Laser cladding device for repairing cracks

Abstract

The embodiment of the utility model discloses a laser cladding device for repairing cracks in the technical field of laser cladding. When the width of the crack is reduced, the crack extrudes a first arc-shaped plate, so that the first arc-shaped plate extrudes a second arc-shaped plate, and when the second arc-shaped plate deforms and the width of the crack is increased, the second arc-shaped plate is reset to push the first arc-shaped plate, and then bristles II are driven to be attached to the inner wall of the crack; a plurality of second bristles used for being matched with the first bristles to clean the crack are installed on the outer wall of the first arc-shaped plate, through the arrangement of the first arc-shaped plate and the second arc-shaped plate, the second bristles are attached to the side wall of the crack all the time, the side wall of the crack is cleaned, and when the first cleaning assembly cleans the crack, the air pump is started, and the first cleaning assembly cleans the crack. Air flows towards a hole cavity of the ventilation hole through the air inlet hole and the connecting pipe and finally blows towards the first cleaning assembly through the air outlet hole, impurities cleared out by the first cleaning assembly are blown out of the crack by wind, and the laser head can conduct repairing conveniently.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of laser cladding, and in particular to a laser cladding device for repairing cracks. Background Art

[0002] Laser cladding, also known as laser melting or laser cladding, is a new surface modification technology. It obtains a high-strength metallurgical bonding layer between the substrate and the cladding material through high-density laser beam scanning. It can significantly improve the wear and corrosion resistance of the workpiece while strengthening the surface of the substrate material. It has a very broad application prospect.

[0003] For example, the laser cladding equipment and method for component repair disclosed in Chinese patent application number CN202210417282.X has the following specific contents: the contact force between the ceramic guide and one side of the crack can be obtained through a six-dimensional force sensor. After data analysis, the motion compensation in the Y and Z directions of the cladding process can be accurately adjusted in real time to overcome the problem that the laser cladding repair path easily deviates from the direction of the crack. At the same time, programming the robot path program only needs to fit the direction of the crack, which solves the problem of requiring a large number of programming path teaching points to completely fit the crack trajectory. Combined with the six-axis robot system, coaxial powder feeding laser cladding device, weld guidance system, and PLC overall control system in this device, the laser cladding repair process of gas turbine impeller blades is realized with precise guidance, high-efficiency cladding, and intelligent operation. It has the following technical problems:

[0004] When cracks appear in downhole tools, impurities are easily accumulated in the cracks. Impurities that are not cleaned up during laser cladding will make it difficult for the melted metal alloy powder to be firmly deposited on the surface of the substrate, making it difficult to repair the cracks in the tool. It is impossible to clean the impurities in the cracks, which ultimately affects the crack repair effect. Utility Model Content

[0005] To this end, an embodiment of the utility model provides a laser cladding device for repairing cracks, so as to solve the problem in the prior art that impurities in the cracks affect the crack repair effect.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0007] A laser cladding device for repairing cracks, comprising a limiting device for repairing the cracks;

[0008] A six-axis robot body for controlling the movement of the limiting device is installed at the upper end of the limiting device, and a guide device for cleaning the cracks is installed at the lower end of one side of the limiting device.

[0009] The limiting device comprises a first mounting block, and the first mounting block comprises a laser head for repairing cracks.

[0010] The guide device includes a guide rod for guiding the laser head, and the guide device includes a cleaning component 1 for cooperating with the guide rod to clean the cracks. The upper end of the cleaning component 1 is equipped with a guide plate for cooperating with the guide rod to limit the cleaning component 1.

[0011] The cleaning component 1 includes a cone, and bristles 1 are installed at the bottom of the cone. The cleaning component 1 includes a cleaning component 2 for cleaning the cracks in cooperation with the bristles 1.

[0012] Furthermore, a mounting seat is installed at one end of the six-axis robot body, and a plurality of threaded holes are opened in the middle of the mounting seat.

[0013] Furthermore, a connection plate is installed at the upper end of the first mounting block, and a plurality of bolts for cooperating with threaded holes to limit the position of the first mounting block are installed in the middle of the connection plate.

[0014] Furthermore, a second mounting block for limiting the laser head is installed at the upper end of the laser head, and the second mounting block is installed on one side of the first mounting block, and a limiting block 1 for limiting the guide rod is installed at the lower end of the first mounting block.

[0015] Furthermore, the guide rod includes a rod body, the upper end of the rod body is equipped with a limit column for cooperating with a limit block to support and limit the rod body, the middle part of the rod body is provided with an air vent for gas circulation, the upper end of the rod body is equipped with a connecting pipe for cooperating with an air pump to transport gas to the inside of the air vent, and the bottom of the rod body is provided with an air outlet.

