A laser drilling apparatus

Abstract

The application discloses a kind of laser trepanning devices, including host computer, and cooperate the laser cutting head of host computer, cable is connected between the host computer and the laser cutting head, further including support device, vertical lifting device is installed by the support device, the part cut down on plate is lifted after passing through the vertical lifting device and separates from main plate, rotary device is rotationally equipped by the vertical lifting device, the laser cutting head is installed by the rotary device, after the rotary device revolves around the vertical lifting device, the laser cutting head is completed trepanning after revolving on the surface of main plate, the host computer is installed by the support device, pull wire device is installed by the support device, the cable is clamped by the pull wire device, the cable passes through the support device;The device can be moved trepanning, meet the need of large trepanning, and facilitate separation of waste.

Description

TECHNICAL FIELD

[0001] The present application relates to a laser drilling device. BACKGROUND

[0002] Laser cutting is that the horizontal laser beam emitted by the laser is changed into a vertical downward laser beam by a 45° total reflection mirror, and then focused by a lens, and a very small light spot is formed at the focal point. When the light spot irradiates on the material, the material is quickly heated to the vaporization temperature, and the hole is formed by evaporation. With the movement of the light beam to the material and the blowing of the auxiliary gas (such as carbon dioxide gas, oxygen, nitrogen, etc.) to the molten waste, the hole is continuously formed into a very narrow (such as about 0.1mm) cutting seam, and the cutting of the material is completed.

[0003] The laser cutting equipment in the prior art is mainly divided into fixed equipment and mobile equipment. The fixed equipment adopts multi-axis driving, can complete accurate position drilling, and is mainly used for batch production and a large number of drilling needs.

[0004] The mobile equipment can move in position, and is mainly used for on-site drilling of large metal plates.

[0005] The mobile equipment in the prior art mainly includes a main machine, a cable and a laser cutting head. The plate is drilled by holding the laser cutting head. In actual operation, the operation requirement of the artificial is high. Due to the unstable holding, the cutting edge of the obtained hole is very uneven, and the post-processing workload is large.

[0006] Secondly, in this cutting mode, the cut waste is still embedded in the main plate after cutting, and it is difficult to take out.

[0007] Based on the above problems, we design a laser drilling device which can move drilling, meet the needs of large drilling, and separate the waste conveniently. SUMMARY

[0008] The technical problem to be solved by the present application is to provide a laser drilling device which can move drilling, meet the needs of large drilling, and separate the waste conveniently.

[0009] To solve the above problems, the present application adopts the following technical scheme:

[0010] A laser drilling device comprises a main machine, a laser cutting head matched with the main machine, a cable connected between the main machine and the laser cutting head, a support device, a vertical lifting device installed through the support device, a part cut from a plate lifted by the vertical lifting device and separated from the main plate, a rotary device rotatably assembled through the vertical lifting device, the laser cutting head installed through the rotary device, the laser cutting head rotated on the surface of the main plate to complete drilling after the rotary device rotates around the vertical lifting device, the main machine installed through the support device, a wire pulling device installed through the support device, the cable clamped through the wire pulling device, the cable passing through the support device, the position of the cable passing through the support device being higher than the rotary height of the rotary device, a controller connected with the vertical lifting device and the rotary device, the lifting height of the vertical lifting device and the rotary speed of the rotary device controlled through the controller, and the controller installed on the top of the main machine.

[0011] Preferably, the support device comprises a first installation platform, a second installation platform and a third installation platform, the bottom of the support device is provided with a roller at a position corresponding to the first installation platform, the main machine and the wire pulling device are both installed through the first installation platform, the second installation platform is located between the first installation platform and the third installation platform, a space for the rotary device to pass through is formed below the second installation platform, and the vertical lifting device is installed through the third installation platform.

[0012] Preferably, a counterweight is installed on the first installation platform, and the counterweight is located on the side of the main machine away from the wire pulling device.

