Laser cutting device for high-voltage cabinet plate

By designing a cutting head and baffle assembly with multi-directional displacement, the problem of laser reflection during cutting of high-voltage cabinet panels is solved, the cutting head is protected, and the stability and safety of the cutting process are achieved.

CN120619630AInactive Publication Date: 2025-09-12江苏贯中电气有限公司
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Patent Information

Application Number
CN202511077247.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-09-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

High-voltage cabinet panels are highly reflective when cut, which can easily cause the laser to reflect and damage the cutting head.

Method used

A laser cutting device was designed, which includes a workbench, a module and a cutting head. The multi-directional displacement of the cutting head is achieved through the movement of the module. The device is equipped with a baffle assembly and a photoelectric tube. The baffle assembly blocks the reflected laser when the laser does not penetrate the workpiece. The photoelectric tube senses the reflected laser to control the opening and closing of the baffle and protect the focusing mirror.

Benefits of technology

It effectively protects the focusing lens, avoids damage to the cutting head caused by laser reflection, and ensures the stability and safety of the cutting process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a laser cutting device for high-voltage cabinet plates, and relates to the technical field of laser cutting, the laser cutting device comprises a workbench, two first modules, a second module, a third module, a cutting head, a case and a dust removal filter, the workbench is fixedly connected with the case, the two first modules are symmetrically arranged on the two sides of the workbench, and the second module is fixedly connected with the case; the two first modules are fixedly connected with the machine box, the two second modules are fixedly connected with the two first modules respectively, the two second modules are fixedly connected with the two second modules, the two second modules are fixedly connected with the third module, the third module is arranged between the two second modules, the third module is fixedly connected with the cutting head, and the machine box is communicated with the dust removal filter through a pipeline. Reflected laser generated during cutting is shielded by opening the baffle assembly, the focus lens is protected, and after a laser beam penetrates through a workpiece, the reflected laser is not generated any more, so that the baffle assembly is closed.
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Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, in particular to a laser cutting device for high-voltage cabinet panels. Background Art

[0002] Laser cutting involves focusing the laser light emitted from a laser into a high-power density beam through an optical system. Under computer control, the laser processing head and the material being processed continuously move relative to each other according to a pre-drawn pattern, thus processing the object into the desired shape.

[0003] Since the material used to make the high-voltage cabinet is aluminum-zinc plate, the biggest pain point when cutting this type of plate is its high reflectivity. Therefore, the aluminum-zinc plate is easy to reflect the laser during cutting, causing damage to the cutting head. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser cutting device for high-voltage cabinet panels to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A laser cutting device for high-voltage cabinet panels, the laser cutting device includes a workbench, a first module, a second module, a third module, a cutting head, a chassis and a dust removal filter. The workbench and the chassis are tightly connected. The first module is provided with two groups, and the two groups of first modules are symmetrically placed on both sides of the workbench. The two groups of first modules are tightly connected to the chassis. The second module is provided with two groups, and the two groups of second modules are tightly connected to the two groups of first modules respectively. The two groups of second modules are tightly connected to the third module. The third module is placed between the two groups of second modules. The third module is tightly connected to the cutting head, and the chassis and the dust removal filter are connected by a pipeline.

[0006] The workpiece to be processed is placed on the workbench, and the cutting head is used to cut the workpiece. Through the movement of the first module, the second module and the third module, the cutting head can cut to any position of the workpiece. The cutting head can move left and right above the workpiece through the third module. The second module can drive the cutting head to move up and down above the workpiece. The cutting head moves back and forth above the workpiece through the first module. The first module and the workbench are placed above the chassis, and the two groups of first modules are on both sides of the workbench. The chassis is connected to the dust removal filter pipe. The dust removal filter is used to treat the exhaust gas and waste residue generated during cutting.

[0007] Furthermore, the workbench includes support bars, which are provided in several groups. Several groups of support bars are fastened to the chassis, and upper ends of several groups of support bars are serrated.

