A fixed-length cutting device for glass tube processing based on laser cutting

Abstract

This invention relates to the field of cutting equipment technology and discloses a fixed-length cutting device for glass tube processing based on laser cutting. A laser is bolted to one side of the worktable, and a positioning component is provided on one side of the upper end of the worktable. A hydraulic rod and a driving component are fixedly installed inside the worktable, and a fixed-length component is provided at one end of the hydraulic rod. The fixed-length component includes a collar rotatably connected to the hydraulic rod. Multiple sets of conveying mechanisms are symmetrically arranged on the inner wall of the collar, and a cleaning component is provided on one side of the collar. The conveying mechanism includes an elastic element connected to the inner wall of the collar. A roller is sleeved in the middle of the outer wall of the elastic element, and clamping components are provided on both sides of the outer wall of the elastic element. This realizes fully automated batch processing of fixed-length feeding, rotary cutting, resetting cleaning, and fixed-length feeding, reducing manual intervention.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and in particular to a fixed-length cutting device for glass tube processing based on laser cutting. Background Technology

[0002] A laser cutting device focuses a laser emitted from a laser source into a high-power-density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. As the beam moves along the horizontal, vertical, and longitudinal axes, a kerf is eventually formed in the material, thus achieving the purpose of cutting.

[0003] Due to its high precision and non-contact processing characteristics, laser cutting technology is widely used in the batch length cutting of pipe fittings (such as medical catheters, optical glass tubes, laboratory glassware, etc.).

[0004] For example, Chinese Patent CN215880371U discloses a glass tube laser cutting device. In use, the glass tube is first placed on a mounting plate. The first motor is started, and its output shaft drives the rotation of a rotating shaft. This rotating shaft drives two first sprockets, which in turn drive the chain and second sprockets. The two second sprockets then drive the synchronous rotation of two first lead screws. Guided by a guide rod, the two first lead screws move two moving plates closer together, which in turn move two clamping plates closer together, thus fixing the glass tube. Then, the second motor and laser are started. The output shaft of the second motor drives the rotation of the second lead screw. Guided by a crossbar, the second lead screw moves the mounting plate and laser smoothly and slowly to the left or right, thus performing overall laser cutting of the glass tube for better cutting results.

[0005] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: On the one hand, during use, it is not possible to automatically perform batch fixed-length cutting of pipe fittings, resulting in a significant reduction in production efficiency. Manual operation requires frequent measurement and cutting, which is time-consuming and labor-intensive.

[0006] On the other hand, cutting precision is difficult to guarantee, which can easily lead to dimensional errors, affecting product quality and subsequent assembly; labor costs increase significantly, requiring more operators; production flexibility is poor, making it difficult to quickly respond to diverse order demands; in addition, non-standard manual operation may cause safety hazards, and intelligent management and data tracking of the production process cannot be achieved, which is not conducive to the company's competitiveness and long-term development. Summary of the Invention

[0007] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of not being able to perform automated batch fixed-length cutting of pipe fittings. To this end, we propose a fixed-length cutting device for glass tube processing based on laser cutting.

[0008] To achieve the above objectives, this application adopts the following technical solution: a fixed-length cutting device for glass tube processing based on laser cutting, including a worktable, a laser is bolted to one side of the worktable, a positioning component is provided on the upper side of the worktable, a hydraulic rod and a driving component are fixedly installed inside the worktable, and a fixed-length component is provided at one end of the hydraulic rod.

[0009] The fixed-length assembly includes a collar that is rotatably connected to a hydraulic rod. Multiple sets of conveying mechanisms are symmetrically arranged on the inner wall of the collar, and a cleaning component is provided on one side of the collar.

