Metal pipe fitting separation machining laser cutting machine

Abstract

The invention relates to the technical field of laser cutting equipment, and discloses a metal pipe fitting separation machining laser cutting machine which is used for solving the problem that indentations are likely to appear on a metal pipe fitting due to point contact between a positioning piece and the metal pipe fitting. A moving groove is formed in a supporting shaft of a positioning piece, a sliding sleeve and two supporting bags are arranged on the moving groove in a sleeving mode, and the supporting bags are filled with extrusion liquid; when the supporting shaft of the positioning piece clamps the round metal pipe fitting, the supporting bag on the supporting shaft firstly makes contact with the metal pipe fitting till the metal pipe fitting extrudes the supporting bag, one side of the metal pipe fitting is tightly attached to the side wall of the supporting shaft, at the moment, the metal pipe fitting makes contact with the supporting shaft and the supporting bag, point contact is changed into face contact, and the metal pipe fitting is clamped through the supporting bag. Therefore, extrusion of the supporting shaft to the metal pipe fitting is reduced, and the metal pipe fitting is prevented from being extruded by the supporting shaft to generate indentations.

Description

Technical Field

[0001] The present application relates to the technical field of laser cutting equipment, and in particular to a laser cutting machine for separating and processing metal pipes. Background Art

[0002] Metal pipe fittings mainly refer to pipe accessories that play a role in penetration and sealing in the connection and branching of metal pipes. Metal pipe fittings play an important role in the fields of construction, petroleum, chemical industry, etc. There are many types of metal pipe fittings with different manufacturing processes. You can choose the appropriate metal pipe fittings according to specific needs. When producing metal pipe fittings, since the length of metal pipe fittings is fixed, a laser cutting machine is needed to split the metal pipe fittings.

[0003] The laser cutting machine for metal pipe fittings needs to fix the metal pipe fittings on the clamping device before cutting the metal pipe fittings. After the metal pipe fittings are fixed, the metal pipe fittings are cut by the clamping device and the laser cutting device. However, the clamping device used in the existing laser cutting machine is a structure in which two groups of two positioning parts are linked. When the positioning parts fix the circular metal pipe fittings, each positioning part is in point contact with the metal pipe fitting. When the positioning parts clamp the metal pipe fittings, the surface of the metal pipe fittings will be squeezed by the positioning parts, and indentations are likely to appear on the surface of the metal pipe fittings, affecting the quality of the produced metal pipe fittings. Summary of the invention

[0004] The present application proposes a laser cutting machine for separating and processing metal pipes, which has the advantages of reducing the squeezing of metal pipes by positioning parts and preventing indentations on metal pipes, and is used to solve the problem of easy indentations on metal pipes caused by point contact between positioning parts and metal pipes.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a laser cutting machine for separating and processing metal pipes, comprising a base, a bracket, a laser cutting device and a clamping device, wherein the clamping device comprises a movable seat, a shell, a driving cylinder, a power gear, a transmission gear, a slider and a positioning member, wherein the positioning member comprises: a Y-shaped frame, comprising a straight rod and two arms, the straight rod is fixedly mounted on the slider, and the arms face the center line of the shell; a support shaft, the two ends of which are respectively movably mounted on the top ends of the side walls of the two arms of the support shaft, and a movable groove is provided on the outer surface of the support shaft; a sliding sleeve, which is movably mounted on the outside of the movable groove; two support bags, which are fixedly mounted on the outside of the sliding sleeve and symmetrically arranged, and the support bags are filled with extrusion liquid.

[0006] Furthermore, a mounting groove is provided in the support shaft, and a spiral groove is provided on the outer surface of the support shaft, and the mounting groove is provided with: two support springs, which are respectively fixedly connected to the two ends of the mounting groove; two limit plates, which are respectively fixedly connected to the other end of the support spring; two storage bags, which are respectively fixedly installed on one side of the limit plate close to the middle of the mounting groove, and the two storage bags are respectively connected to the two support bags on the outside of the support shaft through connecting tubes; a dividing block, which is slidably installed in the middle position of the spiral groove, and its two ends are respectively fixedly connected to the storage bags on both sides, and the dividing block is fixedly connected to the sliding sleeve through a connecting block.

[0007] Furthermore, the storage capsules, connecting tubes and supporting capsules in the same group are filled with the same volume of extrusion liquid.

[0008] Furthermore, the support springs at both ends of the mounting slot are identical, and the support springs at both ends are always in a compressed state.

