An automatic feeding high-precision beveling and cutting pipe machine

Abstract

This utility model relates to the field of laser cutting and discloses an automatic feeding high-precision beveling and cutting machine for pipes. It includes a bed, a gantry frame, a laser cutting assembly, a front chuck structure, a rear chuck structure, a front drive mechanism, a rear drive mechanism, and a feeding rack. A first slide rail is provided on the bed, and a first slider is provided on both the front and rear chuck structures. A first blocking plate is provided on both the front and rear side walls of the front chuck structure. A second blocking plate is fixedly connected to the side wall of the bed. A rotatable feeding drive wheel and a feeding driven wheel are respectively provided upstream and downstream of the feeding rack, and a feeding chain is wound between the feeding drive wheel and the feeding driven wheel. Multiple feeding limit blocks are provided on the feeding chain, and a feeding storage slot is formed between adjacent feeding limit blocks. The first and second blocking plates effectively block most of the sparks generated during cutting, further enhancing the protection of the first slide rail in the laser processing area.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting, and in particular to an automatic feeding high-precision beveling pipe cutting machine. Background Technology

[0002] Currently, most laser cutting of long and heavy tubes is achieved using chuck-type laser tube cutting machines. These machines mainly consist of a bed, multiple chuck structures that can reciprocate along the length of the bed, and laser cutting components for cutting the tubes. In addition, an automatic tube feeding system can be equipped with a feeding rack. Tubes are fed one by one to the upstream of the feeding rack, where they are gradually transported downstream.

[0003] The chuck structure is heavy, and relying solely on the drive mechanism to move it back and forth along the length of the machine bed results in insufficient smoothness and precision. Therefore, slide rails are typically installed on the machine bed, and sliders are installed on the chuck structure. However, the high-energy laser beam emitted by the laser cutting head in the laser cutting assembly keeps the laser processing area at a high temperature. Furthermore, the processing process generates a large amount of metal dust and sparks, causing the slide rails located in the laser processing area to be affected by the high temperature, dust, and sparks. This not only increases sliding friction resistance but also accelerates the wear of the slide rail sliders. While accelerator dust covers are installed on both the front and rear sides of the chuck structure to house the slide rails, these covers are prone to perforation under high temperatures and during spark spray, requiring frequent replacement. Moreover, dust easily accumulates in the folds of the dust covers, and over time, dust buildup can cause the dust covers to become stuck during expansion and contraction, hindering the normal movement of the chuck structure and failing to fundamentally solve the problem of slide rail protection and lifespan in harsh environments.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an automatic feeding high-precision beveling pipe cutting machine, which aims to solve the problems of insufficient protection of slide rail slider and short service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic feeding high-precision beveling and cutting pipe machine includes a bed, a gantry frame fixedly mounted on the bed and located at the front end of the bed, a laser cutting assembly mounted on the gantry frame and capable of reciprocating along the left-right and up-down directions of the gantry frame and performing beveling and cutting of pipes, a front chuck structure and a rear chuck structure mounted on the bed, a front drive mechanism for driving the front chuck structure to reciprocate along the front-back direction of the bed, a rear drive mechanism for driving the rear chuck structure to reciprocate along the front-back direction of the bed, and a plurality of feeding racks fixedly mounted on the bed and spaced apart; the bed frame is provided with a first slide rail extending along its front-back direction, and both the front chuck structure and the rear chuck structure are provided with sliding parts that slide along the first slide rail. The first slider is connected; the front and rear sidewalls of the front chuck structure are each provided with a first blocking plate, which is used to block the first slide rail and the laser processing area located below the laser cutting assembly; a second blocking plate is also provided above the first slide rail located in the laser processing area and fixedly connected to the sidewall of the bed; the upstream and downstream of the feeding rack are respectively provided with a rotatable feeding drive wheel and a feeding driven wheel, and a feeding chain is wound around the feeding drive wheel and the feeding driven wheel. Multiple feeding limit blocks are provided on the outer surface of the feeding chain, and a feeding storage slot is formed between two adjacent feeding limit blocks. The feeding drive wheel is connected to the feeding drive mechanism through a first connecting shaft.

[0008] The automatic feeding high-precision beveling and pipe cutting machine, wherein the second blocking plate includes a mounting part for fixed connection with the side wall of the bed, an inclined part integrally formed with the end of the mounting part, and an extension part integrally formed with the end of the inclined part; the inclined part is inclined from top to bottom, and the lower end of the extension part extends downward; the second blocking plate is located between the bed and the first blocking plate.

