Overturning positioner for welding heavy box girder

Abstract

The invention discloses a turnover positioner for welding a heavy box girder, and relates to the technical field of turnover positions.The turnover positioner comprises a guide rail and further comprises a clamping device, a turnover frame is slidably mounted at the top of the guide rail, a turnover assembly is arranged on the left side of the turnover frame, a fixed side jacking mechanism is arranged on the inner wall of the turnover frame, and a fixed side jacking mechanism is arranged on the right side of the turnover frame. A fixed side jacking mechanism is arranged on the inner wall of the overturning frame, a fixed side clamping mechanism is arranged on the top of the fixed side jacking mechanism, an overturning side jacking mechanism is arranged on the inner wall of the overturning frame, and an overturning side clamping frame is arranged on the top of the overturning side jacking mechanism. The clamping device comprises a fixing rod, displacement equipment, a clamping jaw, a limiting groove, a detection groove, a detection rod, a detection plate, a supporting rod, a hollow plate, a limiting plate and a supporting hole, the clamping jaw cannot continue to move to prevent the clamping jaw from excessively clamping the heavy box girder, and deformation of the heavy box girder can be prevented through reasonable clamping force; it is ensured that the original shape of the heavy box girder is kept in the welding and machining process, and the follow-up machining precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of a flip positioner, in particular to a flip positioner for welding a heavy box beam. Background Art

[0002] The tilting positioner for welding heavy box girders usually consists of a tilting frame, a fixed side clamping mechanism, a tilting side lifting mechanism and protective equipment.

[0003] The patent with the patent announcement number CN211305393U relates to a welding flip positioner, which belongs to the technical field of flip positioners. The patent solves the technical problems of low welding efficiency of existing welding flip positioners. The patent includes a frame, a flip arm support is provided on the frame, and a flip arm 1 and a flip arm 2 capable of flipping a steel pipe bundle are provided on the flip arm support. A clamping mechanism for clamping the steel pipe bundle and a lifting mechanism capable of driving the clamping mechanism to rise and fall are provided on the rear side of the frame. The frame is also provided with a driving mechanism capable of pushing the flip arm support to move horizontally. The patent improves the welding rate of the welding flip positioner.

[0004] In the above patent, the welding rate of the welding flip positioner is improved by providing a driving mechanism on the frame that can push the flip arm support to move horizontally. However, it is difficult to prevent the clamping jaws from over-clamping the heavy box girder. Over-clamping will exert excessive force on the box girder, causing its structure to deform, thereby affecting the accuracy and quality of the heavy box girder during subsequent welding and processing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a tipping and positioning machine for welding heavy box girders, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a flip positioner for welding heavy box girders, comprising a guide rail and a clamping device, wherein a flip frame is slidably installed on the top of the guide rail, a flip assembly is arranged on the left side of the flip frame, a fixed side jacking mechanism is arranged on the inner wall of the flip frame, a fixed side clamping mechanism is arranged on the top of the fixed side jacking mechanism, a flip side jacking mechanism is arranged on the inner wall of the flip frame, and a flip side clamping frame is arranged on the top of the flip side jacking mechanism, wherein the clamping device comprises a fixed rod, a displacement device, a clamping claw, a limit groove, a detection groove, a detection rod, a detection plate, a support rod, a hollow plate, a limit plate and a support hole, and the support rod cannot continue to Continue to move in the direction close to the heavy box beam so that the clamp cannot move further, and the clamp cannot move further to prevent the clamp from over-clamping the heavy box beam. The fixed rod is fixed through the inner and outer walls of the flip side clamping frame, and the displacement device is slidably installed on the circumferential surface of the fixed rod. The clamp is fixedly installed on the top of the displacement device. The limit groove is opened on the left side of the flip side clamping frame, and the detection groove is opened on the surface of the clamp. The detection rod is fixed through the front and rear walls of the clamp, and the detection plate is fixedly installed on the rear side of the detection rod. The support hole is opened on the left side wall of the clamp, and the support rod is fixedly installed on the inner wall of the support hole. The hollow plate is slidably installed on the circumferential surface of the support rod, and the limit plate is slidably installed on the inner wall of the hollow plate.

