Plasma cutting device for building construction steel

Abstract

The invention discloses a building construction steel plasma cutting device, and belongs to the technical field of steel laser cutting, the building construction steel plasma cutting device comprises a base, the top end of the base is fixedly connected with an L-shaped supporting plate, a plasma laser cutter is assembled on the L-shaped supporting plate, and a feeding assembly is assembled at the top end of the base; a steel clamping assembly is assembled on the upper surface of the base, a molten slag recycling groove is formed in the upper surface of the base, the feeding assembly comprises a supporting rod, a support plate and a supporting plate, the supporting rod is fixed to the upper surface of the base, a steel containing plate is fixed to the top end of the supporting rod, and the support plate is fixedly connected to the top end of the base. A motor is fixedly embedded in the support plate, and an output shaft of the motor is fixedly connected with a rotating rod. The steel cutting device is used for solving the problems that during cutting, steel needs to be conveyed manually, manpower is consumed, and the efficiency is low.

Description

Technical Field

[0001] The present application relates to the technical field of steel laser cutting, and in particular to a plasma cutting device for steel in construction. Background Art

[0002] At present, my country is vigorously promoting the application of laser cutting. Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the cutting of the workpiece. Laser cutting is one of the thermal cutting methods and is widely used in the field of steel cutting. It has the characteristics of no burrs on the cut surface and high precision.

[0003] Since the steel needs to be transported manually during cutting, it not only consumes manpower but also has low efficiency. In addition, the laser cutting machine needs to continuously flip the steel during cutting, which makes the operation steps cumbersome, time-consuming and labor-intensive, and the work efficiency is low. At the same time, the slag accumulation left after the steel is cut cannot be cleaned up in time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a plasma cutting device for steel materials in construction, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present application provides a plasma cutting device for steel materials in construction, comprising a base, an L-shaped support plate is fixedly connected to the top of the base, a plasma laser cutter is mounted on the L-shaped support plate, a feeding assembly is mounted on the top of the base, a steel clamping assembly is mounted on the upper surface of the base, a slag recovery groove is provided on the upper surface of the base, the feeding assembly comprises a support rod, a bracket plate, and a support plate, the support rod is fixed to the upper surface of the base, a steel placing plate is fixed to the top of the support rod, the bracket plate is fixedly connected to the top of the base, and a motor is embedded in the bracket plate The output shaft of the motor is fixedly connected to a rotating rod, and the front end and rear end of the rotating rod are fixedly connected to a gear 1, and the support plate is fixedly connected to the top of the base, and two groups of support plates are provided in total, and the side surfaces of each group of the support plates are rotatably connected to two gears 2 that are synchronously meshed with the gear 1, and the interior of each of the gears 2 is penetrated and rotatably connected to a rotating rod, one end of each rotating rod is slidably connected to the side surface of the support plate, and the other end of each rotating rod is fixedly connected to a square plate, and a feeding plate is fixed to the top of each two square plates, and the top of each feeding plate is equipped with a height-adjustable dividing rod.

[0006] Preferably, the interior of the feed plate is equipped with a plurality of sleeves adapted to the partition rods, and the interior of each sleeve is elastically slidably connected to the partition rod via a spring.

[0007] Preferably, a guide rod is fixed to the side surface of each of the partition bars, and an L-shaped groove matching the guide rod is opened on the side surface of each of the sleeves.

[0008] Preferably, a semicircular groove is provided in the middle of the transverse area of ​​the L-shaped groove.

