Laser pipe cutting equipment

Abstract

The invention relates to the technical field of laser pipe cutting, and discloses laser pipe cutting equipment which comprises a horizontal pipe cutting machine and a feeding mechanism arranged beside the horizontal pipe cutting machine, a vertical plate is arranged at the end, close to a laser cutting assembly, of the horizontal pipe cutting machine, and an air draft dust removal opening is formed in the vertical plate and connected with a dust collector. A side wall is arranged at the front end of the horizontal type bottom frame, and a short material receiving frame located below the laser cutting assembly is arranged on the side wall. The laser pipe cutting equipment is specially used for cutting a pipe into short pipe sections, and is compact in structure and low in manufacturing cost; in addition, the laser pipe cutting equipment can effectively collect and process metal dust generated in the process of cutting short pipe sections through laser by arranging an air draft dust removal port connected with a dust collector on the horizontal underframe, the dust concentration in a workshop is remarkably reduced, the working environment of workers is improved, and the health risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser tube cutting, and in particular to a laser tube cutting device. Background Art

[0002] Compared with cutting tubes with cutting wheels, laser cutting can not only provide extremely high precision, but also the cutting edge is smooth and burr-free, and no subsequent grinding or finishing work is required, which not only improves production efficiency but also reduces additional processing costs. Although the tube cutting machines on the market can take into account the processing of long and short tube sections, they occupy a large space and have high manufacturing costs. Therefore, it is necessary to develop a laser tube cutting equipment that is specifically used for cutting short tube sections. In addition, during the processing process, frequent laser cutting of short tube sections will generate a large amount of metal dust, which seriously pollutes the workshop environment. Therefore, the laser tube cutting equipment needs to have a ventilation and dust removal function. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a laser tube cutting device specifically for cutting short tube sections and to solve the problem of dust pollution generated by tube cutting.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A laser tube cutting device comprises a horizontal tube cutting machine and a feeding mechanism arranged beside the horizontal tube cutting machine, wherein the horizontal tube cutting machine comprises a horizontal base frame, a fixed chuck assembly and a gantry arranged at the top of the front end of the horizontal base frame, a laser cutting assembly arranged on the gantry and movable along the X-axis and the Z-axis, and a movable chuck assembly slidably arranged on the horizontal base frame forward and backward, the horizontal base frame is provided with a clamping support mechanism and a variable diameter wheel support mechanism, the clamping support mechanism is used to transport the tube on the feeding mechanism, the tube can be clamped by the movable chuck assembly and the fixed chuck assembly after being centered and raised, the variable diameter wheel support mechanism is used to support the tube, the laser cutting assembly is used to laser cut the tube, the front end of the horizontal base frame is provided with a vertical plate located below the fixed chuck assembly, the vertical plate is provided with an exhaust dust removal port, the exhaust dust removal port is connected to a vacuum cleaner, the front end of the horizontal base frame is provided with a side enclosure, and the side enclosure is provided with a short material connection rack located below the laser cutting assembly.

[0006] As a further improvement of the above technical solution, the vacuum cleaner is arranged in a horizontal base frame.

[0007] As a further improvement of the above technical solution, the feeding mechanism includes at least three groups of material rack modules arranged at intervals, and a driving structure that drives all the material rack modules to move synchronously, each material rack module includes a frame, a material guide inclined shaft arranged on the top of the frame and inclined downward, a material dividing structure arranged on one side of the frame, and a material transporting structure arranged on the other side of the frame; a transfer station is provided at the unloading end of the material guide inclined shaft, a transfer inclined shaft that is higher than the material guide inclined shaft and inclined downward is provided downstream of the material guide inclined shaft, and the frame is provided with The stopper is used to prevent the pipes at the transfer station from continuing to slide downward. The material dividing structure includes a material dividing plate and a lifting cylinder for driving the material dividing plate to move up and down. The top of the material dividing plate is provided with a sliding slope, and the back of the material dividing plate is provided with a material blocking slope that is perpendicular to the material guiding inclined axis; the lifting cylinder is used to drive the material dividing plate to move upward, lift the pipes at the transfer station, so that the pipes on the material dividing plate are first transferred to the transfer inclined axis, and then slide to the material transport structure; the material transport structure is used to load the pipes transported along the longitudinal direction.

