A circular battery cover explosion-proof plate welding equipment

Abstract

The present invention relates to the technical field of battery cover manufacturing, and specifically to a circular battery cover explosion-proof disc welding device, comprising: a positioning tool, the positioning tool having a placement groove adapted to the shape of the battery cover, the placement groove having a plurality of vacuum suction holes at the bottom thereof, at least one of which is directly opposite the position of the embedding groove; a transfer device, the transfer device being used to sequentially and cyclically transfer the positioning tool to each workstation; a battery cover feeding device being used to convey the battery cover into the placement groove; an explosion-proof disc feeding device being used to convey the explosion-proof disc onto the battery cover; a welding device being used to weld the explosion-proof disc to the battery cover; and a blanking device being used to transfer the battery cover after welding out of the positioning tool. This device can ensure the accuracy of the positioning of the explosion-proof disc and the battery cover, and improve the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cover plate manufacturing, and in particular to a circular battery cover plate explosion-proof piece welding device. Background Art

[0002] As a critical component of lithium batteries, the battery cover is particularly important in ensuring the quality and safety of lithium battery products. The welding of the explosion-proof disc on the battery cover requires high precision and strict quality control. Traditional welding equipment uses a slot-type positioning method during the welding process, which cannot guarantee the positioning requirements of the circular battery cover, resulting in a low product quality pass rate. Summary of the Invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a circular battery cover explosion-proof plate welding device, which can ensure the accuracy of positioning the explosion-proof plate and the battery cover and improve the welding quality.

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

[0005] A circular battery cover explosion-proof plate welding device is used to weld the explosion-proof plate to the battery cover to form a product. The battery cover is provided with an embedding groove adapted to the explosion-proof plate, and the bottom of the embedding groove is provided with a perforation, comprising: a positioning tool, the positioning tool is provided with a placement groove adapted to the shape of the battery cover, the bottom of the placement groove is provided with a plurality of vacuum suction holes, at least one vacuum suction hole is directly opposite to the position of the embedding groove; a group of workstations, the workstations sequentially including a first loading station, a second loading station, a welding station and a unloading station in a circular array; a transfer device, The transport device is used to circulate and transfer the positioning tooling to each workstation in sequence; the battery cover feeding device located at the first loading station is used to transport the battery cover to the placement slot; the explosion-proof plate feeding device located at the second loading station is used to transport the explosion-proof plate onto the battery cover; the welding device located at the welding station is used to weld the explosion-proof plate to the battery cover; the unloading device located at the unloading station is used to transfer the battery cover after welding out of the positioning tooling.

[0006] Based on the above structure, the working method includes the following steps:

[0007] The battery cover feeding device at the first loading station conveys the battery cover to the placement slot on the positioning fixture, and the vacuum suction hole sucks the battery cover in the placement slot;

[0008] The transfer device drives the positioning fixture to rotate to the second loading station, and the explosion-proof disk feeding device conveys the explosion-proof disk to the battery cover plate, and the vacuum suction hole facing the embedding groove sucks the explosion-proof disk;

[0009] The transfer device drives the positioning tool to rotate to the welding station, and the welding device realizes the welding of the explosion-proof plate and the battery cover to form the product;

[0010] The transfer device drives the positioning fixture to rotate to the unloading station, and the unloading device transfers the welded products out of the positioning fixture.

[0011] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0012] The present invention provides a circular battery cover explosion-proof plate welding device, which can realize automatic loading and welding, and the explosion-proof plate and the battery cover are positioned through vacuum suction holes on the positioning tooling, ensuring the accuracy of the positioning of the explosion-proof plate and the battery cover during the movement of the positioning tooling and the welding process, thereby improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a plan view of a circular battery cover explosion-proof plate welding device in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of a circular battery cover explosion-proof plate welding device in an embodiment of the present application;

[0015] Figure 3 This is a plan view of the battery cover feeding device in an embodiment of the present application;

[0016] Figure 4 Schematic diagram of the three-dimensional structure of the battery cover feeding device in the embodiment of the present application;

[0017] Figure 5 This is a schematic structural diagram of the execution end of the transfer robot in an embodiment of the present application;

[0018] Figure 6 Schematic diagram of the structure of the deviation corrector in the embodiment of the present application;

[0019] Figure 7 Schematic diagram of the structure of the correction seat in the embodiment of the present application;

[0020] Figure 8 1 is a plan view of a bursting disk feeding device in an embodiment of the present application;

[0021] Figure 9 Schematic diagram of the three-dimensional structure of the explosion-proof disk feeding device in the embodiment of the present application;

[0022] Figure 10 This is a schematic structural diagram of the explosion-proof disk feeding robot in an embodiment of the present application;

[0023] Figure 11 Schematic diagram of the structure of the welding device in the embodiment of the present application;

[0024] Figure 12 This is a schematic structural diagram of a product visual inspection device in an embodiment of the present application;

[0025] Figure 13 An exploded view of the components of the product in the embodiment of the present application;

[0026] Figure 14 This is a schematic structural diagram of the positioning tool in an embodiment of the present application;

[0027] Figure 15 Schematic diagram of the structure of the blanking device in the embodiment of the present application;

[0028] Figure 16 Schematic diagram of the structure of the temporary storage compensation device in the embodiment of the present application;

[0029] Figure 17 Schematic diagram of the structure of the feeder in the embodiment of the present application;

[0030] Figure 18 This is a schematic diagram of the installation of the transfer plate and the connecting plate in the embodiment of the present application;

[0031] Figure 19 Schematic diagram of the structure of the tray conveying device in the embodiment of the present application;

[0032] Figure 20 This is a schematic structural diagram of the first conveyor belt disc feeder in an embodiment of the present application;

[0033] Figure 21 Schematic diagram of the structure of the lifting conveyor in the embodiment of the present application;

[0034] Figure 22 Schematic diagram of the structure of the transfer device in the embodiment of the present application;

[0035] Figure 23 Schematic diagram of the structure of the stacking device in the embodiment of the present application;

[0036] Figure 24 This is a schematic structural diagram of the one-way stop in an embodiment of the present application.

