Variable-pitch buffer battery gripper and battery moving method

Abstract

The invention provides a variable-pitch buffer battery gripper and a battery moving method. The variable-pitch buffer battery gripper comprises a base frame; the pitch changing mechanism comprises a fixed plate, a movable plate and a movable sensing assembly, the movable sensing assembly comprises a movable sensor and a movable sensing piece, the movable sensor is fixedly arranged on the base frame, and the movable sensing piece is connected to the movable plate and synchronously moves along with the movable plate; and a clamping mechanism. The spacing distance of the clamping mechanisms is adjusted through the distance changing mechanism, so that it is ensured that the clamping mechanisms can be accurately matched with the feeding position point or the discharging position point, and the battery moving efficiency and quality are improved. According to the pitch changing mechanism, the accuracy degree of the pitch changing process is improved by means of the movable sensing assembly, and the reliability degree and the controllability degree of the pitch changing process are further improved. Based on the structural design, compared with a conventional battery material moving technology, the battery material moving device has the remarkable advantages of being high in use flexibility, wide in application scene, high in compatibility, capable of improving the battery processing efficiency and quality and the like.

Description

Technical Field

[0001] This invention relates to the field of battery transfer technology, specifically to a variable-pitch buffer battery gripper and a battery transfer method. Background Technology

[0002] In the automated battery production process, the process from batch feeding of material boxes to processing and transporting the materials is a key link connecting warehousing and production lines, which directly affects production efficiency and the degree of automation.

[0003] Currently, batteries are usually stored in bulk in boxes. The spacing between battery storage points in the boxes is designed based on storage density or requirements of previous processes. The size of this spacing often does not match the spacing between storage points on subsequent processing and transport vehicles.

[0004] This difference in the spacing between the points leads to significant challenges in the material transfer process: traditional material transfer equipment often uses a gripping structure with a fixed spacing. If this structure is used directly to pick up the material from the box and place it on the carrier, either the battery cannot be accurately placed into the carrier position due to mismatched spacing, or multiple adjustments are required in stages. This not only increases the material transfer time, but also easily causes problems such as battery displacement and collision due to repeated positioning, resulting in scratches on the battery casing or damage to the electrodes.

[0005] Therefore, how to achieve rapid and precise adjustment of the distance between different points between the material box and the carrier has become a key technical bottleneck in improving the efficiency of automated battery feeding and reducing the failure rate of the process. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the difficulty of changing the distance in the existing technology of battery transfer, and to provide a variable distance buffer battery gripper and battery transfer method.

[0007] To address the aforementioned technical problems, this invention provides a variable-pitch buffer battery gripper, comprising: a base frame connected to an external mobile device; a variable-pitch mechanism including a fixed plate, a movable plate, and a motion sensing component, wherein the fixed plate is fixedly connected to the base frame, the movable plate is slidably connected to the base frame and can move closer to / away from the fixed plate, the motion sensing component including a motion sensor and a motion sensing plate, the motion sensing plate being inserted into the motion sensor, wherein the motion sensor is fixed to the base frame, the motion sensing plate is connected to the movable plate and moves synchronously with the movable plate; and at least two clamping mechanisms symmetrically arranged on the fixed plate and the movable plate, for relative movement via the movable plate, wherein any one of the clamping mechanisms can clamp a battery to be transferred.

[0008] In one embodiment of the present invention, the pitch mechanism includes a pitch driver, a transmission assembly, and at least one pitch module. The pitch driver and at least one pitch module are both disposed on the base frame. The transmission assembly is connected between the working end of the pitch driver and the moving plate. The pitch module extends along a first direction, and the moving plate is slidably connected to the pitch module.

[0009] In one embodiment of the present invention, the transmission assembly includes a floating head, a snap-fit ​​component, and a connecting block. The connecting block is fixed to the movable plate, the snap-fit ​​component is connected to the connecting block and has a snap-fit ​​groove thereon, one end of the floating head is connected to the working end of the variable pitch driver, and the other end is detachably embedded in the snap-fit ​​groove.

[0010] In one embodiment of the present invention, the motion sensing component includes a first extension frame and at least two motion sensors. The first extension frame is connected to the base frame and extends along a first direction, and the at least two motion sensors are respectively adjustablely connected to the first extension frame.

