High-entropy alloy powder feeding device for laser cladding

Abstract

The invention discloses a high-entropy alloy powder feeding device for laser cladding, and relates to the technical field of laser cladding, the high-entropy alloy powder feeding device for laser cladding comprises a supporting seat, a powder conveying mechanism is arranged on the supporting seat, the powder conveying mechanism comprises a supporting piece arranged on the supporting seat, a driving piece is arranged in the supporting piece, a gear piece is arranged in the driving piece, and a powder conveying pipe is arranged in the center of the gear piece; a plurality of sets of beating pieces are arranged on the outer side of the powder conveying pipe, the gear piece is matched with the movable piece, so that the outer wall of the powder conveying pipe is beaten, the powder conveying pipe is driven to vibrate, the powder conveying pipe is driven to vibrate, the powder conveying pipe is driven to vibrate, the powder conveying pipe is driven to vibrate, and the powder conveying pipe is driven to vibrate. According to the laser cladding device, caked powder can be vibrated, dispersed and dredged, the situation that the laser cladding effect is poor due to the fact that feeding is affected by blockage of the powder conveying pipe is reduced, meanwhile, multiple sets of powder are smashed and mixed through the mixing mechanism and the dispersing mechanism, and therefore the purpose of evenly mixing the powder is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cladding, and more specifically, to a high entropy alloy powder feeding device for laser cladding. Background Art

[0002] Laser cladding is a new surface modification technology. It adds cladding material to the surface of the substrate and uses a high-energy-density laser beam to melt and solidify it simultaneously with the substrate surface, forming a filler cladding layer that is metallurgically bonded to the substrate surface. Powder-feeding laser cladding uses a powder feeder to transport alloy powder through high-pressure inert gas to form a gas-powder flow with a certain rigidity that directly enters the cladding molten pool. The rigid gas-powder flow can be used in a synchronous lateral or coaxial powder feeding nozzle to achieve three-dimensional laser cladding.

[0003] At present, the common laser cladding powder feeder conveys powder through a feeding pipe. However, the powder in the feeding pipe is prone to agglomeration during the conveying process, which causes the feeding pipe to be blocked and unable to continuously feed, thus affecting the laser cladding. At the same time, after the blockage, it is necessary to stop working and clear the feeding pipe, which causes inconvenience in operation and affects efficiency. For this reason, we propose a high entropy alloy powder feeding device for laser cladding. Summary of the invention

[0004] In view of the shortcomings of the prior art, an object of the present invention is to provide a high entropy alloy powder feeding device for laser cladding.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: comprising a support seat, a powder conveying mechanism is arranged on the support seat, the powder conveying mechanism comprises a support member arranged on the support seat, a driving member is arranged in the support member, a gear member is arranged in the driving member, a powder conveying pipe is arranged at the center of the gear member, a movable member is arranged in the gear member, a knocking member is arranged on the outer side of the powder conveying pipe, the movable member and the knocking member cooperate to knock the outer wall of the powder conveying pipe, and also comprises a mixing mechanism, the mixing mechanism comprises a stirring member arranged in the gear member, an adjusting member is arranged in the powder conveying pipe, a movable member is arranged at the bottom of the gear member, and the The adjusting part and the movable part cooperate with each other to crush the powder, and also include a dispersing mechanism, the dispersing mechanism includes a sleeve arranged at the bottom end of the support seat, a fixing part is arranged in the sleeve, a ring part is arranged in the fixing part, a vibrating part is arranged at the bottom of the fixing part, a pressure roller part is arranged on the inner side of the ring part, a dispersing part is arranged in the fixing part, the dispersing part and the pressure roller part cooperate to compact the powder, and also include a powder spraying mechanism, the powder spraying mechanism includes a connecting part arranged at the bottom end of the fixing part, a powder spraying part is arranged at one end of the connecting part, a laser is arranged in the powder spraying part, and the powder spraying part and the laser cooperate to melt the powder.

[0006] Preferably, the support member includes an annular cylinder arranged on the upper end surface of the support seat, the middle of the annular cylinder is a hollow hole, three groups of support plates are arranged on the position of the annular cylinder at the top edge of the hollow hole, a coupling portion is integrally formed at the middle position of the three groups of support plates, the middle of the support seat is hollow, a mounting plate is arranged in the middle of the support seat, reinforcing plates are arranged on both sides of the upper end surface of the mounting plate, the reinforcing plates on both sides are arranged on the inner wall of the annular cylinder, the driving member includes a motor arranged in the middle position of the upper end surface of the coupling portion, a rotating rod is arranged at one end of the motor rotor shaft end passing through the coupling portion, and a gear 1 is arranged on the outer wall of the rotating rod.

[0007] Preferably, the gear member includes gear 2, gear 3 and gear 4 meshingly connected to the outside of gear 1, gear 2, gear 3 and gear 4 are arranged around the upper end surface of the support seat, the upper end surface of the support seat is provided with an annular strip, the inner wall of the annular strip is provided with a gear ring, the gear ring is meshed with gear 2, gear 3 and gear 4, and an opening is provided at the center of gear 2, gear 3 and gear 4 at the position of the mounting plate, and the powder conveying pipe passes through the opening.

[0008] Preferably, the movable part includes an annular sleeve arranged on the upper end surfaces of gear two, gear three and gear four, the mounting plate is located on the inner side of the annular sleeve and is provided with a movable sleeve and a mounting sleeve, the side wall of the mounting sleeve is connected to the support plate, the movable sleeve surrounds the powder conveying pipe, the side of the movable sleeve away from the powder conveying pipe is the extrusion surface, and the side of the movable sleeve attached to the powder conveying pipe is the knocking surface.

