Automobile tire locking nut mold

CN224764193UActive Publication Date: 2026-09-18JIAXING NESIDE MOULD TECH CO LTD
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Patent Information

Application Number
CN202522268610.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-09-18
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

[0002]汽车轮胎锁紧螺帽(或称车轮螺母)是车辆轮毂与车轮连接的关键紧固件,其成型质量直接关系到行车安全,此类螺帽通常采用锻压成型工艺制造,传统的锻压模具是整体式的,当生产不同型号的产品时,需要将整套模具都拆下来,才能更换模具,较为麻烦繁琐,且经常拆装会导致相应的零部件受损增大,尤其对于中小批量生产的产品,因相同型号的产品生产周期往往不长,换型较频繁,这样就会浪费大量的时间在换模上,影响了产品生产的进度,并且使用过程中人们发现现有的锻压模具存在着产品容易粘连在模具上,导致后续处理较为麻烦,为此授权公告号为CN214108653U公开了“一种螺帽锻压成型模具”,该方案通过旋转电机、支撑弹簧、固定爪、旋转齿轮和固定齿条,可以实现拆卸模具面板的功能,能够快速拆卸模具面板进行更换,提高工作人员的工作效率

Benefits of technology

1、与现有技术相比,该汽车轮胎锁紧螺帽模具,通过设置Z型板、滑动柱、限位盘、连接块、第一复位弹簧、卡接块、防护框和透明防护板等,在冲压板下降时,防护框的底部先与模具面板的上表面接触,然后继续下压,使滑动柱在对应的Z型板上滑动,并通过连接块压缩第一复位弹簧,使冲压时,防护框和透明防护板形成一个防护区域,有效防止冲压时产生的碎屑飞溅,保障操作人员的安全,同时,使操作人员能够清晰地观察模具内部的工作状态和产品质量。

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Abstract

The utility model discloses a kind of automobile tire locking screw cap mould, including mould installation box, the upper surface of mould installation box is equipped with mould panel, the upper surface of mould installation box is fixedly connected with support frame, the bottom of support frame is fixedly connected with stamping cylinder, the piston end of stamping cylinder is fixedly connected with stamping plate.The utility model, by setting Z-shaped plate, sliding column, limit disc, connecting block, first reset spring, clamping block, protective frame and transparent protective plate etc., when stamping plate drops, the bottom of protective frame is first contacted with the upper surface of mould panel, then continue to press down, make sliding column slide on corresponding Z-shaped plate, and by connecting block compression first reset spring, when stamping, protective frame and transparent protective plate form a protection area, effectively prevent the splashing of debris generated when stamping, guarantee the safety of operator, simultaneously, make operator can clearly observe the working condition and product quality inside mould.
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Description

Technical Field

[0001] This utility model relates to the field of nut mold technology, and in particular to a car tire locking nut mold. Background Technology

[0002] Tire locking nuts (or wheel nuts) are critical fasteners connecting vehicle wheel hubs and wheels, and their forming quality directly affects driving safety. These nuts are typically manufactured using a forging process. Traditional forging dies are integral, requiring the entire die set to be disassembled for die replacement when producing different models, which is cumbersome and inconvenient. Frequent disassembly and assembly can also lead to increased damage to the corresponding components. This is especially problematic for small-batch production, where the production cycle for the same model is often short and die changes are frequent, wasting a significant amount of time on die changes and impacting production progress. Furthermore, it has been found that existing forging dies have a tendency for products to stick to them, making subsequent processing difficult. To address this, CN214108653U discloses "a nut forging die," which utilizes a rotary motor, support spring, fixing claw, rotary gear, and fixing rack to enable the disassembly of the die panel, allowing for quick replacement and improving worker efficiency.

[0003] However, in this scheme, the instantaneous pressure during the forging process is extremely high, and the material used for the car tire nut is of high strength. Under high-speed stamping, if there are minor defects in the blank or if the mold develops cracks that are difficult to detect with the naked eye due to fatigue, metal fragments may fly out instantly, causing serious injury to the operator's face and body. Therefore, a car tire locking nut mold is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a mold for locking car tire nuts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mold for locking car tire nuts, comprising a mold mounting box, a mold panel mounted on the upper surface of the mold mounting box, a support frame fixedly connected to the upper surface of the mold mounting box, a stamping cylinder fixedly connected to the bottom of the support frame, a stamping plate fixedly connected to the piston end of the stamping cylinder, a fixing head fixedly connected to the bottom of the stamping plate, a protective structure provided on the stamping plate, and two quick-release components provided below the support frame; The protective structure includes two Z-shaped plates, one side of each Z-shaped plate is fixedly connected to the corresponding side of the stamping plate, and a sliding column is slidably connected through the upper surface of each Z-shaped plate. A limit plate is fixedly connected to the upper surface of each sliding column. The bottom of the protective frame first contacts the upper surface of the mold panel, and then continues to press down, so that the sliding column slides on the corresponding Z-shaped plate.

