A column support fillet welding system based on a three-dimensional clamping positioning structure

Abstract

The present application relates to the technical field of welding equipment, in particular to a column support fillet welding system based on three-dimensional clamping positioning structure, which comprises a support seat and welding guns distributed left and right on the support seat, two welding guns are staggered in front and back, a clamping positioning mechanism for positioning the node plate and a driving mechanism for driving the welding gun to move along the node plate and beam column weld seam track are installed on the support seat. The node plate is clamped and positioned through the cooperation of the inner clamping block, L-shaped clamping block, beam column hoop and positioning plate, the beam column is fixed left and right by the inner support assembly pushing the inner clamping block to expand left and right synchronously, the center positioning of the node plate is realized, at the same time, the L-shaped clamping block moves downward to fix the support seat up and down, the hoop moves forward to tighten the beam column, at the same time, the transmission assembly drives the positioning plate to move towards each other to clamp the node plate, which avoids the inclination and virtual welding of the node plate and improves the quality of node plate welding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a column support fillet welding system based on a three-dimensional clamping positioning structure. BACKGROUND

[0002] When a steel structure workshop is built, in order to ensure the overall stability and longitudinal stiffness of the workshop framework and improve the wind load resistance, column supports are usually arranged between the beams and columns. The column support is a connecting rod arranged between two adjacent beams and columns. The column support can be divided into cross type, eight type and portal type according to the structure, and the included angle of the column support is generally controlled at 35-55 degrees.

[0003] In order to facilitate the installation of the column support structure, a node plate is usually welded on the beam column (as shown in Figure 11 The node plate and the matching column support are usually welded on the construction site. When the node plate is welded, the worker holds the node plate with his hand to make the node plate vertically aligned with the beam column and the support plate on the beam column for supporting the node plate, and then the node plate is welded by using a welding gun. When the node plate is manually held for welding, it is difficult to accurately control the force of the hand holding, and the node plate is prone to deviation during welding, which affects the quality of the node plate welding. In addition, it is difficult to accurately control the gap between the node plate and the beam column by manual holding, which is prone to cause the gap between the node plate and the beam column to be too large, resulting in a virtual welding condition, which further affects the quality of the welding. SUMMARY

[0004] In order to solve the above problems, the present application provides a column support fillet welding system based on a three-dimensional clamping positioning structure, which comprises a support seat and welding guns distributed left and right on the support seat, two said welding guns are staggered front and back, a clamping positioning mechanism for positioning the node plate is installed on the support seat, and a driving mechanism for driving the welding gun to move along the node plate and beam column weld seam track is installed.

[0005] The clamping positioning mechanism comprises an inner clamping block movably installed on the left and right sides of the support seat and an L-shaped clamping block slidably installed on the top of the support seat and symmetrical left and right, an inner support assembly for driving the inner clamping block and the L-shaped clamping block to clamp and fix the beam column is installed in the inner part of the support seat, a lower moving assembly is installed in the inner part of the support seat, a beam column hoop is detachably installed on the rear side of the support seat, a positioning plate for clamping and positioning the node plate and symmetrical left and right is slidably installed on the top of the support seat, a tightening assembly for driving the beam column hoop to move forward and a transmission assembly for driving the left and right positioning plates to move towards each other are further installed in the inner part of the support seat.

[0006] In a possible implementation form, the inner supporting assembly comprises a two-way threaded rod rotatably arranged in the support base, both ends of the two-way threaded rod are threadedly connected with movable columns, one end of the movable column away from the center of the support base is slidably arranged outside the support base and is fixedly connected with a corresponding inner clamping block, the inside of the support base is provided with a driving motor for driving the two-way threaded rod to rotate, and the output shaft of the driving motor is in transmission connection with the two-way threaded rod through a gear set.

