A battery casting welding device for one-step forming of lead bridge

Abstract

The invention discloses a battery casting welding device for forming a lead bridge in one step. The lead bridge of the battery is a U-shaped structure. The battery casting welding device comprises: a casting welding bottom mold, a casting welding cavity is provided on the top surface, and the casting welding cavity comprises a bus cavity for forming a bus, a pole cavity for forming an end pole, and a bridge cavity for forming a lead bridge; a battery placement plate is used to invert the battery pole group to be cast-welded, and the battery placement plate is provided with a casting welding hole for the pole ear in the battery pole group to pass through; the vertical direction of the bridge cavity corresponds to the axial direction of the U-shaped arm, and the battery placement plate is also provided with a baffle that extends into the bridge cavity when the pole ear of the battery extends into the casting welding cavity, and the baffle separates the bridge cavity into a U-shaped structure cavity for casting welding to form a lead bridge. The invention can automatically complete the one-step forming of the lead bridge of the battery and the operation of the pole group entering the slot, greatly improving the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of battery production equipment, and in particular to a battery casting welding device for forming a lead bridge in one step. Background Art

[0002] The structure of a lead-acid battery includes a battery tank and a pole group arranged in the battery tank. The pole group includes alternately stacked positive and negative plates. The positive pole ears of all positive plates in the same pole group need to be connected in series using a positive bus bar, and the negative pole ears of all negative plates in the same pole group need to be connected in series using a negative bus bar. At the same time, the positive and negative bus bars between adjacent pole groups need to be connected in series through a lead bridge. The formation of the bus bar is generally completed by cast welding.

[0003] For example, the patent specification with the publication number CN205828552U discloses a bridge pole bending device, including a turnover plate, a battery slot, a pole group and a pressure block. A positioning scraper is provided on the lower side of the turnover plate, a matching battery slot is provided on the turnover plate, a pole group is provided in the battery slot, and a positive and negative pole ears are provided on the pole group. A bridge pole is welded and fixed below the positive and negative pole ears; the pressure block is arranged below the bridge pole and connected to the cylinder top rod. This scheme presses the pressure block against the bridge pole, and bends it 90° under the action of the positioning scraper. Although it solves the problem of manually bending the bridge pole when the pole group is welded into the slot, it cannot achieve one-time forming of the lead bridge, and the work efficiency is still low.

[0004] Another example is the patent specification with publication number CN111069573A, which discloses a battery casting welding device, comprising: a lead pot; a casting welding bottom mold, which is movably arranged above the lead pot and has a casting welding cavity on the top surface; a battery placement plate, which is used to place the battery to be cast welded upside down, and the battery placement plate is provided with casting welding holes for the battery internal pole group to pass through; a battery fixing frame, which is movably arranged above the casting welding bottom mold, and is used to place the battery placement plate and fix the battery to be cast welded; the battery casting welding device also includes: a translation plate, which can be moved horizontally. Arranged between the cast welding bottom mold and the battery fixing frame, the translation plate is provided with a top block for pushing the top of the pole group after cast welding into the battery slot of the battery; the first scraper is arranged below the translation plate, and is used to scrape off excess lead liquid on the surface of the cast welding bottom mold during the translation process of the translation plate; the second scraper is arranged below the translation plate in a liftable manner. When the cast welding bottom mold is immersed in the lead liquid in the lead pot, the second scraper descends and moves horizontally with the translation plate to scrape the scum on the surface of the lead liquid to one side, and is reset before the cast welding bottom mold is lifted above the lead pot. In this scheme, the cast welding bottom mold is immersed in the lead pot to allow the liquid lead to enter the cavity on the surface of the cast welding bottom mold (bus mold, cast welding mold), and then the cast welding bottom mold is raised. After scraping off the excess liquid lead on the surface of the cast welding bottom mold, the inverted battery pole group is lowered to allow the pole ears to extend into the corresponding cavity. The cast welding bottom mold is then cooled to form the bus. However, this scheme can only achieve one-time cast welding of the direct lead bridge, and cannot achieve one-time cast welding of the bent lead bridge. At the same time, after the cast welding is completed, it is necessary to add a pole group slotting process, which greatly reduces production efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a battery casting welding device with one-time forming of lead bridge, which can automatically complete the one-time forming of battery lead bridge and the operation of pole group slotting, thereby greatly improving production efficiency.

