Pipeline welding equipment

Abstract

The utility model discloses pipeline welding equipment which comprises a driving part, a transmission part, a welding needle, a clamping part and a water cooling system. The clamping part is used for clamping and fixing a pipe fitting to be welded; wherein the welding needle is arranged on the mounting seat in an angle-adjustable manner, and the driving part can drive the mounting seat and the welding needle to do circumferential movement around the pipe fitting to be welded through the transmission part so as to perform welding operation; cooling liquid of the water cooling system can flow through a negative plate of the pipeline welding equipment to cool the negative plate. The technical problem that existing pipeline welding equipment is low in welding efficiency is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline welding, and more specifically, relates to a pipeline welding device. Background Art

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by means of heating, high temperature or high pressure.

[0003] In the existing pipeline welding device, usually the welding needle cannot swing when making a circumferential movement around the outside of the pipe fitting to be welded. When the required fillet height by the customer is relatively large, multi-layer and multi-pass welding is required, resulting in a relatively long welding time. In addition, with the long-term operation of the pipeline welding device, a large amount of heat will be generated on the cathode plate of the pipeline welding device. After the pipeline welding device continuously works for a period of time, it needs to be cooled down before it can continue with the welding operation, thus resulting in low welding efficiency. Summary of the Utility Model

[0004] Aiming at the technical problem of low welding efficiency of the existing pipeline welding device, the purpose of the utility model is to provide a pipeline welding device, which includes a driving part, a transmission part, a welding needle, a clamping part, and a water cooling system; the clamping part is used for clamping and fixing the pipe fitting to be welded; wherein, the welding needle is adjustably arranged on the mounting seat, and the driving part can drive the mounting seat and the welding needle to make a circumferential movement around the pipe fitting to be welded through the transmission part for welding operation; the coolant of the water cooling system can flow through the cathode plate of the pipeline welding device to cool down the cathode plate.

[0005] Further, the water cooling system includes: a liquid inlet pipe, a liquid outlet pipe, and a coolant channel arranged inside the cathode plate; wherein, the coolant channel connects the liquid inlet pipe and the liquid outlet pipe.

[0006] Further, the clamping part includes: a clamping body, which is internally provided with a first top bead air chamber and a second top bead air chamber, and is provided with corresponding first air inlet holes and second air inlet holes; a cylinder top bead one is movably arranged in the first top bead air chamber, and a cylinder top bead two is movably arranged in the second top bead air chamber;

[0007] Wherein, the clamping part further includes a first air inlet pipe and a second air inlet pipe, the first air inlet pipe is connected to the first top bead air chamber through the first air inlet hole; the second air inlet pipe is connected to the first top bead air chamber through the second air inlet hole; the driving gas can drive the cylinder top bead one to extend out of the first top bead air chamber through the first air inlet pipe; the driving gas can drive the cylinder top bead two to extend out of the second top bead air chamber through the second air inlet pipe.

[0008] Further, the clamping part further includes: a flow splitting module, through which the total intake pipe communicates with the first intake pipe and the second intake pipe; wherein, the electronic control module is electrically connected to the flow splitting module to realize the synchronous on-off of the first intake pipe and the second intake pipe.

[0009] Further, the pipe welding device further includes: a shielding gas intake pipe, which communicates with the welding area of the pipe welding device and is used to convey shielding gas to the welding area.

[0010] Further, a clamping opening is provided on one side of the clamping part, and the pipe welding device further includes: a protective door, which is movably arranged outside the clamping part and is used to close the clamping opening when the pipe welding device is performing welding operations, so as to avoid the loss of shielding gas during the welding process.

[0011] Further, the protective door is a hinge door, and the hinge door is rotatably arranged outside the clamping part through a hinge shaft; wherein, an arc-shaped guiding groove is formed on the clamping part, and a corresponding guiding slider is provided on the hinge door, and the guiding slider can slide along the arc-shaped guiding groove.

