Formation and capacity grading equipment with probe automatic distance adjustment function

Abstract

The invention discloses formation and capacity grading equipment with a probe automatic distance adjusting function. The formation and capacity grading equipment comprises a press machine frame, a lifting frame, a probe module and an automatic model changing and distance adjusting tool. A supporting assembly is arranged at the bottom of the press frame and used for placing a battery tray, and a guide rail is arranged at the upper end. The lifting frame is arranged in the press machine frame and ascends and descends in the vertical direction through a guide mechanism. The probe module is slidably connected to the press frame through a guide rail and comprises a module frame, probe assemblies and a probe bearing plate, a transverse sliding groove is formed in the bottom of the module frame, PCBs are installed in the module frame, the probe assemblies are installed on the probe bearing plate, the probe interfaces are connected with the PCBs in a one-to-one correspondence mode, and the transverse spacing of the probe bearing plate is adjusted through the transverse sliding groove. And the automatic model changing and distance adjusting tool is arranged in the press frame, drives the probe bearing plate to move, and adjusts the distance between the probe assemblies to adapt to the distance between poles of batteries of different models. And when the lifting frame is lifted upwards, the battery tray is driven to move upwards, so that the pole is electrically connected with the probe interface, and automatic distance adjustment is realized by matching with an automatic remodeling distance adjustment tool. According to the equipment, through automatic distance adjustment and accurate butt joint, the efficiency and adaptability of formation and capacity grading detection are improved.

Description

Technical Field

[0001] This invention relates to the field of battery capacity testing equipment technology, and specifically to a capacity testing equipment with automatic probe spacing adjustment. Background Technology

[0002] The press in lithium battery formation and capacity testing equipment is a core component that directly affects production line efficiency and product quality as it enables the critical processes of battery charging and discharging. The press system consists of modules such as a press frame, a lifting frame, a probe module, and a power supply system. The press frame provides structural support, the lifting frame is responsible for the precise lifting and positioning of the battery trays, the probe module completes the electrical connection between the positive and negative electrodes, and the power supply system ensures a stable power supply during the charging and discharging process. Furthermore, modern presses integrate intelligent functions such as battery tray entry and exit monitoring, pressing status detection, and automatic calibration, and possess compatible testing capabilities for multiple battery specifications.

[0003] The rapid iteration of lithium battery products has led to a growing market demand for flexible production. However, the fixed probe design used in traditional capacity testing presses has become a core bottleneck restricting production line flexibility. In existing technologies, the probe modules of capacity testing equipment typically employ a fixed probe design, making it impossible to quickly adjust the probe interface spacing. When producing batteries of different specifications, the probe positions must be manually adjusted one by one to match the battery terminal spacing. This process is time-consuming, inaccurate, and requires multiple operators. Statistics show that adjusting the probe spacing on a single production line typically requires 6-8 hours of downtime, involving the calibration of thousands of probe points, severely impacting the overall equipment efficiency (OEE). Furthermore, manual adjustment must be performed in confined spaces within the equipment or at heights, posing significant safety hazards such as operator falls or poor contact due to adjustment errors. Summary of the Invention

[0004] In order to overcome the technical defects of existing technologies, such as the inability to automatically adjust the probe position and the long time required for manual operation, this invention provides a chemical composition and capacity preparation device with automatic probe spacing adjustment.

[0005] To solve the above problems, the present invention is implemented according to the following technical solution:

[0006] The present invention provides a formulation and capacity testing device with automatic probe spacing adjustment, comprising:

[0007] A press frame, the bottom of which is provided with multiple support components for placing a battery tray, and the upper end of which has multiple guide rails;

[0008] A lifting frame is provided inside the press frame, and a plurality of guide mechanisms are provided between the lifting frame and the press frame. The lifting frame moves up and down along the vertical direction of the guide mechanisms.

[0009] A probe module is slidably connected to the inside of the press frame via a guide rail. The probe module includes a module frame, a probe assembly, and a probe support plate. A transverse sliding groove is installed at the bottom of the module frame. Several PCB boards are installed inside the module frame. The probe assembly is mounted on the probe support plate. The probe assembly includes multiple probe interfaces, each of which is connected to one of the PCB boards. The probe support plate is slidably connected to the transverse sliding groove, which is used to adjust the lateral movement distance of the probe assembly.

[0010] An automatic type-changing and spacing adjustment fixture is installed inside the press frame. The automatic type-changing and spacing adjustment fixture is used to drive the probe carrier plate to move along the long axis of the transverse sliding groove and adjust the spacing of the probe assembly to adapt to the electrode spacing of different battery models.

[0011] When the lifting frame is lifted upward, it moves the battery tray upward and electrically connects the terminal post of the battery tray to the probe interface; the automatic change-of-position adjustment fixture, in cooperation with the lifting frame, drives the probe module to achieve automatic adjustment of the distance.

[0012] Preferably, the guiding mechanism includes a plurality of sleeves and guide columns, the plurality of sleeves and guide columns are disposed at the four corners of the press frame, the sleeves are sleeved on the guide columns, and the sleeves are used to guide the lifting frame to move up and down along the vertical direction of the guide columns.

[0013] Preferred options also include:

[0014] A support assembly is provided within the press frame to support the automatic changeover and spacing adjustment fixture or battery tray.

[0015] Limit switch, which is located on the support assembly, is used to detect the storage status of the automatic change-of-grid tooling or battery tray;

[0016] The control system is used to control the lifting and lowering of the lifting frame, adjust the spacing of the automatic shape-changing and spacing-adjusting tooling, and control the charging and discharging process of the formation and capacity-forming equipment.

[0017] The press frame is equipped with an inbound through-beam sensor, which is used to detect the position status information of the battery tray and cooperates with the limit switch to feed back an inbound signal to the control system.

[0018] Preferably, the lifting frame is provided with a first positioning component and a cylinder assembly. The first positioning component is located on the lower surface of the lifting frame and cooperates with the bushing of the automatic shape-changing and distance-adjusting fixture to fix the automatic shape-changing and distance-adjusting fixture. The cylinder assembly is located inside the press frame and connected to the lifting frame to drive the lifting frame to move up and down in the vertical direction.

[0019] Preferably, the probe module is provided with a second positioning component and a locking device. The second positioning component is disposed on the probe support plate and cooperates with the positioning component of the automatic shape-changing and distance-adjusting fixture. The second positioning component is used to position the probe module. The locking device is installed in the transverse sliding groove and includes a locking screw with a nut sleeved on it, so that the locking device has a locked state and a loosened state.

[0020] When the locking device is in the locked state, the nut cooperates with the locking screw to lock and fix the probe carrier plate.

[0021] When the locking device is in the loosened state, the nut and the locking screw are released from their locking engagement, and the probe carrier plate can move on the transverse sliding groove. The nut of the locking screw is adapted to the automatic change-of-size and adjustment fixture. The locking device is used to automatically loosen and tighten the probe module.

[0022] Preferably, the automatic type-changing and spacing adjustment fixture includes:

[0023] A base plate is provided with a bushing, which cooperates with a first positioning component on the lifting frame to support the automatic shape-changing and distance-adjusting fixture.

[0024] A moving device, which is mounted on the base plate and connected to the transverse sliding groove, is used to drive the probe module to move along the long axis of the transverse sliding groove.

[0025] A locking mechanism is provided on the base plate and cooperates with the nut of the locking screw to perform the loosening and tightening operations of the locking screw.

[0026] Preferably, the mobile device includes:

[0027] The motor is mounted on the base plate;

[0028] A lead screw, which is connected to the motor and engages with the transverse sliding groove of the probe module;

[0029] A displacement sensor is provided on the probe module for real-time monitoring of the displacement of the probe module and feedback to the control system.

[0030] The motor drives the probe module to move along the transverse slide groove via the lead screw, thereby adjusting the probe interface spacing.

[0031] Preferably, the locking mechanism includes:

[0032] A torque socket wrench, which is adapted to the nut of the locking screw, is used to perform the loosening and tightening operations of the screw;

[0033] A torque sensor is installed on the torque socket wrench to detect the torque force of the screw in real time and feed it back to the control system.

[0034] The control system confirms whether the torque force of the screw has reached the preset value based on the feedback signal from the torque sensor.

[0035] Preferably, the probe module further includes:

[0036] A positive probe module, which includes multiple positive probe interfaces and is electrically connected to the positive interface of the PCB board;

[0037] A negative electrode probe module, which includes multiple negative electrode probe interfaces and is electrically connected to the negative electrode interface of the PCB board;

[0038] A negative pressure module is mounted on the mounting plate and is used to assist in fixing the battery and completing the battery negative pressure formation process.

[0039] The automatic type-changing and spacing adjustment fixture sequentially adjusts the spacing between the positive electrode probe module, the negative electrode probe module, and the negative pressure module.

[0040] Preferred options also include:

[0041] The fire-fighting device is arranged around the side of the press frame. The fire-fighting device includes a smoke detection component and a fire-fighting pipeline. The fire-fighting pipeline has a spray nozzle. The spray nozzle faces the probe module and battery tray area inside the press frame. The smoke detection component is used to detect the smoke concentration inside and around the press frame and send an alarm signal to the control system.

