Demoulding mechanism for cold heading of battery cell pole

Abstract

The utility model relates to the technical field of battery cell pole demoulding, in particular to a demoulding mechanism for cold heading of a battery cell pole, which comprises a base, a mould main body arranged on the top surface of the base, a mould groove arranged on the mould main body, a bearing plate arranged in the mould groove, a side wall of the bearing plate attached to a side wall of the mould groove, and a containing groove downwards arranged on the bottom surface of the mould groove. The outer diameter of the containing groove is smaller than that of the die groove, a lower straight groove is formed in the bottom face of the containing groove downwards, a horizontal straight groove is formed in the side wall of the die body, a piston block is arranged in the horizontal straight groove, and the outer wall of the piston block is attached to the side wall of the horizontal straight groove. Firstly, a push plate is pushed to drive a horizontal straight rod and a piston block to move towards a lower straight groove, air is extruded to increase the air pressure in the lower straight groove, so that a bearing plate in a mold groove moves upwards, demolding is facilitated, and the bottom surface of a battery cell pole is subjected to uniform force to prevent the bottom surface of the battery cell pole from being damaged during demolding; the first spring can restore and exert upward force on the bearing plate to help the bearing plate move upwards.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding of battery core poles, in particular to a demoulding mechanism for cold heading of battery core poles. Background Art

[0002] Cold heading is a forging method that uses a die to perform local upsetting of metal bars at room temperature. It can reduce or replace cutting processes. The battery cell pole is one of the important components of the battery and can also be formed by cold heading dies.

[0003] Patent publication number CN216420969U discloses a cold heading forming die for battery terminals of new energy vehicles, comprising a base and an outer die. The upper end face of the outer die is provided with a mounting groove, an adjustable inner core is provided in the mounting groove, a forming cavity is provided on the upper end face of the inner core, an oil groove is provided on the inner wall of the mounting groove, a filter element is provided in the oil groove, the outer die is located in the middle of the upper end face of the base, two adjustable ejector rods are provided on the upper end face of the base corresponding to the bottom of the inner core, and an adjustable pressure push rod is provided in the middle of one end face of the base;

[0004] Although this new energy vehicle battery terminal cold heading forming mold can lift the inner core in the outer mold by using an adjustable ejector pin installed on the base, thereby realizing rapid disassembly and replacement of the inner core and improving the processing efficiency of cold heading forming, the area of ​​the ejector pin is small. When the bottom surface of the inner core is lifted by the ejector pin, the contact point between the inner core and the ejector pin will be subjected to a large force, which may cause damage to the contact point between the bottom surface of the inner core and the ejector pin. Utility Model Content

[0005] The purpose of the utility model is to provide a demoulding mechanism for cold heading of a battery cell pole, which solves the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a demolding mechanism for cold forging of battery cell poles, comprising a base, which is arranged parallel to a horizontal plane, a mold body fixedly arranged on the top surface of the base, a mold groove downwardly provided on the top surface of the mold body, a carrying plate arranged in the mold groove, side walls of the carrying plate fit with the side walls of the mold groove, a receiving groove downwardly provided on the bottom surface of the mold groove, the outer diameter of the receiving groove is smaller than the outer diameter of the mold groove, a lower straight groove downwardly provided on the bottom surface of the receiving groove, a horizontal straight groove provided on the side wall of the mold body, the horizontal straight groove being connected to the lower straight groove, a piston block arranged in the horizontal straight groove, and the outer wall of the piston block fits with the side wall of the horizontal straight groove.

[0008] Furthermore, one side of the piston block is fixedly connected to a horizontal straight rod, the horizontal straight rod is parallel to the horizontal straight groove, and the outer diameter of the horizontal straight rod is smaller than the outer diameter of the horizontal straight groove.

[0009] Furthermore, a connecting spring 1 is provided between the supporting plate and the bottom surface of the accommodating groove, one end of the connecting spring 1 is fixedly connected to the bottom surface of the supporting plate, and the other end is fixedly connected to the bottom surface of the accommodating groove.

