Nut welding device

Abstract

The application relates to the technical field of welding equipment, in particular to a nut welding device which comprises a welding mechanism and an adjustable positioning mechanism, wherein the adjustable positioning mechanism comprises a fixed base, an adjustable positioning structure arranged on the fixed base, an adjustable centering structure and an adjustable clamping structure for clamping a frame; the adjustable positioning structure comprises positioning support blocks arranged on the fixed base, a plurality of positioning connecting blocks arranged on the positioning support blocks and a plurality of adjustable positioning blocks arranged on the positioning connecting blocks, the plurality of adjustable positioning blocks have positioning ends facing the frame, the shape of the positioning ends is matched with the shape of the frame, and the welding mechanism faces the adjustable positioning structure. The position of the positioning end can be adjusted according to the shape of the frame, so that the position of the positioning end corresponds to the position of the frame, the frame is supported, the nut welding device can be quickly adjusted and matched according to the shape and size of the frame, the production efficiency of the frame is improved, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and in particular to a nut welding device. Background Technology

[0002] After the car frame is manufactured, nuts need to be welded to specific locations on its surface to enable subsequent splicing and assembly processes. With the development of the automotive industry, car frames have diversified designs, and their shapes and sizes are constantly changing. Conventional nut welding devices can only weld a few models. When the size and shape of the car frame change in many places, conventional nut welding devices are difficult to adapt to, making it difficult to position and fix the car frame during the welding process. The welding process requires repeated adjustments and even the customization of special molds, which is cumbersome and has high production costs. Utility Model Content

[0003] The purpose of this application is to provide a nut welding device, which aims to improve the lack of adaptability of nut welding devices in related technologies, increase the versatility of the nut welding device, and reduce production costs.

[0004] A nut welding device includes a welding mechanism and an adjustable positioning mechanism. The adjustable positioning mechanism includes a fixed base, an adjustable positioning structure disposed on the fixed base, an adjustable centering structure, and an adjustable clamping structure for clamping a frame. The adjustable positioning structure includes a positioning support block disposed on the fixed base, a plurality of positioning connecting blocks disposed on the positioning support block, and a plurality of adjustable positioning blocks disposed on the positioning connecting blocks. The plurality of adjustable positioning blocks have positioning ends facing the frame, and the shape of the positioning ends is adapted to the shape of the frame. The welding mechanism is oriented towards the adjustable positioning structure.

[0005] Furthermore, the positioning end has a groove, and a first positioning post for cooperating with the positioning frame hole is provided in the groove.

[0006] Furthermore, the adjustable centering structure includes a plurality of centering mounting seats disposed on the fixed base, the plurality of centering mounting seats having centering columns, and the plurality of centering columns surrounding each other to form a centering cavity for accommodating the frame.

[0007] Furthermore, one end of each of the centering columns is fixedly connected to the centering mounting base, and the other end of each of the centering columns is inclined to form an opening.

[0008] Furthermore, the adjustable clamping structure includes an upper fixed base disposed above the adjustable positioning structure, an upper clamping assembly disposed on the upper fixed base, and a lower clamping assembly; the frame is located between the upper clamping assembly and the lower clamping assembly.

[0009] Furthermore, the upper clamping assembly includes an upper connecting block slidably connected to the upper fixed base, an upper clamping block disposed on the upper connecting block, an upper clamping drive for driving the upper connecting block, and an upper clamping block; the upper clamping block has an upper clamping end, and the shape and size of the upper clamping block are adapted to the frame.

[0010] Furthermore, the upper clamping end is also provided with a second positioning post for cooperating with the frame hole.

[0011] Furthermore, the lower clamping assembly includes a lower connecting block hinged to the upper fixed base, a lower clamping block disposed on the lower connecting block, and a lower clamping drive for driving the lower connecting block; the lower clamping block has a lower clamping end, the shape and size of which are adapted to the frame.

