A lifting platform for electrode group welding of lead-acid batteries

Abstract

A lifting platform for electrode group casting and welding of lead-acid batteries includes a lifting device, two crossbeams for supporting the casting and welding mold, and a lifting mechanism for lifting the ejector plate of the welding module. The lifting device includes guide frames symmetrically arranged on both sides of the frame, four lifting columns, and a lifting drive device for driving the four lifting columns to move up and down. The four lifting columns are slidably mounted on both ends of the two guide frames. Each of the four lifting columns has a vertically mounted lifting block for supporting the welding fixture at its top, and the upper surfaces of the four lifting blocks are flush. The lower ends of the four lifting columns are connected to the lifting drive device. The two crossbeams are vertically supported side-by-side on the two guide frames. The lifting mechanism includes a lifting rod and a drive device for driving the lifting rod to move up and down. The lifting rod is parallel to the two crossbeams, and multiple top blocks are distributed at its upper end. This effectively ensures the stability of the temperature of the molten lead for casting and welding, improving the quality of the casting and welding.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a lifting platform for electrode group casting and welding of lead-acid batteries. Technical Background

[0002] A storage battery is a type of battery that stores limited electrical energy for use in suitable applications. Lead-acid batteries, in particular, are widely used in power generation, lighting, and transportation. In the manufacturing process of lead-acid batteries, casting and welding is a crucial step.

[0003] Currently, lead-acid battery casting and welding machines adopt a rotating four-station worktable structure. The first station is for feeding, the second station is for pre-casting and welding treatment, the third station is for casting and welding, and the fourth station is for unloading. The four stations work independently without interfering with each other. A casting and welding mold is placed at the lower end of the casting and welding station, and the position of the casting and welding mold is fixed. During casting and welding, molten lead is injected into the cavity of the casting and welding mold. Multiple sets of electrode groups clamped in the casting and welding fixture are rotated 180° with the electrode ears facing down after pre-casting and welding treatment, and flow to the casting and welding station with the fixture. The multiple sets of electrode groups are directly snapped onto the casting and welding mold for casting and welding. Finally, after the casting and welding mold cools, a lead return bus is formed on the electrode group, and then the mold is removed by ejector pins.

[0004] Since the casting mold and casting fixture are in fixed positions, in order to prevent the casting mold from not being filled with lead liquid, the electrode group moves to the third station with the rotary table and is placed in the cavity of the casting mold for casting and welding. Lead liquid must be injected into the casting mold in advance. However, since the casting mold is equipped with cooling pipes, injecting lead liquid into the mold too early will cause the temperature of the lead liquid to be unstable, which will seriously affect the quality of casting and welding, and thus affect the quality and service life of the battery. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lifting platform for electrode group casting and welding of lead-acid batteries, which effectively ensures the stability of the temperature of the lead molten lead and improves the casting and welding quality.

[0006] A lifting platform for electrode group casting and welding of lead-acid batteries, installed on one side of the rotating platform of the casting and welding machine, includes:

[0007] The lifting device includes guide frames symmetrically arranged on both sides of the frame, four lifting columns, and a lifting drive device for driving the four lifting columns to lift. The four lifting columns are slidably mounted on both ends of the two guide frames. Each of the four lifting columns has a vertically mounted lifting block for supporting the welding fixture at its top. The upper surfaces of the four lifting blocks are flush. The lower ends of the four lifting columns are connected to the lifting drive device.

[0008] Two crossbeams are used to support the casting and welding molds. The two crossbeams are supported vertically side by side on two guide frames.

[0009] A lifting mechanism for lifting the welding module ejector plate includes a lifting rod and a driving device for driving the lifting rod to rise and fall. The lifting rod is arranged in parallel between two crossbeams, and multiple top blocks are distributed at the upper end of the lifting rod.

[0010] The frame includes a base plate and an upright plate connected to one end of the base plate. One side of the base plate is fixedly connected to the frame of the casting and welding machine. The base plate is provided with through holes corresponding to the four lifting columns.

[0011] The two guide frames are U-shaped channel steels with opposite openings. Each guide frame has a bearing installed in the upper and lower side walls at both ends. Each lifting column passes through the two bearings on the same side of the corresponding guide frame.

[0012] The lifting drive device includes two connecting rods arranged side by side and a transverse cylinder for driving the two connecting rods to move laterally. The upper ends of the two connecting rods are provided with grooves corresponding to the four lifting columns. One side of the groove is a slope surface. The bottom of the four lifting columns is connected to rollers that can slide and rise along the slope surface.

[0013] The two connecting rods are slidably supported in two bearings with mounting brackets, the top of which is fixed to the base plate of the frame.

[0014] The cylinder barrel of the transverse cylinder is fixed on the mounting plate. The telescopic rod of the transverse cylinder passes through the mounting plate and is connected to the top of the fixed block. The fixed block is fixed on the bottom plate of the frame. The mounting plate is connected and fixed to one end of the two connecting rods.

[0015] The fixing block has a threaded through hole, and a positioning screw is installed in the threaded through hole.

