A new energy automobile special-shaped fastener cold heading forming die

Abstract

The present application relates to the technical field of mould, especially to a new energy automobile special-shaped fastener cold heading forming die, which comprises a die body, a die groove for embedding a workpiece is formed in the die body, a stamping part is arranged on the upper side of the die body, a material lifting part is arranged on the lower side of the die body, the stamping part can move towards the die body to stamp the workpiece, the material lifting part can move towards the die body to lift the workpiece, the die groove can accommodate the workpiece, the stamping part can stamp the workpiece to realize cold heading forming, the material lifting part can lift the formed workpiece, which is convenient for subsequent operation, so as to realize the cold heading forming machining of the new energy automobile special-shaped fastener.

Description

Technical Field

[0001] This invention relates to the field of mold technology, and in particular to a cold heading mold for irregular fasteners of new energy vehicles. Background Technology

[0002] Fasteners are a wide range of mechanical parts used for fastening connections. They are used in a broad range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold making, and hydraulics. Various types of fasteners can be found on all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters, and supplies, making them the most widely used basic mechanical components. Fasteners are characterized by their numerous varieties and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization.

[0003] Fasteners for new energy vehicles differ significantly from those for conventional vehicles, necessitating the use of specially shaped fasteners, also known as irregular fasteners. These irregular fasteners typically require different processing methods, necessitating the creation of corresponding molds. Summary of the Invention

[0004] To address the significant differences between fasteners used in new energy vehicles and those used in conventional vehicles, which necessitate the use of specially shaped fasteners, i.e., irregular fasteners, this application provides a cold heading mold for irregular fasteners in new energy vehicles, as detailed below.

[0005] A cold heading die for irregular fasteners of new energy vehicles includes a die body with a die groove for inserting workpieces. A stamping part is provided on the upper side of the die body, and an ejector part is provided on the lower side of the die body. The stamping part can move toward the die body to stamp the workpiece, and the ejector part can move toward the die body to lift the workpiece.

[0006] By adopting the above technical solutions, the mold groove can accommodate the workpiece, the stamping part can stamp the workpiece to achieve cold heading, and the ejector part can lift the formed workpiece to facilitate subsequent operations, thereby realizing the cold heading processing of irregular fasteners for new energy vehicles.

[0007] Optionally, the mold body has a top material groove corresponding to the mold groove, the top material groove is connected to the mold groove, and the top material groove is for the top material to extend into.

[0008] By adopting the above technical solution, an ejector groove is opened on the mold body corresponding to the mold groove and connected to the mold groove for the ejector to extend into, so that the ejector can smoothly enter the mold groove to lift the workpiece, which facilitates the demolding operation of the workpiece. Combined with the overall structure of the mold body, stamping parts and ejector, the cold forging of special-shaped fasteners for new energy vehicles can be realized.

[0009] Optionally, the upper side of the mold body is also provided with a transfer gripper, which is used to clamp the workpiece and transport it to the mold body.

[0010] By adopting the above technical solutions, the transfer gripper can automatically transport the workpiece to the mold body, realizing the automation of workpiece transportation, improving production efficiency, reducing manual operation costs, and ensuring that the workpiece is accurately delivered to the mold cavity position, thereby improving processing accuracy and stability.

[0011] Optionally, the stamped part includes a stamping clamp, on which a stamping head is detachably connected, the stamping head being used to clamp the workpiece.

[0012] By adopting the above technical solution, the stamping clamp and the stamping head can be detachably connected, which makes it easy to replace the stamping head to adapt to different stamping requirements. The stamping head can press the workpiece to realize the cold forging operation of irregular fasteners for new energy vehicles.

[0013] Optionally, the stamping chuck has a thread inside, and a hexagonal open clamp is provided on the stamping chuck. The hexagonal open clamp is threadedly connected to the stamping chuck, and the stamping head is embedded in the hexagonal open clamp. When the hexagonal open clamp moves toward the stamping chuck, the hexagonal open clamp can clamp the stamping head inward.

[0014] By adopting the above technical solution, when the hexagonal open jaw rotates towards the inside of the stamping chuck, it can connect with the stamping chuck and also retract inward, thereby clamping the stamping head in the hexagonal open jaw, making it more convenient to change the stamping head.

[0015] Optionally, the ejector includes an ejector clamp, on which an ejector rod is detachably connected, the ejector rod being used to lift the workpiece.

[0016] By adopting the above technical solution, a detachable top material rod can be connected to the top material clamp, which facilitates the replacement of the top material rod and can effectively lift the workpiece.