[0007] A No. 1 spring is arranged between the detection groove and the detection rod, and the No. 1 spring can drive the detection rod to reset. The top of the clamping jaw is arranged as an inclined surface, and the end of the detection rod close to the hollow plate is arranged as an arc surface.

[0008] According to the above technical solution, a No. 2 spring is arranged between the support rod and the hollow plate, and the No. 2 spring can drive the hollow plate to reset. A No. 3 spring is arranged between the hollow plate and the limit plate, and one end of the No. 3 spring is arranged on the inner wall of the hollow plate, and the other end is arranged on the top of the limit plate. The No. 3 spring can drive the limit plate to reset, and the bottom of the limit plate is arranged as an inclined surface.

[0009] According to the above technical scheme, the inner wall of the flip side clamping frame is provided with a protective device to prevent the heavy box girder from slipping, and the inner wall of the flip side clamping frame is provided with a detection device, and the protective device includes a load-bearing plate, a load-bearing rod, a linkage plate, a load-bearing disk and an L-shaped rod. The detection rod is squeezed by the hollow plate and moves in the direction away from the support rod. The movement of the detection rod in the direction away from the support rod drives the detection plate to move to further clamp the heavy box girder. The load-bearing plate is fixedly installed on the inner wall of the flip side clamping frame, the load-bearing rod is fixedly passed through the upper and lower walls of the load-bearing plate, the linkage plate is fixedly installed on the circumferential surface of the load-bearing rod, the load-bearing disk is fixedly installed on the bottom of the load-bearing rod, and the L-shaped rod is fixedly installed on the circumferential surface of the load-bearing rod.

[0010] According to the above technical solution, a load-bearing spring is arranged between the load-bearing plate and the load-bearing rod, and the load-bearing rod can be driven to reset by the load-bearing spring. A square plate is fixedly installed on the top of the load-bearing rod, and the linkage plate is in contact with the hollow plate.

[0011] According to the above technical solution, according to the above technical solution, the detection device includes a detection frame, a detection plate, a detection rod, a protection frame, a protection plate, a protection rod, a button and a protection hole. The protection rod moves out of contact with the groove and releases the limit on the button. After the limit of the button is released, the button is manually pressed to drive the flipping assembly to perform a flipping operation. The detection frame is fixedly installed on the top of the load-bearing plate, the detection plate is slidably installed on the inner wall of the detection frame, the detection rod is fixedly installed on the top of the detection plate, the protection frame is fixedly installed on the inner wall of the flip side clamping frame, the protection plate is slidably installed on the inner wall of the protection frame, the protection rod is fixedly installed on the front side of the protection plate, the button is fixedly installed on the inner wall of the flip side clamping frame, and the protection hole is opened on the inner wall of the flip side clamping frame.

[0012] According to the above technical solution, a hose is arranged between the detection frame and the protection frame, a No. 4 spring is arranged between the detection frame and the detection plate, one end of the No. 4 spring is arranged on the inner wall of the detection frame, and the other end is arranged on the bottom of the detection plate. The No. 4 spring can be used to drive the detection plate to reset, and the button is electrically connected to the flip assembly.

[0013] According to the above technical solution, liquid is arranged inside the detection frame, liquid is arranged inside the protection frame, a rubber ring is arranged between the protection rod and the protection frame, the rubber ring can enhance the sealing between the protection rod and the protection frame, and a groove is arranged on the circumferential surface of the button.

[0014] The present invention provides a tipping positioner for welding heavy box beams. It has the following beneficial effects: (1) The welded heavy box girder is turned over and positioned by moving the detection plate and the clamping claw to contact the heavy box girder and squeeze and fix the heavy box girder, and the heavy box girder is fixed and turned over. The fixed turning can ensure the stability of the welding workpiece during the welding process, make the welding angle and position more accurate, thereby improving the quality of the welded joint and reducing weld defects. The support rod cannot continue to move in the direction close to the heavy box girder, so that the clamping claw cannot continue to move. The clamping claw cannot continue to move to prevent the clamping claw from excessively clamping the heavy box girder. The reasonable clamping force can prevent the deformation of the heavy box girder, ensure that the heavy box girder maintains its original shape during the welding and processing process, and improve the subsequent processing accuracy.

