Lateral powder feeder for laser cladding

Abstract

The application discloses a side powder feeding device for laser cladding and belongs to the technical field of laser cladding. The device aims to solve the problems of inconvenient adjustment of the powder outlet head spray angle and complicated powder adding operation of the powder storage tank in the prior art. The technical scheme comprises a powder storage tank, a powder unloading valve, a hose and a multi-direction powder downward mechanism arranged outside the hose. The multi-direction powder downward mechanism comprises a second fixed plate, a first fixed plate rotatably connected to the second fixed plate, and the hose is fixedly connected to the first fixed plate. A first motor drives the first fixed plate to vertically rotate through a connecting rod. Another assembly comprises a second motor, which drives the first fixed plate to rotate leftward and rightward through a second connecting rod. The multi-direction powder downward mechanism realizes the multi-angle accurate adjustment of the powder outlet head spray direction, and the quick disassembly and assembly of the powder cover are realized through the disassembly mechanism, so that the operation is convenient, the working efficiency and the cladding quality are improved.

Description

Technical Field

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

[0002] Laser cladding, as an advanced surface modification technology, is widely used in aerospace, automotive manufacturing, mold repair, and other fields. It involves fusing a layer of material with special properties onto the surface of a substrate to improve the workpiece's wear resistance, corrosion resistance, high-temperature resistance, and other properties. In the laser cladding process, precise powder material delivery is one of the key factors determining the quality of the cladding layer. Currently, common powder delivery methods include coaxial powder delivery and lateral powder delivery. Lateral powder delivery is widely used in actual production due to its good adaptability to complex-shaped workpieces and its ease of observation and adjustment.

[0003] However, existing lateral powder feeding devices for laser cladding still face some challenges in practical applications. On the one hand, as workpiece shapes become increasingly complex, the requirements for powder spraying angles are also becoming more stringent. Traditional lateral powder feeding devices often only allow for limited angle adjustments, or the adjustment process is cumbersome, requiring manual tightening of bolts or replacement of fixing fixtures. This makes it difficult to achieve optimal matching between the powder flow, the laser beam, and the molten pool, resulting in unstable cladding layer quality and even failing to meet the processing requirements of certain special workpieces. Especially for applications requiring precise control of the powder flow direction, existing devices lack the ability for multi-angle, precise positioning, greatly limiting their application range and efficiency.

[0004] On the other hand, adding powder during laser cladding is a common and necessary operation. Existing equipment generally uses threaded caps or flanges for the powder filling port of the powder storage tank. Each time powder is added, it takes a long time to unscrew or disassemble, which is cumbersome. This not only reduces production efficiency but also increases the workload of operators. This inconvenience is particularly prominent when there is continuous production or when the powder type needs to be changed frequently.

[0005] Therefore, this utility model proposes a side powder feeding device for laser cladding, which aims to solve the shortcomings of the existing side powder feeding device, such as inconvenient adjustment of the powder outlet spray angle and cumbersome powder filling operation of the powder storage tank. Summary of the Invention

[0006] In view of the problems existing in the side powder feeding device for laser cladding, such as inconvenient adjustment of the powder outlet spray angle, need for manual operation, low positioning accuracy, and cumbersome, time-consuming and labor-intensive operation of adding powder to the powder storage tank, this utility model aims to provide a side powder feeding device for laser cladding with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a side powder feeding device for laser cladding, including: a powder storage tank, and a flexible tube connected to one end of the bottom of the tank via a powder discharge valve; and a multi-powder feeding mechanism disposed on the outside of the flexible tube.

[0008] The multi-direction powder mechanism includes a second fixed plate and a first fixed plate rotatably connected to the second fixed plate, as well as a first motor and a second-direction assembly, the second-direction assembly including the second motor.

[0009] Furthermore, the hose is fixedly connected to the first fixing plate, the output end of the first motor is connected to the first fixing plate via the first connecting rod, and the output end of the second motor in the other assembly is connected to the first fixing plate via the second connecting rod.

[0010] Furthermore, by setting motor one and motor two as independent power sources for vertical and left-right rotation respectively, the structure achieves decoupled control of the hose spray angle in two vertical dimensions. The operator can accurately and quickly adjust the pitch and orientation of the powder head, so that the powder flow can be accurately delivered to any target area of ​​the workpiece, which greatly improves the adaptability of the device to workpieces with complex contours and the accuracy of the cladding process.

[0011] Preferably, the end of the hose furthest from the powder discharge valve is connected to a powder outlet.

