A T-penetration welding method for H-shaped steel column stiffening plate

Abstract

The present invention relates to the field of H-shaped steel column stiffening plate welding, specifically a H-shaped steel column stiffening plate T-penetration welding method, including step one: opening a groove, fixing the stiffening plate inside a U-shaped clamp, fixing it on a lathe through a slider on the back of the U-shaped clamp, the groove angle is between 30 and 40 degrees, removing the oxide scale and polishing to light; step two: positioning welding, adjusting the gap distance between the stiffening plate and the flange plate and the web plate from the original zero gap to a gap of 3 to 4 mm, and the length of the positioning welding is between 2 and 4 cm; step three: front welding; step four: back grinding; step five: back welding. The present invention uses a certain gap between the stiffening plate and the flange plate, changing from the original zero gap, 45-degree groove, to a gap of 3 to 4 mm, a groove of 30 to 40 degrees, the gap is slightly larger than the welding wire, and welding is performed directly on the front side. After the front welding is completed, the back side is polished and then directly welded, eliminating the process of carbon planing and root cleaning, which can save costs and shorten processing time.

Description

Technical Field

[0001] The invention relates to a welding method, in particular to a T-penetration welding method for an H-shaped steel column stiffening plate, and belongs to the technical field of H-shaped steel column stiffening plate welding. Background Art

[0002] H-shaped steel column stiffener T-penetration welding method: H-shaped steel is the most widely used steel structure material. Since H-shaped steel needs to be connected to steel beams, it is often required that the weld between the stiffener and the H-shaped steel inside it is a full penetration weld.

[0003] At present, the most common practice is to cut a 45-degree groove on the stiffening plate, weld on the front side, and carbon planer the back side before welding. Carbon planer cleaning is an important process in this method, but carbon planer cleaning produces a lot of dust, noise, and defects, which leads to slow production speed.

[0004] Therefore, it is urgent to improve the T-penetration welding method of the H-shaped steel column stiffener to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a T-penetration welding method for an H-shaped steel column stiffening plate, in which a certain gap is left between the stiffening plate and the flange plate, and the gap is changed from the original zero gap and 45-degree groove to a gap of 3-4 mm and a groove of 30-40 degrees. The gap is slightly larger than the welding wire, and the front side is directly welded. After the front side welding is completed, the back side is polished and then directly welded, thereby eliminating the process of carbon planing and root cleaning, thereby saving costs and shortening processing time.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] A T-penetration welding method for an H-shaped steel column stiffening plate comprises the following steps:

[0008] Step 1: Open the bevel, fix the stiffener plate inside the U-shaped clamp, fix it on the lathe through the slider on the back of the U-shaped clamp, use a cutting machine to open the bevel on the three sides of the stiffener plate, the bevel angle is between 30 and 40 degrees, remove the oxide skin on the surface of the bevel, and use an angle grinder to polish it to a shine;

[0009] Step 2: Positioning welding: fix the right-angle fixing plate inside the flange plate on both sides of the H-shaped steel column, slide the slider vertically inside the fastening bolt, adjust the gap distance between the stiffening plate and the flange plate and the web plate from the original zero gap to 3-4mm gap, use a spot welding machine to locally weld and fix the stiffening plate, and the length of the positioning welding is between 2-4cm;

[0010] After the positioning welding is completed, the U-shaped clamp is removed, and the right-angle fixing plate is pushed by hand to slide to the side away from the stiffening plate;

[0011] Step 3: Front welding, use carbon dioxide to weld the front side to ensure the front weld;

[0012] Step 4: Grind the back side. After the front side welding is completed, use an angle grinder to clean the back side with welding slag.

[0013] Step 5: Weld the back side. After polishing, use carbon dioxide to weld a weld at the back side of the stiffener and cool it down naturally.

[0014] The stiffening plate fixing mechanism includes a right-angle fixing plate, the bottom end of the right-angle fixing plate is against the web plate, a U-shaped clamping plate is slidably provided on one side of the right-angle fixing plate, a slider is fixedly installed on the U-shaped clamping plate, the U-shaped clamping plate is slidably provided on one side of the right-angle fixing plate through the slider, a fastening bolt is rotatably provided on the side of the U-shaped clamping plate away from the slider, the fastening bolt is used to fix the stiffening plate, a sliding groove is provided on the right-angle fixing plate corresponding to the position of the U-shaped clamping plate, and the slider is slidably provided inside the sliding groove;

[0015] A pull rod is fixedly installed on the right-angle fixed plate, an adjusting rod is rotatably provided on the pull rod, an I-shaped gear is fixedly provided on the adjusting rod, the I-shaped gear is rotatably provided inside the pull rod, a clockwork box is fixedly installed on the pull rod, the adjusting rod extends to the outside of the pull rod and the clockwork box, a vortex spring is fixedly provided inside the clockwork box, one end of the vortex spring is fixedly connected to the adjusting rod, and the other end is fixedly connected to the inner side of the clockwork box.