[0042] A power supply module is mounted on the lifting frame and electrically connected to the automatic changeover and adjustment fixture. It provides power and communication signals to the fixture. The power supply module includes an electrical interface and a signal transmission channel. The electrical interface is located on the lifting frame and connects to the power supply module of the automatic changeover and adjustment fixture. The signal transmission channel is connected to the electrical interface and is used to enable data interaction between the automatic changeover and adjustment fixture and the control system. The electrical interface provides a stable power supply, and the signal transmission channel is used to monitor and control the status of the automatic changeover and adjustment fixture.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] This invention discloses a type-forming and capacity-testing device with automatic probe spacing adjustment. Multiple support components at the bottom of the press frame stably support the battery tray, while upper guide rails provide sliding support for the probe module, ensuring stable operation and structural rigidity. A lifting frame, guided by a mechanism, vertically moves up and down, controlling the battery tray's upward movement for precise docking with the probe module, ensuring charge / discharge detection. The probe module is slidably connected to the press frame via guide rails. A transverse sliding groove at the bottom of the module frame, combined with the sliding connection of the probe carrier plate and several internal PCBs electrically connected to the probe interfaces, allows for flexible adjustment of the probe assembly's lateral movement distance, adapting to the terminal spacing of different battery models and ensuring signal transmission and detection accuracy. An automatic probe spacing adjustment fixture drives the probe carrier plate along the transverse sliding groove, automatically adjusting the probe spacing, eliminating the time and error associated with manual adjustment, reducing changeover time to a few minutes, significantly improving production efficiency, and simultaneously reducing safety risks for operators in confined spaces or at heights. The improved frame and automatic switching and spacing adjustment fixture enable precise electrical connection between the battery tray's terminals and probe interfaces, driving the probe module to complete automatic spacing adjustment. This enhances the equipment's automation level and compatibility with multiple battery specifications, solving the problems of low switching efficiency, insufficient accuracy, and significant safety hazards in traditional forming and capacity testing equipment. Attached Figure Description

[0045] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0046] Figure 1 This is a perspective view of a chemical composition and dispensing device with automatic probe spacing adjustment according to the present invention;

[0047] Figure 2 This is a side view of a chemical separation and capacity device with automatic probe spacing adjustment according to the present invention;

[0048] Figure 3 This is a perspective view of a probe module of a chemical composition and capacity device with automatic probe spacing adjustment according to the present invention.

[0049] Figure 4 This is a partially enlarged view of a probe module of a chemical composition and capacity device with automatic probe spacing adjustment according to the present invention.

[0050] Figure 5 This is a bottom view of a probe module of a chemical composition and capacity device with automatic probe spacing adjustment according to the present invention.

[0051] Figure 6 This is a perspective view of a lifting frame for a chemical composition and capacity preparation device with automatic probe spacing adjustment and an automatic changeover and spacing adjustment fixture adapted to each other according to the present invention.

[0052] Figure 7 This is a perspective view of a lifting frame for a chemical composition and capacity preparation device with automatic probe spacing adjustment and an automatic changeover and spacing adjustment fixture adapted to each other according to the present invention.

[0053] Figure 8 This is an enlarged view of part A of an automatic probe spacing adjustment tooling for a chemical composition and capacity preparation device according to the present invention.

[0054] Figure 9 This is a schematic diagram of the structure of an automatic probe spacing adjustment tooling for a chemical composition and capacity equipment according to the present invention.

[0055] Figure 10 This is a schematic diagram of the structure of a torque socket wrench for a chemical composition and capacity device with automatic probe distance adjustment according to the present invention;

[0056] In the picture:

[0057] 10-Pressing bed frame, 11-Support assembly, 111-Limit switch, 112-Inbound through-beam sensor, 12-Guide rail;

[0058] 20-Lifting frame, 21-Guide mechanism, 210-Sleeve, 211-Guide post, 22-First positioning component, 23-Cylinder assembly;

[0059] 30-Probe module, 31-Module frame, 310-Transverse slide, 32-Probe assembly, 320-Probe interface, 33-Probe carrier plate, 34-PCB board, 35-Second positioning component, 36-Locking device;

[0060] 40-Automatic changeover and adjustment fixture, 41-Base plate, 410-Sleeve, 42-Moving device, 420-Motor, 421-Lead screw, 422-Displacement sensor, 43-Locking mechanism, 430-Torque socket wrench, 431-Torque sensor;

[0061] 50-Fire-fighting device, 51-Smoke detector assembly, 52-Fire-fighting pipeline, 53-Sprinkler nozzle. Detailed Implementation

[0062] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0063] like Figures 1-10 As shown, the present invention provides a chemical composition and capacity testing device with automatic probe spacing adjustment, comprising:

[0064] The press frame 10 has multiple support components 11 at its bottom for placing a battery tray, and multiple guide rails 12 at its upper end.

[0065] The lifting frame 20 is located inside the press frame 10. Several guide mechanisms 21 are provided between the lifting frame 20 and the press frame 10. The lifting frame 20 moves up and down along the vertical direction of the guide mechanisms 21.

[0066] The probe module 30 is slidably connected to the inside of the press frame 10 via the guide rail 12. The probe module 30 includes a module frame 31, a probe assembly 32, and a probe support plate 33. A transverse sliding groove 310 is installed at the bottom of the module frame 31. Several PCB boards 34 are installed inside the module frame 31. The probe assembly 32 is installed on the probe support plate 33. The probe assembly 32 includes multiple probe interfaces 320. The probe interfaces 320 are connected to the several PCB boards 34 one by one. The probe support plate 33 is slidably connected to the transverse sliding groove 310. The transverse sliding groove 310 is used to adjust the transverse movement distance of the probe assembly 32.

[0067] Automatic type-changing and spacing adjustment fixture 40 is installed inside the press frame 10. Automatic type-changing and spacing adjustment fixture 40 is used to drive the probe carrier plate 33 to move along the long axis of the transverse sliding groove 310 and adjust the spacing of the probe assembly 32 to adapt to the electrode spacing of different battery models.

[0068] When the lifting frame 20 is lifted upward, it drives the battery tray to move upward and presses the battery terminals in the battery tray with the probe interface 320 to achieve electrical connection; the automatic change-of-position adjustment fixture 40, in cooperation with the lifting frame 20, drives the probe module 30 to achieve automatic adjustment of the distance.

[0069] This equipment includes a press frame 10, a lifting frame 20, a probe module 30, and an automatic shape-changing and spacing-adjusting fixture 40. The press frame 10, as the main structure of the equipment, is welded from high-strength steel to form a stable support skeleton. Multiple support components 11 are installed at its bottom; each support component 11 is a bracket structure fixed to the bottom of the press frame 10 to support the battery tray. Each support component 11 has a positioning groove to ensure accurate alignment of the battery tray during placement and prevent displacement. Multiple guide rails 12 are provided at the upper end of the press frame 10. The guide rails 12 are arranged horizontally and are high-precision linear guide rails, providing smooth track support for the sliding of the probe module 30.

[0070] The lifting frame 20 is located inside the press frame 10 and is connected to the press frame 10 via several guide mechanisms 21. Each guide mechanism 21 includes guide posts 211 and sleeves 210 installed at the four corners of the press frame 10. The guide posts 211 are cylindrical steel columns fixed between the bottom plate 41 and the top plate of the press frame 10. The sleeves 210 are made of wear-resistant material and slidably fit around the outside of the guide posts 211. The lifting frame 20 is driven by a cylinder assembly 23, which is fixed inside the press frame 10. The piston rod of the cylinder is connected to the lifting frame 20, and the lifting frame 20 moves vertically along the guide posts 211 under pneumatic control. A tray clamping mechanism is provided on the upper surface of the lifting frame 20 to secure the battery tray during lifting, ensuring that it moves upward synchronously with the lifting frame 20.

[0071] The probe module 30 is slidably connected to the inside of the press frame 10 via the guide rail 12, and can move horizontally along the guide rail 12. The probe module 30 consists of a module frame 31, a probe assembly 32, and a probe carrier plate 33. The module frame 31 is a rectangular frame structure, with several PCB boards 34 installed inside. The PCB boards 34 integrate charging and discharging control circuits for transmitting detection signals. A transverse sliding groove 310 is fixed at the bottom of the module frame 31. The transverse sliding groove 310 is a long strip track that extends horizontally along the module frame 31. The probe assembly 32 is mounted on the probe carrier plate 33. The probe assembly 32 includes multiple probe interfaces 320. Each probe interface 320 is electrically connected to a corresponding interface on the PCB board 34 via a wire to realize the transmission of signals and electrical energy. The probe carrier plate 33 is slidably connected to the transverse sliding groove 310 via a slider. The slider is fitted into the track of the transverse sliding groove 310, ensuring that the probe carrier plate 33 can move smoothly along the long axis of the transverse sliding groove 310, thereby adjusting the transverse spacing of the probe assembly 32.

