Plasma cutting equipment

Abstract

The utility model provides plasma cutting equipment which is used for solving the problems that in the prior art, a sectional material is subjected to thermal deformation due to high cutting temperature, and dust and smoke generated by cutting pollute the environment. Plasma cutting equipment comprises a cutting frame and a plasma cutting machine, the plasma cutting machine is connected with a waterproof cutting gun, a rotating plate is hinged to one side of the plasma cutting machine and driven by an angle motor, a sliding groove is formed in the rotating plate, and the cutting gun moves in the sliding groove through a driving device. An annular water outlet is formed in the side wall of the cutting gun and faces the cutting end of the cutting gun, and a water collecting tank is arranged below the cutting gun. According to the cutting gun, the annular water outlet is formed in the side wall of the cutting gun, a cutting area can be cooled or cleaned in the cutting process, heat and sparks generated in the cutting process can be reduced, cooling of the cutting gun and channel steel is facilitated, thermal deformation and cracks are reduced, and therefore the cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense door processing, in particular to a plasma cutting device. Background Art

[0002] In the process of making concrete air-raid door panels, the horizontal and vertical door panel steel frames need to be assembled and welded. To this end, the steel frames first need to be precisely cut to the required length and usually cut at bevels. Steel frames spliced ​​at bevels have higher structural strength.

[0003] The existing Chinese patent with application number 202223402895.0 discloses an automatic rotating cutting device for civil air defense door frames. The device controls the operation of the lifting and translation motor on the moving rail through a matching control device, thereby driving the lifting box to move horizontally, and the lifting chain in the lifting box drives the cutting box at the bottom to move up and down, so as to facilitate the adjustment of the vertical and horizontal positions of the flame knife to facilitate the cutting of the door frame rod. The above scheme has the following defects. When the flame knife performs bevel cutting, a series of complex transmission structures are required to work together, which not only reduces the cutting efficiency, but also increases the risk of equipment failure. At the same time, the high temperature of the cutting process will cause thermal deformation of the profile and even cracks, which will greatly affect the difficulty of subsequent welding. In addition, the cutting process will also generate a large amount of dust and smoke, causing environmental pollution. Utility Model Content

[0004] The utility model provides a plasma cutting device, which solves the problems in the prior art that high temperature cutting causes thermal deformation of profiles and dust and smoke generated by cutting pollute the environment.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A plasma cutting device comprises a cutting frame controlled by a lifting device, a plasma cutting machine is fixed on the cutting frame, the plasma cutting machine is connected to a waterproof cutting gun, a rotating plate is hinged on one side of the plasma cutting machine, the rotating plate is driven by an angle motor, a slide groove is arranged on the rotating plate, the cutting gun moves in the slide groove by a driving device, a side wall of the cutting gun is provided with an annular water outlet, the water outlet faces the cutting end of the cutting gun, the water outlet is connected to a water source, and a water collecting tank is arranged under the cutting gun.

[0007] Furthermore, a plurality of flipping devices are provided at both ends of the cutting device, and the flipping device includes a bearing seat, an inner ring rotates in the bearing seat, an upper platform and a lower platform are fixed on one side of the inner ring, the upper platform and the lower platform are mirror-imaged, the lower platform is connected to the lower rotating seat through a support rod, a supporting roller shaft rotates on the lower rotating seat, the upper platform is connected to the upper rotating seat through a positioning telescopic rod, the upper rotating seat is connected to a fixed roller shaft, and the side wall of the fixed roller shaft is circumferentially provided with a plurality of grooves, and one of the flipping devices is connected to a flipping motor through an outer gear ring, the outer gear ring is fixed on the side of the inner ring away from the upper platform, and the inner diameter of the outer gear ring is the same as the inner diameter of the inner ring. The flipping device allows the channel steel to be conveniently flipped to different positions for cutting, which greatly reduces the number of times the channel steel needs to be moved or repositioned during the cutting process, thereby improving the overall work efficiency.

[0008] Furthermore, the water collection pool is surrounded by return water tanks, the side wall at the top of the water collection pool is connected to the return water tank through a filter screen, a cleaning valve is provided at the bottom of the water collection pool, the water outlet is connected to the water storage tank through a shaping hose, a water pump is provided on the shaping hose, and the return water tank is connected to the water storage tank through a pipeline. This ensures the smooth flow of water, the continuity and stability of the cutting process, and reduces the cost of water treatment.

