Pipe fitting electric welding machine with constant-temperature cooling function

Abstract

The invention relates to the technical field of electric welding machines, one embodiment of the invention provides a pipe fitting electric welding machine with a constant-temperature cooling function, the pipe fitting electric welding machine comprises a mechanical arm and a welding head, and further comprises a working table, an air guide ring, a cooling pipe and an air supply assembly, the air guide ring is rotatably arranged on the working table, the air guide ring and a welding path are coaxially arranged, and the cooling pipe is arranged on the working table; the cooling pipe is movably arranged on the air guide ring and communicates with the air guide ring, the cooling pipe is used for blowing cold air to the welding position, the air supply assembly is used for conveying constant-temperature cold air to the air guide ring and comprises a fan, a cold water bin and a cold air pipe, the fan is installed on the cold water bin, the cold water bin communicates with a cooling-water machine, and the cold air pipe is located in the cold water bin; and the cold air pipe is communicated with an air outlet of the fan and is communicated with the air guide ring through an air supply pipe. According to the technical scheme, the technical problem that in the prior art, due to the fact that the temperatures of all positions of the welding position are different, the pipe fitting deforms, and welding precision is affected is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of electric welding machines, and in particular, to a pipe electric welding machine with a constant temperature cooling function. Background Art

[0002] Pipe fittings are a general term for components in pipeline systems that play roles in connection, control, direction change, diversion, sealing, and support. During pipeline installation, pipe fittings are usually installed in appropriate positions on the pipeline by welding. The traditional method of pipe fitting welding is manual welding, and the welding accuracy mainly depends on the experience and skills of the welder, which has high labor intensity. With the development of technology, more and more companies are using welding machines to weld pipe fittings.

[0003] In the process of welding pipe fittings, the pipe welding machine in the prior art generally first uses spot welding to pre-fix the pipe fittings on the pipeline, and then uses circumferential welding to weld the pipe fittings and the pipeline. During the welding process, since welding uses the high-temperature arc generated when the positive and negative poles are short-circuited for an instant to melt the solder on the welding rod and the material to be welded, the contacted objects are combined to achieve the connection between the pipe fitting and the pipeline. At the welding position of the pipe fitting and the pipeline, the pipe fitting and the pipeline will produce certain deformation under the high temperature of welding, and there are differences in temperature at each welding position. The different deformation amounts will have a certain impact on the welding accuracy. Summary of the invention

[0004] To overcome the above-mentioned defects, the embodiments of the present disclosure provide a pipe welding machine with a constant temperature cooling function, which solves the technical problem in the prior art that the temperature at different welding positions is different, causing deformation of the pipe and affecting the welding accuracy.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a pipe welding machine with a constant temperature cooling function, comprising a mechanical arm and a welding head, and further comprising: Workbench; An air guide ring, which is liftable and rotatable on the workbench, is coaxially arranged with the welding path, is provided with a notch for the welding head to pass through, and rotates with the rotation of the welding head, and the notch always corresponds to the position of the welding head; A cooling pipe, wherein a plurality of cooling pipes are provided, wherein the cooling pipes are movably provided on the air guide ring and are connected to the air guide ring, wherein the plurality of cooling pipes are circumferentially provided on the air guide ring at equal angles, and wherein the cooling pipes are used to blow cold air to the welding position; An air supply component, the air supply component is used to deliver constant temperature cold air to the air guide ring, and the air supply component includes: Fan; A cold water tank, the fan is installed on the cold water tank, and the cold water tank is connected to a water chiller; A cold air duct, wherein the cold air duct is located inside the cold water bin, the cold air duct is connected to an air outlet of the fan, and the cold air duct is connected to the air guide ring through an air supply pipe.

[0006] In order to realize the movement of the cooling pipe, an adjusting component is also included, and the adjusting component is used to drive the cooling pipe to move so that the air outlet of the cooling pipe is close to the welding position. The adjusting component includes: An adjusting screw, wherein a plurality of adjusting screws are provided, wherein the adjusting screws correspond to the cooling tubes one by one, the adjusting screws are threadedly connected to the air guide ring, and the adjusting screws are rotationally connected to the cooling tubes.