[0010] The conveying mechanism includes an elastic element connected to the inner wall of the collar. A roller is fitted onto the middle of the outer wall of the elastic element, and clamps are provided on both sides of the outer wall. First, a hydraulic rod drives the entire length-fixing assembly to move horizontally, ensuring the distance between the assembly and the positioning element is greater than the desired pipe length. Then, one end of the pipe passes through the middle of the length-fixing assembly and abuts against the positioning element. The elastic element automatically extends and retracts according to the pipe diameter, causing the roller to conform to the outer wall of the pipe. Whether it's a small-diameter capillary tube or a large-diameter glass tube, the buffering effect of the elastic element ensures clamping force while preventing pipe breakage due to rigid compression, thus broadening the applicability of the device. Because multiple conveying mechanisms simultaneously clamp the pipe fitting from multiple directions, forming a stable circumferential support, even if the pipe fitting cross-section is not perfectly circular, the synergistic effect of multiple elastic elements ensures uniform force during clamping, preventing pipe fitting deviation from affecting cutting accuracy. Subsequently, the hydraulic rod drives the length-fixing assembly to gradually approach the positioning piece, precisely controlling the pipe fitting cutting length. During the process, due to the restraint of the clamping piece, the roller cannot rotate, thus generating significant friction with the pipe fitting. This causes the portion of the pipe fitting to be cut to pass through the positioning piece, preventing slippage and length deviation, ensuring consistent cutting length for each section of the pipe fitting, until the collar and... The drive unit engages and stops, at which point it drives the fixed-length assembly to rotate at a constant speed. Simultaneously, the laser begins laser cutting the tube, ensuring the tube maintains circular motion during laser cutting. The laser continuously illuminates the same position, creating a continuous and uniform cutting line. Compared to traditional fixed cutting, rotary cutting avoids glass breakage caused by concentrated laser energy, resulting in a smoother cut and reducing subsequent grinding processes. After cutting, the drive unit stops and, via a hydraulic rod, gradually moves the fixed-length assembly away from the positioning element to the desired tube length. During this process, the tube is constrained by the positioning element, and the rollers can rotate. Therefore, the position of the pipe will not change. Then the hydraulic rod will drive the length-fixing component to gradually approach the positioning component again. This process is repeated without manual intervention. This cycle mechanism can achieve mass production. Combined with the high-speed characteristics of laser cutting, it can greatly improve processing efficiency and is suitable for continuous industrial operation. As the length-fixing component moves away from the positioning component, the roller will continuously squeeze the gas in the clamp, so that the gas is eventually discharged from the cleaning component to form a pulse airflow, which blows away the impurities and dust adsorbed on the surface of the pipe. At the same time, the negative pressure effect generated at the moment of air replenishment can suck up residual impurities, avoid affecting the subsequent cutting accuracy, and ensure the clean cutting surface.

[0011] Preferably, the elastic element includes a telescopic rod fixedly connected to the inner wall of the collar. A support rod is fixedly installed at the end of the telescopic rod away from the collar. A spring is sleeved on the outer side of the telescopic rod. The two ends of the spring are fixedly connected to the inner wall of the collar and the support rod, respectively. A shaft is fixedly installed on the inner wall of the support rod. A roller is rotated and sleeved on the middle of the outer side of the shaft. When the pipe passes through the fixed-length assembly, the outer wall of the pipe squeezes the roller, pushing the support rod to squeeze the spring, and then moves towards the inner wall of the collar. Utilizing the elastic restoring potential energy of the spring, the roller is pressed tightly against the outer wall of the pipe, forming an elastic clamping force. This clamping force is automatically adjusted according to the diameter of the pipe. The larger the pipe diameter, the greater the compression of the spring and the greater the clamping force, ensuring that pipes of different diameters can be stably clamped. Furthermore, since multiple sets of elastic elements are symmetrically arranged on the inner wall of the collar, the independent deformation capability of each set of springs allows the roller to adhere to the surface of the pipe from different directions. Even if the pipe has ellipticity errors or local unevenness, the synergistic effect of multiple sets of elastic elements can ensure uniform force during clamping and prevent pipe displacement.

[0012] Preferably, ratchet 1 is fixedly installed on both sides of the roller. The locking component includes a connecting ring fixedly connected to the shaft. Multiple springs 2 are fixedly installed on one side of the connecting ring. A ratchet 2 is fixedly installed at the end of the spring 2 away from the connecting ring. The ratchet 2 abuts against the ratchet 1. Through the pushing force of the spring 2, the ratchet 2 and ratchet 1 exhibit a one-way meshing characteristic, so that the roller is locked and cannot rotate during the feeding process, thereby generating a large frictional force between it and the pipe, thus driving the pipe to move synchronously towards the positioning component to achieve fixed-length feeding. During the reset process, because the rotation direction of the roller changes, the ratchet 2 allows the ratchet 1 to rotate. At this time, the roller can be unlocked and rotated, effectively reducing the frictional force between it and the pipe. At the same time, in conjunction with the positioning component to limit the pipe, it avoids reverse pulling and interference with the already positioned pipe, realizing the automated cycle of pushing to reset.

