Steel structure welding device with clamping tool

Abstract

The invention provides a steel structure welding device with a clamping tool, and relates to the field of steel structure welding equipment.The steel structure welding device comprises a welding platform main body, a welding fixed part, a welding movable part, a welding operation sliding rail, a welding workbench, a clamping fixed part, a welding clamping structure and a welding auxiliary mechanism; the welding fixing piece is fixedly connected to the right side of the upper portion of the welding platform body. The welding moving part is slidably connected to the left side of the upper portion of the welding platform body. The welding workbenches are slidably connected to the front side and the rear side of the upper portion of the welding operation sliding rail correspondingly. The number of the clamping and fixing pieces is two, and the two clamping and fixing pieces are each of a semi-cylindrical structure and are fixedly connected to the inner side of the welding overturning chuck correspondingly; the welding clamping structure is arranged on the outer side of the welding moving part; the welding auxiliary mechanism is arranged above the welding platform body, the welding reliability and efficiency are improved, and the problem that in the prior art, workers need to frequently move a climbing frame, and the welding efficiency of platform pile legs is affected is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure welding equipment, in particular to a steel structure welding device with a clamping tool. BACKGROUND

[0002] In the manufacture of marine platform pile legs, the welding device of chord pipe and rack is the core equipment to ensure the welding precision, efficiency and quality. The welding of marine platform pile legs chord pipe and rack needs to be operated according to industry specifications and process evaluation. Before welding, the material is inspected, the groove is processed and cleaned, the jig is fixed to ensure the precision, and the preheating is performed according to the material and plate thickness after the positioning welding. During welding, manual arc welding, submerged arc welding or gas shielded welding is selected according to the scene, the control parameters and line energy are controlled, the stress is reduced by symmetric segmented back welding, real-time monitoring and adjustment are performed, and the deformation is prevented by pre-deformation and rigid fixation after welding. If necessary, correction and heat treatment are performed, and the appearance and non-destructive testing are performed. If it is unqualified, it is returned for repair. In order to ensure the welding quality, the welding clamping tool is generally used to clamp the pile leg, and then the worker holds the welding gun to weld.

[0003] The existing patent with the publication number CN105057857B discloses a process method for assembling and welding marine platform pile legs with fast production speed and high product qualification rate. One pile leg assembly is composed of one rack and two half circular pipes. Before assembly, the rack and half circular pipes should be carefully inspected. The half circular pipes and rack are installed by using a tool, and then the rack is turned over by using a turning device. The assembled and inspected pile leg is hung on an electric heating furnace trolley, and then heated in the furnace. The temperature is 150-200℃, and the temperature in the furnace should be kept uniform. The heated pile leg is placed on the ground. The two welds are in a horizontal state, and manual welding is used for backing welding. Four welders start from the middle of the pile leg and weld symmetrically on both sides. After completion, the pile leg is turned over and continues to be welded. After 1-2 layers of backing welding, the pile leg is hung on the roller frame of the submerged arc welding production line for formal welding. The welded pile leg is sent into a heat treatment furnace at a temperature of 200-280℃ for 2-3 hours, and then taken out of the furnace.

[0004] However, in the existing welding of marine platform pile legs, the volume of the platform pile leg is generally large, and the worker needs to use a climbing frame to weld the chord pipe and rack, which requires more equipment during welding, making it inconvenient to weld the marine platform pile leg. In addition, due to the large axial length of the pile leg, the worker needs to frequently move the climbing frame, which affects the welding efficiency of the platform pile leg. SUMMARY

[0005] Therefore, the steel structure welding device with clamping tool is provided, which has a welding operation platform for convenient operation of workers, saves additional auxiliary tools, improves welding efficiency, supports a detection piece to detect workpiece deformation, alarms and adjusts when exceeding a threshold value, a welding detection motor drives a visual detection piece to move, can monitor a weld in real time, guarantees welding quality, and realizes pile leg deformation prevention, rack protection, convenient operation and welding quality monitoring, and improves welding reliability and efficiency.

