A device for detecting voltage at the edge of the pole

Abstract

The present invention provides a terminal ear edge voltage detection device, comprising a turntable and a loading and positioning mechanism, a terminal ear shaping mechanism, a CCD photographing mechanism, a first terminal ear punching mechanism, a second terminal ear punching mechanism, an edge voltage detection mechanism, a voltage internal resistance testing mechanism and a material unloading and sorting mechanism which are sequentially installed on the outer periphery of the turntable along the rotating direction of the turntable; the shaping, photographing, terminal ear punching, edge voltage and voltage internal resistance detection processes are integrated on the device, and the battery working station is switched by the turntable, which can save a lot of space and improve work efficiency and processing accuracy.

Description

Technical Field

[0001] The invention relates to the field of battery processing equipment, and in particular to a device for detecting voltage at a cut-off ear. Background Art

[0002] During battery production, the battery tabs need to be punched and various performance tests need to be performed. Before punching and testing, the battery tabs and top sealing edges need to be shaped, otherwise the punching accuracy and test results of the battery will be affected. After shaping and punching, the battery side voltage and voltage internal resistance need to be tested, and finally classified and placed. In the past, these processes were carried out separately, and each process required manual handling, and the battery needed to be repositioned each time, which made the processing difficult, and multiple positioning was prone to deviations, and the processing efficiency was low. With the development of science and technology, automated production lines have appeared in the production of batteries. Most of them are structures of the entire or multiple production lines that connect different workstations by pulling wires. This automated production line is much more accurate and efficient than the manual operation shifting method, but it occupies a large space, is inconvenient to operate and maintain, and its accuracy and efficiency need to be further improved. Summary of the invention

[0003] The object of the present invention is to provide a device for detecting the voltage at the pole edge to solve the problems mentioned in the background technology.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A terminal ear edge voltage detection device comprises a turntable and a feeding positioning mechanism, a terminal ear shaping mechanism, a CCD camera mechanism, a first terminal ear punching mechanism, a second terminal ear punching mechanism, an edge voltage detection mechanism, a voltage internal resistance testing mechanism and a material unloading classification mechanism which are sequentially installed on the outer circumference of the turntable along the rotation direction of the turntable;

[0006] The bottom of the turntable is provided with a divider to drive it to rotate; eight placement seats are evenly distributed and installed on the turntable; and a clamp for clamping the battery is provided on the side of each placement seat;

[0007] The feeding and positioning mechanism has a code scanning detection function and places the battery on the corresponding placement seat for positioning;

[0008] The tab shaping mechanism flattens the tabs and top sealing edges of the battery;

[0009] The CCD camera mechanism takes a picture of the battery's tabs for positioning;

[0010] The first tab punching mechanism and the second tab punching mechanism have the same structure and are used to punch the positive and negative tabs of the battery respectively;

[0011] The side voltage detection mechanism performs side voltage detection on the battery;

[0012] The voltage internal resistance testing mechanism tests the internal resistance and voltage of the battery;

[0013] The unloading and sorting mechanism takes the batteries out of the placement seat and places them in categories.

[0014] Further description of the present invention, the pole lug shaping mechanism includes a first stand, a first Z-axis drive device, a first mounting seat, a pole lug shaping assembly, a top edge sealing and flattening assembly and a first pole lug support assembly; the first pole lug support assembly is mounted on the lower part of the first stand; the first mounting seat can be slidably mounted on the first stand and is located above the first pole lug support assembly; the first Z-axis drive device is mounted above the first stand and the power output end is connected to the first mounting seat to drive the first mounting seat to move up and down; the pole lug shaping assembly is mounted on the first mounting seat, including a scraper arranged above the first pole lug support assembly and a scraper driving cylinder installed on the first mounting seat to drive the scraper to move back and forth; the top edge sealing and flattening assembly includes two first pressure blocks arranged above the scraper and a first pressure block driving cylinder installed on the first mounting seat to drive the two first pressure blocks to move up and down.

[0015] Further describing the present invention, the first pole lug support assembly includes a first seat body, a first support block driving cylinder and a first support block; the first support block driving cylinder is fixed to the first stand through the first seat body; the first support block is installed at the power output end of the first support block driving cylinder; the first support block is used to support the two pole lugs of the battery.

[0016] Further description of the present invention, the first mounting seat includes a back plate slidably connected to the first upright frame, a bottom plate installed at the bottom of the back plate, a top plate installed at the top of the back plate and two side plates installed on the left and right sides of the bottom plate and the top; the pole ear shaping assembly also includes a sliding seat, a connecting member and a first spring; the sliding seat is slidably connected above the bottom plate; the upper surface of the connecting member contacts the bottom surface of the top plate; the middle part of the connecting member is hinged to the sliding seat; the rear part of the connecting member is movably connected to the bottom plate through the first spring; the scraper is installed at the bottom of the front end of the connecting member; the first pressure block driving cylinder is installed above the top plate.