[0009] Preferably, the steel clamping assembly includes a turntable, a support block, and a fixed plate, the turntable is fixedly connected to the outer side of any one of the rotating rods close to one side of the steel clamping assembly, the fixed plate is fixedly connected to the top of the base, a three-way hydraulic warehouse is penetrated and fixedly connected inside the fixed plate, one end of the interior of the three-way hydraulic warehouse is slidably connected to hydraulic rod 1 through a piston, and the other two ports inside the three-way hydraulic warehouse are slidably connected to hydraulic rod 2 through a piston, the upper surfaces of the two hydraulic rods 2 are both equipped with one-way gear groups, the support block is fixedly connected to the top of the base, and there are two groups of support blocks in total, the tops of the two groups of support blocks are fixedly connected to annular support blocks, the sides of the two groups of annular support blocks are slidably connected to annular gear rings, and the interiors of the two groups of annular gear rings are provided with movable clamps.

[0010] Preferably, the one-way gear group is composed of a plurality of teeth hinged on the upper surface of hydraulic rod 2 and a spring 2 fixed between the teeth and hydraulic rod 2, each of the teeth is unidirectionally meshed with the annular gear ring, and hydraulic rod 1 is located on the motion trajectory of the turntable.

[0011] Preferably, a cleaning assembly is mounted on the top of the base.

[0012] Preferably, the cleaning assembly includes L-shaped support rods, and there are two groups of L-shaped support rods in total. One end of the two groups of L-shaped support rods are respectively fixedly connected to the bottom end of the two groups of hydraulic rods, and the other end of the two groups of L-shaped support rods is fixedly connected with a cleaning shovel, and the movement direction of the cleaning shovel is toward the slag recovery tank.

[0013] The benefits of this application are: (1) The present application solves the problem that the steel needs to be manually transported when cutting the steel, which is labor-intensive and inefficient, by providing a support plate, a bracket plate, a motor, a gear 1, a rotating rod, a gear 2, a square plate, a feeding plate, a dividing rod, a rotating rod, a support rod, a steel placement plate, a sleeve, an L-shaped groove, a guide rod, and a spring 1.

[0014] (2) The present application solves the problem in the background art that when using laser cutting, the steel needs to be continuously turned over, which results in cumbersome operation steps, time-consuming and labor-intensive, and low work efficiency, by providing a turntable, a support block, an annular support block, a fixed plate, a three-way hydraulic bin, a hydraulic rod 1, a hydraulic rod 2, teeth, a spring 2, an annular tooth ring, and a clamp.

[0015] (3) The present application solves the problem in the background art that slag accumulation generated after steel cutting cannot be cleaned up in time by providing a slag recovery trough, a cleaning shovel and an L-shaped support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 It is the overall device structure diagram of the present invention; Figure 2 It is a structural diagram of the feeding assembly of the present invention; Figure 3 It is a partial structural diagram of the feeding assembly of the present invention; Figure 4 It is a cross-sectional structural diagram of a feeding plate of the present invention; Figure 5 It is a structural diagram of the casing of the present invention; Figure 6 It is a cross-sectional structural diagram of the casing of the present invention; Figure 7 It is a structural diagram of the steel material clamping assembly of the present invention; Figure 8 It is a partial structural diagram of the steel material clamping assembly of the present invention; Fig. 9 It is a partial structural diagram of the steel material clamping assembly of the present invention; Fig.10 It is a structural diagram of the cleaning component of the present invention.

