Columnar material surface repairing system containing laser cladding

Abstract

The utility model provides a columnar material surface repairing system containing laser cladding, which comprises a welding module, a feeding module and an ultrasonic detection module, the welding module is in signal connection with the feeding module, and the ultrasonic detection module is electrically connected with the welding module and the feeding module; the feeding module comprises a distributor and a nozzle, the distributor comprises a cylindrical distributing cavity, a plurality of distributing columns are arranged in the cylindrical distributing cavity in a staggered mode, three petal-shaped discharging chambers are arranged at the bottom end of the cylindrical distributing cavity, the outlet ends of the discharging chambers are in butt joint with the nozzle, a discharging opening of the nozzle is of an annular structure, and an air valve is connected with the nozzle. When entering the distributor, powdery metal powder is uniformly scattered by the distributing column in the distributor and then enters the discharging chamber at the bottom end, and then an annular powder pile is sprayed out from the annular discharging opening of the nozzle, so that a welding layer with a high middle part and two low sides is prevented from being formed after welding, and the uniformity and stability of feeding are further improved; and meanwhile, the surface repairing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface repair technical field, concretely relates to a kind of columnar material surface repair system comprising laser cladding. BACKGROUND

[0002] With the increase of service life, or the influence of external environment, mechanical parts are prone to damage pits and corrosion rust spots on their surfaces, which leads to the failure of normal use of the parts. If the surface defects of the parts are repaired, the parts can be avoided from being directly scrapped. Laser cladding technology is a common surface repair method. After removing the damaged parts of the surface of the parts, the powder material is melted and supplemented in the damaged area by laser. After cladding, the surface of the cladded part is processed to meet the surface roughness requirement of the part, and thus the surface repair of the part is completed. The existing surface repair system has the following problems when processing the parts: the powder material is not uniformly discharged, which leads to insufficient compactness of the surface after cladding, or excessive accumulation of cladding material in local area, which not only affects the quality of repair, but also causes waste of repair material and increases the strength of subsequent repair mark processing. SUMMARY

[0003] The utility model provides a kind of columnar material surface repair system comprising laser cladding, the structure of auxiliary support is optimized to solve the technical problems in the foregoing background.

[0004] The technical scheme of the utility model is as follows:

[0005] A kind of columnar material surface repair system comprising laser cladding, comprising welding module and feed module, the welding module is connected with the feed module signal, further comprising ultrasonic detection module, the ultrasonic detection module is connected with the welding module, the feed module is electrically connected;The feed module includes: distributor, nozzle, the distributor includes cylindrical distribution cavity, a plurality of distribution columns are staggered arranged in the cylindrical distribution cavity, the bottom end of the cylindrical distribution cavity is provided with three petal-shaped discharge chambers, the discharge chamber outlet end is connected with the nozzle, the nozzle discharge port is annular structure, and the air valve is connected with the nozzle.

[0006] Optionally, the welding module includes a drawer-type light splitting plate, the drawer-type light splitting plate includes a first light transmission zone, a second light transmission zone and a third light transmission zone, the light transmission surface of the first light transmission zone, the second light transmission zone and the third light transmission zone includes an oval shape and / or a rectangular shape.

[0007] Optionally, the feed module further includes a storage tank, and the storage tank is connected with the distributor through an adapter.

[0008] Optionally, the adapter includes a flow valve, and the flow valve is connected with the ultrasonic detection module.

[0009] Optionally, the ultrasonic detection module comprises a flaw detection mode, a distance measurement mode and a cladding layer detection mode.

[0010] Optionally, the mobile mechanism is arranged on the welding module, the feeding module and the ultrasonic detection module respectively, and the mobile mechanism comprises a translation mechanism and a rotation mechanism.

[0011] Optionally, the welding module comprises a first welding layer, a second welding layer and a third welding layer, the second welding layer is between the first welding layer and the third welding layer, and the first welding layer is concave.

[0012] The working principle and beneficial effects of the utility model are as follows:

[0013] The material surface repairing system comprises a welding module for laser welding, a feeding module for feeding, an ultrasonic detection module for ultrasonic detection and flaw detection; in the feeding module, a distributor and a nozzle are arranged, so that when the powdery metal powder enters the distributor, the metal powder is uniformly scattered by the distribution column in the distributor and then enters the bottom discharge chamber, and then the circular powder pile is sprayed from the annular discharge port of the nozzle, thereby avoiding the formation of the welding layer with the middle high and the two sides low after welding, and the uniformity and stability of the feeding during welding are increased through the joint action of the distribution column and the nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a partial schematic view of the columnar material surface repairing system comprising laser cladding provided by the utility model;

[0015] Figure 2 It is a top view structural schematic view of the light splitting plate in the embodiment of the utility model;

[0016] Figure 3 It is a sectional view schematic view of the welding layer of the welding module in the embodiment of the utility model;

[0017] Figure 4 It is a storage tank installation and structural schematic view arranged above the distributor in the embodiment of the utility model.

