An adaptive flame cutting machine

Abstract

The invention discloses an adaptive flame cutting machine, comprising a base and a retaining frame arranged at the upper end of the base, a main supporting rail is arranged on the base at one side of the retaining frame, a secondary supporting rail is movably arranged on the other side of the base, a U-shaped telescopic frame is movably arranged on the main supporting rail and the retaining frame, a transmission component is arranged at the end of the U-shaped telescopic frame, an adaptive adjustment component is arranged at the lower end of the transmission component, and a sliding positioning component is connected between the main supporting rail, the secondary supporting rail and the U-shaped telescopic frame; the invention has a simple structure and a reasonable design, and realizes the effect of synchronous adaptive rotation adjustment of the cutting angle of the cutting torch according to the thickness of the cutting part of the plate, so that the cutting angle is always in the best state, the degree of automation and production efficiency are improved, and the overall cutting efficiency and cutting quality of the plate are significantly improved, and the cutting angle can also be limited to avoid over-adjustment.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to an adaptive flame cutting machine. Background Art

[0002] In modern industrial production, flame cutting machines, as important equipment in the field of metal processing, are widely used in automated production lines in industries such as steel, shipbuilding, and machinery manufacturing. With its efficient and flexible operating performance, it can achieve precise cutting of metal plates of various shapes and sizes, and is the key to improving production efficiency and product quality. However, with the continuous improvement of industrial production requirements for material processing accuracy and efficiency, traditional flame cutting machines have gradually revealed their limitations when dealing with diversified and complex processing tasks.

[0003] The traditional device has the following shortcomings:

[0004] At present, the common flame cutting machine is mainly composed of a feed assembly, a gas source, a cutting torch and a driving component. In the actual working process, the staff needs to preset the cutting angle of the cutting torch, and then feed the material along the cutting torch at a specified position through the feed assembly to achieve the cutting of the metal sheet. However, this traditional flame cutting machine still has significant defects. In order to ensure the best cutting effect, plates of different thicknesses will also have different requirements for cutting angles. When the thickness of the metal sheet is less than or equal to 3 mm, the best cutting angle is 45 degrees. When the thickness of the metal sheet is greater than or equal to 13 mm, the best cutting angle is 90 degrees. When the thickness of the metal sheet is between 3-13 mm, the cutting angle will also increase proportionally with the increase of thickness. Therefore, in the actual flame cutting process, if the thickness of the sheet changes each time the staff feeds, the cutting angle of the cutting torch needs to be reset. This is not only cumbersome to operate, but also reduces the degree of automation and production efficiency. And if the thickness of the sheet changes during the cutting process, then in the area where the thickness of the sheet does not meet the setting standard of the cutting angle, it may not be cut through or the cutting surface quality may be poor. Summary of the invention

[0005] The object of the present invention is to provide an adaptive flame cutting machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: an adaptive flame cutting machine, comprising a base and a holder arranged at the upper end of the base, a main support rail is arranged on one side of the holder on the base, a secondary support rail is movably arranged on the other side of the base, a U-shaped telescopic frame is movably arranged on the main support rail and the holder, a transmission assembly is arranged at the end of the U-shaped telescopic frame, an adaptive adjustment assembly for adjusting the flame height and angle is arranged at the lower end of the transmission assembly, and a sliding positioning assembly for adjusting the reference and controlling the feeding path is connected between the main support rail, the secondary support rail and the U-shaped telescopic frame;

[0007] The adaptive adjustment component includes:

[0008] An adjusting cylinder, wherein the adjusting cylinder is horizontally mounted on the upper part of the transmission assembly through a fixing frame, a vent hole is provided at one end of the adjusting cylinder, the cross section of the inner wall of the adjusting cylinder is non-circular, and an adjusting member is slidably and sealably connected inside the adjusting cylinder;

[0009] A limiting slide groove, wherein the limiting slide groove is horizontally provided on the outer wall of the adjusting cylinder, a driven slider is slidably connected in the limiting slide groove, and a mutually matching magnetic suction component is provided in the driven slider and the adjusting member to drive the two to move synchronously;

[0010] A touch rod, the touch rod is symmetrically arranged between the transmission components, a fixing rod is arranged at an upper end of the touch rod, a fixing sleeve is rotatably connected to the end of the fixing rod away from the touch rod, and a sliding sleeve is rotatably connected to the driven slider;

[0011] A cutting torch, wherein the lower end of the cutting torch is arranged in a fixed sleeve, the upper end of the cutting torch is slidably connected to a sliding sleeve, and the angle between the cutting torch and the horizontal plane is 45 degrees to 90 degrees.

