Pipe fitting continuous machining integrated production line

Abstract

The invention provides an integrated production line for continuous machining of pipe fittings. The integrated production line comprises a pipe manufacturing device, a cutting device, a conveying device, a grinding device and a control system for cooperative control. The cutting device obtains the pipe manufacturing speed in real time through the speed detection unit, and the control system dynamically controls the cutting execution unit to achieve synchronous cutting. And the grinding device adopts grinding mechanisms which are symmetrically arranged to grind the end opening of the pipe section. Through process integration and dynamic cooperative control, the problems that a traditional separation type process is low in efficiency and poor in collaboration, precision and speed are difficult to match during online continuous cutting, and machining quality consistency is poor are solved, full-process continuous and automatic production of the pipes from forming to finish machining is achieved, and the production efficiency is improved. And the production efficiency and the product consistency are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and in particular to an integrated production line for continuous processing of pipe fittings. Background Technology

[0002] The production of stainless steel pipes and other metal pipes typically employs a separate process of "pipe making → manual transfer → cutting → manual grinding." In this model, each process operates independently, making it difficult to match the cycle times of pipe making and cutting. This can easily lead to pipe accumulation between processes or equipment downtime, resulting in low production efficiency. Furthermore, the cutting method, relying on manual length setting or simple mechanical positioning, has poor precision, and the burrs and spatter generated at the cut ends require additional manual grinding. Manual grinding quality is inconsistent; over-grinding can damage the pipe ends, while under-grinding affects product quality. The entire process also requires 2-3 operators, resulting in high labor costs and high labor intensity. Therefore, there is an urgent need for a continuous production line that can deeply integrate the entire process of pipe making, length cutting, and end grinding, achieving intelligent collaboration and reduced human intervention. Summary of the Invention

[0003] This invention provides an integrated production line for continuous processing of pipe fittings to solve technical problems such as low pipe production efficiency, poor coordination, low cutting accuracy, and poor consistency of processing quality.

[0004] The present invention provides an integrated production line for continuous processing of pipe fittings, comprising: Tube-making equipment, used to continuously form and weld metal strips into tubes; A cutting device is disposed at the pipe output end of the pipe making device and is used to cut the pipe to a fixed length. The cutting device includes a speed detection unit for detecting the real-time pipe making speed and a cutting execution unit for cutting the pipe. A conveying device, located at the end of the cutting device, is used to receive and convey the cut pipe segment; A grinding device, connected to the cutting device via the conveying device, is used to grind the cut ends of the pipe section; The control system is electrically connected to the tube-making device, the cutting device, the conveying device, and the grinding device, respectively. The control system is configured to control the cutting execution unit to move synchronously with the continuously moving tube and perform fixed-length cutting based on the real-time tube-making speed detected by the speed detection unit.

[0005] In one embodiment of the present invention, the cutting execution unit includes: A movable platform is provided along the conveying direction of the pipe, and the movable platform is configured to reciprocate along the conveying direction of the pipe. A clamping assembly is disposed on the movable platform and surrounds the pipe for clamping or releasing the pipe; A rotary cutting assembly is disposed on the movable platform and is configured to rotate about the axis of the pipe and cut the pipe.

[0006] In one embodiment of the present invention, the rotary cutting assembly includes: A rotating component having a hollow structure for the tubing to pass through, the rotating component being configured to rotate about the axis of the tubing; A cutting mechanism, comprising an adjusting member disposed on the rotating member and a cutting tool connected to the adjusting member, wherein the cutting end of the cutting tool faces the center of the rotating member, and the adjusting member is configured to adjust the relative position of the cutting tool and the pipe.

[0007] In one embodiment of the present invention, the cutting tool is a laser cutting head.

[0008] In one embodiment of the present invention, the cutting device further includes a discharge mechanism, which is disposed at one end of the cutting device near the conveying device and is used to transfer the pipe section to the conveying device.

[0009] In one embodiment of the present invention, the polishing device includes: A clamping and rotating mechanism is used to clamp and drive the pipe segment to rotate about its axis; At least one grinding mechanism is configured to approach or move away from the end of the pipe section along its axial direction to perform a grinding operation on the cut end of the pipe.

[0010] In one embodiment of the present invention, there are two grinding mechanisms, which are symmetrically arranged on both sides of the clamping and rotating mechanism along the axial direction of the pipe, and simultaneously grind the two cutting ports of the pipe section.

[0011] In one embodiment of the present invention, the grinding mechanism includes a grinding head that can be fed linearly toward the end of the tube, and the grinding head is a combined grinding head containing at least two different grinding media.

[0012] In one embodiment of the present invention, the control system includes a parameter self-tuning module, which is configured to automatically set processing parameters based on the input pipe specification parameters.

[0013] In one embodiment of the present invention, a position sensor for detecting the position of the pipe or the pipe segment is further included, and the position sensor is communicatively connected to the control system.

[0014] The beneficial effects of the present invention: The integrated production line for continuous processing of pipe fittings proposed in this invention achieves continuous automated production from raw materials to finished products by integrating pipe making, online fixed-length cutting and automatic grinding processes and introducing dynamic collaborative control. It fundamentally eliminates material accumulation and secondary handling between processes, significantly improves production efficiency, and reduces site occupation, labor costs and product damage risks. By combining real-time speed measurement and motion control algorithms, the cutting unit achieves precise speed synchronization and accurate cutting of high-speed traveling pipes. While ensuring that the cutting process does not need to be interrupted, it guarantees the high perpendicularity and high flatness of the cut, taking into account both the efficiency and accuracy of online cutting. By using orderly and coordinated cutting execution units, the dynamic cutting process is decomposed into highly stable standardized steps, which improves the rigidity and reliability of the cutting process and provides a high-quality port foundation for subsequent grinding processes, ensuring the stability of the process chain. By adopting a symmetrical double-head layout and a coarse-fine combined grinding head design, the burrs at both ends of the pipe section are processed simultaneously and efficiently, and finished consistently, which doubles the grinding efficiency and solves the problem of grinding quality fluctuation. By integrating an intelligent control system with parameter self-tuning, multi-sensor feedback, and fault diagnosis, the production line achieves adaptive optimization and precise coordination, enabling it to have flexible production changeover capabilities and high operational stability. Ultimately, this achieves the overall goal of improving production efficiency, ensuring product consistency, and reducing overall operating costs. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0016] In the attached diagram: Figure 1 This is a partial structural schematic diagram of an integrated production line for continuous processing of pipe fittings provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the cutting device of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of the cutting device of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of the cutting device of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention from another angle. Figure 5This is a schematic diagram of the discharge mechanism of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention; Figure 6 This is a schematic diagram of the grinding device and conveying device of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention. Figure 7 This is a schematic diagram of the grinding device of the integrated production line for continuous processing of pipe fittings provided in one embodiment of the present invention.

