Laser pipe cutting equipment

Abstract

The utility model 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, an air draft dust removal opening is formed in the vertical plate and connected with a dust collector, and the dust collector is connected with the horizontal pipe cutting machine. 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 utility model relates to the technical field of laser pipe cutting, and particularly relates to a laser pipe cutting device. Background Art

[0002] Compared with cutting pipes by using a cutting knife wheel, laser cutting can not only provide extremely high precision, but also has smooth cutting edges without burrs, eliminating the need for subsequent grinding or trimming work. This not only improves production efficiency but also reduces additional processing costs. Although the existing pipe cutting machines on the market can handle the processing of both long pipe segments and short pipe segments, they occupy a large space and have high manufacturing costs. Therefore, it is necessary to develop a laser pipe cutting device dedicated to cutting short pipe segments. Additionally, during the processing, frequent laser cutting of short pipe segments generates a large amount of metal dust, seriously polluting the workshop environment. Therefore, the laser pipe cutting device needs to have a function of extracting wind and removing dust. Summary of the Utility Model

[0003] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a laser pipe cutting device dedicated to cutting short pipe segments and solve the problem of dust pollution generated during pipe cutting.

[0004] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0005] A laser pipe cutting device includes a horizontal pipe cutting machine and a feeding mechanism arranged beside the horizontal pipe cutting machine. The horizontal pipe cutting machine includes a horizontal chassis, a fixed chuck assembly and a gantry arranged at the top of the front end of the horizontal chassis, a laser cutting assembly that can move along the X-axis and Z-axis on the gantry, and a moving chuck assembly that can slide back and forth on the horizontal chassis. A clamping support mechanism and a variable-diameter wheel support mechanism are arranged on the horizontal chassis. The clamping support mechanism is used to transfer the pipe on the feeding mechanism. After the pipe is centered and lifted, it can be clamped by the moving chuck assembly and the fixed chuck assembly. The variable-diameter wheel support mechanism is used to support the pipe. The laser cutting assembly is used to perform laser cutting on the pipe. A vertical plate is arranged at the front end of the horizontal chassis below the fixed chuck assembly. An air extraction and dust removal port is opened on the vertical plate, and the air extraction and dust removal port is connected to a vacuum cleaner. A side enclosure is arranged at the front end of the horizontal chassis, and a short material receiving rack is arranged on the side enclosure below the laser cutting assembly.

[0006] As a further improvement of the above technical solution, the vacuum cleaner is arranged inside the horizontal chassis.

[0007] As a further improvement of the above technical solution, the loading mechanism includes at least three sets of spaced-apart rack modules and a driving structure for driving all the rack modules to move synchronously. Each rack module includes a rack, a guiding inclined shaft arranged at the top of the rack and inclined downward, a material distributing structure arranged on one side surface of the rack, and a material transporting structure arranged on the other side surface of the rack; a transfer station is provided at the discharging end of the guiding inclined shaft, and a transfer inclined shaft higher than the guiding inclined shaft and inclined downward is arranged downstream of the guiding inclined shaft. A stop block for blocking the pipe located at the transfer station from continuing to slide downward is provided on the rack. The material distributing structure includes a distributing plate and a lifting cylinder for driving the distributing plate to move up and down. A sliding inclined surface is provided at the top of the distributing plate, and a material blocking inclined surface perpendicular to the guiding inclined shaft is provided on the back of the distributing plate; the lifting cylinder is used to drive the distributing plate to move upward, lift the pipe located at the transfer station, so that the pipe on the distributing plate is first transferred to the transfer inclined shaft and then slides to the material transporting structure; the material transporting structure is used to longitudinally transport the pipe to achieve loading.

[0008] As a further improvement of the above technical solution, the distributing plate is in a "7" shape, including a head and a vertical handle part; a first slider is arranged on the vertical handle part of the distributing plate, and the first slider is slidably connected with a first guide rail on the rack. The piston rod end of the lifting cylinder is drivingly connected with the head of the distributing plate.