[0012] Preferably, the transmission assembly includes:

[0013] A hydraulic cylinder, wherein the hydraulic cylinder is symmetrically arranged at the end of the U-shaped telescopic frame, the rod body of the touch rod is slidably sealed and connected to the cylinder wall of the hydraulic cylinder by setting a seal, a limit card is arranged at one end of the hydraulic cylinder away from the touch rod, and a compression spring is movably arranged between the limit card and the touch rod;

[0014] A mixing flow cylinder, wherein the mixing flow cylinder is installed on the upper part of the U-shaped telescopic frame through a bracket, one end of the mixing flow cylinder is connected to the liquid hole of the regulating cylinder through a conduit, the other end of the mixing flow cylinder is connected to a tee, one end of the tee is connected to the hydraulic cylinder liquid hole above the U-shaped telescopic frame through a conduit, the other end of the tee is connected to a telescopic tube, and the telescopic tube passes through a retaining frame and is connected to the hydraulic cylinder liquid hole below the U-shaped telescopic frame.

[0015] Preferably, the sliding positioning assembly includes:

[0016] A lifting rod, wherein the lifting rod is slidably connected in the holes at the upper ends of the main support rail and the auxiliary support rail, and a lifting and lowering pressure plate is provided at the upper end of the lifting rod, and a rolling component for reducing friction is provided on one side of the lifting and lowering pressure plate adjacent to the main support rail and the auxiliary support rail;

[0017] The hanging plates are respectively arranged on the end surfaces adjacent to the retaining frame and the lifting and lowering pressure plate and are located on both sides of the U-shaped telescopic frame. The lower end of the U-shaped telescopic frame is located below the hanging plate and pulleys are symmetrically arranged. The hanging plate on one side of the U-shaped telescopic frame is connected to a pull rope by passing through the pulley below.

[0018] Preferably, the end of the U-shaped telescopic frame is slidably connected to the vertical groove on one side of the retaining frame by providing a sliding block, a through groove is vertically opened on the main support rail, and the lower part of the U-shaped telescopic frame is arranged in the through groove.

[0019] Preferably, the height difference between the flame outlet at the lower end of the cutting torch and the contact end of the upper contact rod is 4 mm-7 mm.

[0020] Preferably, the flame outlet direction of the cutting torch is a direction away from the end of the feeler rod.

[0021] Preferably, the adjusting member is connected to the adjusting cylinder in a sliding and sealing manner by using a Gley ring sealing method.

[0022] Preferably, the telescopic tube is a spring telescopic hose and is kept in a tensioned state, the upper and lower ends of the U-shaped telescopic frame shell are respectively provided with positioning plates, a positioning rod is provided on one side of the positioning plate, and the spiral coil of the telescopic tube is sleeved on the positioning rod and movably passes through the through hole on the positioning plate.

[0023] Preferably, one side of the hydraulic cylinder, the mixing cylinder and the regulating cylinder is filled with hydraulic oil.

[0024] Preferably, the pull ropes on both sides of the pulley are perpendicular to the base.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention is provided with an adaptive adjustment component, which includes an adjustment cylinder, an adjustment member, a limit slide groove, a driven slider, a magnetic suction component, a touch rod, a fixed rod, a fixed sleeve, a sliding sleeve and a cutting torch, so as to achieve the effect of synchronously adaptively rotating and adjusting the cutting angle of the cutting torch according to the thickness of the cutting part of the plate. Even if the thickness of the plate changes during the cutting process, the cutting angle can be adjusted accordingly to ensure that it is always at the best cutting angle, thereby improving the automation degree and production efficiency of flame cutting, and significantly improving the overall cutting quality of the plate. Moreover, when the thickness of the plate is less than 3 mm or greater than 13 mm, the cutting angle can also be limited to avoid over-adjustment.

