Laser cutting machine with liquid cooling structure and use method

Abstract

The present invention relates to the technical field of laser cutting machines, and discloses a laser cutting machine with a liquid cooling structure and a method of using the same, including: a machine tool, a laser is fixedly mounted on a movable gantry at the top of the machine tool, a water tank is fixedly sleeved on the top side wall of the laser, and a heat-conducting cover is arranged directly below the water tank, and the heat-conducting cover is rotatably sleeved on the bottom of the laser. The present invention provides a laser cutting machine with a liquid cooling structure and a method of using the same, wherein a motor transmission structure synchronously drives the liquid cooling and air cooling components to operate, and while the liquid cooling cycle cools down, the airflow can assist in cooling down and cleaning the surface of the plate, and the size of the air cooling nozzle of the device can be automatically adjusted to perform large-scale cooling of the laser emission port and the cutting part of the metal plate, thereby reducing the risk of high-temperature deformation of the cutting part, and at the same time, the cooling structure of the device can reciprocate within a certain angle to improve the uniformity of heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, and in particular to a laser cutting machine with a liquid cooling structure and a use method thereof. Background Art

[0002] Laser cutting machine is a kind of equipment that uses the high temperature of high-energy laser to cut metal materials. During the operation of the cutting machine, the laser generator will generate a high temperature. In order to increase the service life of the laser generator, it is necessary to cool the laser generator of the cutting machine through a cooling device. However, there are still some problems with the existing laser cutting machine:

[0003] For example, a water-cooled laser cutting head with publication number CN114619156B that is easy to disassemble belongs to the technical field of laser cutting equipment. It includes a base and a laser head; a water tank is fixed on the base above the laser head, and an annular support plate is fixed under the water tank; a hinge seat evenly distributed around the axis of the base is fixed under the annular support plate; the upper end of the heat sink is hinged on the hinge seat, and the heat sink can rotate along the hinge seat toward the side away from the laser head; a water channel is set in the heat sink;

[0004] Publication number CN102476245B is a cutting head for a laser cutting machine, wherein a fixing sleeve is fixed to a cutting head connector through a connecting nut, the fixing sleeve is connected to a protective sheet mounting seat, the protective sheet mounting seat is fixed through a connecting nut, a positioning pin is embedded on the protective sheet mounting seat, a protective sheet is installed in the protective sheet mounting seat, an air nozzle is installed below the protective sheet mounting seat, and a moving ring is connected to a quick-connect connector and an adjusting screw;

[0005] The above device has a single cooling structure and a poor cooling effect. During use, it can only cool the laser generator but not the cut metal sheet, thereby increasing the risk of deformation of the cut part of the metal sheet due to high temperature.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original laser cutting machine. Summary of the invention

[0007] The object of the present invention is to provide a laser cutting machine with a liquid cooling structure and a method of use, so as to solve the problem that the existing laser cutting machine proposed in the above background technology has a single cooling structure and a poor cooling effect of the device, and during use, it can only cool the laser generator but cannot cool the cut metal sheet, thereby increasing the risk of deformation of the cut part of the metal sheet due to high temperature.

[0008] To achieve the above object, the present invention provides the following technical solution: a laser cutting machine with a liquid cooling structure and a method of using the same, comprising:

[0009] A machine tool, wherein a laser is fixedly mounted on a movable gantry at the top, a water tank is fixedly sleeved on the top side wall of the laser, and a heat-conducting cover is arranged directly below the water tank, and the heat-conducting cover is rotatably sleeved on the bottom of the laser;

[0010] Also includes:

[0011] A pressure cylinder, which is vertically fixedly connected to the outer wall of the heat-conducting cover, the lower port of the first one-way valve pipe and the upper port of the second one-way valve pipe are fixedly connected on both sides of the bottom of the pressure cylinder, and the upper port of the first one-way valve pipe is fixedly connected to the lower part of the side wall of the water tank, and the lower port of the second one-way valve pipe is fixedly connected to the side wall of the main water pipe, and the second one-way valve pipe is fixedly penetrated through the heat-conducting cover, the main water pipe is sleeved on the outer side of the lower part of the laser to play a heat dissipation role, and the top of the main water pipe is fixedly connected with branch pipes distributed at equal angles, the main water pipe and the branch pipe are fixedly embedded in the interior of the heat-conducting cover, and the end of the branch pipe away from the main water pipe is fixedly connected to the bottom of the water tank;

[0012] An outer ring tube, which is fixedly sleeved on the bottom side wall of the heat-conducting cover, the inner side of the outer ring tube is fixedly connected with four intake pipes distributed at equal angles, and the ends of the intake pipes away from the outer ring tube are fixedly connected to the corresponding ends of the ventilation cylinders, the intake pipes are fixedly penetrated through the side wall of the heat-conducting cover, a sealing sleeve is rotatably fitted between the outer wall of the ventilation cylinder and the inner wall of the fixed cylinder, and the sealing sleeves are distributed at equal intervals along the axis of the ventilation cylinder, the bottom of the sealing sleeve is fixedly connected with an injection mechanism, the injection mechanism includes an airflow nozzle, the upper end of the airflow nozzle is fixedly installed on the bottom of the sealing sleeve, and the upper port of the airflow nozzle is connected to the The inner wall of the sealing sleeve is arranged flush, and the upper end of the air flow nozzle is arranged toward the arc-shaped through-hole at the bottom of the ventilation cylinder to form a ventilation structure. A rotating mechanism is coaxially rotated and penetrated at the center of the ventilation cylinder. The rotating mechanism includes a first gear, and a second gear is coaxially arranged on the side of the first gear. The first gear and the second gear are both rotatably fitted on the inner wall of the heat-conducting cover. An inner core rod is coaxially fixed and penetrated on the first gear, and an outer sleeve is rotatably sleeved on the outer wall of the inner core rod, and the end of the outer sleeve is coaxially fixed and penetrates the second gear. The outer sleeve is rotatably embedded in the inner wall of the heat-conducting cover.

