CN213842048U - Turbine blade laser cladding detection device - Google Patents
Turbine blade laser cladding detection device Download PDFInfo
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- CN213842048U CN213842048U CN202022255029.8U CN202022255029U CN213842048U CN 213842048 U CN213842048 U CN 213842048U CN 202022255029 U CN202022255029 U CN 202022255029U CN 213842048 U CN213842048 U CN 213842048U
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Abstract
The utility model provides a steam turbine blade laser cladding detection device, it can be used for the detection in blade laser cladding district, and convenient to use, has guaranteed to melt and has covered the quality. The method comprises a cladding groove shape sample plate, a cladding area clamp repair sample plate and a cladding area thickness sample plate; the cladding groove shape template comprises a cladding groove profile measuring surface, and the cladding groove profile measuring surface corresponds to the cladding groove profile of the standard part; the cladding area clamp sample repairing plate comprises a first molded line positioning surface, a first alignment groove and a first cladding area profile measuring surface, wherein the first cladding area profile measuring surface corresponds to the shape of a semi-finished cladding area standard part; the cladding area thickness sample plate comprises a molded line positioning surface II, a pair of line grooves II and a cladding area outline measuring surface II, and the cladding area outline measuring surface II corresponds to the semi-finished product cladding area standard part in shape.
Description
Technical Field
The utility model relates to a blade processing technology field specifically is a steam turbine blade laser cladding detection device.
Background
The working environment of the last-stage blade of the steam turbine is water vapor, the last-stage blade is very easily influenced by water drops and water vapor in the steam in the high-speed operation process under the action of rotation speed and centrifugal force, the water erosion phenomenon of the blade jacking steam edge is generated, the water erosion can influence the output power and the service life of the whole unit, and meanwhile, the fracture risk generated by the blade can harm the safe operation of the whole unit. Laser cladding is used as a current advanced laser surface strengthening method and is applied to last-stage blades of multiple units in batches, the principle is that stellite alloy powder is melted and rapidly cooled through laser to form metallurgical bonding with a blade substrate, and the water erosion resistance of a steam inlet edge of a blade body is improved by utilizing the high hardness and the high wear resistance of the stellite alloy.
For example, the publication number is CN103659201A, the utility model is a processing technology of turbine blade adopting laser cladding water erosion prevention, the procedures of milling cladding groove, cladding stellite alloy, correcting, repair welding, polishing and the like in the laser cladding technology all relate to the control of the dimension of the cladding area, specifically, the process of milling cladding groove combines fig. 1, the part with shadow in fig. 1 is milled to obtain the cladding groove, the process of cladding alloy combines fig. 2, the shadow part in fig. 2 is the alloy cladded on the cladding groove, the cladding area is obtained after cladding the alloy, the semi-finished cladding area is obtained after polishing the cladding area, the final product is as shown in fig. 3, the redundant part of the blade is milled and the finished product cladding area is obtained after surface treatment. Because the surface after cladding has the difficulties of poor surface quality, high hardness, difficult cutting, difficult polishing and the like, the detection and process control method of the cladding area is a key factor for determining the technological capability and quality state of laser cladding.
SUMMERY OF THE UTILITY MODEL
To the problem that needs one set of detection device to come to detect blade laser cladding district, the utility model provides a turbine blade laser cladding detection device, it can be used for the detection in blade laser cladding district, and convenient to use has guaranteed to clad the quality.
The technical scheme is as follows: the utility model provides a turbine blade laser cladding detection device which characterized in that: the method comprises a cladding groove shape sample plate, a cladding area clamp repair sample plate and a cladding area thickness sample plate; the cladding groove shape template comprises a cladding groove profile measuring surface, and the cladding groove profile measuring surface corresponds to the cladding groove profile of the standard part; the cladding area clamp sample repairing plate comprises a first molded line positioning surface, a first alignment groove and a first cladding area profile measuring surface, wherein the first molded line positioning surface is used for positioning a blade and is attached to one surface of the blade profile, and the first cladding area profile measuring surface corresponds to a semi-finished product cladding area standard part in shape; the cladding area thickness sample plate comprises a second molded line positioning surface, a second alignment groove and a second cladding area contour measuring surface, the second molded line positioning surface is used for positioning the blade and is attached to the other surface of the blade, and the second cladding area contour measuring surface corresponds to the semi-finished cladding area standard part in shape.
