Blade battery OCV full-automatic test equipment

Abstract

The invention provides blade battery OCV full-automatic testing equipment which comprises a rack, an electric control box and a pneumatic control box which are installed at the bottom of the rack, an outer cover arranged at the top of the rack, an operation display module installed on the front side face of the outer cover, a battery restraining tray inlet and outlet window formed in the rear side face of the outer cover, and a safety optical grating installed on the battery restraining tray inlet and outlet window. An OCV testing mechanism is installed in the outer cover and comprises a roller conveying mechanism, the rear end of the roller conveying mechanism is aligned with a battery restraining tray inlet and outlet window, a battery restraining tray is placed on the roller conveying mechanism, and a positioning jacking air cylinder which is vertically and upwards arranged in the Z direction is installed at the bottom of the rack. The left side and the right side, in the Y direction, of the roller conveying mechanism are each provided with an OCV test probe module right facing the battery restraining tray. According to the invention, automatic conveying, positioning, OCV detection and unloading of the battery restraining tray loaded with a plurality of blade batteries can be realized, the detection efficiency is greatly improved, and the safety and compatibility are high.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production equipment, and in particular to a fully automatic OCV testing device for blade batteries. Background Art

[0002] Blade batteries are a structural innovation that revolutionizes traditional power battery design. By innovating the cell shape and assembly method, they address the low energy density of lithium iron phosphate batteries while maintaining high safety and low cost. Blade batteries utilize extra-long single cells, arranged in an array and directly integrated into the battery pack, eliminating the need for modules. Blade batteries require OCV testing during production.

[0003] The OCV of a battery module refers to the open circuit voltage of the battery, which is also the voltage difference between the positive and negative electrodes when the battery circuit is not open. In order to improve the detection efficiency, when companies perform voltage resistance testing on the battery module OCV, they also need to test the OCV of the battery module. When testing battery modules, the detection devices in the existing technology usually use a one-by-one detection method, or manually test the battery cells one by one, which makes the detection efficiency low. Similarly, conventional OCV testing takes into account the number of tests at one time and adopts a single-channel multiple switching test. The relay switching is frequently used, the wiring is cumbersome, the frequent switching is prone to interference, and the overall time is long.

[0004] In the prior art, Chinese patent publication number CN113533980A discloses a dual-row blade battery OCV / ACIR testing device, comprising: a three-axis mechanical module assembly, including an X-axis assembly, a Y-axis assembly, a Z-axis assembly, and a module support assembly; the X-axis assembly is horizontally mounted on the top of the module support assembly; the Y-axis assembly is slidably mounted horizontally on the X-axis assembly; two sets of Z-axis assemblies are vertically and slidably mounted on the Y-axis assembly; two sets of probe test assemblies are respectively mounted on the Z-axis lifting sections of the two sets of Z-axis assemblies, and comprise a module fixing frame, a clamping jaw assembly, a contact probe assembly, and an in-place detection assembly, the top of the module fixing frame being connected to the Z-axis lifting section of the Z-axis assembly; the clamping jaw assembly is suspended from the bottom of the module fixing frame; the contact probe assembly is disposed in the clamping portion of the clamping jaw assembly; the in-place detection assembly is disposed on the module fixing frame; and a battery cell tray is disposed below the three-axis mechanical module assembly. The beneficial effects of this invention are: a simple structure, a small space requirement, and an effective solution to the problem of testing dual-row blade batteries.

[0005] However, the above-mentioned blade battery OCV test device can only test two double-row blade batteries at a time, and still has the following problems: (1) The degree of automation and intelligence is low, the detection efficiency is low, and it is impossible to achieve one-time simultaneous detection of large quantities of blade batteries; (2) In actual production, since the thickness of each battery in the user's tray may be inconsistent, it is difficult to make the probe (temperature probe, shell probe) components compatible and press-fit onto the battery poles on both sides during the OCV test, resulting in poor adaptability of the existing OCV test probe module. The probe module needs to be frequently replaced according to different battery models, which greatly reduces work efficiency. (3) There are no protective measures when the test probe contacts the blade battery, which can easily damage the probe or battery. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention proposes a fully automatic OCV testing equipment for blade batteries, which can realize the automatic transportation, positioning, OCV detection and unloading of battery restraint trays loaded with multiple blade batteries, greatly improving the detection efficiency and improving the safety during the OCV detection process.

