A punching die for new energy battery box

Abstract

The present invention relates to the field of mold technology, and in particular to a punching mold for a new energy battery box, comprising a lower mold base; a fixing component is arranged on one side of the top surface of the lower mold base, the fixing component fixes the upper cover of the battery box in an upright and inclined state, one side of the upper mold base is adapted to be mounted in the cavity of the upper cover of the battery box, a punching component is arranged on the bottom surface of the upper mold base, a punch is arranged on the bottom surface of the punching component, and positioning blocks are arranged on both sides of the punch, the punch is used to vertically punch the upper cover of the battery box, and the positioning blocks are used to fix the upper cover of the battery box during punching; the punching mold fixes the upper cover of the battery box in an upright and inclined state, and the punching component vertically punches out wire holes on the lower side plate in the upper cover of the battery box, thereby reducing burrs on the wire outlet holes, elastic recovery deformation and deformation of the side plate, and aperture or shape not meeting requirements, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of mold technology, and in particular to a punching mold for a new energy battery box. Background Art

[0002] The battery box of new energy vehicles is an important component of new energy vehicles. Its design and manufacturing directly affect the safety, performance and range of electric vehicles. The outlet holes on the upper cover of the battery box of new energy vehicles are important channels for the electrical connection between the battery system and other parts of the vehicle. They allow current and signal lines to pass through to ensure that the battery can safely and efficiently transmit electricity to the vehicle's power system or other electrical equipment.

[0003] At present, stamping process is a commonly used technology for manufacturing the wire outlet holes of battery boxes; in order to provide better structural stability and anti-twisting ability, the side plate and the bottom plate of the battery box cover adopt an outward expansion design slightly greater than 90 degrees. Therefore, in the process of stamping the battery box, in order to maintain the stability of the battery box cover, the battery box cover is usually fixed horizontally on the mold, but the wire outlet hole of the battery box is located on the side plate of the battery box cover. The horizontally fixed battery box cover is punched by horizontal stamping. The punching force of horizontal punching in the horizontal direction will cause more pulling of the material during punching, thereby generating burrs and deformation of the wire outlet hole; the punching pressure of horizontal punching is unevenly distributed, causing material deformation; in horizontal punching, the side wall is slightly tilted, the wire outlet hole and the punch are not vertical, and the side plate of the battery box cover changes in size due to elastic recovery after punching, resulting in the hole diameter or shape not meeting the requirements, and reducing production efficiency.

[0004] Therefore, the present invention provides a punching die for a new energy battery case to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a punching die for a new energy battery box to solve the problems in the prior art of horizontal punching resulting in burrs and deformation, hole diameter or shape not meeting the requirements, easy deformation of the material, and low production efficiency.

[0006] In order to solve the above technical problems, the present invention provides a punching die for a new energy battery box, including a lower die base; a fixing component is arranged on one side of the top surface of the lower die base, and the fixing component fixes the upper cover of the battery box in an upright and inclined state; one side of the upper die base is adapted to be mounted in the cavity of the upper cover of the battery box, a punching component is arranged on the bottom surface of the upper die base, a punch is arranged on the bottom surface of the punching component, and positioning blocks are arranged on both sides of the punch, the punch is used to vertically punch the upper cover of the battery box, and the positioning blocks are used to fix the upper cover of the battery box during punching.

[0007] A further improvement of the technical solution of the present invention is that the battery box cover includes a bottom plate, a side plate arranged on the periphery of the bottom plate, and the angle between the side plate and the bottom plate is 95 to 105 degrees; a vertical outer flange is arranged on the periphery of the side plate, and a lower side plate is arranged at the lower end of the bottom plate in the side plate, and the lower side plate is connected to the lower flange in the outer flange.

[0008] A further improvement of the technical solution of the present invention is that: positioning holes are arranged in the middle of the lower side plate, two groups of positioning holes are arranged, four in a group, the four positioning holes are arranged in a square, and a wire outlet hole is arranged in the area enclosed by the four positioning holes.