[0037] In the picture:

[0038] 1-positioning tool; 11-placement slot; 110-vacuum suction hole;

[0039] 2-Battery cover feeding device; 21-Deflection corrector; 211-Deflection correcting seat; 2110-Deflection correcting storage slot; 2111-Seat body; 2112-Rotating shaft; 2113-Positioning block; 21130-Positioning slope; 2114-Deflection correcting suction cup; 212-Rotation drive; 213-Horizontal plate; 214-Axle sleeve; 22-Transfer manipulator; 221-Conical table; 222-Transfer vacuum suction head; 23-Loading manipulator; 231-Loading mobile module; 232-Loading vacuum suction cup; 24-Transferring mobile device; 25-Deflection correcting visual detection device; 26-Deflection correcting detection mobile module;

[0040] 3-bursting disk feeding device; 31-bursting disk feeding robot; 311-bursting disk suction nozzle; 32-bursting disk visual inspection device; 321-bursting disk inspection camera;

[0041] 4- welding device; 41- welding gun; 42- welding mobile module; 43- welding visual guidance device;

[0042] 5- unloading device; 51- unloading manipulator; 511- unloading nozzle; 52- temporary storage compensation device; 520- temporary storage tank; 521- storage seat; 522- lifting drive; 523- detector; 53- conveyor belt feeder;

[0043] 6-turntable;

[0044] 7-feeder; 71-transfer plate; 710-feeding storage trough; 711-long hole; 72-feeding conveyor belt; 73-connecting plate; 74-baffle; 741-first support rail; 742-second support rail; 75-positioning roller; 76-correction baffle;

[0045] 8-Tray conveying device; 81-First conveyor belt tray feeder; 811-First conveyor belt; 82-Lifting conveyor; 821-Lifting frame; 83-Transfer device; 831-Transfer moving module; 8311-First lateral moving module; 8312-Second lateral moving module; 8313-A pair of longitudinal moving modules; 832-Tray picking device; 833-Material picking device; 84-Stacking device; 841-Second conveyor belt tray feeder; 842-Tray lifting device; 8421-Pushing plate; 843-Tray closing bin; 844-One-way stopper; 8441-Mounting frame; 84411-Protrusion; 8442-Lock tongue; 8443-Adjusting screw; 8444-Limiting block; 85-Clamping block; 851-First clamping block; 852-Second clamping block; 86-Limiting frame; 87-Material separator;

[0046] 9-product; 91-explosion-proof disk; 92-battery cover; 921-groove;

[0047] 93-Product visual inspection device; DETAILED DESCRIPTION

[0048] like Figures 1 to 2 The circular battery cover explosion-proof plate welding equipment shown is used to weld Figure 13 The explosion-proof plate 91 shown is welded to the battery cover 92 to form the product 9. The battery cover 92 is provided with a groove 921 adapted to the explosion-proof plate 91. The bottom of the groove 921 is provided with a perforation, including: Figure 14 The positioning tool 1 shown is provided with a placement groove 11 adapted to the shape of the battery cover, and a plurality of vacuum suction holes 110 are provided at the bottom of the placement groove 11, at least one vacuum suction hole 110 is opposite to the position of the embedding groove 921; a group of workstations, the workstations sequentially include a first loading station, a second loading station, a welding station and a blanking station in a circular array; a transfer device, the transfer device is used to circulate and transfer the positioning tool 1 to each workstation in sequence; a battery cover feeding device 2 located at the first loading station, the battery cover feeding device 2 is used to convey the battery cover 92 to the placement groove 11; the explosion-proof plate feeding device 3 located at the second loading station, the explosion-proof plate feeding device 3 is used to convey the explosion-proof plate 91 to the battery cover 92; the welding device 4 located at the welding station, the welding device 4 is used to weld the explosion-proof plate 91 to the battery cover 92; the blanking device 5 located at the blanking station, the blanking device 5 is used to transfer the battery cover 92 after welding out of the positioning tool 1.

[0049] Based on the above structure, its working method includes the following steps: the battery cover feeding device 2 on the first loading station transports the battery cover 92 to the placement groove 11 on the positioning tool 1, and the vacuum suction hole 110 sucks the battery cover 92 in the placement groove 11; the transfer device drives the positioning tool 1 to rotate to the second loading station, and the explosion-proof piece feeding device 3 transports the explosion-proof piece 91 to the battery cover 92, and the vacuum suction hole 110 facing the embedding groove 921 sucks the explosion-proof piece 91; the transfer device drives the positioning tool 1 to rotate to the welding station, and the welding device 4 realizes the welding of the explosion-proof piece 91 and the battery cover 92 to form a product 9; the transfer device drives the positioning tool 1 to rotate to the unloading station, and the unloading device 5 transfers the welded product 9 out of the positioning tool 1.

[0050] Therefore, a circular battery cover explosion-proof plate welding device in this embodiment can realize automatic loading and welding, and the explosion-proof plate 91 and the battery cover plate 92 are positioned on the positioning tool 1 through the vacuum suction hole 110, ensuring the accuracy of the positioning of the explosion-proof plate 91 and the battery cover plate 92 during the movement of the positioning tool 1 and the welding process, thereby improving the welding quality.

[0051] In this embodiment, the transfer device includes a rotatably driven turntable 6, with a plurality of positioning fixtures 1 mounted in a circular array on the turntable 6. One group of workstations is arranged around the center of rotation of the turntable 6, and another group of workstations is located radially outward from the turntable 6. The number of positioning fixtures 1 corresponds one-to-one with the number of workstations. Multiple groups of placement slots 11 are arranged on the positioning fixtures 1, and the second loading station and / or welding station correspond one-to-one with the number of groups of placement slots 11. In this embodiment, two groups of placement slots 11 are provided, each group having two placement slots 11, correspondingly, one pair is provided for each of the second loading station and the welding station.

