A fully automatic voltage internal resistance test system

Abstract

The invention discloses a fully automatic voltage internal resistance test system, including a loading platform, an advance and retreat work platform, a turntable mechanism, and a material unloading conveyor belt; a loading and sorting visual positioning monitoring robot, which is used to grab the battery cells on the loading platform and perform visual positioning and detection on them, and place the battery cells on the advance and retreat work platform; a side voltage testing mechanism, which is used to perform side voltage testing on the battery cells on the advance and retreat work platform; an upper turntable transfer manipulator, which is used to transfer qualified battery cells to 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, which are arranged at each working position of the turntable mechanism, are used to perform pole ear shaping, battery cell body temperature testing, code scanning, and battery cell voltage internal resistance testing, respectively; and a material unloading sorting robot, which is used to unload the battery cells from the turntable mechanism to the unloading conveyor belt. The test system improves the efficiency of voltage internal resistance testing of small 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 small square batteries (Bluetooth headsets) 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 small 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 loading platform for placing a loading stacking tray, an advance and retreat work platform capable of moving the position of a battery cell, a turntable mechanism with multiple working positions for testing, and a unloading conveyor belt for unloading; and also comprising:

[0007] The loading and sorting visual positioning monitoring robot is used to grab the battery cells on the loading platform and perform visual positioning and detection on them, and place the qualified battery cells on the advance and retreat work platform, and place the NG products in the corresponding material box;

[0008] A side voltage testing mechanism located at the rear end of the advancing and retreating working platform is used to perform side voltage testing on the battery cells pushed by the advancing and retreating working platform;

[0009] The upper turntable transfer manipulator is used to transfer the battery cells that have passed the test of the voltage testing mechanism to the turntable mechanism;

[0010] 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;

[0011] The unloading and sorting robot is used to unload the battery cells that have passed the test from the turntable mechanism to the unloading conveyor belt, and place the NG products in the corresponding NG collection box.

[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 loading platform includes a loading position for placing loading stacking pallets, an empty pallet position for placing empty pallets, and an empty pallet handling robot for transferring empty pallets from the loading position to the empty pallet position, and a pallet loading and unloading mechanism capable of moving it up and down is provided under the loading platform.

[0014] Preferably, the advance and retreat working platform includes an upper slide, a lower slide, an upper fixed layer installed in the upper slide, a liftable layer installed in the lower slide and capable of descending through the lower space of the upper fixed layer, a moving motor for driving the upper fixed layer and the liftable layer to move, and a lifting cylinder for driving the liftable layer to rise and fall.

[0015] Preferably, the edge voltage testing mechanism includes an edge measuring frame, a lifting motor and a pressing motor fixed on the edge measuring frame, an edge measuring support plate installed in a guide hole of the edge measuring frame and driven by the lifting motor, an edge measuring probe assembly driven by the pressing motor, and a bayonet assembly installed in the middle of the edge measuring frame.

[0016] The edge detection probe assembly includes multiple groups of probe pieces, a fixed bracket connected to the pressing motor, and a probe adjustment motor installed on the fixed bracket, each group of the probe pieces includes two probes, one of which is fixed on the fixed bracket, and the other is installed on the probe adjustment motor through a movable bracket;

[0017] The bayonet assembly includes multiple groups of bayonet parts, a bayonet adjustment motor fixed on the edge detection frame, and a movable plate installed on the guide strip of the edge detection frame and moved by the bayonet adjustment motor. Each group of the bayonet parts includes two bayonets, one of which is fixed on the edge detection frame, and the other is connected to the movable plate through a spring.

[0018] Preferably, the pole 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, 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;

[0019] The battery cell body temperature testing mechanism includes a lifting cylinder installed in the mounting hole of the shaping frame, a mounting frame connected to the bottom of the lifting cylinder, and a thermometer installed on the mounting frame. The battery cell body temperature testing mechanism and the tab shaping mechanism share a working position.