[0015] (2) The welded heavy box girder is turned over and positioned. The linkage plate moves downward to drive the load-bearing rod to move downward. The load-bearing rod moves downward to drive the L-shaped rod to move downward to assist in fixing the top of the heavy box girder. The auxiliary fixation can effectively prevent the heavy box girder from tilting or shaking due to its own weight or external force during the welding process, ensuring that the heavy box girder remains stable. The detection rod is squeezed by the hollow plate and moves away from the support rod. The detection rod moves away from the support rod and drives the detection plate to move to further clamp the heavy box girder. Increasing the clamping force can reduce the safety hazard caused by the sliding of the heavy box girder, prevent accidents, and thus protect the safety of operators.

[0016] (3) The welded heavy box girder is turned over and positioned. The protective plate is squeezed by the liquid entering the protective frame and moves away from the load-bearing plate. The protective plate moves away from the load-bearing plate and drives the protective rod to move. The protective rod moves out of contact with the groove and releases the limit on the button. After the limit on the button is released, the button is manually pressed to drive the flip assembly to perform the flip operation. By detecting that the heavy box girder is clamped stably, the button can be pressed to perform the flip operation, which can effectively reduce the risk of accidental slipping or loosening of the workpiece due to unstable clamping, and further ensure the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the turning frame and the turning assembly of the present invention; Figure 3 This is a schematic diagram of the internal structure of the flip assembly of the present invention; Figure 4 It is a schematic diagram of the position structure of the flip side clamping frame and the limiting groove of the present invention; Figure 5 It is a schematic diagram of the displacement device and the clamping jaw position structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement of part A; Figure 7 For the present invention Figure 5 A schematic diagram of the structure of part B in the middle is enlarged; Figure 8 This is a schematic diagram of the position structure of the detection plate and the detection rod of the present invention; Fig. 9 It is a schematic diagram of the internal structure of the detection frame of the present invention.

[0018] In the figure: 1. guide rail; 2. flip frame; 3. flip assembly; 4. fixed side lifting mechanism; 5. fixed side clamping mechanism; 6. flip side lifting mechanism; 7. flip side clamping frame; 8. fixed rod; 9. displacement device; 10. clamping claw; 11. limit groove; 12. detection groove; 13. detection rod; 14. detection plate; 15. support rod; 16. hollow plate; 17. limit plate; 181. load-bearing plate; 182. load-bearing rod; 183. linkage plate; 184. load-bearing spring; 185. load-bearing plate; 186. L-shaped rod; 187. square plate; 191. detection frame; 192. detection plate; 193. detection rod; 194. protection frame; 195. protection plate; 196. protection rod; 197. button; 198. protection hole; 20. support hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 , one embodiment of the present invention is: a flip positioner for welding heavy box beams, comprising a guide rail 1, and also comprising a clamping device, wherein a flip frame 2 is slidably installed on the top of the guide rail 1, a flip assembly 3 is arranged on the left side of the flip frame 2, a fixed side jacking mechanism 4 is arranged on the inner wall of the flip frame 2, a fixed side clamping mechanism 5 is arranged on the top of the fixed side jacking mechanism 4, a flip side jacking mechanism 6 is arranged on the inner wall of the flip frame 2, and a flip side clamping frame 7 is arranged on the top of the flip side jacking mechanism 6, wherein the clamping device comprises a fixed rod 8, a displacement device 9, a clamping claw 10, a limit groove 11, a detection groove 12, a detection rod 13, a detection plate 14, a support rod 15, a hollow plate 16, a limit plate 17 and a support hole 20, and the fixed rod 8 is fixed through the flipping The inner and outer walls of the turning side clamping frame 7, the displacement device 9 is slidably installed on the circumferential surface of the fixed rod 8, the clamping jaw 10 is fixedly installed on the top of the displacement device 9, the limit groove 11 is opened on the left side of the flipping side clamping frame 7, the detection groove 12 is opened on the surface of the clamping jaw 10, the detection rod 13 is fixedly passed through the front and rear walls of the clamping jaw 10, the detection plate 14 is fixedly installed on the rear side of the detection rod 13, the support hole 20 is opened on the left side wall of the clamping jaw 10, the support rod 15 is fixedly installed on the inner wall of the support hole 20, the hollow plate 16 is slidably installed on the circumferential surface of the support rod 15, and the limit plate 17 is slidably installed on the inner wall of the hollow plate 16. Through reasonable clamping force, the deformation of the heavy box girder can be prevented, ensuring that the heavy box girder maintains its original shape during welding and processing, and improving the subsequent processing accuracy.