[0017] Optionally, the top material clamping cylinder is also provided with threads, and a hexagonal open clamp is also provided on the top material clamping cylinder. The hexagonal open clamp is threadedly connected to the top material clamping cylinder, and the top material rod is embedded in the hexagonal open clamp. When the hexagonal open clamp moves toward the top material clamping cylinder, the hexagonal open clamp can clamp the top material rod inward.

[0018] By adopting the above technical solution, when the hexagonal open jaw rotates towards the inside of the top material clamping cylinder, it can connect the hexagonal open jaw with the top material clamping cylinder, and at the same time, it can retract inward, thereby clamping the top material rod in the hexagonal open jaw, making it more convenient to replace the top material rod.

[0019] Optionally, the stamping head is provided with an arc-shaped transition, and the cross-section of the stamping head on the upper side of the arc-shaped transition is larger than the cross-section on the lower side of the arc-shaped transition.

[0020] By adopting the above technical solutions, the stamping head is set with an arc transition and the upper cross-section is larger than the lower cross-section, so that the workpiece is subjected to more uniform force during the stamping process, reducing stress concentration, which is conducive to improving the forming quality and precision of the workpiece.

[0021] Optionally, the top material rod is also provided with an arc-shaped transition, and the cross-section of the top material rod on the upper side of the arc-shaped transition is smaller than the cross-section on the lower side of the arc-shaped transition.

[0022] By adopting the above technical solutions, the ejector rod is set with an arc transition and the lower cross-section is larger than the upper cross-section, so that the workpiece is subjected to more uniform force during the ejection process, reducing stress concentration and reducing the possibility of damage when the ejector rod lifts the workpiece.

[0023] In summary, this application has at least the following beneficial effects: This application addresses the issue that fasteners for new energy vehicles differ significantly from those for conventional vehicles, necessitating the use of specially shaped fasteners, i.e., irregular fasteners. These irregular fasteners typically require different processing methods and corresponding molds. This application addresses this problem by providing a stamping part and an ejector that allow for easy replacement of the stamping head and ejector rod, enabling more convenient stamping and contact of the workpiece. When processing different types of irregular fasteners, the stamping head can be changed more quickly, further improving processing convenience and thus production efficiency. Attached Figure Description

[0024] Figure 1 This is a perspective view of Example 1.

[0025] Figure 2 This is a cross-sectional view of Embodiment 1.

[0026] Figure 3 This is a cross-sectional view of Embodiment 2.

[0027] Explanation of reference numerals in the attached figures: 1. Mold body; 11. Mold groove; 12. Ejector groove; 2. Stamped parts; 21. Stamping clamp; 22. Stamping head; 221. Arc transition; 222. Hexagonal open clamp; 3. Ejector component; 31. Ejector clamp; 32. Ejector rod; 4. Transfer grippers; 5. Demolding ring; 51. Iron ball; 52. Motion track; 53. Drive coil; 54. Vibration generator; 55. Return spring; Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0029] A cold heading die for irregularly shaped fasteners in new energy vehicles, such as Figure 1 and Figure 2 As shown, the device includes a mold body 1, on which a mold groove 11 for inserting a workpiece is provided. A stamping part 2 is provided on the upper side of the mold body 1, and an ejector part 3 is provided on the lower side of the mold body 1. The stamping part 2 can move towards the mold body 1 to stamp the workpiece, and the ejector part 3 can move towards the mold body 1 to lift the workpiece. In specific implementation, the mold body 1 has a mold groove 11 for inserting a workpiece. The shape of the mold groove 11 is designed according to the shape of the irregular fastener, and its structural feature is that it has a contour that matches the shape of the workpiece, which can accurately limit the position and shape of the workpiece. The mold groove 11 can be manufactured using high-precision machining processes to ensure its dimensional accuracy and surface quality. For example, the mold groove 11 can be manufactured by electrical discharge machining or precision milling. In practical applications, the surface of the mold groove 11 can also be specially treated according to different workpiece requirements, such as hard chrome plating, to improve its wear resistance and corrosion resistance.

[0030] like Figure 1 and Figure 2 As shown, an ejector groove 12 is provided on the mold body 1 corresponding to the mold groove 11. The ejector groove 12 is connected to the mold groove 11, and the ejector component 3 extends into the ejector groove 12. In specific implementation, the processing technology of the ejector groove 12 is the same as that of the mold groove 11, but it is necessary to ensure that the ejector rod 32 can extend into it normally to avoid the situation where it cannot extend.

