Composite pipe laser marking machine

Abstract

The utility model discloses a composite pipe laser marking machine, and belongs to the technical field of pipe machining, the composite pipe laser marking machine comprises a workbench, a truss, a driving mechanism, a clamping mechanism, an adjusting mechanism and a laser marking device, the clamping mechanism is arranged on the workbench, the clamping mechanism comprises two limiting pieces, the two limiting pieces are movably installed on the workbench, and the driving mechanism is in transmission connection with one limiting piece; a laser marking device is movably installed on the truss through an adjusting mechanism. According to the utility model, the clamping mechanism can be compatible with the clamping requirements of pipes of different specifications, so that the flexible marking operation of the pipes of various specifications is realized, and the use flexibility and universality are improved; the driving mechanism drives the limiting piece to rotate so that circumferential marking can be conducted on the pipes, the marking range is expanded, and the flexibility of pipe marking is further improved; the laser marking device can conduct marking operation at any position in the length direction of the pipe through the adjusting mechanism, the machining efficiency is improved, and the marking precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe processing, especially to composite pipe laser marking machine. BACKGROUND

[0002] With the wide application of composite pipes in the fields of construction, petroleum, chemical industry and the like, the traditional ink marking and mechanical carving are prone to defects such as insufficient adhesion, easy wear and tear, environmental pollution and the like, and are difficult to meet the marking requirements of pipes of different materials. The laser marking technology can form permanent high-precision marks on the surfaces of various composite pipes through non-contact high-energy beam processing, and has advantages such as no consumables, environmental protection, corrosion resistance and the like. With the technological progress of fiber lasers and galvanometer systems, the laser marking equipment is significantly improved in marking speed, definition and automation degree, and can meet the stringent requirements for product traceability and brand identification in modern industrial production.

[0003] The applicant obtains the following prior art through retrieval, specifically, the patent with the publication number CN211638687U discloses a pipe laser marking device, which comprises a supporting bottom plate, a linear slide rail is transversely welded at the top of the middle of the supporting bottom plate, two groups of supporting blocks are connected to the top of the linear slide rail, and the two groups of supporting blocks are symmetrically arranged about the axis of the linear slide rail, and a pipe is horizontally arranged at the top of the two groups of supporting blocks. The utility model drives the rotation of the positioning screw through the positioning motor, and through the screw thread action between the positioning screw and the positioning support, the laser marking machine can move horizontally with the rotation of the positioning screw, the position of the pipe remains unchanged, the laser marking machine is moved to mark, the phenomenon of marking deviation is avoided, and the position of the positioning frame on the supporting column can also be adjusted to adjust the distance between the laser marking machine and the pipe, so that the laser marking machine can mark pipes of different diameters, and the application range is improved.

[0004] As can be seen from the above patent, the pipe laser marking device can avoid the phenomenon of marking deviation, and can adjust the distance between the laser marking machine and the pipe, so that the laser marking machine can mark pipes of different diameters, and the application range is improved, but in the actual use process, since the pipe is directly installed on the supporting block, the laser marking machine can only mark the code in a single direction, and cannot flexibly adjust the circumferential position of the code on the pipe, so it is difficult to meet the processing requirements of multi-angle code marking of the pipe, the range of the code is limited, and the flexibility of the code is reduced. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a composite pipe laser marking machine which can mark pipes of different specifications at multiple positions, meet the processing requirements of multi-angle code marking of the pipe in the circumferential direction, and has a wide range of code and high flexibility.

[0006] In order to achieve the above object, the utility model provides composite pipe laser marking machine, including work table, truss, drive mechanism, clamping mechanism, adjusting mechanism and laser marker, the clamping mechanism sets up on the work table, the clamping mechanism includes two limit pieces, two the limit piece swing installation is on the work table and is used for with the both ends of pipe detachable connection respectively, drive mechanism with a limit piece transmission connection and is used for driving pipe rotation, the truss is along its extension direction and is swing installed with laser marker through adjusting mechanism, and the laser marker is used for marking code to pipe.

[0007] Preferably, the clamping mechanism further includes fixed seat, movable seat, slide rail and adjusting screw, the fixed seat and slide rail are detachably installed on the work table, a limit piece is rotatably installed on the fixed seat through a pivot, and the pivot is in transmission connection with the drive mechanism, the movable seat is limit swing installed in the slide rail through the adjusting screw, another limit piece is rotatably installed on the movable seat, and a handle is arranged at the end of the adjusting screw away from the fixed seat.

[0008] Preferably, the two limit pieces are arranged in a tapered manner towards the pipe in the direction close to the pipe, and a plurality of flexible strips are uniformly and spacedly arranged on the outer walls of the two limit pieces.

