Numerical control machining laser cutting equipment

Abstract

The invention discloses laser cutting equipment for numerical control machining. The laser cutting equipment comprises a workpiece clamping mechanism, a laser cutting device and a welding slag bearing structure. The workpiece clamping mechanism is used for clamping a workpiece to be subjected to laser cutting; the laser cutting device is provided with a laser cutting station and a laser cutting head, the laser cutting head faces the laser cutting station, and the laser cutting head is used for cutting a workpiece to be subjected to laser cutting; the welding slag bearing structure is located under the laser cutting station. The device solves the problem of equipment pollution caused by the fact that slag is prone to being hung on the pipe wall or directly falls off when the pipe is cut through laser.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, and in particular to a CNC machining laser cutting equipment. Background Technology

[0002] CNC laser cutting equipment is a type of CNC machine tool that uses a high-energy laser beam to automatically and precisely cut workpieces such as metal pipes. This equipment typically includes a CNC system, a laser generating system, a cutting head, and a feeding mechanism for carrying and transporting the workpiece, aiming to achieve efficient and high-precision automated cutting operations.

[0003] In the actual cutting process of existing equipment of this type, the slag produced at the pipe cut often appears in columnar or segmental form, easily hanging and adhering to the inner wall edge or falling directly downwards. This residue and falling slag can not only affect the morphological quality of the cut, but the falling slag can also contaminate the inside of the equipment, interfere with subsequent processing, and even damage precision components. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a CNC machining laser cutting equipment to solve the problem of equipment pollution caused by molten slag easily hanging on the pipe wall or falling directly during laser cutting of pipes.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A CNC laser cutting machine includes: a workpiece clamping mechanism, a laser cutting device, and a slag support structure. The workpiece clamping mechanism is used to clamp the workpiece to be laser cut. The laser cutting device has a laser cutting station and a laser cutting head, the laser cutting head facing the laser cutting station, and the laser cutting head is used to cut the workpiece to be laser cut. The slag support structure is located directly below the laser cutting station. This machine achieves laser cutting of the workpiece while solving the problem of collecting and cleaning the cutting slag.

[0007] Furthermore, the slag support structure includes a first support plate, a plurality of first slag support protrusions, and a plurality of first elastic elements; the first support plate has a plurality of first receiving holes, which are spaced apart and recessed from the top wall of the first support plate along the direction of gravity; each of the first slag support protrusions is respectively received in one of the first receiving holes; both ends of each of the first elastic elements are respectively connected to the first support plate and one of the first slag support protrusions, so that the first slag support protrusions have a tendency to extend along the first receiving holes.

[0008] Furthermore, the slag support structure also includes a first scraper, which is slidably connected to the first support plate and is used to press the plurality of the first slag support protrusions into the corresponding first receiving holes.

[0009] Furthermore, the first scraper is spaced a certain distance from the top wall of the first support plate.

[0010] Furthermore, the slag support structure further includes a second support plate, a plurality of second slag support protrusions, and a plurality of second elastic elements; the second support plate is located directly below the first support plate and slides in cooperation with the first support plate, so as to be able to slide out from directly below the first support plate to expand the total slag support area formed by the first support plate and the second support plate, and to be able to slide into directly below the first support plate to reduce the total slag support area formed by the first support plate and the second support plate; the second support plate has a plurality of second receiving holes, which are spaced apart, and the second receiving holes are recessed from the top wall of the second support plate along the direction of gravity; each second slag support protrusion is respectively received in one of the second receiving holes; the two ends of each second elastic element are respectively connected to the second support plate and one of the second slag support protrusions, so that the second slag support protrusions have a tendency to extend along the second receiving holes.

[0011] Furthermore, the sidewall of the first support plate is a second scraper, which is located on the movement trajectory of the plurality of second welding slag support protrusions following the movement of the second support plate. The second scraper is used to press the plurality of second welding slag support protrusions into the corresponding second receiving holes.

[0012] Furthermore, the second scraper is spaced a certain distance from the top wall of the second support plate.