[0007] In a possible implementation form, the downward moving assembly comprises a connecting plate fixedly connected to the front side of the vertical segment of the left and right L-shaped clamping blocks, the connecting plate is provided with left and right symmetrically distributed guide grooves one, the guide groove one comprises two upper and lower staggered horizontal segments and an inclined segment connected between the horizontal segments, the connecting plate is located in front of the movable column, the front side of the movable column is fixedly connected with a guide block one, and the guide block one is slidably arranged in the corresponding guide groove one.

[0008] In a possible implementation form, the right side of the left positioning plate is fixedly connected with positioning columns corresponding to the node plate mounting holes one, and the positioning columns are in plug-in cooperation with the node plate mounting holes.

[0009] In a possible implementation form, the tightening assembly comprises a movable rod slidably arranged on the support base and located in front of the L-shaped clamping block, both ends of the movable rod extend to the outside of the support base, and the top of the movable rod is provided with a insertion slot, both end portions of the beam column hoop are fixedly connected with insertion blocks, the insertion blocks are in upper and lower plug-in cooperation with the corresponding insertion slots, the front side of the vertical segment of the L-shaped clamping block is fixedly connected with a wedge block for pushing the movable rod to slide forward, and the front side of the movable rod and the inner wall of the support base are fixedly connected with a return spring one.

[0010] In a possible implementation form, the transmission assembly comprises a fixed plate fixedly connected to the top of the movable rod, the top of the fixed plate is provided with left and right symmetrically distributed guide grooves two, one end of the guide groove two away from the center of the support base is inclined forward, the bottom of the positioning plate is fixedly connected with guide blocks two, the top end of the guide block two penetrates into the inside of the support base and is slidably arranged in the corresponding guide groove two, and the guide block two is in left and right sliding connection with the support base.

[0011] In a possible implementation form, the driving mechanism comprises a support box fixedly connected to the bottom of the support base, the inside of the support box is slidably arranged with left and right movable seats, the top of the movable seat is provided with a telescopic assembly for pushing the welding gun to move up and down, the support box is further provided with a driving assembly for driving the movable seat to move forward and backward, and the support box is fixedly provided with a blocking strip located behind the movable seat.

[0012] In a possible implementation manner, the telescopic assembly comprises an outer shell fixedly connected to the top of the movable seat, a one-way threaded rod rotatably arranged in the outer shell, the bottom end of the one-way threaded rod rotatably penetrating into the inner portion of the movable seat, a piston rod slidingly arranged on the top of the outer shell, and the top end of the one-way threaded rod is threadedly connected with the piston rod, and the welding gun is fixedly arranged on the top end of the corresponding piston rod.

[0013] In a possible implementation manner, the driving assembly comprises a transmission gear coaxially fixedly connected to the bottom end of the one-way threaded rod, transmission racks slidingly penetratingly arranged on the front and back of the movable seat, the transmission racks are engaged with the transmission gear, the front sides of the left and right transmission racks are fixedly connected with a push plate, the front side of the movable seat and the rear side of the push plate are fixedly connected with a second reset spring, the bottom of the support box is fixedly arranged with an electric push rod for driving the push plate to move forward and backward, and the top of the telescopic section of the electric push rod is fixedly connected with the push plate.

[0014] In a possible implementation manner, the movable seat is further arranged with a locking component for locking the push plate, the locking component comprises a clamping block rotatably arranged in the inner portion of the movable seat and located above the transmission rack, the clamping block is in an inverted V shape and the rear end thereof extends to the rear of the movable seat, the top of the transmission rack is provided with a clamping groove, the front end of the clamping block is clamped in the clamping groove, and the top of the front end of the clamping block and the inner wall of the movable seat are fixedly connected with a compression spring.

[0015] The present application has the following advantages: 1. The inner clamping block, L-shaped clamping block, beam column hoop and positioning plate are cooperated to clamp and position the node plate, the inner clamping block is expanded to the left and right to fix the beam column, the node plate is centrally positioned, the L-shaped clamping block is moved downward to fix the support seat, the hoop is moved forward to tighten the beam column, the positioning plate is moved to clamp the node plate, the node plate and the beam column are tightly fixed together, the node plate is prevented from being inclined and loosely welded, and the quality of the node plate welding is improved.