[0007] In order to realize the above technical solution, the present invention provides a blade battery OCV fully automatic testing equipment, comprising: a frame, an electric control box and an air control box are installed at the bottom of the frame, an outer cover is provided on the top of the frame, an operation display module is installed on the front side of the outer cover, a battery restraint tray access window is provided on the rear side of the outer cover, a safety grating is installed on the battery restraint tray access window, an OCV testing mechanism is installed in the outer cover, the OCV testing mechanism comprises two brackets installed on the frame in parallel and at intervals along the X direction, a test control board is installed between the tops of the two brackets, and a test control board is installed at the bottom of the test control board. It is equipped with a roller conveying mechanism, the rear end of which is aligned with the inlet and outlet window of the battery restraint tray, and the battery restraint tray is placed on the roller conveying mechanism. A positioning lifting cylinder arranged vertically upward along the Z direction is installed at the bottom of the frame, and a rear blocking block is installed at the rear end of the roller conveying mechanism. A micro switch is installed on the rear blocking block. A barcode scanner is also installed at the rear end of the roller conveying mechanism, facing the battery restraint tray. OCV test probe modules are installed on the left and right sides of the roller conveying mechanism along the Y direction, facing the battery restraint tray. The two OCV test probe modules are connected to the test control board through a wiring harness.

[0008] In the above technical solution, during actual operation, a battery restraint pallet loaded with multiple blade batteries is transported from the battery restraint pallet access window to the roller conveyor mechanism via a forklift. After the roller conveyor mechanism transports the battery restraint pallet backward into position, the positioning jacking cylinder is lifted to secure the battery restraint pallet in place. A barcode scanner then scans the code information on the battery restraint pallet. The test control panel controls the inward movement of two OCV test probe modules, which perform OCV testing on the blade batteries within the battery restraint pallet. After the battery test is completed, the two OCV test probe modules are reset, and the roller conveyor mechanism transports the battery restraint pallet forward to the battery restraint pallet access window. Finally, a forklift is used to remove the battery restraint pallet from the roller conveyor mechanism. This allows for the automated conveying, positioning, OCV testing, and unloading of battery restraint pallets loaded with multiple blade batteries, significantly improving inspection efficiency. The outer cover provides a closed-loop control system for the entire inspection process, significantly enhancing work safety. During the inspection process, real-time interaction of inspection data is achieved through the operation display module. Safety gratings installed on the battery restraint pallet access window further enhance safety during forklift loading.

[0009] Preferably, the OCV test probe module includes a module mounting frame, an OCV test assembly is mounted on the module mounting frame, two Y-guide rails spaced parallel to each other along the X direction are mounted below the module mounting frame, the module mounting frame is mounted on the Y-guide rails via a module mounting frame slider, a Y-direction push-pull electric cylinder mounting seat is also mounted at the rear of the module mounting frame, a Y-direction push-pull electric cylinder is mounted on the Y-direction push-pull electric cylinder, and the telescopic axis of the Y-direction push-pull electric cylinder is connected to the bottom of the module mounting frame. During actual operation, the module mounting frame and the OCV test assembly can be pushed into place along the Y direction by the Y-direction push-pull electric cylinder, so that the OCV test assembly and the battery are probe-crimped, thereby realizing the test docking of the battery and the OCV test assembly. When all batteries are crimped and tested, the Y-direction push-pull electric cylinder drives the module mounting frame and the OCV test assembly to exit, completing the test function.

[0010] Preferably, the OCV test assembly includes a probe module mounting plate installed on the back of the module mounting frame, a probe assembly X-direction guide rail is installed on the probe module mounting plate, a plurality of probe assemblies are installed in parallel and at intervals on the probe assembly X-direction guide rail, the backs of adjacent probe assemblies are connected by a long hole connecting plate, a long hole fixing screw is installed on the back of each probe assembly, the long hole fixing screw is inserted into the long hole of the long hole connecting plate, a probe assembly spring is installed between the sides of adjacent probe assemblies, an electric cylinder push block is installed on the left end of the first probe assembly, a tray liner detection photoelectric sensor is installed on the electric cylinder push block, and the probe module push-pull electric cylinder is installed on the module mounting frame and connected to the electric cylinder push block. In actual operation, when the pallet liner detection photoelectric sensor detects the battery restraint pallet liner, the probe module push-pull electric cylinder stops pushing. Probe assembly springs are installed between adjacent probe assemblies, ensuring uniform spacing between each probe assembly. This ensures that the thickness of batteries in each column of the pallet is consistent, allowing the concave guide blocks on the probe assemblies to be inserted. The Y-axis push-pull electric cylinder then pushes the module mounting frame and the entire probe module into place in the Y direction, allowing the probe module to be crimped onto the battery and completing the test docking of the battery with each probe assembly. Once all batteries are crimped and tested, the Y-axis push-pull electric cylinder drives the module mounting frame out, and the probe module push-pull electric cylinder then pulls all probe assemblies back into position, completing the test. This allows multiple blade batteries to be tested simultaneously, greatly improving inspection efficiency. Furthermore, even if the thickness of each battery in the user's pallet is inconsistent, the OCV test probe (temperature probe, shell probe) assemblies can be compatible and crimped onto the battery posts on both sides, eliminating the need to replace different probe assemblies, improving the adaptability and efficiency of the probe module.

