Pipeline welding method

Abstract

The invention discloses a pipeline welding method. In the prior art, a welding head cannot accurately weld a gap, a heating surface pipeline of a power station boiler is complex, and welding and clamping are very inconvenient in the installation and maintenance process of the heating surface pipeline of the boiler. The method comprises the following steps that a boiler is placed in a fixed clamp, a hydraulic push rod can push forwards to push a stress block on a movable clamp, so that one end of the movable clamp rotates around the fixed clamp, an opening is slowly closed, and the boiler is firmly clamped on a base; a motor in a first sliding block is started to drive a gear at the output end to rotate, the gear drives the first sliding block to move forwards through a rack on a sliding rod, a fixed rod at the bottom of the first sliding block can also drive a movable rod to move forwards, and therefore a blade wheel rotates on the surface of the boiler and can roll along an opening gap in the boiler. The method is used for pipeline welding.

Description

Technical Field

[0001] The invention relates to a pipeline welding method. Background Art

[0002] With the continuous development and progress of all walks of life in the society, people's living standards are constantly improving, and the demand for electricity is gradually increasing. As an important equipment in the production of power enterprises, thermal power plant boilers play a vital role in the safe operation of steam turbines and generators. The quality control of boiler heating surface pipeline welding directly affects the safe and stable operation of thermal power units. Therefore, it is particularly important to do a good job in the quality control of thermal power plant boiler heating surface pipeline welding.

[0003] The welding technology is becoming more and more mature, and the methods are becoming more and more diversified. However, direct manual welding causes great harm to the body and eyes, and defects in the welding process are uncontrollable. Most of the existing welding equipment has a low degree of automation, and the welding head cannot accurately weld the gap. In addition, the design of the heating surface pipeline of the power station boiler is complex, and it is very inconvenient to weld and clamp the boiler heating surface pipeline during installation and maintenance. Therefore, a welding device that is easy to adjust for installation and maintenance of boiler heating surface pipes is proposed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a pipeline welding method, the structure of which is intended to solve the problem of improving pipeline welding quality.

[0005] The above purpose is achieved through the following technical solutions: A pipeline welding method, the method comprising the following steps: (1) Place the boiler in the fixed clamp. The hydraulic push rod will push forward, pushing the force block on the movable clamp, so that one end of the movable clamp rotates around the fixed clamp, slowly closing the opening and firmly clamping the boiler on the base; (2) The motor inside the slider starts, driving the gear at the output end to rotate. The gear drives the slider forward through the rack on the slide rod. The fixed rod at the bottom of the slider also drives the movable rod forward, causing the blade wheel to rotate on the surface of the boiler. The blade wheel will roll along the opening gap on the boiler. (3) Through fine adjustments made by the telescopic rod and spring on the clamping block, the welding gun head clamped on the clamping block will also operate along the working path of the blade wheel, and then directly provide electricity through the generator and wires inside the slider one. At the same time, the slider one will drive the slide rod group to move along the slider two and slider three, thereby providing power for the same welding structure underneath, completing the simultaneous welding of the inside and outside of the boiler.

[0006] The pipeline welding method described in the present invention comprises a motor installed inside the slider one, the output end of the motor is connected to a gear, the bottom of the slider one is slidably connected to a sliding rod, the outer wall of the sliding rod is provided with a rack, and both ends of the sliding rod are fixedly connected to a supporting column, one side of the outer wall of the slider one is fixedly connected to a sliding rod group, one side of the top of the sliding rod group is slidably connected to a sliding rod two, and one side of the bottom of the sliding rod group is provided with a sliding rod three, the bottom of the slider one is fixedly connected to a fixing rod, the bottom of the fixing rod is rotatably connected to a movable rod, the bottom of the movable rod is rotatably connected to a blade wheel, a clamping block is fixedly connected between the movable rods, one side of the clamping block is fixedly connected to an electric welding gun head, and the other side of the clamping block is fixedly connected to a telescopic rod, a spring is provided at the bottom of the slider one, the bottom of the support column is fixedly connected to a base, and the top of the base is fixedly connected to a fixing clamp.

[0007] In the pipeline welding method, the bottom of the gear is meshed with the rack, and one side of the slider is fixedly connected to the support column; One side of the slider three is fixedly connected to the support column, and the slider three is arranged at the bottom of the slider two.

[0008] In the pipeline welding method, a wire is arranged on the top of the welding gun head, and the spring is arranged on the outer side wall of the telescopic rod; A generator is arranged at the other end of the electric wire, and the generator is fixedly connected inside the slider.

