Connector welding device and method for cable protection pipe machining

Abstract

The invention relates to the technical field of cable protection pipe machining, and provides a connector welding device and method for cable protection pipe machining, the connector welding device comprises a base, the left side of the base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a two-way threaded rod, and the rear side of the top of the base is fixedly connected with a supporting plate; the top of the supporting plate is fixedly connected with an air cylinder, the output end of the air cylinder is fixedly connected with a mounting frame, machining mechanisms are arranged on the top of the base and the front side of the mounting frame, rotary welding heads are arranged on the front sides of the machining mechanisms, and lubricating mechanisms are arranged at the two ends of the two-way threaded rod. According to the device, cable protection pipes of different sizes to be machined are fixed and limited through the arranged rotary clamping assembly, the cable protection pipes are driven to rotate during machining so that the cable protection pipes can be automatically turned over during welding, meanwhile, through the arranged conversion assembly, grinding and polishing are automatically conducted after welding is completed, and the machining efficiency is improved. And subsequent procedures are reduced, and one machine has multiple purposes.

Description

Technical Field

[0001] The present invention relates to the technical field of cable protection tube processing, and in particular to an interface welding device and method for cable protection tube processing. Background Art

[0002] Cable protection tube is a tubular material used to protect cables. It is widely used in the power, communication, petroleum, chemical and other industries. The interface welding device for cable protection tube processing is a device used to connect two or more sections of cable protection tubes together to ensure the continuity and integrity of the cable in the pipeline.

[0003] The existing interface welding device for processing cable protection tubes usually needs to grind the burrs on the welding part after welding is completed. Generally, it is done manually using a grinding tool. Workers need to use hand-held grinding tools, such as grinding wheels, grinding discs, etc., to carefully grind the welding joints one by one, which not only increases the workers' workload and wastes working time, but also reduces the practicality of the device. Summary of the invention

[0004] The present invention provides an interface welding device and method for processing a cable protection tube, which solves the problem that the interface welding device in the prior art does not have the function of grinding the interface of the cable protection tube when in use.

[0005] The technical solution of the present invention is as follows: an interface welding device for processing a cable protection tube, comprising a base, a first motor is fixedly connected to the left side of the base, a bidirectional threaded rod is fixedly connected to the output end of the first motor, a support plate is fixedly connected to the rear side of the top of the base, a cylinder is fixedly connected to the top of the support plate, a mounting frame is fixedly connected to the output end of the cylinder, a processing mechanism is arranged on the top of the base and the front side of the mounting frame, a rotary welding head is arranged on the front side of the processing mechanism, and lubrication mechanisms are arranged at both ends of the bidirectional threaded rod; The processing mechanism comprises two rotating clamping assemblies and a conversion assembly. The rotating clamping assemblies are arranged on the top of the base, and the conversion assembly is arranged on the front side of the installation frame.

[0006] Preferably, the rotating clamping assembly includes a mounting plate, the outer side of the mounting plate is slidably connected to the inside of the base, the top of the mounting plate is fixedly connected to a fixing ring, the inner side of the fixing ring is rotatably connected to a rotating ring, the outer circumference of the rotating ring is fixedly connected to a synchronous wheel 1, the outer side of the mounting plate is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a synchronous wheel 2, a synchronous belt is sleeved between the synchronous wheel 1 and the synchronous wheel 2, four equidistantly distributed sliding rods are slidably connected to the inside of the rotating ring, the adjacent ends of the four sliding rods are fixedly connected to a clamping plate, two lead screws are rotatably connected to the inside of the rotating ring, the outer sides of the two lead screws are threadedly connected to movable rings, and a connecting rod is provided between the movable ring and the sliding rod.

[0007] Preferably, the conversion assembly includes an infrared sensor, a controller and a third motor, the infrared sensor is installed at the bottom of the support plate, the controller is installed at the top of the support plate, the third motor is installed inside the installation frame, the output end of the third motor is fixedly connected to a rotating plate, and a grinding head is installed on the top of the rotating plate.

[0008] Preferably, the mounting plate and the bidirectional threaded rod are connected via threads, and a handle is fixedly connected to one end of the lead screw away from the rotating ring.