[0009] A further improvement of the technical solution of the present invention is that the fixing assembly includes a lower fixing plate fixed to the top surface of the lower mold base, two support columns are arranged at a middle interval on the top surface of the lower fixing plate, a support plate is fixed on the top of the support column, and the upper surface of the support plate is horizontally abutted against the lower side plate; it is used to support the bottom of the battery box cover when it is in a vertical state.

[0010] A further improvement of the technical solution of the present invention is that: a positioning column is arranged on the lower fixed plate between the two support columns, the positioning column passes through the support plate and the positioning hole in sequence upward, a punch hole is arranged on the support plate in the enclosed area inside the positioning column, the punch hole corresponds to the wire outlet hole up and down; inner guide columns are respectively arranged on the lower fixed plate near the two edges, and the inner guide columns are located on the front side of the battery box cover.

[0011] A further improvement of the technical solution of the present invention is that a square column is arranged on the lower fixed plate at the rear side of the battery box upper cover, a U-shaped frame is arranged on the top of the square column, and the inner side surface of the U-shaped frame abuts against 2 / 3 of the height of the side plate and the bottom plate respectively.

[0012] A further improvement of the technical solution of the present invention is that one side of the punching assembly is adapted to be mounted in the cavity of the upper cover of the battery box; the punching assembly includes an upper fixed plate fixed to the bottom surface of the upper die seat, a pressing plate is arranged on the bottom surface of the upper fixed plate, an insert is nested in the middle of the bottom surface of the pressing plate, a vertically downward punch is arranged on the insert, and the punch is used to punch out the wire hole.

[0013] A further improvement of the technical solution of the present invention is that: two positioning blocks are set at intervals on both sides of the punch on the bottom surface of the pressing plate, and the side surfaces of the positioning blocks are against the lower flanges to fix the upper cover of the battery box when punching; a guide hole is set on the outside of the positioning block on the bottom surface of the pressing plate, and a guide sleeve is set in the guide hole, and the guide sleeve is used to adapt to the inner guide column of the assembly when punching.

[0014] A further improvement of the technical solution of the present invention is that two limit columns are set at the middle distance between the lower mold base and the upper mold base, the two limit columns are close to the lower fixed plate, guide columns are respectively set on the outside of the two limit columns away from the lower fixed plate, and balance columns are set away from the guide columns. The balance columns are made of polyurethane and three are evenly arranged.

[0015] A further improvement of the technical solution of the present invention is that: a protrusion is arranged at one end of the upper die seat, the protrusion is adapted to be mounted in the cavity of the upper cover of the battery box, a punching assembly is arranged on the bottom surface of one side of the upper die seat, one end of the punching assembly is adapted to be mounted in the cavity of the upper cover of the battery box, and when punching, the upper die seat drives the punching assembly to move up and down in the cavity of the upper cover of the battery box.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a punching die for a new energy battery box. The punching die is provided with a fixing component on one side of the top surface of the upper die seat to fix the upper cover of the battery box in an upright inclined state. The upper die seat is adapted to be mounted in the cavity of the upper cover of the battery box, and a punching component is provided on the bottom surface of the upper module. The punching component punches out wire holes vertically downward on the lower side plate in the upper cover of the battery box. Since the direction of the punching force is consistent with the direction of gravity, the pulling of the upper cover of the battery box is reduced during punching, thereby reducing the generation of burrs. The vertical punching punching pressure acts directly downward, which helps to be more evenly distributed on the material and reduce material deformation caused by uneven pressure distribution; the side plate of the upper cover of the battery box after punching is reduced due to elastic recovery, resulting in the hole diameter or shape not meeting the requirements, thereby improving production efficiency.

[0018] 2. The present invention provides a punching die for a new energy battery box. The punching die is provided with a square column on the rear side of the battery box cover on the lower fixed plate in the fixing assembly. A U-shaped frame is provided on the top of the square column. The inner sides of the U-shaped frame respectively abut against 2 / 3 of the height of the side plate and the bottom plate, so as to support and fix the rear part of the vertically inclined battery box cover. The lower side plate in the battery box cover is supported and placed horizontally on a support plate, so that the punching assembly can punch out wire holes vertically on the lower side plate, reduce the pulling of the battery box cover during punching, and thus reduce the generation of burrs. The vertical punching pressure acts directly downward, which helps to distribute the pressure more evenly on the material and reduce the material deformation caused by uneven pressure distribution, thereby improving production efficiency.