[0013] Preferably, multiple arc-shaped cavity plates are fixedly installed on the side of the connecting ring near the second ratchet, and multiple arc-shaped plates are fixedly installed on the side of the second ratchet near the connecting ring. The arc-shaped cavity plates are sleeved on the outside of the arc-shaped plates and slidably connected. The cleaning component includes a cavity ring fixedly connected to the collar, and multiple metal hoses fixedly installed on the outer wall of the cavity ring and fixedly connected to the support rod. A bevel is opened on one side of the cavity ring, and a one-way valve is fixedly installed on the inner side of the bevel. The arc-shaped cavity plates are connected to the connecting ring, the connecting ring is connected to the shaft, the shaft is connected to the support rod, and the support rod is connected to the metal hoses. The metal hose is connected to the cavity ring. When the fixed-length assembly moves away from the positioning part, the roller is rotating, causing the ratchet two to move back and forth under the push of the ratchet one and the reset push of the spring two. This causes the arc plate to continuously compress the gas in the arc cavity plate, so that the gas passes through the connecting ring, shaft, support rod, and metal hose in sequence, and finally is ejected at high speed from the one-way valve on the inner side of the inclined surface of the cavity ring. This forms a pulse airflow to clean the outer wall of the pipe fitting, which can blow away the dust and impurities on the surface of the pipe fitting, thus avoiding affecting the subsequent cutting accuracy and pipe fitting quality.

[0014] Preferably, the other side of the cavity ring also has an inclined surface and a one-way valve is fixedly installed on the inner side. Multiple one-way valves are arranged in a circle around the cavity ring as the axis. When the ratchet is reset, a negative pressure is generated in the cavity ring, which then draws in the opposite direction through the one-way valve on the other inclined surface, forming a bidirectional pulse cleaning. The bidirectional inclined surface and the circumferentially arranged one-way valves ensure that the airflow is evenly sprayed to the entire circumference of the outer wall of the pipe, avoiding cleaning blind spots and improving cleaning efficiency. Regardless of whether the fixed-length component moves forward or backward, it can effectively spray or suck air through the control of the one-way valve, ensuring that the cleaning process is synchronized with the cutting action and does not depend on the direction of movement.

[0015] Preferably, a fixing block is welded to one end of the hydraulic rod, and the fixing block is rotatably connected to the collar. A planetary gear is bolted to one side of the collar. The driving component includes a servo motor bolted to the worktable. A gear is bolted to the drive end of the servo motor. The hydraulic rod drives the fixing block to push the collar to move horizontally until the planetary gear on one side of the collar meshes with the gear. At this time, the hydraulic rod stops pushing, the servo motor starts, drives the gear to rotate, and then drives the planetary gear to drive the entire fixed-length component to rotate at a uniform speed. The roller clamps the tube and rotates synchronously, so that the laser performs ring cutting on the rotating tube. After the cutting is completed, the servo motor stops, the hydraulic rod retracts, and the collar moves away from the positioning component to prepare for the next cutting cycle, thereby realizing automated batch fixed-length cutting processing.

[0016] Preferably, the positioning component includes a support plate bolted to the workbench. Multiple valves arranged in a circular pattern are fixedly installed on the inner side of the support plate. When the tube passes through the valves, the valves will bend and deform, causing a huge frictional force to be generated between the tube and the outer wall of the tube during the overall resetting process of the fixed-length assembly, thus preventing the tube from moving. When the tube rotates and is transported, the frictional force is small, so it does not affect the normal rotation and transport of the tube.

[0017] Preferably, the outer wall of the roller is fitted with a rubber layer. The circumferential surface of the rubber layer is a concave arc surface and has anti-slip grooves. When the roller contacts the pipe, the rubber layer is deformed under pressure, increasing the contact area. Combined with the anti-slip grooves, the friction coefficient can be effectively improved. The elastic design of the concave arc surface allows the roller to adapt to pipe diameter changes within a certain range. When the pipe diameter is smaller than the standard arc radius, the rubber layer wraps the pipe with greater elastic deformation, and vice versa, thus maintaining effective contact at all times.

[0018] Preferably, a scale is fixedly installed on the upper part of the worktable to facilitate personnel to observe whether normal fixed-length laser cutting processing is being carried out and to react in a timely manner.

[0019] Preferably, a balancing component is provided on the other side of the upper end of the worktable. The balancing component includes a second collar that is rotatably connected to the worktable. The inner side of the second collar is also provided with an elastic component and a roller, so that even if the remaining part of the pipe is long after being cut, it will not tilt up, thereby ensuring the normal cutting of the entire device.

