A laser cladding powder mixing machine
Patent Information
- Application Number
- CN202522210607.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-11-15
- Filing Date
- 2025-10-20
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-20
AI Technical Summary
但在实际操作过程中，由于粉末自身具有易吸潮、颗粒间存在范德华力等特性，导致粉末在储存和转运过程中极易出现结块、团聚现象，这就给后续的称量环节带来了严重影响：一方面，团聚颗粒会导致粉末在称量工具中分布不均，造成单次称量结果与预设配方比例存在偏差；另一方面，在多次称量不同种类粉末时，团聚颗粒的存在会使每次称量的误差叠加，进一步降低复合粉末的成分精度
本实用新型中，升降液压缸驱动升降托盘向上压缩粉箱内的粉末时，会对大块结块施加轴向压力，该压力可直接破碎直径≥3mm的疏松结块，使粉末整体形成密度均匀的“致密料层”，经压实后，粉末结块率可大幅下降，之后，PLC控制器按1mm分段控制升降液压缸顶出粉末，推粉刮刀对顶出的“1mm厚致密料层”施加水平剪切力，该剪切力将“致密料层”切割为与顶出体积完全匹配的“定量料块”，即使存在微量微小结块，也会在推粉刮刀的剪切作用而碎裂，保证所取得的体积是一定的，确保每次推送的粉末体积精准对应预设重量，保证所取得的体积是一定的，从而保证定量，不会影响当前称量的精度，相较于传统人工配粉，本技术方案通过“结块破碎-致密成型-分段顶出-剪切定量”的连贯配合，将粉体的重量与体积实现精准关联换算，不仅大幅缩短了配粉周期，还显著提高了生产效率，能够满足大规模工业化生产的需求。
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Figure CN224793421U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser cladding technology, specifically to a laser cladding powder mixing machine. Background Technology
[0002] Laser cladding technology, as a highly representative advanced surface modification technology in the current industrial field, can form a high-performance cladding layer on the surface of a substrate, significantly improving the substrate's key properties such as wear resistance, corrosion resistance, and high-temperature resistance. It has been widely used in many important fields such as aerospace, petrochemical, machinery manufacturing, and automotive industries, and plays an irreplaceable role in extending the service life of parts, reducing production costs, and promoting the upgrading of high-end equipment manufacturing.
[0003] In the practical application of laser cladding technology, the performance and surface quality of the cladding layer directly determine the final product's performance and market competitiveness. Powder composition, as the core raw material of laser cladding, plays a crucial role in regulating the microstructure, mechanical properties, chemical stability, and surface smoothness of the cladding layer. To achieve precise optimization of the cladding layer's performance, the industry commonly employs a doping method by adding functional powders to the base alloy powder. Common functional powders include rare earth oxide powders, lubricating phase powders, hard phase powders, and cast aluminum alloy powders. Rare earth oxide powders can effectively refine the cladding layer's grain size and improve microstructure uniformity; lubricating phase powders can reduce the coefficient of friction and enhance its self-lubricating properties; hard phase powders can significantly improve the hardness and wear resistance of the cladding layer; and cast aluminum alloy powders help strengthen the bond strength between the cladding layer and the aluminum substrate, meeting the needs of specific lightweight applications.
