A fully automatic voltage internal resistance test system

Abstract

The present invention discloses a fully automatic voltage internal resistance test system, including a material frame cart, a transfer platform with multiple material storage positions, a turntable mechanism with multiple working positions, and a material unloading platform; it also includes: a multi-joint gripper manipulator, which is used to transfer the battery cells in the cart material frame to the transfer platform; a loading and sorting visual positioning monitoring robot, which is used to grab the battery cells on the transfer platform and perform visual positioning and detection on them, and place qualified battery cells on the working position of the turntable mechanism; a pole ear shaping mechanism, a battery cell body temperature testing mechanism, a code scanning mechanism, and a battery cell voltage internal resistance testing mechanism arranged at each working position of the turntable mechanism, which are respectively used to perform pole ear shaping, battery cell body temperature testing, code scanning, and battery cell voltage internal resistance testing; a material unloading and sorting robot, which is used to unload the battery cells that have passed the test from the turntable mechanism to the unloading platform. The test system improves the efficiency of voltage internal resistance testing of large square battery cells, and the test data is relatively stable.

Description

Technical Field

[0001] The invention relates to the technical field of battery cell testing, and in particular to a full-automatic voltage internal resistance testing system. Background Art

[0002] In the prior art, the test of large-sized square batteries (mobile phone batteries) is carried out through manual inspection. Human factors lead to unstable test data, and the efficiency of manual testing of voltage and internal resistance is low; each part of the test is carried out on different equipment, and it is cumbersome to take, place and clamp the batteries; different specifications of batteries need to be tested on different types of components, and it is difficult to replace equipment components, and one-click model change cannot be achieved, and the model change speed is slow; the equipment has no insulation protection, no multiple safety protection mechanisms such as physical anti-electrical and software alarms, and is not safe enough.

[0003] In summary, how to effectively solve the problem of low efficiency in the process of manually testing voltage internal resistance is a problem that technicians in this field urgently need to solve. Summary of the invention

[0004] The purpose of the present invention is to provide a fully automatic voltage internal resistance testing system, which improves the efficiency of voltage internal resistance testing of large square batteries and provides relatively stable test data.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A fully automatic voltage internal resistance test system, comprising: a material frame cart for feeding, a transfer platform with multiple material storage positions, a turntable mechanism with multiple working positions for testing, and a material unloading platform for unloading; and also comprising:

[0007] A multi-claw manipulator, used to transfer the battery cells in the cart material frame to the transfer platform;

[0008] The loading and sorting visual positioning monitoring robot is used to grab the battery cells on the transfer platform and perform visual positioning and inspection on them, and place the qualified battery cells on the working position of the turntable mechanism, and place the NG products in the corresponding material box;

[0009] The tab shaping mechanism, the battery body temperature testing mechanism, the code scanning mechanism and the battery cell voltage internal resistance testing mechanism arranged at each working position of the turntable mechanism are used for performing tab shaping, battery body temperature testing, code scanning and battery cell voltage internal resistance testing respectively;

[0010] The unloading and sorting robot is used to unload the qualified battery cells from the turntable mechanism to the unloading platform, and place the NG products in the corresponding material boxes.

[0011] Preferably, the multi-grip manipulator includes a parallel frame, a transverse module installed on one side of the parallel frame, a guide rail installed on the other side of the parallel frame, a transverse adjustment beam installed on the transverse module and the guide rail and capable of moving, a longitudinal adjustment rod installed on the transverse adjustment beam, a lifting mechanism installed on the longitudinal adjustment rod, and a multi-grip mechanism installed on the lifting mechanism, wherein the multi-grip mechanism includes a rotating frame, a rotating motor capable of driving the rotating frame to rotate a set angle, a plurality of clamps installed on the rotating frame, and a driving device connected to the clamps for controlling the opening and closing of the clamps.

[0012] Preferably, the loading and sorting visual positioning monitoring robot includes a robot, a driving shaft installed on the robot, a suction cup installed on the lower part of the driving shaft, a camera arranged below the suction cup, and a light source arranged at the suction cup, and the driving shaft can move up and down and rotate in the mounting hole of the robot.

[0013] Preferably, the ear shaping mechanism includes a shaping frame, a lifting motor and a shaping motor fixed on the shaping frame, a movable frame installed on the horizontal slide rail of the shaping frame and connected to the shaping motor, a pressing motor installed on the movable frame, a shaping support plate installed on the vertical slide rail of the shaping frame and driven by the lifting motor, and a shaping roller assembly installed on the guide hole of the shaping frame through a bracket and driven by the pressing motor. The shaping roller assembly includes multiple groups of shaping rollers, a fixed bracket connected to the pressing motor, and a shaping adjustment motor installed on the fixed bracket. Each group of shaping rollers includes two rollers, one of which is fixed on the fixed bracket, and the other is installed on the shaping adjustment motor through a movable bracket.