[0020] The technical effects and advantages of this invention are as follows: the hydraulic rod and the driving component work together, combined with the one-way locking function of the ratchet mechanism, to achieve millimeter-level fixed length accuracy; the planetary gear transmission ensures smooth rotation of the collar, and works with the laser to complete high-quality circumferential cutting with a smooth cut, reducing the need for grinding.

[0021] The flexible clamping structure of the elastic element can adapt to pipe fittings of different diameters, avoiding crushing damage. During the cutting process, the rubber layer and anti-slip groove design of the roller enhance friction and protect the pipe surface. At the same time, the cleaning element and the clamping element work together to generate pulse jet and suction effects through mechanical motion, automatically removing surface impurities and dust, improving cutting quality.

[0022] The device achieves feeding, cutting, resetting, cleaning, and material feeding through hydraulic drive and mechanical transmission. The entire process is automated, reducing manual intervention. The modular structure facilitates maintenance, and the core components are highly wear-resistant, making it suitable for continuous industrial production and significantly improving processing efficiency and equipment lifespan.

[0023] In this invention, a hydraulic rod drives a fixed-length component to move, a positioning component calibrates the cutting length, a ratchet mechanism enables the roller to rotate in one direction, and pushes the pipe to feed precisely. During cutting, the roller is locked to ensure stable position, and unlocked during reset to reduce friction.

[0024] In this invention, a servo motor drives a collar to rotate via a planetary gear, causing the pipe to rotate at a constant speed in conjunction with laser cutting. The clamp moves and compresses the gas, which is discharged and drawn in through a one-way valve on the cleaning component via a channel, forming pulse jetting and suction to remove surface impurities in real time.

[0025] In this invention, the elastic element drives the roller to adaptively clamp pipe fittings of different diameters through the extension and retraction of the spring. The concave arc surface and anti-slip groove of the roller's rubber layer increase the friction and protect the surface of the pipe fitting from scratches. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the worktable and positioning components of the present invention;

[0029] Figure 4 This is a schematic diagram of the fixed-length component structure of the present invention;

[0030] Figure 5 This is an exploded view of the fixed-length component and cleaning part structure of the present invention;

[0031] Figure 6 This is an exploded view of the conveying mechanism structure of the present invention;

[0032] Figure 7 This is an exploded view of the card structure of the present invention.

[0033] Legend: 1. Workbench; 11. Drive component; 111. Servo motor; 112. Gear; 12. Hydraulic rod; 121. Fixing block; 13. Scale; 2. Laser; 3. Balancing component; 31. Collar II; 4. Length-fixing assembly; 41. Collar; 411. Planetary gear; 42. Conveying mechanism; 421. Elastic component; 4211. Telescopic rod; 4212. Support rod; 4213. Spring I; 4214. Shaft; 422. Roller; 4221. Ratchet 1; 4222. Rubber layer; 4223. Anti-slip groove; 423. Clip; 4231. Connecting ring; 4232. Arc-shaped cavity plate; 4233. Ratchet 2; 4234. Spring 2; 4235. Arc-shaped plate; 43. Cleaning component; 431. Metal hose; 432. Cavity ring; 4321. Inclined surface; 4322. One-way valve; 5. Positioning component; 51. Support plate; 52. Valve. Detailed Implementation

[0034] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0035] Reference Figures 1-5 As shown, the present invention provides a technical solution: a fixed-length cutting device for glass tube processing based on laser cutting, including a worktable 1, a laser 2 bolted on one side of the worktable 1, a positioning component 5 provided on the upper side of the worktable 1, a hydraulic rod 12 and a driving component 11 fixedly installed inside the worktable 1, and a fixed-length component 4 provided at one end of the hydraulic rod 12.

[0036] The fixed-length assembly 4 includes a collar 41 that is rotatably connected to the hydraulic rod 12. Multiple sets of conveying mechanisms 42 are symmetrically arranged on the inner wall of the collar 41, and a cleaning component 43 is provided on one side of the collar 41.

