A fully automatic plasma cutting device for elbows and three-way joints

Abstract

The present invention relates to the technical field of elbow and tee port cutting. The present invention provides a fully automatic plasma cutting notching device for elbows and tee ports, which is used to cut uneven sections of lower elbows or tee ports to make them flush. The device comprises a base, a moving assembly, a rotating assembly and a plasma cutting head. The moving assembly is horizontally slidably arranged on the base; the rotating assembly is rotatably arranged on the moving assembly, and the rotating assembly can follow the moving assembly to move to the cutting position of the elbow or tee port; the plasma cutting head is arranged on the rotating assembly. When the rotating assembly is in the cutting position, the plasma cutting head is close to the inner wall of the elbow or tee port, and the plasma cutting head follows the rotating assembly to rotate to cut the uneven section of the lower elbow or tee port. Through the above technical solution, the technical problems of the cutting notching equipment in the related art, such as the complex structure, high difficulty in operation and single functionality, are solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of elbow tee port cutting, and in particular, to a fully automatic plasma cutting device for elbow tee ports. Background Art

[0002] The processing of large-diameter elbows and tees requires a series of steps, including stamping, welding, roundness correction, and port shaping and cutting. During the port shaping and cutting process, the corrected pipe ends often require trimming to correct uneven sections due to wavy shapes, burrs, or dimensional deviations. In existing technologies, manual cutting relies on operational experience, resulting in difficult to control flatness, low efficiency, and high labor costs. While existing cutting equipment can improve efficiency, it is complex in structure, has high operating and maintenance costs, and waste from cuttings can easily fall and impact equipment components, causing damage.

[0003] Furthermore, slag generated during the cutting process adheres to the ports, requiring additional manual cleaning, further impacting processing quality and efficiency. Furthermore, existing equipment struggles to adapt to pipes of varying diameters and lacks versatility. This leads to multiple technical bottlenecks in the port handling process for large-diameter pipes, including low automation, poor stability, and high maintenance costs. A cutting device with features that prevent scrap impact, facilitate slag cleaning, and provide adaptive adjustment is urgently needed. Summary of the Invention

[0004] To overcome the above-mentioned defects, an embodiment of the present invention provides a fully automatic plasma cutting and notching device for elbows, which solves the technical problems of the cutting and notching equipment in the related art, such as complex structure, difficult operation and single functionality.

[0005] According to one aspect, at least one embodiment of the present invention provides a fully automatic plasma cutting device for elbows and tees, which is used to cut uneven sections of lower elbows or tee ports to make them flush, comprising:

[0006] base;

[0007] A moving component is horizontally slidably arranged on the base;

[0008] A rotating assembly is rotatably mounted on the moving assembly, and the rotating assembly can follow the moving assembly to move to a cutting position of the elbow or tee port;

[0009] The plasma cutting head is arranged on the rotating assembly. When the rotating assembly is in the cutting position, the plasma cutting head is close to the inner wall of the elbow or the tee port. The plasma cutting head rotates with the rotating assembly to cut the uneven section of the lower elbow or the tee port.

[0010] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows, further comprising:

[0011] A supporting member is provided on the rotating assembly or the moving assembly, and is used for supporting the uneven section of the elbow or the three-way port cut by the plasma cutting head.

[0012] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting notching device for elbows, wherein the supporting member includes:

[0013] a sliding frame, slidably disposed on the rotating assembly or the moving assembly, the sliding frame having at least two parallel external support rods, the external support rods being used to support below the uneven section of the elbow or tee port;

[0014] The sliding frame is configured to drive the outer supporting rod to move closer to or away from the rotating shaft of the rotating assembly after sliding so as to adapt to elbows or tees of different diameters.

[0015] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows,

[0016] The sliding frame also has an inner supporting rod corresponding to the outer supporting rod one by one, and an accommodating space for the pipe wall of the elbow or the tee port to extend into is formed between the outer supporting rod and the inner supporting rod;

[0017] When the rotating assembly is located at the cutting position, the inner supporting rod and the outer supporting rod are configured to be located on the inner and outer sides of the elbow or tee port pipe wall respectively to support the uneven section of the elbow or tee port being cut.

[0018] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows,

[0019] The supporting member is arranged on the rotating assembly, and a slag scraping member is sleeved on the outer supporting rod. The outer supporting rod can rotate with the rotating assembly to scrape off the slag at the cut part of the elbow or the tee port.