[0017] Further description of the present invention, the first pole ear punching mechanism includes an X-axis drive slide, a second stand, a second Z-axis drive device, a first mounting plate, an upper cutter assembly, a lower cutter assembly and a second guide column; the second stand is installed above the X-axis drive slide; the first mounting plate can be slidably installed on the second stand; the second Z-axis drive device is installed on the stand and the power output end is connected to the first mounting plate; the lower cutter assembly is fixed to the lower part of the first mounting plate; the lower cutter assembly includes a lower cutter seat and a lower cutter; the lower cutter seat is fixed on the second stand; the lower cutter seat has a blanking hole; the lower cutter is fixed on the front side of the blanking hole and the upper end face is flush with the upper end face of the blanking hole; the upper cutter assembly includes an upper cutter drive cylinder, a sliding block, An upper cutter seat, an upper cutter, a second spring, a second pressure block and a limit plate; the sliding block is arranged above the lower cutter assembly and is slidably connected to the first mounting plate; the upper cutter driving cylinder is installed above the first mounting plate and the power output end is fixedly connected to the sliding block; the upper cutter seat is fixed to the bottom of the sliding block; the upper cutter is fixed to the bottom of the upper cutter seat; the second pressure block can be movably installed up and down below the upper cutter seat through the limit plate; the second pressure block is connected to the upper cutter seat through the first guide column; the second pressure block has a knife hole for the upper cutter to pass through; the second spring is sleeved on the upper cutter and the upper end presses on the upper cutter seat and the lower end presses on the second pressure block; the second guide column is fixed on the lower cutter seat and the upper end passes through the sliding block; the second guide column is sleeved with a third spring.

[0018] To further describe the present invention, a vacuum cleaner is installed on one side of the lower cutter seat; the vacuum cleaner is connected to the blanking hole.

[0019] Further description of the present invention, the edge voltage detection mechanism includes a third frame, a second pole lug support assembly, a pressing assembly and a top cutting and edge sealing assembly; the second pole lug support assembly is installed at the lower part of the third frame to support a pole lug of the battery; the second pole lug support assembly includes a second seat body, a second support block and a second support block driving cylinder; the second support block driving cylinder is fixed to the third frame through the second seat body; the second support block is installed at the power output end of the second support block driving cylinder; the pressing assembly includes a third pressing block correspondingly arranged above the second pole lug support assembly and a third pressing block driving device installed on the third frame to drive the third pressing block to move up and down; the top cutting and edge sealing assembly includes a Y-axis pushing assembly, a Z-axis pushing assembly and two groups of cutter assemblies with the same structure; the two groups of the cutter assemblies are arranged between the second pole lug support assembly and the pressing assembly and are symmetrically arranged on the left and right; the Y-axis pushing assembly is installed on the third frame to drive the Z-axis driving assembly to move forward and backward; the Z-axis driving assembly drives the two groups of the cutter assemblies to move up and down.

[0020] Further description of the present invention, the third pressure block driving device includes a third pressure block driving cylinder, a mounting block, a slider, an upper limit block, a fourth spring and a second mounting seat; the third pressure block driving cylinder is fixed above the third stand; the mounting block is fixed to the power output end of the third pressure block driving cylinder; a limiting boss is provided at the bottom of the mounting block; the slider is slidably connected to the mounting block; the second mounting seat is fixed to the front side of the slider; the upper limit block is fixed to the upper end of the mounting block; the upper limit block corresponds to all screws above the second mounting seat; the fourth spring is sleeved on the screws and the upper end presses on the bottom of the upper limit block and the lower end presses on the upper end of the second mounting seat; the third pressure block is fixed to the bottom of the second mounting seat.

[0021] Further description of the present invention, the Y-axis pushing assembly includes a second mounting plate, a mounting frame and a mounting frame driving cylinder; the second mounting plate is horizontally fixed on the rear side of the third vertical frame; the mounting frame can be slidably mounted on the second mounting plate; the mounting frame driving cylinder is mounted on the second mounting plate and the power output end is fixedly connected to the mounting frame; the Z-axis pushing assembly includes a third Z-axis driving device and a movable frame; the movable frame can be slidably mounted on the mounting frame up and down; the third Z-axis driving device is mounted on the mounting frame and the power output end is fixedly connected to the movable frame; two groups of the cutter assemblies are mounted on the movable frame, including an adjustment seat, a knife seat and a cutter; the adjustment seat can be mounted on the movable frame so that the position can be adjusted left and right; the knife seat can be mounted on the adjustment seat so that the position can be adjusted front and back; the cutter is vertically mounted on the knife seat.

[0022] Further description of the present invention, the unloading and sorting mechanism includes an unloading robot, an X-axis linear slide, a handling robot, four groups of NG placement racks and an unloading conveyor belt; a suction plate is installed at the power output end of the X-axis linear slide; the unloading robot is arranged at the right end of the X-axis linear slide, and includes a first frame, a first Y-axis drive device, a first Z-axis drive cylinder and a first suction head; the first Y-axis drive device is installed on the first frame; the first Z-axis drive cylinder is installed at the power output end of the first Y-axis drive device; the first suction head is installed at the power output end of the first Z-axis drive cylinder; one group of the NG placement racks is arranged on the front and rear sides of the right end of the X-axis linear slide; the right end of the unloading conveyor belt and the remaining three groups of NG placement racks are distributed in parallel front and back at the left end of the X-axis linear slide; the handling robot is arranged The left end of the X-axis linear slide includes a second frame, a second Y-axis drive device, a second Z-axis drive cylinder and a second suction head; the second Y-axis drive device is installed on the second frame; the second Z-axis drive cylinder is installed at the power output end of the second Y-axis drive device; the second suction head is installed at the power output end of the second Z-axis drive cylinder; the NG placement rack includes a base frame, a lifting plate, a lifting device and four groups of limit strips; the lifting plate is installed above the base frame through a third guide column; four groups of limit strips are fixed on the base frame and distributed around the lifting plate; the upper end of the limit strip passes through the lifting plate; the lifting device is installed on the base frame to drive the lifting plate to move up and down; the lifting device includes a lifting motor and a screw; the lifting motor is installed at the bottom of the base frame to drive the screw to move up and down; the upper end of the screw is fixedly connected to the lifting plate.

