Corrosion-resistant layer laser cladding equipment for metal piece

Abstract

The utility model relates to the technical field of laser cladding, in particular to corrosion-resistant layer laser cladding equipment for metal parts, the corrosion-resistant layer laser cladding equipment comprises a laser generator, a powder feeding mechanism, a rotating mechanism, a cooling system, a control module and a support, the powder feeding mechanism comprises a powder barrel, a powder feeding pipeline, an air blowing structure and a pre-ventilation structure; the material powder barrel is used for containing corrosion-resistant coating material powder; the pre-filling structure is communicated with the material powder barrel and is used for temporarily containing the corrosion-resistant coating material powder entering from the material powder barrel; the air blowing structure is arranged in the pre-ventilation structure, and the air blowing structure blows the corrosion-resistant coating material powder in the pre-ventilation structure into the powder feeding pipeline. According to the method, the cladding effect on the corrosion-resistant layer of the metal part is improved.

Description

Technical Field

[0001] This application relates to the technical field of laser cladding, and particularly relates to a laser cladding device for a corrosion-resistant layer of a metal part. Background Art

[0002] With the development of industrial manufacturing, metal parts play an important role in various engineering fields. However, due to long-term exposure to harsh environments, metal parts are prone to corrosion, resulting in a shortened service life. Therefore, improving the corrosion resistance of metal parts has become an important research direction in the current metal processing field.

[0003] Traditional surface treatment methods such as plating and coating have problems such as limited corrosion resistance and easy peeling. As an advanced surface strengthening method, laser cladding technology can form a uniform and dense corrosion-resistant layer on the surface of metal parts, improving the corrosion resistance of metal parts.

[0004] However, when existing laser cladding devices process large-area metal parts, they often need to cool the laser generator. During the cooling process of the laser generator, the corrosion-resistant coating powder is prone to stratification due to long-term static placement. When the stratified corrosion-resistant coating powder is transported to the cladding area, it will affect the overall cladding effect on the surface of the metal part, so improvement is needed. Utility Model Content

[0005] In order to improve the cladding effect of the corrosion-resistant layer of metal parts, this application provides a laser cladding device for a corrosion-resistant layer of a metal part.

[0006] A laser cladding device for a corrosion-resistant layer of a metal part provided by this application adopts the following technical solution: A laser cladding device for a corrosion-resistant layer of a metal part includes a laser generator, a powder feeding mechanism, a rotating mechanism, a cooling system, a control module, and a bracket. The powder feeding mechanism includes a powder barrel, a powder feeding pipeline, a gas blowing structure, and a pre-passing structure; the powder barrel is used to hold the corrosion-resistant coating powder; the pre-passing structure is connected to the powder barrel, and the pre-passing structure is used to temporarily hold the corrosion-resistant coating powder entering from the powder barrel; the gas blowing structure is arranged in the pre-passing structure, and the gas blowing structure blows the corrosion-resistant coating powder in the pre-passing structure into the powder feeding pipeline.

[0007] By adopting the above technical solution, when the laser generator is started for the first time and restarted after suspension, the corrosion-resistant coating powder in the powder barrel is in a static state. Under the action of the gas blowing structure, the corrosion-resistant coating powder entering the powder feeding pipeline at this time is extremely unevenly distributed, resulting in stratification of the corrosion-resistant coating formed on the surface of the metal part.

[0008] Optionally, the pre-venting structure includes a pre-venting box, a blocking ring, a rotating assembly, and a plurality of blocking plates. One end of the pre-venting box communicates with the powder barrel, and the other end communicates with the powder feeding pipeline. The rotating assembly is arranged inside the blocking ring and connected to the blocking plates, and the blocking plates can extend out of the blocking ring and abut against each other.

[0009] By adopting the above technical solution, after the blocking plates abut against each other, the corrosion-resistant coating powder can be temporarily stored in the pre-venting box for the air-blowing structure to blow the corrosion-resistant coating powder in the pre-venting box into the powder feeding pipeline.

[0010] Optionally, the blocking ring, the rotating assembly, and the plurality of blocking plates are correspondingly arranged inside the upper and lower sides of the pre-venting box.

[0011] By adopting the above technical solution, the blocking ring, the rotating assembly, and the plurality of blocking plates close to the powder barrel cooperate with each other to control the corrosion-resistant coating powder in the powder barrel to enter the pre-venting box, and the blocking ring, the rotating assembly, and the plurality of blocking plates close to the powder feeding pipeline cooperate with each other to control the corrosion-resistant coating powder in the pre-venting structure to enter the powder feeding pipeline.

[0012] Optionally, the air-blowing structure is provided in multiple groups and symmetrically arranged inside the pre-venting box.

