Battery and electrode rotation auxiliary device for laser welding

Abstract

The battery and electrode rotation auxiliary device comprises a bottom plate and a vertical plate, the bottom face of the vertical plate is installed on the bottom plate, a sliding table air cylinder is arranged on the vertical plate, a piston rod of the sliding table air cylinder is connected with a lower pressing plate, a vacuum adsorption mechanism is arranged on the lower pressing plate, and a rotating mechanism is arranged on the bottom plate. A battery positioning mechanism is installed on the rotating mechanism, the battery positioning mechanism is located below the sliding table air cylinder, the battery positioning mechanism comprises a positioning block and a clamping piece, a positioning groove used for being attached to a battery is formed in the positioning block, the clamping piece is installed on one side of the positioning block, and the clamping piece is used for abutting against the outer side wall of the battery. Welding is completed by driving a battery and an electrode to rotate synchronously, the welding device is used in cooperation with laser welding, operation is convenient, welding of products of different heights can be met, and efficiency and the yield are improved.

Description

Technical Field

[0001] The invention relates to the technical field of battery welding, in particular to a battery and electrode rotation auxiliary device for laser welding. Background Art

[0002] During the manufacturing process of the battery, it is necessary to weld electrodes, i.e. studs, on the battery to achieve good conductivity. At present, the welding methods for batteries and electrodes on the market are relatively simple, basically manual spot welding and arc welding. Because the conduction of electricity at both ends of the battery is dangerous, these welding methods also have welding risks. In addition, the efficiency of manual spot welding is relatively low, and it is difficult to meet the mass production needs of batteries. Therefore, if you want to increase production volume, you will also increase production costs. For arc welding, the appearance of the welding is not very beautiful, which will reduce the quality of the battery. Laser welding can solve the shortcomings of the above two welding methods. The welding is beautiful, efficient, and easy to operate. However, the current laser welding structure lacks a flexible assembly device, making it difficult to effectively combine the battery and the electrode and perform good welding. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a battery and electrode rotation auxiliary device for laser welding.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A battery and electrode rotation auxiliary device for laser welding comprises a base plate and a vertical plate. The bottom surface of the vertical plate is mounted on the base plate. A slide cylinder is provided on the vertical plate. A lower pressure plate is mounted on the piston rod of the slide cylinder. A vacuum adsorption mechanism is provided on the lower pressure plate. A rotating mechanism is provided on the base plate. A battery positioning mechanism is mounted on the rotating mechanism. The battery positioning mechanism is located below the slide cylinder.

[0006] As a further improvement, the vacuum adsorption mechanism includes a lower pressure seat, a connecting rod and a bearing. The bearing is installed in the lower pressure seat, the lower pressure seat is connected to the lower pressure plate, the connecting rod is inserted in the bearing, the connecting rod is hollow inside, and the connecting rod is connected to the external air extraction and exhaust equipment through an air pipe.

[0007] As a further improvement, the battery positioning mechanism includes a positioning block and a clamping piece. The positioning block is provided with a positioning groove for fitting the battery. The clamping piece is installed on one side of the positioning block and is used to tighten the outer wall of the battery.

[0008] As a further improvement, the clamping member includes a clamping seat, a clamping handle and a clamping rod. The clamping seat is connected to the positioning block. One end of the clamping handle is rotatably hinged to the clamping seat through a pin. A connecting frame is mounted on the clamping rod. The connecting frame is hinged to the clamping seat through a pin. A connecting block is provided between the clamping handle and the connecting frame. The connecting block is rotatably mounted to the clamping handle and the connecting frame respectively.

[0009] As a further improvement, an elastic pad is provided at the end of the clamping rod.

[0010] As a further improvement, a stopper for limiting the battery is provided on the top of the positioning block, and an opening groove is provided on the stopper.

[0011] As a further improvement, the rotating mechanism includes a motor and a rotating platform. The motor is arranged on one side of the rotating platform. A bevel gear is arranged inside the rotating platform. The driving shaft of the motor is connected to a gear shaft. The gear shaft is meshed with the bevel gear. The bevel wheel is inserted with a rotating seat. A fixed seat is arranged inside the rotating seat. The bottom surface of the positioning block is connected to the fixed seat.

[0012] As a further improvement, a recessed hole is provided in the fixing seat, a guide column and a compression spring are provided in the recessed hole, one end of the compression spring is connected to the bottom surface of the recessed hole of the fixing seat, and the other end of the compression spring is extended into the guide column for a fixed connection, and an opening is provided on the bottom surface of the positioning block, and the guide column movably extends into the opening.

[0013] As a further improvement, the bottom plate is provided with reinforcing ribs, which are connected to the vertical plates.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] The electrodes are assembled using a liftable structure, which can meet the requirements of batteries and electrodes of different heights, achieve a good match, and effectively solve the problem of product height difference. The overall vertical equipment occupies a small space.

[0016] With a rotary structure, after adjusting the angle of the welding head, the welding head does not need to be moved. By driving the battery and electrode to rotate synchronously, comprehensive welding is completed, thereby improving welding accuracy.

