Laser cleaning and cladding composite device for pipe parts

Abstract

The invention relates to the technical field of plating, and discloses a pipe part laser cleaning and cladding composite device which comprises a main body component and a mechanical arm, a powder supply bottle is fixedly connected to one side of the mechanical arm, a sliding rail is installed on one side of the mechanical arm, a set of symmetrical supporting blocks are arranged on the sliding rail in a sliding mode, and a pipeline and a replacement component are installed between the supporting blocks. Comprising a laser cylinder fixed to one side of a mechanical arm, a replacement assembly is fixedly connected to the side wall of the laser cylinder, and one end of the laser cylinder is in a shriveled nozzle shape. Through the innovative design of the replacement assembly, especially the rapid replacement mechanism of a grating plate, the adaptability of the device to different pipeline sizes is greatly improved, the operation process is simplified, and the downtime is shortened; and an ingenious clamping and locking mechanism is combined with a pneumatic principle, so that the stability and reliability of replacement of the grating plate are ensured, and the continuity and high-quality output of the machining process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of plating, and in particular to a laser cleaning and cladding composite device for pipe parts. Background Art

[0002] Previous laser cleaning and cladding devices mostly adopted a single laser head design. This configuration is not enough for large-size or long-distance pipeline operations. The single-point operation mode not only prolongs the overall processing cycle, but may also cause local overheating due to long-term operation, affecting material properties and processing accuracy. In addition, the power limitation of a single laser source makes it difficult to meet certain high-intensity or large-area cleaning and cladding requirements, limiting the scope of application of the technology. The laser heads of most traditional devices are fixedly installed, and laser heads with different functions or specifications cannot be quickly replaced according to actual operation requirements. This means that for pipelines that require multiple processing effects or process different materials, it is necessary to rely on multiple dedicated equipment, which increases equipment investment costs and occupied space, while reducing operational flexibility and response speed. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing laser cleaning and cladding composite devices for pipe parts, the present invention is proposed.

[0004] Therefore, the purpose of the present invention is to provide a composite device for laser cleaning and cladding of pipe parts, and its purpose is to provide a new composite device with a quick replacement laser head mechanism, which can automatically adjust to meet different operating requirements and has efficient multi-point operation capabilities.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A laser cleaning and cladding composite device for pipe parts includes a main body component, including a mechanical arm, a powder supply bottle is fixedly connected to one side of the mechanical arm, a slide rail is installed on one side of the mechanical arm, a group of symmetrical support blocks slide on the slide rail, and the support blocks are used to install pipes, replacement parts are located on one side of the main body component, including an operation box located on one side of the slide rail, and a laser tube fixed on one side of the mechanical arm, the side wall of the laser tube is fixedly connected to a replacement component, and one end of the laser tube is in a deflated shape.

[0006] As a preferred solution of the laser cleaning and cladding composite device for tube parts of the present invention, one side of the operation box is fixedly connected to a powder supply bottle via a hose, and one side of the operation box is fixedly connected to the filling cylinder via a hose.

[0007] As a preferred solution of the composite device for laser cleaning and cladding of tubular parts of the present invention, the replacement component comprises a replacement box located on the side wall of the laser tube, and a receiving groove is provided inside the replacement box.

[0008] As a preferred solution of the laser cleaning and cladding composite device for tube parts of the present invention, a group of symmetrical limiting plates are installed on one side of the accommodating groove, and a locking groove is opened on one side of the accommodating groove.

[0009] As a preferred solution of the laser cleaning and cladding composite device for tube parts described in the present invention, a replacement plate is slidably connected in the replacement box, the replacement plate is provided with two U-shaped through grooves, and the side walls of the U-shaped through grooves are provided with snap-in grooves.

[0010] As a preferred solution of the laser cleaning and cladding composite device for tube parts described in the present invention, the side wall of the clamping groove is fixedly connected with a group of symmetrical clamping plates by springs, one end of the clamping plate close to the limit plate is an inclined surface, and the other end of the clamping plate is an arc surface.