[0012] Further, the protective door includes two hinge doors, and a sealing component is provided between the two hinge doors.

[0013] Further, the sealing component is a magnetic part.

[0014] Further, the driving part is arranged parallel to the axis of the pipe welding device.

[0015] Further, the transmission part includes a plurality of meshing transmission gears, and the driving part transmits the driving force to the mounting seat through the plurality of meshing transmission gears.

[0016] The technical effects and advantages of the present utility model:

[0017] 1. When the coolant of the water cooling system flows through the cathode plate of the pipe welding device, it can directly cool the cathode plate of the pipe welding device. Compared with the coolant pipeline in contact with the cathode plate surface for heat exchange, directly setting the coolant of the water cooling system to flow through the cathode plate of the pipe welding device can improve the cooling effect on the cathode plate, avoid overheating of the cathode plate, thereby improving the duty cycle, and further improving the welding quality while improving the welding efficiency.

[0018] 2. Compared with the case where each of the first intake pipe and the second intake pipe is electrically connected to an electronic control module to separately control the on-off of the first intake pipe and the second intake pipe, by providing a shunt module to connect the main intake pipe to the first intake pipe and the second intake pipe, only one electronic control module needs to be electrically connected to the shunt module, which can simplify the pipeline structure of the driving gas, make the structural design simpler, and reduce the cost. In addition, it can also achieve the synchronous on-off of the first intake pipe and the second intake pipe, avoiding the problem of asynchronous on-off with a time difference between the first intake pipe and the second intake pipe. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a pipeline welding device provided by the present utility model;

[0020] Figure 2 is Figure 1 an enlarged view of part A in

[0021] Figure 3 is a schematic structural diagram of the water cooling system;

[0022] Figure 4 is Figure 3 a sectional view of the water cooling system in

[0023] Figure 5 is a schematic diagram of the intake of the clamping part;

[0024] Figure 6 is a schematic diagram of the intake pipeline inside the clamping part;

[0025] Figure 7 is a schematic structural diagram of the clamping part;

[0026] Figure 8 is a schematic structural diagram of the clamping part from another perspective;

[0027] Figure 9 is a connection schematic diagram of the welding needle and the mounting seat;

[0028] Figure 10 is an internal transmission schematic diagram of the transmission part.

[0029] In the figure:

[0030] 10. Driving part; 20. Transmission part; 31. Welding needle; 32. Swing block; 33. Mounting seat; 40. Clamping part; 41. Clamping body; 411. First intake pipe; 412. Second intake pipe; 413. Shielding gas intake pipe; 421. First cylinder top bead; 422. Second cylinder top bead; 431. First intake hole; 432. Second intake hole; 50. Water cooling system; 51. Liquid inlet pipe; 52. Liquid outlet pipe; 53. Coolant channel; 60. Cathode plate; 70. Protection door; 71. Hinged door; 72. Hinge shaft; 73. Guide slider; 74. Arc-shaped guide groove. Detailed implementation mode

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0032] Refer to Figure 1 , which is a schematic structural diagram of a pipeline welding device provided by the present utility model. In combination with Figures 1 to 10 , the pipeline welding device includes, for example: a driving part 10, a transmission part 20, a welding needle 31, a clamping part 40, and a water cooling system 50. The clamping part 40 is used to clamp and fix the pipe fittings to be welded; the welding needle 31 is adjustably arranged on the mounting seat 33 at an angle, and the driving part 10 can drive the mounting seat 33 and the welding needle 31 to perform a circumferential movement around the pipe fittings to be welded through the transmission part 20 for welding operations; the coolant of the water cooling system 50 can flow through the cathode plate 60 of the pipeline welding device to cool the cathode plate 60.

