A welding device based on prefabricated box beam steel frame

Abstract

The present invention discloses a welding device based on a prefabricated box girder steel bar skeleton, which specifically relates to the technical field of box girder processing, including a workbench, a fixed seat is vertically installed in the middle position on one side of the upper surface of the workbench, a welding robot is detachably installed on the upper surface of the fixed seat; and a connecting piece is rotatably installed on one side of the fixed seat. The present invention completes the active switching of two limiting mechanisms through a power mechanism, and at the same time drives multiple clamps on the limiting mechanism to act synchronously, thereby completing the internal and external multiple clamping and fixing of the stirrups, and can additionally complete the top limiting action of the stirrups, and can complete the synchronous control of the clamps in different positions, making the welding work more efficient, and can complete the active feeding action of the limiting mechanism under the welding platform through the feeding mechanism, thereby completing the pre-installation action of the stirrups, and subsequently driving the welding platform to complete the flipping to complete the continuous welding action, thereby improving the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of box girder processing, in particular to welding equipment based on a prefabricated box girder steel bar skeleton. Background Art

[0002] In municipal road and bridge construction, box girders are indispensable. In order to improve construction efficiency, the structural parts and internal reinforced steel cages in the box girders are usually prefabricated. When processing the box girder bottom and web steel cages, the arranged box girder bottom and web stirrups need to be welded into three-in-one combined stirrups;

[0003] Afterwards, the external longitudinal reinforcement is welded on the outside of the combined stirrups, and the internal longitudinal reinforcement is welded on the inside of the combined stirrups, thereby forming the overall reinforcement of the box girder bottom and web. When welding the combined stirrups, a welding device is required to complete the combined welding of the bottom plate stirrups and the web stirrups, so as to complete the subsequent box girder processing actions.

[0004] Reference is made to a patent application with publication number CN113828975B which discloses an automated combined welding device for bottom web stirrups of a box girder. The welding device is equipped with a clamping device and a pressing device on a welding platform to complete the clamping process of the bottom plate stirrups and the web stirrups, thereby completing the welding action of the bottom plate stirrups and the web stirrups, so that the overall welding work is carried out stably and orderly, thereby improving the welding efficiency.

[0005] The welding device can complete the limiting work of the bottom plate stirrups and the web stirrups through the clamping device and the pressing device. However, during the limiting process, the welding device needs to repeatedly control and adjust the clamping device and the pressing device, which makes the overall limiting work operation more complicated. It cannot complete the fast and synchronous clamping work of the bottom plate stirrups and the web stirrups, and cannot complete the synchronous internal and external clamping and limiting action of the bottom plate stirrups and the web stirrups, which is not conducive to the operation and use of the operator;

[0006] At the same time, the welding device can only provide a single welding station. After a single welding is completed, it is necessary to wait for the material loading and unloading operations, and continuous welding operations cannot be performed, resulting in low overall welding efficiency. In addition, when a welding station fails, it needs to be shut down for maintenance and cannot be switched, which affects the normal operation of the welding equipment. Summary of the invention

[0007] The purpose of the present invention is to provide a welding device based on a prefabricated box girder steel bar skeleton to solve the above technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention is a welding device for a prefabricated box girder steel frame, comprising a workbench, a fixing seat is vertically installed at the middle position of one side of the upper surface of the workbench, a welding robot is detachably installed on the upper surface of the fixing seat, a connecting piece is rotatably installed on one side of the fixing seat, a flip motor is installed on the other side of the fixing seat, the output end of the flip motor is transmission-connected with the connecting piece, and a welding platform is detachably installed on the connecting piece, and the welding platform is spaced apart from the workbench;

[0010] Limiting mechanisms are installed on the upper and lower surfaces of the welding platform, and stirrups are restricted on the two limiting mechanisms. The multiple limiting clamping work of the stirrups is completed by the two limiting mechanisms. At the same time, a power mechanism is installed on the welding platform, and the power mechanism is linked with the two limiting mechanisms respectively. The active switching of the clamping states of the two limiting mechanisms is completed through the forward and backward movements of the power mechanism, thereby completing the switching control of the two limiting mechanisms, and a feeding mechanism is added under the welding platform. The feeding mechanism is arranged in coordination with the welding platform, and the active transportation of the stirrups is completed by the up and down movement of the feeding mechanism.

[0011] Furthermore, the stirrup component is composed of a bottom plate stirrup and two web stirrups, and a plurality of limit blocks are installed on the upper and lower surfaces of the welding platform. The plurality of limit blocks are respectively arranged in cooperation with the bottom plate stirrup and the two web stirrups, and preliminary restrictions on the bottom plate stirrup and the two web stirrups are respectively completed by the plurality of limit blocks. Guide blocks are removably installed at the four corners of the upper and lower surfaces of the welding platform, and active guiding and limiting of the stirrup component is completed by the four guide blocks.

