CN210818000U - Pipe laser cutting machine with slag removal mechanism - Google Patents

Abstract

The pipe laser cutting machine comprises a main frame, a pipe conveying mechanism and a laser head, wherein the pipe conveying mechanism and the laser head are arranged on the main frame; the pipe fitting machining device is characterized by further comprising a No. A driver, a No. C driver, a No. A sliding rail and a No. C sliding rail, wherein the No. A driver and the No. C driver are arranged on the main rack, and the No. A sliding rail and the No. C sliding rail are respectively positioned and connected to the main rack and are arranged in parallel along the moving direction of a pipe; a No. C module which can move under the driving of a No. C driver is arranged on the No. C sliding rail in a sliding manner and is used for determining the extending length of the cut pipe; a deslagging mechanism which can move under the driving of the driver A is arranged on the slide rail A in a sliding mode and used for removing condensed metal slag generated after the laser head works.

Description

Pipe laser cutting machine with slag removal mechanism

Technical Field

The invention relates to a pipe laser cutting machine comprising a deslagging mechanism, which can be used for removing condensed metal slag formed in the process of cutting a metal pipe by using laser.

Background

Metal pipes have been widely used in facilities for daily life, such as fences, street lamps, window frames, and the like. Before the living facilities are assembled, the metal pipes are required to be cut according to specific lengths. A more common cutting method is cutting with an electric saw cutter. The electric saw type cutting machine cuts metal pipes through the electric metal blade, cutting efficiency is very low, in addition, very large noise can be generated in the cutting process, a large amount of metal chips can be generated, the metal chips are splashed around, and pollution is very large. Laser cutting machine has appeared on the market afterwards, be provided with the laser head on the laser cutting machine, the metal tubular product is cut to the thermal effect of laser head mainly utilizing, and cutting efficiency is than adopting electronic metal blade to be many times higher, and the noise is low moreover. However, when the laser head is used for cutting metal pipes, a small amount of molten metal liquid drops can be generated at the cut of the metal pipes under the action of the heat effect of the laser head, the molten metal liquid drops are condensed into metal slag particles which are adhered to the inner wall of the metal pipes, the metal slag particles are not easy to clean, and the application of the later-stage pipes, such as welding work, can be influenced. In order to solve the technical problem, the chinese patent application CN201811519948.2 discloses a metal pipe laser cutting machine with a scrap removing function, which comprises a frame, wherein a pipe clamp for clamping a metal pipe, a laser cutter for cutting the metal pipe, a positioner and a synchronous motor for driving the positioner to slide are arranged on the frame. The positioner comprises a positioning plate, a plug for positioning the metal pipe, a chip removing pipe for extending into the metal pipe and plugging the inside of the metal pipe, and a driving device for driving the chip removing pipe to move. One end of the chip removing pipe is connected with the driving device, and the other end of the chip removing pipe is a plugging end and is provided with an opening. The positioning plate fixes the plug and the driving device into a whole so as to enable the plug, the driving device and the scrap removing pipe to move synchronously. In the process of cutting the metal pipe by the laser cutter, the blocking end of the chip removing pipe extends into the metal pipe to block the metal pipe, and metal chips generated in the cutting process are difficult to enter the metal pipe, so that the metal chips generated in the cutting process are prevented from being bonded on the inner side wall of the metal pipe. Furthermore, one end of the chip removing pipe connected with the driving device is connected with an air exhaust device, when the air exhaust device is started, the chips can be sucked into the chip removing pipe, and the metal chips are prevented from splashing to damage other parts of the metal pipe laser cutting machine.

Disclosure of Invention

The chip removing structure of the metal pipe laser cutting machine disclosed in patent CN201811519948.2 is analyzed to find that the plug belongs to a positioner for positioning the extension length of the pipe, and the plug and the chip removing pipe connected to the driving device must move synchronously because the positioning plate fixes the plug and the driving device into a whole. Therefore, when the position of the plug is required to be adjusted according to the cutting length of the pipe, the chip removing pipe is inevitably connected to move together to deviate from the originally determined chip removing position. And then, the chip removing position of the chip removing pipe is required to be readjusted through the driving device, so that the notch of the chip removing pipe is arranged corresponding to the laser head. This adjustment operation is very loaded down with trivial details, needs to operate repeatedly, has the deviation slightly, and the laser that the laser head produced can shine remove on the bits pipe, damage remove the bits pipe. Therefore, the arrangement of the driving scheme prolongs the preset time before the cutting and processing of the pipe and seriously delays the production efficiency. In view of the above technical problems, the present invention needs to provide a technical solution that can quickly adjust the positioner for positioning the extension length of the pipe and the slag removal mechanism to the correct working position according to the cutting length of the pipe, so as to shorten the pre-adjustment time before the pipe is cut and processed, and improve the production efficiency.

In view of the above, the present invention provides a pipe laser cutting machine including a slag removal mechanism, which includes a main frame, a pipe conveying mechanism and a laser head, the pipe conveying mechanism is disposed on the main frame, the pipe conveying mechanism is used for conveying a cut pipe, and the laser head is used for emitting a laser beam to cut off the pipe; the pipe fitting machining device is characterized by further comprising a No. A driver, a No. C driver, a No. A sliding rail and a No. C sliding rail, wherein the No. A driver and the No. C driver are arranged on the main rack, and the No. A sliding rail and the No. C sliding rail are respectively positioned and connected to the main rack and are arranged in parallel along the moving direction of a pipe; a No. C module capable of moving under the driving of the No. C driver is arranged on the No. C sliding rail in a sliding mode and used for determining the extending length of the cut pipe; a slag removal mechanism capable of moving under the driving of the driver A is arranged on the slide rail A in a sliding mode and used for removing condensed metal slag generated after the laser head works.

