High-altitude pipe bus automatic welding equipment for transformer substation

Abstract

The invention relates to automatic welding equipment for a high-altitude pipe bus for a transformer substation. The equipment comprises a square shell with an opening in the bottom end, the square shell is divided into a first half shell and a second half shell along a first diagonal line, and tubular bus through holes are formed in the opposite surfaces of the first half shell and the second half shell. The position adjusting mechanism is composed of a hoisting plate, a first sliding rail and an adjusting assembly, and the first half shell and the second half shell can be driven to move in the second diagonal direction and adjust the angle through the telescopic action of a hydraulic rod. The tubular bus positioning mechanism is installed in the two half shells, and stable positioning of the side wall of the tubular bus is achieved through cooperation of a fixed arc plate, a movable arc plate and a second driving hydraulic rod. The annular cutting mechanism comprises an annular guide rail, a machine frame, a servo motor and other components, and the butt-joint ends of the tubular bus bars can be accurately and neatly cut. The welding mechanism is located in the first half shell and used for conducting automatic welding operation on the butt joint position of the two tubular buses. Through cooperation of all the mechanisms, the technical problems that a traditional tubular bus installation technology is low in efficiency and high in cost are solved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and more particularly to an automatic welding device for high-altitude tube busbars used in transformer substations. Background Art

[0002] In existing technology, a tubular busbar is a type of busbar with a tubular structure. Its hollow tubular design reduces weight while maintaining sufficient strength, making it easier to install and transport. Furthermore, the busbar has excellent heat dissipation properties, helping to reduce the impact of heat generated by current on the system. Therefore, the busbar is widely used in high-voltage, high-capacity power systems, such as large substations and hydropower stations.

[0003] During the traditional busbar laying process, multiple sections of busbars need to be welded on the ground first, and then they are installed on the insulators of the pillars using lifting equipment such as cranes. During the lifting process, since the length of the multiple busbar sections increases exponentially after welding, a multi-point lifting method is used during the lifting process to avoid bending and deformation of the busbar. In addition, to prevent deformation of the welds of the busbar during the lifting process, a busbar liner is required to support the internal welds to improve the connection strength of the welds.

[0004] The traditional installation process of tubular busbars has the following disadvantages: first, the overall length of the tubular busbar is restricted by the multi-section welding on the ground. During the layout of long-distance tubular busbars, manual high-altitude welding is still required; second, the multi-section welding method changes the lifting method to multi-point lifting, which increases the lifting difficulty and increases the installation cost; third, the multi-point lifting method increases the lifting height of the crane, further increasing the lifting difficulty.

[0005] Therefore, how to provide a new high-altitude busbar automatic welding equipment for substations that can automatically trim the butt joints of two pipe ends at high altitudes while also automatically docking and welding the trimmed ends is a problem that technicians in this field urgently need to solve. Summary of the Invention

[0006] In view of this, the present invention provides an automatic welding device for high-altitude busbars for substations, aiming to solve the technical problems of the above-mentioned traditional busbar installation process, such as the restricted length of the busbar and the high lifting and labor costs.

[0007] An automatic welding device for high-altitude busbars used in transformer substations is used to weld the joints of two high-altitude busbars, comprising:

[0008] A square shell, the bottom end of which is open, is divided into a first half shell and a second half shell along a plane in a first diagonal direction thereof, and tube mother through-holes are provided on opposite surfaces thereof;

[0009] The position adjustment mechanism includes a lifting plate, a slide rail 1, an adjustment component 1 and an adjustment component 2. The lifting plate is located above the square shell, the slide rail 1 is arranged along the second diagonal direction of the square shell and is fixedly connected to the lower plate surface of the lifting plate, the adjustment component 1 includes a slider 1, a driving hydraulic rod 1 and an adjusting hydraulic rod 1. The top of the slider 1 is slidably connected to the slide rail 1, and the bottom end thereof is rotatably connected to the top end of the first half shell. The fixed end of the driving hydraulic rod 1 is hinged to the lower plate surface of the lifting plate, and its telescopic end is hinged to the slider 1 to drive the slider 1 to drive the first half shell to move along the second diagonal direction toward or away from the second half shell. The fixed end of the adjusting hydraulic rod 1 is hinged to the lower plate surface of the lifting plate, and its telescopic end is hinged to the top end of the first half shell to adjust the angle of the first half shell. The adjustment component 2 has the same mechanism as the adjustment component 1 and is arranged corresponding to the second half shell.

[0010] The two tube mother positioning mechanisms are respectively installed in the first and second half shells corresponding to the two tube mother through-holes, and include multiple annular grippers to hold the cylindrical surface of the tube mother tightly;

[0011] Circular cutting mechanism, two circular cutting mechanisms are respectively installed inside the first half shell and the second half shell, and cut the butt joints of the two tube mothers to be flush;

[0012] The welding mechanism is installed inside the first half shell. The ends of the two cut tube mothers are aligned under the adjustment of the adjustment component one and the adjustment component two. At the same time, the first half shell and the second half shell are merged and locked, and the ends of the two tube mothers are welded by the welding mechanism.