[0016] Preferably, a limiting rod sliding guide groove is provided inside the pull rod, the limiting rod sliding guide groove is connected to the inside of the sliding groove, and a limiting groove is provided on one side of the sliding block.

[0017] Preferably, the internal sliding of the limit rod sliding guide groove is provided with two limit rods arranged opposite to each other, the limit rods are distributed on the upper and lower sides of the adjusting rod, and the end of the limit rod away from the adjusting rod corresponds to the limit groove, and the limit rod is provided with a tooth groove at the position corresponding to the adjusting rod, and the tooth groove is meshed with the industrial gear.

[0018] Preferably, a buffer spring is fixedly installed inside the slide groove, and the upper end of the buffer spring is fixedly connected to a top block, and the top end of the top block abuts against the bottom end of the sliding block.

[0019] Preferably, a fixing box is fixedly mounted on one end of the right-angle fixing plate away from the U-shaped clamping plate, and a shaft rod is rotatably provided on the fixing box, and the shaft rod extends into the interior of the fixing box.

[0020] Preferably, a handle is fixedly mounted on the upper end of the shaft rod, a gear is fixedly mounted on one end of the shaft rod away from the handle, and the gear is rotatably arranged inside the fixing box.

[0021] Preferably, two gear rods are slidably provided on both sides of the gear, the gear rods penetrate the fixed box and extend to both sides of the fixed box, the fixed box is provided with gear rod sliding guide grooves at positions corresponding to the gear rods, and the gear rods are slidably provided inside the gear rod sliding guide grooves.

[0022] Preferably, a clamping plate is fixedly mounted on one end of the gear rod, and during the rotation of the fixing box, a side of the clamping plate away from the gear rod abuts against the flange plate.

[0023] Preferably, a groove is provided on the clamping plate, a telescopic pulley is rotatably arranged inside the groove, shafts at both ends of the telescopic pulley are slidably arranged inside the clamping plate through springs, and one end of the telescopic pulley abuts against the flange plate.

[0024] Preferably, an end of the adjusting rod away from the I-shaped gear is fixedly connected with an adjusting nut, and the adjusting nut is rotatably arranged on the outside of the clockwork box.

[0025] The present invention has at least the following beneficial effects:

[0026] 1. The present invention leaves a certain gap between the stiffening plate and the flange plate, which is changed from the original zero gap and 45-degree groove to a 3-4 mm gap and a 30-40-degree groove. The gap is slightly larger than the welding wire. Direct welding is performed on the front side. After the front side welding is completed, the back side is polished and then directly welded, eliminating the process of carbon planing and root cleaning, which can save costs and shorten processing time.

[0027] 2. The present invention rotates the adjusting rod, and the adjusting rod retracts the limit rod through the meshing of the tooth groove and the I-shaped gear. At this time, the stiffening plate is slightly lifted to a suitable gap, and the adjusting rod is loosened. The adjusting rod is reset under the action of the vortex spring. The transmission limit rod extends to both sides and is against the limit groove to prevent the stiffening plate from loosening. No hand support is required during welding, which can improve the stability of the stiffening plate during welding, thereby improving the T-penetration welding quality of the stiffening plate.

[0028] 3. When the stiffening plate of the present invention is installed, the middle part is aligned with the middle part of the U-shaped clamping plate. When the bottom side of the right-angle fixed plate contacts the web plate, the transmission clamping plate is screwed to contact the inner side of the flange plate to fix the right-angle fixed plate. While the right-angle fixed plate is fixed, the middle part of the stiffening plate can be aligned with the middle parts of the flange plates on both sides through the symmetrically distributed sliding grooves and sliders, thereby making the distance between the two sides of the stiffening plate and the flange plate consistent, which can effectively reduce the error and make the welding position of the stiffening plate more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0030] Figure 1 A schematic diagram of the three-dimensional structure provided by the present invention;

[0031] Figure 2 A plan view of step 1 provided by the present invention;

[0032] Figure 3 A plan view of step 2 provided by the present invention;

[0033] Figure 4 A plan view of step three provided by the present invention;

[0034] Figure 5 A plan view of step 4 provided by the present invention;

[0035] Figure 6 A plan view of step five provided by the present invention;

[0036] Figure 7 A schematic diagram of the structure of the right-angle fixing plate provided by the present invention;

[0037] Figure 8 A schematic diagram of the U-shaped splint structure provided by the present invention;

[0038] Fig. 9 An exploded schematic diagram of the adjusting rod and the limiting rod provided by the present invention;

[0039] Fig.10 This is a schematic diagram of the gear rod structure provided by the present invention.