[0013] Preferably, a plug body of an extrusion plug rod is fitted on the top of the inner wall of the pressure cylinder, and the rod body of the extrusion plug rod slides through the top of the pressure cylinder, and the top end of the rod body of the extrusion plug rod is fixedly connected to the bottom surface of the lifting frame, and the lifting frame is slidably embedded in the through groove on the side wall of the heat conductive cover, so that the lifting frame can drive the extrusion plug rod to move.

[0014] Preferably, the top of the lifting frame is rotatably connected to the lower end of the transmission plate, and the upper end of the transmission plate is rotatably installed at the edge of the side wall of the transmission gear, and the side of the transmission gear away from the transmission plate is rotatably embedded in the outer wall of the heat-conductive cover, and the side of the transmission gear is meshed with a power gear, and the power gear is coaxially fixedly connected to the main shaft of the motor, so that the power gear can drive the transmission plate to move through the transmission gear.

[0015] Preferably, an air collecting pipe is provided on the side of the transmission plate away from the transmission gear, and fan blades are provided in the air inlet at the top of the air collecting pipe, and the fan blades are coaxially fixedly mounted on the main shaft of the motor, and the main shaft of the motor rotates through the top of the air collecting pipe, and the lower port of the air collecting pipe is fixedly connected to the side wall of the outer ring pipe, so that the fan blades can drive outside air into the air collecting pipe.

[0016] Preferably, both ends of the ventilation cylinder and the fixed cylinder are fixedly connected to the inner wall of the heat-conducting cover, and an outer sleeve is rotatably provided on the end of the ventilation cylinder away from the air inlet pipe, a movable ring is provided above the fixed cylinder, and the movable ring is coaxially slidably installed on the inner wall of the heat-conducting cover, and the top of the movable ring is fixedly connected to the end of the lifting frame away from the extrusion plug rod, a horizontal thrust column is fixedly installed on the inner wall of the movable ring, and the thrust column slides through the slide groove setting on the inner side of the heat-conducting cover, and the end of the thrust column away from the movable ring is fit-fitted in the inclined groove opened on the side wall of the laser, and the movable ring and the side wall of the laser are coaxially arranged, so that the movable ring can drive the thrust column to move.

[0017] Preferably, the first gear and the second gear are arranged between the two gear plates at the bottom of the gear plate frame, and the two gear plates of the gear plate frame are distributed to form a transmission relationship with the first gear and the second gear, and the gear plate frame is slidably embedded on the inner wall of the heat conductive cover, the top of the gear plate frame is fixedly connected to the bottom surface of the moving ring, and the gear plate frame is distributed at equal angles on the moving ring, so that the gear plate frame can drive the first gear and the second gear to rotate respectively.

[0018] Preferably, a symmetrically distributed second connecting plate is fixedly connected to the side wall of the inner core rod, and the bottom end of the second connecting plate is fitted in an arc groove on the side wall of the outer sleeve, and a symmetrically distributed first connecting plate is fixedly connected to the outer wall of the outer sleeve, the first connecting plate and the second connecting plate are staggered, and the axes of the first connecting plate and the second connecting plate are perpendicular to the axis of the inner core rod, the top ends of the first connecting plate and the second connecting plate are respectively fixedly connected to the corresponding inner walls of the sealing sleeve, and the first connecting plate and the second connecting plate are fitted in a sliding groove that runs through the top of the ventilator, so that the first connecting plate and the second connecting plate can drive the corresponding sealing sleeve to rotate.

[0019] Preferably, the airflow nozzle is arranged at an angle, and the upper side wall of the airflow nozzle is rotatably connected to the fixed cylinder, the lower port of the airflow nozzle faces the bottom of the heat-conducting cover, and an adjustment plate is rotatably connected to the inner wall of the lower port of the airflow nozzle, the fixed end of the telescopic rod is fixedly connected to the outer wall of the upper end of the adjustment plate, and the lower end of the telescopic rod is rotatably connected to the movable end of the telescopic rod, so that the telescopic rod can drive the adjustment plate to rotate.

[0020] Preferably, one end of the moving rod away from the telescopic rod is inserted on the inner wall of the airflow nozzle to form a sliding limiting structure, and a force-bearing rod is fixedly connected to the side wall of the upper end of the moving rod, and the force-bearing rod slides through the slide groove setting on the side wall of the airflow nozzle, and the end of the force-bearing rod away from the moving rod is fitly arranged in a guide groove opened on the inner wall of the fixed tube, and the end of the guide groove away from the force-bearing rod is closer to the axis of the fixed tube, so that the force-bearing rod can drive the moving rod to move.

