Nut for electromagnetic pulse welding

Abstract

The utility model relates to a nut for electromagnetic pulse welding, which comprises a nut main body provided with a threaded hole; the bottom of the nut body is connected with a welding structure which serves as a welding face and is composed of a plurality of nut substrates and a supporting plate, and the supporting plate is connected with the bottom of the nut body. The at least two nut substrates are connected with the supporting plate, and a certain included angle is formed between each nut substrate and the supporting plate; the nut body can be fixed to a flying plate of a welding workpiece through the positioning pin, and the flying plate can be stressed to collide with the nut base plate during welding. The supporting plate and a welding workpiece can form a closed structure, and splashing can be effectively prevented from entering threads. The nut used for electromagnetic pulse welding can be suitable for welding of dissimilar materials, specifically, metal collision welding is driven through electromagnetic pulses, and no heat input and no pollution emission exist in the welding process; the welding object can be aluminum, magnesium or other metal; the welding surface of the nut and the thread axis form an angle, so that welding spatter can be effectively prevented from entering the thread.

Description

Technical Field

[0001] The utility model relates to a nut, in particular to a nut used for electromagnetic pulse welding, which is suitable for welding dissimilar materials. Background Art

[0002] Currently, lightweighting vehicles has become a goal pursued by automakers for environmental protection and energy conservation. Currently, a common method for reducing vehicle weight is to replace steel with aluminum alloy plates. However, conventional projection welding and welding methods are incapable of welding nuts to aluminum plates. Furthermore, during welding, existing nuts can produce weld spatter that enters the threads, affecting weld quality.

[0003] Based on this, how to achieve a reliable connection between the aluminum plate and the nut with a relatively low cost and effectively prevent splashing from entering the thread has become an urgent problem that technicians in this field need to solve. Summary of the Invention

[0004] The purpose of the utility model is to provide a nut for electromagnetic pulse welding to solve the problem of preventing welding spatter from entering the thread and to achieve the welding problem of aluminum plate, magnesium plate substrate and nut.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A nut for electromagnetic pulse welding comprises a nut body 1 with a threaded hole formed thereon;

[0007] The bottom of the nut body 1 is connected to a welding structure, which serves as a welding surface and is composed of multiple nut base plates 3 and support plates connected thereto; the support plates are connected to the bottom of the nut body 1;

[0008] When there are two nut base plates 3, the two nut base plates 3 are symmetrically arranged on the left and right sides of the support plate 5, and a certain clamp is formed between the two support plates and the nut base plates 3; when there are more than two nut base plates 3, the multiple nut base plates 3 are evenly spaced along the thread axis of the nut body 1, and a certain angle is formed between each nut base plate 3 and the support plate;

[0009] The nut body 1 can be fixed to the fly plate of the welding workpiece through a positioning pin, and the fly plate can be subjected to force and collide with the nut base plate 3 during welding; the support plate can form a closed structure with the welding workpiece, which can effectively prevent splashes from entering the thread.

[0010] Furthermore, the nut body 1 is cylindrical, and a threaded hole with an internal thread 2 is provided therein and passes through the nut body 1 .

[0011] Furthermore, the nut body 1 and the welding structure are formed integrally.

[0012] Furthermore, the support plate and the plurality of nut base plates 3 are integrally formed.

[0013] Furthermore, there are two nut base plates 3 .

[0014] Furthermore, the angle between the support plate and the nut base plate 3 is 15 degrees.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The nut used for electromagnetic pulse welding of the utility model can be suitable for welding dissimilar materials. Specifically, the metal collision welding is driven by electromagnetic pulse. There is no heat input and no pollution emission in the welding process. The welding object can be aluminum, magnesium or other metals. The welding surface of the nut is at an angle to the thread axis, which can effectively prevent welding spatter from entering the thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a nut used for electromagnetic pulse welding according to the present invention;

[0019] Figure 2 This is a top view of a nut used for electromagnetic pulse welding according to the present invention.

[0020] In the figure, 1. nut body 2. internal thread 3. nut base plate 4. flying plate 5. support plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments:

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0023] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this utility model, the terms "first", "second", etc. are used only to distinguish the description and should not be understood as indicating or implying relative importance.

