A lead-acid battery casting and welding device

Abstract

The utility model discloses a lead storage battery cast welding device, when cooperating cast welding bottom die, cast welding bottom die top surface has cast welding cavity, the lead storage battery cast welding device includes lead liquid adding mechanism, lead liquid adding mechanism is used for adding into lead liquid to cast welding cavity, include: support, lead pot is used for holding lead liquid, take lead liquid unit, including first lead liquid adding base and second lead liquid adding base, be equipped with the first horizontal pneumatic cylinder for driving first lead liquid adding base horizontal movement on the support, be equipped with the first vertical pneumatic cylinder for driving second lead liquid adding base vertical movement on first lead liquid adding base, the lower side of second lead liquid adding base still is equipped with the lead liquid cup of bottom surface aperture, still be equipped with the switch spare for controlling lead liquid cup bottom surface aperture opening and closing on second lead liquid adding base. Compared with the traditional technology and need to immerse cast welding bottom die in open melting lead furnace and carry out high temperature heating, the utility model can realize production line clean production.

Description

Technical Field

[0001] This utility model belongs to the field of lead-acid battery casting and welding technology, and specifically relates to a lead-acid battery casting and welding device. Background Technology

[0002] In recent years, with the rapid development of the new energy industry, the diversification of products, and increasingly fierce market competition, the lead-acid battery industry must make technological innovation in production line processes and equipment to achieve comprehensive performance in energy saving, consumption reduction, quality improvement, and cost reduction.

[0003] Battery casting and welding on the assembly line is a crucial step in battery manufacturing. The existing Xiaomi assembly line is equipped with six casting and welding machines, with a single line capacity of 12,000 units per day. The casting and welding machines are lead pot hot mold casting and welding machines, and each machine is equipped with a separate pot. The mold is heated by immersing the mold in molten lead, resulting in high energy consumption, high lead fume emissions, high lead slag rate, and low raw material utilization rate.

[0004] For example, the utility model with publication number CN11 1069573A discloses a battery casting and welding device, including a translation plate. The translation plate is provided with a first scraper and a second scraper. The second scraper is vertically and vertically disposed below the translation plate. When the casting and welding bottom mold is immersed in the lead liquid in the lead pot, the second scraper descends and moves horizontally with the translation plate to scrape the scum on the surface of the lead liquid to one side, and resets before the casting and welding bottom mold is raised above the lead pot.

[0005] For example, the utility model with publication number CN112222379A discloses a lead-acid battery casting and welding machine and its casting and welding method. In this utility model, the inlet driving mechanism is set below the lifting driving mechanism for moving the battery electrode group, the flipping mechanism is set on one side of the inlet driving mechanism for flipping the battery electrode group, the ejector driving mechanism is set on the other side of the inlet driving mechanism for clamping the battery electrode group, and the casting and welding mold is set below the inlet driving mechanism and driven by the lifting driving mechanism. The lifting driving mechanism, the inlet driving mechanism, and the ejector driving mechanism are connected by a support mechanism, which is set on the lead pot. Utility Model Content

[0006] This utility model addresses the aforementioned shortcomings in the existing technology by providing a lead-acid battery casting and welding device, which solves the problems of excessive lead fumes, high energy consumption, and low raw material utilization during the casting and welding process.

[0007] A lead-acid battery casting and welding device includes: a support frame, on which an infrared heating station, a lead liquid addition station and a casting and welding station are sequentially arranged;

[0008] A casting and welding bottom mold, comprising at least one, wherein the top surface of the casting and welding bottom mold has a casting and welding cavity;

[0009] An infrared heating mechanism is located at the infrared heating station and is used to heat the casting and welding bottom mold;

[0010] A lead liquid adding mechanism is provided at the lead liquid adding station for adding lead liquid into the casting and welding cavity;

[0011] A casting and welding mechanism, located at the casting and welding station, is used to insert the tabs on the inverted lead-acid battery into the casting and welding cavity and cast and weld them to form a busbar and terminal posts.

[0012] The transfer mechanism is used to transfer the casting and welding bottom mold between various work stations.