[0021] The use of laser cutting machine is as follows:

[0022] S1: When the laser starts to run, the motor starts synchronously, and the motor drives the fan blades and the power gear to rotate synchronously. Under the action of the fan blades, the outside air continuously enters the air collecting pipe and the outer ring pipe to generate cooling airflow, which assists in cooling the heat conductive cover. The airflow in the outer ring pipe will enter the corresponding air cylinder through the air intake pipe. At the same time, the power gear will drive the transmission gear to rotate synchronously, and the transmission gear will drive the lifting frame to reciprocate through the eccentrically connected transmission plate;

[0023] S2: The moving lifting frame will drive the fixedly connected moving ring and the extrusion plug rod to move synchronously, so that the plug of the extrusion plug rod will move synchronously in the pressure cylinder, so that the water in the pressure cylinder can flow into the main water pipe through the second one-way valve pipe, and the water in the main water pipe will flow back into the water tank through the branch pipe. The branch pipe is a deformable hose. The water in the water tank will flow into the pressure cylinder through the first one-way valve pipe for replenishment, thereby realizing the circulation of cooling water. The main water pipe and the branch pipe are used to cool the laser. At the same time, the moving ring will drive the thrust column to move back and forth synchronously. Since the laser is fixed, when the thrust column moves in the inclined groove on the laser, the thrust column will drive the heat conductive cover to rotate back and forth synchronously, so that the heat conductive cover can change the position of the main water pipe and the branch pipe, thereby improving the uniformity of heat dissipation;

[0024] S3: The reciprocating moving ring will drive the toothed plate frame to move synchronously. At this time, the toothed plates on both sides of the toothed plate frame respectively drive the corresponding first gear and the second gear to reciprocate. The first gear drives the inner core rod and the second connecting plate to rotate, and the second gear drives the outer sleeve and the first connecting plate to rotate. In this process, the first connecting plate and the second connecting plate drive the corresponding sealing sleeve to rotate;

[0025] S4: The rotating sealing sleeve will drive the airflow nozzle connected to the bottom to swing back and forth. During this process, the airflow in the ventilator will be ejected through the airflow nozzle, and the moving airflow nozzle will drive the moving rod to move synchronously. Since the force-bearing rod on the moving rod is fitted in the guide groove, the force-bearing rod will drive the moving rod to move axially, and the moving rod will pull the rotating telescopic rod to move synchronously. At this time, the telescopic rod will drive the adjustment plate to rotate synchronously. The nozzle size of the airflow nozzle is adjusted by the adjustment plate, so that the nozzle is the largest when the airflow nozzle faces the laser emission port position, and the laser emission port and the steel plate cutting position are cooled by a large area of ​​airflow. When the airflow nozzle is away from the laser emission port position, the nozzle is the smallest. At this time, the ejected airflow pressure will be increased accordingly to increase the effective jet area of ​​the airflow nozzle, so that the airflow can cool the cut steel plate in a larger range, reduce the risk of deformation of the steel plate cutting part due to high temperature, and use the cooling airflow to clean the debris on the surface of the steel plate.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a laser cutting machine with a liquid cooling structure and a method of using the same, wherein the motor transmission structure synchronously drives the liquid cooling and air cooling components to operate, and while the liquid cooling cycle cools down, the air flow can assist in cooling down and cleaning the surface of the plate, and the size of the air cooling nozzle of the device can be automatically adjusted to cool the laser emission port and the cutting part of the metal plate in a large range, thereby reducing the risk of high temperature deformation of the cutting part, and at the same time, the cooling structure of the device can reciprocate within a certain angle to improve the uniformity of heat dissipation, and the specific contents are as follows:

[0027] 1. The lower port of the first one-way valve tube and the upper port of the second one-way valve tube are fixedly connected on both sides of the bottom of the pressure cylinder. The upper port of the first one-way valve tube is fixedly connected to the lower part of the side wall of the water tank, and the lower port of the second one-way valve tube is fixedly connected to the side wall of the main water pipe. The main water pipe is sleeved on the outer side of the lower part of the laser to play a heat dissipation role. The top of the main water pipe is fixedly connected with branch pipes distributed at equal angles. The main water pipe and the branch pipe are fixedly embedded in the inside of the heat conductive cover. One end of the branch pipe away from the main water pipe is fixedly connected to the bottom of the water tank. When the extrusion plug rod moves in the pressure cylinder, the water in the pressure cylinder flows into the main water pipe through the second one-way valve tube, and the main water pipe The water in the water pipe will flow into the water tank through the branch pipe, and the water in the water tank will re-enter the pressure cylinder through the first one-way valve pipe to realize the circulation of cooling water. At the same time, the top of the moving ring is fixedly connected to the end of the lifting frame away from the extrusion plug rod. A horizontal thrust column is fixedly installed on the inner wall of the moving ring. The thrust column slides through the slide groove setting on the inner side of the heat conductive cover. The end of the thrust column away from the moving ring is fitted in the inclined groove opened on the side wall of the laser. When the moving ring drives the thrust column to move, the thrust column will move in the inclined groove, so that the thrust column can drive the heat conductive cover to rotate back and forth synchronously, thereby changing the position of the main water pipe and the branch pipe;

[0028] 2. An adjusting plate is rotatably arranged on the inner wall of the lower port of the airflow nozzle, and the outer wall of the upper end of the adjusting plate is fixedly connected to the fixed end of the telescopic rod, and the lower end of the moving rod is rotatably connected to the movable end of the telescopic rod, and the end of the moving rod away from the telescopic rod is inserted on the inner wall of the airflow nozzle to form a sliding limit structure, and a force-bearing rod is fixedly connected to the side wall of the upper end of the moving rod, and the force-bearing rod slides through the slide groove arrangement on the side wall of the airflow nozzle, and the end of the force-bearing rod away from the moving rod is fitted in the guide groove opened on the inner wall of the fixed cylinder. When the airflow nozzle rotates, the airflow nozzle will drive the moving rod to move synchronously, so that the force-bearing rod on the moving rod can move in the guide groove. In this process, the moving rod will move synchronously, and the moving rod will drive the telescopic rod connected to the bottom end to move synchronously, so that the telescopic rod can drive the adjusting plate to rotate, and the adjusting plate is used to control the nozzle size of the airflow nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the water tank installation structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the gas collecting pipe installation structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the outer ring pipe installation structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the intake pipe installation structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the pressure cylinder installation structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the installation structure of the toothed plate frame of the present invention;

