Steel structure cross column welding jig frame
By designing an adjustable clamping and support structure for welding steel cross columns, the problems of inaccurate positioning and poor adaptability during steel structure welding were solved, improving welding precision and efficiency and reducing the labor intensity of operators.
Patent Information
- Application Number
- CN202520251722.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-17
AI Technical Summary
During the welding of steel structure cross columns, manual positioning is prone to tilting and deformation, resulting in high labor intensity for operators, low welding efficiency, and poor adaptability due to the non-adjustable spacing of existing jig support seats.
A steel structure cross-shaped welded jig was designed, which includes an adjustable clamping and supporting structure. It can fix and position I-beams of different sizes through a sliding mechanism and a lifting mechanism. The clamping structure includes a fixed clamp and an adjusting clamp, and the supporting structure can adapt to I-beams of different sizes through sliding and lifting mechanisms.
It improves welding precision and efficiency, reduces the labor intensity of operators, prevents welding spark injuries, and expands the application range of the equipment.
Smart Images

Figure CN223833792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding auxiliary devices, specifically to a steel structure cross column welding jig. Background Technology
[0002] Steel structures are structures mainly composed of steel materials and are one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The components or parts are usually connected by welds, bolts or rivets. Due to its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. Cross columns are cross-shaped welded building materials based on steel structures. They are lightweight, have good seismic performance, occupy a small area, have a good sense of space, and are also favored for their unique environmental advantages.
[0003] Currently, in the processing of steel structure cross columns, welding is the primary method of fabrication. During welding, manual support is often used for positioning, which can easily lead to tilting and deformation, affecting the welding strength and precision of the steel structure. Furthermore, multiple operators are required to assist in the operation, increasing the labor intensity of the workers. Additionally, welding sparks can injure the workers' hands during manual support, and the efficiency of steel structure welding is also reduced.
[0004] The existing cross-column welded jig structure has non-adjustable spacing between the support seats of the T-shaped steels to be welded on both sides. The function of the support seats is not only to support the T-shaped steels to be welded on both sides, but also to fix and position the H-beam in the middle. Since the spacing between the two support seats is not adjustable, the size of the cross-column steel structure that the jig can be used with can only be smaller than this spacing, which has low adaptability.
[0005] Therefore, we propose a steel structure cross-column welded jig. Summary of the Invention
[0006] To address the aforementioned shortcomings of the existing technology, this utility model provides a steel structure cross-column welded jig.
[0007] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:
[0008] A steel structure cross-shaped welding jig includes: a base box, which is rectangular in shape; a clamping structure, one end of which is fixed to one side of the top of the base box and the other end is slidably connected to the base box through a first sliding mechanism, the clamping structure being used to clamp and fix the T-shaped steel to be welded on both sides; and a supporting structure, which is slidably connected to the base box through a second sliding mechanism, the supporting structure being height-adjustable through a lifting structure, the supporting structure being used to position the H-beam flange in the middle and to support the T-shaped steel on both sides.
[0009] By connecting the support structure with a second sliding mechanism, the spacing of the support structure can be adjusted, and I-beam flanges of different sizes can be fixed to prevent them from sliding during the initial installation and positioning of the T-beams on both sides. Furthermore, the height adjustment through the lifting structure allows the support structure to accommodate the welding of cross columns with wider webs, thus improving the adaptability of the device.
[0010] Further defining the clamping structure, it includes a fixed clamp and an adjusting clamp. The fixed clamp includes a fixed vertical plate, a fixed horizontal bar, and a fixed clamping plate. The adjusting clamp includes an adjusting vertical plate, an adjusting horizontal bar, and an adjusting clamping plate. The fixed vertical plate is fixedly connected to the top of one side of the base box. One end of the fixed horizontal bar is fixedly connected to the fixed vertical plate, and the other end is fixedly connected to the vertically fixed clamping plate. The adjusting vertical plate is fixedly connected to the first sliding mechanism. One end of the adjusting horizontal bar is fixedly connected to the adjusting vertical plate, and the other end is fixedly connected to the vertically adjusting clamping plate. The fixed clamping plate and the adjusting clamping plate are arranged opposite to each other. By setting a fixed clamp at one end and an adjusting clamp at the other end, the adjusting clamping plate is slidably adjusted by the first sliding mechanism to limit the T-shaped steel to be welded on both sides. The structure is simple and easy to use.