[0009] Preferably, one end of the connecting rod is rotatably connected to the outside of the movable ring, and the other end of the connecting rod is rotatably connected to an end of the sliding rod away from the clamping plate.

[0010] Preferably, the infrared sensor and the controller are electrically connected.

[0011] Preferably, the lubrication mechanism includes a sleeve and a cam, the sleeve is fixedly connected to the outer side of the base, the inner side of the cam is fixedly connected to the outer side of the two-way threaded rod, an adjusting rod is slidably connected to the inside of the sleeve, one end of the adjusting rod is fixedly connected to a piston, and the other end of the adjusting rod is fixedly connected to a push plate, a spring is arranged inside the sleeve, an oil inlet pipe is fixedly connected to the outer side of the sleeve, an oil drip pipe is fixedly connected to the top of the sleeve, a switch valve is arranged on the outer side of the oil drip pipe, and a one-way valve is arranged on the outer side of the sleeve and the top of the sleeve.

[0012] Preferably, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to the side of the piston away from the adjusting rod.

[0013] Preferably, the piston slides in a sealed manner inside the sleeve, the push plate abuts against the cam, and the oil inlet pipe and the oil drip pipe are both located on the same side of the piston.

[0014] A method for an interface welding device for processing a cable protection tube comprises the following steps: Step 1: Clamping limit; Step 2: Alignment and splicing; Step 3: welding process; Step 4: Cooling and grinding; Step 5: Lubricate regularly.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the cable protection tubes of different sizes to be processed are fixed and limited by the provided rotating clamping assembly, and the cable protection tubes are driven to rotate during processing, so that the cable protection tubes can be automatically turned over during welding, thereby reducing the labor intensity of workers. At the same time, through the provided conversion assembly, grinding and polishing are automatically performed after welding is completed, thereby reducing subsequent processes, which not only improves the processing efficiency, but also ensures that the grinding effect of each welding interface is uniform and consistent, and one machine can be used for multiple purposes.

[0016] 2. In the present invention, the bidirectional threaded rod is lubricated regularly by the lubrication mechanism provided, so as to avoid the bidirectional threaded rod from getting stuck due to friction, dust accumulation or insufficient lubrication during long-term use, thereby causing the two rotating clamping components to move at inconsistent distances, causing the welding position of the cable protection tube to deviate from the rotating welding head, thereby reducing the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 A top view of the external structure of the base of the present invention; Figure 3 A bottom view of the external structure of the conversion assembly of the present invention; Figure 4 A side view of the external structure of the rotary clamping assembly of the present invention; Figure 5 This is a disassembled diagram of the external structure of the rotary clamping assembly of the present invention; Figure 6 It is a side view of the internal structure of the installation frame of the present invention; Figure 7 It is a side view of the internal structure of the lubrication mechanism of the present invention; Figure 8 For the present invention Figure 3 Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1, base; 2, first motor; 3, bidirectional threaded rod; 4, support plate; 5, cylinder; 6, mounting frame; 7, rotary welding head; 8, rotary clamping assembly; 81, mounting plate; 82, fixed ring; 83, rotating ring; 84, synchronous wheel one; 85, second motor; 86, synchronous wheel two; 87, synchronous belt; 88, slide bar; 89, clamping plate; 810, lead screw; 811, movable ring; 812, connecting rod; 813, handle; 9, conversion assembly; 91, infrared sensor; 92, controller; 93, third motor; 94, rotating plate; 95, grinding head; 10, lubrication mechanism; 101, sleeve; 102, cam; 103, adjusting rod; 104, piston; 105, push plate; 106, spring; 107, oil inlet pipe; 108, oil drip pipe; 109, switch valve; 1010, one-way valve. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example 1 like Figure 1 - Figure 8 As shown, this embodiment proposes an interface welding device for processing a cable protection tube, including a base 1, the base 1 is used to install various components, a first motor 2 is fixedly connected to the left side of the base 1, the first motor 2 is used to drive the bidirectional threaded rod 3 to rotate, the output end of the first motor 2 is fixedly connected to the bidirectional threaded rod 3, the bidirectional threaded rod 3 is used to drive two rotating clamping assemblies 8 to move, a support plate 4 is fixedly connected to the rear side of the top of the base 1, the support plate 4 is used to install components such as a cylinder 5, the top of the support plate 4 is fixedly connected to the cylinder 5, the cylinder 5 is used to drive components such as an installation frame 6 to move up and down, the output end of the cylinder 5 is fixedly connected to the installation frame 6, the installation frame 6 is used to connect the cylinder 5, and is also used to install a third motor 93, a processing mechanism is arranged on the top of the base 1 and the front side of the installation frame 6, the processing mechanism is used to process the cable protection tube, a rotary welding head 7 is arranged on the front side of the processing mechanism, the rotary welding head 7 is used to weld the joint of the cable protection tube, and lubrication mechanisms 10 are arranged at both ends of the bidirectional threaded rod 3, the lubrication mechanism is used to lubricate the bidirectional threaded rod 3 regularly; The processing mechanism includes two rotating clamping components 8 and a conversion component 9 . The rotating clamping component 8 is arranged on the top of the base 1 , and the conversion component 9 is arranged on the front side of the installation frame 6 .