[0037] The conveying mechanism 42 includes an elastic element 421 connected to the inner wall of the collar 41. A roller 422 is sleeved in the middle of the outer wall of the elastic element 421. Clamping elements 423 are provided on both sides of the outer wall of the elastic element 421. First, the hydraulic rod 12 drives the length-fixing assembly 4 to move horizontally as a whole, so that the distance between the length-fixing assembly 4 and the positioning element 5 is greater than the desired pipe length. Then, one end of the pipe passes through the middle of the length-fixing assembly 4 and abuts against the positioning element 5. The elastic element 421 can automatically extend and retract according to the pipe diameter, driving the roller 422 to fit against the outer wall of the pipe. Whether it is a small-diameter capillary tube or a large-diameter glass tube, the buffering effect of the elastic element 421 can ensure the clamping force and avoid the pipe breakage caused by rigid compression. This design broadens the applicability of the device. Simultaneously, multiple conveying mechanisms 42 clamp the pipe from multiple directions, forming a stable circumferential support. Even if the pipe cross-section is not perfectly circular, the synergistic effect of multiple elastic elements 421 ensures uniform force during clamping, preventing pipe offset from affecting cutting accuracy. Subsequently, the hydraulic rod 12 drives the length-fixing assembly 4 to gradually approach the positioning element 5, precisely controlling the pipe cutting length. During this process, the restraining effect of the clamping element 423 prevents the roller 422 from rotating, generating significant friction with the pipe. This allows the portion of the pipe to be cut to pass through the positioning element 5, preventing slippage and length deviation, ensuring the cutting length of each pipe segment is maintained. The rotation continues until the collar 41 engages with the drive component 11, at which point the drive component 11 drives the fixed-length assembly 4 to rotate at a uniform speed. Simultaneously, the laser 2 begins laser cutting the tube, ensuring the tube maintains circular motion during laser cutting. The laser 2 continuously irradiates the same position, forming a continuous and uniform cutting line. Compared to traditional fixed cutting, rotary cutting avoids glass breakage caused by concentrated laser energy, resulting in a smoother cut and reducing subsequent grinding processes. After cutting, the drive component 11 stops driving and, via the hydraulic rod 12, gradually moves the fixed-length assembly 4 away from the positioning component 5 to the desired tube length. During this process, the tube is restricted by the positioning component 5 and the rollers... 422 can rotate, so the position of the pipe will not change. Then, the hydraulic rod 12 will drive the length-fixing component 4 to gradually approach the positioning component 5. This process is repeated without manual intervention. This cycle mechanism can achieve mass production. Combined with the high-speed characteristics of laser cutting, it can greatly improve processing efficiency and is suitable for continuous industrial operation. As the length-fixing component 4 gradually moves away from the positioning component 5, the roller 422 will continuously squeeze the gas in the clamp 423, so that the gas is finally discharged from the cleaning component 43 to form a pulse airflow, which blows away the impurities and dust adsorbed on the surface of the pipe. At the same time, the negative pressure effect generated at the moment of air replenishment can suck up residual impurities, avoid affecting the subsequent cutting accuracy, and ensure the clean cutting surface.

[0038] Reference Figure 6As shown, in this embodiment: the elastic element 421 includes a telescopic rod 4211 fixedly connected to the inner wall of the collar 41. A support rod 4212 is fixedly installed at the end of the telescopic rod 4211 away from the collar 41. A spring 4213 is sleeved on the outer side of the telescopic rod 4211. The two ends of the spring 4213 are fixedly connected to the inner wall of the collar 41 and the support rod 4212, respectively. A shaft 4214 is fixedly installed on the inner wall of the support rod 4212. A roller 422 is rotatably sleeved on the middle of the outer side of the shaft 4214. When the pipe passes through the fixed-length assembly 4, the outer wall of the pipe squeezes the roller 422, pushing the support rod 4212 to squeeze the spring 4213, and then towards the collar. The roller 422 moves along the inner wall of the sleeve 41, utilizing the elastic restoring potential energy of the spring 4213 to press the roller 422 tightly against the outer wall of the pipe fitting, forming an elastic clamping force. This clamping force is automatically adjusted according to the pipe fitting diameter. The larger the pipe diameter, the greater the compression of the spring 4213 and the greater the clamping force, ensuring that pipe fittings of different diameters can be stably clamped. Furthermore, due to the symmetrical arrangement of multiple sets of elastic elements 421 on the inner wall of the sleeve 41, the independent deformation capability of each set of springs 4213 allows the roller 422 to adhere to the surface of the pipe fitting from different directions. Even if the pipe fitting has ellipticity errors or local unevenness, the synergistic effect of multiple sets of elastic elements 421 can ensure uniform force during clamping and prevent pipe fitting displacement.