[0011] Preferably, the probe assembly includes a probe mounting frame, the top and bottom of the probe mounting frame are both installed with slider mounting plates, the back of the slider mounting plate is installed with a slider, the probe mounting frame is embedded and installed on the probe assembly X guide rail set on the probe module mounting plate through the slider, a guide block mounting seat is installed on the top of the probe mounting frame, the concave guide block is installed at the front end of the guide block mounting seat, and a compression spring is installed between the concave guide block and the guide block mounting seat, a shell probe is installed on the front side of the probe mounting frame, a temperature probe is installed below the shell probe, and two pole probes arranged in parallel and spaced apart are installed below the temperature probe. During actual operation, the entire array of probe assemblies is pushed by a double-stroke Y-axis push-pull electric cylinder to realize the guiding and crimping functions: among them, the first stage promotes the probe module guiding function. If the concave guide block does not guide the convex guide block of the tray liner, the concave guide block will move backward and trigger the photoelectric sensor, then the cylinder will return to its original position and alarm; the second stage promotes the probe module probe crimping function. In the first stage, the concave guide block guides the convex guide block of the liner, then the first stage cylinder does not trigger the alarm, and the second stage cylinder starts. At this time, the photoelectric sensor shields the sensing function (if not shielded, the concave guide block will trigger the photoelectric sensor when the probe is crimped to the pole). The test function is completed until the pole probe is crimped to the pole, thereby further ensuring the safety of the probe assembly during advancement.

[0012] Preferably, the roller conveying mechanism includes a conveyor line guide seat, the rear end of the conveyor line guide seat is aligned with the battery restraint pallet entrance and exit window, and a plurality of parallel and spaced conveyor rollers are installed on the conveyor line guide seat along the X direction. The conveyor rollers are connected by synchronous belts, and the roller drive motor is installed on the conveyor line guide seat and connected to one of the conveyor rollers. The battery restraint pallet is placed on the conveyor roller. During actual work, the battery restraint pallet loaded with blade batteries is transported to the conveyor roller by a forklift. After the roller drive motor drives the conveyor roller to transport the battery restraint pallet backward into place, the positioning jacking cylinder is pushed up to fix the position of the battery restraint pallet. After the inspection is completed, the roller drive motor drives the conveyor roller to transport the battery restraint pallet forward to the battery restraint pallet entrance and exit window to facilitate forklift unloading.

[0013] Preferably, a concave guide block detection photoelectric sensor is installed on the top of the probe mounting frame of the last probe assembly and is arranged opposite to the concave guide block along the X direction to detect whether each concave guide block is plugged into place during the actual test process.

[0014] Preferably, a plurality of spring mounting holes are provided on the left and right sides of the probe mounting frame, and one end of the probe assembly spring is inserted and installed in the spring mounting hole. During actual operation, the function of the probe assembly spring is to ensure that the distance between each probe assembly is the same.

[0015] Preferably, an X-direction adjusting screw is installed at the right end of the X-direction guide rail of the probe assembly. During actual operation, the X-direction adjusting screw not only has the function of limiting the rear end, but also can play a role in fine-tuning the limit position of the last probe assembly.

[0016] Preferably, a forklift feeding guide plate is provided at the front end of the conveyor line guide seat, and a forklift bottom guide is installed at the bottom of the frame to achieve better guidance for the forklift when feeding.

[0017] Preferably, the operation display module includes an industrial computer display screen installed on the front side of the outer cover, a keyboard operation platform is installed below the industrial computer display screen, a PLC touch screen is installed on the right side of the industrial computer display screen, an emergency stop button is installed on one side of the PLC touch screen, a first OCV test meter, a second OCV test meter and a third OCV test meter are installed side by side above the industrial computer display screen, and an alarm is installed on the top of the rack. During actual operation, the data during the detection process can be displayed on the industrial computer display screen, and the operator can control the industrial computer display screen through the keyboard operation platform. The PLC touch screen is used for human-computer interaction. If an emergency occurs, the equipment can be stopped urgently by pressing the emergency stop button. The first OCV test meter, the second OCV test meter and the third OCV test meter are used to respectively display the working parameters such as voltage, air pressure, and current during the detection process in real time. When a fault occurs during the actual detection process, the alarm will automatically sound an alarm.

