Rotary laser cladding head

Abstract

The utility model discloses a rotary laser cladding head, and particularly relates to the technical field of laser processing, which comprises a cladding head, an outer shell is sleeved on the surface of the cladding head, a wire feeding pipe is fixedly arranged in the cladding head, a welding wire is fixedly arranged in the wire feeding pipe, and a dismounting mechanism is fixedly arranged in the outer shell. The dismounting mechanism comprises a powder feeding column fixedly arranged in the outer shell, one end of the wire feeding pipe penetrates through the powder feeding column and extends to the outside of the powder feeding column, a plurality of mounting grooves are formed in the surface of the powder feeding column, conveying pipes are fixedly arranged in the mounting grooves, and threaded pipes are fixedly arranged at one ends of the conveying pipes; the interior of the threaded pipe is in threaded connection with a discharging nozzle, and a threaded groove is formed in the surface of the threaded pipe. According to the utility model, different discharge nozzles can be replaced according to different cladding requirements, so that the use flexibility and compatibility are improved, and the cladding requirements of different materials and shapes can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser processing technical field more specifically, the utility model relates to a rotary laser cladding head. BACKGROUND

[0002] In recent years, laser cladding technology has developed rapidly, laser cladding technology is with high-energy laser beam as heat source, powder material is cladded on the surface of part to prepare high-performance protective coating, improves material surface hardness, wear resistance, corrosion resistance, oxidation resistance, high temperature resistance and other properties, thereby improves the life of part.

[0003] The existing mechanism controls the volume fraction of the reinforcing phase in the composite material by adjusting the powder feeding amount, and the laser repair technology of co-feeding powder and wire is applied to the repair of marine equipment, but the performance of the cladding layer is difficult to reach the same level as the base material, resulting in unsatisfactory repair effect.

[0004] Through retrieval, the Chinese patent with the authorization announcement number CN113088964A discloses a mechanical rotary synchronous wire and powder feeding laser cladding device, which can add appropriate powder for laser cladding according to the service condition of the damaged parts, strengthen the required hardness, strength and corrosion resistance, and is more suitable for equipment repair in harsh and complex underwater environment, and by adjusting the movement speed of the powder and increasing the metallurgical reaction time of the reinforcing phase particles and high-temperature liquid metal, the distribution of the internal powder of the droplet is controlled, thereby the distribution of the reinforcing phase in the droplet and the cladding layer is controlled, the performance of the cladding layer is optimized, and the mechanical rotation is used to adjust the powder feeding speed to control the distribution of the powder in the droplet, so that the distribution of the particles in the cladding layer is controllable, and the performance of the cladding layer is further optimized.

[0005] However, the powder is fed out from the powder feeding hole around the wire feeding hole, and the powder in the air presents a cylindrical shape with a gradually necked middle part from both ends, which makes it impossible to replace the size of the discharge opening according to different cladding requirements, resulting in low flexibility. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rotary laser cladding head to solve the problems in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A rotary laser cladding head, comprising a cladding head, an outer shell body is sleeved on the surface of the cladding head, a wire feeding pipe is fixedly arranged in the inside of the cladding head, a welding wire is fixedly arranged in the inside of the wire feeding pipe, and a dismounting mechanism is fixedly arranged in the inside of the outer shell body.

[0009] The dismounting mechanism comprises a powder feeding column fixedly arranged in the outer shell body, one end of the wire feeding pipe penetrates through the powder feeding column and extends to the outside of the powder feeding column, a plurality of mounting grooves are formed in the surface of the powder feeding column, a conveying pipe is fixedly arranged in each of the plurality of mounting grooves, a threaded pipe is fixedly arranged at one end of the conveying pipe, a discharge nozzle is threadedly connected in the threaded pipe, a threaded groove is formed in the surface of the threaded pipe, a bolt is threadedly connected in the threaded groove, one end of the bolt penetrates through the discharge nozzle and extends to the inside of the discharge nozzle, and a sealing ring is fixedly arranged at one end of the discharge nozzle.

[0010] By adopting the above technical scheme, different discharge nozzles can be replaced according to different cladding requirements, the flexibility and compatibility of use are improved, and the cladding requirements of different materials and shapes can be met.