[0027] The present invention is provided with a transmission assembly, which includes a hydraulic cylinder, a limit card, a compression spring, a mixing cylinder, a tee and a telescopic tube, and utilizes the relative displacement of the upper and lower contact rods to drive the hydraulic oil to transfer between the adjustment cylinder and the hydraulic cylinder, thereby realizing efficient driving of the adaptive adjustment assembly. Moreover, since the transfer amount of the hydraulic oil is only affected by the displacement amount of the upper and lower contact rods, the cutting torch can be accurately adjusted in angle when facing plates of different thicknesses and when the thickness of the plates themselves changes symmetrically or asymmetrically, thereby further improving the cutting efficiency and quality of the flame cutting machine.

[0028] The present invention is provided with a sliding positioning component, which includes a lifting rod, a lifting pressure plate, a rolling component, a hanging piece, a pulley and a pull rope, so that the benchmark of the U-shaped telescopic frame can be actively adjusted according to the overall thickness of the plate to be cut, that is, the active adjustment of the benchmark of the adaptive adjustment component can significantly improve the adjustment range and adjustment limit of the adaptive adjustment component for plates with larger bending curvatures, thereby improving the overall adaptability and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall stereogram of the present invention;

[0030] Figure 2 It is a partial front view stereoscopic schematic diagram of the present invention;

[0031] Figure 3 It is a partial rear perspective schematic diagram of the present invention;

[0032] Figure 4 It is the overall front view of the present invention;

[0033] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0034] Figure 6 It is a three-dimensional schematic diagram of the transmission assembly and the adaptive adjustment assembly of the present invention;

[0035] Figure 7 It is a side view schematic diagram of the internal structure of the transmission assembly and the adaptive adjustment assembly of the present invention;

[0036] Figure 8 It is a front view schematic diagram of the internal structure of the regulating cylinder of the present invention;

[0037] Fig. 9 It is a schematic diagram of a cutting torch of the present invention with a cutting angle of 45 degrees;

[0038] Fig.10 It is a schematic diagram of the cutting angle of the cutting torch of the present invention being 45 degrees to 90 degrees;

[0039] Fig.11It is a schematic diagram of the cutting angle of the cutting torch of the present invention being 90 degrees;

[0040] Fig.12 It is a schematic diagram of asymmetric change of thickness of a plate of the present invention;

[0041] Fig.13 For the present invention Figure 7 A magnified schematic diagram at point A in FIG.

[0042] In the figure: 1. base; 2. retaining frame; 3. main support rail; 301. through groove; 4. auxiliary support rail; 5. U-shaped telescopic frame; 501. positioning plate; 502. positioning rod; 6. transmission assembly; 601. hydraulic cylinder; 602. limit card; 603. compression spring; 604. mixing cylinder; 605. tee; 606. telescopic tube; 7. adaptive adjustment assembly; 701. adjustment cylinder; 702. adjustment member; 703. limit slide groove; 704. driven slider; 705. magnetic suction assembly; 706. touch rod; 707. fixed rod; 708. fixed sleeve; 709. sliding sleeve; 710. cutting torch; 8. sliding positioning assembly; 801. lifting rod; 802. lifting and lowering pressure plate; 803. rolling part; 804. hanging piece; 805. pulley; 806. pull rope. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "disposed" with another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation in the specification, and therefore cannot be understood as limiting the present invention.

[0045] As a further improvement of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0046] See also Figure 1-13As shown, the present invention provides a technical solution for an adaptive flame cutting machine: an adaptive flame cutting machine, comprising a base 1 and a retaining frame 2 fixedly mounted on the upper end of the base 1, a main support rail 3 is fixedly mounted on one side of the retaining frame 2 on the base 1, and a secondary support rail 4 is mounted on the other side of the base 1 by opening a mounting groove, and the secondary support rail 4 can be horizontally moved on the base 1 to adapt to plates to be cut of different widths. A U-shaped telescopic frame 5 is movably mounted on the main support rail 3 and the retaining frame 2, a transmission assembly 6 is mounted on the end of the U-shaped telescopic frame 5, and an adaptive adjustment assembly 7 for adjusting the flame height and angle is mounted on the lower end of the transmission assembly 6, and the transmission assembly 6 drives the adaptive adjustment assembly 7 through hydraulic oil. A sliding positioning assembly 8 for adjusting the reference and controlling the feed path is connected between the main support rail 3, the secondary support rail 4 and the U-shaped telescopic frame 5;

