A hydraulic sheet laser cutting device

Abstract

The present invention relates to the technical field of laser cutting, and discloses a hydraulic sheet laser cutting device, including an installation shell. A processing device is installed inside the installation shell. The processing device includes an electric push rod fixedly connected inside the installation shell. The output end of the electric push rod is fixedly connected with a processing column. A laser output head is installed at the bottom of the processing column. A rotation assembly is installed at the bottom of the processing column. The rotation assembly includes a rotation block. An autorotation assembly is installed inside the rotation block. The autorotation assembly includes an autorotation communication block installed inside the rotation block. A protective gas output port is installed at the bottom of the autorotation communication block. This solution has the beneficial effect of maximizing the reduction of the consumption of the protective gas while ensuring the spraying range, and solves the problem that the spraying range of the protective gas sprayed in the cutting area during laser cutting in the prior art mentioned in the above background technology is limited.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly to a hydraulic sheet laser cutting device. Background Art

[0002] Laser cutting is an advanced metal processing technology. It uses a high-power and high-energy-density laser beam focused as a heat source. Through computer-aided design and computer-aided manufacturing technologies, it irradiates the workpiece to be processed along the designed cutting trajectory. Under the irradiation of the laser beam, the material surface will quickly melt, vaporize, ablate or reach the ignition point. At the same time, the molten material is blown away by a high-speed gas flow coaxial with the beam, thereby achieving cutting.

[0003] The basic principle of laser cutting is to irradiate the cutting area with a laser beam of high energy density, causing the material surface to evaporate or melt. At the same time, tiny cutting slits are formed on the material surface, thereby achieving the cutting purpose. Under the action of the laser, due to the strong physical and chemical changes on the material surface, the processed material melts, evaporates or decomposes, and finally a cut is formed. Laser cutting can cut out complex shapes and fine features, with high cutting accuracy, good geometric shape of the cutting slit. The laser cutter does not physically contact the material, so no deformation or stress will be generated, the workpiece deformation is small, the laser cutting slit is narrow, and the cutting surface is smooth and beautiful.

[0004] In laser cutting, oxidation, combustion and other phenomena are likely to occur in the cutting area, resulting in a rough and uneven cutting surface, and even problems such as cracks and deformation. Therefore, a protective gas is usually sprayed in the laser cutting area to ensure the cutting effect. However, in the prior art, the protective gas usually uses a single pipe to directly spray the protective gas on the cutting area. This spraying method has a low spraying range. If multiple pipes are arranged around the cutting area, the consumed gas is large and the cost is too high. Therefore, it does not meet the existing requirements. For this reason, we propose a hydraulic sheet laser cutting device. Summary of the Invention

[0005] The present invention provides a hydraulic sheet laser cutting device, which has the beneficial effect of spraying a protective gas on the cutting area through a rotating spraying block during rotation, while ensuring the spraying range and minimizing the consumption of the protective gas, and solves the problem mentioned in the above background art that in order to ensure that the sheet in the cutting area does not deform during laser cutting, a protective gas is usually sprayed in the cutting area. However, the common spraying method only uses a single pipe to directly spray on the cutting area, and the coverage range of this spraying method is limited.

[0006] The present invention provides the following technical solution: A hydraulic sheet laser cutting device, including a mounting shell, a processing device is installed inside the mounting shell, the processing device includes an electric push rod fixedly connected inside the mounting shell, the output end of the electric push rod is fixedly connected with a processing column, a laser output head is installed at the bottom of the processing column, a rotating assembly is installed at the bottom of the processing column, and the processing column is cylindrical.

[0007] The rotating assembly includes a rotating block, a self-rotating assembly is installed inside the rotating block, the self-rotating assembly includes a self-rotating communication block installed inside the rotating block, a protective gas output port is installed at the bottom of the self-rotating communication block, and the protective gas output port is designed to be inclined.

[0008] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, wherein: a rotating groove is opened inside the processing column, the rotating block is rotatably connected inside the rotating groove, a anti-disengagement block is fixedly connected to the top of the rotating block, the anti-disengagement block is slidably connected inside an anti-disengagement groove, the anti-disengagement groove is opened inside the processing column, the rotating groove is located at the bottom of the processing column and communicates with the outside, the cross-section of the anti-disengagement block, the anti-disengagement groove, the rotating groove and the rotating block is T-shaped, and the anti-disengagement block, the anti-disengagement groove, the rotating groove and the rotating block are annular structures.

