A device for realizing integrated forming of free-form surface cladding and texturing

Abstract

A device for realizing integrated cladding and texturing of free-form surface, it relates to an integrated cladding and texturing device, in which a workpiece sliding guide is installed on the upper surface of a worktable base, a workpiece positioning clamp is connected to the workpiece sliding guide through a workpiece clamp connecting shaft, and the workpiece to be processed is installed on the workpiece positioning clamp; the present invention also includes a powder feeding mechanism, a scanning processing mechanism and a powder feeding mechanism connecting assembly, the powder feeding mechanism is installed on the worktable base through the powder feeding mechanism connecting assembly, and the scanning processing mechanism is installed on the worktable base; the present invention is to solve the problem that in the process of laser cladding of complex curved surfaces, the constant laser focal length leads to poor surface quality of the cladding layer, the powder material spraying rate cannot be changed, the thickness of the cladding layer cannot be effectively controlled, the laser cladding and surface micro-texture insertion must be processed separately, and the processing cycle is too long. The present invention belongs to the field of mechanical processing.

Description

Technical Field

[0001] The invention relates to a surface cladding and texturing integrated forming device, belonging to the technical field of laser cladding. Background Art

[0002] In recent years, studies have found that inserting microtextures on the surface of the tool can improve its wear resistance and anti-adhesion properties, thereby improving its service performance. Laser processing has become a common method for preparing microtextures due to its advantages of simple operation, strong controllability and high efficiency. However, there are many problems with laser preparation technology at present: ① Laser preparation of microtextures causes the material to liquefy rather than vaporize due to the Gaussian distribution of laser energy. Part of the liquefied alloy material flows into the pit, resulting in poor surface quality inside the pit. Some other materials splash out of the pit, forming a remelting layer around the pit, which seriously affects the anti-wear and friction reduction effect. ② When laser cladding is performed on a surface with complex curvature, the curvature of the surface may cause unstable flow of the molten pool and difficulty in forming. In addition, the accuracy of the placement of the microtexture on the front face will affect its positive effect. ③ During the laser processing process, the tool undergoes rapid temperature changes, which will affect its surface integrity and reduce tool performance.

[0003] For problem 1, the advantages of laser cladding micro-texture preparation are used to make up for the defects of laser configuration process. The integrated forming technology of laser cladding and texturing can solve the problems of internal pores around micro-textures and poor tool wear resistance, while enhancing surface performance. Among them, the powder feeding method of laser cladding will affect the integrity of the cladding surface. When the synchronous powder feeding method is used, interference occurs in the recast layer around the micro-textures with smaller spacing, which increases the surface roughness of the substrate and aggravates the tool wear.

[0004] For the second problem, when laser cladding is performed on a surface with complex curvature, due to the curvature of the surface, laser cladding has unstable molten pool flow and difficult forming. Therefore, the processing process should be monitored in real time to ensure that the laser head is perpendicular to the processing position, and adjust the process parameters such as laser power, scanning speed, and powder feeding speed, so as to control the flow and forming of the molten pool in real time and reduce the influence of curvature on the cladding quality. In addition, the influence of cutting process requirements, tool geometry parameters, laser preparation parameters, micro-texture parameters, and the complex curvature of the workpiece on the tool-chip and tool-work contact state is considered to obtain the precise insertion range of micro-texture under different working conditions to maximize the positive role of micro-texture.

[0005] Regarding the third question, during the integrated forming process of laser cladding and texturing, the tool temperature changes rapidly.

[0006] In the initial stage of laser cladding, the surface of the tool is impacted by the laser, which will cause sudden heating, cracks and pores; after preparation, the temperature of the external environment is too different from the temperature of the tool body, and the tool is suddenly cooled to produce residual stress. Therefore, it is very important to heat treat the tool before and after cladding. Summary of the invention

[0007] The present invention aims to solve the problems that during the laser cladding process of complex curved surfaces, the surface quality of the cladding layer is poor, the thickness of the cladding layer cannot be effectively controlled, and the laser cladding and surface micro-texturing insertion must be processed separately, resulting in a long processing cycle. Furthermore, a device for realizing integrated forming of free-form surface cladding and texturing is proposed.