The A slide rail and the C slide rail are respectively positioned and connected on the main frame, so that the positions of the A slide rail and the C slide rail relative to the main frame are solidified, and the positions of the A slide rail and the C slide rail on the main frame are not changed along with the sliding of the C module and the deslagging mechanism. In the sliding process of the module C, under the condition that the sliding of the module C is not hindered, the position of the deslagging mechanism which is arranged on the slide rail A in a sliding way is not limited by the module C and is changed.

The A sliding rail and the C sliding rail are arranged in parallel along the moving direction of the pipe, so that the deslagging mechanism and the C module which are respectively arranged on the A sliding rail and the C sliding rail in a sliding mode can also slide along the moving direction of the pipe under the guiding action of the A sliding rail and the C sliding rail. The slide rails a and C are structures or members capable of providing sliding guidance for the deslagging mechanism and the module C, respectively, and may be, for example, relatively common linear guide rails; alternatively, the driving screw may be a driving screw on which a nut is slidable in a longitudinal direction thereof, and the driving screw may transmit a driving force to the nut as well as guide the nut.

Wherein, the module C is a locator used for determining the extending length of the cut pipe.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: the sliding rails A and the sliding rails C are respectively positioned and connected on the main frame, the module C is driven by the driver C to slide on the sliding rails C, and the deslagging mechanism is driven by the driver A to slide on the sliding rails A, so that the module C and the deslagging mechanism can relatively and independently slide, namely, the sliding of the other side cannot drive the other side to follow the sliding under the condition of not blocking the sliding of the other side. Before the tube is cut for the first time, the deslagging mechanism and the C-shaped module can be driven to slide by the A-shaped driver and the C-shaped driver respectively to be adjusted to be in the correct working position. Before cutting tubular product next time, if the extension length of cutting tubular product changes, then the slagging-off mechanism does not block under the condition that No. C module slided, only need readjust the position of No. C module, and need not readjust the position of slagging-off mechanism has so shortened the preset time before tubular product cutting processing, is favorable to improving production efficiency.

The technical scheme is that the device comprises a laser head, a main frame, a laser head, a guide device and a bin, wherein the laser head is arranged on the main frame, the guide device is arranged below the laser head and used for discharging and guiding cut pipes, and the bin is arranged below the guide device and used for receiving the pipes rolled off from the guide device. According to the technical scheme, the cut pipe materials automatically enter the storage bin under the discharging guide of the guide device.

The C-module is provided with a sensor or a sensing electrode at the vertical surface position for determining the extending length of the cut pipe, and the sensor or the sensing electrode is used for contacting the cut pipe, picking up the contact signal and transmitting the contact signal to the controller. According to the technical scheme, the controller can know whether the cut pipe extends out of the specified length, so that the laser head can be controlled by the controller to cut the pipe after the cut pipe extends out of the specified length, and the cutting length of the pipe is guaranteed.

The slag removing mechanism comprises a hollow outer suction pipe, a side wall notch is formed in the side wall of one pipe section of the outer suction pipe, the outer suction pipe is used for being inserted into a cut pipe when the secondary cutting task is started, and the side wall notch of the outer suction pipe is used for not only facing the laser head but also being positioned right in front of the irradiation direction of the laser beam when the secondary cutting task is started; an air suction channel is arranged in the outer suction pipe and is used for sucking air in the outer suction pipe; an inner shovel which can move relative to the outer suction pipe is further arranged in the outer suction pipe, and the inner shovel is used for shoveling the residual condensed metal slag in the outer suction pipe.

The side wall notch of the outer suction pipe is used for facing the laser head and is positioned right ahead of the laser beam irradiation direction when a secondary cutting task is started, so that most of molten metal formed at the notch of the cut pipe drops downwards, the molten metal drops into the pipe cavity of the outer suction pipe through the side wall notch and cannot drop onto the inner side wall of the cut pipe, the side wall notch becomes a feeding port for receiving the molten metal drops, and the outer suction pipe becomes a waste residue storage device for storing the molten metal drops.

Wherein the air suction channel is used for sucking air in the outer suction pipe, so that negative pressure is formed in the outer suction pipe, air in the area near the side wall gap is sucked, and molten metal drops or condensed metal slag in the area near the cut of the cut pipe can be sucked into the outer suction pipe through the side wall gap and further discharged out of the outer suction pipe. In addition, the flowing air in the air suction channel is used for absorbing the heat of the molten metal drops, so that part of the molten metal drops can be cooled and solidified quickly in the air preferentially, and the quantity of condensed metal slag condensed on the inner side wall of the outer suction pipe is reduced.

The inner shovel and the outer suction pipe are relatively moved in the process of shoveling away the condensed metal slag remained in the outer suction pipe, for example, the outer suction pipe is in a static state, the inner shovel is driven to move, or the inner shovel is in a static state, the outer suction pipe is driven to move, so that the condensed metal slag can be shoveled up by means of the cohesive force of the condensed metal slag effectively and effectively by means of the inner shovel, and a favorable foundation is provided for later slag pumping work.

