Welding rolling platform for tidal zone bearing platform construction cofferdam and using method of welding rolling platform

Abstract

The invention discloses a welding rolling platform for a tidal zone bearing platform construction cofferdam and a using method of the welding rolling platform, and relates to the technical field of welding. The welding rolling platform comprises a base, a limiting groove is formed in the base, a lead screw is rotationally connected in the limiting groove, the side wall of the lead screw is in internal threaded connection with a guide block, and the bottom of the guide block is in sliding connection with the interior of the limiting groove; the side wall of the base is fixedly connected with a servo motor, an output shaft of the servo motor is fixedly connected with one end of a lead screw, the connecting position of the steel casing is polished through the polishing layer, the connecting position of the steel casing can be effectively polished before welding, impurities such as an oxide layer and oil dirt can be removed, and the welding quality is improved; the gear ring rotates to drive the grinding layer to evenly and continuously grind the connecting position, and the consistency and stability of the grinding effect are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding rolling platform for cofferdam construction in a tidal zone and a use method thereof. Background Art

[0002] The patent with publication (announcement) number CN218051148U discloses a truss device for central welding of large steel casings, including a roller support mechanism, a guide rail and a gantry. The steel casing support is placed on the roller support mechanism, and the guide rails are arranged on both sides of the roller support mechanism in parallel along the axis direction of the steel casing; the bottom of the gantry arranged above the steel casing is slidably installed on the guide rails on both sides; the gantry includes a ladder and an operating platform, and the ladder is vertically arranged on both sides of the gantry.

[0003] In the above-mentioned prior art, each splicing unit of the steel casing is placed on the support wheels of the roller support mechanism in sequence, the gantry is moved to the welding position, and is locked and fixed by the rail clamping mechanism; the workers climb up the ladder to the operating platform, use the roller support mechanism to drive the steel casing to rotate slowly, and weld while rotating, and fail to pre-treat the joints of the steel casing, resulting in impurities, oxide layers or unevenness in the weld, thereby affecting the welding quality. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a welding rolling platform for cofferdam construction in tidal areas and a method for using the same.

[0005] The present invention is achieved in that a welding rolling platform for cofferdam construction in a tidal area is constructed, the platform comprises a base, a limiting groove is provided on the base, a wire rod is rotatably connected in the limiting groove, the side wall of the wire rod is connected with the inner thread of a guide block, the bottom of the guide block is slidably connected in the limiting groove, a servo motor is fixedly connected to the side wall of the base, and the output shaft of the servo motor is fixedly connected to one end of the wire rod; a driving wheel is fixedly connected to the top of the base; a limiting frame is fixedly connected to the top of the guide block, a driving motor is fixedly connected to the outer peripheral wall of the limiting frame, the output shaft of the driving motor is fixedly connected to a pinion, the pinion is meshed with a gear ring, and the gear ring is rotatably connected to the inner side wall of the limiting frame; the inside of the gear ring is hollow, a telescopic membrane is fixedly connected to the inner side wall of the gear ring, the telescopic membrane surrounds the hollow part in the gear ring into a closed cavity, a grinding layer is provided on the outer side wall of the telescopic membrane, the grinding layer is used to grind the surface of the connection between the two groups of steel casings or the grinding layer rotates back and forth while the steel casing moves left and right to grind the surface of the steel casing.

[0006] In a feasible implementation, four groups of driving wheels form a contact assembly, which is used to contact the steel casing and drive the steel casing to slide and adjust its position in the X-axis direction of the base. Contact assemblies are respectively provided at the left and right ends of the base.

[0007] In a feasible implementation manner, a mechanical arm is fixedly connected to the side wall of the gear ring, and a welding gun for welding the connection of the steel casing is fixedly connected to the mechanical arm.

[0008] In a feasible embodiment, an air pump is fixedly connected to the side wall of the gear ring, the air outlet end of the air pump is connected to the cavity, an electromagnetic valve is fixedly connected to the side wall of the gear ring, the other end of the electromagnetic valve is connected to the cavity, and a detection component is fixedly connected to the side wall of the gear ring.

[0009] In a feasible implementation manner, a plurality of first electric push rods are provided in a ring shape at the left end of the inner side wall of the limiting frame, and a plurality of second electric push rods are provided in a ring shape at the right end of the inner side wall of the limiting frame.

[0010] In a feasible implementation, the detection component includes a third electric push rod, the bottom of the third electric push rod is fixedly connected to the side wall of the gear ring, the telescopic end of the third electric push rod is fixedly connected to the inner frame, and a sliding rheostat is fixedly connected inside the inner frame.

