Water-free cold heading device for high-strength nut

By designing a flexible mold structure, the problem of existing devices being unable to adapt to different types of nuts and bolts was solved, enabling efficient processing of diverse nuts and screws and improving the applicability and precision of the device.

CN223989021UActive Publication Date: 2026-03-13SUZHOU DAZHOU PRECISION MECHANISM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing high-strength nut cold heading equipment has a fixed structure between the mold and the equipment, which cannot adapt to the processing of different types and models of nuts and bolts, and cannot process other shaped parts, thus reducing the applicability of the equipment.

Method used

A waterless cold heading device was designed, comprising a base plate, support columns, mounting plate, and mold. Through the combination of automatic telescopic rods and limit rods, the mold can be flexibly installed and stabilized, and can process nuts and screws of various types to meet different production needs.

Benefits of technology

It enables efficient and flexible processing of various types of nuts and screws, improving the application range and processing accuracy of the device and meeting diverse production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of high-strength nuts, and discloses a water-free cold heading device for high-strength nuts, which comprises a bottom plate, support columns and a first mounting plate, the two support columns are mounted on two sides above the bottom plate, the first mounting plate is mounted above the support columns, a mounting structure is arranged above the first mounting plate, and the mounting structure is mounted on the bottom plate. The mounting structure comprises automatic telescopic rods, a second mounting plate and limiting rods, the multiple automatic telescopic rods are mounted in the supporting column and the first mounting plate, the output ends of the automatic telescopic rods are connected with the second mounting plate, and the two limiting rods are mounted on the two sides of the upper portion of the first mounting plate; the limiting rods penetrate through the fixing grooves and are connected with the square frame. The device can efficiently and flexibly machine nuts and screws of various models and types, different production requirements are met, and the use range of the device is widened.
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Description

Technical Field

[0001] This utility model relates to the field of high-strength nut technology, specifically to a waterless cold heading device for high-strength nuts. Background Technology

[0002] Cold heading is a relatively new non-cutting metal forming process. It utilizes the plastic deformation of metal under external force, and with the aid of a die, redistributes and transfers the metal volume to form the desired part or blank. Cold heading is best suited for producing standard fasteners such as bolts, screws, nuts, rivets, and pins. The commonly used equipment for cold heading is a dedicated cold heading machine. For smaller production volumes, a crank press or friction press can be used instead.

[0003] Existing waterless cold heading devices for high-strength nuts typically have a fixed structure between the mold and the device, which makes it inconvenient to process different types and models of nuts and bolts, and cannot process other shaped parts, thus reducing the applicability of the device. In order to address the above issues, we propose a waterless cold heading device for high-strength nuts. Utility Model Content

[0004] The purpose of this invention is to provide a waterless cold forging device for high-strength nuts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterless cold heading device for high-strength nuts, comprising a base plate, support columns and a first mounting plate, wherein two support columns are installed on both sides above the base plate, and a first mounting plate is installed above the support columns, and an mounting structure is provided above the first mounting plate;

[0006] The installation structure includes an automatic telescopic rod, a second mounting plate, and limiting rods. Multiple automatic telescopic rods are installed inside the support column and the first mounting plate. The output end of each automatic telescopic rod is connected to the second mounting plate. Two limiting rods are installed on both sides of the upper part of the first mounting plate. The limiting rods pass through fixing slots and connect to the square frame. Multiple mounting slots are provided inside both the second and first mounting plates. Two threaded slots are provided on both sides of each mounting slot. A third mounting plate is installed inside the upper mounting slot, and a screw mounting plate is installed inside the lower mounting slot. Grooves are provided on both sides of the upper part of the screw mounting plate, and bolts are installed inside these grooves. The bolts pass through the grooves and connect to the threaded slots. Screw-type upper molds are installed below the two upper left third mounting plates, and nut-type upper molds are installed below the two upper right third mounting plates. Multiple screw-type lower molds are installed inside the two lower left screw mounting plates, and multiple nut-type lower molds are installed inside the two lower right screw mounting plates.

[0007] Preferably, the base plate and the support column are fixedly connected, and the support column and the first mounting plate are integrally formed.

[0008] Preferably, the first mounting plate and the automatic telescopic rod are fixedly connected, and the second mounting plate and the fixing groove are integrated.

[0009] Preferably, the limiting rods are all perpendicular to each other between the square frame and the first mounting plate.

[0010] Preferably, the limiting rod and the fixing groove are slidably connected.

[0011] Preferably, the mounting slots are all correspondingly provided between the mounting plate and the screw mounting plate of the third mounting plate.

[0012] Preferably, the groove and the bolt are connected by a thread.

