Welding positioning tool for handheld welding gun

Abstract

The utility model provides a welding positioning tool for a handheld welding gun, the handheld welding gun comprises a transducer, a transducer shell and a welding head, and the welding positioning tool comprises a fixed base sleeved on the transducer shell; the fixing supports are installed on the fixing base, each fixing support is provided with an L-shaped outline and comprises a first arm part and a second arm part which perpendicularly extend, the fixing supports are connected with the fixing base through the second arm parts, and first installation holes extending in the length direction of the first arm parts are formed in the first arm parts; the positioning support is installed on the inner side of the fixing support and comprises a positioning head and a pair of third arm parts extending from the rear end of the positioning head, second installation holes are formed in the third arm parts, the positioning support can be installed on the fixing support by inserting screws into the first installation holes and the second installation holes in sequence, and then the welding depth can be adjusted. According to the utility model, the welding depth of the handheld welding gun can be accurately adjusted, and good welding quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of handheld welding guns, and more particularly to a welding positioning tool for a handheld welding gun. Background Art

[0002] Currently, handheld welding guns lack precise positioning. If equipment malfunctions in the early stages of project development or during mass production, precision production cannot be performed, leading to problems such as reduced product quality or insufficient performance. In the early stages of project development, welding equipment is generally not yet accepted or is being debugged, making effective welding impossible. When delivering samples to customers, manual welding is the only option. However, to meet welding performance requirements, the welding depth is generally large, and weld marks are likely to appear on the surface of the part. If there are no weld marks on the surface, the welding performance may not meet the requirements, causing the relevant experiments to fail. Customers will complain or resubmit samples, resulting in increased costs. During mass production, if welding equipment malfunctions and welding cannot be performed, without effective positioning tooling, welding quality cannot be controlled, resulting in customer complaints and even production stoppages. Utility Model Content

[0003] The purpose of the utility model is to provide a welding positioning tool for a handheld welding gun, so as to solve the problems in the prior art that the manual welding depth cannot be measured and the welding depth cannot be quantitatively controlled, resulting in weld marks or insufficient welding pulling force during welding.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] Provided is a welding positioning tool for a handheld welding gun, the handheld welding gun comprising: a transducer, a transducer housing mounted on the outside of the transducer, and a welding head connected to the transducer, the welding positioning tool comprising: a fixed base sleeved on the outside of the transducer housing and fixedly connected thereto; a pair of fixing brackets mounted on the fixing base, the fixing bracket having an L-shaped profile, comprising a first arm extending parallel to the welding head, and a second arm extending perpendicular to the first arm, the fixing bracket being connected to the fixing base via the second arm, the first arm having a first mounting hole extending along its length; and a positioning bracket mounted on the inner side of the fixing bracket, comprising: a positioning head extending circumferentially around the welding head, and a pair of third arms extending from the rear end of the positioning head, the third arm having a second mounting hole, the positioning bracket being mounted on the fixing bracket by inserting screws into the first mounting hole and the second mounting hole in sequence; wherein the welding depth can be adjusted by adjusting the position of the positioning bracket on the fixing bracket.

[0006] Preferably, the first mounting hole on the first arm is in an elongated strip shape, and the second mounting hole on the third arm is in a circular shape, so that the position of the positioning bracket on the fixing bracket can be adjusted along its length direction.

[0007] Preferably, a scale is provided on the side surface of the third arm portion of the positioning bracket to facilitate adjustment of the welding depth.

[0008] Preferably, the welding depth adjustment accuracy of the welding positioning tool reaches 0.1 mm.

[0009] Preferably, the positioning head of the positioning bracket has a positioning surface for positioning, and the shape of the positioning surface is determined according to the shape of the surface to be welded.

[0010] Preferably, the fixed base is formed by splicing two fixed base half rings, and the joint between the two is connected by bolts.

[0011] Preferably, the fixed base half ring has a penetrating base mounting hole to facilitate the connection between the fixed bracket and the fixed base.

[0012] According to the welding positioning tool for a handheld welding gun provided by the utility model, accurate measurement and control of the manual welding depth is achieved, the welding depth is quantitatively controlled, the problems of weld marks or insufficient welding pull-out force during welding are avoided, and stable manual welding quality is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a welding positioning tool and a handheld welding gun provided by the utility model;

[0014] Figure 2 It is a structural diagram of a fixed base;

[0015] Figure 3 It is a structural diagram of the fixed bracket;

[0016] Figure 4 1. It is a structural diagram of the positioning bracket;

[0017] Figure 5 It is a schematic diagram for precisely adjusting the welding depth. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0021] like Figure 1 The figure shows a welding positioning fixture for a handheld welding gun according to a preferred embodiment of the present invention. It should be understood that handheld welding guns are conventional technology, and the purpose of the present invention is to provide a welding positioning fixture to assist a handheld welding gun in accurately positioning the welding depth. The handheld welding gun comprises a transducer (not shown), a transducer housing 10, and a welding head 20. The transducer housing 10 is mounted on the outside of the transducer, and the welding head 20 is connected to the head of the transducer. The welding positioning fixture provided by the present invention comprises a fixed base 1, a pair of fixed brackets 2, and a positioning bracket 3.

[0022] like Figure 2 As shown, the fixed base 1 is composed of two fixed base half-rings 11, each comprising a semicircular body. The joint has a through-hole 12 for connecting the two by inserting bolts. The bodies of the fixed base half-rings 11 also have through-holes 13 for mounting the fixed bracket 2 to the fixed base 1. It should be understood that the circumferential dimensions of the fixed base 1 are determined by the dimensions of the transducer housing 10. Therefore, corresponding welding positioning fixtures can be designed for handheld welding guns of different sizes.