[0031] like Figure 1 and Figure 2 As shown, a transfer gripper 4 is also provided on the upper side of the mold body 1. The transfer gripper 4 is used to clamp the workpiece and transport it to the mold body 1. In specific implementation, the transfer gripper 4 can be a mechanical gripper or a pneumatic gripper, which has a certain clamping force and flexibility. The transfer gripper 4 can be driven by a robot or other automated equipment to realize the automatic transport of the workpiece. For example, when the workpiece needs to be cold-headed, the transfer gripper 4 can clamp the workpiece from the loading position and transport it into the mold groove 11 of the mold body 1; after the workpiece is formed, the transfer gripper 4 can remove the workpiece from the mold body 1 and send it to the next process.

[0032] like Figure 1 and Figure 2As shown, the stamped part 2 includes a stamping clamp 21, on which a stamping head 22 is detachably connected. The stamping head 22 is used to clamp the workpiece. The stamping clamp 21 has internal threads and a hexagonal open clamp is provided on it. The hexagonal open clamp is threadedly connected to the stamping clamp 21, and the stamping head 22 is embedded within the hexagonal open clamp. When the hexagonal open clamp moves towards the stamping clamp 21, it clamps the stamping head 22 inward. In specific implementations, the stamping clamp 21 can be made of high-strength alloy steel to ensure it can withstand greater pressure during the stamping process. The stamping head 22 is used to clamp the workpiece. Its shape is designed according to the forming requirements of the workpiece. The stamping head 22 can be installed on the stamping chuck 21 in a detachable manner, which makes it easy to replace different stamping heads 22 according to different workpieces. The hexagonal open clamp can be connected by moving into the stamping chuck 21 through a threaded connection. The internal shape of the stamping chuck 21 is conical. Therefore, when the hexagonal open clamp moves into the stamping chuck 21, it can continuously retract inward, thereby clamping the stamping head 22.

[0033] like Figure 1 and Figure 2 As shown, the ejector component 3 includes an ejector clamp 31, on which an ejector rod 32 is detachably connected. The ejector rod 32 is used to lift the workpiece. The ejector clamp 31 also has threads inside and a hexagonal open clamp is provided on it. The hexagonal open clamp is threadedly connected to the ejector clamp 31, and the ejector rod 32 is embedded in the hexagonal open clamp. When the hexagonal open clamp moves towards the ejector clamp 31, it can clamp the ejector rod 32 inward. In specific implementation, the material of the ejector clamp 31 is similar to that of the stamping clamp 21, using high-strength alloy steel. The ejector rod 32, used to lift the workpiece, is designed according to the bottom shape of the workpiece.

[0034] like Figure 1 and Figure 2 As shown, the stamping head 22 is provided with an arc-shaped transition 221, and the cross-section of the stamping head 22 on the upper side of the arc-shaped transition 221 is larger than the cross-section of the lower side of the arc-shaped transition 221. The ejector rod 32 is also provided with an arc-shaped transition 221, and the cross-section of the ejector rod 32 on the upper side of the arc-shaped transition 221 is smaller than the cross-section of the lower side of the arc-shaped transition 221. In practical implementation, the design of the arc-shaped transition 221 on the stamping head 22 allows the stamping head 22 to better contact the workpiece during the stamping process, avoiding stress concentration and improving forming quality. The design of the arc-shaped transition 221 on the ejector rod 32 allows the ejector rod 32 to lift the workpiece more smoothly, reducing damage to the workpiece.

[0035] This embodiment also provides a cold heading forming method for irregularly shaped fasteners for new energy vehicles, including the aforementioned cold heading forming mold, and employing the following method: A. The workpiece is fed into the mold groove 11 of the mold body 1 by the transfer gripper 4; B. Stamping part 2 is cold-forged workpiece facing mold body 1; C. Remove stamped part 2; D. The ejector component 3 moves toward the mold body 1 to lift the workpiece; E. Transfer gripper 4 removes the workpiece; F. Repeat the AE step to achieve continuous processing.