[0013] Preferably, the infrared heating mechanism includes two rows of infrared heating tubes, with a gap between the two rows of infrared heating tubes for the casting and welding bottom mold to pass through. The two rows of infrared heating tubes form a symmetrical heating structure, allowing the casting and welding bottom mold to pass through the gap, thereby achieving circumferential heating, ensuring the uniformity of the heating temperature of the casting and welding bottom mold, and achieving high temperature control accuracy.

[0014] Preferably, the bottom mold for casting and welding is provided with support blocks on both sides, and the support blocks are provided with sliding grooves;

[0015] The transfer mechanism includes: a first slide rail, located on both sides of the infrared heating station, the lead liquid addition station, and the casting and welding station, wherein the casting and welding bottom mold slides with the first slide rail via a groove on the support block; a first drive unit, used to drive the casting and welding bottom mold to move along the first slide rail; and a robotic arm, used to transfer the casting and welding bottom mold located at the casting and welding station after completing one casting and welding operation back to the upstream end of the infrared heating station.

[0016] Furthermore, the robotic arm includes a second slide rail, disposed above the infrared heating station, the lead liquid addition station, and the casting and welding station;

[0017] The robot arm base has a slide groove that mates with the second slide rail. The robot arm base is also provided with a lifting arm and a lifting drive unit that drives the lifting arm to lift. The bottom of the lifting arm is provided with a pair of horizontal moving grippers and a cylinder that drives the horizontal moving grippers to grip or release the casting and welding bottom mold.

[0018] The second drive unit is used to drive the robot arm base to move along the second slide rail.

[0019] Furthermore, support positions are provided on the support blocks on both sides of the casting and welding bottom mold;

[0020] The first drive unit includes a first drive base and a first linear rack arranged parallel to the first slide rail; the first drive unit also includes a first gear meshing with the first linear rack, and a first gear drive motor for driving the first gear to rotate is provided on the first drive base; the first drive base is also provided with a support cylinder, and the end of the piston rod of the support cylinder extends into the support position when it extends out.

[0021] The second drive unit includes a second linear rack arranged parallel to the second slide rail; the second drive unit also includes a second gear meshing with the second linear rack, and the robot base is provided with a second gear drive motor that drives the second gear to rotate.

[0022] The chute on the support block cooperates with the first slide rail in the transfer mechanism to achieve precise linear movement of the bottom mold between workstations, ensuring the alignment accuracy of lead liquid addition and casting / welding processes. The chute structure reduces transfer friction resistance, and together with the first drive unit (gear and rack transmission), the production cycle is increased to 12-15 seconds per workstation, enabling continuous battery casting and welding.

[0023] In addition, the lifting arm + horizontal gripper structure enables vertical grabbing and release of the bottom mold, and fully automated transfer replaces manual operation, reducing labor costs while avoiding the health risks to operators caused by high-temperature environments.

[0024] Preferably, the lead solution adding mechanism includes:

[0025] A lead pot, used to hold molten lead;

[0026] The lead liquid dispensing unit includes a first lead liquid adding base and a second lead liquid adding base. The support is provided with a first horizontal cylinder for driving the first lead liquid adding base to move horizontally. The first lead liquid adding base is provided with a first vertical cylinder for driving the second lead liquid adding base to move vertically. A lead liquid cup with an opening on the bottom surface is also provided below the second lead liquid adding base. The second lead liquid adding base is also provided with a switch for controlling the opening and closing of the opening on the bottom surface of the lead liquid cup.

[0027] The bracket is also equipped with a first horizontal slide rail, and the first lead liquid adding base is equipped with a sliding groove. The first lead liquid adding base slides horizontally through the sliding groove and the first horizontal slide rail. The first lead liquid adding base and the second lead liquid adding base are connected by a guide rod, and the first vertical cylinder drives the second lead liquid adding base to move vertically through the guide rod.

[0028] Furthermore, the lead liquid adding mechanism also includes a lead liquid adding guide, which has a guide port. The upper opening of the guide port is a flared mouth, and the lower opening corresponds to a set of casting and welding cavities on the casting and welding bottom mold.

