Fixed-length cutting device for glass tube processing based on laser cutting

Abstract

The invention relates to the technical field of cutting equipment, and discloses a fixed-length cutting device for glass tube processing based on laser cutting, a laser device is mounted on one side of a workbench through bolts, a positioning piece is arranged on one side of the upper end of the workbench, a hydraulic rod and a driving piece are fixedly mounted in the workbench, and a fixed-length assembly is arranged at one end of the hydraulic rod; the fixed-length assembly comprises a lantern ring rotationally connected with the hydraulic rod, multiple sets of conveying mechanisms are symmetrically arranged on the inner wall of the lantern ring, and a cleaning piece is arranged on one side of the lantern ring; the conveying mechanism comprises an elastic part connected with the inner wall of the lantern ring, the middle of the outer wall of the elastic part is sleeved with a roller, clamping parts are arranged on the two sides of the outer wall of the elastic part, full-process automatic batch machining of fixed-length feeding, rotary cutting, reset cleaning and fixed-length feeding is achieved, and manual intervention is reduced.

Description

Technical Field

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

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

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

[0004] For example, the existing Chinese patent with announcement number CN215880371U discloses a glass tube laser cutting device. When in use, the glass tube is first placed on the placement plate, and the first motor is started. The output shaft of the first motor drives the rotation of the rotating shaft, and the rotating shaft drives the rotation of the two first sprockets. The first sprocket drives the operation of the chain and the second sprocket, and the two second sprockets drive the synchronous rotation of the two first screw rods. Under the limit guidance of the guide rod, the two first screw rods drive the two movable plates to approach each other, and the two movable plates drive the two clamping plates to approach each other, so that the glass tube can be fixed. Then the second motor and the laser are started, and the output shaft of the second motor drives the rotation of the second screw rod. Guided by the cross bar, the second screw rod drives the mounting plate and the laser to move left or right smoothly and slowly, so that the glass tube can be laser cut as a whole, so that the cutting effect is better.

[0005] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: On the one hand, during use, the pipe fittings cannot be automatically cut to fixed length in batches, resulting in a significant reduction in production efficiency. Manual operations require frequent measurement and cutting, which is time-consuming and labor-intensive.

[0006] On the other hand: cutting accuracy is difficult to guarantee, and dimensional errors are prone to occur, affecting product quality and subsequent assembly; labor costs increase significantly, and more operators are required; production flexibility is poor, and it is difficult to quickly respond to diverse order demands. In addition, safety hazards may arise due to non-standard manual operations, and intelligent management and data tracking of production processes cannot be achieved, which is not conducive to improving 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 automatically perform batch fixed-length cutting processing on pipe fittings. For this reason, we propose a fixed-length cutting device for glass pipe processing based on laser cutting.

