Full-automatic pipe diameter self-adaption tool for welding coiled pipe

Abstract

The invention discloses a full-automatic welding pipe diameter self-adaption tool for a coiled pipe, and belongs to the field of pipeline welding. The full-automatic welding pipe diameter self-adaption tool for the coiled pipe comprises an operation table, a slag discharging groove is formed in the middle of the operation table, a stock bin is assembled on the left side of the operation table, and a clamping device which is self-adaptive to the specification of the coiled pipe is assembled on the upper surface of the operation table; an outer rail is assembled in a slag discharging groove of the operation table, two rotating motors are assembled on the outer side of the outer rail, a driving wheel is assembled on an output shaft of each rotating motor, two penetrating grooves are formed in the middle of the outer rail, and the two driving wheels are located in the two penetrating grooves respectively. Two U-shaped pipelines are clamped through the two clamping devices and are preliminarily spliced into a snakelike state, then the driving wheels are controlled to rotate through the two rotating motors, then the inner track annularly slides in the outer track, and at the moment, annular welding is conducted on the spliced position of the two U-shaped pipelines through the laser welding device in the inner track.

Description

Technical Field

[0001] This application relates to the field of pipe welding, and more specifically, to a fully automatic welding fixture for serpentine pipes with adaptive pipe diameter. Background Technology

[0002] Laser welding is a highly efficient and precise welding method that utilizes a high-energy-density laser beam as a heat source. It is a crucial application of laser materials processing technology. In the 1970s, it was primarily used for welding thin-walled materials and low-speed welding. The welding process is heat conduction type; the laser radiation heats the workpiece surface, and the surface heat diffuses inward through heat conduction. By controlling parameters such as the laser pulse width, energy, peak power, and repetition frequency, the workpiece melts, forming a specific molten pool. Its unique advantages have led to its successful application in the precision welding of micro and small parts.

[0003] Existing laser welding equipment for serpentine tube butt welding uses a universal bracket to connect the laser welding machine for laser welding. During the welding process, the position of the universal bracket needs to be adjusted multiple times and with great precision to ensure that the serpentine tube butt welding operation is completed. This results in extremely low welding efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fully automatic welding fixture for serpentine pipes with adaptive pipe diameter, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this application provides a fully automatic welding fixture for serpentine pipes with adaptive pipe diameter, including an operating table. A slag discharge trough is provided in the middle of the operating table, a material hopper is installed on the left side of the operating table, and a clamp for adaptive serpentine pipe specifications is installed on the upper surface of the operating table. An outer track is installed in the slag discharge trough of the operating table, and two rotary motors are installed on the outer side of the outer track. A drive wheel is installed at the output shaft of each rotary motor. Two through slots are provided in the middle of the outer track, and the two drive wheels are located in the two through slots respectively. Two symmetrically arranged limiting plates are welded inside the outer track. An inner track is slidably connected inside the outer track and located between two limiting plates. Multiple rotating rods are fixedly connected through and inside the inner track. Each rotating rod has limiting wheels rotatably connected to both ends. A high-resistance telescopic rod is fixed to the inner wall of the inner track, and a laser welder is fixed to the bottom of the movable rod of the high-resistance telescopic rod. This application first uses two clamps to hold two U-shaped pipes and initially splices them into a serpentine shape. Then, two rotary motors control the drive wheels to rotate, causing the inner track to slide in a ring inside the outer track. At this time, the laser welder inside the inner track performs ring welding on the joint of the two U-shaped pipes. This solves the problem in the prior art where multiple and precise adjustments of the universal bracket are required to ensure complete welding of the serpentine pipe joint, leading to extremely low welding efficiency.

[0006] Preferably, the bottom of the operating platform is equipped with a waste residue recycling bin that is compatible with the slag discharge trough.

