Laser cutting device for metal parts

Abstract

The present invention relates to the field of laser cutting technology, and specifically to a laser cutting device for metal parts, comprising: a machine table, a cutting mechanism for cutting parts, and an adjusting mechanism for adjusting the cutting position; the cutting mechanism comprises: a protective shell, a protective plate slidably mounted on the bottom of the protective shell, a guide member for guiding the protective plate, and a laser cutting head. In the present invention, by setting a cooling component, it is possible to first cool the laser cutting head, and then start the laser cutting head to cut the parts, so that the laser cutting head can be cooled in time, so that the laser cutting head maintains a stable working temperature, and the cutting effect of the laser cutting head is guaranteed, and the problem that the existing laser cutting device cannot cool the laser cutting head in time during use, which easily causes the laser cutting head to overheat and affect the cutting efficiency and service life.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a laser cutting device for metal parts. Background Art

[0002] Laser cutting is a process in which laser light is emitted from a laser device and focused into a high-power density laser beam through an optical path system to replace the traditional mechanical knife. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting point or boiling point. At the same time, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. It has the characteristics of high precision, fast cutting, no limitation on cutting patterns, automatic typesetting to save materials, smooth incisions, and low processing costs.

[0003] A Chinese patent with application number CN202410355588.6 discloses a laser cutting head assembly, which relates to the field of laser cutting head technology, including a laser sealing cylinder, a laser head, a mounting ring, and a fixed sleeve; a conical sleeve coaxially fixed to the lower end of the fixed sleeve, the outer diameter of the conical sleeve increases from top to bottom, the laser head is arranged in the conical sleeve, a strip slit is provided on the periphery of the conical sleeve, and a connecting cavity interconnected with each other is provided inside the conical sleeve and the fixed sleeve, and a plurality of exhaust ports that are connected to the connecting cavity are provided on the inner wall of the conical sleeve; a driving unit is provided on the fixed sleeve, and the driving unit is used to drive the elastic contraction of the conical sleeve to close the portion of the strip slit located on the conical sleeve. The above invention is provided with a fixed sleeve, a conical sleeve and a connecting cavity, and an exhaust port is provided on the inner wall of the conical sleeve, and the external exhaust device transports water vapor to the connecting cavity through the exhaust port to prevent the water vapor on the surface of the workpiece from escaping, causing the refraction of the laser light, thereby causing the attenuation of the laser and affecting the cutting effect.

[0004] When using the existing laser cutting device, the laser cutting head is first started to cut the parts, and then the cooling is started when the working temperature of the laser cutting head is high. With this cooling method, it is impossible to determine the time to start the cooling. When the laser cutting head is cutting the parts, a lot of heat will be generated. If it cannot be cooled in time, the laser cutting head will easily overheat and affect the cutting efficiency and service life.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a laser cutting device for metal parts which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0008] A laser cutting device for metal parts, comprising: a machine platform, a cutting mechanism for cutting parts, and an adjusting mechanism for adjusting a cutting position;

[0009] The cutting mechanism includes: a protective shell, a protective plate slidably mounted on the bottom of the protective shell, a guide member for guiding the protective plate, a laser cutting head, a cylinder sleeved on the laser cutting head, a reset component for driving the laser cutting head to reset, a cooling component for cooling the laser cutting head, a dust removal component for removing dust from the laser cutting head, and a drying component for drying parts;

[0010] The cooling assembly comprises: a movable pipe, a cooling pipe connected to the movable pipe, and a control member for controlling the cooling medium to enter the cooling pipe;

[0011] The cooling medium flows into the movable tube, so that the laser cutting head and the cylinder are moved out of the protective shell; during the movement of the cylinder, the protective plate is opened, and the cooling medium flows into the cooling tube to cool the laser cutting head.

[0012] Furthermore, the control component includes: a fixing bar fixedly installed in the cooling pipe, a through hole opened on the fixing bar, a movable rod movably installed in the through hole, a sealing plug fixedly installed on the movable rod, and a linkage spring that drives the sealing plug to reset.

[0013] Furthermore, the guide member includes: a fixed shell fixedly mounted on the protective shell, an L-shaped plate movably mounted in the fixed shell, and a reset member driving the protective plate to reset; the L-shaped plate is fixedly connected to the protective plate.