[0017] The attached figures are labeled as follows: 100. Cutting device; 110. Cutting execution unit; 120. Discharge mechanism; 130. Slag suction assembly; 111. Moving platform; 112. Clamping assembly; 113. Rotary cutting assembly; 1131. Rotating component; 1132. Adjusting component; 1133. Cutting tool; 114. Rotary platform; 121. Flip plate fixing frame; 122. Flip plate; 123. Tilting cylinder; 200. Conveying device; 300. Grinding device; 310. Pressing and rotating mechanism; 320. Grinding mechanism; 330. Discharge chute; 340. Push plate; 350. Push plate drive component; 311. Driven roller; 312. Driven roller; 313. Pressing roller; 314. Driven roller motor; 321. Grinding head; 322. Grinding head servo motor; 400. Pipe material; 410. Pipe section. Detailed Implementation

[0018] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0020] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0021] With the acceleration of industrialization, the demand for high-quality metal pipes is increasing. Traditional pipe processing production lines typically employ a method of manufacturing pipes first, followed by offline cutting and grinding. This method has many drawbacks. For example, after manufacturing, the pipes need to undergo storage and handling before entering the cutting and grinding processes, which not only occupies a large amount of space and increases production costs, but also easily causes surface damage or deformation of the pipes due to repeated handling, affecting product quality. In addition, offline cutting and grinding often cannot be precisely matched with the pipe manufacturing speed, resulting in low production efficiency. Furthermore, the burrs and flash generated during cutting and grinding require additional manual cleaning, further increasing labor costs and safety risks. Existing online cutting solutions often struggle to balance cutting accuracy and efficiency, especially in high-speed pipe manufacturing processes, where it is impossible to ensure precise synchronization of cutting points, stable cutting quality, and subsequent processing of the cut ends.

[0022] Please see Figures 1 to 7 This invention proposes an integrated production line for continuous processing of pipe fittings, including a pipe-making device (not shown in the figure), a cutting device 100, a conveying device 200, a grinding device 300, and a control system. The tube-making device is used to continuously form and weld metal strips into tubes 400; the cutting device 100 is located at the tube output end of the tube-making device and is used to cut the tubes 400 to a fixed length. It includes a speed detection unit for detecting the real-time tube-making speed and a cutting execution unit 110 for cutting the tubes 400; the conveying device 200 is located at the end of the cutting device 100 and is used to receive and convey the cut tube segments 410; the grinding device 300 is connected to the cutting device 100 through the conveying device 200 and is used to grind the cut ends of the tube segments 410; the control system is electrically connected to the tube-making device, the cutting device 100, the conveying device 200 and the grinding device 300 respectively. The control system is configured to control the cutting execution unit 110 to move synchronously with the continuously moving tubes 400 and cut them to a fixed length according to the real-time tube-making speed detected by the speed detection unit.

[0023] Please see Figures 1 to 7This invention integrates multiple processes such as pipe making, fixed-length cutting, and grinding onto a continuous production line, and introduces a dynamic matching and collaborative control mechanism for pipe making speed and cutting. This effectively solves the problems of low efficiency, large space occupation, high risk of product damage, and high labor costs associated with offline processing. By real-time detection of the pipe making speed and precise control of the cutting execution unit 110 for synchronous cutting, online high-speed and high-precision fixed-length cutting of pipe 400 is achieved, avoiding secondary handling of pipe 400 and significantly improving production efficiency and product quality. The subsequent online grinding device 300 further improves the processing accuracy and surface quality of pipe segment 410, realizing full automation and intelligence in pipe production. Only one person is needed to monitor the equipment operation throughout the entire process, reducing labor costs by more than 60% compared to traditional processes and significantly improving production efficiency.

[0024] Please see Figures 1 to 7 In one embodiment of the present invention, the tube-making device can continuously process coiled metal strips (such as stainless steel strips, carbon steel strips, etc.) into tubes 400 with a specific diameter and wall thickness through a series of precision processes including uncoiling, leveling, shearing and welding, material storage, cold bending, high-frequency welding, deburring, cooling, sizing, and straightening. The output end of the tube-making device is directly connected to the feed end of the cutting device 100, realizing uninterrupted transmission of the tube 400 from forming to processing. The output end of the tube-making device continuously and stably feeds the continuously moving tube 400 to the cutting device 100, and its output speed is the tube-making speed, which is also the basis for the synchronous control of subsequent fixed-length cutting and grinding processes. The continuous and stable output of the tube-making device is a prerequisite for the online and efficient operation of the entire production line, which can avoid intermittent production and accumulation of tubes 400 in the production line, thereby effectively reducing the production cycle and space occupation.

[0025] Please see Figures 1 to 5In one embodiment of the present invention, the cutting device 100 includes a speed detection unit, a cutting execution unit 110, and a discharge mechanism 120 sequentially arranged on a mounting frame. The speed detection unit is used to monitor the instantaneous axial speed of the continuously traveling pipe 400 output from the pipe-making device in real time; the cutting execution unit 110 performs precise fixed-length cutting of the continuously traveling pipe 400 according to the real-time speed information provided by the speed detection unit; the discharge mechanism 120 is used to smoothly transfer the pipe 400 from the cutting device 100 to the downstream conveying device 200 after the pipe 400 is cut into pipe segments 410. The cutting device 100 obtains the real-time traveling speed of the pipe 400 through the speed detection unit and feeds this speed information back to the control system. The control system precisely controls the moving speed of the cutting execution unit 110 according to this information, so that it is completely synchronized with the traveling speed of the pipe 400, thereby achieving precise cutting while the pipe 400 is traveling. This structure avoids pauses or deceleration of the pipe 400 during the cutting process, greatly improving cutting efficiency and ensuring the flatness and perpendicularity of the cut ends. At the same time, the discharge mechanism 120 ensures that the cut pipe segment 410 can quickly and orderly enter the next process and clear the workstation for the next cutting cycle, achieving seamless connection between cutting and subsequent processes, thereby maintaining the continuity and high efficiency of the entire production line.