[0017] Used in conjunction with laser welding equipment, it improves laser welding efficiency, especially the processing efficiency and accuracy of battery and electrode assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the assembly structure of the rotating platform of the present invention;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the rotating platform of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the present invention after assembling the battery.

[0022] Reference numerals:

[0023] Base plate 1, motor 2, reinforcing rib 3, positioning block 4, vertical plate 5, slide cylinder 6, lower pressure plate 7, lower pressure seat 8, connecting rod 9, positioning groove 10, clamping seat 11, connecting block 12, clamping handle 13, connecting frame 14, clamping rod 15, rotating platform 16, stopper 17, rotating seat 18, fixed seat 19, guide column 20, compression spring 21, bearing plate 22, battery 23. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1-4As shown, a battery and electrode rotation auxiliary device for laser welding includes a bottom plate 1 and a vertical plate 2, the bottom surface of the vertical plate is mounted on the bottom plate, a slide cylinder is provided on the vertical plate, a lower pressure plate is mounted on the piston rod of the slide cylinder, a vacuum adsorption mechanism is provided on the lower pressure plate, a rotation mechanism is provided on the bottom plate, a battery positioning mechanism is installed on the rotation mechanism, the battery positioning mechanism is located below the slide cylinder, the vacuum adsorption mechanism is used to adsorb and fix the electrode as an electrode, the battery positioning mechanism is used to install the battery, and the vacuum adsorption mechanism is driven up and down by the slide cylinder to achieve full contact between the electrode and the battery. The welding head is located on one side of the bottom plate, and the welding angle is adjusted to weld the connection between the electrode and the battery. The battery and the electrode are driven to rotate synchronously by the rotation mechanism, thereby completing 360-degree welding.

[0028] The vacuum adsorption mechanism includes a lower pressure seat 8, a connecting rod 9 and a bearing. The bearing is installed in the lower pressure seat 8, the lower pressure seat 8 is connected to the lower pressure plate 7, the connecting rod 9 is inserted in the bearing, the connecting rod 9 is hollow inside, and the connecting rod 9 is connected to the external air extraction and exhaust equipment through an air pipe. The air extraction and exhaust equipment can be an air compressor. When the air is extracted, a vacuum is formed inside the connecting rod, which can stably adsorb the electrode; when the air is released, the electrode can be taken out, and no adsorption force will be formed on the electrode, which is convenient for the assembly of the electrode. Since the connecting rod is assembled in the bearing, it can rotate, thereby ensuring that it rotates synchronously with the battery. The slide cylinder drives the lower pressure seat up and down through the lower pressure plate, so that it can meet the assembly of batteries or electrodes of different heights and expand the scope of adaptation.

[0029] The battery positioning mechanism includes a positioning block 4 and a clamping member. The positioning block 4 is provided with a positioning groove 10 for fitting the battery. The clamping member is installed on one side of the positioning block 4, and the clamping member is used to tighten the outer wall of the battery. The clamping member includes a clamping seat 11, a clamping handle 13 and a clamping rod 15. The clamping seat 11 is connected to the positioning block 4. One end of the clamping handle 13 is hingedly installed with the clamping seat 11 through a pin shaft. A connecting frame 14 is installed on the clamping rod 15. The connecting frame 14 is hingedly installed with the clamping seat 11 through a pin shaft. A connecting block 12 is provided between the clamping handle 13 and the connecting frame 14. The connecting block 12 is rotatably installed with the clamping handle 13 and the connecting frame 14 respectively. The clamping member is a clamp structure. In order to match the cylindrical battery, the positioning groove is set in an arc shape, and the battery is fastened in the positioning groove in the vertical direction. During the rotation of the clamping handle, the clamping rod can be driven to press against the battery from the outside to achieve further fastening of the battery.

[0030] The end of the clamping rod 15 is provided with an elastic pad, which contacts the surface of the battery by means of the elastic pad, and will not cause damage to the battery.

[0031] In addition, a stopper 17 for limiting the battery is provided on the top of the positioning block 4, and an opening slot is provided on the stopper 17, through which the electrode passes downward to contact and connect with the battery. The stopper is at the highest position, which limits the upper limit height of the battery.

[0032] The rotating mechanism includes a motor 2 and a rotating platform 16. The motor 2 is arranged on one side of the rotating platform 16. The rotating platform 16 is provided with a bevel gear. The driving shaft of the motor 2 is connected with a gear shaft. The gear shaft is meshed with the bevel gear. The gear shaft drives the bevel gear to rotate. The bevel gear is inserted with a rotating seat 18. The rotating seat 18 is movably installed inside the rotating platform 16. A fixed seat 19 is arranged inside the rotating seat 18. The bottom surface of the positioning block 4 is connected to the fixed seat 19. A recessed hole is arranged inside the fixed seat 19. A guide column 20 and a compression spring 21 are arranged in the recessed hole. One end of the compression spring 21 is connected to the bottom surface of the recessed hole of the fixed seat 19. The other end of the compression spring 21 extends into the guide column 20 and is tightly connected. The bottom surface of the positioning block 4 is provided with an opening. The guide column 20 is movably extended into the opening. There is a partition inside the guide column. The compression spring contacts the partition and pushes the guide column upward. After the battery is placed in the positioning groove, the bottom surface of the battery is located at the bottom surface of the positioning block. With the downward pressure, the guide column can be pressed down, so that the compression spring is compressed. The motor uses the gear shaft to drive the bevel gear to rotate, thereby switching the horizontal rotation to the vertical rotation. The rotating seat drives the fixed seat to rotate, and the rotating platform serves as an external frame, remains fixed, and drives the positioning block to rotate through the fixed seat.