[0006] As a further description of the above technical solution: Each sliding column is fixedly connected to a connecting block at its bottom. Each connecting block has a snap-fit ​​groove at its bottom, and a snap-fit ​​block snaps into each snap-fit ​​groove. Each snap-fit ​​block has a snap-fit ​​hole on one side. The bottoms of two snap-fit ​​blocks are fixedly connected to a protective frame. Transparent protective plates are fixedly installed on all four sides of the protective frame. The bottom of the protective frame first contacts the upper surface of the mold panel, and then continues to press down, causing the sliding column to slide on the corresponding Z-shaped plate and compressing the first return spring through the connecting block.

[0007] As a further description of the above technical solution: Each of the sliding columns is fitted with a first return spring. One end of each first return spring is fixedly connected to one side of the corresponding Z-shaped plate, and the other end is fixedly connected to the upper surface of the corresponding connecting block. The first return spring on the sliding column not only provides a return force, but also plays a buffering role when the protective frame comes into accidental contact with the workpiece or mold.

[0008] As a further description of the above technical solution: The quick-release assembly includes a fixed frame fixedly connected to one side of the connecting block. A sliding rod is slidably connected through one side of the fixed frame. A handle is rotatably connected to one end of the sliding rod. One side of the handle is in contact with the outer side of the fixed frame. Pulling the handle drives the sliding rod to move.

[0009] As a further description of the above technical solution: The other end of the sliding rod is fixedly connected to a snap-fit ​​post. The snap-fit ​​post is slidably connected to one side of the connecting block and is adapted to the corresponding snap-fit ​​hole. The sliding rod drives the snap-fit ​​post to move, so that the snap-fit ​​post is removed from the snap-fit ​​hole of the snap-fit ​​block.

[0010] As a further description of the above technical solution: A second return spring is fitted on the sliding rod. One end of the second return spring is fixedly connected to the inside side of the fixed frame, and the other end is fixedly connected to one side of the snap-fit ​​post. The elastic force of the second return spring will always press the snap-fit ​​post into the snap-fit ​​hole, ensuring that the connection between the protective frame and the stamping plate is firm and reliable and will not loosen due to equipment vibration.

[0011] As a further description of the above technical solution: Two telescopic rods are fixedly connected to the bottom of the support frame. The other end of each telescopic rod is fixedly connected to the upper surface of the stamping plate. A fixing spring is sleeved on each telescopic rod. One end of each fixing spring is fixedly connected to the bottom of the support frame, and the other end is fixedly connected to the upper surface of the stamping plate. The telescopic rods and fixing springs installed between the support frame and the stamping plate play a role in auxiliary guidance and buffer reset.

[0012] This utility model has the following beneficial effects: 1. Compared with existing technologies, this automotive tire locking nut mold, by setting up a Z-shaped plate, sliding column, limiting plate, connecting block, first return spring, snap-fit ​​block, protective frame and transparent protective plate, etc., when the stamping plate descends, the bottom of the protective frame first contacts the upper surface of the mold panel, and then continues to press down, causing the sliding column to slide on the corresponding Z-shaped plate. The connecting block compresses the first return spring, so that the protective frame and transparent protective plate form a protective area during stamping, effectively preventing the flying of debris generated during stamping, ensuring the safety of operators, and at the same time, allowing operators to clearly observe the working status inside the mold and the product quality.

[0013] 2. Compared with the existing technology, this automobile tire locking nut mold, by setting a fixed frame, sliding rod, snap-fit ​​post, handle and second return spring, pulls the handle to drive the sliding rod to move, so that the sliding rod drives the snap-fit ​​post to move, the snap-fit ​​post exits from the snap-fit ​​hole of the snap-fit ​​block, and compresses the second return spring, thereby removing the entire protective frame from the connecting block, which is convenient for workers to clean and maintain the transparent protective plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a car tire locking nut mold proposed in this utility model; Figure 2 Exploded view of the telescopic rod and fixing spring of the automobile tire locking nut mold proposed in this utility model; Figure 3 Exploded view of the protective structure of a car tire locking nut mold proposed in this utility model; Figure 4 This is an exploded view of the quick-release structure of a car tire locking nut mold proposed in this utility model.