[0011] In a feasible implementation, the slider on the sliding rheostat is fixedly connected to one end of the measuring rod, the measuring rod is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the inner wall of the inner frame.

[0012] A method for using a welding rolling platform for cofferdam construction in a tidal area comprises the following steps:

[0013] S1: When two sets of steel casings are docked, the two sets of steel casings are placed on the contact components at the left and right ends of the base through an external machine; the air pump is controlled to operate, and the air pump draws external air into the cavity, so that the telescopic membrane in the cavity expands outward, and the connection between the two sets of steel casings is pre-moved to contact with the telescopic membrane, and the servo motor applies power to drive the pinion drive gear ring and the telescopic membrane and the polishing layer to rotate, so that the connection between the polishing layer and the steel casing is polished. After the polishing is completed, the electromagnetic valve is controlled to open, and the air in the cavity is discharged outward through the electromagnetic valve, and the telescopic membrane shrinks away from the connection of the steel casing. The contact component drives the steel casing to move, so that the connection between the two sets of steel casings is docked;

[0014] S2: Control the robot arm to drive the welding gun and the connection between the steel casing to weld. The servo motor drives the gear ring to rotate through the pinion. The gear ring drives the robot arm to drive the welding gun to rotate and weld the connection between the steel casing.

[0015] S3: After welding is completed, the servo motor is controlled to drive the lead screw to rotate, and the lead screw drives the limit frame to move through the guide block. The limit frame drives the measuring rod on the detection assembly to be located next to the welding part of the steel casing. The third electric push rod is controlled to push the inner frame to drive the measuring rod to contact the welding part, and the gear ring drives the measuring rod to rotate around the welding part of the steel casing. When the measuring rod is squeezed by the protrusion of the welding part, the measuring rod moves inward to compress the spring and push the slider to move, so that the resistance value on the sliding rheostat changes;

[0016] S4: After the two sets of steel casings are welded together, the telescopic membrane is controlled to continue to expand, and the driving wheel drives the steel casing to move on the X-axis, so that the surface of the steel casing contacts the polished layer on the telescopic membrane.

[0017] The present invention has the following advantages: The present invention provides a welding rolling platform for cofferdam construction in tidal areas and a method for using the same, which has the following improvements compared with similar equipment:

[0018] The welding rolling platform for cofferdam construction in tidal areas and the use method thereof described in the present invention can grind the steel casing connection by the grinding layer, so as to effectively grind the steel casing connection before welding, remove impurities such as oxide layer and oil stains, and improve welding quality; the rotation of the gear ring drives the grinding layer to grind the connection evenly and continuously, so as to ensure the consistency and stability of the grinding effect.

[0019] The welding rolling platform for cofferdam construction in a tidal area and the use method thereof described in the present invention can fine-tune the position of the steel casing through precise control of the first electric push rod and the second electric push rod to ensure that the connection between the two groups of steel casings can be accurately aligned; the automated operation of the robotic arm and the welding gun reduces manual intervention and improves welding efficiency.

[0020] The present invention discloses a welding rolling platform for cofferdam construction in a tidal area and a method for using the same. After welding is completed, the welding position is detected in real time by using a measuring rod and a sliding rheostat on a detection assembly. When the measuring rod is squeezed by a protrusion at the welding position, the measuring rod changes the resistance of the sliding rheostat by moving a compression spring and a slider, thereby displaying the change in current value through an ammeter, thereby achieving quantitative evaluation of the welding quality.

[0021] The present invention discloses a welding rolling platform for cofferdam construction in a tidal area and a method for using the same. After the welding of the steel casing is completed, the telescopic membrane continues to expand, so that the polishing layer contacts the surface of the steel casing, and the steel casing is driven to move on the X-axis by a driving wheel. At the same time, a driving motor drives the telescopic membrane and the polishing layer to rotate back and forth, thereby achieving comprehensive polishing of the surface of the steel casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0024] Figure 3 The structure of the present invention is schematically shown in FIG. Figure 3 ;

[0025] Figure 4 It is a schematic diagram of the limiting frame structure of the present invention;

[0026] Figure 5 The present invention Figure 4 Sectional view at AA in the figure;

[0027] Figure 6 It is a schematic diagram of the structure of the detection component of the present invention.

