Semi-automatic flame welding device for oil outlet pipe

Abstract

The embodiment of the invention provides a semi-automatic flame welding device for an oil outlet pipe, and relates to the technical field of oil outlet pipe machining. The semi-automatic flame welding device for the oil outlet pipe comprises an assembling platform, flame welding mechanisms are symmetrically and movably installed at the front end and the rear end of the top of the assembling platform, welding platforms are symmetrically arranged at the left end and the right end of the top of the assembling platform, and welding sockets are fixedly installed at the opposite ends of the tops of the two welding platforms through bolts; the welding socket is used for installing an oil outlet pipe joint; wherein the flame welding mechanism comprises a mounting base, a welding machine is mounted at the top of the mounting base, a welding gun is mounted at the output end of the welding machine, and the flame spraying end of the welding gun is obliquely arranged and faces the inserting position of the oil outlet pipe connector and the oil outlet pipe. According to the scheme, automatic coating of soldering flux at the welding position of the oil outlet pipe is achieved through the soldering flux coating assembly, manual operation is replaced, the soldering flux coating uniformity and the operation efficiency are effectively improved, soldering flux waste and the production cost are reduced, and the subsequent welding quality is guaranteed.

Description

Technical Field

[0001] This application relates to the field of oil pipe processing technology, and more specifically, to a semi-automatic flame welding device for oil pipes. Background Technology

[0002] In related technologies, the oil outlet pipe, as a key component of the fuel supply system and hydraulic transmission system, directly determines the system's sealing performance and operational safety through the welding quality of its joints and pipe body. Flame welding is widely used in oil outlet pipe manufacturing due to its easy control of heat input and applicability to metal pipe welding. Flux coating is a crucial pre-process in the flame welding of oil outlet pipes, and its coating quality and efficiency are vital to the subsequent welding effect. However, there are still significant problems in the flux coating process in current related technologies.

[0003] In traditional flame welding of oil outlet pipes, flux application relies entirely on manual operation. Workers must use a brush to apply flux to the welding area between the oil outlet pipe joint and the pipe body. This method has significant drawbacks: Firstly, it is difficult to control the uniformity of manual application. If the flux coating is too thick, it can easily lead to porosity during welding; if it is too thin, it cannot effectively remove oxides from the welding surface and cannot prevent high-temperature oxidation, directly affecting the sealing and strength of the weld. Secondly, manual application is inefficient. The application process must be carried out in separate steps from the welding process, and differences in worker skill levels will further lengthen the operation cycle, making it unsuitable for mass production needs. In addition, excess flux is easily dripped and wasted, increasing production costs.

[0004] Even though some companies have adopted semi-automatic welding equipment to improve efficiency, their functional design still has significant shortcomings. Most semi-automatic welding equipment only focuses on the mechanization of welding actions and is not equipped with a dedicated flux coating mechanism, meaning the flux coating process still relies on manual labor. This means that the problems of unstable quality, low efficiency, and high cost caused by manual coating persist, becoming a key bottleneck restricting the optimization and upgrading of oil pipe welding processes. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a semi-automatic flame welding device for oil outlet pipes, which automatically applies flux to the welding joint of the oil outlet pipe through a flux coating component, replacing manual operation, effectively improving the uniformity of flux coating and operating efficiency, reducing flux waste and production costs, and ensuring the quality of subsequent welding.

[0006] According to an embodiment of this application, a semi-automatic flame welding device for an oil outlet pipe includes an assembly platform. Flame welding mechanisms are symmetrically and movably installed at the front and rear ends of the top of the assembly platform, and welding platforms are symmetrically arranged at the left and right ends of the top of the assembly platform. Welding sockets are fastened to one end of the top of the two welding platforms by bolts. The welding sockets are used to install oil outlet pipe joints. The flame welding mechanism includes a mounting base, and a welding machine is mounted on the top of the mounting base. The output end of the welding machine is equipped with a welding torch, and the flame-spraying end of the welding torch is inclined and faces the insertion point of the oil outlet pipe joint and the oil outlet pipe. Meanwhile, a rotatable shaft is provided on one side of the welding platform and adjacent to the welding socket. A connecting plate is connected to the surface of the shaft, and a flux coating component is installed at one end of the connecting plate. The flux coating component is used to apply flux to the welding joint between the oil pipe and the oil pipe, remove oxides from the welding surface of the oil pipe, prevent high-temperature oxidation, and promote the flow of the filler metal.