[0009] As a further improvement of the above technical solution, the material transporting structure includes a material transporting longitudinal beam, a second guide rail arranged on the material transporting longitudinal beam and extending along the length direction of the material transporting longitudinal beam, a supporting and positioning component arranged at one end of the material transporting longitudinal beam, and a transmission component for driving the material transporting longitudinal beam to move longitudinally. A second slider is fixed on the rack, and the second guide rail is slidably connected with the second slider; the supporting and positioning component 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 panel, 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 blanking cylinder arranged on the lifting vertical plate. The piston rod end of the blanking cylinder is hinged to the second material receiving plate through a joint. The T-shaped support is located below the first material receiving plate. A fixed slider slidably connected with the lifting guide rail is arranged on the T-shaped support. A lifting driver is arranged on the T-shaped support, and a transmission gear meshing with the lifting rack is arranged at the output end of the lifting driver.

[0011] As a further improvement of the above technical solution, the variable-diameter wheel support mechanism includes a mounting flat plate fixed on the horizontal chassis, a first lifting cylinder arranged upward on the 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 fixedly 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 symmetrically arranged left and right and slidably arranged on the T-shaped plate, a clamping driving cylinder for driving the two clamping blocks to approach or separate 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 and a second lifting cylinder arranged upward on the lifting seat. The end of the piston rod of the second lifting cylinder is fixedly connected to the T-shaped plate. A support is provided on the horizontal chassis, and the lifting seat is vertically slidably arranged on the support. A height-adjusting screw pressing against the support is arranged on the lifting seat.

[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 table slidably connected to the X-axis guide rail through an X-axis slider, an X-axis driving motor arranged on the X-axis slide table, a Z-axis linear module arranged on the X-axis slide table, and a laser cutting head arranged on the slide table of the Z-axis linear module. An X-axis gear meshing with the X-axis rack is arranged at the output end of the X-axis driving motor.

[0015] The beneficial effects of the present utility model: Compared with the prior art, the laser pipe cutting equipment is dedicated to cutting pipes into short pipe segments, with a compact structure and low manufacturing cost; in addition, the laser pipe cutting equipment can effectively collect and process the metal dust generated during the process of laser cutting short pipe segments by arranging an air extraction and dust removal port connected to a dust collector on the horizontal chassis, significantly reducing the dust concentration in the workshop, improving the working environment of workers, and reducing health risks. Description of the Drawings

[0016] Figure 1 is a three-dimensional view of the laser pipe cutting equipment provided by the present utility model Figure 1 .

[0017] Figure 2 is a three-dimensional view of the laser pipe cutting equipment provided by the present utility model Figure 2 .

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

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

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

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

[0022] Figure 7 It is Figure 1 The partial enlarged view of area A in

[0023] Figure 8 It is Figure 1 The partial enlarged view of area B in

[0024] Figure 9 The three-dimensional view of the clamping support mechanism in the present utility model

[0025] Figure 10 The three-dimensional view of the variable diameter wheel support mechanism in the present utility model

[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 utility model provides a laser tube cutting device. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model 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 utility model and are not used to limit the protection scope of the utility model.

[0028] See also Figure 1 and Figure 2, the present utility model provides a laser pipe cutting device, including a horizontal pipe cutting machine a, a feeding mechanism b arranged beside the horizontal pipe cutting machine a. The horizontal pipe cutting machine a includes a horizontal chassis a1, a fixed chuck assembly a2 and a gantry a3 arranged at the front top of the horizontal chassis a1, a laser cutting assembly a9 that can move along the X-axis and Z-axis on the gantry a3, and a moving chuck assembly a4 that can slide back and forth on the horizontal chassis a1. A clamping support mechanism a5 and a variable diameter wheel support mechanism a6 are arranged on the horizontal chassis a1. The clamping support mechanism a5 is used to transfer the pipe on the feeding mechanism b. After the pipe is centered and lifted, it can be clamped by the moving chuck assembly a4 and the fixed chuck assembly a2. The variable diameter wheel support mechanism a6 is used to support the pipe. The laser cutting assembly a9 is used to perform laser cutting on the pipe. A vertical plate a7 is arranged at the front end of the horizontal chassis a1 below the fixed chuck assembly a2. An air extraction and dust removal port a71 is opened on the vertical plate a7. The air extraction and dust removal port a71 is connected to a vacuum cleaner. A side enclosure a10 is arranged at the front end of the horizontal chassis a1. A short material receiving rack c is arranged on the side enclosure a10 below the laser cutting assembly.

