Automatic ultrasonic welding device for storage battery cover plate

Abstract

The utility model discloses an ultrasonic automatic welding device for a storage battery cover plate, and aims to overcome the defects of low automation degree and low welding efficiency in the welding process of the battery cover plate in the prior art. The technical problem is solved through the following technical scheme that the device comprises a station rotating disc, wherein a plurality of bearing blocks are distributed on the station rotating disc; a workpiece feeding device, a cover piece feeding device and an ultrasonic welding device are sequentially arranged in the rotating direction of the station rotating disc. The cover piece feeding device comprises a cover plate material barrel, a discharging push plate arranged at the bottom of the cover plate material barrel and a feeding suction cup correspondingly arranged above the bearing block. A cover plate trough matched with the cover plate is formed in the discharging push plate, and a first pushing device is arranged at the end, away from the bearing block, of the discharging push plate; a first vertical lifting device is arranged on the top of the feeding suction cup. A discharging device is further arranged, and the welded storage battery is taken down from the station rotating disc.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cover welding, and more specifically, to an ultrasonic automatic welding device for a battery cover. Background Art

[0002] Currently, after the charging and discharging process of power lead-acid batteries is completed, the injection hole for injecting electrolyte needs to be sealed with a rubber safety valve. In order to ensure the opening and closing valve pressure of the safety valve, the process requires a plastic cover to block the safety valve between the upper part of the injection hole and the cover. In this way, it is necessary to use ultrasonic welding to seal the cover and the battery cover.

[0003] The current common production method is to manually place the upper sheet on the position where the battery cover needs to be welded, and then send it to the ultrasonic station for welding. This process requires an operator to be responsible for placing the cover sheet, and the production welding efficiency is low. Utility Model Content

[0004] The utility model overcomes the shortcomings of low automation and low welding efficiency in the prior art during the welding of battery covers, and provides an ultrasonic automatic welding device for battery covers, which can realize automatic welding of covers and has the characteristics of high automation and high welding efficiency.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an ultrasonic automatic welding device for battery cover sheets, comprising: a work station turntable, on which a plurality of supporting blocks are distributed; along the rotation direction of the work station turntable, a workpiece loading device, a cover sheet loading device and an ultrasonic welding device are sequentially arranged; the cover sheet loading device comprises a cover sheet barrel, a discharge push plate arranged at the bottom of the cover sheet barrel and a corresponding loading suction cup arranged above the supporting block; a cover sheet trough adapted to the cover sheet is provided on the discharge push plate, and a first pushing device is provided at the end of the discharge push plate away from the supporting block; a first vertical lifting device is provided on the top of the loading suction cup; and a unloading device is also provided to remove the welded battery from the work station turntable.

[0006] After the battery is welded, the station turntable continues to rotate, and when the welded battery moves to the unloading device, the unloading device removes the welded battery from the supporting block. Through the above steps, the battery cover can be fully automatically welded, thereby improving the welding efficiency of the cover and further improving the production efficiency of the battery.

[0007] Preferably, the workpiece loading device includes a grabbing assembly and a feeding conveyor belt; the grabbing assembly is installed above the workstation turntable, and the grabbing assembly transfers the battery from the feeding conveyor belt to the carrying block.

[0008] When the battery to be welded is moved to a position close to the loading block station via the feeding conveyor belt, the grabbing assembly grabs the battery from the feeding conveyor belt and then moves it to the loading block station, thereby realizing automatic loading.

[0009] Preferably, the unloading device includes a gripper assembly and an unloading conveyor belt. The gripper assembly is installed above the workstation turntable and transfers the welded battery from the carrier block to the unloading conveyor belt. When the welded battery moves to the unloading carrier block station, the gripper assembly transfers the welded battery from the unloading carrier block station to the unloading conveyor belt. The unloading conveyor belt transports the welded battery to the next processing station, thereby automatically unloading the welded battery.

[0010] Preferably, the material grabbing assembly includes a horizontal material grabbing device, a vertical material grabbing device and a material picking suction cup. The vertical material grabbing device is arranged at the output end of the horizontal material grabbing device, and the material picking suction cup is arranged at the output end of the vertical material grabbing device.