[0009] Furthermore, the volume of the support bag after being filled with the extrusion liquid is constant, and the support bag will not flexibly expand when squeezed by external force; the storage bag is a telescopic bag, and after the storage bag is filled with the extrusion liquid, the extrusion liquid continues to be added, and the storage bag will extend in the axial direction.

[0010] Furthermore, the length of the movable groove is greater than the length of the sliding sleeve.

[0011] Furthermore, a plurality of permanent magnetic plates are arranged in an array on the inner wall of the support bag close to one side of the sliding sleeve, and a plurality of knocking grooves are equidistantly provided on the two arms of the Y-shaped frame toward the center line of the support shaft, a connecting spring is fixedly connected to the bottom end of the knocking groove, a knocking rod is fixedly connected to the other end of the connecting spring, a knocking ball is embedded in the end of the knocking rod extending out of the knocking groove, and the knocking ball is a permanent magnet.

[0012] Furthermore, the magnetic poles of two adjacent permanent magnet plates facing outwards are opposite.

[0013] Furthermore, the distance between the opening of the knocking groove and the supporting capsule is smaller than the length of the knocking rod.

[0014] This application has the following beneficial effects:

[0015] 1. The present application provides a laser cutting machine for separating and processing metal pipes, wherein a movable groove is opened on the support shaft of a positioning member, and a sliding sleeve and two support bags are sleeved on the movable groove, and the support bags are filled with extrusion liquid; when the support shaft of the positioning member clamps the circular metal pipe, the support bag on the support shaft first contacts the metal pipe until the metal pipe squeezes the support bag, so that one side of the metal pipe is tightly attached to the side wall of the support shaft. At this time, the metal pipe contacts the support shaft and the support bag, and the point contact is changed to surface contact, thereby reducing the squeezing of the metal pipe by the support shaft and preventing the metal pipe from being squeezed by the support shaft to produce indentations.

[0016] 2. The present application provides a laser cutting machine for separating and processing metal pipe fittings, wherein an installation groove is opened in a support shaft, in which two groups of support springs, limit plates, storage bags and separation blocks are symmetrically arranged, and the two storage bags are respectively connected with the two support bags on the outside through connecting tubes, and the separation block is fixedly connected with the sliding sleeve through a connecting block; when the support shaft is used to clamp the metal pipe fitting, the support bag on the outside of the support shaft contacts the metal pipe fitting, and when the metal pipe fitting is offset, the metal pipe fitting squeezes the support bags on both sides to different degrees, and the two support bags squeeze out different amounts of extrusion liquid through the connecting tube, thereby causing different amounts of expansion of the storage bag, thereby pushing the separation block to drive the connecting block, the sliding sleeve and the support bag to move in the axial direction of the support shaft, so that the metal pipe fitting on the outside of the support bag is in the middle position of the support shaft, thereby preventing the metal pipe fitting from sliding friction with the previous group of support shafts when another group of support shafts clamps the metal pipe fitting, thereby damaging the surface of the metal pipe fitting.

[0017] 3. The present application provides a laser cutting machine for separating and processing metal pipe fittings, which comprises a permanent magnet plate array on the inner wall of a support capsule, wherein adjacent permanent magnet plates have opposite magnetic poles, and a Y-shaped frame is provided with knocking grooves at equal intervals, wherein a connecting spring, a knocking rod and a knocking ball are provided in the knocking groove, and the knocking ball is a permanent magnet; when fixing the metal pipe fitting, due to the different degrees of squeezing of the support capsule, the support spring, the storage capsule and the separator block move in the installation groove, so that the sleeve and the support capsule move at the same time, and the position of the metal pipe fitting is adjusted; during the movement of the sleeve and the support capsule, the separator block, the connecting block and the sleeve rotate around the spiral groove, and the permanent magnet plate in the support capsule generates magnetic attraction or repulsion with the knocking ball, so that the knocking ball intermittently knocks on the outer wall of the support capsule, causing the support capsule to vibrate, and the metal slag on the outer wall of the support capsule is shaken off by the vibrating support capsule, thereby preventing the metal slag on the support capsule from scratching the metal pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0019] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping device of the present invention;

[0022] Figure 3 is a cross-sectional view of the clamping device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the positioning member of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the positioning member of the present invention;

[0025] Figure 6 It is a schematic diagram of the internal structure of the support shaft of the present invention;

[0026] Figure 7 It is a cross-sectional view of the positioning member of the present invention.

