Automatic Pipe Welding Device

Abstract

The present invention relates to an automatic pipe welding device, which includes: a first clamping mechanism provided with a first clamping hole for clamping a first pipe; a second clamping mechanism provided with a second clamping hole for clamping a second pipe; a welding mechanism provided with a welding through hole, and the axial centerlines of the first clamping hole, the welding through hole and the second clamping hole coincide; the welding mechanism includes a first driving part and a welding head, and the first driving part drives the welding head to perform a circular motion. When using the automatic pipe welding device, the first pipe is butted against the second pipe, and the first driving part drives the welding head to perform a circular motion along the circumference of the welding through hole to weld the butting part of the first pipe and the second pipe. Since the axial centerlines of the first clamping hole, the welding through hole and the second clamping hole coincide, the butt joint can be realized only by inserting the first pipe into the first clamping hole until it contacts the second pipe, and the butt joint process does not require close observation by human eyes, and the butt joint accuracy is high.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and particularly to an automatic pipe welding device. Background Art

[0002] A pressure regulator is one of the main equipment in a pressurized water reactor nuclear power plant, used to control the change of the internal pressure of the reactor system. When the pressure regulator is working, it is necessary to ensure that the pressure regulator is in an environment with stable temperature. Therefore, electric heaters are usually arranged around the pressure regulator to heat the pressure regulator, so that the pressure regulator is always in an environment with stable temperature, ensuring the normal operation of the pressure regulator. However, when the electric heater is used for a long time, the heating pipes inside will be damaged, and the damaged pipes need to be cut and new pipes need to be welded by a pipe welding device.

[0003] When the existing pipe welding device welds pipes, it is necessary to clamp and position the pipes so that the two pipes to be welded are butted, and then the butted part of the two pipes is welded. When the existing pipe welding device clamps and positions the pipes, it requires manual operation by the staff and the two pipes are butted by visual observation of the human eye. However, butting the two pipes by visual observation of the human eye easily leads to low butting accuracy, and then low welding accuracy. Moreover, the electric heater is located inside the reactor system with a large radiation intensity, and the entry of staff will cause the staff to be irradiated strongly, endangering the health of the staff. Summary of the Invention

[0004] Based on this, in view of the problem that butting two pipes by visual observation of the human eye easily leads to low butting accuracy, and then low welding accuracy. Moreover, this method will cause the staff to be irradiated and endanger the health of the staff when operating in environments such as nuclear power plants, it is necessary to provide an automatic pipe welding device.

[0005] An embodiment of the present application provides an automatic pipe welding device, which includes:

[0006] A first clamping mechanism, the first clamping mechanism is provided with a first clamping hole for clamping the first end of the first pipe;

[0007] A second clamping mechanism, the second clamping mechanism is provided with a second clamping hole for clamping the first end of the second pipe;

[0008] Welding mechanism, the first clamping mechanism and the second clamping mechanism are respectively located on both sides of the welding mechanism along the first direction and are respectively connected to the welding mechanism. The welding mechanism is provided with a welding through hole, and the axial centerlines of the first clamping hole, the welding through hole and the second clamping hole coincide, so that the first ends of the first pipe and the second pipe can be butted in the welding through hole; the welding mechanism includes a first driving part and a welding head, and the first driving part is used to drive the welding head to perform a circular motion along the circumference of the welding through hole to weld around the butting part of the first ends of the first pipe and the second pipe.

[0009] When using the automatic pipe welding device to weld the first pipe and the second pipe, generally, the first pipe is fixed, the first end of the second pipe is clamped by the second clamping mechanism, and the first end of the second pipe is located in the welding through hole. The control mechanism controls the movement of the transfer mechanism (the transfer mechanism can be a robotic arm, a lifting platform, etc.), so that the transfer mechanism drives the automatic pipe welding device to move. When the automatic pipe welding device moves around the first pipe, the first clamping mechanism clamps the unfixed first end of the first pipe, and the first end of the first pipe is butted against the first end of the second pipe. After the first end of the first pipe is butted against the first end of the second pipe, the control mechanism controls the movement of the first driving part, and the first driving part drives the welding head to perform a circular motion along the circumference of the welding through hole to weld the butting part of the first ends of the first pipe and the second pipe. When the first ends of the first pipe and the second pipe are butted, since the axial centerlines of the first clamping hole, the welding through hole and the second clamping hole coincide, only the first end of the second pipe needs to be clamped by the second clamping hole and the first end of the second pipe is located in the welding through hole, and the first end of the first pipe is inserted into the first clamping hole until it contacts the first end of the second pipe to achieve butt joint. The butt joint process does not require close observation by human eyes and has high butt joint accuracy.

