Automatic postweld treatment device for steel structure welding part

Abstract

The invention discloses an automatic post-welding treatment device for a steel structure welding part, and relates to the technical field of stress relief, the automatic post-welding treatment device comprises a setting frame and a bearing, the bearing is mounted on one side surface of the setting frame, a rotating shaft is mounted on the inner wall of the bearing, a clamping arm is mounted on the outer side surface of the rotating shaft, and a lever extension arm is arranged on one side surface of the clamping arm; a composite flexible floating supporting layer composed of an air bag and sponge is used for isolating base damping, a movable frame descends to be in linkage with a trigger plate to abut against a lever, and an innovative automatic rigid clamping mechanism that side clamping arms are driven to be closed is adopted; and finally, the effects of full-automatic feeding of the steel structure workpiece, stable suspension supporting and efficient post-welding stress vibration elimination under ideal boundary conditions are achieved, and therefore the defects that in the prior art, the labor intensity of workers is large, and the overall stress elimination treatment efficiency is seriously limited are overcome. And a manually-tightened high-strength clamp is easy to loosen under the working condition of long-time high-frequency vibration, so that the treatment effect is unstable.

Description

Technical Field

[0001] This invention relates to the field of stress relief technology, and in particular to an automated post-weld treatment device for welded steel structures. Background Technology

[0002] Welding is a widely used metal joining process in modern industrial production. However, due to the localized high-temperature heating and subsequent uneven cooling during the welding process, complex residual stresses inevitably arise inside the welded structure. If these residual stresses are not effectively eliminated, they will seriously affect the dimensional stability, mechanical properties, and fatigue life of the welded structure, and may even lead to cracking or failure of the structure under no external load. Therefore, post-weld stress relief treatment is a key process to ensure product quality.

[0003] Current techniques for stress relief in welded structural components typically involve manually fixing a clamping device to the surface of the steel component. A vibrator then transmits vibrations to the clamping device, causing the steel component to vibrate and thus releasing stress. However, because welded steel components are usually extremely heavy, long, and varied in shape, relying solely on manual labor with lifting equipment for repeated handling, alignment, and manual support system construction is not only extremely time-consuming and labor-intensive, resulting in immense worker fatigue, but also severely limits the effectiveness of these techniques. The overall stress relief process is inefficient and cannot meet the fast-paced, assembly-line production requirements of modern steel structure manufacturing enterprises. Secondly, the complex work environment makes it easy for heavy workpieces to slip and fall, for fixtures to break, or for personnel to be injured during manual handling of heavy workpieces and manual tightening of high-strength clamps, due to personnel exhaustion, improper coordination, or operational errors. Construction safety cannot be effectively guaranteed. Furthermore, manual clamping often fails to ensure consistent and sustained clamping force, and loosening is prone to occur under prolonged high-frequency vibration, leading to unstable treatment results. To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0004] The purpose of this invention is to achieve fully automated online loading of steel structure workpieces, stable suspension support, and efficient post-weld stress relief vibration under ideal boundary conditions by using a composite flexible floating support layer composed of airbags and sponges to isolate base damping, and an innovative automatic rigid clamping mechanism that uses a moving frame descent linkage trigger plate to press against the lever and drive the side clamping arms to close. This overcomes the shortcomings of existing technologies, such as the extremely high labor intensity of workers, the severe limitation on the overall stress relief efficiency, and the instability of the treatment effect caused by manually tightening high-strength clamps under long-term high-frequency vibration conditions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automated post-weld treatment device for welded steel structure components, comprising a mounting frame and a bearing, wherein the bearing is mounted on one side surface of the mounting frame, a rotating shaft is mounted on the inner wall of the bearing, a clamping arm is mounted on the outer surface of the rotating shaft, a lever extension arm is provided on one side surface of the clamping arm, a contact rubber wheel is mounted on the inner wall of the extension arm, a clamping plate rotating shaft is mounted on the inner wall of the clamping arm, a torsion spring is mounted on the outer surface of the clamping plate rotating shaft, a clamping plate is mounted on the outer surface of the clamping plate rotating shaft, a vibrator is fixedly mounted on one side surface of the clamping arm, and a trigger assembly is provided at the top end of the contact rubber wheel. The triggering assembly includes a movable frame, with transport wheels mounted on the inner wall of the movable frame. Drive tracks are mounted on the outer surfaces of the transport wheels. A protective plate is mounted on one side surface of the movable frame, and a drive motor is fixedly mounted on one side surface of the protective plate. An extension frame is mounted on the bottom surface of the movable frame, and a trigger plate is fixedly mounted on the bottom surface of the movable frame. The bottom surface of the trigger plate is in movable contact with the top surface of the contact rubber wheel. A lifting assembly is mounted on the bottom surface of the movable frame. The triggering component also includes a support frame, an airbag is installed on the top surface of the support frame, a shock-absorbing sponge is installed on the inner wall of the airbag, and a vibration isolation rubber is fixedly installed on one side surface of the support frame.