[0008] As a further improvement of the above technical solution, the dividing plate is in the shape of a "7", including a head and a vertical handle; a first slider is provided on the vertical handle of the dividing plate, the first slider is slidably connected to the first guide rail on the frame, and the piston rod end of the lifting cylinder is drivingly connected to the head of the dividing plate.

[0009] As a further improvement of the above technical solution, the material transport structure includes a material transport longitudinal beam, a second guide rail arranged on the material transport longitudinal beam and extending along the length direction of the material transport longitudinal beam, a supporting and positioning assembly arranged on one end of the material transport longitudinal beam, and a transmission assembly for driving the material transport longitudinal beam to move longitudinally. A second slider is fixed on the frame, and the second guide rail is slidably connected to the second slider; the supporting and positioning assembly includes two symmetrically arranged positioning blocks, and the two positioning blocks together form a V-shaped pipe positioning opening.

[0010] As a further improvement of the above technical solution, the short material receiving rack includes a T-shaped support fixed on the side wall, a first material receiving plate, a second material receiving plate hinged to the first material receiving plate, a lifting vertical plate fixed to the bottom of the first material receiving plate, a lifting rack and a lifting guide rail vertically arranged on the lifting vertical plate, and a material unloading cylinder arranged on the lifting vertical plate, the piston rod end of the material unloading cylinder is hinged to the second material receiving plate through a joint, the T-shaped support is located below the first material receiving plate, the T-shaped support is provided with a fixed slider slidably connected to the lifting guide rail, the T-shaped support is provided with a lifting drive, and the output end of the lifting drive is provided with a transmission gear meshing with the lifting rack.

[0011] As a further improvement of the above technical solution, the variable diameter wheel support mechanism includes a mounting plate fixed on a horizontal base frame, a first lifting cylinder arranged upward on a fixed seat, a receiving frame drivingly connected to the first lifting cylinder, a support shaft fixed on the receiving frame, a variable diameter wheel rotatably arranged on the support shaft, and a locking structure for fixing and locking the variable diameter wheel.

[0012] As a further improvement of the above technical solution, the clamping support mechanism includes a T-shaped plate, two clamping blocks that are symmetrical and slidably arranged on the T-shaped plate, a clamping drive cylinder for driving the two clamping blocks to move closer or away from each other, and a lifting assembly for driving the T-shaped plate to move up and down.

[0013] As a further improvement of the above technical solution, the lifting assembly includes a lifting seat, a second lifting cylinder arranged upward on the lifting seat, the piston rod end of the second lifting cylinder is fixedly connected to the T-shaped plate, a support is provided on the horizontal base frame, the lifting seat can be vertically slidably arranged on the support, and the lifting seat is provided with a height adjustment screw pressed against the support.

[0014] As a further improvement of the above technical solution, the laser cutting assembly includes an X-axis rack and an X-axis guide rail arranged on the top beam of the gantry, an X-axis slide slidably connected to the X-axis guide rail through an X-axis slider, an X-axis drive motor arranged on the X-axis slide, a Z-axis linear module arranged on the X-axis slide, and a laser cutting head arranged on the slide of the Z-axis linear module, and the output end of the X-axis drive motor is provided with an X-axis gear meshing with the X-axis rack for transmission.

[0015] The beneficial effects of the present invention are as follows: compared with the prior art, the laser tube cutting equipment is specially used for cutting tubes into short tube segments, has a compact structure and low manufacturing cost; in addition, the laser tube cutting equipment can effectively collect and process metal dust generated during the laser cutting of short tube segments by arranging an exhaust dust removal port connected to a vacuum cleaner on a horizontal base frame, thereby significantly reducing the dust concentration in the workshop, improving the working environment of workers and reducing health risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The laser tube cutting device provided by the present invention is a three-dimensional Figure 1 .

[0017] Figure 2 The laser tube cutting device provided by the present invention is a three-dimensional Figure 2 .

[0018] Figure 3 This is a three-dimensional view of one of the material rack modules of the loading mechanism.

[0019] Figure 4 It is a three-dimensional diagram of the material distribution structure on the material rack module.

[0020] Figure 5 For the three-dimensional short material rack Figure 1 .

[0021] Figure 6 For the three-dimensional short material rack Figure 2 .

[0022] Figure 7 This is a partial enlarged view of area A.