[0017] In the above figure, 1. Base; 2. L-shaped support plate; 3. Plasma laser cutter; 4. Feeding assembly; 5. Steel clamping assembly; 6. Cleaning assembly; 401. Support plate; 402. Bracket plate; 403. Motor; 404. Gear 1; 405. Rotating rod; 406. Gear 2; 407. Square plate; 408. Feeding plate; 409. Separating rod; 410. Rotating rod; 411. Support rod; 412. Steel placing plate; 413. Sleeve Tube; 414, L-shaped groove; 415, guide rod; 416, spring one; 501, turntable; 502, support block; 503, annular support block; 504, fixed plate; 505, three-way hydraulic bin; 506, hydraulic rod one; 507, hydraulic rod two; 508, teeth; 509, spring two; 510, annular gear ring; 511, fixture; 601, slag recovery trough; 602, cleaning shovel; 603, L-shaped support rod. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0020] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0024] See also Figure 1-Figure 9The present embodiment provides a plasma cutting device for steel materials in construction, including a base 1, the base 1 is used to support the device, so that the device can be conveniently used, an L-shaped support plate 2 is fixedly connected to the top of the base 1, the function of the L-shaped support plate 2 is to support the operation of the plasma laser cutter 3, the plasma laser cutter 3 is mounted on the L-shaped support plate 2, a feeding assembly 4 is mounted on the top of the base 1, a steel clamping assembly 5 is mounted on the upper surface of the base 1, a slag recovery groove 601 is provided on the upper surface of the base 1, the feeding assembly 4 includes a support rod 411, the function of the support rod 411 is to support a steel placing plate 412, so as to facilitate the transportation of steel materials, a bracket plate 402, the bracket plate 402 is used to support the motor 40 3 is used for support, so as to facilitate the use of motor 403. Support plate 401 and support rod 411 are fixed on the upper surface of base 1. A steel placing plate 412 is fixed on the top of support rod 411. Bracket plate 402 is fixedly connected to the top of base 1. Motor 403 is embedded in the interior of bracket plate 402. The output shaft of motor 403 can drive rotating rod 410 to rotate. The output shaft of motor 403 is fixedly connected to rotating rod 410. Rotating rod 410 can drive gear 1 404, which is fixedly connected at the front and rear ends, to rotate synchronously. Gear 1 404 is fixedly connected at the front and rear ends of rotating rod 410. Support plate 401 is fixedly connected to the top of base 1. The function of two sets of support plates 401 is to divide The support plates 401 are provided with two groups, and the sides of each group of support plates 401 are rotatably connected to two gears 406 that mesh synchronously with the gears 1 404. The interior of each gear 2 406 is penetrated by and rotatably connected to a rotating rod 405. One end of each rotating rod 405 is slidably connected to the side of the support plate 401, and the other end of each rotating rod 405 is fixedly connected to a square plate 407, so that when the rotating rod 405 rotates, the square plate 407 can also be driven to rotate. The other end of each rotating rod 405 is fixedly connected to a square plate 407. When the two square plates 407 rotate, they can respectively drive the two groups of feeding plates 408 to move. A feeding plate 408 is fixed on the top of each two square plates 407. The top of each feeding plate 408 is equipped with a height-adjustable dividing rod 409. The function of the dividing rod 409 is to separate the steel materials to be transported to prevent confusion during the transportation of the steel materials. The interior of the feeding plate 408 is equipped with multiple sets of sleeves 413 that are compatible with the dividing rod 409. The function of the sleeve 413 is to store the dividing rod 409 after it slides in, and the interior of each sleeve 413 is elastically slidably connected with the dividing rod 409 through a spring 416. When the dividing rod 409 slides downward, the spring 416 will be elastically compressed. When the dividing rod 409 slides downward to a certain length and then rotates, the spring 416 will no longer be compressed. A guide rod 415 is fixed on the side of each dividing rod 409.The function of the guide rod 415 is to enable the partition rod 409 to move along the shape of the L-shaped groove 414 under the cooperation of the guide rod 415 and the L-shaped groove 414. The side of each sleeve 413 is provided with an L-shaped groove 414 adapted to the guide rod 415. The L-shaped groove 414 enables the guide rod 415 to move along the direction. A semicircular groove is provided in the middle of the transverse area of ​​the L-shaped groove 414. The function of the semicircular groove is that when the partition rod 409 drives the guide rod 415 to slide downward to a certain distance and then rotates, the guide rod 415 can be engaged with the semicircular groove, so that the partition rod 409 9 can be fixed, the steel clamping assembly 5 includes a turntable 501, a turntable 501 support block 502, and a fixed plate 504. The turntable 501 is fixedly connected to the outer side of any one of the rotating rods 405 close to one side of the steel clamping assembly 5. The function of the turntable 501 is to trigger the hydraulic rod 506 when the turntable 501 rotates. The fixed plate 504 is fixedly connected to the top of the base 1. The function of the fixed plate 504 is to use the three-way hydraulic bin 505 to provide a supporting effect. The interior of the fixed plate 504 is penetrated and fixedly connected with the three-way hydraulic bin 505. The use effect of the three-way hydraulic bin 505 is that when the hydraulic rod 506 is affected When force is applied, the other two ports inside the three-way hydraulic warehouse 505 are connected to the hydraulic rod 2 507 through piston sliding for pushing out. One end of the interior of the three-way hydraulic warehouse 505 is connected to the hydraulic rod 1 506 through piston sliding. The other two ports inside the three-way hydraulic warehouse 505 are connected to the hydraulic rod 2 507 through piston sliding. The upper surfaces of the two hydraulic rods 2 507 are equipped with one-way gear groups. The support block 502 is fixedly connected to the top of the base 1. The function of the two groups of support blocks 502 is to support the two groups of annular support blocks 503. There are two groups of support blocks 502 in total. The top of the two groups of support blocks 502 Both are fixedly connected with an annular support block 503, and the sides of the two groups of annular support blocks 503 are slidably connected with an annular toothed ring 510, and the inside of the two groups of annular toothed rings 510 are provided with movable clamps 511, and the function of the movable clamps 511 is to clamp the steel transported on the steel placing plate 412 after sliding onto the movable clamps 511, and the one-way clamping gear group is composed of a plurality of teeth 508 hinged on the upper surface of the hydraulic rod 2 507 and a spring 2 509 fixed between the teeth 508 and the hydraulic rod 2 507, and each tooth 508 is unidirectionally meshed with the annular toothed ring 510, and the hydraulic rod 1 506 is located on the motion track of the turntable 501.