[0021] A turning frame 2 is composed of a fixed side and a turning side. The fixed side is provided with a lifting and clamping mechanism, and the turning side is provided with a lifting, clamping and turning mechanism. When the positioner is waiting for a workpiece, the fixed side lifting mechanism 4 rises to the uppermost end of the positioner, and the clamping jaw 10 moves to the maximum opening state. The turning side lifting mechanism moves to the lowest point, and the clamping jaw 10 also moves to the maximum opening state. After a workpiece is installed in the positioner, the default initial state of the H-beam is that the web is horizontal. The fixed side clamping mechanism 5 is first centered and clamped, and then lowered. After it is lowered into place, the clamping jaws 10 are released and moved to the maximum open state. The welding workstation set up next to the positioner performs welding on the A side of the H-beam. After the welding of the A side is completed, a manual flip command can be issued on the human-machine operation interface to automatically and continuously perform the following flipping actions: A: The flip side lifting mechanism 6 rises, so that the upper edge of the flip side lifting mechanism is flush with the upper edge of the fixed side lifting mechanism 4, and then the flip side clamping frame 7 moves to clamp the flanges on both sides of the H-beam; B: The fixed side lifting mechanism 4 moves to the lowest position, and the flip side clamps the wing plate and completes a 90° flip under the drive of the flip mechanism. At this time, the H-beam posture is that the web is vertical; C: The fixed side lifting mechanism 4 is lifted upward to catch the lower wing surface of the H-beam, and then the fixed side clamping mechanism 5 clamps the H-beam; D: After the flip side lifting mechanism 6 moves to the lowest point and the clamping mechanism is loosened to the maximum open state, the flip mechanism flips 180° in the reverse direction without load. After flipping into place, the lifting mechanism rises. After jacking into place, the flip side clamping frame 7 clamps the H-shaped steel wing plate again; E: The clamping mechanism 5 on the fixed side is released, the lifting mechanism drops to the lowest point, the flange is clamped on the flip side and the flange is flipped 90 degrees again under the drive of the flip mechanism. At this time, the H-beam is in a horizontal web position. F: The fixed side lifting mechanism 4 rises to be flush with the upper edge of the flip side, and the flip side clamp 10 is released and moves downward to the lowest point. At this time, the B side of the H-beam faces upward, and the robot welding workstation can complete the B side welding at this time; The distance of each movement needs to be calculated based on the cross-sectional dimensions of the H-beam. The above flipping action can be completed continuously and automatically, or each individual jog operation can be performed.

[0022] A spring No. 1 is arranged between the detection slot 12 and the detection rod 13, and the detection rod 13 can be reset by the spring No. 1. The top of the clamping jaw 10 is arranged as an inclined surface, and the end of the detection rod 13 close to the hollow plate 16 is arranged as an arc surface.

[0023] A No. 2 spring is arranged between the support rod 15 and the hollow plate 16, and the No. 2 spring can drive the hollow plate 16 to reset. A No. 3 spring is arranged between the hollow plate 16 and the limit plate 17. One end of the No. 3 spring is arranged on the inner wall of the hollow plate 16, and the other end is arranged on the top of the limit plate 17. The No. 3 spring can drive the limit plate 17 to reset. The bottom of the limit plate 17 is arranged as an inclined surface. By fixing and flipping, the stability of the welding workpiece during the welding process can be ensured, and the welding angle and position can be made more accurate.