[0013] Furthermore, the melting point of the first support plate and the melting point of the first weld slag support protrusion are both higher than the maximum heating temperature of the laser cutting head.

[0014] Furthermore, the CNC machining laser cutting equipment also includes a rotary drive mechanism, the slag support structure is mounted on the base of the rotary drive mechanism; the workpiece clamping mechanism is mounted on the drive part of the rotary drive mechanism so as to be able to rotate relative to the slag support structure.

[0015] Furthermore, the CNC machining laser cutting equipment includes at least one drive roller; the drive roller is equipped with a drive motor, and the output shaft of the drive motor is connected to the drive roller to drive the drive roller to rotate about its axis; the drive roller is configured to support and push the workpiece to be laser cut toward the laser cutting station by friction.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The workpiece clamping mechanism is used to clamp the workpiece to be laser-cut. This structure provides positioning and support for the workpiece during the cutting process, ensuring precise alignment of the laser cutting head relative to the workpiece and the processing reference. Since the laser cutting device has a laser cutting station and a laser cutting head, with the laser cutting head facing the laser cutting station to cut the workpiece, this structure clearly defines the energy application point and the processing area.

[0018] 2. Since the slag support structure is located directly below the laser cutting station, this structure not only directly catches the molten slag falling or dripping from the cut during the cutting process, but also supports the high-temperature, viscous bottom of the slag when it is suspended in columnar or segmental form at the cut. When the workpiece moves and there is relative displacement between it and the support structure, a shear force is generated between the bottom of the slag adhering to the support structure and the middle of the cooled and hardened slag column, thereby reliably breaking off and removing the suspended slag column from the cut.

[0019] 3. The slag support structure comprises a combination of a first support plate, multiple first slag support protrusions, and multiple first elastic elements. The melting points of both the first support plate and the first slag support protrusions are higher than the maximum heating temperature of the laser cutting head. This structure ensures that the support components will not melt or deform when in direct contact with high-temperature molten slag, thus maintaining the integrity and functionality of the structure. Each first slag support protrusion is respectively housed in a first receiving hole and supported by a first elastic element, naturally forming an annular recess between itself and the wall of the receiving hole. This recess allows the bottom of the high-temperature, viscous slag to embed and firmly adhere to the slag when it supports it. Therefore, when the workpiece and the slag support structure move relative to each other, the suspended slag column can be more effectively torn off and removed from the cut by shearing force. Meanwhile, based on the first elastic element, the protrusion has an elastic retraction tendency. This design can not only buffer and avoid being accidentally pressed down, but also facilitate the separation of the surface of the first weld slag supporting the protrusion from the adhered weld slag by manually pressing down on it during the cleaning cycle. This allows the solidified weld slag to be easily removed from the recess, avoiding the caking and accumulation of weld slag on the weld slag supporting structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a CNC machining laser cutting device according to the present invention;

[0021] Figure 2 for Figure 1 The cross-sectional view shown;

[0022] Figure 3 for Figure 2 A magnified view of point A shown below;

[0023] Figure 4 for Figure 2 A schematic diagram of the slag support structure shown.

[0024] Figure 5 for Figure 2 A schematic diagram of the slag support structure from another perspective.

[0025] In the diagram: 1. Workpiece clamping mechanism; 2. Workpiece; 3. Laser cutting device; 301. Laser cutting station; 302. Laser cutting head; 4. Slag support structure; 401. First support plate; 402. First slag support protrusion; 403. First elastic element; 404. First receiving hole; 405. First scraper; 406. Second support plate; 407. Second slag support protrusion; 408. Second elastic element; 410. Second scraper; 411. Slide rail; 412. Slider; 5. Rotary drive mechanism; 501. Base; 502. Drive unit; 6. Drive roller; 7. Drive motor. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] See Figures 1-5 A preferred embodiment of the present invention is described below:

[0030] A CNC laser cutting machine includes: a workpiece clamping mechanism 1, a laser cutting device 3, and a slag support structure 4. The workpiece clamping mechanism 1 is used to clamp the workpiece 2 to be laser cut. The laser cutting device 3 has a laser cutting station 301 and a laser cutting head 302, with the laser cutting head 302 facing the laser cutting station 301 and used to cut the workpiece 2. The slag support structure 4 is located directly below the laser cutting station 301. This machine achieves laser cutting of the workpiece 2 while solving the problem of collecting and cleaning the cutting slag.