[0026] Please see Figures 1 to 5 In one embodiment of the present invention, the speed detection unit employs a laser velocimeter. The laser velocimeter can be installed above or to the side of the pipe 400's travel path, and upstream of the cutting execution unit 110, to obtain the pipe 400's travel speed information in advance. The laser velocimeter accurately measures the instantaneous axial travel speed (i.e., pipe-making speed) of the pipe 400 by emitting a laser beam and receiving the scattered light reflected from the surface of the pipe 400. This real-time speed data is transmitted to the control system via a high-speed communication interface. Because the laser velocimeter uses a non-contact measurement method, damage to the surface of the pipe 400 is avoided, and it has extremely high measurement accuracy and response speed, enabling it to capture minute fluctuations in the pipe 400's speed in real time. This real-time, high-precision speed detection is key to achieving precise synchronization between the cutting execution unit 110 and the pipe 400's speed, thereby ensuring that the relative position of the cutting point on the pipe 400 remains stable during high-speed pipe-making, ensuring the perpendicularity of the cutting line and the quality of the cut.

[0027] It is understood that in other embodiments, the speed detection unit can also employ other contact or non-contact sensors such as encoders or grating rulers, ensuring that its measurement accuracy and response speed meet the requirements of high-speed synchronous cutting. For example, the speed detection unit can use an encoder, with one or more measuring rollers slightly pressing against the surface of the pipe 400. As the pipe 400 travels continuously, the friction drives these measuring rollers to rotate synchronously. The encoder is connected to the shaft of the measuring rollers, and by detecting the rotation angle or pulse count of the rollers, the encoder accurately measures the real-time axial displacement of the pipe 400, and calculates the instantaneous travel speed of the pipe 400 based on the displacement per unit time. These speed and displacement data are fed back to the control system in real time as the basis for cutting control. This measurement method has a relatively simple structure and low cost. The roller pressing effectively prevents slippage of the pipe 400 during measurement, thus ensuring measurement accuracy.

[0028] Please see Figures 1 to 5 In one embodiment of the present invention, the cutting execution unit 110 includes a movable platform 111 and a clamping assembly 112 and a rotary cutting assembly 113 disposed on the movable platform 111. The movable platform 111 is disposed along the conveying direction of the pipe 400 and is provided with a moving drive assembly, enabling the movable platform 111 to reciprocate at high speed and with high precision along the conveying direction of the pipe 400. The clamping assembly 112 is disposed on the movable platform 111 and surrounds the pipe 400, used to clamp the pipe 400 during cutting and release the pipe 400 after cutting. The rotary cutting assembly 113 is also disposed on the movable platform 111, located downstream of the clamping assembly 112, and is configured to rotate at high speed around the axis of the pipe 400 and cut the pipe 400. When the cutting point of the pipe 400 is about to reach the cutting execution unit 110, the control system precisely controls the moving drive component of the moving platform 111 based on the real-time pipe-making speed provided by the speed detection unit, ensuring that its axial movement speed is perfectly matched with the traveling speed of the pipe 400. Once the speeds are synchronized, the clamping component 112 quickly clamps the pipe 400, ensuring no relative movement between the pipe 400 and the moving platform 111. At this point, the rotary cutting component 113 starts and rotates around the pipe 400 to perform cutting. This collaborative working mode can complete the cutting while the pipe 400 is continuously traveling, greatly improving production efficiency. Simultaneously, the stable clamping of the clamping component 112 during cutting effectively suppresses any vibration or swaying of the pipe 400, ensuring the stability of the cutting process and thus guaranteeing the flatness and perpendicularity of the cut, avoiding the problem of reduced cutting quality caused by pipe 400 swaying in traditional cutting. After the cutting is completed, the clamping assembly 112 quickly releases the pipe 400, and the moving platform 111 quickly returns to its initial position, ready for the next cutting. The whole process is efficient and seamless.

[0029] Please see Figures 1 to 5 In one embodiment of the present invention, the mobile platform 111 includes a high-rigidity frame structure, and a guide rail is provided on the mounting frame. The guide rail is, for example, a precision linear guide rail, which cooperates with the slider at the bottom of the mobile platform 111 to ensure its stability and positioning accuracy when reciprocating along the conveying direction of the pipe 400. The mobile drive component of the mobile platform 111 includes one or more high-power servo motors, which drive gears to mesh with racks fixed on the ground through precision reducers, or drive ball screws, thereby realizing high-speed acceleration, deceleration and precise position control of the mobile platform 111. The control system receives the pipe speed signal from the laser velocimeter in real time and, combined with its built-in motion control algorithm, sends precise motion commands to the servo motors, so that the axial speed of the mobile platform 111 can dynamically and in real time keep completely consistent with the traveling speed of the pipe 400. This precise speed matching capability ensures that the axial position of the laser cutting head relative to the pipe 400 remains unchanged during the cutting process, thereby forming a perfect cut perpendicular to the axis on the pipe 400. Meanwhile, the mobile platform 111 can return to its original position at high speed, ensuring that it can quickly return to the starting position after completing a cut, thus preparing for the next cut and maximizing the utilization rate and production efficiency of the equipment.

[0030] Please see Figures 1 to 5 In one embodiment of the present invention, the clamping assembly 112 adopts a three-jaw chuck structure. This chuck is mounted on the frame structure of the moving platform 111 and has a hollow structure for the pipe 400 to pass through. The three jaws of the chuck can move synchronously via a pneumatic or hydraulic drive mechanism to achieve rapid clamping and releasing of the pipe 400. Before cutting begins, after the moving platform 111 and the pipe 400 are synchronized in speed, the control system issues a command, and a cylinder or hydraulic cylinder drives the chuck jaws to quickly retract towards the center, firmly clamping the pipe 400. After cutting, the jaws quickly open, releasing the pipe 400. The three-jaw chuck can provide uniform and powerful clamping force, ensuring that the pipe 400 does not experience any relative displacement or swaying during high-speed travel and cutting, thereby greatly improving the stability and accuracy of cutting. Its rapid clamping and releasing response speed ensures the efficiency of the entire cutting cycle and does not slow down the production cycle due to clamping actions. In other embodiments, the clamping assembly 112 may also employ a V-block combined with a cylinder for clamping, or other forms of centering clamping mechanism, as long as it can achieve stable clamping of the pipe 400 during cutting.

