CN216881668U

CN216881668U - Quantitative lead injection device for cast welding of storage battery

Info

Publication number: CN216881668U
Application number: CN202123016025.5U
Authority: CN
Inventors: 渠立琛; 陈英明; 张磊; 马天海; 任雨
Original assignee: Jiangsu Xiante Intelligent Equipment Co ltd
Current assignee: Jiangsu Xiante Intelligent Equipment Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-07-05
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a storage battery cast-welding quantitative lead injection device, which comprises a lead feeding mechanism and a cast-welding mould, wherein the cast-welding mould comprises more than one cavity, an induction heating coil is encircled outside the cavity, and the induction heating coil is connected with an alternating current power supply; the lead feeding mechanism comprises a lead wire moving mechanism and a lead wire feeding nozzle; the lead wire feeding nozzle is suspended above the cavity, one end of a lead wire is connected with the power output end of the lead wire moving mechanism, and the other end of the lead wire is movably arranged in the lead wire feeding nozzle; under the power action of the lead wire moving mechanism, the lead wire can be fed into a cavity of the cast welding mold through the wire feeding nozzle. Therefore, the lead feeding mechanism accurately guarantees the required lead liquid amount during tab cast welding, and meanwhile, the induction heating coil continuously heats to guarantee the lead liquid temperature. Compared with the internal channel lead injection method adopted by the traditional cast-weld mould, the method has the advantages that lead is directly melted in the cavity, the residue of lead liquid on the inner wall of the lead injection channel is avoided, and the control precision of the lead injection quantity is high.

Description

Quantitative lead injection device for cast welding of storage battery

Technical Field

The utility model relates to a storage battery cast-welding quantitative lead injection device, and belongs to the field of storage battery production.

Background

In the production process of the storage battery, the tab and the bus bar need to be welded together, a lead liquid is usually poured into a mold cavity of the mold, the tab is heated and cast-welded through the lead liquid, and the lead is melted by using a mold external device mainly in the existing bus bar welding and lead injection mode in the mold cavity, and lead is supplied into the mold through a lead channel or the mold is immersed into a lead pot and taken out. In the first mode, the lead channel in the mould has residual lead slag, and the time for heating solid lead is long; and secondly, in the process of putting the cast-weld mould into the molten lead and taking the cast-weld mould out, the molten lead overflows and is wasted.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a quantitative lead injection device for cast welding of a storage battery. The fixed-length lead wire conveyed to the die cavity of the cast-weld die is melted by adopting an induction heating mode, so that the quantitative lead liquid meeting the temperature required by cast-weld is obtained. Therefore, the utility model directly melts lead in the cavity, avoids the residue of lead liquid on the inner wall of the lead injection channel and has the advantage of high control precision of lead injection quantity.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a storage battery cast-weld quantitative lead injection device comprises a lead feeding mechanism for conveying lead wires and a cast-weld mold for realizing the welding fixation of lugs and a bus bar of a storage battery, wherein the cast-weld mold comprises more than one cavity, an induction heating coil is arranged around the outer side of the cavity, and the induction heating coil is connected with an alternating current power supply; the lead feeding mechanism comprises a lead moving mechanism and a lead feeding nozzle; the lead wire feeding nozzle is suspended above the cavity, one end of a lead wire is connected with the power output end of the lead wire moving mechanism, and the other end of the lead wire is movably arranged in the lead wire feeding nozzle; under the power action of the lead wire moving mechanism, the lead wire can be fed into a cavity of the cast-weld mold through the wire feeding nozzle.

Preferably, the lead feeding mechanism is a rolling and rolling mechanism, and comprises a mounting seat, a servo motor and two wire feeding wheels arranged side by side, wherein the servo motor and the two wire feeding wheels are both mounted on the mounting seat, and a gap allowing lead wires to pass through in a rolling manner is formed between the two wire feeding wheels; the two wire feeding wheels are correspondingly a driving wire feeding wheel and a driven wire feeding wheel; the output shaft of the servo motor is connected with the driving wire feeding wheel, and the lead wire is clamped between the two wire feeding wheels.

Preferably, the mounting seat comprises a mounting vertical plate capable of moving horizontally, the servo motor is mounted on one side of the mounting vertical plate, the two wire feeding wheels are mounted on the other side of the mounting vertical plate, and the driving wire feeding wheel and the servo motor are coaxially arranged.

Preferably, the wire feeding nozzle is an annular member with the inner diameter matched with the outer diameter of the lead wire, the annular member and the wire feeding wheel are mounted on the mounting vertical plate on the same side and are positioned below the wire feeding wheel, and the midpoint of the central connecting line of the two wire feeding wheels is positioned on the axis of the annular member.

