A waterless cold forging device for high-strength nuts

Abstract

This utility model discloses a waterless cold heading device for high-strength nuts, comprising a worktable, a spring fixedly connected to the lower bottom wall of the worktable, a mounting plate fixedly connected to the end of the spring away from the worktable, a lower mold threadedly connected to the upper surface of the mounting plate, a top block fixedly connected to the lower surface of the worktable via a second spring, a top rod fixedly connected to the upper surface of the top block, a top plate fixedly connected to the upper surface of the worktable via a support column, a hydraulic cylinder fixedly connected to the upper surface of the top plate, a pressure plate fixedly connected to the output end of the hydraulic cylinder, and an upper mold threadedly connected to the lower surface of the pressure plate. Through these components, the replaceable upper and lower molds are provided, increasing the versatility of the processed products. Furthermore, the spring at the bottom of the mounting plate provides a cushioning effect, extending the service life of both the upper and lower molds.

Description

Technical Field

[0001] This utility model relates to the field of waterless cold heading technology, and in particular to a waterless cold heading method for high-strength nuts. Background Technology

[0002] Existing waterless cold heading devices for high-strength nuts all feature detachable mold assemblies on the worktable. By replacing the mold assemblies, the device can continue processing parts with different gas profiles. However, there are no buffer components between the molds. For example, a waterless cold heading device for high-strength nuts disclosed in Chinese patent application number CN202221583659.0, while offering advantages such as easy mold replacement for other shaped parts and cost savings by incorporating mold assemblies, and solving the problem that existing waterless cold heading devices for high-strength nuts typically have a fixed, integrated connection between the mold and the device, limiting their ability to process only nuts and other shaped parts, lacks a buffer component between the mold assembly and the hexagonal rod. This causes the rectangular plate to directly collide with the nut mold during processing, damaging the threaded mold, reducing its lifespan, and limiting its application. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art and to provide a waterless cold forging device for high-strength nuts.

[0004] This utility model also provides a waterless cold heading device with the above-mentioned high-strength nut, comprising: a workbench, a spring 1 fixedly connected to the lower bottom wall of the workbench, a mounting plate fixedly connected to the end of the spring 1 away from the workbench, a lower mold threadedly connected to the upper surface of the mounting plate, a top block fixedly connected to the lower surface of the workbench via a spring 2, and a top rod fixedly connected to the upper surface of the top block.

[0005] A top plate is fixedly connected to the upper surface of the workbench via a support column. A hydraulic cylinder is fixedly connected to the upper surface of the top plate. A pressure plate is fixedly connected to the output end of the hydraulic cylinder. An upper mold is threadedly connected to the lower surface of the pressure plate. These components allow for the installation of replaceable upper and lower molds, increasing the versatility of the processed products. Furthermore, a spring is installed at the bottom of the mounting plate to provide a cushioning effect, thus extending the service life of both the upper and lower molds.

[0006] According to the present invention, a waterless cold heading device for high-strength nuts is provided, wherein a slider is fixedly connected to the side surface of the mounting plate, and the side surface of the slider is slidably connected to the worktable. This enhances the stability of the mounting plate after movement and limits the range of movement of the mounting plate.

[0007] According to the waterless cold heading device for high-strength nuts described in this utility model, a positioning ring is fixedly connected to the inner side wall of the worktable, and the upper surface of the positioning ring is in contact with the mounting plate after the mounting plate slides. The positioning ring is used to limit the lowest position of the mounting plate after it moves downward.

[0008] According to the present invention, a waterless cold forging device for high-strength nuts is provided, wherein a support leg is fixedly connected to the lower surface of the worktable, and a foot pad is fixedly connected to the lower surface of the support leg. The support leg supports the device, and the foot pad enhances the cushioning of the device.

[0009] According to the present invention, a waterless cold heading device for high-strength nuts is provided, wherein the side surface of the mounting plate is slidably connected to the worktable, and the side surface of the lower mold is slidably connected to the worktable. This allows the mounting plate and the lower mold to move downwards and compress a spring.

[0010] According to the present invention, a waterless cold heading device for high-strength nuts is provided, wherein the side surface of the ejector rod is slidably connected to the worktable, and the side surface of the ejector rod is slidably connected to the lower mold. The ejector rod can be used to eject the formed nut.

[0011] According to the present invention, a waterless cold forging device for high-strength nuts is provided, wherein a limiting rod is fixedly connected to the upper surface of the worktable, and the end of the limiting rod away from the worktable is fixedly connected to the top plate. The limiting rod enables the pressure plate to move stably.

