A welding rolling platform for a cofferdam of a construction of a tidal zone pile cap and a use method thereof

Abstract

The application discloses a kind of welding rolling platform for construction cofferdam of tidal zone pile cap and its using method, it is related to welding technical field, including base, be equipped with a restriction groove on base, a screw rod is rotatably connected in restriction groove, the lateral wall of screw rod is connected with the internal thread of guide block, the bottom of guide block is slidably connected with the inside of restriction groove, the lateral wall of base is fixedly connected with servo motor, the output shaft of servo motor is fixedly connected with one end of screw rod, by polishing layer to the polishing of steel casing connection, it can effectively polish steel casing connection before welding, remove oxidation layer, impurities such as oil stain, improve welding quality;The rotation of gear ring drives polishing layer to polish connection uniformly and continuously, ensure the consistency and stability of polishing effect.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding rolling platform for cofferdam construction in tidal zone piers and its usage method. Background Technology

[0002] Patent CN218051148U discloses a truss device for center-welded large steel casing, including a roller support mechanism, guide rails, and a gantry frame. The steel casing is supported and placed on the roller support mechanism, and the guide rails are arranged parallel to the axis of the steel casing on both sides of the roller support mechanism. The bottom of the gantry frame located above the steel casing is slidably mounted on the guide rails on both sides. The gantry frame includes a ladder and an operating platform, and the ladder is vertically arranged on both sides of the gantry frame.

[0003] In the aforementioned prior art, each splicing unit of the steel casing is placed sequentially on the support wheels of the roller support mechanism, the gantry is moved to the weld position, and locked and fixed by the rail clamping mechanism; the workers climb the ladder to the operating platform, use the roller support mechanism to drive the steel casing to rotate slowly, and weld while rotating, but the connection of the steel casing is not pre-treated, resulting in impurities, oxide layer or unevenness at the weld, thus affecting the welding quality. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a welding rolling platform for cofferdam construction in tidal zone and its usage method.

[0005] This invention is implemented as follows: a welding rolling platform for cofferdam construction in tidal zone piers is constructed. The platform includes a base with a limiting groove. A lead screw is rotatably connected within the limiting groove. The side wall of the lead screw is threadedly connected to a 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 lead screw. A drive wheel is fixedly connected to the top of the base. A limiting frame is fixedly connected to the top of the guide block. A drive motor is fixedly connected to the outer peripheral wall of the limiting frame. The output shaft of the drive motor is fixedly connected to a pinion gear, which meshes with a gear ring. The gear ring is rotatably connected to the inner side wall of the limiting frame. The gear ring is hollow inside. A telescopic membrane is fixedly connected to the inner side wall of the gear ring, forming a sealed cavity around the hollow area inside the gear ring. 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 two sets of steel casings or to grind the surface of the steel casings by rotating back and forth while the steel casings move left and right.

[0006] In one feasible implementation, four sets of drive wheels 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. Contact assemblies are respectively provided at the left and right ends of the base.

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

[0008] In one feasible implementation, an air pump is fixedly connected to the side wall of the gear ring, the air outlet 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 one feasible implementation, a plurality of first electric push rods are arranged in a ring shape on the left end of the inner sidewall of the limiting frame, and a plurality of second electric push rods are arranged in a ring shape on the right end of the inner sidewall of the limiting frame.

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

[0011] In one 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 side wall of the inner frame.

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

[0013] S1: When connecting the two sets of steel casings, the two sets of steel casings are placed on the contact components at the left and right ends of the base by external machinery; the air pump is controlled to run, and the air pump draws external air into the cavity, causing the expansion membrane in the cavity to expand outward. The connection point of the two sets of steel casings is pre-moved to contact the expansion membrane. The servo motor applies power to drive the pinion gear to drive the gear ring and the expansion membrane and the grinding layer to rotate, so that the connection point between the grinding layer and the steel casing is ground. After the grinding is completed, the solenoid valve is opened, and the air in the cavity is discharged outward through the solenoid valve. The expansion membrane contracts away from the connection point of the steel casing, and the contact component drives the steel casing to move, so that the connection point of the two sets of steel casings is connected.