[0008] The workbench is composed of several groups of support bars. The serrated upper end can support the workpiece and will not damage the support bars during cutting. The exhaust gas and waste residue generated during cutting will fall into the inside of the chassis along the gaps between the support bars.

[0009] Furthermore, the first module includes a first slide rail, a first motor and a first slider; the first slide rail is firmly connected to the chassis, the first slide rail is firmly connected to the first motor, the first slide rail is slidably connected to the first slider, and the first slider is firmly connected to the second module.

[0010] The first slide rail is fixed to the upper surface of the chassis, and the first motor drives the first slider to slide back and forth on the first slide rail by outputting torque. Through the fixation of the first slider and the second module, the second module also slides with the sliding of the first slider, so that the cutting head can also move back and forth along the axis direction of the first slide rail.

[0011] Furthermore, the second module includes a second slide rail, a second motor and a second slider. The second slide rail and the first slider are fastened together. The second slide rail and the second motor are fastened together. The second slide rail and the second slider are slidably connected. The second slider and the third module are fastened together.

[0012] The second slide rail is fixed above the first slider. The sliding of the first slider drives the movement of the second slide rail. The second motor drives the second slider to slide up and down on the second slide rail by outputting torque. The second slider and the third module are fixed. The third module moves as the second slider slides up and down, so that the cutting head can also move up and down along the axis direction of the second slide rail.

[0013] Furthermore, the third module includes a third slide rail, a third motor, a rack, a first gear, a slide frame and a rotating shaft. The two ends of the third slide rail are respectively fastened to the second slider, the third slide rail and the slide frame are slidably connected, a cavity is provided in the third slide rail, the rack is fastened to the lower surface of the cavity, the slide frame is fastened to the third motor, the output end of the third motor is fastened to the rotating shaft, a first gear is provided on the outer sleeve of the rotating shaft, the rotating shaft and the first gear are fastened to the rotating shaft, the rotating shaft is placed in the slide frame, the first gear and the rack are meshed, and the slide frame is fastened to the cutting head.

[0014] The third slide rail is fixed between the two second slide blocks. When the second slide blocks slide up and down, the third slide rail moves accordingly. The rack is placed in the inner cavity of the third slide rail. The third motor drives the rotating shaft to rotate by outputting torque. The first gear is sleeved outside the rotating shaft, so the first gear rotates with the rotating shaft. Through the engagement of the first gear and the rack, the rotation of the first gear drives the slide frame to move left and right. Through the fixation of the slide frame and the cutting head, the cutting head can reach any position of the workpiece.

[0015] Furthermore, the cutting head includes a shell, an interface, a baffle assembly, an air inlet pipe, a nozzle, a collimating lens, a focusing lens and a photoelectric tube. The shell and the sliding frame are fastened together, the upper end of the shell is connected to the interface, an air inlet pipe is provided on the outside of the shell, the shell and the air inlet pipe are connected, and the lower end of the shell is connected to the nozzle.

[0016] One side of the shell is fixed on the slide frame, so the slide frame can drive the cutting head to move. The laser beam enters the shell from the interface and is emitted from the nozzle to the workpiece to cut the workpiece. Auxiliary gas enters the shell from the air inlet pipe and is transported to the inside of the shell to blow off the waste residue generated during cutting.

[0017] Furthermore, a first inner cavity, a second inner cavity and a third inner cavity are sequentially provided inside the shell, a collimating lens and a focusing lens are sequentially provided in the first inner cavity, a baffle assembly is provided in the second inner cavity, and a photoelectric tube is provided in the third inner cavity.

[0018] The first inner cavity, the second inner cavity and the third inner cavity are arranged in sequence from top to bottom. The collimator is used to convert the incident light beam into parallel light. The focusing lens is used to focus the parallel light into a focus and act on the material to be cut to melt and cut it. The baffle assembly is used to block the reflected laser. The phototube is used to sense the reflected laser. Before the laser is emitted, the baffle assembly is opened first. When the focused light spot hits the workpiece, the surface of the workpiece will reflect the laser. At this time, the baffle assembly blocks the laser reflected back to the cutting head and protects the focusing lens. When the laser penetrates the workpiece and moves for cutting, the cut part of the workpiece will absorb the laser. At this time, there is basically no reflected laser, and the phototube does not sense the reflected laser, and then retracts the baffle assembly.