[0010] Furthermore, a fixing ring is fixedly provided in the piston block, and the fixing ring is provided with a through hole.

[0011] Furthermore, a second connecting spring is provided between the piston block and the fixing ring, one end of the second connecting spring is fixedly connected to the piston block, and the other end is fixedly connected to the fixing ring.

[0012] Furthermore, a pressure relief groove is provided on the outer wall of the mold body, and the pressure relief groove is communicated with the horizontal straight groove.

[0013] Furthermore, a fixing plate is fixedly provided on the top surface of the base, and a through hole is opened in the fixing plate. The horizontal straight rod passes through the through hole and is fixedly connected to the force-bearing plate. A plurality of evenly distributed telescopic rods are provided between the fixing plate and the force-bearing plate, and the two ends of the telescopic rods are fixedly connected to the fixing plate and the force-bearing plate respectively.

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

[0015] The utility model applies force toward the fixed plate to the force-bearing plate, and the force-bearing plate drives the horizontal straight rod and the piston to move downwardly in the straight groove, squeezing the air to increase the air pressure in the lower straight groove and eject the bearing plate carrying the battery cell pole in the mold groove, thereby facilitating demoulding;

[0016] The utility model prevents the supporting plate from separating from the membrane groove through a connecting spring 1 between the supporting plate and the accommodating groove, and the supporting plate will compress the spring 1 during the forming process of the battery cell pole. During demoulding, the spring 1 will also exert an upward force on the supporting plate during the upward movement of the supporting plate to assist the supporting plate in moving up.

[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 present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0020] Figure 2 for Figure 1 Schematic diagram of the mold main structure;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 This is a schematic diagram of the piston block structure of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] In the figure: 1. Base; 101. Fixed plate; 1011. Through hole; 2. Mold body; 201. Mold groove; 202. Lower straight groove; 203. Horizontal straight groove; 204. Pressure relief groove; 205. Accommodating groove; 3. Horizontal straight rod; 301. Piston block; 3011. Fixed ring; 4. Telescopic rod; 5. Connecting spring 1; 6. Force plate; 7. Connecting spring 2; 8. Load-bearing plate. DETAILED DESCRIPTION

[0025] 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.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "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.

[0027] See also Figure 1-4As shown, the utility model is a demoulding mechanism for cold heading of a battery cell pole, comprising a base 1, the base 1 being arranged parallel to a horizontal plane, a mold body 2 being fixedly arranged on the top surface of the base 1, a mold groove 201 being downwardly provided on the top surface of the mold body 2, a carrying plate 8 being arranged in the mold groove 201, the side wall of the carrying plate 8 being fitted with the side wall of the mold groove 201, a receiving groove 205 being downwardly provided on the bottom surface of the mold groove 201, the outer diameter of the receiving groove 205 being smaller than the outer diameter of the mold groove 201, a lower straight groove 202 being downwardly provided on the bottom surface of the receiving groove 205, a horizontal straight groove 203 being provided on the side wall of the mold body 2, The horizontal straight groove 203 is connected to the lower straight groove 202. A piston block 301 is provided in the horizontal straight groove 203. The outer wall of the piston block 301 is fitted with the side wall of the horizontal straight groove 203. In this embodiment, the battery pole is processed and formed in the mold groove 201 opened in the mold body 2. The formed battery pole is located above the supporting plate 8 and fits with the supporting plate 8. When the battery pole needs to be demolded, the piston block 301 is moved close to the lower straight groove 202, squeezing the air to increase the air pressure in the lower straight groove 202 and push out the supporting plate 8 supporting the battery pole in the mold groove 201. The supporting plate 8 is applied evenly to the battery pole, effectively preventing the bottom surface of the battery pole from being damaged.

