A composite blanking support device, a laser tube cutting machine tool, and a tube processing method.

Abstract

This invention provides a composite blanking support device, a laser tube cutting machine, and a tube processing method, relating to the field of laser processing. The solution includes: a base frame; a receiving plate mounted on the base frame, movable along the Y and Z directions; at least two receiving rollers mounted on the base frame, each movable independently along the X and Z directions; the receiving plate movable to the Y-direction side of the receiving rollers, and the receiving rollers movable to the X-direction side of the receiving plate. This invention dynamically adjusts the support point position according to the length and extension length of the finished tube, ensuring stable support during processing and guaranteeing processing quality.

Description

Technical Field

[0001] This invention relates to the field of laser processing, and in particular to a composite blanking support device, a laser tube cutting machine tool, and a tube processing method. Background Technology

[0002] Traditional two-chuck laser cutting machines for pipes often encounter difficulties in providing adequate support and stabilization for the pipes during the cutting process. Furthermore, when cutting extremely heavy and thick pipes, the center of gravity of these pipes is relatively high, which can easily cause the center of gravity to exceed the support points of the two chucks, resulting in a prying phenomenon.

[0003] A large-scale tube laser cutting machine is provided in the related technology, including a loading bed and a unloading bed; a crossbeam is provided at the left end of the loading bed, and a cutting head assembly is provided on the crossbeam; multiple follow-up support mechanisms are arranged at intervals along the length of the loading bed, and the follow-up support mechanisms can be selectively raised to follow and support the tube to be cut; a first chuck and a second chuck are slidably mounted on the loading bed to clamp and transport the tube to the cutting head assembly; a follow-up unloading mechanism is provided on the left side of the loading bed, and the unloading bed is provided on the left side of the follow-up unloading mechanism, with the upper surface of the unloading bed inclined forward. The unloading ramp has multiple follow-up unloading mechanisms 2 spaced along its length inside the unloading bed. The unloading ramp has lifting grooves for the follow-up unloading mechanisms 2 to pass through. Follow-up unloading mechanisms 1 and 2 can be selectively raised to follow up and unload the finished pipes after cutting. This solution significantly reduces the overall height of the loading and unloading bed, achieving ultra-low horizontal loading and unloading. In other words, the center of gravity is lower and the stability is better when cutting heavy and thick pipes. Only two chucks are needed to load and unload large pipes, which simplifies the structure of the pipe laser cutting machine and reduces the overall manufacturing cost.

[0004] When processing long finished pipe fittings using the above technical solution, the laser cutting machine continuously extends the pipe into the front chuck assembly under the control of the program. On the one hand, because the finished pipe fitting is long, when the end of the finished pipe fitting exceeds the last raised follower feeding mechanism 2, it is no longer possible to support the position near the end of the finished pipe fitting, causing sagging and affecting the processing accuracy. On the other hand, the support positions of multiple follower feeding mechanisms 2 are fixed, and the support position for the extended pipe fitting is fixed. As the pipe fitting continues to extend, it is impossible to guarantee stable support throughout the entire process, resulting in unstable processing quality. Summary of the Invention

[0005] To address the technical problem of the inability to provide stable support for long pipe fittings in the prior art, this invention provides a composite blanking support device, a laser pipe cutting machine, and a pipe fitting processing method. The support point position can be dynamically adjusted according to the length and extension length of the finished pipe fitting, ensuring stable support during processing and guaranteeing processing quality.

[0006] In a first aspect, the present invention provides a composite material feeding support device to solve the above-mentioned technical problems, including a base frame and further including: a receiving plate, the receiving plate being disposed on the base frame and movable along the Y and Z directions; at least two receiving rollers, the receiving rollers being disposed on the base frame, the axial direction of the receiving rollers being parallel to the Y direction, and each receiving roller being movable independently along the X and Z directions; the receiving plate being movable to the Y-direction side of the receiving rollers, and the receiving rollers being movable to the X-direction side of the receiving plate.

[0007] This invention, by setting up receiving plates that can move along the Y and Z directions and receiving rollers that can move along the X and Z directions, enables the selection of appropriate support methods and dynamic adjustment of support positions based on the length of the finished pipe fitting and the length of the front chuck assembly. This ensures stable support for longer finished pipe fittings throughout the entire process of extending the front chuck assembly, guaranteeing processing quality.

[0008] Furthermore, the receiving plate is mounted on the Y-axis slide, the Y-axis slide is movable in the Y-axis and mounted on the Z-axis slide, the Z-axis slide is vertically mounted on the X-axis slide plate, and the X-axis slide plate is movable in the X-axis and mounted on the base frame.

[0009] This invention enables the receiving plate to move along the X-direction by setting an X-direction sliding plate, which can avoid the laser during bevel cutting and prevent the receiving plate from being burned.

[0010] Furthermore, the Z-axis slide is provided with a fixed rack and a push cylinder, the piston rod of the push cylinder is connected to a gear, the Y-axis slide is provided with a movable rack, the gear meshes with the fixed rack and the movable rack respectively, and the Y-axis slide and the Z-axis slide are connected by a slider guide mechanism.

[0011] This invention uses a fixed rack and a movable rack to drive the Y-axis slide, which can double the stroke, effectively shorten the stroke range of the push cylinder, and thus shorten the length of the push cylinder, making it easier to arrange in space.

[0012] Furthermore, the receiving plate is hinged to the piston rod of the tilting cylinder, and the cylinder body of the tilting cylinder is hinged to the Y-axis slide block.

[0013] This invention uses a tilting cylinder to tilt the receiving plate to a set position, facilitating automatic material dropping.

[0014] Furthermore, the receiving roller is disposed on the Z-axis slide plate, the Z-axis slide plate is movably disposed on the X-axis slide block along the Z-axis, the X-axis slide block is movably disposed on the base frame along the X-axis, and the X-axis slide block and the X-axis slide plate are respectively disposed on different sides of the base frame.

[0015] Furthermore, the receiving roller has a waist-drum shaped structure, and the middle of the outer circumference of the receiving roller is concave inward.