[0006] The steel structure welding device with clamping tool comprises a welding platform body, a welding fixing piece, a welding moving piece, welding operation sliding rails, a welding workbench, a welding overturning chuck, clamping fixing pieces, a welding clamping structure and a welding auxiliary mechanism.

[0007] Further, the welding clamping structure comprises an overturning drive motor.

[0008] Further, the welding clamping structure further comprises welding positioning rods.

[0009] Further, the welding clamping structure further comprises clamping moving pieces and clamping driving pieces.

[0010] Further, the welding clamping structure further comprises: a clamping drive oil cylinder; the clamping drive oil cylinder is fixedly connected above the left side of the welding platform body, and the piston rod of the clamping drive oil cylinder is fixedly connected with the welding moving piece.

[0011] Further, the welding auxiliary mechanism comprises: welding support pieces, support lifting pieces and support wheels; the welding support pieces are provided in multiple groups, and the multiple groups of welding support pieces are fixedly connected at the upper middle positions of the welding platform body; the support lifting pieces are provided in multiple groups, and the multiple groups of support lifting pieces are slidingly connected above the inner sides of the welding support pieces; the support wheels are provided in multiple groups, and the multiple groups of support wheels are rotatably connected above the support lifting pieces, and the upper end faces of the multiple groups of support wheels are in contact with the pipe.

[0012] Further, the welding auxiliary mechanism further comprises: support detection pieces; the support detection pieces are provided in multiple groups, and the multiple groups of support detection pieces are all laser displacement sensor structures, and are all provided with emitting ends and receiving ends; the receiving ends and the emitting ends of the multiple groups of support detection pieces are oppositely arranged on the inner sides of the support lifting pieces, and the multiple groups of support detection pieces are all connected in series with an external alarm control circuit.

[0013] Further, the welding auxiliary mechanism further comprises: lifting drive motors, lifting drive lead screws and lifting drive rods; the lifting drive motors are provided in multiple groups, and the multiple groups of lifting drive motors are fixedly connected below the interiors of the welding support pieces; the lifting drive lead screws are provided in multiple groups, and the multiple groups of lifting drive lead screws are rotatably connected below the interiors of the welding support pieces, and are fixedly connected in a coaxial manner with the output shafts of the lifting drive motors; the lifting drive rods are provided in multiple groups, and the multiple groups of lifting drive rods are all composed of two groups of hinged connecting rods, the upper front ends of the multiple groups of lifting drive rods are all hinged with the support lifting pieces, and the upper rear ends of the multiple groups of lifting drive rods are all slidingly connected with the support lifting pieces; the lower front ends of the multiple groups of lifting drive rods are all slidingly connected with the welding support pieces, and the lower rear ends of the multiple groups of lifting drive rods are all hinged with the welding support pieces, the multiple groups of lifting drive lead screws are all threadedly connected with the lower front end sliding blocks of the lifting drive rods, and the multiple groups of lifting drive rods are all scissor structures.

[0014] Further, the welding auxiliary mechanism further comprises: welding operation tables and welding protective covers; the welding operation tables are provided in two groups, and the two groups of welding operation tables are fixedly connected above the welding workbench; the welding protective covers are provided in two groups, and the two groups of welding protective covers are fixedly connected on the inner sides of the welding operation tables.

[0015] Further, the welding auxiliary mechanism further comprises: a welding detection motor, a welding detection slider, a welding detection screw rod, a visual detection piece, a first trigger piece, a second trigger piece and a reset connecting spring; the welding detection motor is provided in two groups, and the two groups of welding detection motors are fixedly connected to the upper left side of the welding workbench; the welding detection slider is provided in two groups, and the two groups of welding detection sliders are slidingly connected to the upper side of the welding workbench; the welding detection screw rod is provided in two groups, and the two groups of welding detection screw rods are coaxially fixedly connected to the output shafts of the welding detection motors and are in threaded connection with the welding detection sliders; the visual detection piece is provided in two groups, and the two groups of visual detection pieces are in the structure of visual detection cameras and are fixedly connected to the inner sides of the welding detection sliders; the first trigger piece is provided in two groups, and the two groups of first trigger pieces are fixedly connected to the inner sides of the welding workbench; the second trigger piece is provided in multiple groups, and the multiple groups of second trigger pieces are fixedly connected to the left and right sides of the supporting lifting piece and form a wedge block structure with the first trigger piece; and the reset connecting spring is provided in multiple groups, and the left and right ends of the multiple groups of reset connecting springs are fixedly connected to the welding workbench.