[0006] A battery casting welding device with a lead bridge formed in one step, wherein the lead bridge of the battery is a U-shaped structure, including two U-shaped arms and a connecting portion connecting the two U-shaped arms, one end of the U-shaped arm is connected to a bus bar, and the battery casting welding device comprises:

[0007] A cast welding bottom mold, the top surface of which is provided with a cast welding cavity, the cast welding cavity includes a busbar cavity for forming a busbar, a pole cavity for forming an end pole, and a bridge cavity for forming a lead bridge;

[0008] A battery placement plate is used to place the battery pole groups to be cast-welded upside down, and the battery placement plate is provided with cast-welding holes for the pole ears in the battery pole groups to pass through;

[0009] The vertical direction of the bridge cavity corresponds to the axial direction of the U-shaped arm. The battery placement plate is also provided with a baffle that extends into the bridge cavity when the battery pole ear extends into the cast welding cavity. The baffle divides the bridge cavity into a U-shaped structure cavity for cast welding to form a lead bridge.

[0010] Preferably, the busbar cavity corresponding to each battery is divided into two rows, the bridge cavity is also divided into two rows, and correspondingly, the baffles are also divided into two rows, each row of baffles is connected to the same movable frame, and both movable frames can be movably mounted on the battery placement plate;

[0011] The battery casting welding device also includes a driving mechanism for driving the movable frame to move after the casting welding is completed and the pole group is put into the slot, thereby driving the blocking piece to move away from the middle of the two U-shaped arms of the lead bridge.

[0012] Preferably, the cast welding bottom mold has two groups of cast welding cavities, and correspondingly, the battery placement plate is provided with two cast welding holes for cast welding two batteries at a time, and a pair of movable frames are shared between the two cast welding holes, and the baffles moving in the same direction in each of the two rows of baffles corresponding to the two batteries are connected to the same movable frame.

[0013] Preferably, the battery placement plate is provided with guide grooves on both sides of the moving direction of the vertical movable frame, and guide slide blocks cooperating with the guide grooves are provided on both sides of the movable frame, and a return spring for pulling the two movable frames closer to each other is provided between the two movable frames;

[0014] The two movable frames are respectively provided with driving grooves on the sides close to each other, the driving grooves are arranged in pairs, each pair of driving grooves includes one driving groove respectively arranged on the two movable frames, and each pair of driving grooves constitutes a driving port;

[0015] The driving mechanism also includes a driving block that can extend into the driving port to drive the two movable frames to move away from each other, thereby driving the blocking piece to move out of the bridge cavity. One end of the driving block extending into the driving port has a driving portion with a gradually increasing size.

[0016] Preferably, the battery placing plate is for placing batteries with pole groups partially inserted into the slots, the battery casting welding device further comprises a top column corresponding to the pole groups one by one and used to push the pole groups into the slots after casting welding is completed, and a horizontal mounting plate for mounting the top columns and being horizontally movable, and the driving block is arranged on the horizontal mounting plate;

[0017] The horizontal mounting plate has a first state in which it moves to one end during the casting and welding process to avoid the battery placement plate, and a second state in which it moves to the bottom of the battery placement plate when the pole group is put into the slot so that the top column corresponds to the pole group and the drive block corresponds to the drive port.

[0018] Preferably, it also includes a frame, which is provided with a first horizontal slide groove for installing the horizontal mounting plate, the first horizontal slide groove includes two lines corresponding to two sides of the horizontal mounting plate respectively, and the frame is provided with a first cylinder for driving the horizontal mounting plate to slide along the first horizontal slide groove.

[0019] Preferably, it also includes a lift frame for placing the battery placement plate, which can be raised and lowered. The lift frame has a second horizontal slide groove for installing the battery placement plate, and the second horizontal slide groove includes two corresponding to two sides of the battery placement plate.