[0009] The automatic feeding high-precision beveling and pipe cutting machine is provided with a second slide rail extending along its front-rear direction on the upper surface of the bed. The front drive mechanism and the rear drive mechanism are each provided with a second slider that is slidably connected to the second slide rail. The first slide rail is provided on the side wall of the bed facing the operator. Both the first slide rail and the second slide rail are located away from the laser cutting component.

[0010] The automatic feeding high-precision beveling and pipe cutting machine includes a front chuck structure comprising a front side plate, a front chuck disposed on the side wall of the front side plate facing the operator, and a front rotary motor for driving the jaws of the front chuck to rotate; a first slider is disposed on the side wall of the front side plate facing the machine bed; the rear chuck structure includes a rear side plate, a rear chuck disposed on the side wall of the rear side plate facing the operator, and a rear rotary motor for driving the jaws of the rear chuck to rotate; the first slider is disposed on the side wall of the rear side plate facing the machine bed.

[0011] The automatic feeding high-precision beveling and pipe cutting machine includes a front drive mechanism comprising a front cross plate fixedly connected to the front side mounting plate, a front drive motor mounted on the front cross plate, a front drive gear driven through the output end of the front drive motor, and a drive rack arranged along the front-rear direction of the bed; the front drive gear and the drive rack mesh. The rear drive mechanism includes a rear cross plate fixedly connected to the rear side mounting plate, a rear drive motor mounted on the rear cross plate, and a rear drive gear driven through the output end of the rear drive motor; the rear drive gear and the drive rack mesh.

[0012] The automatic feeding high-precision beveling and pipe cutting machine is provided with an oil supply can on the front chuck structure and the rear chuck structure. An oil supply channel is provided on both the front and rear horizontal plates. The oil supply channel is connected to the oil supply can through a first pipe. A lubricating cotton wheel is provided on the oil supply channel. The lubricating cotton wheel is used to provide lubricating oil to the drive rack.

[0013] The automatic feeding high-precision beveling and pipe cutting machine is provided with pipe distributors on both the front and rear horizontal plates. The pipe distributors are connected to the oil supply tank through second pipes, and the pipe distributors are connected to the joints of the corresponding first slider and the corresponding second slider through multiple third pipes.

[0014] The automatic feeding high-precision beveling and pipe cutting machine is provided with an oil collection groove arranged along the front and rear direction of the bed below the first slide rail, and an oil outlet is provided at the rear end of the oil collection groove.

[0015] The automatic feeding high-precision beveling and pipe cutting machine includes a feeding frame comprising a hollow crossbeam and multiple vertical beams fixedly connected to the lower surface of the crossbeam. The lower surface of the crossbeam has an elongated hole extending along its length, and the upper surface of the crossbeam has a support bar extending along its length, which supports the feeding chain. A first slot is provided upstream of the crossbeam, containing an upward-facing U-shaped opening. A first connecting shaft passes through the feeding drive wheel. A first bearing seat is fixedly connected to the outer wall of the first U-shaped opening. The first connecting shaft is rotatably connected to the first bearing seat and is drively connected to the feeding drive mechanism. The feeding drive wheel is rotatably disposed in the first slot. A second slot is provided downstream of the crossbeam, containing an upward-facing second U-shaped opening. A feeding driven wheel is rotatably connected to a second connecting shaft via a second bearing and is rotatably disposed in the second slot.

[0016] The automatic feeding high-precision beveling pipe cutting machine has a top block below the first bearing seat. The top block is fixedly installed on the outer wall of the crossbeam. The top block has a top pull threaded hole extending vertically. A top rod is threadedly connected to the top pull threaded hole. The end of the top rod is used to abut against the lower surface of the first bearing seat.

[0017] Beneficial effects:

[0018] This invention provides an automatic feeding high-precision beveling and cutting machine for pipes. The machine uses a rotating feeding chain to feed pipes one by one from the feeding storage bay. A movable, front-to-back first baffle plate on the front chuck structure blocks most of the sparks generated during cutting and isolates the first slide rail from the laser processing area, preventing sparks from damaging the first slide rail and affecting its lifespan. A second baffle plate is added at the front of the machine bed, away from the laser cutting components, to further enhance the protection of the first slide rail in the laser processing area. This ensures the moving accuracy of the front chuck structure and the overall processing accuracy of the pipe cutting machine, extending the equipment's service life. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of an automatic feeding high-precision beveling and cutting pipe machine.

[0020] Figure 2 This is a schematic diagram of the structure of the first and second blocking plates.

[0021] Figure 3 This is a schematic diagram of the front chuck structure and the front drive mechanism.

[0022] Figure 4 Schematic diagram of the rear chuck structure and rear drive mechanism Figure 1 .