[0013] Preferably, the vertical lifting device comprises an electric push rod, a fixed cylinder, a movable cylinder and a vacuum pump, the fixed cylinder is fixedly installed on the side of the third installation platform, the electric push rod is installed on the top of the third installation platform, the movable cylinder passes through the fixed cylinder coaxially and slides along the axis of the fixed cylinder, a connecting plate is arranged on the side of the upper part of the movable cylinder, the connecting plate connects the movable end of the electric push rod, a negative pressure suction cup is detachably installed on the lower end of the movable cylinder, a negative pressure pipe is arranged at the axis of the negative pressure suction cup, the upper end of the negative pressure pipe is closed, a connecting pipe is arranged at the position close to the upper end of the negative pressure pipe, a pressure relief valve is installed through the connecting pipe, a high-pressure air pipe is connected with the pressure relief valve, the end of the high-pressure air pipe away from the pressure relief valve is connected with the air suction end of the vacuum pump, the vacuum pump is installed on the top of the second installation platform, the rotary device is rotatably connected with the fixed cylinder, and the vacuum pump and the electric push rod are both connected with the controller.

[0014] Preferably, the outer wall of the movable cylinder is provided with air suction holes near the bottom, a pipe cap is arranged at the upper end of the movable cylinder, a negative pressure fan is installed through the pipe cap, the negative pressure fan is controlled by the controller, and the negative pressure fan is started synchronously when the laser cutting head is in the working state.

[0015] Preferably, the rotating device comprises a rotating sleeve and an outer support arranged at the outer wall of the rotating sleeve, bearings are arranged between the rotating sleeve and the fixed cylinder, a driven bevel gear is arranged at the top of the rotating sleeve, a driving motor connected to the controller is arranged at the bottom of the third mounting platform, a driving bevel gear is arranged at the output end of the driving motor, the driving bevel gear is engaged with the driven bevel gear, a sliding groove is arranged at the inner side of the outer support and vertically penetrates, guide strips are arranged at the groove walls on both sides of the sliding groove, a sliding seat is arranged in the sliding groove, a guide groove matched with the guide strips is arranged at the outer side of the sliding seat, a screw rod is rotatably arranged in the outer support, the sliding seat is provided with a threaded hole matched with the screw rod, a first driving motor driving the screw rod to rotate forward and backward is arranged at the end of the outer support away from the rotating sleeve, the first driving motor is controlled by the controller, and the laser cutting head is mounted through the sliding seat.

[0016] Preferably, a vertical stepped hole is processed at the top of the sliding seat and penetrates vertically, a vertical first guide strip is processed at the small-diameter position of the stepped hole, a sliding cylinder is slidably fitted through the stepped hole, the bottom of the sliding cylinder is connected to the laser cutting head, a limiting ring is threadedly connected to the top of the sliding cylinder, the limiting ring limits the downward sliding of the sliding cylinder, a first guide groove is arranged at the outer wall of the sliding cylinder, the lower end of the first guide groove is closed, the first guide groove is matched with the first guide strip, and the upper end of the first guide groove penetrates upwardly through the sliding cylinder; a side support is arranged at the bottom of the sliding seat, a first electric push rod is mounted through the side support, a second connecting plate is arranged at the side surface of the laser cutting head, and the movable end of the first electric push rod is fixed with the second connecting plate; the cable penetrates upwardly from the axis of the sliding cylinder.

[0017] Preferably, a mounting hole is transversely arranged at the position higher than the sliding seat on the side surface of the support device, a pipe sleeve made of elastic rubber material is mounted through the mounting hole, the two ends of the pipe sleeve are fixed with the support device, and the cable penetrates through the pipe sleeve.

[0018] Preferably, the pull wire device comprises a box body, vertical grooves are arranged at the front and rear end faces of the box body, a guide rod is arranged in the vertical grooves, a shaft and a stop block are slidingly fitted between the front and rear guide rods, a positioning screw is fitted between the stop block and the guide rod, a spring is arranged on the guide rod and acts between the stop block and the shaft, a pulley is rotatably arranged on the shaft, the cable enters from the top of the box body, passes around the pulley and then exits from the top of the box body, when the sliding seat is displaced away from the fixed cylinder, the cable is pulled out, at this time, the pulley is forced to move upward, providing a surplus for the cable to be pulled out, when the sliding seat moves toward the fixed cylinder, the pulley moves downward under the action of the spring to adapt to the retraction of the cable.

[0019] The present application has the following advantages:

[0020] The device can be moved to the construction site for on-site hole opening, meeting the need of flexible hole opening.

