Heavy steel plasma cutting machine

Abstract

The invention discloses a heavy steel plasma cutting machine, and particularly relates to the technical field of plasma cutting, the heavy steel plasma cutting machine comprises a supporting table, a shell is fixedly connected to the upper end of a supporting plate, a universal mechanical arm is fixedly mounted on the inner surface of the shell, and a plasma spray gun connected with a plasma generator is fixedly mounted at the movable end of the universal mechanical arm; buffering limiting structures are arranged at the upper end of the supporting plate in a bilateral symmetry mode, and a slag cleaning structure is arranged on the inner surface of the supporting plate. According to the plasma cutting machine for the heavy steel, the L-shaped block, the mooring rope and the like drive the clamping and buffering assembly to achieve multi-directional clamping, the contact block, the compression spring and the non-Newtonian fluid act synergistically to reduce cutting offset, and precision is improved; the slag cleaning structure is matched with the supporting plate to achieve efficient slag cleaning, a sweeping piece, a Y-shaped connecting rod and a cleaning ring synchronously clean the slag, a second sliding block, a slag removal shovel and an oval block vibrate to scrape the slag, a fluted disc, a grinding piece and the like improve the cleaning efficiency, and the cutting quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma cutting, in particular to a heavy steel plasma cutting machine. Background Art

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

[0003] Heavy-duty steel plasma cutting machines are specialized equipment for cutting heavy steel. When cutting heavy steel, they primarily utilize the heat of a high-temperature plasma arc to partially melt the metal at the cut. Simultaneously, the momentum of the high-speed plasma is used to expel the molten metal, forming an incision and completing the cut. To effectively cut heavy steel, these machines often feature a cutting platform capable of supporting the material, as well as a control system that precisely controls plasma arc parameters (such as current, voltage, and gas flow) to ensure cutting stability and quality.

[0004] Although existing heavy-duty steel plasma cutting machines are equipped with a load-bearing platform and a system for controlling plasma arc parameters, it is difficult to achieve precise, multi-directional fixation of the steel using conventional structures alone. Heavy steel is heavy and hard, and is prone to deviation due to vibration during cutting, resulting in reduced incision accuracy and affecting subsequent processing. Regarding slag cleaning, there is a lack of specialized and efficient cleaning structures. The slag produced by cutting will adhere to the support plate and the surface of the roller. Long-term accumulation will affect the normal operation of the equipment components and increase the difficulty of maintenance. Residual slag may also interfere with subsequent cutting, resulting in unstable cutting quality. For example, slag accumulation on the roller surface will hinder the movement of related components and reduce the efficiency of the equipment. Summary of the Invention

[0005] The main purpose of the present invention is to provide a heavy-duty steel plasma cutting machine that can effectively solve the problems involved in the above-mentioned background technology.

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

[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 shell fixedly connected to the upper end of the support plate, a plurality of fire curtains fixedly installed on the shell, a plasma generator fixedly connected to the upper end of the shell, a universal mechanical arm fixedly installed on the inner surface of the shell, a plasma spray gun connected to the plasma generator fixedly installed on the movable end of the universal mechanical arm, a controller provided on one side of the shell, a buffer limit structure symmetrically provided 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 connected to the front end of the support plate is slidably connected to one side of the inner surface of the support plate, and a driving groove for driving the slag cleaning structure is symmetrically opened on the inner surface of the support plate.

[0009] Preferably, the buffer limit 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 threadedly connected to a screw driven by a motor, the outer surface of the screw is installed on the upper end of the support plate through a bearing bracket, and the sliding block 1 is rotatably connected to the limiting block on the side away from the inner wall of the outer shell.

[0010] The cam is secured to the rear of the unit and has an L-shaped latch that is secured to the rear of the unit and has a spring that allows the unit to slide freely on the inner surface of the unit, the L-shaped latch being secured to the rear of the unit and having a spring that allows the unit to slide freely on the inner surface of the unit.