[0040] In the figure, 1, U-shaped clamp; 11, slider; 12, fastening bolt; 13, limit groove; 2, stiffening plate; 3, H-shaped steel column; 31, flange plate; 32, web plate; 4, right-angle fixing plate; 41, slide groove; 42, pull rod; 421, limit rod sliding guide groove; 43, adjusting rod; 431, I-shaped gear; 432, adjusting nut; 44, clockwork box; 45, vortex spring; 46, limit rod; 461, tooth groove; 47, buffer spring; 48, top block; 5, fixing box; 51, shaft rod; 52, handle; 53, gear; 54, gear rod sliding guide groove; 6, gear rod; 61, clamping plate; 62, groove; 63, telescopic pulley. DETAILED DESCRIPTION

[0041] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0042] like Figure 1-Figure 10 As shown, the present embodiment provides a method for T-through-penetration welding of an H-shaped steel column stiffener, comprising the following steps:

[0043] Step 1: Open the groove, fix the stiffening plate 2 inside the U-shaped clamp 1, fix it on the lathe through the slider 11 on the back of the U-shaped clamp 1, use a cutting machine to open the grooves on the three sides of the stiffening plate 2, the groove angle is between 30 and 40 degrees, remove the oxide skin on the groove surface, and use an angle grinder to polish it to a light finish;

[0044] Among them, Figure 2 As shown, a cutting machine is used to open the grooves on the three sides of the stiffening plate 2, and the groove angle is between 30 and 40 degrees. The oxide scale on the groove surface is removed, and an angle grinder is used to polish it to a shine. The groove angle must be accurate, and the error does not exceed 2 degrees. t (mm) is the width of the stiffening plate 2, α (°) is the groove angle, and b (mm) is the gap distance between the stiffening plate 2 and the flange plate 31 and the web plate 32;

[0045] Step 2: Positioning welding, fix the right-angle fixing plate 4 inside the flange plate 31 on both sides of the H-shaped steel 3, and set it inside the fastening bolt 12 by vertically sliding the slider 11, adjust the gap distance between the stiffening plate 2 and the flange plate 31 and the web 32 from the original zero gap to 3-4mm gap, use a spot welding machine to locally weld and fix the stiffening plate 2, and the length of the positioning welding is between 2-4cm;

[0046] Among them, Figure 3 As shown, after the positioning welding is completed, the U-shaped clamping plate 1 is removed, and the right-angle fixing plate 4 is pushed by hand to slide to the side away from the stiffening plate 2, and the gap distance between the stiffening plate 2 and the flange plate 31 and the web plate 32 is adjusted from the original zero gap and 45-degree groove to 3-4mm gap and 30-40-degree groove. The gap is slightly larger than the welding wire, and the gap and angle are as shown in the following table;

[0047]

[0048] Table 1

[0049] Step 3: Front welding, such as Figure 4 As shown, carbon dioxide is used for front welding to ensure that the front weld is connected naturally;

[0050] Step 4: Polish the reverse side, such as Figure 5 As shown in the figure, after the front welding is completed, the part with welding slag on the back is polished clean with an angle grinder;

[0051] Step 5: Solder the reverse side, such as Figure 6 As shown, after the welding slag on the reverse side is polished clean, a weld is made at the welding leg on the reverse side of the stiffening plate 2 using carbon dioxide to ensure that the welding leg meets the requirements and the temperature is naturally reduced;

[0052] The right-angle fixing plate 4 is fixed inside the flange plate 31 on both sides of the H-shaped steel 3, and the slider 11 is vertically slidably set inside the fastening bolt 12, and the gap distance between the stiffening plate 2 and the flange plate 31 and the web plate 32 is adjusted from the original 0 gap and 45-degree groove to 3-4mm gap and 30-40-degree groove. The gap is slightly larger than the welding wire, and the front side is directly welded. After the front side welding is completed, the back side is polished and then directly welded, eliminating the process of carbon planing root cleaning, fundamentally solving the problems of high dust, high noise and many defects in the process of carbon planing root cleaning, not only reducing the processing cost, but also shortening the processing time, so that the efficiency of stiffening plate welding is greatly improved;

