Steel structure welding positioning device for constructional engineering

Abstract

The invention discloses a steel structure welding positioning device for constructional engineering, and relates to the technical field of welding equipment, the steel structure welding positioning device comprises a welding table, the top of the welding table is provided with a rotating mechanism, and the rotating mechanism is provided with a welding fixing assembly. The upper surface and the lower surface of the steel structure pipe fitting are clamped through the welding clamping plate, the auxiliary clamping plate makes contact with the side face of the steel structure pipe fitting, the steel structure pipe fitting is pushed to the center position of the upper surface of the welding clamping plate, and the steel structure pipe fitting can be centralized and positioned; meanwhile, the side face of the steel structure pipe fitting can be fixed, the four faces of the steel structure pipe fitting can be supported and limited in cooperation with welding clamping plates, a transmission screw can drive a moving block to move along the transmission screw, and at the moment, the moving block can drive an inner clamping block to move; and the inner clamping blocks move to make contact with the inner wall of the steel pipe and extrude the inner wall of the steel pipe, so that the inner wall of the pipe fitting is fixed, and the stability in the steel structure welding process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a steel structure welding positioning device for construction engineering. Background Art

[0002] Steel structure engineering is a structure made mainly of steel materials, mainly composed of steel beams, steel columns, steel trusses and other components made of steel and steel plates. Each component or part is usually connected by welds, bolts or rivets. It is one of the main types of building structures. Because of its light weight and simple construction, it is widely used in large factories, bridges, stadiums, super high-rise buildings and other fields.

[0003] Most of the existing steel structures are connected by welding. When welding steel structures, the welding workpiece and the workpiece to be welded need to be fitted together and then processed. The workpieces need to be clamped and positioned when assembled. During the welding process, traditional welding equipment can only fix and position the upper and lower sides of the steel structure pipe fittings. The fixing and positioning effect is poor, which causes the weld point position to easily shift during the welding process, resulting in poor welding quality. Therefore, we proposed a steel structure welding positioning device for construction engineering. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a steel structure welding positioning device for construction engineering, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel structure welding positioning device for construction engineering, comprising a welding table, a rotating mechanism is installed on the top of the welding table, a welding fixing assembly is installed on the rotating mechanism, side plates are fixedly connected to both sides of the upper surface of the welding table, a top plate is installed on the top of the side plate, a welding machine is installed on the top plate, a welding assembly is installed on the top plate, and the rotating mechanism is also provided with an auxiliary positioning mechanism. The auxiliary positioning mechanism comprises a hydraulic telescopic cylinder, a welding point positioning plate 1 and a welding point positioning plate 2. A welding point positioning plate 1 is installed on the top of the hydraulic telescopic cylinder. Both ends of the welding point positioning plate 1 are provided with U-shaped mounting plates. The inner cavity of the U-shaped mounting plate is installed with the welding point positioning plate 2 through a screw. A threaded push rod is fixedly installed on one side of the U-shaped mounting plate. The threaded push rod is slidably installed to the inner cavity of the welding point positioning plate 1. A worm gear 1 is threadedly installed on the surface of the threaded push rod. The worm gear 1 is rotatably connected to the welding point positioning plate 1. A worm gear 1 is rotatably installed in the inner cavity of the welding point positioning plate 1, and the worm gear 1 is meshed with the worm gear 1. One end of the worm gear 1 extends to the outside of the welding point positioning plate 1 and is connected with a rotating rod. An electric push rod 1 is installed inside the welding point positioning plate 1 and the welding point positioning plate 2. The top of the electric push rod 1 is connected with a bearing block, and the middle of the bearing block is connected with a contact sensor. A positioning rod is fixedly connected to one side of the U-shaped mounting plate, and the positioning rod is slidably mounted to an inner cavity of the welding point positioning plate.

[0006] The middle parts of the welding point positioning plate 1 and the welding point positioning plate 2 are fixedly connected with LED spotlights, and above the LED spotlights and inside the welding point positioning plate 2 and the welding point positioning plate 1 are fixedly connected with tempered glass plates.

[0007] Preferably, the rotating mechanism includes a rotating disk and a second driving motor. The rotating disk is rotatably installed in the inner cavity of the welding table. The second driving motor is installed inside the welding table. The output end of the second driving motor is connected to a driving gear. A gear ring is fixedly connected to the outer side of the rotating disk, and the gear ring is meshed with the driving gear. Sliding grooves are provided on both sides of the upper surface of the rotating disk, and a bidirectional screw rod is rotatably installed in the inner cavity of the sliding groove.

