Frame bending device for composite electrode grid machining

Abstract

The utility model discloses a frame bending device for composite electrode grid processing, which comprises a workbench and a U-shaped bending area arranged on the workbench, the top of the U-shaped bending area is provided with a top positioning strip, two sides of the U-shaped bending area are provided with side positioning strips, the workbench is provided with a top clamping mechanism and a side clamping mechanism, and the top clamping mechanism and the side clamping mechanism are arranged on the workbench. Material guiding mechanisms are symmetrically arranged on the two sides of the top of the U-shaped bending area and comprise fixing strips and lifting strips, material guiding channels are formed between the fixing strips and the lifting strips, lifting air cylinders are installed on the portions, close to the fixing strips, of the workbench, and the ends of piston rods of the lifting air cylinders are connected with the lifting strips through connecting rods. Through holes are symmetrically machined in the two sides of the top positioning strip, rotating discs are arranged in the through holes, positioning columns are concentrically arranged in the centers of the rotating discs, bending columns are arranged on one sides of the rotating discs, and tail forming mechanisms are arranged at the tails of the two sides of the U-shaped bending area. In conclusion, the automatic forming machine has the advantages of high automation degree, high working efficiency and good forming effect.

Description

Technical Field

[0001] This utility model relates to the field of plate grid frame bending technology, specifically to a frame bending device for processing composite electrode plate grids. Background Technology

[0002] The electrode grid is a major component of a lead-acid battery, serving as the current-collecting skeleton of the electrodes. It conducts and collects current, ensuring uniform current distribution, and supports the active material. It acts as a carrier for the lead paste, the active material; the lead paste is applied to the grid and cured to form the electrode plates. The charging and discharging of a lead-acid battery is primarily accomplished by the grid. A mesh-type electrode grid includes tabs, a frame, and ribs forming a crisscrossing mesh structure within the frame. During charging, electricity is transferred from the outside to the tabs of the grid, then sequentially to the frame and ribs. The discharging sequence is exactly the reverse. During the manufacturing process of the electrode grid, the frame needs to be bent and shaped. Existing bending devices suffer from poor forming results, low efficiency, long processing times, and low automation, failing to meet the needs of enterprises for frame bending. Therefore, developing a highly automated, efficient, and effective frame bending device for composite electrode grid processing is objectively necessary. Utility Model Content

[0003] The purpose of this invention is to provide a frame bending device for processing composite electrode grids with a high degree of automation, high work efficiency, and good forming effect.

[0004] The purpose of this utility model is achieved as follows: It includes a workbench and a U-shaped bending area set on the workbench. A top positioning strip is provided at the top of the U-shaped bending area, and side positioning strips are provided on both sides. A top clamping mechanism is provided on the workbench opposite to the top positioning strip, and a side clamping mechanism is provided on the workbench opposite to the side positioning strips. Material guiding mechanisms are symmetrically arranged on both sides of the top of the U-shaped bending area. The material guiding mechanism includes a fixed strip and a lifting strip, forming a material guiding channel between the fixed strip and the lifting strip. A lifting cylinder is installed on the workbench near the fixed strip. The piston rod end of the lifting cylinder is connected to the lifting strip via a connecting rod. Symmetrical through holes are machined on both sides of the top positioning strip, and a turntable is installed in each through hole. A positioning post is concentrically arranged at the center of the turntable, and a bending post is provided on one side of the turntable. A bending drive mechanism for driving the turntable to rotate forward and backward is installed on the workbench. Tail forming mechanisms are provided at the tail ends on both sides of the U-shaped bending area.

[0005] Furthermore, a sensor is provided at the end of one of the feeding mechanisms.

[0006] Furthermore, the top clamping mechanism includes a top clamping cylinder and a top clamping block disposed at the end of the piston rod of the top clamping cylinder, the top clamping block being configured to cooperate with the top positioning strip.

[0007] Furthermore, the side clamping mechanism includes a motor and a crank rod mounted on the motor output shaft. A side clamping block is provided at the end of the crank rod. The motor is mounted on the lower surface of the worktable. An opening is machined on the worktable. The side clamping block passes through the opening and cooperates with the side positioning strip.

[0008] Furthermore, the bending drive mechanism includes a frame and a bending drive cylinder mounted on the frame. The frame is mounted on the lower surface of the worktable, and a rotating shaft is set at the center of the turntable. The lower end of the rotating shaft is rotatably connected to the frame, and a gear is set on the rotating shaft. The piston rod end of the bending drive cylinder is provided with a rack that meshes with the gear.