[0014] Furthermore, the reset member includes: a slide groove opened on the fixed shell, a slider slidably installed in the slide groove, a circular hole opened on the slider, a fixed rod movably installed in the circular hole, and a reset spring for driving the protective plate to reset; the slider is fixedly connected to the L-shaped plate.

[0015] Furthermore, the reset assembly includes: a telescopic rod fixedly mounted on the mounting plate, and a second reset spring for driving the laser cutting head to reset.

[0016] Furthermore, the dust removal assembly includes: a sac body fixedly installed between the L-shaped plate and the fixed shell, an annular tube sleeved on the cylinder, an air guide pipe 1 connecting the sac body and the annular tube, and an air guide pipe 2 connecting the annular tube and the cylinder; the annular tube is fixedly connected to the mounting plate.

[0017] Furthermore, the cooling assembly also includes: a cooling box, a pump body connected to the cooling box, a fixed pipe connected to the pump body, and a sealing ring fixedly mounted on the movable pipe; the fixed pipe is movably connected to the movable pipe; the cooling pipe surrounds the laser cutting head and is connected to the cooling box.

[0018] Furthermore, the drying component includes: a connecting shell fixedly mounted on the protective shell, an air inlet pipe connected between the connecting shell and the annular tube, an air pump connected to the connecting shell, and an air outlet pipe connected to the air pump.

[0019] Furthermore, the cooling tube is fixedly sleeved with heat dissipation fins.

[0020] Furthermore, the adjustment mechanism includes: a lateral movement component for driving the laser cutting head to move lateral, a longitudinal movement component for driving the laser cutting head to move longitudinally, and a vertical movement component for driving the laser cutting head to move vertically.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention discloses a laser cutting device for metal parts. Through the setting of a cooling component, the laser cutting head can be cooled first and then started to cut the parts. Thus, the laser cutting head can be cooled in time, so that the laser cutting head maintains a stable working temperature, thereby ensuring the cutting effect of the laser cutting head. This solves the problem that the laser cutting head cannot be cooled in time during use of the existing laser cutting device, which easily causes the laser cutting head to overheat and affect the cutting efficiency and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] Figure 1 A three-dimensional schematic diagram of a laser cutting device for metal parts according to the present invention;

[0025] Figure 2 A three-dimensional schematic diagram of a component protection frame of a laser cutting device for metal parts of the present invention;

[0026] Figure 3 It is a three-dimensional schematic diagram of a component adjustment mechanism of a laser cutting device for metal parts of the present invention;

[0027] Figure 4 A laser cutting device for metal parts of the present invention Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A three-dimensional schematic diagram of a component cutting mechanism of a laser cutting device for metal parts of the present invention;

[0029] Figure 6 A three-dimensional schematic diagram of a component protection shell of a laser cutting device for metal parts of the present invention;

[0030] Figure 7 It is a three-dimensional schematic diagram of a component cutting mechanism of a laser cutting device for metal parts of the present invention from another angle;

[0031] Figure 8 A schematic cross-sectional view of a component protection shell of a laser cutting device for metal parts of the present invention;

[0032] Fig. 9 A laser cutting device for metal parts of the present invention Figure 8 Enlarged view of point B in the middle;

[0033] Fig.10 A schematic cross-sectional view of a component protection shell of a laser cutting device for metal parts of the present invention from another angle;

[0034] Fig.11 A three-dimensional schematic diagram of a component cooling box of a laser cutting device for metal parts of the present invention;

[0035] Fig.12 A laser cutting device for metal parts of the present invention Fig.11 Enlarged view of point C in the middle;

[0036] Fig.13 A laser cutting device for metal parts of the present invention Fig.11 Enlarged view of point D in the middle;

[0037] Fig.14 The present invention is a schematic cross-sectional view of a component connection shell of a laser cutting device for metal parts.

[0038] In the figure:

[0039] 1. Machine; 2. Protection frame; 3. Cutting mechanism; 31. Protection shell; 32. Protection plate; 33. Guide member; 331. Fixed shell; 332. L-shaped plate; 333. Reset member; 3331. Slider; 3332. Fixed rod; 3333. Reset spring 1; 34. Laser cutting head; 35. Cylinder; 36. Reset assembly; 361. Telescopic rod; 362. Reset spring 2; 37. Cooling assembly; 371. Cooling box; 372. Pump body; 373. Fixed pipe; 374. Movable pipe; 375. Sealing ring; 376. Cooling pipe; 377. Control part; 3771. Movable rod; 3772. Sealing plug; 3773. Linking spring; 3774. Fixing strip; 38. Dust removal assembly; 381. Capsule; 382. Ring tube; 383. Air duct one; 384. Air duct two; 39. Drying assembly; 391. Connecting shell; 392. Air inlet pipe; 393. Air pump; 394. Air outlet pipe; 395. Heat dissipation fin; 4. Adjustment mechanism; 41. Lateral moving assembly; 42. Longitudinal moving assembly; 43. Vertical moving assembly. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0041] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] like Figures 1 to 14 As shown, the present invention provides a laser cutting device for metal parts, comprising: a machine platform 1, a protection frame 2, the protection frame 2 is fixedly installed on the top of the machine platform 1, a cutting mechanism 3 for cutting parts, and an adjustment mechanism 4 for adjusting the position of the cutting mechanism 3.

[0043] The cutting mechanism 3 includes: a protective shell 31, a protective plate 32 slidably installed on the bottom of the protective shell 31; there are at least two protective plates 32, which are symmetrically slidably installed on both sides of the bottom of the protective shell 31, and arc grooves are opened on the side walls of the two protective plates 32, guide members 33 for guiding the protective plates 32, a laser cutting head 34, and a mounting plate for mounting the laser cutting head 34, the mounting plate is located in the inner cavity of the protective shell 31, and a cylinder 35 is sleeved on the laser cutting head 34, the cylinder 35 is fixedly installed on the bottom of the mounting plate, a reset component 36 for driving the laser cutting head 34 to reset, a cooling component 37 for cooling the laser cutting head 34, a dust removal component 38 for removing dust from the laser cutting head 34, and a drying component 39 for drying parts.

[0044] When the laser cutting head 34 is not in use, it is located inside the protective shell 31. At this time, the two protective plates 32 seal the protective shell 31. Through the cooperation between the protective shell 31 and the protective plates 32, the laser cutting head 34 can be protected from dust when the laser cutting device is not in use, thereby avoiding dust from adhering to the surface of the laser cutting head 34, which will interfere with the normal transmission and focusing of the laser beam and cause a decrease in cutting accuracy. The cutting path that should have been precise may deviate due to the interference of dust, affecting the quality of the cut product and ensuring the cutting effect of the parts.

[0045] It is supplemented here that the cylinder 35 matches the arc groove.

[0046] The cooling assembly 37 includes: a movable pipe 374 , a cooling pipe 376 connected to the movable pipe 374 , the cooling pipe 376 surrounds the laser cutting head 34 and is connected to the cooling box 371 , and a control member 377 for controlling the cooling medium to enter the cooling pipe 376 .

[0047] The control component 377 includes: a fixing strip 3774 fixedly mounted on the cooling tube 376, a through hole opened on the fixing strip 3774, a movable rod 3771 movably mounted in the through hole, a sealing plug 3772 fixedly mounted on the movable rod 3771, and a linkage spring 3773 for driving the sealing plug 3772 to return to its original position, wherein one end of the linkage spring 3773 is fixedly mounted on the sealing plug 3772, and the other end of the linkage spring 3773 is fixedly mounted on the fixing strip 3774.

[0048] The cooling assembly 37 also includes: a cooling box 371, which is connected to a cold source so that the cooling medium in the cooling box 371 can be cooled, thereby ensuring the cooling effect on the laser cutting head 34; the cooling box 371 is fixedly installed on the protective shell 31, a pump body 372 connected to the cooling box 371, and a fixed pipe 373 connected to the pump body 372, the fixed pipe 373 is movably connected to the movable pipe 374, and a sealing ring 375 is fixedly sleeved on the movable pipe 374. Through the setting of the sealing ring 375, the gap between the movable pipe 374 and the fixed pipe 373 can be sealed to prevent the cooling medium from leaking from the gap between the movable pipe 374 and the fixed pipe 373; a fixed plate is fixedly installed in the protective shell 31, and the fixed pipe 373 and the pump body 372 are both fixedly installed on the fixed plate.

[0049] When cutting parts, start the pump body 372 to extract the cooling medium in the cooling box 371, and make the cooling medium flow to the fixed pipe 373, and then flow into the movable pipe 374. As the hydraulic pressure of the fixed pipe 373 and the movable pipe 374 continues to increase, under the action of the hydraulic pressure, the movable pipe 374 drives the mounting plate to move downward, thereby driving the laser cutting head 34 and the cylinder 35 to move out of the protective shell 31. During the movement of the cylinder 35, it will abut against the arc surface of the arc groove on the top of the protective plate 32, thereby driving the two protective plates 32 away from each other, and then opening the protective plate 32. At this time, the laser cutting head 34 moves to the outside of the protective shell 31, thereby preparing for subsequent cutting.