[0072] It should be understood that, in this embodiment, the process of lifting the frame upwards, causing the battery tray to move upwards, and pressing the battery terminals inside the battery tray with the probe interface to achieve electrical connection is described in detail:

[0073] Once the control system confirms that the battery tray has been placed in place on the support assembly 11 at the bottom of the press frame 10 by the RGV (Rail Guided Vehicle) or manually, the electrical connection process is initiated. The control system sends a command to the cylinder assembly 23 located inside the press frame 10. This cylinder assembly 23 is a double-acting cylinder powered by an external air source, and its piston rod is connected to the bottom of the lifting frame 20.

[0074] The piston rod of the cylinder assembly 23 extends, driving the lifting frame 20 to move vertically upward without deviation along the guide mechanism 21 (composed of guide posts 211 and sleeves 210) located at the four corners of the press frame 10. The battery tray fixed to the upper surface of the lifting frame 20 rises synchronously.

[0075] like Figure 1 , Figure 2 and Figure 4 As shown, as the lifting frame 20 rises, the battery terminals in the battery tray gradually approach the probe module 30 directly above them. Each probe interface 320 on the probe assembly 32 is designed with a spring telescopic structure, providing a certain buffer stroke. When the top surface of the battery terminal initially contacts the contact end surface of the probe interface 320, the lifting frame 20 does not stop immediately, but continues to move upward a small distance (e.g., 1-3 mm) under the control of the control system.

[0076] This additional stroke compresses the spring inside the probe interface 320, allowing the probe to apply a continuous and stable preload pressure to the battery terminals. This pressing method ensures a good, low-impedance electrical connection between the battery terminals and the probe interface, effectively preventing signal interruption or overheating problems caused by poor contact, and guaranteeing the accuracy of data acquisition and the safety of the process during formation and capacity testing. The entire pressing process is controlled in a closed loop by the control system to ensure appropriate pressure and avoid damage to the battery terminals.

[0077] In this embodiment, there is a preferred implementation method, which is as follows:

[0078] The module frame 31 contains multiple PCB boards 34.

[0079] The probe assembly 32 is located at the bottom of the module frame 31. The probe assembly 32 includes multiple probe interfaces 320, which are connected to multiple PCB boards 34 in a one-to-one correspondence. Several transverse sliding grooves 310 are installed on the short axis of the bottom of the module frame 31. The probe assembly 32 is slidably installed on the transverse sliding grooves 310. The probe assembly 32 can move along the long axis of the transverse sliding grooves 310 and can be adapted to different battery models by moving the probe assembly 32.

[0080] The heat dissipation assembly includes a heat dissipation plate installed above the probe assembly 32. The heat dissipation plate is provided with multiple axial flow fans and multiple fixing slots for snapping onto the PCB board 34. The fixing slots are spaced apart from the axial flow fans.

[0081] Cable management components are located on the left and right sides of the module frame 31. The cable management components are used to organize the cables inside the module frame 31.

[0082] Among them, multiple PCB boards 34 are fixed in the fixing slots, the airflow channels of the multiple PCB boards 34 are located on the airflow path of the axial flow fan, and the lower end of each PCB board 34 is electrically connected to the probe assembly 32.

[0083] In this embodiment,

[0084] The module frame 31 is made of high-strength aluminum alloy and has a rectangular frame structure. The module frame 31 has a hollow ratio of over 90% to facilitate natural convection heat dissipation. It has multiple mounting positions for fixing the PCB board 34, which are evenly distributed along the long axis of the module frame 31. The bottom of the module frame 31 has several transverse sliding grooves 310 along the short axis, and the surface is polished to reduce friction.

[0085] The probe assembly 32 is mounted on the bottom of the module frame 31 and includes multiple probe interfaces 320. The probe interfaces 320 are made of copper alloy and nickel-plated to improve conductivity and corrosion resistance. The probe interfaces 320 are fixed to the probe carrier plate 33, which is slidably connected to the transverse sliding groove 310 via a sliding connector. The sliding connector is embedded in the groove, ensuring smooth movement of the probe carrier plate 33 along the long axis of the groove to accommodate the terminal spacing of different battery models. Each probe carrier plate 33 has a positioning pin hole that cooperates with the positioning pin of an external device to fix the position of the probe carrier plate 33. Red marking lines are provided at both ends of the probe carrier plate 33, and scale lines are engraved on the side of the transverse sliding groove 310 for visual indication of the transverse position of the probe carrier plate 33. The probe interfaces 320 are electrically connected to the signal interface of the corresponding PCB board 34 via a flexible cable with a high-temperature resistant silicone insulation layer. The probe assembly 32 is slidably mounted on the transverse sliding groove 310 via the probe carrier plate 33, allowing it to move freely along the long axis of the groove. In practical applications, for batteries of different models and with different electrode spacings, operators can adjust the lateral position of each probe interface 320 by moving the probe assembly 32 to achieve alignment and connection with the battery electrode posts, thereby adapting to different battery models.

[0086] The heat dissipation assembly includes a heat sink mounted above the probe assembly 32. The heat sink is made of polycarbonate insulating material and is fixedly supported inside the module frame 31 by pillars, located above the probe assembly 32. Multiple axial fans and mounting slots are evenly spaced on the heat sink, with the axial fans and mounting slots arranged alternately. The mounting slots are U-shaped and used to snap onto the PCB boards 34. Optionally, rubber buffer pads are provided inside the slots to prevent loosening. Multiple PCB boards 34 are fixed in these mounting slots by their edges being vertically snapped together. Each PCB board 34 is directly in the airflow path of one or more axial fans. The axial fans use an upward suction method to form a forced air cooling channel, rapidly removing the heat generated by the PCB board 34 and the high-current electronic components on it. The lower end of each PCB board 34 is electrically connected to the probe interface 320 via plug-in terminals.

[0087] Cable management components are located on the left and right sides of the module frame 31 and are used to organize the signal cables of the probe assembly 32. The cable management components are fixed to the side of the module frame 31 by support columns and are bolted to the module frame 31.

[0088] The probe assembly 32 moves within the transverse slide 310, allowing adjustment of the probe interface 320 spacing according to the battery model. Positioning pin holes ensure adjustment accuracy. The axial fan of the heat dissipation assembly generates vertical airflow, covering the PCB board 34 and the probe assembly 32, maintaining the surface temperature of the PCB board 34 within a safe range and ensuring high temperature uniformity. The cable management assembly neatly organizes the cables within the module, shortening cable lengths, reducing impedance and heat generation, and maintaining unobstructed airflow. The module supports high-current operation, significantly reducing changeover and adjustment time and improving production efficiency.

[0089] An automatic shape-changing and spacing-adjusting fixture 40 is located within the press frame 10, below the probe module 30, and is used to drive the lateral movement of the probe carrier plate 33. The automatic shape-changing and spacing-adjusting fixture 40 includes a base plate 41, a moving device 42, and a locking mechanism 43. The base plate 41 is a steel platform with a bushing 410 on it. The bushing 410 cooperates with the first positioning element 22 of the lifting frame 20 to fix the fixture position. The moving device 42 includes a motor 420 and a lead screw 421. The motor 420 is fixed to the base plate 41, and the lead screw 421 is connected to the output shaft of the motor 420 and cooperates with a nut structure at the bottom of the probe carrier plate 33. The motor 420 drives the lead screw 421 to rotate, and the threaded movement of the lead screw 421 causes the probe carrier plate 33 to move along the transverse sliding groove 310, thereby achieving precise adjustment of the spacing between the probe components 32. The moving device 42 also includes a displacement sensor 422, mounted on the probe carrier plate 33, which monitors the displacement of the probe assembly 32 in real time and provides feedback signals to ensure adjustment accuracy. The locking mechanism 43 includes a torque socket wrench 430 and a torque sensor 431. The torque socket wrench 430 cooperates with the locking screw on the probe carrier plate 33. By rotating the screw to loosen or tighten it, the probe module 30 is fixed or released. The torque sensor 431 detects the torque force of the screw in real time to ensure a stable locking state.

[0090] In actual operation, the battery tray is placed on the support component 11 at the bottom of the press frame 10 and fixed by the positioning slot. The lifting frame 20 is lifted upwards by the cylinder assembly 23, causing the battery tray to move upwards, so that the terminals on the battery tray contact the probe interface 320 of the probe module 30 and form an electrical connection. The automatic type-changing and spacing adjustment fixture 40, according to the terminal spacing requirements of different battery models, starts the motor 420 to drive the lead screw 421, causing the probe support plate 33 to move along the transverse sliding groove 310, adjusting the spacing of the probe assembly 32 to match the battery terminal position. After adjustment, the torque socket wrench 430 automatically tightens the locking screws, fixing the position of the probe module 30. The entire process, through the coordinated operation of the automatic type-changing and spacing adjustment fixture 40 and the lifting frame 20, achieves automatic spacing adjustment of the probe module 30 and docking of the battery tray, completing the charge / discharge test.