[0029] On the one hand, the lead melting furnace is eliminated, and a lead molten metal adding mechanism is installed. The lead molten metal adding mechanism is separately controlled from the heating temperature control of the casting and welding mold, ensuring precise temperature control for both mechanisms and solving the problems of excessive lead fumes and high energy consumption during casting and welding. On the other hand, the lead molten metal adding mechanism is equipped with a switch. When the mechanism moves, the switch opens to automatically add lead; when the mechanism stops moving, the switch closes. The lead molten metal cup has enough capacity to add at least one casting and welding mold. Both ends of the lead molten metal adding mechanism are equipped with clamping adjustment screws for adjusting the distance between the mechanism and the casting and welding mold.

[0030] Preferably, the casting and welding mechanism includes:

[0031] A cooling tank is located on the side of the casting and welding station near the lead liquid adding mechanism. The top surface of the cooling tank is open, and when cooling the bottom mold of the casting and welding, the top surface opening of the cooling tank faces the bottom surface of the bottom mold of the casting and welding.

[0032] A placement plate, wherein the placement plate is provided with a placement opening for placing a lead-acid battery to be cast and welded upside down on the placement plate;

[0033] The cast-welded base includes two cylinders respectively disposed on both sides of the placement plate, and the cast-welded base is provided with a second vertical cylinder for driving the placement plate to move vertically;

[0034] The second horizontal cylinder, mounted on the bracket, is used to drive the cast-welded base to move horizontally.

[0035] It enables the cooling and casting / welding processes to be carried out simultaneously, improving the efficiency of single-line production.

[0036] This utility model of lead-acid battery casting and welding equipment achieves a green upgrade of the casting and welding process through an innovative infrared heating and automated transfer system. Compared to the traditional method of immersing the casting mold in an open lead melting furnace for high-temperature heating, this utility model uses two rows of infrared heating tubes to precisely control the temperature of the casting mold in a surrounding manner. The heating temperature is uniform, the heating speed is fast, and the mold temperature is controllable. It also completely eliminates the lead slag and lead fume pollution caused by high-temperature oxidation in open lead melting furnaces, achieving clean production on the production line. Through a closed-loop transfer system consisting of a robotic arm and slide rails, combined with the quantitative guide design of the lead liquid addition mechanism, the lead liquid is precisely injected from the sealed lead pot into the casting cavity through a switch valve, avoiding the lead liquid splashing waste caused by the movement of the mold in the traditional process and improving the utilization rate of raw materials. The entire device uses a modular design to enable multiple molds to operate in parallel, improving the production line efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the lead-acid battery casting and welding device of this utility model in the production line;

[0038] Figure 2This is a schematic diagram of the lead-acid battery casting and welding device of this utility model;

[0039] Figure 3 This is a left view of the lead-acid battery casting and welding device of this utility model;

[0040] Figure 4 This is a schematic diagram of the lead-acid battery casting and welding device after removing the infrared heating mechanism of this utility model.

[0041] Figure 5 This is a schematic diagram of a robotic arm;

[0042] Figure 6 A schematic diagram of the lead-liquid addition mechanism;

[0043] Figure 7 This is a schematic diagram of the lead-retrieving unit;

[0044] Figure 8 for Figure 7 A vertical screenshot of AA;

[0045] Figure 9 This is a schematic diagram of the casting and welding mechanism;

[0046] Figure 10 This is a front view of the casting and welding mechanism;

[0047] Markings in the diagram: 1-Casting and welding bottom mold, 11-Casting and welding cavity, 12-Support block, 121-Slide groove, 122-Support position, 2-Infrared heating mechanism, 3-Lead liquid adding mechanism, 31-Lead pot, 32-Lead liquid taking unit, 321-First lead liquid adding base, 3211-First horizontal cylinder, 3212-First vertical cylinder, 3213-First horizontal slide rail, 322-Second lead liquid adding base, 3221-Lead liquid cup, 3222-Switch, 3223-Guide rod, 33-Lead liquid adding guide, 331-Guide port, 34-Pressure adjusting screw, 4-Casting and welding mechanism, 41-Cooling tank, 4 2-Placement plate, 421-Placement opening, 43-Cast-welded base, 431-Second vertical cylinder, 44-Second horizontal cylinder, 5-Transfer mechanism, 51-First slide rail, 52-Manipulator, 521-Second slide rail, 522-Manipulator base, 5221-Lifting arm, 52211-Horizontal moving gripper, 52212-Cylinder, 523-Second drive unit, 5231-Second linear rack, 524-Second gear drive motor, 53-First drive unit, 531-First drive base, 5311-First gear drive motor, 5312-Support cylinder, 532-First linear rack. Detailed Implementation