[0023] like Figure 3The figure shows one of a pair of fixed brackets 2. It should be understood that the two fixed brackets are identical in structure and are symmetrically mounted on the fixed base 1. The fixed bracket 2 has an L-shaped profile, including a first arm 21 and a second arm 22 extending perpendicularly to each other. The first arm 21 extends parallel to the welding head 20. The first arm 21 has a first mounting hole 23 extending along its length, and the second arm 22 has a fixed bracket mounting hole 24. The fixed bracket 2 can be installed on the fixed base 1 by sequentially inserting screws into the fixed bracket mounting hole 24 and the base mounting hole 13.

[0024] Combine Figure 1 、 Figure 4 As shown, the positioning bracket 3 includes a positioning head 31 that extends circumferentially around the welding head 20, and a pair of third arms 32 extending from the rear end of the positioning head 31. The third arms 32 have second mounting holes 33. The positioning bracket 3 can be installed inside the fixed bracket 2 by inserting screws 4 into the first mounting holes 23 and the second mounting holes 33 in sequence. A scale 34 is provided on the side of the third arms 32 to facilitate adjustment of the welding depth.

[0025] like Figure 3 As shown, a positioning bracket guide groove 25 is further provided on the mating surface of the first arm portion 21 and the third arm portion 32 to facilitate the directional sliding of the positioning bracket 3 relative to the fixed bracket 2 .

[0026] Combine Figures 3 to 5 As shown, the first mounting hole 23 on the fixed bracket 2 is elongated, and the second mounting hole 33 on the positioning bracket 3 is circular. Therefore, when the positioning bracket 3 is mounted on the fixed bracket 2 using screws 4, the position of the positioning bracket 3 on the fixed bracket 2 can be adjusted. The scale 34 on the side of the third arm 32 allows for precise adjustment of the welding depth. According to this preferred embodiment, the welding positioning fixture can achieve a welding depth adjustment accuracy of up to 0.1 mm.

[0027] According to the present invention, the positioning head 31 of the positioning bracket 3 has a positioning surface 35 for positioning. The shape of the positioning surface can be determined according to the shape of the surface to be welded to adapt to different welding environments.

[0028] like Figure 5 As shown, first, when the positioning surface 35 of the positioning bracket 3 is flush with the end of the welding head 20, the distance L1 between the rear end A of the positioning head 31 and the front end B of the fixing bracket 2 is measured at this time; then, the positioning bracket 3 is adjusted to the desired position through the long first mounting hole 23, the screw 4 is installed, and then the distance L2 between the rear end A of the positioning head 31 and the front end B of the fixing bracket 2 is measured at this time. The difference between L1 and L2 is the welding depth.

[0029] In summary, the welding positioning fixture provided by the present invention comprises a positioning bracket 3 mounted on a fixed bracket 2. The positioning bracket 3 can be moved back and forth on the fixed bracket 2 to adjust the welding depth. The positioning bracket 3 is engraved with a scale, allowing the welding depth to be adjusted during pre-assembly and then accurately measured with a caliper to confirm the welding depth. The present invention achieves precise measurement and control of manual welding depth, enabling quantitative control of the welding depth, avoiding weld marks or insufficient weld pull-out force during welding, and ensuring stable manual welding quality.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Various modifications are possible to the above embodiments of the present invention. Any simple, equivalent changes and modifications made in accordance with the claims and description of the present invention fall within the scope of protection of the present invention. Anything not fully described in this invention represents conventional technology.

Claims

1. A welding positioning tool for a handheld welding gun, the handheld welding gun comprising: A transducer, a transducer housing mounted on the outside of the transducer, and a welding head connected to the transducer, wherein the welding positioning tool comprises: A fixed base sleeved on the outside of the transducer housing and fixedly connected thereto; a pair of fixing brackets mounted on the fixing base, each fixing bracket having an L-shaped profile and comprising a first arm portion extending parallel to the welding head and a second arm portion extending perpendicular to the first arm portion, wherein the fixing bracket is connected to the fixing base via the second arm portion, and the first arm portion has a first mounting hole extending along its length; and A positioning bracket mounted on the inner side of the fixing bracket comprises: a positioning head extending circumferentially around the welding head, and a pair of third arms extending from the rear end of the positioning head, wherein the third arms have second mounting holes, and the positioning bracket can be mounted on the fixing bracket by inserting screws into the first mounting holes and the second mounting holes in sequence; The welding depth can be adjusted by adjusting the position of the positioning bracket on the fixing bracket.

2. The welding positioning tool according to claim 1, characterized in that: The first mounting hole on the first arm is in an elongated strip shape, and the second mounting hole on the third arm is in a circular shape, so that the position of the positioning bracket on the fixing bracket can be adjusted along its length direction.

3. The welding positioning tool according to claim 2, characterized in that: The side surface of the third arm of the positioning bracket is provided with a scale to facilitate accurate adjustment of the welding depth.

4. The welding positioning tool according to claim 3, characterized in that: The welding depth adjustment accuracy of the welding positioning tool reaches 0.1mm.

5. The welding positioning tool according to claim 1, characterized in that: The positioning head of the positioning bracket has a positioning surface for positioning, and the shape of the positioning surface is determined according to the shape of the surface to be welded.

6. The welding positioning tool according to claim 1, characterized in that: The fixed base is formed by splicing two fixed base half rings, and the splicing point of the two is connected by bolts.

7. The welding positioning tool according to claim 1, characterized in that: The fixed base half ring is provided with a penetrating base mounting hole to facilitate the connection between the fixed bracket and the fixed base.

Images