[0006] Furthermore, there are two rotating shafts, which are equidistantly distributed on the inner wall of the mounting frame. There are four clamping arms, which are equidistantly distributed in pairs on the outer surfaces of the two rotating shafts. Each clamping arm has a bearing distributed on its inner wall, and the clamping arms are rotatably connected to the rotating shafts through the bearings.

[0007] Furthermore, the vibrator is mounted on one side surface of one of its clamping arms. Each side surface of the clamping arm is provided with a lever extension arm and a contact rubber wheel. The inner wall of each clamping arm is correspondingly distributed with a clamping plate shaft. The outer surface of each clamping plate shaft is correspondingly distributed with a torsion spring and a clamping plate. One end of the torsion spring contacts the inner wall of the clamping arm, and the other end of the torsion spring contacts one side surface of the inner wall of the clamping plate.

[0008] Furthermore, there are several transport wheels, which are arranged in a linear array and equidistantly distributed on the inner wall of the mobile frame. Each transport wheel extends into the interior of the mobile frame, and the output end of the drive motor is fixedly connected to one end of one of the transport wheels.

[0009] Furthermore, there are two vibration isolation rubbers distributed on one side and the other side of the support frame, and several airbags are distributed in a linear array at equal intervals on the top surface of the support frame, with shock-absorbing sponge correspondingly distributed inside each airbag.

[0010] Furthermore, the lifting assembly includes a base plate, a first lifting plate is rotatably mounted on the top surface of the base plate, a second lifting plate is rotatably mounted on the inner wall of the first lifting plate, a setting plate is mounted on the inner wall of the second lifting plate, an electric telescopic rod is mounted on the top surface of the setting plate, a connecting plate is rotatably mounted on the extended end of the electric telescopic rod, and the other end of the first lifting plate is in sliding contact with the bottom surface of the movable frame.

[0011] Furthermore, the base plate is fixedly connected to the support frame via shock-absorbing sponge, the bottom surface of the second lifting plate slides in contact with the top surface of the movable frame, and the electric telescopic rods are two equidistantly distributed on the top surface of the setting plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: This automated post-weld treatment device for steel structure welded parts uses a composite flexible floating support layer composed of airbags and sponges to isolate base damping, and an innovative automatic rigid clamping mechanism that uses a moving frame to descend and trigger a plate to press against a lever and drive the side clamping arms to close. Ultimately, it achieves fully automated online loading of steel structure workpieces, stable suspended support, and efficient post-weld stress relief vibration under ideal boundary conditions. This overcomes the shortcomings of existing technical workers, which have extremely high labor intensity and severely limit the overall stress relief efficiency. Furthermore, manually tightening high-strength clamps is prone to loosening under long-term high-frequency vibration conditions, leading to unstable treatment results. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall external structure of the present invention is shown. Figure 2 This diagram shows another angle of the overall external structure of the present invention. Figure 3 A schematic diagram of the overall internal structure of the present invention is shown. Figure 4 A schematic diagram of the mounting frame structure of the present invention is shown. Figure 5 This shows a schematic diagram of the internal structure of the invention from another angle. Figure 6 A schematic diagram of the bottom structure of the mobile frame of the present invention is shown. Figure 7 A schematic diagram of the support frame structure of the present invention is shown. Figure 8A schematic diagram of the clamping arm structure of the present invention is shown.

