CN218983942U - Gas turbine water conservancy diversion bush car anchor clamps - Google Patents
Gas turbine water conservancy diversion bush car anchor clamps Download PDFInfo
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- CN218983942U CN218983942U CN202320067535.5U CN202320067535U CN218983942U CN 218983942 U CN218983942 U CN 218983942U CN 202320067535 U CN202320067535 U CN 202320067535U CN 218983942 U CN218983942 U CN 218983942U
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- shaped soft
- inner arc
- claws
- arc
- anchor clamps
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Abstract
The utility model discloses a turning clamp for a guide bush of a gas turbine, and belongs to the field of machining and manufacturing of gas turbines. The utility model provides a gas turbine water conservancy diversion bush car anchor clamps, includes anchor clamps body, screw rod, nut, screw and interior circular arc soft claw, the anchor clamps body include square bottom plate, locate the jackshaft on the square bottom plate, be close to the outer lane of jackshaft both ends department and be equipped with a plurality of interior circular arc soft claws that are used for supporting the water conservancy diversion bush respectively, interior circular arc soft claw passes through the screw rod and is connected with the jackshaft, radial position through the soft claw of nut adjustment interior circular arc to through the screw locking of locating interior circular arc soft claw side. The turning fixture disclosed by the utility model has high precision, the parallelism of the two end surfaces of the guide bushing of the gas turbine is ensured to be within 0.03mm, and the coaxiality of all excircles and spigots is ensured to be within 0.03 mm.
Description
Technical Field
The utility model relates to the field of gas turbine machining and manufacturing, in particular to a guide bush turning clamp of a gas turbine.
Background
At present, the wall thickness of the guide bushing of the gas turbine is only 5mm, the length is more than 1500mm, the guide bushing belongs to an extremely thin and ultra-long workpiece, the clamping and processing deformation of the workpiece are very large, but the form and position tolerance requirement is very high, some form and position tolerances even need to be controlled below 0.03mm, and the workpiece is easy to produce cutter connection marks in the processing process, so that the quality and appearance of the workpiece are influenced, the existing turning clamp cannot meet the requirement, and therefore, the turning clamp is urgently needed to ensure smooth turning of the guide bushing.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the turning clamp for the guide bush of the gas turbine, which can meet the high-precision processing requirement of extremely thin and ultra-long workpieces such as the guide bush of the gas turbine.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a gas turbine water conservancy diversion bush car anchor clamps, includes anchor clamps body, screw rod, nut, screw and interior circular arc soft claw, the anchor clamps body include square bottom plate, locate the jackshaft on the square bottom plate, be close to the outer lane of jackshaft both ends department and be equipped with a plurality of interior circular arc soft claws that are used for supporting the water conservancy diversion bush respectively, interior circular arc soft claw passes through the screw rod and is connected with the jackshaft, radial position through the soft claw of nut adjustment interior circular arc to through the screw locking of locating interior circular arc soft claw side.
According to a further technical scheme, the outer arc surface of the inner arc-shaped soft claw is attached to the inner wall of the guide bushing.
Further technical proposal, the inner arc-shaped soft claws positioned on the same side are combined into a circle, and the circle center of the soft claws is the same as that of the middle shaft.
According to a further technical scheme, the number of the arc-shaped soft claws is 8, and the number of the arc-shaped soft claws is 4 at two ends of the middle shaft respectively.
According to a further technical scheme, the inner arc-shaped soft claw is a quarter inner arc.
According to a further technical scheme, the middle shaft is provided with a center hole at the end far away from the square bottom plate, and the center hole is matched with the thimble on the tailstock of the machine tool to fix the turning clamp. Advantageous effects
Compared with the prior art, the utility model has the following remarkable advantages:
1. the turning fixture disclosed by the utility model has high precision, the parallelism of the two end surfaces of the guide bushing of the gas turbine is ensured to be within 0.03mm, and the coaxiality of all excircles and spigots is ensured to be within 0.03 mm. The whole outer circle of the guide bush is formed by one-step machining, no tool mark is generated, and the assembly requirements of the guide bush and the combustion chamber shell are met.
2. The utility model can greatly reduce clamping and processing deformation, ensure geometric tolerance and ensure that the processed guide bushing completely meets various technical requirements of drawings.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a schematic view of the present utility model mounted on a machine tool for machining;
in the figure: 1 a clamp body, 2 inner arc-shaped soft claws, 3 screws, 4 nuts, 5 screws, 6 square bottom plates, 7 intermediate shafts, 8 guide bushings, 9 center holes, 10 ejector pins, 11 sleeper lathes, 12 clamping jaws and 13 lathe tailstocks.
Description of the embodiments
The present utility model 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 utility model, and are not intended to limit the scope of the utility model, nor is the application and method of use of the utility model limited to the illustrated embodiments.
