Resistance-welding dowel

Abstract

The utility model discloses a kind of resistance welding positioning pins in the welding technical field, including main body column, the bottom of main body column is provided with limit disc, the top of main body column is provided with top end cavity, the inner wall of top end cavity is provided with inner cavity thread, the top of main body column is provided with positioning column, the top of positioning column is fixedly connected with positioning sharp head, the bottom of positioning column is fixedly connected with top end connecting column. By design positioning column and positioning sharp head, welding component can be more accurately positioned, improve welding accuracy and stability. Thread connection is used between main body column and positioning column, limit disc and bottom end column are also connected by thread, increase the stability of connecting part, prevent loosening or falling off in welding process. The design of threaded connection makes the assembly and disassembly of positioning pin more convenient, reduces operation difficulty and production cost. The resistance welding positioning pin of the utility model is compact in structure, easy to process and manufacture, suitable for mass production.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically a resistance welding positioning pin. Background Technology

[0002] In the field of resistance welding, locating pins, as a key positioning and connecting component, are widely used in various welding processes. Traditional resistance welding locating pins have some shortcomings in structural design and functional implementation, such as low positioning accuracy, poor connection stability, and inconvenient assembly and disassembly. These problems not only affect the welding quality of resistance welding but also increase production costs and operational difficulty. Therefore, there is an urgent need for a new type of resistance welding locating pin to solve the problems existing in the current technology, improve positioning accuracy and connection stability, simplify the assembly and disassembly process, and reduce production costs. Utility Model Content

[0003] The purpose of this invention is to provide a resistance welding positioning pin to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a resistance welding positioning pin, comprising a main column, a limiting plate at the bottom of the main column, a top cavity at the top of the main column, an inner thread on the inner wall of the top cavity, a positioning pin at the top of the main column, a positioning tip fixedly connected to the top of the positioning pin, a top connecting pin fixedly connected to the bottom of the positioning pin, the outer diameter of the top connecting pin matching the inner diameter of the top cavity, a top thread on the outer wall of the top connecting pin, and the top connecting pin and the top cavity being detachably connected via the top thread and the inner thread.

[0005] As a further embodiment of this utility model: the limiting plate has an arc-shaped surface at one end near the main column, the top of the arc-shaped surface has a connecting platform, and the bottom of the main column is fixedly connected to the bottom of the connecting platform.

[0006] As a further improvement of this utility model: the bottom of the limiting plate is provided with a bottom post, and the bottom outer wall of the bottom end of the bottom post is provided with a connecting thread.

[0007] As a further improvement of this utility model: the bottom of the limiting plate is provided with a bottom cavity, which is opened through the inner wall of the limiting plate and the main column.

[0008] As a further improvement of this utility model, the inner wall of the bottom cavity is provided with a bottom thread.

[0009] As a further embodiment of this utility model: a bottom connecting post is fixedly connected to the top of the bottom post, the outer diameter of the bottom connecting post matches the inner diameter of the bottom cavity, the outer wall of the bottom connecting post is provided with a bottom connecting thread, the bottom connecting post is inserted into the bottom cavity, and the bottom connecting thread is connected to the bottom thread.

[0010] Compared with existing technologies, the advantages of this invention are as follows: By designing positioning posts and positioning tips, the welding components can be positioned more precisely, improving welding accuracy and stability. The main post and positioning post are connected by threads, as are the limiting plate and bottom post, increasing the stability of the connection and preventing loosening or detachment during welding. The threaded connection design makes the assembly and disassembly of the positioning pin more convenient, reducing operational difficulty and production costs. The resistance welding positioning pin of this invention has a compact structure, is easy to manufacture, and is suitable for large-scale production. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of a resistance welding positioning pin according to the present invention. Figure 2 This is a schematic diagram showing the disassembled structure of the positioning column in a resistance welding positioning pin according to this utility model. Figure 3 This is a schematic diagram showing the disassembled structure of the bottom column in a resistance welding positioning pin according to this utility model. Figure 4 This is a schematic diagram of the bottom structure of the limiting plate in a resistance welding positioning pin according to this utility model.

[0012] In the diagram: 1. Main column; 11. Top cavity; 12. Inner cavity thread; 2. Limiting plate; 21. Bottom cavity; 22. Bottom thread; 3. Arc-shaped surface; 4. Connecting platform; 5. Bottom column; 51. Bottom connecting column; 52. Bottom connecting thread; 6. Connecting thread; 7. Positioning column; 71. Top connecting column; 72. Top thread; 8. Positioning tip. Detailed Implementation

[0013] 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.

[0014] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0015] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Please see Figures 1-4 In this embodiment of the utility model, a resistance welding positioning pin is mainly composed of a main body column 1, a limiting plate 2, a positioning column 7, and other components.

[0018] Main column 1: As the main support structure for the positioning pin, its bottom is connected to the limiting plate 2. The top of the main column 1 has a top cavity 11, and the inner wall of the cavity is engraved with an inner cavity thread 12 for threaded connection with the top connecting column 71 of the positioning column 7.

