Steel plate electric arc cutting device for building construction

Abstract

The invention relates to the technical field of electric arc cutting, in particular to a steel plate electric arc cutting device for building construction, which comprises a workbench, side plates and a screw rod assembly arranged between the side plates, a shell is arranged on the outer side of the screw rod assembly, and an electric arc cutting machine is fixedly mounted at the bottom of a sliding block of the screw rod assembly. One side of the electric arc cutting machine is connected with a cleaning assembly through an adjusting assembly, the cleaning assembly comprises a first cleaning part, the bottom end of the first cleaning part is connected with a second cleaning part, and the cleaning assembly is slidably connected to the shell through a guide mechanism; the sides, close to the electric arc cutting machine, of the first cleaning piece and the second cleaning piece are connected with side wall polishing pieces. According to the electric arc cutting machine, linkage of the electric arc cutting machine and the cleaning assembly is achieved, cutting, cleaning, polishing and deburring treatment of a steel plate is completed on the premise that no extra power source needs to be added, and meanwhile potential safety hazards of workers are further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of arc cutting, and more specifically, to a steel plate arc cutting device for construction. Background Art

[0002] A steel plate arc cutting device for construction uses the arc generated between the electrode and the steel plate (the temperature can reach 3000 - 15000 °C) to locally melt the steel plate to form a cut, and at the same time, compressed air or plasma gas is used to blow away the molten slag. It is applicable to scenarios such as building steel structures and special-shaped plates, and is especially good at processing conductive metal materials such as carbon steel and stainless steel.

[0003] A Chinese patent with the publication number CN117444356B discloses a bellows arc cutting device, which includes a discharge needle, a fixing plate, a pressure head housing, a pressure head inner liner, a sealing component, and an elastic member. This invention can achieve the follow-up movement of the discharge needle with the cutting part, and can cut the bellows using the existing cutting table, which can reduce the performance requirements for the cutting table. At the same time, both the pressure head housing and the pressure head inner liner can protect the discharge needle, and can prevent the discharge needle from being damaged due to collision.

[0004] A Chinese patent with the publication number CN116252022B discloses an arc cutting machine for earthquake rescue, which includes a gun head seat, an air inlet hole I, a ceramic sleeve, and a cutting nozzle. When the cooling air flow enters the inner cavity of the ceramic sleeve and impacts the fan blades, the rotating seat drives the deflecting magnet to rotate continuously. During the rotation of the deflecting magnet, a repulsive (attractive) reaction occurs with the magnet seats at different positions, causing the magnet seats to drive the extrusion block to penetrate (move away from) the inner cavity of the cutting nozzle. The inner cavity space of the cutting nozzle becomes smaller (larger), compressing (inhaling) the gas in the inner cavity of the cutting nozzle. The density of the ionized gas in the inner cavity of the cutting nozzle increases, increasing the gas ionization amount per unit time.

[0005] The above-mentioned and similar prior arts can, to a certain extent, solve the cutting effect on the material. However, the existing arc cutting devices usually need to first complete surface cleaning (such as oil stains and oxide layers) manually or through an independent workstation, and then start the cutting process. This step-by-step operation leads to an extended processing cycle, and the manual intervention link is prone to introducing the risk of secondary pollution. After cutting, usually only the burrs on the upper surface are processed, and the bottom surface needs to be processed by a robotic arm or manually flipping the steel plate. The steel plate flipping link not only causes scratches on the surface of the workpiece, but may also scratch the operator. In addition, the arc cutting device and the cleaning component mostly use independent motors for driving, which increases a certain amount of energy consumption and the frequency of equipment fault maintenance.