[0007] In order to achieve the connection between the cooling tube and the air guide ring, a fixed tube is also included. The fixed tube is connected to the air guide ring, and the cooling tube and the fixed tube are in sealed sliding cooperation.

[0008] In order to improve the cooling effect of cold water on the cold air pipe, the cold air pipe can be rotatably arranged inside the cold water bin, and the cold air pipe is rotatably connected to the output end of the fan and the air supply pipe.

[0009] In order to further improve the cooling effect of cold water on the cold air pipe, the cold air pipe is spirally arranged inside the cold water bin.

[0010] In order to ensure the uniformity of cold air delivery by the multiple cooling pipes, flow controllers are installed on the cooling pipes.

[0011] In order to enable the air guide ring to move with the welding head, two accompanying baffles are fixedly connected to the air guide ring, and the two accompanying baffles are located at the notch.

[0012] In order to realize the lifting and rotation of the air guide ring, a support assembly is also included, and the support assembly is used to support the air guide ring. The support assembly includes: A lifting frame, the lifting frame is annular and can be lifted and lowered on the workbench; A sliding block is fixedly connected to the outside of the air guide ring, and an annular sliding groove matching the sliding block is provided on the lifting frame.

[0013] In order to improve the cooling effect on the pipe fittings, an auxiliary cooling component is also included, and the auxiliary cooling component is used to assist in cooling the pipe fittings. The auxiliary cooling component includes: A fixing plate, the fixing plate being fixedly connected to the lifting frame; A cooling plate, wherein the cooling plate is movably arranged on the fixed plate, the cooling plate is in contact with the outer wall of the pipe fitting, and the cooling plate is connected with the cold water bin.

[0014] In order to improve the stability of the cold water bin, a support plate is fixedly connected to the bottom of the cold water bin, a plurality of balls are rotatably connected to the top of the lifting frame, and the bottom end of the support plate is in contact with the balls.

[0015] The beneficial effects of the embodiments of the present disclosure are: 1. In the present disclosure, the position of the cooling tube is adjusted by adjusting the screw, and the height of the air guide ring and the cooling tube is adjusted by the lifting frame, so that the cooling tube is directed toward the welding position, and the welding head is driven by the robotic arm to weld the pipe fitting. During the welding process, as the welding head moves, the accompanying baffle and the air guide ring are driven to rotate, so that the welding point is in the notch position, and the cooling tube cools the welding position other than the welding point.

[0016] 2. In the present disclosure, constant temperature cold water is delivered to the cold water bin by a water chiller, air is delivered to the inside of the cold air pipe by a fan, and the air in the cold air pipe is cooled by the cold water. The cold air pipe is spiral and rotates inside the cold water bin, thereby improving the cooling effect on the air in the cold air pipe, thereby ensuring the cooling effect on the pipe fittings.

[0017] 3. In the present disclosure, the air blowing volume of the cooling tube is controlled by a flow controller, so that the cold air is blown out evenly from multiple cooling tubes. At the same time, the cooling tube rotates with the welding head to evenly cool the area outside the welding position, thereby reducing the inconsistent deformation caused by the temperature difference at various parts of the pipe fitting, thereby ensuring the welding accuracy.

[0018] 4. In the present disclosure, the cooling plate is moved to make it close to the surface of the pipe, and part of the cold water in the cold water tank flows into the interior of the cooling plate. The surface of the pipe is cooled by the cold water, which further improves the cooling effect on the pipe, reduces the thermal deformation of the pipe, and ensures the welding accuracy of the pipe.