[0016] Furthermore, a limit plate 1 and a limit plate 2 are installed in the middle of the rod body, a spring for pushing the guide plate is sleeved in the middle of the rod body, and the spring is located between the limit plate 1 and the limit plate 2, and a sliding plate for limiting the guide plate is installed at the lower end of the spring.

[0017] Furthermore, the guide plate includes a plate body, a connecting rod is installed at the lower end of the plate body, a connecting block 2 for limiting the cleaning component 1 is installed at the lower end of the connecting rod, a connecting block 1 is installed at the upper end of the plate body, a limiting block 2 is installed at the upper end of the connecting block 1, and a rolling ball is installed at the upper end of the limiting block 2.

[0018] Furthermore, a connecting block three is installed at the upper end of the cleaning component one, and a limiting block three is installed at the upper end of the connecting block three for cooperating with the connecting block two to limit the cone.

[0019] Furthermore, the cleaning component 2 includes a first arc plate, a second arc plate is installed on the upper end of the first arc plate, and the first arc plate and the second arc plate are arc-shaped spring plates, and the outer wall of the first arc plate is installed with a plurality of bristles 2 for cooperating with a pair of bristles to clean cracks.

[0020] The utility model embodiment has the following advantages:

[0021] 1. When the width of the crack decreases, the crack squeezes the first arc plate, so that the first arc plate squeezes the second arc plate, causing the second arc plate to deform. When the width of the crack increases, the second arc plate resets to push the first arc plate, thereby driving the bristles 2 to fit the inner wall of the crack. The outer wall of the first arc plate is equipped with a plurality of bristles 2 for cooperating with the bristles 1 to clean the crack. Through the arrangement of the first arc plate and the second arc plate, the bristles 2 are always in contact with the side wall of the crack to clean the side wall of the crack.

[0022] 2. When the depths of the cracks are different, the spring is set to push the guide plate downward, and the guide plate pushes the cleaning component downward, thereby driving the cleaning component to move up and down inside the crack, and the bristles clean the bottom of the crack, so that the cleaning component can fully clean the crack.

[0023] 3. When cleaning component 1 to clean the cracks, the air pump starts, and the gas flows through the air inlet and the connecting pipe to the cavity of the vent, and finally blows toward the direction of cleaning component 1 through the air outlet. The impurities cleaned by cleaning component 1 are blown out of the cracks by the wind, making it easier for the laser head to be repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a connection diagram of the limit device and the guide device of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the guide device of the utility model;

[0029] Figure 4 This is a schematic diagram of the connection between the sliding plate and the guide plate of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the cleaning component 1 of the utility model;

[0031] Figure 6 It is a structural schematic diagram of the cleaning component 2 of the utility model.

[0032] In the figure: 100-six-axis robot body, 110-mounting seat, 111-threaded hole;

[0033] 001-Limiting device;

[0034] 200-first mounting block, 210-connecting plate, 211-bolt, 220-air inlet hole, 230-laser head, 231-second mounting block, 240-limiting block 1;

[0035] 002-Guide device;

[0036] 300-guide rod, 310-rod body, 311-vent, 312-limiting column, 313-limiting plate 1, 314-sliding plate, 315-air outlet, 316-limiting plate 2, 320-connecting pipe, 330-spring;

[0037] 400-guide plate, 410-plate body, 411-connecting block 1, 412-limiting block 2, 413-rolling ball, 420-connecting rod, 421-connecting block 2;

[0038] 500 - cleaning component one, 510 - cone, 511 - bristle one, 520 - connecting block three, 521 - limiting block three, 530 - cleaning component two, 531 - first arc plate, 532 - second arc plate, 533 - bristle two. DETAILED DESCRIPTION

[0039] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0041] See also Figure 1-Figure 6 , the utility model provides a laser cladding device for repairing cracks.

[0042] A six-axis robot body 100 is installed at the upper end of the limiting device 001 to facilitate controlling the limiting device 001 to move at multiple angles. A mounting seat 110 is installed at one end of the six-axis robot body 100, and a plurality of threaded holes 111 are opened in the middle of the mounting seat 110.

[0043] The limiting device 001 includes a first mounting block 200, and a connecting plate 210 is fixedly installed on the upper end of the first mounting block 200. A plurality of bolts 211 for cooperating with threaded holes 111 to limit the first mounting block 200 are installed in the middle of the connecting plate 210. When the limiting device 001 is installed, the connecting plate 210 is fixed to the mounting seat 110 by the bolts 211, so that the mounting seat 110 can drive the limiting device 001 and the guide device 002 to move.