[0007] According to some embodiments of this application, a slide is horizontally mounted on the top of the assembly platform, a slide plate is mounted on the output end of the slide, a material collection frame is erected on the top of the assembly platform, a support is installed inside the material collection frame, and a welding platform is mounted on the top of the support.

[0008] According to some embodiments of this application, a bearing seat is fitted on the outer side of the rotating shaft, and the two shaft ends of the rotating shaft are movably mounted on the surface of the bearing seat via bearings; A drive motor is bolted to one side of the support base.

[0009] A linear drive assembly is installed on one side of the welding platform, which can drive the bearing seat to move linearly.

[0010] According to some embodiments of this application, a flux collection bin is symmetrically arranged on the top of the collection frame along the axis, and a collection chamber is formed on the inner surface of the flux collection bin, and flux is stored in the collection chamber. A receiving frame is placed on the top of the inner side of the flux collection chamber, and a sponge is installed at an angle on the top of the inner cavity of the collection chamber, with one end of the sponge extending to the outside of the flux collection chamber.

[0011] According to some embodiments of this application, the flux coating assembly is a coating mechanism one. The coating mechanism one includes an arc-shaped frame connected to the connecting plate and an arc-shaped plate disposed within the arc-shaped frame. The inner surface of the arc-shaped frame is provided with absorbent cotton one, and the arc-shaped plate can rotate around the arc-shaped frame as the center to drive the absorbent cotton one to rotate. The top and bottom of the arc-shaped plate are both connected to stabilizing arc plates, and multiple rotating rods are symmetrically arranged at both ends of the arc-shaped frame cavity wall, with the rotating rods sliding in contact with the stabilizing arc plates. According to some embodiments of this application, the top of the arc-shaped frame is fastened to a cover plate by bolts, and one side of the absorbent cotton is connected to a connecting slide plate, wherein the surface of the connecting slide plate extends through the inner cavity of the arc-shaped frame and is connected to the arc-shaped plate. According to some embodiments of this application, a motor drive component is fastened to the top of the cover plate by bolts. The output end of the motor drive component extends through to the bottom of the cover plate and is connected to a rotating shaft. Both ends of the arc-shaped frame sidewall are vertically mounted with rotating shafts two via bearings. Transmission wheels are sleeved on the surfaces of rotating shaft one and the two rotating shafts two. The multiple transmission wheels are connected by a transmission belt.

[0012] According to some embodiments of this application, a toggle disc is fitted at the bottom of the second surface of the rotating shaft, and both the outer surface of the toggle disc and the surface of the arc plate are treated with anti-slip treatment, and the surface of the toggle disc extends into the inner cavity of the arc frame and contacts the surface of the arc plate.

[0013] According to some embodiments of this application, the flux coating assembly is a coating mechanism two. The coating mechanism two includes a linear slide rail installed on the top of the connecting plate, and linear sliders are slidably arranged at both ends of the surface of the linear slide rail. One end of the linear slider is connected to a push plate through a rotating shaft, and the other ends of the two push plates are jointly installed with a push block through a rotating shaft. The push block is pushed by a telescopic rod installed on the surface of the connecting plate.

[0014] According to some embodiments of this application, one end of the linear slider is connected to a semicircular plate, and the inner side of the semicircular plate is connected to a second absorbent cotton, the bottom of which is a flux-coated surface.