[0011] Preferably, the clamping buffer assembly includes a mounting seat, and one end of the mounting seat close to the clamping connecting seat is symmetrically fixedly connected to a spring rod two fixedly connected to the clamping connecting seat, and one end of the mounting seat close to the clamping connecting seat is fixedly connected to a contact rod extending from the outer surface of the clamping connecting seat to the inner cavity of the clamping connecting seat and fitting with the inclined surface of the wedge groove, and the inner surface of the mounting seat is slidably connected to a contact block on the side away from the clamping connecting seat, and the contact block and the inner cavity of the mounting seat are jointly fixedly connected to a compression spring, and the upper and lower inner surfaces of the mounting seat are symmetrically provided with two sliding grooves, and the inner surface of the mounting seat is provided with a clamping component.

[0012] Preferably, the clamping component includes a liquid storage chamber 2 opened at the upper end of the mounting seat and three liquid storage chambers 1 opened in the inner cavity of the mounting seat in a triangular distribution. The three liquid storage chambers 1 are all connected to the adjacent slide groove 2. The inner surfaces of the two liquid storage chambers 2 are slidably connected with piston rod 2. The upper ends of the two piston rods 2 are fixedly connected to clamp arms. The inner surfaces of the two slide grooves on both sides are respectively slidably connected with sliding rods. The outer surfaces of the two sliding rods are rotatably connected with connecting rods rotatably connected to the contact blocks. The upper and lower parts of the inner surfaces of the two sliding rods are rotatably connected with piston rods 1 slidably connected to the inner surfaces of the adjacent liquid storage chambers 1. The liquid storage chamber 1 located at the upper part is connected with the upper part of the inner cavity of the liquid storage chamber 2 through a connecting pipe, and the liquid storage chamber 1 located at the lower part is connected with the lower part of the inner cavity of the liquid storage chamber 2 through a connecting pipe.

[0013] Preferably, the slag cleaning structure includes a cleaning member that is slidably connected to the bottom wall of the inner surface of the support plate and driven by a driving groove. The upper end of the cleaning member is linearly distributed and fixedly connected to a number of Y-shaped connecting rods, and the upper parts of the inner surfaces of the several Y-shaped connecting rods are rotatably connected to cleaning rings sleeved on the outer surfaces of adjacent rollers.

[0014] Preferably, the front and rear parts of the inner surface of the cleaning piece are slidably connected to sliding blocks 2, and the sides of the two sliding blocks 2 that are away from each other are fixedly connected to a number of oscillation springs fixedly connected to the adjacent inner walls of the cleaning piece, and the lower ends of the two sliding blocks 2 are fixedly connected to a slag shovel that is tightly attached to the bottom wall of the inner surface of the support plate, and the bottom edge of the sliding block 2 close to the slag box does not contact the bottom wall of the support plate, and the middle part of the inner surface of the cleaning piece is rotatably connected to an elliptical block driven by a motor, and the outer surface of the elliptical block is tightly attached to the slag shovels on both sides.

[0015] Preferably, the cleaning ring includes a toothed disc rotatably connected to the inner surface of the Y-shaped connecting rod, the inner surface of the toothed disc is fixedly connected to a frosting sheet that fits the outer surface of the drum, and the left and right ends of the toothed disc are fixedly connected to limiting rings, and the inner surface of the Y-shaped connecting rod is rotatably connected to a gear driven by a motor, and the gear is engaged with the toothed disc.

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

[0017] 1. The present invention realizes the precise limitation and fixation of steel through the cooperation of the buffer limiting structure and the support plate, pushes the steel to the specified position through the sliding block, screw and limiting block, and drives the clamping buffer assembly with the L-shaped block, cable, etc. to realize multi-directional clamping. The contact block, compression spring and non-Newtonian fluid work together to reduce cutting offset and improve precision; the slag cleaning structure and the support plate realize efficient slag cleaning, and the cleaning parts, Y-shaped connecting rod and cleaning ring synchronously clean the inner wall and the drum. The sliding block 2, slag removal shovel and elliptical block vibrate to scrape off the slag, and the toothed disc, grinding sheet, etc. improve the cleaning efficiency and ensure the cutting quality.