[0023] Figure 5 Schematic diagram of the rear chuck structure and rear drive mechanism Figure 2 .

[0024] Figure 6 This is a structural diagram of multiple feeding racks.

[0025] Figure 7 This is a schematic diagram of one of the feeding racks.

[0026] Figure 8 This is a partial structural diagram of the feeding rack.

[0027] Key component symbols: 1-Bed, 11-First slide rail, 12-First slider, 13-Second slide rail, 14-Second slider, 15-Drive rack, 2-Gantry, 21-Laser cutting assembly, 3-Front chuck structure, 31-Front side plate, 32-Front chuck, 33-Front rotary motor, 4-Front drive mechanism, 41-Front cross plate, 42-Front drive motor, 43-Front drive gear, 5-Rear chuck structure, 51-Rear side plate, 52-Rear chuck, 53-Rear rotary motor, 6-Rear drive mechanism, 61-Rear cross plate, 62-Rear drive motor, 63-Rear drive gear, 71-First blocking plate, 72-Second blocking plate, 721-Mounting part, 722-Inclined part, 723-Extension part, 81 82-Oil supply can, 83-Lubricating cotton wheel, 84-Pipe distributor, 85-Oil collection trough, 86-Oil outlet, 9-Feeding rack, 911-Crossbeam, 9111-Long hole, 9112-First slot, 9113-First U-shaped opening, 9114-Second slot, 9115-Second U-shaped opening, 912-Support bar, 913-Vertical beam, 921-Feeding drive wheel, 9211-First connecting shaft, 9212-First bearing seat, 9213-Top block, 9214-Top threaded hole, 922-Feeding driven wheel, 9221-Second connecting shaft, 923-Feeding chain, 924-Feeding limiting block, 93-Feeding drive mechanism; 10-Follow-up support mechanism, 20-Variable diameter wheel support mechanism. Detailed Implementation

[0028] This utility model provides an automatic feeding high-precision beveling and cutting pipe machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0029] Please see Figures 1-5This utility model provides an automatic feeding high-precision beveling and cutting pipe machine, including a bed 1, a gantry frame 2 fixedly mounted on the bed 1 and located at the front end of the bed 1, a laser cutting assembly 21 mounted on the gantry frame 2 and capable of reciprocating along the left-right and up-down directions of the gantry frame 2 and performing beveling and cutting of pipes, a front chuck structure 3 and a rear chuck structure 5 mounted on the bed 1, a front drive mechanism 4 for driving the front chuck structure 3 to reciprocate along the front-back direction of the bed 1, a rear drive mechanism 6 for driving the rear chuck structure 5 to reciprocate along the front-back direction of the bed 1, and multiple components fixedly mounted on the bed 1. The feed racks 9 are spaced apart and arranged on the upper part; the bed 1 is provided with a first slide rail 11 extending in the front-rear direction; the front chuck structure 3 and the rear chuck structure 5 are each provided with a first slider 12 that is slidably connected to the first slide rail 11; the front sidewall and the rear sidewall of the front chuck structure 3 are each provided with a first blocking plate 71, which is used to block the first slide rail 11 and the laser processing area located below the laser cutting assembly 21; a second blocking plate 72 that is fixedly connected to the sidewall of the bed 1 is also provided above the first slide rail 11 located in the laser processing area; please refer to Figures 6-8 The upstream and downstream of the feeding rack 9 are respectively provided with a rotatable feeding drive wheel 921 (sprocket) and a feeding driven wheel 922 (sprocket), and a feeding chain 923 is wound between the feeding drive wheel 921 and the feeding driven wheel 922. Multiple feeding limit blocks 924 are provided on the outer surface of the feeding chain 923, and a feeding storage slot is formed between two adjacent feeding limit blocks 924. The feeding drive wheel 921 is connected to the feeding drive mechanism 93 through a first connecting shaft 9211.

[0030] This high-precision beveling and pipe cutting machine can cut pipes with a diagonal of ≤240mm and a length of ≤6500mm. The pipe is fed and conveyed via the feeding rack 9. The feeding drive mechanism 93 is activated, transmitting power to the first connecting shaft 9211. The first connecting shaft 9211 drives the feeding drive wheel 921 to rotate. Since the feeding chain 923 is wound between the feeding drive wheel 921 and the feeding driven wheel 922, the rotation of the feeding drive wheel 921 will drive the feeding driven wheel 922 to rotate synchronously through the feeding chain 923, forming a closed-loop chain cycle motion. The feeding limiting block 924 on the outer side of the feeding chain 923 will limit the pipe through the feeding storage bay formed by the adjacent blocks, preventing the pipe from deviating or rolling off. As the feeding chain 923 cycles, the feeding limiting block 924 will drive the pipe in the feeding storage bay to move smoothly from upstream (feed end) to downstream (bed 1 end), completing the feeding action.