[0009] In the pipeline welding method, the electric wire is electrically connected to the generator, and the electric wire passes through the bottom wall of the slider 1 and extends to the interior of the slider 1; The top of the fixed clamp is rotatably connected with a movable clamp, and the outer side wall of the movable clamp is fixedly connected with a force-bearing block.

[0010] In the pipeline welding method, the outer side wall of the fixing clamp is fixedly connected with a hydraulic push rod, and the output end of the hydraulic push rod is connected to the force-bearing block. Beneficial Effects

[0011] 1. The present invention is a pipeline welding method. The structure first achieves the effect of precise positioning of the welding gun head through the mutual cooperation of a sliding rod, a slider, a rack, a generator, a gear, a blade wheel, a fixing clamp and a spring, solves the problem of inaccurate welding and improves work efficiency.

[0012] 2. The present invention achieves the effect of clamping the boiler through the mutual cooperation of the base, the fixed clamp, the movable clamp, the hydraulic push rod and the force-bearing block, solves the problem of inconvenient clamping, and improves the clamping efficiency of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the main structure of the present invention; Attached Figure 2 It is a schematic diagram of the structure of the slider of the present invention; Attached Figure 3 It is a schematic diagram of the blade wheel structure of the present invention; Attached Figure 4 It is a schematic diagram of the fixing clamp structure of the present invention.

[0014] Among them: 1. Slider 1; 2. Sliding rod; 3. Rack; 4. Sliding rod group; 5. Slider 2; 6. Hydraulic push rod; 7. Movable clamp; 8. Slider 3; 9. Support column; 10. Fixed clamp; 11. Base; 12. Motor; 13. Generator; 14. Wire; 15. Gear; 16. Force block; 17. Blade wheel; 18. Clamping block; 19. Welding gun head; 20. Movable rod; 21. Fixed rod; 22. Telescopic rod; 23. Spring. DETAILED DESCRIPTION

[0015] See attached Figure 1-4 , a pipeline welding method, the method comprising the following steps: (1) Place the boiler in the fixed clamp. The hydraulic push rod will push forward, pushing the force block on the movable clamp, so that one end of the movable clamp rotates around the fixed clamp, slowly closing the opening and firmly clamping the boiler on the base; (2) The motor inside the slider starts, driving the gear at the output end to rotate. The gear drives the slider forward through the rack on the slide rod. The fixed rod at the bottom of the slider also drives the movable rod forward, causing the blade wheel to rotate on the surface of the boiler. The blade wheel will roll along the opening gap on the boiler. (3) Through fine adjustments made by the telescopic rod and spring on the clamping block, the welding gun head clamped on the clamping block will also operate along the working path of the blade wheel 17, and then directly provide electricity through the generator and wires inside the slider 1. At the same time, the slider 1 will drive the slide rod group to move along the sliders 2 and 3, thereby providing power for the same welding structure underneath, completing the simultaneous welding of the inside and outside of the boiler.

[0016] A pipeline welding method includes a slider 1, wherein a motor 12 is arranged inside the slider 1 to provide power for the sliding of the slider 1, a gear 15 is arranged at the output end of the motor 12, and the gear 15 is driven to rotate by the motor 12, a slider 2 is slidably connected to the bottom of the slider 1, and a rack 3 is arranged on the outer wall of the slider 2, so that the gear 15 rotates on the rack 3, thereby driving the sliding of the slider 1, thereby promoting the movement of a blade wheel 17, and supporting columns 9 are fixedly connected to both ends of the slider 2 to support the entire structure, a slider group 4 is fixedly connected to one side of the outer wall of the slider 1, and is used to connect two identical structures above and below for simultaneous movement to ensure simultaneous welding of the inner and outer sides of the boiler, a slider 2 5 is slidably connected to one side of the top of the slider group 4, and a slider 3 8 is arranged on one side of the bottom of the slider group 4 to ensure the support and movement trajectory of the slider group 4 A fixed rod 21 is fixedly connected to the bottom of the slider 1, and a movable rod 20 is rotatably connected to the bottom of the fixed rod 21 to ensure the flexibility of the blade wheel 17. The blade wheel 17 is rotatably connected to the bottom of the movable rod 20, and can move in the gap to be welded in the boiler to adjust the welding position. A clamping block 18 is fixedly connected between the movable rods 20 to connect the blade wheel 17 and the welding gun head 19. The welding gun head 19 is fixedly connected to one side of the clamping block 18 so that the welding gun head 19 works along the movement trajectory of the blade wheel 17. A telescopic rod 22 is fixedly connected to the other side of the clamping block 18. A spring 23 is provided at the bottom of the slider 1 to ensure the activity space of the blade wheel 17. The bottom of the support column 9 is fixedly connected to the base 11, and the top of the base 11 is fixedly connected to the fixing clamp 10, so that the clamping device and the welding device form a whole.