[0016] Beneficial effects By means of the welding clamping structure, the clamping drive oil cylinder is opened, the piston rod of the clamping drive oil cylinder moves rightward to drive the welding moving piece to move rightward, the welding moving piece moves rightward to drive the welding overturning chuck to move rightward, at this time, the two groups of welding overturning chucks clamp the pile leg, the pile leg is positioned, the quality of subsequent welding is ensured, the clamping drive piece is opened, the piston rod of the clamping drive piece moves downward to drive the clamping moving piece to move downward, the clamping moving piece moves downward to press the upper group of string tubes, the two groups of string tubes are tightly attached to the rack, when the welding of the upper end contact surface of the rack is completed, the overturning drive motor is opened, the output shaft of the overturning drive motor rotates to drive the left group of welding overturning chucks to rotate, the welding overturning chuck rotates to drive the whole pile leg to rotate, the overturning of the pile leg is realized, the multi-angle welding of the pile leg is facilitated, and the welding efficiency is improved.

[0017] By means of the welding auxiliary mechanism, the lifting drive motor is opened, the output shaft of the lifting drive motor rotates to drive the lifting drive screw rod to rotate, the lifting drive screw rod rotates to drive the lifting drive rod to move, the lifting drive rod moves to drive the supporting lifting piece to move upward, the supporting lifting piece moves upward to drive the supporting wheel to move upward, the supporting wheel moves upward to support the pile leg, and deformation of the pile leg due to too large span is avoided.

[0018] The application sets the welding auxiliary mechanism, the second trigger piece is driven upward by the supporting lifting piece, the second trigger piece no longer extrudes the first trigger piece, the two groups of welding workbenches move oppositely under the action of the reset connecting spring, the welding workbench moves oppositely to drive the welding protective cover to cover the outside of the rack, avoiding the sparks from scratching the rack when welding the pile leg, the welding operation table facilitates the workers to perform the welding operation, avoiding the use of additional auxiliary tools, improving the welding efficiency of the pile leg, the supporting detection piece realizes the detection of the deformation of the workpiece during welding, once the deformation of the workpiece exceeds the design threshold of the supporting detection piece, the supporting detection piece opens the external alarm to remind the workers, the workers timely adjust the pile leg, the welding detection motor is opened, the output shaft of the welding detection motor rotates to drive the welding detection lead screw to rotate, the welding detection lead screw rotates to drive the welding detection slide block to move left and right, the welding detection slide block moves left and right to drive the visual detection piece to move left and right, the visual detection piece moves left and right to realize the real-time monitoring of the weld, ensuring the welding quality of the workers, when the pile leg is turned over, the welding operation table is automatically moved outward through the cooperation of the second trigger piece and the first trigger piece, avoiding the workers from moving the climbing frame and other equipment, facilitating the welding operation of the workers, improving the welding efficiency, the welding operation table facilitates the workers to operate, saving the additional auxiliary tools, avoiding the workers from moving the welding operation table, improving the welding efficiency; the supporting detection piece can detect the deformation of the workpiece and alarm and remind adjustment when exceeding the threshold; the welding detection motor drives the visual detection piece to move, the weld can be monitored in real time, and the welding quality is guaranteed. The whole realizes the pile leg deformation prevention, rack protection, operation convenience and welding quality monitoring, and improves the welding reliability and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings in the following description only relate to some embodiments of the present application, but are not limited to the present application.

[0021] In the drawings: Figure 1 is the overall structure schematic diagram of the embodiment of the present application.

[0022] Figure 2 is the flip drive motor structure schematic diagram of the embodiment of the present application.

[0023] Figure 3 is the clamping moving piece structure schematic diagram of the embodiment of the present application.

[0024] Figure 4 is the welding positioning rod structure schematic diagram of the embodiment of the present application.