[0012] According to the present invention, a waterless cold forging device for high-strength nuts is provided, wherein the side surface of the limiting rod is slidably connected to the pressure plate, and the upper mold is located above the lower mold. This allows the pressure plate to press down, causing the upper and lower molds to come into contact and press the nut into shape. Beneficial effects

[0013] This technical solution provides a waterless cold heading device for high-strength nuts. By installing detachable lower and upper molds on the mounting plate and pressure plate, it solves the problem that existing waterless cold heading devices for high-strength nuts typically have a fixed, integrated connection between the mold and the device, which can only process the same type of nut. Furthermore, the bottom of the mounting plate is equipped with a spring 1, which provides a buffering effect when the upper mold presses against the lower mold, improving the service life of the upper and lower molds. During processing, spring 2 is compressed, allowing it to accumulate elastic force to drive the ejector rod to push the nut out after the upper and lower molds separate, thus achieving nut demolding. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of the waterless cold heading device for high-strength nuts according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the waterless cold heading device for the high-strength nut of this utility model;

[0017] Figure 3 This invention relates to a waterless cold forging device for high-strength nuts. Figure 2 Partial structural diagram at point A in the middle;

[0018] Figure 4 This is a structural diagram of the lower mold and mounting plate of the waterless cold heading device for high-strength nuts of this utility model.

[0019] Legend:

[0020] 1. Workbench; 2. Support legs; 3. Foot pads; 4. Lower mold; 5. Upper mold; 6. Pressure plate; 7. Support column; 8. Top plate; 9. Hydraulic cylinder; 10. Limit rod; 11. Top block; 12. Spring 1; 13. Mounting plate; 14. Positioning ring; 15. Top rod; 16. Spring 2; 17. Slider. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 The present invention relates to a waterless cold forging device for high-strength nuts, comprising: a workbench 1, a spring 12 fixedly connected to the lower bottom wall of the workbench 1, a mounting plate 13 fixedly connected to the end of the spring 12 away from the workbench 1, a side surface of the mounting plate 13 slidably connected to the workbench 1, a lower mold 4 threadedly connected to the upper surface of the mounting plate 13, a side surface of the lower mold 4 slidably connected to the workbench 1, a top block 11 fixedly connected to the lower surface of the workbench 1 via a spring 2 16, a top rod 15 fixedly connected to the upper surface of the top block 11, a side surface of the top rod 15 slidably connected to the workbench 1, and a side surface of the top rod 15 slidably connected to the lower mold 4.

[0023] Specifically, the mounting plate 13 is mounted on the worktable 1 by spring 12, and then the corresponding lower mold 4 is mounted on the mounting plate 13. Before the device operates, the nut to be processed is inserted into the lower mold 4 and the push rod 15 is pressed. When the pressure plate 6 moves the upper mold 5, the upper mold 5 will be in contact with the lower mold 4 and press the lower mold 4 to move downward. At this time, the lower mold 4 and the mounting plate 13 will compress the spring 12 together until the bottom of the mounting plate 13 is in contact with the positioning ring 14. At the same time, the push rod 15 will also press the top block 11 and stretch the spring 16. The spring 12 provides a buffering effect to protect the upper mold 5 and the lower mold 4. When the upper mold 5 is reset, the spring 12 will drive the mounting plate 13 to reset. At the same time, the spring 16 will also drive the push rod 15 and the top block 11 to reset, and the push rod 15 will push out the processed nut.

[0024] The upper surface of the workbench 1 is fixedly connected to a top plate 8 via a support column 7. A hydraulic cylinder 9 is fixedly connected to the upper surface of the top plate 8. A pressure plate 6 is fixedly connected to the output end of the hydraulic cylinder 9. An upper mold 5 is threadedly connected to the lower surface of the pressure plate 6. The upper mold 5 is located above the lower mold 4.

[0025] Specifically, a top plate 8 is fixed to the workbench 1 by a support column 7. During processing, the hydraulic cylinder 9 on the top plate 8 can drive the pressure plate 6, so that the upper mold 5 on the pressure plate 6 can be processed into the nut together with the lower mold 4. During processing, the pressure plate 6 will drive the upper mold 5 to move downward and insert the upper mold 5 into the lower mold 4 to process the nut until the lower mold 4 is inserted into the workbench 1. At the same time, the pressure plate 6 is in contact with the surface of the workbench 1. Meanwhile, the lower mold 4 and the upper mold 5 are respectively installed on the mounting plate 13 and the pressure plate 6 by threaded connection, which allows for quick replacement of the upper mold 5 and the lower mold 4.

