Laser cutting equipment for combined frame processing

Abstract

The present invention relates to the field of laser cutting technology, and in particular to a laser cutting device for combined frame processing, including a cutting table, a movable device, a laser head and a support assembly, a fixed block, an air hood and a guide assembly, etc.; a movable device is slidably arranged on the cutting table; a laser head is arranged on the movable device; a support assembly is arranged on the cutting table; a fixed block is arranged on the laser head; an air pipe is arranged on the fixed block; the air pipe is connected to an external pump; an air hood is rotatably connected to the lower side of the fixed block; a guide assembly is connected to the air hood; a plurality of air holes are opened on the air hood; and a filter is arranged on each air hole. The present invention realizes that the hollow workpiece is placed obliquely through the support assembly, which is conducive to the discharge of waste and sputtering (metal slag) generated by cutting from the lower part of the front end opening of the hollow workpiece, avoiding the waste and sputtering (metal slag) remaining inside the hollow workpiece and obstructing the path of the laser beam, thereby ensuring the laser cutting effect of the hollow workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a laser cutting device for processing a combined frame. Background Art

[0002] Laser cutting machine is a high-precision, high-speed material cutting equipment, widely used in many industries such as metal processing, suitable for cutting a variety of metal materials and some non-metallic materials.

[0003] When using an existing laser cutting machine to perform laser cutting on a combined frame, since the combined frame is composed of metal workpieces with different hollow structures, when laser cutting is performed on the hollow workpiece, the sputtering (metal slag) generated by the cutting is sputtered onto the cutting path of the upper part of the hollow workpiece and passes through the upper part of the hollow workpiece and then sputters into the interior of the hollow workpiece, and densely accumulates therein, obstructing the direct irradiation of the laser beam, resulting in reduced laser cutting effects on the upper and lower parts of the hollow workpiece, affecting the appearance and dimensional accuracy of the cut hollow workpiece.

[0004] Furthermore, since the support plates used to support the workpiece on the existing laser cutting machines are multiple separate long serrated plates, when the waste cut from the workpiece is located on the upper side of the support plate, the cut waste is supported by the support plate and cannot be discharged normally. When the support position of the long serrated plate for the waste deviates from the center of gravity of the waste, the waste is prone to tilt and warp on the workpiece. At the same time, since the edges of some cutting holes on the workpiece need to be corrected by secondary laser cutting after cutting is completed, the warped waste on the cutting hole is prone to obstruct the cutting path of the laser beam, resulting in the laser being unable to continue to penetrate the workpiece, affecting the cutting effect of the workpiece. Summary of the invention

[0005] In order to overcome the shortcomings of existing laser cutting machines that are unable to clean the sputtering (metal slag) accumulated inside the hollow workpiece and that are unable to allow the cut small waste to fall normally into the laser cutting machine for collection, thereby obstructing the cutting path of the laser beam and affecting the cutting effect on the workpiece, the present invention provides a laser cutting device for combined frame processing.

[0006] The technical solution is: a laser cutting equipment for combined frame processing, including a cutting table, a movable device and a laser head; a movable device is slidably arranged on the cutting table; a laser head is arranged on the movable device; it also includes a support assembly, a fixed block, an air hood and a guide assembly; a support assembly for supporting a hollow workpiece is arranged on the cutting table; a fixed block is arranged on the laser head; an air pipe is arranged on the fixed block; the air pipe is connected to an external pump; an air hood for enhancing the cutting effect is rotatably connected to the lower side of the fixed block; a guide assembly for cleaning metal slag is connected to the air hood; a plurality of air holes are opened on the air hood; and a filter is arranged on each air hole.

[0007] As a further preferred scheme, the supporting assembly includes a first slide rail, a first electric slider, a supporting frame, a second slide rail, a second electric slider and a fixed frame; a plurality of first slide rails are fixedly connected to the cutting table; each first slide rail is slidably connected to a first electric slider; all the first electric sliders are slidably connected to a supporting frame; a plurality of slide grooves are provided on the supporting frame; each first electric slider slides in the corresponding slide groove; a plurality of support plates for supporting the hollow workpiece are arranged on the supporting frame; the upper side of each support plate is arranged in a serrated shape; a plurality of second slide rails are fixedly connected to the cutting table; each second slide rail is slidably connected to a second electric slider; all the second electric sliders are slidably connected to a fixed frame; a plurality of movable grooves are provided on the fixed frame; each second electric slider slides in the corresponding movable groove; a plurality of supporting parts for supporting the hollow workpiece are arranged on the fixed frame; the upper side of each supporting part is arranged in a serrated shape, and a plurality of avoidance grooves for avoiding the support plates are arranged on the fixed frame.