[0036] Working principle: The detachable stamping head allows for more convenient replacement, thereby improving production and processing efficiency. Example

[0037] like Figure 3 As shown, the main difference between Embodiment 2 and Embodiment 1 is that the mold body 1 in Embodiment 2 is provided with an auxiliary demolding component, which includes a demolding ring 5. An iron ball 51 is provided inside the demolding ring 5. The demolding ring 5 is detachably connected to the lower side of the mold body 1. A moving track is provided inside the demolding ring 5 corresponding to the iron ball 51. The moving track is connected end to end, and the iron ball 51 can rotate along the moving track. Multiple drive coils 53 are provided on the demolding ring 5 corresponding to the moving track. The drive coils 53 can generate a magnetic field to drive the iron ball 51 to move along the moving track. A vibration generating plate 54 is provided on the moving track 52 corresponding to the moving track. A reset spring 55 is provided between the vibration generating plate 54 and the demolding ring 5. In specific implementation, the demolding ring 5 is provided with a groove for the vibration generating plate 54 to retract. When the vibration generating plate 54 is impacted, it can retract into the groove. When the vibration generating plate 54 is impacted, it will generate vibration, which will drive the entire demolding ring 5 to vibrate. Therefore, when the drive coil 53 is activated, the iron ball 51 will be driven to impact the vibration generating plate 54, thereby causing the demolding ring 5 to vibrate. The vibration generating plate 54 will repeatedly retract and pop out under the reset of the return spring 55, and repeatedly impact the iron ball 51, thereby continuously generating vibration. The vibration generated by the demolding ring 5 will drive the mold body 1 to vibrate to a certain extent, thereby loosening the pressed workpiece from the mold groove 11, thereby further improving the demolding effect and avoiding the situation where it is difficult to eject the material during ejection.

[0038] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cold heading forming mold for irregularly shaped fasteners in new energy vehicles, characterized in that: The mold includes a mold body (1), on which a mold groove (11) for inserting a workpiece is provided. A stamping part (2) is provided on the upper side of the mold body (1), and an ejector part (3) is provided on the lower side of the mold body (1). The stamping part (2) can move toward the mold body (1) to stamp the workpiece, and the ejector part (3) can move toward the mold body (1) to lift the workpiece.

2. The cold heading forming mold for irregular fasteners of new energy vehicles according to claim 1, characterized in that: The mold body (1) has a top material groove (12) corresponding to the mold groove (11). The top material groove (12) is connected to the mold groove (11) and the top material groove (12) is for the top material component (3) to extend into.

3. The cold heading forming mold for irregular fasteners of new energy vehicles according to claim 1, characterized in that: The upper side of the mold body (1) is also provided with a transfer gripper (4), which is used to clamp the workpiece and transport it to the mold body (1).

4. The cold heading forming mold for irregular fasteners of new energy vehicles according to claim 1, characterized in that: The stamping part (2) includes a stamping clamp (21), on which a stamping head (22) is detachably connected, and the stamping head (22) is used to press the workpiece.

5. A cold heading forming die for irregularly shaped fasteners for new energy vehicles according to claim 4, characterized in that: The stamping clamp (21) has a thread inside, and a hexagonal open clamp is provided on the stamping clamp (21). The hexagonal open clamp is threadedly connected to the stamping clamp (21), and the stamping head (22) is embedded in the hexagonal open clamp. When the hexagonal open clamp moves toward the stamping clamp (21), the hexagonal open clamp can clamp the stamping head (22) inward.

6. A cold heading forming die for irregularly shaped fasteners for new energy vehicles according to claim 5, characterized in that: The top material component (3) includes a top material clamp (31), on which a top material rod (32) is detachably connected, and the top material rod (32) is used to lift the workpiece.

7. A cold heading forming die for irregularly shaped fasteners for new energy vehicles according to claim 6, characterized in that: The top material clamp (31) is also threaded, and a hexagonal open clamp is also provided on the top material clamp (31). The hexagonal open clamp is threadedly connected to the top material clamp (31). The top material rod (32) is embedded in the hexagonal open clamp. When the hexagonal open clamp moves toward the top material clamp (31), the hexagonal open clamp can clamp the top material rod (32) inward.

8. A cold heading forming die for irregularly shaped fasteners for new energy vehicles according to claim 6, characterized in that: The stamping head (22) is provided with an arc-shaped transition (221), and the cross-section of the stamping head (22) on the upper side of the arc-shaped transition (221) is larger than the cross-section of the lower side of the arc-shaped transition (221).

9. A cold heading forming die for irregularly shaped fasteners for new energy vehicles according to claim 8, characterized in that: An arc-shaped transition (221) is also provided on the top material rod (32), and the cross-section of the top material rod (32) on the upper side of the arc-shaped transition (221) is smaller than the cross-section of the lower side of the arc-shaped transition (221).

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