The inner shovel is an independent component which is in a separated structure with the outer suction pipe, can be arranged in the outer suction pipe and shovel off condensed metal slag accumulated in the outer suction pipe. The structure of the inner shovel can be various, for example, the inner shovel is approximately in a ladle shape and is provided with an arc-shaped blade part; or a circular slice arranged along the radial direction of the outer suction pipe, and the circular slice is provided with a blade arranged in a circular ring shape.

According to the technical scheme, the air suction channel is arranged in the outer suction pipe, and the inner shovel which can move relative to the outer suction pipe is also arranged in the outer suction pipe, so that the condensed metal slag adhered in the inner suction pipe can be timely and effectively removed by the inner shovel, and a favorable removing basis is provided for the work of sucking the condensed metal slag by the air suction channel. On the basis, the condensed metal slag can be easily discharged out of the outer suction pipe by the suction airflow of the suction channel, so that the outer suction pipe is effectively prevented from being completely blocked by the excessive accumulation of the condensed metal slag, the smoothness of the flow of the suction airflow in the outer suction pipe can be maintained, and the slag discharge capacity is optimized. In addition, with the aid of the inner shovel, the requirement on the suction force of the suction channel is relatively reduced, so that the suction force in the chip removing pipe is not required to be enhanced to strengthen the slag discharge capacity in a manner of blocking the pipe inner cavity of the cut pipe by the chip removing pipe similarly to the prior patent CN 201811519948.2.

The technical scheme is that the deslagging mechanism further comprises a rod-shaped inner rod, the inner rod is inserted into the outer suction pipe, the air suction channel is arranged in the inner rod or between the inner rod and the outer suction pipe, and the inner shovel is arranged at the front end of the inner rod or the front end face of the inner rod is directly formed into the inner shovel. The inner shovel can adopt a split type or integrated structure with the inner rod and is arranged at the front end of the inner rod; the inner rod may be formed with the inner blade directly at the tip end surface portion thereof, and the inner blade may be formed directly at the tip end portion by obliquely cutting the hollow inner rod directly at the tip end surface portion thereof, or may be formed directly at the tip end portion of the inner rod at a slope-like tip end surface portion thereof by forging or the inner blade may be formed directly at the tip end portion thereof.

The condensed metal slag adhered in the outer suction pipe is mainly cleaned by the inner shovel, and in order to optimize the slag removing capacity of the inner shovel, the further technical scheme can be that the outer diameter of the inner shovel is slightly smaller than the inner diameter of the outer suction pipe. Wherein the outer diameter of the inner blade is slightly smaller than the inner diameter of the outer suction pipe, the above feature defines that the outer diameter of the inner blade is not only smaller than the inner diameter of the outer suction pipe, but that the difference in radial dimension between them is very small, so that the inner blade can clean the condensed metal slag substantially against the inner wall of the outer suction pipe over a large area, thereby enabling the slag removal capacity of the inner blade to be optimized.

The technical scheme can be that the front end part of the outer suction pipe is sealed, and the side wall gap is close to the front end part of the outer suction pipe. Therefore, the air suction force of the area, which is positioned near the side wall gap, in the outer suction pipe is enhanced under the condition of maintaining the air suction power unchanged.

The technical scheme is that the device also comprises a silk suction head, the silk suction channel is communicated with the silk suction head, and the silk suction head is used for sucking air in the silk suction channel by means of oblique jet air flow.

The length of the pipe section to be cut is variable, and in order to be capable of adaptively adjusting the positions of the outer suction pipe and the inner shovel, the deslagging mechanism also comprises an A support table, an A positioner, a B driver, a B support table and a B positioner, wherein the A support table is arranged on the A slide rail and can slide under the driving of the A driver, the A positioner and the B driver move along with the A support table, the B support table is driven by the B driver to move, and the B positioner is arranged on the B support table and can move along with the B support table; the number C module is provided with a through hole capable of avoiding the outer suction pipe, the rear end of the outer suction pipe is connected to the number A positioner, and the front end of the outer suction pipe can continuously extend forwards after penetrating through the through hole of the number C module so as to support the outer suction pipe by means of the number C module; the rear end of an inner rod connected with the inner shovel is connected to the No. B positioner, and the front end of the inner rod extends forwards in the outer straw. According to the technical scheme, the driver A can drive the outer suction pipe and the inner shovel to move and adjust positions at the same time, and on the basis, the driver B can drive the inner shovel to move relative to the outer suction pipe to complete slag shoveling. In addition, the front end of the outer suction pipe is supported by the C-shaped module, so that the front end of the outer suction pipe is prevented from being excessively dropped, bent and deformed and cannot be accurately inserted into a cut pipe.

The technical scheme is that the deslagging mechanism further comprises a lifting device, and the lifting device is used for adjusting the high-low positions of the A positioner and the B driver so as to enable the outer suction pipe to be adapted to cut pipes with different inner diameters. The lifting device can be arranged on the support table A, and the positioner A and the driver B are arranged on the lifting device; or the A positioner and the B driver are directly arranged on the A support platform, the A support platform is arranged on the lifting device, and the lifting device adjusts the height positions of the A positioner and the B driver through the A support platform.