[0012] Furthermore, the two limiting mechanisms each include a plurality of clamp members, which are evenly distributed on the welding platform, and the plurality of clamp members are respectively arranged in cooperation with the bottom plate stirrups and the two web stirrups, and the clamping action of the stirrup members is completed by the plurality of clamp members, and each clamp member includes a concave seat, and two No. 1 clamps are symmetrically and slidingly installed on both sides of the concave seat, and adjusting screws are passed through both sides of the concave seat through threaded engagement, and the front ends of the two adjusting screws are respectively rotatably connected to one side of the two No. 1 clamps, and a reinforcement piece is installed in the middle position of the concave seat, and the reinforcement piece cooperates with the two No. 1 clamps to complete the internal and external synchronous clamping and fixation of the bottom plate stirrups and the two web stirrups.

[0013] Furthermore, the reinforcement includes an adjusting frame, a sealing cover is installed on the top of the adjusting frame by bolt sealing, two slides are symmetrically slidably installed on both sides of the adjusting frame, and two sliding rods are symmetrically slidably penetrated on both sides of the adjusting frame, two No. 2 clamps are detachably fixed on the two sliding rods, and return springs are sleeved on the outside of the two sliding rods. The two slides are driven to move closer to each other by the two return springs, and an intake pipe is connected and installed on one side of the adjusting frame.

[0014] Furthermore, a rotating gear is rotatably installed in the middle position of one side of the adjustment frame, a No. 1 rack is installed on one side of one of the No. 2 splints, and a No. 2 rack is installed on the other side of the No. 2 splint, and the No. 1 rack and the No. 2 rack are both meshed and connected with the rotating gear, and the two No. 2 splints are driven to complete synchronous action through the cooperation of the rotating gear and the No. 1 rack and the No. 2 rack.

[0015] Furthermore, a sliding frame is installed on one side of the two No. 1 splints, a sliding piece is slidably engaged in the sliding frame, a limiting spring is installed between one side of the sliding piece and the sliding frame, a transmission shaft is rotatably passed through the sliding piece, a traveling gear is detachably fixedly sleeved on the bottom of the transmission shaft, and a No. 3 rack is installed on one side of the two No. 2 splints, the two No. 3 racks are respectively meshed with the traveling gears on the two No. 1 splints, the transmission shaft and the traveling gear are pushed to mesh with the No. 3 rack through the limiting spring, a telescopic rod is detachably fixedly installed on the top of the transmission shaft, a pressing arm is installed on the top of the telescopic rod, and the pressing arm is synchronously driven by the No. 3 rack and the traveling gear to swing to complete the clamping action.

[0016] Furthermore, the power mechanism includes an electric cylinder installed on the welding platform through a bracket, a power chamber is arranged on one side of the electric cylinder on the welding platform, a piston member is slidingly and sealingly installed in the power chamber, a piston rod is removably fixed on one side of the piston member, the front end of the piston rod corresponds to the sliding extension of the power chamber, and the front end of the piston rod is transmission-connected to the output end of the electric cylinder.

[0017] Furthermore, the piston member divides the power chamber into zone 1 and zone 2 front and back, and zone 1 and zone 2 are respectively connected to two limit mechanisms, and the two limit mechanisms are respectively controlled through zone 1 and zone 2.

[0018] Furthermore, an inflation tube is installed on one side of area No. 1 and area No. 2, and a diversion chamber is installed on the other side of area No. 1 and area No. 2 through a pipeline, and a plurality of branch pipes are installed side by side on the diversion chamber, and the diversion chambers on area No. 1 and area No. 2 are connected to the two limit mechanisms through pipelines respectively.

[0019] Furthermore, the feeding mechanism includes electric slides symmetrically installed on both sides of the fixed seat, and a connecting piece is commonly installed at the output ends of the two electric slides. A bracket is installed on the connecting piece, and multiple supports are detachably installed on the bracket. The multiple supports are used to stably lift the stirrups, and the stirrups are pushed onto the limiting mechanism through the cooperation of the two electric slides and the multiple supports to complete the loading.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention is provided with a limiting mechanism, and the two No. 1 clamping plates complete the clamping of the outer side of the stirrup member through the two No. 1 clamping plates, and then the power is provided by the power mechanism, and the two No. 2 clamping plates are pushed to move away from each other through the two sliding rods, so that the inside and outside of the stirrup member are clamped and fixed synchronously under the synchronous cooperation of the two No. 1 clamping plates and the No. 2 clamping plates, so that the stirrup member obtains a stable clamping effect, and at the same time, the two No. 2 clamping plates are actively restricted by the rotating gear and the No. 1 rack and the No. 2 rack, so that the two No. 2 clamping plates maintain synchronization during movement, and the clamping effect of the stirrup member is further improved;

[0022] The present invention is provided with a power mechanism, and only needs to start the electric cylinder to make the clamping member complete the clamping of the stirrup member on the upper surface of the welding platform. At the same time, due to the movement of the piston member, the gas in the clamping member on the lower surface of the welding platform is sucked into the second zone, so that the limit mechanism on the lower surface of the welding platform completes the synchronous unlocking action, so that one limit mechanism completes the clamping action, and the other limit mechanism completes the unlocking action, thereby completing the continuous follow-up switching action. It only needs to control the forward and backward advancement of the electric cylinder to complete the synchronous switching control of multiple clamps on the two limit mechanisms, without the need for separate control, thereby reducing the difficulty of operation;

