Steel pipe laser cutting device

Abstract

The utility model discloses a steel pipe laser cutting device, which belongs to the field of steel pipe cutting and comprises a feeding mechanism, a lifting rotation mechanism, a lifting floating roller mechanism and a laser cutting mechanism, the feeding mechanism comprises at least two conveying components with the conveying direction perpendicular to the axial direction, and the lifting rotation mechanism comprises a rotation component and a first lifting component. The autorotation component comprises a first rotating piece and a second rotating piece which are vertically arranged at an interval. The lifting floating roller mechanisms are arranged on one side of the lifting rotation mechanism at intervals in the axial direction. The laser cutting mechanism is arranged at one end of the steel pipe and used for cutting the end of the steel pipe. The utility model provides a steel pipe laser cutting device which not only can realize automatic feeding of steel pipes, but also can realize stable and accurate positioning of the steel pipes in a steel pipe laser cutting process, and can ensure that the steel pipes can stably rotate around a central shaft, so that the cutting precision and the working efficiency of the steel pipes are effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe cutting, and specifically relates to a steel pipe laser cutting device. Background Art

[0002] In the field of steel pipe cutting, with the development of industrial automation and laser technology, automated cutting systems have gradually been widely used. The laser cutting process, due to its advantages of high precision and non-contact, is more suitable for cutting steel pipes. Especially in the field of metal processing technology, the use of laser equipment for the processing and cutting of non-ferrous metals can achieve better cutting performance.

[0003] In the prior art, the traditional steel pipe laser cutting device needs to use a chuck to clamp the steel pipe, and then the chuck is rotated to synchronously drive the steel pipe to rotate around the central axis. However, the method of using the chuck to clamp and position the steel pipe and the chuck to drive the steel pipe to rotate around the central axis often has problems such as inaccurate positioning and shaking when the steel pipe rotates, which leads to inaccurate cutting and low cutting quality during the steel pipe laser cutting process. In addition, the use of a chuck to clamp the steel pipe also cannot achieve automatic feeding of the steel pipe. Utility Model Content

[0004] In response to one or more of the above defects or improvement needs in the prior art, the utility model provides a steel pipe laser cutting device, which can not only realize automatic loading of steel pipes, but also achieve stable and accurate positioning of the steel pipes during the steel pipe laser cutting process, and can also ensure that the steel pipes can stably rotate around the central axis, thereby effectively improving the cutting accuracy and work efficiency of the steel pipes and reducing production costs.

[0005] To achieve the above-mentioned purpose, the utility model provides a steel tube laser cutting device for automatically cutting a steel tube extending along an axial direction, comprising:

[0006] A feeding mechanism, the feeding mechanism comprising at least two conveying members whose transport directions are perpendicular to the axial direction, the conveying members being provided with at least one limiting space, and the steel pipes passing through the limiting space in sequence;

[0007] A lifting and rotating mechanism, the lifting and rotating mechanism comprising a rotating member and a first lifting member, the rotating member comprising a first rotating member and a second rotating member arranged vertically at intervals, the first rotating member being fixed on a first lifting end of the first lifting member, the steel pipe being arranged between the first rotating member and the second rotating member, and driving the steel pipe to rotate around a central axis;

[0008] At least one lifting floating roller mechanism, each of which is axially spaced apart and arranged on one side of the lifting rotation mechanism, and the top end of the lifting floating roller mechanism is telescopic and supports the steel pipe;

[0009] A laser cutting mechanism is arranged at one end of the steel pipe and is used for cutting the end of the steel pipe.

[0010] As a further preferred embodiment of the present invention, the feeding mechanism further includes at least one feeding driving component, and the rotating end of the feeding driving component cooperates with at least one of the conveying components to drive the conveying component to reciprocate in the lateral direction.

[0011] As a further preferred embodiment of the present invention, the conveying member comprises a chain, and the chain is provided with at least two grabs extending in the vertical direction, and the limiting space is formed between two adjacent grabs.

[0012] As a further preferred embodiment of the utility model, a plurality of the pulling grabs are arranged on the chain, and the pulling grabs are evenly spaced in the transverse direction, and the distance between two adjacent pulling grabs is greater than the diameter of the steel pipe.

[0013] As a further preferred embodiment of the present invention, a first support plate is provided on the first telescopic end, the first lifting member is fixed on a first bracket, and at least one first guide member is provided between the first bracket and the first support plate.