[0029] During actual operation, the pipe to be processed is automatically transported by the feeding mechanism b above the clamping support mechanism a5. The clamping support mechanism a5 rises to clamp the pipe, center the pipe, then the moving 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 towards the fixed chuck assembly a2 so that the moving chuck assembly a4 can clamp the head of the pipe. The moving chuck assembly a4 and the moving chuck assembly a4 jointly drive the pipe to move forward and drive the pipe to rotate. Thus, the laser cutting head a96 shoots laser downward to cut the pipe. The cut pipe will be received by the short material receiving rack c and guided to slide into the blanking container for storage. When the laser continuously cuts the pipe into short pipe materials, the vacuum cleaner is started synchronously. The air extraction and 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 workers, and reduce health risks.

[0030] In practical applications, the vacuum cleaner is arranged inside the horizontal chassis a1. Placing the vacuum cleaner inside the horizontal chassis a1 reduces the additional floor area. For a production workshop with limited space, this can make more efficient use of the floor space and optimize the workshop layout. In addition, the distance between the vacuum cleaner and the air extraction and dust removal port a71 is shortened, reducing the pipe length. This not only simplifies the installation process but also may reduce the suction loss and improve the dust removal efficiency.

[0031] Specifically, see Figures 1 - 4As shown in the figure, the feeding mechanism b includes at least three sets of spaced-apart rack modules b1 and a driving structure for driving all the rack modules b1 to move synchronously. Each rack module b1 includes a rack b11, a guiding inclined shaft b12 arranged at the top of the rack b11 and inclined downward, a material dividing structure b13 arranged on one side surface of the rack b11, and a material transporting structure b14 arranged on the other side surface of the rack b11; a transfer station b15 is provided at the discharging end of the guiding inclined shaft b12, a transfer inclined shaft b16 higher than the guiding inclined shaft b12 and inclined downward is arranged downstream of the guiding inclined shaft b12, a stop block b171 for blocking the continuous downward sliding of the pipe located at the transfer station b15 is arranged on the rack b11, the material dividing structure b13 includes a material dividing plate b131 and a top material cylinder b132 for driving the material dividing plate b131 to move up and down, a sliding inclined surface b1311 is arranged at the top of the material dividing plate b131, and the back surface of the material dividing plate b131 is a blocking inclined surface b1312 perpendicular to the guiding inclined shaft b12; the top material cylinder b132 is used to drive the material dividing plate b131 to move upward, lift the pipe located at the transfer station b15, so that the pipe on the material dividing plate b131 is first transferred to the transfer inclined shaft b16 and then slides to the material transporting structure b14; the material transporting structure b14 is used to transport the pipe along the longitudinal direction to achieve feeding.

[0032] During feeding, first place the pipe to be processed at the feeding end of the guiding inclined shaft b12. The guiding inclined shaft b12 of the rack module b1 at the leftmost position supports the left end of the pipe, the guiding inclined shaft b12 of the rack module b1 in the middle supports the middle part of the pipe, and the guiding inclined shaft b12 of the rack module b1 at the rightmost position supports the right end of the pipe. With the support of the three contact points, the pipe can be ensured to be straight and the middle part of the pipe does not sink; in addition, due to the small contact friction between the pipe and the guiding inclined shaft b12, under the action of its own gravity, the pipe naturally and smoothly slides down along the guiding inclined shaft b12 until it is blocked by the stop block b171 or the downstream pipe and stops sliding. The pipe in contact with the stop block b171 is the pipe at the transfer station b15. At this time, the material dividing plate b131 in the material dividing structure b13 is lower than the pipe. Then, the top material cylinder b132 in the material dividing structure b13 drives the material dividing plate b131 to move upward, and the sliding inclined surface b1311 of the material dividing plate b131 lifts the pipe at the transfer station b15 upward. The pipe slides downward along the sliding inclined surface b1311 to the transfer inclined shaft b16, and the blocking inclined surface b1312 of the material dividing plate b131 blocks the downward sliding of the pipe upstream of the transfer station b15. The pipe on the transfer inclined shaft b16 also slides into the material transporting structure b14 under the action of its own gravity. Finally, the driving structure drives all the material transporting structures b14 to move synchronously, and transports the pipe to be processed to the laser pipe cutting machine, with better linkage and synchronization.