[0012] The beneficial effects of this application are: This application discloses a nut welding device. The nut welding device incorporates an adjustable positioning mechanism. By moving the positioning connecting block and the adjustable positioning block of the adjustable positioning structure, the position of the positioning end can be adjusted according to the shape of the frame, thereby aligning the position of the positioning end with the position of the frame and supporting the frame. Simultaneously, during the placement of the frame into the welding device, an adjustable centering structure assists in centering, and an adjustable clamping structure clamps the frame after it is placed under the support of the adjustable positioning structure. This allows the nut welding device to be quickly adjusted and adapted to the shape and size of the frame without requiring significant adjustments or custom molds, thus improving frame production efficiency and reducing production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a nut welding device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the adjustable positioning mechanism in the embodiments of this application; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is another structural schematic diagram of the adjustable positioning mechanism in the embodiments of this application.

[0014] Explanation of reference numerals in the attached figures: 1. Welding mechanism; 11. Nut welding machine; 2. Adjustable positioning mechanism; 21. Fixed base; 22. Adjustable positioning structure; 221. Positioning support block; 222. Positioning connecting block; 223. Adjustable positioning block; 2231. Positioning end; 224. First positioning column; 23. Adjustable centering structure; 231. Centering mounting base; 232. Centering column; 24. Adjustable clamping structure; 241. Upper fixed base; 242. Upper clamping assembly; 2421. Upper connecting block; 2422. Upper clamping block; 24221. Second positioning column; 2423. Upper clamping drive; 2424. Upper clamping block; 243. Lower clamping assembly; 2431. Lower connecting block; 2432. Lower clamping block; 2433. Lower clamping drive. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0016] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0018] Reference Figure 1 as well as Figure 2 This application proposes a nut welding device, including a welding mechanism 1 and an adjustable positioning mechanism 2. The adjustable positioning mechanism 2 includes a fixed base 21, an adjustable positioning structure 22 disposed on the fixed base, an adjustable centering structure 23, and an adjustable clamping structure 24 for clamping a frame. The adjustable positioning mechanism 2 is used to adapt, position, and support the frame. After the frame is fixed in the adjustable positioning mechanism 2, the welding mechanism 1 welds the frame.

[0019] Specifically, the welding mechanism 1 includes two nut welding machines 11. Each nut welding machine 11 has a welding end facing the adjustable positioning mechanism 2. The welding end is driven to rise and fall by a cylinder. After the frame is installed in the adjustable positioning mechanism 2, the welding end descends to weld the frame. The nut welding machine 11 is existing technology and can be purchased. Its specific structure and working principle will not be described in detail.

[0020] There are two sets of adjustable positioning mechanisms 2 arranged symmetrically, each set corresponding to one nut welding machine 11. Taking a single set of adjustable positioning mechanisms 2 as an example, the fixed seat 21 is used to support each structure. The fixed seat 21 is fixed to the ground by a support or column (not shown in the figure). The welding mechanism 1 faces the adjustable positioning structure 22. The adjustable positioning structure 22 includes a positioning support block 221 set on the fixed seat 21, a plurality of positioning connecting blocks 222 set on the positioning support block 221, and a plurality of adjustable positioning blocks 223 set on the positioning connecting blocks 222. The plurality of adjustable positioning blocks 223 have positioning ends 2231 facing the frame, and the shape of the positioning ends 2231 is adapted to the shape of the frame.

[0021] In this embodiment, the positioning support block 221 is connected to the fixed base 21 by a threaded connection to achieve detachable connection and position adjustment. The fixed base 21 has multiple adjustment threaded holes for cooperating with the positioning support block 221, and the positioning support block 221 has a support block through hole for cooperating with the adjustment through hole. When it is necessary to adjust the position of the positioning support block 221, the positioning support block 221 is placed in the corresponding adjustment through hole position through the support block through hole, and then the positioning support block 221 is installed in the fixed base 21 by screws to complete the position adjustment of the positioning support block 221. For the convenience of production and manufacturing, the position adjustment method of the nut welding device is the same as the above-mentioned threaded connection method.

[0022] Similarly, several positioning connecting blocks 222 are connected sequentially by threaded connection to realize the position adjustment of the adjustable positioning block 223. The adjustable positioning block 223 is installed on the positioning connecting block 222 by threaded connection. The positioning end 2231 is located at the end of the adjustable positioning block 223 facing the frame. The shape of the positioning end 2231 is adapted to the shape of the frame, and the positioning end 2231 has an end face adapted to the shape of the frame positioning point. If the positioning end 2231 needs to support the planar frame part, the positioning end 2231 is set in a planar position; if the positioning end 2231 needs to support the protruding frame part, the positioning end 2231 is set in a protruding position to adapt to the frame.