[0023] The present invention is provided with a feeding mechanism, which can complete the active feeding action of the limiting mechanism under the welding platform, so as to complete the pre-installation action of the stirrup parts, without waiting for the loading and unloading actions of the stirrup parts. At the same time, welding stations are added on the upper and lower surfaces of the welding platform, which provides convenience for welding work and does not require shutdown for maintenance, making the welding work more flexible and able to complete the switching of different working modes according to actual operating needs, which is conducive to the efficient and stable performance of the welding work.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall front view of the present invention;

[0026] Figure 2 A schematic diagram showing the distribution of the welding robot and the welding platform of the present invention;

[0027] Figure 3 It is a schematic diagram of installing the limiting mechanism of the present invention on a welding platform;

[0028] Figure 4 It is a schematic diagram of the connection between the limiting mechanism and the stirrup member of the present invention;

[0029] Figure 5 It is a schematic diagram of the distribution of the limiting mechanism and the power mechanism of the present invention;

[0030] Figure 6It is a schematic diagram of the power mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the clamp of the present invention;

[0032] Figure 8 It is a schematic diagram of the distribution of the adjustment frame of the present invention on the concave seat;

[0033] Fig. 9 It is a schematic diagram of the structure of the reinforcement member of the present invention;

[0034] Fig.10 It is a schematic diagram of the distribution of the pressing arm and the first clamping plate of the present invention;

[0035] Fig.11 It is a schematic diagram of the distribution of two pressure arms of the present invention;

[0036] Fig.12 It is a schematic diagram of the meshing of the third rack and the travel gear of the present invention;

[0037] Fig.13 It is a schematic diagram of the feeding mechanism of the present invention;

[0038] Fig.14 It is a schematic diagram of the interior of the piston cylinder of the present invention.

[0039] In the figure: 1. workbench; 2. fixed seat; 3. welding robot; 4. connecting piece; 5. flip motor; 6. welding platform; 7. stirrups; 71. stirrups of bottom plate; 72. stirrups of web plate; 73. limit block; 74. guide block; 8. fixture; 81. concave seat; 82. No. 1 clamping plate; 83. adjusting screw; 9. reinforcement; 91. adjusting frame; 92. sealing cover; 93. slide plate; 94. slide bar; 95. No. 2 clamping plate; 96. reset spring; 97. intake pipe; 10. rotating gear; 11. No. 1 rack; 12. No. 2 rack; 13. sliding frame; 14. Sliding piece; 15. Limiting spring; 16. Transmission shaft; 17. Traveling gear; 18. Rack No. 3; 19. Telescopic rod; 20. Pressing arm; 21. Electric cylinder; 22. Power chamber; 221. Zone No. 1; 222. Zone No. 2; 23. Piston piece; 24. Piston rod; 25. Inflating pipe; 26. Diverter chamber; 27. Branch pipe; 28. Electric slide; 29. ​​Connecting piece; 30. Bracket; 31. Support platform; 32. Piston cylinder; 33. Seal; 34. Follow-up rod; 35. Tube No. 1; 36. Tube No. 2; 37. Pull rod; 38. Spray chamber; 39. Nozzle. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] Embodiment 1: The present invention provides a technical solution: Figures 1 to 14 As shown, a welding device for a prefabricated box beam steel bar skeleton comprises a workbench 1, a fixing seat 2 is vertically installed at the middle position of one side of the upper surface of the workbench 1, a welding robot 3 is detachably installed on the upper surface of the fixing seat 2, a connecting piece 4 is rotatably installed on one side of the fixing seat 2, a flip motor 5 is installed on the other side of the fixing seat 2 through a bracket, the output end of the flip motor 5 is transmission-connected with the connecting piece 4, and a welding platform 6 is detachably installed on the connecting piece 4, and the welding platform 6 is spaced apart from the workbench 1;

[0043] Limiting mechanisms are installed on the upper and lower surfaces of the welding platform 6, and stirrups 7 are restricted on the two limiting mechanisms. The two limiting mechanisms complete the multiple limiting clamping work of the stirrups 7. At the same time, a power mechanism is installed on the welding platform 6, and the power mechanism is linked with the two limiting mechanisms respectively. The active switching of the clamping state of the two limiting mechanisms is completed through the forward and backward movements of the power mechanism, so as to complete the switching control of the two limiting mechanisms, and a feeding mechanism is added below the welding platform 6. The feeding mechanism is arranged in coordination with the welding platform 6, and the active conveying of the stirrups 7 is completed by the up and down movement of the feeding mechanism. At the same time, the active cleaning action of the stirrups 7 is synchronously completed during the conveying of the feeding mechanism;

