A heavy-duty steel plasma cutting machine

Abstract

This invention discloses a heavy-duty steel plasma cutting machine, specifically relating to the field of plasma cutting technology. It includes a support platform with a housing fixedly connected to its upper end. A universal robotic arm is fixedly mounted on the inner surface of the housing, and a plasma spray gun connected to a plasma generator is fixedly mounted on the movable end of the universal robotic arm. Buffer and limiting structures are symmetrically arranged on the upper end of the support platform, and a slag cleaning structure is provided on the inner surface of the support platform. This heavy-duty steel plasma cutting machine utilizes L-shaped blocks and cables to drive a clamping buffer assembly for multi-directional clamping. The contact block, compression spring, and non-Newtonian fluid work together to reduce cutting deviation and improve accuracy. The slag cleaning structure, in conjunction with the support platform, achieves efficient slag cleaning. A cleaning component, a Y-shaped connecting rod, and a cleaning ring simultaneously clean the slag. A sliding block, a slag scraper, and an elliptical block vibrate and scrape away the slag. A toothed disc and abrasive disc further enhance cleaning efficiency and ensure cutting quality.

Description

Technical Field

[0001] This invention relates to the field of plasma cutting technology, and in particular to a heavy-duty steel plasma cutting machine. Background Technology

[0002] Plasma cutting technology encompasses techniques for processing materials using the heat of a high-temperature plasma arc. Its core principle is to ionize the working gas to form a high-temperature, high-energy plasma arc, which can rapidly melt or evaporate the metal at the workpiece's cut edge. In practice, plasma arc cutting technology can be divided into different methods such as general cutting and air cutting, and can use various working gases such as argon, hydrogen, nitrogen, oxygen, and air. These gases not only serve as the conductive medium for the plasma arc but also carry heat and remove molten metal from the cut edge. Plasma cutting systems typically consist of a gas supply device, power supply, and cutting torch, and are widely used in numerous industries including automotive, shipbuilding, aerospace, and metal processing.

[0003] Heavy-duty steel plasma cutting machines are specifically designed for cutting heavy steel. When cutting heavy steel, they primarily utilize the heat of a high-temperature plasma arc to locally melt the metal at the cut edge. Simultaneously, the momentum of the high-speed plasma forces this molten metal away, creating a cut to complete the cut. To achieve effective cutting of heavy steel, this equipment typically features a cutting platform capable of supporting the heavy steel and a control system that precisely controls plasma arc parameters (such as current, voltage, and gas flow rate) to ensure the stability and quality of the cutting process.

[0004] While existing heavy-duty steel plasma cutting machines possess a support platform and a system for controlling plasma arc parameters, they struggle to achieve precise multi-directional fixation of the steel using conventional structures. Heavy steel, being heavy and hard, is prone to displacement due to vibration during cutting, leading to decreased cut accuracy and impacting subsequent processing. Furthermore, the lack of a dedicated and efficient slag removal structure results in slag adhering to the support plate and drum surface. Long-term accumulation of slag can affect the normal operation of equipment components, increase maintenance difficulty, and potentially interfere with subsequent cuts, leading to unstable cutting quality. For example, slag buildup on the drum surface can hinder the movement of related components, reducing equipment efficiency. Summary of the Invention

[0005] The main objective of this invention is to provide a heavy-duty plasma cutting machine for steel, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A heavy-duty steel plasma cutting machine includes a support platform, a support plate fixedly connected to the upper end of the support platform, a housing fixedly connected to the upper end of the support plate, a plurality of fireproof curtains fixedly installed on the housing, a plasma generator fixedly connected to the upper end of the housing, a universal robotic arm fixedly installed on the inner surface of the housing, a plasma spray gun connected to the plasma generator fixedly installed at the movable end of the universal robotic arm, a controller provided on one side of the housing, buffer limiting structures symmetrically arranged on the upper end of the support plate, and a slag cleaning structure provided on the inner surface of the support plate.

[0008] Preferably, a plurality of support rollers are rotatably mounted on the inner surface of the support plate, a slag box communicating with the front end of the support plate is slidably connected to one side of the inner surface of the support plate, and drive grooves for driving the slag cleaning structure are symmetrically opened on the inner surface of the support plate.

[0009] Preferably, the buffer limiting structure includes a sliding block 1 that is slidably connected to one side of the upper end of the support plate. The inner surface of the sliding block 1 is threaded with a screw driven by a motor. The outer surface of the screw is mounted on the upper end of the support plate through a bearing bracket. A limiting block is rotatably connected to the side of the sliding block 1 away from the inner wall of the outer shell.