[0020] Preferably, the battery cell voltage internal resistance testing mechanism comprises a test frame, a second adjusting motor fixed on the test frame, a mounting base mounted on the guide rail of the test frame and driven by the second adjusting motor, a lifting motor and a pressing cylinder mounted on the mounting base, a test support plate mounted on the guide hole of the mounting base and driven by the lifting motor, and a test probe assembly mounted on the guide hole of the mounting base and driven by the pressing cylinder, the test probe assembly comprises a fixing frame connected to the pressing cylinder, a first adjusting motor mounted on the fixing frame and a plurality of groups of probes, each group of the probes comprises two probe bodies, one of which is fixed on the fixing frame, and the other is mounted on the first adjusting motor through a movable frame;

[0021] The code scanning mechanism includes a code scanning frame, an adjustment frame installed on the code scanning frame and capable of moving along a code scanning guide rail, a code scanning gun installed on the adjustment 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.

[0022] 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.

[0023] Preferably, the NG collection box includes an upper material box with an inner rack at the bottom, a lower material box with an outer rack at the bottom, a telescopic cylinder fixed under the outer rack for driving the outer rack to reciprocate, and a gear located between the outer rack and the inner rack and meshing with both the inner rack and the outer rack.

[0024] 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.

[0025] The fully automatic voltage internal resistance testing system provided by the present invention has a loading stacking tray placed on the loading platform, and a small-sized square battery cell is placed in the material frame, with the barcode or QR code of the battery cell facing upward. The loading and sorting visual positioning monitoring robot is located between the loading platform and the advance and retreat work platform. The loading and sorting visual positioning monitoring robot can not only grab the battery cells on the loading platform and perform visual positioning and detection on the grabbed battery cells, but also place the qualified battery cells on the advance and retreat work platform, and place the NG products in the corresponding material box. The loading and sorting visual positioning monitoring robot places the qualified battery cells at the front end of the advance and retreat work platform, and the advance and retreat work platform moves the battery cells to the end. The side voltage testing mechanism is located at the rear end of the advance and retreat work platform, and the side voltage testing mechanism performs side voltage testing on the battery cells pushed in by the advance and retreat work platform. The battery cells tested qualified by the voltage testing mechanism are transferred to the turntable mechanism by the upper turntable transfer manipulator. The turntable mechanism has multiple working positions to test different parts of the small-sized square battery cells. 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 conveyor belt, unloads and sorts the NG products, and puts the NG products in the corresponding material box.

[0026] The fully automatic voltage internal resistance testing system provided by the present invention detects small-sized square batteries, such as earphones. The voltage internal resistance testing process is highly efficient, 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

[0027] 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.

[0028] 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;

[0029] Figure 2 for Figure 1 Outline drawing of

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the visual positioning monitoring robot for mid-feed sorting;

[0031] Figure 4 for Figure 1 The structural diagram of the center-side voltage test mechanism;

[0032] Figure 5 for Figure 1 Structural diagram of the middle advance and retreat working platform;

[0033] Figure 6 for Figure 1 Schematic diagram of the structure of the middle ear shaping mechanism;

[0034] Figure 7 for Figure 1 Schematic diagram of the structure of the voltage and internal resistance test mechanism of the battery cell;

[0035] Figure 8 for Figure 1 Schematic diagram of the structure of the NG collection box;

[0036] Fig. 9 for Figure 1 Structural diagram of the middle turntable mechanism;

[0037] Fig.10 for Figure 1 Schematic diagram of the structure of the transfer robot on the middle upper turntable;

[0038] Fig.11 for Figure 1 Schematic diagram of the structure of the code scanning mechanism.