[0015] The beneficial effects of this application are as follows: In this solution, the worker first installs the oil outlet pipe connector onto the welding socket of the welding platform. After inserting the connector into one end of the oil outlet pipe, it is snapped into the positioning socket to complete the positioning. Then, the linear drive unit moves the carrier to the flux collection chamber. The drive motor drives the rotating shaft to flip the flux coating component on the connecting plate, allowing it to contact and adhere flux to the sponge component in the flux collection chamber. The guide cotton plate continuously supplies flux to the sponge component. After the component resets, flux is applied to the welding area. Next, the slide block drives the sliding plate to move the mounting base, allowing the welding machine on the mounting base to perform flame welding by aiming the welding torch at the welding area. Because the support has two sets of welding platforms and welding sockets, the oil outlet pipe and connector can be pre-installed on the other set while welding one set of parts, enabling alternating operations. During welding, the adjustable mounting bracket on the support fixes the welding torch to ensure accurate welding position. After welding is completed, the linear drive unit can move the carrier back to its initial position, and the slide block drives the flame welding mechanism to reset, completing one welding cycle.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the semi-automatic flame welding device for the oil outlet pipe according to an embodiment of this application; Figure 2 This is a second overall structural schematic diagram of the semi-automatic flame welding device for the oil outlet pipe according to an embodiment of this application; Figure 3 This is a schematic diagram of the assembly of a welding machine and welding torch according to an embodiment of this application; Figure 4 This is a structural assembly diagram of a welding platform, welding socket, and positioning socket according to an embodiment of this application; Figure 5 This is a schematic diagram of the structural assembly of the support base, rotating shaft, drive motor, connecting plate and linear drive assembly according to the embodiments of this application; Figure 6 This is an exploded perspective view of a coating mechanism according to an embodiment of this application; Figure 7 This is a top view schematic diagram of a partial structure of a coating mechanism according to an embodiment of this application; Figure 8 This is an exploded perspective view of a partial structure of the coating mechanism according to an embodiment of this application; Figure 9 This is a cross-sectional schematic diagram of the internal structure of the flux collection chamber according to an embodiment of this application; Figure 10 This is the third overall structural schematic diagram of the semi-automatic flame welding device for the oil outlet pipe according to an embodiment of this application; Figure 11 This is a three-dimensional schematic diagram of the coating mechanism 2 installed on the welding platform according to an embodiment of this application; Figure 12 This is a partial structural schematic diagram of the welding platform according to an embodiment of this application; Figure 13 According to the embodiments of this application Figure 12 Enlarged diagram of point A in the middle.

[0019] Icons: 100, Body; 110, Assembly Platform; 120, Slide; 130, Slide Plate; 140, Support; 150, Collection Frame; 200, Mounting Base; 210, Welding Machine; 220, Bracket; 230, Welding Torch; 300, Welding Platform; 310, Welding Socket; 320, Positioning Socket; 400, Flux Collection Chamber; 401, Collection Chamber; 410, Receiving Frame; 420, Guide Cotton Plate; 430, Sponge Component; 500, Bearing Base; 510, Rotating Shaft; 520, Drive Motor; 530, Connecting Plate; 540, Linear Drive Assembly; 600, Coating Machine Component 1; 610, Arc-shaped frame; 611, Cover plate; 620, Arc-shaped plate; 621, Stabilizing arc plate; 622, Rotating rod; 630, Absorbent cotton I; 631, Connecting slide plate; 640, Motor drive component; 641, Rotating shaft I; 642, Rotating shaft II; 643, Transmission belt; 644, Guide roller; 645, Transmission wheel; 650, Actuating disc; 700, Coating mechanism II; 710, Linear slide rail; 720, Linear slider; 730, Push plate; 740, Push block; 750, Limiting seat; 760, Telescopic rod; 770, Semicircular plate; 780, Absorbent cotton II. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0021] The semi-automatic flame welding apparatus for the oil outlet pipe according to an embodiment of this application is described below with reference to the accompanying drawings.

[0022] like Figures 1-13 As shown in the embodiment of this application, a semi-automatic flame welding device for an oil outlet pipe includes an assembly platform 110 for supporting parts in the semi-automatic flame welding device for an oil outlet pipe. The bottom of the assembly platform 110 is provided with a body 100, which supports the assembly platform 110 and can store the equipment used in the semi-automatic flame welding device for an oil outlet pipe. Specifically, the assembly platform 110 is fastened to the top of the body 100 by bolts.

