Positioning of welded nuts

Abstract

The utility model discloses a positioning nut, including nut body, cylinder, flange, threaded hole, welding convex point, reinforcing component, annular reinforcing ring, upper annular reinforcing rib, lower annular reinforcing rib and reinforcing rib column, the nut body includes cylinder, the bottom dead center of cylinder is integrally formed with flange, the center of cylinder and flange all are provided with the threaded hole of intercommunication, the bottom dead surface of flange is equipped with a plurality of welding convex points, the top surface of flange is equipped with reinforcing component, reinforcing component includes annular reinforcing ring, upper annular reinforcing rib, lower annular reinforcing rib and reinforcing rib column, annular reinforcing ring is welded in the top surface of flange, and the interval is left between annular reinforcing ring and cylinder, and the interval between annular reinforcing ring and cylinder is installed with upper annular reinforcing rib and lower annular reinforcing rib, the utility model discloses through welding convex point provides basic connection, and reinforcing component can bear structural load, reduces the risk of welding spot fatigue.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to the field of positioning and welding nuts. Background Technology

[0002] A weld nut is a type of nut that is suitable for welding. It is usually made of weldable material and is relatively thick for welding. Welding is used to fix the weld nut to a component, and it is a part that is screwed together with a bolt or screw to perform a fastening function. Welding is equivalent to turning two separate parts into a whole.

[0003] In the existing technology, one end of the nut is deformed by extrusion to increase the friction between the threads after mating, thereby forming a self-locking force, which enables the nut to connect and self-lock. Due to the extrusion action, the thread hole of this self-locking nut changes from round to elliptical, making assembly difficult and inefficient in use.

[0004] To address the problems mentioned above, for example, application number CN201020207082.4 discloses a flange hexagonal nut with a self-locking function. This flange hexagonal nut consists of a hexagonal body, a flange, self-locking deformation points, and an internal threaded hole. The hexagonal body and the flange can be a single unit or connected by welding or other methods. The flange can be circular, hexagonal, polygonal, curved, or other shapes. Self-locking deformation points are designed on three non-adjacent planes of the nut's hexagonal body. These three self-locking deformation points can be formed by extrusion or other methods. This invention, by adding a flange to a conventional nut and providing self-locking deformation points on three non-adjacent planes of the nut's hexagonal body, enables the nut to have a self-locking capability.

[0005] In the above structure, the welding points of the flange nuts are mostly point-like structures, which are not strong and are prone to breakage. After the flange nuts and bolts are assembled, moisture in the air can easily seep into the connection between the nuts and bolts through the weld gaps, causing rust to appear at the connection and making disassembly difficult.

[0006] To address the problems mentioned above, for example, application number CN202020717128.0 discloses a rust-proof welded flange nut, including a nut body, a flange, strip weld points, an upper sealing ring, a lower sealing groove, a compression sealing ring, and a pressure-resistant spring. The nut body has a vertically penetrating threaded hole, with the upper sealing ring embedded at the top of the threaded hole. The flange is located at the bottom of the nut body, and several strip weld points are located at the bottom of the flange. A lower sealing groove is located inside the strip weld points, and a compression sealing ring is located within the lower sealing groove. By combining the nut body, flange, strip weld points, upper sealing ring, lower sealing groove, compression sealing ring, and pressure-resistant spring, and through experimental optimization, the welding strength of the flange nut can be significantly improved, the connection sealing performance can be significantly enhanced, and the welded assembly is less susceptible to moisture corrosion, resulting in a reasonable structure.

[0007] However, the above structure still has the following drawbacks: The lack of three-dimensional reinforcement at the connection between the flange and the cylinder makes the threaded hole prone to failure due to long-term vibration, thus failing to make the nut more secure and reducing its service life. Summary of the Invention

[0008] The purpose of this invention is to solve the problems in the prior art by proposing a positioning welding nut that provides a basic connection through welding protrusions, strengthens the component to bear structural loads, and reduces the risk of weld fatigue.