[0023] The beneficial effects of the present invention are:

[0024] The present invention integrates the detection of pole ear shaping, pole ear cutting, side voltage and voltage internal resistance. After the battery is loaded onto the turntable for positioning after code scanning detection, it is clamped and fixed by a clamp. The turntable drives the battery to rotate. The battery first passes through a pole ear shaping mechanism to shape the pole ear and the top sealing edge of the battery to facilitate subsequent processing. Then, the pole ear of the battery is photographed and positioned through a CCD camera mechanism, and the position signal is transmitted to the subsequent mechanism. Only one photographing and positioning is required. Then, one pole ear of the battery is punched through a first pole ear punching mechanism, and then the other pole ear of the battery is punched through a second pole ear punching mechanism. After the punching is completed, the side voltage is detected by a side voltage detection mechanism, and the voltage internal resistance of the battery is tested by a voltage internal resistance testing mechanism. Finally, the batteries are classified and placed through a blanking classification mechanism. The design of the overall structure can improve work efficiency and processing accuracy, and can also save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of a battery of the present invention;

[0026] Figure 2 It is the overall structure diagram of the present invention;

[0027] Figure 3 It is a structural diagram of the rotating disk of the present invention;

[0028] Figure 4 It is a structural diagram of the tab shaping mechanism of the present invention;

[0029] Figure 5 yes Figure 4 A partial enlarged view of middle A;

[0030] Figure 6 is a structural diagram of the first tab punching mechanism of the present invention;

[0031] Figure 7 yes Figure 6 A partial enlarged view of B in the middle;

[0032] Figure 8 is a structural diagram of the upper cutter assembly of the present invention;

[0033] Fig. 9 It is a structural diagram of the edge voltage detection mechanism of the present invention;

[0034] Fig.10 is a structural diagram of the pressing assembly of the present invention;

[0035] Fig.11 It is a structural diagram of the top cutting and edge sealing assembly of the present invention;

[0036] Fig.12 It is a structural diagram of the blanking and sorting mechanism of the present invention;

[0037] Fig.13 It is a structural diagram of the NG placement rack of the present invention. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings:

[0039] like Figure 1 As shown, the front end of the battery 100 has a top sealing edge 102 and two tabs 101 .

[0040] like Figure 2-13 As shown, a device for detecting the edge voltage of a pole ear includes a turntable 1 and a feeding positioning mechanism 2, a pole ear shaping mechanism 3, a CCD camera mechanism 4, a first pole ear punching mechanism 5, a second pole ear punching mechanism 6, an edge voltage detection mechanism 7, a voltage internal resistance testing mechanism 8 and a blanking classification mechanism 9 which are sequentially installed on the outer periphery of the turntable 1 along the rotation direction of the turntable 1;

[0041] The bottom of the turntable 1 has a divider to drive it to rotate; eight placement seats 11 are evenly distributed and installed on the turntable 1; each placement seat 11 is provided with a clamp 12 for clamping the battery on the side, and the clamp 12 includes a clamp plate 121 and a rotating cylinder 122; the rotating cylinder 122 is installed on the turntable 1, and the clamp plate 121 is installed at the power output end of the rotating cylinder 122, and the rotating cylinder 122 drives the clamp plate 121 to rotate and press down on the battery

[0042] The loading and positioning mechanism 2 has a code scanning detection function and places the battery on the corresponding placement seat 11 for positioning; the loading and positioning mechanism 2 includes a loading conveyor belt 21, a loading robot 22 and a fine positioning device 23. The battery is conveyed from the right end of the loading conveyor belt 21 to the left. The left end of the loading conveyor belt 21 has an initial positioning device and the upper end is equipped with a code scanning camera 201. After positioning by the initial positioning device, a code scanning detection is performed. If the code scanning detection is OK, the subsequent steps are normal. The battery is transported to the placement seat 11 by the loading robot 22, and the battery is clamped by the clamp 12 after positioning by the fine positioning device 23 to prepare for subsequent processing. If the code scanning detection is NG, the loading robot 22 transports the battery to the placement seat 11 and clamps it by the clamp 12. The subsequent mechanism does not process the battery, and it is unloaded and classified when it is transported to the unloading classification mechanism 9.

[0043] The tab shaping mechanism 3 flattens the tabs and top sealing edges of the battery, preparing for subsequent mechanisms.

[0044] The tab shaping mechanism 3 includes a first stand 31, a first Z-axis drive device 32, a first mounting seat 33, a tab shaping assembly 34, a top edge flattening assembly 35 and a first tab support assembly 36; the first tab support assembly 36 is installed at the lower part of the first stand 31, and the first tab support assembly 36 includes a first seat body 361, a first support block 363 driving cylinder 362 and a first support block 363; the first support block 363 driving cylinder 362 is fixed to the first stand 31 through the first seat body 361; The first support block 363 is installed at the power output end of the first support block 363 driving cylinder 362; the first support block 363 is used to support the two tabs of the battery; the first mounting seat 33 can be slidably installed on the first stand 31 and is located above the first tab support assembly 36; the first Z-axis drive device 32 is installed above the first stand 31 and the power output end is connected to the first mounting seat 33 to drive the first mounting seat 33 to move up and down; the tab shaping assembly 34 is installed on the first mounting seat 33, including a first tab shaping assembly 34 arranged on the first stand A scraper 341 above a tab support assembly 36 and a scraper driving cylinder 342 mounted on a first mounting seat 33 for driving the scraper 341 to move forward and backward; the top edge flattening assembly 35 includes two first pressing blocks 351 arranged above the scraper 341 and a first pressing block driving cylinder 352 mounted on the first mounting seat 33 for driving the two first pressing blocks 351 to move up and down; the tab shaping mechanism 3 needs to flatten the two tabs and flatten the left and right sides of the top edge. When working, the first support block 363 drives the cylinder 362 The first support block 363 is driven to move upward to support the pole ear and the top sealing edge of the battery, and then the first Z-axis drive device 32 drives the first mounting seat 33 to move downward, so that the scraper 341 is pressed on the pole ear, and then the scraper drive cylinder 342 drives the scraper 341 to move backward to scrape the two pole ears flat, and the first pressing block driving cylinder 352 then drives the two first pressing blocks 351 to move downward, and the two first pressing blocks 351 are pressed on the top sealing edge, thereby shaping the pole ear and the top sealing edge of the battery, and each driving device is reset to prepare for the next processing.