[0020] For example, in at least one embodiment of the present disclosure, a fully automatic plasma cutting notching device for elbows and three-way joints is provided, wherein the slag scraper comprises:

[0021] The cylinder is rotatably sleeved on the outer periphery of the outer supporting rod, and a spiral protrusion is provided on the outer peripheral wall of the cylinder. The spiral protrusion rotates with the cylinder to scrape off the slag at the cut part of the outer wall of the elbow or the three-way port.

[0022] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows,

[0023] The spiral protrusions on two adjacent cylinders have opposite rotation directions.

[0024] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows,

[0025] The cylinder can also slide along the axial direction of the outer supporting rod;

[0026] The slag scraper also includes:

[0027] A spring is sleeved outside the outer supporting rod. There are two springs. The cylinder is located between the two springs. The two springs act on the two end surfaces of the cylinder respectively to provide a reset force for the cylinder.

[0028] For example, at least one embodiment of the present disclosure provides a fully automatic plasma cutting device for elbows,

[0029] The outer supporting rod is provided with a blowing port, and the blowing port is used to spray fluid to clean the slag at the cut part of the elbow or the tee port.

[0030] For example, at least one embodiment of the present disclosure provides a three-in-one fully automatic plasma cutting device for elbows, wherein the moving assembly includes:

[0031] A vertical rod is rotatably and horizontally slidably arranged on the base;

[0032] A slider, vertically slidingly arranged on the vertical rod;

[0033] A crossbar slides horizontally on the slider, and the rotating assembly is rotatably arranged at one end of the crossbar. The crossbar can drive the rotating assembly and the plasma cutting head to rotate synchronously under the rotation of the vertical rod.

[0034] The beneficial effects of the embodiments of the present invention are:

[0035] In the present invention, a slide rail is provided on the base to provide a stable sliding guide for the movable assembly, thereby ensuring the stability of the movable assembly in the horizontal direction. The vertical rod in the movable assembly is rotatable and can slide horizontally on the base, the slider slides vertically on the vertical rod, and the crossbar slides horizontally on the slider. This three-dimensional movable structure enables the rotating assembly to flexibly adjust its position in three-dimensional space, thereby moving the rotating assembly to the cutting position of the elbow or tee port, solving the problem that the equipment in the prior art is difficult to adapt to the cutting requirements of different positions and improving the flexibility of the device. The rotation setting of the rotating assembly enables the plasma cutting head to follow the rotating assembly to perform circular motion, realize circular cutting of uneven sections of the port, ensure the flatness of the cutting, and avoid the problem of difficult to control flatness caused by differences in operating experience in manual cutting. The plasma cutting head cuts close to the inner wall of the port and can efficiently cut the uneven section, which greatly improves the cutting efficiency and reduces labor costs compared to manual cutting. At the same time, the slag caused by cutting is kept as much as possible on the outside of the port for easy cleaning. The structure of the entire device is relatively simple, and automated cutting is achieved through the cooperation of various components, which reduces complex operation and maintenance links, reduces operation and maintenance costs, and avoids maintenance difficulties caused by the complex structure of existing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0037] Figure 1 A schematic diagram of the three-dimensional structure of a fully automatic plasma cutting device for elbows in one embodiment of the present invention Figure 1 ;

[0038] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of a fully automatic plasma cutting device for elbow three-way cutting in the embodiment Figure 2 ;

[0039] Figure 3 for Figure 1 A schematic top view of a fully automatic plasma cutting notching device for elbows in an embodiment of the present invention;

[0040] Figure 4 for Figure 3 Middle A is a schematic diagram of a partially enlarged structure;

[0041] Figure 5 for Figure 1A schematic structural diagram of the usage status of a three-in-one elbow full-automatic plasma cutting device in an embodiment.

[0042] In the figure: 1-base, 2-moving component, 21-vertical rod, 22-slider, 23-cross bar, 3-rotating component, 31-turntable, 32-sliding rod, 4-plasma cutting head, 5-supporting member, 51-outer supporting rod, 52-inner supporting rod, 53-slag scraper, 54-cylinder, 55-spiral protrusion, 56-spring, 57-blowing port, 58-sliding frame, 6-elbow. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0044] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0045] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0048] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0049] like Figures 1 to 5 The figure shows a fully automatic plasma cutting device for elbows and tees in one embodiment of the present invention, which is used to cut uneven sections of lower elbows or tees to make them flush. The device includes a base 1, a moving component 2, a rotating component 3, and a plasma cutting head 4.