[0011] Taking the workpiece loading device as an example, the battery to be welded is moved to the end of the feeding conveyor belt, and then the horizontal grabbing device moves so that the picking suction cup is located above the battery to be welded, and then the vertical grabbing device moves downward, so that the picking suction cup contacts the battery to be welded and sucks the battery to be welded tightly, and then the vertical grabbing device drives the picking suction cup upward, so that the picking suction cup drives the battery to move upward, and after the picking suction cup moves upward for a distance, the horizontal grabbing device contracts, so that the picking suction cup moves to the top of the loading support block station, and then the vertical grabbing device drives the picking suction cup downward to place the battery to be welded on the loading support block station, completing the battery loading process.

[0012] Preferably, a resist assembly is provided on the feeding conveyor belt, which includes a resist cylinder and a limit sensor; the resist cylinder is arranged on both sides of the feeding conveyor belt; after the battery passes the limit sensor, the telescopic rod of the resist cylinder extends outward to block the subsequent batteries until the previous battery is moved away by the grabbing assembly, and the telescopic rod of the resist cylinder retracts inward.

[0013] A blocking assembly is provided on the feeding conveyor belt, which enables the batteries to be welded to be moved in an orderly manner to the bottom of the grabbing assembly, thereby realizing orderly loading.

[0014] Preferably, the supporting block is provided with a battery slot, which is adapted to the battery. The battery can be placed in the battery slot exactly, so that the battery can stably rotate with the station turntable.

[0015] Preferably, a circumferential track is provided on the bottom of the workstation turntable, and a plurality of support wheels are provided on the bottom of the workstation turntable, which cooperate with the circumferential track. The high-precision intermittent divider can make the workstation turntable rotate a fixed angle each time, thereby realizing orderly rotation of the workstation turntable.

[0016] Preferably, two groups of cover sheet feeding devices and ultrasonic welding devices are provided.

[0017] The two sets of cover sheet feeding devices can cover two batteries at the same time, and the two ultrasonic welding devices can also weld two batteries at the same time, thereby improving welding efficiency and thus improving production efficiency.

[0018] Preferably, the ultrasonic welding device includes a welding head and an ultrasonic lifting device that drives the welding head up and down. When the cover sheet is placed and the battery to be welded is moved to the welding support block station, the ultrasonic lifting device drives the welding head downward, pressing the welding head against the cover sheet to weld the cover sheet and the battery. When the cover sheet is welded, the ultrasonic lifting device drives the welding head upward.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The battery to be welded is placed on the supporting block through the workpiece loading device, and the work station turntable drives the battery to rotate. When the battery to be welded rotates to the cover sheet loading device station; the first pushing device pushes the discharge push plate so that the cover sheet trough moves outward from the bottom of the cover sheet barrel. When the cover sheet trough moves to above the battery to be welded, the first vertical lifting device moves downward so that the loading suction cup sucks up the cover sheet in the cover sheet trough. After the loading suction cup sucks up the cover sheet, the first vertical lifting device moves upward for a distance, and then the first pushing device drives the discharge push plate to reset, and the first vertical lifting device moves downward to press the cover sheet on the loading suction cup into the battery to be welded; then the work station turntable rotates, and when the battery to be welded rotates to the bottom of the ultrasonic welding device, the ultrasonic welding device welds the cover sheet; after the battery is welded, the work station turntable continues to rotate, and when the welded battery moves to the unloading device, the unloading device removes the welded battery from the supporting block. Through the above steps, the battery cover can be fully automatically welded, thereby improving the welding efficiency of the cover and further improving the production efficiency of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the main view of the present utility model.

[0022] Figure 2 This is a diagram of the workstation turntable of the utility model and its related structure in the circumferential direction.

[0023] Figure 3 yes Figure 1 A partial enlarged view.