[0008] Preferably, the welding fixing assembly comprises a fixing frame, the two end surfaces of the bidirectional screw rod 1 and the fixing frames are threadedly installed in the inner cavity of the sliding groove, the top of the fixing frame extends to the outside of the sliding groove, the inner cavity of the rotating disk is installed with a driving motor 1, and the output shaft of the driving motor 1 is fixedly connected to the bidirectional screw rod 1; The number of the fixed frames is two and they are arranged in a mirror image with the center of the circle of the welding table. The outside of the fixed frame is fixedly connected with a rotating motor, the inner cavity of the fixed frame is rotatably installed with a rotating frame, and the output shaft of the rotating motor is fixedly connected to the side of the rotating frame. The inner cavity of the rotating frame is rotatably installed with a two-way screw rod, and both ends of the two-way screw rods are threadedly installed with driving blocks, and two adjacent driving blocks are mirror-symmetrical. A driving motor is fixedly installed on the top of the inner cavity of the rotating frame, and the output shaft of the two driving motors is fixedly connected to one end of the two-way screw rods. A rotating column is rotatably installed inside one side of the driving block, and a welding splint is fixedly connected to one end of the rotating column. A transmission worm gear is fixedly sleeved on the outer side of the rotating column, and a transmission worm is rotatably installed inside the driving block, and the transmission worm is meshed with the transmission worm gear. A push spring is fixedly connected to the inner cavity of the transmission worm, and one end of the push spring is fixedly connected to a rectangular guide column, and the rectangular guide column is slidably installed to the inner cavity of the transmission worm. The top of the rectangular guide column located below is fixedly connected with a positioning cylinder, and the inner cavity of the positioning cylinder is adapted to the rectangular guide column.

[0009] Preferably, a moving cavity is provided on one side of the driving block, and guide grooves are provided in the inner cavity of the driving block and on both sides of the inner wall of the moving cavity, an inner clamping block is slidably installed in the inner cavity of the moving cavity, both ends of the inner clamping block are connected to guide blocks, and a moving block is slidably installed in the inner cavity of the inner clamping block, a transmission screw is rotatably installed inside the driving block, and a rectangular guide column 2 is slidably installed in the inner cavity of the transmission screw, a pushing spring is fixedly connected to one end of the inner cavity of the transmission screw, and the pushing spring is fixedly connected to the rectangular guide column 2, a positioning cylinder 1 is fixedly connected to the top end of the rectangular guide column 2 located below, and the positioning cylinder 1 is adapted to the rectangular guide column 2, and one end of the transmission screw passes through the moving block and is threadedly connected to the moving block.

[0010] An asynchronous motor 1 is installed inside the driving block located above, and the output shaft of the asynchronous motor 1 is fixedly connected to the corresponding transmission screw. A driving motor 1 is fixedly connected to the top of the driving block located above, and the driving motor 1 is fixedly connected to the corresponding transmission worm.

[0011] Preferably, the surface of the welding clamping plate is provided with a groove, and an arc clamping plate is installed inside the groove by bolts, an extension plate is slidably installed inside the welding clamping plate, one side of the extension plate is fixedly connected to a rack, a push rod is rotatably installed in the inner cavity of the extension plate, one end of the push rod is provided with a threaded section, one end of the push rod is fixedly connected to an auxiliary clamping plate, the inside of the welding clamping plate is fixedly connected to a fixing cylinder, the fixing cylinder is slidably sleeved to the surface of the push rod, the inner end of the inner cavity of the fixing cylinder is fixedly connected to an internal thread block, and the internal thread block is threadedly connected to the threaded section on the push rod. A gear is rotatably installed in the inner cavity of the welding splint, and the gear is meshed with a rack on one side of the extension plate. A worm wheel 2 is fixedly installed on the surface of the gear. A worm gear 2 is rotatably installed in the inner cavity of the welding splint, and the worm gear 2 is meshed with two adjacent worm gears. A sprocket is fixedly connected to the two ends of the worm gear, and the two sprockets are driven by a chain. A driving motor is installed on one side of the welding splint, and the driving motor is fixedly connected to the two ends of one of the worm gears.

[0012] Preferably, a flue gas purification box is fixedly connected to the top of the top plate, and the inner cavity of the flue gas purification box is filled with activated carbon particles.

[0013] Preferably, the welding assembly comprises a movable plate and a driving screw, the driving screw and a guide rod are fixedly installed in the inner cavity of the top plate, the driving screw is threadedly installed on the movable plate, and the guide rod passes through the movable plate, and a lead screw 1 is rotatably installed in the inner cavity of the movable plate, and a sliding block is threadedly installed on the surface of the lead screw 1, and the bottom of the sliding block is connected to an electric telescopic rod, and the bottom of the electric telescopic rod is connected to a base plate, and a driving rod is rotatably installed at the bottom end of the base plate, an asynchronous motor 2 is installed on one side of the base plate, and the asynchronous motor 2 is connected to the driving rod, a support rod and an electric push rod 2 are fixedly connected on the driving rod, and a welding gun mounting plate is rotatably installed at the bottom end of the electric push rod 2, a mounting block is slidably installed on the upper surface of the welding gun mounting plate, and the mounting block is rotatably connected to the support rod, a welding gun is installed in the middle of the welding gun mounting plate by bolts, and the welding gun is connected to a welding machine by a line, and a micro suction pump is installed at the bottom of the welding gun mounting plate and at the back of the welding gun, and the exhaust port of the micro suction pump is connected to the fume purification box through a hose.

[0014] Preferably, the inner cavity of the movable plate and the inner cavity of the top plate are both equipped with servo motors, and the output shafts of the servo motors are fixedly connected to the lead screw 1 and the end of the driving screw respectively.

[0015] Preferably, the middle parts of the welding point positioning plate 1 and the welding point positioning plate 2 are fixedly connected with LED spotlights, and above the LED spotlights and inside the welding point positioning plate 2 and the welding point positioning plate 1 are fixedly connected with tempered glass plates.