[0016] 2. Two welding guns staggered in front and back are arranged to weld the two sides of the node plate, the welding points of the left and right welding guns are staggered, the left and right welding guns are prevented from interfering with each other during welding, the quality of the welding seam is improved, and the node plate is prevented from being deformed and burned due to high local temperature.

[0017] 3. The driving mechanism is used to guide the welding gun to weld along the track of the node plate and the beam column, the stability of the welding gun during movement is ensured, the distance between the welding gun head and the welding seam is kept constant during welding, and the quality of the welding is improved. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention in operation.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the clamping and positioning mechanism of the present invention.

[0021] Figure 4 This is a partial cross-sectional view of the clamping and positioning mechanism of the present invention.

[0022] Figure 5 This is a partial diagram of the clamping and positioning mechanism of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the transmission component of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the driving mechanism of the present invention from the first angle.

[0025] Figure 8 This is a three-dimensional structural diagram of the second angle of the driving mechanism of the present invention.

[0026] Figure 9 This is a partial cross-sectional view of the telescopic component of the present invention.

[0027] Figure 10 This is a partial cross-sectional view of the locking component of the present invention.

[0028] Figure 11 This is a schematic diagram of the three-dimensional structure after the gusset plate is welded to the beam and column.

[0029] In the diagram: 1. Support base; 2. Clamping and positioning mechanism; 21. Inner clamping block; 22. L-shaped clamping block; 23. Inner support assembly; 231. Bidirectional threaded rod; 232. Movable column; 233. Drive motor; 24. Lowering assembly; 241. Connecting plate; 242. Guide groove one; 243. Guide block one; 25. Beam-column clamp; 26. Positioning plate; 261. Positioning column; 27. Tightening assembly; 271. Movable rod; 272. Slot; 273. Insert block; 274. Wedge block; 275. Return spring one; 28. Transmission assembly Components; 281. Fixing plate; 282. Guide groove II; 283. Guide block II; 3. Welding torch; 4. Drive mechanism; 41. Support box; 411. Stop bar; 42. Movable seat; 43. Telescopic assembly; 431. Housing; 432. One-way threaded rod; 433. Piston rod; 44. Drive assembly; 441. Transmission gear; 442. Transmission rack; 443. Push plate; 444. Return spring II; 445. Electric push rod; 446. Locking component; 4461. Locking block; 4462. Locking groove; 4463. Compression spring. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Please see Figures 1-2 A column support fillet weld welding system based on a three-dimensional clamping and positioning structure includes a support base 1 and two welding torches 3 arranged alternately on the support base 1. The support base 1 is equipped with a clamping and positioning mechanism 2 for positioning the gusset plate and a driving mechanism 4 for moving the welding torches 3 along the weld trajectory between the gusset plate and the beam / column. It should be noted that the welding torches 3 are plasma arc welding torches.

[0032] By setting up two welding torches 3 that are staggered front and back to weld on both sides of the node plate simultaneously, the welding points of the two welding torches 3 are staggered, which avoids mutual interference between the welding torches 3 on the left and right sides during welding, thus avoiding affecting the quality of the weld. It can also prevent the node plate from overheating locally, causing deformation and burn-through.

[0033] Please see Figures 1-6The clamping and positioning mechanism 2 includes inner clamping blocks 21 movably installed on the left and right sides of the support base 1 and L-shaped clamping blocks 22 slidably installed on the top of the support base 1 and symmetrically positioned on the left and right. The support base 1 is equipped with an inner support assembly 23 and a lowering assembly 24 that drive the inner clamping blocks 21 and L-shaped clamping blocks 22 to clamp and fix the beam and column respectively. A beam and column clamping hoop 25 is detachably installed on the rear side of the support base 1. A positioning plate 26 symmetrically positioned on the left and right sides for clamping and positioning the node plate is slidably installed on the top of the support base 1. The support base 1 is also equipped with a tightening assembly 27 for driving the beam and column clamping hoop 25 to move forward and a transmission assembly 28 for driving the left and right positioning plates 26 to move towards each other.