[0010] When using the above-mentioned automatic pipe welding device to weld the first pipe and the second pipe, it is necessary to make the second clamping mechanism clamp the first end of the second pipe at a place far from the working area of the automatic pipe welding device, and then the control mechanism controls the transfer mechanism to drive the automatic pipe welding device to move to its working area, and the first clamping mechanism clamps the unfixed first end of the first pipe. Finally, the control mechanism controls the welding head to perform welding. The whole process only requires the staff to operate the control mechanism, which is convenient to operate. And during the working process, the staff will not approach the working area of the automatic pipe welding device, and it will not cause radiation to the staff when used in environments such as nuclear power plants, protecting the health of the staff.

[0011] In one embodiment, the first clamping mechanism includes:

[0012] A first fixed chuck, and the first fixed chuck is provided with a first fixed groove;

[0013] The first movable chuck is provided with a first movable groove.

[0014] The first driving assembly drives the first movable chuck to move in a second direction, so that the first movable groove approaches or moves away from the first fixed groove, and the second direction is perpendicular to the first direction.

[0015] In one embodiment, the first movable chuck is a semi-transparent or transparent chuck.

[0016] The first clamping mechanism further includes a monitoring camera, and the monitoring camera is installed on the first movable chuck to monitor the docking state of the first end of the first pipe and the first end of the second pipe.

[0017] In one embodiment, the welding mechanism includes:

[0018] A housing, the first clamping mechanism and the second clamping mechanism are respectively located on two sides of the housing along the first direction and are respectively connected to the housing, and the housing is provided with a welding through hole.

[0019] An annular gear is located inside the housing, a welding head is arranged on the inner wall of the annular gear, and the welding head protrudes radially from the inner wall of the annular gear.

[0020] A driving gear meshes with the annular gear; the first driving part is fixed to the housing, and the output shaft of the first driving part is connected to the driving gear for driving the driving gear to rotate.

[0021] In one embodiment, the housing includes:

[0022] A first body is connected to the first clamping mechanism.

[0023] A second body is connected to the second clamping mechanism, and the first body and the second body are slidably matched along the first direction; and

[0024] A second driving part is connected to the first body and is used for driving the second body to slidably cooperate with the first body.

[0025] In one embodiment, the welding head is connected to a power source through the annular gear to make the welding head energized and heated.

[0026] The housing further includes an insulating housing, the insulating housing is located in the space surrounded by the first body and the second body, and the annular gear is located inside the insulating housing, and the insulating housing is provided with a welding through hole.

[0027] In one embodiment, the welding mechanism further includes a screw rod. One end of the screw rod is connected to the output shaft of the second driving part, and the other end of the screw rod is connected to the second body. When the second driving part drives the screw rod to move, the screw rod drives the second body to move, so that the second body is slidably matched with the first body.

[0028] In one embodiment, the second locking mechanism is provided with an air inlet passage. The air inlet of the air inlet passage is communicated with an external air source, and the air outlet of the air inlet passage faces the welding through hole.

[0029] In one embodiment, the air inlet passage includes a first air path and an annular air path. One end of the first air path is the air inlet, and the other end of the first air path is communicated with the annular air path; the annular air path is arranged around the circumference of the second clamping hole, and a plurality of air outlets are provided in the annular air path, and the plurality of air outlets are evenly spaced along the circumference of the annular air path.

[0030] In one embodiment, the pipe welding device further includes a torque detection assembly. The torque detection assembly is arranged on the first clamping mechanism and is used to detect whether the first ends of the first pipe and the second pipe are butted. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the pipe automatic welding device in one embodiment;

[0032] Figure 2 is Figure 1 the explosion diagram of the pipe automatic welding device in

[0033] Figure 3 is Figure 1 the schematic structural diagram of the first clamping mechanism in

[0034] Figure 4 is Figure 1 the schematic structural diagram of the welding mechanism in

[0035] Figure 5 is Figure 1 the schematic connection diagram of the second driving part, the screw rod, the fitting, the first body and the second body in

