A three-chuck laser tube cutting system

Abstract

The invention relates to the technical field of laser cutting, and discloses a three-chuck laser tube cutting system, comprising a three-chuck laser tube cutting machine, a feeding device and a receiving device, wherein the feeding device comprises a plurality of feeding racks arranged at intervals, a plurality of material storage stations respectively arranged on the upper parts of the plurality of feeding racks, and a multi-stage stroke support mechanism; the receiving device comprises a plurality of material rack modules arranged at intervals and a plurality of material unloading racks; by arranging a three-chuck laser tube cutting machine for clamping and cutting tubes, a plurality of material storage stations for storing tubes, a plurality of material receiving modules and a plurality of material unloading racks, the system is suitable for loading and unloading tubes of different lengths; the feeding device and the receiving device are both provided with an up and down follow-up support function, so as to realize a two-stage ascending or descending support stroke with a minimum compression ratio, and can realize a larger stroke in a narrow space, so as to be suitable for the feeding and unloading height requirements of the three-chuck laser tube cutting machine, and is conducive to the rational use of space.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to a three-chuck laser tube cutting system. Background Art

[0002] Laser cutting has been widely used in cutting pipes or profiles. For the processing and cutting of large and heavy pipes, it is generally necessary to equip a loading device and a unloading device to assist in the loading of pipes and the unloading after the processing and cutting, so as to reduce labor intensity, improve production efficiency and improve the accuracy of loading and unloading. For example, the Chinese patent with the publication number CN 214815777U discloses a vertical pipe laser cutting machine system, including a laser cutting machine and loading and unloading equipment. The loading and unloading equipment are both provided with a follow-up feeding mechanism. The follow-up feeding mechanism drives the positioning assembly to rise or fall through the first jacking assembly, and the second jacking assembly drives the supporting assembly to rise or fall. Although the above-mentioned follow-up feeding mechanism can support the pipe with servo, the movement stroke of the above-mentioned structure to rise or fall is short, and a larger movement stroke cannot be achieved, and it is difficult to meet the height requirements of the laser pipe cutting machine for loading and unloading.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a three-chuck laser tube cutting system, aiming to improve the compression ratio of the loading device and the unloading device in the existing three-chuck laser tube cutting system and achieve a larger moving stroke.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A three-chuck laser tube cutting system comprises a three-chuck laser tube cutting machine, a feeding device and a material receiving device arranged behind the three-chuck laser tube cutting machine, characterized in that the feeding device comprises a plurality of feeding racks arranged at intervals, a plurality of material storage stations respectively arranged on the upper parts of the plurality of feeding racks and arranged along the length direction thereof, and a multiple-segment stroke support mechanism, wherein the multiple-segment stroke support mechanism comprises a transverse sliding plate which can slide back and forth laterally on the side wall of the feeding rack, a first-stage lifting sliding plate which can be lifted up and down on the transverse sliding plate, a second-stage lifting sliding plate which can be lifted up and down on the first-stage lifting sliding plate, a transverse driving component for driving the transverse sliding plate to move laterally, a first-stage lifting component for driving the first-stage lifting sliding plate to rise or fall, a second-stage lifting component for driving the second-stage lifting sliding plate to follow the first-stage lifting sliding plate to rise or fall, and a second-stage lifting component arranged on the second-stage lifting sliding plate A material receiving component on a section lifting slide, the material receiving component is used to support pipes; the material receiving device includes a plurality of material rack modules arranged at intervals and a plurality of material unloading racks arranged at intervals behind the plurality of material rack modules, each material receiving module includes a material receiving base frame, a fixed plate arranged on the material receiving base frame, a section of movable plate which can be lifted up and down on the fixed plate, a second section of movable plate which can be lifted up and down on the first section of movable plate, a first section of material receiving component for driving the first section of movable plate to be lifted up and down, and a second section of material receiving component for driving the second section of movable plate to be lifted up and down following the lifting of the first section of movable plate, a material receiving plate is hinged on the top of the second section of movable plate, and a material receiving drive component is arranged on the second section of movable plate for driving the material receiving plate to support the pipe when it is horizontal or to guide the pipe to the unloading rack located behind the material receiving base frame when it is tilted backward.

[0007] Beneficial effects:

[0008] The invention provides a three-chuck laser tube cutting system, which is provided with a three-chuck laser tube cutting machine for clamping and cutting tubes, a plurality of material storage stations for storing tubes, a transverse driving component for driving a transverse sliding plate to move transversely, a one-stage lifting component for driving a one-stage lifting plate to rise or fall, a two-stage lifting component for driving a two-stage lifting plate to rise or fall when following a one-stage lifting plate, and a material receiving component for supporting tubes; a plurality of material receiving modules and a plurality of material unloading racks are provided, which are suitable for unloading tubes of different lengths; a material receiving bottom rack for installing a fixed plate, a one-stage material receiving component for driving a one-stage movable plate to rise or fall, a two-stage material receiving component for driving a two-stage movable plate to rise or fall when following a one-stage movable plate to rise or fall, and a material receiving driving component for making the material receiving plate horizontal or inclined are provided, so that both a feeding device and a feeding device have an up and down follow-up supporting function, realize a supporting stroke with a minimum compression ratio of two-stage rise or fall, can realize a larger stroke in a narrow space, is convenient for the feeding and unloading height requirements of the three-chuck laser tube cutting machine, and is conducive to the rational use of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of the three-chuck laser tube cutting system provided by the present invention.

[0010] Figure 2 This is a schematic diagram of the structure of the three-chuck laser tube cutting system after clamping the tube.

[0011] Figure 3 It is a structural schematic diagram of the feeding device.

[0012] Figure 4 It is the left view of the multi-stage travel support mechanism when the two-stage lifting slide plate is rising.

[0013] Figure 5 The structural diagram of the multi-stage travel support mechanism when the two-stage lifting slide plate rises Figure 1 .

[0014] Figure 6 The structural diagram of the multi-stage travel support mechanism when the two-stage lifting slide plate rises Figure 2 .

[0015] Figure 7 It is an exploded view of the multi-stage travel support mechanism when the two-stage lifting slide plate is rising.

[0016] Figure 8 The schematic diagram of the structure of the multi-stage travel support mechanism when the two-stage lifting slide is descending Figure 1 .

[0017] Fig. 9 The schematic diagram of the structure of the multi-stage travel support mechanism when the two-stage lifting slide is descending Figure 2 .

[0018] Fig.10 It is a schematic diagram of the partial structure of the first feeding positioning block and the feeding adjustment block.

[0019] Fig.11 It is a schematic structural diagram of a single feeding device.

[0020] Fig.12 It is a structural schematic diagram of the material storage station.

[0021] Fig.13 It is a structural schematic diagram of the material receiving device.

[0022] Fig.14 It is a schematic diagram of the local structure of the material receiving device.

[0023] Fig.15 This is a schematic diagram of the structure of one of the material receiving modules.

[0024] Fig.16 This is an exploded view of one of the material connection modules.

[0025] Fig.17The local structure of the material receiving module during the second stage of ascent is shown in FIG. Figure 1 .

[0026] Fig.18 for Fig.17 Enlarged view of the middle L part.

[0027] Fig.19 The local structure of the material receiving module during the second stage of ascent is shown in FIG. Figure 2 .

[0028] Fig. 20 It is an exploded view of the material receiving module during the second stage of ascent.

[0029] Fig.21 It is a schematic diagram of the partial structure of the material receiving module during the second-stage descent.

[0030] Fig. 22 This is a schematic diagram of the structure of the No. 1 receiving module (the leftmost receiving module).

[0031] Fig.23 This is a schematic diagram of the structure of a three-chuck laser tube cutting machine.

[0032] Fig.24 It is a structural schematic diagram of the exhaust mechanism.

[0033] Fig.25 It is a schematic structural diagram of the first chuck.

[0034] Fig.26 It is a schematic diagram of the structure of the second chuck.

[0035] Fig. 27 Schematic diagram of the local structure of the base Figure 1 .

[0036] Fig.28 Schematic diagram of the local structure of the base Figure 2 .

[0037] Fig.29 Schematic diagram of the structure of the laser cutting component.

[0038] Fig.30 It is a schematic diagram of the local structure of the transverse drive motor.

[0039] Description of main component symbols:

[0040] A-laser cutting assembly, A1-crossbeam bracket, A11-transverse rack, A12-transverse slide rail, A13-transverse slider, A2-transverse slide bracket, A3-transverse drive motor, A4-reducer, A5-spline, A6-transverse gear, A10-laser cutting head;

[0041] B-feeding device, B1-feeding rack, B112-second in-position sensor, B143-base anti-collision seat, B100-storage station, B101-discharging material warehouse, B102-hook-shaped slot, B110-travel switch, B200-multi-segment travel support mechanism, B2-transverse slide, B21-a limit block, B22-a anti-collision seat, B23-first feeding threaded hole, B24-in-position sensor sheet, B25-feeding anti-collision block, B3- One section lifting slide, B31-first in-position sensor, B32-second in-position sensor, B33-second lifting slide rail, B34-second lifting slider, B4-second lifting slide, B41-sensor plate, B42-second limit block, B43-second anti-collision seat, B5-transverse drive assembly, B51-transverse motor, B52-transverse gear, B53-transverse rack, B54-second transverse slider, B55-second transverse slide rail, B6-one Section lifting assembly, B61-a section lifting motor, B62-lifting rack, B63-a section lifting rail, B64-a section lifting slider, B7-two section lifting assembly, B71-first feeding positioning block, B711-feeding waist hole, B712-third feeding threaded hole, B72-second feeding positioning block, B73-feeding positioning shaft, B74-feeding sprocket, B75-feeding chain, B76-feeding adjustment block, B761-feeding through hole, B762-second feeding threaded hole, B77-feeding adjustment screw, B78-feeding lifting screw, B8-material bearing assembly, B81-feeding bearing seat, B82-feeding rolling shaft, B9-clamping positioning assembly, B91-cylinder support, B92-clamping cylinder, B93-traction block, B94-pull rod, B95-clamping block, B96-first transverse slide rail, B97-first transverse slider, B98-clamping lifting slide rail, B99-elastic part;