[0016] Preferably, the hydraulic telescopic cylinder is fixedly installed inside the rotating disk.

[0017] The present invention provides a steel structure welding positioning device for construction engineering, which has the following beneficial effects: 1. The steel structure welding positioning device for construction engineering clamps the upper and lower surfaces of the steel structure pipe fittings through welding clamps, uses auxiliary clamps to contact the side of the steel structure pipe fittings, and pushes the steel structure pipe fittings to the center position of the upper surface of the welding clamps, which can not only realize the position correction and positioning of the steel structure pipe fittings, but also fix the side of the steel structure pipe fittings. Combined with the use of welding clamps, the four sides of the steel structure pipe fittings can be supported and limited. Start the asynchronous motor to drive the transmission screw to rotate. At this time, the transmission screw will drive the moving block to move along the transmission screw. At this time, the moving block will move with the inner clamping block, so that the inner clamping block moves to contact the inner wall of the steel pipe and generate extrusion, thereby realizing the fixation of the inner wall of the pipe fitting and improving the stability of the steel structure welding process.

[0018] 2. The steel structure welding positioning device for construction engineering uses an auxiliary positioning mechanism. After two steel structure pipes are welded and butt-jointed, the hydraulic telescopic cylinder is started to push the welding point positioning plate 1 upward so that the welding point positioning plate 1 is at the center of the rotating disk. The welding point positioning plate 1 and the welding point positioning plate 2 are used to contact the welding point of the steel structure to support the position of the welding point. Then, the worm gear 1 is rotated by the rotating rod, so that the worm gear 1 drives the worm gear 1 to rotate. The worm gear 1 is threadedly connected with the threaded push rod, and then the U-shaped mounting plate is pushed to move outward along the threaded push rod, so that the connection point between the welding point positioning plate 2 and the U-shaped mounting plate extends to the outside of the steel structure pipe. At this time, the welding point positioning plate 2 can be flipped to make the welding point positioning plate 2 vertical, and then the rotating rod is rotated in the opposite direction to make the welding point The second positioning plate contacts the welding point of the steel structure to form support from the side. According to the welding requirements, it can be supported on one side of the bottom, on both sides, at the same time on the bottom and the side, or on the bottom and one side. The electric push rod is used to push the bearing block upward. At this time, the bearing block can contact the steel structure pipe fitting. At this time, the contact sensor is touched, and the LED spotlight is used to emit illumination light to illuminate the welding gap between the two steel structure pipe fittings. The staff judges whether the positioning is complete through the light projection at the welding point. Once the welding point position is misaligned during the welding process, the contact sensor will be separated from the initial contact surface. During the separation process, the contact sensor will not be touched. At this time, a signal will be sent to the controller and an alarm will be given, thereby further ensuring the accuracy of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional view of the structure of the present invention; Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 3 For the present invention Figure 1 The enlarged structural diagram at B in the middle; Figure 4 For the present invention Figure 1 The enlarged structural diagram at C in the middle; Figure 5 It is a schematic diagram of the cross-sectional structure of the welding clamp plate of the present invention when viewed from above; Figure 6 This is a schematic structural diagram of a cross-sectional view of a welding point positioning plate of the present invention; Figure 7 It is a structural schematic diagram of the auxiliary splint of the present invention; Figure 8 It is a structural schematic diagram of the inner clamping block of the present invention; Fig. 9 It is a structural schematic diagram of the front side of the present invention.