[0045] The first mounting seat 33 includes a back plate 331 slidably connected to the first stand 31, a bottom plate 332 installed at the bottom of the back plate 331, a top plate 333 installed at the top of the back plate 331, and two side plates 334 installed at the bottom plate 332 and the left and right sides of the top; the pole ear shaping assembly 34 also includes a sliding seat 343, a connecting member 344 and a first spring 345; the sliding seat 343 is slidably connected above the bottom plate 332; the upper surface of the connecting member 344 contacts the bottom surface of the top plate 333; the middle part of the connecting member 344 contacts the sliding seat 343 Hinged; the rear part of the connecting member 344 is movably connected to the bottom plate 332 through the first spring 345; the scraper 341 is installed at the bottom of the front end of the connecting member 344; the first pressure block driving cylinder 352 is installed above the top plate 333; the connecting member 344 and the sliding seat 343 are elastically connected. When the scraper 341 contacts the pole ear, the front end of the connecting member 344 moves upward, and the connecting member 344 rotates around the position hinged with the sliding seat 343. The rear side of the connecting member 344 is pressed down and the spring is compressed, thereby preventing the scraper 341 from crushing the pole ear.

[0046] The CCD camera mechanism 4 takes a photo to position the battery's tabs; detects the position and length of the two tabs of the battery. If the length of the tabs is not within the set range, no subsequent processing will be performed, and it is determined that the tab length is NG, and a signal is transmitted to the first tab punching mechanism 5 and the second tab punching mechanism 6. Because the battery's tabs have been shaped and the position of the battery relative to the placement seat 11 remains unchanged, only one photo positioning is required, and no re-positioning is required for subsequent processing.

[0047] The first tab punching mechanism 5 and the second tab punching mechanism 6 have the same structure and are used for punching the positive and negative tabs of the battery respectively. The tabs of the battery are punched at different stations to improve work efficiency. If only one punching mechanism is used to punch two tabs, the work efficiency of the mechanism is low, and the mechanisms at other stations may have to wait for the processing at this station, which will slow down the overall processing.

[0048] The first tab punching mechanism 5 includes an X-axis driving slide 51, a second stand 52, a second Z-axis driving device 53, a first mounting plate 54, an upper cutter assembly 55, a lower cutter assembly 56 and a second guide column 57; the second stand 52 is mounted above the X-axis driving slide 51; the first mounting plate 54 is mounted on the second stand 52 so as to be slidable up and down; the second Z-axis driving device 53 is mounted on the stand and the power output end is drivingly connected to the first mounting plate 54; the lower cutter assembly 56 is fixed to the lower part of the first mounting plate 54; the lower cutter assembly 56 includes a lower cutter seat 561 and a lower cutter 562; the lower cutter seat 561 is fixed to the second stand 52; the lower cutter seat 561 has a blanking hole 5611; The lower cutter 562 is fixed on the front side of the blanking hole 5611 and its upper end surface is flush with the upper end surface of the blanking hole 5611; the upper cutter assembly 55 includes an upper cutter driving cylinder 551, a sliding block 552, an upper cutter seat 553, an upper cutter 554, a second spring 555, a second pressure block 556 and a limiting plate 557; the sliding block 552 is arranged above the lower cutter assembly 56 and is slidably connected to the first mounting plate 54; the upper cutter driving cylinder 551 is installed above the first mounting plate 54 and the power output end is fixedly connected to the sliding block 552; the upper cutter seat 553 is fixed at the bottom of the sliding block 552; the upper cutter 554 is fixed at the bottom of the upper cutter seat 553; the second pressure block 556 can be moved upward through the limiting plate 557 The second pressing block 556 is movably installed below the upper cutter seat 553; the second pressing block 556 is connected to the upper cutter seat 553 through the first guide column 558, the first guide column 558 is fixed on the second pressing block 556 and the upper end is penetrated in the upper cutter seat 553; the second pressing block 556 has a knife hole 5561 for the upper cutter 554 to pass through; the second spring 555 is sleeved on the upper cutter 554 and the upper end is pressed on the upper cutter seat 553 and the lower end is pressed on the second pressing block 556; the second guide column 57 is fixed on the lower cutter seat 561 and the upper end is penetrated through the sliding block 552; the third spring 571 is sleeved on the second guide column 57; according to the battery ear position signal transmitted by the CCD camera mechanism 4, the X-axis driving slide 51 drives the second vertical The frame 52 moves left and right, thereby adjusting the left and right positions of the upper cutter 554 and the lower cutter 562 to match the position of the battery's pole ear. The second Z-axis driving device 53 drives the first mounting plate 54 to move upward, and the positive pole ear is located above the blanking hole 5611 and contacts the lower cutter 562. The upper cutter driving cylinder 551 drives the upper cutter seat 553 to move downward. When the second pressing block 556 contacts the lower cutter seat 561, the second pressing block 556 moves upward to compress the second spring 555, and the upper cutter seat 553 continues to move downward, driving the upper and lower cutters 562 to pass through the knife hole 5561 of the second pressing block 556 to punch the positive pole ear. The punched material falls into the blanking hole 5611, and a vacuum cleaner 58 is installed on one side of the lower cutter seat 561.The vacuum cleaner 58 is connected to the blanking hole 5611, and the waste is sucked out of the blanking hole 5611 by the vacuum cleaner 58 to prevent the waste from clogging; in this design, the sliding block 552 and the lower cutter seat 561 are connected and guided by the second guide column 57, which improves the matching accuracy of the upper cutter 554 and the lower cutter 562, thereby improving the stability and punching accuracy. The second tab punching mechanism 6 is the same as the first tab punching mechanism 5, and is used to punch the negative tab of the battery. ;

