Bottom welding structure of cylindrical lithium battery

Abstract

The utility model provides a bottom welding structure of a cylindrical lithium battery, which relates to the technical field of cylindrical lithium batteries and comprises a workbench, a spot welding mechanism is arranged behind the workbench, a motor is mounted on the bottom surface of the workbench, a first gear is fixedly mounted at the output end of the motor, and a bearing is fixedly embedded in the upper surface of the workbench. And the inner ring of the bearing is fixedly connected with a rotating rod. According to the bottom welding structure of the cylindrical lithium battery, a first gear is driven by an arranged motor to rotate, a second gear, a rotating rod and a rotating table can be driven to rotate, and meanwhile, under the cooperation of a spot welding mechanism and a fixing mechanism, fixed workpieces can be sequentially rotated to the position below the spot welding mechanism for continuous spot welding treatment; by means of the visual sensor and the audible and visual alarm, image analysis can be carried out on a workpiece subjected to spot welding, the spot welding quality of the workpiece is detected, and audible and visual alarm is carried out to prompt workers when the workpiece is unqualified.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bottom welding structure of cylindrical lithium battery belongs to cylindrical lithium battery technical field. BACKGROUND

[0002] Cylindrical lithium battery is a common battery type, its shape is cylindrical, internal structure includes positive pole, negative pole, diaphragm and electrolyte etc. key assembly, cylindrical lithium battery can be divided into lithium iron phosphate, lithium cobaltate, lithium manganate, cobalt manganese mixed and ternary material etc. system according to its positive pole material, and shell is divided into steel shell and polymer two.

[0003] The Chinese patent with the publication number CN213916619U discloses a cylindrical lithium battery stable and compact point bottom welding device, which comprises a connecting bottom plate, one side of the top of the connecting bottom plate is fixedly connected with the bottom of a supporting square column, the top of one side of the supporting square column is fixedly connected with one end of a fixed plate, the middle of one side of the supporting square column is fixedly connected with the bottom of a connecting box, an electric cylinder is fixedly installed on one end of the inner wall of the connecting box, a sliding groove is formed in the bottom of the inner wall of the connecting box, an annular block is slidably connected in the sliding groove, the top of the annular block is fixedly connected with the bottom of a connecting plate, and one end of the connecting plate is fixedly connected with the output end of the electric cylinder, but in the above-mentioned patent, the workpiece needs to be frequently fed and discharged by the worker during work, it is difficult to continuously perform spot welding treatment on multiple workpieces, the flexibility is poor, and after spot welding, it is difficult to detect the quality status of the finished workpiece, thereby reducing the practicability during use, and therefore, the present application provides a bottom welding structure of cylindrical lithium battery to solve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model provides a bottom welding structure of cylindrical lithium battery to solve the above problems, and the specific technical scheme is as follows:

[0005] A bottom welding structure of cylindrical lithium battery, which comprises a workbench, a spot welding mechanism is arranged at the rear of the workbench, a motor is installed on the bottom surface of the workbench, a first gear is fixedly installed on the output end of the motor, a bearing is fixedly embedded on the upper surface of the workbench, a rotating rod is fixedly connected with the inner ring of the bearing, a second gear is fixedly installed on the bottom end of the rotating rod, the second gear is engaged with the first gear, a rotating table is fixedly installed on the top end of the rotating rod, a fixing mechanism is arranged on the upper surface of the rotating table, a carrier plate is installed on one side surface of the workbench, a visual sensor is installed on the inner top wall of the carrier plate, and an audible and visual alarm is installed on the upper surface of the carrier plate.

[0006] Preferably, the spot welding mechanism comprises a support, the front surface of the support is fixedly installed with the back surface of the workbench, an electric push rod is installed on the inner top wall of the support, an installation plate is installed on the telescopic end of the electric push rod, and a spot welder is installed on the bottom surface of the installation plate.

[0007] Preferably, the fixing mechanism includes four sets of upright plates, the bottom surfaces of the four sets of upright plates are fixedly installed on the upper surface of the rotary table, a set of springs are fixedly connected to the side of the four sets of upright plates that are close to each other, and four sets of clamping plates are fixedly connected to the end of the eight sets of springs that are close to each other.

[0008] Preferably, a control panel is installed on the bottom surface of the workbench, and two support legs are fixedly connected to the bottom surface of the workbench.

[0009] Preferably, the upper surface of the worktable is provided with an annular groove, and an annular block is slidably connected inside the annular groove. The upper surface of the annular block is fixedly installed with the bottom surface of the rotary table.