[0028] The cam 302 is fixedly connected to the horizontal straight rod 3 on one side and the horizontal straight rod 3 is parallel to the horizontal straight groove 203 on the other side. The outer diameter of the horizontal straight rod 3 is smaller than the outer diameter of the horizontal straight groove 203 on the top surface of the base 1. The fixed plate 101 is provided with a through hole 1011. The horizontal straight rod 3 passes through the through hole 1011 and is fixedly connected to the force-bearing plate 6. A plurality of evenly distributed telescopic rods 4 are provided between the fixed plate 101 and the force-bearing plate 6. The two ends of the telescopic rods 4 are respectively fixedly connected to the fixed plate 101 and the force-bearing plate 6. In this embodiment, by applying a force toward the fixed plate 101 to the force-bearing plate 6, the force-bearing plate 6 drives the horizontal straight rod 3 and the piston to move toward the lower straight groove 202. The pushing plate can be pushed manually or with the help of other instruments that can generate horizontal thrust. The telescopic rod 4 arranged between the force-bearing plate 6 and the fixed plate 101 prevents the horizontal straight rod 3 from bending when the push plate is subjected to tilting and vertical forces.

[0029] Among them, a connecting spring 5 is provided between the supporting plate 8 and the bottom surface of the accommodating groove 205, one end of the connecting spring 5 is fixedly connected to the bottom surface of the supporting plate 8, and the other end is fixedly connected to the bottom surface of the accommodating groove 205. In this embodiment, the connecting spring 5 prevents the supporting plate 8 from separating from the membrane groove, and the supporting plate 8 will compress the spring 1 during the forming process of the battery cell pole. During demolding, when the supporting plate 8 moves upward, the spring 1 will also exert an upward force on the supporting plate 8 to assist the supporting plate 8 to move upward.

[0030] Among them, a fixing ring 3011 is fixedly set inside the piston block 301, and the fixing ring 3011 has a through hole 1011. In this embodiment, the through hole 1011 opened by the gas energy fixing ring 3011 limits the piston block 301 to prevent the piston block 301 from colliding with the lower straight groove 202.

[0031] Among them, a connecting spring 27 is provided between the piston block 301 and the fixing ring 3011. One end of the connecting spring 27 is fixedly connected to the piston block 301, and the other end is fixedly connected to the fixing ring 3011. In this embodiment, the spring 2 is used to connect the piston block 301 and the fixing ring 3011, which can prevent the piston block 301 from detaching from the horizontal straight groove 203.

[0032] Among them, the outer wall of the mold body 2 is also provided with a pressure relief groove 204, and the lower straight groove 202 is connected to the horizontal straight groove 203. In this embodiment, the pressure relief groove 204 assists in discharging the gas in the horizontal straight groove 203. During the cold forging process, the supporting plate 8 moves downward to push the gas under the supporting plate 8 into the lower straight groove 202 and the horizontal straight groove 203. If the air pressure in the horizontal straight groove 203 is too high, the piston block 301 will be pushed to the right of the connection between the pressure relief groove 204 and the horizontal straight groove 203, which can prevent the piston block 301 from detaching from the horizontal straight groove 203 while also protecting the spring to prevent the spring deformation from exceeding its own elastic range.

[0033] It can be understood that, first, the utility model pushes the push plate to drive the horizontal straight rod 3 and the piston block 301 to move toward the lower straight groove 202, squeezing the air to increase the air pressure in the lower straight groove 202 to move the supporting plate 8 in the mold groove 201 upward, facilitating demoulding, so that the bottom surface of the battery cell pole is subjected to uniform force during demoulding to prevent damage to the bottom surface of the battery cell pole; secondly, the spring will be compressed during the cold forging process, and when demoulding, the spring will recover and apply an upward force to the supporting plate 8 to help the supporting plate 8 move upward.

