Powder feeding device of laser cladding equipment and laser cladding equipment

Abstract

The utility model relates to the technical field of laser cladding equipment, in particular to a powder feeding device of laser cladding equipment and the laser cladding equipment, which comprises a reciprocating screw rod, the reciprocating screw rod is in threaded connection with a movable seat, the movable seat is rotatably connected with a first gear and a gear ring, the first gear is in meshed connection with the gear ring, and the first gear is in meshed connection with the gear ring. A fixed frame is fixedly connected to the gear ring, a sliding block is connected to the interior of the fixed frame through a first spring, a carrier gas type powder feeder is arranged on the fixed frame, and the carrier gas type powder feeder is connected with the sliding block through a powder feeding pipe; a rotating assembly is arranged on the fixing frame and comprises a rotating shaft rotationally installed on the fixing frame. According to the powder feeding device, the position of the powder feeding pipe can be conveniently, flexibly and accurately adjusted, so that powder can be conveniently conveyed to a laser acting area, and the powder feeding device of the laser cladding equipment can be conveniently used.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding equipment technology, and in particular to a powder feeding device and laser cladding equipment for laser cladding. Background Technology

[0002] With the continuous development of society and the advancement of technology, the technology related to laser cladding equipment is also constantly improving. Laser cladding equipment typically consists of a laser, a cooling system, a powder feeding device, a processing worktable, and a control system. The powder feeding device is an important sub-component, working in conjunction with the laser and other components. The laser generates a laser beam, and the powder feeding device supplies powder. The laser cladding equipment melts the surface of the substrate and the cladding material through the laser beam, forming a metallurgically bonded coating to improve the surface properties of the substrate. The powder feeding device is responsible for accurately and stably delivering the cladding powder to the laser action area, allowing the powder to fuse with the substrate under the action of laser energy. It is an indispensable link in realizing the laser cladding process.

[0003] Most of the powder feeding devices used in laser cladding equipment are equipped with gas-type powder feeders or drum-type powder feeders. These devices can transport powder to the laser action area through the powder feeding pipe. However, the powder feeding device of the laser cladding equipment is not convenient for flexibly and precisely adjusting the position of the powder feeding pipe, which makes it difficult to transport powder to the laser action area and is not conducive to the use of the powder feeding device of the laser cladding equipment. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: the powder feeding device of the laser cladding equipment is not convenient to adjust the position of the powder feeding tube in a flexible and precise manner, which makes it difficult to transport the powder to the laser action area and is not conducive to the use of the powder feeding device of the laser cladding equipment. Therefore, this utility model proposes a powder feeding device and laser cladding equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A powder feeding device for laser cladding equipment includes a reciprocating screw, a movable seat threadedly connected to the reciprocating screw, a first gear and a gear ring rotatably connected to the movable seat, the first gear and the gear ring meshing, a fixed frame fixedly connected to the gear ring, a slider connected to the fixed frame via a first spring, and a gas-carrying powder feeder provided on the fixed frame, the gas-carrying powder feeder being connected to the slider via a powder feeding pipe;

[0007] The fixed frame is provided with a rotating component, which includes a rotating shaft rotatably mounted on the fixed frame. A first servo motor is installed on both the fixed frame and the movable seat. The rotating shaft is connected to the slider through a first pull rope. A rotating wheel is fixedly connected to the rotating shaft. The rotating wheel has multiple slots. A limit component is provided on the fixed frame.

[0008] Preferably, the limiting component includes an electric push rod fixedly installed on one side surface of the fixing frame, the driving end of the electric push rod is fixedly connected to a limiting rod, and one end of the limiting rod is engaged with the corresponding slot.

[0009] Preferably, a limiting plate is slidably connected to the fixing frame, an electromagnet is fixedly connected to the lower surface of the limiting plate, an iron sheet is fixedly provided on the upper surface of the slider, and the limiting rod is connected to the limiting plate through a second pull rope.