[0016] This invention, by setting the receiving roller to a concave, waist-drum-shaped structure, can constrain the left-right swinging of the pipe fitting, further ensuring the processing accuracy of longer pipe fittings.

[0017] Furthermore, a support frame is provided on the X-direction slide block, and a sliding plate is inclinedly provided on the support frame. The sliding plate is located on one side of the receiving roller in the X direction, and the inclination angle of the sliding plate can be adjusted.

[0018] This invention enables automatic material dropping after pipe cutting by setting up a support frame and a sliding plate. At the same time, the tilt angle of the sliding plate can be adjusted according to the friction performance of the pipe to ensure that pipes of various materials can slide smoothly.

[0019] Secondly, the present invention also provides a laser tube cutting machine tool, including a bed, on which a rear chuck assembly and a front chuck assembly are disposed, and multiple feeding follow-up support assemblies are distributed on the bed between the rear chuck assembly and the front chuck assembly along the X direction; further comprising: a gantry frame straddling the bed; a laser cutting assembly disposed on the gantry frame and movable along the Y and Z directions; a thermoplastic drilling and tapping head assembly disposed on the gantry frame and movable along the Y and Z directions, and capable of detaching and installing different tools; a tool magazine assembly disposed on the gantry frame and containing multiple tools; and the aforementioned composite unloading support device, with the base frame disposed on one side of the bed along the X direction and close to the gantry frame.

[0020] This invention, through a composite hot melt drilling head assembly and a tool magazine assembly, enables composite hot melt drilling, solving the problem of tapping thin pipe walls and improving the quality of threaded hole processing.

[0021] Thirdly, the present invention also provides a pipe fitting processing method using the aforementioned laser pipe cutting machine tool, comprising the following steps: when it is determined that the length of the finished pipe fitting does not exceed the set length L1, the receiving plate moves to the receiving position along the Y and Z directions, and the receiving roller moves to a position away from the gantry along the X direction. During cutting, the receiving plate rises and falls with the rotation of the pipe to achieve follow-up support; when it is determined that the length of the finished pipe fitting is greater than the set length L1 and less than the set length L2, the receiving plate moves in the opposite direction along the Y direction to one side and descends, and the receiving roller moves towards the gantry along the X direction. The receiving roller closest to the gantry moves to a distance L4 from the gantry and then stops moving. The remaining receiving rollers move along the X direction away from the gantry as the length of the chuck assembly before the pipe fitting extends increases. The receiving roller farthest from the gantry always supports the end position of the pipe fitting, and the receiving rollers in the middle are evenly distributed at both ends. Between the receiving rollers, during cutting, the receiving rollers rise and fall with the rotation of the pipe to achieve follow-up support; when processing the wire hole, if it is determined that the wall thickness of the pipe is greater than the set thickness D and does not exceed n times the diameter of the wire hole, the laser cutting component first performs basic hole processing, then the hot melt drilling and tapping head component performs hot melt drilling, and the hot melt drilling and tapping head component changes tools before tapping; if it is determined that the wall thickness of the pipe does not exceed the set thickness D1, the hot melt drilling and tapping head component first performs hot melt drilling, and the hot melt drilling and tapping head component changes tools before tapping; if it is determined that the wall thickness of the pipe is greater than n times the diameter of the wire hole, the laser cutting component first performs basic hole processing, and the hot melt drilling and tapping head component then performs tapping, where 0.8 < n < 0.9; when the finished pipe falls onto the receiving plate after cutting, the receiving plate tilts and the finished pipe slides down along the receiving plate; when the finished pipe falls onto the receiving roller after cutting, the receiving roller descends and the finished pipe slides down along multiple sliding plates.

[0022] This invention selects an appropriate support method and dynamically adjusts the support position by considering the length of the finished pipe fitting and the length of the pipe fitting in the extended chuck assembly. This achieves compatible support for both short and long finished pipe fittings, as well as stable support throughout the processing, ensuring support stability and providing consistent processing quality. Furthermore, it allows for the selection of a suitable threading method based on the pipe fitting thickness, reducing the Z-axis pressure of the hot melt drilling and preventing localized pipe deformation and reduced hot melt drill life due to excessive Z-axis pressure.

[0023] Furthermore, when it is determined that the length of the finished pipe fitting is greater than the set length L1 and less than the set length L2 and hot melt drilling is required, during hot melt drilling, the receiving roller moves along the X direction to a position away from the gantry, and the receiving plate moves along the Y and Z directions to the receiving position to replace the receiving roller for support. After the wire hole is processed, the receiving plate moves in the opposite direction along the Y direction to one side and descends, and the receiving roller continues to provide support.

[0024] In the hot melt drilling process, the present invention uses a receiving plate and a receiving roller to provide composite support for the protruding part of the pipe, which can greatly reduce the situation where the pipe bends due to insufficient support force of the receiving roller during hot melt drilling.

[0025] As can be seen from the above technical solutions, the present invention has the following advantages: This invention provides a composite unloading support device, a laser tube cutting machine tool, and a tube processing method. By setting up a receiving plate that can move along the Y and Z directions and a receiving roller that can move along the X and Z directions, the device allows for selection of a suitable support method and dynamic adjustment of the support position based on the length of the finished tube and the length of the extended front chuck assembly. This ensures stable support for longer finished tubes throughout the entire extension process of the front chuck assembly, guaranteeing processing quality. The X-direction sliding plate enables the receiving plate to move along the X direction, avoiding laser burns during beveling. The fixed and movable racks driving the Y-direction slide double the stroke, effectively shortening the stroke range of the push cylinder and thus its length, facilitating spatial layout. A tilting cylinder allows the receiving plate to tilt to a set position for automatic unloading. The concave, drum-shaped receiving roller constrains the left-right swing of the tube, further ensuring the processing accuracy of longer tubes. The device also incorporates a support frame and a sliding... The material plate can automatically drop the pipe after cutting by the sliding plate. The tilt angle of the sliding plate can be adjusted according to the friction properties of the pipe to ensure smooth sliding of pipes of various materials. The composite hot melt drilling head assembly and tool magazine assembly enable composite hot melt drilling, solving the problem of tapping thin pipes and improving the quality of the threaded holes. By selecting the appropriate support method and dynamically adjusting the support position based on the length of the finished pipe and the length of the pipe in the chuck assembly before extension, compatible support for both short and long finished pipes is achieved, ensuring stable support throughout the processing. This guarantees support stability and provides consistent processing quality. Furthermore, the appropriate threading method can be selected based on the pipe thickness, reducing the Z-axis pressure during hot melt drilling and preventing localized pipe deformation and reduced hot melt drill life due to excessive Z-axis pressure. During hot melt drilling, the use of a receiving plate and receiving roller for composite support of the extended portion of the pipe greatly reduces the risk of pipe bending due to insufficient support from the receiving roller during hot melt drilling. Attached Figure Description

[0026] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some specific embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the assembly structure of the receiving plate in a specific embodiment of the present invention. Figure 1 .