[0014] As a further preferred embodiment of the present invention, the first rotating member includes two rotating wheels, and at least one rotating wheel of the first rotating member is connected to the first right-angle reduction motor.

[0015] As a further preferred embodiment of the present invention, the floating roller lifting mechanism includes a second lifting component, the second lifting component is fixed on a second bracket, and at least one second guide component is provided between the second telescopic end of the second lifting mechanism and the second bracket.

[0016] As a further preferred embodiment of the present invention, it further comprises at least one lifting longitudinal conveying mechanism, and each of the lifting longitudinal conveying mechanisms is axially spaced apart and arranged on a side of the lifting rotation mechanism away from the laser cutting mechanism.

[0017] As a further preferred embodiment of the present invention, the lifting longitudinal conveying mechanism includes a third lifting component, and a V-shaped wheel with a rotating shaft perpendicular to the central axis of the steel pipe is arranged on the third telescopic end of the third lifting component, and a second right-angle reduction motor is arranged corresponding to the V-shaped wheel.

[0018] As a further preferred embodiment of the present invention, the laser cutting mechanism includes a lead screw module and a laser cutting head arranged on the moving end of the lead screw module.

[0019] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0020] (1) The steel pipe laser cutting device of the utility model includes a feeding mechanism, a lifting and rotating mechanism, a lifting and floating roller mechanism and a laser cutting mechanism. The feeding mechanism includes at least two conveying components whose transport directions are perpendicular to the axial direction. The lifting and rotating mechanism includes a rotating component and a first lifting component. The rotating component includes a first rotating member and a second rotating member arranged at intervals in vertical direction. Each lifting and floating roller mechanism is arranged at intervals in the axial direction on one side of the lifting and rotating mechanism. The laser cutting mechanism is arranged at one end of the steel pipe for cutting the end of the steel pipe. The steel pipe laser cutting device can not only realize automatic feeding of the steel pipe, but also realize stable and accurate positioning of the steel pipe during the steel pipe laser cutting process, and can also ensure that the steel pipe can stably rotate around the central axis, effectively improving the cutting accuracy and work efficiency of the steel pipe and reducing the production cost.

[0021] (2) The steel pipe laser cutting device of the utility model provides a high auxiliary bracket on one side of the conveying member, so that the steel pipe can be supported by the auxiliary bracket, and at the same time, combined with the lateral force of the conveying member, the steel pipe can achieve stable lateral movement. In addition, the lifting member driven by the lifting self-rotation mechanism, the lifting floating roller mechanism and the lifting longitudinal conveying mechanism will not interfere with the transportation of the steel pipe during the transportation of the steel pipe, and when the three need to work, the steel pipe can be lifted by lifting to separate from the auxiliary bracket, so as to facilitate the rotation or longitudinal transportation of the steel pipe.

[0022] (3) The steel pipe laser cutting device of the utility model has a simple structure, is easy to use, and has accurate cutting. It is provided with a plurality of chain-type conveying components with claws, so that the chain-type conveying components can fit the shape of the steel pipe column, ensuring accurate horizontal transportation of the steel pipe. At the same time, combined with a plurality of lifting longitudinal conveying mechanisms arranged on one side of the chain-type conveying component, the longitudinal position of the steel pipe can be adjusted after one end of the steel pipe is cut, which is convenient for cutting the steel pipe at the other end. In addition, combined with a lifting self-rotating mechanism including a first rotating member and a second rotating member, the steel pipe can be stably clamped and fixed by the first rotating member and the second rotating member before laser cutting. At the same time, through a plurality of lifting floating roller mechanisms coaxially arranged along the longitudinal direction, adaptive support is completed for the end of the steel pipe that is not clamped by the lifting self-rotating mechanism, so that the steel pipe can stably realize the rotation around the central axis in the horizontal plane, and then provide a stable steel pipe clamping foundation for accurate cutting of the steel pipe, while improving the cutting efficiency of the steel pipe and ensuring the cutting quality of the steel pipe end, which has good use value and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the overall structure of the steel pipe laser cutting device in the embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of a conveying component of a steel pipe laser cutting device in an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the laser cutting mechanism of the steel pipe laser cutting device in the embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the lifting and rotating mechanism of the steel pipe laser cutting device in the embodiment of the utility model;

[0027] Figure 5 It is a schematic diagram of the lifting floating roller mechanism of the steel pipe laser cutting device in the embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the lifting and longitudinal conveying mechanism of the steel pipe laser cutting device in the embodiment of the utility model;

[0029] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0030] 1. Feeding mechanism; 11. Clamp; 12. Pulling and grabbing;