[0044] Among them, the stirrup member 7 is composed of a bottom plate stirrup 71 and two web stirrups 72, and the bottom plate stirrup 71 and the two web stirrups 72 are spliced ​​together into a U-shaped structure, and a plurality of limit blocks 73 are installed on the upper surface and the lower surface of the welding platform 6, and the plurality of limit blocks 73 are respectively arranged in cooperation with the bottom plate stirrup 71 and the two web stirrups 72, and the preliminary restriction of the bottom plate stirrup 71 and the two web stirrups 72 is respectively completed by the plurality of limit blocks 73, and guide blocks 74 are detachably installed at the four corners of the upper surface and the lower surface of the welding platform 6, and the four guide blocks 74 are respectively in contact with the four corners of the stirrup member 7, and the active guiding and limiting of the stirrup member 7 is completed by the four guide blocks 74, and the four guide blocks 74 are provided with inclined surfaces on the side facing the stirrup member 7, and the guidance of the stirrup member 7 is completed by the inclined surfaces, and the plurality of limit blocks 73 are provided with limit grooves that cooperate with the bottom plate stirrup 71 and the two web stirrups 72.

[0045] Among them, electrical components such as the welding robot 3, the flip motor 5, the electric cylinder 21 and the electric slide 28 are all connected to switches through wires, and the switches are electrically connected to the controller. The specific structure of the controller is not limited. At the same time, an absolute encoder is installed on the flip motor 5 for accurately positioning the flip motor 5.

[0046] Embodiment 2: Based on the limiting mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the limiting mechanism.

[0047] like Figures 3 to 5 and Figures 7 to 12 As shown, the two limiting mechanisms include a plurality of clamps 8, the number of which can be freely increased or decreased according to processing requirements, and the plurality of clamps 8 are evenly distributed on the welding platform 6, and the plurality of clamps 8 are respectively arranged in cooperation with the bottom plate stirrups 71 and the two web stirrups 72, and the clamping action of the stirrups 7 is completed by the plurality of clamps 8, each clamp 8 includes a concave seat 81, and two No. 1 clamps 82 are symmetrically and slidably installed on both sides of the concave seat 81, and adjusting screws 83 are penetrated by threaded engagement on both sides of the concave seat 81, and a handle is installed at the tail of the adjusting screw 83, and the front ends of the two adjusting screws 83 are respectively rotatably connected to one side of the two No. 1 clamps 82, and a reinforcing member 9 is installed in the middle position of the concave seat 81, and the inner and outer synchronous clamping and fixing of the bottom plate stirrups 71 and the two web stirrups 72 are completed by the cooperation of the reinforcing member 9 and the two No. 1 clamps 82;

[0048] It is worth noting that: when limiting the stirrup 7: by providing a limiting mechanism, after the stirrup 7 is initially limited, at this time, for stirrups 7 of different sizes, the adjusting screw 83 can be rotated accordingly to push the two No. 1 clamping plates 82 to move closer to or away from each other in the concave seat 81 to complete the adaptation adjustment, and the two No. 1 clamping plates 82 are used to clamp the outer side of the stirrup 7, and then the power is provided by the power mechanism, and the pressurized gas is synchronously introduced into the adjustment frame 91 through the air inlet pipe 97, and then the gas gathers between the two slides 93, thereby pushing the two slides 93 away from each other. At this time, the reset spring 96 is compressed, and at the same time, the two No. 2 clamping plates 95 are pushed to move away from each other through the two sliding rods 94. When the two No. 2 clamping plates 95 move away from each other, they are in contact with the inner side of the stirrup 7. The contact is completed, so the internal and external synchronous clamping and fixing of the stirrup 7 is completed under the synchronous cooperation of the two No. 1 clamps 82 and the No. 2 clamps 95, so that the stirrup 7 obtains a stable clamping effect. At the same time, when the two No. 2 clamps 95 move away from each other, since the No. 1 racks 11 and the No. 2 racks 12 on the two No. 2 clamps 95 are meshed with the rotating gear 10, the active restriction of the two No. 2 clamps 95 is completed through the rotating gear 10 and the No. 1 racks 11 and the No. 2 racks 12. When the No. 1 rack 11 moves with one of the No. 2 clamps 95, it is guided by the rotating gear 10 to drive the No. 2 rack 12 and the other No. 2 clamp 95 to move synchronously close to and away from each other, so that the two No. 2 clamps 95 maintain synchronization during movement, further improving the clamping effect of the stirrup 7;

[0049] In the embodiment of the present invention, the reinforcement member 9 includes an adjustment frame 91, the top of the adjustment frame 91 is open, a sealing cover 92 is installed on the top of the adjustment frame 91 through bolt sealing, a handle is installed on the top of the sealing cover 92, two slide plates 93 are symmetrically slidably installed on both sides of the adjustment frame 91, and two slide bars 94 are symmetrically slidably penetrated on both sides of the adjustment frame 91, two No. 2 splints 95 are detachably fixed on the two slide bars 94, and the No. 2 splints 95 are distributed parallel to the No. 1 splint 82, and reset springs 96 are sleeved on the outside of the two slide bars 94, and the reset springs 96 is correspondingly arranged between the inner wall of the adjustment frame 91 and the slide plate 93. The two slide plates 93 are driven to move closer to each other by two return springs 96. A stopper is installed on the outer wall of one of the slide plates 93. The stopper is in contact with the other slide plate 93 under normal conditions. The two slide plates 93 are spaced apart by the stopper, which is convenient for subsequent gas introduction. An air intake pipe 97 is connected and installed on one side of the adjustment frame 91. The output end of the air intake pipe 97 is matched with the two slide plates 93. A slideway is opened in the concave seat 81. The two No. 1 clamps 82 and No. 2 clamps 95 are slidably engaged in the slideway.

