A laser cutting machine with local slag cleaning

Abstract

The application discloses a laser cutting machine with local welding slag cleaning, which comprises a laser bed body, a horizontal and vertical movement cutting device arranged on the upper end of the laser bed body, a welding slag suction device fixedly connected to one side of the horizontal and vertical movement cutting device, a material loading platform arranged on the upper end of the laser bed body, a plurality of sundry material collecting vehicles arranged on the bottom of the material loading platform, and a plurality of foot bases arranged on the bottom of the laser bed body at equal intervals; the horizontal and vertical movement cutting device comprises a moving cross beam, a horizontal gear and rack motor moving mechanism arranged on one side of the bottom of the moving cross beam, a vertical gear and rack motor moving mechanism arranged on the upper end of the moving cross beam, and a bottom welding slag suction device fixedly connected to the bottom of the moving cross beam and arranged on the two sides of the bottom foot of the moving cross beam; the welding slag suction device is linked with the bottom welding slag suction device of a two-stage suction system, and the magnetic adsorption and negative pressure air suction are combined, the synchronous displacement is realized along with the laser cutting head, and the effect of local welding slag adsorption is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser cutting, and particularly relates to a laser cutting machine with local welding slag cleaning. BACKGROUND

[0002] In the laser cutting process, the laser beam locally heats the metal workpiece to a high temperature, and the metal surface rapidly melts to form liquid metal. At the same time, the injection of airflow or auxiliary gas helps to blow the molten metal away from the cutting area. However, due to the influence of factors such as the speed, pressure and angle of the cutting gas, the discharge of the molten metal may not be complete, forming some small particles of metal oxide. These metal oxides adhere to the surface of the cutting area, forming welding slag on the rack on the bed. For the welding slag that has already formed, the existing cleaning method has the problems of incomplete cleaning, the need to shovel and clean the rack, low cleaning efficiency, and the generation of smoke and dust during laser cutting. The traditional airflow adsorption method is to install multiple adsorption air gaps equidistantly on both sides of the bottom of the bed to adsorb the whole bed. The adsorption area is large, the effect is not good, and there is no synchronous adsorption treatment for the local area during cutting by the laser head. The present scheme designs a laser cutting machine for local welding slag cleaning, which can effectively solve the problem. SUMMARY

[0003] The purpose of the present application is to solve the problems of traditional welding slag cleaning methods, mainly mechanical cleaning and airflow adsorption. Mechanical cleaning usually relies on brushes or tools to clean the rack on the bed. Since the rack itself is made of metal iron, the welding slag is easily adsorbed on the surface after melting at high temperature. The present scheme uses a combination of rhombus-shaped bearing strips and rhombus-shaped cover plates to enhance the structure. The cover plate is made of high-temperature-resistant material and is not easy to accumulate welding slag on its surface. The cover plate is also separated, making it easier to replace and clean. The problem of welding slag cleaning is solved. The problem of welding slag splashing, poor dust adsorption effect and environmental pollution in the workshop is also solved.

[0004] The present application achieves the above-mentioned purposes through the following technical scheme: a laser cutting machine with local welding slag cleaning, comprising a laser bed, a horizontal and vertical movement cutting device is arranged on the upper end of the laser bed, a welding slag suction device is fixedly connected to one side of the horizontal and vertical movement cutting device, a material loading platform is arranged on the upper end of the laser bed, a plurality of material collecting vehicles are arranged at the bottom of the material loading platform, and a plurality of feet are equidistantly arranged at the bottom of the laser bed.

[0005] The transverse and longitudinal movement cutting device comprises a moving cross beam, one side bottom of the moving cross beam is provided with a transverse gear rack motor moving mechanism, an upper end of the moving cross beam is provided with a longitudinal gear rack motor moving mechanism, the bottom of the moving cross beam is fixedly connected to the bottom foot, two sides of the bottom foot are provided with bottom slag adsorption devices, two side ends of the moving cross beam are synchronously provided with sliding mechanisms for transverse movement of the transverse and longitudinal movement cutting device, and one side of the tail of the laser bed is provided with a bottom dust extraction pipe connecting port.