[0022] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the rotating clamping assembly 8 includes a mounting plate 81, the outer side of the mounting plate 81 is slidably connected to the inside of the base 1, the mounting plate 81 is used to connect the fixed ring 82, the top of the mounting plate 81 is fixedly connected to the fixed ring 82, the fixed ring 82 is used to provide support for components such as a rotating ring 83, the inner side of the fixed ring 82 is rotatably connected to the rotating ring 83, the rotating ring 83 is used to connect components such as a synchronous wheel 1 84, the outer periphery of the rotating ring 83 is fixedly connected to a synchronous wheel 1 84, the synchronous wheel 1 84 is provided with a synchronous belt 87 to connect with a synchronous wheel 2 86, the outer side of the mounting plate 81 is fixedly connected to a second motor 85, the second motor 85 is used to drive the synchronous wheel 2 86, the output end of the second motor 85 is fixedly connected to the synchronous wheel 2 86, the synchronous wheel 2 86 is used to connect the second motor 85 and the synchronous belt 87, a synchronous belt 87 is sleeved between the synchronous wheel 1 84 and the synchronous wheel 2 86, and the synchronous belt 87 is used to transmit the power of the motor 85 to the synchronous wheel 84. The rotating ring 83 is slidably connected inside with four equidistantly distributed sliding rods 88. The sliding rod 88 is used to connect the clamping plate 89 and the movable ring 811. The four sliding rods 88 are fixedly connected to the clamping plate 89 at one end. The clamping plate 89 is used to fix the cable protection tube. At the same time, a protrusion is provided on the surface of the clamping plate 89 that contacts the cable protection tube to increase the friction between the cable protection tube and the cable protection tube. The rotating ring 83 is rotatably connected with two lead screws 810. The lead screws 810 are used to drive the movable ring 811 to move. The outer sides of the two lead screws 810 are threadedly connected with movable rings 811. The movable ring 811 is used to connect the lead screws 810 and the connecting rod 812. A connecting rod 812 is provided between the movable ring 811 and the sliding rod 88. The connecting rod 812 is used to convert the movement of the movable ring 811 into the movement of the sliding rod 88.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 8 As shown, the conversion component 9 includes an infrared sensor 91, a controller 92 and a third motor 93. The infrared sensor 91 is installed at the bottom of the support plate 4. The infrared sensor 91 is used to monitor the temperature at the interface of the cable protection tube. The controller 92 is installed on the top of the support plate 4. The controller 92 is used to receive the signal transmitted by the infrared sensor 91 and start and shut down the third motor 93. The third motor 93 is installed inside the installation frame 6. The third motor 93 is used to drive the rotating plate 94 to rotate. The output end of the third motor 93 is fixedly connected to the rotating plate 94. The rotating plate 94 is used to install the rotating welding head 7 and the grinding head 95. The grinding head 95 is installed on the top of the rotating plate 94. The grinding head 95 is used to grind the interface of the welded cable protection tube.