[0014] Legend: 1. Setting frame, 101. Bearing, 102. Rotating shaft, 103. Clamping arm, 104. Lever extension arm, 105. Contact rubber wheel, 106. Clamping plate pivot, 107. Torsion spring, 108. Clamping plate, 109. Vibrator, 2. Moving frame, 201. Transport wheel, 202. Drive track, 203. Protective plate, 204. Drive motor, 205. Trigger plate, 3. Support frame, 301. Airbag, 302. Shock-absorbing sponge, 303. Vibration isolation rubber, 4. Base plate, 401. First lifting plate, 402. Second lifting plate, 403. Setting plate, 404. Electric telescopic rod, 405. Connecting plate. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] like Figures 1-8 As shown, an automated post-weld treatment device for welded steel structures includes a mounting frame 1. Two rotating shafts 102 are equidistantly distributed on the inner wall of the mounting frame 1. Four clamping arms 103 are provided, with each pair of clamping arms 103 equidistantly distributed on the outer surface of each rotating shaft 102. A bearing 101 is correspondingly distributed on the inner wall of each clamping arm 103, and the clamping arm 103 is rotatably connected to the rotating shaft 102 through the bearing 101.

[0018] Each clamping arm 103 has a lever extension arm 104 on one side surface. A contact rubber wheel 105 is mounted on the inner wall of the extension arm, and a trigger assembly is located at the top of the contact rubber wheel 105. Simultaneously, a clamping plate shaft 106 is mounted on the inner wall of each clamping arm 103. A clamping plate 108 and a torsion spring 107 are mounted on the outer surface of this shaft. One end of the torsion spring 107 contacts the inner wall of the clamping arm 103, and the other end contacts one side surface of the inner wall of the clamping plate 108. Furthermore, a vibrator 109 is fixedly mounted on one side surface of one of the clamping arms 103.

[0019] In this embodiment of the invention, the moving frame 2 then continues to descend in the final stage. At this time, the trigger plate 205, which is fixedly installed on the bottom surface of the moving frame 2, moves downward and presses against the contact rubber wheel 105 in the side clamping mechanism of the setting frame 1 directly below. As the moving frame 2 is pressed down further, the trigger plate 205 applies an increasingly larger downward pushing force to the lever extension arm 104 through the contact rubber wheel 105. This pushing force forms a lever torque, which forcibly drives the entire clamping arm 103 to rotate inward around the rotating shaft 102 fixed in the bearing 101 of the setting frame 1.

[0020] The inward rotation of the clamping arm 103 causes the clamping plate 108 mounted on its inner side to move towards the center until the working surface of the clamping plate 108 contacts the side wall of the steel structure workpiece. During this contact process, the key adaptive fitting action occurs. Since there may be slight unevenness or angular deviation on the surface of the steel structure workpiece, when the clamping plate 108 first contacts the workpiece surface and is subjected to compression pressure, this pressure will force the clamping plate 108 to rotate slightly around the clamping plate pivot 106 on which it is mounted. This rotation action allows the plane of the clamping plate 108 to automatically adapt to the angle of the workpiece surface, thereby achieving a close fit between the planes. At the same time, this rotation action of the clamping plate 108 will compress the torsion spring 107 mounted on the clamping plate pivot 106, storing elastic potential energy. At this time, the electric telescopic rod 404 maintains the current retracted position and locks the thrust, maintaining a strong clamping pressure, so that the clamping plate 108 remains in this close fit state, rigidly clamping the workpiece, ensuring that the excitation force can be effectively transmitted.

[0021] Reference Figures 1-8 Specifically, the triggering components include the movable frame 2 and the support frame 3.

[0022] For the mobile frame 2, a number of transport wheels 201 arranged in a linear array and equidistantly distributed are installed on its inner wall. Each transport wheel 201 extends into the interior of the mobile frame 2, and a drive track 202 is installed on the outer surface of these transport wheels 201. A protective plate 203 is installed on one side surface of the mobile frame 2, and a drive motor 204 is fixedly installed on the protective plate 203. The output end of the drive motor 204 is fixedly connected to one end of one of the transport wheels 201. An extension frame and a lifting assembly are installed on the bottom surface of the mobile frame 2, and a trigger plate 205 is fixedly installed thereon. The bottom surface of the trigger plate 205 is in active contact with the top surface of the contact rubber wheel 105.

[0023] For the support frame 3, a number of airbags 301 are installed on its top surface in a linear array and are equally spaced. Each airbag 301 has a corresponding shock-absorbing sponge 302 installed inside. Two vibration isolation rubbers 303 are fixedly distributed on one side and the other side of the support frame 3.