[0025] Figure 5 is the reset connecting spring structure schematic diagram of the embodiment of the present application.

[0026] Figure 6 is a structural schematic diagram of a welding detection motor of an embodiment of the present application.

[0027] Figure 7 is a structural schematic diagram of a welding protective cover of an embodiment of the present application.

[0028] Figure 8 is a structural schematic diagram of a visual detection piece of an embodiment of the present application.

[0029] Figure 9 is a structural schematic diagram of a second trigger piece of an embodiment of the present application.

[0030] List of reference signs 1, welding platform main body; 101, overturning driving motor; 102, welding positioning rod; 103, clamping moving piece; 104, clamping driving piece; 105, clamping driving oil cylinder; 2, welding fixed piece; 3, welding moving piece; 4, welding operation slide rail; 5, welding workbench; 501, welding support piece; 502, support lifting piece; 503, support wheel; 504, support detection piece; 505, lifting driving motor; 506, lifting driving lead screw; 507, lifting driving rod; 508, welding operation table; 509, welding protective cover; 510, welding detection motor; 511, welding detection slide block; 512, welding detection lead screw; 513, visual detection piece; 514, first trigger piece; 515, second trigger piece; 516, reset connecting spring; 6, welding overturning chuck; 7, clamping fixed piece. DETAILED DESCRIPTION

[0031] Embodiment one: Please refer to Figures 1 to 5 shown: The application provides a steel structure welding device with a clamping tool, which comprises a welding platform body 1, a welding fixing part 2, a welding moving part 3, a welding operation sliding rail 4, a welding workbench 5, a welding overturning chuck 6, a clamping fixing part 7 and a welding clamping structure; the welding fixing part 2 is fixedly connected above the right side of the welding platform body 1; the welding moving part 3 is slidingly connected above the left side of the welding platform body 1; the welding operation sliding rail 4 is provided in two groups, and the two groups of welding operation sliding rails 4 are fixedly connected above the left and right sides of the welding platform body 1 respectively; the welding workbench 5 is provided in two groups, and the two groups of welding workbenches 5 are slidingly connected above the front and rear sides of the welding operation sliding rail 4 respectively; the welding overturning chuck 6 is provided in two groups, one group of the welding overturning chucks 6 on the left side is rotationally connected to the right side of the welding moving part 3, and one group of the welding overturning chucks 6 on the right side is rotationally connected to the left side of the welding fixing part 2; the clamping fixing part 7 is provided in two groups, and the two groups of clamping fixing parts 7 are both semicylindrical structures, and the two groups of clamping fixing parts 7 are fixedly connected to the inner sides of the welding overturning chucks 6 respectively; the welding clamping structure is arranged outside the welding moving part 3; and a welding auxiliary mechanism is arranged above the welding platform body 1.

[0032] The welding clamping structure comprises an overturning drive motor 101, the overturning drive motor 101 is fixedly connected to the left side of the welding moving part 3, the overturning drive motor 101 is a self-locking motor structure, and the output shaft of the overturning drive motor 101 is coaxially fixedly connected to one group of the welding overturning chucks 6 on the left side.

[0033] The welding clamping structure further comprises four welding positioning rods 102, and the four welding positioning rods 102 are fixedly connected to the inner sides of the welding overturning chucks 6.

[0034] The welding clamping structure further comprises clamping moving parts 103 and clamping driving parts 104, the clamping moving parts 103 are provided in two groups, the two groups of clamping moving parts 103 are slidingly connected to the inner sides above the welding overturning chucks 6, and the two groups of clamping moving parts 103 are both semicylindrical structures, the clamping driving parts 104 are provided in two groups, the two groups of clamping driving parts 104 are both hydraulic cylinder structures, the two groups of clamping driving parts 104 are fixedly connected to the inner sides above the welding overturning chucks 6, and the piston rods of the two groups of clamping driving parts 104 are fixedly connected to the clamping moving parts 103.

[0035] The welding clamping structure further comprises a clamping drive oil cylinder 105, the clamping drive oil cylinder 105 is fixedly connected to the left side above the welding platform body 1, and the piston rod of the clamping drive oil cylinder 105 is fixedly connected to the welding moving part 3.