Drawings

FIG. 1 is a schematic perspective view of a laser cutting machine for pipes with a deslagging mechanism according to the technical scheme of the invention;

FIG. 2 is a schematic diagram of the pipe laser cutting machine in a cutting state, wherein the inner blade is shown in a first embodiment;

fig. 3 is a schematic structural view in a front view of the slag removal mechanism 100;

fig. 4 is a perspective view of the deslagging mechanism 100;

fig. 5 is a schematic cross-sectional view of the lead screw linear driving module 300;

fig. 6 is a structural schematic diagram of the slag removing mechanism 100 in a right view direction, wherein a broken line part represents the lead screw linear driving module 300;

FIG. 7 is a schematic diagram of the laser cutting machine for pipe material in a cutting state, wherein the inner blade is shown in a second embodiment;

fig. 8 is a schematic perspective view of the driving device No. C500;

fig. 9 is an exploded view of the driving device No. C500;

fig. 10 is a schematic structural view of the material preparation apparatus 700.

Detailed Description

The pipe laser cutting machine with the deslagging mechanism applying the technical scheme of the invention is further described with reference to the attached drawings.

As shown in fig. 1 and fig. 2, a pipe laser cutting machine including a slag removal mechanism is proposed, which includes a main frame 1, a pipe conveying mechanism 11 disposed on the main frame 1, a laser head 2, and a pipe holder 6, wherein the pipe conveying mechanism 11 is used for conveying a cut pipe, the laser head 2 is used for emitting a laser beam to cut off the pipe, and the pipe holder 6 is used for holding and driving the cut pipe 10 to rotate; the pipe fitting machine further comprises a No. A driver 33 and a No. C driver 50 which are arranged on the main rack 1, and a No. A slide rail 36 and a No. C slide rail 51 which are respectively positioned and connected on the main rack 1 and are arranged in parallel along the moving direction of a pipe; a No. C module 5 which can move under the driving of the No. C driver 50 is arranged on the No. C slide rail 51 in a sliding way, and the No. C module 5 is positioned in front of the cut pipe 10 and used for determining the extending length of the cut pipe; and a deslagging mechanism 100 which can move under the driving of the A driver 33 is arranged on the A slide rail 36 in a sliding manner, and the deslagging mechanism 100 is arranged in front of the feeding direction of the tube conveying mechanism 11 and is used for removing condensed metal slag generated after the laser head 2 works.

The number C slide rail 51 and the number a slide rail 36 are respectively positioned and connected on the main frame 1 and are arranged in parallel to each other along the moving direction of the pipe. Thus, the positions of the slide rails 36 and 51 are fixed relative to the main frame 1, and their positions on the main frame 1 do not change with the sliding of the C-block 5 and the deslagging mechanism 100. Under the condition of not blocking the sliding of the C-number module 5, the position of the deslagging mechanism 100 is not restrained by the C-number module 5 to change. When dross removal mechanism 100 is located No. C module 5 is to keeping away from during the gliding stroke of direction of laser head 2, need pass through in advance No. A driver 33 drive dross removal mechanism 100 slides and dodges No. C module 5, certainly in other embodiments, can utilize No. C module 5 drives dross removal mechanism 100 continues to keeping away from laser head 2's direction slides. According to the above technical solution, the C-module 5 and the deslagging mechanism 100 are relatively and independently slidable, that is, the sliding of the C-module 5 does not cause the deslagging mechanism 100 to follow the sliding under the condition that the deslagging mechanism 100 does not obstruct the sliding of the C-module 5. Before the tube is cut for the first time, the deslagging mechanism 100 and the C-shaped module 5 can be driven by the A-shaped driver 33 and the C-shaped driver 50 respectively to slide and be adjusted to be in the correct working position. Before cutting tubular product next time, if the extension length of cutting tubular product changes, then deslagging mechanism 100 does not block under the condition that No. C module 5 slided, only need readjust No. C module 5's position, and need not readjust deslagging mechanism 100's position, so shortened the preset time before tubular product cutting processing, be favorable to improving production efficiency.

As shown in fig. 2, the slag removing mechanism 100 comprises a hollow outer suction pipe 3, a side wall notch 30 is arranged on the pipe side wall of one section of the outer suction pipe 3, the outer suction pipe 3 is used for being inserted into the cut pipe 10 when the current cutting task is started, and the side wall notch 30 of the outer suction pipe 3 is used for not only facing the laser head 2 but also being positioned right in front of the irradiation direction of the laser beam when the current cutting task is started; an air suction channel 40 is arranged in the outer suction pipe 3, and the air suction channel 40 is used for sucking air in the outer suction pipe 3; an inner shovel 41 capable of moving relative to the outer suction pipe 3 is further arranged in the outer suction pipe 3, and the inner shovel 41 is used for shoveling away the condensed metal slag remained in the outer suction pipe 3.

