A double-station laser pipe cutting machine

Abstract

The application discloses a double-station laser pipe cutting machine and belongs to the technical field of steel pipe cutting and processing. The double-station laser pipe cutting machine comprises a conveying base, a middle support plate is fixedly connected to the middle position of the inner side of the conveying base, a middle support device for supporting and positioning a pipe to be cut is arranged on the surface of the middle support plate, a touch switch for inductive starting is arranged at the middle position of any side of the conveying base, an elastic positioner for extruding and positioning the pipe to be cut is arranged on the side of the conveying base away from the touch switch, and a spiral conveyor for conveying the pipe to be cut is arranged on the middle position of the upper surface of the conveying base and the middle support plate. The double-station cutting and inductive starting can effectively improve the cutting efficiency and cutting precision.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe cutting and processing technology, specifically relating to a dual-station laser pipe cutting machine. Background Technology

[0002] Laser pipe cutting machines are high-precision CNC equipment designed specifically for pipes. They use a high-energy laser beam as the cutting tool and achieve cutting, hole opening, grooving, beveling, and processing of complex irregular contours through non-contact thermal processing. The laser beam output from the laser generator is transmitted and focused by a system to form an extremely small spot (with extremely high energy density), instantly melting / vaporizing the surface of the pipe. Assist gas (oxygen for combustion in carbon steel, nitrogen / argon for oxidation prevention in stainless steel / aluminum) blows away the slag. The CNC system drives the chuck to rotate and feeds the cutting head / pipe to form a continuous cut. Its accuracy is typically ±0.05~±0.1mm, with a smooth, burr-free cut surface that requires no secondary grinding.

[0003] In existing technologies, pipe cutting is mostly done in a single-station manner. This cutting method is inefficient. Some equipment requires manual loading of the pipe to a fixed length before starting the cutting machine to complete the pipe cutting, which makes the pipe cutting efficiency low. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic feeding and fixed-length pipe cutting device.

[0005] The technical solution adopted to solve the above technical problems is: a dual-station laser tube cutting machine, including a conveying base, a central support plate fixedly connected to the middle of the inner side of the conveying base, and a central support for supporting and positioning the tube to be cut is provided on the surface of the central support plate.

[0006] Through the above technical solution, the conveyor base can support and install the entire equipment, the middle support plate can install the middle support, and the middle support can position and support the middle position of the tube to be cut, ensuring the cutting accuracy and avoiding shaking or slippage during cutting that could affect the accuracy.

[0007] A touch switch for induction activation is provided at the middle position of any side of the conveying base. An elastic positioner for squeezing and positioning the tube to be cut is provided on the side of the conveying base away from the touch switch. A screw conveyor for conveying the tube to be cut is provided at the middle position of the upper surface of the conveying base and the middle support plate.

[0008] Through the above technical solutions, the touch switch can accurately sense and trigger the cutting program when the tube to be cut is delivered to the correct position, realizing the automatic start of the cutting process without manual intervention. The elastic positioner utilizes its elasticity to apply a stable squeezing force to the tube during delivery and cutting, ensuring the tube's stable position on the conveyor base and preventing axial or radial displacement. The screw conveyor, as the core component for conveying the tube to be cut, can smoothly and continuously transport the tube from one end of the conveyor base to the cutting position through the rotation of its screw structure. The conveying speed can be adjusted according to actual needs to match the rhythm of laser cutting, ensuring the continuity and efficiency of the cutting. The three components work together to form the basis for automated feeding and precise positioning of the equipment, effectively improving the automation level and processing efficiency of pipe cutting.

[0009] Furthermore, the conveying base and the middle support plate have an arc-shaped mounting groove at the center of their upper surfaces, and the screw conveyor is located within the mounting groove.

[0010] Through the above technical solution, the arc-shaped design of the mounting groove is adapted to the shape of the screw conveyor, which can provide a stable accommodating space for the screw conveyor. This allows the conveying surface of the screw conveyor to form a relatively flat support surface with the upper surface of the conveying base and the middle support plate, ensuring that the pipe to be cut remains horizontal during conveying. This avoids the pipe from bumping or getting stuck due to uneven conveying surface, further ensuring the stability and smoothness of the conveying.

[0011] Furthermore, the elastic positioner includes two symmetrically arranged fixed supports fixed to the middle of the side of the conveying base. The two fixed supports are rotatably connected to a swing arm for pressing the tube to be cut. A pressing wheel is rotatably connected to the end of the swing arm away from the fixed supports, and the pressing wheel is in rolling contact with the surface of the tube to be cut.

[0012] Through the above technical solution, the fixed support provides a stable installation foundation for the entire elastic positioner, ensuring that it will not shake or shift during operation. The two symmetrically arranged fixed supports can stably support the swing arm from both sides, allowing the swing arm to rotate flexibly around the fixed support. When the tube to be cut is transported to the positioning position, the swing arm, under the action of the tension spring, drives the pressure wheel to press tightly against the surface of the tube to be cut. The design of the rolling connection between the pressure wheel and the surface of the tube to be cut can not only ensure the effective pressing and positioning of the tube to be cut, but also reduce the friction between the tube and the tube to be cut by its own rolling when the tube to be cut moves slightly due to cutting or transportation, avoiding scratches on its surface. At the same time, it will not hinder the necessary adjustment of the tube to be cut within the allowable range, nor will it affect the normal transportation of the tube to be cut.