[0047] The adaptive adjustment component 7 includes an adjustment cylinder 701, a limiting slide groove 703, a feeler rod 706 and a cutting torch 710. The adjustment cylinder 701 is horizontally mounted on the upper part of the transmission component 6 through a fixed frame. The adjustment cylinder 701 is slidably and sealably connected to the adjustment member 702. The cross section of the inner wall of the adjustment cylinder 701 is non-circular, which can effectively prevent the adjustment member 702 from rotating in the adjustment cylinder 701. A vent hole is provided at one end of the adjustment cylinder 701, and the vent hole is used to maintain the pressure balance in the adjustment cylinder 701 when the adjustment member 702 moves horizontally. The limiting slide groove 703 is horizontally provided on the outer wall of the adjustment cylinder 701. A driven slider 704 is slidably connected in the limiting slide groove 703. A matching magnetic attraction component 705 is installed in the driven slider 704 and the adjustment member 702 to drive the two to move synchronously. The magnetic attraction component 705 can be a permanent magnet or an electromagnet, or can be used in combination. The feeler rod 706 is symmetrically mounted between the transmission components 6. A fixing rod 707 is mounted on one end of the feeler rod 706 located at the top. A fixing sleeve 708 is rotatably connected to the end of the fixing rod 707 away from the feeler rod 706. A sliding sleeve 709 is rotatably connected to the driven slider 704. The lower end of the cutting torch 710 is fixedly mounted in the fixing sleeve 708 and can rotate around the mounting axis of the fixing sleeve 708. The upper end of the cutting torch 710 is slidably connected to the sliding sleeve 709. With the horizontal sliding of the driven slider 704, the upper end of the cutting torch 710 synchronously slides and retracts in the sliding sleeve 709 to achieve the effect of rotating to adjust the cutting angle. The angle between the cutting torch 710 and the horizontal plane is 45 degrees to 90 degrees.

[0048] When the plate to be cut passes between the ends of the upper and lower feeler rods 706, the flame ejected from the cutting torch 710 is used to cut the plate. When the thickness of the plate is less than 3 mm, the state of the cutting torch 710 is as follows: Fig. 9As shown, at this time, the cutting angle between the cutting torch 710 and the plate surface is 45 degrees. When the thickness of the plate is greater than 3 mm and less than 13 mm, due to the increase in the thickness of the plate, the distance between the ends of the feeler rod 706 at the upper and lower ends of the plate will also increase accordingly. At this time, under the action of the transmission component 6, hydraulic oil is injected from one end of the adjustment cylinder 701, pushing the adjustment member 702 to move to the right. The adjustment member 702 then pulls the driven slider 704 to move horizontally to the right synchronously through the attraction of the magnetic suction component 705, thereby achieving the effect of increasing the angle of the cutting torch 710 as the thickness of the steel increases. The state of the cutting torch 710 at this time is as shown in FIG. Fig.10 When the plate thickness is greater than or equal to 13 mm, the cutting angle of the cutting torch 710 is 90 degrees, and the state of the cutting torch 710 at this time is as follows: Fig.11 shown.

[0049] Regarding the adjusting cylinder 701, its inner length should be greater than the length of the limiting chute 703, and the opening position of the limiting chute 703 is close to the middle of the adjusting cylinder 701 to limit the cutting angle of the cutting torch 710. When the thickness of the plate is less than 3 mm, the adjusting member 702 is located on the left side of the adjusting cylinder 701. Due to the limiting effect of the limiting chute 703, the driven slider 704 will not continue to move to the left, ensuring that the cutting angle of the cutting torch 710 is not less than 45 degrees. Similarly, when the thickness of the plate is greater than 13 mm, although the adjusting member 702 is located on the right side of the adjusting cylinder 701, the cutting angle of the cutting torch 710 is not greater than 90 degrees. When the thickness of the plate is within the range of 3-13 mm, the adjusting member 702 moves to the inner side of the limiting chute 703 to capture and drive the driven slider 704 to move.