[0049] The side voltage detection mechanism 7 performs side voltage detection on the battery;

[0050] The edge voltage detection mechanism 7 includes a third stand 71, a second pole ear support assembly 72, a pressing assembly 73 and a top edge sealing assembly 74; the second pole ear support assembly 72 is installed at the lower part of the third stand 71 to support a pole ear of the battery; the second pole ear support assembly 72 includes a second seat body 721, a second support block 722 and a second support block driving cylinder 723; the second support block driving cylinder 723 is fixed to the third stand 71 through the second seat body 721; the second support block 722 is installed at the power output end of the second support block driving cylinder 723; the pressing assembly 73 includes a corresponding arrangement on the second pole ear support The third pressing block 731 above the assembly 72 and the third pressing block driving device 732 installed on the third stand 71 to drive the third pressing block 731 to move up and down; the top cutting and edge sealing assembly 74 includes a Y-axis pushing assembly 741, a Z-axis pushing assembly 742 and two groups of cutter assemblies 743 with the same structure; the two groups of the cutter assemblies 743 are arranged between the second pole ear support assembly 72 and the pressing assembly 73 and are arranged symmetrically on the left and right; the Y-axis pushing assembly 741 is installed on the third stand 71 to drive the Z-axis driving assembly to move forward and backward; the Z-axis driving assembly drives the two groups of the cutter assemblies 743 to move up and down; the two groups of cutter assemblies 743 have cutters 7433, the two cutters 7433 and the third pressing block 731 control the conduction and disconnection of the circuit through the relay. During processing, the positive ear of the battery is first supported by the second ear support component 72, and the third pressing block driving cylinder 7321 then drives the pressing block to press down on the positive ear. The Y-axis pushing component 741 drives the Z-axis driving component to move forward, so that the cutter 7433 on the cutter component 743 contacts the top sealing edge. The position of the top sealing edge cut by the cutter 7433 corresponds to the position where the top sealing edge flattening component 35 presses the top sealing edge. The cutter component 743 is then driven downward by the Z-axis pushing component 742 to cut the top sealing edge. The relay The two cutters 7433 are controlled to be energized to detect whether the circuit is turned on. If so, the relay controls the cutter 7433 near the positive ear to be powered off, and the third pressure block 731 is controlled to be energized to detect the side voltage of the battery. If the side voltage is within the set range, the side voltage is OK, and if it is not within the range, the side voltage is NG. The battery with side voltage NG will not be processed subsequently. If the detected circuit is not conductive, the top cutting edge sealing component 74 is reset, and the cutting is repeated. After it is turned on, the side voltage is detected again. If three consecutive cuttings are not conductive, it is also judged that the side voltage is NG. The battery will not be processed subsequently, and the material is unloaded and classified through the unloading and classification mechanism 9.

[0051] The third pressure block driving device 732 includes a third pressure block driving cylinder 7321, a mounting block 7322, a slider 7323, an upper limit block 7324, a fourth spring 7325 and a second mounting seat 7326; the third pressure block driving cylinder 7321 is fixed above the third stand 71; the mounting block 7322 is fixed to the power output end of the third pressure block driving cylinder 7321; a limiting boss 7322-1 is provided at the bottom of the mounting block 7322; the slider 7323 is slidably connected to the mounting block 7322; the second mounting seat 7326 is fixed to the front side of the slider 7323; the upper limit block 7324 is fixed to the upper end of the mounting block 7322; the upper limit block 7324 corresponds to all the screws 73 24-1; the fourth spring 7325 is sleeved on the screw 7324-1 and the upper end is pressed on the bottom of the upper limit block 7324, and the lower end is pressed on the upper end of the second mounting seat 7326; the third pressure block 731 is fixed on the bottom of the second mounting seat 7326; the lower limit position of the slider 7323 is limited by the limiting boss 7322-1, and the upper limit position is limited by the upper limit block 7324. In the original state, the slider 7323 is in contact with the limiting boss 7322-1, and the third pressure block drives the cylinder 7321 to drive the mounting block 7322 to move downward. When the third pressure block 731 is in contact with the positive ear of the battery, the second mounting seat 7326 moves upward, the slider 7323 slides upward, and the fourth spring 7325 is compressed, thereby playing a buffering role to prevent the ear from being crushed.