[0006] Further, the bottom slag adsorption device comprises a fixedly connected cross beam arm, the fixedly connected cross beam arm is fixedly connected to two sides of the bottom of the moving cross beam, one side end of the fixedly connected cross beam arm is fixedly connected to a plurality of inclined triangular slag adsorption boxes, a plurality of magnetic adsorption blocks are arranged in the inclined triangular slag adsorption boxes, a grid is arranged on the upper end of the inclined triangular slag adsorption box, a dust extraction connecting port is arranged on the back of the inclined triangular slag adsorption box, the magnetic adsorption blocks are detachable neodymium iron boron permanent magnets, the surfaces of the magnetic adsorption blocks are covered with high-temperature-resistant silica gel layers, and the magnetic adsorption blocks are connected to the inner walls of the inclined triangular slag adsorption boxes through slide rail structures, a double-stage adsorption system, the bottom slag adsorption device and the slag removal device are designed in an up-down linkage mode, real-time local cleaning and large-range negative pressure suction of the cutting area are combined, compared with a traditional single-nozzle device, the efficiency of slag cleaning is greatly improved, the magnetic and air force composite adsorption inclined triangular slag adsorption box cooperates with the dust extraction connecting port, magnetic metal scraps and non-magnetic dust can be simultaneously captured, the adaptability is stronger, and a plurality of materials such as stainless steel and aluminum alloy can be cut.

[0007] Further, the slag removal device comprises a Z-direction moving cutting device, one side of the lower end of the Z-direction moving cutting device is fixedly connected to an upper end first slag adsorption device, the other side of the lower end of the Z-direction moving cutting device is fixedly connected to an upper end second slag adsorption device, the upper end first slag adsorption device and the upper end second slag adsorption device have a mirror image structure, and a protective shell is arranged at the outer side end, the mirror image double-adsorption device covers no dead angle, can effectively capture splashed slag regardless of the cutting path direction (left to right or right to left), can realize bidirectional interception of slag on complex trajectories such as corners and arcs, eliminates the unilateral adsorption blind area, and can be independently started or stopped or the suction force can be adjusted according to the cutting position, the protective shell wraps the outer side of the adsorption device to form a semi-closed flow guide cavity, blocks external air turbulence (such as workshop ventilation) from interfering with the slag suction airflow, the protective shell adopts a high-temperature-resistant ceramic coating or a double-layer heat insulation structure, ensures that the shell temperature is lower than 50℃, and avoids scalding of the operator.

[0008] Further, the upper end first welding slag adsorption device comprises a fixed box, an upper end corner of the fixed box is internally provided with a dust suction device, an adjacent side of the dust suction device is provided with a filtering device, a lower end center of the fixed box is internally provided with a cyclone welding slag adsorption filtering device, an inner folding welding slag baffle is arranged at the bottom of the fixed box, the dust suction device and the filtering device are connected with each other through pipelines, and the filtering device and the cyclone welding slag adsorption filtering device are connected with each other through pipelines. Through the hierarchical processing of the dust suction device, the filtering device and the cyclone welding slag adsorption filtering device, comprehensive adsorption of dust can be achieved, and whether large metal particles or fine dust can be comprehensively adsorbed.