[0014] Preferably, the battery cell body temperature testing mechanism includes a vertical rod installed on the shaping frame, a horizontal rod detachably connected to the vertical rod, a longitudinal rod detachably connected to the horizontal rod, and a thermometer installed on the longitudinal rod, and the battery cell body temperature testing mechanism and the tab shaping mechanism share a working position.

[0015] Preferably, the battery cell voltage internal resistance testing mechanism includes a test frame, a second adjusting motor fixed on the test frame, a mounting base installed on the guide rail of the test frame and driven by the second adjusting motor, a lifting motor and a downward pressure cylinder installed on the mounting base, a test tray installed in the guide hole of the mounting base and driven by the lifting motor, and a probe assembly installed in the guide hole of the mounting base and driven by the downward pressure cylinder, the probe assembly includes a fixing frame connected to the downward pressure cylinder, a first adjusting motor installed on the fixing frame and multiple groups of probes, each group of probes includes two probe bodies, one of which is fixed on the fixing frame, and the other is installed on the first adjusting motor through a movable frame.

[0016] Preferably, the code scanning mechanism includes a code scanning frame, an adjusting frame installed on the code scanning frame and capable of moving along a guide rail, a code scanning gun installed on the adjusting frame, and a telescopic cylinder capable of driving the code scanning gun to switch positions. The code scanning mechanism and the battery cell voltage internal resistance testing mechanism share a working position.

[0017] Preferably, the turntable mechanism includes a turntable body, a driving motor that drives the turntable body to rotate and is connected through a reducer, and a suction cup clamp arranged on the turntable body. The turntable body has four working positions, namely, a loading position, a shaping mechanism temperature test position, a code scanning internal resistance test position and a unloading position, and each of the working positions has two suction cup clamps.

[0018] Preferably, the unloading sorting robot and the loading sorting visual positioning monitoring robot grab two battery cells each time, and the unloading sorting robot and the loading sorting visual positioning monitoring robot are also provided with a waiting station for temporarily placing a single number of good products.

[0019] Preferably, the unloading platform includes a tray upper position for placing empty pallets, a battery cell unloading position for placing transferred battery cells, and an empty pallet handling robot for transferring empty pallets from the tray upper position to the battery cell unloading position; a tray loading and unloading mechanism capable of moving up and down is arranged below the tray upper position; a material frame handling robot is arranged above the material frame trolley, and a positioning block for positioning the material frame trolley is arranged on the frame.

[0020] The fully automatic voltage internal resistance testing system provided by the present invention has a material frame placed on the material frame cart, and a large-sized square battery cell is placed in the material frame, with the barcode or QR code of the battery cell facing upward, and the material frame of the cart is fed. The multi-joint gripper manipulator is located between the material frame cart and the transfer platform, and the multi-joint gripper manipulator transfers the battery cell in the cart material frame to the transfer platform. There are multiple storage positions on the transfer platform, and multiple storage positions are arranged side by side, such as six storage positions arranged in a row, and a large-sized square battery cell can be placed in the storage position. The transfer platform is only for temporarily storing large-sized square batteries for subsequent process detection. The loading and sorting visual positioning monitoring robot is located between the transfer platform and the turntable mechanism. The loading and sorting visual positioning monitoring robot can not only grab the battery cell on the transfer platform and visually locate and detect the grabbed battery cell, but also place the qualified battery cell on the work position of the turntable mechanism, and place the NG product in the corresponding material box. The turntable mechanism has multiple work positions to test different parts of the large-sized square battery cell. Each workstation of the specific turntable mechanism is equipped with a tab shaping mechanism, a cell body temperature testing mechanism, a code scanning mechanism, and a cell voltage internal resistance testing mechanism, which are used for tab shaping, cell body temperature testing, code scanning, and cell voltage internal resistance testing, respectively. At the same time, the test data and cell barcode information are bound and uploaded to the MES system or saved locally. After the test is completed, the unloading and sorting robot unloads the qualified cells from the turntable mechanism to the unloading platform, unloads and sorts the NG products, and puts the NG products in the corresponding material boxes.

[0021] The fully automatic voltage internal resistance testing system provided by the present invention detects large-sized square battery cells, such as mobile phone batteries. The voltage internal resistance testing process is highly efficient, is not affected by human factors, and the test data is stable. The equipment has insulation protection and multiple safety protection mechanisms such as physical anti-electricity and software alarms, and is relatively safe. When testing on a turntable mechanism, all tests can be completed with only one clamping, which simplifies the clamping process, saves time, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a fully automatic voltage internal resistance test system provided in a specific implementation manner of the present invention;

[0024] Figure 2 for Figure 1 Outline drawing of

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the visual positioning monitoring robot for mid-feed sorting;

[0026] Figure 4 for Figure 1 Schematic diagram of the structure of the middle ear shaping mechanism;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the voltage and internal resistance test mechanism of the battery cell;

[0028] Figure 6 for Figure 1 Structural diagram of the middle turntable mechanism;

[0029] Figure 7 for Figure 1 Schematic diagram of the structure of the multi-joint gripper manipulator;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the middle material frame handling robot;

[0031] Fig. 9 for Figure 1 Schematic diagram of the structure of the code scanning mechanism.