[0023] Figure 8 This is a partial enlarged view of area B.

[0024] Fig. 9 It is a three-dimensional diagram of the clamping support mechanism.

[0025] Fig.10 It is a three-dimensional diagram of the variable diameter wheel support mechanism.

[0026] Main component symbols: a-horizontal pipe cutting machine, a1-horizontal base, a10-side enclosure, a2-fixed chuck assembly, a3-gantry, a4-mobile chuck assembly, a41-slide plate, a42-mobile chuck body, a43-mobile drive motor, a5-clamping support mechanism, a51-T-shaped plate, a52-clamping block, a53-clamping drive cylinder, a54-lifting seat, a55-second lifting cylinder, a56-support, a57-height adjustment screw, a58-pull rod, a6-variable wheel support mechanism, a61-mounting plate, a62-first - Lifting cylinder, a63-support frame, a64-support shaft, a65-variable wheel, a66-locking structure, a7-vertical plate, a71-exhaust dust removal port, a81-Y-axis rack, a82-Y-axis guide rail, a83-Y-axis slider, a9-laser cutting component, a91-X-axis rack, a92-X-axis guide rail, a93-X-axis slide, a94-X-axis drive motor, a95-Z-axis linear module, a96-laser cutting head, b-feeding mechanism, b1-material rack module, b11-frame, b12-material guide inclined axis, b13-material distribution structure, b 131- material dividing plate, b1311- sliding slope, b1312- material blocking slope, b1313- head, b1314- vertical handle, b132- material lifting cylinder, b133- first slider, b134- first guide rail, b14- material transport structure, b141- material transport longitudinal beam, b142- second guide rail, b143- second slider, b144- positioning block, b145- pipe positioning port, b1401- first transmission shaft, b1402- second transmission shaft, b1403- first sprocket, b1404- second sprocket, b1405- chain bar, b1406-transmission block, b15-transfer station, b16-transfer inclined axis, b171-block, b31-drive motor, b32-synchronous axis, c-short material rack, c11-first material receiving plate, c12-second material receiving plate, c2-lifting vertical plate, c31-lifting guide rail, c32-fixed slide block, c41-unloading cylinder, c5-T-shaped support, c6-lifting drive, c61-reducer, c62-motor, c63-handwheel, c64-C-shaped clamping block, c65-clamping handle, c66-transmission gear, c67-lifting rack. DETAILED DESCRIPTION

[0027] The present invention provides a laser tube cutting device. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0028] See also Figure 1 and Figure 2The present invention provides a laser tube cutting device, comprising a horizontal tube cutting machine a, and a feeding mechanism b arranged beside the horizontal tube cutting machine a, wherein the horizontal tube cutting machine a comprises a horizontal base frame a1, a fixed chuck assembly a2 and a gantry a3 arranged at the top of the front end of the horizontal base frame a1, a laser cutting assembly a9 arranged on the gantry a3 and movable along the X-axis and the Z-axis, and a movable chuck assembly a4 arranged on the horizontal base frame a1 and slidable forward and backward, and a clamping support mechanism a5 and a variable diameter wheel support mechanism a6 are arranged on the horizontal base frame a1, and the clamping support mechanism a5 is used to transfer the feeding mechanism The pipe on b can be clamped by the movable chuck assembly a4 and the fixed chuck assembly a2 after the pipe is centered and raised. The variable diameter wheel support mechanism a6 is used to support the pipe. The laser cutting assembly a9 is used to laser cut the pipe. The front end of the horizontal base frame a1 is provided with a vertical plate a7 located below the fixed chuck assembly a2. The vertical plate a7 is provided with an exhaust dust removal port a71, and the exhaust dust removal port a71 is connected to a vacuum cleaner. The front end of the horizontal base frame a1 is provided with a side enclosure a10, and the side enclosure a10 is provided with a short material rack c located below the laser cutting assembly.