[0012] Furthermore, the powder outlet setting constrains and accelerates the conveyed powder flow, forming a focused and highly directional powder bundle, which is crucial for improving the powder utilization rate and the forming accuracy of the cladding layer during the cladding process.

[0013] Preferably, the second motor is fixedly installed at the rear end of the second fixing plate.

[0014] Furthermore, by mounting the second motor on the rear end of the fixed plate second, which serves as the base, the position of the power source driving the horizontal rotation is fixed, making the structure more stable and compact. At the same time, the transmission path is simplified, and the transmission efficiency and reliability are improved.

[0015] Preferably, a powder cover is detachably installed at the top opening of the powder storage tank, and a disassembly mechanism for locking or releasing the powder cover is provided on the outer wall of the powder storage tank.

[0016] Furthermore, the combination of the disassembly mechanism and the powder cover changes the traditional threaded or flanged connection method, enabling tool-free quick opening and closing, greatly simplifying the powder adding process, shortening downtime caused by adding materials, and thus improving overall production efficiency.

[0017] Preferably, the disassembly mechanism includes a button that is slidably mounted on the wall of the powder storage tank, a fixing rod with one end fixed to the inner wall of the button and the other end sliding through the tank wall, a buckle connected to the end of the fixing rod, and springs with both ends abutting against the inner wall of the powder storage tank and the inner side of the button, respectively.

[0018] Furthermore, the structure unlocks by pressing a button, compressing a spring, and causing the fixing rod and buckle to retract. After release, the spring automatically resets and locks, forming a complete and reliable mechanical quick locking and releasing system. Its actions are intuitive and easy to operate.

[0019] Preferably, the bottom of the powder cover has a locking hole that matches the fastener.

[0020] Furthermore, the locking holes provide a precise engagement position for the locking blocks, ensuring that the powder cover is accurately positioned and does not wobble when locked, thus guaranteeing the airtightness of the powder storage tank.

[0021] Preferably, the spring is sleeved on the outer periphery of the fixed rod. Furthermore, sleeved on the outer periphery of the fixed rod not only saves radial space and makes the structure more compact, but the fixed rod also acts as a guide for the spring, preventing the spring from bending or deflecting during compression and rebound, thus ensuring the smooth operation of the mechanism.

[0022] Preferably, the button has a hollow internal structure, and one end of the fixing rod is fixed to the inner wall of the button's hollow structure.

[0023] Furthermore, the hollow button design reduces its weight while ensuring strength, and also provides space for the connection end of the fixing rod to accommodate and protect it, making the external structure simple and beautiful.

[0024] Preferably, the powder storage tank also has an observation port on its wall.

[0025] Furthermore, through the observation port, operators can intuitively understand the remaining amount and status of powder inside the powder storage tank without opening the powder cover, which facilitates timely replenishment of powder and avoids interruption of the cladding process due to powder depletion, thereby enhancing the predictability and continuity of the production process.

[0026] This utility model has the following beneficial effects:

[0027] 1. This utility model solves the problems of inconvenient adjustment of the powder spraying angle and difficulty in precise positioning of the powder feeding device in the prior art by setting up a multi-down powder mechanism driven by two motors to rotate vertically and horizontally respectively. It achieves the effect of flexible adjustment and precise control of the spraying direction at multiple angles, and improves the adaptability of the device and the cladding quality.

[0028] 2. This utility model solves the problem that the powder cover in the prior art mostly uses threaded connection, which is time-consuming and laborious to disassemble and assemble. It realizes quick and tool-free disassembly and assembly of the powder cover by setting a button-type spring buckle disassembly mechanism on the powder storage tank, which simplifies the powder adding operation and significantly improves work efficiency.

[0029] 3. This utility model has a compact and reasonable overall structural design. By integrating the angle adjustment mechanism and the quick disassembly mechanism into one unit, it has clear functions, is easy to operate, and has strong practicality and promotional value. Attached Figure Description

[0030] Figure 1 This is a three-dimensional schematic diagram of the side powder feeding device for laser cladding proposed in this utility model;

[0031] Figure 2 This is a schematic diagram of the flexible tube of the side powder feeding device for laser cladding proposed in this utility model;

[0032] Figure 3 This is a schematic diagram of the powder cover of the side powder feeding device for laser cladding proposed in this utility model;

[0033] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0034] Legend:

[0035] 1. Powder storage tank; 2. Observation port;

[0036] 3. Multi-powder downward mechanism; 31. Hose; 32. Fixing plate 1; 33. Motor 1; 34. Connecting rod 1;

[0037] 35. Alternating component; 351. Fixing plate two; 352. Motor two; 353. Connecting rod two;

[0038] 36. Produce powder tips;

[0039] 4. Disassembly mechanism; 41. Button; 42. Fixing rod; 43. Spring; 44. Buckle; 45. Powder cover;

[0040] 5. Powder discharge valve. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0042] Example:

[0043] Please refer to Figures 1 to 4This utility model provides a side powder feeding device for laser cladding, which aims to solve the problems of inconvenient adjustment of the powder outlet spray angle and cumbersome powder filling operation of the powder storage tank in the prior art.