[0008] As a further preferred solution, the support assembly also includes a support rod; a plurality of support rods for supporting the inclined tubular hollow workpiece are slidably connected to the support frame.

[0009] As a further preferred embodiment, the guide assembly includes a guide; a guide for guiding the airflow is fixedly connected to the laser head; the guide is arranged in a funnel shape; the upper end of the guide is higher than the air hole; the guide is located on the inner side of the air hood; and a plurality of extensions for collecting metal slag are arranged on the outer side of the guide.

[0010] As a further preferred embodiment, the guide assembly also includes a DD motor, a gear, a gear ring and a scraper block; the DD motor is fixedly connected to the fixed block; the gear is fixedly connected to the output end of the DD motor; the gear ring is fixedly connected to the upper outer side of the air hood; and the scraper block for cleaning the air holes is fixedly connected to the outer side of the guide.

[0011] As a further preferred solution, each air hole on the air hood is arranged to be inclined toward the lower outer side of the air hood.

[0012] As a further preferred solution, a collecting portion for collecting molten metal slag is provided at the lower part of the gas hood.

[0013] As a further preferred embodiment, it also includes scraping bars; a plurality of scraping bars for cleaning metal slag are fixedly connected to the outside of the gas hood.

[0014] As a further preferred solution, it also includes brushes; a plurality of brushes for enhancing the cleaning effect of the metal slag are fixedly connected to the outside of the gas hood; each brush is located between two adjacent scraping strips.

[0015] As a further preferred embodiment, a cleaning rack is also included; each support rod is fixedly connected to a cleaning rack; each cleaning rack is provided with a plurality of cleaning parts; each cleaning part is engaged with the serrated groove of the support plate and the serrated groove of the support part, and the front and rear sides of each cleaning part are arranged to be inclined.

[0016] The present invention has the following advantages: the present invention realizes that the hollow workpiece is placed at an angle through the support component, which is conducive to the discharge of waste and spatter (metal slag) generated by cutting from the lower part of the front end opening of the hollow workpiece, avoiding the waste and spatter (metal slag) from remaining inside the hollow workpiece and obstructing the path of the laser beam, thereby ensuring the laser cutting effect of the hollow workpiece.

[0017] The air hood is used to blow the spatter (metal slag) generated when cutting the upper side of the hollow workpiece to disperse it inside the hollow workpiece, so that the spatter (metal slag) can be discharged along the inclined hollow workpiece, thereby preventing the spatter (metal slag) from accumulating on the cutting path at the bottom of the hollow workpiece, thereby preventing the cutting surface at the bottom of the hollow workpiece from becoming rough.

[0018] The airflow entering the air hood is gathered by a funnel-shaped guide, which increases the airflow velocity and strength blowing to the cutting area of ​​the hollow workpiece, which is beneficial to enhance the blowing effect of the airflow on the sputtering (metal slag), further reduce the sputtering (metal slag) accumulated inside the hollow workpiece, and reduce the influence of the sputtering (metal slag) on ​​laser cutting;

[0019] Blowing out to the outside of the air hood through the air holes to the upper side of the hollow workpiece is beneficial to blowing away the sputtering (metal slag) on ​​the upper side of the hollow workpiece, reducing the adhesion of the sputtering (metal slag), and reducing the impact of impurities on the surface of the hollow workpiece on laser cutting;

[0020] The hollow workpiece is alternately supported by the support frame and the fixed frame to prevent small waste from being blocked by the support plate and tilting and warping on the hollow workpiece. When the secondary laser cutting correction is performed on the edge of the cutting hole on the hollow workpiece, the tilted and warped waste is prevented from obstructing the cutting path of the laser beam, thereby ensuring the laser cutting effect of the hollow workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the laser cutting equipment for processing the combined frame of the present invention;

[0022] Figure 2 It is a schematic diagram of the combined three-dimensional structure of the cutting table, the supporting assembly and the cleaning frame of the present invention;

[0023] Figure 3 It is a schematic diagram of a three-dimensional structure of a support assembly of the present invention;

[0024] Figure 4It is a schematic diagram of the combined three-dimensional structure of the support assembly and the cleaning frame of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the air hood, scraper strip and brush combination of the present invention;

[0026] Figure 6 It is a schematic diagram of the combined three-dimensional structure of the air hood and the guide assembly of the present invention;

[0027] Figure 7 It is a combined cross-sectional view of the air hood and guide assembly of the present invention.

