A marine pipeline cutting device

Abstract

The application discloses a kind of ship pipeline cutting device, it is related to pipeline cutting technical field, device includes bottom plate, its top surface left and right sides are respectively fixed first, second side plate, two plates are opened with circular through hole, and transverse pipeline is arranged between through hole.The right side of first side plate is fixed with three first U-shaped sliding plate;Second side plate left side is equipped with three second U-shaped sliding plate.Corresponding U-shaped sliding plate is fixed with fixed horizontal plate, and rubber roller is installed in the middle of horizontal plate and is resisted on the outer surface of pipeline.The top surface of fixed plate of the left side of first side plate bottom is provided with U-shaped vertical plate in two corners, and T-shaped plate is slidably connected between the U-shaped vertical plate, fourth motor is installed in the top square hole of T-shaped plate, and metal cutting wheel is sleeved on the middle of motor shaft, can cut pipeline bottom left side upward.The device is cooperated by multiple components, realizes pipeline automatic positioning, stable rotation and accurate cutting, solves the problem that manual adjustment is not accurate, improves cutting efficiency and quality, and is suitable for ship pipeline cutting.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, and more particularly to a ship pipe cutting device. Background Technology

[0002] Under the current shipbuilding pipe cutting technology, the pipe positioning process has significant shortcomings. Traditional methods rely heavily on manual adjustment, which is not only cumbersome and inefficient, but also makes it difficult to accurately control positioning precision. This can easily lead to pipe misalignment during the cutting process, affecting cutting quality and subsequent installation compatibility. Furthermore, the lack of automated positioning mechanisms makes it difficult to standardize and streamline the process, hindering the mass production demands of pipe cutting in shipbuilding and maintenance.

[0003] Existing technologies also face numerous challenges in terms of cutting operation and stability. On the one hand, adjusting the cutting height is inconvenient, making it difficult to quickly adapt to different specifications of ship pipes, requiring frequent equipment changes or complex manual adjustments, which severely restricts operational efficiency. On the other hand, during the cutting process, the pipe is not fixed stably and is prone to shaking, leading to a decrease in cutting accuracy, uneven cuts, dimensional deviations, and other problems, increasing material waste and rework costs, and failing to guarantee the high efficiency and high quality requirements of ship pipe cutting operations. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that traditional cutting devices in the prior art cannot provide sufficient flexibility and cutting accuracy, and to propose a ship pipe cutting device.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A ship pipe cutting device includes a base plate, a first side plate fixedly disposed on the left side of the top surface of the base plate, the first side plate having a first circular through hole, a second side plate fixedly disposed on the right side of the top surface of the base plate, the second side plate having a second circular through hole, and a transversely distributed pipe between the first circular through hole and the second circular through hole.

[0007] Three first I-shaped slide rails are fixedly provided on the right side surface of the first side plate, arranged in a circular pattern around the first circular through hole, and a first U-shaped slide plate is slidably fitted on each of the first I-shaped slide rails; three second I-shaped slide rails are fixedly provided on the left side surface of the second side plate, arranged in a circular pattern around the second circular through hole, and a second U-shaped slide plate is slidably fitted on each of the second I-shaped slide rails.

[0008] A horizontally distributed fixed plate is fixed between the corresponding first U-shaped slide plate and the second U-shaped slide plate. A vertically distributed fixed lug is fixed in the middle of each fixed plate. A first motor with its output end passing through the fixed lug is fixedly installed on the left side of each fixed lug. A rubber roller is concentrically fixed at the end of the motor shaft of each first motor. Each rubber roller abuts against the outer surface of the pipe.

[0009] A fixing plate is fixedly provided on the bottom left side of the first side plate. A pair of symmetrically distributed U-shaped vertical plates are fixedly provided at the two corners on the top left side of the fixing plate. A T-shaped plate is slidably fitted between the pair of U-shaped vertical plates. A second square hole is opened on the top of the T-shaped plate. A fourth motor with the output end facing outward is fixedly installed inside the second square hole. A metal cutting wheel is concentrically fixedly fitted in the middle of the motor shaft of the fourth motor. The metal cutting wheel cuts upward on the left side of the bottom surface of the pipe.