[0039] Reference Figures 6-7 As shown in this embodiment: ratchet 4221 is fixedly installed on both sides of roller 422; clamp 423 includes a connecting ring 4231 fixedly connected to shaft 4214; multiple springs 4234 are fixedly installed on one side of connecting ring 4231; ratchet 4233 is fixedly installed at the end of spring 4234 away from connecting ring 4231; ratchet 4233 abuts against ratchet 4221; and through the pushing force of spring 4234, ratchet 4233 and ratchet 4221 exhibit a one-way meshing characteristic, so that during feeding... During the feeding process, roller 422 is locked and cannot rotate, which generates a large frictional force between it and the pipe, thereby driving the pipe to move synchronously towards the positioning component 5 to achieve fixed-length feeding. During the reset process, the rotation direction of roller 422 changes, causing ratchet 2 4233 to allow ratchet 1 4221 to rotate. At this time, roller 422 can be unlocked and rotated, effectively reducing the frictional force between it and the pipe. At the same time, it works with the positioning component 5 to limit the pipe and avoid reverse pulling that interferes with the already positioned pipe, thus realizing the automated cycle of pushing the material to the reset.

[0040] Reference Figures 5-6 - Figure 7As shown in this embodiment: multiple arc-shaped cavity plates 4232 are fixedly installed on the side of the connecting ring 4231 near the ratchet 4233; multiple arc-shaped plates 4235 are fixedly installed on the side of the ratchet 4233 near the connecting ring 4231; the arc-shaped cavity plates 4232 are sleeved on the outside of the arc-shaped plates 4235 and slidably connected; the cleaning component 43 includes a cavity ring 432 fixedly connected to the collar 41; multiple metal hoses 431 fixedly installed on the outer wall of the cavity ring 432 and fixedly connected to the support rod 4212; a slope 4321 is opened on one side of the cavity ring 432; a one-way valve 4322 is fixedly installed on the inner side of the slope 4321; the arc-shaped cavity plates 4232 are connected to the connecting ring 4231; the connecting ring 4231 is connected to the shaft 4214; and the shaft 4214 is connected to the support rod 421. 2 are connected, support rod 4212 is connected to metal hose 431, and metal hose 431 is connected to cavity ring 432. When the fixed length assembly 4 is far away from the positioning part 5, the roller 422 is in a rotating state, which makes ratchet 4233 move back and forth under the push of ratchet 4221 and the reset push of spring 4234. This drives the arc plate 4235 to continuously squeeze the gas in the arc cavity plate 4232, so that the gas passes through the connecting ring 4231, shaft 4214, support rod 4212 and metal hose 431 in sequence, and finally sprays out at high speed from the one-way valve 4322 on the inner side of the inclined surface 4321 of the cavity ring 432, forming a pulse airflow to clean the outer wall of the pipe, which can blow away the dust and impurities on the surface of the pipe and avoid affecting the subsequent cutting accuracy and pipe quality.

[0041] Reference Figure 5 As shown in this embodiment: the other side of the cavity ring 432 is also provided with an inclined surface 4321 and a one-way valve 4322 is also fixedly installed on the inner side. Multiple one-way valves 4322 are arranged in a circle around the cavity ring 432. When the ratchet 4233 is reset, a negative pressure is generated in the cavity ring 432, which then draws in the opposite direction through the one-way valve 4322 on the other inclined surface 4321, forming a bidirectional pulse cleaning. The bidirectional inclined surface 4321 and the circumferentially arranged one-way valves 4322 make the airflow evenly sprayed to the entire circumference of the outer wall of the pipe, avoiding cleaning blind spots and improving cleaning efficiency. Regardless of whether the fixed length component 4 moves in the forward or reverse direction, it can be effectively sprayed or sucked through the one-way valve 4322, ensuring that the cleaning process is synchronized with the cutting action and does not depend on the direction of movement.