[0011] As a preferred solution of the laser cleaning and cladding composite device for tube parts described in the present invention, the replacement plate is provided with a through groove on the side close to the limiting plate, a push rod is slidably connected in the through groove, and the push rod is in a frustum shape away from the limiting plate.

[0012] As a preferred solution of the laser cleaning and cladding composite device for tube parts described in the present invention, a second spring is fixedly connected between the push rod and the limit plate, a push plate is fixedly connected to one end of the push rod, the push plate on the push rod slides in the combined gas cylinder, the combined gas cylinder includes a fixed plate fixedly connected to the telescopic gas cylinder, and a telescopic rod is fixedly connected to one side of the telescopic gas cylinder.

[0013] As a preferred solution of the composite device for laser cleaning and cladding of tubular parts of the present invention, the two telescopic gas cylinders are connected by a hose.

[0014] As a preferred solution of the laser cleaning and cladding composite device for tube parts described in the present invention, a laser generator is installed in the laser barrel, a powder groove is opened on the side wall of the laser barrel, one end of the powder groove is fixedly connected to the powder supply bottle through a hose, and the other end of the powder groove is located at the deflated end of the laser barrel.

[0015] Beneficial effects of the present invention: The innovative design of the replacement components, especially the quick replacement mechanism of the grating plate, greatly enhances the adaptability of the device to different pipe sizes, simplifies the operation process, reduces downtime, and the sophisticated clamping and locking mechanism, combined with the pneumatic principle, ensures the stability and reliability of the grating plate replacement, and guarantees the continuity of the processing process and high-quality output. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the laser tube of the present invention.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the replacement box of the present invention.

[0019] Figure 4 It is an enlarged schematic diagram of the structure at location A of the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the laser tube of the present invention.

[0021] Figure 6 It is an enlarged schematic diagram of the structure at B of the present invention.

[0022] In the figure: 100, main body; 101, mechanical arm; 102, filling cylinder; 104, slide rail; 103, support block; 200, replacement parts; 201, operation box; 201a, powder supply bottle; 202, laser cylinder; 202a, powder tank; 203, replacement assembly; 203a, replacement box; 203b, accommodating slot; 203c, limit plate; 203d, replacement plate; 203e, U-shaped through slot; 203f, locking slot; 203g, snap-in slot; 203i, snap-in plate; 203j, through slot; 203k, push rod; 203l, combined air cylinder; 203l-1, telescopic air cylinder; 203l-2, fixing plate; 203m, second spring; 203h, spring. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Example 1

[0028] Reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a laser cleaning and cladding composite device for pipe parts, the device includes a main part 100, including a robot arm 101, a powder supply bottle 201a is fixedly connected to one side of the robot arm 101, a slide rail 104 is installed on one side of the robot arm 101, a group of symmetrical support blocks 103 slide on the slide rail 104, and the support blocks 103 are used to install pipes. The replacement component 200 is located on one side of the main part 100, including an operation box 201 located on one side of the slide rail 104, and a laser tube 202 fixed on one side of the robot arm 101, a replacement component 203 is fixedly connected to the side wall of the laser tube 202, one end of the laser tube 202 is in a deflated shape, a powder supply bottle 201a is fixedly connected to one side of the operation box 201 through a hose, and a filling tube 102 is fixedly connected to one side of the operation box 201 through a hose.

[0029] Specifically, a laser generator is installed in the laser barrel 202 , a powder groove 202a is provided on the side wall of the laser barrel 202 , one end of the powder groove 202a is fixedly connected to a powder supply bottle 201a via a hose, and the other end of the powder groove 202a is located at the deflated end of the laser barrel 202 .