[0029] Figure 3 This is a schematic diagram of the assembly structure of the receiving plate in a specific embodiment of the present invention. Figure 2 .

[0030] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0031] Figure 5 This is a schematic diagram of the assembly structure of the receiving roller in a specific embodiment of the present invention. Figure 1 .

[0032] Figure 6 This is a schematic diagram of the assembly structure of the receiving roller in a specific embodiment of the present invention. Figure 2 .

[0033] Figure 7 This is a structural schematic diagram of a second specific embodiment of the present invention.

[0034] Figure 8 This is a schematic diagram of the feeding follow-up support component in the second specific embodiment of the present invention.

[0035] Figure 9 This is a schematic diagram of the gantry structure in the second specific embodiment of the present invention.

[0036] Figure 10 This is a schematic diagram of the assembly structure of the laser cutting component in a second specific embodiment of the present invention.

[0037] Figure 11 This is a schematic diagram of the assembly structure of the hot melt drill head assembly in the second specific embodiment of the present invention.

[0038] Figure 12 This is a schematic diagram of the tool magazine assembly in a second specific embodiment of the present invention.

[0039] Figure 13 This is a schematic diagram of the receiving plate receiving materials separately in the third specific embodiment of the present invention.

[0040] Figure 14 This is a schematic diagram of two receiving rollers receiving materials separately in a specific embodiment three of the present invention.

[0041] Figure 15 This is a schematic diagram of three receiving rollers receiving materials individually in a specific embodiment three of the present invention.

[0042] In the diagram: 1. Bed; 2. Rear chuck assembly; 3. Front chuck assembly; 4. Feeding follow-up support assembly; 4.1. Fixed seat; 4.2. Z-axis motor five; 4.3. Z-axis sliding seat three; 4.6. Flat idler roller; 4.8. Centering cylinder; 4.9. Centering support; 4.10. Centering motor; 4.13. Sliding plate; 4.14. Centering roller; 5. Gantry frame; 5.1. Column; 5.2. Crossbeam; 6. Laser cutting assembly. Components: 6.1 Y-axis sliding seat one; 6.2 Y-axis motor three; 6.3 Z-axis sliding seat one; 6.4 Z-axis motor three; 7. Hot melt drill tapping head assembly; 7.1 Y-axis sliding seat two; 7.2 Y-axis motor four; 7.3 Z-axis sliding seat two; 7.4 Z-axis motor four; 7.6 Spindle box; 7.8 Machining motor; 7.9 Coupling; 7.10 Tool-changing booster cylinder; 7.11 Tool; 8. Tool magazine Components; 8.1 Rotary motor; 8.2 Cutter head; 8.3 Cutter clamp; 8.4 Mounting base; 9. Composite blanking support device; 9.1 Base frame; 9.2 Receiving plate; 9.2.1 X-axis slide plate; 9.2.2 X-axis motor one; 9.2.5 Z-axis motor one; 9.2.6 Z-axis slide block; 9.2.8 Y-axis slide block; 9.2.10 Fixed rack; 9.2.11 Movable rack; 9.2. 12. Push cylinder; 9.2.13. Range extender gear; 9.2.16. Tilting cylinder; 9.3.1. X-axis motor II; 9.3.2. X-axis slide block; 9.3.4. Z-axis motor II; 9.3.3. Z-axis slide plate; 9.3.5. Sliding plate; 9.3.6. Connecting rod; 9.3.9. Receiving roller; 9.3.10. Support frame; 10. Transition sliding inclined plate; 12. Drop conveyor belt; 13. Pipe. Detailed Implementation

[0043] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the specific embodiments described below are only a part of the specific embodiments of this invention, and not all of them. Based on the specific embodiments in this patent, all other specific embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this patent. Specific Implementation Method 1 like Figures 1 to 6As shown, this specific embodiment provides a composite material feeding support device, including a base frame 9.1, a receiving plate 9.2, and at least two receiving rollers 9.3.9. The receiving plate 9.2 is disposed on the base frame 9.1 and is movable along the Y and Z directions. The receiving rollers 9.3.9 are disposed on the base frame 9.1, and their axial direction is parallel to the Y direction. Each receiving roller 9.3.9 is movable independently along the X and Z directions. The receiving plate 9.2 and the receiving rollers 9.3.9 are capable of... The receiving roller 9.3.9 receives material independently. When receiving material, the receiving plate 9.2 can move to the Y-direction side of the receiving roller 9.3.9 to avoid it. When receiving material, the receiving roller 9.3.9 can move to the X-direction side of the receiving plate 9.2 to avoid it. In this specific embodiment, three receiving rollers 9.3.9 are provided. In this specific embodiment, the X-direction refers to the direction parallel to the material feeding direction, the Z-direction refers to the vertical direction, and the Y-direction is the width direction of the base frame 9.1.