[0023] Furthermore, some frames are designed with holes, and the adjustable positioning structure 22 can utilize these holes for positioning. Specifically, the positioning end 2231 has a groove, and a first positioning post 224 is provided in the groove to mate with the positioning frame hole. The first positioning post 224 is inserted into the groove and is interference-fitted with the groove. The first positioning post 224 has a fixed outer ring, and the first positioning post 224 is fixed in the groove by abutting against the fixed outer ring. By providing the first positioning post 224, the first positioning post 224 is detachably connected to the groove through an interference fit. When the frame is designed with holes, the frame holes can be utilized by inserting the first positioning post 224, thereby facilitating the positioning and fixing of the frame.

[0024] Reference Figure 2 as well as Figure 3 The adjustable centering mechanism includes several centering mounting seats 231 disposed on the fixed base 21. Each centering mounting seat 231 has a centering column 232, which together form a centering cavity for accommodating the frame. The lower end of each centering mounting seat 231 is threaded onto the fixed base 21 for position adjustment. The centering column 232, located at the upper end of the centering mounting seat 231, serves as a guide component and can be made of a smooth cylindrical metal rod. The centering mounting seats 231 and the centering columns 232 are distributed along the outer contour of the frame, thus forming a constraining centering cavity. When the frame is placed into the welding device, the frame edge contacts the centering column 232 and slides along the surface of the centering column 232 under gravity to the center area of ​​the cavity, where it is then placed on the adjustable positioning structure 22 for support and subsequent fixation.

[0025] To ensure structural strength, one end of several pairs of centering columns 232 is fixedly connected to the centering mounting base 231. Specifically, the centering columns 232 can be fixedly connected to the centering mounting base 231 by welding or integral molding, ensuring the stability of the centering columns 232 during frame insertion and preventing displacement due to external forces. The other end of the several pairs of centering columns 232 is inclined to form an opening, that is, the upper end of the centering column 232 is inclined outward relative to the lower end, forming a trumpet-shaped opening structure. The inclined upper end forms a gradually converging guide surface. When the frame contacts the inclined surface, its edge is guided by the inclined surface and automatically adjusts to the center area of ​​the centering cavity. The open centering columns 232 allow the frame to be guided and positioned without precise alignment during initial placement, enabling frames of different sizes to be quickly and gradually converged to the preset position via the centering columns 232, improving positioning accuracy and operational efficiency.

[0026] The adjustable clamping structure 24 includes an upper fixed base 241 disposed above the adjustable positioning structure 22, an upper clamping assembly 242 disposed on the upper fixed base 241, and a lower clamping assembly 243; the frame is located between the upper clamping assembly 242 and the lower clamping assembly 243. The upper fixed base 241 is fixed above the adjustable positioning structure 22 by a ceiling or a pillar (not shown in the figure). It can be understood that the upper fixed base 241 can also be fixed to the ground by a pillar or support. The upper clamping assembly 242 and the lower clamping assembly 243 are used to clamp the frame.

[0027] Reference Figure 4 Specifically, the upper clamping assembly 242 includes an upper connecting block 2421 slidably connected to the upper fixed base 241, an upper clamping block 2422 disposed on the upper connecting block 2421, an upper clamping drive member 2423 for driving the upper connecting block 2421, and an upper clamping block 2424; the upper clamping block 2424 has an upper clamping end, and the shape and size of the upper clamping block 2424 are adapted to the frame. In this embodiment, the upper clamping drive member 2423 is a cylinder, the upper connecting block 2421 is installed on the piston end of the cylinder to achieve sliding along the upper fixed base 241, and the upper clamping block 2422 is installed on the upper connecting block 2421 by a threaded connection to achieve position adjustment. The upper clamping block 2424 is installed on one side of the upper clamping drive 2423. Specifically, the upper clamping block 2424 can be fixedly connected to the upper fixed seat 21. The upper clamping block 2424 can also be installed on the piston end of the upper clamping drive 2423 to achieve up and down movement. Similar to the positioning end 2231, the end face shape of the upper clamping end is adapted to the frame part to be clamped. When the frame part to be clamped is recessed, the upper clamping end is recessed to adapt.

