Nickel-metal hydride battery shell stamping preparation equipment

Abstract

The utility model discloses stamping preparation equipment for a nickel-metal hydride battery shell. The stamping preparation equipment comprises a die bottom, a die wall and a lower die holder, according to the nickel-metal hydride battery shell stamping preparation equipment, a combined die core comprises a die bottom and die walls, the die bottom is slidably connected into an upper cavity of a lower die base, the die walls are symmetrically arranged on the four sides of the die bottom, step grooves matched with the die walls are formed in the edge of the top face of the die bottom, the bottoms of the die walls are inserted into the step grooves, and the die walls are attached to the inner wall of the upper cavity of the lower die base in a sliding mode; the adjacent sides of the die walls are attached to each other, the combined die cores in the upper die head and the lower die base are closed to conduct stamping machining, a nickel-metal hydride battery shell is formed, the combined die cores can be ejected out through a driving installation plate, an ejector rod and an ejector block of a first air cylinder, and the die walls and the die bottom of the ejected combined die cores can be directly detached. The problem that large friction is generated between the nickel-metal hydride battery shell and the mold wall during material returning is avoided, and meanwhile, the combined mold core slides in the upper cavity of the lower mold base, so that the combined mold core can be conveniently ejected out.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping processing, in particular to a device for stamping and preparing a nickel-hydrogen battery shell. Background Art

[0002] Nickel-metal hydride batteries are high-performance storage batteries. They are divided into high-voltage and low-voltage nickel-metal hydride batteries. The positive electrode active material of a nickel-metal hydride battery is Ni(OH)2 (called the NiO electrode), the negative electrode active material is a metal hydride, also known as a hydrogen storage alloy (the electrode is called the hydrogen storage electrode), and the electrolyte is a 6 mol / L potassium hydroxide solution.

[0003] The patent document with announcement number CN215314976U discloses a lithium battery shell stamping device, including a forming assembly, which includes a forming part and a buffer mechanism. The buffer mechanism is arranged between the forming part and the workbench. The bottom surface of the forming part is provided with a groove, and a top plate is provided in the groove. A movable plate is provided below the bottom surface of the workbench. A push rod is fixedly connected to the movable plate. The push rod passes through the bottom surface of the workbench and the forming part and is fixedly connected to the bottom surface of the top plate. Slide rails fixedly connected to the bottom surface of the workbench are provided on both sides of the movable plate. The two ends of the movable plate are slidably connected to the slide rails. Support legs are provided at the four corners of the bottom surface of the workbench. A support plate is provided between the support legs. A first cylinder is provided on the support plate directly below the movable plate. Compared with the prior art, the utility model, through the coordinated use of a second cylinder, a push rod and a top plate, can lift the stamped part after stamping is completed, making it convenient for staff to replace it and improving work efficiency.

[0004] Although the above-mentioned prior art can conveniently perform demolding processing, during processing, the battery casing located in the molded part is directly ejected by the ejector pin, and the outer wall of the battery casing and the inner cavity of the molded part will form a large friction, which affects the appearance of the fixed-length casing and increases the wear of the inner wall of the molded part. Therefore, a nickel-metal hydride battery casing stamping preparation equipment is proposed to optimize the above-mentioned prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a nickel-metal hydride battery shell stamping production equipment to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A nickel-metal hydride battery shell stamping preparation equipment includes a workbench, the top surface of the workbench is fixedly connected to a mounting frame, the inner side of the mounting frame is provided with a movable plate, the bottom surface of the movable plate is fixedly connected to an upper die head, the top surface of the workbench is fixedly installed with a lower die base corresponding to the upper die head, the lower die base is provided with a connected upper chamber and a lower chamber, the upper chamber is provided with a combined die core, the bottom inner side of the workbench is symmetrically fixedly connected to a first cylinder, the telescopic ends of the first cylinder are commonly fixedly connected to the mounting plate, the top surface of the mounting plate is evenly fixedly connected to a plurality of ejector rods, the top ends of the ejector rods are inserted into the lower die base and fixedly connected to an ejector block, the ejector rods slide through the top of the workbench and the bottom of the lower die base, and the ejector block corresponds to the die bottom;

[0008] The combined mold core includes a mold bottom and a mold wall. The mold bottom is slidably connected to the upper cavity of the lower mold base. The mold walls are symmetrically arranged on the four sides of the mold bottom. The top edge of the mold bottom is provided with a step groove that matches the mold wall. The bottom of the mold wall is inserted into the step groove. The mold wall slides in contact with the inner wall of the upper cavity of the lower mold base, and the adjacent sides of the mold wall fit together.