[0045] This specific embodiment, by setting up a receiving plate 9.2 that can move along the Y and Z directions and a receiving roller 9.3.9 that can move along the X and Z directions, achieves the selection of an appropriate support method and dynamic adjustment of the support position based on the length of the finished pipe fitting and the length of the extension chuck assembly 3. This ensures stable support for longer finished pipe fittings throughout the entire extension process of the extension chuck assembly 3, guaranteeing processing quality. Compared to the fixed support position method in the prior art, multiple sets of independently moving receiving rollers 9.3.9 can move synchronously and asynchronously, keeping the support points in the optimal position at all times. This achieves seamless support throughout the entire cutting stroke of long pipes, optimizes the distribution of support points, and effectively... To prevent pipe sagging and deformation, the multi-point collaborative mobile support system can adapt to the processing needs of pipes of different lengths and weights, significantly improving the stability and processing accuracy of the cutting process and solving the problem of insufficient support in some sections caused by the inability of fixed supports to adjust accordingly. At the same time, by intelligently recognizing the workpiece length and automatically selecting the optimal support method, the precise allocation of support resources is achieved. This division of labor and cooperation mode avoids the problem of concentrated wear caused by long-term operation of a single support mechanism. Meanwhile, the receiving plate 9.2 is specifically designed to provide targeted support for short pipe blanking and hot melt drilling, while the receiving roller 9.3.9 focuses on long pipe support, so that both support forms can achieve the best performance.

[0046] like Figures 2 to 4As shown, in this specific embodiment, the receiving plate 9.2 can be installed in the following manner: the receiving plate 9.2 is mounted on the Y-axis slide 9.2.8, the Y-axis slide 9.2.8 is movably mounted on the Z-axis slide 9.2.6 in the Y-axis direction, the Z-axis slide 9.2.6 is vertically mounted on the X-axis slide plate 9.2.1, and the X-axis slide plate 9.2.1 is movably mounted on the base frame 9.1 in the X-axis direction; specifically, the X-axis slide plate 9.2.1 is equipped with an X-axis motor 9.2.2, which is connected to a gear. The gear meshes with a rack on the left or right side of the base frame 9.1, and the X-axis slide plate 9.2.1 is connected to the corresponding side of the base frame 9.1 via a guide rail. The X-axis slide plate 9.2.1 is connected to a Z-axis slide block 9.2.6 via another guide rail slider mechanism. The Z-axis slide block 9.2.6 has an L-shaped structure. A Z-axis motor 9.2.5 is installed on the vertical part of the Z-axis slide block 9.2.6. The Z-axis motor 9.2.5 is connected to a corresponding range extender gear 9.2.13. The gear meshes with a rack arranged vertically on the X-axis slide plate 9.2.1. A Y-axis slide block 9.2.8 capable of Y-axis movement is installed on the horizontal part of the Z-axis slide block 9.2.6. To reduce the length of the Y-axis push cylinder 9.2.12, this specific embodiment uses a range extender gear rack mechanism for driving. Specifically, the upper surface of the horizontal part of the Z-axis slide block 9.2.6 A fixed rack 9.2.10 and a push cylinder 9.2.12 are arranged along the Y-axis. The piston rod of the push cylinder 9.2.12 is rotatably connected to a stroke-extending gear 9.2.13. A movable rack 9.2.11 is arranged on the lower surface of the Y-axis slide 9.2.8. The stroke-extending gear 9.2.13 meshes with both the fixed rack 9.2.10 and the movable rack 9.2.11. The horizontal portions of the Y-axis slide 9.2.8 and the Z-axis slide 9.2.6 are also connected by corresponding slider guide rail mechanisms. With this arrangement, the receiving plate 9.2 not only has the ability to move in the Y and Z directions, but also has the ability to move in the X direction, allowing it to avoid obstacles during beveling and preventing cutting. The discrete beam damages the flip plate; the X-axis motor 9.2.2, Y-axis motor 9.2.5, and Z-axis motor 9.2.5 are all servo motors, which can accurately control the position of the receiving plate 9.2. When the pipe 13 is cut and rotated, the receiving plate 9.2 will follow the pipe 13 as it passes the edge and provide precise follow-up support, preventing the pipe 13 from sagging due to its own weight and deflection, which would affect the cutting accuracy. Furthermore, in order to achieve automatic unloading, the receiving plate 9.2 is hinged to the piston rod of the flipping cylinder 9.2.16, and the cylinder body of the flipping cylinder 9.2.16 is hinged to the Y-axis slide block 9.2.8. When the flipping cylinder 9.2.16 extends, the receiving plate 9.2 can tilt to a set angle and slide the pipe down.

