Positioning point pressing die for nitrogen cover

By designing a positioning point pressing mold for nitrogen hoods, and utilizing the precise positioning of screws and slide rails as well as the uniform pressure design of mold components, the problem of low efficiency in manual positioning is solved, achieving efficient and stable positioning point pressing, and adapting to the processing of nitrogen hoods of different shapes.

CN223961794UActive Publication Date: 2026-03-03SHANGHAI SHENGYONGCHENG SEMICON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In the existing technology, the positioning point pressing of the nitrogen hood mainly relies on manual operation, which is inefficient and makes it difficult to ensure the consistency and accuracy of the positioning points, affecting the connection accuracy of the nitrogen hood with other components and the production cost.

Method used

A positioning point pressing mold was designed, comprising a base, slide rail, screw, cylinder, and mold assembly. Precise positioning is achieved through the cooperation of the screw and slide rail. The design of the adjusting nut and mold assembly ensures uniform pressure distribution. The combination of concave and convex points forms positioning points of specific shapes and depths.

Benefits of technology

It improves the accuracy and efficiency of positioning point pressing, ensures the stability and consistency of nitrogen hood processing, reduces deviations caused by manual operation, adapts to processing requirements of different thicknesses and shapes, and improves the practicality and reliability of molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of nitrogen hood processing, and discloses a positioning point pressing die for a nitrogen hood, which comprises a base and a processing part body, a connecting frame is fixedly mounted on the outer surface of the base, and a sliding rail seat is fixedly mounted at the other end, far away from the base, of the connecting frame. A fixing block is fixedly installed at the other end, away from the base, of the sliding rail base, and a screw is rotationally installed on the outer surface of the fixing block. According to the positioning point pressing die for the nitrogen cover, large clamping force can be generated through small driving force, positioning point pressing is carried out on a machined part body, positioning points in specific shapes and depths can be formed on the machined part body through cooperation of concave points and convex points, different machining requirements are met, the die assembly is relatively compact in structure, and the machining cost is reduced. According to the positioning point pressing die, efficient positioning point pressing operation can be achieved in a limited space, the practicability and reliability of the die are improved, the machining stability of the die can be improved, and the problems of position deviation, uneven depth and the like of positioning points in manual operation are solved.
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Description

Technical Field

[0001] This utility model relates to the field of nitrogen hood processing technology, specifically a positioning point pressing mold for a nitrogen hood. Background Technology

[0002] In many industries, such as automobile manufacturing, nitrogen gas shields are an important component. The precision of their production and processing has a critical impact on the performance and quality of the entire product. Nitrogen gas shields usually have complex shapes and structures, and require precise matching with other components during subsequent assembly.

[0003] Nitrogen gas covers typically require precise assembly with other components. For example, in automotive engine systems, nitrogen gas covers may need to be closely integrated with components such as intake pipes and sensors. Positioning points can be precisely created on the nitrogen gas cover using a positioning point pressing mold. These positioning points act like precise "markers" to ensure that the relative positions of the nitrogen gas cover with other components are accurate during assembly. Without precise positioning points, misalignment between components may occur during assembly, leading to problems such as gas leakage and unstable connections, which can affect the performance and safety of the entire system.

[0004] While traditional nitrogen hoods can be manufactured normally, the processing technology still has many shortcomings in terms of positioning point pressing. It is generally done manually, which is not only inefficient, but also makes it difficult to ensure the consistency and accuracy of each positioning point. Due to the subjectivity and instability of the workers' operation, it is easy to cause problems such as positional deviation and uneven depth of the positioning points, which in turn affects the connection accuracy of the nitrogen hood with other components, increases assembly difficulty and production costs. Moreover, the current technology can only produce a large number of products and is not suitable for small-batch customization, especially for sample products, which can easily lead to poor overall mold versatility. Summary of the Invention

[0005] This invention provides a positioning point pressing mold for a nitrogen hood, aiming to solve the problem that the existing technology generally uses manual positioning and pressing, which is not only inefficient but also makes it difficult to ensure the consistency and accuracy of each positioning point.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A positioning point pressing mold for a nitrogen hood includes a base and a workpiece body. A connecting frame is fixedly installed on the outer surface of the base. A slide rail seat is fixedly installed at the other end of the connecting frame away from the base. A fixing block is fixedly installed at the other end of the slide rail seat away from the base. A screw is rotatably installed on the outer surface of the fixing block. A rotating block is fixedly installed at the other end of the screw near the fixing block. A movable frame is threadedly connected to the outer surface of the screw. A cylinder is fixedly installed on the outer surface of the movable frame. A pressure shaft is fixedly installed on the output shaft of the cylinder. A pressure placement seat is fixedly installed on the outer surface of the base. A sliding groove is formed on the outer surface of the placement seat. A slider is slidably connected to the inner surface of the sliding groove. A mold assembly is fixedly installed at the other end of the slider away from the sliding groove.