[0009] Further, the cyclone welding slag adsorption filtering device comprises a plug-in replacement box, a sealing cover is arranged at the upper end of the plug-in replacement box, a cyclone filtering bin is fixedly connected to the lower end of the sealing cover, a plurality of leak holes are uniformly and equidistantly arranged on the upper end surface of the cyclone filtering bin, for throwing out welding slag, a welding slag adsorption port is arranged at the lower end of the cyclone filtering bin, a first air suction pipe connecting port is arranged at the upper end of the cyclone filtering bin, a partition ring plate is fixed to the bottom of the plug-in replacement box outside the bottom of the cyclone filtering bin, for the blocking and storage effect of the falling welding slag after being thrown out, a layer of leak hole magnetic pole adsorption ring plate is arranged outside the ring of the cyclone filtering bin at the lower end of the sealing cover, a second layer of magnetic pole adsorption ring plate is arranged outside the ring of the layer of leak hole magnetic pole adsorption ring plate, dust-containing airflow enters the cyclone filtering bin tangentially from the welding slag adsorption port, coarse particle welding slag is thrown out through the leak holes after impacting the bin wall due to centrifugal force, a layer of leak hole magnetic pole adsorption ring plate is arranged in the leak hole area of the thrown-out welding slag, to preferentially adsorb magnetic metal debris and reduce the risk of leak hole blockage, the second layer of magnetic pole adsorption ring plate expands the magnetic field coverage range to capture escaped micron-level metal dust, and the overall metal debris capture rate is increased by more than 40%, after the separation of welding slag with lighter quality, the welding slag falls along the inside of the magnetic pole adsorption ring plate and is blocked and guided to the bottom of the plug-in replacement box by the partition ring plate, so as to facilitate cleaning and collection, the sealing cover is designed with a silica gel sealing ring and a quick locking buckle, to maintain the system negative pressure when the plug-in box is replaced, prevent dust leakage, and the magnetic pole adsorption function can be closed or replaced with a leak hole ring plate without magnetic force for non-magnetic materials (such as aluminum and copper), only relying on centrifugal separation, the leak hole is designed with a tapered flared design to slow down the airflow wear on the hole edge, and the first air suction pipe connecting port can be selectively connected with a pulse back blowing system to periodically remove the dust attached to the magnetic pole ring plate.

[0010] Further, the filtering device comprises a filtering box, a dust welding slag collecting bag is arranged in the filtering box, a cyclone collecting cover is arranged at the upper end of the filtering box, a second air suction pipe connecting port is arranged at one side end of the cyclone collecting cover, and a dust suction device pipeline connecting port is arranged at the bottom of the filtering box. The collected fine iron dust can be quickly collected into the collecting bag through the cyclone collecting cover, and the dust welding slag collecting bag is a breathable cloth bag.

[0011] Further, the carrier platform comprises a platform frame, a plurality of rhombic bearing strips are arranged on the upper end of the platform frame in uniform equidistance, a rhombic cover plate is arranged on the upper end of the rhombic bearing strip, the included angle between the adjacent sides of the rhombic bearing strip is 60°, a plurality of through slits are uniformly arranged on the surface of the rhombic cover plate, the slit width is less than 2mm, for blocking the large-size welding slag rebounding and rebounding, the slit width is strictly controlled within 2mm, allowing the small particle size of the molten slag (particle size <2mm) to naturally fall, while intercepting the solid-state flying object with a particle size >3mm, the rhombic bearing strips are arranged in a 60° angle, forming a triangular stable unit, which is more firm, and the arrangement is more orderly, and the cover plate is movable, which is convenient to take and clean.

[0012] Further, the box body is provided with a pulling handle on one side of the upper end of the box body, and a tail end fixing connector is arranged on the other side of the upper end of the box body.

[0013] Further, the rhombic cover plate is made of high-temperature resistant material.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. A two-stage adsorption system (bottom slag adsorption device and slag adsorption device linkage) is adopted, combined with magnetic adsorption and negative pressure pneumatic suction, which can capture magnetic metal debris (such as stainless steel) and non-magnetic dust (such as aluminum scrap) at the same time. The slide rail design of the magnetic adsorption block supports quick disassembly, and the dust extraction connection port realizes particle classification treatment through staged filtration (cyclone separation + magnetic pole adsorption ring plate), which improves the efficiency of slag collection and realizes the effect of local slag adsorption by following the synchronous displacement of the laser cutting head. During laser cutting, the spattered slag is collected by adsorption in the first time, thereby ensuring the environment in the workshop;