Preferably, the cast-weld mold comprises a cast-weld base and more than one bulge part arranged above the cast-weld base, and each bulge part is provided with a cavity at the middle part; the induction heating coil is wound around the periphery of the bulge part; the cast welding base is connected with a power output end of the XYZ three-dimensional driving mechanism.

Preferably, a cooling water channel is arranged in the cast-weld base.

Preferably, the alternating current power supply is a variable frequency alternating current power supply.

Based on the technical purpose, compared with the prior art, the utility model has the following advantages:

the utility model firstly adopts the lead feeding mechanism to input the lead wire with fixed length into the cavity, and then adopts the induction heating coil to heat, so as to promote the lead wire with fixed length in the cavity to melt, thus being capable of more accurately ensuring the lead liquid amount required by the cast welding of the tab, and simultaneously, after the lead wire is melted, the continuous heating of the induction heating coil also ensures the lead liquid temperature. Therefore, compared with the internal channel lead injection method adopted by the traditional cast-weld mold, the method has the advantages that lead is directly melted in the cavity, the residue of lead liquid on the inner wall of the lead injection channel is avoided, and the lead injection quantity control precision is high.

Drawings

FIG. 1 is a schematic structural diagram of a cast-weld quantitative lead injection device for a storage battery (a cast-weld mold is a partial sectional view) according to the utility model;

in the figure: 1. the device comprises a servo motor, 2, a wire feeding nozzle, 3, a wire feeding wheel, 4, a lead wire, 5, an induction heating coil, 6, a cast-weld mold, 7, a boss, 8 and a cooling water channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The relative arrangement of the components and steps, expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

As shown in fig. 1, the battery cast-welding quantitative lead injection device according to the present invention includes a lead feeding mechanism for feeding lead wires 4 and a cast-welding mold 6 for realizing the welding fixation of the tabs and the bus bars of the battery, wherein:

the cast-weld mould 6 comprises a cast-weld base and more than one bulge part 7 arranged above the cast-weld base, the bulge parts are arranged in a columnar shape in the drawing, and a cavity is arranged in the middle of each bulge part 7; and the periphery of the bulge part 7 is surrounded with an induction heating coil 5, the induction heating coil 5 is connected with an alternating current power supply, and the alternating current power supply is a variable frequency alternating current power supply. By changing the frequency of the alternating current power supply, the fixed-length lead wire 4 placed in the cavity can be in a preheating state (low frequency), a high-temperature heating and melting state (high frequency), or a lead liquid melted in the cavity is in a heating and heat-preserving state (high frequency). And a cooling water channel 8 is arranged in the cast-weld base. And cooling after welding is finished is facilitated.

The lead feeding mechanism comprises a lead moving mechanism and a lead feeding nozzle 2; the lead wire feeding nozzle 2 is suspended above the cavity, one end of a lead wire 4 is connected with the power output end of the lead wire moving mechanism, and the other end of the lead wire 4 can be conveyed through the lead wire feeding nozzle 2 in a vertically movable manner; under the power action of the lead wire moving mechanism, the lead wire 4 can be fed into a cavity of the cast welding mold 6 through the wire feeding nozzle 2.

The lead feeding mechanism is a rolling and rolling mechanism and comprises a mounting seat, a servo motor 1 and two wire feeding wheels 3 which are arranged side by side, wherein the servo motor 1 and the two wire feeding wheels 3 are both mounted on the mounting seat, and a gap for allowing a lead wire 4 to pass through in a rolling manner is formed between the two wire feeding wheels 3; the two wire feeding wheels 3 are correspondingly a driving wire feeding wheel and a driven wire feeding wheel; the output shaft of the servo motor 1 is connected with the driving wire feeding wheel, and the lead wire 4 is clamped between the two wire feeding wheels 3. The driving wire feeding wheel is driven to rotate by the power drive of the servo motor 1, so that the lead wires 4 arranged between the two wire feeding wheels are rolled and rolled, and are conveyed into the cavity through the wire feeding nozzle 2.