[0050] Through the adaptive adjustment component 7, the cutting angle of the cutting torch 710 is synchronously adaptively rotated and adjusted according to the thickness of the cutting part of the plate, so that the cutting angle is always in the best state, the degree of automation and production efficiency are improved, and the overall cutting quality of the plate is significantly improved. When the thickness of the plate is less than 3 mm or greater than 13 mm, the cutting angle can also be limited to avoid over-adjustment.

[0051] The transmission assembly 6 includes a hydraulic cylinder 601 and a mixing cylinder 604. The hydraulic cylinder 601 is fixedly installed at the end of the U-shaped telescopic frame 5 symmetrically from top to bottom. The rod body of the touch rod 706 is connected to the cylinder wall of the hydraulic cylinder 601 by sliding and sealing by setting a seal. The seal can be a sealing material such as a rubber piston or a sealing ring. A limit card 602 is fixedly installed at one end of the hydraulic cylinder 601 away from the touch rod 706. A through hole is opened on the limit card 602 for the circulation of hydraulic oil. A compression spring 603 is movably installed between the limit card 602 and the touch rod 706. The compression spring 603 always applies a certain pressure to the touch rod 706. The mixing cylinder 604 is installed on the upper part of the U-shaped telescopic frame 5 through a bracket, one end of the mixing cylinder 604 is connected to the liquid hole of the regulating cylinder 701 through a conduit, and the other end of the mixing cylinder 604 is connected to a tee 605, one end of the tee 605 is connected to the liquid hole of the hydraulic cylinder 601 above the U-shaped telescopic frame 5 through a conduit, and the other end of the tee 605 is connected to a telescopic tube 606, which passes through the retaining frame 2 and is connected to the liquid hole of the hydraulic cylinder 601 below the U-shaped telescopic frame 5. Under the action of the mixing cylinder 604, the tee 605, the telescopic tube 606 and the conduit, the connection between the two hydraulic cylinders 601 and the regulating cylinder 701 is realized. One side of the hydraulic cylinder 601, the mixing cylinder 604 and the regulating cylinder 701 is filled with hydraulic oil.

[0052] When the plate is being cut, both ends of the feeler rod 706 are pressed against the upper and lower ends near the cutting part of the plate. The thickness of the plate is different, and the length of the feeler rod 706 entering the hydraulic cylinder 601 to overcome the elastic force of the compression spring 603 is also different. The hydraulic oil will be transferred from the hydraulic cylinder 601 through the mixing cylinder 604 to the regulating cylinder 701, or from the regulating cylinder 701 to the hydraulic cylinder 601. Fig.12 As shown, since the hydraulic cylinder 601 and the feeler rod 706 are symmetrical up and down and have the same model, even when the plate is bent, and the thickness of the plate partially thickens upward or downward, including asymmetric thickness changes such as the thickness of the plate partially thins upward or downward, it can be ensured that the total amount of hydraulic oil discharged from the upper and lower hydraulic cylinders 601 can match the current thickness of the plate, thereby driving the cutting torch 710 to rotate to the most suitable angle.

[0053] Through the transmission component 6, the relative displacement of the upper and lower touch rods 706 is utilized to drive the hydraulic oil to transfer between the adjustment cylinder 701 and the hydraulic cylinder 601, thereby realizing efficient driving of the adaptive adjustment component 7. In addition, when facing plates of different thicknesses and symmetrical or asymmetrical changes in the thickness of the plates themselves, the cutting torch 710 can be accurately adjusted in angle, further improving the cutting efficiency and quality of the flame cutting machine.