[0033] Specifically, seeFigure 3 As shown, the material distribution plate b131 is in a "7" shape, including a head b1313 and a vertical handle b1314; a first slider b133 is provided on the vertical handle b1314 of the material distribution plate b131, and the first slider b133 is slidably connected to a first guide rail b134 on the frame b11. With the assistance and restriction of the first slider b133 and the first guide rail b134, even when affected by the force of the pipe, the lifting direction of the material distribution plate b131 is still ensured to be accurate. The piston rod end of the ejector cylinder b132 is drivingly connected to the head b1313 of the material distribution plate b131. During material distribution, the piston rod of the ejector cylinder b132 extends, driving the material distribution plate b131 to lift the pipe on the transfer station b15 upward. At the same time, the material blocking inclined surface b1312 on the material distribution plate b131 blocks the sliding of the pipe upstream of the transfer station b15, and the pipe slides downward along the sliding inclined surface b1311 on the material distribution plate b131, thereby transferring the pipe to the transfer inclined shaft b16; finally, the ejector cylinder b132 drives the material distribution plate b131 to descend and reset, canceling the blockage of the pipe upstream of the transfer station b15, and the pipe on the guide inclined shaft b12 slides downward under its own weight again to replenish the pipe on the transfer station b15.

[0034] See Figure 3 and Figure 4 As shown, the material transportation structure b14 includes a material transportation longitudinal beam b141, a second guide rail b142 provided on the material transportation longitudinal beam b141 and extending along the length direction of the material transportation longitudinal beam b141, a support and positioning assembly provided at one end of the material transportation longitudinal beam b141, and a transmission assembly for driving the longitudinal movement of the material transportation longitudinal beam b141. 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 transportation longitudinal beam b141 to move longitudinally, thereby transporting the pipe to the laser pipe cutting machine. The material transportation 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 and positioning assembly includes two symmetrically arranged positioning blocks b144, and the two positioning blocks b144 together form a V-shaped pipe positioning opening b145. If the pipe is a round pipe, the round pipe will be stuck in the V-shaped pipe positioning opening b145 for positioning. If the pipe is a square pipe or a special-shaped pipe, the pipe is supported by the material transportation longitudinal beam b141, and the two positioning blocks b144 are used for limiting.

[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 drives the first sprocket b1403 and the second sprocket b1404 to be connected. The chain b1405 is connected to the material transporting 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 transporting longitudinal beam b141 to move towards the laser pipe cutting machine. When the driving structure drives the chain b1405 to rotate counterclockwise, the transmission block b1406 drives the material transporting longitudinal beam b141 to move away from the laser pipe 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 drivingly connected through a synchronizing shaft b32. By setting it like this, one driving source can drive the material transporting structures b14 on all rack modules b1 to move synchronously, and the coordination is good.

[0038] See Figure 5 and Figure 6 As shown, the short material receiving rack c includes a T-shaped support c5 fixed on the side panel, 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 blanking cylinder c41 arranged on the lifting vertical plate c2. The end of the piston rod of the blanking 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. A fixed slider c32 slidably connected to the lifting guide rail c31 is provided on the T-shaped support c5. A lifting driver c6 is provided on the T-shaped support c5, and a transmission gear c66 meshing with the lifting rack c67 is provided at the output end of the lifting driver c6.

[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, and then drives the first receiving plate c11 and the second receiving plate c12 on the lifting vertical plate c2 to move up and down. When the first receiving plate c11 and the second receiving plate c12 are in the receiving state, the first receiving plate c11 and the second receiving plate c12 are spliced to form a receiving plane parallel to the horizontal plane. The lifting height of the receiving plane can be dynamically adjusted up and down according to the data of the pipe or fixed at a suitable height. The preferred receiving height is that the receiving plane just supports the bottom of the pipe. The short pipe segments cut and severed by the pipe cutting machine directly fall on the second receiving plate c12 to reduce the collision impact between the short pipe segments and the receiving rack. Subsequently, the blanking cylinder c41 drives the second receiving plate c12 to turn downward to form an angle with the horizontal plane, so that under the action of gravity, the short pipe segments on the second receiving plate c12 slide down along the second receiving plate c12 into the blanking container, thereby realizing the blanking of the short pipe segments.