[0013] Preferably, the upper mold and the lower mold of the nut are correspondingly arranged.

[0014] Preferably, the second mounting plate is arranged parallel to the first mounting plate and the square frame.

[0015] Preferably, the upper screw mold and the lower screw mold are provided in a corresponding manner.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] By setting up an automatic telescopic rod, a second mounting plate, and a limiting rod, the user moves the device to a fixed position and fixes it to the ground via a base plate. Before use, the user selects the corresponding upper and lower molds according to the different needs of the customer. The third mounting plate connected to the upper mold is placed inside the upper mounting groove. Nuts and screws are installed in the upper mold. The screw mounting plate connected to the upper mold is placed inside the lower mounting groove. Bolts are then used to thread the grooves and threads together. Different types of screw and nut lower molds are installed inside the different screw mounting plates, so that the device can efficiently and flexibly process various types of nuts and screws to meet different production needs and improve the application range of the device. Next, the material is placed between the molds, and the metal undergoes plastic deformation under external force to form the required shape of the nut and screw lower molds. Then, the automatic telescopic rod is activated to drive the second mounting plate to slide upward. The second mounting plate drives the fixing groove to slide outside the limiting rod, limiting the extension range of the automatic telescopic rod and ensuring the stability and accuracy of the mold. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a front sectional view of the partial installation structure of this utility model;

[0021] Figure 3 This is a top view of the first mounting plate of this utility model.

[0022] Figure 4 This is a partial top view of the installation structure of this utility model;

[0023] Figure 5 This is a partial front sectional view of the installation structure used in this utility model.

[0024] In the diagram: 1. Base plate; 2. Support column; 3. First mounting plate; 4. Mounting structure; 401. Automatic telescopic rod; 402. Second mounting plate; 403. Limiting rod; 404. Fixing groove; 405. Square frame; 406. Mounting groove; 407. Third mounting plate; 408. Screw mounting plate; 409. Groove; 410. Bolt; 411. Upper mold for nuts; 412. Lower mold for nuts; 413. Upper mold for screws; 414. Lower mold for screws; 415. Thread groove. Detailed Implementation

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1-5 This utility model provides a waterless cold heading device for high-strength nuts: a waterless cold heading device for high-strength nuts includes a base plate 1, support columns 2 and a first mounting plate 3. Two support columns 2 are installed on both sides above the base plate 1, and a first mounting plate 3 is installed above the support columns 2. An mounting structure 4 is provided above the first mounting plate 3.

[0029] The mounting structure 4 includes an automatic telescopic rod 401, a second mounting plate 402, and a limiting rod 403. Multiple automatic telescopic rods 401 are installed inside the support column 2 and the first mounting plate 3. The output end of the automatic telescopic rod 401 is connected to the second mounting plate 402. Two limiting rods 403 are installed on both sides of the upper part of the first mounting plate 3. The limiting rods 403 pass through the fixing groove 404 and are connected to the square frame 405. Multiple mounting grooves 406 are provided inside both the second mounting plate 402 and the first mounting plate 3. Two threaded grooves 415 are provided on both sides of each mounting groove 406. A third mounting plate 403 is installed inside the upper mounting groove 406. 07. The screw mounting plate 408 is installed inside the lower mounting groove 406. The upper sides of the screw mounting plate 408 are provided with grooves 409. Bolts 410 are installed inside the grooves 409. The bolts 410 pass through the grooves 409 and are connected to the threaded grooves 415. Screw upper molds 413 are installed below the two upper left third mounting plates 407. Nut upper molds 411 are installed below the two upper right third mounting plates 407. Multiple screw lower molds 414 are installed inside the two lower left screw mounting plates 408. Multiple nut lower molds 412 are installed inside the two lower right screw mounting plates 408.

[0030] The user key device is moved to the fixed position and fixed to the ground by the base plate 1. Before use, the user uses the corresponding upper and lower molds according to the different needs of the customer. The third mounting plate 407 connected to the upper mold is placed inside the upper mounting groove 406, and nuts and screws are installed. The screw mounting plate 408 connected to the upper mold is placed inside the lower mounting groove 406. Then, bolts 410 are used to pass through the groove 409 and the threaded groove 415 for threaded connection. Different screw mounting plates 408 have different types of screw lower molds 414 and nut lower molds 414 installed inside. 12. This allows the device to efficiently and flexibly process various types of nuts and screws to meet different production needs and expand the device's application range. Secondly, the material is placed between the molds, and the metal undergoes plastic deformation under external force to form the required shapes of the nut-type lower mold 412 and the screw-type lower mold 414. Then, the automatic telescopic rod 401 is activated to drive the second mounting plate 402 to slide upward. The second mounting plate 402 drives the fixing groove 404 to slide outside the limit rod 403, limiting the extension range of the automatic telescopic rod 401 and ensuring the stability and accuracy of the mold.