[0016] 2. The slag adsorption device adopts a mirror image double adsorption structure (first and second adsorption devices at the upper end), which eliminates the single-sided blind area through double-sided coverage, and can realize bidirectional interception of molten slag regardless of the cutting direction (left→right or right→left) or trajectory (arc, corner), and the semi-closed flow guide cavity design of the protection shell reduces external airflow interference and ensures adsorption stability. The device supports independent start and stop and suction force adjustment, and has higher flexibility;

[0017] 3. The unique "centrifugal separation-magnetic separation adsorption-cyclone filtration" three-stage treatment process, the magnetic pole adsorption ring plate and the plug-in replacement box design facilitate quick cleaning of metal debris, the sealing cover uses a silica gel ring and a quick lock buckle, maintains system negative pressure during replacement, avoids dust leakage, protects the shell with a high-temperature resistant ceramic coating or double-layer insulation structure, the surface temperature is lower than 50℃, prevents the operator from being scalded, the rhombus cover plate is movable and made of high-temperature resistant material, and is designed with a gap of less than 2 mm, which not only blocks large particles from splashing back and forth, but also allows small particles to naturally fall, and can be directly disassembled and cleaned during maintenance;

[0018] 4. The load platform uses 60° rhombic bearing strips and triangular stable units for arrangement, improves the bearing strength, the conical flared hole of the cyclone filter bin and the pulse blowback system reduce airflow wear and prolong the service life of the magnetic pole ring plate, and are compatible with non-magnetic materials (only rely on centrifugal separation after the magnetic attraction function is turned off); BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the present application;

[0020] Figure 2 is a schematic view of the transverse and longitudinal movement cutting device of the present application;

[0021] Figure 3 is a schematic view of the bottom slag adsorption device of the present application;

[0022] Figure 4 is a schematic view of the slag adsorption device of the present application;

[0023] Figure 5 is a schematic view of the first slag adsorption device at the upper end of the present application;

[0024] Figure 6 is a schematic view of the cyclone slag adsorption and filtration device of the present application;

[0025] Figure 7 is a schematic view of the filtration device of the present application;

[0026] Figure 8 is a schematic view of the load platform of the present application;

[0027] Figure 9 is a schematic view of the miscellaneous material collection vehicle of the present application;

[0028] In the figure: 1-laser bed, 2-cross and longitudinal movement cutting device, 3-welding slag suction device, 4-loading platform, 5-waste collecting vehicle, 6-foot, 21-moving cross beam, 22-cross gear and rack motor moving mechanism, 23-longitudinal gear and rack motor moving mechanism, 24-bottom welding slag suction device, 11-dust extraction pipe connection port, 241-fixed connection cross beam arm, 242-inclined triangular welding slag suction box, 243-magnetic suction block, 244-grating, 245-dust extraction connection port, 31-Z direction movement cutting device, 32-upper end first welding slag suction device, 33-upper end second welding slag suction device, 34-protection shell, 321-fixed box body, 322-dust extraction device, 323-filtering device, 324-cyclone welding slag suction and filtering device, 325-inwardly folded welding slag baffle, 3241-plug-in replacement box, 3242-sealing cover, 3243-cyclone filtering bin, 3244-welding slag suction port, 3245-first dust extraction pipe connection port, 3246-separation ring plate, 3247-perforated magnetic pole suction ring plate, 3248-two-layer magnetic pole suction ring plate, 3231-filtering box, 3232-dust and welding slag collecting bag, 3233-cyclone collecting cover, 3234-second dust extraction pipe connection port, 3235-dust extraction device pipe connection port, 41-platform frame, 42-rhombus bearing strip, 43-rhombus cover plate, 51-box body, 52-moving wheel, 53-pulling handle, 54-tail end fixed connecting piece. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0031] Combination Figures 1-2The illustrated laser cutting machine with local welding slag cleaning includes a laser bed 1, the upper end of the laser bed 1 is provided with a horizontal and vertical moving cutting device 2, one side of the horizontal and vertical moving cutting device 2 is fixedly connected with a welding slag suction device 3, the upper end of the laser bed 1 is provided with a material loading platform 4, the bottom of the material loading platform 4 is provided with a plurality of sundry material collecting vehicles 5, and the bottom of the laser bed 1 is provided with a plurality of foot supports 6 arranged at equal intervals; the horizontal and vertical moving cutting device 2 includes a moving cross beam 21, the bottom of one side of the moving cross beam 21 is provided with a horizontal gear and rack motor moving mechanism 22, the upper end of the moving cross beam 21 is provided with a vertical gear and rack motor moving mechanism 23, the bottom of the moving cross beam 21 is fixedly connected with a bottom welding slag suction device 24 arranged on the two sides of the bottom foot of the moving cross beam 21, and the two side ends of the moving cross beam 21 are synchronously provided with sliding mechanisms for horizontal movement of the horizontal and vertical moving cutting device 2, and the tail side of the laser bed 1 is provided with a bottom dust suction pipe connecting port 11;