[0009] Preferably, the knocking member includes a slot arranged on the outer wall of the mounting sleeve, a rotating shaft is rotatably connected in the slot, an auxiliary part is arranged on the outer wall of the rotating shaft, a knocking part is integrally formed on the upper end surface of the auxiliary part, the top position of the knocking part abuts against the outer wall of the powder conveying pipe, a protrusion is formed in the middle position of the knocking part, the protrusion abuts against the outer wall of the movable sleeve, a raised part is integrally formed on the lower end surface of the auxiliary part, a compression spring is arranged on the inner side of the raised part, one end of the compression spring is arranged on the inner wall of the slot, a plurality of groups of reducing parts are integrally formed on the outer wall of the annular sleeve, and the plurality of groups of reducing parts correspondingly abut against the inner wall of the raised part.

[0010] Preferably, a conical cylinder is provided at the bottom end of the upper end surface of the mounting plate, and a mixing chamber is provided in the conical cylinder. One ends of the three groups of powder conveying pipes are correspondingly provided in the mixing chamber. The stirring member comprises a stirring rod provided at the bottom end of gear one, and the stirring rod is provided in the mixing chamber. Stirring blades are provided on the outer wall of the stirring rod. The adjusting member comprises a supporting block provided on the inner wall of the powder conveying pipe, and an obstruction piece is provided on the outer side of the supporting block. The auxiliary member comprises a spherical block provided on the supporting block, and a connecting rod is provided at the bottom end of the spherical block, and the connecting rod is correspondingly provided on the lower end surfaces of gear two, gear three and gear four.

[0011] Preferably, the fixing part includes connecting parts arranged on both sides of the inner wall of the sleeve, a fixing platform is arranged at the center position of the connecting parts on both sides, a fixing hole is arranged in the fixing platform, a vibration plate is arranged in the fixing hole, the annular part includes an annular ring arranged in the fixing hole, linkage rods are arranged on both sides of the upper end surface of the annular ring, one end of the linkage rods on both sides is arranged at the bottom end of the annular strip, the vibrating part includes an ultrasonic vibration plate arranged at the bottom end of the vibration plate, and the ultrasonic vibration plate is connected to an external power supply through an adapter joint.

[0012] Preferably, the pressure roller member includes a cover plate arranged on the inner wall of the annular ring, a dispersion chamber is formed between the cover plate and the vibration plate, a pressure plate is arranged on the inner wall of the cover plate, a through slot is arranged in the pressure plate, a movable roller is arranged in the through slot, and one end of the movable roller is arranged on the dispersion member. An air pump is arranged on the upper surface of the cover plate, the air outlet end of the air pump is arranged in the dispersion chamber, and one end of the conical cylinder is correspondingly arranged in the cover plate.

[0013] Preferably, the dispersion member includes a movable rod arranged on the upper end surface of the vibration plate, a surrounding groove is arranged on the outer wall of the movable rod, and the surrounding groove is divided into a high position part and a low position part; a limiting rod is arranged at one end of the movable roller, and the limiting rod is slidably connected in the surrounding groove; a conical platform is arranged on the upper end surface of the movable rod, a plurality of groups of inclined grooves are arranged on the outer wall of the conical platform, a plurality of groups of spikes are arranged in the inclined grooves, auxiliary rods are arranged on both sides of the bottom end of the conical platform, and the auxiliary rods on both sides are correspondingly arranged on the inner wall of the cover plate.

[0014] Preferably, the connecting part includes a plurality of groups of powder outlets arranged on the vibration plate, and a hose is arranged at the bottom end of the plurality of groups of powder outlets. The powder spraying part includes a nozzle shell, and the hose is correspondingly arranged on the nozzle shell. An inner shell is arranged inside the nozzle shell, and the inner shell divides the inside of the nozzle shell into a laser area and a powder spraying area. The laser is arranged in the laser area, and a plurality of groups of powder spraying pipes are arranged in the powder spraying area, and the powder spraying pipes are correspondingly connected to the hoses. A plurality of groups of powder spraying ports are arranged around the bottom of the nozzle shell, and the powder spraying ports correspond to the powder spraying pipes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, a striking piece is provided on the outside of the powder conveying pipe, and a gear part and a movable part cooperate to make multiple groups of striking pieces strike the outer wall of the powder conveying pipe, thereby driving the powder conveying pipe to vibrate, which can shake off and dredge the agglomerated powder, thereby reducing the situation where the powder conveying pipe is blocked and affects the feeding, resulting in poor laser cladding effect.

[0017] 2. In the present invention, by providing an adjusting part and an auxiliary part, the gear part rotates and drives the auxiliary part at the same time, and the auxiliary part and the adjusting part cooperate to break up the powder clumps in the powder conveying pipe, and the broken powder clumps fall into the stirring part. In this way, multiple groups of powders are broken and mixed by the stirring part, thereby achieving the purpose of uniform mixing of powders.

[0018] 3. In the present invention, the powder on the vibration plate is compacted by the movable roller in the pressing plate to ensure the uniformity of the powder. Due to the deflection force of the surrounding groove, the pressing plate is driven to move in the vertical direction on the high and low parts, so as to facilitate the compaction of the powder on the vibration plate. When the powder is discharged from the powder conveying pipe, it first hits the spikes on the conical table, thereby further breaking up the powder.

[0019] 4. In the present invention, the evenly mixed powder is transported to the powder spraying part through the connecting part, and then the powder spraying part sprays the metal powder on the surface of the workpiece. At the same time, through the use of a laser, local melting and rapid cooling are achieved, completing the laser cladding process and achieving the effect of excellent material structure and high precision.

