Laser cladding recovery device

Abstract

The utility model discloses a laser cladding recovery device. The laser cladding recovery device comprises a working head, a shell of the working head is in a downward horn mouth shape, and a powder return channel, a powder feeding channel and a laser head are sequentially arranged in the shell of the working head from outside to inside. The powder return channel and the powder feeding channel are separated through the outer wall of the powder feeding channel. The powder feeding channel is used for providing outward airflow so as to send out powder. The powder return channel is used for providing negative pressure to recover powder; and the laser head is used for generating laser and is matched with the powder fed out by the powder feeding channel to realize laser cladding. The laser cladding recovery device provided by the utility model can automatically recover cladding powder splashed in the laser cladding process in real time, so that research and development consumables are saved, the cladding cost is reduced, the environment of workers is improved, and the damage of powder splashing to cladding workers is reduced; and the laser cladding recovery device is low in design cost, stable in work and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder metallurgy processing technical field especially is related to a laser cladding recovery device. BACKGROUND

[0002] Laser cladding is an advanced material surface modification technology, which uses a laser heat source to heat metal powder to a molten state and sprays it onto the surface of the treated object to form a coating. This technology can form a dense, wear-resistant, corrosion-resistant and high-hardness coating on the surface of the base material, improving material performance and extending the service life of parts, and has a wide application prospect. Although laser cladding technology has many advantages, it also has some disadvantages and challenges, one of which is powder splashing, a common problem during laser cladding powder spraying. Splashing can cause loss and uneven deposition of powder, affecting the quality and efficiency of finished products. Moreover, it can also directly affect the safety of technical operators, who need to wear dust masks, and even inhale powder into their lungs.

[0003] Current solutions include optimizing powder spraying parameters and using anti-splashing nozzles. However, these solutions do not solve the problem of powder splashing and have low powder recovery rates, increasing costs and resource consumption.

[0004] Therefore, it is necessary to design a laser cladding recovery device to solve the above problems. SUMMARY

[0005] To solve the problems raised in the background art, the technical solution adopted by the utility model is:

[0006] A laser cladding recovery device, comprising a work head;

[0007] The shell of the work head is in the shape of a downward-facing horn mouth, and inside the shell of the work head, a powder return channel, a powder feeding channel and a laser head are arranged from outside to inside;

[0008] The powder return channel and the powder feeding channel are separated by the outer wall of the powder feeding channel;

[0009] The powder feeding channel is used to provide an outward airflow to feed out the powder;

[0010] The powder return channel is used to provide negative pressure to recover the powder;

[0011] The laser head is used to generate laser light and cooperate with the powder fed out by the powder feeding channel to achieve laser cladding.

[0012] In some embodiments, it further includes a powder feeder, a powder feeding tube and a powder return tube;

[0013] In the working head, the upper end of the powder feeding channel communicates with one end of the powder feeding pipe, and the upper end of the powder returning channel communicates with one end of the powder returning pipe;

[0014] The other end of the powder feeding pipe and the powder returning pipe both communicate with the powder feeder;

[0015] The powder feeder is used to feed the powder to the powder feeding channel of the working head through the powder feeding pipe by means of air-borne powder feeding, and collect the powder returned from the powder returning pipe.

[0016] In some embodiments, a powder screening machine and a powder returning bin are further included;

[0017] The powder returning pipe is divided into multiple sections, and the powder returning channel of the working head communicates with the upper port of the powder screening machine through one section of the powder returning pipe;

[0018] The powder screening machine is used to filter and screen the returned powder, so that only the powder with a particle size meeting the requirements can pass through;

[0019] The lower port of the powder screening machine communicates with the upper port of the powder returning bin through one section of the powder returning pipe;

[0020] The lower port of the powder returning bin communicates with the powder feeder through one section of the powder returning pipe, and a powder returning power device is arranged in the powder returning bin, which is used to generate negative pressure to collect the powder at the lower end of the powder returning channel and return the screened powder to the powder feeder.