[0036] The specific use and role of the embodiment are as follows: when the string pipe and the rack need to be welded, first, two groups of blind holes are formed at the two ends of the rack, then one group of string pipes is hoisted to the inner side of the clamping fixing piece 7, the right end of the string pipe is overlapped with the right group of clamping fixing pieces 7, the blind holes of the rack are inserted into the right two groups of welding positioning rods 102, the other group of string pipes is overlapped above the rack, the clamping drive oil cylinder 105 is opened, the piston rod of the clamping drive oil cylinder 105 moves to the right to drive the welding moving piece 3 to move to the right, the welding moving piece 3 moves to the right to drive the welding overturning chuck 6 to move to the right, at this time, the two groups of welding overturning chucks 6 clamp the pile leg, the pile leg is positioned, and the quality of subsequent welding is ensured, the clamping drive piece 104 is opened, the piston rod of the clamping drive piece 104 moves downward to drive the clamping moving piece 103 to move downward, the clamping moving piece 103 moves downward to press the upper group of string pipes, and the two groups of string pipes are tightly attached to the rack, when the welding of the upper end contact surface of the rack is completed, the overturning drive motor 101 is opened, the output shaft of the overturning drive motor 101 rotates to drive the left group of welding overturning chucks 6 to rotate, the welding overturning chuck 6 rotates to drive the whole pile leg to rotate, the pile leg is overturned, multi-angle welding of the pile leg is facilitated, and the welding efficiency is improved.

[0037] Embodiment two As Figures 1 to 9 shown: On the basis of embodiment one, the welding auxiliary mechanism is further included, The welding auxiliary mechanism includes welding support pieces 501, support lifting pieces 502, and support wheels 503. The welding support pieces 501 are provided in multiple groups, and the multiple groups of welding support pieces 501 are fixedly connected to the upper middle positions of the welding platform body 1. The support lifting pieces 502 are provided in multiple groups, and the multiple groups of support lifting pieces 502 are slidingly connected to the inner upper sides of the welding support pieces 501. The support wheels 503 are provided in multiple groups, and the multiple groups of support wheels 503 are rotatably connected to the upper sides of the support lifting pieces 502. The upper end faces of the multiple groups of support wheels 503 are in contact with the string pipes.

[0038] The welding auxiliary mechanism further includes support detection pieces 504. The support detection pieces 504 are provided in multiple groups and are all laser displacement sensor structures. The multiple groups of support detection pieces 504 are all provided with emitting ends and receiving ends. The receiving ends and the emitting ends of the multiple groups of support detection pieces 504 are oppositely arranged on the inner sides of the support lifting pieces 502. The multiple groups of support detection pieces 504 are all connected in series with an external alarm control circuit.

[0039] The welding auxiliary mechanism further comprises: a lifting driving motor 505, a lifting driving screw 506 and a lifting driving rod 507; the lifting driving motor 505 is provided in multiple groups, and the multiple groups of lifting driving motors 505 are fixedly connected to the lower inside of the welding support 501; the lifting driving screw 506 is provided in multiple groups, and the multiple groups of lifting driving screws 506 are rotatably connected to the lower inside of the welding support 501, and the multiple groups of lifting driving screws 506 are coaxially fixedly connected to the output shafts of the lifting driving motors 505; the lifting driving rod 507 is provided in multiple groups, and the multiple groups of lifting driving rods 507 are each composed of two groups of hingedly connected connecting rods, the upper front ends of the multiple groups of lifting driving rods 507 are hingedly connected to the support lifting piece 502, and the upper rear ends of the multiple groups of lifting driving rods 507 are slidingly connected to the support lifting piece 502; the lower front ends of the multiple groups of lifting driving rods 507 are slidingly connected to the welding support 501, and the lower rear ends of the multiple groups of lifting driving rods 507 are hingedly connected to the welding support 501, the multiple groups of lifting driving screws 506 are in threaded connection with the lower front end sliding blocks of the lifting driving rods 507, and the multiple groups of lifting driving rods 507 are in scissor structures.