[0050] The base 1 provides a stable support foundation for the entire device, and a horizontal slide rail is arranged on the top of the base 1. The movable component 2 is horizontally slidably arranged on the slide rail of the base 1. The movable component 2 includes a vertical rod 21, a slider 22 and a cross rod 23. The bottom of the vertical rod 21 cooperates with the slide rail of the base 1 through the slider, and can slide horizontally on the base 1. At the same time, the vertical rod 21 itself can rotate around its vertical axis. The slider 22 is vertically slidably arranged on the vertical rod 21, and the cross rod 23 is horizontally slidably arranged on the slider 22. The sliding direction of the cross rod 23 is perpendicular to the horizontal sliding direction of the vertical rod 21. The rotating component 3 is rotatably arranged at one end of the cross rod 23, specifically, the rotating table 31 of the rotating component 3 is connected to one end of the cross rod 23, and the rotating table 31 can rotate around the horizontal axis. The plasma cutting head 4 is arranged on the rotating component 3. When the rotating component 3 is in the cutting position, the plasma cutting head 4 is close to the inner wall of the elbow or the tee port.

[0051] The workflow is as follows: First, place the elbow 6 or tee in the appropriate position, and adjust the position of the vertical rod 21 by sliding the vertical rod 21 of the mobile component 2 horizontally on the slide rail of the base 1 so that the rotating component 3 is roughly aligned with the cutting area of ​​the elbow or tee port. Then, adjust the position of the rotating component 3 by sliding the slider 22 vertically on the vertical rod 21 and the horizontal rod 23 horizontally on the slider 22 so that the rotation center of the rotating component 3 coincides with the central axis of the elbow or tee port, and the plasma cutting head 4 is close to the inner wall of the port. Next, the rotating table 31 of the rotating component 3 begins to rotate, driving the plasma cutting head 4 to make a circular motion around the inner wall of the port. During the rotation process, the plasma cutting head 4 emits a plasma beam to cut the uneven section of the port, thereby cutting off the uneven section and making the port flush.

[0052] In this embodiment, refer to Figure 1 and Figure 2As shown, a slide rail is provided on the base 1, which provides a stable sliding guide for the mobile assembly 2, ensuring the stability of the mobile assembly 2 in the horizontal movement. The vertical rod 21 in the mobile assembly 2 is rotatable and can slide horizontally on the base 1, the slider 22 slides vertically on the vertical rod 21, and the crossbar 23 slides horizontally on the slider 22. This three-dimensional mobile structure enables the rotating assembly 3 to flexibly adjust its position in three dimensions, thereby moving the rotating assembly 3 to the cutting position of the elbow or tee port, solving the problem that the equipment in the prior art is difficult to adapt to the cutting requirements of different positions and improving the flexibility of the device. The rotation setting of the rotating assembly 3 enables the plasma cutting head 4 to follow the rotating assembly 3 in a circular motion, achieving circular cutting of uneven sections of the port, ensuring the flatness of the cutting, and avoiding the problem of difficult to control the flatness caused by differences in operating experience in manual cutting. The plasma cutting head 4 cuts close to the inner wall of the port, which can efficiently cut the uneven section, greatly improving the cutting efficiency and reducing labor costs compared to manual cutting. At the same time, the slag caused by the cutting is kept as much as possible outside the port for easy cleaning. The structure of the entire device is relatively simple, and automated cutting is achieved through the cooperation of various components, which reduces complex operation and maintenance links, reduces operation and maintenance costs, and avoids maintenance difficulties caused by the complex structure of existing equipment.

[0053] Further, refer to Figure 1 As shown, the support member 5 can be installed on either the rotating assembly 3 or the movable assembly 2. If installed on the rotating assembly 3, the support member 5 rotates with the rotating assembly 3; if installed on the movable assembly 2, it moves with the movable assembly 2, maintaining a stable relative position during the rotation of the rotating assembly 3. The support member 5 is designed to accommodate uneven sections cut by the plasma cutting head 4. For example, it can be in the form of a flat plate or bracket. It is positioned below or near the cutting head to ensure that the cut waste lands accurately on the support member 5.

[0054] In this embodiment, the provision of the support member 5 effectively solves the problem in the prior art of waste cutting material easily falling and striking equipment components, causing damage. By supporting the uneven cut sections, the free-falling waste material is prevented from striking equipment components, protecting the equipment and extending its service life. It also reduces equipment failures and maintenance costs caused by falling waste material, and facilitates the operator's removal of the uneven cut sections.

