Welding seam forming auxiliary device

Abstract

The utility model discloses a welding seam forming auxiliary device, which comprises a welding seam forming block and a fastening mechanism, a fastening part of the fastening mechanism is detachably connected with the welding seam forming block, the welding seam forming block is arranged on the inner side of a part to be welded, and a welding space is formed by the welding seam forming block and the part to be welded. The welding seam forming auxiliary device can effectively improve the strength and the stability of a welding seam, greatly reduces the defects of pits, air holes, undercuts and the like on the back face of the welding seam, enables the appearance quality of the back face of the welding seam to be remarkably improved, and meets the high-standard appearance requirement of the rail transit industry.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a weld formation auxiliary device. Background Technology

[0002] In the manufacturing process of sheet metal enclosures in the rail transit industry, welding is a critical process. The quality of the weld not only affects the structural strength of the enclosure but also significantly impacts its appearance and overall quality. Currently, controlling the back-side forming of the weld during sheet metal enclosure welding is quite difficult, mainly due to the following problems: 1. Difficulty in controlling the back-side reinforcement: Manual welding cannot precisely guarantee that the back-side reinforcement meets the standard requirements. Insufficient reinforcement may lead to insufficient weld strength, while excessive reinforcement will affect subsequent grinding and painting processes, increasing production costs; 2. Poor appearance quality: During the welding process, due to the lack of effective back-side forming assistance, defects such as pits, porosity, and undercut are prone to appear on the back of the weld, seriously affecting the appearance quality of the sheet metal enclosure.

[0003] Therefore, how to effectively control the weld reinforcement on the back side, improve the appearance quality, and increase welding efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a weld formation auxiliary device, which can effectively improve the strength and stability of the weld, greatly reduce defects such as pits, pores, and undercut on the back of the weld, and significantly improve the appearance quality of the back of the weld, meeting the high standard appearance requirements of the rail transit industry.

[0005] The technical solution provided by this utility model is as follows:

[0006] A weld seam forming auxiliary device includes a weld seam forming block and a fastening mechanism. The fastening part of the fastening mechanism is detachably connected to the weld seam forming block. The weld seam forming block is disposed inside the part to be welded and forms a welding space with the part to be welded.

[0007] Preferably, the fastening mechanism includes a bracket and a fastening part disposed on the bracket. The fastening part includes two fastening plates disposed opposite to each other, namely fastening plate one and fastening plate two. Fastening plate one contacts and fixes the weld forming block, and fastening plate two contacts and fixes the outside of the part to be welded.

[0008] Preferably, the fastening plate one is provided with fastening screws, the fastening plate two is provided with fastening bolts, and the weld forming block is provided with threaded holes for use with the screws.

[0009] Preferably, the fastening plate is provided with an adjustment hole, and the fastening screw is disposed in the adjustment hole and can slide along the adjustment hole.

[0010] Preferably, the bracket is a square plate with a hole in the middle, and a groove communicating with the bracket is provided on one side of the square plate, and the fastening part is provided at the groove.

[0011] Preferably, the weld forming block has a chamfer on the upper part of the end near the part to be welded.

[0012] This invention has the following advantages over the prior art:

[0013] This utility model's weld seam forming auxiliary device connects the fastening part of the fastening mechanism to the weld seam forming block in a detachable manner. By replacing the weld seam forming block, the weld seam height can be precisely controlled within the standard range, with a deviation within ±0.5mm. This effectively improves the strength and stability of the weld seam, significantly reduces defects such as pits, porosity, and undercut on the back of the weld seam, and significantly improves the appearance quality of the back of the weld seam, meeting the high appearance standards of the rail transit industry. Furthermore, this utility model can adapt to the complex shapes of sheet metal cabinets in the rail transit industry by adjusting the fastening mechanism, making the weld seam forming auxiliary device highly applicable. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the weld formation auxiliary device in an embodiment of the present invention;

[0016] Figure 2 This is a side view of the weld formation auxiliary device in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the weld formation auxiliary device in use according to an embodiment of the present invention.