[0031] The workpiece clamping mechanism 1 is used to fix the workpiece 2. It can be a mechanical chuck, pneumatic clamp, or hydraulic clamp, etc., to ensure that the workpiece 2 does not shift during processing. The core of the laser cutting device 3 is the laser cutting head 302, which is driven by a motion system (e.g., gantry type, cantilever type, or robotic arm) to align and scan the workpiece 2 located on the laser cutting station 301. The slag support structure 4 is fixedly installed on the frame below the cutting station. Its top surface is used to directly receive falling objects. This structure can also be an integral high-temperature resistant tray, a collection plate with grid or honeycomb holes, or, as in this embodiment, an adaptive receiving assembly composed of movable support protrusions and elastic elements.

[0032] During processing, the workpiece clamping mechanism 1 fixes and transports the workpiece 2, such as pipes or profiles, to the laser cutting station 301. The laser cutting head 302, according to instructions from the CNC program, emits a high-energy-density laser beam to melt and cut the workpiece 2 along a predetermined path. During this process, some of the molten welding slag drips directly, while the rest cools and shrinks, forming a slag column suspended at the cut. The bottom of all falling or suspended welding slag is caught by the welding slag support structure 4 directly below. When the workpiece 2 completes a cutting cycle and is removed, or when the support structure is moved for cleaning, the relative movement between the bottom of the high-temperature welding slag adhering to the support structure and the cooled and hardened welding slag column generates a shearing force that breaks the suspended welding slag column from the cut, thus achieving automatic removal.

[0033] The slag support structure 4 uses a first support plate 401 made of a high-temperature resistant alloy, with multiple first receiving holes 404 spaced apart on the plate. Each hole contains a first slag support protrusion 402 that can be lifted by a first elastic element 403. In its natural state, the upper surface of the first slag support protrusion 402 is slightly higher than the plane of the first support plate 401 to actively support the slag; when subjected to greater pressure, the first slag support protrusion 402 can compress the elastic element and retract into the hole to avoid pressure. The molten slag produced during cutting adheres to the surface of the protrusion and the recess formed between it and the hole wall. Subsequently, by moving the workpiece 2 or through manual intervention, the first support plate 401 and the slag column are relatively displaced, and the slag column is torn off and falls off the protrusion, completing the collection and initial cleaning.

[0034] It is understandable that the workpiece clamping mechanism 1, used to clamp the workpiece 2 to be laser-cut, provides positioning and support for the workpiece 2 during the cutting process, ensuring the precise alignment and processing reference of the laser cutting head 302 relative to the workpiece 2. The laser cutting device 3, with a laser cutting station 301 and a laser cutting head 302, and the laser cutting head 302 facing the laser cutting station 301 to cut the workpiece 2, clearly defines the energy application point and processing area. The slag support structure 4, located directly below the laser cutting station 301, not only directly receives molten slag falling or dripping from the cut during the cutting process, but also supports the high-temperature, viscous bottom of the slag when it is suspended in a columnar or segmental shape at the cut. When the workpiece 2 moves and there is relative displacement with the support structure, a shearing force is generated between the bottom of the slag adhering to the support structure and the middle of the cooled and hardened slag column, thereby reliably breaking and removing the suspended slag column from the cut.

[0035] Preferably, the slag support structure 4 includes a first support plate 401, a plurality of first slag support protrusions 402, and a plurality of first elastic elements 403. The first support plate 401 has a plurality of first receiving holes 404, which are spaced apart and recessed from the top wall of the first support plate 401 along the direction of gravity. Each first slag support protrusion 402 is respectively received in one of the first receiving holes 404. The two ends of each first elastic element 403 are respectively connected to the first support plate 401 and one of the first slag support protrusions 402, so that the first slag support protrusions 402 have a tendency to extend along the first receiving holes 404. This slag support structure 4, through its elastic floating and high-temperature resistant protrusion design, can not only receive and adhere high-temperature slag, but also break the suspended slag column through the shear force generated by the relative motion, facilitating subsequent slag cleaning.