[0010] Preferably, the buffer limiting structure further includes a clamping connection seat fixedly connected to the upper end of the support platform. A plurality of clamping buffer components are arranged in an array on the side of the clamping connection seat away from the inner wall of the outer shell. A sliding groove is provided at the rear of the upper end of the support plate. An L-shaped block is slidably connected to the inner surface of the sliding groove. A spring block is slidably connected to the inner corner of the L-shaped block. A plurality of driving blocks are slidably connected in an array on the inner surface of the clamping connection seat. Cables fixedly connected to the L-shaped blocks are symmetrically slidably connected to the inner surface of the clamping connection seat. Each driving block is fixedly connected to the outer surface of the cable. A wedge-shaped groove is provided on the side of the driving block near the clamping buffer component. The wedge-shaped groove is slidably connected to the clamping buffer component. A spring rod fixedly connected to the front driving block is fixedly connected to the front side of the inner surface of the clamping connection seat.

[0011] Preferably, the clamping buffer assembly includes a mounting base. A second spring rod, symmetrically fixedly connected to the clamping connecting base, is located at one end of the mounting base near the clamping connecting base. A contact rod, extending through the outer surface of the clamping connecting base into the inner cavity of the clamping connecting base and fitting against the inclined surface of the wedge-shaped groove, is fixedly connected to the other end of the mounting base near the clamping connecting base. A contact block is slidably connected to the inner surface of the mounting base away from the clamping connecting base. A compression spring is fixedly connected to the contact block and the inner cavity of the mounting base. Sliding grooves are symmetrically formed at the upper and lower parts of the inner surface of the mounting base. A clamping component is provided on the inner surface of the mounting base.

[0012] Preferably, the clamping component includes a liquid storage chamber 2 symmetrically distributed at the upper end of the mounting base and three liquid storage chambers 1 triangularly distributed within the inner cavity of the mounting base. All three liquid storage chambers 1 are connected to adjacent sliding grooves 2. Piston rods 2 are slidably connected to the inner surfaces of two of the liquid storage chambers 2, and clamping arms are fixedly connected to the upper ends of both piston rods 2. Sliding rods are slidably connected to the inner surfaces of the two sliding grooves 2 on both sides. Connecting rods rotatably connected to contact blocks are rotatably connected to the outer surfaces of the two sliding rods. Piston rods 1 slidably connected to the inner surfaces of adjacent liquid storage chambers 1 are rotatably connected to the upper and lower parts of the inner surfaces of the two sliding rods. The upper liquid storage chamber 1 is connected to the upper part of the inner cavity of the liquid storage chamber 2 via a connecting pipe, and the lower liquid storage chamber 1 is connected to the lower part of the inner cavity of the liquid storage chamber 2 via a connecting pipe.

[0013] Preferably, the slag cleaning structure includes a cleaning component that is slidably connected to the bottom wall of the inner surface of the support plate and driven by the driving groove. The upper end of the cleaning component is linearly distributed and fixedly connected with a plurality of Y-shaped connecting rods, and the upper part of the inner surface of each of the plurality of Y-shaped connecting rods is rotatably connected with a cleaning ring sleeved on the outer surface of the adjacent roller.

[0014] Preferably, two sliding blocks are slidably connected to the front and rear parts of the inner surface of the cleaning component. Several oscillating springs that are fixedly connected to the adjacent inner wall of the cleaning component are fixedly connected to the side of the two sliding blocks that are far apart from each other. A slag removal shovel that is in close contact with the bottom wall of the inner surface of the support plate is fixedly connected to the lower end of the two sliding blocks. The bottom edge of the sliding block that is close to the molten slag box does not contact the bottom wall of the support plate. An elliptical block driven by a motor is rotatably connected to the middle of the inner surface of the cleaning component. The outer surface of the elliptical block is in close contact with the slag removal shovels on both sides.

[0015] Preferably, the cleaning ring includes a geared disc rotatably connected to the inner surface of the Y-shaped connecting rod, an abrasive sheet that fits against the outer surface of the roller is fixedly connected to the inner surface of the geared disc, limit rings are fixedly connected to both ends of the geared disc, and a gear driven by a motor is rotatably connected to the inner surface of the Y-shaped connecting rod, the gear meshing with the geared disc.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention achieves precise positioning and fixation of steel through the cooperation of a buffer limiting structure and a support plate. The steel is pushed to the designated position by a sliding block, screw, and limiting block. The L-shaped block, cable, etc. drive the clamping buffer assembly to achieve multi-directional clamping. The contact block, compression spring, and non-Newtonian fluid work together to reduce cutting deviation and improve accuracy. The slag cleaning structure and support plate work together to achieve efficient slag cleaning. The cleaning component, Y-shaped connecting rod, and cleaning ring clean the inner wall and roller simultaneously. The sliding block II, slag scraper, and elliptical block vibrate to scrape away the slag. The toothed disc, abrasive disc, etc., improve cleaning efficiency and ensure cutting quality.