[0034] Please see Figures 3-5 The inner support assembly 23 includes a bidirectional threaded rod 231 rotatably installed inside the support base 1. Both ends of the bidirectional threaded rod 231 are threadedly connected to movable columns 232. The end of the movable column 232 away from the center of the support base 1 slides through to the outside of the support base 1 and is fixedly connected to the corresponding inner clamping block 21. The support base 1 is equipped with a drive motor 233 for driving the bidirectional threaded rod 231 to rotate. The output shaft of the drive motor 233 is connected to the bidirectional threaded rod 231 through a gear set.

[0035] Please see Figures 3-5 The downward moving component 24 includes a connecting plate 241 fixedly connected to the front side of the vertical section of the two L-shaped clamping blocks 22 on the left and right. The connecting plate 241 has guide grooves 242 symmetrically distributed on the left and right. The guide grooves 242 include two horizontal sections that are staggered vertically on the left and right and an inclined section connecting the horizontal sections. The connecting plate 241 is located in front of the movable column 232. A guide block 243 is fixedly connected to the front of the movable column 232. The guide block 243 is slidably installed in the corresponding guide groove 242.

[0036] Please see Figure 1 , Figure 3 and Figure 6 The right side of the left positioning plate 26 is fixedly connected with positioning posts 261 that correspond one-to-one with the mounting holes of the node plate. The positioning posts 261 are inserted into the mounting holes of the node plate.

[0037] In practical use, when installing the node plate, first place the node plate between the left and right positioning plates 26, aligning the mounting holes on the node plate with the positioning posts 261. Then, move the node plate to the left so that the mounting holes on the node plate fit onto the corresponding positioning posts 261. Afterward, the transmission assembly 28 drives the left and right positioning plates 26 to move towards each other to clamp the node plate. Setting the positioning posts 261 to limit the node plate can prevent movement between the node plate and the positioning plates 26. The left and right positioning plates 26 move towards each other synchronously to clamp the node plate, achieving centered positioning of the node plate and improving the accuracy of the positioning of the node plate and the beam and column.

[0038] Please see Figures 2-5 The tightening assembly 27 includes a movable rod 271 that is slidably mounted on the support base 1 and located in front of the L-shaped clamp 22. The left and right ends of the movable rod 271 extend to the outside of the support base 1 and each end of the movable rod 271 has a slot 272 on its top. Both ends of the beam-column clamp 25 are fixedly connected to insert blocks 273. The insert blocks 273 are inserted into the corresponding slots 272. The front side of the vertical section of the L-shaped clamp 22 is fixedly connected to a wedge block 274 for pushing the movable rod 271 to slide forward. A return spring 275 is fixedly connected between the front side of the movable rod 271 and the inner wall of the support base 1.

[0039] Please see Figures 3-6 The transmission assembly 28 includes a fixed plate 281 fixedly connected to the top of the movable rod 271. The top of the fixed plate 281 is provided with guide grooves 282 that are symmetrically distributed on the left and right. The end of the guide groove 282 away from the center of the support base 1 is inclined forward. The bottom of the positioning plate 26 is fixedly connected to a guide block 283. The top of the guide block 283 penetrates into the interior of the support base 1 and is slidably installed in the corresponding guide groove 282. The guide block 283 is slidably connected to the support base 1 on the left and right.

[0040] Please see Figures 1-6 In practical use, the node plate is placed between the left and right positioning plates 26, and the support base 1 is placed below the horizontal plate, with the node plate above the horizontal plate. At this time, the inner clamping block 21 is located inside the beam and column. Then, the beam and column clamping hoop 25 is wrapped around the outside of the beam and column. The insert block 273 at the end of the beam and column clamping hoop 25 is then inserted into the slots 272 at both ends of the movable rod 271. The drive motor 233 drives the bidirectional threaded rod 231 to rotate, causing the bidirectional threaded rod 231 to drive the movable column 232 and the inner clamping block 21 to move away from the center of the support base 1, so that the inner clamping block 21 is clamped on the inside of the beam and column, fixing the support base 1 left and right, and thus aligning the node plate left and right, improving the stability of the node plate during welding.