[0031] Specifically, a plurality of follow-up support mechanisms 10 fixedly connected to the bed 1 are provided at the rear of the gantry frame 2. In this embodiment, three follow-up support mechanisms 10 are arranged in the front and rear. When the tube is conveyed to the loading station by the feeding rack 9, the follow-up support mechanism 10 lifts the tube to be coaxial with the front chuck structure 3 and the rear chuck structure 5, and then clamps it by the front chuck structure 3 and the rear chuck structure 5. Moreover, the follow-up support mechanism 10 can provide follow-up support for the tube (i.e., it rises or falls at any time following the change of the diagonal of the non-circular tube), avoiding the middle of the long tube from falling due to gravity, thereby improving the processing accuracy. This follow-up support mechanism 10 is the prior art, mainly including a lifting plate, a cylinder set on the lifting plate, a motor for driving the lifting plate to rise or fall, and two clamping blocks connected to the output end of the cylinder. The extension or contraction of the cylinder output end drives the two clamping blocks to come closer to each other to clamp the tube.

[0032] In addition, a variable diameter wheel support mechanism 20, fixed to the bed 1, is provided between the front chuck structure 3 and the foremost follow-up support mechanism 10. When cutting pipes with a diameter ≤120mm, the variable diameter wheel support mechanism 20, in conjunction with the pipe support, works with the front chuck structure 3 and the rear chuck structure 5 to achieve fine machining of small-diameter pipes. The variable diameter wheel support mechanism 20 is existing technology and mainly includes a support wheel and a cylinder for driving the support wheel up or down.

[0033] The front chuck structure 3 and the rear chuck structure 5 clamp the tube synchronously. The rear chuck structure 5 continuously feeds the tube into the laser processing area. Once the tube is pushed into the laser processing area, the laser cutting assembly 21 processes and cuts the tube. The laser cutting assembly 21 can be driven by a motor to rotate the laser head on the assembly ±45°, thereby meeting the requirements for beveling the tube. In addition, the front chuck structure 3 can move in the front and rear directions of the laser cutting assembly 21, allowing the laser head to cut at positions before and after the front chuck, achieving zero-tail cutting of the tube and saving production material costs.

[0034] During the process of the front chuck structure 3 clamping the tube and reciprocating along the front-back direction of the bed 1, the first baffle plate 71 moves with the front chuck structure 3. The large-area first baffle plate 71 can block the first slide rail 11 from the laser processing area from the side, preventing sparks from splattering and wearing down the first slide rail 11, thus affecting its lifespan. In contrast, the second baffle plate 72 is farther away from the laser cutting assembly 21 and is less directly affected by sparks, so its area is smaller. Its main function is to block suspended or falling metal dust in the air, preventing dust from accumulating in the mating gap between the first slide rail 11 and the first slider 12. Furthermore, when the first blocking plate 71 moves with the front chuck structure 3 to the side of the second blocking plate 72, the two form an efficient and coordinated protection. The second blocking plate 72, fixed to the bed 1, forms a horizontal shield from above the first slide rail 11, while the first blocking plate 71, which moves with the front chuck structure 3, continuously protects the first slide rail 11 from the side. Together, they precisely enclose the first slide rail 11 in a relatively closed protective space. The above-mentioned dual protection structure can simultaneously isolate the high-temperature sparks and metal dust generated by laser cutting, prevent impurities from corroding the first slide rail 11 and the first slider 12, ensure their long-term stable sliding cooperation, and thus ensure the moving accuracy of the front chuck structure 3 and the overall processing accuracy of the pipe cutting machine, extending the service life of the equipment.

[0035] Specifically, an exhaust box is provided below the laser cutting assembly 21. The exhaust box is connected to an exhaust pipe, and the end of the exhaust pipe is connected to a negative pressure generator. When the negative pressure generator is started, a negative pressure environment is formed inside the exhaust box through the exhaust pipe. The dust generated by laser cutting is sucked into the exhaust box by the negative pressure and then transported to the outside of the pipe cutter through the exhaust pipe. This achieves centralized collection and discharge of dust, avoiding dust accumulation that contaminates equipment components (such as the first slide rail 11 and the first slider 12) or affects processing accuracy, while also improving the environmental hygiene of the equipment operation.

