Horizontal battery tab cast-weld forming die

Abstract

The utility model discloses a horizontal battery tab cast-weld forming die which is provided with a die bearing body, a first die body and a second die body are arranged on the die bearing body in the transverse direction in a spaced mode, and heating pipelines and cooling water ways are arranged in the first die body and the second die body respectively. The first die body and the second die body are respectively provided with a first cavity and a second cavity, and the interior of the first cavity is used for welding a tab; a lead channel A and a lead channel B are arranged on the front side and the rear side of the first die body and the front side and the rear side of the second die body respectively, the ends of one sides of the lead channel A and the lead channel B are jointly communicated with a transverse section block, and the transverse section block is connected with lead liquid input from the outside. According to the cast-weld forming die, manual pouring and welding of a horizontal battery are replaced, the risk of personnel injury is effectively reduced, an existing ejector pin demolding mechanism is not needed, a product can be directly separated from the die after cast-weld forming, and the manufacturing cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production automation equipment, in particular to a horizontal battery tab casting and welding forming die. Background Art

[0002] In the current production of horizontal batteries, lead is usually used as the conductive material for the positive and negative tabs in the horizontal battery. The tabs need to be welded to the relevant parts of the horizontal battery in a welding form. At present, many production enterprises use the form of lead liquid casting and welding for welding. However, in production, either manual casting and welding of the horizontal battery tabs are adopted, or some non-standard tools are used for welding. Manual casting and welding are prone to the risk of personal injury. After casting, the ejection pin demoulding method is also required for demoulding. The structural requirements of mechanical equipment are relatively complex. Moreover, during the casting process, the temperature of the lead liquid is unstable, and it is difficult to control the casting quality; using some non-standard equipment for casting will result in poor production standardization. Therefore, it is necessary to study a relatively simple, reliable and efficient casting and welding forming die. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a horizontal battery tab casting and welding forming die in view of the above situation. The forming die has a simple and novel structural design, low cost and good use effect.

[0004] The specific scheme of the utility model is as follows: A horizontal battery tab casting and welding forming die has a die carrier. The first die body and the second die body are arranged at intervals in the transverse direction on the die carrier. Heating pipelines and cooling water channels are respectively arranged inside the first die body and the second die body. A first cavity and a second cavity are respectively arranged on the first die body and the second die body. Among them, the first cavity is used for welding the tabs; Lead channels A and B are respectively arranged on the front and rear sides of the first die body and the second die body. Lead channel A is simultaneously communicated with one side edge of the first cavity and the second cavity, and lead channel B is simultaneously communicated with the other side edge of the first cavity and the second cavity. One end heads of lead channel A and lead channel B are jointly communicated with a transverse block, and the transverse block is connected with the lead liquid input from the outside. Heating pipelines are arranged on the inner side walls of the transverse block, lead channel A and lead channel B.

[0005] Further, in the utility model, both lead channel A and lead channel B are cuboid closed structures. A plurality of liquid infusion channels are arranged at the parts of lead channel A and lead channel B that are communicated with the first cavity and the second cavity. The liquid infusion channels on lead channel A and lead channel B are respectively communicated with the corresponding first cavity and second cavity from both ends.

[0006] Further, in the present utility model, heating pipelines are provided inside each of the first die body and the second die body. The heating pipelines are arranged around the outer contours of the first cavity and the second cavity and are electrically heated; the cooling water channel is laid with cooling water pipes along the inner sides and the bottom of the side walls of the first cavity and the second cavity.

[0007] Further, in the present utility model, both the lead channel A and the lead channel B are long box-shaped structures with openings at both ends. The front, rear, upper, and lower four sides of the long box-shaped structure are all closed, and heating pipelines are provided inside the four walls of the upper, lower, front, and rear of the long box-shaped structure.

[0008] Further, in the present utility model, the transverse block is in the shape of a cuboid, and the inside of the transverse block is provided with a cavity structure. The two sides of the cavity structure lead to the lead channel A and the lead channel B respectively. A lead liquid injection channel is provided at the front part of the cavity structure, and an electric heating pipeline is provided inside the side wall of the cavity structure.

[0009] Further, in the present utility model, two air blowing pipes are respectively provided on the outer sides of the lead channel A and the lead channel B. Both of the two air blowing pipes are closed at one end and connected to a cooling air source at the other end. A plurality of air blowing holes are opened on the inner side wall of the air blowing pipe, and the air blowing holes are respectively arranged facing the first cavity and the second cavity.