[0018] The beneficial effects of the blade battery OCV fully automatic testing equipment provided by the present invention are:

[0019] (1) This blade battery OCV fully automatic testing equipment has a high degree of automation and intelligence. It can realize the automatic transportation, positioning, OCV detection and unloading of battery restraint trays loaded with multiple blade batteries, greatly improving the detection efficiency.

[0020] (2) Through the structural design of the OCV test probe module, this blade battery OCV fully automatic test equipment can make the OCV test probe (temperature probe, shell probe) components compatible and crimped onto the battery poles on both sides when the thickness of each battery in the user's tray is inconsistent. There is no need to replace different types of probe components, thereby improving the adaptability and work efficiency of the probe module.

[0021] (3) The blade battery OCV fully automatic testing equipment can not only improve the accuracy of the probe assembly and the battery during crimping, but also further improve the safety of the probe assembly during the advancement process through the structural design of the probe assembly and the structural design of the concave guide block and the compression spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the three-dimensional structure assembly of the present invention.

[0023] Figure 2 This is a rear view of the assembled three-dimensional structure of the present invention.

[0024] Figure 3 It is a front view of the three-dimensional structure assembly of the internal structure of the present invention.

[0025] Figure 4 This is a three-dimensional rear view of the internal structure of the present invention after assembly.

[0026] Figure 5 This is a front view of the assembly of the OCV test probe module, battery restraint tray and roller conveyor mechanism in the present invention.

[0027] Figure 6 This is a rear view of the assembly of the OCV test probe module, battery restraint tray and roller conveyor mechanism in the present invention.

[0028] Figure 7 This is a top view of the assembly of the OCV test probe module, battery restraint tray and roller conveyor mechanism in the present invention.

[0029] Figure 8 This is a front view of the three-dimensional structure assembly of the OCV test probe module of the present invention.

[0030] Figure 9 This is a rear view of the three-dimensional structure of the OCV test probe module of the present invention after assembly.

[0031] Figure 10 This is a top view of the OCV test probe module of the present invention.

[0032] Figure 11 It is a schematic diagram of the three-dimensional structure of the probe assembly in the present invention.

[0033] In the figure: 1. Rack; 101. Outer cover; 102. Electric control box; 103. Air control box; 104. Keyboard operation platform; 105. PLC touch screen; 106. Industrial computer display; 107. Emergency stop button; 108. First OCV test instrument; 109. Second OCV test instrument; 110. Third OCV test instrument; 111. Alarm; 112. Forklift bottom guide; 113. Battery restraint tray access window; 114. Safety light grid; 2. OCV test probe module; 21. Y-guide rail; 22. Module mounting frame slider; 23. Module mounting frame; 24. Probe module push-pull cylinder; 25. Probe module mounting plate; 26. Probe assembly; 261. Probe mounting frame; 262. Slider mounting plate; 263. Slider; 264. Spring mounting hole; 265. Guide 1. Y-axis push-pull electric cylinder; 2. Y-axis push-pull electric cylinder mounting base; 2. Y-axis push-pull electric cylinder mounting base; 2. Long hole connecting plate; 2. Long hole fixing screw; 2. Pallet liner detection photoelectric sensor; 2. X-axis adjusting screw; 2. X-axis guide rail of probe assembly; 2. Buffer spring; 2. Cylinder push block; 2. Concave guide block detection photoelectric sensor; 2. Probe assembly spring; 3. Battery restraint tray; 4. Test control board; 5. Bracket; 6. Conveyor line guide seat; 7. Roller drive motor; 8. Conveyor roller; 9. Forklift feed guide; 10. Positioning and lifting cylinder; 11. Rear blocking block; 12. In-position micro switch; 13. Barcode scanner. DETAILED DESCRIPTION

[0034] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary persons in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment: A fully automatic OCV testing device for blade batteries.