[0006] In view of such a situation, the present invention provides a steel plate arc cutting device for building construction, aiming to clean the steel plate while cutting it, and also capable of cleaning the burrs generated on both end faces of the steel plate and grinding the cutting section of the steel plate, so as to reduce the influence of impurities on the cutting quality and the influence of burrs on the sealing performance and assembly accuracy of the steel plate, and at the same time avoid potential safety hazards brought by burrs to the staff. Summary of the Invention

[0007] In response to the above problems, the present application provides a steel plate arc cutting device for building construction, which solves the problems in the prior art mentioned in the above background art that it cannot directly complete cleaning and grinding, and requires additional manpower for cleaning, etc.

[0008] The technical solution adopted by the present invention to solve its technical problems is: a steel plate arc cutting device for building construction, including a workbench, side plates, and a lead screw assembly arranged between the side plates. A housing is provided outside the lead screw assembly. An arc cutting machine is fixedly installed at the bottom of the slider of the lead screw assembly. One side of the arc cutting machine is connected to a cleaning component through an adjustment component. The cleaning component is slidably connected to the housing through a guiding mechanism. The cleaning component includes a first cleaning part. The top end of the first cleaning part is fixedly connected to the guiding mechanism. The bottom end of the first cleaning part is connected to a second cleaning part. On the side close to the arc cutting machine of the first cleaning part and the second cleaning part, there is a side wall grinding part. Transmission components are provided on both sides of the first cleaning part and the second cleaning part; the second cleaning part is configured to move along with the arc cutting machine, and is preliminarily cleaned by a cleaning roller before cutting the steel plate, and the bottom surface of the steel plate is burr-grinded by a wire brush roller after cutting the steel plate; the first cleaning part is configured to move along with the arc cutting machine, and the upper surface of the cut steel plate is burr-grinded by a wire brush roller; the side wall grinding part is configured to expand the cut steel plate through a special-shaped block and grind the cutting section by a grinding roller.

[0009] Furthermore, both the first cleaning part and the second cleaning part include a wire brush roller and a cleaning roller. The first cleaning part further includes a fixing frame, and the fixing frame is fixedly connected to the guiding mechanism. One end of the fixing frame away from the guiding mechanism is fixedly connected to a first mounting frame. The second cleaning part further includes a second mounting frame arranged at the bottom end of the first mounting frame. Wire brush rollers are symmetrically arranged inside the first cleaning part and the second cleaning part, and the cleaning roller is located between the two groups of wire brush rollers.

[0010] Furthermore, the side wall grinding part includes a special-shaped block, the upper and lower ends of the special-shaped block are respectively fixedly connected to the first mounting frame and the second mounting frame on a side close to the arc cutting machine, the grinding roller is rotatably installed inside the special-shaped block, and is symmetrically arranged about the center of the special-shaped block, the fixed block is fixedly installed on one side of the second mounting frame, the bottom end of the grinding roller is fixedly connected to a worm gear through a rotating shaft, the worm gear is meshedly connected to a worm on a side close to the second mounting frame, the worm gear is rotatably installed inside the second mounting frame, and the end of the worm gear away from the worm gear passes through the outside of the second mounting frame and is fixedly installed with a third gear, and the two ends of the connecting block are respectively fixedly installed on the first mounting frame and the second mounting frame on a side away from the special-shaped block.

[0011] Furthermore, fixing rods are symmetrically arranged inside the workbench, and placement grooves are opened inside the fixing rods.

[0012] Furthermore, the transmission assembly also includes a first planetary gear, and the first planetary gear is symmetrically arranged about the center of the first mounting frame, a first gear is fixedly connected to the side of the first planetary gear away from the first mounting frame, a sliding member is fixedly installed on the side of the first gear away from the first planetary gear, the second planetary gear is symmetrically arranged about the center of the second mounting frame, and a second gear is fixedly connected to the side of the second planetary gear away from the second mounting frame, the first rack is located at the bottom end of the shell and is symmetrically arranged about the center of the shell, the second rack is fixedly installed inside the placement groove, and adjustment members are provided at both ends of the first rack and the second rack.

