Ultrahigh-speed laser cladding paraxial powder feeding device

Abstract

The utility model discloses an ultra-high-speed laser cladding paraxial powder feeding device which comprises a mounting pipe, a plurality of groups of first powder feeding channels are uniformly arranged at the top of the outer side of the mounting pipe, a plurality of groups of second powder feeding channels are uniformly arranged at the bottom of the outer side of the mounting pipe, and a plurality of groups of heat dissipation plates are uniformly arranged in the middle of the outer side of the mounting pipe; according to the powder feeding device, the first powder feeding channels, the second powder feeding channels, the annular channel and the powder outlet channel are matched, powder feeding is carried out through the multiple sets of first powder feeding channels and second powder feeding channels in the powder feeding process, the powder feeding efficiency is greatly improved, meanwhile, the diameters of the first powder feeding channels and the powder outlet channel are gradually reduced, and the powder feeding efficiency is greatly improved in the powder feeding process. According to the powder feeding device, the powder feeding speed can be increased, the powder discharging position can be more concentrated after powder discharging, then powder can be more evenly distributed on the surface of an object, meanwhile, the powder moving time can be prolonged under the annular effect of the annular channel, and the powder can be heated for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-high-speed laser cladding processing, in particular to an ultra-high-speed laser cladding side-axis powder feeding device. Background Art

[0002] During the processing of some objects, special processes are needed to coat their surfaces, while general metal sheets need to be processed by laser cladding and thermal spraying.

[0003] The existing authorization publication number is "CN217809670U", which is an ultra-high-speed laser cladding powder feeding device, including a powder melting bin and a laser cladding head located above the powder melting bin; the top of the powder melting bin is provided with a shielding gas inlet connected to the shielding gas outlet of the shielding gas bin; the side of the powder melting bin is provided with a powder feeding pipeline near the top. The utility model places the powder feeding pipeline on the side of the powder melting bin near the top, which can make the heating distance of powder particles with low absorption rate longer, the heating is more sufficient, and the heating effect is better. In addition, the laser and the powder are fused in the powder melting bin, and there is a long distance from the substrate, so that the powder has sufficient time to heat up and the cladding effect is better. Moreover, in the powder melting bin, the flow rate of the shielding gas is relatively fast, which can play a good role in rectification.

[0004] However, during the processing, although the powder feeding distance is lengthened, the overall length of the device is also increased, which increases the cost of the device. In addition, the device is often in a high temperature state, which makes the device very easy to damage and requires frequent replacement. The increase in its length also greatly increases the processing cost. Utility Model Content

[0005] The utility model aims to provide an ultra-high-speed laser cladding side-axis powder feeding device to solve the existing problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-high-speed laser cladding paraxial powder feeding device, comprising a mounting tube, a plurality of first powder feeding channels are evenly arranged on the top of the outer side of the mounting tube, a plurality of second powder feeding channels are evenly arranged on the bottom of the outer side of the mounting tube, a plurality of heat sinks are evenly arranged in the middle of the outer side of the mounting tube, a laser channel is arranged on the top of the mounting tube, a first water-cooled heat sink is arranged at a non-center position of the bottom of the mounting tube, a liquid inlet pipe is arranged on one side of the first water-cooled heat sink, a liquid outlet pipe is arranged on the other side of the first water-cooled heat sink, connecting pipes are symmetrically arranged on both sides of the first water-cooled heat sink, a second water-cooled heat sink is arranged between the two groups of connecting pipes, a processing head is arranged at the bottom of the mounting tube, an annular channel is arranged inside the processing head, the annular channel is communicated with the first powder feeding channel, and a powder outlet channel is arranged at the bottom of the annular channel.

[0007] Preferably, an annular groove is provided in the middle of the outer side of the mounting tube, and the heat sink is located inside the annular groove, so as to facilitate the installation of the heat sink.

[0008] Preferably, through holes are provided on both sides of the bottom of the outer side of the installation tube, and the liquid inlet pipe and the liquid outlet pipe are extended to the outside of the installation tube to facilitate connection with external devices.