[0033] For example, the welding needle 31 is adjustably arranged on the mounting seat 33 at an angle through a swing block 32. When the driving part 10 drives the mounting seat 33 and the welding needle 31 to perform a circumferential movement around the pipe fittings to be welded through the transmission part 20 for welding operations, the welding needle 31 and the swing block 32 can swing left and right relative to the mounting seat 33 to form a relatively wide weld seam, and the customer requirements for a large fillet weld height can be achieved without multi-layer and multi-pass welding.

[0034] It can be understood that when the coolant of the water cooling system 50 flows through the cathode plate 60 of the pipeline welding device, it can directly cool the cathode plate 60 of the pipeline welding device. Compared with the coolant pipeline in surface contact with the cathode plate 60 for heat exchange, directly setting the coolant of the water cooling system 50 to flow through the cathode plate 60 of the pipeline welding device can improve the cooling effect on the cathode plate 60, avoid overheating of the cathode plate 60, thereby improving the duty cycle, and further improving the welding quality while improving the welding efficiency.

[0035] Further, the water cooling system 50 includes: a liquid inlet pipe 51, a liquid outlet pipe 52, and a coolant channel 53 provided in the cathode plate 60; wherein, the coolant channel 53 connects the liquid inlet pipe 51 and the liquid outlet pipe 52. For example, the coolant channel 53 is located in the lower half of the cathode plate 60, and the shape of the coolant channel 53 is U-shaped. In a specific embodiment, the coolant enters from the liquid inlet pipe 51, flows through the coolant channel 53 to directly cool the cathode plate 60, and then flows out from the liquid outlet pipe 52.

[0036] Further, the clamping portion 40 includes: a clamping body 41, which is internally provided with a first top bead air chamber and a second top bead air chamber, and is provided with corresponding first air inlet holes 431 and second air inlet holes 432; a cylinder top bead one 421 is movably arranged in the first top bead air chamber, and a cylinder top bead two 422 is movably arranged in the second top bead air chamber; wherein, the clamping portion 40 further includes an air inlet pipe one 411 and an air inlet pipe two 412, the air inlet pipe one 411 communicates with the first top bead air chamber through the first air inlet hole 431; the air inlet pipe two 412 communicates with the first top bead air chamber through the second air inlet hole 432; the driving gas can drive the cylinder top bead one 421 to extend out of the first top bead air chamber through the air inlet pipe one 411; the driving gas can drive the cylinder top bead two 422 to extend out of the second top bead air chamber through the air inlet pipe two 412.

[0037] Further, the clamping portion 40 further includes: a shunt module, the total air inlet pipe communicates with the air inlet pipe one 411 and the air inlet pipe two 412 through the shunt module; wherein, the electronic control module is electrically connected to the shunt module to realize the synchronous on-off of the air inlet pipe one 411 and the air inlet pipe two 412. For example, the electronic control module can be a solenoid valve.

[0038] It can be understood that, compared with each of the air inlet pipe one 411 and the air inlet pipe two 412 being electrically connected to an electronic control module to respectively control the on-off of the air inlet pipe one 411 and the air inlet pipe two 412, by providing a shunt module to connect the total air inlet pipe with the air pipe one 411 and the air inlet pipe two 412, only one electronic control module needs to be provided and electrically connected to the shunt module, which can simplify the pipeline structure of the driving gas, the structural design is simpler, and the cost is lower. In addition, it can also realize the synchronous on-off of the air inlet pipe one 411 and the air inlet pipe two 412, avoiding the problem of out-of-sync on-off with a time difference between the air inlet pipe one 411 and the air inlet pipe two 412. For example, the pipeline welding equipment is provided with two clamping portions 40, and the driving gas flow channels of the two clamping portions 40 are connected through the first air inlet hole 431 and the second air inlet hole 432.

[0039] Further, the pipeline welding device further includes: a shielding gas inlet pipe 413, which is connected to the welding area of the pipeline welding device and is used to convey shielding gas to the welding area. For example, a clamping opening is provided on the clamping body 41, and a plurality of shielding gas release holes are provided inside the clamping body 41 around the clamping opening. The shielding gas can enter the welding area of the pipeline welding device through the shielding gas inlet pipe 413 and the plurality of shielding gas release holes. For example, the shielding gas is argon.

