An automatic welding device for battery connection terminals

Abstract

The present application discloses an automatic welding device for a wiring terminal of a storage battery, including: a base, a lifting platform, a material box, a thrust assembly, a welding nozzle, a pin conveying module, and a pin box. Among them, the lifting platform is installed on the base and is used to drive the material box, the thrust assembly, and the welding nozzle to move up and down; the pin box is used to store pins; the pin conveying module is used to take out the pins stored in the pin box and convey them to the lower part of the welding nozzle; the material box is used to store welding materials; there are multiple welding nozzles, and each welding nozzle is communicated with the material box; in the present application, the metal is heated to a molten state by a heater in the material box, and then the molten metal is ejected from the welding nozzle to the welding position. After the metal cools down, the pins are welded to the electrodes. In this way, multiple storage batteries can be welded with multiple pins simultaneously according to a specified arrangement method, greatly improving the working efficiency.

Description

Technical Field

[0001] The present application relates to a welding device, and in particular to an automatic welding device for wiring terminals of storage batteries. Background Art

[0002] Existing wiring terminals of storage batteries are generally welded by a spot welder. The spot welder adopts the principle of double-sided double-point overcurrent welding. During operation, two electrodes press the workpiece so that two layers of metal form a certain contact resistance under the pressure of the two electrodes, and when the welding current flows from one electrode to the other electrode, instantaneous hot melting connection is formed at the two contact resistance points. Since a high-voltage electrode needs to be connected during spot welding, during automatic welding, only one pin can be welded at a time. And during automatic welding, the requirement for positioning accuracy is relatively high, and as a result, the cost of the welding device is high. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the present application provides an automatic welding device for wiring terminals of storage batteries.

[0004] An automatic welding device for wiring terminals of storage batteries includes: a base, a lifting platform, a material box, a thrust assembly, a welding nozzle, a pin conveying module, and a pin box. Among them, the lifting platform is installed on the base and is used to drive the material box, the thrust assembly, and the welding nozzle to move up and down; the pin box is used to store pins; the pin conveying module is used to take out the pins stored in the pin box and convey them to the lower part of the welding nozzle; the material box is used to store welding materials; there are multiple welding nozzles, and each welding nozzle is communicated with the material box; the thrust assembly is used to extrude the molten metal in the welding nozzle.

[0005] Further, a groove for installing a conveyor belt is also provided on the base.

[0006] Further, the lifting platform includes a lead screw and a lead nut.

[0007] Further, a heater is provided in the material box.

[0008] Further, the welding nozzle includes: a sleeve, a fixed rod, a connecting pipe, a piston, a pressure chamber, and a sealing needle. The fixed rod is fixedly connected to the material box, the sleeve can move up and down, the piston and the sealing needle are located on the fixed rod, and the pressure chamber is located in the sleeve; when the sleeve moves to a specified position, the piston is in sealing cooperation with the pressure chamber, and a spray hole with a clearance fit with the sealing needle is provided at the lower part of the sleeve corresponding to the pressure chamber.

[0009] Further, the thrust assembly includes a bracket, a push plate, and a crank mechanism. The push plate is installed inside the bracket and can move up and down. The output shaft of the crank mechanism is connected to the push plate. A support plate is provided on the sleeve, and the welding nozzle is fixedly connected to the push plate through the support plate.

[0010] Further, a heating tube is also provided inside the sleeve.

[0011] Further, the pin conveying module includes a rotating rod and a magnetic block. The rotating rod is rotatable, and the magnetic block is installed at the top of the rotating rod.

[0012] Further, the pin box includes a box body, a guide rail, and an elastic baffle. The guide rail is provided on the box body, and the elastic baffle is installed on the guide rail.

[0013] Technical effects and advantages of the present application:

[0014] In the present application, the metal is heated to a molten state by the heater in the material box, and then the molten metal is ejected to the welding position through the welding nozzle. After the metal cools, the pins are welded to the electrodes. In this way, multiple storage batteries can be welded with multiple pins simultaneously according to the specified arrangement, greatly improving the working efficiency.