[0053] The stiffening plate fixing mechanism includes a right-angle fixing plate 4, the bottom end of the right-angle fixing plate 4 is against the web 32, a U-shaped clamping plate 1 is slidably provided on one side of the right-angle fixing plate 4, a slider 11 is fixedly installed on the U-shaped clamping plate 1, the U-shaped clamping plate 1 is slidably provided on one side of the right-angle fixing plate 4 through the slider 11, a fastening bolt 12 is rotatably provided on the side of the U-shaped clamping plate 1 away from the slider 11, the fastening bolt 12 is used to fix the stiffening plate 2, a slide groove 41 is provided at the position of the right-angle fixing plate 4 corresponding to the U-shaped clamping plate 1, and the slider 11 is slidably provided inside the slide groove 41; a pull rod 42 is fixedly installed on the right-angle fixing plate 4, an adjusting rod 43 is rotatably provided on the pull rod 42, and a fixing rod 43 is fixed on the adjusting rod 43 An I-shaped gear 431 is provided, which is rotatably arranged inside the pull rod 42, a spring box 44 is fixedly installed on the pull rod 42, an adjusting rod 43 extends to the outside of the pull rod 42 and the spring box 44, a vortex spring 45 is fixedly arranged inside the spring box 44, one end of the vortex spring 45 is fixedly connected to the adjusting rod 43, and the other end is fixedly connected to the inner side of the spring box 44, the stiffening plate 2 is fixed inside the U-shaped clamping plate 1, and is fixed on a lathe through a slider 11, a cutting machine is used to cut grooves on three sides of the stiffening plate 2, and then it is installed on the slide 41 through the slider 11, and the right-angle fixing plate 4 makes the stiffening plate 2 perpendicular to the web 32, and there is no need to adjust the verticality of the stiffening plate T during full penetration welding;

[0054] A limit rod sliding guide groove 421 is provided inside the pull rod 42, and the limit rod sliding guide groove 421 is connected to the inside of the slide groove 41. A limit groove 13 is provided on one side of the slide block 11. Two limit rods 46 arranged opposite to each other are provided inside the limit rod sliding guide groove 421. The limit rods 46 are distributed on the upper and lower sides of the adjustment rod 43, and the end of the limit rod 46 away from the adjustment rod 43 corresponds to the limit groove 13. The limit rod 46 has a tooth groove 461 at the position corresponding to the adjustment rod 43, and the tooth groove 461 is meshed with the I-shaped gear 431. The stiffening plate 2 passes through the slide block 11. Installed on the slide 41, the limit rod 46 is retracted through the limit groove 13 during the sliding process of the slider 11, and the adjustment rod 43 is rotated through the tooth groove 461 and the I-shaped gear 431 during the retraction of the limit rod 46, and the vortex spring 45 drives the adjustment rod 43 to reset, which is convenient for the installation of the stiffening plate 2. A buffer spring 47 is fixedly installed inside the slide 41, and a top block 48 is fixedly connected to the upper end of the buffer spring 47. The top end of the top block 48 is against the bottom end of the slider 11. The top block 48 cooperates with the buffer spring 47 to support the stiffening plate 2 on the one hand, and can play a buffering role on the other hand;

[0055] In order to facilitate the adjustment of the gap between the stiffening plate 2 and the web 32:

[0056] like Figure 7-10 As shown, the stiffening plate 2 is first fixed inside the U-shaped clamp 1, fixed on the lathe through the slider 11, and the three sides of the stiffening plate 2 are cut into grooves using a cutting machine. Then, it is installed on the slide groove 41 through the slider 11, and the adjusting rod 43 is turned to rotate. The adjusting rod 43 retracts the limit rod 46 through the engagement of the tooth groove 461 and the I-shaped gear 431. At this time, the stiffening plate 2 is slightly lifted to a suitable gap, and the adjusting rod 43 is loosened. The adjusting rod 43 is reset under the action of the vortex spring 45. The transmission limit rod 46 extends to both sides and is against the limit groove 13 to prevent the stiffening plate 2 from loosening. No hand support is required during welding, which can improve the stability of the stiffening plate during welding, thereby improving the quality of the stiffening plate T penetration welding.