[0031] The base plate 1 and the support column 2 are fixedly connected, and the support column 2 and the first mounting plate 3 are integrated.

[0032] The first mounting plate 3 is fixedly connected to the automatic telescopic rod 401, while the second mounting plate 402 and the fixing groove 404 are integrated.

[0033] The limiting rods 403 are all perpendicular to each other between the square frame 405 and the first mounting plate 3.

[0034] The limiting rod 403 and the fixing groove 404 are slidably connected.

[0035] The mounting slots 406 are all correspondingly set between the third mounting plate 407 and the screw mounting plate 408.

[0036] The groove 409 and the bolt 410 are connected by threads.

[0037] The upper mold 411 and the lower mold 412 for nuts are set up in a corresponding manner.

[0038] The second mounting plate 402 is set parallel to the first mounting plate 3 and the square frame 405.

[0039] The upper mold 413 and the lower mold 414 for screws are set up in a corresponding manner.

[0040] Although embodiments of the present utility 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 utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-water cooling upsetting device for high-strength nuts, comprising a base plate (1), a supporting column (2) and a first mounting plate (3), characterized in that: Two support columns (2) are installed on both sides of the bottom plate (1), and a first mounting plate (3) is installed above the support columns (2), and an installation structure (4) is arranged above the first mounting plate (3). The installation structure (4) comprises automatic telescopic rods (401), a second mounting plate (402) and limiting rods (403), a plurality of automatic telescopic rods (401) are installed in the inside of the support column (2) and the inside of the first mounting plate (3), the output end of the automatic telescopic rod (401) is connected with the second mounting plate (402), two limiting rods (403) are installed on both sides of the top of the first mounting plate (3), the limiting rod (403) penetrates through a fixed groove (404) and is connected with a square frame (405), a plurality of mounting grooves (406) are arranged in the inside of the second mounting plate (402) and the inside of the first mounting plate (3), two threaded grooves (415) are arranged on both sides of the mounting groove (406), a third mounting plate (407) is installed in the inside of the mounting groove (406) on the top, a screw mounting plate (408) is installed in the inside of the mounting groove (406) on the bottom, recesses (409) are arranged on both sides of the top of the screw mounting plate (408), bolts (410) are installed in the inside of the recess (409), the bolt (410) penetrates through the recess (409) and is connected with the threaded groove (415), screw type upper molds (413) are installed below the two third mounting plates (407) on the top left side, nut type upper molds (411) are installed below the two third mounting plates (407) on the top right side, a plurality of screw type lower molds (414) are installed in the inside of the two screw mounting plates (408) on the bottom left side, and a plurality of nut type lower molds (412) are installed in the inside of the two screw mounting plates (408) on the bottom right side.

2. A high strength nut dry cold-upsetting apparatus as claimed in claim 1, wherein: The bottom plate (1) and the support column (2) are fixedly connected, and the support column (2) and the first mounting plate (3) are integrally arranged.

3. A high strength nut dry cold-upsetting apparatus as claimed in claim 2, wherein: The first mounting plate (3) and the automatic telescopic rod (401) are fixedly connected, and the second mounting plate (402) and the fixed groove (404) are integrally arranged.

4. A high strength nut dry cold-upsetting apparatus as claimed in claim 3, wherein: The limiting rod (403) is arranged to be perpendicular to the square frame (405) and the first mounting plate (3).

5. A high strength nut dry cold-upsetting apparatus as claimed in claim 4, wherein: The limiting rod (403) and the fixed groove (404) are in sliding connection.

6. A high strength nut dry cold-upsetting apparatus as claimed in claim 5, wherein: The mounting groove (406) is arranged to correspond to the third mounting plate (407) and the screw mounting plate (408).

7. A high strength nut dry cold-upsetting apparatus as claimed in claim 6, wherein: The recess (409) and the bolt (410) are in threaded connection.

8. A high strength nut dry cold-upsetting apparatus as claimed in claim 7, wherein: The nut type upper mold (411) and the nut type lower mold (412) are arranged to correspond to each other.

9. A high strength nut dry cold-upsetting apparatus as claimed in claim 8, wherein: The second mounting plate (402) is arranged to be parallel to the first mounting plate (3) and the square frame (405).

10. A high strength nut dry cold-upsetting apparatus as claimed in claim 9, wherein: The screw type upper mold (413) and the screw type lower mold (414) are arranged to correspond to each other.