[0024] In the figure: 1, rack, 11, mounting frame;

[0025] 2. Workstation turntable, 21. High-precision intermittent divider, 22. Circular track, 23. Support wheel, 24. Carrying block, 241. Battery slot, 25. Loading carrier block station, 26. Cover plate carrier block station, 27. Welding carrier block station, 28. Unloading carrier block station;

[0026] 3. Feeding conveyor belt, 31. Retaining cylinder, 32. Telescopic rod;

[0027] 4. Cover sheet loading device, 41. Cover sheet barrel, 42. Discharge push plate, 421. Cover sheet trough, 43. Loading suction cup, 44. First pushing device, 45. First vertical lifting device;

[0028] 5. Ultrasonic welding device, 51. Welding head, 52. Ultrasonic lifting device;

[0029] 6. Unloading conveyor belt;

[0030] 7. Material grabbing assembly, 71. Material grabbing horizontal device, 72. Material grabbing vertical device, 73. Material taking suction cup;

[0031] 8. Grinding disc. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0033] Example 1: Reference Figures 1 to 3 As shown, an ultrasonic automatic welding device for battery cover sheets comprises: a work station turntable 2, on which a plurality of supporting blocks 24 are distributed; along the rotation direction of the work station turntable 2, a workpiece loading device, a cover sheet loading device 4 and an ultrasonic welding device 5 are sequentially arranged; the cover sheet loading device 4 comprises a cover sheet barrel 41, a discharge push plate 42 arranged at the bottom of the cover sheet barrel 41 and a loading suction cup 43 correspondingly arranged above the supporting block 24; a cover sheet trough 421 adapted for the cover sheet is provided on the discharge push plate 42, and a first pushing device 44 is provided at the end of the discharge push plate 42 away from the supporting block 24; a first vertical lifting device 45 is provided on the top of the loading suction cup 43; and a discharge device is also provided to remove the welded battery from the work station turntable 2.

[0034] The battery to be welded is placed on the supporting block 24 through the workpiece loading device, and the station turntable 2 drives the battery to rotate. When the battery to be welded is rotated to the cover sheet loading device 4 station; the first pushing device 44 pushes the discharge pushing plate 42, so that the cover sheet trough 421 moves outward from the bottom of the cover sheet barrel 41. When the cover sheet trough 421 moves to the top of the battery to be welded, the first vertical lifting device 45 moves downward, so that the loading suction cup 43 sucks up the cover sheet in the cover sheet trough 421. After the loading suction cup 43 sucks up the cover sheet, the first vertical lifting device 45 moves downward. The vertical lifting device 45 moves upward for a distance, after which the first pushing device 44 drives the discharge push plate 42 to reset. The first vertical lifting device 45 moves downward, pressing the cover sheet on the loading suction cup 43 into the battery to be welded. The workstation turntable 2 then rotates, and when the battery to be welded rotates to the bottom of the ultrasonic welding device 5, the ultrasonic welding device 5 welds the cover sheet. After the battery is welded, the workstation turntable 2 continues to rotate, and when the welded battery moves to the unloading device, the unloading device removes the welded battery from the supporting block. Through the above steps, fully automatic welding of battery cover sheets can be achieved, thereby improving the welding efficiency of the cover sheets and thus improving the production efficiency of batteries.

[0035] Example 2: Reference Figures 1 to 3As shown, an ultrasonic automatic welding device for battery cover sheets includes: a frame 1 and a work station turntable 2 that can rotate at intervals. The bottom of the work station turntable 2 is provided with a driving device for driving its rotation and a high-precision intermittent divider 21. The high-precision intermittent divider 21 can make the work station turntable 2 rotate a fixed angle each time, thereby realizing orderly rotation of the work station turntable 2.

[0036] A circumferential track 22 is provided on the circumferential direction of the bottom of the workstation turntable 2, and a plurality of support wheels 23 are provided on the bottom of the workstation turntable 2 to cooperate with the circumferential track 22. The support wheels 23 are provided with wheel grooves adapted to the circumferential track 22. The support wheels 23 cooperate with the circumferential track 22 to support the workstation turntable 2, so that the force on the workstation turntable 2 is more uniform, thereby improving the service life of the workstation turntable 2 and the drive device.