[0029] In actual work, the pipe to be processed is automatically transported to the top of the clamping support mechanism a5 through the feeding mechanism b. The clamping support mechanism a5 rises to clamp the pipe so that the pipe is centered. Then the mobile chuck assembly a4 moves to clamp the tail of the pipe, and under the support of the variable diameter wheel support mechanism a6, the pipe is pushed to move toward the fixed chuck assembly a2, so that the mobile chuck assembly a4 can clamp the head of the pipe. The mobile chuck assembly a4 and the mobile chuck assembly a4 jointly drive the pipe to move forward and drive the pipe to rotate, so that the laser cutting head a96 shoots laser downward to cut the pipe. The pipe that has been cut will be received by the short material rack c and guided to slide into the unloading container for storage. When the laser continuously cuts the pipe into short pipes, the vacuum cleaner is started synchronously, and the exhaust dust removal port a71 is connected to the vacuum cleaner, which can effectively collect and process the metal dust generated during the laser cutting process, significantly reduce the dust concentration in the workshop, improve the working environment of the workers, and reduce health risks.

[0030] In actual application, the vacuum cleaner is arranged in the horizontal chassis a1, and the vacuum cleaner is placed inside the horizontal chassis a1, which reduces the additional floor space. For a production workshop with limited space, this can more efficiently utilize the ground space and optimize the workshop layout. In addition, the distance between the vacuum cleaner and the exhaust dust removal port a71 is shortened, reducing the length of the pipeline, which not only simplifies the installation process, but also may reduce the suction loss and improve the dust removal efficiency.

[0031] For details, see Figure 1-Figure 4As shown, the feeding mechanism b includes at least three groups of rack modules b1 arranged at intervals, and a driving structure for driving all rack modules b1 to move synchronously, each rack module b1 includes a frame b11, a material guide inclined shaft b12 arranged on the top of the frame b11 and inclined downward, a material dividing structure b13 arranged on one side of the frame b11, and a material transporting structure b14 arranged on the other side of the frame b11; a transfer station b15 is provided at the unloading end of the material guide inclined shaft b12, a transfer inclined shaft b16 higher than the material guide inclined shaft b12 and inclined downward is provided downstream of the material guide inclined shaft b12, and the frame b11 is provided with a pipe for blocking the pipe located on the transfer station b15 The material continues to slide downward through the stopper b171, the material dividing structure b13 includes a dividing plate b131 and a material pushing cylinder b132 for driving the dividing plate b131 to move up and down, the top of the dividing plate b131 is provided with a sliding slope b1311, and the back of the dividing plate b131 is provided with a material blocking slope b1312 which is perpendicular to the material guiding inclined axis b12; the material pushing cylinder b132 is used to drive the dividing plate b131 to move upward, lift the pipes at the transfer station b15, so that the pipes on the dividing plate b131 are first transferred to the transfer inclined axis b16, and then slide to the material transport structure b14; the material transport structure b14 is used to realize loading of pipes transported along the longitudinal direction.

[0032] When loading, first place the pipe to be processed on the loading end of the material guide inclined shaft b12. The material guide inclined shaft b12 of the leftmost rack module b1 supports the left end of the pipe, the material guide inclined shaft b12 of the middle rack module b1 supports the middle part of the pipe, and the material guide inclined shaft b12 of the rightmost rack module b1 supports the right end of the pipe. With the support of three contact points, the pipe can be kept straight and the middle part of the pipe does not sink. In addition, since the contact friction between the pipe and the material guide inclined shaft b12 is small, the pipe naturally and smoothly slides down along the material guide inclined shaft b12 under the action of its own gravity until the pipe is blocked by the stopper b171 or the downstream pipe and stops sliding, and the pipe in contact with the stopper b171 stops sliding. The material is the pipe on the transfer station b15. At this time, the dividing plate b131 in the dividing structure b13 is lower than the pipe, and then the lifting cylinder b132 in the dividing structure b13 drives the dividing plate b131 to move upward, and the sliding slope b1311 of the dividing plate b131 lifts the pipe on the transfer station b15, and the pipe slides downward along the sliding slope b1311 to the transfer inclined axis b16, and the blocking slope b1312 of the dividing plate b131 blocks the pipe upstream of the transfer station b15 from sliding downward, and the pipe on the transfer inclined axis b16 also slides down into the material transport structure b14 under the action of its own weight, and finally the driving structure drives all the material transport structures b14 to move synchronously to transport the pipe to be processed to the laser pipe cutting machine, with better linkage and synchronization.