[0010] Preferably, three driven shafts arranged in a circular pattern around the first circular through hole are rotatably inserted on the right side surface of the first side plate. A driven swing arm is fixed in the middle of each driven shaft, a limiting roller is rotatably inserted at the outer end of each driven swing arm, and a limiting roller is concentrically fixed at the outer end of each limiting roller.

[0011] Preferably, each driven shaft is fitted with a concentrically fixed driven gear at its outer end, and each of the first U-shaped slide plates is fixed with an L-shaped rack on one side. Each driven gear is located between the corresponding first U-shaped slide plate and the L-shaped rack, and each driven gear is meshed with the corresponding L-shaped rack.

[0012] Preferably, the second circular through hole is provided with a double-strand retaining ring inside, and a hollow rotating cylinder is fixedly inserted inside the double-strand retaining ring. A hollow rotating disk is fitted in the middle of the hollow rotating cylinder and fixedly connected in a concentric manner. The hollow rotating disk has three arc-shaped pin holes distributed in a circle.

[0013] Preferably, the second side plate has three trapezoidal through holes arranged in a circle around the second circular through hole. Each first U-shaped slide plate is fixed with a first ear seat, and each second U-shaped slide plate is fixed with a second ear seat. A fixed long rod is fixed between the outer ends of the corresponding first ear seat and second ear seat. The right end of each fixed long rod passes through the corresponding trapezoidal through hole and is slidably inserted into the corresponding arc-shaped pin hole.

[0014] Preferably, a large-diameter pulley is concentrically fixed to the right end of the hollow rotating drum, a first square hole is opened at the bottom of the second side plate, a second motor with its output end facing outward is fixedly installed inside the first square hole, and a small-diameter pulley is concentrically fixed to the end of the motor shaft of the second motor. The small-diameter pulley is connected to the large-diameter pulley through a drive belt.

[0015] Preferably, the bottom of the T-shaped plate is provided with a rectangular pin hole, and the bottom of the first side plate is provided with a third rectangular hole. A third motor with its output end facing outward is fixedly installed inside the third rectangular hole. A crank is fixedly provided at the end of the motor shaft of the third motor, and a limiting pin is fixedly provided at the outer end of the crank. The outer end of the limiting pin is slidably inserted into the rectangular pin hole.

[0016] Preferably, a protective cover is fixed on the left side of the T-shaped plate, the motor shaft of the fourth motor rotates through the protective cover, and the metal cutting wheel is located inside the protective cover. A flush notch one and a flush notch two are respectively opened on the top and bottom of the protective cover. A pair of U-shaped notches are opened on both sides of the flush notch one, and a pair of single ear seats are fixed on both sides of the U-shaped notches.

[0017] Preferably, an arc-shaped hinge plate is hinged between the pair of single ear seats, and an arc-shaped wear-resistant plate is fixed on the inner arc surface of the arc-shaped hinge plate. The inner arc surface of the arc-shaped wear-resistant plate abuts against the outer wall of the pipe. An inclined plate is fixed in the middle of the U-shaped notch, and a tension spring is fixed between the outer end of the inclined plate and the middle of the outer arc surface of the arc-shaped hinge plate.

[0018] Preferably, the outer surface of the rubber roller is provided with a plurality of transverse grooves and longitudinal grooves, and the plurality of transverse grooves and longitudinal grooves intersect perpendicularly to form a plurality of anti-slip grooves distributed in a circle on the outer surface of the limiting roller, and the limiting roller abuts against the outer surface of the pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the base plate, the first side plate and the second side plate constitute a basic frame to provide installation support for the device. The circular through holes in the side plates allow the pipe to pass through and be positioned, ensuring installation stability. The I-shaped slide rail and the U-shaped sliding plate cooperate to adjust the position of the rubber rollers so that they fit against the outer wall of the pipe, creating conditions for clamping and rotating the pipe and achieving flexible adjustment.

[0021] The first motor drives the rubber roller to rotate, which in turn drives the pipe to rotate through friction, becoming the power source for the pipe's rotation and ensuring continuous rotational power. The driven shaft, driven swing arm, and limit roller form a positioning structure. As the U-shaped slide slides, the limit roller abuts against the pipe to achieve concentric positioning and ensure stable rotation. The grooved design on the surfaces of the rubber roller and the limit roller increases friction and provides anti-slip effect.