[0030] The system uses a flexible robotic arm 101 as a motion platform, which can not only move freely to the location of the pipeline, but also ensure the precise positioning of the laser tube 202. Whether it is deep cleaning to remove impurities on the inner and outer surfaces of the pipeline, or precise laser cladding to enhance the performance of the pipeline, it can achieve high precision and high efficiency in the operation.

[0031] A set of support blocks 103 symmetrically mounted on the slide rails 104 not only provide a stable support for the pipe, but also drive the pipe to rotate evenly. This design ensures full coverage of the laser action surface, and every part of the pipe can be fully and evenly processed, whether it is the cleaning or cladding process, improving the processing quality and efficiency.

[0032] The operation box 201, as the control center, is cleverly connected to the powder supply bottle 201a and the filling barrel 102 through a hose, forming a closed and controllable powder conveying link. When cladding is required, the operator can start the conveying program through the operation box 201, accurately measure the required material powder from the filling barrel 102, and then send it to the powder tank 202a through the powder supply bottle 201a, and then the laser barrel 202 is precisely sprayed to the surface of the pipeline by the special flat mouth port. The operation box 201 is a prior art, which accurately conveys the metal powder in the powder storage tank to the laser molten pool area by pneumatic or mechanical means. Specifically, the compressed gas (such as argon) provided by the gas source system in the operation box 201 carries the metal powder through the powder delivery pipe, and the control device (such as a screw pump or a pneumatic pump) of the powder feeder in the operation box 201 adjusts the conveying speed and flow of the powder, and finally the powder is evenly and continuously sent to the powder tank 202a to ensure the stability and quality of the cladding process. The entire process is monitored and regulated by the control system to achieve precise control and efficient operation, thus realizing efficient utilization of materials and continuity of the operation process.

[0033] The laser generator integrated inside the laser tube 202 is the technical core of the entire system. The high-energy laser beam it generates can, on the one hand, powerfully remove the attachments on the surface of the pipeline to achieve deep cleaning; on the other hand, it immediately switches the mode after cleaning to perform laser cladding, accurately melts the material powder sprayed from the deflated port and evenly coats it on the pipeline surface to form a high-performance protective layer or reinforcement layer, greatly improving the corrosion resistance, wear resistance or other required characteristics of the pipeline.

[0034] In summary, through highly integrated design and intelligent control, the device has realized a series of complex operation processes from pipeline positioning, cleaning, fixed rotation to cladding treatment, which not only greatly improves work efficiency but also ensures operation quality.

[0035] Example 2

[0036] Reference Figures 2 to 6 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the replacement component 203 includes a replacement box 203a located on the side wall of the laser tube 202, and a receiving groove 203b is provided inside the replacement box 203a. A replacement plate 203d is slidably connected to the replacement box 203a, and the replacement plate 203d is provided with two U-shaped through grooves 203e.

[0037] Among them, the replacement component 203 is designed to quickly and flexibly adapt to the laser processing needs of pipes with different diameters, especially for the convenient replacement of grating plates. Specifically, this component includes a replacement box 203a installed on the side wall of the laser tube 202, and a specific length of the receiving groove 203b is carefully designed inside it. The length of the groove is deliberately set to 1.5 times the length of the replacement plate 203d. There is no need to calculate the moving position and distance of the replacement plate 203d. Just slide the replacement plate 203d to any end of the receiving groove 203b. There is always a U-shaped through groove 203e that is precisely aligned with the optical path of the laser tube 202, which greatly simplifies the replacement process and improves work efficiency. This clever setting lays the foundation for the high efficiency of the replacement process.

[0038] As a core component, the replacement plate 203d is cleverly designed to slide smoothly in the receiving groove 203b, and is equipped with two U-shaped through grooves 203e. The function of these two through grooves is to carry or reserve grating plates respectively. At any given moment, when the replacement plate 203d slides to one end of the receiving groove 203b, there is always a grating plate in a U-shaped through groove 203e that is precisely aligned with the optical path of the laser tube 202, ensuring that the grating plate can effectively guide or regulate the laser beam, while the other through groove 203j remains idle, ready to receive a new grating plate.

