CN216264707U - Gas turbine nozzle machining device - Google Patents
Gas turbine nozzle machining device Download PDFInfo
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- CN216264707U CN216264707U CN202122829880.1U CN202122829880U CN216264707U CN 216264707 U CN216264707 U CN 216264707U CN 202122829880 U CN202122829880 U CN 202122829880U CN 216264707 U CN216264707 U CN 216264707U
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- pressing plate
- nozzle
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- supporting column
- long pressing
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Abstract
The gas turbine nozzle machining device comprises a clamp body, wherein an outer spigot clamped with a plurality of nozzle monomers is arranged on the clamp body, the nozzle monomers are fixed on the clamp body through matching of a chamfered edge pin and a cylindrical pin with mounting holes in the nozzle monomers, a plurality of first central support columns and a plurality of left support columns which are detachable and evenly distributed along the same circumference are arranged on the inner side of the outer spigot, and a plurality of second central support columns and a plurality of right support columns which are detachable and evenly distributed along the same circumference are arranged on the outer side of the outer spigot; when the short pressing plate or the long pressing plate is installed on the first central supporting column, the short pressing plate or the long pressing plate is fixed on the first central supporting column through a fastening piece, the left end part of the short pressing plate or the long pressing plate is arranged on the left supporting column, and the right end part of the short pressing plate or the long pressing plate is pressed on the nozzle monomer; when the short pressing plate or the long pressing plate is installed on the second central supporting column, the center of the short pressing plate or the long pressing plate is fixed on the second central supporting column through a fastening piece, the right end of the short pressing plate or the long pressing plate is arranged on the right supporting column, and the left end of the short pressing plate or the long pressing plate is pressed on the single nozzle body.
Description
Technical Field
The utility model relates to the field of auxiliary accessories of gas turbines, in particular to a gas turbine nozzle machining device.
Background
Gas turbine nozzles are hot, hot parts of combustion engines. As shown in FIG. 2, the structure of the turbine nozzle is a large-size circular nozzle formed by assembling 20 sets of nozzle single bodies along the circumference, and the nozzle single bodies are formed by integrally and directly casting three groups of blades, which are also called as a triplet nozzle, as shown in FIG. 1. The turbine nozzle is very high in installation and positioning accuracy in a gas turbine unit and extremely difficult to machine, because an expansion gap of about 3mm is formed between adjacent nozzle monomers, the nozzle monomers are generally machined independently by a milling machine in the prior art, and then the nozzle monomers are assembled into a large nozzle. However, in the processing mode, the processing is carried out for 20 times, errors exist in each clamping and positioning, the form and position tolerance and the quality of a product cannot be met, a long time is consumed, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a gas turbine nozzle machining device, through the use of the device, a plurality of nozzle single bodies can be positioned and machined at one time, the quality of the nozzle single bodies is ensured, and the machining requirement of a gas turbine nozzle is met.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the gas turbine nozzle machining device comprises a clamp body, wherein an outer spigot clamped with a plurality of nozzle monomers is arranged on the clamp body, the nozzle monomers are fixed on the clamp body through matching of a chamfered edge pin and a cylindrical pin with mounting holes in the nozzle monomers, a plurality of first central support columns and a plurality of left support columns which are detachable and evenly distributed along the same circumference are arranged on the inner side of the outer spigot, and a plurality of second central support columns and a plurality of right support columns which are detachable and evenly distributed along the same circumference are arranged on the outer side of the outer spigot; when the short pressing plate or the long pressing plate is installed on the first central supporting column, the short pressing plate or the long pressing plate is fixed on the first central supporting column through a fastening piece, the left end part of the short pressing plate or the long pressing plate is arranged on the left supporting column, and the right end part of the short pressing plate or the long pressing plate is pressed on the nozzle monomer; when the short pressing plate or the long pressing plate is installed on the second central supporting column, the center of the short pressing plate or the long pressing plate is fixed on the second central supporting column through a fastening piece, the right end of the short pressing plate or the long pressing plate is arranged on the right supporting column, and the left end of the short pressing plate or the long pressing plate is pressed on the single nozzle body.
According to the further technical scheme, the middle sections of the short pressing plate and the long pressing plate are provided with sliding grooves, and the fastening positions of the short pressing plate and the long pressing plate can be adjusted by the fastening piece according to actual needs.
In a further technical scheme, the fastener is a compression bolt.
According to a further technical scheme, the first central supporting column is located on the inner ring of the fixture body, and the second central supporting column is located on the outer ring of the fixture body.
According to a further technical scheme, the number of the first central supporting columns and the number of the second central supporting columns are respectively 20, and the corresponding first central supporting columns and the corresponding second central supporting columns are located on the same central line of the fixture body.