[0009] To achieve the above objectives, this utility model proposes a positioning welded nut, comprising a nut body, a cylinder, a flange, a threaded hole, welding protrusions, a reinforcing component, an annular reinforcing ring, an upper annular reinforcing rib, a lower annular reinforcing rib, and reinforcing rib columns. The nut body includes a cylinder, the bottom end of which is integrally formed with a flange. Both the cylinder and the flange have interconnected threaded holes at their centers. The bottom surface of the flange has several welding protrusions. The top surface of the flange has a reinforcing component, which includes an annular reinforcing ring, an upper annular reinforcing rib, a lower annular reinforcing rib, and reinforcing rib columns. The annular reinforcing ring is welded to the top surface of the flange. A gap exists between the annular reinforcing ring and the cylinder. The upper and lower annular reinforcing ribs are installed within the gap between the annular reinforcing ring and the cylinder. Several reinforcing rib columns are welded between the upper and lower annular reinforcing ribs.

[0010] Preferably, there are four welding protrusions, which are evenly distributed on the four edges of the bottom of the flange.

[0011] Preferably, the top surface of the flange is provided with an annular groove that matches the lower annular reinforcing rib, and the lower annular reinforcing rib is embedded in the annular groove.

[0012] Preferably, the reinforcing ribs are distributed in a ring at equal intervals between the upper and lower annular reinforcing ribs.

[0013] Preferably, the sidewalls of the upper and lower annular reinforcing ribs are jointly equipped with four positioning components, which are arranged in a circular array.

[0014] Preferably, the positioning assembly includes a first positioning post, a first positioning plate, a second positioning post, and a second positioning plate. The first positioning post is welded to the inner sidewalls of the upper and lower annular reinforcing ribs, and the first positioning plate is welded to the ends of the first positioning posts. The first positioning plate abuts against the outer sidewall of the cylinder. The second positioning post is welded to the outer sidewalls of the upper and lower annular reinforcing ribs, and the second positioning plate is welded to the ends of the second positioning posts. The second positioning plate abuts against the inner sidewall of the annular reinforcing ring.

[0015] The beneficial effects of this utility model are: This invention improves the strength of the connection between the cylinder and the flange by the combined action of welding protrusions, reinforcing components, annular reinforcing rings, upper annular reinforcing ribs, lower annular reinforcing ribs, and reinforcing rib columns. On one hand, the upper and lower annular reinforcing ribs form a spatial truss structure through the reinforcing rib columns, effectively supporting and strengthening the connection between the flange and the cylinder, thus significantly resisting torsional loads and axial shear forces. The equally spaced reinforcing rib columns ensure that external loads are evenly transmitted to the flange along the annular direction, avoiding stress concentration in local areas. On the other hand, the lower annular reinforcing rib is embedded in the annular groove on the flange, forming a mechanical interlock, thereby suppressing the radial expansion deformation of the flange under welding or load. Furthermore, the first positioning plate abuts against the outer wall of the cylinder, thus limiting the radial displacement of the reinforcing components and the cylinder. The second positioning plate abuts against the inner wall of the annular reinforcing ring, thus preventing the reinforcing components from expanding outward, ensuring the effectiveness of the reinforcing components. Therefore, the four sets of symmetrically distributed positioning components form a closed-loop constraint, preventing displacement of the reinforcing structure in a vibration environment, maintaining the coaxiality of the threaded holes, and thus extending the service life of the nut body. Attached Figure Description

[0016] Figure 1 This is a front view of a positioning welding nut according to this utility model; Figure 2 This is a schematic diagram of the back of a positioning welding nut according to the present invention; Figure 3 This is a schematic diagram of the annular groove of a positioning welding nut according to the present invention; Figure 4 This is a schematic diagram of a reinforcement component for a positioning welded nut according to the present invention; Figure 5This is a schematic diagram of the installation of a reinforcement component for a positioning welding nut according to this utility model; Figure 6 This is a schematic diagram of a positioning component for a positioning welding nut according to the present invention; In the figure: 1-nut body, 2-cylinder, 3-flange, 4-threaded hole, 5-welding protrusion, 6-reinforcing component, 601-annular reinforcing ring, 602-upper annular reinforcing rib, 603-lower annular reinforcing rib, 604-reinforcing rib post, 7-annular groove, 8-positioning component, 801-first positioning post, 802-first positioning plate, 803-second positioning post, 804-second positioning plate. Detailed Implementation