[0010] Preferably, a protective cover is installed on the bottom surface of the workbench, and a protective net is fixedly embedded in the bottom surface of the protective cover.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The bottom welding structure of this cylindrical lithium battery uses a motor to drive the first gear to rotate, which in turn drives the second gear, rotating rod, and rotating table to rotate. Simultaneously, in conjunction with the spot welding mechanism and the fixing mechanism, the fixed workpiece can be rotated sequentially to the bottom of the spot welding mechanism for continuous spot welding. This eliminates the need for frequent loading and unloading of workpieces, improving spot welding efficiency. By utilizing a visual sensor and an audible and visual alarm, the system can perform image analysis on the spot-welded workpiece, detect the spot welding quality, and provide audible and visual alarms to alert workers when defects are found, enhancing its practicality. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the bottom welding structure of the cylindrical lithium battery of this utility model;

[0014] Figure 2 This is a side sectional view of the protective cover in the bottom welding structure of the cylindrical lithium battery of this utility model;

[0015] Figure 3 This is a top view schematic diagram of the bottom welding structure of the cylindrical lithium battery of this utility model;

[0016] Figure 4 This is a bottom view schematic diagram of the bottom welding structure of the cylindrical lithium battery of this utility model.

[0017] Figure Descriptions: 1. Workbench; 2. Spot welding mechanism; 201. Support; 202. Electric push rod; 203. Mounting plate; 204. Spot welder; 3. Motor; 4. First gear; 5. Bearing; 6. Rotating rod; 7. Second gear; 8. Rotary table; 9. Fixing mechanism; 901. Vertical plate; 902. Spring; 903. Clamping plate; 10. Carrier plate; 11. Vision sensor; 12. Audible and visual alarm; 13. Control panel; 14. Support leg; 15. Annular groove; 16. Annular block; 17. Protective cover; 18. Protective net. Detailed Implementation

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4In this utility model, a bottom welding structure for a cylindrical lithium battery includes a workbench 1, a spot welding mechanism 2 at the rear of the workbench 1, a motor 3 fixedly mounted on the bottom surface of the workbench 1, a first gear 4 fixedly mounted on the output end of the motor 3, a bearing 5 fixedly embedded on the upper surface of the workbench 1, a rotating rod 6 fixedly connected to the inner ring of the bearing 5, a second gear 7 fixedly mounted on the bottom end of the rotating rod 6, the second gear 7 meshing with the first gear 4, a rotating platform 8 fixedly mounted on the top end of the rotating rod 6, a fixing mechanism 9 on the upper surface of the rotating platform 8, a carrier plate 10 fixedly mounted on one side of the workbench 1, a vision sensor 11 mounted on the inner top wall of the carrier plate 10, and an audible and visual alarm 1 mounted on the upper surface of the carrier plate 10. 2. The vision sensor 11 is electrically connected to the controller and the audible and visual alarm 12. The motor 3 drives the first gear 4 to rotate, which in turn drives the second gear 7, the rotating rod 6, and the rotating table 8 to rotate. In cooperation with the spot welding mechanism 2 and the fixing mechanism 9, the fixed workpiece can be rotated sequentially to the bottom of the spot welding mechanism 2 for continuous spot welding. This eliminates the need for frequent loading and unloading of workpieces by the operator, improving the spot welding efficiency. By using the vision sensor 11 and the audible and visual alarm 12, the image of the spot-welded workpiece can be analyzed to detect the spot welding quality. If the workpiece is found to be defective, an audible and visual alarm will be triggered to alert the operator, improving its practicality during use.

[0021] The spot welding mechanism 2 includes a bracket 201, the front of which is fixedly installed to the back of the worktable 1. An electric push rod 202 is fixedly installed on the inner top wall of the bracket 201. An installation plate 203 is fixedly installed on the telescopic end of the electric push rod 202. A spot welder 204 is installed on the bottom surface of the installation plate 203. The fixing mechanism 9 includes four sets of upright plates 901. The bottom surfaces of the four sets of upright plates 901 are all fixedly installed to the upper surface of the rotary table 8. A set of springs 902 is fixedly connected to the side of the four sets of upright plates 901 that are close to each other. The ends of the eight sets of springs 902 that are close to each other are fixedly connected to four sets of clamping plates 903. With the setting of the spot welding mechanism 2, the electric push rod 202 can push the installation plate 203 and the spot welder 204 to move up and down, so as to spot weld the workpiece. With the setting of the fixing mechanism 9, multiple workpieces can be picked up and placed between the clamping plates 903 in sequence. The clamping plates 903 clamp and fix the workpieces by the contraction and rebound of the springs 902.