[0016] The drive device includes a connecting frame and a lifting cylinder. The connecting frame is a U-shaped frame structure composed of a crossbar and longitudinal bars symmetrically connected to both ends of the crossbar. The top ends of the two longitudinal bars are hinged to the outside of the two guide frames. The top end of the piston rod of the lifting cylinder is connected to the middle of the crossbar, and the two ends of the lifting rod are connected between the two longitudinal bars.

[0017] When the lifting cylinder is fully extended, the upper surfaces of the multiple top blocks on the lifting rod protrude beyond the upper surface of the crossarm. When the lifting cylinder is fully retracted, the upper surfaces of the multiple top blocks on the lifting rod are lower than the upper surface of the crossarm.

[0018] The guide frame has a clearance groove in the middle to allow the lifting rod to pass.

[0019] One of the crossarms is equipped with a positioning groove that is used to position the casting and welding mold.

[0020] Compared with the prior art, this invention uses a lifting device to lift the casting and welding fixture, and then quickly injects molten lead into the casting and welding mold. Simultaneously with the injection of molten lead, the casting and welding fixture is rapidly lowered to secure the electrode plate inside the mold for casting and welding. This eliminates the need for premature injection of molten lead; after injection, only the lowering of the welding fixture is required to begin casting and welding. This effectively prevents premature injection of molten lead into the casting and welding mold, which could lower the temperature of the molten lead and prevent the desired casting and welding temperature from being reached, resulting in poor casting and welding quality. Furthermore, this device does not interfere with the work of other stations, effectively saving production time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a side view of the present invention;

[0024] Figure 4 This is a top view of the present invention;

[0025] In the diagram: 1. Guide frame, 2. Lifting column, 3. Lifting block, 4. Lifting rod, 5. Top block, 6. Crossbeam, 7. Connecting rod, 8. Lateral movement cylinder, 9. Bearing with seat, 10. Mounting plate, 11. Fixing block, 12. Groove, 13. Base plate, 14. Roller, 15. Clearance hole, 16. Positioning screw, 17. Vertical plate, 18. Connecting frame, 19. Lifting cylinder, 20. Clearance groove. Detailed Implementation

[0026] The following are specific embodiments of this utility model, in conjunction with the accompanying drawings. Figures 1-4 The technical solution of the utility model will be further described below, but the utility model is not limited to these embodiments.

[0027] Figures 1-4 In the process, one side of the base plate 13 is fixed to the frame of the casting and welding machine, and the other end is supported by the upright plate 17. A pair of guide frames 1 are installed at both ends of the base plate 13. The two guide frames 1 are U-shaped channel steels with opposite openings. The upper and lower side walls of the two ends of the two guide frames 1 have corresponding holes, and bearings are embedded in the holes. Lifting columns 2 are installed in the bearings embedded on both sides of each guide frame 1. The upper end of the lifting column 2 passes through the bearing on the guide frame 1, and the top end is equipped with a lifting block 3. The upper end face of the lifting block 3 is located on the same horizontal plane. The four lifting blocks 3 can horizontally support the casting and welding fixture. The base plate 13 is provided with through holes for each lifting column 2 to pass through. The bottom of each lifting column 2 passes through the corresponding through hole on the base plate 13 and is equipped with a roller 14 that is rotatably connected to the lifting drive device.

[0028] The lifting drive device is located at the lower end of the base plate 13 and includes two connecting rods 7 arranged side by side. The upper ends of the two connecting rods 7 are provided with grooves 12 corresponding to the four lifting columns 2. One side of the groove 12 is a slope. The rollers 14 at the bottom of the four lifting columns 2 can slide and rise along the slope. The two connecting rods 7 are inserted into the bearings 9 fixed to the lower end of the base plate 13. One end of the two connecting rods 7 is connected to the mounting plate 10. The mounting plate 10 is used to install and fix the cylinder of the transverse cylinder 8. The top of the telescopic rod of the transverse cylinder 8 passes through the mounting plate 10 and is connected to the fixing block 11. The fixing block 11 is fixed to the lower end of the base plate 13. When the telescopic rod of the transverse cylinder 8 extends, since the fixing block 11 is fixed to the base plate 13, the cylinder of the transverse cylinder 8 and the mounting plate 10 move to the right, thereby driving the two connecting rods 7 to the right, the grooves 12 to the right, and the rollers 14 to the slope of the grooves 12, thereby causing the lifting columns 2 to rise. The positioning screw 16 is inserted into the threaded through hole on the fixing block 11. By adjusting the position of the positioning screw 16, the extension range of the transverse cylinder 8 is adjusted, and thus the lifting range of the lifting column 2 is adjusted.

[0029] Two guide frames 1 are connected by two parallel crossbeams 6 for supporting the casting and welding mold. One of the crossbeams 6 has a positioning groove that matches the bottom protrusion of the casting and welding mold. The fixed sliding groove extends along the length of the crossbeam 6.