[0031] Please see Figures 1 to 5In one embodiment of the present invention, the rotary cutting assembly 113 includes a rotating component 1131 and a cutting mechanism. The rotating component 1131 has a hollow structure for the pipe 400 to pass through, and its inner diameter is larger than the outer diameter of the pipe 400 to ensure that the pipe 400 can pass through smoothly. The rotating component 1131 is configured to rotate around the axis of the pipe 400. For example, the rotating component 1131 can be driven by a rotary servo motor to enable it to rotate at high speed and stably around the axis of the pipe 400. The cutting mechanism is mounted on the rotating component 1131 and rotates with it. The cutting mechanism includes an adjusting component 1132 disposed on the rotating component 1131 and a cutting tool 1133 connected to the adjusting component 1132. The cutting end of the cutting tool 1133 faces the center of the rotating component 1131. The adjusting component 1132 is configured to adjust the relative position of the cutting tool 1133 and the pipe 400 to ensure accurate cutting position. When the rotating component 1131 rotates at high speed, the cutting tool 1133 can precisely cut the pipe 400, achieving a 360° circumferential cut. While rotating around the pipe 400, the cutting tool 1133 maintains axial synchronous movement with the pipe 400 and the moving platform 111, thus forming a vertical and flat cut on the continuously traveling pipe 400. The high-speed rotation capability of the rotating component 1131 ensures cutting efficiency, while the radial adjustment function of the cutting mechanism allows it to adapt to pipes 400 of different diameters, improving the versatility and flexibility of the equipment.

[0032] Please see Figures 1 to 5 In one embodiment of the present invention, the rotating component 1131 has a ring structure and can be made of a high-strength alloy material to ensure stability and rigidity during high-speed rotation. A hollow rotating platform 114 is provided on the moving stage 111. The rotating component 1131 is supported and rotatably mounted on the hollow rotating platform 114 by precision bearings and is driven by a high-performance servo motor via a synchronous pulley or direct drive. The servo motor provides high torque and high speed, ensuring that the rotating component 1131 reaches the required cutting speed in a short time and maintains stable rotation, thereby ensuring the continuity and quality of the cutting process. The hollow structure design of the rotating component 1131 allows the tube 400 to pass through freely, thus achieving online cutting. Its high-precision rotational characteristics, combined with the axial synchronous movement of the moving stage 111, jointly ensure that the laser cutting head draws a precise ring-shaped cutting trajectory on the tube 400, thereby achieving high-quality fixed-length cutting.

[0033] Please see Figures 1 to 5In one embodiment of the present invention, the cutting mechanism includes an adjusting member 1132 and a cutting tool 1133. Specifically, the cutting tool 1133 is a laser cutting head, which is connected to an external high-power fiber laser via an optical fiber to focus a high-energy laser beam onto the surface of the pipe 400, achieving non-contact cutting. The adjusting member 1132 can, for example, employ a precision linear guide and a ball screw mechanism, driven by a micro servo motor, enabling the laser cutting head to precisely approach or move away from the center of the pipe 400 radially. Two sets of adjusting members 1132 are mounted on the rotating member 1131, working together to adjust the relative position of the cutting tool 1133. This radial adjustment function allows the device to adapt to pipes 400 of different diameters; the radial position of the laser cutting head can be adjusted simply by controlling the system. During the cutting process, the laser cutting head, driven by the high-speed rotation of the rotating component 1131, applies a focused laser beam to the surface of the pipe 400, rapidly melting and vaporizing the metal. Simultaneously, auxiliary gas (such as oxygen, nitrogen, or compressed air) is ejected from the nozzle, blowing away the molten slag and forming a smooth cut. The laser cutting head offers high cutting speed, high precision, a small heat-affected zone, and good cut quality, making it particularly suitable for high-speed, high-precision online cutting. In other embodiments, the cutting tool 1133 can also be a plasma cutting head or other mechanical cutting tools. Combined with the precise control of the adjusting component 1132, the laser focus is always located on the cutting surface of the pipe 400, thereby ensuring both cutting efficiency and cutting quality.

[0034] Please see Figures 1 to 5 In one embodiment of the present invention, the discharge mechanism 120 is disposed at one end of the cutting device 100 near the conveying device 200, and is used to smoothly and quickly transfer the pipe section 410 from the cutting area to the downstream conveying device 200 after it is cut. The discharge mechanism 120 includes a flip plate fixing frame 121, a flip plate 122, and a tilting cylinder 123. The flip plate fixing frame 121 is fixed on the frame of the cutting device 100, and the flip plate 122 is connected to the flip plate fixing frame 121 by a hinge and is located below the pipe 400. One end of the tilting cylinder 123 is connected to the flip plate fixing frame 121, and the other end is connected to the flip plate 122. After the pipe 400 is cut into pipe segments 410 and falls onto the discharge mechanism 120 and is detected by the sensor, the control system issues a command to activate the tilting cylinder 123, which drives the tilting plate 122 to tilt, pushing the pipe segment 410 off the center line of the cutting device 100 and causing it to roll onto the adjacent conveying device 200. The tilting discharge mechanism 120 is simple in design, quick and reliable in operation, and can effectively prevent the pipe segments 410 from accumulating in the cutting area after cutting, ensuring the continuous operation of the cutting device 100; its smooth tilting action also reduces the impact and damage that the pipe segments 410 may suffer during transfer, protecting product quality.