[0024] like Figure 2 , Figure 3 , Figure 5 and Figure 8As shown, the mounting plate 81 and the bidirectional threaded rod 3 are connected by threads, so that the rotation of the bidirectional threaded rod 3 can drive the mounting plate 81 to move, and the lead screw 810 is fixedly connected to a handle 813 at one end away from the rotating ring 83, and the handle 813 provides a holding point for the operator. One end of the connecting rod 812 is rotatably connected to the outside of the movable ring 811, and the other end of the connecting rod 812 is rotatably connected to the end of the sliding rod 88 away from the clamping plate 89. The connecting rod 812 is used to transmit the movement of the movable ring 811 to the sliding rod 88, and the infrared sensor 91 and the controller 92 are electrically connected, so that the infrared sensor 91 can transmit the signal to the controller 92.

[0025] Example 2 like Figure 1 , Figure 2 and Figure 7 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the lubrication mechanism 10 includes a sleeve 101 and a cam 102. The sleeve 101 is fixedly connected to the outside of the base 1. The sleeve 101 is used to install components such as a piston 104. The inner side of the cam 102 is fixedly connected to the outer side of the bidirectional threaded rod 3. The cam 102 is used to push the push plate 105. An adjusting rod 103 is slidably connected inside the sleeve 101. The adjusting rod 103 is used to connect the push plate 105 and the piston 104. One end of the adjusting rod 103 is fixedly connected to the piston 104. The piston 104 is used to connect the spring 106 and the adjusting rod 103. The other end of the adjusting rod 103 is fixedly connected to the push plate 105. The push plate 105 will transfer the force it receives to the adjusting rod 103. A spring 106 is arranged inside the sleeve 101. The spring 106 provides elastic force for the piston 104. An oil inlet pipe 107 is fixedly connected to the outside of the sleeve 101. The oil inlet pipe 107 is used to extract external lubricating oil. An oil dripping pipe 108 is fixedly connected to the top of the sleeve 101. The oil dripping pipe 108 is used to transport the lubricating oil to the two-way threaded rod 3. A switch valve 109 is arranged on the outside of the oil dripping pipe 108. The switch valve 109 is used to close the oil dripping pipe 108. A one-way valve 1010 is arranged on the outside of the sleeve 101 and on the top of the sleeve 101. The one-way valve 1010 allows the lubricating oil to only enter but not exit, or only exit but not enter.

[0026] like Figure 1 and Figure 7 As shown, one end of the spring 106 is fixedly connected to the inner wall of the sleeve 101, and the other end of the spring 106 is fixedly connected to the side of the piston 104 away from the adjusting rod 103. The spring 106 provides elastic force for the piston 104 to return to its original position. The piston 104 and the inner sealing slide of the sleeve 101 enable the piston 104 to slide stably. The push plate 105 abuts against the cam 102, so that the cam 102 can intermittently push the push plate 105. The oil inlet pipe 108 and the oil drip pipe 107 are both located on the same side of the piston 104 to ensure the smooth flow of the lubricating oil during the transportation process.

[0027] Example 3 like Figure 1-Figure 8 As shown, a method for processing an interface welding device for a cable protection tube comprises the following steps: Step 1: Clamping and limiting, adjusting and clamping the rotating clamping assembly 8 according to the size of the cable protection tube to be produced; Step 2: Align and splice, by driving the first motor 2 to drive the bidirectional threaded rod 3 to rotate, the bidirectional threaded rod 3 drives the cable protection tubes in the two rotating clamping assemblies 8 to move closer to the middle and dock; Step 3: Welding processing, the cylinder 5 drives the installation frame 6 and the conversion assembly 9 to move downward, and then drives the rotating welding head 7 to weld the joint of the cable protection tube; Step 4: Cooling and grinding. The temperature of the welding part of the cable protection tube is detected in real time by the infrared sensor 91 in the conversion component 9. When the temperature is completely reduced, the infrared sensor 91 transmits a signal to the controller 92. The controller 92 starts the third motor 93. The third motor 93 drives the rotating plate 94 to rotate, aligns the grinding head 95 with the weld, and grinds the weld with the cooperation of the rotating clamping component 8. Step 5: Lubricate regularly. When the bidirectional threaded rod 3 becomes stuck, the bidirectional threaded rod 3 is lubricated regularly through the provided lubrication mechanism 10 .