[0042] Reference Figures 3-5As shown in this embodiment: a fixing block 121 is welded to one end of the hydraulic rod 12. The fixing block 121 is rotatably connected to the collar 41. A planetary gear 411 is bolted to one side of the collar 41. The driving component 11 includes a servo motor 111 bolted to the worktable 1. A gear 112 is bolted to the driving end of the servo motor 111. The hydraulic rod 12 drives the fixing block 121 to push the collar 41 to move horizontally until the planetary gear 411 on one side of the collar 41 meshes with the gear 112. At this time, the hydraulic rod 12 stops pushing. The servo motor 111 starts and drives the gear 112 to rotate, thereby driving the planetary gear 411 to drive the fixed length component 4 to rotate at a uniform speed. The roller 422 clamps the pipe and rotates synchronously, so that the laser 2 performs ring cutting on the rotating pipe. After the cutting is completed, the servo motor 111 stops, the hydraulic rod 12 retracts, and drives the collar 41 away from the positioning component 5 to prepare for the next cutting cycle, thereby realizing automated batch fixed length cutting processing.

[0043] Reference Figure 3 As shown in this embodiment: the positioning component 5 includes a support plate 51 bolted to the workbench 1. Multiple valves 52 arranged in a circular pattern are fixedly installed on the inner side of the support plate 51. When the tube passes through the valves 52, the valves 52 will bend and deform. The structural characteristics of the valves 52 have been disclosed in Chinese patent CN105178453B and will not be described in detail here. During the overall reset process of the fixed length assembly 4, a huge frictional force is generated with the outer wall of the tube, which prevents the position of the tube from moving. When the tube rotates and is transported, the frictional force is small, so it does not affect the normal rotation and transport of the tube.

[0044] Reference Figure 6 As shown in this embodiment: the outer wall of the roller 422 is fitted with a rubber layer 4222. The circumferential surface of the rubber layer 4222 is a concave arc surface and has anti-slip grooves 4223. When the roller 422 contacts the pipe, the rubber layer 4222 is deformed under pressure, increasing the contact area. Combined with the anti-slip grooves 4223, the friction coefficient can be effectively improved. The elastic design of the concave arc surface allows the roller 422 to adapt to pipe diameter changes within a certain range. When the pipe diameter is smaller than the standard arc radius, the rubber layer 4222 wraps the pipe through greater elastic deformation, and vice versa, the deformation is reduced, thus always maintaining effective contact.

[0045] Reference Figure 3 As shown in this implementation plan: a scale 13 is fixedly installed on the upper end of the workbench 1 to facilitate personnel to observe whether normal fixed-length laser cutting processing is being carried out and to react in a timely manner.

[0046] Reference Figures 1-2As shown in this embodiment: a balancing component 3 is provided on the other side of the upper end of the workbench 1. The balancing component 3 includes a collar 31 that is rotatably connected to the workbench 1. An elastic component 421 and a roller 422 are also provided on the inner side of the collar 31, and the arrangement is consistent with the above assembly scheme. Similar structures will not be described in detail. This ensures that even if the remaining part of the pipe is long after being cut, it will not tilt, thereby ensuring the normal cutting of the entire device.

[0047] Working principle: First, the hydraulic rod 12 drives the length-fixing assembly 4 to move horizontally, making the distance between the length-fixing assembly 4 and the positioning member 5 greater than the desired pipe length. Then, one end of the pipe passes through the middle of the length-fixing assembly 4 and abuts against the positioning member 5. Subsequently, the hydraulic rod 12 drives the length-fixing assembly 4 to gradually approach the positioning member 5. During this process, due to the restraint of the clamp 423, the roller 422 cannot rotate, thus driving the part of the pipe to be cut through the positioning member 5 until the collar 41 engages with the driving member 11 and stops driving. The actuator 11 drives the fixed-length assembly 4 to rotate at a constant speed. At the same time, the laser 2 begins to laser cut the pipe. After the cutting is completed, the actuator 11 stops driving and the hydraulic rod 12 drives the fixed-length assembly 4 to gradually move away from the positioning member 5 to the required length of the pipe. Then the hydraulic rod 12 drives the fixed-length assembly 4 to gradually move closer to the positioning member 5. This process is repeated. As the fixed-length assembly 4 moves away from the positioning member 5, the roller 422 continuously and repeatedly squeezes the gas in the clamp 423, so that the gas is finally discharged from the cleaning member 43 to form a pulsed airflow.