[0039] Once the grating needs to be adjusted to match a pipe of a different size, the operator only needs to insert the new grating plate into the currently empty U-shaped slot 203e, and then gently push the replacement plate 203d to slide it to the other side along the receiving slot 203b. This action brings the prepared new grating plate into a position aligned with the laser barrel 202, while the previously used grating plate automatically moves to a non-working position and is idle. The entire process does not require complex tools or lengthy downtime, significantly improving production efficiency and flexibility, and ensuring that the laser processing process can quickly adapt to the requirements of diverse pipe sizes.

[0040] Furthermore, a clamping groove 203g is provided on the side wall of the U-shaped through groove 203e, and a group of symmetrical clamping plates 203i are fixedly connected to the side wall of the clamping groove 203g through a spring 203h. The end of the clamping plate 203i close to the limiting plate 203c is an inclined surface, and the other end of the clamping plate 203i is an arc surface. A through groove 203j is provided on the side of the replacement plate 203d close to the limiting plate 203c, and a push rod 203k is slidably connected in the through groove 203j, and the push rod 203k is in a cone shape on the side away from the limiting plate 203c.

[0041] Among them, this design realizes the stable clamping and easy replacement of the grating plate. The side wall of the U-shaped through groove 203e is built with a clamping groove 203g, and each clamping groove 203g is equipped with a pair of clamping plates 203i connected by springs 203h. One end of these clamping plates 203i is designed to be an inclined surface, and the other end is an arc shape. In the static state, the spring 203h pushes the clamping plate 203i, but because the push rod 203k blocks between the clamping plates 203i, the clamping plate 203i is squeezed into the clamping groove 203g, which will not hinder the smooth insertion of the grating plate.

[0042] The push rod 203k itself has a frustum-shaped structure, and its conical end cooperates with the inclined surface of the clamping plate 203i. When the grating plate needs to be loaded or replaced, the advancement of the grating plate will drive the push rod 203k to move along the through slot 203j on the replacement plate 203d. The frustum-shaped end of the push rod 203k gradually reduces its diameter as it moves, and this dynamic change causes the clamping plate 203i to move forward and backward accordingly. The inclined surface ends of the clamping plate 203i approach each other under the action of the frustum-shaped end of the push rod 203k. At the same time, the arc-shaped end of the clamping plate 203i gradually clamps the edge of the grating plate in this dynamic process. Thanks to the elastic force of the spring 203h and the guiding effect of the inclined surface of the clamping plate 203i, the arc-shaped end finally fits tightly on the grating plate, and together with the U-shaped through slot 203e, the grating plate is firmly fixed.

[0043] This ingenious design ensures that the grating plate replacement process is simple and quick, while ensuring the stable positioning of the grating plate during actual operation.

[0044] Furthermore, a group of symmetrical limiting plates 203c are installed on one side of the accommodating groove 203b, a locking groove 203f is opened on one side of the accommodating groove 203b, a push plate is fixedly connected to one end of the push rod 203k, the push plate on the push rod 203k slides in the combined air cylinder 203l, the combined air cylinder 203l includes a fixed plate 203l-2 fixedly connected to the telescopic air cylinder 203l-1, a telescopic rod is fixedly connected to one side of the telescopic air cylinder 203l-1, the two telescopic air cylinders 203l-1 are connected by a hose, and a second spring 203m is fixedly connected between the push rod 203k and the limiting plate 203c.