[0013] Furthermore, connecting hooks are fixedly connected to the lower surface of the fixed support and the lower surface of the swing arm, and a tension spring is fixedly connected between the two connecting hooks located on the same side.

[0014] Through the above technical solution, the connecting hook provides a reliable connection point for the tension spring, enabling the tension spring to be stably connected between the fixed support and the swing arm. When the tube to be cut enters the effective range of the elastic positioner, the tube will push up the pressure wheel, thereby driving the swing arm to rotate upward around the fixed support. At this time, the tension spring is stretched, generating a downward pulling force on the swing arm. This pulling force is transmitted to the pressure wheel through the swing arm, allowing the pressure wheel to continuously and elastically press the surface of the tube to be cut. The elastic characteristics of the tension spring give the clamping force a certain buffering capacity. When there is a slight difference in the diameter of the tube to be cut, the spring can adapt to this change through its own expansion and contraction, ensuring that the pressure wheel always contacts the tube to be cut with appropriate pressure. This avoids the problem of excessive clamping force damaging the tube due to changes in tube diameter or insufficient clamping force resulting in loss of positioning effect, thus ensuring the universality and positioning reliability of the elastic positioner when processing tubes of different specifications.

[0015] Furthermore, the central support includes two symmetrically arranged control grooves formed in the middle of the upper surface of the central support plate, and the two control grooves are located on both sides of the mounting groove. A control slider is slidably connected to the inner wall of the mounting groove, and a pressing roller is connected above the control slider via a mounting bracket.

[0016] Through the above technical solution, the control chute provides a precise guide track for the sliding of the control slider, ensuring that the control slider can only move horizontally along the direction of the chute. This guarantees the stability and positional accuracy of the extrusion roller when supporting the tube to be cut. Two control chutes symmetrically arranged on both sides of the mounting groove allow the extrusion rollers on both sides to support the tube to be cut from both sides, forming a symmetrical clamping force. This effectively prevents the tube to be cut from shifting laterally during the cutting process. The mounting bracket connects the control slider and the extrusion roller, transmitting the movement of the control slider to the extrusion roller. It also provides a stable mounting platform for the extrusion roller, ensuring that it can rotate flexibly. The extrusion roller directly contacts the outer wall of the tube to be cut. During the conveying or rotary cutting of the tube, it reduces friction with the tube through its own rolling, avoiding damage to the tube surface. It can also adapt to the slight displacement of the tube during processing, ensuring the continuity and stability of the support.

[0017] Furthermore, the extrusion roller is rotatably connected to the mounting frame, the mounting frame is fixedly connected to the surface of the control slider, the extrusion roller is extruded and positioned against the outer wall of the corresponding tube to be cut, and an extrusion spring is fixedly connected between the control slider and the inner wall of the control groove.

[0018] Through the above technical solution, the rotatable connection between the extrusion roller and the mounting frame allows the extrusion roller to roll flexibly on the outer wall of the pipe to be cut. When the pipe to be cut is axially conveyed under the drive of the screw conveyor or rotates during the cutting process, the rotation of the extrusion roller can transform the sliding friction between the two into rolling friction, greatly reducing frictional resistance. This not only protects the outer wall of the pipe from scratches but also reduces energy loss during conveying and rotation, ensuring smooth pipe conveying and stability during cutting. The fixed connection between the mounting frame and the control slider surface ensures that the relative position between the mounting frame and the control slider is fixed, allowing the sliding of the control slider in the control groove to be accurately transmitted to the mounting frame and the extrusion roller. This achieves stable support and positioning of the pipe to be cut by the extrusion roller. The extrusion roller's extrusion positioning against the corresponding outer wall of the pipe to be cut is the key to the middle support's support function. Through close contact with the outer wall of the pipe to be cut, it provides the pipe with... The radial support from both sides effectively resists the impact of the laser beam on the tube during the cutting process, as well as the vibration that the tube itself may generate. This prevents the tube from becoming eccentric or wobbling during cutting, ensuring the accuracy of the cutting trajectory. The compression spring, which is fixedly connected between the control slider and the inner wall of the control groove, provides elastic buffering and adaptive capability for this compression positioning. When the diameter of the tube to be cut fluctuates within a certain range, the compression spring can drive the control slider to slide accordingly within the control groove through its own compression or stretching, thereby adjusting the distance between the two compression rollers. This ensures that no matter how the tube diameter changes, the compression rollers can always contact the outer wall of the tube with appropriate pressure, achieving reliable elastic clamping. This design allows the central support to adapt to the support requirements of tubes of different specifications to be cut, enhancing the equipment's versatility and adaptability to changes in tube size. At the same time, the elastic force of the compression spring can also absorb some cutting vibration, further improving the stability of the cutting process.

[0019] Furthermore, a synchronous conveyor belt is provided at the corner between the inner wall of the conveying base near the touch switch and the inner wall of the middle support plate. A gantry frame body is fixedly installed on the conveying base. Two sliders are provided on the gantry frame body, and a laser cutting machine body is fixedly installed on the two sliders. A power output box is fixedly installed on the side of the conveying base away from the touch switch, and the output end of the power output box is fixedly connected to the screw conveyor.

