Welding position correcting device

Abstract

The utility model discloses a welding position correcting device which comprises a supporting column, a welding gun, a welding rod, a welding rod, a welding rod, a positioning device and an adjusting device, and the length direction of the supporting column is parallel to the axis of a welding gun nozzle; the contact plate is fixed to the other end of the supporting column, the plane where the contact plate is located is perpendicular to the length direction of the supporting column, and the projection of the end of the welding stud on the plane where the contact plate is located does not coincide with the contact plate; the pressing plate is fixed to the supporting column and located between the contact plate and the welding gun nozzle, the pressing plate is used for fixing a ceramic ring, the ceramic ring is used for covering the end of the welding stud, the projection of the ceramic ring on the plane where the contact plate is located does not coincide with the contact plate, and the distance between the pressing plate and the side, away from the welding gun nozzle, of the contact plate is equal to the length of the ceramic ring; the welding gun is used for enabling the welding stud to penetrate through the pressing plate and be close to the contact plate till the end of the welding stud and the side, away from the welding gun nozzle, of the contact plate are located on the same plane. According to the embodiment provided by the invention, the welding quality and the inspection qualification rate of the shear nail can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a welding alignment device. BACKGROUND

[0002] At present, shear pins usually need to be welded by a welding gun. Since workers do not strictly control the key points of welding, and the structure of the welding gun is easy to cause the shear pin to deviate from the original set welding angle, the end face of the shear pin is easy to be partially missed welded, resulting in low welding quality and low inspection qualified rate of the shear pin. CONTENT OF THE UTILITY MODEL

[0003] The following is a summary of the subject matter described in detail in this document, which is not intended to limit the protection scope of the claims.

[0004] The present application provides a welding alignment device, which can improve the welding quality and inspection qualified rate of the shear pin.

[0005] The present application provides a welding alignment device, which is applied to a welding gun. An end of the welding gun is provided with a welding gun nozzle. The welding gun nozzle is used for mounting a welding pin. The axis of the welding pin is on the same straight line as the axis of the welding gun nozzle. The welding alignment device comprises a support column. One end of the support column is movably connected with the welding gun. The length direction of the support column is parallel to the axis of the welding gun nozzle. A contact plate is fixed on the other end of the support column. The plane on which the contact plate is located is perpendicular to the length direction of the support column. The projection of the end of the welding pin on the plane on which the contact plate is located does not coincide with the contact plate. A pressing plate is fixed on the support column. The pressing plate is located between the contact plate and the welding gun nozzle. The pressing plate is used for fixing a porcelain ring. The porcelain ring is used for covering the end of the welding pin. The projection of the porcelain ring on the plane on which the contact plate is located does not coincide with the contact plate. The distance between the side of the pressing plate which is away from the welding gun nozzle and the side of the contact plate which is away from the welding gun nozzle is equal to the length of the porcelain ring. The welding gun is used for making the welding pin pass through the pressing plate and approach the contact plate until the end of the welding pin is on the same plane as the side of the contact plate which is away from the welding gun nozzle.

[0006] In some embodiments, the side of the contact plate which is close to the welding pin is provided with a first notch. The side of the pressing plate which is close to the welding pin is provided with a second notch.

[0007] In some embodiments, the first notch and the second notch are symmetrical polygonal notches.

[0008] In some embodiments, the pressing plate is parallel to the contact plate.

[0009] In some embodiments, the side surface area of the contact plate is greater than the side surface area of the pressing plate.

[0010] In some embodiments, the number of the support columns is two, and the two support columns are symmetrically arranged on two sides of the welding gun.

[0011] In some embodiments, the side of the contact plate away from the welding gun is parallel to the plane where the two support columns are located.

[0012] In some embodiments, the end of the support column movably connected with the welding gun penetrates the welding gun and extends away from the contact plate.

[0013] In some embodiments, the support column is located between the welding gun nozzle and the handle of the welding gun.

[0014] In some embodiments, the support column penetrates the welding gun, the side of the welding gun close to the connecting plate is provided with a first positioning ring, the support column penetrates the first positioning ring, the support column is provided with a second positioning ring, the second positioning ring is located between the welding gun and the connecting plate, and the first positioning ring is connected with the second positioning ring through a return spring.