[0033] For details, see Figure 3 As shown, the dividing plate b131 is in the shape of "7", including a head b1313 and a vertical handle b1314; a first slider b133 is provided on the vertical handle b1314 of the dividing plate b131, and the first slider b133 is slidably connected to the first guide rail b134 on the frame b11. Under the auxiliary restriction of the first slider b133 and the first guide rail b134, the dividing plate b131 can still ensure the accurate lifting direction of the dividing plate b131 even if it is affected by the force of the pipe. The piston rod end of the lifting cylinder b132 is drivingly connected to the head b1313 of the dividing plate b131. During material separation, the piston rod of the material-lifting cylinder b132 extends out, driving the material-lifting plate b131 to lift the pipe on the transfer station b15 upwards. At the same time, the material-blocking slope b1312 on the material-lifting plate b131 blocks the pipe upstream of the transfer station b15 from sliding, and the pipe slides downward along the sliding slope b1311 on the material-lifting plate b131, thereby transferring the pipe to the transfer inclined axis b16; finally, the material-lifting cylinder b132 drives the material-lifting plate b131 to descend and reset, canceling the blockage of the pipe upstream of the transfer station b15, and the pipe on the material-guiding inclined axis b12 slides downward again under the action of its own weight, replenishing the pipe to the transfer station b15.

[0034] See Figure 3 and Figure 4 As shown, the material transport structure b14 includes a material transport longitudinal beam b141, a second guide rail b142 arranged on the material transport longitudinal beam b141 and extending along the length direction of the material transport longitudinal beam b141, a support and positioning assembly arranged on one end of the material transport longitudinal beam b141, and a transmission assembly used to drive the material transport longitudinal beam b141 to move longitudinally. A second slider b143 is fixed on the frame b11, and the second guide rail b142 is slidably connected to the second slider b143. After the support and positioning assembly carries the pipe, the driving structure drives the transmission assembly to operate, pulling the material transport longitudinal beam b141 to move longitudinally, thereby transferring the pipe to the laser pipe cutting machine. The material transport longitudinal beam b141 moves smoothly and accurately under the guidance of the second guide rail b142 and the second slider b143.

[0035] Furthermore, the support positioning assembly includes two symmetrically arranged positioning blocks b144, which together form a V-shaped pipe positioning opening b145. If the pipe is a round pipe, the round pipe will be inserted into the V-shaped pipe positioning opening b145 to achieve positioning. If the pipe is a square pipe or a special-shaped pipe, the pipe is supported by the material transport longitudinal beam b141 and limited by the two positioning blocks b144.

[0036] Preferably, see Figure 3As shown, the transmission assembly includes a first transmission shaft b1401 rotatably arranged on the frame b11, a second transmission shaft b1402, a first sprocket b1403 sleeved on the first transmission shaft b1401, a second sprocket b1404 sleeved on the second transmission shaft b1402, and a chain b1405 that transmits the first sprocket b1403 and the second sprocket b1404, and the chain b1405 is connected to the material transport longitudinal beam b141 through a transmission block b1406. When the driving structure drives the chain b1405 to rotate clockwise, the transmission block b1406 drives the material transport longitudinal beam b141 to move toward the direction close to the laser tube cutting machine, and when the driving structure drives the chain b1405 to rotate counterclockwise, the transmission block b1406 drives the material transport longitudinal beam b141 to move away from the laser tube cutting machine.

[0037] Preferably, the driving structure includes a loading driving motor drivingly connected to the first transmission shaft b1401 on one of the rack modules b1, and the first transmission shafts b1401 on two adjacent rack modules b1 are connected by a synchronous shaft b32. With this arrangement, one driving source can drive the material transport structures b14 on all rack modules b1 to move synchronously, with good coordination.

[0038] See Figure 5 and Figure 6 As shown, the short material connecting rack c includes a T-shaped support c5 fixed on the side wall, a first material receiving plate c11, a second material receiving plate c12 hinged to the first material receiving plate c11, a lifting vertical plate c2 fixed to the bottom of the first material receiving plate c11, a lifting rack c67 and a lifting guide rail c31 vertically arranged on the lifting vertical plate c2, and a material unloading cylinder c41 arranged on the lifting vertical plate c2, the piston rod end of the material unloading cylinder c41 is hinged to the second material receiving plate c12 through a joint, the T-shaped support c5 is located below the first material receiving plate c11, the T-shaped support c5 is provided with a fixed slider c32 slidably connected to the lifting guide rail c31, the T-shaped support c5 is provided with a lifting driver c6, and the output end of the lifting driver c6 is provided with a transmission gear c66 meshing with the lifting rack c67.