[0019] 3. The present invention provides a punching die for a new energy battery box. The punching die sets a positioning hole in the middle of the lower side plate. The four positioning holes are arranged in a square shape. A wire outlet hole is set in the area enclosed by the four positioning holes. The positioning column on the lower fixed plate passes through the support plate and the positioning hole in sequence upward. The positioning holes penetrated by the positioning column are used to accurately position the wire outlet hole around the wire outlet hole to prevent displacement or misalignment of the upper cover of the battery box, thereby improving the accuracy of punching and the efficiency of punching.

[0020] 4. The present invention provides a punching die for a new energy battery case. The punching die is fixed to the bottom surface of the upper die seat through an upper fixed plate in the punching assembly. A pressing plate is arranged on the bottom surface of the upper fixed plate. An insert is nested in the middle of the bottom surface of the pressing plate. A vertically downward punch is arranged on the insert. The punch punches out a wire hole vertically downward. The upper die seat drives the punching assembly to move vertically downward. The direction of the punching force of the punch on the lower side plate is consistent with the direction of gravity, which reduces the pulling on the lower side plate when punching, thereby reducing the generation of burrs. The vertical punching pressure acts directly downward, which helps to be more evenly distributed on the material, reducing material deformation caused by uneven pressure distribution, and improving production efficiency.

[0021] 5. The present invention provides a punching die for a new energy battery box. In the punching die, the bottom surface of the pressing plate in the punching assembly is located on both sides of the punch and two positioning blocks are arranged at intervals. The side surfaces of the positioning blocks abut against the lower flange. When punching, the upper die seat drives the punching assembly to move downward until the two positioning blocks abut against the lower flange. The setting of the positioning blocks realizes repeated positioning of the battery box cover, preventing the lower side plate of the battery box cover from being deformed and moved due to the strong impact force when the punching assembly punches out the wire holes, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of a punching die for a new energy battery box;

[0024] Figure 2 A side view of a punching die for a new energy battery box;

[0025] Figure 3 This is a schematic diagram of the structure of the battery box cover before punching;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0027] Figure 5 This is a schematic diagram of the structure after the wire outlet hole is punched out of the upper cover of the battery box;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of part B;

[0029] Figure 7 It is a schematic diagram of the structure of the punching component;

[0030] Figure 8 It is a side view structural schematic diagram of the punching component;

[0031] Fig. 9 It is a schematic diagram of the structure of the fixed component;

[0032] Fig.10 for Fig. 9 Schematic diagram of the structure of the middle support plate, positioning holes and positioning columns;

[0033] Fig.11 It is a structural schematic diagram of the battery box cover, support plate and positioning block.

[0034] 1. The lower die base; 2. The upper cover of the battery box; 3. The upper die base; 4. The punching assembly; 5. The fixing assembly; 6. The outlet hole; 7. The limit column; 8. The guide column; 9. The balance column; 11. The lower fixed plate; 12. The square column; 13. The U-shaped frame; 14. The positioning column; 15. The support plate; 16. The support column; 17. The inner guide column; 18. The punch hole; 21. The bottom plate; 22. The side plate; 23. The outer flange; 24. The lower side plate; 25. The lower flange; 26. The positioning hole; 31. The protrusion; 41. The punch; 42. The positioning block; 43. The upper fixed plate; 44. The pressing plate; 45. The insert; 46. The guide hole; 47. The guide sleeve. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention is further explained below in conjunction with specific implementation modes.