[0036] Figure 6 is Figure 1 the schematic connection diagram of the first driving part, the insulating housing, the driving gear, the annular gear, the welding head, the cable and the setscrew in

[0037] Figure 7 is Figure 1 the schematic structural diagram of the second clamping mechanism in

[0038] Figure 8 is Figure 1 the schematic structural diagram of the other side of the second clamping mechanism in

[0039] Figure 9 For Figure 1 is a schematic structural diagram of an air inlet channel and a card slot opened in the second clamping mechanism in

[0040] Description of the reference numerals in the drawings:

[0041] Pipe automatic welding device 100;

[0042] The first clamping mechanism 110; the first clamping hole 102; the first fixed chuck 111; the first movable chuck 112; the first connecting plate 1121; the first driving assembly 113; the first electric push rod 1131; the third driving part 1132; the monitoring camera 114;

[0043] The second clamping mechanism 120; the second clamping hole 103; the second fixed chuck 121; the second movable chuck 122; the second driving assembly 123; the air inlet channel 104; the first air path 1041; the annular air path 1042; the air outlet 1043; the air nozzle 124; the card slot 105;

[0044] The welding mechanism 130; the welding through hole 101; the welding head 131; the housing 132; the first body 1321; the first protruding part 13211; the second body 1322; the second protruding part 13221; the insulating housing 1323; the first driving part 133; the driving gear 134; the annular gear 135; the second driving member 136; the screw 137; the mating part 138;

[0045] The cable 140; the setscrew 150;

[0046] The torque detection assembly 160;

[0047] The connection end 170. Detailed implementation manners

[0048] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0051] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0053] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0054] Please refer to Figure 1 - Figure 2 , an embodiment of the present application provides a pipeline automatic welding device 100, and the pipeline automatic welding device 100 includes a first clamping mechanism 110, a second clamping mechanism 120 and a welding mechanism 130.

[0055] The first clamping mechanism 110 is provided with a first clamping hole 102 for clamping the first end of a first pipeline (not shown). The second clamping mechanism 120 is provided with a second clamping hole 103 for clamping the first end of a second pipeline (not shown). The first clamping mechanism 110 and the second clamping mechanism 120 are respectively located on both sides of the welding mechanism 130 along the first direction X and are respectively connected to the welding mechanism 130. The welding mechanism 130 is provided with a welding through hole 101, and the axial centerlines of the first clamping hole 102, the welding through hole 101 and the second clamping hole 103 coincide, so that the first end of the first pipeline and the first end of the second pipeline can be butted within the welding through hole 101. The welding mechanism 130 includes a first driving part 133 and a welding head 131. The first driving part 133 is used to drive the welding head 131 to make a circular motion along the circumference of the welding through hole 101 to weld around the butting part of the first end of the first pipeline and the first end of the second pipeline.

[0056] When welding the first pipe and the second pipe using the automatic pipe welding device 100, generally, the first pipe is fixed, the first end of the second pipe is clamped by the second clamping mechanism 120, and the first end of the second pipe is positioned within the welding through-hole 101. The control mechanism controls the movement of the transfer mechanism (the transfer mechanism can be a robotic arm, a lifting platform, etc.), so that the transfer mechanism drives the automatic pipe welding device 100 to move. When the automatic pipe welding device 100 moves around the first pipe, the first clamping mechanism 110 clamps the unfixed first end of the first pipe, and the first end of the first pipe is docked with the first end of the second pipe. After the first end of the first pipe is docked with the first end of the second pipe, the control mechanism controls the movement of the first driving part 133, and the first driving part 133 drives the welding head 131 to perform a circular motion along the circumference of the welding through-hole 101 to weld the docking part of the first end of the first pipe and the first end of the second pipe. When the first end of the first pipe and the first end of the second pipe are docked, since the axial centerlines of the first clamping hole 102, the welding through-hole 101, and the second clamping hole 103 coincide, thus, only the first end of the second pipe needs to be clamped by the second clamping hole 103, and the first end of the second pipe is positioned within the welding through-hole 101. Inserting the first end of the first pipe into the first clamping hole 102 until it contacts the first end of the second pipe can achieve docking. The docking process does not require close observation by human eyes and has a high docking accuracy.