[0039] The lifting driver c6 drives the transmission gear c66 to rotate, thereby driving the lifting rack c67, the lifting vertical plate c2 and the lifting guide rail c31 to move up and down as a whole. Under the limit guidance of the lifting guide rail c31 and the fixed slider c32, it is ensured that the lifting vertical plate c2 maintains a vertical movement direction, thereby driving the first material receiving plate c11 and the second material receiving plate c12 on the lifting vertical plate c2 to move up and down. When the first material receiving plate c11 and the second material receiving plate c12 are in the material receiving state, the first material receiving plate c11 and the second material receiving plate c12 are spliced ​​to form a material receiving plane parallel to the horizontal plane. The lifting height of the surface can be dynamically raised and lowered and adjusted according to the data of the pipe or fixed at a suitable height. The optimal material receiving height is that the material receiving plane just supports the bottom of the pipe. The short pipe segments cut by the pipe cutting machine fall directly on the second material receiving plate c12 to reduce the collision and impact between the short pipe segments and the material receiving rack. Then the unloading cylinder c41 drives the second material receiving plate c12 to flip downward to form an angle with the horizontal plane, so that under the action of gravity, the short pipe segments on the second material receiving plate c12 slide downward along the second material receiving plate c12 to the unloading container, thereby realizing the unloading of the short pipe segments.

[0040] In this embodiment, the lifting driver c6 includes a reducer c61 and a hand wheel c63 connected to the input end of the reducer, and the transmission gear c66 is arranged on the output end of the reducer c61. Such an arrangement is energy-saving and has low manufacturing costs. Before production, the staff rotates the hand wheel c63 to drive the transmission gear c66 to rotate, thereby driving the components on the lifting vertical plate c2 to move up and down, and locks the hand wheel c63 after adjusting the height of the second receiving plate c12, so that the second receiving plate c12 is always kept at a suitable height when cutting the pipe (a height that can receive short pipe sections and does not interfere with the rotation of the pipe).

[0041] In order to prevent the handwheel c63 from rotating, a C-shaped clamp block c64 is provided on the lifting vertical plate c2. The transmission shaft of the handwheel c63 passes through the clamping opening of the C-shaped clamp block c64 and the C-shaped clamp block c64 is controlled by the clamping handle c65 to clamp or release the transmission shaft of the handwheel c63. The clamping and locking operation is simple.

[0042] See Figure 7As shown, the horizontal chassis a1 is provided with a Y-axis rack a81 extending in the front-to-back direction and two Y-axis guide rails a82 extending in the front-to-back direction, the mobile chuck assembly a4 includes a slide plate a41, a mobile chuck body a42 arranged on the slide plate a41, and a mobile drive motor a43, the output end of the mobile drive motor a43 is provided with a Y-axis gear meshing with the Y-axis rack a81, and the slide plate a41 is slidably connected with the Y-axis guide rail a82 through the Y-axis slider a83. The combination of the Y-axis guide rail a82 and the Y-axis slider a83 provides stable support and guidance, and can maintain the smooth operation of the mobile chuck assembly a4 even in the case of high-speed movement or heavy load, reduce shaking and vibration, and improve the reliability and durability of the equipment.

[0043] For details, see Fig.10 As shown, the variable diameter wheel support mechanism a6 includes a mounting plate a61 fixed on the horizontal base frame a1, a first lifting cylinder a62 upwardly disposed on a fixed seat, a receiving frame a63 drivingly connected to the first lifting cylinder a62, a support shaft a64 fixed on the receiving frame a63, a variable diameter wheel a65 rotatably disposed on the support shaft a64, and a locking structure a66 for fixing and locking the variable diameter wheel a65. According to the diameter of the pipe to be processed, the supporting contact surface of the variable diameter wheel a65 is rotated and adjusted, and the variable diameter wheel a65 is locked by the locking structure a66 after the adjustment is completed. The first lifting cylinder a62 drives the variable diameter wheel a65 on the receiving frame a63 to rise. When the pipe is cut, the variable diameter wheel a65 can effectively support the pipe, reduce the swing of the pipe in the up, down, left and right directions, and improve the cutting accuracy.