[0008] The technical solution adopted by the present invention to solve the above-mentioned problems is: the present invention includes a workbench base, a workpiece sliding guide rail, a workpiece positioning clamp and a workpiece fixture connecting shaft, the workbench base is a rectangular plate, the workpiece sliding guide rail is installed on the upper surface of the workbench base, the workpiece positioning clamp is connected to the workpiece sliding guide rail through the workpiece fixture connecting shaft, and the workpiece to be processed is installed on the workpiece positioning clamp; the present invention also includes a powder feeding mechanism, a scanning processing mechanism and a powder feeding mechanism connecting assembly, the powder feeding mechanism is installed on the workbench base through the powder feeding mechanism connecting assembly, and the scanning processing mechanism is installed on the workbench base.

[0009] Furthermore, the powder feeding mechanism includes a powder storage box, a pipeline assembly and two powder spraying ports; the two powder spraying ports are symmetrically arranged above the workpiece to be processed, and the powder storage box is connected to the two powder spraying ports through the pipeline assembly.

[0010] Furthermore, the pipeline assembly includes a powder storage longitudinal connecting pipe, a powder storage transverse connecting pipe, a powder delivery pipe and two powder outlet pipes; the upper end of the powder storage longitudinal connecting pipe is connected to the outlet of the powder storage box, the lower end of the powder storage longitudinal connecting pipe is connected to the middle part of the powder storage transverse connecting pipe, and the powder storage longitudinal connecting pipe and the powder storage weighing connecting pipe form an inverted T-shaped structure, the two ends of the powder storage weighing connecting pipe are respectively connected to the inlets of the two powder delivery pipes, and the outlet of the powder delivery pipe is connected to the powder spraying port through the powder outlet pipe.

[0011] Furthermore, the scanning and processing mechanism includes a scanning and processing positioning plate, a three-dimensional scanner, a fiber laser, a cladding laser, a jet nozzle and three scanning and processing mechanism connecting axes; the scanning and processing positioning plate is installed on the workbench base, and the three-dimensional scanner, the fiber laser and the cladding laser are arranged below the scanning technician positioning plate, and the three-dimensional scanner, the fiber laser and the cladding laser are respectively connected to the circular track on the lower surface of the scanning and processing positioning plate through a scanning and processing mechanism connecting axis.

[0012] Furthermore, the powder feeding mechanism connecting assembly includes two powder feeding tube support seats and two powder feeding tube sliding tracks; the two powder feeding tube sliding tracks are symmetrically arranged on both sides of the workpiece positioning clamp, and the center line of the powder feeding tube sliding track along the length direction is parallel to the center line of the workbench base along the length direction. A powder feeding tube support seat is installed on each powder feeding tube sliding track, and the powder feeding tube support seat can move back and forth in a straight line along the powder feeding tube sliding track, and the powder feeding pipeline is installed on the powder feeding tube support seat.

[0013] The beneficial effects of the present invention are:

[0014] The present invention realizes integrated forming of laser cladding texture preparation, makes up for the defects in the laser configuration process, greatly reduces the material surface forming and repairing time, and improves production efficiency; preheating the tool can effectively improve the quality of the cladding layer and improve adhesion; by inputting process requirements, the micro-texture is accurately placed in the area to give full play to the positive role of the micro-texture; the surface of the tool to be processed is scanned by a three-dimensional scanner, and the programmer is programmed to control the real-time change of the laser focal length during the processing process to ensure that the laser and the cladding position are vertical in real time, avoiding poor cladding layer surface when cladding complex curved surfaces; when the tool is powder-sprayed, the tool-chip and tool-work contact states will change due to changes in process parameters, and the powder-spraying head will accurately spray powder according to the placement area determined by the system; when the micro-texture spacing is large, the tool surface is fixed to the workpiece surface, and ... hours, the laser and powder feeding are not carried out synchronously to avoid interference between adjacent micro-textured cladding layers; by real-time control of the powder outlet pipeline and the powder spray flow rate of the powder outlet, the powder outlet can be adjusted at any time to avoid the phenomenon that the thickness of the cladding layer cannot be effectively controlled, and to ensure the continuous, efficient and stable operation of the entire mechanism; the system controller controls the air jet to pass inert gas to avoid oxidation of the cladding material due to high temperature during the cladding process; during the cladding process, the temperature sensor in the preheating workbench monitors in real time, and the temperature signal enters the system controller to control the laser head for temperature regulation at any time; after the cladding is completed, the system automatically scans the processed surface, generates a three-dimensional model and compares it with the ideal three-dimensional model. If secondary processing is required, the system automatically generates compensating processing parameters; after processing, the preheating workbench is used to slowly cool down the tool to reduce residual stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 It is a flowchart of the workflow of the present invention;

[0017] Figure 3 It is a working principle diagram of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a scanning processing mechanism;

[0019] Figure 5It is a structural diagram of the powder feeding mechanism;

[0020] Figure 6 It is a structural diagram of the workbench mechanism;

[0021] Figure 7 It is a schematic diagram of the structure of the powder delivery pipeline;

[0022] Figure 8 It is a schematic diagram of the structure of the powder outlet pipeline;

[0023] Fig. 9 This is a schematic diagram of the back structure of the powder storage box;

[0024] Figures 1 to 9 In the figure, 11-powder storage box, 12-longitudinal connecting pipe of powder storage box, 13-lateral connecting pipe of powder storage box, 14-powder delivery pipe, 15-powder outlet pipe, 16-adjustable powder spray port, 21-powder delivery pipe support seat, 22-workbench base, 23-powder delivery pipe sliding track, 31-workpiece fixture sliding guide rail, 32-workpiece positioning clamp, 33-workpiece fixture connecting shaft, 41-workpiece to be processed, 51-scanning processing positioning plate, 52-3D scanner, 53-fiber laser, 54-cladding laser, 55-jet nozzle, 56-scanning processing mechanism connecting shaft, 57-preheating workbench, 58-temperature sensor. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The embodiment of the present invention provides a device for realizing integrated cladding and texturing of a free-form surface.

[0028] like Figures 1 to 3 As shown, the device includes a workbench base 22, a workpiece sliding guide rail 31, a workpiece positioning clamp 32 and a workpiece fixture connecting shaft 33. The workbench base 22 is a rectangular plate body. There are two groups of workpiece sliding guide rails 31. The two groups of workpiece sliding guide rails 31 are symmetrically fixed at both ends of the upper surface of the workbench base 22. Each group of workpiece sliding guide rails 31 consists of an X-axis guide rail and a Y-axis guide rail. The X-axis guide rail and the Y-axis guide rail are arranged in an inverted T shape, and the lower end of the Y-axis guide rail is slidably connected to the X-axis guide rail. The X-axis guide rail is fixed to the upper surface of the end of the workbench base 22, and the center line of the X-axis guide rail along the length direction is aligned with the bottom of the workbench. The seat 22 is parallel to the center line in the width direction, and the workpiece positioning clamp 32 is located between the two groups of workpiece sliding guide rails 31. The two sides of the workpiece positioning clamp 32 are slidingly connected to the Y-axis guide rails of the two groups of workpiece sliding guide rails 31 through two workpiece clamp connecting shafts 33. The workpiece connecting shaft 33 can slide linearly up and down along the Y-axis guide rail. The workpiece 41 to be processed is clamped on the workpiece positioning clamp 32, and the powder feeding mechanism connecting assembly is installed on both sides of the upper surface of the workbench base 22. The powder feeding mechanism is installed on the powder feeding mechanism connecting assembly, and the scanning processing mechanism is installed at one end of the upper surface of the workbench base 22.