[0050] Due to the action of the reset component 36, the movable tube 374 stops moving after moving to a certain length. At this time, since the overall hydraulic pressure in the fixed tube 373 and the movable tube 374 continues to increase, the hydraulic pressure pushes the sealing plug 3772 to move, so that the sealing plug 3772 has no sealing effect on the inner cavity of the cooling tube 376. In this process, the sealing plug 3772 drives the movable rod 3771 to move and compresses the linkage spring 3773. At this time, the cooling medium flows to the cooling tube 376, thereby cooling the laser cutting head 34. When the cooling component 37 is started, the laser cutting head 34 can be started to cut the parts. Since the cooling tube 376 surrounds the outside of the laser cutting head 34, the surrounding design makes the cooling area of ​​the cooling tube 376 for the laser cutting head 34 larger, which is conducive to rapid cooling of the laser cutting head 34.

[0051] In the present application, by setting up the cooling component 37, it is possible to first cool the laser cutting head 34 and then start the laser cutting head 34 to cut the parts, so that the laser cutting head 34 can be cooled in time, so that the laser cutting head 34 maintains a stable operating temperature, thereby ensuring the cutting effect of the laser cutting head 34, and solving the problem that the existing laser cutting device cannot cool the laser cutting head 34 in time during use, which easily causes the laser cutting head 34 to overheat and affect the cutting efficiency and service life.

[0052] It is added here that the cooling medium is preferably cooling oil.

[0053] In the present application, by starting the pump body 372, on the one hand, the laser cutting head 34 is driven to move to the outside of the protective shell 31 to prepare for subsequent cutting; on the other hand, the cooling medium is transported to the cooling pipe 376 to cool the laser cutting head 34, thereby ensuring the cutting effect of the laser cutting head 34; at the same time, the protective plate 32 is driven to open, and the dust removal component 38 is operated, so that the laser cutting head 34 can be dust-removed before the laser cutting device is used, thereby further ensuring the cutting effect of the parts.

[0054] The guide member 33 includes: a fixed shell 331 fixedly installed on the side wall of the protective shell 31, an L-shaped plate 332 movably installed in the fixed shell 331, the L-shaped plate 332 is fixedly connected to the side wall of the protective plate 32, and a reset member 333 that drives the protective plate 32 to reset; the reset member 333 includes: a slide groove provided on the fixed shell 331, a slider 3331 slidably installed in the slide groove, the slider 3331 is fixedly connected to the side wall of the L-shaped plate 332, a round hole provided on the slider 3331, and a fixed rod 3332 movably installed in the round hole, both ends of the fixed rod 3332 are fixedly installed in the slide groove, and a reset spring 3333 drives the protective plate 32 to reset, one end of the reset spring 3333 is fixedly installed in the slide groove, and the other end of the reset spring 3333 is fixedly installed on the slider 3331.

[0055] When the two protective plates 32 move away from each other, they can drive the adjacent L-shaped plates 332 to move in the inner cavity of the fixed shell 331. Since the side walls of the L-shaped plates 332 fit the inner walls of the fixed shell 331, the fixed shell 331 can guide and limit the L-shaped plates 332 when they move, thereby guiding and limiting the protective plates 32.

[0056] When the L-shaped plate 332 moves, it can drive the adjacent slider 3331 to slide in the inner cavity of the slide groove. Through the setting of the fixed rod 3332, on the one hand, the slider 3331 can be limited and guided, thereby further limiting and guiding the protective plate 32; on the other hand, it can prevent the slider 3331 from separating from the slide groove, so that the protective plate 32 is always in contact with the protective shell 31, thereby avoiding the deviation of the protective plate 32 when it moves.

