Machine head assembly of laser cutting machine

Abstract

The utility model discloses a machine head assembly of a laser cutting machine, which relates to the technical field of laser cutting machines and comprises a machine frame body and a laser cutting machine head, the machine frame body is composed of a vertical machine head frame, a lead screw and a sliding table, the lead screw is installed on one side of the vertical machine head frame, and the sliding table is connected to one side of the vertical machine head frame in a limiting and sliding mode and is in threaded connection with the lead screw in a sleeved mode. The laser cutting machine head is fixedly installed on one side of the sliding table through bolts, and a dustproof assembly is arranged on the outer side of the machine frame main body and used for providing dustproof protection operation for the machine frame main body and the main body part of the laser cutting machine head. According to the dustproof laser cutting machine head, the square corrugated pipe and the round corrugated pipe are arranged, and the cover body structure formed by the front cover and the fixed cover is matched with the square corrugated pipe and the round corrugated pipe, so that smoke dust in the cutting process can be effectively prevented from entering the inner side areas of the front cover and the fixed cover, and good dustproof operation on the screw rod, the sliding table and the laser cutting machine head main body is effectively realized.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to a head assembly of a laser cutting machine. Background Art

[0002] The laser cutting machine focuses the laser emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point. At the same time, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a slit is eventually formed in the material, thereby achieving the purpose of cutting.

[0003] When the current laser cutting machine is working, in order to prevent cutting smoke, chips and other factors from having an adverse effect on the components on the machine head, protective sheet metal parts, i.e., protective devices, are often used to surround and protect the machine head. When the laser head is cutting, only the nozzle can extend from the protective sheet metal, and the smoke and dust are blown away by high-pressure gas. However, some slag will still float upward. This part of the smoke and dust can easily enter the equipment along the protective gap on the lower side of the machine head component, resulting in a reduction in the service life of materials such as the guide rail assembly and the screw assembly on the machine head. Based on this, a laser cutting machine head assembly is provided. Utility Model Content

[0004] The purpose of the present utility model is to provide a laser cutting machine head assembly in order to solve the above-mentioned problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a laser cutting machine head assembly, comprising a frame body consisting of a vertical head frame, a screw rod, and a slide, and a laser cutting head, wherein the screw rod is mounted on one side of the vertical head frame, the slide is limitedly slidably connected to one side of the vertical head frame and is threadedly sleeved with the screw rod, the laser cutting head is fixed to one side of the slide by bolts, and a dustproof component is provided on the outside of the frame body, and the dustproof component is used to provide dustproof protection operation for the frame body and the main body of the laser cutting head;

[0006] The dustproof assembly includes a fixed cover, a front cover, a concave card plate, a limit card slot, a square corrugated pipe, a rectangular card frame and a through hole;

[0007] The fixed cover is distributed on the outside of the vertical head frame, and the front cover is connected to one side of the fixed cover by a hinge. The front cover and the fixed cover are combined to realize shielding and protection of the frame body and the main body of the laser cutting head;

[0008] The concave card plate is fixed to the bottom of the fixed cover, the limit card slot is opened on the inner side of the concave card plate, and the rectangular card frame is fixed to the top of the outer side of the square corrugated tube, and the rectangular card frame is clamped to the inner side of the limit card slot to realize the limit connection between the square corrugated tube and the concave card plate;

[0009] The through hole is opened at the bottom end of the square corrugated pipe to provide a passage space for the nozzle of the laser cutting machine head. The square corrugated pipe is used to seal the gap between the frame body and the bottom of the fixed cover.

[0010] As a further solution of the present invention: a concave connecting plate is fixed to the bottom of the slide, and a screw hole is opened at the bottom of the concave connecting plate;

[0011] A mounting hole is provided at the bottom of the square corrugated pipe with the through hole as the center. The mounting hole is vertically aligned with the screw hole. The bottom of the square corrugated pipe is connected to the concave connecting plate by a bolt passing through the mounting hole and being threadedly connected to the screw hole.