[0021] The device is used for hole opening of large plates, and the laser cutting head rotates along the vertical lifting device during hole opening, so that the rotation is more stable until the hole opening and cutting are completed, and then the vertical lifting device can lift the waste from the main plate to separate the waste, which is more convenient to operate.

[0022] The device has simple structure and low cost, and is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0024] Figure 1 It is a structural schematic diagram of the present application;

[0025] Figure 2 It is a partial schematic diagram of the left part of the present application;

[0026] Figure 3 It is a partial schematic diagram of the right part of the present application;

[0027] Figure 4 It is a sectional view of the negative pressure suction cup;

[0028] Figure 5 It is a perspective view of the rotating device;

[0029] Figure 6 schematic view of the cooperation of the slide and the slide tube;

[0030] Figure 7 perspective view of the stay wire device;

[0031] Figure 8 schematic view of the cutting of the present application;

[0032] Figure 9 schematic view of the separation of waste of the present application. DETAILED DESCRIPTION

[0033] All features disclosed in this specification, and / or all steps of any methods or processes disclosed in this specification, may be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0034] Any feature disclosed in this specification, unless stated otherwise, can be replaced by alternative features serving the same, equivalent or similar purpose, to achieve the same, equivalent or similar result.

[0035] In the description of the application, it is to be understood that the orientation or positional relationship indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0036] In addition, in the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0037] In the present application, unless otherwise specifically stated and limited, the terms "provided", "sleeved", "connected", "penetrated", "inserted" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Reference is made to Figure 1 , Figure 8 and Figure 9The laser drilling device shown comprises a main machine 1 and a laser cutting head 2 matched with the main machine 1, and a cable 3 connected between the main machine 1 and the laser cutting head 2, characterized in that it further comprises a support device 4, a vertical lifting device 5 installed through the support device 4, a part cut down from a plate material lifted through the vertical lifting device 5 and separated from the main plate material, a rotary device 6 assembled through the vertical lifting device 5, the laser cutting head 2 installed through the rotary device 6, the laser cutting head 2 rotating on the surface of the main plate material after the rotary device 6 rotates around the vertical lifting device 5 to complete the drilling, the main machine 1 installed through the support device 4, a pull wire device 7 installed through the support device 4, the cable 3 clamped through the pull wire device 7, the cable 3 passing through the support device 4, the position of the cable 3 passing through the support device 4 being higher than the rotary height of the rotary device 6, a controller 8 connecting the vertical lifting device 5 and the rotary device 6, the lifting height of the vertical lifting device 5 and the rotary speed of the rotary device 6 being controlled through the controller 8, and the controller 8 installed on the top of the main machine 1.

[0039] Referring to Figure 8 and Figure 9 the main plate material is A and the cut-down waste material is B.

[0040] The operation steps are as follows:

[0041] The device is pushed to the side or surface of the metal plate material to be drilled, and the vertical lifting device 5 corresponds to the center position of the position to be drilled.

[0042] The rotary device 6 adjusts the laser cutting head 2 to the required circumferential position of cutting, the vertical lifting device 5 goes down to be fixed with the main plate material A after the laser cutting head 2 moves to the position, the main machine 1 drives the laser cutting head 2 to emit laser, the rotary device 6 rotates at a constant speed along the vertical lifting device 5 to drive the laser cutting head 2 to rotate 361-365°, so that the waste material B has no connection point with the main plate material A, after the cutting is completed, the laser cutting head 2 goes up and moves outward to separate from the upper part of the waste material B, at this time, the vertical lifting device 5 adsorbs the separated waste material B and lifts the waste material B to separate from the main plate material A, a cart or other tools are used to move to the lower part of the waste material B, and then the waste material B is released, that is, the waste material taking work is completed.

[0043] After the above operation is completed, the main plate material A is moved to the next position required to be drilled to start the next drilling operation.

[0044] The main object of the device is the metal plate material with a thickness of 5 mm or less.

[0045] In the above technical solution, the downward movement of the vertical lifting device 5 is fixed with the main plate A, which can play a centering role until the waste B is completely cut off.

[0046] After the waste B is cut, it can be lifted upward by the vertical lifting device 5 to separate from the main plate A, which facilitates the waste removal work and facilitates the rapid start of the next hole opening step.