[0048] Depend on Figure 1-10As shown, this utility model provides a lead-acid battery casting and welding device, including: a support frame, on which an infrared heating station, a lead liquid adding station, and a casting and welding station are sequentially arranged; a casting and welding bottom mold 1, including at least one, the top surface of the casting and welding bottom mold 1 having a casting and welding cavity 11; an infrared heating mechanism 2, located at the infrared heating station, for heating the casting and welding bottom mold 1; a lead liquid adding mechanism 3, located at the lead liquid adding station, for adding lead liquid into the casting and welding cavity 11; a casting and welding mechanism 4, located at the casting and welding station, for extending the tabs on the inverted lead-acid battery into the casting and welding cavity 11 and casting and welding to form a busbar and terminal posts; and a transfer mechanism 5, for transferring the casting and welding bottom mold 1 between the various stations.

[0049] Specifically, the infrared heating mechanism 2 includes two rows of infrared heating tubes, which form a symmetrical heating structure. There is a gap between the two rows of infrared heating tubes for the casting and welding bottom mold 1 to pass through, so as to achieve circumferential heating and ensure the uniformity of the heating temperature of the casting and welding bottom mold.

[0050] The casting and welding bottom mold 1 is provided with support blocks 12 on both sides, and the support blocks are provided with sliding grooves; the transfer mechanism 5 includes: a first slide rail 51, which is provided on both sides of the infrared heating station, the lead liquid addition station and the casting and welding station, and the casting and welding bottom mold 1 slides with the first slide rail 51 through the sliding groove on the support block 12; a first drive unit 53, which is used to drive the casting and welding bottom mold 1 to move along the first slide rail 51; and a robot arm 52, which is used to transfer the casting and welding bottom mold 1 located at the casting and welding station after completing one casting and welding operation to the upstream end of the infrared heating station.

[0051] Specifically, the robotic arm 52 includes: a second slide rail 521, located above the infrared heating station, the lead liquid addition station, and the casting and welding station; a robotic arm base 522, having a slide groove that mates with the second slide rail 521, and the robotic arm base 522 is also provided with a lifting arm 5221 and a lifting drive unit for driving the lifting arm 5221 to lift and lower, the bottom of the lifting arm 5221 is provided with a pair of horizontally moving grippers 52211 and a cylinder 52212 for driving the horizontally moving grippers 52211 to grip or release the casting and welding bottom mold 1; and a second drive unit 523 for driving the robotic arm base 522 to move along the second slide rail 521.

[0052] Support positions 122 are provided on the support blocks 12 on both sides of the casting and welding bottom mold 1;

[0053] The first drive unit 53 includes a first drive base 531 and a first linear rack 532 arranged parallel to the first slide rail 51; the first drive unit 53 also includes a first gear meshing with the first linear rack 532, and a first gear drive motor 5311 for driving the first gear to rotate is provided on the first drive base 531; the first drive base 531 is also provided with a support cylinder 5312, and when the piston rod of the support cylinder 5312 extends out, its end extends into the support position 122;

[0054] The second drive unit 523 includes a second linear rack 5231 arranged parallel to the second slide rail 521; the second drive unit 523 also includes a second gear meshing with the second linear rack 5231, and a second gear drive motor 524 for driving the second gear to rotate is provided on the robot base 522.