[0039] The following are marked in the accompanying drawings:

[0040] Loading platform 1, empty pallet handling manipulator 2, NG material box 3, loading sorting visual positioning monitoring robot 4, advance and retreat work platform 5, upper turntable transfer manipulator 6, edge voltage testing mechanism 7, pole ear shaping mechanism 8, turntable mechanism 9, unloading sorting robot 10, unloading conveyor belt 11, NG collection box 12, battery cell voltage internal resistance testing mechanism 13, touch screen operation panel 14, safety light curtain 15, alarm light 16, display 17, code scanning mechanism 18, robot 401, light source 402, suction cup 403, camera 404, bracket 601, moving mechanism 602, cylinder 603, suction cup assembly 604, bayonet adjustment motor 701, lifting motor 702, bayonet Assembly 703, edge measuring probe assembly 704, pressing motor 705, probe adjustment motor 706, lifting cylinder 801, thermometer 802, shaping roller assembly 803, shaping pallet 804, lifting motor 805, shaping motor 806, pressing motor 807, rotary joint 901, suction cup clamp 902, telescopic cylinder 1201, lower material box 1202, upper material box 1203, lifting motor 1301, first adjustment motor 1302, second adjustment motor 1303, test pallet 1304, test probe assembly 1305, pressing cylinder 1306, code scanning rack 1801, code scanning guide rail 1802, telescopic cylinder 1803, code scanning gun 1804. DETAILED DESCRIPTION

[0041] 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 small square batteries and provides relatively stable test data.

[0042] 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.

[0043] Please refer to Figures 1 to 11 , 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 The structural diagram of the center-side voltage test mechanism; Figure 5 for Figure 1 Structural diagram of the middle advance and retreat working platform; Figure 6 for Figure 1Schematic diagram of the structure of the middle ear shaping mechanism; Figure 7 for Figure 1 Schematic diagram of the structure of the voltage and internal resistance test mechanism of the battery cell; Figure 8 for Figure 1 Schematic diagram of the structure of the NG collection box; Fig. 9 for Figure 1 Structural diagram of the middle turntable mechanism; Fig.10 for Figure 1 Schematic diagram of the structure of the transfer robot on the middle upper turntable; Fig.11 for Figure 1 A schematic structural diagram of the middle code scanning mechanism 18.

[0044] In a specific embodiment, the fully automatic voltage internal resistance test system provided by the present invention includes: a loading platform 1 for placing a loading stacking tray, an advance and retreat work platform 5 capable of moving the position of the battery cell, a turntable mechanism 9 with multiple working positions for testing, and a unloading conveyor belt 11 for unloading; and also includes:

[0045] The feeding, sorting and visual positioning monitoring robot 4 is used to grab the battery cells on the feeding platform 1 and perform visual positioning and detection on them, and place the qualified battery cells on the advance and retreat work platform 5, and place the NG products in the corresponding material box;

[0046] The side voltage testing mechanism 7 located at the rear end of the advancing and retreating working platform 5 is used to perform side voltage testing on the battery cells pushed by the advancing and retreating working platform 5;

[0047] The upper turntable transfer robot 6 is used to transfer the battery cells that have passed the voltage test to the turntable mechanism 9;

[0048] The tab shaping mechanism 8, the battery body temperature testing mechanism, the code scanning mechanism 18 and the battery cell voltage internal resistance testing mechanism 13 arranged at each working position of the turntable mechanism 9 are used to perform tab shaping, battery body temperature testing, code scanning and battery cell voltage internal resistance testing respectively;

[0049] The unloading and sorting robot 10 is used to unload the battery cells that have passed the test from the turntable mechanism 9 to the unloading conveyor belt 11, and put the NG products into the corresponding NG material box 3.

[0050] In the above structure, the fully automatic voltage internal resistance testing system includes a loading platform 1, an advance and retreat working platform 5, a turntable mechanism 9, a unloading conveyor belt 11, a loading and sorting visual positioning monitoring robot 4, an edge voltage testing mechanism 7, an upper turntable transfer manipulator 6, a pole ear shaping mechanism 8, a battery cell body temperature testing mechanism, a code scanning mechanism 18, a battery cell voltage internal resistance testing mechanism 13 and an unloading and sorting robot 10.

[0051] The loading stacking tray is placed on the loading platform 1, and the small square battery cells are placed in the material frame, with the barcode or QR code of the battery cells facing upward.