[0008] Preferably, the movable frame is adapted to the screw, and the movable frame is slidably connected to the slide rail seat.

[0009] Through the above technical solution, rotating the rotating block drives the screw to rotate. Since the screw is threadedly connected to the moving frame and the moving frame is restricted by the slide rail seat to slide only in a straight line, the moving frame will move horizontally along the slide rail seat when the screw rotates. This can adjust the horizontal position of the moving frame, thereby driving the cylinder and pressure shaft and other components to be accurately positioned in the horizontal direction, improving the positioning accuracy and efficiency, and facilitating the subsequent precise positioning point pressing operation on the nitrogen cover processing part body.

[0010] Preferably, an adjusting nut is provided on the outer surface of the pressure shaft, and a pressure block is fixedly installed at the end of the pressure shaft near the adjusting nut. The pressure block is located at the end of the mold assembly near the cylinder, and the two are located on the same vertical horizontal line.

[0011] Through the above technical solution, the setting of the adjusting nut allows the stroke of the pressure shaft to be flexibly adjusted, which can adapt to nitrogen hood processing parts of different thicknesses or shapes. The pressure block and the mold assembly are located on the same vertical horizontal line, ensuring that the pressure can be applied vertically and evenly to the mold assembly, avoiding positioning point pressing quality problems caused by uneven pressure, and improving the accuracy and consistency of product processing.

[0012] Preferably, the mold assembly includes a lower beam with a recessed point on its outer surface, a fulcrum fixedly installed at one end of the lower beam, an upper beam rotatably installed at the other end of the fulcrum away from the lower beam, an upper mold fixedly installed on the outer surface of the upper beam, a protrusion fixedly installed at the other end of the upper mold away from the upper beam, and a lower mold fixedly installed on the outer surface of the lower beam.

[0013] The above technical solution involves placing the nitrogen hood workpiece body on the lower mold, driving the pressure shaft through a cylinder to move the pressure block downwards, and applying pressure to the fulcrum at one end of the lower beam, causing the lower beam to rotate around the fulcrum, thereby driving the lower mold upwards. At the same time, the upper beam rotates in the opposite direction around the fulcrum, causing the upper mold to move downwards. The protrusion of the upper mold cooperates with the lower mold to press the workpiece body at the positioning point.

[0014] Preferably, the concave points and convex points are adapted to each other, and the workpiece body is located between the upper mold and the lower mold.

[0015] The above technical solution can generate a large clamping force with a small driving force to press the positioning points of the workpiece body. The combination of concave and convex points can form positioning points of specific shapes and depths on the workpiece body to meet different processing needs. In addition, the mold component structure is relatively compact, which can realize efficient positioning point pressing operation in a limited space, thus improving the practicality and reliability of the mold.

[0016] Preferably, a fixing bolt is fixedly installed on the outer surface of the lower mold, and two identical fixing bolts are provided, with the two fixing bolts fixedly installed on the outer surface of the lower mold symmetrically distributed about the center line of the lower mold.

[0017] By employing the above technical solution, when installing the lower mold, the lower mold is placed on the slider. The two symmetrically distributed fixing bolts and the slider prevent the lower mold from shifting or shaking due to uneven force or vibration during the pressing process. This ensures the accuracy and stability of the positioning point pressing, and improves the reliability and service life of the mold.

[0018] Preferably, the slider and the groove are slidably connected, and the cross-sections of the groove and the slider are T-shaped.

[0019] Through the above technical solution, the "T"-shaped groove is connected to the slider, so that the slider can only slide in a specific direction in the groove, and will not detach vertically or shift laterally. This ensures the accuracy and stability of the mold assembly when adjusting its position in the horizontal direction. This sliding connection method makes it easy to quickly adjust the position of the mold assembly according to different processing requirements, improves the flexibility and adaptability of the mold, and also helps to improve production efficiency.

[0020] Compared with the prior art, the positioning point pressing mold for nitrogen hood provided by this utility model has the following beneficial effects:

[0021] 1. This positioning point pressing mold for nitrogen hood can generate a large clamping force with a small driving force to press the positioning points of the workpiece. The combination of concave and convex points can form positioning points of specific shapes and depths on the workpiece to meet different processing requirements. In addition, the mold component structure is relatively compact, which can realize efficient positioning point pressing operation in a limited space, improve the practicality and reliability of the mold, improve its stability during processing, and avoid problems such as position deviation and uneven depth of positioning points caused by manual operation.