[0008] To achieve the above-mentioned objectives, the present application adopts the following technical solution: a fixed-length cutting device for glass tube processing based on laser cutting, comprising a workbench, a laser being bolted to one side of the workbench, a positioning member being provided on one side of the upper end of the workbench, a hydraulic rod and a driving member being fixedly installed inside the workbench, and a fixed-length assembly being provided at one end of the hydraulic rod; The fixed-length assembly includes a collar rotatably connected to the hydraulic rod, the inner wall of the collar is symmetrically provided with multiple sets of conveying mechanisms, and a cleaning member is provided on one side of the collar; The conveying mechanism includes an elastic member connected to the inner wall of the collar, a roller is sleeved on the middle of the outer wall of the elastic member, and clamps are provided on both sides of the outer wall of the elastic member. First, the fixed length component is driven by a hydraulic rod to move horizontally as a whole, so that the distance between the fixed length component and the positioning member is greater than the required pipe length, and then one end of the pipe is passed through the middle of the fixed length component and abuts against the positioning member. The elastic member can automatically expand and contract according to the diameter of the pipe, driving the roller to fit the outer wall of the pipe. Whether it is a small diameter capillary or a large diameter glass tube, the buffering effect of the elastic member can not only ensure the clamping force, but also avoid the pipe from being broken due to rigid extrusion, thereby broadening the scope of application of the device. At the same time, since multiple sets of conveying mechanisms clamp the pipe fittings from multiple directions at the same time, forming a stable circumferential support, even if the cross-section of the pipe fittings is not absolutely circular, the coordinated action of multiple sets of elastic parts can ensure uniform force during clamping, avoiding the deviation of the pipe fittings affecting the cutting accuracy. Subsequently, the hydraulic rod drives the fixed-length assembly as a whole to gradually approach the positioning piece, which can accurately control the cutting length of the pipe fittings. However, due to the restriction of the clamping piece during the process, the roller cannot rotate, which in turn generates a large friction force with the pipe fittings, thereby driving the part of the pipe fitting to be cut to pass through the positioning piece, avoiding the length deviation caused by the pipe fittings slipping, and ensuring that the cutting length of each pipe fitting is consistent until the collar and The driving part produces meshing relationship and stops driving. At this time, the driving part drives the fixed-length component to rotate at a uniform speed as a whole. At the same time, the laser starts to laser cut the pipe, so that the pipe keeps circular motion during laser cutting. The laser continues to irradiate the same position to form a continuous and uniform cutting line. Compared with traditional fixed cutting, rotary cutting can avoid glass cracking caused by laser energy concentration, the incision is smoother, and the subsequent polishing process is reduced. After the cutting is completed, the driving part stops driving and drives the fixed-length component as a whole to gradually move away from the distance of the pipe length required by the positioning part through the hydraulic rod. In the process, since the pipe is restricted by the positioning part and the roller can rotate , so the position of the pipe will not change, and then the hydraulic rod will drive the fixed-length component as a whole to gradually approach the positioning piece, and this cycle does not require manual intervention. This cycle mechanism can realize mass production, and combined with the high-speed characteristics of laser cutting, it greatly improves processing efficiency and is suitable for industrial continuous operation. In the process of the fixed-length component as a whole gradually moving away from the positioning piece, the roller will continuously reciprocate to squeeze the gas in the clamp, so that the gas is eventually discharged from the cleaning piece to form a pulsed airflow, blowing away 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 out residual impurities to avoid affecting the subsequent cutting accuracy and ensure a clean cutting surface.

[0009] The cam is secured to the outer wall of the cam and is secured to the cam by a spring which is adapted to move the cam forward and backward as the cam moves.

[0010] Preferably, ratchet 1 is fixedly installed on both sides of the roller, and the clamping member includes a connecting ring fixedly connected to the shaft rod, and multiple springs 2 are fixedly installed on one side of the connecting ring, and ratchet 2 is fixedly installed on the end of the spring 2 away from the connecting ring. Ratchet 2 is in contact with ratchet 1, and the driving force of spring 2 makes ratchet 2 and ratchet 1 present a one-way meshing characteristic, so that the roller is locked and cannot rotate during the feeding process, and then a large friction force is generated between the roller and the pipe fitting, thereby driving the pipe fitting to move synchronously in the direction of the positioning member to realize fixed-length feeding. During the resetting process, the rotation direction of the roller has changed, causing ratchet 2 to allow ratchet 1 to rotate. At this time, the roller is unlocked and can rotate, effectively reducing the friction between the roller and the pipe fitting, and at the same time cooperating with the positioning member to limit the pipe fitting to avoid reverse pulling and interfering with the positioned pipe fitting, thereby realizing the automatic cycle from pushing to resetting.