[0013] Furthermore, the guide mechanism includes a connecting rod, and the connecting rod is fixedly installed inside the fixed frame, rollers are symmetrically arranged at both ends of the fixed rod, a first slide groove is opened inside the shell, and two groups are symmetrically arranged about the shell, a second slide groove is opened inside the shell, and is located below the first slide groove, two groups of the second slide groove are symmetrically arranged about the shell, and a slide rail is opened inside the second slide groove.

[0014] Furthermore, the guide mechanism is slidably connected to the first slide groove through the cooperation of the roller and the slide rail, the cleaning component is slidably connected to the second slide groove through the sliding member; the side wall polishing member is transmission-connected to the second gear through the third gear.

[0015] Furthermore, one side of the special-shaped block is set to a triangle, and the shape of the first sliding groove is set to a parallelogram.

[0016] The beneficial effects of the present invention are as follows: (1) The arc cutting device for steel plates used in construction described in the present invention connects a cleaning component to an arc cutting machine. When cutting a steel plate, the cleaning component can drive a cleaning roller along with the movement of the arc cutting machine with the help of the cooperation of a second cleaning member and a transmission component, so as to automatically clean impurities on the surface of the steel plate in the area to be cut. This avoids the tedious operation of manually cleaning the steel plate alone, thereby reducing the workload of the operator and significantly improving the efficiency of the cutting work.

[0017] (2) In the steel plate arc cutting device for building construction described in the present invention, by setting the cleaning assembly into two groups and cooperating with the adjusting mechanism and the guiding mechanism, the position can be flexibly adjusted after the steel plate cutting is completed. At this time, the first cleaning member descends to the surface of the steel plate, and the second cleaning member moves to the bottom surface of the steel plate. Subsequently, the lead screw assembly drives the arc cutting machine to reset, the special-shaped block spreads the steel plate, and at the same time, through the cooperation of the first gear, the second gear and the third gear with the transmission assembly, the grinding roller is driven to grind the cutting section of the steel plate, and the two brush wire rollers are driven to clean the burrs on the upper and lower surfaces of the steel plate respectively. This design realizes the linkage between the arc cutting machine and the cleaning assembly, and can complete a series of processes such as cutting, cleaning, grinding and deburring of the steel plate without an additional power source, and also reduces the safety hazards of the staff.

[0018] (3) In the steel plate arc cutting device for building construction described in the present invention, by setting the rotation directions of the brush wire roller and the grinding roller to be opposite to the moving direction of the arc cutting machine, the friction force with the steel plate is effectively increased, and this design further improves the grinding efficiency of the cutting section of the steel plate and the cleaning effect on both sides of the steel plate. Brief Description of the Drawings

[0019] The present invention will be further described below in conjunction with the drawings and embodiments.

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the arc cutting device provided by the present invention; Figure 2 It is a three-dimensional internal structure schematic diagram of the arc cutting device provided by the present invention; Figure 3 It is a transverse structure sectional view of the housing provided by the present invention; Figure 4 Provided by the present invention Figure 3 Local enlarged structure diagram at A; Figure 5 It is a longitudinal structure sectional view of the housing provided by the present invention; Figure 6 Provided by the present invention Figure 5 Local enlarged structure diagram at B; Figure 7 It is a structure schematic diagram of the cleaning assembly and the guiding mechanism provided by the present invention; Figure 8 Provided by the present invention Figure 7 Local enlarged structure diagram at C; Figure 9 It is a structure schematic diagram of the side wall grinding member and the transmission assembly provided by the present invention; Figure 10 It is a structure schematic diagram of the brush wire roller and the cleaning roller provided by the present invention; Figure 11Schematic diagram of the adjustment component and the cleaning component provided by the present invention.