[0057] When the slider 3331 moves, the reset spring 3333 can be deformed; when the laser cutting head 34 is used up, the laser cutting head 34 moves into the protective shell 31, so that the cylinder 35 moves into the protective shell 31, and the cylinder 35 is separated from the two protective plates 32. At this time, the elastic force of the reset spring 3333 can drive the slider 3331 to reset, and the slider 3331 drives the L-shaped plate 332 to reset, and the L-shaped plate 332 drives the protective plate 32 to reset, so that the two protective plates 32 close the protective shell 31 again, thereby realizing dust-proof protection for the laser cutting head 34, avoiding dust adhering to the surface of the laser cutting head 34, which will interfere with the normal transmission and focusing of the laser beam, resulting in a decrease in cutting accuracy, resulting in the original precise cutting path may deviate due to the interference of dust, affecting the quality of the cut product, and ensuring the cutting effect of metal parts.

[0058] The reset assembly 36 includes: a telescopic rod 361 fixedly mounted on the mounting plate, the other end of the telescopic rod 361 fixedly mounted on the fixing plate, a reset spring 362 driving the laser cutting head 34 to reset, one end of the reset spring 362 fixedly mounted on the bottom of the fixing plate, and the other end of the reset spring 362 fixedly mounted on the top of the mounting plate.

[0059] When the laser cutting head 34 is moved out of the protective shell 31, the mounting plate drives the telescopic rod 361 to extend and drives the second reset spring 362 to deform; when the laser cutting head 34 is used, the pump body 372 stops running, so that the fixed pipe 373 and the movable pipe 374 can no longer maintain hydraulic pressure. At this time, the elastic force of the second reset spring 362 can drive the mounting plate to reset upward, thereby driving the laser cutting head 34 to move into the protective shell 31;

[0060] At the same time, the cylinder 35 is driven to move to the inside of the protective shell 31 through the mounting plate, so that the round tube has no squeezing effect on the protective plate 32. Under the action of the reset member 333, the two protective plates 32 can be reset, thereby sealing the protective shell 31.

[0061] When the laser cutting device is not in use, the protective shell 31 is sealed by the protective plate 32, which can provide dust protection for the laser cutting head 34, thereby preventing dust from adhering to the surface of the laser cutting head 34, which would interfere with the normal transmission and focusing of the laser beam and cause a decrease in cutting accuracy. The cutting path that should have been precise may deviate due to the interference of dust, affecting the quality of the cut product, thereby ensuring the cutting effect of metal parts.

[0062] It should be added here that the maximum extension length of the telescopic rod 361 is less than the overall length of the fixed tube 373 and the movable tube 374, so that when the telescopic rod 361 is extended to the maximum extension length, the movable tube 374 no longer moves, thereby avoiding the fixed tube 373 and the movable tube 374 from separating.

[0063] The dust removal assembly 38 includes: a sac 381 fixedly installed between the side wall of the L-shaped plate 332 and the inner wall of the fixed shell 331, an annular tube 382 sleeved on the outside of the cylinder 35 and fixedly installed on the bottom of the mounting plate, an air guide tube 1 383 connecting the sac 381 and the annular tube 382, ​​and an air guide tube 2 384 connecting the annular tube 382 and the cylinder 35.

[0064] When the two protective plates 32 move away from each other, the adjacent L-shaped plates 332 can be driven away from each other, thereby squeezing the adjacent capsules 381, so that the gas in the capsules 381 is discharged, and the gas enters the annular tube 382 through the air guide pipe 1 383, and then enters the cylinder 35 through the air guide pipe 2 384. At this time, the gas is discharged from the cylinder 35, and the airflow can remove the dust that may be attached to the surface of the laser cutting head 34, so that the laser cutting head 34 can be dust-removed before the laser cutting device is used, thereby further ensuring the cutting effect of metal parts.

[0065] Through the cooperation of the protective shell 31, the protective plate 32, and the dust removal component 38, on the one hand, when the laser cutting device is not in use, the laser cutting head 34 can be protected from dust, thereby preventing dust from adhering to the surface of the laser cutting head 34 and interfering with the normal transmission and focusing of the laser beam, resulting in a decrease in cutting accuracy. The cutting path that should have been precise may deviate due to the interference of dust, affecting the quality of the cut product, thereby ensuring the cutting effect of metal parts; on the other hand, the laser cutting head 34 can be dusted before the laser cutting device is used, further ensuring the cutting effect of metal parts.

[0066] During the resetting process of the two protective plates 32, since the capsule 381 itself has a certain elasticity, the capsule 381 can also drive the movable plate L-shaped plate 332 to reset when it recovers, and then drive the adjacent protective plates 32 to reset; in this process, through the mutual cooperation between the capsule 381 and the reset spring 2 362, the protective plates 32 can be jointly driven to reset, so that the reset of the protective plates 32 is subject to the double elastic force, so that the two protective plates 32 are tightly fitted, and the sealing effect of the protective shell 31 is good.