[0010] Preferably, the fixing frame has limit grooves on both sides, and each limit groove has a cross block connected to it by a second spring. The two cross blocks are fixedly connected to the two sides of the limiting plate, respectively.

[0011] A laser cladding device includes a processing platform, a cladding nozzle, and a powder feeding device for the laser cladding device. The reciprocating lead screw is rotatably connected to the processing platform, the movable seat is connected to the processing platform via a telescopic rod, and the cladding nozzle is fixedly connected to the slider.

[0012] Preferably, a second gear and a third gear are rotatably connected inside the processing platform, the second gear and the third gear are meshed together, the third gear is fixedly connected to the reciprocating lead screw, and a second servo motor is fixedly connected to the processing platform.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The movable seat moves along the reciprocating lead screw, which can adjust the vertical position of the movable seat and the powder feeding tube on the fixed frame. The second and third gears are both high-precision gears. High-precision gears have extremely small angle transmission errors during transmission, which allows for more precise adjustment of the powder feeding tube's position. During the rotation of the gear ring, the powder feeding tube on the fixed frame can be rotated together, thereby adjusting the angle position of the powder feeding tube within the horizontal surface. When the rotating shaft rotates in both directions, the first pull rope can be wound or unwound, and the distance between the powder feeding tube opening and the reciprocating lead screw can be adjusted, which can further adjust the position of the powder feeding tube. This allows for convenient, flexible, and more precise adjustment of the powder feeding tube's position, thus facilitating the delivery of powder to the laser action area and benefiting the use of the powder feeding device in laser cladding equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the powder feeding device and the front structure of the laser cladding equipment proposed in this utility model.

[0016] Figure 2 This utility model provides a powder feeding device for a laser cladding equipment and a top view of a partial internal structure of the laser cladding equipment.

[0017] Figure 3 This is a front structural diagram of the fixing frame and reciprocating lead screw in this utility model;

[0018] Figure 4 This is a partial internal structure diagram of the fixing frame in this utility model;

[0019] Figure 5 for Figure 4 A magnified view of part A in the image.

[0020] In the diagram: 1. Processing platform, 2. Telescopic rod, 3. First gear, 4. Reciprocating screw, 5. Moving seat, 6. Air-carrying powder feeder, 7. Gear ring, 8. Fixing frame, 9. Powder feeding pipe, 10. Cladding nozzle, 11. Slider, 12. Third gear, 13. Second gear, 14. Limiting plate, 15. First pull rope, 16. First spring, 17. Cross block, 18. Second pull rope, 19. Electric push rod, 20. Limiting rod, 21. Rotating shaft, 22. Rotating wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-5A powder feeding device for laser cladding equipment includes a reciprocating screw 4, a movable seat 5 threadedly connected to the reciprocating screw 4, a first gear 3 and a gear ring 7 rotatably connected to the movable seat 5, the first gear 3 and the gear ring 7 meshing together, a fixed frame 8 fixedly connected to the gear ring 7, a slider 11 connected to the fixed frame 8 via a first spring 16, a gas-carrying powder feeder 6 provided on the fixed frame 8 (the gas-carrying powder feeder 6 is prior art, and its working principle is not described in detail), the gas-carrying powder feeder 6 is connected to the slider 11 via a powder feeding pipe 9, a rotating assembly provided on the fixed frame 8, the rotating assembly including a rotating shaft 21 rotatably mounted on the fixed frame 8, a first servo motor mounted on both the fixed frame 8 and the movable seat 5, the rotating shaft 21 being connected to the slider 11 via a first pull rope 15, a rotating wheel 22 fixedly connected to the rotating shaft 21, the rotating wheel 22 having multiple slots, and a limit component provided on the fixed frame 8.

