Precast beam welding device and using method thereof

Abstract

The invention relates to the technical field of precast beam welding devices, and discloses a precast beam welding device and a using method thereof.The precast beam welding device comprises a fixing frame, a first electric cylinder, a second electric cylinder and a welding device, a guide plate is fixedly installed on the side wall of the lower portion of the lifting frame, loading blocks are attached to the side wall of the guide plate and the inner wall of the lifting frame in a sliding mode, the bottom of the inner wall of each loading block is provided with two side disc faces of a deflection disc in an attached mode, and an abutting block and a deflection block are fixedly connected to the side wall of each deflection disc. According to the precast beam welding device and the using method thereof, the welding gun head capable of automatically moving along the contact portion of the supporting steel plate and the precast beam box rib plate is arranged in the device, in the welding process, a worker does not need to hold welding gun equipment by hand for operation, and therefore the labor intensity of the worker is reduced; and a steel plate to be welded can be quickly positioned in the using process of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of precast beam welding devices, and specifically to a precast beam welding device and its usage method. Background Technique

[0002] A precast beam is a beam prefabricated and assembled by a factory according to a design plan. Precast beams are mainly divided into concrete structure beams and steel structure welded beams. During the production of a steel structure precast beam box, it is necessary to use a welding device to weld the support steel plates inside the precast beam box to the rib plates on the outside of the precast beam box. However, there are still some problems with existing precast beam welding devices: During the welding process of precast beams on the market, workers need to hold welding equipment to weld the contact parts between the support steel plates and the rib plates of the precast beam box. During the use of the device, the labor intensity of the workers is relatively high.

[0003] In view of the above problems, there is an urgent need to innovate and design on the basis of the original precast beam welding device. Summary of the Invention

[0004] The purpose of the present invention is to provide a precast beam welding device and its usage method to solve the following problems existing in the existing precast beam welding device in the above-mentioned background technique: During the welding process of precast beams on the market, workers need to hold welding equipment to weld the contact parts between the support steel plates and the rib plates of the precast beam box. During the use of the device, the labor intensity of the workers is relatively high.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A precast beam welding device, including: A fixed frame, on the top of which the rod body of a lifting frame and a first electric cylinder are installed; further including: A guiding plate is fixedly installed on the side wall of the lower part of the lifting frame. Loading blocks are slidably fitted on the side wall of the guiding plate and the inner wall of the lifting frame, and both sides of the disk surface of a deflection disk are fitted to the bottom of the inner wall of the loading block. A contact block and a deflection block are respectively fixedly connected to the side wall of the deflection disk. A main limiting plate is fixedly connected to the middle of the inner wall of the loading block. A locking and self-control mechanism is installed in the middle of the main limiting plate. The locking and self-control mechanism includes a guiding block that is slidably embedded in the inner wall of the main limiting plate, and symmetric vertical rods are slidably inserted into the upper and lower sides of the guiding block; A mobile end of the first electric cylinder is fixedly installed with an automatic positioning module for fixing a steel plate.

[0006] Preferably, a workbench for fixing the rib plates of the precast beam box is arranged at the lower part of the fixed frame. The bottom of the fixed frame is slidably embedded in a chute on one side of the top of the workbench. The screw rod of an electric screw rod is threadedly connected to the bottom of the fixed frame, and the motor of the electric screw rod is fixedly installed on the workbench, and the rod body of the electric screw rod rotatably penetrates through the workbench, so that the electric screw rod can drive the fixed frame to move.

[0007] Preferably, the automatic positioning module includes a moving platform fixedly arranged on the moving end of the first electric cylinder. The lower part of the moving platform is slidably embedded with symmetrically distributed positioning plates. The lower part of the positioning plate is provided with an inclined surface. A horizontal guide rod is slidably penetrated through the top of the positioning plate. Symmetrically distributed clamping springs are sleeved on both sides of the horizontal guide rod. The clamping springs are fixedly connected between the inner wall of the moving platform and the top side wall of the positioning plate. The top of the fixed frame is fixedly installed with symmetrically distributed first electric cylinders, so that the first electric cylinders can drive the movement of the moving platform.