[0020] In the figure: 1, welding table; 2, side plate; 3, driving motor 1; 4, push rod; 5, positioning cylinder 1; 6, sliding groove; 7, two-way screw rod 1; 8, arc clamping plate; 9, driving motor 2; 10, gear ring; 11, driving gear; 12, fixed frame; 13, rotating frame; 14, two-way screw rod 2; 15, rotating motor; 16, driving block; 17, extension plate; 18, welding clamping plate; 19, flue gas purification box; 20, activated carbon particles; 21, guide rod; 22, sliding block; 23, driving screw; 24, screw rod 1; 25, moving plate; 26, welding machine; 27, top plate; 28, auxiliary clamping plate; 29, driving motor 1; 30, driving motor 2; 31, positioning cylinder 2; 32, sprocket; 33, electric push rod 1; 34, LED spotlight; 35, threaded push rod; 36, bearing block; 37, U-shaped mounting plate; 3 8. Welding point positioning plate 1; 39. Welding point positioning plate 2; 40. Tempered glass plate; 41. Contact sensor; 42. Positioning rod; 43. Hydraulic telescopic cylinder; 44. Worm 1; 45. Worm wheel 1; 46. Guide block; 47. Worm wheel 2; 48. Transmission worm; 49. Rectangular guide column 1; 50. Moving cavity; 51. Inner clamping block; 52. Guide groove; 53. Rectangular guide column 2; 54. Moving block; 55. Transmission screw; 56. Worm wheel 2; 57. Asynchronous motor 1; 59. Transmission worm wheel; 60. Rotating column; 61. Asynchronous motor 2; 62. Support rod; 63. Mounting block; 64. Welding gun mounting plate; 65. Welding gun; 66. Micro suction pump; 67. Electric push rod 2; 68. Driving rod; 69. Electric telescopic rod; 70. Base plate; 71. Rotating disk; 72. Fixed cylinder; 73. Internal thread block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figures 1 to 9 The present invention provides a technical solution: a steel structure welding positioning device for construction engineering, comprising a welding platform 1, a rotating mechanism is installed on the top of the welding platform 1, a welding fixing assembly is installed on the rotating mechanism, side plates 2 are fixedly connected to both sides of the upper surface of the welding platform 1, a top plate 27 is installed on the top of the side plate 2, a welding machine 26 is installed on the top plate 27, a welding assembly is installed on the top plate 27, and the rotating mechanism is also provided with an auxiliary positioning mechanism, The auxiliary positioning mechanism includes a hydraulic telescopic cylinder 43, a welding point positioning plate 1 38, and a welding point positioning plate 2 39. The hydraulic telescopic cylinder 43 is fixedly installed inside the rotating disk 71. A welding point positioning plate 1 38 is installed on the top of the hydraulic telescopic cylinder 43. Both ends of the welding point positioning plate 1 38 are provided with U-shaped mounting plates 37. The inner cavity of the U-shaped mounting plate 37 is installed with a welding point positioning plate 2 39 through a screw. A threaded push rod 35 is fixedly installed on one side of the U-shaped mounting plate 37. The threaded push rod 35 is slidably installed in the inner cavity of the welding point positioning plate 1 38. The screw A worm wheel 45 is threadedly installed on the surface of the threaded push rod 35, and the worm wheel 45 is rotatably connected to the welding point positioning plate 38. A worm 44 is rotatably installed in the inner cavity of the welding point positioning plate 38, and the worm 44 is meshed with the worm wheel 45. One end of the worm 44 extends to the outside of the welding point positioning plate 38 and is connected to a rotating rod. The inside of the welding point positioning plate 38 and the welding point positioning plate 2 39 are both installed with an electric push rod 33. The top of the electric push rod 33 is connected to a bearing block 36, and the middle of the bearing block 36 is connected to a contact sensor 41. A positioning rod 42 is fixedly connected to one side of the U-shaped mounting plate 37, and the positioning rod 42 is slidably mounted to the inner cavity of the welding point positioning plate 1 38.

[0023] After the two steel structure pipes are welded and butted together by using the auxiliary positioning mechanism, the end faces of the two steel structure pipes, that is, the welding faces, are in contact. At this time, the hydraulic telescopic cylinder 43 is started to push the welding point positioning plate 1 38 upward. The welding point positioning plate 1 38 is in the center position of the rotating disk 71. The welding point positioning plate 1 38 and the welding point positioning plate 2 39 are used to contact the welding point of the steel structure to support the position of the welding point. Then, the worm 1 44 is rotated by the rotating rod, and the worm 1 44 drives the worm wheel 1 45 to rotate, and the worm wheel 1 45 and the threaded push rod are rotated. 35 is threadedly connected, thereby pushing the U-shaped mounting plate 37 to move outward along the threaded push rod 35, so that the connection point between the welding point positioning plate 2 39 and the U-shaped mounting plate 37 extends to the outside of the steel structure pipe fitting. At this time, the welding point positioning plate 2 39 can be turned over to make the welding point positioning plate 2 39 vertical, and then the rotating rod is rotated in the opposite direction to make the welding point positioning plate 2 39 contact the steel structure welding point to form support from the side. According to the welding requirements, the bottom one side support, the two sides support, the bottom and the side support at the same time, the bottom and one side support can be realized. If the peripheral surface of the welding point of the steel structure pipe is not flat, the electric push rod 33 is used to push the supporting block 36 to move upward. At this time, the supporting block 36 can contact the steel structure pipe. At this time, the contact sensor 41 is touched, and the LED spotlight 34 is used to emit illumination light to illuminate the welding gap between the two steel structure pipes. The staff can judge whether the positioning is complete through the light projection of the welding point. Once the welding point position is misaligned during the welding process, the contact sensor 41 will be separated from the initial contact surface. During the separation process, the contact sensor 41 will not be touched. At this time, a signal will be sent to the controller and an alarm will be given, thereby further ensuring the accuracy of the welding process.