[0047] like Figure 5 and Figure 6As shown, in this specific embodiment, the receiving roller 9.3.9 can be installed in the following manner: the receiving roller 9.3.9 is mounted on the Z-axis slide plate 9.3.3, the Z-axis slide plate 9.3.3 is movably mounted on the X-axis slide block 9.3.2 along the Z-axis, the X-axis slide block 9.3.2 is movably mounted on the base frame 9.1 along the X-axis, and the X-axis slide block 9.3.2 and the X-axis slide plate 9.2.1 are respectively mounted on different sides of the base frame 9.1; specifically, the X-axis slide block 9.3.2 includes a horizontal part and a vertical part, a reinforcing plate is provided between the horizontal part and the vertical part, an X-axis motor 9.3.1 is provided on the horizontal part of the X-axis slide block 9.3.2, the X-axis motor 9.3.1 is connected to a gear, and the gear is connected to the base frame 9.3.2. The upper rack meshes with the X-axis slide 9.3.2. The horizontal part of the X-axis slide 9.3.2 is connected to the corresponding side of the base frame 9.1 via a guide rail slider mechanism. The vertical part of the X-axis slide 9.3.2 is also connected to the Z-axis slide 9.3.3 via another guide rail slider mechanism. The Z-axis slide 9.3.3 is connected to the lead screw via a nut. The lead screw is vertically set on the vertical part of the X-axis slide 9.3.2 via a bearing seat and connected to the Z-axis motor 9.3.4. In this specific embodiment, the vertical center plane of the receiving roller 9.3.9 is coplanar with the vertical center plane of the front chuck assembly 3. The receiving roller 9.3.9 does not need to move in the Y direction. It only needs to move to the X-axis side of the receiving plate 9.2 away from the front chuck assembly 3 when the receiving plate 9.2 is receiving material. Both 3.1 and Z-axis motors 9.3.4 are servo motors, capable of accurately positioning the receiving rollers 9.3.9. The three receiving rollers 9.3.9 can move synchronously and asynchronously, working independently. Simultaneously, when the pipe 13 rotates during cutting, the receiving plate 9.2 provides precise follow-up support as the pipe 13 passes over edges, preventing the pipe 13 from sagging due to its own weight and deflection, thus affecting cutting accuracy. The receiving roller 9.3.9 closest to the front chuck assembly 3 maintains a set distance from the front chuck assembly 3 during support; this set distance is greater than the set distance between the receiving plate 9.2 and the front chuck assembly 3 when providing receiving support. To effectively prevent long pipes 13 from being thrown out, the receiving rollers 9.3.9 have a drum-shaped structure. 9.9 The outer circumferential surface is concave in the middle. Specifically, the receiving roller 9.3.9 includes limiting circular plates at both ends. The two limiting circular plates are connected by a support part. The diameter of the support part decreases from both ends to the middle. The support part is a rotating body, and its generatrix of rotation is a curve. The support part is thinner in the middle and thicker at both ends, which can effectively constrain the left and right directions of the pipe 13 and further ensure the processing accuracy of the longer pipe 13. In order to enable automatic unloading, a support frame 9.3.10 is provided on the vertical part of the X-direction slide 9.3.2. A sliding plate 9.3.5 is inclinedly provided on the support frame 9.3.10. The sliding plate 9.3.5 is located on one side of the receiving roller 9.3.9 in the X direction. When unloading, the receiving roller 9.3.9 descends, and the pipe 13 is supported by the sliding plate 9.3.10.5. Support for sliding: Due to the different friction forces of pipe fittings 13 made of different materials and with different structures, in order to ensure that all pipe fittings 13 can slide smoothly and reduce the impact during material drop, the tilt angle of the sliding plate 9.3.5 can be adjusted. When the sliding resistance of the pipe fitting 13 is large, the tilt angle of the sliding plate 9.3.5 is adjusted to be larger; when the sliding resistance is small, the tilt angle is smaller. The lower end of the sliding plate 9.3.5 is hinged to the support frame 9.3.10 by a pin, and the upper end can be connected to the other end of the support frame 9.3.10 by a hinged adjusting screw. An angle adjustment can be achieved through a single connection point, or by using an electric telescopic rod. In this specific embodiment, the upper section of the slide plate 9.3.5 is hinged to the support frame 9.3.10 via a hinged connecting rod 9.3.6. The connecting rod 9.3.6 is also hinged to the support frame 9.3.10. Multiple adjustment holes are provided along the length of the slide plate 9.3.5. By using different adjustment holes to hinge to the lower end of the support frame 9.3.10, the angle of the slide plate 9.3.5 can be adjusted. The structure is simple and the operation is reliable. Specific Implementation Method Two like Figure 7 As shown in the figure, this specific embodiment provides a laser tube cutting machine tool, including a bed 1, a gantry 5, a laser cutting assembly 6, a hot melt drilling and tapping head assembly 7, and a tool magazine assembly 8. A rear chuck assembly 2 and a front chuck assembly 3 are provided on the bed 1. Multiple feeding follow-up support assemblies 4 are distributed on the bed 1 between the rear chuck assembly 2 and the front chuck assembly 3 along the X-axis. The gantry 5 straddles the bed 1 and is supported on the ground. The laser cutting assembly 6 is mounted on the gantry 5 and is movable along the Y and Z axes. The hot melt... The drilling and tapping head assembly 7 is mounted on the gantry frame 5. The hot-melt drilling and tapping head assembly 7 is movable along the Y and Z directions. The hot-melt drilling and tapping head assembly 7 is detachable and can be used to install different cutting tools 7.11. The cutting tools 7.11 include tool holders. The tool magazine assembly 8 is mounted on the gantry frame 5. The tool magazine assembly 8 contains multiple cutting tools 7.11, including taps and hot-melt drill bits of various specifications. It also includes a composite blanking support device 9 according to the first embodiment. The base frame 9.1 is mounted on one side of the bed 1 in the X direction and close to the gantry frame 5.

[0049] This specific embodiment utilizes a composite hot melt drill tapping head assembly 7 and a tool magazine assembly 8. When tapping the surface of a pipe, the high-speed rotation of the hot melt drill contacts the pipe and generates heat through friction, causing the pipe 13 to soften locally due to heat. The downward movement of the hot melt drill stretches the softened portion downwards, thereby increasing the local wall thickness. This ensures that the thickness of the threaded hole is greater than the pipe wall thickness, guaranteeing that the threaded hole has a sufficient number of turns. This prevents thread slippage and unraveling after use, solving the problem of tapping thin pipes.

[0050] like Figure 9 and Figure 10 As shown, in this specific embodiment, the gantry frame 5 includes a crossbeam 5.2. A Y-axis sliding seat 6.1 is movably mounted on the crossbeam 5.2 along the Y direction. A Y-axis motor 6.2 is mounted on the Y-axis sliding seat 6.1. The Y-axis motor 6.2 is connected to a gear, which meshes with a rack on the crossbeam 5.2. The Y-axis sliding seat 6.1 is connected to the crossbeam 5.2 through a corresponding guide rail slider mechanism. A Z-axis motor 6.4 is mounted on the Y-axis sliding seat 6.1. The Z-axis motor 6.4 is connected to a corresponding lead screw. The lead screw is rotatably mounted on the Y-axis sliding seat 6.1 through a bearing seat. The lead screw is connected to a Z-axis sliding seat 6.3 through a nut. The Z-axis sliding seat 6.3 is connected to the laser cutting assembly 6.