[0036] Reference Figures 1 to 11As shown, a blade battery OCV fully automatic testing equipment comprises: a frame 1, an electric control box 102 and an air control box 103 are installed at the bottom of the frame 1, which are used to provide electric control and air source for the equipment respectively; an outer cover 102 is provided on the top of the frame 1, an operation display module is installed on the front side of the outer cover 101, the operation display module comprises an industrial computer display screen 106 installed on the front side of the outer cover 101, a keyboard operation platform 104 is installed below the industrial computer display screen 106, a PLC touch screen 105 is installed on the right side of the industrial computer display screen 106, an emergency stop button 107 is installed on one side of the PLC touch screen 105, a first OCV test meter 108, a second OCV test meter 109 and a third OCV test meter 110 are installed side by side above the industrial computer display screen 106, and an alarm 111 is installed on the top of the frame 1. During actual operation, the data during the detection process can be displayed through the industrial computer display screen 106, and the operator can control the industrial computer display screen 106 through the keyboard operation platform 104. The PLC touch screen 105 is used for human-computer interaction. If an emergency occurs, the emergency stop button 107 can be used to stop the equipment urgently. The first OCV test meter 108, the second OCV test meter 109 and the third OCV test meter 110 are used to display the voltage, air pressure, current and other working parameters during the detection process in real time. When a fault occurs during the actual detection process, the alarm 111 will automatically alarm.

[0037] A battery restraint tray inlet and outlet window 113 is provided on the rear side surface of the outer cover 101, and a safety grating 114 is installed on the battery restraint tray inlet and outlet window 113. The outer cover 101 can form a closed management of the entire detection process, which greatly improves work safety. During the detection process, real-time interaction of detection data can be achieved through the operation display module. By setting the safety grating 114 on the battery restraint tray inlet and outlet window 113, the safety of forklift feeding can be further improved.

[0038] An OCV test mechanism is installed in the outer cover 101. The OCV test mechanism includes two brackets 5 installed on the frame 1 in parallel and at intervals along the X direction. A test control board 4 is installed between the tops of the two brackets 5. A roller conveying mechanism is installed at the bottom of the test control board 4. The roller conveying mechanism includes a conveyor line guide seat 6. A plurality of conveyor rollers 8 arranged in parallel and at intervals are installed on the conveyor line guide seat 6 along the X direction. The conveyor rollers 8 are connected by synchronous belts. A roller drive motor 7 is installed on the conveyor line guide seat 6 and is connected to one of the conveyor rollers 8. The battery restraint tray 3 is placed on the conveying roller 8. The bottom of the frame 1 is installed with a positioning jacking cylinder 10 arranged vertically upward along the Z direction. The rear end of the conveyor line guide seat 6 is installed with a rear blocking block 11. The rear blocking block 11 is installed with an in-position micro switch 12. The rear end of the conveyor line guide seat 6 is also installed with a barcode scanning gun 13 arranged facing the battery restraint tray 3. The conveyor line guide seat 6 is installed on both sides of the left and right sides along the Y direction with OCV test probe modules 2 arranged facing the battery restraint tray 3. The two OCV test probe modules 2 are connected to the test control board 4 through a wiring harness. During actual work, the battery restraint tray 3 loaded with blade batteries is transported to the conveying roller 8 by a forklift. After the roller drive motor 7 drives the conveying roller 8 to transport the battery restraint tray 3 backward into position, the positioning lifting cylinder 10 is pushed up to fix the position of the battery restraint tray 3. Then the barcode scanner 13 scans the code information on the battery restraint tray, and controls the two OCV test probe modules 2 to move inward through the test control board 4, and performs OCV testing on the blade batteries in the battery restraint tray 3. After the inspection is completed, the roller drive motor 7 drives the conveying roller 8 to transport the battery restraint tray 3 forward to the battery restraint tray inlet and exit window 113, and the forklift unloads the battery restraint tray 3 after the inspection is completed, thereby realizing automatic transportation, positioning, OCV detection and unloading of the battery restraint tray 3 loaded with multiple blade batteries, greatly improving the inspection efficiency.

[0039] Reference Figures 8 to 10 As shown, the OCV test probe module 2 includes a module mounting frame 23. Two Y-guide rails 21 are installed below the module mounting frame 23 and are spaced apart in parallel along the X direction. The module mounting frame 23 is installed on the Y-guide rails 21 via a module mounting frame slider 22. A Y-direction push-pull electric cylinder mounting seat 28 is also installed behind the module mounting frame 23. A Y-direction push-pull electric cylinder 27 is installed on the Y-direction push-pull electric cylinder mounting seat 28. The telescopic axis of the Y-direction push-pull electric cylinder 27 is connected to the bottom of the module mounting frame 23. During actual operation, the module mounting frame 23 and the entire probe module can be pushed into place along the Y direction by the Y-direction push-pull electric cylinder 27, so that the probe module and the battery are probe-connected, realizing the test docking of the battery and each probe assembly 26. When all batteries are crimped and tested, the Y-direction push-pull electric cylinder 27 drives the module mounting frame 23 to exit, completing the test function.

