Punch forming die for metal battery box cover of electric vehicle

Abstract

The utility model discloses an electric automobile metal battery box cover punch forming die which comprises a base, a limiting seat and a guide rail, a lower die is installed on the base, an upper die is arranged above the lower die, an electromagnetic valve and an air inlet pipe are installed on the left face and the right face of the lower die respectively, a guide plate is arranged in the lower die, and a plurality of air holes are formed in the surface of the lower die. The guide rail is installed on the edge of the surface of the base, the guide rail is in sliding connection with an electric sliding seat, the electric sliding seat is provided with a second air cylinder, a support is installed at the lower end of the second air cylinder, a suction cup is installed on the surface of the support, and the suction cup is located above the containing plate. Air abuts against the battery box cover on the surface of the lower mold through the air holes, automatic demolding of the battery box cover is achieved through air pressure, the battery box cover cannot be damaged, demolding is safer, metal plates can be automatically fed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery box cover production, in particular to a stamping forming die for a metal battery box cover of an electric vehicle. Background Art

[0002] During the production of the battery box cover, a stamping die is generally used to stamp the plate to form the battery box cover, and then the battery box cover is sheared and corrected to finally complete the production of the battery box cover.

[0003] In the related technology, after searching, it was found that there is a scheme of a stamping forming die for a metal battery box cover of an electric vehicle (Announcement No. CN217595655U), in which a material guide plate can guide the metal, thereby preventing the metal from sticking to the punch and requiring the user to manually separate the metal, thereby further improving the working efficiency of the equipment.

[0004] The above technical solution uses four guide plates to assist in demolding. However, the size of the guide plates is limited by the spatial layout inside the stamping die. When the metal sheet used to manufacture the battery box cover is thin, the battery box cover will be partially deformed during demolding and requires subsequent correction. The above technical solution uses manual labor to take the metal sheet and put it into the stamping die. The manual positioning and placement of the metal sheet are limited by proficiency and operating accuracy, and it is difficult to maintain an efficient processing state. Utility Model Content

[0005] The utility model aims to provide a stamping die for a metal battery box cover of an electric vehicle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a stamping die for a metal battery box cover of an electric vehicle, comprising a base, a lower die is mounted on the base, and an upper die is arranged above the lower die, the upper die and the lower die are designed according to the shape of the battery box cover, the stamping accuracy is high, and the battery box cover produced has higher accuracy;

[0007] The lower mold is hollow inside, and a solenoid valve and an air inlet pipe are installed on the left and right sides of the lower mold respectively. A guide plate is provided inside the lower mold, and a plurality of air holes are provided on the surface of the lower mold. High-pressure air is passed into the lower mold to dissipate heat for the lower mold, thereby preventing the lower mold from becoming unwearable due to high temperature and prolonging its service life.

[0008] A limit seat, the limit seat is installed on the right side of the base surface, a placement plate is provided inside the limit seat, a first cylinder is installed between the placement plate and the base, the first cylinder is used to control the placement plate to move up, a metal sheet is placed on the placement plate, and the first cylinder controls the metal sheet to move up, so that the stamping die can be automatically fed;

[0009] A guide rail is installed to the edge of the base surface, the guide rail is slidably connected with an electric slide, the electric slide is installed with a second cylinder, a bracket is installed at the lower end of the second cylinder, a suction cup is installed on the surface of the bracket, and the suction cup is located above the placement plate, the electric slide controls the movement of the suction cup, when the suction cup sucks the metal sheet, the metal sheet can be sent to the lower mold to realize automatic loading.

[0010] Furthermore, a third cylinder is provided on the upper surface of the base, and a top frame is installed on the upper end of the third cylinder. The top frame is inserted into the lower mold and is slidably connected to the lower mold. The third cylinder is used to control the top frame to move upward. When the battery box cover needs to be demolded, automatic demolding can be achieved through the third cylinder.

[0011] Furthermore, a plurality of flow grooves are provided on the upper surface of the guide plate. The flow grooves are arranged in a semicircular shape and are connected with the air holes. When the gas flows through the flow grooves, it can take away the heat of the lower mold and cool the lower mold. When the solenoid valve is closed, the gas passes through the air holes to push up the battery box cover to achieve automatic demoulding.

[0012] Furthermore, the surface of the lower mold is provided with a plurality of sliding holes, and the top frame is inserted into the sliding holes. The sliding holes accommodate the top frame to prevent the top frame from protruding on the surface of the lower mold, thereby ensuring accurate mold closing of the upper mold and the lower mold.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) Air can be introduced into the lower mold through the air inlet pipe. When the solenoid valve is opened, the air is discharged through the solenoid valve. The air continuously flows in the lower mold to cool the lower mold. When the solenoid valve is closed, the air passes through the air holes to support the battery box cover on the surface of the lower mold. The battery box cover is automatically demoulded by air pressure without damaging the battery box cover. The demoulding is safer. The battery box cover can be pushed up by the third cylinder and the top frame to achieve automatic and lossless demoulding of the battery box cover.