[0039] like Figure 1 to Figure 11 As shown, the present embodiment provides a punching die for a new energy battery case, comprising a lower die seat 1; a fixing assembly 5 is arranged on one side of the top surface of the lower die seat 1, the fixing assembly 5 fixes the battery case upper cover 2 in an upright tilted state, one side of the upper die seat 3 is adapted to be fitted in the cavity of the battery case upper cover 2, a punching assembly 4 is arranged on the bottom surface of the upper die seat 3, a convex block 31 is arranged at one end of the upper die seat 3, the convex block 31 is adapted to be fitted in the cavity of the battery case upper cover 2, so as to facilitate the upper die seat 3 to move the battery case upper cover 2 up and down; a punching assembly 4 is arranged on the bottom surface of one side of the upper die seat 3, one end of the punching assembly 4 is adapted to be fitted in the cavity of the battery case upper cover 2, when punching, the upper die seat 3 drives the punching assembly 4 to move up and down in the cavity of the battery case upper cover 2; a punch 41 is arranged on the bottom surface of the punching assembly 4, and positioning blocks 42 are arranged on both sides of the punch 41, the punch 41 is used to vertically punch the battery case upper cover 2, and the positioning blocks 42 are used to fix the battery case upper cover 2 when punching. The fixing component 5 fixes the upper cover of the battery box in an upright tilted state, and the punching component 4 punches the wire hole vertically downward on the lower side plate in the upper cover of the battery box. Since the direction of the punching force is consistent with the direction of gravity, the pulling of the upper cover of the battery box during punching is reduced, thereby reducing the generation of burrs. The vertical punching pressure acts directly downward, which helps to be more evenly distributed on the material and reduce material deformation caused by uneven pressure distribution; it reduces the dimensional change of the lower side plate of the upper cover of the battery box due to elastic recovery after punching, resulting in the hole diameter or shape not meeting the requirements, thereby improving production efficiency.

[0040] Two limit columns 7 are arranged at the middle interval between the lower die base 1 and the upper die base 3. The two limit columns 7 are close to the lower fixed plate 11. Guide columns 8 are arranged on the outer sides of the two limit columns 7 away from the lower fixed plate 11. Balance columns 9 are arranged away from the guide columns 8. The balance columns 9 are made of polyurethane and three are evenly arranged. Specifically, the two limit columns 7 are located between the lower die base 1 and the upper die base 3. The upper end faces of the limit columns 7 are fixed on the upper die base 3, and the lower end faces of the limit columns 7 are fixed on the lower die base 1. The gap between the two limit columns 7 is close to the lower fixed plate 11 on the left side. The guide columns 8 and balance columns 9 are arranged in sequence on the right side of the two limit column 7 bodies. The bottom end faces of the guide columns 8 and balance columns 9 are respectively fixed on the lower die base 1, and the top ends of the guide columns 8 and balance columns 9 are respectively fixed on the bottom surface of the upper die base 3. The limit columns, guide columns and balance columns are all existing products, and the specific structures are not described here. The limit column 7 limits the range of up and down movement of the mold during the processing. The range of up and down movement of the mold is within a reasonable range, that is, the punch 41 enters the punch hole 18 and extends out of the punch hole 18 without contacting the lower fixed plate 11, and the waste material after punching is smoothly pushed out of the punch hole 18. The guide column 8 ensures that the positioning of the mold during the processing is accurate, stable and reliable. It can ensure the accurate positioning of the upper die base 3 and the lower die base 1, prevent the displacement and rotation of the mold, thereby ensuring the accuracy and stability of the processing process. Improve work efficiency. The mold will vibrate during the punching process; polyurethane has high density, high strength, impact resistance and shock absorption, so the balance column 9 can effectively reduce vibration and maintain the stable operation of the mold, thereby improving processing quality and efficiency.

[0041] like Figure 3~Figure 6 As shown, in this embodiment, the battery box cover 2 includes a bottom plate 21, a side plate 22 arranged on the periphery of the bottom plate 21, and the angle between the side plate 22 and the bottom plate 21 is 95-105 degrees; the setting of this angle can increase the rigidity of the battery box cover, so that the battery box cover is not easy to deform when subjected to external force, which helps to disperse the force and increase the firmness of the box. When subjected to torque or twisting force, it can better disperse the force and reduce the deformation of the box, thereby improving the durability and reliability of the box. A vertical outer flange 23 is arranged on the periphery of the side plate 22, and a lower side plate 24 is arranged at the lower end of the bottom plate 21 in the side plate 22, and the lower side plate 24 is connected to the lower flange 25 in the outer flange 23; a positioning hole 26 is arranged in the middle of the lower side plate 24, and the positioning holes 26 are arranged in two groups, four in a group, and the four positioning holes 26 are arranged in a square shape, and the outlet hole 6 is arranged in the area surrounded by the four positioning holes 26. The outlet holes 6 are important channels for electrically connecting the battery system in the battery box with other parts of the vehicle. They allow current and signal lines to pass through to ensure that the battery can safely and efficiently transmit electricity to the vehicle's power system or other electrical equipment.