[0057] When welding the first pipe and the second pipe using the above-mentioned automatic pipe welding device 100, it is necessary to clamp the first end of the second pipe by the second clamping mechanism 120 at a place far from the working area of the automatic pipe welding device 100, and then the control mechanism controls the transfer mechanism to drive the automatic pipe welding device 100 to move to its working area, and the first clamping mechanism 110 clamps the unfixed first end of the first pipe. Finally, the control mechanism controls the welding head 131 to perform welding. Throughout the process, the staff only needs to operate the control mechanism, which is convenient to operate. And during the working process, the staff will not approach the working area of the automatic pipe welding device 100, and it will not cause radiation to the staff when used in environments such as nuclear power plants, protecting the physical health of the staff.

[0058] Please refer to Figure 1 - Figure 3 In an embodiment, the automatic pipe welding device 100 further includes a connection end 170. The first clamping mechanism 110, the second clamping mechanism 120, and the welding mechanism 130 are respectively fixed to the connection end 170, and the transfer mechanism is detachably connected to the connection end 170. When the automatic pipe welding device 100 is in use, the transfer mechanism and the connection end 170 are connected, so that the transfer mechanism drives the connection end 170, and further drives the first clamping mechanism 110, the second clamping mechanism 120, and the welding mechanism 130 to move, achieving the purpose of driving the automatic pipe welding device 100 to the working area.

[0059] Please refer to Figure 3 , in one embodiment, the first clamping mechanism 110 includes a first fixed chuck 111, a first movable chuck 112, and a first driving component 113. The first fixed chuck 111 is provided with a first fixed groove, the first movable chuck 112 is provided with a first movable groove, and the first driving component 113 drives the first movable chuck 112 to move along the second direction Y, so that the first movable groove approaches or moves away from the first fixed groove, and the second direction Y is perpendicular to the first direction X.

[0060] Specifically, since the first driving component 113 drives the first movable chuck 112 to move along the second direction Y, the first movable groove can move away from or approach the first fixed groove. When the first movable groove moves away from the first fixed groove, at this time, the space between the first movable groove and the first fixed groove is relatively large, and the first end of the first pipe can conveniently extend into the space between the first movable groove and the first fixed groove. After the first end of the first pipe extends into the space between the first movable groove and the first fixed groove, the control mechanism controls the first driving component 113 to drive the first movable chuck 112 to move along the second direction Y, so that the first movable groove approaches the first fixed groove until the first movable groove and the first fixed groove enclose a first clamping hole 102, and the first end of the first pipe is clamped through the first clamping hole 102 to prevent the first pipe from shaking during welding.

[0061] Please refer to Figure 3 , in one embodiment, the first driving component 113 includes a first electric push rod 1131 and a third driving part 1132. One end of the first electric push rod 1131 is connected to the first movable chuck 112, the third driving part 1132 is arranged on the first fixed chuck 111, and the output shaft of the third driving part 1132 is used to drive the first electric push rod 1131 to move along the second direction Y.

[0062] Specifically, the control mechanism controls the movement of the third driving part 1132, so that the output shaft of the third driving part 1132 drives the first electric push rod 1131 to move along the second direction Y. Since one end of the first electric push rod 1131 is connected to the first movable chuck 112, when the first electric push rod 1131 moves along the second direction Y, it drives the first

[0063] movable chuck 112 to move along the second direction Y, thereby realizing the approach or separation of the first movable groove from the first fixed groove.

[0064] In one embodiment, the third driving part 1132 is a linear motor or a cylinder.

[0065] In other embodiments, the third driving part 1132 can also be other driving structures as long as the function can be realized.

[0066]

[0067] ​0In one embodiment, the first driving assembly 113 further includes a first slide rail (not shown) and a first slider (not shown). The first slide rail is disposed on a side of the first fixed chuck 111 away from the third driving portion 1132, and the extending direction of the first slide rail is the second direction Y. The first slider is slidably engaged with the first slide rail, and the first slider is connected to the first movable chuck 112. Thus, the sliding engagement between the first slider and the first slide rail makes the movement of the first movable

[0068] chuck 112 approaching or separating from the first fixed chuck 111 smoother. Moreover, the first slider 5 and the first slide rail also play a guiding role, so that the first movable chuck 112 will not be offset or shaken during the movement along the second direction Y.

[0069] Please refer to Figure 3 , in one embodiment, the first movable chuck 112 has a first connecting plate 1121 protruding toward the first fixed chuck 111. The first connecting plate 1121 is fixed to the first slider, thereby facilitating the connection between the first movable chuck 112 and the first slider.

