Automatic assembling device for lithium battery cap

Abstract

The utility model relates to an automatic lithium battery cap assembling device which comprises a circular ring and a rotating mechanism, a plurality of positioning grooves are coaxially formed in the outer surface of the circular ring in an array mode, a plurality of annular grooves are formed in the circular ring, the annular grooves and the positioning grooves are coaxially arranged, a plurality of first through grooves are formed in the inner walls of the positioning grooves, and a plurality of second through grooves are formed in the inner walls of the first through grooves. A plurality of wedge-shaped blocks are arranged in the annular groove, the ends of the wedge-shaped blocks penetrate through the first through groove and extend into the positioning groove, a conical ring is arranged in the annular groove, a first spring is arranged in the annular groove, and the two ends of the first spring abut against the conical ring and the inner wall of the annular groove correspondingly; a plurality of second through grooves are formed in the outer surfaces of the two sides of the circular ring, and pressing rods are installed on the outer surfaces of the two sides of the conical ring. According to the pressure welding device, the lithium battery in the positioning groove can be clamped and fixed, so that the stability in the pressure welding process is improved, the product quality is guaranteed, after pressure welding is completed, the purpose of automatic discharging can be achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to an automatic assembly device for lithium battery caps. Background Technique

[0002] Lithium batteries are high-energy-density, lightweight and rechargeable batteries, which are widely used in fields such as smart phones, electric vehicles and energy storage systems. It has the advantages of long service life, low self-discharge rate and fast charging, and has become the preferred energy source for modern electronic devices and electric vehicles. During the production process of lithium batteries, a pressure welding device is required to perform pressure welding and fixing on the caps of lithium batteries.

[0003] Currently, when performing cap pressure welding on lithium batteries, workers place the lithium batteries in the positioning grooves for pressure welding. However, the positioning grooves only play a positioning role, and the fixing effect on the lithium batteries is poor, which easily leads to displacement during the pressure welding process, thus affecting the product quality. In addition, after the pressure welding is completed, workers also need to manually remove the battery from the positioning groove, and this additional operation step is time-consuming, increasing the time cost of the overall production process and thus reducing the production efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic assembly device for lithium battery caps to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows.

[0006] An automatic assembly device for lithium battery caps includes a circular ring and a rotating mechanism. A plurality of positioning grooves are coaxially arranged on the outer surface of the circular ring. A plurality of annular grooves are opened inside the circular ring, and the annular grooves are coaxially arranged with the positioning grooves. A plurality of first through grooves are opened on the inner wall of the positioning grooves. A plurality of wedge-shaped blocks are arranged inside the annular grooves, and the ends of the wedge-shaped blocks extend into the positioning grooves through the first through grooves. A conical ring is arranged inside the annular grooves. A first spring is arranged inside the annular grooves, and the two ends of the first spring are respectively abutted against the conical ring and the inner wall of the annular grooves. A plurality of second through grooves are opened on the outer surfaces of both sides of the circular ring. Pressing rods are installed on the outer surfaces of both sides of the conical ring, and the ends of the pressing rods extend to the outside of the circular ring through the second through grooves. A connecting block is installed on the outside of the rotating mechanism, an arc-shaped block is installed at the end of the connecting block, and an electric push rod is installed on the top of the rotating mechanism. The end of the telescopic end of the electric push rod is installed with a welding head.

[0007] It can be seen that by pushing the conical ring upward with the first spring, the conical ring squeezes a plurality of wedge blocks, and then drives the plurality of wedge blocks to move simultaneously in the direction of the center of the circle, so that the lithium battery inside the positioning groove can be clamped and fixed, thereby improving the stability during the pressure welding process, ensuring the product quality. When the pressure welding is completed, the rotating mechanism drives the ring to rotate. When the pressure rod squeezes the arc-shaped block, the arc-shaped block contracts and drives the conical ring to move downward. At this time, the lithium battery loses its fixation and slides out of the positioning groove under the action of gravity, thus achieving the purpose of automatic blanking and improving the production efficiency.

[0008] Further, the rotating mechanism includes a base and a U-shaped plate. The U-shaped plate is installed on the upper surface of the base. A bracket is installed inside the ring. Connecting shafts are connected to the outer surfaces of both sides of the bracket. The ends of the connecting shafts are connected to the U-shaped plate. A servo motor is installed on the outer surface of the U-shaped plate. The end of the output shaft of the servo motor is connected to the connecting shaft.

[0009] The U-shaped plate provides an installation position for the electric push rod and the connecting block. The servo motor can drive the connecting shaft to rotate intermittently, and achieve the purpose of driving the ring to rotate intermittently. After the ring rotates a certain angle each time, the upper positioning groove corresponds exactly to the welding head, enabling precise pressure welding.

[0010] Further, a groove is opened on the top wall of the annular groove. A slide bar is installed inside the groove. A slider is slidably installed on the outer surface of the slide bar, and the slider is connected to the wedge block. A second spring is sleeved on the outer surface of the slide bar. The two ends of the second spring are respectively connected to the inner wall of the groove and the slider.