[0009] Preferably, a support seat is limit swing installed on the slide rail in the extension direction thereof, the support seat is located between the two limit pieces, and a pad block for abutting against the pipe is swing installed on the support seat.

[0010] Preferably, the adjusting mechanism includes a guide rail, a sliding seat, a gear, a rack and a first driving member, the guide rail and the rack are detachably installed on the truss, the sliding seat is in sliding contact with the guide rail, the laser marker and the first driving member are detachably installed on the sliding seat, and the power output end of the first driving member is provided with the gear engaged with the rack.

[0011] Preferably, the adjusting mechanism further includes a drag chain, and the two ends of the drag chain are detachably connected with the truss and the sliding seat respectively.

[0012] Preferably, the drive mechanism includes a second driving member and a transmission assembly, the second driving member is detachably installed on the work table and is in transmission connection with the limit piece through the transmission assembly.

[0013] Beneficial effects:

[0014] 1. In the composite pipe laser marking machine of this utility model, since the two limiting parts in the clamping mechanism are respectively movably installed on the worktable, the clamping mechanism can adapt to pipes of different lengths and sizes, and thus can be compatible with the clamping requirements of pipes of different specifications, thereby realizing flexible marking operations for pipes of various specifications, improving the flexibility and versatility of use.

[0015] 2. In the composite pipe laser marking machine of this utility model, the driving mechanism can drive the limiting component to rotate relative to the worktable, and thus drive the pipe to rotate synchronously, so that the laser marking machine can mark the pipe in the circumferential direction, meet the processing requirements of marking the pipe in multiple angles in the circumferential direction, thereby not only expanding the marking range, but also significantly improving the flexibility of marking the pipe, and making it convenient and reliable to use.

[0016] 3. In this utility model of composite pipe laser marking machine, the laser marking device is moved by the adjustment mechanism, so that multi-point marking operation can be performed on the pipe at any position along its length. This not only further expands the marking range, but also eliminates the need to repeatedly disassemble and reassemble the pipe for multi-point marking operation, thereby improving processing efficiency and ensuring marking accuracy.

[0017] 4. In this utility model of composite pipe laser marking machine, the combination of adjustment mechanism and drive mechanism can improve the adaptability to the marking process requirements of pipe. For example, by adjusting the moving speed and pause time of the laser marking device or the rotation angle of the limiting component, it can perfectly adapt to the process requirements of different complex marking such as dot matrix marking, continuous marking or spiral marking, thus improving the process scalability and adaptability of this utility model. It is flexible to use and highly practical. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a composite pipe laser marking machine according to an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of a composite pipe laser marking machine equipped with pipes according to an embodiment of this utility model;

[0021] Figure 3 This is a partial structural schematic diagram of a composite pipe laser marking machine according to an embodiment of the present invention.

[0022] In the diagram: 1-Workbench; 2-Truss; 3-Drive mechanism; 4-Clamping mechanism; 5-Adjusting mechanism; 6-Laser marking device; 7-Limiting component; 8-Fixed seat; 9-Modible seat; 10-Slide rail; 11-Adjusting screw; 12-Flexible strip; 13-Support seat; 14-Padded block; 15-Guide rail; 16-Sliding seat; 17-Rack; 18-First driving component; 19-Drag chain; 20-Second driving component; 21-Transmission assembly. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] Example 1:

[0030] This utility model proposes a laser marking machine for composite pipes.

[0031] In one embodiment of this utility model, the composite pipe laser marking machine includes a worktable 1, a truss 2, a drive mechanism 3, a clamping mechanism 4, an adjustment mechanism 5, and a laser marking device 6. The clamping mechanism 4 is disposed on the worktable 1 and includes two limiting members 7. The two limiting members 7 are movably installed on the worktable 1 and are respectively used to detachably connect to both ends of the pipe. The drive mechanism 3 is connected to one of the limiting members 7 and is used to drive the pipe to rotate. The laser marking device 6 is movably installed on the truss 2 along its extension direction through the adjustment mechanism 5. The laser marking device 6 is used to mark the pipe.

[0032] Specifically, such as Figures 1 to 3 As shown, in the composite pipe laser marking machine of this utility model, since the two limiting members 7 in the clamping mechanism 4 are respectively movably installed on the worktable 1, the two limiting members 7 can be claws or pins, that is, the pipe is clamped by the claws or inserted into the pipe by the pins. This allows the two limiting members 7 to fix and limit the two ends of the pipe respectively, ensuring the stability of the pipe during the marking process and meeting the installation requirements of pipes of different diameters. At the same time, the two limiting frames can be movably installed on the worktable 1 by a sliding connection, such as by a linear slide, so that the two limiting frames can move closer or further apart, thereby adapting to pipes of different lengths and sizes, and thus being compatible with the clamping requirements of pipes of different specifications. This realizes the flexible marking operation of various specifications of pipes of this utility model, improving the flexibility and versatility of use.