[0009] Furthermore, the driving device includes a driving motor fixed to one end of the rotating plate, the other end of the rotating plate is rotated with a driven wheel through a connecting rod, the output end of the driving motor is connected to the driven wheel through a belt, and a clamp is fixed to the side wall of the top of the cutting gun, and the clamp is clamped and fixed with the belt. The driving motor and the belt drive have the characteristics of accurate transmission ratio, smooth transmission and easy adjustment, which can ensure that the cutting gun moves according to the preset speed and path, thereby improving the cutting accuracy and repeatability.

[0010] Furthermore, the fixed roller or the supporting roller is connected with a feeding motor. Through the cooperation of the feeding motor and the fixed roller, the operator only needs to place the channel steel on the fixed roller without manual pushing, which greatly reduces the complexity and labor intensity of the operation.

[0011] Beneficial effects:

[0012] The utility model provides an annular water outlet on the side wall of the cutting gun, so that the cutting area can be cooled or cleaned during the cutting process, which can not only reduce the heat and sparks generated during cutting, but also help cool the cutting gun and the channel steel, reduce the generation of thermal deformation and cracks, and thus improve the cutting quality. The design of fixed rollers and positioning telescopic rods on multiple bearing seats ensures the stability of the channel steel during the flipping and cutting process, and reduces the cutting error caused by shaking. The grooves on the fixed rollers can limit the shaking of the channel steel, and the grooves can provide guidance and support for the channel steel, ensuring that the channel steel can maintain a stable position when passing through the fixed rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the cutting frame and the water collecting pool of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the turning device of the utility model;

[0017] Figure 4 for Figure 2 A local enlarged schematic diagram of the middle A;

[0018] Figure 5 It is a cross-sectional view of the water collection pool of the utility model.

[0019] Among them: 1. cutting frame, 2. cutting machine, 3. rotating plate, 4. slide, 5. water outlet, 6. water collecting tank, 7. turning device, 8. bearing seat, 9. inner ring, 10. upper platform, 11. lower platform, 12. lower rotating seat, 13. supporting roller, 14. upper rotating seat, 15. fixed roller, 16. outer gear ring, 17. return water tank, 18. cleaning valve, 19. water reservoir, 20. driven wheel, 21. driving motor, 22. clamp, 23. belt, 24. groove, 25. feeding motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1 and 2As shown, the embodiment of the utility model provides a plasma cutting device, including a cutting frame 1 controlled by a lifting device, a plasma cutting machine 2 is fixed on the cutting frame 1, and the plasma cutting machine 2 is connected to a waterproof cutting gun. A rotating plate 3 is hinged on one side of the plasma cutting machine 2, and the rotating plate 3 is driven by an angle motor 4. A slide groove is provided on the rotating plate 3, and the cutting gun moves in the slide groove through a driving device. The side wall of the cutting gun is provided with an annular water outlet 5, and the water outlet 5 faces the cutting end of the cutting gun. The water outlet 5 is connected to a water source, and a water collection tank 6 is provided below the cutting gun. The waterproof cutting gun can be a cutting gun used by the underwater plasma cutting machine 2, or other cutting guns with waterproof performance. The lifting device can be a lifting telescopic rod, or a bevel gear screw lifting device. As long as the cutting frame 1 can be lifted and lowered, the plasma cutting machine 2, the waterproof cutting gun, the lifting telescopic rod and the bevel gear screw lifting device are all prior art.

[0022] During use, the angle required for cutting is adjusted by the angle motor 4, and the position where the channel steel is required to be cut is placed below the plasma cutting machine 2. For example, when the right-angled side of the door frame needs to be produced, one short side of the channel steel is used as the top surface to be perpendicular to the cutting gun, and the angle between the rotating plate 3 and the channel steel is adjusted to 45 degrees, and the plasma cutting machine 2 is started. At the same time, the cutting gun is moved along the set angle by the driving device, and the cutting area is surrounded by the annular water outlet 5. In order to effectively reduce the temperature of the cutting area, the water flow surrounds the cutting area through the annular water outlet 5, and the water flow can continuously flush the cutting area, and at the same time absorb the smoke generated by the cutting, so as to achieve the effect of overheating the plate and reducing the generation of smoke. The water flow flows into the cleaning pool under the action of gravity, and the impurities such as debris generated by the cutting can be flushed into the water collection pool 6 by the water flow. When the short plates on both sides of the channel steel are cut, the channel steel is turned over, and at the same time, the rotating plate 3 is driven by the angle motor 4 to rotate horizontally to be perpendicular to the fixed channel steel, so that the cutting gun can cut the channel steel horizontally.