[0017] Example 1 See Figure 1 This utility model discloses a positioning welding nut, comprising a nut body 1, a cylinder 2, a flange 3, a threaded hole 4, welding protrusions 5, a reinforcing component 6, an annular reinforcing ring 601, an upper annular reinforcing rib 602, a lower annular reinforcing rib 603, and a reinforcing rib column 604. The nut body 1 includes a cylinder 2, with a flange 3 integrally formed at the bottom end of the cylinder 2. Both the cylinder 2 and the flange 3 have interconnected threaded holes 4 at their centers. The bottom surface of the flange 3 has several welding protrusions 5. The top surface of the flange 3 has a reinforcing component 6, which includes an annular reinforcing ring 601, an upper annular reinforcing rib 602, a lower annular reinforcing rib 603, and a reinforcing rib column 604. The ring 601 is welded to the top surface of the flange 3. A gap is left between the annular reinforcing ring 601 and the cylinder 2. An upper annular reinforcing rib 602 and a lower annular reinforcing rib 603 are installed in the gap between the annular reinforcing ring 601 and the cylinder 2. Several reinforcing rib columns 604 are welded between the upper annular reinforcing rib 602 and the lower annular reinforcing rib 603. By forming a spatial truss structure through the reinforcing rib columns 604, the connection between the flange 3 and the cylinder 2 is effectively supported and reinforced, thereby significantly resisting torsional loads and axial shear forces, thus improving the strength of the connection between the flange 3 and the cylinder 2, and making the nut body 1 more robust and durable.

[0018] See Figure 2There are four welding protrusions 5, which are evenly distributed on the four edges of the bottom end of the flange 3. Similarly, the workpiece (not shown in the figure) also has four welding points corresponding to the welding protrusions 5. Therefore, by evenly distributing the welding protrusions 5 on the bottom end of the flange 3, on the one hand, the four welding protrusions 5 evenly distributed on the bottom edge of the flange 3 can form a symmetrical support structure, which can evenly disperse thermal stress during welding and prevent the flange 3 from warping and deforming due to uneven local heating. On the other hand, the welding protrusions 5, as the initial contact points during welding, can provide a clear positioning reference, ensuring that the nut body 1 and the workpiece are quickly aligned, reducing the risk of assembly misalignment. Moreover, the welding protrusions 5 melt in a concentrated manner to form a weld nugget, which can reduce heat input compared to continuous welds, avoid the expansion of the heat-affected zone of the flange 3, and at the same time, a high-strength metallurgical bond is formed in the core area of ​​the weld point, thereby effectively improving welding efficiency and quality and greatly shortening the processing time.

[0019] Example 2 See Figure 3 The top surface of the flange 3 is provided with an annular groove 7 that is adapted to the lower annular reinforcing rib 603. The lower annular reinforcing rib 603 is embedded in the annular groove 7. By providing an annular groove 7 on the top surface of the flange 3, the lower annular reinforcing rib 603 is embedded in the annular groove 7 on the flange 3, forming a mechanical interlock. This suppresses the radial expansion deformation of the flange 3 under welding or load, reduces the risk of damage to the flange 3, and reduces maintenance costs.

[0020] See Figure 4 The reinforcing ribs 604 are distributed in a ring at equal intervals between the upper ring reinforcing rib 602 and the lower ring reinforcing rib 603. By distributing the reinforcing ribs 604 at equal intervals, the external load is uniformly transferred to the flange 3 along the ring direction, avoiding stress concentration in local areas.

[0021] See Figure 5 The upper annular reinforcing rib 602 and the lower annular reinforcing rib 603 are equipped with four positioning components 8 on their sidewalls. The four positioning components 8 are arranged in a ring array. The four symmetrically distributed positioning components 8 form a closed loop constraint to prevent the reinforced structure from displacing in a vibration environment, maintain the coaxiality of the threaded hole, and thus extend the service life of the nut body 1.

[0022] Example 3 See Figure 6The positioning component 8 includes a first positioning post 801, a first positioning plate 802, a second positioning post 803, and a second positioning plate 804. The first positioning post 801 is welded to the inner walls of the upper annular reinforcing rib 602 and the lower annular reinforcing rib 603, respectively. The first positioning plate 802 is welded to the end of the first positioning post 801. The first positioning plate 802 abuts against the outer wall of the cylinder 2. The second positioning post 803 is welded to the outer walls of the upper annular reinforcing rib 602 and the lower annular reinforcing rib 603, respectively. The second positioning plate 804 is welded to the end of the second positioning post 803. The second positioning plate 804 abuts against the inner wall of the annular reinforcing ring 601. By abutting the outer wall of the cylinder 2 with the first positioning plate 802, the radial displacement of the reinforcing component 6 and the cylinder 2 is restricted. By abutting the inner wall of the annular reinforcing ring 601 with the second positioning plate 804, the reinforcing component 6 is prevented from expanding outward, thus ensuring the effectiveness of the reinforcing component 6.

