阅读说明：本技术 一种新型铅酸蓄电池汇流排接线端子焊接工艺 (Novel welding process for bus bar wiring terminal of lead-acid storage battery ) 是由 林良洪 罗金志 于 2020-12-31 设计创作，主要内容包括：本发明属于焊接工艺的技术领域,尤其是一种新型铅酸蓄电池汇流排接线端子焊接工艺,现提出以下方案,具体包括以下工艺顺序及步骤：工艺顺序:S1：先进行第一排汇流排焊接；S2：然后进行第二排汇流排焊接；S3：然后进行接线端子焊接；S4：最后进行极群压入电池塑壳；具体的焊接步骤如下：步骤一；合模：电池进入焊接工位。本发明型铅酸蓄电池汇流排极柱端子焊接机其目的旨在克服现有技术存在的不足,通过焊接的方式来解决铸焊工人劳动强度大,工作疲劳,炸铅危险等问题,同时焊接接线端子,直接将后道放端子焊端子直接合并到前道工艺来,简化操作,降低人工成本,提高生产效率。(The invention belongs to the technical field of welding processes, in particular to a novel welding process for a bus bar wiring terminal of a lead-acid storage battery, and the following scheme is proposed, and the welding process specifically comprises the following process sequences and steps: the process sequence is S1: firstly, welding a first row of busbars; s2: then welding a second bus bar; s3: then, welding a wiring terminal; s4: finally, pressing the pole group into a battery plastic shell; the specific welding steps are as follows: step one; die assembly: the battery enters a welding station. The invention discloses a welding machine for bus-bar pole terminals of a lead-acid storage battery, and aims to overcome the defects in the prior art, solve the problems of high labor intensity, work fatigue, lead explosion danger and the like of cast-weld workers in a welding mode, and simultaneously weld connecting terminals, directly combine the welding terminals of the rear terminal placing into the front process, simplify the operation, reduce the labor cost and improve the production efficiency.)

1. A novel welding process for a bus bar wiring terminal of a lead-acid storage battery is characterized by specifically comprising the following process sequences and steps:

the process sequence is as follows:

s1: firstly, welding a first row of busbars;

s2: then welding a second bus bar;

s3: then, welding a wiring terminal;

s4: finally, pressing the pole group into a battery plastic shell;

the specific welding steps are as follows:

step one; die assembly: the battery enters a welding station, the first welding comb plate and the second welding comb plate are matched and inserted into a tab space of the battery, and the middle pressure strip is pressed downwards and is positioned between the first welding comb plate and the second welding comb plate to form a welding cavity with the first welding comb plate and the second welding comb plate;

step two; welding preparation: placing the terminal parts, namely sequentially installing the two terminal parts in a welding cavity, moving a welding gun and a wire feeding mechanism to the position above a lug of a battery to be welded, and setting process parameters before welding;

step three; and (3) welding the bus bar, namely the connecting terminal: discharging by using a large current generated by a welding gun, and fusing two binding post parts and the lugs at the positions of two welding binding posts of the battery into a whole by using a welding wire to form the two binding posts on the battery;

step four; demolding: the first welding comb plate and the second welding comb plate respectively move away from and away from the opposite two directions, the middle pressing strip moves upwards to realize battery demoulding, the welded battery is transferred to the next procedure, and the welding station prepares for welding of the next battery;

step five; repeating the steps from one to four, and repeating the steps to realize the welding of the battery.

2. The novel welding process of the bus bar terminal of the lead-acid storage battery as claimed in claim 1, wherein in the first step, the battery of the welding station is in a half-groove state after the groove entering machine enters the groove, the electrode group has an upward tab, and when the middle pressing strip, the first welding comb plate and the second welding comb plate form a welding cavity, the tab is higher than the upper plane of the welding cavity.

3. The novel welding process for the bus bar connecting terminal of the lead-acid storage battery as claimed in claim 2, wherein in the second step, the setting of welding process parameters is performed before welding, and the welding process parameters comprise: the welding gun position, the wire feeding speed and the heating parameters, wherein the welding gun position mainly comprises the moving speed of the welding gun, the static position of the welding gun and the static time of the welding gun, the moving speed of the welding gun is 2-5mm/s during working, and the static time of the welding gun is 0.5-1 s; the wire feeding speed comprises a wire feeding position and wire feeding time, wherein the distance between the wire feeding position and a gun mouth of a welding gun is 2-5mm, and the wire feeding time is 0.5-1 s; the heating parameters comprise the welding current and the on-off time of the welding gun, the welding current of the welding gun is 30-60A, the on-off time is 1-2s of electrification, the power is off for 0.5-1s, and continuous electrification welding can be realized on the premise of ensuring the quality.