[0009] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, wherein: a rotating gear ring is fixedly connected to the outer side wall of the rotating block, the rotating gear ring is meshed with a driving gear, the output end of a rotating driving motor is fixedly connected to the center above the driving gear, the rotating driving motor is fixedly connected to the bottom of a mounting plate, the mounting plate is fixedly connected to the outer side wall of the mounting shell, and the thickness of the rotating gear ring is much larger than the thickness of the driving gear.

[0010] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, wherein: a protective gas output assembly for providing protective gas is arranged inside the processing column, the protective gas output assembly includes a gas supply chamber opened inside the processing column, a one-way intake pipeline and a one-way output pipeline, the gas supply chamber, the rotating block and the one-way output pipeline communicate with each other, one end of the one-way intake pipeline away from the gas supply chamber is communicated with a gas supply device, one end of the one-way output pipeline away from the gas supply chamber is communicated with a transition chamber, the transition chamber is opened inside the processing column, the transition chamber is communicated with a communication channel, the communication channel is opened inside the anti-disengagement block and the rotating block, the one-way intake pipeline supplies gas from the gas supply device to the gas supply chamber, the one-way output pipeline supplies gas from the gas supply chamber to the transition chamber, and the transition chamber is an annular structure.

[0011] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: The self-rotation assembly includes a self-rotation groove formed in the rotating block. A self-rotation connecting block is rotatably connected within the self-rotation groove. A self-rotation gear ring is fixedly connected to the side wall of the self-rotation connecting block. The self-rotation gear ring is engaged with a self-rotation driving gear block, which is installed on the processing column near the rotation groove. The cross-sections of the self-rotation groove and the self-rotation connecting block are in a cross shape.

[0012] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: An air supply channel is formed within the self-rotation connecting block. The air supply channel is in communication with the connecting channel. The bottom of the air supply channel is in communication with a protective gas output port, which is fixedly connected to the bottom of the self-rotation connecting block.

[0013] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: A pressure regulating assembly is provided within the air supply chamber. The pressure regulating assembly includes a regulating plate slidably connected within the air supply chamber. A regulating connecting rod is fixedly connected to the top of the regulating plate, and the regulating connecting rod is slidably connected within a regulating chute formed in the processing column.

[0014] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: An extrusion chute is formed at the bottom of the regulating plate. An extrusion slider is slidably connected within the extrusion chute. A telescopic air supply assembly is installed at the bottom of the extrusion slider. The telescopic air supply assembly includes a telescopic inner plate fixedly connected to the bottom of the extrusion slider. The telescopic inner plate is slidably connected within a telescopic outer plate. A gas supply push rod is fixedly connected to one side of the telescopic outer plate, and the gas supply push rod is installed within the air supply chamber. The lower end of the telescopic outer plate is flush with the bottom of the air supply chamber, and the upper end of the telescopic inner plate is aligned with the bottom of the regulating plate. The gas supply push rod is an electric push rod with a fixed output rate.

[0015] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: A cooling assembly is provided within the rotating block. The cooling assembly includes a piston chamber formed in the rotating block. A piston plate is slidably connected within the piston chamber. A piston spring is fixedly connected to the bottom of the piston plate. The bottom of the piston chamber is in communication with a cooling output port, which is installed at the bottom of the rotating block.

[0016] As an alternative embodiment of the hydraulic sheet laser cutting device of the present invention, the following applies: A piston rod is fixedly connected to the upper surface of the piston plate. The piston rod is slidably connected within an extrusion groove formed in the rotating block. The top end of the piston rod is slidably connected within a track groove formed at the bottom of the self-rotation connecting block.

[0017] The present invention has the following beneficial effects:

[0018] 1. For this hydraulic sheet laser cutting device, through the design of the rotating assembly, the shielding gas can be sprayed in a rotating manner around the laser output head. The rotation driving motor drives the driving gear to start rotating, and the driving gear meshes with a rotating gear ring. Therefore, the rotating gear ring starts to rotate around the laser output head. Since the thickness of the rotating gear ring is much larger than that of the driving gear, no matter how the electric push rod controls the distance between the processing column and the sheet, the driving gear can mesh with the rotating gear ring to ensure the normal progress of the rotating motion. And because the shielding gas output assembly continuously supplies the shielding gas, the shielding gas is continuously ejected around the laser output head. Through this design, it is possible to rotate and spray the shielding gas around the laser cutting, which, compared with the prior art where a single pipe is used for spraying, has the advantage of increasing the spraying range, and compared with using multiple pipes, has the advantages of energy saving and material saving. Moreover, the design of the self-rotating communication block in the rotating block and the inclined design of the shielding gas outlet can further expand the spraying range of the shielding gas, which, compared with the prior art where a single pipe is used for spraying, has the advantage of increasing the spraying range, and compared with using multiple pipes, has the advantages of energy saving and material saving.