[0055] The chute on the support block cooperates with the first slide rail in the transfer mechanism to achieve precise linear movement of the bottom mold between workstations, ensuring the alignment accuracy of lead liquid addition and casting and welding processes; the bottom of the support block is equipped with a support position for positioning and lifting of the first drive unit; the chute structure reduces the frictional resistance of the transfer, and in conjunction with the first drive unit (gear and rack transmission), the production cycle is increased to 12-15 seconds / workstation, realizing continuous production of battery casting and welding.

[0056] In addition, the lifting arm + horizontal gripper structure enables vertical grabbing and release of the bottom mold, and fully automated transfer replaces manual operation, reducing labor costs while avoiding the health risks to operators caused by high-temperature environments.

[0057] The lead liquid adding mechanism 3 includes: a lead pot 31 for holding lead liquid; and a lead liquid taking unit 32, including a first lead liquid adding base 321 and a second lead liquid adding base 322. A first horizontal cylinder 3211 for driving the first lead liquid adding base 321 to move horizontally is provided on the support. A first vertical cylinder 3212 for driving the second lead liquid adding base 322 to move vertically is provided on the first lead liquid adding base 321. A lead liquid cup 3221 with an opening on the bottom surface is also provided below the second lead liquid adding base 322. A switch 3222 for controlling the opening and closing of the opening on the bottom surface of the lead liquid cup 3221 is also provided on the second lead liquid adding base 322.

[0058] The bracket is also equipped with a first horizontal slide rail 3213, and a sliding groove is provided on the first lead liquid adding base 321. The first lead liquid adding base 321 slides and engages with the first horizontal slide rail 3213 through the sliding groove to move horizontally. The first lead liquid adding base 321 and the second lead liquid adding base 322 are connected by a guide rod 3223. The first vertical cylinder 3212 drives the second lead liquid adding base 322 to move vertically through the guide rod 3223.

[0059] On the one hand, the lead melting furnace is eliminated and a lead liquid adding mechanism is installed. The lead liquid adding mechanism is controlled separately from the heating temperature control of the casting and welding bottom mold, which ensures the accuracy of the temperature control of the lead liquid adding mechanism and the heating temperature of the casting and welding bottom mold, and solves the problems of large amounts of lead fumes and high energy consumption in the casting and welding process. On the other hand, the lead liquid adding mechanism is equipped with a switch. When the lead liquid adding mechanism moves, the switch opens to realize automatic lead filling. When the lead liquid adding mechanism stops moving, the switch closes. Moreover, the amount of lead liquid in the cup is sufficient to add at least one casting and welding bottom mold.

[0060] The lead liquid adding mechanism 3 of this utility model also includes a lead liquid adding guide 33, which has a guide port 331. The upper opening of the guide port is a flared mouth, and the lower opening corresponds to a set of casting and welding cavities 11 on the casting and welding bottom mold 1. The lead liquid adding guide can be made of alloy copper, which can make close contact with the surface of the casting and welding bottom mold without affecting the transfer of the casting and welding bottom mold. The lead liquid adding mechanism has a clamping adjustment screw 34 at both ends, which can adjust the tension between the lead liquid adding mechanism and the casting and welding bottom mold to ensure that no lead liquid overflows during the lead pouring process of the casting and welding bottom mold.

[0061] The casting and welding mechanism 4 includes: a cooling tank 41, located on the side of the casting and welding station near the lead liquid addition mechanism 3, with an opening on the top surface of the cooling tank 41, and the opening on the top surface of the cooling tank 41 facing the bottom surface of the casting and welding bottom mold 1 when cooling the bottom mold 1; a placement plate 42, with a placement opening 421 for placing the lead-acid battery to be cast and welded upside down on the placement plate 42; a casting and welding base 43, including two respectively located on both sides of the placement plate 42, with a second vertical cylinder 431 for driving the placement plate 42 to move vertically; and a second horizontal cylinder 44, located on a bracket, for driving the casting and welding base 43 to move horizontally. Molten lead is poured from the lead cup into the casting mold cavity. The lead-acid battery, which is placed upside down on the placement plate for casting, is then lowered, and the electrode tabs are inserted into the molten lead in the casting mold cavity. The casting mold is cooled by a cooling tank, which can be achieved by spraying cold water or other cooling methods. The busbar and terminal posts are then formed, completing the casting process. This process allows cooling and casting to be carried out simultaneously, improving the efficiency of single-line production.