[0020] Through the above technical solution, the synchronous conveyor belt is positioned at the corner between the inner wall of the conveyor base near the touch switch and the inner wall of the central support plate. This allows for the timely transport of the cut pipe from the cutting area after cutting, preventing the pipe from accumulating at the cutting position and affecting subsequent cutting operations. Its coordination with the screw conveyor forms a complete conveying process for the pipe from feeding, cutting to discharging, further improving the automation level and operational continuity of the equipment. The gantry frame, serving as the mounting and moving carrier for the laser cutting machine, provides stable support and precise movement guidance for the laser cutting head. Its fixed installation on the conveyor base ensures the laser cutting... The structural stability during the cutting process is ensured by two sliders on the gantry frame, which allow the laser cutting machine to move smoothly and precisely laterally or longitudinally along the gantry frame. This enables cutting at different positions on the tube to be cut, meeting the needs of various complex cutting trajectories. The power output box is fixedly installed on the side of the conveyor base away from the touch switch, and its output end is fixedly connected to the screw conveyor, providing a stable power source for the operation of the screw conveyor. By controlling the output power and speed of the power output box, the conveying speed of the screw conveyor can be precisely controlled, thereby adjusting the feed speed of the tube to be cut to match the speed of laser cutting, ensuring cutting quality and efficiency.

[0021] Furthermore, the touch switch includes a support main board fixedly connected to the middle of the side of the transmission base. The support main board is located on the side away from the elastic positioner. Two symmetrically arranged switch slots are opened on both sides of the upper surface of the support main board, and a through groove is opened through the middle of the upper surface of the support main board.

[0022] Through the above technical solution, the support motherboard provides a stable mounting carrier for the various components of the pressure switch. Its fixed connection with the middle of the side of the conveyor base ensures the positional stability of the pressure switch during equipment operation, avoiding displacement of the sensing position due to vibration and other factors. The support motherboard is located on the side away from the elastic positioner, so that when the tube to be cut is conveyed to the cutting position, its end can touch the pressure switch first, thereby triggering the cutting program in time and ensuring the timeliness and accuracy of sensing. Two symmetrically arranged switch slots are opened on both sides of the upper surface of the support motherboard, which can limit the sensing plate. The middle of the upper surface of the support motherboard, which has a through-slide groove, allows the sliding plate to slide in the through-slide groove, which can make more flexible adjustments to the cutting length of the tube to be cut. In conjunction with the sliding laser cutting machine body, it can improve the sensing accuracy.

[0023] Furthermore, a sensing plate is slidably connected to the upper surface of the support main board near the conveying base, and the sensing plate slides in a limiting manner with the switch slot. A support spring is fixedly connected between the protrusion on the lower surface of the sensing plate that limits the sliding with the switch slot and the inner wall of the switch slot. A sliding plate is slidably connected to the upper surface of the support main board away from the conveying base. A pressure switch is fixedly connected to the middle of the sliding plate near the sensing plate. A tightening bolt is fixedly connected to the lower surface of the pressure switch, and the tightening bolt slides through the corresponding through groove. A tightening nut is threadedly connected to the position of the tightening bolt.

[0024] Through the above technical solution, the sliding connection between the sensing plate and the upper surface of the support main board near the conveying base allows it to slide along the surface of the support main board under the push of the tube to be cut. The limiting sliding design between the sensing plate and the switch slot ensures that the sensing plate can only move in a straight line along the direction of the switch slot, avoiding deviation or shaking during the sliding process and ensuring the accuracy of sensing. The support spring fixedly connected between the lower surface of the sensing plate and the limiting sliding protrusion of the switch slot provides upward elastic support for the sensing plate. When the end of the tube to be cut has not yet contacted the sensing plate, the sensing plate is in the initial position under the action of the support spring. When the tube to be cut is conveyed to the end contacting the sensing plate and continues to be pushed, the sensing plate overcomes the elastic force of the support spring and slides downward until its lower surface triggers the pressure switch. The setting of the support spring not only plays a reset role, so that after the cutting is completed and the tube to be cut is removed, the sensing plate can automatically return to the initial position for the next sensing, but also avoids rigid collision between the tube to be cut and the sensing plate through its elastic characteristics, playing a buffer protection role.

[0025] The sliding plate is slidably connected to the side of the support main board away from the conveyor base. A pressure switch, fixedly connected to the center of the plate near the induction plate, is the core component for triggering the pressure switch. When the induction plate slides downwards under the pressure of the tube to be cut and contacts the pressure switch, applying pressure, the pressure switch is triggered, sending a signal to the equipment control system indicating that the tube has reached the predetermined cutting position. The control system then starts the laser cutting program. A tightening bolt fixedly connected to the lower surface of the pressure switch passes through the corresponding through-slot and is threadedly connected to a tightening nut. This structural design allows users to adjust the position of the sliding plate and pressure switch by loosening the tightening nut and sliding the tightening bolt along the through-slot according to the target cutting length of the tube. After adjustment, tightening the tightening nut fixes the sliding plate in a specific position on the support main board. This adjustable design allows the pressure switch to adapt to the cutting needs of tubes of different lengths, greatly enhancing the flexibility and applicability of the equipment. By precisely adjusting the position of the pressure switch, the length of the tube cut each time can be ensured to be accurate and consistent, improving the processing accuracy and consistency of the product.

[0026] Furthermore, an inclined guide plate is fixedly connected between the side of the supporting motherboard near the synchronous conveyor belt and the side of the conveyor base.