[0052] Based on the above-mentioned device, the devices of each station can work at the same time. After the execution of the devices of each station is completed, the turntable 6 rotates one beat, and each positioning tool 1 is transferred to the next station, which can improve production efficiency. If four placement slots 11 are set on the same positioning tool 1, and only one second loading station and welding station are set, then in order to improve efficiency, a suction nozzle and a detection camera corresponding to each placement slot 11 need to be set on the second loading station. Under the premise that the installation space of the suction nozzle and the detection camera is certain, the intervals between each placement slot 11 will be too large, resulting in the positioning tool 1 being too large in size. At the same time, the positioning accuracy requirements are also increased, resulting in high manufacturing difficulty and high cost. Therefore, based on the above-mentioned structure, the compactness of the positioning tool 1 can be improved while ensuring the number of placement slots 11 on the positioning tool 1, reducing manufacturing difficulty and saving manufacturing costs.

[0053] Combine Figures 8 to 10 As shown in the figure, in this embodiment, the explosion-proof disc feeding device 3 includes:

[0054] The explosion-proof disk feeding robot 31, the execution end of the explosion-proof disk feeding robot 31 is provided with an explosion-proof disk suction nozzle 311 corresponding one-to-one with a group of placement slots 11, and the opening of the explosion-proof disk suction nozzle 311 faces downward; the explosion-proof disk visual detection device 32, the explosion-proof disk visual detection device 32 includes an explosion-proof disk detection camera 321 corresponding one-to-one with a group of explosion-proof disk suction nozzles 311, and the explosion-proof disk visual detection device 32 is provided with two groups, one group of explosion-proof disk visual detection devices 32 is located outside the turntable 6 and the lens of the explosion-proof disk detection camera 321 faces upward; the other group of explosion-proof disk visual detection devices 32 is located above the positioning tool 1 facing the second loading station and the lens of the explosion-proof disk detection camera 321 faces downward facing a group of placement slots 11.

[0055] The bursting disc feeding robot 31 first moves the bursting disc suction nozzle 311 to the material picking position. After the bursting disc suction nozzle 311 sucks the bursting disc 91 and completes the picking, the bursting disc feeding robot 31 transfers the bursting disc 91 to the top of a set of bursting disc visual inspection devices 32 with upward-facing lenses to inspect the quality of the lower end surface of the bursting disc 91. The bursting disc 91 is then transferred to the embedded groove 921 of the battery cover 92 placed in a set of placement slots 11. After the bursting disc suction nozzle 311 is removed, a set of bursting disc visual inspection devices 32 above the positioning tool 1 inspect the quality of the upper end surface of the bursting disc 91. If the inspection quality is unqualified, the bursting disc feeding robot 31 drives the bursting disc suction nozzle 311 to shave off the unqualified bursting disc 91 until all the bursting discs 91 corresponding to the set of placement slots 11 are placed on the battery cover 92, and the turntable 6 rotates one beat. The quality of the upper and lower surfaces of the bursting disc 91 can be inspected to ensure its quality before welding. Furthermore, during the inspection process, the bursting disc suction nozzle 311 does not need to lower the bursting disc 91 midway. This reduces labor time and improves inspection efficiency compared to conventional methods that require placing the material at a dedicated inspection station. In this embodiment, each welding station welds a group of bursting discs 91 corresponding to the placement slots 11. The welding device 4 utilizes a mobile module to drive a mobile welding machine.

[0056] Combine Figure 11 As shown, in this embodiment, the welding device 4 includes a welding gun 41, a welding movable module 42 and a welding visual guide device 43. The welding visual guide device 43 is used to locate the center position of the explosion-proof plate 91 to determine the actual welding trajectory, and the welding movable module 42 is used to drive the welding gun 41 to move according to the welding trajectory to complete the welding action.

[0057] The above device can ensure welding accuracy and improve product quality. It plays a role in rough positioning of the battery cover 92 and the explosion-proof plate 91 on the positioning fixture 1 during circumferential deviation correction. Otherwise, it will increase the difficulty of positioning the welding visual guide device 43, and excessive deviation of each welding trajectory will also produce a large cumulative error.

[0058] In this embodiment, the workstation also includes a detection station located between the welding station and the blanking station, and also includes a detection station located at the detection station. Figure 12 The product visual inspection device 93 shown is used to inspect the quality of the product 9 .

[0059] Conventional product transfer devices often transfer products one by one and check product quality before transfer. Therefore, each time a product is transferred, it is either removed or placed in a qualified product storage location. In order to improve transfer efficiency, a group of products can be transferred each time. However, when some unqualified products appear in a group of products, the removal of unqualified products will cause a vacancy in the qualified product storage location. The next transfer needs to compensate for the vacancy first, and after compensating for the vacancy, new vacancy will be generated, which will make the control system complex and unstable. In this regard, combined with Figures 15 and 16 As shown, in this embodiment, the unloading device 5 includes: an unloading manipulator 51, which is provided with an unloading nozzle 511 corresponding to the product 9 in the positioning fixture 1; a temporary storage compensation device 52, which includes a group of storage seats 521, each of which is provided with a temporary storage slot 520 adapted to the product 9. The number of storage seats 521 is one less than the number of placement slots 11 on each positioning fixture 1. It also includes Figure 17 The feeder 7 shown in the figure has a transfer plate 71 on its moving component, and the transfer plate 71 is provided with a feed receiving groove 710 corresponding to each unloading suction nozzle 511, and the feed receiving groove 710 is used to receive the product 9.