[0054] The sliding positioning assembly 8 includes a lifting rod 801 and a hanging piece 804. The lifting rod 801 is slidably connected in the holes at the upper ends of the main support rail 3 and the auxiliary support rail 4. A lifting and lowering plate 802 is fixedly installed at the upper end of the lifting rod 801. A rolling component 803 for reducing friction is installed on one side of the lifting and lowering plate 802 adjacent to the main support rail 3 and the auxiliary support rail 4. The rolling component 803 is installed symmetrically up and down. When the plate is cut, both sides are supported by the rolling component 803, and the rolling component 803 can also significantly reduce the friction when feeding. The main support rail 3 and the auxiliary support rail 4 should also be installed with a limiter for limiting the two sides when feeding the plate. The hanging piece 804 is respectively fixed on the adjacent end faces of the retaining frame 2 and the lifting and pressing plate 802 and is located on both sides of the U-shaped telescopic frame 5. The lower end of the U-shaped telescopic frame 5 is located below the hanging piece 804 and a pulley 805 is symmetrically installed. The hanging piece 804 on one side of the U-shaped telescopic frame 5 passes through the pulley 805 below and is connected to a pull rope 806.

[0055] When there is no plate on the cutting machine, the contact points of the upper and lower rolling parts 803 and the contact points of the upper and lower contact rods 706 are on the same horizontal plane. When the plate to be cut needs to be loaded, that is, placed on the main support rail 3 and the auxiliary support rail 4, the horizontal position of the auxiliary support rail 4 is first adjusted, and the lifting rod 801 is lifted, and then the plate is placed between the rolling parts 803 and the lifting rod 801 is lowered to press the plate. In this process, the hanging piece 804 on one side of the lifting rod 801 drives the U-shaped telescopic frame 5 to rise as a whole through the pull rope 806 and the pulley 805. Since the pulley 805 is a movable pulley, the overall rising height of the U-shaped telescopic frame 5 is half of the rising height of the lifting rod 801, that is, half of the overall thickness of the plate. If the thickness of the plate is uneven, the rising height of the lifting rod 801 is the distance from the highest point to the lowest point of the cross section of the plate. That is to say, the center line of the U-shaped telescopic frame 5 is parallel to the center line of the cross section of the plate.

[0056] Through the sliding positioning component 8, it is possible to actively adjust the reference of the U-shaped telescopic frame 5 according to the overall thickness of the plate to be cut, that is, to actively adjust the reference of the adaptive adjustment component 7. When the bending curvature of the plate is large, the adjustment range of the adaptive adjustment component 7 can be significantly improved, thereby improving the overall adaptability and practicality of the equipment. For example, when the plate is an upward curved plate with a large curvature, if the reference of the adaptive adjustment component 7 cannot be adjusted, then its reference should be the support point of the main support rail 3 and the auxiliary support rail 4 for the plate. When the plate is cut, when the highest point of the plate is cut, the upper touch rod 706 needs to enter the hydraulic cylinder 601 to a large extent, and the lower touch rod 706 needs to extend out of the hydraulic cylinder 601 to a large extent. At this time, due to the reference offset, the telescopic stroke requirements of the upper and lower touch rods 706 are relatively high. In other words, if the reference of the adaptive adjustment component 7 cannot be adjusted, the curved plate that it can adapt to has a lower curvature limit.

[0057] The end of the U-shaped telescopic frame 5 is slidably connected to the vertical groove on one side of the retaining frame 2 by providing a slider. A through groove 301 is vertically provided on the main support rail 3. The lower part of the U-shaped telescopic frame 5 is movably installed in the through groove 301. The above constraints limit the U-shaped telescopic frame 5 to only drive the adaptive adjustment component 7 to move longitudinally for reference adjustment, and cannot move in the horizontal direction.

[0058] The height difference between the flame outlet at the lower end of the cutting torch 710 and the contact end of the upper contact rod 706 is the distance between the flame outlet of the cutting torch 710 and the surface of the plate. Since the lower end of the cutting torch 710 rotates with the mounting shaft of the fixed sleeve 708 as the axis, the height difference will float within a certain range. The range of the height difference can be adjusted by adjusting the length of the fixed rod 707, or adjusting the distance between the fixed sleeve 708 and the sliding sleeve 709, or adjusting the length of the limiting slide 703. The distance between the flame outlet of the cutting torch 710 and the surface of the plate is preferably 4 mm to 7 mm.

[0059] The flame direction of the cutting torch 710 is away from the end of the feeler rod 706, so that the end of the feeler rod 706 can be prevented from being burned by high temperature and the service life can be increased.