[0050] Among them, a rotating gear 10 is rotatably installed in the middle position of one side of the adjustment frame 91, a No. 1 rack 11 is installed on one side of one No. 2 clamping plate 95, and a No. 2 rack 12 is installed on the other side of the No. 2 clamping plate 95, and the No. 1 rack 11 and the No. 2 rack 12 are both meshed and connected with the rotating gear 10, and the two No. 2 clamping plates 95 are driven to complete synchronous action through the cooperation of the rotating gear 10 with the No. 1 rack 11 and the No. 2 rack 12. A sliding frame 13 is installed on one side of the two No. 1 clamping plates 82, and a sliding member 14 is slidably engaged in the sliding frame 13. A limiting spring 15 is installed between one side of the sliding member 14 and the sliding frame 13, and a transmission shaft 16 is rotatably penetrated on the sliding member 14, and a removable fixed member is provided at the bottom of the transmission shaft 16. The fixed sleeve is provided with a travel gear 17, and a No. 3 rack 18 is installed on one side of the two No. 2 clamps 95. The two No. 3 racks 18 are respectively meshed with the travel gears 17 on the two No. 1 clamps 82. The transmission shaft 16 is pushed by the limit spring 15, and the travel gear 17 is meshed with the No. 3 rack 18. A telescopic rod 19 is detachably fixedly installed on the top of the transmission shaft 16. The telescopic rod 19 can be used in a manual telescopic rod 19, an electric telescopic rod 19 and a threaded telescopic rod 19 to complete the up and down lifting action. A pressing arm 20 is installed on the top of the telescopic rod 19. The pressing arm 20 is normally distributed in parallel with the No. 1 clamp 82, and the pressing arm 20 is synchronously driven by the No. 3 rack 18 and the travel gear 17 to swing to complete the pressing action;

[0051] It is worth mentioning that: a pressure arm 20 is provided on one side of the two No. 1 clamping plates 82. Since a No. 3 rack 18 is installed on one side of the two No. 2 clamping plates 95, when the two No. 2 clamping plates 95 perform a clamping action, the No. 3 rack 18 is linked to complete the follow-up movement, and the No. 3 rack 18 pushes the traveling gear 17 to rotate, thereby driving the transmission shaft 16 and the pressure arm 20 to complete the follow-up swing, so that the pressure arm 20 swings to the top of the stirrup 7 to complete the clamping, thereby completing the multiple fixation of the stirrup 7, and the initial position of the pressure arm 20 can be fine-tuned by the telescopic rod 19. At the same time, when the No. 1 clamping plate 82 is adjusted, it is only necessary to pull the slide 14 to move in the sliding frame 13 and compress the limit spring 15, so that the traveling gear 17 is separated from the No. 3 rack 18, so as to avoid the initial position of the pressure arm 20 from being offset, which is beneficial to the operator's adjustment. At the same time, it is convenient for the operator to complete active control according to the swing amount of the pressure arm 20, so that the pressure arm 20 provides a stable clamping effect.

[0052] Embodiment 3: Based on the power mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the power mechanism.

[0053] like Figure 6As shown, the power mechanism includes an electric cylinder 21 installed on the welding platform 6 through a bracket, a power chamber 22 is arranged on one side of the electric cylinder 21 on the welding platform 6, a piston member 23 is installed in the power chamber 22 in a sliding seal, and a piston rod 24 is detachably fixed on one side of the piston member 23, the front end of the piston rod 24 extends out of the power chamber 22 corresponding to the sliding seal, and the contact position between the piston rod 24 and the power chamber 22 is sealed, and the front end of the piston rod 24 is transmission-connected to the output end of the electric cylinder 21, the piston member 23 divides the power chamber 22 into a No. 1 zone 221 and a No. 2 zone 222 front and back, and the No. 1 zone 221 and the No. 2 zone 222 are connected with two limit mechanisms respectively, and the two limit mechanisms are controlled respectively by the No. 1 zone 221 and the No. 2 zone 222, and the No. 1 zone 221 and the No. 2 zone 222 are connected to the No. 2 zone 221 and the No. 2 zone 222. The two sides are connected and installed with an air charging pipe 25, and a No. 1 solenoid valve for controlling the on-off thereof is installed at the end of the air charging pipe 25. In order to ensure that the power chamber 22 provides a sufficient amount of gas, a certain amount of gas is charged into the No. 1 area 221 and the No. 2 area 222 through the air charging pipe 25 to ensure that sufficient thrust is provided later. A diverter chamber 26 is installed on the other side of the No. 1 area 221 and the No. 2 area 222 through a pipeline, and a plurality of branch pipes 27 are installed side by side on the diverter chamber 26, and a No. 2 solenoid valve for controlling the on-off thereof is installed at the ends of the plurality of branch pipes 27. The diverter chambers 26 on the No. 1 area 221 and the No. 2 area 222 are respectively connected with the two limit mechanisms through pipelines, and at the same time, the plurality of branch pipes 27 on the diverter chambers 26 in the No. 1 area 221 and the No. 2 area 222 are respectively connected with the plurality of air inlet pipes 97 on the two limit mechanisms through pipelines;