[0009] Preferably, the bottoms of the first powder feeding channel and the second powder feeding channel are connected to each other, and the first powder feeding channel and the second powder feeding channel are connected to the annular channel, so as to facilitate the transportation of powder.

[0010] Preferably, the diameter of the powder outlet channel decreases from top to bottom, and the bottom of the powder outlet channel is connected to the bottom of the mounting pipe, thereby increasing the speed of powder conveying and making the sprayed powder more concentrated.

[0011] Preferably, a mounting groove is provided at the bottom of the mounting tube, and the first water-cooled heat sink and the second water-cooled heat sink are both moved into the mounting groove to reduce the difficulty of installation.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the ultra-high-speed laser cladding side-axis powder feeding device;

[0013] Through the cooperation of the first powder feeding channel, the second powder feeding channel, the annular channel and the powder outlet channel, multiple groups of the first powder feeding channels and the second powder feeding channels are used to feed powder during the powder feeding process, which greatly improves the powder feeding efficiency. At the same time, the diameters of the first powder feeding channel and the powder outlet channel are gradually reduced from large to small. During the powder feeding process, the powder feeding speed can be increased, and the powder outlet position can be made more concentrated after the powder is discharged, so that the powder can be more evenly distributed on the surface of the object. At the same time, under the action of the annular shape of the annular channel, the powder movement time can be extended, so that the powder can be heated for a long time. In the process of processing, through the cooperation of the heat sink, the first water-cooled heat sink, the liquid inlet pipe, the second water-cooled heat sink, the connecting pipe and the liquid outlet pipe, the powder feeding device can be cooled in multiple directions, thereby avoiding overheating of the device and increasing the life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the utility model;

[0016] Figure 3 It is the front view of the utility model;

[0017] Figure 4 This is a bottom view of the installation pipe of the utility model;

[0018] Figure 5It is a circular road diagram of the present utility model.

[0019] In the figure: 1. Installation tube; 2. Laser channel; 3. First powder feeding channel; 4. Heat sink; 5. Second powder feeding channel; 6. Powder outlet channel; 7. Ring channel; 8. Processing head; 9. First water-cooled heat sink; 10. Liquid inlet pipe; 11. Second water-cooled heat sink; 12. Connecting pipe; 13. Liquid outlet pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The embodiment provided by the utility model is an ultra-high-speed laser cladding side-axis powder feeding device, comprising a mounting tube 1, a plurality of first powder feeding channels 3 are evenly arranged on the top of the outer side of the mounting tube 1, a plurality of second powder feeding channels 5 are evenly arranged on the bottom of the outer side of the mounting tube 1, a plurality of heat sinks 4 are evenly arranged in the middle of the outer side of the mounting tube 1, an annular groove is arranged in the middle of the outer side of the mounting tube 1, the heat sink 4 is located inside the annular groove, and it is convenient to install the heat sink 4, a laser channel 2 is arranged on the top of the mounting tube 1, a first water-cooled heat sink 9 is arranged at a non-center position of the bottom of the mounting tube 1, a liquid inlet pipe 10 is arranged on one side of the first water-cooled heat sink 9, a liquid outlet pipe 13 is arranged on the other side of the first water-cooled heat sink 9, through holes are arranged on both sides of the bottom of the outer side of the mounting tube 1, and the liquid inlet pipe 10 and the liquid outlet pipe 13 are extended to the outside of the mounting tube 1 through holes, which is convenient for connecting with the outside The device is connected, connecting pipes 12 are symmetrically arranged on both sides of the first water-cooled heat sink 9, and a second water-cooled heat sink 11 is arranged between the two groups of connecting pipes 12. A mounting groove is arranged at the bottom of the mounting tube 1, and the first water-cooled heat sink 9 and the second water-cooled heat sink 11 are both displaced inside the mounting groove to reduce the difficulty of installation. A processing head 8 is arranged at the bottom of the mounting tube 1, and an annular channel 7 is arranged inside the processing head 8. The bottoms of the first powder feeding channel 3 and the second powder feeding channel 5 are connected to each other, and the first powder feeding channel 3 and the second powder feeding channel 5 are connected to the annular channel 7 to facilitate the transportation of powder. The annular channel 7 is connected to the first powder feeding channel 3, and a powder outlet channel 6 is arranged at the bottom of the annular channel 7. The diameter of the powder outlet channel 6 is reduced from top to bottom, and the bottom of the powder outlet channel 6 is connected to the bottom of the mounting tube 1, which increases the speed of powder transportation and makes the sprayed powder more concentrated.