[0070] 0Please refer to Figure 1 - Figure 3 , in one embodiment, the first movable chuck 112 is a semi-transparent or transparent chuck.

[0071] The first clamping mechanism 110 further includes a monitoring camera 114. The monitoring camera 114 is installed on the first movable chuck 112 to monitor the docking state of the first end of the first pipeline and the first end of the second pipeline.

[0072] Specifically, when the first end of the first pipeline and the first end of the second pipeline are docked, since the first movable chuck 112 is a semi-transparent or transparent chuck and the monitoring camera 114 is installed on the first movable chuck 112, the monitoring camera 114 can capture the state when the first end of the first pipeline and the first end of the second pipeline are docked, and transmit the captured image to the control mechanism. The staff can visually judge whether the first end of the first pipeline and the first end of the second pipeline are docked by observing the image displayed at the control mechanism, so that the two are in a docked state during welding.

[0073] Please refer to Figure 4 - Figure 6, in one embodiment, the welding mechanism 130 includes a housing 132, a first driving part 133, a driving gear 134, and an annular gear 135. The first clamping mechanism 110 and the second clamping mechanism 120 are respectively located on two sides of the housing 132 along the first direction X, and are respectively connected to the housing 132. The housing 132 is provided with a welding through hole 101. The annular gear 135 is located inside the housing 132. The welding head 131 is arranged on the inner wall of the annular gear 135, and the welding head 131 protrudes radially from the inner wall of the annular gear 135. The annular gear 135 meshes with the driving gear 134. The first driving part 133 is fixed to the housing 132, and the driving gear 134 is connected to the output shaft of the first driving part 133, so that the first driving part 133 drives the driving gear 134 to rotate.

[0074] Specifically, since the driving gear 134 is connected to the output shaft of the first driving part 133, the first driving part 133 can drive the driving gear 134 to rotate, drive the annular gear 135 to rotate, and further make the welding head 131 perform a circular motion along the axial direction of the welding through hole 101 to weld the first end of the first pipe and the first end of the second pipe.

[0075] In one embodiment, the first driving part 133 is a motor.

[0076] In other embodiments, the first driving part 133 may also be other driving structures as long as the function can be realized.

[0077] Please refer to Figure 4 - Figure 5 , in one embodiment, the housing 132 includes a first body 1321, a second body 1322, and a second driving part 136. The first body 1321 is connected to the first clamping mechanism 110, the second body 1322 is connected to the second clamping mechanism 120, and the first body 1321 and the second body 1322 are in sliding fit along the first direction X. The second driving part 136 is connected to the first body 1321 and is used to drive the second body 1322 to be in sliding fit with the first body 1321.

[0078] Specifically, since the second driving part 136 is connected to the first body 1321 and is used to drive the second body 1322 and the first body 1321 to slide cooperatively along the first direction X, when the first body 1321 and the second body 1322 slide, the first body 1321 can approach or move away from the second body 1322 along the first direction X. Since the first body 1321 is connected to the first clamping mechanism 110 and the second body 1322 is connected to the second clamping mechanism 120, when the first body 1321 approaches or moves away from the second body 1322 along the first direction X, the first clamping mechanism 110 is driven to approach or move away from the second clamping mechanism 120 along the first direction X, and further, the first end of the first pipe approaches or moves away from the first end of the second pipe along the first direction X. When welding the butt joint of the first end of the first pipe and the first end of the second pipe, by moving the first body 1321 away from the second body 1322 along the first direction X, the first clamping mechanism 110 moves away from the second clamping mechanism 120 along the first direction X, and further, the first end of the first pipe moves away from the first end of the second pipe along the first direction X. At this time, the first end of the first pipe and the first end of the second pipe are spaced apart by a certain distance along the first direction X, thus meeting the spatial requirements for welding and enabling the first end of the first pipe and the first end of the second pipe to be welded smoothly.

[0079] Please refer to Figure 6 , in one embodiment, the welding head 131 is connected to the power supply through the annular gear 135 to energize the welding head 131 to generate heat. The housing 132 further includes an insulating housing 1323. The insulating housing 1323 is located in the space enclosed by the first body 1321 and the second body 1322, and the annular gear 135 is located inside the insulating housing 1323. The insulating housing 1323 is provided with a welding through hole 101.