[0019] 5. Therefore, compared with the pipe welding machine in the prior art, the present invention uses a mechanical arm to drive the welding head to weld the pipe. In the process of the welding head rotating around the pipe for welding, the air guide ring and multiple cooling pipes are driven to rotate under the action of the accompanying baffle. The chiller keeps the cold water in the cold water bin in a constant low temperature state, thereby cooling the air delivered by the fan, blowing it to the welding position through the cooling pipe, cooling the area outside the welding position, reducing the thermal deformation of the pipe, and at the same time, the cooling pipe is used to evenly blow out cold air through the flow controller, thereby improving the uniformity of cooling the pipe, reducing the temperature difference at various parts of the pipe, and improving the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on the contents of the exemplary embodiments of the present disclosure and these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall first-view structure of an embodiment of the present disclosure; Figure 2 for Figure 1 A schematic diagram of the overall structure of the second viewing angle in the embodiment of FIG. Figure 3 for Figure 1 A schematic diagram of the structure of the air guide ring, the support assembly, the air supply assembly and the auxiliary cooling assembly in the embodiment; Figure 4 for Figure 1 A schematic structural diagram of an air guide ring and an air supply assembly in an embodiment of the present invention; Figure 5 for Figure 1 A schematic diagram of the structure of a cold water tank, a chiller and an auxiliary cooling component in an embodiment of the present invention; Figure 6 for Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] In the figure: 1. Robotic arm; 2. Welding head; 3. Workbench; 4. Air guide ring; 5. Cooling pipe; 6. Traveling baffle; 7. Fixed pipe; 8. Flow controller; 9. Support plate; 10. Ball; 101, lifting frame; 102, sliding block; 103, electric cylinder 1; 201, adjusting screw; 301, fan; 302, cold water tank; 303, cold air duct; 304, water chiller; 305, motor; 306, driving gear; 307, driven gear; 401, fixed plate; 402, cooling plate; 403, electric cylinder 2; 404, movable plate; 405, compression spring; 406, water supply pipe; 407, connecting pipe; 408, cold water pipe. DETAILED DESCRIPTION

[0023] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0024] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0025] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0026] In the present disclosure, unless otherwise expressly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, 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 understood as a limitation on the present disclosure.

[0028] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] like Figures 1 to 6As shown, it shows a pipe welding machine with a constant temperature cooling function in one embodiment of the present disclosure, including a robot arm 1 and a welding head 2. The robot arm 1 and the welding head 2 are prior arts well known to those skilled in the art, that is, a welding robot arm 1, which is composed of a robot arm 1 and welding equipment. The robot arm 1 is composed of a robot arm 1 body and a control cabinet (hardware and software). Taking arc welding and spot welding as examples, the welding equipment is composed of a welding power supply (including its control system), a wire feeder (arc welding), a welding gun (pliers), etc. For an intelligent robot, there should also be a sensor system, such as a laser or camera sensor and its control device, etc. The robot arm 1 and the welding head 2 are not the innovation points of the present disclosure, and will not be repeated here. A workbench is also included 3. An air guide ring 4, a cooling tube 5 and an air supply assembly. Compared with the pipe welding machine in the prior art, the present invention uses a mechanical arm 1 to drive a welding head 2 to weld the pipe. In the process of the welding head 2 rotating around the pipe for welding, the air guide ring 4 and a plurality of cooling tubes 5 are driven to rotate under the action of the accompanying baffle 6. The chiller 304 keeps the cold water in the cold water bin 302 in a constant low temperature state, thereby cooling the air delivered by the fan 301, blowing it to the welding position through the cooling tube 5, cooling the area outside the welding position, reducing the thermal deformation of the pipe, and at the same time, the cooling tube 5 is used to evenly blow out cold air through the flow controller 8, thereby improving the uniformity of cooling the pipe, reducing the temperature difference at various parts of the pipe, and improving the welding accuracy.