[0052] The loading and sorting visual positioning monitoring robot 4 is located between the loading platform 1 and the advance and retreat work platform 5. The loading and sorting visual positioning monitoring robot 4 can not only grab the battery cells on the loading platform 1 and perform visual positioning and detection on the grabbed battery cells, but also place the qualified battery cells on the advance and retreat work platform 5 and place the NG products in the corresponding material boxes.

[0053] The loading and sorting visual positioning monitoring robot 4 places the qualified battery cells at the front end of the advance and retreat working platform 5, and the advance and retreat working platform 5 moves the battery cells to the end.

[0054] The side voltage testing mechanism 7 is located at the rear end of the advancing and retreating working platform 5 , and the side voltage testing mechanism 7 performs side voltage testing on the battery cells pushed in by the advancing and retreating working platform 5 .

[0055] The battery cells that have passed the voltage test are transferred to the turntable mechanism 9 through the upper turntable transfer robot 6. It should be noted that the upper turntable transfer robot 6 includes a bracket 601, a mobile mechanism 602 installed on the bracket 601, and a suction cup assembly 604 installed on the mobile mechanism 602. The suction cup assembly 604 is connected to the cylinder 603, and the cylinder 603 can drive the suction cup assembly 604 to rise and fall.

[0056] The turntable mechanism 9 has multiple working positions to test different parts of the small square battery cells. Specifically, each working position of the turntable mechanism 9 is provided with a tab shaping mechanism 8, a battery body temperature testing mechanism, a code scanning mechanism 18 and a battery cell voltage internal resistance testing mechanism 13, which are used to perform tab shaping, battery body temperature testing, code scanning and battery cell voltage internal resistance testing, respectively. At the same time, the test data and the battery cell barcode information are bound and uploaded to the MES system or saved locally.

[0057] After the test is completed, the unloading and sorting robot 10 unloads the qualified battery cells from the turntable mechanism 9 to the unloading conveyor belt 11, unloads and sorts the NG products, and puts the NG products in the corresponding material boxes.

[0058] 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 14, which can control the automatic operation of each mechanism, manipulator and robot for human-computer interaction. The shell is also provided with a display 17, which can observe the system operation status and results in real time. The display 17 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 alarm light 16 changes to red to give an alarm warning. The shell is also provided with a safety light curtain 15 for safety testing. When there is a failure, it will be processed on standby to protect the system.

[0059] The fully automatic voltage internal resistance testing system provided by the present invention detects small-sized square batteries, such as earphones. 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 the turntable mechanism 9, all tests can be completed with only one clamping, which simplifies the clamping process, saves time, and improves work efficiency.

[0060] Based on the above specific implementation method, 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. The driving shaft can move up and down and rotate in the mounting hole of the robot 401.

[0061] 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 camera 404 with a light source 402. 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 9 are tested, avoiding subsequent unnecessary tests.

[0062] In another more reliable embodiment, based on any one of the above embodiments, the loading platform 1 includes a loading position, an empty pallet position and an empty pallet handling robot 2, the loading position is used to place the loading stacking pallet, the empty pallet position is used to place the empty pallet, and the empty pallet handling robot 2 is used to transfer the empty pallet from the loading position to the empty pallet position to realize the empty pallet transfer.

[0063] A pallet loading and unloading mechanism is provided below the loading platform, and the pallet loading and unloading mechanism can move the 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 2 can smoothly grab the empty pallet.

[0064] On the basis of the above specific implementation, the advance and retreat work platform 5 includes an upper slide, a lower slide, an upper fixed layer, a moving motor, a liftable layer and a lifting cylinder. The upper fixed layer is installed in the upper slide, and the liftable layer is installed in the lower slide. The lifting cylinder can drive the liftable layer to move up and down. After the liftable layer is lowered, it can pass through the space below the upper fixed layer. There are two moving motors, which drive the upper fixed layer and the liftable layer to move respectively. The advance and retreat work platform 5 has a double-layer structure, one layer is at the front end to receive the battery cell; the other layer is at the end, and the side voltage testing mechanism 7 detects the battery cell. The two layers work at the same time, shortening the cycle period and achieving high efficiency.