[0022] 2. In this invention, components such as the double-strand retaining ring, hollow rotating cylinder, hollow turntable, and arc-shaped pin hole cooperate with the fixed long rod. Driven by the second motor, power is transmitted through the belt transmission system to realize the automatic sliding of the first U-shaped slide plate and the second U-shaped slide plate. The automatic positioning mechanism solves the problems of insufficient accuracy and low efficiency in pipeline adjustment and positioning. It eliminates the need for manual adjustment and achieves accurate positioning through mechanical transmission, thereby improving positioning efficiency and accuracy.

[0023] 3. In this invention, the third motor drives the crank to rotate, and through the cooperation of the limiting pin and the rectangular pin hole, it drives the T-shaped plate to rise and fall, realizing the automatic adjustment of the cutting height of the metal cutting wheel to adapt to different cutting needs; the arc-shaped hinge plate, arc-shaped wear-resistant plate and tension spring on the protective cover form an anti-sway structure. During cutting, the tension spring pulls the arc-shaped wear-resistant plate against the pipe, limiting the pipe swaying and ensuring cutting stability and accuracy. The protective cover also protects the cutting wheel.

[0024] In summary, this invention achieves automatic positioning, stable rotation, and precise cutting of pipelines through the coordinated operation of multiple components, solving problems such as inaccurate manual adjustment and cutting wobbling, thus improving cutting efficiency and quality. Its reasonable structural design makes it suitable for pipeline cutting operations on ships. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0028] Figure 3 This is a schematic diagram of the overall structure of the present invention (excluding the cylindrical body);

[0029] Figure 4 This is a schematic diagram of the first side plate and three first U-shaped sliding plates of the present invention;

[0030] Figure 5 This is an exploded view of the first side plate and the three first U-shaped sliding plate structures of the present invention;

[0031] Figure 6 This is a schematic diagram of the fixed cross plate and rubber roller structure of the present invention;

[0032] Figure 7 This is an exploded view of the fixed cross plate and rubber roller structure of the present invention;

[0033] Figure 8 This is a schematic diagram of the second side plate and hollow turntable structure of the present invention;

[0034] Figure 9 This is an exploded view of the second side plate and hollow turntable structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the first side plate, fixing plate, and protective cover structure of the present invention;

[0036] Figure 11 This is an exploded view of the first side plate, fixing plate, and protective cover structure of the present invention;

[0037] In the diagram: 100, base plate; 101, pipe; 102, fixed cross plate; 103, fixed lug; 104, first motor; 105, rubber roller; 106, first lug; 107, second lug; 108, fixed long rod; 200, first side plate; 201, first I-beam slide rail; 202, first U-shaped slide plate; 203, L-shaped rack; 204, driven shaft; 205, driven gear; 206, driven swing arm; 207, limiting roller shaft; 208, limiting roller; 300, second side plate; 301, second I-beam slide rail; 302, second U-shaped... Skateboard; 303, Double-strand clasp; 304, Hollow rotary drum; 305, Hollow turntable; 306, Arc-shaped pin hole; 307, Trapezoidal through hole; 308, Second motor; 309, Drive belt; 400, Fixing plate; 401, U-shaped vertical plate; 402, Third motor; 403, Crank; 404, Limit pin shaft; 405, T-shaped plate; 406, Rectangular pin hole; 407, Protective cover; 408, Single ear seat; 409, Inclined plate; 410, Tension spring; 411, Arc-shaped hinge plate; 412, Arc-shaped wear-resistant plate; 413, Metal cutting wheel; 414, Fourth motor. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Example 1: This example provides a ship pipe cutting device, see below. Figures 1-11Specifically, the device includes a base plate 100, a first side plate 200 fixedly mounted on the left side of the top surface of the base plate 100, a first circular through hole on the first side plate 200, a second side plate 300 fixedly mounted on the right side of the top surface of the base plate 100, a second circular through hole on the second side plate 300, and a transversely distributed pipe 101 between the first circular through hole and the second circular through hole. The base plate 100, the first side plate 200, and the second side plate 300 constitute the basic frame of the device and provide an installation support platform. The circular through holes of the first side plate 200 and the second side plate 300 are used for the pipe 101 to pass through and be positioned.