[0032] The following are marked in the accompanying drawings:

[0033] Material frame cart 1, multi-joint gripper manipulator 2, transfer platform 3, loading and sorting visual positioning monitoring robot 4, unloading and sorting robot 5, material box 6, empty pallet handling manipulator 7, unloading platform 8, battery cell voltage internal resistance testing mechanism 9, turntable mechanism 10, pole ear shaping mechanism 11, material frame handling manipulator 12, display 13, safety light curtain 14, touch screen operation panel 15, alarm light 16, code scanning mechanism 17, horizontal module 201, lifting mechanism 202, longitudinal adjustment beam 203, multi-joint gripper mechanism 204, robot 401, light source 402, suction cup 403, camera 404, lifting Motor 901, first adjustment motor 902, second adjustment motor 903, test tray 904, probe assembly 905, downward pressure cylinder 906, suction cup fixture 1001, rotary joint 1002, shaping roller assembly 1101, shaping tray 1102, lifting motor 1103, shaping motor 1104, shaping adjustment motor 1105, downward pressure motor 1106, thermometer 1107, moving mechanism 1201, lifter 1202, clamping jaw assembly 1203, cylinder drive 1204, code scanning frame 1701, code scanning guide rail 1702, telescopic cylinder 1703, code scanning gun 1704. DETAILED DESCRIPTION

[0034] The core of the present invention is to provide a fully automatic voltage internal resistance testing system, which improves the efficiency of voltage internal resistance testing of large square batteries and provides relatively stable test data.

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Please refer to Figures 1 to 9 , Figure 1 A schematic diagram of the structure of a fully automatic voltage internal resistance test system provided in a specific implementation manner of the present invention; Figure 2 for Figure 1 Outline drawing of Figure 3 for Figure 1 Schematic diagram of the structure of the visual positioning monitoring robot for mid-feed sorting; Figure 4 for Figure 1 Schematic diagram of the structure of the middle ear shaping mechanism; Figure 5 for Figure 1 Schematic diagram of the structure of the voltage and internal resistance test mechanism of the battery cell; Figure 6 for Figure 1 Structural diagram of the middle turntable mechanism; Figure 7 for Figure 1 Schematic diagram of the structure of the multi-joint gripper manipulator; Figure 8 for Figure 1 Schematic diagram of the structure of the middle material frame handling robot; Fig. 9 for Figure 1 Schematic diagram of the structure of the code scanning mechanism.

[0037] In a specific embodiment, the fully automatic voltage internal resistance test system provided by the present invention includes: a material frame cart 1 for feeding, a transfer platform 3 with multiple storage positions, a turntable mechanism 10 with multiple working positions for testing, and a material unloading platform 8 for unloading; and also includes:

[0038] The multi-claw manipulator 2 is used to transfer the battery cells in the cart material frame to the transfer platform 3;

[0039] The loading and sorting visual positioning monitoring robot 4 is used to grab the battery cells on the transfer platform 3 and perform visual positioning and detection on them, and place the qualified battery cells on the working position of the turntable mechanism 10, and place the NG products in the corresponding material box 6;

[0040] The tab shaping mechanism 11, the battery body temperature testing mechanism, the code scanning mechanism 17 and the battery cell voltage internal resistance testing mechanism 9 arranged at each working position of the turntable mechanism 10 are used to perform tab shaping, battery body temperature testing, code scanning and battery cell voltage internal resistance testing respectively;

[0041] The unloading and sorting robot 5 is used to unload the battery cells that have passed the test from the turntable mechanism 10 to the unloading platform 8, and put the NG products into the corresponding material box 6.

[0042] In the above structure, the fully automatic voltage internal resistance testing system includes a material frame cart 1, a transfer platform 3, a turntable mechanism 10, a material unloading platform 8, a multi-claw manipulator 2, a material loading and sorting visual positioning monitoring robot 4, a pole ear shaping mechanism 11, a battery cell body temperature testing mechanism, a code scanning mechanism 17, a battery cell voltage internal resistance testing mechanism 9 and a material unloading and sorting robot 5.

[0043] A material frame is placed on the material frame cart 1, and large square batteries are placed in the material frame, with the barcode or QR code of the battery cell facing upward, and the material is fed into the material frame of the cart.