It is further characterized in that:
the blade profile inner arc surface and the blade profile back arc surface to be processed are marked on the blade profile inner arc surface and the blade profile back arc surface;
the cladding area scribing sample block comprises a scribing groove positioned in the middle of the cladding area scribing sample block, the inner side surface of the scribing groove is an air inlet side positioning surface which is used for contacting with an air inlet edge of a blade to be processed, and the two ends of the scribing groove are provided with the sharp edges;
the cladding repair welding sample plate comprises a cladding area profile measuring surface III, and the cladding area profile measuring surface III corresponds to the shape of a finished product cladding area standard part;
the profile of the first cladding region profile measuring surface comprises the cladding region profile of the semi-finished cladding region standard part, and the distances between corresponding points between the profiles are equal; the profile of the second cladding area profile measuring surface comprises the cladding area profile of the semi-finished cladding area standard part, and the distances between corresponding points between the profiles are equal.
The utility model has the advantages that: the detection device can be used for detecting the cladding groove before cladding the blade, the semi-finished product cladding area after cladding and the finished product cladding area after cladding, if unqualified blades are found, the blades can be repaired in time, the cladding quality is ensured, the use is convenient, meanwhile, the blade does not need to depend on three-coordinate measuring instrument equipment too much, the productivity is released, and the measurement cost is reduced.
Drawings
FIG. 1 is a schematic view of a cladding groove structure;
FIG. 2 is a schematic structural diagram of a semi-finished product cladding area;
FIG. 3 is a schematic structural view of a cladding region of a finished product;
FIG. 4 is a schematic structural diagram of a cladding area scribing sample block;
FIG. 5 is a schematic view of a cladding groove shape template structure;
FIG. 6 is a schematic diagram of a repair template structure of a cladding area clamp;
FIG. 7 is a schematic structural diagram of a thickness template of a cladding region;
fig. 8 is a schematic structural view of a cladding repair welding template.
Detailed Description
As shown in fig. 4-8, the laser cladding detection device for the turbine blade comprises a cladding area marking sample block 1, a cladding groove shape sample plate 2, a cladding area clamp repair sample plate 3, a cladding area thickness sample plate 4 and a cladding repair welding sample plate 5, and when the device is used, the device can be placed on a conventional detection frame and is designed according to the shapes of actual required gear heights; with reference to fig. 4, the cladding area marking sample block 1 includes a sharp edge 11 for marking the inner arc surface and the back arc surface of the blade profile of the blade to be processed, the cladding area marking sample block 1 further includes a marking groove 13 located in the middle of the cladding area marking sample block, the inner side surface of the marking groove is an air inlet side positioning surface 12, the air inlet side positioning surface 12 is used for contacting with the air inlet side of the blade 100 to be processed, the sharp edges 11 are arranged at the two ends of the marking groove 13, after the bottom of the blade is marked as shown in fig. 4, the top of the blade can be marked by directly moving the blade upwards, and the use is convenient; with reference to fig. 5, the cladding groove shape template 2 includes a cladding groove profile measuring surface 21, and the cladding groove profile measuring surface 21 corresponds to the cladding groove profile of the standard component; referring to fig. 6, the cladding area clamp sample plate 3 includes a first molded line positioning surface 33, a first alignment groove 31, and a first cladding area profile measuring surface 32, where the first cladding area profile measuring surface 32 corresponds to the semi-finished cladding area standard part in shape, and the first molded line positioning surface 33 is used for attaching to the inner arc surface of the blade profile; with reference to fig. 7, the cladding area thickness template 4 includes a second molded line positioning surface 43, a second alignment groove 41 and a second cladding area profile measuring surface 42, the second cladding area profile measuring surface 42 corresponds to the semi-finished cladding area standard part in shape, and the second molded line positioning surface 43 is used for attaching to the blade-shaped back arc surface; referring to fig. 8, the cladding repair welding sample plate 5 includes a third cladding area contour measuring surface 51, and the third cladding area contour measuring surface 51 corresponds to the shape of the finished cladding area standard part.
In addition, the profile of the first cladding area profile measuring surface 32 comprises the cladding area profile of the semi-finished cladding area standard part, and the distances between corresponding points are equal, namely, the profile of the first cladding area profile measuring surface 32 is formed by uniformly expanding the cladding area profile of the semi-finished cladding area standard part, so that a feeler gauge and a feeler pin can be placed for measuring when light leakage is measured, and repair is facilitated; similarly, the profile of the second cladding region profile measuring surface 42 includes the cladding region profile of the semi-finished cladding region standard component, and the distances between the corresponding points are equal.