[0040] Reference Figures 4 to 6 As shown, a probe module mounting plate 25 is installed on the back of the module mounting frame 23, and two probe assembly X-direction guide rails 213 arranged in parallel and spaced apart along the Z direction are installed on the probe module mounting plate 25. A plurality of probe assemblies 26 are installed in parallel and spaced apart on the probe assembly X-direction guide rail 213, and the backs of adjacent probe assemblies 26 are connected by a long hole connecting plate 29. A long hole fixing screw 210 is installed on the back of each probe assembly 26, and the long hole fixing screw 210 is inserted into the long hole of the long hole connecting plate 29. In this way, the adjacent probe assemblies 26 can be pushed or pulled against each other, and a probe assembly spring 217 is installed between the sides of the adjacent probe assemblies 26. The function of the spring 217 is to ensure that the distance between each probe assembly 26 is the same. The left end of the first probe assembly 26 is installed with an electric cylinder push block 215, and the electric cylinder push block 215 is installed with a tray lining detection photoelectric sensor 211 arranged along the Y direction facing the battery restraint tray. The tray lining detection photoelectric sensor 211 is used to detect the tray lining on the battery restraint tray 3. The probe module push-pull electric cylinder 24 is installed on the module mounting frame 23 and is connected to the electric cylinder push block 215. The right end of the probe assembly X-guide rail 213 is installed with an X-direction adjustment screw 212, which is used to limit the moving position of the rightmost probe assembly 26 and to fine-tune the limit position of the last probe assembly 26. During actual operation, the tray lining detection photoelectric sensor 211 moves following the electric cylinder push block 215 pushed by the probe module push-pull electric cylinder 24. After the tray lining detection photoelectric sensor 211 detects the tray lining on the battery restraint tray 3, the probe module push-pull electric cylinder 24 stops pushing. Since probe assembly springs 217 are installed between adjacent probe assemblies 26, the distance between each probe assembly 26 is the same. Therefore, the concave guide block 267 on the probe assembly 26 can be introduced only when the thickness of each column of batteries on the tray is the same.

[0041] Reference Figure 11As shown, the probe assembly 26 includes a probe mounting frame 261, and a slider mounting plate 262 is installed on the top and bottom of the probe mounting frame 261, and a slider 263 is installed on the back of the slider mounting plate 262. The probe mounting frame 261 is embedded in the probe assembly X guide rail 213 set on the probe module mounting plate 25 through the slider 263. A guide block mounting seat 265 is installed on the top of the probe mounting frame 261, and a concave guide block 267 is installed at the front end of the guide block mounting seat 265, and a compression spring 266 is installed between the concave guide block 267 and the guide block mounting seat 265. A shell probe 268 is installed on the front side of the probe mounting frame 261, and a temperature probe 269 is installed below the shell probe 268. Two parallel and spaced pole probes 2610 are installed below the temperature probe 269. During actual operation, the role of the concave guide block 267 is to achieve the insertion and positioning of each probe assembly 26. The shell probe 268, temperature probe 269 and pole probe 2610 are used to dock with the outer shell, battery cell and pole on the battery respectively. A concave guide block detection photoelectric sensor 216 is installed on the top of the probe mounting frame 261 of the last probe assembly 26, which is arranged along the X direction opposite the concave guide block 267, to detect whether each concave guide block 267 is plugged into place during the actual test. A plurality of spring mounting holes 264 are provided on the left and right sides of the probe mounting frame 261. One end of the probe assembly spring 217 is inserted and installed in the spring mounting hole 264. During actual operation, the role of the probe assembly spring 217 is to ensure that the distance between each probe assembly 26 is the same. During actual operation, the entire array of probe assemblies 26 is pushed by the double-stroke Y-axis push-pull electric cylinder 27 to realize the guiding and crimping functions: among them, the first stage promotes the probe module guiding function. If the concave guide block 267 does not guide into the convex guide block of the tray liner of the battery restraint tray 3, the concave guide block 267 will move backward under the action of the compression spring 266 and trigger the photoelectric sensor, then the Y-axis push-pull electric cylinder 27 will return to its original position and alarm; the second stage promotes the probe module probe crimping function. In the first stage, the concave guide block 267 guides into the convex guide block of the liner of the battery restraint tray 3, then the Y-axis push-pull electric cylinder 27 does not trigger the alarm in the first stage, and the Y-axis push-pull electric cylinder 27 is started in the second stage. At this time, the photoelectric sensor shields the sensing function (if not shielded, the concave guide block will trigger the photoelectric sensor when the probe is pressed onto the pole). The test function is completed until the pole probe is pressed onto the pole, thereby further ensuring the safety of the probe assembly 26 during the advancement process.