[0015] Other features and advantages of the present application will be described in the subsequent specification. Moreover, some of them will become obvious from the specification or be understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows a schematic structural diagram of an automatic welding device for a wiring terminal of a storage battery;

[0017] Figure 2 Shows a schematic structural diagram of a thrust assembly in an automatic welding device for a wiring terminal of a storage battery;

[0018] Figure 3 Shows a schematic structural diagram of a welding nozzle in an automatic welding device for a wiring terminal of a storage battery;

[0019] Figure 4 Shows a cross-sectional view of a welding nozzle in an automatic welding device for a wiring terminal of a storage battery;

[0020] Figure 5 Shows a schematic connection structure diagram of a welding nozzle and a thrust assembly in an automatic welding device for a wiring terminal of a storage battery;

[0021] Figure 6 Shows a schematic structural diagram of a pin conveying module and a pin box in an automatic welding device for a wiring terminal of a storage battery;

[0022] In the figure: 1 - base, 2 - lifting platform, 3 - material box, 4 - thrust assembly, 41 - bracket, 42 - push plate, 43 - crank mechanism, 5 - welding nozzle, 51 - sleeve, 52 - support plate, 53 - fixing rod, 54 - connecting pipe, 55 - electrode, 56 - piston, 57 - pressure chamber, 58 - sealing needle, 59 - heating pipe, 6 - pin conveying module, 61 - rotating rod, 62 - magnetic block, 7 - pin box, 71 - box body, 72 - guide rail, 73 - elastic baffle. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0024] In addition, in the invention, terms such as "first", "second" and other similar words do not intend to imply any order, quantity and importance, but are only used to distinguish different elements. Terms such as "upper", "lower", "left", "right" and other similar words are only the positional relationships in the drawings.

[0025] As Figure 1 shown, an automatic welding device for a wiring terminal of a storage battery provided by an embodiment of the present application includes: a base 1, a lifting platform 2, a material box 3, a thrust assembly 4, a welding nozzle 5, a pin conveying module 6 and a pin box 7. Among them, the base 1 is a support member of the overall device; the lifting platform 2 is installed on the base 1 and is used to drive the material box 3, the thrust assembly 4 and the welding nozzle 5 to move up and down; the pin box 7 is used to store pins; the pin conveying module 6 is used to take out the pins stored in the pin box 7; the material box 3 is used to store welding materials; a plurality of welding nozzles 5 are provided, and each welding nozzle 5 is communicated with the material box 3. During welding, each welding nozzle 5 corresponds to a welding position; the thrust assembly 4 is used to extrude the molten metal in the welding nozzle 5, and the extruded molten metal drops to the welding position.

[0026] Among them, in this embodiment, a groove for installing a conveyor belt is further provided on the base 1. After installing the conveyor belt, the storage battery is conveyed to directly below the material box 3 through the conveyor belt for welding work;

[0027] In this embodiment, the power component used by the lifting platform 2 to drive the material box 3, the thrust assembly 4 and the welding nozzle 5 to move up and down is a lead screw. The lead screw is rotated by a motor, so that the nut cooperating with the lead screw moves up and down, thereby driving the material box 3, the thrust assembly 4 and the welding nozzle 5 to move up and down;

[0028] In this embodiment, a heater is provided in the material box 3 for melting the welding material stored in the material box 3;

[0029] In an embodiment of the present application, as Figure 3 and Figure 4 shown, the welding nozzle 5 includes: a sleeve 51, a fixing rod 53, a connecting pipe 54, a piston 56, a pressure chamber 57, and a sealing needle 58. Among them, the fixing rod 53 is fixedly connected to the material box 3, the sleeve 51 can move up and down, the piston 56 and the sealing needle 58 are located on the fixing rod 53, and the pressure chamber 57 is located inside the sleeve 51; in the initial position, the piston 566 is located above the pressure chamber 57. When the sleeve 51 moves upward, the piston 56 starts to cooperate with the pressure chamber 57, and the molten metal in the pressure chamber 57 is pushed out through the piston 56. The molten metal drips onto the welding position along the sealing needle 58. Then, the entire welding nozzle 5 is lifted by the lifting platform 2. Immediately afterwards, the sleeve 51 returns to the initial position to complete the welding operation. Among them, the connecting pipe 54 is used to communicate with the material box 3. An outlet is provided at the bottom of the material box 3 that can be inserted into the connecting pipe 54, and a sealing treatment is performed between the outlet and the connecting pipe 54. A spray hole that has a clearance fit with the sealing needle 58 is provided in the sleeve 51 corresponding to the lower part of the pressure chamber 57. Under the action of surface tension, the molten metal will not overflow from the gap between the sealing needle 58 and the spray hole under normal pressure.