[0040] In this embodiment, the lifting driver c6 includes a reducer c61 and a handwheel c63 connected to the input end of the reducer. The transmission gear c66 is arranged on the output end of the reducer c61. Such a setting saves energy and has a low manufacturing cost. Before production, the staff rotates the handwheel c63 to drive the transmission gear c66 to rotate, thereby driving the components on the lifting vertical plate c2 to move up and down. After adjusting the height of the second receiving plate c12, the handwheel c63 is locked, so that the second receiving plate c12 always maintains a suitable height during pipe cutting (a height that can receive the short pipe segments and does not interfere with the rotation of the pipe).

[0041] In order to prevent the handwheel c63 from rotating on its own, a C-shaped clamp c64 is arranged on the lifting vertical plate c2. The transmission shaft of the handwheel c63 passes through the clamping opening of the C-shaped clamp c64, and the clamping handle c65 is used to control the C-shaped clamp c64 to clamp or loosen the transmission shaft of the handwheel c63. The clamping and locking operation is simple and convenient.

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

[0043] Specifically, as shown in Figure 10 As shown in the figure, the variable-diameter wheel support mechanism a6 includes a mounting plate a61 fixed on the horizontal chassis a1, a first lifting cylinder a62 arranged upward on the 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 arranged on the support shaft a64, and a locking structure a66 for fixedly locking the variable-diameter wheel a65. According to the diameter of the pipe to be processed, the support contact surface of the variable-diameter wheel a65 is rotated and adjusted. After the adjustment is completed, the variable-diameter wheel a65 is locked by the locking structure a66. The first lifting cylinder a62 drives the variable-diameter wheel a65 on the receiving frame a63 to rise. The variable-diameter wheel a65 can effectively support the pipe during cutting, reduce the swing of the pipe in the up-down, left-right directions, and improve the cutting accuracy.

[0044] In this embodiment, as shown in Figure 9 As shown in the figure, the clamping support mechanism a5 includes a T-shaped plate a51, two clamping blocks a52 symmetrically arranged left and right and slidably arranged on the T-shaped plate a51, a clamping drive cylinder a53 for driving the two clamping blocks a52 to approach or separate 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 drive cylinder a53 drives the corresponding clamping block a52 to move through two pull rods a58. The lifting assembly includes a lifting seat a54 and a second lifting cylinder a55 arranged upward on the lifting seat a54. 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 chassis a1. The lifting seat a54 is vertically slidably arranged on the support a56. A height-adjusting screw a57 pressing against the support a56 is arranged on the lifting seat a54. By screwing the height-adjusting 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 approach each other, thereby clamping the pipe; by 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 releasing the pipe. The loosening or clamping of the pipe is achieved by the extension or contraction of the clamping driving cylinder a53, realizing the follow-up clamping of the pipe.

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

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 can communicate with each other; it can be a direct connection, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] It will be understood that those of ordinary skill in the art can make equivalent substitutions or changes based on the technical solution of the present utility model and its inventive concept, and all such changes or substitutions shall fall within the protection scope of the present utility model.

Claims

1. A laser tube cutting device, characterized in that, It includes a horizontal pipe cutting machine and a feeding mechanism arranged beside the horizontal pipe cutting machine. The horizontal pipe cutting machine includes a horizontal chassis, a fixed chuck assembly and a gantry arranged at the top of the front end of the horizontal chassis, a laser cutting assembly that can move along the X-axis and Z-axis on the gantry, and a moving chuck assembly that can slide back and forth on the horizontal chassis. A clamping support mechanism and a variable-diameter wheel support mechanism are arranged on the horizontal chassis. The clamping support mechanism is used to transfer the pipes on the feeding mechanism. After the pipes are centered and lifted, they can be clamped by the moving chuck assembly and the fixed chuck assembly. The variable-diameter wheel support mechanism is used to support the pipes. The laser cutting assembly is used to perform laser cutting on the pipes. A vertical plate is arranged at the front end of the horizontal chassis below the fixed chuck assembly. An air extraction and dust removal port is opened on the vertical plate, and the air extraction and dust removal port is connected to a vacuum cleaner. A side enclosure is arranged at the front end of the horizontal chassis, and a short material receiving rack is arranged on the side enclosure below the laser cutting assembly.