[0011] When the conical ring squeezes the wedge block to drive it to move, the wedge block drives the slider to slide on the slide bar and stretches the second spring. When the conical ring moves downward, the wedge block loses the extrusion and the stretched second spring contracts, so that the wedge block can be driven to contract into the annular groove and separate from the lithium battery, thus canceling the fixation of the lithium battery and enabling it to slide out of the positioning groove under the action of gravity to complete automatic blanking.

[0012] Further, mounting holes are opened at the four corners of the base.

[0013] Through the arrangement of the mounting holes, the device can be fixed to improve the stability.

[0014] Further, a rubber pad is arranged on the outer surface of the wedge block, and anti-slip lines are opened on the outer surface of the rubber pad.

[0015] Through the arrangement of the rubber pad and the anti-slip lines, the friction between the wedge block and the lithium battery can be increased, further improving the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is the front view structural schematic diagram of the present utility model;

[0018] Figure 3 This is the partial sectional structural schematic diagram of the positioning groove in the present utility model;

[0019] Figure 4 is Figure 3 the enlarged schematic diagram of A in

[0020] Figure 5 This is the structural schematic diagram of the conical ring in the present utility model.

[0021] In the figure: 100, circular ring; 101, positioning groove; 102, annular groove; 103, first through groove; 104, wedge block; 105, conical ring; 106, first spring; 107, second through groove; 108, pressure rod; 109, electric push rod; 110, welding head; 111, arc-shaped block; 112, connecting block; 200, rotating mechanism; 201, base; 202, U-shaped plate; 203, bracket; 204, connecting shaft; 205, servo motor; 300, groove; 301, sliding rod; 302, slider; 303, second spring; 400, mounting hole. Specific embodiments

[0022] The present utility model will be described in detail below with reference to the accompanying drawings.

[0023] As Figures 1-5 shown, an automatic assembly device for a lithium battery cap includes a circular ring 100 and a rotating mechanism 200. A plurality of positioning grooves 101 are coaxially arranged on the outer surface of the circular ring 100 in an array. A plurality of annular grooves 102 are formed inside the circular ring 100, and the annular grooves 102 are coaxially arranged with the positioning grooves 101. A plurality of first through grooves 103 are formed on the inner wall of the positioning grooves 101. A plurality of wedge blocks 104 are arranged inside the annular grooves 102, and the ends of the wedge blocks 104 pass through the first through grooves 103 and extend into the positioning grooves 101. A conical ring 105 is arranged inside the annular grooves 102. A first spring 106 is arranged inside the annular grooves 102, and the two ends of the first spring 106 are respectively abutted against the conical ring 105 and the inner wall of the annular grooves 102. A plurality of second through grooves 107 are formed on the outer surfaces of both sides of the circular ring 100. Pressure rods 108 are installed on the outer surfaces of both sides of the conical ring 105, and the ends of the pressure rods 108 pass through the second through grooves 107 and extend to the outside of the circular ring 100. A connecting block 112 is installed on the outside of the rotating mechanism 200, an arc-shaped block 111 is installed at the end of the connecting block 112, and an electric push rod 109 is installed on the top of the rotating mechanism 200. A welding head 110 is installed at the end of the telescopic end of the electric push rod 109.

[0024] During use, the staff member pulls down the uppermost pressure rod 108, driving the conical ring 105 to move downward and compress the first spring 106. Subsequently, a lithium battery with a cap is inserted into the uppermost positioning groove 101. Then, the pressure rod 108 is released. At this time, the compressed first spring 106 releases its elastic force, driving the conical ring 105 to push upward. The conical ring 105 squeezes multiple wedge-shaped blocks 104 upward, thus driving the multiple wedge-shaped blocks 104 to move simultaneously towards the center of the circle and press tightly against the outer surface of the lithium battery, achieving the purpose of fixing it. Then, the electric push rod 109 drives the welding head 110 to descend to perform pressure welding on the cap of the lithium battery. After the pressure welding, the rotating mechanism 200 drives the ring 100 to rotate a certain angle, causing the next positioning groove 101 to rotate to the uppermost side and align with the welding head 110. The staff member repeats the above operations for pressure welding. When the positioning groove 101 containing the welded lithium battery rotates to the lower side, the pressure rod 108 is squeezed by the arc-shaped block 111, thereby driving the pressure rod 108 to contract and driving the conical ring 105 to move downward. At this time, the lithium battery loses its fixation and slides out of the positioning groove 101 under the action of gravity, thus achieving the purpose of automatic blanking and improving production efficiency.