[0015] The embodiments of the present application have at least the following beneficial effects: the end of the welding gun is provided with a welding gun nozzle, the welding gun nozzle is used for mounting a welding pin, the axis of the welding pin is on the same line as the axis of the welding gun nozzle, then one end of the support column is movably connected with the welding gun, the contact plate is fixed at the other end of the support column, the pressing plate is fixed on the support column, and the pressing plate is located between the contact plate and the welding gun nozzle, since the length direction of the support column is parallel to the axis of the welding gun nozzle, and the plane where the contact plate is located is perpendicular to the length direction of the support column, therefore, the plane where the contact plate is located is perpendicular to the axis of the welding gun nozzle, and then the plane where the contact plate is located is perpendicular to the axis of the welding pin, since the projection of the end of the welding pin on the plane where the contact plate is located does not coincide with the contact plate, and the projection of the porcelain ring on the plane where the contact plate is located does not coincide with the contact plate, and the porcelain ring is used for covering the end of the welding pin, therefore, in the process of making the welding pin close to the contact plate through the welding gun, the porcelain ring and the welding pin can both penetrate the contact plate, the welding pin can penetrate the pressing plate, then before the welding gun is started, the contact plate will be attached to the welding plane, since the distance between the side of the pressing plate away from the welding gun nozzle and the side of the contact plate away from the welding gun nozzle is equal to the length of the porcelain ring, therefore, the porcelain ring will finally be fixed between the pressing plate and the welding plane, on the one hand, the porcelain ring can fix the welding pin, and ensure that the welding position of the welding pin will not be deviated, and improve the welding quality of the welding pin, on the other hand, the end of the welding pin and the side of the contact plate away from the welding gun nozzle are on the same plane, so that the end of the welding pin can contact the welding plane, and the plane where the contact plate is located is perpendicular to the axis of the welding pin, which is equivalent to that the axis of the welding pin is perpendicular to the welding plane, can improve the perpendicularity of the welding pin when welding, and improve the attachment degree between the end of the welding pin and the welding plane, so as to make the end surface of the welding pin be welded completely, and improve the welding quality of the welding pin and the inspection qualified rate.

[0016] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0018] Figure 1 This is a schematic diagram of the welding positioning device provided in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure of the welding torch nozzle provided in an embodiment of this application. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, 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 application 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 application.

[0022] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0024] Currently, shear studs are usually welded using a welding gun. However, due to workers' lack of strict control over the key points of welding and the structure of the welding gun itself, the shear studs are prone to deviating from the originally set welding angle. As a result, the end face of the shear studs is prone to local incomplete welding, leading to low welding quality and a low inspection pass rate.