[0042] C-material receiving device, C100-material receiving module, C200-material unloading rack, C201-blocking column, C202-buffer rubber pad, C203-burst bolt hole, C1-material receiving base frame, C11-first position sensor, C12-second position sensor, C2-fixed plate, C21-a section of material receiving slide rail, C22-a section of material receiving slider, C23-a section of limit seat, C3-a section of movable plate, C31-first sensor sheet, C32-material receiving motor Mounting plate, C321-second adjustment waist hole, C322-fourth threaded hole, C33-engagement adjustment block, C331-first through hole, C332-fifth threaded hole, C34-adjusting screw, C35-second limit screw, C4-second section movable plate, C41-second section material receiving slide rail, C42-second section material receiving slider, C43-first and second section limit seat, C44-first and second section anti-collision block, C45-second and second section anti-collision block, C46-second and second Section limit seat, C47-second induction plate, C48-material receiving height adjustment plate, C49-material receiving height adjustment block, C5-a section receiving assembly, C51-a section receiving drive motor, C52-material receiving transmission rack, C6-a second section receiving assembly, C61-the first receiving positioning block, C611-the first adjustment waist hole, C62-the second receiving positioning block, C63-material receiving bearing seat, C64-rotating shaft, C65-material receiving sprocket, C66-material receiving chain Strip, C67-tension adjustment block, C671-second threaded hole, C68-first limit screw, C7-material receiving plate, C71-material bearing seat, C72-heavy-load roller, C73-short material hopper, C8-material receiving drive assembly, C81-material receiving seat, C82-hinge seat, C9-material head folding plate, C91-material head bearing seat, C92-material head rotating shaft, C93-material head cylinder, C94-material head hopper, C95-laser air avoidance port;

[0043] D-three-chuck laser tube cutting machine, 100-base, 101-C-shaped block, 1011-first splicing through hole, 102-splicing positioning block, 1021-first splicing threaded hole, 103-first L-shaped block, 1031-second splicing through hole, 104-second L-shaped block, 1041-third splicing through hole, 105-wiring hole;

[0044] 200-first chuck, 300-second chuck, 400-third chuck;

[0045] 500-sliding mechanism, 501-sliding drive motor, 502-sliding rack, 503-sliding rail, 504-sliding slider, 505-anti-collision seat;

[0046] 600-exhaust mechanism, 601-exhaust port, 602-exhaust box, 603-exhaust hole, 604-exhaust interface;

[0047] 700-steering mechanism, 701-side slide, 702-steering drive motor, 703-drive gear, 704-clamp. DETAILED DESCRIPTION

[0048] The present invention provides a three-chuck laser tube cutting system. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0049] See also Figure 1 and Figure 2 The present invention provides a three-chuck laser tube cutting system, comprising a three-chuck laser tube cutting machine D, a feeding device B and a material receiving device C arranged behind the three-chuck laser tube cutting machine D, wherein the feeding device B comprises a feeding rack B1, a plurality of material storage stations B100 arranged on the upper part of the feeding rack B1 and arranged along the length direction thereof, and a multiple-segment stroke supporting mechanism B200; the multiple-segment stroke supporting mechanism B200 comprises a transverse sliding plate B2 which can slide back and forth laterally on the side wall of the feeding rack B1, a first-stage lifting plate B3 which can be lifted and lowered on the transverse sliding plate B2, a second-stage lifting plate B4 which can be lifted and lowered on the first-stage lifting plate B3, a transverse driving component B5 for driving the transverse sliding plate B2 to move laterally, a first-stage lifting component B6 for driving the first-stage lifting plate B3 to rise or fall, a second-stage lifting component B7 for driving the second-stage lifting plate B4 to rise or fall following the first-stage lifting plate B3, and a material receiving component arranged on the second-stage lifting plate B4 B8, the material receiving component B8 is used to support pipes; the material receiving device C includes a plurality of material rack modules C100 arranged at intervals and a plurality of material unloading racks C200 arranged at intervals behind the material receiving modules C100, each material receiving module C100 includes a material receiving base frame C1, a fixed plate C2 arranged on the material receiving base frame 1, a first section movable plate C3 which can be lifted up and down on the fixed plate C2, a second section movable plate C4 which can be lifted up and down on the first section movable plate C3, a first section material receiving component C5 for driving the first section movable plate C3 to be lifted up and down, and a second section material receiving component C6 for driving the second section movable plate C4 to be lifted up and down following the lifting of the first section movable plate C3, a material receiving plate C7 is hinged on the top of the second section movable plate C4, and a material receiving drive component C8 is arranged on the second section movable plate C4 for driving the material receiving plate C7 to support the pipe when it is horizontal or to guide the pipe to the unloading rack C200 located behind the material receiving base frame C100 when it is tilted backward.

[0050] See also Figure 1 and Figure 3In this embodiment, three loading racks B1 are provided, and the front side of each loading rack B1 is connected to the rear side of the three-chuck laser tube cutting machine D. Three storage stations B100 are equidistantly provided on each loading rack B1, and a pipe to be processed is placed on each storage station B100 or any storage station B100. When the multiple-stage stroke support mechanism B200 takes materials, the pipe on the storage station B100 in front must be taken away first, that is, when there is a pipe on the first storage station B100, the material is taken first. When there is a pipe on the first storage station B100, the multiple-stage stroke support mechanism B200 cannot move to the second storage station B100 or the third storage station B100 to take materials, and materials should be taken in sequence to prevent the pipe on the storage station B100 in front from causing obstruction when the multiple-stage stroke support mechanism B200 moves toward the direction of the three-chuck laser tube cutting machine D after taking materials. In addition, multiple multi-stage travel support mechanisms B200 are electrically connected to the control center. When the control center controls multiple multi-stage travel support mechanisms B200 to operate synchronously, they can support and transport long pipes; when the control center controls a single multi-stage travel support mechanism B200 to operate, it can support and transport short pipes. According to the use requirements, a feeding device suitable for pipes of different lengths such as six meters, nine meters, and twelve meters can be made. When the feeding device has a feeding length of twelve meters, the weight of a single pipe reaches 1500kg, and the load-bearing capacity of each feeding rack B1 can reach 4500kg, which can hold three pipes weighing 1500kg.

[0051] See also Figure 1 , Figure 2 and Fig.13 , the material receiving modules C100 are arranged at intervals to be five, and the material unloading racks C200 are arranged at intervals to be seven. The five groups of material receiving modules C100 are all electrically connected to the control center. Similarly, the five groups of material receiving modules C100 can be operated individually or in multiple groups synchronously, and can be used to receive pipes of different lengths such as three meters, six meters, nine meters, and twelve meters. When the pipe is twelve meters, the weight of a single pipe can reach 1500kg; the loading device B, the material receiving device C, and the chucks on the three-chuck laser tube cutting machine D cooperate, so that the three-chuck laser tube cutting system is suitable for square tubes, rectangular tubes, H-shaped steels, channel steels, angle irons, small-diameter round tubes, medium-diameter round tubes, large-diameter round tubes and other profiles, and has stronger versatility and adaptability.

[0052] See also Figure 1 and Figure 2Specifically, the front sides of the five groups of receiving modules C100 are connected to the rear side of the three-chuck laser tube cutting machine D. Each unloading rack C200 is provided with four bolt holes C203 for connecting and positioning with the ground through bolts. Each unloading rack C200 is fixed separately, that is, it is not connected to the receiving module C100. The unloading rack C200 can be placed at any position according to the length of the receiving pipe. When unloading large or heavy pipes, the impact force of the pipe on the unloading rack C200 will not be transmitted to the receiving module C100, that is, the position of the receiving module C100 will not change and will not affect the precision parts on the receiving module C100.

[0053] See also Figure 1 and Figure 2 , three loading racks B1 form a loading area, the rightmost loading rack B1 and the leftmost receiving module C100 form a laser cutting area, and five groups of receiving modules C100 and seven unloading racks C200 form a receiving area.

[0054] See also Figure 3 , Figure 4 and Fig.11 When loading, the transverse driving assembly B5 drives the transverse sliding plate B2 to move toward the loading rack B1 (i.e., the rear). When it reaches the position, the transverse driving assembly B5 stops running, and the multi-stage travel support mechanism B200 moves to any storage station B100 on the loading rack B1 (the pipes located in the front are preferred); please refer to Figure 5 and Figure 8Then, under the action of the first lifting component B6, the first lifting slide B3 is driven to rise. At the same time, under the action of the second lifting component B7, the second lifting slide B4 follows the rise of the first lifting slide B3, so that the second lifting slide B4 can achieve two-stage rise, and the material supporting component B8 supports the bottom of the pipe from bottom to top, so that the pipe is located above the material storage station B100; when feeding, under the action of the transverse driving component B5, the transverse slide B2 is driven to move toward the three-chuck laser tube cutting machine D (i.e., the loading area in front) until the pipe to be processed is concentric with the chuck on the three-chuck laser tube cutting machine D. After the chuck clamps the two ends of the pipe (i.e., loading), the pipe is cut under the action of the laser cutting component A on the three-chuck laser tube cutting machine D. (When cutting a long tube, the multi-stage stroke support mechanism B200 will move up and down to match the change in the cutting height of the tube, that is, the height of the first-stage lifting slide B3 and the second-stage lifting slide B4 will change according to the change in the cutting height of the tube, thereby realizing follow-up support). After the cutting is completed or when there is no tube that needs to be supported in front of the corresponding loading rack B1, under the joint action of the first-stage lifting component B6 and the second-stage lifting component B7, the first-stage lifting slide B3 drives the second-stage lifting slide B4 to descend (i.e., reset), and the height of the transverse slide B2, the second-stage lifting slide B4 and the first-stage lifting slide B3 is basically the same, that is, the height of the multi-stage stroke support mechanism B200 is at the lowest; then, under the action of the transverse drive component B5, the transverse slide B2 is reset to the waiting position, waiting to transport the tube on the next storage station B100.

[0055] See also Fig.17 and Fig.19 As the long pipe is cut, that is, when the pipe gradually moves to the material receiving area on the right side, under the action of the first material receiving component C5, the first movable plate C3 is driven to rise. At the same time, under the action of the second material receiving component C6, the second movable plate C4 rises along with the rise of the first movable plate C3, so that the second movable plate C4 achieves a two-stage rising support stroke. When the second movable plate C4 rises, the material receiving drive component C8 and the material receiving plate C7 arranged thereon are driven to rise synchronously. At this time, under the action of the material receiving drive component C8, the material receiving plate C7 is in a horizontal state, and the material receiving plate C7 abuts against the bottom end of the pipe being cut. When the pipe being cut is a rectangular pipe, square pipe, H-shaped steel, channel steel, angle iron or other profiles, the distance from the lowest point of the profile to the ground changes at any time due to the rotation of the profile driven by the chuck. Therefore, under the joint action of the first-stage material connection component C5 and the second-stage material connection component C6, the first-stage movable plate C3 and the second-stage movable plate C4 follow the change in the height of the pipe from the ground and change their lifting height accordingly, so that the material connection plate C7 can support the pipe accordingly, which can effectively prevent large and heavy pipes from shaking during rotation or movement, thereby reducing the cutting accuracy. Please refer to Figure 13-Figure 15 and Fig.21 After the cutting is completed, the chuck releases the clamping of the pipe, and the pipe is supported on the receiving plate C7. While the first receiving assembly C5 drives the first movable plate C3 to descend, the second receiving assembly C6 drives the second movable plate C4 to descend until the heights of the fixed plate C2, the first movable plate C3 and the second movable plate C4 are basically the same; then, under the action of the receiving drive assembly C8, the rear end of the receiving plate C7 is tilted downward, so that the round tube rolls to the unloading rack C200 located behind the receiving module C100 or the profile slides to the unloading rack C200 located behind the receiving module C100 under the guidance of the inclined receiving plate C7.