[0041] When the movable column 232 moves away from the center of the support seat 1, the movable column 232 drives the guide block 243 to move away from the center of the support seat 1. The guide block 243 slides along the guide groove 242 to the end away from the center of the support seat 1, causing the connecting plate 241 to drive the L-shaped clamping block 22 to move downward, so that the horizontal section of the L-shaped clamping block 22 is pressed against the beam and column support plate, thereby fixing the support seat 1 vertically and preventing the node plate from moving up and down during welding, thus improving the accuracy of the node plate welding. When the horizontal section of the L-shaped clamping block 22 is pressed against the beam and column support plate, the inner clamping block 21 has not yet clamped the beam and column. Then, the movable column 232 drives the inner clamping block 21 to continue moving away from the center of the support seat 1. At this time, the guide block 243 moves along the horizontal section above the guide groove 242, keeping the L-shaped clamping block 22 in a clamped state until the inner clamping block 21 clamps the beam and column.

[0042] When the L-shaped clamp 22 moves downward, it will drive the wedge block 274 to move downward as well. The wedge block 274 will push the movable rod 271 to move backward. Then the movable rod 271 will pull the front end of the beam-column clamp 25 to move backward, so that the beam-column clamp 25 is tightened on the outside of the beam-column. At this time, the return spring 275 is in a compressed state. As the beam-column clamp 25 gradually tightens, the support seat 1 will drive the node plate to be tightly pressed against the beam-column front and back, preventing large gaps between the node plate and the beam-column and avoiding the occurrence of incomplete welding.

[0043] As the movable rod 271 moves backward, it drives the fixed plate 281 to move backward as well. The guide groove 282 on the top of the fixed plate 281 guides the guide block 283 to move towards the center of the support base 1. The guide block 283 drives the corresponding positioning plate 26 to move towards the center of the support base 1, so that the two positioning plates 26 on the left and right move closer to each other, and center and clamp the node plate, which improves the accuracy and stability of the node plate welding and prevents the node plate from being skewed or misaligned during the welding process.

[0044] After welding, the drive motor 233 drives the bidirectional threaded rod 231 to rotate in the opposite direction, causing the movable column 232 to move the inner clamping block 21 towards the center of the support base 1, releasing the inner clamping block 21 from the beam and column. The movable column 232 then drives the guide block 243 to move towards the center of the support base 1, causing the guide block 243 to push the connecting plate 241 and the L-shaped clamping block 22 upward, releasing the L-shaped clamping block 22 from the beam and column support plate. As the L-shaped clamping block 22 moves upward, it drives the wedge block 274 upward, releasing the pushing force on the movable rod 271. At this point, the restoring force of the return spring 275 pushes the movable rod 271 to move backward. The movable rod 271 drives the beam-column clamp 25 to move backward, loosening the clamp on the beam-column. At the same time, the movable rod 271 drives the fixed plate 281 to move backward, causing the guide groove 282 to guide the guide block 283 and the positioning plate 26 to move away from the center of the support seat 1, so that the positioning plate 26 releases its clamp on the node plate. Finally, the beam-column clamp 25 is pushed upward, causing the insert block 273 to separate from the slot 272. Finally, the support seat 1 and the beam-column clamp 25 are removed respectively.

[0045] Please see Figure 1 , Figure 2 , Figure 7 and Figure 8 The drive mechanism 4 includes a support box 41 fixedly connected to the bottom of the support base 1. Inside the support box 41, movable seats 42 are slidably installed in the front and back and distributed in the left and right. A telescopic component 43 for pushing the welding torch 3 to move up and down is installed on the top of the movable seat 42. A drive component 44 for driving the movable seat 42 to move back and forth is also installed on the support box 41. A stop bar 411 located behind the movable seat 42 is fixedly installed on the support box 41.