[0018] 2. This invention achieves precise positioning and fixation of steel through the cooperation of a buffer limiting structure and a support plate. Specifically, the cooperation of a sliding block, a screw, and a limiting block pushes the steel to a designated position, where it contacts the L-shaped block for initial positioning. The linkage of the L-shaped block, cable, drive block, and wedge groove drives the clamping buffer assembly to move towards the side wall of the steel, achieving multi-directional clamping. Through the synergistic effect of the contact block, compression spring, and liquid storage chambers one and two in the clamping component, as well as the non-Newtonian fluid, elastic clamping and vibration buffering of the steel are achieved, reducing offset during the cutting process and improving cutting accuracy.

[0019] 3. This invention achieves efficient cleaning of plasma cutting slag through the cooperation of the slag cleaning structure and the support plate. Specifically, the cleaning components, Y-shaped connecting rods, and cleaning ring work together to simultaneously clean the slag on the inner wall of the support plate and the surface of the drum under the drive of the drive groove. The synergistic action of the sliding block II, the oscillating spring, the slag removal shovel, and the elliptical block in the cleaning components enables the slag removal shovel to vibrate and scrape left and right, gradually pushing the slag towards the slag box. The cleaning ring's toothed disc, abrasive disc, limiting ring, and gears work together to achieve rotational cleaning on the drum surface, improving cleaning efficiency and reducing the impact of slag residue on cutting quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the outer casing of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the support plate of the present invention;

[0023] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of a local structure at point A;

[0024] Figure 5 This is a schematic diagram of the buffer limiting structure of the present invention;

[0025] Figure 6 This is a cross-sectional structural diagram of the clamping connector of the present invention;

[0026] Figure 7 This is a schematic diagram of the clamping buffer assembly of the present invention;

[0027] Figure 8 This is a schematic diagram of the clamping component of the present invention;

[0028] Figure 9 This is a schematic diagram of the cleaning component of the present invention;

[0029] Figure 10 This is a schematic diagram of the cleaning ring of the present invention.

[0030] In the diagram: 1. Support platform; 11. Support plate; 12. Support roller; 13. Slag box; 14. Drive groove; 2. Outer shell; 21. Fire curtain; 3. Plasma generator; 31. Universal robotic arm; 32. Plasma spray gun; 4. Controller; 5. Buffer and limit structure; 51. Sliding block one; 52. Slide groove one; 53. Screw; 54. Limiting block; 55. Clamping connecting seat; 551. Cable; 552. Spring rod one; 553. Drive block; 554. Wedge groove; 56. L-shaped block; 561. Spring block; 57. Clamping buffer assembly; 571. Mounting seat; 5711. Slide groove two; 5712. 572. Connecting pipe; 573. Contact block; 574. Compression spring; 575. Clamping component; 576. Clamping arm; 5777. Sliding rod; 578. Piston rod one; 579. Liquid storage chamber one; 570. Liquid storage chamber two; 571. Piston rod two; 572. Connecting rod; 573. Contact rod; 574. Spring rod two; 6. Slag cleaning structure; 61. Y-shaped connecting rod; 62. Cleaning component; 621. Sliding block two; 622. Slag removal shovel; 623. Vibrating spring; 624. Elliptical block; 63. Cleaning ring; 635. Abrasive disc; 636. Gear; 637. Limiting ring. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1, as Figure 1 and Figure 2 As shown, a heavy-duty steel plasma cutting machine includes a support platform 1, a support plate 11 fixedly connected to the upper end of the support platform 1, a housing 2 fixedly connected to the upper end of the support plate 11, a plurality of fireproof curtains 21 fixedly installed on the housing 2, a plasma generator 3 fixedly connected to the upper end of the housing 2, a universal robotic arm 31 fixedly installed on the inner surface of the housing 2, a plasma spray gun 32 connected to the plasma generator 3 fixedly installed at the movable end of the universal robotic arm 31, a controller 4 is provided on one side of the housing 2, buffer limiting structures 5 are symmetrically arranged on the left and right sides of the upper end of the support plate 11, and a slag cleaning structure 6 is provided on the inner surface of the support plate 11.

[0033] It should be noted that the aforementioned control housing 2 is a conventional control device in the prior art, used to control the start-up, stop or forward and reverse operation of the electrical equipment therein. It is a conventional device in the prior art. In this invention, it is mainly used to control the operation of the drive equipment and laser equipment therein. Its internal structure and specific control principle will not be shown or described in detail.