[0057] Further, such as Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, a fixing box 5 is fixedly installed at one end of the right-angle fixing plate 4 away from the U-shaped clamping plate 1, a shaft 51 is rotatably installed on the fixing box 5, the shaft 51 extends to the inside of the fixing box 5, a handle 52 is fixedly installed on the upper end of the shaft 51, a gear 53 is fixedly installed at one end of the shaft 51 away from the handle 52, the gear 53 is rotatably arranged inside the fixing box 5, two gear rods 6 are slidably arranged on both sides of the gear 53, the gear rods 6 penetrate the fixing box 5 and extend to both sides of the fixing box 5, a gear rod sliding guide groove 54 is opened at the position of the fixing box 5 corresponding to the gear rod 6, and the gear rod 6 is slidably arranged inside the gear rod sliding guide groove 54;

[0058] At the same time, if Figure 7 and Fig.10 As shown, a clamping plate 61 is fixedly installed at one end of the gear rod 6. During the rotation of the fixed box 5, the side of the clamping plate 61 away from the gear rod 6 abuts against the flange plate 31. A groove 62 is provided on the clamping plate 61. A telescopic pulley 63 is rotatably arranged inside the groove 62. The shafts at both ends of the telescopic pulley 63 are slidably arranged inside the clamping plate 61 through springs, and one end of the telescopic pulley 63 abuts against the flange plate 31.

[0059] Among them, when the stiffening plate 2 is installed, the middle part is aligned with the middle part of the U-shaped clamp 1. When the bottom side of the right-angle fixing plate 4 contacts the web, the handle 52 is turned to drive the gear 53 to rotate through the shaft rod 51, and the gear 53 drives the clamping plate 61 to slide on both sides of the fixing box 5 through the gear rod 6. The right-angle fixing plate 4 can be fixed until the clamping plate 61 contacts the inner side of the flange plate 31. While the right-angle fixing plate 4 is fixed, the middle part of the stiffening plate 2 can be aligned with the middle part of the flange plates 31 on both sides through the symmetrically distributed slide grooves 41 and sliders 11, so that the distance between the two sides of the stiffening plate 2 and the flange plates 31 is consistent, which can effectively reduce the error, thereby making the welding position of the stiffening plate 2 more accurate.

[0060] In addition, if Figure 1-Figure 10 As shown, one end of the adjusting rod 43 away from the I-shaped gear 431 is fixedly connected with an adjusting nut 432 , and the adjusting nut 432 is rotatably arranged on the outside of the clockwork box 44 , so that the staff can manually adjust the position of the stiffening plate 2 .

[0061] like Figure 1-Figure 10 As shown, the H-shaped steel column stiffener T penetration welding method provided in this embodiment includes the following steps:

[0062] Step 1: Open the groove. The groove angle should be accurate, with an error of no more than 2 degrees. Remove the oxide scale from the groove surface, polish it to a shine, and reserve a gap according to Table 1. Both ends should be even. Figure 2 ;

[0063] Step 1: Positioning welding. Positioning welding should be as short as possible while ensuring the fixing strength. Figure 3 .

[0064] Step 1: Front welding, use carbon dioxide to weld the front side to ensure the front weld, such as Figure 4 .

[0065] Step 1: Grind the back side. After the front side is welded, grind the back side with welding slag clean. Figure 5 .

[0066] Step 1: Weld the reverse side. After polishing, weld a weld on the reverse side to ensure that the weld leg meets the requirements. Figure 6 .