[0036] The slag support structure 4 mainly consists of a first support plate 401, multiple first slag support protrusions 402, and multiple first elastic elements 403. Multiple first receiving holes 404, recessed along the direction of gravity, are spaced apart on the first support plate 401. Each first slag support protrusion 402 is placed within a first receiving hole 404, and both ends of each first elastic element 403 are connected to the first support plate 401 and the corresponding first slag support protrusion 402, thereby providing the protrusion with a consistently upward elastic holding force, giving it a tendency to extend out of the first receiving hole 404. Both the first support plate 401 and the first slag support protrusions 402 are made of materials with melting points higher than the maximum operating temperature of the laser cutting head 302 (such as heat-resistant alloys or ceramics) to ensure the stability of the structure at high temperatures. The annular gap between the first slag support protrusion 402 and the hole wall of the first receiving hole 404 naturally forms a recess for accommodating and embedding the bottom of the slag. As an alternative structure, the top of the first slag support protrusion 402 can also be designed as a recessed or rough surface to further enhance the adhesion effect with the molten slag; the first elastic element 403 can also be a helical spring, a disc spring or an elastic rubber column.

[0037] During laser cutting, the hot bottom of the dripping or suspended welding slag contacts the top surface of the first welding slag support protrusion 402 and flows into the annular recess between the first welding slag support protrusion 402 and the wall of the first receiving hole 404, where it cools and adheres firmly afterward. When cutting is complete and the workpiece 2 is removed or the support structure actively moves, the bottom of the welding slag adhering to the protrusion and the cooled and hardened welding slag column undergo relative displacement, and the resulting shear force tears the welding slag column off from the cut. During cleaning and maintenance, the first welding slag support protrusion 402 can be pressed down to overcome the elastic force of the first elastic element 403 and retract into the first receiving hole 404. This allows the protrusion surface to separate from the solidified welding slag, making it easy to remove chunks of welding slag from the recess for quick cleaning.

[0038] It is understood that the slag support structure 4 comprises a combination of a first support plate 401, multiple first slag support protrusions 402, and multiple first elastic elements 403. The melting points of the first support plate 401 and the first slag support protrusions 402 are both higher than the maximum heating temperature of the laser cutting head 302. This structure ensures that the support components will not melt or deform when in direct contact with high-temperature molten slag, thus maintaining the integrity and functionality of the structure. Each first slag support protrusion 402 is respectively housed in a first receiving hole 404 and supported by a first elastic element 403, naturally forming an annular recess between itself and the receiving hole wall. This recess allows the bottom of the high-temperature, viscous slag to embed and firmly adhere to it when supporting the slag. Therefore, when the workpiece 2 moves relative to the slag support structure 4, the suspended slag column can be more effectively torn off and removed from the cut by shearing force. Meanwhile, based on the first elastic element 403, the protrusion has an elastic retraction tendency. This design can not only buffer and avoid being accidentally pressed down, but also facilitate the separation of the surface of the first welding slag support protrusion 402 from the adhered welding slag by manually pressing down on it during the cleaning cycle. This allows the solidified welding slag to be easily removed from the recess, avoiding the caking and accumulation of welding slag on the welding slag support structure 4.

[0039] Preferably, the slag support structure 4 further includes a first scraper 405, which is slidably connected to the first support plate 401 and is used to press the plurality of first slag support protrusions 402 into the corresponding first receiving holes 404. This embodiment, by adding the first scraper 405, achieves simultaneous pressing and resetting of the plurality of first slag support protrusions 402, thereby improving the efficiency of slag removal.