[0011] Further defined, the first sliding mechanism includes a first sliding screw, a first sliding block, a first connecting rod, and a first turntable; the two ends of the first sliding screw are rotatably connected to the two side walls of the base box, with one end extending out of the box wall; the first sliding block is threadedly connected to the first sliding screw, with its bottom contacting the bottom of the base box; the first connecting rod is vertically mounted on the first sliding block; the top of the first sliding block is fixedly connected to the bottom of the adjusting plate; the top of the base box has a sliding groove for the first connecting rod to slide through; the first turntable is fixedly connected to the end of the first sliding screw that extends out of the box wall; by rotating the first turntable, the first sliding screw is driven to rotate, and the bottom of the first sliding block, in contact with the bottom surface of the base box, cannot rotate, thus sliding on the first sliding screw, driving the adjusting clamp to slide, thereby clamping the T-shaped steel, which is convenient to operate.
[0012] Further defining, the supporting structure includes two supporting rods and two supporting blocks fixedly installed on the top of the supporting rods.
[0013] Further defining the second sliding mechanism, it includes a second sliding screw, two second sliding blocks, and a second turntable. The two ends of the second sliding screw are rotatably connected to the two side walls of the base box, with one end extending through the box wall. A through hole is provided on the first connecting rod for the second sliding screw to pass through. Both second sliding blocks are threadedly connected to the second sliding screw, with opposite thread directions, allowing them to move towards or away from each other. The second turntable is fixedly connected to the end of the second sliding screw extending through the box wall. The bottom end of the support rod is fixedly connected to the second sliding block. The support rod passes through the top of the base box via a groove. The outer diameter of the support rod and the first connecting rod are the same, and both are the same width as the groove. By setting the thread directions of the two second sliding blocks to opposite directions, when the second turntable is rotated, the rotation of the second sliding screw will cause the two second sliding blocks to slide relative to or away from each other, thus limiting the movement of I-beam flanges of different sizes. The structure is simple.
[0014] Further defining the lifting structure, it includes a screw section and a sleeve section. The support rod is configured in two sections, with the screw section located at the top of the lower support rod and the sleeve section located at the bottom of the upper support rod. By configuring the screw section and the sleeve section, the lifting of the support rod can be achieved.
[0015] Furthermore, the fixing crossbar is also set in two sections, with one section having a screw and the other section having a threaded sleeve that matches the screw; setting the fixing crossbar in two sections allows the extension length of the fixing crossbar to be adjusted, making it more suitable for fixing crossbars with different widths of web plates.
[0016] The beneficial effects of this utility model are as follows: by setting a second sliding mechanism to adjust the supporting structure, the adaptability of the device to I-beams with different width flanges can be improved, making the device more widely used, and the structure is simple and easy to use. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the internal structure of this utility model.
[0018] The symbols for each component are as follows:
[0019] 1. Base box, 11. Slide groove, 2. Clamping structure, 21. Fixing clamp, 21. Fixing upright plate, 211. Fixing crossbar, 212. Fixing clamp plate, 213. Adjusting clamp, 22. Adjusting upright plate, 221. Adjusting crossbar, 222. Adjusting clamp plate, 223. Supporting structure, 3. Supporting rod, 31. Supporting block, 32. First sliding mechanism, 4. First sliding screw, 41. First sliding block, 42. First connecting rod, 43. First turntable, 44. Second sliding mechanism, 5. Second sliding screw, 51. Second sliding block, 52. Second turntable, 53. Lifting structure, 6. Screw section, 61. Sleeve section, 62. I-beam, 7. T-beam, 8. Detailed Implementation
[0020] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.