[0004] However, in current laser cladding production practices, the powder doping process still primarily relies on manual powder preparation, typically involving three core steps: powder crushing, weighing, and mixing. In practice, due to the inherent moisture absorption and van der Waals forces between particles, powder is prone to agglomeration and clumping during storage and transport. This severely impacts the subsequent weighing process: firstly, agglomerated particles lead to uneven powder distribution in the weighing apparatus, causing deviations between single weighing results and the preset formula ratio; secondly, when weighing different types of powder multiple times, the presence of agglomerated particles accumulates the errors from each weighing, further reducing the accuracy of the composite powder composition. To compensate for this error, operators often need to repeatedly adjust the powder content and perform multiple weighing verifications. This significantly increases labor intensity, prolongs the powder preparation cycle, reduces production efficiency, and makes it difficult to fundamentally guarantee the consistency and stability of the composite powder composition. Consequently, it adversely affects the performance and surface quality of the laser cladding layer, limiting the further application and promotion of laser cladding technology in fields requiring high precision and high reliability. Utility Model Content
[0005] The purpose of this invention is to provide a laser cladding powder mixing machine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A laser cladding powder mixing machine includes a frame, a powder pushing mechanism, a powder collecting mechanism, a detection and control mechanism, and at least two metering devices. The metering devices include a pressing mechanism, a powder box, and a lifting mechanism, which are fixedly arranged on the frame from top to bottom. Powder boxes are used to hold powder; The clamping mechanism is used to drive the metal porous sintered plate fixed at its bottom to rise and fall. The metal porous sintered plate has a blocked state that blocks the top outlet of the powder box and an idle state that is suspended above the top outlet of the powder box. When the metal porous sintered plate is in the blocked state, air is allowed to escape between its bottom surface and the top surface of the powder box, but powder is not allowed to escape. The lifting mechanism can extend and retract vertically, and its top lifting end extends into the interior of the powder box and slides and seals with the inner surface of the powder box. The powder pushing mechanism is horizontally fixed on one side of the powder box top discharge port, and is used to push the powder pushed out of the powder box by the lifting mechanism into the powder collection mechanism; The detection and control mechanism includes a PLC controller, and a pressure sensor and an electromagnetic sensor electrically connected to the PLC controller; the pressure sensor is installed on the lifting mechanism; the electromagnetic sensor is installed on the lifting mechanism and is used to detect the extension and retraction stroke of the lifting mechanism.
[0007] Preferably, the rack has a first layer, a second layer, and a third layer arranged from bottom to top; The top of both the powder pushing mechanism and the powder box is fixed to the second layer; The clamping mechanism is fixed on the third layer; Both the lifting mechanism and the powder collection mechanism are located on the first floor.
[0008] Preferably, the powder pushing mechanism includes a powder pushing seat, a powder pushing hydraulic cylinder, and a powder pushing scraper; The powder pushing hydraulic cylinder is horizontally fixed on the frame via a powder pushing seat; The powder-pushing scraper is fixedly connected to the free end of the piston rod of the powder-pushing hydraulic cylinder.
[0009] Preferably, the blade of the powder-pushing scraper is a right-angled trapezoid, and the bevel of the blade is at an 85° angle to the surface of the second layer.
[0010] Preferably, the clamping mechanism includes a clamping cylinder, a fixed base, and an aluminum sleeve; The clamping cylinder is vertically fixed on the frame and can extend and retract vertically downwards; The fixed seat is installed at the free end of the piston rod of the clamping cylinder; The aluminum sleeve is fitted onto the outside of the mounting base.
[0011] Preferably, the lifting mechanism includes a lifting hydraulic cylinder and a lifting tray; The lifting hydraulic cylinder is vertically mounted on the frame; The lifting pallet is fixedly installed at the free end of the piston rod of the lifting hydraulic cylinder, and the edge of the lifting pallet is slidably and sealed to the inner surface of the powder box through a sealing ring; The pressure sensor is installed at the small end outlet of the lifting hydraulic cylinder.
[0012] Preferably, the powder collection mechanism includes a powder collection box and a powder collection funnel; The powder collecting funnel and the powder collecting box are fixedly installed on the frame in an upper and lower configuration. The powder pushing mechanism is used to push the powder pushed out of the powder box by the lifting mechanism into the powder collecting funnel. The powder rolls down into the powder collecting box by its own gravity.
[0013] Preferably, the second layer has a first through hole and a second through hole equal in number to the powder box; The top end of the powder collecting funnel is fixed in the first through hole; The top discharge port of the powder box is fixed in the second through hole.