[0044] The multi-joint gripper manipulator 2 is located between the material frame trolley 1 and the transfer platform 3 , and the multi-joint gripper manipulator 2 transfers the battery cells in the material frame of the trolley to the transfer platform 3 .

[0045] The transfer platform 3 has multiple storage positions, which are arranged side by side, such as six storage positions arranged in a row, and a large square battery cell can be placed in the storage position. The transfer platform 3 is only used to temporarily store the large square battery cell for subsequent process detection.

[0046] The loading and sorting visual positioning monitoring robot 4 is located between the transfer platform 3 and the turntable mechanism 10. The loading and sorting visual positioning monitoring robot 4 can not only grab the battery cells on the transfer platform 3 and perform visual positioning and inspection on the grabbed battery cells, but also place the qualified battery cells on the working position of the turntable mechanism 10, and place the NG products in the corresponding material box 6.

[0047] The turntable mechanism 10 has multiple working positions to test different parts of large square cells. Specifically, each working position of the turntable mechanism 10 is provided with a tab shaping mechanism 11, a cell body temperature testing mechanism, a code scanning mechanism 17 and a cell voltage internal resistance testing mechanism 9, which are used to perform tab shaping, cell body temperature testing, code scanning and cell voltage internal resistance testing, respectively. At the same time, the test data and the cell barcode information are bound and uploaded to the MES system or saved locally.

[0048] After the test is completed, the unloading and sorting robot 5 unloads the qualified battery cells from the turntable mechanism 10 to the unloading platform 8, unloads and performs NG sorting, and places the NG products in the corresponding material box 6.

[0049] The fully automatic voltage internal resistance test system is provided with a shell for protection. Each mechanism, manipulator and robot are connected to a processor, such as a PLC processor. The shell is provided with a touch screen operation panel 15, which can control the automatic operation of each mechanism, manipulator and robot for human-computer interaction. The shell is also provided with a display 13, which can observe the system operation status and results in real time. The display 13 is connected to a keyboard for operation. An alarm light 16 is provided above the shell. When the system fails to operate or is out of material, the normal green color of the warning light changes to red to give an alarm warning. The shell is also provided with a safety light curtain 14 for safety testing. When there is a fault, it will be processed on standby to protect the system.

[0050] The fully automatic voltage internal resistance testing system provided by the present invention can detect large-sized square batteries, such as mobile phone batteries. The voltage internal resistance testing process is highly efficient, is not affected by human factors, and the test data is stable. The equipment has insulation protection, multiple safety protection mechanisms such as physical anti-electricity and software alarms, and is relatively safe. When testing on the turntable mechanism 10, all tests can be completed with only one clamping, which simplifies the clamping process, saves time, and improves work efficiency.

[0051] On the basis of the above-mentioned specific implementation manner, the multi-joint gripper manipulator 2 includes a parallel frame, a transverse module 201 installed on one side of the parallel frame, a guide rail installed on the other side of the parallel frame, a transverse adjustment beam installed on the transverse module 201 and the guide rail and capable of moving, a longitudinal adjustment rod installed on the transverse adjustment beam, a lifting mechanism 202 installed on the longitudinal adjustment rod, and a multi-joint gripper mechanism 204 installed on the lifting mechanism 202. The multi-joint gripper mechanism 204 includes a rotating frame, a rotating motor capable of driving the rotating frame to rotate a set angle, a plurality of grippers installed on the rotating frame, and a driving device connected to the grippers for controlling the opening and closing of the grippers.

[0052] In the above structure, the multi-joint gripper manipulator 2 includes a parallel frame, a transverse module 201, a guide rail, a longitudinal adjustment beam 203, a lifting mechanism 202 and a multi-joint gripper mechanism 204. The parallel frame includes two parallel beams. The transverse module 201 is installed on one parallel beam of the parallel frame, and the guide rail is installed on the other parallel beam of the parallel frame. The transverse module 201 and the guide rail are parallel to each other. One end of the longitudinal adjustment beam 203 is installed on the transverse module 201, and the other end has a slot, and the guide rail is installed in the slot. The transverse adjustment beam can move along the transverse module 201 and the guide rail, and the guide rail has a guiding function to prevent the transverse adjustment beam from slipping.

[0053] The longitudinal adjustment rod is installed on the transverse adjustment beam, and the lifting mechanism 202 is installed on the longitudinal adjustment rod. The lifting mechanism 202 can move left and right on the longitudinal adjustment rod. The multi-joint clamping mechanism 204 is installed on the lifting mechanism 202, so that the height of the multi-joint clamping mechanism 204 can be adjusted. Therefore, the multi-joint clamping mechanism 204 can realize its front and back, left and right, up and down movement through the transverse module 201, the transverse adjustment beam, the longitudinal adjustment rod and the lifting mechanism 202, and the position adjustment of the multi-joint clamping mechanism 204 is relatively flexible. By adjusting the position of the multi-joint clamping mechanism 204, the battery cell can be accurately grasped from the material frame cart 1 and transported to the transfer platform 3, which is not limited by the position of the battery cell, has a wide range of applications, and is relatively convenient and flexible to control.