[0013] Through the above technical solution, the present invention divides the square shell into a first half shell and a second half shell. The first half shell and the second half shell can move independently under the action of the position adjustment mechanism and are respectively aligned with the two tube mothers that need to be docked, and the cylindrical surface of the tube mother is tightly held by the tube mother positioning mechanism installed therein, and then the docking parts of the two tube mothers are respectively trimmed to be flush by the annular cutting mechanism possessed by both the first half shell and the second half shell, and then the trimmed ports of the two tube mothers are docked by the position adjustment mechanism. At the same time, the first half shell and the second half shell are merged and locked, and the ends of the two tube mothers are welded by the welding mechanism. The present invention has the characteristics of trimming the docking ports of the two tube mothers, automatically aligning and welding after trimming.

[0014] Preferably, the pipe mother positioning mechanism includes a fixed arc plate and a movable arc plate constituting a gripper and a driving hydraulic rod 2, the concave surface of the fixed arc plate is arranged downward, the convex surface of the fixed arc plate is fixedly connected to the inner top surface of the first half shell, the two movable arc plates are symmetrically arranged on both sides of the fixed arc plate, the top ends of the two movable arc plates are respectively hinged to the two ends of the fixed arc plate along its circumference, the number of the driving hydraulic rods 2 is two, the fixed ends of the two driving hydraulic rods 2 are both hinged to the inner top surface of the first half shell, and the telescopic ends thereof are respectively hinged to the convex surfaces of the first half shell and the second half shell, the two driving hydraulic rods 2 telescope and drive the two movable arc plates to approach or move away from each other at the same time to grasp or release the side wall of the pipe mother.

[0015] Preferably, the bottom ends of the two movable arc plates are spaced apart in the circumferential direction.

[0016] Preferably, the annular cutting mechanism includes an annular guide rail, a frame, a servo motor 1, a lifting assembly, a cutting disc and a servo motor 2. The annular guide rail is divided into three sections, which are respectively fastened to the convex surfaces of the fixed arc plate and the two movable arc plates. The upper surface of the annular guide rail is provided with teeth along its circumference. The annular guide rail is in a continuous state after the fixed arc plate and the two movable arc plates clamp the pipe mother. The bottom end of the frame is slidably connected to the annular guide rail, and the frame is rotatably connected to gears meshing with the teeth at both ends along the circumference of the annular guide rail. The fixed end of servo motor 1 is fixedly connected to the top of the frame, and the power output end of servo motor 1 is transmission connected to the two gears. The lifting assembly is installed on the side wall of the frame, and the lifting direction of the lifting assembly is arranged along the radial direction of the pipe mother. The axis of the cutting disc is arranged parallel to the axial direction of the pipe mother. The cutting disc is rotatably connected to the lifting end of the lifting assembly, and the fixed end of servo motor 2 is fixedly connected to the lifting end of the lifting assembly, and its power output end is transmission connected to the cutting disc.

[0017] Preferably, the distance between the two gears is greater than the interval between the bottom ends of the two movable arc plates in the circumferential direction.

[0018] Preferably, the cutting disc is coaxially arranged on one side of the frame and fixedly connected with a trapezoidal frustum-shaped chamfered portion, and the circumferential surface of the chamfered portion is evenly provided with knife grooves for processing the welding groove.

[0019] Preferably, a fixing mechanism is further included, which includes a fixing block and three driving hydraulic rods. There are two fixing blocks, which are symmetrically arranged on both sides of the pipe mother and are both hinged to the side wall surface of the first half shell. There are two driving hydraulic rods three, and their fixed ends are both hinged to the side wall surface of the first half shell, and their telescopic ends are respectively hinged to the two fixing blocks. There are two fixing mechanisms, which are respectively arranged corresponding to the pipe mother through-holes corresponding to the first half shell and the second half shell.

[0020] Preferably, a positioning groove and a positioning protrusion that cooperates with the positioning groove are respectively formed on the opposite surfaces of the first half shell and the second half shell.

[0021] Preferably, a hydraulic pump is further included, and the hydraulic pumps are connected to the driving hydraulic rod 1, the adjusting hydraulic rod 1, the driving hydraulic rod 2 and the driving hydraulic rod 3 through pipelines.

[0022] Preferably, a controller is further included, and the controller is electrically connected to the control module of the hydraulic pump, the servo motor 1 and the servo motor 2.