[0024] In this embodiment of the invention, when the upstream transport equipment delivers the steel structure welding workpiece to be processed to the starting end of the mobile frame 2 of this equipment, the drive motor 204 installed on the surface of the protective plate 203 on one side of the mobile frame 2 starts immediately. The output shaft of the drive motor 204 starts to rotate, directly driving one of the transport wheels 201, which is fixedly connected to its output end as the driving wheel, to rotate. Since the outer surfaces of all the transport wheels 201, which are linearly arrayed and equidistantly distributed on the inner wall of the mobile frame 2, are tightly fitted with a drive track 202, the rotating drive track 202 will drive all the transport wheels 201 to rotate synchronously. During this process, the steel structure workpiece located on the top surface of the drive track 202 is subjected to frictional traction and is smoothly moved and transported to the central area of ​​the equipment until it reaches the predetermined working position. Then, the drive motor 204 stops running, and the workpiece positioning is completed.

[0025] Next, the descent support phase begins. The lifting assembly located below the mobile frame 2 starts to operate. The two electric telescopic rods 404 installed on the top surface of the setting plate 403 start to retract synchronously. Through the connecting plate 405, the second lifting plate 402 is pulled to shift, causing the scissor mechanism formed by the first lifting plate 401 and the second lifting plate 402 to gradually fold and retract. This drives the entire mobile frame 2 and the steel structure workpiece it carries to descend smoothly. In the initial process of descent, the bottom surface of the steel structure workpiece will first contact several airbags 301 installed on the top surface of the support frame 3. As the mobile frame 2 continues to descend slightly, the drive track 202 gradually detaches from the bottom surface of the workpiece. The entire weight of the workpiece is gradually transferred and pressed onto these airbags 301. The shock-absorbing sponge 302 filled inside the airbags 301 is deformed under pressure, providing flexible floating support for the workpiece and effectively isolating the workpiece from the rigid foundation.

[0026] The lifting assembly includes a base plate 4, a first lifting plate 401 rotatably mounted on the top surface of the base plate 4, a second lifting plate 402 rotatably mounted on the inner wall of the first lifting plate 401, a setting plate 403 mounted on the inner wall of the second lifting plate 402, an electric telescopic rod 404 mounted on the top surface of the setting plate 403, a connecting plate 405 rotatably mounted on the extended end of the electric telescopic rod 404, the other end of the first lifting plate 401 slidingly contacting the bottom surface of the movable frame 2, the base plate 4 being fixedly connected to the support frame 3 via a shock-absorbing sponge 302, the bottom surface of the second lifting plate 402 slidingly contacting the top surface of the movable frame 2, and two electric telescopic rods 404 being equidistantly distributed on the top surface of the setting plate 403.

[0027] Specific usage procedure: Before using the stress relief vibration table for steel structure welded workpieces, the base part needs to be firmly installed on the predetermined working plane, and the equipment needs to be precisely aligned and adjusted with the upstream external transport line to ensure that the transport planes of both are at the same height level so that the workpiece can be smoothly transferred.

[0028] The equipment begins operation during the loading stage. When the upstream transport equipment delivers the steel structure welding workpiece to be processed to the starting end of the mobile frame 2 of this equipment, the drive motor 204 installed on the surface of the protective plate 203 on one side of the mobile frame 2 starts immediately. The output shaft of the drive motor 204 starts to rotate, directly driving one of the transport wheels 201, which is fixedly connected to its output end, to rotate. Since the outer surfaces of all the transport wheels 201, which are linearly arrayed and equidistantly distributed on the inner wall of the mobile frame 2, are tightly fitted with a drive track 202, the rotating drive track 202 will drive all the transport wheels 201 to rotate synchronously. During this process, the steel structure workpiece located on the top surface of the drive track 202 is moved and transported smoothly towards the central area of ​​the equipment under the action of frictional traction until it reaches the predetermined working position. Then, the drive motor 204 stops running, and the workpiece positioning is completed.