[0037] Several battery-carrying blocks 24 are evenly distributed around the workstation turntable 2. The number of these blocks varies depending on actual needs; in this embodiment, eight blocks are provided. Battery slots 241, which fit snugly within the bottoms of the batteries, are located on the top surfaces of the blocks, ensuring stable rotation of the batteries along with the workstation turntable 2.

[0038] Along the circumference of the workstation turntable 2, the workpiece loading device, cover sheet loading device 4, ultrasonic welding device 5, and unloading device are sequentially arranged, corresponding to the carrier blocks. The workpiece loading device, cover sheet loading device 4, and ultrasonic welding device 5 each correspond to a carrier block station. For clarity and convenience, the carrier block corresponding to the workpiece loading device is referred to as the loading carrier block station 25, the carrier block corresponding to the cover sheet loading device 4 is referred to as the cover sheet carrier block station 26, the carrier block corresponding to the ultrasonic welding device 5 is referred to as the welding carrier block station 27, and the carrier block corresponding to the unloading device is referred to as the unloading carrier block station 28.

[0039] Specifically, the workpiece loading device places the battery with the cover to be welded on the supporting block; a mounting frame 11 is provided on the top of the frame 1, and the mounting frame 11 is located above the workstation turntable 2; the workpiece loading device includes a feeding conveyor belt 3 and a grabbing assembly 7 provided on the mounting frame 11; the battery to be welded is placed on the feeding conveyor belt 3 from the previous process, and when the battery to be welded is moved to a position close to the loading supporting block station 25 through the feeding conveyor belt 3, the grabbing assembly 7 grabs the battery from the feeding conveyor belt 3, and then moves it to the loading supporting block station 25.

[0040] In one embodiment, in order to move the batteries to be welded to the loading block station 25 in an orderly manner, a blocking assembly is provided on the feeding conveyor belt 3, which enables the batteries to be welded to be moved in an orderly manner to the bottom of the grabbing assembly 7, thereby achieving orderly loading.

[0041] The blocking assembly in this embodiment includes blocking cylinders 3131 positioned on either side of the feed conveyor belt 3 and limit sensors that detect battery movement. The blocking cylinders 31 are equipped with telescopic rods 32 that extend and retract to block the battery's movement. The limit sensors, which utilize photoelectric sensors, detect each battery passing through the limit sensors. When a battery passes the limit sensor, the telescopic rods 32 of the blocking cylinders 31 extend outward, blocking the battery behind it until the previous battery is removed by the gripper assembly 7, at which point the telescopic rods 32 of the blocking cylinders 31 retract inward.

[0042] Specifically, the cover sheet loading device 4 includes a cover sheet barrel 41, a discharge push plate 42 provided at the bottom of the cover sheet barrel 41, and a loading suction cup 43 provided above the corresponding support block. The cover sheet barrel 41 is a vertical cylindrical structure with a cross-section that is the same shape as the cover sheet. Several cover sheets are stacked and placed in the cover sheet barrel 41.

[0043] The discharge push plate 42 is provided with a cover plate trough 421 adapted to accommodate the cover plate. A first pusher 44 is provided at the end of the discharge push plate 42 away from the support block. The first pusher 44 is capable of moving the discharge push plate 42. In this application, the first pusher 44 utilizes a pneumatic cylinder, including but not limited to a pneumatic cylinder. A first vertical lifter 45 is provided on top of the loading suction cup 43. The first lifter is capable of moving the loading suction cup 43 vertically. The first lifter utilizes a pneumatic cylinder, including but not limited to a pneumatic cylinder.

[0044] During use, when the battery to be welded rotates to the cover plate supporting block station 26; the first pushing device 44 pushes the discharge push plate 42, so that the cover plate material trough 421 moves outward from the bottom of the cover plate barrel 41, and when the cover plate material trough 421 moves to above the battery to be welded, the first vertical lifting device 45 moves downward, so that the loading suction cup 43 sucks up the cover plate in the cover plate material trough 421, and after the loading suction cup 43 sucks up the cover plate, the first vertical lifting device 45 moves upward for a distance, and then the first pushing device 44 drives the discharge push plate 42 to reset (the cover plate at the bottom of the cover plate barrel 41 falls into the cover plate material trough 421 again, waiting for the next work), and the first vertical lifting device 45 moves downward to press the cover plate on the loading suction cup 43 into the top of the battery to be welded.