[0017] The bottom of the gear 15 is meshed with the rack 3 to provide power for the slider 1 to move on the slide bar 2. One side of the slider 2 5 is fixedly connected to the support column 9. One side of the slider 3 8 is fixedly connected to the support column 9 to ensure the fixed track of the slider group 4. The slider 3 8 is arranged at the bottom of the slider 2 5. The top of the welding gun head 19 is provided with a wire 14 for connecting the generator 13 and the welding gun head 19. The spring 23 is arranged on the outer side wall of the telescopic rod 22. The other end of the wire 14 is provided with a generator 13 to provide power for the welding gun head 19. The generator 13 is fixedly connected to the slider 1 The wire 14 is electrically connected to the generator 13, which effectively avoids the wire 14 from interfering with the operation of the equipment. The wire 14 runs through the bottom wall of the slider 1 and extends to the inside of the slider 1. The top of the fixed clamp 10 is rotatably connected to the movable clamp 7. The outer side wall of the movable clamp 7 is fixedly connected to a force block 16 for bearing the force of the hydraulic push rod 6. The outer side wall of the fixed clamp 10 is fixedly connected to the hydraulic push rod 6. The output end of the hydraulic push rod 6 is connected to the force block 16 to provide power to the movable clamp 7. The opening and closing of the movable clamp 7 are realized through the extension and retraction of the hydraulic push rod 6, thereby realizing the fixation of the boiler.

Claims

1. A pipeline welding method, characterized in that: The method comprises the following steps: (1) Place the boiler in the fixed clamp. The hydraulic push rod will push forward, pushing the force block on the movable clamp, so that one end of the movable clamp rotates around the fixed clamp, slowly closing the opening and firmly clamping the boiler on the base; (2) The motor inside the slider starts, driving the gear at the output end to rotate. The gear drives the slider forward through the rack on the slide rod. The fixed rod at the bottom of the slider also drives the movable rod forward, causing the blade wheel to rotate on the surface of the boiler. The blade wheel will roll along the opening gap on the boiler. (3) Through fine adjustments made by the telescopic rod and spring on the clamping block, the welding gun head clamped on the clamping block will also operate along the working path of the blade wheel, and then directly provide electricity through the generator and wires inside the slider one. At the same time, the slider one will drive the slide rod group to move along the slider two and slider three, thereby providing power for the same welding structure underneath, completing the simultaneous welding of the inside and outside of the boiler.

2. A pipeline welding method according to claim 1, characterized in that: The motor is installed inside the slider one, and the output end of the motor is connected to a gear, and the bottom of the slider one is slidably connected to a sliding rod, and a rack is provided on the outer wall of the sliding rod, and two ends of the sliding rod are fixedly connected to support columns, one side of the outer wall of the slider one is fixedly connected to a sliding rod group, one side of the top of the sliding rod group is slidably connected to a slider two, and one side of the bottom of the sliding rod group is provided with a slider three, the bottom of the slider one is fixedly connected to a fixing rod, the bottom of the fixing rod is rotatably connected to a movable rod, and the bottom of the movable rod is rotatably connected to a blade wheel, a clamping block is fixedly connected between the movable rods, one side of the clamping block is fixedly connected to a welding gun head, and the other side of the clamping block is fixedly connected to a telescopic rod, a spring is provided at the bottom of the slider one, the bottom of the support column is fixedly connected to a base, and the top of the base is fixedly connected to a fixing clamp.

3. A pipeline welding method according to claim 2, characterized in that: The bottom of the gear is meshed with the rack, and one side of the slider is fixedly connected to the support column; One side of the slider three is fixedly connected to the support column, and the slider three is arranged at the bottom of the slider two.

4. A pipeline welding method according to claim 3, characterized in that: The top of the welding gun head is provided with an electric wire, and the spring is provided on the outer side wall of the telescopic rod; A generator is arranged at the other end of the electric wire, and the generator is fixedly connected inside the slider.

5. A pipeline welding method according to claim 4, characterized in that: The electric wire is electrically connected to the generator, and the electric wire passes through the bottom wall of the slider 1 and extends to the interior of the slider 1; The top of the fixed clamp is rotatably connected with a movable clamp, and the outer side wall of the movable clamp is fixedly connected with a force-bearing block.

6. A pipeline welding method according to claim 5, characterized in that: The outer side wall of the fixing clamp is fixedly connected with a hydraulic push rod, and the output end of the hydraulic push rod is connected with the force bearing block.

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