[0060] Based on the above device, before unloading, the product visual inspection device 93 detects the quality of the product 9 in the positioning fixture 1. During unloading, the unloading robot 51 moves the unloading nozzle 511. The unloading nozzle 511 is used to pick up and place the product 9, so as to place the qualified product in the feeding storage slot 710 and transport it through the feeder 7, and remove the unqualified products. Specifically, a conveyor belt feeder 53 is set on one side of the unloading robot 51 to receive and transport unqualified products. When the number of unqualified products is greater than 1 and less than the number of placement slots 11 on each positioning fixture 1, the temporary storage storage slot 520 on the storage seat 521 will not be filled and there will be vacancies, which will affect the subsequent product discharge. In order to solve this problem, a temporary storage compensation device 52 is set. The method of use is as follows: before the unloading robot 51 places qualified products each time, if the number of qualified products is greater than 1 and less than the number of placement slots 11 on each positioning fixture 1, the number a of qualified products 9 and the number b of empty temporary storage slots 520 on a group of storage seats 521 are calculated. If a≤b, the qualified products on the unloading robot 51 are transferred to the empty temporary storage slots 520. If a>b, the qualified products are transferred from the temporary storage slots 520 storing qualified products to the feeding storage slots 710 so that the feeding storage slots 710 on the transfer plate 71 are filled with qualified products. This ensures that the feeding storage slots 710 on the transfer plate 71 are either completely empty or filled with products after one unloading. After being filled with products, the feeder 7 transports the transfer plate 71 away. Based on the above device, it can be ensured that the material delivery storage trough 710 in the transfer plate 71 will not be partially empty each time it is transferred (either completely full or completely empty), thereby improving the transfer efficiency and stability at the same time.

[0061] In this embodiment, the feeder 7 includes a feed conveyor belt 72, a transfer plate 71 is arranged on the feed conveyor belt 72, and a group of transfer plates 71 are arranged along the circumferential extension direction of the belt body of the feed conveyor belt 72; baffles 74 are provided on both sides of the feed conveyor belt 72, and first support rails 741 are provided on the upper ends of the baffles 74. During the conveying process, the first support rails 741 are used to support the two sides of the bottom of the transfer plate 71. The transfer plate 71 moves to the two ends of the conveying direction of the feed conveyor belt 72 for loading and unloading respectively. During this process, the feed conveyor belt 72 is used to transmit power to the transfer plate 71, and the first support rails 741 are used to ensure the stability of the movement of the transfer plate 71. After unloading, the empty transfer plate 71 flips to the bottom of the feed conveyor belt 72 and is transported in a reverse cycle to the front end.

[0062] In this embodiment, a pair of second support rails 742 are further provided on both sides of the feed conveyor belt 72. The second support rails 742 are disposed below the feed conveyor belt 72. When the transfer plate 71 is flipped over to the bottom of the feed conveyor belt 72, the second support rails 742 are used to support both sides of the transfer plate 71 to bear the weight of the transfer plate 71 and prevent the transfer plate 71 from falling and damaging the feed conveyor belt 72. Specifically, the second support rails 742 are connected to the baffle plate 74.

[0063] In this embodiment, baffles 74 are equipped with stoppers, which are arranged in pairs on either side of the feed conveyor belt 72. The spacing between the two stoppers is adapted to the width of the transfer plate 71. The stoppers include a set of aligned positioning rollers 75. The positioning of the positioning rollers 75 corresponds to the position of the transfer plate 71 waiting for loading and unloading in the conveyor 7's conveying direction. Based on this arrangement, the transfer plate 71 moves between the positioning rollers 75, located at the upper limit of the width direction, to ensure the position accuracy of the transfer plate 71 in the width direction during loading and unloading. The position of the transfer plate 71 in the conveying direction can be detected by a position sensor to achieve positioning.

[0064] In this embodiment, the limiting member includes a correcting baffle 76, which is arranged in the middle section of the conveying direction of the feeder 7. The correcting baffle 76 is used to correct the lateral deviation of the feed conveyor belt 72 during the conveying process.

[0065] Combine Figure 18 As shown, in this embodiment, a set of connecting plates 73 are mounted on the belt body of the feed conveyor belt 72, and the transfer plate 71 is mounted on the connecting plates 73. The transfer plate 71 is provided with an elongated hole 711 extending in the width direction. The transfer plate 71 and the connecting plates 73 are connected by bolts passing through the elongated holes 711. In this embodiment, the feed conveyor belt 72 and the transfer plate 71 are connected by the connecting plates 73 to facilitate the adjustment of the width direction position of the transfer plate 71 along the elongated holes 711.

[0066] Combine Figure 16As shown, in this embodiment, the temporary storage compensation device 52 includes a lifting driver 522, which corresponds one-to-one with the storage seat 521. The lifting driver 522 is used to drive the storage seat 521 to move longitudinally to switch between the transfer position and the reset position, and the transfer position is higher than the reset position. During the process of transferring products between the unloading robot 51 and the temporary storage compensation device 52, the unloading nozzle 511 and the storage seat 521 that are not involved in the transfer need to be longitudinally spaced to avoid interference. If the lifting driver 522 drives the unloading nozzle 511 to move, the lifting driver 522 needs to be installed on the unloading robot 51, which will increase the load on the execution end of the unloading robot 51 and cause a decrease in positioning accuracy. In this embodiment, when transferring products between the unloading robot 51 and the temporary storage compensation device 52, the storage seat 521 to be transferred is moved to the transfer position by the lifting drive 522, and the remaining storage seats 521 are in the reset position. In addition, only one storage seat 521 is moved to the transfer position each time the unloading robot 51 moves the corresponding unloading nozzle 511 to the top of the storage seat 521 to be transferred to transfer the product. Therefore, interference can be avoided during the transfer process and the positioning accuracy of the unloading robot 51 is not affected. Specifically, the lifting drive 522 is a cylinder connected to the bottom of the storage seat 521. Specifically, the temporary storage compensation device 52 includes a detector 523, which is arranged on the storage seat 521. The detector 523 is used to detect whether there is a product 9 placed on the storage seat 521. Specifically, the detector 523 is a photoelectric sensor, which is arranged at the bottom of the temporary storage tank 520.