[0028] Similarly, to utilize and adapt to the holes in the frame, a second positioning pin 24221 is provided on part of the upper clamping end to mate with the holes in the frame. The second positioning pin 24221 can be installed on the upper clamping end via a threaded connection or an interference fit. The diameter of the second positioning pin 24221 is slightly smaller than the inner diameter of the frame hole. When the upper clamping drive 2423 drives the upper connecting block 2421 to move, the upper clamping block 2422 will abut against the frame and mate with the lower clamping assembly 243, and the second positioning pin 24221 will pass through the hole in the frame for further positioning.

[0029] The lower clamping assembly 243 includes a lower connecting block 2431 hinged to the upper fixed base 241, a lower clamping block 2432 disposed on the lower connecting block 2431, and a lower clamping drive member 2433 for driving the lower connecting block 2431. The lower clamping block 2432 has a lower clamping end, the shape and size of which are adapted to the frame. The lower clamping drive member 2433 is a cylinder, and the lower connecting block 2431 is rotatably connected to the piston end of the cylinder. Under the drive of the lower clamping drive member 2433, the lower connecting block 2431 rotates around its connection point with the upper fixed base 241 as an axis, thereby driving the lower clamping block 2432 to rotate. The lower clamping block 2432 is connected to the lower connecting block 2431 by a threaded connection to achieve position adjustment. Similarly, the end face shape of the lower clamping end is adapted to the frame part to be clamped, so that it works with the upper clamping end to clamp and fix the frame.

[0030] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A nut welding device, comprising a welding mechanism (1), characterized in that, It also includes an adjustable positioning mechanism (2), which includes a fixed base (21), an adjustable positioning structure (22) disposed on the fixed base (21), an adjustable centering structure (23), and an adjustable clamping structure (24) for clamping the frame; the adjustable positioning structure (22) includes a positioning support block (221) disposed on the fixed base (21), a plurality of positioning connecting blocks (222) disposed on the positioning support block (221), and a plurality of adjustable positioning blocks (223) disposed on the positioning connecting blocks (222), the plurality of adjustable positioning blocks (223) having a positioning end (2231) facing the frame, the shape of the positioning end (2231) being adapted to the shape of the frame; the welding mechanism (1) is oriented toward the adjustable positioning structure (22).

2. The nut welding device according to claim 1, characterized in that, The positioning end (2231) has a groove, and a first positioning post (224) is provided in the groove for cooperating with the positioning frame hole.

3. The nut welding device according to claim 1, characterized in that, The adjustable centering structure (23) includes a plurality of centering mounting seats (231) disposed on the fixed base (21), the plurality of centering mounting seats (231) having centering columns (232), the plurality of centering columns (232) surrounding to form a centering cavity for accommodating the frame.

4. The nut welding device according to claim 3, characterized in that, One end of each of the centering posts (232) is fixedly connected to the centering mounting base (231), and the other end of each of the centering posts (232) is inclined to be open.

5. A nut welding device according to any one of claims 1-4, characterized in that, The adjustable clamping structure (24) includes an upper fixed base (241) disposed above the adjustable positioning structure (22), an upper clamping assembly (242) disposed on the upper fixed base (241), and a lower clamping assembly (243); the frame is located between the upper clamping assembly (242) and the lower clamping assembly (243).

6. A nut welding device according to claim 5, characterized in that, The upper clamping assembly (242) includes an upper connecting block (2421) slidably connected to the upper fixed base (241), an upper clamping block (2422) disposed on the upper connecting block (2421), an upper clamping drive (2423) for driving the upper connecting block (2421), and an upper clamping block (2424); the upper clamping block (2424) has an upper clamping end, and the shape and size of the upper clamping block (2424) are adapted to the frame.

7. A nut welding device according to claim 6, characterized in that, The upper clamping end is also provided with a second positioning post (24221) for cooperating with the frame hole.

8. A nut welding device according to claim 5, characterized in that, The lower clamping assembly (243) includes a lower connecting block (2431) hinged to the upper fixed base (241), a lower clamping block (2432) disposed on the lower connecting block (2431), and a lower clamping drive member (2433) for driving the lower connecting block (2431); the lower clamping block (2432) has a lower clamping end, the shape and size of which are adapted to the frame.

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