[0021] Example:
[0022] like Figure 1As shown, a steel structure cross-shaped column welding jig includes a base box 1, a clamping structure 2, a supporting structure 3, a first sliding mechanism 4, and a second sliding mechanism 5. The base box 1 is rectangular. One end of the clamping structure 2 is fixed to one side of the top of the base box 1, and the other end is slidably connected to the base box 1 through the first sliding mechanism 4. The clamping structure 2 is used to clamp and fix the T-shaped steel 8 to be welded on both sides. The clamping structure 2 includes a fixing clamp 21 and an adjusting clamp 22. The fixing clamp 21 includes a fixing vertical plate 211, a fixing horizontal bar 212, and a fixing clamping plate 213. The adjusting clamp 22 includes an adjusting vertical plate 221, an adjusting horizontal bar 222, and an adjusting clamping plate 223. The fixing vertical plate 211 is fixedly connected to the top of one side of the base box 1, and one end of the fixing horizontal bar 212 is fixedly connected to the fixing vertical plate 221, the adjusting horizontal bar 222, and the adjusting clamping plate 223. The fixed plate 211 is fixed at one end and fixed at the other end to the vertical fixed clamping plate 213. The fixed crossbar 212 is a two-section structure, with a screw on one end and a threaded sleeve matching the screw on the other end. The adjusting plate 221 is fixedly connected to the first sliding mechanism 4. One end of the adjusting crossbar 222 is fixedly connected to the adjusting plate 221 and the other end is fixedly connected to the vertical adjusting clamping plate 223. The fixed clamping plate 213 and the adjusting clamping plate 223 are arranged opposite to each other. The first sliding mechanism 4 includes a first sliding screw 41, a first sliding block 42, a first connecting rod 43 and a first turntable 44. The two ends of the first sliding screw 41 are rotatably connected to the two side walls of the base box 1, and one end protrudes from the box wall. The first sliding block 42 is threadedly connected to the first sliding screw. The first connecting rod 43 is vertically mounted on the first sliding block 42, and the top of the first sliding block 42 is fixedly connected to the bottom of the adjusting plate 221. The top of the base box 1 is provided with a sliding groove 11 for the first connecting rod 43 to slide through. The first turntable 44 is fixedly connected to the end of the first sliding screw 41 that protrudes from the box wall. The supporting structure 3 is slidably connected to the base box 1 through the second sliding mechanism 5. The height of the supporting structure 3 can be adjusted by the lifting structure 6. The supporting structure 3 is used to position the wing plate of the H-beam 7 in the middle and to support the TT-shaped steel 8 on both sides. The supporting structure 3 includes two supporting rods 31 and two supporting blocks 32 fixedly mounted on the top of the supporting rods 31. The second sliding mechanism 5 includes a second sliding block 32. The system includes a moving lead screw 51, two second sliding blocks 52, and a second turntable 53. The two ends of the second sliding lead screw 51 are rotatably connected to the two side walls of the base box 1, and one end protrudes from the box wall. The first connecting rod 43 has a through hole for the second sliding lead screw 51 to pass through. The two second sliding blocks 52 are threadedly connected to the second sliding lead screw 51. The threads of the two second sliding blocks 52 are opposite, so that the two second sliding blocks 52 can move towards or away from each other. The second turntable 53 is fixedly connected to the end of the second sliding lead screw 51 that protrudes from the box wall. The bottom end of the support rod 31 is fixedly connected to the second sliding block 52. The support rod 31 passes through the top of the base box 1 through the slide groove 11. The outer diameter of the support rod 31 and the first connecting rod 43 are the same, and both are the same as the width of the slide groove 11.The lifting structure 6 includes a screw section 61 and a sleeve section 62. The support rod 31 is configured in two sections: the screw section 61 is located at the top of the lower support rod 31, and the sleeve section 62 is located at the bottom of the upper support rod 31.
[0023] By connecting the supporting structure 3 with the second sliding mechanism 5, the spacing of the supporting structure 3 can be adjusted, allowing for the fixing of I-beams 7 flanges of different sizes and preventing them from sliding during the initial installation and positioning of the T-beams 8 on both sides. Furthermore, the height adjustment via the lifting structure 6 allows the supporting structure 3 to accommodate cross-shaped columns with wider webs, improving the adaptability of the device. With a fixing clamp 21 at one end and an adjusting clamp 22 at the other, the adjusting clamp plate 223 is slidably adjusted via the first sliding mechanism 4 to limit the T-beams 8 to be welded on both sides. The structure is simple and easy to use. Rotating the first turntable 44 drives the first sliding screw 41 to rotate, and the first sliding block 4... The bottom of 2 is in contact with the bottom surface of the base box 1 and cannot rotate, so it will slide on the first sliding screw 41, driving the adjusting clamp 22 to slide and clamp the T-shaped steel 8, which is convenient to operate; by setting the thread direction of the two second sliding blocks 52 to opposite directions, when the second turntable 53 is rotated, the rotation of the second sliding screw 51 will drive the two second sliding blocks 52 to slide relative to or away from each other, so as to limit the wing plates of different sizes of I-beams 7, which is simple in structure; by setting the screw section 61 and the sleeve section 62, the lifting and lowering of the support rod 31 can be realized; setting the fixed crossbar 212 to be two-sectioned can make the extension length of the fixed crossbar 212 adjustable, which is more suitable for fixing cross columns with different widths of web plates.