[0091] like Figure 1 and Figure 2 As shown, preferably, the guiding mechanism 21 includes a plurality of sleeves 210 and guide posts 211. The plurality of sleeves 210 and guide posts 211 are located at the four corners of the press frame 10. The sleeves 210 are sleeved on the guide posts 211. The sleeves 210 are used to guide the lifting frame 20 to move up and down along the vertical direction of the guide posts 211.

[0092] The guiding mechanism 21 includes several sleeves 210 and guide posts 211, which are located at the four corners of the press frame 10 to guide the lifting frame 20 in lifting and lowering. Specifically, the guide posts 211 are made of high-strength stainless steel, are cylindrical, and are fixed between the bottom plate 41 and the top plate of the press frame 10. The upper and lower ends of each guide post 211 are firmly connected to the press frame 10 by bolts to ensure its stability during equipment operation. Optionally, the sleeves 210 are made of wear-resistant polytetrafluoroethylene (PTFE), with an inner diameter matching the outer diameter of the guide posts 211. The sleeves 210 slide against the outside of the guide posts 211, forming a low-friction sliding fit. The outside of the sleeves 210 is connected to the lifting frame 20 via fixed seats, which are fastened to the four corners of the lifting frame 20 by screws, ensuring that the lifting frame 20 can smoothly rise and fall along the vertical direction of the guide posts 211. The design of the guide mechanism 21 enables the lifting frame 20 to move precisely up and down in the vertical direction under the drive of the cylinder assembly 23, avoiding deviation or swaying, thereby ensuring precise docking between the battery tray and the probe module 30 during the lifting process. The guide posts 211 at each corner, together with the sleeves 210, share the load of the lifting frame 20, ensuring the long-term stability and reliability of the equipment in high-frequency lifting operations.

[0093] Preferred options also include:

[0094] Support component 11 is located inside the press frame 10 and is used to support the automatic change-change and spacing adjustment fixture 40 or the battery tray.

[0095] Limit switch 111 is located on support assembly 11 and is used to detect the storage status of automatic change-adjustment tooling 40 or battery tray.

[0096] The control system is used to control the lifting and lowering of the lifting frame 20, adjust the spacing of the automatic changing and adjusting tooling 40, and control the charging and discharging process of the formation and capacity-enhancing equipment.

[0097] The inbound through-beam sensor 112 is mounted on the support assembly 11 and works in conjunction with the limit switch 111 to send an inbound signal to the control system.

[0098] The present invention is as follows Figures 6-8 As shown,

[0099] Support components 11 are housed within the press frame 10, employing a steel frame structure and fixed to the bottom of the press frame 10. They support the automatic changeover and adjustment fixture 40 or the battery tray. Each support component 11 is designed as a platform structure with a positioning groove, which is machined with high precision to ensure accurate alignment of the automatic changeover and adjustment fixture 40 or the battery tray during placement, preventing slippage or displacement. The support components 11 are securely connected to the base plate 41 of the press frame 10 via bolts, possessing sufficient load-bearing capacity to accommodate the weight of battery trays or fixtures of different sizes.

[0100] Limit switch 111 is installed on the edge of the positioning groove of support assembly 11. It employs a microswitch structure and uses mechanical contact to detect whether the automatic changeover and adjustment fixture 40 or the battery tray is fully inserted into the positioning groove. When the fixture or tray reaches the designated position, the contacts of limit switch 111 are triggered, generating an electrical signal to confirm the storage status. Limit switch 111 is connected to the control system via wires to ensure real-time signal transmission.

[0101] To ensure that the battery tray or automatic changeover and spacing adjustment fixture 40 accurately enters the designated station within the press frame 10, this equipment employs a dual-confirmation detection mechanism.

[0102] At the end of the positioning slot of the support assembly 11 for carrying the battery tray, a mechanical limit switch 111 is installed. When the battery tray is pushed into the positioning slot and reaches its deepest point, the edge of the tray will touch the trigger arm of the limit switch 111, causing it to close and sending a physical contact signal to the control system. This initially proves that an object has reached the predetermined endpoint.

[0103] On both sides of the support assembly 11, perpendicular to the battery tray's entry path, a pair of through-beam sensors 112 are installed. Each sensor optionally consists of an infrared emitter and a receiver, mounted opposite each other. When no battery tray is present, the receiver reliably receives the beam emitted by the emitter. When the battery tray enters and fully rests in the positioning slot of the support assembly 11, the tray's base blocks the optical path of the sensors. Unable to receive the beam, the receiver changes its output state and sends an optical signal to the control system.

[0104] The control system's logic is configured as an AND gate. The system will only determine that the warehousing is complete when it simultaneously receives a physical closing signal from limit switch 111 and a signal indicating that the optical path of the inbound through-beam sensor 112 is blocked.

[0105] The control system, serving as the core control unit, employs an embedded controller integrated into a control box within the press frame 10. Connected to the lifting frame 20, the automatic probe-changing and spacing-adjusting fixture 40, and the support assembly 11 via a communication interface, the control system coordinates the overall operation of the equipment. It receives signals from the limit switch 111 and the infeed through-beam sensor 112, and based on these signals, controls the cylinder assembly 23 of the lifting frame 20 to achieve lifting and lowering movements. This drives the motor 420 of the automatic probe-changing and spacing-adjusting fixture 40 to adjust the probe spacing. Furthermore, it manages the charging and discharging process of the capacity-forming equipment through an electrical connection with the PCB board 34. The control system has a built-in program module that automatically calculates and outputs adjustment commands based on the terminal spacing parameters of different battery models, ensuring accurate positioning of the probe module 30. Simultaneously, it monitors voltage and current parameters during charging and discharging to ensure detection accuracy.

[0106] like Figure 2 As shown, the inbound through-beam sensor 112 is installed on opposite sides of the support assembly 11.

[0107] Optional specific technology types include: infrared photoelectric sensor or laser beam sensor; in this embodiment, an infrared photoelectric sensor is specifically used, including a transmitter and a receiver.

[0108] In this device, the use of the inlet through-beam sensor 112 (especially when used in conjunction with the limit switch 111) has the following significant advantages:

[0109] 1. As an optical sensor, it can complete the detection without contact with the battery tray or tooling. This avoids sensor wear or damage caused by long-term mechanical collision and friction, thus extending the sensor's lifespan.

[0110] 2. The sensor and limit switch 111 jointly feed back the warehousing signal to the control system. The control system will only determine that warehousing is complete after simultaneously receiving the physical signal that limit switch 111 has been triggered and the optical signal that the light path of the through-beam sensor has been blocked. This "double insurance" design greatly improves the accuracy of the system's judgment and avoids equipment process errors caused by the failure or false triggering of a single sensor (for example, a foreign object accidentally touching limit switch 111).

[0111] 3. Because the transmitter and receiver of a through-beam photoelectric sensor are separate and the beam intensity is high, its detection stability and reliability are generally superior to other types of optical sensors in industrial environments with interference such as dust, oil, or stray light.

[0112] 4. The response time of photoelectric sensors is extremely short (usually in the millisecond range), which can instantly capture the position status of the tray or tooling.

[0113] When the automatic changeover and spacing adjustment fixture 40 or the battery tray enters the support assembly 11, the infrared beam is blocked, and the receiver generates an electrical signal, which, together with the signal from the limit switch 111, feeds back the storage status to the control system. The storage through-beam sensor 112 is connected to the control system via a wire, and its signal is used to confirm whether the storage position of the fixture or tray is correct and to trigger the control system to start subsequent operations, such as lifting the frame 20 or adjusting the spacing of the probe module 30. The limit switch 111 and the storage through-beam sensor 112 work together to improve the accuracy of storage status confirmation through dual detection and avoid misoperation.

[0114] like Figures 1-10 As shown, preferably, the lifting frame 20 is provided with:

[0115] The first positioning component 22 is located on the lower surface of the lifting frame 20 and cooperates with the bushing 410 of the automatic shape changing and adjusting tooling 40 to fix the automatic shape changing and adjusting tooling 40.

[0116] The cylinder assembly 23 is located inside the press frame 10 and is connected to the lifting frame 20. It is used to drive the lifting frame 20 to move up and down in the vertical direction.

[0117] The lifting frame 20 is located inside the press frame 10 and is used to support the battery tray and achieve lifting and lowering movements. The upper surface of the lifting frame 20 is provided with a first positioning element 22, which is a cylindrical steel pin fixed to the bottom of the lifting frame 20 by thread or welding, distributed at the four corners or key positioning points of the frame. The first positioning element 22 cooperates with the bushing 410 of the automatic shape-changing and adjusting fixture 40. The bushing 410 is a circular sleeve hole set on the fixture base plate 41, and its inner wall is made of wear-resistant material to ensure precise engagement with the first positioning element 22. When the automatic shape-changing and adjusting fixture 40 is placed on the support assembly 11 inside the press frame 10, the lifting frame 20 descends, and the first positioning element 22 inserts into the bushing 410, forming a firm mechanical connection, thereby fixing the automatic shape-changing and adjusting fixture 40 and ensuring its stability and alignment accuracy during the adjusting operation.