[0032] In combination Figure 3 Figure 9As shown, the bottom welding slag adsorption device 24 comprises a fixed connection beam arm 241 fixedly connected with both sides of the bottom of the moving beam 21, and a plurality of inclined triangular welding slag adsorption boxes 242 are fixedly connected with one side end of the fixed connection beam arm 241. The inclined triangular welding slag adsorption box 242 is internally provided with a plurality of magnetic adsorption blocks 243, the upper end of the inclined triangular welding slag adsorption box 242 is provided with a grid 244, the back of the inclined triangular welding slag adsorption box 242 is provided with a dust extraction connecting port 245, the magnetic adsorption block 243 is a detachable neodymium iron boron permanent magnet, the surface of which is covered with a high-temperature-resistant silica gel layer 2431, and the magnetic adsorption block 243 is connected with the inner wall of the inclined triangular welding slag adsorption box 242 through a slide rail structure. The two-stage adsorption system, the up-down linkage design of the bottom welding slag adsorption device and the welding slag adsorption device, realizes the combination of real-time local cleaning and large-range negative pressure suction in the cutting area, greatly improves the efficiency of slag cleaning compared with the traditional single-nozzle equipment, and the magnetic adsorption block in the magnetic air force composite adsorption inclined triangular welding slag adsorption box and the dust extraction connecting port cooperate to simultaneously capture magnetic metal debris and non-magnetic dust, which has stronger adaptability and is compatible with cutting of various materials such as stainless steel and aluminum alloy. The welding slag adsorption device 3 comprises a Z-direction moving cutting device 31, the lower end of the Z-direction moving cutting device 31 is fixedly connected with an upper end first welding slag adsorption device 32 on one side, and the lower end of the Z-direction moving cutting device 31 is fixedly connected with an upper end second welding slag adsorption device 33 on the other side. The upper end first welding slag adsorption device 32 and the upper end second welding slag adsorption device 33 present a mirror image structure, and are provided with a protective shell 34 at the outer end. The mirror image double-adsorption device can effectively capture the splashing welding slag, realize bidirectional interception of the molten slag of complex trajectories such as corners and arcs, eliminate the unilateral adsorption blind area, and can be independently started and stopped or the suction force can be adjusted according to the cutting position. The protective shell wraps the outside of the adsorption device to form a semi-closed flow guide cavity, blocks the interference of external air turbulence such as workshop ventilation on the adsorption gas flow, and adopts a high-temperature-resistant ceramic coating or a double-layer heat insulation structure to ensure that the shell temperature is lower than 50℃, thereby avoiding scalding of the operator. The upper end first welding slag adsorption device 32 comprises a fixed box body 321, a dust suction device 322 is arranged at an upper end corner in the fixed box body 321, a filter device 323 is arranged on the adjacent side of the dust suction device 322, a cyclone welding slag adsorption filter device 324 is arranged at the lower end center in the fixed box body 321, an inner folding welding slag baffle 325 is arranged at the bottom of the fixed box body 321, the dust suction device 322 and the filter device 323 are connected with each other through pipelines, and the filter device 323 and the cyclone welding slag adsorption filter device 324 are connected with each other through pipelines. Through the hierarchical processing of the dust suction device, the filter device and the cyclone welding slag adsorption filter device, the dust can be comprehensively adsorbed, and both large metal particles and fine dust can be comprehensively adsorbed.The cyclone welding slag adsorption filter device 324 comprises a plug-in replacement box 3241, a sealing cover 3242 is arranged at the upper end of the plug-in replacement box 3241, a cyclone filter bin 3243 is fixedly connected to the lower end of the sealing cover 3242, a plurality of leakage holes are uniformly and equidistantly arranged on the upper end surface of the cyclone filter bin 3243, and the leakage holes are used for throwing out welding slag; the lower end of the cyclone filter bin 3243 is provided with a welding slag adsorption port 3244; the upper end of the cyclone filter bin 3243 is provided with a first air suction pipe connecting port 3245; a partition ring plate 3246 is fixed to the bottom of the plug-in replacement box 3241 outside the bottom of the cyclone filter bin 3243, and is used for the storage of welding slag after the welding slag is thrown out and falls back; a layer of leakage hole magnetic pole adsorption ring plate 3247 is arranged outside the cyclone filter bin 3243 at the lower end of the sealing cover 3242; a second layer of magnetic pole adsorption ring plate 3248 is arranged outside the leakage hole magnetic pole adsorption ring plate 3247; dust-containing gas flows into the cyclone filter bin from the welding slag adsorption port; coarse particle welding slag is thrown out through the leakage holes after being impacted on the wall of the cyclone filter bin due to centrifugal force; a layer of leakage hole magnetic pole adsorption ring plate is arranged in the leakage hole area of the thrown-out welding slag, and magnetic metal scraps are preferentially adsorbed, so that the risk of leakage hole blockage is reduced; the second layer of magnetic pole adsorption ring plate enlarges the coverage range of the magnetic field, and escapes micron-level metal dust is captured, so that the overall metal scrap capture rate is increased by more than 40%, and the welding slag separated due to the lighter quality falls along the inner side of the magnetic pole adsorption ring plate and is blocked and guided to the bottom of the plug-in replacement box by the partition ring plate, so that the welding slag is conveniently cleaned and collected; the sealing cover is designed by using a silica gel sealing ring and a lock buckle, the system negative pressure is maintained when the plug-in replacement box is replaced, dust leakage is prevented, the magnetic pole adsorption function is closed or is replaced by a leakage hole ring plate without magnetic force for non-magnetic materials such as aluminum and copper, and only centrifugal separation is relied on; the leakage hole is designed in a tapered flared manner, air flow abrasion to the hole edge is slowed down, the first air suction pipe connecting port is selectively connected to an impulse back blowing system, and micron dust attached to the magnetic pole ring plate is periodically removed; the filter device 323 comprises a filter box 3231, a dust and welding slag collecting bag 3232 is arranged in the filter box 3231, a cyclone collecting cover 3233 is arranged at the upper end of the filter box 3231, a second air suction pipe connecting port 3234 is arranged at one side end of the cyclone collecting cover 3233, and a dust suction device pipe connecting port 3235 is arranged at the bottom of the filter box 3231; fine iron dust collected can quickly fall and be collected into the collecting bag through the cyclone collecting cover, and the dust and welding slag collecting bag is a breathable cloth bag.The carrier platform 4 comprises a platform frame 41, a plurality of rhombic bearing strips 42 are arranged on the upper end of the platform frame 41 in uniform equidistant manner, a rhombic cover plate 43 is arranged on the upper end of the rhombic bearing strip 42, the included angle between the adjacent side edges of the rhombic bearing strip 42 is 60°, a plurality of through slits are uniformly formed on the surface of the rhombic cover plate 43, the slit width is less than 2 mm, which is used for blocking the large-size welding slag splashed and rebounded, the slit width is strictly controlled within 2 mm, the natural falling of the small-particle-size molten welding slag with a particle size less than 2 mm is allowed, and the solid-state splashes with a particle size greater than 3 mm are intercepted, the rhombic bearing strips are arranged in a 60° intersecting angle to form triangular stable units, which are more firm and arranged more neatly, and the cover plate is movable, which is convenient for taking and cleaning; the scrap collecting vehicle 5 comprises a box body 51, moving wheels 52 are arranged at the four corners of the bottom of the box body 51, a pulling handle 53 is arranged on one side of the upper end of the box body 51, and a tail end fixing connector 54 is arranged on the other side of the upper end of the box body 51; the rhombic cover plate 43 is made of high-temperature-resistant material.