[0054] It is worth noting that when the two limit mechanisms are actively switched, by providing a power mechanism, it is only necessary to start the electric cylinder 21 to push the piston rod 24 and the piston member 23 forward in the power chamber 22, driving the gas in the No. 1 zone 221 to be pushed into the adjustment frame 91 of the plurality of clamp members 8 to complete the expansion action of the clamp members 8, so that the clamp members 8 complete the clamping of the stirrup members 7 on the upper surface of the welding platform 6. At the same time, due to the movement of the piston member 23, the piston member 23 completes the suction action in the No. 2 zone 222, and the gas in the clamp member 8 on the lower surface of the welding platform 6 is sucked to the No. 2 zone 221. In area 222, the limiting mechanism on the lower surface of the welding platform 6 completes the synchronous unlocking action, so that one limiting mechanism completes the clamping action, and the other limiting mechanism completes the unlocking action, thereby completing the continuous follow-up switching action, which can ensure the stable clamping of the stirrup 7, and at the same time facilitate the loading action of the limiting mechanism on the lower surface of the welding platform 6, ensuring the continuous progress of the welding work. Subsequently, it is only necessary to control the forward and backward advancement of the electric cylinder 21 to complete the synchronous switching control of multiple clamps 8 on the two limiting mechanisms, without the need for separate control. The overall operation is convenient and the difficulty of operation is reduced.

[0055] Embodiment 4: Based on the feeding mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the feeding mechanism.

[0056] like Fig.13 and Fig.14 As shown, the feeding mechanism includes electric slides 28 symmetrically installed on both sides of the fixed seat 2, and a connector 29 is commonly installed at the output ends of the two electric slides 28. A bracket 30 is installed on the connector 29, and a plurality of brackets 31 are detachably installed on the bracket 30. The plurality of brackets 31 are distributed in coordination with the stirrups 7, and the stirrups 7 are stably lifted by the plurality of brackets 31. Grooves that cooperate with the stirrups 7 are provided on the plurality of brackets 31, and the stirrups 7 are pushed to the limiting mechanism through the coordination of the two electric slides 28 and the plurality of brackets 31 to complete the locking and feeding;

[0057] It is worth noting that when the stirrups 7 are pre-loaded: a feeding mechanism is provided, and the stirrups 7 are first spliced ​​on the bracket 30 with the help of a handling robot, and the support and limiting of the stirrups 7 are completed through multiple brackets 31, so as to complete the pre-installation of the stirrups 7, and then the electric slide 28 is started, and the bracket 30 and the stirrups 7 are linked to move up and connect with the lower surface of the welding platform 6, so as to transfer the stirrups 7 to the limiting mechanism on the lower surface of the welding platform 6. At this time, the power mechanism is operated to lock the limiting mechanism on the lower surface of the welding platform 6. At this time, the limiting mechanism on the upper surface of the welding platform 6 is unlocked, so that the handling robot can transfer the welded stirrups 7. The bracket 30 is subsequently reset, the turning motor 5 is started, and the welding platform 6 is linked to complete the turning, thereby completing the active switching of the welding station, completing the continuous welding work of the stirrup 7, and improving the welding efficiency. At the same time, when the bracket 30 moves upward, the pull rod 37 is synchronously driven to move upward, thereby linking the seal 33 to move in the piston cylinder 32, so that the gas in the piston cylinder 32 is pushed into the spray chamber 38 through the second pipe 36, and the welding position of the stirrup 7 is purged through the nozzle 39, thereby ensuring the cleanliness of the welding area of ​​the stirrup 7, which is conducive to the subsequent welding work. When it is subsequently reset, the gas is introduced into the piston cylinder 32 again through the first pipe 35 and waits for subsequent standby;