[0012] As a further solution of the present invention: a circular corrugated tube is fixed at the bottom of the inner wall of the square corrugated tube and aligned with the through hole, the outer wall diameter of the circular corrugated tube is smaller than the opening width of the concave connecting plate, and the inner wall diameter of the circular corrugated tube is larger than the maximum diameter of the laser cutting machine head nozzle.

[0013] As a further solution of the present invention: the limit card slot penetrates to one side of the opening of the concave card plate, and the sum of the heights of the fixed cover and the concave card plate matches the height of the front cover.

[0014] As a further solution of the present invention: there are multiple screw holes on the concave connecting plate, and the multiple screw holes are evenly distributed along the inner groove trajectory of the concave connecting plate, and the number and position of the mounting holes correspond one-to-one to the number and position of the screw holes.

[0015] As a further solution of the present invention: the square bellows, rectangular clamping frame, through hole, mounting hole and circular bellows are integrally formed by injection molding.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By setting up square bellows and circular bellows, and through the cover structure composed of the front cover and the fixed cover in conjunction with the square bellows and the circular bellows, smoke and dust during the cutting process can be effectively prevented from entering the inner area of ​​the front cover and the fixed cover, effectively achieving good dust-proof operation of the screw rod, slide table, and laser cutting head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a bottom view of the structure of the utility model;

[0020] Figure 3This is a schematic diagram of the disassembly of the dustproof component and the frame body of the present invention;

[0021] Figure 4 This is a schematic diagram of the disassembly of the dustproof component of the present invention;

[0022] Figure 5 This is a structural cross-sectional view of a square corrugated pipe and a circular corrugated pipe of the present invention.

[0023] In the figure: 1. Frame body; 101. Vertical head frame; 102. Screw; 103. Slide; 104. Concave connecting plate; 105. Screw hole; 2. Laser cutting head; 3. Dustproof component; 301. Fixed cover; 302. Front cover; 303. Concave card plate; 304. Limiting card slot; 305. Square bellows; 306. Rectangular card frame; 307. Through hole; 308. Mounting hole; 309. Circular bellows. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 5 In an embodiment of the present invention, a laser cutting machine head assembly includes a frame body 1 composed of a vertical head frame 101, a screw rod 102, and a slide 103, and a laser cutting head 2. The screw rod 102 is installed on one side of the vertical head frame 101, and the slide 103 is limitedly slidably connected to one side of the vertical head frame 101 and threadedly sleeved with the screw rod 102. The laser cutting head 2 is fixed to one side of the slide 103 by bolts. A dustproof component 3 is provided on the outside of the frame body 1. The dustproof component 3 is used to provide dustproof protection for the frame body 1 and the main part of the laser cutting head 2.

[0026] The dustproof assembly 3 includes a fixed cover 301, a front cover 302, a concave card plate 303, a limit card slot 304, a square corrugated tube 305, a rectangular card frame 306 and a through hole 307;

[0027] The fixed cover 301 is distributed on the outside of the vertical head frame 101, and the front cover 302 is connected to one side of the fixed cover 301 by a hinge. The front cover 302 and the fixed cover 301 cover the main body of the frame 1 and the main body of the laser cutting head 2 to provide shielding and protection;

[0028] The concave card plate 303 is fixed to the bottom of the fixed cover 301, the limiting card slot 304 is opened on the inner side of the concave card plate 303, and the rectangular card frame 306 is fixed to the top outside the square corrugated tube 305. The rectangular card frame 306 is clamped to the inner side of the limiting card slot 304 to realize the limiting connection between the square corrugated tube 305 and the concave card plate 303;

[0029] A through hole 307 is provided at the bottom end of the square bellows 305 to provide a space for the nozzle of the laser cutting head 2 to pass through. The square bellows 305 is used to seal the gap between the frame body 1 and the bottom of the fixed cover 301;

[0030] A concave connecting plate 104 is fixed to the bottom of the slide 103, and a screw hole 105 is opened at the bottom of the concave connecting plate 104;

[0031] A mounting hole 308 is formed at the bottom of the square bellows 305 with the through hole 307 as the center. The mounting hole 308 is vertically aligned with the screw hole 105. A bolt passes through the mounting hole 308 and is threadedly connected to the screw hole 105 to secure the bottom of the square bellows 305 to the concave connecting plate 104.