[0035] Please see Figures 1 to 5In one embodiment of the present invention, the cutting device 100 further includes a slag suction assembly 130, which includes a movable support and a slag suction tube disposed on the movable support. The movable support is slidably connected to the guide rail of the mounting frame via a slider, allowing the slag suction tube to move axially. For example, the movable support can be controlled by a drive mechanism such as a servo motor and a rack and pinion to drive the slag suction tube to move axially, inserting it into the interior of the tube 400 from the end of the tube 400. When the external cutting head and the movable platform 111 advance synchronously with the tube 400, the internal slag suction tube also moves precisely synchronously through its independent drive mechanism, ensuring that its suction port is always located below or adjacent to the cutting point inside the tube 400. This efficiently removes slag, metal debris, and fumes generated during the cutting process, especially slag generated on the inner wall of the tube 400, preventing it from adhering to the inner wall and thus ensuring the cleanliness of the inner and outer walls of the tube 400 and the quality of the product. Simultaneously, it protects the optical components and mechanical parts of the cutting equipment from contamination, extends the equipment's service life, improves the air quality of the operating environment, and protects the health and safety of the operators.

[0036] Please see Figures 1 to 7 In one embodiment of the present invention, the conveying device 200 is a belt conveyor, which is located below the discharge mechanism 120 of the cutting device 100. It receives the pipe segment 410 transferred from the discharge mechanism 120 and smoothly conveys it to the downstream grinding device 300. The belt conveyor is driven by a motor, and its conveying speed is adjustable to adapt to different production rhythms. The belt surface is typically made of a high-friction coefficient material to prevent the pipe segment 410 from slipping or rolling during conveying. The belt conveyor has a simple structure, runs smoothly, and has low noise, enabling continuous and efficient conveying of the pipe segment 410, avoiding manual handling and improving automation. In other embodiments, the conveying device 200 can also be a roller conveyor, chain conveyor, etc., as long as it can achieve smooth and continuous conveying of the pipe segment 410. Precise control of the conveying device 200 ensures that the pipe segment 410 enters the grinding device 300 with the correct posture and time interval, achieving seamless connection between the cutting and grinding processes, thereby maintaining the continuity and high efficiency of the entire production line.

[0037] Please see Figures 1 to 7In one embodiment of the present invention, the grinding device 300 includes a clamping and rotating mechanism 310, at least one grinding mechanism 320, and a discharge chute 330. The clamping and rotating mechanism 310 is disposed at the end of the conveying device 200 and is used to receive the pipe segment 410 and clamp it, while driving the pipe segment 410 to rotate at high speed around its axis; the grinding mechanism 320 is configured to be able to approach or move away from the end of the pipe segment 410 along the axial direction of the pipe segment 410 to perform grinding operations on the cut end of the pipe 400; the discharge chute 330 is disposed below the clamping and rotating mechanism 310 and is used to collect the finished pipe segment 410 after grinding and guide it to the material frame. The grinding device 300 receives the cut pipe segment 410 via the conveying device 200 and immediately performs online grinding on its cut ends, effectively removing burrs and flash generated during the cutting process and improving the flatness and smoothness of the pipe segment 410's ends. The clamping and rotating mechanism 310 ensures the stable rotation of the pipe segment 410 during grinding, and the precise feed of the grinding mechanism 320 guarantees the grinding effect. This online grinding design avoids manual operation and secondary handling required for offline grinding, achieves consistency in grinding parameters, significantly improves production efficiency and product quality stability, and reduces labor costs and safety risks. After grinding, the pipe segment 410 is discharged through the discharge chute 330. The entire process is automated and continuous, realizing fully automated production from raw materials to finished pipe segment 410.

[0038] Please see Figures 1 to 7In one embodiment of the present invention, the pressing and rotating mechanism 310 includes a driving roller 311, a driven roller 312, and a pressing roller 313. After the pipe segment 410 is cut, it is first conveyed axially by the conveying device 200 to the position of the push plate 340 located on one side of the pressing and rotating mechanism 310. Then, the push plate 340 is pushed by the push plate drive member 350 on the side, such as a cylinder, to send the pipe segment 410 to be polished onto the pressing and rotating mechanism 310 for polishing. At the same time, the conveying device 200 continuously conveys the next pipe segment 410 after cutting to the position to be polished, realizing continuous conveying and polishing. The driving roller 311 and the driven roller 312 are located below the pipe segment 410 and are respectively powered by the driving roller motor 314 and the driven roller 312. The driving roller 312 is driven by a motor and rotates in the opposite direction, thereby driving the pipe segment 410 placed on it to rotate around its axis. The pressure roller 313 is positioned above the pipe segment 410 and is driven by a component such as a cylinder or hydraulic cylinder to press the pipe segment 410 downward, ensuring close contact between it and the driving roller 311 and the driven roller 312. This ensures that the pipe segment 410 does not slip during rotation. The pressure of the pressure roller 313 can be adjusted by a control system according to the pipe diameter and material, ensuring sufficient driving friction without crushing the thin-walled pipe. The three-roller pressing and rotating mechanism 310 provides stable support and driving force, allowing the pipe segment 410 to maintain high-speed and stable rotation during grinding, providing ideal grinding conditions for the grinding mechanism 320. Its stable pressing and rotation capabilities ensure the uniformity and consistency of grinding, thereby guaranteeing the grinding quality of the pipe segment 410 end. After grinding, the driven roller 312 moves backward under the drive of the cylinder, creating a gap between it and the driving roller 311. The ground pipe 400 can then fall into the material frame through the discharge chute 330. The driven roller 312 then moves forward and resets under the drive of the cylinder. The position of the driven roller 312 is precisely controlled by the control system to adapt to different pipe diameters.

[0039] Please see Figures 1 to 7 In one embodiment of the present invention, the lower pressure roller 313 is a rubber roller, and the pressing rotation mechanism 310 presses the surface of the pipe 400 symmetrically from both sides of the pipe section 410 using two symmetrically arranged double rubber rollers. The contact pressure between the rollers and the pipe 400 can be precisely adjusted by a cylinder to adapt to pipes 400 with different diameters and wall thicknesses, providing sufficient friction while avoiding damage to the surface of the pipe 400. The symmetrical pressing design with double rollers effectively reduces the possible wobble, jump, or slippage errors that may occur during the rotation of the pipe section 410. Compared with a single-roller pressing scheme, it significantly improves the stability and accuracy of the rotation of the pipe section 410, thereby ensuring the uniformity and consistency of the grinding effect. A rotary encoder is also installed on the shaft of the rubber roller to monitor the actual rotation speed and angle of the pipe section 410 in real time and feed the data back to the control system for precise closed-loop control of the rotation speed.