[0118] The cylinder assembly 23 is installed inside the press frame 10 and adopts a double-acting cylinder structure, including a cylinder body, a piston rod, and a pneumatic control valve. The cylinder body is located on the lower section of the top of the press frame 10, and the top of the piston rod is connected to the lifting frame 20 through a flange connector. The cylinder is powered by an external air source, and the pneumatic control valve regulates the airflow to drive the piston rod to extend and retract, thereby driving the lifting frame 20 to move smoothly up and down along the vertical direction of the guide mechanism 21. The control signal of the cylinder assembly 23 is connected to an external control unit through wires to precisely adjust the lifting height and speed of the lifting frame 20 according to operational requirements. When the lifting frame 20 is lifted upward, it moves the battery tray fixed on it upward, so that the terminal of the battery tray can achieve precise electrical connection with the probe interface 320 of the probe module 30; when it is lowered, it releases the battery tray or docks with the automatic changeover and spacing adjustment fixture 40. The cylinder assembly 23 cooperates with the sleeve 210 and guide post 211 of the guide mechanism 21 to ensure that the lifting frame 20 does not deviate during the lifting process and maintains the stability of the equipment operation.

[0119] In this embodiment, the first positioning component 22 on the lifting frame 20 is precisely matched with the bushing 410 of the automatic shape-changing and spacing adjustment fixture 40, and the cylinder assembly 23 is smoothly driven, so as to realize the reliable fixation and precise lifting of the lifting frame 20, ensure the docking accuracy between the battery tray and the probe module 30, and provide support for the efficient and automated operation of the formation and capacity testing equipment.

[0120] The probe module 30 is provided with a second positioning element 35 and a locking device 36. The second positioning element 35 is disposed on the probe support plate 33 and cooperates with the positioning element of the automatic shape-changing and distance-adjusting fixture 40. The second positioning element 35 is used to position the probe module 30. The locking device 36 is installed on the transverse sliding groove 310. The locking device 36 includes a locking screw and a nut is sleeved on the locking screw, so that the locking device 36 has a locked state and a loosened state.

[0121] When the locking device 36 is in the locked state, the nut cooperates with the locking screw to lock and fix the probe carrier plate 33.

[0122] When the locking device 36 is in the loosened state, the nut and the locking screw are released from the locking engagement, the probe carrier plate 33 can move on the transverse sliding groove 310, the nut of the locking screw is adapted to the automatic change-of-size adjustment fixture 40, and the locking device 36 is used to automatically loosen and tighten the probe module 30.

[0123] like Figure 4 As shown in this embodiment, specifically,

[0124] The second positioning element 35 is mounted on the probe carrier plate 33 and employs a high-precision machined circular positioning hole structure, distributed at the four corners of the probe carrier plate 33. The inner wall of the positioning hole is made of wear-resistant stainless steel bushing to enhance durability and reduce friction. The second positioning element 35 cooperates with the positioning element on the automatic change-of-motion and adjustment fixture 40, specifically the positioning pin on the base plate 41 of the automatic change-of-motion and adjustment fixture 40. The positioning pin is a cylindrical steel structure, fixed to the surface of the base plate 41 by threads or welding, and its outer diameter matches the inner diameter of the positioning hole of the second positioning element 35. When the automatic change-of-motion and adjustment fixture 40 enters the press frame 10 and docks with the lifting frame 20, the second positioning element 35 (positioning hole) on the probe carrier plate 33 engages with the positioning pin of the automatic change-of-motion and adjustment fixture 40, ensuring the precise alignment of the probe module 30 during the lateral adjustment process and preventing deviations caused by vibration or movement.

[0125] A locking device 36 is installed in the transverse slide 310 for automatically releasing and securing the probe module 30. The locking device 36 includes a locking screw. The locking screw hole is a threaded hole on the probe support plate 33, located at the sliding connection between the probe support plate 33 and the transverse slide 310, corresponding to the track groove of the transverse slide 310. The locking screw is made of high-strength alloy steel, with its cup head fitted into the track groove of the transverse slide 310. By rotating through the locking screw hole, the threaded end extends out of the probe support plate 33. The nut of the locking screw has a hexagonal structure and cooperates with the locking mechanism 43 of the automatic change-of-motion and adjustment fixture 40. The locking mechanism 43 is a component of the automatic change-of-motion and adjustment fixture 40, including a torque socket wrench 430, fixed to the fixture base plate 41. After the probe carrier plate 33 is adjusted to the target position along the transverse sliding groove 310, the torque socket wrench 430 of the automatic change-of-motion adjustment fixture 40 rotates the locking screw to connect the nut and the screw, fixing the probe carrier plate 33 to the transverse sliding groove 310. When loosened, the torque socket wrench 430 rotates in the opposite direction, releasing the fixing force of the locking screw and allowing the probe carrier plate 33 to slide to adjust the spacing of the probe assembly 32. The locking device 36, in cooperation with the locking mechanism 43, realizes the automatic loosening and fixing of the probe module 30, ensuring the positioning accuracy after spacing adjustment.

[0126] This embodiment achieves accurate positioning and fixation of the probe module 30 through the alignment and engagement of the second positioning component 35 with the positioning pin of the automatic type-changing and spacing adjustment fixture 40, and the cooperation between the locking device 36 of the probe module 30 and the locking mechanism 43 of the automatic type-changing and spacing adjustment fixture 40. This ensures the alignment accuracy and operational efficiency of the probe assembly 32 in the testing of different battery models, and provides support for the automated spacing adjustment of the formation and capacity testing equipment.

[0127] like Figures 6-9 As shown, the preferred automatic type-changing and spacing adjustment fixture 40 includes:

[0128] The base plate 41 is provided with a bushing 410, which cooperates with the first positioning part 22 on the lifting frame 20 to support the automatic shape changing and adjusting tooling 40.

[0129] The moving device 42 is mounted on the base plate 41 and connected to the transverse sliding groove 310, and is used to drive the probe module 30 to move along the long axis of the transverse sliding groove 310.

[0130] The locking mechanism 43 is located on the base plate 41 and cooperates with the nut of the locking screw to perform the loosening and tightening operations of the locking screw.

[0131] An automatic shape-changing and spacing-adjusting fixture 40 is installed inside the press frame 10 to drive the probe module 30 for automatic spacing adjustment. The base plate 41 is made of high-strength steel, forming a rectangular platform structure. It is fixed to the support assembly 11 at the bottom of the press frame 10 via positioning slots, ensuring stable placement of the fixture. The base plate 41 is equipped with bushings 410, which are circular holes made of wear-resistant stainless steel and distributed at the four corners or key positioning points of the base plate 41. The inner diameter of the bushings 410 matches the first positioning element 22 (cylindrical positioning pin) on the lifting frame 20. When the lifting frame 20 descends, the first positioning element 22 inserts into the bushings 410, achieving precise alignment between the base plate 41 and the lifting frame 20, ensuring the positioning accuracy of the automatic shape-changing and spacing-adjusting fixture 40 during operation.

[0132] The moving device 42 is mounted on the base plate 41 and connected to the transverse sliding groove 310 of the probe module 30, used to drive the probe module 30 to move along the long axis of the transverse sliding groove 310. The moving device 42 includes a motor 420, a lead screw 421, and a slider assembly. The motor 420 is a servo motor 420, fixed on the base plate 41, and driven to rotate by a control signal. The lead screw 421 is connected to the output shaft of the motor 420, adopts a high-precision thread structure, and is horizontally mounted on the base plate 41. The slider assembly is fixed to the bottom of the probe support plate 33, engages with the track of the transverse sliding groove 310, and also engages with the thread of the lead screw 421. The rotation of the motor 420 drives the lead screw 421 to rotate, and the thread movement of the lead screw 421 drives the slider assembly to move along the transverse sliding groove 310, thereby adjusting the spacing of the probe assemblies 32 in the probe module 30 to adapt to the terminal spacing of different battery models. The moving device 42, through the precise control of the motor 420, ensures the accurate movement distance of the probe module 30, meeting the requirements for high-precision distance adjustment.

[0133] The locking mechanism 43 is mounted on the base plate 41 and engages with the nut of the locking screw of the locking device 36 of the probe module 30 to perform the loosening and tightening operations of the locking screw. The locking mechanism 43 includes a torque socket wrench 430, fixed in a bracket structure on the base plate 41. The sleeve 210 portion of the torque socket wrench 430 matches the hexagonal nut of the locking screw. When the probe carrier plate 33 is adjusted to the target position along the transverse sliding groove 310, the torque socket wrench 430 receives a control signal, rotates the locking screw, connects the nut to the screw, and fixes the probe carrier plate 33 in the transverse sliding groove 310. When loosening, the torque socket wrench 430 rotates in the opposite direction, releasing the fixing force of the locking screw and allowing the probe carrier plate 33 to slide for the next adjustment. The locking mechanism 43, through automated rotation, achieves rapid fixing and loosening of the probe module 30, improving adjustment efficiency.

