A round soldering nut

Abstract

This utility model belongs to the field of welding nut technology and discloses a round welding nut, including a nut body. The lower end face of the nut body is provided with a radially arranged guide groove. One end of the guide groove is connected to the inner wall of the threaded hole, and the other end of the guide groove passes through and extends to the outer wall of the nut body. An annular plate is provided at the edge of the lower end face of the nut body. A positioning boss is provided at the bottom of the annular plate. A reinforcing rib is also provided on the lower end face of the nut body. One end of the reinforcing rib is connected to the outer wall of the nut body, and the other end is connected to the annular plate. An annular protrusion is provided on the top of the nut body. The arc trajectory of the guide groove can reduce the resistance to the flow of welding liquid. With the groove on the annular plate that matches the guide groove, a through drainage channel is formed to ensure that excess welding liquid is discharged from the outside of the nut, avoiding the formation of welding slag after the welding liquid enters the threaded hole and cools. This eliminates the need for subsequent manual thread cleaning and improves assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding nuts, specifically a round welding nut. Background Technology

[0002] Round weld nuts are common components used for connecting workpieces in industrial assembly. They are circular in shape with a threaded hole in the center for bolts to mate with. In use, the nut must first be fixed to the workpiece surface by welding before bolts are installed to achieve a tight connection between the workpieces. However, during the welding process, excess weld metal easily flows into the threaded hole in the center of the nut. After the weld metal cools, it forms weld slag that adheres to the threads, requiring manual cleaning of the threaded hole before subsequent bolt assembly. This adds an extra step and reduces overall assembly efficiency. Furthermore, the positioning of the nut before welding relies heavily on manual calibration, lacking a dedicated positioning structure, resulting in slow nut positioning and directly impacting welding efficiency.

[0003] Therefore, a round weld nut is proposed to address the above problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a round welding nut, which has the advantages of forming a drainage channel through the guide groove and the groove of the annular plate to avoid welding slag and eliminate the cleaning process, achieving rapid positioning with the help of the positioning boss, and using the annular protrusion and the arc-shaped guide groove to achieve bolt pre-guidance and provide support for the wrench, thus comprehensively improving the welding and assembly efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a round welded nut, comprising a nut body, wherein a guide groove is radially formed on the lower end face of the nut body, one end of the guide groove is connected to the inner wall of the threaded hole, and the other end of the guide groove passes through and extends to the outer wall of the nut body, an annular plate is provided on the edge of the lower end face of the nut body, a positioning boss is provided at the bottom of the annular plate, a reinforcing rib is also provided on the lower end face of the nut body, one end of the reinforcing rib is connected to the outer wall of the nut body, and the other end is connected to the annular plate, and an annular protrusion is provided on the top of the nut body.

[0006] Preferably, the nut body is cylindrical, and a threaded hole is provided axially through the nut body.

[0007] Preferably, the guide groove is arc-shaped and evenly distributed along the circumference of the nut body.

[0008] Preferably, the annular plate has a groove that communicates with the guide groove, and the positioning boss is circumferentially arranged at the bottom of the annular plate.

[0009] Preferably, the reinforcing rib is wedge-shaped and is integrally formed with the nut body and the annular plate.

[0010] Preferably, the annular protrusion has an arc-shaped guide groove, which is coaxially arranged with the threaded hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model can reduce the resistance to the flow of welding liquid by using the arc-shaped trajectory of the guide groove. Combined with the groove on the annular plate that matches the guide groove, a through drainage channel is formed, ensuring that excess welding liquid is discharged from the outside of the nut. This prevents the welding liquid from entering the threaded hole and cooling to form welding slag, eliminating the need for subsequent manual thread cleaning and improving assembly efficiency.

[0012] 2. This utility model, by providing an annular plate and a positioning boss, allows for rapid positioning of the nut by inserting the positioning boss into the positioning hole on the workpiece before welding, thereby improving the welding efficiency of the nut.

[0013] 3. With the annular protrusion and arc-shaped guide groove set in this utility model, when bolts are assembled after welding, the bolts first contact the arc-shaped guide groove of the annular protrusion, which can play a pre-guiding role for the bolts and prevent the bolts from failing to quickly align with the threaded holes due to assembly deviations. At the same time, the protruding structure of the annular protrusion provides a stable force support surface for the wrench, making it convenient for operators to tighten. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the lower end face structure of the nut body of this utility model; Figure 3 This is a schematic diagram of the upper end face structure of the nut body of this utility model; Figure 4 This is a cross-sectional view of the present invention.

[0015] In the diagram: 1. Nut body; 2. Guide groove; 3. Annular plate; 4. Positioning boss; 5. Reinforcing rib; 6. Annular protrusion; 7. Threaded hole; 8. Groove; 9. Arc-shaped guide groove. 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] The following describes an embodiment of this utility model based on its overall structure.

[0018] like Figures 1 to 4 As shown, this utility model provides a round welding nut, including a nut body 1. A guide groove 2 is radially formed on the lower end face of the nut body 1. One end of the guide groove 2 is connected to the inner wall of the threaded hole 7, and the other end of the guide groove 2 passes through and extends to the outer wall of the nut body 1. The radial arrangement of the guide groove 2 directly connects the threaded hole 7 and the outer side of the nut, providing a discharge path for excess welding liquid and structurally preventing welding liquid from stagnating in the threaded hole 7. An annular plate 3 is provided on the edge of the lower end face of the nut body 1. A positioning boss 4 is provided at the bottom of the annular plate 3. The annular plate 3 serves as the carrier of the positioning boss 4 and forms a stable lower end support structure with the nut body 1. With the positioning boss 4, it can quickly match the positioning hole of the workpiece, improving the positioning efficiency before welding. A reinforcing rib 5 is also provided on the lower end face of the nut body 1. One end of the reinforcing rib 5 is connected to the outer wall of the nut body 1, and the other end is connected to the annular plate 3. The reinforcing rib 5 connects the nut body 1 and the annular plate 3, enhancing the connection strength between the two and preventing structural deformation caused by stress during welding or assembly. An annular protrusion 6 is provided on the top of the nut body 1.