[0023] The cutting device is controlled by a lifting telescopic rod, so that the height of the cutting frame 1 can be adjusted as needed, suitable for materials of different thicknesses and sizes. The water collection tank 6 allows the waste and polluted water generated during the cutting process to be collected and treated in a centralized manner, while also avoiding potential damage to the equipment and the environment caused by the polluted water and waste.

[0024] like Figure 3As shown, a plurality of flipping devices 7 are provided at both ends of the cutting device, and the flipping device 7 includes a bearing seat 8, an inner ring 9 rotates in the bearing seat 8, an upper platform 10 and a lower platform 11 are fixed on one side of the inner ring 9, the upper platform 10 and the lower platform 11 are mirror-imaged, the lower platform 11 is connected to a lower rotating seat 12 through a support rod, a supporting roller 13 rotates on the lower rotating seat 12, the upper platform 10 is connected to an upper rotating seat 14 through a positioning telescopic rod, the upper rotating seat 14 is connected to a fixed roller 15, and a plurality of grooves 24 are provided on the circumferential side wall of the fixed roller 15, and one of the flipping devices 7 is connected to a flipping motor through an outer gear ring 16, and the outer gear ring 16 is fixed on the side of the inner ring 9 away from the upper platform 10. The inner diameter of the outer gear ring 16 is the same as the inner diameter of the inner ring 9, and the flipping motor can be a stepping motor or a servo motor.

[0025] During use, in order to facilitate the flipping of the channel steel, the channel steel is passed between the support roller 13 and the fixed roller 15. When the channel steel is supported by multiple fixed rollers, it can be stably supported. At the same time, the positioning telescopic rod allows the fixed roller to press the channel steel to prevent the channel steel from shaking during the cutting process. Then the outer gear ring 16 is driven by the flipping motor to rotate the inner ring 9 of the bearing seat 8. The inner ring 9 of the bearing seat 8 drives the channel steel to rotate through the support roller 13 and the fixed roller 15. The rotation of the channel steel allows the cutting gun to approach the channel steel to prevent the cutting distance from increasing, thereby reducing the cutting capacity. The design of multiple fixed rollers and positioning telescopic rods on the bearing seat 8 ensures the stability of the channel steel during the flipping and cutting process, and reduces the cutting error caused by shaking. The presence of the positioning telescopic rod allows the fixed roller 15 to be close to the channel steel and then cooperate with the groove 24, so that even when facing channel steels of different specifications or shapes, stable clamping can be achieved. The connection between the outer gear ring 16 and the flipping motor ensures that the position of the channel steel is accurate during the flipping process, providing good preparation for the subsequent cutting process. The shaking of the channel steel can be limited by providing a plurality of grooves 24, and these grooves 24 cooperate with the surface of the channel steel to form a guide and support, ensuring that the channel steel can maintain a stable position when passing through the fixed roller 15. The plurality of grooves 24 can fix channel steels or other profiles of different specifications, thereby improving the adaptability of the device.

[0026] like Figure 1 and 5 As shown, the water collection pool 6 is surrounded by a return water trough 17, the side wall at the top of the water collection pool 6 is connected to the return water trough 17 through a filter screen, a cleaning valve 18 is provided at the bottom of the water collection pool 6, the water outlet 5 is connected to the water storage tank 19 through a shaped hose, a water pump is provided on the shaped hose, and the return water trough 17 is connected to the water storage tank 19 through a pipeline. The shaped hose, the cleaning valve 18 and the water pump are all prior art.

[0027] During the cutting process, the water flow from the water outlet 5 enters the water collecting tank 6, and the impurities in the water sink to the bottom of the water collecting tank 6 under the action of gravity. The water flow continues to accumulate in the water collecting tank 6, and finally flows into the return water tank 17 through the filter screen. The water can be roughly filtered through the filter screen and the water collecting tank 6 to prevent the pipe from being blocked by impurities. The water flows into the reservoir 19 after being collected by the return water tank 17. When more water evaporates due to the heat of cutting, a certain amount of water can be added to the reservoir 19. The water flow can be reused through the reservoir 19, and the cost required for water treatment is reduced. When there are more impurities at the bottom of the water collecting tank 6, the impurities at the bottom of the water collecting tank 6 are discharged by opening the cleaning valve 18 at the bottom of the water collecting tank 6. By recycling water, the demand for fresh water resources is reduced. The design of the filter screen and the water collecting tank 6 prevents pipeline blockage, ensures the stable operation of the system, and reduces the cost of water treatment. The filter design in the cleaning tank can effectively prevent impurities from entering the return tank 17 and the water storage tank 19, thereby avoiding clogging of the pipeline.