[0020] 5. In the present invention, the ultrasonic vibration generated by the ultrasonic vibration plate can disperse the powder particles into mist. After the powder is dispersed by impact and ultrasonic vibration, the powder is evenly dispersed inside the fixed table. At this time, the high-speed airflow generated by the operation of the air pump is used to spray the powder from the connecting parts and the powder spraying parts to the surface of the workpiece, so that the powder is sprayed more evenly, effectively reducing the waste caused by powder supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0022] Figure 2 The present invention provides a schematic cross-sectional structure diagram of a high entropy alloy powder feeding device for laser cladding;

[0023] Figure 3 The present invention provides a schematic diagram of the internal structure of a high entropy alloy powder feeding device for laser cladding;

[0024] Figure 4 A schematic diagram of a gear component of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0025] Figure 5 The present invention provides a schematic diagram of the structure of a striking part of a high entropy alloy powder feeding device for laser cladding;

[0026] Figure 6 The present invention provides a schematic diagram of the structure of an adjusting member of a high entropy alloy powder feeding device for laser cladding;

[0027] Figure 7 The present invention provides a schematic diagram of the structure of movable parts of a high entropy alloy powder feeding device for laser cladding;

[0028] Figure 8 The present invention provides a schematic diagram of the structure of a high entropy alloy powder feeding device for laser cladding from a bottom view;

[0029] Fig. 9 A schematic diagram of a dispersion mechanism of a high entropy alloy powder feeding device for laser cladding proposed by the present invention;

[0030] Fig.10 The present invention provides a schematic structural diagram of a dispersion component of a high entropy alloy powder feeding device for laser cladding;

[0031] Fig.11 The present invention provides a schematic structural diagram of a pressure roller component of a high entropy alloy powder feeding device for laser cladding.

[0032] In the figure: 100, support seat; 101, powder conveying mechanism; 102, support member; 103, driving member; 104, gear member; 105, powder conveying pipe; 106, movable member; 107, knocking member; 200, mixing mechanism; 201, stirring member; 202, adjusting member; 203, auxiliary member; 300, dispersion mechanism; 301, sleeve; 302, fixing member; 303, annular member; 304, vibrating member; 305, roller member; 306, dispersion member; 400, powder spraying mechanism; 401, connecting member; 402, powder spraying member; 403, laser; 102 a, annular cylinder; 102b, hollow hole; 102c, support plate; 102d, joint; 102e, mounting plate; 102f, reinforcing plate; 103a, motor; 103b, rotating rod; 103c, gear one; 104a, gear two; 104b, gear three; 104c, gear four; 104d, annular strip; 104e, gear ring; 104f, opening; 106a, annular sleeve; 106b, movable sleeve; 106bc, mounting sleeve; 106d, extrusion surface; 106e, knocking surface; 107a, slot; 107b, rotating shaft; 107 c, auxiliary part; 107d, knocking part; 107e, protrusion; 107f, tilting part; 107g, compression spring; 107h, diameter reducing part; 201a, conical cylinder; 201b, mixing chamber; 201c, stirring rod; 201d, stirring blade; 202a, supporting block; 202b, blocking piece; 203a, spherical block; 203b, connecting rod; 302a, connecting part; 302b, fixing platform; 302c, fixing hole; 302d, vibration plate; 303a, annular ring; 303b, linkage rod; 304a, ultrasonic vibration plate; 305a, Cover plate; 305b, dispersion chamber; 305c, pressure plate; 305d, through groove; 305e, movable roller; 305f, air pump; 306a, movable rod; 306b, surrounding groove; 306c, high position; 306d, low position; 306e, limit rod; 306f, conical platform; 306g, inclined groove; 306h, spike; 306i, auxiliary rod; 401a, powder outlet; 401b, hose; 402a, nozzle shell; 402b, inner shell; 402c, laser area; 402d, powder spraying area; 402e, powder spraying tube; 402f, powder spraying port. DETAILED DESCRIPTION

[0033] Embodiment 1 A high entropy alloy powder feeding device for laser cladding proposed by the present invention is further described, comprising a support seat 100, a powder feeding mechanism 101 is provided on the support seat 100, the powder feeding mechanism 101 comprises a support member 102 arranged on the support seat 102, a driving member 103 is provided in the support member 102, a gear member 104 is provided in the driving member 103, a powder feeding pipe 105 is provided at the center of the gear member 104, a movable member 106 is provided in the gear member 104, a knocking member 107 is provided on the outer side of the powder feeding pipe 105, and the movable member 106 and the knocking member 107 cooperate to knock the outer wall of the powder feeding pipe 105;

[0034] refer to Figures 1 to 11 The present invention further improves the prior art by providing a striking member 107 on the outside of the powder conveying pipe 105, and by cooperating with the gear member 104 and the movable member 106, multiple groups of striking members 107 strike the outer wall of the powder conveying pipe 105, thereby driving the powder conveying pipe 105 to vibrate, which can disperse and dredge the agglomerated powder, thereby reducing the situation where the powder conveying pipe 105 is blocked and affects the feeding, resulting in poor laser cladding effect;

[0035] The mixing mechanism 200 includes a stirring member 201 disposed in the gear member 104, an adjusting member 202 is disposed in the powder conveying pipe 105, an auxiliary member 203 is disposed at the bottom of the gear member 104, and the adjusting member 202 and the auxiliary member 203 cooperate to break the powder, and also includes a dispersing mechanism 300, the dispersing mechanism 300 includes a sleeve 301 disposed at the bottom end of the support seat 100, a fixing member 302 is disposed in the sleeve 301, an annular member 303 is disposed in the fixing member 302, a vibrating member 304 is disposed at the bottom of the fixing member 302, a pressing roller member 305 is disposed inside the annular member 303, a dispersing member 306 is disposed in the fixing member 302, and the dispersing member 306 and the pressing roller member 305 cooperate to compact the powder;

[0036] Depend on Figure 1 It can be seen that the present invention further refines the structure of the powder conveying mechanism 101, and the bottom end of the inner wall of the powder conveying pipe 105 is provided with an adjusting member 202 and an auxiliary member 203. The gear member 104 rotates while driving the auxiliary member 203. The auxiliary member 203 and the adjusting member 202 cooperate to break up the powder mass in the powder conveying pipe 105. The broken powder mass falls into the stirring member 201. In this way, the stirring member 201 breaks up and mixes multiple groups of powders, thereby achieving the purpose of uniform mixing of the powders.

[0037] It also includes a powder spraying mechanism 400, which includes a connecting member 401 arranged at the bottom end of the fixing member 302, a powder spraying member 402 is arranged at one end of the connecting member 401, a laser 403 is arranged in the powder spraying member 402, and the powder spraying member 402 and the laser 403 cooperate to melt the powder.