[0065] For the fully automatic voltage internal resistance test system in each of the above embodiments, the edge voltage test mechanism 7 includes an edge measurement frame, a lifting motor 702, a pressing motor 705, an edge measurement support plate, an edge measurement probe assembly 704, and a bayonet assembly 703. The lifting motor 702 and the pressing motor 705 are fixed to the edge measurement frame, the edge measurement support plate and the edge measurement probe assembly 704 are installed in the guide hole of the edge measurement frame, the edge measurement support plate is connected to the lifting motor 702, and the lifting motor 702 drives the edge measurement support plate to move up and down. The edge measurement probe assembly 704 is connected to the pressing motor 705, and the pressing motor 705 drives the edge measurement probe assembly 704 to move up and down.

[0066] The edge measurement probe assembly 704 includes multiple groups of probe parts, a fixed bracket, and a probe adjustment motor 706. The fixed bracket is connected to the pressing motor 705, and the probe adjustment motor 706 is installed on the fixed bracket. Each group of probe parts includes two probes, one of which is fixed on the fixed bracket, and the other is installed on the probe adjustment motor 706 through a movable bracket. The probe adjustment motor 706 drives the probe to move left and right, so that the distance between the two probes can be adjusted, thereby detecting battery cells of different specifications. There is no need to replace equipment components, and one-click model change is achieved, and the model change speed is relatively fast.

[0067] The bayonet assembly 703 is installed in the middle of the edge detection frame. The bayonet assembly 703 includes multiple bayonet parts, a bayonet adjustment motor 701, and a movable plate. The bayonet adjustment motor 701 is fixed on the edge detection frame, and the movable plate is installed on the guide strip of the edge detection frame. After the height is adjusted, the position is fixed. Each bayonet part includes two bayonets, one of which is fixed on the edge detection frame, and the other is connected to the movable plate through a spring. The bayonet adjustment motor 701 drives the movable plate to move. The bayonet adjustment motor 701 can drive the bayonet to move left and right, so that the distance between the two bayonets can be adjusted, so as to detect batteries of different specifications. There is no need to replace equipment parts, and one-key type change is achieved, and the type change speed is fast.

[0068] On the basis of the above-mentioned specific implementation mode, the ear shaping mechanism 8 includes a shaping frame, a lifting motor 805 and a shaping motor 806 fixed on the shaping frame, a movable frame installed on the horizontal slide rail of the shaping frame and connected to the shaping motor 806, a pressing motor 807 installed on the movable frame, a shaping support plate 804 installed on the vertical slide rail of the shaping frame and driven by the lifting motor 805, and a shaping roller assembly 803 installed on the guide hole of the shaping frame through a bracket and driven by the pressing motor 807. The shaping roller assembly 803 includes multiple groups of shaping rollers, a fixed bracket connected to the pressing motor 807, 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.

[0069] In the above structure, the ear shaping mechanism 8 includes a shaping frame, a lifting motor 805, a shaping motor 806, a movable frame, a pressing motor 807, a shaping pallet 804, and a shaping roller assembly 803. The shaping motor 806 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 806, and the shaping motor 806 can drive the movable frame to move forward and backward, so that the components installed on the movable frame can move forward and backward.

[0070] The lifting motor 805 is fixed to the lower end of the shaping frame, the block of the shaping support plate 804 is installed in the vertical slide rail of the shaping frame, the lifting motor 805 is connected to the shaping support plate 804, and the lifting motor 805 can drive the shaping support plate 804 to move up and down.

[0071] The downward pressure motor 807 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 803 is installed at the guide hole through a bracket. The downward pressure motor 807 is connected to the shaping roller assembly 803. The downward pressure motor 807 can drive the shaping roller assembly 803 to move up and down along the guide hole.

[0072] At the same time, the shaping roller assembly 803 includes multiple groups of shaping rollers, a fixed bracket, and a shaping adjustment motor. The fixed bracket is connected to the downward pressure motor 807, and the shaping adjustment motor is installed on the fixed bracket. The downward pressure motor 807 drives the fixed bracket and the components installed on the fixed bracket to move up and down.