[0047] Referring to Figure 1 , Figure 2 and Figure 3 , the support device 4 includes a first mounting platform 41, a second mounting platform 42 and a third mounting platform 43. The bottom of the support device 4 is provided with a roller 44 at a position corresponding to the first mounting platform 41. The main machine 1 and the pull wire device 7 are both installed through the first mounting platform 41. The second mounting platform 42 is located between the first mounting platform 41 and the third mounting platform 43. A space is formed below the second mounting platform 42 for the rotation device 6 to pass through. The vertical lifting device 5 is installed through the third mounting platform 43.

[0048] In the above technical solution, the roller 44 is a roller 44 with self-locking ability, so as to be locked after the support device 4 is moved into position.

[0049] Referring to Figure 3 , a counterweight 99 is installed on the first mounting platform 41. The counterweight 99 is located on the side of the main machine 1 away from the pull wire device 7.

[0050] The counterweight 99 is provided to increase the stability of the support device 4, so that the movement of the laser cutting head 2 is more stable, and the cutting edge of the obtained hole is more flat.

[0051] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the vertical lifting device 5 includes an electric push rod 51, a fixed cylinder 52, a movable cylinder 53 and a vacuum pump 54, the fixed cylinder 52 is fixedly installed on the side of the third mounting platform 43, the electric push rod 51 is installed on the top of the third mounting platform 43, the movable cylinder 53 is coaxially through the fixed cylinder 52 and slides along the axial direction of the fixed cylinder 52, a connecting plate 55 is arranged at the side position of the upper part of the movable cylinder 53, the connecting plate 55 connects the movable end of the electric push rod 51, a negative pressure suction cup 56 is detachably installed at the lower end of the movable cylinder 53, a negative pressure pipe 57 is arranged at the axial center of the negative pressure suction cup 56, the upper end of the negative pressure pipe 57 is closed, a connecting pipe 58 is arranged at the position close to the upper end of the negative pressure pipe 57, a pressure relief valve 59 is installed through the connecting pipe 58, a high-pressure air pipe 510 is connected through the pressure relief valve 59, the end of the high-pressure air pipe 510 away from the pressure relief valve 59 is connected to the air suction end of the vacuum pump 54, and the vacuum pump 54 is installed on the top of the second mounting platform 42; the rotary device 6 is rotationally connected with the fixed cylinder 52, and the vacuum pump 54 and the electric push rod 51 are both connected with the controller 8.

[0052] In the technical scheme, the movable cylinder 53 is controlled to move downward along the fixed cylinder 52 by the electric push rod 51, and is moved to the position where the negative pressure suction cup 56 is adsorbed on the surface of the main plate A, at this time, the air in the negative pressure suction cup 56 is extracted by the vacuum pump 54, so that the negative pressure suction cup 56 is adsorbed and fixed with the main plate A, and the centering and fixing effect is achieved.

[0053] When the laser cutting head 2 rotates around the fixed cylinder 52 for one circle, the cutting is completed, at this time, the waste B cut down is separated, is lifted upward by the electric push rod 51, and is separated from the main plate A, so that the waste is separated, and the next hole opening operation is facilitated.

[0054] Referring to Figure 2 and Figure 4 As shown, the outer wall of the movable cylinder 53 is provided with an air suction hole 531 at the position close to the bottom, a pipe cap 532 is arranged at the upper end of the movable cylinder 53, and a negative pressure fan 533 is installed through the pipe cap 532, the negative pressure fan 533 is controlled by the controller 8, and when the laser cutting head 2 is in the working state, the negative pressure fan 533 is started synchronously.

[0055] In the process of laser cutting, waste gas may be generated, which can be discharged through the negative pressure fan 533, and in actual application, a hose can be sleeved at the air outlet position of the negative pressure fan 533 for exhaust.