[0011] In one embodiment of the present invention, the pitch-changing mechanism further includes at least two limiting members, which are respectively connected to the base frame and located on both sides of the moving plate in the first direction.

[0012] In one embodiment of the present invention, the clamping mechanism includes a frame, a fixed claw, and a movable claw. The frame is connected to the variable pitch mechanism, the fixed claw is fixedly connected to the frame, and the movable claw is slidably connected to the frame. The movable claw can move closer to / away from the fixed claw to clamp / release the battery to be transferred. Both the fixed claw and the movable claw are provided with anti-slip threads.

[0013] In one embodiment of the present invention, the clamping mechanism includes an opening and closing sensing component, which includes an opening and closing sensor, an opening and closing sensing plate, and a second extension frame. The second extension frame is connected to the frame body and extends along the moving direction of the moving claw. The opening and closing sensor is disposed on the second extension frame, and the opening and closing sensing plate is connected to the moving claw and can be inserted into the opening and closing sensor.

[0014] In one embodiment of the present invention, the clamping mechanism includes an overpressure floating assembly, which includes a telescopic rod, an elastic element, an overpressure sensor, and an overpressure sensing plate. The telescopic rod extends vertically, with one end connected to the frame and the other end passing through and connected to the pitch-changing mechanism. The elastic element is arranged around the telescopic rod, with its two ends abutting against the frame and the pitch-changing mechanism, respectively. The overpressure sensor is disposed on the pitch-changing mechanism, and the overpressure sensing plate is connected to the frame and can pass through the corresponding overpressure sensor.

[0015] In one embodiment of the present invention, the base frame includes a mounting plate, a protective frame, and an external connection. The pitch-changing mechanism is connected to the mounting plate and has a clearance slot. The pitch-changing driver and the moving plate are respectively disposed on both sides of the mounting plate in the thickness direction and connected through the clearance slot. The protective frame is disposed on one side of the mounting plate, and the external connection is fixed to the protective frame and connected to an external mobile device.

[0016] The present invention also provides a battery transfer method, which uses the above-mentioned variable-pitch buffer battery gripper for variable-pitch battery transfer, comprising: step S1, measuring the interval distance between the pick-up points and the interval distance between the release points respectively; step S2, adjusting the interval distance of at least two clamping mechanisms according to the interval distance of the pick-up points through a variable-pitch mechanism; step S3, moving the clamping mechanism to the pick-up point and clamping the battery to be transferred; step S4, moving the battery to be transferred to the release point, during which the interval distance of at least two clamping mechanisms is adjusted by the variable-pitch mechanism to be the same as the interval distance of the release point; step S5, moving the clamping mechanism to the release point and releasing the battery to complete the battery transfer process.

[0017] The technical solution of the present invention has the following advantages compared with the prior art: The variable-pitch buffer battery gripper and battery transfer method described in this invention adjusts the interval distance of the clamping mechanism through a variable-pitch mechanism, thereby ensuring precise matching between the clamping mechanism and the loading or unloading points. This not only improves battery transfer efficiency but also solves problems such as battery offset and collision caused by repeated positioning. The variable-pitch mechanism relies on a motion sensing component to enhance the accuracy of the variable-pitch process, further improving its reliability and controllability. Based on the above structural design, this invention, compared to current conventional battery transfer technologies, offers significant advantages such as high flexibility, wide applicability, strong compatibility, and improved battery processing efficiency and quality. Attached Figure Description

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the variable-pitch buffer battery gripper in a preferred embodiment of the present invention; Figure 2 yes Figure 1 A three-dimensional structural diagram of the variable-pitch buffer battery gripper from another perspective. Figure 3 yes Figure 1 The diagram shows the internal structure of the variable-pitch buffer battery gripper. Figure 4 yes Figure 1 The diagram shows a three-dimensional structural schematic of the pitch-changing mechanism and clamping mechanism in the middle of the pitch-changing buffer battery gripper. Figure 5 yes Figure 4 The side view of the pitch-changing mechanism and the clamping mechanism shown. Figure 6 yes Figure 1 The diagram shows a three-dimensional structural schematic of the clamping mechanism in the variable-pitch buffer battery gripper.