[0019] Furthermore, the baffle assembly includes a fourth motor, a driving gear, a driven gear, a fan-shaped baffle, a connecting frame, a fixed shaft and a fixed plate. The fourth motor is tightly connected to the outer shell, the output end of the fourth motor is inserted into the outer shell, the output end of the fourth motor is tightly connected to the driving gear, the driving gear and the driven gear are meshed, a plurality of groups of sliding grooves are provided on the driven gear, a plurality of groups of sliding grooves are sleeved outside the fixed shaft, a plurality of groups of sliding grooves are slidingly connected to the fixed shaft, both ends of the fixed shaft are tightly connected to the wall surface of the second inner cavity, a connecting frame is provided on one side of the sliding groove, one end of the connecting frame is hinged to the driven gear, the other end of the connecting frame is hinged to the fan-shaped baffle, a plurality of groups of fan-shaped baffles are hinged to the fixed plate, and the fixed plate is tightly connected to the wall surface of the second inner cavity.

[0020] When cutting begins and the laser has not yet penetrated the workpiece, the photoelectric tube senses the reflected laser, and the fourth motor outputs torque to drive the driving gear to rotate counterclockwise. The driving gear and the driven gear are engaged, and when the driven gear is driven to rotate clockwise, the sliding groove slides along the fixed axis, and is hinged to the driven gear and the fan-shaped baffle at both ends of the connecting frame. When the driven gear rotates, it drives the connecting frame to rotate. At the same time, the other end of the fan-shaped baffle is hinged to the fixed plate, so several groups of fan-shaped baffles rotate and close. At this time, the fan-shaped baffle tends to close, and when the fan-shaped baffle is closed to the minimum range, there is still a light hole in the middle of the baffle, so that the laser beam in the middle can pass through and illuminate the workpiece. When the laser penetrates the workpiece, the photoelectric tube does not sense the reflected laser, and the fourth motor outputs torque to drive the driving gear to rotate clockwise, and the fan-shaped baffle rotates in the opposite direction, so that the fan-shaped baffle tends to open and the light hole gradually increases.

[0021] Furthermore, the chassis includes a shell, an air intake channel and an air outlet pipe, one end of the air outlet pipe is connected to the air intake channel pipe, the other end of the air outlet pipe passes through the shell, and the air outlet pipe passes through one end of the shell and is connected to the dust removal filter pipe. A fourth inner cavity is provided inside the shell, and the air intake channel is placed inside the fourth inner cavity. The air intake channel is provided with a fifth inner cavity and an opening.

[0022] When cutting the workpiece, waste slag and waste gas will be generated. The waste slag and waste gas will be scattered into the inside of the shell through the blowing of auxiliary gas, and will be sucked into the inside of the suction channel through the opening. Then, they will enter the exhaust pipe from the suction channel, and finally be sucked into the dust removal filter for filtration and then discharged into the atmosphere.