[0023] A slide block 120 is horizontally mounted on the top of the assembly platform 110. A slide plate 130 is mounted on the output end of the slide block 120. A material collection frame 150 is mounted on the top of the assembly platform 110. A support 140 is installed inside the material collection frame 150. The welding platform 300 is mounted on the top of the support 140. The other end of the slide plate 130 is connected to the opposite side of the mounting base 200. Therefore, when the slide block 120 controls the movement of the slide plate 130, it can drive the mounting base 200 to move. In this way, the slide block 120 and the slide plate 130 work together to drive the flame welding mechanism to move to the welding socket 310 and flame weld the oil outlet pipe joint and oil outlet pipe inserted on its surface. This scheme sets up two sets of welding platforms 300 and welding sockets 310, which are distributed at both ends of the top of the support 140. When the flame welding mechanism is welding the oil outlet pipe joint and oil outlet pipe on the adjacent welding socket 310, the worker can pre-assemble the oil outlet pipe joint and oil outlet pipe on the other set of welding sockets 310 so that after the oil outlet pipe joint and oil outlet pipe at one location are welded, the flame welding mechanism can be used to weld the oil outlet pipe joint and oil outlet pipe at another location immediately.

[0024] Specifically, the slide 120 can be a linear motor, which is a transmission device that directly converts electrical energy into linear motion mechanical energy, so as to push the slide plate 130 to drive the mounting base 200 to move horizontally and adjust the position of the flame welding mechanism.

[0025] Flame welding mechanisms are symmetrically and movably installed at the front and rear ends of the top of the assembly platform 110. The flame welding mechanisms are slidably set above the assembly platform 110. Welding platforms 300 are symmetrically arranged at the left and right ends of the top of the assembly platform 110. Welding sockets 310 are fastened to the opposite ends of the top of the two welding platforms 300 by bolts. Welding sockets 310 are used to install oil outlet pipe joints. Specifically, such as Figure 4 As shown, the surface of the top of the welding platform 300 is equipped with multiple positioning sockets 320. When one end of the oil outlet pipe is inserted into the oil outlet pipe connector, its surface can be locked into the positioning socket 320. The positioning socket 320 is used to position the entire platform to prevent it from shaking and affecting subsequent processing.

[0026] Among them, such as Figures 1 to 3 As shown, there are at least two flame welding mechanisms, which are distributed at the front and rear ends of the top of the assembly platform 110. The flame welding mechanism includes a mounting base 200, and a welding machine 210 is mounted on the top of the mounting base 200. A welding torch 230 is mounted on the output end of the welding machine 210. The welding torch 230 is mounted on the top of the mounting base 200, and the flame-spraying end of the welding torch 230 is inclined and faces the insertion point of the oil outlet pipe joint and the oil outlet pipe. Specifically, such as Figure 3 As shown, a bracket 220 is mounted on the top of the mounting base 200, and a mounting frame is adjustablely mounted on the surface of the bracket 220. The mounting frame is used to support the welding torch 230. The adjustable mounting frame is mounted on the surface of the bracket 220 by bolts and two semi-circular cover plates. The two semi-circular cover plates are in contact with the surface of the bracket 220, and the bolts are screwed into the lugs of the two semi-circular cover plates. Nuts are threaded to both ends of the outer surface of the bolts. The three parts work together to install the adjustable mounting frame on the bracket 220, and the assembly position of the welding torch 230 can be adjusted by adjusting the adjustable mounting frame.

[0027] Meanwhile, a rotatable pivot 510 is provided on one side of the welding platform 300 and adjacent to the welding socket 310, and a connecting plate 530 is connected to the surface of the pivot 510. A bearing seat 500 is fitted on the outer side of the pivot 510, and the bearing seat 500 is U-shaped, and the two shaft ends of the pivot 510 are movably mounted on the surface of the bearing seat 500 through bearings; Specifically, such as Figure 5 As shown, a drive motor 520 is fastened to one side of the support 500 by bolts, and the output end of the drive motor 520 passes through the support 500 and is connected to the output end of the rotating shaft 510. Thus, when the drive motor 520 is working, it can rotate the rotating shaft 510, thereby driving the connecting plate 530 to flip.