Examples
As shown in fig. 1-3, a gas turbine diversion liner turning clamp comprises a clamp body 1, a screw rod 3, a nut 4, a screw 5 and inner circular arc-shaped soft claws 2, wherein the clamp body 1 comprises a square bottom plate 6 and a middle shaft 7 arranged on the square bottom plate 6, a plurality of inner circular arc-shaped soft claws 2 used for supporting diversion liners 8 are respectively arranged on outer rings close to two ends of the middle shaft 7, the inner circular arc-shaped soft claws 2 are connected with the middle shaft 7 through the screw rod 3, the radial positions of the inner circular arc-shaped soft claws 2 are adjusted through the nut 4 on the screw rod 3, and the inner circular arc-shaped soft claws 2 are locked through the screw 5 arranged on the side surfaces of the inner circular arc-shaped soft claws 2.
The outer arc surface of the inner arc-shaped soft claw 2 is attached to the inner wall of the guide bush 8. The inner arc-shaped soft claws 2 positioned on the same side are combined into a circle, and the circle center of the inner arc-shaped soft claws is the same as that of the middle shaft 7.
The number of the inner arc-shaped soft claws 2 is 8, and the two ends of the intermediate shaft 7 are respectively provided with 4 inner arc-shaped soft claws 2. The inner arc-shaped soft claw 2 is a quarter inner arc.
The end part of the intermediate shaft 7 far away from the square bottom plate 6 is provided with a center hole 9 which is matched with a thimble 10 on a tailstock of the machine tool to fix the turning clamp.
1. The clamping jaw on the horizontal lathe is used for clamping and fixing the square bottom plate, the circumferential surface of the guide bush is corrected according to the intermediate shaft, the parallelism of the planes of the two sides of the guide bush is corrected according to the end surface of the square bottom plate, and meanwhile, the soft claw is kept in a loose state.
2. The nylon rope is used for the guide bushing to be covered from the lower side, and the guide bushing is slowly sleeved on the middle shaft from the right side.
3. Then the radial position of the soft claw is changed by rotating the nut, the guide bushing is expanded from the inside by the soft claw, and finally the soft claw is locked by the screw on the side surface of the soft claw, so that the soft claw is prevented from shaking in the processing process.
4. The tail seat of the sleeper is opened, and the center hole at the right end of the middle shaft is tightly propped by the ejector pin, so that the diversion bushing can be machined. The two end faces of the guide bush can be processed on the sleeper at the same time, so that the parallelism of the two end faces is ensured to be within 0.03 mm. The excircles and the spigot at the two ends can be processed at the same time, so that the coaxiality of all the excircles and the spigot is ensured to be within 0.03 mm. The whole outer circle of the guide bush is formed by one-step machining, no tool mark is generated, and the assembly requirements of the guide bush and the combustion chamber shell are met.
Claims (6)
1. The utility model provides a gas turbine water conservancy diversion bush car anchor clamps, includes anchor clamps body, screw rod, nut and screw, its characterized in that: the clamp comprises a clamp body, a guide sleeve and a guide sleeve, and is characterized by further comprising an inner arc-shaped soft claw, wherein the clamp body comprises a square bottom plate and an intermediate shaft arranged on the square bottom plate, a plurality of inner arc-shaped soft claws used for supporting the guide sleeve are respectively arranged on outer rings close to two ends of the intermediate shaft, the inner arc-shaped soft claws are connected with the intermediate shaft through screws, the radial positions of the inner arc-shaped soft claws are adjusted through nuts, and the inner arc-shaped soft claws are locked through screws arranged on the side surfaces of the inner arc-shaped soft claws.
2. The lathe clamp according to claim 1, characterized in that: the outer arc surface of the inner arc-shaped soft claw is attached to the inner wall of the guide bushing.
3. The lathe clamp according to claim 1, characterized in that: the inner arc-shaped soft claws positioned on the same side are combined into a circle, and the circle center of the inner arc-shaped soft claws is the same as that of the middle shaft.
4. The lathe clamp according to claim 1, characterized in that: the number of the arc-shaped soft claws is 8, and the two ends of the middle shaft are respectively 4 arc-shaped soft claws.
5. The lathe clamp according to claim 1 or 4, characterized in that: the inner arc-shaped soft claw is a quarter inner arc.
6. The lathe clamp according to claim 1 or 4, characterized in that: the middle shaft is provided with a center hole at the end far away from the square bottom plate, and is matched with the thimble on the tailstock of the machine tool to fix the turning clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067535.5U CN218983942U (en) | 2023-01-10 | 2023-01-10 | Gas turbine water conservancy diversion bush car anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067535.5U CN218983942U (en) | 2023-01-10 | 2023-01-10 | Gas turbine water conservancy diversion bush car anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218983942U true CN218983942U (en) | 2023-05-09 |
Family
ID=86190817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320067535.5U Active CN218983942U (en) | 2023-01-10 | 2023-01-10 | Gas turbine water conservancy diversion bush car anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218983942U (en) |
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2023
- 2023-01-10 CN CN202320067535.5U patent/CN218983942U/en active Active
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