[0036] Please see Figure 2In some embodiments, the second baffle plate 72 includes a mounting portion 721 for fixed connection with the side wall of the bed 1, an inclined portion 722 integrally formed with the end of the mounting portion 721, and an extension portion 723 integrally formed with the end of the inclined portion 722; the inclined portion 722 is inclined from top to bottom, and the lower end of the extension portion 723 extends downward; the second baffle plate 72 is located between the bed 1 and the first baffle plate 71. The mounting part 721 serves as a connection base, ensuring that the second baffle plate 72 can be stably fixed to the side wall of the bed 1, providing support for the subsequent protective structure. The inclined part 722, which is set from top to bottom, can use the inclined angle to guide the dust and slag generated by laser cutting to slide down the inclined surface, avoiding them from accumulating directly above the first slide rail 11. At the same time, it can block the flying sparks to a certain extent, reducing the probability of sparks directly contacting the first slide rail 11. The downward-extending extension part 723 further expands the protection range, fills the protection gap below the inclined part 722, and effectively intercepts the dust that may drift from below the inclined part 722 to the first slide rail 11.

[0037] Please see Figures 2-5 In some embodiments, the upper surface of the bed 1 is provided with a second slide rail 13 extending in the front-rear direction, and both the front drive mechanism 4 and the rear drive mechanism 6 are provided with second sliders 14 that are slidably connected to the second slide rail 13; the first slide rail 11 is provided on the side wall of the bed 1 facing the operator; both the first slide rail 11 and the second slide rail 13 are located away from the laser cutting assembly 21. The fact that both the first slide rail 11 and the second slide rail 13 are located away from the laser cutting assembly 21 can minimize the direct erosion of the first slide rail 11 and the second slide rail 13 by sparks and dust generated during laser cutting, thus extending the service life of the guide rails; at the same time, the first slide rail 11 and the second slide rail 13 are located at different positions on the bed 1, providing stable movement guidance for the front chuck structure 3 and the rear chuck structure 5, ensuring the smoothness and coaxiality of their movement in the front-rear direction of the bed 1.

[0038] Please see Figure 2 and Figure 3 In some embodiments, the front chuck structure 3 includes a front mounting plate 31, a front chuck 32 disposed on the side wall of the front mounting plate 31 facing the operator, and a front rotary motor 33 for rotating the jaws of the front chuck 32; the first slider 12 is disposed on the side wall of the front mounting plate 31 facing the bed 1; please refer to Figure 4 and Figure 5The rear chuck structure 5 includes a rear side plate 51, a rear chuck 52 disposed on the side wall of the rear side plate 51 facing the operator, and a rear rotary motor 53 for driving the jaws of the rear chuck 52 to rotate; the first slider 12 is disposed on the side wall of the rear side plate 51 facing the bed 1. The front chuck structure 3 and the rear chuck structure 5 are generally identical in structure. The front side plate 31 is used to connect and adapt to the bed 1. The first slider 12 disposed on the side wall of the front side plate 31 allows it to slide along the first slide rail 11 of the bed 1. The front rotary motor 33 can drive the jaws of the front chuck 32 to rotate, which can both achieve stable clamping of the tube and drive the tube to rotate to cooperate with cutting. The rear chuck structure 5 is consistent with the principle of the front chuck structure 3. The two chuck structures cooperate and move along the first slide rail 11 to adjust the spacing under the drive mechanism. At the same time, the corresponding rotary motor drives the tube to rotate, providing a stable and adjustable tube processing state for the laser cutting assembly 21.

[0039] Please see Figure 3 In some embodiments, the front drive mechanism 4 includes a front cross plate 41 fixedly connected to the front side mounting plate 31, a front drive motor 42 disposed on the front cross plate 41, a front drive gear 43 pulsatorically connected to the output end of the front drive motor 42, and a drive rack 15 disposed along the front-rear direction of the bed 1; the front drive gear 43 and the drive rack 15 mesh; please refer to the figure. Figure 5 The rear drive mechanism 6 includes a rear cross plate 61 fixedly connected to the rear side mounting plate 51, a rear drive motor 62 mounted on the rear cross plate 61, and a rear drive gear 63 driven by the output end of the rear drive motor 62; the rear drive gear 63 meshes with the drive rack 15. The front drive mechanism 4 and the rear drive mechanism 6 have the same structural composition, making their driving principles consistent, which helps to simplify the complexity of the mechanism. When the corresponding drive motor starts, it drives the corresponding drive gear to rotate, and the corresponding drive gear meshes with the drive rack 15. The rotational motion of the corresponding drive gear is then converted into linear motion along the direction of the drive rack 15, thereby driving the corresponding side mounting plate and the chuck structure connected to it to move back and forth along the first slide rail 11. Moreover, the two drive mechanisms share a set of drive racks 15, making the structural composition of the drive mechanism simpler, and the coaxiality of the two chucks better.