[0024] When this embodiment is working: after the heavy box girder is placed on the top of the overturning frame 2, the displacement device 9 drives the clamping claw 10 to move in the direction close to the heavy box girder, the clamping claw 10 moves in the direction close to the heavy box girder and drives the detection rod 13 to move, the detection rod 13 moves and drives the detection plate 14 to move, the detection plate 14 moves and contacts with the heavy box girder and squeezes the heavy box girder, and at the same time, the detection plate 14 is subjected to the reaction force of squeezing the heavy box girder and moves in the direction close to the support rod 15, the detection plate 14 moves in the direction close to the support rod 15 and drives the detection rod 13 to move, the detection rod 13 moves and squeezes the No. 1 spring, the No. 1 spring is squeezed by the detection rod 13 to produce deformation and accumulate force, and at the same time, the detection rod 13 moves in the direction close to the support rod 15 and contacts with the heavy box girder. The inclined surface at the top of the hollow plate 16 contacts and squeezes the hollow plate 16, and the hollow plate 16 moves downward due to the squeezing of the detection rod 13. The hollow plate 16 moves downward to squeeze the No. 2 spring. The No. 2 spring is squeezed by the hollow plate 16 to deform and accumulate force. At the same time, the hollow plate 16 moves downward, driving the limit plate 17 to move downward. The limit plate 17 moves downward and contacts the inner wall of the limit groove 11 and limits the hollow plate 16. The hollow plate 16 is limited by the limit plate 17, so that the support rod 15 cannot continue to move in the direction close to the heavy box girder. The support rod 15 cannot continue to move in the direction close to the heavy box girder, so that the clamp 10 cannot continue to move. The clamp 10 cannot continue to move to prevent the clamp 10 from over-clamping the heavy box girder.

[0025] See also Figure 1-Figure 9On the basis of the above-mentioned embodiment, in another embodiment of the present invention, a protective device is provided on the inner wall of the flip side clamping frame 7 to prevent the heavy box beam from sliding off, and a detection device is provided on the inner wall of the flip side clamping frame 7. The protective device comprises a load-bearing plate 181, a load-bearing rod 182, a linkage plate 183, a load-bearing disc 185 and an L-shaped rod 186. The load-bearing plate 181 is fixedly mounted on the inner wall of the flip side clamping frame 7, the load-bearing rod 182 is fixedly passed through the upper and lower walls of the load-bearing plate 181, the linkage plate 183 is fixedly mounted on the circumferential surface of the load-bearing rod 182, the load-bearing disc 185 is fixedly mounted on the bottom of the load-bearing rod 182, and the L-shaped rod 186 is fixedly mounted on the circumferential surface of the load-bearing rod 182. Auxiliary fixation can effectively prevent the heavy box beam from tilting or shaking due to its own weight or external force during welding. When the heavy box beam is loose, increasing the clamping force can reduce the potential safety hazard caused by the sliding off of the heavy box beam, prevent the occurrence of accidents, and thus protect the safety of the operator.

[0026] A load-bearing spring 184 is provided between the load-bearing plate 181 and the load-bearing rod 182 , and the load-bearing spring 184 can drive the load-bearing rod 182 to reset. A square plate 187 is fixedly installed on the top of the load-bearing rod 182 , and the linkage plate 183 is in contact with the hollow plate 16 .

[0027] The detection device includes a detection frame 191, a detection plate 192, a detection rod 193, a protection frame 194, a protection plate 195, a protection rod 196, a button 197 and a protection hole 198. The detection frame 191 is fixedly mounted on the top of the load-bearing plate 181, the detection plate 192 is slidably mounted on the inner wall of the detection frame 191, the detection rod 193 is fixedly mounted on the top of the detection plate 192, the protection frame 194 is fixedly mounted on the inner wall of the flipping side clamping frame 7, the protection plate 195 is slidably mounted on the inner wall of the protection frame 194, the protection rod 196 is fixedly mounted on the front side of the protection plate 195, the button 197 is fixedly mounted on the inner wall of the flipping side clamping frame 7, and the protection hole 198 is opened on the inner wall of the flipping side clamping frame 7. By detecting that the heavy box beam is clamped stably, the button 197 can be pressed to perform the flipping operation, which can effectively reduce the risk of accidental slipping or loosening of the workpiece due to unstable clamping, and further ensure the safety of the operator.