[0011] As a further description of the above technical scheme, a fixing frame is fixedly arranged on one side of the outer shell body, a rotating mechanism is fixedly arranged in the fixing frame, the rotating mechanism comprises a motor fixedly arranged at the top of the fixing frame, a rotating shaft is fixedly arranged at the output end of the motor, a driving sprocket is fixedly arranged at the outside of the rotating shaft, a chain is engaged with the surface of the driving sprocket, a driven sprocket is engaged with the inside of the chain, and a rotating rod is fixedly arranged on one side of the driven sprocket.

[0012] By adopting the above technical scheme, the stability during rotation is ensured, and at the same time, the rotation process helps to realize more uniform material distribution and better cladding.

[0013] As a further description of the above technical scheme, one end of the rotating rod penetrates through the outer shell body and extends to the inside of the outer shell body, one end of the rotating rod is connected with the surface of the cladding head, the surface of the rotating rod is rotatably connected with the outer shell body, a feeding pipe is fixedly arranged on one side of the cladding head, a sealing cover is clamped in the feeding pipe, a reinforcing steel sheet is fixedly arranged on the inner wall of the cladding head, and the inner walls of the threaded pipe and the discharge nozzle are provided with anticorrosive layers.

[0014] By adopting the above technical scheme, the sealing effect and reliability are improved, and good rigidity and stability are achieved to resist external interference and load changes.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] Compared with the prior art, the bolt is taken out from the inside of the discharge nozzle and the threaded groove by setting the dismounting mechanism, then the discharge nozzle is rotated to exit in the inside of the threaded pipe by the forward discharge nozzle, the sealing ring is also moved to take off the discharge nozzle, the sealing effect is also strengthened, powder leakage caused by the loose sealing during the rotation process is prevented, different discharge nozzles can be replaced according to different cladding requirements, multi-material compatibility is realized, and high-precision repair effect is realized.

[0017] Compared with the prior art, the shaft is rotated by starting the motor, the driving sprocket is rotated by the shaft, the chain is moved by the driving sprocket, the driven sprocket is rotated by the chain, then the rotating rod is rotated by the driven sprocket, the cladding head is rotated by the rotating rod, and the discharge nozzle is also moved, so that the powder can be uniformly distributed in the irradiation range of the laser beam during the cladding process, the waste of the powder and the unevenness of the cladding layer are reduced, and the laser beam forms a continuous cladding track on the surface of the base material, and the cladding material gradually forms metallurgical bonding with the base material. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] Figure 2 It is a dismounting mechanism structure schematic view of the utility model.

[0020] Figure 3 It is a dismounting mechanism split structure schematic view of the utility model.

[0021] Figure 4 It is a rotating mechanism structure schematic view of the utility model.

[0022] Figure 5 It is a whole cross section structure schematic view of the utility model.

[0023] The signs are: 1, cladding head; 2, outer shell; 3, wire feeding pipe; 4, welding wire; 5, powder feeding column; 6, conveying pipe; 7, threaded pipe; 8, discharge nozzle; 9, bolt; 10, sealing ring; 11, fixed frame; 12, motor; 13, shaft; 14, driving sprocket; 15, chain; 16, driven sprocket; 17, rotating rod; 18, feeding pipe; 19, sealing cover; 20, reinforcing steel sheet; 21, anticorrosive layer. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] The embodiment of the application discloses a rotary laser cladding head as shown in the figure Figures 1-5 The embodiment of the application discloses a rotary laser cladding head as shown in the figure

[0026] The dismounting mechanism comprises a powder feeding column 5 fixedly arranged in the outer shell 2, one end of the wire feeding pipe 3 penetrates through the powder feeding column 5 and extends to the outside of the powder feeding column 5, a plurality of mounting grooves are formed in the surface of the powder feeding column 5, a conveying pipe 6 is fixedly arranged in each of the mounting grooves, one end of the conveying pipe 6 is fixedly provided with a threaded pipe 7, the threaded pipe 7 is internally threadedly connected with a discharging nozzle 8, a threaded groove is formed in the surface of the threaded pipe 7, the threaded groove is internally threadedly connected with a bolt 9, one end of the bolt 9 penetrates through the discharging nozzle 8 and extends to the inside of the discharging nozzle 8, one end of the discharging nozzle 8 is fixedly provided with a sealing ring 10, when the discharging nozzle 8 is replaced, the bolt 9 is driven to be taken out from the inside of the discharging nozzle 8 and the threaded groove by being forwardly rotated, then the discharging nozzle 8 is driven to rotate and exit in the inside of the threaded pipe 7 by being forwardly rotated, and the sealing ring 10 is also moved to take down the discharging nozzle 8, the above steps are reversed, and then different discharging nozzles 8 can be replaced according to different cladding requirements, multi-material compatibility is realized, and high-precision repair effect is realized.