[0036] Figure 8 This is a schematic diagram of the installation structure of the fixed cylinder of the present invention;

[0037] Fig. 9 This is a schematic diagram of the installation structure of the ventilator of the present invention;

[0038] Fig.10 This is a schematic diagram of the inner core rod installation structure of the present invention;

[0039] Fig.11 This is a schematic diagram of the sealing sleeve installation structure of the present invention;

[0040] Fig.12 This is a schematic diagram of the installation structure of the mobile rod of the present invention;

[0041] Fig.13 It is a schematic diagram of the installation structure of the force-bearing rod of the present invention.

[0042] In the figure: 1, machine tool; 2, laser; 3, water tank; 4, heat conductive cover; 5, branch pipe; 6, main water pipe; 7, first one-way valve pipe; 8, pressure cylinder; 9, second one-way valve pipe; 10, extrusion plug rod; 11, lifting frame; 12, transmission plate; 13, transmission gear; 14, power gear; 15, motor; 16, moving ring; 17, gear plate frame; 18, rotating mechanism; 1801, first gear; 1802, inner core rod; 1803, second gear Wheel; 1804, outer sleeve; 1805, first connecting plate; 1806, second connecting plate; 19, fixed sleeve; 20, sealing sleeve; 21, ventilation sleeve; 22, jet mechanism; 2201, air flow nozzle; 2202, adjustment plate; 2203, telescopic rod; 2204, moving rod; 2205, force-bearing rod; 23, guide groove; 24, air inlet pipe; 25, outer ring pipe; 26, air collecting pipe; 27, fan blade; 28, thrust column; 29, inclined groove. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 13 The present invention provides a technical solution: a laser cutting machine with a liquid cooling structure and a method of using the same, comprising:

[0045] A machine tool 1, a laser 2 is fixedly mounted on a movable gantry at the top of the machine tool 1, a water tank 3 is fixedly sleeved on the top side wall of the laser 2, and a heat-conducting cover 4 is arranged directly below the water tank 3, and the heat-conducting cover 4 is rotatably sleeved on the bottom of the laser 2;

[0046] Also includes:

[0047] The pressure cylinder 8 is vertically fixedly connected to the outer wall of the heat-conducting cover 4, and the lower port of the first one-way valve tube 7 and the upper port of the second one-way valve tube 9 are fixedly connected to the two sides of the bottom of the pressure cylinder 8, and the upper port of the first one-way valve tube 7 is fixedly connected to the lower part of the side wall of the water tank 3, and the lower port of the second one-way valve tube 9 is fixedly connected to the side wall of the main water pipe 6, and the second one-way valve tube 9 is fixedly penetrated through the heat-conducting cover 4, the main water pipe 6 is sleeved on the outer side of the lower part of the laser 2 to play a heat dissipation role, and the top of the main water pipe 6 is fixedly connected to the branch pipes 5 distributed at equal angles, the main water pipe 6 and the branch pipes 5 are fixedly embedded in the interior of the heat-conducting cover 4, and the end of the branch pipe 5 away from the main water pipe 6 is fixedly connected to the bottom of the water tank 3;

[0048] The outer ring tube 25 is fixedly sleeved on the bottom side wall of the heat-conducting cover 4. Four intake pipes 24 distributed at equal angles are fixedly connected to the inner side of the outer ring tube 25, and the ends of the intake pipes 24 away from the outer ring tube 25 are fixedly connected to the corresponding ends of the ventilation cylinder 21. The intake pipes 24 are fixedly penetrated through the side wall of the heat-conducting cover 4. A sealing sleeve 20 is rotatably fitted between the outer wall of the ventilation cylinder 21 and the inner wall of the fixed cylinder 19, and the sealing sleeves 20 are distributed at equal intervals along the axis of the ventilation cylinder 21. The bottom of the sealing sleeve 20 is fixedly connected to an injection mechanism 22, and the injection mechanism 22 includes an airflow nozzle 2201. The upper end of the airflow nozzle 2201 is fixedly installed on the bottom of the sealing sleeve 20, and the upper port of the airflow nozzle 2201 is flush with the inner wall of the sealing sleeve 20. The upper end of the air flow nozzle 2201 is arranged toward the arc-shaped through-port at the bottom of the ventilation cylinder 21 to form a ventilation structure. A rotating mechanism 18 is coaxially rotated and penetrated at the center of the ventilation cylinder 21. The rotating mechanism 18 includes a first gear 1801. A second gear 1803 is coaxially arranged on the side of the first gear 1801. The first gear 1801 and the second gear 1803 are both rotatably fitted on the inner wall of the heat-conducting cover 4. An inner core rod 1802 is coaxially fixed and penetrated on the first gear 1801. An outer sleeve 1804 is rotatably sleeved on the outer wall of the inner core rod 1802. The end of the outer sleeve 1804 is coaxially fixed and penetrates the second gear 1803. The outer sleeve 1804 is rotatably embedded in the inner wall of the heat-conducting cover 4.