[0028] A hose is arranged between the detection frame 191 and the protection frame 194, and a No. 4 spring is arranged between the detection frame 191 and the detection plate 192. One end of the No. 4 spring is arranged on the inner wall of the detection frame 191, and the other end is arranged on the bottom of the detection plate 192. The No. 4 spring can be used to drive the detection plate 192 to reset, and the button 197 is electrically connected to the flip assembly 3.

[0029] Liquid is arranged inside the detection frame 191 , liquid is arranged inside the protection frame 194 , a rubber ring is arranged between the protection rod 196 and the protection frame 194 , the rubber ring can enhance the sealing between the protection rod 196 and the protection frame 194 , and a groove is arranged on the circumferential surface of the button 197 .

[0030] When the present embodiment is working, the detection rod 13 moves toward the direction close to the support rod 15, contacts the inclined surface at the top of the hollow plate 16 and squeezes the hollow plate 16. The hollow plate 16 moves downward under the squeezing of the detection rod 13. The hollow plate 16 moves downward and contacts the linkage plate 183 and squeezes the linkage plate 183. The linkage plate 183 moves downward under the squeezing of the hollow plate 16. The linkage plate 183 moves downward and drives the load-bearing rod 182 to move downward. The load-bearing rod 182 moves downward to pull the load-bearing spring 184. The load-bearing spring 184 is pulled by the load-bearing rod 182 to deform and store force. At the same time, the load-bearing rod 182 moves downward and drives the L-shaped Rod 186 moves downward to assist in fixing the top of the heavy box girder. If the heavy box girder slips during the flipping process, it will squeeze the L-shaped rod 186. The L-shaped rod 186 is squeezed upward by the heavy box girder. The L-shaped rod 186 moves upward to reset and drives the linkage plate 183 to move. The linkage plate 183 moves upward to squeeze the hollow plate 16. The hollow plate 16 is squeezed by the linkage plate 183 to squeeze the detection rod 13. The detection rod 13 is squeezed by the hollow plate 16 and moves away from the support rod 15. The detection rod 13 moves in the direction away from the support rod 15 and drives the detection plate 14 to move to further clamp the heavy box girder.

[0031] The load-bearing rod 182 moves downward, driving the L-shaped rod 186 to move downward. The L-shaped rod 186 moves downward, contacts the detection rod 193 and squeezes the detection rod 193. The detection rod 193 moves downward due to the squeezing of the L-shaped rod 186. The detection rod 193 moves downward, driving the detection plate 192 to move downward. The detection plate 192 moves downward to squeeze the liquid inside the detection frame 191. The liquid inside the detection frame 191 is squeezed by the detection plate 192 and enters the protective frame 194 through the hose. The liquid entering the protective frame 194 squeezes the protective plate 195. The protective plate 195 is squeezed by the liquid entering the protective frame 194 and moves away from the load-bearing plate 185. The protective plate 195 moves in the direction away from the load-bearing plate 185, driving the protection rod 196 to move. The protection rod 196 moves out of contact with the groove and releases the limit on the button 197. After the limit of the button 197 is released, the button 197 is manually pressed to drive the flip assembly 3 to perform the flip operation.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turning positioner for welding heavy box beams, comprising a guide rail (1), characterized in that: Also included is a clamping device; A turning frame (2) is slidably mounted on the top of the guide rail (1), a turning assembly (3) is arranged on the left side of the turning frame (2), a fixed side lifting mechanism (4) is arranged on the inner wall of the turning frame (2), a fixed side clamping mechanism (5) is arranged on the top of the fixed side lifting mechanism (4), a turning side lifting mechanism (6) is arranged on the inner wall of the turning frame (2), and a turning side clamping frame (7) is arranged on the top of the turning side lifting mechanism (6); The clamping device comprises a fixing rod (8), a displacement device (9), a clamping claw (10), a limiting groove (11), a detection groove (12), a detection rod (13), a detection plate (14), a support rod (15), a hollow plate (16), a limiting plate (17) and a support hole (20), wherein the fixing rod (8) is fixedly passed through the inner and outer walls of the flip side clamping frame (7), the displacement device (9) is slidably mounted on the circumferential surface of the fixing rod (8), the clamping claw (10) is fixedly mounted on the top of the displacement device (9), and the limiting groove (11) is opened. The detection groove (12) is provided on the left side of the flip side clamping frame (7), the detection groove (12) is provided on the surface of the clamping jaw (10), the detection rod (13) is fixedly passed through the front and rear walls of the clamping jaw (10), the detection plate (14) is fixedly installed on the rear side of the detection rod (13), the support hole (20) is provided on the left side wall of the clamping jaw (10), the support rod (15) is fixedly installed on the inner wall of the support hole (20), the hollow plate (16) is slidably installed on the circumferential surface of the support rod (15), and the limit plate (17) is slidably installed on the inner wall of the hollow plate (16); The inner wall of the flip side clamping frame (7) is provided with a protection device for preventing the heavy box beam from sliding off, and the inner wall of the flip side clamping frame (7) is provided with a detection device.