[0040] Further, the pipeline welding device further includes: a protective door 70, which is movably arranged outside the clamping part 40 and is used to close the clamping opening when the pipeline welding device is performing welding operations, so as to avoid the loss of shielding gas during the welding process.

[0041] Further, the protective door 70 includes a hinged door 71, and the hinged door 71 is rotatably arranged outside the clamping part 40 through a hinge shaft 72; wherein, an arc-shaped guiding groove 74 is provided on the clamping part 40, and a corresponding guiding slider 73 is provided on the hinged door. The guiding slider 73 can slide along the arc-shaped guiding groove 74. The guiding slider 73 cooperates with the arc-shaped guiding groove 74 to guide and limit the rotation distance and rotation angle of the hinged door 71.

[0042] It can be understood that during the welding operation of the existing pipeline welding device, the welding area is generally directly exposed to the external environment, resulting in a large loss of shielding gas during welding, poor color of the welded finished product, and unguaranteed quality. By providing the protective door 70 outside the clamping part 40, it is possible to effectively prevent the loss of shielding gas during the welding operation of the pipeline welding device and ensure the welding quality.

[0043] Further, the protective door 70 includes two hinged doors 71, and a sealing component is provided between the two hinged doors 71. For example, the sealing component can be a stepped surface, so as to increase the contact area between the two hinged doors 71 through the stepped surface and improve the sealing effect between the two hinged doors 71.

[0044] It can be understood that compared with only providing one protective door, providing the protective door 70 with two hinged doors 71 can shorten the opening and closing time of the protective door 70, thereby shortening the welding operation time and improving the welding efficiency. By providing a sealing component between the two hinged doors 71, the sealing effect at the connection of the two hinged doors 71 can be improved, and the loss of shielding gas from the connection of the two hinged doors 71 can be avoided.

[0045] Preferably, the sealing component is a magnetic part. For example, magnetic parts are provided on both of the hinge doors 71. When the protective door 70 is closed, the magnetic attraction of the magnetic parts can improve the sealing effect at the connection of the two hinge doors 71. For example, the magnetic part is a magnet.

[0046] Further, the driving part 10 is arranged parallel to the axis of the pipeline welding device.

[0047] It can be understood that, compared with collinear arranging the driving part 10 with the axis of the pipeline welding device, by arranging the driving part 10 parallel to the axis of the pipeline welding device, the driving part 10 and the clamping part 40 can be arranged staggeredly to meet the operation requirements of a narrow welding space, and to avoid that the clamping part 40 of the pipeline welding device cannot extend into the narrow welding space for operation due to the volume at the driving part 10.

[0048] Further, the transmission part 20 includes a plurality of meshing transmission gears. The driving part transmits the driving force to the mounting seat 33 through the plurality of meshing transmission gears. For example, the transmission part 20 includes a first transmission gear 21 and a second transmission gear 22. The mounting seat 33 is an arc-shaped tooth disc. The output end of the driving part 10 is drivingly connected to the first transmission gear 21. The first transmission gear 21 meshes with the second transmission gear 22. The second transmission gear 22 meshes with the mounting seat 33. The output end of the driving part 10 can drive the first transmission gear 21 to rotate. The first transmission gear 21 can transmit the driving force to the mounting seat 33 through the second transmission gear 22, so as to realize the circumferential movement of the welding needle 33 around the pipe to be welded for welding operation.

[0049] For example, the transmission part 20 includes six first transmission gears 21 and four second transmission gears 22. It can be understood that by arranging a plurality of first transmission gears 21, the staggering distance between the driving part 10 and the clamping part 40 can be increased, so that the pipeline welding device can also operate in a narrow welding space.

[0050] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which 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 thus should not be construed as a limitation to the present invention.