4. The novel welding process of the bus bar and the wire connecting terminal of the lead-acid storage battery is characterized in that in the second step, the bus bar and the wire connecting terminal of the storage battery are welded, the bus bar is a finished lead bar, the wire connecting terminal is also a standard finished product, and in the second step, a welding gun and a wire feeding mechanism are moved to a position above a row of tabs to be welded, wherein the distance between the muzzle of the welding gun and the tabs to be welded of the battery is 2-5 mm.

5. The novel welding process of the bus bar connecting terminal of the lead-acid storage battery as claimed in claim 1, wherein the bus bar welding in the third step adopts intermittent discharge welding, the on-off time of the welding gun is 1-2s when the welding gun is heated, and the power is off for 0.5-1s, the welding wire adopted in the welding in the third step is lead alloy wire, when in welding, the first bus bar welding is firstly carried out on a row of to-be-welded lugs of the battery, then the second bus bar is welded on the same welding module of the second station, and after the welding is completed, the third station is reached to carry out the welding of the positive and negative electrode connecting terminals.

6. The novel welding process for the bus bar terminal of the lead-acid storage battery as claimed in claim 1, wherein the cavity grooves of the first welding comb plate and the second welding comb plate are formed by a plurality of tooth-shaped strips, the tooth-shaped strips are like the teeth of a comb, and are mainly used for avoiding the tabs, the tooth-shaped strips are inserted into the free spaces of the tabs of the battery during operation, and the middle pressing strips are folded to form the welding cavity for facilitating welding.

7. The novel welding process for the bus bar terminal of the lead-acid storage battery as claimed in claim 1, wherein the bus bar and the plate group of the lead-acid storage battery are connected by using argon arc welding.

8. The novel lead-acid storage battery busbar terminal welding process according to claim 7, wherein innovation is made at the position of the lead-acid storage battery pole, the original pole is cast-welded to the next procedure to place the terminal, manual welding is performed, the terminal is directly welded on the busbar in a welding mode, the next procedure is saved, and production cost is saved.

9. The novel lead-acid storage battery bus bar terminal welding process as claimed in claim 1, wherein the storage battery is driven by a motor to convey materials from the previous process to the current process, a cylinder is driven to position the storage battery on an assembly line, and the motor is driven to complete a welding path of the welding gun along the bus bar.

Technical Field

The invention relates to the technical field of welding processes, in particular to a novel welding process for a bus bar wiring terminal of a lead-acid storage battery.

Background

In the production process of the storage battery in the prior art, generally, a pole group is manually placed into a clamp by a worker, and then the clamp is conveyed to a cast-weld machine through a cast-weld conveyor to cast-weld a busbar and a pole; or the pole group is plugged into the plastic shell through a slot-entering machine and is transported to a cast-weld machine for cast-weld through the turnover plate. The welding of the lead-acid storage battery, in particular to the welding of a binding post of the lead-acid storage battery for an electric vehicle, refers to a process of connecting a positive plate tab of one side of a battery plate group and a negative plate tab of the other side of the battery plate group in series after melting to realize the welding of the binding post into a whole. The manual welding is firstly adopted, the tab of the pole piece is melted after gas is selected and burnt at high temperature, the welding flux is added, and then the cooling forming is carried out, so that the welding of the binding post is realized. With the improvement of automation level, the cast welding method is generally adopted in the market at present, and the welding of the battery wiring terminal is realized by matching with an automatic or semi-automatic welding machine.

The cast-weld method is that the alloy lead is heated and melted into liquid state in a lead pot, the liquid lead is added into a welding mold cavity, then the battery is placed upside down, the pole ear is inserted into the lead liquid mold cavity downwards, so that the pole pieces are melted into a whole, and the welding of the binding post is realized. However, the manual gas welding process has the defects that: the labor intensity is high, the welding environment is poor, and the physical health of operators is not facilitated. The welding quality consistency is poor, and the battery quality controllability is poor. The automatic or semi-automatic cast welding has the same defect of high labor intensity, and simultaneously, the energy consumption is higher and the welding cost is higher because the lead liquid is heated by heat preservation all the time. The welding environment can not be relatively isolated, lead dust pollution is large, and the health of operators is influenced by the problems of lead explosion danger and the like.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a novel welding process for a bus bar wiring terminal of a lead-acid storage battery.