[0033] Furthermore, since the two limiting members 7 are movably mounted on the worktable 1, and the two limiting members 7 can also be movably mounted on the worktable 1 as bearing seats, that is, the limiting members 7 are rotatably mounted on the bearing seats, and the bearing seats are detachably mounted on the linear slide by means of bolt connection, etc., so that the limiting members 7 can not only move linearly on the worktable 1, but also rotate relative to the worktable 1, and the structural design is simple and reasonable. Understandably, when the worker installs the pipe in place, since the drive mechanism 3 is connected to one of the limiting members 7, the drive mechanism 3 can drive the limiting member 7 to rotate relative to the worktable 1, and thus synchronously drive the pipe to rotate, so that the laser marking machine 6 can mark the pipe circumferentially, meet the processing requirements of marking the pipe circumferentially at multiple angles, and thus not only expand the marking range, but also significantly improve the flexibility of marking the pipe, making it convenient and reliable to use.

[0034] In addition, since the laser marking device 6 is movably mounted on the truss 2 through the adjustment mechanism 5, the adjustment mechanism 5 can be a cylinder, hydraulic cylinder, electric push rod or other linear drive device, etc. By detachably connecting the power output end of the adjustment mechanism 5 to the laser marking device 6 (such as bolt connection), the laser marking device 6 can move along the extension direction of the truss 2 on the truss 2 under the action of the adjustment mechanism 5. The structural design is simple and reasonable. Furthermore, after the pipe is installed in place, the laser marking device 6 is moved by the adjustment mechanism 5, enabling multi-point marking operations at any position along the length of the pipe. This not only expands the marking range but also eliminates the need for repeated disassembly and reassembly of the pipe for multi-point marking operations, improving processing efficiency and ensuring marking accuracy. Simultaneously, the coordinated use of the adjustment mechanism 5 and the drive mechanism 3 enhances the adaptability to the marking process requirements of the pipe. For example, by adjusting the moving speed and pause time of the laser marking device 6 or the rotation angle of the limiting component 7, it can perfectly adapt to the process requirements of different complex marking methods such as dot matrix marking, continuous marking, or spiral marking, improving the process scalability and adaptability of this invention, making it flexible and highly practical.

[0035] It should be noted that in this composite pipe laser marking machine, a control system is also provided on the worktable 1. The control system includes, but is not limited to, components such as a display, panel, and power supply. The control system is communicatively connected to the adjustment mechanism 5, the drive mechanism 3, and the laser marking device 6, and is used to control and maintain the normal operation of the entire equipment. The control system is a mature existing technology and will not be described in detail here. Furthermore, its specific structural composition is not shown in the accompanying drawings. The purpose of this invention is solely to overcome the shortcomings of the existing technology, namely, to solve the problem that existing pipe laser marking machines cannot flexibly adjust the circumferential position of the markings on the pipe, making it difficult to meet the processing requirements of multi-angle marking on the pipe, resulting in a limited marking range and reduced marking flexibility.

[0036] In one embodiment, the clamping mechanism 4 further includes a fixed seat 8, a movable seat 9, a slide rail 10, and an adjusting screw 11. The fixed seat 8 and the slide rail 10 are detachably mounted on the worktable 1. A limiting member 7 is rotatably mounted on the fixed seat 8 via a rotating shaft, and the rotating shaft is connected to the drive mechanism 3. The movable seat 9 is movably mounted in the slide rail 10 via the adjusting screw 11. Another limiting member 7 is rotatably mounted on the movable seat 9, and a handle is provided at the end of the adjusting screw 11 away from the fixed seat 8.

[0037] Specifically, such as Figures 1 to 3 As shown, the fixed seat 8 and slide rail 10 can be detachably installed on the workbench 1 using a threaded connection, which facilitates the disassembly, replacement, and maintenance of the fixed seat 8 or slide rail 10. Simultaneously, since a limiting member 7 is rotatably mounted on the fixed seat 8 via a rotating shaft, and the rotating shaft is connected to the drive mechanism 3, the drive mechanism 3 can drive the limiting member 7 to rotate relative to the fixed seat 8. The structural design is simple and reasonable. Furthermore, since the movable seat 9 is movably installed within the slide rail 10 via an adjusting screw 11 (i.e., the movable seat 9 and the adjusting screw 11 are threadedly engaged), the operator can drive the movable seat 9 to move away from or closer to the fixed seat 8 by rotating the adjusting rod. Additionally, another limiting member 7 in the clamping mechanism 4 can be rotatably installed on the movable seat 9 via a pin, bolt, or other means, allowing the operator to adjust the distance between the two limiting members 7 by rotating the adjusting rod. This meets the installation requirements for pipes of different lengths, improving flexibility and versatility. In addition, by setting a throttle at the end of the adjusting screw 11 away from the fixed base 8, it is easy for the operator to turn the adjusting rod without the need for other auxiliary tools, making the operation simple and convenient.