[0029] Next, the descent support phase begins. The lifting assembly located below the mobile frame 2 starts to operate. The two electric telescopic rods 404 installed on the top surface of the setting plate 403 start to retract synchronously. Through the connecting plate 405, the second lifting plate 402 is pulled to shift, causing the scissor mechanism formed by the first lifting plate 401 and the second lifting plate 402 to gradually fold and retract. This drives the entire mobile frame 2 and the steel structure workpiece it carries to descend smoothly. In the initial process of descent, the bottom surface of the steel structure workpiece will first contact several airbags 301 installed on the top surface of the support frame 3. As the mobile frame 2 continues to descend slightly, the drive track 202 gradually detaches from the bottom surface of the workpiece. The entire weight of the workpiece is gradually transferred and pressed onto these airbags 301. The shock-absorbing sponge 302 filled inside the airbags 301 is deformed under pressure, providing flexible floating support for the workpiece and effectively isolating the workpiece from the rigid foundation.

[0030] Subsequently, the moving frame 2 continues its final descent stroke. At this time, the trigger plate 205, which is fixedly installed on the bottom surface of the moving frame 2, moves downward and presses against the contact rubber wheel 105 in the side clamping mechanism of the setting frame 1 directly below. As the moving frame 2 is pressed down further, the trigger plate 205 applies an increasingly larger downward pushing force to the lever extension arm 104 through the contact rubber wheel 105. This pushing force forms a lever torque, which forcibly drives the entire clamping arm 103 to rotate inward around the rotating shaft 102 fixed in the bearing 101 of the setting frame 1.

[0031] The inward rotation of the clamping arm 103 causes the clamping plate 108 mounted on its inner side to move towards the center until the working surface of the clamping plate 108 contacts the side wall of the steel structure workpiece. During this contact process, the key adaptive fitting action occurs. Since there may be slight unevenness or angular deviation on the surface of the steel structure workpiece, when the clamping plate 108 first contacts the workpiece surface and is subjected to compression pressure, this pressure will force the clamping plate 108 to rotate slightly around the clamping plate pivot 106 on which it is mounted. This rotation action allows the plane of the clamping plate 108 to automatically adapt to the angle of the workpiece surface, thereby achieving a close fit between the planes. At the same time, this rotation action of the clamping plate 108 will compress the torsion spring 107 mounted on the clamping plate pivot 106, storing elastic potential energy. At this time, the electric telescopic rod 404 maintains the current retracted position and locks the thrust, maintaining a strong clamping pressure, so that the clamping plate 108 remains in this close fit state, rigidly clamping the workpiece, ensuring that the excitation force can be effectively transmitted.

[0032] When the workpiece is in a stable state supported by the bottom flexible airbag 301 and rigidly clamped by the clamping arms 103 on both sides, it enters the vibration treatment stage. The control system activates the exciter 109 fixedly installed on one side surface of one of the clamping arms 103. The high-frequency excitation force generated by the exciter 109 is directly and efficiently transmitted to the inside of the steel structure workpiece through the rigid clamping arm 103 structure, forcing the workpiece to generate a predetermined mode of resonance or sub-resonance, thereby effectively eliminating and homogenizing the residual welding stress inside.

[0033] After the vibration process is completed, the reset and unloading stage begins. The vibrator 109 stops working, and then the electric telescopic rod 404 of the lifting assembly extends synchronously, pushing the scissor mechanism to unfold and lifting the moving frame 2 upward. As the moving frame 2 rises, the trigger plate 205 fixed at its bottom gradually disengages from the contact rubber wheel 105. Without the downward pressure of the trigger plate 205, each clamping arm 103, under the action of its own restoring force, rotates in the opposite direction around the rotation axis 102 to reset, causing the clamping plate 108 to release the steel structure workpiece and return to its initial position. When the workpiece is initially opened and then released due to the disappearance of pressure, the torsion spring 107 releases its stored elastic potential energy, driving the clamping plate 108 to rotate and reset to the initial angle. At this time, the moving frame 2 continues to rise, driving the track 202 to lift the workpiece again and smoothly remove it from the airbag 301. Finally, the drive motor 204 starts again, driving the drive track 202 to move and transport the processed steel structure workpiece to the other end of the equipment and hand it over to the downstream logistics equipment, completing the entire automated operation cycle and waiting for the next workpiece to enter.