[0013] By adopting the above technical solution, the fluidity of the corrosion-resistant coating powder in the pre-venting box is improved, thereby enhancing the cladding effect. Description of the Drawings

[0014] Figure 1 is the overall structure schematic diagram of a corrosion-resistant layer laser cladding device for metal parts in the present application;

[0015] Figure 2 is the connection schematic diagram of the control module in a corrosion-resistant layer laser cladding device for metal parts in the present application;

[0016] Figure 3 is the powder feeding structure schematic diagram of a corrosion-resistant layer laser cladding device for metal parts in the present application;

[0017] Figure 4 is the structure schematic diagram of the rotating assembly and the blocking plates in a corrosion-resistant layer laser cladding device for metal parts in the present application.

[0018] Description of reference numerals: 1. Laser generator; 2. Powder feeding mechanism; 21. Powder barrel; 22. Powder feeding pipeline; 23. Air blowing structure; 24. Pre - passing structure; 241. Pre - passing box; 242. Blocking ring; 243. Rotating assembly; 2431. Driving source; 2432. First gear; 2433. Second gear; 2434. First connecting ring; 2435. Second connecting ring; 2436. Connecting rod; 244. Blocking plate; 3. Rotating mechanism; 4. Cooling system; 5. Control module; 6. Bracket. Detailed implementation mode

[0019] The following is a further detailed description of this application in conjunction with the attached drawings Figures 1 - 4 to further illustrate this application.

[0020] The embodiment of this application discloses a laser cladding device for corrosion - resistant layers of metal parts. Referring to Figure 1 and Figure 2 , this laser cladding device includes a laser generator 1, a powder feeding mechanism 2, a rotating mechanism 3, a cooling system 4, a control module 5, and a bracket 6 for fixing the metal part. Among them, the bracket 6 is used to support the metal part; the laser generator 1 is used to generate a high - energy laser beam to perform cladding on the surface of the metal part; the powder feeding mechanism 2 is used to send the required corrosion - resistant coating powder to the laser irradiation area; the rotating mechanism 3 is used to drive the metal part to rotate under the laser irradiation to improve the cladding efficiency; the cooling system 4 is used to cool the cladding area to prevent high temperature from damaging the metal part; the control module 5 communicates with the laser generator 1, the powder feeding mechanism 2, the rotating mechanism 3, and the cooling system 4, and is used to control the working states of the laser generator 1, the powder feeding mechanism 2, the rotating mechanism 3, and the cooling system 4 to achieve automated operation. In the embodiment of this application, the control module 5 can be composed of a PLC controller.

[0021] Referring to Figure 3 and Figure 4 , the powder feeding mechanism 2 includes a powder barrel 21, a powder feeding pipeline 22, an air blowing structure 23, and a pre - passing structure 24. Among them, the flow - converging focus of the corrosion - resistant coating powder in the powder feeding pipeline 22 coincides with the converging focus of the high - energy laser beam; the corrosion - resistant coating powder with uniform particles and density is placed in the powder barrel 21; the pre - passing structure 24 is used to temporarily hold the corrosion - resistant coating powder; the air blowing structure 23 is arranged in the pre - passing structure 24, and the air blowing structure 23 can blow the corrosion - resistant coating powder in the pre - passing structure 24 into the powder feeding pipeline 22. The corrosion - resistant coating powder conveyed out from the powder feeding pipeline 22 enters the cladding area, cooperates with the high - energy laser beam, and forms a corrosion - resistant layer on the surface of the metal part.

[0022] Referring to Figure 3 and Figure 4, the pre - passage structure 24 includes a pre - passage box 241, a blocking ring 242, a rotating assembly 243, and a plurality of blocking plates 244. Among them, one end of the pre - passage box 241 is connected to the powder bucket 21, and the other end is connected to the powder delivery pipe 22; the rotating assembly 243 is arranged inside the blocking ring 242 and connected to the blocking plates 244. The blocking plates 244 can extend out of the blocking ring 242 and abut against each other. The blocking ring 242, the rotating assembly 243, and the plurality of blocking plates 244 are correspondingly arranged inside the upper and lower sides of the pre - passage box 241. The blocking ring 242, the rotating assembly 243, and the plurality of blocking plates 244 near the powder bucket 21 cooperate with each other to control the corrosion - resistant coating powder in the powder bucket 21 to enter the pre - passage box 241. The blocking ring 242, the rotating assembly 243, and the plurality of blocking plates 244 near the powder delivery pipe 22 cooperate with each other to control the corrosion - resistant coating powder in the pre - passage structure 24 to enter the powder delivery pipe 22.