[0027] Through the above technical solution, the guide plate is inclinedly set between the side of the support main board near the synchronous conveyor belt and the side of the conveyor base. Its main function is to provide a smooth transition guide for the pipe after cutting. After the pipe to be cut is cut, under the residual pushing force of the screw conveyor or its own gravity, the cut pipe will move towards the touch switch side. At this time, the guide plate can receive the pipe that slides down from the support main board area. Using its inclination angle, it guides the pipe smoothly onto the synchronous conveyor belt, avoiding the pipe from falling directly and causing collision damage or jamming between the conveyor base and the synchronous conveyor belt. The inclination angle of the guide plate is optimized to ensure that the pipe can slide down smoothly without causing the pipe to bounce or shift position on the conveyor belt due to excessive inclination. This ensures that the cut pipe can enter the synchronous conveyor belt accurately and stably, further improving the smoothness and reliability of the entire equipment's discharge process.

[0028] The beneficial effects of the present invention are as follows: (1); (2); (3) (1) The dual-station design allows for simultaneous feeding, positioning, cutting, and unloading of two pipes to be cut, significantly improving the efficiency of pipe cutting. It is particularly suitable for batch production scenarios and can effectively shorten the processing cycle. (2) Equipped with a high-precision spiral conveyor and synchronous conveyor belt, combined with an optimized guide plate structure, the entire process of pipe feeding and unloading after cutting is automated, reducing manual intervention and labor intensity. At the same time, it ensures the stability and accuracy of pipe conveying and avoids the need for manual intervention. (3) By setting a touch switch, the pipe to be cut can be triggered when it is transported to the designated position without manual intervention, which improves the processing efficiency and cutting accuracy. The position of the sliding plate can be adjusted. When there is a slight error in the CNC size data, the CNC program can be adjusted directly at the touch switch position without modification. (4) The elastic positioner and the middle support of the present invention can effectively press and position the pipe to be cut. It will not deviate when the screw conveyor is transported, which effectively ensures the accuracy of transport and cutting. Attached Figure Description

[0029] Figure 1 This is a first-view structural diagram of a dual-station laser tube cutting machine according to the present invention; Figure 2 This is a second-view structural diagram of a dual-station laser tube cutting machine according to the present invention; Figure 3 This is an assembly view of the conveyor base of a dual-station laser tube cutting machine according to the present invention; Figure 4This is an assembly drawing of the middle support of a dual-station laser tube cutting machine according to the present invention; Figure 5 This is a first-view structural diagram of the touch switch of the feeding support structure of a dual-station laser tube cutting machine according to the present invention; Figure 6 This is a second-view structural diagram of the touch switch of the feeding support structure of a dual-station laser tube cutting machine according to the present invention; Figure 7 This is an exploded view of the elastic positioner of a dual-station laser tube cutting machine according to the present invention.

[0030] Reference numerals: 1. Conveyor base; 2. Gantry frame body; 3. Power output box; 4. Screw conveyor; 5. Elastic positioner; 50. Fixed support; 51. Tension spring; 52. Pressure roller; 53. Swing arm; 54. Connecting hook; 6. Central support plate; 7. Synchronous conveyor belt; 8. Touch switch; 80. Support main board; 81. Through groove; 82. Support spring; 83. Pressure switch; 84. Sliding plate; 85. Sensing plate; 86. Switch slot; 87. Tightening nut; 88. Tightening bolt; 9. Laser cutting machine body; 10. Tube to be cut; 11. Central support; 110. Control groove; 111. Control slider; 112. Mounting bracket; 113. Compression spring; 114. Compression roller; 12. Mounting groove; 13. Guide plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] like Figure 1-7 As shown, a dual-station laser tube cutting machine of this embodiment includes a conveying base 1. A central support plate 6 is fixedly connected to the middle of the inner side of the conveying base 1. A central support 11 for supporting and positioning the tube 10 to be cut is provided on the surface of the central support plate 6. The conveying base 1 can support and install the entire equipment. The central support plate 6 can install the central support 11. The central support 11 can position and support the middle of the tube 10 to be cut, ensuring the cutting accuracy and avoiding shaking or slippage during cutting that may affect the accuracy.

[0033] The central support 11 includes two symmetrically arranged control grooves 110 formed in the middle of the upper surface of the central support plate 6. The two control grooves 110 are located on both sides of the mounting groove 12. A control slider 111 is slidably connected to the inner wall of the mounting groove 12. An extrusion roller 114 is connected above the control slider 111 via a mounting bracket 112. The control grooves 110 provide a precise guide track for the sliding of the control slider 111, ensuring that the control slider 111 can only move horizontally along the direction of the groove. This ensures the stability and positional accuracy of the extrusion roller 114 when supporting the tube 10 to be cut. The two symmetrically arranged control grooves 110 on both sides of the mounting groove 12 allow the extrusion roller 114 on both sides to move horizontally. The 14 can support the tube 10 to be cut from both sides, forming a symmetrical clamping force, effectively preventing the tube 10 to be cut from shifting laterally during the cutting process. The mounting bracket 112 connects the control slider 111 and the extrusion roller 114, transmitting the movement of the control slider 111 to the extrusion roller 114, and providing a stable mounting platform for the extrusion roller 114, ensuring that it can rotate flexibly. The extrusion roller 114 directly contacts the outer wall of the tube 10 to be cut. When the tube 10 to be cut is conveyed or rotated for cutting, it reduces friction with the tube through its own rolling, avoiding damage to the surface of the tube. At the same time, it can also adapt to the small displacement of the tube during the processing, ensuring the continuity and stability of the support.