In the cutting process, the side wall notch 30 of the outer suction pipe 3 is inserted into the cut pipe 10, faces the laser head 2 and is positioned right ahead of the irradiation direction of the laser beam, so that when most of molten metal drops at the notch of the cut pipe 10 drop downwards, the molten metal drops into the pipe cavity of the outer suction pipe 3 through the side wall notch 30 and cannot drop onto the inner side wall of the cut pipe 10, the side wall notch 30 serves as a feed port for receiving the molten metal drops, and the outer suction pipe 3 serves as a waste residue container for containing the molten metal drops. Next, the suction passage 40 is used for sucking air in the outer suction pipe 3, so that a negative pressure is formed in the outer suction pipe 3, and air in the vicinity of the side wall gap 30 is sucked, thereby forming a structure capable of sucking molten metal droplets or condensed metal slag in the vicinity of the cut pipe material into the outer suction pipe 3 through the side wall gap 30 and further discharging the outer suction pipe 3. In addition, the flowing air formed in the outer suction pipe 3 by the air suction channel 40 absorbs the heat of the molten metal drops, so that part of the molten metal drops can be cooled and solidified quickly in the air preferentially, and the quantity of condensed metal slag condensed on the inner side wall of the outer suction pipe 3 is reduced.

In the cutting process, the high-temperature molten metal drops are very easy to drop on the peripheral wall body of the side wall notch 30, solidify and adhere to the peripheral wall body, so that the side wall notch 30 is narrowed or even blocked. Thus, by utilizing the high-efficiency heat dissipation characteristic of the copper material, the heat stored in the peripheral wall body of the side wall opening 30 is very small, so that the condensed metal slag solidified in the dripping process can be prevented from contacting the peripheral wall body of the side wall opening 30, absorbing a large amount of heat on the peripheral wall body of the side wall opening 30, then being remelted and adhered to the peripheral wall body of the side wall opening 30, and therefore the pipe section of the side wall opening 30 is made of the copper material, so that the condensed metal slag solidified on the peripheral wall body of the side wall opening 30 can be reduced. In addition, the high temperature resistance of the copper material can be utilized, the difficulty of thermal cracking of the peripheral wall body of the side wall notch 30 is increased, and the service life of the pipe section of the side wall notch 30 is effectively prolonged. Furthermore, the front end part 31 of the outer suction pipe 3 is sealed, and the side wall notch 30 is close to the front end part of the outer suction pipe 3. This is advantageous in that the suction power of the outer suction tube 3 is maintained constant, and the suction force of the air flow in the vicinity of the side wall gap 30 is intensified.

As shown in fig. 3, 4, 5 and 6, the length of the pipe segment to be cut is variable, and in order to adapt to and adjust the position of the outer suction pipe 3, the pipe cutting machine further comprises a number a support table 34 which is slidably arranged on the number a slide rail 36 and can move under the driving of the number a driver 33, and a number a positioner 35 which is mounted on the number a support table 34 and can move along with the number a support table 34. And the No. C module 5 is provided with a through hole 501 capable of avoiding the outer suction pipe 3. The rear end of the outer suction pipe 3 is connected to the positioner No. a 35, and the front end of the outer suction pipe 3 can continue to extend forwards, i.e. in the direction of the cut pipe 10, after passing through the through hole 501 of the module No. C5, so that the outer suction pipe 3 can be supported by the module No. C5. Specifically, the support platform a 34 includes a support main frame 341 and a support plate 342, and the positioner a 35 is fixedly connected to the support plate 342 through a bolt. The No. a locator 35 has a pair of clamping arms (351, 352), a clamping opening is formed between the pair of clamping arms (351, 352), the rear end of the outer straw 3 extends into the clamping opening, and the bolt is connected to the pair of clamping arms (351, 352) to tighten the clamping opening so that the rear end of the outer straw 3 is stably connected to the No. a locator 35. An adjusting boss 3411 is arranged on the supporting main frame 341, an adjusting nut 344 is fixedly connected to the adjusting boss 3411, and an adjusting bolt 343 is screwed with the internal thread of the adjusting nut 344 through the adjusting boss 3411 and the tail end of the adjusting bolt is pressed against the supporting plate 342. When the adjusting bolt 343 is rotated, the adjusting bolt 343 can move to the right in the Z-axis direction so as to push the supporting plate 342 and adjust the position of the support platform No. a 34, so that the position of the outer suction pipe 3 in the Z-axis direction can be adjusted, and the outer suction pipe 3 can be adapted to the cut pipes 10 with different inner diameters.

As shown in fig. 5, in the present embodiment, the a-side slide rail 36 is a transmission screw, a driving nut 361 is screwed to the a-side slide rail 36, and the driving nut 361 is connected to the a-side support base 34. The a slide rail 36 and the driving nut 361 are accommodated in the outer shell 37, the a driver 33 is arranged outside the outer shell 37, and the a driver 33 is a driving motor and is used for driving the transmission screw rod to rotate so as to drive the driving nut 361 to slide on the transmission screw rod. The a slide rail 36, the driving nut 361, the outer shell 37 and the a driver 33 are assembled into a screw rod linear driving module 300. In other embodiments, the a-slide rail may also take other structural forms, for example, it may be a linear guide rail.