[0011] Preferably, a plurality of arc-shaped cavity plates are fixedly installed on one side of the connecting ring close to the ratchet wheel 2, a plurality of arc-shaped plates are fixedly installed on one side of the ratchet wheel 2 close to the connecting ring, the arc-shaped cavity plates are sleeved on the outside of the arc-shaped plates and slidably connected, the cleaning member includes a cavity ring fixedly connected to the sleeve, a plurality of metal hoses fixedly connected to the support rod are fixedly installed on the outer wall of the cavity ring, a slope is provided on one side of the cavity ring, a one-way valve is fixedly installed on the inner side of the slope, the arc-shaped cavity plate is connected to the connecting ring, the connecting ring is connected to the shaft rod, the shaft rod is connected to the support rod, and the support rod is connected to the metal hose. The metal hose is connected to the cavity ring. When the fixed-length assembly is away from the positioning piece as a whole, the roller is in a rotating state, causing the ratchet wheel 2 to continuously move back and forth under the push of the ratchet wheel 1 and the reset push of the spring 2, thereby driving the arc plate to continuously squeeze the gas in the arc cavity plate, so that the gas passes through the connecting ring, shaft, support rod, and metal hose in turn, and finally ejected at high speed from the one-way valve on the inner side of the inclined surface of the cavity ring, forming a pulse airflow to clean the outer wall of the pipe fitting, which can blow away dust and impurities on the surface of the pipe fitting to avoid affecting the subsequent cutting accuracy and pipe quality.

[0012] Preferably, the other side of the cavity ring is also provided with a bevel and a one-way valve is also fixedly installed on the inner side. There are multiple one-way valves arranged in a circle with the cavity ring as the axis. When the ratchet wheel 2 is reset, negative pressure is generated in the cavity ring, and then reverse suction is generated through the one-way valve on the bevel on the other side, forming two-way pulse cleaning. The two-way bevel and the one-way valve arranged in a circle make the airflow evenly sprayed to the outer wall of the pipe around the entire circumference, avoiding cleaning blind spots and improving cleaning efficiency. Regardless of whether the fixed-length component moves forward or backward, effective jetting or suction can be achieved through the one-way valve control, ensuring that the cleaning process is synchronized with the cutting action and is independent of the moving direction.

[0013] Preferably, a fixed block is welded to one end of the hydraulic rod, and the fixed block is rotatably connected to the collar. A planetary gear is bolted to one side of the collar. The driving part includes a servo motor bolted to the workbench, and a gear is bolted to the driving end of the servo motor. The fixed block is driven by the hydraulic rod to push the collar to move horizontally until the planetary gear on one side of the collar engages with the gear. The hydraulic rod stops pushing, and the servo motor starts at this time, driving the gear to rotate, thereby driving the planetary gear to drive the fixed-length assembly as a whole to rotate at a uniform speed, and the roller clamps the pipe to rotate synchronously, so that the laser performs circular cutting on the rotating pipe. After the cutting is completed, the servo motor stops, the hydraulic rod retracts, and drives the collar away from the positioning part to prepare for the next cutting cycle, thereby realizing automated batch fixed-length cutting processing.

[0014] Preferably, the positioning member includes a support plate bolted to the workbench, and a plurality of valves arranged in a circumferential manner are fixedly installed on the inner side of the support plate. When the tube passes through the valve, the valve will bend and deform, so that during the overall resetting process of the fixed-length component, a huge friction force is generated between the tube and the outer wall of the tube, thereby preventing the position of the tube from moving. When the tube is rotated and transported, the friction force is small, thereby not affecting the normal rotation and transportation of the tube.

[0015] Preferably, the outer wall of the roller is covered with a rubber layer, the circumferential surface of the rubber layer is a concave arc surface and is provided with anti-skid grooves. When the roller contacts the pipe, the rubber layer is compressed and deformed, expanding the contact area. Combined with the opening of the anti-skid groove, the friction coefficient can be effectively improved. The elastic design of the concave arc surface allows the roller to adapt to changes in pipe diameter within a certain range. When the pipe diameter is smaller than the standard arc surface radius, the rubber layer wraps the pipe through a larger elastic deformation, and vice versa, the deformation is reduced, thereby always maintaining effective contact.

[0016] Preferably, a scale is fixedly installed on the upper end of the workbench to facilitate personnel to observe whether the fixed-length laser cutting process is being carried out normally and to respond in time.