[0019] 2. For this hydraulic sheet laser cutting device, through the design of the pressure regulating assembly, it is possible to adjust the supply efficiency of the shielding gas while adjusting the distance between the laser output head and the sheet. For sheets with a larger cutting thickness, it is necessary to control the processing column to slide upward through the electric push rod to increase the distance between the laser output head and the sheet. During this process, the adjusting connecting rod and the adjusting plate fixedly connected to the inner wall of the installation shell will slide downward in the air supply chamber. At this time, the movable space in the air supply chamber decreases, and during the piston movement, the supply rate of the gas is controlled by the moving speed of the telescopic air supply assembly and the cross-sectional area of the air supply chamber, and the moving speed of the telescopic air supply assembly is controlled by the air supply push rod. Therefore, on the premise of ensuring the unchanged power of the air supply push rod, by reducing the cross-sectional area of the air supply chamber, the supply rate of the gas can be reduced, and vice versa. Through this design, it is possible to adjust the output rate of the shielding gas while adjusting the distance between the laser output head and the sheet in a lifting manner, thereby ensuring that when cutting thick plates, the laser energy has more time to penetrate the material, preventing the cutting surface from becoming wider due to excessive gas flow and affecting the cutting accuracy.

[0020] 3. The hydraulic sheet laser cutting device can further improve the cooling effect on the cutting area through the design of the cooling component. During the rotation of the self-rotating connecting block, due to the design of the track groove opened at the bottom of the self-rotating connecting block and the design of the piston spring in the piston chamber, the piston rod continuously moves up and down. Through this movement, gas can be continuously absorbed from the outside through the cooling outlet and the gas in the piston chamber can be ejected out through the cooling outlet. Through this design, the effect of jetting air on the cutting area can be effectively achieved, further improving the cooling effect on the cutting area and effectively ensuring the cutting accuracy and cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of the present invention.

[0022] Figure 2 It is a bottom view structural schematic diagram of the present invention.

[0023] Figure 3 It is a rear view structural schematic diagram of the present invention.

[0024] Figure 4 It is a sectional structural schematic diagram of the present invention.

[0025] Figure 5 of the present invention Figure 4 Enlarged structural schematic diagram at position A.

[0026] Figure 6 of the present invention Figure 4 Enlarged structural schematic diagram at position B.

[0027] Figure 7 of the present invention Figure 5 Enlarged structural schematic diagram at position C.

[0028] Figure 8 It is a structural schematic diagram of the self-rotating connecting block of the present invention.

[0029] Figure 9 It is a partial sectional structural schematic diagram of the bottom of the processing column of the present invention.

[0030] In the figure: 1. Installation shell; 2. Processing device; 21. Electric push rod; 22. Processing column; 23. Laser output head; 3. Rotating assembly; 31. Rotating groove; 32. Rotating block; 33. Anti - detachment groove; 34. Anti - detachment block; 35. Rotating gear ring; 36. Driving gear; 37. Rotating drive motor; 38. Mounting plate; 4. Protection gas output assembly; 41. Gas supply chamber; 42. One - way intake pipe; 43. One - way output pipe; 44. Transition chamber; 45. Connecting channel; 5. Self - rotating assembly; 51. Self - rotating groove; 52. Self - rotating connecting block; 53. Self - rotating gear ring; 54. Self - rotating driving gear block; 55. Ventilation channel; 56. Protection gas outlet; 6. Pressure regulating assembly; 61. Regulating plate; 62. Regulating chute; 63. Regulating connecting rod; 64. Extrusion chute; 65. Extrusion slider; 66. Telescopic gas supply assembly; 661. Telescopic outer plate; 662. Telescopic inner plate; 67. Gas supply push rod; 7. Cooling component; 71. Piston chamber; 72. Piston plate; 73. Extrusion groove; 74. Piston rod; 75. Trajectory groove; 76. Piston spring; 77. Cooling output port. Detailed implementation mode