[0031] 2. Laser cutting mechanism; 21. Laser bracket; 22. Lead screw module; 23. Adapter plate; 24. Laser cutting head;

[0032] 3. Lifting and rotating mechanism; 31. First bracket; 32. First support plate; 33. Driving wheel; 34. Driven wheel; 35. Synchronous belt; 36. First right-angle reduction motor; 37. First guide member; 38. First lifting member; 39. L-shaped frame;

[0033] 4. Lifting floating roller mechanism; 41. Second bracket; 42. Second lifting member; 43. Second support plate; 44. Coupling; 45. Counter roller;

[0034] 5. Lifting longitudinal conveying mechanism; 51. Third bracket; 52. Third lifting member; 53. Second right-angle reduction motor; 54. V-shaped wheel; 55. Third support plate; 56. Third guide member;

[0035] 6. Auxiliary bracket. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model 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 utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] Example:

[0042] See also Figures 1 to 6 The steel pipe laser cutting device in the preferred embodiment of the utility model can not only realize automatic feeding of steel pipes, but also can realize stable and accurate positioning of steel pipes during the steel pipe laser cutting process, and can also ensure that the steel pipe can stably rotate around the central axis, effectively improving the cutting accuracy and work efficiency of the steel pipe and reducing production costs.

[0043] Specifically, in the preferred embodiment of the present application, the steel pipe laser cutting device includes a feeding mechanism 1, a lifting and rotating mechanism 3, at least one lifting and floating roller mechanism 4 and a laser cutting mechanism 2. The feeding mechanism 1 is used to automatically load and unload the steel pipe before and after cutting to the work station. Specifically, the feeding mechanism 1 includes at least two conveying components whose transportation directions are perpendicular to the axial direction of the steel pipe. At least one limiting space is provided on the conveying component. The steel pipe in the loading and unloading process passes through the limiting space in each conveying component, thereby driving the steel pipe to move in the lateral direction.

[0044] The lifting and rotating mechanism 3 includes a self-rotating component and a first lifting component 38. The self-rotating component includes a first rotating component and a second rotating component that are spaced apart. The first rotating component is fixed to the first lifting end of the first lifting component 38. The lifting of the first lifting end drives the first rotating component to move relative to the second rotating component. At the same time, the steel pipe is arranged between the first rotating component and the second rotating component. The first lifting end drives the first rotating component to move, so that the first rotating component and the second rotating component can stably press against the outer wall of the steel pipe to achieve stable positioning of one end of the corresponding steel pipe. At the same time, the steel pipe can also be propped up so that the steel pipe can be separated from the conveying component. Accordingly, combined with the rotation of the first rotating component and / or the second rotating component, the steel pipe clamped between the two can maintain accurate positioning while achieving stable rotation.

[0045] At the same time, at least one lifting floating roller mechanism 4 is axially spaced apart on one side of the lifting and rotating mechanism 3, and each lifting floating roller mechanism 4 is lifted and lowered synchronously with the lifting and rotating mechanism 3, that is, the top end of each lifting floating roller mechanism 4 is extended and retracted, so that when the lifting and rotating mechanism 3 lifts one end of the steel pipe, the other end of the steel pipe can be lifted by the lifting floating roller mechanism 4, thereby ensuring that the steel pipe can be rotated around the central axis in a horizontal state.

[0046] Correspondingly, the laser cutting mechanism 2 is arranged at one end of the steel pipe for cutting the end of the steel pipe after the loading is completed.

[0047] It is worth noting that in the preferred embodiment of the present application, the steel pipe extends longitudinally, the direction perpendicular to the longitudinal direction in the horizontal plane is the transverse direction, and the direction perpendicular or vertical to the horizontal plane is the longitudinal direction.

[0048] Furthermore, in a preferred embodiment of the present application, the feeding mechanism 1 includes at least one feeding drive member, the rotating end of which cooperates with at least one conveying member, so that the conveying member can drive the steel pipe located in the limited space to reciprocate in the lateral direction under the driving action of the rotating end.

[0049] Further preferably, in the preferred embodiment of the present application, the conveying member includes a chain, and at least two pull-out grips 12 extending in the vertical direction are arranged on the chain, so as to form a limited space between two adjacent pull-out grips 12. Preferably, a plurality of pull-out grips 12 are evenly spaced in the horizontal direction on a single chain, and the spacing between two adjacent pull-out grips 12 is greater than the diameter of the steel pipe, so that the steel pipe can be placed in the positioning space formed by the two adjacent pull-out grips 12. Further preferably, a ratchet is arranged on the rotating end of the feeding drive member, and the ratchet is matched with the chain, so that the rotating end can drive the chain to reciprocate in the horizontal direction.