[0018] Figure label:

[0019] 1. Weld seam forming block; 2. Fastening mechanism; 21. Bracket; 22. Fastening plate one; 221. Fastening screw; 222. Adjustment hole; 23. Fastening plate two; 231. Fastening bolt. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 , 2 As shown in Figure 3, this utility model embodiment provides a weld seam forming auxiliary device, including a weld seam forming block 1 and a fastening mechanism 2. The fastening part of the fastening mechanism 2 is detachably connected to the weld seam forming block 1. The weld seam forming block 1 is disposed on the inner side of the part to be welded and forms a welding space with the part to be welded.

[0022] In this embodiment, the weld forming block 2 is made of different materials from the welding material and the welding material. For example, the welding material is an aluminum part, and the weld forming block 2 is a stainless steel part. There will be no fusion between the weld forming block 2 and the welding material.

[0023] In this embodiment, the fastening mechanism 2 includes a bracket 21 and a fastening part disposed on the bracket 21. The fastening part includes two fastening plates disposed opposite to each other, namely fastening plate one 22 and fastening plate two 23. Fastening plate one 22 contacts and fixes the weld forming block 1, and fastening plate two 23 contacts and fixes the outside of the part to be welded.

[0024] In this embodiment, fastening plate 1 22 is provided with fastening screws 221, fastening plate 23 is provided with fastening bolts 231, and weld forming block 1 is provided with threaded holes for use with the screws.

[0025] In this embodiment, the fastening plate 22 is provided with an adjustment hole 222, and the fastening screw 221 is disposed in the adjustment hole 222 and can slide along the adjustment hole.

[0026] In this embodiment, the bracket 21 is a square plate with a hole in the middle. One side of the square plate is provided with a groove that communicates with it. The fastening part is provided at the groove. The bracket 21 can also be a clamping device with other existing and disclosed structures.

[0027] In this embodiment, the upper part of the weld forming block 1 near the part to be welded is provided with a chamfer, and the chamfer provides space for the back weld forming.

[0028] The usage process of the weld formation auxiliary device in this embodiment is as follows:

[0029] The shape and specifications of the weld forming block 1 can be designed in various ways (depending on the specific dimensions of the weld itself and the shape requirements near the weld, the weld forming block 1 can be designed into multiple replaceable structures with different thicknesses and shapes). Based on the shape and size of the part to be welded on the sheet metal cabinet, a weld forming block 1 with a suitable curvature is selected and installed onto the appropriate fastening mechanism 2. The weld forming block 1 is placed on the back of the part to be welded on the sheet metal cabinet, and the length of the fastening bolts 231 is adjusted to firmly fix the weld forming auxiliary device on the cabinet. The welder performs welding operations from the front, and the weld is formed with the assistance of the weld forming auxiliary device (the welding wire fuses with the material, the solution in the molten pool penetrates into the welding space formed by the weld forming block and the product, and after the solution cools, the weld is formed under the constraint of the welding space). The weld reinforcement meets the standard, and the appearance is aesthetically pleasing. After welding is completed, the weld forming block 1 can be removed, and a suitable weld forming block 1 of appropriate specifications can be selected for the next welding operation.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A weld shaping aid, characterized in that, The application relates to a welding seam forming block and a fastening mechanism, wherein the fastening part of the fastening mechanism is detachably connected with the welding seam forming block, the welding seam forming block is arranged on the inner side of a welding part and forms a welding space with the welding part.

2. The weld forming aid of claim 1, wherein, The fastening mechanism comprises a support and a fastening part arranged on the support, the fastening part comprises two oppositely arranged fastening plates, namely a fastening plate one and a fastening plate two, the fastening plate one is in contact with and fixed with the welding seam forming block, and the fastening plate two is in contact with and fixed with the outer part of the welding part.

3. The weld forming aid of claim 2, wherein, A fastening screw is arranged on the fastening plate one, a fastening bolt is arranged on the fastening plate two, and a threaded hole matched with the screw is arranged on the welding seam forming block.

4. The weld forming aid of claim 3, wherein, An adjusting hole is arranged on the fastening plate one, and the fastening screw is arranged in the adjusting hole and can slide along the adjusting hole.

5. The seam forming aid of any one of claims 2-4, wherein, The support is a square plate with a hole in the middle, a groove is arranged on one side of the square plate and is in communication with the hole, and the fastening part is arranged at the groove.

6. The seam forming aid of any one of claims 1-4, wherein, An inverted angle is arranged on the upper part of the end close to the welding part of the welding seam forming block.

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