[0032] A circular bellows 309 is fixed at the bottom of the inner wall of the square bellows 305 aligned with the through hole 307. The outer wall diameter of the circular bellows 309 is smaller than the opening width of the concave connecting plate 104, and the inner wall diameter of the circular bellows 309 is larger than the maximum diameter of the nozzle of the laser cutting head 2.

[0033] In this embodiment: It should be supplemented that: the screw rod 102 is in a rotationally connected state with the vertical head frame 101 through the bearing base, and a guide rail for the slide 103 to limit the sliding of the vertical head frame 101 is installed on the side of the vertical head frame 101. During actual use, a driving motor for driving the screw rod 102 to rotate is installed on the upper end of the vertical head frame 101, and the vertical head frame 101 and the fixed cover 301 are connected and installed with the dual-axis linear slide module on the laser cutting machine platform (it should be noted that the traditional bolt connection method can be adopted, so the structure is the existing technology, so it is not elaborated). The vertical head frame 101 and the fixed cover 301 move synchronously, and the vertical movement of the slide 103 can be realized by driving the screw rod 102 by the driving motor. The operation of the dual-axis linear slide module can realize the XYZ three-dimensional movement operation of the laser cutting head 2, thereby realizing cutting operations of different shapes;

[0034] After the laser cutting head 2 is installed on the slide 103, the square bellows 305 can be clamped to the inner side of the limit slot 304 through the rectangular clamping frame 306 (it should be noted that the front cover 102 is in the open state at this time), and then the driving motor can be started to move the slide 103 down to the bottom end, so that the laser cutting head 2 moves to the inner side of the square bellows 305, and the nozzle of the laser cutting head 2 passes through the circular bellows 309 and the through hole 307 to the bottom of the square bellows 305, and the lower surface of the concave connecting plate 104 is in contact with the bottom of the inner wall of the square bellows 305 (it should be noted that the initial height of the circular bellows 309 is greater than the height distance from the lower surface of the laser cutting head 2 main body to the lower surface of the concave connecting plate 104, that is, at this time, the circular bellows 309 is squeezed and contracted, and the upper surface of the circular bellows 309 is in close contact with the lower surface of the laser cutting head 2 main body);

[0035] Then, a bolt is passed through the mounting hole 308 and threadedly connected to the screw hole 105, and then tightened to fix the inner wall bottom of the square bellows 305 to the concave connecting plate 104. Finally, the front cover 102 can be closed (it should be noted that the front cover 102 and the fixed cover 101 on the side away from the hinge can be connected in the closed state using a stainless steel buckle. The stainless steel buckle is a conventional structure and is not drawn or expanded).

[0036] During later use, the cover structure composed of the front cover 102 and the fixed cover 101, in conjunction with the square bellows 305 and the circular bellows 309, can effectively prevent smoke and dust during the cutting process from entering the inner area of ​​the front cover 102 and the fixed cover 101, and effectively achieve good dust-proof operation of the screw rod 102, the slide 103, and the main body of the laser cutting head 2.

[0037] Please refer to Figures 1 to 5 , the limiting card slot 304 passes through the opening side of the concave card plate 303, and the sum of the heights of the fixed cover 301 and the concave card plate 303 matches the height of the front cover 302;

[0038] There are multiple screw holes 105 on the concave connecting plate 104 , and the multiple screw holes 105 are evenly distributed along the inner notch track of the concave connecting plate 104 . The number and position of the mounting holes 308 correspond to the number and position of the screw holes 105 .

[0039] In this embodiment: by fixing the structure in which the sum of the heights of the cover 301 and the concave clamping plate 303 matches the height of the front cover 302, when the front cover 302 is closed, the openings of the concave clamping plate 303 and the limiting clamping slot 304 can be blocked, thereby achieving the fixation of the rectangular clamping frame 306. In combination with the structure in which the bolts pass through the mounting holes 308 and are screwed into the screw holes 105, the installation and fixation of the square bellows 305 can be achieved.

