Cold heading device for square battery shell cover plate

Abstract

The utility model relates to the technical field of battery case cover plate cold heading, in particular to a square battery case cover plate cold heading device which comprises a bottom plate parallel to the horizontal plane, a supporting column is fixedly arranged on the top face of the bottom plate, a top plate is fixedly arranged at the top end of the supporting column, and a fixing base is fixedly arranged on the top face of the bottom plate. A plurality of second containing grooves are formed in the fixing base, the lower die assembly penetrates through the second containing grooves, spiral cooling grooves are formed in the side walls of the second containing grooves, spiral cooling pipes are arranged in the spiral cooling grooves, and an upper die assembly is arranged above the fixing base; firstly, the lower die assembly is provided with the spiral cooling pipe making contact with the lower die body, the lower die body is cooled in the cold heading machining process, and then the multiple lower die assemblies are independently fixed to the fixing base through the bolts, the fixing holes and the internal thread grooves; the bolt of a certain lower die assembly is detached, and then the lower die assembly can be detached independently to be replaced and repaired.

Description

Technical Field

[0001] The utility model relates to the technical field of cold forging of battery shell cover plates, in particular to a square battery shell cover plate cold forging device. Background Art

[0002] Cold heading is a new metal pressure processing technology, which is a processing method that applies external force to metal at room temperature to form it in a predetermined mold;

[0003] Cold heading technology is also used in the production process of battery shell cover plates. The existing square battery shell cover plate cold heading device lacks an effective heat dissipation mechanism during the cold heading process. During the high-load cold heading process, the temperature of the lower die seat is not easy to dissipate, which may affect the processing and use of the workpiece. Secondly, when the mold of the multi-station cold heading device is damaged, the entire mold needs to be removed for replacement and repair, which is costly. Utility Model Content

[0004] The utility model aims to provide a square battery shell cover plate cold heading device, which solves the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a square battery shell cover plate cold heading device, comprising a bottom plate parallel to a horizontal plane, a support column fixedly arranged on the top surface of the bottom plate, a top plate fixedly arranged on the top of the support column, a fixed seat fixedly arranged on the top surface of the bottom plate, a plurality of accommodating grooves II are opened on the fixed seat, the accommodating grooves II are penetrated by a lower die assembly, a spiral cooling groove is opened on the side wall of the accommodating grooves II, a spiral cooling pipe is arranged in the spiral cooling groove, and an upper die assembly is arranged above the fixed seat.

[0007] Furthermore, one end of the spiral cooling pipe is connected to the water outlet pipe, and the other end of the spiral cooling pipe is connected to the water inlet pipe. The water outlet pipe is above the water inlet pipe, and the end of the spiral cooling pipe connected to the water outlet pipe is located above the end of the spiral cooling pipe connected to the water inlet pipe, and the water outlet pipe and the water inlet pipe pass through one side wall of the fixed seat.

[0008] Furthermore, a accommodating groove 1 is opened downward on the top surface of the fixed seat, the axes of the accommodating groove 1 and the accommodating groove 2 are on the same plumb line and the accommodating groove 1 is connected to the accommodating groove 2, the lower mold assembly includes a connecting seat and a lower mold body, the lower mold body passes through the connecting seat and is fixedly connected to the connecting seat, the top surfaces of the connecting seat and the lower mold body are on the same horizontal plane, a square mold groove is opened downward on the top surface of the lower mold body, the connecting seat is arranged in the spiral cooling groove and the side wall of the connecting seat is in contact with the side wall of the spiral cooling groove, the connecting seat is also in contact with the spiral cooling pipe, and the lower mold body is arranged in the accommodating groove 1.

[0009] Furthermore, a top surface of the accommodating groove is downwardly provided with a plurality of internal thread grooves, the connecting seat is provided with fixing holes, the number of the fixing holes is the same as the number of the internal thread grooves, and the internal thread grooves are threadedly engaged with fixing bolts passing through the fixing holes.