[0020] Explanation of reference numerals in the accompanying drawings: 100, base frame; 110, mounting plate; 111, clearance slot; 120, protective frame; 130, external connection part; 200, pitch control mechanism; 210, pitch control driver; 220, moving plate; 230, fixed plate; 240, limiting component; 250, motion sensing assembly; 251, motion sensor; 252, motion sensing element; 253, first extension frame; 260, pitch control module; 270, transmission assembly; 271, floating... 272. Head; 273. Snap-fit ​​component; 300. Connecting block; 310. Clamping mechanism; 320. Frame; 320. Fixed claw; 330. Moving claw; 340. Overpressure floating assembly; 341. Telescopic rod; 342. Elastic element; 343. Overpressure sensor; 344. Overpressure sensing plate; 350. Opening and closing sensing assembly; 351. Opening and closing sensor; 352. Opening and closing sensing plate; 353. Second extension frame; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0022] Example 1: See Figure 1As shown, this embodiment provides a variable-pitch buffer battery gripper, which includes: a base frame 100 connected to an external mobile device; a variable-pitch mechanism 200, which includes a fixed plate 230, a movable plate 220, and a motion sensing component 250. The fixed plate 230 is fixedly connected to the base frame 100, the movable plate 220 is slidably connected to the base frame 100, and can move closer to / away from the fixed plate 230. The motion sensing component 250 includes a motion sensor 251 and a motion sensing sheet 252. The movable sensing plate 252 can be inserted into the movable sensor 251, wherein the movable sensor 251 is fixed on the base frame 100, the movable sensing plate 252 is connected to the movable plate 220 and moves synchronously with the movable plate 220; at least two clamping mechanisms 300 are symmetrically arranged on the fixed plate 230 and the movable plate 220, so as to move relative to each other through the movable plate 220, and any clamping mechanism 300 can clamp a battery to be transferred.

[0023] The variable-pitch buffer battery gripper described in this embodiment adjusts the spacing of the clamping mechanism 300 through the variable-pitch mechanism 200, thereby ensuring precise matching between the clamping mechanism 300 and the loading or unloading points. This not only improves battery transfer efficiency but also solves problems such as battery offset and collision caused by repeated positioning. The variable-pitch mechanism 200 relies on the motion sensing component 250 to enhance the accuracy of the variable-pitch process, further improving its reliability and controllability. Based on the above structural design, compared with current conventional battery transfer technologies, this invention has significant advantages such as high flexibility, wide applicability, strong compatibility, and improved battery processing efficiency and quality.

[0024] It should be noted that, for ease of description, in this embodiment, the moving direction of the movable plate 220 in the variable pitch buffer battery gripper is defined as the first direction X, the width direction of the variable pitch buffer battery gripper is defined as the second direction Y, and the height direction of the variable pitch buffer battery gripper is defined as the third direction Z. The first direction X, the second direction Y, and the third direction Z are mutually perpendicular to each other, and the first direction X and the second direction Y are located in the same plane.

[0025] See Figure 2 and Figure 3As shown, the base frame 100 in this embodiment serves as the basic framework and mounting carrier for the entire variable-pitch buffer battery gripper. On one hand, it is securely connected to external mobile devices such as robotic arms, enabling the entire gripper to move and adjust its position following the external mobile device, thereby reaching the position of the battery to be gripped or completing the transfer of the battery. On the other hand, it provides a foundation for the installation and support of other components of the gripper, ensuring that each part of the structure can be stably assembled together and work collaboratively. Specifically, the base frame 100 in this embodiment includes a mounting plate 110, a protective frame 120, and an external connection part 130. The variable-pitch mechanism 200 is connected to the mounting plate 110, which has a clearance slot 111. The variable-pitch driver 210 and the moving plate 220 are respectively disposed on both sides of the mounting plate 110 in the thickness direction and connected through the clearance slot 111. The protective frame 120 is disposed on one side of the mounting plate 110, and the external connection part 130 is fixed to the protective frame 120 and connected to the external mobile device.

[0026] Furthermore, the clearance slot 111 on the mounting plate 110 enables further optimization of the structural layout. It allows the pitch drive 210 and the moving plate 220, located on opposite sides of the mounting plate 110 in the thickness direction, to be mechanically connected via connectors. This solves the power transmission problem and makes reasonable use of the space on both sides of the mounting plate 110, resulting in a more compact overall structure. The protective frame 120 serves to protect and strengthen the structure. Located on one side of the mounting plate 110, it provides physical protection for the core components such as the pitch drive 210 and transmission parts mounted on that side, preventing external objects from colliding with the components or dust, debris, and other impurities from affecting their operation. The external connection part 130 connects the base frame 100 to external mobile equipment and serves as the interface for force and motion transmission.