[0033] In addition, in order to facilitate maintenance, a bearing plate 22 can be installed on the fixing seat 19 , and the bottom surface of the positioning block 4 is connected to the bearing plate 22 .

[0034] The bottom plate 1 is provided with reinforcing ribs 3 which are connected to the vertical plates to ensure the stability of the assembly.

[0035] The parts in contact with the battery are made of insulating materials to ensure electrical safety.

[0036] In the present invention, reference Figure 4 As shown, first turn the clamping handle 13 to open the clamping rod 15, and assemble the battery 23 in the positioning groove 10, with the bottom surface of the battery 23 against the guide column 20. Insert one end of the electrode into the connecting rod 9 to perform vacuum adsorption. The slide cylinder 6 presses down to press the electrode and the battery 23, and the rotating table is started to drive the battery body to weld. The vacuum adsorption structure adsorbs the electrode and the battery body together to form a fastening of the electrode and the battery, and can rotate together. The welding point is the edge of the electrode head and the head surface of the battery. The placement angle of the welding head is maintained at 30°-45°, and the specific angle is determined according to the welding requirements and the specific electrode head taper. After starting the welding head, the rotating platform drives the battery and the electrode to rotate synchronously, and the welding is formed in one week at a time. After the welding is completed, the clamping piece is opened, the slide cylinder rises, the product is taken out, and the same action is performed on the other side manually to continue welding, and then a finished product is completed.

[0037] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery and electrode rotation auxiliary device for laser welding, characterized in that: It includes a base plate and a vertical plate. The bottom surface of the vertical plate is installed on the base plate. A slide cylinder is arranged on the vertical plate. The piston rod of the slide cylinder is connected with a lower pressure plate. A vacuum adsorption mechanism is arranged on the lower pressure plate. A rotating mechanism is arranged on the base plate. A battery positioning mechanism is installed on the rotating mechanism. The battery positioning mechanism is located below the slide cylinder.

2. The battery and electrode rotation auxiliary device for laser welding according to claim 1, characterized in that: The vacuum adsorption mechanism includes a lower pressure seat, a connecting rod and a bearing. The bearing is installed in the lower pressure seat, the lower pressure seat is connected to the lower pressure plate, the connecting rod is inserted in the bearing, the connecting rod is hollow inside, and the connecting rod is connected to an external air extraction and exhausting device through an air pipe.

3. The battery and electrode rotation auxiliary device for laser welding according to claim 1, characterized in that: The battery positioning mechanism comprises a positioning block and a clamping piece. The positioning block is provided with a positioning groove for fitting the battery. The clamping piece is installed on one side of the positioning block and is used to tighten the outer side wall of the battery.

4. The battery and electrode rotation auxiliary device for laser welding according to claim 3, characterized in that: The clamping member includes a clamping seat, a clamping handle and a clamping rod. The clamping seat is connected to the positioning block. One end of the clamping handle is rotatably hinged to the clamping seat through a pin. A connecting frame is mounted on the clamping rod. The connecting frame is hinged to the clamping seat through a pin. A connecting block is provided between the clamping handle and the connecting frame. The connecting block is rotatably mounted to the clamping handle and the connecting frame respectively.

5. The battery and electrode rotation auxiliary device for laser welding according to claim 4, characterized in that: An elastic pad is provided at the end of the clamping rod.

6. The battery and electrode rotation auxiliary device for laser welding according to claim 3, characterized in that: A stopper for limiting the battery is arranged on the top of the positioning block, and an opening groove is arranged on the stopper.

7. The battery and electrode rotation auxiliary device for laser welding according to claim 3, characterized in that: The rotating mechanism includes a motor and a rotating platform. The motor is arranged on one side of the rotating platform. A bevel gear is arranged inside the rotating platform. The driving shaft of the motor is connected to a gear shaft. The gear shaft is meshed with the bevel gear. A rotating seat is inserted into the bevel wheel. A fixed seat is arranged inside the rotating seat. The bottom surface of the positioning block is connected to the fixed seat.

8. The battery and electrode rotation auxiliary device for laser welding according to claim 7, characterized in that: A recessed hole is provided in the fixing seat, in which a guide column and a compression spring are provided, one end of the compression spring is connected to the bottom surface of the recessed hole of the fixing seat, and the other end of the compression spring extends into the guide column for a fixed connection, and an opening is provided on the bottom surface of the positioning block, and the guide column movably extends into the opening.

9. The battery and electrode rotation auxiliary device for laser welding according to claim 1, characterized in that: The bottom plate is provided with reinforcing ribs which are connected to the vertical plates.

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