[0067] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0068] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0069] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A method for T-penetration welding of H-shaped steel column stiffeners, characterized in that: The following steps are involved: Step 1: Beveling, fix the stiffening plate (2) inside the U-shaped clamp (1), fix it on the lathe through the slider (11) on the back of the U-shaped clamp (1), use a cutting machine to bevel the three sides of the stiffening plate (2), the bevel angle is between 30 and 40 degrees, remove the oxide scale on the surface of the bevel, and use an angle grinder to grind it to a shine; Step 2: Position welding, fix the right-angle fixing plate (4) inside the flange plate (31) on both sides of the H-shaped steel column (3), and vertically slide the slider (11) inside the fastening bolt (12), adjust the gap distance between the stiffening plate (2) and the flange plate (31) and the web (32) from the original zero gap to a gap of 3 to 4 mm, and use a spot welding machine to locally weld and fix the stiffening plate (2), and the length of the positioning welding is between 2 and 4 cm; After the positioning welding is completed, the U-shaped clamping plate (1) is removed, and the right-angle fixing plate (4) is pushed by hand to slide to the side away from the stiffening plate (2); Step 3: Front welding, use carbon dioxide to weld the front side to ensure the front weld; Step 4: Grind the back side. After the front side welding is completed, use an angle grinder to clean the back side with welding slag. Step 5: Weld the back side. After polishing, use carbon dioxide to weld a weld at the back side of the stiffening plate (2) and cool it down naturally. The stiffening plate fixing mechanism comprises a right-angle fixing plate (4), the bottom end of the right-angle fixing plate (4) is against the web (32), a U-shaped clamping plate (1) is slidably arranged on one side of the right-angle fixing plate (4), a slider (11) is fixedly installed on the U-shaped clamping plate (1), the U-shaped clamping plate (1) is slidably arranged on one side of the right-angle fixing plate (4) through the slider (11), a fastening bolt (12) is rotatably arranged on the side of the U-shaped clamping plate (1) away from the slider (11), the fastening bolt (12) is used to fix the stiffening plate (2), a sliding groove (41) is opened on the right-angle fixing plate (4) at a position corresponding to the U-shaped clamping plate (1), and the slider (11) is slidably arranged inside the sliding groove (41); A pull rod (42) is fixedly mounted on the right-angle fixed plate (4), an adjusting rod (43) is rotatably mounted on the pull rod (42), an I-shaped gear (431) is fixedly mounted on the adjusting rod (43), and the I-shaped gear (431) is rotatably mounted inside the pull rod (42), a clockwork box (44) is fixedly mounted on the pull rod (42), the adjusting rod (43) extends to the outside of the pull rod (42) and the clockwork box (44), a vortex spring (45) is fixedly mounted inside the clockwork box (44), one end of the vortex spring (45) is fixedly connected to the adjusting rod (43), and the other end is fixedly connected to the inside of the clockwork box (44); A fixing box (5) is fixedly mounted on one end of the right-angle fixing plate (4) away from the U-shaped clamping plate (1), and a shaft (51) is rotatably arranged on the fixing box (5), and the shaft (51) extends into the interior of the fixing box (5); A handle (52) is fixedly mounted on the upper end of the shaft rod (51), and a gear (53) is fixedly mounted on one end of the shaft rod (51) away from the handle (52), and the gear (53) is rotatably arranged inside the fixing box (5); Two gear rods (6) are slidably arranged on both sides of the gear (53); the gear rods (6) penetrate the fixed box (5) and extend to both sides of the fixed box (5); a gear rod sliding guide groove (54) is provided on the fixed box (5) at a position corresponding to the gear rod (6); the gear rod (6) is slidably arranged inside the gear rod sliding guide groove (54).

2. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 1, characterized in that: A limit rod sliding guide groove (421) is provided inside the pull rod (42), the limit rod sliding guide groove (421) is connected to the inside of the slide groove (41), and a limit groove (13) is provided on one side of the slide block (11).

3. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 2, characterized in that: Two oppositely arranged limit rods (46) are slidably arranged inside the limit rod sliding guide groove (421), and the limit rods (46) are distributed on the upper and lower sides of the adjustment rod (43), and one end of the limit rod (46) away from the adjustment rod (43) corresponds to the limit groove (13), and a tooth groove (461) is provided at the position of the limit rod (46) corresponding to the adjustment rod (43), and the tooth groove (461) is meshed with the I-shaped gear (431).

4. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 1, characterized in that: A buffer spring (47) is fixedly installed inside the slide groove (41), and the upper end of the buffer spring (47) is fixedly connected to a top block (48), and the top end of the top block (48) abuts against the bottom end of the sliding block (11).

5. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 1, characterized in that: A clamping plate (61) is fixedly mounted on one end of the gear rod (6), and during the rotation of the fixing box (5), the side of the clamping plate (61) away from the gear rod (6) abuts against the flange plate (31).

6. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 5, characterized in that: The clamping plate (61) is provided with a groove (62), a telescopic pulley (63) is rotatably arranged inside the groove (62), shafts at both ends of the telescopic pulley (63) are slidably arranged inside the clamping plate (61) through springs, and one end of the telescopic pulley (63) is in contact with the flange plate (31).

7. The method for T-penetration welding of H-shaped steel column stiffeners according to claim 1, characterized in that: An end of the adjusting rod (43) away from the I-shaped gear (431) is fixedly connected to an adjusting nut (432), and the adjusting nut (432) is rotatably arranged on the outside of the clockwork box (44).

Images