[0134] like Figure 9 As shown, preferably, the mobile device 42 includes:

[0135] Motor 420, motor 420 is mounted on base plate 41;

[0136] Lead screw 421 is connected to motor 420 and cooperates with transverse sliding groove 310 of probe module 30;

[0137] Displacement sensor 422 is mounted on probe module 30 and is used to monitor the displacement of probe module 30 in real time and feed it back to control system.

[0138] The motor 420 drives the probe module 30 to move along the transverse slide 310 via the lead screw 421, so as to adjust the spacing of the probe interface 320.

[0139] The moving device 42 is mounted on the base plate 41 of the automatic changeover and spacing adjustment fixture 40 and connected to the transverse sliding groove 310 of the probe module 30. It drives the probe module 30 to move along the long axis of the transverse sliding groove 310 to adjust the spacing of the probe interfaces 320. The motor 420 is a servo motor 420, fixed to the motor 420 bracket on the base plate 41 and connected to the base plate 41 by bolts to ensure operational stability. The output shaft of the motor 420 is connected to the lead screw 421 via a coupling. The motor 420 receives a control signal and is driven to rotate, providing precise power output. The lead screw 421 is a high-precision ball screw 421, horizontally mounted on the base plate 41, with its threaded end engaging with the transverse sliding groove 310 of the probe module 30. Specifically, the thread of the lead screw 421 engages with the nut structure at the bottom of the probe support plate 33, and the nut is fixed to the probe support plate 33, aligning with the track groove of the transverse sliding groove 310. When the motor 420 drives the lead screw 421 to rotate, the threaded motion causes the nut and probe support plate 33 to move along the long axis of the transverse sliding groove 310, thereby realizing the transverse displacement of the probe module 30.

[0140] like Figure 9 As shown, a displacement sensor 422 is mounted on the probe support plate 33 of the probe module 30. A high-precision linear displacement sensor 422 is fixed to the side of the probe support plate 33. Specifically, two displacement sensors 422 are provided. The probe support plate 33 drives the displacement sensors 422 to move (towards or away from each other). By detecting the movement distance of the probe support plate 33 relative to the transverse sliding groove 310, a displacement signal is generated in real time and transmitted to the control system via wires. Based on the feedback signal from the displacement sensors 422, the control system calculates the deviation between the actual displacement of the probe module 30 and the target position, and then adjusts the rotation speed and direction of the motor 420 to ensure that the spacing of the probe interfaces 320 accurately matches the terminal spacing of different battery models. The motor 420 drives the probe module 30 to move along the transverse sliding groove 310 via a lead screw 421. Combined with the real-time monitoring of the displacement sensors 422, the automatic adjustment of the probe interface spacing 320 is achieved, meeting the high-precision spacing adjustment requirements.

[0141] In this embodiment, the motor 420 provides precise power, the lead screw 421 achieves smooth transmission, the displacement sensor 422 provides real-time displacement data feedback, and the cooperation of the three with the control system drives the probe module 30 to move precisely along the transverse slide 310, ensuring the accuracy and efficiency of the probe interface 320 spacing adjustment, and providing support for the formation and capacity testing equipment to adapt to the testing of various battery models.

[0142] like Figure 9 and Figure 10 As shown, preferably, the locking mechanism 43 includes:

[0143] Torque socket wrench 430, which is adapted to the nut of the locking screw, is used to perform the loosening and tightening operations of the screw;

[0144] Torque sensor 431 is mounted on torque socket wrench 430 and is used to detect the torque force of screw in real time and feed it back to the control system.

[0145] The control system confirms whether the torque force of the screw has reached the preset value based on the feedback signal from the torque sensor 431.

[0146] The locking mechanism 43 is mounted on the base plate 41 of the automatic changeover and spacing adjustment fixture 40, and engages with the nut of the locking screw of the locking device 36 of the probe module 30 to perform the loosening and tightening operations of the locking screw. The locking mechanism 43 includes a torque socket wrench 430 and a torque sensor 431. The torque socket wrench 430 is fixed to a bracket on the base plate 41 by bolts, and its sleeve 210 part matches the hexagonal nut of the locking screw. The torque socket wrench 430 is driven by a servo motor 420 and rotates upon receiving instructions from the control system. When the probe carrier plate 33 is adjusted to the target position along the transverse slide groove 310, the torque socket wrench 430 rotates the locking screw, connecting the nut and the screw, and fixing the probe carrier plate 33 to the transverse slide groove 310. When loosening, the torque socket wrench 430 rotates in the opposite direction, releasing the fixing force of the locking screw and allowing the probe carrier plate 33 to slide to adjust the spacing of the probe assembly 32.

[0147] A torque sensor 431 is installed on the sleeve 210 portion of the torque socket wrench 430. It is a high-precision strain gauge sensor and is connected to the control system via wires. The torque sensor 431 detects the torque applied to the locking screw by the torque socket wrench 430 in real time and transmits the torque signal to the control system. Based on the feedback signal from the torque sensor 431, the control system compares the actual torque with a preset value to determine whether the locking screw has reached the required tightening force. If the torque has not reached the preset value, the control system instructs the torque socket wrench 430 to continue rotating; if it has reached the preset value, it stops rotating, ensuring the fixing accuracy of the probe module 30.

[0148] like Figure 2 and Figure 3 As shown, preferably, the probe module 30 further includes:

[0149] A positive probe module, which includes multiple positive probe interfaces and is electrically connected to the positive interface of the PCB board;

[0150] A negative electrode probe module, which includes multiple negative electrode probe interfaces and is electrically connected to the negative electrode interface of the PCB board;

[0151] A negative pressure module is disposed on the probe carrier plate 33 and is used to assist in fixing the battery and completing the battery negative pressure formation process.

[0152] The automatic type-changing and spacing adjustment fixture 40 sequentially adjusts the spacing between the positive electrode probe module, the negative electrode probe module, and the negative pressure module.

[0153] In this embodiment, the probe module 30 adopts a modular design to achieve high flexibility and precise automated adjustment. The entire module system is built on a probe carrier plate 33 that can move along the transverse sliding groove 310. To achieve independent adjustment, the positive electrode probe, negative electrode probe, and negative pressure suction cup corresponding to a row or group of batteries are typically mounted on separate probe carrier plates 33 that can slide within the same set of transverse sliding grooves 310.

[0154] Positive probe module: Each positive probe module contains multiple positive probe interfaces 320, which are uniformly fixed on an independent probe carrier board 33. Each probe interface is electrically connected to the positive power channel on the corresponding PCB board 34 through a high-temperature resistant flexible high-current cable.

[0155] Negative probe module: Similar in structure to the positive probe module, each negative probe module also consists of multiple negative probe interfaces 320 and is mounted on another independent probe carrier board 33. It is also electrically connected to the negative power channel of the PCB board 34 via a flexible cable.

[0156] Negative pressure module: The negative pressure module is also integrated on the probe carrier plate 33. Its position precisely corresponds to the positive and negative electrode probes to ensure adsorption on the non-terminal area of ​​the battery top cover. The negative pressure module can optionally be connected to an external vacuum system via a flexible pressure-resistant air tube, and its start and stop are controlled by a solenoid valve.

[0157] Automated battery adjustment process: When a production task changes and a new battery model needs to be adapted, the operator selects the corresponding battery model in the control system, and the equipment will automatically execute the following sequential adjustment process:

[0158] Step 1: Positioning of the adjustment fixture The automatic change-of-type adjustment fixture 40 is transported to the bottom of the probe module 3) and docked and fixed with the lifting frame 20. The moving device 42 and locking mechanism 43 on it are ready to start working.

[0159] Step Two: The control system first retrieves the coordinate parameters of the positive electrode post for the new battery model. The moving device 42 (e.g., a lead screw driven by a servo motor) of the automatic changeover and adjustment fixture 40 moves to the probe support plate 33 where the first positive electrode probe module is located, cooperating with its drive structure. The moving device drives the support plate along the transverse slide 310 to the preset target position. The displacement sensor 422 feeds back the real-time position to the control system to ensure positioning accuracy. Once in position, the locking mechanism 43 (e.g., a torque socket wrench) firmly locks the support plate. The fixture automatically moves to the next positive electrode probe module, repeating this process until all positive electrode probe modules are adjusted and locked.

[0160] Step 3: After adjusting all the positive probes, the control system switches to the coordinate parameters of the negative electrode post. The automatic changeover and adjustment fixture 40 moves, engages, drives, positions, and locks all the probe carrier plates 33 that support the negative electrode probe modules in sequence, following the same logic and process.

[0161] Step 4: Adjust the negative pressure modules sequentially, and the control system retrieves the coordinate parameters of the battery top cover. The automatic changeover and adjustment fixture 40 continues to move, sequentially adjusting the positioning of the probe carrier plates 33 of all negative pressure modules to ensure that each negative pressure module is accurately aligned with the center area of ​​the battery top cover.