[0019] Limiting plate 2: Located at the bottom of the main column 1, it increases the contact area between the locating pin and the welded component, improving the stability of the connection. An arc-shaped surface 3 is formed at one end of the limiting plate 2 near the main column 1, and a connecting platform 4 is provided at the top of the arc-shaped surface. The bottom of the main column 1 is connected to the bottom of the connecting platform 4 by welding or other fixing methods. A bottom end cavity 21 is also formed at the bottom of the limiting plate 2, which extends through the inner walls of both the limiting plate 2 and the main column 1. The inner wall of the bottom end cavity 21 is engraved with bottom end threads 22.

[0020] Positioning pin 7: Located at the top of the main column 1, it is used for precise positioning of the welding components. A positioning tip 8 is fixedly connected to the top of the positioning pin 7. The shape of the positioning tip 8 can be adjusted according to specific welding requirements to achieve more precise positioning. A top connecting pin 71 is fixedly connected to the bottom of the positioning pin 7. The outer diameter of the top connecting pin 71 matches the inner diameter of the top cavity 11, and the outer wall of the top connecting pin 71 is engraved with a top thread 72. The positioning pin 7 and the main column 1 are detachably connected through the threaded connection between the top thread 72 and the inner cavity thread 12.

[0021] In addition, the bottom of the limiting plate 2 is provided with a bottom post 5. The bottom outer wall of the bottom post 5 is engraved with a connecting thread 6 for threaded connection with the welded parts or other connecting structures. A bottom connecting post 51 is fixedly connected to the top of the bottom post 5. The outer diameter of the bottom connecting post 51 matches the inner diameter of the bottom cavity 21, and the outer wall of the bottom connecting post 51 is engraved with a bottom connecting thread 52. Through the threaded connection between the bottom connecting thread 52 and the bottom thread 22, a stable connection between the bottom post 5 and the limiting plate 2 is achieved.

[0022] The working principle of this utility model is as follows: In use, firstly, the positioning pin 7 is threadedly connected to the inner cavity thread 12 of the main body pin 1 via the top thread 72 on its top connecting pin 71, ensuring a stable connection between the positioning pin 7 and the main body pin 1. Then, the bottom pin 5 is threadedly connected to the bottom thread 22 of the limiting plate 2 via the bottom connecting thread 52 on its bottom connecting pin 51, achieving a stable connection between the bottom pin 5 and the limiting plate 2. At this point, the entire resistance-welded positioning pin structure is assembled.

[0023] During resistance welding, the locating tip 8 of the locating pin first contacts the corresponding position of the component to be welded. By adjusting the position and direction of the locating pin, precise alignment of the component to be welded is ensured. Then, the resistance welding equipment is used to weld the component. Due to the reasonable structural design of the locating pin and the stable connection, it is not easy for it to loosen or fall off during the welding process, thus ensuring the welding quality and stability.

[0024] After the welding operation is completed, if it is necessary to disassemble the positioning pin, simply loosen the threaded connection between the positioning pin 7 and the main body pin 1, and between the bottom pin 5 and the limiting plate 2. The operation is simple and convenient.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0026] It should be noted that, in this document, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0027] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A resistance welding positioning pin, comprising a main body post (1), characterized in that: The bottom of the main column (1) is provided with a limiting plate (2), the top of the main column (1) is provided with a top cavity (11), the inner wall of the top cavity (11) is provided with an inner cavity thread (12), the top of the main column (1) is provided with a positioning column (7), the top of the positioning column (7) is fixedly connected with a positioning tip (8), the bottom of the positioning column (7) is fixedly connected with a top connecting column (71), the outer diameter of the top connecting column (71) matches the inner diameter of the top cavity (11), the outer wall of the top connecting column (71) is provided with a top thread (72), and the top connecting column (71) and the top cavity (11) are detachably connected by the top thread (72) and the inner cavity thread (12).

2. The resistance welding positioning pin according to claim 1, characterized in that: The limiting plate (2) has an arc-shaped surface (3) at one end near the main column (1), and a connecting platform (4) is provided at the top of the arc-shaped surface (3). The bottom of the main column (1) is fixedly connected to the bottom of the connecting platform (4).

3. The resistance welding positioning pin according to claim 1, characterized in that: The bottom of the limiting plate (2) is provided with a bottom post (5), and the bottom outer wall of the bottom post (5) is provided with a connecting thread (6).

4. A resistance welding positioning pin according to claim 1, characterized in that: The bottom of the limiting plate (2) is provided with a bottom cavity (21), which is opened through the inner wall of the limiting plate (2) and the main column (1).

5. A resistance welding positioning pin according to claim 4, characterized in that: The inner wall of the bottom cavity (21) is provided with a bottom thread (22).

6. A resistance welding positioning pin according to claim 3, characterized in that: The bottom end post (5) is fixedly connected to the top of the bottom end post (5). The outer diameter of the bottom end post (51) matches the inner diameter of the bottom end cavity (21). The outer wall of the bottom end post (51) is provided with a bottom end connection thread (52). The bottom end post (51) is inserted into the bottom end cavity (21). The bottom end connection thread (52) is threadedly connected to the bottom end thread (22).

Images