[0045] Specifically, the ultrasonic welding device 5 ultrasonically welds the cover sheet and the battery. It includes a welding head 51 and an ultrasonic lifting device 52 that drives the welding head 51 up and down. When the cover sheet is placed and the battery to be welded is moved to the welding support block station 27, the ultrasonic lifting device 52 drives the welding head 51 downward, pressing the welding head 51 against the cover sheet to weld the two together. Once the cover sheet is welded, the ultrasonic lifting device 52 drives the welding head 51 upward.

[0046] Specifically, the unloading device removes the welded battery from the unloading block station 28. The unloading device is similar in structure to the workpiece loading device and includes an unloading conveyor belt 6 and a gripper assembly 7 mounted on the mounting frame 11. When the welded battery moves to the unloading block station 28, the gripper assembly 7 transfers the welded battery from the unloading block station 28 to the unloading conveyor belt 6, which then transports the welded battery to the next processing station.

[0047] The gripper assembly 7 in the unloading device has the same structure as the gripper assembly 7 in the workpiece loading device. It includes a horizontal gripper 71, a vertical gripper 72 at the output of the horizontal gripper 71, and a suction cup 73 at the output of the vertical gripper 72. Both the horizontal gripper 71 and the vertical gripper 72 are cylinder structures. Taking the workpiece loading device as an example, the battery to be welded is transferred to the end of the feeding conveyor belt 3, and then the horizontal grabbing device 71 moves so that the material picking suction cup 73 is located above the battery to be welded, and then the vertical grabbing device 72 moves downward, so that the material picking suction cup 73 contacts the battery to be welded and sucks the battery to be welded tightly, and then the vertical grabbing device 72 drives the material picking suction cup 73 to move upward, so that the material picking suction cup 73 drives the battery to move upward, and after the material picking suction cup 73 moves upward for a distance, the horizontal grabbing device 71 contracts, so that the material picking suction cup 73 moves to above the loading support block station 25, and then the vertical grabbing device 72 drives the material picking suction cup 73 to move downward, and places the battery to be welded on the loading support block station 25, completing the battery loading process.

[0048] The working principle of the present application is as follows: the battery to be welded is placed on the loading support block station 25 through the workpiece loading device, and the station turntable 2 drives the battery to rotate. When the battery to be welded rotates to the cover sheet supporting block station 26; the first pushing device 44 pushes the discharge push plate 42, so that the cover sheet trough 421 moves outward from the bottom of the cover sheet barrel 41. When the cover sheet trough 421 moves to the top of the battery to be welded, the first vertical lifting device 45 moves downward, so that the loading suction cup 43 sucks up the cover sheet in the cover sheet trough 421. After the loading suction cup 43 sucks up the cover sheet, The first vertical lifting device 45 moves upward for a distance, after which the first pushing device 44 drives the discharge push plate 42 to reset. The first vertical lifting device 45 then moves downward, pressing the cover sheet on the loading suction cup 43 onto the top of the battery to be welded. The workstation turntable 2 then rotates, and when the battery to be welded rotates to the welding support block station 27, the ultrasonic welding device 5 welds the cover sheet. After the battery is welded, the workstation turntable 2 continues to rotate, and when the welded battery moves to the unloading support block station 28, the unloading device removes the welded battery from the support block. Through the above steps, fully automatic welding of battery cover sheets can be achieved, thereby improving the welding efficiency of the cover sheets and, in turn, improving the production efficiency of the battery.

[0049] Example 3: This example is similar in structure to Example 2, except that two sets of cover sheet loading devices 4 and ultrasonic welding devices 5 are provided. Of course, different numbers of cover sheet loading devices 4, ultrasonic welding devices 5, workpiece loading devices, and unloading devices can be provided depending on the actual situation, and correspondingly different numbers of supporting blocks 24 can be provided.