[0009] As a further solution of the present invention: both sides of the movable plate are inserted into the mounting frame and are slidably connected to the mounting frame, and symmetrical sliding grooves for the movable plate to be inserted and slided are provided on the mounting frame. A second cylinder is fixedly installed on the top surface of the mounting frame, and the telescopic end of the second cylinder slides through the top of the movable mounting frame and is fixedly connected to the movable plate.

[0010] As a further solution of the present invention: connecting holes are evenly opened on the edge of the movable plate corresponding to the upper die head, and matching ejector pins are passed through the connecting holes, and the ejector pins are in contact with the outer wall of the upper die head.

[0011] As a further solution of the present invention: the back of the mold wall is fixedly connected with a dovetail guide rail, and a dovetail groove is opened on the lower mold base corresponding to the dovetail guide rail, and the dovetail guide rail is adapted to the dovetail groove and is slidably connected.

[0012] As a further solution of the present invention: a top ring is slidably connected in the lower cavity of the lower mold base, the top ring rests on the bottom surface of the mold bottom, a plurality of springs are fixedly connected between the bottom surface of the top ring and the bottom surface of the lower cavity, and the middle cavity of the top ring corresponds to the top block.

[0013] As a further solution of the present invention: the first cylinder and the second cylinder are both connected to an external air supply device and a control switch.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model performs stamping processing by closing the mold with the combined mold core in the upper mold head and the lower mold base to form a nickel-metal hydride battery shell. The combined mold core can be ejected by the driving mounting plate, the ejector rod and the ejector block of the first cylinder. The mold wall and the mold bottom of the ejected combined mold core can be directly disassembled, avoiding the problem of large friction between the nickel-metal hydride battery shell and the mold wall when the material is withdrawn. At the same time, the combined mold core slides in the upper cavity of the lower mold base, which can conveniently eject the combined mold core and reduce the working pressure requirement of the first cylinder.

[0016] 2. Through the ejector pin and the connecting hole, when the upper die head is reset, the nickel-metal hydride battery shell that is partially stuck on the upper die head can be pushed down by the ejector pin to avoid the upper die head from getting stuck.

[0017] 3. The mold bottom is supported by the spring and the top ring, so that the mold bottom can be cushioned when the mold is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a nickel-metal hydride battery shell stamping and preparation equipment.

[0019] Figure 2 This is an enlarged view of A in a nickel-metal hydride battery casing stamping and preparation equipment.

[0020] Figure 3 This is an enlarged view of B in a nickel-metal hydride battery shell stamping and preparation equipment.

[0021] Figure 4 This is a top view of the lower die base in a nickel-metal hydride battery shell stamping and preparation equipment.

[0022] In the figure: 1. Workbench; 2. Mounting frame; 3. Movable plate; 4. Upper die head; 5. Lower die base; 6. Combined die core; 7. First cylinder; 8. Mounting plate; 9. Ejector rod; 10. Ejector block; 11. Die bottom; 12. Die wall; 13. Step groove; 14. Slide groove; 15. Second cylinder; 16. Through hole; 17. Ejector pin; 18. Dovetail guide rail; 19. Dovetail groove; 20. Ejector ring; 21. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1In the embodiment of the present utility model, a nickel-metal hydride battery shell stamping preparation equipment includes a workbench 1, the top surface of the workbench 1 is fixedly connected to a mounting frame 2, the inner side of the mounting frame 2 is provided with a movable plate 3, the bottom surface of the movable plate 3 is fixedly connected to an upper die head 4, the top surface of the workbench 1 is fixedly installed with a lower die base 5 corresponding to the upper die head 4, the lower die base 5 is provided with a connected upper chamber and a lower chamber, and the upper chamber is provided with a combined mold core 6, the bottom inner side of the workbench 1 is symmetrically fixedly connected with a first cylinder 7, the telescopic end of the first cylinder 7 is commonly fixedly connected to a mounting plate 8, the top surface of the mounting plate 8 is evenly fixedly connected with a plurality of ejector rods 9, the top end of the ejector rod 9 is inserted into the lower die base 5 and fixedly connected with a ejector block 10, the ejector rod 9 slides through the top of the workbench 1 and the bottom of the lower die base 5, and the ejector block 10 corresponds to the mold bottom 11;