[0020] Preferably, a second cylinder for driving the lifting frame to move vertically is provided on the frame.

[0021] Preferably, a lead pot for providing molten lead is provided below the cast welding bottom mold, and a third cylinder for driving the cast welding bottom mold to rise and fall is provided on the frame.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides a baffle and a driving mechanism for driving the movement of the baffle. When the lead bridge is cast-welded, the baffle is driven to extend into the bridge cavity to achieve one-time forming of the lead bridge. When the pole group is slotted, the baffle is driven to move out of the bridge cavity to achieve slotting of the pole group. The whole process is smoothly connected, and the cast-welding of the lead bridge and the slotting of the pole group are achieved at one time, thereby greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a front view of the present invention;

[0026] Figure 3 It is a structural schematic diagram of a battery pole group being placed upside down on a battery placement board;

[0027] Figure 4 A schematic diagram of the structure of the baffle separating the bridge cavity to form a lead bridge;

[0028] Figure 5 It is a structural schematic diagram of a movable frame;

[0029] Figure 6 This is a structural diagram of the movable frame from another perspective. DETAILED DESCRIPTION

[0030] like Figure 1-6As shown, a battery casting welding device for forming a lead bridge in one step, the lead bridge 16 of the battery is a U-shaped structure, including two U-shaped arms and a connecting portion connecting the two U-shaped arms, one end of the U-shaped arm is connected to the bus, and the battery casting welding device includes a casting welding bottom mold 2, a battery placement plate 3 and a baffle 4 arranged on the battery placement plate; wherein the top surface of the casting welding bottom mold 2 is provided with a casting welding cavity, and the casting welding cavity includes a bus cavity for forming a bus, and a pole cavity for forming an end pole. , a bridge cavity for forming a lead bridge; the battery placement plate 3 is used to place the battery pole groups to be cast-welded invertedly. In other words, the battery placement plate 3 places batteries with the pole groups partially inserted into the slots. Correspondingly, the battery placement plate 3 is provided with cast-welding holes 31 for the pole ears in the battery pole groups to pass through; the baffle 4 is movable and can extend into the bridge cavity when the pole ears of the battery extend into the cast-welding cavity, thereby dividing the bridge cavity into a U-shaped structure cavity for cast-welding to form the lead bridge 16.

[0031] The busbar cavity corresponding to each battery is divided into two rows, the bridge cavity is also divided into two rows, and correspondingly, the baffles 4 are also divided into two rows. Each row of baffles 4 is connected to the same movable frame 5, and the two movable frames 5 can be movably installed on the battery placement plate 3; the battery cast welding device also includes a driving mechanism for driving the movable frame 5 to move after the cast welding is completed and the pole group is put into the slot, thereby driving the baffles 4 to move away from the middle of the two U-shaped arms of the lead bridge.

[0032] In this embodiment, the cast welding bottom mold 2 has two groups of cast welding cavities, and correspondingly, the battery placement plate 3 is provided with two cast welding holes 31, which are used for cast welding two batteries at a time. A pair of movable frames 5 are shared between the two cast welding holes 31, and the baffles 4 moving in the same direction in each of the two rows of baffles 4 corresponding to the two batteries are connected to the same movable frame 5; specifically, the root of the baffle 4 is set as a square slider 41, and a slide groove 32 is correspondingly set on the battery placement plate 3. When the square slider 41 slides in the slide groove 32, the stability of the movement of the baffle 4 is ensured.

[0033] The battery placement plate 3 is provided with guide grooves 33 on both sides of the moving direction of the movable frame 5, and guide sliders 51 cooperating with the guide grooves 33 are provided on both sides of the movable frame 5. A reset spring 6 for pulling the two movable frames 51 closer to each other is provided between the two movable frames 51; the two movable frames 5 are respectively provided with driving grooves on the side close to each other, and the driving grooves are arranged in pairs, each pair of driving grooves includes one respectively arranged on the two movable frames, and each pair of driving grooves constitutes a driving port 52; correspondingly, the driving mechanism includes a driving block 7 that can be extended into the driving port 52 to drive the two movable frames 5 away from each other, thereby driving the baffle 4 to move out of the bridge cavity, and at the same time, when the driving block 7 is removed from the driving port 52, under the action of the reset spring 6, the two movable frames 5 are driven to approach each other; specifically, one end of the driving block 7 extending into the driving port 52 has a driving portion with a gradually increasing size, and more precisely, the driving portion gradually increases in size along the direction from approaching the driving port 52 to moving away from the driving port 52.