[0028] Specifically, a linear drive assembly 540 is installed on one side of the welding platform 300. The linear drive assembly 540 can drive the bearing seat 500 to move linearly. The linear drive assembly 540 consists of a motor, a lead screw, and a wire plate. The motor is installed on one side of the surface of the welding platform 300, and the output end of the motor is connected to the lead screw. The lead screw is movably installed in a slot cavity opened on one side of the welding platform 300 through a bearing. The wire plate is threaded onto the surface of the lead screw, and the surface of the wire plate slides in contact with the inner wall of the slot cavity of the welding platform 300. At the same time, one side of the wire plate extends to the outside of the welding platform 300 and connects to the surface of the bearing seat 500. Therefore, when the motor works and drives the lead screw to rotate, it can drive the wire plate to move linearly, thereby driving the bearing seat 500 to move until the bearing seat 500 is moved to the flux collection chamber 400.

[0029] Flux collection bins 400 are symmetrically arranged along the axis at the top of the collection frame 150. There are at least two flux collection bins 400. Figure 4 As shown, the flux collection bin 400 is located in the collection frame 150 and is close to the side of the welding socket 310; the flux coating assembly adheres the flux stored in the flux collection bin 400 and coats the flux at the interface between the oil outlet pipe structure and the oil outlet pipe.

[0030] Specifically, such as Figure 4 and Figure 9 As shown, a collection chamber 401 is formed on the inner surface of the flux collection bin 400, and flux is stored in the collection chamber 401. Furthermore, an inlet pipe and an outlet pipe are respectively connected to the top and bottom sides of the flux collection bin 400. Both the inlet pipe and the outlet pipe are connected to the inner cavity of the collection chamber 401. The inlet pipe and the outlet pipe are used to inject flux into the collection chamber 401 and to discharge flux, respectively. A collection frame 410 is placed on the top of the inner side of the flux collection chamber 400. The collection frame 410 can collect the flux dripping from the sponge 430. The sponge 430 is installed at an angle on the top of the inner cavity of the collection chamber 401. One end of the sponge 430 extends through to the outside of the flux collection chamber 400. Specifically, the sponge component 430 is made of water-absorbing material, specifically a water-absorbing sponge.

[0031] In this embodiment, a guide cotton plate 420 is connected to one side of the sponge 430, and the other end of the guide cotton plate 420 extends to the bottom of the inner cavity of the collection chamber 401. The guide cotton plate 420 absorbs the liquid in the collection chamber 401 and guides it to the sponge 430. In this embodiment, the inner cavity of the collection chamber 401 can be filled with flux. Therefore, before flame welding the oil outlet pipe, to apply flux to the connection between the oil outlet pipe and the oil outlet pipe joint, it is only necessary to rotate the rotating shaft 510 by the drive motor 520. The rotating shaft 510 drives the flux coating component to rotate so that its coating surface is tilted upward. Then, the linear drive group 540 moves the flux coating component into the flux collection chamber 400. At this time, the flux coating surface of the flux coating component slides into contact with the sponge 430, and the flux adhering to the surface of the sponge 430 is applied to the coating surface of the flux coating component. Then, the flux coating component is controlled to reset, and flux is applied to the weld joint between the oil outlet pipe joint and the oil outlet pipe.

[0032] One end of the connecting plate 530 is equipped with a flux coating assembly, which is used to apply flux to the weld between the oil outlet pipe joint and the oil outlet pipe, remove oxides from the weld surface of the oil pipe, prevent high-temperature oxidation, promote the flow of the filler metal, and ensure reliable flame welding seal.

[0033] like Figure 1 , Figure 2 , Figures 4 to 8 As shown, this is a first embodiment of the flux coating assembly. Specifically, the flux coating assembly is a coating mechanism 600. The coating mechanism 600 includes an arc-shaped frame 610 connected to the connecting plate 530 and an arc-shaped plate 620 disposed within the arc-shaped frame 610. The inner surface of the arc-shaped frame 610 is provided with absorbent cotton 630, and the arc-shaped plate 620 can rotate around the arc-shaped frame 610 as the center to drive the absorbent cotton 630 to rotate. Specifically, the top and bottom of the arc plate 620 are connected to the stabilizing arc plate 621, and multiple rotating rods 622 are symmetrically arranged at the upper and lower ends of the cavity wall of the arc frame 610. The rotating rods 622 slide in contact with the stabilizing arc plate 621. The top of the arc frame 610 is fastened to the cover plate 611 by bolts, and the side of the absorbent cotton 630 is connected to the connecting slide plate 631, wherein the surface of the connecting slide plate 631 extends into the inner cavity of the arc frame 610 and is connected to the arc plate 620. like Figure 6 and Figure 7 As shown, a motor drive unit 640 is fastened to the top of the cover plate 611 by bolts. The output end of the motor drive unit 640 extends through to the bottom of the cover plate 611 and is connected to a rotating shaft 641. Both ends of the side wall of the arc frame 610 are vertically mounted with rotating shafts 642 via bearings. Transmission wheels 645 are sleeved on the surfaces of the rotating shaft 641 and the two rotating shafts 642. The multiple transmission wheels 645 are connected by a transmission belt 643. Specifically, the transmission wheel 645 is a synchronous pulley, and the transmission belt 643 is a synchronous belt. The synchronous belt is meshed on the surface of multiple transmission wheels 645. When the motor drive 640 drives the rotating shaft 641 to rotate, the adjacent transmission wheels 645 can push the transmission belt 643 to drive the transmission belt 643 on the rotating shaft 642 to rotate.