[0025] Specifically, the rotating mechanism 200 includes a base 201 and a U-shaped plate 202. The U-shaped plate 202 is installed on the upper surface of the base 201. A bracket 203 is installed inside the ring 100. Connecting shafts 204 are connected to the outer surfaces on both sides of the bracket 203. The ends of the connecting shafts 204 are connected to the U-shaped plate 202. A servo motor 205 is installed on the outer surface of the U-shaped plate 202. The end of the output shaft of the servo motor 205 is connected to the connecting shaft 204. The U-shaped plate 202 provides installation positions for the electric push rod 109 and the connecting block 112. By driving the connecting shaft 204 to rotate intermittently through the servo motor 205, the purpose of driving the ring 100 to rotate intermittently can be achieved. After the ring 100 rotates a certain angle each time, the upper positioning groove 101 exactly corresponds to the welding head 110, enabling precise pressure welding.

[0026] Specifically, a groove 300 is formed in the top wall of the annular groove 102. A slide bar 301 is installed inside the groove 300. A slider 302 is slidably installed on the outer surface of the slide bar 301, and the slider 302 is connected to the wedge-shaped block 104. A second spring 303 is sleeved on the outer surface of the slide bar 301. The two ends of the second spring 303 are respectively connected to the inner wall of the groove 300 and the slider 302. When the conical ring 105 squeezes the wedge-shaped block 104 to drive it to move, the wedge-shaped block 104 drives the slider 302 to slide on the slide bar 301 and stretches the second spring 303. When the conical ring 105 moves downward, the wedge-shaped block 104 loses the extrusion and the stretched second spring 303 contracts, thus driving the wedge-shaped block 104 to contract into the annular groove 102, separating it from the lithium battery, canceling the fixation of the lithium battery, and enabling it to slide out of the positioning groove 101 under the action of gravity to complete automatic blanking.

[0027] Specifically, mounting holes 400 are provided at the four corners of the base 201. Through the arrangement of the mounting holes 400, the device can be fixed to improve stability.

[0028] Specifically, a rubber pad is provided on the outer surface of the wedge block 104, and anti-slip lines are provided on the outer surface of the rubber pad. Through the arrangement of the rubber pad and the anti-slip lines, the friction between the wedge block 104 and the lithium battery can be increased, further improving the fixing effect.

[0029] The above is a detailed description of the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation manners of the present utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several equivalent substitutions or obvious modifications are made, and the performance or use is the same, and all should be regarded as belonging to the patent protection scope determined by the claims submitted by the present utility model.

Claims

1. An automatic assembly device for a lithium battery cap, comprising a ring (100) and a rotating mechanism (200), characterized in that: A plurality of positioning grooves (101) are coaxially arranged on the outer surface of the ring (100), a plurality of annular grooves (102) are formed inside the ring (100), and the annular grooves (102) are arranged coaxially with the positioning grooves (101). A plurality of first through grooves (103) are formed on the inner wall of the positioning grooves (101). A plurality of wedge-shaped blocks (104) are arranged inside the annular grooves (102), and the ends of the wedge-shaped blocks (104) extend into the positioning grooves (101) through the first through grooves (103). A conical ring (105) is arranged inside the annular grooves (102), and a first spring (106) is arranged inside the annular grooves (102). The two ends of the first spring (106) are respectively abutted against the conical ring (105) and the inner wall of the annular grooves (102); A plurality of second through grooves (107) are formed on the outer surfaces of both sides of the ring (100). Pressing rods (108) are installed on the outer surfaces of both sides of the conical ring (105), and the ends of the pressing rods (108) extend to the outside of the ring (100) through the second through grooves (107); A connecting block (112) is installed on the outside of the rotating mechanism (200), an arc-shaped block (111) is installed at the end of the connecting block (112), an electric push rod (109) is installed on the top of the rotating mechanism (200), and a welding head (110) is installed at the end of the telescopic end of the electric push rod (109).

2. The automatic assembly device for a lithium battery cap according to claim 1, characterized in that: The rotating mechanism (200) includes a base (201) and a U-shaped plate (202). The U-shaped plate (202) is installed on the upper surface of the base (201). A bracket (203) is installed inside the ring (100). Connecting shafts (204) are connected to the outer surfaces of both sides of the bracket (203), and the ends of the connecting shafts (204) are connected to the U-shaped plate (202). A servo motor (205) is installed on the outer surface of the U-shaped plate (202), and the end of the output shaft of the servo motor (205) is connected to the connecting shaft (204).

3. The automatic assembly device for a lithium battery cap according to claim 2, characterized in that: A groove (300) is formed on the top wall of the annular groove (102). A sliding rod (301) is installed inside the groove (300). A slider (302) is slidably installed on the outer surface of the sliding rod (301), and the slider (302) is connected to the wedge-shaped block (104). A second spring (303) is sleeved on the outer surface of the sliding rod (301), and the two ends of the second spring (303) are respectively connected to the inner wall of the groove (300) and the slider (302).

4. The automatic assembly device for a lithium battery cap according to claim 3, characterized in that: Mounting holes (400) are provided at the four corners of the base (201).

5. The automatic lithium battery cap assembling device according to claim 4, characterized in that: A rubber pad is arranged on the outer surface of the wedge-shaped block (104), and anti-slip lines are provided on the outer surface of the rubber pad.

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