[0045] When in use, the push rod 203k slides in the through groove 203j, thereby ensuring the sliding trajectory of the replacement plate 203d. The function of the fixed plate 203l-2 is to prevent the telescopic gas cylinder 203l-1 from moving beyond the limit plate 203c and prevent the telescopic gas from moving toward the U-shaped through groove 203e. At the same time, since the telescopic rod is always squeezed, it is ensured that the replacement plate 203d moves along the limit plate 203c. When the grating plate squeezes the push rod 203k, the push plate on one side of the push rod 203k slides in the combined gas cylinder 203l, so that the telescopic gas cylinder 203l-1 is under the action of atmospheric pressure. The telescopic rod is stretched, and its initial position is in a compressed state. However, due to the round end at one end of the telescopic rod, the round end of the telescopic rod extends into the locking groove 203f. As the replacement plate 203d moves, the telescopic rod slides out of the locking groove 203f. When the grating plate enters the U-shaped through groove 203e, the telescopic gas cylinder 203l-1 is unfolded, and the position of one end of the telescopic gas cylinder 203l-1 changes, getting closer to the side wall of the replacement box 203a, and the telescopic rod is further squeezed. When it moves to the locking groove 203f position, the telescopic rod is inserted into the locking groove 203f, and the grating plate is fixed.

[0046] When the grating plate needs to be replaced, the grating plate to be replaced is inserted into the vacant U-shaped groove 203e, and the push rod 203k is pushed to expand the telescopic gas cylinder 203l-1. At this time, the air pressure in the telescopic gas cylinder 203l-1 corresponding to the telescopic rod that was originally locked is balanced and adjusted through the hose between the two telescopic gas cylinders 203l-1, and part of it is moved to the telescopic gas cylinder 203l-1 corresponding to the grating plate to be replaced, ensuring that both telescopic rods cannot easily enter the locking groove 203f, thereby allowing the replacement plate 203d to slide freely until the grating plate to be replaced moves to overlap with the laser tube 202, and the replaced grating plate is taken out. The push rod 203k is not subjected to force when the grating plate is taken out, and is ejected under the action of the second spring 203m, the telescopic gas contracts, and the grating plate to be replaced is locked. The whole design cleverly combines mechanical movement and pneumatic principles to achieve smooth replacement and stable installation of the grating plate.

[0047] Example 3

[0048] Reference Figures 1 to 6 , which is the third embodiment of the present invention.

[0049] The operation process of the device is as follows: First, the device is moved to the position of the pipe to be processed by using the flexibility of the mechanical arm 101. The symmetrical support blocks 103 installed on the slide rail 104 on one side of the mechanical arm 101 are used to fix the pipe and can drive the pipe to rotate evenly to ensure comprehensive processing.

[0050] The laser generator integrated in the laser tube 202 emits a high-energy laser beam to deeply clean the inner and outer surfaces of the pipeline and effectively remove impurities.

[0051] The powder conveying program is started through the operation box 201 , and after being accurately measured by the filling cylinder 102 , the powder is conveyed to the powder supply bottle 201 a and then the material powder is conveyed into the powder groove 202 a on the side wall of the laser cylinder 202 .

[0052] According to the pipeline size requirements, the appropriate grating plate is selected and accurately aligned to the optical path of the laser tube 202 by replacing the replacement box 203a and the sliding replacement plate 203d in the replacement assembly 203. The U-shaped through groove 203e, the clamping plate 203i and the push rod 203k cooperate to ensure the rapid replacement and stable locking of the grating plate.

[0053] After adjusting the grating plate, start the laser cladding mode. The material powder ejected from the deflated port is precisely melted under the action of the laser and evenly coated on the pipe surface to form a high-performance coating.

[0054] If you need to replace pipes or grating plates of different sizes, the push rod 203k can be easily adjusted through the cooperation with the pneumatic system to achieve quick replacement and re-locking to ensure continuous operation without interruption.

