High-strength rivet nut heat treatment device

By introducing a combined structure of a loading plate and a loading frame into the heat treatment device, along with a drive motor and an electric pusher cylinder, automated feeding and unloading are achieved, solving the problem of low heat treatment efficiency in existing devices, improving processing efficiency and enhancing safety.

CN224091934UActive Publication Date: 2026-04-07SHENZHEN ZHENGZILIANG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing heat treatment equipment is difficult to continuously feed, resulting in long intervals between heat treatment processes of adjacent batches of nuts, which reduces the efficiency of nut heat treatment.

Method used

A heat treatment device for high-strength rivet nuts was designed. It adopts a combination structure of a carrying plate and a carrying frame, and realizes automatic feeding by combining a drive motor and a lead screw. Automatic loading and unloading are realized by an electric push cylinder and a connecting plate, thus optimizing the heat treatment process.

Benefits of technology

It achieves automated feeding and unloading, shortens the heating interval between adjacent batches of nuts, improves heat treatment efficiency, and prevents the risk of burns caused by excessively high nut temperatures after heat treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-strength rivet nut heat treatment device which comprises a base, an installation plate is installed at the top end of the base, guide rails are symmetrically installed at the top end of the installation plate, heating furnaces are vertically installed on the base and located on the two sides of the guide rails, and furnace doors are connected to the two sides of the heating furnaces in a sliding mode. Two sliding plates are slidably connected to the top ends of the guide rails, a carrying frame is fixedly mounted at the top ends of the sliding plates, and a carrying plate is hinged to the bottom end of the carrying frame. Through the arrangement of the loading plate and the loading frame, under the cooperation of the driving motor and the lead screw, automatic feeding can be achieved, manual carrying is not needed, operation is easy, and the safety performance is improved; and meanwhile, due to the fact that the two carrying frames are arranged, alternate feeding and discharging are conveniently achieved, the heating interval duration of every two adjacent batches of nuts is greatly shortened, and the heat treatment machining efficiency of the nuts is effectively improved.
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Description

Technical Field

[0001] This utility model belongs to the field of rivet nut processing technology, and more specifically, it relates to a heat treatment device for high-strength rivet nuts. Background Technology

[0002] Rivet nuts are suitable for unidirectional connections of thin plates and profiles. They are simple to manufacture, low in cost, and widely used in the assembly of products in industries such as automotive, aerospace, instrumentation, and home decoration. However, in recent years, the market demand for high-strength rivet nuts has been increasing, which poses new challenges to product structural design and heat treatment methods.

[0003] Existing heat treatment equipment is difficult to use for continuous feeding, resulting in long intervals between heat treatment processes of adjacent batches of nuts, thus reducing the efficiency of nut heat treatment. Therefore, in view of this, this paper studies and improves the existing structure and its shortcomings to provide a high-strength rivet nut heat treatment device, aiming to achieve a more practical purpose. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a heat treatment device for high-strength rivet nuts, which is achieved by the following specific technical means:

[0005] A heat treatment device for high-strength rivet nuts includes a base, a mounting plate mounted on the top of the base, guide rails symmetrically mounted on the top of the mounting plate, a heating furnace vertically mounted on both sides of the base on the guide rails, and furnace doors slidably connected to both sides of the heating furnace; two sets of sliding plates slidably connected to the top of the guide rails, a carrying frame fixedly mounted on the top of the sliding plates, a carrying plate hinged to the bottom of the carrying frame, side plates provided on both sides of the carrying plate, and movable grooves opened on both sides of the carrying frame, with the side plates slidably connected inside the movable grooves.

[0006] As a preferred embodiment of this utility model, two sets of rotating seats are fixedly installed on the top of the mounting plate. A lead screw is installed inside the two sets of rotating seats. Two sets of ball nuts are installed on the outside of the lead screw. A slider is installed on the outside of each set of ball nuts. The sliders are fixedly connected to the bottom of the sliding plate. A drive motor is fixedly installed on one side of the mounting plate. The output end of the drive motor is connected to the lead screw drive.