[0028] The working principle of the technical solution provided by the present invention is as follows: when in use, a rotating clamping assembly 8 is provided to fix and limit the cable protection tube to be processed, and then the first motor 2 is started to drive the bidirectional threaded rod 3 to rotate. The rotation of the bidirectional threaded rod 3 drives the two rotating clamping assemblies 8 to move toward the middle and dock. After the docking is completed, the cylinder 5 is started to drive the conversion assembly 9 and the rotating welding head 7 to move downward to weld the interface of the cable protection tube. The cable protection tube is welded in all directions through the cooperation of the rotating clamping assembly 8. After welding is completed, the conversion assembly 9 automatically grinds and polishes it after welding is completed, thereby reducing subsequent processes and improving processing efficiency.

[0029] When the rotating clamping assembly 8 is in use, the worker passes the cable protection tube between the four clamping plates 89, and then rotates the two lead screws 810 to drive the movable ring 811 to move toward the direction close to the rotating ring 83, so that the movement of the movable ring 811 will push the sliding bar 88 toward the center point of the rotating sleeve by pulling the connecting rod 812, and then the four sliding bars 88 will bring the four clamping plates 89 close to and clamp the cable protection tube at the center of the rotating ring 83, thereby achieving clamping and limiting of cable protection tubes of different sizes, and then welding work can be started. When it is necessary to adjust the welding surface of the cable protection tube, start the second motor 85 to drive the synchronous wheel 2 86 to rotate, so that the synchronous wheel 2 86 drives the rotating ring 83 to rotate inside the fixed ring 82 under the action of the synchronous belt 87 and the synchronous wheel 1 84, and then the four clamping plates 89 drive the cable protection tube to rotate, thereby achieving all-round automatic turning over of the cable protection tube and reducing the labor intensity of the workers.

[0030] When the conversion component 9 is in use, the temperature of the weld of the cable protection tube after welding is monitored in real time through the infrared sensor 91. When it is detected that the temperature has dropped completely, the infrared sensor 91 will transmit a signal to the controller 92. The controller 92 will start the third motor 93, drive the rotating plate 94 to rotate, align the grinding head 95 with the weld and grind it.

[0031] When the two-way threaded rod 3 needs to be lubricated, the switch valve 109 on the oil dripping pipe 108 is opened to make the oil dripping pipe 108 in a smooth state. The two-way threaded rod 3 rotates while driving the cam 102 to rotate synchronously. When the cam 102 and the push plate 105 abut, the push plate 105 will be squeezed, and the push plate 105 will drive the adjusting rod 103 to push the piston 104 and squeeze the spring 106. At this time, the inside of the sleeve 101 is in a negative pressure state, and the external lubricating oil will enter the inside of the sleeve 101 from the oil inlet pipe 107. When the cam 102 does not abut against the push plate 105, due to the lack of a limit on the side of the push plate 105 away from the adjusting rod 103, the spring 106 is reset, pushing the piston 104 outward, and the piston The movement of 104 causes a pressure change on one side of the sleeve 101 that is connected to the oil inlet pipe 107 and the oil drip pipe 108. At this time, the lubricating oil in the sleeve 101 will be squeezed by the piston 104 into the oil drip pipe 108 and transported to the two-way threaded rod 3 along the oil drip pipe 108. The rotation of the two-way threaded rod 3 drives the mounting plate 81 to move and apply the lubricating oil to the entire two-way threaded rod 3. After lubrication is completed, the switch valve 109 is closed, and the lubricating mechanism 10 stops running. At this time, the inside of the oil drip pipe 108 is sealed, and the lubricating oil cannot be discharged, which makes it impossible for the spring 106 to push the piston 104 to move, thereby ensuring that the piston 104 always squeezes the spring 106 and ensuring that the rotation of the cam 102 is not affected.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An interface welding device for processing a cable protection tube, characterized in that: The invention comprises a base (1), a first motor (2) being fixedly connected to the left side of the base (1), a bidirectional threaded rod (3) being fixedly connected to the output end of the first motor (2), a support plate (4) being fixedly connected to the rear side of the top of the base (1), a cylinder (5) being fixedly connected to the top of the support plate (4), a mounting frame (6) being fixedly connected to the output end of the cylinder (5), a processing mechanism being arranged at the top of the base (1) and the front side of the mounting frame (6), a rotary welding head (7) being arranged at the front side of the processing mechanism, and lubrication mechanisms (10) being arranged at both ends of the bidirectional threaded rod (3); The processing mechanism comprises two rotating clamping assemblies (8) and a conversion assembly (9), wherein the rotating clamping assembly (8) is arranged on the top of the base (1), and the conversion assembly (9) is arranged on the front side of the installation frame (6).