[0025] To address the issues of low welding quality and low inspection pass rate of shear studs, this application provides a welding alignment device applied to a welding gun. The welding gun has a nozzle at its end for mounting welding studs. The axis of the welding stud is collinear with the axis of the nozzle. The welding alignment device includes: a support column, one end of which is movably connected to the welding gun, and the length direction of the support column is parallel to the axis of the nozzle; a contact plate, fixed to the other end of the support column, with its plane perpendicular to the length direction of the support column, and the projection of the welding stud's end onto the contact plate's plane not coinciding with the contact plate; and a pressure plate, fixed to the support column, located between the contact plate and the nozzle, for fixing a ceramic ring that covers the end of the welding stud, the projection of the ceramic ring onto the contact plate's plane not coinciding with the contact plate, and the distance between the pressure plate and the side of the contact plate furthest from the nozzle equal to the length of the ceramic ring; wherein, the welding gun is used to make the welding stud pass through the pressure plate and approach the contact plate until the end of the welding stud is collinear with the side of the contact plate furthest from the nozzle. According to the solution provided in the embodiments of this application, the end of the welding gun is provided with a welding nozzle, which is used to install welding studs. The axis of the welding studs is on the same straight line as the axis of the welding nozzle. Then, one end of the support column is movably connected to the welding gun, the contact plate is fixed to the other end of the support column, and the pressure plate is fixed on the support column, with the pressure plate located between the contact plate and the welding nozzle. Since the length direction of the support column is parallel to the axis of the welding nozzle, and the plane of the contact plate is perpendicular to the length direction of the support column, the plane of the contact plate is perpendicular to the axis of the welding nozzle, and consequently, the plane of the contact plate is perpendicular to the axis of the welding stud. Furthermore, since the projection of the end of the welding stud on the plane of the contact plate does not coincide with the contact plate, and the projection of the ceramic ring on the plane of the contact plate does not coincide with the contact plate, and the ceramic ring is used to cover the end of the welding stud, therefore, during the process of bringing the welding stud closer to the contact plate by the welding gun... Both the ceramic ring and the welding stud can pass through the contact plate, and the welding stud can pass through the pressure plate. Before the welding gun is started, the contact plate will be in contact with the welding surface. Since the distance between the pressure plate and the side of the contact plate away from the welding gun nozzle is equal to the length of the ceramic ring, the ceramic ring will eventually be fixed between the pressure plate and the welding surface. On the one hand, the ceramic ring can fix the welding stud, ensuring that the welding position of the welding stud will not shift, thus improving the welding quality of the welding stud. On the other hand, the end of the welding stud and the side of the contact plate away from the welding gun nozzle are on the same plane, so that the end of the welding stud can contact the welding surface. Moreover, the plane where the contact plate is located is perpendicular to the axis of the welding stud, which is equivalent to the axis of the welding stud being perpendicular to the welding surface. This can improve the perpendicularity of the welding stud during welding, improve the fit between the end of the welding stud and the welding surface, thereby making the end face of the welding stud completely welded, improving the welding quality and the pass rate of the welding stud.

[0026] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0027] Reference Figure 1 , Figure 1This is a schematic diagram of the welding alignment device provided in an embodiment of this application. It is applied to a welding torch 100, with a welding torch nozzle 110 at its end. The nozzle 110 is used to mount welding studs (not shown in the figure). The axis of the welding studs and the axis of the welding torch nozzle 110 are on the same straight line. The welding alignment device includes:

[0028] Support column 200, one end of which is movably connected to welding gun 100, and the length direction of support column 200 is parallel to the axis of welding gun nozzle 110;

[0029] The contact plate 300 is fixed to the other end of the support column 200. The plane of the contact plate 300 is perpendicular to the length direction of the support column 200. The projection of the end of the welding stud on the plane of the contact plate 300 does not coincide with the contact plate 300.

[0030] A pressure plate 400 is fixed on the support column 200. The pressure plate 400 is located between the contact plate 300 and the welding nozzle 110. The pressure plate 400 is used to fix the ceramic ring (not shown in the figure). The ceramic ring is used to cover the end of the welding stud. The projection of the ceramic ring on the plane where the contact plate 300 is located does not coincide with the contact plate 300. The distance between the pressure plate 400 and the side of the contact plate 300 away from the welding nozzle 110 is equal to the length of the ceramic ring.

[0031] The welding gun 100 is used to pass the welding stud through the pressure plate 400 and approach the contact plate 300 until the end of the welding stud is on the same plane as the side of the contact plate 300 away from the welding gun nozzle 110.

[0032] The materials of the support column 200, contact plate 300 and pressure plate 400 can all be metal, and this embodiment of the present disclosure is not limited thereto.

[0033] The welding stud can be a shear stud or a stud, and the embodiments disclosed herein are not limited thereto.

[0034] It should be noted that the reference Figure 2 , Figure 2 The diagram below shows the structure of the welding nozzle provided in this application embodiment. The welding nozzle 110 has a circular cross-section and multiple slits 111 distributed around its circumference, which makes the welding nozzle 110 elastic and facilitates the installation and fixing of welding studs.

[0035] It should be noted that the welding gun 100 will only begin the welding process after the end of the welding stud contacts the welding surface.

[0036] It should be noted that the ceramic ring is placed on the welding surface beforehand. First, the welding stud needs to be installed on the welding gun nozzle 110. Then, the welding stud is aligned with the ceramic ring. Then, the pressure plate is moved towards the ceramic ring until the end of the welding stud is on the same plane as the side of the contact plate 300 away from the welding gun nozzle 110. Then, the welding gun 100 is started to complete the welding.