[0055] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims. In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiment (i.e., those features that are not relevant to the best mode currently contemplated for carrying out the invention, or those features that are not relevant to implementing the invention) may be described.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser cleaning and cladding composite device for pipe parts, characterized in that: include, The main body component (100) comprises a mechanical arm (101), one side of the mechanical arm (101) is fixedly connected to a filling cylinder (102), one side of the mechanical arm (101) is installed with a slide rail (104), a group of symmetrical support blocks (103) slide on the slide rail (104), and pipes are installed between the support blocks (103). The replacement component (200) is located on one side of the main component (100), and comprises an operation box (201) located on one side of the slide rail (104), and a laser tube (202) fixed on one side of the mechanical arm (101); a replacement component (203) is fixedly connected to a side wall of the laser tube (202); one end of the laser tube (202) is in a deflated shape. The replacement assembly (203) comprises a replacement box (203a) located on a side wall of the laser tube (202), wherein a receiving groove (203b) is provided inside the replacement box (203a). A group of symmetrical limiting plates (203c) are installed on one side of the accommodating groove (203b), and a locking groove (203f) is opened on one side of the accommodating groove (203b). A replacement plate (203d) is slidably connected inside the replacement box (203a), the replacement plate (203d) is provided with two U-shaped through grooves (203e), a clamping groove (203g) is provided on the side wall of the U-shaped through groove (203e), and the accommodating groove (203b) is 1.5 times the length of the replacement plate (203d). A through slot (203j) is provided on a side of the replacement plate (203d) close to the limit plate (203c), a push rod (203k) is slidably connected in the through slot (203j), and a side of the push rod (203k) away from the limit plate (203c) is in a frustum shape. A second spring (203m) is fixedly connected between the push rod (203k) and the limit plate (203c); one end of the push rod (203k) is fixedly connected to a push plate; the push plate on the push rod (203k) slides in the combined air cylinder (203l); the combined air cylinder (203l) comprises a fixed plate (203l-2) fixedly connected to the telescopic air cylinder (203l-1); one side of the telescopic air cylinder (203l-1) is fixedly connected to a telescopic rod; The invention also comprises the following method of use: using the mechanical arm (101) to move the device to the position of the pipeline to be processed, The pipeline is fixed by the symmetrical support block (103) installed on the slide rail (104) on one side of the mechanical arm (101), and the pipeline is driven to rotate evenly to ensure comprehensive treatment. The laser generator integrated in the laser barrel (202) emits a high-energy laser beam to deeply clean the inner and outer surfaces of the pipeline, effectively removing impurities. The powder conveying program is started through the operation box (201), and after being accurately measured by the filling cylinder (102), the powder is conveyed to the powder supply bottle (201a), and then the material powder is conveyed into the powder groove (202a) on the side wall of the laser cylinder (202). According to the pipeline size requirements, the replacement box (203a) in the replacement assembly (203) and the sliding replacement plate (203d) are used to select a suitable grating plate and align it precisely to the optical path of the laser tube (202).

2. The laser cleaning and cladding composite device for pipe parts according to claim 1 is characterized in that: One side of the operation box (201) is fixedly connected to the powder supply bottle (201a) via a hose, and one side of the operation box (201) is fixedly connected to the filling cylinder (102) via a hose.

3. The laser cleaning and cladding composite device for pipe parts according to claim 2 is characterized in that: A group of symmetrical clamping plates (203i) are fixedly connected to the side wall of the clamping groove (203g) via a spring (203h); one end of the clamping plate (203i) close to the limiting plate (203c) is in the form of an inclined surface, and the other end of the clamping plate (203i) is in the form of an arc surface.

4. The laser cleaning and cladding composite device for pipe parts according to claim 3 is characterized in that: The two telescopic air cylinders (203l-1) are connected via a hose.

5. The laser cleaning and cladding composite device for pipe parts according to claim 4 is characterized in that: A laser generator is installed in the laser barrel (202), and a powder groove (202a) is provided on a side wall of the laser barrel (202). One end of the powder groove (202a) is fixedly connected to the powder supply bottle (201a) via a hose, and the other end of the powder groove (202a) is located at a deflated end of the laser barrel (202).

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