[0028] like Figure 4 As shown, the driving device includes a driving motor 21 fixed at one end of the rotating plate 3, and the other end of the rotating plate 3 is rotated with a driven wheel 20 through a connecting rod. The output end of the driving motor 21 is connected to the driven wheel 20 through a belt 23. A clamp 22 is fixed to the side wall of the top of the cutting gun, and the clamp 22 is clamped and fixed with the belt 23. The clamp 22 can fix the belt 23 to the cutting gun. The form of the clamp 22 is not limited, as long as it can meet the clamping and fixing of the belt 23 and the cutting gun. The driving motor 21 can be a stepping motor or a servo motor. By adjusting the speed and direction of the driving motor 21, the moving speed and direction of the cutting gun can be accurately controlled. The cutting gun can be quickly replaced or the position of the cutting gun can be adjusted through the clamp 22, and the cutting gun can be firmly connected with the belt 23 during the rotation process, which avoids the sliding or displacement of the cutting gun when the cutting gun is running at high speed, and further improves the stability and safety of the cutting process.

[0029] like Figure 3 As shown, the fixed roller 15 or the supporting roller 13 is connected to a feeding motor 25. The fixed roller is rotated by the feeding motor 25, and the groove 24 on the side wall of the roller can provide more friction for the channel steel, so that the channel steel can be automatically and continuously fed, reducing the need for manual pushing of the channel steel, making the cutting process more automated and efficient.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plasma cutting device, comprising a cutting frame (1) controlled by a lifting device, a plasma cutting machine (2) being fixed on the cutting frame (1), characterized in that: The plasma cutting machine (2) is connected to a waterproof cutting gun. A rotating plate (3) is hinged on one side of the plasma cutting machine (2). The rotating plate (3) is driven by an angle motor (4). A slide groove is provided on the rotating plate (3). The cutting gun moves in the slide groove through a driving device. A circular water outlet (5) is provided on the side wall of the cutting gun. The water outlet (5) faces the cutting end of the cutting gun. A water collecting tank (6) is provided below the cutting gun.

2. The plasma cutting device according to claim 1, characterized in that: A plurality of flipping devices (7) are provided at both ends of the cutting device. The flipping devices (7) include a bearing seat (8). An inner ring (9) rotates in the bearing seat (8). An upper platform (10) and a lower platform (11) are fixed on one side of the inner ring (9). The upper platform (10) and the lower platform (11) are arranged in a mirror image. The lower platform (11) is connected to a lower rotating seat (12) through a support rod. A supporting roller (13) rotates on the lower rotating seat (12). The upper platform (10) is connected to an upper rotating seat (14) through a positioning telescopic rod. The upper rotating seat (14) is connected to a fixed roller (15). A plurality of grooves (24) are provided on the circumferential side wall of the fixed roller (15). One of the flipping devices (7) is connected to a flipping motor through an outer gear ring (16). The outer gear ring (16) is fixed on a side of the inner ring (9) away from the upper platform (10). The inner diameter of the outer gear ring (16) is the same as the inner diameter of the inner ring (9).

3. The plasma cutting device according to claim 1, characterized in that: The water collecting pool (6) is provided with a return water trough (17) around it, the side wall at the top of the water collecting pool (6) is connected to the return water trough (17) through a filter screen, a cleaning valve (18) is provided at the bottom of the water collecting pool (6), the water outlet (5) is connected to a water storage tank (19) through a shaped hose, a water pump is provided on the shaped hose, and the return water trough (17) is connected to the water storage tank (19) through a pipeline.

4. The plasma cutting device according to claim 1, characterized in that: The driving device comprises a driving motor (21) fixed at one end of a rotating plate (3); the other end of the rotating plate (3) is provided with a driven wheel (20) for rotation via a connecting rod; the output end of the driving motor (21) is connected to the driven wheel (20) via a belt (23); a clamp (22) is fixed to the side wall of the top end of the cutting gun; the clamp (22) is fixedly connected to the belt (23).

5. The plasma cutting equipment according to claim 2, characterized in that: The fixed roller shaft (15) or the supporting roller shaft (13) is connected to a feeding motor (25).

Images