[0017] Preferably, a balancing member is provided on the other side of the upper end of the workbench, and the balancing member includes a ring 2 rotatably connected to the workbench. An elastic member and a roller are also provided on the inner side of the ring 2, so that even if the remaining part of the pipe after cutting is long, the head will not warp, thereby ensuring normal cutting of the entire device.

[0018] The technical effects and advantages of the present invention are as follows: the hydraulic rod cooperates with the driving part, combined with the one-way locking function of the ratchet mechanism to achieve millimeter-level fixed length accuracy; the planetary gear transmission ensures the smooth rotation of the ring, and cooperates with the laser to complete high-quality circular cutting, with smooth incisions and reduced polishing processes.

[0019] The flexible clamping structure of the elastic element adapts to pipes of varying diameters, preventing damage from squeezing. During cutting, the roller's rubber coating and anti-slip grooves enhance friction and protect the pipe surface. Furthermore, the cleaning element, linked to the clamping element, utilizes mechanical motion to generate pulsed air and suction, automatically removing surface impurities and dust, improving cutting quality.

[0020] The device uses hydraulic drive and mechanical transmission to achieve feeding, cutting, resetting cleaning, and feeding. 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 industrial continuous production, significantly improving processing efficiency and equipment life.

[0021] In the present invention, the hydraulic rod drives the fixed-length assembly to move, the cutting length is calibrated by the positioning piece, the ratchet mechanism realizes the one-way rotation of the roller, and promotes the precise feeding of the pipe fittings. The roller is locked during cutting to ensure a stable position, and is unlocked during resetting to reduce friction.

[0022] In the present invention, the servo motor drives the ring to rotate through the planetary gear, so that the pipe rotates at a uniform speed to cooperate with the laser cutting. The clamping part moves to squeeze the gas, which is discharged and sucked from the one-way valve of the cleaning part through the channel, forming pulse jet and suction to remove surface impurities in real time.

[0023] In the present invention, the elastic member drives the roller to adaptively clamp pipes of different diameters through the expansion and contraction of the spring. The concave arc surface and anti-slip groove of the roller rubber layer not only increase the friction force but also protect the surface of the pipe from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the workbench and positioning member structure of the present invention; Figure 4 This is a schematic structural diagram of a fixed-length assembly according to the present invention; Figure 5 This is an exploded schematic diagram of the fixed-length component and cleaning piece structure of the present invention; Figure 6 It is an exploded schematic diagram of the conveying mechanism structure of the present invention; Figure 7 It is an exploded schematic diagram of the card structure of the present invention.

[0025] Legend: 1. Workbench; 11. Driving element; 111. Servo motor; 112. Gear; 12. Hydraulic rod; 121. Fixing block; 13. Scale; 2. Laser; 3. Balancing element; 31. Second collar; 4. Fixed-length assembly; 41. Collar; 411. Planetary gear; 42. Conveying mechanism; 421. Elastic element; 4211. Telescopic rod; 4212. Support rod; 4213. Spring 1; 4214. Shaft rod. 422, roller; 4221, ratchet 1; 4222, rubber layer; 4223, anti-slip groove; 423, clamp; 4231, connecting ring; 4232, arc-shaped cavity plate; 4233, ratchet 2; 4234, spring 2; 4235, arc-shaped plate; 43, cleaning part; 431, metal hose; 432, cavity ring; 4321, inclined plane; 4322, one-way valve; 5, positioning part; 51, support plate; 52, valve. DETAILED DESCRIPTION