[0067] Combine Figures 3 to 7As shown, in this embodiment, the battery cover feeding device 2 includes: a corrector 21, the corrector 21 includes a group of correcting seats 211 and a rotary driver 212 corresponding to the correcting seats 211, the correcting seat 211 is provided with a correcting storage groove 2110 adapted to the battery cover 92, and the correcting storage groove 2110 is provided with a correcting suction cup 2114 at the bottom, and the correcting suction cup 2114 is used to adsorb the battery cover 92 placed in the correcting storage groove 2110; the rotary driver 212 is transmission-connected to the correcting seat 211; a material transfer moving device 24, the corrector 21 is arranged on a movable component of the material transfer moving device 24, and the material transfer moving device 24 is used to transport the corrector 21 to switch between the transfer-in position, the detection position and the transfer-out position; the corresponding transfer-in position is provided with a transfer-in Manipulator 22, when the material transfer and moving device 24 transfers the corrector 21 to the transfer-in position, the transfer-in manipulator 22 is used to transfer the battery cover 92 from the feeding device to the correction storage slot 2110; the corresponding detection position is provided with a correction visual detection device 25, and when the material transfer and moving device 24 transfers the corrector 21 to the detection position, the material transfer and moving device 24 is used to detect the circumferential position deviation of the battery cover 92. According to the circumferential position deviation of the battery cover 92, the rotary driver 212 drives the correction seat 211 to rotate until the circumferential position of the battery cover 92 is at a preset position; loading manipulator 23, when the material transfer and moving device 24 transfers the corrector 21 to the transfer-out position, the loading manipulator 23 is used to transfer the battery cover 92 from the corrector 21 to the positioning tool 1.

[0068] Traditional positioning fixtures can be equipped with slots that adapt to the outer contour of the material to ensure the material's positioning posture. However, if the outer contour of the material is a rotationally symmetrical structure, such as a circular material, the slots cannot guarantee the material's circumferential positioning. Therefore, an angle corrector is required to correct the material's circumferential position. Existing angle correctors place the material on a turntable, detect the material's angular deviation, and then the turntable drives the material to rotate. However, when the material is light and the contact surface with the turntable is smooth, the synchronization of the material and the turntable cannot be guaranteed.

[0069] Based on the above device, after the battery cover 92 enters the correction storage groove 2110, the correction suction cup welding device 4 placed at the bottom of the correction storage groove 2110 sucks the battery cover 92 to ensure the synchronization of the rotation of the battery cover 92 and the correction seat 211.

[0070] In this embodiment, the corrector 21 also includes a mounting frame connected to the movable component of the material transfer and moving device 24, and the rotary driver 212 is installed on the mounting frame. The mounting frame includes a horizontal plate 213. A group of vertical shaft sleeves 214 are installed on the horizontal plate 213. The correcting seat 211 includes a seat body 2111 and a rotating shaft 2112 arranged at the bottom of the seat body 2111. The seat body 2111 is arranged at the upper end of the shaft sleeve 214, and the rotating shaft 2112 is rotatably arranged in the shaft sleeve 214. The rotating shaft 2112 is passed through the horizontal plate 213 and is transmission-connected to the rotary driver 212. A diversion cavity is provided in the seat body 2111, and the rotating shaft 2112 is a tubular body. The tubular cavity of the rotating shaft 2112 is connected to the diversion cavity. A group of positioning blocks 2113 are installed at the upper end of the seat body 2111, and the positioning blocks 2113 are connected to the diversion cavity.

[0071] Bushing 214 is used to limit the axial and radial position of the correction seat 211. In one embodiment, a bearing can be provided between bushing 214 and correction seat 211 to reduce friction during rotation. In this embodiment, a feeding device is used to transport the battery cover 92 to the retrieving position of the transfer manipulator 22. The feeding device is the same as the feeder 7.

[0072] In this embodiment, a positioning block 2113 is installed on the base body 2111, and the correction receiving groove 2110 is arranged at the upper end of the positioning block 2113. The opening edge positioning block 2113 corresponding to the upper end of the correction receiving groove 2110 is provided with a circumferentially extending positioning slope 21130, and the radial dimension of the positioning slope 21130 decreases from top to bottom; the execution end of the transfer manipulator 22 is provided with a transfer vacuum suction head 222 and a conical platform 221 adapted to the positioning slope 21130, the transfer vacuum suction head 222 is penetrated on the conical platform 221, and the front end of the transfer vacuum suction head 222 extends out of the lower end surface of the conical platform 221.

[0073] Among them, the vacuum suction head 222 is used to pick up and place the battery cover 92. During the process of transferring the battery cover 92 between the manipulator 22 and the corrector 21, the execution end of the manipulator 22 moves to the conical table 221 and engages with the positioning slope 21130, and then the vacuum suction head 222 puts down the battery cover 92, thereby ensuring the stability of the transfer of the battery cover 92.

[0074] In this embodiment, the deflection corrector 21 and the material transfer mobile device 24 are arranged in pairs, and also include a pair of deflection correction detection mobile modules 26. The deflection correction visual detection device 25 is installed on the mobile component of the deflection correction detection mobile module 26. The deflection correction detection mobile module 26 is used to drive the deflection correction visual detection device 25 to move to switch between the detection positions corresponding to the pair of deflection correctors 21; the loading robot 23 includes a loading mobile module 231 and a loading vacuum suction cup 232 installed on the mobile component of the loading mobile module 231. The loading vacuum suction cup 232 is used to pick up and place the battery cover 92. The loading mobile module 231 is used to drive the loading vacuum suction cup 232 to move.

[0075] Based on the above device, when one deviation corrector 21 reaches the detection position to detect and adjust the circumferential position, the other deviation corrector 21 can be moved to the out-position and in-position to perform loading operations and transfer operations of the battery cover 92. A pair of deviation correctors 21 operate alternately, which can improve the loading efficiency of the battery cover 92 while saving costs.