[0015] (2) The metal sheets are placed on a plate, and the limit seat ensures that the metal sheets are stacked neatly. The first cylinder controls the metal sheets to move upward so that the metal sheets move to the suction range of the suction cup. After the suction cup sucks the metal sheets, the electric slide seat can control the movement of the suction cup, and then move the metal sheets to the top of the lower die. The second cylinder moves downward to control the metal sheets to fall onto the surface of the lower die, thereby realizing automatic loading of metal sheets and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3This is a schematic diagram of the structure of the connection between the lower mold and the top frame of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure inside the lower mold of the utility model.

[0020] In the figure: 1. base; 2. third cylinder; 3. lower die; 4. upper die; 5. positioning sleeve; 6. positioning column; 7. solenoid valve; 8. air inlet pipe; 9. top frame; 10. air hole; 11. support rod; 12. first cylinder; 13. placement plate; 14. limit seat; 15. guide rail; 16. electric slide seat; 17. second cylinder; 18. bracket; 19. suction cup; 20. guide plate; 21. circulation slot; 22. suspension bracket; 23. slide hole; 24. extension arm. DETAILED DESCRIPTION

[0021] 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.

[0022] Example:

[0023] See also Figure 1-4 The utility model provides a technical solution: a stamping die for a metal battery box cover of an electric vehicle, comprising a base 1, a lower die 3 is installed on the base 1, and an upper die 4 is arranged above the lower die 3, and a spacing is reserved between the lower die 3 and the base 1, so as to reserve space for installing a third cylinder 2 and a top frame 9;

[0024] The lower mold 3 is hollow inside, and a solenoid valve 7 and an air inlet pipe 8 are installed on the left and right sides of the lower mold 3 respectively. A guide plate 20 is provided inside the lower mold 3, and a plurality of air holes 10 are provided on the surface of the lower mold 3. When the lower mold 3 needs to be cooled, the solenoid valve 7 is opened, and air enters the lower mold 3 from the air inlet pipe 8 and is discharged through the solenoid valve 7, so that the lower mold 3 is cooled from the inside.

[0025] A limit seat 14 is installed on the right side of the surface of the base 1. A placement plate 13 is provided inside the limit seat 14. A first cylinder 12 is installed between the placement plate 13 and the base 1. The placement plate 13 can stack multiple metal sheets for manufacturing battery box covers. The limit seat 14 can keep the metal sheets neatly stacked and improve the feeding accuracy of the metal sheets;

[0026] The guide rail 15 is installed to the edge of the surface of the base 1. The guide rail 15 is slidably connected with an electric slide 16. The electric slide 16 is installed with a second cylinder 17. A bracket 18 is installed at the lower end of the second cylinder 17. A suction cup 19 is installed on the surface of the bracket 18, and the suction cup 19 is located above the placement plate 13. The second cylinder 17 controls the suction cup 19 to be close to the uppermost metal sheet to ensure that the metal sheet can be sucked by the suction cup 19. The electric slide 16 controls the sucked metal sheet to move to the surface of the lower mold 3.

[0027] In this embodiment, if Figure 3 As shown, a third cylinder 2 is provided on the upper surface of the base 1, and a top frame 9 is installed on the upper end of the third cylinder 2. The top frame 9 is inserted into the lower mold 3 and is slidably connected with the lower mold 3. When the battery box cover needs to be demolded, the third cylinder 2 drives the top frame 9 to move upward, and the top frame 9 pushes the battery box cover upward, so that the battery box cover is no longer tightly fastened to the surface of the lower mold 3.

[0028] In this embodiment, if Figure 1 As shown, a positioning column 6 is provided at the corner of the lower mold 3, and a positioning sleeve 5 is provided at the corner of the upper mold 4, and the size of the positioning sleeve 5 matches the positioning column 6. When the upper mold 4 and the lower mold 3 are molded together, the positioning column 6 is inserted into the positioning sleeve 5 to achieve precise mold closing and ensure the processing accuracy of the battery box cover.

[0029] In this embodiment, if Figure 1 As shown, a plurality of support rods 11 are provided on the lower surface of the limit seat 14, and the lower ends of the support rods 11 are fixedly connected to the base 1. The first cylinder 12 is located between the limit seat 14 and the base 1. The support rods 11 fix the limit seat 14 to the upper surface of the base 1 and also reserve space for the installation of the first cylinder 12. The piston rod of the first cylinder 12 passes through the limit seat 14 and can slide in the limit seat 14.

[0030] In this embodiment, if Figure 4 As shown, the guide plate 20 has a plurality of flow grooves 21 on its upper surface. The flow grooves 21 are arranged in a semicircular shape and are connected to the air holes 10. The flow grooves 21 guide the air flow, ensuring that the air moves from right to left in the lower mold 3 and dissipates heat evenly for the lower mold 3.