[0025] The combined mold core 6 includes a mold bottom 11 and a mold wall 12. The mold bottom 11 is slidably connected to the upper cavity of the lower mold base 5. The mold wall 12 is symmetrically arranged on the four sides of the mold bottom 11. The top edge of the mold bottom 11 is provided with a step groove 13 that is compatible with the mold wall 12. The bottom of the mold wall 12 is inserted into the step groove 13. The mold wall 12 slides in contact with the inner wall of the upper cavity of the lower mold base 5, and the adjacent sides of the mold wall 12 are in contact with each other.

[0026] The nickel-metal hydride battery shell is formed by closing the mold with the combined mold core 6 in the upper mold head 4 and the lower mold base 5. The combined mold core 6 can be ejected by the driving mounting plate 8, the ejector rod 9 and the ejector block 10 of the first cylinder 7. The mold wall 12 and the mold bottom 11 of the ejected combined mold core 6 can be directly disassembled, avoiding the problem of large friction between the nickel-metal hydride battery shell and the mold wall 12 when the material is withdrawn. At the same time, the combined mold core 6 slides in the upper cavity of the lower mold base 5, which can conveniently eject the combined mold core 6 and reduce the working pressure requirement of the first cylinder 7.

[0027] See also Figure 1 The two sides of the movable plate 3 are inserted into the mounting frame 2 and are slidably connected to the mounting frame 2. The mounting frame 2 is symmetrically provided with sliding grooves 14 for the movable plate 3 to be inserted and slided. The top surface of the mounting frame 2 is fixedly installed with a second cylinder 15. The telescopic end of the second cylinder 15 slides through the top of the movable mounting frame 2 and is fixedly connected to the movable plate 3.

[0028] The second cylinder 15 can drive the movable plate 3 to move up and down, thereby facilitating the closing of the upper die head 4 and the lower die base 5 . At the same time, the cooperation of the slide groove 14 makes the movable plate 3 more stable when moving up and down.

[0029] See also Figure 3 , the movable plate 3 is evenly provided with connecting holes 16 on the edge corresponding to the upper die head 4 , and a matching ejector pin 17 is passed through the connecting hole 16 , and the ejector pin 17 is in contact with the outer wall of the upper die head 4 .

[0030] By cooperating with the communicating hole 16 , the ejector pin 17 can push down the nickel-metal hydride battery shell stuck on the upper die 4 when the upper die 4 is reset, thereby preventing the upper die 4 from getting stuck.

[0031] See also Figure 4 The back of the mold wall 12 is fixedly connected with a dovetail guide rail 18, and a dovetail groove 19 is opened on the lower mold base 5 corresponding to the dovetail guide rail 18. The dovetail guide rail 18 is adapted to the dovetail groove 19 and is slidably connected.

[0032] The cooperation between the dovetail guide rail 18 and the dovetail groove 19 makes the connection between the mold wall 12 and the inner wall of the lower mold base 5 more stable.

[0033] See also Figure 2 A top ring 20 is slidably connected in the lower cavity of the lower die base 5, and the top ring 20 rests on the bottom surface of the die bottom 11. A plurality of springs 21 are fixedly connected between the bottom surface of the top ring 20 and the bottom surface of the lower cavity, and the central hollow of the top ring 20 corresponds to the top block 10.