[0042] like Figure 9~Figure 11As shown, in this embodiment, the fixing assembly 5 includes a lower fixing plate 11 fixed to the top surface of the lower die base 1, and two support columns 16 are arranged at a middle interval on the top surface of the lower fixing plate 11. The top of the support column 16 fixes the support plate 15, and the support column 16 supports the support plate 15 at a certain height. When the punch 41 punches the wire hole 6 vertically downward on the lower side plate 24, the punch 41 enters the punch hole 18, extends out of the punch hole 18 without contacting the lower fixing plate 11, and smoothly pushes the punched waste out of the punch hole 18. The upper surface of the support plate 15 is horizontally pressed against the lower side plate 24; it is used to support the bottom of the battery box upper cover 2, and the support plate 15 supports the lower side plate 24 in a horizontal state, so that the punching assembly 4 can punch the wire hole 6 vertically on the lower side plate 24, reduce the pulling of the battery box upper cover during punching, thereby reducing the generation of burrs, and the vertical punching pressure acts directly downward, which helps to distribute the punching pressure more evenly on the material, and reduce the material deformation caused by uneven pressure distribution; improve production efficiency. A positioning column 14 is arranged between the two supporting columns 16 on the lower fixed plate 11. The positioning column 14 passes through the support plate 15 and the positioning hole 26 in sequence upward. The positioning column 14 and the positioning holes 26 are arranged in a square. The positioning column 14 passes through the support plate 15 and the positioning hole 26 in sequence upward to position the lower side plate 24 in the battery box upper cover 2. The positioning holes 26 passed by the positioning column 14 are around the outlet hole 6 to accurately position the outlet hole 6 to prevent the battery box upper cover from displacement or misalignment, thereby improving the punching accuracy and punching efficiency; a punch hole 18 is arranged in the enclosed area inside the positioning column 14 on the support plate 15, and the punch hole 18 corresponds to the outlet hole 6 up and down; when the punch 41 punches the outlet hole 6 vertically downward on the lower side plate 24, the punch 41 enters the punch hole 18, and the waste material after punching is pushed out of the punch hole 18.

[0043] The lower fixing plate 11 is provided with inner guide posts 17 near the two edges, and the inner guide posts 17 are located at the front side of the battery box upper cover 2. The provision of the inner guide posts 17 ensures that the lower fixing plate 11 and the pressing plate 44 can be accurately aligned during the movement.

[0044] Furthermore, the fixing assembly 5 also includes a lower fixing plate 11 fixed to the top surface of the lower mold base 1, and a square column 12 is arranged on the lower fixing plate 11 at the rear side of the battery box upper cover 2, and a U-shaped frame 13 is arranged at the top of the square column 12, and the inner side surfaces of the U-shaped frame 13 are respectively against the side plate 22 and the bottom plate 21 at 2 / 3 of the height. The U-shaped frame 13 is located at 2 / 3 of the battery box upper cover 2; since the angle between the side plate 22 and the bottom plate 21 in the battery box upper cover 2 is 95~105 degrees, in order to horizontally fix the side plate 22 on the upper surface of the support plate 15 so as to vertically punch out the wire hole 6 on the side plate 22, the battery box upper cover 2 is tilted toward the square column 12 on the rear side, and the U-shaped frame 13 is located at 2 / 3 of the battery box upper cover 2. The center of gravity of the battery box upper cover 2 is located within the coverage range of the U-shaped frame 13, so that the square column 12 and the U-shaped frame 13 provide stable support for the battery box upper cover 2, and support the lower side plate 24 to be placed horizontally on the support plate 15, so as to facilitate the punching assembly 4 to vertically punch holes in the lower side plate 24.