[0021] In the figure: 1, workbench; 11, fixed rod; 12, placement groove; 2, side plate; 3, lead screw assembly; 4, housing; 5, arc cutting machine; 6, adjustment component; 7, cleaning component; 71, first cleaning member; 711, fixing bracket; 712, first mounting frame; 72, second cleaning member; 721, second mounting frame; 73, side wall grinding member; 731, special-shaped block; 732, grinding roller; 733, fixing block; 734, worm gear; 735, worm; 736, third gear; 737, connecting block; 74, transmission component; 741, first planetary gear; 742, first gear; 743, sliding member; 744, second planetary gear; 745, second gear; 746, first rack; 747, second rack; 748, adjusting member; 75, brush wire roller; 76, cleaning roller; 8, guiding mechanism; 81, connecting rod; 82, roller; 83, first chute; 831, slide rail; 84, second chute. Detailed implementation manners

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the present invention in combination with the accompanying drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the accompanying drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but do not constitute a limitation to the present invention.

[0023] Embodiment: As Figures 1-11As shown in the figure, an electric arc cutting device for steel plates in construction is provided in an embodiment of the present invention, which includes a workbench 1, side plates 2, and a lead screw assembly 3 arranged between the side plates 2. A housing 4 is provided outside the lead screw assembly 3. An electric arc cutting machine 5 is fixedly installed at the bottom of the slider of the lead screw assembly 3. One side of the electric arc cutting machine 5 is connected to a cleaning assembly 7 through an adjusting assembly 6. The cleaning assembly 7 is slidably connected to the housing 4 through a guiding mechanism 8. The cleaning assembly 7 includes a first cleaning member 71. The top end of the first cleaning member 71 is fixedly connected to the guiding mechanism 8. The bottom end of the first cleaning member 71 is connected to a second cleaning member 72. On the side of the first cleaning member 71 and the second cleaning member 72 close to the electric arc cutting machine 5, there is a side wall grinding member 73. Transmission components 74 are provided on both sides of the first cleaning member 71 and the second cleaning member 72. The second cleaning member 72 is assembled to cooperate with the electric arc cutting machine 5. Before cutting the steel plate, it is preliminarily cleaned by a cleaning roller 76. After cutting the steel plate, the bottom surface of the steel plate is deburred by a wire brush roller 75. The first cleaning member 71 is assembled to cooperate with the electric arc cutting machine 5. After cutting the steel plate, the surface of the steel plate is deburred by a wire brush roller 75. The side wall grinding member 73 is assembled to spread the cut steel plate through a special-shaped block 731 and grind the cutting section through a grinding roller 732. Since the self-weight of the steel plate is generally large, during the process of spreading the steel plate by the special-shaped block 731, the grinding roller 732 will always generate a large frictional force with the side wall of the cut steel plate until the grinding roller 732 does not contact the side wall of the steel plate, and the grinding roller 732 can rotate relative to the side wall of the steel plate, which is beneficial to forming an effective grinding effect between the two.

[0024] Specifically, the workbench 1 is used to place the steel plate. The side plates 2 are used to install the lead screw assembly 3. The housing 4 serves as a protection device to prevent the dust generated during the grinding and cleaning processes from flying everywhere, and can cooperate with the guiding mechanism 8 to drive the cleaning assembly 7 to move. The adjusting assembly 6 cooperates with the guiding mechanism 8 and the first sliding groove 83 to adjust the longitudinal position of the cleaning assembly 7. The first cleaning member 71 is used to clean the burrs on the surface of the steel plate. The second cleaning member 72 is used to clean the burrs on the bottom of the steel plate. The side wall grinding member 73 is used to spread the steel plate and clean the cutting section of the steel plate. The electric arc cutting machine 5 is used to cut the steel plate. The transmission component 74 is used to transmit power to the wire brush roller 75, the cleaning roller 76, and the grinding roller 732.

[0025] In this embodiment, both the first cleaning member 71 and the second cleaning member 72 include a wire brush roller 75 and a cleaning roller 76. The first cleaning member 71 further includes a fixing frame 711, and the fixing frame 711 is fixedly connected to the guiding mechanism 8. One end of the fixing frame 711 away from the guiding mechanism 8 is fixedly connected to a first installation frame 712. The second cleaning member 72 further includes a second installation frame 721 arranged at the bottom end of the first installation frame 712. Wire brush rollers 75 are symmetrically arranged inside the first cleaning member 71 and the second cleaning member 72, and the cleaning roller 76 is located between the two groups of wire brush rollers 75.