[0023] Through the above technical solutions, it can be seen that compared with the prior art, the present invention provides an automatic welding device for high-altitude busbars for transformer substations, which has the following beneficial effects: by providing a square shell that can be divided into two half shells, and equipped with a position adjustment mechanism, a tube mother positioning mechanism, a ring cutting mechanism and a welding mechanism, efficient and accurate welding of the joints of two tube mothers in the air is achieved. The position adjustment mechanism can drive the two half shells to move and adjust the angles respectively, so as to facilitate alignment with the tube mother to be welded; the tube mother positioning mechanism can firmly hold the tube mother to ensure stability during the welding process; the ring cutting mechanism can cut the joints of the tube mother to be flush respectively to ensure cutting accuracy; the welding mechanism performs welding after the half shells are combined, avoiding the splashing of welding slag during the welding process, improving the welding quality and efficiency, and solving the problem of high efficiency and low cost of the traditional tube mother welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of an automatic welding device for high-altitude busbars for substations provided by the present invention (the first half shell and the second half shell are in a separated state);

[0025] Figure 2 A schematic perspective view of an automatic welding device for high-altitude busbars for substations provided by the present invention (the first half shell and the second half shell are in a separated state) from another perspective;

[0026] Figure 3 An exploded schematic diagram of the position adjustment mechanism provided by the present invention and the first half shell and the second half shell in assembly;

[0027] Figure 4 for Figure 3 A partial enlarged view of point C;

[0028] Figure 5 A three-dimensional schematic diagram of an automatic welding device for high-altitude busbars for substations provided by the present invention (the first half shell and the second half shell are in a closed state);

[0029] Figure 6 for Figure 5 A partial enlarged view of point A;

[0030] Figure 7A schematic perspective view of an automatic welding device for high-altitude busbars for substations provided by the present invention (the first half shell and the second half shell are in a closed state) from another perspective;

[0031] Figure 8 A three-dimensional schematic diagram of the first half shell and the tube mother positioning mechanism, the ring cutting mechanism and the welding mechanism provided by the present invention in assembly;

[0032] Figure 9 A three-dimensional schematic diagram of the second half shell, the tube mother positioning mechanism and the ring cutting mechanism provided by the present invention in assembly;

[0033] Figure 10 for Figure 8 A partial enlarged view of point B;

[0034] Figure 11 A partial cross-sectional view of the ring cutting mechanism provided by the present invention;

[0035] Figure 12 A partial cross-sectional view of the ring cutting mechanism and the welding mechanism provided by the present invention in assembly;

[0036] Figure 13 A three-dimensional schematic diagram of the circular cutting mechanism and the welding mechanism provided by the present invention in an assembled state (the cutting disc moves downward to cut, and the wire feed tube and welding gun deflect to avoid);

[0037] Figure 14 A three-dimensional schematic diagram of the circular cutting mechanism and the welding mechanism provided by the present invention in the assembled state (the cutting disc moves upward to avoid, and the wire feed tube and the working end of the welding gun are close to each other for welding);

[0038] Figure 15 A three-dimensional schematic diagram of the tube mother positioning mechanism provided by the present invention;

[0039] Figure 16 A three-dimensional schematic diagram of the tube mother positioning mechanism (open state) provided by the present invention;

[0040] Figure 17 A three-dimensional schematic diagram of the cutting disc and the rotating shaft provided by the present invention in assembly;

[0041] Figure 18 A three-dimensional schematic diagram of the guide shaft provided by the present invention;

[0042] Figure 19 The present invention is a perspective schematic diagram of a frame and a guide block in assembly.

[0043] in:

[0044] 1-square shell; 10-tube mother hole; 11-first half shell; 12-second half shell; 111-positioning groove; 121-positioning protrusion;

[0045] 21 - Lifting plate; 22 - Slide rail 1; 24 - Lifting block; 25 - Rotating plate; 26 - Articulated frame; 231 - Slider 1; 232 - Driving hydraulic rod 1; 233 - Adjusting hydraulic rod 1;

[0046] 3-tube mother positioning mechanism; 31-fixed arc plate; 32-movable arc plate; 33-driving hydraulic rod 2; 34-mounting block; 321-connecting bent plate;

[0047] 4 - Annular cutting mechanism; 41 - Annular guide rail; 42 - Frame; 43 - Servo motor 1; 44 - Lifting assembly; 45 - Cutting disc; 46 - Servo motor 2; 47 - Gear; 401 - Guide block 1; 402 - Rotating block; 403 - Rotating shaft; 404 - Telescopic hydraulic rod; 405 - Motor mounting block; 411 - Fixed annular guide rail; 412 - Movable annular guide rail; 421 - Frame bottom plate; 422 - Frame vertical plate; 423 - Rotating groove; 424 - Hydraulic rod mounting plate; 441 - Slide rail 2; 442 - Slider 2; 451 - Chamfering portion;

[0048] 51-wire feed tube; 52-welding gun; 53-swing mechanism; 54-swing plate; 55-guide shaft; 541-guide groove; 551-guide column; 552-guide block 2;

[0049] 6-fixing mechanism; 61-fixing block; 62-driving hydraulic rod three;

[0050] 7-locking mechanism; 71-support block; 72-locking block; 73-locking hydraulic rod; 74-hydraulic rod mounting block. DETAILED DESCRIPTION

[0051] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0052] See also Figure 1-Figure 4 and Figure 8 The embodiment of the present invention discloses an automatic welding device for high-altitude busbars used in substations, which is used to weld the joints of two busbars located at high altitudes. The device comprises: a square shell 1, a position adjustment mechanism, a busbar positioning mechanism 3, a ring cutting mechanism 4, and a welding mechanism.