[0028] Wherein: 1-cutting table, 2-movable device, 3-laser head, 4-fixed block, 4001-air pipe, 5-air hood, 5001-air hole, 5002-collecting part, 101-first slide rail, 102-first electric slider, 103-support frame, 10301-slide groove, 10302-support plate, 104-second slide rail, 105-second electric slider, 106-fixed frame, 10601-movable groove, 10602-support part, 10603-avoidance groove, 107-support rod, 201-guide, 20101-extension part, 202-DD motor, 203-gear, 204-gear ring, 205-scraping block, 301-scraping strip, 302-brush, 303-cleaning frame, 30301-cleaning part. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] like Figure 1-Figure 7 As shown, a laser cutting device for combined frame processing includes a cutting table 1, a movable device 2 and a laser head 3; the movable device 2 is slidably arranged on the cutting table 1; the laser head 3 is arranged on the movable device 2;

[0032] It also includes a supporting assembly, a fixed block 4, an air hood 5 and a guiding assembly; a supporting assembly is arranged on the cutting table 1; a fixed block 4 is arranged on the laser head 3; an air pipe 4001 is arranged on the fixed block 4; the air pipe 4001 is connected to an external pump; an air hood 5 is rotatably connected to the lower side of the fixed block 4; a guiding assembly is connected to the air hood 5; a plurality of air holes 5001 in a circular array are opened on the air hood 5; a filter is arranged on each air hole 5001.

[0033] The support assembly includes a first slide rail 101, a first electric slider 102, a support frame 103, a second slide rail 104, a second electric slider 105 and a fixed frame 106; four first slide rails 101 distributed in a rectangular shape are fixedly connected to the cutting table 1; each first slide rail 101 is slidably connected to a first electric slider 102; all first electric sliders 102 are slidably connected to a support frame 103; four rectangular slide grooves 10301 are provided on the support frame 103; each first electric slider 102 slides in the corresponding slide groove 10301; a plurality of support plates 10302 are provided on the support frame 103; each support plate 10302 is provided with a serrated upper side, It is beneficial to reduce the contact area with the hollow workpiece and prevent the hollow workpiece from adhering to the support plate 10302; four second slide rails 104 with a rectangular distribution are fixedly connected to the cutting table 1; each second slide rail 104 is slidably connected to a second electric slider 105; all second electric sliders 105 are slidably connected to a fixed frame 106; four movable grooves 10601 with a rectangular distribution are opened on the fixed frame 106; each second electric slider 105 slides in the corresponding movable groove 10601; a number of support parts 10602 are arranged on the fixed frame 106; the upper side of each support part 10602 is arranged in a serrated shape, and a number of avoidance grooves 10603 are arranged on the fixed frame 106.

[0034] The support assembly also includes a support rod 107 ; two support rods 107 are slidably connected to the support frame 103 .

[0035] The guide assembly includes a guide 201; the guide 201 is fixedly connected to the laser head 3; the guide 201 is arranged in a funnel shape; the upper end of the guide 201 is higher than the air hole 5001; the guide 201 is located inside the air cover 5; and a plurality of extension parts 20101 are arranged outside the guide 201.

[0036] The guide assembly also includes a DD motor 202, a gear 203, a gear ring 204 and a scraper block 205; the DD motor 202 is fixedly connected to the fixed block 4; the gear 203 is fixedly connected to the output end of the DD motor 202; the gear ring 204 is fixedly connected to the upper outer part of the air hood 5; and the scraper block 205 is fixedly connected to the upper outer part of the guide 201.

[0037] Furthermore, in order to clean impurities on the surface of the hollow workpiece, each air hole 5001 on the air hood 5 is arranged to be inclined toward the lower outer side of the air hood 5, which is conducive to blowing away impurities on the surface of the hollow workpiece, reducing impurity adhesion, and reducing the impact of impurities on the surface of the hollow workpiece on laser cutting.