[0054] At the same time, the multi-joint gripper mechanism 204 includes a rotating frame, a rotating motor, a plurality of grippers, and a driving device. The rotating frame is connected to the rotating motor. The rotating motor can drive the rotating frame to rotate a set angle. The plurality of grippers are installed on the rotating frame, that is, the grippers can be controlled to rotate a set angle, such as 90 degrees. The initial state of the battery cell is vertical. After the multi-joint gripper mechanism 204 grabs the battery cell and rotates 90 degrees, the battery cell is placed horizontally on the transfer platform 3.

[0055] It should be noted that the number of the clamps is multiple, for example, 6, and the multi-clamp mechanism 204 grabs 6 battery cells each time to improve work efficiency. Preferably, the number of the clamps is equal to the number of storage positions on the transfer platform 3, and the utilization rate is high.

[0056] The driving device is connected to the clamping jaws to control the opening and closing of the clamping jaws. The specific driving device can be a cam mechanism and a clamping motor. When the battery cell is grasped, the clamping jaws are closed, and when the battery cell needs to be put down, the clamping jaws are opened. It is easy to control and convenient to use.

[0057] In another more reliable embodiment, based on any one of the above embodiments, the loading and sorting visual positioning monitoring robot 4 includes a robot 401, a driving shaft installed on the robot 401, a suction cup 403 installed at the lower part of the driving shaft, a camera 404 arranged below the suction cup 403, and a light source 402 arranged at the suction cup 403, and the driving shaft can move up and down and rotate in the mounting hole of the robot 401.

[0058] In the above structure, the loading and sorting visual positioning monitoring robot 4 includes a robot 401, a drive shaft, a suction cup 403, a camera 404, and a light source 402. The drive shaft is installed on the robot 401, and the drive shaft can move up and down and rotate in the mounting hole of the robot 401. The suction cup 403 is installed at the lower part of the drive shaft, so that the suction cup 403 can move up and down and rotate to grab and transfer the battery cell. The camera 404 is arranged below the suction cup 403, and the light source 402 is arranged at the suction cup 403, and the light source 402 provides the light source 402 for the camera 404. The camera 404 can be used to visually locate and detect the battery cell, and the NG products of the tabs are removed, and the battery cell tabs are qualified when the various mechanisms of the turntable mechanism 10 are tested, avoiding subsequent unnecessary tests.

[0059] For the fully automatic voltage internal resistance testing system in each of the above-mentioned embodiments, the ear shaping mechanism 11 includes a shaping frame, a lifting motor 1103 and a shaping motor 1104 fixed on the shaping frame, a movable frame installed on the horizontal slide rail of the shaping frame and connected to the shaping motor 1104, a pressing motor 1106 installed on the movable frame, a shaping support plate 1102 installed on the vertical slide rail of the shaping frame and driven by the lifting motor 1103, and a shaping roller assembly 1101 installed on the guide hole of the shaping frame through a bracket and driven by the pressing motor 1106. The shaping roller assembly 1101 includes multiple groups of shaping rollers, a fixed bracket connected to the pressing motor 1106, and a shaping adjustment motor 1105 installed on the fixed bracket. Each group of shaping rollers includes two rollers, one of which is fixed on the fixed bracket, and the other is installed on the shaping adjustment motor 1105 through a movable bracket.

[0060] In the above structure, the ear shaping mechanism 11 includes a shaping frame, a lifting motor 1103, a shaping motor 1104, a movable frame, a pressing motor 1106, a shaping pallet 1102, and a shaping roller assembly 1101. The shaping motor 1104 is fixed to the side of the shaping frame. The top surface of the shaping frame has a horizontal slide rail, and the side surface has a vertical slide rail. The bottom surface of the movable frame has a card block, and the card block of the movable frame is installed on the horizontal slide rail. The movable frame is connected to the shaping motor 1104, and the shaping motor 1104 can drive the movable frame to move forward and backward, so that the components installed on the movable frame can move forward and backward.

[0061] The lifting motor 1103 is fixed to the lower end of the shaping frame, the block of the shaping pallet 1102 is installed in the vertical slide rail of the shaping frame, the lifting motor 1103 is connected to the shaping pallet 1102, and the lifting motor 1103 can drive the shaping pallet 1102 to move up and down.

[0062] The downward pressure motor 1106 is installed at the upper end of the movable frame. There is a guide hole on the vertical plate of the shaping frame. The shaping roller assembly 1101 is installed at the guide hole through a bracket. The downward pressure motor 1106 is connected to the shaping roller assembly 1101. The downward pressure motor 1106 can drive the shaping roller assembly 1101 to move up and down along the guide hole.