[0040] Three first I-shaped slide rails 201 are fixedly provided on the right side surface of the first side plate 200, arranged in a circular pattern around the first circular through hole. A first U-shaped slide plate 202 is slidably fitted on each first I-shaped slide rail 201. Three second I-shaped slide rails 301 are fixedly provided on the left side surface of the second side plate 300, arranged in a circular pattern around the second circular through hole. A second U-shaped slide plate 302 is slidably fitted on each second I-shaped slide rail 301. The first I-shaped slide rails 201, the first U-shaped slide plate 202, the second I-shaped slide rails 301, and the second U-shaped slide plate 302 enable the adjustment of the position of the rubber roller 105, so that it fits against the outer wall of the pipe 101, providing conditions for clamping and rotating the pipe 101.

[0041] A horizontally distributed fixed plate 102 is fixed between the corresponding first U-shaped sliding plate 202 and second U-shaped sliding plate 302. A vertically distributed fixed ear 103 is fixed in the middle of each fixed plate 102. A first motor 104 with its output end passing through the fixed ear 103 is fixedly installed on the left side of each fixed ear 103. A rubber roller 105 is concentrically fixed at the end of the motor shaft of each first motor 104. Each rubber roller 105 abuts against the outer surface of the pipe 101. The first motor 104 drives the rubber roller 105 to rotate, and drives the pipe 101 to rotate through friction, which is the power source for the rotation of the pipe 101.

[0042] A fixing plate 400 is fixedly installed on the bottom left side of the first side plate 200. A pair of symmetrically distributed U-shaped vertical plates 401 are fixedly installed at the two corners on the left side of the top surface of the fixing plate 400. A T-shaped plate 405 is slidably fitted between the pair of U-shaped vertical plates 401. A second square hole is opened on the top of the T-shaped plate 405. A fourth motor 414 with the output end facing outward is fixedly installed inside the second square hole. A metal cutting wheel 413 is concentrically fixedly fitted in the middle of the motor shaft of the fourth motor 414. The metal cutting wheel 413 cuts upward on the left side of the bottom surface of the pipe 101. The fourth motor 414 drives the metal cutting wheel 413 to cut the rotating pipe 101.

[0043] It should be noted that in this embodiment, three driven shafts 204 arranged in a circular pattern around the first circular through hole are rotatably inserted on the right side surface of the first side plate 200. A driven swing arm 206 is fixed in the middle of each driven shaft 204, and a limiting roller shaft 207 is rotatably inserted at the outer end of each driven swing arm 206. A limiting roller 208 is sleeved on the outer end of each limiting roller shaft 207.

[0044] Each driven shaft 204 has a driven gear 205 concentrically fixed at its outer end. Each first U-shaped slide plate 202 has an L-shaped rack 203 fixed on one side. Each driven gear 205 is located between the corresponding first U-shaped slide plate 202 and L-shaped rack 203, and the driven gear 205 is meshed with the corresponding L-shaped rack 203. The L-shaped rack 203 moves with the first U-shaped slide plate 202, driving the driven gear 205 and other components, so that the limiting roller 208 abuts against the pipe 101, playing the role of concentric positioning and stable rotation.

[0045] The outer surface of the rubber roller 105 is provided with several transverse grooves and longitudinal grooves, and the transverse grooves and longitudinal grooves intersect perpendicularly. The outer surface of the limiting roller 208 is provided with several circularly distributed anti-slip grooves. The limiting roller 208 abuts against the outer surface of the pipe 101, and the limiting roller 208 ensures the stability of the rotation of the pipe 101.

[0046] The working principle of this embodiment is as follows: When cutting the ship pipe 101, the pipe 101 is first inserted horizontally through the first circular through hole of the first side plate 200 and the second circular through hole of the second side plate 300. Then, the first U-shaped sliding plate 202 slides along the first I-shaped slide rail 201 toward the pipe 101. At the same time, the second U-shaped sliding plate 302 slides synchronously along the second I-shaped slide rail 301. Through the connecting action of the fixed horizontal plate 102, the fixed lug 103 and the rubber roller 105 installed thereon are driven to move toward the pipe 101 together until the rubber roller 105 is tightly attached to the outer wall of the pipe 101.