[0038] In one embodiment, the ends of the two limiting members 7 that are detachably connected to the pipe are tapered towards the pipe, and a plurality of flexible strips 12 are evenly and spaced on the outer walls of the two limiting members 7. Specifically, as shown in the figure... Figure 2 and 3As shown, since the ends of the two limiting members 7 used for detachable connection with the pipe are tapered structures, that is, the cross-sectional dimensions of the two limiting members 7 gradually decrease along the direction close to the pipe to form a guide cone surface, the two limiting members 7 can not only be inserted and matched with pipes of different diameters to achieve installation limiting for multiple pipe diameters, but also quickly center and position the pipe to ensure the accuracy of the pipe marking position, thereby improving the installation efficiency and marking accuracy of the pipe, ensuring processing quality, and ensuring reliable use. Furthermore, since several flexible strips 12 are evenly and spaced on the outer wall of the limiting member 7, when the limiting member 7 is inserted and matched with the pipe, the flexible strips 12 abut against the inner wall of the pipe, and the flexible strips 12 undergo elastic deformation to form flexible contact with the inner wall of the pipe. This ensures sufficient friction to transmit rotational torque, adaptively compensates for the dimensional tolerances and shape errors of the pipe, and effectively avoids surface damage to the pipe caused by rigid contact. In addition, during the process of rotating and marking the pipe, the elastic properties of the flexible strip 12 can absorb some of the vibration, thereby improving the stability and accuracy of the marking process.

[0039] In one embodiment, a support base 13 is movably mounted on the slide rail 10 along its extending direction. The support base 13 is located between two limiting members 7, and a pad 14 for abutting against the pipe is movably mounted on the support base 13. Specifically, as shown... Figure 2 and Figure 3 As shown, the support base 13 can be fixedly installed at any position between the two limiting members 7 via bolts or other locking mechanisms. Since a pad 14 for contacting the pipe is movably installed on the support base 13, and the pad 14 can be made of flexible, wear-resistant composite material, it can provide elastic support for the pipe. This not only effectively prevents the pipe from bending or deforming due to its own weight or rotation, ensuring the processing quality of the pipe marking, but also prevents the support base 13 from scratching the pipe surface, ensuring reliable use. It should be noted that in actual use, the pad 14 can have an arc-shaped groove to enhance its adaptability to the outer wall of the pipe, thereby improving the stability of the support. Furthermore, the pad 14 and the support base 13 can be movably installed via a threaded connection, allowing the pad 14 to be adjusted in height on the support base 13 according to different pipe diameters, thus meeting the support requirements for various pipe sizes.

[0040] In one embodiment, the adjustment mechanism 5 includes a guide rail 15, a sliding seat 16, a gear, a rack 17, and a first driving member 18. The guide rail 15 and the rack 17 are detachably mounted on the truss 2. The sliding seat 16 slides in contact with the guide rail 15. The laser marking device 6 and the first driving member 18 are detachably mounted on the sliding seat 16. The power output end of the first driving member 18 is provided with a gear that meshes with the rack 17.

[0041] Specifically, such asFigures 1 to 3 As shown, the adjustment mechanism 5 in the composite pipe laser marking machine of this utility model uses a precision gear and rack transmission 17 to achieve precise positioning of the laser marking device 6: by installing the guide rail 15 and the rack 17 parallel to each other on the truss 2 to form a double-rail guide system, the sliding seat 16 can slide and engage with the guide rail 15 by installing a slider or opening a groove, thereby ensuring the smooth movement of the sliding seat 16 on the truss 2; at the same time, since the first driving component 18 (servo motor or stepper motor) is fixedly installed on the sliding seat 16, its power output The end can be detachably connected to the gear via a coupling or the like, and the gear meshes with the rack 17 mounted on the truss 2. When the first driving member 18 runs, the gear rolls along the rack 17, thereby driving the entire sliding seat 16 and the laser marking device 6 on the sliding seat 16 to move precisely and smoothly along the truss 2. This enables marking operations on the pipe at any position along its length, expands the marking range, simplifies the operation steps for marking multiple points on the pipe, eliminates the need for repeated disassembly and assembly of the pipe, improves processing efficiency, and ensures marking accuracy.