[0007] Preferably, the upper surface of the operating table is provided with a sliding groove, and a threaded rod is rotatably connected in the sliding groove. The clamp includes a sliding rod slidably connected in the sliding groove. The sliding rod is threadedly connected to the threaded rod. A C-shaped bracket is fixed to the top of the sliding rod. A T-shaped bracket is slidably connected through the inner wall of the C-shaped bracket. Each T-shaped bracket is connected to the C-shaped bracket by a spring. A rubber extrusion wheel is rotatably connected to the end of each T-shaped bracket.

[0008] Preferably, the inner side of each limiting wheel is close to the limiting plate, and each limiting wheel is in extrusive contact with the inner wall of the outer track.

[0009] Preferably, the inner wall of the inner track is fitted with a grinding assembly for grinding the weld seam.

[0010] Preferably, the grinding assembly includes a grinding wheel bracket, which is fixed to the middle of the inner wall of the inner track. One end of the grinding wheel bracket is rotatably connected to a rotating rod two, and the other end is rotatably connected to a rotating rod three. A grinding wheel is fixed to the middle of the rotating rod two, and the rotating rod three is driven by a chain to the rotating rod two. A friction wheel is fixed to the front end of the rotating rod three. This application uses a grinding assembly to grind the annular weld joint. The rotation of the inner track causes the friction wheel to rotate in the opposite direction to the rotation of the inner track. Subsequently, the friction wheel drives the rotating rod two to rotate, and the rotating rod two, under the action of the chain, drives the rotating rod three to rotate, thereby causing the grinding wheel to rotate. At this time, the rotation direction of the grinding wheel is opposite to the rotation direction of the inner track, and the annular weld joint is ground by the grinding wheel.

[0011] Preferably, the edge of the friction wheel contacts and presses against the side of the limiting plate.

[0012] Preferably, a cooling assembly is fitted to the outer side of the outer track. The cooling assembly includes a cooler mounted on the outer side of the outer track, a primary air duct at the air outlet of the cooler, and a secondary air duct hinged to the end of the primary air duct. The primary and secondary air ducts are connected by an elastic telescopic rod. This application achieves rapid cooling of the annular weld surface by using the cooling assembly. Simultaneously, as the inner track rotates, the laser welder intermittently impacts the secondary air duct, which not only increases the heat dissipation area but also cleans residual dust inside the secondary air duct through the impact.

[0013] The advantages of this application are: (1) This application first uses two clamps to clamp two U-shaped pipes and initially splices them into a serpentine state. Then, two rotary motors control the drive wheel to rotate, so that the inner track slides in a ring inside the outer track. At this time, the laser welder in the inner track performs ring welding on the splice of the two U-shaped pipes. This solves the problem that the existing technology requires multiple and precise adjustments of the position of the universal bracket to ensure the complete welding operation of the serpentine pipe connection, which leads to extremely low welding efficiency.

[0014] (2) This application grinds the annular weld by setting up a grinding component. The inner track rotates, causing the friction wheel to rotate. The direction of rotation of the friction wheel is opposite to the direction of rotation of the inner track. Then, the friction wheel drives the rotating rod two to rotate. The rotating rod two drives the rotating rod three to rotate under the action of the chain, thereby causing the grinding wheel to rotate. At this time, the direction of rotation of the grinding wheel is opposite to the direction of rotation of the inner track. The annular weld is ground by the grinding wheel.

[0015] (3) This application uses a cooling component to quickly cool the surface of the annular weld. At the same time, as the inner track slides in an annular manner, the laser welder will intermittently impact the secondary air duct, which can not only increase the heat dissipation area, but also clean the dust remaining in the secondary air duct through the impact. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a partial schematic diagram of the external structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the clamp of the present invention; Figure 5 This is a partial schematic diagram of the external structure of the present invention. Figure 2 ; Figure 6 This is a partial schematic diagram of the external structure of the present invention. Figure 3 ; Figure 7 This is a partial schematic diagram of the external structure of the present invention. Figure 4 ; Figure 8 This is a schematic diagram of the structure of the polishing component of the present invention; Figure 9 This is a schematic diagram of the cooling component of the present invention.