[0014] Compared with the prior art, the beneficial effects of this utility model are: In this invention, when the lifting hydraulic cylinder drives the lifting pallet to compress the powder in the powder box, it applies axial pressure to large clumps. This pressure can directly break up loose clumps with a diameter ≥3mm, causing the powder to form a uniformly dense "dense layer." After compaction, the powder agglomeration rate can be significantly reduced. Then, the PLC controller controls the lifting hydraulic cylinder to eject the powder in 1mm segments. The powder-pushing scraper applies a horizontal shearing force to the ejected "1mm thick dense layer," cutting it into "quantitative blocks" that perfectly match the ejected volume. Even if micro-clumps exist... Even tiny clumps will break up under the shearing action of the powder-pushing scraper, ensuring a consistent volume. This guarantees that the volume of powder pushed each time precisely corresponds to the preset weight, thus ensuring quantitative measurement and not affecting the accuracy of the current weighing. Compared to traditional manual powder mixing, this technical solution achieves precise correlation and conversion between powder weight and volume through the coherent coordination of "clump breaking - compacting - segmented ejection - shearing quantitative measurement". This not only significantly shortens the powder mixing cycle but also significantly improves production efficiency, meeting the needs of large-scale industrial production. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram showing the position and structure of the first through hole and the second through hole of this utility model; Figure 3 This is a schematic diagram of the rear view structure of this utility model; Figure 4 This is a top view of the powder pushing mechanism of this utility model. Figure 5 This is a side view sectional structural diagram of the powder pushing mechanism of this utility model; Figure 6 This is a schematic diagram of the pressing mechanism and lifting mechanism of this utility model; Figure 7 This is a front view sectional structural diagram of the pressing mechanism and lifting mechanism of this utility model; Figure 8 This is a schematic diagram of the lifting mechanism of this utility model.
[0016] In the diagram: 1. Frame; 11. First layer; 12. Second layer; 121. First through hole; 122. Second through hole; 13. Third layer; 2. Powder pushing mechanism; 21. Powder pushing seat; 22. Powder pushing hydraulic cylinder; 23. Powder pushing scraper; 3. Pressing mechanism; 31. Pressing cylinder; 32. Fixed seat; 33. Aluminum sleeve; 34. Metal porous sintered plate; 4. Powder box; 5. Lifting mechanism; 51. Lifting hydraulic cylinder; 52. Lifting tray; 61. Powder collection box; 62. Powder collection funnel; 71. PLC controller; 72. Pressure sensor; 73. Electromagnetic sensor. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-8 This utility model provides a technical solution: A laser cladding powder mixing machine includes a frame 1, a powder pushing mechanism 2, a powder collecting mechanism, a detection and control mechanism, and at least two metering devices. In this embodiment, two metering devices are provided. The specific structure and working principle of these components are described in detail below.
[0019] As shown in the figure, the frame 1 has a first layer 11, a second layer 12 and a third layer 13 arranged from bottom to top. The first layer 11 and the second layer 12 are rectangular plates of approximately the same size, while the third layer 13 is a rectangular plate of smaller size than the second layer 12. The first layer 11 and the second layer 12, as well as the second layer 12 and the third layer 13, are fixedly connected by columns.
[0020] The detection and control mechanism includes a PLC controller 71, a pressure sensor 72, and an electromagnetic sensor 73 electrically connected to the PLC controller 71. The PLC controller 71 can be a DVP-16SN from Wuhan Shijia Weiye Kexun Electronic Technology Co., Ltd., the pressure sensor 72 can be an RS485 from Shandong Renke Measurement and Control Technology Co., Ltd., and the electromagnetic sensor 73 can be an HTD-200-6 from Deyang Dongfang Yili Electromechanical Equipment Co., Ltd. Through the selection and use of these electrical components, those skilled in the art can perform installation, testing, and use effectively. Alternatively, other suitable models can be selected based on actual usage to achieve data acquisition, communication transmission, and processing. The pressure sensor 72 is installed on the lifting mechanism 5; the electromagnetic sensor 73 is installed on the lifting mechanism 5 and is used to detect the extension and retraction stroke of the lifting mechanism 5.
[0021] The metering device includes a pressing mechanism 3, a powder box 4, and a lifting mechanism 5, which are fixedly mounted on the frame 1 from top to bottom; the pressing mechanism 3 is fixed on the third layer 13; the tops of the powder pushing mechanism 2 and the powder box 4 are both fixed on the second layer 12; the lifting mechanism 5 and the powder collecting mechanism are both located on the first layer 11.
[0022] The powder box 4 is used to hold powder; specifically, in some embodiments, the powder box 4 can be a vertically arranged cylindrical shape, and its material can be stainless steel.