[0037] Based on this, a welding nozzle 110 is provided at the end of the welding gun 100. The welding nozzle 110 is used to install welding studs. The axis of the welding studs is collinear with the axis of the welding nozzle 110. Then, one end of the support column 200 is movably connected to the welding gun 100, the contact plate 300 is fixed to the other end of the support column 200, and the pressure plate 400 is fixed on the support column 200, with the pressure plate 400 located between the contact plate 300 and the welding nozzle 110. Since the length direction of the support column 200 is aligned with the axis of the welding nozzle 110... Parallel, and the plane of the contact plate 300 is perpendicular to the length direction of the support column 200. Therefore, the plane of the contact plate 300 is perpendicular to the axis of the welding torch nozzle 110, and consequently, the plane of the contact plate 300 is perpendicular to the axis of the welding stud. Since the projection of the end of the welding stud onto the plane of the contact plate 300 does not coincide with the contact plate 300, and the projection of the ceramic ring onto the plane of the contact plate 300 does not coincide with the contact plate 300, and the ceramic ring is used to cover the end of the welding stud, therefore, when passing through the welding torch 110... During the process of bringing the welding stud close to the contact plate 300, both the ceramic ring and the welding stud can pass through the contact plate 300, and the welding stud can pass through the pressure plate 400. Then, before the welding gun 100 is started, the contact plate 300 will be in contact with the welding plane. Since the distance between the pressure plate 400 and the side of the contact plate 300 away from the welding gun nozzle 110 is equal to the length of the ceramic ring, the ceramic ring will eventually be fixed between the pressure plate 400 and the welding plane. On the one hand, the ceramic ring can fix the welding stud, ensuring that the welding position of the welding stud will not shift, thus improving the welding quality of the welding stud. On the other hand, the end of the welding stud and the side of the contact plate 300 away from the welding gun nozzle 110 are on the same plane, so that the end of the welding stud can contact the welding plane. Moreover, the plane where the contact plate 300 is located is perpendicular to the axis of the welding stud, which is equivalent to the axis of the welding stud being perpendicular to the welding plane. This can improve the perpendicularity of the welding stud during welding, improve the fit between the end of the welding stud and the welding plane, thereby making the end face of the welding stud welded completely, improving the welding quality and the pass rate of the welding stud.

[0038] Additionally, refer to again Figure 1 In some embodiments of this application, the contact plate 300 is provided with a first notch 310 on the side near the welding stud, and the pressure plate 400 is provided with a second notch 410 on the side near the welding stud.

[0039] The outline of the first notch 310 can be the same as the outer outline of the ceramic ring, so that the projection of the ceramic ring on the plane of the contact plate 300 does not coincide with the contact plate 300. The ceramic ring can just pass through the first notch 310, and the first notch 310 also has a fixing effect on the ceramic ring, further improving the stability of the welding.

[0040] The outline of the second notch 410 can be the same as the outer outline of the end of the welding stud, so that the welding stud can pass through the second notch 410, while the ceramic ring cannot pass through the second notch 410.

[0041] Based on this, the contact plate 300 is provided with a first notch 310 on the side near the welding stud, and the pressure plate 400 is provided with a second notch 410 on the side near the welding stud. Both the ceramic ring and the welding stud can pass through the first notch 310, and the welding stud can pass through the second notch 410, while the ceramic ring cannot pass through the second notch 410. As the welding stud passes through the pressure plate 400 and approaches the contact plate 300, the ceramic ring can be firmly fixed, ensuring that the welding position of the welding stud will not shift, thereby improving the welding quality of the welding stud and the inspection pass rate.

[0042] Additionally, refer to again Figure 1 In some embodiments of this application, the first notch 310 and the second notch 410 are both symmetrical polygonal notches.

[0043] The specific shape of the polygonal notch can be varied. For example, the polygonal notch can be a regular square notch, a regular pentagonal notch, a regular hexagonal notch, etc. The embodiments of this application are not limited here.