[0017] In the above diagram: 100, operating platform; 200, hopper; 300, outer track; 301, limit plate; 302, rotary motor; 303, drive wheel; 304, through groove; 400, waste residue recycling bin; 500. Clamp; 501. Slide bar; 502. C-shaped bracket; 503. T-shaped bracket; 504. Rubber extrusion wheel; 600. Inner track; 601. Rotating rod one; 602. Limiting wheel; 603. High-resistance telescopic rod; 604. Laser welder; 700. Grinding assembly; 701. Grinding wheel bracket; 702. Rotating rod two; 703. Grinding wheel; 704. Rotating rod three; 705. Friction wheel; 706. Chain; 800. Cooling components; 801. Evaporative cooler; 802. Primary air duct; 803. Secondary air duct; 804. Flexible telescopic rod; 900. Slag discharge trough. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1, see Figures 1-7This embodiment provides a fully automatic welding fixture for serpentine pipes with adaptive pipe diameter, including an operating table 100. A slag discharge trough 900 is provided in the middle of the operating table 100. A material hopper 200 is mounted on the left side of the operating table 100. A clamp 500 with adaptive serpentine pipe specifications is mounted on the upper surface of the operating table 100. An outer track 300 is mounted inside the slag discharge trough 900 of the operating table 100. Two rotary motors 302 are mounted on the outer side of the outer track 300. A drive wheel 303 is mounted at the output shaft of each rotary motor 302. Two through slots 304 are provided in the middle of the outer track 300, and the two drive wheels 303 respectively... Located within two through slots 304, the outer track 300 has two symmetrically arranged limiting plates 301 welded inside. The upper surface of the operating table 100 has a sliding groove, and a threaded rod is rotatably connected in the sliding groove. The clamp 500 includes a sliding rod 501 slidably connected in the sliding groove. The sliding rod 501 is threadedly connected to the threaded rod. A C-shaped bracket 502 is fixed to the top of the sliding rod 501. A T-shaped bracket 503 is slidably connected through the inner wall of the C-shaped bracket 502. Each T-shaped bracket 503 is connected to the C-shaped bracket 502 by a spring. A rubber extrusion wheel 504 is rotatably connected to the end of each T-shaped bracket 503. An inner track 600 is slidably connected inside the outer track 300 and between the two limiting plates 301. Multiple rotating rods 601 are fixedly connected through the inner track 600. Each rotating rod 601 has a limiting wheel 602 rotatably connected to both ends. A high-resistance telescopic rod 603 is fixed to the inner wall of the inner track 600. A laser welder 604 is fixed to the bottom of the movable rod of the high-resistance telescopic rod 603. The inner side of each limiting wheel 602 is close to the limiting plate 301, and each limiting wheel 602 is in extrusive contact with the inner wall of the outer track 300. The bottom of the operating platform 100 is equipped with a waste residue recycling bin 400 that is compatible with the slag discharge trough 900.

[0025] This application first uses two clamps 500 to clamp two U-shaped pipes and initially splice them into a serpentine shape. Then, two rotary motors 302 control the drive wheel 303 to rotate, which causes the inner track 600 to slide in a ring inside the outer track 300. At this time, the laser welder 604 inside the inner track 600 performs ring welding on the splice of the two U-shaped pipes. This solves the problem in the prior art that multiple and precise adjustments of the universal bracket are required to ensure the complete welding operation of the serpentine pipe joint, which leads to extremely low welding efficiency.