[0022] 2. The positioning point pressing mold for the nitrogen hood features a "T"-shaped groove connected to the slider, allowing the slider to slide only in a specific direction within the groove, preventing vertical separation or lateral displacement. This ensures the accuracy and stability of the mold assembly when adjusting its position in the horizontal direction. This sliding connection method facilitates rapid adjustment of the mold assembly's position according to different processing requirements, improving the mold's flexibility and adaptability, and also contributing to increased production efficiency. Attached Figure Description

[0023] Figure 1 This is a first-view three-dimensional structural diagram of the positioning point pressing mold in this utility model;

[0024] Figure 2 This is a second-view three-dimensional structural diagram of the positioning point pressing mold in this utility model;

[0025] Figure 3 This is a schematic diagram of the mounting structure of the placement seat and the slide groove of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the mold assembly of this utility model;

[0027] Figure 5 This is a first-view disassembled structural diagram of the mold assembly of this utility model;

[0028] Figure 6 This is a first-view disassembled structural diagram of the mold assembly of this utility model.

[0029] The components are as follows: 1. Base; 2. Connecting frame; 3. Slide rail seat; 4. Fixing block; 5. Rotating block; 6. Screw; 7. Moving frame; 8. Cylinder; 9. Pressure shaft; 10. Adjusting nut; 11. Pressure block; 12. Placement seat; 13. Slide groove; 14. Slider; 15. Mold assembly; 1501. Lower beam; 1502. Concave point; 1503. Support point; 1504. Upper beam; 1505. Upper mold; 1506. Protrusion; 1507. Lower mold; 1508. Fixing bolt; 16. Machined part body. Detailed Implementation

[0030] 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.

[0031] Example 1:

[0032] like Figure 1-6 As shown, the positioning point pressing mold for a nitrogen hood provided in this example includes a base 1 and a workpiece body 16. A connecting frame 2 is fixedly installed on the outer surface of the base 1. A slide rail seat 3 is fixedly installed on the other end of the connecting frame 2 away from the base 1. A fixing block 4 is fixedly installed on the other end of the slide rail seat 3 away from the base 1. A screw 6 is rotatably installed on the outer surface of the fixing block 4. A rotating block 5 is fixedly installed on the other end of the screw 6 near the fixing block 4. A movable frame 7 is threadedly connected to the outer surface of the screw 6. A cylinder 8 is fixedly installed on the outer surface of the movable frame 7. A pressure shaft 9 is fixedly installed on the output shaft of the cylinder 8. A pressure placement seat 12 is fixedly installed on the outer surface of the base 1. A slide groove 13 is opened on the outer surface of the placement seat 12. A slider 14 is slidably connected to the inner surface of the slide groove 13. A mold assembly 15 is fixedly installed on the other end of the slider 14 away from the slide groove 13.

[0033] Specifically, the movable frame 7 is adapted to the screw 6, and the movable frame 7 is slidably connected to the slide rail seat 3. In this example, the rotating block 5 drives the screw 6 to rotate. Since the screw 6 is threadedly connected to the movable frame 7, and the movable frame 7 is restricted to sliding in a straight line by the slide rail seat 3, the movable frame 7 will move horizontally along the slide rail seat 3 when the screw 6 rotates. This allows the horizontal position of the movable frame 7 to be adjusted, thereby driving the cylinder 8 and pressure shaft 9 and other components to be accurately positioned in the horizontal direction. This improves the positioning accuracy and efficiency, and is beneficial for subsequent precise positioning point pressing operations on the nitrogen hood machining part body 16.

[0034] Specifically, an adjusting nut 10 is provided on the outer surface of the pressure shaft 9. A pressure block 11 is fixedly installed at the end of the pressure shaft 9 near the adjusting nut 10. The pressure block 11 is located at the end of the mold assembly 15 near the cylinder 8, and both are on the same vertical horizontal line. In this example, the setting of the adjusting nut 10 allows the stroke of the pressure shaft 9 to be flexibly adjusted, which can adapt to nitrogen hood processing parts 16 of different thicknesses or shapes. The pressure block 11 and the mold assembly 15 are located on the same vertical horizontal line, ensuring that the pressure can be applied vertically and evenly to the mold assembly 15, avoiding positioning point pressing quality problems caused by uneven pressure, and improving the accuracy and consistency of product processing.