[0045] like Figure 7~Figure 8 As shown, in this embodiment, one side of the punching assembly 4 is adapted to be mounted in the cavity of the upper cover 2 of the battery box; the punching assembly 4 includes an upper fixed plate 43 fixed to the bottom surface of the upper die seat 3, a press plate 44 is arranged on the bottom surface of the upper fixed plate 43, and the upper fixed plate 43 and the press plate 44 are adapted to be mounted in the cavity of the upper cover 2 of the battery box on one side facing the upper cover 2 of the battery box; it is convenient for the punching assembly 4 to move up and down in the upper cover 2 of the battery box when punching; an insert 45 is nested in the middle of the bottom surface of the press plate 44, and a punch 41 is arranged vertically downward on the insert 45, and the punch 41 is used to punch out the outlet hole 6. The upper die seat 3 drives the punching assembly 4 to move vertically downward, and the direction of the punching force of the punch 41 on the lower side plate 24 is consistent with the direction of gravity, which reduces the pulling of the lower side plate when punching, thereby reducing the generation of burrs, and the vertical punching pressure acts directly downward, which helps to be more evenly distributed on the material, reducing the material deformation caused by uneven pressure distribution, and improving production efficiency. The bottom surface of the pressing plate 44 is located on both sides of the punch 41 and two positioning blocks 42 are set at intervals. The positioning blocks 42 are inclined downwardly with the sides close to the lower flange 25, so that the sides of the positioning blocks 42 are completely against the lower flange 25, which is used to fix the battery box cover 2 when punching; when punching, the upper die seat 3 drives the punching assembly 4 to move downward until the two positioning blocks 42 are against the lower flange 25 to prevent the lower side plate 24 of the battery box cover 2 from being deformed and moved due to the strong impact force when the punching assembly 4 punches out the wire hole 6, resulting in the hole diameter or shape not meeting the requirements, thereby affecting the punching accuracy. The setting of the positioning blocks 42 realizes repeated fixed positioning of the battery box cover 2, thereby improving production efficiency.

[0046] The bottom surface of the press plate 44 is located outside the positioning block 42 and is provided with a guide hole 46. A guide sleeve 47 is provided in the guide hole 46. The guide sleeve 47 is used to fit the inner guide post 17 when punching. The inner guide post 17 moves up and down in the guide sleeve 47 to ensure that the lower fixing plate 11 and the press plate 44 can be accurately aligned during the up and down movement of punching.