Further technical scheme, in the course of working, when short clamp plate replaced long clamp plate, need dismantle left branch dagger or right branch dagger, install on the fixed orifices that is close to short clamp plate, press one end of short clamp plate on left branch dagger or right branch dagger.
The working principle of the utility model is as follows:
the method comprises the steps of placing 20 gas turbine nozzle monomers on the fixture body, accurately positioning each triplet nozzle through a trimming pin and a cylindrical pin, tightly pressing the triplet nozzles through a long pressing plate and a short pressing plate through a fastener and a supporting column, then accurately processing the blade root and the blade crown of the nozzle, and after finish turning, integrally transferring the fixture body and the nozzle onto a rotary table of a boring and milling machine for boring and milling, so that secondary clamping of the nozzle is avoided, a plurality of nozzles can be processed at one time during milling, form and position tolerance and quality of products are guaranteed, and working efficiency is improved.
Advantageous effects
Compared with the prior art, the utility model has the following remarkable advantages:
the nozzle single body machining tool is simple in structure and convenient to operate, can meet the requirement of whole machining of 20 nozzle single bodies only by once clamping, greatly reduces the cost of the tool clamp, greatly improves the machining efficiency, and simultaneously ensures the form and position tolerance and quality of the nozzle by once machining.
Drawings
FIG. 1 is a schematic view of a turbine nozzle configuration;
FIG. 2 is a front view of the nozzle unit;
FIG. 3 is a side view of the nozzle monomer;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a first schematic view of the process of the example;
FIG. 7 is a second schematic view of the process in the example;
FIG. 8 is a third schematic view of the process in the example;
the labels in the figure are: 1. the clamp body, 2 and a plurality of left branch dagger, 3, fastener, 4, long clamp plate, 5, edging round pin, 6, cylindric lock, 7, short clamp plate, 8, nozzle monomer, 9, outer tang, 10, first center support post, 11, second center support post, 12 and a plurality of right branch dagger, 13, mounting hole, 14, spout.
Detailed Description
The present invention will be described in detail with reference to examples and application examples. It should be noted that the illustrated embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the claimed invention, nor are the applications and methods of use of the present invention limited to the illustrated embodiments.
Examples
As shown in fig. 4 and 5, the gas turbine nozzle processing device includes a fixture body 1, an outer spigot 9 clamped with a plurality of nozzle monomers 8 is arranged on the fixture body 1, the nozzle monomers 8 are fixed on the fixture body 1 through matching of a chamfered edge pin 5 and a cylindrical pin 6 with a mounting hole 13 on the nozzle monomers 8, a plurality of first central support columns 10 and a plurality of left support columns 2 which are detachable and evenly distributed along the same circumference are arranged on the inner side of the outer spigot 9, and a plurality of second central support columns 11 and a plurality of right support columns 12 which are detachable and evenly distributed along the same circumference are arranged on the outer side of the outer spigot 9; when the short pressing plate 7 or the long pressing plate 4 is installed on the first central supporting column 10, the short pressing plate 7 or the long pressing plate 4 is fixed on the first central supporting column 10 through the fastening piece 3, the left end portion of the short pressing plate 7 or the long pressing plate 4 is arranged on the left supporting column 2, and the right end portion of the short pressing plate is pressed on the nozzle single body 8; when the short pressing plate 4 or the long pressing plate 7 is installed on the second central supporting column 11, the center of the short pressing plate 4 or the long pressing plate 7 is fixed on the second central supporting column through the fastening piece 3, the right end part of the short pressing plate 4 or the long pressing plate 7 is arranged on the right supporting column 12, and the left end part of the short pressing plate is pressed on the nozzle single body 8.
The middle sections of the short pressing plate 4 and the long pressing plate 7 are provided with sliding grooves 14, and the fastening positions of the short pressing plate and the long pressing plate can be adjusted by the fastening piece 3 according to actual requirements.
The fastener 3 is a compression bolt.
The first central support column 10 is located at the inner ring of the fixture body 1, and the second central support column 11 is located at the outer ring of the fixture body 1.
The number of the first central support columns 10 and the number of the second central support columns 11 are 20, and the corresponding first central support columns 10 and the corresponding second central support columns 11 are located on the same central line of the fixture body 1.
In the processing process, when the short pressing plate 7 replaces the long pressing plate 4, the left supporting column 2 or the right supporting column 12 needs to be detached and installed on a fixing hole close to the short pressing plate 7, and one end part of the short pressing plate 7 is pressed on the left supporting column 2 or the right supporting column 12.