[0040] The welding auxiliary mechanism further comprises: a welding operation table 508 and a welding protective cover 509; the welding operation table 508 is provided in two groups, and the two groups of welding operation tables 508 are fixedly connected to the upper side of the welding workbench 5; the welding protective cover 509 is provided in two groups, and the two groups of welding protective covers 509 are fixedly connected to the inner side of the welding operation table 508.

[0041] The welding auxiliary mechanism further comprises welding detection motors 510, welding detection sliders 511, welding detection screws 512, visual detection pieces 513, first trigger pieces 514, second trigger pieces 515, and reset connecting springs 516. The welding detection motors 510 are provided in two groups, and the two groups of welding detection motors 510 are fixedly connected to the left side of the upper part of the welding workbench 5. The welding detection sliders 511 are provided in two groups, and the two groups of welding detection sliders 511 are slidingly connected to the upper part of the welding workbench 5. The welding detection screws 512 are provided in two groups, and the two groups of welding detection screws 512 are reciprocating screw structures. The two groups of welding detection screws 512 are coaxially fixedly connected to the output shafts of the welding detection motors 510, and the two groups of welding detection screws 512 are threadedly connected to the welding detection sliders 511. The visual detection pieces 513 are provided in two groups, and the two groups of visual detection pieces 513 are visual detection camera structures. The two groups of visual detection pieces 513 are fixedly connected to the inner sides of the welding detection sliders 511. The first trigger pieces 514 are provided in two groups, and the two groups of first trigger pieces 514 are fixedly connected to the inner sides of the welding workbench 5. The second trigger pieces 515 are provided in multiple groups, and the multiple groups of second trigger pieces 515 are fixedly connected to the left and right sides of the support lifting piece 502. The multiple groups of second trigger pieces 515 form wedge block structures with the first trigger pieces 514. The reset connecting springs 516 are provided in multiple groups, and the left and right ends of the multiple groups of reset connecting springs 516 are fixedly connected to the welding workbench 5.

[0042] Specific use and role of the embodiment: when the pile leg clamping is completed, the lifting drive motor 505 is opened, the output shaft of the lifting drive motor 505 rotates to drive the lifting drive lead screw 506 to rotate, the lifting drive lead screw 506 rotates to drive the lifting drive rod 507 to move, the lifting drive rod 507 moves to drive the supporting lifting piece 502 to move upwards, the supporting lifting piece 502 moves upwards to drive the supporting wheel 503 to move upwards, the supporting wheel 503 moves upwards to support the pile leg, avoid deformation of the pile leg due to too large span, and the second trigger 515 is driven upwards by the supporting lifting piece 502, the second trigger 515 no longer presses the first trigger 514, and the two groups of welding workstations 5 move towards each other under the action of the reset connecting spring 516, the welding workstations 5 move towards each other to drive the welding protective cover 509 to cover the outside of the rack, avoid sparks from scratching the rack during welding of the pile leg, the welding operation table 508 facilitates welding operation of workers, avoids the use of additional auxiliary tools, improves welding efficiency of the pile leg, the supporting detection piece 504 realizes detection of deformation of the workpiece during welding, and once the workpiece deformation exceeds the design threshold of the supporting detection piece 504, the supporting detection piece 504 opens an external alarm to remind the workers, the workers are reminded to adjust the pile leg in time, the welding detection motor 510 is opened, the output shaft of the welding detection motor 510 rotates to drive the welding detection lead screw 512 to rotate, the welding detection lead screw 512 rotates to drive the welding detection slider 511 to move left and right, the welding detection slider 511 moves left and right to drive the visual detection piece 513 to move left and right, the visual detection piece 513 moves left and right to realize real-time monitoring of the weld, and the welding quality of the workers is ensured, when the pile leg is turned over, the welding operation table 508 is automatically moved outward through cooperation of the second trigger 515 and the first trigger 514, the workers are avoided from moving the climbing frame and other equipment, welding operation of the workers is facilitated, and welding efficiency is improved.

[0043] In this paper, the following points need attention: 1. The drawings of the embodiment only relate to the structures involved in the embodiment, and other structures can refer to the usual design.