[0024] like Figure 1 As shown, the nut for electromagnetic pulse welding of the present invention includes a nut body 1, which is cylindrical and has a threaded hole with an internal thread 2 that passes through the nut body 1.

[0025] The bottom of the nut body 1 is connected to the welding structure and is integrally formed with the welding structure. The welding structure serves as a welding surface and is composed of multiple nut base plates 3 and support plates.

[0026] The support plate is connected to the bottom of the nut body 1 and is integrally formed with a plurality of nut base plates 3 .

[0027] When there are two or more nut base plates 3, the plurality of nut base plates 3 are evenly spaced along the thread axis of the nut body 1. Each nut base plate 3 forms a certain angle with the support plate.

[0028] Specifically, if Figure 1-Figure 2 As shown, in the present invention, there are two nut base plates 3, which are symmetrically arranged on the left and right sides of the support plate 5. The angle between the support plate and the nut base plate 3 is preferably 15 degrees, but can also be other degrees.

[0029] The nut body 1 can be fixed to the fly plate of the welding workpiece through a positioning pin, and the fly plate can be subjected to force and collide with the nut base plate 3 during welding.

[0030] The support plate can form a closed structure with the welding workpiece, which can effectively prevent spatter from entering the thread.

[0031] Example 1

[0032] like Figure 1-Figure 2 As shown, a nut for electromagnetic pulse welding includes a nut body 1, which is cylindrical and has a threaded hole with an internal thread 2 that passes through the nut body 1.

[0033] The bottom of the nut body 1 is connected to the welding structure and is formed integrally with the welding structure.

[0034] The welding structure serves as a welding surface and is composed of two nut base plates 3 and a support plate.

[0035] The support plate is connected to the bottom of the nut body 1 and is integrally formed with the two nut base plates 3. The support plate can form a closed structure with the welding workpiece, which can effectively prevent spatter from entering the thread.

[0036] The nut base plates 3 are two in number, symmetrically positioned on the left and right sides of the support plate 5. The angle between the support plate and the nut base plates 3 is 15 degrees. The nut body 1 is secured to the fly plate 4 of the welding workpiece via locating pins. The fly plate 4 can withstand the force of colliding with the nut base plates 3 during welding.

[0037] During welding, a locating pin is used to fix the nut body 1 and the flyer plate 4 of the welding workpiece together. The welding coil discharges from the side of the flyer plate 4, and the flyer plate 4 is forced to collide with the base plate 3 to complete the welding.

[0038] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A nut for electromagnetic pulse welding, characterized in that: It comprises a nut body (1) with a threaded hole formed thereon; The bottom of the nut body (1) is connected to a welding structure, which serves as a welding surface and is composed of a plurality of nut base plates (3) and support plates connected thereto; the support plates are connected to the bottom of the nut body (1); When there are two nut base plates (3), the two nut base plates (3) are symmetrically arranged on the left and right sides of the support plate (5), and a certain clamp is formed between the two support plates and the nut base plates (3); when there are more than two nut base plates (3), the multiple nut base plates (3) are evenly spaced along the thread axis of the nut body (1), and a certain angle is formed between each nut base plate (3) and the support plate; The nut body (1) can be fixed to the flying plate of the welding workpiece via a positioning pin, and the flying plate can be subjected to force to collide with the nut base plate (3) during welding; the support plate can form a closed structure with the welding workpiece, and can effectively prevent splashes from entering the thread.

2. A nut for electromagnetic pulse welding according to claim 1, characterized in that: The nut body (1) is cylindrical, and a threaded hole with an internal thread (2) is provided therein and passes through the nut body (1).

3. The nut for electromagnetic pulse welding according to claim 1, characterized in that: The nut body (1) and the welding structure are formed integrally.

4. The nut for electromagnetic pulse welding according to claim 1, characterized in that: The support plate and the plurality of nut base plates (3) are integrally formed.

5. The nut for electromagnetic pulse welding according to claim 1, characterized in that: There are two nut base plates (3).

6. The nut for electromagnetic pulse welding according to claim 1, characterized in that: The included angle between the support plate and the nut base plate (3) is 15 degrees.

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