[0048] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A fixed-length cutting device for glass tube processing based on laser cutting, characterized in that, Includes a workbench (1), a laser (2) is bolted on one side of the workbench (1), a positioning component (5) is provided on one side of the upper end of the workbench (1), a hydraulic rod (12) and a driving component (11) are fixedly installed inside the workbench (1), and a fixed length component (4) is provided at one end of the hydraulic rod (12). The fixed-length component (4) includes a collar (41) rotatably connected to the hydraulic rod (12). Multiple sets of conveying mechanisms (42) are symmetrically arranged on the inner wall of the collar (41). A cleaning component (43) is provided on one side of the collar (41). The conveying mechanism (42) includes an elastic element (421) connected to the inner wall of the collar (41), a roller (422) is sleeved in the middle of the outer wall of the elastic element (421), and a clamp (423) is provided on both sides of the outer wall of the elastic element (421). The elastic element (421) includes a telescopic rod (4211) fixedly connected to the inner wall of the collar (41). A support rod (4212) is fixedly installed at one end of the telescopic rod (4211) away from the collar (41). A spring (4213) is sleeved on the outer side of the telescopic rod (4211). The two ends of the spring (4213) are fixedly connected to the inner wall of the collar (41) and the support rod (4212) respectively. A shaft (4214) is fixedly installed on the inner wall of the support rod (4212). The roller (422) is rotatably sleeved on the middle of the outer side of the shaft (4214). Both sides of the roller (422) are fixedly installed with ratchet 1 (4221). The clamp (423) includes a connecting ring (4231) fixedly connected to the shaft (4214). A plurality of spring 2 (4234) are fixedly installed on one side of the connecting ring (4231). A ratchet 2 (4233) is fixedly installed at the end of the spring 2 (4234) away from the connecting ring (4231). The ratchet 2 (4233) abuts against the ratchet 1 (4221). A fixing block (121) is welded to one end of the hydraulic rod (12), and the fixing block (121) is rotatably connected to the collar (41). A planetary gear (411) is bolted to one side of the collar (41). The driving component (11) includes a servo motor (111) bolted to the worktable (1), and a gear (112) is bolted to the driving end of the servo motor (111). The fixing block (121) is driven by the hydraulic rod (12) to push the collar (41) to move horizontally until the planetary gear (411) on one side of the collar (41) meshes with the gear (112). At this time, the hydraulic rod 12 (12) stops pushing, and the servo motor (111) starts and drives the gear (112) to rotate. The positioning component (5) includes a support plate (51) bolted to the worktable (1), and a plurality of valves (52) arranged in a circular pattern are fixedly installed on the inner side of the support plate (51).

2. The fixed-length cutting device for glass tube processing based on laser cutting according to claim 1, characterized in that: Multiple arc-shaped cavity plates (4232) are fixedly installed on the side of the connecting ring (4231) near the ratchet 2 (4233), and multiple arc-shaped plates (4235) are fixedly installed on the side of the ratchet 2 (4233) near the connecting ring (4231). The arc-shaped cavity plates (4232) are slidably sleeved on the outer side of the arc-shaped plates (4235). The cleaning component (43) includes a cavity ring (432) fixedly connected to the collar (41), and multiple metal parts fixedly installed on the outer wall of the cavity ring (432) and fixedly connected to the support rod (4212). The flexible hose (431) has a bevel (4321) on one side of the cavity ring (432). A one-way valve (4322) is fixedly installed on the inner side of the bevel (4321). The arc-shaped cavity plate (4232) is connected to the connecting ring (4231). The connecting ring (4231) is connected to the shaft (4214). The shaft (4214) is connected to the support rod (4212). The support rod (4212) is connected to the metal flexible hose (431). The metal flexible hose (431) is connected to the cavity ring (432).

3. The fixed-length cutting device for glass tube processing based on laser cutting according to claim 2, characterized in that: The other side of the cavity ring (432) is also provided with an inclined surface (4321), and a one-way valve (4322) is also fixedly installed on the inner side of the inclined surface. Multiple one-way valves (4322) are arranged in a circle around the cavity ring (432) as the axis.

4. The fixed-length cutting device for glass tube processing based on laser cutting according to claim 1, characterized in that: The outer wall of the roller (422) is fitted with a rubber layer (4222), and the circumferential surface of the rubber layer (4222) is a concave arc surface and has anti-slip grooves (4223).

5. The fixed-length cutting device for glass tube processing based on laser cutting according to claim 1, characterized in that: A scale (13) is fixedly installed on the upper end of the workbench (1).

6. The fixed-length cutting device for glass tube processing based on laser cutting according to claim 1, characterized in that: A balancing component (3) is provided on the other side of the upper end of the workbench (1). The balancing component (3) includes a second collar (31) that is rotatably connected to the workbench (1). An elastic component (421) and a roller (422) are also provided on the inner side of the second collar (31).

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