[0056] It should be noted here that when cutting long, large, and heavy pipes, that is, when the pipe is in the cutting area, but the left end of the pipe is still in the loading area, and the right end of the pipe is in the receiving area, the corresponding loading rack B1 and the receiving module C100 will continue to support the pipe and cooperate with the chuck to improve the processing accuracy of the pipe when it moves and rotates.

[0057] The three-chuck laser tube cutting system is provided with a three-chuck laser tube cutting machine D for clamping and cutting tubes, a plurality of material storage stations B100 for storing tubes, a transverse driving assembly B5 for driving a transverse sliding plate B2 to move transversely, a first-stage lifting assembly B6 for driving a first-stage lifting plate B3 to rise or fall, a second-stage lifting assembly B7 for driving a second-stage lifting plate B4 to rise when it rises or to fall when it falls following a first-stage lifting plate B3, and a material receiving assembly B8 for supporting tubes; a plurality of material receiving modules C100 and a plurality of material unloading racks C200 are provided, which can be suitable for unloading tubes of different lengths; and a material receiving assembly B8 for installing The material receiving base frame C1 of the fixed plate C2, the first-stage material receiving component C5 that drives the first-stage movable plate C3 to rise or fall, the second-stage material receiving component C6 that drives the second-stage movable plate C4 to rise when it rises or fall when it falls following the first-stage movable plate C3, and the material receiving drive component C8 used to make the material receiving plate C7 horizontal or inclined, so that the feeding device B and the material receiving device C both have the function of up and down follow-up support, realize the support stroke of the two-stage rise or fall with the lowest compression ratio, can realize a larger stroke in a narrow space, facilitate the loading and unloading height requirements of the three-chuck laser tube cutting machine D, and are conducive to the rational use of space.

[0058] See also Figure 6-7 , Figure 8-9Furthermore, the two-stage lifting component B7 includes a first loading positioning block B71 arranged on the right side of the transverse slide B2, a second loading positioning block B72 arranged on the right side of the two-stage lifting slide B4, a loading positioning shaft B73 arranged on the upper part of the one-stage lifting slide B3, a loading sprocket B74 rotatably arranged on the loading positioning shaft B73, and a loading chain B75 whose two ends are respectively connected to the first loading positioning block B71 and the second loading positioning block B72, and the loading chain B75 is meshed with the loading sprocket B74. The loading positioning shaft B73 is fixed to the right side of the upper part of the one-stage lifting slide B3 by a screw, and the upper part of the one-stage lifting slide B3 is provided with a U-shaped groove for avoiding the loading sprocket B74. Please refer to Figure 6-7 When the first stage lifting assembly B6 rotates forward, it drives the first stage lifting slide B3 to move upward. Since one end of the feeding chain B75 is fixed on the transverse sliding slide B2 through the first feeding positioning block B71, and the other end of the feeding chain B75 is fixed on the second stage lifting slide B4 through the second feeding positioning block B72, and the middle position of the feeding chain B75 is engaged with the feeding sprocket B74 set on the feeding positioning shaft B73, the first stage lifting slide B3 rises, and under the action of the feeding chain B75, the second stage lifting slide B4 is pulled up at the same time, thereby realizing the two-stage rise. Please refer to Figure 8-9 On the contrary, when the first stage lifting assembly B6 rotates in the opposite direction, it drives the first stage lifting slide B3 to descend, and under the pulling action of the feeding chain B75, it pulls the second stage lifting slide B4 to descend synchronously until the height of the highest position of the second stage lifting slide B4 is substantially the same as the height of the highest position of the first stage lifting slide B3. The above structure is cleverly arranged, and under the pulling action of the feeding chain B75, the second stage lifting slide B4 can rise when the first stage lifting slide B3 rises and fall when the first stage lifting slide B3 falls.

[0059] See also Fig.10Further, the first feeding positioning block B71 is provided with a feeding waist-shaped hole B711 extending along its height direction, the transverse sliding plate B2 is provided with a first feeding threaded hole B23 corresponding to the feeding waist-shaped hole B711, and a feeding locking screw (not shown in the figure) is provided in the feeding waist-shaped hole B711 and the first feeding threaded hole B23; a feeding adjustment block B76 is provided below the first feeding positioning block B71, and the feeding adjustment block B76 is provided with a screw thread penetrating the upper and lower side walls thereof A feeding through hole B761 and a second feeding threaded hole B762 are provided, and a third feeding threaded hole B712 corresponding to the feeding through hole B761 is provided at the lower part of the first feeding positioning block B71. The feeding through hole B761 and the third feeding threaded hole B712 are provided with the same feeding adjustment screw B77, and a feeding lifting screw B78 is threadedly connected in the second feeding threaded hole B762, and the end of the feeding lifting screw B78 abuts against the lower surface of the first feeding positioning block B71. Since one end of the feeding chain B75 is fixed on the second feeding positioning block B72, and the other end of the feeding chain B75 is fixed on the first feeding positioning block B71, when it is necessary to fine-tune the tension of the feeding chain B75, it can be achieved by adjusting the distance between the first feeding positioning block B71 and the feeding adjustment block B76. The specific operation is: when it is necessary to increase the distance between the feeding adjustment block B76 and the first feeding positioning block B71, first loosen the locking screw so that the first feeding positioning block B71 can move up and down under the action of the feeding waist hole B711, screw the feeding adjustment screw B77 into the third feeding threaded hole B712 in the first feeding positioning block B71 to shallow the depth, measure the distance between the first feeding positioning block 71 and the feeding adjustment block 76 with a caliper or other measuring instrument, and after determining the distance between the two, hold the first feeding positioning block B71 and move the first feeding The positioning block B71 moves upward so that the head of the feeding adjusting screw B77 (the outer diameter of the rod body of the feeding adjusting screw B77 is smaller than the aperture of the feeding through hole B761, so its rod body can pass through the feeding through hole B761, and the diameter of the head of the feeding adjusting screw B77 is larger than the aperture of the feeding through hole B761, so its head cannot pass through the feeding through hole B761) abuts against the lower surface of the feeding adjusting block B76, and then the feeding lifting screw B78 is screwed into the second feeding threaded hole B762, so that the end of the feeding lifting screw B78 abuts against the lower surface of the first feeding positioning block B71. After the first feeding positioning block B71 is lifted, the first feeding positioning block B71 is finally fixed to the right side of the transverse slide plate B2 by the feeding locking screw, thereby increasing the distance between the first feeding positioning block B71 and the feeding adjustment block B76, and loosening the feeding chain B75.On the contrary, when the distance between the feeding adjustment block B76 and the first feeding positioning block B71 needs to be shortened, first loosen the feeding locking screw, then screw the feeding lifting screw B78 downward a part, and then screw the feeding adjustment screw B77 into the third feeding threaded hole B712 to adjust the depth. After measuring the distance between the feeding adjustment block B76 and the first feeding positioning block B71, lift the first feeding positioning block B71 by the feeding lifting screw B78, and then fix the first feeding positioning block B71 by the feeding locking screw to tighten the feeding chain B75.

[0060] See also Figure 6 Furthermore, the first feeding positioning block B71, the second feeding positioning block B72, the feeding sprocket B74, the feeding chain B75 and the feeding adjustment block B76 are all symmetrically arranged in two pieces, and the two feeding sprockets B74 are respectively arranged at the two ends of the feeding positioning shaft B73, and the two feeding sprockets B74 are respectively engaged with the corresponding feeding chains B75. By setting two sets of feeding chains B75, the transverse slide B2, the first lifting slide B3 and the second lifting slide B4 can be supported at two points, so as to improve the stability of the second lifting slide B4 when it rises or falls, and prevent the material bearing assembly B8 arranged on the second lifting slide B4 from shaking.

[0061] See also Figure 5 , Figure 7 and Figure 8 Further, a first in-position sensor B31 and a second in-position sensor B32 are arranged on the side wall of the first lifting slide B3, and the first in-position sensor B31 and the second in-position sensor B32 are arranged up and down along the height direction of the first lifting slide B3, and a sensing sheet B41 is arranged at the lower part of the side wall of the second lifting slide B4, and the first in-position sensor B31 and the second in-position sensor B32 are respectively used to sense the sensing sheet B41. In this embodiment, please refer to Figure 8 When the second in-position sensor B32 senses the sensing sheet B41, the second-stage lifting slide B4 is at the lowest position; refer to Figure 5 and Figure 7 , when the first in-position sensor B31 senses the sensing sheet B41, the two-stage lifting slide B4 is at the highest position. The first in-position sensor B31 and the second in-position sensor B32 are electrically connected to the control center respectively, and the first lifting component B6 is electrically connected to the control center, and the operation or start of the first lifting component B6 is controlled by signal transmission, thereby controlling the height of the two-stage lifting slide B4 rising or falling. It should be noted here that the attached drawings only show the mounting bases of the first in-position sensor B31 and the second in-position sensor B32. The first in-position sensor B31 and the second in-position sensor B32 are conventional products that can be directly purchased on the market.

[0062] See also Figure 6 and Fig. 9 Further, a vertical two-stage lifting rail B33 is provided on the left side of the one-stage lifting slide B3, and a two-stage lifting slider B34 cooperating with the two-stage lifting rail B33 is provided on the right side of the two-stage lifting slide B4; two two-stage limit blocks B42 are provided on the side wall of the two-stage lifting slide B4, and the two two-stage limit blocks B42 are arranged up and down along the height direction of the two-stage lifting slide B4, and a two-stage anti-collision seat B43 is provided between the two two-stage limit blocks B42, and the two-stage anti-collision seat B43 is arranged on the side wall of the one-stage lifting slide B3. Under the pulling action of the feeding chain B75 and the cooperation of the two-stage lifting rail B33 and the two-stage lifting slider B34, the two-stage lifting slide B4 can be smoothly raised or lowered under the guidance of the two-stage lifting rail B33. Specifically, the distance between the two second-stage limit blocks B42 is greater than the moving stroke of the second-stage lifting slide B4. Therefore, under normal circumstances, the second-stage anti-collision seat B43 will not contact the second-stage limit block B42. The second-stage limit block B42 is provided to prevent the first-stage lifting component B6 from continuing to run when the first in-place sensor B31 or the second in-place sensor B32 fails. The second-stage limit block B42 and the second-stage anti-collision seat B43 prevent the safety hazard caused by the continuous rising or falling of the second-stage lifting slide B4.