[0067] It should be added here that the part of the second air guide tube 384 located inside the protective shell 31 is a retractable hose. When the annular tube 382 moves, it can drive the retractable hose to retract, thereby not causing movement interference.

[0068] The drying component 39 includes: a connecting shell 391 fixedly mounted on the protective shell 31, a movable door is installed on the side wall of the connecting shell 391, a desiccant is placed inside the connecting shell 391, and the connecting shell 391 is sleeved on the cooling pipe 376, an air inlet pipe 392 connecting the connecting shell 391 and the annular pipe 382, ​​an air pump 393 connected to the connecting shell 391, and an air outlet pipe 394 connected to the air pump 393.

[0069] When the cooling medium flows back to the cooling box 371 through the cooling pipe 376, the cooling medium cools the laser cutting head 34, thereby increasing the temperature of the cooling medium. When the heated cooling medium flows through the cooling pipe 376 located in the connecting shell 391, the heat dissipated from the cooling medium can heat the air in the inner cavity of the connecting shell 391. At the same time, the hot air can be sucked out by starting the air pump 393 and transported to the air outlet pipe 394. The hot air is discharged through the air outlet pipe 394 and blown onto the surface of the part to be cut, thereby drying the surface of the part and avoiding the problem that when there is water on the surface of the part, the water will hinder the transmission of laser energy, resulting in insufficient cutting depth or uneven cutting surface.

[0070] A heat dissipation fin 395 is fixedly mounted on the cooling tube 376 , and the heat dissipation fin 395 is located inside the connecting shell 391 .

[0071] By setting the heat dissipation fins 395, the heat in the cooling medium can be quickly dissipated, thereby improving the heat dissipation efficiency of the cooling medium. On the one hand, the air in the inner cavity of the connecting shell 391 can be quickly heated, and on the other hand, a preliminary cooling effect is achieved on the cooling medium.

[0072] Through the cooperation between the heat dissipation fins 395 and the cold source, a double cooling effect can be achieved on the cooling medium, thereby improving the cooling efficiency of the cooling medium and ensuring the cooling effect on the laser cutting head 34.

[0073] Since the heat dissipation fins 395 can quickly dissipate the heat in the cooling medium and heat the air in the inner cavity of the connecting shell 391, the effect of drying the surface of the part is improved, and the problem of water hindering the transmission of laser energy and causing insufficient cutting depth or uneven cutting surface is further avoided when there is water on the surface of the part.

[0074] When the laser cutting head 34 cuts the part, the heat generated heats the moisture remaining on the surface of the part, and the water vapor generated by the heating of the moisture will escape into the cylinder 35. Therefore, when the air pump 393 is started to suck out the hot air in the connecting shell 391, the water vapor will enter the air guide pipe 384 through the cylinder 35 under the action of the air flow, enter the annular pipe 382 through the air guide pipe 384, and then enter the connecting shell 391 through the air inlet pipe 392, thereby avoiding the escape of water vapor on the surface of the part, refraction of the laser light, and further causing the attenuation of the laser, affecting the cutting effect.

[0075] By setting the cylinder 35, water vapor can be collected in a centralized manner, so that after the water vapor enters the cylinder 35, it will not escape, so that the water vapor extraction effect is better, and the influence of water vapor on the laser head is further avoided.

[0076] The air in the connecting shell 391 can be dehumidified by the desiccant, thereby ensuring that the gas exhausted from the connecting shell 391 is dry gas, thereby further improving the drying effect on the parts. The desiccant can be easily replaced by opening the movable door.

[0077] In the present application, by starting the air pump 393, on the one hand, the surface of the part can be dried, avoiding the problem that when there is water on the surface of the part, the water will hinder the transmission of laser energy, resulting in insufficient cutting depth or uneven cutting surface; on the other hand, the water vapor extraction effect is better, thereby avoiding the escape of water vapor on the surface of the part, refraction of the laser light, and further causing laser attenuation, affecting the cutting effect.

[0078] It should be added here that the heat dissipation fins 395 are preferably: spiral fins: compared with common straight fins, spiral fins not only achieve a larger heat dissipation area in a limited space, but also have a good air guidance effect, which can further improve the heat dissipation efficiency, thereby having a good cooling effect on the cooling medium.