[0073] 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, its position is fixed. The other is installed on a shaping adjustment motor through a movable bracket. The shaping adjustment motor can drive the roller to move left and right, so that the distance between the two rollers can be adjusted, so as to detect battery cells of different specifications. There is no need to replace equipment parts, and one-click change of shape can be achieved with a faster change of shape.

[0074] It should be noted that the battery cell body temperature testing mechanism includes a lifting cylinder 801, a mounting frame, and a thermometer 802. The lifting cylinder 801 is installed in the mounting hole of the shaping frame, the mounting frame is connected to the bottom of the lifting cylinder 801, and the thermometer 802 is installed on the mounting frame. The lifting cylinder 801 can drive the thermometer 802 to move up and down, adjust the position of the thermometer 802, and improve the accuracy of temperature measurement.

[0075] It should be noted that the battery cell body temperature testing mechanism and the tab shaping mechanism 8 can share one 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 9 and simplifies the structure.

[0076] For the fully automatic voltage internal resistance testing system in each of the above-mentioned embodiments, the battery cell voltage internal resistance testing mechanism 13 includes a test frame, a second adjustment motor 1303 fixed on the test frame, a mounting base installed on the test frame guide rail and driven by the second adjustment motor 1303, a lifting motor 1301 and a downward pressure cylinder 1306 installed on the mounting base, a test tray 1304 installed in the guide hole of the mounting base and driven by the lifting motor 1301, and a test probe assembly 1305 installed in the guide hole of the mounting base and driven by the downward pressure cylinder 1306. The test probe assembly 1305 includes a fixed frame connected to the downward pressure cylinder 1306, a first adjustment motor 1302 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 adjustment motor 1302 through a movable frame.

[0077] In the above structure, the battery cell voltage internal resistance testing mechanism 13 includes a test frame, a second adjusting motor 1303, a mounting seat, a lifting motor 1301, a downward pressure cylinder 1306, a test tray 1304, and a test probe assembly 1305. The second adjusting motor 1303 is fixed on the test frame, the mounting seat is installed on the test frame guide rail, the mounting seat is connected to the second adjusting motor 1303, and the second adjusting motor 1303 can drive the mounting seat to move.

[0078] The lifting motor 1301 is installed on the mounting seat, the test pallet 1304 is installed at the guide hole of the mounting seat, the test pallet 1304 is connected to the lifting motor 1301, and the lifting motor 1301 can drive the test pallet 1304 to move up and down.

[0079] The downward pressure cylinder 1306 is installed on the mounting seat, the test probe assembly 1305 is installed at the guide hole of the mounting seat, the test probe assembly 1305 is connected to the downward pressure cylinder 1306, and the downward pressure cylinder 1306 can drive the test probe assembly 1305 to move up and down. Specifically, the test probe assembly 1305 includes a fixed frame, a first adjustment motor 1302 and multiple groups of probes, the fixed frame is connected to the downward pressure cylinder 1306, the first adjustment motor 1302 and multiple groups of probes are installed on the fixed frame, and the downward pressure cylinder 1306 can drive the fixed frame and various components on the fixed frame to move.

[0080] At the same time, each set of probes includes two probe bodies, one of which is fixed on the fixed frame and fixed in position after the height of the probe body is adjusted, and the other is installed on the first adjustment motor 1302 through the movable frame. The first adjustment motor 1302 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.

[0081] In another more reliable embodiment, the code scanning mechanism 18 includes a code scanning frame 1801, an adjustment frame, a code scanning gun 1804 and a telescopic cylinder 1803. The end surface of the code scanning frame 1801 has a guide rail. The adjustment frame is installed on the code scanning guide rail 1802 of the code scanning frame 1801, and the adjustment frame can move along the code scanning guide rail 1802. The code scanning gun 1804 is installed on the adjustment frame, and the adjustment frame can adjust the position of the code scanning gun 1804 up and down, left and right, front and back. The telescopic cylinder 1803 is installed on the code scanning frame 1801, 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 1804 to have two positions, thereby switching the position of the code scanning gun 1804 so that the code scanning gun 1804 can accurately scan the code.