[0009] Furthermore, a positioning block is provided on the frame, and a groove is machined laterally on one side of the positioning block. The rack is slidably installed in the groove via a slider.

[0010] Furthermore, the tail forming mechanism includes an L-shaped bracket and a tail forming cylinder mounted on the L-shaped bracket. The short side of the L-shaped bracket is fixed to the worktable. The opening between the L-shaped bracket and the worktable faces the direction of the guiding mechanism. The piston rod end of the tail forming cylinder is slidably connected to a push block. A guide block is provided on the worktable on one side of the push block. A strip-shaped guide hole is machined on the guide block at an angle. A guide rod is provided on the push block. The guide rod is movably inserted into the guide hole. A movable mold is provided on the side wall of the guide block. A fixed mold matching the movable mold is provided on the worktable.

[0011] In operation, the straightened composite electrode material is inserted into the guide channel of one of the guiding mechanisms and continues to extend along the guide channel until the end of the composite electrode material reaches the end of the guide channel of the other guiding mechanism. At this point, the length of the composite electrode material meets the requirements. Feeding is stopped, and the composite electrode material is cut using an existing cutting mechanism. The top clamping mechanism, in conjunction with the top positioning bar, clamps the middle part of the composite electrode material, thus clamping it. The lifting cylinder is then activated, causing the lifting bar to move upward, freeing up the space for the composite electrode material to fold. The bending path is initiated, and the bending drive mechanism is activated, driving the turntable to rotate. The turntable drives the bending column on it to rotate, and as the bending column rotates, it causes both ends of the composite electrode material to bend until the composite electrode material is bent to the required angle. At this point, the entire composite electrode material is bent into a U-shaped frame. The side clamping mechanism cooperates with the side positioning strip to clamp both sides of the U-shaped frame. Finally, the tail forming mechanism bends and forms the tail of the U-shaped frame, thus completing the bending work of the composite electrode grid frame. Each mechanism then resets to prepare for the next bending operation. In this invention, through the coordinated operation of various mechanisms, the processing of the composite electrode plate grid frame is carried out in a fully automated assembly line after the material enters the device. This high degree of mechanization not only saves labor costs but also improves work efficiency. Furthermore, by eliminating manual intervention, potential errors are reduced, improving the efficiency and quality of frame bending. The bending and forming effect is better, and the standardization of frame bending is enhanced. This results in good consistency and high yield of the manufactured composite electrode plate grid frames, reducing the defect rate and scrap rate after bending, thus meeting the bending processing needs of enterprises for composite electrode plate grid frames. In summary, this invention has the advantages of high automation, high work efficiency, and good forming effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the composite electrode plate grid frame 31 after bending and forming according to this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model in standby mode;

[0014] Figure 3 This is a schematic diagram of the structure of the present invention in its working state;

[0015] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0016] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of BB;

[0017] Figure 6 for Figure 3 A schematic diagram of the cross-sectional structure of the C-C section;

[0018] Figure 7 This is a schematic diagram of the structure of the guide block 26 in this utility model;

[0019] Figure 8 This is a schematic diagram of the bending drive mechanism in this utility model;

[0020] Figure 9 for Figure 8 Schematic diagram of the cross-sectional structure of DD;

[0021] In the diagram: 1-Workbench, 2-Top positioning strip, 3-Side positioning strip, 4-Fixing strip, 5-Lifting strip, 6-Guide channel, 7-Lifting cylinder, 8-Turntable, 9-Positioning column, 10-Bending column, 11-Sensor, 12-Top clamping cylinder, 13-Top clamping block, 14-Motor, 15-Crank rod, 16-Side clamping block, 17-Frame, 18-Bending drive cylinder, 19-Rotating shaft, 20-Gear, 21-Rack, 22-Positioning block, 23-L-shaped bracket, 24-Tail forming cylinder, 25-Push block, 26-Guide block, 27-Guide hole, 28-Guide rod, 29-Moving mold, 30-Fixed mold, 31-Frame. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but this description is not intended to limit the present invention in any way. Any changes or improvements made based on the present invention shall fall within the protection scope of the present invention.