[0019] In this embodiment, the nut body 1 is cylindrical, and a threaded hole 7 is axially provided in the nut body 1. The threaded hole 7 is the core structure of the bolt assembly, ensuring that the bolt can be stably screwed in along the nut axis to achieve a fast connection of the workpiece.

[0020] The guide groove 2 is arc-shaped and evenly distributed around the nut body 1. Compared with straight grooves, the arc-shaped guide groove can reduce the resistance when the welding liquid flows, allowing the welding liquid to flow more smoothly from the threaded hole 7 to the outside of the nut, reducing blockage during the drainage process.

[0021] The annular plate 3 has a groove 8 that communicates with the guide groove 2, extending the drain channel from the nut body 1 to the annular plate 3, ensuring that the welding liquid can be completely discharged from the outside of the nut structure, and completely avoiding welding liquid residue. The positioning boss 4 is circumferentially set at the bottom of the annular plate 3. When inserted into the positioning hole, it can be evenly stressed along the circumferential direction, improving the stability and accuracy of positioning and reducing position deviation during welding.

[0022] The reinforcing rib 5 is wedge-shaped, and the reinforcing rib 5, the nut body 1, and the annular plate 3 are integrally formed. The integrally formed structure eliminates the connection gap, improves the rigidity and sealing of the overall structure, and reduces the assembly process and manufacturing costs.

[0023] An arc-shaped guide groove 9 is provided on the annular protrusion 6. The arc-shaped guide groove 9 is coaxially arranged with the threaded hole 7. When the bolt is assembled, the bolt head or screw first contacts the arc-shaped guide groove, and automatically aligns with the threaded hole through the guidance of the arc surface, effectively correcting assembly deviations and achieving rapid alignment.

[0024] The working principle and process of a round welded nut: The positioning boss 4 at the bottom of the annular plate 3 is assembled with the pre-set positioning structure of the workpiece. This avoids the nut from shifting due to localized stress before welding. During welding, excess welding liquid generated at high temperature accumulates at the contact surface between the nut body 1 and the workpiece. At this time, the arc-shaped guide groove 2 guides the welding liquid to flow along an arc-shaped trajectory. The welding liquid first enters the guide groove 2 from near the inner wall of the threaded hole 7, and then is directly discharged to the outside of the nut body 1 through the groove 8 on the annular plate 3, preventing the welding liquid from entering the threaded hole 7 and eliminating the problem of welding slag clogging the threads. When assembling the bolt after welding, the bolt first contacts the arc-shaped guide groove 9 of the annular boss 6. The arc-shaped guide groove 9 and the threaded hole 7... The coaxial design provides pre-guidance for the bolts, preventing them from failing to quickly align with the threaded hole 7 due to assembly deviations. Simultaneously, the raised structure of the annular protrusion 6 provides a stable support surface for the wrench, facilitating tightening. After the bolt is tightened, the nut must withstand the tensile and torsional loads transmitted from the workpiece. At this point, the wedge-shaped reinforcing rib 5, through the mechanical advantages of its wedge-shaped cross-section, evenly transfers the load from the nut body 1 to the annular plate 3, and then to the workpiece via the positioning boss 4. Furthermore, the integrated structure of the reinforcing rib 5, the nut body 1, and the annular plate 3 avoids stress concentration at the joints, effectively resisting tensile deformation and torsional loosening, preventing weld cracking due to excessive local stress, and extending the connection life.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] 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 round weld nut comprising a nut body (1), characterized in that: The lower end face of the nut body (1) is provided with a radial guide groove (2). One end of the guide groove (2) is connected to the inner wall of the threaded hole (7). The other end of the guide groove (2) passes through and extends to the outer wall of the nut body (1). The edge of the lower end face of the nut body (1) is provided with an annular plate (3). The bottom of the annular plate (3) is provided with a positioning boss (4). The lower end face of the nut body (1) is also provided with a reinforcing rib (5). One end of the reinforcing rib (5) is connected to the outer wall of the nut body (1), and the other end is connected to the annular plate (3). The top of the nut body (1) is provided with an annular protrusion (6).

2. A round weld nut according to claim 1, characterized in that: The nut body (1) is cylindrical, and the nut body (1) has a threaded hole (7) extending through it axially.

3. A round weld nut according to claim 2, characterized in that: The guide groove (2) is arc-shaped and evenly distributed along the circumference of the nut body (1).

4. A round weld nut according to claim 3, characterized in that: The annular plate (3) has a groove (8) that communicates with the guide groove (2), and the positioning boss (4) is circumferentially set at the bottom of the annular plate (3).

5. A round weld nut according to claim 4, characterized in that: The reinforcing rib (5) is wedge-shaped, and the reinforcing rib (5), the nut body (1), and the annular plate (3) are integrally formed.

6. A round weld nut according to claim 5, characterized in that: The annular protrusion (6) is provided with an arc-shaped guide groove (9), which is coaxially arranged with the threaded hole (7).

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