[0063] At the same time, the shaping roller assembly 1101 includes multiple groups of shaping rollers, a fixed bracket, and a shaping adjustment motor 1105. The fixed bracket is connected to the downward pressure motor 1106. The shaping adjustment motor 1105 is installed on the fixed bracket. The downward pressure motor 1106 drives the fixed bracket and the various components installed on the fixed bracket to move up and down.

[0064] Each set of shaping rollers includes two rollers, one of which is fixed on a fixed bracket. After the height of the roller is adjusted, the position is fixed. The other is installed on the shaping adjustment motor 1105 through a movable bracket. The shaping adjustment motor 1105 can drive the roller to move left and right, so as to adjust the distance between the two rollers, so as to detect battery cells of different specifications. There is no need to replace equipment parts, and one-click change of shape is achieved, and the change of shape is fast.

[0065] On the basis of the above specific implementation manner, the battery body temperature testing mechanism includes a vertical rod, a horizontal rod, a longitudinal rod and a thermometer 1107. The vertical rod is installed on the shaping frame, the horizontal rod is detachably connected to the vertical rod, and the longitudinal rod is detachably connected to the horizontal rod. The thermometer 1107 is installed on the longitudinal rod. The vertical rod, horizontal rod and longitudinal rod can be adjusted up and down, front and back, and front and back positions of the thermometer 1107. The position of the thermometer 1107 can be accurately positioned to improve the accuracy of temperature measurement.

[0066] It should be noted that the battery cell body temperature testing mechanism and the tab shaping mechanism 11 can share a working position. The battery cell body temperature testing mechanism is installed on the shaping frame, which reduces the number of working positions of the turntable mechanism 10 and simplifies the structure.

[0067] In another more reliable embodiment, based on any of the above embodiments, the battery cell voltage internal resistance testing mechanism 9 includes a test frame, a second adjusting motor 903 fixed on the test frame, a mounting base installed on the test frame guide rail and driven by the second adjusting motor 903, a lifting motor 901 and a downward pressure cylinder 906 installed on the mounting base, a test tray 904 installed in the guide hole of the mounting base and driven by the lifting motor 901, and a probe assembly 905 installed in the guide hole of the mounting base and driven by the downward pressure cylinder 906. The probe assembly 905 includes a fixed frame connected to the downward pressure cylinder 906, a first adjusting motor 902 installed on the fixed frame, and multiple groups of probes, each group of probes includes two probe bodies, one of which is fixed on the fixed frame, and the other is installed on the first adjusting motor 902 through a movable frame.

[0068] In the above structure, the battery cell voltage internal resistance testing mechanism 9 includes a test frame, a second adjusting motor 903, a mounting seat, a lifting motor 901, a downward pressure cylinder 906, a test tray 904, and a probe assembly 905. The second adjusting motor 903 is fixed on the test frame, the mounting seat is installed on the guide rail of the test frame, the mounting seat is connected to the second adjusting motor 903, and the second adjusting motor 903 can drive the mounting seat to move.

[0069] The lifting motor 901 is installed on the mounting seat, the test pallet 904 is installed at the guide hole of the mounting seat, the test pallet 904 is connected to the lifting motor 901, and the lifting motor 901 can drive the test pallet 904 to move up and down.

[0070] The downward pressure cylinder 906 is installed on the mounting seat, the probe assembly 905 is installed at the guide hole of the mounting seat, the probe assembly 905 is connected to the downward pressure cylinder 906, and the downward pressure cylinder 906 can drive the probe assembly 905 to move up and down. Specifically, the probe assembly 905 includes a fixed frame, a first adjustment motor 902 and multiple groups of probes, the fixed frame is connected to the downward pressure cylinder 906, the first adjustment motor 902 and multiple groups of probes are installed on the fixed frame, and the downward pressure cylinder 906 can drive the fixed frame and various components on the fixed frame to move.

[0071] At the same time, each set of probes includes two probe bodies, one of which is fixed on a fixed frame, and the position of the probe body is fixed after the height is adjusted, and the other is installed on the first adjustment motor 902 through a movable frame. The first adjustment motor 902 can drive the probe body to move left and right, so that the distance between the two probe bodies can be adjusted, so as to detect batteries of different specifications, without replacing equipment parts, and realize one-key type change, and the type change speed is fast.

[0072] For the fully automatic voltage internal resistance test system in each of the above embodiments, the code scanning mechanism 17 includes a code scanning frame 1701, an adjustment frame, a code scanning gun 1704 and a telescopic cylinder 1703. The end face of the code scanning frame 1701 has a guide rail, and the adjustment frame is installed on the guide rail of the code scanning frame 1701, and the adjustment frame can move along the guide rail. The code scanning gun 1704 is installed on the adjustment frame, and the adjustment frame can adjust the position of the code scanning gun 1704 up and down, left and right, front and back. The telescopic cylinder 1703 is installed on the code scanning frame 1701, and the end of its telescopic rod is connected to the adjustment frame. The telescopic rod has two working positions for extension and retraction. These two working positions can drive the code scanning gun 1704 to have two positions, thereby switching the position of the code scanning gun 1704 so that the code scanning gun 1704 can accurately scan the code.