[0030] The air guide ring 4 can be lifted and rotatably arranged on the workbench 3. The diameter of the air guide ring 4 is larger than the diameter of the pipe fitting. In order to realize the lifting and rotation of the air guide ring 4, a support component is also included. The support component is used to support the air guide ring 4. The support component includes a lifting frame 101 and a slider 102. The lifting frame 101 is annular. The lifting frame 101 can be lifted and arranged on the workbench 3. An electric cylinder 103 is installed on the workbench 3. The lifting frame 101 is fixedly connected to the output end of the electric cylinder 103. The slider 102 is fixedly connected to the outside of the air guide ring 4. An annular slide groove matching the slider 102 is provided on the lifting frame 101. The diameter of the lifting frame 101 is larger than the diameter of the air guide ring 4. The air guide ring 4 and the welding path are coaxially arranged. The present disclosure is mainly aimed at the welding of coaxially butted pipe fittings. The welding path is circular. The pipe fitting is fixed on the workbench 3 by a clamp. , so that the circular welding path coincides with the axis of the air guide ring 4 and the lifting frame 101, and the lifting frame 101, the air guide ring 4 and the cooling tube 5 are driven to rise and fall by the electric cylinder 103, so that the air outlet of the cooling tube 5 corresponds to the height of the welding path, and a notch is provided on the air guide ring 4 for the welding head 2 to pass through. The air guide ring 4 rotates with the rotation of the welding head 2, and the notch always corresponds to the position of the welding head 2. In order to realize the movement of the air guide ring 4 with the welding head 2, two accompanying baffles 6 are fixedly connected to the air guide ring 4, and the two accompanying baffles 6 are located at the notch. The robot arm 1 drives the welding head 2 to move from the notch to the welding position, and then the robot arm 1 drives the welding head 2 to make a circular motion around the welding position of the pipe fitting. During the movement of the welding head 2, the accompanying baffle 6 and the air guide ring 4 will be pushed to rotate, and the center of the circular motion of the welding head 2 and the center of the rotation of the air guide ring 4 are axially corresponding.

[0031] The cooling tube 5 is provided with a plurality of cooling tubes 5, which can be movably arranged on the air guide ring 4 and communicated with the air guide ring 4. The plurality of cooling tubes 5 are circumferentially arranged at equal angles on the air guide ring 4. The cooling tube 5 is used to blow cold air to the welding position. In order to realize the communication between the cooling tube 5 and the air guide ring 4, a fixed tube 7 is also included. The fixed tube 7 is communicated with the air guide ring 4. An air guide cavity is opened inside the air guide ring 4. The fixed tube 7 passes through the air guide cavity. A plurality of vents are opened on the part of the fixed tube 7 located in the air guide cavity to realize the communication between the fixed tube 7 and the air guide ring 4. The cooling tube 5 and the fixed tube 7 are in sealed sliding cooperation. The fixed tube 7 is provided with a communicating port on one side facing the center of the air guide ring 4. A sealing ring is installed inside the communicating port. The cooling tube 5 is sealingly and slidably installed inside the communicating port. The moving distance of the cooling tube 5, that is, the length of the cooling tube 5 located in the fixed tube 7, can be increased by the arrangement of the fixed tube 7. The cooling tube 5 can be moved to a welding position close to the pipe fitting to adapt to different straight The cooling of the cooling tube 5 during welding of a pipe with a large diameter, in order to realize the movement of the cooling tube 5, also includes an adjusting component, which is used to drive the cooling tube 5 to move, so that the air outlet of the cooling tube 5 is close to the welding position. The adjusting component includes an adjusting screw 201, and a plurality of adjusting screws 201 are provided. The adjusting screw 201 corresponds to the cooling tube 5 one by one. The adjusting screw 201 is threadedly connected to the air guide ring 4, and the adjusting screw 201 is rotatably connected to the cooling tube 5. The position of the cooling tube 5 can be adjusted by rotating the adjusting screw 201, so that the cooling tube 5 moves radially along the air guide ring 4. The air outlet of the cooling tube 5 is close to the welding path, and the air outlets of the plurality of cooling tubes 5 jointly form a circle slightly larger than the diameter of the welding path. When the welding head 2 welds the welding position, the welding head 2 drives the air guide ring 4 and the cooling tube 5 to rotate around the pipe fitting through the accompanying baffle 6, and blows cold air to the position outside the welding position to cool the pipe fitting and reduce the thermal deformation of the pipe fitting.