[0044] 2. In the case of no conflict, the features in the embodiment and the embodiment can be combined to obtain a new embodiment.

[0045] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A steel structure welding device with a clamping fixture, characterized in that: The invention comprises a welding platform body (1), a welding fixing part (2), a welding moving part (3), a welding operation slide rail (4), a welding workbench (5), a welding flip chuck (6), a clamping fixing part (7), a welding clamping structure and a welding auxiliary mechanism; the welding fixing part (2) is fixedly connected to the upper right side of the welding platform body (1); the welding moving part (3) is slidably connected to the upper left side of the welding platform body (1); the welding operation slide rail (4) is provided in two groups, and the two groups of welding operation slide rails (4) are respectively fixedly connected to the upper left and right sides of the welding platform body (1); the welding workbench (5) is provided in two groups, and the two groups of welding operation slide rails (4) are respectively fixedly connected to the upper left and right sides of the welding platform body (1); The platform (5) is slidably connected to the front and rear sides of the upper side of the welding operation slide rail (4); the welding flip chuck (6) is provided in two groups, the left group of welding flip chucks (6) is rotatably connected to the right side of the welding movable part (3), and the right group of welding flip chucks (6) is rotatably connected to the left side of the welding fixed part (2); the clamping fixed parts (7) are provided in two groups, both groups of clamping fixed parts (7) are semi-cylindrical structures, and the two groups of clamping fixed parts (7) are fixedly connected to the inner side of the welding flip chuck (6); the welding clamping structure is provided on the outer side of the welding movable part (3); and the welding auxiliary mechanism is provided above the welding platform body (1).

2. The steel structure welding device with a clamping fixture as claimed in claim 1, characterized in that: The welding clamping structure comprises: a flip drive motor (101); the flip drive motor (101) is fixedly connected to the left side of the welding movable part (3); the flip drive motor (101) is a self-locking motor structure; the output shaft of the flip drive motor (101) is coaxially fixedly connected to a group of welding flip chucks (6) on the left side.

3. The steel structure welding device with a clamping fixture as claimed in claim 2, characterized in that: The welding clamping structure further comprises: welding positioning rods (102); four groups of welding positioning rods (102) are provided, and the four groups of welding positioning rods (102) are respectively fixedly connected to the inner side of the welding flip chuck (6).

4. The steel structure welding device with a clamping fixture as claimed in claim 3, characterized in that: The welding clamping structure further comprises: a clamping movable member (103) and a clamping driving member (104); the clamping movable member (103) is provided in two groups, and the two groups of clamping movable members (103) are respectively slidably connected to the inner side and upper side of the welding flip chuck (6), and the two groups of clamping movable members (103) are both semi-cylindrical structures; the clamping driving member (104) is provided in two groups, and the two groups of clamping driving members (104) are both hydraulic cylinder structures, and the two groups of clamping driving members (104) are respectively fixedly connected to the inner side and upper side of the welding flip chuck (6), and the piston rods of the two groups of clamping driving members (104) are respectively fixedly connected to the clamping movable member (103).

5. The steel structure welding device with a clamping fixture as claimed in claim 4, characterized in that: The welding clamping structure further comprises: a clamping drive cylinder (105); the clamping drive cylinder (105) is fixedly connected to the upper left side of the welding platform body (1); and the piston rod of the clamping drive cylinder (105) is fixedly connected to the welding movable part (3).

6. The steel structure welding device with a clamping fixture as claimed in claim 1, characterized in that: The welding auxiliary mechanism comprises: a welding support member (501), a support lifting member (502) and a support wheel (503); the welding support member (501) is provided in multiple groups, and the multiple groups of welding support members (501) are respectively fixedly connected to the middle position above the welding platform body (1); the support lifting member (502) is provided in multiple groups, and the multiple groups of support lifting members (502) are respectively slidably connected to the upper inner side of the welding support member (501); the support wheel (503) is provided in multiple groups, and the multiple groups of support wheels (503) are respectively rotatably connected to the upper part of the support lifting member (502), and the upper end surfaces of the multiple groups of support wheels (503) are respectively in contact with the chord tube.