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

[0015] S3: After welding is completed, the servo motor drives the lead screw to rotate. The lead screw drives the limit frame to move through the guide block. The limit frame drives the measuring rod on the detection component to be located next to the weld of the steel casing. The third electric push rod is controlled to push the inner frame to make the measuring rod contact the weld. The gear ring drives the measuring rod to rotate around the weld of the steel casing. When the measuring rod is squeezed by the protrusion at the weld, 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, control the expansion membrane to continue to expand, and drive the steel casing to move on the X-axis so that the surface of the steel casing contacts the polished layer on the expansion membrane.

[0017] The present invention has the following advantages: The present invention provides an improved welding rolling platform for cofferdam construction in tidal zones and its usage method, which, compared with similar equipment, has the following improvements:

[0018] The present invention discloses a welding rolling platform for cofferdam construction in tidal zone and its usage method. By grinding the steel casing connection with the grinding layer, the connection of the steel casing can be effectively ground before welding, removing impurities such as oxide layer and oil stains, and improving welding quality. The rotation of the gear ring drives the grinding layer to grind the connection evenly and continuously, ensuring the consistency and stability of the grinding effect.

[0019] The present invention discloses a welding rolling platform for cofferdam construction in tidal zone and its usage method. Through the precise control of the first and second electric push rods, the position of the steel casing can be finely adjusted to ensure that the connection of the two sets of steel casings can be precisely aligned. The automated operation of the robotic arm and welding gun reduces manual intervention and improves welding efficiency.

[0020] The present invention discloses a welding rolling platform for cofferdam construction in tidal zone and its usage method. After welding, the weld is detected in real time using a measuring rod and a sliding rheostat on the detection component. When the measuring rod is squeezed by the protrusion at the weld, it moves through a compression spring and a slider, changing the resistance value of the sliding rheostat. The change in current value is then displayed by an ammeter, thereby achieving a quantitative assessment of the welding quality.

[0021] The present invention discloses a welding rolling platform for cofferdam construction in tidal zone and its usage method. After the steel casing is welded, the telescopic membrane continues to expand, so that the grinding layer comes into contact with the surface of the steel casing. The steel casing is moved on the X-axis by the drive wheel, and at the same time the drive motor drives the telescopic membrane and the grinding layer to rotate back and forth, so as to achieve comprehensive grinding of the surface of the steel casing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

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

[0026] Figure 5 This is the invention Figure 4 Sectional view at point AA;

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

[0028] The components include: base-1, limiting groove-2, lead screw-3, guide block-4, servo motor-5, drive wheel-6, limiting frame-7, drive motor-8, pinion-9, gear ring-10, cavity-11, telescopic membrane-12, air pump-13, solenoid valve-131, detection component-14, robotic 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, and measuring rod-146. Detailed Implementation

[0029] The following will be combined with the appendix Figures 1-6 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly explained. The described embodiments are obviously only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0030] Please see Figures 1 to 6This invention discloses a welding rolling platform for cofferdam construction in tidal zone foundations and its usage method, comprising a base 1, on which a controller is mounted. The controller is electrically connected to a servo motor 5, a drive wheel 6, a drive motor 8, an air pump 13, an electromagnetic valve 131, a robotic 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 provided on the base 1, and a lead screw 3 is rotatably connected within the limiting groove 2. The side wall of the lead screw 3 is internally threaded to a guide block 4, and the 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 the output shaft of the servo motor 5 is fixedly connected to one end of the lead screw 3. In the construction of cofferdams for tidal zone foundations, the steel casing plays a crucial role. The steel casing serves as a positioning device during foundation construction, ensuring the accurate positioning of construction equipment such as bored piles and caissons.

[0031] Specifically, a drive wheel 6 is fixedly connected to the top of the base 1. The drive wheel 6 is composed of a drive seat, a motor and a drive wheel. The motor is fixed on the drive seat, the drive seat is rotatably connected to the drive wheel, and the motor is fixedly connected to the center of the drive wheel. Four sets of drive 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. The limiting frame 7 is ring-shaped. A drive motor 8 is fixedly connected to the outer peripheral wall of the limiting frame 7. The output shaft of the drive motor 8 is fixedly connected to a pinion 9. The pinion 9 meshes with a gear ring 10. The meshing area between the pinion 9 and the gear ring 10 on the side wall of the limiting frame 7 is hollowed out, so that the pinion 9 can pass through the side wall of the limiting frame 7 and mesh with the gear ring 10. The gear ring 10 is rotatably connected to the inner side wall of the limiting frame 7, so that the gear ring 10 can rotate within the limiting frame 7.