[0162] This embodiment has a preferred implementation method, specifically as follows:

[0163] The probe carrier plate 33 has red marking lines at both ends. These lines are printed with wear-resistant ink, have a moderate width, and are easy to identify. The side of the transverse sliding groove 310 is engraved with scale lines using laser engraving, resulting in uniform and clearly visible scale intervals. The marking lines, in conjunction with the scale lines, visually indicate the transverse position of the probe carrier plate 33, facilitating quick confirmation and adjustment of the probe interface 320 spacing by the operator. During adjustment, the low-friction characteristics of the sliding connector ensure smooth movement of the probe carrier plate 33. Combined with the fixing function of the positioning pin holes, the adjustment accuracy can be controlled within ±0.5mm, meeting the electrode spacing requirements of different battery models.

[0164] like Figure 1 and Figure 2 As shown, in this preferred embodiment, it also includes a fire-fighting device 50 and a power supply module:

[0165] Fire suppression system 50 is installed on the side of the press frame 10 to monitor and respond to fire risks. The fire suppression system 50 includes smoke detection components 51 and fire suppression piping 52. The smoke detection components 51 are photoelectric smoke sensors distributed along the four sides of the press frame 10, mounted on pre-set brackets on the side walls of the frame, and fixed with bolts. Each smoke sensor detects the smoke concentration inside and around the press frame 10 and transmits the signal to the control system via a wire. When the smoke concentration exceeds a set threshold, the smoke sensor generates an alarm signal, triggering the control system to initiate a fire response. The fire suppression piping 52 is a high-pressure spray pipe, arranged in a ring along the side of the press frame 10, made of corrosion-resistant stainless steel, and connected to an external fire water source or extinguishing agent storage device. Multiple spray nozzles 53 are installed on the fire suppression piping 52, mounted on the top and sides of the press frame 10, facing the probe module 30 and battery tray area inside the press frame 10. The spray nozzle 53 is a controllable nozzle that is activated by commands from the control system to spray water or extinguishing agent to cover the probe module 30 and the battery tray area in order to address fire risks and protect the equipment and battery.

[0166] The power supply module is mounted on the lifting frame 20 and electrically connected to the automatic changeover and adjustment fixture 40, providing power and communication signals. The power supply module includes an electrical interface and a signal transmission channel. The electrical interface is a multi-pin connector, fixed to the lower surface of the lifting frame 20 and bolted to an interface bracket. The electrical interface mates with the power-taking module of the automatic changeover and adjustment fixture 40, which is a matching connector mounted on the fixture base plate 41 and aligned with the electrical interface. When the lifting frame 20 descends and mates with the automatic changeover and adjustment fixture 40, the electrical interface engages with the power-taking module, transmitting power to the fixture's moving device 42 and locking mechanism 43, supporting the motor 420's drive and locking operations. The signal transmission channel uses a shielded cable, with one end connected to the electrical interface and the other end connected to the control system via a wire. The signal transmission channel transmits the control system's instructions to the automatic changeover and adjustment fixture 40, controls the rotation of the motor 420 of the moving device 42 and the operation of the torque socket wrench 430 of the locking mechanism 43, and simultaneously receives the fixture's status signals (such as feedback from the displacement sensor 422) to achieve real-time monitoring and control of the fixture's operating status.

[0167] In one optional embodiment of this invention, the RGV (Rail Guided Vehicle) of the stacker crane is an automated transfer device that runs along a preset track system. The track uses high-precision steel guide rails 12, fixed to the floor of the production workshop or the external frame of the equipment. The RGV is equipped with a servo motor 420 drive system and positioning sensors, and executes transfer tasks according to instructions from the control system. Optionally, the RGV's carrying platform is equipped with a clamping mechanism, which includes pneumatic grippers fixed to both sides of the platform. The grippers clamp or release battery trays via air pressure control. The gripper surfaces are covered with a wear-resistant rubber layer to prevent damage to the battery trays during clamping. The RGV transports the battery trays from the external storage area to the support assembly 11 within the press frame 10 at a constant speed according to the preset path and coordinates of the control system. The positioning sensor (using a laser rangefinder) monitors the relative position of the RGV to the target storage location (support assembly 11) in real time, and the signal is transmitted to the control system via wires to ensure that the transfer accuracy is controlled within ±1mm.

[0168] When the RGV transports the battery tray to the target storage location within the press frame 10, the pneumatic grippers of the clamping mechanism release the battery tray, allowing it to fall smoothly into the positioning slot of the support assembly 11. The support assembly 11 is equipped with a limit switch 111 and an in-storage photoelectric sensor 112 to detect the battery tray's storage status. The limit switch 111 is a microswitch fixed to the edge of the positioning slot. When the positioning boss of the battery tray is fully embedded in the positioning slot, the limit switch 111 is triggered, generating a physical signal. The in-storage photoelectric sensor 112 is an infrared photoelectric sensor, including a transmitter and a receiver, respectively installed on opposite sides of the support assembly 11. When the battery tray enters the positioning slot, its bottom blocks the infrared beam, and the receiver generates an optical signal. The signals from the limit switch 111 and the in-storage photoelectric sensor 112 are transmitted to the control system via wires. After receiving both signals, the control system confirms that the battery tray has been successfully stored and triggers subsequent operations, such as lifting the frame 20 or adjusting the distance of the probe module 30.

[0169] In summary, this invention achieves precise testing and efficient operation of the formation and capacity testing equipment for different battery models through the support of the press frame, the lifting and lowering of the lifting frame, the adjustment of the probe module spacing, the automated drive of the automatic type-changing and spacing adjustment fixture, the safety guarantee of the fire-fighting device, and the power supply module's power and signal support. The press frame's support components and guide rails provide a stable structural foundation for the equipment; the lifting frame achieves precise docking of the battery tray through the guiding mechanism and cylinder assembly; the automatic type-changing and spacing adjustment fixture achieves automatic adjustment of the probe interface spacing through the moving device and locking mechanism; the fire-fighting device ensures equipment safety through smoke detectors and sprinkler heads; and the power supply module supports automated operation through electrical interfaces and signal transmission channels. The entire system coordinates the actions of each component through the control system, combined with the dual detection of limit switches and inbound through-beam sensors, ensuring the accuracy and safety of equipment operation, and providing an efficient and reliable automated solution for the lithium battery formation and capacity testing process.

[0170] The working principle of the chemical composition and capacity testing device with automatic probe spacing adjustment described in this invention is as follows:

[0171] I. Tooling Transfer and Warehousing

[0172] 1. Transfer Operation: The stacker crane's RGV (Rail Guided Vehicle) performs automated transfer tasks, precisely transporting the automatic changeover and spacing adjustment tooling along a preset track path to the support components within the press frame. The RGV, guided by instructions from the control system, delivers the tooling to the target location.

[0173] 2. Placement and Positioning: The automatic changeover and spacing adjustment fixture is placed on the support assembly. The support assembly adopts a steel platform structure with high-precision positioning grooves on its surface to ensure that the fixture is aligned with the support assembly after placement, preventing slippage or displacement.

[0174] 3. Signal Feedback Confirmation: The support assembly is equipped with a limit switch and an in-feed photoelectric sensor (using an infrared photoelectric sensor, including a transmitter and receiver). When the automatic changeover and spacing adjustment fixture is fully inserted into the positioning slot, the limit switch is triggered, generating a physical signal; simultaneously, the infrared beam of the in-feed photoelectric sensor is blocked by the fixture, generating an optical signal. Both signals are transmitted to the control system via wires. After receiving the dual signals, the control system confirms that the fixture has been successfully inserted and triggers subsequent operations.

[0175] II. Fixture Fixing and Power Supply Connection

[0176] 1. Lifting and Fixing: After the control system confirms the tooling is in place, it instructs the cylinder assembly to drive the lifting frame upwards along the guide post and sleeve of the guide mechanism. The first positioning piece (cylindrical positioning pin) on the lower surface of the lifting frame gradually aligns and engages with the bushing of the automatic changing and adjusting tooling base plate. The bushing is made of wear-resistant stainless steel to ensure a precise connection after the first positioning piece is inserted, fixing the tooling position and preventing displacement during operation.

[0177] 2. Power Supply and Signal Transmission Connection: Simultaneously with the engagement of the first positioning component and the bushing, the power supply module on the lifting frame connects to the power take-off module of the automatic changeover and spacing adjustment fixture. The electrical interface (multi-pin connector) of the power supply module aligns and engages with the power take-off module (matching connector on the base plate), transmitting electrical energy to the moving device and locking mechanism of the fixture, supporting motor drive and locking operations. The signal transmission channel (shielded cable) connects the electrical interface and the control system, transmitting control commands and fixture status signals (such as displacement sensor feedback), enabling data interaction and real-time monitoring.

[0178] 3. Position Detection: A position switch is installed on the base plate of the automatic changeover and adjustment fixture, near the bushing, to detect the relative position of the fixture and the lifting frame in real time. The position switch feeds the detection signal back to the control system to confirm whether the fixture is fully aligned. If it is not aligned, the control system issues an alarm signal and suspends operation; if it is aligned, subsequent operations are allowed to continue, ensuring operational safety.