[0023] Compared with the prior art, the beneficial effect of the present invention is as follows: when laser cutting starts and the laser has not yet penetrated the workpiece, the photoelectric tube detects the reflected laser, first the cutting head is moved above the position to be processed, and the interface is connected to the laser beam for cutting. When the fourth motor outputs torque to drive the driving gear to rotate counterclockwise, the driven gear rotates clockwise, driving the fan-shaped baffle to close, and leaving a light hole in the middle. The laser hits the workpiece. Since it has not yet penetrated the workpiece, the surface of the workpiece will reflect the laser, and the fan-shaped baffle blocks the reflected laser. When the laser penetrates the workpiece and moves for cutting, the workpiece absorbs the laser, and no reflected laser is generated at this time. When the photoelectric tube cannot detect the reflected laser, the fourth motor outputs torque to drive the driving gear to rotate clockwise, and the fan-shaped baffle opens and closes and returns to the initial state. Since the focusing mirror focuses on parallel light, the light path forms a cone. At this time, when the fan-shaped baffle is opened, it will slightly block the light path at the edge. Therefore, after completing the function of protecting the focusing mirror, the fan-shaped baffle needs to return to its initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a cross-sectional schematic diagram of the present invention as a whole; Figure 3 for Figure 2 A magnified view of the part A of the view; Figure 4 Another cross-sectional schematic diagram of the present invention as a whole; Figure 5 for Figure 4 A magnified view of the part B of the view; Figure 6 It is a structural schematic diagram of the cutting knife of the present invention; Figure 7 Schematic diagram of the structure of the baffle assembly of the present invention; Figure 8 It is a bottom view of the baffle assembly of the present invention.

[0025] In the figure: 1. Workbench; 11. Support bar; 2. First module; 21. First slide rail; 22. First motor; 23. First slider; 3. Second module; 31. Second slide rail; 32. Second motor; 33. Second slider; 4. Third module; 41. Third slide rail; 42. Third motor; 43. Rack; 44. First gear; 45. Slide frame; 46. Rotating shaft; 5. Cutting head; 51. Housing; 511. First inner cavity; 512. Second inner cavity; 513. Third inner cavity; 52. Interface ; 53. Baffle assembly; 531. Fourth motor; 532. Driving gear; 533. Driven gear; 5331. Sliding groove; 534. Fan-shaped baffle; 535. Connecting frame; 536. Fixed shaft; 537. Fixed plate; 54. Air inlet pipe; 55. Nozzle; 56. Collimating mirror; 57. Focusing mirror; 58. Photoelectric tube; 6. Chassis; 61. Shell; 611. Fourth inner cavity; 62. Intake channel; 621. Fifth inner cavity; 622. Opening; 63. Air outlet pipe; 7. Dust filter. DETAILED DESCRIPTION

[0026] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0027] Example: Figures 1-8 As shown, the present invention provides a technical solution for a laser cutting device for high-voltage cabinet panels.

[0028] like Figure 1As shown, a laser cutting device for high-voltage cabinet panels includes a workbench 1, a first module 2, a second module 3, a third module 4, a cutting head 5, a chassis 6 and a dust filter 7. The workbench 1 and the chassis 6 are tightly connected. There are two groups of first modules 2. The two groups of first modules 2 are symmetrically placed on both sides of the workbench 1. The two groups of first modules 2 are tightly connected to the chassis 6. There are two groups of second modules 3. The two groups of second modules 3 are tightly connected to the two groups of first modules 2 respectively. The two groups of second modules 3 are tightly connected to the third module 4. The third module 4 is placed between the two groups of second modules 3. The third module 4 is tightly connected to the cutting head 5. The chassis 6 and the dust filter 7 are connected by pipes.

[0029] The workpiece to be processed is placed on the workbench 1, and the cutting head 5 is used to cut the workpiece. Through the movement of the first module 2, the second module 3 and the third module 4, the cutting head 5 can cut to any position of the workpiece. The cutting head 5 can move left and right above the workpiece through the third module 4. The second module 3 can drive the cutting head 5 to move up and down above the workpiece. The cutting head 5 moves back and forth above the workpiece through the first module 2. The first module 2 and the workbench 1 are both placed above the chassis 6. The two groups of first modules 2 are respectively on both sides of the workbench 1. The chassis 6 and the dust filter 7 are connected by a pipe. The dust filter 7 is used to treat the exhaust gas and waste residue generated during cutting.

[0030] like Figure 1 As shown, the workbench 1 includes support bars 11. The support bars 11 are provided in several groups. Several groups of support bars 11 are fastened to the chassis 6. The upper ends of several groups of support bars 11 are serrated.