[0034] In this embodiment, the battery cast welding device also includes a top column 8 corresponding to the pole group one by one and used to push the pole group into the groove after the cast welding is completed, and a horizontal mounting plate 9 for mounting each top column 8 and being horizontally movable, and the drive block 7 is correspondingly arranged on the horizontal mounting plate 9; the horizontal mounting plate 9 specifically includes two states, namely, a first state in which it moves to one end to avoid the battery placement plate during the cast welding process, and a second state in which it moves to the bottom of the battery placement plate 3 when the pole group is entered into the groove so that the top column 8 corresponds to the pole group and the drive block 7 corresponds to the drive port 52.

[0035] In some optional embodiments, the battery casting welding device also includes a frame 1, which is provided with a first horizontal slide groove 91 for installing a horizontal mounting plate 9, the first horizontal slide groove 91 includes two lines corresponding to the two sides of the horizontal mounting plate 9, and the frame 1 is provided with a first cylinder 10 for driving the horizontal mounting plate 9 to slide along the first horizontal slide groove 91.

[0036] In some optional embodiments, the battery casting welding device also includes a lifting frame 11 for placing a battery placement plate 3 and can be raised and lowered. The lifting frame 11 has a second horizontal slide groove 111 for installing the battery placement plate 3. The second horizontal slide groove 111 includes two corresponding to the two sides of the battery placement plate 3 respectively. The frame 1 is also provided with a second cylinder 12 for driving the lifting frame 11 to move vertically; in addition, the lifting frame 11 is also provided with a lifting and lowering pressure plate for pressing the battery, and the pressure plate is also driven by a cylinder arranged on the frame 1. The pressure plate driving mechanism is a prior art, so it is not shown in detail in the figure.

[0037] In this embodiment, a lead pot for providing molten lead is provided under the cast welding bottom mold 2, and a third cylinder 13 for driving the cast welding bottom mold 2 to rise and fall is provided on the frame 1. Specifically, the cast welding bottom mold 2 is fixed on the mounting frame 14, and the third cylinder 12 drives the cast welding bottom mold 2 to rise and fall by driving the mounting frame 14.

[0038] Working process of the present invention:

[0039] The pole group is half inserted into the battery slot as the battery to be cast-welded, and the battery is turned upside down on the battery placement plate 3, and then the battery to be cast-welded is fixed by the pressure plate; the third cylinder 13 drives the mounting frame 14 to descend, driving the cast welding bottom mold 2 to sink below the lead liquid level of the lead pot, so that the cast welding cavity is filled with lead liquid; when the cast welding bottom mold 2 is immersed in the lead liquid, the first cylinder 10 drives the horizontal mounting plate 9 to the first state, that is, to avoid the descent of the battery placement plate 3; the second cylinder 12 drives the lifting frame 11 to descend, driving the battery to be cast-welded to descend until the pole group of the battery The pole ear is extended into the busbar cavity to complete the cast welding; the second cylinder 12 drives the lifting frame 11 to return to its original position; the first cylinder 10 drives the horizontal mounting plate 9 to the second state, that is, it is located directly below the battery placement plate 3, at this time, the top column 8 corresponds to the pole group, and the driving block 7 corresponds to the driving port 52; the second cylinder 12 continues to drive the lifting frame 11 to descend, and the driving block 7 extends into the driving port 52, so that the two movable frames 5 move away from each other, thereby driving the baffle 4 to move out of the bridge cavity. At the same time, the top column 8 pushes against the top pole group, so that the pole group is completed into the battery slot to complete the assembly.