[0008] Preferably, the rod body of the lifting frame is slidably penetrated through the fixed frame. The top of the fixed frame is fixedly installed with symmetrically distributed second electric cylinders. The moving end of the second electric cylinder is fixedly connected to the middle of the lifting frame. The end of the lifting frame is fixedly connected with a servo motor. The output shaft of the servo motor is fixedly connected with a transmission screw rod. The transmission screw rod is horizontally rotatably inserted on the lifting frame. The transmission screw rod penetrates through the side of the loading block away from the guiding plate to form a screw transmission structure. Symmetrically distributed limiting rods are arranged on both sides of the transmission screw rod. The limiting rods are horizontally slidably penetrated through the loading block, so that the transmission screw rod can drive the movement of the loading block.

[0009] Preferably, the side wall of the loading block is attached to the outer wall of the guiding plate. The bottom of the vertical groove opened on the side wall of the loading block is attached and inserted with a stress rod. A through guide groove is opened on the side wall of the guiding plate. The middle part of the rod body of the stress rod is attached and inserted in the through guide groove of the guiding plate. A welding torch head is fixedly connected to the convex disk at one end of the stress rod. The muzzle of the welding torch head faces the joint between the steel plate and the rib plate of the precast beam box. The other end of the stress rod is coaxially fixedly connected to the disk surface of the deflection disk. The convex disk at the end of the stress rod is attached to the side of the guiding plate away from the loading block, so that the stress rod can drive the movement of the deflection disk.

[0010] Preferably, horizontal contact blocks and deflection blocks are fixedly connected to both sides of the outer wall of the deflection disk. The ends of the contact blocks and the deflection blocks away from the deflection disk are both arranged towards the inner wall of the loading block. The axes of the contact blocks and the deflection blocks are coaxially arranged. The axis of the contact block passes through the rotation center of the deflection disk. Two groups of horizontally symmetrically distributed horizontal limiting plates and reset convex blocks are fixedly installed on the inner wall of the loading block. Horizontal planes are arranged at both the upper and lower ends of the deflection disk. The horizontal plane at the lower part of the deflection disk is attached to the corresponding horizontal limiting plate. The reset convex block is fixedly connected to the end side wall of the horizontal limiting plate. The bottom side wall of the contact block is attached to the corresponding reset convex block. A deflection limiting column is vertically fixedly connected to the edge of the disk surface of the deflection disk. The deflection limiting column is rotatably attached and inserted in the arc-shaped groove opened on the inner wall of the loading block, so that the deflection disk can drive the rotation of the deflection limiting column.

[0011] Preferably, symmetric auxiliary limiting plates are attached to the upper and lower sides of the main limiting plate. The side of the auxiliary limiting plate close to the deflection plate is flush with the side wall of the main limiting plate, and the side walls of the main limiting plate and the auxiliary limiting plate protrude from the inner wall of the loading block. Moreover, the side walls of the main limiting plate and the auxiliary limiting plate are on the moving path of the deflection block. A plug rod is fixedly connected to the side of the auxiliary limiting plate away from the deflection plate, and a pressure spring is sleeved on the side wall of the plug rod. The pressure spring is fixedly connected between the end face of the auxiliary limiting plate and the outer wall of the connecting frame. The plug rod slidably penetrates through the connecting frame. One end of the connecting frame is fixedly connected to the outer wall of the main limiting plate, and the other end of the connecting frame is fixedly connected to the side wall of the loading block, enabling the auxiliary limiting plate to move on the main limiting plate.

[0012] Preferably, a horizontal unlocking head is fixedly connected to the end face of the guiding block. The unlocking head slidably penetrates through the inner wall of the main limiting plate, and the end of the unlocking head away from the guiding block protrudes from the side wall of the main limiting plate. A one-way locking head is fixedly connected to the end of the vertical rod away from the guiding block. The cross-section of the one-way locking head is in a right trapezoidal structure, and the one-way locking head slidably penetrates through the outer wall of the main limiting plate. The end of the one-way locking head is fitted and inserted into the corresponding locking port on the outer wall of the auxiliary limiting plate. A return spring is sleeved on the outer side of the rod body of the vertical rod, and the return spring is fixedly connected between the outer wall of the guiding block and the end of the vertical rod, enabling the one-way locking head to drive the vertical rod to move.

[0013] Preferably, two sets of symmetrically distributed thrust rods and rotating arms are arranged on the side of the guiding block away from the unlocking head. The two ends of the thrust rod are fixedly connected to the inner wall of the guiding block. The thrust rod is fitted and inserted into the through chute opened at the end of the rotating arm. The convex shaft on the upper part of the rotating arm is rotatably embedded in the inner wall of the connecting frame, and a pressure head is fixedly installed at the end of the rotating arm. The pressure head faces the inner wall of the auxiliary limiting plate, enabling the rotating arm to drive the pressure head to rotate.