[0056] Referring to Figure 2 , Figure 5 and Figure 6As shown, the rotating device 6 comprises a rotating sleeve 61 and an outer support 62 arranged at the outer wall of the rotating sleeve 61, bearings are arranged between the rotating sleeve 61 and the fixed cylinder 52, a driven bevel gear 63 is arranged at the top of the rotating sleeve 61, a driving motor 64 connected with the controller 8 is arranged at the bottom of the third mounting platform 43, a driving bevel gear 65 is arranged at the output end of the driving motor 64, the driving bevel gear 65 meshes with the driven bevel gear 63, a sliding groove 66 is arranged at the inner side of the outer support 62 and vertically penetrates, guide strips 67 are arranged at the groove walls of the sliding groove 66, a sliding seat 68 is arranged in the sliding groove 66, guide grooves 69 matched with the guide strips 67 are arranged at the outer side of the sliding seat 68, a screw rod 610 is rotatably arranged in the outer support 62, the sliding seat 68 is provided with a threaded hole matched with the screw rod 610, a first driving motor 611 driving the screw rod 610 to rotate forwardly and reversely is arranged at the end of the outer support 62 away from the rotating sleeve 61, the first driving motor 611 is controlled by the controller 8, and the laser cutting head is arranged through the sliding seat 68.

[0057] In the technical scheme, the transmission ratio of the driving bevel gear and the driven bevel gear is N:1, N=4~10, that is, the driving bevel gear rotates N times and the driven bevel gear rotates 1 time.

[0058] In the technical scheme, the rotation of the screw rod drives the displacement of the sliding seat 68, the position adjustment of the laser cutting head 2 is completed, and the laser emitting end of the laser cutting head 2 is located at the circumferential position of the required cutting hole.

[0059] After the cutting is completed, the laser cutting head 2 moves outward and is separated from the position of the hole, and the waste material is conveniently taken out upward.

[0060] In the technical scheme, the sliding of the sliding seat 68 is guided through the cooperation of the guide strips 67 and the guide grooves 69, and the sliding of the sliding seat 68 is more stable.

[0061] The first driving motor 611 is a servo motor, and the sliding position of the sliding seat 68 is conveniently controlled accurately.

[0062] The driving motor 64 is also a servo motor, and the rotation angle of the rotating sleeve 61 is conveniently controlled accurately.

[0063] Referring to Figure 2 , Figure 5 and Figure 6As shown, the top of the sliding seat 68 is processed with a vertical through stepped hole 612, the stepped hole 612 is processed with a vertical through first guide strip 633 at the small diameter position, a sliding cylinder 613 is slidably fitted through the stepped hole 612, the bottom of the sliding cylinder 613 is connected with the laser cutting head 2, the top of the sliding cylinder 613 is threadedly connected with a limiting ring 614, the limiting ring 614 limits the downward sliding of the sliding cylinder 613, a first guide groove 615 is arranged at the outer wall of the sliding cylinder 613, the lower end of the first guide groove 615 is closed, the first guide groove 615 is matched with the first guide strip 633, and the upper end penetrates the sliding cylinder 613 upward; a side support 616 is arranged at the bottom of the sliding seat 68, a first electric push rod 617 is installed through the side support 616, a second connecting plate 618 is arranged at the side surface of the laser cutting head 2, and the movable end of the first electric push rod 617 is fixed with the second connecting plate 618; the cable 3 penetrates out upward from the axis of the sliding cylinder 613.

[0064] In the technical scheme, the position of the first electric push rod 617 is adjusted, the position of the laser cutting head 2 is adjusted, the laser emitting position of the laser cutting head 2 is kept optimal relative to the position of the cut main plate A, and the cutting effect is improved.

[0065] The cable 3 for supplying power to the laser cutting head 2 penetrates through the axis of the sliding cylinder 613, and interference with the screw rod and other components is avoided.

[0066] Referring to Figure 1 and Figure 2 As shown, a mounting hole position is transversely penetrated at a position higher than the sliding seat 68 at the side surface of the support device 4, an elastic rubber material pipe sleeve 9 is installed through the mounting hole position, both ends of the pipe sleeve 9 are fixed with the support device 4, and the cable 3 penetrates through the pipe sleeve 9.

[0067] In the technical scheme, the pipe sleeve 9 with elasticity is adopted, when the outer support 62 rotates one circle, the cable 3 is pulled out and interferes with the pipe sleeve 9, therefore, the pipe sleeve 9 with elastic deformation is adopted, when the position interferes, the position retreats through the elastic deformation of the pipe sleeve 9, so that the laser cutting head 2 can complete the position movement of more than 360 degrees.