[0053] The bottom end of the square shell 1 is open, and the square shell 1 is divided into a first half shell 11 and a second half shell 12 along a plane in a first diagonal direction thereof, and a tube mother through-hole 10 penetrating through the bottom end is provided on opposite surfaces thereof;

[0054] The position adjustment mechanism includes a hanging plate 21, a slide rail 22, an adjustment component 1 and an adjustment component 2. The hanging plate 21 is located above the square shell 1. The slide rail 22 is arranged along the second diagonal direction of the square shell 1 and is fixedly connected to the lower plate surface of the hanging plate 21. The adjustment component 1 includes a slider 231, a driving hydraulic rod 232 and an adjusting hydraulic rod 233. The top of the slider 231 is slidably connected to the slide rail 22, and the bottom end is rotatably connected to the top of the first half shell 11. The driving hydraulic rod 232 is connected to the top of the first half shell 11. The fixed end of the adjusting hydraulic rod 233 is hinged to the lower surface of the lifting plate 21, and the telescopic end thereof is hinged to the slider 1 231 to drive the slider 1 231 to move the first half shell 11 along the second diagonal direction toward or away from the second half shell 12. The fixed end of the adjusting hydraulic rod 1 233 is hinged to the lower surface of the lifting plate 21, and the telescopic end thereof is hinged to the top end of the first half shell 11 to adjust the angle of the first half shell 11. The mechanism of the adjusting assembly 2 is the same as that of the adjusting assembly 1 and is arranged corresponding to the second half shell 12.

[0055] Two tube mother positioning mechanisms 3 are respectively installed inside the first half shell 11 and the second half shell 12 corresponding to the two tube mother through holes 10, and include multiple sections of annular grippers to hold the cylindrical surface of the tube mother tightly;

[0056] Two ring cutting mechanisms 4 are respectively installed inside the first half shell 11 and the second half shell 12 to cut the butt joints of the two tube mothers to be flush;

[0057] The welding mechanism is installed inside the first half shell 11. The ends of the two cut tube mothers are aligned under the adjustment of the adjustment component 1 and the adjustment component 2. At the same time, the first half shell 11 and the second half shell 12 are merged and locked, and the ends of the two tube mothers are welded by the welding mechanism.

[0058] Specifically, it further includes four lifting blocks 24 , which are evenly distributed on the upper surface of the lifting plate 21 and fixedly connected to the upper surface of the lifting plate 21 .

[0059] More specifically, the adjustment component 1 also includes a rotating disk 25 and an articulated frame 26. The lower disk surface of the rotating disk 25 is rotatably connected to the top of the first half shell 11, the upper disk surface of the rotating disk 25 is fixedly connected to the bottom end of the slider 231, one end of the articulated frame 26 is fixedly connected to the side wall surface of the slider 231, and the other end of the articulated frame 26 is hinged to the telescopic end of the driving hydraulic rod 232.

[0060] More specifically, the material of the tubular busbar mainly includes copper, aluminum, and aluminum alloy, etc. The material of the tubular busbar described in this embodiment is aluminum.

[0061] More specifically, the welding method is argon arc welding.

[0062] See also Figure 5 and Figure 6When the cam 72 is in the closed position, the latch 7 is in the closed position, and the latch 7 is in the open position, so that the cam 72 is in the closed position and the latch 7 is in the open position.

[0063] In some embodiments, the pipe mother positioning mechanism 3 includes a fixed arc plate 31 and a movable arc plate 32 constituting a gripper, and a driving hydraulic rod 2 33. The concave surface of the fixed arc plate 31 is arranged downward, and the convex surface of the fixed arc plate 31 is fixedly connected to the inner top surface of the first half shell 11. The two movable arc plates 32 are symmetrically arranged on both sides of the fixed arc plate 31. The top ends of the two movable arc plates 32 are respectively hinged to the two ends of the fixed arc plate 31 along its circumference. There are two driving hydraulic rods 2 33. The fixed ends of the two driving hydraulic rods 2 33 are both hinged to the inner top surface of the first half shell 11, and their telescopic ends are respectively hinged to the convex surfaces of the first half shell 11 and the second half shell 12. The two driving hydraulic rods 2 33 telescope and drive the two movable arc plates 32 to approach or move away from each other at the same time to grasp or release the side wall of the pipe mother.