[0014] The operation method of the precast beam welding device includes the following steps: S1: The electric screw rod on the workbench can drive the fixed frame to move on the workbench. At this time, the welding structure and the positioning module on the fixed frame are horizontally moved. The user places the support steel plate to be welded under the positioning plate. Then, the first electric cylinder will drive the moving table and the positioning plate to move downward, so that the inclined plane of the positioning plate presses against the top of the support steel plate. The positioning plate will be forced to move and open, and the clamping spring will push the positioning plate to position the support steel plate through the reset action. The moving table will fix the support steel plate synchronously. The servo motor will drive the loading block to move along the limiting rod through the transmission screw rod; S2: The loading block drives the stress rod in the vertical slot to move along the through guide slot on the guide plate. When the stress rod moves obliquely upward along the guide slot on the guide plate, the stress rod drives the deflection block on the deflection plate to press against the secondary limiting plate in the locked state. The deflection plate will drive the welding torch head to rotate clockwise by the maximum angle through the stress rod. The deflection limiting column will move to the top of the arc slot on the moving loading block, and the muzzle of the welding torch head will face the oblique welding position of the steel plate for oblique welding. After the deflection block passes through the locking self-control mechanism, the deflection block will push the unlocking head to move. The unlocking head drives the one-way locking head to move through the guide block, so that the top end of the one-way locking head can enter the guide block. At the same time, the guide block drives the rotating arm to rotate through the thrust rod, and the pressure head at the top of the rotating arm will abut against the inner wall of the secondary limiting plate. At this time, the one-way locking head no longer locks the secondary limiting plate; S3: When the stress rod drives the deflection plate to move towards the reset bump at the top of the loading block, since the abutting block on the deflection plate will receive the reverse pressure from the reset bump, the deflection plate will rotate and reset under the action of the reverse pressure of the reset bump at this time. At this time, the welding torch head will be vertically aligned to weld the top of the steel plate and the precast beam box rib plate. Since the secondary limiting plate is no longer locked, the reset rotating deflection plate can push the secondary limiting plate to move backward first through the deflection block. At this time, the secondary limiting plate will push the rotating arm to reset again. At this time, the unlocking head will extend again, and at the same time, the one-way locking head can enter the opening of the guide block again. If the deflection plate is completely horizontally reset, the compression spring can push the secondary limiting plate to reset. At this time, the one-way locking head will re-enter the locking port on the secondary limiting plate under the pressure of the reset spring; S4: When the stress rod moves obliquely downward along the guide slot on the guide plate, the deflection plate will drive the welding torch head to rotate counterclockwise through the stress rod, so that the muzzle of the welding torch head will face the oblique welding position on the other side of the steel plate, and the locking self-control mechanism will operate according to the above steps, so as to realize the welding of the welding torch head along the fitting position of the steel plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: for the precast beam welding device and its using method, a welding torch head that can automatically move along the contact part between the support steel plate and the precast beam box rib plate is arranged inside the device. During the welding process, there is no need for workers to hold the welding torch equipment for operation, thereby reducing the labor intensity of workers. And during the use of the device, it can quickly position the steel plate to be welded. The specific content is as follows: 1. The bottom inner wall of the loading block is attached to both side surfaces of the offset turntable. The bottom of the vertical groove formed on the side wall of the loading block is closely inserted with a force-receiving rod. The middle part of the rod body of the force-receiving rod is closely inserted into the through guide groove of the guiding plate. A welding torch head is fixedly connected to the convex disk at one end of the force-receiving rod, and the other end of the force-receiving rod is coaxially fixedly connected to the surface of the offset turntable. Horizontally arranged abutting blocks and deflecting blocks are fixedly connected to both sides of the outer wall of the offset turntable. The axes of the abutting blocks and the deflecting blocks are coaxially arranged, and the axis of the abutting block passes through the rotation center of the offset turntable. When the loading block drives the force-receiving rod to move along the through guide groove on the guiding plate through the offset turntable, the force-receiving rod can drive the offset turntable to reciprocate synchronously within the loading block. When the offset turntable reciprocates vertically, the deflecting block on the offset turntable will be subjected to the corresponding pressures from the secondary limiting plate and the main limiting plate, so that the offset turntable can drive the force-receiving rod to rotate clockwise or counterclockwise by the same angle, enabling the welding torch head to always face the oblique contact position of the steel plate. 2. The automatic positioning module includes a moving platform fixedly arranged on the moving end of the first electric cylinder. Symmetrically distributed positioning plates are slidably embedded in the lower part of the moving platform. The lower part of the positioning plate is provided with an inclined surface. A horizontal guide rod slidably penetrates through the top of the positioning plate. Symmetrically distributed clamping springs are sleeved on both sides of the horizontal guide rod. The clamping springs are fixedly connected between the inner wall of the moving platform and the top side wall of the positioning plate. Symmetrically distributed first electric cylinders are fixedly installed on the top of the fixed frame. When the first electric cylinder pushes the moving frame downward to press against the top of the steel plate, the inclined surface at the bottom of the positioning plate will be forced to move. At this time, the positioning plate will compress the clamping spring, and the positioning plate will position the top of the steel plate under the action of the reverse pressure. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall external structure of the present invention; Figure 2 It is a schematic diagram of the installation structure of the fixed frame of the present invention; Figure 3 It is a schematic diagram of the installation structure of the positioning plate of the present invention; Figure 4 It is a schematic diagram of the installation structure of the lifting frame of the present invention; Figure 5 It is a schematic diagram of the installation structure of the transmission screw of the present invention; Figure 6 It is a schematic diagram of the installation structure of the secondary limiting plate of the present invention; Figure 7 It is a schematic diagram of the installation structure of the loading block of the present invention; Figure 8 It is a schematic diagram of the installation structure of the offset turntable of the present invention; Figure 9 It is a schematic diagram of the installation structure of the force-receiving rod of the present invention; Figure 10 It is a schematic diagram of the installation structure of the deflecting block of the present invention; Figure 11This is a schematic diagram of the guide block installation structure of the present invention; Figure 12 It is a schematic diagram of the vertical rod installation structure of the present invention.