[0063] See also Figure 5 and Figure 8 Furthermore, the multi-stage stroke support mechanism B200 also includes a clamping positioning assembly B9 arranged on the left side of the second-stage lifting slide B4, and the clamping positioning assembly B9 includes a cylinder support B91, a clamping cylinder B92 whose output end passes through the cylinder support B91, a traction block B93 connected to the output end of the clamping cylinder B92, two pull rods B94 hinged to the traction block B93, and clamping blocks B95 respectively hinged to the ends of the two pull rods B94, and the two clamping blocks B95 are used to clamp the pipe. The clamping positioning assembly B9 is used to make the pipe in the center position, which is conducive to the accurate loading position, ensuring the concentricity of the pipe and the chuck, thereby improving the loading efficiency. The working principle of the clamping positioning assembly B9 is as follows: during loading, the output end of the clamping cylinder B92 is in an extended state (please refer to Figure 8 ), under the action of the traction block B93, the two pull rods B94 and the clamping block B95 are driven to move away from each other, providing clamping space for the pipe; when the second-stage lifting slide plate B4 rises to its position, the material receiving assembly B8 contacts the pipe, and the output end of the clamping cylinder B92 begins to contract, driving the traction block B93 to move downward, so that the pull rod B94 and the clamping block B95 gradually approach each other, shortening the distance between the two clamping blocks B95, until the inner wall of the clamping block B95 abuts against the outer wall of the pipe (please refer to Figure 5), after clamping the pipe, the transverse drive assembly B5 runs to move the pipe toward the three-chuck laser pipe cutting machine D; when the chuck clamps both ends of the pipe, the output end of the clamping cylinder B92 gradually extends, driving the clamping blocks B95 to move away from each other, releasing the clamping of the pipe, and then the two-stage lifting slide B4 descends.

[0064] See also Figure 5 and Figure 8 Furthermore, a first transverse sliding rail B96 extending laterally is provided on the left side of the two-stage lifting slide B4, and a first transverse sliding block B97 cooperating with the first transverse sliding rail B96 is provided on the right side of the two clamping blocks B95; a vertical clamping lifting rail B98 is provided on the left side wall of the two-stage lifting slide B4, and a clamping lifting block (not visible in the figure) cooperating with the clamping lifting rail B98 is provided on the right side of the traction block B93. By providing the first transverse sliding rail B96 and the first transverse sliding block B97, the two clamping blocks B95 are moved closer to or away from each other under the guidance of the first transverse sliding rail B96. Similarly, by providing the clamping lifting rail B98 and the clamping lifting block, the traction block B93 rises or falls under the guidance of the clamping lifting rail B98, thereby improving the moving stability of the traction block B93 and the clamping block B95.

[0065] See also Figure 5 and Figure 8 Specifically, an elastic part B99 is provided on the side walls of the two clamping blocks B95 facing each other. The elastic part B99 is made of silicone, rubber and other materials to prevent the metal clamping block B95 from directly contacting the pipe made of the same metal material. The elastic part B99 has certain elasticity and deformation ability, which can increase the friction with the pipe, thereby improving the clamping effect on the pipe.

[0066] See also Figure 5 Furthermore, the one-stage lifting assembly B6 includes a one-stage lifting motor B61 disposed on the one-stage lifting slide B3 and having its output end passing through the one-stage lifting slide B3, a lifting gear (not visible in the figure) that is transmission-connected to the output end of the one-stage lifting motor B61, and a lifting rack B62 disposed on the front side of the one-stage lifting slide B3 and extending along its height direction, and the lifting gear is meshed with the lifting rack B62. When the one-stage lifting motor B61 rotates forward, it drives the lifting gear to rotate forward, causing the lifting gear to rise under the guidance of the lifting rack B62, thereby driving the one-stage lifting slide B3 to rise; conversely, the one-stage lifting motor B61 rotates in the reverse direction, driving the one-stage lifting slide B3 to descend; the above structure has high transmission efficiency and is accurate in position.

[0067] Specifically, the first-stage lifting motor B61 is a servo motor having a brake function, which can prevent the heavy pipe and the second-stage lifting slide 4 from falling due to a sudden power failure of the first-stage lifting motor B61 when the pipe is loaded, causing a safety hazard.

[0068] See also Figure 5 Further, a vertical lifting rail B63 is disposed on the left side of the transverse sliding plate B2, and a lifting slider B64 cooperating with the lifting rail B63 is disposed on the right side of the lifting sliding plate B3; please refer to Figure 6 and Fig. 9 , two one-stage limit blocks B21 are arranged on the side wall of the transverse sliding plate B2, and the two one-stage limit blocks B21 are arranged up and down along the height direction of the transverse sliding plate B2, and a one-stage anti-collision seat B22 is arranged between the two one-stage limit blocks B21, and the one-stage anti-collision seat B22 is arranged on the side wall of the one-stage lifting plate B3. By arranging a one-stage lifting rail B63 and a one-stage lifting slider B64, the one-stage lifting plate B3 can be smoothly raised or lowered under the guidance of the one-stage lifting rail B63. Similarly, the distance between the two one-stage limit blocks B21 is greater than the moving stroke of the one-stage lifting plate B3, that is, the one-stage anti-collision seat B22 generally does not contact the one-stage limit block B21, and the one-stage limit block B21 and the one-stage anti-collision seat B22 play a role in protecting the one-stage lifting plate B3.

[0069] See also Figure 5 Furthermore, the material bearing assembly B8 includes two feeding bearing seats B81 arranged on the top of the second-stage lifting slide plate B4, and a feeding rolling shaft B82 whose two ends are rotatably connected to the corresponding feeding bearing seats B81. The feeding rolling shaft B82 is a heavy-duty feeding rolling shaft B82, which can reduce the friction when large and heavy pipes move radially. The feeding rolling shaft B82 plays a role in supporting the pipe and cooperates with the clamping block B95 to achieve the centering and clamping of the pipe.

[0070] See also Figure 5 , Figure 6 and Fig.11Furthermore, the transverse driving assembly B5 includes a transverse motor B51 disposed on the transverse slide B2 and having its output end passing through the transverse slide B2, a transverse gear B52 drivingly connected to the output end of the transverse motor B51, and a transverse rack B53 disposed on the front side of the loading rack B1 and extending along its length direction, and the transverse gear B52 is meshed with the transverse rack B53. When the transverse motor B51 rotates forward, it drives the transverse gear B52 to rotate forward, so that the transverse gear B52 moves toward the direction of the three-chuck laser tube cutting machine D under the guidance of the transverse rack B53 for loading; conversely, when the transverse motor B51 rotates reversely, the transverse slide B2 moves toward the direction of the loading rack B1 for taking materials. Similarly, the above structure has high precision and is accurate in position.

[0071] See also Figure 5 , Figure 6 and Fig.11 Further, a second transverse sliding block B54 is provided on the right side of the transverse sliding plate B2, a second transverse sliding rail B55 parallel to the transverse rack B53 is provided on the loading rack B1, and the second transverse sliding block B54 is slidably provided on the second transverse sliding rail B55. By providing the second transverse sliding rail B55 and the second transverse sliding block B54, the moving stability of the transverse sliding plate B2 is improved.

[0072] See also Fig.11 and Fig.12 Furthermore, each of the material storage stations B100 includes a material discharge bin B101 and a hook-shaped groove B102 (specifically, the hook-shaped groove B102 is in a "√" shape) arranged on the upper part of the material discharge bin B101, and the short side of the hook-shaped groove B102 extends toward the three-chuck laser tube cutting machine D (i.e., the front), and the long side of the hook-shaped groove B102 extends away from the three-chuck laser tube cutting machine D (i.e., the rear). Under the guiding action of the long side of the hook-shaped groove B102, the pipe tends to approach the short side. The setting of the short side plays a role in limiting and making the pipe uniformly positioned, so that the material taking position of the multiple-stage stroke support mechanism B200 is the same each time when taking the pipe, thereby ensuring the stability of loading; and the structure of the hook-shaped groove B102 is suitable for a variety of profiles such as rectangular tubes, H-shaped steels, channel steels, angle irons, etc., and is also suitable for pipes of various diameters such as small diameter round tubes, medium diameter round tubes and large diameter round tubes, and has very strong versatility; further, the material storage B101 is detachably arranged on the loading rack B1 by screws, and there is no need to replace it when processing different pipes, and it is very convenient to use.

[0073] See also Fig.12Furthermore, the angle α of each hook-shaped groove B102 is 90°, the angle β between the short side of each hook-shaped groove B102 and the horizontal plane is 79°, and the angle γ between the long side of each hook-shaped groove B102 and the horizontal plane is 11°. During processing, the upper part of the material storage B101 can be processed into the hook-shaped groove B102. The 90° α angle has a strong supporting capacity for pipe fittings or profiles, and effectively prevents safety problems caused by the fall of heavy pipes. The sum of the α angle, the β angle and the γ angle is equal to 180°, which is the horizontal line, and is easy to process.

[0074] See also Fig.11 Furthermore, a travel switch B110 is provided on the side wall of each of the unloading material storages B101, and each of the travel switches B110 is used to identify whether there are pipes in the corresponding hook-shaped groove B102. Each travel switch B110 is electrically connected to the control center, and the control center is electrically connected to the multi-stage travel support mechanism B200. The travel switch B110 transmits a signal to the control center, so that the multi-stage travel support mechanism 200 knows which unloading material storage B101 supports pipes or profiles, so that it can quickly move to the corresponding unloading material storage B101 to take materials.

[0075] See also Fig.11 Furthermore, the loading rack B1 is provided with a first in-place sensor (not visible in the figure) and a second in-place sensor B112, the first in-place sensor and the second in-place sensor B112 are arranged front and back, and the first in-place sensor and the second in-place sensor B112 are respectively used to sense the in-place sensor sheet B24 arranged on the side wall of the transverse slide B2. When the in-place sensor sheet B24 on the multiple-stroke support mechanism B200 moves to the front of the first in-place sensor, the multiple-stroke support mechanism B200 is located at the front; conversely, when the in-place sensor sheet B24 moves to the front of the second in-place sensor B112, the multiple-stroke support mechanism B200 is located at the rear. The attached figure shows only the mounting frame of the second in-place sensor B112, and the first in-place sensor and the second in-place sensor B112 are conventional products that can be purchased directly on the market.