[0047] The working principle of a punching die for a new energy battery box is as follows: the user checks that the upper die seat 3 is in the initial state; the lower side plate 24 of the battery box cover 2 is placed horizontally on the support plate 15, and the positioning holes 26 on the lower side plate 24 are all mounted on the positioning columns 14, and the inner sides of the U-shaped frame 13 are respectively pressed against the side plates 22 and the bottom plate 21 to complete the fixation of the battery box cover 2 on the fixing assembly 5; the upper die seat 3 drives the punching assembly 4 to move downward in the cavity of the battery box cover 2; the punch 41 moves vertically downward to punch out the wire hole 6 on the lower side plate 24. When punching, the two positioning blocks 42 are pressed against the lower flange 25, and the punch 41 moves into the punch hole 18 to push the waste material after the wire hole 6 is punched out from the punch hole 18; the upper die seat 3 drives the punching assembly 4 to move upward to complete the punching operation of the battery box cover 2, and the battery box cover 2 is taken out for the next process.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A punching die for a new energy battery box, characterized in that: The invention comprises a lower die base (1); a fixing component (5) is arranged on one side of the top surface of the lower die base (1); the fixing component (5) fixes the upper cover (2) of the battery box in an upright tilted state; a side of the upper die base (3) is adapted to be mounted in the cavity of the upper cover (2) of the battery box; a punching component (4) is arranged on the bottom surface of the upper die base (3); a punch (41) is arranged on the bottom surface of the punching component (4); positioning blocks (42) are arranged on both sides of the punch (41); the punch (41) is used to vertically punch the upper cover (2) of the battery box; and the positioning blocks (42) are used to fix the upper cover (2) of the battery box during punching; The battery box upper cover (2) comprises a bottom plate (21), a side plate (22) arranged on the periphery of the bottom plate (21), and the angle between the side plate (22) and the bottom plate (21) is 95-105 degrees; a vertical outer flange (23) is arranged on the periphery of the side plate (22), a lower side plate (24) is arranged at the lower end of the bottom plate (21) in the side plate (22), and the lower side plate (24) is connected to the lower flange (25) in the outer flange (23); A positioning hole (26) is provided in the middle of the lower side plate (24), the positioning holes (26) are provided in two groups, four in a group, the four positioning holes (26) are arranged in a square shape, and a wire outlet hole (6) is provided in an area enclosed by the four positioning holes (26); The fixing assembly (5) comprises a lower fixing plate (11) fixed to the top surface of the lower mold base (1), two support columns (16) are arranged at a distance in the middle of the top surface of the lower fixing plate (11), the top of the support column (16) fixes the support plate (15), and the upper surface of the support plate (15) is horizontally abutted against the lower side plate (24); it is used to support the bottom of the battery box upper cover (2) when it is in a vertical state; A positioning column (14) is arranged between the two support columns (16) on the lower fixing plate (11), the positioning column (14) passes through the support plate (15) and the positioning hole (26) in sequence upwards, a punch hole (18) is arranged on the support plate (15) in the inner enclosed area of ​​the positioning column (14), and the punch hole (18) corresponds to the outlet hole (6) in the upper and lower parts; inner guide columns (17) are arranged near the two edges of the lower fixing plate (11), and the inner guide columns (17) are located on the front side of the battery box upper cover (2); The bottom surface of the pressing plate (44) is located on both sides of the punch (41) and is provided with two positioning blocks (42) at intervals. The sides of the positioning blocks (42) abut against the lower flange (25) and are used to fix the battery box upper cover (2) when punching holes. The bottom surface of the pressing plate (44) is located on the outside of the positioning blocks (42) and is provided with a guide hole (46). A guide sleeve (47) is provided in the guide hole (46). The guide sleeve (47) is used to fit the inner guide column (17) when punching holes.

2. A punching die for a new energy battery box according to claim 1, characterized in that: A square column (12) is arranged on the lower fixing plate (11) at the rear side of the battery box upper cover (2), a U-shaped frame (13) is arranged at the top end of the square column (12), and the inner side surface of the U-shaped frame (13) abuts against the side plate (22) and the bottom plate (21) at 2 / 3 of the height respectively.

3. A punching die for a new energy battery box according to claim 1, characterized in that: One side of the punching assembly (4) is adapted to fit within the cavity of the upper cover (2) of the battery box; the punching assembly (4) comprises an upper fixing plate (43) fixed to the bottom surface of the upper die seat (3); a pressing plate (44) is arranged on the bottom surface of the upper fixing plate (43); an insert (45) is nested in the middle of the bottom surface of the pressing plate (44); a punch (41) is arranged on the insert (45) pointing vertically downward, and the punch (41) is used to punch out a wire outlet hole (6).

4. A punching die for a new energy battery box according to claim 1, characterized in that: Two limit columns (7) are arranged at a central distance between the lower die seat (1) and the upper die seat (3), the two limit columns (7) being close to the lower fixed plate (11), guide columns (8) being arranged on the outer sides of the two limit columns (7) away from the lower fixed plate (11), and balance columns (9) being arranged away from the guide columns (8), the balance columns (9) being made of polyurethane and three of them being evenly arranged.

5. A punching die for a new energy battery box according to claim 1, characterized in that: A convex block (31) is provided at one end of the upper die seat (3), and the convex block (31) is adapted to be mounted in the cavity of the battery box upper cover (2). A punching assembly (4) is provided on the bottom surface of one side of the upper die seat (3), and one end of the punching assembly (4) is adapted to be mounted in the cavity of the battery box upper cover (2). When punching, the upper die seat (3) drives the punching assembly (4) to move up and down in the cavity of the battery box upper cover (2).

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