[0050] In more detail, in a preferred embodiment of the present application, the chain includes a plurality of double-layer plywood 11 hinged end to end, and accordingly, an installation space is formed between two longitudinally spaced plywood 11, and the end of the pull grip 12 is fixed in the installation space. Preferably, the pull grip 12 is fixed to the plywood 11 by a bolt assembly or a rivet assembly.

[0051] Further, at least one auxiliary bracket 6 is provided on at least one side of the conveying member, and the auxiliary bracket 6 is a door-type structure. Preferably, the vertical height of the crossbeam at the top of the auxiliary bracket 6 is greater than the vertical height of the conveying member, and is used to assist in supporting the steel pipe. Further preferably, a pressure switch is provided at the position of the auxiliary bracket 6 corresponding to the laser cutting mechanism 2, which is used to determine the position of the steel pipe and control the movement of the lifting and rotating mechanism 3, the lifting and floating roller mechanism 4 and the laser cutting mechanism 2.

[0052] Further, in the preferred embodiment of the present application, a first support plate 32 is provided on the first telescopic end of the lifting and rotating mechanism 3, and the first rotating member is fixed on the top surface of the first supporting plate 32, so that the first telescopic end can stably carry the first rotating member, thereby enabling the first rotating member to achieve reciprocating motion in the vertical direction. The first lifting member 38 is fixed on the first bracket 31, the first bracket 31 is fixedly mounted on the ground, and the first bracket 31 and the laser cutting mechanism 2 are kept on the same axis to provide stable support for the first lifting member 38. At the same time, at least one first guide member 37 is provided between the first bracket 31 and the first supporting plate 32. Preferably, the first guide member 37 includes a guide cylinder fixedly mounted on the first bracket 31 and extending vertically, and one end is fixed on the first supporting plate 32, and the other end extends vertically and passes through the guide rod, so as to ensure that the first lifting member 38 can support the first rotating member to reciprocate vertically.

[0053] Further preferably, in the preferred embodiment of the present application, the first rotating member includes at least two rotating wheels arranged side by side, and the axial direction of each rotating wheel is along the longitudinal direction. Accordingly, at least one rotating wheel on each rotating wheel is connected to the first right-angle reduction motor 36, and then the first rotating member and the second rotating member abut against the steel pipe, and the steel pipe can be driven to rotate by the first right-angle reduction motor 36. In a specific embodiment of the present application, the first rotating member includes two rotating wheels arranged side by side, which are a driving wheel 33 and a driven wheel 34, respectively. The driving wheel 33 is connected to the first right-angle reduction motor 36, and a synchronous belt 35 is arranged on the outside of the driving wheel 33 and the driven wheel 34.

[0054] In more detail, in the preferred embodiment of the present application, the second rotating member includes an L-shaped frame 39 and at least two rotating wheels, wherein the L-shaped frame 39 extends vertically, a crossbeam is disposed at the top of the L-shaped frame 39, two rotating wheels are disposed side by side below the crossbeam, and the rotating axes of the two rotating wheels are both longitudinally. Preferably, the two rotating wheels on the second rotating member are disposed vertically above the top surface of the first rotating member.

[0055] Further, in the preferred embodiment of the present application, the lifting floating roller mechanism 4 includes a second lifting member 42, the second lifting member 42 is fixed to the second bracket 41, the top end of the second lifting mechanism is provided with a second telescopic end, and at the same time, a second support plate 43 extending in the horizontal direction is provided on the second lifting end, and at least one second guide member is provided between the second support plate 43 on the second telescopic end and the second bracket 41. Preferably, the second guide member includes a guide cylinder fixedly mounted on the second bracket 41 and extending in the vertical direction, and a first end fixed to the second support plate 43, and the other end extending in the vertical direction and passing through the guide rod, so as to ensure that the second lifting member 42 can drive the second support plate 43 to reciprocate in the vertical direction.

[0056] Further preferably, in the preferred embodiment of the present application, four second lifting members 42 are arranged between the support plate and the second bracket 41 . Preferably, the second lifting members 42 are arranged correspondingly at the four corners of the support plate.