[0030] In the above embodiment, the discharging process of the welding nozzle 5 is realized by moving the sleeve 51. Therefore, as Figure 4 and Figure 5 shown, in an embodiment of the present application, the thrust assembly 4 adopts a crank mechanism 43 as the power transmission assembly. The crank mechanism 43 is driven by a motor, thereby driving the push plate 42 to move up and down in the bracket 41; a support plate 52 is provided on the sleeve 51, and the welding nozzle 5 is fixedly connected to the push plate 42 through the support plate 52, thereby realizing power transmission.

[0031] On the other hand, in an embodiment of the present application, to prevent the molten metal from cooling prematurely, a heating pipe 59 is further provided in the sleeve 51. The two poles of the heating pipe 59 are connected to two electrodes 55 provided below the support plate 52 through wires, and a circuit for supplying power to the electrodes 55 is provided on the push plate 42.

[0032] In an embodiment of the present application, as Figure 6As shown in the figure, the pin conveying module 6 includes a rotating rod 61 and a magnetic block 62, where the rotating rod 61 is rotatable and the magnetic block 62 is installed at the top of the rotating rod 61; the pin box 7 includes a box body 71, a guide rail 72, and an elastic baffle 73. The guide rail 72 is arranged on the box body 71, and the elastic baffle 73 is installed on the guide rail 72 to block the pins in the guide rail 72 and prevent the pins from falling out of the guide rail 72; a groove for accommodating the elastic baffle 73 is provided in the guide rail 72, and an elastic member is provided in the groove. The elastic member applies an upward force to the elastic baffle 73. When the rotating rod 61 drives the magnetic block 62 to rotate and the magnetic block 62 contacts the elastic baffle 73, the magnetic block 62 presses down the elastic baffle 73 and simultaneously adsorbs the pins located in the guide rail 72. Subsequently, the rotating rod 61 drives the magnetic block 62 to rotate towards the initial position, thus completing the pin conveying work.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic welding device for the wiring terminal of a storage battery, characterized in that, Comprising: A base (1), a lifting platform (2), a material box (3), a thrust assembly (4), a welding nozzle (5), a pin conveying module (6), and a pin box (7). Among them, the lifting platform (2) is installed on the base (1) and is used to drive the material box (3), the thrust assembly (4), and the welding nozzle (5) to move up and down; the pin box (7) is used to store pins; the pin conveying module (6) is used to take out the pins stored in the pin box (7) and convey them below the welding nozzle (5); the material box (3) is used to store welding materials; a plurality of welding nozzles (5) are provided, and each welding nozzle (5) is communicated with the material box (3); the thrust assembly (4) is used to extrude the molten metal in the welding nozzle (5). A heater is provided inside the material box (3). The welding nozzle (5) includes: a sleeve (51), a fixing rod (53), a connecting pipe (54), a piston (56), a pressure chamber (57), and a sealing needle (58). The fixing rod (53) is fixedly connected to the material box (3), the sleeve (51) can move up and down, the piston (56) and the sealing needle (58) are located on the fixing rod (53), and the pressure chamber (57) is located inside the sleeve (51); when the sleeve (51) moves to a specified position, the piston (56) is in sealing cooperation with the pressure chamber (57), and a spray hole with a clearance fit with the sealing needle (58) is provided at the lower part of the sleeve (51) corresponding to the pressure chamber (57). The thrust assembly (4) includes a bracket (41), a push plate (42), and a crank mechanism (43). Among them, the push plate (42) is installed inside the bracket (41) and the push plate (42) can move up and down, and the output shaft of the crank mechanism (43) is connected to the push plate (42); a support plate (52) is provided on the sleeve (51), and the welding nozzle (5) is fixedly connected to the push plate (42) through the support plate (52).

2. The automatic welding device for the wiring terminal of a storage battery according to claim 1, characterized in that, A groove for installing a conveyor belt is further provided on the base (1).

3. The automatic welding device for the wiring terminal of a storage battery according to claim 1, wherein The lifting platform (2) includes a lead screw and a nut.

4. An automatic welding device for a wiring terminal of a storage battery according to claim 1, characterized in that, A heating pipe (59) is further provided inside the sleeve (51).

5. The automatic welding device for the wiring terminal of a storage battery according to claim 1, characterized in that, The pin conveying module (6) includes: a rotating rod (61) and a magnetic block (62). Among them, the rotating rod (61) can rotate, and the magnetic block (62) is installed at the top of the rotating rod (61).

6. The automatic welding device for the wiring terminal of a storage battery according to claim 1, wherein, The pin box (7) includes a box body (71), a guide rail (72), and an elastic baffle (73). Among them, the guide rail (72) is provided on the box body (71), and the elastic baffle (73) is installed on the guide rail (72).

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