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1. The purpose of this embodiment is to facilitate the solution of the problem that in the process of laser cutting, in order to ensure that the plate in the cutting area does not deform, protective gas is usually sprayed in the cutting area. However, in the common spraying method, only one pipe is used to directly spray towards the cutting area, and the coverage range of this spraying method is limited. Please refer to Figures 1 to 9 A hydraulic sheet metal laser cutting device includes an installation shell 1. A processing device 2 is installed inside the installation shell 1. The processing device 2 includes an electric push rod 21 fixedly connected inside the installation shell 1. The output end of the electric push rod 21 is fixedly connected to a processing column 22. A laser output head 23 is installed at the bottom of the processing column 22. A rotating assembly 3 is installed at the bottom of the processing column 22.

[0033] The rotating assembly 3 includes a rotating block 32. A self - rotating assembly 5 is installed inside the rotating block 32. The self - rotating assembly 5 includes a self - rotating connecting block 52 installed inside the rotating block 32. A protection gas outlet 56 is installed at the bottom of the self - rotating connecting block 52.

[0034] The installation shell 1 provides support for the entire laser cutting device. The installation shell 1 is connected to the robotic arm to achieve mobile cutting, and through the control of the numerical control machine tool, precise cutting is achieved (the movement of laser cutting is controlled by the numerical control machine tool, and the structure involved in this step is prior art, so no specific description will be made for comparison in this solution).

[0035] By driving the electric push rod 21, the distance between the laser output head 23 at the bottom of the processing column 22 and the plate can be adjusted. This distance is adjusted according to the thickness of the plate. The design of the rotating assembly 3 enables the protective gas to rotate and spray around the laser output head 23. The design of the self-rotating connecting block 52 in the rotating block 32 and the inclined design of the protective gas outlet 56 can further expand the spraying range of the protective gas. Compared with the prior art where a single pipe is used for spraying, it has the advantage of increasing the spraying range. Compared with using multiple pipes, it has the advantages of energy conservation and material saving.

[0036] A rotating groove 31 is opened in the processing column 22. A rotating block 32 is rotatably connected in the rotating groove 31. A anti-detachment block 34 is fixedly connected to the top of the rotating block 32. The anti-detachment block 34 is slidably connected in the anti-detachment groove 33, and the anti-detachment groove 33 is opened in the processing column 22.

[0037] A rotating gear ring 35 is fixedly connected to the outer side wall of the rotating block 32. The rotating gear ring 35 is meshed with a driving gear 36. The output end of a rotating driving motor 37 is fixedly connected to the center above the driving gear 36. The rotating driving motor 37 is fixedly connected to the bottom of the mounting plate 38, and the mounting plate 38 is fixedly connected to the outer side wall of the installation shell 1.

[0038] The mounting plate 38 provides an installation space for the rotating driving motor 37. The rotating driving motor 37 drives the driving gear 36 to start rotating. Since the driving gear 36 is meshed with the rotating gear ring 35, the rotating gear ring 35 starts to rotate around the laser output head 23. Since the thickness of the rotating gear ring 35 is much larger than that of the driving gear 36, no matter how the electric push rod 21 controls the distance between the processing column 22 and the plate, the driving gear 36 can be meshed with the rotating gear ring 35 to ensure the normal progress of the rotating motion. And because the protective gas output assembly 4 continuously provides the protective gas, the protective gas continuously sprays around the laser output head 23. Through this design, the rotating spraying of the protective gas around the laser cutting can be realized. This design, compared with the prior art where a single pipe is used for spraying, has the advantage of increasing the spraying range. Compared with using multiple pipes, it has the advantages of energy conservation and material saving. The design of the anti-detachment groove 33 and the anti-detachment block 34 ensures that the rotating block 32 will not fall off during the rotation process.

[0039] Inside the processing column 22, there is a protective gas output component 4 for providing protective gas. The protective gas output component 4 includes a gas supply chamber 41 opened in the processing column 22, a one-way intake pipe 42, and a one-way output pipe 43. The gas supply chamber 41, the rotating block 32, and the one-way output pipe 43 are interconnected. One end of the one-way intake pipe 42 away from the gas supply chamber 41 is connected to a gas supply device, and one end of the one-way output pipe 43 away from the gas supply chamber 41 is connected to a transition chamber 44. The transition chamber 44 is opened in the processing column 22, and the transition chamber 44 is connected to a communication channel 45. The communication channel 45 is opened in the anti-disengagement block 34 and the rotating block 32.