[0017] In the figure: 1, fixed frame; 2, workbench; 3, electric screw; 4, first electric cylinder; 5, moving table; 6, positioning plate; 7, horizontal guide rod; 8, clamping spring; 9, second electric cylinder; 10, lifting frame; 11, guide plate; 12, loading block; 13, transmission screw; 14, limit rod; 15, servo motor; 16, force rod; 17, deflection plate; 18, welding gun head; 19, horizontal limit plate; 20, reset bump; 21. Resistance block; 22. Deflection block; 23. Main limiting plate; 24. Connecting frame; 25. Auxiliary limiting plate; 26. Locking automatic control mechanism; 2601. Guide block; 2602. Unlocking head; 2603. Vertical rod; 2604. Return spring; 2605. One-way locking head; 2606. Thrust rod; 2607. Rotating arm; 2608. Pressure head; 27. Insert rod; 28. Pressure spring; 29. ​​Deflection limiting column. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1-12 The present invention provides a technical solution: a prefabricated beam welding device, comprising: A fixed frame 1, on the top of which the rod body of the lifting frame 10 and the first electric cylinder 4 are installed; it also includes: a guide plate 11 is fixedly installed on the side wall of the lower part of the lifting frame 10, and the side walls of the guide plate 11 and the inner wall of the lifting frame 10 are slidably fitted with a loading block 12, and the bottom of the inner wall of the loading block 12 is fitted with the two side disk surfaces of the deflection disk 17, and the side walls of the deflection disk 17 are respectively fixedly connected with a resistance block 21 and a deflection block 22, and the middle part of the inner wall of the loading block 12 is fixedly connected with a main limiting plate 23, and the middle part of the main limiting plate 23 is installed with a locking automatic control mechanism 26, and the locking automatic control mechanism 26 includes a guide block 2601, which is slidably embedded in the inner wall of the main limiting plate 23, and symmetrical vertical rods 2603 are slidably inserted on the upper and lower sides of the guide block 2601; the moving end of the first electric cylinder 4 is fixedly installed with an automatic positioning module for fixing the steel plate.