[0082] It should be noted that the code scanning mechanism 18 and the battery cell voltage internal resistance test mechanism 13 share a working position. The code scanning frame 1801 of the code scanning mechanism 18 is installed on the test frame, which reduces the number of working positions of the turntable mechanism 9 and simplifies the structure.

[0083] The fully automatic voltage internal resistance test system provided by the present invention, when other components remain unchanged, the turntable mechanism 9 includes a turntable body, a drive motor, and a suction cup fixture 902. 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 a rotary joint 901 to avoid wire entanglement. 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. 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 902 is arranged on the turntable body, and each working position has two suction cup fixtures 902. Each suction cup fixture 902 absorbs a battery cell, and the two battery cells are tested in turn.

[0084] For the fully automatic voltage internal resistance test system in each of the above embodiments, the NG collection box 12 includes an upper material box 1203, a lower material box 1202, a telescopic cylinder 1201, an inner rack, an outer rack and a gear. The NG collection box 12 is a double-layer material box. The bottom of the upper material box 1203 has an inner rack, and the bottom of the lower material box 1202 has an outer rack. The telescopic cylinder 1201 is fixed under the outer rack to drive the outer rack to reciprocate. The gear is located between the outer rack and the inner rack, and the gear is meshed with both the inner rack and the outer rack. The telescopic cylinder 1201 drives the lower material box 1202 to reciprocate, and drives the upper material box 1203 to reciprocate in the opposite direction through a transmission combination in which the gear is meshed with the inner rack and the outer rack, thereby switching the positions of the upper material box 1203 and the lower material box 1202. NG products are placed in the double-layer material box, so that the equipment can be taken out without stopping, thereby improving work efficiency.

[0085] On the basis of the above specific implementation, the unloading sorting robot 10 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 10 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 10 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 10 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.

[0086] 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.

[0087] 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 loading platform (1) for placing a loading stacking tray, an advance and retreat work platform (5) capable of moving the position of a battery cell, a turntable mechanism (9) having a plurality of work positions for testing, and a unloading conveyor belt (11) for unloading; and further comprising: A loading, sorting and visual positioning monitoring robot (4) is used to grab the battery cells on the loading platform (1) and perform visual positioning and detection on them, and to place qualified battery cells on the advance and retreat work platform (5) and place NG products in corresponding material boxes; A side voltage testing mechanism (7) located at the rear end of the advancing and retreating working platform (5) is used to perform a side voltage test on the battery cells pushed forward by the advancing and retreating working platform (5); An upper turntable transfer robot (6) is used to transfer the battery cells that have passed the test of the side voltage test mechanism (7) to the turntable mechanism (9); The tab shaping mechanism (8), the battery body temperature testing mechanism, the code scanning mechanism (18) and the battery cell voltage internal resistance testing mechanism (13) arranged at each working position of the turntable mechanism (9) are used to perform tab shaping, battery body temperature testing, code scanning and battery cell voltage internal resistance testing respectively. The tab shaping mechanism (8) comprises a shaping frame, a lifting motor (805) and a shaping motor (806) fixed on the shaping frame, a movable frame installed on the transverse slide rail of the shaping frame and connected to the shaping motor (806), and a pressing motor (807) installed on the movable frame. ), a shaping support plate (804) mounted on the vertical slide rail of the shaping machine frame and driven by the lifting motor (805), a shaping roller assembly (803) mounted on the guide hole of the shaping machine frame through a bracket and driven by the pressing motor (807), the shaping roller assembly (803) comprising a plurality of groups of shaping rollers, a fixed bracket connected to the pressing motor (807), and a shaping adjustment motor mounted on the fixed bracket, each group of shaping rollers comprising two rollers, one of which is fixed on the fixed bracket, and the other is mounted on the shaping adjustment motor through a movable bracket; The battery cell body temperature testing mechanism comprises a lifting cylinder (801) installed in a shaping frame mounting hole, a mounting frame connected to the bottom of the lifting cylinder (801), and a temperature measuring instrument (802) installed on the mounting frame, wherein the battery cell body temperature testing mechanism and the tab shaping mechanism (8) share a working position; The unloading and sorting robot (10) is used to unload the tested battery cells from the turntable mechanism (9) to the unloading conveyor belt (11), and place the NG products in the corresponding NG collection box (12).