The working process of the utility model is as follows:
1. as shown in fig. 4, the gas turbine nozzle single bodies (20) are placed on the clamp body through the outer spigot 9 of the clamp body 1, the chamfered edge pin 5 is inserted for rough positioning, the nozzle single bodies are lightly pressed through the cooperation of the first central support column 10, the fastener 3 and the long pressing plate 4, then the cylindrical pin 6 (for precise positioning, nuts at all positions are tightened at the time, the nozzle single bodies are pressed, and the blade crowns of the nozzle single bodies are roughly and finely processed.
2. As shown in fig. 6, after the tip shroud of the nozzle unit (20 sets) is machined, the long pressing plate 4 is removed, the nozzle unit is pressed by the short pressing plate 7, and the tip shroud inlet side portion of the tip shroud of the nozzle unit is machined.
3. As shown in fig. 7, after the machining of the tip shroud and the air intake side crown of the single nozzle body (20 sets) is completed, the first central supporting column 10 and the plurality of left supporting columns 2 are removed, the second central supporting column 11, the right supporting column 12 and the long pressing plate 4 are installed on the second central supporting column, the single nozzle body is pressed, and the blade root of the single nozzle body is roughly and finely machined.
4. As shown in fig. 8, after the blade root of the single nozzle (20 sets) is machined, the long pressing plate 4 is removed, the single nozzle is pressed by the short pressing plate 7, and the root top air inlet side of the blade root of the single nozzle is machined.
5. After the whole processing of the single nozzle is finished, the fixture body and the single nozzle (20 sets) are integrally transferred onto a rotary table of a boring and milling machine for boring and milling, and a plurality of nozzles are processed at one time during milling processing to ensure form and position tolerance and quality of the nozzles.
Claims (7)
1. Gas turbine nozzle processingequipment, including the anchor clamps body, be equipped with the outer tang with a plurality of nozzle monomer block on the anchor clamps body, its characterized in that: the nozzle monomer is fixed on the fixture body through the matching of the chamfered edge pin and the cylindrical pin with the mounting hole on the nozzle monomer, a plurality of first central support columns and a plurality of left support columns which are detachable and evenly distributed along the same circumference are arranged on the inner side of the outer spigot, and a plurality of second central support columns and a plurality of right support columns which are detachable and evenly distributed along the same circumference are arranged on the outer side of the outer spigot; when the short pressing plate or the long pressing plate is installed on the first central supporting column, the short pressing plate or the long pressing plate is fixed on the first central supporting column through a fastening piece, the left end part of the short pressing plate or the long pressing plate is arranged on the left supporting column, and the right end part of the short pressing plate or the long pressing plate is pressed on the nozzle monomer; when the short pressing plate or the long pressing plate is installed on the second central supporting column, the center of the short pressing plate or the long pressing plate is fixed on the second central supporting column through a fastening piece, the right end of the short pressing plate or the long pressing plate is arranged on the right supporting column, and the left end of the short pressing plate or the long pressing plate is pressed on the single nozzle body.
2. The gas turbine nozzle machining apparatus of claim 1, wherein: the middle sections of the short pressing plate and the long pressing plate are provided with sliding grooves, and the fastening positions of the short pressing plate and the long pressing plate can be adjusted by the fastening piece according to actual needs.
3. The gas turbine nozzle machining apparatus according to claim 1 or 2, wherein: the fastener is a compression bolt.
4. The gas turbine nozzle machining apparatus of claim 1, wherein: the first central supporting column is positioned on the inner ring of the fixture body, and the second central supporting column is positioned on the outer ring of the fixture body.
5. The gas turbine nozzle machining apparatus of claim 1, wherein: the number of the first central supporting columns and the number of the second central supporting columns are respectively 20, and the corresponding first central supporting columns and the corresponding second central supporting columns are located on the same central line of the fixture body.
6. The gas turbine nozzle machining apparatus of claim 1, wherein: the mounting hole on the nozzle monomer is positioned at the bottom of the blade crown of the nozzle.
7. The gas turbine nozzle machining apparatus of claim 1, wherein: in the course of working, when short clamp plate replaced long clamp plate, need to dismantle left branch dagger or right branch dagger, install on the fixed orifices that is close to short clamp plate, press one end of short clamp plate on left branch dagger or right branch dagger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122829880.1U CN216264707U (en) | 2021-11-18 | 2021-11-18 | Gas turbine nozzle machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122829880.1U CN216264707U (en) | 2021-11-18 | 2021-11-18 | Gas turbine nozzle machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216264707U true CN216264707U (en) | 2022-04-12 |
Family
ID=81035036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122829880.1U Active CN216264707U (en) | 2021-11-18 | 2021-11-18 | Gas turbine nozzle machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216264707U (en) |
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2021
- 2021-11-18 CN CN202122829880.1U patent/CN216264707U/en active Active
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