[0018] 2. The present invention realizes precise limiting and fixing of steel materials through the cooperation of the buffer limiting structure and the support plate; specifically, the steel materials are pushed to the specified position through the cooperation of the sliding block, the screw and the limiting block, and are initially positioned by contact with the L-shaped block; the L-shaped block, the cable, the driving block and the wedge-shaped groove are linked to drive the clamping buffer assembly to move toward the side wall of the steel material to realize multi-directional clamping; through the synergistic effect of the contact block, the compression spring and the liquid storage chamber 1, the liquid storage chamber 2 and the non-Newtonian fluid in the clamping component, the elastic clamping and vibration buffering of the steel materials are realized, the deviation during the cutting process is reduced, and the cutting accuracy is improved.

[0019] 3. The present invention realizes efficient cleaning of plasma cutting slag through the cooperation of the slag cleaning structure and the support plate; specifically, through the cooperation of the cleaning member, the Y-shaped connecting rod and the cleaning ring, the slag on the inner wall of the support plate and the surface of the drum is synchronously cleaned under the drive of the driving groove; the synergistic effect of the sliding block 2, the oscillation spring, the slag shovel and the elliptical block in the cleaning member is utilized to realize the left and right vibration scraping of the slag shovel, and gradually push the slag into the slag box; through the cooperation of the toothed disk, the grinding plate, the limit ring and the gear in the cleaning ring, the cleaning ring is realized by rotation cleaning on the drum surface, thereby improving the cleaning efficiency and reducing the influence of the slag residue on the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 Schematic diagram of the cross-sectional structure of the housing 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 A magnified schematic diagram of the local structure at center A;

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

[0025] Figure 6 Schematic diagram of the cross-sectional structure of the clamping connector of the present invention;

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

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

[0028] Figure 9 It is a structural schematic diagram of the cleaning member of the present invention;

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

[0030] In the figure: 1. support platform; 11. support plate; 12. support roller; 13. slag box; 14. drive groove; 2. shell; 21. fire curtain; 3. plasma generator; 31. universal robot arm; 32. plasma spray gun; 4. controller; 5. buffer limit structure; 51. sliding block 1; 52. slide groove 1; 53. screw; 54. limit block; 55. clamping connection seat; 551. cable; 552. spring rod 1; 553. drive block; 554. wedge groove; 56. L-shaped block; 561. spring block; 57. clamping buffer assembly; 571. mounting seat; 5711. slide groove 2; 5712. Connecting pipe; 572, contact block; 573, compression spring; 574, clamping component; 5741, clamping arm; 5742, sliding rod; 5743, piston rod one; 5744, liquid storage chamber one; 5745, liquid storage chamber two; 5746, piston rod two; 5747, connecting rod; 575, contact rod; 576, spring rod two; 6, slag cleaning structure; 61, Y-shaped connecting rod; 62, cleaning part; 621, sliding block two; 622, slag shovel; 623, oscillation spring; 624, elliptical block; 63, cleaning ring; 631, grinding sheet; 632, toothed disc; 633, gear; 634, limit ring. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[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 is fixedly connected to the upper end of the support platform 1, a shell 2 is fixedly connected to the upper end of the support plate 11, a plurality of fire curtains 21 are fixedly installed on the shell 2, a plasma generator 3 is fixedly connected to the upper end of the shell 2, a universal mechanical arm 31 is fixedly installed on the inner surface of the shell 2, a plasma spray gun 32 connected to the plasma generator 3 is fixedly installed on the movable end of the universal mechanical arm 31, a controller 4 is provided on one side of the shell 2, a buffer limit structure 5 is symmetrically provided on 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 control housing 2 is a conventional control device in the prior art, which is used to control the start and stop or forward and reverse operation of the electrical equipment therein. It is a conventional device in the prior art. In the present invention, it is mainly used to control the operation of the drive device and the laser device 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 the high-pressure ions through the pipe into the plasma spray gun 32 through the internal air pump and finally blow them out to form an ion flame, and then cut through high-temperature ions. It is a conventional cutting equipment in the prior art, and the present invention will no longer display and elaborate on its internal structure and specific control principle.