[0029] The system controller sends the drawn program to the powder feeding mechanism and controls the powder feeding position in real time.

[0030] Among them, Figure 1 and Figure 5 As shown, the powder feeding mechanism includes a powder storage box 11, a longitudinal connecting pipe 12 for the powder storage box, a transverse connecting pipe 13 for the powder storage box, two powder feeding pipes 14, two powder outlet pipes 15 and two powder spraying ports 16; the upper end of the longitudinal connecting pipe 12 for the powder storage box is connected to the outlet at the bottom of the powder storage box 11, and the lower end of the longitudinal connecting pipe 12 for the powder storage box is connected to the middle of the transverse connecting pipe 13 for the powder storage box, and the longitudinal connecting pipe 12 for the powder storage box and the transverse connecting pipe 13 for the powder storage box form an inverted T-shaped structure, and the two ends of the transverse connecting pipe 13 for the powder storage box are respectively connected to the inlets of the two powder feeding pipes 14, and the outlet of the powder feeding pipe 14 is connected to the inlet of the powder outlet pipe 15, and the powder spraying port 16 is installed at the outlet of the powder outlet pipe 15. In actual work, the two powder spraying ports 16 are located on both sides of the workpiece 41 to be processed.

[0031] The bottom of the powder storage box 11 is connected to the longitudinal connecting pipe 12 of the powder storage box, and can slide relative to each other to adjust the powder feeding height in real time; the powder storage box 11 is connected to the system controller, and the system controller controls the internal pressure of the powder storage box 11 and the powder feeding time.

[0032] The top of the powder storage box transverse connecting pipe 13 is connected to the powder storage box longitudinal connecting pipe 12, and the powder delivery pipe 14 is matched with both ends of the powder storage box transverse connecting pipe 13 respectively, and can slide relative to each other to adjust the powder delivery position in real time.

[0033] The powder delivery pipe 14 cooperates with the powder outlet pipe 15 through the circumferential track of the end surface and can generate relative rotation to adjust the powder delivery flow rate.

[0034] The powder spraying port 16 cooperates with the powder outlet pipe 15 and can rotate relative to each other to adjust the powder spraying angle.

[0035] like Figure 7 As shown, the cross-sectional end face of the powder delivery pipe 14 is provided with four circular through holes with different radii, which are four different powder outlets for controlling the powder outlet flow rate; the pipe size of the powder outlet pipe 15 is the same as the size of the circular through hole with the largest radius on the end face of the powder delivery pipe 14; the powder storage box 11 is connected to the system controller, which controls the internal pressure of the powder storage box and the powder delivery timing; and the controller sends the program drawn by X and Y to the powder delivery mechanism to control the powder delivery position in real time.

[0036] like Figure 8 As shown, the outlet of the powder outlet pipe 15 is in a trumpet shape, which makes it easier for the powder to be dispersed here and avoids the powder from being concentrated and sticking to each other. The pipe size of the powder outlet pipe 15 is the same as the size of the circular through hole with the largest radius on the end face of the powder delivery pipe 14.

[0037] Among them, Figure 1 and Figure 6 As shown, the powder delivery mechanism connecting assembly includes two powder delivery tube support seats 21 and two powder delivery tube sliding tracks 23. The two powder delivery tube sliding tracks 23 are symmetrically arranged on both sides of the upper surface of the workbench base 22, and the center line of the powder delivery tube sliding track 23 along the length direction is parallel to the center line of the workbench base 22 along the length direction. The two ends of the powder delivery tube sliding track 23 are fixedly connected to the upper surface of the workbench base 22 through a bracket. The powder delivery tube support seat 21 is slidably connected to the powder delivery tube sliding track 23. The powder delivery tube support seat 21 can reciprocate in a straight line along the powder delivery tube sliding track 23, and the end of the powder delivery pipeline 14 is fixed on the powder delivery tube support seat 21.