[0049] An air collecting pipe 26 is arranged on the side of the transmission plate 12 away from the transmission gear 13, and a fan blade 27 is arranged in the air inlet at the top of the air collecting pipe 26, and the fan blade 27 is coaxially fixedly installed on the main shaft of the motor 15, and the main shaft of the motor 15 rotates through the top of the air collecting pipe 26, and the lower end of the air collecting pipe 26 is fixedly connected to the side wall of the outer ring pipe 25. When the motor 15 drives the fan blade 27 to rotate, the outside air can enter the air collecting pipe 26 to generate airflow, and the top of the lifting frame 11 is rotatably connected to the lower end of the transmission plate 12, and the upper end of the transmission plate 12 is rotatably installed on the transmission gear 13. The side wall edge of the pressure cylinder 8 is provided with a transmission gear 13 which is rotatably embedded on the outer wall of the heat-conducting cover 4 away from the transmission plate 12. The side of the transmission gear 13 is meshed with a power gear 14, and the power gear 14 is coaxially fixedly connected to the main shaft of the motor 15, so that the power gear 14 can drive the transmission gear 13 to rotate, and the transmission gear 13 will drive the lifting frame 11 to move through the transmission plate 12, and the top of the inner wall of the pressure cylinder 8 is fitted with a plug body of the extrusion plug rod 10, and the rod body of the extrusion plug rod 10 slides through the top of the pressure cylinder 8, and the top of the rod body of the extrusion plug rod 10 is fixed. The lifting frame 11 is fixedly connected to the bottom surface of the lifting frame 11, and the lifting frame 11 is slidably embedded in the through groove on the side wall of the heat-conducting cover 4. At this time, the lifting frame 11 will drive the extrusion plug rod 10 to move synchronously, so that the extrusion plug rod 10 can discharge the water in the pressure cylinder 8 to realize the cooling water circulation. Since both ends of the vent cylinder 21 and the fixed cylinder 19 are fixedly connected to the inner wall of the heat-conducting cover 4, and the end of the vent cylinder 21 away from the air inlet pipe 24 is rotated and penetrated with an outer sleeve 1804, a moving ring 16 is arranged above the fixed cylinder 19, and the moving ring 16 is coaxially slidably installed on the inner wall of the heat-conducting cover 4, and the moving ring The top of the moving ring 16 is fixedly connected to the end of the lifting frame 11 away from the extrusion plug rod 10, and a horizontal thrust column 28 is fixedly installed on the inner wall of the moving ring 16, and the thrust column 28 slides through the slide groove setting on the inner side of the heat-conducting cover 4, and the end of the thrust column 28 away from the moving ring 16 is fitted in the inclined groove 29 opened on the side wall of the laser 2, and the moving ring 16 and the side wall of the laser 2 are coaxially arranged. When the moving ring 16 moves, the moving ring 16 will drive the thrust column 28 to move synchronously, so that the thrust column 28 can drive the heat-conducting cover 4 to reciprocate within a certain angle under the action of the inclined groove 29.

[0050] The first gear 1801 and the second gear 1803 are arranged between the two gear plates at the bottom of the gear plate frame 17, and the two gear plates of the gear plate frame 17 are distributed to form a transmission relationship with the first gear 1801 and the second gear 1803, and the gear plate frame 17 is slidably embedded on the inner wall of the heat-conducting cover 4, and the top of the gear plate frame 17 is fixedly connected to the bottom surface of the moving ring 16, and the gear plate frame 17 is distributed at equal angles on the moving ring 16, so that the gear plate frame 17 can drive the corresponding first gear 1801 and the second gear 1803 to rotate, and the first gear 1801 will drive the fixedly connected inner core rod 1802 to rotate. Since the side wall of the inner core rod 1802 is fixedly connected with a symmetrically distributed second connecting plate 1806, and the second The bottom end of the connecting plate 1806 is fitted in the arc groove on the side wall of the outer sleeve 1804, and a symmetrically distributed first connecting plate 1805 is fixedly connected to the outer wall of the outer sleeve 1804. The first connecting plate 1805 and the second connecting plate 1806 are staggered, and the axes of the first connecting plate 1805 and the second connecting plate 1806 are perpendicularly intersected with the axis of the inner core rod 1802. The top ends of the first connecting plate 1805 and the second connecting plate 1806 are respectively fixedly connected to the corresponding inner walls of the sealing sleeve 20, and the first connecting plate 1805 and the second connecting plate 1806 are fitted in the sliding groove that runs through the top of the ventilator 21. At this time, the inner core rod 1802 will drive the corresponding sealing sleeve 20 through the second connecting plate 1806. The sleeve 20 rotates, and the end of the moving rod 2204 away from the telescopic rod 2203 is inserted into the inner wall of the airflow nozzle 2201 to form a sliding limit structure, and the upper end side wall of the moving rod 2204 is fixedly connected with a force rod 2205, and the force rod 2205 slides through the slide groove setting on the side wall of the airflow nozzle 2201, and the end of the force rod 2205 away from the moving rod 2204 is fitted in the guide groove 23 opened on the inner wall of the fixed cylinder 19, and the end of the guide groove 23 away from the force rod 2205 is closer to the axis of the fixed cylinder 19. When the sealing sleeve 20 drives the airflow nozzle 2201 to move, the airflow nozzle 2201 will drive the corresponding force rod 2205 to move through the moving rod 2204. The force-bearing rod 2205 can move in the guide groove 23. At this time, the force-bearing rod 2205 will drive the moving rod 2204 to move axially, and the airflow nozzle 2201 is inclined, and the upper side wall of the airflow nozzle 2201 is rotated and fitted on the fixed cylinder 19, the lower port of the airflow nozzle 2201 faces the bottom of the heat conduction cover 4, and an adjustment plate 2202 is rotatably fitted on the inner wall of the lower port of the airflow nozzle 2201, the fixed end of the telescopic rod 2203 is fixedly connected to the outer wall of the upper end of the adjustment plate 2202, and the lower end of the moving rod 2204 is rotatably connected to the moving end of the telescopic rod 2203, at this time the moving rod 2204 will drive the adjustment plate 2202 to move synchronously through the telescopic rod 2203.