[0076] See also Figure 7 and Fig.11Furthermore, the loading rack B1 is provided with two relative base anti-collision seats B143, and the distance between the two base anti-collision seats B143 is greater than the distance between the first in-position sensor and the second in-position sensor B112. A loading anti-collision block B25 is provided on the right side of the transverse sliding plate B2, and the loading anti-collision block B25 is provided between the two base anti-collision seats B143. Similarly, under normal circumstances, the loading anti-collision block B25 will not contact any base anti-collision seat B143. The base anti-collision seat B143 and the loading anti-collision block B25 are provided to prevent the first in-position sensor, the second in-position sensor B112 or the transverse motor B51 on the multi-stage stroke support mechanism B200 from malfunctioning, so that the multi-stage stroke support mechanism B200 continues to move laterally, playing a role of protection and limiting.

[0077] See also Fig.17 , Fig.19 and Fig. 20 Further, the two-stage material receiving assembly C6 includes a first material receiving positioning block C61 arranged on the front side of the fixed plate C2, a second material receiving positioning block C62 arranged on the front side of the second-stage movable plate C4, two material receiving bearing seats C63 arranged on the upper side walls of the first-stage movable plate C3, a rotating shaft C64 rotatably arranged between the two material receiving bearing seats C63, a material receiving sprocket C65 arranged on both ends of the rotating shaft C64, and a material receiving chain C66 connected to the first material receiving positioning block C61 and the second material receiving positioning block C62 at both ends, and the middle position of the material receiving chain C66 is meshed with the corresponding material receiving sprocket C65 for transmission. Two material receiving sprockets C65 and two material receiving chains C66 are arranged to ensure force balance, and a rotating shaft C64 drives the two material receiving sprockets C65 to rotate coaxially.

[0078] Specifically, the lower part of the second-stage movable plate C4 is provided with an N-shaped groove for avoiding the first-stage receiving component C5. Fig.17 , Fig.19 and Fig. 20 The two ends of the material receiving chain C66 are respectively fixed on the first material receiving positioning block C61 and the second material receiving positioning block C62, that is, the two ends of the material receiving chain C66 are equivalent to being connected to the front side of the fixed plate C2 and the second movable plate C4 respectively. When a material receiving component C5 rotates forward to drive a movable plate C3 and the material receiving bearing seat C63, rotating shaft C64, and material receiving sprocket C65 arranged on the movable plate C3 to rise synchronously, under the driving action of the material receiving sprocket C65, the material receiving chain C66 with one end connected to the front side of the fixed plate C2 is subjected to force to pull the second movable plate C4 to rise synchronously, realizing the supporting stroke of two-stage rise. Please refer to Fig.21On the contrary, when the first section of the material receiving assembly C5 rotates in the opposite direction to drive the first section of the movable plate C3 to descend, the material receiving sprocket C65 is always engaged with the material receiving chain C66, and under the gravity of the second section of the movable plate C4 itself and the traction of the material receiving chain C66, the second section of the movable plate C4 is synchronously descended until the heights of the second section of the movable plate C4, the first section of the movable plate C3 and the highest position of the fixed plate C2 are basically the same. The above structure is simple and ingeniously designed. By using the material receiving chain C66 and the material receiving sprocket C65, the second section of the movable plate C4 can be pulled up or down following the first section of the movable plate C3, the manufacturing cost is low, and the effect of achieving a two-stage lifting stroke is remarkable.

[0079] From the above description, it can be seen that the principles of driving the two-stage lifting slide plate B4 in the loading rack B1 and driving the two-stage movable plate C4 to rise and fall in the material receiving module C100 are basically the same, that is, the two-stage lifting slide plate B4 or the two-stage movable plate C4 connected to the other end of the chain are also pulled up or down by a chain to realize a two-stage rising or falling moving stroke.

[0080] See also Fig.19 Furthermore, a tension adjustment block C67 is provided on the front side of the fixed plate C2, and the tension adjustment block C67 is arranged above the first material receiving and positioning block C61; the first material receiving and positioning block C61 is provided with a first adjustment waist-shaped hole C611 extending along its height direction, and the fixed plate C2 is provided with a first threaded hole corresponding to the first adjustment waist-shaped hole C611, and the first adjustment waist-shaped hole C611 and the first threaded hole are provided with the same first locking screw (not shown in the figure); the tension adjustment block C67 is provided with a second threaded hole C671 passing through the upper and lower side walls thereof, and the second threaded hole C671 is threadedly connected with a first limiting screw C68, and the end of the first limiting screw C68 abuts against the upper surface of the first material receiving and positioning block C61.

[0081] During installation, first fix the first material receiving positioning block C61 to the front side of the fixed plate C2 through the first locking screw, and then fix the tension adjustment block C67 to the front side of the fixed plate C2 through the screw. When the tension of the material receiving chain C66 needs to be adjusted, since the second material receiving positioning block C62 is fixed on the second-stage movable plate C4, the tension of the material receiving chain C66 can be finely adjusted by adjusting the position of the first material receiving positioning block C61 relative to the fixed plate C2. The specific adjustment steps are as follows: when the material receiving chain C66 needs to be tightened, first loosen the first locking screw so that the first material receiving positioning block C61 can move upward under the guidance of the first adjustment waist hole C611 (because due to the deadweight of the two-stage movable plate C4, one end of the material receiving chain C66 connected to the second material receiving positioning block C62 will pull the other end of the material receiving chain C66 connected to the first material receiving positioning block C61); then screw the first limiting screw C68 into the second threaded hole C671 from top to bottom. In the process of screwing in the first limiting screw C68, the end of the first limiting screw C68 pushes the first material receiving positioning block C61 downward, and then measure the distance from the lower surface of the tension adjustment block C67 to the upper surface of the first material receiving positioning block C61 by measuring instruments such as calipers. After reaching the preset distance, finally lock the first material receiving positioning block C61 on the fixed plate C2 by the first locking screw. Conversely, when the material connection chain C66 needs to be loosened, the first locking screw is also loosened first, and then the first limit screw C68 is gradually screwed out of the second threaded hole C671, and the distance between the tension adjustment block C67 and the first material connection positioning block C61 is measured, and then the first locking screw is re-locked. Through the above settings, the distance between the tension adjustment block C67 and the first material connection positioning block C61 can be intuitively known through the distance meter, so as to achieve accurate adjustment of the tension of the material connection chain C66.

[0082] See also Fig.19 and Fig. 20Furthermore, a two-stage material receiving slider C42 is provided on the rear side of the one-stage movable plate C3, and a two-stage material receiving slide rail C41 extending along its height direction is provided on the front side of the two-stage movable plate C4, and the two-stage material receiving slider C42 is slidably provided on the two-stage material receiving slide rail C41. The two-stage material receiving slide rails C41 are provided in two numbers, and each of the two-stage material receiving slide rails C41 is provided with more than one two-stage material receiving slider C42. When installing the two-stage material receiving slide rails C41, any one of the two-stage material receiving slide rails C41 is taken as the main guide rail, and the other is taken as the auxiliary guide rail. The side reference of the main guide rail rests on the slide rail installation surface of the two-stage movable plate C4, and then the collimator is used to detect the flatness and straightness of the entire main guide rail, and the accuracy is corrected to make the straightness accuracy corrected to ≤0.02mm / m, and then the auxiliary guide rail is installed and the dial indicator is used to detect the parallelism of the main guide rail and the auxiliary guide rail, and then the auxiliary guide rail is corrected, and the parallelism of the main guide rail and the auxiliary guide rail is ≤0.03mm. By providing a second-stage receiving slider C42 and a second-stage receiving rail C41, the second-stage movable plate C4 can be smoothly raised or lowered under the guidance of the second-stage receiving rail C41, thereby improving the stability of the receiving plate C7 provided thereon, thereby improving the supporting effect on the pipe.

[0083] See also Fig.19 and Fig. 20 Further, the upper part of the front side of the two-stage movable plate C4 is provided with a first-second-stage limit seat C43 and a first-second-stage anti-collision block C44 arranged below the first-second-stage limit seat C43, and the first-second-stage anti-collision block C44 is arranged on the rear side of the one-stage movable plate C3; the lower part of the front side of the two-stage movable plate C4 is also provided with a second-second-stage anti-collision block C45 and a second-second-stage limit seat C46 arranged above the second-second-stage anti-collision block C45, and the second-second-stage limit seat C46 is arranged on the rear side of the one-stage movable plate C3. Under normal circumstances, the first-second-stage limit seat C43 will not contact the first-second-stage anti-collision block C44, and similarly, the second-second-stage anti-collision block C45 will not contact the second-second-stage limit seat C46, ​​that is, the distance between the first-second-stage limit seat C43 and the second-second-stage limit seat C46 is greater than the moving stroke of the two-stage movable plate C4. The above-mentioned setting is used to prevent the one-stage material receiving component C5 from continuously running, and plays a role in limiting the moving stroke of the two-stage movable plate C4.

[0084] See also Fig.17Furthermore, the material receiving section assembly C5 includes a material receiving drive motor C51, a material receiving transmission gear C9 (not visible in the figure) that is transmission-connected to the output end of the material receiving drive motor C51, and a material receiving transmission rack C52 that is arranged on the rear side of the fixed plate C2 and extends along its height direction, and the material receiving transmission gear is meshed with the material receiving transmission rack C52. When in use, when the material receiving drive motor C51 rotates forward, it drives the material receiving transmission gear to rotate forward, and under the guidance of the material receiving transmission rack C52, a movable plate C3 connected to the material receiving drive motor C51 is raised. On the contrary, when the material receiving drive motor C51 rotates reversely, it drives the material receiving transmission gear to rotate reversely, so that a movable plate C3 is lowered. The above structure has high transmission efficiency and high transmission accuracy.

[0085] Similarly, the first-stage material receiving drive motor C51 is a servo motor with a brake function, which can prevent large and heavy pipes and the second-stage movable plate 4 from falling due to a sudden power failure of the first-stage material receiving drive motor C51 when cutting, supporting or receiving the pipe, causing safety hazards.