[0026] Specifically, the wire brush roller 75 is used to clean the burrs on both sides of the steel plate to improve the accuracy of the steel plate and prevent the burrs from scratching the staff. The cleaning roller 76 is used to clean the steel plate before the arc cutting machine 5 cuts the steel plate, so as to improve the stability and cutting accuracy of the arc. The fixing frame 711 is used to fix the guiding mechanism 8, so that the cleaning assembly 7 can move together with the arc cutting machine 5. The first mounting frame 712 and the second mounting frame 721 are used to connect the fixing frame 711 and mount the transmission assembly 74, the wire brush roller 75 and the cleaning roller 76.

[0027] In this embodiment, the side wall grinding member 73 includes a special-shaped block 731. The upper and lower ends of the special-shaped block 731 are respectively fixedly connected to one side of the first mounting frame 712 and the second mounting frame 721 close to the arc cutting machine 5. The grinding roller 732 is rotatably installed inside the special-shaped block and is symmetrically arranged about the center of the special-shaped block 731. The fixing block 733 is fixedly installed on one side of the second mounting frame 721. The bottom end of the grinding roller 732 is fixedly connected with a worm gear 734 through a rotating shaft. A worm 735 is meshed and connected to one side of the worm gear 734 close to the second mounting frame 721. The worm 735 is rotatably installed inside the second mounting frame 721, and the end of the worm 735 far from the worm gear 734 penetrates the outside of the second mounting frame 721 and is fixedly installed with a third gear 736. Both ends of the connecting block 737 are respectively fixedly installed on one side of the first mounting frame 712 and the second mounting frame 721 far from the special-shaped block 731.

[0028] Specifically, the special-shaped block 731 is used to spread the cut steel plate, so as to facilitate the subsequent cleaning of the steel plate by the cleaning assembly 7. At the same time, the special-shaped block 731 cooperates with the connecting block 737 to connect the first cleaning member 71 and the second cleaning member 72. The grinding roller 732 is used to grind the cutting section of the spread steel plate to improve the surface quality and assembly accuracy of the steel plate. The worm gear 734 cooperates with the worm 735 to transmit power through the third gear 736. The power of the transmission assembly 74 is transmitted to the grinding roller 732 by using the meshing connection between the third gear 736 and the second gear 745. The fixing block 733 is used to fix the bottom of the worm gear 734. The special-shaped block 731 is set as a triangle to facilitate spreading the steel plate.

[0029] In this embodiment, the transmission assembly 74 further includes a first planet gear 741, and the first planet gear 741 is symmetrically arranged about the center of the first mounting frame 712. A first gear 742 is fixedly connected to the side of the first planet gear 741 away from the first mounting frame 712. A sliding member 743 is fixedly installed on the side of the first gear 742 away from the first planet gear 741. The second planet gear 744 is symmetrically arranged about the center of the second mounting frame 721, and a second gear 745 is fixedly connected to the side of the second planet gear 744 away from the second mounting frame 721. The first rack 746 is located at the bottom end of the housing 4 and is symmetrically arranged about the center of the housing 4. The second rack 747 is fixedly installed inside the placement groove 12. Adjusting members 748 are provided at both ends of the first rack 746 and the second rack 747.