[0026] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0027] Reference Figure 1-Figure 5 As shown, the present invention provides a technical solution: a fixed-length cutting device for glass tube processing based on laser cutting, comprising a workbench 1, a laser 2 bolted to one side of the workbench 1, a positioning member 5 provided on one side of the upper end of the workbench 1, a hydraulic rod 12 and a driving member 11 fixedly installed inside the workbench 1, and a fixed-length assembly 4 provided at one end of the hydraulic rod 12; The fixed length assembly 4 includes a collar 41 rotatably connected to the hydraulic rod 12 , and a plurality of conveying mechanisms 42 are symmetrically arranged on the inner wall of the collar 41 , and a cleaning member 43 is arranged on one side of the collar 41 ; The conveying mechanism 42 includes an elastic member 421 connected to the inner wall of the collar 41, a roller 422 is sleeved on the middle of the outer wall of the elastic member 421, and clamps 423 are provided on both sides of the outer wall of the elastic member 421. First, the hydraulic rod 12 is used to drive the fixed length component 4 to move horizontally as a whole, so that the distance between the fixed length component 4 and the positioning member 5 is greater than the required pipe length, and then one end of the pipe is passed through the middle of the fixed length component 4 and abuts against the positioning member 5. The elastic member 421 can automatically expand and contract according to the diameter of the pipe, driving the roller 422 to fit the outer wall of the pipe. Whether it is a small diameter capillary or a large diameter glass tube, the buffering effect of the elastic member 421 can not only ensure the clamping force, but also avoid the pipe from being broken due to rigid extrusion. The invention can realize the cutting of pipes by the plurality of conveying mechanisms 42 and the like, and the cutting length of the pipes can be precisely controlled. ... The degree of rotation is consistent until the ring 41 and the driving member 11 are engaged and stop driving. At this time, the driving member 11 drives the fixed length component 4 to rotate at a uniform speed as a whole, and the laser 2 starts to laser cut the pipe, so that the pipe maintains a circular motion during laser cutting. The laser 2 continuously irradiates the same position to form a continuous and uniform cutting line. Compared with traditional fixed cutting, rotary cutting can avoid glass cracking caused by concentrated laser energy, and the incision is smoother, reducing the subsequent polishing process. After the cutting is completed, the driving member 11 stops driving and drives the fixed length component 4 as a whole to gradually move away from the positioning member 5 to the distance of the pipe length required by the positioning member 5 through the hydraulic rod 12. In the process, since the pipe is restricted by the positioning member 5 and the roller 422 can rotate, so the position of the pipe will not change. Then the hydraulic rod 12 will drive the fixed-length component 4 as a whole to gradually approach the positioning component 5. This reciprocating process does not require manual intervention. This circulation mechanism can realize mass production and greatly improve the processing efficiency with the high-speed characteristics of laser cutting. It is suitable for industrial continuous operation. In the process of the fixed-length component 4 as a whole gradually moving away from the positioning component 5, the roller 422 will continuously reciprocate and squeeze the gas in the clamp 423, so that the gas is finally discharged from the cleaning component 43 to form a pulsed airflow, blowing away 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 out residual impurities to avoid affecting the subsequent cutting accuracy and ensure the cleanliness of the cutting surface.

[0028] Reference Figure 6As shown, in this embodiment: the elastic member 421 includes a telescopic rod 4211 fixedly connected to the inner wall of the collar 41, and 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, and the two ends of the spring 4213 are respectively fixedly connected to the inner wall of the collar 41 and the support rod 4212. A shaft 4214 is fixedly installed on the inner wall of the support rod 4212, and a roller 422 is rotatably sleeved on the outer middle part of the shaft 4214. When the pipe passes through the fixed-length component 4, the outer wall of the pipe squeezes the roller 422, pushing the support rod 4212 to squeeze the spring 4213, and then to the collar. 41 moves toward the inner wall, and utilizes the elastic reset potential energy of spring 1 4213 to make roller 422 close to the outer wall of the pipe, forming an elastic clamping force. The clamping force is automatically adjusted with the diameter of the pipe. The larger the pipe diameter, the greater the compression of spring 1 4213 and the greater the clamping force, ensuring that pipes of different diameters can be stably clamped. Moreover, since multiple groups of elastic members 421 are symmetrically arranged on the inner wall of the collar 41, the independent deformation ability of each group of spring 1 4213 enables roller 422 to fit the surface of the pipe from different directions. Even if the pipe has ovality error or local unevenness, the coordinated effect of multiple groups of elastic members 421 can ensure uniform force during clamping and prevent the pipe from deflecting.