[0047] During the sliding of the first U-shaped slide plate 202, the L-shaped rack 203 fixed on its side moves synchronously. Since the L-shaped rack 203 meshes with the driven gear 205, the movement of the L-shaped rack 203 drives the driven gear 205 to rotate, which in turn drives the concentrically fixed driven shaft 204 and driven swing arm 206 to rotate together. When the driven swing arm 206 rotates, it drives the limiting roller shaft 207 at its outer end and the limiting roller 208 sleeved on it to move until the limiting roller 208 abuts against the surface of the pipe 101. At this time, the three circularly distributed limiting rollers 208 and the three rubber rollers 105 cooperate with each other to constrain the pipe 101 from multiple directions, realize the concentric positioning of the pipe 101, and ensure that the pipe 101 is in the center position of the device, providing a stable foundation for subsequent cutting operations.

[0048] After the positioning of pipe 101 is completed, three first motors 104 are started. The motor shafts of the first motors 104 output power, driving the rubber rollers 105 sleeved on the ends of the shafts to rotate synchronously. The specially designed transverse and longitudinal grooves on the outer surface of the rubber rollers 105 intersect each other perpendicularly, increasing the friction between them and pipe 101. Under the action of friction, the rubber rollers 105 drive pipe 101 to rotate, and pipe 101 synchronously drives the limiting rollers 208 to rotate as well. At the same time, the fourth motor 414 installed in the second square hole at the top of the T-shaped plate 405 is started. Its motor shaft drives the metal cutting wheel 413 to rotate at high speed and cut the left side of the bottom surface of the rotating pipe 101 upwards. With the synergistic effect of the rubber rollers 105 continuously driving the pipe 101 to rotate and the metal cutting wheel 413 continuously cutting, the cutting operation of pipe 101 is gradually completed.

[0049] Example 2: Based on Example 1, this example uses a second motor 308, belt pulley drive, and hollow turntable 305 to achieve automatic positioning of pipe 101, solving the problems of inaccurate positioning and low efficiency of pipe 101. It also includes:

[0050] In the specific implementation process, such as Figure 7 and Figure 9 As shown, a double-strand retaining ring 303 is rotatably installed inside the second circular through hole. A hollow rotating cylinder 304 is fixedly inserted inside the double-strand retaining ring 303. A hollow rotating disk 305 is concentrically fixed in the middle of the hollow rotating cylinder 304. Three arc-shaped pin holes 306 are opened on the hollow rotating disk 305. The double-strand retaining ring 303, hollow rotating cylinder 304, hollow rotating disk 305, arc-shaped pin holes 306 cooperate with the fixed long rod 108. Under the drive of the second motor 308, the first U-shaped sliding plate 202 and the second U-shaped sliding plate 302 automatically slide, and the pipe 101 is automatically positioned.

[0051] The second side plate 300 has three trapezoidal through holes 307 arranged in a circle around the second circular through hole. Each first U-shaped slide plate 202 is fixed with a first ear seat 106, and each second U-shaped slide plate 302 is fixed with a second ear seat 107. A fixed long rod 108 is fixed between the outer ends of the corresponding first ear seat 106 and second ear seat 107. The right end of each fixed long rod 108 passes through the corresponding trapezoidal through hole 307 and is slidably inserted into the corresponding arc-shaped pin hole 306. The trapezoidal through hole 307, the first ear seat 106, the second ear seat 107, and the fixed long rod 108 are used to connect the first U-shaped slide plate 202 and the second U-shaped slide plate 302, and cooperate with the arc-shaped pin hole 306 of the hollow turntable 305 to realize the automatic sliding of the first U-shaped slide plate 202 and the second U-shaped slide plate 302.

[0052] A large-diameter pulley is concentrically fixed to the right end of the hollow drum 304. A first square hole is opened at the bottom of the second side plate 300. A second motor 308 with its output end facing outward is fixedly installed inside the first square hole. A small-diameter pulley is concentrically fixed to the end of the motor shaft of the second motor 308. The small-diameter pulley is connected to the large-diameter pulley through the drive belt 309. The second motor 308, the small-diameter pulley, the drive belt 309, and the large-diameter pulley form a belt drive system, which transmits the power of the second motor 308 to the hollow drum 304 to provide power for automatic positioning.