[0022] Working principle: During the use of the device, firstly, the first powder feeding channel 3 and the second powder feeding channel 5 are injected with powder, and then these powders are moved to the specified position and merged into the inside of the annular channel 7 and mixed, and then the annular structure of the processing head 8 extends its moving distance so that these powders are fully heated, and then these powders are melted and sprayed out from the powder outlet channel 6 to cover the surface of the object, and in the process of coating, the heat sink 4 absorbs the temperature of the mounting tube 1 and exchanges heat with the outside air to reduce the temperature of the mounting tube 1, and at the same time, the coolant circulates inside the first water-cooled heat sink 9 and the second water-cooled heat sink 11, thereby further reducing the temperature of the mounting tube 1 and increasing the service life of the mounting tube 1.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An ultra-high-speed laser cladding side-axis powder feeding device, comprising a mounting tube (1), characterized in that: A plurality of first powder delivery channels (3) are evenly arranged at the top of the outer side of the installation tube (1), a plurality of second powder delivery channels (5) are evenly arranged at the bottom of the outer side of the installation tube (1), a plurality of heat sinks (4) are evenly arranged in the middle of the outer side of the installation tube (1), a laser channel (2) is arranged at the top of the installation tube (1), a first water-cooled heat sink (9) is arranged at a non-center position of the bottom of the installation tube (1), a liquid inlet pipe (10) is arranged on one side of the first water-cooled heat sink (9), a liquid outlet pipe (13) is arranged on the other side of the first water-cooled heat sink (9), connecting pipes (12) are symmetrically arranged on both sides of the first water-cooled heat sink (9), and a second water-cooled heat sink (11) is arranged between the two groups of connecting pipes (12), a processing head (8) is arranged at the bottom of the installation tube (1), a ring channel (7) is arranged inside the processing head (8), the ring channel (7) is communicated with the first powder delivery channel (3), and a powder outlet channel (6) is arranged at the bottom of the ring channel (7).

2. The ultra-high-speed laser cladding off-axis powder feeding device according to claim 1, characterized in that: An annular groove is provided in the middle of the outer side of the mounting tube (1), and the heat dissipation plate (4) is located inside the annular groove.

3. The ultra-high-speed laser cladding off-axis powder feeding device according to claim 1, characterized in that: Through holes are provided on both sides of the bottom of the outer side of the installation tube (1), and the liquid inlet pipe (10) and the liquid outlet pipe (13) both extend to the outside of the installation tube (1).

4. The ultra-high-speed laser cladding off-axis powder feeding device according to claim 1, characterized in that: The bottoms of the first powder feeding channel (3) and the second powder feeding channel (5) are connected to each other, and the first powder feeding channel (3) and the second powder feeding channel (5) are connected to the annular channel (7).

5. The ultra-high-speed laser cladding off-axis powder feeding device according to claim 1, characterized in that: The diameter of the powder outlet channel (6) decreases from top to bottom, and the bottom of the powder outlet channel (6) is connected to the bottom of the installation pipe (1).

6. The ultra-high-speed laser cladding off-axis powder feeding device according to claim 1, characterized in that: The bottom of the mounting tube (1) is provided with a mounting groove, and the first water-cooled heat sink (9) and the second water-cooled heat sink (11) are both moved into the mounting groove.

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