[0055] Further, refer to Figure 1 and Figure 2As shown, the sliding frame 58 of the supporting member 5 is arranged on the rotating component 3 or the moving component 2 through a sliding mechanism such as a slide rail or a slider, and can slide in the radial direction. At least two external supporting rods 51 are arranged in parallel on the sliding frame 58, and the external supporting rods 51 can be in the form of cylindrical rods. The sliding frame 58 is connected to a driving mechanism such as a screw-nut mechanism, a cylinder, etc. When the driving mechanism is activated, it drives the sliding frame 58 to slide, thereby causing the external supporting rods 51 to move closer to or away from the rotation axis of the rotating component 3. When it is necessary to adapt to elbows or tees of different diameters, the distance between the external supporting rods 51 and the rotation axis is changed by adjusting the position of the sliding frame 58 to adapt to the port size of pipes of different diameters.

[0056] In this embodiment, this design allows the support member 5 to be adjusted according to the diameter of the pipe, thereby improving the versatility of the device. This eliminates the need to replace different support structures for pipes of different diameters, reduces equipment adjustment time and costs, and can meet the processing requirements of various specifications of elbows and tees, effectively solving the problem of insufficient versatility of existing equipment.

[0057] Further, refer to Figure 1 and Figure 4 As shown, the sliding frame 58 is equipped with inner support rods 52, corresponding one-to-one with the outer support rods 51. The inner support rods 52 and the outer support rods 51 are parallel and separated by a certain distance (i.e., a space for the pipe wall of the elbow or tee port to extend into). An opening is formed between the free ends of the inner support rods 52 and the outer support rods 51, communicating with the gap. When the rotating assembly 3 is in the cutting position, the inner support rods 52 pass through the port and are located inside the elbow or tee port, while the outer support rods 51 are located outside the port. The inner and outer support rods work together to support the uneven section being cut. The opening design facilitates positioning the port within the gap (i.e., between the inner and outer support rods 52 and 51) during movement.

[0058] In this embodiment, the arrangement of inner and outer support rods provides stable support for the cut material. Compared to single outer support, the simultaneous inner and outer support better balances the forces acting on the material, preventing it from shifting or falling during the cutting process, further enhancing support reliability. Furthermore, this structural design can accommodate uneven sections of varying thicknesses and shapes, enhancing the device's stability and waste material control during the cutting process.

[0059] Further, refer to Figure 4 As shown, the support member 5 is mounted on the rotating assembly 3 and rotates with the rotating assembly 3. A slag scraper 53 is provided on the outer support rod 51. When the rotating assembly 3 drives the outer support rod 51 to rotate, the slag scraper 53 rotates accordingly. It contacts the cut portion of the elbow or tee port and scrapes away slag adhering to the outside of the port through friction and other effects. For example, the slag scraper 53 can be a scraper blade made of an elastic material that can closely conform to the port surface and effectively scrape away slag.

[0060] In this embodiment, the provision of slag scraper 53 enables automatic removal of slag during the cutting process, eliminating the need for additional manual cleaning, reducing subsequent cleaning steps, and improving processing efficiency. Furthermore, timely slag removal prevents slag from adhering to the port and affecting processing quality, ensuring cutting accuracy and surface quality of the port, and resolving the difficulty of slag removal in the prior art.

[0061] Further, refer to Figure 4 As shown, the barrel 54 of the slag scraper 53 is sleeved on the outer support rod 51. The barrel 54 is freely rotatable along the central axis of the outer support rod 51 through rotating components such as bearings. The barrel 54 is parallel to the axial direction of the port. A spiral protrusion 55 is machined on the outer peripheral wall of the barrel 54. The pitch and height of the spiral protrusion 55 are designed according to the characteristics of the slag generated by the actual cutting. When the rotating component 3 rotates, the barrel 54 on the outer support rod 51 rotates due to friction with the outer wall of the port. The rotation of the barrel 54 causes the spiral protrusion 55 to rotate. After the spiral protrusion 55 rotates, it can scrape the slag at the cut area outside the port along the axial direction of the barrel 54.

[0062] In this embodiment, the design of the spiral protrusion 55 utilizes the characteristics of spiral motion to scrape off slag along the axial direction of the cylinder 54. Compared with ordinary scrapers, the spiral structure can clean the slag along the axial direction of the port during rotation, avoiding the problem of difficulty in cleaning caused by excessive resistance during circumferential cleaning.