[0053] The working principle of this embodiment is as follows: First, the pipe 101 is passed through the first circular through hole of the first side plate 200 and the second circular through hole of the second side plate 300 to complete the initial installation; then, the second motor 308 installed in the first square hole at the bottom of the second side plate 300 is started, and the motor shaft of the second motor 308 drives the small-diameter pulley, which is concentrically fixed, to rotate at high speed; the small-diameter pulley transmits power efficiently to the large-diameter pulley sleeved on the right end of the hollow drum 304 through the drive belt 309, thereby driving the hollow drum 304 to start rotating; since the hollow turntable 305 is concentrically fixed to the hollow drum 304, and the double-strand retaining ring 303 is connected to the hollow drum 304, the hollow turntable 305 and the double-strand retaining ring 303 will rotate synchronously with the hollow drum 304 along the second circular through hole;

[0054] During the rotation of the hollow turntable 305, the circularly distributed arc-shaped pin holes 306 play a crucial role. Each fixed long rod 108, which passes through the corresponding first ear seat 106 and second ear seat 107, has its right end inserted into the arc-shaped pin hole 306, forming a limiting fit with the arc-shaped pin hole 306. As the hollow turntable 305 rotates, the position of the arc-shaped pin holes 306 changes. Under the limiting action, the fixed long rod 108 is driven to move. The movement of the fixed long rod 108 will synchronously pull the first U-shaped slide plate 202 to slide along the first I-shaped slide rail 201 towards the pipe 101, and at the same time drive the second U-shaped slide plate 302 to slide synchronously along the second I-shaped slide rail 301.

[0055] Through the connection of the fixed horizontal plate 102, the sliding of the first U-shaped sliding plate 202 and the second U-shaped sliding plate 302 will drive the fixed ear 103 and the rubber roller 105 installed thereon to move together toward the pipe 101; as the sliding continues, the rubber roller 105 finally fits tightly against the outer wall of the pipe 101, completing the automatic positioning and clamping of the pipe 101; subsequently, similar to Embodiment 1, the three first motors 104 are started to drive the rubber roller 105 to rotate, driving the pipe 101 to rotate, while the fourth motor 414 drives the metal cutting wheel 413 to cut the pipe 101, realizing efficient and precise pipe 101 cutting operation.

[0056] Example 3: Based on Example 2, this example improves the structure of the T-shaped plate 405 and the pair of arc-shaped wear-resistant plates 412, solving the problems of inconvenient cutting height adjustment and easy shaking of the pipe 101 during cutting, which leads to a decrease in cutting accuracy, that existed in Example 2. It also includes:

[0057] In the specific implementation process, such as Figure 2 and Figure 11 As shown, a rectangular pin hole 406 is provided at the bottom of the T-shaped plate 405, and a third rectangular hole is provided at the bottom of the first side plate 200. A third motor 402 with its output end facing outward is fixedly installed inside the third rectangular hole. A crank 403 is fixedly provided at the end of the motor shaft of the third motor 402, and a limiting pin 404 is fixedly provided at the outer end of the crank 403. The outer end of the limiting pin 404 is slidably inserted into the rectangular pin hole 406. The third motor 402 drives the crank 403 to rotate. Through the cooperation of the limiting pin 404 and the rectangular pin hole 406, the T-shaped plate 405 is driven to rise and fall, so as to realize the automatic adjustment of the cutting height of the metal cutting wheel 413.

[0058] A protective cover 407 is fixedly installed on the left side of the T-shaped plate 405. The motor shaft of the fourth motor 414 rotates through the protective cover 407, and the metal cutting wheel 413 is located inside the protective cover 407. The top and bottom of the protective cover 407 are respectively provided with a flush notch one and a flush notch two. A pair of U-shaped notches are provided on both sides of the flush notch one, and a pair of single ear seats 408 are fixed on both sides of the U-shaped notches.

[0059] An arc-shaped hinge plate 411 is hinged between a pair of single-ear seats 408. An arc-shaped wear-resistant plate 412 is fixed on the inner arc surface of the arc-shaped hinge plate 411. The inner arc surface of the arc-shaped wear-resistant plate 412 abuts against the outer wall of the pipe 101. An inclined plate 409 is fixed in the middle of the U-shaped notch. A tension spring 410 is fixed between the outer end of the inclined plate 409 and the middle of the outer arc surface of the arc-shaped hinge plate 411. During cutting, the tension spring 410 pulls the arc-shaped hinge plate 411, causing the arc-shaped wear-resistant plate 412 to abut against the pipe 101, limiting the shaking of the pipe 101, and ensuring the stability and accuracy of the cutting.