[0026] A slider 17 is fixedly connected to the side surface of the mounting plate 13. The side surface of the slider 17 is slidably connected to the worktable 1. A positioning ring 14 is fixedly connected to the inner side wall of the worktable 1. The upper surface of the positioning ring 14 is in contact with the mounting plate 13 after the mounting plate 13 slides. A support leg 2 is fixedly connected to the lower surface of the worktable 1. A foot pad 3 is fixedly connected to the lower surface of the support leg 2. A limit rod 10 is fixedly connected to the upper surface of the worktable 1. The side surface of the limit rod 10 is slidably connected to the pressure plate 6. The end of the limit rod 10 away from the worktable 1 is fixedly connected to the top plate 8.

[0027] Specifically, the mounting plate 13 is equipped with a slider 17, which limits the movement trajectory of the mounting plate 13, allowing it to move only in the vertical direction. The slider 17 is restricted by the worktable 1, and together with the positioning ring 14 inside the worktable 1, the range of movement of the mounting plate 13 is limited. The bottom of the support leg 2 under the worktable 1 is equipped with a foot pad 3, which is made of rubber material and provides a cushioning effect. This reduces the vibration generated during processing and protects the ground and support leg 2. At the same time, the worktable 1 is also equipped with a limit rod 10, which allows the pressure plate 6 to slide along the limit rod 10 to maintain stability when moving.

[0028] Working principle: Before use, install the corresponding lower mold 4 and upper mold 5 on the mounting plate 13 and pressure plate 6 respectively. Then, insert the nut to be processed into the lower mold 4. Then, the pressure plate 6 drives the upper mold 5 to move downward and insert the upper mold 5 into the lower mold 4 to process the nut until the lower mold 4 is inserted into the worktable 1. At the same time, the pressure plate 6 is in contact with the surface of the worktable 1. At this time, the lower mold 4 and the mounting plate 13 will compress the spring 12 together until the bottom of the mounting plate 13 is in contact with the positioning ring 14. At the same time, the ejector rod 15 will also press the ejector block 11 and stretch the spring 16. The spring 12 provides a buffering effect to protect the upper mold 5 and the lower mold 4. When the upper mold 5 is reset, the spring 12 will drive the mounting plate 13 to reset. At the same time, the spring 16 will also drive the ejector rod 15 and the ejector block 11 to reset, and the ejector rod 15 will push out the processed nut.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-strength nut non-water quenching device, characterized by, include: A workbench (1) is fixedly connected to a spring (12) on its lower bottom wall. A mounting plate (13) is fixedly connected to the end of the spring (12) away from the workbench (1). A lower mold (4) is threadedly connected to the upper surface of the mounting plate (13). A top block (11) is fixedly connected to the lower surface of the workbench (1) via a spring (16). A top rod (15) is fixedly connected to the upper surface of the top block (11). The upper surface of the workbench (1) is fixedly connected to a top plate (8) via a support column (7). A hydraulic cylinder (9) is fixedly connected to the upper surface of the top plate (8). A pressure plate (6) is fixedly connected to the output end of the hydraulic cylinder (9). An upper mold (5) is threadedly connected to the lower surface of the pressure plate (6).

2. A high strength nut dry cold-upsetting apparatus as claimed in claim 1, wherein, A slider (17) is fixedly connected to the side surface of the mounting plate (13), and the side surface of the slider (17) is slidably connected to the worktable (1).

3. A high strength nut dry cold-upsetting apparatus as claimed in claim 1, wherein, A positioning ring (14) is fixedly connected to the inner side wall of the workbench (1), and the upper surface of the positioning ring (14) is attached to the mounting plate (13) after sliding on the mounting plate (13).

4. A high strength nut dry cold-upsetting apparatus as claimed in claim 1, wherein, The lower surface of the workbench (1) is fixedly connected to a support leg (2), and the lower surface of the support leg (2) is fixedly connected to a foot pad (3).

5. The waterless cold heading device for a high-strength nut according to claim 1, characterized in that, The side surface of the mounting plate (13) is slidably connected to the worktable (1), and the side surface of the lower mold (4) is slidably connected to the worktable (1).

6. The waterless cold forging device for a high-strength nut according to claim 1, characterized in that, The side surface of the push rod (15) is slidably connected to the worktable (1), and the side surface of the push rod (15) is slidably connected to the lower mold (4).

7. The waterless cold heading device for a high-strength nut according to claim 1, characterized in that, A limiting rod (10) is fixedly connected to the upper surface of the workbench (1), and the end of the limiting rod (10) away from the workbench (1) is fixedly connected to the top plate (8).

8. The waterless cold heading device for a high-strength nut according to claim 7, characterized in that, The side surface of the limiting rod (10) is slidably connected to the pressure plate (6), and the upper mold (5) is located above the lower mold (4).

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