[0015] Legend: 1. Mold mounting box; 2. Mold panel; 3. Support frame; 4. Stamping cylinder; 5. Stamping plate; 6. Fixing head; 7. Protective structure; 701. Z-shaped plate; 702. Sliding column; 703. Limiting plate; 704. Connecting block; 705. First return spring; 706. Snap-fit ​​block; 707. Protective frame; 708. Transparent protective plate; 8. Quick-release assembly; 801. Fixing frame; 802. Sliding rod; 803. Snap-fit ​​column; 804. Handle; 805. Second return spring; 9. Telescopic rod; 10. Fixing spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 4 This utility model provides a mold for locking car tire nuts: including a mold mounting box 1, a mold panel 2 mounted on the upper surface of the mold mounting box 1, a support frame 3 fixedly connected to the upper surface of the mold mounting box 1, a stamping cylinder 4 fixedly connected to the bottom of the support frame 3, a stamping plate 5 fixedly connected to the piston end of the stamping cylinder 4, two telescopic rods 9 fixedly connected to the bottom of the support frame 3, the other end of each telescopic rod 9 being fixedly connected to the upper surface of the stamping plate 5, a fixing spring 10 sleeved on each telescopic rod 9, one end of each fixing spring 10 being fixedly connected to the bottom of the support frame 3, and the other end being fixedly connected to the upper surface of the stamping plate 5. After stamping, the piston rod of the stamping cylinder 4 retracts, driving the stamping plate 5 and the fixing head 6 to return to the initial position. At this time, the telescopic rods 9 and the fixing springs 10 installed between the support frame 3 and the stamping plate 5 play the role of auxiliary guidance and buffer reset. The bottom of the stamping plate 5 is fixedly connected to the fixing head 6, the stamping plate 5 is provided with a protective structure 7, and two quick-release components 8 are provided below the support frame 3. To achieve the purpose of protection, the protective structure 7 includes two Z-shaped plates 701. One side of each Z-shaped plate 701 is fixedly connected to the corresponding side of the stamping plate 5. A sliding post 702 is slidably connected through the upper surface of each Z-shaped plate 701. A limit plate 703 is fixedly connected to the upper surface of each sliding post 702. A connecting block 704 is fixedly connected to the bottom of each sliding post 702. A first return spring 705 is sleeved on each sliding post 702. One end of each first return spring 705 is fixedly connected to one side of the corresponding Z-shaped plate 701, and the other end is fixedly connected to the upper surface of the corresponding connecting block 704. A snap-fit ​​groove is opened at the bottom of each connecting block 704, and a snap-fit ​​block is snapped into each snap-fit ​​groove. 706, each snap-fit ​​block 706 has a snap-fit ​​hole on one side, and the bottom of two snap-fit ​​blocks 706 are fixedly connected to a protective frame 707. Transparent protective plates 708 are fixedly installed on the four sides of the protective frame 707. When the stamping plate 5 descends, the bottom of the protective frame 707 first contacts the upper surface of the mold panel 2, and then continues to press down, so that the sliding column 702 slides on the corresponding Z-shaped plate 701, and the first return spring 705 is compressed through the connecting block 704. During stamping, the protective frame 707 and the transparent protective plate 708 form a protective area, which effectively prevents the debris generated during stamping from splashing, ensuring the safety of the operator. At the same time, it allows the operator to clearly observe the working status inside the mold and the product quality. To achieve rapid assembly and disassembly, the quick-release assembly 8 includes a fixed frame 801 fixedly connected to one side of the connecting block 704. A sliding rod 802 is slidably connected through one side of the fixed frame 801. A handle 804 is rotatably connected to one end of the sliding rod 802. One side of the handle 804 is in contact with the outer side of the fixed frame 801. A locking post 803 is fixedly connected to the other end of the sliding rod 802. A second return spring 805 is sleeved on the sliding rod 802. One end of the second return spring 805 is in contact with the inner side of the fixed frame 801. One end is fixedly connected to the other end, and the other end is fixedly connected to one side of the snap-fit ​​post 803. The snap-fit ​​post 803 is slidably connected through one side of the connecting block 704 and is adapted to the corresponding snap-fit ​​hole. Pulling the handle 804 drives the sliding rod 802 to move. The sliding rod 802 drives the snap-fit ​​post 803 to move, so that the snap-fit ​​post 803 is disengaged from the snap-fit ​​hole of the snap-fit ​​block 706 and the second return spring 805 is compressed, thereby removing the entire protective frame 707 from the connecting block 704, making it convenient for staff to clean and maintain the transparent protective plate 708.