[0024] The rotating mechanism includes a rotating disk 71 and a driving motor 29. The rotating disk 71 is rotatably installed in the inner cavity of the welding table 1. The driving motor 29 is installed inside the welding table 1. The output end of the driving motor 29 is connected to a driving gear 11. A gear ring 10 is fixedly connected to the outer side of the rotating disk 71, and the gear ring 10 is meshed with the driving gear 11. Sliding grooves 6 are opened on both sides of the upper surface of the rotating disk 71. A bidirectional screw rod 7 is rotatably installed in the inner cavity of the sliding groove 6. The welding fixing assembly includes a fixing frame 12, and the fixing frames 12 are threadedly installed on the two end surfaces of the bidirectional screw rod 7 and located in the inner cavity of the sliding groove 6. The top of the fixing frame 12 extends to the outside of the sliding groove 6. The inner cavity of the rotating disk 71 is installed with a driving motor 3, and the output shaft of the driving motor 3 is fixedly connected to the bidirectional screw rod 7. There are two fixed frames 12 and they are mirror-imaged with the center of the welding table 1. The outside of the fixed frame 12 is fixedly connected with a rotating motor 15. The inner cavity of the fixed frame 12 is rotatably installed with a rotating frame 13, and the output shaft of the rotating motor 15 is fixedly connected to the side of the rotating frame 13. The inner cavity of the rotating frame 13 is rotatably installed with a two-way screw rod 14. Both ends of the two-way screw rod 14 are threadedly installed with a driving block 16. Two adjacent driving blocks 16 are mirror-imaged. A driving motor 30 is fixedly installed on the top of the inner cavity of the rotating frame 13, and the output shaft of the driving motor 30 is fixedly connected to one end of the two-way screw rod 14. One end of the driving block 16 A rotating column 60 is rotatably installed inside the side, one end of the rotating column 60 is fixedly connected to a welding clamp plate 18, a transmission worm wheel 59 is fixedly sleeved on the outer side of the rotating column 60, a transmission worm 48 is rotatably installed inside the driving block 16, and the transmission worm 48 is meshed with the transmission worm wheel 59, a pushing spring is fixedly connected to the inner cavity of the transmission worm 48, one end of the pushing spring is fixedly connected to a rectangular guide column 1 49, and the rectangular guide column 1 49 is slidably installed to the inner cavity of the transmission worm 48, a positioning cylinder 2 31 is fixedly connected to the top of the rectangular guide column 1 49 located below, and the inner cavity of the positioning cylinder 2 31 is adapted to the rectangular guide column 1 49, The steel structure pipe fitting is placed between two sets of welding clamps 18, and the driving motor 2 30 is started to drive the bidirectional screw 2 14 to rotate, thereby driving the corresponding two driving blocks 16 to drive the welding clamps 18 to approach each other, and then the welding clamps 18 are used to clamp the upper and lower sides of the steel structure pipe fitting, and the rotating motor 15 is started to drive the rotating frame 13 to rotate, thereby rotating the steel structure pipe fitting, thereby facilitating the adjustment of the direction. If it is necessary to clamp the round pipe, after the rectangular guide column 1 49 is sleeved into the inner cavity of the positioning tube 2 31, the driving motor 1 29 can be started to drive the transmission worm 48 to rotate, and the transmission worm 48 drives the transmission worm wheel 59 to rotate, thereby driving the rotating column 60 to turn the welding clamp 18 180 degrees, and then the arc clamp 8 with different inner diameter specifications can be installed with bolts for special clamping of round pipes. The driving motor 2 9 drives the driving gear 11 to rotate, and then drives the gear ring 10 to rotate, driving the rotating disk 71 to rotate, so as to facilitate the adjustment of the welding angle. A moving cavity 50 is provided on one side of the driving block 16, and guide grooves 52 are provided in the inner cavity of the driving block 16 and on both sides of the inner wall of the moving cavity 50. An inner clamping block 51 is slidably installed in the inner cavity of the moving cavity 50, and both ends of the inner clamping block 51 are connected to guide blocks 46. A moving block 54 is slidably installed in the inner cavity of the inner clamping block 51, and a transmission screw 55 is rotatably installed inside the driving block 16, and a rectangular guide column 2 53 is slidably installed in the inner cavity of the transmission screw 55. A push spring is fixedly connected to one end of the inner cavity of the transmission screw 55, and the push spring is fixedly connected to the rectangular guide column 2 53, and a positioning cylinder 1 5 is fixedly connected to the top of the rectangular guide column 2 53 located below, and the positioning cylinder 1 5 is adapted to the rectangular guide column 2 53, and one end of the transmission screw 55 passes through the moving block 54 and is threadedly connected to the moving block 54.

[0025] An asynchronous motor 57 is installed inside the driving block 16 located above, and the output shaft of the asynchronous motor 57 is fixedly connected to the corresponding transmission screw 55. A driving motor 29 is fixedly connected to the top of the driving block 16 located above, and the driving motor 29 is fixedly connected to the corresponding transmission worm 48.

[0026] When the hollow steel structure pipe is welded and positioned, the outside of the steel structure pipe is clamped by the welding clamp 18. At this time, after clamping, the upper rectangular guide column 53 is sleeved into the inner cavity of the positioning cylinder 5, and the asynchronous motor 57 is started to drive the transmission screw 55 to rotate. At this time, the transmission screw 55 will drive the moving block 54 to move along the transmission screw 55. At this time, the moving block 54 will move with the inner clamping block 51. Due to the guide limit of the guide groove 52 and the guide block 46, the inner clamping block 51 will move along the guide groove 52. The moving block 54 will slide in the inner cavity of the inner clamping block 51 during the movement along the transmission screw 55, thereby making the inner clamping block 51 move to contact the inner wall of the steel pipe and produce extrusion, thereby realizing the fixation of the inner wall of the pipe fitting, and the inner clamping block 51 does not affect the welding of the pipe fitting. Even if the steel structure material is a solid structure, the inner clamping block 51 will not move and will not cause any impact, thereby improving the stability of the steel structure welding process.