As shown in fig. 6, a lifting device 200 is further disposed between the lead screw linear driving module 300 and the support platform a 34, the support platform a 34 is disposed on the lifting device 200, and the lifting device 200 is configured to adjust the high and low positions of the positioner a 35 and the driver B42, which will be discussed below, through the support platform a 34, so as to adapt the outer suction pipe 3 to cut pipes with different inner diameters. Specifically, the lifting device 200 includes a transition mounting platform 201 mounted on the driving nut 361 of the lead screw linear driving module 300, a static lifting platform 202 fixedly connected to the transition mounting platform 201, and a movable lifting platform 203 slidably disposed on the static lifting platform 202, and the support platform 34 a is fixedly connected to the movable lifting platform 203. A lifting driving bolt 204 and a lifting driving nut (not shown in the figure) in threaded transmission connection with the lifting driving bolt 204 are arranged on the static lifting platform 202, and the lifting driving nut can drive the movable lifting platform 203 to slide up and down relative to the static lifting platform 202. A driving handle 205 for driving the lifting driving bolt 204 to rotate is further arranged at the tail end of the lifting driving bolt 204. Of course, in other embodiments, the lifting device may also take other structural forms and be disposed on the support platform 34 a, the positioner 35 a and the driver 42B are disposed on the lifting device 200, and the elevation positions of the positioner 35 a and the driver 42B can be adjusted by the lifting device 200.

As shown in fig. 2, the suction device further comprises a rod-shaped inner rod 4, the suction channel 40 is arranged in the inner rod 4, the inner rod 4 is inserted into the outer suction pipe 3, the front end of the inner rod 4 extends forwards in the outer suction pipe 3, and the front end face of the inner rod 4 directly forms the inner shovel 41. In the present embodiment, the inner blade 41 is directly formed by obliquely cutting the tip of the inner rod 4 to form an inclined tip end surface portion, and in this case, the inner blade 41 has an arc-shaped blade portion, and the inner blade 41 and the inner rod 4 are integrally formed. The outer suction pipe 3 is further provided with a stopper 32, the stopper 32 extends into the outer suction pipe 3, and the stopper 32 is used for pushing the inner shovel 41 to be biased towards the direction irradiated by the laser beam so as to shovel off condensed metal slag remained on the inner wall 39 of the pipe on the side of the outer suction pipe 3 facing the laser direction. That is, when the inner blade 41 moves, the stopper 32 can push the inner blade 41 to be biased to one side of the outer suction pipe 3 as much as possible to remove the condensed slag remaining on the inner wall 39 of the pipe on the side of the outer suction pipe 3 facing the laser beam direction. Since the most condensed metal residues remain on the inner wall 39 of the tube on the side facing the laser direction after laser cutting. In this embodiment, the stopper 32 is a screw and is pressed against the shovel bottom wall 411 of the inner shovel 41. Of course, in other embodiments, the stop 32 can also bear directly against the inner rod 4. The thread sucking device further comprises a thread sucking head 45, the thread sucking channel 40 is communicated with the thread sucking head 45, and the thread sucking head 45 is used for sucking air in the thread sucking channel 40 by means of oblique jet air flow.

The structure of the inner shovel is various, and the structure shown in fig. 7 can also be adopted. As shown in fig. 7, an inner rod 4a is inserted into the outer suction tube 3, and a suction passage 40a is disposed between the inner rod 4a and the outer suction tube 3. The inner shovel 41a is arranged at the front end of the inner rod 4, the inner shovel 41a and the inner rod 4a are of a split structure, the inner shovel 41a is disc-shaped and is provided with a plurality of air through holes 410a, and the inner shovel 41 is provided with blades which are arranged in a circular ring shape. The outer diameter of the inner shovel 41a is slightly smaller than the inner diameter of the outer suction pipe 3, and the inner shovel 41a moves to clean condensed metal slag remained on the inner wall of the outer suction pipe 3. Wherein the outer diameter of the inner blade 41a is slightly smaller than the inner diameter of the outer suction pipe 3, the above characteristics define that the outer diameter of the inner blade 41a is not only smaller than the inner diameter of the outer suction pipe 3, but also the difference in radial dimension between them is very small, so that the inner blade 41a can basically abut against the inner wall of the outer suction pipe 3 to clean the condensed slag over a large area, optimizing the slag shoveling capacity of the inner blade 41 a.

In order to adjust the position of the inner shovel 41, as shown in fig. 3 and 4, the pipe cutting device further includes a B-type driver 42, a B-type support table 43 driven by the B-type driver 42 to move, and a B-type positioner 44 mounted on the B-type support table 43 and capable of moving with the B-type support table 43, wherein the rear end of the inner rod 4 of the inner shovel 41 is connected to the B-type positioner 44, and the front end of the inner rod 4 extends forward in the outer suction pipe 3, i.e., in the direction of the pipe 10 to be cut. The B driver 42 is mounted on the a support table 34 and is movable with the a support table 34. According to the above technical solution, the driver 33 a can simultaneously drive the outer suction pipe 3 and the inner shovel 41 to move in the X-axis direction for adjusting the position, and on this basis, the driver 42B can also drive the inner shovel 41 to move in the X-axis direction relative to the outer suction pipe 3 to complete the operation of shoveling the condensed metal slag in the outer suction pipe 3.