[0052] The Y-axis pushing assembly 741 includes a second mounting plate 7411, a mounting frame 7412 and a mounting frame driving cylinder 7413; the second mounting plate 7411 is horizontally fixed to the rear side of the third stand 71; the mounting frame 7412 can be slidably mounted on the second mounting plate 7411; the mounting frame driving cylinder 7413 is mounted on the second mounting plate 7411 and the power output end is fixedly connected to the mounting frame 7412; the Z-axis pushing assembly 742 includes a third Z-axis driving device 7421 and a movable frame 7422; the movable frame 7422 can be slidably mounted on the mounting frame 7412 up and down; the third Z-axis driving device 7421 is mounted on the mounting frame 7412 and the power output end is fixedly connected to the movable frame 7422; two groups of the cutter assemblies 743 are mounted on the movable frame 7422, including an adjustment seat 743, a knife seat 7432 and a cutter 7433; the adjusting seat 743 can be installed on the movable frame 7422 so as to adjust the position left and right; the knife seat 7432 can be installed on the adjusting seat 743 so as to adjust the position forward and backward; the cutter 7433 is vertically installed on the knife seat 7432; the adjusting seat 743 and the movable frame 7422 are connected by a slide rail pair and locked by screws, and the knife seat 7432 and the adjusting seat 743 are also connected by a slide rail pair and locked by screws. When the position needs to be adjusted, the screws can be loosened to adjust the position. During operation, the mounting frame driving cylinder 7413 drives the mounting frame 7412 to move forward, driving the Z-axis driving assembly to move forward. At this time, the two cutters 7433 are respectively pressed on the top sealing edge of the battery, and the third Z-axis driving device 7421 drives the movable frame 7422 to move downward, and the cutter 7433 cuts the top sealing edge. After cutting, power can be turned on to perform a circuit conduction test.

[0053] The voltage internal resistance testing mechanism 8 tests the internal resistance and voltage of the battery; the voltage is detected by pressing the two pole ears of the battery; the detection results include internal resistance voltage NG and internal resistance voltage OK.

[0054] The unloading and sorting mechanism 9 takes the batteries out of the placement seat 11 and places them in categories.

[0055] The material unloading and sorting mechanism 9 includes a material unloading manipulator 91, an X-axis linear slide 92, a handling manipulator 93, four sets of NG placement racks 94 and a material unloading conveyor belt 95; a suction plate 921 is installed at the power output end of the X-axis linear slide 92; the material unloading manipulator 91 is arranged at the right end of the X-axis linear slide 92, and includes a first frame 911, a first Y-axis driving device 912, a first Z-axis driving cylinder 913 and a first suction head 914; the first Y-axis driving device 912 is installed on the first frame 911; the first Z-axis driving cylinder 913 is installed on the first Y-axis The power output end of the driving device 912; the first suction head 914 is installed at the power output end of the first Z-axis driving cylinder 913; one group of the NG placement racks 94 is arranged on the front and rear sides of the right end of the X-axis linear slide 92, and is designed on the rear side in this design; the right end of the unloading conveyor belt 95 and the other three groups of NG placement racks 94 are arranged in parallel at the front and rear ends of the left end of the X-axis linear slide 92; the handling robot 93 is arranged at the left end of the X-axis linear slide 92, including a second frame 931, a second Y-axis driving device 932, a second Z-axis driving cylinder 933 and a second suction head. The second Y-axis driving device 932 is installed on the second frame 931; the second Z-axis driving cylinder 933 is installed at the power output end of the second Y-axis driving device 932; the second suction head 934 is installed at the power output end of the second Z-axis driving cylinder 933; the NG placement rack 94 includes a base frame 941, a lifting plate 942, a lifting device 943 and four sets of limit strips 944; the lifting plate 942 is installed above the base frame 941 through a third guide column 945; the four sets of limit strips 944 are fixed on the base frame 941 and distributed on the lifting plate 942 is surrounded by the upper end of the limit strip 944 and passes through the lifting plate 942; the lifting device 943 is installed on the base frame 941 to drive the lifting plate 942 to move up and down; the lifting device 943 includes a lifting motor and a screw; the lifting motor is installed at the bottom of the base frame 941 to drive the screw to move up and down; the upper end of the screw is fixedly connected to the lifting plate 942; a photoelectric sensor is installed on the lifting plate 942 to detect the battery, and no battery is put in, which transmits a signal to the second Z-axis driving cylinder 933 to control the lifting plate 942 to descend to a height of the product thickness.

[0056] There are four types of NG, namely, code scanning NG, ear length NG, side voltage NG and voltage internal resistance NG. The four types of NG batteries are placed on four groups of NG placement racks 94 for classification, and OK batteries are sent out through the unloading conveyor belt 95. The right end of the X-axis linear slide 92, the placement seat 11 of the turntable 1 corresponding to the unloading classification mechanism 9 station and the NG placement rack 94 located on the rear side of the right end of the X-axis slide are in the same straight line direction. Therefore, the unloading robot 91 can directly drive the first suction head 914 to move back and forth through the first Y-axis drive device 912, and the first Z-axis drive cylinder 913 controls the first suction head 914 moves up and down to transport the batteries, and places the batteries on the placement seat 11 on the suction plate 921 or the corresponding NG placement rack 94, without the need for X-direction drive. Since the right end needs to take materials from the turntable 1, the remaining three groups of NG placement racks 94 are arranged at the left end of the X-direction linear slide 92, which is beneficial to saving space. The remaining three groups of NG placement racks 94 and the left end of the unloading conveyor belt 95 are arranged front and back in parallel at the left end of the X-direction linear slide 92, so that the handling robot 93 can take out the products on the suction plate 921 and place them on the unloading conveyor belt 95 or the three groups of NG placement racks 94 without the need for X-direction drive.

[0057] The working principle of this embodiment:

[0058] 1) The loading and positioning mechanism 2 scans and detects the battery. If the scan is OK, the battery is transported to the placement seat 11 and positioned by the fine positioning device 23. The battery is clamped by the clamp 12 and prepared for subsequent processing. If the scan is NG, the battery is transported to the placement seat 11 and clamped by the clamp 12, and no subsequent processing is performed.