A turbine blade laser cladding detection method uses the turbine blade laser cladding detection device for detection, and comprises the following steps: firstly, scribing; the air inlet edge of the blade to be machined is contacted with an air inlet side positioning surface 12 of a cladding area marking sample block 1, marking marks are marked on the blade profile inner arc surface and the back arc surface of the blade through a sharp edge 11, the positions of the marking marks cannot be milled when a cladding groove is milled, and namely the positions of the marking marks are far away from the junction positions of the cladding groove and the blade profile inner arc surface and the back arc surface.
Secondly, detecting the shape of the cladding groove; and (3) attaching the processed cladding groove on the cladding groove profile measuring surface 21 of the cladding groove shape sample plate 2, checking the light leakage condition, and repairing if the light leakage exceeds the process requirement, namely the cladding groove is unqualified.
Thirdly, detecting the shape of the semi-finished product cladding area; attaching one surface of the cladded blade profile to a first molded line positioning surface 33 of a cladding area clamp sample repairing plate 3, enabling a marking mark to correspond to a first alignment groove 31, checking the light leakage condition between the first cladding area profile measuring surface 33 and the cladding area, repairing the unqualified semi-finished product cladding area, and removing fish scale marks and oxide layers on the surface; and (3) attaching the other surface of the cladded blade profile to the second profile positioning surface 43 of the cladding area thickness sample plate 4, enabling the marking mark to correspond to the second alignment groove 41, checking the light leakage condition between the second cladding area profile measuring surface 42 and the cladding area, repairing the unqualified cladding area of the semi-finished product, and removing the fish scale lines and the oxide layer on the surface.
Fourthly, detecting the shape of a finished product cladding area; and (3) attaching the clad finished blade to the clad area profile measuring surface III 51 of the clad repair welding sample plate 5, checking the light leakage condition between the clad finished blade and the clad area profile measuring surface III, and repairing the clad area of the finished product if the clad finished blade is unqualified.
By adopting the mode to detect in the laser cladding process, the qualification rate of cladding groove processing and repairing, cladding area polishing and repairing can be effectively controlled at a higher level by combining process requirements and batch production verification.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a turbine blade laser cladding detection device which characterized in that: the method comprises a cladding groove shape sample plate, a cladding area clamp repair sample plate and a cladding area thickness sample plate; the cladding groove shape template comprises a cladding groove profile measuring surface, and the cladding groove profile measuring surface corresponds to the cladding groove profile of the standard part; the cladding area clamp sample repairing plate comprises a first molded line positioning surface, a first alignment groove and a first cladding area profile measuring surface, wherein the first cladding area profile measuring surface corresponds to the shape of a semi-finished cladding area standard part; the cladding area thickness sample plate comprises a molded line positioning surface II, a pair of line grooves II and a cladding area outline measuring surface II, and the cladding area outline measuring surface II corresponds to the semi-finished product cladding area standard part in shape.
2. The laser cladding detection device for the turbine blade according to claim 1, wherein: the blade profile inner arc surface and the blade profile back arc surface are used for marking the blade profile inner arc surface and the blade profile back arc surface to be processed.
3. The laser cladding detection device for the turbine blade according to claim 2, wherein: the cladding area marking sample block comprises a marking groove located in the middle of the cladding area marking sample block, the inner side surface of the marking groove is an air inlet side positioning surface, the air inlet side positioning surface is used for being in contact with an air inlet edge of a blade to be processed, and the two ends of the marking groove are provided with sharp edges.
4. The laser cladding detection device for the turbine blade according to claim 3, wherein: the welding device further comprises a cladding repair welding sample plate, wherein the cladding repair welding sample plate comprises a cladding area profile measuring surface III, and the cladding area profile measuring surface III corresponds to the shape of a finished product cladding area standard part.
5. The laser cladding detection device for the turbine blade according to claim 1, wherein: the profile of the first cladding region profile measuring surface comprises the cladding region profile of the semi-finished cladding region standard part, and the distances between corresponding points between the profiles are equal; the profile of the second cladding area profile measuring surface comprises the cladding area profile of the semi-finished cladding area standard part, and the distances between corresponding points between the profiles are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255029.8U CN213842048U (en) | 2020-10-12 | 2020-10-12 | Turbine blade laser cladding detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255029.8U CN213842048U (en) | 2020-10-12 | 2020-10-12 | Turbine blade laser cladding detection device |
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| Publication Number | Publication Date |
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| CN213842048U true CN213842048U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022255029.8U Active CN213842048U (en) | 2020-10-12 | 2020-10-12 | Turbine blade laser cladding detection device |
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| CN (1) | CN213842048U (en) |
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