[0063] Further, refer to Figure 4 As shown, the spiral projections 55 of the barrels 54 on adjacent outer support rods 51 have opposite rotational directions. For example, if the spiral projection 55 on the left outer support rod 51 is right-handed, the spiral projection 55 on the adjacent outer support rod 51 on the right is left-handed. Furthermore, the spiral projections 55 on each barrel 54 are arranged symmetrically. This design of opposite rotational directions allows adjacent spiral projections 55 to scrape slag in opposite directions when the rotating assembly 3 rotates, creating a bidirectional scraping effect.

[0064] In this embodiment, the opposite rotation directions of adjacent spiral protrusions 55 can more thoroughly clean the slag around the port. The opposite rotation directions apply opposite forces to the slag. Therefore, when the slag cannot be removed in one direction, the force in the other direction may be able to remove the slag, thereby increasing the possibility of removing the slag and reducing the possibility of firm slag residue, thereby avoiding the problem of slag in some areas not being able to be effectively scraped off due to a single rotation direction.

[0065] Further, refer to Figure 4As shown, the barrel 54 is capable of sliding axially along the outer support rod 51. Springs 56 are sleeved on either side of the barrel 54 on the outer support rod 51. One end of the spring 56 acts on the barrel 54, and the other end is connected to the outer circumferential wall of the outer support rod 51 (or to a limiting structure on the outer support rod 51, such as a limiting ring). When the spiral protrusion 55 on the barrel 54 encounters slag that is difficult to remove, the rotation of the spiral protrusion 55 causes the barrel 54 to slide axially. After the barrel 54 slides axially a certain distance, the force of the spring 56 increases. Combined with the fixed pitch of the spiral protrusion 55, the spiral protrusion 55 produces intermittent axial movement (due to the resistance of the spiral protrusion 55 to the slag), creating a knocking effect, making it easier to remove stubborn slag (spiral protrusions 55 with opposite rotation directions produce knocking effects in opposite directions, making it easier to remove stubborn slag).

[0066] Further, refer to Figure 4 As shown, a blow port 57 is formed on the outer support rod 51 and is connected to a fluid supply system (such as an air pump or water pump). The fluid supply system communicates with a flow channel within the outer support rod 51 via a pipeline, and the end of the flow channel is connected to the blow port 57. The blow port 57 is located near the spiral protrusion 55 or in an area where slag is likely to adhere. When slag needs to be removed, the fluid supply system is activated, and high-pressure gas or liquid is ejected through the blow port 57 to purge or flush the slag at the cut end.

[0067] In this embodiment, the configuration of the nozzle 57 combines fluid injection and mechanical scraping to remove slag, achieving a multi-step slag removal effect. For stubborn slag that is difficult to remove with mechanical scraping, fluid injection can effectively dislodge or soften it, improving the thoroughness of slag removal. Furthermore, the injection process cools and cleans the port surface, further improving processing quality and efficiency and reducing the workload of subsequent manual processing.

[0068] Furthermore, the vertical rod 21 of the movable assembly 2 is arranged on the base 1 through a horizontal slide rail and a bearing, and can slide horizontally on the base 1, and can rotate around the vertical axis to adjust the orientation. The slider 22 is arranged on the vertical rod 21 through a vertical slide rail, and can slide up and down along the vertical rod 21. The cross bar 23 is arranged on the slider 22 through a horizontal slide rail and can slide in the horizontal direction. The rotating assembly 3 is installed at one end of the cross bar 23 through rotating parts such as bearings, and can rotate around the end rotation axis of the cross bar 23. Through the horizontal sliding and rotation of the vertical rod 21, the up and down sliding of the slider 22 and the horizontal sliding of the cross bar 23, the position of the rotating assembly 3 in three-dimensional space is adjusted and positioned to the cut position of the elbow or tee port.

[0069] The rotating platform 31 of the rotating assembly 3 is pivotally mounted on one end of the crossbar 23 via a bearing. A sliding rod 32 is mounted on the rotating platform 31 via a guide rail and can slide along the length of the rotating platform 31. The plasma cutting head 4 is mounted on the sliding rod 32. By adjusting the position of the sliding rod 32 on the rotating platform 31, the distance between the plasma cutting head 4 and the rotation axis of the rotating assembly 3 can be adjusted to accommodate ports of varying diameters. The support member 5 can be mounted on either the sliding rod 32 or the crossbar 23. If mounted on the sliding rod 32, it slides with the sliding rod 32, maintaining its relative position to the cutting head. If mounted on the crossbar 23, its position is relatively fixed, and the sliding movement of the sliding rod 32 adjusts the fit between the cutting head and the support member 5.