[0035] Further, in order to realize the support and transportation of steel, see Figure 2 and Figure 3 A plurality of support rollers 12 are rotatably installed on the inner surface of the support plate 11, and 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. The inner surface of the support plate 11 is symmetrically provided with driving grooves 14 for driving the slag cleaning structure 6.

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

[0037] During the operation of this embodiment, the cooperation between the buffer limit structure 5 and the support plate 11 realizes the precise limitation and fixation of the steel. The sliding block 51, the screw 53 and the limit block 54 push the steel to the specified position. The L-shaped block 56, the cable 551 and the like drive the clamping buffer assembly 57 to realize multi-directional clamping. The contact block 572, the compression spring 573 and the non-Newtonian fluid work together to reduce the cutting offset and improve the accuracy. The cooperation between the slag cleaning structure 6 and the support plate 11 realizes efficient slag cleaning. The cleaning member 62, the Y-shaped connecting rod 61 and the cleaning ring 63 synchronously clean the inner wall and the drive groove 14. The sliding block 2 621, the slag removal shovel 622 and the elliptical block 624 vibrate to scrape off the slag. The toothed disc 632, the grinding sheet 631 and the like improve the cleaning efficiency and ensure the cutting quality.

[0038] Embodiment 2. Based on embodiment 1, this embodiment realizes precise limitation and fixation of steel through the cooperation of buffer limiting structure 5 and support plate 11; specifically, the steel is pushed to the specified position through the cooperation of sliding block 51, screw 53 and limiting block 54, and is initially positioned by contact with L-shaped block 56; the L-shaped block 56, cable 551, driving block 553 and wedge groove 554 are linked to drive the clamping buffer assembly 57 to move toward the side wall of the steel to realize multi-directional clamping; through the synergistic effect of contact block 572, compression spring 573 and liquid storage chamber 1 5744, liquid storage chamber 2 5745 and non-Newtonian fluid in the clamping component 574, elastic clamping and vibration buffering of the steel are realized, the deviation during cutting is reduced, and the cutting accuracy is improved.

[0039] Specifically, in order to limit the steel after it is in place, 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 threadedly connected to a screw 53 driven by a motor. The outer surface of the screw 53 is installed 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 shell 2 is rotatably connected to the limiting block 54.

[0040] When the steel enters the support plate 11, the screw 53 is driven to rotate by the motor, and the threaded action of the screw 53 and the sliding block 51 is used to drive the sliding block 51 and the limit block 54 to move toward the steel, so that the limit block 54 is tightly attached to the top of the steel, and the steel is pushed backward by the action of the limit block 54 until it contacts the L-shaped block 56.

[0041] Further, to achieve the fixation of steel, see 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, and a plurality of clamping buffer components 57 are distributed in an array on the side of the clamping connection seat 55 away from the inner wall of the shell 2. A slide groove 52 is provided at the rear portion of the upper end of the support plate 11, and an L-shaped block 56 is slidably connected to the inner surface of the slide groove 52. A spring block 561 is slidably connected to the inner corner of the L-shaped block 56. A plurality of driving blocks 553 are slidably connected to the inner surface of the clamping connection seat 55. The inner surface of the clamping connection seat 55 is symmetrically slidably connected to the cable 551 fixedly connected to the L-shaped block 56. Several driving blocks 553 are fixedly connected to the outer surface of the cable 551. A wedge-shaped groove 554 is provided on the side of the driving block 553 close to the clamping buffer component 57, and the wedge-shaped groove 554 is slidably connected to the clamping buffer component 57. The front side of the inner surface of the clamping connection seat 55 is fixedly connected to a spring rod 552 fixedly connected to the front driving block 553.

[0042] Under the action of the limit block 54 and the driving groove 14, the steel moves backward and contacts the L-shaped block 56. The side of the steel is initially positioned by the action of the spring block 561. Under the action of the limit block 54, the steel pushes the L-shaped block 56 to slide backward along the slide groove 1 52, and the cooperation between the L-shaped block 56 and the clamping connecting seat 55 drives the clamping buffer assembly 57 to move toward the side wall of the steel until the clamping buffer assembly 57, the limit block 54, and the L-shaped block 56 completely confine 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 deviation of the steel, improving the cutting accuracy, and ensuring a smooth cut surface.