[0050] In this embodiment, two groups of cover sheet feeding devices 4 and ultrasonic welding devices 5 are provided. The two groups of cover sheet feeding devices 4 can cover two batteries at the same time, thereby improving the efficiency of covering the covers. At the same time, the two ultrasonic welding devices 5 can also weld two batteries at the same time, thereby improving the welding efficiency, thereby improving the overall production efficiency and reducing the production cost of the enterprise.

[0051] The above-described embodiments are only preferred solutions of the present invention and do not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. An ultrasonic automatic welding device for a battery cover, comprising: A workstation turntable (2) is provided with a plurality of bearing blocks (24); a workpiece loading device, a cover sheet loading device (4) and an ultrasonic welding device (5) are sequentially provided along the rotation direction of the workstation turntable (2); and a unloading device is also provided to remove the welded battery from the workstation turntable (2).

2. The ultrasonic automatic welding device for battery cover according to claim 1, wherein the workpiece The loading device comprises a grabbing assembly (7) and a feeding conveyor belt (3); the grabbing assembly (7) is installed above the workstation turntable (2), and the grabbing assembly (7) transfers the battery from the feeding conveyor belt to the bearing block (24).

3. The ultrasonic automatic welding device for battery cover according to claim 1, characterized in that: The unloading device comprises a grabbing assembly (7) and an unloading conveyor belt. The grabbing assembly (7) is installed above the workstation turntable (2). The grabbing assembly (7) transfers the welded storage battery from the bearing block (24) to the unloading conveyor belt.

4. The ultrasonic automatic welding device for battery cover according to claim 2 or 3, characterized in that: The material grabbing assembly (7) comprises a material grabbing horizontal device (71), a material grabbing vertical device (72) and a material taking suction cup (73), wherein the material grabbing vertical device (72) is arranged at the output end of the material grabbing horizontal device (71), and the material taking suction cup (73) is arranged at the output end of the material grabbing vertical device (72).

5. The ultrasonic automatic welding device for battery cover according to claim 2, characterized in that: A resisting assembly is provided on the feeding conveyor belt, and the resisting assembly includes a resisting cylinder (31) and a limit sensor; the resisting cylinder (31) is provided on both sides of the feeding conveyor belt; after the battery passes the limit sensor, the telescopic rod (32) of the resisting cylinder (31) extends outward to block the subsequent battery until the previous battery is moved away by the grabbing assembly (7), and the telescopic rod (32) of the resisting cylinder (31) retracts inward.

6. The ultrasonic automatic welding device for battery cover according to claim 1, 2, 3 or 5, characterized in that: A battery slot (241) is provided on the bearing block (24), and the battery slot (241) is adapted to the battery.

7. The ultrasonic automatic welding device for battery cover according to claim 1, 2, 3 or 5, characterized in that: A circumferential track (22) is provided in the circumferential direction of the bottom of the workstation turntable (2), and a plurality of supporting wheels (23) are provided at the bottom of the workstation turntable (2), and the supporting wheels (23) cooperate with the circumferential track (22).

8. The ultrasonic automatic welding device for battery cover according to claim 1, characterized in that: Two groups of cover sheet feeding devices (4) and ultrasonic welding devices (5) are provided.

9. The ultrasonic automatic welding device for battery cover according to claim 1, characterized in that: The ultrasonic welding device (5) comprises a welding head (51) and an ultrasonic lifting device (52) for driving the welding head (51) to move up and down.

10. The ultrasonic automatic welding device for battery cover according to claim 1, characterized in that: The cover sheet loading device (4) comprises a cover sheet barrel (41), a discharge push plate (42) arranged at the bottom of the cover sheet barrel (41), and a loading suction cup (43) correspondingly arranged above the supporting block (24); a cover sheet material trough (421) adapted to the cover sheet is arranged on the discharge push plate (42), and a first pushing device (44) is arranged at one end of the discharge push plate (42) away from the supporting block (24); and a first vertical lifting device (45) is arranged on the top of the loading suction cup (43).

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