[0007] As a preferred technical solution of this utility model, the two sides of the carrying frame are symmetrically provided with arc-shaped grooves, and guide rods are slidably connected inside the arc-shaped grooves. One end of each set of guide rods is fixedly connected to the side plate. Two sets of electric push cylinders are vertically installed at the top of the sliding plate. A connecting plate is fixedly installed at the output end of each electric push cylinder. One side of each set of connecting plates is provided with a waist-shaped groove, and the other end of each guide rod passes through the corresponding waist-shaped groove.

[0008] As a preferred embodiment of this utility model, a limiting ring is fixedly installed on the outer side of each guide rod, and one side of each limiting ring is in contact with the connecting plate.

[0009] As a preferred embodiment of this utility model, electric push cylinders are vertically installed on both sides of the heating furnace, and top plates are fixedly installed on the top of the two sets of furnace doors. The output ends of the electric push cylinders are all fixedly connected to the top plates.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention, by setting up a loading plate and a loading frame, can achieve automatic feeding with the cooperation of a drive motor and a lead screw, eliminating the need for manual handling, simplifying operation, and improving safety. Simultaneously, since there are two sets of loading frames, alternating loading and unloading is facilitated, greatly reducing the heating interval between adjacent batches of nuts and effectively improving the efficiency of nut heat treatment. The inclusion of an electric pusher cylinder and a connecting plate facilitates automatic unloading of heat-treated nuts, preventing excessively high temperatures after heat treatment from causing burns to workers. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 .

[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 .

[0014] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0015] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0017] 1. Base; 2. Mounting plate; 3. Guide rail; 4. Heating furnace; 5. Furnace door; 6. Sliding plate; 7. Loading frame; 8. Loading plate; 9. Side plate; 10. Rotating seat; 11. Lead screw; 12. Slider; 13. Drive motor; 14. Guide rod; 15. Electric push cylinder one; 16. Connecting plate; 17. Limit ring; 18. Electric push cylinder two; 19. Top plate. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example:

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides a heat treatment device for high-strength rivet nuts, including a base 1, an mounting plate 2 installed on the top of the base 1, guide rails 3 symmetrically installed on the top of the mounting plate 2, a heating furnace 4 vertically installed on both sides of the base 1 and the heating furnace 4 slidably connected to both sides of the heating furnace 4; two sets of sliding plates 6 slidably connected to the top of the guide rails 3, a carrying frame 7 fixedly installed on the top of the sliding plate 6, a carrying plate 8 hinged to the bottom of the carrying frame 7, side plates 9 provided on both sides of the carrying plate 8, movable grooves opened on both sides of the carrying frame 7, and the side plates 9 slidably connected inside the movable grooves.

[0024] The mounting plate 2 has two sets of rotating seats 10 fixedly installed at its top. A lead screw 11 is installed inside each of the two sets of rotating seats 10. Two sets of ball nuts are installed on the outside of each lead screw 11. A slider 12 is installed on the outside of each of the two sets of ball nuts, and the sliders 12 are fixedly connected to the bottom of the sliding plate 6. A drive motor 13 is fixedly installed on one side of the mounting plate 2. The output end of the drive motor 13 is connected to the lead screw 11 for transmission, facilitating the provision of power for the operation of the equipment. This significantly reduces the heating interval between adjacent batches of nuts, effectively improving the efficiency of nut heat treatment.

[0025] The loading frame 7 has symmetrical arc-shaped grooves on both sides, and guide rods 14 are slidably connected inside each arc-shaped groove. One end of each set of guide rods 14 is fixedly connected to the side plate 9. Two sets of electric push cylinders 15 are vertically installed at the top of the sliding plate 6. A connecting plate 16 is fixedly installed at the output end of each electric push cylinder 15. One side of each set of connecting plates 16 has a waist-shaped groove, and the other end of each guide rod 14 passes through the corresponding waist-shaped groove. This facilitates the unfolding of the loading plate 8 according to usage needs, making it easier to collect the heat-treated nuts and preventing overheating that could cause burns to workers.

[0026] Each guide rod 14 is fixedly fitted with a limiting ring 17 on its outer side, and one side of each limiting ring 17 is in contact with the connecting plate 16, which facilitates the restriction of the movement of the guide rod 14 and prevents it from deviating.