[0010] Furthermore, the upper mold assembly includes a cylinder, a connecting plate and a square cold heading block, the cylinder is fixedly connected to the bottom surface of the top plate, the drive shaft of the cylinder is coaxially fixed with the telescopic rod, the telescopic rod is fixedly connected to the top surface of the connecting plate, the bottom surface of the connecting plate is fixedly provided with a square cold heading block that cooperates with the square die groove, and the number of the square cold heading blocks is the same.

[0011] Furthermore, a receiving groove three is provided downwardly on the top surface of the fixed seat, a sliding block is provided in the receiving groove three, a hydraulic shock absorber is provided between the bottom surface of the receiving groove three and the sliding block, the top end of the hydraulic shock absorber is fixedly connected to the bottom surface of the sliding block, the bottom end of the hydraulic shock absorber is fixedly connected to the bottom surface of the receiving groove three, a fixing column is fixedly provided on the bottom surface of the connecting plate, and the fixing column and the axis of the sliding block are in the same plumb plane.

[0012] Furthermore, telescopic rods 2 are provided on both sides of the cylinder, the top end of the telescopic rods 2 is fixedly connected to the bottom surface of the top plate, and the bottom end of the telescopic rods 2 is fixedly connected to the top surface of the connecting plate.

[0013] Furthermore, a receiving groove four is opened downwardly on the top surface of the connecting seat, and the head of the fixing bolt is located in the receiving groove four.

[0014] The utility model has the following beneficial effects:

[0015] The utility model has a spiral cooling groove in a receiving groove for receiving the lower die body, a spiral cooling pipe is arranged in the spiral cooling groove, the spiral cooling pipe is in contact with the outer wall of the lower die body, and the two ends of the spiral cooling pipe are respectively connected with the water inlet pipe and the water outlet pipe. During the cold heading process, cold water is injected into the water inlet pipe, and the cold water enters the spiral cooling pipe to cool the lower die body.

[0016] The multiple lower die assemblies of the utility model are all individually fixed on the fixing seat by bolts, fixing holes and internal thread grooves. The multiple lower die assemblies do not affect each other. By removing the bolts fixing a lower die assembly, the lower die assembly can be removed separately for replacement and repair.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the fixed seat structure;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0022] Figure 4 This is a schematic diagram of the structure of the second receiving tank of the utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the structure at B in FIG.

[0024] Figure 6 This is a schematic diagram of the structure of the spiral cooling tube of the utility model;

[0025] Figure 7 for Figure 1 Schematic diagram of the structure of the lower mold assembly;