[0018] In the figure: 1, feeding module; 11, distributor; 111, distribution cavity; 1111, distribution column; 1112, discharge chamber; 12, nozzle; 13, storage tank; 131, flow valve; 2, drawer type light splitting plate; 21, first light transmission area; 22, second light transmission area; 23, third light transmission area; 3, welding module; 31, first welding layer; 32, second welding layer; 33, third welding layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present application.

[0020] With the increase of service life or the influence of external environment, mechanical parts are prone to have damaged pits and corroded rust spots on the surface, which causes the parts to be unable to be normally used. If the surface defects are repaired, the parts can be avoided from being directly scrapped. Laser cladding technology is a common surface repair method. After the damaged part of the surface of the part is removed, the powder material is melted and supplemented in the damaged area by laser. After the cladding, the surface of the cladding is treated to meet the surface roughness requirement of the part, and thus the surface repair of the part is completed. The existing surface repair system has the following problems in processing the parts: the powder material is not uniformly discharged, which causes the surface to be insufficiently dense after cladding, or the cladding material is excessively accumulated in the local area, which not only affects the repair quality, but also causes waste of the repair material and increases the strength of the subsequent repair trace treatment. Therefore, the present application provides a cylindrical material surface repair system comprising laser cladding, which will be described in detail below with reference to the accompanying drawings.

[0021] Please refer to the following drawings Figures 1 to 4 The present application provides a cylindrical material surface repair system comprising laser cladding, which comprises a welding module 3 and a feeding module 1. The welding module 3 is signal connected with the feeding module 1. The system further comprises an ultrasonic detection module, which is electrically connected with the welding module 3 and the feeding module 1. The feeding module 1 comprises a distributor 11 and a nozzle 12. The distributor 11 comprises a cylindrical distribution cavity 111, in which a plurality of distribution columns 111 are arranged in a staggered manner. The bottom end of the cylindrical distribution cavity 111 is provided with three petal-shaped discharge chambers 1112. The outlet end of the discharge chamber 1112 is connected with the nozzle 12. The discharge port of the nozzle 12 is in an annular structure, and a gas valve is connected with the nozzle 12.

[0022] Referring to Figure 1The material surface repairing system comprises a welding module 3 for laser welding and a feeding module 1 for feeding, an ultrasonic detection module for ultrasonic detection and ultrasonic flaw detection; wherein, in the feeding module 1, a distributor 11 and a nozzle 12 are arranged, so that when the powdery metal powder enters the distributor 11, the powder is uniformly scattered after passing through the distributing column 111 in the distributor 11 and then enters the bottom end of the discharge chamber 1112, and then the annular powder pile is sprayed out of the annular discharge port of the nozzle 12, thereby avoiding the formation of a welding layer with a high middle and low sides after welding, and the uniformity and stability of the feeding during welding are increased through the joint action of the distributing column 111 and the nozzle 12.

[0023] Specifically, first, the surface layer structure of the surface to be welded is detected by the ultrasonic detection module to determine the amount of powder required to be provided by each discharge chamber 1112; then, the number of welding layers required for welding is analyzed according to the detected data, the thickness of the welding layer is detected after single-layer welding is completed, and the density of the welding layer is detected, and if the conditions are met, the original set welding parameters (such as welding temperature, welding speed, feeding amount, etc.) are maintained during the next layer of welding, and if the conditions are not met, the welding parameters of the next layer of welding are adjusted to make up for the insufficient welding of the previous layer, and the welding is completed after repeating multiple times.

[0024] Among them, referring to Figure 2 The aforementioned welding module 3 comprises a drawer-type light splitting plate 2, the drawer-type light splitting plate 2 comprises a first light transmission area 21, a second light transmission area 22 and a third light transmission area 23, and the light transmission surfaces of the first light transmission area 21, the second light transmission area 22 and the third light transmission area 23 comprise an elliptical shape and / or a rectangular shape.

[0025] In the embodiment, the drawer-type light splitting plate 2 is arranged in the welding module 3, the light splitting plate is used for filtering a laser beam and controlling a welding spot, and the drawer-type structure facilitates the replacement of different light splitting plates for different welding surfaces, so as to improve the compatibility of the welding module 3. Among them, the first light transmission area 21, the second light transmission area 22 and the third light transmission area 23 are opposite to the annular powder pile, that is, the first light transmission area 21, the second light transmission area 22 and the third light transmission area 23 are distributed on the circumference in a triangular aggregation shape, and the light transmission surfaces on adjacent light transmission areas are communicated. Among them, the surface shape of the light transmission surface can be circular, or rectangular, or both, which needs to be adjusted according to the actual material to be welded and the parameter adaptability of the surface to be welded.

[0026] In addition, the aforementioned welding module 3 is provided with a first welding layer 31, a second welding layer 32, and a third welding layer 33, the second welding layer 32 is between the first welding layer 31 and the third welding layer 33, and the second welding layer is concave in the first welding layer 31. As shown in FIG. 3, the welding layer in contact with the body of the workpiece to be welded is the first welding layer 31, and because a part of the metal powder needs to be fused with the body of the workpiece to be welded, the amount of the metal powder added is relatively more than that of the other welding layers, so that a welding layer structure with a higher middle and a lower side is formed. The welding layer structure causes the first welding layer to contain a concave portion, so that in the second welding, the concave portion is first filled to form the second welding layer 32, and then the third welding layer 33 is formed by welding again on the basis of the first welding layer 31 and the second welding layer 32. Because of the adjustment of the welding parameters and the control parameters, the third welding layer 33 is a structure close to the surface level, which effectively reduces the waste caused by the accumulation of metal powder.