[0028] Among them: base-1, limiting groove-2, screw rod-3, guide block-4, servo motor-5, driving wheel-6, limiting frame-7, driving motor-8, pinion-9, gear ring-10, cavity-11, telescopic membrane-12, air pump-13, electromagnetic valve-131, detection component-14, mechanical arm-15, welding gun-16, first electric push rod-17, second electric push rod-18, third electric push rod-141, inner frame-142, sliding rheostat-143, slider-144, spring-145, measuring rod-146. DETAILED DESCRIPTION

[0029] The following will be combined with the attached Figure 1-Figure 6 The present invention is described in detail, and the technical solutions in the embodiments of the present invention are made clear. The complete description is obvious. The described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0030] See also Figures 1 to 6A welding rolling platform for cofferdam construction in a tidal area and a method for using the same comprise a base 1, a controller is disposed on the base 1, the controller is electrically connected to a servo motor 5, a driving wheel 6, a driving motor 8, an air pump 13, an electromagnetic valve 131, a mechanical arm 15, a welding gun 16, a first electric push rod 17, a second electric push rod 18, a third electric push rod 141 and a sliding rheostat 143, a limiting groove 2 is disposed on the base 1, a wire rod 3 is rotatably connected in the limiting groove 2, a side wall of the wire rod 3 is connected to an internal thread of a guide block 4, a bottom of the guide block 4 is slidably connected to the limiting groove 2, a servo motor 5 is fixedly connected to the side wall of the base 1, and an output shaft of the servo motor 5 is fixedly connected to one end of the wire rod 3; in the cofferdam construction of the tidal area, the steel casing plays a vital role, and the steel casing is used as a positioning device in the construction of the tidal area to ensure the accurate positioning of construction equipment such as bored piles and caissons.

[0031] Specifically, a driving wheel 6 is fixedly connected to the top of the base 1. The driving wheel 6 is specifically composed of a driving seat, a motor and a driving wheel. The motor is fixed on the driving seat. The driving seat is rotatably connected to the driving wheel. The motor is fixedly connected to the center of the driving wheel. Four groups of driving wheels 6 form a contact assembly. The contact assembly is used to contact the steel casing and drive the steel casing to slide and adjust its position in the X-axis direction of the base 1. Contact assemblies are respectively provided at the left and right ends of the base 1.

[0032] Specifically, a limiting frame 7 is fixedly connected to the top of the guide block 4, and the limiting frame 7 is in a ring shape. A driving motor 8 is fixedly connected to the outer peripheral wall of the limiting frame 7. The output shaft of the driving motor 8 is fixedly connected to a pinion 9, and the pinion 9 is meshed with a ring gear 10. On the side wall of the limiting frame 7, the meshing area of ​​the pinion 9 and the ring gear 10 is hollowed out, so that the pinion 9 can pass through the side wall of the limiting frame 7 to mesh with the ring gear 10, and the ring gear 10 is rotatably connected to the inner wall of the limiting frame 7; it is convenient for the ring gear 10 to rotate in the limiting frame 7.

[0033] Specifically, the gear ring 10 is hollowed out, and a telescopic membrane 12 is fixedly connected to the inner wall of the gear ring 10. The telescopic membrane 12 surrounds the hollowed-out part of the gear ring 10 into a closed cavity 11, and a polishing layer is provided on the outer wall of the telescopic membrane 12 for polishing the surface of the side wall of the steel casing or the connection between two groups of steel casings; the telescopic membrane 12 is specifically a rubber film; the polishing layer is specifically a polymer composite material (such as polyurethane containing hard particles, epoxy resin, etc.), and the polishing layer is evenly coated on the outer wall of the telescopic membrane 12, and is cured after coating to ensure that the polishing layer is firmly attached to the telescopic membrane 12; after the two groups of steel casings are welded together, the telescopic membrane 12 is controlled to continue to expand and contact the side wall of the steel casing, and then the driving wheel 6 The steel casing is driven to move on the X-axis so that the surface of the steel casing contacts the polishing layer on the telescopic membrane 12. The driving motor 8 drives the telescopic membrane 12 and the polishing layer to rotate back and forth. The polishing layer rotates back and forth while the steel casing moves left and right to polish the surface of the steel casing. The steel casing after welding is lifted and installed to the cofferdam area of ​​the tidal platform construction by a crane (such as a crawler crane or a truck crane). The steel casing is sunk into the soil with a vibrating hammer. During the sinking process, the sinking speed and verticality of the steel casing are closely observed. If the steel casing is found to be tilted, the position of the vibrating hammer should be adjusted in time or the sinking should be stopped. After straightening, the construction should be continued. When the steel casing reaches the designed depth of soil, the sinking should be stopped.