[0064] In this embodiment, the bottom ends of the two movable arc plates 32 are spaced apart.

[0065] See also Figure 10-11The circular cutting mechanism 4 includes an annular guide rail 41, a frame 42, a servo motor 1 43, a lifting assembly 44, a cutting disc 45 and a servo motor 2 46. The annular guide rail 41 is divided into three sections and is respectively fastened to the convex surfaces of the fixed arc plate 31 and the two movable arc plates 32. The upper surface of the annular guide rail 41 is provided with teeth along its circumference. The annular guide rail 41 is in a continuous state after the fixed arc plate 31 and the two movable arc plates 32 hold the pipe mother tightly. The bottom end of the frame 42 is slidably connected to the annular guide rail 41. Both ends of the frame 42 along the circumference of the annular guide rail 41 are rotatably connected to the teeth. The gear 47 is meshed with the transmission, the fixed end of the servo motor 43 is fixedly connected to the top of the frame 42, the power output end of the servo motor 43 is transmission-connected to the two gears 47, the lifting component 44 is installed on the side wall of the frame 42, the lifting direction of the lifting component 44 is arranged along the radial direction of the pipe mother, the axis of the cutting disk 45 is arranged parallel to the axial direction of the pipe mother, the cutting disk 45 is rotatably connected to the lifting end of the lifting component 44, the fixed end of the servo motor 2 46 is fixedly connected to the lifting end of the lifting component 44, and its power output end is transmission-connected to the cutting disk 45.

[0066] See also Figure 19 The frame 42 includes a frame bottom plate 421, a frame vertical plate 422 and a hydraulic rod mounting plate 424. The frame bottom plate 421 is arranged in a conformal manner with the annular guide rail 41, the frame vertical plate 422 is arranged perpendicular to the frame bottom plate 421 and is fixedly connected. The hydraulic rod mounting plate 424 is arranged perpendicular to the plate surface of the frame vertical plate 422 and is fixedly connected to the top of the frame vertical plate 422. The plate surface of the hydraulic rod mounting plate 424 is arranged perpendicular to the radial direction of the pipe mother.

[0067] See also Figure 11 and Figure 19The lifting assembly 44 includes a second slide rail 441 and a second slider 442. The second slide rail 441 is arranged along the radial direction of the tube mother and is fixedly connected to a plate surface of the frame vertical plate 422 where a hydraulic rod mounting plate 424 is arranged. The second slider 442 is slidably connected to the second slide rail 441. The circular cutting mechanism 4 also includes a guide block 401, a rotating block 402, a rotating shaft 403, a telescopic hydraulic rod 404 and a motor mounting block 405. The annular guide rail 41 is fixedly connected to guide protrusions on both sides of the width direction. The two guide blocks 401 are respectively located on both sides of the annular guide rail 41 and are fixedly connected to the lower plate surface of the frame bottom plate 421. The guide block 401 is provided on the opposite surface of the annular guide rail 41 with a guide protrusion that is slidably connected to the guide protrusion. The sliding groove is connected, the rotating block 402 is fixedly connected to the slider 2 442, the rotating shaft 403 is rotatably connected to the end of the rotating block 402 away from the slider 2 442, the cutting disk 45 is coaxially arranged with the rotating shaft 403 and fixedly connected to the cylindrical surface of the rotating shaft 403, the power output end of the servo motor 2 46 is transmission-connected to the rotating shaft 403, the telescopic hydraulic rod 404 is arranged along the radial direction of the pipe mother and its fixed end is fixedly connected to the hydraulic rod mounting plate 424, the motor mounting block 405 is fixedly connected to the top of the rotating block 402, the fixed end of the servo motor 2 46 is fixedly connected to the side wall of the motor mounting block 405 away from the slider 2 442, and the telescopic end of the telescopic hydraulic rod 404 is fixedly connected to the top of the motor mounting block 405.

[0068] See also Figure 15 and Figure 16 The annular guide rail 41 includes a fixed annular guide rail 411 and a movable annular guide rail 412. The fixed annular guide rail 411 is arranged in conformity with the convex surface of the fixed arc plate 31 and is fixedly connected. The movable annular guide rail 412 is arranged in conformity with the convex surface of the movable arc plate 32 and is fixedly connected.

[0069] See also Figure 12-14 and Figure 18The welding mechanism includes a swing plate 54, a guide shaft 55, a swing mechanism 53, a welding gun 52 and a wire feeding tube 51. There are two swing plates 54 and they are symmetrically arranged on both sides of the rotating block 402. The opposite ends of the two swing plates 54 and the rotating block 402 are hinged to the rotating block 402. The guide shaft 55 includes a guide column 551 and a guide block 2 552. A rotating groove 423 is opened on the plate surface of the frame vertical plate 422. The guide column 551 is coaxially arranged with the rotating groove 423 and is rotatably connected. The swing plate 54 is opposite to the frame vertical plate 422. A long guide groove 541 is provided on the surface, and the guide block 2 552 is slidably connected to the guide groove 541 along the length direction of the guide groove 541. The swing mechanism 53 is fixedly connected to the swing plate 54 located behind the forward direction. The swing mechanism 53 is a prior art that clamps the welding gun 52 and welds a weld with a certain width by reciprocating swinging. The welding gun 52 is detachably connected to the swing end of the swing mechanism 53, and the wire feeding tube 51 is detachably connected to the swing plate 54 located in front of the forward direction to provide welding wire for the welding process of the welding gun 52.