[0044] Based on this, both the first notch 310 and the second notch 410 are symmetrical polygonal notches. For the first notch 310, the ceramic ring will not be completely fitted with the first notch 310, and the welding stud will not be completely fitted with the second notch 410. This facilitates the installation of the welding stud and reduces the difficulty of the ceramic ring passing through the first notch 310, thereby reducing the preparation time before welding and improving the efficiency of welding.

[0045] Additionally, refer to again Figure 1 In some embodiments of this application, the pressure plate 400 is parallel to the contact plate 300.

[0046] Based on this, the pressure plate 400 is parallel to the contact plate 300, which means that the plane of the pressure plate 400 is also perpendicular to the support column 200. Since the welding stud needs to pass through the pressure plate 400, the verticality of the welding stud is further improved to improve the welding quality of the welding stud and the inspection pass rate.

[0047] Additionally, refer to again Figure 1In some embodiments of this application, the side surface area of ​​the contact plate 300 is larger than the side surface area of ​​the pressure plate 400.

[0048] Based on this, since the side area of ​​the contact plate 300 is larger than that of the pressure plate 400, the contact area between the contact plate 300 and the welding plane is larger, which makes the contact plate 300 more stable when it is in contact with the welding plane and will not easily shift. This ensures that the welding position of the stud will not shift, and can effectively improve the welding quality and inspection pass rate of the stud.

[0049] Additionally, when the contact plate 300 is in contact with the welding plane, ensure that the support column 200 is perpendicular to the welding plane, so that the axis of the weld stud is perpendicular to the welding plane, thereby improving the welding quality of the weld stud. Also, refer again... Figure 1 In some embodiments of this application, the number of support columns 200 is two, and the two support columns 200 are symmetrically arranged on both sides of the welding gun 100.

[0050] The connection points between the two support columns 200 and the pressure plate 400 are symmetrical about the axis of symmetry of the second notch 410, and the connection points between the two support columns 200 and the contact plate 300 are symmetrical about the axis of symmetry of the first notch 310.

[0051] Based on this, there are two support columns 200, which are symmetrically arranged on both sides of the welding gun 100. This can improve the balance of the welding gun 100 during the welding process, thereby improving the welding stability, the welding quality of the weld studs, and the inspection pass rate.

[0052] Additionally, refer to again Figure 1 In some embodiments of this application, the side of the contact plate 300 away from the weld stud is parallel to the plane containing the two support columns 200.

[0053] Based on this, the side of the contact plate 300 away from the welding stud is parallel to the plane where the two support columns 200 are located. The side of the contact plate 300 away from the welding stud can be in contact with the welding plane to ensure that the welding gun 100 will not deviate and that the welding position of the welding stud will not deviate, thereby improving the welding quality of the welding stud and the pass rate of inspection.

[0054] Additionally, refer to again Figure 1 In some embodiments of this application, one end of the support column 200 that is movably connected to the welding gun 100 passes through the welding gun 100 and extends in a direction away from the contact plate 300.

[0055] It should be noted that when it is necessary to adapt to welding studs and ceramic rings of different specifications, the distance between the welding torch nozzle 110 and the contact plate 300 needs to be adjusted, which can be achieved by adjusting the support column 200 extending away from the contact plate 300.

[0056] Based on this, the end of the support column 200 that is movably connected to the welding gun 100 passes through the welding gun 100 and extends away from the contact plate 300, so that the welding gun 100 can be adapted to welding studs and ceramic rings of different specifications, thereby improving the versatility of the welding gun 100.

[0057] Additionally, refer to again Figure 1 In some embodiments of this application, the support column 200 is located between the welding torch nozzle 110 and the handle 120 of the welding torch 100.

[0058] Therefore, since the welding gun 100 requires holding the handle 120, the center of gravity of the welding gun 100 is between the handle 120 and the main body of the welding nozzle 110. By positioning the support column 200 between the welding nozzle 110 and the handle 120 of the welding gun 100, the center of gravity can be balanced, maintaining stability during the welding process, improving the welding quality of the weld studs, increasing the pass rate of inspection, reducing the physical exertion of workers, and improving the welding efficiency of workers.