[0031] The workbench 1 is composed of several groups of support bars 11. The serrated upper end can support the workpiece and will not damage the support bars 11 during cutting. The waste gas and waste residue generated during cutting will fall into the inside of the chassis 6 along the gaps between the support bars 11.

[0032] like Figure 1-Figure 2 As shown, the first module 2 includes a first slide rail 21, a first motor 22 and a first slider 23. The first slide rail 21 is firmly connected to the chassis 6, the first slide rail 21 is firmly connected to the first motor 22, the first slide rail 21 is slidingly connected to the first slider 23, and the first slider 23 is firmly connected to the second module 3.

[0033] The first slide rail 21 is fixed to the upper surface of the chassis 6, and the first motor 22 drives the first slider 23 to slide back and forth on the first slide rail 21 by outputting torque. Through the fixation of the first slider 23 and the second module 3, the second module 3 also slides with the sliding of the first slider 23, so that the cutting head 5 can also move back and forth along the axial direction of the first slide rail 21.

[0034] like Figure 1-Figure 2As shown, the second module 3 includes a second slide rail 31, a second motor 32 and a second slider 33. The second slide rail 31 and the first slider 23 are fastened together, the second slide rail 31 and the second motor 32 are fastened together, the second slide rail 31 and the second slider 33 are slidingly connected, and the second slider 33 and the third module 4 are fastened together.

[0035] The second slide rail 31 is fixed above the first slider 23. The sliding of the first slider 23 drives the movement of the second slide rail 31. The second motor 32 drives the second slider 33 to slide up and down on the second slide rail 31 by outputting torque. Through the fixation of the second slider 33 and the third module 4, the third module 4 moves as the second slider 33 slides up and down, so that the cutting head 5 can also move up and down along the axis direction of the second slide rail 31.

[0036] like Figure 2-Figure 4 As shown, the third module 4 includes a third slide rail 41, a third motor 42, a rack 43, a first gear 44, a slide frame 45 and a rotating shaft 46. The two ends of the third slide rail 41 are respectively fastened to the second slider 33, the third slide rail 41 and the slide frame 45 are slidingly connected, a cavity is provided in the third slide rail 41, the rack 43 is fastened to the lower surface of the cavity, the slide frame 45 is fastened to the third motor 42, the output end of the third motor 42 is fastened to the rotating shaft 46, the outer cover of the rotating shaft 46 is provided with a first gear 44, the rotating shaft 46 is fastened to the first gear 44, the rotating shaft 46 is placed in the slide frame 45, the first gear 44 is meshed with the rack 43, and the slide frame 45 is fastened to the cutting head 5.

[0037] The third slide rail 41 is fixed between the two second sliders 33. When the second slider 33 slides up and down, the third slide rail 41 moves accordingly. The rack 43 is placed in the inner cavity of the third slide rail 41. The third motor 42 drives the rotating shaft 46 to rotate by outputting torque. The first gear 44 is sleeved on the outside of the rotating shaft 46, so the first gear 44 rotates with the rotating shaft 46. Through the engagement of the first gear 44 and the rack 43, the rotation of the first gear 44 drives the slide frame 45 to move left and right. Through the fixation of the slide frame 45 and the cutting head 5, the cutting head 5 can reach any position of the workpiece.

[0038] like Figure 5-Figure 6 As shown, the cutting head 5 includes a shell 51, an interface 52, a baffle assembly 53, an air inlet pipe 54, a nozzle 55, a collimating lens 56, a focusing lens 57 and a photoelectric tube 58. The shell 51 is fastened to the sliding frame 45, the upper end of the shell 51 is connected to the interface 52, an air inlet pipe 54 is provided on the outside of the shell 51, the shell 51 and the air inlet pipe 54 are connected, and the lower end of the shell 51 is connected to the nozzle 55.