[0040] Please see Figure 3 and Figure 5In some embodiments, the front chuck structure 3 and the rear chuck structure 5 are further provided with oil supply reservoirs 81, and the front cross plate 41 and the rear cross plate 61 are each provided with oil supply channels 82. The oil supply channels 82 are connected to the oil supply reservoirs 81 through a first pipe, and the oil supply channels 82 are provided with lubricating cotton wheels 83, which are used to provide lubricating oil to the drive rack 15. The oil supply reservoir 81 serves as a lubricating oil storage carrier and can store a sufficient amount of lubricating oil in advance. During oil supply, lubricating oil is continuously supplied to the oil supply channels 82 through the first pipe. The lubricating cotton wheels 83 utilize their porous structure to absorb lubricating oil. During the reciprocating movement of the corresponding chuck structure along the bed 1, the drive rack 15 is fully lubricated, achieving automatic lubrication. Real-time lubrication can be achieved when the equipment is started, keeping the equipment in optimal lubrication condition at all times. There is no need for manual addition of lubricating oil, reducing the frequency of manual operation, reducing the frequency of downtime, and improving production efficiency.

[0041] Please see Figure 3 and Figure 5 In some embodiments, both the front transverse plate 41 and the rear transverse plate 61 are equipped with pipe distributors 84. The pipe distributors 84 are connected to the oil supply reservoir 81 via second pipes, and are connected to the corresponding joints of the first slider 12 and the corresponding second slider 14 via multiple third pipes. During oil supply, the lubricating oil in the oil supply reservoir 81 is first transported to the pipe distributor 84 along the second pipe; the pipe distributor 84 serves to divert and centrally collect the oil. Subsequently, the lubricating oil is output through the third pipes via the pipe distributor 84 and transported to the first slider 12 and the second slider 14, providing continuous lubrication to the sliding mating surfaces of the first slider 12 and the second slider 14 with the first slide rail 11 and the second slide rail 13, reducing frictional losses between them. The oil supply system ensures the lubrication effect between the first slider 12 and the first slide rail 11, and between the second slider 14 and the second slide rail 13, maintaining the stability and accuracy of the movement of the front chuck structure 3 and the rear chuck structure 5, while also reducing the frequency of stopping to add lubricating oil, thus improving the overall processing efficiency of the equipment.

[0042] Please see Figure 1 and Figure 4In some embodiments, an oil collection groove 85 is provided below the first slide rail 11, arranged along the front-rear direction of the bed 1, and an oil outlet 86 is provided at the rear end of the oil collection groove 85. When the first slide rail 11 slides relative to the first slider 12 and the second slide rail 13 slides relative to the second slider 14, the lubricating oil on the first slide rail 11 and the second slide rail 13 will drip naturally due to gravity, and the oil collection groove 85 below can catch the dripping lubricating oil, preventing the lubricating oil from dripping randomly onto other parts of the bed 1 or the ground, avoiding contamination of the equipment and affecting the processing environment; at the same time, the collected lubricating oil can be centrally discharged or recycled through the oil outlet 86 at the rear end of the oil collection groove 85, which not only realizes the orderly management of lubricating oil, but also provides convenience for possible subsequent lubricating oil recycling.

[0043] Please see Figures 6-8In some embodiments, the feeding rack 9 includes a hollow crossbeam 911 and multiple vertical beams 913 fixed to the lower surface of the crossbeam 911; the lower surface of the crossbeam 911 has an elongated hole 9111 extending along its length, and the upper surface of the crossbeam 911 has a support bar 912 extending along its length, the support bar 912 being used to support the feeding chain 923; a first slot 9112 is provided upstream of the crossbeam 911, the first slot 9112 having an upward-facing first U-shaped opening 9113, the feeding drive wheel 921 being penetrated by a first connecting shaft 9211, the first U-shaped opening... A first bearing seat 9212 is fixedly connected to the outer wall of 9113. The first connecting shaft 9211 is rotatably connected to the first bearing seat 9212. The first connecting shaft 9211 is drively connected to the feeding drive mechanism 93. The feeding drive wheel 921 is rotatably disposed in the first slot 9112. A second slot 9114 is provided downstream of the crossbeam 911. A second U-shaped opening 9115 with an upward opening is provided in the second slot 9114. The feeding driven wheel 922 is rotatably connected to the second connecting shaft 9221 through a second bearing. The feeding driven wheel 922 is rotatably disposed in the second slot 9114. The elongated holes 9111 on the lower surface of the crossbeam 911 along its length provide a buffer space for the feeding chain 923 to sag. When the feeding chain 923 wears down due to long-term use, its tension decreases, or its initial tension is slightly insufficient, the feeding chain 923 will have a slight tendency to sag due to its own weight. At this time, the hollow structure of the elongated holes 9111 can directly avoid the sag of the chain, preventing the feeding chain 923 from contacting the inner wall of the crossbeam 911, thus fundamentally eliminating the risk of the feeding chain 923 sagring during movement. The friction between the feed chain 923 and the crossbeam 911 not only solves the noise problem but also reduces additional wear on the surface of the feed chain 923, extending its service life. At the same time, the support bar 912 on the upper surface of the crossbeam 911 and the elongated hole 9111 work together to support the feed chain 923 from above, reducing the downward amplitude of the feed chain 923, while the elongated hole 9111 provides clearance from below, catching any slight downward movement and improving the stability of the feed chain 923.