[0023] The clamping mechanism 3 is used to drive the metal porous sintered plate 34, which is fixedly installed at its bottom, to rise and fall. The metal porous sintered plate 34 has a blocked state that blocks the top discharge port of the powder box 4 and an idle state that is suspended above the top discharge port of the powder box 4 (as shown in the figure, it is the idle state). When the metal porous sintered plate 34 is in the blocked state, air is allowed to escape between its bottom surface and the top surface of the powder box 4, but powder is not allowed to escape. Specifically, the clamping mechanism 3 includes a clamping cylinder 31, a fixed seat 32, and an aluminum sleeve 33. The clamping cylinder 31 is vertically fixed on the frame 1 (third layer 13), and the clamping cylinder 31 can extend and retract vertically downward. The fixed seat 32 is installed on the free end of the piston rod of the clamping cylinder 31. The aluminum sleeve 33 is fitted on the outside of the fixed seat 32, and the diameter of the aluminum sleeve 33 should be larger than the diameter of the top discharge port of the powder box 4. Among them, the free end of the piston rod of the clamping cylinder 31, the fixed seat 32, and the aluminum sleeve 33 together constitute the bottom lifting end of the clamping mechanism 3.
[0024] Specifically, the porous metal sintered plate 34 in this embodiment is made of pure titanium, titanium alloy or stainless steel as raw material and is sintered by powder metallurgy. The pore size can be precisely controlled between 10-30μm. Since the minimum particle size of the laser cladding powder is 50μm, the porous metal sintered plate has a stable powder blocking effect and low air resistance (resistance <50Pa when air flow velocity > 0.5m / s), which can achieve the technical effect of blocking powder without affecting air discharge.
[0025] The lifting mechanism 5 is capable of vertical extension and retraction, with its top lifting end extending into the interior of the powder box 2 and slidingly and sealingly connected to the inner surface of the powder box 2. Specifically, the lifting mechanism 5 includes a lifting hydraulic cylinder 51 and a lifting tray 52, which can be made of stainless steel. The lifting hydraulic cylinder 51 is vertically mounted on the frame 1. The lifting tray 52 is fixedly mounted on the free end of the piston rod of the lifting hydraulic cylinder 51, and the edge of the lifting tray 52 is slidably and sealingly connected to the inner surface of the powder box 4 through a sealing ring (that is, an annular groove is opened on the side circumference of the lifting tray 52, and a sealing ring is embedded in the annular groove). The free end of the piston rod of the lifting hydraulic cylinder 51 and the lifting tray 52 together constitute the top lifting end of the lifting mechanism 5. The pressure sensor 72 is installed at the small end outlet of the lifting hydraulic cylinder 51.
[0026] The powder pushing mechanism 2 is horizontally fixed on one side of the top discharge port of the powder box 4, and is used to push the powder pushed out of the powder box 4 by the lifting mechanism 5 into the powder collection mechanism. Specifically, the powder pushing mechanism 2 includes a powder pushing seat 21, a powder pushing hydraulic cylinder 22, and a powder pushing scraper 23. The powder pushing hydraulic cylinder 22 is horizontally fixed on the frame 1 through the powder pushing seat 21 (that is, the powder pushing hydraulic cylinder 22 is horizontally fixed on the upper surface of the second layer 12 through the powder pushing seat 21). The powder pushing scraper 23 is fixedly connected to the free end of the piston rod of the powder pushing hydraulic cylinder 22. The blade of the powder pushing scraper 23 is a right-angled trapezoid, and the inclined surface of the blade is at an 85° angle to the surface of the second layer. The 85° angled blade design of the powder pushing scraper 23 makes... When pushed horizontally, it can concentrate shear stress, effectively cut powder agglomerates, and produce a layering and peeling effect on the powder, thereby achieving pre-treatment and crushing of powder agglomerates. For example, in this embodiment, after the powder in the powder box 4 is pushed out by 1 mm each time, the powder pushing scraper 23 will cut the 1 mm of powder that has been pushed out and push the cut powder into the powder collecting funnel 62. If the diameter of the powder agglomerate is greater than 1 mm, the powder pushing scraper 23 can crush the powder agglomerate with a diameter greater than 1 mm, avoiding the powder agglomerate with a diameter greater than 1 mm from being pushed into the powder collecting funnel 62, which facilitates the final uniform crushing operation of the powder by the ball mill.
[0027] Furthermore, the side of the powder pushing seat 21 near the powder pushing scraper 23 has a groove-shaped structure. When the powder pushing hydraulic cylinder 22 is in the retracted state, the powder pushing scraper 23 is located in the groove-shaped structure.