[0026] In practical use, the above-mentioned equipment first places two U-shaped pipes in the hopper 200 into two clamps 500 for clamping. Since the clamps 500 consist of three C-shaped supports 502, T-shaped supports 503, and rubber extrusion rollers 504, they can be used to clamp U-shaped pipes of various specifications. After clamping by the clamps 500, fine adjustments are made to bring the ends of the two U-shaped pipes into contact and form a staggered serpentine shape. Then, by adjusting the high-resistance telescopic rod 603, the laser welder 604 is brought close to the connection point of the two U-shaped pipes. Finally, the two rotary motors 302 are started to drive the two... When the drive wheel 303 rotates, it is located inside the through groove 304 and is pressed against the outer surface of the inner track 600. Therefore, when the two drive wheels 303 rotate, they control the inner track 600 to slide in a ring between the two limiting plates 301 inside the outer track 300. At this time, the laser welder 604 performs ring welding. Since both the inner track 600 and the outer track 300 are C-shaped structures, the multiple limiting wheels 602 set on the side of the inner track 600 play a stabilizing and limiting role during the ring sliding process of the inner track 600, preventing derailment and further ensuring the stability of the welding process.

[0027] Example 2, see Figures 1-8 In this embodiment, based on Embodiment 1, the inner wall of the inner track 600 is equipped with a grinding assembly 700 for grinding welds. The grinding assembly 700 includes a grinding wheel bracket 701, which is fixed in the middle of the inner wall of the inner track 600. One end of the grinding wheel bracket 701 is rotatably connected to a rotating rod 702, and the other end of the grinding wheel bracket 701 is rotatably connected to a rotating rod 704. A grinding wheel 703 is fixed in the middle of the rotating rod 702, and the rotating rod 704 is connected to the rotating rod 702 via a chain 706. A friction wheel 705 is fixed at the front end of the rotating rod 704.

[0028] This application uses a grinding assembly 700 to grind the annular weld joint. The rotation of the inner track 600 causes the friction wheel 705 to rotate, and the rotation direction of the friction wheel 705 is opposite to that of the inner track 600. Subsequently, the friction wheel 705 drives the rotating rod 702 to rotate, and the rotating rod 702 drives the rotating rod 704 to rotate under the action of the chain 706, which in turn causes the grinding wheel 703 to rotate. At this time, the rotation direction of the grinding wheel 703 is opposite to that of the inner track 600, and the annular weld joint is ground by the grinding wheel 703.

[0029] In practical use, as the inner track 600 rotates during the annular welding process, the friction wheel 705 rotates due to its contact with the inner wall of the outer track 300 under the action of friction. The rotation of the friction wheel 705 drives the rotating rod 704 to rotate. At the same time, the chain 706 drives the rotating rod 702 to rotate synchronously. The rotation of the rotating rod 702 drives the grinding wheel 703 fixed in the middle to rotate. Since the rotation of the friction wheel 705 is provided by the friction of the inner wall of the outer track 300, the rotation direction of the friction wheel 705 is opposite to the rotation direction of the inner track 600. At this time, the rotation of the grinding wheel 703 can grind the annular weld of the two U-shaped pipes. The welding slag or impurities generated by grinding will enter the waste slag recovery bin 400 through the through groove 304 for subsequent recycling and processing.

[0030] Example 3, see Figures 1-9 In this embodiment, based on embodiment one, the edge of the friction wheel 705 contacts and presses against the side of the limiting plate 301. A cooling component 800 is installed on the outer side of the outer track 300. The cooling component 800 includes a cooler 801 installed on the outer side of the outer track 300. A primary air duct 802 is installed at the air outlet of the cooler 801. A secondary air duct 803 is hinged to the end of the primary air duct 802. The primary air duct 802 and the secondary air duct 803 are connected by an elastic telescopic rod 804.

[0031] This application uses a cooling component 800 to quickly cool the surface of the annular weld joint. At the same time, as the inner track 600 slides in an annular manner, the laser welder 604 will intermittently impact the secondary air duct 803. This not only increases the heat dissipation area, but also cleans the dust remaining inside the secondary air duct 803 through the impact.