[0086] See also Fig.15 and Fig.16 Further, the upper part of the receiving frame C1 is provided with a first position sensor C11, and the lower part of the side wall of the first movable plate C3 is provided with a first sensing sheet C31 for sensing the first position sensor C11; the lower part of the receiving frame C1 is provided with a second position sensor C12, and the lower part of the side wall of the second movable plate C4 is provided with a second sensing sheet C47 for sensing the first position sensor C11 and the second position sensor C12. The first position sensor C11 and the second position sensor C12 are electrically connected to the control center respectively, and the first receiving drive motor C51 is electrically connected to the control center. When the first sensing piece C31 on the first movable plate C3 rises to the side of the first position sensor C11, the second movable plate C4 rises to the highest height, the first position sensor C11 transmits the arrival signal to the control center, and the control center transmits the stop signal to the first material receiving drive motor C51 to stop it; when the second movable plate C4 drives the second sensing piece C47 thereon to descend to the side of the second position sensor C12, the heights of the second movable plate C4 and the first movable plate C3 are the lowest, the second position sensor C12 transmits the arrival signal to the control center, and the control center transmits the stop signal to the first material receiving drive motor C51 to stop it. Through the above settings, precise arrival is achieved. The first position sensor C11 and the second position sensor C12 only show the mounting frame for installing the first position sensor C11 and the second position sensor C12. The first position sensor C11 and the second position sensor C12 are conventional products that can be directly purchased on the market.

[0087] See also Fig.18 Further, a material receiving motor mounting plate C32 is provided on the rear side of the section of movable plate C3, and a second adjustment waist-shaped hole C321 extending along its width direction is provided on the section of movable plate C3, and a third threaded hole corresponding to the second adjustment waist-shaped hole C321 is provided on the section of movable plate C3, and the same second locking screw (not shown in the figure) is provided in the second adjustment waist-shaped hole C321 and the third threaded hole; an engagement adjustment block C33 is provided on the right side of the material receiving motor mounting plate C32, and a first through hole C331 penetrating through the left and right side walls thereof is provided on the engagement adjustment block C33, and a second through hole C331 penetrating through the left and right side walls thereof is provided on the right side wall of the material receiving motor mounting plate C32 A fourth threaded hole C322 corresponding to the first through hole C331 is provided, and an adjusting screw C34 is provided in the first through hole C331, and the end of the adjusting screw C34 is threadedly connected with the fourth threaded hole C322 (the outer diameter of the adjusting screw C34 rod body is smaller than the aperture of the first through hole C331, and the outer diameter of the adjusting screw C34 head is larger than the aperture of the first through hole C331); the meshing degree adjustment block C33 is provided with a fifth threaded hole C332 penetrating the left and right side walls thereof, and a second limiting screw C35 is threadedly connected in the fifth threaded hole C332, and the end of the second limiting screw C35 abuts against the right side wall of the material receiving motor mounting plate C32. The second adjusting waist-shaped hole C321 and the second locking screw are provided so that the material receiving motor mounting plate C32 and a section of the material receiving drive motor C51 provided thereon can move left and right.

[0088] During installation, first fix the material receiving motor mounting plate C32 on a section of movable plate C3 through the second locking screw, and then install the meshing adjustment block C33 on a section of movable plate C3 through screws. When it is necessary to adjust the meshing degree of the material receiving transmission gear and the material receiving transmission rack C52 that are connected to a section of material receiving drive motor C51, it can be achieved by fine-tuning the distance between the material receiving motor mounting plate C32 and the meshing adjustment block C33. The specific operation is as follows: first loosen the second locking screw, the adjusting screw C34 and the second limit screw C35, and manually adjust the depth of the adjusting screw C34 rod body screwed into the fourth threaded hole C322 to move the material receiving motor mounting plate C32 to the left or right a certain distance, and then use a measuring instrument to measure the material receiving motor mounting plate C32. After the distance between the mounting plate C32 and the engagement adjustment block C33 is adjusted to an appropriate distance, the second limit screw C35 is passed through the fifth threaded hole C332, so that the end of the second limit screw C35 abuts against the right side wall of the material receiving motor mounting plate C32, and the position of the material receiving motor mounting plate C32 is positioned. Then, the material receiving motor mounting plate C32 is fixed to a section of the movable plate C3 by the second locking screw to adjust the engagement degree of the material receiving transmission gear and the material receiving transmission rack C52, thereby adjusting the transmission accuracy of a section of the material receiving component C5 to the highest.

[0089] See also Fig.17 Furthermore, the rear side of the fixed plate C2 is provided with a section of material receiving slide rail C21 extending in the height direction thereof, and the front side of the movable plate C3 is provided with a section of material receiving slider C22 slidably connected to the section of material receiving slide rail C21. The section of material receiving slide rail C21 is also provided with two. When installing the section of material receiving slide rail C21, it is also necessary to adjust its flatness and straightness, and ensure that the parallelism of the slide rail installation surface is ≤0.03mm. The above arrangement is used to improve the stability of the movable plate C3 when it rises or falls.

[0090] See also Fig.17 Further, the fixed plate C2 is provided with two upper and lower limit seats C23, a section of anti-collision block (not visible in the figure) is provided between the two limit seats C23, and the anti-collision block is provided on the front side of the movable plate C3. Similarly, the limit seat C23 does not contact the anti-collision block under normal circumstances, and the above arrangement also plays a role in protecting and limiting the movement of the movable plate C3.

[0091] See also Fig.16 Further, the material receiving drive assembly C8 is an inclined material receiving cylinder, the cylinder body of the material receiving cylinder is hinged to the lower part of the rear side surface of the second-stage movable plate C4 through a first hinge seat, and the piston of the material receiving cylinder is hinged to the rear end of the lower surface of the material receiving plate C7 through a second hinge seat; a material receiving seat C81 is provided at the upper part of the rear side surface of the second-stage movable plate C4, and a hinge seat C82 is provided at the upper part of the material receiving seat C81, and another fan blade of the hinge seat C82 is connected to the front end of the lower surface of the material receiving plate C7. The material receiving cylinder rises when the second-stage movable plate C4 rises and falls when it falls. When the output end is in a fully extended state, the material receiving plate C7 is in a horizontal state to support the cutting of the pipe or assist in the unloading of the pipe; when the output end is in a fully retracted state, the material receiving plate C7 is tilted downward to provide guidance for the pipe to be dropped into the unloading rack C200.

[0092] See also Fig.15 and Fig.16 Furthermore, the receiving plate C7 is provided with an avoidance hole extending along its width direction, and a bearing seat C71 is provided at both ends of the avoidance hole, and a heavy-duty roller C72 is rotatably provided between the two bearing seats C71, and the upper part of the heavy-duty roller C72 protrudes from the avoidance hole. The avoidance hole is used to install the bearing seat C71 and the heavy-duty roller C72, and by limiting the height of the heavy-duty roller C72, it plays a role in supporting the cutting of the pipe and reducing the friction of the large and heavy pipe during the axial movement.

[0093] See also Fig.16Furthermore, a material receiving height adjustment plate C48 is provided on the rear side surface of the second-stage movable plate C4, and the cylinder body of the material receiving cylinder is provided on the rear side surface of the material receiving height adjustment plate C48; the material receiving height adjustment plate C48 is provided with a third adjustment waist-shaped hole (not shown in the figure) extending along its height direction, and the second-stage movable plate C4 is provided with a sixth threaded hole (not shown in the figure) corresponding to the third adjustment waist-shaped hole, and the same third locking screw is provided in the third adjustment waist-shaped hole and the sixth threaded hole; a material receiving height adjustment block C49 is provided above the material receiving height adjustment plate C48, and the material receiving height adjustment block C49 is provided with a second through hole running through the upper and lower side walls thereof, and the material receiving height adjustment plate C48 is provided with a seventh threaded hole corresponding to the second through hole, and the second through hole is provided with a third limiting screw, and the end of the third limiting screw is threadedly connected with the seventh threaded hole. Similarly, by fine-tuning the position of the material receiving height adjustment plate C48 relative to the second-stage movable plate C4, the inclination angle of the material receiving cylinder is fine-tuned, which is equivalent to fine-tuning the inclination angle of the material receiving plate C7.

[0094] See also Fig.14 and Fig. 22 Further, two opposite material head bearing seats C91 (i.e., material receiving module C100 No. 1) are arranged on the left side of the lower surface of the material receiving plate C7 at the far left end, and a material head rotating shaft C92 is arranged between the two material head bearing seats C91, and a material head folding plate C9 is arranged around the outer periphery of the material head rotating shaft C92, and the height of the material head folding plate C9 is level with the height of the material receiving plate C7, and a material head cylinder C93 is also arranged on the lower surface of the material receiving plate C7, and the output end of the material head cylinder C93 is connected to the lower surface of the material head folding plate C9; a material head hopper C94 is arranged below the material head folding plate C9, and a short material hopper C73 is arranged behind the material receiving plate C7. That is, the material receiving module C100 at the far left end is used to distinguish between material heads and short material finished products. In this embodiment, there may be short materials and material heads after the pipe is cut, and the control center can automatically judge and distinguish whether there are material heads that need to be unloaded. The short material and the material head are synchronously unloaded onto the material receiving plate C7 and the material head folding plate C9 (at this time, the output end of the material head cylinder C93 is extended, and the output end of the material receiving cylinder is extended, so that the material receiving plate C7 and the material head folding plate C9 are both in a horizontal state), and then the first-stage movable plate C3 and the second-stage movable plate C4 drive the material receiving plate C7 and the material head folding plate C9 to descend to the lowest position, and then the output end of the material head cylinder C93 changes from an extended state to a contracted state. During the contraction process, the material head folding plate C9 is driven to fold downward 90° under the guidance of the material head rotating shaft C92, so that the material head freely falls into the material head hopper C94 located below the material head folding plate C9. After the unloading of the material head is completed, the output end of the material receiving cylinder is then contracted, so that the material receiving plate C7 tilts downward, and the short material is unloaded into the short material hopper C73.

[0095] See also Fig.14 and Fig. 22 Furthermore, the material head folding plate C9 is provided with a laser air-avoiding opening C95 extending along the width direction thereof. Since the No. 1 material receiving module C100 is located below the laser cutting head A10, the laser air-avoiding opening C95 can effectively prevent the material head folding plate C9 from being cut during high-energy laser cutting.

[0096] See also Fig.14 Furthermore, both ends of the material rack C200 are provided with stopper posts C201, and the upper surface of the material rack C200 is provided with a buffer rubber pad C202. The stopper posts C201 are provided to limit the position of the pipes, prevent the pipes from rolling and falling, and ensure safety performance. Since the pipes or profiles on the tilted receiving plate C7 fall onto the material rack C200 under the action of gravity, the large and heavy pipes have a greater impact force on the material rack C200. The buffer rubber pad C202 is provided to safely buffer the material and protect the surface of the pipes or profiles to prevent hard collisions with the material rack C200.