According to the technical scheme, the air suction channel 40 is arranged in the outer suction pipe 3, and the inner shovel 41 capable of moving relative to the outer suction pipe 3 is also arranged in the outer suction pipe 3, so that the condensed metal slag adhered in the inner suction pipe 3 can be timely and effectively shoveled by the inner shovel 41, and a favorable clearing basis is provided for the work of sucking the condensed metal slag by the air suction channel 40. On the basis, the condensed metal slag can be easily discharged out of the outer suction pipe 3 by the suction airflow of the suction passage 40, so that the outer suction pipe 3 is effectively prevented from being completely blocked by excessive accumulation of the condensed metal slag, the smoothness of the flow of the suction airflow in the outer suction pipe 3 can be maintained, and the slag discharge capacity is optimized. In addition, with the help of the inner shovel 41, the requirement on the suction force of the suction channel 40 is relatively reduced, so that the suction force in the chip removing pipe is not required to be enhanced to strengthen the slag removing capability in a manner of blocking the pipe inner cavity of the cut pipe by the chip removing pipe like in the prior patent CN201811519948.2, the invention does not require a sealing structure between the outer suction pipe 3 and the cut pipe 10 nor the requirement that the outer diameter dimension of the inner shovel 41 is required to be consistent with the inner diameter dimension of the outer suction pipe 3, greatly reduces the manufacturing difficulty of the outer suction pipe 3 and the inner shovel 41, simplifies the structure of the slag removing mechanism 100, enables the outer suction pipe 3 with one outer diameter dimension to be suitable for the cut pipes with various inner diameter dimensions, and greatly improves the universality.

As shown in fig. 1, 8 and 9, the No. C driver 50, the No. C slide rail 51 and the No. C module 5, which is slidably disposed on the No. C slide rail 51 and is driven by the No. C driver 50 to move, constitute a No. C driving device 500. The C-drive device 500 further includes a slide-mounting block 55 and a mounting table 52 fixedly connected to the slide-mounting block 55. The C-shaped driver 50 is slidably arranged on the C-shaped sliding rail 51 through the sliding mounting block 55. A height adjuster 53 is further arranged on the mounting table 52, the C-module 5 is mounted on the height adjuster 53 through a transition connecting plate 54, and the height position of the C-module 5 can be adjusted through the height adjuster 53. Further, a sensor or a sensing electrode (not shown in the figure) is arranged at the vertical position 502 of the module C5 for determining the extending length of the cut pipe, and the sensor or the sensing electrode is used for contacting the cut pipe 10 and picking up the contact signal and then transmitting the contact signal to a controller (not shown in the figure). Wherein the facade location 502 is facing the pipe 10 being cut. The controller can know whether the cut pipe 10 extends out of the specified length, so that the controller can be configured to control the laser head 2 to cut after the cut pipe 10 extends out of the specified length, and the cutting length of the pipe is ensured.

The main frame 1 is further provided with a guide device (not shown in the figure), the guide device is positioned below the laser head 2 and used for discharging and guiding the cut pipes, and the main frame further comprises a storage bin (not shown in the figure), and the storage bin is positioned below the guide device and used for receiving the pipes rolled off from the guide device. According to the technical scheme, the cut pipe materials automatically enter the storage bin under the unloading guide of the guide device.

As shown in fig. 10, the tube laser cutting machine further includes a material preparing device 700, the material preparing device 700 is configured to prepare the cut tubes for the tube conveying mechanism 11, the material preparing device 700 includes a material preparing support body 7, at least one pair of material containing rollers 71 rotatably disposed on the material preparing support body 7, and a material receiving curved arm 72 swingably disposed on the material preparing support body 7, all of the material containing rollers 71 are arranged in a conveying direction of the cut tubes and are configured to transfer the cut tubes 10a supplied by the material receiving curved arm 72, and the material receiving curved arm 72 is configured to receive the cut tubes 10a and to transfer the received cut tubes 10a onto the material containing rollers 71 in a swinging manner. Specifically, the stock preparation support body 7 is provided with three material containing rollers 71 (only one of which is shown in the figure), the material containing rollers 71 are arranged at intervals, and a pair of material receiving bent arms 72 are swingably provided on the stock preparation support body 7 through a support shaft 73 and are respectively located above a spacing space between an adjacent pair of the material containing rollers 71. A curved arm driver (not shown in the figure) for driving the material receiving curved arm 72 to rotate is further arranged on the material preparing bracket body 7. In the material preparing process, the cut pipes are placed on the material receiving bent arm 72 in advance, then the bent arm driver drives the material receiving bent arm 72 to swing around the supporting shaft 73 to enter an interval space between a pair of adjacent material containing rollers 71 below the material receiving bent arm 72, so that the cut pipes 10a received by the material receiving bent arm 72 are transposed to the material containing rollers 71, and meanwhile, the cut pipes 10a also fall onto the pipe conveying mechanism 11.

The deslagging method of the pipe laser cutting machine is described as follows: when the secondary cutting task is started, the pipe holder 6 drives the cut pipe 10 to rotate, air in the outer suction pipe 3 is sucked through the air suction channel 40, the pipe section of the outer suction pipe 3 comprising the side wall notch 30 is inserted into the cut pipe 10, the side wall notch 30 faces the laser head 2 and is positioned right in front of the irradiation direction of the laser beam, and the inner shovel 41 avoids the area, which can be irradiated by the laser beam, in the side wall notch 30; after the secondary cutting task is completed, the driver B42 drives the inner shovel 41 to move relative to the outer suction pipe 3 in the area irradiated by the laser beam in the outer suction pipe 3, and condensed metal slag remained in the outer suction pipe 3 is removed. After the secondary cutting task is completed, the air in the outer suction pipe 3 can be continuously sucked through the air suction channel 40 to discharge the condensed metal slag scooped up by the inner shovel 41, or the air in the outer suction pipe 3 is sucked through the air suction channel 40 to discharge the condensed metal slag scooped up by the inner shovel 41 only at the time of the next cutting task. In other embodiments, the inner shovel 41 may be kept stationary, and the outer suction pipe 3 may be driven to move relative to the inner shovel 41 to remove the condensed slag remaining in the outer suction pipe 3.