[0060] The working principle of this embodiment is as follows: When the pipe 101 is actually cut, after the automatic positioning and clamping of the pipe 101 in Embodiment 2 is completed, the third motor 402 installed in the rectangular hole at the bottom of the first side plate 200 is started. The motor shaft of the third motor 402 drives the crank 403 to start rotating in a circle. As the crank 403 rotates, the limiting pin 404 fixed at its outer end also moves. Since the outer end of the limiting pin 404 is slidably inserted into the rectangular pin hole 406 at the bottom of the T-shaped plate 405, the two form a limiting fit relationship. As the crank 403 continues to rotate, the limiting pin 404 slides in the rectangular pin hole 406, thereby driving the T-shaped plate 405 to slide smoothly upward along a pair of U-shaped vertical plates 401.

[0061] At the same time, the fourth motor 414 installed in the second square hole at the top of the T-shaped plate 405 is started. The motor shaft of the fourth motor 414 drives the metal cutting wheel 413 to rotate at high speed. As the T-shaped plate 405 rises, the high-speed rotating metal cutting wheel 413 gradually approaches and contacts the pipe 101, and begins to cut the pipe 101.

[0062] During the cutting process, in order to ensure the cutting stability of the pipe 101, the protective cover 407 and its internal structure fixed on the left side of the T-shaped plate 405 play an important role; the flush notch 1 and flush notch 2 at the top and bottom of the protective cover 407 provide space for the cutting operation of the metal cutting wheel 413, and a pair of single ear seats 408 at the U-shaped notches on both sides are hinged to the arc-shaped hinge plate 411.

[0063] Under the elastic tension of the tension spring 410, a pulling force is generated between the inclined plate 409 connected to one end of the tension spring 410 and the arc-shaped hinge plate 411 connected to the other end, causing the arc-shaped hinge plate 411 to swing hingedly towards the pipe 101; the arc-shaped wear-resistant plate 412 fixed on the inner arc surface of the arc-shaped hinge plate 411 then tightly abuts against the outer wall of the pipe 101, providing support for the pipe 101 from the side, effectively limiting the shaking and displacement of the pipe 101 during the cutting process, thereby ensuring that the metal cutting wheel 413 can cut the pipe 101 stably and accurately, greatly improving the cutting quality and work efficiency.

[0064] 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 ship pipe cutting device, comprising a base plate (100), characterized in that: A first side plate (200) is fixedly provided on the left side of the top surface of the base plate (100), and a first circular through hole is provided on the first side plate (200). A second side plate (300) is fixedly provided on the right side of the top surface of the base plate (100), and a second circular through hole is provided on the second side plate (300). A transversely distributed pipe (101) is provided between the first circular through hole and the second circular through hole. Three first I-shaped slide rails (201) are fixedly provided on the right side surface of the first side plate (200) in a circular arrangement around the first circular through hole, and a first U-shaped slide plate (202) is slidably fitted on each of the first I-shaped slide rails (201); three second I-shaped slide rails (301) are fixedly provided on the left side surface of the second side plate (300) in a circular arrangement around the second circular through hole, and a second U-shaped slide plate (302) is slidably fitted on each of the second I-shaped slide rails (301). A horizontally distributed fixed plate (102) is fixed between the corresponding first U-shaped slide plate (202) and second U-shaped slide plate (302). A vertically distributed fixed ear seat (103) is fixed in the middle of each fixed plate (102). A first motor (104) with its output end passing through the fixed ear seat (103) is fixedly installed on the left side of each fixed ear seat (103). A rubber roller (105) is concentrically fixed at the end of the motor shaft of each first motor (104). Each rubber roller (105) abuts against the outer surface of the pipe (101). A fixing plate (400) is fixedly provided on the bottom left side of the first side plate (200). A pair of symmetrically distributed U-shaped vertical plates (401) are fixedly provided at the two corners on the left side of the top surface of the fixing plate (400). A T-shaped plate (405) is provided between the pair of U-shaped vertical plates (401). A second square hole is provided on the top of the T-shaped plate (405). A fourth motor (414) with the output end facing outward is fixedly installed inside the second square hole. A metal cutting wheel (413) is concentrically fixedly fitted in the middle of the motor shaft of the fourth motor (414). The metal cutting wheel (413) cuts upward on the left side of the bottom surface of the pipe (101). Three driven shafts (204) arranged in a circular pattern around the first circular through hole are rotatably inserted on the right side surface of the first side plate (200). A driven swing arm (206) is fixedly installed in the middle of each driven shaft (204). A limiting roller shaft (207) is rotatably inserted at the outer end of each driven swing arm (206). A limiting roller (208) is sleeved on the outer end of each limiting roller shaft (207). Each driven shaft (204) has a concentrically fixed driven gear (205) fitted on its outer end. Each of the first U-shaped slide plates (202) has an L-shaped rack (203) fixed on one side. Each driven gear (205) is located between the corresponding first U-shaped slide plate (202) and the L-shaped rack (203), and the driven gear (205) is meshed with the corresponding L-shaped rack (203).