[0080] Specifically, the power supply is connected to the welding head 131 through the annular gear 135 to supply power to the welding head 131, so that the welding head 131 generates heat for welding. Therefore, the annular gear 135 and the welding head 131 are charged. By providing the insulating housing 1323 and arranging the annular gear 135 inside the insulating housing 1323, insulation can be achieved to ensure that the current will not be transmitted to the entire pipe automatic welding device 100, preventing staff from getting an electric shock during use.

[0081] Please refer to Figure 6 , in one embodiment, the welding mechanism 130 further includes a cable 140 and a brush (not shown). The cable 140 is connected to the power supply to supply power to the brush. The brush is connected to the annular gear 135, so that the annular gear 135 is charged, and further heats the welding head 131.

[0082] In one embodiment, the welding head 131 is a tungsten electrode.

[0083] Please refer to Figure 5 - Figure 6, in one embodiment, the welding mechanism 130 further includes a setscrew 150, and the welding head 131 is fixedly connected to the annular gear 135 through the setscrew 150.

[0084] Please refer to Figure 4 , in one embodiment, the first body 1321 has a first protruding portion 13211 protruding towards the second body 1322, the second body 1322 has a second protruding portion 13221 protruding towards the first body 1321, the side walls of the first protruding portion 13211 and the second protruding portion 13221 facing each other are in close contact, and the side walls of the first protruding portion 13211 and the second protruding portion 13221 facing each other are in sliding fit, so as to realize the sliding fit between the first body 1321 and the second body 1322. Moreover, the side walls of the first protruding portion 13211 and the second protruding portion 13221 facing each other being in close contact and in sliding fit also play a guiding role for the first body 1321 and the second body 1322, ensuring that the first body 1321 moves along the first direction X when approaching or departing from the second body 1322.

[0085] Please refer to Figure 4 - Figure 5 , in one embodiment, the welding mechanism 130 further includes a screw rod 137, one end of the screw rod 137 is connected to the output shaft of the second driving portion 136, the other end of the screw rod 137 is connected to the second body 1322, when the second driving portion 136 drives the screw rod 137 to move along the first direction X, the screw rod 137 drives the second body 1322 to move, so that the second body 1322 slides relative to the first body 1321.

[0086] Specifically, the control mechanism controls the movement of the second driving portion 136, so that the second driving portion 136 drives the screw rod 137, causing the screw rod 137 to move. Since the second driving portion 136 is fixed relative to the first body 1321 and the other end of the screw rod 137 is connected to the second body 1322, when the screw rod 137 moves, it drives the second body 1322 to move along the first direction X, so that the second body 1322 slides relative to the first body 1321.

[0087] In one embodiment, the second driving portion 136 is a motor.

[0088] In other embodiments, the second driving portion 136 can also be other driving structures, as long as the function can be realized.

[0089] Please refer to Figure 4 - Figure 5In one embodiment, the welding mechanism 130 further includes a mating portion 138, which is fixedly connected to the second body 1322. The mating portion 138 defines a mating hole (not shown), and one end of the screw 137 facing away from the second driving portion 136 is threadedly engaged with the mating hole. As a result, the third driving portion drives the screw 137 to rotate, and the screw 137 rotates to drive the mating portion 138, thereby driving the second body 1322 to move along the first direction X, thereby achieving sliding between the second body 1322 and the first body 1321.

[0090] In one embodiment, the end of the screw rod 137 away from the second driving portion 136 is a fine thread, so that the moving distance of the second body 1322 is highly accurate.

[0091] Please refer to Figure 7 In one embodiment, the second clamping mechanism 120 includes a second fixed chuck 121, a second movable chuck 122 and a second driving assembly 123. The specific movement mode and connection relationship are similar to those of the first clamping mechanism 110 and will not be repeated here.

[0092] Please refer to Figure 8 - Figure 9 In one embodiment, the second clamping mechanism 120 is provided with an air inlet 104 , an air inlet (not shown) of the air inlet 104 is connected to an external air source, and an air outlet 1043 of the air inlet 104 faces the welding through hole 101 .

[0093] Specifically, the automatic pipe welding device 100 requires sufficient shielding gas during welding. An external gas source is connected to the air inlet of the air inlet 104, and the air outlet 1043 of the air inlet 104 is directed toward the welding through-hole 101. This allows external gas to enter the air inlet 104 through the air inlet and flow into the welding through-hole 101 through the air outlet 1043 of the air inlet 104, serving as shielding gas and ensuring a smooth welding process.