[0035] Specifically, the mold assembly 15 includes a lower beam 1501, with a recess 1502 on the outer surface of the lower beam 1501. A fulcrum 1503 is fixedly installed at one end of the lower beam 1501, and an upper beam 1504 is rotatably installed at the other end of the fulcrum 1503 away from the lower beam 1501. An upper mold 1505 is fixedly installed on the outer surface of the upper beam 1504, and a protrusion 1506 is fixedly installed at the other end of the upper mold 1505 away from the upper beam 1504. A lower mold 1507 is fixedly installed on the outer surface of the lower beam 1501. In this example, the nitrogen hood workpiece body 16 is placed on the lower mold 1507. The cylinder 8 drives the pressure shaft 9 to move the pressure block 11 downward. The pressure block 11 applies pressure to the fulcrum 1503 at one end of the lower beam 1501, causing the lower beam 1501 to rotate around the fulcrum 1503, thereby driving the lower mold 1507 to move upward. At the same time, the upper beam 1504 rotates in the opposite direction around the fulcrum 1503, causing the upper mold 1505 to move downward. The protrusion 1506 of the upper mold 1505 cooperates with the lower mold 1507 to press the workpiece body 16 at the positioning point.

[0036] Example 2:

[0037] As shown in Figure 2-6, this is an improvement on the previous embodiment.

[0038] In this example, the concave point 1502 is configured to match the convex point 1506, and the workpiece body 16 is located between the upper mold 1505 and the lower mold 1507. This configuration allows for the generation of a large clamping force with a relatively small driving force, enabling the workpiece body 16 to be pressed at its positioning points. The cooperation between the concave point 1502 and the convex point 1506 can form positioning points of specific shapes and depths on the workpiece body 16, meeting different processing requirements. Furthermore, the mold assembly 15 has a relatively compact structure, enabling efficient positioning point pressing operations within a limited space, thus improving the practicality and reliability of the mold.

[0039] In this example, two identical fixing bolts 1508 are fixedly installed on the outer surface of the lower mold 1507, symmetrically distributed about the center line of the two lower molds 1507. This arrangement ensures that when the lower mold 1507 is installed, it is placed on the slider 14. The two symmetrically distributed fixing bolts 1508 and the slider 14 prevent displacement or shaking of the lower mold 1507 during pressing due to uneven force or vibration, thus ensuring the accuracy and stability of the positioning point pressing and improving the reliability and service life of the mold.

[0040] In this example, the slider 14 and the groove 13 are connected by a sliding connection, and the cross-sections of the groove 13 and the slider 14 are in the shape of a "T". This configuration, where the "T"-shaped groove 13 connects to the slider 14, ensures that the slider 14 can only slide in a specific direction within the groove 13, preventing vertical separation or lateral displacement. This guarantees the accuracy and stability of the mold assembly 15 when adjusting its position in the horizontal direction. This sliding connection method facilitates rapid adjustment of the mold assembly 15's position according to different processing requirements, improving the mold's flexibility and adaptability, and also contributing to increased production efficiency.

[0041] See Figures 1 to 6 In practical use, the positioning point pressing mold for the nitrogen hood formed based on the above example scheme rotates the rotating block 5 to drive the screw 6 to rotate. Since the screw 6 is threadedly connected to the moving frame 7, and the moving frame 7 is restricted by the slide rail seat 3 to slide only in a straight line, the moving frame 7 will move horizontally along the slide rail seat 3 when the screw 6 rotates. This can adjust the horizontal position of the moving frame 7, thereby driving the cylinder 8 and pressure shaft 9 and other components to be accurately positioned in the horizontal direction, improving the positioning accuracy and efficiency, and facilitating the subsequent precise positioning point pressing operation on the nitrogen hood processing part body 16.

[0042] Further adjustment of the setting of nut 10 allows the stroke of pressure shaft 9 to be flexibly adjusted, which can adapt to nitrogen hood processing parts 16 of different thicknesses or shapes. The pressure block 11 and mold assembly 15 are located on the same vertical horizontal line, ensuring that the pressure can be applied vertically and evenly to the mold assembly 15, avoiding positioning point pressing quality problems caused by uneven pressure, and improving the accuracy and consistency of product processing.