2. The ship pipe cutting device according to claim 1, characterized in that: The second circular through hole is provided with a double-strand retaining ring (303) for rotation. A hollow rotating cylinder (304) is fixedly inserted inside the double-strand retaining ring (303). A hollow rotating disk (305) is fitted in the middle of the hollow rotating cylinder (304) and fixedly connected in a concentric manner. Three arc-shaped pin holes (306) are opened on the hollow rotating disk (305) in a circular arrangement.

3. A ship pipe cutting device according to claim 2, characterized in that: The second side plate (300) has three trapezoidal through holes (307) arranged in a circular pattern around the second circular through hole. Each of the first U-shaped slide plates (202) is fixed with a first ear seat (106), and each of the second U-shaped slide plates (302) is fixed with a second ear seat (107). A fixed long rod (108) is fixed between the outer ends of the corresponding first ear seat (106) and second ear seat (107). The right end of each fixed long rod (108) passes through the corresponding trapezoidal through hole (307) and is slidably inserted into the corresponding arc-shaped pin hole (306).

4. A ship pipe cutting device according to claim 3, characterized in that: The right end of the hollow drum (304) is fitted with a large-diameter pulley that is concentrically fixed. The bottom of the second side plate (300) is provided with a first square hole. A second motor (308) with its output end facing outward is fixedly installed inside the first square hole. The end of the motor shaft of the second motor (308) is fitted with a small-diameter pulley that is concentrically fixed. The small-diameter pulley is connected to the large-diameter pulley through a drive belt (309).

5. A ship pipe cutting device according to claim 4, characterized in that: The bottom of the T-shaped plate (405) is provided with a rectangular pin hole (406), and the bottom of the first side plate (200) is provided with a third rectangular hole. A third motor (402) with the output end facing outward is fixedly installed inside the third rectangular hole. A crank (403) is fixedly installed at the end of the motor shaft of the third motor (402), and a limiting pin (404) is fixedly installed at the outer end of the crank (403). The outer end of the limiting pin (404) is slidably inserted into the rectangular pin hole (406).

6. A ship pipe cutting device according to claim 5, characterized in that: A protective cover (407) is fixedly provided on the left side of the T-shaped plate (405). The motor shaft of the fourth motor (414) rotates through the protective cover (407), and the metal cutting wheel (413) is located inside the protective cover (407). The top and bottom of the protective cover (407) are respectively provided with a flush notch one and a flush notch two. A pair of U-shaped notches are provided on both sides of the flush notch one, and a pair of single ear seats (408) are fixed on both sides of the U-shaped notches.

7. A ship pipe cutting device according to claim 6, characterized in that: An arc-shaped hinge plate (411) is hinged between a pair of single ear seats (408). An arc-shaped wear-resistant plate (412) is fixed on the inner arc surface of the arc-shaped hinge plate (411). The inner arc surface of the arc-shaped wear-resistant plate (412) abuts against the outer wall of the pipe (101). An inclined plate (409) is fixed in the middle of the U-shaped notch. A tension spring (410) is fixed between the outer end of the inclined plate (409) and the middle of the outer arc surface of the arc-shaped hinge plate (411).

8. A ship pipe cutting device according to claim 7, characterized in that: The outer surface of the rubber roller (105) is provided with several transverse grooves and longitudinal grooves, and the transverse grooves and longitudinal grooves intersect perpendicularly to form a structure. The outer surface of the limiting roller (208) is provided with several circularly distributed anti-slip grooves. The limiting roller (208) abuts against the outer surface of the pipe (101).

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