[0021] In some embodiments, the powder returning pipe between the powder returning channel of the working head and the powder screening machine is divided into two branches, and the two branches of the powder returning pipe are symmetrically arranged;

[0022] The end of the powder feeding pipe close to the working head is located between the two branches of the powder returning pipe.

[0023] In some embodiments, a closable dust discharging port is arranged on the powder screening machine.

[0024] In some embodiments, the lower end of the powder feeding channel of the working head is inwardly narrowed to form a spray head structure.

[0025] Compared with the prior art, the laser cladding recycling device provided by the utility model can automatically recycle the splashed cladding powder in the laser cladding process in real time, save research and development materials, reduce cladding cost, improve the environment of workers, and reduce the harm of powder splashing to cladding personnel; and the laser cladding recycling device has low design cost, stable work, and is easy to realize. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 A schematic view of the laser cladding recycling device provided by the utility model;

[0027] Fig. 2 Another perspective view of the laser cladding recycling device;

[0028] Fig. 3 A cross-sectional view of the laser cladding recycling device.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, work head; 2, powder return channel; 3, powder feeding channel; 4, laser head; 5, powder feeder; 6, powder feeding pipe; 7, powder return pipe; 8, powder screening machine; 9, powder return bin. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the following will further describe how the present application is implemented in combination with the drawings and specific embodiments.

[0032] Referring to Figs. 1-3 In one embodiment, the present application provides a laser cladding recycling device, which comprises a work head 1; the shell of the work head 1 is in the shape of a downward-facing trumpet mouth, and inside the shell of the work head 1, a powder return channel 2, a powder feeding channel 3 and a laser head 4 are sequentially arranged from outside to inside; the powder return channel 2 and the powder feeding channel 3 are separated by the outer wall of the powder feeding channel 3; the powder feeding channel 3 is used to provide an outward airflow to feed out the powder; the powder return channel 2 is used to provide negative pressure to recycle the powder; the laser head 4 is used to generate laser and cooperate with the powder fed out by the powder feeding channel 3 to realize laser cladding.

[0033] The present application automatically recycles the splashed cladding powder in the laser cladding process, thereby saving research and development materials and reducing cladding cost.

[0034] Preferably, the laser cladding recycling device further comprises a powder feeder 5, a powder feeding pipe 6 and a powder return pipe 7; in the work head 1, the upper end of the powder feeding channel 3 is in communication with one end of the powder feeding pipe 6, and the upper end of the powder return channel 2 is in communication with one end of the powder return pipe 7; the other ends of the powder feeding pipe 6 and the powder return pipe 7 are both in communication with the powder feeder 5; the powder feeder 5 is used to feed the powder to the powder feeding channel 3 of the work head 1 through the gas-borne powder feeding mode, and collect the powder recycled from the powder return pipe 7.

[0035] Preferably, the laser cladding recycling device further comprises a powder screening machine 8 and a powder returning bin 9; the powder returning pipe 7 is divided into multiple sections, and the powder returning channel 2 of the working head 1 is connected to the upper port of the powder screening machine 8 through a section of the powder returning pipe 7; the powder screening machine 8 is used for filtering and screening the recycled powder, so that only the powder with a particle size meeting the requirements can pass through; the lower port of the powder screening machine 8 is connected to the upper port of the powder returning bin 9 through a section of the powder returning pipe 7; the lower port of the powder returning bin 9 is connected to the powder feeder 5 through a section of the powder returning pipe 7, and the powder returning bin 9 is provided with a powder returning power device for generating negative pressure to recycle the powder at the lower end of the powder returning channel 2 and return the screened powder to the powder feeder 5.

[0036] The powder screening machine 8 is used for filtering the recycled powder, so that the splashed powder with a large particle size is removed, the utilization rate of the splashed powder is improved, the powder cleaning process is accelerated, and the time cost is saved.

[0037] Preferably, the powder returning pipe 7 between the powder returning channel 2 of the working head 1 and the powder screening machine 8 is divided into two branches, and the two branches of the powder returning pipe 7 are symmetrically arranged; and the end of the powder feeding pipe 6 close to the working head 1 is located between the two branches of the powder returning pipe 7.