[0034] Furthermore, the plasma generator 3 is used to generate high pressure and blow high-pressure ions through pipes to the plasma spray gun 32 via an internal air pump, and finally blow them out to form an ion flame, which is then used for cutting by high-temperature ions. It is a conventional cutting device in the prior art, and the present invention will not show or elaborate on its internal structure and specific control principle.

[0035] Furthermore, to achieve the support and transportation of steel, see [reference needed]. Figure 2 and Figure 3 A number of support rollers 12 are rotatably mounted on the inner surface of the support plate 11. A slag box 13 connected to the front end of the support plate 11 is slidably connected to one side of the inner surface of the support plate 11. A drive groove 14 for driving the slag cleaning structure 6 is symmetrically opened on the inner surface of the support plate 11.

[0036] Roller 12 is a conventional electric roller used to transport items on its upper part. At the same time, by suspending the upper steel plate, the molten slag produced by cutting can fall downward into the inner cavity of the bottom support plate 11, preventing the slag from accumulating on the platform.

[0037] In the operation of this embodiment, the cooperation between the buffer limiting structure 5 and the support plate 11 achieves precise limiting and fixing of the steel. The steel is pushed to the designated position by the sliding block 51, screw 53, and limiting block 54. The L-shaped block 56, cable 551, etc., drive the clamping buffer assembly 57 to achieve multi-directional clamping. The contact block 572, compression spring 573, and non-Newtonian fluid work together to reduce cutting offset and improve accuracy. The cooperation between the slag cleaning structure 6 and the support plate 11 achieves efficient slag cleaning. The cleaning component 62, Y-shaped connecting rod 61, and cleaning ring 63 simultaneously clean the inner wall and drive groove 14. The sliding block 621, slag scraper 622, and elliptical block 624 vibrate and scrape away the slag. The toothed disc 632, abrasive disc 631, etc., improve cleaning efficiency and ensure cutting quality.

[0038] Example 2: Based on Example 1, this example achieves precise positioning and fixing of the steel through the cooperation of the buffer limiting structure 5 and the support plate 11. Specifically, the steel is moved to the designated position by the cooperation of the sliding block 51, the screw 53 and the limiting block 54, and initially positioned by contacting the L-shaped block 56. The linkage of the L-shaped block 56, the cable 551, the driving block 553 and the wedge groove 554 drives the clamping buffer assembly 57 to move towards the side wall of the steel, achieving multi-directional clamping. Through the synergistic effect of the contact block 572, the compression spring 573 and the liquid storage chambers 5744 and 5745 in the clamping component 574, as well as the non-Newtonian fluid, elastic clamping and vibration buffering of the steel are achieved, reducing the offset during the cutting process and improving the cutting accuracy.

[0039] Specifically, to achieve the goal of limiting the movement of steel after it arrives, please refer to... Figure 4The buffer limiting structure 5 includes a sliding block 51 that is slidably connected to one side of the upper end of the support plate 11. The inner surface of the sliding block 51 is threaded with a screw 53 driven by a motor. The outer surface of the screw 53 is mounted on the upper end of the support plate 11 through a bearing bracket. The side of the sliding block 51 away from the inner wall of the outer shell 2 is rotatably connected to a limiting block 54.

[0040] When the steel enters the support plate 11, the screw 53 is driven to rotate by the motor, and the screw 53 and the sliding block 51 are driven to move the sliding block 51 and the limiting block 54 toward the steel by the thread action of the screw 53 and the sliding block 51. This causes the limiting block 54 to be tightly attached to the top of the steel, and the steel is pushed backward by the action of the limiting block 54 until it contacts the L-shaped block 56.

[0041] Furthermore, to achieve the fixation of the steel, refer to... Figure 5 and Figure 6 The buffer limiting structure 5 also includes a clamping connection seat 55 fixedly connected to the upper end of the support platform 1. Several clamping buffer components 57 are arranged in an array on the side of the clamping connection seat 55 away from the inner wall of the outer shell 2. A sliding groove 52 is opened at the rear of the upper end of the support plate 11. An L-shaped block 56 is slidably connected to the inner surface of the sliding groove 52. A spring block 561 is slidably connected to the inner corner of the L-shaped block 56. Several driving blocks 553 are arranged in an array and slidably connected to the inner surface of the clamping connection seat 55. Cables 551 fixedly connected to the L-shaped block 56 are symmetrically slidably connected to the inner surface of the clamping connection seat 55. Several driving blocks 553 are fixedly connected to the outer surface of the cable 551. A wedge groove 554 is opened on the side of the driving block 553 near the clamping buffer component 57. The wedge groove 554 is slidably connected to the clamping buffer component 57. A spring rod 552 fixedly connected to the front driving block 553 is fixedly connected to the front side of the inner surface of the clamping connection seat 55.