[0025] Working principle: When in use, first place the steel to be cut on the steel placing plate 412, then start the motor 403, the start of the motor 403 can drive the output shaft of the motor 403 to rotate, when the output shaft of the motor 403 rotates, it can drive the rotating rod 410 to follow the synchronous rotation, when the rotating rod 410 rotates, it can drive the gears 404 at the front and rear ends of the rotating rod 410 to follow the rotating rod 410 to do synchronous rotation, the two sets of gears 404 When the two gears 404 rotate, each set of gears 1 404 is in meshing state with the two sets of gears 2 406. Therefore, when the two sets of gears 1 404 rotate, the two sets of gears 2 406 can also rotate. At the same time, each two sets of gears 2 406 drive the rotating rod 405. The two sets of rotating rods 405 are fixed with square plates 407. Therefore, when each set of two square plates 407 moves, it can drive the feeding plate 408 fixed with the square plates 407 to follow the synchronous movement. A plurality of groups of partition rods 409 are arranged on the top of the feeding plate 408, so when the two groups of feeding plates 408 move, the partition rods 409 can be driven to move accordingly, and when the feeding plates 408 drive the partition rods 409 to move, the steel materials to be cut placed on the steel material placement plate 412 can be transported in equal amounts. When the steel materials to be cut are transported to the slope of the steel material placement plate 412 by the feeding plates 408 driving the partition rods 409, the steel materials to be cut can slide into the movable clamp 511. At the same time, the separator rod 409 can be pressed downward. When the separator rod 409 is pressed to a certain distance, the separator rod 409 can be rotated. At this time, the separator rod 409 can drive the guide rod 415 fixed on the side to move synchronously. When the separator rod 409 drives the guide rod 415 to slide downward inside the sleeve 413, since the sleeve 413 has an L-shaped groove 414, the separator rod 409 drives the guide rod 415 to move along the direction of the L-shaped groove 414 opened on the sleeve 413. When the dividing rod 409 moves to a certain distance and rotates, the dividing rod 409 can drive the guide rod 415 to follow the synchronous rotation. When it rotates a certain distance, the spring 416 can be elastically compressed when the dividing rod 409 slides downward. At this time, the pressure on the dividing rod 409 is released. Under the action of the spring 416's own resilience, the dividing rod 409 can drive the guide rod 415 to slide upward. At this time, the guide rod 415 is connected with the semicircular groove on the sleeve 413, so that the wind partition rod is fixed inside the sleeve 413. Through this operation, the distance between the dividing rods 409 and the dividing rods 409 on the feeding plate 408 can be changed, so as to adapt to steels of different sizes and improve the use efficiency. When the rotating rod 405 rotates, it can drive the turntable 501 to follow the synchronous rotation.When the turntable 501 rotates, the hydraulic rod 1 506 can be squeezed during the rotation. When the hydraulic rod 1 506 is squeezed, the liquid pressure inside the three-way hydraulic chamber 505 increases, so that the two sets of hydraulic rods 2 507 can be pushed out. When the two sets of hydraulic rods 2 507 are pushed out, the teeth 508 on the two sets of hydraulic rods 2 507 are respectively meshed with the two sets of annular toothed rings 510, so that when the two sets of hydraulic rods 2 507 are pushed out, the two sets of annular toothed rings 510 can be rotated to a certain angle. At the same time, when the turntable 501 rotates, the hydraulic rod 1 506 is squeezed. 01 When the hydraulic rod 1 506 is not squeezed during the rotation process, the two groups of hydraulic rods 2 507 will rebound. Due to the action of spring 2 509, the two annular gear rings 510 will not rotate back. Therefore, the hydraulic rod 1 506 is squeezed reciprocally, so that the two groups of hydraulic rods 2 507 are pushed out reciprocatingly, and the two groups of annular gear rings 510 rotate. At the same time, the movable clamp 511 clamps the steel to be cut. At this time, the ion laser cutting machine is started to completely cut the steel to be cut. Example