[0097] See also Fig.23 Furthermore, the three-chuck laser tube cutting machine D includes a base 100, a laser cutting assembly A arranged in the middle of the base 100, and a first chuck 200, a second chuck 300 and a third chuck 400 arranged in sequence from left to right and slidably arranged on the base 100; the first chuck 200, the second chuck 300 and the third chuck 400 are all provided with a steering mechanism 700 for driving them to rotate and a sliding mechanism 500 for driving them to reciprocate along the length direction of the base 100; an exhaust port 601 is provided in the middle of the base 100, and an exhaust mechanism 600 is provided in the exhaust port 601, and the exhaust mechanism 600 is used to generate negative pressure.

[0098] In actual use, first, the second chuck 300 and the third chuck 400 are moved to the left side of the laser cutting assembly A (i.e., moved to the loading area), the first chuck 200 and the third chuck 400 clamp the two ends of the tube, and the second chuck 300 clamps the middle part of the tube; then the first chuck 200, the second chuck 300 and the third chuck 400 drive the tube to move to the right synchronously, and the head and the middle part of the tube are laser cut during the movement (at this time, the first chuck 200 and the second chuck 300 are both located on the left side of the laser cutting assembly A, and the third chuck 200 is located on the left side of the laser cutting assembly A). 300 is located on the right side of the laser cutting assembly A); then the first chuck 200, the second chuck 300 and the third chuck 400 drive the pipe to continue to move to the right, the second chuck 300 and the third chuck 400 clamp the pipe (the first chuck 200 does not clamp the pipe, and the first chuck 200 is located on the left side of the laser cutting assembly A, and the second chuck 300 and the third chuck 400 are both located on the right side of the laser cutting assembly A), and the rear part and the tail end of the pipe are cut to achieve zero tailing cutting, which is suitable for high-precision cutting of large and heavy pipes. In the process of cutting the pipe by the laser cutting assembly A, a large amount of dust and fine chips are generated and are promptly extracted through the exhaust mechanism 600 in the exhaust port 601.

[0099] The three-chuck laser tube cutting machine D can cut round tubes with a diameter of 50-380mm and special-shaped tubes with a diagonal of ≤380mm. The effective cutting stroke is twelve meters. It can be used for loading and connecting tubes of different lengths such as three meters, six meters, nine meters, and twelve meters. It can cut whole tubes of nine meters. The load-bearing capacity of a single tube is 1500kg.

[0100] See also Fig.24 Further, the exhaust mechanism 600 includes an exhaust box 602, a plurality of exhaust holes 603 arranged on the side of the exhaust box 602 facing the base 100, and an exhaust interface 604 arranged on the side of the exhaust box 602 away from the base 100, and the exhaust interface 604 is connected to the negative pressure generator. The volume of the exhaust box 602 is larger than the width of the exhaust port 601, so that the exhaust box 602 covers the exhaust port 601, ensuring that dust and fine debris enter the exhaust box 602 through the exhaust holes 603 and then are sucked away by the negative pressure generator. Specifically, a plurality of exhaust ports 601 may be provided on the base 100, and the plurality of exhaust ports 601 are provided up and down, each of the plurality of exhaust ports 601 corresponds to an exhaust box 602, and the plurality of exhaust boxes 602 are connected to the same negative pressure generator through a pipeline, so that the dust generated when the laser cutting component A moves up and down can be sucked away by the corresponding exhaust mechanism 600, thereby ensuring the dust extraction effect.

[0101] See also Fig.25 and Fig.26Furthermore, each of the steering mechanisms 700 includes a side carriage 701, a steering drive motor 702 disposed on the side carriage 701, a steering gear (not shown) connected to the output end of the steering drive motor 702, a driving gear 703 disposed on the outer peripheral wall of the corresponding chuck, and a clamp 704 disposed on the corresponding chuck; the steering gear is meshed with the driving gear 703. During actual operation, the steering drive motor 702 rotates forward, driving the steering gear to rotate forward, so that the driving gear 703 meshed with the steering drive motor 702 drives the clamp 704 to rotate forward, and the pipe rotates forward synchronously; conversely, when the steering drive motor 702 rotates reversely, the clamp 704 drives the pipe to rotate reversely. Each of the steering drive motors 702 is electrically connected to the control center, and multiple chucks are controlled to operate synchronously or individually through the transmission of signals from the control center.

[0102] See also Fig.23 Specifically, the clamp 704 of the first chuck 200 is a four-claw clamping chuck, which can position the two ends of the pipe by closing the claws to clamp the outer wall of the pipe or opening the claws to press against the inner wall of the pipe. The second chuck 300 and the third chuck 400 are also symmetrically arranged, and are both roller chucks, which can clamp the pipe by closing the rollers to press against the outer wall of the pipe.

[0103] See also Fig.25 and Fig.26 Further, the sliding mechanism 500 includes a sliding drive motor 501 respectively arranged on the side slide 701 of the first chuck 200, the second chuck 300 and the third chuck 400, a sliding gear (not shown in the figure) drivingly connected to the output end of the sliding drive motor 501, and a sliding rack 502 arranged on the base 100 and extending along the length direction thereof, and the sliding gear is meshed with the sliding rack 502. The sliding drive motor 501 rotates forward or reversely, driving the sliding gear to rotate forward or reversely, so that the side slide 701 moves left and right under the guidance of the sliding rack 502.

[0104] See also Fig.25 and Fig.26 Further, the base 100 is provided with a sliding rail 503 extending along the length direction thereof, and a sliding block 504 is slidably provided on the sliding rail 503, and the side wall of the sliding block 504 is connected to the side sliding frame 701. Specifically, the side sliding frame 701 is L-shaped, and the sliding rails 503 are provided in three numbers. The above arrangement is used to improve the moving stability of the side sliding frame 701.

[0105] See also Fig.23 and Fig.25Furthermore, the base 100 is provided with a plurality of anti-collision seats 505 along its length direction, and the first chuck 200, the second chuck 300 and the third chuck 400 are provided with anti-collision plates (not visible in the figure). Under normal circumstances, the anti-collision plates will not contact the anti-collision seats 505, and the speed and number of revolutions of the sliding drive motor 501 are controlled by programming to determine the movement stroke of the first chuck 200, the second chuck 300 and the third chuck 400; the anti-collision seats 505 and the anti-collision plates are used to prevent the sliding drive motor 501 from malfunctioning, and play a role in protecting multiple chucks.

[0106] See also Fig.23 Furthermore, the base 100 is formed by splicing a plurality of base frames. The plurality of base frames can be added or reduced in number according to the customer's requirements for cutting the length of the pipe. Fig. 27 , a C-shaped block 101 is provided at the end of the rear side surface of the chassis, and a splicing positioning block 102 is provided at the end of the other rear side surface of the chassis, and the splicing positioning block 102 is arranged in the C-shaped groove of the C-shaped block 101, and the C-shaped block 101 is provided with a first splicing through hole 1011 penetrating the left and right side walls thereof, and the splicing positioning block 102 is provided with a first splicing threaded hole 1021 penetrating the left and right side walls thereof, and the first splicing through hole 1011 and the first splicing threaded hole 1021 are provided with the same first splicing locking screw (not shown in the figure); please refer to Fig.28 , a first L-shaped block 103 is disposed at the end of the front side of the chassis, a second L-shaped block 104 is disposed at the end of the front side of the other chassis, the first L-shaped block 103 is provided with a second splicing through hole 1031 penetrating the left and right side walls thereof, the second L-shaped block 104 is provided with a third splicing through hole 1041 penetrating the left and right side walls thereof, the second splicing through hole 1031 and the third splicing through hole 1041 are provided with a second splicing locking screw, the end of the second splicing locking screw is threadedly connected with the first splicing locking nut (not shown in the figure). When assembling, the two chassis are brought close to each other, the splicing positioning block 102 is set in the C-shaped groove, the first splicing locking screw is passed through the first splicing through hole 1011 and is threadedly connected with the first splicing threaded hole 1021, so as to achieve the fixation of the C-shaped block 101 and the splicing positioning block 102. When the two base frames are close to each other, the first L-shaped block 103 and the second L-shaped block 104 are close to each other, and the second splicing locking screw is sequentially passed through the second splicing through hole 1031 and the third splicing through hole 1041 or sequentially passed through the third splicing through hole 1041 and the second splicing through hole 1031, and then the second splicing locking screw is locked by the first splicing locking nut to fix the first L-shaped block 103 and the second L-shaped block 104, thereby completing the assembly of the two base frames. The above arrangement is very convenient for assembly and disassembly, and is convenient for transportation after disassembly, thereby reducing the transportation cost.

[0107] See also Fig.28 Furthermore, a plurality of wiring holes 105 for wiring are provided on the front side of the base 100. The wiring holes 105 are provided to guide and store cables, optical fibers, etc., thereby improving the neatness of the three-chuck laser tube cutting machine D.

[0108] See also Fig.23 , Fig.29 and Fig.30 Furthermore, the laser cutting assembly A includes a crossbeam bracket A1, a transverse sliding bracket A2 slidably arranged on the crossbeam bracket A1, a laser cutting head A10 arranged on the rear side of the transverse sliding bracket A2, a lifting drive mechanism for driving the laser cutting head A10 to move up and down, and a transverse driving motor A3 arranged on the transverse sliding bracket A2. The crossbeam bracket A1 is provided with a transverse rack A11 extending along its length direction. The output end of the transverse driving motor A3 is transmission-connected to the reducer A4. The main shaft of the reducer A4 is interference-fitted with the transverse gear A6 through a spline A5, and the transverse gear A6 is meshed with the transverse rack A11.

[0109] Specifically, the lifting drive mechanism includes a lifting drive motor disposed on the rear side of the lateral sliding bracket A2, a lead screw connected to the lifting drive motor, and a lead screw nut disposed on the lateral sliding bracket A2, wherein the lead screw and the lead screw nut are threadedly connected, and the side of the lead screw nut is connected to the laser cutting head A10. The laser cutting head A10 is driven to rise or fall by the forward or reverse rotation of the lifting drive motor, and cooperates with a plurality of chucks to perform laser cutting on the pipe.

[0110] An external spline is arranged on the main shaft of the reducer A4, and an internal spline is arranged in the middle of the transverse gear A6. The main shaft and the transverse gear A6 spline A5 are connected. Through the hot-installation process, the spline A5 and the transverse gear A6 are interference fit, so that the transverse gear A6 can have a smaller rotation speed and can transmit a larger mechanical torque, which can greatly improve the transmission accuracy between the transverse drive motor A3 and the transverse rack A11, thereby improving the precision of the laser cutting head.