[0034] The extrusion roller 114 is rotatably connected to the mounting bracket 112, and the mounting bracket 112 is fixedly connected to the surface of the control slider 111. The extrusion roller 114 is extruded and positioned against the outer wall of the corresponding tube 10 to be cut. A compression spring 113 is fixedly connected between the control slider 111 and the inner wall of the control groove 110. The rotatable connection between the extrusion roller 114 and the mounting bracket 112 allows the extrusion roller 114 to roll flexibly on the outer wall of the tube 10 to be cut. When the tube 10 to be cut is axially conveyed under the drive of the screw conveyor 4 or rotates during the cutting process, the rotation of the extrusion roller 114 can convert the sliding friction between the two into... Rolling friction greatly reduces frictional resistance, protecting the outer wall of the tube 10 to be cut from scratches and reducing energy loss during transport and rotation. This ensures smooth tube transport and stability during cutting. The fixed connection between the mounting bracket 112 and the control slider 111 ensures a fixed relative position between them, allowing the sliding of the control slider 111 within the control groove 110 to be precisely transmitted to the mounting bracket 112 and the extrusion roller 114. This provides stable support and positioning for the extrusion roller 114 on the tube 10 to be cut. The extrusion roller 114 and its corresponding... The compression positioning of the outer wall of the tube 10 to be cut is key to the support function of the middle support 11. Through close contact with the outer wall of the tube 10, it provides radial support force from both sides, effectively resisting the impact of the laser beam on the tube during cutting and the vibration that the tube itself may generate. This prevents the tube from becoming eccentric or wobbling during cutting, ensuring the accuracy of the cutting trajectory. The compression spring 113, fixedly connected between the control slider 111 and the inner wall of the control groove 110, provides elastic buffering and adaptive capability for this compression positioning. When the diameter of the tube 10 to be cut fluctuates within a certain range... The compression spring 113 can drive the control slider 111 to slide accordingly within the control groove 110 through its own compression or stretching, thereby adjusting the distance between the two compression rollers 114. This ensures that no matter how the pipe diameter changes, the compression rollers 114 can always contact the outer wall of the pipe with appropriate pressure, achieving reliable elastic clamping. This design allows the middle support 11 to adapt to the support requirements of pipes 10 of different specifications to be cut, enhancing the versatility of the equipment and its adaptability to changes in pipe size. At the same time, the elastic force of the compression spring 113 can also absorb some cutting vibration, further improving the stability of the cutting process.

[0035] A touch switch 8 for induction start is provided at the center of either side of the conveying base 1. An elastic positioner 5 for squeezing and positioning the tube 10 to be cut is provided on the side of the conveying base 1 away from the touch switch 8. A screw conveyor 4 for conveying the tube 10 to be cut is provided at the center of the upper surface of the conveying base 1 and the central support plate 6. The touch switch 8 can accurately sense and trigger the cutting program when the tube 10 to be cut is conveyed into place, realizing the automatic start of the cutting process without manual intervention. The elastic positioner 5 uses its elastic properties to apply a stable pressure to the tube 10 throughout the conveying and cutting process. A certain amount of extrusion pressure is applied to ensure the stability of the pipe 10 to be cut on the conveying base 1, preventing axial or radial displacement. The screw conveyor 4, as the core component for conveying the pipe 10 to be cut, can smoothly and continuously transport the pipe 10 to be cut from one end of the conveying base 1 to the cutting position through the rotation of its screw structure. The conveying speed can be adjusted according to actual needs to match the rhythm of laser cutting, ensuring the continuity and efficiency of cutting. The three components work together to form the basis for automated feeding and precise positioning of the equipment, effectively improving the automation level and processing efficiency of pipe cutting.

[0036] The pressure switch 8 includes a support main board 80 fixedly connected to the center of the side of the transmission base 1. The support main board 80 is located away from the elastic positioner 5. Two symmetrically arranged switch slots 86 are formed on both sides of the upper surface of the support main board 80. A through groove 81 is formed through the center of the upper surface of the support main board 80. The support main board 80 provides a stable mounting carrier for the various components of the pressure switch 8. Its fixed connection to the center of the side of the transmission base 1 ensures the positional stability of the pressure switch 8 during equipment operation and avoids displacement of the sensing position due to vibration or other factors. The support main board 80 is located away from the elastic positioner 5. One side of the positioner 5 allows the end of the tube 10 to be cut to touch the touch switch 8 first when it is transported to the cutting position, thereby triggering the cutting program in time and ensuring the timeliness and accuracy of the sensing. Two symmetrically arranged switch slots 86 are opened on both sides of the upper surface of the support main board 80, which can limit the sensing plate 85. The middle position of the upper surface of the support main board 80, through which the through slide groove 81 is opened, allows the sliding plate 84 to slide in the through slide groove 81, which can make more flexible adjustment of the cutting length of the tube 10 to be cut. In conjunction with the sliding laser cutting machine body 9, the sensing accuracy can be improved.