The invention provides a novel welding process for a bus bar wiring terminal of a lead-acid storage battery, which specifically comprises the following process sequences and steps:

the process sequence is as follows:

s1: firstly, welding a first row of busbars;

s2: then welding a second bus bar;

s3: then, welding a wiring terminal;

s4: finally, pressing the pole group into a battery plastic shell;

the specific welding steps are as follows:

step one; die assembly: the battery enters a welding station, the first welding comb plate and the second welding comb plate are matched and inserted into a tab space of the battery, and the middle pressure strip is pressed downwards and is positioned between the first welding comb plate and the second welding comb plate to form a welding cavity with the first welding comb plate and the second welding comb plate;

step two; welding preparation: placing the terminal parts, namely sequentially installing the two terminal parts in a welding cavity, moving a welding gun and a wire feeding mechanism to the position above a lug of a battery to be welded, and setting process parameters before welding;

step three; and (3) welding the bus bar, namely the connecting terminal: discharging by using a large current generated by a welding gun, and fusing two binding post parts and the lugs at the positions of two welding binding posts of the battery into a whole by using a welding wire to form the two binding posts on the battery;

step four; demolding: the first welding comb plate and the second welding comb plate respectively move away from and away from the opposite two directions, the middle pressing strip moves upwards to realize battery demoulding, the welded battery is transferred to the next procedure, and the welding station prepares for welding of the next battery;

step five; repeating the above processes, and repeating the steps in the above way to realize the welding of the battery.

Preferably, the battery of the welding station in the first step is in a half-groove entering state after the groove entering machine enters the groove, the electrode group electrode lug faces upwards, and when the middle pressing strip, the first welding comb plate and the second welding comb plate form a welding cavity, the electrode lug is higher than the upper flat of the welding cavity.

Preferably, in the second step, welding process parameters are set before welding, and the welding process parameters include: the welding gun position, the wire feeding speed and the heating parameters, wherein the welding gun position mainly comprises the moving speed of the welding gun, the static position of the welding gun and the static time of the welding gun, the moving speed of the welding gun is 2-5mm/s during working, and the static time of the welding gun is 0.5-1 s; the wire feeding speed comprises a wire feeding position and wire feeding time, wherein the distance between the wire feeding position and a gun mouth of a welding gun is 2-5mm, and the wire feeding time is 0.5-1 s; the heating parameters comprise the welding current and the on-off time of the welding gun, the welding current of the welding gun is 30-60A, the on-off time is 1-2s of electrification, the power is off for 0.5-1s, and continuous electrification welding can be realized on the premise of ensuring the quality.

Preferably, the second step is used for welding a busbar and a terminal of the storage battery, the busbar is a finished lead bar, and the terminal is also a standard finished product. And in the second step, the welding gun and the wire feeding mechanism move to the position above the row of the tabs to be welded, and the distance between the muzzle of the welding gun and the tabs to be welded of the battery is 2-5 mm.

Preferably, the busbar welding in the third step adopts intermittent discharge welding, and the on-off time is 1-2s of electrification and 0.5-1s of outage when the welding gun is heated. And in the third step, the welding wire is a lead alloy wire, when welding, a first row of busbar welding is firstly carried out on a row of to-be-welded lugs of the battery, then a second row of busbar is welded on the same welding module of the second station, and after the second row of busbar welding is finished, the second station is reached to carry out welding on the positive and negative connecting terminals.

Preferably, the welding process is used for connecting the bus bar of the lead-acid storage battery with the pole group by using an argon arc welding mode.

Preferably, the lead-acid storage battery pole column is innovated, the original pole column is cast and welded to a subsequent procedure to place the wiring terminal, manual welding is directly changed into a method of directly welding the wiring terminal on the busbar through a welding mode, the subsequent procedure is saved, and the production is saved.

Preferably, the storage battery is driven by a motor to complete material conveying from the previous process to the current process, the storage battery is driven by a cylinder to complete positioning of the storage battery on the production line, and the welding gun is driven by the motor to complete a welding path along the busbar.

The beneficial effects of the invention are as follows:

1. this novel lead acid battery busbar binding post welding process, its purpose of novel lead acid battery busbar utmost point post terminal welding machine aims at overcoming the not enough that prior art exists, and it is big to solve cast joint workman intensity of labour through the welded mode, and work fatigue, the dangerous scheduling problem of lead explosion, and welding binding post simultaneously, it is direct to put the terminal welding terminal directly to merge the front process with the back, and the simplified operation reduces the cost of labor, improves production efficiency.