[0051] like Figure 11 As shown, in this specific embodiment, a Y-axis sliding seat 7.1 is also movably mounted on the crossbeam 5.2 along the Y direction. A Y-axis motor 7.2 is mounted on the Y-axis sliding seat 7.1, and the Y-axis motor 7.2 is connected to a corresponding gear. The gear meshes with a rack on the crossbeam 5.2. The Y-axis sliding seat 7.1 and the Y-axis sliding seat 6.1 share a rack. The Y-axis sliding seat 7.1 is connected to the crossbeam 5.2 via a corresponding guide rail slider mechanism. A Z-axis motor 7.4 is mounted on the Y-axis sliding seat 7.1, and the Z-axis motor 7.4 is connected to a corresponding lead screw. The lead screw is connected to a shaft. The bearing is rotatably mounted on the Y-axis sliding seat 7.1. The lead screw is connected to the Z-axis sliding seat 7.3 via a lead screw nut. The Z-axis sliding seat 7.2 is connected to the hot melt drilling and tapping head assembly 7. The hot melt drilling and tapping head assembly 7 includes a spindle box 7.6, which is connected to the lead screw nut. A machining motor 7.8 is mounted on the spindle box 7.6. The machining motor 7.8 is connected to the spindle via a coupling 7.9. The spindle is connected to the tool holder, which holds the required hot melt drill and tap. A tool-setting booster cylinder 7.10 is mounted on one side of the spindle box 7.6. The tool-setting booster cylinder 7.10 is used to release and clamp the tool holder.

[0052] like Figure 12 As shown, in this specific embodiment, the tool magazine assembly 8 includes a mounting base 8.4, which is mounted on the column 5.1 of the gantry 5. A rotary motor 8.1 is mounted on the mounting base 8.4, and the rotary motor 8.1 is connected to a tool disc 8.2. Multiple tool holders 8.3 are mounted on the tool disc 8.2, and corresponding tools 7.11 are placed on the tool holders 8.3. The multiple tools 7.11 are respectively hot melt taps and taps of corresponding models.

[0053] like Figure 8As shown, in this specific embodiment, the feeding follow-up support assembly 4 includes a fixed base 4.1, which is connected to the bed 1. A Z-axis motor 4.2 is mounted on the fixed base 4.1. The Z-axis motor 4.2 drives a Z-axis sliding seat 4.3 via a gear and rack mechanism. A flat roller 4.6 is mounted on the Z-axis sliding seat 4.3. A centering support 4.9 is vertically mounted on the Z-axis sliding seat 4.9 and driven by a centering cylinder 4.8, which is mounted on the Z-axis sliding seat 4.3. Two centering rollers 4.14 are arranged opposite each other on the centering support 4.9. The centering rollers 4.14 are respectively mounted on sliding plates 4.13, which are movably mounted on the centering support 4.9 along the Y direction to realize the opening and closing movement of the two centering rollers 4.14. Each of the two sliding plates 4.13 is connected to a rack, which is movably mounted on the centering support 4.9 and located at the same position. On both sides of the gear, the gear rotates under the drive of the centering motor 4.10, realizing the reverse movement of the sliding plates 4.13 on both sides to achieve the opening and closing motion; through the above structural arrangement, the flat idler roller 4.6 moves up and down and the moving centering roller 4.14 moves left and right. When the tube is placed on the surface of the flat idler roller 4.6, the moving centering roller 4.14 moves to center and clamp the tube at the center line position of the bed 1. The stopping position of the centering roller 4.14 is identified in advance by the system according to the tube specifications. The flat idler roller 4.6 moves the tube upward to the center of the chuck and stops. This stopping position is different depending on the tube. Relying on the system to identify the tube specifications in advance, when the tube reaches the center position of the chuck, the rear chuck assembly 2 advances to the end face of the tube and stops. The jaws clamp the tube, and the rear chuck assembly 2 pushes the tube to move towards the front chuck assembly 3 until the tube is pushed out of the front chuck assembly 3 a certain distance and stops. The laser cutting assembly 6 begins to process the tube.

[0054] In this specific embodiment, both the rear chuck assembly 2 and the front chuck assembly 3 are existing technologies, and their structures will not be described in detail here.

[0055] like Figure 7 As shown, this specific embodiment also includes a transition sliding inclined plate 10 and a dropping conveyor belt 12. The transition sliding inclined plate 10 is installed between the composite dropping support device 9 and the dropping conveyor belt 12. The dropping conveyor belt 12 is used to receive finished workpieces and buffer them. Specific Implementation Method 3 like Figures 13 to 15 As shown, this specific embodiment provides a pipe fitting processing method, which uses the laser pipe cutting machine tool of Specific Embodiment Two, and includes the following steps: When it is determined that the length of the finished pipe fitting does not exceed the set length L1, the receiving plate 9.23 is used to receive the material separately. The receiving plate 9.2 moves to the receiving position along the Y and Z directions in turn. At the same time, the receiving roller 9.3.9 moves along the X direction to a position away from the gantry 5 to avoid the receiving plate 9.2. During cutting, the receiving plate 9.2 rises and falls with the rotation of the pipe fitting 13 to achieve follow-up support. When the length of the finished pipe fitting is determined to be greater than the set length L1 and less than the set length L2, the receiving roller 9.3.9 is used to receive the material alone. The receiving plate 9.2 moves in the opposite direction along the Y direction to one side and descends. The receiving roller 9.3.9 moves along the X direction towards the gantry 5. The receiving roller 9.3.9 closest to the gantry 5 moves to a distance L4 from the gantry 5 and then stops moving. The remaining receiving rollers 9.3.9 move along the X direction away from the gantry 5 as the length of the pipe fitting extends beyond the front chuck assembly 3. The receiving roller 9.3.9 furthest from the gantry 5 always supports the end position of the pipe fitting (keeping the support point at a set distance L5 from the end of the pipe fitting). The receiving rollers 9.3.9 in the middle are evenly distributed between the receiving rollers 9.3.9 at both ends. During cutting, the receiving rollers 9.3.9 rise and fall with the rotation of the pipe fitting 13 to achieve follow-up support. When machining the wire hole, if it is determined that the wall thickness of the pipe 13 is greater than the set thickness D but does not exceed n times the wire hole diameter, the laser cutting assembly 6 first performs basic hole machining, then the thermo-melt drilling and tapping head assembly 7 performs thermo-melt drilling, and the thermo-melt drilling and tapping head assembly 7 changes tools before tapping; if it is determined that the wall thickness of the pipe 13 does not exceed the set thickness D1, the thermo-melt drilling and tapping head assembly 7 first performs thermo-melt drilling, and the thermo-melt drilling and tapping head assembly 7 changes tools before tapping; if it is determined that the wall thickness of the pipe 13 is greater than n times the wire hole diameter, the laser cutting assembly 6 first performs basic hole machining, and the thermo-melt drilling and tapping head assembly 7 then taps, where 0.8 < n < 0.9; When the cut finished pipe falls onto the receiving plate 9.2, the receiving plate 9.2 tilts under the action of the early tilting cylinder 9.2.16, and the finished pipe slides down along the receiving plate 9.2. When the cut finished pipe falls onto multiple receiving rollers 9.3.9, the receiving rollers 9.3.9 descend, and the finished pipe slides down along multiple sliding plates 9.3.5.