[0058] In the embodiment of the present invention, a piston cylinder 32 is installed on one side of the two electric slides 28 through a bracket, the bottoms of the two piston cylinders 32 are open, and a seal 33 is installed in the two piston cylinders 32 for sliding sealing. A follower rod 34 is installed at the center of the top of the two seals 33. The top of the follower rod 34 slides through the top of the piston cylinder 32. A No. 1 pipe 35 is installed on one side of the top of the two piston cylinders 32. A No. 1 one-way valve for introducing gas into the piston cylinder 32 in one direction is installed at the end of the No. 1 pipe 35. The other side of the top of each piston cylinder 32 is connected to a No. 2 pipe 36, and a No. 2 one-way valve is installed at the end of the No. 2 pipe 36 to lead the gas out of the piston cylinder 32 in one direction. A pull rod 37 is installed on the top of the follower rod 34, and the bottom of the pull rod 37 is connected to the connecting piece 29. A spray chamber 38 is installed on the connecting piece 29 on one side of the two electric slides 28 through a bracket, and a plurality of nozzles 39 are connected side by side at the front end of the spray chamber 38, and the output ends of the plurality of nozzles 39 are directed toward the welding area of ​​the stirrup 7, and the spray chamber 38 is connected to the No. 2 pipe 36 through a pipeline.

[0059] The present invention provides a welding device for a prefabricated box girder steel frame, and the specific working principle is as follows: first, the stirrups 7 are correspondingly transferred to the welding platform 6 by a handling robot, and the initial positioning of the stirrups 7 is completed through the limiting interval formed by the guide block 74 and multiple limiting blocks 73 reserved on the welding platform 6, so that the bottom plate stirrups 71 and the two web stirrups 72 are initially fixed;

[0060] By starting the power mechanism, one of the limit mechanisms is driven by the power mechanism to complete the clamping action, and at this time the other limit mechanism performs a reset action, thereby completing the active switching of the two limit mechanisms, and at the same time, the power mechanism drives the multiple clamps 8 on the limit mechanisms to act synchronously, thereby completing the internal and external multiple clamping and fixing of the stirrup member 7, and the limit mechanism can additionally complete the top limit action of the stirrup member 7, ensuring the stability of the stirrup member 7, and at the same time, the overall operation is convenient, and the synchronous control of the clamps 8 at different positions can be completed, and then the welding work of the stirrup member 7 welding area is completed by the welding robot 3, so that the welding work is more efficient and convenient for the operator to operate, and a feeding mechanism is added under the welding platform 6;

[0061] The feeding mechanism can complete the active feeding action of the limiting mechanism under the welding platform 6, so as to complete the pre-installation action of the stirrup 7. Subsequently, the welding platform 6 can be driven to complete the flipping to complete the continuous welding action, thereby improving the welding efficiency. There is no need to wait for the loading and unloading actions of the stirrup 7. At the same time, welding stations are added to the upper and lower surfaces of the welding platform 6. When one of the welding stations is damaged, another welding station can be quickly switched to complete the welding work, which provides convenience for the welding work. There is no need to stop the machine for maintenance, making the welding work more flexible, and can complete the switching of different working modes according to actual operation needs. It can use continuous switching to flip the welding platform 6 to complete continuous welding, or use a fixed welding platform 6 to perform welding work. It can be freely switched according to different welding environments, which is conducive to the efficient and stable performance of welding work.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device for a prefabricated box girder steel frame, comprising a workbench (1), a fixing seat (2) vertically mounted in the middle of one side of the upper surface of the workbench (1), and a welding robot (3) detachably mounted on the upper surface of the fixing seat (2), characterized in that: A connecting member (4) is rotatably mounted on one side of the fixing seat (2), and a flip motor (5) is mounted on the other side of the fixing seat (2). The output end of the flip motor (5) is drivingly connected to the connecting member (4), and a welding platform (6) is detachably mounted on the connecting member (4). The welding platform (6) is spaced apart from the workbench (1); Limiting mechanisms are installed on the upper and lower surfaces of the welding platform (6), and stirrups (7) are restricted on the two limiting mechanisms. The two limiting mechanisms complete multiple limiting clamping work of the stirrups (7). At the same time, a power mechanism is installed on the welding platform (6), and the power mechanism is linked with the two limiting mechanisms respectively. The clamping state of the two limiting mechanisms is actively switched through the forward and backward movements of the power mechanism, thereby completing the switching control of the two limiting mechanisms. A feeding mechanism is added below the welding platform (6). The feeding mechanism is arranged in coordination with the welding platform (6), and the stirrups (7) are actively transported through the upward and downward movement of the feeding mechanism. The stirrup member (7) is composed of a bottom plate stirrup (71) and two web stirrups (72). The two limiting mechanisms each include a plurality of clamp members (8). The plurality of clamp members (8) are evenly distributed and arranged on the welding platform (6). The plurality of clamp members (8) are respectively arranged in cooperation with the bottom plate stirrup (71) and the two web stirrups (72). The stirrup member (7) is clamped by the plurality of clamp members (8). Each clamp member (8) includes a concave seat (81). Two No. 1 clamping plates (82) are symmetrically and slidably installed on both sides of the inner side, and adjusting screws (83) are threadedly screwed through the two sides of the concave seat (81), and the front ends of the two adjusting screws (83) are respectively rotatably connected to one side of the two No. 1 clamping plates (82), and a reinforcing member (9) is installed at the middle position of the concave seat (81), and the reinforcing member (9) cooperates with the two No. 1 clamping plates (82) to complete the internal and external synchronous clamping and fixing of the bottom plate stirrups (71) and the two web stirrups (72); The power mechanism comprises an electric cylinder (21) mounted on a welding platform (6) via a bracket, a power chamber (22) being arranged on one side of the electric cylinder (21) on the welding platform (6), a piston member (23) being slidably and sealably mounted in the power chamber (22), a piston rod (24) being detachably fixed on one side of the piston member (23), a front end of the piston rod (24) being arranged to slide out of the power chamber (22), and a front end of the piston rod (24) being transmission-connected to an output end of the electric cylinder (21); The piston member (23) divides the power chamber (22) into a first zone (221) and a second zone (222) at the front and rear sides, and the first zone (221) and the second zone (222) are respectively connected to the two limit mechanisms, and the two limit mechanisms are respectively controlled by the first zone (221) and the second zone (222); The feeding mechanism comprises electric slides (28) symmetrically mounted on both sides of a fixed seat (2); a connecting piece (29) is commonly mounted at the output ends of the two electric slides (28); a bracket (30) is mounted on the connecting piece (29); a plurality of brackets (31) are detachably mounted on the bracket (30); the plurality of brackets (31) are used to stably lift the stirrup member (7); and the two electric slides (28) cooperate with the plurality of brackets (31) to push the stirrup member (7) onto the limiting mechanism to complete the feeding.