[0038] Among them, the workbench mechanism receives the program from the X and Y axis programmer, the tool fixture sliding guide rail 31 moves in real time in the Y direction along the track, the tool positioning clamp 32 moves in real time in the X direction along the tool fixture connecting shaft 33, and the tool 41 to be processed is clamped by the tool positioning clamps 32 at both ends.

[0039] Among them, Figure 1 , Figure 2 and Figure 6As shown, one of the two powder delivery tube sliding tracks 23 is a lead screw, and the other powder delivery tube sliding track is a smooth rod. The powder delivery tube support seat 21 installed on the lead screw is provided with a screw hole matching the lead screw, and the powder delivery tube support seat 21 installed on the smooth rod is provided with a sliding hole matching the smooth rod. One end of the lead screw is coaxially fixedly connected with the motor shaft of the driving motor 59. The motor 59 drives the lead screw to rotate forward or reverse, so that the powder delivery tube support seat 21 installed on the lead screw can reciprocate along the straight line of the lead screw.

[0040] Among them, Figure 1 and Figure 4 As shown, the scanning and processing mechanism includes a scanning and processing positioning plate 51, a three-dimensional scanner 52, a fiber laser 53, a cladding laser 54, a paint spraying port 55 and a scanning and processing mechanism connecting shaft 56. The scanning and processing positioning plate 51 is installed on the workbench base 22 through a suspension. The lower surface of the scanning and processing positioning plate 51 is provided with a circular track. The three-dimensional scanner 52, the fiber laser 53 and the cladding laser 54 are respectively slidably connected to the circular track on the lower surface of the scanning and processing positioning plate 51 through a scanning and processing mechanism connecting shaft 56, and the paint spraying port 55 is installed at the lower end of the cladding laser 54.

[0041] Four through holes are provided at the bottom of the cladding laser 54, and the air jets 55 are respectively placed in the four through holes of the laser cladding device 54. The scanning processing positioning plate 51 is connected to the system controller. The scanning processing positioning plate 51 can send the three-dimensional model presented by the three-dimensional scanner 52 to the central controller. The scanning processing positioning plate 51 receives the program compiled by the Z-axis programmer to control the focal length of the cladding laser 54 and the fiber laser 53 to run according to the program in real time.

[0042] Among them, the scanning processing mechanism also includes a preheating workbench 57 and a temperature sensor 58; the preheating workbench 57 is installed on the workbench base, and the bottom of the preheating workbench 57 cooperates with the workbench. The preheating workbench includes a preheating module and a temperature sensor 58. Before the start of cladding, the preheating workbench preheats the tool, and the temperature sensor 58 rises to the working position; during the cladding process, the temperature sensor 58 monitors the surface temperature of the tool in real time and sends the temperature signal to the system controller; after the cladding is completed, the temperature sensor 58 automatically returns to the initial position, and the preheating workbench performs annealing treatment.

[0043] Among them, Figure 1 and Figure 6 As shown, the suspension is composed of a crossbeam and a column, the lower end of the column is fixedly connected to one end of the upper surface of the workbench base 22, one end of the crossbeam is fixedly connected to the upper end of the column, and a slide rail is provided on the lower surface of the crossbeam along its length direction, and the middle part of the upper surface of the scanning processing positioning plate 51 is slidably connected to the slide rail on the lower surface of the crossbeam.