[0040] The protective gas output component 4 is used to supply protective gas to the protective gas outlet 56 and, driven by the pressure regulating component 6, spray the gas through the protective gas outlet 56. Since the gas supply device, the one-way intake pipe 42, the gas supply chamber 41, the one-way output pipe 43, the transition chamber 44, the communication channel 45, and the self-rotation drive gear block 54 are connected in sequence, the protective gas is transported to the protective gas outlet 56 through the above channels and, driven by the pressure regulating component 6, is sprayed out with a certain pressure. This design ensures the output of the protective gas, and driven by the rotating component 3, the protective gas is continuously sprayed around the laser output head 23. Through this design, the rotating spraying of the protective gas around the laser cutting can be realized. This design has the advantage of increasing the spraying range compared with the prior art where a single pipe is used for spraying, and has the advantages of energy saving and material saving compared with using multiple pipes. Moreover, through the continuous jetting of the protective gas from the protective gas outlet 56, the cutting area can also be cooled, thereby ensuring the cutting effect.

[0041] The self-rotation component 5 includes a self-rotation groove 51 opened in the rotating block 32. A self-rotation connecting block 52 is rotatably connected in the self-rotation groove 51. A self-rotation gear ring 53 is fixedly connected to the side wall of the self-rotation connecting block 52. The self-rotation gear ring 53 is meshed with a self-rotation drive gear block 54. The self-rotation drive gear block 54 is installed on one side of the processing column 22 close to the rotation groove 31.

[0042] An air ventilation channel 55 is opened in the self-rotation gear ring 53. The air ventilation channel 55 is connected to the communication channel 45. The bottom of the air ventilation channel 55 is connected to a protective gas outlet 56. The protective gas outlet 56 is fixedly connected to the bottom of the self-rotation gear ring 53.

[0043] During the rotation of the rotating block 32 around the processing column 22, the self-rotating gear ring 53 and the self-rotating driving gear block 54 start to mesh and rotate. The self-rotating driving gear block 54 is installed in the processing column 22. Therefore, the self-rotating connecting block 52 starts to rotate around its own central axis within the rotating block 32. Due to the inclined design of the protective gas outlet 56 at the bottom of the self-rotating connecting block 52, the spraying range can be further expanded through the rotation of the self-rotating connecting block 52, thereby further improving the protection effect of the protective gas on the cutting area.

[0044] Embodiment 2. This embodiment aims to facilitate the solution of the problem that the spraying rate of the protective gas directly affects the processing accuracy of plates with different thicknesses. This embodiment is an explanatory description based on Embodiment 1. Specifically, please refer to Figures 1 to 9 , a pressure regulating component 6 is arranged in the air supply chamber 41. The pressure regulating component 6 includes a regulating plate 61 slidably connected in the air supply chamber 41. The top of the regulating plate 61 is fixedly connected with a regulating connecting rod 63. The regulating connecting rod 63 is slidably connected in a regulating chute 62. The regulating chute 62 is opened in the processing column 22.

[0045] An extrusion chute 64 is opened at the bottom of the regulating plate 61. An extrusion slider 65 is slidably connected in the extrusion chute 64. A telescopic air supply component 66 is installed at the bottom of the extrusion slider 65. The telescopic air supply component 66 includes a telescopic inner plate 662 fixedly connected to the bottom of the extrusion slider 65. The telescopic inner plate 662 is slidably connected in a telescopic outer plate 661. One side of the telescopic outer plate 661 is fixedly connected with an air supply push rod 67. The air supply push rod 67 is installed in the air supply chamber 41. The lower end of the telescopic outer plate 661 is flush with the bottom of the air supply chamber 41. The upper end of the telescopic inner plate 662 is aligned with the bottom of the regulating plate 61.