[0038] Preferably, the lower end of the powder feeding channel 3 of the working head 1 is narrowed inward to form a nozzle structure.

[0039] During laser cladding, the powder feeder 5 sends the powder to the nozzle structure at the end of the powder feeding channel 3 through the powder feeding pipe 6 and the powder feeding channel 3, generates laser in combination with the laser head 4, melts the sprayed powder onto the surface of the plate 50; during the laser cladding process, the splashed powder is recycled through the powder returning channel 2, and then is filtered through the powder screening machine 8 through the two branches of the powder returning pipe 7 to remove the splashed powder with a large particle size; the filtered powder returns to the powder feeder 5 through the powder returning bin 9 and the powder returning pipe 7, so that recycling is realized, the utilization rate and the recovery rate of the powder are improved, and sustainable and green development is promoted.

[0040] In summary, the laser cladding recycling device can automatically recycle the splashed cladding powder in the laser cladding process in real time, save research and development materials, reduce cladding costs, improve the environment of the workers, and reduce the harm of the splashed powder to the cladding personnel; and the laser cladding recycling device has low design cost, stable work, and is easy to realize.

[0041] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A laser cladding recycling apparatus, characterized by, The utility model provides a laser cladding head, comprising a working head (1); The shell of the working head (1) is in the shape of a downward trumpet mouth, and in the shell of the working head (1), a powder returning channel (2), a powder feeding channel (3) and a laser head (4) are sequentially arranged from outside to inside; The powder returning channel (2) and the powder feeding channel (3) are separated by the outer wall of the powder feeding channel (3); The powder feeding channel (3) is used for providing an outward airflow to feed out powder; The powder returning channel (2) is used for providing a negative pressure to recycle powder; The laser head (4) is used for generating laser and cooperating with the powder fed out by the powder feeding channel (3) to realize laser cladding.

2. The laser cladding recycling device of claim 1, wherein, The utility model further comprises a powder feeder (5), a powder feeding pipe (6) and a powder returning pipe (7); In the working head (1), the upper end of the powder feeding channel (3) is in communication with one end of the powder feeding pipe (6), and the upper end of the powder returning channel (2) is in communication with one end of the powder returning pipe (7); The other ends of the powder feeding pipe (6) and the powder returning pipe (7) are both in communication with the powder feeder (5); The powder feeder (5) is used for feeding powder to the powder feeding channel (3) of the working head (1) through the powder feeding pipe (6) by means of air-borne powder feeding and collecting the recycled powder from the powder returning pipe (7).

3. The laser cladding recycling device of claim 2, wherein, The utility model further comprises a powder screening machine (8) and a powder returning bin (9); The powder returning pipe (7) is divided into multiple sections, and the powder returning channel (2) of the working head (1) is in communication with the upper port of the powder screening machine (8) through one section of the powder returning pipe (7); The powder screening machine (8) is used for filtering and screening the recycled powder, so that only powder with a particle size meeting the requirements can pass through; The lower port of the powder screening machine (8) is in communication with the upper port of the powder returning bin (9) through one section of the powder returning pipe (7); The lower port of the powder returning bin (9) is in communication with the powder feeder (5) through one section of the powder returning pipe (7), and the powder returning bin (9) is provided with a powder returning power device for generating a negative pressure to recycle powder at the lower end of the powder returning channel (2) and return the screened powder to the powder feeder (5).

4. The laser cladding recycling device of claim 3, wherein, The powder returning pipe (7) between the powder returning channel (2) of the working head (1) and the powder screening machine (8) is divided into two branches, and the two branches of the powder returning pipe (7) are symmetrically arranged; The end of the powder feeding pipe (6) close to the working head (1) is located between the two branches of the powder returning pipe (7).

5. The laser cladding recycling device of claim 3, wherein, An ash discharge port that can be opened and closed is formed in the powder screening machine (8).

6. The laser cladding recycling device of claim 1, wherein, The lower end of the powder feeding channel (3) of the working head (1) is inwardly narrowed to form a nozzle structure.

Images