[0038] The evenly mixed powder is transported to the powder spraying part 402 through the connecting part 401, and then the powder spraying part 402 sprays the metal powder on the surface of the workpiece. At the same time, the laser beam is focused on the surface of the workpiece through the use of the laser 403. When the energy density exceeds the melting point of the material, the material will be partially melted. When the laser beam leaves and stops irradiating, the liquid pool on the surface of the workpiece will instantly cool and solidify, thereby achieving local melting and rapid cooling, completing the laser cladding process and achieving the effect of excellent material structure and high precision.

[0039] Working principle: First, the powder is transported to the powder conveying pipe 105, and then the motor 103a is started through the external controller. The motor 103a drives the gear part 104. The gear part 104 and the movable part 106 cooperate to make multiple groups of knocking parts 107 knock on the outer wall of the powder conveying pipe 105, so as to drive the powder conveying pipe 105 to vibrate, which can shake off and dredge the agglomerated powder, thereby reducing the situation where the powder conveying pipe 105 is blocked and affects the feeding, resulting in poor laser cladding effect;

[0040] Then the powder is discharged from the bottom of the feed pipe, the adjusting part 202 and the auxiliary part 203 cooperate to break up the agglomerated powder, and then the stirring part 201 breaks up and mixes multiple groups of powders, so as to achieve the purpose of uniform mixing of the powders. Then the evenly mixed powder is compacted by the dispersion part 306 and the pressure roller part 305, and then transported to the powder spraying part 402 through the connecting part 401. The powder spraying part 402 sprays the metal powder on the surface of the workpiece. At the same time, through the use of the laser 403, the laser beam is focused on the surface of the workpiece, thus completing the laser cladding process.

[0041] Embodiment 2

[0042] The following technical features are added on the basis of the first embodiment:

[0043] The support member 102 includes an annular cylinder 102a fixedly connected to the upper end surface of the support seat 100, the middle of the annular cylinder 102a is a hollow hole 102b, the annular cylinder 102a is fixedly connected with three groups of support plates 102c at the top edge of the hollow hole 102b, and a joint portion 102d is formed integrally in the middle position of the three groups of support plates 102c, the middle of the support seat 100 is hollow, and a mounting plate 102e is provided in the middle of the support seat 100, and reinforcing plates 102f are fixedly connected to the two sides of the upper end surface of the mounting plate 102e, and the reinforcing plates 102f on both sides are fixedly connected to the inner wall of the annular cylinder 102a, and the driving member 103 includes a motor 103a installed in the middle position of the upper end surface of the joint portion 102d, and the end of the rotor shaft end of the motor 103a passing through the joint portion 102d is fixedly connected to a rotating rod 103b, and a gear 103c is keyed on the outer wall of the rotating rod 103b;

[0044] Depend on Figures 1 to 11It can be seen that a hollow annular cylinder 102a is fixed on the support base 100, and the support base 100 and a joint 102d are integrally formed in the middle of the annular cylinder 102a. A motor 103a is installed on the upper end surface of the joint 102d to ensure a compact structure. The output shaft end of the motor 103a is fixedly connected to a rotating rod 103b, and the rotating rod 103b serves as a driving shaft to drive the gear 103c to rotate, and three groups of L-shaped reinforcing plates 102f are fixed to the inner wall of the annular cylinder 102a, and the bottom end of the reinforcing plate 102f is fixedly connected to the mounting plate 102e, so that there is no direct connection between the mounting plate 102e and the support base 100.

[0045] The gear member 104 includes a second gear 104a, a third gear 104b and a fourth gear 104c meshedly connected to the outside of the first gear 103c, the second gear 104a, the third gear 104b and the fourth gear 104c are arranged around the upper end surface of the support seat 100, the upper end surface of the support seat 100 is rotatably connected with an annular bar 104d, the inner wall of the annular bar 104d is provided with a gear ring 104e, the gear ring 104e is meshed with the second gear 104a, the third gear 104b and the fourth gear 104c, the center of the second gear 104a, the third gear 104b and the fourth gear 104c is located at the position of the mounting plate 102e with an opening 104f, the powder conveying pipe 105 runs through the opening 104f, Figures 1 to 11 It can be seen that the gear member 104 is a planetary gear system, which rotates through the middle gear 103c, and the gear 103c is meshed with the gear 2 104a, the gear 3 104b and the gear 4 104c, thereby driving the gear 2 104a, the gear 3 104b and the gear 4 104c to rotate. At the same time, an annular bar 104d and a gear ring 104e are also provided on the outside, so as to drive the annular bar 104d to rotate;

[0046] The movable member 106 includes an annular sleeve 106a arranged on the upper end surfaces of the gear 2 104a, the gear 3 104b and the gear 4 104c, the mounting plate 102e is located on the inner side of the annular sleeve 106a and is provided with a movable sleeve 106b and a mounting sleeve 106bc, the side wall of the mounting sleeve 106bc is connected to the support plate 102c, the movable sleeve 106b and the mounting sleeve 106bc are fixed on the mounting plate 102e, the movable sleeve 106b surrounds the powder conveying pipe 105, the side of the movable sleeve 106b away from the powder conveying pipe 105 is the extrusion surface 106d, the side of the movable sleeve 106b attached to the powder conveying pipe 105 is the knocking surface 106e, and the knocking member 107 includes a groove 107a arranged on the outer wall of the mounting sleeve 106bc, and the groove 107 a is rotatably connected with a rotating shaft 107b, an auxiliary part 107c is arranged on the outer wall of the rotating shaft 107b, a knocking part 107d is integrally formed on the upper end surface of the auxiliary part 107c, the top position of the knocking part 107d is against the outer wall of the powder conveying pipe 105, a protrusion 107e is formed in the middle position of the knocking part 107d, the protrusion 107e is against the outer wall of the movable sleeve 106b, a tilting part 107f is integrally formed on the lower end surface of the auxiliary part 107c, a compression spring 107g is arranged inside the tilting part 107f, one end of the compression spring 107g is arranged on the inner wall of the slot 107a, and multiple groups of reducing parts 107h are integrally formed on the outer wall of the annular sleeve 106a, and the multiple groups of reducing parts 107h are correspondingly against the inner wall of the tilting part 107f;