[0060] The adjusting member 702 is connected to the adjusting cylinder 701 by sliding sealing by using a Gly ring sealing method. The Gly ring sealing method is suitable for bidirectional sliding sealing and has good sealing performance and small friction.

[0061] The telescopic tube 606 is a spring telescopic hose and is kept in a tensioned state, ensuring that the telescopic tube 606 will not interfere with the telescopic and up and down movement of the U-shaped telescopic frame 5. When the cutting part needs to be adjusted and the end of the U-shaped telescopic frame 5 is telescopically adjusted, the telescopic tube 606 can be telescopically adjusted synchronously to match the U-shaped telescopic frame 5. The upper and lower ends of the U-shaped telescopic frame 5 shell are respectively fixedly mounted with positioning plates 501, and a positioning rod 502 is installed on one side of the positioning plate 501. The spiral ring of the telescopic tube 606 is sleeved on the positioning rod 502 and movably penetrates the through hole on the positioning plate 501. The positioning rod 502 can further ensure that the telescopic tube 606 will not sag or deviate left and right.

[0062] The pull ropes 806 on both sides of the pulley 805 are perpendicular to the base 1, which helps to improve the transmission efficiency and the accuracy of the reference adjustment of the adaptive adjustment component 7.

[0063] Working principle: When the cutting machine needs to cut metal plates, the horizontal position of the auxiliary support rail 4 is adjusted first, and the lifting rod 801 is lifted, and then the plate is placed between the rolling parts 803 and the lifting rod 801 is lowered to press the plate. In this process, the hanging piece 804 on one side of the lifting rod 801 drives the U-shaped telescopic frame 5 to rise as a whole through the pull rope 806 and the pulley 805, and the rising height is half of the overall thickness of the plate, thereby completing the reference adjustment of the adaptive adjustment component 7. And after the plate is loaded, the distance between the ends of the upper and lower touch rods 706 also increases accordingly. At this time, the touch rod 706 overcomes the elastic force of the compression spring 603 to inject hydraulic oil from one end of the adjustment cylinder 701, pushing the adjustment member 702 to move to the right, and the adjustment member 702 then pulls the driven slider 704 to move horizontally to the right synchronously through the attraction of the magnetic suction component 705, thereby achieving the angle adjustment of the cutting torch 710. If the thickness of the plate changes during the cutting process, whether it becomes thicker or thinner, the adjusting member 702 will also make a corresponding horizontal movement under the action of the hydraulic oil, and the cutting angle of the cutting torch 710 will also be adjusted synchronously.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive flame cutting machine, comprising a base (1) and a holder (2) arranged at the upper end of the base (1), a main support rail (3) being arranged on one side of the holder (2) on the base (1), and a secondary support rail (4) being movably arranged on the other side of the base (1), characterized in that: A U-shaped telescopic frame (5) is movably provided on the main support rail (3) and the retaining frame (2); a transmission assembly (6) is provided at the end of the U-shaped telescopic frame (5); a self-adaptive adjustment assembly (7) for adjusting the flame height and angle is provided at the lower end of the transmission assembly (6); a sliding positioning assembly (8) for adjusting the reference and controlling the feeding path is connected between the main support rail (3), the auxiliary support rail (4) and the U-shaped telescopic frame (5); The adaptive adjustment component (7) comprises: An adjusting cylinder (701), the adjusting cylinder (701) being horizontally mounted on the upper part of the transmission assembly (6) via a fixing frame, a vent hole being provided at one end of the adjusting cylinder (701), the cross section of the inner wall of the adjusting cylinder (701) being non-circular, and an adjusting member (702) being slidably and sealingly connected inside the adjusting cylinder (701); A limiting slide groove (703), wherein the limiting slide groove (703) is horizontally provided on the outer wall of the adjusting cylinder (701), a driven slider (704) is slidably connected in the limiting slide groove (703), and a mutually matching magnetic attraction component (705) is provided in the driven slider (704) and the adjusting member (702) for driving the two to move synchronously; A touch rod (706), the touch rod (706) being symmetrically arranged between the transmission components (6) in an upper and lower manner, a fixing rod (707) being arranged at an upper end of the touch rod (706), an end of the fixing rod (707) being rotatably connected to a fixing sleeve (708), and a sliding sleeve (709) being rotatably connected to the driven slider (704); A cutting torch (710), wherein the lower end of the cutting torch (710) is disposed in a fixed sleeve (708), the upper end of the cutting torch (710) is slidably connected to a sliding sleeve (709), and the angle between the cutting torch (710) and a horizontal plane is 45 degrees to 90 degrees; The transmission assembly (6) comprises: A hydraulic cylinder (601), the hydraulic cylinder (601) being symmetrically arranged at the end of the U-shaped telescopic frame (5) in an upper and lower manner, the rod body of the touch rod (706) being slidably sealedly connected to the cylinder wall of the hydraulic cylinder (601) by means of a sealing member, a limit clamp (602) being arranged at one end of the hydraulic cylinder (601) away from the touch rod (706), and a compression spring (603) being movably arranged between the limit clamp (602) and the touch rod (706); A mixing flow cylinder (604), wherein the mixing flow cylinder (604) is installed on the upper part of the U-shaped telescopic frame (5) via a bracket, one end of the mixing flow cylinder (604) is connected to the fluid hole of the regulating cylinder (701) via a conduit, the other end of the mixing flow cylinder (604) is connected to a tee (605), one end of the tee (605) is connected to the fluid hole of the hydraulic cylinder (601) above the U-shaped telescopic frame (5) via a conduit, the other end of the tee (605) is connected to a telescopic tube (606), and the telescopic tube (606) passes through a retaining frame (2) and is connected to the fluid hole of the hydraulic cylinder (601) below the U-shaped telescopic frame (5); The sliding positioning assembly (8) comprises: A lifting rod (801), the lifting rod (801) being slidably connected in holes at the upper ends of the main support rail (3) and the auxiliary support rail (4), a lifting and lowering plate (802) being provided at the upper end of the lifting rod (801), and a rolling component (803) for reducing friction being provided on one side of the surface of the lifting and lowering plate (802) adjacent to the main support rail (3) and the auxiliary support rail (4); Hanging pieces (804), the hanging pieces (804) are respectively arranged on the end surfaces adjacent to the retaining frame (2) and the lifting and pressing plate (802) and are located on both sides of the U-shaped telescopic frame (5); the lower end of the U-shaped telescopic frame (5) is located below the hanging piece (804) and is symmetrically provided with pulleys (805); the hanging piece (804) on one side of the U-shaped telescopic frame (5) passes through the pulley (805) below and is connected to a pull rope (806); The end of the U-shaped telescopic frame (5) is slidably connected to the vertical groove on one side of the retaining frame (2) by providing a sliding block, a through groove (301) is vertically provided on the main support rail (3), and the lower part of the U-shaped telescopic frame (5) is arranged in the through groove (301).