[0027] In the figure: 1, base; 101, guide rail; 2, bracket; 3, laser cutting device; 4, clamping device; 401, moving seat; 402, shell; 403, slide groove; 404, driving cylinder; 405, power gear; 406, transmission gear; 407, slider; 408, positioning piece; 409, Y-shaped frame; 410, supporting shaft; 411, moving groove; 412, sliding sleeve; 413, supporting capsule; 414, mounting groove; 415, spiral groove; 416, supporting spring; 417, limiting plate; 418, storage capsule; 419, connecting pipe; 420, partition block; 421, connecting block; 422, permanent magnet plate; 423, knocking groove; 424, connecting spring; 425, knocking rod; 426, knocking ball. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Embodiment 1

[0030] See also Figure 1 A laser cutting machine for separating and processing metal pipe fittings comprises a base 1, a bracket 2, a laser cutting device 3 and a clamping device 4. Two parallel guide rails 101 are fixedly installed on the top of the base 1. A bracket 2 is slidably provided at one end of the base 1. The bracket 2 can slide on the guide rail 101. A laser cutting device 3 is movably provided on one side of the bracket 2 close to the middle position of the base 1. Two clamping devices 4 are slidably provided on the guide rail 101 at the top of the base 1. The clamping device 4 is used to fix the metal pipe fittings.

[0031] See also Figure 2 and Figure 3The clamping device 4 includes a moving seat 401, a shell 402, a driving cylinder 404, a power gear 405, a transmission gear 406, a slider 407 and a positioning member 408. The bottom end of the moving seat 401 is slidably mounted on the two guide rails 101 at the top of the base 1. The moving seat 401 is movably provided with a shell 402. The shell 402 is provided with four slide grooves 403 facing the center line of the shell 402 in an annular array. The inner wall of the shell 402 is provided with four driving cylinders 404 in an annular array, and the driving cylinder 404 is located between the two slide grooves 403. One end of the driving cylinder 404 is hinged to the inner wall of the shell 402, and the other end of the driving cylinder 404 is eccentrically hinged to the power gear 405. The cylinder 404 can drive the power gear 405 to rotate, and a slider 407 is slidably installed in the slide groove 403. One end of the slider 407 is in the shell 402, and the other end of the slider 407 extends out of the slide groove 403. The side wall of the slider 407 at one end in the shell 402 is provided with teeth, and the teeth of the slider 407 are connected to the power gear 405 through the transmission gear 406. The four sliders 407 are divided into two groups, and the two opposite sliders 407 are a group. The lengths of the two groups of sliders 407 extending out of the shell 402 are different, and the lengths of the sliders 407 in the same group are the same. A positioning piece 408 is fixedly installed at one end of the slider 407 outside the shell 402, and the positioning piece 408 is used to clamp the metal pipe fittings.

[0032] See also Figure 4 and Figure 5 The positioning member 408 includes a Y-shaped frame 409, a support shaft 410, a sliding sleeve 412 and a support capsule 413. The Y-shaped frame 409 includes a straight rod and two arms. The straight rod of the Y-shaped frame 409 is fixedly installed on the end of the slider 407 on the outside of the shell 402. The arm of the Y-shaped frame 409 faces the center line of the shell 402. A support shaft 410 is movably arranged between the two arms of the Y-shaped frame 409. The two ends of the support shaft 410 are movably sleeved on the top ends of the side walls of the two arms of the support shaft 410 respectively. A movable groove 411 is opened on the outer surface of the support shaft 410. A sliding sleeve 412 is movably sleeved on the outer side of the movable groove 411. Two symmetrically arranged support capsules 413 are fixedly sleeved on the outer side of the sliding sleeve 412. The support capsules 413 are filled with extrusion liquid.

[0033] The working principle of the first embodiment of the present invention is as follows:

[0034] See also Figure 1-Figure 5When the laser cutting machine fixes the circular metal pipe, the circular metal pipe is inserted into the middle position of the two clamping devices 4. At this time, by starting the two opposite driving cylinders 404, the two opposite driving cylinders 404 drive the power gear 405 to rotate, and through the transmission of the teeth on the transmission gear 406 and the slider 407, the two opposite sliders 407 and the positioning piece 408 on the slider 407 are pushed to clamp the circular metal pipe. In this process, the circular metal pipe first contacts the support capsule 413, and the circular metal pipe contacts the support capsule 414. 13 is reversely extruded until the side wall of the circular metal pipe is squeezed by the support capsule 413 and then rigidly contacts the side wall of the support shaft 410. At this time, the circular metal pipe is not only clamped by the support shaft 410, but also clamped by the support capsule 413. The point contact between the circular metal pipe and the support shaft 410 is changed to the surface contact between the circular metal pipe and the support shaft 410 and the support capsule 413, thereby reducing the squeezing of the circular metal pipe by the support shaft 410, preventing the metal pipe from being squeezed by the support shaft 410 to produce indentations, and ensuring the quality of the circular metal pipe.