[0079] The adjustment mechanism 4 includes: a lateral movement component 41 for driving the laser cutting head 34 to move lateral, a longitudinal movement component 42 for driving the laser cutting head 34 to move longitudinally, and a vertical movement component 43 for driving the laser cutting head 34 to move vertically.

[0080] When the part is placed at the specified position of the machine 1, the laser cutting head 34 can be driven to move horizontally by starting the horizontal moving component 41, the laser cutting head 34 can be driven to move vertically by starting the vertical moving component 42, and the laser cutting head 34 can be driven to move vertically by starting the vertical moving component 43, so that any position of the part can be cut, thereby improving the adaptability of the present invention.

[0081] It is supplemented here that the lateral moving assembly 41 , the longitudinal moving assembly 42 and the vertical moving assembly 43 are common linear moving modules.

[0082] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0083] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A laser cutting device for metal parts, characterized in that: include: Machine table, cutting mechanism for cutting parts, and adjusting mechanism for adjusting cutting position; The cutting mechanism includes: a protective shell, a protective plate slidably mounted on the bottom of the protective shell, a guide member for guiding the protective plate, a laser cutting head, a mounting plate for mounting the laser cutting head, a cylinder sleeved on the laser cutting head, a reset component for driving the laser cutting head to reset, a cooling component for cooling the laser cutting head, a dust removal component for removing dust from the laser cutting head, and a drying component for drying parts; The cooling assembly comprises: a movable pipe, a cooling pipe connected to the movable pipe, and a control member for controlling the cooling medium to enter the cooling pipe; The cooling medium flows into the movable tube, so that the laser cutting head and the cylinder are moved out of the protective shell; during the movement of the cylinder, the protective plate is opened, and the cooling medium flows into the cooling tube to cool the laser cutting head.

2. A laser cutting device for metal parts as claimed in claim 1, characterized in that: The control component includes: a fixing bar fixedly installed in the cooling pipe, a through hole opened on the fixing bar, a movable rod movably installed in the through hole, a sealing plug fixedly installed on the movable rod, and a linkage spring for driving the sealing plug to return to its original position.

3. A laser cutting device for metal parts as claimed in claim 1, characterized in that: The guide member comprises: a fixed shell fixedly mounted on the protective shell, an L-shaped plate movably mounted in the fixed shell, and a reset member driving the protective plate to reset; the L-shaped plate is fixedly connected to the protective plate.

4. A laser cutting device for metal parts as claimed in claim 3, characterized in that: The reset component includes: a slide groove opened on the fixed shell, a slider slidably installed in the slide groove, a circular hole opened on the slider, a fixed rod movably installed in the circular hole, and a reset spring that drives the protective plate to reset; the slider is fixedly connected to the L-shaped plate.

5. A laser cutting device for metal parts as claimed in claim 1, characterized in that: The reset assembly comprises: a telescopic rod fixedly mounted on the mounting plate, and a second reset spring for driving the laser cutting head to reset.

6. A laser cutting device for metal parts as claimed in claim 4, characterized in that: The dust removal assembly includes: a sac fixedly installed between the L-shaped plate and the fixed shell, an annular tube sleeved on the cylinder, an air guide tube 1 connecting the sac and the annular tube, and an air guide tube 2 connecting the annular tube and the cylinder; the annular tube is fixedly connected to the mounting plate.

7. A laser cutting device for metal parts as claimed in claim 1, characterized in that: The cooling assembly also includes: a cooling box, a pump body connected to the cooling box, a fixed pipe connected to the pump body, and a sealing ring fixedly sleeved on the movable pipe; the fixed pipe is movably connected to the movable pipe; the cooling pipe surrounds the laser cutting head and is connected to the cooling box.

8. A laser cutting device for metal parts as claimed in claim 1, characterized in that: The drying component comprises: a connecting shell fixedly mounted on the protective shell, an air inlet pipe connected between the connecting shell and the annular pipe, an air pump connected to the connecting shell, and an air outlet pipe connected to the air pump.

9. A laser cutting device for metal parts as claimed in claim 8, characterized in that: The cooling tube is fixedly sleeved with heat dissipation fins.

10. The laser cutting device for metal parts according to claim 1, characterized in that: The adjustment mechanism comprises: a lateral movement component for driving the laser cutting head to move lateraly, a longitudinal movement component for driving the laser cutting head to move longitudinally, and a vertical movement component for driving the laser cutting head to move vertically.

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