[0027] Refer to Figures 2-3As shown, one side of the outer shell 2 is fixedly provided with a fixed frame 11, the inside of the fixed frame 11 is fixedly provided with a rotating mechanism, the rotating mechanism comprises a motor 12 fixedly arranged at the top of the fixed frame 11, the output end of the motor 12 is fixedly provided with a rotating shaft 13, the outside of the rotating shaft 13 is fixedly provided with a driving sprocket 14, the surface of the driving sprocket 14 is engaged with a chain 15, the inside of the chain 15 is engaged with a driven sprocket 16, one side of the driven sprocket 16 is fixedly provided with a rotating rod 17, the motor 12 is started to drive the rotating shaft 13 to rotate, the rotating shaft 13 drives the driving sprocket 14 to rotate, the driving sprocket 14 drives the chain 15 to move, the chain 15 drives the driven sprocket 16 to rotate, then the driven sprocket 16 drives the rotating rod 17 to rotate, the rotating rod 17 drives the cladding head 1 to rotate, and also drives the discharge nozzle 8 to move, so that the powder can be uniformly distributed in the irradiation range of the laser beam during the cladding process, the waste of the powder and the unevenness of the cladding layer are reduced, and the laser beam forms a continuous cladding track on the surface of the base material, and the cladding material gradually forms a metallurgical bond with the base material.

[0028] Referring to Figures 4-5 As shown, one end of the rotating rod 17 penetrates through the outer shell 2 and extends into the outer shell 2, the one end of the rotating rod 17 is connected with the surface of the cladding head 1, the surface of the rotating rod 17 is rotatably connected with the outer shell 2, one side of the cladding head 1 is fixedly provided with a feeding pipe 18, the inside of the feeding pipe 18 is clamped with a sealing cover 19, the inner wall of the cladding head 1 is fixedly provided with a reinforcing steel sheet 20, the inner walls of the threaded pipe 7 and the discharge nozzle 8 are provided with a corrosion-resistant layer 21, the inner wall of the cladding head 1 is provided with the reinforcing steel sheet 20, which strengthens the supporting effect to ensure that it can still remain stable in high-speed rotation and high-temperature environment, and the inner walls of the threaded pipe 7 and the discharge nozzle 8 are provided with the corrosion-resistant layer 21 to enhance the wear resistance and corrosion resistance, thereby prolonging the service life, opening the sealing cover 19, guiding the powder into the powder feeding column 5 through the feeding pipe 18, and conveying the powder into the inside of the conveying pipe 6 through the powder feeding column 5, a plurality of conveying pipes 6 are uniformly distributed to ensure that the powder can be uniformly and stably conveyed to the discharge nozzle 8, then the powder is conveyed into the inside of the threaded pipe 7 through the plurality of conveying pipes 6, and then the powder is fed into the molten pool area through the discharge nozzle 8, and the welding wire 4 in the wire feeding pipe 3 is also dropped into the molten pool area through laser action, thereby improving the use effect.

[0029] The working principle of the utility model:

[0030] The utility model discloses a rotary laser cladding head, the device is used in cooperation with the device of laser, and the high energy density laser beam produced when using the laser is focused on the surface of base material through optical system, forms the high temperature molten pool of small area, then simultaneously, open the sealing cover 19, and the powder is introduced to the powder column 5 through the inlet pipe 18, and is transported to the inside of the conveying pipe 6 through the powder column 5, a plurality of conveying pipes 6 are evenly distributed, ensure that the powder can be evenly, stably transported to the discharge nozzle 8, then are transported to the inside of the threaded pipe 7 through a plurality of conveying pipes 6, then the powder is sent into the molten pool area through the discharge nozzle 8, and the welding wire 4 in the wire feeding pipe 3 is also dropped into the molten pool area through the laser effect, forms the molten drop,