[0046] Please see Figure 7 and Figure 9 The telescopic assembly 43 includes a housing 431 fixedly connected to the top of the movable seat 42. A one-way threaded rod 432 is rotatably mounted inside the housing 431, with its bottom end rotatably penetrating into the interior of the movable seat 42. A piston rod 433 is slidably mounted on the top of the housing 431, with its top end threadedly connected to the piston rod 433. The welding torch 3 is fixedly mounted on the top end of the corresponding piston rod 433. It should be noted that since the two welding torches 3 are staggered front to back, the two movable seats 42 are also staggered front to back.

[0047] Please see Figures 7-9The drive assembly 44 includes a transmission gear 441 coaxially fixedly connected to the bottom end of the one-way threaded rod 432. A transmission rack 442 is slidably mounted on the movable seat 42, and the transmission rack 442 meshes with the transmission gear 441. A push plate 443 is fixedly connected to the front side of the two transmission racks 442. A return spring 444 is fixedly connected between the front side of the movable seat 42 and the rear side of the push plate 443. An electric push rod 445 that drives the push plate 443 to move back and forth is fixedly installed at the bottom of the support box 41. The top of the telescopic section of the electric push rod 445 is fixedly connected to the push plate 443. A space is reserved below the stop bar 411 for the transmission rack 442 to pass through.

[0048] Please see Figure 9 and Figure 10 The movable seat 42 is also equipped with a locking component 446 for locking the push plate 443. The locking component 446 includes a locking block 4461 rotatably installed inside the movable seat 42 and located above the transmission rack 442. The locking block 4461 is in the shape of an inverted V and its rear end extends to the rear of the movable seat 42. The top of the transmission rack 442 is provided with a slot 4462. The front end of the locking block 4461 is engaged in the slot 4462. A compression spring 4463 is fixedly connected between the top of the front end of the locking block 4461 and the inner wall of the movable seat 42.

[0049] Please see Figure 1 , Figure 2 , Figures 6-10 In actual use, in the initial state, the nozzle of the welding torch 3 is located in front of the bottom edge of the node plate. At this time, the movable seat 42 is located in front of the stop bar 411 and the two are not in contact. The front end of the compression spring 4463 is engaged in the slot 4462. After the node plate is positioned, the push plate 443 is driven to move backward by the electric push rod 445. The push plate 443 pushes the transmission rack 442 to move backward. Since the locking block 4461 locks the transmission rack 442 and the movable seat 42 together, the movable seat 42 will move backward together under the push of the transmission rack 442. The movable seat 42 drives the welding torch 3 to move backward through the telescopic component 43, so that the welding torch 3 welds the weld seam on the bottom edge of the node plate.

[0050] When the welding torch 3 completes the weld on the bottom edge of the node plate, the movable seat 42 moves backward to abut against the stop bar 411. Before the movable seat 42 abuts against the stop bar 411, the rear end of the locking block 4461 abuts against the stop bar 411. Then, as the movable seat 42 continues to move backward, the locking block 4461 rotates clockwise under the push of the stop bar 411, causing the front end of the locking block 4461 to tilt upward and separate from the locking groove 4462. The compression spring 4463 is compressed and contracts, releasing the transmission rack 442 from the movable seat 42. After that, the movable seat 42 abuts against the stop bar 411. As the push plate 443 continues to move backward, the push plate 443 pushes... The drive rack 442 moves backward, at which point the return spring 444 is compressed and contracts. The drive rack 442 passes through the movable seat 42 and moves backward, driving the drive gear 441 and the one-way threaded rod 432 to rotate. This causes the one-way threaded rod 432 to drive the piston rod 433 to move upward. The piston rod 433 then drives the corresponding welding torch 3 to move upward, allowing the welding torch 3 to weld the weld seam on the rear side of the node plate. The movable seat 42 and the telescopic assembly 43 guide the welding torch 3 along the trajectory of the weld seam between the node plate and the beam-column, improving the welding stability of the welding torch 3, maintaining a constant distance between the welding torch 3 tip and the weld seam, and improving the welding quality. It should be noted that when the left movable seat 42 abuts against the stop bar 411, the right movable seat 42 has not yet abutted against the stop bar 411. At this time, the right movable seat 42 will continue to move backward until it abuts against the stop bar 411.