[0042] In one embodiment, the adjusting mechanism 5 further includes a cable chain 19, the two ends of which are detachably connected to the truss 2 and the sliding seat 16, respectively. Specifically, as shown... Figures 1 to 3 As shown, the cable chain 19 can reasonably arrange the key pipelines such as the power supply cable, control signal line and cooling pipe of the laser marking device 6. While ensuring the high-precision positioning and operation of the laser marking device 6, the standardized pipeline management significantly improves the reliability of the composite pipe laser marking machine of this utility model, making the appearance neater and more beautiful, and facilitating daily maintenance.

[0043] In one embodiment, the drive mechanism 3 includes a second drive member 20 and a transmission assembly 21. The second drive member 20 is detachably mounted on the worktable 1 and is connected to the limiting member 7 via the transmission assembly 21. Specifically, as shown... Figure 1 and Figure 2 As shown, the second drive component 20 (servo motor or geared motor) can be fixedly installed on the side of the worktable 1 via a flange mounting base. Its output shaft is connected to the transmission assembly 21 via a coupling. The transmission assembly 21 can be a chain drive, synchronous toothed belt, etc., to ensure that the output power of the second drive component 20 is transmitted to the limiting component 7, thereby driving the limiting component 7 and the installed pipe to rotate smoothly. The structural design is simple and reasonable. In addition, in the actual production process of this composite pipe laser marking machine, a dust cover is installed at the transmission assembly 21, which not only ensures the reliability of the power transmission of the second drive component 20, but also adapts to the dust and oil conditions in the industrial production environment, making it reliable in use.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A laser marking machine for composite pipe, characterized in that, The utility model provides a pipe laser marking device, including workbench (1), truss (2), drive mechanism (3), clamping mechanism (4), adjusting mechanism (5) and laser marker (6), the clamping mechanism (4) is arranged on the workbench (1), the clamping mechanism (4) includes two limit piece (7), two limit piece (7) swing mounting on the workbench (1) and is used for with the both ends of pipe material detachable connection respectively, drive mechanism (3) with a limit piece (7) transmission connection and is used to drive pipe material rotation, the truss (2) is along its extension direction through adjusting mechanism (5) swing installation has laser marker (6), and laser marker (6) is used to mark the code to pipe material.

2. The composite pipe laser marking machine of claim 1, wherein, The clamping mechanism (4) further includes a fixed seat (8), a movable seat (9), a slide rail (10) and an adjusting screw (11), the fixed seat (8) and the slide rail (10) are detachably mounted on the workbench (1), the fixed seat (8) is rotatably mounted with one of the limit pieces (7) through a rotating shaft, and the rotating shaft is in transmission connection with the drive mechanism (3); the movable seat (9) is limitingly movably mounted in the slide rail (10) through the adjusting screw (11), the other limit piece (7) is rotatably mounted on the movable seat (9), and the end of the adjusting screw (11) away from the fixed seat (8) is provided with a rotating handle.

3. The composite pipe laser marking machine of claim 2, wherein, The two limit pieces (7) are arranged in a tapered manner towards the pipe material at the end detachably connected with the pipe material, and a plurality of flexible strips (12) are uniformly and spacedly arranged on the outer walls of the two limit pieces (7).

4. The composite pipe laser marking machine of claim 3, wherein, The slide rail (10) movably mounts a support seat (13) along its extension direction, the support seat (13) is located between the two limit pieces (7), and a pad (14) for abutting against the pipe material is movably mounted on the support seat (13).

5. The composite pipe laser marking machine of claim 1, wherein, The adjusting mechanism (5) includes a guide rail (15), a sliding seat (16), a gear, a rack (17) and a first driving member (18), the guide rail (15) and the rack (17) are detachably mounted on the truss (2), the sliding seat (16) is in sliding contact with the guide rail (15), the laser marker (6) and the first driving member (18) are detachably mounted on the sliding seat (16), and the power output end of the first driving member (18) is provided with the gear engaged with the rack (17).

6. The composite pipe laser marking machine of claim 5, wherein, The adjusting mechanism (5) further includes a drag chain (19), and the two ends of the drag chain (19) are detachably connected with the truss (2) and the sliding seat (16) respectively.

7. The composite pipe laser marking machine according to any one of claims 1-6, wherein, The drive mechanism (3) includes a second driving member (20) and a transmission assembly (21), the second driving member (20) is detachably mounted on the workbench (1) and is in transmission connection with the limit piece (7) through the transmission assembly (21).

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