[0070] Specifically, the welding structure further includes an automatic wire feeder, which is installed inside the first half shell 11, and an output end of the automatic wire feeder is connected to an input end of the wire feeding tube 51 through a pipeline.

[0071] More specifically, the swing mechanism 53 is also called a welding oscillator, a pendulum swing oscillator, a welding gun rocker or an arc swinger in the prior art. It is a mature prior art. Its basic principle is that the eccentric wheel is driven to rotate by a servo motor, and the swing arm is driven to swing back and forth by a connecting rod. The swing arm is connected to the welding gun so that it swings left and right during welding. Please refer to the prior art for the specific structure, which will not be elaborated here.

[0072] Specifically, the distance between the two gears 47 is greater than the interval between the bottom ends of the two movable arc plates 32. Thus, the circular cutting mechanism 4 can cross the interval between the bottom ends of the two movable arc plates 32 during movement.

[0073] See also Figure 17 The cutting disc 45 is coaxially arranged on the side facing the frame 42 and fixedly connected to a trapezoidal frustum-shaped chamfered portion 451. The chamfered portion 451 is evenly grooved on its circumference for processing the weld groove. Therefore, the cutting disc 45 is provided with a trapezoidal frustum-shaped chamfered portion 451 on the side facing the frame 42, and the grooves are provided on the sidewall. After the butt joint ends of the pipe mother are aligned, a groove can be processed on the outer edge of the chamfered portion at the butt joint ends. This improves welding efficiency, reduces production costs, and ensures the quality and consistency of the groove, further enhancing welding quality.

[0074] See also Figure 7, further comprising a fixing mechanism 6, comprising a fixing block 61 and a third driving hydraulic rod 62. Two fixing blocks 61 are symmetrically arranged on either side of the pipe mother and hinged to the sidewall of the first half-shell 11. Two third driving hydraulic rods 62 are also present, each with its fixed end hinged to the sidewall of the first half-shell 11 and its telescopic end hinged to the two fixing blocks 61. Two fixing mechanisms 6 are arranged corresponding to the pipe mother through-holes 10 corresponding to the first and second half-shells 11, 12, respectively. Thus, the addition of the fixing mechanism 6, which controls the movement of the fixing blocks 61 by driving the third hydraulic rod 62, allows for further tightening of the pipe mother prior to welding.

[0075] See also Figure 8 and Figure 9 The first half shell 11 and the second half shell 12 are provided with a positioning groove 111 and a positioning protrusion 121 that cooperates with the positioning groove 111 on the opposing surfaces thereof. Therefore, by providing the positioning groove 111 and the positioning protrusion 121 on the opposing surfaces of the first half shell 11 and the second half shell 12, when the first half shell 11 and the second half shell 12 are combined, the positioning groove 111 and the positioning protrusion 121 are mutually positioned, further improving the positioning accuracy during the combination of the first half shell 11 and the second half shell 12.

[0076] In some specific embodiments, a hydraulic pump is further included, and the hydraulic pumps are connected to the driving hydraulic rod 232, the adjusting hydraulic rod 233, the driving hydraulic rod 233, the telescopic hydraulic rod 404, the locking hydraulic rod 73 and the driving hydraulic rod 3 62 through pipelines.

[0077] In other specific embodiments, a controller is further included, and the controller is electrically connected to the control module of the hydraulic pump, the automatic wire feeder, the swing mechanism 53, the servo motor 1 43 and the servo motor 2 46.

[0078] The specific principles and usage of the automatic welding equipment for high-altitude busbars used in substations provided in this embodiment are as follows:

[0079] 1. The installation method is to first firmly install the first pipe mother, and then connect the subsequent pipe mothers in sequence through the lifting equipment;

[0080] 2. Use a hoisting device to hoist the welding equipment above the joint between the two pipe nuts. Adjust the position adjustment mechanism so that the first half shell 11 and the second half shell 12 are roughly aligned with the two pipe nuts.

[0081] 3. By controlling the second hydraulic rod 33 to retract, the two movable arc plates 32 are controlled to move away from each other simultaneously. By controlling the third hydraulic rod 62 to retract, the two fixed blocks 61 are controlled to move away from each other until they are completely out of the coverage of the pipe mother through-hole 10.