[0034] The mold bottom 11 is supported by the spring 21 in cooperation with the top ring 20, so as to form a buffer for the mold bottom 11 when the mold is closed.

[0035] The first cylinder 7 and the second cylinder 15 are both connected to an external air supply device and a control switch.

[0036] The working principle of this utility model is:

[0037] During use, the combined mold core 6 is filled into the lower mold base 5 and the raw materials are placed. At this time, the second cylinder 15 drives the movable plate 3 to descend, and then drives the upper mold head 4 to close the mold with the lower mold base 5. At this time, the nickel-metal hydride battery shell is formed in the combined mold core 6. The upper mold head 4 is further reset. At this time, the first cylinder 7 is started to lift the mounting plate 8, and then the mold bottom 11 is lifted through the push rod 9 and the push block 10 until the mold wall 12 completely protrudes from the lower mold base 5. At this time, the mold wall 12 can be directly sealed, and then the formed nickel-metal hydride battery shell can be removed to complete the processing of the nickel-metal hydride battery shell.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nickel-metal hydride battery shell stamping production equipment, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is fixedly connected to a mounting frame (2), an inner side of the mounting frame (2) is provided with a movable plate (3), an upper die head (4) is fixedly connected to the bottom surface of the movable plate (3), a lower die base (5) is fixedly installed on the top surface of the workbench (1) corresponding to the upper die head (4), an upper chamber and a lower chamber connected to each other are provided in the lower die base (5), a combined die core (6) is provided in the upper chamber, a first cylinder (7) is symmetrically fixedly connected to the inner side of the bottom of the workbench (1), the telescopic ends of the first cylinder (7) are fixedly connected to a mounting plate (8), a plurality of ejector rods (9) are evenly fixedly connected to the top surface of the mounting plate (8), the top ends of the ejector rods (9) are inserted into the lower die base (5) and are fixedly connected to an ejector block (10); The combined mold core (6) comprises a mold bottom (11) and a mold wall (12). The mold bottom (11) is slidably connected in the upper cavity of the lower mold base (5). The mold wall (12) is symmetrically arranged on four sides of the mold bottom (11). The top edge of the mold bottom (11) is provided with a step groove (13) adapted to the mold wall (12). The bottom of the mold wall (12) is inserted into the step groove (13). The mold wall (12) slides in contact with the inner wall of the upper cavity of the lower mold base (5), and adjacent sides of the mold wall (12) are in contact with each other.

2. The nickel-metal hydride battery shell stamping and manufacturing equipment according to claim 1, characterized in that: Both sides of the movable plate (3) are inserted into the mounting frame (2) and are slidably connected to the mounting frame (2); a sliding groove (14) for the movable plate (3) to be inserted and slid is symmetrically provided on the mounting frame (2); a second cylinder (15) is fixedly installed on the top surface of the mounting frame (2); the telescopic end of the second cylinder (15) slides through the top of the movable mounting frame (2) and is fixedly connected to the movable plate (3).

3. The nickel-metal hydride battery shell stamping production equipment according to claim 1, characterized in that: The movable plate (3) is evenly provided with connecting holes (16) on the edge corresponding to the upper die head (4), and a matching ejector pin (17) is passed through the connecting hole (16), and the ejector pin (17) is fitted with the outer wall of the upper die head (4).

4. The nickel-metal hydride battery shell stamping production equipment according to claim 1, characterized in that: The back of the mold wall (12) is fixedly connected with a dovetail guide rail (18), and a dovetail groove (19) is provided on the lower mold base (5) corresponding to the dovetail guide rail (18). The dovetail guide rail (18) and the dovetail groove (19) are adapted and slidably connected.

5. The nickel-metal hydride battery shell stamping production equipment according to claim 1, characterized in that: A top ring (20) is slidably connected in the lower cavity of the lower die seat (5), the top ring (20) rests against the bottom surface of the die bottom (11), and a plurality of springs (21) are fixedly connected between the bottom surface of the top ring (20) and the bottom surface of the lower cavity.

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