[0094] Please refer to Figure 8 - Figure 9 In one embodiment, the air inlet 104 includes a first air path 1041 and an annular air path 1042. One end of the first air path 1041 is an air inlet, which is connected to an external air source. The other end of the first air path 1041 is connected to the annular air path 1042. The annular air path 1042 is arranged around the circumference of the second clamping hole 103, and the annular air path 1042 is provided with a plurality of air outlets 1043. The plurality of air outlets 1043 are evenly spaced along the circumference of the annular air path 1042.

[0095] Specifically, the gas from the external gas source enters the first gas path 1041 through the air inlet. Since the first gas path 1041 is communicated with the annular gas path 1042, the gas can enter the annular gas path 1042 through the first gas path 1041 and flow into the welding through hole 101 through the plurality of air outlets 1043 opened on the annular gas path 1042 for use as a shielding gas. Moreover, since the plurality of air outlets 1043 are evenly spaced along the circumferential direction of the annular gas path 1042, the gas can flow into the welding through hole 101 evenly, ensuring that there is sufficient shielding gas in the welding through hole 101 during the welding process.

[0096] Please refer to Figure 8 - Figure 9 , in one embodiment, the second clamping mechanism 120 is further provided with a clamping groove 105, so that wires, cables, etc. can be stored in the clamping groove 105.

[0097] Please refer to Figure 8 - Figure 9 , in one embodiment, the second clamping mechanism 120 includes a nozzle 124. The air inlet of the first gas path 1041 is communicated with the nozzle 124, and the nozzle 124 is communicated with the external gas source, so as to facilitate the connection between the external gas source and the air inlet of the first gas path 1041, and further facilitate the gas supply.

[0098] In one embodiment, in order to facilitate the second clamping mechanism 120 to store wires, cables, etc., the second clamping mechanism 120 is set as a split structure. When the second clamping mechanism 120 is in a split state, the clamping groove 105 is exposed, which is convenient for the staff to store wires, cables, etc.

[0099] Please refer to Figure 1 , in one embodiment, the pipeline automatic welding device 100 further includes a torque detection component 160. The torque detection component 160 is arranged on the first clamping mechanism 110 and is used to detect whether the first ends of the first pipeline and the second pipeline are butted.

[0100] Specifically, the torque detection component 160 is arranged on the first clamping mechanism 110 and is used to detect the torque of the first clamping mechanism 110. When the first end of the first pipeline is butted with the second end of the second pipeline, there is a butting force between the first end of the first pipeline and the first end of the second pipeline. Thus, the butting force is transmitted to the first clamping mechanism 110 and then to the torque detection component 160. The torque detection component 160 transmits the detection result to the control mechanism, and the staff can observe the numerical change of the torque detection component 160 at the control mechanism. When the torque detection component 160 detects a sudden change in the torque value of the first clamping mechanism 110, it is considered that the first end of the first pipeline and the second end of the second pipeline have been butted, and then the subsequent welding steps are carried out.

[0101] Please refer to Figure 1, in one embodiment, for the convenience of installation, the torque detection component 160 is disposed inside the connection end 170, so that the connection end 170 wraps the torque detection component 160 to protect the torque detection component 160.

[0102] In one embodiment, the torque detection component 160 is a force sensor. Of course, it can also be other components for detecting torque, as long as it can be used to detect torque.

[0103] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0104] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An automatic pipeline welding device (100), characterized in that, The pipeline automatic welding device (100) includes: A first clamping mechanism (110), the first clamping mechanism (110) is provided with a first clamping hole (102), and the first clamping hole (102) is used for clamping the first end of the first pipeline; A second clamping mechanism (120), the second clamping mechanism (120) is provided with a second clamping hole (103), and the second clamping hole (103) is used for clamping the first end of the second pipeline; A welding mechanism (130), the first clamping mechanism (110) and the second clamping mechanism (120) are respectively located on both sides of the welding mechanism (130) along a first direction, and are respectively connected to the welding mechanism (130). The welding mechanism (130) is provided with a welding through hole (101). The axial centerlines of the first clamping hole (102), the welding through hole (101) and the second clamping hole (103) coincide, so that the first end of the first pipeline and the first end of the second pipeline can be butted within the welding through hole (101); the welding mechanism (130) includes a first driving part (133) and a welding head (131). The first driving part (133) is used for driving the welding head (131) to perform a circular motion along the circumference of the welding through hole (101) to weld around the butting part of the first end of the first pipeline and the first end of the second pipeline; the welding head (131) is connected to the power supply through an annular gear (135); the welding mechanism (130) further includes a cable (140) and a brush. The cable (140) is connected to the power supply to supply power to the brush; the brush is connected to the annular gear (135) so that the annular gear (135) is electrified to heat the welding head (131); And a torque detection component (160), the torque detection component (160) is arranged on the first clamping mechanism (110) and is used for detecting whether the first end of the first pipeline and the first end of the second pipeline are butted.