2. The interface welding device for processing a cable protection tube according to claim 1, characterized in that: The rotary clamping assembly (8) comprises a mounting plate (81), the outer side of the mounting plate (81) is slidably connected to the inside of the base (1), a fixing ring (82) is fixedly connected to the top of the mounting plate (81), a rotating ring (83) is rotatably connected to the inner side of the fixing ring (82), a synchronous wheel 1 (84) is fixedly connected to the outer periphery of the rotating ring (83), a second motor (85) is fixedly connected to the outer side of the mounting plate (81), a synchronous wheel 2 (86) is fixedly connected to the output end of the second motor (85), and the synchronous wheel 1 (84) is fixedly connected to the outer side of the rotating ring (83). A synchronous belt (87) is sleeved between the step wheel 1 (84) and the synchronous wheel 2 (86); four equally spaced sliding rods (88) are slidably connected inside the rotating ring (83); a clamping plate (89) is fixedly connected to one end of each of the four sliding rods (88); two lead screws (810) are rotatably connected inside the rotating ring (83); a movable ring (811) is threadedly connected to the outer sides of the two lead screws (810); and a connecting rod (812) is provided between the movable ring (811) and the sliding rod (88).

3. The interface welding device for processing a cable protection tube according to claim 1, characterized in that: The conversion assembly (9) comprises an infrared sensor (91), a controller (92) and a third motor (93); the infrared sensor (91) is mounted at the bottom of the support plate (4); the controller (92) is mounted at the top of the support plate (4); the third motor (93) is mounted inside the mounting frame (6); an output end of the third motor (93) is fixedly connected to a rotating plate (94); and a grinding head (95) is mounted on the top of the rotating plate (94).

4. The interface welding device for processing a cable protection tube according to claim 2, characterized in that: The mounting plate (81) and the bidirectional threaded rod (3) are connected via threads, and a handle (813) is fixedly connected to one end of the lead screw (810) away from the rotating ring (83).

5. The interface welding device for processing a cable protection tube according to claim 2, characterized in that: One end of the connecting rod (812) is rotatably connected to the outside of the movable ring (811), and the other end of the connecting rod (812) is rotatably connected to an end of the sliding rod (88) away from the clamping plate (89).

6. The interface welding device for processing a cable protection tube according to claim 3, characterized in that: The infrared sensor (91) and the controller (92) are electrically connected.

7. The interface welding device for processing a cable protection tube according to claim 1, characterized in that: The lubrication mechanism (10) comprises a sleeve (101) and a cam (102); the sleeve (101) is fixedly connected to the outside of the base (1); the inside of the cam (102) is fixedly connected to the outside of the bidirectional threaded rod (3); an adjusting rod (103) is slidably connected inside the sleeve (101); one end of the adjusting rod (103) is fixedly connected to a piston (104); the other end of the adjusting rod (103) is fixedly connected to a push plate (105); a spring (106) is arranged inside the sleeve (101); an oil inlet pipe (107) is fixedly connected to the outside of the sleeve (101); an oil drip pipe (108) is fixedly connected to the top of the sleeve (101); a switch valve (109) is arranged on the outside of the oil drip pipe (108); and a one-way valve (1010) is arranged on the outside of the sleeve (101) and on the top of the sleeve (101).

8. The interface welding device for processing a cable protection tube according to claim 7, characterized in that: One end of the spring (106) is fixedly connected to the inner wall of the sleeve (101), and the other end of the spring (106) is fixedly connected to a side of the piston (104) away from the adjustment rod (103).

9. The interface welding device for processing a cable protection tube according to claim 7, characterized in that: The piston (104) slides in a sealed manner inside the sleeve (101), the push plate (105) abuts against the cam (102), and the oil inlet pipe (108) and the oil drip pipe (107) are both located on the same side of the piston (104).

10. A method for welding an interface for processing a cable protection tube, characterized in that: The following steps are involved: Step 1: Clamping limit; Step 2: Alignment and splicing; Step 3: welding process; Step 4: Cooling and grinding; Step 5: Lubricate regularly.

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