[0040] The slag support structure 4, based on the first support plate 401, multiple first slag support protrusions 402, and multiple first elastic elements 403, adds a first scraper 405. The first scraper 405 is slidably connected to the first support plate 401 via a slide rail 411, a slider 412, or a guide rod, and its plate body covers the multiple first slag support protrusions 402. The first scraper 405 can be driven manually or by a linear drive mechanism (such as a cylinder, electric cylinder, or lead screw and nut pair) to move horizontally along the surface of the first support plate 401. The first scraper 405 can also be segmented, composed of multiple independently driven small scrapers, to clean specific areas; its sliding connection method can also be a rolling guide rail or a dovetail groove fit.

[0041] When slag removal is required, the first scraper 405 is driven to slide along the surface of the first support plate 401. When the first scraper 405 moves to the position covering the first slag-supporting protrusion 402, its lower surface contacts and presses downward on the top of the protrusion, forcing all the covered first slag-supporting protrusions 402 to simultaneously overcome the elastic force of the first elastic element 403 and retract into the corresponding first receiving hole 404. This action causes the protrusion surface to quickly separate from the solidified slag adhering to it. As the first scraper 405 continues to move, the separated slag blocks are pushed away from the area where the protrusion is located and are eventually collected or discharged, completing the automated cleaning. After cleaning, the first scraper 405 resets, and the first slag-supporting protrusions 402 automatically return to their initial extended state under the support of the first elastic element 403, ready for the next round of work.

[0042] Preferably, the first scraper 405 is spaced a certain distance from the top wall of the first support plate 401. This distance is set to ensure that the first scraper 405 only performs a downward cleaning action, avoiding contact or friction between its lower surface and the top wall of the first support plate 401.

[0043] The first scraper 405 is mounted above the first support plate 401 via a sliding connection, and its lower surface maintains a fixed distance from the top wall of the first support plate 401 at all times. This distance ensures that even when the first scraper 405 is performing a translational cleaning stroke, its body will not come into contact with the top wall of the first support plate 401. This distance can be determined and maintained by mounting supports, limit blocks, or directly by the assembly dimensions of the sliding connection mechanism itself.

[0044] During the cleaning process, the first scraper 405 is driven to move downwards, and its lower surface contacts and presses down on the first weld slag support protrusion 402. However, due to the spacing, the end point of the first scraper 405's movement is limited to a position where it will not touch the top wall of the first support plate 401. This effectively prevents wear, scratching, or interference caused by contact between the scraper and the support plate.

[0045] Preferably, the slag support structure 4 further includes a second support plate 406, a plurality of second slag support protrusions 407, and a plurality of second elastic elements 408; the second support plate 406 is located directly below the first support plate 401 and slides in cooperation with the first support plate 401, so that it can slide out from directly below the first support plate 401 to expand the total slag support area formed by the first support plate 401 and the second support, and can slide into directly below the first support plate 401 to reduce the size of the slag support area formed by the first support plate 401 and the second support. The total slag support area is formed by the cooperation of the two components. The second support plate 406 has multiple second receiving holes, which are distributed at intervals and are recessed from the top wall of the second support plate 406 along the direction of gravity. Each second slag support protrusion 407 is respectively received in one of the second receiving holes. The two ends of each second elastic member 408 are respectively connected to the second support plate 406 and one of the second slag support protrusions 407, so that the second slag support protrusions 407 have a tendency to extend along the second receiving holes. This embodiment provides a dynamically adjustable effective slag receiving area by adding a retractable second support plate 406, thereby flexibly adapting to the slag falling range of different sized workpieces 2 or different cutting modes.

[0046] The slag support structure 4 adds a second support plate 406 directly below the first support plate 401. The second support plate 406 slides with the first support plate 401 via a slide rail 411 or a guide mechanism, and can slide out or retract partially or completely from below the first support plate 401 in the horizontal direction. The second support plate 406 also has multiple second receiving holes spaced apart, each containing a second slag support protrusion 407, which is supported by a corresponding second elastic element 408, giving the second slag support protrusion 407 a tendency to extend. The first support plate 401 and the second support plate 406 together form a primary and secondary support plane. The sliding fit can also employ a ball linear guide or drawer slide rail 411 structure; the top surface shape of the second slag support protrusion 407 can also differ from that of the first slag support protrusion 402 to accommodate different slag adhesion characteristics.