2. The novel welding process for the bus bar wiring terminal of the lead-acid storage battery has the beneficial effects that: the welding process adopted by the invention has the advantages of good welding effect, high production efficiency, saving of subsequent processes, high automation degree, convenience for automatic operation, relatively independent operation space, small occupied space, capability of realizing unmanned automatic welding, and great reduction of labor cost and operation safety. Workers only need to monitor the welding process, can be far away from a dangerous operation area, greatly reduces the labor intensity and plays a role in guaranteeing personal safety and health. The unique discharge heating mode is adopted, the heating efficiency is high, and the energy consumption is greatly reduced. Meanwhile, the welding material is made of materials with higher tabs, so that the material consumption is greatly reduced. The invention comprehensively realizes the purposes of saving people, labor and materials, reducing consumption, improving efficiency, reducing cost and improving quality.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic diagram of a welding step of a novel welding process of a bus bar terminal of a lead-acid storage battery according to the invention;

FIG. 2 is a schematic structural diagram of a novel lead-acid battery busbar terminal welding process according to the present invention;

FIG. 3 is a flow chart of a lead-acid battery bus bar terminal welding machine of the novel lead-acid battery bus bar terminal welding process provided by the invention;

FIG. 4 is a block diagram of a lead-acid battery welding process for a bus bar terminal of a novel lead-acid battery according to the present invention;

FIG. 5 is a schematic diagram of a lead-acid battery welding tool mold of the novel lead-acid battery busbar wiring terminal welding process provided by the invention;

FIG. 6 is a schematic view of the structure I in FIG. 5;

FIG. 7 is a schematic structural view of II of FIG. 6;

fig. 8 is a schematic structural view of iii of fig. 5.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel welding process for a bus bar connecting terminal of a lead-acid storage battery is characterized in that a battery is placed on a conveying line, firstly, a pole group is firstly arranged, then, the battery reaches a first station, the battery is clamped, the first bus bar is welded, after the welding is completed, the next step is continuously carried out, the second bus bar is welded when the battery reaches a second station, after the welding is completed, the battery continues to reach a third station for welding the connecting terminal, and after the welding is completed, the battery continues to move forward, and the pole group is pressed into a plastic shell when the battery reaches a fourth station, so that the process is completed.

After a lead-acid storage battery which is not welded enters a groove from a groove entering machine, the lead-acid storage battery is shaped through a lug, and then the lead-acid storage battery is transported to a local conveying line through an upper assembly line, the driving shaft is driven and conveyed through a conveying line speed reducing motor, a driving chain wheel is driven, the storage battery is conveyed through the movement of a chain plate line, the storage battery is positioned and clamped through a conveying line, the storage battery arrives when the station arrives at an induction switch, the storage battery arrives, a signal is immediately sent to a PLC (programmable logic controller), the clamping module starts to act, the storage battery is clamped, the welding module starts to weld at the station, the first row of bus bars is welded well, the welding is finished by changing the welding into the first row of bus bars, the welding. The battery continues to reach the next station (station two), the station two arrives the inductive switch and senses that the battery arrives, send a signal to PLC immediately, the station two clamps the module and begins to move, the battery presss from both sides tightly, the station two welding module begins to weld at this moment, weld the second busbar well, the welding completion just becomes to weld the second busbar battery, the welding completion at this moment, the battery presss from both sides tight module and loosens, the battery leaves, the station two leaves and senses that there is the signal, transmits to PLC. The battery continues to reach the next station (station three), the station three reaches the inductive switch, the inductive switch senses that the battery arrives, a signal is immediately sent to the PLC, the station three clamping module starts to act, the battery is clamped, the station three wiring terminal welding module starts to weld at the moment, the wiring terminals are welded well, the welding is finished, the welding terminal row battery is changed into a welding terminal row battery, the battery clamping module is loosened, the battery leaves, the station three leaves the inductive switch, and the signal is transmitted to the PLC. The battery continues to reach the next station (station four), the station four reaches the inductive switch, the inductive switch senses that the battery arrives, a signal is immediately sent to the PLC, the station four clamping module starts to act, the battery is clamped, the pole group is pressed into the plastic shell module, the pole group of the battery with the welded wiring terminal, which is higher than the plastic shell, is pressed into the plastic shell through the air cylinder and the pressing block, and the battery becomes a welded pressed battery. After the completion, the battery clamping module is loosened, the battery leaves, and the signal is sensed when the station four leaves, and is transmitted to the PLC. At this point the welding process is complete and the battery flows out by transport.