[0043] Further, to achieve the fixation and buffering of steel, refer to Figure 7 and Figure 8The clamping buffer assembly 57 includes a mounting seat 571, and one end of the mounting seat 571 close to the clamping connecting seat 55 is fixedly connected to a spring rod 576 fixedly connected to the clamping connecting seat 55 symmetrically in the front and back. The end of the mounting seat 571 close to the clamping connecting seat 55 is fixedly connected to a contact rod 575 that extends from the outer surface of the clamping connecting seat 55 to the inner cavity of the clamping connecting seat 55 and fits into the inclined surface of the wedge-shaped groove 554. A contact block 572 is slidably connected to the side of the inner surface of the mounting seat 571 away from the clamping connecting seat 55. The contact block 572 and the inner cavity of the mounting seat 571 are jointly fixedly connected with a compression spring 573. The upper and lower parts of the inner surface of the mounting seat 571 are symmetrically provided with sliding grooves 5711 in the front and back, and a clamping component 574 is provided on the inner surface of the mounting seat 571.

[0044] When the L-shaped block 56 moves away from the clamping connecting seat 55, the driving block 553 will be pulled to move synchronously through the cable 551. During this process, the wedge-shaped groove 554 opened in the driving block 553 will push the contact rod 575 to move 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 toward the inside of the mounting seat 571, and then drive the clamping component 574 to clamp and fix the steel. At the same time, the passive vibration of the steel is buffered by the action of the clamping component 574 to reduce position deviation.

[0045] Further, to achieve the fixation of steel, see Figure 8 The clamping component 574 includes a second liquid storage chamber 5745 symmetrically distributed in the front and back and opened at the upper end of the mounting seat 571 and three liquid storage chambers 5744 distributed in a triangular pattern in the inner cavity of the mounting seat 571. The three liquid storage chambers 5744 are all connected to the adjacent second slide groove 5711. The inner surfaces of the two second liquid storage chambers 5745 are slidably connected to the second piston rod 5746. The upper ends of the two second piston rods 5746 are fixedly connected to the clamping arm 5741. The inner surfaces of the second slide grooves 5711 on both sides are slidably connected to the sliding rods 5742 respectively. The outer surfaces of the two sliding rods 5742 are connected to the inner surfaces of the second slide grooves 5711 on both sides. The surfaces are rotatably connected to a connecting rod 5747 rotatably connected to the contact block 572, and the upper and lower parts of the inner surfaces of the two sliding rods 5742 are rotatably connected to a piston rod 1 5743 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 tube 5712, and 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 tube 5712. The liquid storage chamber 1 5744 and the liquid storage chamber 2 5745 are both filled with non-Newtonian fluid.

[0046] The action of the connecting rod 5747 and the contact block 572 drives the sliding rod 5742 to slide in the second slide groove 5711. The sliding rod 5742 then acts on the piston rod 1 5743 to transfer the non-Newtonian fluid in the first liquid storage chamber 5744 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. This controls the height of the clamping arm 5741 and achieves the clamping and release of the steel.

[0047] Specifically, when the driving block 553 is pulled backward by the L-shaped block 56, the contact rod 575 is moved toward the steel material by the clamping component 574, so that the contact block 572 contacts the steel material. Furthermore, the contact block 572 compresses the compression spring 573 and drives the sliding rod 5742 to move toward the center of the mounting seat 571 through the connecting rod 5747. At this time, the upper piston rod 1 5743 compresses the non-Newtonian fluid in the upper liquid storage chamber 1 5744, causing it to enter the upper layer of the liquid storage chamber 2 5745 along the connecting pipe 5712. Simultaneously, the lower piston rod 1 5743 extracts the non-Newtonian fluid from the lower part of the liquid storage chamber 2 5745 through the connecting pipe 5712, causing it to enter the two lower liquid storage chambers 1 5744, until the clamping arm 5741 contacts the steel material and compacts the steel material.