[0044] like Figure 1 As shown, the side powder feeding device for laser cladding includes a powder storage tank 1. The bottom of the powder storage tank 1 is connected to one end of a flexible hose 31 via a powder discharge valve 5. An observation port 2 is also provided on the tank wall of the powder storage tank 1 for observing the internal powder condition. A powder outlet head 36 is connected to the end of the flexible hose 31 away from the powder discharge valve 5 for spraying powder. The core of this embodiment is the multi-downward powder feeding mechanism 3 located on the outside of the flexible hose 31. The multi-downward powder feeding mechanism 3 includes a second fixing plate 351, a first fixing plate 32 rotatably connected to the second fixing plate 351, a flexible hose 31 fixedly connected to the first fixing plate 32, and a first motor 33. The output end of the device is connected to the fixed plate 32 via a connecting rod 34, which drives the fixed plate 32 to rotate the hose 31 vertically, thereby adjusting the pitch spray angle of the powder head 36. The multi-downward powder mechanism 3 also includes a directional component 35, which includes a motor 352 fixedly installed at the rear end of the fixed plate 351. The output end of the motor 352 is connected to the fixed plate 32 via a connecting rod 353, which drives the fixed plate 32 to rotate left and right around its rotation axis with the fixed plate 351, thereby adjusting the horizontal spray direction of the powder head 36.

[0045] Reference Figure 1 , Figure 3 and Figure 4 The disassembly mechanism 4 includes a button 41, a fixing rod 42, a spring 43, and a buckle 44. The button 41 is slidably mounted on the wall of the powder storage tank 1 and has a hollow structure inside. One end of the fixing rod 42 is fixed to the inner wall of the hollow structure of the button 41, and the other end slides through the wall of the powder storage tank 1 and extends into the interior of the powder storage tank 1. The buckle 44 is connected to the end of the fixing rod 42 away from the button 41. The spring 43 is sleeved on the outer periphery of the fixing rod 42, and its two ends abut against the inner wall of the powder storage tank 1 and the inner side of the button 41, respectively. Its function is to provide a reset spring force for the button 41.

[0046] Meanwhile, the bottom end of the powder cover 45 is provided with a corresponding locking hole that matches the shape and size of the locking block 44. In the assembled state, the elastic force of the spring 43 pushes the button 41 to move outward, which in turn drives the fixing rod 42 to move outward, so that the locking block 44 at the end of the fixing rod 42 is locked into the locking hole of the powder cover 45, thereby locking the powder cover 45. When the button 41 is pressed, the button 41 moves inward to compress the spring 43 and drives the fixing rod 42 to move into the powder storage tank 1, so that the locking block 44 is disengaged from the locking hole of the powder cover 45. At this time, the powder cover 45 can be removed. This matching structure ensures the quick and convenient powder adding operation and significantly improves work efficiency.

[0047] In one preferred embodiment, the end of the hose 31 furthest from the powder discharge valve 5 is connected to the powder outlet 36. In another preferred embodiment, to make the structure of the directional component 35 more compact and stable, the motor 2 352 is fixedly installed on the rear end of the fixing plate 2 351. In addition, to achieve reliable locking of the disassembly mechanism 4, the bottom end of the powder cover 45 is provided with a locking hole that cooperates with the buckle 44. In order to effectively guide and limit the spring 43, the spring 43 is sleeved on the outer periphery of the fixing rod 42. In order to achieve stable connection between the fixing rod 42 and the button 41, the inside of the button 41 is a hollow structure, and one end of the fixing rod 42 is fixed on the inner wall of the hollow structure of the button 41. Furthermore, in order to facilitate real-time monitoring of the remaining powder in the powder storage tank 1, an observation port 2 is also provided on the tank wall of the powder storage tank 1.