[0020] The automatic positioning module includes a moving platform 5 fixedly arranged on the moving end of the first electric cylinder 4. Symmetrically distributed positioning plates 6 are slidably embedded in the lower part of the moving platform 5, and inclined surfaces are provided at the lower parts of the positioning plates 6. A horizontal guide rod 7 is slidably penetrated through the top of the positioning plate 6. Symmetrically distributed clamping springs 8 are sleeved on both sides of the horizontal guide rod 7, and the clamping springs 8 are fixedly connected between the inner wall of the moving platform 5 and the top side wall of the positioning plate 6. Symmetrically distributed first electric cylinders 4 are fixedly installed at the top of the fixed frame 1, so that the first electric cylinders 4 can drive the moving platform 5 to move. A workbench 2 for fixing the rib plate of the precast beam box is arranged at the lower part of the fixed frame 1. The bottom of the fixed frame 1 is slidably embedded in the chute on one side of the top of the workbench 2. The screw rod of the electric screw rod 3 is threadedly connected to the bottom of the fixed frame 1, and the motor of the electric screw rod 3 is fixedly installed on the workbench 2. The rod body of the electric screw rod 3 rotates through the workbench 2, so that the electric screw rod 3 can drive the fixed frame 1 to move. The rod body of the lifting frame 10 slides through the fixed frame 1. Symmetrically distributed second electric cylinders 9 are fixedly installed at the top of the fixed frame 1, and the moving ends of the second electric cylinders 9 are fixedly connected to the middle of the lifting frame 10. A servo motor 15 is fixedly connected to the end of the lifting frame 10, and a transmission screw rod 13 is fixedly connected to the output shaft of the servo motor 15. The transmission screw rod 13 is horizontally rotatably inserted on the lifting frame 10, and the transmission screw rod 13 penetrates through the side of the loading block 12 away from the guide plate 11 to form a screw drive structure. Symmetrically distributed limiting rods 14 are arranged on both sides of the transmission screw rod 13, and the limiting rods 14 horizontally slide through the loading block 12, so that the transmission screw rod 13 can drive the loading block 12 to move.

[0021] The side wall of the loading block 12 is attached to the outer wall of the guide plate 11. The bottom of the vertical groove opened on the side wall of the loading block 12 is fitted and inserted with a stress rod 16. A through guide groove is opened on the side wall of the guide plate 11, and the middle part of the rod body of the stress rod 16 is fitted and inserted in the through guide groove of the guide plate 11. A welding torch head 18 is fixedly connected to the convex disc at one end of the stress rod 16, and the muzzle of the welding torch head 18 faces the joint between the steel plate and the rib plate of the precast beam box. The other end of the stress rod 16 is coaxially fixedly connected to the disc surface of the deflection disc 17. The convex disc at the end of the stress rod 16 is attached to the side of the guide plate 11 away from the loading block 12, so that the stress rod 16 can slide along the guide groove on the guide plate 11.

[0022] On both sides of the outer wall of the deflection disc 17, there are horizontally fixed connection of a contact block 21 and a deflection block 22, and the ends of the contact block 21 and the deflection block 22 away from the deflection disc 17 are both arranged towards the inner wall of the loading block 12, and the axes of the contact block 21 and the deflection block 22 are coaxially arranged. The axis of the contact block 21 passes through the rotation center of the deflection disc 17. On the inner wall of the loading block 12, there are fixedly installed two groups of horizontally symmetrically distributed horizontal limiting plates 19 and reset protrusions 20. Horizontally planes are arranged at both the upper and lower ends of the deflection disc 17, and the horizontal plane at the lower part of the deflection disc 17 is fitted on the corresponding horizontal limiting plate 19. The reset protrusion 20 is fixedly connected to the end side wall of the horizontal limiting plate 19. The bottom side wall of the contact block 21 is fitted on the corresponding reset protrusion 20. At the edge of the disc surface of the deflection disc 17, there is a vertically fixedly connected deflection limiting column 29, and the deflection limiting column 29 is rotationally fitted and inserted into an arc-shaped groove opened on the inner wall of the loading block 12, so that the contact block 21 can drive the deflection disc 17 to rotate. On the upper and lower sides of the main limiting plate 23, there are symmetrically arranged secondary limiting plates 25 in a fitting manner. The side of the secondary limiting plate 25 close to the deflection disc 17 is flush with the side wall of the main limiting plate 23, and the side walls of the main limiting plate 23 and the secondary limiting plate 25 protrude from the inner wall of the loading block 12, and the side walls of the main limiting plate 23 and the secondary limiting plate 25 are on the moving path of the deflection block 22. The side of the secondary limiting plate 25 away from the deflection disc 17 is fixedly connected with a plug rod 27, and a compression spring 28 is sleeved on the side wall of the plug rod 27, and the compression spring 28 is fixedly connected between the end face of the secondary limiting plate 25 and the outer wall of the connecting frame 24. The plug rod 27 slidably penetrates through the connecting frame 24. One end of the connecting frame 24 is fixedly connected to the outer wall of the main limiting plate 23, and the other end of the connecting frame 24 is fixedly connected to the side wall of the loading block 12, so that the secondary limiting plate 25 can drive the plug rod 27 to move.