[0034] The cover plate 611 has multiple guide rollers 644 installed through it. The surface of the guide rollers 644 contacts the surface of the transmission belt 643 and is used to guide the transmission belt 643 and change its movement trajectory so that the transmission belt 643 is stably fitted into multiple transmission wheels 645.

[0035] A toggle disc 650 is fitted on the bottom of the surface of the rotating shaft 642. The outer surface of the toggle disc 650 and the surface of the arc plate 620 are both treated with anti-slip treatment. The surface of the toggle disc 650 extends into the inner cavity of the arc frame 610 and contacts the surface of the arc plate 620. For example, an anti-slip rubber sleeve can be fitted onto the surface of the dial 650, and an anti-slip rubber pad can be adhered to the side wall of the curved plate 620, thereby increasing the anti-slip properties of the contact surface between the dial 650 and the curved plate 620; or anti-slip textures can be formed on the surfaces of the dial 650 and the curved plate 620, thereby increasing the anti-slip properties between the dial 650 and the curved plate 620.

[0036] Therefore, when the motor drive unit 640 rotates, it can drive the two rotating shafts 642 to move through the rotating shaft 641, the transmission belt 643 and the transmission wheel 645, which in turn drives the actuating disc 650 to rotate. The rotation of the actuating disc 650 causes the arc plate 620 to rotate around the center of the arc frame 610. At the same time, the rotation of the arc plate 620 pulls the absorbent cotton 630 to rotate through the connecting slide plate 631. The rotation of the absorbent cotton 630 allows its bottom coating surface to evenly apply flux to the circumferential surface of the oil outlet pipe joint and the oil outlet pipe welding point.

[0037] like Figures 10 to 13As shown, this is a second embodiment of the flux coating assembly. Specifically, the flux coating assembly is a coating mechanism 2 700. The coating mechanism 2 700 includes a linear slide rail 710 mounted on the top of the connecting plate 530. Linear sliders 720 are slidably disposed at both ends of the surface of the linear slide rail 710. One end of the linear slider 720 is connected to a push plate 730 through a rotating shaft. The other ends of the two push plates 730 are jointly mounted with a push block 740 through a rotating shaft. The push block 740 is pushed by a telescopic rod 760 mounted on the surface of the connecting plate 530. The telescopic rod 760 is a device capable of linear displacement, such as an electric push rod or a hydraulic rod. The fixed end of the telescopic rod 760 is connected to the surface of the connecting plate 530, while the output end of the telescopic rod 760 is connected to one side of the surface of the push block 740. By pushing the push block 740 outward through the telescopic rod 760, the two push plates 730 can be driven to pull the linear slider 720 to move in opposite directions on the surface of the linear slide rail 710. In this way, the two oppositely arranged semicircular plates 770 are driven to move away from each other. Similarly, if the push block 740 is pulled inward, the two semicircular plates 770 will eventually move closer to each other.

[0038] Specifically, a limit seat 750 is slidably provided at the bottom of the push block 740. One end of the limit seat 750 is connected to the surface of the connecting plate 530. Therefore, the push block 740 is limited by the limit seat 750 so that it can move linearly and stably on the surface of the limit seat 750.