[0057] Further, in another preferred embodiment of the present application, at least one worm screw elevator is provided between the four second lifting members 42. A coupling 44 is provided between the worm screw elevator and the other second lifting members 42, so that an effective number of worm screw elevators can be lifted synchronously.

[0058] Further preferably, in the preferred embodiment of the present application, at least one pair of rollers 45 is provided on the second support plate 43, which is used to stably support the other end of the steel pipe by lifting the pair of rollers 45 on the floating roller mechanism 4 after one end of the steel pipe is fixed by the lifting rotation mechanism 3. Preferably, a flexible member is provided between the pair of rollers 45 and the second support plate 43, so as to provide flexible support for the steel pipe, thereby ensuring the accuracy of steel pipe cutting.

[0059] In more detail, in a preferred embodiment of the present application, the steel tube laser cutting mechanism 2 also includes two lifting floating roller mechanisms 4, and the two lifting floating roller mechanisms 4 are arranged at intervals in the longitudinal direction to provide stable support for the steel tube.

[0060] Furthermore, in a preferred embodiment of the present application, the steel tube laser cutting mechanism 2 further includes at least one lifting longitudinal conveying mechanism 5, and each lifting longitudinal conveying mechanism 5 is axially spaced apart on the side of the lifting rotation mechanism 3 away from the laser cutting mechanism 2. Preferably, the lifting longitudinal conveying mechanism 5 is located on the same longitudinal line as the lifting rotation mechanism 3 and the lifting floating roller mechanism 4, or the lifting longitudinal conveying mechanism 5 is located on different longitudinal lines as the lifting rotation mechanism 3 and the lifting floating roller mechanism 4. Preferably, a pressure switch is also provided on the auxiliary bracket 6 at a position corresponding to the lifting longitudinal conveying mechanism 5, for automatically starting and stopping the lifting longitudinal conveying mechanism 5.

[0061] Further preferably, the lifting longitudinal conveying mechanism 5 includes a third lifting component 52, a third lifting end is arranged on the top of the third lifting component 52, a V-shaped wheel 54 whose rotating shaft is perpendicular to the central axis of the steel pipe is arranged on the third telescopic end of the third lifting component 52, and a second right-angle reduction motor 53 is arranged corresponding to the V-shaped wheel 54, and the rotating shaft of the second right-angle reduction motor 53 is connected to the rotating shaft of the V-shaped wheel 54, so that the second right-angle reduction motor 53 can drive the V-shaped wheel 54 to rotate, thereby driving the steel pipe arranged on the V-shaped wheel 54 to reciprocate longitudinally.

[0062] In more detail, in the preferred embodiment of the present application, the third lifting member 52 is fixed on the third bracket 51 , and at the same time, a third support plate 55 is provided on the telescopic end of the third lifting member 52 , and the mounting frame of the V-shaped wheel 54 is fixed on the third support plate 55 .

[0063] Further preferably, in the preferred embodiment of the present application, a third guide member 56 is arranged between the third support plate 55 and the third bracket 51. Preferably, the third guide member 56 includes a guide cylinder fixedly installed on the third bracket 51 and extending vertically, and one end is fixed on the third support plate 55 and the other end extends vertically and passes through the guide rod, thereby ensuring that the third lifting member 52 can support the third support plate 55 to reciprocate vertically.

[0064] Further, the laser cutting mechanism 2 includes a lead screw module 22 and a laser cutting head 24 disposed on the moving end of the lead screw module 22. Preferably, the laser cutting mechanism 2 also includes a laser bracket 21 and an adapter plate 23, the laser bracket 21 extends vertically, the lead screw module 22 is arranged at the top of the laser bracket 21 in the longitudinal direction, and the adapter plate 23 is installed on the moving end of the lead screw module 22, and the laser cutting head 24 with the cutting direction facing vertically downward is installed on the adapter plate 23.

[0065] Further, in another preferred embodiment of the present application, laser cutting mechanisms 2 are provided at both longitudinal ends of the steel pipe, that is, two laser cutting mechanisms 2 are provided at the same time, and the two laser cutting mechanisms 2 are not provided in the same longitudinal direction, and are respectively used to cut the two ends of the steel pipe. Preferably, between the two laser cutting mechanisms 2, two lifting self-transmission mechanisms, two groups of lifting floating roller mechanisms 4 provided at intervals in the longitudinal direction, and two groups of lifting longitudinal conveying mechanisms 5 provided at intervals in the longitudinal direction are provided at intervals in the transverse direction, and are respectively used for the self-rotation of the steel pipe and the longitudinal movement of the steel pipe in the process of cutting the two ends of the steel pipe.