[0042] In order to further explain the present invention, the overall operation process of the present invention is explained as follows:

[0043] (1) Loading and positioning: The battery restraint tray 3 loaded with blade batteries is transported to the conveying roller 8 via the battery restraint tray access window 113 by a forklift. The roller drive motor 7 drives the conveying roller 8 to transport the battery restraint tray 3 backward into position. The positioning jacking cylinder 10 is then pushed up to fix the position of the battery restraint tray 3. Then, the barcode scanner 13 scans the code information on the battery restraint tray and controls the two OCV test probe modules 2 to move inward through the test control board 4.

[0044] (2) Probe module alignment: The tray lining detection photoelectric sensor 211 moves along with the electric cylinder push block 215 pushed by the probe module push-pull electric cylinder 24. After the tray lining detection photoelectric sensor 211 detects the tray lining on the battery restraint tray 3, the probe module push-pull electric cylinder 24 stops pushing. Since the probe assembly springs 217 are installed between adjacent probe assemblies 26, the distance between each probe assembly 26 is the same. Therefore, the concave guide block 267 on the probe assembly 26 can be introduced only when the thickness of each column of batteries on the tray is the same.

[0045] (3) Inspection: The Y-axis push-pull electric cylinder 27 pushes the module mounting frame 23 and the entire probe assembly 26 mounted on the module mounting frame 23 into place along the Y-axis, so that the probe assembly 26 and the battery are probe-crimped, thereby realizing the test docking of the battery and each probe assembly 26. During this period, the push of the entire array of probe assemblies 26 is carried out by the double-stroke Y-axis push-pull electric cylinder 27 in two stages to realize the guiding and crimping functions: the first stage promotes the probe module guiding function. If the concave guide block 267 does not guide into the convex guide block of the tray liner of the battery restraint tray 3, the concave guide block 267 will move backward under the action of the compression spring 266 and trigger the photoelectric sensor, then the Y-axis push-pull electric cylinder 27 will return to its original position and alarm; the second stage promotes the probe module probe crimping function. In the first stage, the concave guide block 267 guides into the convex guide block of the liner of the battery restraint tray 3, then the Y-axis push-pull electric cylinder 27 does not trigger the alarm in the first stage, and the Y-axis push-pull electric cylinder 27 is started in the second stage. At this time, the photoelectric sensor shields the sensing function (if not shielded, the concave guide block will trigger the photoelectric sensor when the probe is pressed onto the pole), and the test function is completed until the pole probe is pressed onto the pole.

[0046] (4) Material return: When all batteries have been crimped and tested, the Y-axis push-pull electric cylinder 27 drives the module mounting frame 23 and the entire probe assembly 26 installed on the module mounting frame 23 to withdraw, completing the test function. Then the positioning jacking cylinder 10 is reset, and the conveying roller 8 conveys the tested battery restraint tray 3 forward to the battery restraint tray entry and exit window 113, and the tested battery restraint tray 3 is unloaded by a forklift.

[0047] This blade battery OCV fully automatic testing equipment has a high degree of automation and intelligence, and can realize the automatic transportation, positioning and OCV detection of the battery restraint tray 3 loaded with multiple blade batteries, greatly improving the detection efficiency. Through the structural design of the OCV test probe module 2, when the thickness of each battery in the user's tray is inconsistent, the OCV test probe (temperature probe, shell probe) assembly can be compatible and crimped to the battery poles on both sides without replacing different models of probe assemblies, thereby improving the adaptability and work efficiency of the probe module. Through the structural design of the probe assembly 26, through the structural design of the concave guide block 267 and the compression spring 266, not only can the accuracy of the probe assembly 26 and the battery be crimped be improved, but also the safety of the probe assembly 26 during the advancement process can be further improved.

[0048] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings. Therefore, any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A fully automatic OCV testing equipment for blade batteries, characterized by include: The frame is provided with an electric control box and an air control box at the bottom of the frame, an outer cover is provided on the top of the frame, an operation display module is provided on the front side of the outer cover, a battery restraint tray access window is provided on the rear side of the outer cover, a safety grating is provided on the battery restraint tray access window, an OCV test mechanism is provided in the outer cover, the OCV test mechanism comprises two brackets installed on the frame in parallel and at intervals along the X direction, a test control board is installed between the tops of the two brackets, a roller conveyor mechanism is installed at the bottom of the test control board, and the rear of the roller conveyor mechanism is provided. The end is aligned with the battery restraint tray inlet and outlet window, the battery restraint tray is placed on the roller conveyor mechanism, the bottom of the frame is installed with a positioning jacking cylinder arranged vertically upward along the Z direction, the rear end of the roller conveyor mechanism is installed with a rear blocking block, and the rear blocking block is installed with an in-position micro switch, and the rear end of the roller conveyor mechanism is also installed with a barcode scanning gun arranged opposite to the battery restraint tray, and the left and right sides of the roller conveyor mechanism along the Y direction are installed with OCV test probe modules arranged opposite to the battery restraint tray, and the two OCV test probe modules are connected to the test control board through a wiring harness.