[0024] The limiting assembly includes an electric push rod 19 fixedly installed on one side surface of the fixed frame 8. The driving end of the electric push rod 19 is fixedly connected to a limiting rod 20. One end of the limiting rod 20 is engaged with a corresponding slot. A limiting plate 14 is slidably connected on the fixed frame 8. An electromagnet is fixedly connected to the lower surface of the limiting plate 14. An iron sheet is fixedly installed on the upper surface of the slider 11. The limiting rod 20 is connected to the limiting plate 14 through a second pull rope 18. Limiting grooves are opened on both sides of the fixed frame 8. A cross block 17 is connected to each limiting groove through a second spring. The two cross blocks 17 are fixedly connected to the two sides of the limiting plate 14 respectively.

[0025] When the electric push rod 19 is energized, it drives one end of the limiting rod 20 to engage in the corresponding slot on the rotating wheel 22, thus preventing the rotating wheel 22 and the rotating shaft 21 from rotating. During the movement of the limiting rod 20, since the two ends of the inelastic second pull rope 18 are fixedly connected to the lower surface of the limiting rod 20 and the limiting plate 14 respectively, the limiting plate 14 will move vertically downward under the transmission action of the second pull rope 18. The two cross blocks 17 slide in the corresponding limiting grooves respectively. Since the two ends of each second spring are fixedly connected to the upper inner wall of the corresponding limiting groove and the cross block 17 respectively, the second spring deforms. After the limiting plate 14 moves down, the electromagnet will stick to the iron plate. At this time, the electromagnet is energized. Under the attraction, the relative movement of the slider 11 and the fixing frame 8 can be effectively prevented. The cross block 17 can restrict the movement trajectory of the limiting plate 14, so that the limiting plate 14 can only move vertically.

[0026] A laser cladding device includes a processing platform 1, a cladding nozzle 10, a laser, a control system, a cooling system, a protective gas system, and a powder feeding device. The laser, control system, cooling system, and protective gas system are existing technologies and are not shown in the figures; their working principles are not described in detail. The workpiece can be placed on the processing platform 1 for fixing and clamping before cladding. A reciprocating lead screw 4 is rotatably connected to the processing platform 1. A movable seat 5 is connected to the processing platform 1 via a telescopic rod 2. The cladding nozzle 10 and a slider 11 are fixedly connected. The second gear 13 and the third gear 12 are rotatably connected inside the platform 1. The second gear 13 and the third gear 12 are meshed together. The third gear 12 is fixedly connected to the reciprocating screw 4. The second servo motor is fixedly connected to the processing platform 1. When the second servo motor is powered on, the second gear 13 will rotate and drive the third gear 12 to rotate together. The reciprocating screw 4 will rotate relative to the processing platform 1. The moving seat 5 moves along the reciprocating screw 4 at the same time. The telescopic rod 2 will extend and retract, thereby adjusting the vertical position of the moving seat 5 and the powder feeding pipe 9 on the fixed frame 8.

[0027] In this invention, when in use, the second servo motor is powered on. Since the second gear 13 is fixedly connected to the drive end of the second servo motor, the second gear 13 will rotate under the drive of the second servo motor, and drive the third gear 12 to rotate together. The reciprocating screw 4 will rotate relative to the processing platform 1. The moving seat 5 moves along the reciprocating screw 4 at the same time. Since the two ends of the telescopic rod 2 are fixedly connected to the moving seat 5 and the processing platform 1 respectively, the telescopic rod 2 will undergo telescopic deformation, thereby adjusting the vertical position of the powder feeding pipe 9 on the moving seat 5 and the fixed frame 8. The first gear 2, the gear ring 7, the second gear 13 and the third gear 12 are all high-precision gears. When high-precision gears are in transmission, the angle transmission error is extremely small, so as to adjust the position of the powder feeding pipe 9 more accurately.