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

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

[0050] Dynamic vibration stage: When the high-temperature 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 clamp arm 5741, generating high-frequency shear force (the vibration frequency is usually hundreds to thousands of hertz). At this time, due to the severe shear or impact, the molecular chains of the non-Newtonian fluid quickly entangle or the particles agglomerate, and the fluid state instantly switches to a solid-like state (shear thickening effect). Its viscosity increases 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 clamp 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 (close to that of elastomers such as rubber, which can reach 10-50GPa), making it almost incompressible.

[0052] The non-Newtonian fluid in a solid-like state forms a "rigid support" in the cylinder body, blocking the reciprocating motion of the clamp arm 5741: when the clamp arm 5741 attempts to shrink toward the inside of the cylinder body due to the vibration of the steel, the solid properties of the fluid will provide reverse resistance, preventing the piston rod from retreating; when the clamp arm 5741 attempts to expand outward due to the reaction force, the fluid can still maintain pressure transmission, ensuring that the clamp arm 5741 always sticks to the steel surface.

[0053] When the limit block 54 releases the steel and resets, the driving block 553 will reset under the action of the spring rod 1 552, and the mounting seat 571 will be driven to reset through the spring rod 2 576. At this time, under the action of the compression spring 573, the contact block 572 is reset and no longer limits the steel.

[0054] Embodiment 3. Based on embodiment 2, this embodiment further realizes 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 member 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 roller 12 are synchronously cleaned under the drive of the driving groove 14; the synergistic effect of the sliding block 2 621, the oscillation spring 623, the slag shovel 622 and the elliptical block 624 in the cleaning member 62 is utilized to realize the left and right vibration scraping of the slag shovel 622, and gradually push the slag into the slag box 13; through the cooperation of the toothed disc 632, the grinding sheet 631, the limit ring 634 and the gear 633 in the cleaning ring 63, the cleaning ring 63 is realized by rotating and cleaning on the surface of the roller 12, thereby improving the cleaning efficiency and reducing the influence of the slag residue on the cutting quality.

[0055] Specifically, in order to clean the slag generated by high temperature plasma cutting, refer to Figure 3 and Figure 9 The slag cleaning structure 6 includes a cleaning member 62 which is slidably connected to the bottom wall of the inner surface of the support plate 11 and driven by the driving groove 14. The upper end of the cleaning member 62 is linearly distributed and fixedly connected with a plurality of Y-shaped connecting rods 61. The upper part of the inner surface of the plurality of Y-shaped connecting rods 61 is rotatably connected with a cleaning ring 63 which is sleeved on the outer surface of the adjacent roller 12.

[0056] The driving groove 14 provided on the inner surface of the support plate 11 is used to drive the cleaning member 62, driving the cleaning member 62 to circulate on the bottom wall of the inner surface of the support plate 11, and synchronously driving the cleaning ring 63 to move on the corresponding surface of the roller 12 through the Y-shaped connecting rod 61 to clean the slag on the inner wall of the support plate 11 and the surface of the roller 12.

[0057] Furthermore, in order to clean the slag in the inner cavity of the support plate 11, refer to Figure 9The front and rear parts of the inner surface of the cleaning member 62 are slidably connected to the sliding block 2 621, and the sides of the two sliding blocks 621 away from each other are fixedly connected to a number of oscillation springs 623 fixedly connected to the inner wall adjacent to the cleaning member 62. The lower ends of the two sliding blocks 621 are fixedly connected to a slag shovel 622 that is tightly attached to the bottom wall of the inner surface of the support plate 11. The bottom edge of the sliding block 2 621 close to the slag box 13 does not contact the bottom wall of the support plate 11. The middle part of the inner surface of the cleaning member 62 is rotatably connected to an elliptical block 624 driven by a motor, and the outer surface of the elliptical block 624 is tightly attached to the slag shovels 622 on both sides.