[0047] When cutting smaller workpieces 2 or when the slag fall is concentrated, the second support plate 406 can slide directly under the first support plate 401 to minimize the total support area, saving equipment space and facilitating centralized cleaning. When cutting larger workpieces 2 or when the slag splatter is wider, the second support plate 406 slides out from under the first support plate 401, exposing part of its area and connecting it to the side of the first support plate 401 to ensure that all slag is effectively captured. When receiving slag, the second slag-supporting protrusion 407 works on the same principle as the first slag-supporting protrusion 402, using its elastic floating structure to receive and adhere slag, and assisting in breaking the slag column during relative movement. During cleaning, the second support plate 406 can be cleaned alone or together with the first support plate 401.

[0048] Preferably, the sidewall of the first support plate 401 is a second scraper 410. The second scraper 410 is located on the movement trajectory of the plurality of second slag support protrusions 407 following the movement of the second support plate 406. The second scraper 410 is used to press the plurality of second slag support protrusions 407 into the corresponding second receiving holes. In this embodiment, the second scraper 410 formed on the sidewall of the first support plate 401 automatically completes the downward pressing and cleaning of the second slag support protrusions 407 when the second support plate 406 slides into the storage, realizing the self-cleaning function of the extended structure.

[0049] The sidewall of the first support plate 401 facing the sliding direction of the second support plate 406 is configured as a second scraper 410. This second scraper 410 is located directly above the trajectory of the second slag support protrusion 407 as it slides under the first support plate 401 following the second support plate 406. When the second support plate 406 is fully slid in, the lower edge of the second scraper 410 just covers and contacts the top area of ​​all the second slag support protrusions 407.

[0050] When the second support plate 406 needs to be retracted, it is slid directly below the first support plate 401. As the second support plate 406 moves the second slag-supporting protrusion 407 to the position of the second scraper 410, the lower surface of the second scraper 410 contacts and continuously presses down on the moving second slag-supporting protrusion 407, forcing it to overcome the elastic force of the second elastic element 408 and be fully pressed into the corresponding second receiving hole. This process forcibly separates the slag adhering to the second slag-supporting protrusion 407 from the protrusion surface. As the second support plate 406 continues to slide into the retraction position, the scraped-off slag is left behind or pushed to the designated collection area, thus automatically cleaning the extended structure while retracting it.

[0051] Preferably, the second scraper 410 is spaced a certain distance from the top wall of the second support plate 406. This distance ensures that the second scraper 410 only acts on the second weld slag support protrusion 407 when it is pressed down to clean it, without interfering with the top wall of the second support plate 406 or affecting its sliding process.

[0052] During the process of the second support plate 406 sliding under the first support plate 401, when the second slag support protrusion 407 moves to the area below the second scraper 410, the lower surface of the second scraper 410 contacts and begins to press down on the second slag support protrusion 407. Since the second scraper 410 maintains a fixed distance from the top wall of the second support plate 406, the cleaning stroke of the second scraper 410 is limited to the area acting only on the second slag support protrusion 407. Its plate body never contacts or rubs against the top wall of the second support plate 406, thereby effectively removing the slag attached to the second slag support protrusion 407 while avoiding scratching and interference to the surface of the second support plate 406.

[0053] Preferably, the melting point of the first support plate 401 and the melting point of the first slag support protrusion 402 are both higher than the maximum heating temperature of the laser cutting head 302. This material selection ensures that the first support plate 401 and the first slag support protrusion 402 will not soften, melt, or deform when in continuous contact with high-temperature molten slag, thereby maintaining their structural integrity and support function over a long period of time.