[0028] The drive ends of the two first servo motors are fixedly connected to the first gear 3 and the rotating shaft 21, respectively. When the first servo motor drives the first gear 3 to rotate, the first gear 3 will mesh with the gear ring 7. During the rotation of the gear ring 7, the powder feeding pipe 9 on the fixed frame 8 will rotate together, thereby adjusting the angular position of the powder feeding pipe 9 on the horizontal surface. Since one end of the inelastic first pull rope 15 is fixedly connected to the slider 11, and the other end is wrapped around the rotating shaft 21 and cannot be detached from the rotating shaft 21, when the first servo motor drives the rotating shaft 21 to rotate... The rotating shaft 21 can be used to wind or unwind the first pull rope 15. The I-shaped slider 11 will move along the fixed frame 8. Since the two ends of the first spring 16 are fixedly connected to the fixed frame 8 and the slider 11 respectively, the first spring 16 deforms, thereby adjusting the distance between the opening of the powder feeding pipe 9 and the reciprocating screw 4, which can further adjust the position of the powder feeding pipe 9. This allows for convenient, flexible and relatively precise adjustment of the position of the powder feeding pipe 9, which facilitates the delivery of powder to the laser action area and is beneficial to the use of the powder feeding device of the laser cladding equipment.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A powder feeding device of a laser cladding apparatus comprising a reciprocating wire rod (4), characterized in that, The reciprocating screw rod (4) is threadedly connected with a moving seat (5), the moving seat (5) is rotatably connected with a first gear (3) and a gear ring (7), the first gear (3) and the gear ring (7) are meshedly connected, the gear ring (7) is fixedly connected with a fixed frame (8), the fixed frame (8) is connected with a sliding block (11) through a first spring (16), the fixed frame (8) is provided with a carrier gas type powder feeder (6), the carrier gas type powder feeder (6) is connected with the sliding block (11) through a powder feeding pipe (9); The fixed frame (8) is provided with a rotating assembly, the rotating assembly comprises a rotating shaft (21) rotatably installed on the fixed frame (8), the fixed frame (8) and the moving seat (5) are both provided with a first servo motor, the rotating shaft (21) is connected with the sliding block (11) through a first pull rope (15), the rotating shaft (21) is fixedly connected with a rotating wheel (22), a plurality of slots are formed in the rotating wheel (22), and a limiting assembly is arranged on the fixed frame (8).

2. The powder feeding device of a laser cladding apparatus according to claim 1, wherein The limiting assembly comprises an electric push rod (19) fixedly installed on one side surface of the fixed frame (8), a limiting rod (20) is fixedly connected to a driving end of the electric push rod (19), and one end of the limiting rod (20) is clamped with the corresponding slot.

3. The powder feeding device of a laser cladding apparatus according to claim 2, wherein A limiting plate (14) is slidably connected to the fixed frame (8), an electromagnet is fixedly connected to a lower surface of the limiting plate (14), an iron sheet is fixedly arranged on an upper surface of the sliding block (11), and the limiting rod (20) is connected with the limiting plate (14) through a second pull rope (18).

4. The powder feeding device of a laser cladding apparatus according to claim 3, wherein Limiting grooves are formed in the two side surfaces of the fixed frame (8), a cross block (17) is connected in each limiting groove through a second spring, and the two cross blocks (17) are fixedly connected with the two side surfaces of the limiting plate (14) respectively.

5. A laser cladding apparatus comprising a machining platform (1), a cladding nozzle (10) and a powder feeding device of a laser cladding apparatus according to claim 4, characterized in that, The reciprocating screw rod (4) is rotatably connected with the machining platform (1), the moving seat (5) is connected with the machining platform (1) through an extension rod (2), and the cladding nozzle (10) is fixedly connected with the sliding block (11).

6. The laser cladding apparatus of claim 5, wherein The machining platform (1) is rotatably connected with a second gear (13) and a third gear (12), the second gear (13) and the third gear (12) are meshedly connected, the third gear (12) is fixedly connected with the reciprocating screw rod (4), and the machining platform (1) is fixedly connected with a second servo motor.

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