2. The laser tube cutting device according to claim 1, characterized in that, The vacuum cleaner is arranged inside the horizontal chassis.

3. The laser tube cutting device according to claim 1, characterized in that, The feeding mechanism includes at least three groups of spaced-apart rack modules and a driving structure for driving all the rack modules to move synchronously. Each rack module includes a rack, a guiding inclined shaft arranged at the top of the rack and inclined downward, a material distributing structure arranged on one side surface of the rack, and a material transporting structure arranged on the other side surface of the rack. A transfer station is arranged at the discharging end of the guiding inclined shaft. A transfer inclined shaft higher than the guiding inclined shaft and inclined downward is arranged downstream of the guiding inclined shaft. A stop block for blocking the pipes located at the transfer station from continuing to slide downward is arranged on the rack. The material distributing structure includes a material distributing plate and a top material cylinder for driving the material distributing plate to move up and down. A sliding inclined surface is arranged at the top of the material distributing plate, and a material blocking inclined surface perpendicular to the guiding inclined shaft is arranged on the back of the material distributing plate. The top material cylinder is used to drive the material distributing plate to move upward, lift the pipes located at the transfer station, so that the pipes on the material distributing plate are first transferred to the transfer inclined shaft and then slide to the material transporting structure. The material transporting structure is used to longitudinally transport the pipes to achieve feeding.

4. The laser pipe cutting device according to claim 3, wherein, The material distributing plate is in a "7" shape, including a head and a vertical handle part. A first slider is arranged on the vertical handle part of the material distributing plate, and the first slider is slidably connected to a first guide rail on the rack. The piston rod end of the top material cylinder is drivingly connected to the head of the material distributing plate.

5. The laser pipe cutting device according to claim 3, characterized in that, The material transporting structure includes a material transporting longitudinal beam, a second guide rail arranged on the material transporting longitudinal beam and extending along the length direction of the material transporting longitudinal beam, a supporting and positioning assembly arranged at one end of the material transporting longitudinal beam, and a transmission component for driving the material transporting longitudinal beam to move longitudinally. A second slider is fixed on the rack, 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 device 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 blanking cylinder arranged on the lifting vertical plate. The end of the piston rod of the blanking 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 driver, and the output end of the lifting driver is provided with a transmission gear meshing with the lifting rack.

7. The laser pipe cutting device according to claim 1, characterized in that, The variable diameter wheel support mechanism includes a mounting flat plate fixed on the horizontal bottom frame, a first lifting cylinder arranged upward on the 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 fixedly locking the variable diameter wheel.

8. The laser pipe cutting device according to claim 1, characterized in that, The clamping support mechanism includes a T-shaped plate, two clamping blocks symmetrically arranged left and right and slidably arranged on the T-shaped plate, a clamping drive cylinder for driving the two clamping blocks to approach or separate from each other, and a lifting assembly for driving the T-shaped plate to move up and down.

9. The laser tube cutting device according to claim 8, wherein, The lifting assembly includes a lifting seat and a second lifting cylinder arranged upward on the lifting seat. The end of the piston rod of the second lifting cylinder is fixedly connected to the T-shaped plate. The horizontal bottom frame is provided with a support. The lifting seat is vertically slidably arranged on the support. The lifting seat is provided with a height adjusting screw pressing against the support.

10. The laser pipe cutting device 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 table slidably connected to the X-axis guide rail through an X-axis slider, an X-axis drive motor arranged on the X-axis slide table, a Z-axis linear module arranged on the X-axis slide table, and a laser cutting head arranged on the slide table of the Z-axis linear module. The output end of the X-axis drive motor is provided with an X-axis gear meshing with the X-axis rack for transmission.

Images