[0027] In this embodiment, the variable-pitch mechanism 200 is used to adjust the spacing between the clamping mechanisms 300. Specifically, the fixed plate 230 is fixedly connected to the base frame 100 and cooperates with the movable plate 220 to form a reference for relative movement. During the movement of the movable plate 220, the position of the fixed plate 230 remains unchanged, providing a stable mounting position for the clamping mechanisms 300 and ensuring a reference point when adjusting the spacing, facilitating accurate control of the distance between the two clamping mechanisms 300. The movable plate 220 is slidably connected to the base frame 100 and can move closer to or further away from the fixed plate 230. This movement drives the clamping mechanisms 300 mounted on it to move synchronously, thereby changing the spacing between the two symmetrically arranged clamping mechanisms 300 to accommodate batteries of different sizes and meet the gripping requirements of batteries of different specifications.

[0028] The motion sensor 251 is fixed on the base frame 100. When the motion sensing plate 252 moves synchronously with the moving plate 220 and passes through the motion sensor 251, the motion sensor 251 can transmit relevant signals to the control system by sensing the position change of the motion sensing plate 252. This enables precise monitoring and control of the moving distance and position of the moving plate 220, ensuring that the movement of the moving plate 220 meets expectations, and thus ensuring the accuracy of the spacing adjustment of the clamping mechanism 300. The motion sensing plate 252 is connected to the moving plate 220 and moves synchronously with it. When the moving plate 220 moves, the motion sensing plate 252 also moves, and its depth or position inside the motion sensor 251 changes. This allows the motion sensor 251 to detect these changes, indirectly reflecting the position of the moving plate 220 and providing a basis for the position control of the moving plate 220.

[0029] Further, the pitch-changing mechanism 200 in this embodiment includes a pitch-changing driver 210, a transmission assembly 270, and at least one pitch-changing module 260. The pitch-changing driver 210 and at least one pitch-changing module 260 are both disposed on the base frame 100. The transmission assembly 270 connects the working end of the pitch-changing driver 210 to the moving plate 220. The pitch-changing module 260 extends along a first direction X, and the moving plate 220 is slidably connected to the pitch-changing module 260. The pitch-changing driver 210 is fixedly mounted on the base frame 100, and its working end is connected to the moving plate 220 through the transmission assembly 270. It can output linear or rotational motion, providing driving force for the movement of the moving plate 220 towards or away from the fixed plate 230. In different embodiments, the pitch-changing driver 210 can be configured as a motor, cylinder, or other driving structure; this invention does not impose specific limitations on this. The transmission assembly 270 converts and transmits the motion form of the driver to the moving plate 220. The variable pitch module 260 provides guidance and support for the sliding of the moving plate 220, ensuring the smoothness and straightness of the movement.

[0030] Specifically, the transmission assembly 270 in this embodiment includes a floating head 271, a snap-fit ​​component 272, and a connecting block 273. The connecting block 273 is fixed to the moving plate 220. The snap-fit ​​component 272 is connected to the connecting block 273 and has a snap-fit ​​groove. One end of the floating head 271 is connected to the working end of the pitch driver 210, and the other end is detachably embedded in the snap-fit ​​groove. The floating head 271 can perform minor angle or position compensation within a certain range, which can alleviate the stress caused by installation errors and slight misalignment during movement between the pitch driver 210 and the moving plate 220, avoiding component wear or jamming caused by rigid connections and ensuring smooth power transmission. Simultaneously, the detachable connection facilitates installation, maintenance, and replacement. The snap-fit ​​component 272 forms an embedded connection with the floating head 271 through its snap-fit ​​groove. This structure allows for quick assembly and disassembly of the floating head 271 and the snap-fit ​​component 272, facilitating later maintenance and component replacement. The connecting block 273 directly transmits the power from the snap-fit ​​connector 272 to the movable plate 220, driving the movable plate 220 to slide along the variable pitch module 260. The connecting block 273 makes the connection between the snap-fit ​​connector 272 and the movable plate 220 more stable. At the same time, it can be designed with a suitable shape and size according to the installation requirements to adapt to the spatial layout between the movable plate 220 and the snap-fit ​​connector 272, ensuring the rationality and efficiency of the power transmission path.