[0040] Please see Figures 1 to 7 In one embodiment of the present invention, there are two grinding mechanisms 320, which are symmetrically arranged on both sides of the clamping and rotating mechanism 310 along the axial direction of the pipe 400, and simultaneously grind the two cutting ends of the pipe segment 410. When the pipe segment 410 is driven to rotate by the clamping and rotating mechanism 310, the two grinding mechanisms 320 start simultaneously and feed inward along the axial direction of the pipe segment 410, grinding the left and right cutting ends of the pipe segment 410 respectively. The simultaneous grinding by the dual grinding mechanisms 320 greatly improves the grinding efficiency and matches the cutting speed, ensuring the cycle time of the entire production line. At the same time, the symmetrically arranged grinding mechanisms 320 can balance the grinding force, reduce the possible swaying or vibration of the pipe segment 410 during the grinding process, and further improve the stability and quality of grinding.

[0041] Please see Figures 1 to 7 In one embodiment of the present invention, the grinding mechanism 320 includes a grinding head 321 that can be linearly fed toward the end of the tube 400. The grinding head 321 is driven by a grinding head servo motor 322 and achieves precise axial feed through a ball screw mechanism. The grinding head 321 is a combined grinding head 321 containing at least two different grinding media. The grinding head 321 can be composed of a coarse grinding disc and a fine grinding disc connected in series or coaxially. For example, along the feed direction, a coarse grinding disc, such as a silicon carbide grinding wheel, is installed at the front end, which can quickly and efficiently remove burrs and flash, while a fine grinding disc, such as a steel wire wheel, is installed at the rear end, which can follow and perform fine grinding on the end to achieve higher surface finish requirements. Through the design of the combined grinding head 321, both coarse and fine grinding processes can be completed in one feed, simplifying the grinding process and improving grinding efficiency. Based on parameters such as the length of the pipe 400, the control system can automatically and precisely control the feed depth and feed speed of the grinding head 321 to ensure the uniformity and consistency of the grinding effect, thereby guaranteeing the high quality of the pipe section 410 port.

[0042] Please see Figures 1 to 7In one embodiment of the present invention, position sensors for detecting the position of the pipe 400 or pipe segment 410 are also provided on the production line. These position sensors are communicatively connected to the control system and include, but are not limited to, photoelectric sensors, proximity switches, encoders, etc. For example, position sensors are installed at the inlet and outlet of the cutting device 100, and at the inlet of the conveying device 200 and the grinding device 300, to detect the axial position of the pipe 400 or pipe segment 410. In the cutting device 100, the position sensors are used to accurately detect the starting cutting position of the pipe 400 and the position of the pipe segment 410 after cutting, and send these position signals to the control system in real time. In the conveying device 200 and the grinding device 300, the position sensors are used to detect whether the pipe segment 410 has reached the designated station and trigger corresponding clamping, rotation, or grinding actions. Each position sensor is communicatively connected to the control system, together forming a precise position feedback system. By acquiring the precise position information of the pipe 400 or pipe segment 410 in real time, the control system can achieve precise timing control and coordinated action of each link in the entire production line. For example, it can accurately determine when to start the synchronous movement of the cutting head, when to clamp the pipe 400, and when to start the grinding mechanism, ensuring seamless connection and precise coordination between each process. This avoids production interruptions or product defects caused by positional deviations, thereby ensuring the efficient and stable operation of the entire production line and the consistency of product quality.

[0043] Please see Figures 1 to 7 In one embodiment of the present invention, the control system is the core of the entire integrated production line for continuous pipe processing. For example, it can be a high-performance industrial computer (IPC) or a programmable logic controller (PLC), integrating a parameter self-tuning module, a fault diagnosis module, and a human-machine interface. Operators can input or switch parameters such as pipe specifications through the human-machine interface. The parameter self-tuning module is configured to automatically set processing parameters based on the input pipe specification parameters. The fault diagnosis module collects signals from key components in real time and compares them with preset safety thresholds. Upon detecting an abnormality, it immediately triggers an audible and visual alarm and displays the specific fault code and possible causes on the human-machine interface, guiding maintenance personnel to quickly locate and troubleshoot the fault, minimizing unplanned downtime.

[0044] Please see Figures 1 to 7In one embodiment of the present invention, the parameter self-tuning module can automatically optimize and adjust key process parameters such as the moving speed curve of the cutting execution unit 110, the rotational speed of the rotary cutting component 113, the laser power, the auxiliary gas pressure, and the feed speed and grinding force of the grinding device 300, based on parameters such as the real-time tube-making speed of the tube-making device, the material, wall thickness, and diameter of the tube 400, as well as preset cutting length and grinding requirements, through built-in intelligent algorithms (such as PID control, fuzzy control, or adaptive control algorithms). For example, when the laser velocimeter detects a slight fluctuation in the tube-making speed, the parameter self-tuning module can quickly calculate the optimal acceleration / deceleration curve of the moving stage 111 to ensure precise synchronization between the cutting head and the tube 400. This self-tuning function enables the system to dynamically adapt to changes in production conditions without frequent manual adjustments, thereby ensuring the stability and consistency of cutting and grinding quality under different working conditions, and greatly improving production efficiency and automation level.

[0045] Please see Figures 1 to 7 In one embodiment of the present invention, the fault diagnosis module monitors the operating status and parameters (such as current, voltage, temperature, pressure, position feedback, etc.) of all key components (such as servo motors, sensors, cylinders, lasers, etc.) on the production line in real time and compares them with preset normal operating thresholds. Once abnormal data or fault signals are detected, the fault diagnosis module immediately triggers an alarm and displays detailed fault information (such as faulty component, fault type, possible causes, and suggested handling measures) on the human-machine interface. It can even automatically execute some preset emergency shutdown or speed reduction operations to prevent the fault from escalating or causing equipment damage. For example, when the laser power output is abnormal or the cutting head temperature is too high, the system will immediately alarm and prompt maintenance personnel to check. This fault diagnosis function can promptly identify and resolve problems in the production process, reduce downtime, lower maintenance costs, and improve equipment reliability and the overall uptime of the production line.