[0028] The powder collection mechanism includes a powder collection box 61 and a powder collection funnel 62. The powder collection funnel 62 and the powder collection box 61 are fixedly installed on the frame 1 in an upper and lower configuration. The powder pushing mechanism 2 is used to push the powder pushed out of the powder box 4 by the lifting mechanism 5 into the powder collection funnel 62. The powder rolls down into the powder collection box 61 by its own gravity.
[0029] The second layer 12 has a first through hole 121 and a second through hole 122 equal in number to the powder box 4; the top port of the powder collecting funnel 62 is fixed in the first through hole 121; the top discharge port of the powder box 4 is fixed in the second through hole 122.
[0030] In some embodiments, three parallel and side-by-side baffles can be fixed on the upper surface of the second layer 12, forming a powder channel between each pair of adjacent baffles. The three baffles can form two powder channels, and the top outlets of the two powder boxes 4 are respectively connected to the two powder channels. The powder pushing scraper 23 pushes the powder in the powder channel.
[0031] The working principle of this embodiment is explained below using two types of powder as examples.
[0032] Before operation, the mass fractions of the two powders and the total mass M of the mixed powders are input into the PLC controller 71. The PLC controller 71 can then calculate the required mass of each of the two powders and, through the small chamber pressure P of the lifting hydraulic cylinder 51, use the formula... Calculate the powder mass in each of the two powder boxes 4, where S is the pressure-bearing annular area of the small cavity of the lifting hydraulic cylinder 51, F is the load force on the lifting hydraulic cylinder 51, g is the gravitational constant, M2 is the mass of powder box 4, and m is the powder mass in powder box 4. During operation, the clamping cylinder 31 extends, the aluminum sleeve 33 seals the top outlet of the powder box 4, and the lifting hydraulic cylinder 51 extends to compress the powder inside the powder box 4. Air at the top of the powder box 4 is discharged through the gap between the aluminum sleeve 33 and the frame 1. The electromagnetic sensor 73 inside the lifting hydraulic cylinder 51 provides the extension / retraction length of the cylinder. When the pressure in the small chamber of the lifting hydraulic cylinder 51 rises to a threshold, the lifting hydraulic cylinder 51 stops extending. The PLC controller 71 uses the extension / retraction length L of the lifting hydraulic cylinder 51, along with the formula... Calculate the volume of powder in each of the two powder bins 4, where V is the volume of powder inside the bin and S is the bottom area of the powder container. Then, use the formula... Calculate the density of each of the two powders, where ρ is the density of the powder in powder box 4, and then use the formula... Calculate the extension length L2 required by the lifting hydraulic cylinder 51 to obtain the required two powder masses, and then retract the clamping cylinder 31 to the idle state. The PLC controller 71 calculates the elongation length in 1mm segments. If the elongation is less than 1mm, it extends by the remaining value until the actual elongation required by the lifting hydraulic cylinder 51, as calculated by the PLC, is reached. For every 1mm increase in the lifting hydraulic cylinder 51, 1mm of powder is ejected from the top outlet of the powder box 4 (the mass of each 1mm of powder has been calculated by the PLC controller 71). After 1mm of powder is ejected from the powder box 4, the lifting hydraulic cylinder 51 is temporarily closed, and the powder pushing hydraulic cylinder 22 is activated to move the powder pushing scraper 23, which scrapes the powder into the powder collecting funnel 62, and then into the powder collection box 61. After the powder enters the powder collecting funnel 62, the PLC controller 71 controls the powder pushing hydraulic cylinder 22 to retract to its original position and restarts the lifting hydraulic cylinder 51. After 1mm of powder is ejected from the powder box 4, the lifting hydraulic cylinder 51 is temporarily closed again, and the powder pushing mechanism 2 continues to scrape the powder into the powder collecting funnel 62. This cycle continues until the powder is ejected from the powder box 4. Once the total height (or total mass) of the powder ejected by the lifting hydraulic cylinder 51 in the powder box 4 is equal to the actual required mass of the powder, the PLC controller 71 controls the lifting hydraulic cylinder 51 to close. Furthermore, taking two powder boxes 4 as an example, one powder box 4 and its corresponding powder pushing mechanism 2 and lifting mechanism 5 are defined as the first set of powder-collecting components, and the other powder box 4 and its corresponding powder pushing mechanism 2 and lifting mechanism 5 are defined as the second set of powder-collecting components. During the entire powder-collecting process, the PLC controller 71 can drive the first and second sets of powder-collecting components to collect powder in an intermittent manner (the first set of powder-collecting components collects powder, then the second set, and then the first set again, thus achieving intermittent powder collection). The PLC controller 71 can also drive the first and second sets of powder-collecting components to collect powder synchronously. Throughout the powder-collecting process, the blade of the powder pushing scraper 23 can cut and crush the ejected 1mm powder, preventing powder agglomeration and clumping.