[0047] Depend on Figures 1 to 11 It can be seen that the middle of the gear 2 104a, the gear 3 104b and the gear 4 104c is hollow, and the annular sleeve 106a is fixedly connected to the gear 2 104a, the gear 3 104b and the gear 4 104c, and a movable sleeve 106b is provided in the middle of the gear. The movable sleeve 106b is an elastic structure. When the knocking member 107 is forced to move, it knocks the movable sleeve 106b, so that the movable sleeve 106b vibrates and resists the outer wall of the powder conveying pipe 105, so that the powder mass in the powder conveying pipe 105 is dissipated, ensuring the stability during powder conveying;

[0048] The present invention further refines the structure of the movable member 106. The outer wall of the mounting sleeve 106bc is provided with three groups of slots 107a. The slots 107a are rotatably connected with a rotating shaft 107b through a bearing. The rotating shaft 107b is integrally formed with an auxiliary part 107c and a knocking part 107d. The auxiliary part 107c is connected to the inner wall of the slot 107a through a compression spring 107g. The compression spring 107g is a carbon spring with high strength and is convenient for daily work. Three groups of reducing portions 107h are integrally formed on the outer wall of the sleeve 106a, so the diameters of the reducing portions 107h are different. When the annular sleeve 106a rotates, the reducing portion 107h is driven to rotate, so that when the diameter gradually increases, the auxiliary portion 107c is squeezed. When the diameter gradually decreases, under the action of the compression spring 107g, the auxiliary portion 107c retracts, thereby driving the rotating shaft 107b in the auxiliary portion 107c to rotate in the slot 107a.

[0049] Working principle: It can be seen from Example 1 that when the motor 103a drives the gear 1 103c to rotate, the planetary gear structure drives the gear 2 104a, the gear 3 104b and the gear 4 104c to rotate, and at this time, the annular sleeve 106a on the gear 2 104a, the gear 3 104b and the gear 4 104c is driven to rotate, and the annular sleeve 106a drives the reducing portion 107h to rotate, so that when the diameter gradually increases, the effect of squeezing the auxiliary portion 107c is achieved. When the diameter gradually decreases, under the action of the compression spring 107g, the auxiliary portion 107c retracts, so as to drive the rotating shaft 107b in the auxiliary portion 107c to rotate in the slot 107a. Under the above movement, the knocking portion 107d and the protrusion 107e on the auxiliary portion 107c respectively knock the movable sleeve 106b and the powder conveying pipe 105, so that the powder conveying pipe 105 vibrates, thereby achieving the effect of powder dispersion.

[0050] Embodiment 3

[0051] The following technical features are added on the basis of the second embodiment:

[0052] The bottom end of the upper end surface of the mounting plate 102e is fixedly connected with a conical cylinder 201a, and the conical cylinder 201a contains a mixing chamber 201b. One end of the three sets of powder conveying pipes 105 is correspondingly arranged in the mixing chamber 201b. The stirring member 201 includes a stirring rod 201c fixedly connected to the bottom end of the gear 1 103c, and the stirring rod 201c is arranged in the mixing chamber 201b. A stirring blade 201d is fixedly connected to the outer wall of the stirring rod 201c. The adjusting member 202 includes a supporting block 202a fixedly connected to the inner wall of the powder conveying pipe 105, and a blocking piece 202b is fixedly connected to the outer side of the supporting block 202a. The auxiliary member 203 includes a spherical block 203a arranged on the supporting block 202a, and a connecting rod 203b is fixedly connected to the bottom end of the spherical block 203a, and the connecting rod 203b is correspondingly fixedly connected to the lower end surfaces of the gear 2 104a, the gear 3 104b and the gear 4 104c.

[0053] Depend on Figures 1 to 11 It can be seen that the bottom of the mounting plate 102e is fixedly connected with a conical cylinder 201a, the ejection end of the powder conveying pipe 105 is arranged in the conical cylinder 201a, and the stirring member 201 is correspondingly arranged in the conical cylinder 201a, so that the powder clumps ejected from the three groups of powder conveying pipes 105 are mixed, and the structure of the powder conveying pipe 105 is further refined in the present device, and a support block 202a and a blocking piece 202b are arranged inside the powder conveying pipe 105, so as to break up the powder clumps, and at the same time support The bottom of the block 202a is fixed with a connecting rod 203b through a spherical block 203a, and the connecting rod 203b is correspondingly fixed on the gear 2 104a, the gear 3 104b and the gear 4 104c. Therefore, when the gear 2 104a, the gear 3 104b and the gear 4 104c rotate, the spherical block 203a on the connecting rod 203b is driven to rotate in the supporting block 202a. When the connecting rod 203b rotates, the powder mass is further broken up;

[0054] The fixing member 302 includes connecting parts 302a arranged on both sides of the inner wall of the sleeve 301, and a fixing platform 302b is integrally formed at the center of the connecting parts 302a on both sides, and a fixing hole 302c is arranged in the fixing platform 302b, and a vibration plate 302d is detachably installed in the fixing hole 302c. The annular member 303 includes an annular ring 303a arranged in the fixing hole 302c, and linkage rods 303b are fixedly connected to both sides of the upper end surface of the annular ring 303a, and one end of the linkage rods 303b on both sides is fixedly connected to the bottom end of the annular strip 104d. The vibration member 304 includes an ultrasonic vibration plate 304a installed at the bottom end of the vibration plate 302d, and the ultrasonic vibration plate 304a is connected to an external power supply through an adapter.