[0082] 4. Continue to lower the welding equipment using the hoisting equipment, so that the end of the pipe mother passes through the pipe mother through-hole 10 from top to bottom and enters the first half shell 11 and the second half shell 12;

[0083] 5. By controlling the extension of the second hydraulic rod 33, the two movable arc plates 32 are controlled to move away from and close to the side wall of the pipe mother to tighten it. By controlling the extension of the third hydraulic rod 62, the two fixed blocks 61 are controlled to move closer to each other to further lock the pipe mother.

[0084] 6. Control servo motor 2 46 to rotate, driving cutting disc 45. Control telescopic hydraulic rod 404 to extend, causing cutting disc 45 to move toward the center of the tube. Welding gun 52 and wire feed tube 51 deflect to avoid the cutting disc 45 until the cutting disc 45 penetrates the side wall of the tube. Control servo motor 1 43 to rotate, driving gear 47. Frame 42 moves along annular guide rail 41, driving cutting disc 45 to cut along the circumference of the tube.

[0085] 7. After cutting is completed, the telescopic hydraulic rod 404 is controlled to extend so that the cutting disc 45 continues to move toward the center of the tube mother. The servo motor 1 43 is controlled to rotate to drive the gear 47 to rotate. The frame 42 moves along the annular guide rail 41, driving the cutting disc 45 to move along the circumference of the tube mother. The chamfered portion 451 is used to process the outer edge of the tube mother end into a welding groove.

[0086] 8. After the welding ports and grooves of the two tube shells are completed, the position adjustment mechanism is adjusted to merge the first and second half shells 11 and 12. The telescopic hydraulic rod 404 is controlled to extend, causing the cutting disc 45 to move away from the center of the tube shell, and the working ends of the welding gun 52 and the wire feed tube 51 to move closer. At this time, the automatic wire feeder is activated, feeding the welding wire through the wire feed tube 51 at a steady rate to the tip of the welding gun 52. The welding gun 52 swings under the control of the swing mechanism 53, preparing for welding. The servo motor 43 is controlled to rotate, driving the gear 47, and the frame 42 moves along the annular guide rail 41. The welding gun 52 and the wire feed tube 51 work together to weld the circumferential joint of the tube shell. During the welding process, the circumferential cutting mechanism 4 located in the second half shell 12 is in motion to avoid the welding mechanism in the first half shell 11. At the same time, the controller monitors various parameters in the welding process in real time, such as welding current, voltage, wire feeding speed, etc., and adjusts and controls the automatic wire feeder, welding gun 52 and swing mechanism 53 as needed to ensure the stability of the welding process and the welding quality.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic welding device for high-altitude busbars used in substations, used to weld the joints of two busbars located at high altitudes, characterized in that: include: A square shell (1), the bottom end of the square shell (1) is open, and the square shell (1) is divided into a first half shell (11) and a second half shell (12) along a plane in a first diagonal direction thereof, and the opposite surfaces thereof are both provided with a tube mother through-hole (10); A position adjustment mechanism, the position adjustment mechanism includes a hanging plate (21), a slide rail (22), an adjustment component (1) and an adjustment component (2), the hanging plate (21) is located above the square shell (1), the slide rail (22) is arranged along the second diagonal direction of the square shell (1) and is fixedly connected to the lower plate surface of the hanging plate (21), the adjustment component (1) includes a slider (231), a driving hydraulic rod (232) and an adjustment hydraulic rod (233), the top end of the slider (231) is slidably connected to the slide rail (22), and the bottom end thereof is rotatably connected to the top end of the first half shell (11), the driving hydraulic rod (232) and the adjustment hydraulic rod (233), The fixed end of the hydraulic rod 1 (232) is hinged to the lower plate surface of the hoisting plate (21), and the telescopic end thereof is hinged to the slider 1 (231) to drive the slider 1 (231) to drive the first half shell (11) to move closer to or away from the second half shell (12) along the second diagonal direction; the fixed end of the adjusting hydraulic rod 1 (233) is hinged to the lower plate surface of the hoisting plate (21), and the telescopic end thereof is hinged to the top end of the first half shell (11) to adjust the angle of the first half shell (11); the adjusting component 2 has the same structure as the adjusting component 1 and is arranged corresponding to the second half shell (12); A tube mother positioning mechanism (3), wherein the two tube mother positioning mechanisms (3) are respectively installed inside the first half shell (11) and the second half shell (12) corresponding to the two tube mother through-holes (10), and include a plurality of annular grippers for holding the cylindrical surface of the tube mother; Circular cutting mechanisms (4), wherein the two circular cutting mechanisms (4) are respectively installed inside the first half shell (11) and the second half shell (12), and cut the butt joints of the two tube mothers to be flush; A welding mechanism is installed inside the first half shell (11), and the ends of the two cut tube mothers are aligned under the adjustment of the adjustment component 1 and the adjustment component 2. At the same time, the first half shell (11) and the second half shell (12) are merged and locked, and the ends of the two tube mothers are welded by the welding mechanism.