[0054] During laser cutting, the first slag support protrusion 402 directly receives the high-temperature slag, which is in a molten or semi-molten state, falling from the cut. Because its melting point is higher than the maximum heating temperature of the laser cutting head 302 (i.e., higher than the highest local temperature that laser cutting may generate), even if slag accumulates, adheres, and continuously transfers high temperatures on its surface, the first slag support protrusion 402 and the first support plate 401 can maintain their inherent shape, hardness, and surface properties, and will not fail due to heat effects, ensuring the reliability and service life of the entire slag support structure 4 under harsh thermal environments. The material can be a heat-resistant alloy, such as a nickel-based high-temperature alloy, or a ceramic or metal-ceramic composite material.

[0055] Preferably, a CNC laser cutting machine further includes a rotary drive mechanism 5, with a slag support structure 4 mounted on a base 501 of the rotary drive mechanism 5; a workpiece clamping mechanism 1 is mounted on the drive unit 502 of the rotary drive mechanism 5, enabling it to rotate relative to the slag support structure 4. The rotary drive mechanism 5 allows the workpiece 2 to rotate while keeping the slag support structure 4 stationary and directly below the gravity of the laser cutting station 301, thereby ensuring reliable slag reception and removal.

[0056] During processing, the drive unit 502 of the rotary drive mechanism 5 drives the workpiece clamping mechanism 1 and the workpiece 2 to rotate around its axis, enabling the laser cutting head 302 to cut at any position in the circumference of the workpiece 2. Throughout the cutting and slag formation process, the slag support structure 4 remains stationary via the base 501 of the rotary drive mechanism 5, and its bearing surface is always precisely positioned directly below the gravity of the laser cutting station 301. This ensures that regardless of the angle at which the workpiece 2 rotates, the molten slag generated during cutting falls vertically to the same fixed bearing area under the influence of gravity, ensuring the smooth formation of the slag and maintaining the structure of the slag column.

[0057] Preferably, a CNC laser cutting machine includes at least one drive roller 6; the drive roller 6 is equipped with a drive motor 7, the output shaft of the drive motor 7 is connected to the drive roller 6 for transmission, so as to drive the drive roller 6 to rotate around its axis; the drive roller 6 is configured to support and push the workpiece 2 to be laser cut toward the laser cutting station 301 by friction. The arrangement of the drive roller 6 and the drive motor 7 realizes the automatic and stable transport of the workpiece 2.

[0058] During processing, the drive motor 7 drives the drive roller 6 to rotate around its axis. The rotating drive roller 6 supports and pushes the workpiece 2 to be laser-cut through the friction between its surface and the workpiece 2, so that the workpiece 2 moves smoothly and continuously toward the laser cutting station 301 along the set feed direction. This automatic conveying process, combined with the rotational motion of the workpiece 2, enables the workpiece 2 to receive circumferential or helical cutting by the laser cutting head 302 during rotational feeding, thereby completing the processing of complex trajectories, and ensuring that the welding slag still falls vertically onto the fixed welding slag support structure 4 below during the movement and rotation of the workpiece 2.

[0059] In summary, based on the workpiece clamping mechanism 1 providing positioning and support for the workpiece 2 to ensure the alignment of the laser cutting head 302, and the laser cutting device 3 clearly defining the energy application area through its laser cutting station 301 and the laser cutting head 302 facing the station, the equipment achieves high-precision processing; based on the slag support structure 4 being located directly below the laser cutting station 301, it directly receives falling slag and can support its high-temperature bottom when the slag is suspended, generating shearing force through the relative movement of the workpiece 2 and the support structure to reliably tear off and remove the slag column; further based on the slag support structure 4 including... The device comprises a first support plate 401, multiple first slag-supporting protrusions 402, and multiple first elastic elements 403. The melting points of the first support plate 401 and the first slag-supporting protrusions 402 are both higher than the maximum heating temperature of the laser cutting head 302, ensuring the structural integrity and functionality at high temperatures. Simultaneously, the annular recess formed by the first slag-supporting protrusions 402 and the wall of the first receiving hole 404 firmly embeds into the bottom of the slag to enhance the tearing and removal effect. The elastic recoil provided by the first elastic elements 403 provides buffering and facilitates cleaning, effectively preventing slag caking and accumulation. Overall, this equipment improves the cleanliness and operational reliability of laser cutting.