[0033] In operation, a large amount of welding slag is generated during cutting. In order to realize local welding slag cleaning, the device is provided with a bottom welding slag adsorption device 24. The structure of the bottom welding slag adsorption device comprises a beveled triangular welding slag adsorption box 242, and magnetic adsorption blocks 243 are arranged in the welding slag adsorption box. The magnetic adsorption blocks are fixed in the welding slag adsorption box through a slide rail structure. The magnetic adsorption blocks can effectively adsorb metal particles such as iron filings, and the surface is coated with a high-temperature-resistant silicone layer, which has high-temperature resistance. The welding slag adsorption box is connected with a negative pressure suction system through a dust extraction connecting port 245, so as to cooperatively capture welding slag and dust. The welding slag suction device 3 comprises a Z-direction moving cutting device 31 and a double adsorption system. An upper end first welding slag adsorption device 32 and an upper end second welding slag adsorption device 33 realize all-around welding slag capture through a mirror image structure, so as to avoid a single-side adsorption blind area. No matter the direction of the cutting path is from left to right or from right to left, the welding slag adsorption device can effectively capture splashed welding slag. A protective shell 34 wraps the adsorption device to form a semi-closed flow guide cavity, so as to ensure smooth air flow and avoid workshop ventilation interference. The adsorption device is connected with a hierarchical treatment system, which comprises a dust suction device, a filtering device and a cyclone welding slag adsorption filtering device 324. The cyclone filtering bin uses centrifugal force to shake off coarse particle welding slag, and metal scraps are adsorbed through a magnetic pole adsorption ring plate, so as to further improve the welding slag capture efficiency. Non-magnetic material welding slag is treated through centrifugal separation, so as to avoid the risk of leakage hole blockage.