[0076] In this embodiment, the number of the correcting seats 211, the number of the transferred vacuum suction heads 222, and the number of the loading vacuum suction cups 232 in each corrector 21 are the same as the number of the placement slots 11 in each positioning fixture 1 and the positions correspond one to one. The correcting detection moving module 26 is a linear moving module. A pair of correcting detection moving modules 26 are arranged horizontally perpendicular to the moving direction. The loading moving module 231 includes a horizontal moving module and a vertical moving module installed on the moving component of the horizontal moving module. The loading vacuum suction cup 232 is installed on the moving component of the vertical moving module. The horizontal moving module is used to move the loading vacuum suction cup 232 to switch between its transfer position of each corrector 21 and the loading position above the positioning fixture 1. The vertical moving module is used to move the loading vacuum suction cup 232 in the vertical direction to transfer the battery cover 92 to a suitable height.

[0077] The tray transfer device is used to centrally transfer materials on the tray to achieve tray loading or separate the materials from the tray. The main function of the tray transfer device is to continuously convey and recycle the tray, and the material transfer process is completed by an external robot at the intermediate workstation. It is manifested in that the robot for picking up and placing materials and the robot for picking up and placing trays are moved by their own independent moving devices. This leads to a low degree of integration of the tray transfer device, which affects the equipment cost.

[0078] Combined with this Figures 19 to 24 As shown, in this embodiment, a tray conveying device 8 is further included, and the tray conveying device 8 includes:

[0079] The first conveyor belt tray feeder 81 is used to transport the tray horizontally from the outside to the inside; the lifting conveyor 82, the lifting conveyor 82 is arranged at the end of the input direction of the first conveyor belt tray feeder 81, and the lifting conveyor 82 is used to transport the tray transported to the end by the first conveyor belt tray feeder 81 upward; the transfer device 83, the transfer device 83 includes a transfer movement module 831, a tray picking device 832 and a material picking device 833, the tray picking device 832 and the material picking device 833 are installed on the moving component of the transfer movement module 831, the transfer movement module 831 is used to transfer the material picking device 833 to switch between its end position where the tray is transported by the lifting conveyor 82 and the material transfer position, so as to transfer the material out of or into the tray through the material picking device 833; the transfer movement module 831 is used to transfer The material tray picking device 832 switches between its terminal position for conveying the material tray on the lifting conveyor 82 and the material tray transfer position, so as to transfer the material tray to the material tray transfer position through the material tray picking device 832; the stacking device 84 includes a second conveyor belt tray feeder 841, a top tray device 842 and a closing tray bin 843, the material tray transfer position corresponds to the input end of the second conveyor belt tray feeder 841, the top tray device 842 is arranged below the output end of the second conveyor belt tray feeder 841, the top tray device 842 includes a lifting and moving push plate 8421, the push plate 8421 is used to push the material tray on the output end of the second conveyor belt tray feeder 841 upward into the closing tray bin 843, and a one-way stopper 844 is provided at the lower opening position of the closing tray bin 843, and the one-way stopper 844 is used to support the material tray entering the closing tray bin 843;

[0080] In this embodiment, the tray conveyor 8 is used to convey the battery cover 92 to the battery cover feeding device 2 or to receive the product 9 output by the unloading device 5. Specifically, the battery cover 92 or product 9 is transferred between the tray conveyor 8 and the battery cover feeding device 2, and between the unloading device 5 and the tray conveyor 8 via the feeder 7.

[0081] Based on the above device, its usage method is that the material tray enters from the first conveyor belt tray feeder 81 and is transported horizontally to the end, and then transported upward by the lifting conveyor 82, and the transfer moving module 831 drives the material picking device 833. After the material transfer is realized through the material picking device 833, the transfer moving module 831 drives the material tray picking device 832 to transport the material tray that has completed the material transfer to the material tray transfer position, that is, the input end of the second conveyor belt tray feeder 841. The second conveyor belt tray feeder 841 transports the material tray to the top of the top tray device 842, and the top tray device 842 pushes the material tray upward into the closing bin 843. The one-way stopper 844 is used to support the material tray. After the cycle operation, the material trays will be stacked in the closing bin 843 to facilitate centralized discharge of the material trays. In this embodiment, the tray pick-up device 832 and the material pick-up device 833 are integrated into the same second conveyor tray feeder 841, offering the advantages of high integration and adaptability to both discharge scenarios (loading materials into trays) and infeed scenarios (separating materials from trays and conveying them to a predetermined location). Both the tray pick-up device 832 and the material pick-up device 833 utilize vacuum suction cups for pick-and-place operations. The tray collection bin 843 includes four longitudinally extending right-angled limit plates corresponding to the four corners of the trays.

[0082] In this embodiment, the first conveyor belt feeder 81 includes a pair of first conveyor belts 811 arranged at intervals in the width direction, and the lifting conveyor 82 includes a lifting frame 821 that is arranged to move up and down, and the lifting frame 821 is arranged between the pair of first conveyor belts 811; a material plate positioning device is provided at the end position corresponding to the upward movement of the lifting frame 821, and the material plate positioning device includes a group of clamping blocks 85 corresponding to the edge of the material plate, and the clamping blocks 85 are driven by a horizontal driving device to clamp the edge of the material plate to achieve positioning of the material plate, so as to ensure the accuracy of the positioning of the material plate by the transfer device 83.

[0083] In this embodiment, the sheet positioning device further includes a limiting frame 86, a set of clamping blocks 85 including a first clamping block 851 disposed opposite the limiting frame 86, and a pair of second clamping blocks 852 disposed opposite each other in a direction perpendicular to the movement of the first clamping block 851. The limiting frame 86 and the first clamping block 851 are used to clamp a pair of opposite sides of the sheet, and the pair of second clamping blocks 852 are used to clamp the other pair of opposite sides of the sheet.

[0084] This embodiment also includes a material spacing and limiting device, which includes a material spacing and limiting device that is driven up and down by a driver. When resetting, the material spacing plate 87 is set below the conveyor belt corresponding to the first conveyor belt tray feeder 81 and / or the second conveyor belt tray feeder 841. During operation, the material spacing plate 87 moves to extend above the upper end of the conveyor belt to block the material tray, preventing the rear material tray from entering the position of the front material tray during the lifting process, causing interference when the lifting conveyor 82 or the lifting tray device 842 is reset downward. Based on the above device, the first conveyor belt tray feeder 81 and the second conveyor belt tray feeder 841 do not need to stop driving the conveyor belt, which has the advantage of simpler control compared to stopping the conveyor belt during each lifting process.