[0032] In practical use, during the welding process, as the laser welder 604 welds, the cooler 801 on the outer side of the outer track 300 is activated simultaneously. The cool air it sends out is conducted through the primary air duct 802 to the secondary air duct 803 and then sent out to cool the welded area. As the inner track 600 slides in a ring, the laser welder 604 will intermittently impact the secondary air duct 803, which not only increases the heat dissipation area but also cleans the dust remaining in the secondary air duct 803 through the impact.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic welding fixture for serpentine pipes with adaptive pipe diameter, comprising an operating table (100), characterized in that, The operating platform (100) has a slag discharge trough (900) in the middle, a hopper (200) is installed on the left side of the operating platform (100), a clamp (500) with adaptive serpentine tube specifications is installed on the upper surface of the operating platform (100), an outer track (300) is installed in the slag discharge trough (900) of the operating platform (100), two rotary motors (302) are installed on the outer side of the outer track (300), and a drive wheel (303) is installed at the output shaft of each rotary motor (302). Two through slots (304) are opened in the middle of the outer track (300), and the two drive wheels (303) are respectively located in the two through slots (304). Two symmetrically arranged limiting plates (301) are welded inside the outer track (300). An inner track (600) is slidably connected inside the outer track (300) and between the two limiting plates (301). Multiple rotating rods (601) are fixedly connected through the inner track (600). Each rotating rod (601) has a limiting wheel (602) rotatably connected to both ends. A high-resistance telescopic rod (603) is fixed to the inner wall of the inner track (600). A laser welder (604) is fixed to the bottom of the movable rod of the high-resistance telescopic rod (603). The inner wall of the inner track (600) is equipped with a grinding assembly (700) for grinding welds. The grinding assembly (700) includes a grinding wheel bracket (701), which is fixed in the middle of the inner wall of the inner track (600). One end of the grinding wheel bracket (701) is rotatably connected to a rotating rod two (702), and the other end of the grinding wheel bracket (701) is rotatably connected to a rotating rod three (704). A grinding wheel (703) is fixed in the middle of the rotating rod two (702), and the rotating rod three (704) is connected to the rotating rod two (702) by a chain (706). A friction wheel (705) is fixed at the front end of the rotating rod three (704), and the edge of the friction wheel (705) contacts and presses against the side of the limiting plate (301).

2. The fully automatic welding fixture for serpentine pipes with adaptive pipe diameter according to claim 1, characterized in that, The bottom of the operating table (100) is equipped with a waste residue recycling bin (400) that is compatible with the slag discharge trough (900).

3. The fully automatic welding fixture for serpentine pipes with adaptive pipe diameter according to claim 1, characterized in that, The upper surface of the operating table (100) is provided with a sliding groove, and a threaded rod is rotatably connected in the sliding groove. The clamp (500) includes a sliding rod (501) slidably connected in the sliding groove. The sliding rod (501) is threadedly connected to the threaded rod. A C-shaped bracket (502) is fixed at the top of the sliding rod (501). A T-shaped bracket (503) is slidably connected through the inner wall of the C-shaped bracket (502). Each T-shaped bracket (503) is connected to the C-shaped bracket (502) by a spring. A rubber extrusion wheel (504) is rotatably connected to the end of each T-shaped bracket (503).

4. The fully automatic welding fixture for serpentine pipes with adaptive pipe diameter according to claim 1, characterized in that, The inner side of each of the limiting wheels (602) is close to the limiting plate (301), and each of the limiting wheels (602) is in extrusive contact with the inner wall of the outer track (300).

5. The fully automatic welding fixture for serpentine pipes with adaptive pipe diameter according to claim 1, characterized in that, A cooling component (800) is installed on the outside of the outer track (300). The cooling component (800) includes a cooler (801) installed on the outside of the outer track (300). A primary air duct (802) is installed at the air outlet of the cooler (801). A secondary air duct (803) is hinged to the end of the primary air duct (802). The primary air duct (802) and the secondary air duct (803) are connected by an elastic telescopic rod (804).

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