[0023] A horizontal unlocking head 2602 is fixedly connected to the end face of the guiding block 2601. The unlocking head 2602 slidably penetrates through the inner wall of the main limiting plate 23, and the end of the unlocking head 2602 away from the guiding block 2601 protrudes from the side wall of the main limiting plate 23. One end of the vertical rod 2603 away from the guiding block 2601 is fixedly connected with a one-way locking head 2605. The cross-section of the one-way locking head 2605 is in a right trapezoid structure. The one-way locking head 2605 slidably penetrates through the outer wall of the main limiting plate 23. The end of the one-way locking head 2605 is fitted and inserted into the corresponding locking port on the outer wall of the sub-limiting plate 25. A return spring 2604 is sleeved on the outer side of the rod body of the vertical rod 2603, and the return spring 2604 is fixedly connected between the outer wall of the guiding block 2601 and the end of the vertical rod 2603, so that the unlocking head 2602 can drive the guiding block 2601 to move. On the side of the guiding block 2601 away from the unlocking head 2602, there are two groups of symmetrically distributed thrust rods 2606 and rotating arms 2607. Both ends of the thrust rod 2606 are fixedly connected to the inner wall of the guiding block 2601. The thrust rod 2606 is fitted and inserted into the through chute opened at the end of the rotating arm 2607. The convex shaft on the upper part of the rotating arm 2607 is rotatably embedded in the inner wall of the connecting frame 24. A pressure head 2608 is fixedly installed at the end of the rotating arm 2607, and the pressure head 2608 faces the inner wall of the sub-limiting plate 25, so that the guiding block 2601 can drive the rotating arm 2607 to rotate.

[0024] The operation method of the precast beam welding device includes the following steps: S1: The electric screw rod 3 on the workbench 2 can drive the fixing frame 1 to move on the workbench 2. At this time, the welding structure and the positioning module on the fixing frame 1 are horizontally moved. The user places the support steel plate to be welded under the positioning plate 6. Then, the first electric cylinder 4 will drive the moving table 5 and the positioning plate 6 to move downward, so that the inclined surface of the positioning plate 6 presses against the top of the support steel plate. The positioning plate 6 will be forced to move and open, and the clamping spring 8 will push the positioning plate 6 to position the support steel plate through the reset action. The moving table 5 will fix the support steel plate synchronously. The servo motor 15 will drive the loading block 12 to move along the limiting rod 14 through the transmission screw rod 13; S2: The loading block 12 drives the stress rod 16 in the vertical slot to move along the through guide slot on the guide plate 11. When the stress rod 16 moves obliquely upward along the guide slot on the guide plate 11, the stress rod 16 drives the deflection block 22 on the deflection disc 17 to press against the secondary limiting plate 25 in the locked state. The deflection disc 17 will drive the welding torch head 18 to rotate clockwise by the maximum angle through the stress rod 16. The deflection limiting post 29 will reach the top of the arc-shaped slot on the moving loading block 12. The muzzle of the welding torch head 18 will face the oblique welding position of the steel plate to perform oblique welding. After the deflection block 22 passes through the locking self-control mechanism 26, the deflection block 22 will push the unlocking head 2602 to move. The unlocking head 2602 drives the one-way locking head 2605 to move through the guide block 2601, so that the top end of the one-way locking head 2605 can enter the guide block 2601. At the same time, the guide block 2601 drives the rotating arm 2607 to rotate through the thrust rod 2606. The pressure head 2608 at the top of the rotating arm 2607 will abut against the inner wall of the secondary limiting plate 25. At this time, the one-way locking head 2605 no longer locks the secondary limiting plate 25; S3: When the stress rod 16 drives the deflection disc 17 to move towards the reset convex block 20 at the top of the loading block 12, since the abutting block 21 on the deflection disc 17 will receive the reverse pressure from the reset convex block 20, at this time, the deflection disc 17 will rotate and reset under the action of the reverse pressure of the reset convex block 20. At this time, the welding torch head 18 will be vertically aligned to weld the top of the steel plate and the precast beam box rib plate. Since the secondary limiting plate 25 is no longer locked, the reset rotating deflection disc 17 can push the secondary limiting plate 25 to move backward first through the deflection block 22. At this time, the secondary limiting plate 25 will push the rotating arm 2607 to reset again. At this time, the unlocking head 2602 will protrude again. At the same time, the one-way locking head 2605 can enter the opening of the guide block 2601 again. If the deflection disc 17 is completely horizontally reset, the compression spring 28 can push the secondary limiting plate 25 to reset. At this time, the one-way locking head 2605 will, under the pressure of the reset spring 2604, re-enter the locking port on the secondary limiting plate 25; S4: When the stress rod 16 moves obliquely downward along the guide slot on the guide plate 11, the deflection disc 17 will drive the welding torch head 18 to rotate counterclockwise through the stress rod 16, so that the muzzle of the welding torch head 18 will face the oblique welding position on the other side of the steel plate. And the locking self-control mechanism 26 will operate according to the above steps, so as to realize the welding of the welding torch head 18 along the fitting position of the steel plate.