[0033] Specifically, the toothed ring 10 has a hollow interior, and a telescopic membrane 12 is fixedly connected to the inner wall of the toothed ring 10. The telescopic membrane 12 encloses the hollow interior of the toothed ring 10 into a sealed cavity 11. The outer wall of the telescopic membrane 12 is provided with a polishing layer for polishing the surface of the steel casing sidewall or the connection between two sets of steel casings. The telescopic membrane 12 is specifically a rubber film; the polishing layer is specifically a polymer composite material (such as polyurethane or epoxy resin containing hard particles). The polishing layer is uniformly coated on the outer wall of the telescopic membrane 12 and cured after coating to ensure that the polishing layer is firmly attached to the telescopic membrane 12. After the two sets of steel casings are welded together, the telescopic membrane 12 is controlled to continue to expand and contact the sidewall of the steel casing, and then the drive wheel 6 is activated. The steel casing is moved along the X-axis, bringing its surface into contact with the polished layer on the telescopic membrane 12. The drive motor 8 drives the telescopic membrane 12 and the polished layer to rotate back and forth. The polished layer polishes the surface of the steel casing as it moves left and right and rotates back and forth. The welded steel casing is then lifted and installed in the tidal zone pier construction cofferdam area by a crane (such as a crawler crane or a truck crane). A vibratory hammer is used to sink the steel casing into the soil. 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 vibratory hammer should be adjusted in time or the sinking should be stopped. The casing should be straightened before continuing construction. The sinking should be stopped when the steel casing reaches the designed depth.

[0034] Specifically, an air pump 13 is fixedly connected to the side wall of the gear ring 10. The air outlet of the air pump 13 is connected to the cavity 11. The air pump 13 is used to inflate the cavity 11, causing the expansion membrane 12 to expand outward. An electromagnetic valve 131 is fixedly connected to the side wall of the gear ring 10 to release the gas in the cavity 11, causing the expansion membrane 12 to shrink. This is suitable for grinding before butt welding of steel casings of different diameters. The other end of the electromagnetic valve 131 is connected to the cavity 11. A detection component 14 is fixedly connected to the side wall of the gear ring 10. A robotic arm 15 is fixedly connected to the side wall of the gear ring 10 to adjust the position of the welding gun 16 for easy welding of the steel casings. A welding gun 16 for welding the joint of the steel casings is fixedly connected to the robotic arm 15. When butt welding two sets of steel casings, the two sets of steel casings are placed on the contact components at the left and right ends of the base 1 by external machinery. The air pump 13 is controlled to operate, and the air pump 13 draws external air. Air enters the cavity 11, causing the expansion membrane 12 inside the cavity 11 to expand outward. The connection point of the two sets of steel casings is pre-moved to contact the expansion membrane 12. Then, the servo motor 5 is controlled to run, and the servo motor 5 applies power to drive the pinion 9 to rotate. The pinion 9 drives the gear ring 10 to rotate, and the gear ring 10 drives the expansion membrane 12 and the polishing layer to rotate, so that the connection point of the polishing layer and the steel casing is polished. After polishing, the solenoid valve 131 is controlled to open, and the air in the cavity 11 is discharged outward through the solenoid valve 131. The expansion membrane 12 contracts away from the connection point of the steel casing, and the contact component drives the steel casing to move, so that the connection point of the two sets of steel casings is aligned. The robotic arm 15 is controlled to drive the welding gun 16 to weld the connection point of the steel casing. At the same time, the servo motor 5 is turned on to drive the gear ring 10 to rotate through the pinion 9. The gear ring 10 drives the robotic arm 15 to drive the welding gun 16 to rotate and weld the connection point of the steel casing.