[0042] Under the action of the limiting block 54 and the driving groove 14, the steel moves backward and contacts the L-shaped block 56. The side is initially positioned by the action of the spring block 561. Under the action of the limiting block 54, the steel slides backward along the slide groove 52 against the L-shaped block 56. The clamping buffer assembly 57 moves towards the side wall of the steel through the cooperation of the L-shaped block 56 and the clamping connecting seat 55 until the clamping buffer assembly 57, the limiting block 54, and the L-shaped block 56 completely restrict the steel in the plasma cutting area, thereby limiting the steel, reducing the vibration of the steel caused by the impact of the high-pressure flame during the plasma cutting process, reducing the steel deviation, improving the cutting accuracy, and ensuring a flat cut surface.

[0043] Furthermore, to achieve both fixation and cushioning of the steel, see [reference needed]. Figure 7 and Figure 8The clamping buffer assembly 57 includes a mounting base 571. A spring rod 576, which is fixedly connected to the clamping connecting base 55, is symmetrically fixedly connected to one end of the mounting base 571 near the clamping connecting base 55. A contact rod 575, which extends through the outer surface of the clamping connecting base 55 to the inner cavity of the clamping connecting base 55 and is in contact with the inclined surface of the wedge groove 554, is fixedly connected to one end of the mounting base 571 near the clamping connecting base 55. A contact block 572 is slidably connected to the inner surface of the mounting base 571 away from the clamping connecting base 55. A compression spring 573 is fixedly connected to the contact block 572 and the inner cavity of the mounting base 571. Sliding grooves 5711 are symmetrically opened at the upper and lower parts of the inner surface of the mounting base 571. A clamping component 574 is provided on the inner surface of the mounting base 571.

[0044] As the L-shaped block 56 moves away from the clamping connection seat 55, the drive block 553 is pulled synchronously by the cable 551. During this process, the wedge groove 554 in the drive block 553 pushes the contact rod 575 outward until the contact block 572 contacts the side wall of the steel. At this time, the compression spring 573 will be forced to move inward into the mounting seat 571, thereby driving the clamping component 574 to clamp and fix the steel. At the same time, the action of the clamping component 574 will buffer the passive vibration of the steel and reduce the positional displacement.

[0045] Furthermore, to achieve the fixation of the steel, refer to... Figure 8 The clamping component 574 includes a second liquid storage chamber 5745 symmetrically distributed at the upper end of the mounting base 571 and three first liquid storage chambers 5744 triangularly distributed within the inner cavity of the mounting base 571. All three first liquid storage chambers 5744 are connected to adjacent sliding grooves 5711. Piston rods 5746 are slidably connected to the inner surfaces of two second liquid storage chambers 5745. Clamping arms 5741 are fixedly connected to the upper ends of both piston rods 5746. Sliding rods 5742 are slidably connected to the inner surfaces of the two sliding grooves 5711 on both sides. The outer surfaces of the two sliding rods 5742... Each surface is rotatably connected to a connecting rod 5747 that is rotatably connected to a contact block 572. The upper and lower parts of the inner surfaces of the two sliding rods 5742 are rotatably connected to piston rods 5743 that are slidably connected to the inner surface of the adjacent liquid storage chamber 1 5744. The upper liquid storage chamber 1 5744 is connected to the upper part of the inner cavity of the liquid storage chamber 2 5745 through a connecting pipe 5712. The lower liquid storage chamber 1 5744 is connected to the lower part of the inner cavity of the liquid storage chamber 2 5745 through a connecting pipe 5712. Both liquid storage chamber 1 5744 and liquid storage chamber 2 5745 are filled with non-Newtonian fluid.

[0046] Through the action of the connecting rod 5747 and the contact block 572, the sliding rod 5742 is driven to slide in the second slide groove 5711. Then, through the action of the sliding rod 5742 on the piston rod 5743, the non-Newtonian fluid in the first liquid storage chamber 5744 is driven to transfer between the second liquid storage chamber 5745 and the first liquid storage chamber 5744, thereby driving the position change of the second piston rod 5746, thereby controlling the height of the clamping arm 5741 and realizing the clamping and releasing of the steel.

[0047] Specifically, when the drive block 553 pulls the L-shaped block 56 backward, the contact rod 575 moves towards the steel under the action of the clamping component 574, thereby making the contact block 572 contact the steel. Furthermore, the contact block 572 compresses the compression spring 573 and drives the sliding rod 5742 to move towards the center of the mounting base 571 through the connecting rod 5747. At this time, the piston rod 5743 on the upper side compresses the non-Newtonian fluid in the upper liquid storage chamber 5744, causing it to enter the upper layer of the liquid storage chamber 5745 along the connecting pipe 5712. Simultaneously, the piston rod 5743 on the lower side draws the non-Newtonian fluid in the lower part of the liquid storage chamber 5745 through the connecting pipe 5712, causing it to enter the two lower liquid storage chambers 5744 until the clamping arm 5741 contacts the steel and compacts the steel.