[0051] The use of laser cutting machine is as follows:

[0052] S1: When the laser 2 starts to run, the motor 15 starts synchronously, and the motor 15 drives the fan blades 27 and the power gear 14 to rotate synchronously. Under the action of the fan blades 27, the outside air continuously enters the air collecting pipe 26 and the outer ring pipe 25 to generate cooling airflow, and assists in cooling the heat conductive cover 4. The airflow in the outer ring pipe 25 will enter the corresponding ventilator 21 through the air inlet pipe 24. At the same time, the power gear 14 will drive the transmission gear 13 to rotate synchronously, and the transmission gear 13 will drive the lifting frame 11 to reciprocate through the eccentrically connected transmission plate 12;

[0053] S2: The moving lifting frame 11 will drive the fixedly connected moving ring 16 and the extrusion plug rod 10 to move synchronously, so that the plug of the extrusion plug rod 10 will move synchronously in the pressure cylinder 8, so that the water in the pressure cylinder 8 can flow into the main water pipe 6 through the second one-way valve pipe 9, and the water in the main water pipe 6 will flow back into the water tank 3 through the branch pipe 5. The branch pipe 5 is a deformable hose. The water in the water tank 3 will flow into the pressure cylinder 8 through the first one-way valve pipe 7 for replenishment, thereby realizing the circulation of cooling water. The main water pipe 6 and the branch pipe 5 are used to cool the laser 2. At the same time, the moving ring 16 will drive the thrust column 28 to move back and forth synchronously. Since the laser 2 is fixedly arranged, when the thrust column 28 moves in the inclined groove 29 on the laser 2, the thrust column 28 will drive the heat-conducting cover 4 to rotate back and forth synchronously, so that the heat-conducting cover 4 can change the positions of the main water pipe 6 and the branch pipe 5, thereby improving the uniformity of heat dissipation;

[0054] S3: The reciprocating moving ring 16 will drive the toothed plate frame 17 to move synchronously. At this time, the toothed plates on both sides of the toothed plate frame 17 will drive the corresponding first gear 1801 and the second gear 1803 to reciprocate respectively. The first gear 1801 will drive the inner core rod 1802 and the second connecting plate 1806 to rotate, and the second gear 1803 will drive the outer sleeve 1804 and the first connecting plate 1805 to rotate. In this process, the first connecting plate 1805 and the second connecting plate 1806 will drive the corresponding sealing sleeve 20 to rotate;

[0055] S4: The rotating sealing sleeve 20 will drive the airflow nozzle 2201 connected to the bottom to swing back and forth. During this process, the airflow in the ventilator 21 will be ejected through the airflow nozzle 2201, and the moving airflow nozzle 2201 will drive the moving rod 2204 to move synchronously. Since the force-bearing rod 2205 on the moving rod 2204 is fitted in the guide groove 23, the force-bearing rod 2205 will drive the moving rod 2204 to move axially, and the moving rod 2204 will pull the rotating telescopic rod 2203 to move synchronously. At this time, the telescopic rod 2203 will drive the adjusting plate 2202 to rotate synchronously. The adjustment plate 2202 adjusts the nozzle size of the airflow nozzle 2201 so that the nozzle is largest when the airflow nozzle 2201 is facing the emission port of the laser 2, and the large-area airflow is used to cool the emission port of the laser 2 and the steel plate cutting position. When the airflow nozzle 2201 is away from the emission port of the laser 2, the nozzle is smallest. At this time, the pressure of the ejected airflow will be increased accordingly to increase the effective jet area of ​​the airflow nozzle 2201, so that the airflow can cool the cut steel plate in a larger range, reduce the risk of deformation of the steel plate cutting part due to high temperature, and use the cooling airflow to clean the debris on the surface of the steel plate.