[0034] Specifically, an air pump 13 is fixedly connected to the side wall of the gear ring 10, and the air outlet end of the air pump 13 is communicated with the cavity 11. The air pump 13 is used to inflate the cavity 11 to expand the telescopic membrane 12 outward. An electromagnetic valve 131 is fixedly connected to the side wall of the gear ring 10 to deflate the gas in the cavity 11 to shrink the telescopic membrane 12. It is suitable for the grinding treatment before butt welding of steel casings of different diameters. The other end of the electromagnetic valve 131 is communicated with the cavity 11. A detection component 14 is fixedly connected to the side wall of the gear ring 10. A mechanical arm 15 is fixedly connected to the side wall of the gear ring 10 to adjust the position of a welding gun 16 to facilitate welding of the steel casing. A welding gun 16 for welding the connection of the steel casing is fixedly connected to the mechanical arm 15. When two groups of steel casings are butt-jointed, the two groups of steel casings are respectively placed on the contact components at the left and right ends of the base 1 through an external machine. The operation of the air pump 13 is controlled, and the air pump 13 extracts the external The air enters the cavity 11, causing the telescopic membrane 12 in the cavity 11 to expand outward, and the connection between the two groups of steel casings is pre-moved to contact the telescopic membrane 12, and then the servo motor 5 is controlled to run, and the servo motor 5 applies power to drive the pinion 9 to rotate, and the pinion 9 drives the ring gear 10 to rotate, and the ring gear 10 drives the telescopic membrane 12 and the polishing layer to rotate, so that the connection between the polishing layer and the steel casing is polished. After the polishing is completed, the electromagnetic valve 131 is controlled to open, and the air in the cavity 11 is discharged outward through the electromagnetic valve 131, and the telescopic membrane 12 shrinks away from the connection of the steel casing. The contact assembly drives the steel casing to move, so that the connection between the two groups of steel casings is docked, and the mechanical arm 15 is controlled to drive the welding gun 16 to weld with the connection of the steel casing. At the same time, the servo motor 5 is turned on to drive the ring gear 10 to rotate through the pinion 9, and the ring gear 10 drives the mechanical arm 15 to drive the welding gun 16 to rotate, and weld the connection of the steel casing.

[0035] Specifically, a plurality of first electric push rods 17 are arranged in a ring shape at the left end of the inner wall of the limiting frame 7, and a plurality of second electric push rods 18 are arranged in a ring shape at the right end of the inner wall of the limiting frame 7; the first electric push rods 17 and the second electric push rods 18 are used to squeeze and contact the steel casing and position and dock the steel casing; after docking at the connection of the two groups of steel casings, the telescopic ends of the first electric push rods 17 and the second electric push rods 18 at the left and right ends of the limiting frame 7 are controlled to contact the surface of the steel casing, and the steel casing is pushed for fine adjustment, so that the connection of the two groups of steel casings is aligned; a rubber layer is fixedly connected to the top of the telescopic ends of the first electric push rods 17 and the second electric push rods 18.

[0036] Specifically, the detection component 14 includes a third electric push rod 141, the bottom of the third electric push rod 141 is fixedly connected to the side wall of the gear ring 10, the telescopic end of the third electric push rod 141 is fixedly connected to the inner frame 142, a sliding rheostat 143 is fixedly connected in the inner frame 142, a slider 144 on the sliding rheostat 143 is fixedly connected to one end of a measuring rod 146, the measuring rod 146 is slidably connected to the side wall of the inner frame 142, the other end of the measuring rod 146 away from the sliding rheostat 143 slides through the side wall of the inner frame 142 to extend outward, the measuring rod 146 is made of insulating material, which can be plastic material, the other end of the measuring rod 146 away from the sliding rheostat 143 is movably connected to the side wall with a ball, the ball is used to contact the welding connection of the steel casing, the measuring rod 146 is fixedly connected to one end of a spring 145, the spring 145 The other end is fixedly connected to the inner wall of the inner frame 142; the sliding rheostat 143 is connected to the ammeter through a cable; after welding is completed, the servo motor 5 is controlled to drive the screw rod 3 to rotate, and the screw rod 3 drives the limiting frame 7 to move through the guide block 4, and the limiting frame 7 drives the measuring rod 146 on the detection component 14 to be located next to the welding position of the steel casing, and the third electric push rod 141 is controlled to push the inner frame 142 to drive the measuring rod 146 to contact the welding position, and the gear ring 10 drives the measuring rod 146 to rotate around the welding position of the steel casing. When the measuring rod 146 contacts the raised or recessed area of ​​the welding position, the measuring rod 146 moves inward to compress the spring 145 and push the slider 144 to move, or the spring 145 pushes the measuring rod 146 to move outward, so that the resistance value on the sliding rheostat 143 changes, and the current value displayed on the ammeter is recorded on the controller.