2. The adaptive flame cutting machine according to claim 1, characterized in that: The height difference between the flame outlet at the lower end of the cutting torch (710) and the contact end of the upper contact rod (706) is 4 mm to 7 mm.

3. The adaptive flame cutting machine according to claim 1, characterized in that: The flame emission direction of the cutting torch (710) is a direction away from the end of the feeler rod (706).

4. The adaptive flame cutting machine according to claim 1, characterized in that: The regulating member (702) is connected to the regulating cylinder (701) in a sliding and sealing manner by using a Gley ring sealing method.

5. The adaptive flame cutting machine according to claim 1, characterized in that: The telescopic tube (606) is a spring telescopic hose and is maintained in a tensioned state. Positioning plates (501) are respectively provided at the upper and lower ends of the shell of the U-shaped telescopic frame (5). A positioning rod (502) is provided on one side of the positioning plate (501). The spiral ring of the telescopic tube (606) is sleeved on the positioning rod (502) and movably penetrates the through hole on the positioning plate (501).

6. The adaptive flame cutting machine according to claim 1, characterized in that: One side of the interior of the hydraulic cylinder (601), the mixing cylinder (604) and the regulating cylinder (701) is filled with hydraulic oil.

7. The adaptive flame cutting machine according to claim 1, characterized in that: The pull ropes (806) on both sides of the pulley (805) are perpendicular to the base (1).

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