Automatic welding device for wiring terminal for storage battery

Abstract

The automatic welding device comprises a base, a lifting platform, a material box, a thrust assembly, a welding nozzle, a pin conveying module and a pin box, the lifting platform is installed on the base and used for driving the material box, the thrust assembly and the welding nozzle to move up and down; the pin box is used for storing pins; the pin conveying module is used for taking out the pins stored in the pin box and conveying the pins to the position below the welding nozzle. The material box is used for storing welding materials; a plurality of welding nozzles are arranged, and each welding nozzle is communicated with the material box; according to the welding device, metal is heated to be in a molten state through the heater in the material box, then molten metal is sprayed to the welding position through the welding nozzle, and after the metal is cooled, welding of the pins and the electrodes is completed; through the mode, a plurality of pins can be simultaneously welded on a plurality of storage batteries according to a specified arrangement mode, so that the working efficiency is greatly improved.

Description

Technical Field

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

[0002] The existing battery terminals are generally welded by spot welding machines. The spot welding machine adopts the principle of double-sided double-point overcurrent welding. When working, the two electrodes pressurize the workpiece so that the 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, an instantaneous heat weld is formed at the two contact resistance points. However, since the spot welding machine needs to connect high-voltage electrodes during welding, only one pin can be welded at a time during automatic welding. In addition, during automatic welding, the positioning accuracy requirements are high, and the welding equipment cost is high. Summary of the invention

[0003] In view of the problems existing in the prior art, the present application provides an automatic welding device for battery terminal blocks.

[0004] An automatic welding device for battery terminals comprises: a base, a lifting platform, a material box, a thrust assembly, a welding nozzle, a pin conveying module and a pin box, wherein 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 bottom of the welding nozzle; the material box is used to store welding materials; there are multiple welding nozzles, and each of the welding nozzles is connected to the material box; the thrust assembly is used to squeeze out the molten metal in the welding nozzle.

[0005] Furthermore, the base is provided with a groove for installing a conveyor belt.

[0006] Furthermore, the lifting platform includes a screw rod and a nut.

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

[0008] Furthermore, the welding nozzle includes: a sleeve, a fixed rod, a connecting tube, 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 sealed in cooperation with the pressure chamber, and a spray hole that cooperates with the sealing needle gap is provided at the lower part of the corresponding pressure chamber in the sleeve.

[0009] Furthermore, the thrust assembly includes a bracket, a push plate and a crank mechanism, wherein the push plate is installed in the bracket and can move up and down, and 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] Furthermore, a heating tube is also provided in the sleeve.

[0011] Furthermore, the pin conveying module includes: a rotating rod and a magnetic block, wherein the rotating rod is rotatable and the magnetic block is installed on the top end of the rotating rod.

[0012] Furthermore, the pin box includes a box body, a guide rail, and an elastic baffle, wherein the guide rail is arranged on the box body, and the elastic baffle is installed on the guide rail.

[0013] Technical effects and advantages of this application: In the present application, the metal is heated to a molten state by a heater in a material box, and then the molten metal is sprayed to the welding position by a welding nozzle. After the metal cools down, the welding of the pins and the electrodes is completed. In this way, multiple batteries can be arranged in a specified manner, and multiple pins can be welded at the same time, which greatly improves work efficiency.

[0014] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of an automatic welding device for battery terminals is shown; Figure 2 A schematic structural diagram of a thrust assembly in an automatic welding device for battery terminals is shown; Figure 3 A schematic structural diagram of a welding nozzle in an automatic welding device for battery terminals is shown; Figure 4 A cross-sectional view of a welding nozzle in an automatic welding device for battery terminals is shown; Figure 5 A schematic diagram of the connection structure between a welding nozzle and a thrust assembly in an automatic welding device for battery terminals is shown; Figure 6 A schematic structural diagram of a pin conveying module and a pin box in an automatic welding device for battery terminals is shown; 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-fixed rod, 54-connecting pipe, 55-electrode, 56-piston, 57-pressure chamber, 58-sealing needle, 59-heating tube, 6-pin conveying module, 61-rotating rod, 62-magnetic block, 7-pin box, 71-box, 72-guide rail, 73-elastic baffle. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] In addition, in the invention, the terms "first", "second" and other similar words are not intended to imply any order, quantity and importance, but are merely used to distinguish different elements, and the terms "upper", "lower", "left", "right" and other similar words are merely positional relationships in the drawings.

[0018] like Figure 1 As shown, an embodiment of the present application provides an automatic welding device for battery terminal blocks, 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, wherein the base 1 serves as a support member for the entire 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 connected to the material box 3, and during welding, each welding nozzle 5 corresponds to a welding position; the thrust assembly 4 is used to squeeze out the molten metal in the welding nozzle 5, and the extruded molten metal drips to the welding position.