[0031] In this embodiment, if Figure 1 As shown, two suspension frames 22 are fixedly connected to the left and right sides of the upper mold 4 surface. The suspension frames 22 are controlled by matching lifting equipment, so that the upper mold 4 can move up and down to punch the metal sheet into a battery box cover.

[0032] In this embodiment, if Figure 3As shown, the surface of the lower mold 3 is provided with a plurality of sliding holes 23, and the top frame 9 is inserted into the sliding holes 23. When the top frame 9 moves downward, it is in the sliding holes 23, and at the same time, the upper end of the top frame 9 is flush with the sliding holes 23, which can avoid slight deformation of the metal sheet when stamping the metal sheet.

[0033] In this embodiment, if Figure 2 As shown, an extension arm 24 is fixedly connected between the electric slide 16 and the second cylinder 17. The extension arm 24 ensures that the suction cup 19 can extend to the surface of the placement plate 13, thereby improving the accuracy of metal sheet feeding.

[0034] Specifically, when in use, a number of metal sheets are placed on the placement plate 13, and the limiting seat 14 limits the front, back, left, and right sides of the metal sheets to keep the metal sheets neatly stacked. The first cylinder 12 controls the placement plate 13 to move up, and then transports the metal sheets upward. The second cylinder 17 controls the suction cup 19 to move down. After the suction cup 19 sucks the metal sheet, the second cylinder 17 controls the metal sheet to move upward. Then the electric slide 16 moves along the guide rail 15. The electric slide 16 controls the metal sheet sucked by the suction cup 19 to move to the left, so that the metal sheet moves to the surface of the lower mold 3. The second cylinder 17 controls the suction cup 19 to move down so that the metal sheet falls on the surface of the lower mold 3. After the suction of the suction cup 19 is released, the metal sheet is accurately placed on the surface of the lower mold 3.

[0035] The compressed air of the air pump is sent into the lower mold 3 through the air inlet pipe 8. When the metal sheet is stamped, the solenoid valve 7 is opened to allow air to flow in the lower mold 3 to cool down the lower mold 3. When the upper mold 4 moves downward, the upper mold 4 squeezes the metal sheet and stamps the metal sheet into a battery box cover. When the battery box cover is demoulded, the solenoid valve 7 is closed to increase the air pressure in the lower mold 3. At the same time, the third cylinder 2 controls the top frame 9 to move upward. When the upper mold 4 moves upward, the air pressure passes through the air hole 10 to push the middle part of the battery box cover, and the top frame 9 pushes the edge of the battery box cover, thereby realizing lossless demoulding of the battery box cover and better production quality control of the battery box cover.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for a metal battery box cover of an electric vehicle, characterized in that: include: A base (1), wherein a lower mold (3) is mounted on the base (1), and an upper mold (4) is disposed above the lower mold (3); the interior of the lower mold (3) is hollow, and a solenoid valve (7) and an air intake pipe (8) are respectively mounted on the left and right sides of the lower mold (3); a guide plate (20) is disposed inside the lower mold (3), and a plurality of air holes (10) are disposed on the surface of the lower mold (3); A limit seat (14), the limit seat (14) is installed on the right side of the surface of the base (1), a placement plate (13) is provided inside the limit seat (14), and a first cylinder (12) is installed between the placement plate (13) and the base (1); A guide rail (15), the guide rail (15) is mounted to the edge of the surface of the base (1), the guide rail (15) is slidably connected to an electric slide seat (16), the electric slide seat (16) is mounted with a second cylinder (17), a bracket (18) is mounted at the lower end of the second cylinder (17), a suction cup (19) is mounted on the surface of the bracket (18), and the suction cup (19) is located above the placement plate (13).

2. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: A third cylinder (2) is provided on the upper surface of the base (1), a top frame (9) is installed on the upper end of the third cylinder (2), and the top frame (9) is inserted into the lower mold (3) and is slidably connected to the lower mold (3).

3. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: A positioning column (6) is provided at a corner of the lower mold (3), and a positioning sleeve (5) is provided at a corner of the upper mold (4), and the size of the positioning sleeve (5) matches the positioning column (6).

4. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: A plurality of support rods (11) are provided on the lower surface of the limit seat (14), and the lower ends of the support rods (11) are fixedly connected to the base (1), and the first cylinder (12) is located between the limit seat (14) and the base (1).

5. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: The upper surface of the guide plate (20) is provided with a plurality of flow grooves (21), the flow grooves (21) are arranged in a semicircular shape, and the flow grooves (21) are connected to the air holes (10).

6. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: Two suspension frames (22) are fixedly connected to the left and right sides of the surface of the upper mold (4).

7. The stamping die for the metal battery box cover of an electric vehicle according to claim 2, characterized in that: The surface of the lower mold (3) is provided with a plurality of sliding holes (23), and the top frame (9) is inserted into the sliding holes (23).

8. The stamping die for the metal battery box cover of an electric vehicle according to claim 1, characterized in that: An extension arm (24) is fixedly connected between the electric slide seat (16) and the second cylinder (17).

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