[0031] In this embodiment, the motion sensing component 250 includes a first extension frame 253 and at least two motion sensors 251. The first extension frame 253 is connected to the base frame 100 and extends along a first direction X. The at least two motion sensors 251 are respectively adjustablely connected to the first extension frame 253. The first extension frame 253 provides a unified mounting platform for the at least two motion sensors 251. Its extension direction is consistent with the movement trajectory of the moving plate 220, ensuring that the motion sensors 251 can accurately detect different positions of the moving plate 220 on the movement path. Multiple motion sensors 251 are typically set to correspond to different movement requirements of the moving plate 220. When a motion sensing piece 252 moving synchronously with the moving plate 220 passes a certain motion sensor 251, the sensor emits an electrical signal, which is transmitted to the control system to determine whether the moving plate 220 has reached a preset position, thereby controlling the variable pitch driver 210 to stop or reverse, achieving precise limiting and control of the movement stroke of the moving plate 220.

[0032] In this embodiment, the pitch-changing mechanism 200 further includes at least two limiting members 240, which are respectively connected to the base frame 100 and located on both sides of the moving plate 220 in the first direction X. The limiting members 240 mechanically limit the movement range of the moving plate 220, restricting its maximum movement stroke. This design can serve as a dual protection mechanism to prevent the moving plate 220 from overtraveling in the event of failure or sudden movement of the motion sensing component 250, avoiding damage caused by rigid collision between the moving plate 220 and the base frame 100, the fixed plate 230, or other components due to excessive movement. At the same time, it can also prevent the clamping mechanism 300 from having too large or too small a spacing, which would affect the gripping stability, further improving the safety and reliability of the pitch-changing mechanism 200.

[0033] See Figures 4 to 6 As shown, the clamping mechanism 300 in this embodiment includes a frame 310, a fixed claw 320, and a movable claw 330. The frame 310 is connected to the variable pitch mechanism 200, the fixed claw 320 is fixedly connected to the frame 310, and the movable claw 330 is slidably connected to the frame 310. The movable claw 330 can move closer to / away from the fixed claw 320 to clamp / release the battery to be transferred. Both the fixed claw 320 and the movable claw 330 are provided with anti-slip threads. Specifically, this embodiment provides four clamping mechanisms 300, which are connected in pairs to the movable plate 220 and the fixed plate 230 respectively.

[0034] Furthermore, the fixed claw 320 serves as a fixed reference for the clamping action, cooperating with the movable claw 330 to clamp the battery. The movable claw 330 moves to open and close with the fixed claw 320, completing the clamping and releasing action of the battery. The cooperation between the fixed claw 320 and the movable claw 330 forms a clamping actuator that directly acts on the battery, while the anti-slip thread design addresses the stability requirements during battery transfer, improving the operational reliability of the entire clamping mechanism 300 and ensuring the safety of the battery during transport.

[0035] Specifically, the clamping mechanism 300 in this embodiment includes an opening / closing sensing component 350. The opening / closing sensing component 350 includes an opening / closing sensor 351, an opening / closing sensing plate 352, and a second extension frame 353. The second extension frame 353 is connected to the frame body 310 and extends along the moving direction of the moving claw 330. The opening / closing sensor 351 is disposed on the second extension frame 353, and the opening / closing sensing plate 352 is connected to the moving claw 330 and can pass through the opening / closing sensor 351. The second extension frame 353 serves as the mounting carrier for the opening / closing sensor 351, and its extension direction is consistent with the movement trajectory of the moving claw 330, ensuring that the sensor can accurately detect the position change of the moving claw 330 during the opening / closing process, while also providing a structural basis for sensor position adjustment. The opening / closing sensor 351 can generate an electrical signal through the position change of the sensing plate and transmit it to the control system. These signals can be used to determine whether the moving claw 330 has reached the clamping position or the release position, providing precise position feedback for the motion control of the moving claw 330. The opening and closing sensing plate 352 works in conjunction with the opening and closing sensor 351 to transmit the position information of the moving claw 330.