2. The automatic welding equipment for high-altitude busbars used in substations according to claim 1 is characterized in that: The pipe mother positioning mechanism (3) includes a fixed arc plate (31) and a movable arc plate (32) constituting the gripper, and a driving hydraulic rod (33). The concave surface of the fixed arc plate (31) is arranged downward, and the convex surface of the fixed arc plate (31) is fixedly connected to the inner top surface of the first half shell (11). The two movable arc plates (32) are symmetrically arranged on both sides of the fixed arc plate (31). The top ends of the two movable arc plates (32) are respectively hinged to the two ends of the fixed arc plate (31) along its circumferential direction. The number of the driving hydraulic rods (33) is two. The fixed ends of the two driving hydraulic rods (33) are both hinged to the inner top surface of the first half shell (11), and the telescopic ends are respectively hinged to the convex surfaces of the first half shell (11) and the second half shell (12). The two driving hydraulic rods (33) telescope and drive the two movable arc plates (32) to move closer to or away from each other at the same time, so as to grasp or release the side wall of the pipe mother.

3. The automatic welding equipment for high-altitude busbars used in substations according to claim 2 is characterized in that: The bottom ends of the two movable arc plates (32) are arranged at intervals.

4. The automatic welding equipment for high-altitude busbars used in substations according to claim 2 is characterized in that: The circular cutting mechanism (4) includes an annular guide rail (41), a frame (42), a servo motor 1 (43), a lifting assembly (44), a cutting disc (45) and a servo motor 2 (46). The annular guide rail (41) is divided into three sections and is respectively fastened to the convex surfaces of the fixed arc plate (31) and the two movable arc plates (32). The upper surface of the annular guide rail (41) is provided with teeth along its circumference. The annular guide rail (41) is in a continuous state after the fixed arc plate (31) and the two movable arc plates (32) are tightly clamped to the pipe mother. The bottom end of the frame (42) is slidably connected to the annular guide rail (41). Both ends of the frame (42) along the circumference of the annular guide rail (41) are rotatably connected to the The gear (47) is driven by tooth meshing, the fixed end of the servo motor (43) is fixedly connected to the top of the frame (42), the power output end of the servo motor (43) is transmission-connected to both of the gears (47), the lifting assembly (44) is mounted on the side wall of the frame (42), the lifting direction of the lifting assembly (44) is arranged along the radial direction of the pipe mother, the axis of the cutting disc (45) is arranged parallel to the axial direction of the pipe mother, the cutting disc (45) is rotationally connected to the lifting end of the lifting assembly (44), the fixed end of the servo motor (46) is fixedly connected to the lifting end of the lifting assembly (44), and its power output end is transmission-connected to the cutting disc (45).

5. The automatic welding equipment for high-altitude busbars used in transformer substations according to claim 4 is characterized in that: The distance between the two gears (47) is greater than the interval between the bottom ends of the two movable arc plates (32).

6. The automatic welding equipment for high-altitude busbars used in substations according to claim 4, characterized in that: The cutting disc (45) is coaxially arranged on one side of the frame (42) and fixedly connected with a trapezoidal frustum-shaped chamfered portion (451). The circumferential surface of the chamfered portion (451) is evenly provided with knife grooves for processing welding grooves.

7. The automatic welding equipment for high-altitude busbars used in substations according to claim 4, characterized in that: The invention also includes a fixing mechanism (6), wherein the fixing mechanism (6) includes a fixing block (61) and a driving hydraulic rod three (62). The number of the fixing blocks (61) is two, which are symmetrically arranged on both sides of the pipe mother and are both hinged to the side wall surface of the first half shell (11). The number of the driving hydraulic rod three (62) is two, and the fixed ends thereof are both hinged to the side wall surface of the first half shell (11), and the telescopic ends thereof are respectively hinged to the two fixing blocks (61). The number of the fixing mechanisms (6) is two, which are respectively arranged corresponding to the pipe mother through holes (10) corresponding to the first half shell (11) and the second half shell (12).

8. The automatic welding equipment for high-altitude busbars used in substations according to claim 1, characterized in that: A positioning groove (111) and a positioning protrusion (121) that cooperates with the positioning groove (111) are respectively provided on the opposing surfaces of the first half shell (11) and the second half shell (12).

9. The automatic welding equipment for high-altitude busbars used in substations according to claim 7, characterized in that: It also includes a hydraulic pump, which is connected to the driving hydraulic rod 1 (232), the adjusting hydraulic rod 1 (233), the driving hydraulic rod 2 (33) and the driving hydraulic rod 3 (62) through pipelines.

10. The automatic welding equipment for high-altitude busbars used in substations according to claim 9, characterized in that: It also includes a controller, which is electrically connected to the control module of the hydraulic pump, the servo motor 1 (43) and the servo motor 2 (46).

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