[0023] like Figures 1-9As shown, this utility model includes a workbench 1 and a U-shaped bending area disposed on the workbench 1. The U-shaped bending area is used for bending the frame 31. A top positioning strip 2 is provided at the top of the U-shaped bending area, and side positioning strips 3 are provided on both sides. A top clamping mechanism is provided on the workbench 1 opposite to the top positioning strip 2. The top clamping mechanism cooperates with the top positioning strip 2 to clamp the middle part of the composite electrode material. A side clamping mechanism is provided on the workbench 1 opposite to the side positioning strips 3. The side clamping mechanism cooperates with the side positioning strips 3 to clamp the two sides of the composite electrode grid frame 31. A material guiding mechanism is symmetrically arranged on both sides of the top of the U-shaped bending area. The material guiding mechanism includes... A material guide channel 6 is formed between a fixed bar 4 and a lifting bar 5. A lifting cylinder 7 is installed on the worktable 1. The piston rod end of the lifting cylinder 7 is connected to the lifting bar 5 through a connecting rod. Through holes are symmetrically machined on both sides of the top positioning bar 2. A turntable 8 is set in the through holes. A positioning post 9 is concentrically set in the center of the turntable 8. A bending post 10 is set on one side of the turntable 8. A bending drive mechanism that drives the turntable 8 to rotate forward and backward is installed on the worktable 1. The bending drive mechanism is existing technology and is used to drive the turntable 8 to rotate. Tail forming mechanisms are set at the tails on both sides of the U-shaped bending area. The tail forming mechanisms are used to bend the tail of the composite electrode plate grid frame 31.

[0024] In operation, the straightened composite electrode material is inserted into the guide channel 6 of one of the guiding mechanisms and continues to extend along the guide channel 6 until the end of the composite electrode material reaches the end of the guide channel 6 of the other guiding mechanism. At this point, the length of the composite electrode material meets the requirements. Feeding is stopped, and the composite electrode material is cut using an existing cutting mechanism. The top clamping mechanism, in conjunction with the top positioning bar 2, clamps the middle part of the composite electrode material, thus clamping it. The lifting cylinder 7 is then activated, causing the lifting bar 5 to move upward, clearing a path for the composite electrode material to bend. The bending drive mechanism is activated, which drives the turntable 8 to rotate. The turntable 8 drives the bending column 10 on it to rotate. When the bending column 10 rotates, it drives the two ends of the composite electrode material to bend until the composite electrode material is bent to the required angle and stops. At this time, the entire composite electrode material is bent into a U-shaped frame 31. The side clamping mechanism cooperates with the side positioning strip 3 to clamp the two sides of the U-shaped frame 31. Finally, the tail forming mechanism bends and forms the tail of the U-shaped frame 31, thus completing the bending work of the composite electrode grid frame 31. Each mechanism is reset to prepare for the next bending work.

[0025] In this utility model, through the cooperation of various mechanisms, after the material enters the device, the processing and manufacturing of the composite electrode plate grid frame 31 adopts a fully automated assembly line operation with a high degree of mechanization. This not only saves labor costs but also improves work efficiency. At the same time, by avoiding manual intervention, the potential for human error is reduced, improving the efficiency and quality of bending the frame 31. The bending and forming effect is better, and the standardization of the frame bending is improved. This results in the composite electrode plate grid frame 31 having good consistency and yield, reducing the defect rate and scrap rate after bending the frame 31, and meeting the bending processing needs of enterprises for the composite electrode plate grid frame 31.

[0026] A sensor 11 is installed at the end of one of the material guiding mechanisms. The sensor 11 is an existing sensing instrument used to sense the position of the composite electrode material. When the end of the composite electrode material reaches the end of the material guiding channel 6, the end of the composite electrode material abuts against the sensor 11. After the sensor 11 senses this, it indicates that the composite electrode material has reached the required position and the length meets the requirements. The controller then sends a signal to the cutting mechanism to cut the composite electrode material, thereby improving the automation level of the device during the bending process, increasing bending efficiency, and improving bending accuracy.

[0027] The top clamping mechanism includes a top clamping cylinder 12 and a top clamping block 13 disposed at the end of the piston rod of the top clamping cylinder 12. The top clamping block 13 is configured to cooperate with the top positioning strip 2. During operation, the straightened composite electrode material is located in the guide channel 6. Before the bending begins after shearing, the top clamping cylinder 12 is activated. The top clamping cylinder 12 drives the top clamping block 13 to move towards the top positioning strip 2 until it reaches the position of the top positioning strip 2. At this time, the composite electrode material is located between the top clamping block 13 and the top positioning strip 2, so that the composite electrode material is clamped and fixed firmly, preventing the frame 31 from shifting during the bending process and ensuring the bending quality.