[0068] Referring to Figure 3 and Figure 7As shown, the pull cable device 7 comprises a box 71, vertical grooves 72 are correspondingly arranged at the front and rear end faces of the box 71, a guide rod 73 is arranged in the vertical grooves 72, an axle 74 and a stopper 75 are slidingly fitted between the front and rear guide rods 73, a positioning screw 755 is fitted between the stopper 75 and the guide rod 73, a spring 76 is arranged on the guide rod 73 and acts between the stopper 75 and the axle 74, a pulley 77 is rotatably arranged on the axle 74, the cable 3 is led into the top of the box 71, passes around the pulley 77 and then is led out from the top of the box 71, when the sliding seat 68 is displaced away from the fixed cylinder 52, the cable 3 is pulled out, at this time, the pulley 77 is forced to move upward, providing the cable 3 with a surplus of being pulled out, when the sliding seat 68 is moved toward the fixed cylinder 52, the pulley 77 is moved downward under the action of the spring 76, to adapt to the retraction of the cable 3.

[0069] The pull cable device 7 described above is used to keep the tension of the cable 3 as much as possible, to avoid the cable 3 from being in contact with the remaining operating components in the device after being slack and hanging, and being abraded.

[0070] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A laser drilling device, comprising a main unit (1) and a laser cutting head (2) cooperating with the main unit (1), wherein a cable (3) is connected between the main unit (1) and the laser cutting head (2), characterized in that: It also includes a support device (4), through which a vertical lifting device (5) is installed. The part cut off from the plate is lifted by the vertical lifting device (5) and detached from the main plate. A rotating device (6) is rotatably mounted on the vertical lifting device (5). The laser cutting head (2) is installed through the rotating device (6). After the rotating device (6) rotates around the vertical lifting device (5), the laser cutting head (2) completes the drilling on the surface of the main plate. The main unit (1) is installed through the support device (4). The bracket device (4) is equipped with a cable pulling device (7), the cable (3) is clamped by the cable pulling device (7), the cable (3) passes through the bracket device (4), and the position of the cable (3) passing through the bracket device (4) is higher than the rotation height of the slewing device (6). It also includes a controller (8) connecting the vertical lifting device (5) and the slewing device (6), and controls the lifting height of the vertical lifting device (5) and the rotation speed of the slewing device (6) through the controller (8). The controller (8) is installed on the top of the host (1). The support device (4) includes a first mounting platform (41), a second mounting platform (42) and a third mounting platform (43). At the bottom of the support device (4), a roller (44) is provided at the position corresponding to the first mounting platform (41). The host (1) and the pull wire device (7) are both installed through the first mounting platform (41). The second mounting platform (42) is located between the first mounting platform (41) and the third mounting platform (43). A space is formed below the second mounting platform (42) for the rotary device (6) to pass through. The vertical lifting device (5) is installed through the third mounting platform (43). The vertical lifting device (5) includes an electric push rod (51), a fixed cylinder (52), a movable cylinder (53), and a vacuum pump (54). The fixed cylinder (52) is fixedly installed on the side of the third mounting platform (43), the electric push rod (51) is installed on the top of the third mounting platform (43), the movable cylinder (53) coaxially passes through the fixed cylinder (52) and slides along the axial direction of the fixed cylinder (52), a connecting plate (55) is provided on the upper side of the movable cylinder (53), the connecting plate (55) is connected to the movable end of the electric push rod (51), and a negative pressure suction cup (56) is detachably installed at the lower end of the movable cylinder (53). A negative pressure pipe (57) is provided at the axis of the suction cup (56). The upper end of the negative pressure pipe (57) is closed. A connecting pipe (58) is provided near the upper end of the negative pressure pipe (57). A pressure relief valve (59) is installed through the connecting pipe (58). A high-pressure air pipe (510) is connected through the pressure relief valve (59). The end of the high-pressure air pipe (510) away from the pressure relief valve (59) is connected to the suction end of the vacuum pump (54). The vacuum pump (54) is installed on the top of the second mounting platform (42). The rotary device (6) is rotatably connected to the fixed cylinder (52). The vacuum pump (54) and the electric push rod (51) are both connected to the controller (8). The movable cylinder (53) has an air intake hole (531) near the bottom of its outer wall. A pipe cap (532) is provided at the upper end of the movable cylinder (53). A negative pressure fan (533) is installed through the pipe cap (532). The negative pressure fan (533) is controlled by the controller (8). When the laser cutting head (2) is in working condition, the negative pressure fan (533) starts synchronously.