[0037] A sensing plate 85 is slidably connected to the upper surface of the support mainboard 80 near the conveying base 1. The sensing plate 85 slides in a limited manner with the switch slot 86. A support spring 82 is fixedly connected between the protrusion on the lower surface of the sensing plate 85 that limits the sliding of the switch slot 86 and the inner wall of the switch slot 86. A sliding plate 84 is slidably connected to the upper surface of the support mainboard 80 away from the conveying base 1. A pressure switch 83 is fixedly connected to the middle of the sliding plate 84 near the sensing plate 85. A tightening bolt 88 is fixedly connected to the lower surface of the pressure switch 83. The tightening bolt 88 slides through the corresponding through groove 81. A tightening nut 87 is threadedly connected to the position of the tightening bolt 88. The sliding connection between the sensing plate 85 and the upper surface of the support mainboard 80 near the conveying base 1 allows it to slide along the surface of the support mainboard 80 under the push of the tube to be cut 10. The limited sliding design of the sensing plate 85 and the switch slot 86 ensures that the sensing plate 85 can only slide along the switch slot. The 86 moves in a straight line, preventing it from deviating or wobbling during sliding and ensuring the accuracy of the sensing. The support spring 82, which is fixedly connected between the lower surface of the sensing plate 85 and the protrusion limiting the sliding of the switch slot 86, provides an upward elastic support force for the sensing plate 85. When the end of the tube to be cut 10 has not yet contacted the sensing plate 85, the sensing plate 85 is in the initial position under the action of the support spring 82. When the tube to be cut 10 is conveyed to the end and contacts the sensing plate 85 and continues to be pushed, the sensing plate 85 overcomes the elastic force of the support spring 82 and slides downward until its lower surface triggers the pressure switch 83. The setting of the support spring 82 not only plays a reset role, so that after the cutting is completed and the tube to be cut 10 is removed, the sensing plate 85 can automatically return to the initial position for the next sensing, but also avoids rigid collision between the tube to be cut 10 and the sensing plate 85 through its elastic characteristics, playing a buffer protection role.

[0038] The sliding plate 84 is slidably connected to the upper surface of the supporting main plate 80 on the side away from the conveying base 1. A pressure switch 83 is fixedly connected to the middle of the side of the sliding plate 84 near the induction plate 85. This pressure switch 83 is the core component for triggering the signal. When the induction plate 85 slides downwards under the push of the tube to be cut 10 and contacts the pressure switch 83, applying a certain pressure, the pressure switch 83 is triggered, sending a signal to the equipment control system indicating that the tube to be cut 10 has reached the predetermined cutting position. The control system then starts the laser cutting program. The tightening bolt 88, fixedly connected to the lower surface of the pressure switch 83, passes through the corresponding through groove 81 and is threaded with the tightening nut 87. The connection structure allows users to adjust the position of the sliding plate 84 and pressure switch 83 by loosening the tightening nut 87 and sliding the tightening bolt 88 along the through groove 81 according to the target cutting length of the pipe 10 to be cut. After adjustment, tightening the tightening nut 87 will fix the sliding plate 84 in a specific position on the support main board 80. This adjustable design allows the pressure switch 8 to adapt to the cutting needs of pipes of different lengths and specifications, greatly enhancing the flexibility and applicability of the equipment. By precisely adjusting the position of the pressure switch 83, the pipe length cut each time can be ensured to be accurate and consistent, improving the processing accuracy and consistency of the product.

[0039] An inclined guide plate 13 is fixedly connected between the side of the supporting mainboard 80 near the synchronous conveyor belt 7 and the side of the conveyor base 1. The guide plate 13 is inclined between the side of the supporting mainboard 80 near the synchronous conveyor belt 7 and the side of the conveyor base 1. Its main function is to provide a smooth transition guide for the pipe after cutting. After the pipe 10 to be cut is cut, under the residual pushing force of the screw conveyor 4 or its own gravity, the cut pipe will move towards the touch switch 8. At this time, the guide plate 13 can receive the pipe from the area of ​​the supporting mainboard 80. The pipe that slides down the field is smoothly guided onto the synchronous conveyor belt 7 by utilizing its tilt angle. This avoids the pipe falling directly and causing collision damage or jamming between the conveyor base 1 and the synchronous conveyor belt 7. The tilt angle of the guide plate 13 is optimized to ensure that the pipe can slide down smoothly without causing the pipe to bounce or shift position on the conveyor belt due to excessive tilt. This ensures that the pipe can accurately and stably enter the conveying process of the synchronous conveyor belt 7 after cutting, further improving the smoothness and reliability of the entire equipment's discharge process.

[0040] The elastic positioner 5 includes two symmetrically arranged fixed supports 50 fixed to the middle of the side of the conveying base 1. A swing arm 53 for pressing the tube 10 to be cut is rotatably connected to each of the two fixed supports 50. A pressing wheel 52 is rotatably connected to the end of the swing arm 53 away from the fixed supports 50, and the pressing wheel 52 is in rolling contact with the surface of the tube 10 to be cut. The fixed supports 50 provide a stable mounting base for the entire elastic positioner 5, ensuring that it will not shake or shift during operation. The two symmetrically arranged fixed supports 50 can stably support the swing arm 53 from both sides, allowing the swing arm 53 to rotate around the fixed supports. The support 50 rotates flexibly. When the tube to be cut 10 is transported to the positioning position, the swing arm 53, under the action of the tension spring 51, drives the pressure wheel 52 to press tightly against the surface of the tube to be cut 10. The design of the pressure wheel 52 rolling connection with the surface of the tube to be cut 10 can not only ensure the effective pressing and positioning of the tube to be cut 10, but also reduce the friction between the tube to be cut 10 and the tube to be cut 10 through its own rolling when the tube to be cut 10 moves slightly due to cutting or transport, thus avoiding scratches on its surface. At the same time, it will not hinder the necessary adjustment of the tube to be cut 10 within the allowable range, nor will it affect the normal transport of the tube to be cut 10.