[0051] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model shall be implemented by conventional means in the art without special instructions and limitations.

Claims

1. A pipeline welding device, characterized in that, The pipeline welding equipment includes: a driving part (10), a transmission part (20), a welding needle (31), a clamping part (40), and a water cooling system (50); the clamping part (40) is used for clamping and fixing the pipe fittings to be welded; wherein, the welding needle (31) is adjustably arranged on the mounting seat (33), and the driving part (10) can drive the mounting seat (33) and the welding needle (31) to make a circumferential movement around the pipe fittings to be welded through the transmission part (20) for welding operations; the coolant of the water cooling system (50) can flow through the cathode plate (60) of the pipeline welding equipment to cool the cathode plate (60).

2. The pipeline welding equipment according to claim 1, characterized in that The water cooling system (50) includes: a liquid inlet pipe (51), a liquid outlet pipe (52), and a coolant channel (53) arranged in the cathode plate (60); wherein, the coolant channel (53) communicates the liquid inlet pipe (51) with the liquid outlet pipe (52).

3. The pipeline welding equipment according to claim 1, wherein The clamping part (40) includes: a clamping body (41) with a first bead air chamber and a second bead air chamber inside, and corresponding first air inlet holes (431) and second air inlet holes (432) are opened; a cylinder bead one (421) is movably arranged in the first bead air chamber, and a cylinder bead two (422) is movably arranged in the second bead air chamber; Wherein, the clamping part (40) further includes a first air inlet pipe (411) and a second air inlet pipe (412), the first air inlet pipe (411) communicates with the first bead air chamber through the first air inlet hole (431); the second air inlet pipe (412) communicates with the second bead air chamber through the second air inlet hole (432); the driving gas can drive the cylinder bead one (421) to extend out of the first bead air chamber through the first air inlet pipe (411); the driving gas can drive the cylinder bead two (422) to extend out of the second bead air chamber through the second air inlet pipe (412).

4. The pipeline welding equipment according to claim 3, characterized in that, The clamping part (40) further includes: a shunt module, and the total air inlet pipe communicates with the first air inlet pipe (411) and the second air inlet pipe (412) through the shunt module; wherein, the electronic control module is electrically connected to the shunt module to realize the synchronous on-off of the first air inlet pipe (411) and the second air inlet pipe (412).

5. The pipeline welding equipment according to claim 1, characterized in that, The pipeline welding equipment further includes: a shielding gas inlet pipe (413) communicating with the welding area of the pipeline welding equipment for delivering shielding gas to the welding area.

6. The pipeline welding equipment according to claim 1, wherein, A clamping opening is arranged on one side of the clamping part (40), and the pipeline welding equipment further includes: a protection door (70) movably arranged outside the clamping part (40) for closing the clamping opening during the welding operation of the pipeline welding equipment to prevent the loss of shielding gas during welding.

7. The pipeline welding equipment according to claim 6, characterized in that, The protective door (70) includes a hinge door (71), and the hinge door (71) is rotatably arranged on the outer side of the clamping part (40) through a hinge shaft (72); wherein, an arc-shaped guiding groove (74) is formed on the clamping part (40), a corresponding guiding slider (73) is arranged on the hinge door (71), and the guiding slider (73) can slide along the arc-shaped guiding groove (74).

8. The pipeline welding equipment according to claim 7, characterized in that The protective door (70) includes two hinge doors (71), and a sealing component is arranged between the two hinge doors (71).

9. The pipeline welding equipment according to claim 8, characterized in that, The sealing component is a magnetic part.

10. The pipeline welding equipment according to claim 1, characterized in that The driving part (10) is arranged parallel to the axis of the pipeline welding equipment.

11. The pipeline welding equipment according to claim 10, characterized in that, The transmission part (20) includes a plurality of meshing transmission gears, and the driving part (10) transmits the driving force to the mounting seat (33) through the plurality of meshing transmission gears.

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