[0035] Specifically, multiple sets of first electric push rods 17 are arranged in a ring on the left end of the inner sidewall of the limiting frame 7, and multiple sets of second electric push rods 18 are arranged in a ring on the right end of the inner sidewall of the limiting frame 7. The first electric push rods 17 and the second electric push rods 18 are used to squeeze and position the steel casing. After the connection of the two sets of steel casings is aligned, 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 push the steel casing to make fine adjustments so that the connection of the two sets 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 inside the inner frame 142. The slider 144 on the sliding rheostat 143 is fixedly connected to one end of the 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 and extends outward. The measuring rod 146 is made of insulating material, which can be plastic. A ball bearing is movably connected to the side wall of the other end of the measuring rod 146 away from the sliding rheostat 143. The ball bearing is used to contact the welded connection of the steel casing. One end of the measuring rod 146 is fixedly connected to 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 via a cable; after welding, the servo motor 5 is controlled to drive the lead screw 3 to rotate, the lead screw 3 drives the limiting frame 7 to move through the guide block 4, the limiting frame 7 drives the measuring rod 146 on the detection component 14 to be located next to the weld of the steel casing, the third electric push rod 141 is controlled to push the inner frame 142 to drive the measuring rod 146 to contact the weld, the gear ring 10 drives the measuring rod 146 to rotate around the weld of the steel casing, when the measuring rod 146 contacts the protruding or recessed area of ​​the weld, 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 description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding rolling platform for cofferdam construction in tidal zone, comprising a base, a limiting groove on the base, a lead screw rotatably connected in the limiting groove, the side wall of the lead screw being threadedly connected to a guide block, the bottom of the guide block being slidably connected to the limiting groove, a servo motor being fixedly connected to the side wall of the base, and the output shaft of the servo motor being fixedly connected to one end of the lead screw. Its features are: A drive wheel is fixedly connected to the top of the base; A limiting frame is fixedly connected to the top of the guide block. A drive motor is fixedly connected to the outer peripheral wall of the limiting frame. The output shaft of the drive motor is fixedly connected to a pinion gear. The pinion gear meshes with a gear ring. The gear ring is rotatably connected to the inner side wall of the limiting frame. The toothed ring is hollow inside, and a telescopic membrane is fixedly connected to the inner side wall of the toothed ring. The telescopic membrane surrounds the hollow part of the toothed ring into a sealed cavity. A polishing layer is provided on the outer side 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 to polish the surface of the steel casings by rotating back and forth while the steel casings move left and right. A robotic arm is fixedly connected to the side wall of the gear ring, and a welding gun for welding the joint of the steel casing is fixedly connected to the robotic arm. An air pump is fixedly connected to the side wall of the gear ring, and the air outlet 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. The detection assembly includes a third electric push rod, the bottom of which is fixedly connected to the side wall of the gear ring, and the telescopic end of which is fixedly connected to the inner frame. A sliding rheostat is fixedly connected inside the inner frame. 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.

2. The welding rolling platform for cofferdam construction in tidal zone as described in claim 1, characterized in that: Four sets of drive wheels 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. Contact assemblies are respectively provided at the left and right ends of the base.

3. The welding rolling platform for cofferdam construction in tidal zone as described in claim 2, characterized in that: Multiple sets of first electric push rods are arranged in a ring on the left end of the inner sidewall of the limiting frame, and multiple sets of second electric push rods are arranged in a ring on the right end of the inner sidewall of the limiting frame.

4. A method for using a welding rolling platform for cofferdam construction in tidal zone pier caps, employing the welding rolling platform for cofferdam construction in tidal zone pier caps as described in claim 3, characterized in that: Includes the following steps: S1: When connecting the two sets of steel casings, the two sets of steel casings are placed on the contact components at the left and right ends of the base by external machinery; the air pump is controlled to run, and the air pump draws external air into the cavity, causing the expansion membrane in the cavity to expand outward. The connection point of the two sets of steel casings is pre-moved to contact the expansion membrane. The servo motor applies power to drive the pinion gear to drive the gear ring and the expansion membrane and the grinding layer to rotate, so that the connection point between the grinding layer and the steel casing is ground. After the grinding is completed, the solenoid valve is opened, and the air in the cavity is discharged outward through the solenoid valve. The expansion membrane contracts away from the connection point of the steel casing, and the contact component drives the steel casing to move, so that the connection point of the two sets of steel casings is connected. S2: Control the robotic arm to drive the welding gun to weld the connection between the welding gun and the steel casing. The servo motor drives the gear ring to rotate through the pinion gear. The gear ring drives the robotic arm to rotate the welding gun and weld the connection between the steel casing. S3: After welding is completed, the servo motor drives the lead screw to rotate. The lead screw drives the limit frame to move through the guide block. The limit frame drives the measuring rod on the detection component to be located next to the weld of the steel casing. The third electric push rod is controlled to push the inner frame to make the measuring rod contact the weld. The gear ring drives the measuring rod to rotate around the weld of the steel casing. When the measuring rod is squeezed by the protrusion at the weld, 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, control the expansion membrane to continue to expand, and drive the steel casing to move on the X-axis so that the surface of the steel casing contacts the polished layer on the expansion membrane.

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