[0041] Connecting hooks 54 are fixedly connected to the lower surfaces of the fixed support 50 and the swing arm 53. A tension spring 51 is fixedly connected between two connecting hooks 54 on the same side. The connecting hooks 54 provide a reliable connection point for the tension spring 51, allowing the tension spring 51 to be stably connected between the fixed support 50 and the swing arm 53. When the tube to be cut 10 enters the range of action of the elastic positioner 5, the tube to be cut 10 will push up the pressure wheel 52, thereby driving the swing arm 53 to rotate upward around the fixed support 50. At this time, the tension spring 51 is stretched, generating a downward pulling force on the swing arm. 53. This tension is transmitted to the clamping wheel 52 through the swing arm 53, so that the clamping wheel 52 can continuously and elastically press the surface of the tube 10 to be cut. The elastic characteristics of the tension spring 51 make the clamping force have a certain buffering capacity. When there is a slight difference in the diameter of the tube 10 to be cut, the spring can adapt to this change through its own extension and contraction, ensuring that the clamping wheel 52 always contacts the tube 10 to be cut with appropriate pressure. This avoids the problem of excessive clamping force damaging the tube due to changes in tube diameter or insufficient clamping force losing the positioning effect. Thus, it ensures the universality and positioning reliability of the elastic positioner 5 when processing tubes of different specifications.

[0042] An arc-shaped mounting groove 12 is provided at the center of the upper surface of the conveying base 1 and the middle support plate 6. The screw conveyor 4 is located in the mounting groove 12. The arc-shaped design of the mounting groove 12 is adapted to the shape of the screw conveyor 4, which can provide a stable accommodating space for the screw conveyor 4. This allows the conveying surface of the screw conveyor 4 to form a relatively flat support surface with the upper surface of the conveying base 1 and the middle support plate 6, ensuring that the tube to be cut 10 always remains horizontal during conveying. This avoids the tube to be cut 10 from bumping or getting stuck due to uneven conveying surface, further ensuring the stability and smoothness of conveying.

[0043] A synchronous conveyor belt 7 is installed at the corner between the inner wall of the conveyor base 1 near the touch switch 8 and the inner wall of the central support plate 6. A gantry frame body 2 is fixedly installed on the conveyor base 1, with two sliders on the gantry frame body 2. A laser cutting machine body 9 is fixedly installed on the two sliders. A power output box 3 is fixedly installed on the side of the conveyor base 1 away from the touch switch 8, and the output end of the power output box 3 is fixedly connected to the screw conveyor 4. The synchronous conveyor belt 7, located at the corner between the inner wall of the conveyor base 1 near the touch switch 8 and the inner wall of the central support plate 6, can promptly transport the cut pipe from the cutting area after the pipe 10 is cut, preventing the cut pipe from accumulating at the cutting position and affecting subsequent cutting work. Its cooperation with the screw conveyor 4 forms a complete conveying process for the pipe from feeding, cutting to discharging, further improving the automation level and work continuity of the equipment. The gantry frame 2 serves as the mounting and moving carrier for the laser cutting machine body 9, providing stable support and precise movement guidance for the laser cutting head. It is fixedly mounted on the conveyor base 1, ensuring structural stability during the laser cutting process. Two sliders on the gantry frame 2 allow the laser cutting machine body 9 to move smoothly and precisely laterally or longitudinally along the gantry frame 2, enabling cutting of the tube 10 at different positions and meeting the needs of various complex cutting trajectories. The power output box 3 is fixedly mounted on the side of the conveyor base 1 away from the touch switch 8, and its output end is fixedly connected to the screw conveyor 4, providing a stable power source for the operation of the screw conveyor 4. By controlling the output power and speed of the power output box 3, the conveying speed of the screw conveyor 4 can be precisely controlled, thereby adjusting the feed speed of the tube 10 to be cut, matching it with the laser cutting speed, and ensuring cutting quality and efficiency.

