliary positioning tool can simultaneously meet the nondestructive CT testing of batteries of different models and different quantities (1-5).

[0071] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A battery positioning device for assisting battery detection, characterized by, The application relates to a battery detection device, which comprises a bearing platform arranged in a detection device; a carrier movably arranged on the bearing platform and used for bearing a battery to be detected; and a positioning assembly used for fixing the battery to be detected on the carrier and positioning the carrier at a battery detection station of the detection device; wherein the positioning assembly comprises a battery clamp used for clamping the battery on the carrier in a horizontal direction and a to-be-detected-angle positioning mechanism arranged on the bearing platform and capable of moving in a vertical direction and sleeving the battery to expose a to-be-detected angle of the battery; a support frame is arranged on the bearing platform and located at the battery detection station; the to-be-detected-angle positioning mechanism comprises a connecting rod movably matched with the support frame and capable of moving in the vertical direction on the support frame and a positioning cap fixedly arranged at a bottom end of the connecting rod and capable of moving synchronously with the connecting rod; the positioning cap can be invertedly buckled on the battery, and a detection window for exposing the to-be-detected angle is arranged on the positioning cap. The positioning cap has a first slot-shaped structure, the detection window is communicated with the first slot-shaped structure, and the profile shape of the first slot-shaped structure is the same as that of a part of the battery close to the to-be-detected angle. The first slot-shaped structure is a prism structure. The slot wall of the first slot-shaped structure is a flexible structure layer, or a flexible structure is arranged on the slot wall of the first slot-shaped structure. The to-be-detected-angle positioning mechanism further comprises an elastic mechanism, two ends of the elastic mechanism are fixedly connected with the support frame and the connecting rod respectively, and the elastic mechanism is in an elastic compression state when the connecting rod moves upward in the vertical direction. The battery clamp comprises at least two spaced-apart clamping arms movably matched with the support frame and capable of clamping the battery in a horizontal direction on the support frame.

2. The battery positioning device of claim 1, wherein: The to-be-detected-angle positioning mechanism and the battery clamp are drivingly connected through a transmission assembly, the battery clamp synchronously clamps the battery in a horizontal direction when the to-be-detected-angle positioning mechanism moves in a vertical direction and sleeves the battery.

3. The battery positioning device of claim 2, wherein: The transmission assembly comprises a first gear rack, a second gear rack and a gear set, the first gear rack is fixedly arranged on the to-be-detected-angle positioning mechanism and extends in a vertical direction, the second gear rack is fixedly arranged on the battery clamp and extends in a horizontal direction, the gear set comprises at least one freely rotatable gear, the gear is arranged on the support frame, the gears in the gear set are mutually meshed, and the gears in the gear set are also respectively meshed with the first gear rack and the second gear rack.

4. The battery positioning device of claim 2, wherein: The positioning assembly comprises a battery clamp arranged on the carrier and used for clamping the battery fixed on the carrier and an adjusting knob.

5. The battery positioning device of claim 2, wherein: ​ 6. The battery positioning device of claim 1, wherein: ​ 7. The battery positioning device of any one of claims 2-6, wherein: ​ 8. The battery positioning device of claim 7, wherein: ​ 9. The battery positioning device of claim 1, wherein: ​ The adjusting knob is arranged on the carrier and can rotate relative to the carrier about its own axis, the carrying platform is provided with a plurality of positioning grooves arranged in sequence, and the adjusting knob is provided with a positioning tooth which is clamped into part of the positioning grooves to limit the horizontal movement of the carrier relative to the carrying platform.

10. The battery positioning device of claim 9, wherein: The battery clamp comprises at least two spaced-apart clamping arms provided with a third rack extending in the horizontal direction. The adjusting knob can also move linearly relative to the carrier between a first station and a second station in the horizontal direction, and the outer circumferential surface of the adjusting knob is further provided with an engagement tooth which is engaged with the third rack through a transmission gear. When the adjusting knob moves in the horizontal direction to the first station, the engagement tooth drives the third rack to move close to the battery to be detected through the transmission gear, so that the battery clamp clamps the battery. When the adjusting knob moves in the horizontal direction to the second station, the engagement tooth drives the third rack to move away from the battery to be detected through the transmission gear, so that the battery clamp releases the battery.

11. The battery positioning device of claim 10, wherein: When the adjusting knob is in the first station, the positioning tooth on the adjusting knob is clamped into the positioning groove.

12. The battery positioning device of claim 11, wherein: The carrying platform is provided with a positioning rack extending in the horizontal direction, and the gap between any two adjacent engagement teeth on the positioning rack forms the positioning groove.

13. The battery positioning device of claim 11, wherein: The carrier is further provided with an elastic return mechanism connected with the carrier and the adjusting knob, and the elastic return mechanism provides an elastic force for driving the adjusting knob to return to the first station in the horizontal direction.

14. The battery positioning device of claim 13, wherein: The carrier is provided with a mounting hole, and at least part of the adjusting knob is arranged in the mounting hole.

15. The battery positioning device of claim 1, wherein: The carrier has a groove structure matched with the battery, the groove bottom of the groove structure is a right-angle structure, and the two side walls of the right-angle structure are respectively inclined at an angle of 45° relative to the carrying platform, so that the angle of the battery located in the groove structure relative to the carrying platform is 45°.

16. The battery positioning device of claim 15, wherein: The carrier and the carrying platform are rolling or slidingly matched.

17. The battery positioning device of claim 15, wherein: The battery positioning device further comprises a lifting mechanism, and the carrying platform is arranged on the lifting mechanism, and the lifting mechanism is used to drive the carrying platform to lift.

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