[0030] Specifically, the first planet gear 741 and the second planet gear 744 are used to transmit power to the brush wire roller 75 and the cleaning roller 76. At the same time, the power can be further increased through the planet gears to improve the working efficiency of the cleaning assembly 7. When the arc cutting machine 5 is reset, the first gear 742 meshes with the first rack 746 to drive the first cleaning member 71 to clean the burrs on the surface of the steel plate. The sliding member 743 can cooperate with the second sliding groove 84 to slide during the process of the arc cutting machine 5 cutting the steel plate, and at the same time, the stability of the cleaning assembly 7 can be increased. When the arc cutting machine 5 cuts the steel plate, the second gear 745 meshes with the first rack 746 to clean the impurities on the surface of the steel plate with the cleaning roller 76. When the arc cutting machine 5 is reset, it meshes with the second rack 747, and then the brush wire roller 75 can be driven to clean the burrs on the bottom surface of the steel plate. The adjusting member is used to help the gear and the rack to mesh.

[0031] In this embodiment, the guiding mechanism 8 includes a connecting rod 81, and the connecting rod 81 is fixedly installed inside the fixing frame 711. Two groups of rollers 82 are symmetrically arranged at both ends of the fixed rod 11. The first sliding groove 83 is opened inside the housing 4 and is symmetrically arranged in two groups about the housing 4. The second sliding groove 84 is opened inside the housing 4 and is located below the first sliding groove 83. The second sliding groove 84 is symmetrically arranged in two groups about the housing 4. A slide rail 831 is opened inside the second sliding groove 84.

[0032] Specifically, the connecting rod 81 is used to connect the adjusting assembly 6 and the fixing frame 711, so that the cleaning assembly 7 can adjust its longitudinal position according to the adjusting assembly 6. The roller 82 is slidably connected with the slide rail 831 to facilitate the movement of the cleaning assembly 7 according to the arc cutting machine 5. The second sliding groove 84 is used to facilitate the sliding of the cleaning assembly 7 through cooperation with the sliding member 743 when the arc cutting machine 5 cuts the steel plate.

[0033] Working principle: In the initial state, as Figure 2As shown, first place the steel plate on the surface of the workbench 1 in the required cutting direction. Then, start the arc cutting machine 5 and at the same time start the lead screw assembly 3. First, start the driving motor to drive the lead screw to rotate forward. Then, drive the slider to move linearly through the rotation of the lead screw. Further, drive the arc cutting machine 5 to move through the slider. As the arc cutting machine 5 moves, drive the cleaning assembly 7 to move through the guiding mechanism 8. First, drive the roller 82 to slide in the first chute 83 in cooperation with the slide rail 831 through the connecting rod 81. Then, the second gear 745 is meshed and connected with the first rack 746 through the adjusting member 748. Then, drive the second planet gear 744 to rotate through the rotation of the second gear 745. Then, drive the cleaning roller 76 to rotate through the rotation of the brush wire roller 75 arranged inside the second cleaning member 72. At the same time, the first cleaning member 71 slides inside the second chute 84 through the sliding member 743 installed on one side of the first gear 742. Further, as the arc cutting machine 5 moves, first clean the area to be cut on the surface of the steel plate through the cleaning roller 76. Subsequently, the arc cutting machine 5 cuts the steel plate to avoid affecting the arc stability and cutting quality due to impurities carried on the surface of the steel plate; After the arc cutting machine 5 completes the cutting of the steel plate, the arc cutting machine 5 continues to move forward, the second gear 745 disengages from the first rack 746, and then the guide mechanism 8 drives the cleaning assembly 7 to adjust longitudinally through the special shape of the first slide groove 83 and in cooperation with the second slide groove 84 and the adjustment mechanism 6, so that the first cleaning member 71 moves to the top of the steel plate and the second cleaning member 72 moves to the bottom of the steel plate, and then the driving motor reverses to drive the lead screw to reverse, and drives the arc cutting machine 5 to reset through the slider, and then drives the cleaning assembly 7 to move through the adjustment assembly 6 and the guide mechanism 8, and the connecting rod 81 The roller 82 is driven to slide inside the first slide groove 83. When it reaches the rightmost side, the first slide groove 83 will have a downward slope. The connecting rod 81 continues to move, thereby driving the sliding rod to slide inside the sleeve and compressing the spring to adjust the longitudinal position of the cleaning component 7. Then, as the cleaning component 7 moves, the first gear 742 is meshed and connected with the first rack 746 through the adjusting member 748, and the brush roller 75 arranged inside the first cleaning member 71 is driven to rotate through the first planetary gear 741. At the same time, the second gear 745 is meshed and connected with the second rack 747 through the adjusting member 748, and is meshed and connected through the second planetary gear 741. The brush roller 75 arranged inside the second cleaning member 72 is driven to rotate by the second planetary gear 744, and the third gear 736 is connected to the second gear 745, and the worm gear 734 is driven to rotate by the worm gear 735, thereby driving the grinding roller 732 to rotate. As the arc cutting machine 5 moves, the cleaning component 7 is driven to grind. First, the steel plate is spread open by the anisotropic block 731 to facilitate the cleaning component 7 to grind the steel plate, and then the cutting section of the steel plate is grinded by the grinding roller 732, and at the same time, the brush roller 75 arranged inside the first cleaning member 71 is driven to remove the burrs on the surface of the steel plate. The brush roller 75 arranged inside the second cleaning assembly 72 is driven to clean the burrs on the bottom of the steel plate. When the arc cutting machine 5 moves to the initial position, the cutting section of the steel plate can be polished. At the same time, the burrs on the upper and lower surfaces of the steel plate caused by cutting can be cleaned. Moreover, since the rotation directions of the brush roller 75 and the grinding roller 732 are opposite to the forward direction of the cleaning assembly 7, the friction between the brush roller 75, the grinding roller 732 and the steel plate is increased, and the grinding effect of the cutting section of the steel plate and the cleaning effect of the burrs on the surface of the steel plate are further improved. Furthermore, when the steel plate needs to be cut again, the connecting rod 81 is located at the leftmost side of the first slide groove 83. Then, when the arc cutting machine 5 moves, the leftmost side of the first slide groove 83 is provided with an upward slope. Then, the spring loses its force and resets, thereby driving the cleaning component 7 to adjust its longitudinal position so that the second cleaning component 72 is located on the surface of the steel plate, and then subsequent processing can be carried out.