[0044] The working principle of this embodiment is as follows: First, the tube 10 to be cut is placed on the screw conveyor 4. The power output box 3 is started and drives the screw conveyor 4 to rotate. The screw conveyor 4 smoothly transports the tube 10 to be cut from the side of the conveying base 1 away from the touch switch 8 to the cutting position through the rotation of its screw structure. During the transport process, the tube 10 to be cut is elastically clamped by the middle support 11. The extrusion roller 114 is always in contact with the outer wall of the tube under the action of the extrusion spring 113, providing stable support for the tube and preventing it from swaying radially during the transport process. Meanwhile, the clamping roller 52 in the elastic positioner 5, under the tension of the tension spring 51, presses tightly against the surface of the tube 10 to be cut from above. This, combined with the central support 11, provides elastic clamping of the tube 10 from both above and below, ensuring its stable position during axial transport and preventing axial displacement. When the tube 10 is transported to the point where its end contacts the sensing plate 85 of the pressure switch 8, it continues to push the sensing plate 85 downwards along the switch groove 86, overcoming the elastic force of the support spring 82, until the lower surface of the sensing plate 85 triggers the pressure switch 83. Once triggered, the pressure switch 83 sends a signal to the equipment control system, starting the laser cutting machine body 9. At this point, the tube 10 spins freely and cannot move. Driven by the slider of the gantry frame body 2, the laser cutting machine body 9 precisely cuts the tube 10 according to the preset cutting program. During the cutting process, the elastic force of the compression spring 113 and the tension spring 51 absorbs some of the cutting vibration, ensuring cutting stability. After cutting is completed, the control system controls the laser cutting machine body 9 to reset, and at the same time, the power output box 3 restarts, driving the screw conveyor 4 to continue conveying the pipe to be cut 10, pushing the cut pipe towards the touch switch 8. Under the pushing force of the screw conveyor 4, the cut pipe smoothly transitions to the synchronous conveyor belt 7 via the guide plate 13, and is then conveyed to the subsequent process by the synchronous conveyor belt 7. Meanwhile, the uncut portion of the pipe to be cut 10 continues to be conveyed to the cutting position, repeating the above cutting process to achieve continuous automated pipe cutting operation.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A dual-station laser tube cutting machine, comprising a conveyor base (1), characterized in that: A central support plate (6) is fixedly connected to the middle of the inner side of the conveying base (1), and a central support (11) for supporting and positioning the tube (10) to be cut is provided on the surface of the central support plate (6). A touch switch (8) for induction start is provided at the middle position of any side of the conveying base (1). An elastic positioner (5) for squeezing and positioning the tube to be cut (10) is provided on the side of the conveying base (1) away from the touch switch (8). A screw conveyor (4) for conveying the tube to be cut (10) is provided at the middle position of the upper surface of the conveying base (1) and the middle support plate (6).

2. The dual-station laser tube cutting machine according to claim 1, characterized in that, The conveying base (1) and the middle support plate (6) have an arc-shaped mounting groove (12) at the middle position of their upper surfaces, and the screw conveyor (4) is located in the mounting groove (12).

3. The dual-station laser tube cutting machine according to claim 1, characterized in that, The elastic positioner (5) includes two symmetrically arranged fixed supports (50) fixed in the middle of the side of the conveying base (1). The two fixed supports (50) are rotatably connected to a swing arm (53) for pressing the tube (10) to be cut. The swing arm (53) is rotatably connected to a pressing wheel (52) at the end away from the fixed support (50), and the pressing wheel (52) is in rolling contact with the surface of the tube (10) to be cut.

4. A dual-station laser tube cutting machine according to claim 3, characterized in that, The lower surface of the fixed support (50) and the lower surface of the swing arm (53) are both fixedly connected with connecting hooks (54), and a tension spring (51) is fixedly connected between the two connecting hooks (54) on the same side.

5. A dual-station laser tube cutting machine according to claim 1, characterized in that, The central support (11) includes two symmetrically arranged control slides (110) on the middle of the upper surface of the central support plate (6), and the two control slides (110) are located on both sides of the mounting groove (12). The inner wall of the mounting groove (12) is slidably connected to a control slider (111), and a pressing roller (114) is connected above the control slider (111) through the mounting bracket (112).

6. A dual-station laser tube cutting machine according to claim 5, characterized in that, The extrusion roller (114) is rotatably connected to the mounting bracket (112), the mounting bracket (112) is fixedly connected to the surface of the control slider (111), the extrusion roller (114) is extruded and positioned against the outer wall of the corresponding tube to be cut (10), and an extrusion spring (113) is fixedly connected between the control slider (111) and the inner wall of the control groove (110).

7. A dual-station laser tube cutting machine according to claim 1, characterized in that, A synchronous conveyor belt (7) is provided at the corner between the inner wall of the conveying base (1) near the touch switch (8) and the inner wall of the middle support plate (6). A gantry frame body (2) is fixedly installed on the conveying base (1). Two sliders are provided on the gantry frame body (2), and a laser cutting machine body (9) is fixedly installed on the two sliders. A power output box (3) is fixedly installed on the side of the conveying base (1) away from the touch switch (8), and the output end of the power output box (3) is fixedly connected to the screw conveyor (4).

8. A dual-station laser tube cutting machine according to claim 1, characterized in that: The touch switch (8) includes a support main board (80) fixedly connected to the middle of the side of the transmission base (1). The support main board (80) is located on the side away from the elastic positioner (5). Two symmetrically arranged switch slots (86) are opened on both sides of the upper surface of the support main board (80). A through groove (81) is opened through the middle of the upper surface of the support main board (80).

9. A dual-station laser tube cutting machine according to claim 8, characterized in that, A sensing plate (85) is slidably connected to the upper surface of the support main board (80) near the transmission base (1), and the sensing plate (85) slides in a limiting position with the switch slot (86). A supporting spring (82) is fixedly connected between the protrusion on the lower surface of the sensing plate (85) that limits the sliding with the switch slot (86) and the inner wall of the switch slot (86). A sliding plate (84) is slidably connected to the upper surface of the support main board (80) away from the transmission base (1). A pressure switch (83) is fixedly connected to the middle position of the sliding plate (84) near the sensing plate (85). A tightening bolt (88) is fixedly connected to the lower surface of the pressure switch (83), and the tightening bolt (88) slides through the corresponding through groove (81). A tightening nut (87) is threadedly connected to the position of the tightening bolt (88).

10. A dual-station laser tube cutting machine according to claim 9, characterized in that, An inclined guide plate (13) is fixedly connected between the side of the supporting main board (80) near the synchronous conveyor belt (7) and the side of the conveyor base (1).

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