[0036] In this embodiment, the clamping mechanism 300 includes an overpressure floating assembly 340, which includes a telescopic rod 341, an elastic element 342, an overpressure sensor 343, and an overpressure sensing plate 344. The telescopic rod 341 extends vertically, with one end connected to the frame 310 and the other end passing through and connected to the pitch-changing mechanism 200. The elastic element 342 is arranged around the telescopic rod 341, with both ends abutting against the frame 310 and the pitch-changing mechanism 200, respectively. The overpressure sensor 343 is disposed on the pitch-changing mechanism 200, and the overpressure sensing plate 344 is connected to the frame 310 and can pass through the corresponding overpressure sensor 343. The overpressure floating component 340 can both buffer the overpressure impact at the physical level and monitor the overpressure status in real time at the control level and trigger the protection mechanism, effectively avoiding battery damage or equipment failure caused by accidental overpressure during operation of the clamping mechanism 300, and significantly improving the safety and reliability of the gripping operation.

[0037] Specifically, the telescopic rod 341 provides guidance for the vertical floating of the frame 310 relative to the pitch-changing mechanism 200. When the clamping mechanism 300 is subjected to vertical impact or pressure, the telescopic rod 341 can extend and retract with the frame 310 relative to the pitch-changing mechanism 200. At the same time, its rigid structure restricts the frame 310 to float only in the vertical direction, avoiding horizontal deviation and ensuring the stability and directionality of the floating action. When the clamping mechanism 300 is subjected to excessive vertical pressure when gripping or placing a battery, the frame 310 will compress the elastic element 342 and float upward relative to the pitch-changing mechanism 200. The deformation of the elastic element 342 absorbs the impact force, preventing rigid collisions from damaging the battery or the clamping mechanism 300. When the pressure disappears, the rebound force of the elastic element 342 can reset the frame 310 to its initial position, ensuring the normal working state of the clamping mechanism 300. An overpressure sensor 343 is mounted on the pitch mechanism 200 and works in conjunction with an overpressure sensing plate 344. When the frame 310 floats relative to the pitch mechanism 200 due to overpressure, the overpressure sensing plate 344 moves synchronously with the frame 310 and passes into the overpressure sensor 343. The sensor generates an electrical signal through the position change of the sensing plate and transmits it to the control system, thereby determining whether the clamping mechanism 300 has been subjected to excessive pressure, providing a signal basis for overpressure protection control.

[0038] Example 2:

[0039] This embodiment provides a battery transfer method, which uses the variable-pitch buffer battery gripper described in Embodiment 1 to perform variable-pitch battery transfer, and includes: Step S1: Measure the interval distance between the material taking points and the interval distance between the material discharging points respectively; Step S2: Adjust the interval distance of at least two clamping mechanisms 300 according to the interval distance of the material picking point through the variable pitch mechanism 200; Step S3: After moving the clamping mechanism 300 to the material picking point, clamp the battery to be moved; Step S4: Move the battery to be moved to the discharge point. During this process, the spacing between at least two clamping mechanisms 300 is adjusted by the pitch mechanism 200 so that it is the same as the spacing between the discharge point. Step S5: After moving the clamping mechanism 300 to the discharge point, release the battery to complete the battery transfer process.

[0040] In summary, the variable-pitch buffer battery gripper and battery transfer method described in this invention adjusts the interval distance of the clamping mechanism 300 through the variable-pitch mechanism 200, thereby ensuring precise matching between the clamping mechanism 300 and the loading or unloading points. This not only improves battery transfer efficiency but also solves problems such as battery offset and collision caused by repeated positioning. Specifically, the variable-pitch mechanism 200 relies on the motion sensing component 250 to enhance the accuracy of the variable-pitch process, further improving its reliability and controllability. Based on the above structural design, this invention, compared to current conventional battery transfer technologies, offers significant advantages such as high flexibility, wide applicability, strong compatibility, and improved battery processing efficiency and quality.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A variable-pitch buffer battery gripper, characterized in that: include: Base frame, which is connected to an external mobile device; A variable pitch mechanism includes a fixed plate, a movable plate, and a motion sensing component. The fixed plate is fixedly connected to the base frame, and the movable plate is slidably connected to the base frame and can move closer to / away from the fixed plate. The motion sensing component includes a motion sensor and a motion sensing plate. The motion sensing plate can be inserted into the motion sensor. The motion sensor is fixed on the base frame, and the motion sensing plate is connected to the movable plate and moves synchronously with the movable plate. At least two clamping mechanisms are symmetrically arranged on the fixed plate and the movable plate, so as to move relative to each other via the movable plate. Each clamping mechanism can clamp a battery to be transferred.