[0034] A specific application of this embodiment is: placing the material on the carrier plate 8 and then performing cold heading processing, the battery pole is processed and formed in the mold groove 201 opened in the mold body 2, and when demoulding is required, the push plate is pushed horizontally in the direction of the lower straight groove 202 manually or with the help of an instrument, and the push plate horizontal straight rod 3 and the piston block 301 move in the direction of the lower straight groove 202. During the movement of the piston block 301 in the direction of the lower straight groove 202, the pressure in the lower straight groove 202 will continue to increase, thereby lifting the carrier plate 8, and the carrier plate 8 moves upward to move the top of the battery pole to the top of the mold body 2, which is convenient for demoulding the battery pole. During the cold heading process of the battery pole, the spring is compressed, and when demoulding, the spring will recover and exert an upward force on the carrier plate 8 to help the carrier plate 8 move up, and the horizontal straight groove 203 A stopper is fixedly provided inside, which can effectively prevent the piston block 301 from colliding with the lower straight groove 202 when the piston block 301 moves toward the lower straight groove 202. The horizontal straight groove 203 is connected to the pressure relief groove 204. During the cold heading process, the supporting plate 8 moves downward to increase the pressure in the horizontal straight groove 203, thereby pushing the piston block 301 to move to the right. When the piston block 301 moves to the right side of the pressure relief groove 204, the gas is discharged through the pressure relief groove 204, which can effectively prevent the piston block 301 from disengaging from the horizontal straight groove 203 and limiting the direction. After the demolding is completed, the reset spring drives the moving plate and the piston block 301 to reset so that the next demolding is completed. A stopper is fixedly provided in the horizontal straight groove 203, which can effectively prevent the piston block 301 from colliding with the lower straight groove 202.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A demoulding mechanism for cold heading of a battery cell pole, comprising a base (1), wherein the base (1) is arranged parallel to a horizontal plane, and is characterized in that: A mold body (2) is fixedly provided on the top surface of the base (1), a mold groove (201) is provided downward on the top surface of the mold body (2), a bearing plate (8) is provided in the mold groove (201), the side wall of the bearing plate (8) is in contact with the side wall of the mold groove (201), a receiving groove (205) is provided downward on the bottom surface of the mold groove (201), the outer diameter of the receiving groove (205) is smaller than the outer diameter of the mold groove (201), a lower straight groove (202) is provided downward on the bottom surface of the receiving groove (205), a horizontal straight groove (203) is provided on the side wall of the mold body (2), the horizontal straight groove (203) is communicated with the lower straight groove (202), a piston block (301) is provided in the horizontal straight groove (203), and the outer wall of the piston block (301) is in contact with the side wall of the horizontal straight groove (203).

2. The demoulding mechanism for cold heading of a battery cell pole according to claim 1, characterized in that: One side of the piston block (301) is fixedly connected to the horizontal straight rod (3), the horizontal straight rod (3) is parallel to the horizontal straight groove (203), and the outer diameter of the horizontal straight rod (3) is smaller than the outer diameter of the horizontal straight groove (203).

3. The demoulding mechanism for cold heading of a battery cell pole according to claim 1, characterized in that: A connecting spring (5) is provided between the supporting plate (8) and the bottom surface of the receiving groove (205), one end of the connecting spring (5) is fixedly connected to the bottom surface of the supporting plate (8), and the other end is fixedly connected to the bottom surface of the receiving groove (205).

4. The demoulding mechanism for cold heading of a battery cell pole according to claim 1, characterized in that: A fixing ring (3011) is fixedly arranged inside the piston block (301), and the fixing ring (3011) is provided with a through hole.

5. The demoulding mechanism for cold heading of a battery cell pole according to claim 4, characterized in that: A second connecting spring (7) is provided between the piston block (301) and the fixing ring (3011), one end of the second connecting spring (7) is fixedly connected to the piston block (301), and the other end is fixedly connected to the fixing ring (3011).

6. The demoulding mechanism for cold heading of a battery cell pole according to claim 1, characterized in that: The outer wall of the mold body (2) is also provided with a pressure relief groove (204), and the pressure relief groove (204) is communicated with the horizontal straight groove (203).

7. The demoulding mechanism for cold heading of a battery cell pole according to claim 2, characterized in that: A fixing plate (101) is fixedly provided on the top surface of the base (1), the fixing plate (101) is provided with a through hole (1011), the horizontal straight rod (3) passes through the through hole (1011) and is fixedly connected to the force-bearing plate (6), a plurality of evenly distributed telescopic rods (4) are provided between the fixing plate (101) and the force-bearing plate (6), and the two ends of the telescopic rods (4) are fixedly connected to the fixing plate (101) and the force-bearing plate (6), respectively.

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