[0028] The side clamping mechanism includes a motor 14 and a crank 15 mounted on the output shaft of the motor 14. A side clamping block 16 is provided at the end of the crank 15. The motor 14 is mounted on the lower surface of the worktable 1. An opening is machined on the worktable 1. The side clamping block 16 passes through the opening and engages with the side positioning strip 3. During operation, after the bending column 10 completes the bending process of the composite electrode material, the motor 14 drives the crank 15 and the side clamping block 16 to rotate, causing the side clamping block 16 to rotate to the position of the side positioning strip 3. At this time, the composite electrode material is located between the side clamping block 16 and the side positioning strip 3, and the side clamping block 16 and the side positioning strip 3 firmly fix the composite electrode material, so that the bending angle of the composite electrode material after bending reaches the required angle, and facilitates the subsequent bending and forming of the tail end, preventing displacement of the composite electrode material. After the bending of the frame 31 is completed, the motor 14 reverses and drives the side clamping block 16 away from the side positioning strip 3, which facilitates the removal of the frame 31 and the bending operation of the next frame 31.

[0029] The bending drive mechanism includes a frame 17 and a bending drive cylinder 18 mounted on the frame 17. The frame 17 is mounted on the lower surface of the worktable 1. A rotating shaft 19 is located at the center of the turntable 8. The lower end of the rotating shaft 19 is rotatably connected to the frame 17. A gear 20 is mounted on the rotating shaft 19. A rack 21 that meshes with the gear 20 is located at the end of the piston rod of the bending drive cylinder 18. During operation, the bending drive cylinder 18 drives the rack 21 to move back and forth, thereby driving the gear 20 to rotate in both directions. This, in turn, drives the rotating shaft 19 and the turntable 8 to rotate, ultimately driving the bending column 10 to rotate, thus achieving the bending of the composite electrode material.

[0030] A positioning block 22 is provided on the frame 17. A groove is machined laterally on one side of the positioning block 22. The rack 21 is slidably installed in the groove by a slider. During operation, the bending drive cylinder 18 drives the rack 21 to move back and forth, thereby driving the gear 20 to rotate forward and backward. However, considering that the rack 21 may be displaced during use, or even disengage from the gear 20, affecting the normal operation of the device, the positioning block 22 is provided to avoid this problem. On the one hand, it guides the movement of the rack 21, and on the other hand, it limits and supports the rack 21 to prevent displacement and skew, and ensures that the rack 21 can mesh well with the gear 20.

[0031] The tail forming mechanism includes an L-shaped bracket 23 and a tail forming cylinder 24 mounted on the L-shaped bracket 23. The short side of the L-shaped bracket 23 is fixed to the worktable 1. The opening between the L-shaped bracket 23 and the worktable 1 faces the direction of the guiding mechanism. The piston rod end of the tail forming cylinder 24 is slidably connected to a push block 25. A guide block 26 is provided on one side of the worktable 1, and a strip-shaped guide hole 27 is machined obliquely on the guide block 26. A guide rod 28 is provided on the push block 25, and the guide rod 28 is movably inserted into the guide hole 27. A movable mold 29 is provided on the side wall of the guide block 26, and a fixed mold 30 matching the movable mold 29 is provided on the worktable 1. The movable mold 29 and the fixed mold 30 are configured to cooperate, and their closing shape matches the bending shape of the tail of the frame 31. In use, the movable mold 29 and the fixed mold 30 clamp the tail of the frame 31 and press it into the required shape. When the bending process begins, the end of the composite electrode material being bent passes through the gap between the L-shaped bracket 23 and the worktable 1, and then abuts against the side of the fixed mold 30. The tail forming cylinder 24 is activated, causing the push block 25 to extend forward, which in turn moves the guide rod 28 and the movable mold 29 towards the fixed mold 30. During this movement, because the guide hole 27 is inclined downwards, the guide rod 28 moves downwards, causing the push block 25 and the movable mold 29 to move downwards until they reach the worktable 1. At this position, the movable mold 29 drives the composite electrode material to move towards the fixed mold 30 until the composite electrode material is tightly clamped between the movable mold 29 and the fixed mold 30, and the bending and forming of the composite electrode material is completed. This is a pressing and forming structure. The bending and forming of the tail of the composite electrode grid frame 31 is completed. After completing one pressing and forming operation, the piston rod of the tail forming cylinder 24 retracts to its original position. During the retraction process, the movable mold 29 rises away from the worktable 1, which facilitates the removal of the frame 31 and also facilitates the bending of the frame 31 in the next operation.