[0058] During the movement of the cleaning member 62, the elliptical block 624 is driven by the motor to rotate continuously, and then the elliptical block 624 is used to periodically push 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 continuous left and right movement, the slag adhered to the bottom wall of the support plate 11 can be scraped off and gradually pushed toward the direction of the slag box 13 to clean the slag at the bottom.

[0059] Further, in order to clean the slag attached to the surface of the roller 12, refer to Figure 10 The cleaning ring 63 includes a toothed disc 632 rotatably connected to the inner surface of the Y-shaped connecting rod 61, and the inner surface of the toothed disc 632 is fixedly connected to a frosting sheet 631 that fits the outer surface of the drum 12. The left and right ends of the toothed disc 632 are fixedly connected to limit rings 634, and the inner surface of the Y-shaped connecting rod 61 is rotatably connected to a gear 633 driven by a motor, and the gear 633 is engaged with the toothed disc 632.

[0060] During the movement of the cleaning member 62, the cleaning ring 63 is acted upon by the Y-shaped connecting rod 61 and slides on the drum 12. During the sliding process, the motor drives the gear 633 to rotate, and the engagement of the gear 633 with the toothed disc 632 drives the abrasive sheet 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 engage 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, and the slag on the surface of the drum 12 can be cleaned during movement. Furthermore, during the rotation process, the cleaning efficiency can be improved by the abrasive sheet 631, reducing the residual slag on the surface of the drum 12, which may affect the cutting quality during subsequent plasma cutting of steel due to the uneven surface of the drum 12, resulting in skewed cutting surfaces.

[0062] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy steel plasma cutting machine, comprising a support table (1), characterized in that: The upper end of the support platform (1) is fixedly connected to a support plate (11), the upper end of the support plate (11) is fixedly connected to a housing (2), the housing (2) is fixedly mounted with a plurality of fire curtains (21), the upper end of the housing (2) is fixedly connected to a plasma generator (3), a universal mechanical arm (31) is fixedly mounted on the inner surface of the housing (2), a plasma spray gun (32) connected to the plasma generator (3) is fixedly mounted on the movable end of the universal mechanical arm (31), a controller (4) is provided on one side of the housing (2), a buffer limit structure (5) is symmetrically provided on 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).

2. A heavy steel plasma cutting machine according to claim 1, characterized in that: A plurality of support rollers (12) are rotatably mounted on the inner surface of the support plate (11); a slag box (13) communicating with the front end of the support plate (11) is slidably connected to one side of the inner surface of the support plate (11); and a driving groove (14) for driving the slag cleaning structure (6) is symmetrically provided on the inner surface of the support plate (11) at the front and rear sides.

3. The heavy steel plasma cutting machine according to claim 1, characterized in that: The buffer limiting structure (5) comprises a sliding block (51) slidably connected to one side of the upper end of the support plate (11); the inner surface of the sliding block (51) is threadedly connected to 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) via a bearing bracket; the side of the sliding block (51) away from the inner wall of the housing (2) is rotatably connected to the limiting block (54).

4. The heavy steel plasma cutting machine according to claim 1, characterized in that: The buffer limiting structure (5) further comprises a clamping connection seat (55) fixedly connected to the upper end of the support platform (1), a plurality of clamping buffer components (57) are arranged in an array on a side of the clamping connection seat (55) away from the inner wall of the shell (2), a slide groove (52) is provided 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 slide groove (52), a spring block (561) is slidably connected to the inner corner of the L-shaped block (56), and a plurality of driving blocks (55) are slidably connected to the inner surface of the clamping connection seat (55). 3), the inner surface of the clamping connection seat (55) is symmetrically slidably connected to a cable (551) fixedly connected to the L-shaped block (56), and several driving blocks (553) are fixedly connected to the outer surface of the cable (551), and a wedge-shaped groove (554) is provided on the side of the driving block (553) close to the clamping buffer assembly (57), and the wedge-shaped groove (554) is slidably connected to the clamping buffer assembly (57), and the front side of the inner surface of the clamping connection seat (55) is fixedly connected to a spring rod (552) fixedly connected to the front driving block (553).