[0059] Additionally, refer to again Figure 1 In some embodiments of this application, a support column 200 passes through a welding gun 100. A first positioning ring 130 is provided on the side of the welding gun 100 near the connecting plate. The support column 200 passes through the first positioning ring 130. A second positioning ring 140 is wrapped around the support column 200. The second positioning ring 140 is located between the welding gun 100 and the connecting plate. The first positioning ring 130 is connected to the second positioning ring 140 through a return spring (not shown in the figure).

[0060] It should be noted that during the welding process, the welding gun 100 needs to press the welding stud towards the welding plane until the contact surface is closest to the welding gun nozzle 110. At this point, the return spring is compressed to its maximum extent. When the welding is completed, during the process of separating the contact surface from the welding plane, the return spring releases its elastic potential energy and restores the distance between the contact plate 300 and the welding gun nozzle 110 to the size before welding.

[0061] Based on this, the support column 200 passes through the welding gun 100. A first positioning ring 130 is provided on the side of the welding gun 100 near the connecting plate. The support column 200 passes through the first positioning ring 130 and a second positioning ring 140 is wrapped around the support column 200. The second positioning ring 140 is located between the welding gun 100 and the connecting plate. The first positioning ring 130 is connected to the second positioning ring 140 through a return spring. For welding studs of different lengths installed on the welding gun nozzle 110, the distance from the end of the welding stud to the welding plane is different. Since the support column 200 and the welding gun 100 are movably connected, welding studs of different lengths can all contact the welding plane to complete the welding. When the welding is completed, there is no need to manually reset the contact plate 300. The return spring can automatically reset the contact plate 300, which can reduce the number of operations in the welding process and thus improve the welding efficiency.

[0062] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A welding positioning device, characterized in that, An application to a welding torch, wherein the end of the welding torch is provided with a welding torch nozzle for mounting welding studs, the axis of the welding studs and the axis of the welding torch nozzle are collinear, the welding alignment device comprising: A support column, one end of which is movably connected to the welding gun, and the length direction of the support column is parallel to the axis of the welding gun nozzle; A contact plate is fixed to the other end of the support column. The plane of the contact plate is perpendicular to the length direction of the support column. The projection of the end of the welding stud on the plane of the contact plate does not coincide with the contact plate. A pressure plate is fixed on the support column. The pressure plate is located between the contact plate and the welding torch nozzle. The pressure plate is used to fix the ceramic ring. The ceramic ring is used to cover the end of the welding stud. The projection of the ceramic ring on the plane of the contact plate does not coincide with the contact plate. The distance between the pressure plate and the side of the contact plate away from the welding torch nozzle is equal to the length of the ceramic ring. The welding gun is used to pass the welding stud through the pressure plate and close to the contact plate until the end of the welding stud is on the same plane as the side of the contact plate away from the welding gun nozzle.

2. The welding alignment device according to claim 1, characterized in that, The contact plate has a first notch on the side near the welding stud, and the pressure plate has a second notch on the side near the welding stud.

3. The welding alignment device according to claim 2, characterized in that, Both the first gap and the second gap are symmetrical polygonal gaps.

4. The welding alignment device according to claim 1, characterized in that, The pressure plate is parallel to the contact plate.

5. A welding alignment device according to claim 1, characterized in that, The side surface area of ​​the contact plate is larger than the side surface area of ​​the pressure plate.

6. A welding alignment device according to claim 1, characterized in that, The number of support columns is two, and the two support columns are symmetrically arranged on both sides of the welding gun.

7. A welding alignment device according to claim 6, characterized in that, The side of the contact plate away from the weld stud is parallel to the plane containing the two support columns.

8. A welding alignment device according to claim 1, characterized in that, One end of the support column, which is movably connected to the welding gun, passes through the welding gun and extends away from the contact plate.

9. A welding alignment device according to claim 1, characterized in that, The support column is located between the welding torch nozzle and the handle of the welding torch.

10. A welding alignment device according to claim 1, characterized in that, The support column passes through the welding gun, and a first positioning ring is provided on the side of the welding gun near the connecting plate. The support column passes through the first positioning ring, and a second positioning ring is wrapped around the support column. The second positioning ring is located between the welding gun and the connecting plate, and the first positioning ring is connected to the second positioning ring through a return spring.

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