[0040] Please refer to Figures 1 to 5 The square bellows 305, the rectangular card frame 306, the through hole 307, the mounting hole 308, and the circular bellows 309 are integrally formed by an injection molding process.

[0041] In this embodiment, the square bellows 305 and the circular bellows 309 are integrally formed, so the production process is simple and can be easily improved and used on the basis of an existing laser cutting machine.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser cutting machine head assembly, comprising a frame body (1) consisting of a vertical head frame (101), a screw rod (102), and a slide (103), and a laser cutting head (2), wherein the screw rod (102) is mounted on one side of the vertical head frame (101), the slide (103) is limitedly slidably connected to one side of the vertical head frame (101) and is threadedly sleeved with the screw rod (102), and the laser cutting head (2) is fixed to one side of the slide (103) by bolts, characterized in that: A dustproof component (3) is provided on the outside of the frame body (1), and the dustproof component (3) is used to provide dustproof protection for the frame body (1) and the main body of the laser cutting machine head (2); The dustproof component (3) comprises a fixed cover (301), a front cover (302), a concave card plate (303), a limit card slot (304), a square corrugated tube (305), a rectangular card frame (306) and a through hole (307); The fixed cover (301) is distributed outside the vertical head frame (101), and the front cover (302) is connected to one side of the fixed cover (301) through a hinge, and the front cover (302) and the fixed cover (301) are covered to achieve shielding and protection of the frame body (1) and the main body of the laser cutting head (2); The concave card plate (303) is fixed to the bottom of the fixed cover (301), the limiting card slot (304) is opened on the inner side of the concave card plate (303), and the rectangular card frame (306) is fixed to the top outside the square corrugated tube (305), and the rectangular card frame (306) is clamped to the inner side of the limiting card slot (304) to realize the limiting connection between the square corrugated tube (305) and the concave card plate (303); The through hole (307) is opened at the bottom end of the square bellows (305) to provide a space for the nozzle of the laser cutting machine head (2) to pass through. The square bellows (305) is used to seal the gap between the frame body (1) and the bottom of the fixed cover (301).

2. A laser cutting machine head assembly according to claim 1, characterized in that: A concave connecting plate (104) is fixed to the bottom of the slide (103), and a screw hole (105) is provided at the bottom of the concave connecting plate (104); The bottom of the square corrugated tube (305) is provided with a mounting hole (308) with the through hole (307) as the center. The mounting hole (308) is vertically aligned with the screw hole (105). The bottom of the square corrugated tube (305) is connected and fixed to the concave connecting plate (104) by a bolt passing through the mounting hole (308) and being threadedly connected to the screw hole (105).

3. A laser cutting machine head assembly according to claim 2, characterized in that: A circular bellows (309) is fixed at a position where the bottom of the inner wall of the square bellows (305) is aligned with the through hole (307); the outer wall diameter of the circular bellows (309) is smaller than the opening width of the concave connecting plate (104); and the inner wall diameter of the circular bellows (309) is larger than the maximum diameter of the nozzle of the laser cutting machine head (2).

4. The laser cutting machine head assembly according to claim 1, characterized in that: The limiting slot (304) extends through one side of the opening of the concave card plate (303), and the sum of the heights of the fixed cover (301) and the concave card plate (303) matches the height of the front cover (302).

5. The laser cutting machine head assembly according to claim 2, characterized in that: There are a plurality of screw holes (105) on the concave connecting plate (104), and the plurality of screw holes (105) are evenly distributed along the inner notch track of the concave connecting plate (104). The number and position of the mounting holes (308) correspond to the number and position of the screw holes (105).

6. The laser cutting machine head assembly according to claim 3, characterized in that: The square corrugated pipe (305), the rectangular clamping frame (306), the through hole (307), the mounting hole (308), and the circular corrugated pipe (309) are integrally formed by an injection molding process.

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