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A laser cladding powder mixing machine, characterized in that, It includes a frame, a powder pushing mechanism, a powder collecting mechanism, a detection and control mechanism, and at least two metering devices. The metering devices include a pressing mechanism, a powder box, and a lifting mechanism, which are fixedly mounted on the frame from top to bottom. Powder boxes are used to hold powder; The clamping mechanism is used to drive the metal porous sintered plate fixed at its bottom to rise and fall. The metal porous sintered plate has a blocked state that blocks the top outlet of the powder box and an idle state that is suspended above the top outlet of the powder box. When the metal porous sintered plate is in the blocked state, air is allowed to escape between its bottom surface and the top surface of the powder box, but powder is not allowed to escape. The lifting mechanism can extend and retract vertically, and its top lifting end extends into the interior of the powder box and slides and seals with the inner surface of the powder box. The powder pushing mechanism is horizontally fixed on one side of the powder box top discharge port, and is used to push the powder pushed out of the powder box by the lifting mechanism into the powder collection mechanism; The detection and control mechanism includes a PLC controller, and a pressure sensor and an electromagnetic sensor electrically connected to the PLC controller; the pressure sensor is installed on the lifting mechanism; the electromagnetic sensor is installed on the lifting mechanism and is used to detect the extension and retraction stroke of the lifting mechanism.
2. The laser cladding powder mixing machine according to claim 1, characterized in that, The rack has a first layer, a second layer, and a third layer arranged from bottom to top; The top of both the powder pushing mechanism and the powder box is fixed to the second layer; The clamping mechanism is fixed on the third layer; Both the lifting mechanism and the powder collection mechanism are located on the first floor.
3. The laser cladding powder mixing machine according to claim 2, characterized in that, The powder pushing mechanism includes a powder pushing seat, a powder pushing hydraulic cylinder, and a powder pushing scraper; The powder pushing hydraulic cylinder is horizontally fixed on the frame via a powder pushing seat; The powder-pushing scraper is fixedly connected to the free end of the piston rod of the powder-pushing hydraulic cylinder.
4. The laser cladding powder mixing machine according to claim 3, characterized in that, The blade of the powder-pushing scraper is a right-angled trapezoid, and the bevel of the blade forms an 85° angle with the surface of the second layer.
5. A laser cladding powder mixing machine according to claim 1, characterized in that, The clamping mechanism includes a clamping cylinder, a fixed base, and an aluminum sleeve; The clamping cylinder is vertically fixed on the frame and can extend and retract vertically downwards; The fixed seat is installed at the free end of the piston rod of the clamping cylinder; The aluminum sleeve is fitted onto the outside of the mounting base.
6. The laser cladding powder mixing machine according to claim 1, characterized in that, The lifting mechanism includes a lifting hydraulic cylinder and a lifting tray; The lifting hydraulic cylinder is vertically mounted on the frame; The lifting pallet is fixedly installed at the free end of the piston rod of the lifting hydraulic cylinder, and the edge of the lifting pallet is slidably and sealed to the inner surface of the powder box through a sealing ring; The pressure sensor is installed at the small end outlet of the lifting hydraulic cylinder.
7. A laser cladding powder mixing machine according to claim 2, characterized in that, The powder collection mechanism includes a powder collection box and a powder collection funnel; The powder collecting funnel and the powder collecting box are fixedly installed on the frame in an upper and lower configuration. The powder pushing mechanism is used to push the powder pushed out of the powder box by the lifting mechanism into the powder collecting funnel. The powder rolls down into the powder collecting box by its own gravity.
8. A laser cladding powder mixing machine according to claim 2, characterized in that, The second layer has a first through hole and a second through hole equal in number to the powder box; The top end of the powder collecting funnel is fixed in the first through hole; The top discharge port of the powder box is fixed in the second through hole.