[0025] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Prefabricated beam welding device, including: A fixed frame (1), on the top of which a rod body of a lifting frame (10) and a first electric cylinder (4) are mounted; the feature is that the fixed frame (11) further comprises: a guide plate (11) is fixedly mounted on the side wall of the lower part of the lifting frame (10), a loading block (12) is slidably fitted on the side wall of the guide plate (11) and the inner wall of the lifting frame (10), and the bottom of the inner wall of the loading block (12) is fitted with two side surfaces of a deflection plate (17), and the side walls of the deflection plate (17) are respectively fixedly connected with a resistance block (21) and a deflection block (22). ), a main limiting plate (23) is fixedly connected to the middle of the inner wall of the loading block (12), a locking automatic control mechanism (26) is installed in the middle of the main limiting plate (23), and the locking automatic control mechanism (26) comprises a guide block (2601), the guide block (2601) is slidably embedded in the inner wall of the main limiting plate (23), and symmetrical vertical rods (2603) are slidably inserted on the upper and lower sides of the guide block (2601); an automatic positioning module for fixing the steel plate is fixedly installed at the moving end of the first electric cylinder (4).

2. The precast beam welding device according to claim 1, characterized in that: The side wall of the loading block (12) is fitted on the outer wall of the guide plate (11), and a force-bearing rod (16) is fitted and inserted into the bottom of a vertical groove opened on the side wall of the loading block (12); a through guide groove is opened on the side wall of the guide plate (11), and the middle part of the rod body of the force-bearing rod (16) is fitted and inserted into the through guide groove of the guide plate (11); a welding gun head (18) is fixedly connected to a convex plate at one end of the force-bearing rod (16), and the muzzle of the welding gun head (18) faces the fitting point between the steel plate and the prefabricated beam box rib plate; the other end of the force-bearing rod (16) is coaxially fixedly connected to the disk surface of the deflection disk (17), and the convex plate at the end of the force-bearing rod (16) is fitted and arranged on a side of the guide plate (11) away from the loading block (12).

3. The precast beam welding device according to claim 2, wherein: A horizontal abutment block (21) and a deflection block (22) are fixedly connected to both sides of the outer wall of the deflection disk (17), and the ends of the abutment block (21) and the deflection block (22) away from the deflection disk (17) are arranged toward the inner wall of the loading block (12), and the axes of the abutment block (21) and the deflection block (22) are coaxially arranged, and the axis of the abutment block (21) passes through the rotation center of the deflection disk (17). Two groups of horizontal limiting plates (19) and reset protrusions (20) symmetrically distributed up and down are fixedly installed on the inner wall of the loading block (12). The upper and lower ends of the deflection disk (17) are both provided with horizontal surfaces, and the horizontal surface of the lower portion of the deflection disk (17) is fitted on the corresponding horizontal limiting plate (19), the reset protrusion (20) is fixedly connected to the end side wall of the horizontal limiting plate (19), the bottom side wall of the abutment block (21) is fitted on the corresponding reset protrusion (20), and a deflection limiting column (29) is vertically fixedly connected to the edge of the disk surface of the deflection disk (17), and the deflection limiting column (29) is rotatably fitted and inserted in an arc groove provided on the inner wall of the loading block (12).