[0027] A groove is provided on the surface of the welding clamping plate 18, and an arc clamping plate 8 is installed inside the groove by bolts. An extension plate 17 is slidably installed inside the welding clamping plate 18, and a rack is fixedly connected to one side of the extension plate 17. A push rod 4 is rotatably installed in the inner cavity of the extension plate 17. A threaded section is provided at one end of the push rod 4, and an auxiliary clamping plate 28 is fixedly connected to one end of the push rod 4. A fixed cylinder 72 is fixedly connected inside the welding clamping plate 18, and the fixed cylinder 72 is slidably sleeved to the surface of the push rod 4. An internal thread block 73 is fixedly connected to the inner end of the fixed cylinder 72, and the internal thread block 73 is threadedly connected to the threaded section on the push rod 4. A gear is rotatably installed in the inner cavity of the welding splint 18, and the gear is meshed with the rack on one side of the extension plate 17. A worm wheel 2 47 is fixedly installed on the surface of the gear. A worm 2 56 is rotatably installed in the inner cavity of the welding splint 18, and the worm 2 56 is meshed with two adjacent worm wheels 2 47. A sprocket 32 ​​is fixedly connected to the end of the worm 2 56. The two sprockets 32 are driven by a chain. A drive motor is installed on one side of the welding splint 18, and the drive motor is fixedly connected to the end of one of the worm 2 56.

[0028] The upper and lower surfaces of the steel structure pipe are clamped by the welding clamp 18. At this time, the driving motor installed on one side of the welding clamp 18 is started, and the driving motor is used to drive the worm 2 56 to rotate. The two groups of worm 2 56 are rotated through the transmission of the sprocket 32 ​​and the chain. The rotation of the worm 2 56 drives the worm wheel 2 47 to rotate, and the worm wheel 2 47 drives the gear to rotate. The gear drives the extension plate 17 to move, and then the extension plate 17 moves toward the inner cavity of the welding clamp 18. When the threaded section on the push rod 4 contacts the internal thread block 73, since the internal thread block 73 will not move, it will drive the push rod 4 to flip 180 degrees. At this time, the threaded section on the push rod 4 and the internal thread block 73 is separated, and the smooth surface of the push rod 4 passes through the inner cavity of the internal thread block 73 and continues to move toward the inner cavity of the fixed cylinder 72 until the auxiliary splint 28 contacts the side of the steel structure pipe fitting and pushes the steel structure pipe fitting to the center position of the upper surface of the welding splint 18. It can not only realize the position correction and positioning of the steel structure pipe fitting, but also fix the side of the steel structure pipe fitting. Combined with the use of the welding splint 18, the four sides of the steel structure pipe fitting can be supported and limited. When in use, since the auxiliary splint 28 is flipped downward in the initial state, it will not affect the placement of the steel structure pipe fitting. At the same time, it is driven by a worm gear, which has a self-locking function and the clamping is more stable.

[0029] The top of the top plate 27 is fixedly connected with a flue gas purification box 19, and the inner cavity of the flue gas purification box 19 is filled with activated carbon particles 20. The welding assembly includes a movable plate 25 and a driving screw 23. The inner cavity of the top plate 27 is fixedly installed with a driving screw 23 and a guide rod 21. The driving screw 23 is threadedly installed with the movable plate 25. The guide rod 21 penetrates the movable plate 25. The inner cavity of the movable plate 25 is rotatably installed with a lead screw 24. The surface of the lead screw 24 is threadedly installed with a sliding block 22. The bottom of the sliding block 22 is connected to an electric telescopic rod 69. The bottom of the electric telescopic rod 69 is connected to a base plate 70. The bottom end of the base plate 70 is rotatably installed with a driving rod 68. The base plate 70 An asynchronous motor 61 is installed on one side, and the asynchronous motor 61 is connected to a driving rod 68, a support rod 62 and an electric push rod 67 are fixedly connected to the driving rod 68, a welding gun mounting plate 64 is rotatably installed on the bottom end of the electric push rod 67, a mounting block 63 is slidably installed on the upper surface of the welding gun mounting plate 64, and the mounting block 63 is rotatably connected to the support rod 62, a welding gun 65 is installed in the middle of the welding gun mounting plate 64 by bolts, the welding gun 65 is connected to the welding machine 26 by lines, a micro suction pump 66 is installed at the bottom of the welding gun mounting plate 64 and on the back of the welding gun 65, and the exhaust port of the micro suction pump 66 is connected to the fume purification box 19 through a hose. When welding, firstly, the welding gun 65 is installed on the welding gun mounting plate 64 with bolts, then the angle of the welding gun 65 is adjusted, and the electric push rod 67 is started to push one side of the welding gun mounting plate 64 down or up. At this time, the welding gun mounting plate 64 tilts to the left or right with the welding gun 65. Start the asynchronous motor 61 to drive the driving rod 68 to rotate, thereby driving the support rod 62 and the electric push rod 67 to rotate forward or backward, so that the welding gun mounting plate 64 and the welding gun 65 can be tilted forward and backward, so that the welding angle can be adjusted to improve the adaptability. With the rotation of the rotating disk 71, inclined angle welding and horizontal angle welding can be achieved. During welding, the micro suction pump 66 and the welding machine 26 are started, and the welding gun 65 is pushed by the electric telescopic rod 69 to contact the steel structure pipe for welding. The welding gun 65 can move left and right, forward and backward. The micro suction pump 66 sucks the smoke generated during welding and transports it to the inner cavity of the smoke purification box 19. The smoke contacts the activated carbon particles 20, is purified by the activated carbon particles 20, and is then discharged.