[0048] Non-Newtonian fluids possess fluid properties consistent with hydraulic oil under static or low-shear conditions, and can be used as pressure transmission media to achieve clamping actions. Furthermore, non-Newtonian fluids can switch between "static fluid properties" and "dynamic solid properties".

[0049] Static clamping stage: At this stage, the steel is not subjected to cutting impact, the vibration intensity is low, and the non-Newtonian fluid is in a low-shear state, maintaining its fluid properties. Pressure is uniformly transmitted to clamping arm 5741 through the fluid, and the piston rod stably holds the steel, with a constant clamping force (consistent with the effect of hydraulic oil).

[0050] Dynamic vibration stage: When the high-temperature electric arc generated by plasma cutting impacts the steel or the steel releases stress due to thermal deformation, the vibration is transmitted to the hydraulic cylinder through the clamping arm 5741, forming a high-frequency shear force (the vibration frequency is usually hundreds to thousands of hertz). At this time, the non-Newtonian fluid is subjected to severe shearing or impact, and the molecular chains quickly entangle or the particles agglomerate, instantly switching from a fluid state to a solid-like state (shear thickening effect). Its viscosity rises sharply and even becomes rigid.

[0051] When the vibration of the steel is transmitted to the non-Newtonian fluid in the hydraulic cylinder through the clamping arm 5741, the vibration energy is converted into shear force / impact force on the fluid, triggering its "solidification" transformation. At this time, the bulk elastic modulus of the fluid is significantly increased (approaching that of elastic bodies such as rubber, reaching 10-50 GPa), and it is almost incompressible.

[0052] The non-Newtonian fluid in a solid-like state forms a "rigid support" in the cylinder, blocking the reciprocating motion of the clamping arm 5741: when the clamping arm 5741 attempts to retract into the cylinder due to the vibration of the steel, the solid properties of the fluid provide a reverse resistance, preventing the piston rod from retracting; when the clamping arm 5741 attempts to expand outward under the reaction force, the fluid can still maintain pressure transmission, ensuring that the clamping arm 5741 always adheres tightly to the steel surface.

[0053] When the limit block 54 releases the steel and resets, the drive block 553 will reset under the action of the first spring rod 552, and drive the mounting base 571 to reset through the second spring rod 576. At this time, under the action of the compression spring 573, the contact block 572 resets and no longer limits the steel.

[0054] Example 3: Based on Example 2, this example further achieves efficient cleaning of plasma cutting slag through the cooperation of the slag cleaning structure 6 and the support plate 11. Specifically, through the cooperation of the cleaning component 62, the Y-shaped connecting rod 61, and the cleaning ring 63, the slag on the inner wall of the support plate 11 and the surface of the drum 12 is cleaned simultaneously under the drive of the drive groove 14. Utilizing the synergistic effect of the sliding block 621, the oscillating spring 623, the slag removal shovel 622, and the elliptical block 624 within the cleaning component 62, the slag removal shovel 622 vibrates left and right to scrape away the slag, gradually pushing it towards the slag box 13. Through the cooperation of the toothed disc 632, the abrasive disc 631, the limiting ring 634, and the gear 633 in the cleaning ring 63, the cleaning ring 63 rotates and cleans on the surface of the drum 12, improving cleaning efficiency and reducing the impact of slag residue on cutting quality.

[0055] Specifically, to achieve the cleaning of slag generated at high temperatures during plasma cutting, refer to... Figure 3 and Figure 9 The slag cleaning structure 6 includes a cleaning component 62 that is slidably connected to the bottom wall of the inner surface of the support plate 11 and driven by the drive groove 14. Several Y-shaped connecting rods 61 are linearly distributed and fixedly connected to the upper end of the cleaning component 62. A cleaning ring 63 sleeved on the outer surface of the adjacent roller 12 is rotatably connected to the upper part of the inner surface of the several Y-shaped connecting rods 61.

[0056] The cleaning component 62 is driven by the drive groove 14 set on the inner surface of the support plate 11, which causes the cleaning component 62 to move cyclically on the bottom wall of the inner surface of the support plate 11. Simultaneously, the cleaning ring 63 is driven to move on the corresponding roller 12 surface through the Y-shaped connecting rod 61, so as to clean the slag on the inner wall of the support plate 11 and the surface of the roller 12.