[0038] A collecting portion 5002 is provided at the lower portion of the gas hood 5 .

[0039] When laser cutting a hollow workpiece on the combined frame, with the side where the support rod 107 is located as the front, the staff first places the hollow workpiece with both ends open on the support frame 103, and makes the openings at both ends of the hollow workpiece face the front and rear sides of the cutting table 1 respectively, and then controls the first electric slider 102 at the front of the cutting table 1 to drive the front of the support frame 103 to descend on the first slide rail 101, and at the same time controls the first electric slider 102 at the rear of the cutting table 1 to drive the rear of the support frame 103 to rise on the first slide rail 101, so that the first electric slider 102 slides in the slide groove 10301, thereby making the support frame 103 The hollow workpiece is driven to be in an inclined state with the rear higher and the front lower. While the support frame 103 is tilted, the second electric slide block 105 at the front of the cutting table 1 is controlled to drive the front of the fixed frame 106 to descend on the second slide rail 104. At the same time, the second electric slide block 105 at the rear of the cutting table 1 is controlled to drive the rear of the fixed frame 106 to rise on the second slide rail 104, so that the second electric slide block 105 slides in the movable groove 10601, thereby keeping the fixed frame 106 and the support frame 103 in an inclined state. Then the staff slides the support rod 107 at the front of the support frame 103 to support the upper part of the front end opening of the hollow workpiece, such as Figure 3 As shown, the lower opening at the front end of the hollow workpiece is opened to facilitate the subsequent discharge of waste and spatter (metal slag) cut out from the inclined lower opening at the front end of the hollow workpiece, thereby preventing the waste and spatter (metal slag) cut out from remaining in the hollow workpiece and being unable to be discharged normally, thereby preventing the residual waste and spatter (metal slag) from obstructing the path of the laser beam and ensuring the laser cutting effect on the hollow workpiece.

[0040] After the hollow workpiece is placed, the movable device 2 is controlled to drive the laser head 3 to perform laser cutting on the hollow workpiece, and a circular opening is cut on the hollow workpiece to facilitate subsequent assembly, and small waste materials that fit into the circular opening are generated. In the process of cutting the hollow workpiece, the air is blown to the upper side of the hollow workpiece through the air pipe 4001 through an external air pump to blow away the spatter (metal slag) adhering to the cutting path from the upper side of the hollow workpiece to prevent the spatter (metal slag) adhering to the cutting path from reducing the laser cutting effect on the hollow workpiece. At the same time, the cutting area is shielded by the air hood 5 to prevent the spatter blown up from the upper side of the hollow workpiece. (Metal slag) splashes inside the gas hood 5, preventing the sputtering (metal slag) from being blown to other cutting paths on the upper side of the workpiece, further reducing the impact of the sputtering (metal slag) on ​​the surface of the hollow workpiece on the laser cutting. When the airflow entering the gas hood 5 is blowing and cleaning the upper side of the hollow workpiece, part of the airflow is blown into the hollow workpiece through the gap cut on the upper side of the hollow workpiece, and the sputtering (metal slag) generated when the upper side of the hollow workpiece is cut is blown and dispersed inside the hollow workpiece. At the same time, the air hood 5 is attached to the upper side of the workpiece, so that the airflow pressure blown into the gas hood 5 is increased, and the airflow strength blown into the hollow workpiece from the cutting gap is increased. The degree of the hollow workpiece is increased, thereby enhancing the blowing effect on the sputtering (metal slag) inside the hollow workpiece, making it easier for the sputtering (metal slag) to be discharged along the inclined hollow workpiece, avoiding the sputtering (metal slag) from accumulating on the cutting path at the lower part of the hollow workpiece, thereby avoiding the cutting surface at the lower part of the hollow workpiece from becoming rough. It should be noted that the sputtering (metal slag) generated during laser cutting is tightly attached to the hollow workpiece. Therefore, it is difficult to completely separate the sputtering (metal slag) by simply tilting the hollow workpiece, resulting in the sputtering (metal slag) still gradually accumulating and affecting the cutting process. The airflow entering the gas hood 5 blows away the sputtering (metal slag) and removes the sputtering (metal slag). When spatter (metal slag) is generated by optical cutting, the airflow entering the gas hood 5 is converged through the funnel-shaped guide 201, thereby enhancing the flow rate and intensity of the airflow blown to the cutting area of ​​the hollow workpiece, which is beneficial to enhancing the blowing effect of the airflow on the spatter (metal slag), further reducing the accumulated spatter (metal slag) inside the hollow workpiece, and reducing the influence of the spatter (metal slag) on ​​laser cutting. At the same time, the high-speed blowing gas can also help cool the cutting area of ​​the hollow workpiece, reduce the heat-affected zone, thereby reducing the thermal deformation of the cutting area of ​​the hollow workpiece, and further improving the appearance and functionality of the hollow workpiece cut by laser.