[0026] See also Figure 1-Figure 10 A cleaning assembly 6 is assembled on the top of the base 1. The cleaning assembly 6 includes an L-shaped support rod 603. There are two groups of L-shaped support rods 603. The function of the two groups of L-shaped support rods 603 is to make the cleaning shovel 602 and the two groups of hydraulic rods 507 work in conjunction. One end of the two groups of L-shaped support rods 603 is respectively fixedly connected to the bottom ends of the two groups of hydraulic rods 507, and the other ends of the two groups of L-shaped support rods 603 are fixedly connected with a cleaning shovel 602. The function of the cleaning shovel 602 is to shovel away the slag generated after cutting and allow the slag to enter the slag recovery tank 601 for cleaning and recovery. The movement direction of the cleaning shovel 602 is toward the slag recovery tank 601.

[0027] Working principle: When the two groups of hydraulic rods 507 make reciprocating motion, they can drive the two groups of L-shaped support rods 603 to follow and make synchronous reciprocating motion. At the same time, the L-shaped support rods 603 drive the cleaning shovel 602 to make synchronous reciprocating linear motion, so that the slag produced by the cleaning shovel 602 after the steel to be cut is cut can be cleaned by the cleaning shovel 602.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plasma cutting device for steel materials for construction, comprising a base (1), the top of the base (1) being fixedly connected to an L-shaped support plate (2), the L-shaped support plate (2) being equipped with a plasma laser cutter (3), the top of the base (1) being equipped with a feeding assembly (4), the upper surface of the base (1) being equipped with a steel material clamping assembly (5), and the upper surface of the base (1) being provided with a slag recovery groove (601); It is characterized in that The feeding assembly (4) comprises a support rod (411), a support plate (402), and a support plate (401); the support rod (411) is fixed to the upper surface of the base (1); a steel material placement plate (412) is fixed to the top of the support rod (411); the support plate (402) is fixedly connected to the top of the base (1); a motor (403) is embedded in the support plate (402); an output shaft of the motor (403) is fixedly connected to a rotating rod (410); a front end and a rear end of the rotating rod (410) are fixedly connected to a gear 1 (404); and the support plate (401) is fixedly connected to the top of the base (1). The support plates (401) are provided in two groups in total. The side surfaces of each group of the support plates (401) are rotatably connected to two gear 2s (406) that are synchronously meshed with gear 1 (404). A rotating rod (405) penetrates and is rotatably connected to the interior of each gear 2 (406). One end of each rotating rod (405) is slidably connected to the side surface of the support plate (401). The other end of each rotating rod (405) is fixedly connected to a square plate (407). A feeding plate (408) is fixedly connected to the top of each of the two square plates (407). The top of each feeding plate (408) is equipped with a height-adjustable partition rod (409).