[0044] The first mounting block 200 includes a laser head 230 for repairing cracks, a second mounting block 231 for limiting the laser head 230 is fixedly installed on the upper end of the laser head 230, and the second mounting block 231 is fixedly installed on one side of the first mounting block 200, a limiting block 240 for limiting the guide rod 300 is fixedly installed on the lower end of the first mounting block 200, and a cavity a for limiting the limiting column 312 is opened in the middle of the limiting block 240, and the limiting column 312 can rotate in the cavity a.

[0045] A guide device 002 for cleaning the crack is installed at the lower end of one side of the limiting device 001. The guide device 002 includes a guide rod 300 for guiding the laser head 230. Under the action of the six-axis robot body 100, the bottom of the guide rod 300 is always inside the crack. When the six-axis robot body 100 cooperates with the first mounting block 200 to drive the guide rod 300 to move in the crack, the cleaning component 1 500 first cleans the crack, and guides the laser head 230 by sliding the guide rod 300 in the crack, so that the laser head 230 repairs the cleaned crack.

[0046] The guide rod 300 includes a rod body 310, and a limit column 312 is fixedly installed on the upper end of the rod body 310 for supporting and limiting the rod body 310 in cooperation with the limit block 240. A vent hole 311 for gas circulation is provided in the middle of the rod body 310, and a connecting pipe 320 for cooperating with the air pump to transport gas to the inside of the vent hole 311 is installed on the upper end of the rod body 310. An air outlet hole 315 is provided at the bottom of the rod body 310. The air pump is installed inside the first mounting block 200, and an air inlet hole 220 is provided at the upper end of the first mounting block 200. When the cleaning component 500 cleans the crack, the air pump is started, and the gas flows to the cavity of the vent hole 311 through the air inlet hole 220 and the connecting pipe 320, and finally blows toward the direction of the cleaning component 500 through the air outlet hole 315. The impurities cleaned out by the cleaning component 500 are blown out of the crack by the wind, which is convenient for the laser head 230 to be repaired.

[0047] The middle of the rod body 310 is fixedly installed with a limit plate 1 313 and a limit plate 2 316. The middle of the rod body 310 is sleeved with a spring 330 for pushing the guide plate 400 downward, and the spring 330 is between the limit plate 1 313 and the limit plate 2 316. The lower end of the spring 330 is installed with a sliding plate 314 for limiting the guide plate 400. The interior of the sliding plate 314 is provided with an annular groove cavity for sliding of the connecting block 1 411, the limit block 2 412 and the rolling ball 413. When the depth of the crack is different, the spring 330 is set to push the guide plate 400 downward, and the guide plate 400 pushes the cleaning component 1 500 downward, thereby driving the cleaning component 1 500 to move up and down inside the crack, and the bristles 1 511 clean the bottom of the crack, so that the cleaning component 1 500 can fully clean the crack.

[0048] A guide plate 400 for cooperating with the guide rod 300 to limit the cleaning component 500 is installed at the upper end of the cleaning component 500, and the guide plate 400 includes a plate body 410, and the plate body 410 is located between the sliding plate 314 and the limiting plate 316. A connecting rod 420 is fixedly installed at the lower end of the plate body 410, and a connecting block 421 for limiting the cleaning component 500 is installed at the lower end of the connecting rod 420. A connecting block 411 is fixedly installed at the upper end of the plate body 410, and a limiting block 412 is fixedly installed at the upper end of the connecting block 411, and a rolling ball 413 is fixedly installed at the upper end of the limiting block 412. When the crack has an arc, it is convenient for the plate body 410 to drive the connecting block 411 and the limiting block 412 to slide in the internal groove cavity of the sliding plate 314, and the arrangement of the rolling ball 413 facilitates the rotation of the plate body 410.

[0049] The guide device 002 includes a cleaning assembly 500 for cleaning the cracks in cooperation with the guide rod 300. The cleaning assembly 500 includes a cone 510, and a bristle 511 is fixedly installed at the bottom of the cone 510. A connection block 520 is fixedly installed at the upper end of the cleaning assembly 500. A limit block 521 is fixedly installed at the upper end of the connection block 520 for limiting the cone 510 in cooperation with the connection block 421. A groove cavity for limiting the limit block 521 is provided inside the connection block 421, and the limit block 521 can rotate in the groove cavity.

[0050] The cleaning assembly 1 500 includes a cleaning assembly 2 530 for cleaning the cracks in cooperation with the bristle 1 511, and a plurality of cleaning assemblies 2 530 are provided, all of which are installed on the outer wall of the cone 510. The cleaning assembly 2 530 includes a first arc plate 531, and a second arc plate 532 is fixedly installed on the upper end of the first arc plate 531, and the first arc plate 531 and the second arc plate 532 are arc springs.