7. The steel structure welding device with a clamping fixture as claimed in claim 6, characterized in that: The welding auxiliary mechanism further comprises: a support detection member (504); the support detection member (504) is provided in multiple groups, each of the multiple groups of support detection members (504) is a laser displacement sensor structure, each of the multiple groups of support detection members (504) is provided with a transmitting end and a receiving end, the receiving end and the transmitting end of the multiple groups of support detection members (504) are respectively arranged opposite to each other on the inner side of the support lifting member (502), and the multiple groups of support detection members (504) are connected in series with an external alarm control circuit.

8. The steel structure welding device with a clamping fixture as claimed in claim 7, characterized in that: The welding auxiliary mechanism further comprises: a lifting drive motor (505), a lifting drive lead screw (506) and a lifting drive rod (507); the lifting drive motor (505) is provided with multiple groups, and the multiple groups of lifting drive motors (505) are respectively fixedly connected to the inner bottom of the welding support (501); the lifting drive lead screw (506) is provided with multiple groups, and the multiple groups of lifting drive lead screws (506) are respectively rotatably connected to the inner bottom of the welding support (501), and the multiple groups of lifting drive lead screws (506) are respectively coaxially fixedly connected to the output shaft of the lifting drive motor (505); the lifting drive rod (507) is provided with multiple groups, The plurality of lifting drive rods (507) are each composed of two groups of mutually hinged connecting rods. The upper front ends of the plurality of lifting drive rods (507) are hinged to the support lifting member (502), and the upper rear ends of the plurality of lifting drive rods (507) are slidably connected to the support lifting member (502); the lower front ends of the plurality of lifting drive rods (507) are slidably connected to the welding support member (501), and the lower rear ends of the plurality of lifting drive rods (507) are hinged to the welding support member (501). The plurality of lifting drive lead screws (506) are threadedly connected to the lower front end slider of the lifting drive rod (507), and the plurality of lifting drive rods (507) are all scissor-type structures.

9. The steel structure welding device with a clamping fixture as claimed in claim 8, characterized in that: The welding auxiliary mechanism further comprises: a welding operating table (508) and a welding protective cover (509); the welding operating tables (508) are provided in two groups, and the two groups of welding operating tables (508) are respectively fixedly connected above the welding workbench (5); the welding protective cover (509) are provided in two groups, and the two groups of welding protective covers (509) are respectively fixedly connected to the inner side of the welding operating table (508).

10. The steel structure welding device with a clamping fixture as claimed in claim 9, characterized in that: The welding auxiliary mechanism further comprises: a welding detection motor (510), a welding detection slider (511), a welding detection lead screw (512), a visual detection member (513), a first trigger member (514), a second trigger member (515) and a reset connection spring (516); the welding detection motor (510) is provided in two groups, and the two groups of welding detection motors (510) are respectively fixedly connected to the upper left side of the welding workbench (5); the welding detection slider (511) is provided in two groups, and the two groups of welding detection sliders (511) are respectively slidably connected to the upper side of the welding workbench (5); the welding detection lead screw (512) is provided in two groups, and both groups of welding detection lead screws (512) are reciprocating lead screw structures, and the two groups of welding detection lead screws (512) are respectively coaxially fixedly connected to the output shaft of the welding detection motor (510), and the two groups of welding detection lead screws (512) are respectively fixedly connected to the output shaft of the welding detection motor (510). 512) are respectively threadedly connected to the welding detection slider (511); the visual detection member (513) is provided in two groups, both of which are visual detection camera structures, and the two groups of visual detection members (513) are respectively fixedly connected to the inner side of the welding detection slider (511); the first trigger member (514) is provided in two groups, and the two groups of first trigger members (514) are respectively fixedly connected to the inner side of the welding workbench (5); the second trigger member (515) is provided in multiple groups, and the multiple groups of second trigger members (515) are respectively fixedly connected to the left and right sides of the supporting lifting member (502), and the multiple groups of second trigger members (515) respectively form a wedge structure with the first trigger member (514); the reset connection spring (516) is provided in multiple groups, and the left and right ends of the multiple groups of reset connection springs (516) are respectively fixedly connected to the welding workbench (5).

Images