[0044] Furthermore, the first slot 9112 and the first U-shaped opening 9113 allow for pre-assembly followed by final assembly. Specifically, the feeding drive wheel 921, the first connecting shaft 9211, and the first bearing housing 9212 are pre-assembled, and then the pre-assembled assembly is directly placed into the first slot 9112 from above. Finally, the first bearing housing 9212 is fixedly connected to the outer wall of the first U-shaped opening 9113. This eliminates the need for dispersing and installing individual components, as well as complex calibration inside the crossbeam 911, significantly reducing assembly steps and time. Additionally, the second slot 9114 and the second U-shaped opening 9115 allow the feeding driven wheel 922 (pre-assembled with the second connecting shaft 9221 and the second bearing) to be similarly inserted into the second slot 9114 from above, further improving overall assembly efficiency and adapting to mass production needs.

[0045] Please see Figure 7 and Figure 8 In some embodiments, a top block 9213 is provided below the first bearing housing 9212. The top block 9213 is fixedly disposed on the outer side wall of the crossbeam 911. The top block 9213 has a vertically extending pull threaded hole 9214. A push rod (not shown in the figure) is threaded into the pull threaded hole 9214. The end of the push rod is used to abut against the lower surface of the first bearing housing 9212. When it is necessary to adjust the height of the first bearing housing 9212 or to support and fix it, rotating the push rod can move it up and down along the pull threaded hole 9214 until the end of the push rod abuts tightly against the lower surface of the first bearing housing 9212. The above-mentioned configuration can assist in calibrating the horizontal height of the first bearing housing 9212 during assembly, ensuring that the axes of the feeding drive wheel 921 and the feeding driven wheel 922 remain parallel, thus guaranteeing the smooth transmission of the feeding chain 923. It can also provide upward support for the first bearing housing 9212 during equipment operation, reducing the stress load on the first connecting shaft 9211 and the first bearing housing 9212, preventing the first bearing housing 9212 from shifting or loosening due to long-term operation, and further improving the stability and service life of the transmission system.

[0046] In summary, this invention uses the rotation of the feeding chain 923 to feed the pipes one by one into the feeding storage bay. By installing a first baffle 71, which moves with the front chuck structure 3 and is positioned front and rear, most of the sparks generated during cutting are blocked, and the first slide rail 11 is isolated from the laser processing area from the side, preventing sparks from splattering and damaging the first slide rail 11, thus affecting its lifespan. By adding a second baffle 72 at the front end of the bed 1, away from the laser cutting assembly 21, the protection of the first slide rail 11 in the laser processing area is further strengthened, thereby ensuring the moving accuracy of the front chuck structure 3 and the overall processing accuracy of the pipe cutting machine, extending the service life of the equipment.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. An automatic feeding high-precision beveling and cutting pipe machine, characterized in that, The device includes a bed, a gantry frame fixedly mounted on the bed and located at the front end of the bed, a laser cutting assembly mounted on the gantry frame and capable of reciprocating along the left-right and up-down directions to perform beveling cuts on pipes, a front chuck structure and a rear chuck structure mounted on the bed, a front drive mechanism for driving the front chuck structure to reciprocate along the front-back direction of the bed, a rear drive mechanism for driving the rear chuck structure to reciprocate along the front-back direction of the bed, and multiple feeding racks fixedly mounted on the bed and spaced apart; the bed is provided with a first slide rail extending along its front-back direction, and both the front chuck structure and the rear chuck structure are provided with a first slider that is slidably connected to the first slide rail. The front and rear sidewalls of the front chuck structure are each provided with a first blocking plate, which is used to block the first slide rail and the laser processing area located below the laser cutting assembly. A second blocking plate is also provided above the first slide rail located in the laser processing area and fixedly connected to the sidewall of the bed. The upstream and downstream of the feeding rack are respectively provided with a rotatable feeding drive wheel and a feeding driven wheel, as well as a feeding chain wound around the feeding drive wheel and the feeding driven wheel. Multiple feeding limit blocks are provided on the outer surface of the feeding chain, and a feeding storage slot is formed between two adjacent feeding limit blocks. The feeding drive wheel is connected to the feeding drive mechanism through a first connecting shaft.