Claims
1. A steel structure cross-column welded jig, characterized in that, include: The base box (1) is rectangular in shape; The clamping structure (2) has one end fixed to one side of the top of the base box (1) and the other end slidably connected to the base box (1) through the first sliding mechanism (4). The clamping structure (2) is used to clamp and fix the T-shaped steel (8) to be welded on both sides. The supporting structure (3) is slidably connected to the base box (1) through the second sliding mechanism (5). The height of the supporting structure (3) can be adjusted by the lifting structure (6). The supporting structure (3) is used to position the wing plate of the H-beam (7) in the middle and to support the T-beams (8) on both sides.
2. The steel structure cross-column welded frame according to claim 1, characterized in that, The clamping structure (2) includes a fixed clamp (21) and an adjusting clamp (22); the fixed clamp (21) includes a fixed upright plate (211), a fixed crossbar (212) and a fixed clamping plate (213); the adjusting clamp (22) includes an adjusting upright plate (221), an adjusting crossbar (222) and an adjusting clamping plate (223); the fixed upright plate (211) is fixedly connected to the top of one side of the base box (1); one end of the fixed crossbar (212) is fixedly connected to the fixed upright plate (211) and the other end is fixedly connected to the vertical fixed clamping plate (213); the adjusting upright plate (221) is fixedly connected to the first sliding mechanism (4); one end of the adjusting crossbar (222) is fixedly connected to the adjusting upright plate (221) and the other end is fixedly connected to the vertical adjusting clamping plate (223); the fixed clamping plate (213) and the adjusting clamping plate (223) are arranged opposite to each other.
3. The steel structure cross-column welded jig according to claim 2, characterized in that, The first sliding mechanism (4) includes a first sliding screw (41), a first sliding block (42), a first connecting rod (43), and a first turntable (44). The two ends of the first sliding screw (41) are rotatably connected to the two side walls of the base box (1), and one end protrudes from the box wall. The first sliding block (42) is threadedly connected to the first sliding screw (41), and its bottom contacts the bottom of the base box (1). The first connecting rod (43) is vertically disposed on the first sliding block (42). The top of the first sliding block (42) is fixedly connected to the bottom of the adjusting plate (221). The top of the base box (1) is provided with a sliding groove (11) through which the first connecting rod (43) slides. The first turntable (44) is fixedly connected to the end of the first sliding screw (41) that protrudes from the box wall.
4. The steel structure cross-column welded jig according to claim 3, characterized in that, The supporting structure (3) includes two supporting rods (31) and two supporting blocks (32) fixed on the top of the supporting rods (31).
5. The steel structure cross-column welded frame according to claim 4, characterized in that, The second sliding mechanism (5) includes a second sliding screw (51), two second sliding blocks (52), and a second turntable (53); the two ends of the second sliding screw (51) are rotatably connected to the two side walls of the base box (1), and one end protrudes from the box wall; the first connecting rod (43) has a through hole for the second sliding screw (51) to pass through; the two second sliding blocks (52) are threadedly connected to the second sliding screw (51); the threads of the two second sliding blocks (52) are... The two second sliding blocks (52) are moved in opposite directions, allowing them to move towards or away from each other. The second turntable (53) is fixedly connected to the end of the second sliding screw (51) that protrudes from the box wall. The bottom end of the support rod (31) is fixedly connected to the second sliding block (52). The support rod (31) passes through the top of the base box (1) through the slide groove (11). The outer diameter of the support rod (31) and the first connecting rod (43) are the same, and both are the same as the width of the slide groove (11).
6. The steel structure cross-column welded jig according to claim 5, characterized in that, The lifting structure (6) includes a screw section (61) and a sleeve section (62). The support rod (31) is configured in two sections. The screw section (61) is located at the top of the lower support rod (31), and the sleeve section (62) is located at the bottom of the upper support rod (31).
7. The steel structure cross-column welded frame according to claim 2, characterized in that, The fixed crossbar (212) is also a two-section design, with one section having a screw and the other section having a threaded sleeve that matches the screw.