[0031] Simultaneously start motor 12 and drive rotating shaft 13 to rotate, and rotating shaft 13 drives driving sprocket 14 to rotate, and driving sprocket 14 drives chain 15 to move, and chain 15 drives driven sprocket 16 to rotate, and then driven sprocket 16 drives rotating rod 17 to rotate, and rotating rod 17 drives cladding head 1 to rotate, and simultaneously also drive discharge nozzle 8 to move, so that the powder can be evenly distributed in the irradiation range of laser beam during the cladding process, reduce the waste of powder and the unevenness of cladding layer, and the laser beam forms continuous cladding track on the surface of base material, and the cladding material gradually forms metallurgical bonding with the base material;

[0032] When it is needed to replace discharge nozzle 8, positive rotation bolt 9 drives bolt 9 to be taken out from the inside of discharge nozzle 8 and threaded groove, and then positive discharge nozzle 8 drives discharge nozzle 8 to rotate and exit in the inside of threaded pipe 7, also drive sealing ring 10 to move to remove discharge nozzle 8, and according to the above steps, inversely operate, and then different discharge nozzles 8 can be replaced according to different cladding requirements, realize multi-material compatibility, realize high-precision repair effect, and the inner wall of cladding head 1 is provided with reinforcing steel sheet 20, and the reinforcing support effect is strengthened, to ensure that it can still maintain stability under high-speed rotation and high-temperature environment, and the inner wall of threaded pipe 7 and discharge nozzle 8 is provided with anticorrosive layer 21, to strengthen the wear resistance and corrosion resistance, to prolong the service life.

[0033] The above are the preferred embodiments of the application, not limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A rotary laser cladding head, comprising a cladding head (1), characterized in that: The surface of the cladding head (1) is fitted with an outer shell (2), and a wire feeding tube (3) is fixedly installed inside the cladding head (1). A welding wire (4) is fixedly installed inside the wire feeding tube (3), and a disassembly mechanism is fixedly installed inside the outer shell (2). The disassembly mechanism includes a powder feeding column (5) fixedly installed inside the outer shell (2). One end of the wire feeding tube (3) passes through the powder feeding column (5) and extends to the outside of the powder feeding column (5). Multiple mounting grooves are opened on the surface of the powder feeding column (5). A conveying pipe (6) is fixedly installed inside each of the multiple mounting grooves. A threaded pipe (7) is fixedly installed at one end of the conveying pipe (6). A discharge nozzle (8) is threaded inside the threaded pipe (7). A threaded groove is opened on the surface of the threaded pipe (7). A bolt (9) is threaded inside the threaded groove. One end of the bolt (9) passes through the discharge nozzle (8) and extends to the inside of the discharge nozzle (8). A sealing ring (10) is fixedly installed at one end of the discharge nozzle (8).

2. The rotary laser cladding head according to claim 1, characterized in that: A fixed frame (11) is fixedly installed on one side of the outer shell (2). A rotating mechanism is fixedly installed inside the fixed frame (11). The rotating mechanism includes a motor (12) fixedly installed on the top of the fixed frame (11). A rotating shaft (13) is fixedly installed at the output end of the motor (12).

3. The rotary laser cladding head according to claim 2, characterized in that: A drive sprocket (14) is fixedly installed on the outside of the shaft (13). A chain (15) is engaged on the surface of the drive sprocket (14). A driven sprocket (16) is engaged inside the chain (15). A rotating rod (17) is fixedly installed on one side of the driven sprocket (16).

4. The rotary laser cladding head according to claim 3, characterized in that: One end of the rotating rod (17) penetrates the outer shell (2) and extends into the inner part of the outer shell (2). One end of the rotating rod (17) is connected to the surface of the cladding head (1). The surface of the rotating rod (17) is rotatably connected to the outer shell (2).

5. The rotary laser cladding head according to claim 1, characterized in that: A feed pipe (18) is fixedly provided on one side of the cladding head (1), and a sealing cap (19) is snapped into the inside of the feed pipe (18).

6. The rotary laser cladding head according to claim 1, characterized in that: The inner wall of the cladding head (1) is fixedly provided with a reinforcing steel sheet (20), and the inner walls of the threaded pipe (7) and the discharge nozzle (8) are both provided with an anti-corrosion layer (21).

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