[0019] In this embodiment, a groove for installing a conveyor belt is also provided on the base 1. After the conveyor belt is installed, the battery is transported to the bottom of the material box 3 by the conveyor belt for welding. In this embodiment, the lifting platform 2 drives the material box 3, the thrust assembly 4 and the welding nozzle 5 to move up and down. The power assembly used is a screw rod, and the motor drives the screw rod to rotate, so that the nut matched with the screw rod moves up and down, thereby driving the material box 3, the thrust assembly 4 and the welding nozzle 5 to move up and down; In this embodiment, a heater is provided in the material box 3 for melting the welding material stored in the material box 3; In one embodiment of the present application, Figure 3 and Figure 4 As shown, the welding nozzle 5 includes: a sleeve 51, a fixed rod 53, a connecting pipe 54, a piston 56, a pressure chamber 57, and a sealing needle 58, wherein the fixed 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 fixed rod 53, and the pressure chamber 57 is located in 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 and the pressure chamber 57 begin to cooperate, and the metal liquid in the pressure chamber 57 is pushed out by the piston 56, and the metal liquid drips to the welding position along the sealing needle 58, and then the entire welding nozzle 5 is lifted by the lifting platform 2, and then the sleeve 51 returns to the initial position to complete the welding action. Among them, the connecting pipe 54 is used to communicate with the material box 3, and the bottom of the material box 3 is provided with a discharge port that can be inserted into the connecting pipe 54, and the discharge port and the connecting pipe 54 are sealed. A spray hole is provided below the corresponding pressure chamber 57 in the sleeve 51 and is clearance-matched with the sealing needle 58 . Under the action of tension, the molten metal will not overflow from the gap between the sealing needle 58 and the spray hole under normal pressure.

[0020] In the above embodiment, the discharge process of the welding nozzle 5 is realized by moving the sleeve 51. Figure 4 and Figure 5 As shown, in one embodiment of the present application, the thrust assembly 4 adopts a crank mechanism 43 as a power transmission assembly, and 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.

[0021] On the other hand, in one embodiment of the present application, in order to prevent the molten metal from cooling prematurely, a heating tube 59 is further provided in the sleeve 51, and the two poles of the heating tube 59 are connected to two electrodes 55 arranged under the support plate 52 through wires, and a circuit for powering the electrodes 55 is provided on the push plate 42.

[0022] In one embodiment of the present application, Figure 6As shown, the pin conveying module 6 includes: a rotary rod 61 and a magnetic block 62, wherein the rotary rod 61 is rotatable and the magnetic block 62 is installed at the top end of the rotary rod 61; the pin box 7 includes a box body 71, a guide rail 72, and an elastic baffle 73, wherein the guide rail 72 is arranged on the box body 71, and the elastic baffle 73 is installed on the guide rail 72, which is used to block the pins in the guide rail 72 to prevent the pins from falling out of the guide rail 72; a groove that can accommodate the elastic baffle 73 is provided in the guide rail 72, and an elastic member is provided in the groove, and the elastic member applies an upward force to the elastic baffle 73. When the rotary rod 61 drives the magnetic block 62 to rotate, after the magnetic block 62 contacts the elastic baffle 73, the magnetic block 62 presses down the elastic baffle 73 and absorbs the pins in the guide rail 72 at the same time, and then the rotary rod 61 drives the magnetic block 62 to rotate to the initial position, thereby completing the pin conveying work.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned 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. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic welding device for battery terminals, characterized in that: include: 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), wherein 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 to the bottom of the welding nozzle (5); the material box (3) is used to store welding materials; a plurality of welding nozzles (5) are provided, and each of the welding nozzles (5) is connected to the material box (3); the thrust assembly (4) is used to squeeze out the molten metal in the welding nozzle (5).

2. The automatic welding device for battery terminals according to claim 1, characterized in that: The base (1) is also provided with a groove for installing a conveyor belt.

3. The automatic welding device for battery terminals according to claim 1, characterized in that: The lifting platform (2) comprises a screw rod and a screw nut.

4. The automatic welding device for battery terminals according to claim 1, characterized in that: A heater is provided in the material box (3).

5. The automatic welding device for battery terminals according to claim 1, characterized in that: The welding nozzle (5) comprises: 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 in the sleeve (51); when the sleeve (51) moves to a specified position, the piston (56) and the pressure chamber (57) are sealed and matched; and a spray hole that is gap-matched with the sealing needle (58) is provided in the sleeve (51) below the corresponding pressure chamber (57).

6. The automatic welding device for battery terminals according to claim 5, characterized in that: The thrust assembly (4) comprises a bracket (41), a push plate (42) and a crank mechanism (43), wherein the push plate (42) is mounted in the bracket (41) and can move up and down, and an 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) via the support plate (52).

7. The automatic welding device for battery terminals according to claim 6, characterized in that: A heating tube (59) is also provided in the sleeve (51).

8. The automatic welding device for battery terminals according to claim 1, characterized in that: The pin conveying module (6) comprises: a rotating rod (61) and a magnetic block (62), wherein the rotating rod (61) is rotatable and the magnetic block (62) is mounted on the top end of the rotating rod (61).

9. The automatic welding device for battery terminals according to claim 1, characterized in that: The pin box (7) comprises a box body (71), a guide rail (72), and an elastic baffle (73), wherein the guide rail (72) is arranged on the box body (71), and the elastic baffle (73) is installed on the guide rail (72).

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