In order to suck as much molten metal droplets or condensed metal slag formed at the cut of the cut pipe 10 into the outer suction pipe 3 as possible, the outer suction pipe 3 is brought into close contact with the cut pipe 10 in the direction of the laser head 2 at the time of the secondary cutting task, as shown in fig. 2. In this embodiment, the outer suction pipe 3 is offset in the cut pipe 10, and a slight gap exists between the outer top wall 38 of the outer suction pipe 3 on the side close to the laser head 2 and the inner top pipe wall 101 of the cut pipe 10 on the side close to the laser head 2. In this way, the side wall notch 30 is also close to the cut pipe 10, which is beneficial to strengthening the air draft formed in the area near the side wall notch 30, and can store the molten metal droplets or condensed metal slag into the outer suction pipe 3 as early as possible, so as to avoid splashing of the molten metal droplets or condensed metal slag around the outer suction pipe 3. Of course, in other embodiments, the outer top wall 38 of the outer suction tube 3 may also be in close contact with the inner top tube wall 101 of the cut tube 10 so that the distance between them is zero.

Claims (10)

1. The pipe laser cutting machine comprises a main frame, a pipe conveying mechanism and a laser head, wherein the pipe conveying mechanism and the laser head are arranged on the main frame; the pipe fitting machining device is characterized by further comprising a No. A driver, a No. C driver, a No. A sliding rail and a No. C sliding rail, wherein the No. A driver and the No. C driver are arranged on the main rack, and the No. A sliding rail and the No. C sliding rail are respectively positioned and connected to the main rack and are arranged in parallel along the moving direction of a pipe; a No. C module capable of moving under the driving of the No. C driver is arranged on the No. C sliding rail in a sliding mode and used for determining the extending length of the cut pipe; a slag removal mechanism capable of moving under the driving of the driver A is arranged on the slide rail A in a sliding mode and used for removing condensed metal slag generated after the laser head works.

2. The laser cutting machine for pipes as claimed in claim 1, wherein a guide device is further provided on the main frame, the guide device is located below the laser head for discharging and guiding the cut pipe, and a bin is located below the guide device for receiving the pipe rolled off from the guide device.

3. The pipe laser cutting machine according to claim 1, wherein a sensor or a sensing electrode is arranged at a vertical position of the module C for determining the extending length of the cut pipe, and the sensor or the sensing electrode is used for contacting the cut pipe and picking up the contact signal and then transmitting the contact signal to the controller.

4. The laser cutting machine for the pipes according to the claim 1, 2 or 3, characterized in that the deslagging mechanism comprises a hollow outer suction pipe, the side wall of one section of the outer suction pipe is provided with a side wall gap, the outer suction pipe is used for being inserted into the cut pipes when the current cutting task is started, and the side wall gap of the outer suction pipe is used for not only facing the laser head but also being positioned right in front of the irradiation direction of the laser beam when the current cutting task is started; an air suction channel is arranged in the outer suction pipe and is used for sucking air in the outer suction pipe; an inner shovel which can move relative to the outer suction pipe is further arranged in the outer suction pipe, and the inner shovel is used for shoveling the residual condensed metal slag in the outer suction pipe.

5. The laser pipe cutting machine according to claim 4, wherein the slag removing mechanism further comprises a rod-shaped inner rod, the inner rod is inserted into the outer suction pipe, the suction channel is arranged in the inner rod or between the inner rod and the outer suction pipe, and the inner shovel is arranged at the front end of the inner rod or the front end face of the inner rod and directly forms the inner shovel.

6. The pipe laser cutting machine of claim 4, wherein the outer diameter dimension of the inner shovel is slightly smaller than the inner diameter dimension of the outer suction pipe.

7. The laser cutting machine for pipes according to claim 4, wherein the front end of the outer suction pipe is sealed off, and the side wall gap is close to the front end of the outer suction pipe.

8. The pipe laser cutting machine according to claim 4, further comprising a suction head, wherein the suction channel is communicated with the suction head, and the suction head is used for extracting air in the suction channel by means of oblique jet air flow.

9. The pipe laser cutting machine according to claim 5, wherein the deslagging mechanism further comprises a support table a, a positioner a and a driver B, a support table B, and a positioner B, wherein the support table a is arranged on the slide rail a and can slide under the drive of the driver a; the number C module is provided with a through hole capable of avoiding the outer suction pipe, the rear end of the outer suction pipe is connected to the number A positioner, and the front end of the outer suction pipe can continuously extend forwards after penetrating through the through hole of the number C module so as to support the outer suction pipe by means of the number C module; the rear end of an inner rod connected with the inner shovel is connected to the No. B positioner, and the front end of the inner rod extends forwards in the outer straw.

10. The pipe laser cutting machine according to claim 9, wherein the deslagging mechanism further comprises a lifting device, and the lifting device is used for adjusting the high and low positions of the A positioner and the B driver so as to adapt the outer suction pipe to the cut pipes with different inner diameter sizes.

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