[0046] The thickness of the material directly affects the optimal distance between the laser cutting head and the plate. Generally speaking, thinner materials require a smaller distance to ensure that the laser cutting head does not rotate idly and can cut effectively. On the contrary, thicker materials require a larger distance to ensure that the laser cutting head can move smoothly and cut effectively. When cutting thin plates, the oxygen or other protective gases, such as nitrogen, argon, etc., can be appropriately increased, depending on the cutting material and the required flow rate. This is because when cutting thin plates, the laser energy is more likely to penetrate the material, and increasing the gas flow rate can help better blow away the molten material and improve the cutting quality and efficiency. For thicker plates, the flow rate of the protective gas should be appropriately reduced. This is because when cutting thick plates, the laser energy takes more time to penetrate the material. If the gas flow rate is too large, it may cause the cutting surface to become wider and even affect the cutting accuracy. Therefore, the thicker the plate, the larger the distance between the laser output head 23 and the plate, and the smaller the required output rate at this time. The thinner the plate, the smaller the distance between the laser output head 23 and the plate, and the larger the required output rate at this time.

[0047] Since the installation shell 1 is fixed inside the robotic arm, for cutting thick plates, it is necessary to control the processing column 22 to slide upward through the electric push rod 21 to increase the distance between the laser output head 23 and the plate. During this process, the adjusting connecting rod 63 and the adjusting plate 61 fixedly connected to the inner wall of the installation shell 1 will slide downward in the air supply chamber 41. At this time, the movable space in the air supply chamber 41 decreases. During the movement of the piston, the supply rate of the gas is controlled by the moving speed of the telescopic air supply component 66 and the cross-sectional area of the air supply chamber 41. The moving speed of the telescopic air supply component 66 is controlled by the air supply push rod 67. Therefore, on the premise of keeping the power of the air supply push rod 67 unchanged, by reducing the cross-sectional area of the air supply chamber 41, the reduction of the air supply rate can be achieved. Vice versa, through this design, it is possible to adjust the output rate of the protective gas while adjusting the distance between the laser output head 23 and the plate up and down, so as to ensure that when cutting thick plates, the laser energy can have more time to penetrate the material and prevent the cutting surface from becoming wider due to excessive gas flow, affecting the cutting accuracy.

[0048] The design of the extrusion chute 64 and the extrusion slider 65 ensures that the telescopic air supply component 66 can slide in the air supply chamber 41 under the drive of the air supply push rod 67. The telescopic design of the telescopic air supply component 66 ensures that when the adjusting plate 61 adjusts the volume of the extrusion area, the airtightness of the extruded area can be ensured.

[0049] Example 3. This example aims to promote the solution of the problem that only spraying and cooling with the protective gas may lead to poor cooling effect. This example is an explanatory description based on Example 2. Specifically, please refer to Figures 1 to 9 , a cooling component 7 is arranged in the rotating block 32. The cooling component 7 includes a piston chamber 71 opened in the rotating block 32. A piston plate 72 is slidably connected in the piston chamber 71. A piston spring 76 is fixedly connected to the bottom of the piston plate 72. The bottom of the piston chamber 71 is communicated with a cooling output port 77. The cooling output port 77 is installed at the bottom of the rotating block 32.

[0050] A piston rod 74 is fixedly connected to the upper surface of the piston plate 72. The piston rod 74 is slidably connected in the extrusion groove 73 opened in the rotating block 32. The top end of the piston rod 74 is slidably connected in the track groove 75 opened at the bottom of the self-rotating communication block 52.

[0051] During the rotation of the self-rotating connection block 52, due to the design of the track groove 75 opened at the bottom of the self-rotating connection block 52 and the design of the piston spring 76 in the piston chamber 71, the piston rod 74 continuously moves up and down. Through this movement, gas can be continuously absorbed from the outside through the cooling outlet 77, and the gas in the piston chamber 71 can be ejected out through the cooling outlet 77. Through this design, the effect of jetting air to the cutting area can be effectively achieved, further improving the cooling effect on the cutting area and effectively ensuring the cutting accuracy and cutting quality.