[0059] 2) The turntable 1 rotates, and the batteries that have passed the code scanning inspection are transported to the tab shaping mechanism 3, which flattens the tabs of the batteries and flattens both sides of the top sealing edge;

[0060] 3) After the turntable 1 rotates and the tab shaping is completed, the battery passes through the CCD camera mechanism 4, which takes a photo of the tab of the battery and detects the position and length of the two tabs of the battery. If the tab length is not within the set range, it is judged that the tab length is NG and no further processing is performed. If the tab length is OK, the tab position signal is transmitted to the first tab punching mechanism 5 and the second tab punching mechanism 6;

[0061] 4) The turntable 1 rotates, and after the battery with a tab length of OK is photographed and positioned, it is transported to the first tab punching mechanism 5. According to the battery tab position signal transmitted by the CCD camera mechanism 4, the X-axis driving slide 51 drives the second stand 52 to move left and right, thereby adjusting the left and right positions of the upper cutter 554 and the lower cutter 562 to match the position of the battery tab. After the position is adjusted, the positive tab punching can be performed;

[0062] 5) The turntable 1 rotates, and after the positive electrode ear is punched, it is transported to the second electrode ear punching mechanism 6 for negative electrode ear punching. The principle of negative electrode ear punching is the same as that of positive electrode ear punching;

[0063] 6) The turntable 1 rotates, and the battery is transported to the edge voltage detection mechanism 7, which detects the edge voltage of the battery. The detection results are divided into edge voltage NG and edge voltage OK. Batteries with edge voltage NG will not be tested later;

[0064] 7) The turntable 1 rotates, and the battery is transported to the voltage internal resistance testing mechanism 8; the test results are also divided into voltage internal resistance NG and voltage internal resistance OK;

[0065] 8) The turntable 1 rotates, and the batteries are transported to the unloading classification mechanism 9. The batteries that are NG in code scanning, NG in tab length, NG in side voltage, and NG in voltage internal resistance are classified and placed on four groups of NG placement racks 94. Batteries that are OK in all processes are placed on the unloading conveyor belt 95 and sent out.

[0066] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for detecting voltage at the edge of a pole, characterized in that: It includes a turntable and a loading positioning mechanism, a tab shaping mechanism, a CCD camera mechanism, a first tab punching mechanism, a second tab punching mechanism, a side voltage detection mechanism, a voltage internal resistance testing mechanism and a material unloading classification mechanism which are sequentially installed on the outer periphery of the turntable along the direction of rotation of the turntable; The bottom of the turntable is provided with a divider to drive it to rotate; eight placement seats are evenly distributed and installed on the turntable; and a clamp for clamping the battery is provided on the side of each placement seat; The feeding and positioning mechanism has a code scanning detection function and places the battery on the corresponding placement seat for positioning; The tab shaping mechanism flattens the tabs and top sealing edges of the battery; the tab shaping mechanism comprises a first stand, a first Z-axis drive device, a first mounting seat, a tab shaping assembly, a top sealing edge flattening assembly and a first tab support assembly; the first tab support assembly is mounted at the lower part of the first stand; the first mounting seat can be slidably mounted on the first stand and is located above the first tab support assembly; The first Z-axis driving device is installed above the first stand and the power output end is connected to the first mounting seat to drive the first mounting seat to move up and down; the tab shaping assembly is installed on the first mounting seat, including a scraper arranged above the first tab support assembly and a scraper driving cylinder installed on the first mounting seat to drive the scraper to move forward and backward; the top edge sealing flattening assembly includes two first pressing blocks arranged above the scraper and a first pressing block driving cylinder installed on the first mounting seat to drive the two first pressing blocks to move up and down; The CCD camera mechanism takes a picture of the battery's tabs for positioning; The first tab punching mechanism and the second tab punching mechanism have the same structure and are used to punch the positive and negative tabs of the battery respectively; The edge voltage detection mechanism performs edge voltage detection on the battery; the edge voltage detection mechanism includes a third stand, a second pole lug support assembly, a pressing assembly and a top cutting and edge sealing assembly; the second pole lug support assembly is installed at the lower part of the third stand to support a pole lug of the battery; the second pole lug support assembly includes a second seat body, a second support block and a second support block driving cylinder; the second support block driving cylinder is fixed to the third stand through the second seat body; the second support block is installed at the power output end of the second support block driving cylinder; the pressing assembly includes a third pressing block correspondingly arranged above the second pole lug support assembly and a third pressing block driving device installed on the third stand to drive the third pressing block to move up and down; the top cutting and edge sealing assembly includes a Y-axis pushing assembly, a Z-axis pushing assembly and two groups of cutter assemblies with the same structure; the two groups of the cutter assemblies are arranged between the second pole lug support assembly and the pressing assembly and are arranged symmetrically on the left and right; the Y-axis pushing assembly is installed on the third stand to drive the Z-axis driving assembly to move forward and backward; the Z-axis driving assembly drives the two groups of the cutter assemblies to move up and down; The voltage internal resistance testing mechanism tests the internal resistance and voltage of the battery; The unloading and sorting mechanism takes the batteries out of the placement seat and places them in categories.

2. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The first pole lug support assembly includes a first seat body, a first support block driving cylinder and a first support block; the first support block driving cylinder is fixed to the first stand through the first seat body; the first support block is installed at the power output end of the first support block driving cylinder; the first support block is used to support the two pole lugs of the battery.

3. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The first mounting seat includes a back plate slidably connected to the first upright frame, a bottom plate installed at the bottom of the back plate, a top plate installed at the top of the back plate, and two side plates installed on the left and right sides of the bottom plate and the top; the pole ear shaping assembly also includes a sliding seat, a connecting piece and a first spring; the sliding seat is slidably connected above the bottom plate; the upper surface of the connecting piece contacts the bottom surface of the top plate; the middle part of the connecting piece is hinged to the sliding seat; the rear part of the connecting piece is movably connected to the bottom plate through the first spring; the scraper is installed at the bottom of the front end of the connecting piece; the first pressure block driving cylinder is installed above the top plate.

4. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The first pole ear punching mechanism includes an X-axis driving slide, a second stand, a second Z-axis driving device, a first mounting plate, an upper cutter assembly, a lower cutter assembly and a second guide column; the second stand is installed above the X-axis driving slide; the first mounting plate can be slidably installed on the second stand; the second Z-axis driving device is installed on the stand and the power output end is connected to the first mounting plate; the lower cutter assembly is fixed to the lower part of the first mounting plate; the lower cutter assembly includes a lower cutter seat and a lower cutter; the lower cutter seat is fixed on the second stand; a blanking hole is provided in the lower cutter seat; the lower cutter is fixed on the front side of the blanking hole and the upper end face is flush with the upper end face of the blanking hole; the upper cutter assembly includes an upper cutter driving cylinder, a sliding block, an upper cutter seat, an upper The cutter, the second spring, the second pressure block and the limit plate; the sliding block is arranged above the lower cutter assembly and is slidably connected with the first mounting plate; the upper cutter driving cylinder is installed above the first mounting plate and the power output end is fixedly connected with the sliding block; the upper cutter seat is fixed at the bottom of the sliding block; the upper cutter is fixed at the bottom of the upper cutter seat; the second pressure block can be movably installed up and down under the upper cutter seat through the limit plate; the second pressure block is connected to the upper cutter seat through the first guide column; the second pressure block has a knife hole for the upper cutter to pass through; the second spring is sleeved on the upper cutter and the upper end presses on the upper cutter seat and the lower end presses on the second pressure block; the second guide column is fixed on the lower cutter seat and the upper end passes through the sliding block; the second guide column is sleeved with a third spring.

5. The device for detecting the voltage at the pole edge according to claim 4, characterized in that: A dust collector is installed on one side of the lower cutter seat; The dust collector is communicated with the material dropping hole.

6. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The third pressure block driving device includes a third pressure block driving cylinder, a mounting block, a slider, an upper limit block, a fourth spring and a second mounting seat; the third pressure block driving cylinder is fixed above the third stand; the mounting block is fixed to the power output end of the third pressure block driving cylinder; a limiting boss is provided at the bottom of the mounting block; the slider is slidably connected to the mounting block; the second mounting seat is fixed to the front side of the slider; the upper limit block is fixed to the upper end of the mounting block; the upper limit block corresponds to all the screws above the second mounting seat; the fourth spring is sleeved on the screws and the upper end presses on the bottom of the upper limit block and the lower end presses on the upper end of the second mounting seat; the third pressure block is fixed to the bottom of the second mounting seat.

7. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The Y-axis pushing assembly includes a second mounting plate, a mounting frame and a mounting frame driving cylinder; the second mounting plate is horizontally fixed on the rear side of the third vertical frame; the mounting frame can be slidably mounted on the second mounting plate; the mounting frame driving cylinder is mounted on the second mounting plate and the power output end is fixedly connected to the mounting frame; the Z-axis pushing assembly includes a third Z-axis driving device and a movable frame; the movable frame can be slidably mounted on the mounting frame up and down; the third Z-axis driving device is mounted on the mounting frame and the power output end is fixedly connected to the movable frame; two groups of the cutter assemblies are mounted on the movable frame, including an adjustment seat, a knife seat and a cutter; the adjustment seat can be mounted on the movable frame so that the position can be adjusted left and right; the knife seat can be mounted on the adjustment seat so that the position can be adjusted front and back; the cutter is vertically mounted on the knife seat.

8. The device for detecting the voltage at the pole edge according to claim 1, characterized in that: The material unloading and sorting mechanism includes a material unloading robot, an X-axis linear slide, a handling robot, four groups of NG placement racks and a material unloading conveyor belt; a suction plate is installed at the power output end of the X-axis linear slide; the material unloading robot is arranged at the right end of the X-axis linear slide, and includes a first frame, a first Y-axis drive device, a first Z-axis drive cylinder and a first suction head; the first Y-axis drive device is installed on the first frame; the first Z-axis drive cylinder is installed at the power output end of the first Y-axis drive device; the first suction head is installed at the power output end of the first Z-axis drive cylinder; one group of the NG placement racks is arranged on the front and rear sides of the right end of the X-axis linear slide; the right end of the material unloading conveyor belt and the remaining three groups of NG placement racks are distributed in parallel front and back at the left end of the X-axis linear slide; the handling robot is arranged on the X-axis linear slide The left end includes a second frame, a second Y-axis drive device, a second Z-axis drive cylinder and a second suction head; the second Y-axis drive device is installed on the second frame; the second Z-axis drive cylinder is installed at the power output end of the second Y-axis drive cylinder; the second suction head is installed at the power output end of the second Z-axis drive cylinder; the NG placement rack includes a base frame, a lifting plate, a lifting device and four groups of limit strips; the lifting plate is installed above the base frame through a third guide column; four groups of limit strips are fixed on the base frame and distributed around the lifting plate; the upper end of the limit strip passes through the lifting plate; the lifting device is installed on the base frame to drive the lifting plate to move up and down; the lifting device includes a lifting motor and a screw; the lifting motor is installed at the bottom of the base frame to drive the screw to move up and down; the upper end of the screw is fixedly connected to the lifting plate.

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