[0073] It should be noted that the code scanning mechanism 17 and the cell voltage internal resistance test mechanism 9 share a working position. The code scanning frame 1701 of the code scanning mechanism 17 is installed on the test frame, which reduces the number of working positions of the turntable mechanism 10 and simplifies the structure.

[0074] The fully automatic voltage internal resistance testing system provided by the present invention, when other components remain unchanged, the turntable mechanism 10 includes a turntable body, a drive motor, and a suction cup fixture 1001. The drive motor is connected to the turntable body through a reducer, and the drive motor drives the turntable body to rotate. The wires are arranged in the rotary joint 1002, which can also avoid the entanglement of the wires. The turntable body has four working positions, namely, the loading position, the shaping mechanism temperature test position, the code scanning internal resistance test position and the unloading position. These four working positions can be evenly distributed, that is, one working position is converted every 90 degrees of rotation of the turntable body. The suction cup fixture 1001 is arranged on the turntable body, and each working position has two suction cup fixtures 1001. Each suction cup fixture 1001 adsorbs a battery cell, and the two battery cells are tested in turn.

[0075] On the basis of the above specific implementation, the unloading sorting robot 5 and the loading sorting visual positioning monitoring robot 4 grab two battery cells each time, and the work efficiency is improved. The unloading sorting robot 5 and the loading sorting visual positioning monitoring robot 4 are also provided with a waiting station. When one of the two battery cells detected by the unloading sorting robot 5 and the loading sorting visual positioning monitoring robot 4 is a qualified product and the other is a failed product, the single qualified product is temporarily placed in the waiting station, and the unloading sorting robot 5 and the loading sorting visual positioning monitoring robot 4 are transferred to the next process when a single qualified product appears next time, so as to ensure that two battery cells are detected each time and improve work efficiency.

[0076] For the fully automatic voltage internal resistance testing system in each of the above-mentioned embodiments, the unloading platform 8 includes a tray loading position, a battery cell unloading position and an empty tray handling robot 7. The tray loading position is used to place an empty tray, the battery cell unloading position is used to place the transferred battery cells, and the empty tray handling robot 7 is used to transfer the empty tray from the tray loading position to the battery cell unloading position to realize the empty tray transfer.

[0077] A pallet loading and unloading mechanism is arranged below the pallet loading position, and the pallet loading and unloading mechanism can move the pallet loading position up and down, so that the height of the top pallet is maintained at a set position, so that the empty pallet handling robot 7 can smoothly grab the empty pallet.

[0078] A material frame transporting robot 12 is arranged above the material frame trolley 1. After the battery cells are transferred from the material frame, the material frame transporting robot 12 transfers the empty material frame to another empty trolley for subsequent use.

[0079] It should be noted that the material frame handling robot 12 includes a bracket, a moving mechanism 1201 installed on the bracket, a lifter 1202 installed on the moving mechanism 1201, a clamping jaw assembly 1203 installed on the lifter 1202, and the clamping jaw assembly 1203 is connected to the cylinder drive 1204, and the cylinder drive 1204 can drive the clamping jaw assembly 1203 to clamp the material frame.

[0080] A positioning block is provided on the frame, and the material frame trolley 1 is positioned at the positioning block to ensure that the material frame trolley 1 is positioned accurately.

[0081] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0082] The above is a detailed introduction to the fully automatic voltage internal resistance test system provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic voltage internal resistance test system, characterized in that: include: A material frame cart (1) for feeding, a transfer platform (3) with multiple material storage positions, a turntable mechanism (10) with multiple working positions for testing, and a material unloading platform (8) for unloading; and further comprising: A multi-joint gripper manipulator (2) used for transferring the battery cells in the material frame cart (1) to the transfer platform (3); A loading and sorting visual positioning monitoring robot (4) is used to grab the battery cells on the transfer platform (3) and perform visual positioning and detection on them, and place qualified battery cells on the working position of the turntable mechanism (10) and place NG products in the corresponding material box (6); The lug shaping mechanism (11), the battery cell body temperature testing mechanism, the code scanning mechanism (17) and the battery cell voltage internal resistance testing mechanism (9) are arranged at each working position of the turntable mechanism (10), and are used to perform lug shaping, battery cell body temperature testing, code scanning and battery cell voltage internal resistance testing, respectively. The lug shaping mechanism (11) comprises a shaping frame, a lifting motor (1103) and a shaping motor (1104) fixed on the shaping frame, a movable frame installed on the horizontal slide rail of the shaping frame and connected to the shaping motor (1104), a pressing motor (1106) installed on the movable frame, and a The shaping support plate (1102) is connected to the vertical slide rail of the shaping frame and driven by the lifting motor (1103); and the shaping roller assembly (1101) is installed in the guide hole of the shaping frame through a bracket and driven by the pressing motor (1106). The shaping roller assembly (1101) includes a plurality of groups of shaping rollers, a fixed bracket connected to the pressing motor (1106), and a shaping adjustment motor (1105) installed on the fixed bracket. Each group of shaping rollers includes two rollers, one of which is fixed on the fixed bracket, and the other is installed on the shaping adjustment motor (1105) through a movable bracket. The unloading and sorting robot (5) is used to unload the battery cells that have passed the test from the turntable mechanism (10) to the unloading platform (8), and place the NG products in the corresponding material box (6).

2. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The multi-joint gripper manipulator (2) comprises a parallel frame, a transverse module (201) mounted on one side of the parallel frame, a guide rail mounted on the other side of the parallel frame, a transverse adjustment beam mounted on the transverse module (201) and the guide rail and capable of moving, a longitudinal adjustment rod mounted on the transverse adjustment beam, a lifting mechanism (202) mounted on the longitudinal adjustment rod, and a multi-joint gripper mechanism (204) mounted on the lifting mechanism (202), wherein the multi-joint gripper mechanism (204) comprises a rotating frame, a rotating motor capable of driving the rotating frame to rotate to a set angle, a plurality of grippers mounted on the rotating frame, and a driving device connected to the grippers for controlling the opening and closing of the grippers.

3. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The loading, sorting, visual positioning and monitoring robot (4) comprises a robot (401), a driving shaft mounted on the robot (401), a suction cup (403) mounted at the bottom of the driving shaft, a camera (404) arranged below the suction cup (403), and a light source (402) arranged at the suction cup (403); the driving shaft is capable of moving up and down and rotating in a mounting hole of the robot (401).

4. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The battery cell body temperature testing mechanism comprises a vertical rod mounted on the shaping frame, a horizontal rod detachably connected to the vertical rod, a longitudinal rod detachably connected to the horizontal rod, and a temperature measuring instrument (1107) mounted on the longitudinal rod. The battery cell body temperature testing mechanism and the tab shaping mechanism (11) share a working position.

5. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The cell voltage internal resistance test mechanism (9) comprises a test frame, a second adjustment motor (903) fixed on the test frame, a mounting seat mounted on the test frame guide rail and driven by the second adjustment motor (903), a lifting motor (901) and a downward pressure cylinder (906) mounted on the mounting seat, a test support plate (904) mounted on a guide hole of the mounting seat and driven by the lifting motor (901), and a probe assembly (905) mounted on the guide hole of the mounting seat and driven by the downward pressure cylinder (906), wherein the probe assembly (905) comprises a fixing frame connected to the downward pressure cylinder (906), a first adjustment motor (902) mounted on the fixing frame, and a plurality of probe groups, each probe group comprising two probe bodies, one of which is fixed on the fixing frame and the other of which is mounted on the first adjustment motor (902) via a movable frame.

6. The fully automatic voltage internal resistance test system according to claim 5, characterized in that: The code scanning mechanism (17) comprises a code scanning frame (1701), an adjustment frame mounted on the code scanning frame (1701) and capable of moving along a guide rail, a code scanning gun (1704) mounted on the adjustment frame, and a telescopic cylinder (1703) capable of driving the code scanning gun (1704) to switch positions. The code scanning mechanism (17) and the battery cell voltage internal resistance testing mechanism (9) share a working position.

7. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The turntable mechanism (10) comprises a turntable body, a drive motor that drives the turntable body to rotate and is connected via a reducer, and a suction cup clamp (1001) disposed on the turntable body, wherein the turntable body has four working positions, namely a loading position, a shaping mechanism temperature test position, a code scanning internal resistance test position, and a unloading position, and each of the working positions has two suction cup clamps (1001).

8. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The unloading and sorting robot (5) and the loading and sorting visual positioning monitoring robot (4) grab two battery cells each time, and the unloading and sorting robot (5) and the loading and sorting visual positioning monitoring robot (4) are also provided with a waiting station for temporarily placing a single number of good products.

9. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The unloading platform (8) comprises a tray upper material position for placing an empty tray, a battery cell unloading material position for placing transferred battery cells, and an empty tray transporting robot (7) for transferring an empty tray from the tray upper material position to the battery cell unloading material position, and a tray loading and unloading mechanism capable of moving the empty tray up and down is arranged below the tray upper material position; a material frame transporting robot (12) is arranged above the material frame trolley (1), and a positioning block for positioning the material frame trolley (1) is arranged on the frame.

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