[0039] One side of the shell 51 is fixed on the slide frame 45, so the slide frame 45 can drive the cutting head 5 to move. The laser beam is emitted from the interface 52 into the shell 51 and emitted from the nozzle 55 to the workpiece to cut the workpiece. The auxiliary gas enters from the air inlet pipe 54 and is transported to the inside of the shell 51 to blow off the waste slag generated during cutting.

[0040] like Figure 5-Figure 6 As shown, the shell 51 is provided with a first inner cavity 511, a second inner cavity 512 and a third inner cavity 513 in sequence. The first inner cavity 511 is provided with a collimating lens 56 and a focusing lens 57 in sequence. The second inner cavity 512 is provided with a baffle assembly 53. The third inner cavity 513 is provided with a photoelectric tube 58.

[0041] The first inner cavity 511, the second inner cavity 512 and the third inner cavity 513 are arranged in sequence from top to bottom. The collimator 56 is used to convert the incident light beam into parallel light. The focusing mirror 57 is used to focus the parallel light into a focus and act on the material to be cut to melt and cut it. The baffle assembly 53 is used to block the reflected laser. The phototube 58 is used to sense the reflected laser. Before the laser is emitted, the baffle assembly 53 is opened first. When the focused light spot hits the workpiece, the surface of the workpiece will reflect the laser. At this time, the baffle assembly 53 blocks the laser reflected back to the cutting head 5 and protects the focusing mirror 57. When the laser penetrates the workpiece and moves for cutting, the cut part of the workpiece will absorb the laser. At this time, there is basically no reflected laser. The phototube 58 does not sense the reflected laser and then retracts the baffle assembly 53.

[0042] like Figure 7-Figure 8 As shown, the baffle assembly 53 includes a fourth motor 531, a driving gear 532, a driven gear 533, a fan-shaped baffle 534, a connecting frame 535, a fixed shaft 536 and a fixed plate 537. The fourth motor 531 is fastened to the housing 51. The output end of the fourth motor 531 is inserted into the housing 51. The output end of the fourth motor 531 is fastened to the driving gear 532. The driving gear 532 is meshed with the driven gear 533. The driven gear 533 is provided with a plurality of groups of sliding grooves 5331, a plurality of A group of sliding grooves 5331 is sleeved on the outside of the fixed shaft 536, and several groups of sliding grooves 5331 are slidably connected to the fixed shaft 536. Both ends of the fixed shaft 536 are firmly connected to the wall of the second inner cavity 512. A connecting frame 535 is provided on one side of the sliding groove 5331. One end of the connecting frame 535 is hinged to the driven gear 533, and the other end of the connecting frame 535 is hinged to the fan-shaped baffle 534. Several groups of fan-shaped baffles 534 are hinged to the fixed plate 537, and the fixed plate 537 is firmly connected to the wall of the second inner cavity 512.

[0043] When cutting begins and the laser has not penetrated the workpiece, the photoelectric tube 58 senses the reflected laser, and the fourth motor 531 outputs torque to drive the driving gear 532 to rotate counterclockwise. The driving gear 532 is engaged with the driven gear 533, and when the driven gear 533 is driven to rotate clockwise, the sliding groove 5331 slides along the fixed shaft 536. The two ends of the connecting frame 535 are respectively hinged with the driven gear 533 and the fan-shaped baffle 534. When the driven gear 533 rotates, it drives the connecting frame 535 to rotate, and at the same time, the other end of the fan-shaped baffle 534 is rotated. It is hinged to the fixed plate 537, so that several groups of fan-shaped baffles 534 rotate and close. At this time, the fan-shaped baffles 534 tend to close, and when the fan-shaped baffles 534 are closed to the minimum range, there is still a light hole in the middle of the baffle, so that the middle laser beam can pass through and illuminate the workpiece. When the laser penetrates the workpiece, the photoelectric tube 58 cannot sense the reflected laser. The fourth motor 531 outputs torque to drive the drive gear 532 to rotate clockwise, and the fan-shaped baffles 534 rotate in the opposite direction, so that the fan-shaped baffles 534 tend to open, and the light hole gradually increases.