[0051] After welding is completed, the electric push rod 445 pushes the push plate 443 forward. At this time, the return spring 444 provides a backward restoring force to the movable seat 42, keeping the movable seat 42 in contact with the stop bar 411. The push plate 443 drives the transmission rack 442 to move forward, causing the transmission rack 442 to drive the transmission gear 441 and the one-way threaded rod 432 to rotate in the opposite direction. Then, the one-way threaded rod 432 drives the piston rod 433 and the corresponding welding torch 3 to move downward. When the return spring 444 is about to return to its original position... Over time, the locking block 4461 rotates counterclockwise under the rebound force of the compression spring 4463, causing the movable seat 42 to gradually separate from the stop bar 411. At this time, the front end of the locking component 446 will contact the top of the transmission rack 442. As the transmission rack 442 moves forward, the front end of the locking block 4461 will re-engage in the slot 4462. Then, the transmission rack 442 will drive the movable seat 42 to move forward together. At this time, the movable seat 42 will then drive the corresponding welding torch 3 to move forward and reset through the telescopic component 43.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] The embodiments described herein are 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 based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A column support fillet weld welding system based on a three-dimensional clamping and positioning structure, characterized in that: It includes support seat (1) and support seat (1) left and right distribution of welding gun (3), two welding gun (3) staggered front and back, the support seat (1) is installed for positioning the node plate clamping positioning mechanism (2) and drive welding gun (3) along the node plate and beam column weld track movement drive mechanism (4); The clamping positioning mechanism (2) includes the inner clamping block (21) movably installed on the left and right sides of the support seat (1) and the L-shaped clamping block (22) slidably installed on the top of the support seat (1) and symmetrical left and right, the inside of the support seat (1) is provided with inner support assembly (23), lower moving assembly (24) for driving the inner clamping block (21) and L-shaped clamping block (22) to clamp and fix the beam column respectively, the rear side of the support seat (1) is detachably provided with beam column hoop (25), the top of the support seat (1) is slidably provided with positioning plate (26) for clamping and positioning the node plate and symmetrical left and right, the inside of the support seat (1) is further provided with tightening assembly (27) for driving the beam column hoop (25) to move forward and transmission assembly (28) for driving the left and right positioning plates (26) to move towards each other. The inner clamping block (21) moves away from the center of the support seat (1) to clamp the beam column left and right, the inner clamping block (21) drives the lower moving assembly (24) to drive the L-shaped clamping block (22) to move downward to clamp the beam column support plate upward, the L-shaped clamping block (22) moves downward and drives the tightening assembly (27) to drive the beam column hoop (25) to move forward to clamp the beam column front and back, the positioning plate (26) moves towards each other to clamp the node plate to implement three-dimensional positioning.

2. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 1, characterized in that: The inner support assembly (23) includes a double-threaded rod (231) rotatably installed in the inside of the support seat (1), the left and right ends of the double-threaded rod (231) are threadedly connected with movable columns (232), one end of the movable column (232) away from the center of the support seat (1) is slidably penetrated to the outside of the support seat (1) and fixedly connected with the corresponding inner clamping block (21), the inside of the support seat (1) is provided with a drive motor (233) for driving the double-threaded rod (231) to rotate, the output shaft of the drive motor (233) is drivingly connected with the double-threaded rod (231) through a gear set.

3. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 2, characterized in that: The lower moving assembly (24) includes a connecting plate (241) fixedly connected to the front side of the vertical segment of the left and right L-shaped clamping blocks (22), the connecting plate (241) is provided with left and right symmetrical guide grooves (242), the guide groove (242) includes two upper and lower staggered horizontal segments and an inclined segment connected between the horizontal segments, the connecting plate (241) is located in front of the movable column (232), the front side of the movable column (232) is fixedly connected with a guide block (243), the guide block (243) is slidably installed in the corresponding guide groove (242).

4. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 1, characterized in that: The right side of the left positioning plate (26) is fixedly connected with a positioning column (261) corresponding to the node plate mounting hole, the positioning column (261) is inserted and matched with the node plate mounting hole.

5. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 1, characterized in that: The tightening assembly (27) comprises a movable rod (271) slidingly mounted on the support base (1) and located at the front side of the L-shaped clamping block (22), both ends of the movable rod (271) extend to the outside of the support base (1), and a slot (272) is formed in the top of each end, both ends of the beam column hoop (25) are fixedly connected with an insertion block (273), the insertion block (273) is inserted into the corresponding slot (272) in an up-down manner, and the front side of the vertical section of the L-shaped clamping block (22) is fixedly connected with a wedge-shaped block (274) for pushing the movable rod (271) to slide forward, and the front side of the movable rod (271) and the inner wall of the support base (1) are fixedly connected with a reset spring (275).

6. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 5, characterized in that: The transmission assembly (28) comprises a fixed plate (281) fixedly connected to the top of the movable rod (271), the top of the fixed plate (281) is provided with left-right symmetrically distributed guide grooves (282), one end of the guide groove (282) away from the center of the support base (1) is inclined forward, and the bottom of the positioning plate (26) is fixedly connected with a guide block (283), the top end of the guide block (283) penetrates into the inside of the support base (1) and is slidingly installed in the corresponding guide groove (282), and the guide block (283) is slidingly connected with the support base (1).

7. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 1, characterized in that: The driving mechanism (4) comprises a support box (41) fixedly connected to the bottom of the support base (1), the inside of the support box (41) is slidingly installed with left-right distributed movable seats (42), the top of the movable seat (42) is provided with a telescopic assembly (43) for pushing the welding gun (3) to move up and down, the support box (41) is further provided with a driving assembly (44) for driving the movable seat (42) to move forward and backward, and the support box (41) is fixedly installed with a blocking strip (411) located behind the movable seat (42).

8. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 7, characterized in that: The telescopic assembly (43) comprises an outer shell (431) fixedly connected to the top of the movable seat (42), a one-way threaded rod (432) is rotatably installed in the inside of the outer shell (431), the bottom end of the one-way threaded rod (432) rotatably penetrates into the inside of the movable seat (42), a piston rod (433) is slidingly installed on the top of the outer shell (431), the top end of the one-way threaded rod (432) is threadedly connected with the piston rod (433), and the welding gun (3) is fixedly installed at the top end of the corresponding piston rod (433).

9. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 8, characterized in that: The drive assembly (44) includes transmission gear (441) coaxially fixedly connected at the bottom end of the one-way threaded rod (432), transmission rack (442) is installed through on the front and rear sliding of the movable seat (42), the transmission rack (442) is engaged with the transmission gear (441), the front side of the left and right transmission rack (442) is fixedly connected with the push plate (443), the front side of the movable seat (42) and the rear side of the push plate (443) are fixedly connected with the reset spring two (444), the bottom of the support box (41) is fixedly installed with the electric push rod (445) for driving the push plate (443) to move forward and backward, and the top of the electric push rod (445) is fixedly connected with the push plate (443).

10. The intercolumnar bracing fillet weld system based on a three-dimensional clamping positioning structure according to claim 9, characterized in that: The movable seat (42) is also provided with a locking member (446) for locking the push plate (443), the locking member (446) comprises a clamping block (4461) rotatably installed in the movable seat (42) and located above the transmission rack (442), the clamping block (4461) is in inverted V shape and its rear end extends to the rear of the movable seat (42), a clamping groove (4462) is formed in the top of the transmission rack (442), the front end of the clamping block (4461) is clamped in the clamping groove (4462), and a compression spring (4463) is fixedly connected between the top of the front end of the clamping block (4461) and the inner wall of the movable seat (42).

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