[0029] Reference Figure 6-Figure 7 As shown, in this embodiment: ratchet wheels 1 4221 are fixedly installed on both sides of the roller 422, the clamping member 423 includes a connecting ring 4231 fixedly connected to the shaft 4214, a plurality of springs 2 4234 are fixedly installed on one side of the connecting ring 4231, and a ratchet wheel 2 4233 is fixedly installed on the end of the spring 2 4234 away from the connecting ring 4231. The ratchet wheel 2 4233 is in contact with the ratchet wheel 1 4221, and the driving force of the spring 2 4234 makes the ratchet wheel 2 4233 and the ratchet wheel 1 4221 present a one-way meshing characteristic, so that when the roller 422 is delivered, the ratchet wheel 2 4233 and the ratchet wheel 1 4221 are in contact with each other. During the feeding process, the roller 422 is locked and cannot rotate, which generates a large friction force with the pipe, thereby driving the pipe to move synchronously toward the positioning member 5 to achieve fixed-length feeding. During the resetting process, the rotation direction of the roller 422 changes, causing the ratchet 2 4233 to allow the ratchet 1 4221 to rotate. At this time, the roller 422 is unlocked and can rotate, effectively reducing the friction force between the roller and the pipe. At the same time, it cooperates with the positioning member 5 to limit the pipe to avoid reverse pulling to interfere with the positioned pipe, thereby realizing the automatic cycle from pushing to resetting.

[0030] Reference Figure 5-Figure 6 - Figure 7As shown, in this embodiment: a plurality of arc-shaped cavity plates 4232 are fixedly installed on one side of the connecting ring 4231 near the ratchet 2 4233, a plurality of arc-shaped plates 4235 are fixedly installed on one side of the ratchet 2 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 member 43 includes a cavity ring 432 fixedly connected to the sleeve 41, a plurality of metal hoses 431 fixedly connected to the support rod 4212 are fixedly installed on the outer wall of the cavity ring 432, a slope 4321 is provided 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 is connected, the support rod 4212 is connected to the metal hose 431, and the metal hose 431 is connected to the cavity ring 432. When the fixed-length component 4 is away from the positioning member 5 as a whole, the roller 422 is in a rotating state, so that the ratchet wheel 2 4233 is continuously pushed back and forth by the ratchet wheel 1 4221 and the reset push of the spring 2 4234, thereby driving 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, the shaft 4214, the support rod 4212, and the metal hose 431 in turn, and is finally ejected at high speed from the one-way valve 4322 on the inner side of the inclined surface 4321 opened in the cavity ring 432, forming a pulse airflow to clean the outer wall of the pipe fitting, which can blow away dust and impurities on the surface of the pipe fitting to avoid affecting the subsequent cutting accuracy and pipe fitting quality.

[0031] Reference Figure 5 As shown, in this embodiment: the other side of the cavity ring 432 is also provided with a bevel 4321 and a one-way valve 4322 is also fixedly installed on the inner side. There are multiple one-way valves 4322 arranged in a circle with the cavity ring 432 as the axis. When the ratchet 2 4233 is reset, negative pressure is generated in the cavity ring 432, and then reverse suction is generated through the one-way valve 4322 on the other side of the bevel 4321, forming a two-way pulse cleaning. The two-way bevel 4321 and the one-way valve 4322 arranged in a circle make the airflow evenly sprayed to the outer wall of the pipe around the entire circumference, avoiding cleaning blind spots and improving cleaning efficiency. Regardless of whether the fixed-length component 4 moves forward or backward, it can be controlled by the one-way valve 4322 to achieve effective jetting or suction, ensuring that the cleaning process is synchronized with the cutting action and is independent of the moving direction.