[0032] The composite electrode grid in this invention mainly includes a frame 31 and internal ribs, and the frame 31 and ribs are a structure in which an aluminum core with a diameter of 1.6 mm is covered with an outer layer.

Claims

1. A frame bending device for processing composite electrode grids, comprising a worktable (1) and a U-shaped bending area disposed on the worktable (1), characterized in that: A top positioning strip (2) is provided at the top of the U-shaped bending area, and side positioning strips (3) are provided on both sides. A top clamping mechanism is provided on the workbench (1) opposite to the top positioning strip (2), and a side clamping mechanism is provided on the workbench (1) opposite to the side positioning strips (3). A material guiding mechanism is symmetrically provided on both sides of the top of the U-shaped bending area. The material guiding mechanism includes a fixed strip (4) and a lifting strip (5). A material guiding channel (6) is formed between the fixed strip (4) and the lifting strip (5). A lifting cylinder (7) is installed on the worktable (1). The piston rod end of the lifting cylinder (7) is connected to the lifting bar (5) through a connecting rod. The top positioning bar (2) has symmetrical through holes on both sides. A turntable (8) is installed in the through hole. A positioning column (9) is concentrically installed in the center of the turntable (8). A bending column (10) is installed on one side of the turntable (8). A bending drive mechanism that drives the turntable (8) to rotate forward and backward is installed on the worktable (1). A tail forming mechanism is installed at the tail of both sides of the U-shaped bending area.

2. The frame bending device for processing composite electrode grids according to claim 1, characterized in that: A sensor (11) is provided at the end of one of the feeding mechanisms.

3. The frame bending device for processing composite electrode grids according to claim 1, characterized in that: The top clamping mechanism includes a top clamping cylinder (12) and a top clamping block (13) disposed at the end of the piston rod of the top clamping cylinder (12). The top clamping block (13) is configured to cooperate with the top positioning strip (2).

4. The frame bending device for processing composite electrode grids according to claim 1, characterized in that: The side clamping mechanism includes a motor (14) and a crank (15) mounted on the output shaft of the motor (14). A side clamping block (16) is provided at the end of the crank (15). The motor (14) is mounted on the lower surface of the workbench (1). An opening is machined on the workbench (1). The side clamping block (16) passes through the opening and is engaged with the side positioning strip (3).

5. The frame bending device for processing composite electrode grids according to claim 1, characterized in that: The bending drive mechanism includes a frame (17) and a bending drive cylinder (18) mounted on the frame (17). The frame (17) is mounted on the lower surface of the workbench (1). A rotating shaft (19) is provided at the center of the turntable (8). The lower end of the rotating shaft (19) is rotatably connected to the frame (17). A gear (20) is provided on the rotating shaft (19). A rack (21) that meshes with the gear (20) is provided at the end of the piston rod of the bending drive cylinder (18).

6. The frame bending device for processing composite electrode grids according to claim 5, characterized in that: The frame (17) is provided with a positioning block (22), and a groove is machined laterally on one side of the positioning block (22). The rack (21) is slidably installed in the groove by a slider.

7. The frame bending device for processing composite electrode grids according to claim 1, characterized in that: The tail forming mechanism includes an L-shaped bracket (23) and a tail forming cylinder (24) mounted on the L-shaped bracket (23). The short side of the L-shaped bracket (23) is fixed on the worktable (1). The opening between the L-shaped bracket (23) and the worktable (1) faces the direction of the guiding mechanism. The piston rod end of the tail forming cylinder (24) is slidably connected to a push block (25). A guide block (26) is provided on the worktable (1) on one side of the push block (25). A strip-shaped guide hole (27) is obliquely machined on the guide block (26). A guide rod (28) is provided on the push block (25). The guide rod (28) is movably inserted into the guide hole (27). A movable mold (29) is provided on the side wall of the guide block (26). A fixed mold (30) matching the movable mold (29) is provided on the worktable (1).

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