[0055] Depend on Figures 1 to 11It can be seen that the inner wall of the sleeve 301 is integrally formed with a connecting portion 302a and a fixed platform 302b, and a vibration plate 302d is detachably connected to the fixed platform 302b, and an ultrasonic vibration plate 304a is fixedly connected to the bottom of the vibration plate 302d. Through the use of the ultrasonic vibration plate 304a, after the powder is inside the fixed platform 302b, the ultrasonic vibration plate 304a operates to generate high-frequency ultrasonic vibrations, and the ultrasonic vibrations generated by the ultrasonic vibration plate 304a can disperse the powder particles into mist. After the powder is impacted and dispersed and ultrasonically vibrated, the powder is evenly dispersed inside the fixed platform 302b. At this time, the high-speed airflow generated by the operation of the air pump 305f is used to spray the powder from the connecting piece 401 and the powder spraying piece 402 to the surface of the workpiece, so that the powder is sprayed more evenly, effectively reducing the waste caused by the powder supply.

[0056] Working principle: It can be seen from Example 2 that the planetary gear structure drives gear 2 104a, gear 3 104b and gear 4 104c to rotate, and the outer annular bar 104d also rotates. When the annular bar 104d rotates, the annular ring 303a at the bottom of the linkage rod 303b is driven to rotate. When gear 2 104a, gear 3 104b and gear 4 104c rotate, the spherical block 203a on the connecting rod 203b is driven to rotate in the support block 202a, and a blocking piece 202b is provided in the powder conveying pipe 105, so that the agglomerated powder passing through the powder conveying pipe 105 is broken up. After the powder in the three groups of powder conveying pipes 105 falls into the mixing chamber 201b, the different powders are further broken up and mixed by the stirring rod 201c and the stirring blade 201d on the gear 1 103c, so as to achieve a uniform mixing effect.

[0057] Embodiment 4

[0058] The following technical features are added on the basis of the third embodiment:

[0059] The pressure roller member 305 includes a cover plate 305a fixedly connected to the inner wall of the annular ring 303a, a dispersion chamber 305b is formed between the cover plate 305a and the vibration plate 302d, a pressure plate 305c is slidably connected to the inner wall of the cover plate 305a, a through groove 305d is provided in the pressure plate 305c, a movable roller 305e is rotatably connected in the through groove 305d, one end of the movable roller 305e is arranged on the dispersion member 306, an air pump 305f is fixedly connected to the upper end surface of the cover plate 305a, an air outlet end of the air pump 305f is arranged in the dispersion chamber 305b, and one end of the conical cylinder 201a is correspondingly arranged in the cover plate 305a;

[0060] Depend on Figures 1 to 11It can be seen that the annular ring 303a rotates in the fixed platform 302b, and the cover plate 305a is fixedly connected inside the annular ring 303a. The cover plate 305a is buckled in the fixed hole 302c. When the annular ring 303a rotates, the cover plate 305a rotates synchronously with the annular ring 303a, thereby driving the pressing plate 305c to rotate, so that the movable roller 305e on the inner wall of the pressing plate 305c compacts the powder on the vibration plate 302d to ensure the uniformity of the powder. At the same time, an air pump 305f is installed on the cover plate 305a, and the powder is transported by the high-speed airflow generated by the operation of the air pump 305f.

[0061] The dispersion member 306 includes a movable rod 306a fixedly connected to the upper end surface of the vibration plate 302d, a surrounding groove 306b is provided on the outer wall of the movable rod 306a, and the surrounding groove 306b is divided into a high portion 306c and a low portion 306d, a limit rod 306e is integrally formed at one end of the movable roller 305e, and the limit rod 306e is slidably connected in the surrounding groove 306b, a conical platform 306f is provided on the upper end surface of the movable rod 306a, and a plurality of groups of inclined grooves 306g are provided on the outer wall of the conical platform 306f, and a plurality of groups of spikes 306h are integrally formed in the inclined grooves 306g, and auxiliary rods 306i are fixedly connected to both sides of the bottom end of the conical platform 306f, and the auxiliary rods 306i on both sides are correspondingly arranged on the inner wall of the cover plate 305a;

[0062] Depend on Figures 1 to 11 It can be seen that a movable rod 306a is fixedly connected to the middle position of the upper end surface of the vibration plate 302d, and a surrounding groove 306b is provided on the outer wall of the movable rod 306a, and the surrounding groove 306b is divided into a high portion 306c and a low portion 306d. In this way, when the pressing plate 305c rotates with the cover plate 305a, since the limiting rod 306e on the pressing plate 305c is slidably connected in the surrounding groove 306b, and the movable rod 306a is fixed, due to the deflection force of the surrounding groove 306b, the pressing plate 305c is driven to move in the vertical direction on the high portion 306c and the low portion 306d when it rotates, thereby facilitating the compaction of the powder on the vibration plate 302d.

[0063] Working principle: As can be seen from Example 3, when the annular strip 104d rotates, the annular ring 303a at the bottom of the linkage rod 303b is driven to rotate, and the cover plate 305a rotates synchronously with the annular ring 303a, thereby driving its pressing plate 305c to rotate, so that the movable roller 305e on the inner wall of the pressing plate 305c compacts the powder on the vibration plate 302d to ensure the uniformity of the powder. Since one side of the pressing plate 305c moves vertically on the inner wall of the cover plate 305a, and the pressing plate 305c A limiting rod 306e is fixedly connected to the other side of 5c, and the limiting rod 306e is slidably connected in the surrounding groove 306b. Due to the deflection force of the surrounding groove 306b, the pressing plate 305c is driven to move on the high part 306c and the low part 306d in the vertical direction, so as to facilitate the compaction of the powder on the vibration plate 302d, and when the powder is discharged from the powder conveying pipe 105, it first hits the spike 306h on the conical platform 306f, thereby further breaking up the powder.