2. 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).

3. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The loading platform (1) comprises a loading position for placing loading stacking pallets, an empty pallet position for placing empty pallets, and an empty pallet transporting robot (2) for transferring empty pallets from the loading position to the empty pallet position. A pallet loading and unloading mechanism capable of moving the loading platform (1) up and down is arranged below the loading platform (1).

4. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The advance and retreat work platform (5) comprises an upper slide, a lower slide, an upper fixed layer installed in the upper slide, a liftable layer installed in the lower slide and capable of descending through the lower space of the upper fixed layer, a moving motor for driving the upper fixed layer and the liftable layer to move, and a lifting cylinder for driving the liftable layer to move up and down.

5. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The edge voltage testing mechanism (7) comprises an edge measuring frame, a lifting motor (702) and a pressing motor (705) fixed to the edge measuring frame, an edge measuring support plate installed in a guide hole of the edge measuring frame and driven by the lifting motor (702), an edge measuring probe assembly (704) driven by the pressing motor (705), and a bayonet assembly (703) installed in the middle of the edge measuring frame. The edge measurement probe assembly (704) comprises a plurality of probe members, a fixed bracket connected to the pressing motor (705), and a probe adjustment motor (706) mounted on the fixed bracket, wherein each probe member comprises two probes, one of which is fixed on the fixed bracket and the other is mounted on the probe adjustment motor (706) via a movable bracket; The bayonet assembly (703) comprises a plurality of bayonet members, a bayonet adjustment motor (701) fixed to the edge detection frame, and a movable plate installed on a guide strip of the edge detection frame and moved by the bayonet adjustment motor (701), wherein each bayonet member comprises two bayonets, one of which is fixed to the edge detection frame and the other is connected to the movable plate via a spring.

6. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The cell voltage internal resistance test mechanism (13) comprises a test frame, a second adjustment motor (1303) fixed on the test frame, a mounting seat mounted on the test frame guide rail and driven by the second adjustment motor (1303), a lifting motor (1301) and a downward pressure cylinder (1306) mounted on the mounting seat, a test support plate (1304) mounted on the guide hole of the mounting seat and driven by the lifting motor (1301), and a test probe assembly (1305) mounted on the guide hole of the mounting seat and driven by the downward pressure cylinder (1306), wherein the test probe assembly (1305) comprises a fixing frame connected to the downward pressure cylinder (1306), a first adjustment motor (1302) 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 is mounted on the first adjustment motor (1302) via a movable frame; The code scanning mechanism (18) comprises a code scanning frame (1801), an adjustment frame mounted on the code scanning frame (1801) and capable of moving along a code scanning guide rail (1802), a code scanning gun (1804) mounted on the adjustment frame, and a telescopic cylinder (1803) capable of driving the code scanning gun (1804) to switch positions. The code scanning mechanism (18) and the battery cell voltage internal resistance testing mechanism (13) share a working position.

7. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The turntable mechanism (9) 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 (902) 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 (902).

8. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The NG collection box (12) comprises an upper material box (1203) having an inner rack at the bottom, a lower material box (1202) having an outer rack at the bottom, a telescopic cylinder (1201) fixed below the outer rack for driving the outer rack to reciprocate, and a gear located between the outer rack and the inner rack and meshing with both the inner rack and the outer rack.

9. The fully automatic voltage internal resistance test system according to claim 1, characterized in that: The unloading and sorting robot (10) and the loading and sorting visual positioning monitoring robot (4) grab two battery cells each time, and the unloading and sorting robot (10) 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.

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