[0027] The heating furnace 4 is vertically equipped with electric push cylinders 18 on both sides, and top plates 19 are fixedly installed on the top of the two sets of furnace doors 5. The output ends of the electric push cylinders 18 are fixedly connected to the top plates 19, which facilitates the up and down movement of the furnace doors 5, thereby realizing automatic opening and closing.

[0028] The working principle of this embodiment:

[0029] When using the heat treatment device, the nut is first placed in the storage space formed by the loading frame 7 and the loading plate 8. Then, the drive motor 13 is started, which drives the lead screw 11 to rotate, thereby causing the slider 12 connected to the lead screw 11 and the sliding plate 6 fixedly connected to the slider 12 to move into the heating furnace 4. When the sliding plate 6 enters the heating furnace 4, the electric push cylinder 18 is activated, causing the furnace door 5 to close the heating furnace 4. Then, the nut is heat treated. During the heat treatment, the nut is placed in another storage space formed by the loading frame 7 and the loading plate 8, which allows for alternating loading and unloading. After the heat treatment is completed, the device is restarted. Electric push cylinder 18 opens the furnace door 5 and starts the drive motor 13, allowing the heat-treated nuts to slide out of the heating furnace 4 and the untreated nuts to enter the heating furnace 4, thus improving the heat treatment efficiency. After the nuts slide out of the heating furnace 4, electric push cylinder 15 is started, which drives the connecting plate 16 to move down. This causes the guide rod 14, which is movably connected to the connecting plate 16, to move along the arc grooves on both sides of the carrying frame 7. This causes the carrying plate 8, which is fixedly connected to the guide rod 14, to move down, and then the heat-treated nuts slide out of the carrying frame 7 along the inclined carrying plate 8 and are collected.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A heat treatment device for high-strength rivet nuts, comprising a base (1), characterized in that: The base (1) is equipped with an installation plate (2) at its top end. The installation plate (2) is symmetrically equipped with guide rails (3). The base (1) is vertically equipped with a heating furnace (4) on both sides of the guide rails (3). The heating furnace (4) is slidably connected to both sides of the heating furnace (4). The top end of the guide rails (3) is slidably connected with two sets of sliding plates (6). The top end of the sliding plates (6) is fixedly equipped with a loading frame (7). The bottom end of the loading frame (7) is hinged with a loading plate (8). The loading plate (8) is provided with side plates (9) on both sides. The loading frame (7) is provided with movable grooves on both sides, and the side plates (9) are slidably connected inside the movable grooves.

2. The high-strength rivet nut heat treatment device as described in claim 1, characterized in that: Two sets of rotating seats (10) are fixedly installed on the top of the mounting plate (2). A lead screw (11) is installed inside the two sets of rotating seats (10). Two sets of ball nuts are installed on the outside of the lead screw (11). A slider (12) is installed on the outside of the two sets of ball nuts. The slider (12) is fixedly connected to the bottom end of the sliding plate (6). A drive motor (13) is fixedly installed on one side of the mounting plate (2). The output end of the drive motor (13) is connected to the lead screw (11) for transmission.

3. The high-strength rivet nut heat treatment device as described in claim 1, characterized in that: The loading frame (7) has symmetrical arc-shaped grooves on both sides. Guide rods (14) are slidably connected inside the arc-shaped grooves. One end of each of the two sets of guide rods (14) is fixedly connected to the side plate (9). Two sets of electric push cylinders (15) are vertically installed at the top of the sliding plate (6). A connecting plate (16) is fixedly installed at the output end of the electric push cylinder (15). One side of each of the two sets of connecting plates (16) has a waist-shaped groove, and the other end of each guide rod (14) passes through the corresponding waist-shaped groove.

4. The high-strength rivet nut heat treatment device as described in claim 3, characterized in that: Limiting rings (17) are fixedly installed on the outer side of each guide rod (14), and one side of each limiting ring (17) is in contact with the connecting plate (16).

5. The high-strength rivet nut heat treatment device as described in claim 1, characterized in that: Electric push cylinders (18) are vertically installed on both sides of the heating furnace (4), and top plates (19) are fixedly installed on the top of the two sets of furnace doors (5). The output ends of the electric push cylinders (18) are fixedly connected to the top plates (19).