[0051] When the width of the crack decreases, the crack squeezes the first arc plate 531, causing the first arc plate 531 to squeeze the second arc plate 532, causing the second arc plate 532 to deform. When the width of the crack increases, the second arc plate 532 resets to push the first arc plate 531, thereby driving the bristles 2 533 to fit against the inner wall of the crack. The outer wall of the first arc plate 531 is equipped with a plurality of bristles 533 for cooperating with the bristles 1 511 to clean the crack. Through the arrangement of the first arc plate 531 and the second arc plate 532, the bristles 2 533 are always in contact with the side wall of the crack to clean the side wall of the crack.

[0052] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A laser cladding device for repairing cracks, comprising a limiting device (001) for repairing cracks, characterized in that: A six-axis robot body (100) is installed at the upper end of the limiting device (001) for controlling the movement of the limiting device (001), and a guide device (002) for cleaning the crack is installed at the lower end of one side of the limiting device (001); The limiting device (001) comprises a first mounting block (200), and the first mounting block (200) comprises a laser head (230) for repairing cracks; The guide device (002) comprises a guide rod (300) for guiding the laser head (230), the guide device (002) comprises a cleaning component (500) for cooperating with the guide rod (300) to clean the crack, and a guide plate (400) is installed at the upper end of the cleaning component (500) for cooperating with the guide rod (300) to limit the position of the cleaning component (500); The cleaning component 1 (500) comprises a cone (510), a brush 1 (511) is installed at the bottom of the cone (510), and the cleaning component 1 (500) comprises a cleaning component 2 (530) for cooperating with the brush 1 (511) to clean the cracks.

2. A laser cladding device for repairing cracks according to claim 1, characterized in that: A mounting seat (110) is installed at one end of the six-axis robot body (100), and a plurality of threaded holes (111) are provided in the middle of the mounting seat (110).

3. A laser cladding device for repairing cracks according to claim 2, characterized in that: A connection plate (210) is installed at the upper end of the first installation block (200), and a plurality of bolts (211) for cooperating with the threaded holes (111) to limit the position of the first installation block (200) are installed in the middle of the connection plate (210).

4. The laser cladding device for repairing cracks according to claim 1, characterized in that: A second mounting block (231) for limiting the position of the laser head (230) is mounted on the upper end of the laser head (230), and the second mounting block (231) is mounted on one side of the first mounting block (200), and a limiting block 1 (240) for limiting the position of the guide rod (300) is mounted on the lower end of the first mounting block (200).

5. A laser cladding device for repairing cracks according to claim 4, characterized in that: The guide rod (300) comprises a rod body (310), the upper end of the rod body (310) is provided with a limiting column (312) for cooperating with a limiting block (240) to support and limit the rod body (310), the middle of the rod body (310) is provided with a vent hole (311) for gas circulation, the upper end of the rod body (310) is provided with a connecting pipe (320) for cooperating with an air pump to transport gas to the inside of the vent hole (311), and the bottom of the rod body (310) is provided with an air outlet hole (315).

6. The laser cladding device for repairing cracks according to claim 5, characterized in that: A first limiting plate (313) and a second limiting plate (316) are installed in the middle of the rod body (310); a spring (330) for pushing the guide plate (400) is sleeved in the middle of the rod body (310), and the spring (330) is located between the first limiting plate (313) and the second limiting plate (316); a sliding plate (314) for limiting the guide plate (400) is installed at the lower end of the spring (330).

7. The laser cladding device for repairing cracks according to claim 1, characterized in that: The guide plate (400) comprises a plate body (410), a connecting rod (420) being mounted at the lower end of the plate body (410), a connecting block (421) for limiting the position of the cleaning component (500) being mounted at the lower end of the connecting rod (420), a connecting block (411) being mounted at the upper end of the plate body (410), a limiting block (412) being mounted at the upper end of the connecting block (411), and a rolling ball (413) being mounted at the upper end of the limiting block (412).

8. The laser cladding device for repairing cracks according to claim 1, characterized in that: A connection block three (520) is installed at the upper end of the cleaning component one (500), and a limit block three (521) is installed at the upper end of the connection block three (520) for cooperating with the connection block two (421) to limit the cone (510).

9. The laser cladding device for repairing cracks according to claim 1, characterized in that: The cleaning component 2 (530) includes a first arc-shaped plate (531), a second arc-shaped plate (532) is installed on the upper end of the first arc-shaped plate (531), and the first arc-shaped plate (531) and the second arc-shaped plate (532) are arc-shaped spring pieces, and a plurality of bristles 2 (533) for cooperating with bristles 1 (511) to clean cracks are installed on the outer wall of the first arc-shaped plate (531).

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