[0041] When the airflow blown into the gas hood 5 is used to clean the upper side of the hollow workpiece, the sputtering (metal slag) on ​​the upper side of the hollow workpiece splashes inside the gas hood 5. Since the gas hood 5 is attached to the upper side of the hollow workpiece, although the airflow inside the gas hood 5 can blow away the sputtering (metal slag) on ​​the cutting path on the upper side of the hollow workpiece, as the cutting range increases, the sputtering (metal slag) generated by the cutting increases continuously inside the gas hood 5. The splashing sputtering (metal slag) is easy to hinder the laser beam emitted by the laser head 3, resulting in a reduction in the cutting effect of the laser head 3 on the hollow workpiece. The specific solution process is as follows:

[0042] When the airflow is blown into the gas hood 5, part of the airflow is blown out from the air hole 5001 to the outside of the gas hood 5, and the sputtering (metal slag) splashing inside the gas hood 5 is driven by the gas flow to splash toward the inner wall of the gas hood 5, and part of the airflow carries the sputtering (metal slag) and contacts the inner wall of the gas hood 5 and is guided upward by the collecting part 5002, so that the sputtering (metal slag) collides with the inner wall of the gas hood 5 and rebounds, and then the sputtering (metal slag) splashes toward the extension part 20101 and the collecting part 5002, and passes through the extension part 20101. 1 and the collecting portion 5002 block and intercept the splashing sputtering (metal slag), so that the sputtering (metal slag) is collected in the extension portion 201011 and the collecting portion 5002, avoiding the sputtering (metal slag) from splashing inside the gas hood 5, further enhancing the collection effect of the sputtering (metal slag) on ​​the upper side of the hollow workpiece, reducing the sputtering (metal slag) on ​​the upper side of the hollow workpiece, further reducing the influence of the sputtering (metal slag) on ​​laser cutting, and improving the laser cutting effect on the hollow workpiece.

[0043] When the spatter (metal slag) generated by the cutting of the upper side of the hollow workpiece is driven by the airflow to splash toward the inner wall of the gas hood 5, part of the spatter (metal slag) adheres to the filter screen at the air hole 5001, resulting in a reduction in the air flow effect. At this time, the DD motor 202 is controlled to drive the gear 203 to rotate, and then drive the gear ring 204 to rotate, so that the gas hood 5 rotates counterclockwise on the fixed block 4. During the rotation of the gas hood 5, the air hole 5001 rotates through each scraper block 205, and the scraper block 205 is used to scrape the filter screen at the air hole 5001. The adhered spatters (metal slag) are scraped off and fall into the collecting part 5002 to prevent the filter at the air hole 5001 from being blocked due to the accumulation of spatters (metal slag), thereby ensuring the air flow effect inside the gas hood 5, ensuring the collection effect of the spatters (metal slag) generated by cutting the upper side of the hollow workpiece, reducing the spatters (metal slag) spattered on the upper side of the hollow workpiece, reducing the influence of the spatters (metal slag) on ​​laser cutting, and further improving the laser cutting effect of the hollow workpiece.

[0044] The present invention alternately supports the hollow workpiece by the support frame 103 and the fixing frame 106, thereby solving the problem that the waste is tilted and warped on the hollow workpiece because the support plate 10302 is located at the lower side of the cut small waste. When the edge of the cutting hole on the hollow workpiece is corrected by secondary laser cutting, the warped waste is easy to block the cutting path of the laser beam, thereby causing the laser to be unable to continue to penetrate the hollow workpiece, thereby interrupting the cutting process. The specific operation is as follows:

[0045] When the laser head 3 cuts the hollow workpiece, the support plate 10302 tilted by the support frame 103 supports the hollow workpiece. After small waste is cut out from the lower side of the hollow workpiece, the second electric slider 105 is controlled to drive the tilted fixed frame 106 to rise in the second slide rail 104, so that the support part 10602 supports the hollow workpiece. Then, the first electric slider 102 is controlled to drive the support frame 103 to descend on the first slide rail 101, so that the support plate 10302 is separated from the lower side of the hollow workpiece, and the support plate 10302 enters the corresponding avoidance groove 10603, and the hollow workpiece is alternately supported, so that small waste that is blocked by the support plate 10302 and cannot fall normally falls into the cutting table 1, thereby preventing the small waste from being blocked by the support plate 10302 and tilting and warping on the hollow workpiece. When the secondary laser cutting correction is performed on the edge of the cutting hole on the hollow workpiece, the tilted and warped waste is prevented from obstructing the cutting path of the laser beam, thereby ensuring the laser cutting effect of the hollow workpiece.

[0046] When the support frame 103 and the fixed frame 106 alternately support the hollow workpiece to facilitate the small waste cut out from the lower side of the hollow workpiece to fall into the cutting table 1, sparks generated by some cutting will splash into the cutting gap, and the splashing sparks will carry the splashing objects (metal slag) and get stuck in the cut gap, causing the small waste to be stuck by the splashing objects (metal slag) and unable to fall into the cutting table 1 normally. At this time, the waste is blown downward by the airflow guided by the guide 201, and a downward blowing force is applied to the small waste stuck on the upper side of the hollow workpiece to blow the small waste downward to prevent the small waste from getting stuck on the upper side of the hollow workpiece, thereby avoiding affecting the secondary cutting of the upper side of the hollow workpiece. The small waste blown downward will fall from the inside of the inclined hollow workpiece toward the lower part of the opening of the hollow workpiece on the side supported by the support rod 107 into the cutting table 1, avoiding affecting the secondary cutting of the lower side of the hollow workpiece.

[0047] Example 2

[0048] On the basis of Example 1, Figure 1-Figure 5 As shown, it also includes a scraper strip 301; a plurality of scraper strips 301 in a ring array are fixedly connected to the outside of the air hood 5.

[0049] It also includes a brush 302 ; a plurality of brushes 302 are fixedly connected to the outside of the air hood 5 ; each brush 302 is located between two adjacent scraping strips 301 .

[0050] It also includes a cleaning rack 303; each support rod 107 is fixedly connected to a cleaning rack 303; each cleaning rack 303 is provided with a plurality of cleaning parts 30301; each cleaning part 30301 is engaged with the serrated grooves of the support plate 10302 and the serrated grooves of the support part 10602, and the front and rear sides of each cleaning part 30301 are arranged to be inclined to prevent the support plate 10302 and the serrated grooves on the support part 10602 from being damaged by collision with the cleaning part 30301.

[0051] When the laser cutting work is completed, the support frame 103 and the fixed frame 106 are controlled to rotate to a horizontal state, and the support plate 10302 and the support part 10602 are kept flush, and then the movable device 2 is controlled to drive the laser head 3 to descend, so that the gas hood 5 descends to between the support plate 10302 and the support part 10602, and at this time, the DD motor 202 is controlled to drive the gear 203 to rotate, so that the gas hood 5 drives the scraper 301 and the brush 302 to rotate, and the metal slag adhered to the side walls of the support plate 10302 and the support part 10602 is scraped and cleaned to prevent metal oxides or other compounds in the metal slag from remaining on the support plate 10302 and the support part 10602, and to avoid corrosion and rust of the support plate 10302 and the support part 10602, thereby extending the service life of the equipment.

[0052] After the side walls of the support plate 10302 and the support portion 10602 are cleaned, the support rod 107 is controlled to drive the cleaning frame 303 to slide on the support frame 103 and the fixed frame 106, so that the cleaning portion 30301 is inserted into the serrated grooves on the support plate 10302 and the support portion 10602, and the metal slag remaining in the serrated grooves is cleaned to prevent the metal slag from accumulating in the serrated grooves on the support plate 10302 and the support portion 10602, thereby avoiding corrosion and rust on the support plate 10302 and the support portion 10602, and further extending the service life of the equipment.