2. The welding equipment for prefabricated box beam reinforcement frame according to claim 1 is characterized in that: A plurality of limit blocks (73) are installed on the upper surface and the lower surface of the welding platform (6). The plurality of limit blocks (73) are respectively arranged in cooperation with the bottom plate stirrup (71) and the two web stirrups (72). The plurality of limit blocks (73) respectively complete preliminary restrictions on the bottom plate stirrup (71) and the two web stirrups (72). Guide blocks (74) are detachably installed at the four corners of the upper surface and the lower surface of the welding platform (6). The four guide blocks (74) complete active guiding and limiting of the stirrup member (7).

3. The welding equipment for prefabricated box beam reinforcement frame according to claim 1 is characterized in that: The reinforcing member (9) comprises an adjusting frame (91), a sealing cover (92) is installed on the top of the adjusting frame (91) by bolt sealing, two slide plates (93) are symmetrically slidably installed on both sides of the adjusting frame (91), two slide bars (94) are symmetrically slidably penetrated on both sides of the adjusting frame (91), two second clamping plates (95) are detachably fixed on the two slide bars (94), and return springs (96) are sleeved on the outside of the two slide bars (94), the two slide plates (93) are driven to move closer to each other by the two return springs (96), and an air intake pipe (97) is installed on one side of the adjusting frame (91) for communication.

4. The welding equipment for prefabricated box beam reinforcement frame according to claim 3 is characterized in that: A rotating gear (10) is rotatably mounted at the middle position of one side of the adjustment frame (91), a No. 1 rack (11) is mounted on one side of one No. 2 clamping plate (95), and a No. 2 rack (12) is mounted on the other side of the No. 2 clamping plate (95), and the No. 1 rack (11) and the No. 2 rack (12) are both meshed and connected with the rotating gear (10), and the two No. 2 clamping plates (95) are driven to complete synchronous action through the cooperation of the rotating gear (10) and the No. 1 rack (11) and the No. 2 rack (12).

5. The welding equipment for prefabricated box beam reinforcement frame according to claim 4 is characterized in that: A sliding frame (13) is installed on one side of the two No. 1 clamps (82), a sliding member (14) is slidably engaged in the sliding frame (13), a limit spring (15) is installed between one side of the sliding member (14) and the sliding frame (13), a transmission shaft (16) is rotatably passed through the sliding member (14), a travel gear (17) is detachably fixedly sleeved at the bottom of the transmission shaft (16), and a No. 3 rack (18) is installed on one side of the two No. 2 clamps (95), and the two No. 3 racks (18) are installed on one side of the two No. 3 clamps (95). The racks (18) are respectively meshed with the travel gears (17) on the two No. 1 clamping plates (82), and the transmission shaft (16) and the travel gear (17) are pushed to mesh with the No. 3 rack (18) through the limit spring (15). A telescopic rod (19) is detachably fixedly installed on the top of the transmission shaft (16), and a pressing arm (20) is installed on the top of the telescopic rod (19). The pressing arm (20) is synchronously driven by the No. 3 rack (18) and the travel gear (17) to swing to complete the pressing action.

6. The welding equipment for prefabricated box beam reinforcement frame according to claim 5, characterized in that: An inflation pipe (25) is installed on one side of the No. 1 zone (221) and the No. 2 zone (222), and a flow diversion chamber (26) is installed on the other side of the No. 1 zone (221) and the No. 2 zone (222) through a pipeline, and a plurality of branch pipes (27) are installed in parallel on the flow diversion chamber (26), and the flow diversion chambers (26) on the No. 1 zone (221) and the No. 2 zone (222) are respectively connected to the two limit mechanisms through pipelines.

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