[0010] The application of the mold of the present utility model replaces the manual pouring and welding of horizontal batteries, effectively reducing the risk of personnel injury. Through the casting and welding forming mold of the present utility model, there is no need to use the existing ejector pin demolding mechanism. After the product is cast and welded into shape, it can be directly separated from the mold, saving manufacturing costs; in the present utility model, the first die body and the second die body are heated to offset the temperature loss of the mold caused by water cooling, ensuring that the lead liquid can smoothly fill the cavity, and at the same time stabilizing the temperature of the mold cavity to ensure stable welding of the battery electrode tabs. In the present utility model, the separation form of two die bodies is adopted to reduce the mutual interference between the die bodies. Description of the Drawings

[0011] Figure 1 is the schematic structural diagram in the front view direction of the present utility model;

[0012] Figure 2 is the schematic structural diagram in the top view direction of the present utility model;

[0013] Figure 3 is the schematic structural diagram in the side view direction of the present utility model;

[0014] Figure 4 is the overall structural diagram of the present utility model.

[0015] In the figure: 1 - mold carrier, 2 - air blowing pipe, 3 - horizontal block, 4 - lead path A, 5 - second cavity, 6 - second mold body, 7 - first mold body, 8 - first cavity, 9 - lead path B, 10 - lead liquid injection channel, 11 - air blowing hole. Detailed implementation mode

[0016] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0017] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0018] See Figures 1 to 4, the present utility model is a horizontal battery tab casting and welding forming die, having a die carrier 1. On the die carrier, a first die body 7 and a second die body 6 are arranged at intervals in the horizontal direction. Heating pipelines and cooling water channels are respectively arranged inside the first die body and the second die body. A first cavity 8 and a second cavity 5 are respectively arranged on the first die body and the second die body. Among them, the first cavity is used for welding tabs; on the front and back sides of the first die body and the second die body, a lead channel A 4 and a lead channel B 9 are respectively arranged. The lead channel A is simultaneously connected to one side edge of the first cavity and the second cavity, and the lead channel B is simultaneously connected to the other side edge of the first cavity and the second cavity. One end heads of the lead channel A and the lead channel B are jointly connected to a transverse block 3, and the transverse block is connected to the lead liquid input from the outside. Heating pipelines are arranged on the inner side walls of the transverse block, the lead channel A and the lead channel B. Further, in the present utility model, both the lead channel A and the lead channel B are rectangular closed structures. A plurality of liquid infusion channels are arranged at the parts of the lead channel A and the lead channel B that are connected to the first cavity and the second cavity. The liquid infusion channels on the lead channel A and the lead channel B are respectively connected to the corresponding first cavity and second cavity from both ends. Further, in the present utility model, both the lead channel A and the lead channel B are long box-shaped structures with openings at both ends. The front, back, upper and lower four sides of the long box-shaped structure are all closed, and heating pipelines are arranged inside the upper, lower, front and back four walls of the long box-shaped structure.

[0019] Further, in this embodiment, heating pipelines are respectively arranged inside the first die body and the second die body. The heating pipelines are arranged around the outer contours of the first cavity and the second cavity and are electrically heated; the cooling water channel is laid with cooling water pipes along the inner sides and the bottom of the side walls of the first cavity and the second cavity. Further, in the present utility model, the transverse block is in a cuboid shape, and the inside of the transverse block is arranged as a cavity structure. The two sides of the cavity structure respectively lead to the lead channel A and the lead channel B. A lead liquid injection channel 10 is arranged at the front part of the cavity structure, and an electric heating pipeline is arranged inside the side wall of the cavity structure. Further, in the present utility model, two air blowing pipes 2 are respectively arranged on the outer side edges of the lead channel A and the lead channel B. Both air blowing pipes are closed at one end and connected to a cooling air source at the other end. A plurality of air blowing holes 11 are opened on the inner side wall of the air blowing pipe, and the air blowing holes are respectively arranged facing the first cavity and the second cavity.

[0020] The working process of the die of the present utility model is as follows:

[0021] First, the heating pipes inside the horizontal section block, lead channels A and B, and the first and second molds start to work. The heating pipes heat the lead channels and the horizontal section block to 400 °C, and the heating pipes in the first and second molds heat the two mold cavities to 200 °C to ensure that the lead liquid does not cool too fast, which may cause the lead liquid to not fill the cavities. While the first cavity and the second cavity are being heated, the cooling water channels inside them will cool the molds irregularly to ensure the constant temperature of the molds and prevent the molds from getting too hot. If the temperature is too high during welding, it is easy to cause over-melting of the battery tabs, and the cooling time after welding is too long, affecting the efficiency of battery casting and welding. When all components reach the set temperature, the external lead pump can divert and pump the lead liquid from the horizontal section block into the mold lead channels and then into the mold cavities, namely the first cavity and the second cavity. Then, the relevant automated robot can first insert the horizontal battery case and its tabs into the lead liquid in the first cavity of the mold for casting and welding. When the tabs are completely welded to the lead liquid in the cavity, the horizontal battery is flipped over, and the tabs on the other side are placed into the second cavity to be welded to the lead liquid therein. After the casting and welding are completed in each of the two cavities, the respective water channels start to let water through to quickly reduce the cavity temperature, and the lead liquid solidifies accordingly, completing the casting and welding; for the two cavities, the one that finishes casting and welding first can start to cool down by letting water through first. Subsequently, the external automatic manipulator completes demolding and transports the cast and welded battery to other processes.

[0022] The utility model conducts automated casting and welding operations on the battery tabs at both ends of the horizontal battery in one mold. The lead liquid flows into the corresponding cavities simultaneously from both ends of the cavity under heating and insulation conditions and fills the entire cavity, making the cavity filling more sufficient and full, and ensuring a more reliable casting and welding effect. The whole process is fully automated without manual operation; after the casting and welding are completed in the mold, it is easier and more efficient to demold after sufficient cooling with cooling water.

[0023] The application of the mold of the utility model replaces the manual pouring and welding of horizontal batteries, effectively reducing the risk of personal injury. With the casting and welding forming mold of the utility model, there is no need to use the existing ejector pin demolding mechanism, and the product can be directly separated from the mold after casting and welding, saving manufacturing costs; in the utility model, the heating method for the first and second molds is adopted to offset the temperature loss of the mold caused by water cooling, ensuring that the lead liquid can smoothly fill the cavity, and at the same time stabilizing the temperature of the mold cavity to ensure stable welding between the battery tabs. The separation form of the two molds is adopted in the utility model to reduce the mutual interference between the molds.

Claims

1. A horizontal battery tab casting and welding mold, characterized in that: A mold carrier is provided, on which a first mold body and a second mold body are arranged at intervals in the horizontal direction, a heating pipeline and a cooling water channel are arranged inside each of the first mold body and the second mold body, a first cavity and a second cavity are arranged on the first mold body and the second mold body respectively, wherein the first cavity is used for welding the pole ear; a lead track A and a lead track B are arranged on the front and back sides of the first mold body and the second mold body respectively, the lead track A is connected to one side of the first cavity and the second cavity at the same time, the lead track B is connected to the other side of the first cavity and the second cavity at the same time, one side end of the lead track A and the lead track B are connected to a cross section block together, the cross section block is connected to the lead liquid input from the outside, and the inner side walls of the cross section block, the lead track A and the lead track B are all provided with heating pipelines.

2. A horizontal battery tab casting and welding forming mold according to claim 1, characterized in that: The lead paths A and B are both closed rectangular structures. The parts of the lead paths A and B that are connected to the first cavity and the second cavity are provided with a plurality of infusion channels. The infusion channels on the lead paths A and B are connected to the corresponding first cavity and the second cavity from both ends.

3. A horizontal battery tab casting and welding forming mold according to claim 1, characterized in that: The first mold body and the second mold body are each provided with a heating pipeline inside, which is arranged around the outer contour of the first cavity and the second cavity and is electrically heated; the cooling water circuit is a cooling water pipeline laid along the inside of the side walls and the bottom of the first cavity and the second cavity.

4. A horizontal battery tab casting and welding mold according to claim 1, characterized in that: The leadway A and leadway B are both long box-shaped structures with openings at both ends. The front, back, top, and bottom sides of the long box-shaped structure are all closed, and heating pipelines are arranged inside the upper, lower, front, and bottom walls of the long box-shaped structure.

5. The horizontal battery tab casting and welding forming mold according to claim 1, characterized in that: The cross section block is in the shape of a rectangular parallelepiped, and a cavity structure is arranged inside the cross section block. The two sides of the cavity structure lead to the lead track A and the lead track B respectively. A lead liquid injection channel is arranged at the front of the cavity structure, and an electric heating pipeline is arranged inside the side wall of the cavity structure.

6. The horizontal battery tab casting and welding forming mold according to claim 1, characterized in that: Two blowing pipes are respectively arranged on the outer sides of lead path A and lead path B. Both blowing pipes are closed at one end and connected to a cooling air source at the other end. A plurality of blowing holes are opened on the inner side wall of the blowing pipe, and the blowing holes are arranged facing the first cavity and the second cavity respectively.

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