[0111] See also Fig.29 and Fig.30Furthermore, a transverse slide rail A12 parallel to the transverse rack A11 is provided on the side wall of the crossbeam bracket A1, and a transverse slider A1 is slidably provided on the transverse slide rail A12, and the front side wall of the transverse slider A1 is connected to the rear side wall of the transverse sliding bracket A2. The transverse slide rail A12 and the transverse slider A1 are provided to improve the moving stability of the transverse sliding bracket A2, thereby improving the moving stability of the laser cutting head provided thereon. In this embodiment, the stroke of the transverse sliding bracket A2 is about 570 mm, and a variety of chucks can be used universally, thereby improving the versatility and practicality of the laser cutting assembly A.

[0112] In summary, the present invention is provided with a three-chuck laser tube cutting machine D for clamping and cutting tubes, a plurality of material storage stations B100 for storing tubes, a transverse driving assembly B5 for driving the transverse sliding plate B2 to move transversely, a first-stage lifting assembly B6 for driving a first-stage lifting plate B3 to rise or fall, a second-stage lifting assembly B7 for driving a second-stage lifting plate B4 to rise when it rises or to fall when it falls following the first-stage lifting plate B3, and a material receiving assembly B8 for supporting the tubes; a plurality of material receiving modules C100 and a plurality of material unloading racks C200 are provided, which can be suitable for unloading tubes of different lengths; and a material receiving assembly B8 for installing and fixing the tubes. The material receiving base frame C1 of plate C2, the first-stage material receiving component C5 that drives the first-stage movable plate C3 to rise or fall, the second-stage material receiving component C6 that drives the second-stage movable plate C4 to rise when it rises or fall when it falls following the first-stage movable plate C3, and the material receiving drive component C8 used to make the material receiving plate C7 horizontal or inclined, so that the loading device B and the material receiving device C both have the function of up and down follow-up support, realize the support stroke of the two-stage rise or fall with the lowest compression ratio, can realize a larger stroke in a narrow space, facilitate the loading and unloading height requirements of the three-chuck laser tube cutting machine D, and are conducive to the rational use of space.

[0113] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0114] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0115] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0116] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A three-chuck laser tube cutting system, comprising a three-chuck laser tube cutting machine, a feeding device and a receiving device arranged behind the three-chuck laser tube cutting machine, characterized in that: The feeding device includes a plurality of feeding racks arranged at intervals, a plurality of material storage stations respectively arranged on the upper parts of the plurality of feeding racks and arranged along the length direction thereof, and a multiple-segment stroke support mechanism, wherein the multiple-segment stroke support mechanism includes a transverse sliding plate which can slide back and forth laterally on the side wall of the feeding rack, a first-stage lifting sliding plate which can be lifted up and down on the transverse sliding plate, a second-stage lifting sliding plate which can be lifted up and down on the first-stage lifting sliding plate, a transverse driving component for driving the transverse sliding plate to move laterally, a first-stage lifting component for driving the first-stage lifting sliding plate to rise or fall, a second-stage lifting component for driving the second-stage lifting sliding plate to rise or fall following the first-stage lifting sliding plate, and a second-stage lifting component arranged on the second-stage lifting sliding plate. A material receiving assembly on the slide plate, the material receiving assembly is used to support the pipe; the material receiving device includes a plurality of material rack modules arranged at intervals and a plurality of unloading racks arranged at intervals behind the plurality of material rack modules, each material receiving module includes a material receiving base frame, a fixed plate arranged on the material receiving base frame, a movable plate which can be lifted up and down on the fixed plate, a second movable plate which can be lifted up and down on the first movable plate, a first material receiving assembly for driving the first movable plate to rise and fall, and a second material receiving assembly for driving the second movable plate to rise and fall following the first movable plate to rise and fall, the top of the second movable plate is hinged with a material receiving plate, and the second movable plate is provided with a material receiving plate for driving When the material receiving plate is horizontal, it supports the pipe, or when it is tilted backward, it guides the pipe to the material receiving driving assembly on the unloading rack located behind the material receiving base frame; the two-stage lifting assembly includes a first loading positioning block arranged on the right side of the transverse sliding slide, a second loading positioning block arranged on the right side of the second-stage lifting slide, a loading positioning shaft arranged on the upper part of the first lifting slide, a loading sprocket wheel rotatably arranged on the loading positioning shaft, and a loading chain connected to the first loading positioning block and the second loading positioning block at both ends respectively, the loading chain is meshed with the loading sprocket wheel; the first loading positioning block is provided with a loading waist-shaped hole extending along its height direction, and the transverse sliding The slide plate is provided with a first feeding threaded hole corresponding to the feeding waist-shaped hole, and a feeding locking screw is provided in the feeding waist-shaped hole and the first feeding threaded hole; a feeding adjustment block is provided below the first feeding positioning block, and a feeding through hole and a second feeding threaded hole are provided on the feeding adjustment block, and a third feeding threaded hole corresponding to the feeding through hole is provided at the lower part of the first feeding positioning block, and the same feeding adjustment screw is provided in the feeding through hole and the third feeding threaded hole, and a feeding lifting screw is threadedly connected in the second feeding threaded hole, and the end of the feeding lifting screw abuts against the lower surface of the first feeding positioning block;The multi-stage stroke support mechanism also includes a clamping positioning assembly arranged on the left side of the lifting slide, the clamping positioning assembly includes a cylinder support, a clamping cylinder whose output end passes through the cylinder support, a traction block connected to the output end of the clamping cylinder, two pull rods hinged to the traction block, and clamping blocks respectively hinged to the ends of the two pull rods, and the two clamping blocks are used to clamp the pipe; the two-stage material connection assembly includes a first material connection positioning block arranged on the front side of the fixed plate, a second material connection positioning block arranged on the front side of the two-stage movable plate, two material connection bearing seats arranged on the two side walls of the upper part of the first movable plate, a rotating shaft rotatably arranged between the two material connection bearing seats, a material connection sprocket arranged on the two ends of the rotating shaft, and a material connection chain with two ends respectively connected to the first material connection positioning block and the second material connection positioning block, and the middle position of the material connection chain is meshed with the corresponding material connection sprocket for transmission. ; 2. The three-chuck laser tube cutting system according to claim 1 is characterized in that: Each of the material storage stations includes a material storage bin and a hook-shaped groove arranged on the upper part of the material storage bin, the short side of the hook-shaped groove extends toward the three-chuck laser tube cutting machine, and the long side of the hook-shaped groove extends away from the three-chuck laser tube cutting machine.

3. The three-chuck laser tube cutting system according to claim 2 is characterized in that: The included angle α of each hook-shaped groove is 90°, the included angle β between the short side of each hook-shaped groove and the horizontal plane is 79°, and the included angle γ between the long side of each hook-shaped groove and the horizontal plane is 11°.

4. The three-chuck laser tube cutting system according to claim 1, characterized in that: A tension adjustment block is provided on the front side of the fixed plate, and the tension adjustment block is arranged above the first material receiving and positioning block; a first adjustment waist-shaped hole extending along its height direction is provided on the first material receiving and positioning block, and a first threaded hole corresponding to the first adjustment waist-shaped hole is provided on the fixed plate, and the same first locking screw is provided in the first adjustment waist-shaped hole and the first threaded hole; a second threaded hole penetrating the upper and lower side walls thereof is provided on the tension adjustment block, and a first limiting screw is threadedly connected in the second threaded hole, and the end of the first limiting screw abuts against the upper surface of the first material receiving and positioning block.

5. The three-chuck laser tube cutting system according to claim 1, characterized in that: The material receiving drive assembly is an inclined material receiving cylinder, the cylinder body of the material receiving cylinder is hinged to the lower part of the rear side surface of the two-stage movable plate through a first hinge seat, and the piston of the material receiving cylinder is hinged to the rear end of the lower surface of the material receiving plate through a second hinge seat; a material receiving seat is provided at the upper part of the rear side surface of the two-stage movable plate, and a hinge seat is provided at the upper part of the material receiving seat, and the other fan blade of the hinge seat is connected to the front end of the lower surface of the material receiving plate.

6. The three-chuck laser tube cutting system according to claim 1, characterized in that: Two opposite material head bearing seats are arranged on the left side of the lower surface of the material receiving plate located at the leftmost end, a material head rotating shaft is arranged between the two material head bearing seats, a material head folding plate is arranged around the outer circumference of the material head rotating shaft, the height of the material head folding plate is flush with the height of the material receiving plate, a material head cylinder is also arranged on the lower surface of the material receiving plate, the output end of the material head cylinder is connected to the lower surface of the material head folding plate; a material head hopper is arranged below the material head folding plate, and a short material hopper is arranged behind the material receiving plate; a laser air avoidance opening extending along the width direction thereof is arranged on the material head folding plate.

7. The three-chuck laser tube cutting system according to claim 1, characterized in that: The three-chuck laser tube cutting machine includes a base, a laser cutting assembly arranged in the middle of the base, and a first chuck, a second chuck and a third chuck arranged in sequence from left to right and slidably arranged on the base; the first chuck, the second chuck and the third chuck are all provided with a steering mechanism for driving them to rotate and a sliding mechanism for driving them to reciprocate along the length direction of the base; an exhaust port is provided in the middle of the base, and an exhaust mechanism is provided in the exhaust port, and the exhaust mechanism is used to generate negative pressure.

8. The three-chuck laser tube cutting system according to claim 7, characterized in that: The base is formed by splicing multiple base frames, and a C-shaped block is provided at an end of the rear side surface of the base frame, and a splicing positioning block is provided at an end of the rear side surface of the other base frame, and the splicing positioning block is arranged in the C-shaped groove of the C-shaped block, and the C-shaped block is provided with a first splicing through hole that passes through its left and right side walls, and the splicing positioning block is provided with a first splicing threaded hole that passes through its left and right side walls, and the same first splicing locking screw is provided in the first splicing through hole and the first splicing threaded hole; a first L-shaped block is provided at an end of the front side surface of the base frame, and a second L-shaped block is provided at an end of the front side surface of the other base frame, the first L-shaped block is provided with a second splicing through hole that passes through its left and right side walls, and the second L-shaped block is provided with a third splicing through hole that passes through its left and right side walls, and the second splicing through hole and the third splicing through hole are provided with a second splicing locking screw, and the end of the second splicing locking screw is threadedly connected with the first splicing locking nut.

Images