[0039] One end of the linear slider 720 is connected to a semi-circular plate 770, and the inner side of the semi-circular plate 770 is connected to absorbent cotton 780. The bottom of absorbent cotton 780 is a flux-coated surface. Therefore, when welding the oil outlet pipe and the oil outlet pipe joint, the coating mechanism 700 is tilted by the drive motor 520, so that the flux coating surface of the absorbent cotton 780 is tilted upward. Then, the coating mechanism 700 is moved into the flux collection chamber 400, so that the flux coating surface of the absorbent cotton 780 contacts the surface of the sponge 430, and flux adheres to the flux coating surface of the absorbent cotton 780. Then, it is reset, and then the push plate 730 is pushed by the telescopic rod 760 to drive the linear slider 720 so that the semi-circular plate 770 and the absorbent cotton 780 are brought closer together. The flux coating surface at the bottom of the absorbent cotton 780 is attached to the welding joint of the oil outlet pipe and the oil outlet pipe joint, and flux is applied to its surface. Then, the welding joint of the oil outlet pipe and the oil outlet pipe joint is flame welded by the flame welding mechanism.

[0040] Specifically, the working principle of this semi-automatic flame welding device for the oil outlet pipe is as follows: During operation, the worker first installs the oil outlet pipe connector onto the welding socket 310 of the welding platform 300. After one end of the oil outlet pipe is connected to the connector, it is snapped into the positioning socket 320 to complete the positioning. Subsequently, the linear drive group 540 drives the carrier 500 to move to the flux collection chamber 400. The drive motor 520 drives the rotating shaft 510 to flip the flux coating component on the connecting plate 530, so that it comes into contact with the sponge 430 in the flux collection chamber 400 to adhere the flux. The guide cotton plate 420 continuously supplies flux to the sponge 430. After the component is reset, the flux is applied to the welding area. Then, the slide 120 drives the sliding plate 130 to move the mounting base 200, so that the welding machine 210 on the mounting base 200 performs flame welding by aiming the welding torch 230 at the welding area. Since the support 140 is equipped with two sets of welding platforms 300 and welding sockets 310, when welding one set of parts, the oil outlet pipe and connector can be pre-installed on the other set to achieve alternating operation. During welding, the adjustable mounting bracket on the support 220 fixes the welding torch 230 to ensure precise welding position. After welding is completed, the linear drive assembly 540 can move the support seat 500 back to the initial position, and the slide 120 drives the flame welding mechanism to reset, completing one welding cycle.

[0041] It should be noted that the specific models and specifications of the electrical equipment involved in this solution, such as the linear motor, drive motor 520, motor in the linear drive group 540, motor drive component 640, and telescopic rod 760, need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The power supply and operating principle of the motors, motor drive components 640, and telescopic rods 760 in the aforementioned linear motor, welding machine 210, drive motor 520, linear drive group 540, etc., are clear to those skilled in the art and will not be described in detail here.

[0043] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A semi-automatic torch welding apparatus for oil flow lines, characterized in that, The assembly platform (110) includes a flame welding mechanism symmetrically and movably installed at the front and rear ends of the top of the assembly platform (110), and welding platforms (300) symmetrically arranged at the left and right ends of the top of the assembly platform (110). Welding sockets (310) are fastened to one end of the top of the two welding platforms (300) by bolts. The welding sockets (310) are used to install oil outlet pipe joints. The flame welding mechanism includes a mounting base (200), and a welding machine (210) is mounted on the top of the mounting base (200). The output end of the welding machine (210) is equipped with a welding torch (230), and the flame-spraying end of the welding torch (230) is inclined and faces the insertion point of the oil outlet pipe joint and the oil outlet pipe. Meanwhile, a rotatable shaft (510) is provided on one side of the welding platform (300) and adjacent to the welding socket (310), and a connecting plate (530) is connected to the surface of the shaft (510). A flux coating assembly is installed at one end of the connecting plate (530). The flux coating assembly is used to apply flux to the oil pipe joint and the oil pipe welding joint to remove oxides on the oil pipe welding surface, prevent high-temperature oxidation, and promote the flow of the brazing filler metal.

2. The semi-automatic flame welding device for the oil outlet pipe according to claim 1, characterized in that, The top of the assembly platform (110) is horizontally mounted with a slide (120), and the output end of the slide (120) is mounted with a slide plate (130). The top of the assembly platform (110) is supported by a material collection frame (150), and a support (140) is installed inside the material collection frame (150). The welding platform (300) is installed on the top of the support (140).