[0060] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0062] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A CNC machining laser cutting equipment, characterized in that, include: Workpiece clamping mechanism (1), the workpiece clamping mechanism (1) is used to clamp the workpiece (2) to be laser cut; A laser cutting device (3) has a laser cutting station (301) and a laser cutting head (302). The laser cutting head (302) faces the laser cutting station (301) and is used to cut the workpiece (2) to be laser cut. The slag support structure (4) is located directly below the laser cutting station (301).

2. The CNC machining laser cutting equipment according to claim 1, characterized in that, The slag support structure (4) includes a first support plate (401), a plurality of first slag support protrusions (402), and a plurality of first elastic elements (403); the first support plate (401) has a plurality of first receiving holes (404), the plurality of first receiving holes (404) are distributed at intervals, and the first receiving holes (404) are recessed from the top wall of the first support plate (401) along the direction of gravity; each of the first slag support protrusions (402) is respectively received in one of the first receiving holes (404); the two ends of each of the first elastic elements (403) are respectively connected to the first support plate (401) and one of the first slag support protrusions (402), so that the first slag support protrusions (402) have a tendency to extend along the first receiving hole (404).

3. The CNC machining laser cutting equipment according to claim 2, characterized in that, The slag support structure (4) further includes a first scraper (405), which is slidably connected to the first support plate (401) and is used to press a plurality of the first slag support protrusions (402) into the corresponding first receiving holes (404).

4. The CNC machining laser cutting equipment according to claim 3, characterized in that, The first scraper (405) is spaced a certain distance from the top wall of the first support plate (401).

5. A CNC machining laser cutting equipment according to claim 3, characterized in that, The slag support structure (4) further includes a second support plate (406), a plurality of second slag support protrusions (407), and a plurality of second elastic elements (408); the second support plate (406) is located directly below the first support plate (401) and slides in cooperation with the first support plate (401) so that it can slide out from directly below the first support plate (401) to expand the total slag support area formed by the first support plate (401) and the second support, and can slide into directly below the first support plate (401) to reduce the area between the first support plate (401) and the second support. The total slag support area formed by the support plate (406) is as follows: the second support plate (406) has a plurality of second receiving holes, which are distributed at intervals and are recessed from the top wall of the second support plate (406) along the direction of gravity; each second slag support protrusion (407) is respectively accommodated in one of the second receiving holes; the two ends of each second elastic member (408) are respectively connected to the second support plate (406) and one of the second slag support protrusions (407) so that the second slag support protrusions (407) have a tendency to extend along the second receiving holes.

6. A CNC machining laser cutting equipment according to claim 5, characterized in that, The sidewall of the first support plate (401) is a second scraper (410). The second scraper (410) is located on the movement trajectory of the multiple second slag support protrusions (407) following the movement of the second support plate (406). The second scraper (410) is used to press the multiple second slag support protrusions (407) into the corresponding second receiving hole.

7. A CNC machining laser cutting equipment according to claim 6, characterized in that, The second scraper (410) is spaced a certain distance from the top wall of the second support plate (406).

8. A CNC machining laser cutting equipment according to claim 2, characterized in that, The melting point of the first support plate (401) and the melting point of the first weld slag support protrusion (402) are both higher than the maximum heating temperature of the laser cutting head (302).

9. A CNC machining laser cutting equipment according to claim 1, characterized in that, The CNC machining laser cutting equipment further includes a rotary drive mechanism (5), and the slag support structure (4) is installed on the base (501) of the rotary drive mechanism (5); the workpiece clamping mechanism (1) is installed on the drive part (502) of the rotary drive mechanism (5) so as to be able to rotate relative to the slag support structure (4).

10. A CNC machining laser cutting equipment according to claim 1, characterized in that, The CNC machining laser cutting equipment includes at least one drive roller (6); the drive roller (6) is provided with a drive motor (7), the output shaft of the drive motor (7) is connected to the drive roller (6) for driving the drive roller (6) to rotate about its axis; the drive roller (6) is configured to support and push the workpiece (2) to be laser cut toward the laser cutting station (301) by friction.

Images