[0022] A control panel 13 is mounted on the bottom surface of the workbench 1. Two support legs 14 are fixedly connected to the bottom surface of the workbench 1. An annular groove 15 is formed on the upper surface of the workbench 1. An annular block 16 is slidably connected inside the annular groove 15. The upper surface of the annular block 16 is fixedly mounted to the bottom surface of the rotary table 8. A protective cover 17 is mounted on the bottom surface of the workbench 1. A protective net 18 is fixedly embedded in the bottom surface of the protective cover 17. The operating speed and operating status of the electrical components can be controlled through the control panel 13. The two support legs 14 provide stable support. The annular groove 15 and the annular block 16 make the rotation of the rotary table 8 more stable. The protective cover 17 and the protective net 18 protect the components inside. The motor 3, electric push rod 202, and spot welder 204 are all electrically connected to an external power supply through the control panel 13. The motor 3, electric push rod 202, and spot welder 204 are all existing technologies. Their specific structures, working principles, and electrical connections are not detailed here.

[0023] The working principle of this utility model is as follows:

[0024] In use, the device is first connected to a power source. Multiple workpieces are then placed between clamping plates 903 by the operator. The clamping plates 903 clamp and fix the workpieces using the contraction and rebound of springs 902. Next, the electric push rod 202 is activated to move the mounting plate 203 and the spot welder 204 up and down, performing spot welding on the workpieces. Then, the motor 3 is activated to rotate the first gear 4, which in turn rotates the second gear 7, the rotating rod 6, and the rotating table 8, sequentially rotating the workpieces to a position below the spot welding mechanism 2 for spot welding. Simultaneously, the vision sensor 11 is activated to analyze the image of the spot-welded workpieces and inspect the weld quality. If the weld is substandard, the audible and visual alarm 12 will sound an alarm to alert the operator.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A bottom welding structure for a cylindrical lithium battery, comprising a worktable (1), characterized in that: A spot welding mechanism (2) is provided behind the workbench (1). A motor (3) is installed on the bottom surface of the workbench (1). A first gear (4) is fixedly installed at the output end of the motor (3). A bearing (5) is fixedly embedded on the upper surface of the workbench (1). A rotating rod (6) is fixedly connected to the inner ring of the bearing (5). A second gear (7) is fixedly installed at the bottom end of the rotating rod (6). The second gear (7) meshes with the first gear (4). A rotating table (8) is fixedly installed at the top end of the rotating rod (6). A fixing mechanism (9) is provided on the upper surface of the rotating table (8). A carrier plate (10) is installed on one side of the workbench (1). A vision sensor (11) is installed on the inner top wall of the carrier plate (10). An audible and visual alarm (12) is installed on the upper surface of the carrier plate (10).

2. The bottom welding structure of a cylindrical lithium battery according to claim 1, characterized in that: The spot welding mechanism (2) includes a bracket (201), the front of the bracket (201) is fixedly installed on the back of the workbench (1), an electric push rod (202) is installed on the inner top wall of the bracket (201), an installation plate (203) is installed on the telescopic end of the electric push rod (202), and a spot welder (204) is installed on the bottom surface of the installation plate (203).

3. The bottom welding structure of a cylindrical lithium battery according to claim 1, characterized in that: The fixing mechanism (9) includes four sets of upright plates (901). The bottom surfaces of the four sets of upright plates (901) are fixedly installed on the upper surface of the rotating table (8). A set of springs (902) is fixedly connected to one side of each set of upright plates (901) that are close to each other. The ends of the eight sets of springs (902) that are close to each other are fixedly connected to four sets of clamping plates (903).

4. The bottom welding structure of a cylindrical lithium battery according to claim 1, characterized in that: The bottom surface of the workbench (1) is equipped with a control panel (13), and the bottom surface of the workbench (1) is fixedly connected with two support legs (14).

5. The bottom welding structure of a cylindrical lithium battery according to claim 1, characterized in that: The upper surface of the worktable (1) is provided with an annular groove (15), and an annular block (16) is slidably connected inside the annular groove (15). The upper surface of the annular block (16) is fixedly installed with the bottom surface of the rotary table (8).

6. The bottom welding structure of a cylindrical lithium battery according to claim 1, characterized in that: The bottom surface of the workbench (1) is equipped with a protective cover (17), and a protective net (18) is fixedly embedded in the bottom surface of the protective cover (17).

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