3. The semi-automatic flame welding device for the oil outlet pipe according to claim 2, characterized in that, The outer side of the rotating shaft (510) is fitted with a bearing seat (500), and the two shaft ends of the rotating shaft (510) are movably mounted on the surface of the bearing seat (500) through bearings; A drive motor (520) is fastened to one side of the bearing seat (500) by bolts, and a linear drive group (540) is installed on the inner side of the welding platform (300). The linear drive group (540) can drive the bearing seat (500) to move linearly.

4. The semi-automatic flame welding device for the oil outlet pipe according to claim 3, characterized in that, The top of the collection frame (150) is symmetrically provided with a flux collection bin (400) along the axis. The inner surface of the flux collection bin (400) is provided with a collection chamber (401), and the collection chamber (401) stores flux. A receiving frame (410) is placed on the top of the inner side of the flux collection bin (400), and a sponge (430) is installed at an angle on the top of the inner cavity of the collection chamber (401), wherein one end of the sponge (430) extends through to the outside of the flux collection bin (400).

5. The semi-automatic flame welding device for the oil outlet pipe according to claim 4, characterized in that, The flux coating assembly is a coating mechanism (600). The coating mechanism (600) includes an arc-shaped frame (610) connected to the connecting plate (530) and an arc-shaped plate (620) disposed in the arc-shaped frame (610). The inner surface of the arc-shaped frame (610) is provided with absorbent cotton (630), and the arc-shaped plate (620) can drive the absorbent cotton (630) to rotate around the arc-shaped frame (610) as the center. The top and bottom of the arc plate (620) are connected to stabilizing arc plates (621), and multiple rotating rods (622) are symmetrically arranged at the upper and lower ends of the cavity wall of the arc frame (610). The rotating rods (622) slide in contact with the stabilizing arc plates (621).

6. The semi-automatic flame welding device for the oil outlet pipe according to claim 5, characterized in that, The top of the arc frame (610) is fastened with a cover plate (611) by bolts, and a connecting slide plate (631) is connected to one side of the absorbent cotton (630). The surface of the connecting slide plate (631) extends into the inner cavity of the arc frame (610) and is connected to the arc plate (620).

7. The semi-automatic flame welding device for the oil outlet pipe according to claim 6, characterized in that, The top of the cover plate (611) is fastened with a motor drive unit (640) by bolts. The output end of the motor drive unit (640) extends through to the bottom of the cover plate (611) and is connected to a rotating shaft (641). Both ends of the side wall of the arc frame (610) are vertically mounted with rotating shafts (642) via bearings. Transmission wheels (645) are sleeved on the surfaces of rotating shafts (641) and the two rotating shafts (642). The multiple transmission wheels (645) are connected by a transmission belt (643).

8. The semi-automatic flame welding device for the oil outlet pipe according to claim 7, characterized in that, The bottom of the surface of the rotating shaft (642) is fitted with a toggle disc (650), and the outer surface of the toggle disc (650) and the surface of the arc plate (620) are both treated with anti-slip treatment. The surface of the toggle disc (650) extends into the inner cavity of the arc frame (610) and contacts the surface of the arc plate (620).

9. The semi-automatic flame welding device for the oil outlet pipe according to claim 4, characterized in that, The flux coating assembly is a coating mechanism two (700). The coating mechanism two (700) includes a linear slide rail (710) installed on the top of the connecting plate (530). Linear sliders (720) are slidably arranged at both ends of the surface of the linear slide rail (710). One end of the linear slider (720) is connected to a push plate (730) through a rotating shaft. The other ends of the two push plates (730) are jointly installed with a push block (740) through a rotating shaft. The push block (740) is pushed by a telescopic rod (760) installed on the surface of the connecting plate (530).

10. The semi-automatic flame welding device for the oil outlet pipe according to claim 9, characterized in that, One end of the linear slider (720) is connected to a semicircular plate (770), and the inner side of the semicircular plate (770) is connected to a water-absorbing cotton 2 (780), the bottom of the water-absorbing cotton 2 (780) is a flux-coated surface.

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