[0035] Embodiment 2

[0036] Embodiment 2 is a further improvement on embodiment 1.

[0037] The difference from the first embodiment is that, please refer to Figure 4-Figure 6 A mounting groove 414 is provided in the support shaft 410, and the mounting groove 414 is on the same straight line as the center line of the support shaft 410. A spiral groove 415 is provided on the outer surface of the support shaft 410, and the spiral groove 415 is connected to the mounting groove 414. Support springs 416 are fixedly connected at both ends of the mounting groove 414, and the other ends of the two support springs 416 are respectively fixedly connected to limit plates 417. Storage capsules 418 are respectively fixedly installed on one side of the two limit plates 417 near the middle of the mounting groove 414. The two storage capsules 418 in the mounting groove 414 are respectively connected to the outer side of the support shaft 410 through a connecting tube 419. The two supporting bags 413 are connected, and the connecting tube 419 is in the spiral groove 415. A partition block 420 is provided in the middle of the two storage bags 418. The two storage bags 418 are respectively fixedly connected to the two ends of the partition block 420. The partition block 420 is slidably installed in the spiral groove 415. The partition block 420 is fixedly connected to the sliding sleeve 412 through a connecting block 421. The connecting block 421 is in the spiral groove 415. A shaft sleeve is provided on the movable sleeve of the connecting block 421, so that the shaft sleeve can roll in the spiral groove 415 and rotate on the connecting block 421, thereby reducing the friction between the connecting block 421 and the spiral groove 415.

[0038] The same group of storage capsules 418, connecting tubes 419 and support capsules 413 are filled with the same volume of extrusion liquid. In the initial state, the support capsules 413 and storage capsules 418 on both sides have the same volume, ensuring that the partition block 420, the connecting block 421, the sliding sleeve 412 and the storage capsule 418 are in the middle position of the support shaft 410.

[0039] The support springs 416 at both ends of the mounting slot 414 are identical and are always in a compressed state. The support springs 416 at both ends of the mounting slot 414 always provide support force for the limit plate 417, the storage capsule 418 and the partition block 420. In the absence of external force, the support springs 416 at both ends provide the same elastic force for the limit plate 417, the storage capsule 418 and the partition block 420, so that the limit plate 417, the storage capsule 418 and the partition block 420 are in the middle position of the mounting slot 414.

[0040] The volume of the support bag 413 after being filled with the squeezing liquid is constant. When squeezed by external force, the support bag 413 will not produce flexible expansion. The storage bag 418 is a telescopic bag. After the storage bag 418 is filled with the squeezing liquid, the squeezing liquid continues to be added, and the storage bag 418 will extend in the axial direction.

[0041] The length of the moving groove 411 is greater than that of the sliding sleeve 412. The sliding sleeve 412 can drive the supporting capsule 413 to move in the axial direction of the moving groove 411, thereby adjusting the positions of the sliding sleeve 412, the supporting capsule 413 and the clamped metal pipe on the supporting shaft 410.

[0042] The working principle of the second embodiment of the present invention is as follows:

[0043] See also Figure 1-Figure 6When the laser cutting machine fixes the metal pipe, the metal pipe is inserted into the middle position of the two clamping devices 4. At this time, by starting the two opposite driving cylinders 404, the two opposite driving cylinders 404 drive the power gear 405 to rotate, and through the transmission of the teeth on the transmission gear 406 and the slider 407, the two opposite sliders 407 and the positioning piece 408 on the slider 407 are pushed to clamp the metal pipe. In the clamping process, the metal pipe first contacts the support capsule 413, and the support capsule 413 is reversely squeezed by the metal pipe. Since the metal pipe is not necessarily in the middle position of the support shaft 410, the two support capsules 413 on the outside of the support shaft 410 are squeezed to different degrees, and the amount of extruded liquid inside the two support capsules 413 is also different. The amount of extruded liquid inside the support capsule 413 is more, which means that the metal pipe is biased towards the support capsule 4 here. 13. A larger amount of extruded liquid in the support capsule 413 will enter the storage capsule 418 through the connecting tube 419, and the telescopic length of the storage capsule 418 will also be larger. At this time, since the support springs 416, the limit plates 417 and the storage capsule 418 on both sides of the mounting groove 414 are in the same initial state, when the telescopic lengths of the storage capsules 418 on both sides are different, the side with the larger telescopic length of the storage capsule 418 will push the partition block 420 to move to the other side. At this time, the partition block 420 drives the connecting block 421, the sliding sleeve 412, the support capsule 413 and the metal pipe fittings on the outside of the support capsule 413 to move, thereby moving the metal pipe fittings to the middle position of the support shaft 410, and moving the metal pipe fittings to the middle of the same group of support shafts 410 to prevent the metal pipe fittings from sliding friction with the previous group of support shafts 410 when the other group of support shafts 410 clamps the metal pipe fittings, thereby damaging the surface of the metal pipe fittings.

[0044] Embodiment 3

[0045] Embodiment 3 is a further improvement on the basis of embodiment 2.

[0046] The difference from the second embodiment is that please refer to Figure 7 A plurality of permanent magnetic plates 422 are arranged in an array on the inner wall of the support capsule 413 close to one side of the sliding sleeve 412, and a plurality of knocking grooves 423 are equidistantly provided on the two arms of the Y-shaped frame 409 toward the center line of the support shaft 410, and a connecting spring 424 is fixedly connected to the bottom end of the knocking groove 423, and the connecting spring 424 is entirely in the knocking groove 423, and a knocking rod 425 is fixedly connected to the other end of the connecting spring 424, and one end of the knocking rod 425 is in the knocking groove 423, and the other end of the knocking rod 425 extends out of the knocking groove 423, and a knocking ball 426 is embedded in the end of the knocking rod 425 extending out of the knocking groove 423, and the knocking ball 426 is a permanent magnet, which can generate a magnetic force of attraction or repulsion with the permanent magnetic plate 422.

[0047] The magnetic poles of two adjacent permanent magnet plates 422 facing outwards are opposite. When the permanent magnet plates 422 face the knocking ball 426, the knocking ball 426 and the knocking rod 425 can intermittently face or move away from the support capsule 413, thereby regularly knocking the outer surface of the support capsule 413, causing the outer surface of the support capsule 413 to vibrate regularly.

[0048] The distance between the opening of the knocking groove 423 and the supporting capsule 413 is less than the length of the knocking rod 425. When the knocking ball 426 is attracted by the magnetic force of the permanent magnet plate 422 and drives the knocking rod 425 to hit the supporting capsule 413, the knocking rod 425 will not extend from the knocking groove 423, preventing the knocking rod 425 from falling off from the knocking groove 423.

[0049] The working principle of the third embodiment of the present invention is as follows:

[0050] See also Figure 1-Figure 7 During the clamping process of the clamping device 4 of the laser cutting machine on the metal pipe, the metal pipe first contacts the support capsule 413, and the support capsule 413 is squeezed in the opposite direction by the metal pipe. Since the metal pipe is not necessarily in the middle position of the support shaft 410, the two support capsules 413 on the outside of the support shaft 410 are squeezed to different degrees, and the amount of extruded liquid inside the two support capsules 413 is also different. The more extruded liquid inside the support capsule 413 is squeezed out, it means that the metal pipe is biased toward the support capsule 413 at this location, and the extruded liquid inside the support capsule 413 enters the storage capsule 418 through the connecting pipe 419. The telescopic length of the storage capsule 418 here is also large. At this time, since the support springs 416, the limit plates 417 and the storage capsule 418 on both sides of the mounting groove 414 are in the same initial state, when the telescopic lengths of the storage capsules 418 on both sides are different, the side with the larger telescopic length of the storage capsule 418 will push the partition block 420 to move to the other side. During the movement of the partition block 420, the partition block 420 drives the connecting block 421, the sleeve 412 and the supporting capsule 413 to move synchronously. Since the connecting block 421 is in the spiral groove 415, the connecting block 421 will move along the direction of the spiral groove 415, thereby driving the partition block 420, the sleeve 412 and the supporting capsule 413 to rotate along the shape of the spiral groove 415 (when the partition block 420 and the connecting block 421 move a small distance in the axial direction of the support shaft 410, they can also rotate a large amplitude). During the rotation of the supporting capsule 413, the permanent magnet plate 422 on the inner wall of the supporting capsule 413 generates a magnetic attraction or magnetic repulsion on the knocking ball 426, so that the permanent magnet plate 422 drives the knocking ball 426 to intermittently impact the supporting capsule 413, causing the supporting capsule 413 to vibrate, so that the metal slag remaining on the outer wall of the supporting capsule 413 during the last operation is shaken off by the vibrated supporting capsule 413, thereby preventing the metal slag on the supporting capsule 413 from scratching the metal pipe fittings.