[0064] Embodiment 5

[0065] The following technical features are added on the basis of the fourth embodiment:

[0066] The connecting member 401 includes a plurality of powder outlets 401a arranged on the vibration plate 302d, and the bottom ends of the plurality of powder outlets 401a are connected to a hose 401b, and the powder spraying member 402 includes a nozzle shell 402a, and the hose 401b is correspondingly arranged on the nozzle shell 402a, and an inner shell 402b is arranged inside the nozzle shell 402a, and the inner shell 402b divides the inside of the nozzle shell 402a into a laser area 402c and a powder spraying area 402d, and the laser 403 is arranged in the laser area 402c, and a plurality of powder spraying tubes 402e are seamlessly welded in the powder spraying area 402d, and the powder spraying tubes 402e are correspondingly connected to the hose 401b, and a plurality of powder spraying ports 402f are arranged around the bottom of the nozzle shell, and the powder spraying ports 402f correspond to the powder spraying tubes 402e;

[0067] The evenly mixed powder is transported to the powder spraying part 402 through the connecting part 401, and then the powder spraying part 402 sprays the metal powder on the surface of the workpiece. At the same time, the laser beam is focused on the surface of the workpiece by using the laser 403. When the energy density exceeds the melting point of the material, the material will be partially melted.

[0068] Working principle: It can be seen from Example 4 that after the powder is evenly mixed, it is compacted by the pressing plate 305c and discharged into the hose 401b from the powder outlet 401a. Then the hose 401b transports the powder to the powder spraying area 402d. Through the use of the laser 403, the laser beam irradiates the powder falling on the surface of the workpiece. When its energy density exceeds the melting point of the material, the material will be partially melted. When the laser beam leaves and stops irradiating, the liquid pool on the surface of the workpiece will instantly cool and solidify, thereby achieving local melting and rapid cooling, and completing the laser cladding process.

[0069] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high entropy alloy powder feeding device for laser cladding, characterized in that: The invention comprises a support seat (100), wherein a powder conveying mechanism (101) is arranged on the support seat (100), wherein the powder conveying mechanism (101) comprises a support member (102) arranged on the support seat (100), wherein a driving member (103) is arranged inside the support member (102), wherein a gear member (104) is arranged inside the driving member (103), wherein a powder conveying pipe (105) is arranged at the center position of the gear member (104), wherein a movable member (106) is arranged inside the gear member (104), wherein a knocking member (107) is arranged outside the powder conveying pipe (105), wherein the movable member (106) and the knocking member (107) cooperate to knock the outer wall of the powder conveying pipe (105); The mixing mechanism (200) further comprises a mixing member (201) arranged in the gear member (104), an adjusting member (202) is arranged in the powder conveying pipe (105), an auxiliary member (203) is arranged at the bottom of the gear member (104), and the adjusting member (202) and the auxiliary member (203) cooperate to break up the powder; The device also comprises a dispersion mechanism (300), wherein the dispersion mechanism (300) comprises a sleeve (301) arranged at the bottom end of the support seat (100), wherein a fixing member (302) is arranged inside the sleeve (301), wherein an annular member (303) is arranged inside the fixing member (302), wherein a vibrating member (304) is arranged at the bottom of the fixing member (302), wherein a pressure roller member (305) is arranged inside the annular member (303), wherein a dispersion member (306) is arranged inside the fixing member (302), wherein the dispersion member (306) and the pressure roller member (305) cooperate to compact the powder; The invention also comprises a powder spraying mechanism (400), wherein the powder spraying mechanism (400) comprises a connecting member (401) arranged at the bottom end of the fixing member (302), a powder spraying member (402) being arranged at one end of the connecting member (401), a laser (403) being arranged inside the powder spraying member (402), and the powder spraying member (402) and the laser (403) cooperate to perform cladding on the powder material.

2. A high entropy alloy powder feeding device for laser cladding according to claim 1, characterized in that: The support member (102) comprises an annular cylinder (102a) arranged on the upper end surface of the support seat (100), the center of the annular cylinder (102a) is a hollow hole (102b), the annular cylinder (102a) is provided with three groups of support plates (102c) at the top edge of the hollow hole (102b), the middle positions of the three groups of support plates (102c) are integrally formed with a joint portion (102d), the center of the support seat (100) is hollow, and the center of the support seat (100) is provided with a mounting plate ( 102e), reinforcing plates (102f) are arranged on both sides of the upper end surface of the mounting plate (102e), and the reinforcing plates (102f) on both sides are arranged on the inner wall of the annular cylinder (102a), and the driving member (103) comprises a motor (103a) arranged in the middle position of the upper end surface of the coupling portion (102d), and a rotating rod (103b) is arranged at one end of the rotor shaft end of the motor (103a) passing through the coupling portion (102d), and a gear 1 (103c) is arranged on the outer wall of the rotating rod (103b).

3. A high entropy alloy powder feeding device for laser cladding according to claim 2, characterized in that: The gear member (104) comprises a second gear (104a), a third gear (104b) and a fourth gear (104c) meshedly connected to the outside of the first gear (103c); the second gear (104a), the third gear (104b) and the fourth gear (104c) are arranged on the upper end surface of the support seat (100) in a surrounding manner; the upper end surface of the support seat (100) is provided with an annular strip (104d); the inner wall of the annular strip (104d) is provided with a gear ring (104e); the gear ring (104e) is meshed with the second gear (104a), the third gear (104b) and the fourth gear (104c); an opening (104f) is provided at the center of the second gear (104a), the third gear (104b) and the fourth gear (104c) at a position of the mounting plate (102e); and the powder conveying pipe (105) passes through the opening (104f).

4. A high entropy alloy powder feeding device for laser cladding according to claim 3, characterized in that: The movable part (106) comprises an annular sleeve (106a) arranged on the upper end surfaces of gear 2 (104a), gear 3 (104b) and gear 4 (104c); the mounting plate (102e) is located on the inner side of the annular sleeve (106a) and is provided with a movable sleeve (106b) and a mounting sleeve (106bc); the side wall of the mounting sleeve (106bc) is connected to the support plate (102c); the movable sleeve (106b) surrounds the powder conveying pipe (105); the side of the movable sleeve (106b) away from the powder conveying pipe (105) is an extrusion surface (106d); and the side of the movable sleeve (106b) attached to the powder conveying pipe (105) is a knocking surface (106e).