[0032] Reference Figure 3-Figure 5As shown, in this embodiment: a fixed block 121 is welded and installed at one end of the hydraulic rod 12, and the fixed block 121 is rotatably connected to the collar 41. A planetary gear 411 is bolted to one side of the collar 41. The driving member 11 includes a servo motor 111 bolted to the workbench 1, and a gear 112 is bolted to the driving end of the servo motor 111. The fixed 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 engages with the gear 112. The hydraulic rod 12 stops pushing. At this time, 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 as a whole, and the roller 422 clamps the pipe and rotates synchronously, so that the laser 2 performs annular 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 member 5 to prepare for the next cutting cycle, thereby realizing automated batch fixed-length cutting processing.

[0033] Reference Figure 3 As shown, in this embodiment: the positioning member 5 includes a support plate 51 bolted to the workbench 1, and a plurality of valves 52 arranged in a circumferential manner are fixedly installed on the inner side of the support plate 51. When the pipe passes through the valve 52, the valve 52 will bend and deform. The structural characteristics of the valve 52 have been disclosed in Chinese patent CN105178453B and will not be elaborated on here. During the overall resetting process of the fixed-length component 4, a huge friction force is generated with the outer wall of the pipe to prevent the position of the pipe from moving. When the pipe is rotated and transported, the friction force is small, which does not affect the normal rotation and transportation of the pipe.

[0034] Reference Figure 6 As shown, in this embodiment: the outer wall of the roller 422 is provided with a rubber layer 4222, the circumferential surface of the rubber layer 4222 is a concave arc surface and is provided with an anti-slip groove 4223. When the roller 422 contacts the pipe, the rubber layer 4222 is compressed and deformed to expand the contact area. Combined with the opening of the anti-slip groove 4223, the friction coefficient can be effectively improved, and the elastic design of the concave arc surface allows the roller 422 to adapt to changes in pipe diameter within a certain range. When the pipe diameter is smaller than the standard arc surface radius, the rubber layer 4222 wraps the pipe through a larger elastic deformation, and vice versa, the deformation is reduced, thereby always maintaining effective contact.

[0035] Reference Figure 3 As shown, in this embodiment: a scale 13 is fixedly installed on the upper end of the workbench 1, which is convenient for personnel to observe whether the fixed-length laser cutting process is being carried out normally and to respond in time.

[0036] Reference Figure 1-Figure 2As shown, in this embodiment: a balancing member 3 is provided on the other side of the upper end of the workbench 1, and the balancing member 3 includes a second ring 31 rotatably connected to the workbench 1. The inner side of the second ring 31 is also provided with an elastic member 421 and a roller 422, and the arrangement is consistent with the above-mentioned assembly scheme. Similar structures are not introduced in detail, so that even if the remaining part of the pipe after cutting is long, the head will not warp, thereby ensuring the normal cutting of the entire device.

[0037] Working principle: First, the hydraulic rod 12 drives the fixed length component 4 to move horizontally as a whole, so that the distance between the fixed length component 4 and the positioning member 5 is greater than the required pipe length, and then one end of the pipe passes through the middle of the fixed length component 4 and abuts against the positioning member 5, and then the hydraulic rod 12 drives the fixed length component 4 as a whole to gradually approach the positioning member 5. In the process, due to the restriction of the clamp 423, the roller 422 cannot rotate, thereby driving the part of the pipe to be cut to pass through the positioning member 5 until the ring 41 and the driving member 11 are engaged and the driving stops. At this time, the driving The moving part 11 drives the fixed-length component 4 to rotate at a constant speed as a whole, and at the same time the laser 2 starts to perform laser cutting on the pipe. After the cutting is completed, the driving part 11 stops driving and drives the fixed-length component 4 as a whole to gradually move away from the positioning part 5 to the distance of the pipe length required by the positioning part 5 through the hydraulic rod 12. Then the hydraulic rod 12 drives the fixed-length component 4 as a whole to gradually approach the positioning part 5, and so on. In the process of the fixed-length component 4 as a whole gradually moving away from the positioning part 5, the roller 422 will continuously squeeze the gas in the clamping part 423 back and forth, so that the gas is finally discharged from the cleaning part 43 to form a pulsed airflow.