Claims

1. A laser cutting machine for separating and processing metal pipes, comprising a base (1), a bracket (2), a laser cutting device (3) and a clamping device (4), wherein the clamping device (4) comprises a moving seat (401), a shell (402), a driving cylinder (404), a power gear (405), a transmission gear (406), a slider (407) and a positioning member (408), characterized in that: The positioning member (408) comprises: A Y-shaped frame (409) includes a straight rod and two supporting arms, wherein the straight rod is fixedly mounted on the slider (407) and the supporting arms face the center line of the housing (402); A support shaft (410), both ends of which are movably sleeved on the top ends of the side walls of the two support arms of the support shaft (410), and a movable groove (411) is formed on the outer surface of the support shaft (410); A sliding sleeve (412) is movably mounted on the outside of the movable groove (411); Two support bags (413) are fixedly sleeved on the outside of the sliding sleeve (412) and are symmetrically arranged. The support bags (413) are filled with extrusion liquid.

2. The metal pipe separation processing laser cutting machine according to claim 1, characterized in that: The support shaft (410) is provided with a mounting groove (414), the outer surface of the support shaft (410) is provided with a spiral groove (415), and the mounting groove (414) is provided with: Two support springs (416) are respectively fixedly connected to two ends of the mounting groove (414); Two limit plates (417) are respectively fixedly connected to the other end of the support spring (416); Two storage bags (418) are respectively fixedly mounted on one side of the limiting plate (417) close to the middle of the mounting groove (414), and the two storage bags (418) are respectively connected to the two support bags (413) outside the support shaft (410) through the connecting pipe (419); The partition block (420) is slidably mounted in the middle of the spiral groove (415), and its two ends are respectively fixedly connected to the storage capsules (418) on both sides. The partition block (420) is fixedly connected to the sliding sleeve (412) via a connecting block (421).

3. The metal pipe separation processing laser cutting machine according to claim 2 is characterized in that: The storage capsule (418), the connecting tube (419) and the supporting capsule (413) of the same group are filled with the same volume of extrusion liquid.

4. The metal pipe separation processing laser cutting machine according to claim 2, characterized in that: The support springs (416) at both ends of the installation slot (414) are identical, and the support springs (416) at both ends are always in a compressed state.

5. The metal pipe separation processing laser cutting machine according to claim 2, characterized in that: The volume of the support bag (413) after being filled with the squeezing liquid is constant, and when squeezed by external force, the support bag (413) will not produce flexible expansion; the storage bag (418) is a telescopic bag, and after the storage bag (418) is filled with the squeezing liquid, the squeezing liquid continues to be filled, and the storage bag (418) will extend in the axial direction.

6. The metal pipe separation processing laser cutting machine according to claim 2, characterized in that: The length of the moving groove (411) is greater than the length of the sliding sleeve (412).

7. The metal pipe separation processing laser cutting machine according to claim 2, characterized in that: A plurality of permanent magnetic plates (422) are arranged in an array on the inner wall of the support capsule (413) close to the sliding sleeve (412); a plurality of knocking grooves (423) are equidistantly provided on the two arms of the Y-shaped frame (409) toward the center line of the support shaft (410); a connecting spring (424) is fixedly connected to the bottom end of the knocking groove (423); a knocking rod (425) is fixedly connected to the other end of the connecting spring (424); a knocking ball (426) is embedded in one end of the knocking rod (425) extending out of the knocking groove (423); and the knocking ball (426) is a permanent magnet.

8. The metal pipe separation processing laser cutting machine according to claim 7, characterized in that: The magnetic poles of two adjacent permanent magnet plates (422) facing outwards are opposite.

9. The metal pipe separation processing laser cutting machine according to claim 7, characterized in that: The distance between the opening of the knocking groove (423) and the supporting capsule (413) is less than the length of the knocking rod (425).

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