[0026] Figure 8 for Figure 1 Schematic diagram of the upper die assembly structure;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] In the figure: 1, bottom plate; 101, fixing column; 102, top plate; 2, fixing seat; 201, receiving groove one; 202, receiving groove two; 203, spiral cooling groove; 204, receiving groove three; 2011, internal thread groove; 3, upper die assembly; 301, cylinder; 3011, telescopic rod one; 302, connecting plate; 303, square cold heading block; 304, fixing column; 305, telescopic rod two; 5, lower die assembly; 501, connecting seat; 502, lower die body; 5011, fixing hole; 5012, receiving groove four; 5021, square die groove; 6, spiral cooling pipe; 7, water outlet pipe; 8, water inlet pipe; 9, fixing bolt; 10, sliding block; 1001, hydraulic shock absorber. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] See also Figure 1-8As shown, the utility model is a square battery shell cover cold heading device, comprising a bottom plate 1 parallel to the horizontal plane, a support column 101 is fixedly arranged on the top surface of the bottom plate 1, a top plate 102 is fixedly arranged on the top of the support column 101, a fixing seat 2 is fixedly arranged on the top surface of the bottom plate 1, a plurality of receiving grooves 202 are opened on the fixing seat 2, the receiving grooves 202 are penetrated by the lower die assembly 5, a spiral cooling groove 203 is opened on the side wall of the receiving grooves 202, a spiral cooling pipe 6 is arranged in the spiral cooling groove 203, an upper die assembly 3 is arranged above the fixing seat 2, and the spiral cooling pipe 6 is arranged in the spiral cooling pipe 6. One end of the cooling pipe 6 is connected to the water outlet pipe 7, and the other end of the spiral cooling pipe 6 is connected to the water inlet pipe 8. The water outlet pipe 7 is above the water inlet pipe 8. The end of the spiral cooling pipe 6 connected to the water outlet pipe 7 is located above the end of the spiral cooling pipe 6 connected to the water inlet pipe 8. The water outlet pipe 7 and the water inlet pipe 8 pass through the side wall of the fixed seat 2. The top surface of the fixed seat 2 is provided with a receiving groove 201 downward. The axis of the receiving groove 201 and the receiving groove 202 are on the same plumb line and the receiving groove 201 is connected to the receiving groove 202. The lower mold assembly 5 includes a connecting seat 501 and The lower mold body 502 passes through the connecting seat 501 and is fixedly connected to the connecting seat 501. The top surfaces of the connecting seat 501 and the lower mold body 502 are in the same horizontal plane. The top surface of the lower mold body 502 is downwardly provided with a square mold groove 5021. The connecting seat 501 is arranged in the spiral cooling groove 203 and the side wall of the connecting seat 501 is in contact with the side wall of the spiral cooling groove 203. The connecting seat 501 is also in contact with the spiral cooling pipe 6. The lower mold body 502 is arranged in the receiving groove 201. In this embodiment, the raw material is first placed on the lower mold during the cold heading process. The lower die assembly 5 is provided with multiple lower die assemblies in the square die groove 5021 opened in the lower die body 502 of the assembly 5, and multiple raw materials can be cold headed at the same time, which can improve the cold heading efficiency of the cold heading device, and then the upper die assembly 3 is lowered to perform cold heading on the raw materials. The water inlet pipe 8 is connected to the external pipeline, and the drain pipe is connected to the external drainage pipeline. During processing, cold water is injected into the water inlet pipe 8, and the cold water enters the spiral cooling pipe 6. The spiral cooling pipe 6 contacts the outer wall of the lower die body 502, and the cold water passes through the spiral cooling pipe 6 to cool the lower die body 502, and then the spiral cooling pipe 6 is discharged from the drain pipe.

[0032] Among them, the top surface of the accommodating groove 201 is downwardly provided with multiple internal thread grooves 2011, and the connecting seat 501 is provided with fixing holes 5011. The number of the fixing holes 5011 is the same as that of the internal thread grooves 2011. The internal thread grooves 2011 are threadedly screwed with the fixing bolts 9 that pass through the fixing holes 5011. The top surface of the connecting seat 501 is downwardly provided with a accommodating groove 4 5012, and the head of the fixing bolt 9 is located in the accommodating groove 4 5012. In this embodiment, the lower mold assembly 5 is separately fixed to the fixing seat 2 by bolts, fixing holes 5011 and internal thread grooves 2011. The multiple lower mold assemblies 5 do not affect each other. By removing the bolts fixing a certain lower mold assembly 5, the lower mold assembly 5 can be removed separately for replacement and repair. After removing one or more lower mold assemblies 5, the remaining lower mold assemblies 5 of the cold heading device can still continue to perform cold heading processing. The head of the bolt is located in the accommodating groove 4 5012 to prevent the head of the bolt from colliding with the upper mold assembly 3.

[0033] The upper die assembly 3 includes a cylinder 301, a connecting plate 302 and a square cold heading block 303. The cylinder 301 is fixedly connected to the bottom surface of the top plate 102. The transmission shaft of the cylinder 301 is coaxially fixed with a telescopic rod 3011. The telescopic rod 3011 is fixedly connected to the top surface of the connecting plate 302. The bottom surface of the connecting plate 302 is fixedly provided with a square cold heading block 303 that cooperates with the square die groove 5021. The number of the square cold heading blocks 303 is the same as that of the cylinder 301. 1 is provided with a second telescopic rod 305 on both sides, the top end of the second telescopic rod 305 is fixedly connected to the bottom surface of the top plate 102, and the bottom end of the second telescopic rod 305 is fixedly connected to the top surface of the connecting plate 302. In this embodiment, during cold forging, the cylinder 301 is driven to extend the telescopic rod 1 3011, and the extension of the telescopic rod 1 3011 drives the connecting plate 302 and the square cold forging block 303 to perform cold forging on the raw material, and the second telescopic rod 305 strengthens the connection between the connecting plate 302 and the top plate 102.