The specific welding step of the welding module is as follows:

step one; die assembly: the battery gets into the welding station, and the battery is upright state, and its utmost point ear is up, and in first welding fishback, the utmost point ear space of second welding fishback compound die insertion battery, the middling pressure strip pushed down, and the middling pressure strip is in between first welding fishback, the second welding fishback, forms the welding die cavity with both, and at this moment, utmost point ear height should be higher than the last plane of welding die cavity, convenient welding.

Step two; welding preparation: laying of busbar and binding post part, placing two rows of busbar parts in welding die cavity in proper order according to technology order, comparing in battery technology before, having done the innovation in battery lead terminal department, put binding post by original utmost point post cast joint to the next process, manual welding directly becomes directly to weld binding post on the busbar through the welded mode, so not only can save the next process, save manufacturing cost moreover. The welding gun and the wire feeding mechanism are moved to the position above the pole group pole lug of the battery to be welded, and because the welding heights of the bus bar and the pole lug are different from each other by each manufacturer, the distance between the welding gun muzzle and the pole lug of the binding post to be welded of the battery can be adjusted according to the process requirements of different manufacturers, and is about 2-5mm higher.

The process parameter setting required to be set in the welding preparation stage mainly comprises the following steps: the welding gun position comprises welding gun moving speed, welding gun static position and welding gun static time, wherein the welding gun moving speed is 2-5mm/s, and the welding gun static time is 0.5-1 s; the wire feeding speed comprises a wire feeding position and wire feeding time, the distance between the wire feeding position and a gun mouth of a welding gun is 2-5mm, and the wire feeding time is 0.5-1 s; the heating parameters comprise the welding current and the on-off time of a welding gun, the welding current of the welding gun is 30-60A, the on-off time is 1-2s of power-on, and the power-off time is 0.5-1 s.

Step three; and (3) welding the bus bar, namely the connecting terminal: through the large current discharge generated by a welding gun, the lead alloy welding wire flow rows, namely the connecting terminals, are welded and respectively melted with two rows of lugs of a battery pole group into a whole, so that an effective bus bar and positive and negative connecting terminals which can be connected with positive and negative plates of the battery are formed.

Step four; demolding: the first welding comb plate and the second welding comb plate respectively move away from and away from the opposite two directions, the middle pressing strip moves upwards to realize battery demoulding, the welded battery is transferred to the next procedure, and the welding station prepares for welding of the next battery;

step five; repeating the above processes, and repeating the steps in the above way to realize the welding of the battery.

During welding, the battery flows into the first station, the welding gun and the wire feeding mechanism move along the first row of electrode lugs of the battery to weld a bus, then the welding gun and the wire feeding mechanism reach the second station, the welding gun and the wire feeding mechanism move along the second row of electrode lugs of the battery to weld the bus, then the welding gun and the wire feeding mechanism weld the wiring terminals at the positive and negative terminals of the battery. In order to facilitate welding, the battery is in a half-groove state, so after welding is finished, a fourth station is needed to press the welded pole group into the plastic shell by using a pressing block, and at the moment, the welding process is finished.

Referring to fig. 1 to 5, the welding process uses a dedicated welding machine to weld the battery bus bars, i.e., the connection terminals. Wherein, the welding module includes: the welding machine comprises a rack bottom plate, a welding module rack, a production line, a welding gun moving mechanism, a lifting mechanism, a wire feeding mechanism, a lead welding wire rotating disc and a welding tool mold. The welding module rack and the welding tool die are installed on the rack bottom plate, the welding gun moving mechanism is installed at the top of the welding module rack, the welding gun Y-direction moving mechanism capable of moving in the Y direction is installed on the welding gun moving mechanism, and the welding gun X-direction moving mechanism capable of moving in the X direction is arranged on the welding gun Y-direction moving mechanism. In order to enable the welding gun to descend to a reasonable height for welding the battery, the lifting mechanism is correspondingly designed, the wire feeding mechanism and the welding gun are installed on the lifting mechanism, and the rotary table for providing a lead alloy welding wire for the wire feeding mechanism is installed on the welding module rack and used for automatically feeding the wire. Meanwhile, a welding tool die is necessary during welding, and the tab is convenient to position and correct during welding, so that the welding is more convenient. The welding tooling die comprises a first welding comb plate, a second welding comb plate and a middle pressing strip. The cavity grooves of the first welding comb plate and the second welding comb plate are formed by a plurality of toothed strips, the toothed strips are just like teeth of a comb, the purpose is mainly to avoid polar lugs, the toothed strips are inserted into polar lug neutral positions of a battery during working, and the middle pressing strips are folded to form a welding cavity, so that the welding is facilitated. The middle pressing bar is driven and controlled by the auxiliary lifting mechanism to realize the descending and ascending actions of die assembly and die release.