[0057] When using receiving rollers 9.3.9 for support, if the distance of the receiving roller 9.3.9 closest to the gantry 5 extending from the end of pipe 13 is less than the minimum distance between two adjacent receiving rollers 9.3.9, only the receiving roller 9.3.9 closest to the gantry 5 is supported, and the other two do not need to be raised. If the distance of the receiving roller 9.3.9 extending from the middle position of pipe 13 is less than the set distance between the farthest receiving roller 9.3.9 and the end of pipe 13, only the receiving roller 9.3.9 closest to the gantry 5 and the middle receiving roller 9.3.9 are supported, and the farthest receiving roller 9.3.9 does not need to be raised. If the distance of the receiving roller 9.3.9 extending from the middle position of pipe 13 is not less than the set distance between the farthest receiving roller 9.3.9 and the end of pipe, all three receiving rollers 9.3.9 participate in the support, and all three receiving rollers 9.3.9 are raised.

[0058] Because the Z-axis pressure of hot melt drilling on the pipe fitting is relatively large, it is easy to cause the pipe fitting 13 to bend and deform. At the same time, the receiving roller 9.3.9 is at a set distance from the front chuck assembly 3, causing the pipe fitting 13 to be suspended below during hot melt drilling. In order to enhance support and prevent deformation, in this specific embodiment, when it is determined that the length of the finished pipe fitting 13 is greater than the set length L1 and less than the set length L2 and hot melt drilling is required, the receiving roller 9.3.9 moves along the X-axis to a position away from the gantry 5 during hot melt drilling. The receiving plate 9.2 moves along the Y-axis and Z-axis to the receiving position to replace the receiving roller 9.3.9 for support, so as to avoid the pipe fitting being suspended below during hot melt drilling. After the thread hole is processed, the receiving plate 9.2 moves in the opposite direction along the Y-axis to one side and descends. The receiving roller 9.3.9 resets and continues to provide support.

[0059] In this specific embodiment, L1 is 1500mm, L2 is 4500mm, D1 is 2.5mm, and n is 0.85.

[0060] As can be seen from the above specific embodiments, the present invention has the following beneficial effects: 1. By setting a receiving plate 9.2 that can move along the Y and Z directions and a receiving roller 9.3.9 that can move along the X and Z directions, the appropriate support method and the dynamic adjustment of the support position can be achieved according to the length of the finished pipe fitting and the length of the front chuck assembly 3. This ensures that the longer finished pipe fitting is stably supported throughout the entire process of extending the front chuck assembly 3, thus guaranteeing the processing quality. 2. By setting the X-axis sliding plate 9.2.1, the receiving plate 9.2 can move along the X-axis, which can avoid the laser during bevel cutting and prevent the receiving plate 9.2 from being burned by the laser. 3. By setting a fixed rack 9.2.10 and a movable rack 9.2.11 to drive the Y-axis slide 9.2.8 to move, the stroke can be doubled, effectively shortening the stroke range of the push cylinder 9.2.12, thereby shortening the length of the push cylinder 9.2.12 and facilitating spatial layout; 3. By setting the tilting cylinder 9.2.16, the receiving plate 9.2 can be tilted to a set position for automatic dropping; 4. By setting the receiving roller 9.3.9 to a concave waist-drum-shaped structure, the left and right swing of the pipe can be constrained, further ensuring the processing accuracy of longer pipes; 5. By setting up the support frame 9.3.10 and the sliding plate 9.3.5, the sliding plate 9.3.5 can automatically drop the pipe after the pipe is cut. At the same time, the tilt angle of the sliding plate 9.3.5 can be adjusted according to the friction performance of the pipe to ensure that pipes of various materials can slide smoothly. 6. By using the composite hot melt drilling head assembly 7 and the tool magazine assembly 8, composite hot melt drilling can be achieved, which solves the problem that tapping is not possible for thin pipe walls and improves the quality of threaded hole processing. 7. By selecting the appropriate support method and dynamically adjusting the support position based on the length of the finished pipe fitting and the length of the pipe fitting in the extended front chuck assembly 3, compatible support for both shorter and longer finished pipe fittings can be achieved, as well as stable support throughout the processing. This ensures support stability and provides stable processing quality. At the same time, it can select the appropriate threading method according to the pipe fitting thickness, reduce the Z-axis pressure of hot melt drilling, and prevent the problem of local deformation of the pipe and reduced life of the hot melt drill due to excessive Z-axis pressure. 8. When hot-melt drilling, using the receiving plate 9.2 and the receiving roller 9.3.9 to provide combined support for the protruding part of the pipe can greatly reduce the situation where the pipe bends due to insufficient support force of the receiving roller 9.3.9 during hot-melt drilling.