[0034] Among them, a receiving groove three 204 is opened downward on the top surface of the fixed seat 2, and a sliding block 10 is arranged in the receiving groove three 204. A hydraulic shock absorber 1001 is arranged between the bottom surface of the receiving groove three 204 and the sliding block 10. The top of the hydraulic shock absorber 1001 is fixedly connected to the bottom surface of the sliding block 10, and the bottom end of the hydraulic shock absorber 1001 is fixedly connected to the bottom surface of the receiving groove three 204. A fixing column 304 is fixedly arranged on the bottom surface of the connecting plate 302, and the fixing column 304 and the axis of the sliding block 10 are in the same plumb plane. In this embodiment, during the cold heading process, before the connecting plate 302 contacts the fixed seat 2, the fixing column 304 will first contact the sliding block 10 and compress the hydraulic shock absorber 1001. The hydraulic shock absorber 1001 is deformed and buffers and damps the upper mold assembly 3 to prevent the connecting plate 302 from having a violent rigid collision with the fixed seat 2.

[0035] It can be understood that, firstly, the utility model is provided with a spiral cooling tube 6 in contact with the lower die body 502, so as to cool the lower die body 502 during the cold heading process. Secondly, multiple lower die assemblies 5 are individually fixed to the fixing base 2 by bolts, fixing holes 5011 and internal thread grooves 2011. By removing the bolts of a certain lower die assembly 5, the lower die assembly 5 can be removed separately for replacement and repair.

[0036] A specific application of this embodiment is: when performing cold heading processing, the raw material is first placed in the square die groove 5021 opened in the lower die body 502 of the lower die assembly 5. The lower die assembly 5 is provided with multiple pieces, and multiple raw materials can be cold headed at the same time, which can improve the cold heading efficiency of the cold heading device. Then, the cylinder 301 is driven to extend the telescopic rod 1 3011. The extension of the telescopic rod 1 3011 drives the connecting plate 302 and the square cold heading block 303 to perform cold heading processing on the raw material. Telescopic rods 2 305 are provided on both sides of the telescopic rod 1 3011. The telescopic rods 2 305 strengthen the connection between the connecting plate 302 and the top plate 102. Before the connecting plate 302 contacts the fixed seat 2, the fixed column 304 will first contact the sliding block 10 and compress the hydraulic shock absorber 1001. The hydraulic shock absorber The vibrator 1001 is deformed and cushions the upper die assembly 3 to prevent a violent rigid collision between the connecting plate 302 and the fixing seat 2. During the cold forging process, cold water is injected into the water inlet pipe 8, and the cold water enters the spiral cooling pipe 6. The spiral cooling pipe 6 contacts the outer wall of the lower die body 502. The cold water cools the lower die body 502 through the spiral cooling pipe 6. The lower die assembly 5 is individually fixed to the fixing seat 2 by bolts, fixing holes 5011 and internal thread grooves 2011. Multiple lower die assemblies 5 do not affect each other. By removing the bolts fixing a certain lower die assembly 5, the lower die assembly 5 can be removed separately for replacement and repair. After removing one or more lower die assemblies 5, the remaining lower die assemblies 5 of the cold forging device can continue to be cold forging.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A square battery shell cover cold heading device, comprising a bottom plate (1) parallel to a horizontal plane, a support column (101) fixedly arranged on the top surface of the bottom plate (1), and a top plate (102) fixedly arranged on the top of the support column (101), characterized in that: A fixing seat (2) is fixedly arranged on the top surface of the bottom plate (1), and a plurality of receiving grooves (202) are provided on the fixing seat (2), and the receiving grooves (202) are penetrated by the lower mold assembly (5). A spiral cooling groove (203) is provided on the side wall of the receiving groove (202), and a spiral cooling pipe (6) is arranged in the spiral cooling groove (203). An upper mold assembly (3) is arranged above the fixing seat (2).