[0018] Working principle: When the stamping plate 5 descends, the bottom of the protective frame 707 first contacts the upper surface of the mold panel 2, and then continues to press down, causing the sliding column 702 to slide on the corresponding Z-shaped plate 701. The first return spring 705 is compressed through the connecting block 704, so that the protective frame 707 and the transparent protective plate 708 form a protective area during stamping, effectively preventing the flying of debris generated during stamping and ensuring the safety of the operator. At the same time, it allows the operator to clearly observe the working status inside the mold and the product quality. Pulling the handle 804 drives the sliding rod 802 to move. The sliding rod 802 drives the locking column 803 to move, causing the locking column 803 to exit from the locking hole of the locking block 706 and compress the second return spring 805, thereby removing the entire protective frame 707 from the connecting block 704, making it convenient for the staff to clean and maintain the transparent protective plate 708.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold for locking nuts on automobile tires, comprising a mold mounting box (1), characterized in that: The upper surface of the mold mounting box (1) is equipped with a mold panel (2), and the upper surface of the mold mounting box (1) is fixedly connected with a support frame (3). The bottom of the support frame (3) is fixedly connected to a stamping cylinder (4), and the piston end of the stamping cylinder (4) is fixedly connected to a stamping plate (5). The bottom of the stamping plate (5) is fixedly connected to a fixing head (6), the stamping plate (5) is provided with a protective structure (7), and two quick-release components (8) are provided below the support frame (3). The protective structure (7) includes two Z-shaped plates (701), one side of each of the two Z-shaped plates (701) is fixedly connected to the side corresponding to the stamping plate (5), and a sliding column (702) is slidably connected through the upper surface of each Z-shaped plate (701), and a limit plate (703) is fixedly connected to the upper surface of each sliding column (702).

2. The automobile tire locking nut mold according to claim 1, characterized in that: Each sliding column (702) is fixedly connected to a connecting block (704) at its bottom. Each connecting block (704) has a snap-fit ​​groove at its bottom. Each snap-fit ​​groove has a snap-fit ​​block (706) snap-fitted into it. Each snap-fit ​​block (706) has a snap-fit ​​hole on one side. The bottoms of two snap-fit ​​blocks (706) are fixedly connected to a protective frame (707). Transparent protective plates (708) are fixedly installed on the four sides of the protective frame (707).

3. A mould for a wheel nut cap for a vehicle tyre according to claim 2, characterised in that: Each of the sliding columns (702) is fitted with a first return spring (705). One end of each first return spring (705) is fixedly connected to one side of the corresponding Z-shaped plate (701), and the other end is fixedly connected to the upper surface of the corresponding connecting block (704).

4. The mold for a cap of a wheel lock of a vehicle according to claim 2, wherein: The quick-release assembly (8) includes a fixed frame (801) fixedly connected to one side of the connecting block (704). A sliding rod (802) is slidably connected through one side of the fixed frame (801). A handle (804) is rotatably connected to one end of the sliding rod (802). One side of the handle (804) is in contact with the outer side of the fixed frame (801).

5. A mould for a wheel nut cap for a motor vehicle tyre according to claim 4, characterised in that: The other end of the sliding rod (802) is fixedly connected to a snap-fit ​​post (803), which is slidably connected through the connecting block (704) on one side and is adapted to the corresponding snap-fit ​​hole.

6. A mould for a wheel nut cap for a vehicle tyre according to claim 5, characterised in that: A second return spring (805) is sleeved on the sliding rod (802). One end of the second return spring (805) is fixedly connected to one side of the inside of the fixed frame (801), and the other end is fixedly connected to one side of the snap-fit ​​post (803).

7. The automotive tire locking nut mold as defined in claim 1, wherein: The bottom of the support frame (3) is fixedly connected to two telescopic rods (9). The other end of each telescopic rod (9) is fixedly connected to the upper surface of the stamping plate (5). Each telescopic rod (9) is fitted with a fixing spring (10). One end of each fixing spring (10) is fixedly connected to the bottom of the support frame (3), and the other end is fixedly connected to the upper surface of the stamping plate (5).

Citation Information

Patent Citations

  • Nut forging and pressing forming die

    CN214108653U