2. The automatic feeding high-precision beveling and cutting pipe machine according to claim 1, characterized in that, The second baffle includes a mounting portion for fixed connection with the side wall of the bed, an inclined portion integrally formed with the end of the mounting portion, and an extension portion integrally formed with the end of the inclined portion; the inclined portion is inclined from top to bottom, and the lower end of the extension portion extends downward; the second baffle is located between the bed and the first baffle.

3. The automatic feeding high-precision beveling and cutting pipe machine according to claim 1, characterized in that, The upper surface of the bed is provided with a second slide rail extending in the front-rear direction. Both the front drive mechanism and the rear drive mechanism are provided with a second slider that is slidably connected to the second slide rail. The first slide rail is provided on the side wall of the bed facing the operator. Both the first slide rail and the second slide rail are located away from the laser cutting assembly.

4. The automatic feeding high-precision beveling and cutting pipe machine according to claim 3, characterized in that, The front chuck structure includes a front mounting plate, a front chuck disposed on the side wall of the front mounting plate facing the operator, and a front rotary motor for rotating the jaws of the front chuck; the first slider is disposed on the side wall of the front mounting plate facing the bed; the rear chuck structure includes a rear mounting plate, a rear chuck disposed on the side wall of the rear mounting plate facing the operator, and a rear rotary motor for rotating the jaws of the rear chuck; the first slider is disposed on the side wall of the rear mounting plate facing the bed.

5. The automatic feeding high-precision beveling and pipe cutting machine according to claim 4, characterized in that, The front drive mechanism includes a front cross plate fixedly connected to the front side plate, a front drive motor disposed on the front cross plate, a front drive gear driven through the output end of the front drive motor, and a drive rack disposed along the front-rear direction of the bed; the front drive gear and the drive rack mesh. The rear drive mechanism includes a rear cross plate fixedly connected to the rear side plate, a rear drive motor disposed on the rear cross plate, and a rear drive gear driven through the output end of the rear drive motor; the rear drive gear and the drive rack mesh.

6. The automatic feeding high-precision beveling and cutting pipe machine according to claim 5, characterized in that, The front chuck structure and the rear chuck structure are also provided with oil supply cans. Both the front cross plate and the rear cross plate are provided with oil supply channels. The oil supply channels are connected to the oil supply cans through the first pipe. The oil supply channels are provided with lubricating cotton wheels, which are used to provide lubricating oil to the drive rack.

7. The automatic feeding high-precision beveling and cutting pipe machine according to claim 6, characterized in that, Both the front and rear cross plates are equipped with pipe distributors. The pipe distributors are connected to the oil supply cans via second pipes, and the pipe distributors are connected to the joints of the corresponding first and second sliders via multiple third pipes.

8. The automatic feeding high-precision beveling and cutting pipe machine according to claim 7, characterized in that, Below the first slide rail is an oil collection groove arranged along the front-rear direction of the bed, and an oil outlet is provided at the rear end of the oil collection groove.

9. The automatic feeding high-precision beveling and cutting pipe machine according to claim 1, characterized in that, The feeding frame includes a hollow crossbeam and multiple vertical beams fixed to the lower surface of the crossbeam. The lower surface of the crossbeam has an elongated hole extending along its length, and the upper surface of the crossbeam has a support bar extending along its length, which supports the feeding chain. A first slot is provided upstream of the crossbeam, with an upward-facing first U-shaped opening. The feeding drive wheel is penetrated by a first connecting shaft. A first bearing seat is fixedly connected to the outer wall of the first U-shaped opening. The first connecting shaft is rotatably connected to the first bearing seat and is drively connected to the feeding drive mechanism. The feeding drive wheel is rotatably disposed in the first slot. A second slot is provided downstream of the crossbeam, with an upward-facing second U-shaped opening. The feeding driven wheel is rotatably connected to the second connecting shaft via a second bearing and is rotatably disposed in the second slot.

10. The automatic feeding high-precision beveling and cutting pipe machine according to claim 9, characterized in that, A top block is provided below the first bearing housing. The top block is fixedly installed on the outer side wall of the crossbeam. The top block has a top pull threaded hole extending vertically. A top rod is threadedly connected to the top pull threaded hole. The end of the top rod is used to abut against the lower surface of the first bearing housing.

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