[0034] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0035] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A laser cutting machine with local slag cleaning, comprising a laser bed (1), characterized in that: The laser bed (1) upper end is provided with horizontal and vertical movement cutting device (2), one side of the horizontal and vertical movement cutting device (2) is fixedly connected with the welding slag suction device (3), the laser bed (1) upper end is provided with load platform (4), the load platform (4) bottom is provided with a plurality of sundry collection car (5), the laser bed (1) bottom is provided with a plurality of foot (6) equidistantly arranged; The horizontal and vertical movement cutting device (2) includes a moving beam (21), the moving beam (21) one side bottom is provided with horizontal gear rack motor moving mechanism (22), the moving beam (21) upper end is provided with longitudinal gear rack motor moving mechanism (23), the bottom of the moving beam (21) is fixedly connected to the bottom foot both sides of the moving beam (21) and is provided with bottom slag adsorption device (24), the moving beam (21) both sides end is provided with sliding mechanism synchronously, for the horizontal and vertical movement cutting device (2) horizontal movement, the tail of the laser bed (1) one side is provided with bottom dust extraction pipe connecting port (11); The welding slag suction device (3) includes Z direction movement cutting device (31), one side of the Z direction movement cutting device (31) lower end is fixedly connected with the upper end first slag adsorption device (32), the other side of the Z direction movement cutting device (31) lower end is fixedly connected with the upper end second slag adsorption device (33), the upper end first slag adsorption device (32) and the upper end second slag adsorption device (33) are mirror image structure, the outer side end is provided with protective shell (34); The upper end first slag adsorption device (32) includes a fixed box (321), the fixed box (321) inside upper end one corner is provided with dust collection device (322), the adjacent side of the dust collection device (322) is provided with filter device (323), the inside lower end center of the fixed box (321) is provided with cyclone slag adsorption filter device (324), the bottom of the fixed box (321) is provided with inner folding slag baffle (325), the dust collection device (322) and the filter device (323) are connected with each other through pipeline, the filter device (323) and the cyclone slag adsorption filter device (324) are connected with each other through pipeline; The cyclone welding slag adsorption filter device (324) comprises a plug-in replacement box (3241), a sealing cover (3242) is arranged at the upper end of the plug-in replacement box (3241), a cyclone filter bin (3243) is fixedly connected to the lower end of the sealing cover (3242), a plurality of leakage holes are uniformly and equidistantly arranged on the upper end surface of the cyclone filter bin (3243) and are used for throwing out welding slag, a welding slag adsorption port (3244) is arranged at the lower end of the cyclone filter bin (3243), a first air extraction pipe connecting port (3245) is arranged at the upper end of the cyclone filter bin (3243), a partition ring plate (3246) is fixed to the bottom of the plug-in replacement box (3241) on the outer side of the bottom of the cyclone filter bin (3243), is used for the storage of the welding slag after the welding slag is thrown out, a layer of leakage hole magnetic pole adsorption ring plate (3247) is arranged on the outer side of the cyclone filter bin (3243) at the lower end of the sealing cover (3242), and a second layer of magnetic pole adsorption ring plate (3248) is arranged on the outer side of the leakage hole magnetic pole adsorption ring plate (3247). The filter device (323) comprises a filter box (3231), a dust and welding slag collecting bag (3232) is arranged in the filter box (3231), a cyclone collecting cover (3233) is arranged at the upper end of the filter box (3231), a second air extraction pipe connecting port (3234) is arranged on one side of the cyclone collecting cover (3233), and a dust extraction device pipe connecting port (3235) is arranged at the bottom of the filter box (3231).