[0046] Please see Figures 1 to 7 In one embodiment of the present invention, the human-machine interface includes a touch screen or industrial display, which provides operators with an intuitive and user-friendly interface. Operators can use this interface to set production parameters (such as the length, diameter, and grinding requirements of pipe segment 410), monitor the real-time operating status of the production line (such as pipe-making speed, cutting position, and grinding progress), view production data reports, and perform fault query and diagnosis. This interface also enables remote monitoring and control functions, allowing managers to easily monitor production status at any time.

[0047] It should be noted that the control system is the core of the collaborative control mechanism for dynamically matching the tube-making speed with laser cutting. It communicates in real-time with all actuators and sensors in the tube-making device, cutting device 100, conveying device 200, and grinding device 300 via a high-speed data bus. The control system establishes a dynamic correlation model between the tube-making speed and the axial movement speed of the laser cutting execution unit 110. This model comprehensively considers the real-time travel speed of the tube segment 410, the cutting length, the kinematic and dynamic characteristics of the equipment, and laser cutting process parameters (such as laser power and auxiliary gas pressure). Through complex motion control algorithms and predictive control strategies, it achieves precise control of the cutting execution unit 110. Based on the real-time tube-making speed provided by the laser velocimeter and combined with the preset cutting length, the control system can accurately calculate and automatically adjust the laser cutting frequency, cutting path, and start / stop timing. During the cutting process, the control system continuously compares the actual speed with the target speed and performs closed-loop feedback control to ensure that the speed of the moving platform 111 is always consistent with the speed of the tube 400. At the same time, it also coordinates the clamping / releasing sequence of the clamping assembly 112, the start / stop and rotation speed of the rotating cutting assembly 113, the flipping action of the discharge mechanism 120, the conveying speed of the conveying device 200, and the clamping, rotation, and grinding feed of the grinding device 300. This dynamic correlation model and automatic adjustment mechanism enable the entire "tube-making-cutting" process to achieve lag-free synchronization. That is, when the tube-making speed fluctuates, the cutting execution unit 110 can respond quickly and accurately and adjust its movement to ensure that the relative position of the cutting point on the tube 400 remains stable. Thus, even when the tube 400 is traveling continuously at high speed, high-precision and high-quality fixed-length cutting can still be achieved. Through highly integrated collaborative control, the entire production line can operate efficiently as an organic whole, achieving fully automated, continuous, and high-precision processing from raw materials to final products. This significantly improves production efficiency and product quality, while substantially reducing labor costs and energy consumption.

[0048] Please see Figures 1 to 7 In one embodiment of the present invention, in actual production, the tube-making device first processes the tube 400 into shape and continuously conveys it from the output end of the tube-making device to the cutting device 100 at a stable axial speed. After the tube 400 enters the entrance of the cutting device 100, the laser velocimeter measures the instantaneous axial travel speed of the tube 400 in real time and with high precision. This real-time speed data is continuously sent to the control system through a high-speed communication interface as the basic input for subsequent cutting synchronization control, ensuring that the entire production line can produce with a continuous and stable flow of tubes, and providing real-time speed feedback for subsequent precise cutting, thus laying the foundation for achieving high-precision cutting.

[0049] Please see Figures 1 to 7In one embodiment of the present invention, after receiving the real-time pipe-making speed provided by the speed detection unit, the control system, in conjunction with the pipe cutting length preset by the operator, immediately activates its internal motion control algorithm. Based on the real-time pipe-making speed and the preset cutting length, the control system accurately calculates the motion trajectory and speed curve of the cutting execution unit 110 (including a moving platform 111, a clamping assembly 112, and a rotating cutting assembly 113). When the next cutting point of the pipe 400 is about to reach the starting position of the cutting execution unit 110, the control system issues a command to drive the servo motor on the moving platform 111, causing the moving platform 111 to begin accelerating. By precisely controlling this acceleration process, the axial movement speed of the moving platform 111 is perfectly matched with the real-time pipe-making speed before cutting begins. When the speed of the moving platform 111 is completely synchronized with the traveling speed of the pipe 400, the control system immediately controls the clamping assembly 112 to quickly clamp the pipe 400, ensuring no relative movement between the pipe 400 and the moving platform 111. Next, the laser cutting head in the rotary cutting assembly 113 is activated and rotates at high speed around the axis of the clamped tube 400, emitting a high-energy laser beam to perform a 360° circular cut on the tube 400. Throughout the cutting process, the moving stage 111, the clamped tube 400, and the rotary cutting assembly 113 move forward synchronously at a speed completely consistent with the real-time tube-making speed. Through this dynamically matched synchronous cutting method, it is ensured that the cutting line drawn by the laser cutting head on the tube 400 is always perpendicular to the axis of the tube 400, thereby ensuring a smooth cut without any bevels, greatly improving cutting accuracy and efficiency, and achieving high-quality fixed-length cutting while the tube 400 is moving at high speed continuously.

[0050] Please see Figures 1 to 7 In one embodiment of the present invention, after the cutting execution unit 110 completes the fixed-length cutting of the pipe 400, the control system immediately issues a command to cause the clamping assembly 112 to quickly release the cut pipe segment 410. Simultaneously, the servo motor on the moving platform 111 reverses its direction, causing the moving platform 111 to quickly return to the starting position of its working stroke, ready for the next cut. After the pipe segment 410 is cut and released, the discharge mechanism 120 located downstream of the cutting execution unit 110 immediately starts. The control system controls the tilting cylinder 123 to operate, driving the tilting plate 122 to tilt upwards, smoothly pushing the just-cut pipe segment 410 above it away from the cutting area, causing it to roll onto the adjacent belt conveyor. The belt conveyor then starts or adjusts its speed to receive the pipe segment 410 and continuously and smoothly transports it to the inlet of the grinding device 300 at a preset speed. The efficient release, return, and discharge mechanism ensures seamless connection between the cutting process and subsequent conveying processes, maximizes the utilization rate of the cutting device 100, and prevents the accumulation of pipe sections 410 in the cutting area, thereby maintaining the continuity and high efficiency of the entire production line.