[0066] The steel pipe laser cutting device in the utility model has a simple structure, is convenient to use, and has accurate cutting. It is provided with a plurality of chain-type conveying components with claws, so that the chain-type conveying components can fit the shape of the steel pipe column, and ensure the accurate transportation of the steel pipe in the horizontal direction. At the same time, combined with a plurality of lifting longitudinal conveying mechanisms 5 arranged on one side of the chain-type conveying component, the longitudinal position of the steel pipe can be adjusted after the cutting of one end is completed, which is convenient for the cutting of the steel pipe at the other end. In addition, combined with the lifting self-rotating mechanism including the first rotating member and the second rotating member, the steel pipe can be stably clamped and fixed by the first rotating member and the second rotating member before laser cutting. At the same time, through a plurality of lifting floating roller wheel mechanisms 4 coaxially arranged along the longitudinal direction, the end of the steel pipe that is not clamped by the lifting self-rotating mechanism 3 is adaptively supported, so that the steel pipe can stably realize the rotation around the central axis in the horizontal plane, and then provide a stable steel pipe clamping foundation for the accurate cutting of the steel pipe, while improving the cutting efficiency of the steel pipe and ensuring the cutting quality of the steel pipe end, and has good use value and promotion prospects.

[0067] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel tube laser cutting device, used for automatic cutting of axially extending steel tubes, characterized in that: include: A feeding mechanism, the feeding mechanism comprising at least two conveying members whose transport directions are perpendicular to the axial direction, the conveying members being provided with at least one limiting space, and the steel pipes passing through the limiting space in sequence; A lifting and rotating mechanism, the lifting and rotating mechanism comprising a rotating member and a first lifting member, the rotating member comprising a first rotating member and a second rotating member arranged vertically at intervals, the first rotating member being fixed on a first lifting end of the first lifting member, the steel pipe being arranged between the first rotating member and the second rotating member, and driving the steel pipe to rotate around a central axis; At least one lifting floating roller mechanism, each of which is axially spaced apart and arranged on one side of the lifting rotation mechanism, and the top end of the lifting floating roller mechanism is telescopic and supports the steel pipe; A laser cutting mechanism is arranged at one end of the steel pipe and is used for cutting the end of the steel pipe.

2. The steel tube laser cutting device according to claim 1, wherein: The feeding mechanism further comprises at least one feeding driving member, the rotating end of which cooperates with at least one of the conveying members to drive the conveying member to reciprocate in the lateral direction.

3. The steel tube laser cutting device according to claim 2, wherein: The conveying member comprises a chain, and at least two pulling grips extending in the vertical direction are arranged on the chain, and the limiting space is formed between two adjacent pulling grips.

4. The steel tube laser cutting device according to claim 3, wherein: A plurality of pulling grippers are arranged on the chain, and the pulling grippers are evenly spaced in the transverse direction, and the distance between two adjacent pulling grippers is greater than the diameter of the steel pipe.

5. The steel pipe laser cutting device according to any one of claims 1 to 4, wherein: A first support plate is disposed on the first lifting end, the first lifting component is fixed on a first bracket, and at least one first guide component is disposed between the first bracket and the first support plate.

6. The steel tube laser cutting device according to claim 5, wherein: The first rotating member includes two rotating wheels, and at least one rotating wheel of the first rotating member is connected to the first right-angle reduction motor.

7. The steel tube laser cutting device according to any one of claims 1 to 4 and 5, wherein: The lifting floating roller mechanism comprises a second lifting component, the second lifting component is fixed on a second bracket, and at least one second guide component is arranged between a second telescopic end of the second lifting component and the second bracket.

8. The steel pipe laser cutting device according to any one of claims 1 to 4 and 5, wherein: It also includes at least one lifting longitudinal conveying mechanism, and each of the lifting longitudinal conveying mechanisms is axially spaced and arranged on a side of the lifting rotation mechanism away from the laser cutting mechanism.

9. The steel tube laser cutting device according to claim 8, wherein: The lifting longitudinal conveying mechanism includes a third lifting component, a V-shaped wheel with a rotating shaft perpendicular to the central axis of the steel pipe is arranged on the third telescopic end of the third lifting component, and a second right-angle reduction motor is arranged corresponding to the V-shaped wheel.

10. The steel pipe laser cutting device according to any one of claims 1 to 4, wherein: The laser cutting mechanism comprises a lead screw module and a laser cutting head arranged on the moving end of the lead screw module.

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