2. A square battery shell cover cold heading device according to claim 1, characterized in that: One end of the spiral cooling pipe (6) is connected to the water outlet pipe (7), and the other end of the spiral cooling pipe (6) is connected to the water inlet pipe (8). The water outlet pipe (7) is located above the water inlet pipe (8). The end of the spiral cooling pipe (6) connected to the water outlet pipe (7) is located above the end of the spiral cooling pipe (6) connected to the water inlet pipe (8). The water outlet pipe (7) and the water inlet pipe (8) penetrate a side wall of the fixing seat (2).

3. A square battery shell cover cold heading device according to claim 1, characterized in that: The top surface of the fixed seat (2) is provided with a receiving groove (201) downwardly, the axes of the receiving groove (201) and the receiving groove (202) are on the same vertical line and the receiving groove (201) and the receiving groove (202) are connected, the lower mold assembly (5) comprises a connecting seat (501) and a lower mold body (502), the lower mold body (502) passes through the connecting seat (501) and is fixedly connected to the connecting seat (501), and the connecting seat (5 01) and the top surface of the lower mold body (502) are in the same horizontal plane, the top surface of the lower mold body (502) is downwardly opened with a square mold groove (5021), the connecting seat (501) is arranged in the spiral cooling groove (203) and the side wall of the connecting seat (501) is in contact with the side wall of the spiral cooling groove (203), the connecting seat (501) is also in contact with the spiral cooling pipe (6), and the lower mold body (502) is arranged in the accommodating groove one (201).

4. A square battery shell cover plate cold heading device according to claim 3, characterized in that: The top surface of the accommodating groove (2011) is provided with a plurality of internal thread grooves (2011) downwardly, and the connecting seat (501) is provided with fixing holes (5011), the number of the fixing holes (5011) is the same as the number of the internal thread grooves (2011), and the internal thread grooves (2011) are threadedly engaged with fixing bolts (9) passing through the fixing holes (5011).

5. A square battery shell cover cold heading device according to claim 1, characterized in that: The upper die assembly (3) comprises a cylinder (301), a connecting plate (302) and a square cold heading block (303); the cylinder (301) is fixedly connected to the bottom surface of the top plate (102); the transmission shaft of the cylinder (301) is coaxially fixed with a telescopic rod (3011); the telescopic rod (3011) is fixedly connected to the top surface of the connecting plate (302); a square cold heading block (303) matching with a square die groove (5021) is fixedly arranged on the bottom surface of the connecting plate (302); the number of the square cold heading blocks (303) is the same as that of (2021).

6. A square battery case cover plate cold heading device according to claim 5, characterized in that: The top surface of the fixed seat (2) is provided with a receiving groove three (204) downwardly, a sliding block (10) is arranged in the receiving groove three (204), a hydraulic shock absorber (1001) is arranged between the bottom surface of the receiving groove three (204) and the sliding block (10), the top end of the hydraulic shock absorber (1001) is fixedly connected to the bottom surface of the sliding block (10), the bottom end of the hydraulic shock absorber (1001) is fixedly connected to the bottom surface of the receiving groove three (204), and a fixing column (304) is fixedly arranged on the bottom surface of the connecting plate (302), and the axis of the fixing column (304) and the sliding block (10) are in the same plumb plane.

7. A square battery case cover plate cold heading device according to claim 5, characterized in that: A second telescopic rod (305) is provided on both sides of the cylinder (301), the top end of the second telescopic rod (305) is fixedly connected to the bottom surface of the top plate (102), and the bottom end of the second telescopic rod (305) is fixedly connected to the top surface of the connecting plate (302).

8. A square battery case cover plate cold heading device according to claim 4, characterized in that: The top surface of the connecting seat (501) is provided with a receiving groove four (5012) downwardly, and the head of the fixing bolt (9) is located in the receiving groove four (5012).

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