[0053] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. A laser cutting device for processing a combined frame, comprising a cutting table (1), a movable device (2) and a laser head (3); the cutting table (1) is slidably provided with the movable device (2); the laser head (3) is provided on the movable device (2); the characteristics are: The invention also comprises a support assembly, a fixed block (4), an air hood (5) and a guide assembly; a support assembly for supporting a hollow workpiece is arranged on the cutting table (1); a fixed block (4) is arranged on the laser head (3); an air pipe (4001) is arranged on the fixed block (4); the air pipe (4001) is connected to an external pump; a gas hood (5) for enhancing the cutting effect is rotatably connected to the lower side of the fixed block (4); a guide assembly for cleaning metal slag is connected to the gas hood (5); a plurality of air holes (5001) are opened on the gas hood (5); and a filter is arranged on each air hole (5001); The support assembly comprises a first slide rail (101), a first electric slider (102), a support frame (103), a second slide rail (104), a second electric slider (105) and a fixed frame (106); a plurality of first slide rails (101) are fixedly connected to the cutting table (1); each first slide rail (101) is slidably connected to a first electric slider (102); all first electric sliders (102) are slidably connected to a support frame (103); a plurality of slide grooves (10301) are provided on the support frame (103); each first electric slider (102) slides in a corresponding slide groove (10301); a plurality of support plates (10302) for supporting a hollow workpiece are provided on the support frame (103); each support plate (103 02) are all arranged in a sawtooth shape on the upper side; a plurality of second slide rails (104) are fixedly connected to the cutting table (1); a second electric slider (105) is slidably connected to each second slide rail (104); a fixed frame (106) is slidably connected to all the second electric sliders (105); a plurality of movable grooves (10601) are provided on the fixed frame (106); each second electric slider (105) slides in the corresponding movable groove (10601); a plurality of support parts (10602) for supporting the hollow workpiece are arranged on the fixed frame (106); the upper side of each support part (10602) is arranged in a sawtooth shape, and a plurality of avoidance grooves (10603) for avoiding the support plate (10302) are arranged on the fixed frame (106).

2. The laser cutting device for combined frame processing according to claim 1, characterized in that: The support assembly also includes a support rod (107); a plurality of support rods (107) for supporting the inclined tubular hollow workpiece are slidably connected to the support frame (103).

3. The laser cutting device for processing a combined frame according to claim 1, characterized in that: The guide assembly comprises a guide (201); the guide (201) for guiding an airflow is fixedly connected to the laser head (3); the guide (201) is arranged in a funnel shape; the upper end of the guide (201) is higher than the air hole (5001); the guide (201) is located on the inner side of the air hood (5); and a plurality of extension parts (20101) for collecting metal slag are arranged on the outer side of the guide (201).

4. The laser cutting device for processing a combined frame according to claim 3, characterized in that: The guide assembly further comprises a DD motor (202), a gear (203), a gear ring (204) and a scraper block (205); the DD motor (202) is fixedly connected to the fixed block (4); the gear (203) is fixedly connected to the output end of the DD motor (202); the gear ring (204) is fixedly connected to the upper part of the outer side of the air cover (5); and the scraper block (205) for cleaning the air hole (5001) is fixedly connected to the outer side of the guide (201).

5. The laser cutting device for processing a combined frame according to claim 4, characterized in that: Each air hole (5001) on the air hood (5) is arranged to be inclined toward the lower outer side of the air hood (5).

6. The laser cutting device for processing a combined frame according to claim 5, characterized in that: A collecting portion (5002) for collecting molten metal slag is provided at the lower portion of the gas hood (5).

7. The laser cutting device for processing a combined frame according to claim 6, characterized in that: It also includes scraping strips (301); a plurality of scraping strips (301) for cleaning metal slag are fixedly connected to the outside of the gas hood (5).

8. The laser cutting device for processing a combined frame according to claim 7, characterized in that: It also includes a brush (302); a plurality of brushes (302) for enhancing the cleaning effect of the molten metal slag are fixedly connected to the outside of the gas hood (5); each brush (302) is located between two adjacent scraping strips (301).

9. The laser cutting device for processing a combined frame according to claim 2, characterized in that: It also includes a cleaning frame (303); each support rod (107) is fixedly connected to a cleaning frame (303); each cleaning frame (303) is provided with a plurality of cleaning portions (30301); each cleaning portion (30301) is meshed with the sawtooth groove of the support plate (10302) and the sawtooth groove of the support portion (10602), and the front and rear sides of each cleaning portion (30301) are arranged in an inclined shape.

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