2. The variable-pitch buffer battery gripper according to claim 1, characterized in that: The pitch-changing mechanism includes a pitch-changing driver, a transmission assembly, and at least one pitch-changing module. The pitch-changing driver and at least one pitch-changing module are both disposed on the base frame. The transmission assembly is connected between the working end of the pitch-changing driver and the moving plate. The pitch-changing module extends along a first direction, and the moving plate is slidably connected to the pitch-changing module.

3. The variable-pitch buffer battery gripper according to claim 2, characterized in that: The transmission assembly includes a floating head, a snap-fit ​​component, and a connecting block. The connecting block is fixed to the moving plate. The snap-fit ​​component is connected to the connecting block and has a snap-fit ​​groove. One end of the floating head is connected to the working end of the variable pitch driver, and the other end is detachably embedded in the snap-fit ​​groove.

4. The variable-pitch buffer battery gripper according to claim 1, characterized in that: The motion sensing component includes a first extension frame and at least two motion sensors. The first extension frame is connected to the base frame and extends along a first direction. The at least two motion sensors are respectively adjustablely connected to the first extension frame.

5. The variable-pitch buffer battery gripper according to claim 1, characterized in that: The pitch-changing mechanism further includes at least two limiting members, which are respectively connected to the base frame and located on both sides of the moving plate in the first direction.

6. The variable-pitch buffer battery gripper according to claim 1, characterized in that: The clamping mechanism includes a frame, a fixed claw, and a movable claw. The frame is connected to the variable pitch mechanism, the fixed claw is fixedly connected to the frame, and the movable claw is slidably connected to the frame. The movable claw can move closer to / away from the fixed claw to clamp / release the battery to be transferred. Both the fixed claw and the movable claw are provided with anti-slip threads.

7. The variable-pitch buffer battery gripper according to claim 6, characterized in that: The clamping mechanism includes an opening and closing sensing component, which includes an opening and closing sensor, an opening and closing sensing plate, and a second extension frame. The second extension frame is connected to the frame body and extends along the moving direction of the moving claw. The opening and closing sensor is disposed on the second extension frame, and the opening and closing sensing plate is connected to the moving claw and can be inserted into the opening and closing sensor.

8. The variable-pitch buffer battery gripper according to claim 6, characterized in that: The clamping mechanism includes an overpressure floating assembly, which includes a telescopic rod, an elastic element, an overpressure sensor, and an overpressure sensing plate. The telescopic rod extends vertically, with one end connected to the frame and the other end passing through and connected to the pitch-changing mechanism. The elastic element is arranged around the telescopic rod, with its two ends abutting against the frame and the pitch-changing mechanism, respectively. The overpressure sensor is disposed on the pitch-changing mechanism, and the overpressure sensing plate is connected to the frame and can pass through the corresponding overpressure sensor.

9. The variable-pitch buffer battery gripper according to claim 1, characterized in that: The base frame includes a mounting plate, a protective frame, and an external connection. The pitch-changing mechanism is connected to the mounting plate and has a clearance slot. The pitch-changing driver and the moving plate are respectively located on both sides of the mounting plate in the thickness direction and are connected through the clearance slot. The protective frame is located on one side of the mounting plate, and the external connection is fixed to the protective frame and connected to an external mobile device.

10. A battery transfer method, characterized in that: The variable-pitch buffer battery gripper according to any one of claims 1 to 9 is used for variable-pitch battery transfer, comprising: Step S1: Measure the interval distance between the material taking points and the interval distance between the material discharging points respectively; Step S2: Adjust the interval distance between at least two clamping mechanisms according to the interval distance of the material picking point through the variable pitch mechanism; Step S3: After moving the clamping mechanism to the material picking point, clamp the battery to be moved; Step S4: Move the battery to be moved to the discharge point. During this process, adjust the spacing between at least two clamping mechanisms using a variable-pitch mechanism so that it is the same as the spacing between the discharge points. Step S5: After moving the clamping mechanism to the discharge point, release the battery to complete the battery transfer process.

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