[0048] The working principle is as follows:

[0049] When laser cladding is required, the powder stored in the powder storage tank 1 enters the hose 31 through the powder discharge valve 5 and is finally sprayed out from the powder outlet 36. During the powder feeding process, if the powder spraying angle needs to be adjusted, the multi-downward powder mechanism 3 is activated. When the vertical pitch angle needs to be adjusted, the motor 1 33 is activated. The motor 1 33 drives the fixed plate 1 32 to rotate through the connecting rod 1 34. Since the hose 31 is fixed on the fixed plate 1 32, the hose 31 rotates vertically, thereby changing the pitch angle of the powder outlet 36. When the horizontal orientation needs to be adjusted, the motor 2 352 is activated. The motor 2 352 drives the fixed plate 1 32 to rotate horizontally around the rotational connection between it and the fixed plate 2 351 through the connecting rod 2 353, thereby changing the horizontal orientation of the powder outlet 36. Through the coordinated control of the motor 1 33 and the motor 2 352, the multi-angle controllability of the powder spraying direction of the powder outlet 36 is realized, solving the problem of inconvenient powder spraying angle adjustment in the prior art.

[0050] When powder needs to be added to the powder storage tank 1, the operator presses the buttons 41 located on both sides of the powder storage tank 1. The buttons 41 move inward and compress the spring 43, which in turn drives the fixing rod 42, which is fixed to the inner wall of the button 41, to slide into the powder storage tank 1. The latch 44 at the end of the fixing rod 42 then disengages from the locking hole at the bottom of the powder cover 45. After both latches 44 are disengaged, the powder cover 45 can be removed upward for adding powder. After adding powder, the button 41 is released. Under the elastic force of the spring 43, the fixing rod 42 and the button 41 automatically reset, and the latch 44 also returns to the ready-to-lock position. At this time, the powder cover 45 can be put back on and automatically locked. Through the coordinated action of the disassembly mechanism 4 and the powder cover 45, this utility model solves the problem of cumbersome powder adding operation in the prior art.

Claims

1. A side powder feeding device for laser cladding, comprising a powder storage tank (1) and a flexible hose (31) connected to one end of the tank via a powder discharge valve (5); characterized in that, The side powder feeding device for laser cladding also includes a multi-powder feeding mechanism (3) disposed on the outside of the hose (31); The multi-powder downward mechanism (3) includes a fixed plate two (351); Fixed plate one (32) is rotatably connected to fixed plate two (351), and the hose (31) is fixedly connected to fixed plate one (32); Motor 1 (33), whose output end is connected to the fixed plate 1 (32) via connecting rod 1 (34), is used to drive the fixed plate 1 (32) to drive the hose (31) to rotate vertically; And a reversing component (35), the reversing component (35) includes a second motor (352), the output end of the second motor (352) is connected to the first fixed plate (32) through a second connecting rod (353), and is used to drive the first fixed plate (32) to rotate in the left and right directions.

2. The lateral powder feeding device for laser cladding according to claim 1, characterized in that, The end of the hose (31) away from the powder discharge valve (5) is connected to a powder outlet (36).

3. The lateral powder feeding device for laser cladding according to claim 1, characterized in that, The second motor (352) is fixedly installed at the rear end of the second fixing plate (351).

4. The lateral powder feeding device for laser cladding according to claim 1, characterized in that, A powder cover (45) is detachably installed at the top opening of the powder storage tank (1), and a disassembly mechanism (4) for locking or releasing the powder cover (45) is provided on the outer wall of the powder storage tank (1).

5. The lateral powder feeding device for laser cladding according to claim 4, characterized in that, The disassembly mechanism (4) includes: Button (41), which is slidably mounted on the wall of the powder storage tank (1); A fixing rod (42) has one end fixed to the inner wall of the button (41) and the other end slidably inserted through the wall of the powder storage tank (1). The fastener (44) is connected to the end of the fixing rod (42) away from the button (41) and is used to engage with the powder cover (45); And a spring (43), the two ends of which abut against the inner wall of the powder storage tank (1) and the inner side of the button (41), respectively.

6. The lateral powder feeding device for laser cladding according to claim 5, characterized in that, The bottom end of the powder cover (45) is provided with a locking hole that cooperates with the buckle (44).

7. The lateral powder feeding device for laser cladding according to claim 5, characterized in that, The spring (43) is sleeved on the outer periphery of the fixed rod (42).

8. The lateral powder feeding device for laser cladding according to claim 5, characterized in that, The button (41) has a hollow structure inside, and one end of the fixing rod (42) is fixed to the inner wall of the hollow structure of the button (41).

9. The lateral powder feeding device for laser cladding according to claim 1, characterized in that, The powder storage tank (1) is also provided with an observation port (2) on its tank wall.

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