[0056] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cutting machine with a liquid cooling structure, comprising: A machine tool (1), wherein a laser (2) is fixedly mounted on a movable gantry at the top of the machine tool (1), a water tank (3) is fixedly sleeved on the top side wall of the laser (2), and a heat-conducting cover (4) is arranged directly below the water tank (3), and the heat-conducting cover (4) is rotatably sleeved on the bottom of the laser (2); It is characterized by further comprising: A pressure cylinder (8) which is vertically fixedly connected to the outer wall of the heat-conducting cover (4); the lower port of a first one-way valve tube (7) and the upper port of a second one-way valve tube (9) are fixedly connected to the two sides of the bottom of the pressure cylinder (8); the upper port of the first one-way valve tube (7) is fixedly connected to the lower part of the side wall of the water tank (3); the lower port of the second one-way valve tube (9) is fixedly connected to the side wall of the main water pipe (6); the second one-way valve tube (9) is fixedly penetrated through the heat-conducting cover (4); the main water pipe (6) is sleeved on the outer side of the lower part of the laser (2) to play a heat dissipation role; the top of the main water pipe (6) is fixedly connected to branch pipes (5) distributed at equal angles; the main water pipe (6) and the branch pipes (5) are fixedly embedded in the interior of the heat-conducting cover (4); and the end of the branch pipe (5) away from the main water pipe (6) is fixedly connected to the bottom of the water tank (3); An outer ring tube (25) is fixedly sleeved on the bottom side wall of the heat-conducting cover (4); the inner side of the outer ring tube (25) is fixedly connected to four intake pipes (24) distributed at equal angles, and the ends of the intake pipes (24) away from the outer ring tube (25) are fixedly connected to the corresponding ends of the ventilation cylinders (21); the intake pipes (24) are fixedly arranged to penetrate the side wall of the heat-conducting cover (4); a sealing sleeve (20) is rotatably fitted between the outer wall of the ventilation cylinder (21) and the inner wall of the fixed cylinder (19); the sealing sleeves (20) are distributed at equal intervals along the axis of the ventilation cylinder (21); the bottom of the sealing sleeve (20) is fixedly connected to an injection mechanism (22); the injection mechanism (22) comprises an airflow nozzle (2201); the upper end of the airflow nozzle (2201) is fixedly installed through the bottom of the sealing sleeve (20); and the upper end of the airflow nozzle (2201) is connected to the sealing sleeve (20). The inner wall of the heat-conducting cover (4) is arranged flush with the inner wall of the heat-conducting cover (4), and the upper end of the air flow nozzle (2201) is arranged toward the arc-shaped through-hole at the bottom of the ventilation cylinder (21) to form a ventilation structure. A rotating mechanism (18) is coaxially rotatably installed at the center of the ventilation cylinder (21). The rotating mechanism (18) comprises a first gear (1801), a second gear (1803) is coaxially arranged on the side of the first gear (1801), and the first gear (1801) and the second gear (1803) are both rotatably installed on the inner wall of the heat-conducting cover (4). An inner core rod (1802) is coaxially fixed and installed through the first gear (1801), and an outer sleeve (1804) is rotatably sleeved on the outer wall of the inner core rod (1802), and the end of the outer sleeve (1804) is coaxially fixed and installed through the second gear (1803), and the outer sleeve (1804) is rotatably embedded in the inner wall of the heat-conducting cover (4).

2. The laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: The top of the inner wall of the pressure cylinder (8) is fitted with a plug body of an extrusion plug rod (10), and the rod body of the extrusion plug rod (10) slides through the top of the pressure cylinder (8), and the top end of the rod body of the extrusion plug rod (10) is fixedly connected to the bottom surface of a lifting frame (11), and the lifting frame (11) is slidably embedded in a through groove on the side wall of the heat conductive cover (4).

3. The laser cutting machine with a liquid cooling structure according to claim 2, characterized in that: The top of the lifting frame (11) is rotatably connected to the lower end of a transmission plate (12), and the upper end of the transmission plate (12) is rotatably mounted on the edge of the side wall of a transmission gear (13), and the side of the transmission gear (13) away from the transmission plate (12) is rotatably embedded in the outer wall of the heat-conducting cover (4), and a power gear (14) is meshedly arranged on the side of the transmission gear (13), and the power gear (14) is coaxially fixedly connected to the main shaft of the motor (15).

4. The laser cutting machine with a liquid cooling structure according to claim 3, characterized in that: An air collecting pipe (26) is arranged on a side of the transmission plate (12) away from the transmission gear (13), and a fan blade (27) is arranged in an air inlet at the top of the air collecting pipe (26), and the fan blade (27) is coaxially fixedly mounted on the main shaft of the motor (15), and the main shaft of the motor (15) rotates and penetrates the top of the air collecting pipe (26), and the lower end of the air collecting pipe (26) is fixedly connected to the side wall of the outer ring pipe (25).

5. The laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: Both ends of the ventilation cylinder (21) and the fixed cylinder (19) are fixedly connected to the inner wall of the heat-conducting cover (4), and an outer sleeve (1804) is rotatably provided on one end of the ventilation cylinder (21) away from the air inlet pipe (24), a movable ring (16) is provided above the fixed cylinder (19), and the movable ring (16) is coaxially slidably installed on the inner wall of the heat-conducting cover (4), and the top of the movable ring (16) is fixedly connected to one end of the lifting frame (11) away from the extrusion plug rod (10), a horizontal thrust column (28) is fixedly installed on the inner wall of the movable ring (16), and the thrust column (28) slides through the slide groove on the inner side of the heat-conducting cover (4), and the end of the thrust column (28) away from the movable ring (16) is fitted in an inclined groove (29) provided on the side wall of the laser (2), and the movable ring (16) and the side wall of the laser (2) are coaxially arranged.

6. The laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: The first gear (1801) and the second gear (1803) are arranged between the two gear plates at the bottom of the gear plate frame (17), and the two gear plates of the gear plate frame (17) are distributed to form a transmission relationship with the first gear (1801) and the second gear (1803), and the gear plate frame (17) is slidably embedded on the inner wall of the heat conductive cover (4), the top of the gear plate frame (17) is fixedly connected to the bottom surface of the moving ring (16), and the gear plate frame (17) is distributed at equal angles on the moving ring (16).