[0034] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic post-weld treatment device for steel structure welded parts, comprising a setting frame (1) and a bearing (101), the bearing (101) is installed on one side surface of the setting frame (1), characterized in that: The inner wall of the bearing (101) is provided with a rotating shaft (102), the outer surface of the rotating shaft (102) is provided with a clamping arm (103), one side surface of the clamping arm (103) is provided with a lever extension arm (104), the inner wall of the extension arm is provided with a contact rubber wheel (105), the inner wall of the clamping arm (103) is provided with a clamping plate rotating shaft (106), the outer surface of the clamping plate rotating shaft (106) is provided with a torsion spring (107), the outer surface of the clamping plate rotating shaft (106) is provided with a clamping plate (108), one side surface of the clamping arm (103) is fixedly provided with a vibration exciter (109), the top end of the contact rubber wheel (105) is provided with a trigger assembly, The trigger assembly comprises a moving frame (2), the inner wall of the moving frame (2) is provided with a conveying wheel (201), the outer surface of the conveying wheel (201) is provided with a driving track (202), one side surface of the moving frame (2) is provided with a protective plate (203), one side surface of the protective plate (203) is fixedly provided with a driving motor (204), the bottom end surface of the moving frame (2) is provided with an extension frame, the bottom end surface of the moving frame (2) is fixedly provided with a trigger plate (205), the bottom end surface of the trigger plate (205) is in movable contact with the top end surface of the contact rubber wheel (105), the bottom end surface of the moving frame (2) is provided with a lifting assembly, The trigger assembly further comprises a supporting frame (3), the top end surface of the supporting frame (3) is provided with an air bag (301), the inner wall of the air bag (301) is provided with a shock absorption sponge (302), one side surface of the supporting frame (3) is fixedly provided with a shock insulation rubber (303).

2. The apparatus for automated post-weld treatment of steel structure weldments according to claim 1, characterized in that, The rotating shaft (102) is two, the two rotating shafts (102) are equidistantly distributed on the inner wall of the setting frame (1), the clamping arm (103) is four, the four clamping arms (103) are equidistantly distributed in two groups on the outer surface of the two rotating shafts (102), and the inner wall of each clamping arm (103) is correspondingly provided with a bearing (101).

3. The apparatus for automated post-weld treatment of steel structure weldments of claim 1, wherein, The vibration exciter (109) is arranged on one side surface of one clamping arm (103), one side surface of each clamping arm (103) is provided with a lever extension arm (104) and a contact rubber wheel (105), the inner wall of each clamping arm (103) is correspondingly provided with a clamping plate rotating shaft (106), the outer surface of each clamping plate rotating shaft (106) is correspondingly provided with a torsion spring (107) and a clamping plate (108), one end of the torsion spring (107) is in contact with the inner wall of the clamping arm (103), and the other end of the torsion spring (107) is in contact with one side surface of the inner wall of the clamping plate (108).

4. The apparatus for automated post-weld treatment of steel structure weldments of claim 1, wherein, The transportation wheels (201) are linearly and equidistantly distributed on the inner wall of the moving frame (2), each of the transportation wheels (201) extends to the inside of the moving frame (2), and the output end of the driving motor (204) is fixedly connected with one end of one of the transportation wheels (201).

5. The apparatus for automated post-weld treatment of steel structure weldments of claim 1, wherein, The shock isolation rubbers (303) are distributed on the top surface of the support frame (3), and each of the air bags (301) is correspondingly provided with a shock absorbing sponge (302) in the inside.

6. The apparatus for automated post-weld treatment of steel structure weldments of claim 1, wherein, The lifting assembly comprises a bottom plate (4), a first lifting plate (401) is rotatably installed on the top surface of the bottom plate (4), a second lifting plate (402) is rotatably installed on the inner wall of the first lifting plate (401), a setting plate (403) is installed on the inner wall of the second lifting plate (402), an electric telescopic rod (404) is installed on the top surface of the setting plate (403), a connecting plate (405) is rotatably installed on the extending end of the electric telescopic rod (404), and the other end of the first lifting plate (401) is in sliding contact with the bottom end surface of the moving frame (2).

7. The apparatus for automated post-weld treatment of steel structure weldments according to claim 6, characterized in that, The bottom plate (4) is fixedly connected between the shock absorbing sponge (302) and the support frame (3), the bottom end surface of the second lifting plate (402) is in sliding contact with the top end surface of the moving frame (2), and the electric telescopic rod (404) is equidistantly distributed on the top surface of the setting plate (403).

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