5. A high entropy alloy powder feeding device for laser cladding according to claim 4, characterized in that: The knocking member (107) comprises a slot (107a) arranged on the outer wall of the mounting sleeve (106bc), a rotating shaft (107b) is rotatably connected in the slot (107a), an auxiliary part (107c) is arranged on the outer wall of the rotating shaft (107b), a knocking part (107d) is integrally formed on the upper end surface of the auxiliary part (107c), the top position of the knocking part (107d) is against the outer wall of the powder conveying pipe (105), and a protrusion (107e) is formed in the middle position of the knocking part (107d) The protruding portion (107e) is pressed against the outer wall of the movable sleeve (106b); a tilting portion (107f) is integrally formed on the lower end surface of the auxiliary portion (107c); a compression spring (107g) is arranged on the inner side of the tilting portion (107f); one end of the compression spring (107g) is arranged on the inner wall of the slot (107a); a plurality of groups of reducing portions (107h) are integrally formed on the outer wall of the annular sleeve (106a); the plurality of groups of reducing portions (107h) are correspondingly pressed against the inner wall of the tilting portion (107f).

6. The high entropy alloy powder feeding device for laser cladding according to claim 5, characterized in that: A conical cylinder (201a) is arranged at the bottom end of the upper end surface of the mounting plate (102e), and a mixing chamber (201b) is arranged in the conical cylinder (201a). One end of the three groups of powder conveying pipes (105) is arranged in the mixing chamber (201b) correspondingly. The stirring member (201) comprises a stirring rod (201c) arranged at the bottom end of the gear 1 (103c), and the stirring rod (201c) is arranged in the mixing chamber (201b). A stirring blade (201d) is arranged on the outer wall of the stirring rod (201c). The regulating member (202) comprises a supporting block (202a) arranged on the inner wall of the powder conveying pipe (105), and a blocking piece (202b) is arranged on the outer side of the supporting block (202a); the auxiliary member (203) comprises a spherical block (203a) arranged on the supporting block (202a), and a connecting rod (203b) is arranged at the bottom end of the spherical block (203a), and the connecting rod (203b) is correspondingly arranged on the lower end surfaces of gear two (104a), gear three (104b) and gear four (104c).

7. A high entropy alloy powder feeding device for laser cladding according to claim 6, characterized in that: The fixing member (302) comprises connecting parts (302a) arranged on both sides of the inner wall of the sleeve (301), and a fixing platform (302b) is arranged at the center position of the connecting parts (302a) on both sides, and a fixing hole (302c) is arranged in the fixing platform (302b), and a vibration plate (302d) is arranged in the fixing hole (302c). The annular member (303) comprises an annular ring (303a) arranged in the fixing hole (302c), and linkage rods (303b) are arranged on both sides of the upper end surface of the annular ring (303a), and one end of the linkage rods (303b) on both sides is arranged at the bottom end of the annular strip (104d). The vibration member (304) comprises an ultrasonic vibration plate (304a) arranged at the bottom end of the vibration plate (302d), and the ultrasonic vibration plate (304a) is connected to an external power supply through an adapter.

8. The high entropy alloy powder feeding device for laser cladding according to claim 7, characterized in that: The pressure roller component (305) comprises a cover plate (305a) arranged on the inner wall of the annular ring (303a); a dispersion chamber (305b) is provided between the cover plate (305a) and the vibration plate (302d); a pressure plate (305c) is provided on the inner wall of the cover plate (305a); a through groove (305d) is provided in the pressure plate (305c); a movable roller (305e) is provided in the through groove (305d); one end of the movable roller (305e) is arranged on the dispersion component (306); an air pump (305f) is provided on the upper end surface of the cover plate (305a); an air outlet end of the air pump (305f) is arranged in the dispersion chamber (305b); and one end of the conical cylinder (201a) is correspondingly arranged in the cover plate (305a).

9. A high entropy alloy powder feeding device for laser cladding according to claim 8, characterized in that: The dispersion member (306) comprises a movable rod (306a) arranged on the upper end surface of the vibration plate (302d), a surrounding groove (306b) is arranged on the outer wall of the movable rod (306a), and the surrounding groove (306b) is divided into a high-position part (306c) and a low-position part (306d), a limiting rod (306e) is arranged at one end of the movable roller (305e), and the limiting rod (306e) is slidably connected in the surrounding groove (306b), a conical platform (306f) is arranged on the upper end surface of the movable rod (306a), a plurality of groups of inclined grooves (306g) are arranged on the outer wall of the conical platform (306f), and a plurality of groups of spikes (306h) are arranged in the inclined grooves (306g), and auxiliary rods (306i) are arranged on both sides of the bottom end of the conical platform (306f), and the auxiliary rods (306i) on both sides are correspondingly arranged on the inner wall of the cover plate (305a).

10. A high entropy alloy powder feeding device for laser cladding according to claim 9, characterized in that: The connecting member (401) comprises a plurality of powder outlets (401a) arranged on the vibration plate (302d), and a hose (401b) is arranged at the bottom of the plurality of powder outlets (401a). The powder spraying member (402) comprises a nozzle shell (402a), and the hose (401b) is correspondingly arranged on the nozzle shell (402a). An inner shell (402b) is arranged inside the nozzle shell (402a), and the inner shell (402b) connects the nozzle shell (402a) to the inner shell (402b). 2a) is divided into a laser area (402c) and a powder spraying area (402d), the laser (403) is arranged in the laser area (402c), a plurality of powder spraying tubes (402e) are arranged in the powder spraying area (402d), the powder spraying tubes (402e) are connected to the hose (401b) correspondingly, and a plurality of powder spraying ports (402f) are arranged around the bottom of the nozzle shell, the powder spraying ports (402f) correspond to the powder spraying tubes (402e).

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