[0062] When using the lead-acid battery casting and welding device of this utility model for casting and welding, the following steps are included:

[0063] Step S1: Heating the casting and welding bottom mold

[0064] The transfer mechanism 5 transports the casting and welding bottom mold 1 along the first slide rail 51 to the infrared heating station; the infrared heating mechanism 2 starts the double-row heating tubes to heat the bottom mold to a certain temperature in a circumferential manner.

[0065] Step S2: Precise addition of lead solution

[0066] After being heated, the casting and welding bottom mold 1 is transferred to the lead liquid addition station;

[0067] Action of lead liquid dispensing unit 32:

[0068] The first horizontal cylinder 3211 pushes the lead liquid cup 3221 to directly below the lead pot 31; the first vertical cylinder 3212 lowers the lead liquid cup 3221 to immerse the lead liquid, and the switch 3222 opens the lead filling; the lead liquid cup 3221 rises and moves horizontally above the guide 33, the switch 3222 opens, and the lead liquid flows into the casting and welding cavity 11 through the flared mouth.

[0069] Step S3: Synchronous cooling and casting welding

[0070] After the lead solution is added, the casting and welding bottom mold 1 enters the casting and welding station:

[0071] Cooling stage: The cooling tank 41 moves upward to fit the bottom surface of the bottom mold and starts water cooling.

[0072] Casting and welding stage:

[0073] The operator inverts the lead-acid battery onto the placement opening 421 of the placement plate 42; the second horizontal cylinder 44 pushes the casting and welding base 43, so that the battery tabs are inserted into the molten lead in the casting and welding cavity 11; the second vertical cylinder 431 presses down on the placement plate 42 and maintains pressure to form the busbar.

[0074] After the casting and welding are completed, the robotic arm 52 grabs the casting and welding bottom mold 1 and returns it to the upstream of the heating station to start the next batch.

Claims

1. A lead-acid battery casting and welding device, used in conjunction with a casting and welding base mold, wherein the top surface of the casting and welding base mold has a casting and welding cavity, and the lead-acid battery casting and welding device includes a lead liquid adding mechanism, characterized in that... The lead liquid adding mechanism is used to add lead liquid into the casting and welding cavity; The lead solution adding mechanism includes: support; A lead pot, used to hold molten lead; The lead liquid dispensing unit includes a first lead liquid adding base and a second lead liquid adding base. The support is provided with a first horizontal cylinder for driving the first lead liquid adding base to move horizontally. The first lead liquid adding base is provided with a first vertical cylinder for driving the second lead liquid adding base to move vertically. A lead liquid cup with an opening on the bottom surface is also provided below the second lead liquid adding base. The second lead liquid adding base is also provided with a switch for controlling the opening and closing of the opening on the bottom surface of the lead liquid cup.

2. The lead-acid battery casting and welding apparatus according to claim 1, characterized in that, The bracket is also equipped with a first horizontal slide rail, and the first lead liquid adding base is equipped with a sliding groove. The first lead liquid adding base slides in conjunction with the first horizontal slide rail through the sliding groove.

3. The lead-acid battery casting and welding apparatus according to claim 1, characterized in that, The first lead liquid adding base and the second lead liquid adding base are connected by a guide rod, and the first vertical cylinder drives the second lead liquid adding base to move vertically through the guide rod.

4. The lead-acid battery casting and welding apparatus according to claim 1, characterized in that, The lead liquid adding mechanism also includes a lead liquid adding guide, which has a guide port. The upper opening of the guide port is a flared mouth, and the lower opening corresponds to a set of casting and welding cavities on the casting and welding bottom mold.

5. The lead-acid battery casting and welding apparatus according to claim 1, characterized in that, The lead liquid adding mechanism is also equipped with clamping and adjusting screws at both ends for adjusting the distance between the lead liquid adding mechanism and the casting and welding bottom mold.

6. The lead-acid battery casting and welding apparatus according to claim 1, characterized in that, The lead liquid cup has enough stock to accommodate at least one casting and welding bottom mold.

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