[0061] The above description of the specific embodiments disclosed enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the specific embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser tube cutting machine tool, comprising a bed (1), wherein a rear chuck assembly (2) and a front chuck assembly (3) are disposed on the bed (1), characterized in that, Also includes: Gantry frame (5), which straddles the bed (1); Thermo-melting drill head assembly (7) is mounted on the gantry frame (5); A composite blanking support device includes a base frame (9.1) located on one side of the bed (1) in the X direction and close to the gantry frame (5), and a receiving plate (9.2) mounted on the base frame (9.1). The receiving plate (9.2) is movable in the Y and Z directions. At least two receiving rollers (9.3.9) are mounted on the base frame (9.1), with their axial direction parallel to the Y direction. Each receiving roller (9.3.9) is movable independently in the X and Z directions. The receiving plate (9.2) is movable to... The receiving roller (9.3.9) is located on the Y-direction side, and the receiving roller (9.3.9) can move to the X-direction side of the receiving plate (9.2); the receiving roller (9.3.9) is disposed on the Z-direction slide plate (9.3.3), the Z-direction slide plate (9.3.3) is movably disposed on the X-direction slide block (9.3.2) along the Z-direction, the X-direction slide block (9.3.2) is provided with a support frame (9.3.10), the support frame (9.3.10) is inclinedly disposed with a sliding plate (9.3.5), the sliding plate (9.3.5) is located on the X-direction side of the receiving roller (9.3.9), and the tilt angle of the sliding plate (9.3.5) can be adjusted; When it is determined that the length of the finished pipe fitting is greater than the set length L1 and less than the set length L2 and hot melt drilling is required, when hot melt drilling is performed, the receiving roller (9.3.9) moves along the X direction to a position away from the gantry (5), and the receiving plate (9.2) moves along the Y and Z directions to the receiving position to replace the receiving roller (9.3.9) for support. After the wire hole is processed, the receiving plate (9.2) moves in the opposite direction along the Y direction to one side and descends, and the receiving roller (9.3.9) continues to provide support.

2. The laser tube cutting machine tool as described in claim 1, characterized in that, The receiving plate (9.2) is mounted on the Y-axis slide (9.2.8), which is movable in the Y direction on the Z-axis slide (9.2.6). The Z-axis slide (9.2.6) is vertically mounted on the X-axis slide plate (9.2.1), which is movable in the X direction on the base frame (9.1).

3. The laser tube cutting machine tool as described in claim 2, characterized in that, The Z-axis slide (9.2.6) is provided with a fixed rack (9.2.10) and a push cylinder (9.2.12). The piston rod of the push cylinder (9.2.12) is connected to a stroke-extending gear (9.2.13). The Y-axis slide (9.2.8) is provided with a movable rack (9.2.11). The stroke-extending gear (9.2.13) meshes with the fixed rack (9.2.10) and the movable rack (9.2.11) respectively. The Y-axis slide (9.2.8) and the Z-axis slide (9.2.6) are connected by a slider guide mechanism.

4. The laser tube cutting machine tool as described in claim 3, characterized in that, The receiving plate (9.2) is hinged to the piston rod of the turning cylinder (9.2.16), and the cylinder body of the turning cylinder (9.2.16) is hinged to the Y-axis slide (9.2.8).

5. The laser tube cutting machine tool as described in claim 4, characterized in that, The X-direction slide (9.3.2) is movably mounted on the base frame (9.1) along the X direction, and the X-direction slide (9.3.2) and the X-direction slide plate (9.2.1) are respectively mounted on different sides of the base frame (9.1).

6. The laser tube cutting machine tool as described in claim 5, characterized in that, The receiving roller (9.3.9) has a waist-drum shaped structure, and the middle part of the outer circumference of the receiving roller (9.3.9) is concave inward.

7. The laser tube cutting machine tool as described in claim 1, characterized in that, The bed (1) has multiple feeding follow-up support components (4) located between the rear chuck assembly (2) and the front chuck assembly (3) and distributed along the X direction. It also includes a laser cutting assembly (6), which is mounted on the gantry (5) and can move along the Y and Z directions. The hot melt drilling and tapping head assembly (7) can move along the Y and Z directions and can be disassembled and installed with different tools (7.11). The tool magazine assembly (8) is mounted on the gantry (5) and contains multiple tools (7.11).

8. A method for processing pipe fittings, characterized in that, The laser tube cutting machine tool as described in claim 7 includes the following steps: When the length of the finished pipe fitting is determined to be no more than the set length L1, the receiving plate (9.2) moves to the receiving position along the Y and Z directions, and the receiving roller (9.3.9) moves to a position away from the gantry (5) along the X direction. During cutting, the receiving plate (9.2) rises and falls with the rotation of the pipe fitting to achieve follow-up support. When the length of the finished pipe fitting is determined to be greater than the set length L1 and less than the set length L2, the receiving plate (9.2) moves to one side along the Y direction and descends, and the receiving roller (9.3.9) moves towards the gantry (5) along the X direction, at the distance from the gantry (5) to the gantry (5). The nearest receiving roller (9.3.9) moves to a distance L4 from the gantry (5) and then stops moving. The remaining receiving rollers (9.3.9) move away from the gantry (5) along the X direction as the length of the pipe extends out of the front chuck assembly (3). The receiving roller (9.3.9) farthest from the gantry (5) always supports the end position of the pipe. The receiving rollers (9.3.9) in the middle are evenly distributed between the receiving rollers (9.3.9) at both ends. During cutting, the receiving rollers (9.3.9) rise and fall with the rotation of the pipe to achieve follow-up support. When machining the wire hole, if it is determined that the wall thickness of the pipe is greater than the set thickness but does not exceed n times the diameter of the wire hole, the laser cutting assembly (6) first performs the basic hole machining, and then the hot melt drilling and tapping head assembly (7) performs hot melt drilling. After the hot melt drilling and tapping head assembly (7) changes the tool, it performs the wire tapping. If it is determined that the wall thickness of the pipe does not exceed the set thickness, the hot melt drilling and tapping head assembly (7) first performs hot melt drilling, and then the hot melt drilling and tapping head assembly (7) changes the tool, it performs the wire tapping. If it is determined that the wall thickness of the pipe is greater than n times the diameter of the wire hole, the laser cutting assembly (6) first performs the basic hole machining, and then the hot melt drilling and tapping head assembly (7) performs the wire tapping. Wherein, 0.8 < n < 0.

9. When the cut finished pipe falls onto the receiving plate (9.2), the receiving plate (9.2) tilts and the finished pipe slides down along the receiving plate (9.2). When the cut finished pipe falls onto the receiving roller (9.3.9), the receiving roller (9.3.9) descends and the finished pipe slides down along multiple sliding plates (9.3.5).

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