2. The blade battery OCV fully automatic testing equipment according to claim 1, characterized in that: The OCV test probe module includes a module mounting frame, an OCV test assembly is installed on the module mounting frame, two Y guide rails are installed below the module mounting frame and are distributed in parallel along the X direction, the module mounting frame is installed on the Y guide rails through the module mounting frame slider, and a Y-direction push-pull electric cylinder mounting seat is also installed at the rear of the module mounting frame, a Y-direction push-pull electric cylinder is installed on the Y-direction push-pull electric cylinder mounting seat, and the telescopic axis of the Y-direction push-pull electric cylinder is connected to the bottom of the module mounting frame.

3. The fully automatic OCV testing equipment for blade batteries according to claim 2, characterized in that: The OCV test assembly includes a probe module mounting plate installed on the back of the module mounting frame, a probe assembly X-direction guide rail is installed on the probe module mounting plate, and multiple probe assemblies are installed in parallel and at intervals on the probe assembly X-direction guide rail. The backs of adjacent probe assemblies are connected by a long hole connecting plate, and the back of each probe assembly is installed with a long hole fixing screw, which is inserted into the long hole of the long hole connecting plate. Probe assembly springs are installed between the sides of adjacent probe assemblies, and an electric cylinder push block is installed on the left end of the first probe assembly. A tray liner detection photoelectric sensor is installed on the electric cylinder push block, which is arranged along the Y direction facing the battery restraint tray. The probe module push-pull electric cylinder is installed on the module mounting frame and connected to the electric cylinder push block.

4. The fully automatic OCV testing equipment for blade batteries according to claim 3, characterized in that: The probe assembly includes a probe mounting frame, wherein slider mounting plates are installed on the top and bottom of the probe mounting frame, a slider is installed on the back of the slider mounting plate, and the probe mounting frame is embedded and installed on the probe assembly X guide rail set on the probe module mounting plate through the slider. A guide block mounting seat is installed on the top of the probe mounting frame, a concave guide block is installed at the front end of the guide block mounting seat, and a compression spring is installed between the concave guide block and the guide block mounting seat, a shell probe is installed on the front side of the probe mounting frame, a temperature probe is installed below the shell probe, and two parallel and spaced pole probes are installed below the temperature probe.

5. The blade battery OCV fully automatic testing equipment according to claim 1, characterized in that: The roller conveying mechanism includes a conveyor line guide seat, the rear end of the conveyor line guide seat is aligned with the battery restraint tray entry and exit window, and a plurality of parallel and spaced conveyor rollers are installed on the conveyor line guide seat along the X direction. The conveyor rollers are connected by synchronous belts, and the roller drive motor is installed on the conveyor line guide seat and connected to one of the conveyor rollers. The battery restraint tray is placed on the conveyor roller.

6. The fully automatic OCV testing equipment for blade batteries according to claim 4, characterized in that: A concave guide block detection photoelectric sensor is installed on the top of the probe mounting frame of the last probe assembly and is arranged facing the concave guide block along the X direction.

7. The fully automatic OCV testing equipment for blade batteries according to claim 4, characterized in that: A plurality of spring mounting holes are provided on the left side and the right side of the probe mounting frame, and one end of the probe assembly spring is inserted and mounted in the spring mounting hole.

8. The fully automatic OCV testing equipment for blade batteries according to claim 4, characterized in that: An X-direction adjusting screw is installed at the right end of the X-direction guide rail of the probe assembly.

9. The blade battery OCV fully automatic testing equipment according to claim 5, characterized in that: A forklift feed guide plate is provided at the front end of the conveyor line guide seat, and a forklift bottom guide is installed at the bottom of the frame.

10. The blade battery OCV fully automatic testing equipment according to claim 1, characterized in that: The operation display module includes an industrial computer display screen installed on the front side of the outer cover, a keyboard operation platform is installed below the industrial computer display screen, a PLC touch screen is installed on the right side of the industrial computer display screen, an emergency stop button is installed on one side of the PLC touch screen, a first OCV test meter, a second OCV test meter and a third OCV test meter are installed side by side above the industrial computer display screen, and an alarm is installed on the top of the rack.

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