[0052] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A hydraulic sheet laser cutting device, comprising a mounting shell (1), characterized in that: A processing device (2) is installed inside the installation shell (1). The processing device (2) includes an electric push rod (21) fixedly connected inside the installation shell (1). The output end of the electric push rod (21) is fixedly connected with a processing column (22). A laser output head (23) is installed at the bottom of the processing column (22). A rotating assembly (3) is installed at the bottom of the processing column (22). The rotating assembly (3) includes a rotating block (32). A self-rotating assembly (5) is installed inside the rotating block (32). The self-rotating assembly (5) includes a self-rotating communication block (52) installed inside the rotating block (32). A protective gas output port (56) is installed at the bottom of the self-rotating communication block (52). A rotating groove (31) is opened inside the processing column (22). The rotating block (32) is rotatably connected inside the rotating groove (31). A anti-disengagement block (34) is fixedly connected to the top of the rotating block (32). The anti-disengagement block (34) is slidably connected inside an anti-disengagement groove (33). The anti-disengagement groove (33) is opened inside the processing column (22). A rotating toothed ring (35) is fixedly connected to the outer side wall of the rotating block (32). The rotating toothed ring (35) is meshed with a driving gear (36). The output end of a rotating driving motor (37) is fixedly connected to the center above the driving gear (36). The rotating driving motor (37) is fixedly connected to the bottom of a mounting plate (38). The mounting plate (38) is fixedly connected to the outer side wall of the installation shell (1). A protective gas output assembly (4) for providing protective gas is arranged inside the processing column (22). The protective gas output assembly (4) includes a gas supply chamber (41), a one-way intake pipe (42), and a one-way output pipe (43) opened inside the processing column (22). The gas supply chamber (41), the rotating block (32), and the one-way output pipe (43) are interconnected. One end of the one-way intake pipe (42) far away from the gas supply chamber (41) is communicated with a gas supply device. One end of the one-way output pipe (43) far away from the gas supply chamber (41) is communicated with a transition chamber (44). The transition chamber (44) is opened inside the processing column (22). The transition chamber (44) is communicated with a communication channel (45). The communication channel (45) is opened inside the anti-disengagement block (34) and the rotating block (32). The self-rotating assembly (5) includes a self-rotating groove (51) opened inside the rotating block (32). The self-rotating communication block (52) is rotatably connected inside the self-rotating groove (51). A self-rotating toothed ring (53) is fixedly connected to the side wall of the self-rotating communication block (52). The self-rotating toothed ring (53) is meshed with a self-rotating driving tooth block (54). The self-rotating driving tooth block (54) is installed on one side of the processing column (22) close to the rotating groove (31).

2. The hydraulic sheet laser cutting device according to claim 1, wherein: An air vent passage (55) is provided in the self-rotating connection block (52). The air vent passage (55) communicates with the connection passage (45). A protective gas outlet (56) is connected to the bottom of the air vent passage (55), and the protective gas outlet (56) is fixedly connected to the bottom of the self-rotating connection block (52).

3. A hydraulic sheet laser cutting device according to claim 1, characterized in that: A pressure regulating assembly (6) is provided in the air supply chamber (41). The pressure regulating assembly (6) includes a regulating plate (61) slidably connected in the air supply chamber (41). The top of the regulating plate (61) is fixedly connected to a regulating connecting rod (63). The regulating connecting rod (63) is slidably connected in a regulating chute (62), and the regulating chute (62) is provided in the processing column (22).

4. A hydraulic sheet laser cutting device according to claim 3, characterized in that: An extrusion chute (64) is provided at the bottom of the regulating plate (61). An extrusion slider (65) is slidably connected in the extrusion chute (64). A telescopic air supply assembly (66) is installed at the bottom of the extrusion slider (65). The telescopic air supply assembly (66) includes a telescopic inner plate (662) fixedly connected to the bottom of the extrusion slider (65). The telescopic inner plate (662) is slidably connected in a telescopic outer plate (661). One side of the telescopic outer plate (661) is fixedly connected to an air supply push rod (67). The air supply push rod (67) is installed in the air supply chamber (41). The lower end of the telescopic outer plate (661) is flush with the bottom of the air supply chamber (41), and the upper end of the telescopic inner plate (662) is aligned with the bottom of the regulating plate (61).

5. A hydraulic sheet laser cutting device according to claim 1, wherein: A cooling assembly (7) is provided in the rotating block (32). The cooling assembly (7) includes a piston chamber (71) provided in the rotating block (32). A piston plate (72) is slidably connected in the piston chamber (71). The bottom of the piston plate (72) is fixedly connected to a piston spring (76). A cooling outlet (77) is connected to the bottom of the piston chamber (71), and the cooling outlet (77) is installed at the bottom of the rotating block (32).

6. The hydraulic sheet laser cutting device according to claim 5, wherein: The upper surface of the piston plate (72) is fixedly connected to a piston rod (74). The piston rod (74) is slidably connected in an extrusion groove (73), and the extrusion groove (73) is provided in the rotating block (32). The top end of the piston rod (74) is slidably connected in a track groove (75), and the track groove (75) is provided at the bottom of the self-rotating connection block (52).

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