2. The automatic pipe welding device (100) according to claim 1, characterized in that, The first clamping mechanism (110) includes: A first fixed chuck (111), the first fixed chuck (111) is provided with a first fixed groove; A first movable chuck (112), the first movable chuck (112) is provided with a first movable groove; A first driving component (113), the first driving component (113) drives the first movable chuck (112) to move along a second direction so that the first movable groove approaches or moves away from the first fixed groove, and the second direction is perpendicular to the first direction.

3. The automatic pipe welding device (100) according to claim 2, characterized in that, The first movable chuck (112) is a semi-transparent or transparent chuck; The first clamping mechanism (110) further includes a monitoring camera (114), and the monitoring camera (114) is installed on the first movable chuck (112) to monitor the butting state of the first end of the first pipeline and the first end of the second pipeline.

4. The automatic pipe welding device (100) according to claim 1, characterized in that, The welding mechanism (130) includes: A housing (132), wherein the first clamping mechanism (110) and the second clamping mechanism (120) are respectively located on two sides of the housing (132) along a first direction, and are respectively connected to the housing (132), and the housing (132) is provided with the welding through hole (101); An annular gear (135), the annular gear (135) is located inside the housing (132), the welding head (131) is arranged on the inner wall of the annular gear (135), and the welding head (131) protrudes radially from the inner wall of the annular gear (135) along the annular gear (135); A driving gear (134), the driving gear (134) meshes with the annular gear (135); the first driving part (133) is fixed to the housing (132), and an output shaft of the first driving part (133) is connected to the driving gear (134) for driving the driving gear (134) to rotate.

5. The automatic pipe welding device (100) according to claim 4, characterized in that, The housing (132) includes: A first body (1321), the first body (1321) is connected to the first clamping mechanism (110); A second body (1322), the second body (1322) is connected to the second clamping mechanism (120), and the first body (1321) and the second body (1322) are in sliding fit along the first direction; and A second driving part, the second driving part is connected to the first body (1321) for driving the second body (1322) to be in sliding fit with the first body (1321).

6. The automatic pipe welding device (100) according to claim 5, characterized in that, The housing (132) further includes an insulating housing (1323), the insulating housing (1323) is located in a space surrounded by the first body (1321) and the second body (1322), and the annular gear (135) is located inside the insulating housing (1323), and the insulating housing (1323) is provided with the welding through hole (101).

7. The automatic pipe welding device (100) according to claim 5, characterized in that, The welding mechanism (130) further includes a screw rod (137), one end of the screw rod (137) is connected to an output shaft of the second driving part, the other end of the screw rod (137) is connected to the second body (1322), and when the second driving part drives the screw rod (137) to move, the screw rod (137) drives the second body (1322) to move, so that the second body (1322) is in sliding fit with the first body (1321).

8. The automatic pipe welding device (100) according to claim 1, characterized in that, The second clamping mechanism (120) is provided with an air inlet channel (104), an air inlet of the air inlet channel (104) is communicated with an external air source, and an air outlet (1043) of the air inlet channel (104) faces the welding through hole (101).

9. The automatic pipe welding device (100) according to claim 8, characterized in that, The intake passage (104) includes a first gas path (1041) and an annular gas path (1042). One end of the first gas path (1041) is the air inlet, and the other end of the first gas path (1041) communicates with the annular gas path (1042); the annular gas path (1042) is arranged circumferentially around the second clamping hole (103), and a plurality of air outlet holes (1043) are formed in the annular gas path (1042), and the plurality of air outlet holes (1043) are evenly spaced apart circumferentially along the annular gas path (1042).

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