[0043] The nitrogen hood workpiece body 16 is placed on the lower mold 1507. The cylinder 8 drives the pressure shaft 9 to move the pressure block 11 downward. The pressure block 11 applies pressure to the fulcrum 1503 at one end of the lower beam 1501, causing the lower beam 1501 to rotate around the fulcrum 1503, thereby driving the lower mold 1507 to move upward. At the same time, the upper beam 1504 rotates in the opposite direction around the fulcrum 1503, causing the upper mold 1505 to move downward. The protrusion 1506 of the upper mold 1505 cooperates with the lower mold 1507 to press the workpiece body 16 at the positioning point. A large clamping force can be generated with a small driving force to press the workpiece body 16 at the positioning point.

[0044] The combination of concave point 1502 and convex point 1506 can form positioning points of specific shape and depth on the workpiece body 16 to meet different processing requirements. Furthermore, the mold assembly 15 has a relatively compact structure, which can achieve efficient positioning point pressing operation in a limited space, thereby improving the practicality and reliability of the mold.

[0045] When installing the lower mold 1507, it is placed on the slider 14. Two symmetrically distributed fixing bolts 1508 prevent the lower mold 1507 from shifting or shaking due to uneven force or vibration during the pressing process. This ensures the accuracy and stability of the positioning point pressing, improves the reliability and service life of the mold. The "T"-shaped slide groove 13 is connected to the slider 14, so that the slider 14 can only slide in a specific direction within the slide groove 13, without vertical separation or lateral displacement. This ensures the accuracy and stability of the mold assembly 15 when adjusting its position in the horizontal direction. This sliding connection method facilitates the quick adjustment of the position of the mold assembly 15 according to different processing requirements, improves the flexibility and adaptability of the mold, and also helps to improve production efficiency.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning point pressing mold for a nitrogen hood, comprising a base (1) and a workpiece body (16), characterized in that: A connecting frame (2) is fixedly installed on the outer surface of the base (1). A slide rail seat (3) is fixedly installed at the other end of the connecting frame (2) away from the base (1). A fixing block (4) is fixedly installed at the other end of the slide rail seat (3) away from the base (1). A screw (6) is rotatably installed on the outer surface of the fixing block (4). A rotating block (5) is fixedly installed at the other end of the screw (6) near the fixing block (4). A moving frame (7) is threadedly connected to the outer surface of the screw (6). A cylinder (8) is fixedly installed on the outer surface of the moving frame (7). A pressure shaft (9) is fixedly installed on the output shaft of the cylinder (8). A pressure placement seat (12) is fixedly installed on the outer surface of the base (1). A slide groove (13) is opened on the outer surface of the placement seat (12). A slider (14) is slidably connected to the inner surface of the slide groove (13). A mold assembly (15) is fixedly installed at the other end of the slider (14) away from the slide groove (13).

2. The positioning point pressing mold for a nitrogen hood according to claim 1, characterized in that: The movable frame (7) is adapted to the screw (6), and the movable frame (7) is slidably connected to the slide rail seat (3).

3. The positioning point pressing mold for a nitrogen hood according to claim 1, characterized in that: An adjusting nut (10) is provided on the outer surface of the pressure shaft (9). A pressure block (11) is fixedly installed on one end of the pressure shaft (9) near the adjusting nut (10). The pressure block (11) is located at one end of the mold assembly (15) near the cylinder (8) and the two are located on the same vertical horizontal line.

4. A positioning point pressing mold for a nitrogen hood according to claim 1, characterized in that: The mold assembly (15) includes a lower beam (1501), the outer surface of which has a recess (1502), a fulcrum (1503) fixedly installed at one end of the lower beam (1501), an upper beam (1504) rotatably installed at the other end of the fulcrum (1503) away from the lower beam (1501), an upper mold (1505) fixedly installed on the outer surface of the upper beam (1504), a protrusion (1506) fixedly installed at the other end of the upper mold (1505) away from the upper beam (1504), and a lower mold (1507) fixedly installed on the outer surface of the lower beam (1501).

5. A positioning point pressing mold for a nitrogen hood according to claim 4, characterized in that: The concave point (1502) is adapted to the convex point (1506), and the workpiece body (16) is located between the upper mold (1505) and the lower mold (1507).

6. A positioning point pressing mold for a nitrogen hood according to claim 5, characterized in that: The outer surface of the lower mold (1507) is fixedly installed with fixing bolts (1508), and two identical fixing bolts (1508) are provided. The two fixing bolts (1508) fixedly installed on the outer surface of the lower mold (1507) are symmetrically distributed about the center line of the lower mold (1507).

7. A positioning point pressing mold for a nitrogen hood according to claim 1, characterized in that: The slider (14) and the groove (13) are slidably connected, and the cross-sections of the groove (13) and the slider (14) are T-shaped.