[0070] The provision of sliding rods 32 enables radial adjustment of the plasma cutting head 4. Combined with the multi-dimensional movement of the movable assembly 2, this further enhances the device's adaptability to ports of varying diameters and shapes. Precise adjustment of the cutting head's position ensures the proper distance and angle between the cutting head and the port's inner wall during the cutting process, improving cutting quality and efficiency. Furthermore, the optimal coordination of the support member 5 with the cutting head ensures effective support of cutting waste and timely removal of slag, enhancing the device's overall performance.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully automatic plasma cutting device for elbows and tees, used for cutting uneven sections of lower elbows or tees to make them flush, characterized by: include: Base (1); A moving component (2) is horizontally slidably arranged on the base (1); A rotating assembly (3) is rotatably mounted on the moving assembly (2), and the rotating assembly (3) is capable of following the moving assembly (2) to move to a cutting position of the elbow or tee port; A plasma cutting head (4) is arranged on the rotating assembly (3); when the rotating assembly (3) is in the cutting position, the plasma cutting head (4) is close to the inner wall of the elbow or the tee port, and the plasma cutting head (4) rotates with the rotating assembly (3) to cut the uneven section of the elbow or the tee port; A supporting member (5) is provided on the rotating assembly (3), and the supporting member (5) is used to support the uneven section of the elbow or the tee port cut by the plasma cutting head (4). The supporting member (5) comprises: A sliding frame (58) is slidably arranged on the rotating assembly (3), and the sliding frame (58) has at least two parallel outer support rods (51). The outer support rods (51) are sleeved with slag scrapers (53). The outer support rods (51) can rotate with the rotating assembly (3) to scrape off slag at the cut portion of the elbow or the tee port. The slag scraper (53) includes: The cylinder (54) is rotatably sleeved on the outer periphery of the outer supporting rod (51), and a spiral protrusion (55) is provided on the outer peripheral wall of the cylinder (54). The spiral protrusion (55) rotates with the cylinder (54) to scrape off the slag at the cut portion of the outer wall of the elbow or the three-way port. The spiral protrusions (55) on two adjacent cylinders (54) rotate in opposite directions.

2. The fully automatic plasma cutting notching device for elbows according to claim 1 is characterized in that: The outer support rod (51) is used to support the lower side of the uneven section of the elbow or the tee port; The sliding frame (58) is configured to slide and drive the outer support rod (51) to move closer to or farther from the rotation axis of the rotating assembly (3) to adapt to elbows or tees of different diameters.

3. The fully automatic plasma cutting notching device for elbows according to claim 2 is characterized in that: The sliding frame (58) also has an inner supporting rod (52) corresponding to the outer supporting rod (51) one by one, and an accommodating space for the pipe wall of the elbow or the tee port to extend into is formed between the outer supporting rod (51) and the inner supporting rod (52); When the rotating assembly (3) is located at the cutting position, the inner supporting rod (52) and the outer supporting rod (51) are configured to be located at the inner and outer sides of the elbow or tee port pipe wall, respectively, to support the uneven section of the elbow or tee port that is cut.

4. The fully automatic plasma cutting notching device for elbows according to claim 1 is characterized in that: The cylinder (54) is also capable of sliding along the axial direction of the outer supporting rod (51); The slag scraper (53) further comprises: A spring (56) is sleeved outside the outer supporting rod (51), and there are two springs (56). The cylinder (54) is located between the two springs (56). The two springs (56) act on the two end surfaces of the cylinder (54) to provide a reset force for the cylinder (54).

5. A fully automatic plasma cutting notching device for elbows according to claim 1 or 4, characterized in that: The outer support rod (51) is provided with a blowing port (57), and the blowing port (57) is used to spray fluid to clean slag at the cut portion of the elbow or the tee port.

6. A fully automatic plasma cutting notching device for elbows according to any one of claims 1 to 4, characterized in that: The mobile component (2) comprises: A vertical rod (21) is rotatably and horizontally slidably arranged on the base (1); A slider (22) is vertically slidably arranged on the vertical rod (21); A crossbar (23) slides horizontally on the slider (22), and the rotating assembly (3) is rotatably arranged at one end of the crossbar (23). The crossbar (23) can drive the rotating assembly (3) and the plasma cutting head (4) to rotate synchronously under the rotation of the vertical rod (21).

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