[0044] In this embodiment, see Fig. 9 As shown, the clamping support mechanism a5 includes a T-shaped plate a51, two clamping blocks a52 that are symmetrical and slidingly arranged on the T-shaped plate a51, a clamping driving cylinder a53 for driving the two clamping blocks a52 to move closer to or away from each other, and a lifting assembly for driving the T-shaped plate to move up and down. Specifically, the output end of the clamping driving cylinder a53 drives the corresponding clamping blocks a52 to move through two pull rods a58, and the lifting assembly includes a lifting seat a54, a second lifting cylinder a55 that is upwardly arranged on the lifting seat a54, and the piston rod end of the second lifting cylinder a55 is fixedly connected to the T-shaped plate a51. A support a56 is provided on the horizontal base frame a1, and the lifting seat a54 can be vertically slidably arranged on the support a56. The lifting seat a54 is provided with a height adjustment screw a57 that presses against the support a56. By turning the height adjustment screw a57, the initial height of the lifting seat a54 and the mechanism arranged on the lifting seat a54 can be adjusted, and the adjustment is flexible.

[0045] The second lifting cylinder a55 extends, driving the clamping block a52 on the T-shaped plate a51 to rise as a whole; the piston rod of the clamping driving cylinder a53 contracts, and the pull rod a58 drives the two clamping blocks a52 to move closer to each other, thereby clamping the pipe; through the extension of the clamping driving cylinder a53, the pull rod a58 drives the two clamping blocks a52 to move away from each other, thereby loosening the pipe. The loosening or clamping of the pipe is achieved by the extension or contraction of the clamping driving cylinder a53, thereby achieving follow-up clamping of the pipe.

[0046] In this embodiment, see Figure 8 As shown, the laser cutting assembly a9 includes an X-axis rack a91 and an X-axis guide rail a92 arranged on the top beam of the gantry a3, an X-axis slide a93 slidably connected to the X-axis guide rail a92 through an X-axis slider, an X-axis drive motor a94 arranged on the X-axis slide a93, a Z-axis linear module a95 arranged on the X-axis slide a93, and a laser cutting head a96 arranged on the slide of the Z-axis linear module a95, and the output end of the X-axis drive motor a94 is provided with an X-axis gear meshing with the X-axis rack a91. The laser cutting head a96 can not only move horizontally in the X-axis direction through the cooperation of the X-axis drive motor a94, the X-axis gear and the X-axis rack, but also can be lifted and lowered vertically in the Z-axis direction through the Z-axis linear module a95. Such three-dimensional motion capability ensures that the laser cutting head a96 can accurately cut short pipe sections of pipes according to a preset path.

[0047] 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" 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, rather than indicating or implying 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 limiting the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, an electrical connection, or mutual communication; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A laser tube cutting device, characterized in that: The invention comprises a horizontal pipe cutting machine and a feeding mechanism arranged beside the horizontal pipe cutting machine, wherein the horizontal pipe cutting machine comprises a horizontal base frame, a fixed chuck assembly and a gantry arranged at the top of the front end of the horizontal base frame, a laser cutting assembly arranged on the gantry and movable along the X-axis and the Z-axis, and a movable chuck assembly slidably arranged on the horizontal base frame forward and backward, the horizontal base frame is provided with a clamping support mechanism and a reducing wheel support mechanism, the clamping support mechanism is used for transporting the pipes on the feeding mechanism, the pipes can be clamped by the movable chuck assembly and the fixed chuck assembly after being centered and raised, the reducing wheel support mechanism is used for supporting the pipes, the laser cutting assembly is used for laser cutting the pipes, the front end of the horizontal base frame is provided with a vertical plate located below the fixed chuck assembly, the vertical plate is provided with an exhaust dust removal port, the exhaust dust removal port is connected to a vacuum cleaner, the front end of the horizontal base frame is provided with a side enclosure, and the side enclosure is provided with a short material connection rack located below the laser cutting assembly.

2. The laser tube cutting equipment according to claim 1, characterized in that: The vacuum cleaner is arranged in a horizontal base frame.