Claims

1. A battery casting welding device with a lead bridge formed in one step, wherein the lead bridge of the battery is a U-shaped structure, including two U-shaped arms and a connecting part connecting the two U-shaped arms, one end of the U-shaped arm is connected to a bus bar, and the battery casting welding device include: A cast welding bottom mold, the top surface of which is provided with a cast welding cavity, the cast welding cavity includes a busbar cavity for forming a busbar, a pole cavity for forming an end pole, and a bridge cavity for forming a lead bridge; A battery placement plate is used to place the battery pole groups to be cast-welded upside down, and the battery placement plate is provided with cast-welding holes for the pole ears in the battery pole groups to pass through; The invention is characterized in that the vertical direction of the bridge cavity corresponds to the axial direction of the U-shaped arm, and the battery placement plate is also provided with a baffle that extends into the bridge cavity when the battery tab extends into the cast welding cavity, and the baffle divides the bridge cavity into a U-shaped structure cavity for cast welding to form a lead bridge; The busbar cavity corresponding to each battery is divided into two rows, the bridge cavity is also divided into two rows, and correspondingly, the baffles are also divided into two rows, each row of baffles is connected to the same movable frame, and both movable frames can be movably mounted on the battery placement board; The battery casting welding device also includes a driving mechanism for driving the movable frame to move after the casting welding is completed and the pole group is put into the slot, thereby driving the blocking piece to move away from the middle of the two U-shaped arms of the lead bridge; The cast welding bottom mold has two groups of cast welding cavities, and correspondingly, the battery placement plate is provided with two cast welding holes for cast welding two storage batteries at a time. A pair of movable frames are shared between the two cast welding holes, and the blocking pieces moving in the same direction in each of the two rows of blocking pieces corresponding to the two storage batteries are connected to the same movable frame; The battery placement plate is provided with guide grooves on both sides of the vertical movable frame moving direction, and guide slide blocks cooperating with the guide grooves are provided on both sides of the movable frame, and a return spring for pulling the two movable frames closer to each other is provided between the two movable frames; The two movable frames are respectively provided with driving grooves on the sides close to each other, and the driving grooves are arranged in pairs, each pair of driving grooves includes one driving groove respectively arranged on the two movable frames, and each pair of driving grooves forms a driving port; The driving mechanism also includes a driving block that can extend into the driving port to drive the two movable frames to move away from each other, thereby driving the blocking piece to move out of the bridge cavity. One end of the driving block extending into the driving port has a driving portion with a gradually increasing size.

2. The battery casting welding device according to claim 1, It is characterized in that The battery placement board is for storage batteries with pole groups partially inserted into the slots. The battery cast welding device also includes a top column corresponding to the pole groups one by one and used to push the pole groups into the slots after cast welding is completed, and a horizontal mounting plate for mounting each top column and being horizontally movable. The driving block is arranged on the horizontal mounting plate. The horizontal mounting plate has a first state in which it moves to one end during the casting and welding process to avoid the battery placement plate, and a second state in which it moves to the bottom of the battery placement plate when the pole group is put into the slot so that the top column corresponds to the pole group and the drive block corresponds to the drive port.

3. The battery casting welding device according to claim 2, It is characterized in that It also includes a frame, which is provided with a first horizontal slide groove for installing the horizontal mounting plate, the first horizontal slide groove includes two lines corresponding to the two sides of the horizontal mounting plate respectively, and the frame is provided with a first cylinder for driving the horizontal mounting plate to slide along the first horizontal slide groove.

4. The battery casting welding device according to claim 3, It is characterized in that It also includes a lifting frame for placing the battery placement board and can be raised and lowered. The lifting frame has a second horizontal slide groove for installing the battery placement board. The second horizontal slide groove includes two corresponding to two sides of the battery placement board.

5. The battery casting welding device according to claim 4, It is characterized in that The frame is provided with a second cylinder for driving the lifting frame to move vertically.

6. The battery casting welding device according to claim 3, It is characterized in that A lead pot for providing molten lead is provided below the cast welding bottom mold, and a third cylinder for driving the cast welding bottom mold to rise and fall is provided on the frame.

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