[0085] In this embodiment, the transfer and moving module 831 includes a first transverse moving module 8311, a second transverse moving module 8312, and a pair of longitudinal moving modules 8313. The moving direction of the first transverse moving module 8311 is parallel to the moving direction of the second conveyor belt tray feeder 841. The second transverse moving module 8312 is mounted on the moving component of the first transverse moving module 8311, and the moving direction of the second transverse moving module 8312 is perpendicular to the moving direction of the first transverse moving module 8311. The pair of longitudinal moving modules 8313 are mounted on the moving component of the second transverse moving module 8312. The tray picking device 832 and the material picking device 833 are respectively disposed on the moving components of the pair of longitudinal moving modules 8313 and are spaced apart in the moving direction of the first transverse moving module 8311. The above device has the advantage of a compact structure.

[0086] Combine Figure 24 As shown, in this embodiment, the one-way stopper 844 includes a mounting bracket 8441 disposed at the bottom of the closing bin 843, a locking tongue 8442 rotatably mounted on the mounting bracket 8441, and a pair of blocking blocks for respectively blocking the locking tongue 8442 from rotating in both the forward and reverse directions. An adjusting screw 8443 is threadedly connected to the locking tongue 8442, the screw head of the adjusting screw 8443 being exposed at the end surface of the locking tongue 8442. When the locking tongue 8442 rotates toward the feed opening of the closing bin 843, the adjusting screw 8443 contacts the corresponding blocking block to limit further rotation of the locking tongue 8442. The blocking block prevents the locking tongue 8442 from rotating excessively, and the adjusting screw 8443 is used to adjust the rotational travel of the locking tongue 8442 toward the feed opening of the closing bin 843. The blocking block includes a protrusion 84411 integrally disposed on the mounting bracket 8441 and a separate limiting block 8444 disposed at the lower end of the mounting bracket 8441.

[0087] The technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A circular battery cover explosion-proof plate welding equipment, characterized in that: A product (9) is formed by welding an explosion-proof plate (91) to a battery cover (92), wherein the battery cover (92) is provided with an embedding groove (921) adapted to the explosion-proof plate (91), and a perforation is provided at the bottom of the embedding groove (921), comprising: A positioning tool (1), wherein the positioning tool (1) is provided with a placement groove (11) adapted to the shape of the battery cover, a plurality of vacuum suction holes (110) are provided at the bottom of the placement groove (11), and at least one vacuum suction hole (110) is located directly opposite the embedding groove (921); A group of workstations, the workstations sequentially including a first loading station, a second loading station, a welding station and an unloading station in a circumferential array; A transfer device, the transfer device is used to transfer the positioning tool (1) to each work station in a circular manner; A battery cover plate feeding device (2) located at the first loading station, the battery cover plate feeding device (2) being used to convey the battery cover plate (92) to the placement slot (11); A bursting disc feeding device (3) located at the second loading station, the bursting disc feeding device (3) being used to convey the bursting disc (91) onto the battery cover (92); A welding device (4) located at a welding station, the welding device (4) being used to weld the explosion-proof disk (91) to the battery cover (92); A blanking device (5) located at the blanking station, the blanking device (5) is used to transfer the battery cover plate (92) after welding out of the positioning tool (1); The battery cover feeding device (2) comprises: A deflection corrector (21), the deflection corrector (21) comprising a set of deflection correcting seats (211) and a rotary driver (212) corresponding to the deflection correcting seats (211), the deflection correcting seats (211) being provided with a deflection correcting receiving groove (2110) adapted to the battery cover (92), the deflection correcting receiving groove (2110) being provided with a deflection correcting suction cup (2114) at the bottom thereof, the deflection correcting suction cup (2114) being used for adsorbing the battery cover (92) placed in the deflection correcting receiving groove (2110); The rotary driver (212) is in transmission connection with the deviation-correcting seat (211); A material transfer moving device (24), wherein the deflection corrector (21) is arranged on a movable component of the material transfer moving device (24), and the material transfer moving device (24) is used to transfer the deflection corrector (21) to switch between a transfer-in position, a detection position, and a transfer-out position; A transfer-in manipulator (22) is provided at the corresponding transfer-in position, and the transfer-in manipulator (22) is used to transfer the battery cover (92) into the deviation-correcting storage slot (2110); A deviation correction visual detection device (25) is provided at the corresponding detection position. A loading manipulator (23), the loading manipulator (23) is used to transfer the battery cover (92) from the deviation corrector (21) to the positioning tool (1); The deflection corrector (21) further comprises a mounting frame connected to a movable component of the material transfer device (24); the rotary driver (212) is mounted on the mounting frame; the mounting frame comprises a transverse plate (213); a group of vertical shaft sleeves (214) are mounted on the transverse plate (213); the deflection corrector (211) comprises a seat body (2111) and a rotating shaft (2112) arranged at the bottom of the seat body (2111); the seat body (2111) is arranged on the shaft sleeve (214); ) upper end, a rotating shaft (2112) is rotatably arranged in a shaft sleeve (214), the rotating shaft (2112) is passed through the horizontal plate (213), the rotating shaft (2112) is transmission-connected to the rotary driver (212), a diversion cavity is provided in the seat body (2111), the rotating shaft (2112) is in the form of a tube, the tube cavity of the rotating shaft (2112) is in communication with the diversion cavity, a group of positioning blocks (2113) are installed at the upper end of the seat body (2111), and the positioning blocks (2113) are in communication with the diversion cavity; A positioning block (2113) is installed on the seat body (2111), and the deviation-correcting receiving groove (2110) is arranged at the upper end of the positioning block (2113). A circumferentially extending positioning slope (21130) is provided on the positioning block (2113) corresponding to the opening edge of the upper end of the deviation-correcting receiving groove (2110), and the radial dimension of the positioning slope (21130) decreases from top to bottom. A transfer vacuum suction head (222) and a conical platform (221) adapted to the positioning slope (21130) are provided on the execution end of the transfer robot (22); the transfer vacuum suction head (222) is passed through the conical platform (221), and the front end of the transfer vacuum suction head (222) extends out of the lower end surface of the conical platform (221).