2. A laser cutting machine with local slag cleaning according to claim 1, characterized in that: The bottom welding slag adsorption device (24) comprises a fixed connection cross beam arm (241), the fixed connection cross beam arm (241) is fixedly connected to the bottom of the moving cross beam (21) on both sides, a plurality of inclined surface triangular welding slag adsorption boxes (242) are fixedly connected to one side of the fixed connection cross beam arm (241), a plurality of magnetic adsorption blocks (243) are arranged in the inclined surface triangular welding slag adsorption boxes (242), a grating (244) is arranged at the upper end of the inclined surface triangular welding slag adsorption boxes (242), a dust extraction connecting port (245) is arranged at the back of the inclined surface triangular welding slag adsorption boxes (242), the magnetic adsorption blocks (243) are detachable neodymium-iron-boron permanent magnets, a high-temperature-resistant silica gel layer (2431) is arranged on the surface of the magnetic adsorption blocks (243), and the magnetic adsorption blocks (243) are connected to the inner wall of the inclined surface triangular welding slag adsorption boxes (242) through a sliding rail structure.

3. A laser cutting machine with local slag cleaning according to claim 2, characterized in that: The material loading platform (4) comprises a platform frame (41), a plurality of rhombic bearing strips (42) are uniformly and equidistantly arranged on the upper end of the platform frame (41), a rhombic cover plate (43) is arranged at the upper end of the rhombic bearing strip (42), the included angle between adjacent side edges of the rhombic bearing strip (42) is 60°, a plurality of through slits are uniformly arranged on the surface of the rhombic cover plate (43), the width of the slits is less than 2 mm, and the slits are used for blocking large-size welding slag that is splashed and rebounded.

4. A laser cutting machine with local slag cleaning according to claim 3, characterized in that: The mixed material collecting vehicle (5) comprises a box body (51), the bottom of the box body (51) is provided with moving wheels (52) at four corners, one side of the upper end of the box body (51) is provided with a pulling handle (53), and the other side of the upper end of the box body (51) is provided with a tail end fixing connector (54).

5. A laser cutting machine with local slag cleaning according to claim 4, characterized in that: The rhombic cover plate (43) is made of high-temperature-resistant material.

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