[0030] Servo motors are installed in the inner cavities of the moving plate 25 and the top plate 27, and the output shafts of the servo motors are fixedly connected to the ends of the lead screw 24 and the driving screw 23 respectively.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel structure welding positioning device for construction engineering, comprising a welding table (1), characterized in that: A rotating mechanism is installed on the top of the welding platform (1), and a welding fixing assembly is installed on the rotating mechanism. Side plates (2) are fixedly connected to both sides of the upper surface of the welding platform (1). A top plate (27) is installed on the top of the side plate (2). A welding machine (26) is installed on the top plate (27). A welding assembly is installed on the top plate (27). The rotating mechanism is also provided with an auxiliary positioning mechanism. The auxiliary positioning mechanism comprises a hydraulic telescopic cylinder (43), a welding point positioning plate 1 (38), and a welding point positioning plate 2 (39). The top of the hydraulic telescopic cylinder (43) is provided with a welding point positioning plate 1 (38). Both ends of the welding point positioning plate 1 (38) are provided with U-shaped mounting plates (37). The inner cavity of the U-shaped mounting plate (37) is provided with the welding point positioning plate 2 (39) via a screw. A threaded push rod (35) is fixedly installed on one side of the U-shaped mounting plate (37). The threaded push rod (35) is slidably installed in the inner cavity of the welding point positioning plate 1 (38). The surface of the threaded push rod (35) is threadedly mounted. A worm wheel (45) is provided, the worm wheel (45) is rotatably connected to a welding point positioning plate (38), a worm (44) is rotatably installed in the inner cavity of the welding point positioning plate (38), and the worm (44) is meshed with the worm wheel (45), one end of the worm (44) extends to the outside of the welding point positioning plate (38) and is connected to a rotating rod, an electric push rod (33) is installed inside the welding point positioning plate (38) and the welding point positioning plate (39), the top of the electric push rod (33) is connected to a bearing block (36), and the middle of the bearing block (36) is connected to a contact sensor (41), A positioning rod (42) is fixedly connected to one side of the U-shaped mounting plate (37), and the positioning rod (42) is slidably mounted to the inner cavity of the first welding point positioning plate (38); The middle parts of the welding point positioning plate 1 (38) and the welding point positioning plate 2 (39) are both fixedly connected with an LED spotlight (34), and a tempered glass plate (40) is fixedly connected above the LED spotlight (34) and inside the welding point positioning plate 2 (39) and the welding point positioning plate 1 (38).

2. A steel structure welding positioning device for construction engineering according to claim 1, characterized in that: The rotating mechanism comprises a rotating disk (71) and a second driving motor (9); the rotating disk (71) is rotatably mounted in the inner cavity of the welding table (1); the second driving motor (9) is mounted inside the welding table (1); the output end of the second driving motor (9) is connected to a driving gear (11); a gear ring (10) is fixedly connected to the outer side of the rotating disk (71), and the gear ring (10) is meshed with the driving gear (11); sliding grooves (6) are provided on both sides of the upper surface of the rotating disk (71); a bidirectional screw rod (7) is rotatably mounted in the inner cavity of the sliding groove (6).

3. A steel structure welding positioning device for construction engineering according to claim 2, characterized in that: The welding fixing assembly comprises a fixing frame (12), the fixing frames (12) are threadedly mounted on the two end surfaces of the bidirectional screw rod (7) and located in the inner cavity of the sliding groove (6), the top of the fixing frame (12) extends to the outside of the sliding groove (6), the inner cavity of the rotating disk (71) is installed with a driving motor (3), and the output shaft of the driving motor (3) is fixedly connected to the bidirectional screw rod (7); The number of the fixed frames (12) is two and they are arranged in a mirror image with the center of the welding table (1). The outside of the fixed frame (12) is fixedly connected to a rotating motor (15). The inner cavity of the fixed frame (12) is rotatably mounted with a rotating frame (13), and the output shaft of the rotating motor (15) is fixedly connected to the side of the rotating frame (13). The inner cavity of the rotating frame (13) is rotatably mounted with a bidirectional screw rod (14). Both ends of the bidirectional screw rod (14) are threadedly mounted with drive blocks (16). Two adjacent drive blocks (16) are mirror-symmetrical. A drive motor (30) is fixedly mounted on the top of the inner cavity of the rotating frame (13), and the output shaft of the drive motor (30) is fixedly connected to one end of the bidirectional screw rod (14). The drive block (16) ) is internally rotatably installed on one side of the driving block (16), one end of the rotating column (60) is fixedly connected to a welding clamp (18), the outer side of the rotating column (60) is fixedly sleeved with a transmission worm wheel (59), the internal of the driving block (16) is rotatably installed with a transmission worm (48), and the transmission worm (48) is meshed with the transmission worm wheel (59), the inner cavity of the transmission worm (48) is fixedly connected to a push spring, one end of the push spring is fixedly connected to a rectangular guide column (49), and the rectangular guide column (49) is slidably installed in the inner cavity of the transmission worm (48), and the top of the rectangular guide column (49) located below is fixedly connected to a positioning cylinder (31), and the inner cavity of the positioning cylinder (31) is adapted to the rectangular guide column (49).