4. The precast beam welding device according to claim 1, characterized in that: Symmetric auxiliary limiting plates (25) are attached to the upper and lower sides of the main limiting plate (23). The side of the auxiliary limiting plate (25) close to the deflection disc (17) is flush with the side wall of the main limiting plate (23). The side walls of the main limiting plate (23) and the auxiliary limiting plate (25) protrude from the inner wall of the loading block (12). The side walls of the main limiting plate (23) and the auxiliary limiting plate (25) are on the moving path of the deflection block (22). A plug rod (27) is fixedly connected to the side of the auxiliary limiting plate (25) away from the deflection disc (17). A compression spring (28) is sleeved on the side wall of the plug rod (27), and the compression spring (28) is fixedly connected between the end face of the auxiliary limiting plate (25) and the outer wall of the connecting frame (24). The plug rod (27) slidably penetrates through the connecting frame (24). One end of the connecting frame (24) is fixedly connected to the outer wall of the main limiting plate (23), and the other end of the connecting frame (24) is fixedly connected to the side wall of the loading block (12).

5. The precast beam welding device according to claim 1, characterized in that: A horizontal unlocking head (2602) is fixedly connected to the end face of the guiding block (2601). The unlocking head (2602) slidably penetrates through the inner wall of the main limiting plate (23), and the end of the unlocking head (2602) away from the guiding block (2601) protrudes from the side wall of the main limiting plate (23). A one-way locking head (2605) is fixedly connected to the end of the vertical rod (2603) away from the guiding block (2601). The cross section of the one-way locking head (2605) is in the shape of a right trapezoid. The one-way locking head (2605) slidably penetrates through the outer wall of the main limiting plate (23). The end of the one-way locking head (2605) is fitted and inserted into the corresponding locking opening on the outer wall of the auxiliary limiting plate (25). A return spring (2604) is sleeved on the outer side of the rod body of the vertical rod (2603), and the return spring (2604) is fixedly connected between the outer wall of the guiding block (2601) and the end of the vertical rod (2603).

6. The precast beam welding device according to claim 5, characterized in that: On the side of the guiding block (2601) away from the unlocking head (2602), there are two groups of symmetrically distributed thrust rods (2606) and rotating arms (2607). The two ends of the thrust rod (2606) are fixedly connected to the inner wall of the guiding block (2601). The thrust rod (2606) is fitted and inserted into the through chute opened at the end of the rotating arm (2607). The convex shaft on the upper part of the rotating arm (2607) is rotatably embedded in the inner wall of the connecting frame (24). A pressure head (2608) is fixedly installed at the end of the rotating arm (2607), and the pressure head (2608) faces the inner wall of the auxiliary limiting plate (25).

7. Method for using a precast beam welding device, using the precast beam welding device according to any one of claims 1-6, characterized in that, Comprising the following steps: S1: The electric screw rod (3) on the workbench (2) can drive the welding structure and the positioning module on the fixed frame (1) to move horizontally. The transmission screw rod (13) drives the force-bearing rod (16) slidably installed through the loading block (12) to slide along the guide groove on the guide plate (11). S2: When the stress rod (16) moves obliquely upward along the guide groove on the guide plate (11), the stress rod (16) drives the deflection block (22) on the deflection disk (17) to press against the secondary limiting plate (25) in the locked state. The deflection disk (17) will drive the welding torch head (18) to rotate clockwise through the stress rod (16), and the muzzle of the welding torch head (18) will face the oblique welding position of the steel plate to perform oblique welding. After the deflection block (22) passes through the locking self-control mechanism (26), the secondary limiting plate (25) will no longer be in the locked state; S3: When the stress rod (16) drives the deflection disk (17) to move towards the reset bump (20) on the top of the loading block (12), the deflection disk (17) will rotate and reset under the reverse pressure of the reset bump (20). At this time, the welding torch head (18) will be vertically aligned to weld the top of the steel plate and the rib plate of the precast beam box; S4: When the stress rod (16) moves obliquely downward along the guide groove on the guide plate (11), the deflection disk (17) will drive the welding torch head (18) to rotate counterclockwise through the stress rod (16), so that the muzzle of the welding torch head (18) will face the oblique welding position on the other side of the steel plate, thereby realizing the welding of the welding torch head (18) along the fitting position of the steel plate.

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