[0032] The air supply component is used to deliver constant temperature cold air to the air guide ring 4. The air supply component includes a fan 301, a cold water bin 302 and a cold air pipe 303. The fan 301 is installed on the cold water bin 302. The cold water bin 302 is connected to the chiller 304. The cold air pipe 303 is located inside the cold water bin 302. The cold air pipe 303 is connected to the air outlet of the fan 301. The cold air pipe 303 is connected to the air guide ring 4 through the air supply pipe. The cold water in the cold water bin 302 is cooled at a constant temperature by the chiller 304. The fan 301 delivers air to the cold air pipe 303, and the cold water cools the cold air in the cold air pipe 303. The air is cooled and cooled, so that the cooling pipe 5 blows constant temperature cold air to the welding position, and the pipe is cooled more stably. In order to improve the cooling effect of cold water on the cold air pipe 303, the cold air pipe 303 can be rotatably arranged inside the cold water bin 302, and the two ends of the cold air pipe 303 are coaxially arranged with the cold water bin 302. A motor 305 is installed on the cold water bin 302, and the output end of the motor 305 is fixedly connected to a driving gear 306. The part of the cold air pipe 303 located outside the cold water bin 302 is fixedly sleeved with a driven gear 307, and the driven gear 307 and the driving gear 306 are fixedly sleeved. The cold air pipe 303 is meshed, and the output end of the fan 301 and the air supply pipe are connected in rotation. The motor 305 drives the driving gear 306 to rotate, thereby driving the driven gear 307 and the cold air pipe 303 to rotate. The cold air pipe 303 stirs the cold water in the cold water bin 302 to improve the temperature uniformity of the cold water in the cold water bin 302, and at the same time increases the contact between the air and the cold water in the cold air pipe 303, thereby improving the cooling effect on the air. The cold air pipe 303 is spirally arranged inside the cold water bin 302 to extend the residence time of the air in the cold air pipe 303. Increasing the contact area with cold water makes it easier for cold water to cool the air and improves the cooling effect on the pipes. In order to improve the stability of the cold water bin 302, a support plate 9 is fixedly connected to the bottom of the cold water bin 302, and a plurality of balls 10 are rotatably connected to the top of the lifting frame 101. The bottom end of the support plate 9 is in contact with the balls 10. When the welding head 2 drives the air guide ring 4 to rotate, the cold water bin 302 rotates with the air guide ring 4, and the support plate 9 and the cold water bin 302 are supported by the balls 10. At the same time, the rotation of the balls 10 reduces the resistance to the rotation of the support plate 9 and the cold water bin 302.

[0033] In order to ensure the uniformity of cold air delivery by multiple cooling pipes 5, a flow controller 8 is installed on the cooling pipe 5. The flow controller 8 is used to control the amount of cold air blown out by the cooling pipe 5 to ensure the uniformity of air output from each cooling pipe 5. The pipes are cooled evenly to avoid large air output from the cooling pipe 5 close to the air supply pipe, small air output from the cooling pipe 5 far from the air supply pipe, or other phenomena that cause uneven air output from the cooling pipe 5.