7. The laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: A symmetrically distributed second connecting plate (1806) is fixedly connected to the side wall of the inner core rod (1802), and the bottom end of the second connecting plate (1806) is fitted in an arc groove on the side wall of the outer sleeve (1804); a symmetrically distributed first connecting plate (1805) is fixedly connected to the outer wall of the outer sleeve (1804); the first connecting plate (1805) and the second connecting plate (1806) are staggered, and the axes of the first connecting plate (1805) and the second connecting plate (1806) are perpendicular to the axis of the inner core rod (1802); the top ends of the first connecting plate (1805) and the second connecting plate (1806) are respectively fixedly connected to the inner walls of the corresponding sealing sleeve (20), and the first connecting plate (1805) and the second connecting plate (1806) are fitted in a sliding groove that runs through the top of the ventilator (21).

8. The laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: The airflow nozzle (2201) is arranged obliquely, and the upper side wall of the airflow nozzle (2201) is rotatably connected to the fixed cylinder (19), the lower port of the airflow nozzle (2201) faces the bottom of the heat-conducting cover (4), and an adjustment plate (2202) is rotatably connected to the inner wall of the lower port of the airflow nozzle (2201), the fixed end of the telescopic rod (2203) is fixedly connected to the outer wall of the upper end of the adjustment plate (2202), and the lower end of the mobile rod (2204) is rotatably connected to the mobile end of the telescopic rod (2203).

9. The laser cutting machine with a liquid cooling structure according to claim 8, characterized in that: One end of the moving rod (2204) away from the telescopic rod (2203) is inserted into the inner wall of the airflow nozzle (2201) to form a sliding limit structure, and a force-bearing rod (2205) is fixedly connected to the upper side wall of the moving rod (2204), and the force-bearing rod (2205) slides through the slide groove on the side wall of the airflow nozzle (2201), and the end of the force-bearing rod (2205) away from the moving rod (2204) is fitted in a guide groove (23) provided on the inner wall of the fixed cylinder (19), and the end of the guide groove (23) away from the force-bearing rod (2205) is closer to the axis of the fixed cylinder (19).

10. The method for using a laser cutting machine with a liquid cooling structure according to claim 1, characterized in that: The use of laser cutting machine is as follows: S1: When the laser (2) starts to operate, the motor (15) is started synchronously, and the motor (15) drives the fan blades (27) and the power gear (14) to rotate synchronously. Under the action of the fan blades (27), the outside air continuously enters the air collecting pipe (26) and the outer ring pipe (25) to generate cooling airflow, and assists in cooling the heat conductive cover (4). The airflow in the outer ring pipe (25) enters the corresponding ventilation cylinder (21) through the air inlet pipe (24). At the same time, the power gear (14) drives the transmission gear (13) to rotate synchronously, and the transmission gear (13) drives the lifting frame (11) to reciprocate through the eccentrically connected transmission plate (12); S2: The moving lifting frame (11) drives the fixedly connected moving ring (16) and the extrusion plug rod (10) to move synchronously, so that the plug body of the extrusion plug rod (10) moves synchronously in the pressure cylinder (8), so that the water in the pressure cylinder (8) can flow into the main water pipe (6) through the second one-way valve pipe (9), and the water in the main water pipe (6) will flow back into the water tank (3) through the branch pipe (5). The branch pipe (5) is a deformable hose. The water in the water tank (3) will flow into the pressure cylinder (8) through the first one-way valve pipe (7). ) is replenished in the cooling water body, thereby realizing the circulation of the cooling water body, and the main water pipe (6) and the branch pipe (5) are used to cool the laser (2), and at the same time, the moving ring (16) drives the thrust column (28) to move back and forth synchronously. Since the laser (2) is fixedly arranged, when the thrust column (28) moves in the inclined groove (29) on the laser (2), the thrust column (28) drives the heat conductive cover (4) to rotate back and forth synchronously, so that the heat conductive cover (4) can change the position of the main water pipe (6) and the branch pipe (5), thereby improving the uniformity of heat dissipation; S3: The reciprocating moving ring (16) drives the toothed plate frame (17) to move synchronously. At this time, the toothed plates on both sides of the toothed plate frame (17) respectively drive the corresponding first gear (1801) and the second gear (1803) to rotate reciprocatingly. The first gear (1801) drives the inner core rod (1802) and the second connecting plate (1806) to rotate, and the second gear (1803) drives the outer sleeve (1804) and the first connecting plate (1805) to rotate. During this process, the first connecting plate (1805) and the second connecting plate (1806) drive the corresponding sealing sleeve (20) to rotate; S4: The rotating sealing sleeve (20) will drive the airflow nozzle (2201) connected to the bottom to swing back and forth. During this process, the airflow in the ventilator (21) will be ejected through the airflow nozzle (2201). The moving airflow nozzle (2201) will drive the moving rod (2204) to move synchronously. Since the force-bearing rod (2205) on the moving rod (2204) is fitted in the guide groove (23), the force-bearing rod (2205) will drive the moving rod (2204) to move axially, and the moving rod (2204) will pull the rotatably connected telescopic rod (2203) to move synchronously. At this time, the telescopic rod (2203) will drive the adjustment plate (2202). The airflow nozzle (2201) is rotated synchronously, and the size of the nozzle of the airflow nozzle (2201) is adjusted by the adjustment plate (2202), so that when the airflow nozzle (2201) is facing the laser (2) emission port position, the nozzle is the largest, and the laser (2) emission port and the steel plate cutting position are cooled by a large-area airflow. When the airflow nozzle (2201) is away from the laser (2) emission port position, the nozzle is the smallest, and the pressure of the ejected airflow will be increased accordingly to increase the effective jet area of ​​the airflow nozzle (2201), so that the airflow can cool the cut steel plate in a larger range, reduce the risk of deformation of the steel plate cutting part due to high temperature, and use the cooling airflow to clean the debris on the surface of the steel plate.

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