[0179] III. Probe Module Screw Operation and Spacing Adjustment

[0180] 1. Screw Loosening: After the tooling is in place, the torque socket wrench of the locking mechanism is activated to loosen the locking screw in the probe module locking device. The torque socket wrench matches the hexagonal nut of the locking screw and is driven to rotate by a servo motor to loosen the screw. The torque sensor monitors the torque force of the screw in real time and feeds it back to the control system. After confirming that the screw is loosened, the control system triggers the adjustment command.

[0181] 2. Probe Module Spacing Adjustment: The control system commands the servo motor of the moving device to start, driving the lead screw to rotate via a coupling. The thread of the lead screw engages with the nut structure at the bottom of the probe carrier plate, causing the probe carrier plate to move along the transverse sliding groove, sequentially adjusting the probe interface spacing of the positive and negative probe modules to adapt to the terminal spacing of different battery models. A displacement sensor (high-precision linear sensor) is installed on the probe carrier plate to monitor the displacement distance in real time and feed it back to the control system. The control system adjusts the motor speed and direction based on the feedback signal to ensure the spacing accuracy.

[0182] IV. Operation and Torque Detection of Probe Module Locking Screws

[0183] 1. Tightening Screw Operation: After the probe carrier plate is adjusted to the target position, the torque wrench of the locking mechanism is activated again. Rotate the locking screw to connect the nut and the screw, fixing the probe carrier plate in the transverse sliding groove. The torque wrench is operated according to the tightening sequence and torque requirements set by the control system to ensure the fixing accuracy of the probe module.

[0184] 2. Torque Detection: A torque sensor (high-precision strain gauge sensor) detects the torque force of the tightening screw in real time and transmits the signal to the control system. The control system compares the actual torque with the preset value. If the requirement is met, the tightening is confirmed to be complete, and subsequent operations are allowed; if the requirement is not met, an alarm signal is issued and the torque socket wrench is instructed to tighten again until the torque meets the standard.

[0185] V. Repeated Distance Adjustment Process

[0186] 1. Mechanism Reset and Movement: After adjusting and locking a set of probe modules, the torque socket wrench is reset to its initial position. Under the command of the control system, the moving device moves the probe carrier plate under the next set of probe modules (positive or negative probe modules) to prepare for the next round of adjustment operation.

[0187] 2. Cyclic Operation: Repeat the above process of fixing the tooling, loosening screws, adjusting the probe module spacing, tightening screws, and torque testing, adjusting the spacing of all positive and negative probe modules in sequence. The control system monitors each step in real time to ensure operational accuracy and consistency. After adjustment, the lifting frame moves the battery tray upwards, electrically connecting the battery terminals to the probe interfaces. Charging and discharging signals are transmitted through the PCB board to complete the formation and capacity testing. The smoke detector component of the fire suppression system monitors the smoke concentration in real time. If an anomaly is detected, the sprinkler head is triggered to spray extinguishing agent towards the probe modules and battery tray area to ensure safety.

[0188] Other structures of the chemical composition and capacity device with automatic probe spacing adjustment described in this invention are available in the prior art.

[0189] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A formulation and capacity testing device with automatic probe spacing adjustment, characterized in that, include: A press frame, the bottom of which is provided with multiple support components for placing a battery tray, and the upper end of which has multiple guide rails; A lifting frame is provided inside the press frame, and a plurality of guide mechanisms are provided between the lifting frame and the press frame. The lifting frame moves up and down along the vertical direction of the guide mechanisms. A probe module is slidably connected to the inside of the press frame via a guide rail. The probe module includes a module frame, a probe assembly, and a probe support plate. A transverse sliding groove is installed at the bottom of the module frame. Several PCB boards are installed inside the module frame. The probe assembly is mounted on the probe support plate. The probe assembly includes multiple probe interfaces, each of which is connected to one of the PCB boards. The probe support plate is slidably connected to the transverse sliding groove, which is used to adjust the lateral movement distance of the probe assembly. An automatic type-changing and spacing adjustment fixture is installed inside the press frame. The automatic type-changing and spacing adjustment fixture is used to drive the probe carrier plate to move along the long axis of the transverse sliding groove and adjust the spacing of the probe assembly to adapt to the electrode spacing of different battery models. When the lifting frame is lifted upward, it moves the battery tray upward and presses the battery terminals in the battery tray with the probe interface to achieve electrical connection; the automatic change-of-position adjustment fixture, in cooperation with the lifting frame, drives the probe module to achieve automatic adjustment of position.

2. The formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that: The guiding mechanism includes several sleeves and guide columns, which are located at the four corners of the press frame. The sleeves are fitted onto the guide columns, and the sleeves are used to guide the lifting frame to move up and down along the vertical direction of the guide columns.

3. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that, Also includes: A support assembly is provided within the press frame to support the automatic changeover and spacing adjustment fixture or battery tray. Limit switch, which is located on the support assembly, is used to detect the storage status of the automatic change-of-grid tooling or battery tray; The control system is used to control the lifting and lowering of the lifting frame, adjust the spacing of the automatic shape-changing and spacing-adjusting tooling, and control the charging and discharging process of the formation and capacity-forming equipment. The press frame is equipped with an inbound through-beam sensor, which is used to detect the position status information of the battery tray and cooperates with the limit switch to feed back an inbound signal to the control system.

4. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that: The lifting frame is provided with a first positioning component and a cylinder assembly. The first positioning component is located on the lower surface of the lifting frame and cooperates with the bushing of the automatic shape-changing and distance-adjusting fixture to fix the automatic shape-changing and distance-adjusting fixture. The cylinder assembly is located inside the press frame and connected to the lifting frame to drive the lifting frame to move up and down in the vertical direction.

5. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 4, characterized in that: The probe module is provided with a second positioning component and a locking device. The second positioning component is disposed on the probe support plate and cooperates with the positioning component of the automatic shape-changing and distance-adjusting fixture. The second positioning component is used to position the probe module. The locking device is installed on the transverse sliding groove. The locking device includes a locking screw and a nut is sleeved on the locking screw, so that the locking device has a locked state and a loosened state. When the locking device is in the locked state, the nut cooperates with the locking screw to lock and fix the probe carrier plate. When the locking device is in the loosened state, the nut and the locking screw are released from their locking engagement, and the probe carrier plate can move on the transverse sliding groove. The nut of the locking screw is adapted to the automatic change-of-size and adjustment fixture. The locking device is used to automatically loosen and tighten the probe module.

6. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that, The automatic type-changing and spacing adjustment fixture includes: A base plate is provided with a bushing, which cooperates with a first positioning component on the lifting frame to support the automatic shape-changing and distance-adjusting fixture. A moving device, which is mounted on the base plate and connected to the transverse sliding groove, is used to drive the probe module to move along the long axis of the transverse sliding groove. A locking mechanism is provided on the base plate and cooperates with the nut of the locking screw to perform the loosening and tightening operations of the locking screw.

7. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 6, characterized in that, The mobile device includes: The motor is mounted on the base plate; A lead screw, which is connected to the motor and engages with the transverse sliding groove of the probe module; A displacement sensor is provided on the probe module for real-time monitoring of the displacement of the probe module and feedback to the control system. The motor drives the probe module to move along the transverse slide groove via the lead screw, thereby adjusting the probe interface spacing.

8. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 6, characterized in that, The locking mechanism includes: A torque socket wrench, which is adapted to the nut of the locking screw, is used to perform the loosening and tightening operations of the screw; A torque sensor is installed on the torque socket wrench to detect the torque force of the screw in real time and feed it back to the control system. The control system confirms whether the torque force of the screw has reached the preset value based on the feedback signal from the torque sensor.

9. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that, The probe module also includes: A positive probe module, which includes multiple positive probe interfaces and is electrically connected to the positive interface of the PCB board; A negative electrode probe module, which includes multiple negative electrode probe interfaces and is electrically connected to the negative electrode interface of the PCB board; A negative pressure module is mounted on the probe carrier plate and is used to assist in fixing the battery and completing the battery negative pressure formation process. The automatic type-changing and spacing adjustment fixture sequentially adjusts the spacing between the positive electrode probe module, the negative electrode probe module, and the negative pressure module.

10. A formulation and capacity testing device with automatic probe spacing adjustment according to claim 1, characterized in that, Also includes: The fire-fighting device is arranged around the side of the press frame. The fire-fighting device includes a smoke detection component and a fire-fighting pipeline. The fire-fighting pipeline has a spray nozzle. The spray nozzle faces the probe module and battery tray area inside the press frame. The smoke detection component is used to detect the smoke concentration inside and around the press frame and send an alarm signal to the control system. A power supply module is mounted on the lifting frame and electrically connected to the automatic changeover and adjustment fixture. It provides power and communication signals to the fixture. The power supply module includes an electrical interface and a signal transmission channel. The electrical interface is located on the lifting frame and connects to the power supply module of the automatic changeover and adjustment fixture. The signal transmission channel is connected to the electrical interface and is used to enable data interaction between the automatic changeover and adjustment fixture and the control system. The electrical interface provides a stable power supply, and the signal transmission channel is used to monitor and control the status of the automatic changeover and adjustment fixture.

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