[0037] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0038] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding rolling platform for cofferdam construction in a tidal area, comprising a base, a limiting groove is provided on the base, a wire rod is rotatably connected in the limiting groove, the side wall of the wire rod is connected to the inner thread of the guide block, the bottom of the guide block is slidably connected to the limiting groove, a servo motor is fixedly connected to the side wall of the base, and the output shaft of the servo motor is fixedly connected to one end of the wire rod; Features: A driving wheel is fixedly connected to the top of the base; A limiting frame is fixedly connected to the top of the guide block, a driving motor is fixedly connected to the outer peripheral wall of the limiting frame, an output shaft of the driving motor is fixedly connected to a pinion, the pinion is meshed with a gear ring, and the gear ring is rotatably connected to the inner side wall of the limiting frame; The inside of the gear ring is hollow, and a telescopic membrane is fixedly connected to the inner wall of the gear ring. The telescopic membrane surrounds the hollow part of the gear ring to form a closed cavity. A polishing layer is provided on the outer wall of the telescopic membrane. The polishing layer is used to polish the surface of the connection between the two sets of steel casings or the polishing layer rotates back and forth to polish the surface of the steel casing while the steel casing moves left and right.

2. According to claim 1, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: Four sets of driving wheels form a contact assembly, which is used to contact the steel casing and drive the steel casing to slide and adjust its position in the X-axis direction of the base. Contact assemblies are respectively arranged at the left and right ends of the base.

3. According to claim 2, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: A mechanical arm is fixedly connected to the side wall of the gear ring, and a welding gun used for welding the connection of the steel casing is fixedly connected to the mechanical arm.

4. According to claim 3, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: An air pump is fixedly connected to the side wall of the gear ring, and the air outlet end of the air pump is connected to the cavity. An electromagnetic valve is fixedly connected to the side wall of the gear ring, and the other end of the electromagnetic valve is connected to the cavity. A detection component is fixedly connected to the side wall of the gear ring.

5. According to claim 4, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: The left end of the inner side wall of the limiting frame is provided with a plurality of first electric push rods in a ring shape, and the right end of the inner side wall of the limiting frame is provided with a plurality of second electric push rods in a ring shape.

6. According to claim 5, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: The detection component comprises a third electric push rod, the bottom of the third electric push rod is fixedly connected to the side wall of the gear ring, the telescopic end of the third electric push rod is fixedly connected to the inner frame, and a sliding rheostat is fixedly connected inside the inner frame.

7. According to claim 6, a welding rolling platform for cofferdam construction in tidal areas, characterized in that: The slider on the sliding rheostat is fixedly connected to one end of the measuring rod, the measuring rod is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the inner side wall of the inner frame.

8. A method for using a welding rolling platform for cofferdam construction in a tidal area, using the welding rolling platform for cofferdam construction in a tidal area according to claim 7, characterized in that: The following steps are involved: S1: When two sets of steel casings are docked, the two sets of steel casings are placed on the contact components at the left and right ends of the base through an external machine; the air pump is controlled to operate, and the air pump draws external air into the cavity, so that the telescopic membrane in the cavity expands outward, and the connection between the two sets of steel casings is pre-moved to contact with the telescopic membrane, and the servo motor applies power to drive the pinion drive gear ring and the telescopic membrane and the polishing layer to rotate, so that the connection between the polishing layer and the steel casing is polished. After the polishing is completed, the electromagnetic valve is controlled to open, and the air in the cavity is discharged outward through the electromagnetic valve, and the telescopic membrane shrinks away from the connection of the steel casing. The contact component drives the steel casing to move, so that the connection between the two sets of steel casings is docked; S2: Control the robot arm to drive the welding gun and the connection between the steel casing to weld. The servo motor drives the gear ring to rotate through the pinion. The gear ring drives the robot arm to drive the welding gun to rotate and weld the connection between the steel casing. S3: After welding is completed, the servo motor is controlled to drive the lead screw to rotate, and the lead screw drives the limit frame to move through the guide block. The limit frame drives the measuring rod on the detection assembly to be located next to the welding part of the steel casing. The third electric push rod is controlled to push the inner frame to drive the measuring rod to contact the welding part, and the gear ring drives the measuring rod to rotate around the welding part of the steel casing. When the measuring rod is squeezed by the protrusion of the welding part, the measuring rod moves inward to compress the spring and push the slider to move, so that the resistance value on the sliding rheostat changes; S4: After the two sets of steel casings are welded together, the telescopic membrane is controlled to continue to expand, and the driving wheel drives the steel casing to move on the X-axis, so that the surface of the steel casing contacts the polished layer on the telescopic membrane.

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