2. The laser drilling device according to claim 1, characterized in that: A counterweight (99) is installed on the first mounting platform (41), and the counterweight (99) is located on the side of the host (1) away from the pull wire device (7).

3. The laser drilling device according to claim 1, characterized in that: The rotary device (6) includes a rotary sleeve (61) and an outer support (62) disposed on the outer wall of the rotary sleeve (61). A bearing is fitted between the rotary sleeve (61) and the fixed cylinder (52). A driven bevel gear (63) is disposed on the top of the rotary sleeve (61). A drive motor (64) connected to the controller (8) is installed at the bottom of the third mounting platform (43). An active bevel gear (65) is installed at the output end of the drive motor (64). The active bevel gear (65) meshes with the driven bevel gear (63). A sliding groove (66) is disposed on the inner side of the outer support (62). The sliding groove (66) extends vertically through the outer support. Guide strips (67) are provided on both sides of the groove (66). A slide block (68) is provided in the groove (66). A guide groove (69) that matches the guide strip (67) is provided on the outside of the slide block (68). A screw (610) is rotatably provided in the outer bracket (62). The slide block (68) has a threaded hole that matches the screw (610). A first drive motor (611) that drives the screw (610) to rotate forward and backward is provided at the end of the outer bracket (62) away from the rotating sleeve (61). The first drive motor (611) is controlled by the controller (8). The laser cutting head is installed through the slide block (68).

4. The laser drilling device according to claim 3, characterized in that: The top of the slide block (68) is machined with a vertically penetrating stepped hole (612). A vertically penetrating first guide strip (633) is machined at the small diameter position of the stepped hole (612). A slide cylinder (613) is slidably fitted through the stepped hole (612). The bottom of the slide cylinder (613) is connected to the laser cutting head (2). The top of the slide cylinder (613) is threadedly connected to a limit ring (614). The limit ring (614) limits the downward movement of the slide cylinder (613). A first guide groove (615) is provided on the outer wall of the slide cylinder (613). The lower end of the first guide groove (615) is closed, the first guide groove (615) cooperates with the first guide strip (633), and the upper end passes through the slide cylinder (613) upward; a side bracket (616) is provided at the bottom of the slide block (68), and a first electric push rod (617) is installed through the side bracket (616). A second connecting plate (618) is provided on the side of the laser cutting head (2), and the movable end of the first electric push rod (617) is fixed to the second connecting plate (618); the cable (3) passes through the axis of the slide cylinder (613) upward.

5. The laser drilling device according to claim 4, characterized in that: On the side of the bracket device (4), at a position higher than the slide (68), there is a horizontal mounting hole. An elastic rubber sleeve (9) is installed through the mounting hole. Both ends of the sleeve (9) are fixed to the bracket device (4), and the cable (3) passes through the sleeve (9).

6. The laser drilling device according to claim 4, characterized in that: The cable pulling device (7) includes a housing (71). Vertical grooves (72) are correspondingly provided on the front and rear ends of the housing (71). A guide rod (73) is provided within the vertical groove (72). A shaft (74) and a stop (75) are slidably fitted between the front and rear guide rods (73). A positioning screw (755) is fitted between the stop (75) and the guide rod (73). A spring (76) is provided on the guide rod (73). The spring (76) acts between the stop (75) and the shaft (74), and rotates on the shaft (74). A pulley (77) is provided. The cable (3) passes through the top of the housing (71), goes around the pulley (77), and then comes out from the top of the housing (71). When the slide (68) moves away from the fixed cylinder (52), the cable (3) is pulled out. At this time, the pulley (77) moves upward under the force, providing the cable (3) with the allowance to be pulled out. When the slide (68) moves towards the fixed cylinder (52), the pulley (77) moves downward under the action of the spring (76) to accommodate the retraction of the cable (3).

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