The lifting mechanism is driven by a lifting cylinder to move up and down, the lifting cylinder is installed on the welding module rack, and the lifting mechanism is fixed with a welding gun, a welding gun moving mechanism and a wire feeding mechanism. What be used for fixedly on the mounting panel of fixed wire feeder and welder is the arc wall of regulation installation, and welder angle adjustment mechanism can adjust the angle that welder and sent a silk, conveniently finds more suitable angle and welds.

Referring to fig. 5 to 8, the welding tooling mold includes a worktable, a support pillar, an auxiliary guide rail, a first welding comb plate, a second welding comb plate, and a middle pressing bar. The first welding comb plate and the second welding comb plate can be close to or far away from each other along the length direction of the auxiliary guide rail to move, a positioning central cavity allowing a battery to penetrate out is formed in the middle of the workbench, a first cavity group is arranged on one side wall of the first welding comb plate facing the second welding comb plate and consists of a plurality of first cavity grooves with openings, a second cavity group is arranged on one side wall of the second welding comb plate facing the first welding comb plate and consists of a plurality of second cavity grooves with openings, the first cavity grooves and the second cavity grooves are arranged in a staggered mode, a plurality of tooth-shaped strips are arranged in the first cavity grooves and the second cavity grooves respectively, tooth inserting grooves allowing lugs of the battery to penetrate out are formed between adjacent tooth-shaped strips, a medium-pressure strip can be arranged between the first welding comb plate and the second welding comb plate after the die is closed, two side walls of the medium-pressure strip are abutted to end faces of the tooth-shaped strips in the first cavity grooves and the second cavity grooves respectively, and sealing the openings of the first cavity groove and the second cavity groove to form a plurality of closed welding cavities.

Be equipped with first layer board, the second layer board that is used for bearing median lamella on first welding fishback, the second welding fishback respectively, the bilateral symmetry of median lamella is equipped with the support curb plate, the lateral wall that supports the curb plate is used for the opening in first die cavity groove of shutoff and the second die cavity groove respectively.

The first cavity group is composed of a plurality of first cavity grooves and comprises two short grooves and two first long grooves corresponding to the battery unit cells on one side of the battery, and the second cavity group is composed of a plurality of second cavity grooves and comprises three second long grooves corresponding to the battery unit cells on the other side of the battery.

The both ends symmetry of first welding fishback bottom is equipped with and can follows the first slide of auxiliary guide rail removal, and the both ends symmetry of second welding fishback bottom is equipped with the second slide that can follow the auxiliary guide rail removal.

The invention relates to a novel welding process for a bus bar wiring terminal of a lead-acid storage battery, wherein the battery is in an upright state during welding, a plate-wrapping pole lug is upward and is in a half-groove state, and cavity grooves of a first welding cavity die and a second welding cavity die are composed of a plurality of tooth-shaped strips which are just like teeth of a comb, so that the purpose is mainly to avoid the pole lug, the tooth-shaped strips are inserted into a pole lug neutral position of the battery during working, and a middle pressing strip is folded to form a welding cavity, thereby facilitating welding. The wire feeder can automatically feed welding wires, lead alloy wires meeting the battery process requirements are selected, and discharge is carried out through large current generated by a welding gun, and lead alloy welding wire rows, namely connecting terminals, are welded and fused with two rows of lugs of a battery pole group respectively to form an effective busbar and positive and negative connecting terminals which can be connected with positive and negative plates of a battery. During welding, the battery flows into the first station, the welding gun and the wire feeding mechanism move along the first row of electrode lugs of the battery to weld a bus, then the welding gun and the wire feeding mechanism reach the second station, the welding gun and the wire feeding mechanism move along the second row of electrode lugs of the battery to weld the bus, then the welding gun and the wire feeding mechanism weld the wiring terminals at the positive and negative terminals of the battery. When welding of one station is completed, the first welding cavity die and the second welding cavity die move away from two sides respectively, and the middle pressing strip can realize battery demoulding.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.