[0038] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A fixed-length cutting device for glass tube processing based on laser cutting, characterized in that: The invention comprises a workbench (1), a laser (2) is bolted to one side of the workbench (1), a positioning member (5) is provided on one side of the upper end of the workbench (1), a hydraulic rod (12) and a driving member (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 assembly (4) comprises a collar (41) rotatably connected to the hydraulic rod (12), a plurality of conveying mechanisms (42) are symmetrically arranged on the inner wall of the collar (41), and a cleaning member (43) is arranged on one side of the collar (41); The conveying mechanism (42) comprises an elastic member (421) connected to the inner wall of the collar (41), a roller (422) is sleeved on the middle portion of the outer wall of the elastic member (421), and clamping members (423) are provided on both sides of the outer wall of the elastic member (421).

2. The laser cutting-to-length cutting device for glass tube processing according to claim 1, characterized in that: The elastic member (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), and the two ends of the spring (4213) are respectively fixedly connected to the inner wall of the collar (41) and the support rod (4212), a shaft (4214) is fixedly installed on the inner wall of the support rod (4212), and the roller (422) is rotatably sleeved on the outer middle part of the shaft (4214).

3. The laser cutting-to-length cutting device for glass tube processing according to claim 2, characterized in that: Ratchet 1 (4221) is fixedly installed on both sides of the roller (422), the clamping member (423) includes a connecting ring (4231) fixedly connected to the shaft (4214), a plurality of springs 2 (4234) are fixedly installed on one side of the connecting ring (4231), and ratchet 2 (4233) is fixedly installed on one end of the spring 2 (4234) away from the connecting ring (4231), and the ratchet 2 (4233) is in contact with the ratchet 1 (4221).

4. The laser cutting-to-length cutting device for glass tube processing according to claim 3, characterized in that: A plurality of arc-shaped cavity plates (4232) are fixedly mounted on one side of the connecting ring (4231) close to the second ratchet wheel (4233), a plurality of arc-shaped plates (4235) are fixedly mounted on one side of the second ratchet wheel (4233) close to 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 member (43) comprises a cavity ring (432) fixedly connected to the sleeve ring (41), a plurality of metal plates fixedly connected to the support rod (4212) are fixedly mounted on the outer wall of the cavity ring (432), and the plurality of metal plates fixedly connected to the support rod (4212) are fixedly mounted on the outer wall of the cavity ring (432). The hollow ring (432) is provided with an inclined surface (4321) on one side, and a one-way valve (4322) is fixedly installed on the inner side of the inclined surface (4321). The arc-shaped hollow 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 hose (431), and the metal hose (431) is connected to the hollow ring (432).

5. The laser cutting-to-length cutting device for glass tube processing according to claim 4, 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. A plurality of the one-way valves (4322) are arranged in a circle with the cavity ring (432) as the axis.

6. The laser cutting-to-length cutting device for glass tube processing according to claim 1, characterized in that: 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 member (11) includes a servo motor (111) bolted to the workbench (1), and a gear (112) is bolted to the driving end of the servo motor (111).

7. The laser cutting-to-length cutting device for glass tube processing according to claim 1, characterized in that: The positioning member (5) comprises a support plate (51) bolted to the workbench (1), and a plurality of valves (52) arranged in a circumferential manner are fixedly mounted on the inner side of the support plate (51).

8. The laser cutting-to-length cutting device for glass tube processing according to claim 1, characterized in that: The outer wall of the roller (422) is provided with a rubber layer (4222), and the circumferential surface of the rubber layer (4222) is a concave arc surface and is provided with an anti-slip groove (4223).

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

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

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