[0023] Reference Figure 3 and Figure 4 , the rotating assembly 243 includes a driving source 2431, a first gear 2432, a second gear 2433, a first connecting ring 2434, a second connecting ring 2435, and a connecting rod 2436; in the embodiment of the present application, the blocking plate 244 is in a triangular arc shape. Among them, the first connecting ring 2434 is fixedly welded to the second gear 2433. The first gear 2432, the second gear 2433, and the first connecting ring 2434 are rotatably arranged inside the blocking ring 242, and the second connecting ring 2435 is fixedly arranged inside the blocking ring 242; one end of the connecting rod 2436 is hinged to the first connecting ring 2434, and the other end is hinged to the blocking plate 244; the other end of the blocking plate 244 is hinged to the second connecting ring 2435.

[0024] In the embodiment of the present application, the driving source 2431 is a servo motor and is connected to the control module 5 to achieve automatic start - stop.

[0025] After the servo motor is started, it drives the first gear 2432 to rotate. The rotating first gear 2432 drives the second gear 2433 and the first connecting ring 2434 to rotate. The rotating first connecting ring 2434 drives the connecting rod 2436 and a plurality of blocking plates 244 to move, so that the plurality of blocking plates 244 can abut against each other or separate, and the corrosion - resistant coating powder can be temporarily stored in the pre - passage structure 24.

[0026] Reference Figure 3 , the number of the air - blowing structures 23 is set to multiple groups, and the air - blowing structures 23 are symmetrically arranged on the pre - passage box 241, which improves the fluidity of the corrosion - resistant coating powder in the pre - passage box 241, and further improves the cladding effect.

[0027] Implementation principle: Before starting the laser generator 1, the blocking plates 244 are in mutual contact, and the air-blowing structure 23 is used to make the corrosion-resistant coating powder in the pre-passing structure 24 in a flowing state. Then, the servo motor is started to drive the first gear 2432 to rotate, thereby causing the connecting rod 2436 and the multiple blocking plates 244 to move, so that the multiple blocking plates 244 are separated from each other. Thus, the air-blowing structure 23 can blow the corrosion-resistant coating powder into the powder feeding pipe 22, and then the corrosion-resistant coating material can be sent to the laser irradiation area, thereby reducing the phenomenon of cladding delamination and improving the cladding effect.

[0028] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A laser cladding device for forming a corrosion-resistant layer on a metal part, comprising a laser generator (1), a powder feeding mechanism (2), a rotating mechanism (3), a cooling system (4), a control module (5) and a bracket (6), characterized in that: The powder feeding mechanism (2) comprises a powder barrel (21), a powder feeding pipeline (22), an air blowing structure (23) and a pre-passing structure (24); the powder barrel (21) is used to contain corrosion-resistant coating powder; the pre-passing structure (24) is connected to the powder barrel (21), and the pre-passing structure (24) is used to temporarily contain the corrosion-resistant coating powder entering from the powder barrel (21); the air blowing structure (23) is arranged in the pre-passing structure (24), and the air blowing structure (23) blows the corrosion-resistant coating powder in the pre-passing structure (24) into the powder feeding pipeline (22).

2. The corrosion-resistant layer laser cladding equipment for metal parts according to claim 1 is characterized in that: The pre-pass structure (24) comprises a pre-pass box (241), a blocking ring (242), a rotating assembly (243) and a plurality of blocking plates (244); one end of the pre-pass box (241) is connected to the powder barrel (21), and the other end is connected to the powder delivery pipeline (22); the rotating assembly (243) is arranged in the blocking ring (242) and connected to the blocking plates (244); the blocking plates (244) can extend out of the blocking ring (242) and abut against each other.

3. The corrosion-resistant layer laser cladding equipment for metal parts according to claim 2 is characterized in that: The blocking ring (242), the rotating assembly (243) and the plurality of blocking plates (244) are correspondingly arranged in the upper and lower sides of the pre-pass box (241).

4. The corrosion-resistant layer laser cladding equipment for metal parts according to claim 3 is characterized in that: The rotating assembly (243) comprises a first gear (2432), a second gear (2433), a first connecting ring (2434), a second connecting ring (2435) and a connecting rod (2436); the first connecting ring (2434) is fixedly connected to the second gear (2433); the first gear (2432), the second gear (2433) and the first connecting ring (2434) are rotatably arranged in the blocking ring (242); the second connecting ring (2435) is fixedly arranged in the blocking ring (242); one end of the connecting rod (2436) is hinged to the first connecting ring (2434), and the other end is hinged to the blocking plate (244); the other end of the blocking plate (244) is hinged to the second connecting ring (2435).

5. The corrosion-resistant layer laser cladding equipment for metal parts according to claim 4 is characterized in that: The rotating assembly (243) further comprises a driving source (2431), and the driving source (2431) communicates with the control module (5).

6. The corrosion-resistant layer laser cladding equipment for metal parts according to claim 1 is characterized in that: The air blowing structures (23) are arranged in multiple groups and are symmetrically arranged in the pre-pass box (241).

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