[0023] The working process of this utility model: In the operation of this utility model of a positioning welded nut, firstly, the four welding protrusions 5 at the bottom of the flange 3 contact the workpiece surface. After energization, the protrusions melt to form a weld nugget, realizing the rapid positioning and fixing of the nut body 1. Secondly, when the external load is transmitted through the flange 3 to the annular reinforcing ring 601 and the reinforcing component 6, the upper annular reinforcing rib 602 and the lower annular reinforcing rib 603 form a spatial truss structure through the reinforcing rib column 604, thereby effectively supporting and reinforcing the connection between the flange 3 and the cylinder 2, thus significantly resisting torsional load and axial shear force, thereby improving the strength of the connection between the flange 3 and the cylinder 2. At the same time, the bidirectional clamping action of the positioning component 8 maintains the coaxial relationship between the cylinder 2 and the reinforcing component 6, ensuring that the threaded hole 4 does not deflect, making the nut body 1 more robust and durable.

[0024] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A positioning weld nut, characterized in that: The nut body (1) includes a cylinder (2), a flange (3), a threaded hole (4), welding protrusions (5), a reinforcing assembly (6), an annular reinforcing ring (601), an upper annular reinforcing rib (602), a lower annular reinforcing rib (603), and a reinforcing rib column (604). The nut body (1) includes a cylinder (2), the bottom end of which is integrally formed with a flange (3). The center of the cylinder (2) and the flange (3) are both provided with a threaded hole (4). The bottom end face of the flange (3) is provided with several welding protrusions (5). The top end face of the flange (3) is provided with a reinforcing assembly. The reinforcing component (6) includes an annular reinforcing ring (601), an upper annular reinforcing rib (602), a lower annular reinforcing rib (603), and reinforcing rib columns (604). The annular reinforcing ring (601) is welded to the top surface of the flange (3). There is a gap between the annular reinforcing ring (601) and the cylinder (2). The upper annular reinforcing rib (602) and the lower annular reinforcing rib (603) are installed in the gap between the annular reinforcing ring (601) and the cylinder (2). Several reinforcing rib columns (604) are welded between the upper annular reinforcing rib (602) and the lower annular reinforcing rib (603).

2. A positioning weld nut as described in claim 1, characterized in that: There are four welding protrusions (5), which are evenly distributed on the four edges of the bottom of the flange (3).

3. A positioning weld nut as described in claim 1, characterized in that: The top surface of the flange (3) is provided with an annular groove (7) that is adapted to the lower annular reinforcing rib (603), and the lower annular reinforcing rib (603) is embedded in the annular groove (7).

4. A positioning weld nut as described in claim 1, characterized in that: The reinforcing ribs (604) are distributed in a ring at equal intervals between the upper ring reinforcing ribs (602) and the lower ring reinforcing ribs (603).

5. A positioning weld nut as described in claim 1, characterized in that: The upper annular reinforcing rib (602) and the lower annular reinforcing rib (603) are equipped with four positioning components (8) on their sidewalls, and the four positioning components (8) are arranged in a ring array.

6. A positioning weld nut as described in claim 5, characterized in that: The positioning component (8) includes a first positioning post (801), a first positioning plate (802), a second positioning post (803), and a second positioning plate (804). The first positioning post (801) is welded to the inner sidewalls of the upper annular reinforcing rib (602) and the lower annular reinforcing rib (603), respectively. The ends of the first positioning post (801) are welded together with the first positioning plate (802). The first positioning plate (802) abuts against the outer sidewall of the cylinder (2). The second positioning post (803) is welded to the outer sidewalls of the upper annular reinforcing rib (602) and the lower annular reinforcing rib (603), respectively. The ends of the second positioning post (803) are welded together with the second positioning plate (804). The second positioning plate (804) abuts against the inner sidewall of the annular reinforcing ring (601).

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