2. A plasma cutting device for steel materials for construction according to claim 1, characterized in that: The feed plate (408) is internally equipped with a plurality of sets of sleeves (413) adapted to the partition rod (409), and the interior of each sleeve (413) is elastically slidably connected to the partition rod (409) via a spring 1 (416).

3. A plasma cutting device for steel materials for construction according to claim 2, characterized in that: A guide rod (415) is fixed on the side of each of the partition bars (409), and an L-shaped groove (414) matching the guide rod (415) is formed on the side of each of the sleeves (413).

4. A plasma cutting device for steel materials for construction according to claim 3, characterized in that: A semicircular slot is provided in the middle of the transverse region of the L-shaped slot (414).

5. The plasma cutting device for construction steel according to claim 1, characterized in that: The steel clamping assembly (5) comprises a rotating disk (501), a supporting block (502), and a fixing plate (504); the rotating disk (501) is fixedly connected to the outer side of any one of the rotating rods (405) close to one side of the steel clamping assembly (5); the fixing plate (504) is fixedly connected to the top of the base (1); a three-way hydraulic chamber (505) is penetrated and fixedly connected to the interior of the fixing plate (504); one end of the interior of the three-way hydraulic chamber (505) is slidably connected to a hydraulic rod 1 (506) via a piston; the interior of the three-way hydraulic chamber (505) is connected to a hydraulic rod 1 (506) via a piston; The other two ports are both slidably connected to hydraulic rods 2 (507) via pistons, and the upper surfaces of the two hydraulic rods 2 (507) are both equipped with one-way latching gear groups. The support blocks (502) are fixedly connected to the top of the base (1), and there are two groups of support blocks (502). The tops of the two groups of support blocks (502) are both fixedly connected to annular support blocks (503), and the sides of the two groups of annular support blocks (503) are both slidably connected to annular gear rings (510), and movable clamps (511) are provided inside the two groups of annular gear rings (510).

6. A plasma cutting device for steel materials for construction according to claim 5, characterized in that: The one-way latching gear group is composed of a plurality of teeth (508) hinged on the upper surface of hydraulic rod 2 (507) and spring 2 (509) fixed between the teeth (508) and hydraulic rod 2 (507), each of the teeth (508) is unidirectionally meshed with an annular tooth ring (510), and hydraulic rod 1 (506) is located on the motion trajectory of the rotating disk (501).

7. The plasma cutting device for steel materials for construction according to claim 1, characterized in that: The top end of the base (1) is equipped with a cleaning assembly (6).

8. The plasma cutting device for steel materials for construction according to claim 7, characterized in that: The cleaning assembly (6) comprises an L-shaped support rod (603), wherein two groups of the L-shaped support rod (603) are provided, one end of the two groups of the L-shaped support rod (603) are respectively fixedly connected to the bottom end of the two groups of hydraulic rods (507), and the other end of the two groups of the L-shaped support rod (603) is fixedly connected to a cleaning shovel (602), and the movement direction of the cleaning shovel (602) is toward the slag recovery tank (601).

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