[0034] In order to improve the cooling effect on the pipe fittings, an auxiliary cooling component is also included, which is used to assist in cooling the pipe fittings. The auxiliary cooling component includes a fixed plate 401 and a cooling plate 402. The fixed plate 401 is fixedly connected to the lifting frame 101, and the cooling plate 402 is movably arranged on the fixed plate 401. An electric cylinder 403 is installed on the fixed plate 401, and the output end of the electric cylinder 403 is fixedly connected to a movable plate 404. The cooling plate 402 is connected to the side of the movable plate 404 away from the fixed plate 401 through a compression spring 405 and a telescopic rod. The cooling plate 402 contacts the outer wall of the pipe fitting, and the cooling plate 402 is connected to the cold water bin 302. The movable plate 404 and the cooling plate 402 can be driven close to the pipe fitting by the electric cylinder 403. Under the action of the compression spring 405, the cooling plate 402 is close to the surface of the pipe fitting. The cooling plate 402 is a hollow structure. While supporting and limiting, the constant temperature cold water in the cold water bin 302 can flow into the interior of the cooling plate 402 to assist in cooling the surface of the pipe fittings, further reducing the thermal deformation of the pipe fittings, thereby ensuring the welding accuracy of the pipe fittings. A water supply pipe 406 is installed on the fixed plate 401, and the cooling plate 402 is connected to the water supply pipe 406 through a telescopic hose. Multiple water supply pipes 406 are connected through a connecting pipe 407, and the connecting pipe 407 is connected to the cold water bin 302 through a cold water pipe 408. The cold water pipe 408 is a hose. The cold water pipe 408 can adapt to the rotation of the cold water bin 302 through the extension and bending of the cold water pipe 408, and can adapt to the movement of the cooling plate 402 through the extension and extension of the telescopic hose. A limit frame can be set on the lifting frame 101 to limit and block the cold water pipe 408, so that the cold water pipe 408 is within the external range of the lifting frame 101, to prevent the cold water pipe 408 from moving to the welding position and hindering the movement of the welding head 2.

[0035] The working principle or use process of the pipe welding machine with constant temperature cooling function is as follows: The spot-welded pipe is clamped on the workbench 3, the axis of the circumferential welding path of the pipe coincides with the axis of the air guide ring 4, and the lifting frame 101 and the air guide ring 4 are initially at a higher position to reduce obstacles to the clamping of the pipe; After the pipe is clamped, the electric cylinder 103 drives the lifting frame 101 and the air guide ring 4 to descend, so that the air outlet of the cooling pipe 5 and the height of the welding position are aligned. The position of the cooling pipe 5 is adjusted in advance according to the diameter of the pipe, and the adjusting screw 201 is rotated to drive the cooling pipe 5 to move along the radial direction of the air guide ring 4, so that the air outlet of the cooling pipe 5 and the welding position are close to each other; The robot arm 1 drives the welding head 2 to enter the range of the air guide ring 4 from the notch, and the welding head 2 is close to the welding position, that is, the weld. The weld of the pipe fitting is welded by the welding head 2. At the same time, the robot arm 1 drives the welding head 2 to rotate around the circular weld to weld. When the welding head 2 rotates around the pipe fitting, the accompanying baffle 6 and the air guide ring 4 are driven to rotate, so that the cooling pipe 5 rotates around the pipe fitting; The water chiller 304 keeps the cold water in the cold water bin 302 at a constant low temperature. The fan 301 delivers air to the inside of the cold air pipe 303. The motor 305 drives the cold water pipe 408 to rotate. The cold water cools the air in the cold air pipe 303. The cold air is delivered to the inside of the air guide ring 4, the fixed pipe 7 and the cooling pipe 5 through the air delivery pipe. The cooling pipe 5 blows cold air to the welding position of the pipe to cool it down, thereby reducing the thermal deformation of the pipe. The air guide ring 4 drives the cold air bin to rotate. After the welding head 2 rotates one circle in the forward direction, the robot arm 1 drives the welding head 2 to rotate one circle in the reverse direction, and the weld can be welded again to improve the welding quality, or simply rotate in the reverse direction without welding, and the welding head 2 drives the air guide ring 4 to rotate back to the original position to avoid the continuous rotation of the lines of the fan 301 and the chiller 304 to cause entanglement. The air guide ring 4 rotates back to the original position after a single rotation; After welding is completed, the robot arm 1 drives the welding head 2 away from the pipe fitting, and the electric cylinder 103 drives the lifting frame 101 to rise away from the pipe fitting, and then the pipe fitting is removed, and the new pipe fitting is clamped on the workbench 3 for subsequent welding.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, which should be included in the scope of the claims of the present disclosure.