[0044] like Figure 2-Figure 4 As shown, the chassis 6 includes a shell 61, an air intake channel 62 and an air outlet pipe 63. One end of the air outlet pipe 63 is connected to the air intake channel 62, and the other end of the air outlet pipe 63 passes through the shell 61. The air outlet pipe 63 passes through one end of the shell 61 and is connected to the dust filter 7. A fourth inner cavity 611 is provided inside the shell 61, and the air intake channel 62 is placed inside the fourth inner cavity 611. The air intake channel 62 is provided with a fifth inner cavity 621 and an opening 622.

[0045] When cutting the workpiece, waste slag and waste gas will be generated. The waste slag and waste gas will be scattered into the inside of the shell 61 through the blowing of auxiliary gas, and will be sucked into the inside of the suction channel 62 through the opening 622, and then enter the exhaust pipe 63 from the suction channel 62, and finally be sucked into the dust removal filter 7 for filtration and then discharged into the atmosphere.

[0046] Working principle of the present invention: When laser cutting starts and the laser has not penetrated the workpiece, the photoelectric tube 58 detects the reflected laser. First, the cutting head 5 is moved above the position to be processed, and the interface 52 is connected to the laser beam for cutting. When the fourth motor 531 outputs torque to drive the driving gear 532 to rotate counterclockwise, the driven gear 533 rotates clockwise, driving the fan-shaped baffle 534 to close, and leaving a light hole in the middle. The laser hits the workpiece. Since it has not penetrated the workpiece yet, the surface of the workpiece will reflect the laser, and the fan-shaped baffle 534 will block the reflected laser. When After the laser penetrates the workpiece and moves for cutting, the workpiece absorbs the laser and no reflected laser is generated. When the phototube 58 cannot detect the reflected laser, the fourth motor 531 outputs torque to drive the drive gear 532 to rotate clockwise, and the fan-shaped baffle 534 opens and closes and returns to the initial state. Since the focusing mirror 57 focuses on the parallel light, the light path forms a cone. At this time, when the fan-shaped baffle 534 is opened, it will slightly block the light path at the edge. Therefore, after completing the function of protecting the focusing mirror 57, the fan-shaped baffle 534 needs to return to the initial position.

[0047] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A laser cutting device for high-voltage cabinet panels, characterized by: The laser cutting device comprises a workbench (1), a first module (2), a second module (3), a third module (4), a cutting head (5), a chassis (6) and a dust removal filter (7). The workbench (1) and the chassis (6) are fastened together. The first module (2) is provided with two groups, and the two groups of the first modules (2) are symmetrically arranged on both sides of the workbench (1). The two groups of the first modules (2) and the chassis (6) are fastened together. The second module (3) is provided with two groups, and the two groups of the second modules (3) are fastened together with the two groups of the first modules (2) respectively. The two groups of the second modules (3) and the third modules (4) are fastened together. The third module (4) is arranged between the two groups of the second modules (3). The third module (4) and the cutting head (5) are fastened together. The chassis (6) and the dust removal filter (7) are connected by a pipeline.

2. The laser cutting device for high-voltage cabinet panels according to claim 1, characterized in that: The workbench (1) comprises support bars (11), wherein the support bars (11) are provided in a plurality of groups, wherein the plurality of groups of support bars (11) are fastened to the chassis (6), and the upper ends of the plurality of groups of support bars (11) are serrated.

3. The laser cutting device for high-voltage cabinet panels according to claim 2, characterized in that: The first module (2) comprises a first slide rail (21), a first motor (22) and a first slider (23); the first slide rail (21) is fixedly connected to the chassis (6); the first slide rail (21) is fixedly connected to the first motor (22); the first slide rail (21) is slidably connected to the first slider (23); and the first slider (23) is fixedly connected to the second module (3).