3. The laser tube cutting equipment according to claim 1, characterized in that: The feeding mechanism includes at least three groups of material rack modules arranged at intervals, and a driving structure that drives all the material rack modules to move synchronously, each material rack module includes a frame, a material guide inclined shaft arranged on the top of the frame and inclined downward, a material dividing structure arranged on one side of the frame, and a material transporting structure arranged on the other side of the frame; a transfer station is provided at the unloading end of the material guide inclined shaft, a transfer inclined shaft that is higher than the material guide inclined shaft and inclined downward is provided downstream of the material guide inclined shaft, and a transfer inclined shaft for blocking the material in the middle is provided on the frame. The pipes on the transfer station continue to slide downward, and the material distribution structure includes a material distribution plate and a material lifting cylinder for driving the material distribution plate to move up and down. The top of the material distribution plate is provided with a sliding slope, and the back of the material distribution plate is provided with a material blocking slope that is perpendicular to the material guide inclined axis; the material lifting cylinder is used to drive the material distribution plate to move upward, lift the pipes at the transfer station, so that the pipes on the material distribution plate are first transferred to the transfer inclined axis, and then slide to the material transport structure; the material transport structure is used to load the pipes transported along the longitudinal direction.

4. The laser tube cutting equipment according to claim 3, characterized in that: The material dividing plate is in a "7" shape, including a head and a vertical handle; a first slider is provided on the vertical handle of the material dividing plate, the first slider is slidably connected to the first guide rail on the frame, and the piston rod end of the ejecting cylinder is drivingly connected to the head of the material dividing plate.

5. The laser tube cutting equipment according to claim 3, characterized in that: The material transport structure includes a material transport longitudinal beam, a second guide rail arranged on the material transport longitudinal beam and extending along the length direction of the material transport longitudinal beam, a supporting and positioning assembly arranged on one end of the material transport longitudinal beam, and a transmission assembly for driving the material transport longitudinal beam to move longitudinally. A second slider is fixed on the frame, and the second guide rail is slidably connected to the second slider; the supporting and positioning assembly includes two symmetrically arranged positioning blocks, and the two positioning blocks together form a V-shaped pipe positioning opening.

6. The laser tube cutting equipment according to claim 1, characterized in that: The short material receiving rack includes a T-shaped support fixed on the side wall, a first material receiving plate, a second material receiving plate hinged to the first material receiving plate, a lifting vertical plate fixed to the bottom of the first material receiving plate, a lifting rack and a lifting guide rail vertically arranged on the lifting vertical plate, and a material unloading cylinder arranged on the lifting vertical plate, the piston rod end of the material unloading cylinder is hinged to the second material receiving plate through a joint, the T-shaped support is located below the first material receiving plate, the T-shaped support is provided with a fixed slider slidably connected to the lifting guide rail, the T-shaped support is provided with a lifting drive, and the output end of the lifting drive is provided with a transmission gear meshing with the lifting rack.

7. The laser tube cutting equipment according to claim 1, characterized in that: The variable diameter wheel supporting mechanism includes a mounting plate fixed on a horizontal base frame, a first lifting cylinder arranged upward on a fixed seat, a receiving frame drivingly connected to the first lifting cylinder, a support shaft fixed on the receiving frame, a variable diameter wheel rotatably arranged on the support shaft, and a locking structure for fixing and locking the variable diameter wheel.

8. The laser tube cutting equipment according to claim 1, characterized in that: The clamping support mechanism includes a T-shaped plate, two clamping blocks that are symmetrical and slidably arranged on the T-shaped plate, a clamping driving cylinder for driving the two clamping blocks to move closer to or away from each other, and a lifting component for driving the T-shaped plate to move up and down.

9. The laser tube cutting equipment according to claim 8, characterized in that: The lifting assembly includes a lifting seat, a second lifting cylinder arranged upward on the lifting seat, the piston rod end of the second lifting cylinder is fixedly connected to the T-shaped plate, a support is provided on the horizontal base frame, the lifting seat can be vertically slidably arranged on the support, and the lifting seat is provided with a height adjustment screw pressed against the support.

10. The laser tube cutting equipment according to claim 1, characterized in that: The laser cutting assembly includes an X-axis rack and an X-axis guide rail arranged on the top beam of the gantry, an X-axis slide slidably connected to the X-axis guide rail through an X-axis slider, an X-axis drive motor arranged on the X-axis slide, a Z-axis linear module arranged on the X-axis slide, and a laser cutting head arranged on the slide of the Z-axis linear module, and the output end of the X-axis drive motor is provided with an X-axis gear meshing with the X-axis rack for transmission.

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