5. The heavy steel plasma cutting machine according to claim 4, characterized in that: The clamping buffer assembly (57) includes a mounting seat (571), and one end of the mounting seat (571) close to the clamping connecting seat (55) is fixedly connected to a second spring rod (576) fixedly connected to the clamping connecting seat (55) in a front-to-back symmetrical manner. The one end of the mounting seat (571) close to the clamping connecting seat (55) is fixedly connected to a contact rod (575) that extends from the outer surface of the clamping connecting seat (55) to the inner cavity of the clamping connecting seat (55) and fits with the inclined surface of the wedge-shaped groove (554). The inner surface of the mounting seat (571) is slidably connected to a contact block (572) 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 to a compression spring (573). The upper and lower parts of the inner surface of the mounting seat (571) are both symmetrically provided with two sliding grooves (5711). The inner surface of the mounting seat (571) is provided with a clamping component (574).

6. The heavy steel plasma cutting machine according to claim 5, characterized in that: The clamping component (574) includes a second liquid storage chamber (5745) symmetrically distributed in the front and back and opened at the upper end of the mounting seat (571) and three liquid storage chambers (5744) distributed in a triangular pattern in the inner cavity of the mounting seat (571). The three liquid storage chambers (5744) are all connected to the adjacent second slide groove (5711). The inner surfaces of the two second liquid storage chambers (5745) are slidably connected to the second piston rod (5746). The upper ends of the two second piston rods (5746) are fixedly connected to the clamping arms (5741). The inner surfaces of the second slide groove (5711) on both sides are slidably connected to the sliding rods (5746). 42), the outer surfaces of the two sliding rods (5742) are rotatably connected to the connecting rod (5747) rotatably connected to the contact block (572), the upper and lower parts of the inner surfaces of the two sliding rods (5742) are rotatably connected to the piston rod one (5743) slidably connected to the inner surface of the adjacent liquid storage chamber one (5744), the liquid storage chamber one (5744) located at the upper part is connected to the upper part of the inner cavity of the liquid storage chamber two (5745) through the connecting tube (5712), and the liquid storage chamber one (5744) located at the lower part is connected to the lower part of the inner cavity of the liquid storage chamber two (5745) through the connecting tube (5712).

7. The heavy steel plasma cutting machine according to claim 1, characterized in that: The slag cleaning structure (6) includes a cleaning member (62) that is slidably connected to the bottom wall of the inner surface of the support plate (11) and driven by the driving groove (14), and the upper end of the cleaning member (62) is linearly distributed and fixedly connected to a plurality of Y-shaped connecting rods (61), and the upper parts of the inner surfaces of the plurality of Y-shaped connecting rods (61) are rotatably connected to cleaning rings (63) that are sleeved on the outer surfaces of adjacent rollers (12).

8. The heavy steel plasma cutting machine according to claim 7, characterized in that: The front and rear parts of the inner surface of the cleaning member (62) are both slidably connected to a second sliding block (621), and the sides of the two second sliding blocks (621) away from each other are fixedly connected to a plurality of oscillation springs (623) fixedly connected to the adjacent inner wall of the cleaning member (62), and the lower ends of the two second sliding blocks (621) are both fixedly connected to a slag shovel (622) tightly attached to the bottom wall of the inner surface of the support plate (11), and the bottom edge of the side of the second sliding block (621) close to the slag box (13) does not contact the bottom wall of the support plate (11), and the middle part of the inner surface of the cleaning member (62) is rotatably connected to an elliptical block (624) driven by a motor, and the outer surface of the elliptical block (624) is tightly attached to the slag shovels (622) on both sides.

9. The heavy steel plasma cutting machine according to claim 8, characterized in that: The cleaning ring (63) includes a toothed disc (632) rotatably connected to the inner surface of the Y-shaped connecting rod (61); the inner surface of the toothed disc (632) is fixedly connected to a frosting sheet (631) that is in contact with the outer surface of the drum (12); both left and right ends of the toothed disc (632) are fixedly connected to limiting rings (634); the inner surface of the Y-shaped connecting rod (61) is rotatably connected to a gear (633) driven by a motor; the gear (633) is meshed with the toothed disc (632).

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