4. The laser cutting device for high-voltage cabinet panels according to claim 3, characterized in that: The second module (3) comprises a second slide rail (31), a second motor (32) and a second slider (33); the second slide rail (31) and the first slider (23) are fastened together; the second slide rail (31) and the second motor (32) are fastened together; the second slide rail (31) and the second slider (33) are slidably connected; and the second slider (33) and the third module (4) are fastened together.

5. The laser cutting device for high-voltage cabinet panels according to claim 4, characterized in that: The third module (4) includes a third slide rail (41), a third motor (42), a rack (43), a first gear (44), a slide frame (45) and a rotating shaft (46). The two ends of the third slide rail (41) are respectively fastened to the second slider (33). The third slide rail (41) and the slide frame (45) are slidably connected. A cavity is provided in the third slide rail (41). The rack (43) is fastened to the lower surface of the cavity. The slide frame (45) is fastened to the third motor (42). The output end of the third motor (42) is fastened to the rotating shaft (46). The outer sleeve of the rotating shaft (46) is provided with a first gear (44). The rotating shaft (46) is fastened to the first gear (44). The rotating shaft (46) is placed in the slide frame (45). The first gear (44) and the rack (43) are engaged. The slide frame (45) and the cutting head (5) are fastened to each other.

6. The laser cutting device for high-voltage cabinet panels according to claim 5, characterized in that: The cutting head (5) includes a housing (51), an interface (52), a baffle assembly (53), an air inlet pipe (54), a nozzle (55), a collimating lens (56), a focusing lens (57) and a photoelectric tube (58). The housing (51) and the sliding frame (45) are fastened together. The upper end of the housing (51) is connected to the interface (52). The outside of the housing (51) is provided with an air inlet pipe (54). The housing (51) and the air inlet pipe (54) are connected by pipeline. The lower end of the housing (51) is connected to the nozzle (55).

7. The laser cutting device for high-voltage cabinet panels according to claim 6, characterized in that: A first inner cavity (511), a second inner cavity (512), and a third inner cavity (513) are sequentially provided inside the housing (51); a collimating lens (56) and a focusing lens (57) are sequentially provided inside the first inner cavity (511); a baffle assembly (53) is provided inside the second inner cavity (512); and a photoelectric tube (58) is provided inside the third inner cavity (513).

8. The laser cutting device for high-voltage cabinet panels according to claim 7, characterized in that: The baffle assembly (53) includes a fourth motor (531), a driving gear (532), a driven gear (533), a fan-shaped baffle (534), a connecting frame (535), a fixed shaft (536) and a fixed plate (537). The fourth motor (531) is fastened to the housing (51). The output end of the fourth motor (531) is inserted into the housing (51). The output end of the fourth motor (531) is fastened to the driving gear (532). The driving gear (532) and the driven gear (533) are meshed. The driven gear (533) is provided with a plurality of groups of sliding grooves (5331). The sliding groove (5331) is sleeved on the outside of the fixed shaft (536), and several groups of the sliding grooves (5331) are slidably connected to the fixed shaft (536). Both ends of the fixed shaft (536) are tightly connected to the wall of the second inner cavity (512). A connecting frame (535) is provided on one side of the sliding groove (5331), one end of the connecting frame (535) is hinged to the driven gear (533), and the other end of the connecting frame (535) is hinged to the fan-shaped baffle (534). Several groups of the fan-shaped baffles (534) are hinged to the fixed plate (537), and the fixed plate (537) is tightly connected to the wall of the second inner cavity (512).

9. The laser cutting device for high-voltage cabinet panels according to claim 8, characterized in that: The chassis (6) includes a shell (61), an air intake channel (62) and an air outlet pipe (63), one end of the air outlet pipe (63) is connected to the air intake channel (62) pipeline, the other end of the air outlet pipe (63) passes through the shell (61), and one end of the air outlet pipe (63) passes through the shell (61) and is connected to the dust filter (7) pipeline, a fourth inner cavity (611) is provided inside the shell (61), the air intake channel (62) is placed inside the fourth inner cavity (611), and the air intake channel (62) is provided with a fifth inner cavity (621) and an opening (622).