[0027] It should be noted that the aforementioned ultrasonic detection module includes a flaw detection mode, a distance measurement mode, and a cladding layer detection mode. The flaw detection mode is used to detect the damage part in the early stage of welding, analyze the material characteristics to determine the relevant welding parameters, and detect the compactness and other parameters of the welding layer after welding to ensure the welding quality. In addition, the distance measurement mode is used to detect the distance between the laser welding head and the surface damage of the workpiece to be processed, and the thickness of the welding layer (i.e., the first welding layer 31 or the second welding layer 32 and other welding layers). The cladding layer detection is used to detect the thickness of the laser melted body of the workpiece to be welded, which determines the firmness and stability of the connection between the welding layer and the body of the workpiece to be welded, and is very important for the cladding welding. High-precision detection is performed by using ultrasonic waves to accurately control the welding quality of the laser in this layer.

[0028] In some embodiments, as shown in FIG. 1, Figure 4 In some embodiments, as shown in FIG. 1,

[0029] In some embodiments, a moving mechanism is further included, which is respectively arranged on the welding module 3, the feeding module 1 and the ultrasonic detection module, and the moving mechanism comprises a translation mechanism and a rotation mechanism. The moving mechanism in the embodiment is used to flexibly control the position of the laser welding head in the welding module 3, so as to be compatible with the welding of the surfaces of the workpieces in different areas; meanwhile, the moving mechanism is arranged on the nozzle 12 in the feeding module 1, so as to flexibly control the position of the feeding material. In addition, the moving mechanism arranged on the ultrasonic detection module can expand the detection range of the detection mechanism. The specific structure of the moving mechanism in the embodiment is not specifically limited.

[0030] Finally, the utility model provides a kind of columnar material surface repair system containing laser cladding, including welding module 3 and feeding module 1, the welding module 3 with the feeding module 1 signal connection, still include ultrasonic detection module, the ultrasonic detection module with the welding module 3, the feeding module 1 electric connection;The feeding module 1 includes: distributor 11, nozzle 12, the distributor 11 includes cylindrical distribution cavity 111, several distribution columns 111 are staggered in the cylindrical distribution cavity 111, the bottom end of the cylindrical distribution cavity 111 is equipped with three petal-shaped discharge chamber 1112, the discharge chamber 1112 export end with the nozzle 12 butt joint, the nozzle 12 discharge port is annular structure, air valve is connected with the nozzle 12.The utility model improves the uniformity and stability of feeding, while improving the quality of surface repair.

[0031] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A columnar material surface repair system comprising a laser cladding, comprising a welding module (3) and a feed module (1), the welding module (3) being in signal connection with the feed module (1), characterized in that, Also include ultrasonic detection module, ultrasonic detection module with the welding module (3), the feed module (1) electric connection;The feed module (1) includes: distributor (11), nozzle (12), the distributor (11) includes cylindrical distribution cavity (111), several distribution columns (1111) are staggered in the cylindrical distribution cavity (111), the bottom end of the cylindrical distribution cavity (111) is provided with three petal-shaped discharge chamber (1112), the discharge chamber (1112) outlet end is butt joint with the nozzle (12), the nozzle (12) discharge port is annular structure, air valve is connected with the nozzle (12).

2. A columnar material surface repair system comprising laser cladding according to claim 1, characterized in that, The welding module (3) includes drawer type light splitting plate (2), the drawer type light splitting plate includes first light transmission area (21), second light transmission area (22), third light transmission area (23), the light transmission surface of the first light transmission area (21), the second light transmission area (22), the third light transmission area (23) includes oval, and / or, rectangular.

3. A columnar material surfaced repair system comprising laser cladding according to claim 2, characterized in that, The feed module (1) further includes storage tank (13), the storage tank (13) is connected with the distributor (11) through the adapter.

4. A columnar material surfaced repair system comprising laser cladding according to claim 3, characterized in that, The adapter includes flow valve (131), the flow valve (131) is connected with the ultrasonic detection module signal.

5. A columnar material surfaced repair system comprising laser cladding according to claim 3, wherein, The ultrasonic detection module includes: flaw detection mode, ranging mode, cladding layer detection mode.

6. A columnar material surfaced repair system comprising laser cladding according to claim 4, characterized in that, Also include mobile mechanism, the mobile mechanism is arranged in the welding module (3), the feed module (1), the ultrasonic detection module respectively, the mobile mechanism includes translation mechanism and rotation mechanism.

7. A columnar material surfaced repair system comprising laser cladding according to claim 1, characterized in that, The welding module (3) is according to first welding layer (31), second welding layer (32), third welding layer (33), the second welding layer (32) is between the first welding layer (31) and the third welding layer (33), and in the first welding layer (31) indentation.

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