The mounting seat comprises a mounting vertical plate, a servo motor 1 is mounted on one side of the mounting vertical plate, two wire feeding wheels are mounted on the other side of the mounting vertical plate, the driving wire feeding wheel and the servo motor 1 are coaxially arranged, and a wire feeding nozzle 2 is fixed on the mounting vertical plate and is arranged below the central axis of the two wire feeding wheels; the induction heating coil 5 is also fixed below the mounting vertical plate, and the cast-weld mould 6 is set to be a movable structure (including lifting movement and horizontal movement), namely, the welding base is connected with a power output end of the XYZ three-dimensional driving mechanism, so that any position of the cast-weld mould 6 in a three-dimensional space can be adjusted through the power driving of the XYZ three-dimensional driving mechanism, and therefore the lead feeding mechanism and the induction heating coil 5 can integrally move relative to the cast-weld mould 6, and the polar group cast-weld operation is convenient.

The wire feeding nozzle 2 is an annular component with the inner diameter matched with the outer diameter of the lead wire 4, the annular component and the wire feeding wheel are arranged on the mounting vertical plate at the same side and are positioned below the wire feeding wheel, and the midpoint of the central connecting line of the two wire feeding wheels is positioned on the axis of the annular component.

When the lead feeding mechanism is used, the lead feeding mechanism is arranged above the cavity, the lead wires 4 are quantitatively conveyed to the cavity, the induction heating coil 5 is surrounded outside the cavity, and the cavity is heated to a set temperature and is continuously heated and insulated; the lead wire 4 is molten into lead liquid when contacting the surface of the high-temperature cavity, and in the process of conveying the lead wire 4, the lead wire 4 can be preheated and the power of the induction heating coil 5 can be increased through the frequency modulation of a variable-frequency alternating-current power supply according to the efficiency requirement, so that the lead block in the cavity in an unmelted state can be quickly molten into the lead liquid; a cooling water channel 8 is arranged in the cast-weld mould 6, and the cast-weld mould 6 can be rapidly cooled after cast welding.

Claims

1. A storage battery cast-weld quantitative lead injection device comprises a cast-weld mold for realizing the welding fixation of a lug and a bus bar of a storage battery, and is characterized by also comprising a lead feeding mechanism for feeding lead wires; wherein:

the cast-weld mould comprises more than one cavity, and an induction heating coil is encircled outside the cavity and is connected with an alternating current power supply;

the lead feeding mechanism comprises a lead moving mechanism and a lead feeding nozzle;

the lead wire feeding nozzle is suspended above the cavity, one end of a lead wire is connected with the power output end of the lead wire moving mechanism, and the other end of the lead wire is movably arranged in the lead wire feeding nozzle; under the power action of the lead wire moving mechanism, the lead wire can be fed into a cavity of the cast-weld mold through the wire feeding nozzle.

2. The cast-weld quantitative lead injection device for the storage batteries according to claim 1, wherein the lead feeding mechanism is a rolling and rolling mechanism, and comprises a mounting seat, a servo motor and two wire feeding wheels arranged side by side, wherein:

the servo motor and the two wire feeding wheels are both arranged on the mounting seat, and a gap allowing lead wires to be rolled and pass exists between the two wire feeding wheels; the two wire feeding wheels are correspondingly a driving wire feeding wheel and a driven wire feeding wheel; the output shaft of the servo motor is connected with the driving wire feeding wheel, and the lead wire is clamped between the two wire feeding wheels.

3. The device for cast-welding and quantitatively injecting lead into the storage battery as claimed in claim 2, wherein the mounting seat comprises a mounting vertical plate, a servo motor is mounted on one side of the mounting vertical plate, two wire feeding wheels are mounted on the other side of the mounting vertical plate, the driving wire feeding wheel and the servo motor are coaxially arranged, and the wire feeding nozzle and the induction coil are connected with the mounting seat.

4. The device for cast-welding and quantitatively injecting lead into the storage battery as claimed in claim 3, wherein the wire feeding nozzle is an annular member with an inner diameter matched with the outer diameter of the lead, the annular member is mounted on the mounting vertical plate on the same side as the wire feeding wheel and is positioned below the wire feeding wheel, and the middle point of the central connecting line of the two wire feeding wheels is positioned on the axis of the annular member.

5. The storage battery cast-welding quantitative lead injection device according to claim 3 or 4, wherein the cast-welding mold comprises a cast-welding base and more than one bulge part arranged above the cast-welding base, and each bulge part is provided with a cavity at the middle position; the induction heating coil is wound around the periphery of the bulge part; the cast welding base is connected with a power output end of the XYZ three-dimensional driving mechanism.

6. The battery cast-weld quantitative lead injection device according to claim 5, wherein the cast-weld base is provided with a cooling water channel.

7. The battery cast-weld quantitative lead injection device according to claim 1, wherein the alternating current power supply is a variable frequency alternating current power supply.