[0034] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above-described embodiments and descriptions in the specification are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An arc cutting device for steel plates for construction, comprising a workbench (1), a side plate (2) and a screw assembly (3) arranged between the side plates (2), a housing (4) being arranged outside the screw assembly (3), an arc cutter (5) being fixedly mounted at the bottom of a slider of the screw assembly (3), a cleaning assembly (7) being connected to one side of the arc cutter (5) via an adjusting assembly (6), characterized in that: The cleaning assembly (7) is slidably connected to the housing (4) via a guide mechanism (8), the cleaning assembly (7) comprising a first cleaning member (71), the top end of the first cleaning member (71) being fixedly connected to the guide mechanism (8), the bottom end of the first cleaning member (71) being connected to a second cleaning member (72), a side of the first cleaning member (71) and the second cleaning member (72) being close to the arc cutting machine (5) being connected to a sidewall grinding member (73), and transmission members (74) being provided on both sides of the first cleaning member (71) and the second cleaning member (72); A second cleaning member (72) is arranged to move with the arc cutting machine (5), and is used for preliminary cleaning by a cleaning roller (76) before cutting the steel plate, and for grinding burrs on the bottom surface of the steel plate by a brush roller (75) after cutting the steel plate; A first cleaning member (71) is arranged to move along with the arc cutting machine (5) and to remove burrs from the upper surface of the cut steel plate by means of a brush roller (75); The side wall grinding piece is assembled to open the cut steel plate through the special-shaped block (731) and to grind the cut cross section through the grinding roller (732).