[0030] A lifting rod 4 is provided between the two crossbeams 6, parallel to the two crossbeams. After casting and welding, the lifting rod 4 rises, pushing up the ejector plate of the casting and welding mold, allowing the welded electrode group to exit the mold cavity. Multiple ejector blocks 5 are distributed at the upper end of the lifting rod 4, each corresponding to an ejector pin on the ejector plate of the casting and welding mold. The lifting rod 4 is driven to rise and fall by a drive device. The connecting frame of the drive device is a U-shaped frame structure, consisting of a crossbeam and longitudinal rods symmetrically connected to both ends of the crossbeam. The top ends of the two longitudinal rods are hinged to the outside of the two guide frames 1. The top end of the piston rod of the lifting cylinder 19 is connected to the middle of the crossbeam. The two ends of the lifting rod 4 are connected between the two longitudinal rods. A clearance groove 20 is provided in the middle of the guide frame 1 to accommodate the lifting rod 4. When the lifting cylinder 19 is fully extended, the upper surfaces of the multiple top blocks 5 on the lifting rod 4 protrude from the upper surface of the crossarm 6. When the lifting cylinder 19 is fully retracted, the upper surfaces of the multiple top blocks 5 on the lifting rod 4 are lower than the upper surface of the crossarm 6.

Claims

1. A lifting platform for casting and welding of a pole group of a lead-acid battery, which is arranged on one side of a rotating platform of a casting and welding machine, characterized in that: include: The lifting device includes guide frames (1) symmetrically arranged on both sides of the frame, four lifting columns (2), and a lifting drive device for driving the four lifting columns (2) to lift. The four lifting columns (2) are slidably mounted on both ends of the two guide frames (1). The top of each of the four lifting columns (2) is vertically mounted with a lifting block (3) for supporting the welding fixture. The upper surfaces of the four lifting blocks (3) are flush. The lower ends of the four lifting columns (2) are connected to the lifting drive device. Two crossbeams (6) are used to support the casting and welding mold. The two crossbeams (6) are vertically supported side by side on two guide frames (1). A lifting mechanism for lifting the welding module ejector plate includes a lifting rod (4) and a driving device for driving the lifting rod (4) to rise and fall. The lifting rod (4) is arranged in parallel between two crossbeams (6), and multiple top blocks (5) are distributed at the upper end of the lifting rod (4).

2. The lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1, characterized in that: The frame includes a base plate (13) and an upright plate (17) connected to one end of the base plate (13). One side of the base plate (13) is fixedly connected to the frame of the casting and welding machine. The base plate (13) is provided with through holes corresponding to the four lifting columns (2).

3. The lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1, characterized in that: The two guide frames (1) are U-shaped channel steels with opposite openings. Each guide frame (1) has a bearing installed in the upper and lower side walls at both ends. Each lifting column (2) passes through the two bearings on the same side of the corresponding guide frame (1).

4. The lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1, characterized in that: The lifting drive device includes two connecting rods (7) arranged side by side and a transverse cylinder (8) for driving the two connecting rods (7) to move laterally. The upper ends of the two connecting rods (7) are provided with grooves (12) corresponding to the four lifting columns (2). One side of the groove (12) is a slope. The bottom of the four lifting columns (2) is connected to rollers (14) that can slide and rise along the slope.

5. A lifting platform for electrode group casting and welding of a lead-acid battery according to claim 4, characterized in that: The two connecting rods (7) are slidably supported in two seated bearings (9), the top of which is fixed to the base plate (13) of the frame.

6. The lifting platform for electrode group casting and welding of a lead-acid battery according to claim 4, characterized in that: The cylinder of the transverse cylinder (8) is fixed on the mounting plate (10). The telescopic rod of the transverse cylinder (8) passes through the mounting plate (10) and its top end is connected to the fixing block (11). The fixing block (11) is fixed on the bottom plate (13) of the frame. The mounting plate (10) is connected and fixed to one end of the two connecting rods (7).

7. A lifting platform for electrode group casting and welding of a lead-acid battery according to claim 6, characterized in that: The fixing block (11) has a threaded through hole, and a positioning screw (16) is installed in the threaded through hole.

8. A lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1, characterized in that: The drive device includes a connecting frame (18) and a lifting cylinder (19). The connecting frame (18) is a U-shaped frame structure composed of a crossbar and longitudinal bars symmetrically connected to both ends of the crossbar. The top ends of the two longitudinal bars are hinged to the outside of the two guide frames (1). The top end of the piston rod of the lifting cylinder (19) is connected to the middle of the crossbar. The two ends of the lifting rod (4) are connected between the two longitudinal bars. When the lifting cylinder (19) is fully extended, the upper surfaces of the multiple top blocks (5) on the lifting rod (4) protrude from the upper surface of the crossbeam (6). When the lifting cylinder (19) is fully retracted, the upper surfaces of the multiple top blocks (5) on the lifting rod (4) are lower than the upper surface of the crossbeam (6).

9. A lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1 or 8, characterized in that: The guide frame (1) has a relief groove (20) in the middle for accommodating the lifting rod (4).

10. A lifting platform for electrode group casting and welding of a lead-acid battery according to claim 1, characterized in that: One of the crossbeams (6) is provided with a positioning groove that is used to position the casting and welding mold.

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