[0051] Please see Figures 1 to 7 In one embodiment of the present invention, when the pipe segment 410 is conveyed to the inlet of the grinding device 300 by the conveying device 200, the position sensor at that location detects the arrival of the pipe segment 410 and activates the push plate drive 350, which pushes the pipe segment 410 onto the pressing and rotating mechanism 310 via the push plate 340. After the position sensor at the pressing and rotating mechanism 310 detects the arrival of the pipe segment 410, it sends a signal to the control system. The control system then controls the pressing and rotating mechanism 310 of the grinding device 300 to start. The active roller 311 and the driven roller 312 drive the pipe segment 410 to rotate at high speed around its axis. At the same time, the pressing roller 313 presses the pipe segment 410 to ensure stable rotation without slippage. Then, the control system controls the two grinding mechanisms 320 to start synchronously and drives their grinding heads 321 to feed precisely inward along the axial direction of the pipe segment 410, grinding the two cutting ends of the pipe segment 410 respectively. The grinding head 321 is a combined grinding head containing a coarse grinding disc and a fine grinding disc, which can complete burr removal and end finishing in a single feed. After grinding, the grinding head 321 quickly retracts, and the clamping and rotating mechanism 310 releases the pipe section 410. Finally, the ground pipe section 410 is discharged through the discharge chute 330 and enters the subsequent collection or packaging stage. Through online, synchronous, and efficient grinding, burrs and flash at the cut ends are thoroughly removed, significantly improving the end quality of the pipe section 410 and the added value of the product. It avoids the manual operation and secondary handling of traditional offline grinding, further realizing the full automation and intelligence of the production line, thereby greatly reducing labor costs and improving production efficiency.

[0052] In summary, the integrated continuous processing production line for pipe fittings proposed in this invention constructs a fully automated continuous production line from raw materials to finished products through the integration and dynamic collaborative control of pipe manufacturing, online cutting, and grinding processes. This eliminates accumulation and secondary handling between processes, significantly improving production efficiency and reducing costs and damage risks. By combining real-time speed measurement and motion control algorithms, the cutting unit achieves precise and synchronous cutting of the high-speed traveling pipe 400, ensuring high-quality cuts without interruption. The symmetrical double-head grinding mechanism combining "rough grinding + fine polishing" achieves efficient and consistent burr removal from pipe ends. Through an intelligent control system integrating parameter self-tuning and multi-sensor feedback, the production line achieves adaptive optimization, improving product consistency while ensuring the stability and flexibility of the production process, greatly enhancing production efficiency.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0054] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the invention. However, those skilled in the art will recognize that embodiments of the invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

[0055] Throughout this specification, the terms "an embodiment," "embodiment," or "specific embodiment" refer to a particular feature, structure, or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the invention.

[0056] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0057] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0058] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0059] The above description of the embodiments shown in this invention (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the invention to the precise forms disclosed herein. Although specific embodiments and examples of the invention have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the invention, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the invention in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the invention.

[0060] This document has generally described the systems and methods in detail to aid in understanding the invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the invention. However, those skilled in the art will recognize that embodiments of the invention can be practiced without one or more specific details, or using other means, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

[0061] Therefore, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the foregoing disclosure, and it should be understood that in some cases, certain features of the invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the following claims and / or the specific embodiments disclosed as the best mode for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the invention will be defined only by the appended claims.

Claims

1. A continuous integrated production line for pipe fittings, characterized in that, include: Tube-making equipment, used to continuously form and weld metal strips into tubes; A cutting device is disposed at the pipe output end of the pipe making device and is used to cut the pipe to a fixed length. The cutting device includes a speed detection unit for detecting the real-time pipe making speed and a cutting execution unit for cutting the pipe. A conveying device, located at the end of the cutting device, is used to receive and convey the cut pipe segment; A grinding device, connected to the cutting device via the conveying device, is used to grind the cut ends of the pipe section; The control system is electrically connected to the tube-making device, the cutting device, the conveying device, and the grinding device, respectively. The control system is configured to control the cutting execution unit to move synchronously with the continuously moving tube and perform fixed-length cutting based on the real-time tube-making speed detected by the speed detection unit.

2. The integrated production line for continuous processing of pipe fittings according to claim 1, characterized in that, The cutting execution unit includes: A movable platform is provided along the conveying direction of the pipe, and the movable platform is configured to reciprocate along the conveying direction of the pipe. A clamping assembly is disposed on the movable platform and surrounds the pipe for clamping or releasing the pipe; A rotary cutting assembly is disposed on the movable platform and is configured to rotate about the axis of the pipe and cut the pipe.

3. The integrated production line for continuous processing of pipe fittings according to claim 2, characterized in that, The rotary cutting assembly includes: A rotating component having a hollow structure for the tubing to pass through, the rotating component being configured to rotate about the axis of the tubing; A cutting mechanism, comprising an adjusting member disposed on the rotating member and a cutting tool connected to the adjusting member, wherein the cutting end of the cutting tool faces the center of the rotating member, and the adjusting member is configured to adjust the relative position of the cutting tool and the pipe.

4. The integrated production line for continuous processing of pipe fittings according to claim 3, characterized in that, The cutting tool is a laser cutting head.

5. The integrated production line for continuous processing of pipe fittings according to claim 1, characterized in that, The cutting device also includes a discharge mechanism, which is located at one end of the cutting device near the conveying device and is used to transfer the pipe section to the conveying device.

6. The integrated production line for continuous processing of pipe fittings according to claim 1, characterized in that, The polishing device includes: A clamping and rotating mechanism is used to clamp and drive the pipe segment to rotate about its axis; At least one grinding mechanism is configured to approach or move away from the end of the pipe section along its axial direction to perform a grinding operation on the cut end of the pipe.

7. The integrated production line for continuous processing of pipe fittings according to claim 6, characterized in that, The grinding mechanism consists of two parts, which are symmetrically arranged on both sides of the clamping and rotating mechanism along the pipe axis, and simultaneously grind the two cutting ends of the pipe section.

8. The integrated production line for continuous processing of pipe fittings according to claim 6, characterized in that, The grinding mechanism includes a grinding head that can be fed linearly toward the end of the pipe, and the grinding head is a combination grinding head containing at least two different grinding media.

9. The integrated production line for continuous processing of pipe fittings according to claim 1, characterized in that, The control system includes a parameter self-tuning module, which is configured to automatically set processing parameters based on the input pipe specification parameters.

10. The integrated production line for continuous processing of pipe fittings according to claim 1, characterized in that, It also includes a position sensor for detecting the position of the pipe or the pipe segment, the position sensor being communicatively connected to the control system.

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