2. The arc cutting device for steel plates used in construction as claimed in claim 1, characterized in that: The first cleaning member (71) and the second cleaning member (72) are both provided with a brush roller (75) and a cleaning roller (76). The first cleaning member (71) further comprises a fixing frame (711), and the fixing frame (711) is fixedly connected to the guide mechanism (8). An end of the fixing frame (711) away from the guide mechanism (8) is fixedly connected to a first mounting frame (712). The second cleaning member (72) further comprises a second mounting frame (721) arranged at the bottom end of the first mounting frame (712). The brush rollers (75) are symmetrically arranged inside the first cleaning member (71) and the second cleaning member (72), and the cleaning roller (76) is located between the two groups of brush rollers (75).

3. The arc cutting device for steel plates used in construction as claimed in claim 1, characterized in that: The side wall grinding member comprises a special-shaped block (731), the upper and lower ends of the special-shaped block (731) are respectively fixedly connected to the first installation frame (712) and the second installation frame (721) on a side close to the arc cutting machine (5), the grinding roller (732) is rotatably mounted inside the special-shaped block (731) and is symmetrically arranged about the center of the special-shaped block (731), the fixed block (733) is fixedly mounted on one side of the second installation frame (721), the bottom end of the grinding roller (732) passes through the special-shaped block (731) and is rotatably mounted on the fixed block (733), and the outer side of the bottom end of the grinding roller (732) is fixedly connected to a worm gear (734), the worm wheel (734) is located between the special-shaped block (731) and the fixed block (733), a side of the worm wheel (734) close to the second installation frame (721) is meshingly connected with a worm (735), the worm (735) is rotatably mounted inside the second installation frame (721), and an end of the worm (735) away from the worm wheel (734) passes through the outside of the second installation frame (721) and is fixedly mounted with a third gear (736), and two ends of the connecting block (737) are respectively fixedly mounted on the first installation frame (712) and the second installation frame (721) on a side away from the special-shaped block (731).

4. The arc cutting device for steel plates used in construction as claimed in claim 1, characterized in that: The workbench (1) is symmetrically provided with fixing rods (11) inside, and a placement groove (12) is provided inside the fixing rods (11).

5. The arc cutting device for steel plates used in construction as claimed in claim 1, characterized in that: The transmission assembly (74) further comprises a first planetary gear (741), and the first planetary gear (741) is symmetrically arranged about the center of the first installation frame (712); a first gear (742) is fixedly connected to a side of the first planetary gear (741) away from the first installation frame (712); a sliding member (743) is fixedly installed to a side of the first gear (742) away from the first planetary gear (741); a second planetary gear (744) is symmetrically arranged about the center of the second installation frame (721); a second gear (745) is fixedly connected to a side of the second planetary gear (744) away from the second installation frame (721); a first rack (746) is located at the bottom end of the housing (4) and is symmetrically arranged about the center of the housing (4); a second rack (747) is fixedly installed inside the placement groove (12); and adjustment members (748) are provided at both ends of the first rack (746) and the second rack (747).

6. The arc cutting device for steel plates used in construction as claimed in claim 2, characterized in that: The guide mechanism (8) comprises a connecting rod (81), and the connecting rod (81) is fixedly mounted inside the fixing frame (711), rollers (82) are symmetrically arranged at both ends of the fixing rod (11), a first slide groove (83) is opened inside the housing (4), and two groups are symmetrically arranged with respect to the housing (4), a slide rail (831) is opened inside the first slide groove (83), and a second slide groove (84) is opened inside the housing (4) and is located below the first slide groove (83), and two groups of the second slide groove (84) are symmetrically arranged with respect to the housing (4).

7. The arc cutting device for steel plates used in construction as claimed in claim 6, characterized in that: The guide mechanism (8) is slidably connected to the first slide groove (83) through the cooperation of the roller (82) and the slide rail (831); the cleaning component (7) is slidably connected to the second slide groove (84) through the sliding member (743); and the side wall polishing member (73) is transmission-connected to the second gear (745) through the third gear (736).

8. The arc cutting device for steel plates used in construction as claimed in claim 3, characterized in that: One side of the special-shaped block (731) is configured as a triangle, and the shape of the first sliding groove (83) is configured as a parallelogram.

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