4. A steel structure welding positioning device for construction engineering according to claim 3, characterized in that: A moving cavity (50) is provided on one side of the driving block (16), and guide grooves (52) are provided in the inner cavity of the driving block (16) and on both sides of the inner wall of the moving cavity (50). An inner clamping block (51) is slidably installed in the inner cavity of the moving cavity (50), and both ends of the inner clamping block (51) are connected to guide blocks (46). A moving block (54) is slidably installed in the inner cavity of the inner clamping block (51), and a transmission screw (55) is rotatably installed inside the driving block (16). A rectangular guide column 2 (53) is slidably mounted in the inner cavity of the transmission screw (55), a push spring is fixedly connected to one end of the inner cavity of the transmission screw (55), and the push spring is fixedly connected to the rectangular guide column 2 (53), a positioning cylinder 1 (5) is fixedly connected to the top of the rectangular guide column 2 (53) located below, and the positioning cylinder 1 (5) is adapted to the rectangular guide column 2 (53), and one end of the transmission screw (55) passes through the moving block (54) and is threadedly connected to the moving block (54); An asynchronous motor 1 (57) is installed inside the driving block (16) located above, and the output shaft of the asynchronous motor 1 (57) is fixedly connected to the corresponding transmission screw (55). A driving motor 1 (29) is fixedly connected to the top of the driving block (16) located above, and the driving motor 1 (29) is fixedly connected to the corresponding transmission worm (48).

5. A steel structure welding positioning device for construction engineering according to claim 4, characterized in that: The surface of the welding clamp (18) is provided with a groove, and an arc clamp (8) is installed inside the groove by bolts. An extension plate (17) is slidably installed inside the welding clamp (18), and a rack is fixedly connected to one side of the extension plate (17). A push rod (4) is rotatably installed in the inner cavity of the extension plate (17). One end of the push rod (4) is provided with a threaded section, and one end of the push rod (4) is fixedly connected to an auxiliary clamp (28). The interior of the welding clamp (18) is fixedly connected with a fixing cylinder (72), and the fixing cylinder (72) is slidably sleeved on the surface of the push rod (4). The inner cavity end of the fixing cylinder (72) is fixedly connected with an internal thread block (73), and the internal thread block (73) is threadedly connected to the threaded section on the push rod (4). A gear is rotatably mounted in the inner cavity of the welding clamp (18), and the gear meshes with a rack on one side of the extension plate (17); a worm gear (47) is fixedly mounted on the surface of the gear; a worm gear (56) is rotatably mounted in the inner cavity of the welding clamp (18), and the worm gear (56) meshes with two adjacent worm gears (47); a sprocket (32) is fixedly connected to the end of the worm gear (56); a chain is driven between the two sprockets (32); a driving motor is mounted on one side of the welding clamp (18), and the driving motor is fixedly connected to the end of one of the worm gears (56).

6. The steel structure welding positioning device for construction engineering according to claim 1, characterized in that: A flue gas purification box (19) is fixedly connected to the top of the top plate (27), and the inner cavity of the flue gas purification box (19) is filled with activated carbon particles (20).

7. A steel structure welding positioning device for construction engineering according to claim 6, characterized in that: The welding assembly comprises a movable plate (25) and a driving screw (23); the driving screw (23) and a guide rod (21) are fixedly installed in the inner cavity of the top plate (27); the movable plate (25) is threadedly installed on the driving screw (23); the guide rod (21) penetrates the movable plate (25); a lead screw (24) is rotatably installed in the inner cavity of the movable plate (25); a sliding block (22) is threadedly installed on the surface of the lead screw (24); an electric telescopic rod (69) is connected to the bottom of the sliding block (22); a base plate (70) is connected to the bottom of the electric telescopic rod (69); a driving rod (68) is rotatably installed at the bottom end of the base plate (70); an asynchronous motor (61) is installed on one side of the base plate (70); and The second stepping motor (61) is connected to the driving rod (68), and the supporting rod (62) and the second electric push rod (67) are fixedly connected to the driving rod (68). The bottom end of the second electric push rod (67) is rotatably mounted with a welding gun mounting plate (64), and a mounting block (63) is slidably mounted on the upper surface of the welding gun mounting plate (64), and the mounting block (63) is rotatably connected to the supporting rod (62). A welding gun (65) is mounted on the middle part of the welding gun mounting plate (64) by bolts, and the welding gun (65) is connected to the welding machine (26) by a line. A micro suction pump (66) is installed at the bottom of the welding gun mounting plate (64) and located on the back of the welding gun (65), and the exhaust port of the micro suction pump (66) is connected to the fume purification box (19) through a hose.

8. A steel structure welding positioning device for construction engineering according to claim 7, characterized in that: The inner cavity of the movable plate (25) and the inner cavity of the top plate (27) are both equipped with servo motors, and the output shafts of the servo motors are fixedly connected to the ends of the lead screw 1 (24) and the driving screw (23) respectively.

9. The steel structure welding positioning device for construction engineering according to claim 1, characterized in that: The middle parts of the welding point positioning plate 1 (38) and the welding point positioning plate 2 (39) are both fixedly connected with an LED spotlight (34), and a tempered glass plate (40) is fixedly connected above the LED spotlight (34) and inside the welding point positioning plate 2 (39) and the welding point positioning plate 1 (38).

10. The steel structure welding positioning device for construction engineering according to claim 1, characterized in that: The hydraulic telescopic cylinder (43) is fixedly installed inside the rotating disk (71).

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