[0057] Furthermore, to clean the slag inside the support plate 11, refer to... Figure 9Sliding blocks 621 are slidably connected to the front and rear of the inner surface of the cleaning component 62. Several oscillating springs 623 are fixedly connected to the side of the two sliding blocks 621 that are far apart from each other. A slag removal shovel 622 that is in close contact with the bottom wall of the inner surface of the support plate 11 is fixedly connected to the lower end of the two sliding blocks 621. The bottom edge of the sliding block 621 that is close to the slag box 13 does not contact the bottom wall of the support plate 11. An elliptical block 624 driven by a motor is rotatably connected to the middle of the inner surface of the cleaning component 62. The outer surface of the elliptical block 624 is in close contact with the slag removal shovels 622 on both sides.

[0058] During the movement of the cleaning component 62, the elliptical block 624 is driven by the motor to rotate continuously. The elliptical block 624 then periodically pushes the sliding block 621 to slide left and right. During the movement, the slag removal shovel 622 is always in contact with the bottom wall of the support plate 11. In the process of moving left and right, the molten slag adhering to the bottom wall of the support plate 11 can be scraped off and gradually pushed towards the molten slag box 13, thereby cleaning the molten slag at the bottom.

[0059] Furthermore, to remove the slag adhering to the surface of roller 12, refer to... Figure 10 The cleaning ring 63 includes a geared disc 632 rotatably connected to the inner surface of the Y-shaped connecting rod 61. An abrasive disc 631 that fits against the outer surface of the roller 12 is fixedly connected to the inner surface of the geared disc 632. Limiting rings 634 are fixedly connected to both ends of the geared disc 632. A gear 633 driven by a motor is rotatably connected to the inner surface of the Y-shaped connecting rod 61. The gear 633 meshes with the geared disc 632.

[0060] During the movement of the cleaning component 62, the cleaning ring 63 slides on the drum 12 under the action of the Y-shaped connecting rod 61. Simultaneously, during the sliding process, the motor drives the gear 633 to rotate, and the meshing action of the gear 633 and the toothed disc 632 drives the abrasive disc 631 to rotate on the surface of the drum 12. The limiting ring 634 on the surface of the toothed disc 632 is used to make it engage with the Y-shaped connecting rod 61 to prevent it from falling off.

[0061] Furthermore, the front and rear sides of the toothed disc 632 are conical, which can clean the slag on the surface of the roller 12 during the movement. In addition, the abrasive disc 631 can improve its cleaning efficiency during the rotation process, and reduce the impact of residual slag on the surface of the roller 12 on the subsequent plasma cutting of steel, which would cause the cut surface to be skewed due to the unevenness of the roller 12 surface and affect the cutting quality.

[0062] 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A heavy steel material plasma cutting machine comprising a support table (1), characterized in that: The support table (1) upper end is fixedly connected with a support plate (11), the support plate (11) upper end is fixedly connected with a shell (2), the shell (2) is fixedly installed with a plurality of fireproof curtains (21), the shell (2) upper end is fixedly connected with a plasma generator (3), the shell (2) inner surface is fixedly installed with a universal mechanical arm (31), the universal mechanical arm (31) movable end is fixedly installed with the plasma lance (32) connected with plasma generator (3), the shell (2) one side is provided with a controller (4), the support plate (11) upper end is provided with buffer limiting structure (5) left and right symmetrical, the support plate (11) inner surface is provided with slag cleaning structure (6); The buffer limiting structure (5) further includes a clamping connecting seat (55) fixedly connected to the upper end of the support table (1), a plurality of clamping buffer assemblies (57) are arranged in an array on the side of the clamping connecting seat (55) away from the inner wall of the shell (2), a sliding groove one (52) is formed in the rear upper end of the support plate (11), an L-shaped block (56) is slidably connected to the inner surface of the sliding groove one (52), a spring block (561) is slidably connected to the inner corner of the L-shaped block (56), a plurality of drive blocks (553) are slidably connected in an array to the inner surface of the clamping connecting seat (55), a cable (551) is slidably connected in an array to the inner surface of the clamping connecting seat (55) symmetrically above and below and fixedly connected to the L-shaped block (56), the plurality of drive blocks (553) are fixedly connected to the outer surface of the cable (551), a wedge-shaped groove (554) is formed in the side of the drive block (553) close to the clamping buffer assembly (57), the wedge-shaped groove (554) is slidably connected to the clamping buffer assembly (57), a spring rod one (552) is fixedly connected to the front drive block (553) and fixedly connected to the front side of the inner surface of the clamping connecting seat (55); The clamping buffer assembly (57) includes a mounting seat (571), a spring rod two (576) is fixedly connected to the mounting seat (571) and the clamping connecting seat (55) symmetrically in front of and behind one end of the mounting seat (571) close to the clamping connecting seat (55), a contact rod (575) is fixedly connected to the mounting seat (571) and extends through the outer surface of the clamping connecting seat (55) to the inner cavity of the clamping connecting seat (55) and abuts the inclined surface of the wedge-shaped groove (554), a contact block (572) is slidably connected to the inner surface of the mounting seat (571) on the side away from the clamping connecting seat (55), the contact block (572) and the inner cavity of the mounting seat (571) are fixedly connected with a compression spring (573), a sliding groove two (5711) is formed in the upper and lower parts of the inner surface of the mounting seat (571) symmetrically in front of and behind, and a clamping component (574) is arranged on the inner surface of the mounting seat (571).