2. The circular battery cover explosion-proof plate welding equipment according to claim 1, characterized in that: The transfer device comprises a rotatably driven turntable (6), a plurality of the positioning fixtures (1) are mounted on the turntable (6) in a circular array, a group of workstations are arranged around the rotation center circumference of the turntable (6), and a group of workstations are located radially outside the turntable (6), and the number of the positioning fixtures (1) corresponds to the number of workstations. On the positioning fixture (1), the placement slots (11) are arranged in a plurality of groups on the positioning fixture (1), and the second loading station and / or welding station corresponds to the number of groups of the placement slots (11) arranged in a one-to-one manner.

3. The circular battery cover explosion-proof plate welding equipment according to claim 2, characterized in that: The explosion-proof disk feeding device (3) comprises: A bursting disc feeding manipulator (31), wherein the execution end of the bursting disc feeding manipulator (31) is provided with bursting disc suction nozzles (311) corresponding one to one with a set of placement slots (11), and the opening of the bursting disc suction nozzles (311) faces downward; The bursting disc visual detection device (32) includes a bursting disc detection camera (321) corresponding to a group of bursting disc suction nozzles (311). The bursting disc visual detection device (32) is provided with two groups, one of which is located outside the turntable (6) and the lens of the bursting disc detection camera (321) faces upward; the other group of bursting disc visual detection devices (32) is located above the positioning tool (1) facing the second loading station and the lens of the bursting disc detection camera (321) faces downward and faces a group of placement slots (11).

4. The circular battery cover explosion-proof plate welding equipment according to claim 2, characterized in that: The welding device (4) comprises a welding gun (41), a welding movable module (42) and a welding visual guide device (43). The welding visual guide device (43) is used to locate the center position of the explosion-proof plate (91) to determine the actual welding trajectory. The welding movable module (42) is used to drive the welding gun (41) to move according to the welding trajectory to complete the welding action.

5. The circular battery cover explosion-proof plate welding equipment according to claim 2, characterized in that: It also includes a product visual inspection device (93), which is used to inspect the quality of the product (9); The blanking device (5) comprises: A blanking manipulator (51), wherein the blanking manipulator (51) is provided with blanking suction nozzles (511) corresponding one-to-one to the products (9) in the positioning tool (1); A temporary storage compensation device (52), the temporary storage compensation device (52) comprising a set of storage seats (521), the storage seats (521) being provided with temporary storage slots (520) adapted to the products (9), the number of the storage seats (521) being one less than the number of the placement slots (11) on each positioning fixture (1); The invention also includes a feeder (7), wherein a transfer plate (71) is provided on a moving assembly of the feeder (7), and a feed receiving groove (710) corresponding to each unloading suction nozzle (511) is provided on the transfer plate (71), and the feed receiving groove (710) is used to receive the product (9).

6. The circular battery cover explosion-proof plate welding equipment according to claim 1, characterized in that: The deflection corrector (21) and the material transfer moving device (24) are arranged in pairs, and further include a pair of deflection correcting detection moving modules (26). The deflection correcting visual detection device (25) is installed on a moving component of the deflection correcting detection moving module (26). The deflection correcting detection moving module (26) is used to drive the deflection correcting visual detection device (25) to move so as to switch between detection positions corresponding to the pair of deflection correctors (21). The loading manipulator (23) comprises a loading moving module (231) and a loading vacuum suction cup (232) mounted on a moving component of the loading moving module (231). The loading vacuum suction cup (232) is used to pick up and place the battery cover (92), and the loading moving module (231) is used to drive the loading vacuum suction cup (232) to move.

7. The circular battery cover explosion-proof plate welding equipment according to claim 1, characterized in that: It also includes a tray conveying device (8), which includes: A first conveyor belt tray feeder (81) is used to transport the tray horizontally from the outside to the inside; A lifting conveyor (82), the lifting conveyor (82) is arranged at the end of the input direction of the first conveyor belt disc feeder (81), and the lifting conveyor (82) is used to transport the material disc delivered to the end by the first conveyor belt disc feeder (81) upward; The transfer device (83) includes a transfer moving module (831), a tray picking device (832) and a material picking device (833). The tray picking device (832) and the material picking device (833) are installed on the moving component of the transfer moving module (831). The transfer moving module (831) is used to transfer the material picking device (833) to switch between its end position for conveying the tray on the lifting conveyor (82) and the material transfer position, so that the tray can be transferred out or transferred in by the material picking device (833). The transfer moving module (831) is used to transfer the tray picking device (832) to switch between its end position for conveying the tray on the lifting conveyor (82) and the material transfer position, so that the tray can be transferred to the tray transfer position by the tray picking device (832). The stacking device (84) includes a second conveyor belt tray feeder (841), a tray pusher device (842) and a tray closing bin (843), wherein the tray transfer position corresponds to the input end of the second conveyor belt tray feeder (841), the tray pusher device (842) is arranged below the output end of the second conveyor belt tray feeder (841), the tray pusher device (842) includes a lifting and moving pusher plate (8421), the pusher plate (8421) is used to push the tray on the output end of the second conveyor belt tray feeder (841) upward into the tray closing bin (843), and a one-way stopper (844) is provided at the lower opening position of the tray closing bin (843), and the one-way stopper (844) is used to support the tray entering the tray closing bin (843); The tray conveying device (8) is used to convey the battery cover plate (92) to the battery cover plate feeding device (2) or to receive the product output by the unloading device (5).

Images