[0044] like Fig. 9 As shown, two racks 1101 are provided on the back of the powder storage box 11, and the two racks 1101 are arranged vertically and parallel to each other. The upper part of the rack 1101 is fixedly connected to the back of the powder storage box 11, and two mutually meshing gears 1102 are provided between the lower parts of the two racks 1101. The two gears 1102 are respectively meshed with the two racks 1101, and one of the gears 1102 is coaxially fixedly sleeved on the motor shaft of the lifting motor 1103, and the lifting motor 1103 is fixed to the base through the motor frame 1104;

[0045] The working process of the present invention is:

[0046] Step 1: After setting the powder spraying thickness through the system controller, send the three-dimensional model of the workpiece to the Z-axis program knitting machine;

[0047] Step 2, the Z-axis program weaver automatically draws a program to control the processing path of the cladding laser 54 and the fiber laser 53 according to the three-dimensional model of the workpiece;

[0048] Step 3: The Z-axis programmer finishes programming and simplifies the three-dimensional model into a two-dimensional model and sends it to the X / Y programmer;

[0049] Step 4, the X / Y axis programmer draws a program to control the running paths of the X axis guide rail and the Y axis guide rail of the workpiece sliding guide rail 31 according to the two-dimensional model;

[0050] Step 5, the workpiece positioning clamp 32 clamps the workpiece 41 to be processed, and driven by the two workpiece clamp connecting shafts 33, moves along the X-axis guide rail and the Y-axis guide rail of the workpiece sliding guide rail 31 according to a preset program;

[0051] Step 6: The powder delivery pipe support seat 21 drives the powder delivery pipe 14 to move along the powder delivery pipe sliding guide rail 23 according to a pre-programmed program;

[0052] Step 7, the three-dimensional scanner 52, the fiber laser 53, and the cladding laser 54 move along the circumferential guide rail on the lower surface of the scanning processing positioning plate 51 according to the pre-programmed processing path;

[0053] Step 8: During the processing, the system controller controls the pressure in the powder storage box 11, the powder discharge time of the powder storage box 11, and the processing time of the fiber laser 53 and the cladding laser 54. The system controller controls the powder discharge pipe 15 to rotate relative to the powder delivery pipe 14, so that the four through holes with different radii in the powder delivery pipe 4 can be adjusted to a suitable gear position. By controlling the gear position of the powder delivery pipe 14 and the pressure in the powder storage box 11, the powder discharge flow rate is controlled;

[0054] Step 9, the system controller controls the jet port 55 to introduce inert gas to prevent oxidation of the cladding material due to high temperature during the cladding process. The entire device can achieve cladding first and then inserting micro-textures, or inserting micro-textures first and then cladding. It can simply and conveniently achieve cladding and micro-texture insertion into various complex free-form surfaces.

[0055] How it works

[0056] The present invention inputs parameters, and the system automatically identifies the insertion area according to the process parameter formula to generate processing parameters; the three-dimensional scanner scans the three-dimensional model of the tool to be processed, and sends the three-dimensional model to the system controller, and the system controller sends the three-dimensional model to the Z-axis programmer, and the Z-axis programmer sends the program to the scanning processing mechanism after the program is compiled, so that the focal lengths of the cladding laser and the optical fiber laser are adjusted in real time according to the Z-axis program, and the thickness of the cladding layer is consistent during the cladding process, and the depth of the micro-texture is consistent during the micro-texture insertion process; after the Z-axis programmer draws the program, the three-dimensional model is projected into a two-dimensional model and sent to the X-axis and Y-axis programmers, and the X-axis and Y-axis programmers perform programming, and send the compiled program to the workbench mechanism, so that the tool positioning clamp runs along the X direction according to the program, and the tool fixture sliding guide runs along the Y direction according to the program.