2. A heavy steel material plasma cutting machine according to claim 1, characterized in that: A plurality of supporting rollers (12) are rotatably installed on the inner surface of the supporting plate (11), a slag box (13) in communication with the front end of the supporting plate (11) is slidably connected to one side of the inner surface of the supporting plate (11), and drive grooves (14) for driving the slag cleaning structure (6) are symmetrically formed on the inner surface of the supporting plate (11).

3. A heavy steel material plasma cutting machine according to claim 1, characterized in that: The buffer limiting structure (5) comprises a sliding block one (51) slidably connected to one side of the upper end of the supporting plate (11), a screw rod (53) driven by a motor is threadedly connected to the inner surface of the sliding block one (51), the outer surface of the screw rod (53) is installed on the upper end of the supporting plate (11) through a bearing support, and a limiting block (54) is rotatably connected to one side of the sliding block one (51) away from the inner wall of the shell (2).

4. A heavy steel material plasma cutting machine according to claim 1, characterized in that: The clamping component (574) comprises two liquid storage cavities two (5745) symmetrically and forwardly and rearwardly arranged on the upper end of the mounting seat (571) and three liquid storage cavities one (5744) triangularly arranged in the inner cavity of the mounting seat (571), the three liquid storage cavities one (5744) are in communication with adjacent sliding grooves two (5711), the inner surfaces of the two liquid storage cavities two (5745) are slidably connected with piston rods two (5746), the upper ends of the two piston rods two (5746) are fixedly connected with clamping arms (5741), the inner surfaces of the two sliding grooves two (5711) are slidably connected with sliding rods (5742), the outer surfaces of the two sliding rods (5742) are rotatably connected with connecting rods (5747) rotatably connected with the contact blocks (572), the inner surfaces of the upper and lower portions of the two sliding rods (5742) are rotatably connected with piston rods one (5743) slidably connected with the inner surfaces of adjacent liquid storage cavities one (5744), the liquid storage cavity one (5744) at the upper portion is in communication with the inner cavity of the liquid storage cavity two (5745) at the upper portion through a communication pipe (5712), and the liquid storage cavity one (5744) at the lower portion is in communication with the inner cavity of the liquid storage cavity two (5745) at the lower portion through a communication pipe (5712).

5. A heavy steel material plasma cutting machine according to claim 1, characterized in that: The slag cleaning structure (6) comprises a cleaning piece (62) slidably connected to the bottom wall of the inner surface of the supporting plate (11) and driven by the drive grooves (14), a plurality of Y-shaped connecting rods (61) are linearly and fixedly connected to the upper end of the cleaning piece (62), and the inner surfaces of the upper portions of the Y-shaped connecting rods (61) are rotatably connected with cleaning rings (63) sleeved on the outer surfaces of adjacent rollers (12).

6. A heavy steel material plasma cutting machine according to claim 5, characterized in that: The inner surface of the cleaning piece (62) is slidably connected with a sliding block two (621) at the front and rear, and the sides away from each other of the two sliding block two (621) are fixedly connected with a plurality of oscillating springs (623) fixedly connected with the adjacent inner wall of the cleaning piece (62), the lower end of the two sliding block two (621) is fixedly connected with a slag removal shovel (622) tightly attached to the inner surface bottom wall of the support plate (11), the side bottom edge of the sliding block two (621) close to the slag box (13) is not in contact with the bottom wall of the support plate (11), and the inner surface of the cleaning piece (62) is rotatably connected with an oval block (624) driven by a motor at the middle part, and the outer surface of the oval block (624) is tightly attached to the two slag removal shovels (622).

7. A heavy steel material plasma cutting machine according to claim 6, characterized in that: The cleaning ring (63) comprises a toothed disc (632) rotatably connected with the inner surface of the Y-shaped connecting rod (61), the inner surface of the toothed disc (632) is fixedly connected with a sanding sheet (631) tightly attached to the outer surface of the roller (12), the left and right ends of the toothed disc (632) are fixedly connected with a limiting ring (634), the inner surface of the Y-shaped connecting rod (61) is rotatably connected with a gear (633) driven by a motor, and the gear (633) is engaged with the toothed disc (632).

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