2. A tipping positioner for welding heavy box beams according to claim 1, characterized in that: A No. 1 spring is arranged between the detection groove (12) and the detection rod (13), the top of the clamping jaw (10) is arranged as an inclined surface, and the end of the detection rod (13) close to the hollow plate (16) is arranged as an arc surface.

3. A tipping positioner for welding heavy box beams according to claim 2, characterized in that: A No. 2 spring is arranged between the support rod (15) and the hollow plate (16), a No. 3 spring is arranged between the hollow plate (16) and the limit plate (17), and the bottom of the limit plate (17) is arranged as an inclined surface.

4. The tipping positioner for welding heavy box beams according to claim 3 is characterized in that: The protection device comprises a load-bearing plate (181), a load-bearing rod (182), a linkage plate (183), a load-bearing disc (185) and an L-shaped rod (186); the load-bearing plate (181) is fixedly mounted on the inner wall of the flip-side clamping frame (7); the load-bearing rod (182) is fixedly penetrated through the upper and lower walls of the load-bearing plate (181); the linkage plate (183) is fixedly mounted on the circumferential surface of the load-bearing rod (182); the load-bearing disc (185) is fixedly mounted on the bottom of the load-bearing rod (182); and the L-shaped rod (186) is fixedly mounted on the circumferential surface of the load-bearing rod (182).

5. The tipping positioner for welding heavy box beams according to claim 4, characterized in that: A load-bearing spring (184) is provided between the load-bearing plate (181) and the load-bearing rod (182); a square plate (187) is fixedly mounted on the top of the load-bearing rod (182); and the linkage plate (183) is in contact with the hollow plate (16).

6. The tipping positioner for welding heavy box beams according to claim 5, characterized in that: The detection device comprises a detection frame (191), a detection plate (192), a detection rod (193), a protection frame (194), a protection plate (195), a protection rod (196), a button (197) and a protection hole (198), wherein the detection frame (191) is fixedly mounted on the top of the load-bearing plate (181), the detection plate (192) is slidably mounted on the inner wall of the detection frame (191), the detection rod (193) is fixedly mounted on the top of the detection plate (192), the protection frame (194) is fixedly mounted on the inner wall of the flip side clamping frame (7), the protection plate (195) is slidably mounted on the inner wall of the protection frame (194), the protection rod (196) is fixedly mounted on the front side of the protection plate (195), the button (197) is fixedly mounted on the inner wall of the flip side clamping frame (7), and the protection hole (198) is opened on the inner wall of the flip side clamping frame (7).

7. The tipping positioner for welding heavy box beams according to claim 6, characterized in that: A hose is provided between the detection frame (191) and the protection frame (194), a No. 4 spring is provided between the detection frame (191) and the detection plate (192), and the button (197) is electrically connected to the flip assembly (3).

8. The tipping positioner for welding heavy box beams according to claim 7, characterized in that: Liquid is arranged inside the detection frame (191), liquid is arranged inside the protection frame (194), a rubber ring is arranged between the protection rod (196) and the protection frame (194), and a groove is arranged on the circumferential surface of the button (197).

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