[0057] Before processing, the system controller controls the preheating workbench to preheat the tool; the system controller controls the pressure in the powder storage box, the powder storage box powder discharge time and the laser processing time; the system controller controls the powder discharge pipe to rotate relative to the powder feeding pipe and adjusts it to a suitable gear, and controls the gear position of the powder discharge pipe and the pressure in the powder storage box to control the powder discharge flow rate; when the gear position of the powder discharge pipe does not meet the actual processing requirements, the powder discharge port will slightly expand or shrink to fine-tune the flow rate; when the tool is sprayed with powder, the tool-chip and tool-work contact states will change due to changes in process parameters. At this time, the powder spray head moves with the system The system controls the injection port to inject inert gas to prevent oxidation of the cladding material due to high temperature during the cladding process. During the cladding process, the temperature sensor in the preheating table monitors the tool temperature in real time, transmits the temperature signal back to the system controller, and then controls the laser head to adjust the laser power. After the processing is completed, the 3D scanner scans the tool surface again to generate a 3D model for comparison with the ideal model. If the processing is not good, the system controller automatically generates a program for secondary processing based on the processed 3D model. After the processing is completed, the system controller controls the preheating table to slowly cool the tool. The entire composite structure can be used for single melting and single micro-texture insertion, or it can be clad first and then micro-texture insertion, or micro-texture insertion first and then cladding, so as to achieve simple and convenient processing of various complex free-form surfaces.

[0058] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A device for realizing integrated cladding and texturing of a free-form surface, comprising a worktable base (22), a workpiece sliding guide rail (31), a workpiece positioning clamp (32) and a workpiece clamp connecting shaft (33); characterized in that: It also includes a powder feeding mechanism, a scanning processing mechanism and a powder feeding mechanism connecting assembly, wherein a workpiece sliding guide rail (31) is mounted on the upper surface of a worktable base (22), a workpiece positioning clamp (32) is connected to the workpiece sliding guide rail (31) via a workpiece clamp connecting shaft (33), a workpiece to be processed (41) is mounted on the workpiece positioning clamp (32), the powder feeding mechanism is mounted on the worktable base (22) via the powder feeding mechanism connecting assembly, and the scanning processing mechanism is mounted on the worktable base (22); The powder feeding mechanism comprises a powder storage box (11), a pipeline assembly and two powder spraying ports (16); the two powder spraying ports (16) are symmetrically arranged above the workpiece (41) to be processed, and the powder storage box (11) is connected to the two powder spraying ports (16) via the pipeline assembly; The pipeline assembly comprises a powder storage longitudinal connecting pipe (12), a powder storage transverse connecting pipe (13), a powder delivery pipe (14) and two powder outlet pipes (15); the upper end of the powder storage longitudinal connecting pipe (12) is connected to the outlet of the powder storage box (11), the lower end of the powder storage longitudinal connecting pipe (12) is connected to the middle of the powder storage transverse connecting pipe (13), and the powder storage longitudinal connecting pipe (12) and the powder storage weighing connecting pipe (13) form an inverted T-shaped structure, the two ends of the powder storage weighing connecting pipe (13) are respectively connected to the inlets of the two powder delivery pipes (14), and the outlet of the powder delivery pipe (14) is connected to the powder spraying port (16) through the powder outlet pipe (15); The scanning and processing mechanism comprises a scanning and processing positioning plate (51), a three-dimensional scanner (52), a fiber laser (53), a cladding laser (54), an air jet (55) and three scanning and processing mechanism connecting shafts (56); the scanning and processing positioning plate (51) is mounted on the workbench base (22), the three-dimensional scanner (52), the fiber laser (53) and the cladding laser (54) are arranged below the scanning and processing positioning plate (51), and the three-dimensional scanner (52), the fiber laser (53) and the cladding laser (54) are respectively connected to the circumferential track on the lower surface of the scanning and processing positioning plate (51) via a scanning and processing mechanism connecting shaft (56); The powder delivery mechanism connection assembly comprises two powder delivery pipe support seats (21) and two powder delivery pipe sliding tracks (23); the two powder delivery pipe sliding tracks (23) are symmetrically arranged on both sides of the workpiece positioning clamp (32); the center line of the powder delivery pipe sliding track (23) along the length direction is parallel to the center line of the workbench base (22) along the length direction; a powder delivery pipe support seat (21) is installed on each powder delivery pipe sliding track (23); and the powder delivery pipe support seat (21) can reciprocate linearly along the powder delivery pipe sliding track (23); and the powder delivery pipeline (14) is installed on the powder delivery pipe support seat (21).

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