Claims

1. A pipe welding machine with a constant temperature cooling function, comprising a mechanical arm (1) and a welding head (2), characterized in that: Also includes: Workbench (3); An air guide ring (4), the air guide ring (4) being rotatably arranged on the workbench (3), the air guide ring (4) being coaxially arranged with the welding path, the air guide ring (4) being provided with a notch for the welding head (2) to pass through, the air guide ring (4) rotating along with the rotation of the welding head (2), the notch always corresponding to the position of the welding head (2); a cooling pipe (5), wherein a plurality of cooling pipes (5) are provided, wherein the cooling pipe (5) is movably arranged on the air guide ring (4) and is in communication with the air guide ring (4), wherein the plurality of cooling pipes (5) are circumferentially arranged at equal angles on the air guide ring (4), and wherein the cooling pipe (5) is used to blow cold air toward the welding position; An air supply component, the air supply component is used to deliver constant temperature cold air to the air guide ring (4), the air supply component comprising: Fan (301); A cold water tank (302), the fan (301) being installed on the cold water tank (302), and the cold water tank (302) being connected to a chiller (304); A cold air pipe (303), the cold air pipe (303) is located inside the cold water bin (302), the cold air pipe (303) is connected to an air outlet of the fan (301), and the cold air pipe (303) is connected to the air guide ring (4) via an air supply pipe.

2. A pipe welding machine with constant temperature cooling function according to claim 1, characterized in that: It also includes an adjustment component, the adjustment component is used to drive the cooling pipe (5) to move so that the air outlet of the cooling pipe (5) is close to the welding position, and the adjustment component includes: An adjusting screw (201), wherein a plurality of adjusting screws (201) are provided, wherein the adjusting screws (201) correspond to the cooling tubes (5) one by one, wherein the adjusting screws (201) are threadedly connected to the air guide ring (4), and wherein the adjusting screws (201) and the cooling tubes (5) are rotatably connected.

3. A pipe welding machine with constant temperature cooling function according to claim 2, characterized in that: It also comprises a fixed tube (7), the fixed tube (7) being in communication with the air guide ring (4), and the cooling tube (5) and the fixed tube (7) being in sealing and sliding cooperation.

4. The pipe welding machine with constant temperature cooling function according to claim 3, characterized in that: The cold air pipe (303) is rotatably arranged inside the cold water bin (302), and the cold air pipe (303) is rotatably connected to the output end of the fan (301) and the air supply pipe.

5. The pipe welding machine with constant temperature cooling function according to claim 4, characterized in that: A flow controller (8) is installed on the cooling pipe (5).

6. The pipe welding machine with constant temperature cooling function according to claim 5, characterized in that: Two accompanying baffles (6) are fixedly connected to the air guide ring (4), and the two accompanying baffles (6) are located at the notch.

7. The pipe welding machine with constant temperature cooling function according to claim 6, characterized in that: The cold air pipe (303) is arranged in a spiral shape inside the cold water bin (302).

8. The pipe welding machine with constant temperature cooling function according to claim 7, characterized in that: It also includes a support assembly, the support assembly is used to support the air guide ring (4), and the support assembly includes: A lifting frame (101), the lifting frame (101) is annular and can be lifted and lowered on the workbench (3); A sliding block (102), the sliding block (102) being fixedly connected to the outside of the air guide ring (4), and an annular sliding groove matching the sliding block (102) being provided on the lifting frame (101).

9. The pipe welding machine with constant temperature cooling function according to claim 8, characterized in that: It also includes an auxiliary cooling component, which is used to assist in cooling the pipe fittings. The auxiliary cooling component includes: A fixing plate (401), the fixing plate (401) being fixedly connected to the lifting frame (101); A cooling plate (402), the cooling plate (402) being movably arranged on the fixed plate (401), the cooling plate (402) being in contact with an outer wall of the pipe, and the cooling plate (402) being in communication with the cold water bin (302).

10. The pipe welding machine with constant temperature cooling function according to claim 9, characterized in that: The bottom of the cold water bin (302) is fixedly connected to a support plate (9), the top of the lifting frame (101) is rotatably connected to a plurality of balls (10), and the bottom end of the support plate (9) is in contact with the balls (10).

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